Transfer equipment

Abstract

The utility model belongs to the technical field of battery stack transfer, and discloses transfer equipment. The transfer equipment comprises a rack, a lifting assembly, an overturning assembly and a clamping assembly, the clamping assembly is arranged on the overturning assembly, the overturning assembly is arranged on the lifting assembly, the lifting assembly is arranged on the rack and drives the overturning assembly to ascend and descend, and the clamping assembly comprises a fixed clamping piece, an overturning clamping piece, a connecting piece and a locking piece. The fixed clamping piece, the turnover clamping piece and the locking piece are used in cooperation to clamp a clamped piece, and the magnetic attraction protection piece attracts the clamped piece. According to the transfer equipment, the clamping assembly can clamp the clamped piece, the magnetic attraction protection piece is arranged to attract the clamped piece, the stability of the clamped piece is improved, the gravity center of the clamped piece is lowered after the overturning assembly drives the clamping assembly to be switched to the horizontal state, the supporting stability of the clamped piece is improved, and the clamping assembly is convenient to use. And the safety in the transfer process is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery stack transportation, in particular to transportation equipment. Background Art

[0002] In the battery stack manufacturing process, the battery stack needs to be moved from the press to the electrical test, FAT test station, and packaging station, and the battery stack needs to maintain a different posture at each station. At the same time, the battery stack is heavy, and there is a risk of falling during manual handling of the battery stack. After multiple flipping and handling, the appearance of the battery stack will also increase the risk of scratches. There is a transfer vehicle in the prior art, and the clamping structure of the transfer vehicle is less stable, which not only easily causes the battery stack to fall, but also poses a threat to the safety of personnel.

[0003] Therefore, a transfer device is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a transfer device, which is easy to use and can be stably clamped, can improve the safety of battery stacks during transportation, and ensure the normal progress of production.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A transfer device, the transfer device comprises a frame, a lifting assembly, a flip assembly and a clamping assembly, the clamping assembly is arranged on the flip assembly, the flip assembly is arranged on the lifting assembly, and the lifting assembly is arranged on the frame; the flip assembly can drive the clamping assembly to switch between a vertical state and a horizontal state, the lifting assembly can drive the flip assembly and the clamping assembly to rise or fall, and the clamping assembly is used to clamp a clamped part;

[0007] The clamping assembly includes a fixed clamp, a flip clamp, a connecting piece and a locking piece, the connecting piece is connected to the flip assembly, the fixed clamp is arranged at the bottom of the connecting piece, the flip clamp is rotatably arranged at the top of the connecting piece, the fixed clamp is used to support the clamped piece, the locking piece and the flip clamp can clamp the clamped piece to the fixed clamp, the clamping assembly also includes a magnetic protective piece, the magnetic protective piece is arranged on the connecting piece, and the magnetic protective piece is used to adsorb the clamped piece.

[0008] As an optional technical solution, a plurality of the clamping assemblies are provided, the plurality of the clamping assemblies are arranged in parallel and at intervals along the first direction, and the plurality of the connecting members are fixedly connected by a connecting plate.

[0009] As an optional technical solution, a plurality of the magnetic protection members are provided, and the plurality of the magnetic protection members are spaced apart on the connecting plate along the first direction.

[0010] As an optional technical solution, the connecting member includes a first rod, a second rod and a fixing member, one of the first rod and the second rod is provided with a sliding groove, the other of the first rod and the second rod is slidably set in the sliding groove, and the fixing member can fix the first rod and the second rod.

[0011] As an optional technical solution, the plurality of flip clamps of the plurality of clamping assemblies are integrally formed.

[0012] As an optional technical solution, the lifting assembly includes a linear drive assembly and a fixed plate, and the linear drive assembly is arranged between the fixed plate and the frame to drive the fixed plate to rise or fall.

[0013] As an optional technical solution, the flipping assembly includes a flipping drive component, the fixed end of the flipping drive component is connected to the fixed plate, the output end of the flipping drive component is connected to the clamping assembly, and the flipping drive component is used to drive the clamping assembly to switch between the vertical state and the horizontal state.

