A smart connection device for high-efficiency leak prevention in natural gas pipeline networks

The motor-driven drive wheel and belt transmission system move the threaded rod and threaded sleeve to achieve precise clamping of the natural gas pipeline. This solves the leakage problem caused by the inability of existing devices to automatically adjust the clamping force, and improves the sealing performance and ease of operation of the pipeline connection.

CN224516153UActive Publication Date: 2026-07-17

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-09-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing natural gas pipeline connection devices cannot automatically adjust the clamping force, which can easily lead to leakage accidents when the pipeline is displaced or gapped due to thermal expansion and contraction.

Method used

The system employs a motor-driven drive wheel and belt transmission system, which moves the horizontal plate and sealing clamp through the threaded rod and threaded sleeve to achieve precise clamping of the pipeline and prevent leakage caused by thermal expansion and contraction.

Benefits of technology

It achieves efficient sealing of pipelines, reduces the risk of natural gas leakage, improves the convenience and efficiency of pipeline connections, and reduces human error.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an intelligent connection device for high-efficiency leak prevention in natural gas pipeline networks, including a connection box. Motors are fixedly installed on both sides of the outer surface of the connection box. A drive wheel is fixedly installed at the output end of the motor. Belts are driven to both sides of the front surface of the drive wheel. A driven wheel is driven to one end of each belt, away from each other. A threaded rod is fixedly installed on the inner surface of the driven wheel, and a threaded sleeve is threaded onto the front surface of the threaded rod. This utility model drives the drive wheel to rotate via a motor, which in turn drives the driven wheel to rotate synchronously via belts. This causes the threaded rod inside the driven wheel to rotate, which in turn pushes the threaded sleeve to move and clamp the cross plate, connecting rod, and sealing clamp towards the pipeline body. Compared to traditional fixed clamping structures, this device allows for precise control of the clamping force of the sealing clamp via a motor, effectively preventing leakage caused by displacement or gaps in the pipeline body due to thermal expansion and contraction, and significantly improving the sealing performance of the pipeline connection.
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Description

Technical Field

[0001] This utility model relates to the field of natural gas pipeline technology, specifically to an intelligent connection device for high-efficiency leak prevention in natural gas pipeline networks. Background Technology

[0002] Natural gas pipelines, also known as gas transmission pipelines, are pipeline systems that transport natural gas from extraction sites or processing plants to urban gas distribution centers or users. They have advantages such as low transportation costs, high safety, and low losses. Their structure includes trunk pipeline networks and intelligent monitoring systems. However, existing natural gas pipeline connecting devices generally have functional defects. The core problem is that they do not have the function of automatically adjusting clamping to prevent leakage. In actual applications, the pressure of natural gas in the pipeline will change with factors such as the transmission volume and the external temperature. The pipeline will experience a certain degree of thermal expansion and contraction, which will cause displacement or gaps between the connecting pipe sections. The clamping force of the existing connecting devices is fixed and cannot automatically adjust the clamping degree according to the actual changes in the pipeline. When the pipeline is displaced or has gaps, the original clamping and sealing structure will fail, which can easily lead to natural gas leakage accidents. Utility Model Content

[0003] The purpose of this invention is to provide an intelligent connection device for high-efficiency leak prevention in natural gas pipeline networks, which has the advantage of clamping to prevent leakage.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an intelligent connection device for efficient leak prevention in natural gas pipeline networks, comprising a connection box, motors fixedly installed on both sides of the outer surface of the connection box, a drive wheel fixedly installed at the output end of the motor, belts drivingly connected to both sides of the front surface of the drive wheel, a driven wheel drivingly connected to the opposite ends of the belts, a threaded rod fixedly installed on the inner surface of the driven wheel, a threaded sleeve threadedly installed on the front surface of the threaded rod, a horizontal plate fixedly installed at the adjacent ends of the threaded sleeve, a connecting rod clamped in the inner cavity of the horizontal plate, a sealing clamp fixedly installed at the adjacent ends of the connecting rod, and a pipeline body clamped at the adjacent ends of the sealing clamp.

[0005] As a preferred embodiment, mounting plates are fixedly installed on all four sides of the outer surface of the connecting box, and mounting holes are provided on the front surface of the mounting plates.

[0006] As a preferred embodiment, guide rails are fixedly installed on both sides of the inner cavity of the connecting box, and the inner cavity of the guide rails is fixedly installed on the opposite ends of the threaded sleeves via guide rods.

[0007] As a preferred embodiment, mounting bolts are fixedly installed around the front surface of the connecting box, and a limit plate is fixedly installed at one end of the threaded rod that is close to the other.

[0008] As a preferred embodiment, electric telescopic rods are fixedly installed on both sides of the inner cavity of the horizontal plate, and guide blocks are fixedly installed at the output end of the electric telescopic rods. A clamping ring is fixedly installed on the top of the guide block through a bracket, and the ends of the clamping rings that are close to each other are clamped to the front surface of the connecting rod.

