Sealing structure of water supply pipeline joint

Abstract

The utility model provides a sealing structure of a water supply pipeline joint, and relates to the field of water supply pipelines. The sealing structure of the water supply pipeline connector comprises a connecting pipeline A and a connecting pipeline B. The connecting pipeline A and the connecting pipeline B are fixed through a connector, a cavity is formed between the ends, close to each other, of the connecting pipeline A and the connecting pipeline B, and a positioning ring and a sealing gasket used for folding are arranged in the cavity. And one end of the sealing gasket is clamped between the connecting pipeline A and the positioning ring. According to the sealing structure of the water supply pipeline connector, one end of the sealing gasket is conical, in the installation process of the connector A and the connector B, the connector B can push the sealing gasket to be folded, the folded sealing gasket can be compressed through the protruding blocks A and the protruding blocks B, a plurality of sealing points are formed, and the sealing effect is improved. The protruding block A and the protruding block B are tightly extruded with the sealing gasket all the time, when water pressure suddenly increases, the protruding block A and the protruding block B are difficult to break through a plurality of sealing points, overall installation is convenient and fast, and the sealing performance is good.

Description

Technical Field

[0001] The utility model relates to the field of water supply pipelines, in particular to a sealing structure of a water supply pipeline joint. Background Art

[0002] Water supply pipelines are important facilities for transporting water resources and play a vital role in urban construction and people's daily lives. Pipe joints are key components connecting water supply pipelines. Their performance directly affects the reliability and sealing of the water supply system. In the water supply system, the sealing performance of pipe joints is crucial.

[0003] During the installation process of the sealing structure of the traditional water supply pipe joint, the sealing ring is put on the connecting end of the water pipe, and then the water pipe is inserted into the direct joint used to connect the water pipe. The joint is tightened with a wrench or pipe clamp to achieve a sealing effect. For pipelines with higher water pressure, traditional joints need to increase the tightening force to meet the water pressure requirements to prevent leakage caused by loose connections. However, this will cause the sealing ring to be subjected to excessive force and deform inward, and the squeezed part of the sealing ring is easily broken by the force, causing water leakage. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a sealing structure for a water supply pipe joint, which is quick and easy to install as a whole, has good sealing performance, and prevents water from overflowing due to deformation of the sealing gasket.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sealing structure of a water supply pipe joint, including a connecting pipe A and a connecting pipe B, the outer surface of the connecting pipe A is set as a convex structure, the connecting pipe A and the connecting pipe B are fixed by a connecting head, 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 stuck between the connecting pipe A and the positioning ring, and the inner wall of the connecting pipe B and the outer surface of the connecting pipe A are respectively fixedly connected with a protrusion A and a protrusion B for squeezing the sealing gasket.

[0006] Preferably, one end of the sealing gasket is tapered.

[0007] Preferably, the connector includes a connector A and a connector B, and the connector B is rotatably connected to the connector A and is threadedly connected to the connecting pipe B.

[0008] Preferably, one end of the positioning ring contacts the connecting pipe A, and the other end fits tightly with the sealing gasket, and both the inner ring and the outer ring of the positioning ring contact the folded sealing gasket.

[0009] Preferably, the bump A and the bump B are both ring-shaped, and their cross sections are both arc-shaped.

[0010] Preferably, the number of the bumps A and the number of the bumps B are both set to be several.

[0011] Preferably, the thicknesses of the plurality of bumps A increase successively, and the thicknesses of the plurality of bumps B decrease successively.

[0012] Preferably, the end of the positioning ring close to the connector A is configured as a raised structure.

[0013] Compared with the prior art, the present invention has the following beneficial effects: one end of the sealing gasket is set in a conical shape, which helps the joint B to push the sealing gasket to fold during the installation process of joint A and joint B. The folded sealing gasket can be compressed by several protrusions A and protrusions B to form multiple sealing points, which are used to improve the overall sealing performance. The protrusions A and protrusions B are always tightly squeezed with the sealing gasket. When the water pressure suddenly increases or is used for a long time, it is difficult for moisture to break through the multiple sealing points and cause overflow. Moreover, the overall installation is convenient and quick, and the sealing performance is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the front view of the connecting pipe A and the connecting pipe B of the present invention;

[0016] Figure 3 This is a schematic diagram of the sealing gasket structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the bump A of the utility model;

[0018] Figure 5 This is a schematic diagram of the prior art sealing ring of the utility model in an extruded state.

