A needle assembly, explosion relief valve and sealing system

Abstract

The application discloses a top pin assembly, an explosion-proof valve and a sealing system. The top pin assembly comprises a positioning part arranged on a first side of the top pin assembly and used for being fixed relative to a valve body, a deformation part arranged on a second side of the top pin assembly and used for abutting or approaching a film material and capable of being deformed relative to the positioning part, and a top pin arranged on a side edge or inside of the deformation part, wherein when the deformation part is deformed in a first direction away from the film material, the top pin is interfered by the deformation of the deformation part and moves in a second direction close to the film material. The top pin assembly, the explosion-proof valve and the sealing system can make the film material and the top pin move towards each other at the same time, the puncture force of the top pin on the film material is larger under the same pressure difference, the film material can be quickly broken, and the success rate of the film material breaking is higher.

Description

Technical Field

[0001] This application relates to the field of explosion-proof device technology, and in particular to a pin assembly, an explosion-proof valve and a sealing system. Background Technology

[0002] Mechanically sealed enclosures typically house batteries or other power sources. Due to their sealed structure, they are prone to explosions or bursts in case of accidents, resulting in personal injury and property damage, posing a significant safety risk to users.

[0003] The traditional pin-type explosion-proof valve is primarily used for high-pressure explosion protection. However, as customer requirements for the performance of this type of valve become increasingly stringent, the traditional pin-type explosion-proof valve works by using a static pin to puncture the e-PTFE membrane material that expands under high pressure. This type of valve requires the membrane material to move to the pin under high pressure so that the pin can puncture the membrane material in order to achieve the explosion-proof effect. If the pressure is not high enough, the pin will only puncture the membrane material but will not effectively burst it.

[0004] Furthermore, the relative air pressure flow generated by vibration during daily use can easily puncture the expanding e-PTFE membrane material without causing it to burst, posing a risk of membrane material failure. When the air pressure is below 10 kPa or even lower, the membrane material cannot effectively burst. If the ambient temperature in the sealed chamber of mechanical equipment continues to rise and the pressure difference between the inside and outside is too large to achieve rapid bursting of the membrane material, it may cause circuit alarm failure or even lead to fire and explosion of the sealed cavity. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this application provides a pin assembly, an explosion-proof valve, and a sealing system. The pin assembly can improve the success rate of pin bursting the membrane material, thereby improving the reliability of the sealing system.

[0006] This application provides the following technical solution:

[0007] In a first aspect, this application provides a pin assembly for use in an explosion-proof valve, the explosion-proof valve including a valve body and a waterproof and breathable membrane material mounted on the valve body, the pin assembly comprising:

[0008] A positioning part is provided on the first side of the ejector pin assembly and is used to fix it relative to the valve body;

[0009] A deformable portion, disposed on the second side of the ejector pin assembly, is used to abut or approach the membrane material and is capable of relative deformation with respect to the positioning portion; and

[0010] A push pin is provided on the side or inside of the deformed part;

[0011] When the deformable part deforms in a first direction away from the membrane material, the ejector pin is interfered with by the deformation of the deformable part and moves in a second direction closer to the membrane material.

[0012] In one embodiment, the ejector pin includes a main body and connecting ends and a needle end respectively disposed at both ends of the main body. The connecting ends are connected to the deformation part or the positioning part, and the middle part of the main body is provided with a bending part for support.

[0013] In one embodiment, a plurality of flexible support legs capable of being deformed under force are provided between the deformable part and the positioning part.

[0014] In one embodiment, the middle portion of the deformable portion is raised relative to the membrane material, and the ejector pin is disposed around the raised portion of the deformable portion.

[0015] Secondly, this application also discloses an explosion-proof valve, comprising:

[0016] The valve body has a pressure relief passage for depressurization;

[0017] A support member is connected to the valve body and is disposed on the pressure relief channel;

[0018] A membrane material, installed on the valve body, serves to provide waterproofing and breathability; and

[0019] A pin assembly is disposed between the support member and the membrane material, including a positioning part, a deformation part and a pin, wherein the positioning part is fixed relative to the support member;

[0020] The ejector pin assembly is any of the ejector pin assemblies described above.

