Nondestructive testing equipment for coatings on inner wall and outer wall of pipe

By designing the drive component set, driven component set and auxiliary component set, non-destructive testing of metal pipe coating is achieved, the problem of difficulty in adjusting and rotating the telescopic support is solved, and the detection efficiency and accuracy are improved.

CN120294247APending Publication Date: 2025-07-11SHENZHEN HUATAI TESTING CO LTD
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Patent Information

Application Number
CN202410047227.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-01-11
Publication Date
2025-07-11

AI Technical Summary

Technical Problem

The telescopic brackets of existing metal pipe coating detection equipment are difficult to adjust and rotate, resulting in low detection efficiency and easy damage to the coating.

Method used

A non-destructive testing equipment for inner and outer wall coating of pipes is designed, using a driving component group, driven component group, detection component group and auxiliary component group. The servo motor drives the synchronous belt to drive the detection probe to rotate and move in the pipeline to realize non-destructive testing.

Benefits of technology

It improves the flexibility and accuracy of inspection, avoids coating damage, meets the requirements of non-destructive testing, and is suitable for inner wall coating inspection of different pipe lengths.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The invention relates to the technical field of pipe detection, in particular to pipe inner and outer wall coating nondestructive testing equipment which comprises a driving component set arranged outside a pipe body, the driving component set is used for supporting the pipe body, and the driving component set comprises a first servo motor; a first end supporting piece is arranged at one end of the first servo motor, a second end supporting piece is arranged on one side of the first end supporting piece, and a small supporting piece is arranged between the second end supporting piece and the first end supporting piece. A traditional telescopic support is complex in operation, a probe is difficult to adjust and rotate, a newly designed structure enables detection of the interior of a pipeline coating to be more convenient, efficient and accurate through an internal supporting and adjusting mechanism, the designed structure can move freely and is suitable for different pipeline lengths, the inner wall coating at any position can be conveniently detected, and the detection accuracy is improved. And greater flexibility and adaptability are provided.
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Description

Technical Field

[0001] The present invention relates to the technical field of pipe detection, and particularly to a non-destructive detection device for the inner and outer wall coatings of pipes. Background Art

[0002] In order to prevent metal pipes from being corroded and leaking, an anti-corrosion coating is usually sprayed on both the inner and outer walls of metal pipes. The current coating detection methods usually rely on an electronic coating thickness gauge. When in use, the operator needs to hold the measurement probe and vertically contact the inner wall to be measured. The probe senses the thickness of the coating through the electromagnetic difference between the substrate and the coating, so as to conduct quality detection on the coating condition.

[0003] When the pipe is long, personnel need to use a telescopic bracket to extend the probe into the pipe for detection. However, the telescopic bracket is not convenient for adjusting the position and rotating the probe, with great operation difficulty and poor use effect, which affects the detection efficiency. Moreover, the telescopic bracket is prone to contact with the coating during movement, causing scratches, and thus damaging the coating and affecting the use of the pipe. Summary of the Invention

[0004] In order to overcome the above technical problems, the purpose of the present invention is to provide a non-destructive detection device for the inner and outer wall coatings of pipes, so as to solve the problems in the current metal pipe coating detection that the telescopic bracket is not convenient for adjustment and is prone to scrape the inner wall of the pipe as mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A non-destructive detection device for the inner and outer wall coatings of pipes, including a pipe body,

