CN219082356U

CN219082356U - Waterproof ventilation valve

Info

Publication number: CN219082356U
Application number: CN202223508291.4U
Authority: CN
Inventors: 杨智宏
Original assignee: Chengdu Zhongdai Chuang Technology Co ltd
Current assignee: Chengdu Zhongdai Chuang Technology Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-26
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of ventilation valves and discloses a waterproof ventilation valve which comprises a valve body, wherein threads are arranged on the outer wall of the valve body, a ventilation cavity is formed in the valve body, the ventilation cavity is a countersunk through hole, the threads are positioned on the outer wall of the small end of the ventilation cavity, a waterproof ventilation structure is arranged in the cavity of the large end of the ventilation cavity, a valve cover is tightly matched with the large end port of the countersunk through hole, the valve cover is tightly pressed on the waterproof ventilation structure, a straight slot is formed in the center of the valve cover, a pair of notches are further formed in the valve cover, the notches are respectively positioned on two sides of the straight slot, a pair of limiting blocks are integrally formed on the inner wall of the cavity of the large end of the ventilation cavity, and the limiting blocks are respectively clamped in the corresponding notches. The beneficial effects of the utility model are as follows: the valve body is screwed into the cabinet body through the matching of the straight screwdriver and the straight groove, so that the interference of other parts on the side wall of the cabinet body is avoided, and the valve body is convenient to assemble, disassemble and replace.

Description

Waterproof ventilation valve

Technical Field

The utility model relates to the technical field of ventilation valves, in particular to a waterproof ventilation valve.

Background

In order to prevent corrosion, a plurality of cavities or cabinets are all designed in a full-sealed mode, so that the air pressure in the cavities (or cabinets) is inconsistent with the air pressure outside the cavities (or cabinets), the airtight air in the cavities expands when encountering heat and contracts when encountering cold, IP protection is disabled repeatedly for a long time, the device is damaged, the reliability is reduced, and the service life of a product is greatly influenced.

In order to solve the problems, a waterproof ventilation valve is added to the structural design of the cavity (or the cabinet), so that air in the cavity and air outside the cavity are mutually opposite, the air pressure in the cavity is consistent with the air pressure outside the cavity, and the reliability of a product is ensured. Meanwhile, due to the special performance of the waterproof air-permeable valve, moisture, dust, salt fog particles and the like can be effectively prevented from entering the cavity, and the anti-corrosion performance of the product is ensured.

The Chinese patent (issued publication number: CN215214925U name: waterproof and breathable valve) comprises a cap body, wherein the lower end of the cap body is fixedly connected with a mounting body, a breathable groove is commonly arranged between the mounting body and the cap body, a plurality of waterproof cavities are arranged in the cap body and are communicated with the breathable groove through internal through holes, the waterproof cavities are communicated with the outside through external communication holes, and waterproof pieces are hermetically and slidably connected in the waterproof cavities. The utility model has better waterproof effect and good air permeability, when the utility model is installed, the wrench is clamped on the cap body to be screwed in, and other parts are arranged on the side wall of some cabinets, so that interference is caused when the wrench is clamped on the cap body to be screwed, and the valve body is inconvenient to assemble, disassemble and replace.

Disclosure of Invention

The utility model aims to provide a waterproof ventilation valve, which overcomes the defects of the prior art.

The aim of the utility model is achieved by the following technical scheme: the utility model provides a waterproof ventilative valve, includes the valve body, be provided with the screw thread on the valve body outer wall, set up the ventilation chamber on the valve body, the ventilation chamber is the countersunk through-hole, the screw thread is located on the outer wall of the tip of ventilation chamber, be provided with waterproof ventilative structure in the cavity of the big end of ventilation chamber, the valve gap is installed to tight fit in the big end port of countersunk through-hole, the valve gap sticiss on the waterproof ventilative structure, a word groove has been seted up to the center department of valve gap, a pair of breach has still been seted up on the valve gap, a pair of breach is located respectively the both sides of word groove, integrated into one piece has a pair of stopper on the cavity inner wall of the big end of ventilation chamber, a pair of stopper card respectively in the breach that corresponds.

