Lifting forklift for transporting battery pole rolls

Abstract

The utility model discloses a lifting forklift for transporting a battery pole roll, which can assist the battery pole roll to reach a position for positioning the battery pole roll on a forklift body more smoothly, and can prevent the outer side wall of the battery pole roll and the hole wall of a central hole from being scratched in the process of transporting the battery pole roll. And the battery pole roll can be prevented from falling off from the forklift body, the stability is high, and the safety is good. The forklift mainly structurally comprises a forklift body, a moving wheel structure, a vertical guide rail, a lifting seat, a lifting mechanism and a pole roll inserting column, a pole roll guide structure is arranged on the pole roll inserting column and comprises a plurality of ball structures, each ball structure comprises a guide pocket groove and a guide ball, one end of the pole roll inserting column is fixed to the lifting seat, and the other end of the pole roll inserting column is fixed to the lifting seat. The other end of the pole roll inserting column is a pole roll leading-in end, an anti-disengaging limiting groove is formed in the pole roll inserting column, a limiting stopper used for preventing the battery pole roll from disengaging from the pole roll inserting column is arranged on the anti-disengaging limiting groove, and the pole roll leading-in end, the limiting stopper, any ball structure and the lifting base are sequentially arranged in the axial direction of the pole roll inserting column.

Description

Technical Field

[0001] The utility model belongs to the technical field of forklifts, and particularly relates to a lifting forklift for transporting battery pole coils. Background Art

[0002] The battery pole coil is a large part with a cylindrical overall structure and a central hole penetrating both ends. When using a forklift to transport the battery pole coil, several aspects need to be mainly noted: First, during the process of using the forklift to transport the battery pole coil, it is advisable to reasonably position the battery pole coil to avoid scratches on the outer wall and the wall of the central hole of the battery pole coil due to its own sliding and movement; Second, during the movement of the forklift, it is necessary to prevent the battery pole coil from falling off the forklift. Existing forklifts, although they can transport the battery pole coil, lack functions and structures for the above-mentioned aspects that need attention. Summary of the Utility Model

[0003] The utility model provides a lifting forklift for transporting battery pole coils, which can assist the battery pole coil to reach the position on the forklift body for positioning the battery pole coil more smoothly. During the process of transporting the battery pole coil, it can not only avoid scratches on the outer wall and the wall of the central hole of the battery pole coil, but also prevent the battery pole coil from falling off the forklift body, with high stability and good safety.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A lifting forklift for transporting battery pole coils includes a forklift body, a mobile wheel structure, a vertical guide rail arranged on the forklift body, a lifting seat matched with the vertical guide rail, a lifting mechanism for driving the lifting seat, and a pole coil inserting column arranged on the lifting seat;

[0006] At least one pole coil guiding structure is arranged on the pole coil inserting column, and the pole coil guiding structure includes a plurality of ball structures. In one pole coil guiding structure: the ball structure includes a guiding pocket groove and guiding balls arranged on the guiding pocket groove;

[0007] One end of the pole coil inserting column is fixed on the lifting seat, the other end of the pole coil inserting column is a pole coil introducing end, an anti - detachment limiting groove is arranged on the pole coil inserting column, and a stopper for preventing the battery pole coil from detaching from the pole coil inserting column is arranged on the anti - detachment limiting groove. The pole coil introducing end, the stopper, any one ball structure, and the lifting seat are arranged in sequence along the axial direction of the pole coil inserting column.

[0008] Preferably, in one pole coil guiding structure: the ball structure further includes an embedding groove opening on the outer wall of the pole coil inserting column and an embedding body embedded on the embedding groove, and the pocket groove is arranged on the embedding body.

[0009] Preferably, the lifting mechanism includes a vertical lead screw, a lead screw seat fixed to the forklift body, and a lead screw motor for driving the vertical lead screw to rotate. The vertical lead screw is rotatably connected to the lead screw seat, the axis of the vertical lead screw coincides with the center line of the rotation of the vertical lead screw, and the vertical lead screw is in threaded cooperation with the lifting seat.

[0010] Preferably, at least one pole coil guiding structure is provided at the top of the pole coil inserting post;

[0011] In the pole coil guiding structure provided at the top of the pole coil inserting post: the height of the highest point of any guiding ball is higher than the height of the top of the pole coil inserting post, and the highest point of any guiding ball is the highest point of the pole coil guiding structure;

[0012] In one pole coil guiding structure: the respective ball structures are arranged in sequence along the axial direction of the pole coil inserting post.

