Safety group valve of colloid lead-acid storage battery

Abstract

The utility model relates to the technical field of colloid lead-acid storage batteries, in particular to a colloid lead-acid storage battery safety group valve which comprises a battery middle cover body and an exhaust device, the inner wall of the battery middle cover body is in threaded connection with a valve body, and the exhaust device is arranged on the surface of the valve body and comprises a hollow sleeve fixedly connected with the inner wall of the valve body. The inner wall of the hollow sleeve is connected with a sealing piece in a sliding mode, one side, corresponding to the inner wall of the hollow sleeve, of the sealing piece is fixedly connected with a spring, and the inner wall of the valve body is provided with an exhaust channel. According to the invention, the gas can be exhausted more quickly, the phenomenon that the battery is damaged due to overlarge internal pressure is reduced, and even if the exhaust part in a certain direction is blocked by impurities and dirt, the gas can still be smoothly exhausted from other unblocked paths, so that the overall flexibility is improved.

Description

Technical Field

[0001] This utility model relates to the field of gel lead-acid battery technology, and in particular to a safety valve for gel lead-acid batteries. Background Technology

[0002] Gel lead-acid batteries are an improvement over ordinary lead-acid batteries with liquid electrolytes. They use gel electrolytes instead of sulfuric acid electrolytes, resulting in improvements in safety, storage capacity, discharge performance, and lifespan compared to ordinary batteries.

[0003] During the charging and discharging process of a battery, gases such as hydrogen and oxygen are generated inside, causing the pressure to rise. The safety valve can automatically open when the internal pressure of the battery reaches a certain value to release the gas, preventing the battery from bulging, deforming or even rupturing due to excessive internal pressure, thus protecting the integrity and safety of the battery.

[0004] In daily work, it has been found that when existing colloidal lead-acid battery safety valves are in use, most of them adopt a single-hole or double-hole venting design. Due to the limited number of venting holes, gas can only be discharged from one or two specific channels, which greatly limits the venting rate, resulting in low venting efficiency and causing a sharp increase in local pressure. Once the single or double hole is blocked by impurities and cannot vent smoothly, the entire venting channel will be blocked, which can easily lead to safety accidents. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing safety valves, which often employ single or double-hole exhaust designs, affecting exhaust efficiency and making it difficult to exhaust once blocked. Therefore, this invention proposes a safety valve for gel lead-acid batteries.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a safety valve for a colloidal lead-acid battery, comprising a battery cover and an exhaust device. A valve body is threadedly connected to the inner wall of the battery cover. The exhaust device is disposed on the surface of the valve body and includes a hollow sleeve fixedly connected to the inner wall of the valve body. A sealing element is slidably connected to the inner wall of the hollow sleeve. A spring is fixedly connected to the side of the sealing element corresponding to the inner wall of the hollow sleeve. An exhaust channel is provided on the inner wall of the valve body. A circular ring is fixedly connected to the surface of the valve body. A cavity is formed on the surface of the circular ring, which communicates with the exhaust channel. Multiple equally spaced exhaust holes are formed on the surface of the circular ring, which communicate with the inner wall of the cavity. A protective component is provided on the surface of the circular ring. Through these components, during exhaust, the gas pushes the sealing element, the spring is stressed, and after the sealing element moves to a certain position, it loses its sealing function. The gas enters the cavity through the exhaust channel and exits from the multiple exhaust holes on the surface of the circular ring, allowing for exhaust from multiple directions, improving exhaust efficiency and reducing the phenomenon of existing single-exhaust safety valves becoming unusable due to blockage.

[0007] Preferably, the protective component includes a connecting cover, which is threadedly connected to the inner wall of the inner ring of the ring component. A filter element is fixedly connected to the surface of the connecting cover. Through the above components, after the connecting cover is threadedly connected to the inner ring of the ring component, the filter element and the connecting cover can protect the ring component and reduce the phenomenon of blockage.

[0008] Preferably, a gasket is fixedly connected to the side of the filter element near the valve body. Through the above-mentioned components, when the connecting cover is threadedly connected to the inner ring of the circular component, the filter element can drive the gasket to fit against the surface of the valve body, thereby improving the protection effect.

[0009] Preferably, a second gasket is fitted on the surface of the valve body. The second gasket is located between the valve body and the battery cover. Through the above-mentioned components, after the valve body is connected to the battery cover, the valve body can drive the second gasket to fit against the battery cover, thereby improving the sealing effect.

[0010] Preferably, a strip block is fixedly connected to the inner wall of the valve body, and a support rod is fixedly connected to the surface of the strip block. Through the above components, when the spring drives the sealing element to reset and seal, the strip block and the support rod can support the sealing element.

