CN223203916U - Sealing structure of water supply pipe joint - Google Patents

Abstract

The utility model provides a sealing structure for a water supply pipe joint, which relates to the field of water supply pipes. The sealing structure of the water supply pipe joint includes a connecting pipe A and a connecting pipe B, wherein the connecting pipe A and the connecting pipe B are fixed by a connector, a cavity is formed between the ends of the connecting pipe A and the connecting pipe B that are close to each other, and a positioning ring and a sealing gasket for folding are provided in the cavity, one end of the sealing gasket is inserted between the connecting pipe A and the positioning ring, and the sealing structure of the water supply pipe joint has one end in a conical shape, which facilitates the joint B to push the sealing gasket to fold during the installation process of the joint A and the joint B, and the folded sealing gasket can be compressed by a plurality of protrusions A and B to form multiple sealing points for improving the overall sealing performance, and the protrusions A and B are always tightly pressed against the sealing gasket, so that when the water pressure suddenly increases, it is difficult to break through the multiple sealing points, and the overall installation is convenient and fast, and the sealing performance is good.

Description

Sealing structure of water supply pipeline joint

Technical Field

The utility model relates to the field of water supply pipelines, in particular to a sealing structure of a water supply pipeline joint.

Background

The water supply pipeline is an important facility for conveying water resources, plays a vital role in urban construction and daily life of people, the pipeline joint is a key component for connecting the water supply pipeline, the performance of the pipeline joint directly influences the reliability and the tightness of a water supply system, and in the water supply system, the sealing performance of the pipeline joint is vital.

The sealing structure of the traditional water supply pipeline joint is characterized in that in the installation process, the sealing ring is sleeved on the connecting end of the water pipe, then the water pipe is inserted into the straight joint used for connecting the water pipe, the wrench or the pipe wrench is used for tightening the joint so as to play a sealing role, the traditional joint needs to be increased in tightening force to meet the requirement of water pressure aiming at a pipeline with larger water pressure, leakage caused by loose connection is prevented, but the sealing ring is stressed too much and deformed inwards, and the extruded sealing ring part is easily stressed to be broken, so that water leakage is caused.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a sealing structure of a water supply pipeline joint, which is convenient and quick to integrally install and has good sealing performance, and water is prevented from overflowing due to deformation of a sealing gasket.

The sealing structure of the water supply pipeline joint comprises a connecting pipeline A and a connecting pipeline B, wherein the outer surface of the connecting pipeline A is of a convex structure, the connecting pipeline A and the connecting pipeline B are fixed through the joint, a cavity is formed between one ends, close to each other, of the connecting pipeline A and the connecting pipeline B, a positioning ring and a sealing gasket for folding are arranged in the cavity, one end of the sealing gasket is clamped between the connecting pipeline A and the positioning ring, and a bump A and a bump B for extruding the sealing gasket are fixedly connected to the inner wall of the connecting pipeline B and the outer surface of the connecting pipeline A respectively.

Preferably, one end of the sealing pad is conical.

Preferably, the connector comprises a connector A and a connector B, wherein the connector B is rotationally connected with the connector A and is in threaded connection with the connecting pipeline B.

Preferably, one end of the positioning ring is contacted with the connecting pipeline A, the other end of the positioning ring is tightly attached to the sealing gasket, and the inner ring and the outer ring of the positioning ring are contacted with the folded sealing gasket.

Preferably, the bump A and the bump B are both annular, and the cross sections of the bump A and the bump B are arc-shaped.

Preferably, the number of the convex blocks A and the convex blocks B is set to be a plurality.

Preferably, the thicknesses of the plurality of bumps a are sequentially increased, and the thicknesses of the plurality of bumps B are sequentially decreased.

Preferably, one end of the positioning ring, which is close to the joint A, is provided with a protruding structure.

Compared with the prior art, the sealing gasket has the beneficial effects that one end of the sealing gasket is conical, the joint A and the joint B are beneficial to pushing the sealing gasket to fold in the installation process, the folded sealing gasket can be compressed through the plurality of convex blocks A and the convex blocks B to form a plurality of sealing points for improving the overall sealing performance, the convex blocks A and the convex blocks B are always tightly extruded with the sealing gasket, and when the water pressure is suddenly increased or the sealing gasket is used for a long time, water is difficult to break through the plurality of sealing points to cause overflow, and the sealing gasket is convenient and quick to install integrally and good in sealing performance.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of a front view of a connecting conduit A and a connecting conduit B according to the present utility model;

FIG. 3 is a schematic view of the gasket of the present utility model;

FIG. 4 is a schematic view of the bump A according to the present utility model;

FIG. 5 is a schematic view showing a state in which a seal ring of the prior art is pressed.

