Crawling device for pipeline nondestructive testing

Abstract

The utility model discloses a crawling device for pipeline nondestructive testing, which comprises a water tank, the front surface of the water tank is fixedly connected with a positive and negative motor, and the output end of the positive and negative motor is fixedly connected with a connecting block. Through the arrangement of the nozzle, the device is placed in a pipeline, the driving device is started to drive the front side driving wheel to rotate, so that the device moves towards the interior of the pipeline, and when a suspected damage crack is observed through the camera, the forward and reverse motor is started to drive the connecting block to rotate; a left electric telescopic rod is controlled to stretch out to enable a nozzle to be attached to a damaged crack, then a water pump is started to pump foam water out of a water tank through a water pumping pipe, the foam water flows into the nozzle from a spiral water pipe and is sprayed to a damaged point, at the moment, obvious foam can be seen from the corresponding position of the outer surface of the pipeline when the pipeline is damaged, and the damaged point can be accurately judged. The detection accuracy is greatly improved, the use of a user is facilitated, and the practicability of the crawling device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline detection, in particular to a crawling device for non-destructive detection of pipelines. Background Art

[0002] A pipeline is a device connected by pipes, pipe connectors and valves for transporting gas, liquid or fluid with solid particles. Due to its unique characteristics, pipelines are widely used in many industries and fields. Pipes have a wide range of uses and are mainly used in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial installations. At the same time, before the pipeline is installed, it is necessary to use a detection device to inspect the inside of the pipeline to ensure the normal and efficient use of the pipeline.

[0003] When the existing crawling device is inspecting the pipeline, it is difficult to judge through the display screen when suspected damage points or cracks appear because the interior of the pipeline is relatively dim and the lighting of the crawling device is limited. As a result, the accuracy of the detection results is greatly reduced, which is inconvenient for users and reduces the practicality of the crawling device. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present utility model is to provide a crawling device for non-destructive testing of pipelines, which has the advantage of accurate judgment and solves the problem that when the existing crawling device is testing the pipeline, it is difficult to judge through the display screen when suspected damaged points or cracks appear due to the dimness inside the pipeline and the limited lighting of the crawling device, resulting in a greatly reduced accuracy of the detection results.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a crawling device for non-destructive testing of pipelines, comprising a water tank, a forward and reverse motor fixedly connected to the front of the water tank, an output end of the forward and reverse motor fixedly connected to a connecting block, a left side of the connecting block fixedly connected to a left electric telescopic rod, a left side of the left electric telescopic rod fixedly connected to a nozzle, a fixing plate fixedly connected to the front of the water tank, a water pump fixedly connected to the top of the fixing plate, an input end of the water pump connected to a water suction pipe, the water suction pipe passes through the interior of the water tank and is connected thereto, an output end of the water pump connected to a spiral water pipe, an output end of the spiral water pipe is connected to a nozzle, a camera fixedly connected to the front of the water tank, the camera is located on the top of the forward and reverse motor, driving wheels are provided on both sides of the bottom of the water tank, and the driving wheel on the front side is driven by a driving device.

[0006] As a preferred embodiment of the present invention, a stirring motor is fixedly connected to the top of the water tank, the output end of the stirring motor passes through the interior of the water tank and is fixedly connected to a stirring rod, stirring blades are fixedly connected on both sides of the surface of the stirring rod, and a number of circular holes are opened on the surface of the stirring blades.

[0007] As a preferred embodiment of the present invention, the right side of the connecting block is fixedly connected to a right electric telescopic rod, the right side of the right electric telescopic rod is fixedly connected to a round block, and a cleaning sponge is provided on the right side of the round block.

[0008] As a preferred embodiment of the present invention, a circular plate is fixedly connected to the right side of the round block, an external thread is provided on the outer surface of the circular plate, an internal thread ring is threadedly connected to the surface of the circular plate, and the cleaning sponge is located on the right side inside the internal thread ring and fixedly connected to it.

[0009] As a preferred embodiment of the present invention, a connecting seat is provided on the top and left and right sides of the water tank, a roller is provided inside the connecting seat, and the connecting seat is rotatably connected to the roller via a pin shaft.

