A new energy automobile battery management stacking device
Patent Information
- Application Number
- CN202522148020.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-11
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-10-11
AI Technical Summary
[0003]现有的堆叠装置在进行使用时,通常会将多个电池集中的放置在堆叠装置的内部,但在实际的使用过程中,由于电池的重量较大,在对电池进行拿取时较为不便,为此我们提出一种新能源汽车电池管理用堆叠装置
[0020]1、通过设有的连接驱动机构、固定推料机构、连接限位托料机构和移动托举机构之间的相互配合,能够在实际的使用过程中,将电池本体放置在移动托举机构的内侧,通过移动托举机构能够对电池本体的高度进行调节,并在移动托举机构的作用下,能够对电池本体进行推动,使得电池本体能够处于连接限位托料机构的顶部,并在固定推料机构的作用下,并与连接限位托料机构之间进行配合,对电池本体进行夹持固定,使得电池本体能够稳定的处于连接限位托料机构的顶部进行堆叠存放,操作方便快捷;
Smart Images

Figure CN224798040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery management stacking technology, and in particular to a stacking device for battery management in new energy vehicles. Background Technology
[0002] New energy vehicle batteries refer to batteries used in new energy vehicles (such as electric vehicles, hybrid vehicles, etc.), mainly lithium-ion batteries and lithium cobalt oxide batteries. New energy vehicle battery management refers to the monitoring, organization, scheduling and management of the battery system of new energy vehicles to ensure the safety, efficiency and lifespan of the batteries. When managing batteries, stacking racks are needed to stack the batteries together for easy management and to improve space utilization.
[0003] Existing stacking devices typically place multiple batteries together inside the device during use. However, due to the weight of the batteries, it is inconvenient to handle them. Therefore, we propose a stacking device for battery management in new energy vehicles. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a stacking device for battery management in new energy vehicles, which can solve the problems existing in the background art.
[0005] The technical solution of this utility model is:
[0006] A stacking device for battery management in new energy vehicles, comprising:
[0007] The mounting frame has a connecting plate fixedly installed in the middle of its inner side;
[0008] A connecting drive mechanism is fixedly mounted on the bottom of the mounting frame and the bottom of the inner connecting plate of the mounting frame;
[0009] A fixed material pushing mechanism is symmetrically arranged on the inner side of the mounting frame;
[0010] A connecting limiting material support mechanism is fixedly installed between the inner side of the mounting frame and the connecting plate;
[0011] The battery body is movably placed on top of the connecting and limiting material support mechanism;
[0012] The movable lifting mechanism has its end movably located inside the connecting drive mechanism.
[0013] In a further technical solution, the connecting drive mechanism includes a connecting mounting frame, a support block at the bottom end of the connecting mounting frame, a first servo motor fixedly connected to one side end of the connecting mounting frame, a fixed guide groove on the front surface of the connecting mounting frame, an adjusting threaded rod movably connected inside the connecting mounting frame, one end of the adjusting threaded rod being fixedly connected to the output end of the first servo motor, and the other end of the adjusting threaded rod being fixedly connected to a limiting end plate, the limiting end plate being located outside the connecting mounting frame and slidingly fitting against the outside of the connecting mounting frame.
[0014] In a further technical solution, the mobile lifting mechanism includes a mobile base, with a threaded through hole inside one end of the mobile base, and symmetrically connected drive wheels at the bottom of the other end of the mobile base. A connecting lifting and pushing mechanism is fixedly connected to the top of the other end of the mobile base. One end of the mobile base is in contact with the inner side of the fixed guide groove, and the inner side of the threaded through hole is in contact with the outer side of the surface of the adjusting threaded rod.