[0006] A driving component group is arranged outside the pipeline main body. The driving component group is used to support the pipeline main body. The driving component group includes a servo motor 1. One end of the servo motor 1 is provided with an end support 1. One side of the end support 1 is provided with an end support 2. A small support is arranged between the end support 2 and the end support 1. A synchronous belt is arranged on the end support 1. A driven component group is arranged on the synchronous belt. The driven component group is used to move synchronously with the synchronous belt. The driven component group includes a front-end driven component and a rear-end driven component. The front-end driven component includes a driven block. A clamping strip is arranged inside the driven block. One end of the clamping strip is provided with an end plate. A synchronous tooth 1 is arranged inside the driven block. A roller part is arranged on one side of the synchronous tooth 1. A detection component group is arranged on the side of the driven component group. The detection component group is used to detect the inner wall coating of the pipeline main body. The detection component group includes a detection ring block. A moving ring is arranged outside the detection ring block. A detection component is arranged on one side of the moving ring. An internal toothed ring is arranged on the side of the moving ring. A servo motor 2 is arranged on one side of the internal toothed ring. A signal connection block is arranged on one side of the detection component. A detector main body is arranged on one side of the signal connection block. An auxiliary component group is arranged on one side of the detection component group. The auxiliary component group is used to assist in supporting the detection component group.

[0007] Preferably: The end support 1 and the end support 2 have the same structure, and the end support 1 and the end support 2 are symmetrically arranged on both sides of the small support. The small support supports the bottom of the pipeline main body. The end support 1 is connected with a synchronous tooth through a bearing bracket, and meshes with the synchronous belt through the synchronous tooth. The servo motor 1 drives the synchronous tooth on the end support 1 to rotate through a belt transmission component.

[0008] Preferably: The front-end driven component and the rear-end driven component have the same structure. The driven block is in sliding contact with the clamping strip through a chute. One end of the clamping strip is connected with the end plate. The end plate is connected with the driven block through bolts. The synchronous tooth 1 is connected with the driven block through a bearing. The synchronous tooth 1 meshes with the synchronous belt. The clamping strip contacts the synchronous belt through a toothed structure. The roller part is connected with the driven block through a bearing. The roller part contacts the outside of the synchronous belt.

[0009] Preferably: The detection ring block is connected with the driven block. The detection ring block is provided with through holes at positions corresponding to the synchronous belt, and the detection ring block does not contact the synchronous belt. The detection ring block is connected with the moving ring through a bearing. Six groups of detection components are arranged on the detection component. The six groups of detection components are evenly distributed on the moving ring. The detection component includes a detection probe. An adjustment bolt is arranged on the side of the detection probe. A side support column is arranged outside the adjustment bolt. The detection probe is rotationally connected with the adjustment bolt through a bearing bracket. The adjustment bolt is connected with the side support column through a thread. The side support column is connected with the moving ring.

[0010] Preferably, the inner gear ring is connected to the side surface of the moving ring. The second servo motor is connected to the detection ring block through a support frame. The working end of the second servo motor is connected to a gear, and the second servo motor is meshed with the inner gear ring through the gear.

[0011] Preferably, the six detection probes are commonly connected to an annular contact wire, and the signal connection block is in contact with the annular contact wire. The signal connection block is connected to the detector main body through an electric wire, and the detector main body is connected to the second servo motor through a support.

[0012] Preferably, the auxiliary component group includes an auxiliary ring. A wheel frame is arranged outside the auxiliary ring. A roller is arranged on the wheel frame. A ring plate is arranged on one side of the auxiliary ring. A second synchronous tooth is arranged in the ring plate.

