Anti-seepage pipeline connector device of municipal pipeline
By using a rotating rod and a fixed ring structure to fix the bolts, combined with a sealing gasket, an anti-corrosion layer, and an insulation layer, the problems of leakage and freezing cracking of the pipe interface device were solved, and long-term stable operation was achieved.
Patent Information
- Application Number
- CN202520160637.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-23
AI Technical Summary
After prolonged use, existing pipe connection devices may experience loosening of the threaded seat, leading to increased flange gaps and leakage. Furthermore, freezing in cold weather can cause pipe cracks.
The bolts are fixed by a rotating rod and a fixed ring structure, combined with a design of sealing gasket, anti-corrosion layer and heat insulation layer to prevent the threaded seat from loosening and freezing, thereby improving sealing and corrosion resistance.
It effectively prevents leakage and freezing, reduces maintenance frequency, and ensures long-term stable operation of pipelines.
Smart Images

Figure CN223825815U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline technology, specifically to a municipal pipeline seepage prevention pipe interface device. Background Technology
[0002] A pipeline is a device made up of pipes, pipe fittings, valves, etc., used to transport gas, liquid, or fluid containing solid particles. Pipelines are widely used in various fields. Some projects require the laying of long pipelines, which is where pipe fittings are used.
[0003] Existing pipelines use bolts to fix flanges during use. However, after long-term use, the threaded seats may loosen, leading to increased gaps between flanges and leakage. This requires frequent maintenance and replacement by staff. Furthermore, in cold weather, the inside may freeze, causing cracks in the pipe body and affecting normal use. To address this, we propose a municipal pipeline seepage prevention pipe joint device. Utility Model Content
[0004] In view of the problems existing in the above-mentioned seepage prevention pipe interface devices, this utility model is proposed.
[0005] Therefore, the purpose of this utility model is to provide a municipal pipeline seepage prevention pipe interface device, which solves the problem that after long-term use, the threaded seat will loosen, leading to an increase in the gap between the flanges and leakage.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A municipal pipeline seepage prevention pipe interface device includes a connecting pipe body and a first pipe body. The connecting pipe body has a first pipe body at both ends. Both ends of the connecting pipe body and the first pipe body are fixedly provided with flanges. Multiple bolts are threaded on one side of the flanges. One end of each bolt is threaded with a threaded seat. Two fixed seats are fixedly provided on the wall of the connecting pipe body. Rotating rods are rotatably provided inside the two fixed seats. Connecting seats are threaded on the walls of the rotating rods. Two support rods are rotatably provided on both sides of the connecting seats. A fixing ring is rotatably provided at one end of each support rod. The fixing ring is slidably connected to the bolts.
[0008] Preferably, a sealing gasket is fixedly provided inside the connecting tube, and the sealing gasket is a silicone gasket.
[0009] Preferably, an anti-corrosion layer is fixedly provided on the inner wall of the connecting pipe, and the anti-corrosion layer is an epoxy layer.
[0010] Preferably, an insulation layer is fixedly provided on the outer wall of the connecting pipe, and the insulation layer is an aerogel layer.
[0011] Furthermore, the number of bolts is consistent with the number of openings on the retaining ring.
[0012] Preferably, a gasket is provided on one side of the flange, and the gasket is fixed to one end of the connecting pipe body by bolts.
[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0014] This invention employs a rotating rod and a connecting seat to push a fixing ring to secure the bolts. To prevent the threaded seat from loosening and increasing the gap between the flanges after prolonged use of existing pipelines, thus avoiding leakage, the rotating rod pushes the fixing ring to hold the threaded seat in place. This eliminates the need for frequent maintenance and replacement. Furthermore, to prevent internal freezing and cracking of the pipe body in cold weather, an insulation layer is used to insulate the connecting pipe, preventing cracking and ensuring normal operation. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0016] Figure 1 This is a schematic diagram of the planar structure of the present invention;
[0017] Figure 2 This is a schematic diagram of the planar structure of the connecting pipe body of this utility model;
[0018] Figure 3 This is a schematic diagram of the planar structure of the fixed ring of this utility model.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Connecting pipe body; 2. First pipe body; 3. Flange; 4. Bolt; 5. Threaded seat; 6. Fixed seat; 7. Rotating rod; 8. Connecting seat; 9. Support rod; 10. Fixing ring; 11. Sealing gasket; 12. Anti-corrosion layer; 13. Insulation layer; 14. Gasket. Detailed Implementation
[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0022] This utility model discloses a municipal pipeline seepage prevention pipe interface device.
