A socketed PE water pipe

Abstract

The utility model belongs to the technical field of PE water supply pipe, especially a socket type PE water supply pipe. Including PE pipe body and inner sleeve, the inner sleeve is inserted in the head of PE pipe body, and the inner sleeve is mutually butted together through the inner sleeve between every two PE pipe bodies, the first sealing gasket is arranged between the inner sleeve and the head end face of PE pipe body, and the sealing ring is arranged between the inner sleeve and the pipe wall of PE pipe body. The utility model discloses through the location function of fixed ring makes the installation positioning precision of socket cap, cooperates the inner sleeve and socket cap of screw thread connection, forms mechanical locking structure, need not hot melt welding equipment, and socket cap can be completed connection by hand, the first sealing gasket between the inner sleeve and the end face of PE pipe body, the second sealing gasket between socket cap forms axial seal, and the sealing ring of inner sleeve outer wall realizes radial seal, double protection prevents leakage, and simultaneously, the inner sleeve and socket cap adopt detachable design, facilitate the subsequent dismounting and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of PE water supply pipe technology, specifically a socket-type PE water supply pipe. Background Technology

[0002] PE water supply pipes are made of PE (polyethylene) material. Due to their high strength, corrosion resistance, and non-toxicity, they are widely used in the water supply pipe manufacturing industry. Because PE water supply pipes do not rust, they are an ideal replacement for ordinary iron water supply pipes and are widely used in building water supply, building drainage, buried drainage pipes, building heating, gas transmission pipes, electrical and telecommunications protective sleeves, industrial pipes, agricultural pipes, etc.

[0003] The existing connection structure of socket-type PE water supply pipes involves welding the two pipe ends together using a welding cylinder, then fitting a fixing sleeve over the outside. Because the weld joint is easily damaged, the two pipes do not seal well and are prone to leakage.

[0004] Therefore, we proposed a socket-type PE water supply pipe to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a socket-type PE water supply pipe, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A socket-type PE water supply pipe includes a PE pipe body and an inner sleeve. The inner sleeve is inserted into the head of the PE pipe body, and the PE pipe bodies are connected to each other through the inner sleeve. A first sealing gasket is provided between the head end face of the inner sleeve and the PE pipe body, and a sealing ring is provided between the inner sleeve and the pipe wall of the PE pipe body. Fixing rings are snapped into the left and right ends of the PE pipe body, and a first receiving cap and a second receiving cap are respectively fitted onto the left and right ends of the PE pipe body. The first receiving cap is threaded to the inner sleeve, and the second receiving cap is threaded to the first receiving cap, with a second sealing gasket provided between them.

[0010] Furthermore, the two ends of the PE pipe are provided with a first arc-shaped groove, and the sealing ring is located in the first arc-shaped groove.

[0011] Furthermore, the inner walls at both ends of the inner sleeve are provided with second arc-shaped grooves, and the outer ring wall of the sealing ring is located in the second arc-shaped grooves.

[0012] Furthermore, the left and right ends of the PE pipe are provided with annular grooves, and the fixing ring is located in the annular grooves.

[0013] Furthermore, the fixing rings are located in the first receiving cap and the second receiving cap respectively, and are used to limit the position of the first receiving cap and the second receiving cap.

[0014] Furthermore, the outer wall of the inner sleeve is provided with a first external thread, and the inner wall of the first receiving cap is provided with a first internal thread, and is threadedly connected to the inner sleeve through the first internal thread and the first external thread.

[0015] Furthermore, the outer wall of the first receiving cap is provided with a second external thread, and the inner wall of the second receiving cap is provided with a second internal thread, and the second receiving cap is threadedly connected to the first receiving cap through the second internal thread and the second external thread.

[0016] Furthermore, the second sealing gasket is disposed in the second receiving cap, and the second sealing gasket is located between the end faces of the second receiving cap and the first receiving cap.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a socket-type PE water supply pipe, which has the following advantages:

[0019] This invention uses the limiting function of the fixing ring to ensure precise positioning of the receiving cap during installation. Together with the threaded inner sleeve and the receiving cap, a mechanical locking structure is formed. No heat fusion welding equipment is required; the connection can be completed by hand-tightening the receiving cap. The first sealing gasket between the end face of the PE pipe and the inner sleeve, and the second sealing gasket between them, form an axial seal, while the sealing ring on the outer wall of the inner sleeve provides a radial seal. This double protection prevents leakage. At the same time, the inner sleeve and the receiving cap are designed to be detachable, facilitating subsequent disassembly, assembly, and maintenance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is an assembly diagram of the present invention;

[0023] Figure 4 This is a partial exploded view of the present invention.

