A kind of magnetic flux leakage detector for atmospheric storage tank bottom plate

Abstract

The present application relates to magnetic variable detection device technical field, and disclose a kind of magnetic flux leakage detection instrument for atmospheric storage tank bottom plate, including vehicle body, the inner wall of vehicle body is slidably connected with support plate one by sliding block, the inner wall of support plate one is fixedly connected with detection block one, the top of vehicle body is provided with swing mechanism;The swing mechanism includes;Limiting plate, the inner wall of limiting plate is rotatably connected with support shaft by bearing, the outer wall of support shaft is fixedly connected with telescopic rod one, the outer wall of telescopic rod one is fixedly connected with support sleeve, the outer wall of support sleeve is hingedly connected with support plate two by rotating shaft, the outer wall of telescopic rod one is rotatably hingedly connected with support block one.The detection block one and detection block two are adjusted by swing mechanism, so that detection block one and detection block two are more fitted to the edge of storage tank bottom plate for magnetic flux leakage detection, prevent magnetic flux leakage detection instrument from being difficult to penetrate the edge of storage tank bottom plate for magnetic flux leakage detection.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of magnetic variable detection equipment, and particularly relates to a magnetic flux leakage detection instrument for a normal-pressure storage tank bottom plate. BACKGROUND

[0002] Magnetic flux leakage detection is a detection method for identifying internal or surface defects of an object by capturing changes in a magnetic field when the object has defects, accurately identifying the defects, and providing a basis for judging the state of the object and promoting the evaluation and processing of the object.

[0003] A magnetic flux leakage detection instrument is disclosed in a patent application with the application number CN202211344523.9, which comprises a body arranged on a bearing surface, a gap for placing a to-be-detected element being arranged between the body and the bearing surface, an excitation unit capable of generating a magnetic field being arranged on the body, a driving wheel and a driven wheel being arranged below the body, wherein at least one damping piece capable of being connected with the bearing surface is further arranged below the body, and the damping piece is connected with the body through an elastic piece.

[0004] However, in the magnetic flux leakage detection process, the edges, corners and parts close to the tank wall of the storage tank bottom plate are difficult for the moving mechanism and detection unit of the traditional detection equipment to penetrate due to narrow space and complex structure. The overall structural size and moving flexibility of the equipment limit its passage in such areas, and the detection unit cannot be close to the bottom plate surface for detection, resulting in that the areas such as the edge and tank wall connection, the inner side of the corner become blind areas, which has a certain influence on the magnetic flux leakage detection. SUMMARY

[0005] The application aims to provide a magnetic flux leakage detection instrument for a normal-pressure storage tank bottom plate to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a magnetic flux leakage detection instrument for a normal-pressure storage tank bottom plate, comprising a vehicle body, a support plate one being slidably connected to the inner wall of the vehicle body through a sliding block, a detection block one being fixedly connected to the inner wall of the support plate one, and a swing mechanism being arranged on the top of the vehicle body.

[0007] The swing mechanism comprises:

[0008] The inner wall of the limiting plate is rotationally connected with a supporting shaft through a bearing, the outer wall of the supporting shaft is fixedly connected with a telescopic rod one, the outer wall of the telescopic rod one is fixedly connected with a supporting sleeve, the outer wall of the supporting sleeve is hingedly connected with a supporting plate two through a rotating shaft, the outer wall of the telescopic rod one is rotationally hingedly connected with a supporting block one through a rotating shaft, the telescopic rod one is supported through the supporting sleeve, and the supporting block one is used for driving the supporting plate one to slide in the inner wall of the vehicle body.

[0009] According to the technical scheme, the top of the vehicle body is fixedly connected with a guide rail one, the outer wall of the guide rail one is slidably connected with a guide block, the outer wall of the guide block is fixedly connected with the inner wall of a protective cover, the inner wall of the protective cover is fixedly connected with a cylinder one, the output end of the cylinder one penetrates the inner wall of the protective cover and is fixedly connected with the inner wall of the vehicle body, the inner wall of the vehicle body is provided with a sliding groove one, the outer wall of the supporting plate one is fixedly connected with a guide sleeve one, the inner wall of the guide sleeve one is slidably connected with the inner wall of the vehicle body through a sliding block, and the inner wall of the supporting plate one is fixedly connected with a guide sleeve two.

