43 results about "Wrench" patented technology

A bi-directional ratchet wrench includes a handle with a head at a front side formed a housing trough to hinge a ratchet wheel which has ratchet teeth on the perimeter and a knob strut jutting from one end surface, a switch element located in a swivel space formed at the housing trough with a plurality of harness teeth formed respectively on the left and right sides of a front end to allow the harness teeth on one side to engage with the ratchet teeth, and having a rear side formed with two concave portions, and confined at a selected swivel angle on the left and right sides by two retaining troughs formed in the swivel space, a butting unit having an elastic element embedded in the head and a spherical butting member butting the concave portions, and a sealing lid to seal the ratchet wheel and switch element.

An auxiliary tool for a resistive current testing wire of a 750KV lightning arrester comprises a tong-shaped wire clamp, an insulated rod, a wire clamp bracket, an operating rod, and an extended rod which is obtained through modifying a common insulated rod. The wire clamp bracket is fixedly arranged at the upper part of the insulated rod and furthermore obliquely extends along the upper part of the insulated rod outwards. The operating rod is provided with an operating wrench, a test switch, a test wire pile and a grounding pile. The operating wrench is obliquely arranged at the middle part of the operating rod. The middle part of the operating wrench is provided with a fixing screw hole. The test switch is closely adjacent with the operating wrench. The test wire pile and the grounding pile are arranged at the end of the operating rod and are respectively used for connecting with the testing wire and the grounding wire of a resistive current tester. The tail end of the extended rod is provided with a connecting pipe for connecting with the operating rod and another extended rod. The auxiliary tool has an advantage of simple operation and can satisfy a requirement for resistive current testing wires of lightning arresters with different heights, so that a tester is protected from an induction voltage in a wiring process, thereby improving safety and accuracy in resistive current testing of the 750KV lightning arrester.

A theft-resistant tire mounting assembly for deterring theft of wheels includes a wheel rim. Recesses are positioned proximate to a center of the wheel rim. An opening is centrally positioned in each recess. Nuts are configured to threadedly couple to the stud bolts of a wheel hub. One nut comprises a locknut, which has a second end that comprises an exposed face. A perimeter of the exposed face is complementary to the opening, and a keyhole is positioned in the exposed face. The assembly includes an adapter that has a key end, which is complementary to the exposed face. The locknut is incompatible with the socket of the tire iron, and a wrench is not couplable to a locknut that is threaded to the stud bolt. The key end is positioned to couple to the exposed face such that torque from the tire iron is transferable to the locknut.

A combination includes a ratchet wrench and a driving member. The ratchet wrench includes a body and a ratchet wheel mounted in the body and rotatable relative to the body about a rotational axis. A driving hole extends through from a side through the other side of the body along the rotational axis and includes an inner periphery having a plurality of abutment surfaces. A corner is formed between each two adjacent abutment surfaces. At least one limiting portion protrudes from the inner periphery of the driving hole in a radial direction perpendicular to the rotational axis. The driving member includes at least one evasive portion and is coupled to the driving hole. The driving member is movable between a first coupling position and a second coupling position along the rotational axis when the at least one evasive portion is aligned with the at least one limiting portion.

Screw (100), surgical driver (400), kit and torque key (500) to fix a prosthesis (200) on a dental implant (300). The screw (100) has a pin comprising fixing means arranged to fix the screw (100) in the implant (300) in a detachable way; a head, to house the prosthesis (200). The head comprises a protruding area which is mostly spherical and has curved-concave meridional sunken areas (110) to receive a grip (410, 510) of a handling tool (400, 500) for the screw (100); with a latitude between ±80°, with respect to the equator (E) of the head. The surgical driver (400) has a work part comprising fastening means with a shape which combines with the shape of the head of the screw (100). The kit comprises the surgical driver (400), the screw (100) and a protective cap (450). The torque key (500) has a similar configuration to that of the surgical driver (400).

