CN216743021U

CN216743021U - Water inlet ventilation release valve

Info

Publication number: CN216743021U
Application number: CN202123445313.2U
Authority: CN
Inventors: 冷江南; 薛兴旺; 张龙; 李树军; 朱春华; 张云逸; 武宇峰
Original assignee: Ningbo Luhai Special Equipment Technology Co ltd
Current assignee: Ningbo Luhai Special Equipment Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-14
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to a water inlet ventilation release valve, which comprises a valve shell, a pressing plate, a pressure film, a supporting plate and an elastic support, wherein the ventilation water inlet valve also comprises a first ventilation water inlet and a second ventilation water inlet, the first ventilation water inlet is positioned in the middle of the pressing plate and penetrates through the pressing plate, the number of the second ventilation water inlets is not less than two, the first ventilation water inlets are uniformly distributed around the first ventilation water inlet, the middle of the valve shell is provided with a boss, the elastic support is of a hollow structure, the elastic support is sleeved on the boss, the supporting plate is of a gyro structure with two small ends and a convex middle part, the upper end of the supporting plate is sleeved in the elastic support, the supporting plate and the valve shell are connected and supported through the elastic support, the pressure film is placed on the lower surface of the supporting plate and is pressed after being penetrated by a lower column of the supporting plate, and the pressing plate is arranged on the lower surface of the pressure film and is fastened with the valve shell.

Description

Water inlet ventilation release valve

Technical Field

The utility model relates to the field of water surface equipment, in particular to a novel water inlet ventilation release valve.

Background

The existing air-permeable release valve is generally used for high-pressure equipment, the internal pressure and the external pressure of the equipment are balanced under special conditions, the size is large, the structure is complex, most of the existing air-permeable release valves are used for balancing air pressure, and the existing air-permeable release valves are rarely adapted to structures in two media.

Disclosure of Invention

In order to solve the problems, the utility model provides the water inlet ventilation release valve which is simple in structure, has an underwater automatic release function and can simultaneously bear the water inlet and ventilation functions.

In order to achieve the purpose, the air-permeable water inlet valve comprises a valve shell, a pressing plate, a pressure film, a supporting plate and an elastic support, and further comprises a first air-permeable water inlet and a second air-permeable water inlet, wherein the first air-permeable water inlet is positioned in the middle of the pressing plate and penetrates through the pressing plate, the first air-permeable water inlet is connected with and communicated with the top of the upper raft shell, and the number of the second air-permeable water inlets is not less than two and is uniformly distributed around the first air-permeable water inlet; a boss is arranged in the middle of the valve shell, the elastic support is of a hollow structure, and the elastic support is sleeved on the boss; the supporting plate is of a gyro structure with two small ends and a convex middle part, the upper end of the supporting plate is sleeved in the elastic support, and the supporting plate is connected with the valve shell through the elastic support and is supported; the pressure film is placed on the lower surface of the supporting plate and is tightly pressed after being penetrated by the lower column of the supporting plate; the pressing plate is arranged on the lower surface of the pressure film and is fastened with the valve shell. The principle of this structure is, the release valve that permeates water of admitting air is fixed on corresponding surface of water equipment, its first ventilative mouthful communicates with each other with surface of water equipment is inside, under the normal condition, the backup pad in the valve casing is pressing the pressure film and is being close to the clamp plate under elastic support pressure, the ventilative water inlet of second has been sealed, when the ventilative release valve that admits water gets into aquatic, the pressure extrusion of aquatic is intaking from the ventilative mouthful of second after the pressure film takes place the deformation, then first ventilative mouthful of flowing through, flow into surface of water equipment from the opening direction of valve casing. It is necessary to supplement that the water inlet ventilation release valve is connected with the water surface equipment to form a two-way valve structure, only when the internal and external pressures of the raft shell are unbalanced and the pressure is greater than the pressure of the elastic support, the gas or liquid can move from high pressure to low pressure,

the further proposal is that the valve casing is of a cup-shaped structure, and the depth is 50-95% of the height of the elastic support. Namely, the elastic support is in a compressed state in the water inlet air-permeable release valve. The opening and closing threshold of the immersed breathable water inlet valve is controlled by controlling the compression elasticity of the elastic support, so that the immersed breathable water inlet valve is suitable for different use environments.

