Connecting structure for building water supply and drainage pipeline

Abstract

The utility model discloses a connecting structure for building water supply and drainage pipelines, which comprises a first connecting pipe and a second connecting pipe, the outer side of the end part of the first connecting pipe is fixedly connected with a sealing sleeve, and a first threaded connecting mechanism is arranged between the end part of the first connecting pipe and the end part of the second connecting pipe; and a second threaded connecting mechanism is arranged between the inner side of the end part of the sealing sleeve and the outer side of the second connecting pipe. The connecting position of the first connecting pipe and the second connecting pipe is further sealed through the sealing sleeve, the sealing performance of the pipeline connecting structure is improved, the protection effect is achieved, the influence of external factors on the connecting position is reduced, butt joint of the first connecting pipe and the second connecting pipe is completed, and the sealing effect is good. And meanwhile, the extension ring on the outer side of the second connecting pipe is in threaded connection with the sealing sleeve to complete sealing, double-sealing butt joint is rapidly achieved, the sealing performance is excellent, operation is easy, the installation efficiency is high, the structure is simple, and the production cost is low.

Description

Technical Field

[0001] This utility model relates to the field of water supply and drainage pipeline technology, and in particular to a connection structure for building water supply and drainage pipelines. Background Technology

[0002] Building water supply and drainage pipes are an important component of building water supply and drainage systems. They are responsible for delivering clean drinking water or domestic water to users' water supply points, and for discharging wastewater, sewage, or rainwater from buildings, ensuring environmental hygiene and dryness. In building water supply and drainage systems, the pipe connection structure plays a crucial role. It not only relates to the system's safety, reliability, and service life, but also directly affects users' water usage experience and drainage efficiency. Therefore, selecting a suitable pipe connection structure is essential for the design and construction of building water supply and drainage systems.

[0003] Existing water supply and drainage pipe connection mechanisms often involve further sealing the outside of two pipes, resulting in complex structures and low installation efficiency.

[0004] A connection structure for water supply and drainage pipelines is disclosed in Chinese patent document CN219588394U. This connection structure includes a heat-fusion connector, a clamp, and two water supply and drainage pipe fittings. The heat-fusion connector has a through insertion hole that fits the water supply and drainage pipe fittings. The two water supply and drainage pipe fittings are coaxially arranged and located on opposite sides of the heat-fusion connector. Both water supply and drainage pipe fittings are inserted into the insertion hole of the heat-fusion connector, and the heat-fusion connector is heat-fused to both water supply and drainage pipe fittings. The clamp is clamped to both water supply and drainage pipe fittings and has a recessed placement groove. When the clamp is clamped to both water supply and drainage pipe fittings, the heat-fusion connector is located within the placement groove. This application improves the installation quality of water supply and drainage pipeline connections; however, the installation of this connection structure is complex and inconvenient to assemble.

[0005] To address the shortcomings of the existing technology, providing a connection structure for building water supply and drainage pipes is a problem worthy of research. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of complex structure and low installation efficiency, and to provide a connection structure for building water supply and drainage pipes, which achieves the technical effects of convenient installation and good sealing effect.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A connection structure for building water supply and drainage pipes includes a first connecting pipe and a second connecting pipe. A sealing sleeve is fixedly connected to the outer side of the end of the first connecting pipe. A first threaded connection mechanism is provided between the end of the first connecting pipe and the end of the second connecting pipe. A second threaded connection mechanism is provided between the inner side of the end of the sealing sleeve and the outer side of the second connecting pipe.

[0009] The end of the sealing sleeve is bent inward, and the inner diameter of the inwardly bent portion of the sealing sleeve is adapted to the outer diameter of the second connecting pipe.

[0010] The sealing sleeve has several dividing grooves on its inwardly bent portion. The dividing grooves are distributed in a ring at equal intervals at the end of the sealing sleeve. The inner side of the end of the sealing sleeve is made of alloy spring steel. The width of the dividing grooves is less than one millimeter, so that the port part of the sealing sleeve is separated without gaps, thereby giving the end of the sealing sleeve good sealing performance.

[0011] The second threaded connection mechanism includes an extension ring fixedly connected to the outside of the second connecting pipe, a second internal thread opened on the inside of the extension ring, and a second external thread opened on the outside of the sealing sleeve port.

