38results about How to "Simple joint structure" patented technology

A pipe joint structure includes a plurality of fluid flow path portions, a socket connected to the fluid flow path portions, a connection plate disposed to abut against the socket, a plurality of pipes connected to each other by the connection plate, and a seal member disposed between the plurality of pipes and the socket. The socket includes a connection portion that is located to cover an edge of the connection plate and to fix the plurality of pipes to the plurality of fluid flow path portions. The pipe joint structure can be suitably used for a heat exchanger.

Insertion holes (3c, 4e) into which a connection pipe (9) are inserted are formed from a casing (3) to a cylinder (4). The connection pipe (9) has a flange (9a) formed on the outer periphery at a set distance from the end of the connection pipe (9). With the flange (9a) in contact with the wall outer surface of the casing (3), the end part of the connection pipe (9) is inserted into the insertion holes (3c, 4e). Between the flange (9a) and the wall outer surface of the casing (3), an O-ring (01) is fit so as to surround an internal passage (9f) of the connection pipe (9). Another O-ring (02) is fit between the end part of the connection pipe (9) and the insertion hole (4e) of the cylinder (4).

A line-driven robotic fish including fish head, fish body and tail, Fish tail comprise a tail fin and a support plate assembly, The support plate assembly is composed of a support plate connected in turn from the rear to the rear, at least one support plate II and one support plate III, wherein the front side of the support plate I is fixedly connected with the fish body, the rear side of the support plate III is fixedly connected with the caudal fin, the support plate I and the support plate II are connected with each other, and the adjacent support plates II and the support plate II and thesupport plate III are connected with each other through joint components; And two transmission wires arranged in parallel. The front end of the transmission wire is connected with the fish tail driving mechanism, and the rear end passes through the support plate I and the support plate II in turn and is fixedly connected with the support plate III after passing through the support plate I and thesupport plate II; The two driving wires are made of flexible material and are driven by the fish tail driving mechanism, so as to drive the supporting plates II and III to swing left and right; The thread-driven type robot fish of the invention has simple joint structure and reduces the whole weight of the robot fish while providing its own driving force.

A dead bolt is provided in a lock shell to be drive-jointed with a drive mechanism. Two hooks are symmetrically set along an access direction of dead bolt in the shell. The hooks are hinged with an elastomer therebetween. A draw ring is set to keep mute upon popup under the action of anti-collision mute strip. A strike plate and strike box assembly have a panel with an elongate groove on at least one end thereof. The elongate groove has a set of slots on at least one side thereof. The strike plate is provided with a fastening hole on each end. The fastening hole has a sidewall extending above the plane of the strike plate with a clip bar at a position able to fit into a corresponding slot in the elongate groove. The clip bar joints the corresponding slot to facilitate alignment adjustability.

The invention discloses a self-driven joint, which belongs to the technical field of driving sensing control. The self-driven joint comprises a sleeve, a structural permanent magnet and a magnetic field generating device. The structural permanent magnet is arranged in the sleeve in a way of rotating around the axis of the sleeve. The magnetic field generating device is fixedly arranged outside the sleeve and comprises a magnetostrictive piezoelectric sensor and corresponding electromagnetic coils, wherein the plurality of pairs of corresponding electromagnetic coils with opposite polarities are oppositely arranged on the outer wall of the sleeve; and the magnetostrictive piezoelectric sensor is arranged on the side wall of the sleeve. The self-driven joint has a compact structure and high structural strength and can acquire sensor electric signal conveniently without being driven by any power supply.

The invention discloses a joint of a multi-section folding type remote operation mechanical arm. The joint is characterized in that the centroid of a groove of a fixed pulley is flush with the centroid of a groove of a rim of a joint wheel, and the two centroids are both located in a plane which is tangent to a rim of a driving wheel and perpendicular to the axis of a joint shaft; an output shaft of a motor and the corresponding joint shaft form a quadrature shafting; the motor transmits driving force to the joint shaft through the driving wheel, the fixed pulley, a soft steel wire cable and the joint wheel to realize relative rotation between adjacent section arms; a stay wire of a stay wire sensor which is fixed into the section arms and close to the joint shaft is wound around the outer edge face of the joint shaft, and the extending-out end of the stay wire is fixed relative to the joint shaft. According to the joint, the longitudinal spaces of the section arms are fully utilized, so that the transverse size of the section arms is reduced, the structure is compact, and the rigidity of the mechanical arm is improved; the joint of the mechanical arm is simple and reliable in structure, convenient to detect and easy and convenient to operate because mounting, demounting, replacement and the like of the stay wire sensor can be completed without dismantling a joint module.

