Non-metal valve capable of being screwed and inserted
By designing threaded socket non-metallic valves, the cost and complexity issues caused by additional components in the connection between metal and non-metallic pipelines are solved, simplifying the connection and reducing the risk of leakage.
Patent Information
- Application Number
- CN202520570237.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Existing technologies require additional steel-plastic conversion parts when connecting metal and non-metal pipes, resulting in high economic costs, more leakage points, and increased construction complexity.
Design a non-metallic valve that can be threaded and socketed, with a smooth hole and a threaded end at both ends of the main body, and a ball valve and a wrench inside, for connecting non-metallic and metallic pipes, reducing the number of connecting parts.
It enables direct connection between non-metallic and metallic pipes, reducing production costs and construction difficulty, and minimizing leakage points.
Smart Images

Figure CN223768212U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pipeline connection technology, specifically to a non-metallic valve that can be threaded and socketed. Background Technology
[0002] In heating and water supply systems, there are two types of pipe networks: metal pipes and non-metal pipes. Existing connection valves can only connect pipes of the same material. If a connection between metal and non-metal pipes is needed, a steel-plastic adapter is required to allow for the connection of these two different materials. However, this method introduces a series of problems:
[0003] Increased economic costs: Using steel-plastic adapters as the connection medium results in additional material costs because specialized adapter components are required. Furthermore, the construction process may require more time and labor, further increasing installation costs.
[0004] Increased safety risks: The addition of conversion components means an increase in potential leakage points. Each connection is a potential point of failure, which could lead to water leaks or heat loss, affecting not only system efficiency but also potentially causing property damage and safety risks.
[0005] Increased construction complexity: The introduction of steel-plastic conversion components can make the installation process more complex and may require more operating space to accommodate the additional parts. This difficulty is particularly pronounced when working in confined spaces, such as inside buildings or underground pipe networks, which may prolong the construction period and reduce construction efficiency. Utility Model Content
[0006] Therefore, this application provides a threaded and socketable non-metallic valve to solve the problems of high economic cost, multiple leakage points, and complex construction when connecting metal and non-metallic pipes in the prior art.
[0007] To achieve the above objectives, this application provides the following technical solution:
[0008] A threaded socket non-metallic valve includes a body, both ends of which are open; one end is a smooth hole, serving as a socket end for connecting a non-metallic pipe; the other end is a threaded end for engaging with a metal pipe thread.
[0009] The main body is equipped with a ball valve inside, which is located between the socket end and the threaded end, and is used to cut off or connect the passages at the left and right ends inside the main body; a wrench is provided on the outer side wall of the main body for controlling the opening and closing of the ball valve.
[0010] Optionally, fasteners are provided on the outer wall of the main body near the threaded end.
[0011] Optionally, a fastening groove is formed circumferentially on the outer side wall of the main body near the threaded end, and the fastener is adapted to the fastening groove.
[0012] Optionally, a boss for mounting a wrench is provided at the middle of the outer side wall of the main body. A limiting step is formed around the edge of the boss. The outer edge of the wrench cooperates with the limiting step and can rotate within the limiting step.
[0013] Optionally, the internal threaded end of the main body is fitted with an internal threaded sleeve, the outer wall of the internal threaded sleeve is provided with a groove, and a retaining ring is correspondingly provided on the inner side wall of the main body, the retaining ring and the groove cooperating with each other.
[0014] Optionally, a partition ring is provided inside the main body socket end, the partition ring being located near the valve assembly, for restricting the insertion position of the non-metallic tube.
[0015] Optionally, a blocking block is provided on the end face of the boss; a blocking plate that can contact the blocking block is installed on the wrench, and when the wrench rotates, the blocking plate moves away from or closer to the blocking block to limit the rotation range of the wrench.
[0016] Optionally, the main body is made of heat-resistant polyethylene material.
[0017] Compared with the prior art, this application has at least the following beneficial effects:
[0018] A single component can connect both non-metallic and metallic pipes simultaneously, eliminating the need for additional parts. This not only effectively reduces production costs but also simplifies construction. Furthermore, with fewer connecting components, there are fewer potential leak points, significantly reducing the risk of external leakage. Attached Figure Description
[0019] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).
[0020] Figure 1 A schematic diagram of the structure of a threaded socket-compatible non-metallic valve provided in this application embodiment;
[0021] Figure 2 This is a schematic diagram of another perspective of a non-metallic valve that can be threaded and socketed, provided as an embodiment of this application;
[0022] Figure 3 A cross-sectional view of a threaded socket-compatible non-metallic valve provided in an embodiment of this application;
[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0024] Figure 5 This is a cross-sectional view of a threaded socket non-metallic valve provided for an embodiment of this application.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Main body; 2. Socket end; 3. Threaded end; 4. Wrench; 5. Separator ring; 6. Internal threaded sleeve; 7. Snap groove; 8. Snap ring; 9. Fastening groove; 10. Fastener; 11. Boss; 12. Limiting step; 13. Blocking block; 14. Blocking plate. Detailed Implementation
[0027] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] In the description of this application: unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," etc., in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (e.g., they should not be construed as an emphasis on importance or order). Expressions such as "comprising," "including," and "having" also mean "not limited to" (certain units, components, materials, steps, etc.).
[0029] The terms used in this application, such as "upper," "lower," "left," "right," and "middle," are generally used to indicate the general relative positional relationship for the purpose of intuitive understanding by referring to the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product.
[0030] A non-metallic valve with threaded socket connection, as described above. Figures 1-5 It includes a main body 1, which is integrally molded from PE-RT heat-resistant polyethylene material.