The device comprises a connecting pipeline A, a connecting pipeline B, a connecting head 301, a connecting head A, a connecting head 302, a connecting head B, a cavity 4, a sealing gasket 5, a bump A, a bump 7, a bump B, a positioning ring 8, a 9 and a sealing ring.

Detailed Description

As shown in fig. 1-5, a sealing structure of a water supply pipeline joint comprises a connecting pipeline A1 and a connecting pipeline B2, wherein the connecting pipeline A1 and the connecting pipeline B2 are fixed through a connector 3, the outer surface of the connecting pipeline A1 is provided with a convex structure, the connector 3 comprises a joint a301 and a joint B302, the joint B302 is rotationally connected with the joint a301 and is in threaded connection with the connecting pipeline B2, the connecting pipeline A1 and the connecting pipeline B2 are conveniently fixed through the rotating joint B302, a cavity 4 is formed between one ends of the connecting pipeline A1 and the connecting pipeline B2, which are close to each other, a positioning ring 8 and a sealing gasket 5 for folding are arranged in the cavity 4, the sealing gasket 5 is made of soft materials and has elasticity, one end of the sealing gasket 5 is conical, the connecting pipeline B2 is conveniently pushed to be folded so as to improve the installation speed of the sealing gasket 5, one end of the positioning ring 8 close to the joint A301 is provided with a convex structure, one end of the sealing gasket 5 is clamped into a gap between the connecting pipeline A1 and the positioning ring 8, one end of the positioning ring 8 is in contact with the connecting pipeline A1, the other end of the positioning ring 8 is tightly attached to the sealing gasket 5, the inner ring and the outer ring of the positioning ring 8 are both in contact with the folded sealing gasket 5, the positioning ring 8 can provide supporting force for the sealing gasket 5 and is used for improving the stability of the sealing gasket 5, the inner wall of the connecting pipeline B2 and the outer surface of the connecting pipeline A1 are respectively and fixedly connected with a lug A6 and a lug B7 used for extruding the sealing gasket 5, the lug A6 and the lug B7 are all in ring shapes, the sections of the lug A6 and the lug B7 are arc shapes, when the lug A6 and the lug B7 extrude the sealing gasket 5 to deform, the sealing structure can be formed in a ring shape, the sealing range is improved, the number of the lugs A6 and the lugs B7 are all arranged into a plurality of, the thickness of a plurality of lug A6 increases gradually in proper order, and the thickness of a plurality of lug B7 decreases gradually, and the thickness of lug A6 that is close to connecting tube A1 is greater than the thickness of lug A6 that keeps away from connecting tube A1, and the thickness of lug B7 that is close to connecting tube A1 is less than the thickness of lug B7 that keeps away from connecting tube A1, during the installation for the more even compression sealing pad 5 of a plurality of lug A6 and lug B7, thereby the thickness that makes sealing pad 5 is more even.

Working principle:

As shown in fig. 5, in the sealing structure of the conventional water supply pipe joint, in the installation process, the sealing ring 9 is sleeved on the connection end of the water pipe, then the water pipe is inserted into the straight joint for connecting the water pipe, the joint is screwed by using a wrench or a pipe wrench to play a sealing role, and for the pipeline with larger water pressure, the conventional joint needs to increase screwing force to prevent leakage caused by loose connection in order to meet the requirement of water pressure, but the sealing ring 9 is stressed excessively and deformed inwards, and the extruded sealing ring 9 part is easily stressed and broken, so that water leakage is caused;

