Pipeline defect detection equipment and method

Abstract

The invention belongs to the technical field of pipeline detection, and particularly discloses pipeline defect detection equipment and method.The pipeline defect detection equipment comprises three sets of connecting pipes, three sets of discs are fixedly arranged on the three sets of connecting pipes, a plurality of sets of fixing rods are fixedly arranged among the three sets of discs, and supporting assemblies are arranged on the inner sides of the three sets of discs; driving assemblies are arranged on the inner sides of the three connecting pipes, a detection head is fixedly installed at the end, close to one disc, of the three discs, each supporting assembly comprises a rotating cavity formed in the position, close to one side, of the interior of the corresponding disc, a round frame is movably arranged on the inner side of each rotating cavity, and a round pipe is fixedly arranged in the center of each round frame; a protruding block is fixedly arranged on the inner wall of the round pipe. Through overall cooperative use, the three supporting assemblies are unfolded and folded one by one, and the supporting structure can move over under the condition of no contact, so that direct contact with defect positions is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline detection, and specifically discloses a pipeline defect detection device and method. Background Art

[0002] With the continuous acceleration of urbanization, the urban population has increased significantly, the number and length of urban drainage and sewage pipes have increased sharply, and urban engineering environmental problems caused by pipeline defects have become prominent.

[0003] For example, the public document CN117368316A discloses an ultrasonic detection device for pipeline defects, which includes a cage-shaped frame, an AGV driving wheel, and a controller. A pair of cameras are also installed on the frame, and the pair of cameras are respectively located at the front end and the rear end of the frame in the direction of travel. An ultrasonic probe is also installed on the frame, and the ultrasonic probe is located at the rear end of the frame in the direction of travel. A battery is installed in the frame, and the battery is used to provide power to electrical components. A fixed cylinder is fixed on the frame along its radial direction, and a support leg is inserted into the fixed cylinder. A compression spring is also installed in the fixed cylinder, and the support leg presses the compression spring. The beneficial effects of the present invention are: the AGV driving wheel and the compression spring, etc., which are arranged circumferentially on the cage-shaped frame, make the detection device always abut against the inside of the pipeline, effectively prevent the detection device from tipping over, and reduce the probability of failure of the detection device. At the same time, the AGV driving wheel that can move along the radial direction of the frame enables the detection device to adapt to pipelines of different models, and has a wide range of applications.

[0004] The device is supported on the inside of the pipeline by three sets of driving wheels. When it moves toward the inside of the pipeline, if the position of the pipeline defect corresponds to the trajectory of the driving wheel movement, the position of the pipeline defect will be relatively unstable and fragile. Direct contact with it cannot guarantee whether it will cause damage again, which reduces the safety of the detection work. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a pipeline defect detection device and method.

[0006] In order to achieve the above purpose, the present invention provides a pipeline defect detection device, including three groups of connecting pipes, three groups of discs are fixedly arranged on the three groups of connecting pipes, a plurality of groups of fixing rods are fixedly arranged between the three groups of discs, the inner sides of the three groups of discs are provided with support assemblies, the inner sides of the three groups of connecting pipes are provided with drive assemblies, one end of the three groups of discs close to one group is fixedly installed with a detection head, the support assembly includes a rotating cavity arranged at a position near one side of the inner side of the disc, a circular frame is movably arranged on the inner side of the rotating cavity, a circular tube is fixedly arranged at the center position of the circular frame, and the circular tube is fixedly arranged at the center position of the circular tube. A bulge is fixedly provided on the inner wall of the tube, four groups of inclined openings are opened on the inner side of the circular frame, four groups of movable openings are opened inside the circular frame near the outer sides of the inclined openings, two groups of slide rails are fixedly provided on the inner wall of the disc near one side of the rotating cavity, slide bars are slidably provided on the inner sides of the two groups of slide rails, driving blocks are fixedly provided on one end of the four groups of slide bars near the rotating cavity, transmission rods are rotatably provided inside the four groups of slide bars, wheel frames are movably provided at the lower ends of the four groups of driving blocks, rollers are rotatably provided on the inner side of the wheel frames, and a motor 1 is fixedly provided at the rear end of the wheel frames.

