Gas pipeline leakage detection device

Abstract

The utility model provides a gas pipeline leakage detection device, which belongs to the technical field of gas detection, and comprises a frame, a gas detection device and a fitting assembly, the fitting assembly comprises a fixed frame fixedly connected to the frame, a first mounting shaft is rotatably connected in the fixed frame, a driving roller is fixedly connected to the first mounting shaft, and a second mounting shaft is rotatably connected to the driving roller. A limiting groove is formed in the frame, a movable frame is slidably connected into the limiting groove, a second mounting shaft is rotatably connected into the movable frame, and a driven roller is fixedly connected to the second mounting shaft. The adjusting assembly pushes the movable frame to slide towards the fixed frame, the distance between the driving rollers and the driven rollers can be adjusted according to the diameter of a gas pipeline, then the device is fixed to the gas pipeline, and then the driving assembly drives the two driving rollers to rotate at the same time; therefore, the device can be driven to move on the gas pipeline, and leakage detection is carried out on the gas pipeline through the gas detection device.

Description

Technical Field

[0001] This utility model relates to the field of gas detection technology, and in particular to a gas pipeline leak detection device. Background Technology

[0002] With the continuous improvement of people's living standards and the full utilization of natural gas resources, natural gas pipelines are gradually becoming an increasingly important basic infrastructure in modern daily life. However, gas pipelines are prone to leakage problems due to factors such as pipeline aging, joint cracks and deformation, and non-standard modifications, posing potential safety risks to residents' daily lives and gas usage. Currently, most detection methods mainly utilize various testing instruments.

[0003] To address the aforementioned issues, a search revealed an existing patent (application number: CN202322929497.2) for a gas pipeline leak detection device. The patent describes a device that "includes a gas pipe and a detection device. A detection ring is fitted around the outer wall of the gas pipe. An air chamber is formed inside the detection ring, and an electric guide rail is installed inside the air chamber. Multiple sets of sliders are arranged on the outer wall of the electric guide rail. Each set of sliders has a suction port fixedly connected to its outer wall, and the end of the suction port extends towards the end face of the gas pipe. A suction fan is installed on the outer wall of the detection ring, and the output end of the suction fan is connected to the detection device via a connecting pipe."

[0004] When the above-mentioned device is in use, the detection ring can automatically move to perform all-round leak detection on the gas pipe. Furthermore, this detection device can also clean the outer wall of the gas pipe to prevent foreign objects from obscuring small leaks. At the same time, it solves the problem of easy omissions during manual detection, thereby improving the detection accuracy. However, its two sets of detection rings are connected by magnetic attraction. Since gas pipes come in various sizes, the two sets of detection rings can only detect one size of gas pipe when attached. Therefore, it has certain limitations in use and requires multiple replacements of the equipment to detect different pipes, increasing the cost of use. Therefore, a gas pipe leak detection device is proposed. Utility Model Content

[0005] In view of this, the present invention provides a gas pipeline leak detection device to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0006] The technical solution of this utility model is implemented as follows: it includes a frame, a gas detection device, and a bonding component. The bonding component includes a fixed frame fixedly connected to the frame, a first mounting shaft rotatably connected within the fixed frame, a drive roller fixedly connected to the first mounting shaft, a limiting groove on the frame, a movable frame slidably connected within the limiting groove, a second mounting shaft rotatably connected within the movable frame, a driven roller fixedly connected to the second mounting shaft, and an adjustment component for driving the movable frame to move within the limiting groove. The adjustment component includes a threaded rod rotatably connected within the limiting groove, and a handle fixedly connected to one end of the threaded rod.

[0007] More preferably, a mounting plate is fixedly connected to one side of the frame, and a drive assembly is provided on the mounting plate. The drive assembly includes a drive motor fixedly connected to the top of the mounting plate. A first pulley is fixedly connected to the output end of the drive motor. A transmission belt is provided on the first pulley. A second pulley is provided at the end of the transmission belt away from the first pulley. A connecting shaft is fixedly connected to the first pulley and the second pulley respectively. A driving bevel gear is fixedly connected to the connecting shaft. The driving bevel gear meshes with a driven bevel gear.

