CN217482070U - Ventilation valve - Google Patents

Abstract

The embodiment of the application relates to the technical field of breathable accessories and discloses a breathable valve which comprises a main body, a breathable assembly, a film layer and an end cover assembly, wherein the main body is used for being connected with sealing equipment and is provided with a breathable channel; the ventilation assembly is arranged at one end of the air passage and used for opening or closing the air passage, the film layer is arranged at one end of the main body, which is far away from the sealing equipment, and the film layer is used for preventing water and dust and preventing salt mist particles from entering; the end cover assembly is arranged at one end, far away from the sealing device, of the main body, and covers the film layer, the film layer can be prevented from being exposed through the structure with the end cover assembly arranged at the other end of the main body, the end cover assembly can protect the film layer from being injured by external sharp objects on the premise that the air pressure effect in the cavity of the ventilation valve is not influenced, and the service life of the ventilation valve is effectively prolonged.

Description

Ventilation valve

Technical Field

The embodiment of the application relates to the technical field of breathable accessories, in particular to a breathable valve.

Background

Some devices with cavities are usually provided with vent valves, when the air pressure in the cavities of the devices changes, the vent valves can timely suck air or exhaust air to adjust the air pressure in the cavities of the devices to keep balance with the external air pressure, so that the devices are prevented from deforming, exploding and the like. The breather valve generally consists of a body, a breather membrane layer, and a barrier membrane sheet.

In the implementation process of the embodiment of the application, the inventor finds that: the barrier film piece of ventilative valve sets up the one end that is close to the cavity at the main part, and the one end of cavity is kept away from at the main part to ventilative rete directly exposes, is destroyed by external sharp-pointed object very easily, leads to ventilative valve's life-span short.

SUMMERY OF THE UTILITY MODEL

The main technical problem who solves of this application embodiment provides a breather valve, can avoid the rete to expose, does not influence the breather valve and realizes under the prerequisite of atmospheric pressure effect in the balanced cavity, and the end cover subassembly can protect the rete and suffer the injury of external sharp object, effectively prolongs breather valve's life.

In order to solve the above technical problem, one technical solution adopted in the embodiments of the present application is: providing a vent valve, wherein the vent valve comprises a main body, a vent assembly, a membrane layer and an end cover assembly, the main body is used for being connected with the sealing equipment, and the main body is provided with a vent channel; the ventilation assembly is arranged at one end of the air duct and is used for opening or closing the air duct; the film layer is arranged at one end of the main body, which is far away from the sealing equipment, and is used for preventing water and dust and preventing salt mist particles from entering the cavity; the end cover assembly is arranged at one end, far away from the sealing device, of the main body, and covers the film layer.

Optionally, the vent assembly includes a first press ring and a vent, the vent is provided with a pressing portion and a slit portion, the first press ring is used for pressing the pressing portion to the main body, and the slit portion is in a closed state.

Optionally, the inner wall of main part is equipped with first spacing boss and first fixed orifices, one side of the portion that compresses tightly with first spacing boss butt, the opposite side of the portion that compresses tightly with first clamping ring butt, first clamping ring is equipped with first fixed protruding, first fixed protruding peg graft in first fixed orifices.

Optionally, the end cap assembly includes a cap, the cap includes a body and a first extending portion, one end of the first extending portion is fixed to one surface of the body, the other end of the first extending portion is provided with a buckle tooth, the main body is provided with a buckle groove, the buckle tooth is connected with the buckle groove in a buckling manner, when the cap is closed with the main body, a gap exists between the cap and the main body, and the gap is used for gas to pass through.

Optionally, the first extension portion is provided with a second limit boss, the main body is provided with a notch, and the second limit boss is inserted into the notch.

Optionally, the cover further comprises a second extension, one end of the second extension is fixed on one surface of the body, and the second extension is used for crimping the film layer.

Optionally, the end cap assembly further includes a second press ring, the second press ring is disposed between the film layer and the second extension portion, and two sides of the second press ring are respectively abutted to the film layer and the second extension portion.

Optionally, the second pressing ring is provided with a third limiting boss, the main body is provided with a limiting groove, and the third limiting boss is clamped with the limiting groove.

Optionally, the main part is provided with a support frame, the support frame is arranged at the other end of the air duct, and the support frame is used for supporting the film layer.

Optionally, the ventilation valve further comprises a sealing member, the sealing member is sleeved on the main body, and the sealing member is used for sealing a gap at the joint of the main body and the sealing device.