[0007] In the above technical solution, preferably, long gears are fixedly provided on the upper ends of the four groups of transmission rods, a fixing ring is fixedly provided on the inner wall of the side of the disc away from the rotating chamber, a gear ring is rotatably provided on the outer side of the fixing ring, a side gear is fixedly provided at one end of the gear ring near the edge, a driving gear is movably provided on the lower side of the gear ring, a round rod is fixedly provided at the center position of the three groups of driving gears, and a motor 2 is fixedly provided at one end of one of the three groups of discs.

[0008] In the above technical scheme, preferably, the driving assembly includes a driving rod 1 movably arranged in a group of connecting tubes and a disc, a driving rod 2 is fixedly arranged at one end of the driving rod 1, a driving rod 3 is fixedly arranged at one end of the driving rod 2, four groups of interconnected guide grooves 1 are opened on the driving rod 1, four groups of interconnected guide grooves 2 are opened on the driving rod 2, and four groups of interconnected guide grooves 3 are opened on the driving rod 3, and the corresponding guide grooves 1, 2 and 3 on the driving rod 1, driving rod 2 and driving rod 3 are all provided with interconnected supporting grooves, one end of the driving rod 3 is fixedly arranged with a threaded rod, four groups of sliding grooves are opened on the outer side of the threaded rod, a group of the three groups of connecting tubes close to the threaded rod is rotatably arranged on the outer side, and a fixed gear is fixedly arranged on one end of the rotating sleeve, and a group of the three groups of connecting tubes close to the threaded rod is fixedly arranged on the upper end of a support seat, a motor 3 is fixedly installed on the support seat, and a transmission gear is fixedly connected to the outer side of the rotating shaft of the motor 3.

[0009] In the above technical solution, preferably, the round tube passes through the interior of the disc to the connecting tube, the protrusion is inserted into the lower interior of the supporting groove, the protrusion is inclined, the driving block is located inside the inclined mouth, the upper and lower ends of the transmission rod are respectively fixedly connected to the wheel frame and the long gear, and the roller rotating shaft is fixedly connected to the rotating shaft of the motor.

[0010] In the above technical solution, preferably, the long gear is meshed with the side gear, and the gear ring is meshed with the driving gear.

[0011] In the above technical solution, the round rod passes through the inside of the three groups of discs and is fixedly connected to the second rotating shaft of the motor, and the round rod passes through the inside of the movable opening.

[0012] In the above technical solution, preferably, the drive rod 1, drive rod 2, drive rod 3 and threaded rod are an integrated structure, and the drive rod 1, drive rod 2 and drive rod 3 are respectively movably arranged on the inner sides of the corresponding three groups of connecting pipes and discs, and the guide groove 1, guide groove 2 and guide groove 3 have the same length.

[0013] In the above technical solution, the slide groove on the threaded rod and the connecting pipe are slidably arranged, the fixed gear and the threaded rod are threadedly connected, and the fixed gear and the transmission gear are meshed.

[0014] A pipeline defect detection method is also provided, which is used to operate a pipeline defect detection device, comprising the following steps: S1: Motor 3 controls the movement of driving rod 1, driving rod 2, and driving rod 3, so that the three groups of support components are unfolded and retracted one by one. In the case of no contact, the support structure can step over the defective position; S2: Driven by the drive assembly, the four sets of drive blocks will be pushed by the inclined opening in the round frame, respectively along the two sets of slide rails, and the four sets of rollers will be unfolded. The motor drives the rollers to rotate, which can drive the whole to move in the pipeline; S3: Motor 2 controls the internal gear ring and side gear to rotate, and the rotation of the side gear drives the four sets of long gears to rotate, causing the connected transmission rod, wheel frame, and roller to rotate ninety degrees, so that the equipment can rotate horizontally in the pipeline to adjust the position of the supporting structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. When in use, put one end of the detection head into the pipe, and drive the transmission gear to rotate through the motor 3, drive the meshing fixed gear and the rotating sleeve to rotate, so that the threaded rod connected by thread slides partially inward along a group of connected connecting pipes, and the supporting grooves on the driving rod 1, driving rod 2, and driving rod 3 respectively push the three groups of protrusions on the inner side, so that the connected round pipe and round frame rotate on the disc, so as to achieve the purpose of driving the three groups of supporting components.