[0014] As an optional technical solution, the flipping assembly also includes a sliding plate, and the lifting assembly also includes a guide groove, the guide groove is extended on the fixed plate, and the sliding plate is slidably set in the guide groove, so that the flipping assembly can move and position on the fixed plate.

[0015] As an optional technical solution, the transfer equipment also includes a locking assembly, which includes a spring pin and a positioning ring. The spring pin is arranged on the fixing plate, and the positioning ring is arranged on the connecting piece. The spring pin can be plugged into and matched with the positioning ring.

[0016] As an optional technical solution, the lifting assembly further includes a counterweight block, and the counterweight block is arranged on the fixed plate.

[0017] Beneficial effects of the utility model:

[0018] The utility model discloses a transfer device, which includes a frame, a lifting component, a flip component and a clamping component. The clamping component is arranged on the flip component, the flip component is arranged on the lifting component, the lifting component is arranged on the frame, the lifting component drives the flip component to lift, the flip component drives the clamping component to switch between a vertical state and a horizontal state, the clamping component is used to clamp a clamped part, the clamping component includes a fixed clamping part, a flip clamping part, a connecting part and a locking part, the connecting part is connected to the flip component, the fixed clamping part, the flip clamping part and the locking part are used in conjunction to clamp the clamped part, the clamping component also includes a magnetic protective part arranged on the connecting part, and the magnetic protective part can absorb the clamped part. The clamping component of this transfer device can not only clamp the clamped part, but also arrange a magnetic protective part to absorb the clamped part, thereby improving the stability of the clamped part, and after the flip component drives the clamping component to switch to a horizontal state, the center of gravity of the clamped part is lowered, thereby improving the support stability of the lifting component to the clamped part, thereby further ensuring the safety during the transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of a transfer device according to an embodiment of the utility model transferring a battery stack;

[0020] Figure 2 yes Figure 1 A partial enlarged view of middle A;

[0021] Figure 3 It is a side view of the transfer equipment of the embodiment of the utility model transferring a battery stack.

[0022] In the figure:

[0023] 1. Transfer equipment; 2. Battery stack;

[0024] 10. Frame; 11. Transfer handle; 12. Anti-vibration wheels;

[0025] 20. Lifting assembly; 21. Hydraulic cylinder; 22. Connecting rod assembly; 23. Fixing plate; 231. Guide groove; 24. Counterweight;

[0026] 30. Turning assembly; 31. Sliding plate; 311. Sliding wheel; 32. Turning cylinder;

[0027] 40. Clamping assembly; 41. Fixed clamping member; 42. Flip clamping member; 43. Connecting member; 44. Connecting plate; 45. Locking bolt; 46. Magnet storage device; 47. Support structure; 471. Support rod; 472. Support wheel;

[0028] 51. Spring pin; 52. Positioning ring. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, 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, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] like Figures 1 to 3As shown, in this embodiment, a transfer device 1 is provided, which includes a frame 10, a lifting assembly 20, a flip assembly 30 and a clamping assembly 40, wherein the clamping assembly 40 is arranged on the flip assembly 30, the flip assembly 30 is arranged on the lifting assembly 20, the lifting assembly 20 is arranged on the frame 10, the flip assembly 30 can drive the clamping assembly 40 to switch between a vertical state and a horizontal state, the clamping assembly 40 is used to clamp a clamped part, and the lifting assembly 20 can drive the flip assembly 30 and the clamping assembly 40 to rise or fall; wherein, The clamping assembly 40 includes a fixed clamping member 41, a flip clamping member 42, a connecting member 43 and a locking member. The connecting member 43 is connected to the flip assembly 30. The fixed clamping member 41 is arranged at the bottom of the connecting member 43. The flip clamping member 42 is rotatably arranged at the top of the connecting member 43. The fixed clamping member 41 is used to support the clamped member. The locking member and the flip clamping member 42 can clamp the clamped member to the fixed clamping member 41. The clamping assembly 40 also includes a magnetic protective member, which is arranged on the connecting member 43 and is used to adsorb the clamped member.

