Automatic trolley transferring device
By designing the automatic load transfer device of the trolley, the guide structure, pulling mechanism, hoisting mechanism and load transfer mechanism are used to realize the automatic load transfer of the trolley, which solves the problems of large labor load and lumbar muscle strain caused by manual participation in the prior art. Improve the level of production automation.
Patent Information
- Application Number
- CN202323284971.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-01
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2033-12-01
AI Technical Summary
In the manufacturing process of automobile complete vehicles, the trolley transfer process requires manual participation, resulting in large labor loads for workers and easily causing lumbar muscle strain. In addition, existing automatic traction trolleys can pull two trolleys at one time, increasing the complexity of movement .
An automatic load transfer device for trolleys is designed, including a guide structure, a pulling mechanism, a hoisting mechanism and a load transfer mechanism. Through automation, the trolley is moved from the input track to the output track and placed at the entrance of the output track to the door process. The section entrance realizes the automatic transfer of trolleys.
The trolley transfer process is automated, manual participation is reduced, the space of the trolley is saved, the working environment is improved, the risk of lumbar muscle strain is reduced, and the accuracy of the trolley position is ensured through the testing mechanism.
Smart Images
Figure CN222347207U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of logistics trolley conveying and transferring, and more specifically, to an automatic trolley transferring device. Background Art
[0002] During the automobile manufacturing process, when assembling doors, the front doors and rear doors are transported by the same door line. The various parts and tools required for assembling the doors are sorted and put into the trolley, and then the trolley is moved into the entrance of the door process section and placed between the front door and the rear door. The trolley can move along the door line with the front door and the rear door to enter the next process.
[0003] In the existing technical solution, it is necessary to use an automatic traction trolley to tow the trolley to the vicinity of the entrance of the door process section, and then manually move the trolley into the entrance of the door process section. The automatic traction trolley can tow two trolleys at a time. To move the trolley manually, the two trolleys need to be unhooked and moved one by one to the entrance of the door process section. In this process, the trolley has a certain weight, and moving the trolley increases the labor load of the workers. It is necessary to bend over many times during the movement. According to the current production system, the operator of this position needs to bend over and pull the trolley up to 255 times / day. The operation is frequent and the labor load is heavy. Long-term operation is likely to cause the risk of lumbar muscle strain for the operator. Based on this background, it is imperative to design an automatic trolley transfer device to improve the on-site working environment while achieving less manpower and improving the automation of equipment in the general assembly workshop. To this end, it is necessary to design an automatic trolley transfer device. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides an automatic trolley transferring device. The trolley only needs to be put into the guide structure, and the automatic trolley transferring device can automatically move the trolley to the door line. The whole process does not require human participation, thus realizing the automation of the transferring process.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a trolley automatic transferring device, including a guide structure, a trolley pulling mechanism, a lifting mechanism and a transferring mechanism; the guide structure includes an input track and an output track, and the input track is arranged in parallel with the output track; the trolley pulling mechanism is installed on one side of the input track and is parallel to the input track; the lifting mechanism is arranged at the exit of the input track and the entrance of the output track and is used to lift or lower the trolley; the transferring mechanism is arranged between the exit of the input track and the entrance of the output track and is used to transfer the trolley located on the lifting mechanism.
[0006] In the present technical solution, after the trolley is towed by the trolley and enters the input track of the guide structure, the trolley moves along the guide structure. After the towing trolley is unhooked from the trolley in the input track, it leaves the guide structure, and then the pulling mechanism takes over the towing trolley here to pull the trolley to the exit of the input track. The exit of the input track is provided with the jacking mechanism, which lifts the trolley up to make it suspended in the air. Then the transfer mechanism extends under the trolley, the jacking mechanism descends, and the trolley is transferred to the transfer mechanism. The transfer mechanism moves the trolley from the exit of the input track to the entrance of the output track. The jacking mechanism is also provided at the entrance of the output track, and the jacking mechanism lifts the trolley again, and then the transfer mechanism moves out, and the jacking mechanism puts down the trolley again, and then the trolley is transferred to the entrance of the output track. The output track is aligned with the door line, and the entrance of the output track is at the entrance of the door process section, so the trolley is moved into the entrance of the door process section, and the trolley can enter the next process along the door line.
