Adapter for PE pipe and metal pipe of water supply pipe network
By designing a transition joint between PE pipes and metal pipes in the water supply network, and utilizing threaded and toothed connections as well as rubber ring seals, the problem of unreliable connections between PE pipes and metal pipes was solved, thus improving sealing performance and stability.
Patent Information
- Application Number
- CN202520849870.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-04-30
AI Technical Summary
In existing technologies, the connection between PE pipes and metal pipes is unreliable, resulting in insufficient sealing and durability of the water supply network system, and failing to effectively solve the problem of connecting dissimilar materials.
A water supply network PE pipe to metal pipe adapter was designed, including PE pipe, locking ring, first tight-closing ring, second tight-closing ring and connecting pipe. Through the cooperation of threads and teeth, combined with the interference fit of rubber ring and sealing ring, a reliable connection between PE pipe and metal pipe is achieved.
This achieves a reliable connection between PE pipes and metal pipes, improves the sealing and stability of the water supply network system, avoids leakage problems caused by thermal expansion and contraction, and enhances the overall stability and economy of the system.
Smart Images
Figure CN223768331U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rural tap water supply, and in particular to the adapter joint between PE pipe and metal pipe in water supply network. Background Technology
[0002] In municipal water supply, agricultural irrigation, and industrial water transmission, polyethylene (PE) pipes have gradually replaced traditional metal pipes (such as steel and cast iron pipes) due to their advantages such as strong corrosion resistance, high flexibility, light weight, and long service life. However, in actual engineering projects, the connection between PE pipes and existing metal pipe networks or special pipe sections (such as valve and pump station interfaces) is still unavoidable. The reliability of the transition joints directly affects the sealing, durability, and operational safety of the pipe network system.
[0003] Due to thermal expansion and contraction during daily use, PE pipes and metal pipes are usually not directly connected. Instead, adapters are typically used. Therefore, there is a need for a reliable, sealed adapter that can connect PE pipes and metal water pipes to solve the key technical bottleneck in connecting dissimilar materials such as PE pipes and metal pipes, thereby improving the overall stability and economy of the water supply network system. Summary of the Invention
[0004] The purpose of this utility model is to address the aforementioned problems by providing a PE pipe and metal pipe adapter for water supply networks.
[0005] To address the aforementioned issues, a PE pipe to metal pipe adapter for water supply networks is provided. The adapter comprises a PE pipe, a locking ring, a first locking ring, a second locking ring, and a connecting pipe. The connecting pipe is threaded, and the inner wall of the locking ring is provided with threaded teeth. The threads and threaded teeth engage with each other. Multiple sets of extrusion blocks are evenly distributed around the center of the connecting pipe at one end. The outer surface of each extrusion block is provided with threads that engage with the threaded teeth inside the locking ring.
[0006] Preferably, one end of the locking ring needs to be subjected to a drafting process, and the inner diameter of the end of the drafting process of the locking ring is smaller than that of the beginning end of the drafting process.
[0007] Preferably, both the draft start end and the draft end are provided with connecting rings, which are used to connect the closed-loop structure.
[0008] Preferably, the first closing ring is bolted to the end of the locking ring demolding, a sealing ring is provided between the contact surfaces of the first closing ring and the locking ring, and a first rubber ring is provided inside the first closing ring, with the inner diameter of the first rubber ring being interference-fitted with the outer diameter of the PE pipe.
[0009] Preferably, a second closing ring is bolted to the end of the locking ring away from the first closing ring, a sealing ring is provided between the contact surface of the second closing ring and the locking ring, a second rubber ring is provided inside the second closing ring, and the inner diameter of the second rubber ring is interference-fitted with the outer diameter of the connecting pipe.
[0010] In summary, the beneficial effects of this utility model are:
[0011] This utility model, through modifications and additions to certain structures, enables the connection of PE pipes to metal pipes. The first rubber ring prevents excessive gaps between the first sealing ring and the PE pipe, thus preventing leaks. The second rubber ring prevents excessive gaps between the second sealing ring and the connecting pipe, also preventing leaks. The sealing rings prevent excessive gaps between the contact surfaces of the first sealing ring and the locking ring, and vice versa. The connecting pipe can be connected to a metal pipe clamp or by thread. Thus, this utility model achieves the effect of connecting PE pipes to metal pipes. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the connecting pipe structure of this utility model.
[0015] In the diagram: 1. PE pipe; 2. Connecting pipe; 211. Extrusion block; 3. Locking ring; 311. Threaded tooth; 312. Connecting ring; 321. Thread; 4. First tight-closing ring; 411. First rubber ring; 5. Second tight-closing ring; 511. Second rubber ring; 6. Sealing ring. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to facilitate a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.
