CN213799405U - Guide rail type bicycle clamping and placing device - Google Patents

Abstract

A guide rail type bicycle clamping and placing device relates to the field of shared bicycle special transport vehicles and comprises a bicycle fixing device, a double-rail bicycle placing device, a driving mechanism, a slide rail assembly and a shared bicycle, wherein the slide rail assembly is arranged on the ground of an inner storage room of a van truck, the slide rail assembly comprises a mirror image driving bearing seat, the driving mechanism comprises a connecting rod, a bicycle lifting clamping hand is arranged on the double-rail bicycle placing device, two ends of the connecting rod are respectively connected with the mirror image driving bearing seats on two slide rails, the bicycle fixing device is arranged in an area enclosed by the slide rail assembly and the driving mechanism to complete the fixed storage of the bicycle, the double-rail bicycle placing device is arranged on the slide rail assembly to complete the clamping and placing work of the shared bicycle, and the slide rail assembly helps the double-rail bicycle placing device to slide, the five parts work cooperatively, so that the dispatching efficiency of the shared bicycle is improved on the basis of improving the working environment of the shared bicycle dispatcher.

Description

Guide rail type bicycle clamping and placing device

Technical Field

The utility model belongs to the special transport vechicle field of sharing bicycle particularly, relates to a guide tracked bicycle clamp is got and is put device.

Background

In the 21 st century, with the rapid development of the economic society of China, the sharing economic mode is endless. Shared bicycle is popular in China as one of the economic modes of sharing, the last kilometer of which is played in each city, but the problem of placing and scheduling the shared bicycle is increasingly prominent. The demand of the shared bicycle is positively correlated with the regional pedestrian volume in unit time, and the demand of the shared bicycle near public areas such as shopping malls and schools with high population density is large. The shared bicycle dispatching system is a professional and suitable for effectively shunting shared bicycles in dense areas and improving the utilization rate of the bicycles, and a shared bicycle dispatcher takes charge of the career.

However, the current dispatching mode of the shared bicycle is mainly manual loading and transportation, and the most common mode is as follows: in order to increase the number of single transportation bicycles, most dispatchers can select to stack a plurality of layers of shared bicycles on one layer of bicycle and directly transport the shared bicycles without any protective binding measures. It can be easily seen that the simple and rough scheduling mode has great potential safety hazard, great labor intensity is achieved, overall transportation efficiency is low, scraping and collision among the bicycles are easily caused in the transportation process, and the service life of the shared bicycle is shortened. In the main carrier used in the shared bicycle dispatching process, besides the electric tricycle, the van is a common transportation tool, although the transportation tool improves the safety factor in the shared bicycle dispatching process, the requirement on the labor intensity of workers is still high, the bicycles are still stacked in the carriage in a crowded manner, the spatial position of the bicycles is not effectively restricted, and the problem of scraping collision between the shared bicycles is still not solved by means of ordinary van transportation. How to standardize the scheduling process of the shared bicycle, improve the working environment of the shared bicycle dispatcher and improve the scheduling efficiency of the shared bicycle so as to improve the utilization rate of the bicycle becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that the labor intensity of workers is high, the single vehicles are prone to collision and scraping, the transportation efficiency and the safety coefficient are low and the like in the existing process of dispatching, transporting and centralized putting of the shared single vehicles, a clamp capable of moving on a guide rail is additionally arranged on a van, an automatic shared single vehicle dispatching and transporting mode capable of achieving putting is provided, the labor intensity of workers in the process of dispatching and transporting the shared single vehicles is reduced, the service life of the shared single vehicles is prolonged, and standard, safe and efficient shared single vehicle dispatching and transporting are achieved.