[0007] Preferably, the trolley pulling mechanism includes an electric cylinder, a hook assembly and a trolley blocker; the electric cylinder is installed on one side of the input track and is parallel to the input track, the hook assembly is installed on the slider of the electric cylinder, and the trolley blocker is installed at the entrance of the trolley pulling mechanism.
[0008] Preferably, the hook assembly comprises a telescopic member and a hook, the telescopic member and the hook are mounted on a slider of the electric cylinder, the telescopic end of the telescopic member is hinged to the end of the hook; the hook is rotatably connected to the slider of the electric cylinder in the horizontal direction.
[0009] Preferably, the lifting mechanism includes a lifting cylinder and a lifting platform, the lifting platform is arranged above the lifting cylinder and connected to the telescopic end of the lifting cylinder; a decoupling mechanism is also arranged on the lifting mechanism located at the outlet of the input track, and the decoupling mechanism includes a slide groove, an arch plate and a rack; the slide groove is installed on the lifting platform, the arch plate is installed on the slide groove and can be adjusted along the length direction of the slide groove; the rack is installed above the arch plate.
[0010] Preferably, the transfer mechanism comprises a transfer plate and a telescopic fork; the transfer plate is mounted on the telescopic fork, and the telescopic fork is fixed between the input track and the output track to drive the transfer plate to move between the input track and the output track.
[0011] Preferably, the input track entrance of the guide structure is in an outward-facing "X" shape; the guide structure comprises a fixed frame and a guide wheel frame; the fixed frame is installed on the ground, the guide wheel frame is installed on the fixed frame, and rollers are provided on the guide wheel frame.
[0012] Preferably, it also includes a flipping mechanism, which is used to flip up the hook of the trolley, and the flipping mechanism is arranged at the exit of the input track.
[0013] Preferably, the flipping mechanism includes a mounting frame, a second telescopic member and a lever; the second telescopic member and the lever are mounted on the mounting frame; the end of the lever is hinged to the telescopic end of the second telescopic member, the lever is provided with a fulcrum, and the lever is rotatably connected to the mounting frame in a vertical direction at the fulcrum; a cross bar is fixed to the end of the lever away from the connection point between the lever and the telescopic end.
[0014] Preferably, it also includes a detection mechanism, which includes a traction hook detection device, a trolley entry detection device and a trolley detachment and transfer mechanism detection device; the traction hook detection device is a grating, and the grating is installed on both sides of the exit of the input track of the guide structure; the trolley entry detection device is a travel switch, and the travel switch is arranged at the entrance of the door line; the trolley detachment and transfer mechanism detection device is a photoelectric switch, and the photoelectric switch is arranged on both sides of the lifting mechanism.
[0015] Compared with the prior art, the utility model has the following beneficial effects: the whole process of trolley transfer is automated, reducing manual involvement. A flipping mechanism is provided to automatically flip up the trolley hook, saving space for the trolley and making it easier to move to the entrance of the door process section. A decoupling mechanism is provided to automatically decouple the originally connected trolleys and prevent the trolley in front from moving backward. A detection mechanism is provided to automatically detect the position of the trolley, providing a basis for the automation of trolley movement. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional diagram of the automatic transfer device of the trolley of the utility model;
[0017] Figure 2 It is a three-dimensional diagram of the trolley pulling mechanism of the trolley automatic transfer device of the utility model;
[0018] Figure 3 It is a three-dimensional diagram of the turning mechanism of the automatic trolley transfer device of the utility model;
[0019] Figure 4 It is a three-dimensional diagram of the lifting mechanism and the unhooking mechanism of the automatic trolley transfer device of the utility model;
[0020] Figure 5 yes Figure 1 A partial enlarged view of point A in the middle.
