240 results about "Pivot joint" patented technology

The invention relates to a spectacle temple side shield structure, wherein the two sides of the spectacle frame and the pivot joints of the temples pivotally connect to each other. Each of the temples has a detent seat corresponding with the pivot joint. The side shield device has a shielding piece arranged thereon and a detent unit provided on an inner edge of a top end of the shielding piece, wherein the detent unit has grooves correspondingly arranged on the upper and lower parts thereof, an elastic part formed between the upper and lower two corresponding grooves, and a detent protrusion protruding from the elastic part, which is latch-locked and fixed with the detent seat corresponding to each other. Therefore, users can choose different shapes and color patterns of the side shields according to their own preferences to assemble and fix them on both sides of the spectacle frame.

The present invention relates to a detachable side shield structure of spectacles, which mainly a side shield unit, arranged at the pivot joint between the temple and the frame, and includes a shielding portion for shielding, a blocking bar protruded from an outer edge, and a snap portion provided on an inner edge of a top surface of the shielding portion. The snap portion has a detachable embedded portion arranged on an inner side thereof, which can correspond to a catching portion at the pivot joint of the temple and engage with each other. The temple is limited through the blocking bar and the snap portion, and the detachable embedded portion of the snap portion and the catching portion on the pivot joint form a detachable latch positioning structure, so that the side shield unit can be firmly coupled to the temple and can be disassembled and assembled as needed.

The invention provides a treatment device capable of automatically and accurately adjusting a body position. The treatment device comprises a treatment pad body, a body position adjusting mechanism, a pressure sensor and a controller. The treatment pad body is provided with four body units which are arranged in a parallel array mode. The body position adjusting mechanism comprises a supporting frame; the connecting frame is provided with four body areas, the four body units of the treatment pad body are fixedly installed above the four body areas of the connecting frame respectively, the four body areas of the connecting frame are in pivot joint through pivots, and the supporting frame is in pivot joint with the four body areas of the connecting frame through pivots; the electric telescopic rod is mounted on the supporting frame through a base; the connecting rod is rotatably mounted on the supporting frame, and a connecting piece pivoted with the electric telescopic rod is arranged on the connecting rod; one end of the boosting rod is fixedly connected with the connecting rod, and the other end abuts against the four body areas of the connecting frame. The pressure sensor is arranged on the treatment pad body. The controller is electrically connected with the pressure sensor and the electric telescopic rod of the body position adjusting mechanism.

Earmuffs with a joint are provided to create a biased pressure distribution about a perimeter of the cup. The earmuffs may include a pivot joint. The pressure distribution creates a wedging pressure (e.g., on a top edge) on the cups that hold the earmuffs on the user's head, for example, when the user rotates the headband behind the head. The bias pressure is also used to adjust the seal formed between the pad and the user's head. Adjustments to the moment created by separating the joints from the cup's apex enable a user to selectively adjust the seal according to the user's preference. A cam is added to the headband to change the hoop stress distributed at the joints and further adjust the compressive forces generated to hold the earmuffs against the user's head.

The shearing mechanism comprises a first shear body, a second shear body, a first connecting rod piece, a second connecting rod piece and a first limiting piece, the first shear body and the second shear body are in pivot joint through a first pivot joint shaft, and the first connecting rod piece and the second connecting rod piece are each provided with a pivot joint end and a handle end; the pivot joint ends of the first connecting rod piece and the second connecting rod piece are in pivot joint through a second pivot joint shaft, the middle of the first connecting rod piece is in pivot joint with the first scissor body, and the middle of the second connecting rod piece is in pivot joint with the second scissor body to form a four-connecting-rod structure. When the first connecting rod piece and the second connecting rod piece rotate relatively, the first scissor body and the second scissor body can be driven to rotate relatively to be opened and closed, and the second pivoting shaft can move along the first limiting groove. The structure can limit the movement condition of the connecting rod, so that the opening and closing amplitude of the two scissor bodies is well limited, excessive opening or closing of the scissor bodies is avoided, and use is convenient.