[0024] In the diagram: 1. PE pipe body; 2. Inner sleeve; 3. First sealing gasket; 4. Sealing ring; 5. Fixing ring; 6. First receiving cap; 7. Second receiving cap; 8. Second sealing gasket; 9. First arc-shaped groove; 10. Second arc-shaped groove; 11. Annular groove; 12. First external thread; 13. First internal thread; 14. Second external thread; 15. Second internal thread. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example

[0027] like Figures 1-4 As shown in the figure, an embodiment of the present invention discloses a socket-type PE water supply pipe, comprising a PE pipe body 1 and an inner sleeve 2. The inner sleeve 2 is inserted into the head of the PE pipe body 1, and the PE pipe bodies 1 are connected to each other through the inner sleeve 2. A first sealing gasket 3 is provided between the inner sleeve 2 and the head end face of the PE pipe body 1, and a sealing ring 4 is provided between the inner sleeve 2 and the pipe wall of the PE pipe body 1. Fixing rings 5 ​​are snapped into the left and right ends of the PE pipe body 1, and a first receiving cap 6 and a second receiving cap 7 are respectively fitted onto the left and right ends of the PE pipe body 1. The first receiving cap 6 is threadedly connected to the inner sleeve 2. The second receiving cap 7 is threadedly connected to the first receiving cap 6, and a second sealing gasket 8 is provided between them. The limiting function of the fixing ring 5 ensures that the receiving cap is accurately positioned during installation. Together with the threaded inner sleeve 2 and the receiving cap, a mechanical locking structure is formed. No heat fusion welding equipment is required; the connection can be completed by hand-tightening the receiving cap. The first sealing gasket 3 between the end face of the PE pipe body 1 and the inner sleeve 2, and the second sealing gasket 8 between the receiving caps form an axial seal, while the sealing ring 4 on the outer wall of the inner sleeve 2 provides a radial seal. This double protection prevents leakage. At the same time, the inner sleeve 2 and the receiving cap adopt a detachable design, which facilitates subsequent disassembly, assembly, and maintenance.

[0028] like Figure 3 As shown, in some embodiments, the two ends of the PE pipe body 1 are provided with a first arc-shaped groove 9, and the sealing ring 4 is located in the first arc-shaped groove 9. The first arc-shaped groove 9 is an assembly structure used for the installation and positioning of the sealing ring 4.

[0029] like Figure 4As shown, in some embodiments, the inner walls at both ends of the inner sleeve 2 are provided with second arc-shaped grooves 10, and the outer ring wall of the sealing ring 4 is located in the second arc-shaped grooves 10. The second arc-shaped grooves 10 are assembly structures used for the installation of the sealing ring 4. The sealing ring 4 is an axially acting elastic rubber ring, whose core function is to prevent fluid leakage and the intrusion of external contaminants, and to maintain the integrity of the system through an elastic sealing mechanism.

[0030] like Figure 3 As shown, in some embodiments, the left and right ends of the PE pipe body 1 are provided with annular grooves 11, and the fixing ring 5 is located in the annular grooves 11. The annular grooves 11 are assembly structures used for the installation and positioning of the fixing ring 5.

[0031] like Figure 3 As shown, in some embodiments, the fixing ring 5 is located in the first receiving cap 6 and the second receiving cap 7 respectively, and is used to limit the first receiving cap 6 and the second receiving cap 7. The fixing ring 5 is mainly used for axial fixation in mechanical assembly, and here it restricts the axial movement of the first receiving cap 6 and the second receiving cap 7.

[0032] like Figure 4 As shown, in some embodiments, the outer wall of the inner sleeve 2 is provided with a first external thread 12, and the inner wall of the first receiving cap 6 is provided with a first internal thread 13. The first internal thread 13 and the first external thread 12 are threadedly connected to the inner sleeve 2. The first receiving cap 6 is connected and fixed to the inner sleeve 2 through the cooperation between the first internal thread 13 and the first external thread 12.

[0033] like Figure 4 As shown, in some embodiments, the outer wall of the first receiving cap 6 is provided with a second external thread 14, and the inner wall of the second receiving cap 7 is provided with a second internal thread 15. The first receiving cap 6 is threadedly connected to the second receiving cap 6 through the second internal thread 15 and the second external thread 14. The first receiving cap 6 and the second receiving cap 7 are connected and fixed through the cooperation between the second internal thread 15 and the second external thread 14.