[0021] In one embodiment, the support member is provided with a mounting portion, which is located at the axial center of the valve body;

[0022] The positioning part and the mounting part are connected and fixed.

[0023] In one embodiment, the ejector pin includes a main body and connecting ends and a needle end respectively disposed at both ends of the main body, the connecting ends being connected to the deformable part, and the middle part of the main body having a bent part for support;

[0024] The mounting part includes an abutment groove, and the bent part abuts against the abutment groove.

[0025] In one embodiment, the explosion-proof valve further includes:

[0026] A protective cover is provided on the valve body to cover the pressure relief channel;

[0027] The protective cover is detachably connected to the valve body and has an air exchange gap connecting the pressure relief channel to the outside.

[0028] In one embodiment, the explosion-proof valve further includes:

[0029] A clamping member is used to press the membrane material against the valve body and the clamping member, and the clamping member and the valve body are detachably connected.

[0030] Thirdly, this application also discloses a device sealing system, the device sealing system comprising:

[0031] Shell structure; and

[0032] An explosion-proof valve is disposed on the housing structure, and the explosion-proof valve is any one of the explosion-proof valves described above.

[0033] As can be seen from the above, the ejector pin assembly, explosion-proof valve, and sealing system provided in this application utilize the deformable characteristic between the deformable part and the positioning part. When the deformable part is pushed by the membrane material, the ejector pin can move towards the membrane material and actively puncture or scratch it due to the deformation interference of the deformable part. The ejector pin assembly of this application enables the membrane material and the ejector pin to move towards each other simultaneously. Under the same pressure difference, the ejector pin has a greater puncturing force on the membrane material, enabling the membrane material to burst quickly and achieving a higher success rate of membrane material bursting. Attached Figure Description

[0034] Figure 1 This is a cross-sectional structural diagram of the ejector pin assembly provided in an embodiment of this application.

[0035] Figure 2 This is a first-view structural diagram of the ejector pin assembly provided in an embodiment of this application.

[0036] Figure 3 This is a second-view structural diagram of the ejector pin assembly provided in an embodiment of this application.

[0037] Figure 4 This is another structural schematic diagram of the ejector pin assembly provided in an embodiment of this application.

[0038] Figure 5 This is a schematic diagram of the explosion-proof valve provided in the embodiments of this application.

[0039] Figure 6 This is an enlarged schematic diagram of the mounting section of the explosion-proof valve provided in an embodiment of this application.

[0040] Figure 7 This is a schematic diagram of the first state cross-sectional structure of the explosion-proof valve provided in the embodiment of this application.

[0041] Figure 8This is a schematic diagram of the second state cross-sectional structure of the explosion-proof valve provided in the embodiment of this application.

[0042] Figure 9 This is a schematic diagram of the sealing system provided in an embodiment of this application. Detailed Implementation

[0043] To facilitate understanding of this application, a more comprehensive description will be provided below with reference to the accompanying drawings and specific embodiments. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0044] Please refer to Figure 1 , Figure 1 The cross-sectional structure of the ejector pin assembly provided in the embodiment of this application is shown in the figure.

[0045] like Figure 1 As shown, this ejector pin assembly is used in an explosion-proof valve, which includes a valve body 4 and a waterproof and breathable membrane 5 mounted on the valve body 4. The explosion-proof valve is equipped with the membrane 5, and the valve body 4 has a pressure relief channel inside for pressure release. The membrane 5 is installed on the pressure relief channel of the valve body 4 so that when the explosion-proof valve is installed in a relatively sealed enclosure, the inner and outer sides of the valve body 4 form relatively independent spaces separated by the membrane 5, ensuring a relatively stable environment inside the sealed enclosure.

[0046] The membrane material 5 can be made of e-PTFE or other membrane materials that can achieve both waterproofing and breathability. The membrane material 5 is directly or indirectly connected to the valve body 4, and the specific installation method can be determined according to the actual situation.

