119results about How to "Snap firmly" patented technology

A wide-screen power motor stepless speed regulation device for an electric vehicle relates to the technical field of electric vehicle motors and is characterized in that the wide-screen power motor stepless speed regulation device comprises a U-shaped fixed base, two parallel rotating shafts are rotatably arranged between two sides of the fixed base, the rotating shafts are respectively provided with a same speed regulation belt pulley, and the speed regulation belt pulley is connected with the fixed base. The speed regulation belt wheels are conical, the arrangement directions of the two speed regulation belt wheels are opposite, a speed regulation belt is arranged between the two speed regulation belt wheels, clamping blocks are arranged on the two sides, making contact with the speed regulation belt wheels, of the two ends of the speed regulation belt in a sliding mode, and a pushing plate is arranged between the clamping blocks. A lead screw is arranged on the side portion of the pushing plate and connected with the side portion of the fixed base through threads. The speed regulation device is simple in structure and technology, low in production and manufacturing cost, high in speed regulation response speed and convenient to use.

The utility model relates to the technical field of locksets, and discloses a lockset capable of supporting key and password unlocking, which comprises a lock shell, a key, a password lock, a key, a password lock and a password lock, the lock shell is provided with a knob and a lock catch, the lock catch is provided with an unlocking position and a locking position on the lock shell, and the knob can drive the lock catch to switch between the unlocking position and the locking position; the coded lock module comprises a plurality of code wheels, and a bulge is arranged on the outer wall of each code wheel; the number searching support is located below the coded lock module and located above the movable push plate. The key lock cylinder can abut against the number searching support through the movable push plate, so that the number searching support is upwards close to the coded lock module. Wherein a group of first convex blocks and second convex blocks which are oppositely arranged at intervals are arranged on the number searching bracket along the lower part of each password wheel, and a clamping groove is formed between the first convex blocks and the second convex blocks; and when the password wheel is shifted to a correct password position, the bulge is clamped into the clamping groove. The anti-theft lock has the advantages of being good in use effect of finding passwords, and high in structural stability.

The invention discloses a laryngeal anesthesia sprayer for the anesthesiology department, and belongs to the technical field of medical instruments, the laryngeal anesthesia sprayer comprises an anesthesia bottle, a top cover, a pressure piston, a piston rod and a pressing plate, a plurality of fixing parts are further installed on the side wall of the anesthesia bottle and located on the same longitudinal axis, and each fixing part comprises a fixing block and two fixing bags; a clamping groove is formed in the fixing block, two fixing bags are fixed to the two sides of the clamping groove respectively, when the spraying pipe is located in the clamping groove, the spraying pipe can be clamped and fixed through the fixing bags in the clamping groove, clamping and fixing of the spraying pipe are achieved through the two fixing bags, and due to the fact that the fixing bags make uniform contact with the spraying pipe, the situation that local pressure on the spraying pipe is too large is prevented; therefore, the situation that follow-up anesthetic liquid flows unsmoothly in the spray pipe is avoided, and the service life of the spray pipe is prolonged.

The utility model discloses an electrical circuit mounting and fixing device for electrical engineering construction, which comprises a bottom plate, a supporting plate is fixedly mounted at the top of the bottom plate, a second arc-shaped plate is slidably connected to the top of one side of the supporting plate, an adjusting mechanism is arranged on the bottom plate, and the adjusting mechanism comprises a sliding groove, a sliding block, a telescopic rod, a rubber pad, an arc-shaped clamping plate, a connecting plate and an electric push rod. Two sliding grooves are formed in the inner wall of the second arc-shaped plate, and sliding blocks are slidably connected to the inner walls of the two sliding grooves. Through an adjusting mechanism, a mounting groove, a lead screw, a moving block, a crank and other structures, the crank is rotated to drive the moving block to ascend and descend through the lead screw, the distance between a second arc-shaped plate and a first arc-shaped plate is adjusted, then whether a rubber pad is clamped with an electrical cable or not is observed, and if not, an arc-shaped clamping plate is driven to descend through adjustment of the adjusting mechanism; and the rubber pad is clamped with the surface of the electrical cable, so that the surface of the electrical cable can be stably clamped through arc-shaped clamping, and slippage during installation is avoided.

