64 results about "Joint lock" patented technology

A robot arm provided with a body unit shifting mechanism that connects a base unit and a body unit so as to be relatively shifted, and joint lock mechanisms that are capable of mechanically securing respective joints is disposed on the body unit, and a robot operation control unit controls to switch between a robot arm operation mode in which the robot arm is operated with one of the joints of the robot arm brought into a free state, and a body unit shift mode in which the body unit is shifted with the joint being brought into a locked state.

A support structure for an electronic visual display device with a pair of vehicle head rest post clamping members, a first and second extension rod, a first and second joint member and an electronic device support plate. The first extension member is L shaped. One end end protrudes into and locks to the headrest post attachment members. The opposite end terminates in a ball shaped member. The second extension rod terminates at each end in a ball shaped members. The support plate has a ball shaped member fixed to its underside. The joint members connect the first and second extension rods to the underside of the support plate. The plate has a clamping member that can retain the visual display device. The joint members clamp on the ball shaped members when joint locking knobs are turned allowing the display to be positioned in a desired location.

A hand tool having an adjustable head comprises a head, a handle, a fastening device and a joint lock mechanism, characterised in that:a bottom side of a concave pivotal portion of the handle has an inclining surface inclining forwardly from a first side of the concave pivotal portion to a second side of the concave pivotal portion; the joint lock mechanism comprises:a first engaging device and a second engaging device; the second engaging device comprises a pull button and a biasing device. The pull button is moveable from an unlocked position at the first side of the concave pivotal portion to a locked position at the second side of the concave pivotal portion. The biasing device is disposed at a front end such that when the pull button is at an unlocked position, a gap is formed between a rear end of the pull button and the bottom side of the concave pivotal portion; when the pull button is at a locked position, a front end of the pull button is adapted to engage the first engaging device.

A hand tool having an adjustable head with joint lock mechanism, comprising a head having a rear end and a handle having a front end pivotally coupled to the rear end of the head, characterised in that: the joint lock mechanism is disposed between the rear end of the head and the front end of the handle, and the joint lock mechanism comprises a first engaging device, a second engaging device, a pull button and a first elastic device. The first engaging device is disposed at the rear end of the head. The handle has a first aperture longitudinally extending at the front end thereof to receive the second engaging device, and has a second aperture formed perpendicularly intersecting the first aperture to receive the pull button. The pull button has a knob portion and an engaging portion beneath the knob portion and the engaging portion extends along the second aperture and engages the second engaging device. The first elastic device is received in the first aperture and abuts against the second engaging device with a forward force such that the front end of the second engaging device is pushed to engage the first engaging device.

The invention relates to an electromagnetic locking device, in particular to a rotary joint locking device of a massage hand, belonging to the technical field of a massage device. The rotary joint locking device comprises a rotary joint mechanism and a locking mechanism for controlling the movement of the rotary joint mechanism. According to the rotary joint locking device, an electromagnetic lock is utilized for pinning a conical pin shaft into a positioning hole on a large gear at a joint to lock the joint. By adopting the locking mode, the locking mode of the existing joint locking mechanism for realizing joint locking by means of friction is changed and the problem of locking failure in the existing locking mechanism is solved.

The invention discloses a surgical mechanical arm joint hydraulic locking power generator. The power generator comprises a supporting mechanism, a transmission mechanism, a thrust mechanism in electric control and a force-generating mechanism, wherein the thrust mechanism contains a lead screw housing; the lead screw housing is fixedly linked with a connection cover of the transmission mechanism, the center axle of the thrust mechanism is vertical to the axle of the transmission mechanism; the force-generating mechanism and the transmission mechanism both have symmetric structures, share the same axle and are fixedly locked through loop nuts arranged on the periphery of the force-generating mechanism, and the supporting mechanism is fixedly linked with the thrust mechanism. The invention provides a hydraulic power source of joint locking to ensure that the mechanical arm can be used as the puncture positioning device and supporting device for the surgery; and the power generator of the invention has the advantages of small volume, compact structure, light weight, large locking torque, convenient operation and maintenance, long service life and the like, and is applicable to joint positioning of the mechanical arm used in the minimally invasive sugery of neurosurgery, chest surgery, orthopeadic surgery, stomatology and the like.

A hand tool having an adjustable head with a joint lock mechanism comprises a head having a rear end and a handle having a front end pivotally coupled to the rear end of the head. The handle has a first aperture longitudinally extending at the front end thereof and a second aperture is formed perpendicularly intersecting the first aperture. The joint lock mechanism is disposed between the rear end of the head and the front end of the handle and further comprises: a first engaging device disposed at the rear end of the head; a second engaging device received in the first aperture, the second engaging device having a front end and a rear end; a pull button received in the second aperture; and a first elastic device received in the first aperture such that the second engaging device is provided with a forward force to engage the front end of the second engaging device with the first engaging device; characterised in that: the push button is formed with a through hole and provided with a first engaging portion being disposed beneath the through hole; the second engaging device passes through the push button and abuts against the first elastic device; the second engaging device is disposed with a second engaging portion and a second elastic device is disposed at the bottom of the push button such that the push button is provided with an upward force to engage the first engaging portion with the second engaging portion.