[0047] The ejector pin assembly includes a positioning part 1, a deformation part 2, and an ejector pin 3. The positioning part 1 is located on the first side of the ejector pin assembly and is used for relative fixation with the valve body 4. The positioning part 1 can be directly or indirectly fixed to the valve body 4 by conventional fixing methods, such as using screws, clips, or detachable means, or it can be fixed by directly or indirectly integrally molding the positioning part 1 and the valve body 4. It is understood that the specific connection method between the positioning part 1 and the valve body 4 is not limited.

[0048] The deformable part 2 is located on the second side of the ejector pin assembly and is used to abut or approach the membrane material 5, and can undergo relative deformation with respect to the positioning part 1. Specifically, the deformable part 2 can be made of at least a portion of a soft material. When the pressure difference between the membrane material 5 inside and outside the sealing system is too large, the deformable part 2 can be squeezed, causing relative deformation between the deformable part 2 and the positioning part 1. The deformable part 2 and the positioning part 1 can be connected by a soft material, or they can both be integrally molded from a soft material, such as rubber.

[0049] like Figure 2-3 The figures show the first and second views of the pin 3 structure provided in the embodiments of this application.

[0050] Combination Figure 2-3 The front end of the deformable part 2 can be provided with a contact surface for contacting the membrane material 5. This not only improves the contact effect with the membrane material 5, allowing the movement of the membrane material 5 to be more effectively transmitted to the deformable part 2, but also avoids the risk of the ejector pin 3 accidentally puncturing the membrane material 5 due to vibration or other non-hazardous factors. Of course, the deformable part 2 can also simply approach the membrane material 5 without direct contact. The specific implementation method can be determined according to the actual situation.

[0051] The ejector pin 3 can be made of metal, hard plastic, or other hard materials to ensure sufficient structural strength to puncture the membrane material 5. The ejector pin 3 can be positioned on the side or inside the deformation section 2, and under normal conditions, the distance between the ejector pin 3 and the membrane material 5 is greater than the distance between the deformation section 2 and the membrane material 5. This prevents the ejector pin 3 from accidentally puncturing the membrane material 5 when the pressure difference between the inside and outside of the sealing system is small, thus improving the reliability of the explosion-proof valve.

[0052] In one embodiment, please refer to Figure 1 The ejector pin 3 may include a main body and connecting ends 31 and needle ends 32 respectively located at both ends of the main body. The connecting ends 31 are connected to the deformation part 2, and the main body has a bending part 33 for support in the middle. The bending part 33 may be directly or indirectly connected to at least a part of the valve body 4. The connecting ends 31 may be fixed to the deformation part 2 or the positioning part 1 by means of clips or screws, and play a role in the relative positioning of the ejector pin 3.

[0053] The deformable part 2 may have an opening 21 for the needle tip 32 to pass through, through which the needle tip 32 extends to pierce the membrane material 5. Specifically, when the internal and external pressure difference of the sealing system is small, the membrane material 5 does not exert a large force on the deformable part 2, and at this time the needle tip 32 is hidden on the other side of the deformable part 2 opposite to the membrane material 5 and does not contact the membrane material 5. When the internal and external pressure difference of the sealing system is large, the deformable part 2 is pushed by the membrane material 5 to approach the positioning part 1, and the deformable part 2 interferes with the transmission of the ejector pin 3. The needle tip 32 of the ejector pin 3 is actively protruding from the opening 21 and moving towards the membrane material 5 under the transmission action of the bending part 33, thereby actively piercing the membrane material 5.

[0054] Furthermore, in order to improve the deformation effect between the deformation part 2 and the positioning part 1 and ensure that the ejector pin 3 can be triggered correctly, a number of flexible support legs 22 that can be deformed under force are provided between the deformation part 2 and the positioning part 1. The flexible support legs 22 can be set between the deformation part 2 and the positioning part 1, and different flexible support legs 22 can be hollowed out or guided.

[0055] In another embodiment, please combine Figure 4 The figure shows another structure of the ejector pin 3 structure provided in the embodiment of this application.