[0015] In a further technical solution, the connecting lifting and pushing mechanism includes a second fixed connecting plate. A second servo motor is fixedly connected to the top of the second fixed connecting plate, and a threaded connecting rod is fixedly connected to the output end of the second servo motor. Fixed guide rods are symmetrically arranged between the end of the second fixed connecting plate and the end of the movable base. Fixed guide slots are symmetrically opened on the surface of the second fixed connecting plate. A first connecting plate is movably connected to the outer surface of the threaded connecting rod and the fixed guide rod. A fastening nut is symmetrically arranged on one side of the first connecting plate. A second connecting plate is movably connected to the outer surface of the threaded connecting rod and the fixed guide rod. The second connecting plate and the first connecting plate... A fastening bolt is provided between the two parts, and the fastening bolt is fastened to the fastening nut. A second connecting block is movably inserted into the inner side of the end of the second connecting plate. A connecting side plate is fixedly connected to one end of the second connecting block. A connecting support is fixedly connected to one side end of the connecting side plate. Fixed mounting sleeves are symmetrically provided on the top of the second connecting plate. A second electric telescopic rod is fixedly connected inside the fixed mounting sleeve. A second pusher plate is fixedly connected to the output end of the second electric telescopic rod. The first connecting plate and the second connecting plate are connected to the threaded connecting rod by threads. The output end of the second electric telescopic rod slides and fits against the inner side of the fixed guide groove.
[0016] In a further technical solution, the fixed pushing mechanism includes a first fixed connecting plate, on the side of the first fixed connecting plate away from the mounting frame a first electric telescopic rod is fixedly connected, the output end of the first electric telescopic rod passes through the interior of the first fixed connecting plate and extends to the outside, and the output end of the first fixed connecting plate is fixedly connected to the first pushing plate.
[0017] In a further technical solution, the connecting and limiting material support mechanism includes a fixed material support plate, the fixed material support plate having a rectangular through groove inside, and a connecting and limiting mechanism fixedly provided at the bottom of the fixed material support plate.
[0018] In a further technical solution, the connecting limiting mechanism includes fixed mounting rods symmetrically arranged at the bottom of the fixed material support plate. A connecting base is fixedly connected to the bottom end of the fixed mounting rod. A connecting mounting plate is movably sleeved on the outer surface of the fixed mounting rod. A force-bearing spring is fixedly connected between the bottom end of the connecting mounting plate and the top of the connecting base plate. A connecting handle is fixedly connected to the middle of the bottom end of the connecting mounting plate. A first connecting block is fixedly connected to the middle of the top end of the connecting mounting plate. A guide slope is provided on the top of the first connecting block.
[0019] The beneficial effects of this utility model are:
[0020] 1. Through the cooperation of the connecting drive mechanism, the fixed pushing mechanism, the connecting limiting material support mechanism, and the moving lifting mechanism, the battery body can be placed inside the moving lifting mechanism during actual use. The height of the battery body can be adjusted by the moving lifting mechanism, and the battery body can be pushed under the action of the moving lifting mechanism so that the battery body can be placed on top of the connecting limiting material support mechanism. Under the action of the fixed pushing mechanism, and in cooperation with the connecting limiting material support mechanism, the battery body is clamped and fixed, so that the battery body can be stably stacked and stored on top of the connecting limiting material support mechanism. The operation is convenient and quick.
[0021] 2. The overall structure of this utility model is simple. During use, it can stably stack and store the battery body, and can also quickly retrieve the battery body, making the operation convenient and fast. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of a stacking device for battery management in a new energy vehicle according to an embodiment of the present invention;
[0023] Figure 2 This is a schematic diagram of the connection drive mechanism structure of a stacking device for battery management in a new energy vehicle according to an embodiment of this utility model;
[0024] Figure 3 This is a schematic diagram of the mobile lifting mechanism structure of a stacking device for battery management in new energy vehicles according to an embodiment of this utility model;
[0025] Figure 4 This is a schematic diagram of the fixed pushing mechanism structure of a stacking device for battery management of new energy vehicles according to an embodiment of this utility model;
