CN209800902U - Pipe joint with good sealing performance - Google Patents

Abstract

The utility model discloses a pipeline joint with good sealing performance, which comprises a joint body, wherein the inner wall in the middle of the joint body is provided with a convex block for connecting a rust-proof block, a space for placing a sealing ring is arranged at the right-angle position where the convex block is connected with the rust-proof block, a concave groove for placing the sealing ring in a deformed way after being extruded by a water pipe body is arranged between the sealing ring and the inner wall of the joint body, and the concave groove is arranged on the inner wall of the joint body. The good sealing performance of the pipeline is ensured.

Description

A pipe joint with good airtightness

【Technical field】

The application relates to a pipe joint, in particular to a pipe joint for conveying liquid.

【Background technique】

In daily life, due to the limited length of the pipe and the problem of the turning position of the pipe, pipe joints are required for splicing, and the sealing of the pipe joints is particularly important. Because the pipe tapping head is affected by the production process, some pipes cannot be twisted. Into the end to cause air leakage, for these cases using extended sealing ring.

To sum up, after lengthening the sealing ring, the sealing ring is extruded and there is no space to place the extruded part, resulting in damage to the sealing ring, which is a problem to be solved by those skilled in the art.

【Content of utility model】

In order to solve the problem in the prior art that the sealing ring is squeezed and there is no space to place the protruding part of the sealing ring after the sealing ring is extended, the sealing ring is damaged. The technical solution adopted by the utility model is to design a pipe joint with good sealing performance. , including the joint body, the middle inner wall of the joint body is provided with a protruding block connected to the anti-rust block, and it is characterized in that: the right angle position where the protruding block is connected to the anti-rust block is also provided with a gap for a sealing ring , There is also a concave groove where the sealing ring is deformed after being squeezed by the water pipe body, and the concave groove is opened on the inner wall of the joint body between the sealing ring and the inner wall of the joint body.

The concave groove is in the shape of a semi-ellipse.

The concave groove circles around the inner wall of the joint body.

The length of the anti-rust block extending to both sides is less than the length of the sealing ring.

The antirust block is made of polypropylene.

The anti-rust block and the protruding block are connected by intermediate frequency heating composite method.

The antirust blocks on the protruding blocks extend to both sides.

The joint body is a two-way joint.

Threads matching the water pipe body are also provided on both sides of the inner wall of the joint body.

The beneficial effects of the utility model are:

1. The utility model is a pipe joint with good sealing performance. Because the sealing ring is placed on the protruding block, and the sealing ring is blocked by the anti-rust block, it will not be deformed toward the center when squeezed, so the sealing ring can only move toward the inner wall. The side is deformed, and there is a concave groove on the inner wall side, so there is enough space for the sealing ring to deform, so when the anti-rust block of the joint is combined with the anti-rust block of the pipe, the sealing ring will not be damaged due to extrusion, ensuring that the pipe The sealing is good.

2. The material of the anti-rust block prevents corrosion and reduces liquid resistance.

3. The slotting process is simple and convenient.

4. The structure is simple, which is good for popularization.

5. It adopts thread combination, which is convenient to connect.

【Description of drawings】

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments.

Fig. 1 is the overall schematic diagram of the pipeline joint with good airtightness of the utility model;

Fig. 2 is a cross-sectional schematic diagram of a pipe joint with good airtightness of the utility model.

【Detailed ways】

In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, with reference to Fig. 1 and Fig. 2, the utility model is further described in detail. It should be understood that the specific embodiments described here are only used to explain the utility model. It is a new model and is not intended to limit the utility model.

The utility model is a pipeline joint with good airtightness, which comprises a joint body 1, and the middle inner wall of the joint body 1 is provided with a protruding block 3 connected with an anti-rust block 2, and the protruding block 3 is connected with the anti-rust block 2 The right-angle position of the connection is also provided with a gap where the sealing ring 4 can be placed. There is also a recessed groove 5 where the sealing ring 4 is deformed after being squeezed by the water pipe body 6 and placed between the sealing ring 4 and the inner wall of the joint body 1. , the concave groove 5 is opened on the inner wall of the joint body 1, because the sealing ring is placed on the protruding block, and the sealing ring is blocked by the anti-rust block, so it will not be deformed toward the center when squeezed, so the sealing ring can only Deformation to the inner wall side, there is a concave groove on the inner wall side, so there is enough space for the sealing ring to deform, so when the anti-rust block of the joint is combined with the anti-rust block of the pipe body, the sealing ring will not be damaged due to extrusion, It ensures good sealing of the pipeline.