[0056] The middle part of the deformable portion 2 protrudes towards the membrane material 5, and the ejector pin 3 is disposed around the protrusion of the deformable portion 2. Specifically, when the internal and external pressure difference of the sealing system is small, the membrane material 5 does not exert a large force on the deformable portion 2. At this time, the ejector pin 3 is located on one side of the deformable portion 2 and is at a certain distance from the membrane material 5, not in contact with the membrane material 5. When the deformable portion 2 is pushed by the membrane material 5 to approach the positioning portion 1, the deformable portion 2 is concave inward. At this time, the ejector pin 3 is driven by the bending portion 33 and will rotate its position with the deformation of the deformable portion 2, and actively move towards the membrane material 5, thereby actively tearing the membrane material 5.

[0057] Specifically, multiple ejector pins 3 can be provided and arranged around the raised periphery of the deformable part 2, thereby increasing the probability that the ejector pins 3 will successfully puncture the membrane material 5.

[0058] Of course, the above embodiment of the ejector pin 3 is only for illustration, and the specific implementation of the ejector pin 3 can be determined according to the actual situation.

[0059] This ejector assembly utilizes the deformable feature between the deformable part 2 and the positioning part 1. When the deformable part 2 is pushed by the membrane material 5, the ejector 3 can move towards the membrane material 5 due to the deformation interference of the deformable part 2, actively piercing or scratching the membrane material 5. The ejector assembly of this application enables the membrane material 5 and the ejector 3 to move towards each other simultaneously. Under the same pressure difference, the ejector 3 exerts a greater piercing force on the membrane material 5, enabling the membrane material 5 to burst quickly and achieving a higher success rate of membrane material 5 bursting.

[0060] Please see Figure 5 The figure shows the explosion structure of the explosion-proof valve provided in the embodiment of this application.

[0061] The explosion-proof valve includes a valve body 4, a pin assembly, and a diaphragm 5. The valve body 4 has a pressure relief channel in the middle and includes a support member 41, which is connected to the valve body 4 and disposed on the pressure relief channel. The explosion-proof valve may also include a sealing ring 8, which is installed on the valve body 4 to form a seal between the valve body 4 and the housing of the sealing system.

[0062] The support member 41 can be installed and connected to other parts of the valve body 4, or it can be integrally formed with the valve body 4. It is used to improve the rigidity of the valve body 4 and can be used to fix the ejector pin assembly so that the ejector pin assembly can abut or approach the membrane material 5.

[0063] The membrane material 5 can be made of e-PTFE or other membrane materials that can achieve both waterproofing and breathability. The membrane material 5 is directly or indirectly connected to the valve body 4, and the specific installation method can be determined according to the actual situation.

[0064] Furthermore, in combination Figure 1 The support member 41 is provided with a mounting part 411, which is located at the axial center of the valve body 4. The positioning part 1 is connected and fixed to the mounting part 411. The mounting part 411 allows the ejector pin assembly to be located at the axial center of the valve body 4. When the membrane material 5 deforms due to pressure difference, the ejector pin assembly can puncture the middle position of the membrane material 5 where the deformation is the greatest, thereby improving the puncture success rate of the ejector pin assembly.

[0065] In one embodiment, please refer to Figure 6 The figure shows the structure of the mounting part 411 provided in an embodiment of this application. The ejector pin 3 includes a main body and connecting ends 31 and needle ends 32 respectively located at both ends of the main body. The connecting ends 31 are connected to the deformation part 2, and the middle of the main body is provided with a bending part 33 for support. The mounting part 411 includes an abutment groove 412, and the bending part 33 abuts against the abutment groove 412. The bending part 33 abuts into the abutment groove 412 to provide relative positioning for the bending part 33. When the pressure difference in the sealing system is large, the membrane material 5 is pressed and pushes the deformation part 2 towards the positioning part 1. At this time, the abutment groove 412 can act as a fulcrum for the bending part 33, so that the bending part 33 converts the thrust of the deformation part 2 into a thrust of the needle end 32 towards the membrane material 5, thereby better ensuring that the ejector pin 3 punctures the membrane material 5.