[0010] According to the technical scheme, the bottom of the supporting plate two is fixedly connected with the top of the vehicle body, the bottom of the limiting plate is fixedly connected with the outer wall of the guide block, the supporting plate two is used for supporting and limiting the supporting sleeve, the bottom of the supporting block one is fixedly connected with the top of the supporting plate one, and the outer wall of the supporting block one slides along the groove wall of the sliding groove one.

[0011] According to the technical scheme, the inner part of the supporting plate one is provided with an adjusting mechanism, the adjusting mechanism comprises a supporting plate three, the surface of the supporting plate three is fixedly connected with a guide rail two, the outer wall of the guide rail two is slidably connected with the inner wall of the guide sleeve two, the bottom of the supporting plate three is fixedly connected with a detection block two, the inner wall of the supporting plate three is fixedly connected with the output end of a cylinder two, the outer wall of the cylinder two is fixedly connected with the inner wall of the supporting plate one, the supporting plate three slides in the inner wall of the supporting plate one through the guide rail two, is used for driving the detection block two to adjust the detection position of the tank bottom plate, and the cylinder two is connected with the gas source arranged in the inner part of the protective cover, so that the cylinder two serves as a power source and drives the supporting plate three to slide in the inner wall of the supporting plate one.

[0012] According to the technical scheme, the surface of the supporting plate three is provided with a sliding groove two, the sliding groove two is slidably connected with a supporting block two through a sliding block, the outer wall of the telescopic rod two is fixedly connected with the outer wall of the supporting block two, the inner wall of the supporting block two is rotationally connected with a supporting wheel through a rotating shaft, and the supporting block two is used for supporting the supporting wheel.

[0013] According to the above technical scheme, the guide sleeve two guides the support plate three through the guide rail two, the detection block one is used for magnetic flux leakage scanning detection of the tank bottom plate, and the output end of the air cylinder one supports the inner wall of the vehicle body to make the protective cover slide on the outer wall of the guide rail one through the guide block, so that the protective cover is adjusted at the top of the vehicle body.

[0014] According to the above technical scheme, the detection block two is used for magnetic flux leakage scanning detection of the tank bottom plate, and the output end of the air cylinder two supports the inner wall of the support plate three to make the support plate three slide in the guide sleeve two through the guide rail two, so that the support plate three drives the detection block two to protrude from the outer wall of the support plate one to detect the tank bottom plate.

[0015] According to the above technical scheme, the inside of the telescopic rod two is provided with a spring and serves as a power source to support the support block two and drive the support block two to slide in the sliding groove two, and the support wheel protrudes from the outer wall of the support plate three through the support of the support block two, and is used for contact with the tank wall to support and protect the support plate three.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1. The magnetic flux leakage detector for the tank bottom plate under normal pressure adjusts the detection block one and the detection block two through the swing mechanism, so that the detection block one and the detection block two are more fitted to the edge of the tank bottom plate for magnetic flux leakage detection, preventing the magnetic flux leakage detector from being difficult to penetrate the edge, corner and part close to the tank wall of the tank bottom plate for magnetic flux leakage detection.

[0018] 2. The magnetic flux leakage detector for the tank bottom plate under normal pressure adjusts the protective cover on the top of the vehicle body in the opposite direction of the swing mechanism, so that when the vehicle body travels to the edge of the tank bottom plate, the handrail provided on the outer wall of the protective cover does not interfere with the tank wall, preventing the magnetic flux leakage detector from being unable to perform magnetic flux leakage detection at the edge and dead angle of the tank bottom plate.

[0019] 3. The magnetic flux leakage detector for the tank bottom plate under normal pressure supports and protects the detection block one and the detection block two through the adjusting mechanism, preventing the detection block one and the detection block two from colliding with the tank wall during the adjustment process, causing damage to the detection block one and the detection block two, and affecting the detection progress.

[0020] 4. The magnetic flux leakage detector for the tank bottom plate under normal pressure further adjusts the detection block two through the adjusting mechanism, so that the detection block two is more fitted to the edge of the tank bottom plate for magnetic flux leakage detection, so that the magnetic flux leakage detector can penetrate the edge, corner and complex structure part close to the tank wall of the tank bottom plate for magnetic flux leakage detection. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The figure is a structural schematic diagram of the present application.