[0013] Preferably, the moving wheel structure includes a rear wheel structure and a pair of front wheel structures. The rear wheel structure includes a pair of rear universal wheels, and the front wheel structure includes a front extension foot extending forward and a front rolling wheel provided on the front extension foot.

[0014] Preferably, the anti - detachment limiting groove is a through - groove opening at the top of the pole coil inserting post, the stopper is a clamping strip, the middle of the clamping strip is stuck in or located in the anti - detachment limiting groove, and one end or both ends of the clamping strip are located outside the anti - detachment limiting groove.

[0015] Preferably, the anti - detachment limiting groove is a through - groove opening at the top of the pole coil inserting post. The stopper includes a vertical rotating shaft, a gear, a limiting slide bar slidably connected to the anti - detachment limiting groove, a rack meshing with the gear, a cable for pulling the vertical rotating shaft to rotate, a knob connected to the vertical rotating shaft, a push post that can be pushed by the battery pole coil, and a top spring for pushing the push post forward;

[0016] A bottom groove opening at the bottom of the pole coil inserting post is provided on the pole coil inserting post. The vertical rotating shaft is rotatably connected to the pole coil inserting post, and there is frictional self - locking between the vertical rotating shaft and the pole coil inserting post. The knob is located in the bottom groove, the lower end of the vertical rotating shaft is connected to the knob, the gear and the rack are both located in the anti - detachment limiting groove, the upper end of the vertical rotating shaft is coaxially connected to the gear, the rack is connected to the limiting slide bar, the push post is slidably connected to the lifting seat, the pole coil leading end, the outer end of the push post, the inner end of the push post, and the top spring are arranged in sequence along the axial direction of the pole coil inserting post. The inner end of the push post is connected to one end of the top spring, the other end of the top spring is connected to the forklift body, a cable groove is provided in the pole coil inserting post, the cable passes through the cable groove, one end of the cable is connected to an extension plate provided at the inner end of the push post, and the other end of the cable is connected to the side wall of the vertical rotating shaft;

[0017] When the top spring is in a natural state or a stretched state; if the cable is tensioned, a part of the cable is wound around the vertical rotating shaft, and the limiting slide bar is completely located in the anti - detachment limiting groove;

[0018] When the battery pole coil abuts against the lifting seat: the top spring is in a compressed state, and one end of the limit slide bar is outside the anti - detachment limit groove.

[0019] The beneficial effects of the present utility model are as follows: it can assist the battery pole coil to reach the position on the forklift body for positioning the battery pole coil more smoothly. During the transportation of the battery pole coil, it can not only avoid scratching the outer wall of the battery pole coil and the hole wall of the central hole, but also prevent the battery pole coil from falling off the forklift body, with high stability and good safety. By driving the lifting seat through the screw rod mechanism, the adjustment accuracy of the execution component for transporting the battery pole coil can be guaranteed to be high, which is conducive to aligning the battery pole coil and the unloading position of the battery pole coil. Description of the Drawings

[0020] Figure 1 is the structural schematic diagram of the present utility model;

[0021] Figure 2 is Figure 1 the enlarged view of part A in

[0022] Figure 3 is the front view of the present utility model;

[0023] Figure 4 is the structural schematic diagram of Embodiment 2;

[0024] Figure 5 is Figure 4 the enlarged view of part B in

[0025] Figure 6 is the partial structural schematic diagram of the bottom groove in Embodiment 2;

[0026] Figure 7 is the partial structural schematic diagram of the cable in Embodiment 2;

[0027] Figure 8 is Figure 7 the enlarged view of part C in

[0028] Reference numerals: 1, forklift body; 101, vertical guide rail; 102, lifting seat; 2, pole coil insertion post; 2a, anti - detachment limit groove; 2b, bottom groove; 301, guiding ball; 302, inlay; 401, vertical screw rod; 402, screw rod seat; 501, rear universal wheel; 502, front extension foot; 503, front rolling wheel; 601, clamping strip; 701, vertical rotating shaft; 702, gear; 703, limit slide bar; 704, rack; 705, cable; 706, knob; 707, push post; 708, top spring; 709, extension plate. Embodiment

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.

