CN117570231A - Thimble assembly, explosion-proof valve and sealing system - Google Patents

Thimble assembly, explosion-proof valve and sealing system Download PDF

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Publication number
CN117570231A
CN117570231A CN202311510199.8A CN202311510199A CN117570231A CN 117570231 A CN117570231 A CN 117570231A CN 202311510199 A CN202311510199 A CN 202311510199A CN 117570231 A CN117570231 A CN 117570231A
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CN
China
Prior art keywords
explosion
membrane material
thimble
deformation
valve body
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311510199.8A
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Chinese (zh)
Inventor
钟远辉
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Huizhou Voir Science & Technology Co ltd
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Huizhou Voir Science & Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huizhou Voir Science & Technology Co ltd filed Critical Huizhou Voir Science & Technology Co ltd
Priority to CN202311510199.8A priority Critical patent/CN117570231A/en
Publication of CN117570231A publication Critical patent/CN117570231A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Gasket Seals (AREA)

Abstract

The application discloses thimble assembly, explosion-proof valve and sealing system. The thimble assembly includes: the positioning part is arranged on the first side of the thimble assembly and is used for being fixed relative to the valve body; the deformation part is arranged at the second side of the thimble assembly, is used for abutting or approaching the membrane material and can generate relative deformation with the positioning part; the ejector pin is arranged at the side edge or inside the deformation part; when the deformation part deforms in a first direction away from the membrane material, the ejector pin is interfered by the deformation of the deformation part and moves in a second direction close to the membrane material. The thimble assembly, the explosion-proof valve and the sealing system can enable the membrane material and the thimble to move in opposite directions at the same time, the puncture force of the thimble to the membrane material is larger under the same pressure difference, the membrane material can be rapidly exploded, and the success rate of membrane material explosion is higher.

