JDG pipe connecting structure
By introducing a separator ring, a rubber sealing ring, and a multi-seal design at the JDG pipe connection, the problem of leakage at the JDG pipe joint was solved, achieving an efficient and stable pipe connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINAN FUYAO IND CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-24
AI Technical Summary
The existing JDG pipe joints are prone to concrete grout leakage after connection, resulting in low construction efficiency.
The JDG pipe adopts a combination structure consisting of a separator ring, a rubber sealing ring, a locking element, a sealing tube, and an expansion tube. Through the design of multiple sealing rings and threaded holes, multiple sealing connections are achieved.
It improves the sealing performance of JDG pipe connections, ensuring no leakage during construction and enhancing construction efficiency and connection stability.
Smart Images

Figure CN224164589U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a JDG pipe connection structure, belonging to the field of building construction technology. Background Technology
[0002] JDG conduit is a replacement product for traditional electrical conduits such as PVC and SC pipes, representing a breakthrough innovation in the field of building electrical systems by adopting new materials and technologies. JDG conduit uses galvanized steel pipes and thin-walled steel pipes for grounding, overcoming the drawbacks of complex construction and high construction losses associated with ordinary metal conduits, while also solving problems such as poor fire resistance and difficult grounding associated with PVC pipes.
[0003] Currently, JDG pipe fittings on the market have a simple structure. After the JDG pipe fitting is connected to the JDG conduit, concrete slurry will leak from the gap between the JDG pipe fitting body and the JDG conduit. Operators must use tape to wrap the JDG pipe fitting body and the JDG conduit to prevent leakage, which greatly reduces construction efficiency. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a JDG pipe connection structure.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0006] A JDG tube connection structure includes a JDG tube 1, a JDG tube 2, and a connecting tube. The ends of JDG tube 1 and JDG tube 2 are inserted into the connecting tube. A dividing ring is fixedly provided in the middle of the connecting tube. Rubber sealing rings are provided on the outer surfaces of both ends of the dividing ring. Matching locking elements are provided on the insertion ends of JDG tube 1 and JDG tube 2 and their connecting tube. A sealing tube is fitted on the outer surface of JDG tube 1, and an expansion tube is fixedly provided at the other end of the sealing tube. A secondary sealing tube is fitted on the outer surface of JDG tube 2, and a secondary expansion tube is fixedly provided at the other end of the secondary sealing tube. Sealing ring 1 is attached to the inner wall of both the sealing tube and the expansion tube. Sealing ring 2 is attached to the inner wall of both the secondary expansion tube and the secondary sealing tube.
[0007] Furthermore, the locking components include corresponding positioning holes on JDG pipe one, JDG pipe two, and the connecting pipe, with positioning rods inserted into the corresponding positioning holes.
[0008] Furthermore, an inner groove is provided at the top of the positioning rod, and a pull ring is fixedly installed in the inner groove.
[0009] Furthermore, a sealing ring three is provided on the end face of the expansion tube facing the secondary expansion tube, and a sealing groove corresponding to the sealing ring three is provided on the end face of the secondary expansion tube facing the expansion tube.
[0010] Furthermore, the sealing tube, the secondary sealing tube, JDG tube one, and JDG tube two are provided with corresponding threaded holes.
[0011] Furthermore, the expansion tube, the secondary expansion tube, and the connecting tube are provided with corresponding threaded holes.
[0012] Furthermore, a support base is fixed to the outer surface of the expansion tube with screws, and a support component corresponding to the secondary expansion tube is fixed to the top of the support base. The support component is fixed to the outer surface of the secondary expansion tube with screws.
[0013] The beneficial effects of this utility model are:
[0014] First, insert the ends of JDG tube 1 and JDG tube 2 into the connecting tube, with the ends of JDG tube 1 and JDG tube 2 abutting against the separating ring at intervals. Two rubber sealing rings are placed inside the connecting tube beforehand. As JDG tube 1 and JDG tube 2 are inserted, the rubber sealing rings abut against the two sides of the separating ring. Therefore, JDG tube 1 and JDG tube 2 abut against the separating ring through the rubber sealing rings, providing a first layer of sealing after connection. After this first layer of sealing, personnel manually use the locking device to connect and fix JDG tube 1, JDG tube 2, and the connecting tube.
