Pipeline crawler for pipeline weld joint corrosion prevention detection

Abstract

The utility model discloses a pipeline crawl device for pipeline weld joint anti-corrosion detection, and relates to the technical field of pipeline crawl devices, the pipeline crawl device for pipeline weld joint anti-corrosion detection comprises a main body, and a cleaning assembly is arranged on the left side in the main body; a monitoring assembly is arranged on the right side of the outer surface of the body. A detector is fixedly mounted at the right end of the main body; four sliding grooves are uniformly formed in the outer surface of the main body; cross-shaped fixing blocks are fixedly arranged in the four sliding grooves, and a first motor is fixedly installed on the right side of the interior of the main body through a fixing plate. A bidirectional threaded rod is fixedly mounted on an output shaft of the first motor; the two-way threaded rod is rotationally connected with the cross-shaped fixing block; a two-way threaded rod, a moving block, a rotating shaft, a first connecting rod, a second connecting rod and a cross-shaped fixing block are arranged; the first connecting rod, the second connecting rod and the rolling wheel are stored in the corresponding sliding grooves; and therefore, the crawler is suitable for the interior of a pipeline with a small pipe diameter, and the applicability of the crawler is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline crawlers, in particular to a pipeline crawler for pipeline weld anti-corrosion detection. Background Art

[0002] Pipeline crawlers are used for defect inspection and repair of natural gas pipelines, oil pipelines, urban water supply and drainage pipelines, tap water pipelines and other pipelines. They are essential equipment for pipeline maintenance.

[0003] A novel pipeline detection crawler disclosed in Chinese patent CN216590584U includes a main body, four first electric telescopic rods are installed on the surface of the main body, a connecting seat is installed at one end of the first electric telescopic rod, and moving wheels are symmetrically arranged inside the connecting seat. By installing the four first electric telescopic rods on the main body, when the first electric telescopic rods are started, the main body can drive the detector to the center of the pipeline, and also prevent the device from tipping over due to an error in the moving direction, thereby ensuring the normal detection work of the device.

[0004] The above-mentioned existing crawler has the following problems when in use: the above-mentioned crawler body drives the moving wheels to extend and retract to contact the inner wall of the pipeline through four first electric telescopic rods fixedly installed on its outer surface, thereby realizing movement in the pipeline, and its first electric telescopic rod is fixedly set on the outer surface of the main body, resulting in an increase in the overall volume of the crawler, which cannot be applied to pipelines with smaller diameters; and the telescopic range of the electric telescopic rod is small, resulting in low applicability of the existing crawler.

[0005] In order to solve the above problems, the utility model proposes a pipeline crawler for pipeline weld anti-corrosion detection. Utility Model Content

[0006] In order to solve the problems existing in the background technology, the utility model proposes a pipeline crawler for pipeline weld anti-corrosion detection.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipeline crawler for pipeline weld anti-corrosion detection, comprising a main body, a cleaning component is arranged on the left side of the interior of the main body; a monitoring component is arranged on the right side of the outer surface of the main body; a detector is fixedly installed on the right end of the main body; four slide grooves are evenly opened on the outer surface of the main body; cross fixing blocks are fixedly arranged in the four slide grooves;

[0008] The first motor is fixedly installed on the right side of the main body through a fixing plate; a bidirectional threaded rod is fixedly installed on the output shaft of the first motor; the bidirectional threaded rod is rotatably connected to the cross fixing block; both ends of the outer surface of the bidirectional threaded rod are threadedly connected to the moving block; the first connecting rod is rotatably installed at the position corresponding to the slide groove on the moving block; the second connecting rod is rotatably installed at the end of the first connecting rod away from the moving block; one end of the second connecting rod is rotatably connected to the cross fixing block; the other end of the second connecting rod is rotatably provided with a roller. A driving component is provided on the left second connecting rod.

[0009] Preferably, the cross fixing block includes a fixing block and support plates fixedly installed around the fixing block; the four support plates are fixedly connected to the corresponding slide grooves; the four support plates all extend to the outside of the main body; and the fixing block is arranged in the middle position inside the main body.

[0010] Preferably, the cleaning assembly includes a second motor; the second motor is fixedly installed on the inner left side of the main body through a fixing plate; the output shaft of the second motor extends to the outside of the main body; a connecting block is fixedly installed on the output shaft of the second motor; electric telescopic rods are fixedly installed on both upper and lower ends of the connecting block; and brushes are fixedly installed on the telescopic ends of the electric telescopic rod.

[0011] Preferably, the monitoring component includes a mounting seat; the mounting seat is fixedly mounted on the top right side of the outer surface of the main body; and a camera is fixedly mounted on the upper end surface of the mounting seat.

