A hydraulic engineering pipeline quality detection device

Abstract

The application relates to a water conservancy project pipeline quality detection device, which comprises walking mechanisms, a motor box, an inner wall flaw detection mechanism, a supporting assembly and an outer wall flaw detection mechanism. The walking mechanisms are in two groups, and the two groups of walking mechanisms are respectively arranged on the inner wall and the outer wall of the pipeline. The motor box comprises a first motor and a power supply. The first motor is connected with a rotating shaft. The inner wall flaw detection mechanism is connected with the rotating shaft at one end and abuts against the inner wall of the pipeline at the other end. The supporting assembly is in a plurality of groups, and the plurality of groups of supporting assemblies are arranged in a rotating center annular interval array along the center line of the rotating shaft. The two ends of the supporting assembly are respectively connected with the rotating shaft and the walking mechanism of the inner wall of the pipeline. The walking mechanism of the outer wall of the pipeline is magnetically attached to the walking mechanism of the inner wall of the pipeline. The outer wall flaw detection mechanism is connected with the walking mechanism of the outer wall of the pipeline. The water conservancy project pipeline quality detection device can simultaneously detect the inner wall and the outer wall of the pipeline, reduces manual detection, and is more convenient for detecting the pipeline.

Description

Technical Field

[0001] This invention relates to the field of pipeline quality inspection technology, specifically to a pipeline quality inspection device for water conservancy projects. Background Technology

[0002] In water conservancy engineering construction, pipeline structures are an indispensable component, widely used in various fields such as water supply and drainage. As a key infrastructure in water conservancy engineering systems, metal pipeline structures have irreplaceable engineering value in water transmission, distribution, drainage, and water transfer projects. During long-term service, metal pipelines are susceptible to structural damage such as corrosion perforation and crack propagation on their inner and outer walls due to hydraulic erosion, electrochemical corrosion, and mechanical stress. Therefore, it is necessary to inspect the inner and outer walls of the pipeline structure.

[0003] Currently, commonly used inspection methods include manual inspection and robotic inspection. Manual inspection requires operators to visually inspect the inner and outer surfaces of the pipeline to determine if there are problems such as aging, corrosion, and wear on the inner surface. Then, a flaw detector is used to inspect the inner wall of the pipeline to determine if there are internal damages such as holes and cracks. This is labor-intensive and complex. Existing robotic inspection is limited to the identification of defects on the inner wall of the pipeline. The inspection of the outer wall still requires the use of manual tapping, which makes it impossible to synchronize the inspection data. At the same time, manual inspection of the outer wall of the pipeline is time-consuming and labor-intensive. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a quality inspection device for water conservancy engineering pipelines, so as to solve the problems that the existing robot inspection is limited to the identification of defects in the inner wall of the pipeline, while the inspection of the outer wall still needs to be combined with the manual knocking inspection method, resulting in the inability to synchronize the inspection data. At the same time, the manual inspection of the outer wall of the pipeline is time-consuming and labor-intensive.

[0005] This invention is achieved through the following technical solution: A quality inspection device for water conservancy engineering pipelines includes a traveling mechanism, a motor housing, an inner wall flaw detection mechanism, a support assembly, and an outer wall flaw detection mechanism. The traveling mechanism comprises two sets, each set opposing the inner and outer walls of the pipeline. The motor housing includes a first motor and a power supply. The output end of the first motor is connected to a rotating shaft. One end of the inner wall flaw detection mechanism is connected to the rotating shaft, and the other end abuts against the inner wall of the pipeline. Multiple support assemblies are arranged in a ring-shaped, spaced array along the center line of the rotating shaft. Both ends of each support assembly are connected to the rotating shaft and the traveling mechanism on the inner wall of the pipeline, respectively. The traveling mechanism on the outer wall of the pipeline is magnetically attracted to the traveling mechanism on the inner wall. The outer wall flaw detection mechanism is connected to the traveling mechanism on the outer wall of the pipeline.