[0010] As a preferred embodiment of the present invention, the top of the water tank and the left and right sides thereof are fixedly connected with a first electric telescopic rod, the inner ends of the first electric telescopic rods are fixedly connected to the water tank, the outer ends of the first electric telescopic rods are fixedly connected to the connecting seat, and the bottom sides of the water tank are fixedly connected with second electric telescopic rods, and the second electric telescopic rods are fixedly connected to the driving wheels.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The utility model places the device into the pipeline through the setting of the nozzle, and starts the driving device to drive the front driving wheel to rotate, so that the device moves toward the inside of the pipeline. When a suspected damaged crack is observed through the camera, the forward and reverse motors are started to drive the connecting block to rotate, and the left electric telescopic rod is controlled to extend so that the nozzle fits the damaged crack. Then the water pump is started to extract foam water from the inside of the water tank through the suction pipe, and the foam water flows into the nozzle from the spiral water pipe and is sprayed toward the damaged point. At this time, if the pipeline is damaged, obvious foam can be seen from the corresponding position of its outer surface, so the damaged point can be accurately judged, which greatly improves the detection accuracy, facilitates the use of the user, and improves the practicality of the crawling device.

[0013] 2. The utility model is provided with a stirring motor. Since the composition of water, air and surfactant is large, the surfactant inside the water tank will produce precipitation, resulting in uneven mixing with water, thereby affecting the formation of foam. At this time, the stirring motor can be started to drive the stirring rod and the stirring blades on its surface to rotate. The rotation of the stirring blades makes the foam water mixed more evenly, and the foam sprayed from the nozzle is richer, which is more eye-catching when observed on the outer surface of the pipe, thereby shortening the confirmation time of the pipeline damage point and further improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic front view cross-sectional diagram of the structure of the utility model;

[0016] Figure 3 This is a front cross-sectional schematic diagram of the internal thread ring of the utility model structure;

[0017] Figure 4 It is a schematic top view of the structure of the utility model.

[0018] In the figure: 1. Water tank; 2. Forward and reverse motors; 3. Connecting block; 4. Left electric telescopic rod; 5. Nozzle; 6. Fixing plate; 7. Water pump; 8. Suction pipe; 9. Spiral water pipe; 10. Camera; 11. Driving wheel; 12. Stirring motor; 13. Stirring rod; 14. Stirring blade; 15. Right electric telescopic rod; 16. Round block; 17. Cleaning sponge; 18. Round plate; 19. Internal thread ring; 20. Connecting seat; 21. Roller; 22. First electric telescopic rod; 23. Second electric telescopic rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figures 1 to 4 As shown, a crawling device for non-destructive testing of pipelines includes a water tank 1, a forward and reverse motor 2 is fixedly connected to the front of the water tank 1, the output end of the forward and reverse motor 2 is fixedly connected to a connecting block 3, the left side of the connecting block 3 is fixedly connected to a left electric telescopic rod 4, the left side of the left electric telescopic rod 4 is fixedly connected to a nozzle 5, a fixing plate 6 is fixedly connected to the front of the water tank 1, the top of the fixing plate 6 is fixedly connected to a water pump 7, the input end of the water pump 7 is connected to a water pumping pipe 8, the water pumping pipe 8 passes through the interior of the water tank 1 and is connected thereto, the output end of the water pump 7 is connected to a spiral water pipe 9, the output end of the spiral water pipe 9 is connected to the nozzle 5, a camera 10 is fixedly connected to the front of the water tank 1, the camera 10 is located on the top of the forward and reverse motor 2, and driving wheels 11 are provided on both sides of the bottom of the water tank 1, and the front driving wheel 11 is driven by a driving device.

[0021] refer to Figure 1 and Figure 2 A stirring motor 12 is fixedly connected to the top of the water tank 1. The output end of the stirring motor 12 passes through the interior of the water tank 1 and is fixedly connected to a stirring rod 13. Both sides of the surface of the stirring rod 13 are fixedly connected to stirring blades 14. A plurality of circular holes are opened on the surface of the stirring blades 14.