[0023] This utility model provides, for example Figure 1-3The municipal pipeline seepage prevention pipe interface device shown includes a connecting pipe body 1 and a first pipe body 2. The connecting pipe body 1 has a first pipe body 2 at both ends. Both ends of the connecting pipe body 1 and the first pipe body 2 are fixedly provided with flanges 3. Multiple bolts 4 are threaded on one side of the flanges 3. A threaded seat 5 is threaded on one end of the multiple bolts 4. Two fixing seats 6 are fixedly provided on the wall of the connecting pipe body 1. A rotating rod 7 is rotatably provided inside the two fixing seats 6. A connecting seat 8 is threaded on the wall of the rotating rod 7. Two support rods 9 are rotatably provided on both sides of the connecting seat 8. A fixing ring 10 is rotatably provided at one end of the two support rods 9. The fixing ring 10 is slidably connected to the bolts 4. First, the bolts 4 are used to connect the first pipe body 2 and the connecting pipe body 1. The threaded seat 5 is used to fix the bolts 4, the first pipe body 2 and the connecting pipe body 1. After long-term use, the threaded seat 5 will loosen, which will increase the gap between the flanges 3. To prevent leakage, the rotating rod 7 is used to rotate and push the fixing ring 10 to push against the threaded seat 5 and fix the threaded seat 5.
[0024] To prevent pipe leakage, such as Figure 2 As shown, a sealing gasket 11 is fixed inside the connecting pipe body 1. The sealing gasket 11 is made of silicone to prevent leakage from the pipe.
[0025] To prevent the inside of the pipe from rusting, such as Figure 2 As shown, an anti-corrosion layer 12 is fixedly provided on the inner wall of the connecting pipe 1. The anti-corrosion layer 12 is an epoxy layer, which is used to prevent the inside of the pipe from rusting.
[0026] To prevent the internal parts from freezing and causing the tube to crack, such as Figure 2 As shown, an insulation layer 13 is fixedly provided on the outer wall of the connecting pipe 1. The insulation layer 13 is made of aerogel to prevent the pipe from cracking due to internal freezing.
[0027] Finally, for better sealing, such as Figure 1 As shown, the number of bolts 4 is the same as the number of openings on the retaining ring 10. In order to achieve a better sealing effect, a gasket 14 is provided on one side of the flange 3. The gasket 14 is fixed to one end of the connecting pipe body 1 by bolts 4.
[0028] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A municipal pipeline seepage prevention pipe interface device, comprising a connecting pipe body (1) and a first pipe body (2), characterized in that, The connecting pipe (1) has a first pipe (2) at both ends. Both ends of the connecting pipe (1) and the first pipe (2) are fixedly provided with flanges (3). Multiple bolts (4) are threaded on one side of the flange (3). A threaded seat (5) is threaded on one end of the multiple bolts (4). Two fixed seats (6) are fixedly provided on the pipe wall of the connecting pipe (1). A rotating rod (7) is rotatably provided inside the two fixed seats (6). A connecting seat (8) is threaded on the rod wall of the rotating rod (7). Two support rods (9) are rotatably provided on both sides of the connecting seat (8). A fixed ring (10) is rotatably provided at one end of the two support rods (9). The fixed ring (10) is slidably connected to the bolts (4).
2. The municipal pipeline seepage prevention pipe interface device according to claim 1, characterized in that, A sealing gasket (11) is fixedly provided inside the connecting tube (1), and the sealing gasket (11) is a silicone gasket.
3. The municipal pipeline seepage prevention pipe interface device according to claim 1, characterized in that, The inner wall of the connecting pipe (1) is fixed with an anti-corrosion layer (12), which is an epoxy layer.
4. A municipal pipeline seepage prevention pipe interface device according to claim 1, characterized in that, The outer wall of the connecting pipe (1) is fixed with a heat insulation layer (13), which is an aerogel layer.
5. A municipal pipeline seepage prevention pipe joint device according to claim 1, characterized in that, The number of bolts (4) is the same as the number of openings on the fixing ring (10).
6. A municipal pipeline seepage prevention pipe joint device according to claim 1, characterized in that, A gasket (14) is provided on one side of the flange (3), and the gasket (14) is fixed to one end of the connecting pipe (1) by bolts (4).