42results about How to "Synchronous lifting" patented technology

The invention discloses an automatic detection device and detection method for the sealing performance of a precision valve, and the device comprises a machine body which is provided with a placement frame at the side edge; the detection mechanism is arranged on the placement frame; the detection mechanism comprises a lower plate body fixedly arranged at the top of the placing frame, an upper plate body positioned at the top of the lower plate body, and supporting columns fixedly arranged at four corners between the lower plate body and the upper plate body; a mounting plate movably sleeves the two supporting columns at the rear position, a plugging mechanism is arranged in the detection mechanism, the plugging mechanism comprises an enclasping assembly horizontally arranged between the upper plate body and the lower plate body, and the enclasping assembly movably penetrates through the mounting plate; according to the sealing device, the problems of low efficiency and insufficient automation degree existing in a traditional manual sealing mode are effectively solved through introduction of a sealing air cylinder, and in order to avoid accidental ejection of a valve which is installed in place due to the pressure effect in the sealing process, a holding assembly is designed; the enclasping assembly can be tightly attached to and limit the blocked valve.

The utility model relates to the technical field of horizontal lathes, in particular to an automatic feeding hard rail horizontal lathe which comprises an operation table, a spindle box is installed at the left end of the top of the operation table, a three-jaw chuck is installed at the right end of the top of the operation table, and a fixing table is installed between the spindle box and the three-jaw chuck. A feeding assembly is installed at the top of the fixing table, the feeding assembly is used for automatically feeding lathe materials, the feeding assembly comprises a first frame, a second frame, a driving gear, a threaded rod, a sliding rod, a half gear, a toothed plate and a top plate, and the first frame and the second frame are installed at the front end and the rear end of the fixing table correspondingly. Compared with an existing automatic feeding hard rail horizontal lathe, the automatic feeding hard rail horizontal lathe has the advantages that automatic feeding of the horizontal lathe can be achieved through the design of the top plate and the half gear, workpiece feeding shaking is effectively prevented through the design of the telescopic rod and the clamping block, and the overall practicability is greatly improved.

The utility model provides a grinding disc trimming mechanism, which relates to the field of grinding machines, and comprises a support plate connected to a grinding machine frame and positioned between two grinding discs, and the support plate is provided with an avoiding through hole for the grinding discs to pass through; the upper end of the supporting plate is connected with a fixing base capable of sliding in the vertical direction and a driving assembly used for driving the fixing base to move up and down, and the fixing base is connected with grinding wheels located on the two sides of the supporting plate and used for finishing the two grinding discs correspondingly. According to the grinding disc finishing mechanism, the grinding surface of the grinding disc can be finished without disassembling the grinding disc, the structure is simple, and the finishing efficiency is high.

The utility model discloses a small winding device for upper and lower stop wires of a zipper, relates to the field of zipper processing equipment, and solves the problems of insufficient winding uniformity and the like. Comprising a take-up mechanism, a wire passing roller mechanism and a guide mechanism, the take-up mechanism comprises a rotating shaft capable of doing linear reciprocating motion and a take-up cylinder detachably and fixedly arranged on the rotating shaft in a sleeving mode; a lifting assembly is connected to the wire passing roller mechanism and drives the wire passing roller mechanism to rise gradually in the vertical direction. The guide mechanism comprises two bow arms which are oppositely arranged at an interval and at least two chord lines tensioned between the two bow arms; the two strings are arranged in parallel at intervals to form a guide channel for the wires to penetrate through, and the guide channel is perpendicular to the take-up barrel and located at the position where the wires are about to be wound to the take-up barrel. The double-string guide channel forms accurate constraint on the wires, transverse shaking of the wires before winding is effectively restrained, the problems of wire overlapping and groove jumping caused by insufficient constraint of a traditional guide mode are solved, and the winding stability and the winding body quality are integrally improved.