The concave groove 5 is in a semi-elliptical shape, and the groove opening process of this shape is simple and convenient.

The concave groove 5 circles around the inner wall of the joint body 1 , and there is more room for the sealing ring 4 to be placed after being squeezed.

The length of the anti-rust block 2 extending to both sides is less than the length of the sealing ring 4, and the sealing ring 4 has been compressed when the two anti-rust blocks 2 are combined, so the sealing effect is good.

The antirust block 2 is made of polypropylene to prevent the fluid in the pipe from contacting the steel pipe to cause oxidation and corrosion.

The anti-rust block 2 and the protruding block 3 are connected by intermediate frequency heating composite method, so that plastic cracking, degumming, and steel-plastic splitting will not occur.

The anti-rust block 2 on the protruding block 3 extends to both sides, and can block the movement of the sealing ring 4 to the center when compressed.

The joint body 1 is a two-way joint, and this structure can achieve the effect of pipeline transportation.

Both sides of the inner wall of the joint body 1 are also provided with threads matching the water pipe body 6, and the threaded structure is convenient for installation.

Working principle: the pipe body 6 is screwed into the joint body 1 through threads, and the seal ring 4 is compressed during the twisting process until the pipe body 6 and the anti-rust block 2 on the joint body 1 are combined. At this time, the seal ring 4 can only go to the inner wall after being compressed. Extend, and there is a concave groove 5 on the inner wall so the protruding part of the sealing ring 4 is placed in the groove after compression.

The utility model is a pipe joint with good sealing performance. Because the sealing ring is placed on the protruding block, and the sealing ring is blocked by the anti-rust block, it will not be deformed toward the center when squeezed, so the sealing ring can only be deformed toward the inner wall side. There is a concave groove on the inner wall side, so there is enough space for the sealing ring to deform, so when the anti-rust block of the joint and the anti-rust block of the pipe are combined, the sealing ring will not be damaged due to extrusion, ensuring the tightness of the pipe good.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model , all still belong to the scope of the technical solution of the utility model.

Claims (9)

1. The utility model provides a pipe joint that leakproofness is good, is including connecting body (1), the inner wall is equipped with protrusion piece (3) of connecting rust-resistant piece (2) in the middle of connecting body (1), its characterized in that: the right angle position that protruding piece (3) with rust-resistant piece (2) are connected still is equipped with the space that can put sealing washer (4), sealing washer (4) with still be equipped with between connecting body (1) inner wall sealing washer (4) receive water pipe body (6) extrusion back deformation to place depressed groove (5), depressed groove (5) open in connect on body (1) inner wall.

2. The pipe joint with good sealing performance as claimed in claim 1, wherein: the concave groove (5) is in a semi-elliptical shape.

3. The pipe joint with good sealing performance as claimed in claim 2, wherein: the concave groove (5) surrounds the inner wall of the joint body (1) for one circle.

4. The pipe joint with good sealing performance as claimed in claim 1, wherein: the length of the rust-proof block (2) extending to two sides is less than that of the sealing ring (4).

5. the pipe joint with good sealing performance as claimed in claim 4, wherein: the rust-proof block (2) is made of polypropylene.

6. The pipe joint with good sealing performance as claimed in claim 5, wherein: the rust-proof block (2) and the convex block (3) are connected by adopting a medium-frequency heating composite method.

7. The pipe joint with good sealing performance as claimed in claim 6, wherein: the rust-proof blocks (2) on the convex blocks (3) extend towards two sides.

8. The pipe joint with good sealing performance as claimed in claim 1, wherein: the joint body (1) is a two-way joint.

9. The pipe joint with good sealing performance as claimed in claim 8, wherein: and threads matched with the water pipe body (6) are further arranged on two sides of the inner wall of the joint body (1).