[0006] Furthermore, the rotating shaft is connected to a first bevel gear, the rotation center line of the first bevel gear is arranged along the center line of the rotating shaft, the support assembly includes a second bevel gear, a connecting part, a third bevel gear and a fourth bevel gear, the second bevel gear meshes with the first bevel gear, the two ends of the connecting part are respectively connected to the second bevel gear and the third bevel gear, the third bevel gear meshes with the fourth bevel gear; the walking mechanism includes a track wheel and a magnetic box, the fourth bevel gear is connected to a transmission rod, the transmission rod is connected to the drive wheel of the track wheel, the magnetic box is connected to the track wheel, and also includes a first support ring and a support rod, the side wall of the first support ring has multiple through holes, the multiple magnetic boxes on the inner wall of the pipe are slidably connected to the multiple through holes one by one, one end of the support rod is connected to the rotating shaft, and the other end of the support rod is connected to the inner peripheral wall of the first support ring.

[0007] Furthermore, the connecting part includes a first connecting rod, a first sleeve, and a first spring. One end of the first connecting rod is slidably fitted with the inner wall of one end of the first sleeve. The other end of the first connecting rod is connected to a second bevel gear. The other end of the first sleeve is slidably connected to the magnetic box. The first spring is located inside the first sleeve, and both ends of the first spring are respectively connected to the other end of the first connecting rod and the first end of the first sleeve.

[0008] Furthermore, the internal wall flaw detection mechanism includes a first probe, a protective shell, a second connecting rod, a second sleeve, and a second spring. One end of the second connecting rod is connected to a rotating shaft, and the other end is slidably fitted inside the second sleeve. One end of the second sleeve passes through the inner and outer peripheral walls of the support ring and connects to the protective shell. The second spring is located inside the second sleeve, and both ends of the second spring are respectively connected to the other end of the second connecting rod and the protective shell. The first probe is located inside the protective shell, and the protective shell abuts against the inner wall of the pipe.

[0009] Furthermore, the lower end of the protective shell extends outwards to form a cutting edge, which is made of a soft material; it also includes a brush, a third connecting rod, a third sleeve, and a third spring. One end of the third connecting rod is connected to a rotating shaft, and the other end is slidably connected to the third sleeve. One end of the third sleeve is connected to the brush. The third spring is located in the third sleeve, and the two ends of the third spring are respectively connected to the other end of the third connecting rod and the brush.

[0010] Furthermore, the outer wall flaw detection mechanism includes a second support ring, an internal gear ring, a gear, a slider, a second motor, and a second probe. The second support ring and the internal gear ring are coaxially arranged. The outer peripheral wall of the internal gear ring is connected to the inner peripheral wall of the second support ring. The inner sidewall of the second support ring is recessed inward to form a first groove. The slider is slidably connected to the first groove. The portion of the slider protruding from the first groove and facing the internal gear ring is connected to the second motor. The output shaft of the second motor is connected to the gear. The gear meshes with the internal gear ring. The side of the slider facing the pipe is connected to the second probe, and the second probe is elastically connected to the slider.

[0011] Furthermore, the magnetic suction box of the traveling mechanism on the outer wall of the pipe has an inwardly recessed groove on the upper part of the side facing the external flaw detection mechanism. The second support ring includes a support plate, a sliding plate, and a fourth spring. There are multiple support plates, which can be closed into a ring shape. Each end of the multiple support plates is provided with a second sliding groove. There are multiple sliding plates, which are slidably connected in a corresponding manner to the second sliding groove between two adjacent support plates. The two sides of the support plate protrude outward to form protrusions, which are slidably connected to the groove. The fourth spring is located in the groove, and its two ends are respectively connected to the lower part of the groove and the lower end face of the protrusion.