[0011] Preferably, the surface of the valve body is provided with a stabilizing device, which includes two concave seats fixedly connected to the surface of the valve body. The inner wall of the concave seats is slidably connected with an insert block. The surface of the battery cover is provided with a slot, and the insert block is inserted into the inner wall of the slot. Through the above components, when the valve body and the battery cover are installed and connected, the insert block in the concave seat can be pushed into the slot on the surface of the battery cover to achieve positioning and reduce the problem of loose connection affecting use.

[0012] Preferably, the surface of the insert block is fixedly connected with a protrusion. Through the above-mentioned components, the protrusion facilitates the movement of the insert block during use, thereby improving ease of use.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting an exhaust device, multi-directional and multi-hole exhaust can be realized, which can greatly improve the exhaust efficiency. When the internal pressure of the battery increases, the gas can be discharged more quickly, reducing the phenomenon of battery damage due to excessive internal pressure. Even if the exhaust port in a certain direction is blocked by impurities or dirt, the gas can still be discharged smoothly through other unblocked paths, improving the overall flexibility.

[0015] 2. In this utility model, by setting a stabilizing device, the concave seat, insert block and slot can cooperate with each other after the valve body is installed to limit the valve body after installation, thereby improving the overall stability. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a safety valve for a colloidal lead-acid battery is provided for this utility model.

[0017] Figure 2 This utility model proposes a safety valve for colloidal lead-acid batteries. Figure 1 Schematic diagram of the structure at point A in the middle;

[0018] Figure 3 This utility model provides a cross-sectional structural schematic diagram of a safety valve for a colloidal lead-acid battery.

[0019] Figure 4 This utility model provides a partial cross-sectional view of a safety valve for a colloidal lead-acid battery.

[0020] Figure 5 This invention provides an exploded structural diagram of a safety valve for a colloidal lead-acid battery.

[0021] Legend:

[0022] 1. Battery cover; 2. Valve body; 3. Exhaust device; 31. Seal; 32. Hollow sleeve; 33. Spring; 34. Strip block; 35. Support rod; 36. Exhaust channel; 37. Ring part; 38. Protective component; 381. Connecting cover; 382. Filter; 383. Gasket 1; 39. Gasket 2; 310. Exhaust hole; 311. Cavity; 4. Stabilizing device; 41. Concave seat; 42. Insert block; 43. Protrusion; 44. Slot. Detailed Implementation

[0023] Please see Figures 1-5 This utility model provides a technical solution: a safety valve for a colloidal lead-acid battery, including a battery cover 1 and an exhaust device 3. The inner wall of the battery cover 1 is threadedly connected to a valve body 2, and the exhaust device 3 is disposed on the surface of the valve body 2.

[0024] Specifically, the exhaust device 3 includes a hollow sleeve 32 fixedly connected to the inner wall of the valve body 2. A sealing element 31 is slidably connected to the inner wall of the hollow sleeve 32. A spring 33 is fixedly connected to the side of the sealing element 31 corresponding to the inner wall of the hollow sleeve 32. An exhaust channel 36 is opened on the inner wall of the valve body 2. A ring 37 is fixedly connected to the surface of the valve body 2. A cavity 311 is opened on the surface of the ring 37. The cavity 311 is connected to the exhaust channel 36. A plurality of equally spaced exhaust holes 310 are opened on the surface of the ring 37. The exhaust holes 310 are connected to the inner wall of the cavity 311. A protective component 38 is provided on the surface of the ring 37.

[0025] In this implementation scheme: when venting, the gas pushes the seal 31, the spring 33 is stressed, and after the seal 31 moves to a certain position, it loses its sealing function. The gas enters the cavity 311 through the venting channel 36 and is discharged from multiple venting holes 310 on the surface of the ring 37. It can be discharged from multiple directions, which improves the venting efficiency and reduces the phenomenon that the existing single-venting safety valve cannot be used after it is blocked.

[0026] Specifically, the protective component 38 includes a connecting cover 381, which is threadedly connected to the inner wall of the inner ring of the annular component 37, and a filter element 382 is fixedly connected to the surface of the connecting cover 381.

[0027] In this implementation scheme: after the connecting cover 381 is threadedly connected to the inner ring of the annular component 37, the filter element 382 and the connecting cover 381 can protect the annular component 37 and reduce clogging.

[0028] Specifically, a gasket 383 is fixedly connected to the side of the filter element 382 near the valve body 2. When the connecting cover 381 is threadedly connected to the inner ring of the ring 37, the filter element 382 can drive the gasket 383 to fit against the surface of the valve body 2, thereby improving the protection effect.

[0029] Specifically, a gasket 39 is fitted onto the surface of the valve body 2, and the gasket 39 is positioned between the valve body 2 and the battery cover 1.