The utility model discloses a pressure cooking utensil which comprises a pot body and a pot cover arranged on the pot body in a removable mode, the pot cover is provided with a locking position and an unlocking position, the pressure cooking utensil further comprises a supporting cantilever hinged to the pot body, and the supporting cantilever and the pot cover are of a detachable structure. The supporting cantilever is provided with a guide part on one side of the pot cover, a matching part is arranged on the peripheral side of the pot cover, the guide part is convexly provided with an elastic clamping rib, the matching part is provided with a fixing groove, when the pot cover rotates to an unlocking position, the matching part is matched with the guide part in an inserting manner, and the elastic clamping rib is matched with the fixing groove in a clamping manner under the action of elastic force, so that the pot cover and the supporting cantilever are fixed. The pot cover and the supporting cantilever are dual-fixed, the fixing stability is greatly improved, shaking of the pot cover relative to the supporting cantilever is relieved, and the pot cover can be locked in the state of being fixed to the supporting cantilever and cannot rotate at will. The elastic clamping ribs are clamped with the fixing grooves under the action of elastic force, obvious sound can be generated, and it is indicated that the pot cover is rotated in place.

The utility model discloses a urine sampler which comprises a urine storage tube, and the right end of the urine storage tube is connected with a urine discharging tube; a support is fixed in the urine storage pipe, a floating ball slides in the middle of the support, the top of the floating ball is connected with a first pull rope, the right end of the first pull rope is connected with the top of a baffle through a roller, the baffle slides in the urine storage pipe to form a sealing structure, and the top of the baffle is connected with a second spring. The top of the second spring is connected to the interior of the urine storage pipe, then urine can be automatically discharged when the urine is too much, a funnel slides on the top of the urine storage pipe, and a sliding block is fixed to the bottom of the funnel. The urine sampler is provided with the floating ball, urine can push the floating ball to ascend, then the floating ball ascends to drive the baffle to move through the first pull rope, and therefore the baffle can be opened and closed, redundant urine can be discharged through the urination catheter, and the purpose of automatic urination is achieved.

The utility model discloses a low-temperature two-way sampling probe which comprises a sampling probe body inserted into an inner cavity of a sampling pipeline, temperature sensors are fixedly installed at the top and the bottom in the sampling probe body, a fixing sleeve is fixedly connected to the top of the surface of the sampling pipeline, and a lining pipe is fixedly connected to the bottom of the sampling probe body. A locking assembly is arranged on the surface of the fixing sleeve and comprises fixing lug plates welded to the two sides of the fixing sleeve, and inner cavities of the fixing lug plates are rotationally connected with limiting pull handles. Through the arrangement of the locking assembly, the lining pipe is stably clamped in the inner cavity of the fixed sleeve, so that the sampling probe is stably mounted in the inner cavity of the sampling pipeline, and finally, the sampling probe and the temperature sensor are matched for use, so that the inside and the outside of the inner cavity of the sampling pipeline are synchronously detected; therefore, the purposes of internal and external temperature synchronous detection, convenient disassembly and assembly and strong connection sealing performance can be achieved.

This application relates to the field of smartwatch technology, and provides a smartwatch including: a main unit and a watch band; the main unit has a slide rail with a groove; the watch band has a lead-in structure, the lead-in structure including a lead-in body and an unlocking component, the lead-in body having a groove, and the unlocking component being disposed on the lead-in body; in the connected state, the slide rail is engaged in the groove of the lead-in structure, and the latch of the unlocking component is engaged in the groove to prevent the slide rail from sliding out of the groove; moving the operating part of the unlocking component causes the latch to retract from the groove into a first clearance hole in the lead-in body, so that the slide rail can slide out of the groove. This application has a simple structure, and the watch band and main unit can be quickly separated, realizing quick disassembly and assembly of the watch band and improving the user experience. This application also provides a main unit, a lead-in structure, and a watch band.