The present invention discloses a synchronous lifting and winding device of a metal striped belt felt tension machine, comprising a winding mechanism and a belt tension synchronous lifting mechanism arranged in sequence from left to right, the winding mechanism and the belt tension synchronous lifting mechanism are arranged at intervals, and the winding mechanism packs and rolls the steel belt at the belt tension synchronous lifting mechanism, the belt tension synchronous lifting mechanism comprises a base, a slide rail is fixedly installed on the base, a lower support seat is slidably arranged on the slide rail, an upper support seat is arranged above the lower support seat, the upper support seat and the lower support seat are connected by a guide column, a lifting assembly is arranged in the middle of the lower support seat, and a material guide table is fixedly installed on the upper support seat. The present invention has a simple structure, an ingenious and reasonable design, the striped steel belt can be in the same horizontal plane with the steel belt on the winding mechanism, effectively avoiding the bending of the steel belt and improving the yield of the product.

The utility model relates to large -scale steel structure welding mobile type operation platform, including support base, operation platform, ladder structure and lifting assembly, the lifting assembly includes cross bar and control assembly, wherein: Cross bar installs on support base, Control assembly rotationally sets up on cross bar, and bottom can extend downward to make universal wheel from ground, Control assembly includes pivot, support leg and spacing cylinder, wherein: Pivot passes through cross bar and is connected with rotation, Support leg is with pivot's bottom screw joint, Spacing cylinder installs on cross bar, and spacing cylinder and support leg sliding connection, the utility model discloses through the control of lifting assembly, can make universal wheel from ground when operating, will platform fixed in the operation position, promotes the operation security, after the operation, can make universal wheel ground, the platform moves conveniently, realized the flexible switching of mobile and fixed function, improved the use convenience of platform.

This utility model discloses a scratch-resistant dining table, including a tabletop, a height adjustment mechanism, a mounting and locking mechanism, and a locking auxiliary mechanism. The height adjustment mechanism includes an anti-scratch plate, a bottom support plate, a top support plate, a hinge frame, and a hydraulic cylinder. The mounting and locking mechanism includes a locking tube, a locking rod, an annular groove, an embedded plate, a turntable, and a driving plate. The height adjustment mechanism improves the wear resistance and service life of the tabletop by setting an anti-scratch plate on the top of the tabletop. The use of paired hinge frames and hydraulic cylinders ensures smooth and stable lifting. The locking rod and locking tube can be quickly inserted. The embedded plate and the annular groove complete stable locking, improving assembly efficiency. The spring support pin provides continuous pushing force to the rotating ring, making the rotation of the plate more stable and reliable. The clamping ring clamps the driving plate through a threaded adjustment method to prevent rotational loosening and improve the overall locking force of the connection.

The utility model relates to the technical field of occupational health sampling supports, and discloses a multipurpose support for occupational health sampling, which comprises a mounting bottom plate, a first limiting rod fixedly mounted on the left side of the top of the mounting bottom plate, a mounting top plate fixedly mounted on the top of the first limiting rod, and a second limiting rod fixedly mounted on the right side of the bottom of the mounting top plate. By arranging the automatic height adjusting mechanism, the automatic height adjusting mechanism can drive the active lifting supporting plate assembly to move downwards through the reciprocating lead screw, and the heights of the active lifting supporting plate assembly, the first lifting supporting plate assembly, the second lifting supporting plate assembly, the third lifting supporting plate assembly and the fourth lifting supporting plate assembly are automatically adjusted; a user can use the device conveniently, the situation that the lumbar vertebra of the user is damaged due to frequent stooping is avoided, and the body health of the user is protected.

