52results about How to "Improve rotational stability" patented technology

The invention relates to the technical field of laser measurement, in particular to a pivot base multi-dimensional error detection device based on laser scanning, which comprises a laser measurement device and an intermittent annular conveying device, a plurality of tooling plates are arranged on the intermittent annular conveying device, a driving assembly is arranged on the intermittent annular conveying device, and the driving assembly is connected with the laser measurement device. A mounting box is arranged on the tool plate, and an angle conversion assembly and a rotating assembly are arranged in the mounting box; through organic cooperation of three core mechanisms of transmission and driving time sequence cooperation, rotation and revolution mode switching and layered elastic driving, key problems of multi-degree-of-freedom cooperative control, single ball head motion function, driving failure in an inclined state and the like of an existing laser measurement system are effectively solved. And the completeness of workpiece three-dimensional form and position error detection is obviously improved.

The riding wheel seat convenient to disassemble and assemble comprises a base and a rotating shaft, the base is provided with a first supporting table and a second supporting table, the first supporting table is provided with a limiting matching hole, the second supporting table is provided with a penetrating hole, the side wall of the limiting matching hole is provided with an arc-shaped face and a limiting plane which are connected with each other, and the rotating shaft is arranged on the arc-shaped face. A limiting part is arranged at one end of the rotating shaft, the limiting part is matched with the limiting matching hole, the limiting part is provided with an abutting plane attached to the limiting plane, and the other end of the rotating shaft is matched with the penetrating hole. Compared with the prior art, the structure is simple, the rotating shaft can be fully limited, and disassembly and assembly are more convenient and faster.

The application discloses an active unloading type liquid static pressure spindle and relates to the technical field of liquid static pressure spindles.The active unloading type liquid static pressure spindle comprises a spindle, a tray is fixedly arranged at the upper end of the spindle, a conical roller bearing is fixedly arranged at the lower part of the spindle, a radial bearing is fixedly arranged between the tray and the conical roller bearing on the spindle, an inner shell is sleeved outside the radial bearing and the conical roller bearing, a ring-shaped groove is oppositely formed in the middle of the upper and lower end faces of the inner shell, and an upper cover plate and a lower cover plate are respectively fixedly installed in the ring-shaped groove.The radial bearing limits the spindle in the radial direction, the conical roller bearing limits the spindle in the radial direction and the axial direction, the spindle is prevented from being displaced in the axial direction and the radial direction during operation, the transmission efficiency of the spindle and the stability of operation are improved, the machining precision of the machined objects on the tray is prevented from being affected, the appearance of defective products caused by precision is reduced, and the machining quality is improved.

The utility model provides a kind of blanking device of lock detection, including the divider turntable and blanking frame being installed on detection platform, divider turntable includes fixed inner disc and movable outer disc, at least one blanking station is provided on movable outer disc and at least 6 fixed tool are evenly distributed, blanking station is equipped with blanking frame at corresponding detection platform, blanking assembly is installed on blanking frame, blanking assembly includes servo rotation part, material taking part and transmission part, servo rotation part drives material taking part to transfer the lock that has been measured on blanking station to transmission part to collect, transmission part is equipped with OK conveying line and NG conveying line, saving bin to prevent NG piece outflow is equipped on NG conveying line, saving bin is equipped with touch password lock, the utility model breaks through sorting efficiency, realizes flexible sorting and NG piece forced control enhancement.

This invention relates to the field of norfloxacin production technology, specifically disclosing a filtration device for norfloxacin production, comprising: a perforation mechanism disposed inside a filter cylinder for perforating the filter cloth, the perforation mechanism being located below the filter cloth, the perforation mechanism including a gas conveying component for conveying gas and a perforation component for conveying gas to the filter cloth, the perforation component being mounted on and communicating with the gas conveying component, and the perforation component being provided with an outlet hole for discharging gas to the filter cloth; the filtration device for norfloxacin production of this invention, wherein the gas conveying component conveys air into the perforation component, the air entering the perforation component is blown toward the filter cloth under the guidance of the outlet hole, so that the air passes through the filter pores on the filter cloth, thereby perforating the filter pores on the filter cloth, improving the filtration efficiency of the raw material mixture, and eliminating the need for frequent filter cloth replacement, thus improving the working efficiency of the filtration device.

