29 results about "Joint locking" patented technology

The invention relates to the technical field related to medical instruments, and discloses a multi-joint locking type retractor for preparing a free tissue valve, which comprises a first joint arm, a second joint arm and a third joint arm, a bedside fixing frame is arranged at the lower end of the first articulated arm, a second articulated arm is rotatably arranged at the upper end of the first articulated arm, and the medical bed is characterized in that a third articulated arm is rotatably arranged at the end part of the second articulated arm, and a clamping module is rotatably arranged at the front end of the third articulated arm; according to the invention, through a cooperative structure of a fixing buckle, a rotating buckle, a bolt and a knob of the bedside fixing frame, and through cooperation of a threaded sleeve of the first joint arm and a thread adjustment design of the telescopic joint, stable connection (no obvious looseness) and height adaptation (according with operation habits of operators and requirements of operation sites) of the device and an operation bed frame are realized.

The invention discloses a universal butt-joint high-rigidity butt-joint locking quick-change device for large-scale modular on-orbit assembly, and belongs to the technical field of space robots. An existing butt joint interface is poor in universality and difficult to adapt to diversified on-orbit assembly requirements. A first positioning surface is arranged at the top end of a driving end shell, and an opening is formed in the outer circumferential surface; a clamping jaw driving assembly is arranged in the shell; the clamping jaw comprises three capturing fingers and three groups of corresponding finger connecting assemblies, each group comprises a hinge seat, a finger connecting rod, a first pin shaft, a second pin shaft and a third pin shaft, the hinge seat can be driven by the clamping jaw driving assembly to move up and down, one end of each capturing finger is connected with one end of the corresponding finger connecting rod through the corresponding first pin shaft, and the other end of each capturing finger extends out of an opening of the shell; the other end of the finger connecting rod is connected with the hinge seat through a second pin shaft; the third pin shaft is mounted at the position, close to the opening, of the shell and rotationally connected with the capturing finger; the passive butt joint module is provided with a locking groove matched with the clamping jaw and a second positioning face matched with the first positioning face.

The present application relates to the technical field of joint equipment, more particularly to a nuclear grade quick joint with pressure relief and multi-stage safety interlocking, comprising: a plug and a socket structure; the socket structure comprises: an adapter pipe, one end of the adapter pipe is connected with an adapter head, and the other end of the adapter pipe is connected with the plug in a plug-in manner; a locking mechanism for limiting and locking the plug is installed inside the adapter pipe, and a ball valve mechanism for cutting off the medium channel between the adapter head and the plug is installed inside the adapter pipe, the ball valve mechanism is connected with a control sleeve which is slidably arranged on the outer side surface of the adapter pipe, and an auxiliary pressure relief mechanism is installed on the control sleeve to discharge the medium in the ball valve mechanism and the medium channel after the ball valve mechanism cuts off the medium channel. The present application has reliable pressure relief function, and can realize multi-stage safety interlocking with the joint locking mechanism, so that the unlocking and dismounting of the plug are allowed only after the cavity pressure is safely released and the residual medium is completely discharged, thereby comprehensively improving the safety and reliability of the operation of the nuclear grade pipeline connection.

The utility model discloses a rapid installation flexible pipe connecting joint for first-aid repair and repair, which comprises a joint connecting locking fixing sleeve installed on a flexible pipe; the connector connecting and locking inner sleeve is installed on the flexible pipe, the diameter of the connector connecting and locking inner sleeve is smaller than that of the connector connecting and locking fixing sleeve, and the connector connecting and locking inner sleeve abuts against the connector connecting and locking fixing sleeve; one end of the connector inner core is inserted into the flexible pipe, and the other end of the connector inner core is connected with the connector locking cap. And the connecting joint combination consists of two connecting joints. The rapid installation flexible pipe connector for first-aid repair is easy and convenient to install and does not need to be matched with large-scale equipment. And the joints do not need to be welded, so that potential safety hazards are reduced.

