Abstract: The main body frame includes a first frame including a flexible protruding plate portion, a second frame facing the first frame in a first direction to form the housing section, and a snap-fit mechanism connecting the first frame to the second frame. The snap-fit mechanism includes a fitted portion provided on the flexible protruding plate portion and a fitting projection portion provided on a side wall of the second frame and fitting with the fitted portion. The fitting projection portion and the fitted portion are fitted by bringing the first and second frames into relative proximity in the first direction, and the fitting is released by relatively displacing the first and second frames in a second direction orthogonal to the first direction.

Abstract: An apparatus includes a housing, a component cradle, and a plurality of towers. The housing generally has an inner mounting surface. The component cradle may be formed on the inner mounting surface of the housing. The plurality of towers may be formed on and extending from the inner mounting surface of the housing around the component cradle. The towers are generally deformable into a form-fitting engagement with an electronic component placed on the component cradle.

Abstract: A cable assembly includes a cable and a cable mounting clamp. The cable mounting clamp includes a base removably connectable to a surface. The base includes an outer body which defines an inner channel and a support ramp disposed within the inner channel, the inner channel extending along a longitudinal axis. The cable mounting clamp further includes a roller tube disposed within the inner channel and moveably mounted on the support ramp, the roller tube translatable along the longitudinal axis relative to the support ramp. The cable is inserted through the roller tube and extends through the inner channel, such that the cable is translatable with the roller tube along the longitudinal axis.

Abstract: A bracket includes a base for external connection and a hooking part connected with the base, a bending portion of the hooking part forms a groove, a groove wall connected the groove with the base is provided with a mounting hole, the mounting hole is provided with a damping element, and a damping portion of the damping element is located in the groove.

Abstract: An adjustable air block for routing cables includes a housing, a first inner plate, and a second inner plate. The housing includes a central gate extending between a top end and a bottom end thereof. The first inner plate and the second inner plate are fastened at the top end of the housing. The first inner plate includes a first vertical portion adjustably coupled to a left edge of the central gate along a first inner surface. The second inner plate includes a second vertical portion adjustably coupled to a right edge of the central gate along a second inner surface.

Abstract: A door curtain hook device for a vehicle may include a frame mount configured to be fixed to a door frame of the vehicle; a curtain hook having a wedge portion configured to be coupled with the frame mount and a curtain locking portion in which a door curtain is hooked integrally formed thereon; and a door curtain mounting gap formed to have a hook structure in the curtain locking portion.

Abstract: A bracket adapted to couple to a slot disposed in a pegboard or slot-type wall and hold receptacles. The receptacles can be different sizes and be disposed at different elevations on the bracket. The bracket can also be coupled to the wall via a hook and a fastener to reduce accidental decoupling of the bracket from the wall.

Abstract: Disclosed are systems and methods for coupling a first panel to a second panel via a fastening system. The fastening system comprises fastener and a doghouse structure. The fastener includes a head assembly coupled to a collar. The collar is configured to pass through and to retain the second panel via an opening formed in the second panel. The doghouse structure defines a chamber that is configured to receive and secure the head assembly. The doghouse structure is positioned on the first panel and is configured to pass at least partially through the opening.

Abstract: The present disclosure provides a seat track mechanism installed beneath a vehicle seat in order to move the vehicle seat in the forward and backward directions. A monotrack mechanism, to which a monopost structure and a single rail structure are applied, is installed at the bottom of the seat. The seat track mechanism includes a structure for hook-engaging lower and upper rails constituting the mono track mechanism by hook guides, thereby being capable of securing sufficient strength upon head-on or rear-end collision. The present disclosure also provides a seat track mechanism for a vehicle including a locking mechanism capable of enhancing stability of a passenger through structural reinforcement given at the bottom of the vehicle when it is necessary to ensure safety of the passenger in a situation such as collision or sudden stop or the like.

Abstract: A shelf sign system. The shelf sign system has a base portion having a shelf member configured to be secured to a shelf, an extender extending from the shelf member, and a sign receiver arranged at an end of the extender opposite the shelf member. The sign receiver comprises a head and two grooves defining a neck. A width of the neck is less than a width of the head. The system includes a first sign portion configured to be removably coupled to the sign receiver. Each of two opposing surfaces of the first sign portion are configured to be printable. The first sign portion has a coupling opening. The system includes a second sign portion configured to be removably coupled to the base portion. The first sign portion is removably coupled to and suspended from the base portion whereby the head extends through the coupling opening.