[0021] In the attached drawings: 1. guide structure; 2. trolley pulling mechanism; 3. lifting mechanism; 4. transfer mechanism; 5. flipping mechanism; 11. fixed frame; 12. guide wheel frame; 21. electric cylinder; 22. hook assembly; 23. trolley blocker; 31. lifting cylinder; 32. lifting platform; 33. unhooking mechanism; 41. transfer plate; 42. telescopic fork; 51. mounting frame; 52. second telescopic member; 53. lever; 54. cross bar; 221. telescopic member; 222. hook; 331. slide groove; 332. arch plate; 333. rack. DETAILED DESCRIPTION
[0022] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.
[0023] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0024] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:
[0025] Example 1
[0026] like Figure 1As shown, a trolley automatic transfer device includes a guide structure 1, a trolley pulling mechanism 2, a lifting mechanism 3 and a transfer mechanism 4; the guide structure 1 includes an input track and an output track, and the input track and the output track are arranged in parallel; the trolley pulling mechanism 2 is installed on one side of the input track and is parallel to the input track; the lifting mechanism 3 is arranged at the exit of the input track and the entrance of the output track and is used to lift or put down the trolley; the transfer mechanism 4 is arranged between the exit of the input track and the entrance of the output track and is used to transfer the trolley located on the lifting mechanism 3. After the trolley is pulled into the input track of the guide structure 1 by the traction trolley, the trolley moves along the guide structure 1. After the traction trolley is unhooked from the trolley in the input track, it leaves the guide structure 1, and then the trolley pulling mechanism 2 takes over the traction trolley here and pulls the trolley 2 to the exit of the input track. A lifting mechanism 3 is arranged at the exit of the input track, and the lifting mechanism 3 lifts the trolley to make it suspended. Then the transfer mechanism 4 extends under the trolley, the lifting mechanism 3 descends, and the trolley is transferred to the transfer mechanism 4. The transfer mechanism 4 moves the trolley from the input track exit to the output track entrance. A lifting mechanism 3 is also provided at the output track entrance. The lifting mechanism 3 lifts the trolley again, and then the transfer mechanism 4 moves out. The lifting mechanism 3 puts the trolley down again, and then the trolley is transferred to the output track entrance. The output track is aligned with the door line, and the output track entrance is at the entrance of the door process section, so the trolley is moved into the entrance of the door process section, and the trolley can enter the next process along the door line.
[0027] like Figure 2 As shown, the trolley pulling mechanism 2 includes an electric cylinder 21, a hook assembly 22 and a trolley blocker 23; the electric cylinder 21 is installed on one side of the input track and is parallel to the input track, the hook assembly 22 is installed on the slider of the electric cylinder 21, and the trolley blocker 23 is installed at the entrance of the trolley pulling mechanism 2. When the trolley enters the input track and is unhooked from the traction trolley, the electric cylinder 21 moves to the trolley, the hook assembly 22 pulls the trolley, and then the electric cylinder 21 drives the slider to pull the trolley to move until the hook assembly 22 is unhooked from the trolley at the exit of the input track, and the electric cylinder 21 moves the hook assembly 22 back to the initial position, waiting to pull the next trolley. The trolley blocker 23 is composed of a cylinder and a blocking member, and the blocking member is installed on the telescopic rod of the cylinder. When the front trolley moves through the trolley blocker 23, the telescopic rod of the cylinder extends, and the blocking member is extended into the trolley transport track to block the rear trolley from entering and prevent the front and rear trolleys from colliding.
[0028] like Figure 2As shown, the hook assembly 22 includes a telescopic member 221 and a hook 222. The telescopic member 221 and the hook 222 are installed on the slider of the electric cylinder 21. The telescopic end of the telescopic member 221 is hinged to the end of the hook 222. The hook 222 is connected to the slider of the electric cylinder 21 in a horizontal rotation direction. When the trolley enters the predetermined position, the telescopic rod of the telescopic member 221 extends, pushing the hook 222 to rotate into the trolley transport track and hook the trolley. When the trolley moves to the exit of the input track, the telescopic member 221 contracts, pulling the hook 222 to rotate and retract, and realizes uncoupling from the trolley.