[0013] Preferably, one side of the auxiliary ring is connected to the ring plate, and the other side of the auxiliary ring is connected to the rear end driven assembly. Three sets of the wheel frame and the roller are arranged, and the three sets of the wheel frame and the roller are evenly distributed on the auxiliary ring. The side of the ring plate away from the auxiliary ring is connected to the detection ring block. The ring plate is connected to the second synchronous tooth through a rotating shaft, and the second synchronous tooth is meshed with a synchronous belt.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This non-destructive testing equipment for the inner and outer wall coatings of a pipe is provided with a driving component group, a driven component group, a detection component group, and an auxiliary component group. Currently, during the inspection of a pipe, when the pipe is long, personnel need to use a telescopic support to extend the probe into the pipe for inspection. However, the telescopic support is not convenient for adjusting and rotating the position of the probe, resulting in a large operation difficulty, poor use effect, and affecting the inspection efficiency. In the corresponding designed driving component group, driven component group, detection component group, and auxiliary component group, when performing an internal inspection on the pipe body, first measure the pipe body, and then select the length of the synchronous belt according to the length of the pipe body. The length of the synchronous belt should be longer than the length of the pipe body. Then, support the two ends of the pipe body respectively through the end support one and the end support two, and place the small support in the middle position of the pipe body for support. Install the structures of the driven component group, detection component group, and auxiliary component group on the synchronous belt exposed outside the pipe body. When the installation is completed, insert the card strip into the chute of the driven block, and the insertion of the card strip will engage with the upper part of the synchronous belt through the toothed structure. Then, bolt the end plate and the driven block to complete the clamping of the card strip and the synchronous belt. At this time, when the synchronous belt is driven by the servo motor one, the driven component group will move along with the upper belt position of the synchronous belt. The synchronous gear one meshes with the lower belt of the synchronous belt, and the roller part contacts the outer bottom of the lower belt of the synchronous belt. Both the synchronous gear one and the roller part play a role in limiting the driven component group to maintain the structural problem of the driven component group. In the detection component group connected to the driven component group, when the servo motor two is started, it drives the internal gear ring to rotate through the gear. The rotation of the internal gear ring will drive the moving ring, and the moving ring will rotate on the detection ring block through the bearing. The rotation of the moving ring will drive the detection component to rotate inside the pipe body. By rotating the adjustment bolt, the position of the detection probe on the side support can be adjusted, and then the detection probe can be made to contact the inner wall of the pipe body. When the detection probe is started, it will detect the coating thickness of the inner wall of the pipe body. The power supply and signal data will be transmitted and aggregated to the circular contact line. The signal connection block contacts the circular contact line to receive the transmitted signal and power supply. Then, the signal is transmitted to the detector main body through the wire. The detector main body will analyze and process the information to obtain the coating wall thickness data. Then, through the built-in transmission structure, the data is transmitted to the terminal used by the personnel, and the personnel can view the data through the terminal. By controlling the synchronous belt, the synchronous belt drives the driven component group,The driven component group drives the detection component group, enabling the detection component group to move freely within the entire long pipeline body, facilitating the detection of the inner wall coating at any position. The auxiliary component group is used to provide internal auxiliary support for the detection component group and the driven component group. Mainly through the contact between the rollers and the inner wall of the pipeline body, the wheel frame, rollers, and auxiliary ring can ensure that the position of the detection component group is on the axis of the pipeline body, facilitating the movement of the internal detection structure. The design of this drive component group, driven component group, detection component group, and auxiliary component group makes the traditional telescopic bracket complex to operate, difficult to adjust and rotate the probe. However, the newly designed structure, through the internal support and adjustment mechanism, makes the detection of the pipeline coating more convenient, efficient, and accurate. Due to the designed structure being able to move freely, it is applicable to different pipeline lengths, can facilitate the detection of the inner wall coating at any position, providing greater flexibility and adaptability;

[0016] 2. This non-destructive testing equipment for the inner and outer wall coatings of pipes is provided with a drive component group, a driven component group, a detection component group, and an auxiliary component group. In the existing telescopic bracket, it is easy to contact the coating during movement, causing scratches, which in turn leads to damage to the coating and affects the use of the pipeline. In the corresponding designed structure, in the detection component group and the auxiliary component group, since the internal structure is driven by a synchronous belt and with the auxiliary cooperation of the driven component group and the auxiliary component group, the internal detection structure is not likely to cause abrasion to the inner wall during movement, thus avoiding damage to the coating of the pipeline body and improving the practicality of the overall detection structure to meet the requirements of non-destructive testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is the schematic diagram of the internal structure of the pipeline body of the present invention;

[0019] Figure 3 is the schematic diagram of the internal structure of the present invention;

[0020] Figure 4 is the schematic diagram of the two-dimensional cross-section of the internal structure of the present invention;

[0021] Figure 5 is the schematic diagram of the three-dimensional cross-section of the internal structure of the present invention;

[0022] Figure 6 is the schematic diagram of the back structure of the internal structure of the present invention;

[0023] Figure 7 is the exploded schematic diagram of the internal structure of the present invention.