The invention discloses a limited space tower reverse construction method construction instrument machining operation table, and particularly relates to the field of machining. A cam is rotationally connected to the interior of an air outlet cavity through a motor, and a piston plate is slidably connected to the position, below the cam, in the air outlet cavity; a plurality of fourth springs are fixedly connected between the piston plate and the air outlet cavity, the lower surface of the air outlet cavity is fixedly connected with a hollow bearing table, and the right side of the interior of the bearing table is fixedly connected with a piston cavity. Through the arrangement of the air outlet cavity, the cam, the piston, the bearing table, the piston cavity, the vent groove, a transverse rod, a first spring, a connecting block, a cleaning strip and a first movable opening, the effect of cleaning the table top of the operating table through the device is achieved, through the arrangement of the cam, the cam rotates, gas extrudes the transverse rod, and the cleaning strip connected through the connecting block is driven to move back and forth on the table top; and dust on the table top can be cleaned.

The utility model discloses a shutter frame which comprises an end cover and cover plates clamped on the two sides of the end cover, the end cover comprises a hollow frame body, clamping hooks connected to the two ends of one side of the frame body, a first limiting block and a second limiting block, and the first limiting block and the second limiting block are connected to the frame body and located between the two clamping hooks. Elastic pressing pieces are arranged on one side of the first limiting block and the two sides of the second limiting block, and clamping blocks matched with the clamping hooks are arranged at the two ends of the cover plate. When the glass is installed, through the effect of the elastic piece, the glass frame can adapt to glass of different thicknesses, and therefore the adaptability is improved.

The present application discloses a use of a self-assembled hydrogel in plugging allergic dentinal tubules, belonging to the technical field of dental biomaterials. The present application provides a use of a self-assembled hydrogel for preparing an allergic dentinal tubule plugging agent, wherein the self-assembled hydrogel is formed by contacting a 1‑30% w / w macromolecular solution with a 1‑30% w / w polyphenol solution; the present application also provides a desensitization therapeutic agent for dentin hypersensitivity containing the self-assembled hydrogel. After the self-assembled hydrogel provided in the present application is used to prepare an allergic dentinal tubule plugging agent, the macromolecular solution and the polyphenol solution can respectively penetrate into the deep layer of the allergic dentinal tubules and self-assemble inside the dentinal tubules to form a dense cross-linked macromolecular hydrogel, thereby effectively avoiding the problem that the cross-linked macromolecular gel solution is difficult to penetrate into the deep layer of the allergic dentinal tubules, and achieving deep plugging of the allergic dentinal tubules.

The utility model discloses an automobile hub with an oil nozzle, which relates to the technical field of automobile hubs and adopts the following scheme that the automobile hub comprises a rim and an oil nozzle mechanism arranged in the rim. A rotating handle drives a first sliding plate to slide on a fixed groove block and drives a first connecting rod to rotate at the same time, movement of the first connecting rod drives a second connecting rod to rotate, and movement of the second connecting rod drives a second sliding plate to slide and drives a third connecting rod to rotate at the same time. At the moment, a first sliding plate and a second sliding plate are opened at the same time, a worker can feed oil into an oil inlet box, the oil can enter oil inlet holes from the oil inlet box, the eight sets of oil inlet holes are formed, lubricating oil can be evenly lubricated to the surface of a spherical roller, and the situation that due to the fact that a hub bearing lacks lubricating oil, an automobile runs, and wheels shake is prevented; abnormal sound is generated, so that potential safety hazards occur, and the uniform lubrication effect of the oil inlet hole on the spherical roller is realized.

