32 results about "Locking joints" patented technology

Disclosed herein is a device for assisting and locking joints, having a supporting structure in the joint, at least one tensioning system fixed to the supporting structure and at least one artificial tendon connected to the tensioning system. The tension system interacts with the locking system in order to assist the user's joints when needed.

The invention discloses a deployable joint locking control mechanism which can be used for a common single-freedom-degree rotary joint. The deployable joint locking control mechanism is composed of a joint, a joint upper arm (1), a joint forearm (2), a joint rotating shaft (3), a joint locking groove (4), a joint locking control block (5), a lead screw (6), a guide rail (7) and a lead screw driver (8). The deployable joint locking control mechanism is used for locking rotation of the joint forearm around the joint rotating shaft relative to the joint upper arm through insertion fit between a joint locking pin and a locking groove located in the forearm; transmission of the lead screw and the guide rail is used, a special shape of the locking groove is used in a matched manner, and the function of locking at any joint corner position is achieved. According to the deployable joint locking control mechanism, the locking force which is much larger than that capable of being provided by a friction type clutch device is provided under the same design size scale; meanwhile, continuous rather than discrete joint corner locking position can be provided; and meanwhile, the deployable joint locking control mechanism is quiet energy-saving, small, exquisite and compact.

The invention provides a redundant-degree-of-freedom mechanical arm path planning method and device and engineering machinery, and relates to the technical field of mechanical arm path planning. The redundant-degree-of-freedom mechanical arm path planning method comprises the steps of determining a target pose to be reached by an execution tail end of a mechanical arm; determining joints which can keep the initial angles when the execution tail end of the mechanical arm is located at the target pose in all joints of the mechanical arm; determining path data of the execution tail end of the mechanical arm reaching the target pose based on the determined joints, specifically, the path data comprise the target angles of all the joints of the mechanical arm, and the target angle of at least one joint is equal to the initial angle of the joint; and determining the motion paths of the mechanical arm according to the path data, and making the motion path meeting the preset rule in the motion paths as the final motion path of the mechanical arm. According to the redundant-degree-of-freedom mechanical arm path planning method, the motion path of the mechanical arm is planned based on the locked joints, and thus the shaking of the execution tail end of the mechanical arm in the motion process can be effectively reduced.

The invention provides a self-locking joint used for the connection of space truss structures. The bullet joint is inserted into the shelter, the trapezoidal protrusion of the bullet joint matches the trapezoidal through hole on the bottom surface of the shelter, and the arc of the bullet joint The shaped bullet is first compressed and then bounced, and finally locked in the square holes on the left and right sides of the shelter to complete self-locking. When it is necessary to unlock, push the two cross buttons that press the spring button until the actuating block of the cross button squeezes The arc-shaped bullet is retracted into the bullet joint, and the unlocking can be completed, and the truss member connected with the bullet joint is taken away. The invention can change the direction of the rotatable joint, and can further flexibly adjust the installation direction of the rod; it can reduce the operation accuracy and difficulty required by the robot, and can complete the automatic locking of the two parts, and the unlocking process can be completed through the spring button structure. The functions of automatic locking and disassembly separation during the installation process are completed, which is convenient for the robot to operate.

The invention belongs to the related technical field of shield tunnel lining structure, and discloses a segment structure with combined mortise and tenon and female locking joint connection components. The segment structure includes a plurality of shield segments and a plurality of combined Mortise tenon and female locking joint connection assembly, the segment structure is cylindrical, and the shield segment is arc-shaped, which includes two connected rectangular ends and two arc-shaped ends, and the two rectangular ends are along the segment structure The two arc-shaped ends are arranged along the axial direction of the segment structure; the opposite two arc-shaped ends are respectively formed with grooves and protrusions, and the protrusions are accommodated in the grooves; the combined mortise and tenon and female head The locking joint connection assembly includes a mortise and tenon joint connection and a female lock push joint connection; the mortise and tenon joint connection connects two opposite rectangular ends, and the female lock push joint connection connects two opposite arcs Shaped end, thereby realizing the circumferential and axial connection of two adjacent shield segments. The invention improves waterproof performance, shear performance and joint toughness.

The invention discloses a method for installing a self-locking joint. The self-locking joint comprises: an upper shell, a lower shell, a joint body and a blocking piece. The upper end of the joint body is provided with an elastic clip, and the upper shell is provided with a pressing part and a wire. There is a gap between the upper shell and the pressing part, and the installation steps of the self-locking joint are as follows: Step a: Connect the cable at the rear end of the joint body; Step b: Apply downward pressure on the joint body to lock the joint The body is pressed into the lower case; step c: install the baffle to the lower end of the upper case; step d: pass the cable through the cable hole, and move the upper case to the top of the lower case along the cable; step e: apply force to the upper case and / or the lower case to drive them closer to each other, fasten the upper case and the lower case, install the stopper in the upper case, use the stopper The sheet is used to cover the gap on the upper shell to achieve the purpose of sealing the self-locking joint.

The invention discloses a ball-joint pneumatic locking type variable stiffness soft arm skeleton, which belongs to the field of mechanical arms and comprises several sequentially connected rotating components, the rotating components including an outer shaft joint and an inner shaft joint, and the outer shaft joint It is connected with the inner shaft joint through a ball joint. The ball joint includes aeroelastic parts, two outer shaft joint locking parts and two inner shaft joint locking parts. Through the contraction of the aeroelastic parts, the locking The pressure of the parts, so that the stiffness of the joints is changed, which solves the problem that the software arm is difficult to shape in the prior art.