[0024] In the figure: 01, pipeline main body; 02, driving component group; 21, first servo motor; 22, first end support; 23, second end support; 24, small support; 25, synchronous belt; 03, driven component group; 31, front-end driven assembly; 311, driven block; 312, clamping strip; 313, end plate; 314, first synchronous tooth; 315, roller part; 32, rear-end driven assembly; 04, detection component group; 41, detection ring block; 42, moving ring; 43, detection assembly; 431, detection probe; 432, adjusting bolt; 433, side support; 44, internal tooth ring; 45, second servo motor; 46, signal connection block; 47, detector main body; 05, auxiliary component group; 51, auxiliary ring; 52, wheel frame; 53, roller; 54, ring plate; 55, second synchronous tooth. Detailed implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figure 1-7, an embodiment provided by the present invention: a non-destructive testing device for the inner and outer wall coatings of pipes, including a pipe main body 01. An actuating component group 02 is arranged outside the pipe main body 01, and the actuating component group 02 is used to support the pipe main body 01. The actuating component group 02 includes a servo motor 21. One end of the servo motor 21 is provided with an end support 22. One side of the end support 22 is provided with an end support 23. A small support 24 is arranged between the end support 23 and the end support 22. A synchronous belt 25 is arranged on the end support 22; a driven component group 03 is arranged on the synchronous belt 25, and the driven component group 03 is used to move synchronously with the synchronous belt 25. The driven component group 03 includes a front-end driven component 31 and a rear-end driven component 32. The front-end driven component 31 includes a driven block 311. A clamping strip 312 is arranged inside the driven block 311. One end of the clamping strip 312 is provided with an end plate 313. A synchronous tooth 314 is arranged inside the driven block 311. A roller member 315 is arranged on one side of the synchronous tooth 314; a detection component group 04 is arranged on the side of the driven component group 03, and the detection component group 04 is used to detect the inner wall coating of the pipe main body 01. The detection component group 04 includes a detection ring block 41. A moving ring 42 is arranged outside the detection ring block 41. One side of the moving ring 42 is provided with a detection component 43. An inner tooth ring 44 is arranged on the side of the moving ring 42. A servo motor 45 is arranged on one side of the inner tooth ring 44. One side of the detection component 43 is provided with a signal connection block 46. A detector main body 47 is arranged on one side of the signal connection block 46; an auxiliary component group 05 is arranged on one side of the detection component group 04, and the auxiliary component group 05 is used to assist in supporting the detection component group 04.

[0027] The end support 22 and the end support 23 have the same structure, and the end support 22 and the end support 23 are symmetrically arranged on both sides of the small support 24. The small support 24 supports the bottom of the pipe main body 01. The end support 22 is connected with a synchronous tooth through a bearing bracket, and is meshed with the synchronous belt 25 through the synchronous tooth. The servo motor 21 drives the synchronous tooth on the end support 22 to rotate through a transmission belt assembly.

[0028] The front-end driven component 31 and the rear-end driven component 32 have the same structure. The driven block 311 is in sliding contact with the clamping strip 312 through a chute. One end of the clamping strip 312 is connected with the end plate 313. The end plate 313 is connected with the driven block 311 through bolts. The synchronous tooth 314 is connected with the driven block 311 through a bearing. The synchronous tooth 314 is meshed with the synchronous belt 25. The clamping strip 312 is in contact with the synchronous belt 25 through a toothed structure. The roller member 315 is connected with the driven block 311 through a bearing. The roller member 315 is in contact with the outside of the synchronous belt 25.