[0016] 2. When facing longer defects and cracks, the threaded rod is driven to move inward by motor 3. At this time, the three groups of protrusions enter the inner sides of guide groove 1, guide groove 2, and guide groove 3 respectively. When entering guide groove 1, guide groove 1 will push the protrusion and the round frame to rotate in the opposite direction, and the four groups of rollers will be retracted. The middle and rear guide grooves 2 and 3 are set horizontally, and the corresponding four groups of rollers remain stationary. At this time, only the four groups of rollers on the front side are retracted, and the motor 1 on the rear side drives the rollers to move forward as a whole, so that the four groups of rollers on the front side pass the defective position, and then the threaded rod is driven inward by motor 3. The first part moves, at this time, guide groove one pushes the protrusion and the round frame to rotate again, and the four groups of rollers are deployed to support, and the middle guide groove two will push the protrusion and the round frame to rotate and retract the four groups of rollers. The rear guide groove three is set to be longer horizontally and does not move again. Similarly, the movement is controlled by motor three, the four middle groups of rollers are deployed to support, and the four rear groups of rollers are retracted, so that the three groups of support components are deployed and retracted one by one. In the case of no contact, the support structure can step over to avoid direct contact with the defective position, thereby improving the safety during detection. The four groups of guide grooves one, two and three can be operated multiple times.

[0017] 3. Driven by the drive assembly, the four sets of drive blocks will be pushed by the inclined opening in the round frame, and will unfold the four sets of rollers along the two sets of slide rails respectively. The motor drives the rollers to rotate, which can drive the whole to move in the pipeline, cooperate with the detection head to detect the inside of the pipeline, determine whether there are defects, and provide feedback.

[0018] 4. When facing shorter defective positions, such as potholes, local protrusions, etc., the second motor controls the driving gear and round rod to rotate, driving the internal gear ring and side gear to rotate. The rotation of the side gear will drive the four sets of long gears to rotate, so that the connected transmission rod, wheel frame, and roller rotate 90 degrees, so that the equipment can rotate horizontally in the pipeline to adjust the position of the supporting structure, thereby avoiding the defective position, and performing different control methods according to actual needs to reduce damage to the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a pipeline defect detection device proposed by the present invention; Figure 2 A schematic diagram of the internal structure of a pipeline defect detection device proposed by the present invention; Figure 3 A schematic diagram of the internal structure of a support assembly of a pipeline defect detection device proposed by the present invention; Figure 4 This is a schematic diagram of a circular frame partial cutaway structure of a pipeline defect detection device proposed by the present invention; Figure 5A schematic diagram of a partial cross-section structure of a support assembly of a pipeline defect detection device proposed by the present invention; Figure 6 Schematic diagram of the local structure of the driving component of a pipeline defect detection device proposed by the present invention Figure 1 ; Figure 7 Schematic diagram of the local structure of the driving component of a pipeline defect detection device proposed by the present invention Figure 2 ; Figure 8 A pipeline defect detection device proposed by the present invention Figure 7 Detailed structural diagram.

