Novel magnetic control type breathable anti-explosion valve

Abstract

The utility model relates to the technical field of anti-explosion valves, in particular to a novel magnetic control type breathable anti-explosion valve which comprises a valve body installed on a sealing body, and a breathable assembly, a magnetic attraction assembly used for attracting the breathable assembly and an elastic assembly used for being connected with the breathable assembly are arranged at the two ends of the valve body respectively. According to the anti-explosion valve, the ventilation assembly connected through magnetic attraction is adopted, compared with the structural design of single-spring type reset, the ventilation stability of the anti-explosion valve in the normal working state can be further improved, the anti-explosion stability is optimized, the anti-explosion effect is improved, and the service life of the anti-explosion valve is prolonged. And secondly, the magnetic attraction part is connected and fixed through the fixing assembly, when the magnetic attraction part is damaged, the magnetic attraction part can be conveniently detached and replaced through the fixing assembly, the convenience of later maintenance of the magnetic attraction part is optimized, the arrangement structure design is simple, and the applicability of the anti-explosion valve in actual operation is further met.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof valves, in particular to a novel magnetically controlled breathable explosion-proof valve. Background Art

[0002] Explosion-proof valves are usually used as pressure relief devices for explosive pipelines or equipment. For example, in the field of new energy batteries, since the internal pressure of the battery pack may be too high during use, which may even cause safety problems such as explosion, it is necessary to relieve pressure through an explosion-proof valve.

[0003] As customers continuously reduce the opening pressure of metal explosion-proof valves and raise the requirements for the protection level, in addition to the strict requirements for the application of explosion-proof breathable valves by the client side, the protection performance also needs to be improved. Originally, a customized spring with a fixed force value was used to press the sealing ring in the free state to play a protective role. Facing complex operating conditions, it is difficult to meet the stable opening pressure and protection level due to the change of the spring force value and the unbalanced free pressing of the sealing ring.

[0004] When the opening pressure of the explosion-proof valve is unstable, it will lead to the failure of the protection level and water leakage. Based on this, in order to further improve the applicability of the existing explosion-proof valve, we propose a novel magnetically controlled breathable explosion-proof valve. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the above-mentioned disadvantages in the prior art and propose a novel magnetically controlled breathable explosion-proof valve.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] Design a novel magnetically controlled breathable explosion-proof valve, which includes a valve body installed on a sealing body, and a breathable component, a magnetic attraction component for attracting the breathable component, and an elastic component for connecting the breathable component are respectively arranged at both ends of the valve body;

[0008] Among them, the magnetic attraction component includes a plurality of magnetic attraction parts distributed on the valve body, an iron ring is connected to the breathable component, and the magnetic attraction parts are opposite to the iron ring and magnetically adsorbed;

[0009] A plurality of placement holes are opened on the end face of the valve body, and a fixing component for fixing the magnetic attraction parts is arranged inside the placement holes.

[0010] Furthermore, the magnetic attraction part is an annular magnet, and an elastic pad is placed inside the placement hole, and the elastic pad contacts the magnetic attraction part.

[0011] Further, the fixing component includes a fixing column fixed inside the placement hole. The fixing column passes through the inner hole of the magnetic attraction member. Wherein, two clamping claws are fixedly installed at the top of the fixing column, and the clamping claws are clamped above the magnetic attraction member.

[0012] Further, the upper end of the magnetic attraction member has a first stepped position, and the bent end of the clamping claw is clamped in the stepped position.

[0013] Further, the air permeable component includes a fixing seat, a membrane paper, a stainless iron and a cover plate installed on the fixing seat. The iron ring is embedded on the outer side of the fixing seat.

[0014] Further, the elastic component includes a guiding column inserted into the valve body. A spring is arranged between the guiding column and the valve body. Wherein, the guiding column is threadedly connected to the bottom of the fixing seat.

[0015] Further, a first sealing ring is sleeved on the outer side of the bottom of the fixing seat, and a second sealing ring is fitted in the bottom groove of the valve body. Wherein, an inclined surface matched with the first sealing ring is arranged at the top of the valve body.

[0016] A novel magnetically controlled air permeable explosion-proof valve proposed by the present utility model has the beneficial effects that: in the present utility model, by adopting a magnetically connected air permeable component, compared with the structural design of single spring type reset, the air permeable stability in the normal working state can be further improved, and the explosion-proof stability is optimized. In addition, the valve body adopts an inclined surface to cooperate with the first sealing ring inside to improve and strengthen the sealing, waterproof and leak-proof effects. Secondly, the magnetic attraction member is connected and fixed by a fixing component. When the magnetic attraction member is damaged, the magnetic attraction member can be conveniently removed and replaced through the fixing component to optimize the convenience of its later maintenance. The overall structural design is simple, further meeting the applicability of the explosion-proof valve in actual operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the explosion structure schematic diagram of the present utility model;

[0018] Figure 2 is the normal working condition structure schematic diagram of the present utility model;

[0019] Figure 3 is the pressure relief state structure schematic diagram of the present utility model;

[0020] Figure 4 is the structure schematic diagram of the valve body of the present utility model installed in the sealing body.