[0012] Furthermore, the two support plates located below the pipe are both broken from the middle along the length of the pipe to form a first rotating plate and a second rotating plate. The first rotating plate is slidably connected to the groove, and the second rotating plate is connected to the first rotating plate by a spring hinge. An elastic abutment is connected to the lower end of the first rotating plate, and the elastic abutment abuts against the inner side of the second rotating plate.

[0013] Furthermore, the elastic support member includes a connecting block, a cam, a rotating shaft, and a fifth spring. The connecting block is fixed to the side of the first rotating plate and the rotating shaft. The upper surface of the cam has a recessed shaft hole through which the rotating shaft passes. The fifth spring is located inside the shaft hole. The two ends of the fifth spring are respectively connected to the cam and the connecting block. The protruding part of the cam abuts against the second rotating plate.

[0014] The beneficial effects of this invention are as follows: The present invention provides a quality inspection device for water conservancy engineering pipelines that can simultaneously inspect the inner and outer walls of the pipeline, reducing manual inspection and making pipeline inspection more convenient.

[0015] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an exploded view of the structure of the present invention; Figure 3 This is a cross-sectional view of the structure of the present invention; Figure 4 This is a schematic diagram of the structure of the second support ring and the second probe of the present invention; Figure 5 This is a schematic diagram of the structure of the supporting member of the present invention; Figure 6 This is a schematic diagram of the internal wall flaw detection mechanism of the present invention; Figure 7 This is a schematic diagram of the connection structure of the brush of the present invention.

[0017] In the diagram: 1. Motor housing; 11. First motor; 12. Shaft; 13. First bevel gear; 14. First support ring; 15. Support rod; 2. Walking mechanism; 21. Track wheel; 22. Magnetic box; 3. Inner wall flaw detection mechanism; 31. First probe; 32. Protective shell; 321. Cutting edge; 33. Second connecting rod; 34. Second sleeve; 35. Second spring; 4. Support assembly; 41. Connecting part; 411. First connecting rod; 412. First sleeve; 413. First spring; 42. Second bevel gear; 43. Third bevel gear; 44. Fourth bevel gear; 5. Outer wall flaw detector Structure; 51. Second support ring; 511. Groove; 512. Support plate; 5121. Second slide groove; 5122. Protrusion; 5123. First rotating plate; 5124. Second rotating plate; 5125. Spring hinge; 5126. Connecting block; 5127. Cam; 5128. Rotating shaft; 5129. Fifth spring; 513. Sliding plate; 514. Fourth spring; 52. Internal gear ring; 53. Gear; 54. Slider; 55. First slide groove; 57. Second probe; 61. Brush; 62. Third connecting rod; 63. Third sleeve; 64. Third spring; 7. Pipe; Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0019] Please see Figure 1-7 This invention provides a technical solution: a quality inspection device for water conservancy engineering pipelines, comprising a walking mechanism 2, a motor housing 1, an inner wall flaw detection mechanism 3, a support assembly 4, and an outer wall flaw detection mechanism 5. The walking mechanism 2 consists of two sets, each set opposing the inner and outer walls of a pipe 7. The motor housing 1 includes a first motor 11 and a power supply. The output end of the first motor 11 is connected to a rotating shaft 12. One end of the inner wall flaw detection mechanism 3 is connected to the rotating shaft 12, and the other end abuts against the inner wall of the pipe 7. Multiple support assemblies 4 are arranged in a ring-shaped, spaced array along the center line of a rotating shaft 5128. Both ends of each support assembly 4 are connected to the rotating shaft 12 and the walking mechanism 2 on the inner wall of the pipe 7, respectively. The walking mechanism 2 on the outer wall of the pipe 7 is magnetically attracted to the walking mechanism 2 on the inner wall of the pipe 7. The outer wall flaw detection mechanism 5 is connected to the walking mechanism 2 on the outer wall of the pipe 7.