[0020] In the figure: 1, connecting tube; 2, disc; 3, fixing rod; 4, supporting assembly; 41, rotating cavity; 42, round frame; 43, round tube; 44, convex block; 45, inclined opening; 46, movable opening; 47, slide rail; 48, slide bar; 49, driving block; 410, transmission rod; 411, wheel frame; 412, roller; 413, motor 1; 414, long gear; 415, fixing ring; 416, gear ring; 417, side gear ; 418, driving gear; 419, round rod; 420, motor two; 5, driving assembly; 51, driving rod one; 52, driving rod two; 53, driving rod three; 54, guide groove one; 55, guide groove two; 56, guide groove three; 57, supporting groove; 58, threaded rod; 59, slide groove; 510, rotating sleeve; 511, fixed gear; 512, supporting seat; 513, motor three; 514, transmission gear; 6, detection head. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] like Figures 1 to 8A pipeline defect detection device shown in the figure comprises three groups of connecting pipes 1, three groups of discs 2 are fixedly arranged on the three groups of connecting pipes 1, a plurality of groups of fixing rods 3 are fixedly arranged between the three groups of discs 2, a support assembly 4 is arranged on the inner side of each of the three groups of discs 2, a driving assembly 5 is arranged on the inner side of the three groups of connecting pipes 1, a detection head 6 is fixedly installed on one end of one group of the three groups of discs 2, the support assembly 4 comprises a rotating cavity 41 arranged at a position near one side of the inside of the disc 2, a circular frame 42 is movably arranged on the inner side of the rotating cavity 41, a circular tube 43 is fixedly arranged at the center position of the circular frame 42, a convex block 44 is fixedly arranged on the inner wall of the circular tube 43, and the circular frame 4 2 is provided with four groups of inclined openings 45 on the inner side, four groups of movable openings 46 are provided on the inner side of the circular frame 42 near the outer side of the inclined openings 45, two groups of slide rails 47 are fixedly provided on the inner wall of the circular disc 2 near one side of the rotating cavity 41, and slide bars 48 are slidably provided on the inner sides of the two groups of slide rails 47, and driving blocks 49 are fixedly provided on one end of the four groups of slide bars 48 near the rotating cavity 41, and transmission rods 410 are rotatably provided inside the four groups of slide bars 48, and wheel frames 411 are movably provided on the lower ends of the four groups of driving blocks 49, and rollers 412 are rotatably provided on the inner side of the wheel frames 411, and a motor 413 is fixedly provided on the rear end of the wheel frames 411.

[0024] The round tube 43 passes through the inside of the disc 2 to the connecting tube 1, the protrusion 44 is inserted into the lower side of the support groove 57, the protrusion 44 is inclined, the driving block 49 is located inside the inclined opening 45, the upper and lower ends of the transmission rod 410 are fixedly connected to the wheel frame 411 and the long gear 414 respectively, and the rotating shaft of the roller 412 is fixedly connected to the rotating shaft of the motor 413.

[0025] Driven by the driving assembly 5, the four groups of driving blocks 49 will be pushed by the inclined opening 45 in the circular frame 42, and respectively unfold the four groups of rollers 412 along the two groups of slide rails 47. The rollers 412 are driven to rotate by the motor 1 413, which can drive the whole to move in the pipeline, cooperate with the detection head 6 to detect the inside of the pipeline, determine whether there is a defective location, and perform feedback.

[0026] A long gear 414 is fixedly provided on the upper ends of the four groups of transmission rods 410, a fixing ring 415 is fixedly provided on the inner wall of the side of the disc 2 away from the rotating chamber 41, a gear ring 416 is rotatably provided on the outer side of the fixing ring 415, a side gear 417 is fixedly provided at one end of the gear ring 416 near the edge, a driving gear 418 is movably provided on the lower side of the gear ring 416, a round rod 419 is fixedly provided at the center position of the three groups of driving gears 418, and a motor 2 420 is fixedly provided at one end of one of the three groups of discs 2.

[0027] The long gear 414 is meshed with the side gear 417 , the gear ring 416 is meshed with the driving gear 418 , the round rod 419 penetrates the inside of the three sets of discs 2 and is fixedly connected to the rotating shaft of the second motor 420 , and the round rod 419 passes through the inside of the movable opening 46 .

[0028] When facing shorter defective positions, such as potholes, local protrusions, etc., the motor 2 420 controls the driving gear 418 and the round rod 419 to rotate, driving the internal gear ring 416 and the side gear 417 to rotate. The rotation of the side gear 417 will drive the four sets of long gears 414 to rotate, so that the connected transmission rod 410, wheel frame 411, and roller 412 rotate ninety degrees, so that the equipment can rotate horizontally in the pipeline to adjust the position of the supporting structure, thereby avoiding the defective position, and performing different control methods according to actual needs to reduce damage to the pipeline.

