35 results about "Jaw locking" patented technology

A hand tool embodying a wrench or pliers having: a fixed upper jaw being in parallel relationship to a movable lower jaw; the upper jaw integrally constructed to a rectangular support member; the support member integrally formed to a horizontal fixed lower handle; the lower jaw slidable in and contiguous to the support member; the lower jaw made attachable to a rotatable upper handle; the upper handle being opposed over the lower handle; a spring mechanism tensioned to urge the lower jaw, the upper handle, a toggle mechanism and a release lever mechanism away from and backwards of the upper jaw; an adjustment screw or toggle screw mechanism rotatable for an adjustment angle of the toggle; the release lever made rotatable in the upper handle; the release lever levered off of the toggle; and a compound toggle link mechanism levered off of the toggle as an alternate release lever design.

“Parallel Jaw Locking Toggle Wrench / Pliers with Economic / Ergonomic Handles” comprising: a fixed jaw member being in parallel relationship to a slidable jaw member; the fixed jaw member constructed (by riveting or welding means) to support member - the support members being formed integral to a lower handle; the slidable jaw member slidably contiguous to said support member; the slidable jaw member pivotably attachable (by riveting) to a rotatable upper handle opposing said lower handle; a spring tensioned to said slidable jaw member - with the spring attachable to said lower handle; the spring allowing for the operation of said slidable jaw member, a toggle, said upper handle, and an adjustment screw; the toggle pivotably attachable (by riveting) to said upper handle; the toggle pivotably contacting said adjustment screw; the adjustment screw rotatably mounted in said lower handle; a release lever levered off of said toggle; the release lever pivotably attachable (housed) in said upper handle; and a compound toggle link means levered off of said toggle as an alternate design to said release lever.

The invention provides a novel chuck. The novel chuck comprises a shell and clamping jaw assemblies which are arranged in the circumferential direction of the shell in an evenly-distributed mode. Thenovel chuck is characterized in that a clamping jaw locking cover is arranged on the end face of the shell, the clamping jaw assemblies slide relative to the radial direction of the shell so as to beadjusted to the required clamping size and fixed through the clamping jaw locking cover; and a control disc connected with a clamping driving device is arranged in the shell, and the clamping jaw assemblies are controlled through the control disc to realize clamping or loosening within the clamping size. According to the novel chuck, the overall weight is greatly reduced, meanwhile the structure is simpler, assembly and machining are convenient, the production cost is greatly lowered, compared with an existing oil pressure chuck, higher strength and clamping intensity are achieved, self-centering clamping and eccentric clamping can be achieved, the application range is wide, and compared with an existing instrument lathe clamp, the advantages that the adjusting range of the clamping size is large, and a clamping head does not need to be replaced are achieved.

The invention provides a wrench which comprises a body, a fixed jaw, a movable jaw, a slidable connecting assembly, and a handle which is rotatably connected with the handle. The movable jaw is slidably connected with the body through the slidable connecting assembly. The wrench further comprises a jaw locking mechanism which is rotatably connected with the handle. The jaw locking mechanism is used for restricting movement of the slidable connecting assembly relative to the body in a direction to the fixed jaw or departing from the fixed jaw. According to the wrench provided by the invention, the distance between the jaws can be increased so that the jaws bestrides the vertex of a workpiece and a plurality of times of continuous wrench rotation is realized, thereby improving the working efficiency of the wrench. The wrench has advantages of realizing simple structure, bearing a relatively large torque, simplifying a manufacture process and reducing manufacture cost. The wrench is internally provided with a first elastic component, thereby preventing contact between a first elastic component with greasy dirt and realizing more attractive appearance of the wrench. A worm wheel has a double-thread structure. Not only is time for adjusting the distance between the jaws reduced, but also a torque which can bear by the worm wheel is enlarged.

Provided is a multi-type multi-measuring jaw height and depth digimatic caliper, belonging to a measuring instrument. The caliper is mainly composed of a caliper body, a caliper frame, a digital display assembly, a movable jaw locking frame, a lineation jaw, a base, a depth caliper locking frame and a depth base caliper and can be used as a digimatic caliper, a digimatic height caliper and a digimatic depth caliper. The caliper body is in slide connection with the caliper frame; the digital display assembly is in connection with an upper end surface of the caliper frame through screws; internal and external measuring jaws are in connection with extension bars which are respectively in connection with a caliper frame measuring jaw and a movable measuring jaw; the right end of the lineation jaw is sleeved into the movable jaw locking frame to be in connection with the caliper frame measuring jaw; the base is in transitional cooperative connection with a lower segment of the caliper body; an upper end of the depth base caliper is sleeved into the depth caliper locking frame which is respectively in connection with measuring jaws at ends of the caliper frame. The multi-type multi-measuring jaw height and depth digimatic caliper has the advantages of powerful functions, wide application and high cost performance and can be widely used for accurate measurement of mechanical processing members, especially special-shaped precision parts and equipment maintenance parts of all walks of life.

