Expansion lock seal connection polyethylene pipe assembly

Abstract

The utility model relates to polyethylene pipe technical field especially for expansion lock sealing connection polyethylene pipe assembly, including polyethylene pipe assembly and cast iron joint, polyethylene pipe assembly outside fixedly connected with external component, external component left side fixedly connected with storage telescopic component, storage telescopic component left side fixedly connected with extrusion plate, polyethylene pipe assembly spiral connection has the rotator, cast iron joint outside is provided with the assembly groove, polyethylene pipe assembly includes polyethylene pipe body, polyethylene pipe body outside fixedly connected with screw groove, polyethylene pipe body inside is provided with accommodating recess, accommodating recess inside slide connection has the retaining block, the retaining block one end fixedly connected with the plug -in post, the plug -in post outside fixedly connected with first rubber seal ring, in the utility model, polyethylene pipe assembly expansion lock sealing connection technology installation and dismantling are simple, need not the tool, and the sealing property is good, and the stability is high, and the construction maintenance convenience is promoted.

Description

Technical Field

[0001] This utility model relates to the field of polyethylene pipe technology, specifically to an expansion-lock sealing connection polyethylene pipe assembly. Background Technology

[0002] Polyethylene pipe assemblies are piping systems made of polyethylene material. These systems are particularly suitable for transporting fluids such as water, natural gas, and chemical raw materials. They are also suitable for irrigation systems, municipal water supply, drainage systems, and underground cable protection pipes. The corrosion resistance of polyethylene pipes makes them especially popular in the chemical industry, as they can resist the erosion of various chemicals, thereby extending the service life of the pipes. In addition, the wear resistance of polyethylene pipes ensures that the wear inside the pipes is low when transporting fluids containing solid particles, and the maintenance cost is relatively low. The expansion-lock sealing connection polyethylene pipe assembly is a system that uses expansion-lock technology to connect polyethylene pipes. It uses a specially designed expansion-lock ring at the end of the pipe. When the expansion-lock ring is axially compressed, its diameter increases and it fits tightly with the inner wall of the adjacent pipe to form a sealed connection. This connection method does not require the use of glue or welding, is easy and quick to install, and provides good sealing performance and structural stability. It is suitable for polyethylene pipe systems in various industrial and civil applications. The expansion lock connection of polyethylene pipe assemblies is achieved by the expansion of the expansion lock ring. This connection method provides good sealing during installation, but it also means that the expansion force needs to be overcome during disassembly. This requires special tools to safely release the connection, which increases the difficulty of disassembly. Therefore, an expansion lock sealing connection polyethylene pipe assembly is proposed to address the above problems. Utility Model Content

[0003] The purpose of this invention is to provide an expansion-lock sealing connection polyethylene pipe assembly to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An expansion-lock sealing connection for a polyethylene pipe assembly includes a polyethylene pipe assembly and a cast iron connector. An external component is fixedly connected to the outer side of the polyethylene pipe assembly. A storage telescopic component is fixedly connected to the left side of the external component. An extrusion plate is fixedly connected to the left side of the storage telescopic component. A swivel ring is spirally connected to the polyethylene pipe assembly. An assembly groove is provided on the outer side of the cast iron connector. The polyethylene pipe assembly includes a polyethylene pipe body. A threaded groove is fixedly connected to the outer side of the polyethylene pipe body. A receiving groove is provided on the inner side of the polyethylene pipe body. A stop block is slidably connected to the inner side of the receiving groove. A plug is fixedly connected to one end of the stop block. A first rubber sealing ring is fixedly connected to the outer side of the plug block. A sealing airbag ring is fixedly connected to the inner side of the polyethylene pipe body. A first connecting channel is provided on the inner side of the polyethylene pipe body. The external component includes an external ring. An internal column groove, a second connecting channel, and a third connecting channel are provided on the inner side of the external ring. A limit stop is fixedly connected to the inner side of the internal column groove. The outer side of the polyethylene pipe body is fixedly connected to the inner side of the external ring.

[0005] As a further optimization of this utility model, the storage telescopic assembly includes a storage shell, with a communication port and a storage groove on the inner side of the storage shell. A movable column is slidably connected to the inner side of the storage shell, and a second rubber sealing ring is fixedly connected to the outer side of the movable column. A spring is fixedly connected to one end of the storage groove near the communication port, and the left end of the spring is fixedly connected to the movable column. The outer side of the second rubber sealing ring is in contact with the inner side of the storage groove.

[0006] As a further optimization of this utility model, the right side of the multiple storage shells is fixedly connected to the left side of the outer ring, the upper connecting port is connected to the second connecting channel, the front connecting port is connected to the third connecting channel, the left side of the multiple storage shells is fixedly connected to the right side of the extrusion plate, and the second connecting channel, the built-in column groove and the corresponding connected storage groove are all filled with hydraulic oil.