[0029] The driving assembly 5 includes a driving rod 1 51 movably arranged in a group of connecting pipes 1 and a disc 2, a driving rod 2 52 being fixedly arranged at one end of the driving rod 1 51, a driving rod 3 53 being fixedly arranged at one end of the driving rod 2 52, four sets of interconnected guide grooves 1 54 being opened on the driving rod 1 51, four sets of interconnected guide grooves 2 55 being opened on the driving rod 2 52, and four sets of interconnected guide grooves 3 56 being opened on the driving rod 3 53. The corresponding guide grooves 1 54, 2 55, and 3 56 are arranged on the driving rod 1 51, the driving rod 2 52, and the driving rod 3 53. The grooves 56 are all provided with interconnected supporting grooves 57, a threaded rod 58 is fixedly provided at one end of the driving rod 3 53, four groups of sliding grooves 59 are provided on the outer side of the threaded rod 58, a rotating sleeve 510 is rotatably provided on the outer side of one group of the three connecting pipes 1 close to the threaded rod 58, a fixed gear 511 is fixedly provided on one end of the rotating sleeve 510, a support seat 512 is fixedly provided on the upper end of one group of the three connecting pipes 1 close to the threaded rod 58, a motor 3 513 is fixedly installed on the support seat 512, and a transmission gear 514 is fixedly connected to the outer side of the rotating shaft of the motor 3 513.

[0030] The driving rod 1 51, the driving rod 2 52, the driving rod 3 53, and the threaded rod 58 are an integrated structure. The driving rod 1 51, the driving rod 2, and the driving rod 3 53 are respectively movably arranged on the inner sides of the corresponding three groups of connecting pipes 1 and the disc 2. The guide groove 1 54, the guide groove 2 55, and the guide groove 3 56 have the same length. The sliding groove 59 on the threaded rod 58 is slidably arranged with the connecting pipe 1. The fixed gear 511 is threadedly connected to the threaded rod 58, and the fixed gear 511 is meshed with the transmission gear 514.

[0031] When in use, put one end of the detection head 6 into the pipeline, and drive the transmission gear 514 to rotate through the motor 3 513, drive the meshing fixed gear 511 and the rotating sleeve 510 to rotate, so that the threaded rod 58 connected by thread slides partially inward along a group of connected connecting pipes 1, and the support grooves 57 on the driving rod 1 51, the driving rod 2 52, and the driving rod 3 53 respectively push the three groups of protrusions 44 on the inner side, so that the connected round tube 43 and the round frame 42 rotate on the disc 2, and the three groups of support components are 4 realizes the purpose of driving, and in the case of longer defective cracks, the motor 3 513 drives the threaded rod 58 to move inward, and at this time, the three groups of protrusions 44 enter the inner sides of the guide groove 1 54, the guide groove 2 55, and the guide groove 3 56 respectively, and when entering the guide groove 1 54, the guide groove 1 54 will push the protrusion 44 and the round frame 42 to rotate in the opposite direction, and the four groups of rollers 412 will be retracted, and the middle and rear guide grooves 2 55 and guide grooves 3 56 are arranged horizontally, and the corresponding four groups of rollers 412 remain stationary (such as Figure 8 The middle protrusion 44 moves from right to left), at this time, only the four groups of rollers 412 on the front side are retracted, and the motor 1 413 on the rear side drives the rollers 412 to move forward as a whole, so that the four groups of rollers 412 on the front side pass the defective position, and then the motor 3 513 drives the threaded rod 58 to move inward. At this time, the guide groove 1 54 pushes the protrusion 44 and the round frame 42 to rotate again, and the four groups of rollers 412 are expanded and supported, and the middle guide groove 2 55 will push the protrusion 44 and the round frame 42 to rotate and retract. The four groups of rollers 412 and the rear guide groove three 56 are horizontally arranged to be longer and immobile again. Similarly, the movement is controlled by the motor three 513. The middle four groups of rollers 412 are unfolded for support, and the rear four groups of rollers 412 are retracted, so that the three groups of support components 4 are unfolded and retracted one by one. In the case of no contact, the support structure can step over to avoid direct contact with the defective position, thereby improving the safety during detection. The four groups of guide grooves one 54, guide groove two 55, and guide groove three 56 can be operated multiple times.

[0032] A pipeline defect detection method is also provided, which is used to operate a pipeline defect detection device, comprising the following steps: S1: The motor 3 513 controls the movement of the driving rod 1 51, the driving rod 2 52, and the driving rod 3 53, so that the three groups of support components 4 are unfolded and retracted one by one. In the case of no contact, the support structure can step over the defective position; S2: Driven by the drive assembly 5, the four groups of drive blocks 49 are pushed by the inclined opening 45 in the round frame 42, respectively along the two groups of slide rails 47, and the four groups of rollers 412 are unfolded, and the motor 1 413 drives the rollers 412 to rotate, which can drive the whole to move in the pipeline; S3: The internal gear ring 416 and the side gear 417 are controlled to rotate by the motor 2 420, and the rotation of the side gear 417 drives the four sets of long gears 414 to rotate, so that the connected transmission rod 410, wheel frame 411, and roller 412 rotate ninety degrees, so that the equipment can rotate horizontally in the pipeline to adjust the position of the supporting structure.