The utility model relates to an assembly type EPP floor heating module, including one EPP floor heating module and no. Two sides of one end of one EPP floor heating module are all fixedly connected with splicing positioning block, the one end of no. Control connecting frame is fixedly connected with splicing positioning block, the inner wall of splicing positioning block is equipped with through -going positioning hole, and the inner wall of through -going positioning hole is fixedly connected with inner anti -skid and prevent the pad of falling off. The utility model relates to an assembly type EPP floor heating module, and control connecting frame is clamped into the inner side of splicing positioning block, and positioning block is clamped into the inner side of through -going positioning hole through the effect of its rear end damper and elastic member and is positioned, can fast splicing positioning between one EPP floor heating module and no. EPP floor heating module, can greatly shorten construction time, reduce manual cost, accelerate the project progress, and simultaneously, if the failure of certain module appears, can quickly dismantle and replace, need not to dismantle entire floor heating system, reduced maintenance difficulty and cost.

This invention discloses a portable sediment sampler with a multifunctional collection structure for shallow sea use. It includes a connecting cylinder with a T-shaped operating handle fixedly connected to its top. A connecting layer column is movably installed at the bottom of the connecting cylinder, and a sampling mechanism is fixedly installed at the bottom of the connecting layer column. The sampling mechanism comprises a vertical cylinder, a compression spring, a sediment sampling cylinder, a first slot, a second slot, and a folded cylindrical plate. The sampling mechanism also includes a sealing cylinder, a threaded ring, a filter cotton sheet, and a filter plate. This sampler can simultaneously sample seabed sediment and seabed water, and can separate the sediment from the seabed water. During use, the sampler can be fixed to the side plate of a small fishing boat using an N-type mounting bracket, an adjusting rod, and a pressure disc. Furthermore, during the deep-sea sampling process, the support mechanism effectively prevents the sampling mechanism from tilting. The sampler also has an anti-loss function.

The utility model relates to the technical field of oil rails, and discloses oil rail left and right piece leakage test pressing equipment, which comprises a fixed plate and an oil rail, the middle part of the fixed plate is fixedly connected with a placing plate, the oil rail is placed in the middle part of the placing plate, one end of the oil rail is clamped and connected with a fixed disc, the middle part of the fixed disc is provided with a clamping groove, and the clamping groove is connected with the oil rail. A clamping groove is formed in the upper portion of the placing disc, a clamping groove is formed in the side portion of the clamping groove in a communicating mode, a clamping assembly is connected to the middle of the clamping groove in a clamping mode, and a fixing assembly is installed in the middle of the clamping groove. The oil rail and the placing disc are clamped more firmly, after pushing of the air cylinder is finished, leakage testing can be conducted on the oil rail through other devices, most clamping assemblies are arranged, when the oil rail is clamped, the oil rail and the placing disc are connected in a clamped mode as much as possible, and the problem that results are inaccurate in the subsequent testing process is avoided as much as possible.

The utility model relates to the technical field of heat pump connection, in particular to a heat pump connecting piece convenient to install, which comprises a piece body, a heat pump connecting pipe is installed on one side of the connecting piece body, a water conveying pipe is installed on the other side of the connecting piece body, and a bolt assembly is arranged on the surface of the connecting piece body. The clamping mechanism comprises a fixing block. Through clamping connection of the fixing block and the storage bin, the connecting piece body can be rapidly installed on the heat pump connecting pipe and the water conveying pipe, then the connecting piece body is rapidly aligned with hole sites of the heat pump connecting pipe and the water conveying pipe, meanwhile, continuous lifting of the connecting piece body for installation can be avoided, and the connecting piece is convenient to install. By arranging the first protection plate and the second protection plate on the bolt assembly, the situation that the threaded connection position is exposed outdoors for a long time, corroded and rusted and is difficult to disassemble and assemble can be avoided.

The utility model relates to the technical field of driving shafts, in particular to a driving shaft convenient to install, which comprises a driving shaft rod and is characterized in that the top of the driving shaft rod is fixedly connected with a driving shaft seat, the top of the driving shaft seat is provided with a cavity, and a motor output end is movably connected in the cavity; a plurality of sliding blocks are evenly welded to the surface of the output end of the motor, and sliding grooves matched with the sliding blocks are formed in the surface of a cavity of the driving shaft seat. Four limiting through holes are formed in the outer wall of the driving shaft seat, four limiting grooves matched with the limiting through holes are formed in the output end of the motor, and the limiting grooves and the limiting through holes are slidably connected with limiters; external threads are arranged at the lower end of the outer wall of the driving shaft seat, a limiting sleeve is spirally connected to the outer side of the external threads, a first limiting hole is formed in the limiting sleeve, a second limiting hole is formed in the corresponding position of the driving shaft seat, and the first limiting hole and the second limiting hole are spirally connected with fixing screws. The utility model has the beneficial effects that the output end of the motor and the driving shaft are connected through the sliding block and the limiter, so that the clamping is tight and the separation is not easy.