The utility model relates to the field of humidifiers, in particular to a humidifier capable of being automatically started and stopped according to environment humidity. The humidifier capable of being automatically started and stopped according to the environment humidity comprises a controller, a humidity sensor, a humidifying shell, a lifting mechanism, a water purifying box, a sterilizing box, an air inlet, an air outlet, a centrifugal fan, a first wet curtain plate and a second wet curtain plate. The controller is arranged on the outer surface of the humidifying shell and fixedly connected with the humidifying shell. The humidity sensor is arranged on the outer surface of the humidifying shell, fixedly connected with the humidifying shell and electrically connected with the controller. The lifting mechanism is arranged outside the humidifying shell, connected with the humidifying shell and electrically connected with the controller. The first wet curtain plate is connected with the lifting mechanism. And the second wet curtain plate is connected with the lifting mechanism. And through cooperation of gear transmission and a threaded rod, synchronous lifting of the first wet curtain plate and the second wet curtain plate is achieved, and it is guaranteed that the humidification process and the disinfection process are conducted synchronously.

This utility model relates to a geomembrane storage device, belonging to the technical field of geomembrane production equipment. It includes a frame with a lifting assembly movably mounted on it. Horizontal supports are provided along the width direction on the lower part of both sides of the frame, and multiple fixed rollers are evenly installed above the horizontal supports on both sides. Multiple lifting rollers are rotatably mounted on the lifting assembly, and the lifting rollers and fixed rollers are staggered in the horizontal direction. The lifting assembly includes a connecting beam, with lifting slide plates fixedly connected to both ends of the connecting beam. This utility model forms a retractable storage path through the staggered arrangement of fixed rollers and lifting rollers, temporarily storing continuously produced geomembrane, preventing geomembrane contamination, significantly reducing raw material loss, and lowering production costs. No downtime is required during the replacement of the winding rollers, allowing the front-end production equipment to operate continuously, effectively improving production line efficiency. A single motor, in conjunction with a transmission shaft, drives the worm gear lifting mechanisms on both sides synchronously, ensuring synchronous lifting on both sides of the lifting assembly, resulting in stable, safe, and reliable equipment operation.

The invention relates to the field of conveying, and particularly discloses a high-strength steel structural part transportation production line which comprises an annular truss crane, a pickling chamber, a transfer guide rail, a transfer trolley and a galvanizing chamber. The annular truss crane is composed of a bridge frame, an annular sliding rail, a first lifting arm and a plurality of first limiting sliding blocks, and the first lifting arm is arranged below the first limiting sliding blocks and used for picking the hanging tool. The pickling chamber is arranged below the lifting hook and located on the side of the annular sliding rail, the first end and the second end of the transfer guide rail are arranged under the annular sliding rail at intervals, and the transfer trolley is slidably connected with the transfer guide rail and used for bearing the hanging tool. Part of the annular sliding rail is located in the galvanizing chamber. The pickling tank has the effect of reducing too high zinc ions in the pickling tank.

This utility model discloses a surface treatment device for end cap processing, including an ultrasonic cleaner. The ultrasonic cleaner has a mesh basket inside its cavity and a protective frame on its top. Pushing devices are located on the left and right sides of the top of the mesh basket. This utility model solves the problem of existing ultrasonic cleaners requiring operators to place the end caps to be cleaned into the mesh basket before manually inserting them into the ultrasonic cleaner. After cleaning, the mesh basket must be manually removed from the ultrasonic cleaner. This process is time-consuming and labor-intensive. Furthermore, during cleaning, the end caps are usually stationary inside the mesh basket, which may prevent sufficient cleaning of the contact area between the end cap and the mesh basket, thus affecting the cleaning effect.

The utility model relates to the technical field of liquid medicine production, and discloses a water quantity control structure and a liquid preparation tank thereof, the water quantity control structure comprises a water quantity control assembly, the water quantity control assembly comprises a rectangular frame and a measuring flask; the liquid outlet assembly comprises an air cylinder and a liquid outlet nozzle; the quantitative adjusting assembly comprises a clamping block; and the pushing assembly comprises a driving part and a pushing part, and the driving part and the pushing part are in matched transmission. The measuring flask is communicated with the tank body through the liquid inlet pipe, the measuring flask and the liquid outlet assembly are arranged, liquid in the measuring flask is filled into the container through the first electromagnetic valve and the liquid outlet assembly, the filling amount of the solution in the measuring flask can be adjusted through the quantitative adjusting assembly, adjustment is convenient, the solution in the measuring flask is squeezed out through the pushing assembly, filling is convenient, and the filling efficiency is improved. The single-time filling amount of the device is controlled through reasonable structural design, the whole adjusting process is simple and rapid, and practicability is high.