[0029] like Figure 1 , Figure 4 , Figure 5 As shown, the lifting mechanism 3 includes a lifting cylinder 31 and a lifting platform 32. The lifting platform 32 is arranged above the lifting cylinder 31 and connected to the telescopic end of the lifting cylinder 31. When the transfer mechanism 4 moves the trolley, it needs to extend into the bottom of the trolley, so the trolley needs to be lifted to create a moving space for the transfer mechanism 4, so the lifting mechanism 3 is set; the lifting mechanism 3 located at the exit of the input track is also provided with a decoupling mechanism 33, and the decoupling mechanism 33 includes a slide 331, an arch plate 332 and a rack 333; the slide 331 is installed on the lifting platform 32, the arch plate 332 is installed on the slide 331 and can be adjusted along the length direction of the slide 331; the rack 333 is installed above the arch plate 332. Since the trolley needs to be lifted for a certain distance, the length of the telescopic part in the lifting cylinder 31 should not be less than this distance. However, the distance between the bottom of the trolley and the ground is limited, and there is a lack of space for installing the lifting cylinder 31. Therefore, a lifting platform 32 is also installed on the telescopic end of the lifting cylinder 31. The lifting platform 32 can extend downward for a distance and extend into the bottom of the trolley, and lift the trolley when the telescopic end of the lifting cylinder 31 extends. A lever is provided at the rear of the trolley, and the lever will drive the hook at the rear of the trolley to unhook after the lever is rotated. The arch plate 332 is aligned with the position of the lever. When the trolley moves to the position of the lifting mechanism 3, the lever at the rear of the trolley is blocked by the arch plate 332 and rotates, thereby achieving unhooking from the rear trolley. At the same time, a rack 333 is also provided above the arch plate 332. As the trolley moves forward, the lever will also move above the rack 333 and conflict with the rack. The rack 333 can generate a supporting force on the lever to prevent the trolley from sliding backward due to uneven force on the trolley during the lifting process of the lifting mechanism 3.
[0030] like Figure 1As shown, the transfer mechanism 4 includes a transfer plate 41 and a telescopic fork 42; the transfer plate 42 is installed on the telescopic fork 42, and the telescopic fork 42 is fixed between the input track and the output track to drive the transfer plate 41 to move between the input track and the output track. When the jacking mechanism 3 located at the exit of the input track lifts the trolley, a moving-in space is formed under the trolley. The telescopic fork 42 extends the transfer plate 41 under the trolley, and then the jacking mechanism 3 located at the exit of the input track descends and breaks contact with the trolley, and the trolley is placed on the transfer plate 42. When the trolley is placed firmly, the telescopic fork 42 drives the transfer plate 41 to move the trolley from the exit of the input track to the entrance of the output track. Afterwards, the jacking mechanism 3 located at the entrance of the output track lifts the four corners of the trolley to make the trolley break contact with the transfer plate 41. The telescopic fork 42 shrinks to move the transfer plate 41 out from the bottom of the trolley. The lifting mechanism 3 located at the entrance of the output track then lowers the trolley, thereby realizing the movement of the trolley between the input track and the output track.
[0031] like Figure 1 As shown, the input track entrance of the guide structure 1 is in an outward-facing "X" shape; the guide structure 1 includes a fixed frame 11 and a guide wheel frame 12; the fixed frame 11 is installed on the ground, the guide wheel frame 12 is installed on the fixed frame 11, and rollers are provided on the guide wheel frame 12. The input track entrance is in an outward-facing "X" shape, which makes the entrance space larger and makes it easier for the trolley to enter the guide structure 1. On the one hand, the guide structure 1 can straighten the trolley whose original motion trajectory is tilted, and on the other hand, it can ensure the correct direction of motion of the trolley during the trolley transfer process. Since the guide structure 1 changes the direction of motion of the trolley through the collision between the trolley and the guide wheel frame 12, friction will be generated when the trolley and the guide wheel frame 12 collide to limit the movement of the trolley or even jam the trolley. In order to avoid this situation, rollers are also provided on the guide wheel frame 12 to reduce the friction between the guide structure 1 and the trolley.