The invention relates to a quick release system for a marine flexible vertical riser. The system comprises a tubing system and a riser system connected with the lower end of the tubing system through an annular riser joint, the tubing system comprises tubing and a tubular riser suspension structure fixed to a ship, the tubing and the tubular riser suspension structure are concentrically arranged, the riser joint is arranged at the bottom of the tubing, a plurality of reinforcing ribs are uniformly arranged on the outer wall of the riser suspension structure at intervals, and a clamping jaw locking mechanism similar to an L shape is rotationally connected to each reinforcing rib; the upper ends of the clamping jaw locking mechanisms are connected with the side wall of the riser suspension structure through compression springs, and the clamping jaw locking mechanisms support the riser joint through steel arm beams at the bottom; pressure applying devices used for inwards applying pressure to the clamping jaw locking mechanisms are arranged on the outer sides of the tops of the clamping jaw locking mechanisms.

The invention provides a wrench, includes a body, a fixed jaw, a movable jaw, a slidable connecting member and a handle which is rotatably connected with the body. The movable jaw forms a slidable connection with the body via the slidable connecting member. The wrench includes a jaw locking mechanism which is rotatably connected with the handle. The jaw locking mechanism is used for restricting the slidable connecting member to move towards to and away from the fixed jaw relative to the body. The invention provides a wrench of which the distance between the jaws is capable of increasing. The fixed jaw and the movable jaw are capable of slipping away from the apexes of the workpiece, which realizes rotating the workpiece continuously and repetitiously. Thus the work efficiency of the wrench is improved. The wrench has a simple structure, and it is capable of enduring larger torque. At the same time, simple structure also simplifies the manufacturing process of the wrench, reducing the costs of manufacture. The first flexible member is internally installed in the body, which makes the first flexible member avoid contacting oil stain in use and the wrench provided by the invention more beautiful at the same time. The worm gear of the wrench uses a double start thread structure, which reduces the time of adjusting the distance between jaws and increases the bearable torque of the worm gear.

The invention discloses a single-point mooring clamping jaw locking device which is characterized in that an installation base and a base are fixedly mounted on a base frame of an offshore platform, an arm supportis arranged between the installation base and the base, the installation base is connected with a mounting seat with a rotary driving function through a spherical bearing, a guide hole isformed in one end of the arm support, and a sleeve, a lead screw and a lead screw rotary driver are mounted; the other end of the arm support and a clamping jaw are simultaneously connected with thebase through spherical bearings, a telescopic driver and an arm support connecting rod are further installed in the middle of the arm support, a clamping jaw connecting rod is hinged to the connectingportion of the end, facing the base, of the clamping jaw, and the telescopic driver, the arm support connecting rod and the other end of the clamping jaw connecting rod are hinged. The telescopic driver drives the clamping jaw to rotate through the arm support connecting rod and the clamping jaw connecting rod to be clamped into a clamping groove of a mooring floating platform, then the driver isrotated to lock the arm support for a second time through the lead screw, and locking is conducted for the third time through the locking nut on the lead screw. The single-point mooring clamping jawlocking device is simple in structure, accurate and stable in locking effect and easy and convenient to operate.

The invention relates to the field of electric connectors, in particular to an anti-decoding plug and an electric connector component using the same. The plug takes a front end as a plug end, and comprises a plug shell body; the plug shell body is provided with a plug section; the outer wall surface of the plug section is provided with at least one lock groove; a lock sleeve is movably arranged on the plug shell body in the way of preventing fall-off back and forth; a gap for a socket shell body to enter is arranged between the outer wall surface of the plug section and the inner wall surface of the lock sleeve; a push spring is jacked between the lock sleeve and the plug shell body; a locking bench which is protruded inwards is arranged on the inner wall surface of the lock sleeve; when the plug is plugged with an adapted socket, the locking bench is arranged on the periphery of a corresponding elastic jaw and restricts the deformation of the elastic jaw to the circumferential periphery of the plug; when the lock sleeve is pulled backwards, the locking bench moves to the corresponding elastic jaw and the elastic jaw slides from the corresponding lock groove; the lock sleeve is in transmission connection with an unlocking pull ring; and according to the anti-decoding plug and the electric connector component using same, the problems that the elastic jaw locking mechanism of an existing electric connector easily loses effect and the unlocking in a narrow space is inconvenient are solved.