Disclosed are reducer instrument locking mechanisms. They can be located near a center pivot joint of the reducer, thereby eliminating a ratchet at the reducer proximal end. The locking mechanisms can include a pawl or latch that travels with one handle from an open position to a closed position. The pawl can fall into a groove formed in an opposing handle such that handles of the reducer can be locked relative to one another, at least with regard to movement of the handles away from one another. When falling into the groove, the pawl can create an auditory and / or tactile indication that a sufficient amount of rod reduction has been achieved to allow for set screw insertion. After set screw insertion, the reducer locking mechanisms can be released to clear it of the groove and allow the reducer to return to its open position.

A centraliser comprises arm assemblies pivotally connected between first and second support members. Each arm assembly comprises a first arm pivotally attached to one of the first and second support members by a first pivot joint having a first pivot axis, a second arm assembly pivotally attached to the other one of the first and second support members by a second pivot joint having a second pivot axis, the first and second arms pivotally attached together via a third pivot joint having a third pivot axis. The first arm comprises a fork section extending around opposite sides of the respective first or second support member to position the first pivot axis radially within an outer diameter of a mandrel on which one or both support members move.

A beam anchor includes first and second arm assemblies, each comprising a torque arm having a jaw portion, and a slotted arm having slotted portions containing an arm slot. The jaw portions oppose each other, the slotted portions are side-by-side, and the torque arm and slotted arm of the first and second arm assemblies are coupled to a pair of braces respectively at a pair of pivot joints. The first arm assembly includes a locking mechanism, movable between a locked position locking the torque arm to its slotted arm, and an unlocked position in which the torque arm is freely pivotable. A connector pin extends into the arm slots, and a load on the connector pin causes the slotted arms to pivot away from each other, and the torque arms pivot to toward each other until the jaw portions engage a web of a beam.

A framework structure of a folding sunshade comprises an upper short rib part and a lower main rib part, the lower main rib part comprises a first rib part, a second rib part and a third rib part, the inner end of the upper short rib part is pivoted to an upper umbrella nest, the outer end of the upper short rib part is hinged to the middle of the first rib part, and the inner end of the first rib part is pivoted to a lower umbrella nest; the inner end of the second bone piece is hinged to the middle position between the outer end of the first bone piece and the connecting point of the upper short bone piece, the outer end of the second bone piece is hinged to the inner end of the third bone piece, and connecting bone pieces are further arranged between the upper short bone piece and the lower main bone piece and comprise the first connecting bone piece and the second connecting bone piece. The inner end of the first connecting bone piece is hinged to the side, close to the outer end, of the middle of the upper short bone piece, the outer end of the first connecting bone piece is hinged to the inner end of the second connecting bone piece, the outer end of the second connecting bone piece is hinged to the side, close to the inner end, of the middle of the third bone piece, and the outer end of the first bone piece is hinged to the side, close to the inner end, of the middle of the second connecting bone piece. The connecting piece is simple and reasonable in structure, firm and stable in connection, good in tensile strength, not prone to deformation caused by external force influence and suitable for outdoor use.

The invention provides a rapid taking and clamping mechanism which is suitable for rapid clamping operation of workpieces in a narrow space area, small in occupied space and convenient to reasonably arrange. The device comprises a mounting seat which comprises an upper mounting plate; the first clamping jaw assembly comprises a first clamping jaw; the second clamping jaw assembly comprises a second clamping jaw; a first telescopic cylinder; and a rotation driving mechanism; a first clamping jaw assembly and a second clamping jaw assembly which are arranged in a linear sliding mode are installed on the two sides of the upper installation plate in the length direction correspondingly, and the two ends of a pair of rotating output rods of the rotating driving mechanism are in pivot joint with the first clamping jaw assembly and the second clamping jaw assembly at the corresponding positions through transmission rods correspondingly. The first clamping jaw assembly is further fixedly provided with a first telescopic air cylinder, the output end of the first telescopic air cylinder is fixedly connected with a first clamping jaw, the first telescopic air cylinder drives the first clamping jaw to retract inwards and protrude outwards, and when the first clamping jaw retracts inwards, the clamping end of the first clamping jaw is lower than the inner end face of a workpiece to be clamped.

