Improved electric forklift battery box and electric forklift

Abstract

The invention provides an improved electric forklift truck battery box and an electric forklift truck, and belongs to the technical field of battery boxes, the electric forklift truck battery box comprises an outer battery box body, buffer baffle assemblies are symmetrically installed on the front side and the rear side of the interior of the outer battery box body, and a limiting guide rail assembly is installed outside each buffer baffle assembly; an inner battery box body is arranged between the two buffer baffle assemblies, grooves are integrally formed in the front side and the rear side of the outer battery box body, and communicating pipes are integrally arranged at the positions, where the grooves are formed, of the outer battery box body. According to the invention, when the inner battery box body moves downwards, the lower end of the inner battery box body gradually pushes the baffle plate in an inclined state to a vertical state, and at the moment, air in the air bag is discharged through the communicating pipe, the connecting pipe and the air valve, so that the impact on the battery when the battery and the inner battery box body are put into the air bag is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery boxes, and particularly relates to an improved battery box for an electric forklift and an electric forklift. Background Art

[0002] An electric forklift is a forklift that uses electric energy as a power source and is usually composed of a battery, a motor, a control system, and a hydraulic system. It is mainly used for tasks such as cargo handling, stacking, and loading and unloading. An electric forklift usually has a battery box installed inside for placing the battery;

[0003] Currently, there is an electric forklift battery box body with the application number 202221136661.3, which includes a box body, a cover plate, and a reinforcing steel plate. The reinforcing steel plate is arranged on the inner side wall of the box body; the top of the box body has an opening, and the cover plate covers the opening of the box body and is hermetically connected to the reinforcing steel plate inside the box body to form a hollow cavity; this kind of electric forklift battery box body increases the strength of the battery box by setting the reinforcing steel plate;

[0004] The electric forklift battery box body with the application number 202022519693.9 includes: a box body main body having a battery installation opening; a partition plate horizontally arranged in the cavity of the box body main body to divide the cavity of the box body main body into a battery cavity and a counterweight cavity; this kind of electric forklift battery box body is internally provided with an installation cavity for placing the battery;

[0005] For the battery box bodies of the above-mentioned electric forklifts in the prior art, the battery box bodies are composed of steel structures and are internally provided with cavities for placing batteries. When using this kind of battery box body, the user needs to first install the battery into the battery box and then hoist the battery box onto the forklift. However, during the process of placing the battery box, the buffering effect on the placement of the battery is relatively low, so it is easy to cause impact on the battery and affect the quality of the battery. Moreover, after the battery is placed in the battery box, the battery is in contact with the inner wall of the battery box, and the heat generated when the battery is used is not easily discharged from the battery box. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides an improved battery box for an electric forklift and an electric forklift, which can reduce the impact on the battery when the battery is placed and make there be a heat dissipation space between the battery and the battery box.

[0007] Among them, the present invention is realized through the following technical solutions:

[0008] An improved battery box for an electric forklift and an electric forklift, including an outer battery box body. Buffer baffle assemblies are symmetrically installed on the front and rear sides inside the outer battery box body. A limit guide rail assembly is installed outside each of the buffer baffle assemblies. An inner battery box body is arranged between the two buffer baffle assemblies. Grooves are integrally provided on the front and rear sides of the outer battery box body. A communicating pipe is integrally provided at the position of the outer battery box body where the groove is provided. The two ends of the communicating pipe respectively extend to the inside and outside of the outer battery box body. An air valve is fixedly installed at the upper part of the position of the outer battery box body where the groove is provided. The limit guide rail assembly includes two oppositely arranged guide rails. A first limit groove is opened at the upper part inside each of the guide rails. A second limit groove is opened at the upper part outside each of the guide rails. The buffer baffle assembly includes a baffle. A first grille part is installed on the upper side inside the baffle. A second grille part is installed on the lower side inside the baffle. Rotating protrusions are integrally provided on the left and right sides at the rear of the upper end of the baffle. A rotating column is fixedly installed on the outside of each of the rotating protrusions. The rotating column includes an integrally provided inner column body and outer column body. An airbag is fixedly installed at the middle part of the side of the baffle facing the inner wall of the outer battery box body. The airbag is integrally provided with a connector for inflating and deflating. Grille plates are fixedly installed at the openings on the front and rear sides of the inner battery box body. Lifting holes are opened at the four corner parts of the inner battery box body.

