A forklift lifting device for replacing batteries of electric heavy trucks

Abstract

The utility model relates to a kind of forklift lifting appliance device for electric heavy truck battery replacement, it is equipped with two prongs seat, two prongs seat respectively correspond the two prongs of forklift, prongs seat inside has prongs cavity;Bracket is equipped above prongs seat, the top of bracket is equipped with hanger, hanger has several load-bearing cross beams, the below of load-bearing cross beam is equipped with several hooks;Prongs seat, bracket and hanger, constitute a frame, the inside of frame is the cavity for accommodating battery box;Hook has straight hook arm, hook arm is connected with load-bearing cross beam by hanger, the top of hook arm and the bottom of load-bearing cross beam form the space of the hoisting cross beam for accommodating battery box.This utility model combines forklift, can quickly carry, transfer battery box, greatly improve the operation convenience.

Description

Technical Field

[0001] This utility model relates to a forklift lifting device for quickly transporting battery boxes, belonging to the field of new energy application technology. Background Technology

[0002] With the increasing demand for battery swapping in electric trucks, the applicant has previously applied for patents such as the truck battery swapping station (Chinese Patent Publication No. CN214728296U), the electric truck side-mounted battery swapping system (Chinese Patent Publication No. CN216761523U), a rapid relocation battery swapping station (Chinese Patent Publication No. CN218431196U), and a flexible adaptive battery size battery swapping station (Chinese Patent Publication No. CN116062600A). For the rectangular battery boxes of electric trucks, a dedicated intelligent driving system is generally required, along with a battery lifting tool for truck battery swapping (Chinese Patent Publication No. CN214733866U) or a lifting tool assembly for intelligent truck battery swapping stations (Chinese Patent Publication No. CN113734947A) to lift, transfer, and replace the battery boxes.

[0003] The existing battery boxes mainly rely on fixed electric trolleys for installation, making temporary hoisting difficult. However, current battery boxes, besides being integrated with charging and battery swapping stations for stable charging and swapping of electric trucks, can also be used independently or for temporary replacement operations. This necessitates convenient hoisting of the battery boxes, and forklifts are common and flexible handling tools. Therefore, it is desirable to utilize forklifts for hoisting the battery boxes, requiring specialized lifting equipment to meet these hoisting needs. Utility Model Content

[0004] The purpose of this utility model is to provide a forklift lifting device for replacing batteries in electric heavy trucks. It can be pre-installed on the forklift to quickly and conveniently lift and move the battery box, thus improving convenience.

[0005] To achieve the above-mentioned utility model objectives, this utility model provides a forklift lifting device for replacing batteries in electric heavy trucks, which is provided with two fork tooth seats, each corresponding to one of the two fork teeth of the forklift, and the fork tooth seats have fork tooth cavities inside.

[0006] A bracket is provided above the fork seat, and a hanger is provided at the top of the bracket. The hanger has several load-bearing crossbeams, and several hooks are provided below the load-bearing crossbeams.

[0007] The fork holder, bracket, and hanger together form a frame, and the interior of the frame is a cavity to accommodate the battery box.

[0008] The hook has a straight hook arm, which is connected to the load-bearing beam via the boom. The top of the hook arm and the bottom of the load-bearing beam form a space for the lifting beam to accommodate the battery box.

[0009] As a further improvement of this utility model, a rotatable locking screw is provided on the wall surface of the fork tooth seat.

[0010] As a further improvement of this utility model, the support includes a vertically arranged upright and an obliquely arranged diagonal brace;

[0011] The diagonal brace is located at the front of the lifting device; the bottom of the diagonal brace is fixed to the fork tooth seat, and the length of the fork tooth seat is adapted to the length of the fork tooth of the forklift.

[0012] As a further improvement of this utility model, two load-bearing crossbeams are provided at the front and rear.

[0013] The spacing between the two load-bearing crossbeams is equal to the spacing between the two lifting crossbeams of the battery box.

[0014] As a further improvement of this utility model, two hooks are fixed at intervals on the load-bearing crossbeam;

[0015] The hook is welded and fixed to the load-bearing crossbeam at the top of the boom;

[0016] The top of the hook is equipped with a fixing part, which is welded and fixed to the top of the load-bearing crossbeam;

[0017] As a further improvement of this utility model, a protruding limiting feature is provided at the open end of the hook arm.

