Abstract: A uniflow cyclone for a hand vacuum cleaner has a dirt chamber that is external to the cyclone chamber and vortex finder, which has a solid portion that is spaced from and faces a dirt outlet of the cyclone chamber and a porous section that is angularly spaced around the cyclone axis of rotation of the cyclone from the solid portion.

Abstract: A jack with a protecting structure of a pump piston and a method for using the same are provided. The jack includes a housing, a base located inside the housing, and the protecting structure. An oil cylinder and a pump body are installed on the base. A pump piston is installed on the pump body. A spring is installed on the pump piston and the pump body. A stop protrusion is arranged on the pump piston. The protecting structure includes a dustproof sleeve and a wool felt. The dustproof sleeve is installed on the base and the pump piston. One end of the dustproof sleeve is detachably fixed on the base through a fastener. The other end of the dustproof sleeve is connected to an end portion of the pump piston. The shape of the dustproof sleeve is set into a wavy type.

Abstract: A fully parametric profile for improved tooling in a tool/fastener system is provided that details a profile from a single proved Wright number, and that improves the contact area across a full spectrum of industry standard tolerances, while preserving safe pockets for fastener corners, thereby providing for increased tool life. The tool profile is based on a central axis and a parametric set of coordinates for flats, transition points, and multiple radii. The profile mates selectively with a set of fasteners having a central axis and a plurality of flat bounding surfaces parallel to the fastener access wherein diametrically opposite pairs of surfaces are parallel to each other and the bounding surfaces intersect in adjacent pairs to form fastener corners.

Abstract: A tool basic module for use with at least one attachment device includes a drive unit, a main output shaft having a shaft receptacle for at least partially receiving a main input shaft of the attachment device, and a coupling device, which has a mechanical interface for mechanically connecting the attachment device to the main output shaft with respect to driving and an electrical interface for transferring electric power and/or an electric current. The mechanical interface is at least in particular substantially cylindrical and has a plurality of interlocking connection elements, which in particular are uniformly arranged on an outer periphery of the mechanical interface and are provided for torque support of the attachment device.

Abstract: Exemplary embodiments are disclosed of backup tools. In an exemplary embodiment, a backup tool generally includes a socket configured for receiving a nut of a flanged connection; a release nut; and an arm extending generally between the socket and the release nut. The arm defines a reaction surface configured to abut against at least a portion of the flanged connection for holding the nut against rotation when a bolt or another nut on a stud is being rotated relative to the nut within the socket of the backup tool, to thereby tighten the flanged connection.

Abstract: A dust collector has a well-balanced weight. The dust collector includes a body housing, a motor located inside the body housing, a fan rotatable by the motor, and a battery mount located inside the body housing and frontward from the motor.

Abstract: A cleaning machine may include: a first brush comprising a first brush shaft extending in a left-right direction and a first brush body held by the first brush shaft; a second brush comprising a second brush shaft extending in the left-right direction and a second brush body held on the second brush shaft; a brush supporting member supporting each of the first brush and the second brush such that the first brush and the second brush are rotatable; a body supporting the brush supporting member such that the brush supporting member is pivotable; and a pivot mechanism configured to pivot the brush supporting member with respect to the body. At least the first brush may move with respect to the body in an up-down direction when the brush supporting member pivots with respect to the body.

Abstract: A multi-cyclone dust collecting device according to the present disclosure comprises: a primary cyclone formed to primarily separate contaminants from introduced contaminant-containing air; and a plurality of second cyclones which are installed in the primary cyclone so as to separate fine dust from air discharged from the primary cyclone, and each of which has a plurality of introduction ports and one discharge port, wherein the plurality of introduction ports arranged on each of the plurality of secondary cyclones protrude outward from a body of each of the plurality of secondary cyclones and are formed in tangential directions to the outer circumferential surface of the each of the plurality of secondary cyclones.

Abstract: A driving shank assembly includes a tube, a drive head, a connector, two quick release nuts, and two fastening caps. The tube has two mounting portions each provided with a mounting recess for mounting the drive head and the connector respectively. The two quick release nuts are locked onto the two mounting portions of the tube respectively. The two fastening caps are locked onto the two quick release nuts respectively. Each of the two fastening caps has interior provided with an inner stepped edge. The drive head is provided with a stepped positioning edge abutting the inner stepped edge of one of the two fastening caps. The connector is provided with a stepped positioning edge abutting the inner stepped edge of the other one of the two fastening caps.

Abstract: The disclosure relates to the technical field of deburring in machining, in particular to a flexible automatic deburring device, comprising a main body support, a lifting assembly, a rotary burr brushing assembly and positioning and clamping assemblies. The lifting assembly can move up and down to adapt to inner cavities of workpieces with different depths, springs are arranged on the bottom surfaces of brush holders, so that brushes can float up and down to adapt to hubs with different spoke inner cavity shapes, and it is guaranteed that the brushes make contact with spoke inner cavities all the time; in this way, hubs with the same size but different shapes can use the same brush mechanism, it is unnecessary to prepare brushes suitable for all wheel types, thus greatly reducing the workload of replacing deburring brushes, saving the storage space in a workshop and increasing the burr brushing flexibility.

