Abstract: An electronic trigger rotary latch includes a trigger cutout, a controller in electrical communication with a plug receiver. Springs are engaged to the latch and trigger pawls. A gear motor having an actuator engages a surface of the trigger pawl. A handle includes a striker bolt and an electrical plug. In an unlatched configuration the striker bolt is separated from the latch pawl, an electrical circuit is open, the latch pawl spring has reduced compression, the trigger pawl spring has increased compression, and the trigger tip is engaged to a latch tab. The actuator has moved the lower leg in the trigger cutout. In the latched configuration, the striker bolt is held by the latch pawl, an electrical circuit is closed, the trigger tip is engaged to the latch shoulder, and the trigger leg has been moved in the trigger cutout in an opposite direction.

Abstract: A motor vehicle lock has a pawl and a catch that may be moved into an open position, a preliminary latching position and a main latching position. In one latching position, that catch is or may be brought into holding engagement with a lock striker. During a cinching routine, the catch is moved into its main latching position by a cinching drive. An overload clutch with two clutch elements is provided in the drive train between the cinching drive and the catch. The clutch elements are in engagement with each other for the transmission of cinching forces. The engagement is load dependent in a beginning section of the cinching routine, such that the engagement, and thereby the overload clutch, is disconnected in reaction to exceeding a predefined limit load in the drive train. The engagement is load independent in the remaining, subsequent section of the cinching routine.

Abstract: In various embodiments, the present disclosure provides an door locking assembly splice including an extension tube having opposing top and bottom ends, a lock rod connection assembly connected to the top end of the extension tube, a handle connection assembly connected to the extension tube between the top end and the bottom end of the extension tube, and a cam assembly connected to the bottom end of the extension tube, that enables a damaged door rod locking assembly to be easily, quickly, and efficiently repaired.

Abstract: A door latch for a motor vehicle compartment includes a latch pawl having a locked position and an unlocked position, the locked position preventing access to the compartment, the unlocked position providing access to the compartment, and an actuator that rotates about a first pivot point. The actuator selectively engages with the latch pawl to move the latch pawl from the locked position to the unlocked position.

Abstract: A compression latch includes a cylindrical housing (1). A locking shaft (2) is rotatably and axially movable in the housing. The locking shaft includes an axial free end (14) that engages a locking element (12). A cylindrical sleeve (3) engages an axial end of the locking shaft opposed of the free end. The sleeve includes an axially tapered annular sleeve slot (19) in which a shaft engagement pin (7) is engaged to cause axial movement of the locking shaft with rotational movement sleeve until the pin engages a slot end. After pin engagement with the slot end, further rotation of the sleeve causes rotation of the locking shaft. A cylindrical securing element (4) is rotatably engaged with and is axially movable relative to the sleeve. The securing element includes a circumferentially extending guiding recess (17) and a transversely extending latching recess (18).

Abstract: Latch mechanisms adapted to prevent unauthorized displacement of a latch bolt from an extended, locked position to a retracted, unlocked position. The latch mechanisms prevent the failure of a latch bolt of one latch mechanism to return to an extended lock position from interfering with the ability of a latch bolt of an inter-related latch mechanism from being able to return to an extended, locked position. Further embodiments provide a mounting bracket mounted to a door to allow the associated latch mechanism to be indirectly secured to the door. Additionally, the mounting bracket may have a plurality of mounting orifices that allow the mounting bracket to be used with a wide range of latch mechanisms, as well as provide adjustable attachment of the latch mechanism to the mounting bracket.

Abstract: A retainer housing, in particular for a door check (30), includes a first housing part (2) with a cavity (3) for receiving a brake body (50) and a spring system (40) of a door check (30). The first housing part (2) has a first end (2b) and a second end (2c), and a closing piece (104) which is situated on one of the first end (2b) and second end (2c) of the housing part. The closing piece (104) has an upper face (104a) and a lower face (104b). Multiple elevations (6) are arranged on the lower face (4b; 104b) of the closing piece (4; 104), concentrically around a centre point of the lower face (4b; 104b). The elevations (6) have a stop face (7) for a spring system (40) of a door check (30).

Abstract: A tool box includes a first casing, a second casing, at least one fastening member, and at least one first elastic member. The first casing has at least one first receiving slot which has two first restriction portions. The second casing has at least one second receiving slot, a second restriction portion, and a first locking portion. The at least one fastening member has a third restriction portion, a second locking portion, and two fourth restriction portions. The at least one first elastic member is biased between the at least one fastening member and the at least one first receiving slot, and the at least one fastening member is pushed by the at least one first elastic member, such that second locking portion is locked onto the first locking portion to interlock the first casing and the second casing.

