Internally-riveted umbrella-valve-imitating waterproof breathable explosion-proof valve

Abstract

The utility model relates to the technical field of waterproof ventilation valves, in particular to an internally-riveted umbrella-valve-imitating waterproof ventilation explosion-proof valve which comprises a valve body, a valve element arranged in the valve body, a waterproof ventilation film arranged on the valve element, a pressing ring arranged on the waterproof ventilation film and a cover body connected to the top of the valve body. The pressing ring and the waterproof breathable film are surrounded by the cover body, a gap is formed between the cover body and the inner wall of the valve body, and the cover body is provided with an exhaust hole; and an elastic piece is connected between the valve core and the valve body. The valve body and the valve element are connected through the elastic piece, in the normal state, gas can be exchanged through the waterproof breathable film to balance pressure, and when the air pressure in equipment is sharply increased, the valve element can be opened under the action of the pressure to rapidly relieve pressure, and the equipment is prevented from detonation. According to the utility model, the valve core and the valve body are in umbrella-shaped fit, so that the sealing effect is ensured, and quick opening is facilitated when the internal pressure of equipment is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to waterproof and breathable valve technical field, concretely relates to a kind of inner riveting umbrella valve waterproof and breathable explosion-proof valve. BACKGROUND

[0002] Waterproof and breathable valve is the assembly that waterproof and breathable film material is encapsulated in the main body of plastic or metal material by injection molding, compression, ultrasonic welding etc.Form.Waterproof and breathable valve is often used in various harsh environments, it has waterproof and breathable film material, can effectively protect the product inside from moisture damage, and have still breathable effect, balance internal and external pressure difference, avoid product damage.Wide application in communication equipment, battery, outdoor lamps, photovoltaic equipment, precision electronic equipment etc., prevent water, dust and other sundries in external environment from entering the inside of product.But if meet the situation that equipment internal pressure is too large, such as lithium battery overcharge overdischarge, short circuit etc., heat runaway can occur, so that the battery internal temperature rises, pressure increases, and when internal temperature is too high, internal electrode and electrolyte react, release a large amount of gas in a short time, more can make internal pressure increase rapidly, in this case, the waterproof and breathable film in the conventional waterproof and breathable valve is small, can be broken under the action of pressure and lead to damage, limit the life of waterproof and breathable valve, and battery can also appear explosion, there is great hidden danger. SUMMARY

[0003] In order to solve the above problems, the utility model provides a kind of inner riveting umbrella valve waterproof and breathable explosion-proof valve.

[0004] The utility model discloses the following scheme realizes:

[0005] A kind of inner riveting umbrella valve waterproof and breathable explosion-proof valve, including valve body, valve core being arranged in the valve body, waterproof and breathable membrane being arranged on the valve core, compression ring being arranged on the waterproof and breathable membrane, and cover being connected to the top of the valve body, the cover is surrounded in the compression ring, waterproof and breathable membrane, the cover has interval between the valve body inner wall, the cover is provided with exhaust hole;The valve core is connected with the valve body between a elastic member;The valve core is provided with a breathable path in position corresponding to the waterproof and breathable membrane;The inner wall of the valve body is provided with first inclined plane, and the outer wall of the valve core is provided with second inclined plane matched with the first inclined plane;The top surface of the compression ring is provided with a plurality of bosses, and gas passage is formed between adjacent bosses.

[0006] Further, the second inclined plane is provided with first recess, and first sealing element is arranged in the first recess, and the first sealing element and the first inclined plane abut.

[0007] Further, the valve body inner wall is provided with a connecting frame, the valve core has a connecting rod, the connecting rod is movably connected with the connecting frame, and the air passage penetrates through the connecting rod; one end of the elastic member is connected with the connecting frame, and the other end of the elastic member is connected with the end of the connecting rod through a hot melt pad.

[0008] Further, the valve core top surface surrounding edge is provided with a connecting table, and the waterproof air permeable film is connected to the connecting table.

[0009] Further, the connecting table top surface is provided with a second groove.

[0010] Further, the plurality of bosses are circularly arranged with the center of the compression ring as a reference.