[0015] Before the first sealing operation, the sealing tube is placed on the outer surface of JDG tube one, and the secondary sealing tube is placed on the outer surface of JDG tube two. After the first sealing connection is completed, the sealing tube and the secondary sealing tube are manually moved so that the expansion tube on the sealing tube is placed on the outer surface of the connecting tube, and the secondary expansion tube on the secondary sealing tube is also placed on the outer surface of the connecting tube. The inner walls of the sealing tube and the expansion tube are both fitted with sealing ring one, and the inner walls of the secondary expansion tube and the secondary sealing tube are both fitted with sealing ring two. Finally, sealing ring one and sealing ring two seal and wrap JDG tube one, JDG tube two and the connecting tube, achieving a double sealing connection, ensuring the multiple sealing performance of the sealing connection, and further enhancing the sealing performance of the joint after the connection. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This invention provides a front view of a JDG pipe connection structure.
[0018] Figure 2 This invention provides a schematic diagram of the internal structure of a JDG pipe connection according to the present invention.
[0019] Figure 3 This invention illustrates a schematic diagram of the secondary sealing tube and secondary expansion tube of a JDG pipe connection structure.
[0020] Figure 4 A schematic diagram of the positioning rod of a JDG pipe connection structure according to this utility model is shown.
[0021] In the diagram: 1. JDG pipe one; 2. JDG pipe two; 3. Connecting pipe; 4. Separating ring; 5. Rubber sealing ring; 6. Sealing pipe; 7. Expansion pipe; 8. Sealing ring one; 9. Secondary sealing pipe; 10. Secondary expansion pipe; 11. Sealing ring two; 12. Positioning hole; 13. Positioning rod; 14. Inner groove; 15. Pull ring; 16. Sealing ring three; 17. Sealing groove; 18. Threaded hole one; 19. Threaded hole two; 20. Support base; 21. Support component. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-3 This utility model provides a technical solution: a JDG tube connection structure, including a JDG tube 1, a JDG tube 2, and a connecting tube 3. The ends of JDG tube 1 and JDG tube 2 are inserted into the connecting tube 3. A dividing ring 4 is fixedly provided in the middle of the connecting tube 3. Rubber sealing rings 5 are provided on the outer surfaces of both ends of the dividing ring 4. Matching locking elements are provided on the insertion ends of JDG tube 1 and JDG tube 2 and their connecting tube 3. A sealing tube 6 is sleeved on the outer surface of JDG tube 1. An expansion tube 7 is fixedly provided at the other end of the sealing tube 6. A secondary sealing tube 9 is sleeved on the outer surface of JDG tube 2. A secondary expansion tube 10 is fixedly provided at the other end of the secondary sealing tube 9. Sealing ring 8 is attached to the inner wall of both the sealing tube 6 and the expansion tube 7. Sealing ring 11 is attached to the inner wall of both the secondary expansion tube 10 and the secondary sealing tube 9.
[0024] See Figure 1 , Figure 2 and Figure 4The locking mechanism includes corresponding positioning holes 12 on JDG tube 1, JDG tube 2, and connecting tube 3. A positioning rod 13 is inserted into the corresponding positioning hole 12. The top of the positioning rod 13 has an inner groove 14, and a pull ring 15 is fixed in the inner groove 14. After the ends of JDG tube 1 and JDG tube 2 are inserted into the connecting tube 3, the positioning rod 13 is inserted into the positioning hole 12, and the three JDG tubes 1, JDG tube 2, and connecting tube 3 are fixed together. The pull ring 15 is provided to facilitate the pulling out with a hook. The hook can be configured separately. If disassembly is required later, the connection between JDG tube 1, JDG tube 2, and connecting tube 3 can be disassembled in this way.
[0025] See Figure 1 and Figure 3 A sealing ring 3 16 is provided on the end face of the expansion tube 7 facing the secondary expansion tube 10, and a sealing groove 17 corresponding to the sealing ring 3 16 is provided on the end face of the secondary expansion tube 10 facing the expansion tube 7. The expansion tube 7 and the secondary expansion tube 10 will eventually be connected to each other. At this time, the sealing ring 3 16 will be inserted into the sealing groove 17 to achieve triple sealing connection and further improve the sealing performance of the connection.
[0026] See Figure 1-3 The sealing tube 6, secondary sealing tube 9, JDG tube 1, and JDG tube 2 are provided with corresponding threaded holes 18, and the expansion tube 7, secondary expansion tube 10, and connecting tube 3 are provided with corresponding threaded holes 19. Finally, during installation, the corresponding threaded holes 18 on the sealing tube 6, secondary sealing tube 9, JDG tube 1, and JDG tube 2 are used to insert screws, and the corresponding threaded holes 19 on the expansion tube 7, secondary expansion tube 10, and connecting tube 3 are used to insert screws to complete the final fixation.