[0012] The extension ring extends away from the end of the second connecting pipe. The inner diameter of the extension ring is adapted to the outer diameter of the sealing sleeve port. The second internal thread is adapted to the second external thread. The sealing sleeve further seals the connection between the first connecting pipe and the second connecting pipe, improves the sealing performance of the pipe connection structure, and plays a protective role in reducing the impact of external factors on the connection.

[0013] The first threaded connection mechanism includes a telescopic tube slidably connected to the outside of the end of the first connecting tube, a first internal thread opened on the inside of the end of the second connecting tube, and a first external thread opened on the outside of the end of the telescopic tube.

[0014] The first internal thread is adapted to the first external thread, and the first threaded connection mechanism and the second threaded connection mechanism have opposite thread directions, so that the rotation of the second connecting pipe can simultaneously achieve threaded connection in two different feed directions, thus achieving efficient sealing assembly.

[0015] The inner side of the telescopic tube is provided with several sliding grooves, and a limiting block is fixedly connected to the outer side of the end of the first connecting tube. The shape of the sliding groove is adapted to the limiting block, and the end of the sliding groove contacts the limiting block to limit it, so as to prevent the telescopic tube from detaching from the first connecting tube.

[0016] A compression spring is fixedly connected to the outside of the first connecting tube, and the end of the compression spring is fixedly connected to the end of the telescopic tube to prevent the telescopic tube from shrinking inward and affecting the threaded connection.

[0017] 1. The building's water supply and drainage pipes use a connecting structure with a sealing sleeve to further seal the connection between the first and second connecting pipes, thereby improving the sealing performance of the pipe connection structure and providing protection to reduce the impact of external factors on the connection.

[0018] 2. The building's water supply and drainage pipes use a connection structure where the first and second connecting pipes are connected together. At the same time, the extension ring on the outside of the second connecting pipe and the sealing sleeve are threaded together to achieve a seal, quickly achieving a double-seal connection. It has excellent sealing performance and is simple to operate and has high installation efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0022] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B;

[0023] Figure 5 This is a schematic diagram of the structure of the first connecting pipe of this utility model;

[0024] Figure 6 This is a cross-sectional structural diagram of the first connecting pipe of this utility model in the separated state;

[0025] Figure 7 This utility model Figure 6 Enlarged structural diagram at point C;

[0026] Figure 8 This utility model Figure 6 Enlarged structural diagram at point D;

[0027] Figure 9 This is a schematic diagram of the structure of the second connecting pipe of this utility model;

[0028] Figure 10 This is a cross-sectional structural diagram of the second connecting pipe of this utility model.

[0029] In the figure: 1-First connecting pipe, 2-Second connecting pipe, 3-Sealing sleeve, 4-Separating groove, 5-Extension ring, 6-Second internal thread, 7-Second external thread, 8-Telescopic pipe, 9-First internal thread, 10-First external thread, 11-Sliding groove, 12-Limiting block, 13-Compression spring. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example 1

[0031] like Figures 1 to 10 As shown, a connection structure for building water supply and drainage pipes includes a first connecting pipe 1 and a second connecting pipe 2. A sealing sleeve 3 is fixedly connected to the outer side of the end of the first connecting pipe 1. A first threaded connection mechanism is provided between the end of the first connecting pipe 1 and the end of the second connecting pipe 2. A second threaded connection mechanism is provided between the inner side of the end of the sealing sleeve 3 and the outer side of the second connecting pipe 2.

[0032] like Figures 1 to 6 As shown, the end of the sealing sleeve 3 is bent inward, and the inner diameter of the inwardly bent part of the sealing sleeve 3 is adapted to the outer diameter of the second connecting pipe 2.

[0033] The sealing sleeve 3 has several partition grooves 4 on its inwardly bent portion. The partition grooves 4 are distributed in a ring at equal intervals at the end of the sealing sleeve 3. The inner material of the end of the sealing sleeve 3 is alloy spring steel. By opening partition grooves 4 on the inner side of the end of the sealing sleeve 3, the end of the sealing sleeve 3 can be separated. The port of the sealing sleeve 3 made of alloy spring steel can be slightly opened, allowing the second connecting pipe 2 to enter the interior of the sealing sleeve 3 to complete the initial connection. The port of the sealing sleeve 3 made of alloy spring steel automatically returns to its original position to clamp the end of the second connecting pipe 2, thereby completing the initial rapid assembly of the two connecting pipes.