Improvements in an expandable goal net are disclosed. The expandable goal net is foldable and can be taken from a full size goal to a smaller size that can be easily compacted for transportation. The vertical legs telescope inside each other to essentially reduce the height of the vertical members to essentially half. The horizontal cross posts fold in half thereby to compact the expandable goal net into a vertical folded rectangle. The folding joints are on the horizontal members. joints lock into a horizontal orientation and can be released to allow the joints to fold essentially 180 degrees. Corners use similar hinged joints that allow the horizontal members to bend to essentially 90 degrees. Vertical members have locking slides that telescope to reduce the total length of the vertical members. The expandable goal net is made from aluminum tubes and formed or molded plastic components.

A tweezers type cable connector handling tool features two levers in guiding interaction via respective guiding faces to increase angular lever stiffness. The handling tool features also a central cable receiving channel to hold the extending cable of a connector clamped at the gripping end of the tool and to keep the cable bend radius from being bent more than standards provide for. The connector may be permanently clamped via a ratchet closure, a latching pin lock or a lever rotation joint lock such that the clamped connector may be conveniently handled via the handling tool without need to simultaneously apply a manual damping force. The handling tool may also feature an integrated flash light approximately tangential pointing towards the tool's gripping end. The flash light's housing is integrated in a bending stress communicating fashion while keeping the overall contour of the respective lever continuous.

The invention discloses a tool structure used for rotor tenon joint lock pin assembling. The tool structure comprises an assembling tool base, an assembling tool cover plate, a punching riveting pin, an adjusting bolt and the like. The assembling tool base, the assembling tool cover plate and the rotor structure are matched, and tenon structure axial and radial positioning is achieved; and the punching and riveting pin and the adjusting bolt can be adjusted to be axial with the lock pin and abut against a countersunk head of the lock pin based on positioning of the assembling tool base, and the function of the lock pin punching and riveting base is achieved. By means of the tool, centering and axial positioning of a wheel disc can be achieved, and debugging and measuring workloads in the blade and wheel disc assembling process are reduced; only the rotor wheel disc needs to be rotated, the position of the wheel disc on the tool is adjusted with one freedom degree, alignment of the punching and riveting base and the lock pin is achieved, and adjustment is simple and practical; and the punching and riveting base can abut against the lock pin through the fine adjustment adjusting bolt, and the tool is suitable for locking of the multi-blade structure of a rotor. The tool is simple in structure and easy to achieve.

A pipe joint locking device which prevents accidental loosening of a pipe joint after tightening and with which a sealing property of a seal portion of the pipe joint is not impaired even if a force for rotating a pipe member acts on the pipe member. The device is formed of: a first component member 11 including a mounting portion 21 to be mounted to a joint member 2 having an external thread while prevented from relative rotation, a cover portion 22 to be brought into contact with an outer peripheral face of a cap nut 5 from a lower side, and a coupling portion 23 to be brought into contact with a pipe member 3 from the lower side; and a second component member 12 including a cover portion 31 to be brought into contact with the outer peripheral face of the cap nut 5 from an upper side and a coupling portion 32 to be brought into contact with the pipe member 3 from the upper side. The coupling portion 23 of the first component member 11 and the coupling portion 32 of the second component member 12 are coupled to be fixed to a portion 3a of the pipe member 3 protruding from the cap nut 5.

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 variable arm articulated coordinate measuring machine provided with a magneto-electric locking arm apparatus. The variable arm articulated coordinate measuring machine comprises fix rotatable joints, three segments of measuring arms, a base and a gauge head. The six rotatable joints connected in series through the three segments of the measuring arms form a space open chain structure, and the tail end of the open chain structure is the gauge head of the measuring machine. From the base, a first-order joint and a second-order joint are internally provided with joint locking assemblies, and the joint locking assemblies are electromagnetic joint lock assemblies. According to the invention, in the joint locking assemblies of the articulated coordinate measuring machine based on an electromagnetic technology, additional arrangement of machinery structures is unnecessary, no influences are exerted on the mechanical distribution of the measuring machine, after the joints are locked, the number of sensors for dynamic output is reduced, the rotation of an angle sensor is restricted, the output errors of the angle sensor are reduced, and the measuring precision is improved.

