Double-clamping-pressing reducing elbow pipe body structure
By designing the connection structure between the elbow body and the rotating ring, the problem of requiring destructive cutting for replacing existing reducing elbows has been solved, achieving stable connection and simplified replacement, thus improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2026-03-06
AI Technical Summary
The existing double-press-fit reducing elbows require destructive cutting during replacement, which is cumbersome and reduces work efficiency.
A structure including an elbow pipe body, a rotating ring, a connecting ring, and a fixing mechanism was designed. Through the cooperation of a connecting rod, a plug, an adjusting handle, and a spring, stable connection and separation of the pipes are achieved, simplifying the replacement process.
It improves the connection stability and sealing of reducing elbows, simplifies the replacement process, and increases work efficiency.
Smart Images

Figure CN223975722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elbow pipe technology, specifically a double-press reducing elbow pipe structure. Background Technology
[0002] A reducing elbow is a key pipe fitting used in piping systems. Its core function is to simultaneously change the flow direction of fluid and connect pipes of different diameters. It is designed with a specific bending angle, and the interfaces at both ends have different nominal diameters, allowing the fluid to transition between pipe diameters while turning.
[0003] An investigation revealed that a Chinese utility model patent (publication number: CN211738366U) discloses a double-clamp 90-degree reducing elbow with clamp fittings, comprising a riser, a bend, and a horizontal pipe. This patent features an antibacterial layer on the inner wall of the riser, bend, horizontal pipe, tapered pipe, and wide-diameter horizontal pipe, as well as on the outer surface of the bedding layer, effectively reducing bacterial growth during use. Furthermore, both ends of the reducing elbow utilize a double-clamp connection method, which effectively enhances the stability and sealing of the pipe connection. However, the double-clamp connection is a permanent mechanical crimp, requiring destructive cutting of the reducing elbow or pipe during subsequent replacement, making the operation cumbersome and reducing work efficiency.
[0004] Therefore, this utility model provides a double-clamping reducing elbow pipe body structure to solve the above problems. Utility Model Content
[0005] This invention provides a double-press reducing elbow pipe body structure, which aims to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a double-clamping reducing elbow pipe body structure, comprising an elbow pipe body, a pipe provided at one end of the elbow pipe body, a rotating ring rotatably connected to the side surface of the elbow pipe body, a connecting ring fixedly connected to one side of the rotating ring, the pipe being inserted into the inside of the connecting ring, and a fixing mechanism provided on the side surface of the connecting ring.
[0007] The fixing mechanism includes a fixing shell, one side of which is fixedly connected to the side surface of the connecting ring. A connecting rod is slidably connected inside the fixing shell. One end of the connecting rod is fixedly connected to an insert block, and the other end of the connecting rod extends to the outside of the fixing shell and is rotatably connected to an adjusting handle.
[0008] As a preferred technical solution of this application, the side surface of the pipe is fitted with the inner wall of the connecting ring, the side surface of the pipe is provided with a socket adapted to the plug, the side surface of the connecting ring is provided with a through hole, the fixing shell is coaxially arranged with the through hole, and the end of the plug away from the connecting rod extends into the interior of the connecting ring through the through hole and is inserted into the interior of the socket.
[0009] As a preferred technical solution of this application, a spring is sleeved on the side surface of the connecting rod, one end of the spring is fixedly connected to the end of the insert block near the connecting rod, and the other end of the spring is fixedly connected to the inner wall of one side of the fixed shell.
[0010] As a preferred technical solution of this application, a sealing gasket is fixedly connected to one end of the elbow pipe body near the pipe, and the side of the sealing gasket away from the elbow pipe body is in contact with one end of the pipe.
[0011] As a preferred technical solution of this application, a limiting ring is fixedly connected to the side surface of the elbow pipe body, an annular groove is opened on the inner wall of the rotating ring, the limiting ring is inserted into the inside of the annular groove, a guide groove is opened on the side surface of the connecting ring, the guide groove is connected to the inner cavity of the connecting ring, and a guide block is fixedly connected to the side surface of the pipe, the guide block is inserted into the inside of the guide groove.
[0012] As a preferred technical solution of this application, a rotating shaft is fixedly connected inside the limiting ring, and a roller is rotatably connected to the side surface of the rotating shaft. The side surface of the roller is in contact with the inner wall of the annular groove.