A folding wheelchair joint locking structure comprises a fixing seat, a supporting rod, a limiting rod and an extension spring, the fixing seat is fixed to a rear supporting frame, one end of the supporting rod is hinged to a front supporting frame to form a hinged end, the other end of the supporting rod is in sliding fit with the fixing seat to form a movable end, the limiting rod is installed on the fixing seat, and the extension spring is installed on the limiting rod. One end of the extension spring is hooked to the end of the fixing base, the other end of the extension spring is hooked to the movable end of the supporting rod, a double-locking mechanism is achieved through the fixing base, the supporting rod, the limiting rod and the extension spring, and use safety and driving stability are remarkably improved. During folding, the supporting rods are automatically clamped into the positioning grooves to form self-locking, and accidental unfolding caused by carrying vibration is effectively prevented; during unfolding, the limiting rods and the extension springs cooperate to ensure that the front supporting frame and the rear supporting frame are stably unfolded during driving of the joint parts, the stability is improved, the technical defect of joint locking of an existing wheelchair is overcome, and the user experience is improved.

1. The name of the design product: valve (silk joint locking valve). 2. The use of the design product: for controlling the medium flow in the pipeline. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The invention belongs to but is not limited to the technical field of medical instruments, and particularly relates to aortic dissection blocking forceps capable of being adjusted in multiple degrees of freedom, comprising a multi-joint linkage adjusting module, which has a core of a forceps arm composed of at least three lockable rotary joints, realizes multi-dimensional posture adjustment of a forceps body, and adapts to different blood vessel trends; the forceps head self-adaptive rotating module is connected to the joint at the farthest end, 360-degree continuous rotation of the forceps head is achieved, and it is ensured that the clamping face of a jaw is perpendicular to the longitudinal axis of the blood vessel; the accurate control and positioning module is integrated with an angle fine adjustment knob and an ergonomic handle, and real-time and accurate posture fine adjustment and stable holding in an operation are achieved; and the safe locking and quick release module is linked with a joint locking mechanism and a handle quick release button to realize joint locking and unlocking and quick clamp loosening under emergency conditions.

The utility model discloses a tongue lifting device and visual laryngoscope, including handle, rotational joint, angle adjusting mechanism and laryngoscope, rotational joint includes first joint and second joint, handle is connected with the first joint, laryngoscope is connected with the second joint, angle adjusting mechanism is connected with the angle adjusting mechanism, and the angle adjusting mechanism is connected with the angle adjusting mechanism. The angle adjusting mechanism is arranged between the first joint and the second joint so as to lock or unlock the second joint relative to the first joint; the angle adjusting mechanism comprises an operating piece and a locking piece, the operating piece, the locking piece, the first joint and the second joint are coaxially arranged, and a plurality of clamping positions are arranged in the first joint in the circumferential direction around the center shaft; the locking piece is arranged between the first joint and the second joint, and clamping teeth are arranged on the periphery of the locking piece. The operation piece is arranged on one of the first joint and the second joint in a sliding mode along a pivot shaft of the first joint. The utility model has the advantages of simple operation and convenient use.

The utility model discloses a screw-in type fastener, and particularly relates to the technical field of fasteners, the screw-in type fastener comprises a thread bushing, a bolt and a support frame, the bolt is in threaded connection with the inner wall of the thread bushing, the support frame is located on one side of the thread bushing, and a butt joint locking assembly is arranged in the support frame; the butt joint locking assembly comprises a linkage screw rotationally arranged in the supporting frame, the outer wall of the linkage screw is in threaded connection with two sleeving blocks, one side of each sleeving block is fixedly connected with a linkage block, and one end of each linkage block is fixedly connected with a positioning strip. The butt-joint locking assembly is adopted, the linkage screw rod rotates in the supporting frame, the linkage screw rod drives the two sleeving blocks to get close to each other under the action of thread transmission force, the inserting column is inserted into the inserting hole, the inserting block is inserted into the positioning hole in the first rotating cap, the bolt is prevented from loosening and rotating, and meanwhile the first rotating cap is prevented from loosening and rotating; and the locking firmness is higher.