[0018] As a further improvement of this utility model, the hanger is provided with an auxiliary crossbeam on the side near the forklift;

[0019] An auxiliary positioning hook is fixed on the auxiliary crossbeam;

[0020] Along the width direction of the lifting device, the number and position of the auxiliary positioning hooks on the auxiliary crossbeam are consistent with the number and position of the hooks on the lifting crossbeam.

[0021] Furthermore, the auxiliary positioning hook has a positioning hook arm, the top surface of which is at a lower level than the top surface of the hook arm.

[0022] Furthermore, the thickness of the auxiliary positioning hook is thinner than the thickness of the hook.

[0023] When using the lifting device of this utility model, first open the forklift's forks to match the spacing of the two forklift tooth seats. Insert the forklift's forks into the forklift tooth cavity of the tooth seat, and tighten the locking screw after full insertion. The forklift's forks drive the lifting device to rise, so that the bottom of the hook arm is higher than the top of the battery box's lifting section. Then, align the cavity in the middle of the bracket with the battery box, and move forward to accommodate the battery box close to the bracket. Then lower the lifting device to an appropriate height, so that the top of the hook arm is lower than the bottom of the battery box's lifting beam. The forklift continues to move forward, so that the hook catches the lifting beam, that is, the hook arm is directly below the lifting beam. The forklift's forks then drive the lifting device to rise, so that the hook arm drags the lifting beam, thereby lifting the entire battery box together, realizing the lifting, transportation, and replacement of the battery box. During the process, the forklift operator can determine the relative position of the hook and the lifting beam by observing the relative position of the auxiliary positioning hook and the frame beam of the battery box. When the position of the auxiliary positioning hook relative to the frame beam is appropriate, it can be inferred that the position of the hook and the lifting beam is also appropriate, and then the lifting operation can be carried out.

[0024] The present invention provides a forklift lifting device for replacing batteries in electric heavy trucks. By combining it with a forklift, the battery box of the electric truck can be quickly replaced, which greatly improves the convenience of operation. The battery box will not be damaged during transportation, especially the charging and discharging interface at the bottom of the battery box. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the battery box of this utility model;

[0026] Figure 2 This is a schematic diagram illustrating the usage of a forklift lifting device for replacing batteries in electric heavy trucks according to this utility model.

[0027] Figure 3 This is a schematic diagram of the overall structure of a forklift lifting device for replacing batteries in electric heavy trucks according to the present invention.

[0028] Figure 4 This is an internal front view of a forklift lifting device for replacing batteries in an electric heavy truck according to the present invention.

[0029] Figure 5 for Figure 2 Top view;

[0030] Figure 6 for Figure 2 A schematic diagram of the combined state layout;

[0031] Figure 7 A schematic diagram of a forklift lifting device for replacing batteries in electric heavy trucks, based on this invention, is shown above.

[0032] Figure 8 A schematic diagram illustrating the working process after installing this utility model on a forklift. Detailed Implementation

[0033] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0034] like Figure 1 As shown, this is a schematic diagram of the overall structure of the battery box 1, which has a lifting section 11 at the top; the lifting section 11 has two lifting beams 12 in the middle and frame beams 13 at both ends; generally, the lifting beams 12 and frame beams 13 are a certain distance away from the battery cover plate below, which can facilitate the connection of the lifting equipment.

[0035] like Figure 2 The diagram shown illustrates how a forklift lifting device 2 for replacing batteries in an electric heavy-duty truck is combined with a battery box 1 for lifting operations.

[0036] The specific structure of the forklift lifting device 2 for replacing batteries in electric heavy trucks according to this utility model is shown in [reference needed]. Figure 3 And see further Figure 4 The device includes two fork tooth holders 21, each corresponding to one of the fork teeth of the forklift. Each fork tooth holder 21 can be made of a flat square tube and has a fork tooth cavity 22 inside, facilitating the insertion of the forklift's fork teeth. Preferably, the wall surface of the fork tooth holder 21 is provided with rotatable locking screws 23. When the forklift's fork teeth are inserted into the fork tooth cavity 22, multiple locking screws 23 can be rotated to secure them against the fork teeth, achieving a reliable connection between the fork tooth holder 21 and the fork teeth. The tail ends of the two fork tooth holders 21 are connected by a crossbeam to improve connection reliability. The front part of the two fork tooth holders 21 serves as the storage space for the battery box 1.