Abstract: A plug connector assembly includes a first plug connector part arranged on a printed circuit board (PCB) and a second plug connector part. Stamped/bent parts are positioned next to respective sides of the first plug connector part and are fastened to the PCB. In one variation, each stamped/bent part forms a spring arm, and when the plug connector parts are connected, end sections of the spring arms engage in respective detent recesses (or notches) in a base body of the second plug connector part thereby fixing the plug connector parts together. In another variation, each stamped/bent part has a detent recess, and a base body of the second plug connector part has spring arms on respective sides of the base body which lock with the detent recesses in the stamped/bent parts when the plug connector parts are connected thereby fixing the plug connector parts together.

Abstract: Systems and methods of deploying seismic data acquisition units from a marine vessel are disclosed. The system can include a spindle coupled to a tether. A robotic arm can couple the spindle to a tether via one or more tumblers. The tether can connect to a seismic data acquisition unit via a connection block having a mechanical force device. The assembled spindle, tether and seismic data acquisition unit can be deployed from the deck via a deployment block.

Abstract: A package is disclosed that has a support sheet with a cut-out. A product container supported by a locating sheet is held against at least one face of the support sheet. A split ring is carried by opposite faces of the support sheet and the locating sheet and disposed about the cut-out.

Abstract: A temperature detecting device is equipped with an insertion hole structure for guiding a case which is inserted from outside into a holder that covers an outer wall of a battery cell, to the outer wall of the battery cell. In this insertion structure, a plurality of load distribution portions, specifically a first structure and a second structure, are formed at the periphery of an opening of an insertion hole. The load is generated upon abutment on a foreign matter that is about to enter through the insertion hole toward the battery cell. The load distribution portions distribute and release a load to the periphery of the opening.

Abstract: Systems and methods of deploying seismic data acquisition units from a marine vessel are disclosed. The system can include a spindle coupled to a tether. A robotic arm can couple the spindle to a tether via one or more tumblers. The tether can connect to a seismic data acquisition unit via a connection block having a mechanical force device. The assembled spindle, tether and seismic data acquisition unit can be deployed from the deck via a deployment block.

Abstract: A snap-on mounting bracket assembly suitable for connecting a mounting rail to a torque tube is provided. The mounting bracket assembly includes an upper clamp piece and a lower clamp piece. The upper clamp piece has a first member defining a tube insertion aperture and an open bottom space and includes an upper partial fastener. The lower clamp piece has a second member with a lower partial fastener configured to mate with the upper partial fastener such that the lower clamp piece is attachable to the upper clamp piece. In exemplary embodiments, the lower clamp piece further comprises two opposing support members configured to attach to the mounting rail. Solar tracker assemblies incorporating snap-on open mounting brackets are provided. Methods of mounting framed or unframed solar modules are also described. A mounting rail is attached to an upper clamp piece of a mounting assembly. Then the upper clamp piece is snapped onto a torque tube.

Abstract: Methods and apparatus for a decorative attachment system for a syringe according to various aspects of the present technology include a figurine and a clip used to connect the figurine to a syringe during use. The clip is configured to be securely attached to the figurine on one end and receive and hold the syringe on a second end.

Abstract: In an illustrative embodiment, an aircraft seatback pocket spring provides a pre-loaded spring force for holding the pocket closed. The pocket spring may include a length of a wire extending between inner surfaces of frame members on either side of the seat and forming an upper edge of the pocket. Second lengths of wire may extend from ends of the first length of wire in a vertical direction to form side edges of the seatback pocket. Coils may be formed at each end of the second lengths of wire and may be mounted to receiving elements provided on inner surfaces of the frame members. Extension members extending from the coils may contact a contact point on the same or proximate frame members to maintain the pre-loaded spring force on the coils.

Abstract: A steering wheel includes a steering wheel body including at least two insertion openings, and an airbag module including at least two hooks inserted into the insertion openings. The hooks are held by wires so that the airbag module is supported by the steering wheel body. Either the at least two hooks or the at least two insertion holes are provided with adjustment ribs which come into contact with the other ones of the at least two hooks and the at least two openings, thereby regulating the positions of the other ones, so as to receive the weight of the airbag module applied to the steering wheel body. Accordingly, a decrease in positioning performance of the airbag module is prevented, so as to regulate the position of the airbag module in the steering wheel body with high accuracy.