The application discloses a pipeline tightening compression joint, which comprises a circular joint inner core, a joint compression sleeve and a joint outer sleeve. The outer side of the joint inner core is provided with a protruding part, and the inner side of the joint compression sleeve is provided with a clamping groove part corresponding to the protruding part. The joint compression sleeve is composed of several arc-shaped pieces which are movably connected. The surface of the joint compression sleeve and the joint outer sleeve is an inclined surface. The outer surface of the joint compression sleeve is provided with grooves at intervals. An arched spring piece is arranged in each groove. An iron piece is arranged above the spring piece. One end of the iron piece is connected with the side surface of the groove through a pin, and the other end of the iron piece extends out of the groove. The inner wall of the joint outer sleeve is provided with a clamping groove which is recessed and corresponds to the groove. Corresponding connecting holes are arranged on the outer side flanges of the joint outer sleeve and the joint inner core. The joint locking force is realized by the inclined surface sliding, the hose is clamped, the self-locking structure is increased, the structure is light and compact, the joint connection firmness is high, the installation efficiency is fast, and the installation cost is low.

The application provides a multifunctional exoskeleton device, and belongs to the technical field of wearable auxiliary equipment, specifically, a hip joint locking mechanism is arranged on a hip joint module, and a knee joint locking mechanism is arranged on a knee joint module; a first roller is arranged on the rear of a waist module through a folding support, a folding locking mechanism for locking the folding support in a folded state or an unfolded state is arranged on the folding support, a second roller is connected to the knee joint module or a lower leg part through a supporting rod, the supporting rod is rotatably arranged on the knee joint module or the lower leg module, and a supporting locking mechanism for locking the position of the supporting rod is arranged on the knee joint module or the lower leg part; a plurality of connecting rods are detachably mounted on a thigh part, a first connecting seat is arranged on the end of the thigh part close to the knee joint, a second connecting seat is arranged on the end of the lower leg part away from the knee joint, the first connecting seat and the second connecting seat are used for detachably clamping the end of the connecting rod, and the multifunctional exoskeleton device comprises a standing mode and a trolley mode.

This invention discloses a push-pull retractable footrest and a seat. The push-pull retractable footrest includes a footrest, an outer telescopic component, an inner telescopic component, a connecting mechanism, a joint locking mechanism, and a position locking mechanism. The inner telescopic component is slidably connected to the outer telescopic component, and the linkage mechanism is rotatably connected to the footrest. The joint locking mechanism includes a locking head that locks or unlocks the footrest, and the position locking mechanism is locked at a first limiting part or a second limiting part. The seat includes a push-pull retractable footrest. In this invention, the linkage mechanism, joint locking mechanism, and position locking mechanism are linked together with the sliding of the inner telescopic component relative to the outer telescopic component, and perform corresponding unlocking, locking, and footrest rotation actions. When the footrest needs to be retracted, the user only needs to push or pull the inner telescopic component to switch the footrest's state. Furthermore, the footrest and the inner telescopic component can be locked after the footrest is retracted, keeping the footrest stable. The retraction and retraction actions are minimal, resulting in high operational convenience.

The invention provides a linear drive continuum robot hinge locking mechanism based on electrostatic locking and a preparation method, the locking mechanism comprises a joint connecting rod assembly and an electrostatic braking unit, the joint connecting rod assembly comprises a connecting section, and a joint connecting rod driven end and a joint connecting rod driving end which are the same in structure are symmetrically arranged on the two sides of the connecting section; the joint connecting rod driven end and the joint connecting rod driving end each comprise a base, two connecting pieces are arranged on each base in parallel, and the electrostatic braking units are embedded in the bases. The electrostatic braking unit comprises a single-face electrode set and a double-face electrode, and the double-face electrode is inserted into the single-face electrode set. According to the linear-driven metamorphic robot, the structure of the hinge locking joint is optimized, stepless locking and rapid unlocking of the joint are achieved through an electrostatic locking mechanism, on the premise that a driving source and the outer diameter are not increased, the stability and adaptability of the locking torque of the joint are improved, and a core joint solution is provided for application of the linear-driven metamorphic robot.

A flex joint headed tool with a locking mechanism adapted to selectively retain the angle of the head relative to a handle. The locking mechanism may retain the head in at least one of two positions using a bias member and two detent balls disposed at opposite ends of the bias member. The bias member and detent balls may be disposed in a through hole disposed in a locking lever, with one detent ball engaging a joint tang and the other detent ball engaging a detent disposed in a tool body or handle, wherein the detent balls provide tactile response to a user. The locking lever may rotate between locked and unlocked positions, whereby in the locked position, the ratchet head is prevented from rotating relative to the handle, and when in the unlocked position, the head may rotate relative to the handle.

