CN213145504U

CN213145504U - Waterproof ventilative admission valve

Info

Publication number: CN213145504U
Application number: CN202021853421.6U
Authority: CN
Inventors: 唐凯; 袁国祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-05-07
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a waterproof ventilative admission valve, it includes valve body (5), valve gap (7) and waterproof ventilated membrane (6), wherein: the valve is characterized in that an air inlet hole (9) is formed in the side portion of the valve cover (7), an air outlet hole (1) is formed in the valve body (5), a one-way valve core (3) which can be conducted from the air inlet hole (9) to the air outlet hole (1) in one way is arranged in the valve body (5), and the waterproof breathable film (6) is arranged between the one-way valve core (3) and the air inlet hole (9). The waterproof breathable air inlet valve is simple in structure and easy to manufacture.

Description

Waterproof ventilative admission valve

Technical Field

The utility model relates to a waterproof ventilation valve specifically is a waterproof ventilative admission valve.

Background

At present, the waterproof ventilation valve only comprises a two-way valve and an exhaust valve, and the two-way valve and the exhaust valve cannot realize the one-way control of waterproof air inlet.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a waterproof ventilative admission valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a waterproof ventilative admission valve, its includes valve body, valve gap and waterproof ventilated membrane, wherein: the valve comprises a valve cover and is characterized in that an air inlet is formed in the side portion of the valve cover, an air outlet is formed in the valve body, a one-way valve core capable of conducting in one way from the air inlet to the air outlet is arranged in the valve body, and the waterproof breathable film is arranged between the one-way valve core and the air inlet.

Preferably, the waterproof breathable air inlet valve further comprises a sheath, and the sheath is arranged outside the valve cover and corresponds to the air inlet hole to form a blocking part.

Preferably, the blocking portion of the sheath further extends to the outside of the valve body, forming an air gap with the side of the valve body.

Preferably, the sheath is a silica gel sheath or a soft rubber sheath.

Preferably, the air outlet is provided with a step part, the one-way valve core is arranged in the air outlet and is fixed in the air outlet through the matching of the plug and the step part.

Preferably, the waterproof breathable film is arranged at the end part, corresponding to the valve cover, of the valve body.

Preferably, the one-way valve core is a silica gel duckbill valve.

Preferably, the one-way valve core comprises a movable valve plate, a spring and a sealing ring, the sealing ring is mounted at the step part, the movable valve plate is mounted between the sealing ring and the plug and is tightly pressed by the spring on the sealing ring, and an air channel is arranged on the movable valve plate corresponding to the outer side of the sealing ring.

Preferably, the sealing ring is a single-lip sealing ring, and the air passage on the movable valve plate is a notch arranged at the edge of the movable valve plate.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

the waterproof breathable air inlet valve is simple in structure and easy to manufacture.

Drawings

FIG. 1 is a schematic view of a first embodiment of a waterproof, breathable air admission valve;

FIG. 2 is a schematic view of a second embodiment of a waterproof, breathable air admission valve;

FIG. 3 is a schematic view of an air passage on a movable flap;

reference numerals:

1. an air outlet; 2. a plug; 3. a one-way valve core; 4. a step portion; 5. a valve body; 6. a waterproof breathable film; 7. a valve cover; 8. a sheath; 9. an air inlet; 10. a blocking portion; 11. an air gap; 3-1, a spring; 3-2, a movable valve plate; 3-3, sealing rings; 3-2-1, airway.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The first embodiment:

please refer to fig. 1, this waterproof ventilative admission valve includes valve body 5, valve gap 7, waterproof ventilated membrane 6, check valve core 3 adopts the silica gel duckbill valve, the lateral part of valve gap 7 sets up a plurality of inlet ports 9, and valve body 5 sets up venthole 1, is equipped with step portion 4 in the venthole 1, and the silica gel duckbill valve is arranged in venthole 1, fixes a position and fixes the silica gel duckbill valve in valve body 5 through end cap 2 and the cooperation of step portion 4, and check valve core 3 can follow inlet port 9 to venthole 1 one-way conduction, waterproof ventilated membrane 6 installs in the upper end of valve body 5, installs the tip corresponding with valve gap 7 promptly. The one end that corresponds venthole 1 of valve body 5 is equipped with the external screw thread, can install this waterproof ventilative admission valve to equipment through this external screw thread.