[0026] Figure 5 This is a schematic diagram of the connection and limiting material support mechanism of a stacking device for battery management in new energy vehicles, according to an embodiment of this utility model.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Install the frame;
[0029] 2. Connecting drive mechanism; 21. Connecting mounting frame; 22. Fixing guide groove; 23. First servo motor; 24. Adjusting threaded rod; 25. Limiting end plate;
[0030] 3. Fixed pushing mechanism; 31. First fixed connecting plate; 32. First electric telescopic rod; 33. First pushing plate;
[0031] 4. Connecting and limiting material support mechanism; 41. Fixing material support plate; 42. Rectangular through groove; 43. Connecting and limiting mechanism;
[0032] 431. Fixed mounting rod; 432. Connecting chassis; 433. Force-bearing spring; 434. Connecting mounting plate; 435. First connecting block; 436. Guide slope; 437. Connecting handle;
[0033] 5. Battery body;
[0034] 6. Mobile lifting mechanism; 61. Mobile base; 62. Threaded through hole; 63. Connecting drive wheel; 64. Connecting lifting and pushing mechanism;
[0035] 641. Second fixed connecting plate; 642. Second servo motor; 643. Threaded connecting rod; 644. Fixed guide rod; 645. Fixed guide slot; 646. First connecting plate; 647. Fastening nut; 648. Second connecting plate; 649. Fastening bolt; 6410. Second connecting block; 6411. Connecting side plate; 6412. Connecting support frame; 6413. Fixed mounting sleeve; 6414. Second electric telescopic rod; 6415. Second pusher plate. Detailed Implementation
[0036] The embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0037] Example:
[0038] like Figures 1-5 As shown, a stacking device for battery management in new energy vehicles includes:
[0039] Mounting frame 1, with a connecting plate fixedly installed on its inner center;
[0040] The connecting drive mechanism 2 is fixedly installed at the bottom of the mounting frame 1 and the bottom of the inner connecting plate of the mounting frame 1;
[0041] The fixed pushing mechanism 3 is symmetrically arranged on the inner side of the mounting frame 1;
[0042] The connecting limiting material support mechanism 4 is fixedly installed between the inner side of the mounting frame 1 and the connecting plate;
[0043] The battery body 5 is movably placed on top of the connecting and limiting material support mechanism 4;
[0044] The movable lifting mechanism 6 has its end movably located inside the connecting drive mechanism 2.
[0045] The working principle of the above technical solution is as follows:
[0046] During use, the battery body 5 is placed inside the movable lifting mechanism 6, which lifts the battery body 5 to the top of the required stacking connecting limiting material support mechanism 4. The internal components of the movable lifting mechanism 6 then push the battery body 5, positioning it at the top of the connecting limiting material support mechanism 4. Under the action of the fixed pushing mechanism 3, the battery body 5 is further pushed, and the internal components of the connecting limiting material support mechanism 4 work together to clamp and fix the battery body 5. Conversely, adjusting the connecting limiting material support mechanism 4 causes the fixed pushing mechanism 3 to push the battery body 5, moving it to the inside of the movable lifting mechanism 6. The movable lifting mechanism 6 then lowers the battery body 5, making it easier to pick up and operate.
[0047] In another embodiment, such as Figure 2 As shown, the connecting drive mechanism 2 includes a connecting mounting frame 21. A support block is provided at the bottom end of the connecting mounting frame 21. A first servo motor 23 is fixedly connected to one side end of the connecting mounting frame 21. A fixed guide groove 22 is provided on the front surface of the connecting mounting frame 21. An adjusting threaded rod 24 is movably connected inside the connecting mounting frame 21. One end of the adjusting threaded rod 24 is fixedly connected to the output end of the first servo motor 23. The other end of the adjusting threaded rod 24 is fixedly connected to a limiting end plate 25. The limiting end plate 25 is located outside the connecting mounting frame 21 and slides against the outside of the connecting mounting frame 21.
[0048] This facilitates the driving of the first servo motor 23, which in turn drives the adjusting threaded rod 24 and the limiting end plate 25 to rotate, enabling the moving lifting mechanism 6 to move stably on the inner side of the fixed guide groove 22 and the outer side of the adjusting threaded rod 24 for adjustment.
[0049] In another embodiment, such as Figure 3As shown, the movable lifting mechanism 6 includes a movable base 61. A threaded through hole 62 is provided inside one end of the movable base 61. A drive wheel 63 is symmetrically provided at the bottom of the other end of the movable base 61. A lifting and pushing mechanism 64 is fixedly connected to the top of the other end of the movable base 61. One end of the movable base 61 is in contact with the inner side of the fixed guide groove 22, and the inner side of the threaded through hole 62 is in contact with the outer side of the surface of the adjusting threaded rod 24.
[0050] When the threaded rod 24 is rotated, the movable base 61 can be moved, allowing the connecting drive wheel 63 to move on the ground, thereby driving the connecting lifting and pushing mechanism 64 to move, making operation convenient.