[0007] As a further optimization of this utility model, the inner side of the rotating ring is provided with a threaded hole, the rotating ring is sleeved on the outer side of the polyethylene pipe body, and the threaded hole of the rotating ring is helically connected to the threaded groove.

[0008] As a further optimization of this utility model, the cast iron connector is inserted into the inner side of the polyethylene pipe body, the plane on the left side of the stop block is in contact with the left side of the assembly groove, the sealing airbag ring is located inside the assembly groove, and the outer side of the sealing airbag ring is in contact with the inner side of the assembly groove.

[0009] As a further optimization of this utility model, the receiving groove is a circular hole near the built-in column groove, the receiving groove is connected to the built-in column groove, the insert slides on the inner side of the receiving groove, the outer side of the first rubber sealing ring is in contact with the inner side of the receiving groove, and one-third of the stop block is located inside the receiving groove.

[0010] As a further optimization of this utility model, the inner side of the sealing airbag ring is a hollow structure, the inner side of the sealing airbag ring is connected to the first connecting channel, and the first connecting channel is connected to the third connecting channel.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the polyethylene pipe assembly expansion lock sealing connection technology, through the setting of polyethylene pipe assembly, storage expansion assembly, and external assembly, has significant advantages. It achieves a sealing connection through the expansion of the expansion lock ring, eliminating the need for glue or welding, making installation simple and quick. It also provides good sealing performance and structural stability. This connection method does not require special tools during installation and disassembly, making operation simple and greatly improving the convenience of construction and maintenance. In addition, the stability of the expansion lock connection can effectively prevent the pipeline from detaching during use, ensuring the safety and reliability of the pipeline system. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A; Figure 4 This utility model Figure 2 A schematic diagram of the structure at point B; Figure 5 This is a schematic diagram of the cast iron joint structure of this utility model; Figure 6 This is a schematic diagram of the polyethylene pipe body structure of this utility model; Figure 7 This is a schematic diagram of the storage telescopic component structure of this utility model.

[0013] In the figure: 1. Polyethylene pipe assembly; 11. Polyethylene pipe body; 12. Threaded groove; 13. Receiving groove; 14. Stop block; 15. Insert post; 16. First rubber sealing ring; 17. Sealing airbag ring; 18. First connecting channel; 2. Storage telescopic assembly; 21. Storage shell; 22. Communicating port; 23. Storage groove; 24. Movable column; 25. Second rubber sealing ring; 26. Spring; 3. Cast iron joints; 4. External components; 41. External ring; 42. Internal column groove; 43. Limiting stop; 44. Second connecting channel; 45. Third connecting channel; 5. Extrusion plate; 6. Rotary ring; 7. Assembly groove. Detailed Implementation

[0014] 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.

[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0016] Please see Figures 1-7 This utility model provides a technical solution: The expansion-lock sealing connection of the polyethylene pipe assembly includes a polyethylene pipe assembly 1 and a cast iron connector 3. An external component 4 is fixedly connected to the outside of the polyethylene pipe assembly 1. A storage telescopic component 2 is fixedly connected to the left side of the external component 4. An extrusion plate 5 is fixedly connected to the left side of the storage telescopic component 2. A swivel ring 6 is spirally connected to the polyethylene pipe assembly 1. An assembly groove 7 is provided on the outside of the cast iron connector 3. The polyethylene pipe assembly 1 includes a polyethylene pipe body 11. A threaded groove 12 is fixedly connected to the outside of the polyethylene pipe body 11. A receiving groove 13 is provided on the inside of the polyethylene pipe body 11. A stop 14 is slidably connected to the inner side of the polyethylene pipe body 11. A plug 15 is fixedly connected to one end of the stop 14. A first rubber sealing ring 16 is fixedly connected to the outer side of the plug 15. A sealing airbag ring 17 is fixedly connected to the inner side of the polyethylene pipe body 11. A first connecting channel 18 is opened on the inner side of the polyethylene pipe body 11. The external component 4 includes an external ring 41. An internal column groove 42, a second connecting channel 44 and a third connecting channel 45 are opened on the inner side of the external ring 41. A limit stop 43 is fixedly connected to the inner side of the internal column groove 42. The outer side of the polyethylene pipe body 11 is fixedly connected to the inner side of the external ring 41.

