Sealing structure for pipeline connection

By designing the structure of the first and second connectors, and combining the contact and movement of the sealant, the problems of sealant aging and inconvenient disassembly in traditional nut connections are solved, achieving both durable sealing effect and ease of disassembly.

CN223579275UActive Publication Date: 2025-11-21XIN XING JI HUA (HE BEI) NONG YI SHENG TAI YOU XIAN GONG SI
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Patent Information

Application Number
CN202423199083.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-11-21
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

Traditional nut connections with sealant suffer from sealant aging issues and are difficult to disassemble.

Method used

The structure of the first and second connectors is adopted. Through the threaded connection, combined with the contact and movement of the first and second seals, the sealing part can be flexibly adjusted, avoiding the aging of the sealant and simplifying the disassembly process.

Benefits of technology

It achieves durable sealing effect and easy disassembly, avoids the problem of sealant aging, and improves the reliability of pipe connections and maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223579275U_ABST
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Abstract

The utility model relates to the technical field of pipeline connection, and provides a sealing structure for pipeline connection, which comprises a first water pipe, a first connecting piece rotationally and movably arranged at one end of the first water pipe, a first clamping platform and a second clamping inclined plane are arranged in the first connecting piece, and one end of a first sealing piece is arranged on the first clamping platform. After the sealing part of the first sealing piece abuts against the second clamping inclined face, liquid in the first water pipe stops flowing, the second connecting piece and the first connecting piece are of the same structure, the second sealing piece and the first sealing piece are of the same structure, one end of the second sealing piece is arranged on the first clamping platform, and the other end of the second sealing piece is arranged on the second clamping platform. According to the technical scheme, the problem that in the prior art, a mode that a traditional nut is connected with a sealant in a matched mode is solved, the sealing performance of the nut is improved, and the sealing performance of the nut is improved. The sealant is aged after a long time, and the disassembly of the connection part is troublesome.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connection technical field, specifically, relate to a sealing structure of pipeline connection. BACKGROUND

[0002] In the existing water pipe sealing connection device, the traditional nut connection cooperates with the sealing glue mode, although it is relatively easy to operate in many applications, but with the passage of time, indeed exposes some disadvantages and limitations, so that the operation time is long and there is a problem of aging of the sealing glue, and the disassembly of the connection is troublesome. SUMMARY

[0003] The utility model provides a sealing structure of pipeline connection, solve the traditional nut connection of related art in cooperation with the sealing glue mode, time is long and there is a problem of aging of the sealing glue, and the disassembly of the connection is troublesome.

[0004] The technical scheme of the utility model is as follows:

[0005] A sealing structure of pipeline connection is used for the sealing of pipeline connection, comprising:

[0006] A first water pipe,

[0007] A first connecting piece is rotatably and movably arranged at one end of the first water pipe, the first connecting piece has a first clamping platform and a second clamping inclined surface,

[0008] A first sealing piece is arranged at one end of the first clamping platform, the first sealing piece has a sealing part, the sealing part is slidably arranged in the first sealing piece, and the liquid in the first water pipe stops flowing after the sealing part abuts against the second clamping inclined surface,

[0009] A third connecting piece is movably arranged at one end of the first connecting piece,

[0010] A second connecting piece is movably arranged at the other end of the third connecting piece, the second connecting piece and the first connecting piece have the same structure,

[0011] A second sealing piece has the same structure as the first sealing piece and is oppositely arranged, one end of the second sealing piece is arranged on the first clamping platform of the second connecting piece, the sealing part of the second sealing piece abuts against the second clamping inclined surface of the second connecting piece, and the sealing parts of the first sealing piece and the second sealing piece move towards the first connecting piece and the second connecting piece respectively after the first sealing piece and the second sealing piece abut against each other, and the first connecting piece and the second connecting piece are communicated.

[0012] Optionally, the first clamping platform is arranged in the middle of the first connecting part, and the second clamping slope is arranged on the side of the first clamping platform away from the first water pipe, and a flow space is formed between the first clamping platform and the second clamping slope.