A system can include a top drive with a quill with a pivot joint, with an upper portion pivotably coupled to a lower portion via a pivot, coupled between the quill and a running tool, wherein rotation of the lower portion relative to the upper portion pivots the running tool about the pivot. A method for running a tubular string by moving a tubular along a catwalk, coupling a pivot joint between a running tool and a quill, and pivoting the running tool about the pivot by pivoting the lower portion relative to the upper portion.

The bidirectional tensioner with the damping compensation function comprises a pivot structure, the pivot structure comprises an end cover, a spiral compression spring, a pivot and a friction ring, the spiral compression spring comprises a part A and a part B, the end cover comprises a conical transition part and a cylindrical part, a transition conical face is arranged on the inner side of the conical transition part, and a protruding ring is arranged at the bottom of the cylindrical part. A pivot connecting face and a spring abutting face are arranged on the protruding ring, the tensioning arm is hinged to the base through a pivot, and a friction ring is arranged between the tensioning arm and the base. The spiral compression spring is arranged between the pivot and the end cover in a sleeved mode, the end cover is in interference fit with the pivot through the pivot connecting face, the A portion abuts against the friction ring, the B portion abuts against the spring abutting face, the spiral compression spring is kept in a compressed state all the time, and the outer side of the B portion makes contact with the friction face of the end cover. Along with the increase of the abrasion loss of the friction ring, the spiral compression spring automatically extends, the axial friction force of the spring is reduced through the form change of the spring before and after abrasion, and damping force loss caused by abrasion is automatically compensated.

Systems and methods are provided for managing and reducing the severity or impact of a collision involving an apparatus secured to a table associated with a medical imaging and / or therapeutic gantry. Example systems are provided in which an apparatus is secured to the table such that a distal region of the apparatus extends beyond a longitudinal end of the table. A pivot joint associated with the apparatus is provided such that when a collision between the distal region of the apparatus and an object occurs due to motion of the table, the resulting force causes the apparatus to rotate relative to the pivot joint, thus passively accommodating the applied force and preventing, or reducing the likelihood of, mechanical buckling of the apparatus in the presence of the force. In some example embodiments, the apparatus is configured to rotate and / or translate as a result of the force applied during the collision.

A kind of cable hook, two sides of its buckle seat are provided with pivot joint and cannula, the cannula has a insertion hole, the cannula is provided with a hook-shaped tube sleeve portion, a cable is placed in the hook-shaped tube, the bottom end of the cable is inserted into the insertion hole, a buckle head is combined at the free end of the hook-shaped tube, the free end of the cable is combined with the buckle head, the radially overlapping parts of the sleeve portion, the cannula and the cable are reduced in diameter and combined, a lever element is pivoted at the pivot joint, the top end of the lever element can be selectively hooked on the buckle head;The structure of the hook-shaped tube and cable can achieve lightweight, and when the hook-shaped tube is deformed under force, the cable can provide support for the hook-shaped tube, so that the invention has strength and safety while achieving lightweight structure.

Jaw assemblies for a surgical stapler are provided. The jaw assemblies comprise a first jaw having a first clamping surface and a plurality of staples disposed therein and second jaw assembly having a second clamping surface. The jaw assemblies can be actuated from a closed configuration in which the first clamping surface contacts or is adjacent to the second clamping surface to an open configuration in which the second jaw is pivoted away from the first jaw to a stapling position in which the second clamping surface is parallel to the first clamping surface and spaced apart from the first clamping surface. A pivoting link or sliding pivot joint can couple the second jaw to the first jaw to facilitate motion between the closed position, the open position, and the stapling position.