[0020] When using the quality inspection device for a water conservancy project pipeline 7 according to the present invention, the device is first placed inside the pipeline 7. The walking mechanism 2 on the inner wall of the pipeline 7 is supported by the support component 4, so that multiple walking mechanisms 2 on the inner wall of the pipeline 7 abut against the inner wall of the pipeline 7. The walking mechanism 2 on the outer wall of the pipeline 7 is placed on the outer wall of the pipeline 7. Due to the magnetic adsorption between the walking mechanism 2 on the outer wall of the pipeline 7 and the walking mechanism 2 on the inner wall of the pipeline 7, the outer wall flaw detection mechanism 5 is connected to the walking mechanism 2 on the outer wall of the pipeline 7. When the first motor 11 drives the walking mechanism 2 on the inner wall of the pipeline 7 to move along the inner wall of the pipeline 7, it can drive the walking mechanism 2 on the outer wall of the pipeline 7 to move, so that the inner wall flaw detection mechanism 3 and the outer wall flaw detection mechanism 5 of the pipeline 7 move synchronously along the pipeline 7. With this structure, the quality inspection device for a water conservancy project pipeline 7 according to the present invention can simultaneously inspect the inner and outer walls of the pipeline 7, reduce manual inspection, and make the inspection of the pipeline 7 more convenient.

[0021] Since one end of the inner wall flaw detection mechanism 3 is connected to the rotating shaft 12 and the other end abuts against the inner wall of the pipe 7, when the first motor 11 rotates and drives the rotating shaft 12 to rotate, the rotating shaft 12 will drive the inner wall flaw detection mechanism 3 to rotate. Thus, when the walking mechanism 2 drives the inner wall flaw detection mechanism 3 forward, the movement trajectory of the inner wall flaw detection mechanism 3 is spiral forward, so that the inner wall flaw detection mechanism 3 can better cover and detect all parts of the inner wall of the pipe 7 during detection.

[0022] In this embodiment: the rotating shaft 12 is connected to a first bevel gear 5313, the rotation center line of the first bevel gear 5313 is arranged along the center line of the rotating shaft 12, the support component 4 includes a second bevel gear 5342, a connecting part 41, a third bevel gear 5343 and a fourth bevel gear 5344, the second bevel gear 5342 meshes with the first bevel gear 5313, the two ends of the connecting part 41 are respectively connected to the second bevel gear 5342 and the third bevel gear 5343, and the third bevel gear 5343 meshes with the fourth bevel gear 5344; The walking mechanism 2 includes track wheels 21 and magnetic boxes 22. The fourth bevel gear 5344 is connected to a transmission rod, which is connected to the drive wheel of the track wheels 21. The magnetic boxes 22 are connected to the track wheels 21. It also includes a first support ring 14 and a support rod 15. The side wall of the first support ring 14 has multiple through holes. The multiple magnetic boxes 22 on the inner wall of the pipe 7 are slidably connected to the multiple through holes. One end of the support rod 15 is connected to the rotating shaft 12, and the other end of the support rod 15 is connected to the inner peripheral wall of the first support ring 14.

[0023] The rotation of the shaft 12 can drive the first bevel gear 5313 to rotate. Since the first support ring 14 is connected to multiple magnetic boxes 22 on the inner wall of the pipe 7, one end of the support rod 15 is connected to the shaft 12, and the other end of the support rod 15 is connected to the inner circumferential wall of the first support ring 14, when the first bevel gear 5313 rotates, the second bevel gear 5342 will not rotate along the center line of the shaft 12, thereby causing the second bevel gear 5342 to mesh and rotate. Since the two ends of the connecting part 41 are respectively connected to the second bevel gear 5342 and the third bevel gear 5343, the rotation of the second bevel gear 53 drives the third bevel gear 5343 to rotate. Since the third bevel gear 5343 meshes with the fourth bevel gear 5344, the rotation of the third bevel gear 5343 drives the fourth bevel gear 5344 to rotate, thereby driving the transmission rod to rotate, thereby driving the drive wheel of the track wheel 21 to rotate, so that the track wheel 21 can move. With this structure, when the first motor 11 is started, the shaft 12 rotates and can drive the walking mechanism 2 to move.