The invention relates to a rapid pipe fitting clamping method and a pipe wrench and solves the problem that the existing pipe wrench is slow in clamping. The method is that a wrench handle hinged with a wrench sleeve is pressed or lifted to achieve jaw locking and release, and adjustment of jaw size is achieved through relative sliding of the wrench sleeve and a handle section of an L-shaped wrench head. The pipe wrench is that the L-shaped wrench head is connected with the wrench handle through the wrench sleeve, the upper portion of the wrench sleeve is hinged with the wrench sleeve in a sleeved mode, the lower portion of the wrench sleeve is in transversely sliding fit in a sleeved mode, a jaw tooth row is manufactured on the inside of the head section of the L-shaped wrench head, a location tooth row is manufactured on the inside of the handle section, and an end face jaw tooth row is manufactured at the front end of the wrench handle. A locating pin supported by a spring is assembled on the wrench sleeve, a limiting tooth row matched with the location tooth row on the handle section of the wrench head is manufactured at the front end of the locating pin, the locating pin presses towards the wrench handle on the front portion of a hinged shaft under supporting of the spring, and the locating pin presses towards the location tooth row on the handle section of the wrench head under extrusion of the wrench handle on the front portion of the hinged shaft. The rapid pipe fitting clamping method and the pipe wrench can rapidly and reliably clamp and release pipe fittings, and have the advantages of being convenient to use, rapid and reliable in operation and capable of obviously improving operation efficiency.

The invention relates to a passive manipulator. The passive manipulator comprises a mechanical arm, at least two clamping jaws, a clamping jaw locking mechanism and a clamping jaw seat positioned below the mechanical arm, wherein each clamping jaw comprises a clamping rod and a clamping head connected to the front end of the clamping rod. The clamping jaw seat is movably connected with the mechanical arm and can move up and down relative to the mechanical arm, the clamping rod is provided with a first connecting point and a second connecting point, the first connecting point is positioned between the clamping head and the second connecting point, the first connecting point is hinged on the clamping jaw seat, and the second connecting point is movably connected with the mechanical arm. Theclamping jaw locking mechanism comprises a locking hook and a guiding and locking structure, wherein the locking hook, the guiding and locking structure are separately arranged on the clamping jaw seat and the mechanical arm, the guiding and locking structure comprises a locking groove and a guiding structure for guiding the locking hook to move into the locking groove and to disengage from the locking groove, and the clamping jaws do not need a driving mechanism with a power source to drive when carrying out clamping and loosening actions, the passive manipulator is compact in overall structure, small in volume, low in cost, and has high explosion-proof safety.

The invention relates to a jaw locking type positive and negative rotation drill pipe, and belongs to the technical field of coal mine drilling. The jaw locking type positive and negative rotation drill pipe comprises a pipe body, wherein a male connector is arranged on the front end of the pipe body, a female connector which can be in threaded connection with the male connector is arranged on the rear end of the pipe body, and the pipe body, the male connector and the female connector are each of a hollow structure so as to form an axially-through center hole; a transmission rod which is in sliding connection with the center hole is arranged in the center hole, and a transmission pin which penetrates through a chute formed in the male connector and is connected with a sliding sleeve which sleeves the male connector is arranged on the front end of the transmission rod; and a plurality of jaw teeth which can be matched with the rear end of the female connector and are used for circumferential locking are arranged on the front end of the sliding sleeve, the jaw teeth include a long tooth and a plurality of short teeth, the meshing length of the long tooth is h longer than that of the short teeth, and h is smaller than the matching screw pitch p of the male connector and the female connector. According to the jaw locking type positive and negative rotation drill pipe, the long teeth and the short teeth which are gradually meshed are arranged, so that accurate meshing of the meshing teeth during connection of the drill pipe is easily realized, and the reliability in connection of the drill pipe is increased.