[0017] As a further implementation of this solution, the storage telescopic assembly 2 includes a storage shell 21. The storage shell 21 has a communication port 22 and a storage groove 23 on its inner side. A movable column 24 is slidably connected to the inner side of the storage shell 21. A second rubber sealing ring 25 is fixedly connected to the outer side of the movable column 24. A spring 26 is fixedly connected to one end of the storage groove 23 near the communication port 22. The left end of the spring 26 is fixedly connected to the movable column 24. The outer side of the second rubber sealing ring 25 is in contact with the inner side of the storage groove 23. The right side of multiple storage shells 21 is fixedly connected to the left side of the outer ring 41. The upper communication port 22 is connected to the second connecting channel 44. The front communication port 22 is connected to the third connecting channel 45. The left side of multiple storage shells 21 is fixedly connected to the right side of the extrusion plate 5. The second connecting channel 44, the built-in column groove 42 and the corresponding connected storage groove 23 are all filled with hydraulic oil. With the above settings, the storage telescopic assembly 2 can store hydraulic oil or gas. By extruding the storage telescopic assembly 2, hydraulic oil or air can enter the corresponding channel, thereby achieving the expansion and locking effect without contacting external tools. As a further implementation of this solution, the inner side of the rotating ring 6 is provided with a threaded hole, and the rotating ring 6 is sleeved on the outer side of the polyethylene pipe body 11. The threaded hole of the rotating ring 6 is spirally connected to the threaded groove 12. Through the above settings, the design of the rotating ring 6 can compress the extrusion plate 5, and the design of the rotating ring 6 improves the convenience of fixing and disassembling. As a further implementation of this solution, the cast iron connector 3 is inserted into the inner side of the polyethylene pipe body 11, the left side plane of the stop block 14 fits with the left side of the assembly groove 7, the sealing airbag ring 17 is located inside the assembly groove 7, the outer side of the sealing airbag ring 17 fits with the inner side of the assembly groove 7, the receiving groove 13 is a round hole near the built-in column groove 42, the receiving groove 13 is connected to the built-in column groove 42, the insert 15 slides on the inner side of the receiving groove 13, the outer side of the first rubber sealing ring 16 fits with the inner side of the receiving groove 13, and one-third of the stop block 14 is located inside the receiving groove 13. Through the above settings, this insertion and fitting design ensures the tightness and sealing of the pipe connection, and the expansion of the sealing airbag ring 17 further enhances the stability of the connection, prevents leakage or detachment of the pipe during use, and ensures the safe operation of the pipeline system. As a further implementation of this solution, the inner side of the sealing airbag ring 17 is a hollow structure, and the inner side of the sealing airbag ring 17 is connected to the first connecting channel 18. The first connecting channel 18 is connected to the third connecting channel 45. Through the above settings, the hollow structure and the connecting design allow air to flow during the expansion and locking process, and the sealing is achieved by the expansion of the air, which improves the flexibility and adaptability of the connection and further enhances the sealing performance and stability of the pipeline system.

[0018] Workflow: When installing the polyethylene pipe assembly 1 and the cast iron connector 3, before this, the stop block 14 is housed inside the receiving groove 13, and the sealing airbag ring 17 is in a retracted state. The cast iron connector 3 is aligned with the groove on the inner side of the right end of the polyethylene pipe body 11 and inserted. When the left side of the cast iron connector 3 is in contact with the polyethylene pipe body 11, the rotating ring 6 is rotated. The rotating ring 6 rotates to the outside of the threaded groove 12. At this time, the rotating ring 6 moves to the right and squeezes the extrusion plate 5. The extrusion plate 5 moves to the right and drives the movable column 24 to move to the right. The movable column 24 slides inside the storage groove 23 and squeezes the spring 26. Under the action of the elastic force of the spring 26, the movable column 24 moves to the left. Through the squeezing of the movable column 24, the hydraulic pressure inside the upper and lower storage grooves 23 flows into the interior column groove 42 through the connecting port 22 and the second connecting channel 44. The limiting stop 43 limits the upward movement of the insertion column 15. Under the action of the oil thrust, the insert 15 and the stop 14 move toward the assembly groove 7. The stop 14 slides inside the receiving groove 13. The front and rear ends of the stop 14 are fixed with limit sliders. When the stop 14 moves, the left end of the stop 14 is provided with a slope. The stop 14 squeezes the cast iron joint 3, which can improve the stability of the connection between the cast iron joint 3 and the polyethylene pipe body 11. After the plane of the left end of the stop 14 is in contact with the left side of the assembly groove 7, it can prevent the polyethylene pipe body 11 from separating from the cast iron joint 3. At the same time, when the extrusion plate 5 moves to the right, the air inside the storage telescopic component 2 at the front and rear ends and the storage groove 23 is squeezed. At this time, the air enters the interior of the sealing airbag ring 17 through the connecting port 22, the third connecting channel 45, and the first connecting channel 18, causing the sealing airbag ring 17 to expand, thereby achieving the sealing effect between the polyethylene pipe body 11 and the cast iron joint 3, thus completing the fixation between the polyethylene pipe body 11 and the cast iron joint 3. When disassembling the polyethylene pipe body 11 from the cast iron connector 3, rotate the rotating ring 6 in the opposite direction. The rotating ring 6 moves to the left. Under the action of the spring force 26, the movable column 24 moves to the left. The movable column 24 drives the extrusion plate 5 to move to the left. At this time, the corresponding hydraulic oil and air are drawn back. At this time, the stop block 14 and the sealing airbag ring 17 are reset accordingly. At this time, the cast iron connector 3 can be directly pulled out from the inside of the polyethylene pipe body 11 to complete the disassembly. Based on the above principles, the expansion locking mechanism of the device allows for fixing and disassembly without the need for tools, which improves the convenience of construction and maintenance.