[0032] Example 2
[0033] This embodiment is similar to the above-mentioned embodiment 1, except that: Figure 1 As shown, it also includes a flipping mechanism 5, which is used to flip up the hook of the trolley, and the flipping mechanism 5 is arranged at the exit of the input track. The trolley towing hook requires the operating staff to bend down and straighten the hook to shorten the overall length of the trolley before it can be pulled and put into the space between the two door hangers to carry out the parts distribution for the job assembly operation along the production line. During the door assembly process, the trolley will be continuously moved into the production line, and workers are required to repeat this action. Doing so for a long time can easily cause the risk of lumbar muscle strain for the operator. Therefore, it is necessary to set a flipping mechanism 5 to straighten the trolley towing hook before the trolley moves into the output track. When the trolley is pulled twice by the pulling mechanism to the exit of the input track, the flipping mechanism 5 flips up the hook of the trolley to facilitate the transfer mechanism 4 to perform the next step.
[0034] like Figure 3 As shown, the flip mechanism 5 includes a mounting frame 51, a second telescopic member 52 and a lever 53; the second telescopic member 52 and the lever 53 are mounted on the mounting frame 51; the end of the lever 53 is hinged with the telescopic end of the second telescopic member 52, and the lever 53 is provided with a fulcrum, and the lever 53 is rotatably connected to the mounting frame 51 at the fulcrum in the vertical direction; the lever 53 is fixed with a cross bar 54 at the end away from the connection point between the lever and the telescopic end. The cross bar 54 extends into the position where the hook is located in the trolley conveying track. The second telescopic member 52 is originally in a retracted state, and the lever 53 is in a flat state. When the trolley enters the preset position, the hook in front of the trolley is located above the cross bar 54. The flip mechanism 5 works. The second telescopic member 52 retracts, pulls the lever 53 to rotate upward, and drives the cross bar 54 to flip the traction hook in front of the trolley to the preset position. After flipping, the traction hook of the rear trolley will not fall. The flip mechanism 5 enters the initial state, waiting to perform a flipping operation on the traction hook of the next trolley.
[0035] Example 3
[0036] This embodiment is similar to the above-mentioned embodiment 1, except that it further includes a detection mechanism, which includes a traction hook detection device, a trolley entry detection device and a trolley detachment and transfer mechanism detection device; the traction hook detection device is a grating, which is installed on both sides of the exit of the input track of the guide structure 1; the trolley entry detection device is a travel switch, which is arranged at the entrance of the door line; the trolley detachment and transfer mechanism detection device is a photoelectric switch, which is arranged on both sides of the lifting mechanism 3. In order to realize the automation of the trolley transfer process and prevent the trolley from colliding with the equipment due to the inadequate execution result of a certain transfer process in the trolley automatic transfer device, causing losses, it is necessary to detect the execution results of the necessary processes in order to determine whether the next process is executed. The processes that need to be detected are the flipping of the traction hook, the trolley entry and the trolley detachment and transfer mechanism. If the traction hook is not turned up in place, it will cause the traction hook to fall; since the trolley is located between the two doors when it moves into the door line, if the traction hook falls, it will cause the traction hook to collide with the door; the traction hook detection device is a grating, which is installed on both sides of the exit of the input track of the guide structure 1. The trolley entry detection device is used to detect the position of the door in the door line. When the trolley moves into the door line, it is located between the two doors. The trolley needs to be aligned with the door line when it is located between the two doors before moving the trolley in; two travel switches are set at the entrance of the door line to determine the starting position and the end position of the trolley. Since the distance between the two door hangers is constant, and the width of the trolley traction hook is certain when it is aligned, the travel switch distance can be set at the entrance. When the door hanger triggers the second travel switch, the door line body will immediately pause and wait for the transfer mechanism 4 to transfer the trolley to the line body entrance and then start again to prevent the trolley transfer interference problem. A pair of photoelectric switches are set in the lifting mechanism 3 area at the entrance of the output track to detect whether the trolley is separated from the transfer mechanism 4. The lifting mechanism 3 lifts the trolley to a certain height and then separates from the transfer mechanism 4, and the transfer mechanism 4 can be retracted from under the trolley. Once the photoelectric detection trolley and the transfer mechanism 4 are not separated, the transfer mechanism is prohibited from moving to prevent the occurrence of transfer interference.
[0037] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.