As shown in fig. 1-4, the joint a301 is first sleeved on the outer surface of the connecting pipe A1, the outer surface of the connecting pipe A1 is provided with a convex structure, so that the joint a301 can be buckled with the connecting pipe A1, at this time, the joint a301 is tightly contacted with the connecting pipe A1, then the positioning ring 8 is sleeved on one end of the sealing gasket 5 close to the connecting pipe A1, then the sealing gasket 5 is sleeved on the outer surface of the connecting pipe A1, the sealing gasket 5 is tightly contacted with the connecting pipe, then the connecting pipe B2 is abutted against the tapered end of the sealing gasket 5 and sleeved outside the positioning ring 8, during this process, the connecting pipe B2 pushes the tapered end of the sealing gasket 5 to fold towards the outer side of one end of the sealing gasket 5, because the sealing gasket 5 is made of soft material and has elasticity, on one hand, the tapered end of the sealing gasket 5 is easier to fold towards the outer ring of the positioning ring 8, on the other hand, as shown in fig. 2, the plurality of protrusions A6 inside the connection pipe B2 can squeeze the sealing pad 5 and move along the outermost ring of the sealing pad 5, the protrusions A6 will squeeze the sealing pad 5 to deform, and when the plurality of protrusions A6 move along the outermost ring of the sealing pad 5, the protrusions A6 will squeeze the sealing pad 5 to be elongated, and in the moving process of the sealing pad 5, the protrusions A6 will squeeze the sealing pad 5 in the direction approaching the connection pipe A1, so that the thickness of the portion of the sealing pad 5 approaching the joint a301 will be larger, therefore, the thicknesses of the protrusions A6 approaching the connection pipe A1 will be sequentially increased by the plurality of protrusions A6, and similarly, when the sealing pad 5 is sleeved on the outer surface of the connection pipe A1, the thicknesses of the protrusions A6 far away from the connection pipe A1 will be sequentially decreased due to the sequential decrease of the thicknesses of the plurality of protrusions B7, the sealing gasket 5 is compressed uniformly by the plurality of protruding blocks A6 and the plurality of protruding blocks B7, so that the thickness of the sealing gasket 5 is uniform, the tail end of the sealing gasket 5 is in contact with the protruding portion of the positioning ring 8, the protruding blocks A6 and the protruding blocks B7 are mutually extruded to form a sealing structure, at the moment, the protruding blocks A6 and the protruding blocks B7 can extrude the sealing gasket 5 to deform, the protruding blocks A6, the protruding blocks B7 and the sealing gasket 5 are annular, the sealing structure is formed between the protruding blocks A6 and the protruding blocks B7 and the sealing gasket 5, a plurality of sealing points are formed between the protruding blocks A6 and the protruding blocks B7, so that the sealing effect is improved, when the water pressure is increased suddenly, the sealing points are difficult to break through, and when the connecting pipe B2 moves to the joint B302, the joint B302 is in threaded connection with the connecting pipe B2 through the rotary joint B302, and the fixation between the connecting pipe A1 and the connecting pipe B2 is realized.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A sealing structure of a water supply pipeline joint comprises a connecting pipeline A (1) and a connecting pipeline B (2) and is characterized in that the outer surface of the connecting pipeline A (1) is of a protruding structure, the connecting pipeline A (1) and the connecting pipeline B (2) are fixed through a connector (3), a cavity (4) is formed between one ends, close to each other, of the connecting pipeline A (1) and the connecting pipeline B (2), a positioning ring (8) and a sealing gasket (5) used for folding are arranged in the cavity (4), one end of the sealing gasket (5) is clamped between the connecting pipeline A (1) and the positioning ring (8), and a lug A (6) and a lug B (7) used for extruding the sealing gasket (5) are fixedly connected to the inner wall of the connecting pipeline B (2) and the outer surface of the connecting pipeline A (1) respectively.

2. A sealing structure of a water supply pipe joint according to claim 1, wherein one end of the gasket (5) is tapered.

3. A sealing structure of a water supply pipe joint according to claim 1, wherein the joint (3) comprises a joint A (301) and a joint B (302), and the joint B (302) is rotatably connected with the joint A (301) and is screwed with the connecting pipe B (2).

4. A sealing structure of a water supply pipeline joint according to claim 1, wherein one end of the positioning ring (8) is in contact with the connecting pipeline A (1), the other end of the positioning ring is tightly attached to the sealing gasket (5), and the inner ring and the outer ring of the positioning ring (8) are both in contact with the folded sealing gasket (5).

5. A sealing structure of a water supply pipe joint according to claim 1, wherein the projection A (6) and the projection B (7) are both annular in shape and arc in cross section.

6. A sealing structure of a water supply pipe joint according to claim 1, wherein the number of the projections A (6) and the projections B (7) is plural.

7. A sealing structure of a water supply pipe joint according to claim 1, wherein the thickness of the plurality of projections A (6) is sequentially increased, and the thickness of the plurality of projections B (7) is sequentially decreased.

8. A sealing structure of a water supply pipe joint according to claim 1, wherein the positioning ring (8) is provided in a convex structure at an end close to the joint A (301).