[0033] Working principle: When in use, put one end of the detection head 6 into the pipeline, and drive 514 to rotate through 513, drive the meshing settings 511 and 510 to rotate, so that the threaded connection 58 slides partially inward along the connected group 1, and 57 on 51, 52, and 53 respectively push the three groups 44 on the inside, so that the connected 43 and 42 rotate at 2, and the purpose of driving the three groups 4 is achieved. When facing longer defects and cracks, 513 drives 58 to move inward. At this time, the three groups 44 enter the inside of 54, 55, and 56 respectively. When entering 54, 54 will push 44 and 42 to rotate in the opposite direction, and the four groups 412 will be retracted. The middle and rear sides 55 and 56 are set horizontally, and the corresponding four groups 412 remain motionless. Figure 8The middle 44 moves from right to left". At this time, only the four groups 412 on the front side are retracted, and the rear 413 drives the 412 to move forward as a whole, so that the four groups 412 on the front side step over the defective position, and then 513 drives 58 to move inward. At this time, 54 pushes 44 and 42 to rotate again, and the four groups 412 are deployed and supported, while the middle 55 will push 44 and 42 to rotate and retract the four groups 412. The rear side 56 is set longer horizontally and does not move again. Similarly, 513 controls the movement, the middle four groups 412 are deployed and supported, and the rear four groups 412 are retracted, so that the three groups 4 are deployed and retracted one by one. In the case of no contact, the support structure can step over. Avoid direct contact with the defective position and improve the safety during detection. The four groups 54, 55, and 56 can be operated multiple times. In addition, through the drive of 5, the four groups 49 will be pushed by 45 in 42, and the four groups 412 will be unfolded along the two groups 47 respectively. 412 is driven to rotate by 413, which can drive the whole to move in the pipeline, cooperate with 6 to detect the inside of the pipeline, determine whether there is a defective position, and provide feedback. When facing shorter defective positions, such as potholes, local protrusions, etc., 418 and 419 are controlled to rotate through 420 to drive the internal 416 and 417 to rotate, and the rotation of 417 will drive The four groups 414 rotate, so that the connected 410, 411, 412 rotate ninety degrees, so that the device can rotate horizontally in the pipeline to adjust the position of the support structure, so as to avoid the defective position, and control in different ways according to actual needs to reduce the damage to the pipeline. When in use, put one end of the detection head 6 into the pipeline, and drive the transmission gear 514 to rotate through the motor three 513, drive the meshing fixed gear 511 and the rotating sleeve 510 to rotate, so that the threaded rod 58 connected by the thread slides to the local position inside along the connected group of connecting pipes 1, and the support groove 57 on the driving rod one 51, the driving rod two 52, and the driving rod three 53 The three groups of protrusions 44 on the inner side are pushed respectively to make the connected round tube 43 and round frame 42 rotate on the disc 2, so as to achieve the purpose of driving the three groups of support components 4. When facing a long defect crack, the threaded rod 58 is driven to move inward by the motor 3 513. At this time, the three groups of protrusions 44 enter the inner sides of the guide groove 1 54, the guide groove 2 55, and the guide groove 3 56 respectively. When entering the guide groove 1 54, the guide groove 1 54 will push the protrusion 44 and the round frame 42 to rotate in the opposite direction, and the four groups of rollers 412 will be retracted. The middle and rear guide grooves 2 55 and 3 56 are arranged horizontally, and the corresponding four groups of rollers 412 remain stationary (such as Figure 8The middle protrusion 44 moves from right to left), at this time, only the four groups of rollers 412 on the front side are retracted, and the motor 1 413 on the rear side drives the rollers 412 to move forward as a whole, so that the four groups of rollers 412 on the front side pass the defective position, and then the motor 3 513 drives the threaded rod 58 to move inward. At this time, the guide groove 1 54 pushes the protrusion 44 and the round frame 42 to rotate again, and the four groups of rollers 412 are expanded and supported, and the middle guide groove 2 55 will push the protrusion 44 and the round frame 42 to rotate and retract. The four groups of rollers 412 are raised, and the rear guide groove 3 56 is set to be longer horizontally and not move again. Similarly, the movement is controlled by the motor 3 513, and the middle four groups of rollers 412 are deployed to support, and the rear four groups of rollers 412 are retracted, so that the three groups of support components 4 are deployed and retracted one by one. In the case of no contact, the support structure can step over to avoid direct contact with the defective position, thereby improving the safety during detection, and the four groups of guide grooves 1 54, guide groove 2 55, and guide groove 3 56 can be operated multiple times. In addition, through the drive of the driving assembly 5, the four groups of driving blocks 49 will be pushed by the inclined opening 45 in the round frame 42, and the four groups of rollers 412 will be unfolded along the two groups of slide rails 47 respectively. The rollers 412 are driven to rotate by the motor 1 413, which can drive the whole to move in the pipeline, cooperate with the detection head 6 to detect the inside of the pipeline, determine whether there is a defective position, and perform feedback work; when facing a shorter defect position, such as a pit, a local protrusion, etc., the motor 2 420 controls the driving gear 418 and the round rod 419 to rotate, and drives the internal gear ring 416 and the side gear 417 to rotate, and the rotation of the side gear 417 will drive the four groups of long gears 414 to rotate, so that the connected transmission rod 410, the wheel frame 411, and the roller 412 rotate ninety degrees, so that the equipment can rotate horizontally in the pipeline to adjust the position of the support structure, thereby avoiding the defective position, and performing different control methods according to actual needs to reduce damage to the pipeline.

