Inspection device for natural gas long-distance pipeline

Abstract

The utility model discloses an inspection device for a natural gas long-distance pipeline, which relates to the technical field of natural gas pipeline inspection and comprises a bearing frame, a limiting frame is fixedly connected to the center of the top wall of the bearing frame, a worm gear is rotatably connected to the center of the top of the limiting frame, and the rear end of the worm gear is meshed with a worm. Adjusting mechanisms are arranged at the front end and the rear end of the contact wheel, and a partition plate is fixedly connected to the bottom wall of the front end of the bearing frame. The device is reasonable in design structure, the worm is rotated to drive the worm wheel to rotate, the worm wheel drives the contact wheel to rotate, the contact wheel drives the toothed plate to move oppositely, and the toothed plate drives the movable frame to move oppositely through the guide plate, so that the device is adjusted according to the size and the laying position of a pipeline, and the movable frame drives the fixed pipe to move through the connecting plate; the number of the natural gas detection mechanisms is increased according to detection requirements, and the automatic inspection device has the advantage of automatic inspection.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas pipeline inspection technical field, concretely is a kind of inspection device of natural gas long-distance pipeline. BACKGROUND

[0002] Natural gas is the most promising clean energy at present, with the advantages of environmental protection, energy efficiency etc., is the important energy source of national life, usually uses buried pipeline to be transported to all over the country, but due to the complex situation of ground, natural gas pipeline is caused by external environmental factors such as ground subsidence, settlement deformation and cracking etc. Geological disasters or internal factors such as factors such as long service time, resulting in the leakage of pipeline caused by the tensile, bending, shear deformation of conveying pipeline pipe body, natural gas can be leaked into the atmosphere, not only can cause resource waste, also can pollute the environment.

[0003] At present, domestic natural gas pipeline inspection mainly takes artificial inspection as the main, when inspecting long-distance pipeline, it is extremely easy to be tired to detect for a long time by hand holding monitoring instrument, needs to be monitored to each gap above pipeline during detection, workload is larger, and there are mostly fallen leaves or other sundries on ground during inspection process, need to be cleaned before realizing inspection, it is very inconvenient.For this reason, we provide the inspection device of natural gas long-distance pipeline to solve the above problems. UTILITARIAN CONTENT

[0004] I) technical problem solved

[0005] The utility model aims at making up for the deficiency of prior art, provide an inspection device of natural gas long-distance pipeline.

[0006] II) technical scheme

[0007] To realize the above-mentioned purpose, the utility model provides the following technical scheme: an inspection device of natural gas long-distance pipeline, including bearing frame, the center position of bearing frame top wall is fixedly connected with limiting support, the center position of limiting support top is rotatably connected with worm gear, the bottom of worm gear is fixedly connected with contact wheel below limiting support, the both ends of contact wheel are provided with adjusting mechanism, the bottom wall of bearing frame front end is fixedly connected with baffle, the both sides of baffle front end side wall are fixedly connected with slide rod, the outer surface of slide rod is slidably connected with buffer frame, buffer spring is sleeved on the outer surface of slide rod above buffer frame, the front end of buffer frame is fixedly connected with gas pipe, and a plurality of gas nozzles are arranged in front end of gas pipe.

[0008] Further, the support connected with external traction mechanism is arranged on the side wall of the front end of the bearing frame, the limiting support is arranged in a "T" shape, and the top wall of the limiting support is rotatably connected with the worm gear through the connecting ring.

[0009] Further, the adjusting mechanism comprises a toothed plate, the contact wheel is meshed with the toothed plate at both ends, and the top wall of the toothed plate is provided with a limiting groove meshed with the bottom of the limiting frame.

[0010] Further, the toothed plate is fixedly connected with a guide plate at one end away from the contact wheel, the top wall of the bearing frame is slidably connected with the top wall of the guide plate through the guide rail, the bottom of the guide plate is fixedly connected with a moving frame at one end away from the contact wheel, the moving frame is arranged in an "n" shape, a balance rod is fixedly connected to the inner wall of the moving frame and located inside the bearing frame, and the bearing frame is provided with a through hole meshed with the balance rod.

[0011] Further, the inner wall of the moving frame is fixedly connected with a connecting plate below the bearing frame, the top wall of the connecting plate is slidably connected with the bottom wall of the bearing frame, and a plurality of fixed tubes are arranged in an array in the connecting plate.

[0012] Further, the fixed tube is provided with a natural gas detection mechanism, the natural gas detection mechanism comprises a joint, a goose neck hose and a probe, and the bottom of the moving frame is rotatably connected with a roller at both ends.

[0013] Further, the bottom of the front end of the buffer frame is provided with a contact block, the inner wall of the buffer frame is slidably connected with the side wall of the moving frame, the top of the gas conveying pipe is connected with an external air pump through a connecting pipe, and the gas jet head is arranged at an inclined angle.