The utility model discloses a heat dissipation dustproof wall clock rear shell, which relates to the field of wall clocks and comprises a wall clock rear shell body and a hanging hole fixedly connected with one end of the top end of the wall clock rear shell body, a heat dissipation shell is fixedly connected with the middle position of the top end of the wall clock rear shell body, and a movement groove is formed in the inner side of the heat dissipation shell. The outer side of the heat dissipation shell is sleeved with a dustproof ring, one end of the dustproof ring is connected with the wall clock rear shell body, and the inner side of the dustproof ring is provided with a dustproof mechanism used for carrying out dust removal treatment on the surface of the heat dissipation shell. According to the heat-dissipation dustproof wall clock, a certain gap is reserved among the rear shell, the movement groove and the movement and is used for dissipating heat, the movement groove is arranged in the heat dissipation shell, a certain space is reserved between the heat dissipation shell and the outer wall of the movement groove and is used for discharging heat, and the heat is finally dissipated through the heat dissipation holes. And the heat is prevented from being accumulated in the movement groove to influence the long-time use of the movement, so that the stable work of the movement can be ensured.

The utility model discloses a corner positioning structure based on an elastic strip and a gear, which comprises an adjusting fluted disc and a fixing piece which are arranged on a bottom plate, the fixing piece is connected with an axis piece, the axis piece is connected with a rotating piece, and the rotating piece can rotate relative to the fixing piece; a plurality of convex teeth are arranged on the adjusting fluted disc, the convex teeth are arranged in an arc line shape with the rotating center of the rotating part as the circle center, and a groove is formed between every two adjacent convex teeth; an elastic strip is arranged on the rotating piece, the elastic strip can be clamped into the corresponding groove after the rotating angle of the rotating piece is adjusted, and the pressure value of the groove to the elastic strip is F and Fgt; 0. According to the corner positioning structure, the elastic strip and the adjusting fluted disc are arranged and matched with each other, so that the purposes of improving the stability of the corner structure and reducing the control difficulty of a supporting angle can be achieved.

The utility model belongs to test fixture technical field especially relates to a double locking's microneedle test fixture. Including lower mould subassembly, the test site for placing the product to be measured is opened in lower mould subassembly, and at least one group of clamping blocks are symmetrically arranged in the both sides of lower mould subassembly, the upper mould subassembly for pressing together to the upside of lower mould subassembly, at least one group of buckle assembly are symmetrically arranged in the both sides of upper mould subassembly, and the buckle assembly is clamped to clamping block and makes upper mould subassembly and lower mould subassembly relative fixation, and the elastic sheet microneedle module is equipped in upper mould subassembly, and the elastic sheet microneedle of elastic sheet microneedle module is used to downwardly abut the product to be measured, a plurality of hand screws are arranged on upper mould subassembly, and hand screw is connected to lower mould subassembly through upper mould subassembly. The utility model discloses a buckle assembly and hand screw's double locking structure, realize upper mould subassembly and lower mould subassembly's quick locking and reinforcing locking, ensure that the elastic sheet microneedle and the product to be measured keep contact pressure stable between, have the advantages such as high test precision, good reliability, convenient operation.