[0013] Optionally, the first sealing member comprises:

[0014] a gasket arranged on the first clamping platform,

[0015] a connecting block arranged on the gasket away from the first clamping platform, a surface of the connecting block having a plurality of water through holes, and a top block arranged in the middle of the connecting block, the top block having a first through hole in the center,

[0016] a first spring having one end abutting against the connecting block, the first spring being in a compressed state,

[0017] a moving rod slidingly arranged in the first through hole,

[0018] a plug arranged on the end of the moving rod away from the first water pipe, the other end of the first spring abutting against the plug, and the sealing part being arranged on the plug.

[0019] Optionally, the first sealing member further comprises:

[0020] a sealing ring arranged on the plug, the sealing ring abutting against the second clamping slope.

[0021] Optionally, the third connecting member comprises:

[0022] a fixed pipe arranged on the end of the first connecting member away from the first water pipe, the fixed pipe having a third clamping plane arranged on the outer side in the middle of the fixed pipe, and an inner wall of the fixed pipe having a plurality of second through holes, the second through holes having third clamping slopes with openings facing outward,

[0023] a second spring having one end abutting against the third clamping plane,

[0024] a plurality of balls, the plurality of balls being movably arranged in the plurality of second through holes, the balls abutting against the third clamping slopes,

[0025] a sliding pipe slidingly arranged on the outer side of the fixed pipe, the sliding pipe having a fourth clamping plane on the end of the sliding pipe away from the first water pipe, the other end of the second spring abutting against the fourth clamping plane, and the sliding pipe having a fifth clamping plane abutting against the balls,

[0026] A limiting table is arranged at the end of the fixed pipe away from the first connector, and the sliding pipe abuts against the limiting table after sliding,

[0027] A sealing gasket is arranged on the limiting table, and the sealing gasket is used for abutting against the second connector.

[0028] Optionally, a moving space is formed inside the fixed pipe, the second connector is movably arranged in the moving space, and the second connector has a fourth clamping inclined surface on the outer side, which abuts against the ball.

[0029] Optionally, the plug has a top surface at the end away from the first spring, and after the top surface of the second sealing element abuts against the top surface of the first sealing element, the sealing ring of the second sealing element and the first sealing element no longer abut against the second clamping inclined surface, and the water through hole in the first connector and the second connector is in communication.

[0030] Optionally, the utility model further comprises:

[0031] A second water pipe is arranged at the end of the second connector away from the first connector.

[0032] Optionally, the utility model further comprises:

[0033] A base is arranged on a workbench,

[0034] A three-way valve is arranged on the base, and the other end of the first water pipe is arranged on the three-way valve,

[0035] A third water pipe penetrates through the three-way valve, and the third water pipe has a water outlet, which is in communication with the first water pipe.

[0036] The working principle and beneficial effects of the utility model are as follows:

[0037] The utility model discloses, in order to solve the traditional nut connection cooperation sealant mode of relevant technical, long time can have the problem of sealant aging, and the disassembly connection is more troublesome, set up first connecting piece on first water pipe, and first connecting piece is connected through the thread and first water pipe, set up first sealing element in first connecting piece, and first sealing element sets up on first clamping platform, when needing water flow, the sealing portion of second sealing element and first sealing element abuts each other and presses down, after that, the sealing portion of first sealing element and second sealing element no longer abuts with second clamping slope, after that, the sealing portion of first sealing element and second sealing element moves respectively towards first connecting piece and second connecting piece, after that, first connecting piece and second connecting piece are communicated, and the liquid in first water pipe can flow to the one end of second connecting piece away from first water pipe, and third connecting piece is used to connect first connecting piece and second connecting piece. BRIEF DESCRIPTION OF DRAWINGS

[0038] The above-mentioned features, technical characteristics, advantages and implementation modes of the utility model will be further explained in the following explicit and understandable way, combined with the preferred embodiments and the drawings.