The utility model provides a large-jaw clamp structure which is a clamp and comprises a first grab handle, a shaft rod, a limiting clamp piece, a movable clamp piece, an elastic piece, a second grab handle, an unlocking piece, a connecting rod piece and a screw rod. A shaft penetrating hole is formed in the side wall of the supporting head of the first grab handle; the shaft rod penetrates through the shaft penetrating hole; the assembly part of the limiting clamp piece is attached to and assembled on the shaft rod outside the side wall, and a limiting clamp arm extends and is provided with a first chuck; a movable plier head part of the movable plier piece is arranged on the other side of the side wall, one end of the movable plier head part extends to form a movable plier arm which is provided with a second chuck, and the other end of the movable plier head part is provided with a pivoting part pivoted with the supporting head part and a first pivoting head pivoted with the second grab handle; according to the overall structure, the size of the jaw of the clamp is adjusted within the length range of the shaft rod, and the clamping and locking capacity range of the clamp on a target workpiece can be remarkably widened.

The utility model relates to the technical field of hairpins, and particularly discloses a spring hidden type decorative hairpin which comprises a first hairpin body, a second hairpin body, a shaft rod, a spring body and a wrapping assembly, the first hairpin body and the second hairpin body are respectively provided with a pivot joint son base and a pivot joint mother base, the spring body is arranged between the pivot joint son base and the pivot joint mother base, and the wrapping assembly is arranged on the shaft rod. The shaft rod sequentially penetrates through the pivoting mother seat, the spring body and the pivoting son seat to enable the first clamp body and the second clamp body to be combined in a pivoting mode, two end feet of the spring body abut against the first clamp body and the second clamp body respectively, the wrapping assembly comprises a first wrapping piece, a second wrapping piece and a decorating piece, the first wrapping piece and the second wrapping piece are mutually pivoted and arranged on the spring body in a sleeving mode, and the decorating piece is arranged on the first wrapping piece and the second wrapping piece. Decorative parts are arranged on the first covering part and the second covering part. The spring exposed type hairpin solves the problems that the spring exposed type hairpin clamps and pulls hair and stabs fingers, improves attractiveness of the hairpin, and effectively reduces production cost.

The invention discloses a quick release structure of an intelligent closestool cover plate, which comprises a cover plate and a rear shell, a rotating shaft combination part is arranged at the side edge position of the rear end of the cover plate, the rotating shaft combination part is provided with a pivoting hole, and the rear shell is provided with a rotating shaft extending towards the side edge. A mounting notch is formed in the portion, facing the inner side, of the side wall of the rear end of the rotating shaft combination part so that an inner cavity of the pivot joint hole can be communicated with the outside through the mounting notch, the limiting part comprises a shaft sleeve, the shaft sleeve can be inserted into the pivot joint hole in an axial sliding mode, and the shaft sleeve is connected with the rotating shaft combination part. The shaft sleeve can only slide into and out of the pivoting hole from the inner side of the pivoting hole, the mounting notch is gradually opened when the shaft sleeve slides towards the outer side, the mounting notch is gradually closed when the shaft sleeve slides towards the inner side, and in the mounting process, the end of the rotating shaft enters the pivoting hole along the mounting notch, so that the rotating shaft can rotate in the pivoting hole. The shaft sleeve sleeves the end part of the rotating shaft when the shaft sleeve slides towards the inner side to close the mounting notch, and the shaft sleeve is separated from the end part of the rotating shaft when the shaft sleeve slides towards the outer side to open the mounting notch during disassembly. Therefore, the whole quick-release structure is few in parts, low in cost and easy and convenient to disassemble and assemble.

The invention discloses a lifting mechanical arm which comprises a supporting arm and a movable arm, the near end of the supporting arm is used for being connected to a stand column, the near end of the movable arm is in pivot joint with the far end of the supporting arm through a vertically-arranged mandrel so that the movable arm can pivot around the supporting arm, and the far end of the movable arm is connected with a long and thin part. A workpiece needing to be lifted is used for being detachably attached to the lower end of the thin and long component; a damping component is arranged between the supporting arm and the movable arm, in the process that the movable arm pivots in the direction of the supporting arm, the damping component provides resistance for preventing the movable arm from rotating to the movable arm, and the resistance provided by the damping component at least partially counteracts the rotating torque enabling the movable arm to rotate. And in the process that the movable arm is pivoted from a flat angle state relative to the supporting arm to a right angle state relative to the supporting arm, the resistance provided by the damping part is gradually increased.