[0013] This utility model has a simple structure and is easy to use. With the setting of connecting rod, plug, adjusting handle and spring, after the pipe is inserted into the inside of the connecting ring, the worker only needs to turn the adjusting handle to make the elbow pipe body and the pipe stably connected together, or to release the stable connection between the elbow pipe body and the pipe. This makes it easier for workers to replace the elbow pipe body or the pipe, thus improving work efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a double-press reducing elbow pipe body structure;
[0015] Figure 2 This is a schematic diagram of the installation of the rotating ring in a double-clamp reducing elbow pipe structure.
[0016] Figure 3 This is a cross-sectional view of the main body of the elbow in a double-press reducing elbow structure.
[0017] Figure 4 for Figure 2 Enlarged view of point A in the image;
[0018] Figure 5 for Figure 3Enlarged view of point B in the image.
[0019] In the picture:
[0020] 1. Elbow body; 2. Pipe; 3. Rotating ring; 4. Connecting ring; 5. Sealing gasket; 6. Insertion hole; 7. Fixing shell; 8. Connecting rod; 9. Insertion block; 10. Adjusting handle; 11. Spring; 12. Through hole; 13. Limiting ring; 14. Roller; 15. Guide block; 16. Guide groove. Detailed Implementation
[0021] 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.
[0022] This utility model provides a double-press reducing elbow pipe body structure, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, it includes a elbow pipe body 1, a pipe 2 is provided at one end of the elbow pipe body 1, a rotating ring 3 is rotatably connected to the side surface of the elbow pipe body 1, a connecting ring 4 is fixedly connected to one side of the rotating ring 3, the pipe 2 is inserted into the inside of the connecting ring 4, and a fixing mechanism is provided on the side surface of the connecting ring 4.
[0023] The fixing mechanism includes a fixing shell 7, one side of which is fixedly connected to the side surface of the connecting ring 4. A connecting rod 8 is slidably connected inside the fixing shell 7. One end of the connecting rod 8 is fixedly connected to an insert block 9, and the other end of the connecting rod 8 extends to the outside of the fixing shell 7 and is rotatably connected to an adjusting handle 10.
[0024] The side surface of the pipe 2 is in contact with the inner wall of the connecting ring 4. The side surface of the pipe 2 is provided with a socket 6 that is compatible with the plug 9. The side surface of the connecting ring 4 is provided with a through hole 12. The fixing shell 7 is coaxially arranged with the through hole 12. The end of the plug 9 away from the connecting rod 8 extends into the interior of the connecting ring 4 through the through hole 12 and is inserted into the interior of the socket 6.
[0025] A spring 11 is fitted on the side surface of the connecting rod 8. One end of the spring 11 is fixedly connected to the end of the insert block 9 near the connecting rod 8, and the other end of the spring 11 is fixedly connected to the inner wall of one side of the fixed shell 7.
[0026] The adjusting handle 10 can rotate 90 degrees on the fixed shell 7. When the adjusting handle 10 rotates, it can pull the insert 9 through the connecting rod 8, so that the insert 9 has two states: one is extended into the inside of the connecting ring 4, and the other is retracted into the inside of the through hole 12. The spring 11 can always apply force to the adjusting handle 10 through the insert 9 and the fixed shell 7, which effectively improves the stability of the adjusting handle 10. When connecting the elbow pipe body 1 and the pipe 2 together, the pipe 2 needs to be inserted into the inside of the connecting ring 4. After the pipe 2 enters the inside of the connecting ring 4, the insertion hole 6 needs to be aligned with the insert 9. Then the adjusting handle 10 can be turned so that the connecting rod 8 drives the insert 9 to be inserted into the inside of the insertion hole 6, thereby restricting the pipe 2, so that the elbow pipe body 1 and the pipe 2 can be stably connected together. When replacing the elbow pipe body 1 or the pipe 2, the adjusting handle 10 needs to be rotated in the opposite direction so that the connecting rod 8 drives the insert 9 to move out of the inside of the insertion hole 6, thereby releasing the stable connection between the elbow pipe body 1 and the pipe 2, and then the two can be separated.
[0027] Furthermore, in order to improve the sealing performance after the elbow pipe body 1 is connected to the pipe 2, such as... Figure 1 , Figure 2 and Figure 3 As shown, a sealing gasket 5 is fixedly connected to one end of the elbow pipe body 1 near the pipe 2, and the side of the sealing gasket 5 away from the elbow pipe body 1 is in contact with one end of the pipe 2.
[0028] A limiting ring 13 is fixedly connected to the side surface of the elbow pipe body 1. An annular groove is opened on the inner wall of the rotating ring 3. The limiting ring 13 is inserted into the inside of the annular groove. A guide groove 16 is opened on the side surface of the connecting ring 4. The guide groove 16 is connected to the inner cavity of the connecting ring 4. A guide block 15 is fixedly connected to the side surface of the pipe 2. The guide block 15 is inserted into the inside of the guide groove 16.
