Limiting assembly for fire water tank

Abstract

The utility model discloses a fire water tank limiting assembly which is used for limiting a first roller at the bottom of a water tank on a guide rail matched with the first roller. Comprising a limiting block fixed to the top of the guide rail and used for limiting one side of the first roller, and a limiting column used for limiting the other side of the first roller. The wedge block is used for driving the top of the limiting column to upwards penetrate through the limiting hole of the guide rail and limiting the other side of the first roller or driving the top of the limiting column to downwards move into the limiting hole. By designing a limiting structure formed by the wedge blocks, the limiting columns, the positioning blocks and the like, the water tank is limited by limiting the idler wheels, when the water tank is limited, it can be guaranteed that a thermal runaway battery is placed above the water tank through the battery transfer equipment, and when the water tank is not limited by the limiting columns any more, the water tank is not limited by the limiting columns any more. And the water tank can be moved out of the mounting frame, so that subsequent treatment is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of power swapping equipment technology, specifically to a fire water tank limiting component. Background Technology

[0002] New energy passenger vehicles with swappable batteries typically use chassis-based battery swapping for rapid energy replenishment. The driver drives the vehicle to the nearest battery swapping station for the swapping process.

[0003] Improper storage of battery packs in the mounting racks within battery swapping stations or inevitable thermal runaway during charging can lead to battery pack thermal runaway. Failure to address thermal runaway batteries promptly can result in fires or even explosions. Thermal runaway batteries are typically removed from the battery racks using battery transfer equipment (such as swapping equipment or stacker cranes) and then transferred to a lifting drive assembly on a fire-fighting water tank within the battery rack. The lifting drive assembly then lowers the batteries into the water tank for cooling and fire extinguishing (as disclosed in patents CN222467913U and CN218280383U, among others).

[0004] In existing technologies, after the thermal runaway battery is processed, the water tank needs to be removed to process the battery inside. To facilitate removal, rollers and guide rails are usually installed at the bottom of the water tank. The guide rails typically have a limiting block on one side of the rollers to keep the water tank in place, while the other side does not have a limiting block. When the battery transfer equipment transfers the thermal runaway battery to the water tank, the water tank may move on the guide rails, preventing the thermal runaway battery from being placed in the predetermined position on the water tank, thus affecting subsequent battery processing. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a fire water tank limiting component, which limits the two sides of the first roller at the bottom of the water tank and the limiting post on one side is a liftable structure, which facilitates the positioning of the water tank and the removal after handling the thermal runaway battery.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a fire water tank limiting assembly, used to limit the first roller at the bottom of the water tank on a guide rail that matches the first roller. The key features are: a limiting block fixed to the top of the guide rail and limiting one side of the first roller, a limiting post for limiting the other side of the first roller, a wedge that drives the top of the limiting post to move upward through the limiting hole of the guide rail and limit the other side of the first roller, or drives the top of the limiting post to move downward into the limiting hole, and a matching wedge driving assembly.

[0007] Furthermore, the wedge drive assembly includes a linear drive component connected to the wedge.

[0008] Furthermore, the guide rail is fixed on the mounting bracket, and the wedge drive assembly includes a drive rod connected to the wedge and driven by an external force, and a wedge reset assembly disposed between the drive rod and the mounting bracket. The wedge reset assembly includes a drive plate connected to the drive rod and a reset spring disposed between the drive plate and the mounting bracket. The drive plate and the limiting block are located on the same side of the first roller.

[0009] Furthermore, two slide rods are provided between the drive plate and the mounting bracket, and guide holes matching the slide rods are provided on the mounting bracket, with the return spring fitted onto the slide rods.

[0010] Furthermore, a limiting slope is provided at the top of the limiting post.

[0011] Furthermore, a bottom boss is provided at the bottom of the limiting post, and a guide slope that cooperates with the wedge block is provided on the bottom boss.

[0012] Furthermore, the guide rail is a square tube with its top end confined within the annular groove of the first roller, and both the bottom boss and the wedge are confined within the cavity of the guide rail.

[0013] Furthermore, a compression spring is provided between the bottom boss and the guide rail, and the compression spring is fitted onto the limiting post.

[0014] Furthermore, a first roller group and a second roller group are respectively provided at both ends of the water tank. The first roller group includes two first rollers arranged side by side and a first support leg connecting the first rollers and the water tank. The second roller group includes two second rollers arranged side by side and a second support leg connecting the second rollers and the water tank.

[0015] Furthermore, the guide rail is inclined on the mounting bracket and the length of the second leg is greater than the length of the first leg. After the first roller is limited by the limiting post, the top surface of the water tank is in a horizontal state.

[0016] The beneficial effects of this utility model are as follows: 1. By designing a limiting structure formed by components such as wedges, limiting posts, and positioning blocks, the water tank is limited by limiting the rollers. When limiting the water tank, it can ensure that the battery transfer equipment places the thermal runaway battery above the water tank. When the limiting posts no longer limit the water tank, the water tank can be removed from the mounting frame for easy subsequent processing. 2. The wedges can be driven by either electronic or mechanical means. When using mechanical means, the limiting of the rollers is released under external force, and the limiting is re-established under the action of the spring, resulting in high reliability and good stability. 3. The guide rail is tilted. After the limiting of the water tank is released, the water tank moves downward under gravity and slides out of the mounting frame. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the fire water tank limiting component of this utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure after removing the water tank;

[0019] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the wedge drive assembly in the fire water tank limiting assembly of this utility model.