[0051] In another embodiment, such as Figure 3 As shown, the connecting lifting and pushing mechanism 64 includes a second fixed connecting plate 641. A second servo motor 642 is fixedly connected to the top of the second fixed connecting plate 641. A threaded connecting rod 643 is fixedly connected to the output end of the second servo motor 642. Fixed guide rods 644 are symmetrically provided between the end of the second fixed connecting plate 641 and the end of the movable base 61. Fixed guide grooves 645 are symmetrically opened on the surface of the second fixed connecting plate 641. A first connecting plate 646 is movably connected to the outer surface of the threaded connecting rod 643 and the fixed guide rod 644. A fastening nut 647 is symmetrically provided on one side of the first connecting plate 646. A second connecting plate 648 is movably connected to the outer surface of the threaded connecting rod 643 and the fixed guide rod 644. A fastening bolt 647 is provided between the second connecting plate 648 and the first connecting plate 646. 49. Fastening bolts 649 and fastening nuts 647 are fastened together. A second connecting block 6410 is movably inserted into the inner side of the end of the second connecting plate 648. A connecting side plate 6411 is fixedly connected to one end of the second connecting block 6410. A connecting support frame 6412 is fixedly connected to one side end of the connecting side plate 6411. Fixed mounting blocks 6413 are symmetrically provided on the top of the second connecting plate 648. A second electric telescopic rod 6414 is fixedly connected inside the fixed mounting block 6413. A second pusher plate 6415 is fixedly connected to the output end of the second electric telescopic rod 6414. The first connecting plate 646 and the second connecting plate 648 are connected to the threaded connecting rod 643 by threads. The output end of the second electric telescopic rod 6414 slides and fits against the inner side of the fixed guide groove 645.
[0052] The battery body 5 is placed on top of the connecting support frame 6412. Then, the second servo motor 642 drives the threaded connecting rod 643, causing the first connecting plate 646 and the second connecting plate 648 to move upward on the outer surface of the threaded connecting rod 643 and the fixed guide rod 644. This causes the second connecting block 6410, the connecting side plate 6411, the connecting support frame 6412, the second electric telescopic rod 6414, the fixed mounting sleeve 6413, and the second pusher plate 6415 to move upward, lifting the battery body 5. Then, the second electric telescopic rod 6414 pushes the second pusher plate 6415, pushing the battery body 5 so that the battery body 5 can move to the top of the connecting limiting support mechanism 4. This allows the fixed pusher mechanism 3 and the connecting limiting support mechanism 4 to cooperate with each other to clamp and fix the battery body 5, making the operation convenient.
[0053] In another embodiment, such as Figure 4 As shown, the fixed pushing mechanism 3 includes a first fixed connecting plate 31. A first electric telescopic rod 32 is fixedly connected to the side of the first fixed connecting plate 31 away from the mounting frame 1. The output end of the first electric telescopic rod 32 passes through the interior of the first fixed connecting plate 31 and extends to the outside. A first pushing plate 33 is fixedly connected to the output end of the first fixed connecting plate 31.
[0054] This allows the first electric telescopic rod 32 to push the first pusher plate 33, enabling the first pusher plate 33 to push the battery body 5, thus cooperating with the connecting limiting material support mechanism 4 to clamp and restrict the battery body 5.
[0055] In another embodiment, such as Figure 5 As shown, the connecting and limiting material support mechanism 4 includes a fixed material support plate 41, a rectangular through groove 42 is provided inside the fixed material support plate 41, and a connecting and limiting mechanism 43 is fixedly provided at the bottom of the fixed material support plate 41.
[0056] When the battery body 5 moves on top of the fixed support plate 41, the battery body 5 can press down on the connecting limiting mechanism 43 and can automatically squeeze and adjust the connecting limiting mechanism 43, so that the battery body 5 can move stably between the connecting limiting mechanism 43 and the fixed pushing mechanism 3 and be stacked on top of the fixed support plate 41.
[0057] In another embodiment, such as Figure 5As shown, the connecting limiting mechanism 43 includes fixed mounting rods 431 symmetrically arranged at the bottom of the fixed material support plate 41. The bottom end of the fixed mounting rod 431 is fixedly connected to the connecting base plate 432. The outer surface of the fixed mounting rod 431 is movably sleeved with a connecting mounting plate 434. A force-bearing spring 433 is fixedly connected between the bottom end of the connecting mounting plate 434 and the top of the connecting base plate 432. A connecting handle 437 is fixedly connected to the middle of the bottom end of the connecting mounting plate 434. A first connecting block 435 is fixedly connected to the middle of the top end of the connecting mounting plate 434. A guide slope 436 is opened on the top of the first connecting block 435.