The utility model provides a rotor transmission structure and a screw compressor. The rotor comprises a male rotor arranged in an axial rotation mode and a plurality of female rotors arranged around the male rotor, the transmission structure comprises a driving gear, and the driving gear is installed on the shaft section of the male rotor; each driven gear is mounted on the shaft section of each female rotor, so that the plurality of driven gears are arranged around the driving gear and are meshed with the driving gear; and the inner gear ring is arranged around the driven gears and engaged with the driven gears. When the driven gear is meshed with the inner gear ring and the driving gear at the same time, the rotation stability of the driven gear is obviously improved. When the rotor rotates reversely, the reverse contact face of the driven gear can be connected with the inner gear ring or the driving gear more quickly, the response speed of the reverse contact face is earlier than that of tooth face contact generated by reverse movement of the rotor body, and therefore the tooth face collision fault caused by sudden change of the movement direction of the rotor is avoided.

The utility model provides a kind of low-resistance ITO film slitting equipment, including round knife group, and one side of round knife group is provided with mounting rod, at least one group of slitting assembly is provided on the outside wall of mounting rod, for the secondary cutting of uncut film material, slitting assembly includes fixed plate slidingly connected on mounting rod, and one end of fixed plate is rotatably connected with transmission rod, and one end of transmission rod is provided with slitting knife, the cutting edge of each slitting knife is coaxially arranged with the cutting edge of each corresponding round knife, to ensure that the cutting position of uncut film material and slitting knife cutting position are completely coincident, the utility model is equipped with slitting assembly on one side of round knife group, and the cutting edge of slitting knife and corresponding round knife is coaxial, can be aimed at round knife blade wear, tension anomaly leads to uncut film material to carry out accurate secondary cutting, ensure that cutting position coincides, avoid tearing film material when winding due to tension accumulation, solve quality problem, improve yield, reduce cost.

The utility model belongs to the technical field of medicine taking grippers, and particularly relates to a rapid medicine dispensing machine medicine taking gripper based on flexible gripping, which comprises a base plate, a rotating motor is mounted on the base plate, the output end of the rotating motor is fixedly connected with a rotating disc, a support is mounted at the top of the rotating disc, a first motor is mounted in the support, and a second motor is mounted in the first motor. The output end of the first motor is fixedly connected with a first force arm. According to the manipulator, three-dimensional space positioning of the tail end of the gripper is achieved through the rotating motor and the multi-joint force arm, the horizontal operation range can be enlarged, and the gripping angle can be accurately adjusted; the arc-shaped active clamping jaw and the auxiliary clamping jaw are matched with the connecting rod, the U-shaped rotating rod and the closing plate, so that flexible wrapping and grabbing can be realized by fitting the shape of the medicine, the contact stress is reduced, and the damage risk is reduced; and the rotating stability is improved through the design of a base plate supporting column and balls, the grabbing efficiency can be improved through the overall scheme, multi-shape medicine compatibility can be achieved, and the requirements of automatic medicine dispensing for efficiency and safety are met.

The utility model relates to a low-carbon asphalt mixing device for bridge construction, and belongs to the technical field of bridge construction. The low-carbon asphalt mixing and stirring device for bridge construction comprises a supporting frame, and a stirring barrel is mounted on the inner wall of the supporting frame; the stirring mechanism capable of uniformly mixing asphalt to improve the mixing effect of the device is arranged on the inner wall of the stirring barrel; when the mixing drum mixes asphalt, the mixing drum stirs the asphalt through rotation of spiral blades in the mixing drum, two spiral rods in the mixing drum can rotate in opposite directions through mutual cooperation of two gears, and the two spiral rods are mutually matched to generate shearing force to crush and mix the asphalt, so that the mixing effect of the asphalt is improved; the servo motor can drive the two gears to rotate, the temperature sensor can monitor the temperature of asphalt in real time, the fixing plate can improve the rotation stability of the screw rod, the asphalt can be evenly mixed, and the mixing effect of the asphalt mixing device is improved.