[0008] More preferably, a placement frame is fixedly connected to the top of the frame, and a frame door is hinged to the placement frame. The frame door is fixedly connected to the placement frame by a hand-tightening screw. A through groove is provided on one side of the placement frame, and an insertion groove is provided on the top of the frame. A first groove and a second groove are provided on the frame. A sliding rod is slidably connected through the first groove and the second groove. A clamping plate is fixedly connected to one end of the sliding rod, and a spring is sleeved on the sliding rod.

[0009] More preferably, a connecting wire is fixedly connected to the gas detection device, one end of the connecting wire is fixedly connected to a detection head, the connecting wire passes through an insertion slot, and the connecting wire passes through a through slot.

[0010] More preferably, the frame is U-shaped, the threaded rod passes through the frame, there are two sets of driving rollers, there are two sets of driven rollers, the fixed frame and the movable frame are symmetrically arranged, and one side of the driving roller and the driven roller is the outside of the fixed frame and the movable frame.

[0011] More preferably, the connecting shaft is rotatably connected to the frame, and the driven bevel gear is fixedly connected to the first mounting shaft, which passes through the top of the fixed frame.

[0012] In a further preferred embodiment, the hand-tightening screw is threaded onto the placement frame, the clamping plate is attached to the connecting line, the detection head is located between the fixed frame and the moving frame, one end of the spring is fixedly connected to the clamping plate, the other end of the spring is fixedly connected to the first groove, and the clamping plate slides within the first groove.

[0013] The present invention has the following advantages due to the adoption of the above technical solution:

[0014] I. This utility model uses an adjusting component to push the moving frame to slide towards the fixed frame. The distance between the active roller and the driven roller can be adjusted according to the diameter of the gas pipeline, thereby fixing the device on the gas pipeline. Then, by driving the two sets of active rollers to rotate simultaneously through the driving component, the device can be driven to move on the gas pipeline, thereby detecting leaks in the gas pipeline through the gas detection device.

[0015] II. This utility model facilitates the installation and removal of the gas detection device by placing it in a placement frame and tightening the frame door with hand screws. Furthermore, the connection line is limited by a spring-driven clamp, ensuring the stability of the connection line when the gas pipeline moves, thereby improving the detection efficiency of the gas pipeline.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a top sectional view of the present invention;

[0021] Figure 4 For the present utility model Figure 1 Enlarged view of point A in the image;

[0022] Figure 5 This utility model Figure 3 Enlarged view of point B in the image.

[0023] Reference numerals: 1. Frame; 2. Gas detection device; 201. Connecting wire; 202. Detection head; 301. Fixing frame; 302. First mounting shaft; 303. Driving roller; 304. Threaded rod; 305. Moving frame; 306. Limiting groove; 307. Second mounting shaft; 308. Driven roller; 309. Handle; 401. Mounting plate; 402. Drive motor; 403. First pulley; 404. Transmission belt; 405. Second pulley; 406. Connecting shaft; 407. Driving bevel gear; 408. Driven bevel gear; 501. Placement frame; 502. Frame door; 503. Hand-tightening screw; 504. Through groove; 505. Insertion groove; 506. First groove; 507. Second groove; 508. Sliding rod; 509. Clamping plate; 510. Spring. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] Example:

[0027] like Figure 1-5 The present invention provides a gas pipeline leak detection device, including a frame 1, a gas detection device 2, and a bonding assembly. The bonding assembly includes a fixed frame 301 fixedly connected to the frame 1, a first mounting shaft 302 rotatably connected inside the fixed frame 301, a drive roller 303 fixedly connected to the first mounting shaft 302, a limiting groove 306 provided on the frame 1, a movable frame 305 slidably connected inside the limiting groove 306, a second mounting shaft 307 rotatably connected inside the movable frame 305, a driven roller 308 fixedly connected to the second mounting shaft 307, and an adjustment assembly for driving the movable frame 305 to move inside the limiting groove 306. The adjustment assembly includes a threaded rod 304 rotatably connected inside the limiting groove 306, a handle 309 fixedly connected to one end of the threaded rod 304, two sets of drive rollers 303 and two sets of driven rollers 308 having the same size and being symmetrically arranged, the fixed frame 301 being made of rubber, and the handle 309 being located on the outside of the frame 1.

