CN211779521U

CN211779521U - Water seepage prevention connecting structure for butterfly valve

Info

Publication number: CN211779521U
Application number: CN202020270335.6U
Authority: CN
Inventors: 车骋; 李明飞; 张迎旭
Original assignee: Tieling Fanaticism Valve Co ltd
Current assignee: Tieling Fanaticism Valve Co ltd
Priority date: 2020-03-07
Filing date: 2020-03-07
Publication date: 2020-10-27
Anticipated expiration: 2030-03-07

Abstract

The utility model discloses a water seepage prevention connecting structure for butterfly valve, including valve body, pipeline, first flange and second flange, the right-hand member of valve body is connected with the left end of first flange, and the inboard of first flange is provided with the pipe, and the lateral surface of pipe is even to be provided with first circular slot, is provided with first rubber ring in the first circular slot, and the right-hand member of first flange is provided with the bulge loop in the outside of pipe, the outside of bulge loop is provided with the second circular slot, is provided with the second rubber ring in the second circular slot, the outside of the left end of pipeline is provided with the second flange, and the left end of second flange is provided with the recess that corresponds with the bulge loop, and the second flange inserts in the recess through the bulge loop and is connected with first flange, and the right-hand member of recess is provided with the dovetail groove; the utility model discloses have good prevention of seepage water function, avoid using for a long time the condition that the infiltration appears and leak, improved its leakproofness, ensure the quality of its use, increase of service life.

Description

Water seepage prevention connecting structure for butterfly valve

Technical Field

The utility model particularly relates to a technical field is connected in the prevention of seepage water for the butterfly valve, especially relates to a prevention of seepage water connection structure for butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk.

The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil, liquid metal, radioactive media and the like, and mainly plays a role in cutting off and throttling on a pipeline, the butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve body, so that the purpose of opening and closing or adjusting is achieved, the water seepage phenomenon can occur at the joint of the butterfly valve and the pipeline after long-time use, water in the pipeline is lost invisibly and seeps water for a long time, a rubber gasket between the butterfly valve and the pipeline can be gradually damaged to cause water holes, a large amount of water flows out, and the waste of water resources is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a water seepage prevention connecting structure for a butterfly valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a butterfly valve is with prevention of seepage water connection structure, includes valve body, pipeline, first flange and second flange, the right-hand member of valve body is connected with the left end of first flange, and the inboard of first flange is provided with the pipe, and the lateral surface of pipe is even is provided with first circular slot, is provided with first rubber ring in the first circular slot, and the right-hand member of first flange is provided with the bulge loop in the outside of pipe, the outside of bulge loop is provided with the second circular slot, is provided with the second rubber ring in the second circular slot, the outside of the left end of pipeline is provided with the second flange, and the left end of second flange is provided with the recess that corresponds with the bulge loop, and the second flange inserts in the recess through the bulge loop with first flange joint, and the right-hand member of recess is provided with the dovetail groove, is provided with trapezoidal cushion in the dovetail groove, and the left end of trapezoidal cushion.

Furthermore, a third circular groove is formed in the inner side of the groove, and a third rubber ring is arranged in the third circular groove.

Furthermore, a first sealing gasket is arranged at the right end of the first flange between the circular ring and the circular pipe.

Furthermore, a second sealing gasket is arranged at the right end of the first flange on the outer side of the ring, and a through hole corresponding to the first flange is formed in the second sealing gasket.

Furthermore, the right end of bulge loop is provided with two fourth circular slots, and two fourth circular slots are connected with two protruding circles in a matching manner.

Furthermore, the second flange is connected with the pipeline in a welding mode, and an anti-corrosion layer is coated on the outer sides of the second flange and the pipeline.

Furthermore, first flange and equal welded connection of pipe and valve body, the outside of first flange, pipe and valve body all is scribbled the anticorrosive coating.

Further, the outer diameter of the round tube is equal to the inner diameter of the pipeline.

The utility model has the advantages that:

1. the outer side of the round pipe is uniformly provided with a first groove, a first rubber ring is arranged in the first groove, the round pipe and the pipeline are sealed through the first rubber ring, and water is prevented from flowing out of the round pipe and the pipeline.

2. Through first sealed pad and second sealed pad, improved the leakproofness between first flange and the second flange.

3. Through second rubber ring, third rubber ring and the trapezoidal cushion that sets up in bulge loop and the recess, further improved the leakproofness that the butterfly valve is connected, effectively prevented the condition that the infiltration appears, improved its life.

Drawings

Fig. 1 is a schematic structural view of a water seepage prevention connection structure for a butterfly valve according to the present invention;

fig. 2 is a schematic cross-sectional structural view of a first flange, a circular tube and a circular ring of the water seepage prevention connection structure for the butterfly valve provided by the present invention;

fig. 3 is a schematic sectional structural view of the pipeline and the second flange of the anti-seepage connection structure for the butterfly valve according to the present invention.

In the figure: 1-valve body, 2-pipeline, 3-first flange, 4-second flange, 5-round pipe, 6-first round groove, 7-first rubber ring, 8-convex ring, 9-second round groove, 10-second rubber ring, 11-groove, 12-trapezoidal groove, 13-trapezoidal rubber gasket, 14-convex ring, 15-third round groove, 16-third rubber ring, 17-first sealing gasket, 18-second sealing gasket, 19-through hole, 20-fourth round groove, 21-anticorrosive layer and 22-screw.