[0034] like Figure 4 As shown, in some embodiments, the second sealing gasket 8 is disposed in the second receiving cap 7, and the second sealing gasket 8 is located between the end faces of the second receiving cap 7 and the first receiving cap 6. The second sealing gasket 8 can fill the gap between the two contact surfaces, thereby achieving connection and preventing media leakage.

[0035] During use, the retaining ring 5 ensures precise positioning of the receiving cap during installation. Together with the threaded inner sleeve 2 and the receiving cap, a mechanical locking structure is formed. No hot-melt welding equipment is required; the connection can be completed by hand-tightening the receiving cap. The first sealing gasket 3 between the end face of the PE pipe body 1 and the inner sleeve 2, and the second sealing gasket 8 between them form an axial seal, while the sealing ring 4 on the outer wall of the inner sleeve 2 provides a radial seal. This double protection prevents leakage. At the same time, the inner sleeve 2 and the receiving cap are designed to be detachable, facilitating subsequent disassembly, assembly, and maintenance.

[0036] In summary, the limiting function of the retaining ring 5 ensures precise positioning of the receiving cap during installation. Together with the threaded inner sleeve 2 and the receiving cap, a mechanical locking structure is formed. No heat fusion welding equipment is required; the connection can be completed by hand-tightening the receiving cap. The first sealing gasket 3 between the end face of the PE pipe body 1 and the inner sleeve 2, and the second sealing gasket 8 between them form an axial seal, while the sealing ring 4 on the outer wall of the inner sleeve 2 provides a radial seal. This double protection prevents leakage. At the same time, the inner sleeve 2 and the receiving cap are designed to be detachable, facilitating subsequent disassembly, assembly, and maintenance.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A socket-type PE water supply pipe, comprising a PE pipe body (1) and an inner sleeve (2), characterized in that: The inner sleeve (2) is inserted into the head of the PE pipe body (1), and the PE pipe bodies (1) are connected to each other through the inner sleeve (2). A first sealing gasket (3) is provided between the inner sleeve (2) and the head end face of the PE pipe body (1), and a sealing ring (4) is provided between the inner sleeve (2) and the pipe wall of the PE pipe body (1). A fixing ring (5) is snapped into the left and right ends of the PE pipe body (1), and a first receiving cap (6) and a second receiving cap (7) are respectively fitted on the left and right ends of the PE pipe body (1). The first receiving cap (6) is threaded to the inner sleeve (2), and the second receiving cap (7) is threaded to the first receiving cap (6), and a second sealing gasket (8) is provided between the two.

2. The socket-type PE water supply pipe according to claim 1, characterized in that: The two ends of the PE pipe body (1) are provided with a first arc-shaped groove (9), and the sealing ring (4) is located in the first arc-shaped groove (9).

3. A socket-type PE water supply pipe according to claim 1, characterized in that: The inner sleeve (2) has a second arc-shaped groove (10) on the inner wall at both ends, and the outer ring wall of the sealing ring (4) is located in the second arc-shaped groove (10).

4. A socket-type PE water supply pipe according to claim 1, characterized in that: The PE pipe body (1) has annular grooves (11) at both ends, and the fixing ring (5) is located in the annular grooves (11).

5. A socket-type PE water supply pipe according to claim 1, characterized in that: The fixing ring (5) is located in the first receiving cap (6) and the second receiving cap (7) respectively, and is used to limit the first receiving cap (6) and the second receiving cap (7).

6. A socket-type PE water supply pipe according to claim 1, characterized in that: The outer wall of the inner sleeve (2) is provided with a first external thread (12), and the inner wall of the first receiving cap (6) is provided with a first internal thread (13), and is threadedly connected to the inner sleeve (2) through the first internal thread (13) and the first external thread (12).

7. A socket-type PE water supply pipe according to claim 1, characterized in that: The outer wall of the first receiving cap (6) is provided with a second external thread (14), and the inner wall of the second receiving cap (7) is provided with a second internal thread (15), and is threadedly connected to the first receiving cap (6) through the second internal thread (15) and the second external thread (14).

8. A socket-type PE water supply pipe according to claim 1, characterized in that: The second sealing gasket (8) is disposed in the second receiving cap (7), and the second sealing gasket (8) is located between the end faces of the second receiving cap (7) and the first receiving cap (6).

Images