Abstract: A dual-shaft hinge with alternative rotation includes: a pivotal base, and having an axial swinging member and a radial moving member; a first core shaft, having a first shaft rod, a first guiding slot and a first latching slot, and the first core shaft is formed in an unlocked status when the first latching slot is engaged with the radial moving member; and a second core shaft, having a second shaft rod, a second guiding slot and at least one second latching slot; the second core shaft is formed in a locked status when the at least one second latching slot is engaged with the radial moving member, and the first core shaft is in the unlocked status, thereby enabling the first core shaft and the second core shaft to alternatively rotate.

Abstract: A gate hinge for a preferably wooden post which includes an L-shaped rod threaded on one leg with a metal strap rigidly connected to the threaded leg at about one and one half inches from the elbow of the rod on the threaded leg. The metal strap extends six or so inches form each side of the L-shaped rod with two or more holes near each end of the strap. The L-shaped rod is threaded into the post until the metal strap contacts the post. Then each leg of the metal bracket is bent around the post and screws or lag bolts are threaded through the holes and into the post to help secure the hinge to the post and to provide added support for the gate.

Abstract: A holding and opening mechanism for a pivoting element which is mounted to be pivotable relative to a supporting element about a first axle via a joint, with a pivoting arm acting between the pivoting element and the supporting element is provided. The pivoting arm is pivotally mounted about a second axle wherein the free end of the pivoting arm acts on a control surface of a guide element. A torsion spring is provided which acts on the pivoting arm in the direction around the second axle, a fixed part and a part pivotable relative thereto likewise provided, with the one part including the guide element and the other part including the pivoting arm.

Abstract: The invention relates to a device for pivotably holding a wing flap. The device comprises a flat four-bar linkage comprising two pivotably mounted pivoting arms and two pull arms fastened in parallel in an articulated manner to the pivoting arms, a fastening element for applying the wing flap being applied to the pull arms. The invention further comprises elastic means for damping the pivoting movement, which engage with the four-bar linkage, and a damper device for damping the pivoting movement in the region of two end positions, with a linear pressure damper and a first and a second transmission element. The pressure damper cooperates, on a first side of the pressure damper, via the first transmission element, with a first of the two pivoting arms in the region of a first of the two end positions. Furthermore, the pressure damper cooperates, on a second side of the pressure damper, via the second transmission element, with a second of the two pivoting arms in the region of a second of the two end positions.

Abstract: The system comprises a lever (2) that is rotatable about a point fixed to the vehicle and articulately joined to the upper edge (6) of the leaf (1); a horizontal guide (3) through which a carriage (4) slides; push-pull means (10,11) that articulately link the upper edge (6) to the carriage (4); and actuation means (12) simultaneously linked to the lever (2) and the carriage (4), which are adapted to distribute their action on the lever (2) and the carriage (4) depending on the force to overcome in order to open and close the leaf (1), such that their action is automatically distributed on the lever (2) when greater power is required to move the carriage (4), this is essentially during the initial opening operation from the end closing position, and during the closing and locking operation from an imminent closing position.

Abstract: An automatic door system for a vehicle may comprise a hinged door in connection with the vehicle configured to selectively enclose a continuous opening formed between a first and a second pillar of the vehicle, wherein the sliding door and the hinged door are configured to enclose the continuous opening without an intermediate support pillar. The system may also comprise the hinged door in a hinged position and controlled by a first power actuator. The system may also comprise the sliding door in connection with the vehicle configured to selectively enclose the continuous opening, wherein a second power actuator controls a sliding position of the sliding door. The system may further comprise proximity sensors and interference sensors to detect interfering obstructions, objects, and/or persons located within the interference zone.

Abstract: A method for manufacturing a pillar supply sheet is a method for manufacturing a pillar supply sheet including a plurality of pillars, a carrier sheet, and an adhesion layer between each of the pillars and the carrier sheet, the method including a pillar forming step. The pillar forming step is a step of forming the plurality of pillars by subjecting the base member to an etching process or a laser irradiation process and removing an unnecessary portion from the base member after the process.