A joint lock comprises a lock body and a joint bar hoop, wherein the lock body accommodates a lock cylinder and a latch which is selectably movable by the lock cylinder from a locked position into a release position and wherein the joint bar hoop comprises a plurality of joint bars pivotally linked to one another, wherein a first end of the joint bar hoop has an elongate closing bar which can be introduced into an introduction opening of the lock body and which can be locked in the lock body by means of the latch. The joint lock is characterized in that the lock body furthermore accommodates a preloading device which preloads the latch into the locking position, with the latch being temporarily movable against the preloading from the locking position into the release position by introduction of the locking bar into the lock body, with the preloading device being adapted to move the latch back into the locking position again when the locking bar is completely introduced into the lock body.

A joint ring, system for lined pipes includes a first pipe and a second pipe joined end-to-end, each pipe having an interior lining covering substantially all of an interior wall of the respective pipe. A first ring is disposed within and substantially flush with the joined end of the first pipe, and a second ring is disposed within and substantially flush with the joined end of the second pipe. The first ring is configured to create a first circumferential pressure seal against the interior wall of the first pipe, and the second ring is configured to create a second circumferential pressure seal against the interior wall of the second pipe. At least one of the first ring and the second ring is configured to create a pipe joint pressure seal against the other ring.

The invention discloses a joint locking device and a crutch chair provided with the joint locking device. The joint locking device comprises a foot rest unit and a joint locking unit. The foot rest unit comprises first foot rods, and second foot rods in pivot joint with the first root rods. The joint locking unit comprises sliding rods slidably arranged at the first root rods by being opposite to the first foot rods and locking blocks which are arranged on the second foot rods and corresponds to the sliding rods. The locking blocks are provided with rotary shafts, sliding surfaces with the rotary shafts as the circular centers and locking surfaces. The distances between the locking surfaces and the rotary shafts are less than the radii of the locking surfaces of the sliding surfaces. The joint locking device and the crutch chair provided with the joint locking device have following beneficial effects: the joint locking unit can located at either locking position and unlocking position; at the locking position, the sliding rods are embedded between locking surfaces and first foot rods such that the first foot rods and the second foot rods are relatively fixed; at the unlocking position, the sliding rods are separated from the sliding surfaces such that the first foot rods can pivotally rotate relative to the second foot rods; and convenience and safety of using the crutch chair are improved.

The invention discloses a lock compression-type ladder-shaped pipe connecting pipe unit, which comprises a connection joint, and a structure with a metal pipe inside thereof. The connection joint is provided with an ejection piece lock, the outer round end of the ejection piece is provided with thread teeth, the metal pipe and the connection joint are connected when the ejection piece reaches the ladder-shaped outer convex rib curved surface of the metal pipe, the ejection piece lock of the connection joint locks the thread teeth of the ejection piece and compresses a sealing gasket between the connection joint and a stainless steel thin-wall pipe so as to seal. The connection is convenient, the sealing is reliable, and the operation is convenient, thereby improving work efficiency, eliminating insecure adhesion and deficiency in reducing inner diameter in a recess, and being not influenced by over temperature. The material of a single pipe unit is saved by 50% and above, thereby relatively overcoming the disadvantage of high accumulative cost due to more materials used for the connecting pipe so as to be favorable for implementation and application.

The invention discloses a lock compression connecting pipe unit, which comprise a connection joint, and a structure with a metal pipe inside thereof. The connection joint is provided with an ejection piece lock, the outer round end of the ejection piece is provided with thread teeth, the metal pipe and the connection joint are connected when the ejection piece reaches the outer convex rib curved surface of the metal pipe, the ejection piece lock of the connection joint locks the thread teeth of the ejection piece to seal. The connection is convenient, the sealing is reliable, and the operation is convenient, thereby improving work efficiency, eliminating insecure adhesion and deficiency in reducing inner diameter in a recess, and being not influenced by over temperature. The material of a single pipe unit is saved by 50% and above, thereby overcoming the disadvantage of high accumulative cost due to more materials used for the connecting pipe so as to be favorable for implementation and application.

The invention discloses a buggy joint locking structure. The buggy joint locking structure comprises a push handlebar handle, a push handlebar upper seat, a push handlebar fixing seat, a pull cord, a spring, a push handlebar locking inner pin, an armrest joint upper seat, an armrest seat, an armrest joint lower seat and an armrest tube, and the push handlebar handle slides in a sliding groove of the push handlebar upper seat and drives the push handlebar locking inner pin to move in the armrest tube, the armrest joint upper seat and the armrest seat through the pull cord, so that the armrest joint upper seat is locked and unlocked to be in the rotation stop state and the rotation state relative to the armrest seat. The buggy joint locking structure is convenient to mount, simple in structure, attractive to use and firm to lock.