[0024] In this embodiment: the connecting part 41 includes a first connecting rod 411, a first sleeve 412 and a first spring 413. One end of the first connecting rod 411 is slidably engaged with the inner wall of one end of the first sleeve 412. The other end of the first connecting rod 411 is connected to a second bevel gear 5342. The other end of the first sleeve 412 is slidably connected to the magnetic box 22. The first spring 413 is located inside the first sleeve 412. The two ends of the first spring 413 are respectively connected to the other end of the first connecting rod 411 and the first end of the first sleeve 412.

[0025] Since one end of the first connecting rod 411 slides into the inner wall of one end of the first sleeve 412, and the other end of the first sleeve 412 slides into the magnetic box 22, the connecting part 41 can be extended and shortened to allow the support assembly 4 to adapt to the inner diameter of the pipe 7 of different specifications; and since the first spring 413 is located inside the first sleeve 412, and the two ends of the first spring 413 are respectively connected to the other end of the first connecting rod 411 and the first end of the first sleeve 412, when the walking mechanism 2 of the inner wall of the pipe 7 encounters an obstacle, the obstacle abuts against the track wheel 21 and moves in a direction away from the inner wall of the pipe 7, thereby compressing the first spring 413, making the connecting part 41 shorter, which to a certain extent allows the track wheel 21 to smoothly cross some obstacles.

[0026] In this embodiment: the inner wall flaw detection mechanism includes a first probe 31, a protective shell 32, a second connecting rod 33, a second sleeve 34, and a second spring 35. One end of the second connecting rod 33 is connected to the rotating shaft 12, and the other end is slidably fitted inside the second sleeve 34. One end of the second sleeve 34 passes through the inner and outer peripheral walls of the support ring and connects to the protective shell 32. The second spring 35 is disposed inside the second sleeve 34, and the two ends of the second spring 35 are respectively connected to the other end of the second connecting rod 33 and the protective shell 32. The first probe 31 is disposed inside the protective shell 32, and the protective shell 32 abuts against the inner wall of the pipe 7.

[0027] The rotation of the rotating shaft 12 drives the second connecting rod 33, the second sleeve 34, and the protective shell 32 to rotate, thereby causing the probe to rotate around the length of the rotating shaft 12 as the center line of rotation. Since the rotation of the rotating shaft 5128 can simultaneously drive the walking mechanism 2 to move, the rotating shaft 5128 can drive the probe to move forward in a spiral when rotating. Since the two ends of the second spring 35 are respectively connected to the other end of the second connecting rod 33 and the protective shell 32, the first probe 31 can perform detection in pipes 7 of different diameters. When the protective shell 32 is resisted, the resisting object can push the protective shell 32 upward so that the first probe 31 can pass smoothly.

[0028] In this embodiment: the lower end of the protective shell 32 extends outward to form a cutting edge 321, the cutting edge 321 being made of a soft material; it also includes a brush 61, a third connecting rod 62, a third sleeve 63, and a third spring 64. One end of the third connecting rod 62 is connected to the rotating shaft 12, and the other end is slidably connected to the third sleeve 63. One end of the third sleeve 63 is connected to the brush 61. The third spring 64 is located in the third sleeve 63, and the two ends of the third spring 64 are respectively connected to the other end of the third connecting rod 62 and the brush 61.

[0029] The rotation of the shaft 12 drives the third connecting rod 62, the third sleeve 63 and the brush 61 to rotate, cleaning the deposits on the inner wall of the pipe 7 and loosening them. When the protective shell 32 drives the first probe 31 to rotate, the cutting edge 321 of the protective shell 32 can scrape off the loose deposits, thereby reducing the possibility of the deposits affecting the test results to a certain extent.