Abstract: A license plate mounting bracket for vehicles having horizontal grilles A license plate mounting bracket for vehicles having mesh or horizontal grilles includes a license plate holder, a first L-shaped backing having a forward-facing horizontal portion and a vertical portion, the vertical portion including a plurality of vertically-aligned threaded holes, and a first male-to-female standoff including an axial threaded hole at a female end thereof, a shoulder, and a male threaded portion extending from the shoulder, the male threaded portion of the first male-to-female standoff engaging one of the vertically-aligned threaded holes in the first L-shaped backing. The shoulders of the first male-to-female standoff are coupled to the license plate holder.

Abstract: A container for storing a biological sample is disclosed. The container includes a first chamber having a sidewall extending between an open end and a closed end, defining a first chamber interior adapted to receive a sample holder therein. The container also includes a second chamber having a sidewall extending between an open end and a closed end, defining a second chamber interior adapted to subsequently receive the sample holder therein. The second chamber interior is in fluid isolation from the first chamber interior. A removable closure encloses at least one of the open end of the first chamber and the open end of the second chamber while the sample holder is disposed within one of the first chamber interior and the second chamber interior. A first fluid may be disposed within the first chamber interior, and a second different fluid may be disposed within the second chamber interior.

Abstract: A structure is used wherein a clip holding component of a harness protector can be formed as a separate item from a clip. A clip holding component of a type that is moveable in the X axis direction is used for a least one of the clip holding components of the harness protector. This clip holding component that is moveable in the X axis direction has a widened slit to accommodate misalignment in the X axis direction b. The clip holding component may be combined with other stationary type clip holding components or clip holding components which are moveable in the Y axis direction.

Abstract: Disclosed herein is a controller for controlling ablation of a target tissue of a patient with an ablation device comprising at least one electrode and at least one sensor. The controller typically comprises a storage medium and one or more computing devices operably coupled with the storage medium. The storage medium can comprise patient image data and the one or more computing devices are configured to direct power to the at least one electrode.

Abstract: Some embodiments are directed to a hook assembly for use with a vehicle having a vehicle interior, a vehicle door having a window bordered by a lining, and a sunshade assembly configured to cover the window, the sunshade assembly having a support member by which the sunshade assembly can be secured to the lining to cover the window. The hook assembly can include a grommet configured to be connected to the lining. The hook assembly can also include a hook member configured to be disposed adjacent and attached to the grommet such that the grommet is disposed between the hook member and the lining, the hook member including a hook extending therefrom, the hook being configured to engage the support member to secure the sunshade assembly to the lining to cover the window.

Abstract: The presently-disclosed subject matter includes a bracket that can be mounted to a surface, and that can protect openings and other water sensitive areas on the surface from water damage. Embodied brackets can comprise a mount that can be mounted to a surface, an extension that protrudes outwardly from the mount, and an attachment portion to which a water resistant material can be attached. In some embodiments the bracket is mounted to a wall above and/or near an opening or other water sensitive area, and the bracket and/or water sensitive material protect the opening or water sensitive area from water damage. In some implementations two or more brackets are attached to form a continuous bracket structure.

Abstract: A movable digital display includes pivotable left and right side brackets. Each of the brackets has a connector coupled to a first end of a rod. The connector pivotally attaches to a window frame. An orifice is positioned proximate a second end of the rod. Each of the brackets has a shaft with a first terminus and a second terminus. There is a fastener coupled to the first terminus of the shaft. The fastener is configured to pivotally attach to the digital display. There is an aperture proximate to the second terminus of the shaft. The aperture is complimentary to the orifice of the rod. Each of the brackets has a pivot pin extending through the orifice and the aperture, such that the rod and the shaft are coupled and such that the rod and the shaft are able to pivot relative to the pin.

Abstract: An anchor for lightning protection systems include a base and pad that extend over a sufficient area and a sufficient bearing length to hold in shear and in tension against the weight, shear force, and moment of cables, points, and other components of a lightning protection systems. The mounting anchor is non-penetrating, and adheres to a vertical surface almost immediately without requiring damage to structures, long term support over days waiting for cure, and works in overhang situations as well. An integrated clip may be constructed with the base from sheet material. Adhesion of the base to a cover material on a wall or parapet may be promptly followed by snapping cable into clips formed monolithically with the base.