Description

Thimble assembly, explosion-proof valve and sealing system
Technical Field
The application relates to the technical field of explosion-proof devices, in particular to a thimble assembly, an explosion-proof valve and a sealing system.
Background
The mechanical seal box of the equipment is usually internally provided with devices such as a battery or other power sources, and the like, and the conditions of casualties and property loss caused by deflagration, blasting and the like are easy to occur due to the characteristics of the seal structure, so that great safety risks are brought to users.
The application scene and the application of the traditional thimble type explosion-proof valve are embodied as the core action of high-pressure explosion prevention, but as the application performance requirement of a client side on the type explosion-proof valve is also higher and stricter, the traditional thimble type explosion-proof valve pierces an e-PTFE membrane material expanded under high pressure through a static thimble, and the type thimble type explosion-proof valve can realize the explosion prevention after the thimble is used for piercing the membrane material due to the fact that the membrane material is required to move to the thimble under high pressure, if the air pressure does not reach a certain degree, the thimble only breaks the membrane material but can not effectively burst.
In addition, the relative air pressure flow generated by vibration in daily use also easily causes the expanded e-PTFE membrane to be punctured but not exploded, the risk of membrane failure exists, the membrane can not effectively reach the explosion when the air pressure is lower than 10kpa or lower, when the environment temperature in a mechanical equipment sealed box continuously rises, if the pressure difference between the inside and the outside is too large, the rapid explosion of the membrane can not be realized, the circuit alarm fault is caused if the pressure difference is light, and the fire explosion of the sealed cavity can be caused if the pressure difference is heavy.
Disclosure of Invention
In order to solve the above-mentioned problem that prior art exists, this application provides a thimble subassembly, explosion-proof valve and sealing system, and this thimble subassembly can improve the blasting success rate of top to the membrane material to improve sealing system's reliability.
The application provides the following technical scheme:
in a first aspect, the present application provides a thimble assembly for use in an explosion-proof valve, the explosion-proof valve including a valve body and a membrane material for waterproofing and ventilation mounted on the valve body, the thimble assembly comprising:
the positioning part is arranged on the first side of the thimble assembly and is used for being fixed relative to the valve body;
the deformation part is arranged at the second side of the thimble assembly, is used for abutting or approaching the membrane material, and can generate relative deformation with the positioning part; and
the ejector pin is arranged at the side edge or inside the deformation part;
when the deformation part deforms in a first direction away from the membrane material, the ejector pin is interfered by the deformation of the deformation part and moves in a second direction close to the membrane material.
In an embodiment, the thimble includes a trunk, and a connecting end and a needle end that are respectively disposed at two ends of the trunk, the connecting end is connected with the deformation portion or the positioning portion, and a bending portion for supporting is disposed in the middle of the trunk.
In an embodiment, a plurality of soft supporting legs capable of being deformed under stress are arranged between the deformation part and the positioning part.
In an embodiment, the middle part of the deformation part is relatively raised towards the direction of the membrane material, and the thimble is arranged at the periphery of the raised part of the deformation part.
In a second aspect, the present application also discloses an explosion-proof valve comprising:
the valve body is provided with a pressure relief channel for pressure relief;
the support piece is connected with the valve body and is arranged on the pressure relief channel;
the membrane material is arranged on the valve body and is used for preventing water and ventilation; and
the ejector pin assembly is arranged between the supporting piece and the film and comprises a positioning part, a deformation part and ejector pins, and the positioning part is relatively fixed with the supporting piece;
the thimble assembly is the thimble assembly according to any one of claims 1-4.
In one embodiment, the support member is provided with a mounting part, and the mounting part is arranged at the axial center position of the valve body;
the positioning part is fixedly connected with the mounting part.
In an embodiment, the thimble includes a trunk, and a connecting end and a needle end respectively arranged at two ends of the trunk, wherein the connecting end is connected with the deformation part, and a bending part for supporting is arranged in the middle of the trunk;
the mounting portion comprises an abutting groove, and the bending portion abuts against the abutting groove.
In an embodiment, the explosion proof valve further comprises:
the protective cover is arranged on the valve body and used for covering the pressure relief channel;
the protective cover is detachably connected with the valve body, and is provided with a ventilation gap communicated between the pressure release channel and the outside.
In an embodiment, the explosion proof valve further comprises:
the compressing piece is used for abutting the membrane material between the valve body and the compressing piece, and the compressing piece is detachably connected with the valve body.
In a third aspect, the present application also discloses an apparatus sealing system comprising:
a housing structure; and
the explosion-proof valve is arranged on the shell structure and is any one of the explosion-proof valves.
From the above, the thimble assembly, the explosion-proof valve and the sealing system provided by the application, the thimble assembly can be deformed between the deformation part and the positioning part through the characteristic of deformation, and when the deformation part is pushed by the membrane material, the thimble can be interfered by the deformation of the deformation part so that the thimble can move towards the membrane material direction and actively puncture or scratch the membrane material. The thimble assembly can enable the membrane material and the thimble to move in opposite directions at the same time, the puncture force of the thimble to the membrane material is larger under the same pressure difference, the membrane material can be rapidly exploded, and the success rate of membrane material explosion is higher.