[0030] Embodiment 1:

[0031] As Figure 1 、 Figure 2 、 Figure 3 shown, a lifting forklift for transporting battery pole coils includes a forklift body 1, a mobile wheel structure, a vertical guide rail 101 provided on the forklift body 1, a lifting seat 102 cooperating with the vertical guide rail 101, a lifting mechanism for driving the lifting seat 102, and a pole coil inserting post 2 provided on the lifting seat 102;

[0032] At least one pole coil guiding structure is provided on the pole coil inserting post 2. The pole coil guiding structure includes a plurality of ball structures. In one pole coil guiding structure: the ball structure includes a guiding pocket groove and guiding balls 301 provided on the guiding pocket groove;

[0033] One end of the pole coil inserting post 2 is fixed on the lifting seat 102, the other end of the pole coil inserting post 2 is a pole coil inlet end, an anti - detachment limiting groove 2a is provided on the pole coil inserting post 2, and a limiter for preventing the battery pole coil from detaching from the pole coil inserting post 2 is provided on the anti - detachment limiting groove 2a. The pole coil inlet end, the limiter, any ball structure, and the lifting seat 102 are arranged in sequence along the axial direction of the pole coil inserting post 2.

[0034] When it is necessary to transport the battery pole coil, the forklift body 1 moves to the front of the battery pole coil through the mobile wheel mechanism. The lifting seat 102 drives the pole coil inserting post 2 to descend until the "center hole of the pole coil inserting post 2 is aligned with the center hole of the battery pole coil", and then a pole coil transfer device (conventional transfer devices or auxiliary devices such as a manipulator, a crane, a conveyor belt, a pushing cylinder, a moving guide rail, etc.) can be used to sleeved the battery pole coil onto the pole coil inserting post 2. Due to the existence of the pole coil guiding structure, during the process of the battery pole coil being completely sleeved onto the pole coil inserting post 2, the inner wall of the center hole of the pole coil inserting post 2 will have rolling friction with each guiding ball 301, thereby effectively reducing the difficulty of sleeving the battery pole coil onto the pole coil inserting post 2 and not easily scratching the inner wall of the center hole of the battery pole coil (in the above process, the limiter is in a state of ineffective limiting).

[0035] After that, the lifting seat 102 drives the pole coil inserting post 2 and the battery pole coil to rise together, and the forklift body 1 can move (transport) the battery pole coil through the moving wheel structure. Before transportation, the limiter should be returned to the effective limiting state. During transportation, since the solution of the present utility model does not use a fork rod to contact the battery pole coil like a traditional forklift, the outer wall of the battery pole coil will not be scratched, which can ensure the quality of the product during transportation. Also, due to the existence of the limiter, the battery pole coil will not fall off during transportation, and the safety is good. In addition, the limiter is arranged on the anti - detachment limiting groove 2a, and it can be any conventional limiting structure, such as a board, a strip, a rod, etc., as long as it can prevent the "battery pole coil from retreating and passing through the anti - detachment limiting groove 2a".

[0036] As Figure 1 , Figure 2 , Figure 3 shown, in a pole coil guiding structure: the ball structure further includes an embedding groove opening on the outer wall of the pole coil inserting post 2 and an embedding body 302 embedded in the embedding groove, and the pocket groove is arranged on the embedding body 302.

[0037] The embedding body 302 is convenient for installation with the embedding groove, and is conducive to replacement when the ball structure is damaged.

[0038] As Figure 1 , Figure 3 shown, the lifting mechanism includes a vertical lead screw 401, a lead screw seat 402 fixed to the forklift body 1 and a lead screw motor for driving the vertical lead screw 401 to rotate. The vertical lead screw 401 is rotatably connected to the lead screw seat 402, the axis of the vertical lead screw 401 coincides with the rotation center line of the vertical lead screw 401, and the vertical lead screw 401 is in threaded cooperation with the lifting seat 102.

[0039] The lifting seat 102 is driven by a lead screw mechanism. The lead screw motor can be a servo motor, and the servo control accuracy of lifting the lifting seat 102 should reach 1 mm. In this way, the adjustment accuracy of the execution component (i.e., the pole coil inserting post 2) for transporting the battery pole coil can be guaranteed to be very high, which is beneficial to aligning the battery pole coil and the unloading position of the battery pole coil. And with the accurate position of the battery pole coil, it can be ensured that the battery pole coil is not easily offset during the process of being transferred to the forklift body 1 (pole coil inserting post 2) and leaving the forklift body 1 (pole coil inserting post 2), and the battery pole coil is not easily scratched or collided with other structures unnecessarily.

