Leakage-proof town gas pipeline connecting structure

Abstract

This utility model relates to the field of gas pipeline technology. In particular, it relates to a leak-proof connection structure for urban gas pipelines, including a base pipeline. One end of the pipeline is fixedly installed with a flange ring one and a flange ring two. The surface of flange ring two has an installation port for connecting flange ring one and flange ring two. A locking block is fixedly installed on the surface of flange ring one. The protruding end of the locking block has a telescopic opening. A telescopic groove is formed on one side of the inside of the locking block. A locking assembly for locking flange ring one and flange ring two is installed inside the telescopic groove. Through the cooperation of the locking block on the surface of flange ring one with the locking assembly and limiting assembly in the telescopic groove, an efficient, stable, and safe connection is achieved. The tight cooperation between the locking block and the locking assembly significantly improves the connection stability, effectively preventing loosening or detachment, thereby greatly enhancing the leak-proof performance.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline technology, and in particular to a leak-proof connection structure for urban gas pipelines. Background Technology

[0002] Natural gas is highly diffusive, flammable, and explosive. Therefore, proper sealing measures must be taken during gas transportation to prevent leaks and potential hazards. The connections between pipes in gas pipelines are often weak points prone to leakage. However, traditional gas pipeline connection structures, especially those relying on flanges and bolts, often present a series of problems. These connection methods are not only cumbersome and complex to install, requiring significant manpower and time, but also prone to insufficient bolt tightening during prolonged manual operation, leading to gas leaks and posing a serious threat to the safety and stability of the system. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: a leak-proof urban gas pipeline connection structure, comprising a base pipeline, one end of which is fixedly fitted with a flange ring one and a flange ring two. The surface of the flange ring two has an installation port for connecting the flange ring one and the flange ring two. A locking block is fixedly disposed on the surface of the flange ring one. The protruding end of the locking block has a telescopic opening. A telescopic groove is formed on one side of the locking block. A locking assembly for locking the flange ring one and the flange ring two is disposed inside the telescopic groove. A limiting component for locking the locking assembly is disposed inside the locking assembly. The limiting component includes a locking plate. A movable groove is formed on the side of the telescopic groove. The locking plate is disposed inside the movable groove. An installation groove is formed on the side of the movable groove. A pressing and rebounding element is disposed inside the installation groove. A trigger plate is disposed below the pressing and rebounding element. A connecting block is disposed around the pressing and rebounding element. The connecting block is fixedly connected to the locking plate.

[0004] As an improvement to the above technical solution, the engaging assembly includes a limiting post, which is disposed inside the telescopic groove. A spring is disposed around the limiting post, and a movable plate is disposed around the limiting post. The movable plate is disposed above the spring, and a locking head is disposed inside the telescopic opening. The movable plate is fixedly connected to the locking head.

[0005] As an improvement to the above technical solution, both the trigger plate and one end of the card head are chamfered.

[0006] As an improvement to the above technical solution, the length of the card plate is less than the internal length of the moving groove, and a gap is left between the card plate and the inner wall of the telescopic groove.

[0007] As an improvement to the above technical solution, the length of the clamp head is less than the depth of the telescopic opening. The beneficial effects of this utility model are as follows: Through the cooperation of the clamping block on one surface of the flange ring with the engaging and limiting components within the telescopic groove, an efficient, stable, and safe connection is achieved. The tight fit between the clamping block and the engaging components significantly improves connection stability, effectively preventing loosening or detachment, thereby greatly enhancing leak-proof performance. Simultaneously, the design of the pressing and rebound element and trigger plate in the limiting components simplifies the installation and disassembly process, improving operational convenience. Furthermore, this connection structure has good adaptability and a long service life, capable of adapting to flange ring connections of different specifications and sizes, reducing maintenance costs and replacement frequency, and providing strong protection for the safe and stable operation of urban gas pipelines. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0009] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention;

[0010] Figure 3 This is a three-dimensional structural diagram of the card block in this utility model;

[0011] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0012] Figure 5 for Figure 3 Enlarged view at point B

[0013] Figure 6 for Figure 5 Enlarged view of point C in the middle.