The beneficial effects of the embodiment of the application are that: the ventilation valve comprises a main body, a ventilation assembly, a film layer and an end cover assembly, wherein the main body is used for being connected with sealing equipment and is provided with a ventilation channel; the ventilation assembly is arranged at one end of the air duct and is used for opening or closing the air duct; the film layer is arranged at one end of the main body, which is far away from the sealing equipment, and is used for preventing water and dust and preventing salt spray particles from entering the cavity; the end cover assembly is arranged at one end, far away from the sealing device, of the main body, and covers the film layer, the film layer can be prevented from being exposed through the structure with the end cover assembly arranged at the other end of the main body, the end cover assembly can protect the film layer from being injured by external sharp objects on the premise that the air pressure effect in the cavity of the ventilation valve is not influenced, and the service life of the ventilation valve is effectively prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic view of an application environment of a vent valve according to an embodiment of the present application.

Fig. 2 is an exploded view from a perspective of a vent valve according to an embodiment of the present application.

FIG. 3 is a schematic view of a perspective of the body of a vent valve according to embodiments of the present application.

Figure 4 is a cross-sectional view of another perspective of a vent valve according to embodiments of the present application.

Figure 5 is an exploded view from one perspective of a vent assembly of a vent valve according to embodiments of the present application.

Fig. 6 is a schematic view of a lid of a vent valve according to an embodiment of the present application.

Detailed Description

In order to facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured 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 be present. As used herein, the terms "upper," "lower," "inner," "outer," "vertical," "horizontal," and the like are used in an orientation or positional relationship indicated based on the orientation or positional relationship as shown in the drawings for convenience in describing the present application and simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus 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 relative importance.

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 in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1, the sealing device 200 is provided with a cavity 201 and an opening for communicating the cavity 201 with the outside, and the ventilation valve 100 is installed at the opening, so that the cavity 201 forms a sealed space. The sealing device 200 may be a sealing box, a battery, an electrical appliance housing, etc., and the ventilation valve 100 is used to balance the air pressure in the cavity 201 and prevent impurities outside the degassing body from entering the cavity 201.

Referring to fig. 2, the vent valve 100 includes a main body 10, a vent assembly 20, a membrane layer 30, and an end cap assembly 40. The ventilation assembly 20 is disposed at one end of the main body 10, the ventilation assembly 20 is used for conducting or sealing an air path of the main body 10 to adjust air pressure in the cavity 201, the film layer 30 is disposed at the other end of the main body 10, the film layer 30 is used for filtering air entering the cavity 201, the film layer 30 only allows air to enter the cavity 201, and other impurities are not allowed to enter the cavity 201. The end cap assembly 40 is disposed at the other end of the main body 10 and covers the film layer 30, the end cap assembly 40 is used for fixing the film layer 30 at the other end of the main body 10, so as to prevent the film layer 30 from being directly exposed to the outside, reduce the probability that an external sharp object damages the film layer 30, and prolong the service life of the ventilation valve 100.

In some embodiments, the film layer 30 is an e-PTFE (expanded polytetrafluoroethylene) film, and the film layer 30 has waterproof and air-permeable functions, so as to prevent external liquid water, oil, solid impurities, and the like from entering the cavity 201 through the film layer 30.

In some embodiments, the film layer 30 is attached to the body 10 by means of high temperature welding.

In some embodiments, with continued reference to fig. 2, the purge valve 100 further includes a sealing member 50, the sealing member 50 is disposed on an outer surface of the main body 10, and the sealing member 50 is used for sealing a gap between the main body 10 and the sealing device 200 to improve the sealing performance of the sealing device 200. The seal 50 may be an elastomeric rubber ring.

Referring to fig. 3 and 4, the main body 10 is provided with an air duct 11, a fastening groove 12, a notch 13, a limiting groove 14 and a supporting frame 15. The air duct 11 penetrates the main body 10 to communicate the cavity 201 with the outside, and the air duct 11 is used for air circulation. The number of the catching grooves 12 is plural, and the plural catching grooves 12 are provided around the main body 10, and the catching grooves 12 are used for catching with the end cap assembly 40 so that the end cap assembly 40 can be fixed to the other end of the main body 10, preventing the end cap assembly 40 from being detached from the main body 10 in the axial direction of the main body 10. The number of the notches 13 is also multiple, the notches 13 are arranged around the main body 10, and the notches 13 are used for the end cover assembly 40 to be inserted and connected, so that the end cover assembly 40 is prevented from rotating relative to the main body 10. The quantity of spacing groove 14 is a plurality of to a plurality of spacing grooves 14 encircle and set up in the other end of main part 10, and spacing groove 14 is used for supplying end cover assembly 40 to peg graft, prevents that end cover assembly 40 from rotating for main part 10. Support frame 15 sets up in the one end that cavity 201 was kept away from to air vent 11, and support frame 15 is used for supporting rete 30, prevents that the rete 30 atress that is located air vent 11 department is too big, the cracked condition appears.

