26 results about "Rotated tooth" patented technology

The invention provides an invisible orthodontic appliance assembly and a mounting method and application thereof, the invisible orthodontic appliance assembly is used for treating twisted teeth, and the invisible orthodontic appliance assembly comprises an invisible orthodontic tooth socket at least comprising a twisted tooth part, a first adjacent tooth part and a second adjacent tooth part; a local grinding area is arranged at the torsion tooth part, and the surface of the torsion tooth is exposed; the torsion tooth correction assembly comprises a self-ligating bracket, a first arch tube, a second arch tube and an arch wire, wherein the self-ligating bracket is fixed on the surface of a torsion tooth; the first arch tube is arranged on the surface of the first adjacent tooth part, and the second arch tube is arranged on the surface of the second adjacent tooth part; the arch wire comprises a fixed end and a free end, the fixed end is fixed in the first arch tube, and the free end is accommodated in the second arch tube; the middle part of the arch wire is fixed in the self-ligating bracket to form a locking state, and the resilience force generated by the deformed arch wire is used for correcting the twisted teeth. Through the synergistic effect of the invisible orthodontic tooth socket, the self-ligating bracket, the arch tube and the arch wire, efficient orthodontic of twisted teeth is realized.

The utility model discloses an equipment support with characteristics of easy rotation and high-strength fixation, which comprises a support arranged on the side edge of an equipment main body and a rotary positioning assembly, the rotary positioning assembly comprises a knob and a stud, a silica gel pad is arranged at the bottom of the stud, an extrusion sheet is arranged on one side of the silica gel pad, an inner ring tooth head is arranged on one side of the extrusion sheet, and an outer ring tooth head is arranged on the other side of the extrusion sheet. A rotary tooth piece is arranged on the side, facing the equipment body, of the extrusion piece, a tooth hole is formed in the rotary tooth piece, a tooth face surrounding the tooth hole is arranged on the side, facing the equipment body, of the rotary tooth piece, and a nut seat is arranged at the position, corresponding to the rotary tooth piece, of the equipment body. A corresponding nut is arranged in the nut seat, a fluted disc meshed with the tooth surface is arranged on the outer ring of the nut, and the rotating tooth piece fixes the rotating angle of the support after rotating deformation towards one side through the rotary knob. The utility model solves the problems that the equipment fixing bracket in the prior art is lack of smooth rotation and is easy to loosen.

The application provides a neck exercise device, which comprises a fixing ring, a rotating tooth ring, a bandage, a head cover mechanism, a front and back rotating mechanism, a vertical rotating mechanism and a driving mechanism; the rotating tooth ring is coaxially arranged on the fixing ring and can rotate; the bandage is arranged on the fixing ring; the head cover mechanism is rotatably arranged on the rotating tooth ring; the front and back rotating mechanism is rotatably arranged on the rotating tooth ring and can drive the head cover mechanism to rotate forward and backward; the vertical rotating mechanism is rotatably arranged on the fixing ring and can drive the tooth ring to rotate forward and backward; and the driving mechanism is telescopically arranged on the fixing ring and can drive the vertical rotating mechanism to rotate after driving the front and back rotating mechanism to rotate. The neck exercise device can drive the neck of a patient to rotate forward, backward, leftward and rightward.

The utility model discloses a durable type spring force adjusting device and upturning support, the durable type spring force adjusting device comprises a spring, a protective shell, an adjusting screw, an adjusting screw rod and a spring pressing block, one end of the adjusting screw is provided with rotating teeth, one end of the adjusting screw rod is provided with clamping teeth, the rotating teeth are meshed with the clamping teeth, the spring pressing block is sleeved on the adjusting screw rod, and the spring pressing block is sleeved on the adjusting screw rod. One end of the spring abuts against the spring pressing block, the protective shell is provided with a first containing cavity and a second containing cavity, the adjusting screw is arranged in the first containing cavity, one end of the adjusting screw rod is located in the second containing cavity, and the first containing cavity is communicated with the second containing cavity. By arranging the protective shell and the two containing cavities, mounting of the adjusting screw and the adjusting screw rod is facilitated, the adjusting screw makes contact with the protective shell when rotating, external supporting blocks cannot be abraded, the external shell structure is protected, matching of rotating teeth and clamping teeth is guaranteed, the service life of the adjusting screw is prolonged, and the service life of the adjusting screw is prolonged. And the adjusting effectiveness of the adjusting screw on the adjusting screw rod is kept.