[0034] Specifically, in this embodiment, the fixed clamping member 41 of the clamping assembly 40 is arranged at the bottom of the connecting member 43, and the flip clamping member 42 is rotatably arranged at the bottom of the connecting member 43. The lifting assembly 20 drives the flip assembly 30 to rise and fall and then drives the clamping assembly 40 to rise and fall, so that the fixed clamping member 41 can be inserted into the bottom of the clamped member more conveniently, thereby improving the convenience of clamping. When the fixed clamping member 41 is clamped at the bottom of the clamped member, the flip clamping member 42 is flipped to be parallel to the fixed clamping member 41, and then the locking member is connected to the clamped member, so that the fixed clamping member 41 and the flip clamping member 42 clamp the clamped member; after the clamped member is clamped, the flip assembly 30 drives the clamping assembly 40 and the clamped member to switch from a vertical state to a horizontal state, thereby lowering the center of the clamped member and improving stability during transportation. Since the clamping assembly 40 in this embodiment is located on one side of the lifting assembly 20 in the vertical state, and the flipping assembly 30 can drive the clamping assembly 40 and the clamped part to move and position along the first direction on the lifting assembly 20, this arrangement can balance the weight of the clamped part on the transfer equipment 1, improve stability during transportation, and prevent bumps.

[0035] In this embodiment, the surfaces of the fixed clamping member 41 and the flip clamping member 42 that are in contact with the clamped member are provided with anti-collision materials to prevent the clamped member from being damaged and improve the safety of use.

[0036] In this embodiment, the locking member is a locking bolt 45 . A threaded hole is provided on the battery stack 2 . The locking bolt 45 passes through the flip clamp 42 and is threadedly connected to the threaded hole on the battery stack 2 , thereby locking the battery stack 2 .

[0037] In this embodiment, a magnet receiving device 46 is provided on the connecting member 43 for receiving the locking bolt 45 , thereby preventing the locking bolt 45 from being lost and improving the convenience in use.

[0038] Furthermore, a plurality of clamping assemblies 40 are provided, and the plurality of clamping assemblies 40 are arranged in parallel and at intervals along the first direction, and a plurality of connectors 43 are fixedly connected by a connecting plate 44. Specifically, in the present embodiment, since the clamped part in the present embodiment is a battery stack 2, a battery stack steel belt is provided on the battery stack 2, a plurality of clamping assemblies 40 are provided, and the plurality of clamping assemblies 40 are arranged at a preset certain distance interval, which can just stagger the battery stack steel belt to avoid affecting the normal clamping of the battery stack 2. A connecting plate 44 is used to fix the plurality of connectors 43 in connection to improve stability during use. The surface of the connecting plate 44 is paved with anti-collision material to prevent damage to the clamped part and improve safety in use.

[0039] The anti-collision material in this embodiment can be a plastic film or a rubber layer, which will not be described in detail here.

[0040] In this embodiment, the connecting plate 44 is disposed on a side of the connecting member 43 away from the flip assembly 30 , and two connecting plates 44 are provided. The two connecting plates 44 are spaced apart in the vertical direction to further improve stability.

[0041] Furthermore, a plurality of magnetic protection members are provided, and the plurality of magnetic protection members are spaced apart along the first direction on the connecting plate 44. Specifically, in this embodiment, the plurality of magnetic protection members can simultaneously adsorb the clamped member, thereby improving the safety during transportation. The magnetic protection member includes a magnet and a protection layer, and the protection layer is provided on the periphery of the magnet, thereby preventing the clamped member from being crushed, thereby improving the safety of use.

[0042] In this embodiment, the connecting plate 44 is provided with a groove, the magnet is arranged in the groove, and the connecting plate 44 is wrapped by a protective layer. This arrangement can prevent collision to the clamped part.

