63 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.

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.

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 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 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 a bendable ureteral sheath, which comprises a dilating tube, a sheath tube, a sheath tube joint, a fixed joint, a traction steel wire, a locking mechanism, a negative suction joint, and an adjustment device. It consists of a curved section and a soft bendable section that can be bent in two directions. The semi-soft non-bendable section is connected to one end of the sheath tube joint. The expansion tube passes through the sheath tube and the sheath tube joint. One end of the expansion tube is connected to a fixed The joints are connected, and the fixed joint is connected with the sheath tube joint through a locking mechanism for locking the combination of the sheath tube and the expansion tube, and a traction steel wire is passed through the sheath tube. The present invention can not only keep the combined locking of the sheath tube/dilator tube during dilation, but also ensure the locking of the flexible ureteroscope during operation by adopting the rotation locking method, especially when it is used in "flexible ureteroscope holmium laser lithotripsy", it can ensure that the flexible ureteroscope The holmium laser locks the position to prevent damage to the kidney during surgery.

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 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.