1. The name of the design product: the main body of the gas joint locking device. 2. The use of the design product: the overall use is the gas joint locking device; the local use is the main body of the gas joint locking device. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design. 6. Other circumstances that need to be explained: the part shown by the dashed line in the figure does not require appearance protection; the part circled by the dash-dot line does not require appearance protection.

The utility model belongs to telescopic joint locking technical field discloses a kind of telescopic joint locking mechanism for petroleum steel pipe stability, including outer locking ring, connecting piece, locking inner tube and baffle, the accommodating space is formed in the inside of outer locking ring, the connecting piece and locking inner tube are set in the inside of outer locking ring, the locking inner tube is movably inserted in the inside of connecting piece, the outer locking ring is fixedly connected with the locking inner tube by fixed pin, the baffle is set in the inner end surface of outer locking ring, the baffle is fixedly connected with the connecting piece by screw.The utility model in the quick insertion of outer locking ring and locking inner tube by fixed pin is set, in combination with the screw fixing mode of baffle and connecting piece, the modular assembly of telescopic joint locking mechanism is realized, locking and unlocking can be completed by only inserting or pulling out fixed pin, without disassembling multiple fasteners one by one, avoid the delay of operation caused by operation time-consuming too long.

The utility model relates to the technical field of curtains, in particular to a sectional type curtain track which comprises track units and a splicing structure, each track unit comprises a side track, a transmission rack, a side connection positioning mechanism and a side connection locking mechanism, and the splicing structure comprises a butt joint locking mechanism and a butt joint positioning mechanism which are used for locking two adjacent side tracks. The butt joint locking mechanism comprises an insertion piece, an elastic lock catch, an insertion groove and a buckling groove. The side connection locking mechanism is adopted to lock the transmission rack and the side rail corresponding to the transmission rack in length to form the rail unit, and then when the insertion piece is connected with the insertion groove in an inserted mode, the elastic lock catch is connected with the buckling groove in a clamped mode to achieve locking of the two adjacent side rails. According to the sectional type curtain track, the track units with different lengths are spliced to form the curtain track with any length, the processes of measuring, cutting and the like are not needed, and the transportation cost is reduced.

35 22779575_1 (GHMatters) P119761.AU.2 Abstract Adapter device and connecting mechanism thereof (Figure 1) A connecting mechanism (300) includes a first joint (310), a second joint (320), a lock pin (350), an unlock operating member (360, 360') and a stationary base (330). The first joint (310) is pivotally connected to the second joint (320). The lock pin (350) is movably disposed between the first joint (310) and the second joint (320) and configured to lock or unlock the first joint (310) and the second joint (320). The unlock operating member (360, 360') is connected to the lock pin (350) and configured to drive the lock pin (350) to disengage from the first joint (310) or / and the second joint (320), so as to unlock the first joint (310) and the second joint (320). The stationary base (330) is connected to the first joint (310) or the second joint (320) and configured to be detachably connected to a baby carriage. Abstract 20 26 20 49 39 25 J un 2 02 6 A b s t r a c t 2 0 2 6 2 0 4 9 3 9 2 5 J u n 2 0 2 6

The invention discloses a tenon-and-mortise type 3D printing multi-material composite bionic ankle-foot orthosis, which belongs to the technical field of rehabilitation engineering and additive manufacturing, and comprises a tibia supporting part, a tenon-and-mortise type locking structure, an ankle joint part, a sole supporting part and an ankle-foot orthosis bandage, the tibia supporting part is of a semi-arc surface structure, the section of the tibia supporting part is gradually reduced from top to bottom, and the tibia supporting part is formed by compositely printing an inner side flexible attaching layer and an outer side rigid layer; the tibia supporting part, the ankle joint part and the sole supporting part are sequentially connected in a transition fit and locking manner through a mortise and tenon locking structure; the ankle joint part is of an approximately L-shaped cambered surface wrapping structure, and a bionic skin microstructure contact layer is arranged on the inner side of the ankle joint part; the sole supporting part is of a U-shaped cambered surface structure, and the section of the sole supporting part is gradually increased from inside to outside; a bionic octopus sucker is arranged on the bottom surface of the inner side, and sole anti-skid lines are arranged on the bottom surface of the outer side; the ankle-foot orthosis bandage is used for fixing the shank and the foot respectively. In conclusion, the invention has great application value in the fields of rehabilitation engineering and medical instruments.