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.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-3, a water seepage prevention connection structure for a butterfly valve comprises a valve body 1, a pipeline 2, a first flange 3 and a second flange 4, wherein the right end of the valve body 1 is connected with the left end of the first flange 3, a circular pipe 5 is arranged on the inner side of the first flange 3, a first circular groove 6 is uniformly arranged on the outer side surface of the circular pipe 5, a first rubber ring 7 is arranged in the first circular groove 6, a convex ring 8 is arranged on the right end of the first flange 3 on the outer side of the circular pipe 5, a second circular groove 9 is arranged on the outer side of the convex ring 8, a second rubber ring 10 is arranged in the second circular groove 9, the outer diameter of the circular pipe 5 is equal to the inner diameter of the pipeline 2, the circular pipe 5 is convenient to be attached to the inner wall of the pipeline 2 and inserted into the pipeline 2, a second flange 4 is arranged on the outer side of the left end of the pipeline 2, a groove 11 corresponding to the convex ring 8 is arranged on the, be provided with third rubber ring 16 in the third circular slot 15, improve the leakproofness of being connected between recess 11 and the bulge loop 8, second flange 4 inserts in recess 11 through bulge loop 8 and is connected with first flange 3, and the right-hand member of recess 11 is provided with dovetail groove 12, is provided with trapezoidal cushion 13 in the dovetail groove 12, and the left end of trapezoidal cushion 13 is provided with two bulge loops 14.

It should be further noted that, a first sealing gasket 17 is arranged at the right end of the first flange 3 between the circular ring and the circular pipe 5, a second sealing gasket 18 is arranged at the right end of the first flange 3 at the outer side of the circular ring, a through hole 19 corresponding to the first flange 3 is arranged on the second sealing gasket 18, the sealing performance between the first flange 3 and the second flange 4 is improved through the first sealing gasket 17 and the second sealing gasket 18, two fourth circular grooves 20 are arranged at the right end of the protruding ring 8, the two fourth circular grooves 20 are in fit connection with the two protruding rings 14, the protruding rings 14 are clamped through the fourth circular grooves 20, the trapezoidal rubber gasket 13 is extruded into the trapezoidal groove 12 to improve the sealing performance, the second flange 4 is in welded connection with the pipeline 2, the outer sides of the second flange 4 and the pipeline 2 are coated with an anti-corrosion layer 21, the first flange 3 is in welded connection with the circular pipe 5 and the valve body 1, the outer sides of the first flange 3, the circular pipe 5 and the valve body 1 are coated with the anti-corrosion layer 21, prevent long-term rusting and damage in the environment and prolong the service life.

The working principle of the embodiment is as follows: when the valve body 1 and the pipeline 2 are in sealing connection, the first rubber ring 7, the second rubber ring 10, the third rubber ring 16, the first sealing gasket 17, the second sealing gasket 18 and the trapezoidal rubber gasket 13 are installed, then the circular pipe 5 is inserted into the pipeline 2, the convex ring 8 is inserted into the groove 11, then the screw 22 is installed and screwed, the first flange 3 and the second flange 4 clamp the first sealing gasket 17 and the second sealing gasket 18 tightly, and the valve body 1 and the pipeline 2 are in sealing connection, so that the sealing performance of the valve body is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a prevention of seepage water connection structure for butterfly valve, includes valve body (1), pipeline (2), first flange (3) and second flange (4), its characterized in that: the right end of the valve body (1) is connected with the left end of a first flange (3), a round pipe (5) is arranged on the inner side of the first flange (3), a first round groove (6) is uniformly formed in the outer side surface of the round pipe (5), a first rubber ring (7) is arranged in the first round groove (6), a convex ring (8) is arranged on the outer side of the round pipe (5) at the right end of the first flange (3), a second round groove (9) is arranged on the outer side of the convex ring (8), a second rubber ring (10) is arranged in the second round groove (9), the second flange (4) is fixedly connected with the first flange (3) through a screw (22), a second flange (4) is arranged on the outer side of the left end of the pipeline (2), a groove (11) corresponding to the convex ring (8) is formed in the left end of the second flange (4), and the second flange (4) is inserted into the groove (11) through the convex ring (8) and connected with the first flange (3), the right end of the groove (11) is provided with a trapezoidal groove (12), a trapezoidal rubber mat (13) is arranged in the trapezoidal groove (12), and the left end of the trapezoidal rubber mat (13) is provided with two convex rings (14).

2. A water seepage prevention connection structure for a butterfly valve according to claim 1, wherein: and a third circular groove (15) is formed in the inner side of the groove (11), and a third rubber ring (16) is arranged in the third circular groove (15).

3. A water seepage prevention connection structure for a butterfly valve according to claim 1, wherein: and a first sealing gasket (17) is arranged at the right end of the first flange (3) between the circular ring and the circular pipe (5).

4. A water seepage prevention connection structure for a butterfly valve according to claim 1, wherein: and a second sealing gasket (18) is arranged at the right end of the first flange (3) and on the outer side of the circular ring, and a through hole (19) corresponding to the first flange (3) is formed in the second sealing gasket (18).

5. A water seepage prevention connection structure for a butterfly valve according to claim 1, wherein: the right end of the convex ring (8) is provided with two fourth circular grooves (20), and the two fourth circular grooves (20) are connected with the two convex rings (14) in a matched mode.

6. A water seepage prevention connection structure for a butterfly valve according to claim 1, wherein: the second flange (4) is connected with the pipeline (2) in a welding mode, and an anticorrosive layer (21) is coated on the outer sides of the second flange (4) and the pipeline (2).

7. A water seepage prevention connection structure for a butterfly valve according to claim 1, wherein: first flange (3) and equal welded connection of pipe (5) and valve body (1), the outside of first flange (3), pipe (5) and valve body (1) all scribbles anticorrosive coating (21).

8. A water seepage prevention connection structure for a butterfly valve according to claim 1, wherein: the outer diameter of the circular tube (5) is equal to the inner diameter of the pipeline (2).