[0040] As Figure 1 , Figure 2 shown, at least one pole coil guiding structure is arranged on the top of the pole coil inserting post 2;

[0041] In the pole roll guiding structure provided at the top of the pole roll inserting post 2: the height of the highest point of any guiding ball 301 is higher than the height of the top of the pole roll inserting post 2, and the highest point of any guiding ball 301 is the highest point of the pole roll guiding structure; in one pole roll guiding structure: the ball structures are arranged in sequence along the axial direction of the pole roll inserting post 2.

[0042] Anyway, the pole roll guiding structure at the top of the pole roll inserting post 2 will definitely play a role (it will contact the inner wall of the central hole of the battery pole roll). Therefore, this is the most important one among the pole roll guiding structures. In order to ensure the smooth guiding of the battery pole roll and to avoid the battery pole roll contacting the pole roll inserting post 2 itself and causing excessive scratching, in this solution, it is designed that: the highest point of the guiding ball 301 is the highest point of the pole roll guiding structure. In this way, the battery pole roll will only contact the guiding ball 301.

[0043] As Figure 1 、 Figure 3 shown, the moving wheel structure includes a rear wheel structure and a pair of front wheel structures. The rear wheel structure includes a pair of rear universal wheels 501, and the front wheel structure includes a front extension foot 502 extending forward and a front rolling wheel 503 provided on the front extension foot 502.

[0044] The rear universal wheels 501 facilitate automatic following and adjustment. The front rolling wheel 503 is used for auxiliary support and forward guidance. The front extension foot 502 can make the front rolling wheel 503 be set more biased towards the pole roll inserting post 2, which is beneficial to improving the stability of the overall structure of the present utility model.

[0045] Embodiment 2:

[0046] Based on Embodiment 1, as Figure 1 、 Figure 2 shown, the anti - detachment limiting groove 2a is a through - groove opening at the top of the pole roll inserting post 2. The stopper is a clamping strip 601. The middle part of the clamping strip 601 is stuck in or located in the anti - detachment limiting groove 2a, and one end or both ends of the clamping strip 601 are located outside the anti - detachment limiting groove 2a.

[0047] In this solution, before the battery pole roll is sleeved onto the pole roll inserting post 2, the clamping strip 601 is removed (the stopper is in a state of ineffective limiting). In this way, the battery pole roll can be smoothly sleeved onto the pole roll inserting post 2. After the battery pole roll is completely sleeved onto the pole roll inserting post 2, the clamping strip 601 is inserted back into the anti - detachment limiting groove 2a (the stopper reaches a state of effective limiting). In this way, during transportation, the battery pole roll can be prevented from detaching from the pole roll inserting post 2.

[0048] Embodiment 3:

[0049] Based on Embodiment 1, as Figures 4 to 8As shown, the anti - detachment limiting groove 2a is a through - groove opening at the top of the pole - roll inserting post 2. The limiter includes a vertical rotating shaft 701, a gear 702, a limiting slide bar 703 slidably connected to the anti - detachment limiting groove 2a, a rack 704 meshing with the gear 702, a cable 705 for pulling the vertical rotating shaft 701 to rotate, a knob 706 connected to the vertical rotating shaft 701, a push post 707 that can be pushed by the battery pole - roll, and a top spring 708 for pushing the push post 707 forward;

[0050] A bottom groove 2b opening at the bottom of the pole - roll inserting post 2 is provided on the pole - roll inserting post 2. The vertical rotating shaft 701 is rotatably connected to the pole - roll inserting post 2, and there is frictional self - locking between the vertical rotating shaft 701 and the pole - roll inserting post 2. The knob 706 is located in the bottom groove 2b, and the lower end of the vertical rotating shaft 701 is connected to the knob 706. Both the gear 702 and the rack 704 are located in the anti - detachment limiting groove 2a. The upper end of the vertical rotating shaft 701 is coaxially connected to the gear 702. The rack 704 is connected to the limiting slide bar 703. The push post 707 is slidably connected to the lifting seat 102. The pole - roll inlet end, the outer end of the push post 707, the inner end of the push post 707, and the top spring 708 are arranged in sequence along the axial direction of the pole - roll inserting post 2. The inner end of the push post 707 is connected to one end of the top spring 708, and the other end of the top spring 708 is connected to the forklift body 1. A cable groove is provided in the pole - roll inserting post 2, and the cable 705 passes through the cable groove. One end of the cable 705 is connected to an extension plate 709 provided at the inner end of the push post 707, and the other end of the cable 705 is connected to the side wall of the vertical rotating shaft 701;

