35 results about "Jaw locking" patented technology

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.

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 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 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 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.

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 the field of electric connectors, and in particular relates to a locking plug and an electric connector assembly using the same. The front end of the locking plug is used as an insertion end. The locking plug comprises a plug shell, and a lock sleeve movably sleeved on the plug shell in a front-back locking manner, the front end of the plug shell is provided with an insertion section used for being inserted into an adaptive socket, at least one lock groove for pivoting elastic jaws adapted on the socket is arranged in the outer wall surface of the insertion section, a gap in which the plug shell can enter is arranged between the outer wall surface of the insertion section and the inner wall surface of the lock sleeve, a push spring is supported and arranged between the lock sleeve and the plug shell, the push spring forwards pushes the lock sleeve, an inwards convex locking platform is arranged on the inner wall surface of the lock sleeve, and when the plug is inserted with the adaptive socket and the elastic jaws on the adaptive socket are pivoted in the corresponding lock grooves, the locking platform is positioned at the periphery corresponding to the elastic jaws and is used for limiting the deformation of the elastic jaws to the circumferential periphery of the plug. The locking plug solves the problem that an elastic jaw locking mechanism of the existing electric connector is easy to fail.

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.

Disclosed therein is a vermin screen stopper and a sliding window having the same. The vermin screen stopper, which is caught to an upper profile (211) of a frame (210) of a vermin screen (200) having a retaining groove (211a) longitudinally formed at the central portion in a cross section, includes: a seating portion (310) protruding downwardly in such a way as to be caught to the retaining groove (211a) and having a first face member (311), a second face member (312) and a third face member (313) bent integrally in order; a retaining jaw locking portion (320) connected to the third face member (313), the retaining jaw locking portion (320) protruding upwardly and having a fourth face member (321) and a fifth face member (322) bent integrally in order, wherein the seating portion (310) and the retaining jaw locking portion (320) form a cross section of a shape of ㄹ; and a tension member (330) joined to the inner face of the fourth face member (321). The vermin screen stopper can be installed easily without conversion of the existing vermin screen because it can be applied to the existing vermin screen. The vermin screen stopper and the sliding window having the same can prevent the vermin screen from being easily lifted due to a worker's mistake or a user's mistake when a typhoon or strong wind blows because the upper end portion of the installed vermin screen is elastically supported to the screen insertion groove, so as to prevent a serious accident due to a drop of the vermin screen.