[0022] Figure 2 Cross-sectional view of the present application Figure One ;

[0023] Figure 3 Cross-sectional view of the present application Figure Two ;

[0024] Figure 4 Cross-sectional view of the present application Figure Three ;

[0025] Figure 5 Structure diagram of the swing mechanism of the present application Figure One ;

[0026] Figure 6 Structure diagram of the swing mechanism of the present application Figure Two ;

[0027] Figure 7 Structure diagram of the adjustment mechanism of the present application Figure One ;

[0028] Figure 8 Structure diagram of the adjustment mechanism of the present application Figure Two .

[0029] In the figure: 1, vehicle body; 101, protective cover; 102, guide rail one; 103, air cylinder one; 104, sliding groove one; 105, support plate one; 106, guide sleeve one; 107, guide sleeve two; 108, detection block one; 109, guide block; 2, swing mechanism; 201, limiting plate; 202, support shaft; 203, telescopic rod one; 204, support sleeve; 205, support plate two; 206, support block one; 3, adjustment mechanism; 301, support plate three; 302, guide rail two; 303, air cylinder two; 304, telescopic rod two; 305, support block two; 306, support wheel; 307, detection block two; 308, sliding groove two. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Embodiment one, please refer to Figures 1-6 The present application provides a technical solution: a magnetic flux leakage detector for atmospheric storage tank bottom plate, comprising a vehicle body 1, a support plate one 105 is connected to the inner wall of the vehicle body 1 through a sliding block, a detection block one 108 is fixedly connected to the inner wall of the support plate one 105, and a swing mechanism 2 is arranged on the top of the vehicle body 1.

[0032] In the magnetic flux leakage detection process, the edge, corner and part close to the tank wall of the tank bottom plate are difficult for the moving mechanism and detection unit of the traditional detection equipment to penetrate due to narrow space and complex structure. The overall structural size and moving flexibility of the equipment limit its passage in such areas. The detection unit cannot approach the bottom plate surface for detection, resulting in the edge and wall connection, the inside of the corner and other areas becoming blind areas, which has a certain impact on the magnetic flux leakage detection. Therefore, the swing mechanism 2 is arranged to adjust the detection block one 108 and the detection block two 307, so that the detection block one 108 and the detection block two 307 are more close to the edge of the tank bottom plate for magnetic flux leakage detection.

[0033] The swing mechanism 2 comprises;

[0034] The inner wall of the limiting plate 201 is rotationally connected with a supporting shaft 202 through a bearing, the outer wall of the supporting shaft 202 is fixedly connected with a telescopic rod one 203, the outer wall of the telescopic rod one 203 is fixedly connected with a supporting sleeve 204, the outer wall of the supporting sleeve 204 is hingedly connected with a supporting plate two 205 through a rotating shaft, the outer wall of the telescopic rod one 203 is rotationally hingedly connected with a supporting block one 206 through a rotating shaft, the telescopic rod one 203 is supported through the supporting sleeve 204, and the supporting plate one 105 is driven to slide on the inner wall of the vehicle body 1 through the supporting block one 206. When the magnetic flux leakage detector is put into use on the bottom plate of the atmospheric storage tank, the magnetic flux leakage detector is moved to a suitable detection position of the bottom plate of the storage tank, a motor arranged in the vehicle body 1 is started to drive a roller arranged in the vehicle body 1 to rotate, the vehicle body 1 is driven to move on the bottom plate of the storage tank, the bottom plate of the storage tank is subjected to magnetic flux leakage detection through the detection block two 307 and the detection block one 108, when the vehicle body 1 travels to the edge portion of the bottom plate of the storage tank, the air cylinder one 103 is started, the air cylinder one 103 serves as a power source to support the inner wall of the vehicle body 1, the protective cover 101 is caused to slide on the outer wall of the guide rail one 102 through the guide block 109, the guide block 109 is guided through the guide rail one 102, the protective cover 101 and the handrails arranged on the outer wall of the protective cover 101 are adjusted, the handrails arranged on the outer wall of the protective cover 101 are prevented from interfering with the tank wall, while the air cylinder one 103 drives the protective cover 101 to adjust the positions of the handrails arranged on the outer wall of the protective cover 101, the limiting plate 201 is driven to adjust synchronously with the guide block 109 through the guide block 109, the telescopic rod one 203 is driven to swing through the supporting shaft 202, is stretched and adjusted in the process of swinging, the telescopic rod one 203 is limited through the supporting sleeve 204 and the supporting plate two 205, the telescopic rod one 203 is caused to swing through the supporting sleeve 204 with the supporting sleeve 204 and the supporting plate two 205 as the fulcrum, is stretched and adjusted in the process of swinging, the telescopic rod one 203 is caused to slide in the sliding groove one 104 through the supporting block one 206, the supporting plate one 105 is caused to slide on the inner wall of the vehicle body 1 through the supporting block one 206, is adjusted in the direction opposite to the limiting plate 201, the supporting plate one 105 is caused to guide and limit the guide sleeve one 106 through the inner wall of the vehicle body 1, and the adjusting mechanism 3 and the detection block one 108 are caused to protrude from the outer wall of the vehicle body 1 and are caused to abut against the dead angle of the edge of the storage tank to perform magnetic flux leakage detection, after the magnetic flux leakage detection on the edge of the bottom plate of the storage tank is completed, the air cylinder one 103 is retracted, the protective cover 101 is caused to slide on the outer wall of the guide rail one 102 through the guide block 109, the handrails are caused to return to the normal detection position, the guide block 109 drives the limiting plate 201 to adjust synchronously, the telescopic rod one 203 is caused to swing through the supporting shaft 202 to reset, the telescopic rod one 203 is caused to slide in the inner wall of the sliding groove one 104 through the supporting block one 206, the supporting plate one 105 is caused to slide on the inner wall of the vehicle body 1, the supporting plate one 105 is caused to drive the adjusting mechanism 3 and the detection block one 108 to retract into the vehicle body 1 to reset and normally travel to perform magnetic flux leakage detection on the bottom plate of the storage tank;