The application discloses an EPS auxiliary control method for U-turn, comprising the following steps: step S1, receiving a request signal and obtaining sensor data; the request signal comprises a request activation signal, a request angle signal and a request angular velocity signal; the sensor data comprises a hand torque, a motor torque, a vehicle speed, a steering wheel rotation angle and a steering wheel rotation speed; step S2, judging a current U-turn state according to the request signal and the sensor data, and setting a U-turn state flag bit; step S3, calculating an auxiliary torque and outputting the auxiliary torque according to the U-turn state flag bit, the request signal and the sensor data; and step S4, controlling an EPS motor to assist the U-turn according to the auxiliary torque. The application prevents the vehicle from rotating inaccurately or unstably due to the driver intervention or the change of the wheel angle during the rapid rotation of the vehicle body during the U-turn, and effectively improves the rotation stability and the driving safety by providing a suitable motor torque through the EPS.

The utility model discloses a medicine inspection liquid separation filter device, including base and centrifugal cylinder, the upper end of base center position is fixedly connected with the protective cover, the right side upper end of base is fixedly connected with the support seat, the upper end of the support seat is fixedly provided with the drive motor, and the drive motor is fixedly connected with the centrifugal cylinder. And a rotating shaft is fixedly connected to a driving shaft of the driving motor, and the rotating shaft horizontally and rotatably penetrates through the protective cover. According to the utility model, the plurality of test tubes respectively penetrate through the plurality of circular through holes in the annular block and are respectively inserted into the arc-shaped slots in the plurality of cylindrical seats, so that the test tubes can be conveniently and quickly positioned in the centrifugal cylinder, the structure is simple and practical, and the rotating rod is driven to rotate by the driving motor; the rotating rod drives the centrifugal barrel to stably rotate under the limiting action of the ball on the limiting block and the annular limiting groove, so that the rotating stability of the test tube in the centrifugal barrel is improved, and liquid medicine in the test tube is prevented from spilling out.

This invention discloses a three-axis rotation assistive device for VR, belonging to the category of VR motion-sensing simulation devices. The device includes a support frame, a three-axis rotation mechanism, and a seat assembly. The three-axis rotation mechanism is composed of nested horizontal rotation, left-right rotation, and pitch rotation mechanisms. The horizontal rotation mechanism uses a conical bearing assembly, combining rotational transmission and vertical support to achieve 360° rotation. The left-right and pitch rotation mechanisms employ a modular drive system using arc-shaped tracks, gear racks, and rollers, eliminating the need for a gearbox. The maximum swing angle for both left-right and pitch rotation is 30°. This invention designs the range of motion based on human posture recognition, avoiding the risk of inversion, reducing torque and power requirements, resulting in a compact and lightweight structure, precise control, convenient maintenance, and improved safety and comfort, making it suitable for home VR motion-sensing scenarios.

This utility model discloses a steel bar processing equipment for construction engineering, including a bending machine body, a protective component, and a pushing component. The protective component includes a bending disc disposed on top of the bending machine body. A support block is fixedly connected to the rear side of the bending machine body. A protective frame is movably connected to the top of the bending machine body via a hinge. The protective frame is located on top of the bending disc. A magnet is fixedly connected to the top of the bending machine body, and the rear side of the magnet is attracted to the front side of the protective frame. An observation window is fixedly connected to the top of the protective frame, and a handle is fixedly connected to the top of the protective frame. The surface of the handle is provided with anti-slip texture. This utility model utilizes the protective component to protect the bending disc and the steel bar, preventing the steel bar and the bending component from being exposed to the outside environment during bending, avoiding contact between external objects and the operating bending component, and preventing debris generated during bending from flying everywhere, thus ensuring high safety.