[0031] Both ends of the main body 1 are open. One end is a smooth hole, serving as a socket end 2 for connecting non-metallic pipes; the other end is a threaded end 3 for engaging with the threads of a metal pipe. A ball valve is installed inside the main body 1, positioned between the socket end 2 and the threaded end 3, to cut off or connect the passages between the left and right ends of the main body 1. Correspondingly, a wrench 4 is installed on the outer side wall of the main body 1 to control the opening and closing of the ball valve.
[0032] Specifically, a partition ring 5 is protruding from the inner part of the socket end 2 inside the main body 1, and the partition ring 5 is located near the valve assembly. The non-metallic pipe is heat-fused before being inserted into the socket end 2. After being inserted into the socket end 2, until it contacts the partition ring 5, the partition ring 5 not only restricts the insertion position of the non-metallic pipe, but also acts as a barrier between the non-metallic pipe and the ball valve, protecting both of them.
[0033] The threaded end 3 of the main body 1 is fitted with an internally threaded sleeve 6, the outer end of which is aligned with the outer end face of the threaded end 3 of the main body 1. To lock the position of the internally threaded sleeve 6 and improve its stability, several retaining grooves 7 are provided at intervals on the outer wall of the internally threaded sleeve 6. Correspondingly, retaining rings 8 are also provided on the inner sidewalls of the main body 1 corresponding to the internally threaded sleeve 6, so that after the internally threaded sleeve 6 is embedded in the main body 1, the retaining rings 8 and the retaining grooves 7 can cooperate with each other to maintain the stability of the internally threaded sleeve 6.
[0034] Because the thermal expansion and contraction rates of metal and plastic are different during installation, a fastening groove 9 is formed circumferentially on the outer wall of the main body 1 near the threaded end 3 to improve the stability of the metal pipe within the threaded end 3 and prevent it from being pulled out after release. A fastener 10 is inserted into the fastening groove 9, and the fastener 10 is adapted to the fastening groove 9. The fastener 10 ensures the stability of the metal pipe after it is connected to the main body 1.
[0035] Regarding the installation of the wrench 4, a boss 11 for installing the wrench 4 is provided in the middle of the outer side wall of the main body 1. The boss 11 has a cylindrical structure. A limiting step 12 is formed around the edge of the boss 11. The outer edge of the wrench 4 protrudes and cooperates with the limiting step 12, and can rotate within the limiting step 12. Through the cooperation with the limiting step 12, the rotation of the wrench 4 has higher stability, which can effectively prevent the wrench 4 from shaking when rotating.
[0036] In addition, two blocking blocks 13 are provided on the end face of the boss 11. A blocking plate 14 that can contact the blocking blocks 13 is installed on the wrench 4. When the wrench 4 is rotated, the blocking plate 14 moves away from or closer to the blocking blocks 13 to limit the rotation range of the wrench 4. The conditions for setting the blocking blocks 13 and the blocking plate 14 should meet the following: when the blocking plate 14 contacts one blocking block 13, the rotation position of the wrench 4 causes the valve to be in a fully open state; when the blocking plate 14 contacts the other blocking block 13, the rotation position of the wrench 4 causes the valve to be in a fully closed state.
[0037] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.
Claims
1. A non-metallic valve having a spliced socket, characterized by: Including a main body (1), both ends of the main body (1) are open; one end is a light hole, which is a socket end (2) for connecting a non-metal pipe; the other end is a threaded end (3) for threadedly cooperating with a metal pipe; The inside of the main body (1) is provided with a ball valve, which is arranged between the socket end (2) and the threaded end (3) and is used to cut off or connect the passages at both ends of the inside of the main body (1); a wrench (4) for controlling the opening and closing of the ball valve is arranged on the outer sidewall of the main body (1).
2. The non-metallic, threadably spigotable valve of claim 1, wherein: A fastener (10) is arranged on the outer sidewall of the main body (1) near the threaded end (3).
3. The non-metallic, threadably spigotable valve of claim 2, wherein: A fastening groove (9) is formed on the outer sidewall of the main body (1) near the threaded end (3) in the circumferential direction, and the fastener (10) is matched with the fastening groove (9).
4. The non-metallic, threadably spigotable valve of claim 1, wherein: A boss (11) for mounting the wrench (4) is arranged on the outer sidewall of the main body (1) at a middle position, an edge of the boss (11) is provided with a limiting step (12), and an outer edge of the wrench (4) is matched with the limiting step (12) and can rotate in the limiting step (12).
5. The non-metallic, threadably spigotable valve of claim 1, wherein: An internally threaded sleeve (6) is matched with the inside of the threaded end (3) of the main body (1), an outer wall of the internally threaded sleeve (6) is provided with a clamping groove (7), and a clamping ring (8) is correspondingly arranged on the inner sidewall of the main body (1), and the clamping ring (8) and the clamping groove (7) are matched with each other.
6. The non-metallic, threadably spigotable valve of claim 1, wherein: A partition ring (5) is protrudingly arranged in the inside of the socket end (2) of the main body (1), the partition ring (5) is located near the valve assembly and is used to limit the insertion position of the non-metal pipe.
7. The non-metallic, threadably spigotable valve of claim 4, wherein: A blocking block (13) is arranged on the end face of the boss (11), a blocking plate (14) capable of contacting the blocking block (13) is mounted on the wrench (4), and when the wrench (4) rotates, the blocking plate (14) is away from or close to the blocking block (13), so as to limit the rotation range of the wrench (4).
8. The non-metallic, threadably spigotable valve of claim 1, wherein: The main body (1) is made of heat-resistant polyethylene material.