[0034] Furthermore, the width of the dividing groove 4 is less than one millimeter, which separates the port portion of the sealing sleeve 3 without creating gaps, thereby ensuring good sealing performance at the end of the sealing sleeve 3.

[0035] like Figures 2 to 10 As shown, the second threaded connection mechanism includes an extension ring 5 fixedly connected to the outside of the second connecting pipe 2, a second internal thread 6 opened inside the extension ring 5, and a second external thread 7 opened outside the port of the sealing sleeve 3.

[0036] like Figures 2 to 10As shown, the extension ring 5 extends away from the end of the second connecting pipe 2. The inner diameter of the extension ring 5 is adapted to the outer diameter of the sealing sleeve 3. The second internal thread 6 is adapted to the second external thread 7. By setting the second internal thread 6 and the second external thread 7 on the second connecting pipe 2 and the sealing sleeve 3 respectively, when the second connecting pipe 2 is inserted into the sealing sleeve 3 and connected to the first connecting pipe 1, rotating the second connecting pipe 2 can make the second internal thread 6 on the inner side of the extension ring 5 and the second external thread 7 on the sealing sleeve 3 complete the threaded connection, and the sealing sleeve 3 and the second connecting pipe 2 are completely fixedly connected. The sealing sleeve 3 further seals the joint between the first connecting pipe 1 and the second connecting pipe 2, improves the sealing performance of the pipe connection structure, and plays a protective role in reducing the influence of external factors on the connection part. Example 2

[0037] like Figures 2 to 8 As shown, the first threaded connection mechanism includes a telescopic tube 8 that is slidably connected to the outside of the end of the first connecting tube 1, a first internal thread 9 that is opened on the inside of the end of the second connecting tube 2, and a first external thread 10 that is opened on the outside of the end of the telescopic tube 8.

[0038] The first internal thread 9 is adapted to the first external thread 10. By adding a telescopic tube 8 between the first connecting pipe 1 and the second connecting pipe 2, the connection part of the two can be telescopic. When the second connecting pipe 2 is pushed into the sealing sleeve 3, the telescopic tube 8 slides and retracts towards the first connecting pipe 1 to avoid interference with the end of the second connecting pipe 2, which would prevent it from entering the sealing sleeve 3. After the second connecting pipe 2 enters the sealing sleeve 3, the second connecting pipe 2 is rotated so that the first internal thread 9 and the first external thread, as well as the second internal thread 6 and the second external thread 7, cooperate with each other to complete the threaded connection, thereby completing the docking of the first connecting pipe 1 and the second connecting pipe 2. At the same time, the extension ring 5 on the outside of the second connecting pipe 2 and the sealing sleeve 3 are threadedly connected to complete the seal, quickly achieving double sealing docking. It has excellent sealing performance and is simple to operate and has high installation efficiency.

[0039] Furthermore, the threads of the first threaded connection mechanism and the second threaded connection mechanism are opposite in direction, so that the rotation of the second connecting pipe 2 can simultaneously achieve threaded connections in two different feed directions, thus achieving efficient sealing assembly. Example 3

[0040] like Figures 2 to 8As shown, the inner side of the telescopic tube 8 is provided with several sliding grooves 11, and the outer side of the end of the first connecting tube 1 is fixedly connected with a limiting block 12. The shapes of the sliding grooves 11 and the limiting block 12 are adapted to each other. By setting the sliding grooves 11 and the limiting block 12 on the telescopic tube 8 and the first connecting tube 1 respectively, the telescopic tube 8 can slide axially relative to the first connecting tube 1 to achieve assembly connection with the first connecting tube 1. At the same time, the limiting block 12 and the sliding groove 11 cooperate to restrict the rotation of the telescopic tube 8, so as to prevent the telescopic tube 8 from rotating during the sliding process and affecting the threaded assembly between the connecting tubes. At the same time, when the telescopic tube 8 slides to the end of the first connecting tube 1, the end of the sliding groove 11 contacts the limiting block 12 to limit it, so as to prevent the telescopic tube 8 from detaching from the first connecting tube 1.