[0009] As a preferred embodiment, guide grooves are provided on both sides of the bottom of the inner cavity of the horizontal plate, and the bottom of the guide block is slidably installed in the inner cavity of the guide groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention uses a motor to drive the active wheel to rotate, which in turn drives the driven wheel to rotate synchronously via a belt. This causes the threaded rod inside the driven wheel to rotate, which in turn pushes the threaded sleeve to move and clamp the horizontal plate, connecting rod, and sealing clamp towards the pipeline body. Compared to traditional fixed clamping structures, this invention allows for precise control of the clamping force of the sealing clamp via a motor, effectively preventing leakage caused by displacement or gaps in the pipeline body due to thermal expansion and contraction. This significantly improves the sealing performance of the pipeline connection, reduces the risk of natural gas leakage, and eliminates the need for manual adjustment of the threaded rod or sealing clamp. This reduces manpower and avoids problems such as uneven clamping force and operational errors that may occur with manual operation, improving the convenience and efficiency of pipeline connection operations. It is particularly suitable for large-scale natural gas pipeline installation or maintenance scenarios. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the connecting box structure of this utility model;

[0014] Figure 3 This is a cross-sectional view of the horizontal plate structure of this utility model.

[0015] In the diagram: 1. Connecting box; 2. Mounting plate; 3. Motor; 4. Mounting hole; 5. Pipe body; 6. Driven wheel; 7. Sealing clamp; 8. Guide rail; 9. Belt; 10. Horizontal plate; 11. Threaded sleeve; 12. Threaded rod; 13. Driving wheel; 14. Clamping ring; 15. Guide groove; 16. Connecting rod; 17. Guide block; 18. Electric telescopic rod. Detailed Implementation

[0016] 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.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0018] Example 1, please refer to Figures 1-2 As shown, this utility model provides an intelligent connection device for high-efficiency leak prevention in natural gas pipeline networks, including a connection box 1. Motors 3 are fixedly installed on both sides of the outer surface of the connection box 1. A drive wheel 13 is fixedly installed at the output end of the motor 3. Belts 9 are driven to both sides of the front surface of the drive wheel 13. Driven wheels 6 are driven to the ends of the belts 9 that are far apart from each other. A threaded rod 12 is fixedly installed on the inner surface of the driven wheel 6. A threaded sleeve 11 is threadedly installed on the front surface of the threaded rod 12. A horizontal plate 10 is fixedly installed at the ends of the threaded sleeves 11 that are close to each other. A connecting rod 16 is clamped in the inner cavity of the horizontal plate 10. A sealing clamp 7 is fixedly installed at the ends of the connecting rods 16 that are close to each other. A pipeline body 5 is clamped at the ends of the sealing clamp 7 that are close to each other.

[0019] This technical solution uses a motor 3 to drive the drive wheel 13 to rotate. The drive wheel 13, via a belt 9, drives the driven wheel 6 to rotate synchronously, causing the threaded rod 12 inside the driven wheel 6 to rotate. This, in turn, pushes the threaded sleeve 11 to move the horizontal plate 10, connecting rod 16, and sealing clamp 7 towards the pipeline body 5 and clamp them. Compared with traditional fixed clamping structures, the motor 3 can precisely control the clamping force of the sealing clamp 7, effectively avoiding leakage problems caused by displacement or gaps in the pipeline body 5 due to thermal expansion and contraction. This significantly improves the sealing performance of the pipeline connection and reduces the risk of natural gas leakage. The entire clamping process is powered by the motor 3, eliminating the need for manual adjustment of the threaded rod 12 or sealing clamp 7, reducing manpower input, and avoiding problems such as uneven clamping force and operational errors that may occur with manual operation. This improves the convenience and efficiency of pipeline connection operations, and is especially suitable for large-scale natural gas pipeline network installation or maintenance scenarios.

[0020] Example 2: Based on Example 1, this utility model is as follows... Figure 1 and Figure 2As shown, mounting plates 2 are fixedly installed on all four sides of the outer surface of the connecting box 1. Mounting holes 4 are opened on the front surface of the mounting plates 2. Guide rails 8 are fixedly installed on both sides of the inner cavity of the connecting box 1. The inner cavity of the guide rails 8 is fixedly installed on the opposite ends of the threaded sleeves 11 through guide rods. Mounting bolts are fixedly installed on all four sides of the front surface of the connecting box 1. Limiting plates are fixedly installed on the opposite ends of the threaded rods 12.

[0021] By adopting the above technical solution, the installation hole 4 and the installation plate 2 facilitate the installation of the device by the user, and the guide rail 8 and the guide rod achieve the effect of limiting the threaded sleeve 11.

[0022] Example 3, the present invention as follows Figure 3 As shown, electric telescopic rods 18 are fixedly installed on both sides of the inner cavity of the horizontal plate 10. A guide block 17 is fixedly installed at the output end of the electric telescopic rod 18. A clamping ring 14 is fixedly installed on the top of the guide block 17 through a bracket. The ends of the clamping rings 14 that are close to each other are clamped to the front surface of the connecting rod 16. Guide grooves 15 are opened on both sides of the bottom of the inner cavity of the horizontal plate 10. The bottom of the guide block 17 is slidably installed in the inner cavity of the guide groove 15.