In a further aspect, the support plate has a maximum outer dimension that is less than an inner dimension of the valve housing. The purpose of this design is that the backup pad can realize the displacement in the valve casing is inside, and then drives the pressure membrane takes place the displacement.

In a further aspect, the resilient support is preferably a spring, a bellows, or a leaf spring. The selected material has simple structure and low cost, and the standardized elastic support can adjust the depth of water flowing into the water of the first breathable opening after the water inlet breathable release valve enters the water by changing the elastic standard of the elastic support.

The water inlet ventilation release valve designed by the utility model is usually installed on ship equipment, when an emergency sinking accident occurs to a ship, the water inlet ventilation release valve is sunk into water, when the water reaches a certain depth, the pressure in the water is greater than the elastic elasticity in the release valve, so that water enters the ship equipment where the release valve is installed from a ventilation port on the valve, and an emergency barrier reporting mechanism is triggered. The utility model discloses this utility model structure is simple, and the cost has been practiced thrift to the function that uses simple structure to realize automatic release under water.

Drawings

FIG. 1 is a front view of embodiment 1;

FIG. 2 is a sectional view of embodiment 1;

fig. 3 is a bottom view of embodiment 1.

21-valve casing, 22-pressing plate, 23-pressure film, 24-supporting plate, 25-elastic support, 26-first air-permeable water inlet, 27-second air-permeable water inlet

Detailed Description

To further illustrate the technical means and effects of the present invention for achieving the intended purpose of the utility model, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1.

As shown in fig. 1-3, the air-permeable water inlet valve described in this embodiment includes a valve housing 21, a pressing plate 22, a pressure film 23, a supporting plate 24 and elastic supports 25, the air-permeable water inlet valve further includes a first air-permeable water inlet 26 and a second air-permeable water inlet 27, the first air-permeable water inlet 26 is located in the middle of the pressing plate 22 and penetrates through the pressing plate 22, the number of the second air-permeable water inlets 27 is 4, the first air-permeable water inlets 26 are uniformly arranged around the first air-permeable water inlet 26, a boss is disposed in the middle of the valve housing 21, the elastic supports 25 are hollow structures, the elastic supports 25 are sleeved on the boss, the supporting plate 24 is of a gyro-type structure with two small ends and a convex middle, the upper end of the supporting plate 24 is sleeved in the elastic supports 25, the supporting plate 24 is connected with and supported by the elastic supports 25, the pressure film 23 is disposed on the lower surface of the supporting plate 24 and is pressed by the lower post of the supporting plate 24, the pressing plate 22 is disposed on the lower surface of the pressure film 23, and is secured to the valve housing 21.

The valve casing 21 is of a cup-shaped structure, and the depth of the valve casing is 50% -95% of the height of the elastic support 25. The support plate 24 has a maximum outer dimension smaller than the inner dimension of the valve housing 21. The elastic support 25 uses a spring.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The water inlet air-permeable release valve is characterized by comprising a valve shell (21), a pressing plate (22), a pressure film (23), a supporting plate (24) and elastic supports (25), the air-permeable water inlet valve further comprises a first air-permeable water inlet (26) and a second air-permeable water inlet (27), the first air-permeable water inlet (26) is positioned in the middle of the pressing plate (22) and penetrates through the pressing plate (22), the number of the second air-permeable water inlets (27) is not less than two, the first air-permeable water inlets (26) are uniformly distributed around the second air-permeable water inlet, a boss is arranged in the middle of the valve shell (21), the elastic supports (25) are of a hollow structure, the elastic supports (25) are sleeved on the boss, the supporting plate (24) is of a gyro-type structure with two small ends and a convex middle, the upper ends of the supporting plate (24) are sleeved in the elastic supports (25), the supporting plate (24) is connected with the valve shell (21) through the elastic supports (25), the pressure film (23) is placed on the lower surface of the support plate (24) and is pressed by the lower column of the support plate (24) after penetrating through, and the pressing plate (22) is arranged on the lower surface of the pressure film (23) and is fastened with the valve shell (21).

2. The water-inlet air-permeable release valve according to claim 1, wherein the valve housing (21) is of a cup-shaped structure and has a depth of 50-95% of the height of the elastic support (25).

3. The water inlet air-permeable release valve according to claim 1, wherein the support plate (24) has a maximum outer dimension smaller than an inner dimension of the valve housing (21).

4. The water inlet air-permeable release valve according to claim 1, wherein the elastic support (25) is selected from a spring, a bellows or a leaf spring.