[0017] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0018] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0019] Please see Figure 1-3 As shown, it includes a PE pipe 1, a locking ring 3, a first tight-closing ring 4, a second tight-closing ring 5, and a connecting pipe 2. The connecting pipe 2 is provided with threads 321, and the inner wall of the locking ring 3 is provided with threads 311. The threads 321 and the threads 311 cooperate with each other. Multiple sets of extrusion blocks 211 are evenly distributed around the center of the connecting pipe 2 at one end. The outer surface of the extrusion block 211 is provided with threads 321 that cooperate with the threads 311 provided in the locking ring 3.
[0020] Furthermore, one end of the locking ring 3 needs to undergo a drafting process, and the inner diameter of the end of the drafting process of the locking ring 3 is smaller than that of the beginning end.
[0021] Furthermore, both the draft start end and the draft end are provided with connecting rings 312, which are used to connect the closed-loop structure.
[0022] Furthermore, the first tight-closing ring 4 is bolted to the end of the mold release of the locking ring 3. A sealing ring 6 is provided between the contact surfaces of the first tight-closing ring 4 and the locking ring 3. A first rubber ring 411 is provided inside the first tight-closing ring 4. The inner diameter of the first rubber ring 411 is interference-fitted with the outer diameter of the PE pipe 1.
[0023] Furthermore, a second closing ring 5 is bolted to the end of the locking ring 3 away from the first closing ring 4. A sealing ring 6 is provided between the contact surface of the second closing ring 5 and the locking ring 3. A second rubber ring 511 is provided inside the second closing ring 5. The inner diameter of the second rubber ring 511 is interference-fitted with the outer diameter of the connecting pipe 2.
[0024] In use, this invention involves first fitting the second closing ring 5 and the second rubber ring 511 onto the surface of the connecting pipe 2, and simultaneously fitting the first closing ring 4 and the first rubber ring 411 onto the surface of the PE pipe 1. The locking ring 3 is then bolted to the first closing ring 4. After connecting the connecting pipe 2 to the locking ring 3 via thread 321, the second closing ring 5 is bolted to the locking ring 3 to complete the installation. By modifying and adding some structural elements, the PE pipe 1 can be connected to a metal pipe, and the first rubber ring 411 can ensure the first closing ring 5 is bolted to the surface of the PE pipe 1. Excessive gap between the closed loop 4 and the PE pipe 1 can cause water leakage. The second rubber ring 511 can prevent excessive gap between the second tight closed loop 5 and the connecting pipe 2 from causing water leakage. The sealing ring 6 can prevent excessive gap between the contact surfaces of the first tight closed loop 4 and the locking ring 3 from causing water leakage. The connecting pipe 2 can be connected to the metal pipe clamp or by thread 321. Thus, this utility model can be used to achieve the effect of connecting PE pipe and metal pipe.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not restrictive. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A water supply network PE pipe and metal pipe adapter joint, characterized in that, The utility model provides a PE pipeline (1), locking ring (3), first close ring (4), second close ring (5) and connecting pipe (2), be provided with screw thread (321) on connecting pipe (2), locking ring (3) inner wall is provided with screw tooth (311), screw thread (321) and screw tooth (311) cooperate with each other, the one end of connecting pipe (2) is uniformly distributed with a plurality of extrusion blocks (211) with the center position of connecting pipe (2) as the pivot, the outer surface of extrusion block (211) is provided with the screw thread (321) of cooperation with the screw tooth (311) of locking ring (3) inner setting.
2. The PE pipe and metal pipe adapter joint for water supply network according to claim 1, characterized in that: The locking ring (3) one end needs to be drawn, and the inner diameter of the locking ring (3) at the end of the drawing is smaller than that at the beginning of the drawing.
3. The PE pipe and metal pipe adapter fitting for water distribution networks according to claim 1, characterized in that: The beginning and end of the drawing are provided with a connecting ring (312), which is used to connect the close ring structure.
4. The PE pipe to metal pipe adapter fitting for water service pipe networks of claim 1, wherein: The first close ring (4) is fixedly connected to the end of the drawing of the locking ring (3).
5. The PE pipe to metal pipe adapter fitting for water service pipe networks of claim 1, wherein: The first close ring (4) and the locking ring (3) are provided with a sealing ring (6) between the contact surfaces, the first close ring (4) is provided with a first rubber ring (411), and the inner diameter of the first rubber ring (411) is in interference fit with the outer diameter of the PE pipeline (1).
6. The PE pipe to metal pipe adapter fitting for water service pipe networks of claim 1, wherein: The locking ring (3) is fixedly connected with the second close ring (5) away from the first close ring (4).
7. The PE pipe to metal pipe adapter fitting for water service pipe networks of claim 1, wherein: The second close ring (5) and the locking ring (3) are provided with a sealing ring (6) between the contact surfaces, the second close ring (5) is provided with a second rubber ring (511), and the inner diameter of the second rubber ring (511) is in interference fit with the outer diameter of the connecting pipe (2).