[0014] Attached reference numerals: 10. Pipe; 11. Flange ring one; 12. Flange ring two; 13. Mounting port; 20. Locking block; 21. Telescopic port; 22. Telescopic groove; 23. Limiting post; 24. Spring; 25. Moving plate; 26. Locking head; 30. Moving groove; 31. Locking plate; 32. Mounting groove; 33. Press-back spring; 34. Trigger plate; 35. Connecting block. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0016] Please see Figure 1-6This utility model provides a technical solution: a leak-proof urban gas pipeline connection structure, including a base pipe 10, with a flange ring 11 and a flange ring 22 fixedly installed at one end of the pipe 10. The flange ring 22 has an installation port 13 for connecting the flange ring 11 and the flange ring 22. A locking block 20 is fixedly installed on the surface of the flange ring 11. The extended end of the locking block 20 has a telescopic opening 21. A telescopic groove 22 is provided on one side inside the locking block 20, and a flange is provided inside the telescopic groove 22 for connecting the flange ring 11. The locking assembly that locks ring 11 and flange ring 2 12 has a limiting component inside for locking the locking assembly; the limiting component includes a locking plate 31, a moving groove 30 is opened on the side of the telescopic groove 22, the locking plate 31 is set inside the moving groove 30, an installation groove 32 is opened on the side of the moving groove 30, a pressing and rebounding member 33 is set inside the installation groove 32, a trigger plate 34 is set below the pressing and rebounding member 33, and a connecting block 35 is set around the pressing and rebounding member 33, and the connecting block 35 is fixedly connected to the locking plate 31.

[0017] In this embodiment, the efficient, stable, and safe connection is achieved through the cooperation of the locking block 20 on the surface of the flange ring 11 with the locking assembly and limiting assembly in the expansion groove 22. The tight cooperation between the locking block 20 and the locking assembly significantly improves the connection stability and effectively prevents loosening or falling off, thereby greatly enhancing the anti-leakage performance. At the same time, the design of the pressing and rebounding element 33 and the trigger plate 34 in the limiting assembly simplifies the installation and disassembly process and improves the ease of operation. In addition, this connection structure also has good adaptability and a long service life, and can adapt to flange ring connections of different specifications and sizes, reducing maintenance costs and replacement frequency, and providing a strong guarantee for the safe and stable operation of the urban gas pipeline 10.

[0018] Specifically, the locking assembly includes a limiting post 23, which is located inside the telescopic groove 22. A spring 24 is provided around the limiting post 23, and a movable plate 25 is provided around the limiting post 23. The movable plate 25 is located above the spring 24, and a locking head 26 is provided inside the telescopic opening 21. The movable plate 25 and the locking head 26 are fixedly connected.

[0019] In this embodiment, the limiting post 23 is securely placed in the telescopic groove 22, and the outer spring 24 provides continuous elastic force to the moving plate 25. When flange ring 11 is aligned with and close to flange ring 22, the clamp 26 automatically extends under the push of the spring 24 and tightly clamps into the corresponding position of flange ring 22, realizing rapid and automatic locking, ensuring the stability and reliability of the connection. Furthermore, the elastic adjustment of the spring 24 enhances the adaptability of the connection structure to flange rings of different sizes and specifications. At the same time, the buffering effect of the spring 24 effectively reduces the direct impact and wear between the clamp 26 and the flange ring, thereby extending the service life of the connection structure and providing comprehensive and powerful protection for the safe and stable operation of the urban gas pipeline 10.

[0020] Specifically, both the trigger plate 34 and the card head 26 have beveled edges.