Claims
1. A trolley automatic transfer device, characterized in that: The invention comprises a guide structure (1), a trolley pulling mechanism (2), a lifting mechanism (3) and a transfer mechanism (4); the guide structure (1) comprises an input track and an output track, and the input track and the output track are arranged in parallel; the trolley pulling mechanism (2) is installed on one side of the input track and is parallel to the input track; the lifting mechanism (3) is arranged at the exit of the input track and the entrance of the output track and is used to lift or lower the trolley; the transfer mechanism (4) is arranged between the exit of the input track and the entrance of the output track and is used to transfer the trolley located on the lifting mechanism (3).
2. The automatic trolley transfer device according to claim 1, characterized in that: The trolley pulling mechanism (2) comprises an electric cylinder (21), a hook assembly (22) and a trolley blocker (23); the electric cylinder (21) is installed on one side of the input track and is parallel to the input track, the hook assembly (22) is installed on a slider of the electric cylinder (21), and the trolley blocker (23) is installed at the entrance of the trolley pulling mechanism (2).
3. The automatic trolley transfer device according to claim 2, characterized in that: The hook assembly (22) comprises a telescopic member (221) and a hook (222); the telescopic member (221) and the hook (222) are mounted on a slider of the electric cylinder (21); the telescopic end of the telescopic member (221) is hinged to the end of the hook (222); the hook (222) is rotatably connected to the slider of the electric cylinder (21) in a horizontal direction.
4. The automatic trolley transfer device according to claim 1, characterized in that: The lifting mechanism (3) comprises a lifting cylinder (31) and a lifting platform (32), wherein the lifting platform (32) is arranged above the lifting cylinder (31) and connected to the telescopic end of the lifting cylinder (31); a decoupling mechanism (33) is also arranged on the lifting mechanism (3) located at the outlet of the input track, wherein the decoupling mechanism (33) comprises a slide groove (331), an arch plate (332) and a rack (333); the slide groove (331) is installed on the lifting platform (32), the arch plate (332) is installed on the slide groove (331) and can be adjusted along the length direction of the slide groove (331); the rack (333) is installed above the arch plate (332).
5. The automatic trolley transfer device according to claim 1, characterized in that: The transfer mechanism (4) comprises a transfer plate (41) and a telescopic fork (42); the transfer plate (41) is mounted on the telescopic fork (42), and the telescopic fork (42) is fixed between the input track and the output track to drive the transfer plate (41) to move between the input track and the output track.
6. The automatic trolley transfer device according to claim 1, characterized in that: The input track entrance of the guide structure (1) is in an outward-facing "X" shape; the guide structure (1) comprises a fixed frame (11) and a guide wheel frame (12); the fixed frame (11) is installed on the ground, the guide wheel frame (12) is installed on the fixed frame (11), and rollers are arranged on the guide wheel frame (12).
7. The automatic trolley transfer device according to claim 1, characterized in that: It also comprises a turning mechanism (5), the turning mechanism (5) being used to turn over the hook of the trolley, and the turning mechanism (5) being arranged at the exit of the input track.
8. The automatic trolley transfer device according to claim 7, characterized in that: The flip mechanism (5) comprises a mounting frame (51), a second telescopic member (52) and a lever (53); the second telescopic member (52) and the lever (53) are mounted on the mounting frame (51); the end of the lever (53) is hinged to the telescopic end of the second telescopic member (52), the lever (53) is provided with a fulcrum, and the lever (53) is rotatably connected to the mounting frame (51) at the fulcrum in a vertical direction; a cross bar (54) is fixed to the end of the lever (53) away from the connection point between the lever and the telescopic end.
9. The automatic trolley transfer device according to claim 8, characterized in that: It also includes a detection mechanism, which includes a traction hook detection device, a trolley entry detection device and a trolley detachment and transfer mechanism detection device; the traction hook detection device is a grating, which is installed on both sides of the exit of the input track of the guide structure (1); the trolley entry detection device is a travel switch, which is arranged at the entrance of the door line; the trolley detachment and transfer mechanism detection device is a photoelectric switch, which is arranged on both sides of the lifting mechanism (3).