CN214119048U - Groove type rubber flap check valve - Google Patents

Abstract

The utility model discloses a groove type rubber flap check valve, belonging to the valve field, comprising a valve body and a valve flap arranged in the valve body, wherein the valve body is provided with a water inlet end and a water outlet end, and the valve flap is positioned between the water inlet end and the water outlet end; needle valves are respectively arranged on the valve bodies of the water inlet end and the water outlet end, and the needle valves at the two ends are communicated through a pipeline; the outer circular surfaces of the valve body at the water inlet end and the water outlet end are respectively provided with a groove. The water flow at the two ends of the inlet water and the outlet water is controlled by adjusting the needle-shaped valves, the balance of the pipeline is adjusted, the stable pressure and the balanced pressure behind the pipe in front of the pipe are ensured, and the water hammer, the vibration of the water pipe and the burst of the pipeline are prevented.

Description

Groove type rubber flap check valve

Technical Field

The utility model belongs to the valve field, concretely relates to slot type rubber lamella check valve.

Background

The rubber flap check valve is a commonly used valve and is mainly used for preventing fluid in a pipeline from flowing backwards to cause damage to equipment.

The existing rubber flap check valve can only be opened or closed generally, and when the check valve is opened, water supplement cannot be adjusted, the flow of water is controlled, the stability and the balance pressure cannot be achieved, and the water hammer phenomenon is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a slot type rubber lamella check valve to solve the problem that current rubber lamella check valve is difficult to the rivers at balanced valve both ends and the water hammer phenomenon easily appears.

For realizing the purpose of the utility model, the technical proposal adopted is that: the groove type rubber flap check valve is characterized by comprising a valve body and a valve flap arranged in the valve body, wherein the valve body is provided with a water inlet end and a water outlet end, and the valve flap is positioned between the water inlet end and the water outlet end; needle valves are respectively arranged on the valve bodies of the water inlet end and the water outlet end, and the needle valves at the two ends are communicated through a pipeline; the outer circular surfaces of the valve body at the water inlet end and the water outlet end are respectively provided with a groove.

As a further alternative, a valve clack connecting seat is fixed in the valve body, and the valve clack is hinged with the valve clack connecting seat.

As a further alternative, the valve flap is of unitary construction with the valve body.

As a further alternative, the groove is annular.

As a further alternative, the valve flap is a fully rubber-lined valve plate.

As a further alternative, a pipeline communicated between the needle valves at two ends is a copper pipe.

The utility model has the advantages that: the water flow at the two ends of the inlet water and the outlet water is controlled by adjusting the two needle valves, so that a balance effect is achieved, meanwhile, the water at the inlet water end can be compensated to the outlet water end to play a buffering effect, the water hammer phenomenon is prevented, and a non-return effect is achieved in the using process. Not only realize opening or closing of valve, can also adjust the pipeline balance, guarantee behind the pipe before the pipe with stable, balanced pressure of pressure behind the pipe, prevent that water hammer, water pipe vibrations and pipeline from bursting, simple to operate can use the installation of clamp spare through the slot.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the description of the embodiments will be briefly introduced below, it should be understood that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a grooved rubber flap check valve according to an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of the needle valve employed in FIG. 1;

reference numerals: 1-valve body, 2-valve clack, 3-water inlet end, 4-water outlet end, 5-needle valve, 6-pipeline, 7-groove and 8-valve clack connecting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. It is to be understood that the drawings are designed solely for the purposes of illustration and description and not as a definition of the limits of the invention. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Fig. 1 and fig. 2 show a groove type rubber flap check valve provided by the present invention, which includes a valve body 1 and a valve flap 2 disposed in the valve body 1, the valve body 1 has a water inlet end 3 and a water outlet end 4, and the valve flap 2 is located between the water inlet end 3 and the water outlet end 4; needle valves 5 are respectively arranged on the valve bodies 1 of the water inlet end 3 and the water outlet end 4, and the needle valves 5 at the two ends are communicated through a pipeline 6; the outer circular surfaces of the valve body 1 of the water inlet end 3 and the water outlet end 4 are respectively provided with a groove 7.

Namely, the valve body 1 of the water inlet end 3 is communicated with one end of one needle valve 5, the valve body 1 of the water outlet end 4 is communicated with one end of the other needle valve 5, the other ends of the two needle valves 5 are communicated with each other, and the two needle valves can be communicated with each other by adopting a copper pipe. The needle valve 5 is a purchased part, is a valve capable of being accurately adjusted, can adopt the needle valve 5 with scales, conveniently and visually adjusts the needle valve 5 through the scales, and controls the water flow at the two ends of the valve body 1.

The needle valves 5 are convenient to adjust, the water replenishing is adjusted through the communication of the needle valves 5 at two ends, the flow of water can be controlled through adjusting the opening degree of the needle valves 5, the pressure is balanced, the high stability is achieved, and the water hammer phenomenon is prevented.

A valve clack connecting seat 8 is fixed in the valve body 1, and the valve clack 2 is hinged with the valve clack connecting seat 8. The valve structure is avoided being complicated and large in size due to the fact that the valve cover is additionally arranged to be connected with the valve clack 2 in the prior art, and the valve structure is simplified. The valve clack 2 and the valve body 1 can be of an integral structure, and the valve body 1 is small in size and saves materials.

The groove 7 is annular, a clamp is convenient and quick to install, and installation and connection are quick and convenient. The valve clack 2 is a full rubber-lined valve plate, the sealing performance of the full rubber-lined valve plate is good, and the phenomenon that water flows backwards or flows backwards can be prevented to a greater extent. The full rubber-lined valve plate comprises a metal steel plate and lining rubber covered on the outer surface of the metal steel plate.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims (6)

1. The groove type rubber flap check valve is characterized by comprising a valve body and a valve flap arranged in the valve body, wherein the valve body is provided with a water inlet end and a water outlet end, and the valve flap is positioned between the water inlet end and the water outlet end; needle valves are respectively arranged on the valve bodies of the water inlet end and the water outlet end, and the needle valves at the two ends are communicated through a pipeline; the outer circular surfaces of the valve body at the water inlet end and the water outlet end are respectively provided with a groove.

2. The grooved rubber flap check valve of claim 1 wherein a flap connecting seat is fixed in the valve body, the flap being hinged to the flap connecting seat.

3. The grooved rubber flap check valve of claim 2 wherein the flap is of unitary construction with the valve body.

4. The grooved rubber flap check valve of claim 1 wherein the groove is annular.

5. The grooved rubber flap check valve of claim 1 wherein the valve flap is a fully rubber lined valve plate.

6. The grooved rubber flap check valve as in claim 1 wherein the conduit communicating between the needle valves at both ends is a copper tube.

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