[0021] In this embodiment, the chamfering of one end of the trigger plate 34 and the clamp 26 improves the convenience and reliability of the connection process, allowing the trigger plate 34 to be easily pressed down under external force, releasing the clamp plate 31 and allowing the clamp 26 to extend smoothly, thus reducing the difficulty of connection. At the same time, the chamfer of the clamp 26 also ensures that it can easily and tightly snap into the corresponding position of the flange ring 12, improving the accuracy and efficiency of installation. In addition, the chamfer design also enhances the stability of the connection, reduces the risk of leakage under long-term use or external force, and effectively reduces the direct contact and friction between the trigger plate 34 and the clamp 26, extending the service life of the connection structure.

[0022] Specifically, the length of the card plate 31 is less than the internal length of the moving groove 30, and there is a gap between the card plate 31 and the inner wall of the telescopic groove 22.

[0023] In this embodiment, the length of the clamping plate 31 is set to be less than the internal length of the moving groove 30, and an appropriate gap is maintained between the clamping plate 31 and the inner wall of the telescopic groove 22. This ensures that the clamping plate 31 can move freely and without obstruction within the moving groove 30, thereby improving the installation and disassembly efficiency of the connection structure. At the same time, it also effectively avoids direct contact and friction between the clamping plate 31 and the inner wall of the telescopic groove 22, reducing the risk of wear and damage and extending the service life of the connection structure.

[0024] Specifically, the length of the card head 26 is less than the depth of the telescopic opening 21.

[0025] In this embodiment, the design of the clamp head 26 having a length less than the depth of the telescopic opening 21 ensures that the clamp head 26 has sufficient room to move within the telescopic opening 21, allowing it to smoothly extend and engage with the corresponding position of the flange ring 12 when needed. It also provides sufficient leeway for the retraction of the clamp head 26, making disassembly equally easy and quick. Furthermore, this dimensional relationship between the clamp head 26 and the telescopic opening 21 effectively avoids connection difficulties or damage caused by size mismatch, improving the reliability and durability of the connection structure. The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it.

Claims

1. A leak-proof urban gas pipeline connection structure, comprising a base pipe (10), wherein a flange ring one (11) and a flange ring two (12) are fixedly installed at one end of the pipe (10), and the flange ring two (12) has an installation port (13) for connecting the flange ring one (11) and the flange ring two (12) on its surface, characterized in that: A locking block (20) is fixedly provided on the surface of the flange ring one (11). The extended end of the locking block (20) is provided with a telescopic opening (21). A telescopic groove (22) is provided on one side inside the locking block (20). A locking assembly for locking flange ring one (11) and flange ring two (12) is provided inside the telescopic groove (22). A limiting component for locking the locking assembly is provided inside the locking assembly. The limiting component includes a card plate (31), a movable groove (30) is provided on the side of the telescopic groove (22), the card plate (31) is disposed inside the movable groove (30), an installation groove (32) is provided on the side of the movable groove (30), a press-back spring member (33) is provided inside the installation groove (32), a trigger plate (34) is provided below the press-back spring member (33), a connecting block (35) is provided around the press-back spring member (33), and the connecting block (35) is fixedly connected to the card plate (31).

2. The leak-proof urban gas pipeline connection structure according to claim 1, characterized in that: The locking assembly includes a limiting post (23), which is located inside the telescopic groove (22). A spring (24) is provided around the limiting post (23), and a movable plate (25) is provided around the limiting post (23). The movable plate (25) is located above the spring (24), and a locking head (26) is provided inside the telescopic opening (21). The movable plate (25) and the locking head (26) are fixedly connected.

3. The leak-proof urban gas pipeline connection structure according to claim 1, characterized in that: Both the trigger plate (34) and the card head (26) have a chamfered end.

4. The leak-proof urban gas pipeline connection structure according to claim 1, characterized in that: The length of the card plate (31) is less than the internal length of the moving groove (30), and there is a gap between the card plate (31) and the inner wall of the telescopic groove (22).

5. The leak-proof urban gas pipeline connection structure according to claim 2, characterized in that: The length of the card head (26) is less than the depth of the telescopic opening (21).

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