Abstract: An electric device as a first or system component for a system which includes a first system component including at least one of a machine tool and a vacuum cleaner and, a second system component including an electric energy storage module to provide electric energy for the first system component. The system components have device interfaces compatible with one another for detachable fastening to one another and for the transmission of electric energy from the energy storage module to the machine tool or the vacuum cleaner. The electric device has a communication interface for a wireless control connection to or from a vacuum cleaner to actuate the vacuum cleaner. The device interfaces are electrically or mechanically separated from one another in a separation status and are electrically or mechanically connected to one another in an operating status.

Abstract: A torque wrench has a lock device, which includes a locking sleeve, a restoring elastic member, a clamping member, a locking hole, a locking member, and a positioning assembly. The locking sleeve is provided with an accommodating recess, an abutting portion, and a positioning recess. When the lock device is in a lock position, the locking member is pushed by the abutting portion and pressed against a hollow shank to restrict a handle from rotating relative to the hollow shank. When the lock device is in an unlock position, the locking member is detached from the abutting portion, so that the handle is rotatable relative to the hollow shank.

Abstract: A sawhorse support attachment device for attaching supports for construction use includes a stand unit. The stand unit comprises a pair of bases, a plurality of stands, and a pair of chains. Each of the bases has a hollow interior that defines a space for an insert to be nested within. A pair of stands is attached to each of the bases at an angle to create a sawhorse assembly when in an open position. A pair of chains connects each of the pair of stands to each other. The chains provide supplemental stability to the stand unit when attaching elements. A support has a bracket with a pair of inserts. The pair of inserts is nested into the hollow interior of the pair of bases when attaching to the stand unit. A platform having the bracket and pair of inserts can attach to the stand unit.

Abstract: A floor cleaner including a including a body, a cleaning head pivotally coupled to the body, and a liquid distribution system. The cleaning head includes a first and a second cleaning roller for contacting a surface to be cleaned.

Abstract: A toothbrush having a detachable head portion is provided. The toothbrush includes a handle portion, a neck portion, and a head portion, and the head portion includes a first head portion and second head portion. The second head portion is detachable from the first head portion. The toothbrush further includes a button portion and an attachment/release mechanism. The button portion is actuatable to actuate the attachment/release mechanism to facilitate detachment of the second head portion from the first head portion.

Abstract: A vacuum cleaner charging dock comprising a base and a bracket is provided. The bracket is arranged on one side of the base and is provided with a charging socket for charging a vacuum cleaner, while a positioning slot is arranged on another side of the base, the positioning slot is used for containing a floor brush of the vacuum cleaner, the positioning slot is provided with a plurality of convex teeth, which are used for rubbing with a rolling brush on the floor brush. The vacuum cleaner charging dock is provided with convex teeth, and the rolling brush of floor brush has deformation contact with the convex teeth. When the rolling brush starts to rotate, the convex teeth are easy to perform frictional rotation. Then dust and sewage on the rolling brush are shaken off into a positioning slot to complete the cleaning to the rolling brush, which is convenient and efficient.

Abstract: A backerplate for a portable drywall sander hub assembly includes a mounting portion and a backerplate body. The mounting portion includes a threaded bore adapted to couple the backerplate to a sander hub. The backerplate body is connected to the mounting portion. The backerplate body forms a plurality of apertures therein positioned radially between an outer circumference of the backerplate body and the mounting portion. The plurality of apertures are adapted for dust to pass therethrough during operation of a drywall sander with the backerplate mounted thereto.

Abstract: A cleaning apparatus for a cleaner robot is provided and includes a main body. An accommodation cavity is formed inside the main body. The cleaning apparatus further includes a water spraying device and a sweeping roller, the water spraying device is disposed in the accommodation cavity and detachably connected with the accommodation cavity, and the sweeping roller is disposed in the accommodation cavity and detachably connected with the accommodation cavity. A water squeezing rod is arranged between the sweeping roller and the accommodation cavity. The main body is further disposed with a sewage recovery device detachably connected therewith. The sewage recovery device includes a sewage sink disposed at an inner side of the sweeping roller, and the sewage sink abuts against the inner side. The main body is further disposed with a driving device for driving the sweeping roller to rotate.

Abstract: An autonomous floor cleaning system includes an interlock for physically interlocking an autonomous floor cleaner with a docking station. The interlock selectively engages when the robot is docked at the docking station, and can automatically engage as when a predefined locking criterion is met. The interlock can remain engaged until a predefined unlocking criterion is met. Methods for docking an autonomous floor cleaner with a docking station are disclosed.

Abstract: A hand tool for driving a fastener is provided. The hand tool includes gearing that interconnects a splined socket to a rotatable or trigger actuator and increases a rotational speed of the splined socket relative to the actuator. The hand tool may include a power tool receiver 38 or an independent motor to drive rotation of the splined socket to advance or retract a fastener from a threaded shaft. By increasing the speed and conserving rotational inertia, the hand tool reduces the time to secure a fastener on a threaded shaft. A rotatable nut is provided. The rotatable nut can slideably orient along a first axis and threadedly orient along a second axis to fasten to an adjacent surface.