Abstract: A safety gate has a first post assembly, a spinning mechanism, a cover body, and a positioning mechanism. The spinning mechanism is rotatably mounted in the first post assembly. The cover body has an edge mounted in the spinning mechanism. The gate body is wound around and is pulled out from the spinning mechanism to spin the spinning mechanism. The positioning mechanism has a knob and a positioning mount. The positioning mount is moved upwardly or downwardly relative to the spinning mechanism to selectively disengage from and engage with the spinning mechanism. The spinning mechanism is prevented from spinning while being engaged with the positioning mount.

Abstract: A window covering apparatus is disclosed, along with a method of using the same. The apparatus may include an upper board component and a lower board component, which are releasably held by central mounts. The upper board and lower board components can be arranged in a fully open shutter state, a half open shutter state, or a fully closed shutter state. The central mounts are positioned near flush to one or more outside or surrounding window surfaces in order to block light transmission. In one embodiment, the upper board and/or the lower board component may incorporate decorative elements and a gapless seam between the upper board and lower board components.

Abstract: A retrofitted window is disclosed which includes a substantially transparent aerogel film laminated on a glass windowpane, the aerogel film being embedded with randomly dispersed nanoparticles of vanadium dioxide (VO2) core and silicon dioxide (SiO2) shell, wherein the vanadium dioxide (VO2) core transitions between an insulator phase and a metal phase at a predetermined phase-transition temperature, and a volume fraction of the nanoparticles in the aerogel film is approximately between 0.001% and 0.05%.

Abstract: A screen assembly for a window includes a pair of parallel and spaced apart side rails locatable against respective sides of a window opening, and a head assembly including a roller upon which is wound a screen. The head assembly extends between the side rails and is adapted to be mounted on upper ends of the side rails to be supported thereon against and/or adjacent to an upper side of the window opening. Each side rail is linearly extendable whereby the upper and lower ends of the side rails frictionally engage upper and lower faces of a window opening to secure the side rails, and the head assembly mounted thereon, in place within the window opening.

Abstract: A screen device comprising: a screen roller (1), having a screen (2), which can be rolled up and unrolled hereon and which on at least one lateral side is provided with a thickening (6), a motor (7) for driving the screen roller (1), which motor, at that end of the screen roller (1) closest to the thickening (6), is disposed at least partially in the screen roller (1), wherein the motor (7) is fitted so far into the screen roller (1) that the thickening (6), in the rolled-up state of the screen (2), is positioned at least partially closer to the screen roller axis (A) than any point on that part of the motor (7) that is fitted in the screen roller (1), which point is situated the furthest from this screen roller axis (A).

Abstract: A ladder caddy assembly includes a box that has a sloped side that is positionable against a back set of legs of a folding ladder when the folding ladder is deployed. A mount is coupled to the box and the mount comprises a leg and a foot. The leg rests on a top step of the ladder for retaining the box on the ladder. The foot rests against a front set of legs of the ladder to inhibit the box from sliding away from the ladder. A pair of stops is each coupled to the box. Each of the stops abuts against the back legs of the ladder thereby inhibiting the box from sliding laterally off of the ladder.

Abstract: A method of drilling a wellbore that traverses a formation, the method comprising the steps of inserting a one-stage drilling tool into the wellbore, the one-stage drilling tool comprising a laser head configured to produce a drilling beam, a completion sheath configured to line the wellbore, and a centralizer configured to support the completion sheath within the wellbore, operating the laser head to produce the drilling beam, wherein the drilling beam comprises a laser, wherein the drilling beam has a divergent shape comprising a base at a distance from a front end of the laser head and an apex proximate to the front end of the laser head, wherein a diameter of the base of the drilling beam is greater than a diameter of the one-stage drilling tool, and drilling the formation with the drilling beam, wherein the laser of the drilling beam is operable to sublimate the formation.

Abstract: A drilling riser running system includes a water filling system and a pressure testing system that can fill and pressure test auxiliary lines of the riser system, while simultaneously running a riser joint.

Abstract: A cable head for attaching a wireline to a downhole tool includes an upper tubular member and a lower tubular member removably attached by a threaded connection. The cable head includes a pack-off assembly disposed within the upper tubular member. The pack-off assembly includes a deformable pack-off element comprising an outer sidewall for sealing against an inner sidewall of the upper tubular member, and an inner sidewall for sealing around the wireline. The pack-off assembly includes a biasing means axially in line with the deformable pack-off element. The pack-off element and the biasing means are axially compressed between an internal shoulder of the upper tubular member and the lower tubular member when the upper and lower tubular members are removably attached by the threaded connection, to enhance the seal of the tubular pack-off element with the inner sidewall of the upper tubular member, and with the wireline.