[0011] Further, the exhaust hole has a plurality of exhaust holes, and the plurality of exhaust holes are circularly arranged on the cover body side wall with the center of the cover body as a reference.

[0012] Further, the valve body comprises a valve head section and a threaded section connected to the bottom of the valve head section, a containing groove is arranged on the bottom surface of the valve head section surrounding the outer periphery of the threaded section, and a second sealing member is arranged in the containing groove.

[0013] Further, the valve core top surface is provided with a plurality of support strips.

[0014] Further, the cover body is connected to the valve body by crimping.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The valve body and the valve core are connected through the elastic member, in a normal state, the gas can be exchanged through the waterproof air permeable film to balance the pressure, when the internal pressure of the equipment increases sharply, the valve core can be opened under the action of the pressure to rapidly release the pressure, and the equipment is prevented from exploding. The valve core and the valve body are in umbrella-shaped cooperation, which not only ensures the sealing effect, but also facilitates rapid opening when the internal pressure of the equipment is high. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A cross-sectional view of the internal riveting umbrella valve waterproof air permeable explosion-proof valve is provided.

[0018] Figure 2 An explosion view of the utility model.

[0019] Figure 3 A general schematic view of the utility model.

[0020] The drawings include:

[0021] Valve body 1, first inclined surface 11, connecting frame 12, valve head section 13, threaded section 14, containing groove 15, second sealing element 16, valve core 2, air passage 21, second inclined surface 22, first groove 23, first sealing element 24, connecting rod 25, connecting table 26, second groove 27, support strip 28, waterproof air permeable membrane 3, compression ring 4, boss 41, cover 5, exhaust hole 51, elastic element 6. DETAILED DESCRIPTION

[0022] In order for those skilled in the art to understand the present application, the present application will be described in further detail below with specific examples and drawings.

[0023] Example 1

[0024] Reference Figures 1-3 The present application provides a waterproof air permeable explosion-proof valve, comprising a valve body 1, a valve core 2 arranged in the valve body 1, a waterproof air permeable membrane 3 arranged on the valve core 2, a compression ring 4 arranged on the waterproof air permeable membrane 3, and a cover 5 connected to the top of the valve body 1, wherein the cover 5 surrounds the compression ring 4 and the waterproof air permeable membrane 3. In this embodiment, the cover 5 is connected to the valve body 1 by crimping, that is, the lower end of the side wall of the cover 5 is buckled into the valve core 2, and at the same time, the surface of the cover 5 is flat, which is convenient for adsorption to open, thereby facilitating air tightness detection.

[0025] The cover 5 and the inner wall of the valve body 1 have a gap, the cover 5 is provided with an exhaust hole 51, and the valve core 2 is provided with an air passage 21 corresponding to the position of the waterproof air permeable membrane 3. When the waterproof air permeable explosion-proof valve is in a normal state, when the internal pressure of the equipment is greater than the external pressure, the gas in the equipment passes through the waterproof air permeable membrane 3 from the air passage 21 and is discharged from the exhaust hole 51 of the cover 5, thereby balancing the internal and external pressures. When the internal pressure of the equipment is less than the external pressure, the external gas enters from the exhaust hole 51, passes through the waterproof air permeable membrane 3, and then enters the air passage 21, and finally enters the interior of the equipment through the air passage 21, thereby balancing the internal and external pressures.

[0026] The inner wall of the valve body 1 is provided with a first inclined surface 11, and the outer wall of the valve core 2 is provided with a second inclined surface 22 matched with the first inclined surface 11, so as to be attached to each other. Figure 1 For example, the first inclined surface 11 makes the position of the inner wall of the valve body 1 form an inverted horn, and in a normal working state, the first inclined surface 11 and the second inclined surface 22 are in contact to form an umbrella-shaped seal. Such a sealing method, when the external pressure is greater than the internal pressure, the valve core 2 has a tendency to move towards the valve body 1 under pressure, so that the second inclined surface 22 is tightly pressed onto the first inclined surface 11, that is, the greater the external pressure, the better the sealing effect of the first inclined surface 11 and the second inclined surface 22.