[0021] In the attached diagram, 1. Water tank, 2. Mounting bracket, 2-1. Guide hole, 3. First roller, 4. Second roller, 5. First support leg, 6. Second support leg, 7. Guide rail, 7-1. Limiting hole, 8. Limiting block, 9. Limiting post, 9-1. Bottom boss, 9-2. Guide slope, 9-3. Limiting slope, 10. Wedge, 11. Drive rod, 12. Drive plate, 13. Return spring, 14. Slide rod, 15. Positioning nut, 16. Compression spring. Detailed Implementation

[0022] See appendix Figure 1-4This utility model provides a fire water tank limiting assembly for limiting the first roller 3 at the bottom of the water tank 1 onto a guide rail 7 that matches the first roller 3. The guide rail 7 is fixed to a mounting bracket 2. The fire water tank limiting assembly includes a limiting block 8 fixed to the top of the guide rail 7 and limiting one side of the first roller 3; a limiting post 9 for limiting the other side of the first roller 3; a wedge 10 that drives the top of the limiting post 9 upward through a limiting hole 7-1 in the guide rail 7 and limiting the other side of the first roller 3, or drives the top of the limiting post 9 downward into the limiting hole 7-1; and a matching wedge drive assembly. The inclined surface on the wedge 10 and the reciprocating movement of the wedge 10 along the guide rail 7 drive the limiting post 9, thereby limiting or de-limiting one side of the first roller 3. When the limit is applied, it facilitates the battery transfer equipment to accurately place the thermal runaway battery in the component above the water tank 1. When it is necessary to remove the water tank 1 containing the thermal runaway battery from the mounting bracket 2, the first roller 3 is no longer limited.

[0023] A limiting inclined surface 9-3 is provided at the top of the limiting post 9 to limit the first roller 3.

[0024] Example 1 of wedge drive assembly: In this embodiment, the wedge drive assembly can be a linear drive component connected to the wedge 10 and fixed on the guide rail 7, such as an electric push rod, a cylinder, etc.

[0025] Example 2 of wedge block drive assembly: See appendix Figure 2-4 In this embodiment, the release and reloading of the limit are achieved by a mechanical structure acting on the wedge 10 under external force. The wedge drive assembly includes a drive rod 11 connected to the wedge 10 and driven by external force, and a wedge reset assembly disposed between the drive rod 11 and the mounting bracket 2. The wedge reset assembly includes a drive plate 12 connected to the drive rod 11 and a reset spring 13 disposed between the drive plate 12 and the mounting bracket 2. The drive plate 12 and the limit block 8 are located on the same side of the first roller 3. Two slide rods 14 are provided between the drive plate 12 and the mounting bracket 2. The mounting bracket 2 is provided with guide holes 2-1 that match the slide rods 14. The reset spring 13 is fitted onto the slide rods 14. The inner side of the slide rod 14 is also threaded with a positioning nut 15 to limit the position between the drive plate 12 and the mounting bracket 2, preventing the slide rod 14 from dislodging from the mounting bracket 2 under the action of the reset spring 13. The mechanical structure allows the wedge block 10 to move via the drive plate 12 and drive rod 11 under the action of external forces, such as the telescopic components in a battery transfer device. This causes the top of the limiting post 9 to move downward into the limiting hole 7-1, thereby releasing the limitation on one side of the first roller 3, so that the water tank 1 can be removed from the mounting bracket 2. The function of the return spring 13 causes the wedge block 10 to move via the drive plate 12 and drive rod 11 when the external force disappears, causing the limiting post 9 to move upward to the limiting position.

[0026] A bottom boss 9-1 is provided at the bottom of the limiting post 9, and a guide slope 9-2 that cooperates with the wedge block 10 is provided on the bottom boss 9-1. In this embodiment, the guide rail 7 is a square tube and its top is limited in the annular groove of the first roller 3. The bottom boss 9-1 and the wedge block 10 are both limited in the cavity of the guide rail 7. The square shape of the bottom boss 9-1 can prevent the limiting post 9 from rotating. A compression spring 16 is provided between the bottom boss 9-1 and the guide rail 7, and the compression spring 16 is fitted on the limiting post 9. Under the action of the compression spring 16, the bottom boss 9-1 is always in contact with the wedge block 10, ensuring that the limiting post 9 is driven by the wedge block 10. To facilitate the installation of the limiting post 9, mounting holes are also provided on the side of the guide rail 7.

[0027] A first roller group and a second roller group are respectively provided at both ends of the water tank 1. The first roller group includes two first rollers 3 arranged side by side and a first support leg 5 connecting the first rollers 3 and the water tank 1. The second roller group includes two second rollers 4 arranged side by side and a second support leg 6 connecting the second rollers 4 and the water tank 1. Two guide rails 7 are provided, which are respectively matched with the first rollers 3 and the second rollers 4 located on the same side of the water tank 1.