The invention provides a novel three-dimensional storage device for traction motors of locomotive wheelsets for railways, including a carrier, a rail car, a drive assembly, and a mounting assembly for mounting the drive assembly. There are multiple rail cars, and a slide rail is mounted on the carrier. Multiple rail cars are arranged on the slide rail. Two adjacent rail cars are connected by a connecting assembly. The drive assembly is mounted on the mounting assembly. Both ends of the mounting assembly are provided with mounting units. The mounting assembly is detachably connected to the slide rail through the mounting unit. The drive unit is connected to one of the rail cars, and an adjustment assembly for adjusting the height is also provided at the bottom of the mounting assembly. The novel three-dimensional storage device for traction motors of locomotive wheelsets for railways created by the invention solves the problem that the power of the rail cars of existing locomotive wheel set traction motor storage devices is all on the rail cars, and the rail car cables often move on the ground, which is prone to safety hazards.

The utility model relates to the field of casting impurity removal devices, in particular to a separation impurity removal device for manufacturing a high-wear-resistance casting, and solves the technical problems that impurities need to be separated from waste metal manually, so that the labor cost and the time cost are high; according to the technical scheme, the separating and impurity removing device for manufacturing the high-abrasion-resistance casting comprises a bottom plate, supporting legs, a separating box, a collecting box, an ultrasonic generator, a separating assembly, a lifting assembly and a stirring assembly; through combined operation of the separation assembly, the lifting assembly and the stirring assembly, impurities are accurately and effectively separated from waste metal, a waste metal pile can be ingeniously turned over and stirred, it is ensured that the metal is in full contact with ultrasonic waves generated by the ultrasonic generator, and therefore the separation efficiency is greatly improved, and the labor intensity of workers is reduced. The lifting assembly shows flexibility, the height of the stirring assembly can be adjusted according to requirements, and potential interference between the stirring assembly and other assemblies is effectively avoided.

This utility model belongs to the field of building door and window technology, and particularly relates to a dual transmission device for lifting windows, including a drive mechanism, a first transmission mechanism, and a second transmission mechanism. The drive mechanism includes a drive motor, a worm gear, a worm wheel, and a drive shaft. The dual transmission device for lifting windows provided in this application adopts a double-chain transmission structure. The first chain and the second chain simultaneously carry the movable window, distributing the load-bearing force and reducing safety hazards. It adopts a single-motor transmission structure, in which the drive motor drives the worm gear, worm wheel, drive shaft, first sprocket, and second sprocket to rotate, thereby driving the first chain and the second chain to move up and down, thus driving the movable window to move up and down. The single-motor system has low cost, simple control, and effectively ensures synchronous lifting. The worm gear and worm wheel mesh to form a self-locking structure, which can fix the movable window at any position, making the positioning more reliable and effectively preventing the movable window from falling due to its own weight.

The utility model relates to the field of paper cup machines, and discloses a cup bottom hot air device of a paper cup machine, which comprises a heating cover and a hot air generating device, a cavity allowing the bottom of a cup to enter is arranged in the heating cover, a hot air head is arranged at the bottom of the cavity, and the bottom of the hot air head is fixedly connected with a hot air guide pipe. The outlet end of the air outlet pipe communicates with the hot air guide pipe, and the hot air guide pipe can ascend and descend relative to the hot air production device and is used for adjusting the size of an air path communicating between the air production pipe and the hot air guide pipe. The hot air head is installed at the top of the hot air guide pipe, and the hot air guide pipe is driven to move while the hot air head is driven to ascend and descend. The lifting motion of the hot air guide pipe can directly determine the size of an air path communicated between the air outlet pipe and the hot air guide pipe, so that the heating of the heating cover and the operation of the heating cover can be synchronously carried out, the coordination of equipment operation can be improved, and an additional control device is not needed to control the air volume.