[0035] The top of the vehicle body 1 is fixedly connected with a guide rail one 102, the outer wall of the guide rail one 102 is slidably connected with a guide block 109, the outer wall of the guide block 109 is fixedly connected with the inner wall of a protective cover 101, the inner wall of the protective cover 101 is fixedly connected with a cylinder one 103, the output end of the cylinder one 103 penetrates through the inner wall of the protective cover 101 and is fixedly connected with the inner wall of the vehicle body 1, a sliding groove one 104 is formed in the inner wall of the vehicle body 1, a support plate one 105 is fixedly connected with a guide sleeve one 106 on the outer wall, the inner wall of the guide sleeve one 106 is slidably connected with the inner wall of the vehicle body 1 through a sliding block, the inner wall of the support plate one 105 is fixedly connected with a guide sleeve two 107, the guide rail one 102 is used for guiding the guide block 109, when the vehicle body 1 travels to the edge of the tank bottom plate, the cylinder one 103 is started, the protective cover 101 is supported by the cylinder one 103, the protective cover 101 slides on the outer wall of the guide rail one 102 through the guide block 109, and the guide block 109 is guided by the guide rail one 102, the protective cover 101 and the handrails arranged on the outer wall of the protective cover 101 are adjusted, the handrails arranged on the outer wall of the protective cover 101 are prevented from interfering with the tank wall, after the magnetic flux leakage detection of the edge of the tank bottom plate is completed, the cylinder one 103 is retracted, the protective cover 101 slides on the outer wall of the guide rail one 102 through the guide block 109, the handrails are driven to return to the normal detection position, and the magnetic flux leakage detector is reset to the initial state to detect the tank bottom plate;

[0036] The bottom of the support plate two 205 is fixedly connected with the top of the vehicle body 1, the bottom of the limiting plate 201 is fixedly connected with the outer wall of the guide block 109, the support plate two 205 is used for supporting and limiting the support sleeve 204, the bottom of the support block one 206 is fixedly connected with the top of the support plate one 105, the outer wall of the support block one 206 slides along the groove wall of the sliding groove one 104, when the cylinder one 103 drives the protective cover 101 to adjust the position of the handrails arranged on the outer wall of the protective cover 101, the limiting plate 201 is driven by the guide block 109 to be synchronously adjusted with the guide block 109, the limiting plate 201 drives the telescopic rod one 203 to swing through the support shaft 202, the telescopic rod one 203 is limited by the support sleeve 204 and the support plate two 205, the telescopic rod one 203 swings through the support sleeve 204 with the hinge between the support sleeve 204 and the support plate two 205 as a fulcrum, the telescopic rod one 203 drives the support block one 206 to slide in the sliding groove one 104, the support block one 206 drives the support plate one 105 to slide on the inner wall of the vehicle body 1 to adjust in the direction opposite to the limiting plate 201, the support plate one 105 guides and limits the guide sleeve one 106 through the inner wall of the vehicle body 1, and the support plate one 105 drives the adjusting mechanism 3 and the detection block one 108 to protrude from the outer wall of the vehicle body 1 and abut against the dead angle of the tank edge for magnetic flux leakage detection;