Abstract: A lighting fixture including alighting housing having a reflector member having that is attached to the bottom of the lighting housing, lights positioned beneath the reflector, first and second brackets positioned on the top surface the reflector member, wherein the reflector member is hingedly mounted to the lighting housing using a first fastener extending through the first bracket, and using a second fastener extending through the second bracket of the reflector member.

Abstract: Embodiments, including apparatuses, systems and methods, for attaching autonomous seismic nodes to a deployment cable. In an embodiment, an apparatus includes a seismic node having a direct attachment mechanism configured to directly attach the seismic node to a deployment line, the direct attachment mechanism being configurable between an open and/or unlocked position and a closed and/or locked position to release and retain the deployment line.

Abstract: A headlamp assembly typically includes a high beam reflector and a low beam reflector. A linkage synchronizes the aim of a high beam reflector with a low beam reflector while also providing damping for both reflectors to stop them from visibly shaking or fluttering the light beam under vibration in actual use. The damping linkage could also be employed in a single reflector environment.

Abstract: A bracket is used for supporting at least one solar module each of which has a frame. The bracket includes a fastener, a holder and a fixing element. The fastener includes a top portion and extended portions connected vertically to both sides of the top portion. The top portion has a concave segment at its central position. The holder includes a supporting portion for resisting the bracket. The holder has first through holes, in which the extended portions pass through a plurality of second through holes of the frame and the first through holes of the holder for sandwiching the bracket between the fastener and the holder. The fixing element is used for fixing the fastener on the holder.

Abstract: A mobile device accessory includes an integrated non-volatile display (NVD) that uses substantially no power in order to maintain an image displayed thereon. A mobile device connected to the accessory controls the NVD by providing both image data for display on the NVD and power for powering of the NVD. In response to receiving a user-input command to display an image on the NVD, the mobile device transiently provides power to the accessory. While power is provided, the mobile device transmits the data for the image to the accessory. Once the image is displayed on the NVD, the mobile device substantially withdraws power provided to the accessory. Upon receiving a user-input command to update an image on the NVD, the mobile device again transiently provides power to the accessory for a limited period of time sufficient to provide and display the updated image on the NVD.

Abstract: An arrangement has guides that define passageways for left and right edges of a card, and a tab located in a path of a connector at a front edge of the card. The tab is elastically deformable out of the path by movement of the connector, as the card is inserted into the arrangement. The tab returns to a space behind the connector when the connector moves past a highest point on the tab. The highest point is located between two surfaces of the tab: a ramp-up surface and a ramp-down surface. During movement along the path, the connector slides on the ramp-up surface to elastically deform the tab out of the path, and on further movement the ramp-down surface pushes on the connector as the connector mates with another external connector. Thereafter, presence of the tab keeps the two connectors mated, until the module is removed from the arrangement.

Abstract: A mounting device for securing an electronic component includes a support base, a fixing board and a latching member. The support base includes a first track defining a first sliding direction and a second track defining a second sliding direction that intersects with the first sliding direction. The fixing board is connected to the electronic component and capable of sliding along the first track with the electronic component. The latching member is capable of sliding along the second track and includes an elastic element. The elastic element is configured to position the latching member at a desired position with respect to the support base and to provide a resilient force to the latching member, allowing the latching member to push the fixing board to cause the fixing board to abut against the support base, thereby limiting a movement of the fixing board along the first track.

Abstract: A support assembly connected with a stud for securing and guiding conduit and/or cable is provided. The support assembly includes, but is not limited to, a securing arm for securing and guiding the conduit and/or cable and an engaging tab coupled with an end of the securing arm. The engaging tab includes a first engagement member facing a second engagement member, a side engagement member connecting the first and second engagement members together, and a first compressible member extending in a first direction D1 either from the first engagement member towards the second engagement member or from the second engagement member towards the first engagement member. The first compressible member is compressible in a second direction D2 opposite that of the first direction D1.

Abstract: A battery module includes a plurality of battery cells, a plurality of holders, and a thermistor. Each of at least one of holders includes a thermistor holder. The thermistor supporter includes a pair of thermistor receiving segments, a pair of thermistor engagement segments, and a thermistor cover portion. The sensor casing includes a bias portion and an elastic claw portion. The bias portion is provided to press the sensor against one of the top surface and the bottom surface provided in the at least one of the battery cells by utilizing a reaction force generated by pressing the thermistor cover portion. The elastic claw portion has a width larger than the distance between the pair of thermistor receiving segments when the elastic claw portion is in a free state.

