Socket and spigot type connecting pipe
By using a socket-type connecting pipe design, the problem of poor welding quality in galvanized steel pipe connections is solved through multi-layer welds and positioning structures, achieving improved sealing and aesthetics, and extending the service life of the pipes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-03
AI Technical Summary
Existing galvanized steel pipe connection methods suffer from poor welding quality, insufficient sealing, low aesthetic appeal, and susceptibility to deformation, leading to a shortened service life.
The socket-type connecting pipe is adopted. By embedding the annular groove at the end of the pipe body and welding the first annular weld, combined with the embedding of the positioning protrusion and the positioning groove, a multi-layer weld is formed to improve the connection accuracy and stability and avoid beveling.
It improves the welding stability and sealing of the pipes, extends their service life, enhances their aesthetics, and avoids welding deformation and leakage.
Smart Images
Figure CN223965056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe manufacturing technology, and in particular to a socket-type connecting pipe. Background Technology
[0002] With the development of international urbanization, the demand for water supply and gas supply pipes is constantly increasing. Galvanized steel pipes have been widely promoted and applied due to their excellent properties of high pressure resistance, corrosion resistance, and structural stability. Currently, the most common connection method for galvanized steel pipes is butt welding. This involves first beveling the ends of two pipes to form a bevel at a certain angle, which provides space for welding. Then, the two pipes are joined together and welded at the joint. However, beveling reduces the thickness of the pipe material, resulting in a concave and incomplete weld, which reduces aesthetics. Moreover, poor welding quality can easily cause deformation, reduce sealing performance, and lead to leakage at the weld, thus shortening the service life of the pipe. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a socket-type connecting pipe that improves welding stability, sealing performance, aesthetics and extends the service life of the pipe.
[0004] The technical solution adopted in this utility model is as follows:
[0005] A socket-type connecting pipe includes a pipe body and a threaded pipe fitting. The end of the threaded pipe fitting is provided with an annular groove. The end of the pipe body is embedded in the annular groove and a first annular weld is welded to its outer side. The first annular weld is welded to the end of the threaded pipe fitting. A positioning protrusion is provided in the annular groove and a positioning groove is provided at the end of the pipe body. The positioning protrusion is embedded in the positioning groove.
[0006] Preferably, a second annular weld is welded to the outside of the first annular weld, and the outside of the pipe body and the end of the threaded pipe fitting are both welded to the second annular weld.
[0007] Preferably, the threaded pipe fitting includes an externally threaded pipe section, a first straight pipe section, a bend pipe section, and a second straight pipe section connected in sequence, with an annular groove provided at the end of the second straight pipe section away from the bend pipe section.
[0008] Preferably, an external hexagonal nut is fixedly connected to the outer side of the first straight tube.
[0009] Preferably, the outer side of the second straight section away from the bend section is provided with a rounded corner.
[0010] Preferably, the outer side of the end of the tube is provided with a first insertion chamfer.
[0011] Preferably, the top two sides of the positioning protrusion are provided with a second insertion chamfer.
[0012] The beneficial effects of this utility model are as follows:
[0013] This socket-type connecting pipe improves the connection accuracy between the pipe body and the threaded pipe fitting by embedding the positioning protrusion into the positioning groove. By embedding the end of the pipe body into the annular groove and welding the first annular weld on the outside of the pipe body and the end of the threaded pipe fitting, the welding stability is improved, the sealing performance is enhanced, and the service life of the pipe is extended. Moreover, no beveling is required, making the first annular weld fuller and improving the aesthetics. Attached Figure Description
[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention.
[0015] Figure 2 This is a schematic diagram of the tube structure.
[0016] Figure 3 This is a structural schematic diagram of a threaded pipe fitting.
[0017] Figure 4 This is a cross-sectional view of the structure of this utility model.
[0018] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.
[0019] In the diagram: 1. Pipe body; 2. Threaded pipe fitting; 201. Externally threaded pipe section; 202. First straight pipe section; 203. Bend section; 204. Second straight pipe section; 205. External hexagonal nut section; 206. Rounded corner; 3. Annular groove; 4. First Annular weld; 5. Positioning protrusion; 6. Positioning groove; 7. Second Annular weld; 8. First insertion chamfer; 9. Second insertion chamfer. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1-5 This utility model provides a technical solution: a socket-type connecting pipe, including a pipe body 1 and a threaded pipe fitting 2. The end of the threaded pipe fitting 2 is provided with an annular groove 3. The end of the pipe body 1 is embedded in the annular groove 3, and a first annular weld 4 is welded to its outer side. The first annular weld 4 is welded to the end of the threaded pipe fitting 2. A positioning protrusion 5 is provided in the annular groove 3, and a positioning groove 6 is provided at the end of the pipe body 1. The positioning protrusion 5 is embedded in the positioning groove 6.
[0022] By embedding the positioning protrusion 5 into the positioning groove 6, the connection accuracy between the pipe body 1 and the threaded pipe fitting 2 is improved. By embedding the end of the pipe body 1 into the annular groove 3, and welding the first annular weld 4 on the outside of the pipe body 1 and the end of the threaded pipe fitting 2, the welding stability is improved, the sealing performance is improved, and the service life of the pipe is extended. Moreover, there is no need to perform beveling, making the first annular weld 4 fuller and improving the aesthetics.