[0022] As a technical optimization solution of the present invention, through the setting of the stirring motor 12, since the composition of water, air and surfactant, the surfactant inside the water tank 1 will produce precipitation, resulting in uneven mixing with water, thereby affecting the formation of foam. At this time, the stirring motor 12 can be started to drive the stirring rod 13 and the stirring blades 14 on its surface to rotate. The rotation of the stirring blades 14 makes the foam water mixed more evenly, and the foam sprayed from the nozzle 5 is richer, which is more eye-catching when observed on the outer surface of the pipe, thereby shortening the confirmation time of the pipe damage point and further improving the detection efficiency.

[0023] refer to Figure 1 、 Figure 3 and Figure 4 The right side of the connecting block 3 is fixedly connected to the right electric telescopic rod 15, the right side of the right electric telescopic rod 15 is fixedly connected to the round block 16, and the right side of the round block 16 is provided with a cleaning sponge 17.

[0024] As a technical optimization solution of the present invention, through the provision of the cleaning sponge 17, when the inner wall of the pipe is partially covered with dust, the forward and reverse motor 2 can be started to rotate the right electric telescopic rod 15 and the cleaning sponge 17 to that place, and the right electric telescopic rod 15 can be started to extend so that the cleaning sponge 17 fits with it, and then the forward and reverse motor 2 is controlled to rotate back and forth so that the cleaning sponge 17 wipes off the dust, and then observation can be carried out, thereby avoiding omissions during the detection process.

[0025] refer to Figure 1 、 Figure 3 and Figure 4 The right side of the round block 16 is fixedly connected to a circular plate 18, the outer surface of the circular plate 18 is provided with an external thread, and the surface of the circular plate 18 is threadedly connected to an internal thread ring 19. The cleaning sponge 17 is located on the right side inside the internal thread ring 19 and is fixedly connected to it.

[0026] As a technical optimization solution of the present invention, through the setting of the circular plate 18 and the internal thread ring 19, the cleaning sponge 17 will reduce its decontamination ability after frequent work. At this time, the internal thread ring 19 can be rotated to separate it from the circular plate 18, and then a new internal thread ring 19 and cleaning sponge 17 can be replaced to ensure its decontamination performance.

[0027] refer to Figure 1 、 Figure 2 and Figure 4 A connecting seat 20 is provided on the top and left and right sides of the water tank 1. A roller 21 is provided inside the connecting seat 20. The connecting seat 20 is rotatably connected to the roller 21 through a pin shaft.

[0028] As a technical optimization solution of the present invention, the water tank 1 is limited by the setting of the roller 21, so that the water tank 1 will not collide with the inside of the pipeline, avoiding the problem of internal damage to the pipeline affecting its service life.

[0029] refer to Figure 1 、 Figure 2 and Figure 4 The top and left and right sides of the water tank 1 are fixedly connected with a first electric telescopic rod 22, the inner ends of the first electric telescopic rod 22 are fixedly connected to the water tank 1, and the outer ends of the first electric telescopic rod 22 are fixedly connected to the connecting seat 20. The bottom sides of the water tank 1 are fixedly connected with a second electric telescopic rod 23, and the second electric telescopic rod 23 is fixedly connected to the driving wheel 11.

[0030] As a technical optimization solution of the present invention, through the arrangement of the first electric telescopic rod 22 and the second electric telescopic rod 23, when the inner diameter of the pipe is large, the first electric telescopic rod 22 and the second electric telescopic rod 23 can be started to drive the roller 21 and the driving wheel 11 to fit into the inner wall of the pipe and roll, making it more stable when moving and not colliding with the inner wall of the pipe, thereby improving the applicability of the device.