The utility model discloses a portable human body composition detection nutrition analyzer. The portable human body composition detection nutrition analyzer comprises a supporting column, a movable base, universal wheels, a sundry frame, an analyzer host, a supporting table, an electrode clamp and a data transmission line, a movable base is mounted at the bottom end of the supporting column, a supporting table is mounted at the top end of the supporting column, and a host supporting seat is arranged on the supporting table; the analyzer host is detachably mounted on the host supporting seat, and the analyzer host is connected with an electrode clamp through a data transmission line; a sundry frame is mounted on one side of the supporting column; according to the portable human body composition detection nutrition analyzer, a user can choose a sitting posture or a prone posture, measurement is started when the electrode clamp is clamped to be completely attached, and the portable human body composition detection nutrition analyzer is more convenient and easier to use and experience, does not need to specially stand for measurement and can be suitable for users with different body conditions; and the device can be conveniently disassembled and is suitable for different scenes.

The invention discloses a vagina medicine applying device for gynecological patients. The vagina medicine applying device comprises a pulling medicine applying device and a clamping pushing component. The invention belongs to the field of medical instruments, and particularly relates to a vagina medicine applying device for gynecological patients. The device serves as a gynecological vagina local drug delivery instrument, through optimization of a mechanical structure and integration of functions, technology upgrading and function innovation of a traditional vagina applicator are achieved, the industry current situation that a traditional gynecological drug application instrument is single in function and extensive in operation is broken through, triple improvement of the treatment effect, the use experience and the operation safety is achieved, and the device is worthy of popularization and application. A more efficient, safer and more humanized dosing tool is provided for gynecological clinical nursing, and the overall service quality of gynecological nursing can be improved.

The utility model discloses a fire extinguisher with spray pipe support relates to fire extinguisher technical field, including fire extinguisher body, handle and spray pipe body, the one side of fire extinguisher body is provided with handle. First, the fixed ring is inserted into the inside of fixed frame with the plug -in rod, then rotates the runner to drive T shape locking rod and plug -in rod locking, thereby can fix the plug -in rod, make the fixed ring can set up at the one side of spray pipe body, thereby make the spray pipe body can be more stable through the fixation of support when placing, and then avoid the fire extinguisher when being shaken to cause the spray pipe to be impacted, first, the butt joint rod is inserted into the inside of fixed ring with the protection pad, then rotates the bolt to push the triangular block, make the triangular block can drive the limiting rod and butt joint rod locking, thereby can install the protection pad fast on the one side of fixed ring, make the spray pipe body and fixed ring can be more stable when clamping, avoid the spray pipe body to produce damage or to loosen.

The invention discloses a multi-station special automatic printing machine, which relates to the technical field of printing, and comprises a main body mechanism used for controlling the automatic operation of equipment; the material conveying mechanism is used for transferring the products needing to be treated to the top of the main body mechanism, so that the next-step treatment of the products is facilitated; the printing mechanism is used for adjusting the distance between the printing mechanism and the product to finish printing treatment; the discharging mechanism can complete printing of the products so that automatic discharging treatment of the products can be achieved. According to the automatic printing equipment, firstly, the discharging mechanism and the printing mechanism work cooperatively, automatic printing treatment of products is achieved, after the printing task is completed, all assemblies are restored to the original state through the reverse operation step, transferring treatment of the products can be achieved, through a series of precisely-designed assemblies and procedures, the manual procedures are reduced, and the production efficiency is improved. The full-process automatic treatment from product conveying, adsorbing, transferring, clamping, printing to releasing is achieved, and the production efficiency and the product quality are greatly improved.

The universal modular mounting interface comprises an underwater butt joint seat, and a robot butt joint head is inserted into a cavity in the right end of the underwater butt joint seat; the underwater butt joint seat comprises a butt joint seat electrifying unit and an automatic reset water retaining unit, and the automatic reset water retaining unit used for preventing a water source from entering is arranged in an inner cavity of the right end of the butt joint seat electrifying unit. The locking mechanism is driven by the air cylinder, the track caulking groove is precisely matched with the main driving insertion rod, rapid and firm clamping with the butt joint seat locking groove can be achieved, and the locking mechanism bears the impact of underwater strong water flow and is not prone to loosening. Meanwhile, a power connection link adopts a time-delay plugging design driven by an electric push rod, and a power connection plug is driven to be in butt joint with the underwater connector only after the cavity is dry and locked, so that electrical sparks and equipment damage possibly caused by electrifying in a state that the cavity is not in place or has water are avoided. The whole action logic is clear, the control precision is high, and the automation and safety of the docking process are guaranteed.

