CN215410228U

CN215410228U - Pneumatic closed air valve

Info

Publication number: CN215410228U
Application number: CN202120771360.7U
Authority: CN
Inventors: 钟上明
Original assignee: Wuxi Mianjiang Hvac Environmental Protection Equipment Co ltd
Current assignee: Wuxi Mianjiang Hvac Environmental Protection Equipment Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2022-01-04
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses a pneumatic closed air valve which comprises blades arranged side by side, wherein the blades can rotate, an upper notch is formed in one side of the upper surface of each blade, a lower notch is formed in the other side of the lower surface of each blade, the upper notches of two adjacent blades are matched with the lower notches, the blades are positioned in an air port, side concave blocks are arranged on two sides of the inner wall of the air port, corresponding to the blades, and L-shaped sealing gaskets are arranged on the outer surfaces of the side concave blocks, the outer surfaces of the upper notches and the outer surfaces of the lower notches. When the utility model is in a fully closed state, the upper notches of two adjacent blades are matched with the lower notches, and under the condition that the upper notches are matched with the lower notches, the contact area between the two adjacent blades can be increased, and the sealing property of the blades is improved.

Description

Pneumatic closed air valve

Technical Field

The utility model relates to the technical field of air valves, in particular to a pneumatic closed air valve.

Background

Pneumatic valves are valves which are actuated by means of compressed air. When the pneumatic valve is purchased, the method for meeting the purchasing requirement only by determining the specification, the category and the pressure can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like;

the pneumatic air valve adopts a pneumatic mode to control the opening and closing of the air valve, the air valve is a valve for controlling the air quantity, the air valve in the prior art is shown in figure 1, the interior of the air port 1 is provided with parallel existing blades 7, the existing blades 7 can be contacted end to end, and the inner wall of the air port 1 is provided with a sealing gasket;

the air valve has poor tightness, and cannot meet the requirement in some environments requiring high-strength tightness.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pneumatic closed air valve to solve the problem that the air valve in the prior art is poor in sealing performance.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a pneumatic airtight type blast gate, includes the blade that sets up side by side, the blade can rotate, and the upper surface one side of every blade all establishes and has seted up the notch, and the lower surface opposite side of blade has all seted up the notch down, adjacent two the last notch and the lower notch cooperation of blade.

Preferably, the air inlet is further comprised, and the blade is positioned inside the air inlet.

Preferably, a pneumatic rotating shaft is inserted into the middle of each blade, and the pneumatic rotating shaft drives the blades to rotate.

Preferably, the positions of the two sides of the inner wall of the air port, which correspond to the blades, are provided with side concave blocks, and the side concave blocks are matched with the notches of the blades.

Preferably, the outer surface of the side concave block, the outer surface of the upper concave recess and the outer surface of the lower concave recess are all provided with L-shaped sealing gaskets.

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

1. when the blade is in a fully closed state, the upper notches of two adjacent blades are matched with the lower notches, and under the condition that the upper notches are matched with the lower notches, the contact area between the two adjacent blades can be increased, and the sealing property of the blade is improved;

2. the utility model is provided with the L-shaped sealing gasket at the position of the notch, and the L-shaped sealing gasket can further improve the sealing performance among the notches and ensure the sealing performance of the device in a fully closed state.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of a prior art damper;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural view of FIG. 2 with an L-shaped gasket added;

FIG. 4 is a schematic view of the fully open configuration of the vanes of this invention;

fig. 5 is a perspective view of a blade of the present invention.

In the figure: 1. a tuyere; 2. a blade; 21. an upper recess; 22. a lower notch; 3. a pneumatic rotating shaft; 4. a side concave block; 6. an L-shaped gasket; 7. the blade is present; 8. and a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 4, in an embodiment of the present invention, a pneumatic closed type air valve includes an air port 1 and blades 2 arranged side by side, the blades 2 are located inside the air port 1, the blades 2 can rotate, an upper notch 21 is formed on one side of an upper surface of each blade 2, a lower notch 22 is formed on the other side of a lower surface of each blade 2, the upper notches 21 and the lower notches 22 of two adjacent blades 2 are matched, when a plurality of blades 2 are closed, the upper notches 21 and the lower notches 22 can be matched, a contact area between two adjacent blades 2 is increased, and a sealing performance of the air valve is increased;

continuing to refer to fig. 2 and 4, a pneumatic rotating shaft 3 is inserted into the middle of each blade 2, and the pneumatic rotating shaft 3 drives the blade 2 to rotate, so that the blade 2 can be opened or closed;

continuing to refer to fig. 2 and 4, side concave blocks 4 are respectively installed at the positions, corresponding to the blades 2, of the two sides of the inner wall of the tuyere 1, the side concave blocks 4 are matched with the notches of the blades 2, and the side concave blocks 4 are used for increasing the sealing performance between the two sides of the inner wall of the tuyere 1 and the blades 2 and avoiding side air leakage;

as shown in fig. 3, 4 and 5, in order to improve the sealing performance between the respective recesses, the L-shaped gaskets 6 are mounted on the outer surfaces of the side recess blocks 4, the upper recess 21 and the lower recess 22.

The working principle and the using process of the utility model are as follows: when the device is used, when the blades are rotated to the state shown in fig. 4 by the pneumatic rotating shaft 3, the fully opened state is realized, air can be discharged at the time, when the blades are rotated to the state shown in fig. 2 by the pneumatic rotating shaft 3, the fully closed state is realized, at the time, the upper notches 21 and the lower notches 22 of the two adjacent blades 2 are matched, the upper notches 21 and the lower notches 22 can be matched, the contact area between the two adjacent blades 2 can be increased, the sealing performance of the blades can be improved, and further, the sealing performance of the device in the fully closed state can be ensured by the L-shaped sealing gasket 6.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A kind of pneumatic closed air valve, characterized by: including blade (2) that set up side by side, blade (2) can rotate, and the upper surface one side of every blade (2) all establishes and has seted up notch (21), and lower notch (22), adjacent two lower surface opposite side of blade (2) has all seted up notch (21) and lower notch (22) cooperation.

2. The pneumatically enclosed damper of claim 1, wherein: the air inlet is characterized by further comprising an air inlet (1), and the blades (2) are located inside the air inlet (1).

3. A pneumatically enclosed blast gate according to claim 2, wherein: and a pneumatic rotating shaft (3) is inserted into the middle of each blade (2), and the pneumatic rotating shaft (3) drives the blades (2) to rotate.

4. A pneumatically enclosed damper as claimed in claim 2 or 3, wherein: side concave blocks (4) are installed at positions, corresponding to the blades (2), of two sides of the inner wall of the air port (1), and the side concave blocks (4) are matched with notches of the blades (2).

5. The pneumatically enclosed damper of claim 4, wherein: and L-shaped sealing gaskets (6) are arranged on the outer surface of the side concave block (4), the outer surface of the upper notch (21) and the outer surface of the lower notch (22).