[0029] When pipe 2 is inserted into the connecting ring 4, guide block 15 needs to be aligned with guide groove 16. During the process of pipe 2 entering the connecting ring 4, guide block 15 will also enter the guide groove 16. Since the middle part of guide groove 16 is inclined, the operator needs to rotate rotating ring 3 to allow pipe 2 to fully enter the connecting ring 4. After pipe 2 is fully entered into the connecting ring 4, it will fit tightly with sealing gasket 5, thereby effectively improving the sealing performance of elbow pipe body 1 and pipe 2 after connection. In addition, when guide block 15 moves to the end of guide groove 16, insertion hole 6 is just aligned with insertion block 9, so as to facilitate the operator to fix pipe 2.
[0030] Furthermore, in order to improve the smoothness of rotation of the rotating ring 3, such as... Figure 1 , Figure 2 and Figure 3As shown, a rotating shaft is fixedly connected inside the limiting ring 13, and a roller 14 is rotatably connected to the side surface of the rotating shaft. The side surface of the roller 14 is in contact with the inner wall of the annular groove.
[0031] The setting of the limiting ring 13 reduces the possibility of the rotating ring 3 detaching from the elbow pipe body 1. When the rotating ring 3 rotates, the roller 14 will rotate on the shaft due to the influence of friction, thereby assisting the rotating ring 3 to rotate. The setting of the roller 14 effectively reduces the friction when the rotating ring 3 rotates and improves the smoothness of the rotating ring 3.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A double-pressed reducing elbow pipe body structure comprising an elbow pipe main body (1), characterized in that: One end of the elbow pipe body (1) is provided with a pipeline (2), the side surface of the elbow pipe body (1) is rotatably connected with a rotating ring (3), one side of the rotating ring (3) is fixedly connected with a connecting ring (4), the pipeline (2) is inserted into the inside of the connecting ring (4), and the side surface of the connecting ring (4) is provided with a fixing mechanism. The fixing mechanism comprises a fixing shell (7), one side of the fixing shell (7) is fixedly connected with the side surface of the connecting ring (4), the inside of the fixing shell (7) is slidably connected with a connecting rod (8), one end of the connecting rod (8) is fixedly connected with a plug (9), the other end of the connecting rod (8) extends to the outside of the fixing shell (7) and is rotatably connected with an adjusting handle (10).
2. A double-reducing eccentric bend pipe body structure according to claim 1, characterized in that: The side surface of the pipeline (2) is attached to the inner wall of the connecting ring (4), the side surface of the pipeline (2) is provided with a plug hole (6) matched with the plug (9), the side surface of the connecting ring (4) is provided with a through hole (12), the fixing shell (7) is coaxially arranged with the through hole (12), one end of the plug (9) away from the connecting rod (8) extends to the inside of the connecting ring (4) through the through hole (12) and is inserted into the inside of the plug hole (6).
3. The double-reducing eccentric bend pipe body structure according to claim 1, characterized in that: The side surface of the connecting rod (8) is sleeved with a spring (11), one end of the spring (11) is fixedly connected to the end of the plug (9) close to the connecting rod (8), and the other end of the spring (11) is fixedly connected to the inner wall of one side of the fixing shell (7).
4. The double-reducing eccentric bend pipe body structure according to claim 1, wherein: One end of the elbow pipe body (1) close to the pipeline (2) is fixedly connected with a sealing gasket (5), and one side of the sealing gasket (5) away from the elbow pipe body (1) is attached to one end of the pipeline (2).
5. The double-reducing eccentric bend pipe body structure according to claim 1, characterized in that: The side surface of the elbow pipe body (1) is fixedly connected with a limiting ring (13), the inner wall of the rotating ring (3) is provided with an annular groove, the limiting ring (13) is inserted into the inside of the annular groove, the side surface of the connecting ring (4) is provided with a guide groove (16), the guide groove (16) is communicated with the inner cavity of the connecting ring (4), and the side surface of the pipeline (2) is fixedly connected with a guide block (15).
6. A double-reducing eccentric bend pipe body structure according to claim 5, wherein: The inside of the limiting ring (13) is fixedly connected with a rotating shaft, the side surface of the rotating shaft is rotatably connected with a roller (14), and the side surface of the roller (14) is in contact with the inner wall of the annular groove.
Citation Information
Patent Citations
Double-clamping 90-degree reducing elbow pipe with pipe clamping piece
CN211738366U