[0012] Preferably, the moving block and the corresponding first connecting rod, the first connecting rod and the corresponding second connecting rod, and the second connecting rod and the corresponding supporting plate on the cross fixed block are all rotatably connected via a rotating shaft.

[0013] Preferably, the driving assembly includes four third motors; the four third motors are respectively fixedly mounted on the four second connecting rods on the left side; a groove is provided at one end of the second connecting rod away from the cross fixing block; the roller is rotatably mounted inside the groove; the positions of the third motors correspond to those of the rollers; and the output shaft of the third motor is fixedly connected to the roller. Beneficial Effects

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The pipeline crawler for pipeline weld anti-corrosion inspection is provided with a bidirectional threaded rod, a moving block, a rotating shaft, a first connecting rod, a second connecting rod and a cross fixing block; the first connecting rod, the second connecting rod and the roller are stored in corresponding slide grooves; thereby reducing the overall volume of the crawler, so that it is suitable for the inside of pipelines with smaller diameters, thereby improving the applicability of the crawler.

[0016] The pipeline crawler for pipeline weld anti-corrosion detection, through the cooperation of the bidirectional threaded rod and the moving block, enables the first connecting rod and the second connecting rod to be unfolded, has a large adjustment range, and is suitable for pipeline detection of various pipe diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic cross-sectional view of the interior of the main body of the utility model;

[0020] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0021] Figure numerals: 1. main body; 2. first motor; 3. slide groove; 4. bidirectional threaded rod; 5. moving block; 6. rotating shaft; 7. first connecting rod; 8. second connecting rod; 9. detector; 10. cross fixing block; 11. third motor; 12. roller; 13. second motor; 14. connecting block; 15. electric telescopic rod; 16. brush; 17. camera; 18. mounting base. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] See also Figure 1-3 The utility model provides a technical solution: a pipeline crawler for pipeline weld anti-corrosion detection, comprising a main body 1, and a cleaning component is arranged on the left side inside the main body 1.

[0024] Specifically, the cleaning assembly includes a second motor 13. The second motor 13 is fixedly mounted on the left side of the interior of the main body 1 through a fixing plate. The output shaft of the second motor 13 extends to the outside of the main body 1. A connecting block 14 is fixedly mounted on the output shaft of the second motor 13. An electric telescopic rod 15 is fixedly mounted on both upper and lower ends of the connecting block 14. A brush 16 is fixedly mounted on the telescopic end of the electric telescopic rod 15.

[0025] A monitoring component is arranged on the right side of the outer surface of the main body 1 .

[0026] Specifically, the monitoring assembly includes a mounting seat 18. The mounting seat 18 is fixedly mounted on the top right side of the outer surface of the main body 1. The upper end surface of the mounting seat 18 is fixedly mounted with a camera 17.

[0027] A detector 9 is fixedly mounted on the right end of the main body 1. Four slide grooves 3 are evenly arranged on the outer surface of the main body 1. A cross fixing block 10 is fixedly arranged in the four slide grooves 3.

[0028] It should be noted that the cross fixing block 10 includes a fixing block and support plates fixedly installed around the fixing block. The four support plates are fixedly connected to the corresponding slide grooves 3. The four support plates extend to the outside of the main body 1. The fixing block is set at the inner middle position of the main body 1.

[0029] The first motor 2 is fixedly mounted on the right side of the main body 1 through a fixing plate. A bidirectional threaded rod 4 is fixedly mounted on the output shaft of the first motor 2.

[0030] The bidirectional threaded rod 4 is rotatably connected to the fixing block on the cross fixing block 10 .

[0031] Both ends of the outer surface of the bidirectional threaded rod 4 are threadedly connected with a moving block 5. The first connecting rod 7 is rotatably installed at the position corresponding to the slide slot 3 on the moving block 5. The second connecting rod 8 is rotatably installed at one end of the first connecting rod 7 away from the moving block 5. One end of the second connecting rod 8 is rotatably connected to the corresponding support plate on the cross fixing block 10.

[0032] It should be noted that the moving block 5 and the corresponding first connecting rod 7 , the first connecting rod 7 and the corresponding second connecting rod 8 , and the second connecting rod 8 and the corresponding supporting plate on the cross fixing block 10 are all rotatably connected via the rotating shaft 6 .

[0033] The other end of the second connecting rod 8 is rotatably provided with a roller 12. The left second connecting rod 8 is provided with a driving assembly.

[0034] The driving assembly includes four third motors 11. The four third motors 11 are fixedly mounted on the four second connecting rods 8 on the left side. A groove is provided at one end of the second connecting rod 8 away from the cross fixing block 10. The roller 12 is rotatably mounted inside the groove. The positions of the third motors 11 and the roller 12 correspond. The output shaft of the third motor 11 is fixedly connected to the roller 12.

