CN204099772U - Be applied to the joiner of valve - Google Patents

Abstract

The utility model discloses a coupler applied to valves, which comprises: a valve connection end, a pipe connection end connected to the valve connection end, a tapered extension pipe unit connected to the pipe connection end, and wrapping the sealing between the valve connection end and the valve. ring. The utility model provides a coupling which can be applied to various types of pipelines, saves cost, has high sealing performance, and ensures the stability of use.

Description

Couplings for valves

technical field

A coupling, especially a coupling applied to a valve.

Background technique

The size of the connection port of the valve coupling in the prior art is fixed, which cannot be applied to a variety of different pipe connection port diameters, and it is not necessary to change another type of coupling for one diameter, which is a waste of resources. Technology has not yet solved such problems.

Utility model content

In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide a coupling applicable to various types of pipelines, which saves costs and has high sealing performance to ensure the stability of use.

In order to achieve the above object, the utility model adopts the following technical solutions:

The coupling applied to the valve includes: the valve connection end, the pipe connection end connected to the valve connection end, the tapered extension pipe unit connected to the pipe connection end, and the sealing ring between the valve connection end and the valve.

For the aforementioned coupling applied to valves, there is at least one tapered extension pipe unit.

In the aforementioned coupling applied to a valve, the inner wall of the tapered extension pipe unit is provided with a first sealing ring.

In the aforementioned coupling applied to a valve, the first sealing ring is a first rubber ring.

In the aforementioned coupling applied to a valve, a second sealing ring is provided in the pipe connection end.

In the aforementioned coupling applied to a valve, the second sealing ring is a second rubber ring.

In the aforementioned coupling applied to a valve, a third sealing ring is provided in the valve connection end.

In the aforementioned coupling applied to a valve, the third sealing ring is a third rubber ring.

In the above-mentioned coupling applied to a valve, the sealing ring is formed with: a first stopper that is clipped to the valve, and a second stopper that is rotatably clipped to the connecting end of the pipeline.

In the aforementioned coupling applied to a valve, the first limiting member is a limiting protrusion, and the second limiting member is a thread placed on the inner wall of the sealing ring.

The utility model is beneficial in that: the utility model provides a coupling applicable to various types of pipelines, which saves cost and has high sealing performance to ensure stability in use.

Description of drawings

Fig. 1 is the sectional view of a kind of embodiment of the utility model;

Meanings of reference signs in the figure:

1 valve, 2 valve connection end, 3 sealing ring, 4 pipe connection end, 5 tapered extension pipe unit, 6 first sealing ring, 7 second sealing ring, 8 third sealing ring, 9 limit protrusion, 10 thread .

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is made concrete introduction.

The coupling applied to the valve 1 is characterized in that it includes: a valve connection end 2, a pipe connection end 4 connected to the valve connection end 2, a tapered extension pipe unit 5 connected to the pipe connection end 4, and wrapping the valve connection end 2 The sealing ring 3 between the valve 1; at least one tapered extension pipe unit 5; with the addition of the tapered extension pipe unit 5, the diameter of the connecting pipe gradually becomes smaller, and the thread 10 is passed between the tapered extension pipe units 5 connection to ensure tightness; in order to fix the pipeline and ensure tightness, the inner wall of the tapered extension pipe unit 5 is provided with a first sealing ring 6; as a preference, the first sealing ring 6 is a first rubber ring. When the tapered extension pipe unit 5 is not used, to ensure the sealing performance, a second sealing ring 7 is arranged inside the pipe connection end 4, and as a preference, the second sealing ring 7 is a second rubber ring. In order to ensure the sealing between the valve 1 and the coupling, the outer wall of the valve connecting end 2 is provided with a third sealing ring 8, as a preference, the third sealing ring 8 is a third rubber ring

In order to enhance the sealing stability of the coupling, the sealing ring 3 is formed with: the first limiter snapped on the valve 1, and the second limiter rotatably snapped on the pipe connection end 4; the first limiter is the limiter The protrusion 9 and the second stopper are threads 10 placed on the inner wall of the sealing ring 3 . The length of the threaded 10 section of the pipe connection end 4 is greater than the length of the threaded 10 section of the sealing ring 3, because it is convenient to adjust like this. The limit protrusion 9 is snapped into the groove on the valve 1, the groove is a ring-shaped groove, and the two directions are limited first, and then the screw thread 10 is used for rotation to connect with the coupling to ensure the stability of the fixation.

The utility model provides a coupling which can be applied to various types of pipelines, saves cost, has high sealing performance, and ensures the stability of use.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the above-mentioned embodiments do not limit the utility model in any form, and all technical solutions obtained by means of equivalent replacement or equivalent transformation all fall within the protection scope of the utility model.

Claims (10)

1. A coupling applied to a valve, characterized in that it includes: a valve connection end, a pipe connection end connected to the above-mentioned valve connection end, a tapered extension pipe unit connected to the above-mentioned pipe connection end, wrapping between the above-mentioned valve connection end and the valve of the sealing ring. 2. The coupling for valves according to claim 1, characterized in that there is at least one tapered extension pipe unit. 3 . The coupling for valves according to claim 1 , wherein a first sealing ring is provided on the inner wall of the tapered extension pipe unit. 4 . 4. The coupling for a valve according to claim 3, wherein the first sealing ring is a first rubber ring. 5 . The coupling for valves according to claim 1 , characterized in that, a second sealing ring is arranged inside the connecting end of the pipeline. 6 . 6. The coupling for a valve according to claim 5, wherein the second sealing ring is a second rubber ring. 7. The coupling for valves according to claim 1, characterized in that, a third sealing ring is provided inside the connecting end of the valve. 8. The coupling for a valve according to claim 7, wherein the third sealing ring is a third rubber ring. 9. The coupling for valves according to claim 1, characterized in that, the sealing ring is formed with: a first limiter snapped to the valve, a second limiter that is rotatably snapped to the connecting end of the pipeline pieces. 10 . The coupling applied to a valve according to claim 9 , wherein the first limiting member is a limiting protrusion, and the second limiting member is a thread placed on the inner wall of the sealing ring. 11 .