Socket type steel pipe sealing structure
By adopting a sealed soft ring and protective cover structure in the plug-in steel pipe, the problem of susceptibility to erosion at the connection is solved, and the high sealing and strength are improved, and rust is avoided.
Patent Information
- Application Number
- CN202422267570.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-18
AI Technical Summary
When used in buried ground, the sealing properties of the existing building plug-in steel pipes are susceptible to erosion at the connection, resulting in reduced sealing properties and insufficient strength.
The joint head and plug joint design are adopted, combined with the sealing soft ring, protective ring, flange and bolt structure, and the sealing is achieved by bolting the flange close to the extruded sealing soft ring, and the connection is protected by the protective cover and the external thread ring to avoid direct contact with the soil.
It improves the sealing and strength at the connection, prevents rust, and enhances the durability of the steel pipe.
Smart Images
Figure CN223090198U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of socket steel pipes, in particular to a socket steel pipe sealing structure. Background Art
[0002] Socket pipes refer to pipes or pipe fittings for connection, or bifurcated pipes. The two ends of the pipe are made into socket and spigot ends. The spigot end is inserted into the socket end, and then the joint is sealed. Socket steel pipes are widely used in building structures, buried underground for transporting liquids and gases.
[0003] For existing building socket steel pipes, when splicing, a sealing ring and glue are used to improve the sealing performance at the joint. However, there are many disadvantages. The strength of the joint is low, and when buried in the soil, it is easily eroded, resulting in a decrease in sealing performance. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the deficiencies in the prior art and propose a socket steel pipe sealing structure that can protect the joint, thereby avoiding direct contact with soil and water stains and the problem of easy rusting.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A socket steel pipe sealing structure includes a socket joint and a spigot joint. Inside the right end of the socket joint, there is a first connection area, and to the right of the first connection area inside the right end of the socket joint, there is a second connection area. A first connecting pipe is fixedly connected to the left end of the spigot joint. The outer wall of the first connecting pipe is closely fitted with the inner wall of the second connection area. A second connecting pipe is fixedly connected to the left end of the first connecting pipe. The outer wall of the second connecting pipe is closely fitted with the inner wall of the first connection area. A sealing cavity is formed among the second connection area, the first connecting pipe, and the second connecting pipe. A sealing soft ring is arranged inside the sealing cavity. A protective ring is arranged outside the first connecting pipe. A fixing component is arranged between the socket joint and the spigot joint. A first protective component is arranged outside the spigot joint, and a second protective component is arranged outside the socket joint.
[0007] Further, the fixing component includes a first flange fixedly connected to the outer wall of the right end of the socket joint. A second flange is arranged to the right of the first flange. The inner wall of the second flange is fixedly connected to the outer wall of the left end of the spigot joint. A plurality of bolts are jointly arranged inside the first flange and the second flange.
[0008] Further, the first protective component includes a first protective cover outside the spigot joint. A sealing ring is fixedly connected to the inner wall of the right end of the first protective cover. The outer wall of the sealing ring is closely fitted with the outer wall of the spigot joint. Handles are fixedly connected to both the upper and lower sides of the first protective cover.
[0009] Furthermore, the second protection component includes a reinforcing cylinder outside the socket joint, a second protective cover is fixedly connected to the right end of the outer wall of the reinforcing cylinder, and an external thread ring is fixedly connected to the inner wall of the right end of the second protective cover.
[0010] Furthermore, the right end of the external thread ring is threadedly connected to the inner wall of the left end of the first protective cover.
[0011] Furthermore, a fastener is threadedly connected to the front side of the reinforcing cylinder, and the rear end of the fastener is in close contact with the outer wall of the socket joint.
[0012] Furthermore, limiting grooves are formed in both the upper and lower sides of the inner wall of the reinforcing cylinder, limiting strips are arranged inside the limiting grooves, and the opposite sides of the limiting strips are respectively fixedly connected to the upper and lower sides of the outer wall of the socket joint.
[0013] Furthermore, the inner wall of the reinforcing cylinder is in close fit with the outer wall of the socket joint, and the right end of the reinforcing cylinder is in close fit with the left side of the first flange.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the utility model, the left end of the socket is inserted into the socket joint, so that the second connecting pipe is matched with the first connection area, and the first connecting pipe is matched with the second connection area. By setting the first flange, the second flange and the bolts, the socket joint and the socket are driven to approach, reducing the volume of the sealing cavity, thereby squeezing and deforming the sealing soft ring, so that the sealing soft ring is in close contact with the inner wall of the second connection area and the outer wall of the second connecting pipe for sealing, thus improving the sealing effect.