The invention relates to a fastening piece, in particularly a detachable anti-loosing and anti-theft bolt structure. The detachable anti-loosing and anti-theft bolt structure mainly comprises a bolt and a nut, and is characterized in that a threaded section of the bolt comprises an upper section and a lower section which are fabricated integrally; threads of the upper section and the lower section are same; the diameter of the upper section is smaller than that of the lower section to ensure that the threads of the upper section does not contact the threads of the nut; the threads of the upper section and the threads of the lower section are staggered for a half screw pitch to ensure that gear peaks and gear valleys of the threads of the upper section are opposite to gear peaks and gear valleys of the threads of the nut; a snap spring which is made of a shape memory alloy material is accommodated in a space which is formed by at least one circumferential gear valley; and the threads of the lower section of the bolt are matched with the threads of the nut. The detachable anti-loosing and anti-theft bolt structure can be screwed down by using a standard tool to realize a reliable self-locking function, and the nut cannot become loosed automatically, so that the detachable anti-loosing and anti-theft bolt structure has high anti-loosing and anti-theft function. When the detachable anti-loosing and anti-theft bolt structure is required to be disassembled, the nut is heated to ensure that the snap spring is separated from the nut, and then the bolt can be unscrewed by using a wrench, so that the conventional destructive disassembly is avoided, and waste is reduced.

A ratchet wrench includes a driving device having first and second sides spaced along a rotating axis. A compartment extends from the first side through the second side. A drive member is received in the compartment and includes an end for driving a tool. A ledge is formed on an inner periphery of an end of the compartment at the second side. A pressing rod extends into the drive member via the end of the compartment at the second side. The pressing rod is movable relative to the drive member along the rotating axis between a first position and a second position to control engagement with or detachment from the tool. A dustproof ring is mounted between the ledge and the pressing rod. The dustproof ring includes an outer side and an inner side. The outer side presses against an abutment portion of the ledge. The inner side presses against the pressing rod wherever the pressing rod is in the first position and the second position.

The invention discloses a square hole pulling clamp of an adjustable spanner, comprising a base plate, wherein a mounting cavity is arranged in the middle of the base plate; a mounting seat is arranged in the mounting cavity and is fixed on the base plate through a plurality of bolts; the base plate and the mounting seat are provided with mounting grooves matched with the adjustable spanner; and the mounting seat is respectively provided with a main pull rod and an auxiliary pull rod. The invention has the advantages of convenient clamping and fixing, can improve the processing precision, finish the operation of pulling a square hole by the adjustable spanner, solving the trouble of repeat cutter presetting and improve the processing efficiency.

A wrench is configured to engage a fastener for rotation. In one embodiment, the wrench comprises a base, a pair of jaws, a pair of threaded shafts, an adjusting ring, and/or a sleeve. The position of the pair of jaws along the base may be adjustable to accommodate fasteners of different sizes.

The invention discloses a multifunctional hardware wrench. The multifunctional hardware wrench comprises a first support plate, wherein a head is fixedly connected to the left side of the first support plate, a first through hole is formed in the right side of the front surface of the head, a first long hole is formed in the right side of the first support plate, a second support plate is arrangedin the first long hole, a first fixed block is fixedly connected to the left side of the second support plate, and a first groove which is matched with the first fixed block is formed in the left side of the front surface of the first support plate. According to the multifunctional hardware wrench, the first support plate is arranged, so that the effect of fixing the head and the second support plate is achieved; the first through hole is formed, so that the effect of removing bolts of different sizes is achieved; the first support plate and the second support plate are arranged, so that theeffect of increasing the wrench holding length of a user is achieved; a clamping block and a clamping groove are arranged and formed, so that the effect of fixing a connecting block is achieved; and ascrewdriver head is arranged, so that the effect of removing bolts and screws is achieved. The wrench has multiple functions and is convenient to use by the user.