Wherein, air duct 11 is equipped with first spacing boss 111 and first fixed orifices 112, and first spacing boss 111 and first fixed orifices 112 all are located the internal wall face of air duct 11, and first spacing boss 111 is used for with ventilation assembly 20 butt, prevents that ventilation assembly 20 from removing along the axial direction of air duct 11, and first fixed orifices 112 is used for being connected with ventilation assembly 20 cooperation to make ventilation assembly 20 be fixed in the one end of air duct 11.

It should be noted that the connection manner of the main body 10 and the sealing device 200 is not limited, and the connection manner may be a threaded connection, a clamping connection, a welding connection, and the like.

Referring to fig. 4 and 5, the vent assembly 20 is disposed at one end of the air duct 11, and the vent assembly 20 includes a first pressing ring 21 and a vent 22. The first press ring 21 is used for fixing the ventilation member 22 on the first limit boss 111 in the ventilation channel 11, the outer peripheral surface of the first press ring 21 is provided with a first fixing protrusion 211, and the first fixing protrusion 211 is inserted into the first fixing hole 112. The vent 22 is used to open or close the vent passage 11 to adjust the air pressure in the chamber 201. The vent 22 is shaped like a nipple and the vent 22 is made of a flexible material. The vent 22 includes a pressing portion 221 and a slit portion 222, and when the first fixing protrusion 211 is fastened to the first fixing hole 112, two sides of the pressing portion 221 are respectively abutted against the first limiting boss 111 and the first press ring 21, so as to fix the pressing portion 221 to the first limiting boss 111. The slit part 222 is provided with a cross slit, and in a natural state, that is, when the air pressure of the cavity 201 is balanced with the external air pressure, the slit part 222 is in a closed state, and at the moment, the air duct 11 is in a closed state, so that water vapor in the external environment can be prevented or controlled from entering the cavity 201, and a moisture blocking effect is effectively achieved. When the air pressure in the cavity 201 and the external air pressure have a pressure difference, the air pushes the cross-shaped seam to suck air or exhaust air under the action of the pressure difference, so that the air pressure in the cavity 201 and the external air pressure reach a balanced state again, and when the ventilation valve 100 is in the air suction state, the external air is filtered by the film layer 30 and enters the cavity 201 through the ventilation channel 11 and the slit part 222, so that impurities in the air flow can be effectively reduced.

With respect to the end cap assembly 40 described above, referring to fig. 1 and 6, the end cap assembly 40 includes a cover 41 and a second compression ring 42. The cover 41 is disposed at the other end of the main body 10, and the cover 41 is used for covering the film 30 to prevent the film 30 from being exposed to the outside, so as to protect the film 30. The second press ring 42 is disposed between the film 30 and the cover 41, and the second press ring 42 is used for pressing the film 30 to the other end of the main body 10, so as to enhance the air tightness between the film 30 and the main body 10. When the cover 41 is coupled to the other end of the main body 10, a gap 414 exists between the cover 41 and the main body 10, and external gas may enter the chamber 201 through the gap 414, or gas in the chamber 201 may be discharged to the outside through the gap 414.

The cover 41 includes a body 411, a first extension part 412 and a second extension part 413, one end of the first extension part 412 is fixed to one surface of the body 411, and the other end of the first extension part 412 is used for connecting with the main body 10 to fix the body 411 to the other end of the main body 10. One end of the second extension 413 is fixed to one surface of the body 411, and the other end of the second extension 413 is used for abutting against the second pressing ring 42, so as to provide acting force for the second pressing ring 42 to press the film 30.

The first extending portion 412 is provided with a buckle tooth 4121 and a second limit boss 4122, the buckle tooth 4121 is located at the other end of the first extending portion 412, and the buckle tooth 4121 is used for being buckled with the buckle groove 12 to fix the cover 41 to the other end of the main body 10, so as to prevent the cover 41 from being separated from the main body 10 along the axial direction of the main body 10. The second limit boss 4122 is located at the connection position of the first extension part 412 and the body 411, and the second limit boss 4122 is inserted into the notch 13 to prevent the cover 41 from rotating relative to the main body 10.

The number of the first extending portions 412 corresponds to the number of the catching grooves 12, and when the number of the first extending portions 412 is plural, the first extending portions 412 are disposed around a surface of the body 411 at intervals. When the number of the second extending portions 413 is plural, the second extending portions 413 are disposed around a surface of the body 411 at intervals. The first extension part 412 and the second extension part 413 are both located on the same surface of the body 411.