[0016] 2. In the utility model, by setting the handle to drive the first protective cover to rotate and connect with the external thread ring, the first flange, the second flange and the bolts are covered inside, thus avoiding the problem of being easily eroded when buried in the soil. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is an overall schematic diagram of a socket and spigot steel pipe sealing structure proposed by the utility model;
[0018] Figure 2 is a schematic diagram of a bolt of a socket and spigot steel pipe sealing structure proposed by the utility model;
[0019] Figure 3 is a sectional schematic diagram of a socket and spigot steel pipe sealing structure proposed by the utility model;
[0020] Figure 4 is a schematic diagram of an external thread ring of a socket and spigot steel pipe sealing structure proposed by the utility model.
[0021] Legend:
[0022] 1. Socket joint; 2. First connection area; 3. Second connection area; 4. Plug joint; 5. First connecting pipe; 6. Second connecting pipe; 7. Sealing soft ring; 8. Protective ring; 9. First flange; 10. Second flange; 11. Bolt; 12. First protective cover; 13. Sealing ring; 14. Handle; 15. Reinforcing cylinder; 16. Limiting groove; 17. Second protective cover; 18. External thread ring; 19. Fastener; 20. Limiting strip. Detailed implementation manner
[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0024] Referring to Figures 1 - 3 , an embodiment provided by the present invention: a socket-and-spigot steel pipe sealing structure, including a socket joint 1 and a plug joint 4. A first connection area 2 is arranged inside the right end of the socket joint 1, and a second connection area 3 is arranged inside the right end of the socket joint 1 corresponding to the right side of the first connection area 2. The left end of the plug joint 4 is fixedly connected with a first connecting pipe 5. The outer wall of the first connecting pipe 5 is in close fit with the inner wall of the second connection area 3. The left end of the first connecting pipe 5 is fixedly connected with a second connecting pipe 6. The outer wall of the second connecting pipe 6 is in close fit with the inner wall of the first connection area 2. A sealing cavity is formed among the second connection area 3, the first connecting pipe 5 and the second connecting pipe 6. A sealing soft ring 7 is arranged inside the sealing cavity. A protective ring 8 is arranged outside the first connecting pipe 5. The outer wall of the right end of the socket joint 1 is fixedly connected with a first flange 9. A second flange 10 is arranged on the right side of the first flange 9. The inner wall of the second flange 10 is fixedly connected to the outer wall of the left end of the plug joint 4. A plurality of bolts 11 are jointly arranged inside the first flange 9 and the second flange 10;
[0025] Slip the protective ring 8 over the outside of the first connecting pipe 5, and slip the sealing soft ring 7 over the outside of the second connecting pipe 6. Then insert the left end of the socket 4 into the socket 1, so that the second connecting pipe 6 mates with the first connection area 2, and the first connecting pipe 5 mates with the second connection area 3. Then drive the first flange 9 and the second flange 10 to approach each other through the provided bolts 11, and drive the socket 1 and the socket 4 to approach each other, thereby reducing the volume of the sealing cavity between the second connection area 3, the first connecting pipe 5 and the second connecting pipe 6, thereby squeezing the sealing soft ring 7, causing the sealing soft ring 7 to deform and tightly adhere to the inner wall of the second connection area 3 and the outer wall of the second connecting pipe 6 for sealing, thereby improving the sealing performance of the steel pipe. At the same time, squeeze the protective ring 8 to block the gap at the connection, preventing water stains from seeping into the gap and causing corrosion at the connection.
[0026] Refer to Figure 1 and Figure 4 As shown in and, a first protective cover 12 is provided on the outside of the socket 4. A sealing ring 13 is fixedly connected to the inner wall of the right end of the first protective cover 12. The outer wall of the sealing ring 13 is in close fit with the outer wall of the socket 4. Handles 14 are fixedly connected to both the upper and lower sides of the first protective cover 12. A reinforcing cylinder 15 is provided on the outside of the socket 1. A second protective cover 17 is fixedly connected to the right end outer wall of the reinforcing cylinder 15. An external thread ring 18 is fixedly connected to the inner wall of the right end of the second protective cover 17. The right end of the external thread ring 18 is threadedly connected to the inner wall of the left end of the first protective cover 12. A fastener 19 is threadedly connected to the front side of the reinforcing cylinder 15. The rear end of the fastener 19 is in close contact with the outer wall of the socket 1. Limit grooves 16 are provided on both the upper and lower sides of the inner wall of the reinforcing cylinder 15. Limit strips 20 are provided inside the limit grooves 16. The opposite sides of the limit strips 20 are fixedly connected to both the upper and lower sides of the outer wall of the socket 1. The inner wall of the reinforcing cylinder 15 is in close fit with the outer wall of the socket 1. The right end of the reinforcing cylinder 15 is in close contact with the left side of the first flange 9;
[0027] The reinforcing cylinder 15 and the second protective cover 17 move to the right outside the socket 1, so that the reinforcing cylinder 15 is in close contact with the first flange 9. The first protective cover 12 moves to the left. Drive the first protective cover 12 to rotate through the handle 14 and connect it to the external thread ring 18, covering the first flange 9, the second flange 10 and the bolt 11 inside to protect the connection, thereby avoiding direct contact with mud and water stains and causing corrosion of the steel pipe.
