CN201934786U - Valve clack shockproof mechanism of swing check valve - Google Patents

Abstract

The utility model relates to a check valve, in particular to a swing-type check valve valve disc shockproof mechanism which can effectively reduce the vibration generated when the valve disc is opened by the medium flowing in the valve and hits the valve body. , screws, spring pads, compression springs, valve body. The spring pad is welded on the end surface of one end of the compression spring, put the end of the compression spring welded with the spring pad into the counterbore on the back of the valve disc, and then screw the The spring pad can be fastened on the back of the valve clack. After adopting the above structure, when the valve clack is opened under the thrust of the medium, the valve clack will not directly hit the valve body, and the compression on the back of the valve clack will The spring is in contact with the valve body to form a buffer, which has a good shockproof effect. Therefore, the valve body or disc can be prevented from being hit and broken, the noise during valve operation can be reduced, and the service life of the valve can be prolonged.

Description

Swing check valve disc shockproof mechanism

technical field

The utility model relates to a check valve, in particular to an anti-vibration mechanism for a valve disc of a swing check valve which can effectively reduce the vibration generated when the valve disc is opened by the medium flowing in the valve and hits the valve body.

Background technique

Check valves are also called check valves and one-way valves, and their main function is to prevent the medium in the pipeline from flowing backwards. When the swing check valve is working, the force generated by the medium flow in the pipeline pushes the disc to realize the automatic opening of the valve; when the medium in the pipeline flows back from the opposite direction, the thrust of the valve disc generated by the flow of the medium and the action of its own gravity automatically closes.

At present, there is no anti-vibration mechanism for the disc of the swing check valve on the market. When the disc is opened under the thrust of the medium, the disc directly hits the valve body, causing a lot of noise when the valve is working. In serious cases, the valve body or disc will be broken due to the impact, which will affect the service life of the valve.

Contents of the invention

In order to solve the above problems, the utility model provides an anti-vibration mechanism for a disc of a swing check valve. The anti-vibration mechanism of the disc is buffered by a spring, which avoids the direct collision with the valve body when the disc is opened, thereby preventing the valve body or the disc from being hit and broken, reducing the noise when the valve is working, and prolonging the service life of the valve.

The technical scheme adopted in the utility model is:

The anti-vibration mechanism of the disc of the swing check valve is mainly composed of a disc, screws, spring pads, compression springs and a valve body. The valve disc is in the shape of a round cake, and there is a cylindrical counterbore on the back of the valve disc. The aperture of the counterbore is slightly larger than the outer diameter of the compression spring. There is a screw hole at the bottom of the counterbore, and the screw and The screw holes are matched, the spring pad is a circular washer, and the spring pad is welded on the end face of one end of the compression spring, and the end of the compression spring welded with the spring pad is put into the In the counterbore on the back of the valve disc, and then use the screws to fasten the spring pad on the back of the valve disc.

The beneficial effects of the utility model are:

After adopting the above structure, when the valve clack is opened under the thrust of the medium, the valve clack will not directly hit the valve body, but the compression spring on the back of the valve clack contacts the valve body to form a buffer and play a good shockproof effect . Therefore, the valve body or disc can be prevented from being hit and broken, the noise during valve operation can be reduced, and the service life of the valve can be prolonged.

Description of drawings

Below in conjunction with the figure of the present utility model further explanation:

Figure 1 is a schematic structural view of a swing check valve.

Fig. 2 is a structural schematic diagram of the utility model.

In the figure, 1. Disc, 2. Screw, 3. Spring pad, 4. Compression spring, 5. Valve body.

Detailed ways

The anti-vibration mechanism of the flap of the swing check valve is mainly composed of a flap (1), screws (2), spring pads (3), compression springs (4), and a valve body (5). The valve disc (1) is in the shape of a round cake, and the back of the valve disc (1) has a cylindrical counterbore. The aperture of the counterbore is slightly larger than the outer diameter of the compression spring (4), and the bottom of the counterbore There is a screw hole, the screw (2) is matched with the screw hole, the spring pad (3) is a circular washer, and the spring pad (3) is welded on one end of the compression spring (4). On the end face, put the end of the compression spring (4) welded with the spring pad (3) into the counterbore on the back of the valve disc (1), and then use the screw (2) to screw the The spring pad (3) is fastened on the back side of the valve flap (1).

Claims (1)

1. A swing-type check valve disc anti-vibration mechanism mainly consists of valve disc, screw, spring pad, compression spring and valve body. It is characterized in that: the back side of the valve disc has a cylindrical sink hole, The aperture of the hole is slightly larger than the outer diameter of the compression spring. There is a screw hole at the bottom of the counterbore, and the screw matches the screw hole. The spring pad is a circular washer, and the spring pad is welded on the The end surface of one end of the compression spring.

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