The utility model relates to the technical field of medical instruments, and discloses a surgical instrument easy-to-align joint locking mechanism which comprises a first rotating plate and a second rotating plate, embedding grooves are formed in the midpoint of one side of the first rotating plate and the midpoint of one side of the second rotating plate, adjusting plates are embedded in the two embedding grooves, and the adjusting plates are connected with the first rotating plate and the second rotating plate. Positioning blocks are movably embedded in the midpoints of one sides of the lower end faces of the first rotating plate and the second rotating plate, the outer surfaces, located in the first rotating plate and the second rotating plate, of the two positioning blocks are fixedly sleeved with springs, and a rotating shaft is arranged between the first rotating plate and the second rotating plate. According to the joint fixing device, the adjusting plates embedded in the first rotating plate and the second rotating plate can better align and fix the joints of a patient, and the two arranged fixing mechanisms can better play a role in rotating and fixing the first rotating plate and the second rotating plate.

The application discloses a few-drive plane continuum robot based on stable self-locking rotary joints, which comprises a driving device, a mounting seat and a continuum robot module, wherein the driving device comprises a frame, a linear module, a traction rope, a force sensor, a hand screw adjusting screw and the like; the continuum robot module comprises stable self-locking rotary joints, elastic rods and end flanges. The stable self-locking rotary joints are triggered by a memory alloy coil and a spring, so that after a face ratchet slider and a rotary connecting piece form mechanical constraint, each joint can be kept in a self-locking or rotating state with zero power consumption. Therefore, the robot has multiple operation modes, such as whole section movement, joint section movement and joint movement, under the condition that only one set of driving units is arranged, so that the robot has flexible movement performance and various work spaces. Meanwhile, the rigidity of the robot also changes with the joint locking state, and when all the joints are self-locked, the robot can maintain the shape without the need of motor driving.

The utility model belongs to the technical field of LLC transformers, and particularly relates to a magnetic integrated LLC transformer with a joint locking structure, which comprises a bottom plate, a magnetic ring is mounted on the surface of the bottom plate, a lead at the bottom of the magnetic ring penetrates through the bottom plate to be butted with a wire connector, and a sleeve is sleeved on the outer wall of the lead; the utility model relates to a lead wire connector, which comprises a sleeve member, the bottom of the sleeve member is fixedly connected with a sheath, the inner wall of the connecting end of the sleeve member and the sheath is sleeved with an internal thread bushing, the bottom of the internal thread bushing is connected with an extrusion block, and one side of the extrusion block is connected with the outer wall of the lead wire. Then the four extrusion blocks are inserted into a gap between the lead and the wire connector, and after the insertion is completed, the internal thread sleeve is adjusted down to be in threaded butt joint with the four ejection blocks for locking, so that when the lead is in butt joint with the wire connector, the wire connector does not need to be pinched to be flat and the lead is locked like a traditional connection mode; therefore, the lead and the wire connector can be conveniently maintained and detached in the later period.

This invention relates to a lockable, variable stiffness linearly driven continuum robot, comprising a base, a linear guide propulsion module, coaxially fitted inner and outer tube continuum robot modules, and corresponding modules for driving, rotating, and locking the inner and outer tube continuum robot modules respectively. Both the inner and outer tube continuum robot modules consist of multiple joints connected in a serpentine structure via revolute joints, and include at least one locking joint. The locking module controls the rotation of the locking joint, causing its internal structure to engage a limiting block on the locking line, thereby fixing the length of the locking line from the base to the joint, achieving overall mechanical locking and stiffness enhancement of that segment of the robot's posture. This invention reduces the axial and radial dimensions at the joints, increases the range of robot stiffness variation and the robot's degrees of freedom, and adapts to internal surgical environments in confined spaces.