[0066] In one implementation, the explosion-proof valve further includes a clamping member 7, which is used to abut the diaphragm material 5 between the valve body 4 and the clamping member 7. The clamping member 7 and the valve body 4 are detachably connected. Specifically, the clamping member 7 can be interference-fitted with the valve body 4 to clamp and fix the diaphragm material 5. Furthermore, the clamping member 7 can be detachably fixed to the valve body 4 via a snap-fit ​​or other fixing method. Further, the clamping member 7 can have a reinforcing structure added to the pressure relief channel and abut against the diaphragm material 5 to reduce the vibration of the clamping member 7 and prevent false triggering of the ejector pin 3 structure. Of course, the specific structure of the clamping member 7 can be varied, and the explosion-proof valve may also be without the clamping member 7; this application does not limit this.

[0067] The explosion-proof valve may further include a protective cover 6, which is disposed on the valve body and used to cover the pressure relief channel. The protective cover is detachably connected to the valve body and has a ventilation gap connecting the pressure relief channel to the outside. The protective cover 6 can prevent external mud or dust from entering the valve body 4, thus providing a certain degree of protection for the explosion-proof valve.

[0068] Figure 7-8 The first-state cross-sectional structure and the second-state cross-sectional structure of the explosion-proof valve provided in the embodiments of this application are shown respectively.

[0069] like Figure 7 As shown, combined with Figure 1 The explosion-proof valve includes a valve body 4, a pin assembly, and a diaphragm 5, as well as a clamping member 7, a protective cover 6, and a sealing ring 8. The clamping member 7 holds the diaphragm 5 between the valve body 4 and the clamping member 7. The deformable portion 2 of the pin assembly abuts against the diaphragm 5, and the positioning portion 1 is fixed relative to the valve body 4. The pin 3 includes a connecting end 31, a pin tip 32, and a bent portion 33, and is located between the deformable portion 2 and the positioning portion 1. The bent portion 33 abuts against the support member 41 of the valve body 4.

[0070] When the pressure difference between the inside and outside of the sealing system is small, the diaphragm 5 of the explosion-proof valve does not exert a large force on the deformation part 2. At this time, the needle tip 32 is hidden on the other side of the deformation part 2 opposite to the diaphragm 5 and does not contact the diaphragm 5. The protective cover 6 is also connected to the valve body 4. At this time, the explosion-proof valve allows the inside and outside of the sealing system to be vented and a certain pressure balance is achieved through the gap between the protective cover and the valve body and the diaphragm 5.

[0071] like Figure 8As shown, when the internal and external pressure difference of the sealing system is large, the membrane material 5 is pushed by the pressure towards the deformation part 2 and pushes the deformation part 2. The deformation part 2 is pushed by the membrane material 5 to approach the positioning part 1. The connecting part is interfered with by the deformation part 2 and moves towards the positioning part 1. At this time, the bending part 33 acts as a fulcrum to convert the thrust of the connecting part into a thrust of the needle tip 32 towards the membrane material 5, causing the needle tip 32 to actively pierce the membrane material 5. When the membrane material 5 is pierced by the needle tip 32, it will burst due to the pressure generated by the pressure relief. The protective cover 6 will also be pushed out by the released pressure. The pressure relief channel is fully opened and the pressure relief is completed quickly, which can protect the internal stability of the sealing system and prevent damage to the internal devices or even explosion.

[0072] As can be seen from the above, because the membrane material 5 and the needle tip 32 actively move towards each other until the needle tip 32 punctures the membrane material 5, the puncturing force of the needle 3 on the membrane material 5 is greater under the same pressure difference, enabling the membrane material 5 to burst quickly and achieving a higher success rate of bursting. In particular, when the internal and external pressure difference of the sealing system is below 10 kPa or even lower, the puncturing effect of the needle tip 32 on the membrane material 5 is still significant, thus ensuring a high success rate of bursting of the membrane material 5 under low pressure difference conditions.

[0073] Please see Figure 9 The figure shows the structure of the sealing system provided in an embodiment of this application.

[0074] The sealing system includes a housing structure 100 and an explosion-proof valve 200. The housing structure 100 can be used to house a power battery or other flammable and explosive power source or various components. The explosion-proof valve 200 is disposed on the housing structure 100, and the explosion-proof valve 200 can be an explosion-proof valve 200 with a pin structure as described in any of the above embodiments.