Drawings
FIG. 1 is a schematic cross-sectional view of an ejector pin assembly according to an embodiment of the present disclosure.
FIG. 2 is a schematic view of a first view structure of an ejector pin assembly according to an embodiment of the present disclosure.
FIG. 3 is a schematic view of a second view structure of an ejector pin assembly according to an embodiment of the present disclosure.
FIG. 4 is a schematic view of another construction of a spike assembly according to an embodiment of the present disclosure.
Fig. 5 is an explosion structure schematic diagram of an explosion-proof valve according to an embodiment of the present application.
Fig. 6 is an enlarged schematic view of the structure of the mounting portion of the explosion-proof valve according to the embodiment of the present application.
Fig. 7 is a schematic cross-sectional view of a first state of an explosion-proof valve according to an embodiment of the present application.
Fig. 8 is a schematic sectional view of a second state of an explosion-proof valve according to an embodiment of the present application.
Fig. 9 is a schematic structural diagram of a sealing system according to an embodiment of the present application.
Detailed Description
For an understanding of the present application, reference will now be made in detail to the drawings and specific examples. Preferred embodiments of the present application are shown in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1, a cross-sectional structure of an ejector pin assembly according to an embodiment of the present application is shown in fig. 1.
As shown in fig. 1, the thimble assembly is used in an explosion-proof valve, and the explosion-proof valve comprises a valve body 4 and a waterproof and breathable membrane material 5 arranged on the valve body 4. The explosion-proof valve is provided with a membrane material 5, a pressure release channel for pressure release is arranged in the valve body 4, and the membrane material 5 is arranged on the pressure release channel of the valve body 4, so that when the explosion-proof valve is arranged on a relatively sealed box body, the inner side and the outer side of the valve body 4 form relatively independent spaces through the interval of the membrane material 5, and the relatively stable environment in the sealed box body is ensured.
The membrane material 5 may be e-PTFE or other membrane material 5 that can realize waterproof and breathable functions. The membrane material 5 is directly or indirectly connected with the valve body 4, and the specific installation mode can be determined according to actual conditions.
The thimble assembly comprises a positioning part 1, a deformation part 2 and a thimble 3. The positioning part 1 is arranged on the first side of the thimble assembly and is used for being relatively fixed with the valve body 4. The positioning portion 1 may be directly or indirectly fixed to the valve body 4 by a conventional fixing means, for example, by a screw, a buckle, or a detachable means, or may be directly or indirectly integrally formed with the valve body 4. It will be appreciated that the connection between the positioning portion 1 and the valve body 4 is not limited.
The deformation part 2 is arranged at the second side of the thimble assembly, is used for abutting or approaching the membrane material 5, and can generate relative deformation with the positioning part 1. Specifically, the deformation portion 2 may be made of at least a part of soft material, and when the pressure difference between the inside and the outside of the sealing system of the membrane 5 is too large, the deformation portion 2 can be extruded, so that the deformation portion 2 and the positioning portion 1 are deformed relatively. The deformation part 2 and the positioning part 1 can be connected by soft materials, or can be integrally formed by soft materials, such as rubber materials.
Fig. 2-3 respectively show the structures of the first view and the second view of the thimble 3 structure provided in the embodiment of the present application.
With reference to fig. 2-3, the front end of the deformation portion 2 may be provided with a contact surface, where the contact surface is used to abut against the membrane material 5, so that not only the contact effect on the membrane material 5 can be improved, but also the movement of the membrane material 5 can be more effectively conducted to the deformation portion 2, and the risk that the membrane material 5 is damaged by the false puncturing of the membrane material 5 by the ejector pins 3 caused by the vibration of the membrane material 5 or other non-dangerous factors can be avoided by abutting against the surface of the membrane material 5. Of course, the deformed portion 2 may be just in the vicinity of the membrane 5, but may not be in direct contact with the membrane. The specific implementation may depend on the actual situation.
The thimble 3 may be made of metal, hard plastic or other hard materials, so that the thimble 3 has sufficient structural strength to scratch the membrane 5. The thimble 3 can be arranged at the side edge or the inside of the deformation part 2, and the distance between the thimble 3 and the membrane material 5 is larger than the distance between the deformation part 2 and the membrane material 5 in the conventional state, so that the thimble 3 does not puncture the membrane material 5 by mistake when the internal and external pressure difference of the sealing system is smaller, and the reliability of the explosion-proof valve is improved.
In an embodiment, referring to fig. 1, the thimble 3 may include a trunk, and a connecting end 31 and a needle end 32 respectively disposed at two ends of the trunk, where the connecting end 31 is connected with the deformation portion 2, and a bending portion 33 for supporting is disposed in the middle of the trunk. The bend 33 may be directly or indirectly connected to at least a portion of the valve body 4. The connecting end 31 can be connected to the deformation part 2 or the positioning part 1 in a fastening or screw fixing manner, and plays a role in relatively positioning the thimble 3.