[0058] The edge of the battery body 5 can press against the guide slope 436, allowing the first connecting block 435 to move downward on its own, which in turn moves the connecting mounting plate 434 on the outside of the fixed mounting rod 431, pressing against the force spring 433, thus allowing for self-adjustment and convenient operation.
[0059] The working principle of this utility model is as follows: During use, the battery body 5 is first placed on top of the connecting support frame 6412. Then, the first servo motor 23 is driven to rotate the adjusting threaded rod 24 and the limiting end plate 25, so that the moving support mechanism 6 can move stably on the inner side of the fixed guide groove 22 and the outer side of the adjusting threaded rod 24 for adjustment. Then, the second servo motor 642 drives the threaded connecting rod 643, so that the first connecting plate 646 and the second connecting plate 648 move upward on the outer side of the threaded connecting rod 643 and the fixed guide rod 644, thereby driving the second connecting block 6410, the connecting side plate 6411, and the connecting support frame 6412. 412. The second electric telescopic rod 6414, the fixed mounting sleeve 6413, and the second pusher plate 6415 move upward to lift the battery body 5. Then, the second electric telescopic rod 6414 can push the second pusher plate 6415, pushing the battery body 5 so that the battery body 5 can move to the top of the fixed support plate 41. During the movement of the battery body 5, the edge of the battery body 5 can squeeze the guide slope 436, so that the first connecting block 435 can move downward on its own, driving the connecting mounting plate 434 to move on the outer side of the fixed mounting rod 431, squeezing the force spring 433, thereby adjusting itself. When the battery... After the battery body 5 detaches from the top of the first connecting block 435, the force spring 433 pushes the connecting mounting plate 434 and the first connecting block 435 upwards. Then, the first electric telescopic rod 32 pushes the first pusher plate 33, which cooperates with the first connecting block 435 to clamp and fix the battery body 5, stably stacking the battery body 5. When it is necessary to remove the battery body 5, the connecting handle 437 is manually pulled downwards, causing the connecting mounting plate 434 and the first connecting block 435 to move downwards, compressing the force spring 433. The first connecting block 435 no longer restricts the battery body 5, and then the first electric telescopic rod 32 pushes the first pusher plate 33. The material plate 33 and the battery body 5 are pushed together, allowing the battery body 5 to move to the top of the connecting support frame 6412. Then, the second servo motor 642 drives the threaded connecting rod 643, causing the first connecting plate 646 and the second connecting plate 648 to move downward on the outer surface of the threaded connecting rod 643 and the fixed guide rod 644. This causes the second connecting block 6410, the connecting side plate 6411, the connecting support frame 6412, the second electric telescopic rod 6414, the fixed mounting sleeve 6413, and the second pushing plate 6415 to move downward, lowering the height of the battery body 5. This makes it easier to pick up and remove the battery body 5. The overall structure is simple and the operation is convenient and quick.
[0060] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A stacking device for battery management in new energy vehicles, characterized in that, include: The mounting frame (1) has a connecting plate fixedly installed in the middle of its inner side; A connecting drive mechanism (2) is fixedly disposed at the bottom of the mounting frame (1) and the bottom of the inner connecting plate of the mounting frame (1); A fixed feeding mechanism (3) is symmetrically arranged on the inner side of the mounting frame (1); The connecting limiting material support mechanism (4) is fixedly disposed between the inner side of the mounting frame (1) and the connecting plate; The battery body (5) is movably placed on top of the connecting and limiting material support mechanism (4); The movable lifting mechanism (6) has its end movably located inside the connecting drive mechanism (2).
2. The stacking device for battery management in new energy vehicles according to claim 1, characterized in that: The connecting drive mechanism (2) includes a connecting mounting frame (21). The bottom end of the connecting mounting frame (21) is provided with a support block. One side of the connecting mounting frame (21) is fixedly connected to a first servo motor (23). The front surface of the connecting mounting frame (21) is provided with a fixed guide groove (22). An adjusting threaded rod (24) is movably connected inside the connecting mounting frame (21). One end of the adjusting threaded rod (24) is fixedly connected to the output end of the first servo motor (23). The other end of the adjusting threaded rod (24) is fixedly connected to a limiting end plate (25). The limiting end plate (25) is located outside the connecting mounting frame (21) and slides against the outside of the connecting mounting frame (21).