During the application, with this waterproof ventilative admission valve installation to equipment on, when the pressure in the equipment is less than ambient pressure, inside and outside pressure difference makes the silica gel duckbill valve switch on, and air in the environment is in proper order through inlet port 9, waterproof ventilated membrane 6, silica gel duckbill valve, the 1 entering equipment of venthole of this waterproof ventilative admission valve, makes the inside and outside pressure of equipment equal. Wherein, waterproof ventilated membrane 6 prevents that water from passing through, prevents that water from getting into equipment, and the gas in the silica gel duckbill valve prevents the equipment flows outward.

Further, the waterproof ventilative admission valve of this embodiment still includes sheath 8, 8 covers of sheath are established in the outside of valve gap 7, with valve gap 7 block, and sheath 8 corresponds inlet port 9 forms stop part 10, can prevent that water and debris from getting into in the valve body 5 through inlet port 9. Furthermore, the blocking part 10 of the sheath 8 extends to the outer side of the valve body 5, and an air gap 11 is formed between the blocking part and the side part of the valve body 5, so that air can enter the air inlet hole 9 through the air gap 11, and other impurities cannot enter the air inlet hole, and the protective effect is better. The material of the sheath 8 is preferably silica gel or soft rubber, and the function of collision prevention can be achieved.

Second embodiment:

referring to fig. 2, the waterproof breathable air inlet valve comprises a valve body 5, a valve cover 7, a waterproof breathable film 6 and a one-way valve core 3, wherein the one-way valve core 3 comprises a movable valve plate 3-2, a spring 3-1 and a sealing ring 3-3. The lateral part of the valve cover 7 is provided with a plurality of air inlets 9, the valve body 5 is provided with an air outlet 1, a step part 4 is arranged in the air outlet 1, the one-way valve core 3 is positioned and fixed in the valve body 5 through the cooperation of the plug 2 and the step part 4, specifically, the sealing ring 3-3 is embedded in the step part 4, the movable valve plate 3-2 is arranged between the sealing ring 3-3 and the plug 2 and is tightly pressed on the sealing ring 3-3 by the spring 3-1, the outer side of the movable valve plate 3-2 corresponding to the sealing ring 3-3 is provided with an air passage 3-2-1 (see figure 3), and the one-way valve core 3 can be conducted to the air outlet 1 from the air inlets. The waterproof and breathable membrane 6 is mounted at the upper end of the valve body 5, i.e. at the end corresponding to the valve cover 7. The one end that corresponds venthole 1 of valve body 5 is equipped with the external screw thread, can install this waterproof ventilative admission valve to equipment through this external screw thread.

When the waterproof breathable air inlet valve is applied, the waterproof breathable air inlet valve is installed on equipment, when the pressure in the equipment is smaller than the ambient pressure, the internal pressure and the external pressure difference enable the movable valve plate 3-2 to overcome the pressure of the spring 3-1 to move downwards and separate from the sealing ring 3-3, and air in the environment sequentially enters the equipment through the air inlet hole 9 of the waterproof breathable air inlet valve, the waterproof breathable film 6, the gap between the sealing ring 3-3 and the movable valve plate 3-2, the air passage 3-2-1 on the movable valve plate 3-2 and the air outlet hole 1, so that the internal pressure and the external pressure of the equipment are equal. Wherein, waterproof ventilated membrane 6 prevents water to pass through, prevents that water from getting into equipment, and check valve core 3 prevents the gaseous outflow in the equipment.