The invention provides a quick screwing sleeve of a double-end stud. The quick screwing sleeve comprises an inner sleeve body (2) serving as an elastic chuck, and an outer sleeve body (3) sleeved outside the inner sleeve body (2) and serving as a locking sleeve. The outer side of the front end of the outer sleeve body (3) is in threaded connection with a nut (1), the outer side of the rear end of the outer sleeve body (3) is in threaded connection with a connection sleeve (5), and four Achimedean spirals are uniformly distributed in the radial section of the surface where the inner sleeve body (2) is contacted with the outer sleeve body (3). The quick screwing sleeve can be installed on a pneumatic (electric) wrench, the wrench is rotated, the double-end stud to be screwed can be screwed, then the double-end stud is driven to be screwed into a screw hole in a machine body, the stud is automatically locked when encountering resistance, and the larger the resistance is, the larger the locking force is, and the locking force in increased along with the resistance until the stud is screwed in the screw hole in the machine body. Then the wrench is reversely rotated, the stud can be released, reverse friction torque does not exist, and the stud can be easily screwed out.

The invention relates to a circular universal spanner. The circular universal spanner comprises a shell; the shell takes the shape of a cylinder with a closed top end; a storage power supply is fixed on the inner top surface of the shell; an on-off switch of the storage power supply is arranged at the top of the shell; a closed liquid storage cavity is formed below the storage power supply; a water replenishing hole and a drain hole are formed in the liquid storage cavity; the drain hole is formed in the lower bottom surface of the liquid storage cavity; an elastic film sealed with the shell is arranged at the lower part of the liquid storage cavity; the elastic film, the shell and the lower bottom surface of the liquid storage cavity surround a twisting cavity; a plastic material is filled in the twisting cavity; the plastic material is high in hardness during drying and low in hardness during wetting; and heating wires are arranged in the twisting cavity, and are electrically connected to the storage power supply. The circular universal spanner is novel in structure and stable and tight in engaging force, can easily and safely twist a valve, and effectively improves the working safety and stability.

An impact wrench includes a housing, a rotation motor, an output shaft, and an impact mechanism including an inertia drive member with an impact chamber, a drive socket coupling the drive member to the motor, and anvil formed integral with an output shaft and extending into the impact chamber, and a coupling member arranged to transfer kinetic energy from the drive member to the anvil, a lubricant provided in the impact chamber, and barrier forming cover element mounted on the drive member to seal off the impact chamber and prevent lubricant from being expelled from the impact chamber at rotation of the drive member.

The invention provides a swirler test fixture, which comprises a fixture flange (1), a pull rod (2) and a press block, wherein a first position of the fixture flange (1) along the edge is used for assembling a swirler (7); the pull rod (2) is pivoted to a second position of the fixture flange (1) along the edge; the second position is opposite to the first position; and the press block is arranged on the pull rod in a sliding way, and is operably pressed against a pressure stabilizing cylinder flange (51) of a pressure stabilizing cylinder (5). When the test fixture is used for testing the swirler, tools such as a spanner, a bolt and the like are not required to be used for fastening the fixture flange and the pressure stabilizing cylinder flange together, the pull rod is required to be rotated only, and an adjusting block is used for clamping the fixture flange and the pressure stabilizing cylinder flange. The operation is safe, time-saving and labor-saving; and the work efficiency is greatly improved.

This invention concerns a sofa which solves the problems of the prior art by providing a sofa that can easily be assembled or disassembled by the end consumer at home. The disassembled sofa can be stored in 3 flat boxes. Storage in the flat boxes not only helps the warehouse to store the sofa, but when the end user has purchased the sofa it is easier in such flat boxes to transport it to the location where it will be assembled. The way this invention accomplishes these results is as follows: The parts of the sofa can be broken down into three boxes. Chaise sections can be assembled by placing the seat back flat on the ground and placing the seat frame/arm upright on top of the seat back. A metal threaded rod is used to connect the seat frame and the seat back. A metal nut is used to secure the seat frame to the back using a wrench that comes provided in the package of the kit. The legs are then twisted onto the bottom of the seat frame.

