Device for detecting leakage of overhead pipe

Abstract

The utility model discloses a device for detecting the leakage of an overhead pipe. The device comprises a first supporting rod and a second supporting rod which are symmetrically distributed left and right, the bottom ends of the first supporting rod and the second supporting rod are movably connected through a clamping mechanism, and arc-shaped ball plates are arranged at the top ends of the first supporting rod and the second supporting rod. And hooks are arranged on the first support rod and the second support rod. Through the device, the cracking position of the overhead pipe can be accurately detected under the condition of avoiding high-altitude operation.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection equipment technology, specifically a device for detecting leaks in overhead pipes. Background Technology

[0002] Natural gas stations typically use overhead pipelines for gas pipes exceeding two meters in height. These overhead pipelines are exposed to the outdoors for extended periods, leading to paint peeling, rust, and potential cracks, which can cause natural gas leaks. To detect potential hazards, current technology generally involves manual monitoring of the area around the overhead pipeline using a handheld infrared laser detector. The concentration of natural gas in the surrounding gas is used to determine if a leak has occurred. However, this method cannot accurately pinpoint the location of the leak. Furthermore, manually climbing the overhead pipeline to inspect for leaks constitutes high-altitude work, posing significant operational risks. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a device for detecting leaks in overhead pipes.

[0004] The technical solution of this utility model is as follows: A device for detecting leaks in overhead pipes includes a first support rod and a second support rod symmetrically distributed on both sides. The bottom ends of the first support rod and the second support rod are movably connected by a clamping mechanism. The top ends of both the first support rod and the second support rod are provided with arc-shaped ball bearing plates. The first support rod and the second support rod clamp the overhead pipe through the arc-shaped ball bearing plates. Multiple universal ball bearings are arranged in an array on the side of the arc-shaped ball bearing plates closest to the overhead pipe. Hooks are provided on both the first support rod and the second support rod.

[0005] Furthermore, the side of the arc-shaped ball bearing plate away from the universal ball bearings is rotatably connected to the first and second support rods via a damping pivot.

[0006] Furthermore, both the first and second support rods are equipped with natural gas sensors and buzzers, and the natural gas sensors and buzzers are electrically connected through the same control circuit.

[0007] Furthermore, multiple colored lights are installed on the sides of the first and second support poles away from the overhead pipe; the colored lights are electrically connected to the control circuit.

[0008] Furthermore, the clamping mechanism includes a screw and a handwheel. One end of the screw passes through the first support rod and the second support rod in sequence. The side of the second support rod away from the first support rod is provided with a handwheel that is threadedly connected to the screw.

[0009] Furthermore, the handwheel is provided with multiple evenly spaced positioning holes in the circumferential direction.

[0010] Furthermore, a spring is provided circumferentially on the portion of the screw located between the first and second supports.

[0011] Furthermore, the bottom ends of the first and second support rods are equipped with detachable guide rods. One end of the guide rod is screwed into the first support rod, and the other end passes through a through hole on the second support rod.

[0012] Compared with the prior art, the advantages of this utility model are as follows: by adjusting the distance between the first support rod and the second support rod through the clamping mechanism, the arc-shaped ball plates on the first support rod and the second support rod clamp the overhead pipe; by attaching a traction rope to the hook, the inspector can control the device to move along the overhead pipe from the ground and monitor the entire length of the overhead pipe, which not only ensures that the inspector does not have to climb to a height to work, but also can accurately determine the location of the leak in the overhead pipe. Attached Figure Description

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a schematic diagram of the assembly of the main body of this utility model and the overhead pipe;

[0015] Figure 2 This is a schematic diagram of the overall design of this utility model;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0017] The components are: 1. Overhead pipe; 2. Main body; 21. First support rod; 22. Second support rod; 23. Arc-shaped ball bearing plate; 24. Clamping mechanism; 25. Hook; 26. Buzzer; 27. Colored light; 28. Natural gas sensor; 221. Through hole; 231. Damping shaft; 232. Universal ball bearing; 241. Screw; 242. Handwheel; 243. Positioning hole; 244. Spring; 245. Guide rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] The specific embodiments of this utility model will now be described with reference to the accompanying drawings:

[0020] like Figures 1-3 As shown, a device for detecting leaks in overhead pipes includes a first support rod 21 and a second support rod 22 symmetrically distributed on both sides. The bottom ends of the first support rod 21 and the second support rod 22 are movably connected by a clamping mechanism 24, and the top ends of both the first support rod 21 and the second support rod 22 are provided with arc-shaped ball bearing plates 23. The distance between the first support rod 21 and the second support rod 22 is adjusted by the clamping mechanism 24 to stably clamp the overhead pipe 1 with the arc-shaped ball bearing plates 23.

[0021] The clamping mechanism 24 includes a screw 241 and a handwheel 242. One end of the screw 241 passes through a first support rod 21 and a second support rod 22 in sequence. The side of the second support rod 22 away from the first support rod 21 has a handwheel 242 threadedly connected to the screw 241. By rotating the handwheel 242, the distance between the first support rod 21 and the second support rod 22 is adjusted. A spring 244 is provided circumferentially on the portion of the screw 241 located between the first support rod 21 and the second support rod 22. When the spring 244 is compressed, the second support rod 22 continuously applies an outward force to the handwheel 242, increasing the axial stress on the screw 241, increasing the friction of the threaded connection between the handwheel 242 and the screw 241, and improving the stability of the assembly between the handwheel 242 and the screw 241. The handwheel 242 has multiple evenly spaced positioning holes 243 circumferentially. By adding an external lever, one end of which is inserted into the positioning hole 243, the torque on the handwheel 242 is increased using the lever principle, further reducing the distance between the first support rod 21 and the second support rod 22, and increasing the overall clamping force of the device on the overhead pipe 1. The bottom ends of the first support rod 21 and the second support rod 22 are equipped with detachable guide rods 245. The guide rods 245 allow for quick and symmetrical positioning of the first and second support rods 22, improving the efficiency of device assembly. One end of the guide rod 245 is screwed into the first support rod 21, and the other end passes through the through hole 221 on the second support rod 22. As the distance between the first support rod 21 and the second support rod 22 decreases, one end of the guide rod 245 gradually protrudes from the through hole 221. The detachable guide rod 245 facilitates disassembly of the device, reducing the overall space occupied by the device and making it easier to store.