[0030] In this implementation scheme: after the valve body 2 is connected to the battery cover 1, the valve body 2 can drive the gasket 39 to fit with the battery cover 1, thereby improving the sealing effect.

[0031] Specifically, a strip block 34 is fixedly connected to the inner wall of the valve body 2, and a support rod 35 is fixedly connected to the surface of the strip block 34. When the spring 33 drives the sealing element 31 to reset and seal, the strip block 34 and the support rod 35 can support the sealing element 31.

[0032] Specifically, a stabilizing device 4 is provided on the surface of the valve body 2. The stabilizing device 4 includes two concave seats 41 that are fixedly connected to the surface of the valve body 2. An insert 42 is slidably connected to the inner wall of the concave seat 41. A slot 44 is opened on the surface of the battery cover 1. The insert 42 is inserted into the inner wall of the slot 44.

[0033] In this implementation plan: When in use, after the valve body 2 is installed and connected to the battery cover 1, the insert 42 in the concave seat 41 can be pushed into the slot 44 on the surface of the battery cover 1 to achieve positioning and reduce the problem of loose connection affecting use.

[0034] Specifically, a protrusion 43 is fixedly connected to the surface of the insert 42. When in use, the protrusion 43 facilitates the movement of the insert 42, improving ease of use.

[0035] Working principle: First, the valve body 2 can be installed with the battery cover 1. After installation, the valve body 2 drives the gasket 39 to fit against the battery cover 1. Then, through the protrusion 43 in the concave seat 41, the insert 42 is pushed into the slot 44 on the surface of the battery cover 1 to achieve a limit. After the connecting cover 381 is connected to the inner ring of the ring 37 by threads, the filter element 382 and the connecting cover 381 can protect the ring 37. At the same time, the filter element 382 can drive the gasket 383 to fit against the valve body 1. When the body 2 is in contact with the surface, the gas pressure will squeeze the seal 31 during exhaust. The seal 31 moves in the hollow sleeve 32, and the spring 33 is under force. After the seal 31 moves to a certain position, the gas enters the cavity 311 of the ring 37 through the exhaust channel 36 and is discharged through multiple exhaust holes 310 on the surface of the ring 37, which can be discharged from multiple directions, improving exhaust efficiency. When the gas pressure is normal, the spring 33 drives the seal 31 to reset. The strip block 34 and the support rod 35 can be used for support and positioning.

Claims

1. A safety valve for a gel lead-acid battery, comprising a battery cover (1) and a venting device (3), characterized in that: The inner wall of the cover (1) of the battery is threaded with a valve body (2). The exhaust device (3) is disposed on the surface of the valve body (2). The exhaust device (3) includes a hollow sleeve (32) fixedly connected to the inner wall of the valve body (2). A sealing element (31) is slidably connected to the inner wall of the hollow sleeve (32). A spring (33) is fixedly connected to the side of the sealing element (31) corresponding to the inner wall of the hollow sleeve (32). An exhaust channel (36) is opened on the inner wall of the valve body (2). A ring (37) is fixedly connected to the surface of the valve body (2). A cavity (311) is opened on the surface of the ring (37). The cavity (311) is connected to the exhaust channel (36). A plurality of equally spaced exhaust holes (310) are opened on the surface of the ring (37). The exhaust holes (310) are connected to the inner wall of the cavity (311). A protective component (38) is disposed on the surface of the ring (37).

2. The safety valve for a gel lead-acid battery according to claim 1, characterized in that: The protective component (38) includes a connecting cover (381), which is threaded to the inner wall of the inner ring of the annular component (37), and a filter element (382) is fixedly connected to the surface of the connecting cover (381).

3. The safety valve for a colloidal lead-acid battery according to claim 2, characterized in that: The filter element (382) is fixedly connected to a gasket (383) on the side near the valve body (2).

4. The safety valve for a gel lead-acid battery according to claim 1, characterized in that: Gasket 2 (39) is fitted on the surface of the valve body (2), and gasket 2 (39) is located between the valve body (2) and the battery cover (1).

5. A safety valve for a gel lead-acid battery according to claim 1, characterized in that: A strip block (34) is fixedly connected to the inner wall of the valve body (2), and a support rod (35) is fixedly connected to the surface of the strip block (34).

6. A safety valve for a colloidal lead-acid battery according to claim 1, characterized in that: The surface of the valve body (2) is provided with a stabilizing device (4). The stabilizing device (4) includes two concave seats (41) fixedly connected to the surface of the valve body (2). The inner wall of the concave seat (41) is slidably connected with a plug (42). The surface of the battery cover (1) is provided with a slot (44). The plug (42) is inserted into the inner wall of the slot (44).

7. A safety valve for a gel lead-acid battery according to claim 6, characterized in that: The surface of the insert (42) is fixedly connected with a protrusion (43).

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