The invention discloses a muscle driving simulation robot joint, which belongs to the technical field of the biomimetic robot joint. The invention particularly relates to the muscle driving simulation robot joint which consists of a double-crank sliding block mechanism and is similar to the human muscle confrontation driving characteristic. The muscle driving simulation robot joint has the advantages of flexible action, big working space and simple structure and can be used for simulating the human muscle rigidity nonlinear driving. The muscle driving simulation robot joint comprises a rear crank sliding block mechanism, a front crank sliding block mechanism and a fixed pulley, wherein the rear crank sliding block mechanism and the front crank sliding block mechanism are respectively provided with a fixedly-connected linear guide rail for a rack; the fixedly-connected linear guide rail for the rack is provided with a sliding block; the sliding block is connected with one end of a connecting rod; the rotating center of the rack is provided with the first end of a fixed shaft rotating crank; the other end of the connecting rod is connected with the tail end of the fixed shaft rotating crank; the rotating center of the fixed pulley is provided with the fixed pulley; the fixed pulley is provided with a soft rope; and two ends of the soft rope are respectively connected with the junction of a rear fixed shaft rotating crank and a rear connecting rod as well as the junction of a front fixed shaft rotating crank and a front connecting rod.

The invention relates to an eight-degree-of-freedom local force feedback bionic upper limb exoskeleton master manipulator, which is characterized in that a free force feedback hand component is mounted on a palmar flexion and dorsal flexion joint component, and a ulnar flexion and flexion joint component is connected with a one-degree-of-freedom forearm convolution component; one end of the one-degree-of-freedom elbow joint assembly is connected with the one-degree-of-freedom forearm convolution component; the other end is connected with one end of a one-degree-of-freedom shoulder flexion andextension assembly, the other end of the one-degree-of-freedom shoulder flexion and extension assembly is connected with one end of a one-degree-of-freedom shoulder convolution assembly through a shoulder adjusting plate A; the other end of the one-degree-of-freedom shoulder rotating assembly is connected with one end of a one-degree-of-freedom shoulder abduction and adduction assembly through a shoulder adjusting plate B, and the other end of the one-degree-of-freedom shoulder abduction and adduction assembly is installed on a back adjusting plate; and an upper arm bandage assembly is mountedat the joint of a one-degree-of-freedom elbow joint assembly and the one-degree-of-freedom shoulder flexion and extension assembly. The manipulator has the characteristics of compact structure, lightweight, high flexibility, high adaptability and the like.

The invention relates to a lightweight bionic-flexible-exoskeleton-type upper limb booster robot with multi degrees of freedom. The lightweight bionic-flexible-exoskeleton-type upper limb booster robot with multi degrees of freedom comprises a carpal flexion/extension motion assembly, a forearm internal-rotation/external-rotation motion assembly and an elbow flexion and extension motion assembly which are sequentially connected; the elbow flexion and extension motion assembly and an upper arm fixing assembly are both connected with a glenohumeral joint motion assembly; the glenohumeral joint motion assembly is connected with a scapular band motion assembly; the scapular band motion assembly is connected with a lifting assembly; lariat driving units are respectively connected with the various motion assemblies; and a wheelchair base assembly is used for supporting the whole upper limb booster robot. The lightweight bionic-flexible-exoskeleton-type upper limb booster robot with multi degrees of freedom is capable of effectively avoiding singularity and interference of man-machine shoulder movements so as to expand range of shoulder movement, reproduce complex motion functions of thehuman shoulder, and reduce shoulder complications. The lightweight bionic-flexible-exoskeleton-type upper limb booster robot with multi degrees of freedom is mainly used for daily motion assistance and rehabilitation training of upper limbs of patients with upper limb motor dysfunction due to stroke, hemiplegia and the like, thereby improving cognitive ability and participation of the patients during training so as to benefit remodeling of brain functions.

The invention discloses a structure of rope-driven mechanical arm rotation joint. The structure comprises a synchronous belt wheel shaft, a synchronous belt, an angle sensor, an arm joint bearing end plate, a deep groove ball bearing, an angular contact ball bearing and a mechanical arm connection clamping block, wherein the mechanical arm connection clamping block is provided with a connection hole and a steel wire rope through hole; the synchronous belt wheel shaft comprises a belt wheel end and a shaft end from top to bottom; a sensor containing hole, a sensor output shaft connection hole and a cross recessed countersunk head screw inner threaded hole are arranged along the axis of the synchronous belt wheel shaft in sequence; and the inner rings of the deep groove ball bearing and the angular contact ball bearing are respectively fixed at the upper part and the lower part of the belt wheel end through transition fit. According to the structure, the movement of the joint in a relatively large range can be realized; by adopting a detachable structure, the maintenance and carrying are convenient, the structure is simplified, the running efficiency of the joint is improved and the movement coupling of the joint is avoided; the problem that only stretching can be carried out and compression cannot be carried out in the rope driving process, the structure is simple, and stroke range is large, so that the structure is particularly suitable for being installed on the disabled and aged helping facilities such as wheelchairs and care beds.