The utility model provides a guide tracked bicycle clamp is got and is put device, includes bicycle fixing device, double track bicycle and puts device, actuating mechanism, slide rail assembly, sharing bicycle, slide rail assembly sets up subaerially between van's inside storing, slide rail assembly includes mirror image initiative bearing frame, actuating mechanism includes the connecting rod, be provided with bicycle lifting tong on the double track bicycle puts the device, the both ends of connecting rod respectively with on two slide rails mirror image initiative bearing frame links to each other, bicycle fixing device sets up slide rail assembly with in the region that actuating mechanism encloses, double track bicycle puts the device setting on the slide rail assembly.

In some embodiments, the bicycle fixing device comprises a bicycle clamping groove, a scissor fork, a motor screw rod, a mounting seat, a nut sliding rail, a scissor fork fixing hole and a nut, the main body of the bicycle clamping groove is rectangular, a plurality of triangular holes with equal intervals are formed on the side wall of the bicycle clamping groove, the bottom of the bicycle clamping groove is provided with the sharing bicycle frame fixing holes, the two mounting seats are fixed on the ground of the van, the distance between the two mounting seats is larger than the length of the scissors fork, the two mounting seats are symmetrically distributed around the scissors fork, the mounting seat is provided with a scissor connecting rod, the mounting seat at one side is provided with the motor screw rod, the motor screw is provided with the nut, the nut penetrates through the nut sliding rail through the scissor connecting rod and is connected with the scissor, and the fixing bolt penetrates through the scissor fixing hole to fix the two scissor.

In some embodiments, the slide rail assembly includes a pulley rolling groove, a mirror image active bearing seat, and two slide rails, two ends of the slide rail are respectively provided with one mirror image active bearing seat, and the pulley rolling groove is arranged along the slide rail.

In some embodiments, the double-track single-vehicle placing device comprises a micro electric cylinder, a mirror image push rod, a single-vehicle lifting gripper, a turn-back type servo electric cylinder electric push rod, a first sliding groove, a second sliding groove, a gripper roller, a micro electric cylinder push rod fixing roller, a micro electric cylinder push rod, a roller, a slider, a push rod, a micro electric cylinder mounting plate, a single-vehicle lifting gripper lifting frame and a limit nut, wherein the roller is connected with a pulley rolling groove, the slider is arranged on the roller, the turn-back type servo electric cylinder electric push rod is arranged on the slider, the turn-back type servo electric cylinder electric push rod comprises a servo motor and a lead screw, the turn-back type servo electric cylinder electric push rod is connected with the single-vehicle lifting gripper lifting frame, an upper baffle plate and a lower baffle plate are arranged on the single-vehicle lifting gripper lifting frame, and the micro electric cylinder mounting plate is arranged on the lower baffle plate, the miniature electric cylinder is placed on the miniature electric cylinder mounting panel, be formed with respectively on two upper and lower baffles of bicycle lift tong crane first spout with the second spout, four clamping feet of bicycle lift tong are followed first spout with the second spout slides, and certain contained angle all exists in two sets of spouts, be provided with the bicycle on the miniature electric cylinder and lift the tong connecting rod, be provided with between two splint of bicycle lift tong the tong roller with miniature electric cylinder push rod fixed roller, the bicycle lift the tong connecting rod with miniature electric cylinder push rod fixed roller links to each other, the tong roller with the tire of sharing bicycle meets.

In some embodiments, the driving mechanism includes a motor, a planetary reducer, a coupler, a connecting rod support, a fixing plate, and connecting rods, one end of each connecting rod is connected to the mirror driving bearing seat through the coupler, two ends of each connecting rod, which face away from the mirror driving bearing seat, are respectively connected to the planetary reducer, the fixing plate is disposed on the side surface of the planetary reducer, the connecting rods are connected to the coupler through the fixing plate, the motor is disposed on the upper surface of the planetary reducer, the connecting rod support is disposed on the connecting rods, and the connecting rod support is fixed on the ground of the storage room inside the van.