Preferably, the waterproof ventilation structure comprises ventilation holes, a waterproof ventilation film and a film pressing pipe, wherein the ventilation holes are formed in the cavity wall of the large end of the ventilation cavity, the waterproof ventilation film covers the bottom of the cavity of the large end of the ventilation cavity, the film pressing pipe is tightly pressed on the waterproof ventilation film through the valve cover, the film pressing pipe and the countersunk through hole are coaxial, a dustproof through hole is formed in the pipe wall of the film pressing pipe, and the diameter of the dustproof through hole is smaller than that of the ventilation hole.

Preferably, the outer diameter of the big end of the ventilation cavity is larger than that of the small end of the ventilation cavity, an annular groove is formed in the outer wall of the small end of the ventilation cavity close to the big end of the ventilation cavity, the center of the annular groove is located on the axis of the ventilation cavity, and a rubber ring is arranged in the annular groove.

Preferably, an annular bulge is arranged at the bottom of the large end of the ventilation cavity, the center of the annular bulge is positioned on the axis of the ventilation cavity, and the waterproof breathable film is clamped into the film pressing pipe through the annular bulge.

Preferably, the valve cover is provided with a through hole, and the through hole is positioned at the outer side of the film pressing pipe.

Preferably, the number of the ventilation holes is not less than three and is uniformly distributed around the axial lead of the countersunk through holes, the dustproof through holes are in a plurality of groups and are respectively distributed along the axial lead direction of the film pressing pipe, and the dustproof through holes in each group are circumferentially distributed around the film pressing pipe.

Compared with the prior art, the utility model has the beneficial effects that:

the valve body is screwed into the cabinet body through the matching of the straight screwdriver and the straight groove, so that the interference of other parts on the side wall of the cabinet body is avoided, and the valve body is convenient to assemble, disassemble and replace.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;

FIG. 3 is an enlarged partial schematic view at B in FIG. 2;

in the figure, a valve body 1, a ventilation cavity 2, a valve cover 3, a straight groove 4, a 5-limiting block, a 6-ventilation hole 7-waterproof ventilation film, a 8-film pressing pipe 9-dustproof through holes, a 10-annular groove, a 11-rubber ring, a 12-annular bulge and a 13-through hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, a waterproof ventilation valve comprises a valve body 1, wherein threads are arranged on the outer wall of the valve body 1, a ventilation cavity 2 is formed in the valve body 1, the ventilation cavity 2 is a countersunk through hole, the threads are positioned on the outer wall of the small end of the ventilation cavity 2, a waterproof ventilation structure is arranged in the cavity of the large end of the ventilation cavity 2, a valve cover 3 is tightly matched with the large end port of the countersunk through hole, the valve cover 3 is tightly pressed on the waterproof ventilation structure, a straight slot 4 is formed in the center of the valve cover 3, a pair of gaps are further formed in the valve cover 3, the gaps are respectively positioned on two sides of the straight slot 4, a pair of limiting blocks 5 are integrally formed in the inner wall of the cavity of the large end of the ventilation cavity 2, the valve body 1 is screwed into a cabinet body through the cooperation of the straight screwdriver and the straight slot 4, interference of other parts on the side wall of the cabinet body is avoided, and the valve body 1 is convenient to assemble, disassemble and replace.

In this embodiment, as shown in fig. 2, the waterproof ventilation structure includes ventilation holes 6, waterproof ventilation film 7 and film pressing tube 8, ventilation holes 6 are formed on the cavity wall of the big end of ventilation cavity 2, waterproof ventilation film 7 covers the bottom of the cavity of the big end of ventilation cavity 2, film pressing tube 8 is tightly pressed on waterproof ventilation film 7 through valve cover 3, the coaxial line of ventilation film 8 and countersunk through holes is formed on the tube wall of film pressing tube 8, dustproof through holes 139 are formed on the tube wall of film pressing tube 8, the diameter of dustproof through holes 139 is smaller than the diameter of ventilation holes 6, the number of ventilation holes 6 is not less than three and evenly distributed around the axial line of countersunk through holes, dustproof through holes 139 are distributed in groups along the axial direction of film pressing tube 8, dust through holes 139 in each group are all distributed around the circumference of film pressing tube 8, ventilation valves are installed on the side wall of the cabinet body, rainwater dust and the like fall out from ventilation holes 6 above, the blocking of ventilation film 7 in the big end of ventilation cavity is avoided, and the service life is prolonged.