The invention relates to the field of multi-wire cutting machines, and provides a multi-wire cutting machine with a safety protection function, the multi-wire cutting machine comprises a rack, a multi-wire cutting unit and lifting devices, and the two sides of the multi-wire cutting unit are connected with the rack through the lifting devices; the lifting device comprises a lead screw, a first driving assembly, a main nut, an auxiliary nut, a connecting piece and a displacement detection assembly. The main nut and the auxiliary nut are both in threaded connection with the lead screw, the pitch of the auxiliary nut is larger than that of the main nut, and the main nut is connected with the rack. A gap is reserved between the main nut and the auxiliary nut, one end of the connecting piece is fixedly connected with the main nut, and the other end of the connecting piece is movably connected with the auxiliary nut. The displacement detection assembly is arranged between the main nut and the auxiliary nut. The first driving assembly is arranged on the rack and connected with one end of the lead screw. The multi-wire cutting unit has the advantages that the main nut can be replaced in time according to the detected displacement, so that the multi-wire cutting unit can be prevented from falling off due to excessive abrasion of the main nut, and the use safety can be greatly improved.

The invention relates to an unmanned aerial vehicle, in particular to an unmanned aerial vehicle based on form transformation, which comprises an unmanned aerial vehicle body, an on-off key arranged at one end of the unmanned aerial vehicle body, a holder arranged at the other end of the unmanned aerial vehicle body and four propeller assemblies arranged on the unmanned aerial vehicle body, a lifting telescopic structure is arranged on the unmanned aerial vehicle body and connected with the four propeller assemblies. The lifting telescopic structure is arranged on the unmanned aerial vehicle body, the four propeller assemblies are arranged at the four corners of the lifting telescopic structure correspondingly, and through adjustment of the lifting telescopic structure, the four propeller assemblies can achieve synchronous lifting or telescopic adjustment relative to the unmanned aerial vehicle body, so that the unmanned aerial vehicle can be adjusted synchronously when the unmanned aerial vehicle ascends; when the top flying space is shielded by light and fragile obstacles such as leaves and the like and needs to be crossed, the shape of the unmanned aerial vehicle is changed according to the flying environment, the propellers can be prevented from colliding with the leaves, and the obstacle crossing effect is improved.

The application discloses a railway freight car damping system replacement set, and belongs to the technical field of railway freight car damping system maintenance equipment. The set is composed of a self-locking hydraulic pick, a supporting tool, a positioning pin, a wire tightener, a portable electric hydraulic pump, a lifting protection device and a pillow spring fork, and the components are detachably connected through the positioning pin and an oil pipe. The supporting tool is symmetrically designed and is provided with a protruding block, cooperates with the self-locking device of the self-locking hydraulic pick and the wire tightener, and can avoid pick collapse during the jacking process; the lifting protection device comprises a first lifting protection device and a second lifting protection device, and provides safety protection at the highest jacking position and the lowest falling position of the bolster end head, respectively. The set can simultaneously complete pillow spring replacement and side frame column wear plate replacement, and can be used for on-line maintenance without removing the car, solves the problems of single function, narrow adaptation range, low maintenance efficiency and great safety hidden danger of the existing equipment, and is suitable for various types of railway freight car bogies.