The invention belongs to the technical field of sewage treatment, and particularly discloses a decentralized sewage treatment water inlet automatic adjusting device and method.The decentralized sewage treatment water inlet automatic adjusting device comprises a water inlet channel, an arc-shaped bottom groove is formed in the inner side of the water inlet channel, two rotating rollers are arranged at the top of the water inlet channel, and the ends of the rotating rollers are connected with a power component; tooth grooves are formed in the surfaces of the rotating rollers, the outer sides of the two rotating rollers are rotationally sleeved with two tooth sleeves, teeth on the inner side walls of the tooth sleeves are matched with the tooth grooves of the rotating rollers in a meshed mode, and the rotating rotating rollers enable the adjacent rotating rollers to rotate synchronously through the tooth sleeves. According to the sewage treatment device, the rotating gear sleeve drives the filtering frames to rotate clockwise by utilizing the connecting plate and the outer frame, the filtering frames moving into the arc-shaped bottom groove collect impurities in sewage by utilizing the arc-shaped filtering frames, and the plurality of arc-shaped filtering frames sequentially and continuously filter the sewage impurities in the arc-shaped bottom groove, so that the sewage treatment efficiency is improved.

The utility model discloses a glasses frame with folding and locking functions, and relates to the technical field of glasses frames. The pair of glasses comprises two glasses frames, two first glasses legs and two second glasses legs, wherein the two glasses frames are rotationally mounted through screws. When the folding mechanism is folded to a preset angle, the contact position of the elastic assembly and the rotating teeth is located between the two teeth of the rotating teeth, and then the clamping mechanism is rotated by hand, so that the clamping mechanism moves towards the direction of the elastic assembly and locks the elastic assembly; then the elastic assembly locks the rotating teeth by utilizing the radian between the two teeth of the rotating teeth, then the rotating teeth lock the first glasses leg, and as the elastic assembly and the clamping mechanism are both located in the glasses frame, the glasses frame and the first glasses leg are also locked, and it is ensured that in the using process, the glasses frame and the first glasses leg are not prone to falling off. And after the glasses frame is adjusted to a proper position, the glasses frame cannot be changed, so that the wearing comfort and stability are guaranteed.

The utility model discloses a self-cleaning bubbling spiral-plate heat exchanger, which relates to the technical field of bubbling spiral-plate heat exchangers and comprises a body and a cleaning component, a maintenance port is arranged on the surface of the body, a heat exchange tube is arranged in the body, the cleaning component for self-cleaning the inner wall of the body is arranged on the inner wall of the body, and the cleaning component is arranged on the inner wall of the body. And the cleaning assembly comprises a brushing ring, a mounting frame, a movable groove, rotating teeth, a control rod and a limiting rod, the mounting frame is connected to the inner side of the brushing ring, the movable groove is formed in the mounting frame, and the rotating teeth are arranged in the movable groove. According to the self-cleaning bubbling spiral plate heat exchanger, a control rod rotates and moves under the action of a top motor and a waterproof electric push rod, the control rod drives rotating teeth to rotate on the inner side of a movable groove, after the movable groove and the rotating teeth are meshed, a cleaning and brushing ring moves, and the cleaning and brushing ring rotates and moves in the device body to conduct self-cleaning treatment on the interior of the device body; and manual cleaning steps are reduced.

The utility model relates to the technical field of food canning equipment, in particular to a quantitative filling device for food canning, which comprises a filling table, and a direction adjusting mechanism, a filling mechanism and two groups of supporting grooves which are arranged on the filling table, the direction adjusting mechanism is composed of a rotating disc, a tooth cavity is formed in the lower end of the rotating disc, the rotating disc is connected with an adjusting motor installed on the filling table through the tooth cavity in the bottom, rotating teeth are assembled at the output end of the adjusting motor, the rotating teeth are completely matched with the tooth cavity in the bottom of the rotating disc, and the rotating teeth and the tooth cavity are tightly matched. Connection is achieved through cooperation of a bottom tooth cavity and a rotating tooth of an adjusting motor of a rotating disc in the direction adjusting mechanism, the design structure is relatively simple, the problems that a traditional direction adjusting mechanism is high in component integration degree and complex in structure are solved, when faults occur, troubleshooting and maintenance are easier, the equipment downtime can be effectively shortened, and the production efficiency is improved. The labor cost investment is reduced, so that the production efficiency is improved.