[0014] III) Beneficial effects:

[0015] Compared with the prior art, the natural gas long-distance pipeline inspection device has the following beneficial effects:

[0016] I. The utility model discloses a rotating worm drives a worm gear to rotate, the worm gear drives a contact wheel to rotate, the contact wheel drives a toothed plate to move towards each other, the toothed plate drives a moving frame to move towards each other through a guide plate, so as to realize the adjusting device according to the pipeline size and laying position, the moving frame drives a fixed tube to move through a connecting plate, the fixed tube drives a natural gas detection mechanism to move, the number of natural gas detection mechanisms is increased according to the detection requirement, the problem that the traditional mode needs to hold a monitoring instrument for a long time to monitor every gap above the pipeline, resulting in a large workload is solved, and the device has the advantages of automatic inspection.

[0017] II. The utility model discloses an external traction mechanism drives the device to move through the support at the front end of the bearing frame when running, an external air pump sends gas to a gas jet head through a gas conveying pipe, the gas jet head blows away leaves and other sundries in front of the device, ensures that there is no sundry to block the moving track of the device, solves the problem that the existing mode needs to be cleaned before inspection in the process of inspection because there are mostly fallen leaves or other sundries on the ground, and the device has the advantage of automatically cleaning the sundries on the track. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model discloses a three-axis drawing device;

[0019] Figure 2 The utility model discloses a fixed pipe schematic view;

[0020] Figure 3 The utility model discloses a buffer frame schematic view;

[0021] Figure 4 The utility model discloses a tooth plate schematic view.

[0022] In the figure: 1, bearing frame, 2, limiting frame, 3, worm wheel, 4, worm, 5, contact wheel, 6, partition, 7, slide rod, 8, buffer frame, 9, buffer spring, 10, gas pipe, 11, gas jet, 12, tooth plate, 13, guide plate, 14, moving frame, 15, balance bar, 16, connecting plate, 17, fixed pipe, 18, natural gas detection mechanism, 19, gyro wheel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts are within the protection scope of the utility model.

[0024] As Figures 1-4 The utility model provides a kind of technical solutions: a kind of natural gas long-distance pipeline's inspection device, including bearing frame 1, bearing frame 1 front end side wall is provided with the support of external traction mechanism connection, bearing frame 1 top wall center position is fixedly connected with limiting frame 2, limiting frame 2 top center position is rotatably connected with worm wheel 3, worm wheel 3 rear end is engaged with worm 4, limiting frame 2 is arranged as "T", limiting frame 2 top wall is rotatably connected by being provided with connecting ring and worm 4 left and right two ends, worm wheel 3 bottom is fixedly connected with contact wheel 5 below limiting frame 2, contact wheel 5 front and rear ends are provided with adjusting mechanism, adjusting mechanism includes tooth plate 12, contact wheel 5 front and rear ends are engaged with tooth plate 12, tooth plate 12 top wall is provided with the limiting groove of being engaged with limiting frame 2 bottom, limiting frame 2 is limited to tooth plate 12 and is guided.

[0025] The tooth plate 12 is fixedly connected with a guide plate 13 away from one end of the contact wheel 5, the top wall of the bearing frame 1 is slidably connected with the top wall of the guide plate 13 through the guide rail, the bottom of the guide plate 13 away from one end of the contact wheel 5 is fixedly connected with a moving frame 14, the moving frame 14 is arranged in an "n" shape, the inner wall of the moving frame 14 is fixedly connected with a balance bar 15 inside the bearing frame 1, and the bearing frame 1 is provided with a through hole engaged with the balance bar 15; the balance bar 15 is arranged to make the moving frame 14 move more stably.

[0026] The inner wall of the moving frame 14 is fixedly connected with a connecting plate 16 below the bearing frame 1, the top wall of the connecting plate 16 is slidably connected with the bottom wall of the bearing frame 1, a plurality of fixed pipes 17 are arranged in an array in the connecting plate 16, a natural gas detection mechanism 18 is arranged in the fixed pipe 17, the natural gas detection mechanism 18 is composed of a joint, a goose neck hose and a probe, the natural gas detection mechanism 18 is arranged to facilitate free angle adjustment, and the bottom of the moving frame 14 is rotatably connected with a roller 19 at the front end and the rear end.