[0027] The valve core 2 is connected with the valve body 1 with an elastic member 6. The inner wall of the valve body 1 is provided with a connecting frame 12, the valve core 2 has a connecting rod 25, the connecting rod 25 is movably connected with the connecting frame 12, and the air passage 21 penetrates through the connecting rod 25. One end of the elastic member 6 is connected with the connecting frame 12, and the other end of the elastic member 6 is connected with the connecting rod 25. When the pressure inside the equipment is greater than the yield degree of the elastic member 6, the elastic member 6 is elastically deformed, the second inclined surface 22 of the valve core 2 is separated from the first inclined surface 11 of the valve core 2, that is, the valve core 2 is opened under the action of the internal pressure, at this time, the gas in the equipment can be quickly discharged to the outside, until the pressure inside the equipment is less than the yield degree of the elastic member 6, the valve core 2 resets and returns to the closed state. In the embodiment, the elastic member 6 adopts a spring, the spring is sleeved on the connecting rod 25, the upper end of the spring is connected with the connecting frame 12, and the lower end of the spring is connected with a flange arranged at the end of the connecting rod 25. Of course, a hot melt pad can also be arranged at the bottom of the connecting rod 25, and the lower end of the spring is connected with the hot melt pad. Under the cooperation of the elastic member, the limit maximum gas pressure of the utility model during normal operation is lower than 3.0 kilopascals.

[0028] The top surface of the compression ring 4 is provided with a plurality of bosses 41, and the adjacent bosses 41 form an air outlet. In the embodiment, a plurality of bosses 41 are distributed in a circular array with the center of the compression ring 4 as the reference. When the cover body 5 is assembled to the valve core 2, the bosses 41 can be in contact with the cover body 5, so as to ensure that the waterproof and breathable membrane 3 is compressed, and prevent the membrane from being greatly deformed to cause the micro holes to be stretched.

[0029] The second inclined surface 22 is provided with a first groove 23, the first groove 23 is provided with a first sealing member 24, the first sealing member 24 and the first inclined surface 11 are in abutment, in the normal state, the valve core 2 is closed under the action of the elastic force of the elastic member 6, the first sealing member 24 is extruded and tightly connected with the first inclined surface 11, so as to ensure the sealing property.

[0030] The top surface of the valve core 2 is provided with a connecting table 26 around the edge, and the waterproof and breathable membrane 3 is connected to the connecting table 26. In the embodiment, the connecting table 26 protrudes from the second inclined surface 22, and the lower end of the side wall of the cover body 5 is buckled into the bottom surface of the connecting table 26, so as to ensure the close connection between the cover body 5 and the valve core 2, and avoid the situation that the cover body 5 and the valve core 2 are separated.

[0031] The exhaust holes 51 are a plurality of, a plurality of exhaust holes 51 are distributed in a circumferential array on the side wall of the cover body 5 with the center of the cover body 5 as the reference. The number of the exhaust holes 51 is at least the same as the number of the air outlets, and in the embodiment, the exhaust holes 51 and the air outlets are one-to-one corresponding.

[0032] The valve body 1 comprises a valve head section 13 and a threaded section 14 connected to the bottom of the valve head section 13, which can be connected with a device such as a battery. The bottom surface of the valve head section 13 is provided with a receiving groove 15 around the outer periphery of the threaded section 14, and the receiving groove 15 is provided with a second sealing member 16.

[0033] Embodiment 2

[0034] With reference to Figures 1-3 The utility model provides a kind of inner riveting umbrella valve waterproof breathable explosion-proof valve, including valve body 1, valve core 2 being arranged in the valve body 1, waterproof breathable membrane 3 being arranged on the valve core 2, press ring 4 being arranged on the waterproof breathable membrane 3, and cover 5 being connected to the top of the valve body 1, the cover 5 surrounds the press ring 4, waterproof breathable membrane 3 inside.This embodiment, the cover 5 is connected to the valve body 1 by rolling cover mode, i.e. the lower end of the side wall of cover 5 is buckled into valve core 2, and simultaneously, the surface of cover 5 is flat, is convenient to adsorb to open, to facilitate air-tightness detection.