The deformation part 2 can be provided with an opening 21 for the needle end 32 to penetrate out, and the needle end 32 can extend out through the opening 21 to puncture the membrane 5. Specifically, when the pressure difference between the inside and outside of the sealing system is smaller, the membrane 5 does not generate a larger acting force on the deformation portion 2, and at this time, the needle end 32 is hidden at the other side of the deformation portion 2 opposite to the membrane 5 and is not in contact with the membrane 5. When the internal and external pressure difference of the sealing system is large, the deformation part 2 is pushed by the membrane material 5 to approach the positioning part 1, and the deformation part 2 performs transmission interference on the thimble 3. The needle end 32 of the thimble 3 actively penetrates out from the opening 21 to move towards the membrane material 5 under the transmission action of the bending part 33, so that the membrane material 5 is actively scratched.
Further, in order to improve the deformation effect between the deformation portion 2 and the positioning portion 1, the ejector pin 3 is ensured to be triggered correctly, and a plurality of soft supporting legs 22 capable of being deformed under force are arranged between the deformation portion 2 and the positioning portion 1. The soft support legs 22 can be arranged between the deformation part 2 and the positioning part 1, and different soft support legs 22 can be hollowed out or guided.
In another embodiment, please refer to fig. 4, which illustrates another structure of the thimble 3 structure provided in the embodiment of the present application.
The middle part of the deformation part 2 bulges relatively towards the direction of the membrane material 5, and the thimble 3 is arranged at the periphery of the bulge part of the deformation part 2. Specifically, when the pressure difference between the inside and outside of the sealing system is smaller, the membrane material 5 does not generate a larger acting force on the deformation part 2, and at this time, the thimble 3 is positioned at one side of the deformation part 2 and has a certain distance from the membrane material 5, so that the thimble is not in contact with the membrane material 5. When the deformation part 2 is pushed by the film 5 to approach the positioning part 1, the deformation part 2 is recessed inward, and the thimble 3 is driven by the bending part 33 to rotate along with the deformation of the deformation part 2 and actively move towards the film 5 to actively scratch the film 5.
Specifically, the ejector pins 3 may be provided in plurality and surround the periphery of the bulge of the deformation portion 2, so as to improve the probability of the ejector pins 3 successfully piercing the membrane 5.
Of course, the embodiment of the thimble 3 is merely used as an example, and the specific implementation of the thimble 3 may be determined according to the actual situation.
The thimble assembly is characterized in that the thimble assembly can deform between the deformation part 2 and the positioning part 1, when the deformation part 2 is pushed by the membrane 5, the thimble 3 can be interfered by the deformation of the deformation part 2 so that the thimble assembly can move towards the direction of the membrane 5 and actively puncture or scratch the membrane 5. The thimble assembly can enable the membrane material 5 and the thimble 3 to move in opposite directions simultaneously, the puncture force of the thimble 3 to the membrane material 5 is larger under the same pressure difference, the membrane material 5 can be rapidly exploded, and the success rate of the membrane material 5 explosion is higher.
Referring to fig. 5, an explosion structure of an explosion-proof valve provided in an embodiment of the present application is shown.
The explosion-proof valve comprises a valve body 4, a thimble assembly and a membrane 5, wherein a pressure relief channel is arranged in the middle of the valve body 4, the explosion-proof valve comprises a support piece 41, and the support piece 41 is connected with the valve body 4 and is arranged on the pressure relief channel. The explosion proof valve may further comprise a sealing ring 8, which sealing ring 8 is mounted on the valve body 4 in order to form a seal between the valve body 4 and the housing of the sealing system.
The supporting member 41 may be installed and connected with other parts of the valve body 4, or may be integrally formed with the valve body 4, for improving rigidity of the valve body 4, and may be used for fixing the thimble assembly, so that the thimble assembly can abut against or approach the membrane material 5.
The membrane material 5 can be e-PTFE or other membrane materials 5 which can realize waterproof and ventilation functions. The membrane material 5 is directly or indirectly connected with the valve body 4, and the specific installation mode can be determined according to actual conditions.
Further, referring to fig. 1, the support member 41 is provided with a mounting portion 411, and the mounting portion 411 is provided at the axial center position of the valve body 4, and the positioning portion 1 is fixedly connected to the mounting portion 411. The mounting portion 411 can enable the thimble assembly to be located at the axial center of the valve body 4, and when the membrane material 5 deforms due to pressure difference, the thimble assembly can puncture the middle position with the largest deformation amount of the membrane material 5, so as to improve the puncture success rate of the thimble assembly.
In an embodiment, please refer to fig. 6, which illustrates a structure of the mounting portion 411 provided in an embodiment of the present application. The thimble 3 comprises a trunk, a connecting end 31 and a needle end 32 which are respectively arranged at two ends of the trunk, the connecting end 31 is connected with the deformation part 2, and a bending part 33 for supporting is arranged in the middle of the trunk. The mounting portion 411 includes an abutment groove 412, and the bending portion 33 abuts against the abutment groove 412. The structure of the bending portion 33 is abutted into the abutting groove 412 to relatively position the bending portion 33. When the pressure difference in the sealing system is large, the membrane material 5 is pressed to push the deformation part 2 to the positioning part 1, and at the moment, the abutting groove 412 can play a role in supporting the bending part 33, so that the bending part 33 converts the thrust of the deformation part 2 into the thrust of the needle end 32 in the direction of the membrane material 5, and the puncture of the membrane material 5 by the thimble 3 is better ensured.