[0028] Working principle: Slip the protective ring 8 over the outside of the first connecting pipe 5, and slip the sealing soft ring 7 over the outside of the second connecting pipe 6. Then insert the left end of the socket 4 into the socket joint 1, so that the second connecting pipe 6 mates with the first connection area 2, and the first connecting pipe 5 mates with the second connection area 3. Subsequently, drive the first flange 9 and the second flange 10 to approach each other by means of the provided bolts 11, and drive the socket joint 1 and the socket 4 to approach each other, thereby reducing the volume of the sealing cavity among the second connection area 3, the first connecting pipe 5 and the second connecting pipe 6, thereby squeezing the sealing soft ring 7, causing the sealing soft ring 7 to deform and closely adhere to the inner wall of the second connection area 3 and the outer wall of the second connecting pipe 6 for sealing. At the same time, squeeze the protective ring 8 to block the gap at the connection; The reinforcing cylinder 15 and the second protective cover 17 move to the right outside the socket joint 1, so that the reinforcing cylinder 15 closely adheres to the first flange 9, and the first protective cover 12 moves to the left. Drive the first protective cover 12 to rotate through the handle 14 and connect with the external thread ring 18 to cover the first flange 9, the second flange 10 and the bolts 11 inside.
[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A socket-type steel pipe sealing structure, comprising a socket joint (1) and a spigot joint (4), characterized in that: Inside the right end of the socket joint (1), there is a first connection area (2). Inside the right end of the socket joint (1), a second connection area (3) is arranged corresponding to the right side of the first connection area (2). The left end of the plug joint (4) is fixedly connected with a first connecting pipe (5). The outer wall of the first connecting pipe (5) is closely fitted with the inner wall of the second connection area (3). The left end of the first connecting pipe (5) is fixedly connected with a second connecting pipe (6). The outer wall of the second connecting pipe (6) is closely fitted with the inner wall of the first connection area (2). A sealing cavity is formed among the second connection area (3), the first connecting pipe (5) and the second connecting pipe (6). A sealing soft ring (7) is arranged inside the sealing cavity. A protective ring (8) is arranged outside the first connecting pipe (5). A fixing component is arranged between the socket joint (1) and the plug joint (4). A first protective component is arranged outside the plug joint (4). A second protective component is arranged outside the socket joint (1).
2. The socket steel pipe sealing structure according to claim 1, characterized in that: The fixing component includes a first flange (9) fixedly connected to the outer wall of the right end of the socket joint (1). A second flange (10) is arranged on the right side of the first flange (9). The inner wall of the second flange (10) is fixedly connected to the outer wall of the left end of the plug joint (4). A plurality of bolts (11) are jointly arranged inside the first flange (9) and the second flange (10).
3. A socket-type steel pipe sealing structure according to claim 1, characterized in that: The first protective component includes a first protective cover (12) outside the plug joint (4). A sealing ring (13) is fixedly connected to the inner wall of the right end of the first protective cover (12). The outer wall of the sealing ring (13) is closely fitted with the outer wall of the plug joint (4). Handles (14) are fixedly connected to both the upper and lower sides of the first protective cover (12).
4. A socket-type steel pipe sealing structure according to claim 1, characterized in that: The second protective component includes a reinforcing cylinder (15) outside the socket joint (1). A second protective cover (17) is fixedly connected to the outer wall of the right end of the reinforcing cylinder (15). An external thread ring (18) is fixedly connected to the inner wall of the right end of the second protective cover (17).
5. The socket-welding steel pipe sealing structure according to claim 4, characterized in that: The right end of the external thread ring (18) is threadedly connected to the inner wall of the left end of the first protective cover (12).
6. The socket-welding steel pipe sealing structure according to claim 4, wherein: A fastener (19) is threadedly connected to the front side of the reinforcing cylinder (15). The rear end of the fastener (19) is closely attached to the outer wall of the socket joint (1).
7. The socket steel pipe sealing structure according to claim 4, characterized in that: Limit grooves (16) are respectively opened on both the upper and lower sides of the inner wall of the reinforcing cylinder (15). Limit strips (20) are arranged inside the limit grooves (16). The opposite sides of the limit strips (20) are respectively fixedly connected to both the upper and lower sides of the outer wall of the socket joint (1).
8. A socket-type steel pipe sealing structure according to claim 4, characterized in that: The inner wall of the reinforcing cylinder (15) is closely fitted with the outer wall of the socket joint (1). The right end of the reinforcing cylinder (15) is closely attached to the left side of the first flange (9).