[0034] The electrical equipment in the present invention belongs to the common knowledge in the art, and its working principle is a well-known technology. The model is selected according to the actual use, so it will not be explained in detail.

[0035] In the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; it can be connected directly or indirectly through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the description of this specification, if the terms "one embodiment", "some embodiments", "specific embodiments" and the like appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A pipeline defect detection device, comprising three sets of connecting pipes (1), characterized in that: Three groups of circular discs (2) are fixedly arranged on the three groups of connecting tubes (1), a plurality of groups of fixing rods (3) are fixedly arranged between the three groups of circular discs (2), a supporting assembly (4) is arranged on the inner side of each of the three groups of circular discs (2), a driving assembly (5) is arranged on the inner side of the three groups of connecting tubes (1), a detection head (6) is fixedly installed on one end of one group of the three groups of circular discs (2), the supporting assembly (4) comprises a rotating cavity (41) arranged near one side of the inside of the circular disc (2), a circular frame (42) is movably arranged on the inner side of the rotating cavity (41), a circular tube (43) is fixedly arranged at the center position of the circular frame (42), a convex block (44) is fixedly arranged on the inner wall of the circular tube (43), and four groups of The circular frame (42) has an inclined opening (45), and four groups of movable openings (46) are provided inside the circular frame (42) near the outer side of the inclined opening (45). Two groups of slide rails (47) are fixedly provided around the inner wall of the circular disc (2) near one side of the rotating cavity (41). Slide bars (48) are slidably provided inside the two groups of slide rails (47). A driving block (49) is fixedly provided at one end of the four groups of slide bars (48) near the rotating cavity (41). A transmission rod (410) is rotatably provided inside the four groups of slide bars (48). A wheel frame (411) is movably provided at the lower end of the four groups of driving blocks (49). A roller (412) is rotatably provided inside the wheel frame (411). A motor 1 (413) is fixedly provided at the rear end of the wheel frame (411).

2. A pipeline defect detection device according to claim 1, characterized in that: A long gear (414) is fixedly provided at the upper end of each of the four groups of transmission rods (410); a fixing ring (415) is fixedly provided on the inner wall of the side of the disk (2) away from the rotating chamber (41); a gear ring (416) is rotatably provided on the outer side of the fixing ring (415); a side gear (417) is fixedly provided at one end of the gear ring (416) near the edge; a driving gear (418) is movably provided at the lower side of the gear ring (416); a round rod (419) is fixedly provided at the center position of the three groups of driving gears (418); and a second motor (420) is fixedly provided at one end of one of the three groups of disks (2).