[0027] See Figure 1 The outer surface of the expansion tube 7 is fixed with screws to a support base 20. The top of the support base 20 is also fixed with a support member 21 corresponding to the secondary expansion tube 10. The support member 21 is fixed to the outer surface of the secondary expansion tube 10 with screws. The support base 20 actually has two sets of support members 21, which are fixed with the secondary expansion tube 10 and the expansion tube 7 with screws. The support base 20 supports the pipe joint, ensuring the stability of the pipe joint and preventing easy breakage.
[0028] In practice, the ends of JDG tube 1 and JDG tube 2 are inserted into the connecting pipe 3, with the ends of JDG tube 1 and JDG tube 2 abutting against the separating ring 4 at intervals. Two rubber sealing rings 5 are placed inside the connecting pipe 3 beforehand. As JDG tube 1 and JDG tube 2 are inserted, the rubber sealing rings 5 abut against the two sides of the separating ring 4. Therefore, JDG tube 1 and JDG tube 2 abut against the separating ring 4 through the rubber sealing rings 5, achieving a first-stage seal after connection. After the first-stage seal is achieved, personnel manually use locking devices to connect and secure JDG tube 1, JDG tube 2, and the connecting pipe 3. Before the first-stage seal, the sealing tube 6 is fitted over JDG tube 1. On the outer surface of the first sealing tube 1, the secondary sealing tube 9 is pre-fitted onto the outer surface of the second JDG tube 2. After completing the first sealing and fixing, the sealing tube 6 and the secondary sealing tube 9 are manually moved so that the expansion tube 7 on the sealing tube 6 is fitted onto the outer surface of the connecting tube 3, and the secondary expansion tube 10 on the secondary sealing tube 9 is also fitted onto the outer surface of the connecting tube 3. The inner walls of the sealing tube 6 and the expansion tube 7 are both fitted with sealing ring 1 8, and the inner walls of the secondary expansion tube 10 and the secondary sealing tube 9 are both fitted with sealing ring 2 11. Finally, sealing ring 1 8 and sealing ring 2 11 seal and wrap the first JDG tube 1, the second JDG tube 2, and the connecting tube 3, achieving a double sealing and ensuring the multiple sealing performance of the sealing connection, further enhancing the sealing performance of the joint after the connection.
[0029] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A JDG pipe connection structure, characterized in that: The device includes JDG tube 1 (1), JDG tube 2 (2) and connecting tube (3). The ends of JDG tube 1 (1) and JDG tube 2 (2) are inserted into the connecting tube (3). A dividing ring (4) is fixed in the middle of the connecting tube (3). Rubber sealing rings (5) are provided on the outer surfaces of both ends of the dividing ring (4). Matching locking parts are provided on the insertion ends of JDG tube 1 (1) and JDG tube 2 (2) and their connecting tube (3). A sealing tube (6) is fitted on the outer surface of JDG tube 1 (1). An expansion tube (7) is fixed at the other end of the sealing tube (6). A secondary sealing tube (9) is fitted on the outer surface of JDG tube 2 (2). A secondary expansion tube (10) is fixed at the other end of the secondary sealing tube (9). A sealing ring 1 (8) is pasted on the inner wall of the sealing tube (6) and the expansion tube (7). A sealing ring 2 (11) is pasted on the inner wall of the secondary expansion tube (10) and the secondary sealing tube (9).
2. The JDG pipe connection structure according to claim 1, characterized in that: The locking component includes corresponding positioning holes (12) on JDG pipe one (1), JDG pipe two (2), and connecting pipe (3), and a positioning rod (13) is inserted into the corresponding positioning hole (12).
3. The JDG pipe connection structure according to claim 2, characterized in that: The top of the positioning rod (13) is provided with an inner groove (14), and a pull ring (15) is fixedly provided in the inner groove (14).
4. The JDG pipe connection structure according to claim 3, characterized in that: A sealing ring three (16) is provided on the end face of the expansion tube (7) facing the secondary expansion tube (10), and a sealing groove (17) corresponding to the sealing ring three (16) is provided on the end face of the secondary expansion tube (10) facing the expansion tube (7).
5. The JDG pipe connection structure according to claim 4, characterized in that: The sealing tube (6), the secondary sealing tube (9), JDG tube one (1) and JDG tube two (2) are provided with corresponding threaded holes one (18).
6. The JDG pipe connection structure according to claim 5, characterized in that: The expansion tube (7), the secondary expansion tube (10) and the connecting tube (3) are provided with corresponding threaded holes (19).
7. A JDG pipe connection structure according to claim 6, characterized in that: The expansion tube (7) is fixed with a support base (20) by screws on its outer surface. The top of the support base (20) is also fixed with a support member (21) corresponding to the secondary expansion tube (10). The support member (21) is fixed with screws on the outer surface of the secondary expansion tube (10).