[0041] like Figure 3 and Figure 8 As shown, a compression spring 13 is fixedly connected to the outside of the first connecting pipe 1. The end of the compression spring 13 is fixedly connected to the end of the telescopic pipe 8. By setting the compression spring 13 at the end of the first connecting pipe 1, it generates elastic force on the telescopic pipe 8. When the second connecting pipe 2 and the telescopic pipe 8 are connected by threads, the compression spring 13 makes the telescopic pipe 8 press against the second connecting pipe 2, making the threaded connection between the two smoother and avoiding the situation where the telescopic pipe 8 shrinks inward and affects the threaded connection.

[0042] The working principle of this utility model is as follows:

[0043] S1. When the second connecting pipe 2 is pushed into the sealing sleeve 3, the telescopic pipe 8 slides and retracts towards the first connecting pipe 1.

[0044] S2. Rotate the second connecting pipe 2 so that the first internal thread 9 and the first external thread, as well as the second internal thread 6 and the second external thread 7, cooperate with each other to complete the threaded connection.

[0045] S3. The first connecting pipe 1 and the second connecting pipe 2 are connected together, and the extension ring 5 on the outside of the second connecting pipe 2 and the sealing sleeve 3 are connected by threads to complete the seal, which quickly achieves double sealing connection. It has excellent sealing performance, and is simple to operate and has high installation efficiency.

[0046] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A connection structure for a building water supply and sewerage pipe, comprising a first connection pipe (1) and a second connection pipe (2), characterized in that: The end of the first connecting pipe (1) is fixedly connected with a sealing sleeve (3), a first threaded connection mechanism is arranged between the end of the first connecting pipe (1) and the end of the second connecting pipe (2), and a second threaded connection mechanism is arranged between the end of the sealing sleeve (3) and the outer side of the second connecting pipe (2).

2. The connecting structure for a building water supply and sewer pipe according to claim 1, wherein: The end of the sealing sleeve (3) is inwardly bent, and the inner diameter of the inwardly bent part of the sealing sleeve (3) is matched with the outer diameter of the second connecting pipe (2). A plurality of separation grooves (4) are arranged on the inwardly bent part of the sealing sleeve (3), the separation grooves (4) are annularly and equidistantly distributed on the end of the sealing sleeve (3), and the material of the inner side of the end of the sealing sleeve (3) is alloy spring steel.

3. The connecting structure for a building water supply and sewer pipe according to claim 1, wherein: The second threaded connection mechanism comprises an extension ring (5) fixedly connected to the outer side of the second connecting pipe (2), a second inner thread (6) arranged on the inner side of the extension ring (5), and a second outer thread (7) arranged on the outer side of the end of the sealing sleeve (3).

4. The connecting structure for a building water supply and sewer pipe according to claim 3, wherein: The extension ring (5) extends away from the end of the second connecting pipe (2), the inner diameter of the extension ring (5) is matched with the outer diameter of the end of the sealing sleeve (3), and the second inner thread (6) is matched with the second outer thread (7).

5. The connecting structure for a building water supply and sewer pipe according to claim 1, wherein: The first threaded connection mechanism comprises a telescopic pipe (8) slidably connected to the outer side of the end of the first connecting pipe (1), a first inner thread (9) arranged on the inner side of the end of the second connecting pipe (2), and a first outer thread (10) arranged on the outer side of the end of the telescopic pipe (8).

6. The connecting structure for a building water supply and sewer pipe according to claim 5, wherein: The first inner thread (9) is matched with the first outer thread (10).

7. The connecting structure for a building water supply and sewer pipe according to claim 5, wherein: A plurality of sliding grooves (11) are arranged on the inner side of the telescopic pipe (8), a limiting block (12) is fixedly connected to the outer side of the end of the first connecting pipe (1), and the shapes of the sliding grooves (11) and the limiting block (12) are matched.

8. The connecting structure for a building water supply and sewer pipe according to claim 5, wherein: A compression spring (13) is fixedly connected to the outer side of the first connecting pipe (1), and the end of the compression spring (13) is fixedly connected to the end of the telescopic pipe (8).

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