Further, the waterproof breathable air inlet valve of the second embodiment further comprises a sheath 8, the sheath 8 is sleeved outside the valve cover 7 and is matched with the valve cover 7 in a clamping mode, the sheath 8 corresponds to the air inlet hole 9 to form a blocking portion 10, and water and sundries can be prevented from entering the valve body 5 through the air inlet hole 9. Furthermore, the blocking part 10 of the sheath 8 extends to the outer side of the valve body 5, and an air gap 11 is formed between the blocking part and the side part of the valve body 5, so that air can enter the air inlet hole 9 through the air gap 11, and other impurities cannot enter the air inlet hole, and the protective effect is better. The material of the sheath 8 is preferably silica gel or soft rubber, and the function of collision prevention can be achieved.

With further reference to fig. 2 and 3, the seal ring 3-3 is a single-lip seal ring 3-3, and the air channel 3-2-1 on the valve plate is a notch arranged at the edge of the movable valve plate 3-2. This design is favorable to the miniaturization of this waterproof ventilative admission valve.

The present invention has been described in detail with reference to the specific embodiments, and the detailed description is only for assisting the skilled person in understanding the content of the present invention, and can not be understood as the limitation of the protection scope of the present invention. Various decorations, equivalent changes and the like which are performed on the scheme by the technical personnel in the field under the conception of the invention are all included in the protection scope of the invention.

Claims

1. The utility model provides a waterproof ventilative admission valve, includes valve body (5), valve gap (7) and waterproof ventilated membrane (6), its characterized in that: the valve is characterized in that an air inlet hole (9) is formed in the side portion of the valve cover (7), an air outlet hole (1) is formed in the valve body (5), a one-way valve core (3) which can be conducted from the air inlet hole (9) to the air outlet hole (1) in one way is arranged in the valve body (5), and the waterproof breathable film (6) is arranged between the one-way valve core (3) and the air inlet hole (9).

2. The waterproof, breathable air inlet valve according to claim 1, characterized in that: the valve cover is characterized by further comprising a sheath (8), wherein the sheath (8) is arranged outside the valve cover (7) and corresponds to the air inlet hole (9) to form a blocking part (10).

3. The waterproof, breathable air inlet valve according to claim 2, characterized in that: the blocking part (10) of the sheath (8) also extends to the outside of the valve body (5) and forms an air gap (11) with the side of the valve body (5).

4. The waterproof, breathable air inlet valve according to claim 2, characterized in that: the sheath (8) is a silica gel sheath (8) or a soft rubber sheath (8).

5. The waterproof, breathable air inlet valve according to claim 1, characterized in that: the air outlet (1) is provided with a step part (4), the one-way valve core (3) is arranged in the air outlet (1) and is matched and fixed in the air outlet (1) through the plug (2) and the step part (4).

6. The waterproof, breathable air inlet valve according to claim 5, characterized in that: the waterproof breathable film (6) is arranged at the end part of the valve body (5) corresponding to the valve cover (7).

7. The waterproof, breathable air inlet valve according to claim 5, characterized in that: the one-way valve core (3) is a silica gel duckbill valve.

8. The waterproof, breathable air inlet valve according to claim 5, characterized in that: the one-way valve core (3) comprises a movable valve plate (3-2), a spring (3-1) and a sealing ring (3-3), the sealing ring (3-3) is installed on the step portion (4), the movable valve plate (3-2) is installed between the sealing ring (3-3) and the plug (2) and is tightly pressed on the sealing ring (3-3) by the spring (3-1), and an air channel (3-2-1) is arranged on the movable valve plate (3-2) corresponding to the outer side of the sealing ring (3-3).

9. The waterproof, breathable air inlet valve according to claim 8, characterized in that: the sealing ring (3-3) is a single-lip sealing ring (3-3), and the air passage (3-2-1) on the movable valve plate (3-2) is a notch arranged at the edge of the movable valve plate (3-2).