The utility model discloses a radar array cutting device, which belongs to the technical field of antenna processing and comprises a workbench, a fixing mechanism is arranged at the top of the workbench, and a dustproof mechanism is arranged at the top of the workbench. The fixing mechanism comprises two fixing rings, a plurality of evenly-distributed connecting openings are formed in the circumferential outer walls of the fixing rings, fixing openings in one-to-one correspondence with the connecting openings are formed in the outer walls of one sides of the fixing rings, and the inner walls of the fixing openings and the inner walls of the connecting openings are slidably connected with the same connecting rod. And one side of the connecting rod is fixedly connected with a fixing plate. The rotating teeth can rotate through the fixing mechanism, the rotation of the rotating teeth can enable the toothed ring to rotate, at the moment, the movement of the toothed plate can enable the connecting rod to slide in the inner wall of the fixing opening, at the moment, the fixing plate can clamp the surface of a bar, and therefore automatic fixing can be conducted, and the effect of reducing the labor intensity of workers is achieved.

Provided is a sprayer (10), which comprises: a housing assembly (100), the housing assembly (100) comprising a fixed housing (110), the fixed housing (110) comprising an indication portion (114) and a plurality of guide teeth (1111) arranged in the circumferential direction, and a guide groove (1112) being formed between every two adjacent guide teeth (1111); a top supporting disc (300), which is slidably connected to the fixed housing (110) in the axial direction of the housing assembly (100); a counting disc (400), comprising a plurality of rotating teeth (410) arranged in the circumferential direction, an accommodating groove (414) being formed between every two adjacent rotating teeth (410), the rotating teeth (410) matching with the guide grooves (1112), the guide teeth (1111) matching with the accommodating grooves (414), and the counting disc (400) being provided with scale identifiers (430) arranged in the circumferential direction; and a driving assembly (200), which is movably connected to the fixed housing (110) and capable of abutting against an edge of the top supporting disc (300) in the radial direction to periodically drive the top supporting disc (300) to slide so as to enable the counting disc (400) to rotate and enable the indication portion (114) to point to different scale identifiers (430).

The utility model discloses a manipulator for clamping and discharging, which relates to the field of manipulators and comprises a base, a driving component is mounted on one side of the top of the base, a displacement component is movably connected to the side edge of the driving component, a rotating tooth block is arranged on the side edge of the displacement component, and a first connecting frame is mounted at the top of the rotating tooth block. A second connecting frame is arranged at the top of the first connecting frame, and a manipulator assembly is arranged at the top of the second connecting frame. According to the mechanical arm for material clamping and discharging, the arranged translation air cylinder is started, the rack can be driven by the displacement assembly to transversely move, when the rack moves, the rack can be meshed with the rotating tooth block, and at the moment, the mechanical clamping jaw can be driven by the first connecting frame to rotate; in this way, the position of the manipulator assembly can be adjusted according to the position of a material, when the displacement assembly moves, the guide rod can be driven to move in the inner cavity of the driving assembly, and therefore the moving positions of the displacement assembly and the rack can be guided.

The utility model relates to the technical field of zipper structures, and discloses a novel zipper structure with rotatable teeth, which comprises the rotatable teeth, a nylon base band and a zipper head, the rotatable teeth are fixedly connected to the side surface of the nylon base band in an array, the nylon base band is divided into a first base band and a second base band, and the first base band and the second base band are fixedly connected with the zipper head. The rotary teeth are arranged on the opposite sides of the first base band and the second base band in a staggered mode, the other sides of the first base band and the second base band are connected with the cloth band, the rotary teeth are arranged and comprise fixing blocks, the side faces of the fixing blocks are movably connected with tooth blocks, the tooth blocks are fixedly connected with zipper teeth through connecting rods, and the zipper teeth are connected with the cloth band through the connecting rods. The side face of the zipper head is movably connected with the side face of the fixed block through the rotating block, the two opposite rotating teeth are driven to rotate when the zipper head is pulled through, the two rotating teeth are in butt joint and clamped through rotation, friction between the zipper teeth during clamping is reduced, tooth damage is reduced, and the service life of the zipper is prolonged.