[0029] The detection ring block 41 is connected to the driven block 311. The detection ring block 41 is provided with through holes at the positions corresponding to the synchronous belt 25, and the detection ring block 41 does not contact the synchronous belt 25. The detection ring block 41 is connected to the moving ring 42 through a bearing. There are six groups of detection components 43 provided on the moving ring 42, and the six groups of detection components 43 are evenly distributed on the moving ring 42. The detection component 43 includes a detection probe 431. An adjustment bolt 432 is provided on the side of the detection probe 431. A side support column 433 is provided outside the adjustment bolt 432. The detection probe 431 is rotationally connected to the adjustment bolt 432 through a bearing bracket. The adjustment bolt 432 is connected to the side support column 433 through a thread, and the side support column 433 is connected to the moving ring 42.

[0030] The internal gear ring 44 is connected to the side surface of the moving ring 42. The servo motor two 45 is connected to the detection ring block 41 through a support frame. The working end of the servo motor two 45 is connected to a gear, and the servo motor two 45 is meshed with the internal gear ring 44 through the gear.

[0031] The six groups of detection probes 431 are commonly connected to an annular contact wire, and the signal connection block 46 contacts the annular contact wire. The signal connection block 46 is connected to the detector main body 47 through an electric wire. The detector main body 47 is connected to the servo motor two 45 through a support.

[0032] The auxiliary component group 05 includes an auxiliary ring 51. A wheel frame 52 is provided outside the auxiliary ring 51. A roller 53 is provided on the wheel frame 52. A ring plate 54 is provided on one side of the auxiliary ring 51. A second synchronous tooth 55 is provided in the ring plate 54.

[0033] One side of the auxiliary ring 51 is connected to the ring plate 54. The other side of the auxiliary ring 51 is connected to the rear-end driven assembly 32. There are three groups of the wheel frame 52 and the roller 53, and the three groups of the wheel frame 52 and the roller 53 are evenly distributed on the auxiliary ring 51. The side of the ring plate 54 away from the auxiliary ring 51 is connected to the detection ring block 41. The ring plate 54 is connected to the second synchronous tooth 55 through a rotating shaft, and the second synchronous tooth 55 is meshed with the synchronous belt 25.