A prosthetic valve assembly includes a radially expandable and compressible annular frame. The frame includes a plurality of interconnected struts including a plurality of inner struts and a plurality of outer struts. The inner struts overlap adjacent outer struts at a plurality of pivot joints. Radial expansion or compression of the annular frame causes the inner struts to pivot relative to the outer struts at the pivot joints. The assembly also includes a valve structure within the frame having a plurality of leaflets that regulate blood flow through the frame. Some struts include recessed portions, and other struts that cross the recessed portions include segments that reside in the recessed portions at the pivot joints. This provides a continuous or flush inner or outer surface of the frame.

A modular mounting system for mounting an animal skull to a wall, comprising a backer plate, a pivot joint, an elongated member, and a lock. The backer plate has a mounting stem protruding from its front side and is coupled to the wall on its back side. The elongated member, pivotally mounted to the pivot joint, has a flattened surface for receiving a removable tip and a notch for sliding into a foramen magnum of the animal's skull. The removable tip can be removably coupled to the flattened surface of the elongated member and is selectively detachable to accommodate varying skull geometries. The system also includes a retention member to selectively restrict and permit rotational movement, a support plate coupled to the elongated member, and a display fixed between the backer plate and the lock. The system allows for the secure and adjustable display of animal skulls.

The nail clipper with the push-pull lock comprises a first clipper body and a second clipper body, the side face of the first clipper body is provided with a first pivot joint portion pivoted with a pivot joint nail, the side face of the second clipper body is provided with a second pivot joint portion pivoted with the pivot joint nail, and the rear end face of the first pivot joint portion is provided with an insertion opening. A push-pull lock mechanism is arranged at the position, corresponding to the inserting opening, of the second clamp body, can slide front and back along the second clamp body and is provided with a first position where the push-pull lock mechanism is inserted into the inserting opening and a second position where the push-pull lock mechanism is separated from the inserting opening. The push-pull lock mechanism is matched with the inserting opening so that the front end of the first clamp body and the front end of the second clamp body can be kept in a relatively closed state, and when the push-pull lock mechanism is located at the second position, the front end of the first clamp body can be opened relative to the front end of the second clamp body. The nail clipper has the advantages that the push-pull lock mechanism is located at the front position of the nail clipper, locking and unlocking of the first clipper body and the second clipper body can be achieved by operating the push-pull lock mechanism through the thumb, and operation is easy and convenient.

An apparatus (206), including: a support (206) having: a strut (204) with a sleeve (214) disposed at a lower end (212); and a base (200) configured to be secured to the strut via a pivot joint (210) therebetween. The base has a fin (202) configured to fit within and cooperate with the sleeve to enable the strut to pivot about an axis of rotation (220) of the pivot joint while maintaining a cant angle (222) that is less than 90° relative to the axis of rotation. The fin includes a first fin section (230) that extends circumferentially about the axis of rotation and a second fin section (232) that extends circumferentially about the axis of rotation. The second fin section is disposed axially offset from the first fin section and radially outward from the first fin section relative to the axis of rotation.

A fitting apparatus for installing or uninstalling a pivot joint defined by a ball of a pin and a socket for receiving the ball, the fitting apparatus comprising a frame member adapted to be attached to the socket, an actuator adapted to apply a force to the pin, and a fastening unit adapted to be attached to the frame member, the fastening unit being adapted for attaching the actuator to the frame member for applying a force to the pin to either instal or uninstall the pivot joint.