In some embodiments, a steel wire fixing hole is formed in a side surface of the sliding block, the steel wire fixing hole penetrates through the sliding block along the direction of the sliding rail, fixed pulleys are respectively arranged in two mirror image driving bearing seats of one sliding rail assembly, one end of a steel wire penetrates out of the fixed pulley in the mirror image driving bearing seat and is connected to the fixed pulley in the mirror image driving bearing seat at the other end of the sliding rail assembly through the steel wire fixing hole, and the steel wire winds around the sliding rail assembly for a circle and finally returns to the fixed pulley in the initial mirror image driving bearing seat.

The utility model relates to a guide rail type bicycle clamping and placing device, which relates to the field of shared bicycle special transport vehicles, and comprises a bicycle fixing device, a double-rail bicycle placing device, a driving mechanism, a slide rail assembly and a shared bicycle, wherein the slide rail assembly is arranged on the ground of an inner storage room of a van truck, the slide rail assembly comprises a mirror image driving bearing seat, the driving mechanism comprises a connecting rod, a bicycle lifting clamping hand is arranged on the double-rail bicycle placing device, two ends of the connecting rod are respectively connected with the mirror image driving bearing seats on two slide rails, the bicycle fixing device is arranged in an area enclosed by the slide rail assembly and the driving mechanism to finish the fixed storage of a bicycle, the double-rail bicycle placing device is arranged on the slide rail assembly to finish the clamping and placing work of the shared bicycle, the slide rail assembly helps the double-rail bicycle placing device to slide, the five parts work cooperatively, so that the dispatching efficiency of the shared bicycle is improved on the basis of improving the working environment of the shared bicycle dispatcher.

The utility model has the advantages that:

1. the guide rail type bicycle clamping and placing device achieves automatic placing of a shared bicycle in a van truck, the clamp has an automatic enclasping function, and the structure of the clamp is optimized by installing the clamping hand rollers.

2. The utility model provides a guide tracked bicycle presss from both sides and gets puts device, helps reduce the artifical intensity of labour in the sharing bicycle scheduling transportation, extension sharing bicycle life, realizes standard, safe, efficient sharing bicycle scheduling transportation.

3. The utility model provides a guide tracked bicycle clamp is got and is put device, be provided with on the slider the servo electronic jar electric putter of formula of turning back, the servo electronic jar electric putter of formula of turning back includes servo motor and lead screw, drives lead screw (worm gear) rotation through servo motor, turns into linear motion through the nut, realizes the back and forth movement for accomplish the accurate push-and-pull of various equipment, closed, the control of taking off and landing.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is an overall mechanism diagram of a guide rail type bicycle clamping and placing device according to an embodiment of the present invention;

fig. 2 is a partially enlarged schematic view of a bicycle fixing device of a guide rail type bicycle clamping and placing device according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a bicycle clamping and placing device of a guide rail type bicycle clamping and placing device according to an embodiment of the present invention;

fig. 4 is a partially enlarged schematic view of reference character a in fig. 1.

Reference numerals:

1. a bicycle fixing device; 2. a double-track single-vehicle placing device; 3. a drive mechanism; 4. a slide rail assembly; 5. sharing a bicycle; 11. a bicycle card slot; 12. shearing a fork; 13. a motor lead screw; 14. a mounting seat; 15. A nut slide rail; 16. a scissor fixing hole; 17. a nut; 21. a miniature electric cylinder; 22. mirror image push rods; 23. lifting the clamping hand by the bicycle; 24. a return type servo electric cylinder electric push rod; 25. a first chute; 26 a second runner; 27. a grip roller; 28. the miniature electric cylinder push rod fixes the roller; 29. a miniature electric cylinder push rod; 211. a roller; 212. a slider; 213. a push rod; 214. a miniature electric cylinder mounting plate; 215. a lifting frame for lifting the clamping hand by a bicycle; 216. a limit nut; 31. a motor; 32. a planetary reducer; 33. a coupling; 34. a connecting rod support; 36. a fixing plate; 37. a connecting rod; 41. rolling a groove by using a pulley; 42. mirror image initiative bearing frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 4, the utility model relates to a guide rail type bicycle clamping and placing device, which comprises a bicycle fixing device 1, a double-rail bicycle placing device 2, a driving mechanism 3, a slide rail assembly 4 and a sharing bicycle 5, wherein the slide rail assembly is arranged on the ground of an inner storage room of a van truck, the slide rail assembly comprises a mirror image driving bearing seat 42, the driving mechanism comprises a connecting rod 37, a bicycle lifting and clamping hand 23 is arranged on the double-rail bicycle placing device, two ends of the connecting rod are respectively connected with the mirror image driving bearing seats on two slide rails, the bicycle fixing device is arranged in an area enclosed by the slide rail assembly and the driving mechanism to complete the fixed storage of a bicycle, the double-rail bicycle placing device is arranged on the slide rail assembly to complete the clamping and placing work of the sharing bicycle, the slide rail assembly helps the double-rail bicycle placing device to slide and move, the front wheel and the rear wheel of the shared bicycle are fixedly arranged on the lifting clamping hands of the bicycle, the double-track bicycle placing device finishes clamping and carrying work of the shared bicycle, and the five parts are mutually matched to work, so that the dispatching efficiency of the shared bicycle is improved on the basis of improving the working environment of a dispatcher of the shared bicycle.

In the embodiment of the utility model, the bicycle fixing device comprises a bicycle clamping groove 11, a scissor fork 12, a motor lead screw 13, a mounting seat 14, a nut slide rail 15, a scissor fork fixing hole 16 and a nut 17, the main body of the bicycle clamping groove is rectangular, a plurality of triangular holes with equal spacing are formed on the side wall of the bicycle clamping groove, the bottom of the bicycle clamping groove is provided with the sharing bicycle frame fixing hole, two mounting seats are fixed on the ground of a van truck, the distance between the two mounting seats is larger than the length of the scissor fork, the two mounting seats are symmetrically distributed about the scissor fork, a scissor fork connecting rod is arranged on the mounting seat to complete the mounting and fixing work of the mounting seat and the scissor fork, one mounting seat is provided with the motor lead screw, the nut is arranged on the motor lead screw, the nut passes through the scissor fork connecting rod, the nut slide rail is connected with the scissor fork, and the fixing bolt penetrates through the shear fork fixing holes to fix the two shear forks.

Further, in this embodiment, the specific use effect of the bicycle fixing device is as follows: after the shared bicycle finishes the clamping and placing process, the motor lead screw starts to work, the nut slides along the nut slide rail, the moving direction of the nut is back to the mounting seat, and the shearing forks bend upwards and are fixed on the shared bicycle in a crossed mode.

The utility model discloses an in the embodiment, the slide rail assembly is including pulley raceway 41, mirror image initiative bearing frame 42, two slide rails, the both ends of slide rail respectively are provided with one mirror image initiative bearing frame follows the slide rail is provided with the pulley raceway.