The utility model discloses a frame body structure of a cooling fan, which comprises a fan body, the fan body comprises a fan frame body, a fan device arranged in the fan frame body and a water tank arranged at the lower end of the fan frame body, the fan frame body is respectively provided with an air inlet and an air outlet, and the fan frame body is arranged in a circular shape. The lower end of the fan frame extends to be provided with a connecting part used for being connected with a water tank, the front end and the rear end of the fan frame are provided with an impeller assembly and a dustproof filter plate, an air inlet groove used for arranging the dustproof filter plate is formed in the fan frame along the air inlet, and an air outlet groove used for arranging an impeller is formed in the fan frame along the air outlet. The fan is reasonable in structural design, the fan is tightly and conveniently connected with a water tank through the circular connecting part at the lower end of the fan frame body, water leakage is avoided, the impeller assembly greatly improves impeller rotation stability, noise and collision are reduced, the service life is prolonged, the protective cover is rotationally clamped with the fixing clamping groove through the clamping teeth, installation and disassembly are convenient, and use is convenient. And later maintenance and replacement are facilitated.

The utility model discloses a vehicle-mounted central control entertainment screen rotating device, and relates to the technical field of entertainment screen rotating devices. The device comprises a mounting base, a driving bin is formed in the mounting base, one end of the mounting base is rotationally connected with an adjusting gear, one end of the mounting base is rotationally connected with an annular rotating seat, the interior of the annular rotating seat is fixedly connected with an adjusting gear ring, and one end of the adjusting gear is mounted in the annular rotating seat and engaged with the adjusting gear ring; and one side of the annular rotating seat is fixedly connected with a connecting seat. When the rotating assembly is started to drive the adjusting gear to be engaged with the adjusting gear ring, the diameter difference between the adjusting gear and the adjusting gear ring is utilized to drive the annular rotating seat to rotate at a reduced speed, and meanwhile, the annular rotating seat drives the connecting seat to cooperate with the L-shaped connecting plate to drive the central control screen to deflect at a reduced speed, so that the deflection stability of the central control screen is effectively improved; and the situation that the use experience is affected due to the fact that the central control screen shakes or deviates in the rotating process is reduced.

The utility model discloses a multi-directional climbing device for a transmission tower, which comprises a multi-directional climbing module and a base. The multi-directional climbing module includes a clamping mechanism, a climbing mechanism and a steering mechanism. Among them, the clamping mechanism and the climbing mechanism are connected through the steering mechanism. The clamping mechanism is used to clamp or loosen the tower during climbing; the climbing mechanism adopts a screw drive mechanism, and transmits the power of the rotating motor to the ball screw through a synchronous pulley assembly, so as to drive the ball screw platform to complete longitudinal movement; the steering mechanism is used to cooperate with the movement of the clamping mechanism during climbing, so that the device can smoothly turn when reaching the cross arm of the tower. The device of the utility model can climb and cross obstacles, is applicable to transmission towers of different structural types including main material angle steel and cross arms, has a strong load capacity, and can carry maintenance equipment to complete maintenance tasks.

The utility model discloses a rotary optical fiber clamp and an optical fiber system. The rotary optical fiber clamp comprises a fixed base, a first rotary adjusting assembly and a second rotary adjusting assembly. When the technical scheme is implemented, firstly, the knob, the worm, the worm gear and the clamping component are sequentially connected to form a high-reduction-ratio transmission structure, so that high-precision coaxial rotation control of the optical fiber is realized, and the rotation stability and the alignment precision are improved; the optical fiber is adjusted in the vertical direction through the first rotation adjusting assembly, so that the end face of the optical fiber can be conveniently focused and positioned under a microscopic system; meanwhile, the clamping component can stably clamp different types of optical fibers, is particularly suitable for axis alignment and rotation control of multi-core optical fibers, is compact in structure, easy and convenient to operate and easy to integrate, and can remarkably improve the assembly efficiency and the machining consistency in the high-precision optical machining field such as two-photon printing.