[0030] In this embodiment: the outer wall flaw detection mechanism 5 includes a second support ring 51, an internal gear ring 52, a gear 53, a slider 54, a second motor, and a second probe 57. The second support ring 51 and the internal gear ring 53 are coaxially arranged. The outer peripheral wall of the internal gear ring 53 is connected to the inner peripheral wall of the second support ring 51. The inner sidewall of the second support ring 51 is recessed inward to form a first groove 55. The slider 54 is slidably connected to the first groove 55. The portion of the slider 54 protruding from the first groove 55 and facing the internal gear ring 52 is connected to the second motor. The output shaft of the second motor is connected to the gear 53. The gear 53 meshes with the internal gear ring 52. The side of the slider 54 facing the pipe 7 is connected to the second probe 57. The second probe 57 is elastically connected to the slider 54.

[0031] The second motor is started, which drives the gear 53 to rotate. The gear 53 meshes with the internal gear ring 52, thereby moving the gear 53 along the internal gear ring 52. The movement of the gear 53 causes the slider 54 to slide along the first slide groove 55, so that the second probe 57 can rotate around the outer circumference of the pipe 7. Due to the magnetic attraction between the travel mechanism 2 on the outer wall of the pipe 7 and the travel mechanism 2 on the inner wall of the pipe 7, the travel mechanism 2 on the outer wall of the pipe 7 can move forward under the drive of the travel mechanism 2 on the inner wall of the pipe 7, so that the second probe 57 can spiral forward to detect the outer wall of the pipe 7.

[0032] In this embodiment: the magnetic suction box 22 of the walking mechanism 2 on the outer wall of the pipe 7 is recessed inward on the upper part of the side facing the external flaw detection mechanism to form a groove 511. The second support ring 51 includes a support plate 512, a sliding plate 513 and a fourth spring 514. There are multiple support plates 512, which can be closed into a ring shape. The two ends of the multiple support plates 512 are respectively provided with a second sliding groove 5121. There are multiple sliding plates 513, which are slidably connected in a corresponding manner to the second sliding groove 5121 between two adjacent support plates 512. The two sides of the support plate 512 protrude outward to form a protrusion 5122, which is slidably connected in the groove 511. The fourth spring 514 is located in the groove 511, and the two ends of the fourth spring 514 are respectively connected to the lower part of the groove 511 and the lower end face of the protrusion 5122.

[0033] The movement of the inner wall walking mechanism 2 of pipe 7 drives the movement of the outer wall walking mechanism 2 of pipe 7. Since the support plate 512 is slidably connected to the groove 511, the third spring 64 is located in the groove 511. The two ends of the third spring 64 are respectively connected to the lower part of the groove 511 and the lower end face of the protrusion 5122. When the track wheel 21 encounters the protrusion at the pipe body connection part 41, the track wheel 21 drives the magnetic box 22 to move upward, compressing the fourth spring 514. At the same time, the sliding plate 513 slides in the second slide groove 5121, so that the radius of the second support ring 51 can be expanded, so that the track wheel 21 can pass smoothly through the protrusion on the outer wall surface of pipe 7. Thus, the walking mechanism 2 of the outer wall of pipe 7 can drive the second probe 57 to pass over the protrusion on the surface of pipe 7, so that the second probe 57 can detect a longer distance of the outer wall of pipe 7.

[0034] As the track wheel 21 passes over the protrusion on the outer wall surface of the pipe 7, the track wheel 21 returns to its original position under the push of the spring and continues to move while adhering to the outer wall of the pipe 7.

[0035] In this embodiment: the two support plates 512 located below the pipe 7 are both broken from the middle along the length of the pipe 7 to form a first rotating plate 5123 and a second rotating plate 5124. The first rotating plate 5123 is slidably connected to the groove 511. The second rotating plate 5124 is connected to the first rotating plate 5123 by a spring hinge 5125. The lower end of the first rotating plate 5123 is connected to an elastic abutment, which abuts against the inner side of the second rotating plate 5124.

