PE water supply and drainage pipe convenient to connect

Abstract

The utility model discloses a PE water supply and drainage pipe convenient to connect, which comprises a water supply and drainage pipe main body and further comprises a movable sleeve movably connected to the end part of the water supply and drainage pipe main body, a limiting ring groove is formed in the outer wall of the end part of the water supply and drainage pipe main body, and a limiting block is fixed on the inner wall of the movable sleeve. The limiting block axially moves within the range of the limiting ring groove; a connector part for mounting is arranged at one end, far away from the water supply and drainage pipe main body, of the movable sleeve; a movable sealing structure is arranged between the movable sleeve and the outer wall of the water supply and drainage pipe main body; the water supply and drainage pipe is simple in structure, due to the arrangement of the movable sleeve and the sealing structure, connection of the water supply and drainage pipe can be facilitated, the fault-tolerant rate is increased, and the length size of the water supply and drainage pipe does not need to be accurately trimmed.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pipes, and in particular relates to a PE water supply and drainage pipe which is easy to connect. Background Art

[0002] A water supply and drainage pipe is a kind of through pipe used for drainage and water supply. Generally speaking, the existing water supply and drainage pipes and water pipe joints can splice the pipes by means of adhesives, threads or flanges, but the existing water supply and drainage pipes and water pipe joints have the following shortcomings: 1. The pipes are not convenient to install and maintain, and the pipes cannot be quickly and conveniently connected, and the water supply and drainage pipes need to be precisely trimmed in length; 2. Affected by thermal expansion and contraction, the pipes connected by water pipe joints are prone to deformation, which affects their service life. Therefore, it is very important to obtain a PE water supply and drainage pipe that is easy to connect and overcomes the above defects. Utility Model Content

[0003] In order to solve at least one of the above technical problems, the utility model provides a PE water supply and drainage pipe that is easy to connect, including a water supply and drainage pipe body, and also includes a movable sleeve movably connected to the end of the water supply and drainage pipe body, a limiting ring groove is provided on the outer wall of the end of the water supply and drainage pipe body, a limiting block is fixed on the inner wall of the movable sleeve, and the limiting block is located in the range of the limiting ring groove and moves axially;

[0004] The movable sleeve is provided with a joint portion for installation at one end away from the water supply and drainage pipe body;

[0005] A movable sealing structure is provided between the movable sleeve and the outer wall of the water supply and drainage pipe body;

[0006] The movable sealing structure includes a plurality of first wedge-shaped grooves on the inner wall of the movable sleeve, a sealing groove on the outer wall of the water supply and drainage pipe body, and a plurality of second wedge-shaped grooves on the inner wall of the sealing groove. A hollow sealing ring is arranged in the sealing groove, and a plurality of third wedge-shaped grooves are arranged on the outer wall of the hollow sealing ring. The first wedge-shaped groove is meshed with the third wedge-shaped groove, and the second wedge-shaped groove is meshed with the third wedge-shaped groove. The inner wall of the movable sleeve and the inner wall of the sealing groove squeeze the hollow sealing ring to deform it.

[0007] Through the above technical solution, the movable sealing structure can ensure the sealing between the movable sleeve and the water supply and drainage pipe body when the two move axially relative to each other, thereby preventing water leakage.

[0008] There may be two movable sealing structures, which are respectively arranged on the upper and lower sides of the limit block to further enhance the sealing performance.

[0009] As a preferred embodiment of the above, the joint portion includes an internal thread or an external thread provided at the end of the movable sleeve.

[0010] Preferably, since the movable sleeve is connected to, for example, a water pipe joint through a joint portion, it needs to rotate circumferentially, so the surfaces where the first wedge groove, the second wedge groove and the third wedge groove are located are perpendicular to the axis of the water supply and drainage pipe body to allow relative rotation between the movable sleeve and the water supply and drainage pipe body.

[0011] As a preferred embodiment of the above, the main body of the water supply and drainage pipe is made of PE material, and a metal grid is embedded in the middle to increase the strength of the water supply and drainage pipe.

