A stable PVC drainage pipe that is easy to connect and assemble

Abstract

This invention proposes a stable PVC drainage pipe that is easy to assemble, including a sealing pipe, an annular seat coaxially connected inside the sealing pipe, and an inner pipe coaxially connected to the inner wall of the annular seat. The gap between the inner pipe and the sealing pipe is used for installing fittings. The fittings and the sealing pipe are threaded together, and multiple annular plates are coaxially connected to the outer wall of the inner pipe, abutting against the inner wall of the fittings. This invention uses a threaded connection to install the fittings and the sealing pipe, allowing the fitting end to abut against the sealing ring, effectively improving the sealing performance of the fitting connection. At this time, the inner pipe is coaxially located inside the fitting, allowing the annular plates to form a sealing connection with the inner wall of the fitting, effectively improving the sealing performance when the fittings are joined. This invention not only has a simple structure and facilitates the user's assembly of the fittings, but also improves the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe technology, specifically a stable PVC drainage pipe that is easy to connect and assemble. Background Technology

[0002] PVC drainage pipes refer to a system consisting of pipes and their ancillary facilities that collect and discharge sewage, wastewater and rainwater. PVC drainage pipes are commonly found in urban underground pipe networks. Domestic sewage, industrial wastewater and rainwater all need to be collected through corresponding drainage pipes and centrally discharged to corresponding sewage treatment plants or natural water bodies for treatment.

[0003] Most existing PVC pipes are inconvenient to install and splice, and leaks are common after splicing, causing great inconvenience to users. Therefore, we propose a stable PVC drainage pipe that is easy to assemble and splice. Utility Model Content

[0004] To address the shortcomings of existing PVC pipes, which are inconvenient to install and prone to leakage after splicing, causing significant inconvenience, this invention provides a stable PVC drainage pipe that is easy to assemble and connect. It achieves sealing at the pipe ends and improves sealing during pipe splicing. Furthermore, it features a simple structure and effectively enhances the practicality of the device, thus solving the problems mentioned in the background section.

[0005] The technical solution of this utility model is implemented as follows: a stable PVC drainage pipe that is easy to assemble includes a sealing pipe, an annular seat is coaxially connected inside the sealing pipe, and an inner pipe is coaxially connected on the inner wall of the annular seat; the gap between the inner pipe and the sealing pipe is used to install pipe fittings, the pipe fittings and the sealing pipe are threadedly connected, and multiple annular plates are coaxially connected on the outer wall of the inner pipe, the annular plates abutting against the inner wall of the pipe fittings.

[0006] Optionally, an internal thread is provided on the inner wall of the sealing tube, and an external thread is provided on the outer wall of the fitting, with the external thread and the internal thread engaging for connection.

[0007] Optionally, a sealing ring coaxial with the annular seat is connected to the end of the fitting, and the end of the fitting abuts against the sealing ring.

[0008] Optionally, a second annular groove coaxial with the annular seat can be formed at the end of the annular seat to seal the connection between the sealing ring and the second annular groove.

[0009] Optionally, a first annular groove coaxial with the sealing ring is formed on the outer wall of the sealing ring, and the end of the pipe fitting abuts against the first annular groove.

[0010] Optionally, the annular plate is inclinedly connected to the inner wall of the fitting to form a tapered tube, and the open end of the tapered tube is oriented away from the annular seat.

[0011] Optionally, the annular plate is an annular rubber plate.

[0012] Optionally, the annular plate, inner tube, annular seat, and sealing tube are integrated into one structure.

[0013] Compared with the prior art, this utility model achieves a tight seal at the pipe end by threading the pipe fitting into the sealing pipe and abutting the pipe end against the sealing ring during installation. At the same time, the inner tube is coaxially located inside the pipe fitting, allowing the annular plate to form a sealing connection with the inner wall of the pipe fitting, further improving the sealing performance when the pipe fitting is connected. It not only has a simple structure but also makes it convenient for users to assemble the pipe fittings, effectively improving the practicality of the device. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the internal structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the sealing tube of this utility model.

[0018] Figure 4 This is a schematic diagram showing the connection of the sealing tube and fittings of this utility model.

[0019] In the diagram: 1. Sealing pipe; 2. External thread; 3. Pipe fitting; 4. Internal thread; 5. Annular plate; 6. Annular seat; 7. First annular groove; 8. Inner pipe; 9. Second annular groove; 10. Sealing ring. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Reference Figures 1 to 4 This utility model provides a technical solution: a stable PVC drainage pipe that is easy to assemble, including a sealing pipe 1, an annular seat 6 coaxially connected inside the sealing pipe 1, and an inner pipe 8 coaxially connected to the inner wall of the annular seat 6. The gap between the inner pipe 8 and the sealing pipe 1 is used to install a pipe fitting 3. In actual use, the pipe fitting 3 and the sealing pipe 1 are threaded together, such as... Figure 2 As shown, an internal thread 4 is provided on the inner wall of the sealing tube 1, and an external thread 2 is provided on the outer wall of the fitting 3. The external thread 2 and the internal thread 4 are connected in a mating manner.