The small vacuum filling device consists of three parts including filling valve, sealed pipe spanner and T valve pipe. The filling valve consists of mainly valve base body with thread and two groups of filled gas inlet holes, valve rod screwed to the valve base body, cylindrical sealing body connected to the valve rod, and anti-falling cap welded to the lower end of the valve base body. The sealed pipe spanner has inner thread in the lower wall for connection with the valve base body and front end welded to one connection pipe of the T valve pipe. The present invention may be welded directly onto small container for convenient filling.

The invention relates to a wrench. The wrench comprises a handle part and a head part which is at least arranged at one end of the handle part, wherein the handle part is in the shape of a long plate; the head part comprises a body and an opening part; the opening part is the same as half of an outer contour of a nut; the opening part is provided with two bent angles; a magnetic substance is arranged in the head part body; vertical grains extending in the length direction of the handle part are arranged on the side surface of the handle part; and the bent angles of the opening part are subjected to thermal treatment. The wrench has the advantages that: the magnetic material is arranged in the head part body of the wrench, so that at a position inconvenient for placing hands, the wrench can be placed on an inclined plane; friction between a palm and the wrench is increased by vertical grains in the wrench even the wrench is liable to slide during process and is inconvenient to hold when a worker wears gloves for operation in cold weather, so that the wrench is not liable to slide even the worker wears the gloves, thereby improving the processing efficiency; and hardness at bent parts of the opening part is relatively high, so that the service life of the wrench is longer.

The invention provides a nut dismounting tool. The nut dismounting tool comprises a base, an up-and-down part (200) capable of rising and falling relative to the base, and an electric wrench (300) arranged on the up-and-down part (200), wherein the electric wrench (300) comprises a wrench body (310) and a knob dismounting head (320) for dismounting a nut (400); the wrench body (310) is positioned and matched with the up-and-down part (200) in a direction of rotation of the knob dismounting head (320). The nut dismounting tool is capable of solving the problem of relatively low efficiency of dismounting the nut in a narrow space.

Systems, method, and apparatus for locking a movable component of a tool into an operationally static position. A locking mechanism embedded within an interior cavity of a tool is operationally connected to a squeeze handle via a linkage assembly. When the handle is squeezed, the linked assembly drives the locking mechanism toward the movable component. Corresponding gear racks on the locking element and movable element inhibit movement in both vectors, using a zero degree pressure angle to strongly inhibit movement in another factor, and using a non-zero degree pressure angle to less firmly inhibit movement in an opposing vector.

The invention relates to a grabber for an instrument in a well mouth blowout prevention pipe. The grabber comprises a grabbing base body and a connector. The grabbing base body and the connector are in threaded connection. The grabbing base body is provided with a fixing pin hole. A fixing pin is arranged in the fixing pin hole. A grabbing tongue is rotationally connected to the fixing pin. A torsion spring is arranged at the portion, corresponding to a groove of the grabbing tongue, of the fixing pin. A torsion spring stop key is arranged in the grabbing base body. One side of the torsion spring abuts against the torsion spring stop key, and the other side of the torsion spring abuts against the grabbing tongue. The grabbing tongue is provided with a tongue pull ring. The tongue pull ring is provided with a special hook spanner. A steel wire penetrates in the grabbing base body and the connector. The bottom end of the steel wire is connected with an instrument connector. The upper end of the instrument connector is provided with a grabbing clamping groove. When the blowout prevention device is used for measuring a well, after well instrument through the instrument is finished, the grabber is lifted to the blowout prevention pipe above a well mouth base to fix the instrument in time, the phenomenon that the instrument falls into the oil well again due to misoperation is avoided, safety production is ensured, and the production accident rate is lowered.