The utility model relates to the field of woven bag salt stacking, in particular to a woven bag salt loading and stacking device which comprises a fixed frame. The device comprises a fixed frame and further comprises a mounting plate, supporting legs, a rotating rod, a fixed rod, an electric push rod, a first hinge seat, a connecting rod, a second hinge seat, a limiting plate, a limiting groove and a limiting rod, a mounting frame is connected to the rear side of the upper surface of the fixed frame, a machine shell is arranged on the inner side of the mounting frame, and a connecting column is slidably connected to the bottom surface of the machine shell in a penetrating mode. The electric push rod is arranged and is matched with the first hinge seat and the second hinge seat during operation, so that the connecting rod can drive the rotating rod to turn over by 90 degrees, and meanwhile, the electric push rod is reversely supported by the connecting rod and is changed into a horizontal state from an inclined state; the electric push rod can drive the limiting rod to move upwards in the limiting groove during rotation, so that the stability of the electric push rod during rotation is improved, the fixing rods on the two sides rotate synchronously, and the woven bag salt is grabbed.

The utility model relates to target chamber technical field, specifically disclose a kind of multi-beam irradiation target chamber, including cylinder, cylinder two ends are provided with front end cap and rear end cap, front end cap is located in the one end of cylinder near beam source, and is provided with several beam source connecting cylinders on front end cap, beam control mechanism is set between beam source connecting cylinder and beam passage, the other end of beam passage extends to the region where target material is located, and target material is set in cylinder by target material positioning mechanism. Through the one-to-one correspondence of multiple beam source connecting cylinders and the beam passage in cylinder, the independent on-off control of multi-beam can be realized;Through the setting of target material positioning frame and arc clamping block, both the stability of target material in the irradiation process is ensured, and the convenient replacement of target material can be realized. The problem that the space intersection between different beams when the multi-beam passes through the rigid channel in the conventional target chamber can cause serious scattering effect and non-intended energy deposition superposition;And target material switching and attitude adjustment difficulty.

The application discloses a high-speed air static pressure spindle and belongs to the technical field of ultra-precision machining machine tools. The high-speed air static pressure spindle comprises a rotor and a workpiece seat fixedly connected with each other, a shaft sleeve sleeved on the rotor, a motor and a thrust bearing assembly located at the front end of the rotor, the shaft sleeve is sequentially provided with a front radial air static pressure bearing and a rear radial air static pressure bearing in the axial direction, the front radial air static pressure bearing and the rear radial air static pressure bearing are independent split structures, the rear radial air static pressure bearing is positioned in the shaft sleeve through a conical matching surface, and the motor is arranged between the front radial air static pressure bearing and the rear radial air static pressure bearing. The split radial air static pressure bearing structure with the centralized motor is adopted, the rear bearing is positioned through the conical matching surface, the rotor forms a simply supported beam structure, and the high-speed rotation stability of the spindle is greatly improved.

This invention discloses a pneumatically protected electric chuck structure, comprising a fixed end and a rotating unit. The rotating unit includes a rotating base, an inner ring chamber, and an outer disk. The inner ring chamber is fixed to the rotating base and the outer disk on both sides, respectively. An electric power source assembly is installed in the fixed end, driving the rotating base to rotate on one side of the fixed end. A pneumatic control mechanism is fixed in the fixed end. An actuator is slidably installed in the inner ring chamber, comprising an actuator body and three sets of sliding blocks. The pneumatic control mechanism drives the actuator body to move laterally within the inner ring chamber. The actuator body, through the three sets of sliding blocks, drives three sets of jaw arms to move centered on the front side of the outer disk to clamp materials. This invention effectively utilizes pneumatic protection to improve the safety of electric chuck operation, significantly increases the upper limit of electric chuck rotation speed, and assists in achieving pneumatic emergency stop, effectively protecting the use of the electric power source.