[0036] During its movement, when the second support ring 51 encounters the support base of the pipe 7, the support base of the pipe 7 abuts against the elastic abutment, thereby causing the elastic abutment to abut against the inner wall of the second rotating plate 5124. The second rotating plate 5124 begins to rotate under the pressure of its inner wall, thus forming an opening at the lower part of the second support ring 51, allowing the second support ring 51 to pass smoothly through the support base of the pipe 7. After the second support ring 51 passes through the support base of the pipe 7, the elastic abutment returns to its original position when it is no longer abutted by the pipe 7. Since the second rotating plate 5124 is connected to the first rotating plate 5123 by a spring hinge 5125, when the second abutment is no longer abutted by the elastic abutment, it will drive the second rotating plate 5124 to return to its original position, thereby allowing the second support ring 51 to continue its closed operation.

[0037] Specifically, a support rod is connected to the side of the first rotating plate 5123 facing the second rotating plate 5124. When the second rotating plate 5124 rotates along the first rotating plate 5123, if the slider 54 just slides to the end of the first rotating plate 5123 facing the second rotating plate 5124, the support rod can resist the sliding of the slider 54. In this embodiment: the elastic support member includes a connecting block 5126, a cam 5127, a rotating shaft 5128, and a fifth spring 5129. The connecting block 5126 is fixed to the side of the first rotating plate and the rotating shaft 5128. The upper surface of the cam 5127 has a recessed shaft hole through which the rotating shaft 5128 passes. The fifth spring 5129 is located in the shaft hole. The two ends of the fifth spring 5129 are respectively connected to the cam 5127 and the connecting block 5126. The protrusion 5122 of the cam 5127 abuts against the second rotating plate 5124.

[0038] When the cam 5127 is not supported, the protruding part of the cam 5127 is arranged parallel to the side of the second rotating plate 5124. At this time, the protruding part 5122 of the cam 5127 does not support the second rotating plate 5124. When the support ring moves to the support base position of the pipe 7, the edge of the support base of the pipe 7 supports the protruding part of the cam 5127, causing the protruding part of the cam 5127 to rotate toward the second rotating plate 5124. The protruding part of the cam 5127 supports the inner side of the second rotating plate 5124, so that the second rotating plate 5124 can rotate when the second support ring 51 passes through.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A quality inspection device for water conservancy engineering pipelines, characterized in that: The system includes a traveling mechanism, a motor housing, an inner wall flaw detection mechanism, a support assembly, and an outer wall flaw detection mechanism. The traveling mechanism consists of two sets, each set opposing the inner and outer walls of the pipe. The motor housing includes a first motor and a power supply. The output end of the first motor is connected to a rotating shaft. One end of the inner wall flaw detection mechanism is connected to the rotating shaft, and the other end abuts against the inner wall of the pipe. Multiple support assemblies are arranged in a ring-shaped, spaced array along the center line of the rotating shaft. Both ends of each support assembly are connected to the rotating shaft and the traveling mechanism on the inner wall of the pipe, respectively. The traveling mechanism on the outer wall of the pipe is magnetically attached to the traveling mechanism on the inner wall. The outer wall flaw detection mechanism is connected to the traveling mechanism on the outer wall of the pipe. The external wall flaw detection mechanism includes a second support ring, an internal gear ring, a gear, a slider, a second motor, and a second probe. The second support ring and the internal gear ring are coaxially arranged. The outer peripheral wall of the internal gear ring is connected to the inner peripheral wall of the second support ring. The inner sidewall of the second support ring is recessed inward to form a first groove. The slider is slidably connected to the first groove. The portion of the slider protruding from the first groove and facing the internal gear ring is connected to the second motor. The output shaft of the second motor is connected to the gear. The gear meshes with the internal gear ring. The side of the slider facing the pipe is connected to the second probe. The second probe is elastically connected to the slider. The magnetic suction box of the pipe outer wall traveling mechanism has a groove recessed inward on the upper part of the side facing the outer wall flaw detection mechanism. The second support ring includes a support plate, a sliding plate, and a fourth spring. There are multiple support plates, which can be closed into a ring. The two ends of the multiple support plates are respectively provided with second sliding grooves. There are multiple sliding plates, which are slidably connected in a corresponding manner to the second sliding grooves between two adjacent support plates. The two sides of the support plate protrude outward to form protrusions, which are slidably connected to the groove. The fourth spring is located in the groove, and its two ends are respectively connected to the lower part of the groove and the lower end face of the protrusion. The two support plates located below the pipe are both broken from the middle along the length of the pipe to form a first rotating plate and a second rotating plate. The first rotating plate is slidably connected to the groove. The second rotating plate is connected to the first rotating plate by a spring hinge. The lower end of the first rotating plate is connected to an elastic abutment, which abuts against the inner side of the second rotating plate. The elastic support member includes a connecting block, a cam, a rotating shaft, and a fifth spring. The connecting block is fixed to the side of the first rotating plate and the rotating shaft. The upper surface of the cam has a recessed shaft hole through which the rotating shaft passes. The fifth spring is located in the shaft hole. The two ends of the fifth spring are respectively connected to the cam and the connecting block. The protruding part of the cam abuts against the second rotating plate.