[0021] In the figure: 1. Valve body; 11. Placing hole; 12. Fixing component; 13. Second sealing ring; 14. Inclined surface; 121. Fixing column; 122. Claw; 13. Elastic pad; 14. Inclined surface; 15. Second sealing ring; 2. Air permeable component; 21. Fixing seat; 22. Membrane paper; 23. Martensite; 24. Cover plate; 3. Magnetic attraction component; 31. Magnetic attraction part; 311. Step position; 32. Iron ring; 33. First sealing ring; 4. Elastic component; 41. Guide post; 42. Spring; 5. Sealing body. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Refer to Figures 1-4 For an embodiment of the present invention, it discloses a new type of magnetically controlled air permeable explosion-proof valve. Specifically, the explosion-proof valve includes a valve body 1 installed on a sealing body 5. In this embodiment, the sealing body 5 takes a battery pack as an example. Specifically, an air permeable component 2, a magnetic attraction component 3 for attracting the air permeable component 2, and an elastic component 4 for connecting the air permeable component 2 are respectively arranged at both ends of the valve body 1;

[0024] Among them, the magnetic attraction component 3 includes a plurality of magnetic attraction parts 31 distributed on the valve body 1. The magnetic attraction parts 31 are distributed in a ring structure. An iron ring 32 is connected to the air permeable component 2, and the magnetic attraction parts 31 are opposite to the iron ring 32 and magnetically adsorbed;

[0025] A plurality of placing holes 11 are formed in the end face of the valve body 1, and a fixing component 12 for fixing the magnetic attraction parts 31 is arranged inside the placing holes 11.

[0026] In some embodiments, the magnetic attraction part 31 in the present invention is a ring-shaped magnet, that is, a through hole is formed in the middle of the magnetic attraction part 31. An elastic pad 13 is placed inside the placing hole 11, and the elastic pad 13 contacts the magnetic attraction part 31. It should be noted that in this embodiment, the elastic pad 13 is set as a rubber pad, and its design purpose is to improve the fixing stability of the magnetic attraction part 31.

[0027] On the basis of the above embodiment, in this embodiment, the fixing component 12 includes a fixing column 121 fixed inside the placing hole 11. The fixing column 121 passes through the inner hole of the magnetic attraction part 31. Among them, two claws 122 are fixedly installed at the top of the fixing column 121, and the claws 122 are clamped above the magnetic attraction part 31.

[0028] Furthermore, in this embodiment, the upper end of the magnetic attraction member 31 has a first step position 311, and the bent end of the claw 122 is clamped in the step position 311.

[0029] That is to say, when specifically installing the magnetic attraction member 31, align it with the fixed column 121 and insert it, and then push it inward so that the upper step position 311 of the magnetic attraction member 31 is clamped with the claw 122. During this process, the above-mentioned elastic pad 13 is squeezed and deformed to store energy. After the clamping is completed, the installation of the magnetic attraction member 31 can be realized. When the magnetic attraction member 31 is damaged, such as due to high temperature inside the battery pack or after being violently impacted, the magnetic force of the magnetic attraction member 31 will weaken. At this time, tools such as tweezers can be used to clamp the two claws 122 to make them deform inward until they are separated from the step position 311. The reset and rebound of the elastic pad 13 can drive the magnetic attraction member 31 to move upward a small distance, so as to facilitate the removal and replacement of the separated magnetic attraction member 31, and the operation is simple and convenient.

[0030] In some embodiments, the air permeable component 2 of the present utility model includes a fixed seat 21, and a membrane paper 22, a stainless iron 23 and a cover plate 24 installed on the fixed seat 21. The iron ring 32 is embedded on the outer side of the fixed seat 21. The membrane paper 22 is an e-PTFE membrane paper, wherein the stainless iron 23 and the cover plate 24 are both pressed inside the fixed seat 21, and the stainless iron 23 is used to abut against the membrane paper 22.

[0031] In addition, the elastic component 4 includes a guide post 41 inserted into the valve body 1, and a spring 42 is arranged between the guide post 41 and the valve body 1, wherein the guide post 41 is threadedly connected to the bottom of the fixed seat 21.

[0032] It should be noted that a first sealing ring 33 is sleeved on the outer side of the bottom of the fixed seat 21 in this embodiment, and a second sealing ring 15 is fitted in the bottom groove of the valve body 1. Among them, a slope 14 matching the first sealing ring 33 is arranged at the top of the valve body 1. Specifically, in this embodiment, both the first sealing ring 33 and the second sealing ring 15 are set as O-shaped sealing rings, that is, in this embodiment, the valve body 1 uses the slope 14 to cooperate with the inner first sealing ring 33, which improves and strengthens the sealing, waterproof and leak-proof effects.