Abstract: At least one embodiment of the invention describes roofing batten snap spacers that elevate a roofing batten from a roof. In one or more embodiments, the roofing batten snap spacer includes a base element having a first vertical height and having a first side, an opposing side, a first end and an opposing end. According to at least one embodiment, the base element couples with a roofing batten and elevates the roofing batten. The roofing batten may comprise an elongated portion of material having a top surface, a bottom surface and a portion therebetween of a second vertical height, such that the material couples with a roofing material. In at least one embodiment, the base element elevates the roofing batten from a roof by the first vertical height. This enables the roofing material to be offset from the roof by a sum of the first and second vertical heights.

Abstract: A mounting apparatus for a sliding drawer mechanism is disclosed. The mounting apparatus includes a bracket, a latching member and a mounting piece. The bracket includes a side plate, and the side plate defines a limiting hole. The latching member is secured to the sliding drawer mechanism and includes an elastic latching portion. The mounting piece extends from the sliding drawer mechanism, and a mounting post protrudes from the mounting piece. The mounting post is received in the limiting hole to prevent the sliding drawer mechanism from sliding along a direction substantially parallel to the side plate, and the elastic latching portion and the mounting piece are located on two opposite sides of the side plate, to prevent the sliding drawer mechanism from sliding along a direction substantially perpendicular to the side plate.

Abstract: A rack-mounted console module includes a lower unit slideably mounted on a rail and an upper unit pivotally coupled to the lower unit. A locking mechanism includes a first part moveably disposed in the lower unit and a second part fixedly disposed on the rail. When the upper unit is closed and the lower unit slides along the rail to a target position, the first part of the locking mechanism changes from a released state to a locked state where it engages the second part of the locking mechanism to lock the lower unit. When the upper unit is opened, the first part changes from the locked state to a ready-to-released state. When the upper unit is subsequently closed, the first part changes from the ready-to-released state to a released state where it disengages from the second part, and the console module can be slid back into the rack.

Abstract: A concrete anchor for securing the lanyard of a workman's harness to a fixed position on a concrete surface includes a cylindrical housing having an outer wall with openings therein and a rod that extends above the housing to which a harness can be attached. Hard metal balls within the housing are associated with each opening and are dimensioned so that a portion of each ball can pass through each opening but the entire ball can not pass therethrough. A pair of cones within the housing move the balls radially outwardly as the cones are moved upwardly by the rod which is spring biased upwardly. A visual marker carried by the rod normally lies within the housing but is visible from outside of the housing if said rod has moved up by a predetermined amount. This gives an indication that the anchor has been used.

Abstract: An electrical box support assembly for mounting an electrical box between a pair of studs is provided. The electrical box support assembly includes, but is not limited to, a pair of telescoping overlapping struts and a pair of engaging tabs detachably coupled with each end of the pair of telescoping overlapping struts. Each strut has a face to which the electrical box may be secured. Each of the pair of engaging tabs includes a first engagement member for primarily engaging a closed face of one of the studs and a side engagement member connected generally perpendicular with the first engagement member. Each end of the pair of telescoping overlapping struts may be detachably coupled at one of two positions on each engaging tab in order to accommodate electrical boxes of varying depths.

Abstract: A fixing device for use with at least one expansion card in a computer chassis includes a positioning member and a fixing member. One side of the positioning member defines at least one first slot. The fixing member includes a fixing portion and a rotatable portion rotatablely connected to the fixing portion. The fixing portion defines at least one second slot corresponding to the at least one first slot. When the rotatable portion is able to rotate to a position where the at least one first slot face to the at least one second slot, allowing opposite sides of the free end of the at least one expansion card.

Abstract: Embodiments of a spring clip retention system are provided for securing a generally cylindrical component, as are embodiments of a guided munition including a spring clip retention system. In one embodiment, the spring clip retention system includes a captive feature and a spring clip. The captive feature includes opposing ledges and a channel formed beneath and partially enclosed by the opposing ledges. The spring clip includes opposing retainer arms and a base portion, which extends between the opposing retainer arms and which is received within the channel. The spring clip deflects outward when the component is inserted between the opposing retainer arms. The base portion abuts the undersides of the opposing ledges when the spring clip is deflected outward by insertion of the component to prevent disengagement of the base portion from the captive feature in a direction substantially normal to the longitudinal axis of the channel.