[0035] The cover 5 and the inner wall of the valve body 1 have a spacing, the cover 5 is provided with exhaust hole 51, the valve core 2 is provided with a breathable channel 21 corresponding to the position of the waterproof breathable membrane 3, when the inner riveting umbrella valve waterproof breathable explosion-proof valve is in normal state, when the internal pressure of equipment is greater than external pressure, gas in the internal of equipment enters from breathable channel 21, passes through waterproof breathable membrane 3, and is discharged from exhaust hole 51 of cover 5, to balance internal and external pressure, when the internal pressure of equipment is less than external pressure, external gas enters from exhaust hole 51, passes through waterproof breathable membrane 3, then enters breathable channel 21, and finally enters the internal of equipment through breathable channel 21, to balance internal and external pressure.

[0036] The inner wall of the valve body 1 is provided with a first inclined surface 11, and the outer wall of the valve core 2 is provided with a second inclined surface 22 matched with the first inclined surface 11, to attach Figure 1 For example, the first inclined surface 11 makes the position of the inner wall of the valve body 1 form an inverted horn, in normal working state, the first inclined surface 11 and the second inclined surface 22 are in contact, to form umbrella-shaped sealing, such sealing mode, when external pressure is greater than internal pressure, the valve core 2 has the tendency to move towards the valve body 1 under pressure, so that the second inclined surface 22 is pressed tightly to the first inclined surface 11, i.e. the greater the external pressure, the better the sealing effect of the first inclined surface 11 and the second inclined surface 22.

[0037] The valve core 2 is connected with the valve body 1 with an elastic member 6. The inner wall of the valve body 1 is provided with a connecting frame 12, the valve core 2 has a connecting rod 25, the connecting rod 25 is movably connected with the connecting frame 12, and the air passage 21 penetrates through the connecting rod 25. One end of the elastic member 6 is connected with the connecting frame 12, and the other end of the elastic member 6 is connected with the connecting rod 25. When the pressure inside the equipment is greater than the yield degree of the elastic member 6, the elastic member 6 is elastically deformed, the second inclined surface 22 of the valve core 2 is separated from the first inclined surface 11 of the valve core 2, that is, the valve core 2 is opened under the action of the internal pressure, at this time, the gas in the equipment can be quickly discharged to the outside, until the pressure inside the equipment is less than the yield degree of the elastic member 6, the valve core 2 resets and returns to the closed state. In the embodiment, the elastic member 6 adopts a spring, the spring is sleeved on the connecting rod 25, the upper end of the spring is connected with the connecting frame 12, and the lower end of the spring is connected with a flange arranged at the end of the connecting rod 25. Of course, a hot melt pad can also be arranged at the bottom of the connecting rod 25, and the lower end of the spring is connected with the hot melt pad. Under the cooperation of the elastic member, the limit maximum air pressure of the utility model during normal operation is less than 3.0 kilopascals.

[0038] The top surface of the compression ring 4 is provided with a plurality of bosses 41, and the adjacent bosses 41 form air passages. In the embodiment, a plurality of bosses 41 are distributed in a circular array with the center of the compression ring 4 as the reference. When the cover body 5 is assembled to the valve core 2, the bosses 41 can be in contact with the cover body 5, so as to ensure that the waterproof and breathable membrane 3 is compressed, and prevent the membrane from being greatly deformed to cause the micro-holes to be stretched.

[0039] The second inclined surface 22 is provided with a first groove 23, the first groove 23 is provided with a first sealing member 24, the first sealing member 24 and the first inclined surface 11 are in abutment, in the normal state, the valve core 2 is closed under the action of the elastic force of the elastic member 6, the first sealing member 24 is extruded and tightly connected with the first inclined surface 11, so as to ensure the sealing property.

[0040] The top surface of the valve core 2 is provided with a connecting table 26 around the edge, and the waterproof and breathable membrane 3 is connected to the connecting table 26. In the embodiment, the connecting table 26 protrudes from the second inclined surface 22, and the lower end of the side wall of the cover body 5 is buckled into the bottom surface of the connecting table 26, so as to ensure the close connection between the cover body 5 and the valve core 2, and avoid the falling-off.

[0041] The top surface of the connecting table 26 is provided with a second groove 27, and the second groove 27 can be filled with sealant, so as to ensure that the waterproof and breathable membrane 3 can be closely connected to the valve core 2.