The utility model discloses a quick folding clothes hanger which comprises a wing frame, a supporting frame, a connecting joint piece and a joint locking mechanism used for controlling locking and loosening of joints. The joint locking mechanism is mounted in the connecting joint piece; the inner ends of the wing frames are hinged to the connecting joint pieces respectively and can turn over relative to the connecting joint pieces. The upper end of the supporting frame is fixedly connected with the connecting joint piece, and the lower end of the supporting frame is further connected with a limiting belt used for limiting the unfolding angle of the supporting frame. The joint locking mechanism is used for locking and loosening the connecting joint piece, the wing frame can be automatically locked after being unfolded, when the wing frame needs to be folded, the connecting joint piece is loosened through the joint locking mechanism, then the wing frame can be folded, the supporting frame can form a triangular structure after being unfolded through the limiting belt, and then the wing frame is supported; therefore, the whole structure is simple, folding is simple and fast, and carrying is convenient.

The invention discloses a control rod reactor top connector locking tool, and relates to the technical field of dismounting tools, the control rod reactor top connector locking tool comprises a connecting cylinder, the connecting cylinder comprises a contact end used for clamping a connector and a force application end used for applying force, the side face, close to the contact end, of the connecting cylinder is provided with a receding opening used for receding a cable on the connector, and the side face of the connecting cylinder is provided with a locking device. A limiting groove is formed in the inner side wall of the contact end, the limiting groove corresponds to the protruding edge on the connector, the extending direction of the limiting groove is parallel to the axis of the connecting cylinder, and the limiting groove penetrates through the end face of the contact end; the force application end is provided with a force application structure facilitating force application. According to the control rod reactor top connector locking tool, the body or clothes cannot be contaminated when an operator installs or disassembles a connector, the fastening work is convenient to operate, and the fastening reliability is better.

A joint locking mechanism (1) for holding arms of medical surgical devices with a gear (3) arranged on a pivot axis (2) of a joint and a spring-loaded roller (4, 5) which is in direct operative connection with the gear (3). The joint locking mechanism (1) holds arms of medical surgical devices, which ensures reduced wear on the roller (4, 5) and / or the gear (3) while maintaining the same positioning capability of the joint. The two spring-loaded rollers (4, 5) are in direct operative connection with at least one gear (3), such that in each latched position of the joint, at least one roller (4 or 5) always engages in a latching manner in a tooth gap (12) between two adjacent teeth (13) of at least one gear (3).

The utility model relates to a large-span steel truss arch closure opening temporary locking and fine tuning system which comprises a chord member locking device and a longitudinal fine tuning device, the chord member locking device comprises a plurality of locking assemblies, and each locking assembly comprises two connecting plates used for being installed on an erected chord member and a closure chord member respectively, a splice plate and a bolt. The two connecting plates are respectively connected with the two ends of the splice plate through bolts; the longitudinal fine adjustment device comprises a first pushing mechanism and two counter-force assemblies used for being installed on the erected chord member and the closure chord member respectively, and the first pushing mechanism is connected with the two counter-force assemblies. The adjusting device is simple in structure, reasonable in design, easy to machine, manufacture and install, easy and convenient to use and operate, good in using effect and capable of greatly improving the adjusting efficiency and the adjusting precision of the large-span steel truss arch closure opening.

A tool 100, such as a flex-type joint tool or ratchet tool, includes a locking mechanism to selectively retain the angle of a head 105 relative to a handle 101. The locking mechanism includes a lockin

This invention relates to the field of pipeline connection technology, specifically to a prefabricated direct-buried insulated pipe joint tensioning device, comprising an implementation component, a locking component, a synchronization component, a compensation component, and an auxiliary pressure component. In this invention, the synchronization component ensures that the relative tensioning bands are tensioned synchronously, avoiding wrinkles caused by uneven tension on the left and right sides that could affect the final sealing performance. Furthermore, the elastic potential energy stored in multiple energy-storing springs during locking allows for real-time adjustment of the tension during cooling. The synchronization and compensation components simplify the tensioning and subsequent adjustment steps, ensuring effective tensioning while improving operational convenience. By using multiple circumferentially distributed tensioning bands for locking, a multi-joint fastening method is formed. An auxiliary pressure roller applies a combined force towards the center of the joint sleeve at connection section one and connection section two. Compared to existing single-joint locking methods, this results in more uniform locking and force distribution.