[0028] In a preferred embodiment, a mounting plate 401 is fixedly connected to one side of the frame 1. A drive assembly is mounted on the mounting plate 401, including a drive motor 402 fixedly connected to the top of the mounting plate 401. A first pulley 403 is fixedly connected to the output end of the drive motor 402. A transmission belt 404 is mounted on the first pulley 403. A second pulley 405 is mounted at the end of the transmission belt 404 away from the first pulley 403. A connecting shaft 406 is fixedly connected to both the first pulley 403 and the second pulley 405. A driving bevel gear 407 is fixedly connected to the connecting shaft 406, and a driven bevel gear 408 meshes with the driving bevel gear 407. A placement frame 501 is fixedly connected to the top of the frame 1, and the placement frame 501 is hinged to... A frame door 502 is fixedly connected to a placement frame 501 by a hand-tightening screw 503. A through groove 504 is provided on one side of the placement frame 501. An insertion groove 505 is provided on the top of the frame 1. A first groove 506 and a second groove 507 are provided on the frame 1. A sliding rod 508 is slidably connected through the first groove 506 and the second groove 507. A clamping plate 509 is fixedly connected to one end of the sliding rod 508. A spring 510 is sleeved on the sliding rod 508. A connecting wire 201 is fixedly connected to the gas detection device 2. A detection head 202 is fixedly connected to one end of the connecting wire 201. The connecting wire 201 passes through the insertion groove 505 and the through groove 504. A driven bevel gear 408 is located above the fixed frame 301.

[0029] In a preferred embodiment, the frame 1 is U-shaped, with a threaded rod 304 penetrating the frame 1. Two sets of driving rollers 303 and two sets of driven rollers 308 are provided. The fixed frame 301 and the movable frame 305 are symmetrically arranged, with one side of each of the driving rollers 303 and driven rollers 308 being the outer side of the fixed frame 301 and the movable frame 305. A connecting shaft 406 is rotatably connected to the frame 1, and the driven bevel gear 408 is fixedly connected to the first mounting shaft 302, which penetrates the fixed frame 301. At the top of frame 1, a hand-tightening screw 503 is threaded onto the placement frame 501. A clamping plate 509 is attached to the connecting line 201. The detection head 202 is located between the fixed frame 301 and the moving frame 305. One end of the spring 510 is fixedly connected to the clamping plate 509, and the other end of the spring 510 is fixedly connected to the first groove 506. The clamping plate 509 slides in the first groove 506. The top of the sliding rod 508 is higher than the top of frame 1. The sliding rod 508 is L-shaped. The middle part of the frame door 502 is made of transparent material.