Abstract: A wet connector for a downhole tool string includes an insulating material body, a conductive core and an insulating piston. The insulating material body is provided with a first chamber, and the first chamber is filled with insulating oil. A conductive core chamber of the conductive core is communicated with the first chamber. The insulating piston is hermetically connected to a first opening through a first sealing lip. When a male connector abuts against the insulating piston and moves toward the bottom of the conductive core chamber, the male connector is in contact with and electrically connected to the conductive core chamber and causes oil to flow from the conductive core chamber so that the insulating oil in the first chamber is compressed and a pressure of the insulating oil in the first chamber is enabled to be greater than a pressure of well fluid outside the wet connector.

Abstract: A tubular for downhole use including a wall defining an inner bore; a fluidic passageway formed within the wall that is fluidically isolated from the inner bore; a portion of the wall being located between the inner bore and the fluid passageway and configured to maintain fluidic isolation between the inner bore and the fluid passageway until an opening is formed through the portion.

Abstract: A ground drilling device for cable-guided drilling comprising a drive for connecting and/or moving rod sections of a drill string along a drill string axis, wherein a cable reserve for receiving a cable with a length of at least two rod sections is provided and a contact device for electrical contacting of one end of the cable of the cable reserve is provided.

Abstract: A horizontal directional drilling system. The system has a pilot drill and an exit side drill, with a drill string extending between them. A backreamer is positioned between the drills to enlarge a borehole. The pilot drill pulls and rotates the backreamer. The exit side drill adds segments to the product pipe and pushes the product pipe into the enlarged borehole. The exit side drill is equipped with a rotational disconnect. The disconnect is engaged to allow torque transfer between a motor and a spindle when adding segments to the product pipe. The disconnect is disengaged to prevent torque transfer between the motor and the spindle when pushing the product pipe into the enlarged borehole.

Abstract: The present disclosure generally relates to a method for making up a tubular joint. The method includes rotating a first tubular relative to a second tubular to engage the first and second tubulars while measuring a torque between the first and second tubulars, calculating a set point of a relative rotational speed between the first and second tubulars using the measured torque, and using the calculated set point with a closed-loop controller to control the relative rotational speed between the first and second tubulars.

Abstract: A coiled tubing injector system includes a traction system for advancing coiled tubing through the injector and into or out of a well. The traction system includes a plurality of carriers (129) and gripper shoes (128) configured to repeatedly propagate through the injector along guides (114). The traction system also includes a position monitor (134) for monitoring the lateral position of the carrier, gripper shoe, or portion thereof as the carrier and gripper shoe propagates along the coiled tubing path.

Abstract: A method including circulating wellbore servicing fluid (WSF) downhole, passing the circulating WSF through a separator configured to separate solids therefrom, separating the plurality of particles into screened particles having a diameter greater than or equal to a mesh size and retained particles having a diameter less than the mesh size in a particulate-reduced WSF, adding a volume of second loss circulation material (LCM) composition including replenishment particles to particulate-reduced WSF to provide LCM-adjusted WSF, and introducing LCM-adjusted WSF downhole and circulating LCM-adjusted WSF. The WSF includes first LCM composition including plurality of particles having first cumulative particle size distribution (PSD). The LCM-adjusted WSF includes LCM-adjusted WSF LCMs. LCM-adjusted WSF LCMs include the retained and replenishment particles.

Abstract: Disclosed herein are aspects of a barrier coating layer of an expandable member wellbore tool for use in a wellbore. The barrier coating layer, in one aspect, covers at least a portion of the outer surface of the expandable member and has a composition formulated to react with a wellbore fluid and erode within a predetermined amount of time to allow a wellbore fluid to contact and hydrolyze the expandable member.

Abstract: A ball for sealing a plug in a well, the ball including a body; an actuation mechanism located in the body and configured to break the body into parts; and a ball sensor located on the body and configured to activate the actuation mechanism. The ball sensor is configured to measure a parameter that is generated by a tool sensor, which is located on a downhole tool.