[0042] The exhaust holes 51 are a plurality of, a plurality of exhaust holes 51 are distributed in a circumferential array on the side wall of the cover body 5 with the center of the cover body 5 as the reference, the number of the exhaust holes 51 is at least the same as the number of the air passages, and in the embodiment, the exhaust holes 51 and the air passages are one-to-one corresponding.

[0043] The valve body 1 comprises a valve head section 13 and a threaded section 14 connected to the bottom of the valve head section 13, which can be connected with a device such as a battery. The bottom surface of the valve head section 13 is provided with a receiving groove 15 around the outer periphery of the threaded section 14, and the receiving groove 15 is provided with a second sealing member 16.

[0044] The top surface of the valve core 2 is provided with a plurality of support strips 28, the top of the support strips 28 being in contact with the waterproof air permeable membrane 3.

[0045] In the description of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0046] In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0047] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] Although the description of the present application is combined with the above specific embodiments, it is obvious that many substitutions, modifications and changes can be made by those skilled in the art according to the above content. Therefore, all such alternatives, improvements and changes are included in the scope of the appended claims.

Claims

1. A waterproof and explosion-proof valve with a self-imitating umbrella valve, characterized in that, The valve body, the valve core arranged in the valve body, the waterproof and breathable membrane arranged on the valve core, the compression ring arranged on the waterproof and breathable membrane, and the cover connected to the top of the valve body, the cover surrounds the compression ring and the waterproof and breathable membrane, and the cover has a gap between the cover and the inner wall of the valve body, and the cover is provided with exhaust holes; the valve core is connected with the valve body through an elastic member; the valve core is provided with a breathable channel corresponding to the position of the waterproof and breathable membrane; the inner wall of the valve body is provided with a first inclined surface, and the outer wall of the valve core is provided with a second inclined surface matched with the first inclined surface; the top surface of the compression ring is provided with a plurality of bosses, and the adjacent bosses form an air outlet.

2. The inner riveting pseudo-umbrella valve waterproof, breathable and explosion-proof valve according to claim 1, characterized in that, The second inclined surface is provided with a first groove, and the first groove is provided with a first sealing member, and the first sealing member and the first inclined surface are in abutment.

3. The inner riveting pseudo-umbrella valve waterproof and air-permeable explosion-proof valve according to claim 2, characterized in that, The inner wall of the valve body is provided with a connecting frame, the valve core has a connecting rod, the connecting rod is movably connected with the connecting frame, and the breathable channel penetrates through the connecting rod; one end of the elastic member is connected with the connecting frame, and the other end of the elastic member is connected with the connecting rod.

4. The inner riveted pseudo-umbrella valve waterproof and air-permeable explosion-proof valve according to claim 1, characterized in that, The top surface of the valve core is provided with a connecting table around the edge, and the waterproof and breathable membrane is connected to the connecting table.

5. The inner riveted pseudo-umbrella valve waterproof and air-permeable explosion-proof valve according to claim 4, characterized in that, The top surface of the connecting table is provided with a second groove.

6. The internally riveted pseudo-umbrella valve waterproof and air-permeable explosion-proof valve according to claim 1, characterized in that, A plurality of bosses are circularly arranged around the center of the compression ring.

7. The inner riveted pseudo-umbrella valve waterproof and air-permeable explosion-proof valve according to claim 1, characterized in that, The exhaust holes are arranged in a circumferential array on the side wall of the cover.

8. The internally riveted pseudo-umbrella valve waterproof and air-permeable explosion-proof valve according to claim 6, characterized in that, The valve body includes a valve head section and a threaded section connected to the bottom of the valve head section, and a receiving groove is arranged around the outer periphery of the threaded section on the bottom surface of the valve head section, and a second sealing member is arranged in the receiving groove.

9. The internally riveted pseudo-umbrella valve waterproof and air-permeable explosion-proof valve according to claim 1, characterized in that, The top surface of the valve core is provided with a plurality of support strips.

10. The internally riveted pseudo-umbrella valve waterproof and air-permeable explosion-proof valve according to claim 1, characterized in that, The cover is connected to the valve body by rolling.

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