In the embodiment of the present invention, the double-track single-vehicle placing device comprises a micro electric cylinder 21, a mirror image push rod 22, a single-vehicle lifting gripper 23, a turn-back servo electric cylinder electric push rod 24, a first chute 25, a second chute 26, a gripper roller 27, a micro electric cylinder push rod fixing roller 28, a micro electric cylinder push rod 29, a roller 211, a slider 212, a push rod 213, a micro electric cylinder mounting plate 214, a single-vehicle lifting gripper crane 215, and a limit nut 216, wherein the roller is connected with a pulley rolling groove, the roller moves back and forth on the pulley rolling groove, the roller is provided with the slider, the slider is provided with the turn-back servo electric cylinder electric push rod, the turn-back servo electric cylinder electric push rod comprises a servo motor and a lead screw, the lead screw (worm gear) is driven by the servo motor to rotate, and is converted into linear motion through the nut, the reciprocating motion is realized, the precise push-pull, closing and lifting control of various devices are completed, the electric push rod of the turn-back type servo electric cylinder is connected with the lifting frame of the lifting clamp of the bicycle, the lifting frame of the lifting clamp of the bicycle is provided with an upper baffle plate and a lower baffle plate, the lower baffle plate is provided with the mounting plate of the miniature electric cylinder, the miniature electric cylinder is placed on the mounting plate of the miniature electric cylinder, the upper baffle plate and the lower baffle plate of the lifting frame of the lifting clamp of the bicycle are respectively provided with the first chute and the second chute, four clamping feet of the lifting clamp of the bicycle slide along the first chute and the second chute, two groups of chutes both have certain included angles, the connecting rod of the lifting clamp of the bicycle is provided with a roller for fixing the clamping hand and the push rod of the miniature electric cylinder between the two clamping plates of the lifting clamp of the bicycle, the bicycle lifting clamping hand connecting rod is connected with the miniature electric cylinder push rod fixing roller, and the clamping hand roller is connected with a tire of the shared bicycle.

The utility model discloses a device is put to double track bicycle's concrete result of use: along with the continuous horizontal propulsion of the bicycle lifting tong connecting rods on the two sides, when the wheels and the clamps are about to be tightly jacked, due to the existence of the tong rollers, rolling friction exists between the clamps and the wheels, the bicycle lifting tong connecting rods can easily overcome friction resistance to continue to be propelled forwards, the distance between the clamping plates of the pair of bicycle lifting tongs is continuously shortened, and therefore the bicycle is slightly lifted, and finally the purpose of tightly holding the wheels is achieved.

The utility model discloses an in the embodiment, actuating mechanism includes motor 31, planetary reducer 32, shaft coupling 33, connecting rod support 34, fixed plate 36, connecting rod 37, the one end of connecting rod is passed through the shaft coupling links to each other two with mirror image driving bearing seat the connecting rod dorsad the one end of mirror image driving bearing seat respectively with planetary reducer links to each other, be provided with on planetary reducer's the side the fixed plate, the connecting rod passes through the fixed plate with the shaft coupling links to each other, planetary reducer's upper surface is provided with the motor, be provided with on the connecting rod support, the connecting rod support is fixed subaerial between van's inside storing.

Further, among the device is put to double track bicycle, the side of slider is provided with the steel wire fixed orifices, and the steel wire fixed orifices is followed the slide rail direction runs through the slider, one slide rail assembly's two be provided with the fixed pulley in the mirror image driving bearing seat respectively, the one end of steel wire is followed fixed pulley in the mirror image driving bearing seat is worn out to be connected to through the steel wire fixed orifices slide rail assembly other end on the fixed pulley in the mirror image driving bearing seat, the steel wire winds slide rail assembly a week is got back to the fixed pulley in the initial mirror image driving bearing seat at last, and the fixed pulley drives the steel wire and pulls the device is put to the double track bicycle accomplishes and removes.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.

Claims (6)

1. The utility model provides a guide tracked bicycle clamp is got and is put device, includes bicycle fixing device, double track bicycle and puts device, actuating mechanism, slide rail assembly, sharing bicycle, its characterized in that, the slide rail assembly sets up subaerially between van's inside storing, the slide rail assembly includes mirror image initiative bearing frame, actuating mechanism includes the connecting rod, double track bicycle is put and is provided with the bicycle on the device and lifts the tong, the both ends of connecting rod respectively with two slide rails on the mirror image initiative bearing frame links to each other, bicycle fixing device sets up the slide rail assembly with in the region that actuating mechanism encloses, double track bicycle is put the device and is set up on the slide rail assembly.