[0019] 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. An expansion-lock sealing connection polyethylene pipe assembly, comprising a polyethylene pipe assembly (1) and a cast iron joint (3), characterized in that: The polyethylene pipe assembly (1) is fixedly connected to an external component (4), the external component (4) is fixedly connected to a storage telescopic component (2) on the left side, the storage telescopic component (2) is fixedly connected to an extrusion plate (5) on the left side, the polyethylene pipe assembly (1) is spirally connected to a swivel (6), and the cast iron joint (3) has an assembly groove (7) on its outside. The polyethylene pipe assembly (1) includes a polyethylene pipe body (11), a threaded groove (12) is fixedly connected to the outside of the polyethylene pipe body (11), a receiving groove (13) is opened on the inside of the polyethylene pipe body (11), a stop block (14) is slidably connected to the inside of the receiving groove (13), a plug post (15) is fixedly connected to one end of the stop block (14), a first rubber sealing ring (16) is fixedly connected to the outside of the plug post (15), a sealing airbag ring (17) is fixedly connected to the inside of the polyethylene pipe body (11), and a first connecting channel (18) is opened on the inside of the polyethylene pipe body (11). The external component (4) includes an external ring (41), and the inner side of the external ring (41) is provided with an internal column groove (42), a second connecting channel (44) and a third connecting channel (45). The inner side of the internal column groove (42) is fixedly connected with a limit stop (43). The outer side of the polyethylene pipe body (11) is fixedly connected to the inner side of the outer ring (41).

2. The expansion-lock sealing connection polyethylene pipe assembly according to claim 1, characterized in that: The storage telescopic assembly (2) includes a storage shell (21), with a communication port (22) and a storage groove (23) on the inner side of the storage shell (21). A movable column (24) is slidably connected to the inner side of the storage shell (21), and a second rubber sealing ring (25) is fixedly connected to the outer side of the movable column (24). A spring (26) is fixedly connected to one end of the storage groove (23) near the communication port (22). The left end of the spring (26) is fixedly connected to the movable column (24), and the outer side of the second rubber sealing ring (25) is in contact with the inner side of the storage groove (23).

3. The expansion-lock sealing connection polyethylene pipe assembly according to claim 2, characterized in that: The right side of the multiple storage shells (21) is fixedly connected to the left side of the outer ring (41), the upper end of the connecting port (22) is connected to the second connecting channel (44), the front end of the connecting port (22) is connected to the third connecting channel (45), the left side of the multiple storage shells (21) is fixedly connected to the right side of the extrusion plate (5), and the second connecting channel (44), the built-in column groove (42) and the corresponding connected storage groove (23) are all filled with hydraulic oil.

4. The expansion-lock sealing connection polyethylene pipe assembly according to claim 1, characterized in that: The inner side of the swivel (6) is provided with a threaded hole. The swivel (6) is sleeved on the outer side of the polyethylene pipe body (11). The threaded hole of the swivel (6) is spirally connected to the threaded groove (12).

5. The expansion-lock sealing connection polyethylene pipe assembly according to claim 1, characterized in that: The cast iron connector (3) is inserted into the inner side of the polyethylene pipe body (11), the left side plane of the stop block (14) is in contact with the left side of the assembly groove (7), the sealing airbag ring (17) is located inside the assembly groove (7), and the outer side of the sealing airbag ring (17) is in contact with the inner side of the assembly groove (7).

6. The expansion-lock sealing connection polyethylene pipe assembly according to claim 1, characterized in that: The receiving groove (13) is a round hole near the built-in column groove (42). The receiving groove (13) is connected to the built-in column groove (42). The insert (15) slides on the inner side of the receiving groove (13). The outer side of the first rubber sealing ring (16) is in contact with the inner side of the receiving groove (13). One-third of the stop block (14) is located inside the receiving groove (13).

7. The expansion-lock sealing connection polyethylene pipe assembly according to claim 1, characterized in that: The inner side of the sealing airbag ring (17) is hollow, and the inner side of the sealing airbag ring (17) is connected to the first connecting channel (18), and the first connecting channel (18) is connected to the third connecting channel (45).

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