[0039] Figure 1 It is the structure schematic drawing of the utility model;

[0040] Figure 2 It is the sectional view of the utility model;

[0041] Figure 3 It is the sectional view of first connecting piece of the utility model;

[0042] Figure 4 It is the sectional view of first sealing portion of the utility model;

[0043] Figure 5 It is the structure schematic drawing of sealing element of the utility model;

[0044] Figure 6 It is the sectional view of third connecting piece of the utility model;

[0045] Figure 7 It is the structure schematic drawing of sphere of the utility model.

[0046] In the figure: 1, the first water pipe, 2, the first connecting piece, 201, the first clamping platform, 202, the second clamping inclined surface, 3, the first sealing piece, 301, the sealing part, 4, the third connecting piece, 5, the second connecting piece, 6, the second sealing piece, 7, the flow space, 302, the gasket, 303, the connecting block, 304, the water hole, 305, the top block, 306, the first through hole, 307, the first spring, 308, the moving rod, 309, the plug, 310, the sealing ring, 401, the fixed tube, 402, the third clamping plane, 403, the second through hole, 404, the third clamping inclined surface, 405, the second spring, 406, the ball, 407, the sliding tube, 408, the fourth clamping plane, 409, the fifth clamping plane, 410, the limiting table, 411, the sealing gasket, 8, the moving space, 501, the fourth clamping inclined surface, 311, the top surface, 9, the second water pipe, 10, the base, 11, the three-way valve, 12, the third water pipe. DETAILED DESCRIPTION

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings and embodiments according to these drawings without creating any creative labor.

[0048] In order to make the drawing simple, only the parts related to the present application are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0049] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In addition, in the description of the present application, the terms "first", "second" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.

[0051] Reference Figures 1-7For the first embodiment of the utility model, propose a sealed structure of pipeline connection for the sealing of pipeline connection, including: first water pipe 1, first connecting piece 2 rotation and mobile setting in first water pipe 1 one end, first connecting piece 2 inside has first clamping platform 201 and second clamping inclined plane 202, first sealing element 3 one end setting in first clamping platform 201, first sealing element 3 has sealing part 301, sealing part 301 slidingly sets in first sealing element 3, after sealing part 301 and second clamping inclined plane 202 abut, the liquid in first water pipe 1 stops circulation, third connecting piece 4 one end mobile setting in first connecting piece 2 one end, second connecting piece 5 mobile setting in third connecting piece 4 other end, second connecting piece 5 and first connecting piece 2 have the same structure, second sealing element 6 and first sealing element 3 have the same structure and are oppositely arranged, second sealing element 6 one end setting in the first clamping platform 201 of second connecting piece 5, the sealing part 301 of second sealing element 6 and the second clamping inclined plane 202 of second connecting piece 5 abut, after first sealing element 3 and second sealing element 6 abut, first sealing element 3 and second sealing element 6 move towards first connecting piece 2 and second connecting piece 5 respectively, first connecting piece 2 and second connecting piece 5 are communicated.

[0052] In the embodiment, in order to solve the problems of aging of the sealant and difficulty in disassembling the connection part in the conventional nut connection and sealant cooperation mode in the related art, the first connecting piece 2 is arranged on the first water pipe 1, the first connecting piece 2 is connected with the first water pipe 1 through threads, the first sealing element 3 is arranged in the first connecting piece 2, the first sealing element 3 is arranged on the first clamping platform 201, when water flow is needed, the sealing part 301 of the second sealing element 6 and the first sealing element 3 abut each other and are pressed downward, then the sealing part 301 of the first sealing element 3 and the second sealing element 6 no longer abuts the second clamping inclined plane, then the sealing part 301 of the first sealing element 3 and the second sealing element 6 moves towards the first connecting piece 2 and the second connecting piece 5 respectively, then the first connecting piece 2 and the second connecting piece 5 are communicated, and the liquid in the first water pipe 1 can flow to the end of the second connecting piece 5 away from the first water pipe 1, and the third connecting piece 4 is used to connect the first connecting piece 2 and the second connecting piece 5.