[0022] The arc-shaped ball bearing plate 23 is made of a high-molecular material such as polyethylene or propylene, which combines rigidity and toughness, and the curvature of the arc-shaped ball bearing plate 23 is greater than that of a typical overhead pipe 1. When the distance between the first support rod 21 and the second support rod 22 decreases, an external force is applied to the arc-shaped ball bearing plate 23, causing it to deform to fit the overhead pipe 1 of different sizes. Multiple universal balls 232 are arrayed on the side of the arc-shaped ball bearing plate 23 closest to the overhead pipe 1. The arc-shaped ball bearing plate 23 makes rolling contact with the overhead pipe 1 through the universal balls 232, allowing the entire device to rotate circumferentially along the overhead pipe 1 or move along the length of the overhead pipe 1. Hooks 25 are provided on both the first support rod 21 and the second support rod 22; one end of the traction rope is tied to the hook 25, and the inspector pulls the other end of the traction rope from the ground, thus guiding the entire device to move on the overhead pipe 1. The side of the arc-shaped ball bearing plate 23 away from the universal ball bearing 232 is rotatably connected to the first support rod 21 and the second support rod 22 via the damping shaft 231. The relative angle between the arc-shaped ball bearing plates 23 can be adjusted by the damping shaft 231, so that the arc-shaped ball bearing plates 23 can stably clamp the overhead pipe 1.

[0023] Both the first support rod 21 and the second support rod 22 are equipped with natural gas sensors 28 and buzzers 26, which are electrically connected via the same control circuit. When the entire device moves along the overhead pipe 1, the natural gas sensor 28 detects the concentration of natural gas in the air and transmits the signal to the buzzer 26 via the control circuit. The rhythm of the sound emitted by the buzzer 26 is proportional to the detected concentration of natural gas. Multiple colored lights 27 are installed on the sides of the first support rod 21 and the second support rod 22 away from the overhead pipe 1, and these lights are electrically connected to the control circuit. The flashing rhythm of the colored lights 27 is proportional to the detected concentration of natural gas. The entire device simultaneously transmits the detection status signal to the operator via both sound and optical signals.

[0024] The working principle of this utility model is as follows: The handwheel 242 is rotated to adjust the distance between the first support rod 21 and the second support rod 22, causing the arc-shaped ball bearing plate 23 to clamp the overhead pipe 1. A person on the ground guides the entire device to move along the overhead pipe 1 using a traction rope. The natural gas sensor 28 on the device detects the concentration of natural gas in the air, and the buzzer 26 and colored lights 27 send information about the detection status to the inspector.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "upper," "lower," "left," "right," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A device for detecting leaks in overhead pipes, characterized in that: It includes a first support rod (21) and a second support rod (22) symmetrically distributed on the left and right sides; the bottom ends of the first support rod (21) and the second support rod (22) are movably connected by a clamping mechanism (24); the top ends of the first support rod (21) and the second support rod (22) are provided with arc-shaped ball bearing plates (23); the first support rod (21) and the second support rod (22) clamp the overhead pipe through the arc-shaped ball bearing plates (23); the arc-shaped ball bearing plates (23) have multiple universal balls (232) arranged in an array on the side of the overhead pipe (1) close to the overhead pipe (1); the first support rod (21) and the second support rod (22) are both provided with hooks (25).

2. The device for detecting leaks in overhead pipes according to claim 1, characterized in that: The side of the arc-shaped ball bearing plate (23) away from the universal ball bearing (232) is rotatably connected to the first support rod (21) and the second support rod (22) via a damping pivot (231).

3. The device for detecting leaks in overhead pipes according to claim 1, characterized in that: Both the first support rod (21) and the second support rod (22) are equipped with a natural gas sensor (28) and a buzzer (26), and the natural gas sensor (28) and the buzzer (26) are electrically connected through the same control circuit.

4. The device for detecting leaks in overhead pipes according to claim 3, characterized in that: Multiple colored lights (27) are provided on the side of the first support rod (21) and the second support rod (22) away from the overhead pipe (1); the colored lights (27) are electrically connected to the control circuit.

5. The device for detecting leaks in overhead pipes according to claim 1, characterized in that: The clamping mechanism (24) includes a screw (241) and a handwheel (242); one end of the screw (241) passes through the first support rod (21) and the second support rod (22) in sequence; the second support rod (22) has the handwheel (242) threadedly connected to the screw (241) on one side away from the first support rod (21).

6. The device for detecting leaks in overhead pipes according to claim 5, characterized in that: The handwheel (242) is provided with a plurality of evenly spaced positioning holes (243) in the circumferential direction.

7. The device for detecting leaks in overhead pipes according to claim 5, characterized in that: A spring (244) is provided circumferentially on the portion of the screw (241) located between the first support rod (21) and the second support rod (22).

8. The device for detecting leaks in overhead pipes according to claim 1, characterized in that: The bottom ends of the first support rod (21) and the second support rod (22) are provided with detachable guide rods (245); one end of the guide rod (245) is screwed into the first support rod (21), and the other end passes through the through hole (221) on the second support rod (22).

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