A quick coupling for non-buried PE pipes

Abstract

This utility model relates to the field of PE pipe fitting technology and discloses a quick connector for non-buried PE pipes, including a connecting cylinder. A sealing shell is fixedly installed on the outer wall of the connecting cylinder, and a warning light is fixedly installed on the top of the sealing shell. A sealing cover is provided on the outer wall of the sealing shell, and a PE pipe body is slidably connected to the inner wall of the connecting cylinder. By inserting the PE pipe body into the connecting cylinder and the sealing shell, the sealing ring on the outside of the PE pipe body fits against the fixing bushing on the inner wall of the connecting cylinder. At this time, the locking groove reaches the outside of the locking block. By rotating the threaded column, movement occurs on the inner wall of the extension ring. The movement of the threaded column drives the sliding plate to move, causing the sliding plate to move the locking block towards the inner wall of the locking groove. This fixes the position of the locking groove by the locking block, thereby fixing the position of the extension ring and fixing the extension ring and the PE pipe body. This eliminates the need for multiple collars during installation.

Description

Technical Field

[0001] This utility model relates to the field of PE pipe joint technology, specifically a quick connector for non-buried PE pipes. Background Technology

[0002] PE pipes are pipes made of polyethylene (PE) resin through extrusion molding. They are widely used in water supply and drainage, gas transmission, agricultural irrigation and other fields. They are easy to install and can adapt to different environmental requirements, making them one of the commonly used materials in modern pipeline engineering.

[0003] Currently, the connection of PE pipes involves complicated fixing methods, requiring the use of multiple collars, which slows down the fixing process. Furthermore, after prolonged use, leaks may occur, leading to the leakage of internal liquid. However, this fault cannot be detected in time, and it may be discovered only after a large amount of leakage has occurred, resulting in the loss of liquid. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a quick-connect fitting for non-buried PE pipes, which has the advantages of fast fixing speed and leakage alarm, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a quick connector for a non-buried PE pipe, comprising a connecting cylinder, a sealing shell fixedly installed on the outer wall of the connecting cylinder, a warning light fixedly installed on the top of the sealing shell, a sealing cover provided on the outer wall of the sealing shell, a PE pipe body slidably connected to the inner wall of the connecting cylinder, an extension ring fixedly installed on the outer wall of the sealing cover, an extension ring fixedly installed on the outer wall of the PE pipe body, a sealing rubber ring fixedly installed at one end of the PE pipe body located on the inner wall of the connecting cylinder, and a fixing liner fixedly installed on the inner wall of the connecting cylinder. The ring has a sliding plate slidably connected to its inner wall, a locking block fixedly installed on the outer wall of the sliding plate, a threaded column rotatably connected to the side of the sliding plate away from the locking block, a locking groove on the outer wall of the extension ring, a spring on the inner wall of the sealing shell, a hollow groove on the bottom of the sealing shell, a limit groove on the inner wall of the sealing shell, a horizontal plate slidably connected to the inner wall of the sealing shell, a limit block fixedly installed on the outer wall of the horizontal plate, a trigger-type pressure sensor fixedly installed on the inner wall of the sealing shell, and a pressure column fixedly installed on the bottom of the horizontal plate.

[0006] As a preferred technical solution of this utility model: the pressure column is located directly above the trigger-type pressure sensor, and the trigger-type pressure sensor is electrically connected to the warning light.

[0007] As a preferred technical solution of this utility model: the shape of the limiting block is adapted to the shape of the limiting groove, and the limiting block is located on the inner wall of the limiting groove.

[0008] As a preferred technical solution of this utility model: the threaded post passes through the extension ring, and the threaded post and the extension ring are connected by threads.

[0009] As a preferred technical solution of this utility model: the shape of the locking block is adapted to the shape of the locking groove, and the positions of the locking block and the locking groove correspond to each other.

[0010] As a preferred technical solution of this utility model: the shape of the sliding plate is adapted to the shape of the inner wall of the extension ring, and the sliding plate is in close contact with the inner wall of the extension ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This quick-connect coupling for non-buried PE pipes inserts the PE pipe body into the connecting sleeve and sealing shell, causing the sealing ring on the outside of the PE pipe body to fit against the fixing bushing on the inner wall of the connecting sleeve. At this point, the locking groove reaches the outside of the locking block. By rotating the threaded column, movement occurs on the inner wall of the extension ring. This movement of the threaded column causes the sliding plate to move, which in turn moves the locking block towards the inner wall of the locking groove. This fixes the position of the locking groove with the locking block, thereby fixing the position of the extension ring and securing the extension ring to the PE pipe body. This eliminates the need for multiple collars during installation.