Abstract: A suspension apparatus includes a casing, a fixing member received in the casing, and a hanging portion extending from a first end of the casing. The fixing member includes two latches. First ends of the latches are rotatably connected to each other. Each latch includes a tab extending from a second end of the latch and extending through a second end of the casing, and an operation portion extending from the latch and extending through one of opposite sides of the casing. The latches to rotate relative to each other to drive the tabs of the latches closer or farther apart.

Abstract: A method of providing a shelf-attached tag holder defining an upwardly-open slot for receiving a main price tag and further having a slip-fit top attachment system; and placing a main price tag into the upwardly-open slot in a visible position. The method also includes temporarily attaching a supplemental information tag by sliding a top edge of the supplemental information tag into the downwardly-open front throat with a folded attachment flange providing positive engagement with the slip-fit top attachment system, with the supplemental information tag being positioned in front of the main price tag. The method also includes, after the step of temporarily attaching, a step of pulling the supplemental information price tag downwardly with sufficient force to overcome the positive engagement of the folded attachment flange to thus remove the supplemental information tag without disturbing the main price tag.

Abstract: This invention relates to a retaining mechanism adapted for securing a data storage device having sides formed with a plurality of mounting holes. The retaining mechanism includes a securing structure and a retainer. The securing structure includes a wall body, an accommodating hole formed through the wall body, and a pair of elastic arms extending from the wall body into the accommodating hole. Each elastic arm has a fixed end connected to the corresponding inner surface of the accommodating hole and a free end extending inclined and downwardly toward a bottom of the accommodating hole. The retainer has one end engaging one of the mounting holes in the data storage device and the other end pressed by the elastic arms, and is secured in the securing structure. The retaining mechanism can be used as a snap-in bracket or a frame for quick replacement of the data storage device.

Abstract: A keyboard fixing structure for fixing a keyboard in an opening of a housing is disclosed. The keyboard fixing structure includes an engaging portion, a first fixing portion, a first flexible connecting portion, a second fixing portion and a second flexible connecting portion. The engaging portion presses a first side of the keyboard in the opening. The first fixing portion is fixed on the housing, and the first flexible connecting portion is connected to the first fixing portion and the engaging portion. The second fixing portion is fixed on the housing, and the second flexible connecting portion is connected to the second fixing portion and the engaging portion. The first flexible connecting portion and the second flexible connecting portion cooperatively provide resilient force to the engaging portion in a first direction for driving the engaging portion to press the first side of the keyboard.

Abstract: A vehicle wash system having a plurality of vehicle treatment components with one of the plurality of vehicle treatment components including at least one support member. The at least one support member has an exterior surface. A shrinkable sleeve is sized to fit over the exterior surface of the at least one support member. The shrinkable sleeve is slid onto the at least one support member and located in a predetermined position around the exterior surface. Upon application of heat to the shrinkable sleeve, it shrinks and conforms to the shape of the exterior surface of the at least one support member such that it is fixedly attached to the exterior surface of the at least one support member in the predetermined position. The result is a protective covering for the support member that is durable and readily cleanable such that fluid and debris can be easily wiped off of the covering and corrosion of the support member is minimized.

Abstract: A fastening apparatus for fastening a heat sink having a base to a circuit board includes two fasteners, two nuts, and two springs. Each fastener includes a head, a threaded pole extending down from a bottom of the head, and two spaced latching arms extending down from a bottom end of the threaded pole, for extending through the base and the circuit board to engage with a bottom surface of the circuit board. The nuts are respectively placed around and are engaged with the threaded poles, and movable up and down relative to the threaded pole. The springs are respectively placed around the threaded poles between the base and the corresponding nuts.

Abstract: A supporting apparatus for an electronic device chassis includes a base, a supporting assembly fixed to the base to detachably mount the chassis, a guiding block, an operation member, and a latching member. The guiding block is slidably attached to the supporting assembly along a first direction. The latching member and the operation member are slidably attached to the guiding block along a second direction perpendicular to the first direction. A first protrusion with a first slope and a second protrusion with a second slope protrude from the guiding block. The operation member includes a first sliding block with a third slope abutting against the second slope. The latching member includes a second sliding block with a fourth slope abutting against the first slope. An inserting pin extends up from the guiding block, to engage in the chassis.