[0023] By adopting the above technical solution, the electric telescopic rod 18 achieves the effect of the guide block 17 moving left and right through the guide groove 15, the guide block 17 achieves the effect of the clamping ring 14 moving left and right, and the clamping ring 14 achieves the effect of clamping and limiting the connecting rod 16.

[0024] The working principle of this utility model is as follows: When it is necessary to clamp and seal the pipe body 5, the motor 3, which is fixedly installed on both sides of the outer surface of the connecting box 1, is started. The output end of the motor 3 drives the drive wheel 13, which is fixedly connected to it, to rotate. At this time, the drive wheel 13, as the starting component of power transmission, transmits the rotational power to the driven wheel 6, which is far away from one end of the belt 9, through the transmission belt 9 connected on both sides of its front surface. This causes the driven wheel 6 to rotate synchronously with the drive wheel 13. Since the inner surface of the driven wheel 6 is fixedly installed with a threaded rod 12, the rotation of the driven wheel 6 will directly drive the threaded rod 12 to rotate synchronously. The front surface of the threaded rod 12 is threaded with a threaded sleeve 11. According to the principle of thread transmission, the rotation of the threaded rod 12 will be converted into the rotation of the threaded sleeve 11 along the thread. The rod 12 moves linearly along its axis, and the threaded sleeves 11 on both sides move towards each other under the drive of the threaded rod 12. A horizontal plate 10 is fixedly installed at the end of the threaded sleeves 11 that is close to each other. Therefore, the movement of the threaded sleeves 11 will synchronously drive the horizontal plate 10 to move towards the pipe body 5. Since the inner cavity of the horizontal plate 10 is engaged with the connecting rod 16, the movement of the horizontal plate 10 will be transmitted through the connecting rod 16 to the sealing clamp 7 fixedly installed at the end that is close to each other. This causes the sealing clamps 7 on both sides to move synchronously with the horizontal plate 10. As the sealing clamps 7 continue to move towards the pipe body 5, they will eventually contact the outer surface of the pipe body 5 and apply clamping force until the pipe body 5 is stably clamped, thereby completing the sealing operation of the pipe connection and effectively preventing natural gas leakage.

[0025] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0026] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A natural gas pipeline network high-efficiency leak-proof intelligent connecting device, comprising a connecting box (1), characterized in that: Motors (3) are fixedly installed on both sides of the outer surface of the connecting box (1). A drive wheel (13) is fixedly installed at the output end of the motor (3). A belt (9) is driven to both sides of the front surface of the drive wheel (13). A driven wheel (6) is driven to the opposite end of the belt (9). A threaded rod (12) is fixedly installed on the inner surface of the driven wheel (6). A threaded sleeve (11) is threaded on the front surface of the threaded rod (12). A horizontal plate (10) is fixedly installed at the opposite end of the threaded sleeve (11). A connecting rod (16) is clamped in the inner cavity of the horizontal plate (10). A sealing clamp (7) is fixedly installed at the opposite end of the connecting rod (16). A pipe body (5) is clamped at the opposite end of the sealing clamp (7).

2. The natural gas pipeline network high-efficiency leak-proof intelligent connecting device according to claim 1, characterized in that: Mounting plates (2) are fixedly installed on all four sides of the outer surface of the connecting box (1), and mounting holes (4) are opened on the front surface of the mounting plates (2).

3. The natural gas pipeline network high-efficiency leak-proof intelligent connecting device according to claim 1, characterized in that: Guide rails (8) are fixedly installed on both sides of the inner cavity of the connecting box (1). The inner cavity of the guide rail (8) is fixedly installed on the threaded sleeve (11) at one end away from each other by a guide rod.

4. The natural gas pipeline network high-efficiency leak-proof intelligent connecting device according to claim 1, characterized in that: Mounting bolts are fixedly installed around the front surface of the connecting box (1), and a limiting plate is fixedly installed at one end of the threaded rod (12) that is close to each other.

5. The natural gas pipeline network high-efficiency leak-proof intelligent connecting device according to claim 1, characterized in that: Electric telescopic rods (18) are fixedly installed on both sides of the inner cavity of the horizontal plate (10). A guide block (17) is fixedly installed at the output end of the electric telescopic rod (18). A clamping ring (14) is fixedly installed on the top of the guide block (17) through a bracket. The clamping rings (14) are clamped to the front surface of the connecting rod (16) at one end that is close to each other.

6. The natural gas pipeline network high-efficiency leak-proof intelligent connecting device according to claim 5, characterized in that: Guide grooves (15) are provided on both sides of the bottom of the inner cavity of the horizontal plate (10), and the bottom of the guide block (17) is slidably installed in the inner cavity of the guide groove (15).