The present invention discloses a lifting device, a vehicle using the same, and an application thereof, and belongs to the field of automobile auxiliary equipment. The device includes a slide groove, a sliding block, a force plate, a lifting drive device, a transmission rod, a threaded transmission assembly, a support bearing, a fixed plate, a connecting arm, and a control system for being arranged on the bottom plate of the automobile. The present application is based on the existing automobile, and by setting a brand-new auxiliary lifting device, the position of the center of the automobile tire relative to the bottom plate of the automobile is changed under the premise of ensuring the original shock absorption system of the automobile as much as possible, thereby achieving the purpose of lowering the center of gravity of the bottom plate of the automobile. When the present application is used for a mobile dining car, the mobile dining car is moved to a set position, and the lifting device works, so that the center of the tire is close to the bottom plate. Since the tire is in contact with the ground, the present application can achieve the purpose of lowering the center height of the bottom plate. The device of the present application is ingenious in conception, reasonable in design, simple in structure, easy to use, and has high application value and good application prospects.

The utility model discloses a steerable carton conveying device, which relates to the technical field of carton conveying and comprises cross beams, lifting cylinders, long rollers, short rollers and corner cylinders, the cross beams are arranged in a front group and a rear group, the long rollers and the short rollers are mounted between the two groups of cross beams, the short rollers are distributed on two sides of a cross-shaped ejector rod, and the corner cylinders are arranged on the two sides of the cross-shaped ejector rod. The distances between the long rollers and the short rollers are the same; the lower portion of the cross-shaped ejector rod is connected with a rotating shaft, and the lower portion of the rotating shaft is connected with a first bearing through an upper shaft rod. According to the steerable carton conveying device, the lifting air cylinder is combined with the corner air cylinder, the lower shaft rod is upwards jacked through the lifting air cylinder, the cross-shaped ejector rod drives a carton to move upwards, meanwhile, the corner air cylinder drives the gear to rotate, the upper shaft rod drives the cross-shaped ejector rod to rotate, in the process, the cross-shaped ejector rod achieves synchronous lifting and rotating, and the carton conveying efficiency is improved. Therefore, the cartons conveyed on the assembly line can turn by 0-180 degrees, and the code assigning face faces the code assigning machine, so that code assigning of products before delivery is completed.

This utility model relates to the field of rehabilitation therapy technology and discloses a height-adjustable rehabilitation frame for a nursing bed, which includes a top frame and a lifting assembly. The top frame provides a training plane required for rehabilitation training. Since the extension column is fixedly connected to the top frame and slidably connected to the support column, the power end is fixedly connected to the extension column, the moving end is fixedly connected to the cross frame, and the bottom end of the support column is fixed to the cross frame, when the power end drives the moving end to move up and down, the extension column slides relative to the support column, thereby changing the height of the extension column relative to the bed surface of the nursing bed, and thus causing a change in the relative height between the top frame and the nursing bed. Moreover, the two lifting units at the same end in the first direction use the cross frame as a reference when lifting, which facilitates synchronous lifting and lowering, so that one end of the top frame can be adjusted accordingly to adapt to the angle of the nursing bed. This eliminates the need to disassemble and reassemble parts of the rehabilitation frame, reduces labor costs, and improves adjustment efficiency.

The present application belongs to the technical field of traffic safety guidance, and particularly relates to a traffic intersection vehicle and pedestrian indication and guidance device; the device comprises a mobile base and a protection box; an information display assembly is arranged on the protection box; the information display assembly comprises a display, a warning light strip and a warning light board; a first rocker arm and a second rocker arm are hingedly connected to the top of the protection box, the first rocker arm is connected with a driving motor in the protection box, the first rocker arm and the second rocker arm are crossed, a linkage rod is hingedly connected between the top ends of the first rocker arm and the second rocker arm, a support disc is installed on the linkage rod, the display is installed on a rotating seat on the support disc, and a counterweight is installed at the lower end of the display; the support disc is provided with downwardly hanging lugs on the left and right sides of the linkage rod, and the warning light board is hingedly connected with the lugs; multi-angle self-adaptive inclination of the display is realized through the linkage of the rocker arms, the picture is kept upright in combination with the counterweight; meanwhile, corresponding camera pictures are switched according to the inclination direction, visual blind areas are effectively eliminated, and traffic safety is improved.

