Battery protection device of electric forklift

Abstract

The utility model discloses a battery protection device of an electric forklift, relates to the technical field of battery protection, and aims to provide the battery protection device of the electric forklift, which can take out a battery from a protection box without manpower and external hoisting equipment, and has the technical key points that the battery protection device comprises the protection box, and a lifting mechanism is arranged in the protection box; a lifting mechanism is arranged on the base, a placement plate is arranged on the side face of the lifting mechanism, threaded sleeves matched with the lifting mechanism in a threaded mode are arranged on the two sides of the placement plate, and the placement plate is used for bearing a battery. The threaded rod drives the placement plate to be lifted upwards through the threaded sleeve, the placement plate supports the battery, the purpose of rapidly lifting the battery out of the protection box is achieved, external hoisting equipment does not need to be used, on one hand, expenditure of the hoisting equipment is saved, and on the other hand, safety and reliability in the lifting process are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of battery protection, in particular to a battery protection device for an electric forklift. Background Art

[0002] With the rapid development of new energy technologies, electric forklifts are also widely used in factories. They have many advantages such as high efficiency, low noise, low pollution and low cost. In order to ensure the safety of electric forklift batteries, iron protective boxes are usually used to protect the batteries. Although this method has a protective effect, it makes the removal and maintenance of batteries particularly difficult. Usually, manpower is required to cooperate with lifting equipment to remove the batteries. This method is time-consuming and labor-intensive, and the efficiency is very low, which reduces the convenience of battery maintenance. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies of the prior art, the utility model provides a battery protection device for an electric forklift, which can take the battery out of a protection box without the need for manpower and external lifting equipment.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a battery protection device for an electric forklift, comprising a protection box, a lifting mechanism is arranged in the protection box, a placement plate is arranged on the side of the lifting mechanism, threaded sleeves matching with the threads of the lifting mechanism are arranged on both sides of the placement plate, and the placement plate is used to carry the battery;

[0007] The lifting mechanism includes a bearing seat, a threaded rod and a driving component. The bearing seat is arranged on the inner wall of the protective box, the threaded rod is rotatably connected in the bearing seat, and the threaded rod is threadably matched with the threaded sleeve. The driving component is arranged at the bottom end of the protective box and is transmission-connected to the threaded rod.

[0008] Preferably, slide rails are provided on both sides of the protection box away from the threaded rod, and sliding blocks slidably connected thereto are provided on both sides of the placement plate corresponding to the slide rails, and the slide rails are used to maintain the balance of the placement plate.

[0009] Preferably, the driving component includes a motor, a worm and a worm wheel. The motor is arranged at the bottom of the protective box, and the motor is connected to the worm through a bevel gear. The worm is meshed with the worm wheel, and the worm wheel is arranged under the threaded rod.

[0010] Preferably, heat dissipation components are provided on both sides of the protection box, and the heat dissipation components include an air inlet and an air outlet, and the air inlet and the air outlet are arranged on both sides of the protection box opposite to each other.

[0011] Preferably, insulating pads are provided on the placement plate, and the insulating pads are arranged in a rectangular array with gaps left between the insulating pads.

[0012] Preferably, a ventilation hole is provided on the placement plate at a position located in the gap between the insulating pads, and the ventilation hole connects the upper part and the lower part of the placement plate.

[0013] Preferably, a support frame is provided at the bottom of the protection box, the height of the support frame is higher than the driving component, and the top of the support frame is in contact with the bottom of the placement plate.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a battery protection device for an electric forklift, which has the following beneficial effects:

[0016] 1. By setting threaded rods and driving components, when the battery needs to be maintained or replaced, the driving components drive the threaded rods on both sides to rotate synchronously, and the threaded rods drive the placement plate to lift upward through the threaded sleeves. The placement plate lifts the battery to achieve the purpose of quickly lifting the battery out of the protective box, and there is no need to use external lifting equipment. On the one hand, it saves the expenditure on lifting equipment, and on the other hand, it ensures the safety and reliability of the lifting process.