[0051] When the top spring 708 is in a natural state or a stretched state; if the cable 705 is tensioned, a part of the cable 705 is wound around the vertical rotating shaft 701, and the limiting slide bar 703 is completely inside the anti - detachment limiting groove 2a;

[0052] When the battery pole - roll abuts against the lifting seat 102: the top spring 708 is in a compressed state, and one end of the limiting slide bar 703 is outside the anti - detachment limiting groove 2a.

[0053] In this solution, before the battery pole - roll is sleeved on the pole - roll inserting post 2, the limiting slide bar 703 is completely inside the anti - detachment limiting groove 2a (the limiter is in a state of ineffective limiting). At this time, the battery pole - roll can be smoothly sleeved on the pole - roll inserting post 2. Starting at a certain moment, the battery pole - roll contacts and pushes the push post 707. As shown in Figure 4 、 Figure 7 In the perspective view, the push post 707 moves leftward, the top spring 708 is compressed, the push post 707 pulls the cable 705 through the extension plate 709 provided at the inner end of the push post 707. The cable 705 is in a tensioned state and drives the vertical rotating shaft 701 to rotate (a part of the cable 705 is wound around the vertical rotating shaft 701, and after the cable 705 is pulled, it can drive the vertical rotating shaft 701 to rotate). As shown in Figure 6From the perspective, the gear 702 rotates counterclockwise at this time, and the rack 704 drives the limit slide 703 to extend out of the anti-slip limit groove 2a (the limiter reaches the effective limit state), and the battery pole coil is driven by the pole coil transfer device to support the lifting seat 102 (the top spring 708 is greatly compressed), and the limit slide 703 extends out of the anti-slip limit groove 2a. At this time, the limiter reaches the effective limit state, and there is a distance between the battery pole coil and the limit slide 703 (this ensures that the battery pole coil can retreat a distance and still will not separate from the pole coil plug 2). Subsequently, the pole coil transfer device is withdrawn, and under the action of the greatly compressed top spring 708, the push column 707 retreats and resets, and pushes the battery pole coil back slightly (as mentioned above, the battery pole coil can retreat a distance and still will not separate from the pole coil plug 2). At this time, the cable 705 is in a relaxed state. Then the mobile wheel structure can be used to move the forklift body 1 to transport the battery pole coil. After being transported to the destination, the knob 706 in the bottom groove 2b can be manually rotated. Figure 6 From the perspective, at this time, the knob 706 drives the vertical shaft 701 and the gear 702 to rotate clockwise, and the rack 704 drives the limit slide 703 back to the anti-detachment limit groove 2a, and the limiter reaches the limit failure state. At this time, the battery pole coil can be detached from the pole coil plug 2, and the vertical shaft 701 also rewinds a part of the cable 705 and tightens the cable 705.

[0054] The above is a detailed introduction to the embodiments of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for technicians in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A lifting forklift for transporting battery pole coils, characterized in that, It includes a forklift body (1), a mobile wheel structure, a vertical guide rail (101) provided on the forklift body (1), a lifting seat (102) cooperating with the vertical guide rail (101), a lifting mechanism for driving the lifting seat (102), and a pole roll insertion post (2) provided on the lifting seat (102); At least one pole roll guiding structure is provided on the pole roll insertion post (2). The pole roll guiding structure includes a number of ball structures. In one pole roll guiding structure: the ball structure includes a guiding pocket groove and guiding balls (301) provided on the guiding pocket groove; One end of the pole roll insertion post (2) is fixed on the lifting seat (102). The other end of the pole roll insertion post (2) is a pole roll inlet end. An anti - detachment limit groove (2a) is provided on the pole roll insertion post (2). A stopper for preventing the battery pole roll from detaching from the pole roll insertion post (2) is provided on the anti - detachment limit groove (2a). The pole roll inlet end, the stopper, any ball structure, and the lifting seat (102) are arranged in sequence along the axial direction of the pole roll insertion post (2).