[0034] Working principle: Currently, during the inspection of pipelines, when the pipeline is long, personnel need to use a telescopic support to extend the probe into the pipeline for inspection. However, the telescopic support is not convenient for adjusting and rotating the position of the probe, making the operation difficult and the use effect poor, which affects the inspection efficiency. In the correspondingly designed driving component group 02, driven component group 03, inspection component group 04, and auxiliary component group 05, when performing internal inspection on the pipeline main body 01, first measure the pipeline main body 01, and then select the length of the synchronous belt 25 according to the length of the pipeline main body 01. The length of the synchronous belt 25 should be longer than the length of the pipeline main body 01. Then, support both ends of the pipeline main body 01 with the end support one 22 and the end support two 23 respectively, and place the small support 24 at the middle position of the pipeline main body 01 for support. Install the structures of the driven component group 03, inspection component group 04, and auxiliary component group 05 on the synchronous belt 25 exposed outside the pipeline main body 01. When the installation is completed, insert the strip 312 into the chute of the driven block 311, and the insertion of the strip 312 will engage with the upper part of the synchronous belt 25 through the toothed structure. Then, bolt the end plate 313 and the driven block 311 to complete the clamping of the strip 312 and the synchronous belt 25. At this time, when the synchronous belt 25 is driven by the servo motor one 21, the driven component group 03 will move along with the upper belt position of the synchronous belt 25. The synchronous tooth one 314 meshes with the lower belt of the synchronous belt 25, and the roller part 315 contacts the outer bottom of the lower belt of the synchronous belt 25. Both the synchronous tooth one 314 and the roller part 315 play a role in limiting the driven component group 03 to maintain the structural problem of the driven component group 03. In the inspection component group 04 connected to the driven component group 03, when the servo motor two 45 starts, it drives the internal gear ring 44 to rotate through the gear. The rotation of the internal gear ring 44 will drive the moving ring 42, and the moving ring 42 will rotate on the inspection ring block 41 through the bearing. The rotation of the moving ring 42 will drive the inspection component 43 to rotate inside the pipeline main body 01. By rotating the adjustment bolt 432, the position of the inspection probe 431 on the side support 433 can be adjusted, so that the inspection probe 431 can contact the inner wall of the pipeline main body 01. When the inspection probe 431 starts, it will detect the coating thickness of the inner wall of the pipeline main body 01. The power supply and signal data will be transmitted and summarized to the circular contact line. The signal connection block 46 contacts the circular contact line to receive the transmitted signal and power supply, and then transmits the signal to the detector main body 47 through the wire. The detector main body 47 will analyze and process the information to obtain the coating wall thickness data, and then transmit the data to the terminal used by the personnel through the built-in transmission structure. The personnel can view the data through the terminal. By controlling the synchronous belt 25, the synchronous belt 25 drives the driven component group 03,The driven component group 03 drives the detection component group 04, enabling the detection component group 04 to move freely within the entire long pipeline body 01, facilitating the detection of the inner wall coating at any position. The auxiliary component group 05 is used to provide internal auxiliary support for the detection component group 04 and the driven component group 03. Mainly through the contact between the roller 53 and the inner wall of the pipeline body 01, the wheel frame 52, the roller 53, and the auxiliary ring 51 can ensure that the position of the detection component group 04 is on the axis of the pipeline body 01, facilitating the movement of the internal detection structure. With the design of this drive component group 02, driven component group 03, detection component group 04, and auxiliary component group 05, the operation of the traditional telescopic support is complex, and it is difficult to adjust and rotate the probe. However, the newly designed structure enables more convenient, efficient, and accurate detection of the inner part of the pipeline coating through the internal support and adjustment mechanism. Since the designed structure can move freely, it is applicable to different pipeline lengths, facilitating the detection of the inner wall coating at any position, providing greater flexibility and adaptability. In the existing telescopic support, it is easy to contact and scratch the coating during movement, which may damage the coating and affect the use of the pipeline. In the corresponding designed structure, in the detection component group 04 and the auxiliary component group 05, since the internal structure is driven to move by the synchronous belt 25 and with the auxiliary cooperation of the driven component group 03 and the auxiliary component group 05, the internal detection structure is not likely to scrape the inner wall during movement, thus avoiding damage to the coating of the pipeline body 01 and improving the practicality of the overall detection structure, meeting the requirements of non-destructive testing.,

[0035] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any perspective, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.,

Claims

1. A non-destructive testing device for the inner and outer wall coatings of a pipe, comprising a pipe main body (01), characterized in that: A driving component group (02) is arranged outside the pipe main body (01), and the driving component group (02) is used to support the pipe main body (01). The driving component group (02) includes a first servo motor (21). One end of the first servo motor (21) is provided with a first end support (22). One side of the first end support (22) is provided with a second end support (23). A small support (24) is arranged between the second end support (23) and the first end support (22). A synchronous belt (25) is arranged on the first end support (22); A driven component group (03) is arranged on the synchronous belt (25), and the driven component group (03) is used to move synchronously with the synchronous belt (25). The driven component group (03) includes a front-end driven component (31) and a rear-end driven component (32). The front-end driven component (31) includes a driven block (311). A clamping strip (312) is arranged inside the driven block (311). One end of the clamping strip (312) is provided with an end plate (313). A first synchronous tooth (314) is arranged inside the driven block (311). A roller part (315) is arranged on one side of the first synchronous tooth (314); A detection component group (04) is arranged on the side of the driven component group (03), and the detection component group (04) is used to detect the inner wall coating of the pipe main body (01). The detection component group (04) includes a detection ring block (41). A moving ring (42) is arranged outside the detection ring block (41). A detection component (43) is arranged on one side of the moving ring (42). An inner tooth ring (44) is arranged on the side of the moving ring (42). A second servo motor (45) is arranged on one side of the inner tooth ring (44). A signal connection block (46) is arranged on one side of the detection component (43). A detector main body (47) is arranged on one side of the signal connection block (46); An auxiliary component group (05) is arranged on one side of the detection component group (04), and the auxiliary component group (05) is used to assist in supporting the detection component group (04).