A manufacturing device includes a first hinge defining a first axis of rotation and having an arm connected thereto. A parallel link mechanism includes a second hinge connected to the arm and first and second links pivotably connecting the second hinge to an attachment such that the attachment is vertically movable relative to the second hinge. A nut runner is configured to rotatably drive a fastening tool about a third axis of rotation and is connected to the attachment. A first motor is provided on the first hinge and is configured to horizontally rotate the arm about the first axis of rotation. A second motor is provided on the second hinge and is configured to horizontally rotate the parallel link mechanism about a second axis of rotation that is parallel to the first and third axes of rotation.

The invention discloses a fault overhauling device for an automobile air conditioner. Which comprises a frame, one side of the inner wall of the frame is rotationally connected with a first shaft. Themiddle part of the first shaft is fixedly connected with a first air inlet fan; one side of the inner wall of the frame is rotationally connected with a second shaft; a second air inlet fan is fixedly connected to the middle of the second shaft, the second shaft is located over the first shaft, an air inlet pipe is arranged on the side, close to the first air inlet fan and the second air inlet fan, of the frame, a transparent observation column is fixedly connected to the top of the frame, and a propane storage bottle is arranged at the bottom of the frame. A user can conveniently take the equipment for use through the grip, the transparent observation column is arranged, the user can conveniently observe the color change of flames to judge whether refrigerant leakage exists near the equipment or not, the switch is controlled through the wrench, use is convenient, the structure is simple, the manual visual inspection time can be shortened, and the efficiency is improved.

The invention discloses a semi-dumbbell-shaped box spanner which comprises a holding rod and a driving end. The holding rod is in a rod shape. One end of the holding rod is provided with the driving end. The driving end is in a hollow multi-prismatic shape. Torx holes are formed in each side face of the multi-prismatic-shaped driving end. One end face of two end faces of the multi-prismatic-shaped driving end is connected with the holding rod, and a Torx hole is formed in the other end face of the driving end. The Torx holes are polygonal holes and penetrate through the driving end. The semi-dumbbell-shaped box spanner has the advantage of meeting requirements of different types of screws.

The invention relates to the field of hand tools, and discloses a multifunctional spanner, which comprises a handle, a spanner head, sleeve heads and sleeve openings. The sleeve heads comprise a big sleeve head and a small sleeve head; the sleeve openings comprise a big sleeve opening and a small sleeve opening; the spanner head is located on the top end of the handle; the sleeve heads are located on the tail end of the handle; the big sleeve head and the small sleeve head are respectively located on two sides of the tail end of the handle; the big sleeve opening and the small sleeve opening are correspondingly arranged on the big sleeve head and the small sleeve head; and the two sleeve openings are arranged on the sleeve heads in a concave way. The multifunctional spanner provided by the invention is simple in structure, reasonable in design, and high in practicability since docking parts of various parts are arranged on the spanner, and the working efficiency of working personnel is greatly improved.

The invention discloses a movable wrench double-face polishing clamp. The movable wrench double-face polishing clamp comprises a bottom plate and an overturning device arranged in the middle of the bottom plate, and the overturning device is provided with an overturning through hole. The movable wrench double-face polishing clamp further comprises a rotation rod, limiting steel plates and positioning devices, wherein the rotation rod penetrates the overturning through hole and through holes in the tail ends of handles of movable wrenches in an inserted manner, the limiting steel plates are symmetrically arranged at the inner end of the upper surface of the bottom plate with the overturning device as the center, and the positioning devices are arranged at the outer end of the upper surfaceof the bottom plate. The bottom plate is provided with two grooves for limiting the straight line where the movable wrenches are placed, a calibration rod penetrates through holes of the movable wrenches, all the movable wrenches are fixed to a clamp through the three-point positioning principle, simultaneous batched and accurate movable wrench polishing can be finished, the overturning device serves as the center for symmetric arrangement, the other surface can be machined after overturning, two faces can be machined through one-time feeding, manpower is further saved, and the work efficiencyis improved.