[0031] The working principle and use process of the present invention are as follows: when in use, the user first puts the device into the pipe, and then starts the first electric telescopic rod 22 and the second electric telescopic rod 23 through the remote control device to drive the roller 21 and the driving wheel 11 to fit the inner wall of the pipe and roll, and starts the stirring motor 12 to drive the stirring rod 13 and the stirring blades 14 on its surface to rotate. The rotation of the stirring blades 14 makes the foam water mix more evenly, and the foam sprayed from the nozzle 5 is richer. Then, the driving device is started to drive the front driving wheel 11 to rotate, so that the device moves toward the inside of the pipe. When a suspected damage or crack is observed on the display screen connected to the signal of the camera 10, the positive start is started. The reverse motor 2 drives the connecting block 3 to rotate, and controls the left electric telescopic rod 4 to extend so that the nozzle 5 fits the damaged crack, and then starts the water pump 7 to extract foamy water from the inside of the water tank 1 through the suction pipe 8, and flows into the nozzle 5 from the spiral water pipe 9 and sprays it to the damaged point. At this time, if the pipe is damaged, obvious foam can be seen from the corresponding position of its outer surface, so the damaged point can be accurately judged. When the inner wall of the pipe is partially covered with dust, the forward and reverse motors 2 can be started to rotate the right electric telescopic rod 15 and the cleaning sponge 17 to that place, and the right electric telescopic rod 15 can be started to extend so that the cleaning sponge 17 fits it. Then the forward and reverse motors 2 are controlled to rotate back and forth so that the cleaning sponge 17 wipes off the dust for observation.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crawling device for non-destructive testing of pipelines, comprising a water tank (1), characterized in that: The front of the water tank (1) is fixedly connected to a forward and reverse motor (2); the output end of the forward and reverse motor (2) is fixedly connected to a connecting block (3); the left side of the connecting block (3) is fixedly connected to a left electric telescopic rod (4); the left side of the left electric telescopic rod (4) is fixedly connected to a nozzle (5); the front of the water tank (1) is fixedly connected to a fixing plate (6); the top of the fixing plate (6) is fixedly connected to a water pump (7); the input end of the water pump (7) is connected to a water pump pipe (8); the water pump pipe (8) passes through the interior of the water tank (1) and is connected thereto; the output end of the water pump (7) is connected to a spiral water pipe (9); the output end of the spiral water pipe (9) is connected to the nozzle (5); the front of the water tank (1) is fixedly connected to a camera (10); the camera (10) is located on the top of the forward and reverse motor (2); driving wheels (11) are provided on both sides of the bottom of the water tank (1); the driving wheel (11) on the front side is driven by a driving device.

2. A crawling device for pipeline nondestructive testing according to claim 1, characterized in that: The top of the water tank (1) is fixedly connected to a stirring motor (12), the output end of the stirring motor (12) passes through the interior of the water tank (1) and is fixedly connected to a stirring rod (13), and stirring blades (14) are fixedly connected to both sides of the surface of the stirring rod (13), and a plurality of circular holes are opened on the surface of the stirring blades (14).

3. The crawling device for pipeline nondestructive testing according to claim 1, characterized in that: The right side of the connecting block (3) is fixedly connected to a right electric telescopic rod (15), the right side of the right electric telescopic rod (15) is fixedly connected to a round block (16), and the right side of the round block (16) is provided with a cleaning sponge (17).

4. A crawling device for pipeline nondestructive testing according to claim 3, characterized in that: The right side of the circular block (16) is fixedly connected to a circular plate (18), the outer surface of the circular plate (18) is provided with an external thread, the surface of the circular plate (18) is threadedly connected to an internal thread ring (19), and the cleaning sponge (17) is located on the right side inside the internal thread ring (19) and is fixedly connected thereto.

5. The crawling device for pipeline nondestructive testing according to claim 1, characterized in that: The top and left and right sides of the water tank (1) are both provided with a connecting seat (20), a roller (21) is provided inside the connecting seat (20), and the connecting seat (20) is rotatably connected to the roller (21) via a pin shaft.

6. The crawling device for pipeline non-destructive testing according to claim 5, characterized in that: The top and left and right sides of the water tank (1) are fixedly connected to a first electric telescopic rod (22); the inner ends of the first electric telescopic rod (22) are fixedly connected to the water tank (1); the outer ends of the first electric telescopic rod (22) are fixedly connected to the connecting seat (20); the bottom sides of the water tank (1) are fixedly connected to a second electric telescopic rod (23); and the second electric telescopic rod (23) is fixedly connected to the driving wheel (11).

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