The invention relates to the technical field of fluid pipeline connection, in particular to a large-diameter dry-type quick connector, which includes a male connector and a female connector that cooperate with each other; the male connector includes a male connector housing assembly, a male connector fixed valve core assembly and a male connector. The joint moves the spool assembly; the female joint includes a female joint housing assembly, a female joint spool assembly and a female joint locking assembly; the fluid pipeline connection device adopts a flat head structure and a roller curved groove type quick locking docking method to realize Accurate and fast docking is achieved based on the respective sealing properties of the male / female joints, effectively realizing the internal flow of fluid in the flow channel set between the docking structures, simplifying the docking and unlocking operations, eliminating fluid leakage, improving the flow coefficient, and improving The design purpose of impurity resistance and field operation efficiency. The invention has the advantages of reasonable design, strong sealing performance, small internal fluid resistance, and each internal sealing member does not always contact the flowing working medium.

The present application relates to the field of acromioclavicular joint reduction therapy, in particular to a device for repairing acromioclavicular joints. The key points of the technical solution are: comprising a first loop made of an elastic material and a second loop made of an elastic material, There is at least one deformation hole on the first tab part and the second tab part; a tail line for making the two move toward each other is passed between the first tab part and the second tab part; The compression-deformability of the first tab piece allows the first tab piece to compress in size to pass through the openings in the clavicle and coracoid process, such that the openings are smaller in size than would be required for the metal plate , achieved the purpose of reducing the amount of bone removed during the reduction treatment operation to reduce iatrogenic damage.

The invention discloses a variable measurement space method of an articulated coordinate measuring machine based on a tooth-embedded joint. There will be great redundancy in the measurement space of the existing articulated coordinate measuring machine, but the accuracy will be lost. The present invention connects adjacent articulated arms through tooth-embedded joints to build an articulated coordinate measuring machine based on tooth-embedded joints. The present invention can effectively realize the locking and free rotation of the joints of the articulated coordinate measuring machine by realizing the fit and separation of the movable claw plate and the fixed claw plate; Compared with the different measurement spaces of the joint-type coordinate measuring machine based on the jaw-type joint under the locking scheme of the jaw-type joint at different positions, the appropriate measurement space of the joint-type coordinate measuring machine is selected to reduce the waste of space and improve the measurement accuracy.

Provided is a buckle-type rapidly locking joint for an anesthetic duct. The buckle-type rapidly locking joint comprises a bottom board. One end of the bottom board is fixed with a connection seat and the other end thereof is provided with a fixing seat. The surface of the bottom board is provided with a hose. The connection seat is provided with an insert communicating with the hose. The insert allows the anesthetic duct to insert into the hose. The joint used for being connected with a syringe is installed on the fixing seat. The fixing seat is internally provided with a channel communicating with the joint and the hose. The buckle-type rapidly locking joint for the anesthetic duct further comprises a press board above the bottom board. One end of the press board is hinged onto the bottom board or the fixing seat. A clamping seat is arranged on the bottom board or the fixing seat. The press board is fixed with the clamping seat in a snap-joint manner or away from the clamping assembly. When the press board is fixed with the clamping seat in the snap-joint manner, the anesthetic duct fixed in the hose is clamped by the press board and the bottom board. The buckle-type rapidly locking joint for the anesthetic duct has the following beneficial effects: the anesthetic duct and the fixing joint can be rapidly in butt joint; operation is performed more conveniently; better stable fixing effect is obtained; and the anesthetic duct is not likely to fall down.

The invention discloses a Lisfranc injury cross-joint locking bone plate, which comprises a cross-joint bone plate and a stabilizing mechanism. The cross-joint bone plate is provided with a plurality of locking holes, and the positions of the corresponding locking holes on the cross-articular bone plate are all opened. The limiting ring groove, the stabilizing mechanism used for the stable and accurate nailing of the screw is inserted into the corresponding limiting ring groove. The present invention opens a limiting ring groove on the outside of each locking hole, and through The stabilizing mechanism with well-adjusted insertion angle makes the subsequent nailing angle of the screw more accurate, and avoids problems such as shaking when the screw is inserted because the inner diameter of the locking hole is larger than the diameter of the screw trunk, so as to achieve precise fixation.

The invention discloses an electric locking and rotating joint for an auxiliary arm for surgical operation, which is characterized in that the electric locking and rotating joint comprises a joint rotating mechanism and a joint locking mechanism, the joint rotating mechanism is positioned at the upper part of the joint locking mechanism, wherein the joint rotating mechanism comprises a joint rotary shaft, a joint bearing cap, a joint bearing seat and a joint chassis, the joint locking mechanism comprises a locking outer sleeve, a friction ring, a trapezoidal nut, a lead screw shaft and a motor, an output shaft of the motor drives the lead screw shaft to move, the lead screw shaft drives the trapezoidal nut which is in threaded connection with the lead screw shaft to move, and the trapezoidal nut is circumferentially fixed by the locking outer sleeve arranged on the outside of the trapezoidal nut and can only move up and down, thereby driving the friction ring arranged at the upper part to move up and down; and friction force is produced when the friction ring is in contact with the joint chassis, the friction force is eliminated when the friction ring and the joint chassis are separated, and the joint rotary shaft is in threaded connection with the joint chassis, thereby realizing locking or unlocking of the joint rotary shaft. The electric locking and rotating joint has the advantages of compact structure, convenient operation and maintenance, reliable locking and unlocking and excellent performances.