Abstract: A tool for manipulating a tubular, such as casing or production tubing, in a downhole environment, includes a housing defining a chamber, the chamber having at least one outlet, a propellant source located within the chamber and an ignition mechanism for igniting the propellant source. Upon ignition of the propellant source, the propellant deflagrates, creating at least one stream of combustion products, the chamber directing the stream of combustion products through the/each outlet, towards the tubular to be manipulated, the/each stream of combustion products combining with at least one modifying agent to manipulate the tubular.

Abstract: An extendable wellbore tool may include a housing, a telescopic cylinder, and one or more hydraulic actuators. The telescopic cylinder may be disposed within the housing and may include two or more cylinders configured to extend and retract relative to each other. The one or more hydraulic actuators may be connected to the telescopic cylinder via a link arm, and may be configured to extend and retract the telescopic cylinder relative to the housing.

Abstract: The present disclosure is for an inverted diffuser usable in wellheads and other wellsite equipment. The inverted diffuser includes at least one first section having a first vertical inner surface, a first inclined inner surface relative to the first vertical inner surface, and one or more channels supporting one or more releasable fasteners between the at least one first section and a wall of a wellhead or of a wellsite equipment. At least one second section is press-fitted or fastened adjacent to the at least one first section. A method for application of the inverted diffuser in a wellhead and in other wellsite equipment is also disclosed, along with a method of manufacture of the inverted diffuser.

Abstract: Packer setting device, comprising a tubular (10) with a plug housing (14), said plug housing having an internal, through running boring (12) with an internal wall (12a), a breakable plug (16) seated in a load ring (22) axially movable within the boring (12) between a first position in where the plug (16) is with a distance to a breaking pin (18) and a second position in where the plug (16) is forced against the breaking pin (18), said load ring (22) is resting on a shear ring (20) with an annular shear lip (20a) to prevent axial movement in the first position until the shear lip (20a) is subjected to a force higher than a predetermined force, wherein the annular shear lip (20a) of the shear ring (20) extend radially inward in the boring (12), and the breaking pin (18) is resting on the shear ring (20), and said breaking pin (18) is accommodated in a pocket (28) on an outside of the load ring (22).

Abstract: A downhole apparatus comprises a casing string with a degradable plug therein to block flow therethrough. A flow barrier is positioned in the casing below the degradable plug and the degradable plug and the flow barrier defining a buoyancy chamber therebetween. An annular fluid reservoir holds a degrading fluid. The fluid reservoir has first and second rupture disks at upper and lower ends. Fluid from the annular fluid reservoir is communicated to the degradable plug after the first and second rupture disks rupture.

Abstract: An elastomer sleeve is applied to a wellbore tubular. The elastomer sleeve, which defines a circumference around longitudinal bore in a longitudinal direction, is brought in an elastically stretched condition by applying a stretching force to the elastomer sleeve. While the elastomer sleeve is kept in the elastically stretched condition, it is moved in the longitudinal direction over the wellbore tubular to a selected position on the wellbore tubular whereby the wellbore tubular extends through the bore. The elastomer sleeve is then snuggly fitted to an outside surface of the wellbore tubular by relaxing the elastically stretching force. The thus prepared wellbore tubular may be lowered into a wellbore in the Earth, and cement may be pumped on the outside of the wellbore tubular to form a cement sheath which fully surrounds the elastomer sleeve.

Abstract: A plug with a closure member including a body defining a flow bore and a closure member seat, a closure assembly connected to the body, the assembly including a closure member, and a hold open feature to hold the closure member in an open position, the hold open being configured to release the closure member upon a selected hydrodynamic force upon the closure member.

Abstract: Downhole well completion system for control of flow to or from multiple compartments (1a,1b,1c,1d) in a targeted subterranean reservoir (30), comprising a plurality of interval control valves (2) connected in series forming a downhole string (24), said interval control valves (2) are manipulated from surface via hydraulic control lines (4a, 4b, 4c) to open or close flowports (20) of each interval control valve (2), wherein each interval control valve (2) comprises a command module (5) connected to at least two of said hydraulic control lines (4a, 4b), a first hydraulic control line is a command line (4a) to deliver applied pressure to the command module (5), which translates hydraulic pressure signals into axial movement of an inner ratchet rod (6) that determines the position of an integral pilot valve (7), a second hydraulic control line is a common-open or common-close line (4b), to provide hydraulic power to either open or close the flowports (20) of each interval control valve (2), and the inner ratchet