The application discloses a new energy automobile electric drive system performance test bench, and relates to the technical field of test equipment, which comprises an inertia simulation disc and an electric drive simulation structure, wherein the inertia simulation disc comprises an inertia disc shaft, circular mounting racks are fixedly installed at the outer sides of both ends of the inertia disc shaft, plane needle bearings are fixedly installed at opposite sides of the two circular mounting racks, support structures are arranged at opposite sides of the two plane needle bearings, the support structures comprise support bases and upper clamping boxes, and maintenance assemblies are arranged in the upper clamping boxes; the separable design of the upper clamping boxes and the support bases increases the positioning speed of the inertia simulation disc, the inertia simulation disc is quickly positioned and installed with the two support structures and the electric drive simulation structure, the inertia simulation disc can be pre-assembled by the staff, there is sufficient space for assembling the inertia simulation disc, the symmetrical arrangement of the flywheel on the inertia disc shaft is ensured to be completed, and the design rigor of the inertia simulation disc structure is improved.

The utility model relates to bathroom cabinet technical field especially relates to a rotatory side storage bathroom cabinet, include: main cabinet body, the main cabinet body forms and is provided with installation space, the installation space is provided with rotating shaft in, the inner top of installation space is provided with first connecting hole, the inner bottom of installation space is provided with second connecting hole, rotating shaft is connected in first connecting hole with second connecting hole, rotating cabinet body, rotating cabinet body has a plurality of, rotating cabinet body swing joint in rotating shaft. The utility model provides a rotatory side storage bathroom cabinet, has solved the single and fixed position of existing cabinet body structure's drawback, through setting up rotating shaft and connecting rotating cabinet body on rotating shaft, improve the flexibility of storage space, improve customer's use comfort degree.

The utility model discloses a machine head blanking device of a belt conveyor, and mainly solves the problems that additional equipment is complicated and blockage is easy to occur due to material impact caused by single fixed blanking direction of a machine head of a traditional belt conveyor. The rotation requirement of the belt conveyor head blanking rotating device is met through the slewing bearing assembly, meanwhile, the impact resistance and the abrasion resistance of the belt conveyor head blanking rotating device are greatly improved, and the service life of the belt conveyor head blanking rotating device in the severe environment is greatly prolonged. The axle of the driving wheel is rigidly supported by the bearing seat, so that transmission vibration and unbalance loading abrasion are reduced; the driving motor and the driving wheel are connected through the coupler, and efficient torque transmission is achieved. The double-layer blanking funnel, the slewing bearing assembly, the blanking barrel, the driving motor and the driving wheel are integrated on the fixed frame, and the problems of dislocation risk and vibration superposition caused by independent installation of multiple components are solved through the integrated design.

The utility model discloses a file archive frame for collecting and arranging market research data. The file archive frame comprises a frame body, radial partition plates and a rotating base. The rack body is formed by connecting at least three layers of coaxial circular shelves through vertical supporting columns, each layer of shelf is divided into a plurality of fan-shaped file containing areas through radial partition plates, and an annular rotating groove is formed in the bottom of the rotating base and can drive the rack body to rotate stably. By means of the multi-layer coaxial rotation design, fast file searching is achieved in cooperation with fan-shaped partition, and the problems that a traditional frame body needs to be surrounded for searching, and rotation is not stable are solved; materials such as the 304 stainless steel supporting column and the ABS partition plate are adopted, existing auxiliary devices such as folders and labels are matched, calibration and fixation are conducted through a screwdriver and a gradienter during installation, files can be taken and used by rotating the shelf during use, maintenance is convenient and fast, and the device is suitable for efficient arrangement and retrieval of market research data.