The invention provides a jaw-locking-type theft-prevention inspection well lid, which comprises a well lid (1), a pawl axle (2), a pin (3) and a lid seat (4), both inner circle of the well lid (1) and the outer circle of the lid seat (4) are round, the positions close to the margins at the left and right sides of the central axis of the well lid (1) are respectively provided with a hole which is provided with an internal thread, the pawl axle (2) is arranged inside the hole, the left and right sides of the position which is close to the inner side of the central axis of the lid seat (4) and corresponds to the hole position of the well lid (1) are respectively provided with a through hole without a thread, the lower end surface of the hole is an inverted conical surface. After the well lid (1) is put into the inner circle of the lid seat (4), the jaws of the pawl axle (2) are pop out and are tightly locked on the conical surface at the lower end of the lid seat (4), the pin (3) in the pawl axle (2) can lock the jaws; the inspection well lid is simple in structure and low in manufacture cost, uses few components, the well lid and the lid seat are interlocked, therefore, the theft prevention effect is good, misplacement, overturn or falling are not caused, thus being applicable to various inspection wells.

The invention relates to a stapler with a stable jaw locking function. The stapler includes a stable chamber assembly, a stable anvil, an adapter, and a pushing cutter assembly. The staple chamber assembly includes a staple chamber frame and a staple chamber. The pushing cutter assembly includes an I-shaped cutter and a pusher cutter bar. A cutter moving groove is formed in the length direction ofthe staple chamber and the staple chamber frame. In addition, a pressing block is arranged and includes two pressing arms and two supporting arms. The pressing block sleeves the pushing cutter assembly, and a pushing cutter assembly through hole is formed in the pressing block. Inserting-connecting portions are disposed at the positions, facing the pushing cutter assembly through hole, of the pressing arms or the supporting arms, and correspondingly, a first inserting-connecting sinking slot is formed in the pushing cutter assembly. Elastic outer arch portions are arranged at the central portions of the supporting arms. Thus, when the stapler is in the excited state, the elastic outer arch portions are subjected to extrusion effect of the cutter moving groove to increase the height dimension of the pressing block, so that the inserting-connecting portions are separated from the first inserting-connecting sinking slot, the tension of the jaw is born by the pressing block, and the stress of the I-shaped cutter in the height direction of the I-shaped cutter is reduced.

The invention discloses a rapid clamping device used for battery machining. The rapid clamping device used for battery machining comprises a base, a clamping jaw fixing sleeve, a telescopic stand column and chucks. Wheels are mounted at the lower end of the base. A telescopic stand column fixing block is mounted at the upper end of the base. The telescopic stand column is mounted at the upper endof the telescopic stand column fixing block. An alarm light is mounted at the upper end of the telescopic stand column. The clamping jaw fixing sleeve is mounted outside the telescopic stand column and is connected with rotary blocks. The chucks are mounted at one ends of the rotary blocks. Sliding grooves are formed in the chucks. A workpiece clamping jaw locking groove is formed in one end of each sliding groove. A plurality of workpiece clamping jaws are mounted at the upper end of each sliding groove. A stretchable workpiece clamping groove is formed in one end of each workpiece clamping jaw. The rapid clamping device used for battery machining is simple in structure and convenient to use; the rapid clamping device is provided with two sets of workpiece clamping jaws so that the rapidclamping device can be used by two operators at the same time, and the utilization rate of the device is high; and the rapid clamping device can move freely through the wheels, so that the rapid clamping device is high in applicability and convenient to popularize.

Curved jaw locking pliers comprise an upper pliers arm and a lower pliers arm. The upper pliers arm is connected with a pliers jaw through a rivet. A semicircular toothed pressing block is arranged on the lower portion of the pliers jaw. The lower pliers arm is fixed below the upper pliers arm. The lower pliers arm is connected with a pliers jaw through a rivet, and a semicircular toothed pressing block is arranged on the upper portion of the pliers jaw. A movable pressing rod is fixed to the lower pliers arm, and is connected with the lower pliers arm through a rivet. The upper pliers arm is provided with an adjusting nut which is located at the end of the upper pliers arm. The movable pressing rod is arranged at the end of the lower pliers arm. The semicircular toothed pressing blocks are vertical type sawteeth. According to the curved jaw locking pliers, due to the fact that an adjusting nut is arranged at the end of the upper pliers arm, the clamping force of the curved jaw locking pliers can be further controlled, and the curved jaw locking pliers can be used for processing workpieces made of different materials with different strengths; the teeth are vertical sawteeth, so that the biting force of the curved jaw locking pliers can be reinforced; and the workpieces can be clamped more tightly, and an operator can operate the pliers with less effort.