3. The stacking device for battery management in new energy vehicles according to claim 2, characterized in that: The movable lifting mechanism (6) includes a movable base (61), with a threaded through hole (62) inside one end of the movable base (61). A drive wheel (63) is symmetrically provided at the bottom of the other end of the movable base (61). A lifting and pushing mechanism (64) is fixedly connected to the top of the other end of the movable base (61). One end of the movable base (61) is in contact with the inner side of the fixed guide groove (22), and the inner side of the threaded through hole (62) is in contact with the outer side of the surface of the adjusting threaded rod (24).
4. The stacking device for battery management of new energy vehicles according to claim 3, characterized in that: The connecting lifting and pushing mechanism (64) includes a second fixed connecting plate (641). A second servo motor (642) is fixedly connected to the top of the second fixed connecting plate (641). A threaded connecting rod (643) is fixedly connected to the output end of the second servo motor (642). Fixed guide rods (644) are symmetrically provided between the end of the second fixed connecting plate (641) and the end of the movable base (61). Fixed guide slots (645) are symmetrically opened on the surface of the second fixed connecting plate (641). A first connecting plate (646) is movably connected to the outer surface of the threaded connecting rod (643) and the fixed guide rod (644). A fastening nut (647) is symmetrically provided on one side of the first connecting plate (646). A second connecting plate (648) is movably connected to the outer surface of the threaded connecting rod (643) and the fixed guide rod (644). A fastening bolt (647) is provided between the second connecting plate (648) and the first connecting plate (646). 49) The fastening bolt (649) and the fastening nut (647) are fastened together. The second connecting block (6410) is movably inserted into the inner side of the end of the second connecting plate (648). One end of the second connecting block (6410) is fixedly connected to the connecting side plate (6411). One side end of the connecting side plate (6411) is fixedly connected to the connecting support frame (6412). The top of the second connecting plate (648) is symmetrically provided with fixed installation sleeves (6413). The inside of the fixed installation sleeves (6413) is fixedly connected to the second electric telescopic rod (6414). The output end of the second electric telescopic rod (6414) is fixedly connected to the second pusher plate (6415). The first connecting plate (646) and the second connecting plate (648) are connected to the threaded connecting rod (643) by threads. The output end of the second electric telescopic rod (6414) slides and fits against the inner side of the fixed guide groove (645).
5. The stacking device for battery management in new energy vehicles according to claim 1, characterized in that: The fixed pusher mechanism (3) includes a first fixed connecting plate (31), and a first electric telescopic rod (32) is fixedly connected to the side of the first fixed connecting plate (31) away from the mounting frame (1). The output end of the first electric telescopic rod (32) passes through the interior of the first fixed connecting plate (31) and extends to the outside. The output end of the first fixed connecting plate (31) is fixedly connected to a first pusher plate (33).
6. The stacking device for battery management in new energy vehicles according to claim 1, characterized in that: The connecting limiting material support mechanism (4) includes a fixed material support plate (41), the fixed material support plate (41) has a rectangular through groove (42) inside, and the bottom of the fixed material support plate (41) is fixedly provided with a connecting limiting mechanism (43).
7. A stacking device for battery management in new energy vehicles according to claim 6, characterized in that: The connecting limiting mechanism (43) includes fixed mounting rods (431) symmetrically arranged at the bottom of the fixed material support plate (41). A connecting base plate (432) is fixedly connected to the bottom end of the fixed mounting rod (431). A connecting mounting plate (434) is movably sleeved on the outer surface of the fixed mounting rod (431). A force-bearing spring (433) is fixedly connected between the bottom end of the connecting mounting plate (434) and the top of the connecting base plate (432). A connecting handle (437) is fixedly connected to the middle of the bottom end of the connecting mounting plate (434). A first connecting block (435) is fixedly connected to the middle of the top end of the connecting mounting plate (434). A guide slope (436) is opened on the top of the first connecting block (435).