2. The lifting forklift for transporting battery pole coils according to claim 1, characterized in that, In one pole roll guiding structure: the ball structure further includes an embedding groove opening on the outer side wall of the pole roll insertion post (2) and an embedding body (302) embedded in the embedding groove. The pocket groove is provided on the embedding body (302).

3. A lifting forklift for transporting battery pole coils according to claim 1, characterized in that, The lifting mechanism includes a vertical lead screw (401), a lead screw seat (402) fixed to the forklift body (1), and a lead screw motor for driving the vertical lead screw (401) to rotate. The vertical lead screw (401) is rotatably connected to the lead screw seat (402). The axis of the vertical lead screw (401) coincides with the rotation center line of the vertical lead screw (401). The vertical lead screw (401) is in threaded cooperation with the lifting seat (102).

4. A lifting forklift for transporting battery pole coils according to claim 1 or 2 or 3, characterized in that, At least one pole roll guiding structure is provided at the top of the pole roll insertion post (2); In the pole roll guiding structure provided at the top of the pole roll insertion post (2): the height of the highest point of any guiding ball (301) is higher than the height of the top of the pole roll insertion post (2). The highest point of any guiding ball (301) is the highest point of the pole roll guiding structure; In one pole roll guiding structure: each ball structure is arranged in sequence along the axial direction of the pole roll insertion post (2).

5. A lifting forklift for transporting battery pole coils according to claim 1, characterized in that, The mobile wheel structure includes a rear wheel structure and a pair of front wheel structures. The rear wheel structure includes a pair of rear universal wheels (501). The front wheel structure includes a front extension foot (502) extending forward and a front rolling wheel (503) provided on the front extension foot (502).

6. A lifting forklift for transporting battery pole coils according to claim 1 or 2 or 3, characterized in that, The anti - detachment limit groove (2a) is a through - groove opening at the top of the pole roll insertion post (2). The stopper is a clamping strip (601). The middle part of the clamping strip (601) is stuck in or located in the anti - detachment limit groove (2a). One end or both ends of the clamping strip (601) are located outside the anti - detachment limit groove (2a).

7. A lifting forklift for transporting battery pole coils according to claim 1 or 2 or 3, characterized in that, The anti - detachment limit groove (2a) is a through - groove opening at the top of the pole - roll inserting post (2). The stopper includes a vertical rotating shaft (701), a gear (702), a limit slide bar (703) slidably connected to the anti - detachment limit groove (2a), a rack (704) meshing with the gear (702), a cable (705) for pulling the vertical rotating shaft (701) to rotate, a knob (706) connected to the vertical rotating shaft (701), a push post (707) that can be pushed by the battery pole - roll, and a top spring (708) for pushing the push post (707) forward; The pole - roll inserting post (2) is provided with a bottom groove (2b) opening at the bottom of the pole - roll inserting post (2). The vertical rotating shaft (701) is rotatably connected to the pole - roll inserting post (2), and there is frictional self - locking between the vertical rotating shaft (701) and the pole - roll inserting post (2). The knob (706) is located in the bottom groove (2b), the lower end of the vertical rotating shaft (701) is connected to the knob (706), both the gear (702) and the rack (704) are located in the anti - detachment limit groove (2a), the upper end of the vertical rotating shaft (701) is coaxially connected to the gear (702), the rack (704) is connected to the limit slide bar (703), the push post (707) is slidably connected to the lifting seat (102). The pole - roll leading end, the outer end of the push post (707), the inner end of the push post (707), and the top spring (708) are arranged in sequence along the axial direction of the pole - roll inserting post (2). The inner end of the push post (707) is connected to one end of the top spring (708), the other end of the top spring (708) is connected to the forklift body (1). There is a cable groove in the pole - roll inserting post (2), the cable (705) passes through the cable groove, one end of the cable (705) is connected to an extension plate (709) arranged at the inner end of the push post (707), and the other end of the cable (705) is connected to the side wall of the vertical rotating shaft (701); When the top spring (708) is in a natural state or a stretched state; if the cable (705) is tensioned, a part of the cable (705) is wound around the vertical rotating shaft (701), and the limit slide bar (703) is completely inside the anti - detachment limit groove (2a); When the battery pole - roll abuts against the lifting seat (102): the top spring (708) is in a compressed state, and one end of the limit slide bar (703) is outside the anti - detachment limit groove (2a).

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