The utility model discloses a shrapnel type roller module of a steering wheel switch, which comprises a roller, a rotating tooth, a shading tooth, a roller shaft and a roller support, the roller, the rotating tooth, the shading tooth and the roller shaft are all rotatably mounted on the roller support, the rotating tooth is meshed with the shading tooth and is also meshed with a tooth part of the roller shaft, and the shading tooth is arranged on the roller support. The roller is characterized in that an annular gear part is further arranged on the side portion of the side, away from the rotating teeth, of the roller, the gear part is arranged in the roller, a plurality of positioning notches are formed in the gear part, and a gear elastic piece matched with the gear part is further installed on the roller support. And the gear elastic sheet is provided with a positioning convex part matched with the positioning notch.

The utility model relates to the technical field of water cups, and provides a cup cover and a liquid containing device, and the cup cover comprises a spiral tooth assembly which is arranged at the end part of a cup body and is rotatably connected with the end part of the cup body, and a suction nozzle opening is formed in the spiral tooth assembly; the outer rotating assembly is arranged on the outer side of the rotating tooth assembly in a sleeving manner and can be fixedly and movably connected with the rotating tooth assembly; the cup cover is connected with the outer rotating assembly and can be opened and closed relative to the outer rotating assembly; the clamping and stopping mechanism is installed between the outer rotating assembly and the cup cover and used for controlling opening and closing of the cup cover; the switch signal receiver is used for triggering the clamping mechanism to be opened; through the arrangement of the switch signal receiver, after the liquid containing device is taken by other people, the cup cover cannot be opened, and when the cup cover cannot be opened, the potential risk caused by the fact that the cup cover is unscrewed at will by other people can be avoided.

The utility model relates to the technical field of office furniture, in particular to a multi-angle adjustable foot support which comprises a seat cushion body, a flat pipe connected to the seat cushion body, a rotary connecting piece fixedly connected to one end, far away from the seat cushion body, of the flat pipe, a foot support surface frame hinged to the rotary connecting piece and a locking device. And a mounting groove is formed in the end part of the rotary connecting piece. The rotating shaft sequentially penetrates through the foot support face frame and the rotating connecting piece, and a reset piece is arranged on one side of the rotating tooth. One end of each meshing tooth is rotationally arranged on the inner side wall of the corresponding mounting groove, and the other end of each meshing tooth is in meshing connection with the peripheral side of the corresponding rotating tooth. The foot support surface frame can be automatically locked in the rotating adjusting process through the rotating teeth and the meshing teeth, when the foot support surface frame is adjusted to the highest point, automatic unlocking of the rotating teeth and the meshing teeth can be achieved through the reset piece, so that the rotating teeth and the foot support surface frame can return to the initial positions, and use is very convenient.

This utility model discloses a flocculant dispensing device, belonging to the field of flocculant application. The device includes several forward-rotating teeth and several reverse-rotating teeth staggered inside the dispensing frame, and a drive gear rotating inside the support frame. The drive gear meshes with the forward-rotating and reverse-rotating teeth, which are located in different directions. After meshing with the forward-rotating and reverse-rotating teeth, the rotation of the drive gear causes the dispensing frame to rotate in different directions. An arc-shaped block is provided, which can change the position of the drive gear under its action, thereby interleaving it with the forward-rotating or reverse-rotating teeth to achieve the reciprocating rotation of the dispensing frame. The position of the adjusting rod can be directly changed according to the flocculant dispensing requirements, quickly limiting the rotation angle of the dispensing frame. Furthermore, the rotation angle and error can be directly determined based on the parallelism between the adjusting rod and the edge of the sewage tank, resulting in fewer adjustment steps and allowing for quick changes to the rotation angle of the dispensing frame when changing locations.

The application relates to the technical field of power equipment, and discloses a wire stripper for power construction, which comprises a fixing cylinder, the inner side wall of the fixing cylinder is rotationally connected with a rotating tooth ring, three annularly arranged sealing cavities and three annularly arranged arc-shaped oil cavities are arranged in the rotating tooth ring, three annularly arranged cutting mechanisms are inserted into the inner side wall of the rotating tooth ring, the inner walls of the three arc-shaped oil cavities on the counterclockwise side are all inserted with adjusting mechanisms, and the opposite sides of the three adjusting mechanisms are all welded with fixing mechanisms. Through the opposite movement of the arc-shaped oil cavities and the extrusion piston, the hydraulic oil in the arc-shaped oil cavities enters the sealing cavities through the oil pipeline, extrudes the sealing piston downward, drives the sealing piston, the movable rod and the blade to move towards the cable, the blade extends into the cable, when the rotating tooth ring drives the blade to rotate around the cable, the blade can cut the outer skin of the cable, so that the effect of cutting the outer skin of the cable is achieved.