The invention discloses a self-unlocking ejection device with paralleled springs is applied for smaller operation spaces. The technique scheme includes that a direct-current motor (25) is adopted in power drive of an ejection device to drive a straight push rod (22) to stretch springs (3) parallelly arranged, and elastic potential energy is stored; when in a certain distance, an unlocking block (13) performs self-unlocking to a locking component composed of a locking jaw (17) and a jaw mounting seat (19) and the like; the springs (3) stretched drive an operation component composed of a jaw-locking seat (10) and an operation tray (5) and the like to realize ejection operation; and then the straight push rod (22) drives the locking component to be self-locked and return back to normal to complete an ejection circle. Since only one direct-current motor can drive the whole operation process, the locking component is self-unlocked in ejection and self-locked after the ejection, and a plurality of springs are connected with the straight pull rod in parallel, the self-unlocking ejection device with the paralleled springs is simple and convenient to control, strong in ejection force, compact in installation, efficient, and high in reliability.

The invention discloses a jaw locking type differential mechanism. The jaw locking type differential mechanism comprises a shell assembly, a left half axle gear, a cross axle, a right half axle gear and end face jaw teeth, wherein the left half axle gear, the cross axle, the right half axle gear and the end face jaw teeth are arranged in the shell assembly, the cross axle is provided with a planetary gear, the end face jaw teeth are slidably connected with the shell assembly, the shell assembly is connected with a locking assembly, the locking assembly is connected with the end face jaw teeth,and the locking assembly can push the end face jaw teeth to move in the direction of the right half axle gear. According to the jaw locking type differential mechanism, the locking assembly can pushthe end face jaw teeth to move in the direction of the right half axle gear, the end face jaw teeth are meshed with the right half axle gear, rigid connection between the right half axle gear and theshell assembly is formed, rotation of internal parts of the differential mechanism is limited, locking of the differential mechanism is achieved, the reliability of the differential mechanism is improved, and the bad road trafficability of a vehicle is greatly improved.

The invention provides a small space docking mechanism based on a molded surface guiding three-jaw locking action time sequence, and belongs to the technical field of spacecraft on-orbit service. The mechanism comprises a fixed table, a service active end, a target passive end and a transmission system, wherein the edge profile is used for conducting the large-angle tolerance guiding butt joint process, a single driving source is adopted for linkage of three jaws to be opened and closed, and locking and unlocking are achieved. Meanwhile, heat exchange and information transmission under axial tolerance are realized by using floating connection. The invention provides a design scheme for realizing locking under large butt joint tolerance for a small space butt joint mechanism, and solves the problem of realizing butt joint locking under the condition of not occupying the position of an electromechanical-thermal integrated transmission interface on a butt joint surface. The invention improves the space utilization rate from the root of design, and is simple and compact in design, high in deviation correction capability and reliable in locking.

The invention relates to the field of electric locks, and discloses an electric self-priming lock. A locking motor is fixed to a base, an output shaft of the locking motor is engaged with one side ofa gear piece, the other side of the gear piece is rotatably connected with the base, one end of a pull rod is rotatably connected with the other side of the gear piece, and the other end of the pull rod is tangent to one end of a resisting block all the time before the electric self-priming lock is unlocked; the resisting block, the pull rod, a jaw locking block, a limiting block and an unlockingpiece are rotatably connected with the base respectively, and the gear piece, the pull rod, the jaw locking block and the limiting block are rotatably interlocked in sequence; and an output shaft of an unlocking motor is connected with one end of the unlocking piece through wire drawing, and the unlocking piece, the limiting block and the resisting block are rotatably interlocked. Compared with the prior art, the electric self-priming lock has the advantages of reasonable structural design, safety and reliability, and no matter which state a door lock is in, when the locking motor is damaged,the electric self-priming lock can be manually unlocked.

The invention discloses a switch tool for a cylinder valve of a high pressure gas cylinder, and relates to the technical field of special mechanical tools for the power industry. The switch tool for the cylinder valve of the high pressure gas cylinder comprises a V-shaped frame, a hand wheel, an adjusting rotary knob provided with a thread and a movable jaw provided with a rack. A triangular clamping buckle structure is formed through a first fixing jaw, a second fixing jaw on the V-shaped frame and the movable jaw. The clamping buckle structure is matched with the cylinder valve of the high pressure gas cylinder, and opening or closing of the cylinder valve of the high pressure gas cylinder is achieved by rotating the hand wheel. The adjusting rotary knob provided with the thread is engaged with the movable jaw provided with the rack through the thread and the rack, the distances between the movable jaw provided with the rack and the first fixing jaw as well as between the movable jawprovided with the rack and the second fixing jaw can be adjusted by rotating the adjusting rotary knob provided with the thread so as to adapt to the cylinder valves of the high pressure gas cylinders with different sizes, and the application range is wider. The switch tool for the cylinder valve of the high pressure gas cylinder is simple in structure, convenient to carry and low in cost, and has high practical value.

