An assembled PE water supply pipe

Abstract

This utility model discloses an assembled PE water supply pipe, belonging to the field of pipe connection technology. The assembled PE water supply pipe includes a first pipe body and a second pipe body. A connecting sleeve is fitted onto the outer surface of the first pipe body, and the connecting sleeve and the second pipe body are sleeved together. A quick-locking device is provided inside the connecting sleeve. A sealing seat is movably connected to the inner wall of the first pipe body, and a sealing ring is fitted onto the sealing seat. Multiple claws are fixedly connected to the end of the sealing seat. Through the quick-locking device, when two locking balls engage with two positioning grooves, the locking blocks continue to move under the sliding cooperation of two pressure blocks and corresponding slide rails, moving the locking blocks above the locking balls, thereby firmly fixing the locking balls in the positioning grooves, completing the final locking, and ensuring that the sealing ring is compressed to achieve a working sealing state. This prevents the connection from loosening under fluid pressure, improves the safety and stability of the pipe connection, requires no special tools, is easy to operate, and can be quickly installed and disassembled.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and more specifically, to an assembled PE water supply pipe. Background Technology

[0002] PE water supply pipes are pipeline systems specifically designed for transporting drinking water, made primarily from polyethylene (PE) through an extrusion process. Due to their excellent physical properties, environmental friendliness, and ease of installation, they have become one of the most widely used pipe materials in modern water supply projects.

[0003] In the prior art, patent CN214839004U discloses a PE water supply pipe, including a body and a protective layer sleeved on the body. The protective layer includes a reflective inner layer, a middle layer, and a reflective outer layer, sequentially covering the body from the inside out. A transition layer is also provided between the body and the protective layer, and the transition layer is fixedly connected to the body. A serrated reflector is arranged around the transition layer. This utility model, by setting two reflective layers, can effectively reflect ultraviolet rays from the outside of the pipe, minimizing the impact of ultraviolet rays on the pipe body and delaying the aging and cracking of the pipe under sunlight. Furthermore, the transition layer between the body and the protective layer also helps to reduce the impact of external ultraviolet rays on the body, further extending the service life of the pipe.

[0004] Although the PE water supply pipe can reduce the impact of external ultraviolet rays on the pipe body and further extend the service life of the pipe fittings, traditional PE pipe connection methods mainly include heat fusion and electrofusion. While these methods can achieve reliable connections, they are highly dependent on specialized equipment, require highly skilled operators, and are limited by site environment and power conditions. In addition, when the connection needs to be repaired or disassembled, these permanent connection methods are extremely inconvenient, often requiring pipe cutting, resulting in material waste and extended construction time. Therefore, developing a mechanical connection solution that does not require complex equipment, is easy to operate, and can be repeatedly disassembled has significant practical value. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an assembled PE water supply pipe, which solves the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution: an assembled PE water supply pipe, comprising a first pipe body and a second pipe body, wherein a connecting sleeve is fitted onto the outer surface of the first pipe body, the connecting sleeve and the second pipe body are sleeved together, and a quick-locking device is provided inside the connecting sleeve; a sealing seat is movably connected to the inner wall of the first pipe body, a sealing ring is fitted onto the sealing seat, and multiple claws are fixedly connected to the end of the sealing seat; a connecting key that cooperates with the claws is fixedly connected to the outer surface of the end of the second pipe body.

[0009] Preferably, the quick locking device includes a locking block, a positioning groove, a slide rail, a pressure block, and a locking ball. The top of the connecting sleeve has two slide rails, and the inside of each of the two slide rails is slidably connected to a pressure block. The top of each of the two pressure blocks is fixedly connected to a locking block. The inner wall of the connecting sleeve is fixedly connected to a locking ball. The outer surface of the second tube has a positioning groove that mates with the locking ball.

[0010] Preferably, the outer surface of each claw is provided with a locking slot, and the connecting key is movably engaged with the locking slot.

[0011] Preferably, the inner diameter of the central channel formed by the plurality of said claws is substantially the same as the inner diameter of the connecting pipe.

[0012] Preferably, the claw is movably connected to the inner wall of the first tube.