[0017] 2. By setting up a support frame and a placement plate, the support frame supports and limits the placement plate. On the one hand, it can directly bear the gravity of the placement plate to prevent the threaded rod from being subjected to force for a long time. On the other hand, a gap can be left between the placement plate and the bottom of the protective box, which can be used to place driving components and for ventilation. The placement plate directly carries the battery, and the placement plate uses the insulating pad and air holes provided on the upper part to avoid electrical connection between the placement plate and the protective box, while ensuring ventilation and air permeability at the bottom of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross section of the protection box of the utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of the placement plate of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of the driving component of the utility model.

[0022] In the figure: 1. protective box; 2. lifting mechanism; 21. bearing seat; 22. threaded rod; 23. driving component; 231. motor; 232. worm; 233. worm wheel; 3. slide rail; 4. heat dissipation component; 5. support frame; 6. mounting plate; 7. threaded sleeve; 8. air vent; 9. insulating pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 A battery protection device for an electric forklift includes a protection box 1, a lifting mechanism 2 is arranged in the protection box 1, a placement plate 6 is arranged on the side of the lifting mechanism 2, threaded sleeves 7 are arranged on both sides of the placement plate 6 and are matched with the lifting mechanism 2 thread, and the placement plate 6 is used to carry the battery;

[0025] The lifting mechanism 2 includes a bearing seat 21, a threaded rod 22 and a driving component 23. The bearing seat 21 is arranged on the inner wall of the protection box 1. The threaded rod 22 is rotatably connected in the bearing seat 21, and the threaded rod 22 is threadedly matched with the threaded sleeve 7. The driving component 23 is arranged at the bottom end of the protection box 1 and is transmission-connected with the threaded rod 22.

[0026] In the utility model, a threaded rod 22 and a placement plate 6 are provided, and the battery is placed and fixed by the placement plate 6, and the threaded rod 22 is used to lift and lower the placement plate 6 to achieve the purpose of taking the battery out of the protective box 1, thereby solving the problem of the traditional protective box 1 that it is difficult to take the battery out after it is placed, and improving the convenience of taking the battery out and maintaining the battery.

[0027] Slide rails 3 are provided on both sides of the protective box 1 away from the threaded rod 22, and sliders slidably connected to the two sides of the placement plate 6 corresponding to the slide rails 3 are provided, and the slide rails 3 are used to maintain the balance of the placement plate 6;

[0028] By setting the slide rail 3, the slide rail 3 plays a limiting role on the placement plate 6. The slide rail 3 can ensure that the placement plate 6 maintains balance and stability during the rising and falling processes, avoid the placement plate 6 from tilting, and ensure the safety and stability of the battery.

[0029] The driving component 23 includes a motor 231, a worm 232 and a worm wheel 233. The motor 231 is arranged at the bottom of the protection box 1, and the motor 231 is connected to the worm 232 through a bevel gear. The worm 232 is meshed with the worm wheel 233, and the worm wheel 233 is arranged under the threaded rod 22.

[0030] By providing the worm wheel 233 and the worm 232 and utilizing the transmission method of the worm wheel 233 and the worm 232, the stable rotation of the threaded rod 22 can be ensured, and both have self-locking elasticity, which can ensure the firmness of the threaded rod 22 when not in operation and avoid the problem of the placement plate 6 sliding down under weight.

[0031] Heat dissipation components 4 are provided on both sides of the protection box 1. The heat dissipation components 4 include an air inlet and an air outlet. The air inlet and the air outlet are arranged on both sides of the protection box 1 opposite to each other.

[0032] By providing the heat dissipation component 4, the external airflow can be introduced into the protection box 1 by utilizing the heat dissipation component 4, and the hot air in the protection box 1 can be discharged at the same time, so as to avoid the problem that the battery is overheated in the protection box 1 and thus damaged.

[0033] Insulating pads 9 are provided on the placement plate 6, and the insulating pads 9 are arranged in a rectangular array, and gaps are left between the insulating pads 9;

[0034] By providing the insulating pad 9, the insulating pad 9 can isolate the placement plate 6 from the battery, so as to prevent the placement plate 6 and the protection box 1 from being electrically connected when the battery is damaged and leaks electricity, thereby ensuring safety during maintenance and replacement of the battery.