[0013] 2. When a leak occurs between the PE pipe body and the connecting sleeve in the quick-connect fitting of this non-buried PE pipe, the liquid enters the interior of the sealing shell and flows down the inner wall of the sealing shell to the top of the horizontal plate. At this time, the weight above the horizontal plate increases, causing the horizontal plate to move downward. This causes the horizontal plate to move the pressure column towards the trigger-type pressure sensor. When the pressure column comes into contact with the trigger-type pressure sensor, the trigger-type pressure sensor is triggered, which in turn sends an electrical signal to the warning light, causing the warning light to flash. The flashing of the warning light alerts nearby personnel that the equipment is leaking. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the internal structure of the sealing shell of this utility model;

[0017] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B.

[0019] In the diagram: 1. Connecting cylinder; 2. Sealing shell; 3. Warning light; 4. PE pipe body; 5. Sealing cap; 6. Extension ring; 7. Extension ring; 8. Sliding plate; 9. Locking block; 10. Threaded column; 11. Spring; 12. Limiting groove; 13. Horizontal plate; 14. Limiting block; 15. Trigger-type pressure sensor; 16. Hollowed-out groove; 17. Pressure column; 18. Sealing ring; 19. Fixing bushing; 20. Locking groove. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 - Figure 5 A quick connector for a non-buried PE pipe includes a connecting sleeve 1, a sealing shell 2 fixedly installed on the outer wall of the connecting sleeve 1, a warning light 3 fixedly installed on the top of the sealing shell 2, a sealing cover 5 on the outer wall of the sealing shell 2, a PE pipe body 4 slidably connected to the inner wall of the connecting sleeve 1, an extension ring 6 fixedly installed on the outer wall of the sealing cover 5, an extension ring 7 fixedly installed on the outer wall of the PE pipe body 4, a sealing rubber ring 18 fixedly installed at one end of the PE pipe body 4 located on the inner wall of the connecting sleeve 1, a fixing bushing 19 fixedly installed on the inner wall of the connecting sleeve 1, and a sliding extension ring 7. A sliding plate 8 is connected, and a locking block 9 is fixedly installed on the outer wall of the sliding plate 8. A threaded column 10 is rotatably connected to the side of the sliding plate 8 away from the locking block 9. A locking groove 20 is opened on the outer wall of the extension ring 6. A spring 11 is provided on the inner wall of the sealing shell 2. A hollow groove 16 is opened at the bottom of the sealing shell 2. A limit groove 12 is opened on the inner wall of the sealing shell 2. A horizontal plate 13 is slidably connected to the inner wall of the sealing shell 2. A limit block 14 is fixedly installed on the outer wall of the horizontal plate 13. A trigger-type pressure sensor 15 is fixedly installed on the inner wall of the sealing shell 2. A pressure column 17 is fixedly installed at the bottom of the horizontal plate 13.

[0022] In the above structure, the horizontal plate 13 is attached to the inner wall of the sealing shell 2, so that the bottom of the inner wall of the sealing shell 2 is sealed by the horizontal plate 13, thereby preventing the liquid from reaching the bottom of the horizontal plate 13 through the horizontal plate 13, so that the liquid can only remain above the horizontal plate 13, thereby increasing the weight above the horizontal plate 13, causing the horizontal plate 13 to move downward, and thus causing the horizontal plate 13 to drive the pressure column 17 to move in the direction of the trigger pressure sensor 15.

[0023] In a preferred embodiment, the pressure column 17 is located directly above the trigger-type pressure sensor 15, and the trigger-type pressure sensor 15 is electrically connected to the warning light 3.

[0024] In the above structure, the downward movement of the horizontal plate 13 drives the pressure column 17 to move downward. When the pressure column 17 moves to the top of the trigger pressure sensor 15 and is in contact with it, the trigger pressure sensor 15 is triggered by the pressure column 17. At this time, the trigger pressure sensor 15 sends an electrical signal to the warning light 3, which in turn causes the warning light 3 to start flashing, so that the warning light 3 can warn nearby staff.

[0025] In a preferred embodiment, the shape of the limiting block 14 is adapted to the shape of the limiting groove 12, and the limiting block 14 is located on the inner wall of the limiting groove 12.

[0026] In the above structure, the limiting block 14 is located on the inner wall of the limiting groove 12, so that the limiting block 14 is limited by the limiting groove 12, thereby preventing the limiting groove 12 from tilting when moving, and thus preventing the horizontal plate 13 from tilting when moving.

[0027] In a preferred embodiment, the threaded post 10 passes through the extension ring 7, and the threaded post 10 and the extension ring 7 are threadedly connected.

[0028] In the above structure, by rotating the threaded column 10, the threaded column 10 moves on the inner wall of the extension ring 7 through the threaded connection with the extension ring 7, and the movement of the threaded column 10 drives the sliding plate 8 to move on the inner wall of the extension ring 7.

[0029] In a preferred embodiment, the shape of the locking block 9 is adapted to the shape of the locking groove 20, and the positions of the locking block 9 and the locking groove 20 correspond.