[0023] To further enhance the fullness and aesthetics of the weld, and to improve the stability of the welded structure, in this embodiment, preferably, a second annular weld 7 is welded to the outside of the first annular weld 4. The outside of the pipe body 1 and the end of the threaded pipe fitting 2 are both welded to the second annular weld 7. The purpose is to form a second layer of weld by welding the first annular weld 4 to form a first layer of weld, and then welding the second annular weld 7 to the outside of the first annular weld 4 to form a second layer of weld, thereby further enhancing the fullness and aesthetics of the weld and improving the stability of the welded structure.
[0024] To facilitate the adjustment of fluid flow direction and adapt to pipeline layout requirements, in this embodiment, preferably, the threaded pipe fitting 2 includes an externally threaded pipe section 201, a first straight pipe section 202, a bend section 203, and a second straight pipe section 204 connected in sequence. The annular groove 3 is provided at the end of the second straight pipe section 204 away from the bend section 203. The purpose of the bend section 203 is to adjust the fluid flow direction and adapt to pipeline layout requirements. By embedding the positioning protrusion 5 into the positioning groove 6, positioning is formed, so that the bend section 203 can change direction more accurately.
[0025] In order to facilitate the rotation of the externally threaded pipe section 201 and to connect it with the internal threads of other pipes, in this embodiment, preferably, an external hexagonal nut section 205 is fixedly connected to the outside of the first straight pipe section 202. The purpose is to rotate the external hexagonal nut section 205 with auxiliary tools such as wrenches, so as to facilitate the rotation of the externally threaded pipe section 201 and to connect it with the internal threads of other pipes.
[0026] In order to improve aesthetics and reduce the safety hazards caused by sharp edges, thereby reducing the possibility of accidental injury, in this embodiment, preferably, the outer side of the second straight pipe section 204 away from the curved pipe section 203 is provided with a rounded corner 206.
[0027] To prevent jamming and improve connection accuracy, in this embodiment, preferably, the outer side of the end of the tube body 1 is provided with a first insertion chamfer 8. The purpose of the first insertion chamfer 8 is to guide the end of the tube body 1 to be smoothly inserted into the annular groove 3, thereby reducing friction and resistance during assembly and improving assembly efficiency.
[0028] To prevent jamming and improve connection accuracy, in this embodiment, preferably, the top two sides of the positioning protrusion 5 are provided with a second insertion chamfer 9. The purpose is to guide the positioning protrusion 5 to be smoothly inserted into the positioning groove 6 through the second insertion chamfer 9, thereby reducing friction and resistance during assembly and improving assembly efficiency.
[0029] The working principle and usage process of this utility model are as follows: By embedding the end of the pipe body 1 into the annular groove 3 and simultaneously embedding the positioning protrusion 5 into the positioning groove 6, the connection accuracy between the pipe body 1 and the threaded pipe fitting 2 is improved. A first annular weld 4 is welded on the outside of the pipe body 1 and at the end of the threaded pipe fitting 2 to form the first layer of weld, thereby improving the stability of the welded structure. Then, a second annular weld 7 is welded on the outside of the first annular weld 4 to form the second layer of weld, further making the weld fuller, improving the aesthetics, and further improving the stability of the welded structure, improving the sealing performance, and extending the service life of the pipe.
[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A socket joint pipe comprising a pipe body (1), characterized in that: The threaded pipe fitting (2) is provided with an annular groove (3) at the end thereof, the end of the pipe body (1) is embedded in the annular groove (3), and a first annular weld (4) is welded on the outer side of the pipe body (1) and the end of the threaded pipe fitting (2), the annular groove (3) is provided with a positioning protrusion (5), and the end of the pipe body (1) is provided with a positioning groove (6), and the positioning protrusion (5) is embedded in the positioning groove (6).
2. The bell and spigot joint pipe according to claim 1, wherein: The outer side of the first annular weld (4) is welded with a second annular weld (7), and the outer side of the pipe body (1) and the end of the threaded pipe fitting (2) are welded with the second annular weld (7).
3. The bell and spigot joint pipe according to claim 1, wherein: The threaded pipe fitting (2) comprises an outer threaded pipe portion (201), a first straight pipe portion (202), an elbow pipe portion (203) and a second straight pipe portion (204) connected in sequence, and the annular groove (3) is arranged at one end of the second straight pipe portion (204) away from the elbow pipe portion (203).
4. The bell and spigot joint pipe according to claim 3, wherein: The outer side of the first straight pipe portion (202) is fixedly connected with an outer hexagonal nut portion (205).
5. The bell and spigot joint pipe according to claim 3, wherein: The outer side of one end of the second straight pipe portion (204) away from the elbow pipe portion (203) is provided with a round corner (206).
6. The bell and spigot joint pipe according to claim 1, wherein: The end of the pipe body (1) is provided with a first insertion chamfer (8) on the outer side thereof.
7. The bell and spigot joint pipe according to claim 1, wherein: The top of the positioning protrusion (5) is provided with a second insertion chamfer (9) on both sides thereof.