This utility model belongs to the field of building door and window technology, and particularly relates to a dual-drive synchronous lifting window, including a window frame, a lower fixed frame, a movable window, a transmission mechanism, and an installation mechanism. The transmission mechanism includes a gearbox, a transmission motor, a worm gear, a worm wheel, a transmission shaft, a support plate, a first sprocket, a first chain, a first window sash mounting plate, a driven sprocket, a second sprocket, a second chain, and a second window sash mounting plate. The installation mechanism includes a first mounting plate and a second mounting plate. The dual-drive synchronous lifting window provided in this application adopts a dual-chain transmission structure, where the first and second chains simultaneously bear the movable window, distributing the load and reducing safety hazards; the single-motor system is low-cost and simple to control, effectively ensuring synchronous lifting; the first and second mounting plates provide a precise positioning reference for the gearbox and the second sprocket, improving installation efficiency; the installation mechanism uses a pin-type installation, making disassembly and assembly quicker and more convenient, improving maintenance efficiency; the worm gear and worm wheel mesh to form a self-locking structure, allowing the movable window to be fixed at any position, making positioning more reliable.

The utility model discloses a lifting device and a lifting connection device. The lifting device comprises a supporting structure, the supporting structure comprises at least one supporting assembly, the supporting assembly is used for containing a base plate, each supporting assembly comprises a first base, the first base is provided with a plurality of sets of supporting units, and the supporting units are connected with the base plate; the lifting structure comprises a driving part, the output end of the driving part is provided with a steering assembly, the steering assembly is connected with at least one lifting assembly and converts rotary motion into vertical motion, and the lifting assemblies are connected with the first base so as to drive the base plate to ascend or descend. According to the utility model, the single driving piece drives the lifting assemblies through the steering assembly, so that synchronous lifting of multiple supporting points is ensured, and inclination or clamping stagnation of the substrate is avoided; the steering assembly converts the horizontal rotating motion of the driving piece into the vertical direction, and the problem that the precision of a traditional pneumatic / hydraulic system is insufficient due to pressure fluctuation is solved.

This invention provides an automated suturing device and robotic platform for oral surgery, relating to the field of oral medical device technology. It includes an operating table with an operation window on its central surface. A rotating assembly is located at the top of the operation window. The rotating assembly includes a toothed ring rotatably mounted around the operation window. A movable frame is fixed to the top of the toothed ring. A needle-threading assembly is located inside the operation window, including a first sliding frame. Compared to existing technologies, the needle-threading assembly and clamping assembly are mounted on the operating table and can be adjusted according to the patient's wound position. After connecting the suture to the suture hook, the suture passes through both sides of the wound under the drive of the needle-threading assembly. The clamping assembly pulls out the suture hook and cuts and knots the suture, facilitating precise positioning and suturing of the oral wound, saving manpower and improving efficiency.

The invention belongs to the technical field of traffic safety guidance, and particularly relates to a traffic intersection passing vehicle and pedestrian indicating and guiding device. Comprising a movable base and a protection box; an information display assembly is arranged on the protection box; the information display assembly comprises a display, a warning light bar and a warning light board; a first rocker arm and a second rocker arm are hinged to the top of the protection box, the first rocker arm is connected with a driving motor in the protection box, the first rocker arm and the second rocker arm are crossed, a linkage rod is hinged between the top ends of the first rocker arm and the second rocker arm, a supporting disc is installed on the linkage rod, and the displayer is installed on a rotating base on the supporting disc. A balancing weight is mounted at the lower end of the display; drooping lifting lugs are arranged on the left side and the right side of the linkage rod on the supporting disc, and the warning light board is hinged to the lifting lugs; multi-angle self-adaptive inclination of the display is realized through linkage of the rocker arm, and a picture is kept upright in combination with a balancing weight; meanwhile, the corresponding camera pictures are switched according to the inclination direction, the visual blind area is effectively eliminated, and the traffic safety is improved.