[0075] When the sealed system contains a power battery, the power battery can be a lithium battery, sodium-ion battery, fuel cell, etc., and the type of power battery is not limited. The housing structure 100 can be a box structure, and can adopt various structural methods such as metal and non-metal, as long as it can be used to protect and support the internal devices or components. Of course, in addition to the housing structure, the sealed system can also adopt other structures, such as protection circuits for battery overvoltage / overcurrent protection, starting circuits, cables, etc., and this application does not limit the specific sub-modules included in the sealed system.

[0076] It is known that when the ejector pin assembly and explosion-proof valve structure of this application are adopted, the membrane material and the ejector pin can move towards each other simultaneously. Under the same pressure difference, the ejector pin has a greater puncturing force on the membrane material, which enables the membrane material to burst quickly and the success rate of membrane material bursting is higher.

[0077] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0078] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0080] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0081] The above content is merely an example and illustration of the structure of this application, and its description is quite specific and detailed, but it should not be construed as limiting the scope of this patent application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this application, and these obvious substitutions all fall within the protection scope of this application.

Claims

1. A pin assembly for use in an explosion-proof valve, characterized in that, The explosion-proof valve includes a valve body and a waterproof and breathable membrane material installed on the valve body. The ejector pin assembly includes: A positioning part is provided on the first side of the ejector pin assembly and is used to fix it relative to the valve body; A deformable portion, disposed on the second side of the ejector pin assembly, is used to abut or approach the membrane material and is capable of relative deformation with respect to the positioning portion; and A push pin is provided on the side or inside of the deformable part; the push pin includes a main body and connecting ends and a needle end respectively provided at both ends of the main body, the connecting ends are connected to the deformable part or the positioning part, and the middle part of the main body is provided with a bent part for support; When the deformable part deforms in a first direction away from the membrane material, the ejector pin is interfered with by the deformation of the deformable part and moves in a second direction closer to the membrane material; when the pressure difference between the membrane material inside and outside the sealing system is too large, it can squeeze the deformable part, so that the deformable part and the positioning part undergo relative deformation.

2. The ejector pin assembly as described in claim 1, characterized in that, Several flexible support legs capable of deformation under stress are provided between the deformable part and the positioning part.

3. The ejector pin assembly as described in claim 1, characterized in that, The middle part of the deformable portion bulges towards the membrane material, and the ejector pin is disposed around the bulge of the deformable portion.

4. An explosion-proof valve, characterized in that, include: The valve body has a pressure relief passage for depressurization; A support member is connected to the valve body and is disposed on the pressure relief channel; A membrane material, installed on the valve body, serves to provide waterproofing and breathability; and A push pin assembly is disposed between the support member and the membrane material, and includes a positioning part, a deformation part, and a push pin. The positioning part is fixed relative to the support member. The push pin includes a main body and a connecting end and a pin end respectively disposed at both ends of the main body. The connecting end is connected to the deformation part, and the middle part of the main body is provided with a bending part for support. The ejector pin assembly is the ejector pin assembly according to any one of claims 1-3.

5. The explosion-proof valve as described in claim 4, characterized in that, The support member is provided with a mounting part, which is located at the axial center of the valve body; The positioning part and the mounting part are connected and fixed.

6. The explosion-proof valve as described in claim 5, characterized in that, The mounting part includes an abutment groove, and the bent part abuts against the abutment groove.

7. The explosion-proof valve as described in claim 4, characterized in that, The explosion-proof valve also includes: A protective cover is provided on the valve body to cover the pressure relief channel; The protective cover is detachably connected to the valve body and has an air exchange gap connecting the pressure relief channel to the outside.

8. The explosion-proof valve as described in claim 4, characterized in that, The explosion-proof valve also includes: A clamping member is used to press the membrane material against the valve body and the clamping member, and the clamping member and the valve body are detachably connected.

9. A device sealing system, characterized in that, The equipment sealing system includes: Shell structure; and An explosion-proof valve is disposed on the housing structure, and the explosion-proof valve is the explosion-proof valve as described in any one of claims 4-8.

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