[0022] like Figure 3 , 4 As shown, to improve the sealing performance of the connection between the sealing tube 1 and the fitting 3, a sealing ring 10 coaxial with it is connected to the end of the annular seat 6. To improve the stability of the connection of the sealing ring 10 on the annular seat 6, a second annular groove 9 coaxial with it is opened at the end of the annular seat 6, and the sealing ring 10 and the second annular groove 9 are sealed together, and the end of the fitting 3 abuts against the sealing ring 10. To further improve the sealing performance of the connection between the fitting 3 and the sealing ring 10, a first annular groove 7 coaxial with it is opened on the outer wall of the sealing ring 10, and the end of the fitting 3 abuts against the first annular groove 7.

[0023] like Figure 3 , 4 As shown, in order to achieve a tight seal between the inside of the fitting 3 and the inner tube 8, multiple annular plates 5 are coaxially connected to the outer wall of the inner tube 8. The annular plates 5 abut against the inner wall of the fitting 3. In actual use, the annular plates 5 are inclinedly connected to the inner wall of the fitting 3 to form a conical tube shape, and the open end of the conical tube shape is set to the side away from the annular seat 6. When liquid passes through the fitting 3, it can generate pressure on the annular plates 5, thereby making the annular plates 5 tightly contact the inner wall of the fitting 3, which can further improve the sealing performance of the annular plates 5 on the fitting 3.

[0024] In summary, this stable PVC drainage pipe, which is easy to assemble, further improves the overall stability and sealing of the device by setting the annular plate 5 as an annular rubber plate. The annular plate 5, inner pipe 8, annular seat 6, and sealing pipe 1 are integrated into one structure. During installation, the pipe fitting 3 is threaded into the sealing pipe 1. At this time, the end of the pipe fitting 3 abuts against the first annular groove 7 on the sealing ring 10, thus achieving a seal at the end of the pipe fitting 3. At the same time, the inner pipe 8 is coaxially located inside the pipe fitting 3, so that the annular plate 5 on the outer wall of the inner pipe 8 and the inner wall of the pipe fitting 3 are sealed together. The setting of multiple annular plates 5 can further improve the sealing of the connection. This utility model not only has a simple structure and facilitates the user's assembly of the pipe fitting 3, but also effectively improves the sealing of the pipe fitting 3 connection, greatly improving the practicality of the device.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stable PVC drain pipe which is assembled easily with the help of a coupling, comprising a sealing pipe (1), characterized in that, An annular seat (6) is coaxially connected inside the sealing tube (1), and an inner tube (8) is coaxially connected to the inner wall of the annular seat (6). The gap between the inner tube (8) and the sealing tube (1) is used to install the fitting (3). The fitting (3) and the sealing tube (1) are threaded together, and multiple annular plates (5) are coaxially connected on the outer wall of the inner tube (8). The annular plates (5) abut against the inner wall of the fitting (3).

2. The stable PVC drain pipe for ease of butt-assembly of claim 1, wherein, An internal thread (4) is opened on the inner wall of the sealing tube (1), and an external thread (2) is opened on the outer wall of the fitting (3). The external thread (2) and the internal thread (4) are connected in a mating manner.

3. The stable PVC drain pipe for ease of butt-assembly of claim 1, wherein, A sealing ring (10) coaxial with the end of the annular seat (6) is connected, and the end of the pipe fitting (3) abuts against the sealing ring (10).

4. The stable PVC drain pipe for ease of butt-assembly of claim 3, wherein, A second annular groove (9) coaxial with the end of the annular seat (6) is opened to seal the sealing ring (10) and the second annular groove (9).

5. The stable PVC drainage pipe for easy assembly as described in claim 4, characterized in that, A first annular groove (7) coaxial with the outer wall of the sealing ring (10) is provided, and the end of the pipe fitting (3) abuts against the first annular groove (7).

6. The stable PVC drain pipe for ease of butt-assembly of claim 1, wherein, The annular plate (5) is inclinedly connected to the inner wall of the pipe (3) to form a tapered tube, and the open end of the tapered tube is set to the side away from the annular seat (6).

7. The stable PVC drain pipe for ease of butt-assembly of claim 6, wherein, The annular plate (5) is an annular rubber plate.

8. The stable PVC drain pipe for ease of butt-assembly of claim 6, wherein, The annular plate (5), inner tube (8), annular seat (6), and sealing tube (1) are an integral structure.

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