The invention discloses an abutting joint locking device for submersible launching and retrieving and an abutting joint locking method. The abutting joint locking device comprises a cylindrical installing base, a pressing ring arranged at the lower part of the installing base, linkage rod mechanisms distributed at four sides of the installing base and a locking mechanism in the installing base; each linkage mechanism comprises a first link rod, a second link rod, and a clamping cylinder; one end of the first link rod is hinged with the installing base, and the other end is hinged with one end of the second link rod; the other end of the second link rod is hinged with the pressing ring, the cylinder body of the clamping cylinder is hinged with the installing base, and the output shaft of the clamping cylinder is hinged with the second link rod; the locking mechanism comprises two moving door plates arranged symmetrically and a driving mechanism for driving two moving door plates to overturn; grooves are arranged on the moving door plates, and two grooves of the moving door plates are combined to form a through hole. A submersible is locked by the abutting joint locking device, so that the submersible is free from unexpected falling during the launching and retrieving, the probability of damaging the submersible is reduced.

The invention discloses a reverse foldable baby carriage. The carriage is characterized by comprising a left front support rod with a left front wheel on the lower end, a right front support rod with a right front wheel on the lower end, a left back support rod with a left back wheel on the lower end, a right back support rod with a right back wheel on the lower end, a left front grab bar, a left back grab bar, a right back grab bar, a left back telescopic rod, a right back telescopic rod, a left front joint lock, a left back joint lock, and a reverse folding control device which is arranged on the upper part of the left back telescopic rod and used for controlling the actions of the left front joint lock and the left back joint lock. The reverse foldable baby carriage conquers the defects of the prior art, and can conveniently change the fore-and-aft direction during the using process and be convenient to use.

The invention discloses a hydraulic locking power mechanism of a mechanical arm joint for a surgery, which comprises a draughting mechanism and a lifting pressure mechanism and also comprises a locking force generator, wherein the draughting mechanism is arranged on the ground and fixedly connected with a piston top rod of the lifting pressure mechanism through a steel wire; a treading plate of the draughting mechanism is connected with the steel wire; the lifting pressure mechanism comprises a cylinder body; a supporting plate of the cylinder body is fixedly connected with a lifting strut; a central shaft of the lifting pressure mechanism and the axes of the lifting strut are both in a vertical direction; the locking force generator and the lifting pressure mechanism have symmetrical structures, are coaxial, and are locked by loop nuts on the periphery of the locking force generator. The hydraulic locking power mechanism of a mechanical arm joint for a surgery provides a joint locking hydraulic power source, guarantees that each joint can be rigidly fixed under the condition without motor driving according to the joint angle after being resolved by kinematics, thereby, mechanical arms can be used as a puncture positioning and supporting device for a surgery.

The invention relates to a multifunctional node lock catch device for monitoring and enhancing structural stability. A sleeve or a sleeve disc, a sensor and a matched supporting element are additionally arranged in a node area formed by converging and connecting a plurality of rod pieces. Two ends of the sleeve are locked on the rod pieces on two sides of the plane joint, the periphery of the sleeve disc is locked on the rod pieces on the periphery of the space joint, and therefore the rod pieces and the sleeve or the sleeve disc are jointly stressed. When the structure begins to be unstable,node deformation is caused to be rapidly increased, after the deformation exceeds a certain range, a sensor arranged below the node is triggered, and an early warning signal is sent out; and meanwhile, the joint and the sleeve or the sleeve disc are integrally stressed, internal force redistribution occurs, and the purpose of preventing or delaying structural instability is achieved. The out-of-plane gap between the sleeve and the rod pieces is reduced, and the out-of-plane rigidity and stability of the structure can be enhanced. By means of the characteristic that the multifunctional joint lock catch is detachable, the multifunctional joint lock catch is convenient to install in a newly-built structure, suitable for being additionally arranged in a reinforcing structure and capable of being used for temporarily enhancing the structural stability in construction.

The invention discloses a power-free lower limb exoskeleton. The invention provides an exoskeleton device which can assist in supporting a lower limb of a human body during walking, does not need external power, and has the characteristics of simple structure, convenience in wearing and use and reliability. The power-free lower limb exoskeleton mainly comprises a supporting seat, a thigh part, a shank part, a foot part and a joint locking device; the supporting seat can support the crotch of a person; the upper end of the thigh part is movably connected with the supporting seat through a rod end bearing, and the lower end of the thigh part is rotationally connected with the upper end of the shank part through a shaft pin; the lower end of the shank part is connected with the foot part in a sliding sleeve mode; the joint locking device is installed on the shank part; and the joint locking device is connected with the foot part through an inhaul cable. When the foot part steps on the ground, the shank part and the thigh part are fixed through the foot part and the joint locking device, the weight of the person is transmitted to the ground through the supporting seat, the thigh part and the shank part, and the lower limb is supported in an auxiliary mode.