The invention belongs to the field of assembly of wear-resistant components in a helicopter lift system and a transmission system, and particularly relates to a bushing positioning auxiliary embedding tool and method. Products of different models or specifications need to be replaced with different installation tools, so that the production preparation time is long, and the maintenance cost is high. The bushing positioning auxiliary embedding tool comprises a centering assembly and a replaceable sleeve, the centering assembly comprises a rotating gear shaft, a pair of sliding toothed plates, a protection pad, a centering shell, an upper bearing and a lower bearing, the centering shell is provided with a center hole in the vertical direction and a pair of tooth passing holes in the horizontal direction, and the center hole is provided with a plurality of tooth passing holes. Two tooth passing holes are symmetrically, eccentrically and parallelly arranged, a tooth-shaped groove is formed in an optical axis of the rotating gear shaft 1, the rotating gear shaft is inserted into a center hole of the centering shell, the tooth-shaped groove is located in the centering shell, two sliding tooth plates are symmetrically inserted into the tooth passing holes and meshed with the tooth-shaped groove, and protection pads are arranged at the outer ends of the sliding tooth plates. The rotating gear shaft is fixed at the upper end and the lower end of the centering shell through an upper bearing and a lower bearing respectively; an inner hole of the replaceable sleeve is matched with the outer diameter of the rotating gear shaft, and the outer ring face of the replaceable sleeve is matched with the inner diameter of the lining. The installation requirements of products of various specifications can be met, the installation efficiency is greatly improved, the production preparation time is shortened, the stability of the installation quality is ensured, and the repair rate is reduced. And an efficient and reliable bushing embedding solution is provided for the mechanical assembly industry of helicopters and the like.

The application discloses a clamp device for self-biting steel bars, which comprises a transmission device, a rotating mechanism driven by the transmission device, and a spliced shell with a sliding groove in the inner side wall; the transmission device is located in the interior of the shell; the head of the shell is a circular ring body with a recess for accommodating the rotating mechanism; the rotating mechanism is a ring structure spliced by multiple rotating bodies, the bottom of the rotating body is provided with a bottom disc type tooth, and the end of the transmission device is provided with a rotating tooth engaged with the bottom disc type tooth; a ring groove is formed in the rotating body, the ring groove is provided with a clamping tooth, a spring clamp and a biting switch; the spring clamp comprises a spring body, an upper spring arm with an outward bending protrusion, and a lower spring arm with an inward bending protrusion; a ring groove is formed in the rotating mechanism, the ring groove is provided with a hole for clamping the inward bending protrusion, and the back side of the clamping tooth is provided with a hole for clamping the outward bending protrusion; the clamp device of the application controls the rotation of the clamping tooth through the switch, and is self-adaptive to the steel bar sleeves with different diameters, so that one specification of the clamping tooth can be matched with multiple sizes of the steel bar sleeves.

This invention belongs to the field of mechanical transmission technology, specifically relating to a disengaged transmission mechanism for preventing fatigue loads. The invention divides the output gear set of the transmission mechanism into fixed teeth and moving teeth. By controlling the meshing state of the fixed teeth, moving teeth, and tooth arcs, the vibration and impact borne by the load unit are isolated from the transmission mechanism when the load unit is not required to operate, thereby extending the service life of the transmission mechanism. This disengaged transmission mechanism for preventing fatigue loads includes: an output gear set mounted on the output shaft of the transmission box and a tooth arc mounted on the load unit; the tooth arc meshes with the output gear set, causing the load unit to rotate around its axis; the tooth arc has a disengaged tooth arc region and a rotating tooth arc region; when the output gear set meshes with the disengaged tooth arc region, the transmission box and the load unit are disengaged; when the output gear set meshes with the rotating tooth arc region, the transmission box drives the load unit through the transmission structure.