[0030] In the above structure, by matching the locking block 9 with the locking groove 20, when the locking block 9 enters the interior of the locking groove 20, the position of the locking groove 20 is fixed by the locking block 9, thereby fixing the position of the extension ring 6, and fixing the extension ring 6 and the PE pipe body 4.

[0031] In a preferred embodiment, the shape of the sliding plate 8 is adapted to the shape of the inner wall of the extension ring 7, and the sliding plate 8 is in contact with the inner wall of the extension ring 7.

[0032] In the above structure, the sliding plate 8 is limited by the inner wall of the extension ring 7, so that the sliding plate 8 will not tilt when it moves, and at the same time, the sliding plate 8 will not rotate with the threaded column 10 due to the rotational force of the threaded column 10.

[0033] Working principle: When using the equipment, the PE pipe body 4 is inserted into the connecting cylinder 1 and the sealing shell 2, so that the sealing ring 18 on the outside of the PE pipe body 4 fits against the fixing bushing 19 on the inner wall of the connecting cylinder 1. At this time, the locking groove 20 reaches the outside of the locking block 9. By rotating the threaded column 10, the threaded column 10 moves on the inner wall of the extension ring 7 through the threaded connection with the extension ring 7. The movement of the threaded column 10 drives the sliding plate 8 to move on the inner wall of the extension ring 7, causing the locking block 9 to move towards the inner wall of the locking groove 20. This fixes the position of the locking groove 20 with the locking block 9, thereby fixing the position of the extension ring 6. When ring 6 and PE pipe body 4 are fixed, the connection of PE pipe body 4 is completed. When leakage occurs, liquid enters the interior of sealing shell 2 and flows down the inner wall of sealing shell 2 to the top of horizontal plate 13. At this time, the weight above horizontal plate 13 increases, causing horizontal plate 13 to move downward, which in turn causes horizontal plate 13 to drive pressure column 17 to move towards trigger pressure sensor 15. When pressure column 17 is in contact with trigger pressure sensor 15, trigger pressure sensor 15 is triggered, which in turn causes trigger pressure sensor 15 to send an electrical signal to warning light 3, causing warning light 3 to flash. The flashing of warning light 3 alerts nearby personnel that the equipment is leaking.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick coupling for non-buried PE pipes comprising a coupling barrel (1), characterized in that: A sealing shell (2) is fixedly installed on the outer wall of the connecting cylinder (1). A warning light (3) is fixedly installed on the top of the sealing shell (2). A sealing cover (5) is provided on the outer wall of the sealing shell (2). A PE pipe body (4) is slidably connected to the inner wall of the connecting cylinder (1). An extension ring (6) is fixedly installed on the outer wall of the sealing cover (5). An extension ring (7) is fixedly installed on the outer wall of the PE pipe body (4). A sealing rubber ring (18) is fixedly installed at one end of the PE pipe body (4) located on the inner wall of the connecting cylinder (1). A fixing bushing (19) is fixedly installed on the inner wall of the connecting cylinder (1). A sliding plate (8) is slidably connected to the inner wall of the extension ring (7). A locking block (9) is fixedly installed on the outer wall of the sliding plate (8). A threaded column (10) is rotatably connected to the side of the sliding plate (8) away from the locking block (9). A locking groove (20) is opened on the outer wall of the extension ring (6). A spring (11) is provided on the inner wall of the sealing shell (2). A hollow groove (16) is opened at the bottom of the sealing shell (2). A limit groove (12) is opened on the inner wall of the sealing shell (2). A horizontal plate (13) is slidably connected to the inner wall of the sealing shell (2). A limit block (14) is fixedly installed on the outer wall of the horizontal plate (13). A trigger-type pressure sensor (15) is fixedly installed on the inner wall of the sealing shell (2). A pressure column (17) is fixedly installed at the bottom of the horizontal plate (13).

2. A quick coupling for non-buried PE pipes according to claim 1, characterized in that: The pressure column (17) is located directly above the trigger pressure sensor (15), and the trigger pressure sensor (15) is electrically connected to the warning light (3).

3. A quick coupling for non-buried PE pipes according to claim 1, characterized in that: The shape of the limiting block (14) is adapted to the shape of the limiting groove (12), and the limiting block (14) is located on the inner wall of the limiting groove (12).

4. The quick coupling for a non-buried PE pipe according to claim 1, characterized in that: The threaded post (10) passes through the extension ring (7), and the threaded post (10) and the extension ring (7) are threaded together.

5. A quick coupling for a non-buried PE pipe according to claim 1, characterized in that: The shape of the locking block (9) is adapted to the shape of the locking groove (20), and the positions of the locking block (9) and the locking groove (20) correspond to each other.

6. The quick coupling for a non-buried PE pipe according to claim 1, characterized in that: The shape of the sliding plate (8) is adapted to the inner wall shape of the extension ring (7), and the sliding plate (8) is in contact with the inner wall of the extension ring (7).

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