The second clamping ring 42 is provided with a third limiting boss 421, the third limiting boss 421 is inserted into the limiting groove 14, so that the second clamping ring 42 can be quickly positioned in the installation process, the third limiting boss 421 can prevent the second clamping ring 42 from rotating relative to the main body 10, and the pressing effect of the second clamping ring 42 on the film layer 30 is improved.

In some embodiments, with continued reference to fig. 3, the main body 10 further has a counterbore 16, the second compression ring 42 can be directly pressed against the film 30 by two-shot molding, and the counterbore 16 has a function of reducing glue, so as to prevent the second compression ring 42 from shrinking after molding and affecting assembly.

The ventilation valve 100 comprises a main body 10, a ventilation assembly 20, a membrane layer 30 and an end cover assembly 40, wherein the main body 10 is used for connecting with the sealing device 200, and the main body 10 is provided with a ventilation channel 11; the vent assembly 20 is disposed at one end of the air duct 11, and the vent assembly 20 is used for opening or closing the air duct 11; the membrane layer 30 is disposed at an end of the main body 10 away from the sealing apparatus 200, and the membrane layer 30 is used for filtering gas; the end cover assembly 40 is arranged at one end of the main body 10 far away from the sealing device 200, the end cover assembly 40 covers the film layer 30, the structure that the end cover assembly 40 is arranged at the other end of the main body 10 can prevent the film layer 30 from being exposed, the end cover assembly 40 can protect the film layer 30 from being injured by external sharp objects on the premise that the ventilation valve 100 is not influenced to realize the air pressure action in the balance cavity 201, and the service life of the ventilation valve 100 is effectively prolonged.

The above description is only an example of the present application, and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes performed by the present application and the contents of the attached drawings, which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. The utility model provides a breather valve is applied to sealing device, sealing device be equipped with the cavity and with the opening of cavity intercommunication, breather valve set up in the opening, its characterized in that, breather valve includes:

the main body is used for being connected with the sealing equipment and is provided with an air duct;

the ventilation assembly is arranged at one end of the air duct and is used for opening or closing the air duct;

the film layer is arranged at one end of the main body, which is far away from the sealing equipment, and is used for preventing water and dust and preventing salt mist particles from entering the cavity;

the end cover assembly is arranged at one end, far away from the sealing device, of the main body, and covers the film layer.

2. The breather valve of claim 1,

the ventilation assembly comprises a first pressing ring and a ventilation piece, the ventilation piece is provided with a pressing part and a slit part, the pressing part is pressed on the main body through the first pressing ring, and the slit part is in a closed state.

3. The breather valve of claim 2,

the inner wall of main part is equipped with first spacing boss and first fixed orifices, one side of the portion that compresses tightly with first spacing boss butt, the opposite side of the portion that compresses tightly with first clamping ring butt, first clamping ring is equipped with first fixed bulge, first fixed bulge peg graft in first fixed orifices.

4. The breather valve of claim 1,

the end cover assembly comprises a cover, the cover comprises a body and a first extending portion, one end of the first extending portion is fixed to one surface of the body, the other end of the first extending portion is provided with a buckle tooth, the main body is provided with a buckle groove, the buckle tooth is connected with the buckle groove in a buckling mode, when the cover is covered with the main body, a gap exists between the cover and the main body, and the gap is used for air to pass through.

5. The breather valve of claim 4,

the first extension part is provided with a second limiting boss, the main body is provided with a notch, and the second limiting boss is inserted into the notch.

6. The breather valve of claim 4,

the cover further comprises a second extension, one end of the second extension is fixed on one surface of the body, and the second extension is used for being in compression joint with the film.

7. The breather valve of claim 6,

the end cover assembly further comprises a second pressing ring, the second pressing ring is arranged between the film layer and the second extending portion, and the two sides of the second pressing ring are respectively abutted against the film layer and the second extending portion.

8. The breather valve of claim 7,

the second clamping ring is provided with a third limiting boss, the main body is provided with a limiting groove, and the third limiting boss is connected with the limiting groove in a clamped mode.

9. The venting valve of claim 1,

the main part is equipped with the support frame, the support frame set up in the other end of air vent, the support frame is used for supporting the rete.

10. The breather valve of claim 1,

the ventilation valve further comprises a sealing piece, the sealing piece is sleeved on the main body, and the sealing piece is used for sealing a gap at the joint of the main body and the sealing equipment.

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