The utility model provides a control mechanism capable of realizing multi-mode raising of a rake, which relates to the technical field of textile machinery and comprises a rotating shaft, positioning end plates are arranged at two ends of the rotating shaft, the rotating shaft is rotatably connected with the positioning end plates, swing arms are fixedly arranged at two ends of the rotating shaft, and a rotating shaft is rotatably arranged between the inner sides of the outer ends of the swing arms. A plurality of pushing tooth sets are arranged on the rotating shaft, each pushing tooth set comprises a plurality of pushing teeth, the pushing teeth of each pushing tooth set are evenly arranged on the rotating shaft in a surrounding mode, rotating teeth are arranged at the two ends of the rotating shaft respectively, the rotating teeth are evenly arranged on the rotating shaft in a surrounding mode, and positioning pieces matched with the rotating teeth are arranged on the swing arms. And a plurality of stop blocks are arranged on the positioning end plate and around the rotating shaft. Through cooperation of the rotating teeth and the check blocks, the combination of the pushing teeth in different permutation and combination is controlled to enter the cavity, selective lifting of the specific rake body is achieved, diversified operation requirements are met, use is convenient, and production efficiency is high.

The utility model relates to the technical field of water cups, and provides a cup cover and a liquid containing device. The cup cover is used for covering an outer rotating assembly and can be opened and closed relative to the outer rotating assembly; the cup cover comprises a first control piece, the first control piece is installed in the cup cover, and the first control piece is used for controlling the second control piece to move between the connection position and the disconnection position; after the cup cover is closed, the first control piece is used for controlling the second control piece to move to the disengagement position; after the cup cover is opened, the first control piece is used for controlling the second control piece to move to the connection position; after the cup cover is closed, the locking mechanism enables the rotating tooth assembly and the outer rotating assembly to be movably connected, the rotating tooth assembly and the outer rotating assembly do not rotate synchronously, and the rotating tooth assembly does not rotate relative to the cup body. After the cup cover is opened, the locking mechanism enables the outer rotating assembly and the rotating tooth assembly to be fixedly connected, the rotating tooth assembly and the outer rotating assembly can rotate synchronously, and therefore the outer rotating assembly and the rotating tooth assembly are separated from the cup body.

The utility model discloses a modularized multi-piece clutch division angle mechanism, which mainly comprises a first positioning fluted disc, a movable fluted disc and a second positioning fluted disc which are coaxially arranged, a first tooth part is formed on the side face, facing the movable fluted disc, of the first positioning fluted disc, a first rotating tooth part is formed on the side face, facing the first positioning fluted disc, of the movable fluted disc, and the first tooth part and the first rotating tooth part are the same in tooth number and can be meshed with each other. A first tooth portion is formed on one side face of the first positioning fluted disc, a second tooth portion is formed on one side face of the second positioning fluted disc facing the movable fluted disc, a second rotating tooth portion is formed on one side face of the movable fluted disc facing the second positioning fluted disc, the second tooth portion and the second rotating tooth portion are identical in tooth number and can be meshed with each other, and the first tooth portion and the second tooth portion are different in tooth number.

The utility model provides a metal plate positioning and cutting device which comprises a base, a pull block is fixedly connected to the top of the base, a pull rod is slidably connected into the pull block, the pull rod penetrates through the pull block and extends out of the pull block, a compression spring is arranged outside the pull rod, one end of the pull rod is fixedly connected with a semicircular block, and the other end of the pull rod is fixedly connected with a spring. According to the metal plate positioning and cutting device, the rotating mechanism is installed at the top of the device, the rotating mechanism is used in cooperation with the pull block, the pull rod, the semicircular block, the semicircular teeth, the rotating column and the rotating teeth, when the pull rod moves, a compression spring between the pull block and the semicircular block is compressed, and the semicircular teeth are fixedly connected to one side of the semicircular block. The semi-circular teeth are separated from the rotating teeth outside the rotating column, the rotating column is rotated in a separation mode, the metal plate can be rapidly and accurately adjusted to the needed cutting position in a rotary cutting mode, and tedious positioning and adjusting steps in a traditional cutting mode are reduced.

The utility model discloses a kind of excavator bucket tooth mounting and dismounting auxiliary devices, including a set of clamp, tooth holder and card tooth, a set of clamp is respectively sleeved in the outside of tooth holder and card tooth, clamp includes a set of C type fixed frame, fixed pin is provided between a set of fixed frame, one side clamp side wall is connected with a set of guide rod, the other side clamp side wall is connected with guide frame, one end of a set of guide rod extends to the other side and penetrates guide frame, adjusting rotating tooth is provided between guide rod and guide frame, when using in the utility model, after card tooth sleeve installation is completed, clamp, guide rod and guide frame cooperate, still form fixed structure outside card tooth and tooth holder, to further guarantee the stability of both in hammering pin shaft process, to avoid the situation that the pinhole position on tooth holder and bucket tooth side wall appears deviation, so that pin shaft can be smoothly inserted into pinhole.