[0053] Further, the first clamping platform 201 is arranged in the middle of the first connecting piece 2, the second clamping inclined plane 202 is arranged on the side of the first clamping platform 201 away from the first water pipe 1, and the flow space 7 is formed between the first clamping platform 201 and the second clamping inclined plane 202.

[0054] In the embodiment, the first clamping platform 201 is arranged inside the first connecting piece 2, the first sealing piece 3 or the second sealing piece 6 is placed on the first clamping platform 201, and the second clamping inclined surface 202 is also arranged inside the first connecting piece 2. After the sealing part 301 of the first sealing piece 3 or the second sealing piece 6 abuts against the second clamping inclined surface 202, the first sealing piece 3 and the second sealing piece 6 are sealed.

[0055] Further, the first sealing piece 3 comprises a gasket 302, the gasket 302 is arranged on the first clamping platform 201, a connecting block 303 is arranged on the gasket 302 away from the first clamping platform 201, the connecting block 303 has a plurality of water passing holes 304 on the surface, a top block 305 is arranged in the middle of the connecting block 303, the top block 305 has a first through hole 306 in the center, one end of a first spring 307 abuts against the connecting block 303, the first spring 307 is in a compressed state, a moving rod 308 is slidingly arranged in the first through hole 306, a plug 309 is arranged on the end of the moving rod 308 away from the first water pipe 1, the other end of the first spring 307 abuts against the plug 309, and the sealing part 301 is located on the plug 309.

[0056] In the embodiment, in order to ensure that the first sealing piece 3 or the second sealing piece 6 can block the water flow, the gasket 302 and the connecting block 303 are arranged, the gasket 302 is arranged on the first clamping platform 201 to prevent the connecting block 303 from directly contacting the first connecting piece 2 and causing abrasion, a plurality of water passing holes 304 are arranged on the first connecting block 303, the plurality of water passing holes 304 are arranged in a circumferential array, the water in the first water pipe 1 enters the flow space 7 through the water passing holes 304, the top block 305 is arranged on the connecting block 303, the first spring 307 is arranged around the top block 305, the first spring 307 is in a compressed state, in the normal state, the first spring 307 pushes against the plug 309, and the sealing part 301 of the plug 309 abuts against the second clamping inclined surface 202 to block the water flow.

[0057] Further, the first sealing piece 3 further comprises a sealing ring 310, the sealing ring 310 is arranged on the plug 309, and the sealing ring 310 abuts against the second clamping inclined surface 202.

[0058] In the embodiment, in order to further seal the water flow in the flow space 7, the sealing ring 310 is arranged, and the sealing ring 310 also abuts against the second clamping inclined surface 202.

[0059] Further, the third connecting piece 4 comprises a fixed tube 401, which is arranged at the end of the first connecting piece 2 away from the first water pipe 1. The fixed tube 401 is provided with a third clamping plane 402 in the middle of the outer side. The inner wall of the fixed tube 401 is provided with a plurality of second through holes 403, which are provided with third clamping inclined surfaces 404 opening outward. One end of the second spring 405 abuts against the third clamping plane 402. A plurality of spherical bodies 406 are movably arranged in the plurality of second through holes 403 and abut against the third clamping inclined surfaces 404. A sliding tube 407 is slidably arranged on the outer side of the fixed tube 401. The sliding tube 407 is provided with a fourth clamping plane 408 at the end away from the first water pipe 1. The other end of the second spring 405 abuts against the fourth clamping plane 408. The sliding tube 407 is provided with a fifth clamping plane 409, which abuts against the spherical bodies 406. A limiting table 410 is arranged at the end of the fixed tube 401 away from the first connecting piece 2. The sliding tube 407 abuts against the limiting table 410 after sliding. A sealing gasket 411 is arranged on the limiting table 410 and used to abut against the second connecting piece 5.

[0060] In the embodiment, the third connecting piece 4 is arranged between the first connecting piece 2 and the second connecting piece 5 to connect the first connecting piece 2 and the second connecting piece 5. The second spring 405 of the third connecting piece 4 is arranged on the third clamping plane 402 and the limiting table 410 and is in a compressed state. The fifth clamping plane 409 is arranged to clamp the spherical bodies 406 in the second through holes 403 from falling off. The sealing gasket 411 is arranged to prevent water from flowing out of the gap between the second connecting piece 5 and the first connecting piece 2 after the second connecting piece 5 is connected to the first connecting piece 2.