[0043] Further, the connecting member 43 includes a first rod, a second rod and a fixing member, one of the first rod and the second rod is provided with a slide groove, the other of the first rod and the second rod is slidably arranged in the slide groove, and the fixing member can fix the first rod and the second rod. Specifically, in this embodiment, the first rod is arranged below the second rod, the first rod is provided with a slide groove, the second rod is slidably arranged in the slide groove, the fixing member is a combination of bolts and nuts, and a plurality of through holes are provided on the first rod and the second rod. A suitable combination of through holes is selected according to the size of the clamped parts to be clamped, the bolts pass through the suitable combination of through holes of the first rod and the second rod in turn and are threadedly connected with the nuts, thereby fixing the first rod and the second rod. This arrangement can improve the versatility of the clamping assembly 40.

[0044] In other embodiments, one of the first rod member and the second rod member is provided with a plurality of pin holes, and the other of the first rod member and the second rod member is provided with an elastic pin, which can be plugged into and matched with one of the pin holes to fix the first rod member and the second rod member, thereby achieving the same purpose, which will not be elaborated here.

[0045] Furthermore, the plurality of flip clamps 42 of the plurality of clamping assemblies 40 are integrally formed. Specifically, in this embodiment, this arrangement makes the flip clamps 42 more efficient to use and improves the convenience of use.

[0046] Furthermore, the lifting assembly 20 includes a linear drive assembly and a fixed plate 23. The linear drive assembly is arranged between the fixed plate 23 and the frame 10, and is used to drive the fixed plate 23 to rise or fall. Specifically, in this embodiment, the linear drive assembly includes a hydraulic cylinder 21 and a connecting rod assembly 22. The hydraulic cylinder 21 and the connecting rod assembly 22 form a scissor-type lifting mechanism. The hydraulic cylinder 21 is retracted and can drive the fixed plate 23 to rise and fall. This arrangement can ensure the stability of the fixed plate 23 during the lifting process, and the hydraulic cylinder 21 is used to ensure the safety during the transportation of the battery stack 2, avoiding the safety risks in the hydrogen-related area caused by the use of charging equipment.

[0047] In this embodiment, the scissor-type lifting mechanism is a relatively mature mechanism in the prior art and will not be described in detail here. The hydraulic cylinder 21 also includes a first pedal, and hydraulic oil can be input into the hydraulic cylinder 21 by stepping on the first pedal.

[0048] In other embodiments, the hydraulic cylinder 21 may be other components capable of linear motion, which will not be described in detail herein.

[0049] In other embodiments, the linear drive assembly may be a separate hydraulic cylinder 21, which can also achieve the same purpose, and will not be elaborated here.

[0050] Furthermore, the flip assembly 30 includes a flip driver, the fixed end of which is connected to the fixed plate 23, the output end of which is connected to the clamping assembly 40, and the flip driver is used to drive the clamping assembly 40 to switch between the vertical state and the horizontal state. Specifically, in this embodiment, the flip driver is a flip cylinder 32, which avoids safety risks in hydrogen-related areas caused by the use of charging equipment.

[0051] Furthermore, the flipping assembly 30 also includes a sliding plate 31, the fixed end of the flipping cylinder 32 is connected to the sliding plate 31, and the lifting assembly 20 also includes a guide groove 231, the guide groove 231 is extended to the fixed plate 23, and the sliding plate 31 is slidably set in the guide groove 231, so that the flipping assembly 30 can be moved and positioned on the fixed plate 23. Specifically, in this embodiment, the fixed end of the flipping cylinder 32 is arranged on the sliding plate 31, and the output end of the flipping cylinder 32 is arranged on the clamping assembly 40. The sliding plate 31 is provided with a sliding wheel 311, and the fixed plate 23 of the lifting assembly 20 is provided with a guide groove 231. The guide groove 231 extends along the second direction, and the sliding wheel 311 can roll in the guide groove 231, so that the sliding plate 31 is slidably set on the fixed plate 23. When the flipping cylinder 32 flips the clamping assembly 40 to a horizontal state, the connecting member 43 of the clamping assembly 40 is parallel to the fixed plate 23, and pushing the sliding plate 31 or the clamping assembly 40 can make the sliding plate 31 slide along the fixed plate 23, so that the clamping assembly 40 can be located within the range of the fixed plate 23, thereby improving the stability of the clamped part. In this embodiment, the second direction is perpendicular to the first direction.