In this embodiment, as shown in fig. 2, the outer diameter of the large end of the ventilation cavity 2 is larger than the outer diameter of the small end of the ventilation cavity 2, an annular groove 10 is formed in the outer wall of the small end of the ventilation cavity 2 near the large end, the center of the annular groove 10 is located on the axis of the ventilation cavity 2, a rubber ring 11 is installed in the annular groove 10, and a gap between the valve body 1 and the cabinet body is sealed through the rubber ring 11, so that moisture is prevented from entering from the gap, and corrosion of devices in the cabinet body is avoided.

In this embodiment, as shown in fig. 3, an annular protrusion 12 is disposed at the bottom of the large end of the ventilation cavity 2, the center of the annular protrusion 12 is located on the axis of the ventilation cavity 2, the waterproof breathable film 7 is clamped into the film pressing pipe 8 through the annular protrusion 12, the film pressing pipe 8 is positioned through the annular protrusion 12, and dislocation of the film pressing pipe 8 and the small hole of the ventilation cavity 2 in the pressing process of the valve cover 3 is avoided, so that moisture enters the small hole to corrode devices in the cabinet body.

In this embodiment, as shown in fig. 1, the through hole 13 is formed in the valve cover 3, the through hole 13 is located at the outer side of the film pressing pipe 8, and the waterproof and breathable film 7 inside can be replaced by pulling the valve cover 3 open through the iron hook, so that the use cost of the valve body 1 is reduced.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a waterproof ventilative valve, includes valve body (1), be provided with screw thread on valve body (1) outer wall, its characterized in that: the novel valve is characterized in that the valve body (1) is provided with a ventilation cavity (2), the ventilation cavity (2) is a countersunk through hole, threads are located on the outer wall of the small end of the ventilation cavity (2), a waterproof ventilation structure is arranged in the cavity of the large end of the ventilation cavity (2), a valve cover (3) is tightly matched with the large end port of the countersunk through hole, the valve cover (3) is tightly pressed on the waterproof ventilation structure, a straight slot (4) is formed in the center of the valve cover (3), a pair of gaps are further formed in the valve cover (3), the gaps are respectively located on two sides of the straight slot (4), a pair of limiting blocks (5) are integrally formed in the inner wall of the cavity of the large end of the ventilation cavity (2), and the pair of limiting blocks (5) are respectively clamped in the corresponding gaps.

2. A waterproof and breathable valve according to claim 1, characterized in that: waterproof ventilative structure includes bleeder vent (6), waterproof ventilated membrane (7) and press mold tube (8), bleeder vent (6) are seted up on the chamber wall of the big end of ventilation chamber (2), waterproof ventilated membrane (7) cover the bottom of the cavity of the big end of ventilation chamber (2), press mold tube (8) pass through valve gap (3) sticis on waterproof ventilated membrane (7), press mold tube (8) with countersunk head through-hole coaxial core line, set up dustproof through-hole (9) on the pipe wall of press mold tube (8), the diameter of dustproof through-hole (9) is less than the diameter of bleeder vent (6).

3. A waterproof and breathable valve according to claim 1, characterized in that: the outer diameter of the big end of the ventilation cavity (2) is larger than the outer diameter of the small end of the ventilation cavity (2), an annular groove (10) is formed in the outer wall of the small end of the ventilation cavity (2) close to the big end of the ventilation cavity, the center of the annular groove (10) is located on the axis of the ventilation cavity (2), and a rubber ring (11) is arranged in the annular groove (10).

4. A waterproof and breathable valve according to claim 2, characterized in that: the bottom of the big end of the ventilation cavity (2) is provided with an annular bulge (12), the center of the annular bulge (12) is positioned on the axis of the ventilation cavity (2), and the waterproof ventilation membrane (7) is clamped into the membrane pressing tube (8) through the annular bulge (12).

5. A waterproof and breathable valve according to claim 2, characterized in that: the valve cover (3) is provided with a through hole (13), and the through hole (13) is positioned at the outer side of the film pressing pipe (8).

6. A waterproof and breathable valve according to claim 2, characterized in that: the number of the ventilation holes (6) is not less than three and is uniformly distributed around the axial lead of the countersunk through holes, the dustproof through holes (9) are in a plurality of groups and are respectively distributed along the axial lead direction of the film pressing pipe (8), and the dustproof through holes (9) in each group are circumferentially distributed around the film pressing pipe (8).