[0033] When specifically assembling this explosion-proof valve, the following process is adopted:

[0034] Step 1, fix the stainless iron 23 and the cover plate 24 together by interference stamping to form a first component;

[0035] Step 2, fix the membrane paper 22 and the fixed seat 21 together by back gluing to form a second component;

[0036] Step 3: Fix the first component, the second component, and the iron ring 32 together by interference stamping to form the third component;

[0037] Step 4: Assemble and fix the first sealing ring 33 to the third component by groove assembly to form the fourth component;

[0038] Step 5: Install the magnetic components 31 evenly. The second sealing ring is fixed to the valve body 1 by groove assembly respectively to form the fifth component;

[0039] Step 6: Pass the guide post 41 and the spring 42 through the fifth component and fix them to the fourth component by threading to form the finished product.

[0040] Specifically, in the normal working condition, the magnet distributed in a ring shape and the ring-shaped iron ring 32 attract and close each other, playing a role in dust and water prevention. The internal and external gases flow through the membrane paper e-PTFE to achieve the pressure balance inside and outside the sealed cavity;

[0041] In the pressure relief state, when the internal air pressure is greater than or equal to the opening pressure set by the explosion-proof valve, the fixed seat 21 is pushed open, and the magnet distributed in a ring shape is separated from the ring-shaped iron ring 32, and the internal gas flows outwards to achieve rapid pressure relief.

[0042] In summary, in the present utility model, by adopting the air-permeable component 2 connected by magnetic attraction, compared with the structural design of a single spring type for reset, the air-permeable stability in the normal working state can be further improved, and the explosion-proof stability is optimized. Secondly, the magnetic component 31 is connected and fixed by the fixing component 12. When the magnetic component 31 is damaged, the magnetic component 31 can be conveniently removed and replaced through the fixing component 12 to optimize the convenience of its later maintenance.

[0043] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A novel magnetically controlled gas-permeable explosion-proof valve, comprising a valve body (1) mounted on a sealing body (5), characterized in that: A permeable component (2), a magnetic component (3) for attracting the permeable component (2), and an elastic component (4) for connecting the permeable component (2) are respectively arranged at both ends of the valve body (1); The magnetic attraction component (3) comprises a plurality of magnetic attraction parts (31) distributed on the valve body (1), an iron ring (32) is connected to the air permeable component (2), and the magnetic attraction parts (31) are opposite to the iron ring (32) and are magnetically attracted; A plurality of placement holes (11) are provided on the end surface of the valve body (1), and a fixing component (12) for fixing the magnetic attraction component (31) is provided inside the placement hole (11).

2. According to claim 1, the novel magnetically controlled air-permeable explosion-proof valve is characterized in that: The magnetic attraction member (31) is an annular magnet, and an elastic pad (13) is placed inside the placement hole (11), and the elastic pad (13) is in contact with the magnetic attraction member (31).

3. According to claim 2, the novel magnetically controlled air-permeable explosion-proof valve is characterized in that: The fixing assembly (12) comprises a fixing column (121) fixed inside the placement hole (11), the fixing column (121) being inserted into the inner hole of the magnetic attraction component (31), wherein two claws (122) are fixedly mounted on the top of the fixing column (121), and the claws (122) are clamped on the top of the magnetic attraction component (31).

4. According to claim 3, the novel magnetically controlled air-permeable explosion-proof valve is characterized in that: The upper end of the magnetic attraction member (31) has a step position (311), and the bent end of the clamping claw (122) is clamped in the step position (311).

5. According to claim 1, the novel magnetically controlled air-permeable explosion-proof valve is characterized in that: The air permeable component (2) comprises a fixing seat (21), and a membrane paper (22), stainless steel (23), and a cover plate (24) mounted on the fixing seat (21); the iron ring (32) is embedded on the outside of the fixing seat (21).

6. The novel magnetically controlled air-permeable explosion-proof valve according to claim 5 is characterized in that: The elastic component (4) comprises a guide column (41) plugged into the valve body (1), a spring (42) being arranged between the guide column (41) and the valve body (1), wherein the guide column (41) is threadedly connected to the bottom of the fixing seat (21).

7. The novel magnetically controlled air-permeable explosion-proof valve according to claim 5 is characterized in that: A first sealing ring (33) is sleeved on the outer side of the bottom of the fixing seat (21), and a second sealing ring (15) is matched with the bottom groove of the valve body (1), wherein an inclined surface (14) matching with the first sealing ring (33) is provided on the top of the valve body (1).

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