3. A pipeline defect detection device according to claim 1, characterized in that: The driving assembly (5) comprises a driving rod 1 (51) movably arranged in a group of connecting tubes (1) and a disc (2); a driving rod 2 (52) is fixedly arranged at one end of the driving rod 1 (51); a driving rod 3 (53) is fixedly arranged at one end of the driving rod 2 (52); the driving rod 1 (51) is provided with four groups of interconnected guide grooves 1 (54); the driving rod 2 (52) is provided with four groups of interconnected guide grooves 2 (55); the driving rod 3 (53) is provided with four groups of interconnected guide grooves 3 (56); the corresponding guide grooves 1 (54), 2 (55), 3 (56) on the driving rod 1 (51), the driving rod 2 (52) and the driving rod 3 (53) are connected to each other. The three grooves (56) are each provided with a connected supporting groove (57); a threaded rod (58) is fixedly provided at one end of the driving rod (53); four groups of sliding grooves (59) are provided on the outer side of the threaded rod (58); a rotating sleeve (510) is rotatably provided on the outer side of one group of the three connecting pipes (1) close to the threaded rod (58); a fixed gear (511) is fixedly provided on one end of the rotating sleeve (510); a supporting seat (512) is fixedly provided on the upper end of one group of the three connecting pipes (1) close to the threaded rod (58); a motor (513) is fixedly mounted on the supporting seat (512); and a transmission gear (514) is fixedly connected to the outer side of the rotating shaft of the motor (513).

4. A pipeline defect detection device according to claim 3, characterized in that: The circular tube (43) penetrates the inside of the circular disc (2) to the connecting tube (1); the protrusion (44) is inserted into the lower inside of the supporting groove (57); the protrusion (44) is inclined; the driving block (49) is located inside the inclined opening (45); the upper and lower ends of the transmission rod (410) are respectively fixedly connected to the wheel frame (411) and the long gear (414); and the rotating shaft of the roller (412) is fixedly connected to the rotating shaft of the motor 1 (413).

5. The pipeline defect detection device according to claim 2, characterized in that: The long gear (414) is meshed with the side gear (417), and the gear ring (416) is meshed with the driving gear (418).

6. A pipeline defect detection device according to claim 2, characterized in that: The round rod (419) penetrates the interior of the three groups of discs (2) and is fixedly connected to the rotating shaft of the second motor (420). The round rod (419) passes through the inside of the movable opening (46).

7. The pipeline defect detection device according to claim 3, characterized in that: The driving rod 1 (51), the driving rod 2 (52), the driving rod 3 (53) and the threaded rod (58) are an integrated structure. The driving rod 1 (51), the driving rod 2 (52) and the driving rod 3 (53) are movably arranged on the inner sides of the corresponding three groups of connecting pipes (1) and the disc (2), respectively. The guide groove 1 (54), the guide groove 2 (55) and the guide groove 3 (56) have the same length.

8. The pipeline defect detection device according to claim 3, characterized in that: The slide groove (59) on the threaded rod (58) and the connecting pipe (1) are slidably arranged, the fixed gear (511) and the threaded rod (58) are threadedly connected, and the fixed gear (511) and the transmission gear (514) are meshedly arranged.

9. A pipeline defect detection method, used to operate a pipeline defect detection device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Control the movement of the driving rod 1 (51), the driving rod 2 (52) and the driving rod 3 (53) through the motor 3 (513), so that the three groups of support components (4) are unfolded and retracted one by one, and the support structure can step over the defective position without contact; S2: Driven by the drive assembly (5), the four sets of drive blocks (49) are pushed by the inclined opening (45) in the circular frame (42), respectively along the two sets of slide rails (47), and the four sets of rollers (412) are unfolded. The motor 1 (413) drives the rollers (412) to rotate, thereby driving the whole to move in the pipeline; S3: The internal gear ring (416) and the side gear (417) are controlled to rotate by the second motor (420), and the rotation of the side gear (417) drives the four sets of long gears (414) to rotate, so that the connected transmission rod (410), wheel frame (411), and roller (412) rotate ninety degrees, so that the device can rotate horizontally on the pipeline to adjust the position of the support structure.

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