[0030] In operation, the worker can use the gas detection device 2, connected by the connecting wire 201 and the detection head 202, to move along the gas pipeline for leak detection. When detecting pipelines at high locations or with long lengths, the gas detection device 2 is first placed in the placement frame 501, with the connecting wire 201 passing through the insertion slot 505. Then, the frame door 502 is fixed to the placement frame 501 by tightening the screw 503. Next, the sliding rod 508 is pulled to move the clamping plate 509 towards the second groove 507 and compress the spring 510. Then, the connecting wire 201 and the detection head 202 are inserted into the insertion slot 505. After releasing the sliding rod 508, the clamping plate 509 is reset under the action of the spring 510, clamping the connecting wire 201. The frame 1 is then secured. The device is fitted onto the pipeline, with two sets of driving rollers 303 adhering to the pipeline. Then, the handle 309 is manually turned to rotate the threaded rod 304, pushing the moving frame 305 to slide towards the fixed frame 301 within the limiting groove 306 until the two sets of driven rollers 308 are adhering to the gas pipeline. The drive motor 402 is then started to rotate the first pulley 403, which in turn rotates the second pulley 405 via the transmission belt 404. At this time, the first pulley 403 and the second pulley 405 drive the connecting shaft 406 to rotate, which in turn drives the driven bevel gear 408 to rotate the first mounting shaft 302 via the driving bevel gear 407. The first mounting shaft 302 then drives the driving rollers 303 to rotate, thus propelling the device along the gas pipeline to detect leaks.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A gas pipeline leak detection device comprising a frame (1), a gas detection device (2), a fitting assembly, characterized in that: The fitting assembly includes a fixed frame (301) fixedly connected to the frame (1), a first mounting shaft (302) rotatably connected inside the fixed frame (301), a drive roller (303) fixedly connected to the first mounting shaft (302), a limiting groove (306) provided on the frame (1), a moving frame (305) slidably connected inside the limiting groove (306), a second mounting shaft (307) rotatably connected inside the moving frame (305), a driven roller (308) fixedly connected to the second mounting shaft (307), and an adjustment assembly for driving the moving frame (305) to move inside the limiting groove (306). The adjustment assembly includes a threaded rod (304) rotatably connected inside the limiting groove (306), and a handle (309) fixedly connected to one end of the threaded rod (304).

2. A gas pipeline leak detection apparatus according to claim 1, characterised in that: A mounting plate (401) is fixedly connected to one side of the frame (1). A drive assembly is provided on the mounting plate (401). The drive assembly includes a drive motor (402) fixedly connected to the top of the mounting plate (401). A first pulley (403) is fixedly connected to the output end of the drive motor (402). A transmission belt (404) is provided on the first pulley (403). A second pulley (405) is provided at the end of the transmission belt (404) away from the first pulley (403). A connecting shaft (406) is fixedly connected to the first pulley (403) and the second pulley (405). A driving bevel gear (407) is fixedly connected to the connecting shaft (406). The driving bevel gear (407) meshes with a driven bevel gear (408).

3. A gas pipeline leak detection apparatus according to claim 2, wherein: A placement frame (501) is fixedly connected to the top of the frame (1). A frame door (502) is hinged to the placement frame (501). The frame door (502) is fixedly connected to the placement frame (501) by a hand-tightening screw (503). A through groove (504) is provided on one side of the placement frame (501). An insertion groove (505) is provided on the top of the frame (1). A first groove (506) is provided on the frame (1). A second groove (507) is provided on the frame (1). A sliding rod (508) is slidably connected through the first groove (506) and the second groove (507). A clamping plate (509) is fixedly connected to one end of the sliding rod (508). A spring (510) is sleeved on the sliding rod (508).

4. A gas pipeline leak detection apparatus according to claim 3, wherein: A connecting wire (201) is fixedly connected to the gas detection device (2). A detection head (202) is fixedly connected to one end of the connecting wire (201). The connecting wire (201) passes through the insertion slot (505) and the connecting wire (201) passes through the through slot (504).

5. A gas pipeline leak detection apparatus as claimed in claim 4, wherein: The frame (1) is U-shaped, the threaded rod (304) passes through the frame (1), there are two sets of driving rollers (303) and two sets of driven rollers (308), the fixed frame (301) and the moving frame (305) are symmetrically arranged, and one side of the driving roller (303) and the driven roller (308) is the outside of the fixed frame (301) and the moving frame (305).

6. A gas pipeline leak detection apparatus according to claim 5, wherein: The connecting shaft (406) is rotatably connected to the frame (1), and the driven bevel gear (408) is fixedly connected to the first mounting shaft (302), which passes through the top of the fixed frame (301).

7. A gas pipeline leak detection apparatus according to claim 6, wherein: The hand-tightening screw (503) is threaded onto the placement frame (501), the clamping plate (509) is attached to the connecting line (201), the detection head (202) is located between the fixed frame (301) and the moving frame (305), one end of the spring (510) is fixedly connected to the clamping plate (509), the other end of the spring (510) is fixedly connected to the first groove (506), and the clamping plate (509) slides in the first groove (506).

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