[0009] Preferably, a hose is installed between the connector and the end of the communicating pipe arranged inside the outer battery box body.

[0010] Preferably, the first limit groove and the second limit groove are communicated.

[0011] Preferably, the inner column body is arranged in the first limit groove.

[0012] Preferably, the outer column body is arranged in the second limit groove.

[0013] Preferably, square steels are fixedly installed at the lower parts of the inner walls on the front and rear sides of the outer battery box body.

[0014] Preferably, dampers are arranged on both sides of the upper part of each square steel.

[0015] Preferably, one end of the damper is fixedly installed with the outer battery box body.

[0016] Preferably, a connecting pipe is installed between the outer end of the communicating pipe and the air valve.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. In the present invention, when the inner battery box moves downward, the lower end of the inner battery box gradually pushes the inclined baffle to a vertical state. At this time, the gas in the airbag is discharged through the connecting pipe, the connecting tube and the air valve, reducing the impact on the battery when the battery is placed into the inner battery box.

[0019] 2. In the present invention, the first grille part, the second grille part and the grille plate separate the inner battery box from the outer battery box, creating a heat dissipation space between the battery and the inner battery box and between the inner battery box and the outer battery box, enabling the battery to dissipate heat better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention.

[0021] Figure 2 is a schematic structural diagram of the buffer baffle assembly of the present invention.

[0022] Figure 3 is a schematic rear view structural diagram of the buffer baffle assembly of the present invention.

[0023] Figure 4 is a schematic structural diagram of the limit guide rail assembly of the present invention.

[0024] Figure 5 is a schematic structural diagram of the cooperation between the buffer baffle assembly and the inner battery box of the present invention.

[0025] Figure 6 is a schematic structural diagram of the electric forklift of the present invention.

[0026] In the figure:

[0027] 1. Outer battery box; 2. Limit guide rail assembly; 3. Buffer baffle assembly; 4. Inner battery box; 5. Forklift main body; 51. Forklift lifting module; 52. Cover plate; 53. Seat; 11. Groove; 12. Connecting pipe; 13. Connecting tube; 14. Air valve; 15. Square steel; 16. Damper; 21. Guide rail; 22. First limit slot; 23. Second limit slot; 31. Baffle; 32. First grille part; 33. Second grille part; 34. Rotating protrusion; 35. Rotating column; 351. Inner cylinder; 352. Outer cylinder; 36. Airbag; 361. Connector; 362. Hose; 41. Grille plate; 42. Hoisting hole. DETAILED DESCRIPTION OF THE INVENTION

[0028] The present invention will be specifically described below with reference to the accompanying drawings. As shown in the attached... Figure 1As shown in the figure, an improved electric forklift battery box and an electric forklift include an outer battery box body 1. Buffer baffle assemblies 3 are symmetrically installed on the front and rear sides inside the outer battery box body 1. A limiting guide rail assembly 2 is installed outside each of the buffer baffle assemblies 3. An inner battery box body 4 is arranged between the two buffer baffle assemblies 3. Fillets are provided at the lower part of the inner battery box body 4 near the edges of the buffer baffle assemblies 3, and the fillets reduce the scratching between the inner battery box body 4 and the buffer baffle assemblies 3. Grooves 11 are integrally provided on the front and rear sides of the outer battery box body 1. A communicating pipe 12 is integrally provided at the position of the outer battery box body 1 where the grooves 11 are provided. The two ends of the communicating pipe 12 respectively extend to the inside and outside of the outer battery box body 1. An air valve 14 is fixedly installed at the upper part of the position of the outer battery box body 1 where the grooves 11 are provided.