[0028] The guide rail 7 can be horizontally mounted on the mounting frame 2, or it can be inclined on the mounting frame 2 with the length of the second leg 6 greater than the length of the first leg 5. After the first roller 3 is limited by the limiting post 9, the top surface of the water tank 1 is horizontal. When the water tank 1 is no longer limited, it will move downward along the guide rail 7 under the action of gravity, thus automatically moving out of the mounting frame 2.

[0029] Taking the second embodiment of the wedge drive assembly as an example, the usage process of the assembly of this utility model is as follows: 1. In the initial state, the water tank 1 is located on the guide rail 7 of the mounting frame 2 and both first rollers 3 are limited by the limiting post 9 in the matching limiting assembly, so that the water tank 1 is in a horizontal state to facilitate receiving the thermal runaway battery; 2. When the thermal runaway battery is detected, the telescopic component in the battery transfer equipment (such as a battery swapping equipment, stacking equipment, etc. with lifting and telescopic components) will move the battery out of the mounting frame 2 and transfer it to the battery tray of the water tank 1. The lifting drive assembly on the water tank 1 drives the battery tray to move downward so that the tray and the battery are submerged in the water of the water tank for fire extinguishing; 3. After the battery transfer equipment places the battery on the battery tray, the height of the telescopic component is adjusted by the lifting component so that the driving end of the telescopic component simultaneously moves the driving plate 12 in the two sets of limiting components, thereby releasing the limiting post 9 from limiting one side of the first roller 3. Under the action of gravity, the water tank 1 with the thermal runaway battery moves obliquely downward along the guide rail 7 and moves out of the mounting frame 2.

[0030] Finally, it is necessary to note that the above content is only used to help understand the technical solution of the present invention and should not be construed as a limitation on the scope of protection of the present invention; any non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention are all within the scope of protection claimed by the present invention.

Claims

1. A fire-fighting water tank limiting assembly for limiting a first roller (3) at the bottom of a water tank (1) on a guide rail (7) matched with the first roller (3), characterized in that: The limiting block (8) is fixed on the top of the guide rail (7) and limits one side of the first roller (3), the limiting post (9) is used for limiting the other side of the first roller (3), the wedge block (10) drives the top of the limiting post (9) to pass through the limiting hole (7-1) of the guide rail (7) and limit the other side of the first roller (3) or drives the top of the limiting post (9) to move downwards into the limiting hole (7-1), and the wedge block driving assembly is matched.

2. The fire water tank containment assembly of claim 1, wherein: The wedge block driving assembly comprises a linear driving component connected with the wedge block (10).

3. The fire water tank containment assembly of claim 1, wherein: The guide rail (7) is fixed on the mounting frame (2), the wedge block driving assembly comprises a driving rod (11) connected with the wedge block (10) and driven by external force, and a wedge block resetting assembly arranged between the driving rod (11) and the mounting frame (2), the wedge block resetting assembly comprises a driving plate (12) connected with the driving rod (11) and a resetting spring (13) arranged between the driving plate (12) and the mounting frame (2), and the driving plate (12) and the limiting block (8) are located on the same side of the first roller (3).

4. The fire water tank containment assembly of claim 3, wherein: Two slide rods (14) are arranged between the driving plate (12) and the mounting frame (2), and a guide hole (2-1) matched with the slide rod (14) is arranged on the mounting frame (2), and the resetting spring (13) is sleeved on the slide rod (14).

5. The fire water tank containment assembly of claim 1, wherein: A limiting inclined surface (9-3) is arranged on the top of the limiting post (9).

6. The fire water tank containment assembly of claim 1, wherein: A bottom boss (9-1) is arranged on the bottom of the limiting post (9), and a guide inclined surface (9-2) matched with the wedge block (10) is arranged on the bottom boss (9-1).

7. The fire water tank containment assembly of claim 6, wherein: The guide rail (7) is a square tube and is limited on the top of the first roller (3) in the annular groove, and the bottom boss (9-1) and the wedge block (10) are limited in the cavity of the guide rail (7).

8. The fire water tank containment assembly of claim 6, wherein: A compression spring (16) is arranged between the bottom boss (9-1) and the guide rail (7), and the compression spring (16) is sleeved on the limiting post (9).

9. The fire water tank containment assembly of any one of claims 1-8, wherein: First roller groups and second roller groups are arranged at both ends of the water tank (1), the first roller group comprises two first rollers (3) arranged side by side and a first supporting leg (5) matched with the first roller (3) and the water tank (1), and the second roller group comprises two second rollers (4) arranged side by side and a second supporting leg (6) matched with the second roller (4) and the water tank (1).

10. The fire water tank containment assembly of claim 9, wherein: The guide rail (7) is arranged obliquely on the mounting frame (2), the length of the second supporting leg (6) is greater than the length of the first supporting leg (5), and the top surface of the water tank (1) is in a horizontal state after the first roller (3) is limited by the limiting post (9).

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