The present application relates to a vehicle comprising: a first pivot joint having a first pivot portion and a second pivot portion that pivot about a first pivot axis; the second pivoting joint is provided with a fourth pivoting part and a second rotating part which are mutually pivoted around a second pivoting axis, and the first pivoting axis and the second pivoting axis are not collinear; when the first pivoting part and the second pivoting part are relatively fixed, the first linkage unlocking mechanism locks the fourth pivoting part and the second rotating part so as to limit the fourth pivoting part from rotating relative to the second rotating part; when the second pivoting part rotates relative to the first pivoting part, the first linkage unlocking mechanism unlocks the fourth pivoting part and the second pivoting part so as to allow the fourth pivoting part to rotate relative to the second pivoting part, and the rotation of the second pivoting part drives the fourth pivoting part to rotate; and the rotation of the fourth pivoting part drives the second linkage unlocking mechanism to move.

The utility model discloses a rock-soil in-situ direct shear apparatus, and aims to provide an intelligent direct shear apparatus capable of performing a shear test on site in situ. Comprising a base frame, a normal pressure device and a shearing device, the normal pressure device is composed of a normal oil cylinder (3) and a base plate assembly. The normal angle adjusting and locking mechanism is composed of sliding grooves (18), locking grooves (17), sliding pins (19), locking plates (20) and locking bolts (22), wherein the sliding grooves (18) and the locking grooves (17) are located on the two sides of the cross beam (21), the sliding pins (19) are supported in the sliding grooves (18) and are in pivot joint with the normal oil cylinder (3), the locking plates (20) are in pivot joint with the sliding pins correspondingly, and the locking bolts (22) penetrate through the locking grooves (17). The shearing device is composed of a shearing oil cylinder (7) and a shearing assembly, and the rotary locking mechanism is composed of a mounting plate (12) pivoted to the base frame (2) through a rotating shaft (9), guide grooves (14) located in the two sides of the base frame (2) and studs (15) fixed to the mounting plate (12) and penetrating through the guide grooves (14).

The utility model discloses an automatic vagina retractor which comprises a first forceps arm and a second forceps arm, the lower end of the first forceps arm is rotatably connected with the lower end of the second forceps arm through a pin shaft, expansion blades are arranged at the upper end of the first forceps arm and the upper end of the second forceps arm respectively, the lower end of the first forceps arm is rotatably connected with a first handheld ring, and the lower end of the second forceps arm is rotatably connected with a second handheld ring. The lower end of the second clamp arm is rotationally connected with a second handheld ring; a doctor can operate by only one hand without the help of an assistant, and meanwhile, the structure can fully expose the operation view, so that the doctor can conveniently operate the vagina; the rotatable first handheld ring and the rotatable second handheld ring enable a doctor to find a proper angle more easily in the operation process, and the operation view is prevented from being affected.

The utility model discloses a quick-assembly structure of a bath appliance on a counter basin, which comprises a quick-assembly joint in the shape of a hollow pipe body, the quick-assembly joint is provided with an upper threaded section locked with a pressing pump in a threaded manner, a clamping section clamped on an assembly hole of the counter basin and a plurality of propping blocks distributed circumferentially and rotationally pivoted on the side wall of the clamping section; an elastic piece is arranged between the abutting block and the clamping section. When the abutting block compresses the elastic piece to rotate and fold under the action of external force, the diameter of the outer end of the abutting block on the circular ring is smaller than or equal to the diameter of the assembling hole. When the abutting block is rotated and unfolded under the elastic restoring force of the elastic piece, the diameter of the outer end of the abutting block on the circular ring is larger than that of the assembling hole. By means of the structure, the fast-assembly structure of the bath appliance on the counter basin enables the abutting block to automatically abut against the bottom face of the counter basin through the elastic piece, the upper threaded section located above the counter basin is connected with the pressing pump in a threaded locking mode, assembling operation does not need to be conducted below the counter basin, and assembling operation is simpler and faster.

The invention relates to an electrosurgical bipolar forceps (10) comprising: a first arm (12) and a second arm (14) which are pivotably mounted relative to each other by a pivot joint (16); and a stabilizing device (44) for stabilizing the forceps (10) against lateral forces, wherein the stabilizing device (44) has a connecting rod (46) arranged on a proximal side of the pivot joint (16), and wherein the connecting rod (46) has a first bearing structure (48) which is slidably and rotatably mounted on the first arm (12), and a second bearing structure (50) which is rotatably mounted on the second arm (14).