[0061] Further, the inside of the fixed tube 401 forms a moving space 8, in which the second connecting piece 5 is movably arranged. The outer side of the second connecting piece 5 is provided with a fourth clamping inclined surface 501, which abuts against the spherical bodies 406.

[0062] In the embodiment, the second connecting piece 5 is inserted into the moving space 8 when the sliding tube 407 is pulled to move towards the first water pipe 1, so that the second connecting piece 5 is not loosened after being connected to the first connecting piece 2. Then, the sliding tube 407 is released. The fourth clamping inclined surface 501 of the sliding tube 407 abuts against the spherical bodies 406. The spherical bodies 406 protrude from the other end of the second through hole 403 and abut against the fourth clamping inclined surface 501 to clamp the second connecting piece 5.

[0063] Further, the plug 309 is provided with a top surface 311 at the end away from the first spring 307. The top surface 311 of the second sealing member 6 abuts against the top surface 311 of the first sealing member 3. The sealing ring 310 of the second sealing member 6 and the first sealing member 3 no longer abut against the second clamping inclined surface 202. The water through hole 304 in the first connecting piece 2 and the second connecting piece 5 are in communication.

[0064] In the embodiment, the top surfaces 311 of the first sealing member 3 and the second sealing member 6 abut against each other, and then the sealing portions 301 and the sealing rings 310 of the first sealing member 3 and the second sealing member 6 do not abut against the second clamping inclined surface 202, and then the flow space 7 of the first connecting member 2 and the second connecting member 5 is communicated, and the water in the first water pipe 1 flows to the other end of the second connecting member 5.

[0065] Further, the second water pipe 9 is further included, and the second water pipe 9 is arranged at the end of the second connecting member 5 away from the first connecting member 2.

[0066] In the embodiment, the second water pipe 9 is arranged, one end of the second water pipe 9 is connected to the second connecting member 5, and the other end is connected to the water-using equipment, the water flows from the first water pipe 1 to the second water pipe 9 through the flow space 7 of the first connecting member 2 and the second connecting member 5, and finally enters the water-using equipment.

[0067] Further, the base 10 is further included, the base 10 is arranged on the workbench, the three-way valve 11 is arranged on the base 10, the other end of the first water pipe 1 is arranged on the three-way valve 11, the third water pipe 12 penetrates through the three-way valve 11, and the third water pipe 12 has a water outlet, the water outlet and the first water pipe 1 are communicated.

[0068] In the embodiment, the base 10 is arranged, the three-way valve 11 and the third water pipe 12 are arranged on the base 10, the water flows in the third water pipe 12, the water outlet is arranged at the intersection of the third water pipe 12 and the three-way valve 11, the first water pipe 1 and the water outlet are communicated, and the three-way valve 11 is used to fix the connection between the first water pipe 1 and the third water pipe 12.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A sealing structure of a pipe connection, characterized by, A sealing for pipe connection, comprising: a first water pipe (1), a first connector (2) rotatably and movably arranged at one end of the first water pipe (1), the first connector (2) having a first clamping platform (201) and a second clamping inclined surface (202) inside, a first sealing member (3) arranged at one end of the first clamping platform (201), the first sealing member (3) having a sealing part (301) slidably arranged inside the first sealing member (3), the liquid in the first water pipe (1) being stopped from flowing after the sealing part (301) abuts against the second clamping inclined surface (202), a third connector (4) movably arranged at one end of the first connector (2), a second connector (5) movably arranged at the other end of the third connector (4), the second connector (5) having the same structure as the first connector (2), a second sealing member (6) having the same structure as the first sealing member (3) and oppositely arranged, the second sealing member (6) being arranged at one end of the first clamping platform (201) of the second connector (5), the sealing part (301) of the second sealing member (6) abutting against the second clamping inclined surface (202) of the second connector (5), the sealing parts (301) of the first sealing member (3) and the second sealing member (6) moving towards the first connector (2) and the second connector (5) respectively after the first sealing member (3) and the second sealing member (6) abut against each other, and the first connector (2) and the second connector (5) being communicated.