[0013] Preferably, a first connecting pipe is fixedly connected inside the first pipe body, and a second connecting pipe is fixedly connected inside the second pipe body. The first connecting pipe and the second connecting pipe are used to transport fluid, and both the first connecting pipe and the second connecting pipe are hollow.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides an assembled PE water supply pipe, which has the following advantages:

[0016] This modular PE water supply pipe features a quick-locking device. Six connecting keys are aligned and inserted into six bayonets. The second pipe body is then rotated to initially engage with the first pipe body via the connecting keys and bayonets, compressing the sealing ring to form a preliminary seal. The mating ends of both the first and second pipe bodies are located inside the connecting sleeve. Subsequently, two locking blocks are moved. Once the two locking balls engage with the two positioning grooves, the locking blocks continue to move above the locking balls under the sliding cooperation of the two pressure blocks and corresponding slide rails, thus firmly fixing the locking balls in the positioning grooves. This completes the final locking and ensures the sealing ring is compressed to achieve a working seal. The multi-stage locking mechanism makes the connection between the first and second pipe bodies extremely secure and reliable, effectively preventing loosening under fluid pressure. This significantly improves the safety and stability of the pipe connection. Furthermore, the process requires no special tools, is easy to operate, and allows for quick installation and disassembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structural connection state of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model in an unconnected state;

[0019] Figure 3 This is a partial structural exploded view of the present utility model;

[0020] Figure 4 This is a cross-sectional view of the structural connection state of this utility model.

[0021] In the diagram: 1. First pipe body; 2. Second pipe body; 3. First connecting pipe; 4. Connecting sleeve; 5. Locking block; 6. Second connecting pipe; 7. Claw; 8. Bayonet; 9. Slide rail; 10. Connecting key; 11. Sealing seat; 12. Pressure block; 13. Ball retainer; 14. Sealing ring; 15. Positioning groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0023] Please see Figures 1-4 This utility model provides a technical solution:

[0024] An assembled PE water supply pipe includes a first pipe body 1 and a second pipe body 2. Both the first pipe body 1 and the second pipe body 2 are provided with connecting pipes for conveying fluid. A connecting sleeve 4 is sleeved on the outer surface of the first pipe body 1. The connecting sleeve 4 and the second pipe body 2 are sleeved together. The connecting sleeve 4 is provided with a quick locking device inside. The connecting sleeve 4 can fix the first pipe body 1 and the second pipe body 2.

[0025] Furthermore, the quick-locking device includes a locking block 5, a positioning groove 15, a slide rail 9, a pressure block 12, and a locking ball 13. The top of the connecting sleeve 4 has two slide rails 9, and the inside of each slide rail 9 is slidably connected to a pressure block 12. The top of each pressure block 12 is fixedly connected to a locking block 5. The inner wall of the connecting sleeve 4 is fixedly connected to two annularly distributed locking balls 13. The outer surface of the second tube 2 has two annularly distributed positioning grooves 15. When the two locking blocks 5 are moved, and the two locking balls 13 are engaged with the two positioning grooves 15, the locking blocks 5 are moved under the sliding cooperation of the two pressure blocks 12 and the corresponding slide rails 9, so that the locking blocks 5 are positioned above the locking balls 13, thereby fixing the locking balls 13 in the positioning grooves 15.

[0026] Furthermore, a sealing seat 11 is movably connected to the inner wall of the first tube 1, and six equidistantly distributed circumferential claws 7 are fixedly connected to the end of the sealing seat 11. The outer surface of each of the six claws 7 is provided with a notch 8. Six equidistantly distributed circumferential connecting keys 10 are fixedly connected to the outer surface of the end of the second tube 2. The six connecting keys 10 are distributed in a T-shape. The sealing seat 11 can move inside the first tube 1 to facilitate the opening or closing of the claws 7. A sealing ring 14 is fitted on the sealing seat 11.

[0027] Furthermore, the six bayonets 8 are movably engaged with the six connecting keys 10, and the two positioning slots 15 are movably engaged with the corresponding locking balls 13. After the six connecting keys 10 are inserted into the six bayonets 8, the second tube 2 is rotated, so that the second tube 2 and the first tube 1 are initially connected and circumferentially positioned through the connecting keys 10 and bayonets 8, while the sealing ring 14 is compressed to form a seal.