[0019] Among them: 1. Connecting pipe A; 2. Connecting pipe B; 3. Connector; 301. Connector A; 302. Connector B; 4. Cavity; 5. Sealing gasket; 6. Bump A; 7. Bump B; 8. Positioning ring; 9. Sealing ring. DETAILED DESCRIPTION

[0020] like Figure 1-Figure 5As shown, a sealing structure of a water supply pipe joint includes a connecting pipe A1 and a connecting pipe B2. The connecting pipe A1 and the connecting pipe B2 are fixed by a connector 3. The outer surface of the connecting pipe A1 is set as a convex structure. The connector 3 includes a connector A301 and a connector B302. The connector B302 is rotatably connected to the connector A301 and is threadedly connected to the connecting pipe B2. It is convenient to fix the connecting pipe A1 and the connecting pipe B2 by rotating the connector B302. A cavity 4 is formed between the ends close to each other, and a positioning ring 8 and a sealing gasket 5 for folding are provided in the cavity 4. The sealing gasket 5 is made of soft material and has elasticity. One end of the sealing gasket 5 is tapered, which is convenient for the connecting pipe B2 to push the sealing gasket 5 to fold, so as to improve the installation speed of the sealing gasket 5. The end of the positioning ring 8 close to the joint A301 is set as a convex structure, and one end of the sealing gasket 5 is stuck in the gap between the connecting pipe A1 and the positioning ring 8. One end of the positioning ring 8 is in contact with the connecting pipe A1, and the other end is tightly connected to the sealing gasket 5. The inner and outer rings of the positioning ring 8 are in close contact with the folded sealing gasket 5. The positioning ring 8 can provide support for the sealing gasket 5 to improve the stability of the sealing gasket 5. The inner wall of the connecting pipe B2 and the outer surface of the connecting pipe A1 are respectively fixedly connected with a convex block A6 and a convex block B7 for squeezing the sealing gasket 5. The convex blocks A6 and B7 are both ring-shaped, and their cross-sections are both arc-shaped. When the convex blocks A6 and B7 squeeze the sealing gasket 5 and deform it, a sealing structure can be formed in an annular manner, thereby improving the sealing range. The convex blocks A6 and B7 are respectively fixedly connected with the inner wall of the connecting pipe B2 and the outer surface of the connecting pipe A1. and the protrusion B7, the number of the protrusions A6 and the protrusion B7 is set to be several, the thickness of the several protrusions A6 increases successively, and the thickness of the several protrusions B7 decreases successively, the thickness of the protrusion A6 close to the connecting pipe A1 is greater than the thickness of the protrusion A6 far away from the connecting pipe A1, and the thickness of the protrusion B7 close to the connecting pipe A1 is less than the thickness of the protrusion B7 far away from the connecting pipe A1. During installation, the several protrusions A6 and the protrusion B7 compress the sealing gasket 5 more evenly, so that the thickness of the sealing gasket 5 is more uniform.

[0021] Working principle:

[0022] like Figure 5 As shown, during the installation process of the sealing structure of the traditional water supply pipe joint, the sealing ring 9 is put on the connecting end of the water pipe, and then the water pipe is inserted into the direct connector used to connect the water pipe. The joint is tightened with a wrench or a pipe clamp to achieve a sealing effect. For pipelines with high water pressure, the traditional joint needs to increase the tightening force to meet the water pressure requirements to prevent leakage caused by loose connection. However, this will cause the sealing ring 9 to be subjected to excessive force and deform inward, and the squeezed part of the sealing ring 9 is easily broken by the force, thereby causing water leakage.