[0035] A vent hole 8 is provided on the placement plate 6 at a position located at the gap between the insulating pads 9, and the vent hole 8 connects the upper part and the lower part of the placement plate 6;

[0036] By providing the air holes 8, the air holes 8 can connect the upper part of the placement plate 6 with the lower space, so that air can flow under the battery, ensuring the heat dissipation effect of the bottom of the battery and avoiding overheating and damage to the battery.

[0037] A support frame 5 is provided at the bottom of the protection box 1. The height of the support frame 5 is higher than the driving component 23, and the top of the support frame 5 is in contact with the bottom of the placement plate 6.

[0038] By setting up the support frame 5, the support frame 5 can carry and support the placement plate 6, and can directly bear the gravity of the placement plate 6, thereby preventing the threaded rod 22 from being subjected to stress for a long time and ensuring the service life of the threaded rod 22. At the same time, the support frame 5 can leave enough space between the placement plate 6 and the bottom of the protective box 1 to ensure the placement of the driving component 23 and ensure the circulation of airflow.

[0039] Working principle:

[0040] When the battery needs to be taken out, the motor 231 is started, the motor 231 drives the worm 232 to rotate through the bevel gear, the worm 232 drives the threaded rod 22 to rotate in the bearing seat 21 through the worm wheel 233, and the threaded rod 22 drives the placement plate 6 to move upward through the threaded sleeve 7, and the placement plate 6 lifts the battery out of the protective box 1;

[0041] After the battery is replaced, repeat the above movement in reverse to move the battery into the protective box 1. Finally, the placement plate 6 drops the battery onto the support frame 5. At this time, the heat dissipation component 4 will drive the external airflow into the protective box 1 and discharge the airflow in the protective box 1, so that the airflow exchanges heat with the battery. At the same time, the insulating pad 9 separates the battery from the placement plate 6 to avoid power connection problems.

[0042] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. A battery protection device for an electric forklift, comprising a protection box (1), characterized in that: The protective box (1) is provided with a lifting mechanism (2), a placement plate (6) is provided on the side of the lifting mechanism (2), threaded sleeves (7) that are threadedly matched with the lifting mechanism (2) are provided on both sides of the placement plate (6), and the placement plate (6) is used to carry batteries; The lifting mechanism (2) comprises a bearing seat (21), a threaded rod (22) and a driving component (23); the bearing seat (21) is arranged on the inner wall of the protective box (1); the threaded rod (22) is rotatably connected in the bearing seat (21), and the threaded rod (22) is threadedly matched with the threaded sleeve (7); the driving component (23) is arranged at the bottom end of the protective box (1) and is transmission-connected to the threaded rod (22).

2. The battery protection device for an electric forklift according to claim 1, characterized in that: Slide rails (3) are provided on both sides of the protection box (1) away from the threaded rod (22), and sliding blocks slidably connected to the slide rails (3) are provided on both sides of the placement plate (6) corresponding to the slide rails (3), and the slide rails (3) are used to maintain the balance of the placement plate (6).

3. The battery protection device for an electric forklift according to claim 1, characterized in that: The driving component (23) comprises a motor (231), a worm (232) and a worm wheel (233); the motor (231) is arranged at the bottom of the protection box (1), and the motor (231) is connected to the worm (232) through a bevel gear; the worm (232) is meshed with the worm wheel (233); and the worm wheel (233) is arranged under the threaded rod (22).

4. The battery protection device for an electric forklift according to claim 1, characterized in that: Heat dissipation components (4) are provided on both sides of the protection box (1), and the heat dissipation components (4) include an air inlet and an air outlet, and the air inlet and the air outlet are arranged opposite to each other on both sides of the protection box (1).

5. The battery protection device for an electric forklift according to claim 1, characterized in that: Insulating pads (9) are provided on the placement plate (6), and the insulating pads (9) are arranged in a rectangular array, with gaps left between the insulating pads (9).

6. The battery protection device for an electric forklift according to claim 5, characterized in that: A vent hole (8) is provided on the placement plate (6) at a position located in the gap between the insulating pads (9), and the vent hole (8) connects the upper part and the lower part of the placement plate (6).

7. The battery protection device for an electric forklift according to claim 1, characterized in that: A support frame (5) is provided at the bottom of the protection box (1); the height of the support frame (5) is higher than the driving component (23); and the top of the support frame (5) is in contact with the bottom of the placement plate (6).

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