[0037] The present invention discloses a forklift lifting device 2 for replacing batteries of electric heavy trucks. A bracket 25 is provided above the fork tooth seat 21, a hanger 26 is provided on the top of the bracket 25, the hanger 26 has several load-bearing crossbeams 262, and several hooks 27 are provided below the load-bearing crossbeams 262.

[0038] The bracket 25 includes a vertically arranged upright and an obliquely arranged brace; the brace is located at the front of the lifting device 2 and is used to expand the length of the lifting frame 26 to match the length of the battery box 1; the bottom of the brace is fixed to the fork tooth seat 21, the length of the fork tooth seat 21 is matched with the length of the fork tooth of the fork, so as to avoid the formation of a cavity in the front of the fork tooth seat 21 without the support of the fork tooth.

[0039] The fork tines 21, bracket 25, and hanger 26 form a frame structure, wider than the battery box 1, thus enclosing the battery box 1. The hanger 26 is positioned above the fork tines 21 by the bracket 25, which is approximately 1 meter high, raising the hanger 26 by 1 meter. In actual operation, the top of the battery box 1 needs to be at least 4 meters off the ground for handling and replacement. Therefore, with this structural design, the forklift can reduce its lifting distance by 1 meter, requiring only a 3-meter lifting height, thus accommodating more forklifts without needing for those with higher lifting heights. Furthermore, the bottom of the fork tines 21 is on the ground, while the hook 27 below the hanger 26 is suspended, facilitating handling and placement of the lifting device 2 without damaging the hook 27.

[0040] The hanger 26 has a longitudinal beam 261 extending from the rear to the front, reaching the position of the lifting beam 12 at the front of the battery box 1; between the longitudinal beams 261, there are corresponding load-bearing beams 262 according to the position of the lifting beam 12 of the battery box 1, as shown in the figure, there are two of them, and the spacing between the lifting beams 12 is equal to the spacing between the load-bearing beams 262.

[0041] Two hooks 27 are fixed at intervals on the load-bearing crossbeam 262. Each hook 27 has a straight hook arm 271, which is connected to the load-bearing crossbeam 262 via the boom 272, creating a space between the top of the hook arm 271 and the bottom of the load-bearing crossbeam 262 to accommodate the lifting crossbeam 12. The hooks 27 are generally welded to the load-bearing crossbeam 262 via the upper part of the boom 272. To improve connection reliability, a fixing part 274 is also provided at the top of the hook 27, further welded to the top of the load-bearing crossbeam 262, thus better bearing the lifting force. A protruding limiting part 272 is also provided at the open end of the hook arm 271.

[0042] When using the lifting device 2 of this utility model, first open the forklift's forks to match the spacing of the two forklift tooth seats 21. Then, insert the forklift's operating forks into the forklift tooth cavity 22 of the forklift tooth seat 21. After full insertion, tighten the locking screw 23 to form a shape as shown in the figure. Figure 7The forklift's forks lift the lifting device 2, so that the bottom of the hook arm 271 of the hook 27 is higher than the top of the lifting section 11 of the battery box 1. Then, the forklift aligns the cavity in the middle of the bracket 25 with the battery box 1, and moves forward to accommodate the battery box 1 close to the bracket 25. The lifting device 2 is then lowered to an appropriate height, so that the top of the hook arm 271 of the hook 27 is lower than the bottom of the lifting beam 12 of the battery box 1. The forklift continues to move forward, so that the hook 27 catches the lifting beam 12, that is, the hook arm 271 is directly below the lifting beam 12. The forklift's forks then lift the lifting device 2, so that the hook arm 271 of the hook 27 supports the lifting beam 12, thereby lifting the entire battery box 1 together, achieving the lifting, transporting, and replacement of the battery box 1. Figure 5 , Figure 6 As shown.

[0043] However, since the lifting device 2 of this utility model is relatively high when the forklift is being operated, and the hook 27 is completely located inside the battery box 1, it is difficult for the forklift operator to observe it directly with the naked eye, thus increasing the difficulty of operation. Therefore, this utility model provides an auxiliary positioning hook 28 in an area close to the forklift that is convenient for the forklift operator to observe.