[0029] In this embodiment, specifically, square steels 15 are fixedly installed at the lower parts of the inner walls on the front and rear sides of the outer battery box body 1. The square steels 15 can support the baffle 31, so that the baffle 31 is in a vertical state after the inner battery box body 4 is filled.

[0030] In this embodiment, specifically, dampers 16 are provided on both sides of the upper part of each square steel 15. The dampers 16 hold the vertical baffle 31, reducing the vibration of the baffle 31 when the forklift main body 5 moves, and making the baffle 31 more firm.

[0031] In this embodiment, specifically, one end of the damper 16 is fixedly installed with the outer battery box body 1.

[0032] In this embodiment, specifically, a connecting pipe 13 is installed between the outer end of the communicating pipe 12 and the air valve 14.

[0033] In this embodiment, in combination with the attached Figure 2 and attached Figure 3 As shown in the figure, the buffer baffle assembly 3 includes a baffle 31. A first grid part 32 is installed on the upper side inside the baffle 31. A second grid part 33 is installed on the lower side inside the baffle 31. Rotating protrusions 34 are integrally provided on the left and right sides at the rear of the upper end of the baffle 31. A rotating column 35 is fixedly installed on the outside of each rotating protrusion 34. The rotating column 35 includes an inner column body 351 and an outer column body 352 which are integrally provided. An airbag 36 is fixedly installed in the middle of the side of the baffle 31 facing the inner wall of the outer battery box body 1. The airbag 36 is integrally provided with a joint 361 for inflating and deflating.

[0034] In this embodiment, specifically, a hose 362 is installed between the joint 361 and the end of the communicating pipe 12 arranged inside the outer battery box body 1.

[0035] In this embodiment, in combination with the attached Figure 4As shown in the figure, the limit guide rail assembly 2 includes two guide rails 21 arranged opposite to each other. At the upper part of the inner side of each guide rail 21, a first limit groove 22 is provided, and at the upper part of the outer side of each guide rail 21, a second limit groove 23 is provided. The two pairs of guide rails 21 are respectively fixed on the front and rear sides inside the outer battery box 1.

[0036] In this embodiment, specifically, the first limit groove 22 and the second limit groove 23 are communicated.

[0037] In this embodiment, specifically, the inner cylinder 351 is arranged in the first limit groove 22.

[0038] In this embodiment, specifically, the outer cylinder 352 is arranged in the second limit groove 23.

[0039] In this embodiment, in combination with the attached Figure 5 As shown in the figure, grille plates 41 are fixedly installed at the openings on the front and rear sides of the inner battery box 4, and lifting holes 42 are provided at the four corners of the inner battery box 4.

[0040] In this embodiment, specifically, the outer battery box 1 is installed and fixed on the forklift body 5. The inflation port of the external inflation device is connected to the air valve 14. The airbag 36 is inflated through the connecting pipe 13 and the communicating pipe 12. The airbag 36 pushes the baffle 31 into an inclined shape. At this time, the upper end of the baffle 31 descends along the guide rail 21 through the rotating column 35. The rotating column 35, the first limit groove 22 and the second limit groove 23 play a role in limiting the upper part of the baffle 31. The battery is placed in the inner battery box 4. The inner battery box 4 is lifted by using an external lifting device through the lifting hole 42. The external inflation device is disconnected from the air valve 14, and the air valve 14 is opened. When the inner battery box 4 moves downward, the lower end of the inner battery box 4 gradually pushes the baffle 31 to a vertical state. At this time, the gas in the airbag 36 is discharged through the communicating pipe 12, the connecting pipe 13 and the air valve 14, reducing the impact on the battery when the battery and the inner battery box 4 are placed. There is a heat dissipation space between the battery and the inner battery box 4, and between the inner battery box 4 and the outer battery box 1, enabling the battery to dissipate heat better.