[0027] The bottom wall of the front end of the bearing frame 1 is fixedly connected with a partition plate 6, the side wall of the front end of the partition plate 6 is fixedly connected with a slide rod 7 on the left side and the right side, the slide rod 7 is slidably connected with a buffer frame 8, the buffer frame 8 is provided with a contact block at the bottom of the front end, the inner wall of the buffer frame 8 is slidably connected with the side wall of the moving frame 14, the outer surface of the slide rod 7 is sleeved with a buffer spring 9 above the buffer frame 8, the partition plate 6 is fixedly connected with a gas conveying pipe 10 between the front ends, the top of the gas conveying pipe 10 is connected with an external air pump through a connecting pipe, a plurality of gas nozzles 11 are arranged in an array at the front end of the gas conveying pipe 10, the gas nozzles 11 are arranged at an inclined angle, the contact block is arranged to prevent the gas nozzles 11 from contacting the ground, an external traction mechanism drives the device to move through the support at the front end of the bearing frame 1, an external air pump supplies gas to the gas nozzles 11 through the gas conveying pipe 10, the gas nozzles 11 blow away the leaves and other sundries in front of the device, and it is ensured that there is no sundry blocking the moving track of the device.

[0028] Working principle: the natural gas long-distance pipeline inspection device in use, the rotating worm 4, worm 4 drive worm gear 3 rotation, worm gear 3 drive contact wheel 5 rotation, contact wheel 5 drive gear plate 12 move towards, gear plate 12 through the guide plate 13 drive moving frame 14 move towards, thus realize according to the pipeline size and laying position adjustment device, moving frame 14 through the connecting plate 16 drive fixed tube 17 move, fixed tube 17 drive natural gas detection mechanism 18 move, according to the detection demand increases the number of natural gas detection mechanism 18, external traction mechanism through the support of the front end of the bearing frame 1 drive device move, external air pump through the gas pipe 10 on the gas jet 11 for gas, gas jet 11 on the device in front of the leaves and other sundries blowing away, ensure that the device moving track without sundries block.

Claims

1. An inspection device for a long-distance natural gas pipeline, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to the center of the top wall of the support frame (1). The center of the top of the support frame (2) is rotatably connected to the worm gear (3). The rear end of the worm gear (3) is engaged with the worm (4). The bottom of the worm gear (3) is fixedly connected to the contact wheel (5) below the support frame (2). The front and rear ends of the contact wheel (5) are provided with adjustment mechanisms. The bottom wall of the front end of the support frame (1) is fixedly connected to the partition plate (6). The left and right sides of the front side wall of the partition plate (6) are fixedly connected to the slide rod (7). The outer surface of the slide rod (7) is slidably connected to the buffer frame (8). The outer surface of the slide rod (7) is sleeved above the buffer frame (8). The front end of the buffer frame (8) is fixedly connected to the gas supply pipe (10). The front end of the gas supply pipe (10) is arrayed with several gas nozzles (11).

2. The inspection device for a long-distance natural gas pipeline according to claim 1, characterized in that: The front side wall of the support frame (1) is provided with a bracket connected to an external traction mechanism. The limiting frame (2) is T-shaped. The top wall of the limiting frame (2) is rotatably connected to the left and right ends of the worm gear (4) by a connecting ring.

3. The inspection device for a long-distance natural gas pipeline according to claim 1, characterized in that: The adjustment mechanism includes a toothed plate (12), and the toothed plate (12) is engaged at both ends of the contact wheel (5). The top wall of the toothed plate (12) is provided with a limiting groove that engages with the bottom of the limiting frame (2).

4. The inspection device for a long-distance natural gas pipeline according to claim 3, characterized in that: A guide plate (13) is fixedly connected to the side wall of the toothed plate (12) away from the contact wheel (5). The front and rear ends of the top wall of the support frame (1) are slidably connected to the top wall of the guide plate (13) by means of guide rails. A movable frame (14) is fixedly connected to the bottom of the guide plate (13) away from the contact wheel (5). The movable frame (14) is arranged in an "n" shape. A balance bar (15) is fixedly connected to the inner wall of the movable frame (14) inside the support frame (1). A through hole that meshes with the balance bar (15) is opened inside the support frame (1).

5. The inspection device for a long-distance natural gas pipeline according to claim 4, characterized in that: The inner wall of the movable frame (14) is fixedly connected to a connecting plate (16) below the support frame (1). The top wall of the connecting plate (16) and the bottom wall of the support frame (1) are slidably connected. Several fixed tubes (17) are arranged in an array inside the connecting plate (16).

6. The inspection device for a long-distance natural gas pipeline according to claim 5, characterized in that: The fixed pipe (17) is equipped with a natural gas detection mechanism (18), which consists of a connector, a gooseneck hose and a probe. The bottom of the movable frame (14) is rotatably connected to rollers (19) at both the front and rear ends.

7. The inspection device for a long-distance natural gas pipeline according to claim 1, characterized in that: The buffer frame (8) has a contact block at the bottom of its front end. The inner wall of the buffer frame (8) and the side wall of the movable frame (14) are slidably connected. The top of the gas pipe (10) is connected to an external air pump through a connecting pipe. The gas nozzle (11) is set at an inclined angle.

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