The invention relates to a steel pipe joint for scaffolding, which has a lower chuck and an upper chuck. Both the lower chuck and the upper chuck are composed of two symmetrically arranged semicircular wrappings, and one end of the wrapping is movable through a pin shaft. connection, the other end is provided with a flanged joint, and the flanged joint is provided with a threaded hole, and a bolt is connected in the threaded hole; the lower chuck and the upper chuck are connected by a line spacing adjustment rod, wherein the upper chuck A tooth-shaped positioning block is arranged between the symmetrically arranged flanging joints, and the tooth-shaped positioning block is provided with a tooth-shaped surface, and a tooth-shaped adjusting surface matching the tooth-shaped surface is provided on the side of the line distance adjusting rod corresponding to the tooth-shaped surface. This kind of scaffolding steel pipe joint has a simple structure and consists of two chucks. The chucks are adjusted up and down through the interconnected line spacing adjustment rods, so that different parts of the two butt steel pipes can be connected to ensure the stability of the connection between the steel pipes. Improve the security effect.

The invention discloses a decoupling variable-rigidity joint suitable for a super-redundant mechanical arm, belongs to the field of mechanical arms, and relates to a decoupling variable-rigidity joint suitable for the super-redundant mechanical arm. The joint is composed of a hollow connecting rod, a fixing disc, a hollow organ type variable rigidity driver, a sleeve and a universal joint mechanism. Liquid metal is arranged inside a driver body of the hollow organ type variable rigidity driver, and a quick plug connector is installed at the bottom of the driver body. Movement of each joint is controlled by three independent hollow organ type variable rigidity driver bodies, movement of the joints is not coupled, and decoupling of movement of a mechanical arm is achieved. The flow of the liquid metal in the driver body is controlled, the deformation of the driver body is controlled, and control over pitching and yawing of the joint is achieved. The temperature of the liquid metal inside the hollow organ type variable-rigidity driver body is controlled, so that the liquid metal is changed into a solid state, corresponding control joints are fixed, and the rigidity of the snakelike mechanical arm is improved.

The invention discloses a compact and firm multi-degree-of-freedom bionic joint which comprises a first joint piece, a second joint piece, X-direction connecting fibers and Y-direction connecting fibers; and the end of the first joint piece is a first curve face, and the end of the second joint piece is a second curve face matched with the first curve face. The compact and firm multi-degree-of-freedom bionic joint has the beneficial effects that firstly, the compact and firm multi-degree-of-freedom bionic joint is simple in joint structure, small in size, light in weight, high in strength andthe like, the impact resistance is high, and the stress of a connecting piece when the joint is bent is reduced; and secondly, the compact and firm multi-degree-of-freedom bionic joint is small in gapand high in motion precision under the stress condition, meanwhile, the whole bionic joint is convenient to manufacture through an automatic process, the manufacturing efficiency is improved, and themanufacturing cost is reduced.

A USB connector structure, configured with a combination structure of a base, a main structure, a plural of pins and a fixing structure, to enable said plural pins to be configured on the conducting pads without soldering process and to provide a convenient assembly by firmly hooking and fastening both the main structure and the fixing structure over the base. And, the present invention can be applied in various USB connectors or similar connecting structure.

The invention discloses a compact and firm single-degree-of-freedom bionic joint and a manufacturing and driving method thereof. The compact and firm single-degree-of-freedom bionic joint comprises atleast one first joint part, a second joint part and a connecting fiber, wherein the end of the first joint part is a convex curved surface, and the end of the second joint part is a concave curved surface matched with the convex curved surface. The compact and firm single-degree-of-freedom bionic joint has the beneficial effects that firstly, the compact and firm single-degree-of-freedom bionic joint is simple in joint structure, small in size, light in weight, high in strength and the like, the impact resistance is high, and the stress of a connecting piece is reduced when the joint is bent;and secondly, the compact and firm single-degree-of-freedom bionic joint is small in gap and high in motion precision under the stress condition, meanwhile, the whole bionic joint is convenient to manufacture through an automatic process, the manufacturing efficiency is improved, and the manufacturing cost is reduced.

The invention provides a multi-strand superconducting metal wire joint structure, which comprises a wiring post, a positioning knob, a superconducting wire, a fixed knob and a wiring frame, wherein the wiring post is of a stepped rod-shaped structure; one step of the wiring post is provided with a groove; the superconducting wire is arranged in the groove; the wiring post is arranged on the wiringframe in a penetrating manner; the positioning knob and the fixed knob are arranged at the two ends of the wiring post respectively; the fixed knob is used for fixing the wiring post on the wiring frame. According to the multi-strand superconducting metal wire joint structure provided by the invention, multiple strands of superconducting wires or non-superconducting wires can be connected, the joint structure can be used as a heat sink to prevent the superconducting wire from quench caused by heating of the non-superconducting wire, the joint structure has a simple structure and can adapt tovarious superconducting materials at the same time, the joint is detachable, the superconducting metal wire of the joint part is not damaged in the joint manufacturing process, and the joint structurecan be repeatedly used.