2. The non-destructive testing device for the inner and outer walls of a pipe according to claim 1, characterized in that: The first end support (22) and the second end support (23) have the same structure, and the first end support (22) and the second end support (23) are symmetrically arranged on both sides of the small support (24). The small support (24) supports the bottom of the pipe main body (01). The first end support (22) is connected with a synchronous tooth through a bearing bracket and meshes with the synchronous belt (25) through the synchronous tooth. The first servo motor (21) drives the synchronous tooth on the first end support (22) to rotate through a transmission belt assembly.

3. An internal and external wall coating non-destructive testing device for pipes according to claim 1, characterized in that: The front-end driven assembly (31) and the rear-end driven assembly (32) have the same structure. The driven block (311) is in sliding contact with the chute and the clamping strip (312). One end of the clamping strip (312) is connected to the end plate (313). The end plate (313) is connected to the driven block (311) by bolts. The first synchronous tooth (314) is connected to the driven block (311) by a bearing. The first synchronous tooth (314) meshes with the synchronous belt (25). The clamping strip (312) contacts the synchronous belt (25) through a toothed structure. The roller member (315) is connected to the driven block (311) by a bearing. The roller member (315) contacts the outside of the synchronous belt (25).

4. A non-destructive testing device for the inner and outer walls of a pipe according to claim 1, characterized in that: The detection ring block (41) is connected to the driven block (311). The detection ring block (41) is provided with through holes at positions corresponding to the synchronous belt (25), and the detection ring block (41) does not contact the synchronous belt (25). The detection ring block (41) is connected to the moving ring (42) by a bearing. Six groups of detection components (43) are provided on the detection component (43), and the six groups of detection components (43) are evenly distributed on the moving ring (42). The detection component (43) includes a detection probe (431). An adjustment bolt (432) is provided on the side of the detection probe (431). A side support column (433) is provided outside the adjustment bolt (432). The detection probe (431) is rotatably connected to the adjustment bolt (432) through a bearing bracket. The adjustment bolt (432) is connected to the side support column (433) by a thread. The side support column (433) is connected to the moving ring (42).

5. The non-destructive testing equipment for the inner and outer walls of a pipe according to claim 1, characterized in that: The internal gear ring (44) is connected to the side of the moving ring (42). The second servo motor (45) is connected to the detection ring block (41) through a support frame. The working end of the second servo motor (45) is connected to a gear, and the second servo motor (45) meshes with the internal gear ring (44) through the gear.

6. The non-destructive testing equipment for the inner and outer walls of a pipe according to claim 4, characterized in that: The six groups of detection probes (431) are commonly connected to an annular contact wire, and the signal connection block (46) contacts the annular contact wire. The signal connection block (46) is connected to the detector main body (47) through an electric wire. The detector main body (47) is connected to the second servo motor (45) through a bracket.

7. An internal and external wall coating non-destructive testing device for pipes according to claim 1, characterized in that: The auxiliary component group (05) includes an auxiliary ring (51). A wheel frame (52) is provided outside the auxiliary ring (51). A roller (53) is provided on the wheel frame (52). A ring plate (54) is provided on one side of the auxiliary ring (51). A second synchronous tooth (55) is provided in the ring plate (54).

8. The non-destructive testing equipment for the inner and outer wall coatings of a pipe according to claim 7, characterized in that: One side of the auxiliary ring (51) is connected to the ring plate (54). The other side of the auxiliary ring (51) is connected to the rear-end driven assembly (32). Three groups of wheel frames (52) and rollers (53) are provided, and the three groups of wheel frames (52) and rollers (53) are evenly distributed on the auxiliary ring (51). The side of the ring plate (54) away from the auxiliary ring (51) is connected to the detection ring block (41). The ring plate (54) is connected to the second synchronous tooth (55) through a rotating shaft. The second synchronous tooth (55) meshes with the synchronous belt (25).