[0052] In this embodiment, the flip cylinder 32 further includes a second pedal, and compressed air can be input into the flip cylinder 32 by stepping on the second pedal.

[0053] In this embodiment, the clamping assembly 40 also includes a support structure 47, which is arranged perpendicular to the plane where the connecting member 43 is located. The support structure 47 includes a support rod 471 and a support wheel 472. The support rod 471 is arranged on the connecting member 43, and the support wheel 472 is arranged at the end of the support rod 471. When the flipping assembly 30 makes the clamping assembly 40 in a horizontal state, the support wheel 472 of the support structure 47 is rollingly supported on the end surface of the fixed plate 23. In the process of the sliding plate 31 sliding along the fixed plate 23, the support wheel 472 can support the clamping assembly 40 and improve the convenience of sliding.

[0054] Furthermore, the transfer device 1 further includes a locking assembly, which includes a spring pin 51 and a positioning ring 52. The spring pin 51 is arranged on the fixed plate 23, and the positioning ring 52 is arranged on the connecting piece 43. The spring pin 51 can be plugged and matched with the positioning ring 52. Specifically, in this embodiment, when the sliding plate 31 slides to the extreme position along the fixed plate 23, the elastic pin and the positioning ring 52 are plugged and matched, and the clamping assembly 40 and the fixed plate 23 can be locked to prevent the sliding of the clamping assembly 40 during the transfer process, thereby improving the safety of the transfer.

[0055] In this embodiment, the positioning ring 52 is disposed on the supporting rod 471 .

[0056] Furthermore, the lifting assembly 20 further includes a counterweight 24, which is disposed on the fixed plate 23. Specifically, in the present embodiment, the counterweight 24 is disposed on a side of the fixed plate 23 away from the clamping assembly 40, which can ensure the safety of the transfer device 1 during use, the counterweight 24 is fixedly disposed on the fixed plate 23, the spring pin 51 of the locking assembly is elastically disposed on the counterweight 24, and the spring pin 51 is plugged and matched with the positioning ring 52 disposed on the support rod 471 of the connecting member 43, which can improve stability.

[0057] In this embodiment, the transfer device 1 further includes a transfer handle 11, which is disposed on the frame 10, and a shockproof wheel 12 is disposed at the bottom of the frame 10, and four shockproof wheels 12 are installed at the bottom of the frame 10. Specifically, in this embodiment, the transfer handle 11 can improve the convenience of use, and the shockproof wheel 12 can be applied to a variety of road conditions to improve the stability of transfer.

[0058] The following is a description of the use of the transfer device 1 in this embodiment, where the clamped part is a battery stack 2 on a stacking press. First, it is necessary to adjust the clamping assembly 40 to a vertical state, adjust the output degree of the hydraulic cylinder 21 by stepping on the first pedal, and then adjust the height of the fixed plate 23 so that the height of the fixed clamp 41 can match the height of the battery stack 2 located on the stacking press, push the transfer equipment 1, so that the fixed clamp 41 is inserted under the battery stack 2, and then flip the flip clamp 42 so that the flip clamp 42 and the fixed clamp 41 are parallel, remove the locking bolt 45 from the magnet storage device 46, insert the locking bolt 45 into the flip clamp 42, and tighten it on the battery stack 2; then step on the second pedal so that the flip motor drives the clamping assembly 40 to flip to a horizontal state, so that the battery stack 2 is separated from the stacking press, and then push the battery stack 2 so that the sliding plate 31 slides along the guide groove 231 of the fixed plate 23 until the spring pin 51 and the positioning ring 52 are plugged in and matched, so as to fix the battery stack 2, and then drag the transfer handle 11 to transfer the battery stack 2 to the target position.

