CN213954441U

CN213954441U - Check valve

Info

Publication number: CN213954441U
Application number: CN202022460987.9U
Authority: CN
Inventors: 仝进召; 仝进领
Original assignee: Tianjin Yinuo Valve Industry Co ltd
Current assignee: Tianjin Yinuo Valve Industry Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-08-13
Anticipated expiration: 2030-10-30

Abstract

The utility model relates to a check valve, include the valve body, articulate in the valve clack of valve body inner wall top and the filtering mechanism of impurity in the filtering liquid, be equipped with the disk seat with valve clack looks adaptation and the stopper of restriction valve clack opening angle in the valve body, the valve clack top is equipped with first valve gap, filtering mechanism includes the filter screen of disk seat front side and the second valve gap of filter screen below, the peripheral cladding of filter screen has the stereoplasm frame, the valve body inner wall is equipped with the first draw-in groove of joint stereoplasm frame, the second draw-in groove that the second valve gap inner wall was equipped with, the stereoplasm frame passes through the bolt rigid coupling in the second draw-in groove. The utility model discloses be equipped with the filter screen in the valve body, be convenient for filter the impurity of the internal flowing liquid of valve, the check valve closure variation in the time of preventing impurity to gather the liquid reflux that leads to in the valve clack periphery, and the cladding makes the filter screen be convenient for install and dismantle the washing in filter screen peripheral stereoplasm frame and first draw-in groove and second draw-in groove.

Description

Check valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a check valve.

Background

The check valve belongs to the automatic valve category, also called check valve, backflow valve or isolation valve, refers to a valve whose opening and closing piece is a circular valve flap and acts by its own weight and medium pressure to block the medium backflow. Check valves of this type function to allow flow of the medium in one direction only, but to prevent flow in the opposite direction. Typically such valves are self-actuating, with the flap opening under the pressure of a fluid flowing in one direction; when the fluid flows in the opposite direction, the valve flap is closed to the valve seat by the fluid pressure and the self-weight of the valve flap, thereby cutting off the flow. The existing check valve generally has no cleaning mechanism, and some residues are accumulated on the periphery of the valve clack in the flowing process of liquid in the valve body, so that the sealing performance of the check valve is poor when the liquid flows back, and the using effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a check valve.

The utility model discloses a realize through following technical scheme:

the utility model provides a check valve, includes the valve body, articulates in the valve clack of valve body inner wall top and the filtering mechanism who filters impurity in the liquid, be equipped with the disk seat with valve clack looks adaptation and the stopper of restriction valve clack opening angle in the valve body, the valve clack top is equipped with first valve gap, filtering mechanism includes the filter screen of disk seat front side and the second valve gap of filter screen below, the peripheral cladding of filter screen has the stereoplasm frame, the valve body inner wall is equipped with the first draw-in groove of joint stereoplasm frame, the second draw-in groove that second valve gap inner wall was equipped with, the stereoplasm frame passes through bolt rigid coupling in the second draw-in groove.

Preferably, the periphery of the valve flap is coated with a sealing ring.

The utility model has the advantages that:

the utility model discloses be equipped with the filter screen in the valve body, be convenient for filter the impurity of the internal flowing liquid of valve, the check valve closure variation in the time of preventing impurity to gather the liquid reflux that leads to in the valve clack periphery, and the cladding makes the filter screen be convenient for install and dismantle the washing in filter screen peripheral stereoplasm frame and first draw-in groove and second draw-in groove.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a second valve cover of the present invention.

In the figure: 1. the valve comprises a valve body, 2 parts of a first valve cover, 3 parts of a limiting block, 4 parts of a valve clack, 5 parts of a second valve cover, 6 parts of a second clamping groove, 7 parts of a valve seat, 8 parts of a hard frame, 9 parts of a first clamping groove and 10 parts of a filter screen.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in the figure, the utility model discloses a valve body 1, articulate in the valve clack 4 of valve body inner wall top and the filtering mechanism of impurity in the filtering liquid, be equipped with in the valve body with disk seat 7 of valve clack looks adaptation and the stopper 3 of restriction valve clack opening angle, the valve clack top is equipped with first valve gap 2, filtering mechanism includes filter screen 10 of disk seat front side and second valve gap 5 of filter screen below, is convenient for filter the impurity of the internal flowing liquid of valve, the peripheral cladding of filter screen has stereoplasm frame 8, the fixed of the filter screen of being convenient for, the valve body inner wall is equipped with the first draw-in groove 9 of joint stereoplasm frame, second draw-in groove 6 that second valve gap inner wall was equipped with is convenient for the stereoplasm frame passes through the bolt rigid coupling in the second draw-in groove, the installation of the filter screen of being convenient for.

The periphery of the valve clack is coated with a sealing ring, so that the sealing performance between the valve clack and the valve seat is enhanced when liquid in the valve body flows back.

The working principle of the utility model is that when the liquid in the valve body flows in the positive direction, the valve clack is opened under the pressure of the flowing liquid, the limiting block limits the opening angle of the valve clack, and the filter screen at the front side of the valve seat filters the impurities in the liquid to prevent the impurities from accumulating on the valve clack; when the liquid in the valve body flows back, the liquid pressure and the self weight of the valve clack act together to press the valve clack and the valve seat; when the filter screen accumulates impurity more, can open the second valve gap, wash the filter screen. The utility model discloses be equipped with the filter screen in the valve body, be convenient for filter the impurity of the internal flowing liquid of valve, the check valve closure variation in the time of preventing impurity to gather the liquid reflux that leads to in the valve clack periphery, and the cladding makes the filter screen be convenient for install and dismantle the washing in filter screen peripheral stereoplasm frame and first draw-in groove and second draw-in groove.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a check valve, its characterized in that includes the valve body, articulates the filtering mechanism of impurity in the valve clack and the filtration liquid of valve body inner wall top, be equipped with the disk seat with valve clack looks adaptation and the stopper of restriction valve clack opening angle in the valve body, the valve clack top is equipped with first valve gap, filtering mechanism includes the filter screen of disk seat front side and the second valve gap of filter screen below, the peripheral cladding of filter screen has the stereoplasm frame, the valve body inner wall is equipped with the first draw-in groove of joint stereoplasm frame, the second draw-in groove that second valve gap inner wall was equipped with, the stereoplasm frame passes through bolt rigid coupling in the second draw-in groove.

2. The check valve of claim 1 wherein said flap is peripherally coated with a sealing ring.