2. The water conservancy project pipeline quality inspection device according to claim 1, characterized in that: The rotating shaft is connected to a first bevel gear, and the rotation center line of the first bevel gear is set along the center line of the rotating shaft. The support assembly includes a second bevel gear, a connecting part, a third bevel gear, and a fourth bevel gear. The second bevel gear meshes with the first bevel gear. The two ends of the connecting part are respectively connected to the second bevel gear and the third bevel gear. The third bevel gear meshes with the fourth bevel gear. The walking mechanism includes a track wheel and a magnetic chuck. The fourth bevel gear is connected to a transmission rod. The transmission rod is connected to the drive wheel of the track wheel. The magnetic chuck is connected to the track wheel. The mechanism also includes a first support ring and a support rod. The side wall of the first support ring has multiple through holes. Multiple magnetic chucks on the inner wall of the pipe are slidably connected to the multiple through holes one-to-one. One end of the support rod is connected to the rotating shaft, and the other end of the support rod is connected to the inner peripheral wall of the first support ring.

3. The water conservancy project pipeline quality inspection device according to claim 2, characterized in that: The connecting part includes a first connecting rod, a first sleeve, and a first spring. One end of the first connecting rod is slidably fitted to the inner wall of one end of the first sleeve. The other end of the first connecting rod is connected to a second bevel gear. The other end of the first sleeve is slidably connected to the magnetic box. The first spring is located inside the first sleeve, and both ends of the first spring are respectively connected to the other end of the first connecting rod and the first end of the first sleeve.

4. The water conservancy project pipeline quality inspection device according to claim 1, characterized in that: The internal wall flaw detection mechanism includes a first probe, a protective shell, a second connecting rod, a second sleeve, and a second spring. One end of the second connecting rod is connected to a rotating shaft, and the other end is slidably fitted inside the second sleeve. One end of the second sleeve passes through the inner and outer peripheral walls of the support ring and connects to the protective shell. The second spring is located inside the second sleeve, and both ends of the second spring are respectively connected to the other end of the second connecting rod and the protective shell. The first probe is located inside the protective shell, and the protective shell abuts against the inner wall of the pipe.

5. The water conservancy project pipeline quality inspection device according to claim 4, characterized in that: The lower end of the protective shell extends outwards to form a cutting edge, which is made of a soft material; it also includes a brush, a third connecting rod, a third sleeve, and a third spring. One end of the third connecting rod is connected to a rotating shaft, and the other end is slidably connected to the third sleeve. One end of the third sleeve is connected to the brush. The third spring is located inside the third sleeve, and the two ends of the third spring are respectively connected to the other end of the third connecting rod and the brush.

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