Abstract: A subsurface safety valve for controlling fluid flow in a wellbore including a monitoring sub having a hydraulic connection port and defining a piston bore. The monitoring sub defining a hydraulic circuit extending between the hydraulic connection port and the piston bore. The monitoring sub comprising a sensing assembly incorporated in the hydraulic circuit that is operable to measure a degradation level of fluid in the hydraulic circuit. A flapper sub attached to the monitoring sub. A piston disposed in the piston bore of the monitoring sub. A flow tube positioned between the monitoring sub and the flapper attached to a downhole end of the monitoring sub and in contact with the flapper, the flow tube having a protrusion in contact with the piston. A return spring positioned in a cavity defined between the flow tube and the flapper sub, biasing the flow tube towards the monitoring sub.

Abstract: A system and method for opening and closing a barrier valve. The system may comprise a plurality of production tubing sections, a barrier valve, and an actuation module attached to the barrier valve. The method may comprise attaching an actuation module to one of one or more production tubing sections, disposing the actuation module, the barrier valve, and the one or more production tubing sections into an annulus, moving the mandrel with the first piston or the second piston, and moving a ball within the barrier valve to a closed position.

Abstract: A downhole tool includes a tubular having an outer surface and an inner surface defining a flowbore having a longitudinal axis, and a backpressure valve arranged in the flowbore. The backpressure valve includes a flapper valve including a first side and an opposing second side pivotally mounted to the inner surface to selectively extend across the flowbore, and a locking system mounted to the inner surface in the flowbore and selectively engageable with the flapper valve. The flapper valve is pivotable between a first position, wherein the flapper valve is free to pivot relative to the inner surface, and a second position, wherein the flapper valve is pivoted away from the flowbore and locked open by the locking system such that the first side forms part of the flowbore.

Abstract: A system and method for cleaning a wellbore. The system includes a production device and a cleaning assembly coupled to a bottom end of the production device. The production device and cleaning assembly are conveyed to a target location in the wellbore. The cleaning assembly is activated to clean the wellbore with the production device disposed at the target location.

Abstract: A system and a method for distributing electric power from a power source of electricity to power fracturing operations includes a plurality of circuit breakers, each circuit breaker including a first circuit breaker connector and a second circuit breaker connector, each of which outputs electric power to a corresponding transport at a first voltage level, a power source connector that receives electric power from a power source of electricity at the first voltage level, and a black start generator that generates electric power at a second voltage level and that supplies the generated electric power to start the power source of electricity.

Abstract: An offshore production system includes a surface vessel, a tubular tendon extending between the surface vessel and a lower connection system disposed at a seabed, the riser coupled to the surface vessel with an upper connection system, and an electrical cable extending through a central passage of the tubular tendon, wherein the upper connection system comprises a connector that physically supports the electrical cable.

Abstract: A method of creating a horizontal wellbore section comprises drilling the section in at least two stages. The method comprises drilling a first horizontal bore section. The first horizontal bore section is then provided with a first liner having a wall including initially-closed flow ports. The first liner isolates the wall of the first bore section. A second horizontal bore section is then drilled beyond the first horizontal bore section. The second horizontal bore section is provided with a second liner. Stimulation fluid is then directed into the first and second liners so that the stimulation fluid passes through the wall of the second liner to stimulate the second horizontal bore section. The flow ports in the wall of the first liner are then opened so that the stimulation fluid passes through the wall of the first liner to stimulate the first horizontal bore section.

Abstract: Downhole hanger systems are described. The downhole hanger systems include a first structure having an outer surface, a second structure having an inner surface, wherein the first structure is disposed within the second structure, and at least one rib set is arranged on the outer surface of the first structure and configured to be engageable with the inner surface of the second structure. The at least one rib set includes a first rib having a first rib height and a second rib having a second rib height that is less than the first rib height.

Abstract: A perforating device includes a release sub, a rotating segment, a first centralizer, a braking segment, a casing collar locator, a traction mechanism, a second centralizer, a flex joint, a power supply segment, a shock absorber, a perforator, and a tail segment, which are in threaded connection sequentially to each other. The first joint assembly includes a first joint, a guide key, a connecting sleeve including a locking groove, a second joint, and an outer pipe; the first joint of the first joint assembly is in threaded connection to the cable bridle, and the second joint is in threaded connection to the outer pipe. The connecting sleeve is disposed inside the outer pipe and is connected to the first joint through the guide key. The second joint assembly includes a plurality of locking claws, a third joint, and a head.