In one implementation manner, the explosion-proof valve further comprises a pressing piece 7, wherein the pressing piece 7 is used for abutting the membrane 5 between the valve body 4 and the pressing piece 7, and the pressing piece 7 is detachably connected with the valve body 4. Specifically, the pressing piece 7 can be in interference fit with the valve body 4, so that the clamping and fixing of the membrane material 5 are realized. The pressing member 7 can be detachably fixed to the valve body 4 by a snap or other fixing means. Furthermore, the compression piece 7 can be additionally provided with a reinforcing structure on the pressure release channel and is abutted with the membrane material 5, so that the vibration of the compression piece 7 is reduced, and the false triggering of the thimble 3 structure is avoided. Of course, the specific structure of the pressing member 7 may be various, and the explosion-proof valve may not be provided with the pressing member 7, which is not limited in this application.
The explosion-proof valve can further comprise a protective cover 6, wherein the protective cover 6 is arranged on the valve body and used for covering the pressure relief channel; the protective cover is detachably connected with the valve body and is provided with a ventilation gap communicated between the pressure release channel and the outside. The protective cover 6 can prevent external silt or dust from entering the valve body 4 and has a certain protection effect on the explosion-proof valve.
Fig. 7-8 show a first state cross-sectional structure and a second state cross-sectional structure of an explosion-proof valve according to an embodiment of the present application, respectively.
As shown in fig. 7, in combination with fig. 1, the explosion-proof valve includes a valve body 4, a thimble assembly, a membrane 5, a pressing member 7, a protective cover 6, and a sealing ring 8. The pressing member 7 abuts the membrane 5 between the valve body 4 and the pressing member 7. The deformation part 2 of the thimble assembly is propped against the membrane 5, and the positioning part 1 and the valve body 4 are relatively fixed. The thimble 3 includes a connecting end 31, a needle end 32, and a bending portion 33, and is located between the deformation portion 2 and the positioning portion 1. The bent portion 33 abuts against the support 41 of the valve body 4.
When the pressure difference between the inside and the outside of the sealing system is smaller, the membrane 5 of the explosion-proof valve does not generate larger acting force on the deformation part 2, at the moment, the needle end 32 is hidden at the other side of the deformation part 2 opposite to the membrane 5 and is not in contact with the membrane 5, the protective cover 6 is also connected with the valve body 4, and at the moment, the explosion-proof valve realizes ventilation through the gap between the protective cover and the valve body and the membrane 5, and performs certain pressure balance.
As shown in fig. 8, when the pressure difference between the inside and outside of the sealing system is large, the membrane 5 is pushed by the pressure to move in the direction of the deformation portion 2 and push the deformation portion 2. The deformation portion 2 is pressed by the film 5 to approach the positioning portion 1, and the connection portion is moved in the direction of the positioning portion 1 by the interference of the deformation portion 2, and at this time, the bending portion 33 converts the pushing force of the connection portion into the pushing force of the needle end 32 in the direction of the film 5 as a fulcrum, so that the needle end 32 is actively pierced toward the film 5. When the membrane material 5 is punctured by the needle end 32, the membrane material can be exploded due to the pressure generated by pressure relief, the protective cover 6 can be flushed out by the pressure released, the pressure relief channel is completely opened, the pressure relief is completed rapidly, the stability of the inside of the sealing system can be protected, and the damage and even explosion of the internal device can be avoided.
From the above, the two structures of the membrane material 5 and the needle end 32 actively move in opposite directions until the needle end 32 punctures the membrane material 5, so that the puncture force of the thimble 3 on the membrane material 5 is greater under the same pressure difference, the membrane material 5 can be quickly exploded, and the success rate of the membrane material 5 is higher. In particular, when the pressure difference between the inside and outside of the sealing system is lower than 10kpa or lower, the piercing effect of the needle end 32 on the membrane material 5 is still remarkable, so that the success rate of the bursting of the membrane material 5 can be ensured under the condition of low pressure difference.
Referring to fig. 9, a structure of a sealing system provided in an embodiment of the present application is shown.
The sealing system includes a housing structure 100 and an explosion-proof valve 200, the housing structure 100 can be used to accommodate 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 including a thimble structure as in any of the above embodiments.
Where a power battery is accommodated in the sealing system, the power battery may be a lithium battery, a sodium ion battery, a fuel cell, or the like, and the type of the power battery is not limited. The housing structure 100 may be a box structure, and may be made of metal, nonmetal, or other various structural manners, so long as the structure is used for protecting and supporting the internal device or component. Of course, the sealing system may also employ other structures besides the case structure, such as a protection circuit for over-voltage/over-current protection of the battery, a start-up circuit, a cable, etc., and the specific sub-module included in the sealing system is not limited thereto.
It can be known that after the thimble assembly and the explosion-proof valve structure are adopted, the membrane material and the thimble can move in opposite directions at the same time, the puncture force of the thimble to the membrane material is larger under the same pressure difference, the membrane material can be quickly exploded, and the success rate of membrane material explosion is higher.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Unless defined otherwise, 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 description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The foregoing is merely illustrative and explanatory of the structures of this application, which are described in some detail and are not to be construed as limiting the scope of this application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the present application, and that these obvious alternatives fall within the scope of the present application.