2. A seal for a pipe connection according to claim 1, characterised in that The first clamping platform (201) is arranged inside the first connector (2) in the middle, and the second clamping inclined surface (202) is arranged on the side of the first clamping platform (201) away from the first water pipe (1), and a flow space (7) is formed between the first clamping platform (201) and the second clamping inclined surface (202).

3. A seal for a pipe connection according to claim 1, wherein The first sealing member (3) comprises: a gasket (302) arranged on the first clamping platform (201), a connecting block (303) arranged on the gasket (302) away from the first clamping platform (201), the connecting block (303) having a plurality of water through holes (304) on the surface, a top block (305) being arranged in the middle of the connecting block (303), the top block (305) having a first through hole (306) in the center, a first spring (307) abutting against one end of the connecting block (303), the first spring (307) being in a compressed state, a moving rod (308) slidably arranged in the first through hole (306), A plug (309) is arranged at one end of the moving rod (308) away from the first water pipe (1), the other end of the first spring (307) abuts against the plug (309), and the sealing part (301) is located on the plug (309).

4. A seal for a pipe connection according to claim 3, wherein The first sealing part (3) further comprises: A sealing ring (310) is arranged on the plug (309), and the sealing ring (310) abuts against the second clamping inclined surface (202).

5. A seal for a pipe connection according to claim 4, wherein The third connecting part (4) comprises: A fixed tube (401) is arranged at one end of the first connecting part (2) away from the first water pipe (1), a third clamping plane (402) is arranged on the outer side of the middle of the fixed tube (401), the inner wall of the fixed tube (401) has a plurality of second through holes (403), the second through holes (403) have third clamping inclined surfaces (404) with openings outward, A second spring (405) has one end abutting against the third clamping plane (402), A plurality of spherical bodies (406) are movably arranged in the plurality of second through holes (403), and the spherical bodies (406) abut against the third clamping inclined surfaces (404), A sliding tube (407) is slidably arranged on the outer side of the fixed tube (401), the sliding tube (407) has a fourth clamping plane (408) at one end away from the first water pipe (1), the other end of the second spring (405) abuts against the fourth clamping plane (408), the sliding tube (407) has a fifth clamping plane (409) abutting against the spherical bodies (406), A limiting table (410) is arranged at one end of the fixed tube (401) away from the first connecting part (2), and the sliding tube (407) abuts against the limiting table (410) after sliding, A sealing gasket (411) is arranged on the limiting table (410), and the sealing gasket (411) is used to abut against the second connecting part (5).

6. A seal for a pipe connection according to claim 5, wherein The fixed tube (401) forms a moving space (8) inside, the second connecting part (5) is movably arranged in the moving space (8), the outer side of the second connecting part (5) has a fourth clamping inclined surface (501) abutting against the spherical bodies (406).

7. A seal for a pipe connection according to claim 6, wherein The plug (309) has a top surface (311) at one end away from the first spring (307), after the top surface (311) of the second sealing part (6) and the top surface (311) of the first sealing part (3) abut against each other, the sealing ring (310) of the second sealing part (6) and the first sealing part (3) no longer abuts against the second clamping inclined surface (202), and the water passing hole (304) in the first connecting part (2) and the second connecting part (5) is communicated.

8. A pipe coupling seal according to claim 1, wherein, Further comprising: A second water pipe (9) is arranged at one end of the second connecting piece (5) away from the first connecting piece (2).

9. A seal for a pipe connection according to claim 1, wherein Further comprising: A base (10) arranged on a workbench, A three-way valve (11) arranged on the base (10), and the other end of the first water pipe (1) is arranged on the three-way valve (11), A third water pipe (12) penetrating through the three-way valve (11), and the third water pipe (12) has a water outlet communicating with the first water pipe (1).