The utility model discloses an intra-aural hearing aid battery compartment belongs to hearing aid technical field. This kind of intra-aural hearing aid battery compartment, including lid and shell, the top of shell and the bottom of lid fixed connection, the inside of lid is equipped with battery, the top of shell is installed with PCB board, the top of PCB board is installed with copper pole plate, the outside of battery and the side of copper pole plate contact, the side of lid is equipped with opening, the inside one side of opening is equipped with battery compartment cover plate, the inside one end of battery compartment cover plate is rotatably connected with first pivot, the top of first pivot and the inside top of lid rotatably connected, the inside other side of opening is equipped with button, the inside rotatably connected with second pivot of button, the top of second pivot and the inside top of lid rotatably connected, the outside of first pivot is equipped with V type torsional spring for the battery compartment cover plate of springing open, the utility model discloses can effectively facilitate user switch battery compartment cover, and improve the service life of battery compartment, has higher practical value.

The utility model discloses a heat treatment chassis tool structure, which belongs to the technical field of chassis tools, and comprises a bottom plate, a hydraulic telescopic rod is arranged at the center of the upper end face of the bottom plate, the output end of the hydraulic telescopic rod is fixedly connected with a mounting plate, and a rotating structure is arranged at the center of the upper end face of the mounting plate. The output end of the rotating structure is fixedly connected with a placing plate, a clamping structure is arranged at the center of the upper end face of the placing plate, the rotating structure comprises a rotator, the rotator is arranged at the center of the upper end face of the mounting plate, and four supporting columns are annularly arranged on the lower end face of the mounting plate; in addition, a hydraulic telescopic rod drives the placing plate to adjust the height, a rotator enables the placing plate to rotate to achieve multi-angle heating, meanwhile, through a rotating structure, by means of the design of the supporting columns, the idler wheels and the stabilizing frames, the rotating friction force is reduced, and the rotating stability is improved; and finally, uniform heating of the workpiece is ensured.

This invention discloses a vehicle-axle coupling vibration device, relating to the field of vehicle-axle technology. It includes an inverted U-shaped steel frame, with main bearing seats fixedly connected to both outer walls of the frame. A positioning crossbar is rotatably mounted inside each main bearing seat. A first connecting arm is mounted on one side of the inverted U-shaped steel frame via the positioning crossbar. A trapezoidal seat is fixedly connected to the top of the first connecting arm. Several sets of leaf springs with progressively decreasing lengths are mounted at the bottom of the trapezoidal seat. A positioning base is fixedly connected to the bottom of each leaf spring. The outer wall of one side of the positioning base is movably connected to the bottom of the inverted U-shaped steel frame via a damping structure. This invention features a compact structure, stable operation, and effectively filters road surface vibrations, improving the device's damping and anti-vibration performance. It also allows the device to switch between independent and non-independent suspension states, meeting the needs of different road driving conditions.

The application relates to a bidirectional ratchet structure and a bidirectional ratchet wrench, wherein the bidirectional ratchet structure comprises a shell, a ratchet, a tenon, a first pawl, a second pawl, a first elastic piece, a second elastic piece and a stop block; the shell is internally provided with a cavity; the ratchet is rotatably arranged in the cavity; the tenon is fixedly connected with the ratchet; the first pawl and the second pawl are respectively arranged on the two sides of the ratchet; the first elastic piece is arranged on the side of the first pawl away from the ratchet; the two ends of the first elastic piece are respectively abutted against the inner wall of the cavity and the first pawl; the second elastic piece is arranged on the side of the second pawl away from the ratchet; the two ends of the second elastic piece are respectively abutted against the inner wall of the cavity and the second pawl; the stop block is rotatably arranged between the first pawl and the second pawl; the two ends of the stop block towards the first pawl and the second pawl are respectively provided with stop protrusions; the stop protrusions push the first pawl or the second pawl to be disengaged from the ratchet. The application has the effect of being capable of meeting more working conditions.