[0028] Furthermore, the central channel formed by the six claws 7 is connected to the connecting pipe of the second pipe body 2 to guide the fluid and help ensure the coaxiality of the connection. Its inner wall is smoothly transitioned to reduce fluid resistance.

[0029] Furthermore, the six claws 7 are movably connected to the inner wall of the first tube 1, allowing the sealing seat 11 to drive the claws 7 to move axially, providing space for the insertion and removal of the connecting key 10.

[0030] Furthermore, a first connecting pipe 3 is fixedly connected inside the first pipe body 1, and a second connecting pipe 6 is fixedly connected inside the second pipe body 2. The first connecting pipe 3 and the second connecting pipe 6 are used to transport fluid. Both the first connecting pipe 3 and the second connecting pipe 6 are hollow. The first connecting pipe 3 and the second connecting pipe 6 are used for unblocking and connecting.

[0031] Working Principle: When connecting two PE water supply pipes, firstly, pull the first pipe body 1 outwards to move it relative to the sealing seat 11, causing the six claws 7 to extend and open from the end of the first pipe body 1. Align the six connecting keys 10 at the end of the second pipe body 2 and insert them into the slots 8 on the six claws 7. Then, slowly rotate and push the second pipe body 2 to initially lock the connecting keys 10 with the slots 8. During this process, the sealing ring 14 begins to contact and compress with the inner wall of the second pipe body 2. At this time, the mating ends of the first pipe body 1 and the second pipe body 2 are both located inside the connecting sleeve 4. Subsequently, move the two locking blocks 5 along the slide rail 9. The retaining ball 13 on the inner wall of the connecting sleeve 4 falls into the positioning groove 15 on the second pipe body 2 under pressure. Continue to move the locking blocks 5 until they completely cover the retaining ball 13. The pressing block 12 presses the retaining ball 13 tightly against the bottom of the positioning groove 15. This final locking action further compresses the sealing ring 14, ensuring that it reaches the designed sealing pressure, thereby completing the final secure locking and sealing. Disassembly can be performed by simply reversing the operation; the entire process requires no heat-melting equipment and is simple and quick.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An assembled PE water pipe comprising a first pipe body (1) and a second pipe body (2), characterized in that: A connecting sleeve (4) is fitted onto the outer surface of the first tube (1), and the connecting sleeve (4) and the second tube (2) are fitted together. A quick locking device is provided inside the connecting sleeve (4). A sealing seat (11) is movably connected to the inner wall of the first tube (1), and a sealing ring (14) is fitted onto the sealing seat (11). Multiple claws (7) are fixedly connected to the end of the sealing seat (11), and a connecting key (10) that cooperates with the claws (7) is fixedly connected to the outer surface of the end of the second tube (2).

2. An assembled PE water pipe according to claim 1, characterized in that: The quick locking device includes a locking block (5), a positioning groove (15), a slide rail (9), a pressure block (12), and a locking ball (13). The top of the connecting sleeve (4) has two slide rails (9), and the inside of each of the two slide rails (9) is slidably connected to a pressure block (12). The top of each of the two pressure blocks (12) is fixedly connected to a locking block (5). The inner wall of the connecting sleeve (4) is fixedly connected to a locking ball (13). The outer surface of the second tube (2) is provided with a positioning groove (15) that cooperates with the locking ball (13).

3. The assembled PE water supply pipe according to claim 1, characterized in that: The outer surface of each claw (7) is provided with a slot (8), and the connecting key (10) is movably engaged with the slot (8).

4. The assembled PE water supply pipe according to claim 1, characterized in that: The inner diameter of the central channel formed by the multiple claws (7) is basically the same as the inner diameter of the connecting pipe.

5. The assembled PE water supply pipe according to claim 1, characterized in that: The claw (7) is movably connected to the inner wall of the first tube (1).

6. The assembled PE water supply pipe according to claim 1, characterized in that: The first pipe body (1) is fixedly connected to a first connecting pipe (3), and the second pipe body (2) is fixedly connected to a second connecting pipe (6). The first connecting pipe (3) and the second connecting pipe (6) are used to transport fluid. Both the first connecting pipe (3) and the second connecting pipe (6) are hollow.

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