[0012] As a preferred embodiment, the outer wall of the water supply and drainage pipe body is fixed with a transverse connector and / or a longitudinal connector so as to be installed to the installation position by fasteners. The water supply and drainage pipe body is at least partially provided with a threaded pipe section so as to bend the water supply and drainage pipe body.

[0013] The main body of the water supply and drainage pipe is made of PE material.

[0014] Compared with the prior art, the advantages of the utility model are: the utility model has a simple structure, and due to the arrangement of the movable sleeve and the sealing structure, the connection of the water supply and drainage pipe of the utility model can be facilitated; when put into use, the water supply and drainage pipe body can be preliminarily fixed by means of a transverse connector or a longitudinal connector, and the bending angle of the threaded pipe section can be controlled and limited by the installation position of the transverse connector and / or the longitudinal connector, and then, it is connected to the water pipe joint through the joint part of the movable sleeve, which increases the fault tolerance and eliminates the need to accurately trim the length of the water supply and drainage pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 2 This utility model Figure 1 A magnified image of point A;

[0017] Figure 3 This is a three-dimensional cross-sectional view of the hollow sealing ring of the utility model;

[0018] Reference numerals:

[0019] 1 water supply and drainage pipe body; 2 movable sleeve; 3 limiting ring groove; 4 limiting block; 5 joint part; 6 first wedge-shaped groove; 7 sealing groove; 8 second wedge-shaped groove; 9 hollow sealing ring; 10 third wedge-shaped groove; 11 metal grid; 12 transverse connector and / or longitudinal connector; 13 threaded pipe section. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention, and the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of implementation of the present invention.

[0021] Referring to the accompanying drawings, the utility model adopts the following technical scheme: a PE water supply and drainage pipe that is easy to connect, comprising a water supply and drainage pipe body 1, and also comprising a movable sleeve 2 movably connected to the end of the water supply and drainage pipe body 1, a limiting ring groove 3 is provided on the outer wall of the end of the water supply and drainage pipe body 1, and a limiting block 4 is fixed on the inner wall of the movable sleeve 2, and the limiting block 4 is located within the range of the limiting ring groove 3 and moves axially;

[0022] The movable sleeve 2 is provided with a joint portion 5 for installation at one end away from the water supply and drainage pipe body 1;

[0023] A movable sealing structure is provided between the movable sleeve 2 and the outer wall of the water supply and drainage pipe body 1;

[0024] The movable sealing structure includes a plurality of first wedge-shaped grooves 6 formed on the inner wall of the movable sleeve 2, a sealing groove 7 formed on the outer wall of the water supply and drainage pipe body 1, a plurality of second wedge-shaped grooves 8 formed on the inner wall of the sealing groove 7, a hollow sealing ring 9 formed in the sealing groove 7, a plurality of third wedge-shaped grooves 10 formed on the outer wall of the hollow sealing ring 9, the first wedge-shaped grooves 6 mesh with the third wedge-shaped grooves 10, the second wedge-shaped grooves 8 mesh with the third wedge-shaped grooves 10, and the inner wall of the movable sleeve 2 and the inner wall of the sealing groove 7 squeeze the hollow sealing ring to deform it.

[0025] Through the above technical solution, the movable sealing structure can ensure the sealing between the movable sleeve 2 and the water supply and drainage pipe body 1 when the two move axially relative to each other, thereby preventing water leakage.

[0026] There may be two movable sealing structures, which are respectively arranged on the upper and lower sides of the limit block 4 to further enhance the sealing performance.

[0027] As a preferred embodiment of the above, the joint portion 5 includes an internal thread or an external thread provided at the end of the movable sleeve 2 .

[0028] Preferably, since the movable sleeve 2 is connected to, for example, a water pipe joint through the joint portion 5, it needs to rotate circumferentially, so the surfaces where the first wedge groove 6, the second wedge groove 8 and the third wedge groove 10 are located are perpendicular to the axis of the water supply and drainage pipe body 1 so that relative rotation occurs between the movable sleeve 2 and the water supply and drainage pipe body 1.