The invention discloses neurosurgery head operation positioning equipment which comprises a supporting base, driving wheels are symmetrically and rotationally arranged at the four corners of the lower end face of the supporting base, and the supporting base is driven by the driving wheels to run on the ground; the bearing base plate is transversely arranged on the upper end face of the supporting base through a lifting seat; the bearing cushion layer is embedded in the middle of the upper end face of the bearing base plate, and the bearing cushion layer is used for bearing the afterbrain of the head of the patient; the diffusion and forehead protection assemblies are symmetrically arranged on the upper end face of the bearing base plate and located on the left side and the right side of the bearing cushion layer, and the diffusion and forehead protection assemblies conduct two-side positioning on the frontal bone of the patient and preferentially conduct external diffusion on the cortex of the frontal bone before positioning; and the jaw locking and neck lifting assembly is arranged on the middle side of the interior of the bearing base plate, and one end of the jaw locking and neck lifting assembly is connected with the diffusion and forehead protection assembly.

Disclosed is a wrench, comprising a jaw locking mechanism (10) in the form of an ejector pin, being used to limit a sliding connection component (23, 241, 242) to move relative to a body (2) in a direction toward or away from a fixed jaw (4), and further comprising a handle locking mechanism which is used to limit or allow the rotation of a handle (3) relative to the body (2). By means of the wrench, continuous and multiple rotation of a workpiece is achieved.

The invention provides a pair of novel curved jaw locking pliers, which comprises an upper plier arm and a lower plier arm, wherein an upper jaw is fixed at the head part of the upper plier arm; a lower jaw is arranged below the upper jaw, and connected with the lower plier arm through a rivet; a movable pressing rod is arranged above the lower plier arm; the other end of the movable pressing rod is fixed in the lower plier arm; a tension spring is arranged in the middle of the upper plier arm and connected with the lower jaw; an adjusting nut is arranged at the tail part of the upper plier arm; and a nickel plating coating is arranged on each of the upper jaw and the lower jaw. According to the novel curved jaw locking pliers, the tension spring is arranged in the middle of the upper plier arm, so that physical exhaustion of an operator during the process of clamping a workpiece is reduced, the processing speed of the operator is increased, and a certain clamping force is kept between the two jaws; the opening degree of the jaw can be adjusted, and the curved jaw locking pliers can meet processing needs of workpieces of different thicknesses since the adjusting nut is arranged at the tail part of the upper plier arm; and since the nickel plating coatings are arranged on both the upper jaw and the lower jaw, the corrosion of the workpeice to the jaws can be resisted and the service life of the curved jaw locking pliers is prolonged greatly.

The invention provides a small space docking mechanism based on a profile-guided three-claw locking action sequence, which belongs to the technical field of spacecraft on-orbit services. The mechanism includes a fixed table, a service active end, a target passive end and a transmission system. The edge profile is used to carry out a large-angle tolerance guiding and docking process. A single drive source is used to link the three claws to open and close to achieve locking and unlocking. Heat exchange and information transfer within axial tolerances are achieved using floating connections. The invention provides a design scheme for realizing locking under large butt tolerance for a small space docking mechanism, solves the problem of realizing butt locking without occupying the position of the electromechanical and thermal integrated transmission interface of the docking surface, and improves the design root cause. The utilization rate of space is improved, the design is simple and compact, the deviation correction ability is large, and the locking is reliable.

A locking chair adjustment mechanism for adjusting a position of a chair component. The mechanism comprises a central shaft, a spiral jaw clutch comprising two interconnecting spiral jaw interfaces and a slotted element wherein the slot is sized to slideably receive the central shaft for displacement of the slotted element when the mechanism is in an unlocked position. A locking pad locks the mechanism against the slotted element. A rotatable adjustment handle allows the mechanism to toggle from a locked position, to an unlocked position, by displacement of the spring mechanism caused by the rotation of the spiral jaw interface fixedly mounted on the adjustment handle, therefore releasing pressure on the locking pad. A spring mechanism is activated when the claimed mechanism goes from a locked position to an unlocked position, pulling the claimed mechanism back to a locked position. The claimed mechanism provides a low cost solution offering better locking capabilities than traditional braking mechanisms.