[0023] like Figures 1-4As shown, first, the connector A301 is put on the outer surface of the connecting pipe A1, and the outer surface of the connecting pipe A1 is set to a convex structure, so that the connector A301 can be buckled with the connecting pipe A1. At this time, the connector A301 is in close contact with the connecting pipe A1, and then the positioning ring 8 is put on the end of the sealing gasket 5 close to the connecting pipe A1, and then the sealing gasket 5 is put on the outer surface of the connecting pipe A1, so that the sealing gasket 5 is in close contact with the connecting pipe. Then, the connecting pipe B2 is pressed against the tapered end of the sealing gasket 5 and put on the outside of the positioning ring 8. During this process, the connecting pipe B2 will push the tapered end of the sealing gasket 5 to fold toward the outside of one end of the sealing gasket 5. Since the sealing gasket 5 is made of soft material and has elasticity, on the one hand, the tapered end of the sealing gasket 5 is easier to fold to the outer circle of the positioning ring 8, and on the other hand, as shown in FIG. Figure 2 As shown, the several protrusions A6 inside the connecting pipe B2 can squeeze the sealing gasket 5 and move along the outermost circle of the sealing gasket 5. The protrusions A6 will squeeze the sealing gasket 5 to cause deformation. When the several protrusions A6 move along the outermost circle of the sealing gasket 5, the protrusions A6 squeeze the sealing gasket 5, causing the sealing gasket 5 to stretch. In the process of movement of the sealing gasket 5, the protrusions A6 will squeeze the sealing gasket 5 in the direction close to the connecting pipe A1, so that the closer the sealing gasket 5 is to the joint A301, the thicker the part. Therefore, the thickness of the several protrusions A6 is increased in sequence, and the thickness of the protrusions A6 close to the connecting pipe A1 is smaller. Similarly, when the sealing gasket 5 is sleeved on the outer surface of the connecting pipe A1, the thickness of the several protrusions B7 decreases in sequence, and the thickness of the protrusions A6 away from the connecting pipe A1 is smaller, so that the several protrusions A6 and Several bumps B7 compress the sealing gasket 5 more evenly, so that the thickness of the sealing gasket 5 is more uniform. After the tail end of the sealing gasket 5 contacts the raised part of the positioning ring 8, the two squeeze each other to form a sealing structure. At this time, since the bumps A6 and the bumps B7 squeeze the sealing gasket 5 to cause deformation, the bumps A6, the bumps B7 and the sealing gasket 5 are all ring-shaped, and sealing structures are formed between the bumps A6 and the bumps B7 and the sealing gasket 5. Multiple sealing points will be formed between the several bumps A6 and the bumps B7 and the sealing gasket 5 to improve the sealing effect. When the water pressure suddenly increases, it is difficult to break through the multiple sealing points. When the connecting pipe B2 moves to the joint B302, the joint B302 can be threadedly connected to the connecting pipe B2 through the rotating joint B302 to achieve fixation between the connecting pipe A1 and the connecting pipe B2.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for a water supply pipe joint, comprising a connecting pipe A (1) and a connecting pipe B (2), characterized in that: The outer surface of the connecting pipe A (1) is provided with a raised structure. The connecting pipe A (1) and the connecting pipe B (2) are fixed by a connector (3). A cavity (4) is formed between the ends of the connecting pipe A (1) and the connecting pipe B (2) that are close to each other. A positioning ring (8) and a sealing gasket (5) for folding are provided in the cavity (4). One end of the sealing gasket (5) is inserted between the connecting pipe A (1) and the positioning ring (8). A convex block A (6) and a convex block B (7) for pressing the sealing gasket (5) are fixedly connected to the inner wall of the connecting pipe B (2) and the outer surface of the connecting pipe A (1), respectively.

2. The sealing structure of a water supply pipe joint according to claim 1, characterized in that: One end of the sealing gasket (5) is in a cone shape.

3. The sealing structure of a water supply pipe joint according to claim 1, characterized in that: The connector (3) comprises a connector A (301) and a connector B (302), wherein the connector B (302) is rotatably connected to the connector A (301) and is threadedly connected to the connecting pipe B (2).

4. The sealing structure of a water supply pipe joint according to claim 1, characterized in that: One end of the positioning ring (8) contacts the connecting pipe A (1), and the other end is tightly fitted with the sealing gasket (5). The inner ring and the outer ring of the positioning ring (8) both contact the folded sealing gasket (5).

5. The sealing structure of a water supply pipe joint according to claim 1, characterized in that: The protrusion A (6) and the protrusion B (7) are both ring-shaped, and their cross sections are both arc-shaped.

6. The sealing structure of a water supply pipe joint according to claim 1, characterized in that: The number of the bumps A (6) and the number of the bumps B (7) are both set to be several.

7. The sealing structure of a water supply pipe joint according to claim 1, characterized in that: The thicknesses of the plurality of protrusions A (6) increase in sequence, and the thicknesses of the plurality of protrusions B (7) decrease in sequence.

8. The sealing structure of a water supply pipe joint according to claim 1, characterized in that: One end of the positioning ring (8) close to the connector A (301) is configured as a raised structure.

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