[0044] The lifting frame 26 has an auxiliary crossbeam 263 near the forklift side, which corresponds to the frame crossbeam 13 on the battery box 1. An auxiliary positioning hook 28 is fixed to the auxiliary crossbeam 263. Two auxiliary positioning hooks 28 are provided, and their distribution on the auxiliary crossbeam 263 along the width direction of the lifting device 2 is consistent with the distribution of the hook 27 on the lifting crossbeam 12. The auxiliary positioning hook 28 also has a positioning hook arm 281. Preferably, the top surface of the positioning hook arm 281 is slightly lower than the top surface of the hook arm 271. Since the auxiliary positioning hook 28 only serves an auxiliary positioning function, the material thickness of the auxiliary positioning hook 28 can be slightly thinner than the material thickness of the hook 27. Therefore, during forklift operation, the forklift operator can determine the relative position of the hook 27 and the lifting beam 12 by observing the relative position of the auxiliary positioning hook 28 and the frame beam 13 of the battery box 1. When the position of the auxiliary positioning hook 28 relative to the frame beam 13 is appropriate, it can be inferred that the positions of the hook 27 and the lifting beam 12 are also appropriate. Then, the lifting operation can be carried out, and the battery box 1 can be easily lifted and moved using the lifting device 2 of this utility model. Figure 8 As shown.

[0045] The forklift lifting device 2 of this utility model for replacing batteries in electric heavy trucks, combined with a forklift, can quickly perform battery replacement operations on the battery box 1 of electric trucks, greatly improving the convenience of operation. The battery box 1 will not be damaged during transportation, especially the charging and discharging interface at the bottom of the battery box 1.

[0046] Compared to the new energy heavy truck battery pack side-changing forklift arm device with Chinese patent publication number CN223016440U, the forklift lifting device for changing batteries of electric heavy trucks of this utility model can be directly pre-installed on ordinary forklifts, without requiring the forklift to have the opening and retracting function of the fork teeth, making it more convenient to use.

[0047] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A forklift lifting device for replacing batteries in electric heavy-duty trucks, characterized in that, It is equipped with two fork tooth holders, which correspond to the two fork teeth of the forklift respectively, and the fork tooth holders have fork tooth cavities inside; A bracket is provided above the fork seat, and a hanger is provided at the top of the bracket. The hanger has several load-bearing crossbeams, and several hooks are provided below the load-bearing crossbeams. The fork holder, bracket, and hanger together form a frame, and the interior of the frame is a cavity to accommodate the battery box. The hook has a straight hook arm, which is connected to the load-bearing beam via the boom. The top of the hook arm and the bottom of the load-bearing beam form a space for the lifting beam to accommodate the battery box.

2. The forklift lifting device for replacing batteries in electric heavy-duty trucks as described in claim 1, characterized in that, A rotatable locking screw is provided on the wall of the fork seat.

3. A forklift lifting device for replacing batteries in electric heavy-duty trucks as described in claim 1, characterized in that, The support structure includes vertically installed uprights and diagonally installed diagonal braces; The diagonal brace is located at the front of the lifting device; the bottom of the diagonal brace is fixed to the fork tooth seat, and the length of the fork tooth seat is adapted to the length of the fork tooth of the forklift.

4. A forklift lifting device for replacing batteries in electric heavy-duty trucks as described in claim 1, characterized in that, It is equipped with two load-bearing crossbeams, one at the front and one at the back. The spacing between the two load-bearing crossbeams is equal to the spacing between the two lifting crossbeams of the battery box.

5. A forklift lifting device for replacing batteries in electric heavy-duty trucks as described in claim 1, characterized in that, Two hooks are fixed at intervals on the load-bearing crossbeam; The hook is welded and fixed to the load-bearing crossbeam at the top of the boom; The top of the hook is equipped with a fixing part, which is welded and fixed to the top of the load-bearing crossbeam.

6. A forklift lifting device for replacing batteries in electric heavy-duty trucks as described in claim 1, characterized in that, A protruding limit is provided at the open end of the hook arm.

7. A forklift lifting device for replacing batteries in electric heavy-duty trucks as described in claim 1, characterized in that, The hanger has an auxiliary crossbeam on the side closest to the forklift; An auxiliary positioning hook is fixed on the auxiliary crossbeam; Along the width direction of the lifting device, the number and position of the auxiliary positioning hooks on the auxiliary crossbeam are consistent with the number and position of the hooks on the lifting crossbeam.

8. A forklift lifting device for replacing batteries in electric heavy-duty trucks as described in claim 7, characterized in that, The auxiliary positioning hook has a positioning hook arm, and the top surface of the positioning hook arm is at a lower level than the top surface of the hook arm.

9. A forklift lifting device for replacing batteries in electric heavy-duty trucks as described in claim 7, characterized in that, The thickness of the auxiliary positioning hook is thinner than that of the hook.

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