The utility model relates to the field of sewage residue transportation, and discloses sewage residue transportation equipment which comprises a vehicle body, an axle is movably connected to the bottom end of a buffer structure, wheels are fixedly connected to the two ends of the axle, and a supporting rod is fixedly connected to the other side of the bottom end of the vehicle body. Supporting anti-skid feet are movably connected to the bottom ends of the supporting rods, a push-pull rod is fixedly connected to the top end of the other side of the vehicle body, a damper is fixedly connected to the inner top wall of the buffer box, a buffer block is fixedly connected to the bottom end of the damper, and the bottom end of the buffer block is fixedly connected with the surface of the axle through a bearing seat. And a damping spring is wound on the surface of the damper at the top end of the buffer block. According to the transportation equipment for the sewage residues, jolting vibration generated by rolling of the wheels can enable the axle to ascend, the buffer blocks slide to compress the dampers and the damping springs, then the dampers and the damping springs are used for absorbing and consuming vibration generated by rolling jolting of the wheels, and the stability and smoothness of vehicle body transfer are improved.

The utility model is applicable to the field of carton lock catches, and provides an all-paper carton lock catch and a carton, the all-paper carton lock catch comprises a blocking plate which is in a square structure and is provided with a square through hole in the middle, and sticking plates which are arranged on two sides of the blocking plate, are in a concave shape and are connected with the blocking plate through folding plates, the folding lock units are arranged on the pasting plates on the two sides and arranged in the concave faces of the pasting plates, the locking plates are arranged on the blocking plate and arranged on the two opposite sides in the square through hole, the locking plates and the pasting plates on the two sides are of a right-angle structure on the plane, and the locking plates are provided with locking grooves. The supporting frame is arranged on the locking plates on the two sides in a sleeving mode and is of a square structure; the utility model aims to solve the problems that in the prior art, lock catch plastic materials are frequently used in the market, and along with the trend of packaging plastic removal, the environmental protection property of the plastic lock catch gradually does not meet the market requirement; part of the raw materials are molded by paper pulp, so that the bearing capacity is relatively weak.

The invention provides a ratchet type one-way clutch in which all claw members can be stably engaged with a tooth part. The ratchet-type one-way clutch has an outer ring, an inner ring, and first to n-th claw members, a plurality of teeth capable of engaging with the first to n-th claw members are formed on the outer peripheral surface of the inner ring, first to n-th claw member holding portions for holding the first to n-th claw members are formed on the inner peripheral surface of the outer ring, and biasing members for biasing the first to n-th claw members are provided on the first to n-th claw member holding portions. When viewed from the central axis, the second to n-th claw member holding portions are provided at positions shifted by any angle from positions equally dividing the inner peripheral surface of the outer ring in the circumferential direction by n with respect to the position of the first claw member holding portion as a reference.

The utility model belongs to the technical field of medical equipment, and particularly relates to a rotary adjusting device and a cervical vertebra fixator, the rotary adjusting device is arranged between a first adjusting part and a second adjusting part, the first adjusting part rotates relative to the second adjusting part in the preset direction, and the second adjusting part rotates relative to the first adjusting part in the preset direction. Comprising a rotating part arranged on the first adjusting part and a clamping part arranged on the second adjusting part, the rotating part is provided with ratchet teeth, a plurality of ratchet teeth are arranged along the circumferential side face of the rotating part at intervals, a positioning groove is formed between every two adjacent ratchet teeth, and all the ratchet teeth are obliquely arranged; the inclination direction of the ratchet teeth is opposite to the preset direction; the clamping piece is provided with clamping teeth, the number of the clamping teeth is at least two, the clamping teeth are arranged side by side at intervals, and each clamping tooth can be correspondingly inserted into one positioning groove. According to the rotation adjusting device, the reliability of clamping connection between the rotating piece and the clamping piece is improved.