Claims (10)

1. An ejector pin assembly for use in an explosion-proof valve, the explosion-proof valve comprising a valve body and a membrane material mounted on the valve body for waterproofing and venting, the ejector pin assembly comprising:
the positioning part is arranged on the first side of the thimble assembly and is used for being fixed relative to the valve body;
the deformation part is arranged at the second side of the thimble assembly, is used for abutting or approaching the membrane material, and can generate relative deformation with the positioning part; and
the ejector pin is arranged at the side edge or inside the deformation part;
when the deformation part deforms in a first direction away from the membrane material, the ejector pin is interfered by the deformation of the deformation part and moves in a second direction close to the membrane material.
2. The thimble assembly according to claim 1, wherein said thimble comprises a trunk, and a connecting end and a needle end respectively provided at both ends of said trunk, said connecting end being connected to said deformation portion or positioning portion, and a bending portion for supporting being provided in a middle portion of said trunk.
3. The thimble assembly according to claim 1, wherein a plurality of flexible legs capable of being deformed by force are arranged between said deformation portion and said positioning portion.
4. The thimble assembly according to claim 1, wherein the middle portion of the deformation portion is relatively protruded toward the film material, and the thimble is disposed at the periphery of the protruded portion of the deformation portion.
5. An explosion-proof valve, comprising:
the valve body is provided with a pressure relief channel for pressure relief;
the support piece is connected with the valve body and is arranged on the pressure relief channel;
the membrane material is arranged on the valve body and is used for preventing water and ventilation; and
the ejector pin assembly is arranged between the supporting piece and the film and comprises a positioning part, a deformation part and ejector pins, and the positioning part is relatively fixed with the supporting piece;
the thimble assembly is the thimble assembly according to any one of claims 1-4.
6. The explosion-proof valve as set forth in claim 5, wherein said support member is provided with a mounting portion provided at an axial center position of said valve body;
the positioning part is fixedly connected with the mounting part.
7. The explosion-proof valve as set forth in claim 6, wherein said thimble comprises a trunk, and a connecting end and a needle end respectively provided at both ends of said trunk, said connecting end is connected with said deformation portion, and a bending portion for supporting is provided in the middle of said trunk;
the mounting portion comprises an abutting groove, and the bending portion abuts against the abutting groove.
8. The explosion-proof valve as set forth in claim 5, further comprising:
the protective cover is arranged on the valve body and used for covering the pressure relief channel;
the protective cover is detachably connected with the valve body, and is provided with a ventilation gap communicated between the pressure release channel and the outside.
9. The explosion-proof valve as set forth in claim 5, further comprising:
the compressing piece is used for abutting the membrane material between the valve body and the compressing piece, and the compressing piece is detachably connected with the valve body.
10. An equipment sealing system, the equipment sealing system comprising:
a housing structure; and
an explosion-proof valve provided on the housing structure, the explosion-proof valve being as claimed in any one of claims 5 to 9.
CN202311510199.8A 2023-11-13 2023-11-13 Thimble assembly, explosion-proof valve and sealing system Pending CN117570231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311510199.8A CN117570231A (en) 2023-11-13 2023-11-13 Thimble assembly, explosion-proof valve and sealing system

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CN202311510199.8A CN117570231A (en) 2023-11-13 2023-11-13 Thimble assembly, explosion-proof valve and sealing system

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CN117570231A true CN117570231A (en) 2024-02-20

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