Cast iron pipeline bell and spigot joint connecting structure
By designing a cast iron pipe socket interface connection structure, using components such as the joint wheel device, filler retraction groove, steel ring and circular retaining ring, the leakage problem caused by the displacement of the socket filling material, and the conveying efficiency and safety of the cast iron pipe are improved.
Patent Information
- Application Number
- CN202421515014.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-28
AI Technical Summary
After a long period of operation, the filling material of the socket is easily displaced due to changes in the crustal stress and water pressure, resulting in leakage, increasing the difficulty of maintenance and labor intensity, and affecting the conveying efficiency of the pipeline.
A cast iron pipe socket interface connection structure is designed, including a wheel device, pipe hoop, rubber, drain outlet, filler retraction groove, steel bar ring and circular retaining ring. Through the combination of these components, the displacement of lead is limited, and the limiting effect of the circular retaining ring and steel bar ring is prevented from being separated.
It effectively avoids leakage of sockets, reduces the difficulty and labor intensity of maintenance, improves the conveying efficiency of cast iron pipes, and ensures the efficient and safe operation of the pipes.
Smart Images
Figure CN222634112U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline equipment application, in particular to a socket-and-spigot joint connection structure of a cast iron pipeline. Background Art
[0002] At present, the materials of production and domestic water pipelines used in daily factory production are divided into steel pipes, cast iron pipes and PE pipes, etc. The connection method of cast iron pipes is socket connection, and the filling materials are rubber rings, asbestos cement and blue lead, etc. During the installation process, cast iron pipes encounter obstacles, diameter changes, bends, valves and connections with branch pipes. Steel pipes are used to make pipe fittings and sockets to connect with cast iron pipes. The filling material is blue lead. After a long period of operation, the pipe fittings are affected by the changes in crustal stress and the water pressure in the pipe. The filling material of the socket is very easy to move, causing leakage at the socket. The labor intensity is high and it is time-consuming and labor-intensive for operators to knock on the blue lead material during the maintenance process, which has a great impact on the efficient and safe operation of the pipeline. Utility Model Content
[0003] The utility model provides a cast iron pipe socket connection structure to solve the problems existing in the above background.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A cast iron pipe socket connection structure comprises a joint wheel device, a pipe clamp is provided on the inner side of the joint wheel device, a third pipe is provided in the pipe clamp extending from the joint wheel device, the outer wall of the third pipe located in the joint wheel device is covered with rubber, a drain port is also provided at the bottom of the joint wheel device, a second pipe is connected to the side of the joint wheel device close to the third pipe, a packing retreat groove is provided on the inner side of the second pipe, and a circular retaining ring is also provided closely to the third pipe on the side of the second pipe.
[0006] Furthermore, a side of the joint wheel device close to the third pipeline is connected to a first pipeline, and the second pipeline is connected to a side of the first pipeline.
[0007] Furthermore, the filler retreat prevention groove is filled with blue lead, the side of the blue lead away from the circular retaining ring is provided with oil hemp, and the side of the oil hemp is also provided with a steel ring.
[0008] The utility model has the following beneficial effects:
[0009] The utility model provides a cast iron pipe socket connection structure, which is mainly composed of a segment wheel device, a pipe, a filler withdrawal groove, a steel ring and a circular retaining ring. By making a filler withdrawal groove at the socket and matching the limiting effect of the circular retaining ring and the steel ring, the displacement and leakage of the blue lead at the connection of the cast iron pipe can be effectively avoided, which greatly ensures the convenience and safety of the installation and maintenance of the cast iron pipe, thereby improving the overall transportation efficiency of the cast iron pipe, and solves the problem that after the cast iron pipe has been in operation for a long time, the filling material of the socket is usually easily displaced due to the influence of stress and water pressure on the pipe, resulting in leakage at the socket, and the maintenance process of the operating personnel is time-consuming and labor-intensive, which ultimately affects the overall transportation efficiency of the cast iron pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0011] The meanings of the reference numerals are as follows:
[0012] 1. Pulley device; 2. Pipe clamp; 3. Rubber; 4. Drainage port; 5. Leakage point; 6. First pipeline; 7. Second pipeline; 8. Filler withdrawal groove; 9. Blue lead; 10. Oil hemp; 11. Steel bar ring; 12. Circular retaining ring; 13. Third pipeline. DETAILED DESCRIPTION
[0013] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0014] like Figure 1 As shown, a cast iron pipe socket connection structure includes a wheel joint device 1, a pipe clamp 2 is provided on the inner side of the wheel joint device 1, a third pipe 13 is provided in the pipe clamp 2 and extends out of the wheel joint device 1, the outer wall of the third pipe 13 located in the wheel joint device 1 is sleeved with a rubber 3, a drain port 4 is also provided at the bottom of the wheel joint device 1, a second pipe 7 is connected to the side of the wheel joint device 1 close to the third pipe 13, a packing retreat groove 8 is provided on the inner side of the second pipe 7, and a circular retaining ring 12 is also provided closely to the third pipe 13 on the side of the second pipe 7.
[0015] The first pipeline 6 is connected to one side of the joint wheel device 1 close to the third pipeline 13 , and the second pipeline 7 is connected to the side of the first pipeline 6 .
[0016] The filler retreat prevention groove 8 is filled with blue lead 9, and the side of the blue lead 9 away from the circular retaining ring 12 is provided with oil hemp 10, and the side of the oil hemp 10 is also provided with a steel ring 11.
[0017] When the utility model is used in specific applications, the shape of the socket of the cast iron pipe is optimized, and a blue lead filler retreat prevention groove 8 is processed and manufactured. After the blue lead 9 is filled and twisted, the interface and the blue lead in the filler retreat prevention groove 8 become one, and when the internal and external conditions of the interface change, the blue lead 9 is effectively prevented from falling off; after the blue lead 9 is connected to the cast iron pipe and leakage occurs at the socket, the blue lead 9 is twisted again, and in order to prevent the blue lead from falling off again and causing pipeline leakage, a circular retaining ring 12 is assembled on the outer edge of the blue lead 9 to be connected to the socket of the pipe fitting as a whole, which further prevents the blue lead 9 from moving outward. Therefore, the structure has good practicality.
Claims
1. A cast iron pipe socket connection structure, comprising a joint wheel device (1), a pipe hoop (2) is provided on the inner side of the joint wheel device (1), a third pipe (13) is provided in the pipe hoop (2) extending out of the joint wheel device (1), the outer wall of the third pipe (13) located in the joint wheel device (1) is covered with a rubber sheet (3), and a drain port (4) is also provided at the bottom of the joint wheel device (1), wherein: The second pipe (7) is connected to the side of the wheel assembly (1) close to the third pipe (13), a packing retreat groove (8) is provided inside the second pipe (7), and a circular retaining ring (12) is also provided closely to the third pipe (13) on the side of the second pipe (7).
2. A cast iron pipe socket connection structure according to claim 1, characterized in that: The first pipeline (6) is connected to a side of the joint wheel device (1) close to the third pipeline (13), and the second pipeline (7) is connected to a side of the first pipeline (6).
3. A cast iron pipe socket connection structure according to claim 1, characterized in that: The filler retreat prevention groove (8) is filled with blue lead (9), and the side of the blue lead (9) away from the circular retaining ring (12) is provided with oil hemp (10), and the side of the oil hemp (10) is also provided with a steel ring (11).