[0035] Working principle:

[0036] When starting to use, place the main body 1 in the pipe. At this time, the first connecting rod 7, the second connecting rod 8 and the roller 12 are all stored in the corresponding sliding groove 3; start the first motor 2, the first motor 2 drives the bidirectional threaded rod 4 to rotate, and the rotation of the bidirectional threaded rod 4 drives the two moving blocks 5 to move toward the cross fixed block 10 at the same time. The movement of the moving block 5 drives the first connecting rod 7 to move in the corresponding sliding groove 3, so that the first connecting rod 7 moves in a straight line. When the moving block 5 moves, it pushes the second connecting rod 8 to open outward through the first connecting rod 7, and then the second connecting rod 8 pushes the roller 12 to open outward.

[0037] When the roller 12 contacts the inner wall of the pipe, the first motor 2 is turned off, and the third motor 11 is started. The third motor 11 drives the roller 12 to rotate, thereby driving the main body 1 to move in the pipe.

[0038] When the main body 1 reaches the weld that needs to be inspected, the electric telescopic rod 15 is turned on, the electric telescopic rod 15 is extended to push the brush 16 to move, and when the brush 16 contacts the weld, the electric telescopic rod 15 is closed, and the second motor 13 is turned on. The second motor 13 drives the brush 16 to rotate through the connecting block 14 and the electric telescopic rod 15 to clean the weld.

[0039] The detector 9 detects the weld, and if the weld is corroded, the degree of corrosion of the weld can be observed through the camera 17.

[0040] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A pipeline crawler for pipeline weld anti-corrosion detection, comprising a main body (1), wherein a cleaning component is arranged on the left side of the interior of the main body (1); a monitoring component is arranged on the right side of the outer surface of the main body (1); and a detector (9) is fixedly mounted on the right end of the main body (1); the characteristics are as follows: The outer surface of the main body (1) is evenly provided with four slide grooves (3); a cross fixing block (10) is fixedly provided inside the four slide grooves (3); A first motor (2) is fixedly mounted on the right side of the interior of the main body (1) via a fixing plate; a bidirectional threaded rod (4) is fixedly mounted on the output shaft of the first motor (2); the bidirectional threaded rod (4) is rotatably connected to a cross fixing block (10); both ends of the outer surface of the bidirectional threaded rod (4) are threadedly connected to a moving block (5); a first connecting rod (7) is rotatably mounted at a position corresponding to the slide groove (3) on the moving block (5); a second connecting rod (8) is rotatably mounted on one end of the first connecting rod (7) away from the moving block (5); one end of the second connecting rod (8) is rotatably connected to the cross fixing block (10); a roller (12) is rotatably mounted on the other end of the second connecting rod (8); and a driving assembly is provided on the left second connecting rod (8).

2. The pipeline crawler for pipeline weld anti-corrosion detection according to claim 1 is characterized by: The cross fixing block (10) comprises a fixing block and support plates fixedly mounted around the fixing block; the four support plates are fixedly connected to the corresponding slide grooves (3); the four support plates all extend to the outside of the main body (1); and the fixing block is arranged at a middle position inside the main body (1).

3. The pipeline crawler for pipeline weld anti-corrosion detection according to claim 1 is characterized by: The cleaning assembly comprises a second motor (13); the second motor (13) is fixedly mounted on the left side of the interior of the main body (1) via a fixing plate; the output shaft of the second motor (13) extends to the outside of the main body (1); a connecting block (14) is fixedly mounted on the output shaft of the second motor (13); electric telescopic rods (15) are fixedly mounted on both upper and lower ends of the connecting block (14); and brushes (16) are fixedly mounted on the telescopic ends of the electric telescopic rod (15).

4. The pipeline crawler for pipeline weld anti-corrosion detection according to claim 1 is characterized in that: The monitoring component comprises a mounting seat (18); the mounting seat (18) is fixedly mounted on the top right side of the outer surface of the main body (1); and a camera (17) is fixedly mounted on the upper end surface of the mounting seat (18).

5. The pipeline crawler for pipeline weld anti-corrosion detection according to claim 1 is characterized by: The moving block (5) and the corresponding first connecting rod (7), the first connecting rod (7) and the corresponding second connecting rod (8), and the second connecting rod (8) and the corresponding supporting plate on the cross fixing block (10) are all rotatably connected via a rotating shaft (6).

6. The pipeline crawler for pipeline weld anti-corrosion detection according to claim 1 is characterized by: The driving assembly comprises four third motors (11); the four third motors (11) are respectively fixedly mounted on the four second connecting rods (8) on the left side; a groove is formed at one end of the second connecting rod (8) away from the cross fixing block (10); the roller (12) is rotatably mounted inside the groove; the positions of the third motors (11) and the roller (12) correspond; and the output shaft of the third motor (11) is fixedly connected to the roller (12).

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