2. The guide rail type bicycle clamping and placing device according to claim 1, wherein the bicycle fixing device comprises a bicycle clamping groove, a scissor fork, a motor screw, mounting seats, a nut slide rail, a scissor fork fixing hole and a nut, the bicycle clamping groove is rectangular in main body shape, a plurality of triangular holes are formed in the side wall of the bicycle clamping groove at equal intervals, a shared bicycle frame fixing hole is formed in the bottom of the bicycle clamping groove, the two mounting seats are fixed on the ground of a van truck, the distance between the two mounting seats is larger than the length of the scissor fork, the two mounting seats are symmetrically distributed around the scissor fork, a scissor fork connecting rod is arranged on each mounting seat, the motor screw is arranged on the mounting seat on one side, the nut is arranged on the motor screw, and the nut passes through the nut slide rail through the scissor fork connecting rod to be connected with the scissor fork, and the fixing bolt penetrates through the shear fork fixing holes to fix the two shear forks.

3. The device as claimed in claim 1, wherein the slide rail assembly comprises a pulley rolling groove, a mirror-image active bearing seat, and two slide rails, wherein the two ends of the slide rail are respectively provided with the mirror-image active bearing seat, and the pulley rolling groove is arranged along the slide rail.

4. The guide rail type bicycle clamping and placing device according to claim 1, wherein the double-rail bicycle placing device comprises a micro electric cylinder, a mirror image push rod, a bicycle lifting tong, a turn-back type servo electric cylinder electric push rod, a first chute, a second chute, a tong roller, a micro electric cylinder push rod fixing roller, a micro electric cylinder push rod, a roller, a slider, a push rod, a micro electric cylinder mounting plate, a bicycle lifting tong lifting frame and a limit nut, wherein the roller is connected with a pulley rolling groove, the slider is arranged on the roller, the turn-back type servo electric cylinder electric push rod is arranged on the slider, the turn-back type servo electric cylinder electric push rod comprises a servo motor and a lead screw, the turn-back type servo electric cylinder electric push rod is connected with the bicycle lifting tong lifting frame, an upper baffle plate and a lower baffle plate are arranged on the bicycle lifting tong lifting frame, be provided with down on the baffle miniature electronic jar mounting panel, miniature electronic jar is placed on the miniature electronic jar mounting panel, be formed with respectively on the two upper and lower baffles of bicycle lift tong crane first spout with the second spout, four contained feet edges of bicycle lift tong first spout with the second spout slides, and certain contained angle all exists in two sets of spouts, be provided with bicycle lift tong connecting rod on the miniature electronic jar, be provided with between two splint of bicycle lift tong the tong roller with miniature electronic jar push rod fixed roller, bicycle lift tong connecting rod with miniature electronic jar push rod fixed roller links to each other, the tong roller with the tire of sharing bicycle meets.

5. The guide rail type bicycle clamping and placing device according to claim 1, wherein the driving mechanism comprises a motor, a planetary reducer, a coupler, a connecting rod support, a fixing plate and connecting rods, one end of each connecting rod is connected with the mirror image driving bearing seat through the coupler, one ends of the two connecting rods, which are back to the mirror image driving bearing seat, are respectively connected with the planetary reducer, the fixing plate is arranged on the side surface of the planetary reducer, the connecting rods are connected with the coupler through the fixing plate, the motor is arranged on the upper surface of the planetary reducer, the connecting rod support is arranged on the connecting rod, and the connecting rod support is fixed on the ground of an inner storage room of the van.

6. The device as claimed in claim 4, wherein a steel wire fixing hole is formed in a side surface of the slider, the steel wire fixing hole penetrates through the slider along the direction of the slide rail, fixed pulleys are respectively arranged in two mirror image driving bearing seats of one slide rail assembly, one end of a steel wire penetrates out of the fixed pulley in the mirror image driving bearing seat and is connected to the fixed pulley in the mirror image driving bearing seat at the other end of the slide rail assembly through the steel wire fixing hole, and the steel wire finally returns to the fixed pulley in the original mirror image driving bearing seat after winding around the slide rail assembly for one circle.

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