[0041] In this embodiment, in combination with the attached Figure 6 As shown in the figure, an electric forklift includes a forklift body 5, a forklift lifting module 51 installed on the forklift body 5, a battery box, a cover plate 52 provided on the battery box, and a seat 53 installed on the cover plate 52.

[0042] Using the technical solution of the present invention, or those skilled in the art being inspired by the technical solution of the present invention to design similar technical solutions and achieving the above technical effects shall fall within the protection scope of the present invention.

Claims

1. An improved electric forklift battery box, characterized in that: The improved electric forklift battery box comprises an outer battery box (1), wherein buffer baffle assemblies (3) are symmetrically installed on the front and rear sides of the inner part of the outer battery box (1), a limiting guide rail assembly (2) is installed on the outside of each of the buffer baffle assemblies (3), an inner battery box (4) is arranged between the two buffer baffle assemblies (3), a groove (11) is integrally arranged on the front and rear sides of the outer battery box (1), a connecting pipe (12) is integrally arranged at the position where the groove (11) is arranged on the outer battery box (1), two ends of the connecting pipe (12) extend to the inside and outside of the outer battery box (1) respectively, an air valve (14) is fixedly installed on the upper part of the position where the groove (11) is arranged on the outer battery box (1), and the limiting guide rail assembly (2) comprises two guide rails (21) arranged opposite to each other, each guide rail (21) is provided with a first limiting groove (22) on the inner upper part, and each guide rail ( A second limiting groove (23) is provided on the upper outer side of the baffle (31), the buffer baffle assembly (3) comprises a baffle (31), a first grille portion (32) is installed on the inner upper side of the baffle (31), a second grille portion (33) is installed on the inner lower side of the baffle (31), rotating protrusions (34) are integrally provided on the left and right sides of the rear side of the upper end of the baffle (31), a rotating column (35) is fixedly installed on the outer side of each rotating protrusion (34), the rotating column (35) comprises an inner column (351) and an outer column (352) which are integrally provided, an air bag (36) is fixedly installed on the middle part of one side of the baffle (31) facing the inner wall of the outer battery box (1), the air bag (36) is integrally provided with a joint (361) for inflation and deflation, grille plates (41) are fixedly installed at the front and rear openings of the inner battery box (4), and lifting holes (42) are provided at the four corners of the inner battery box (4).

2. The improved electric forklift battery box as claimed in claim 1, characterized in that: A hose (362) is installed between the joint (361) and one end of the connecting pipe (12) disposed inside the outer battery box (1).

3. The improved electric forklift battery box as claimed in claim 1, characterized in that: The first limiting groove (22) is connected to the second limiting groove (23).

4. The improved electric forklift battery box as claimed in claim 1, characterized in that: The inner cylinder (351) is arranged in the first limiting groove (22).

5. The improved electric forklift battery box as claimed in claim 1, characterized in that: The outer column (352) is arranged in the second limiting groove (23).

6. The improved electric forklift battery box as claimed in claim 1, characterized in that: Square steel (15) is fixedly mounted on the lower parts of the inner walls on both the front and rear sides of the outer battery box (1).

7. The improved electric forklift battery box as claimed in claim 1, characterized in that: Dampers (16) are provided on both sides of the upper part of each square steel (15).

8. The improved electric forklift battery box as claimed in claim 1, characterized in that: One end of the damper (16) is fixedly mounted on the outer battery box (1).

9. The improved electric forklift battery box as claimed in claim 1, characterized in that: A connecting pipe (13) is installed between the outer end of the connecting pipe (12) and the air valve (14).

10. An electric forklift, comprising a forklift body (5), a forklift lifting module (51) mounted on the forklift body (5), a battery box, a cover plate (52) arranged on the battery box, and a seat (53) mounted on the cover plate (52), characterized in that: The battery box is the battery box described in any one of claims 1 to 9.

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