[0059] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A transfer device, characterized in that: The transfer device comprises a frame (10), a lifting assembly (20), a turning assembly (30) and a clamping assembly (40); the clamping assembly (40) is arranged on the turning assembly (30), the turning assembly (30) is arranged on the lifting assembly (20), and the lifting assembly (20) is arranged on the frame (10); the turning assembly (30) can drive the clamping assembly (40) to switch between a vertical state and a horizontal state, the lifting assembly (20) can drive the turning assembly (30) and the clamping assembly (40) to rise or fall, and the clamping assembly (40) is used to clamp a clamped part; The clamping assembly (40) comprises a fixed clamping member (41), a flip clamping member (42), a connecting member (43) and a locking member, wherein the connecting member (43) is connected to the flip assembly (30), the fixed clamping member (41) is arranged at the bottom of the connecting member (43), and the flip clamping member (42) is rotatably arranged at the top of the connecting member (43), the fixed clamping member (41) is used to support the clamped member, and the locking member and the flip clamping member (42) can clamp the clamped member to the fixed clamping member (41), and the clamping assembly (40) further comprises a magnetic protective member, which is arranged on the connecting member (43) and is used to adsorb the clamped member.

2. The transfer equipment according to claim 1, characterized in that: A plurality of the clamping assemblies (40) are provided, the plurality of the clamping assemblies (40) are arranged in parallel and at intervals along a first direction, and the plurality of the connecting members (43) are fixedly connected via a connecting plate (44).

3. The transfer equipment according to claim 2, characterized in that: A plurality of magnetic protection members are provided, and the plurality of magnetic protection members are spaced apart and arranged on the connecting plate (44) along the first direction.

4. The transfer equipment according to claim 1, characterized in that: The connecting member (43) comprises a first rod, a second rod and a fixing member, one of the first rod and the second rod is provided with a sliding groove, the other of the first rod and the second rod is slidably arranged in the sliding groove, and the fixing member can fix the first rod and the second rod.

5. The transfer equipment according to claim 2, characterized in that: The plurality of flip clamping members (42) of the plurality of clamping assemblies (40) are integrally formed.

6. The transfer device according to any one of claims 1 to 5, characterized in that: The lifting assembly (20) comprises a linear drive assembly and a fixed plate (23); the linear drive assembly is arranged between the fixed plate (23) and the frame (10) and is used to drive the fixed plate (23) to rise or fall.

7. The transfer device according to claim 6, characterized in that: The flipping assembly (30) comprises a flipping driving member, wherein a fixed end of the flipping driving member is connected to the fixed plate (23), an output end of the flipping driving member is connected to the clamping assembly (40), and the flipping driving member is used to drive the clamping assembly (40) to switch between the vertical state and the horizontal state.

8. The transfer device according to claim 7, characterized in that: The flip assembly (30) further comprises a sliding plate (31), the fixed end of the flip driving member is connected to the sliding plate (31), the lifting assembly (20) further comprises a guide groove (231), the guide groove (231) is extended and arranged on the fixed plate (23), the sliding plate (31) is slidably arranged in the guide groove (231), so that the flip assembly (30) can be moved and positioned on the fixed plate (23).

9. The transfer device according to claim 8, characterized in that: The transfer device also includes a locking assembly, which includes a spring pin (51) and a positioning ring (52). The spring pin (51) is arranged on the fixing plate (23), and the positioning ring (52) is arranged on the connecting member (43). The spring pin (51) can be plugged into and matched with the positioning ring (52).

10. The transfer device according to claim 6, characterized in that: The lifting assembly (20) further comprises a counterweight block (24), wherein the counterweight block (24) is arranged on the fixing plate (23).

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