[0029] As a preferred embodiment, the water supply and drainage pipe body 1 is made of PE material, and a metal grid 11 is embedded in the middle to increase the strength of the water supply and drainage pipe, that is, the metal grid forms an internal skeleton.

[0030] As a preferred embodiment, a transverse connector and / or a longitudinal connector 12 is fixed on the outer wall of the water supply and drainage pipe body 1 so as to be installed to the installation position by fasteners. The water supply and drainage pipe body 1 is at least partially provided with a threaded pipe section 13 so as to bend the water supply and drainage pipe body 1.

[0031] The material of the water supply and drainage pipe body 1 is PE material.

[0032] Compared with the prior art, the advantages of the utility model are: the utility model has a simple structure, and due to the arrangement of the movable sleeve 2 and the sealing structure, the connection of the water supply and drainage pipe of the utility model can be facilitated; when put into use, the water supply and drainage pipe body 1 can be preliminarily fixed by a transverse connector or a longitudinal connector, and the bending angle of the threaded pipe section 13 can be controlled and limited by the installation position of the transverse connector and / or the longitudinal connector 12, and then, the joint part 5 of the movable sleeve 2 is connected to the water pipe joint, which increases the fault tolerance and does not require precise trimming of the length of the water supply and drainage pipe.

[0033] The above-mentioned transverse connector and / or longitudinal connector 12 can be an existing L-shaped connector or a sheet-shaped connector.

[0034] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0035] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A PE water supply and drainage pipe that is easy to connect, characterized by: It comprises a water supply and drainage pipe body (1), and also comprises a movable sleeve (2) movably connected to the end of the water supply and drainage pipe body (1), a limiting ring groove (3) is provided on the outer wall of the end of the water supply and drainage pipe body (1), a limiting block (4) is fixed on the inner wall of the movable sleeve (2), and the limiting block (4) is located within the range of the limiting ring groove (3) and moves axially; The end of the movable sleeve (2) away from the water supply and drainage pipe body (1) is provided with a joint portion (5) for installation; A movable sealing structure is provided between the movable sleeve (2) and the outer wall of the water supply and drainage pipe body (1); The movable sealing structure comprises a plurality of first wedge-shaped grooves (6) provided on the inner wall of the movable sleeve (2), a sealing groove (7) provided on the outer wall of the water supply and drainage pipe body (1), a plurality of second wedge-shaped grooves (8) provided on the inner wall of the sealing groove (7), a hollow sealing ring (9) provided in the sealing groove (7), a plurality of third wedge-shaped grooves (10) provided on the outer wall of the hollow sealing ring (9), the first wedge-shaped groove (6) meshing with the third wedge-shaped groove (10), the second wedge-shaped groove (8) meshing with the third wedge-shaped groove (10), and the inner wall of the movable sleeve (2) and the inner wall of the sealing groove (7) squeeze the hollow sealing ring (9) to deform it.

2. The PE water supply and drainage pipe that is easy to connect according to claim 1 is characterized in that: The joint portion (5) comprises an internal thread or an external thread provided at the end of the movable sleeve (2).

3. The PE water supply and drainage pipe with easy joint according to claim 2 is characterized in that: The surfaces where the first wedge-shaped groove (6), the second wedge-shaped groove (8) and the third wedge-shaped groove (10) are located are perpendicular to the axis of the water supply and drainage pipe body (1) so that relative rotation occurs between the movable sleeve (2) and the water supply and drainage pipe body (1).

4. The PE water supply and drainage pipe with easy joint according to claim 1 is characterized in that: The water supply and drainage pipe body (1) is made of PE material, and a metal grid frame (11) is embedded in the middle.

5. The PE water supply and drainage pipe with easy joint according to claim 1, characterized in that: A transverse connecting piece and / or a longitudinal connecting piece (12) is fixed on the outer wall of the water supply and drainage pipe body (1) so as to be installed at the installation position by means of fasteners.

6. The PE water supply and drainage pipe with easy joint according to claim 1, characterized in that: The water supply and drainage pipe body (1) is at least partially provided with a threaded pipe section (13) to facilitate bending of the water supply and drainage pipe body (1).

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