[0037] The guide sleeve two 107 guides the support plate three 301 through the guide rail two 302, the detection block one 108 is used for magnetic flux leakage scanning detection of the tank bottom plate, the output end of the cylinder one 103 supports the inner wall of the vehicle body 1, the protective cover 101 slides on the outer wall of the guide rail one 102 through the guide block 109, and the protective cover 101 is adjusted at the top position of the vehicle body 1; when the vehicle body 1 travels to the edge of the tank bottom plate, the cylinder one 103 is started, the protective cover 101 slides on the outer wall of the guide rail one 102 through the guide block 109, and the guide block 109 is guided by the guide rail one 102, so that the handrails arranged on the protective cover 101 and the outer wall of the protective cover 101 are adjusted, and interference between the handrails arranged on the outer wall of the protective cover 101 and the tank wall is prevented.

[0038] In the embodiment two, based on the embodiment one, please refer to Figures 7-8 The application provides a technical scheme that the support plate one 105 is internally provided with an adjusting mechanism 3.

[0039] When the vehicle body 1 travels to the edge of the tank bottom plate for magnetic flux leakage detection, the vehicle body 1 loses protection of the detection block one 108 and the detection block two 307, which causes the detection block one 108 and the detection block two 307 to collide with the tank wall, and the detection block one 108 and the detection block two 307 are damaged, so the adjusting mechanism 3 is arranged to support and protect the detection block one 108 and the detection block two 307, and the position of the detection block two 307 is further finely adjusted, so that the detection block two 307 is more attached to the edge of the tank bottom plate and magnetic flux leakage detection is performed.

[0040] The adjusting mechanism 3 comprises a support plate three 301, the surface of the support plate three 301 is fixedly connected with a guide rail two 302, the outer wall of the guide rail two 302 is in sliding connection with the inner wall of a guide sleeve two 107, the bottom of the support plate three 301 is fixedly connected with a detection block two 307, the inner wall of the support plate three 301 is fixedly connected with the output end of a cylinder two 303, the outer wall of the cylinder two 303 is fixedly connected with the inner wall of the support plate one 105, the support plate three 301 is in sliding connection with the inner wall of the support plate one 105 through the guide rail two 302, and is used to drive the detection block two 307 to adjust the detection position of the storage tank bottom plate; when the vehicle body 1 travels to the edge area of the storage tank bottom plate to carry out magnetic flux leakage detection, the position of the protective cover 101 is adjusted by the cylinder one 103, at the same time, the support block one 206 drives the support plate one 105 to protrude from the outer wall of the vehicle body 1 in the opposite direction of the protective cover 101 through the telescopic rod one 203, so that the detection block one 108 and the detection block two 307 abut the edge position of the storage tank bottom plate to carry out magnetic flux leakage detection; when the support block one 206 drives the support plate one 105 to drive the support plate three 301 and the detection block one 108 to adjust to the edge area of the storage tank, the cylinder two 303 is started, the cylinder two 303 drives the support plate three 301 as a power source, the support plate three 301 is in sliding connection with the inner wall of the guide sleeve two 107 through the guide rail two 302, and the detection block two 307 is driven to protrude from the outer wall of the support plate one 105, so that the support wheel 306 is in contact with the storage tank wall, the support wheel 306 supports the support block two 305 through the spring arranged in the telescopic rod two 304 as a power source, so that the support wheel 306 is in contact with the storage tank wall, the telescopic rod two 304 is extruded and drives the support block two 305 to slide in the sliding groove two 308, so as to buffer and prevent the cylinder two 303 from colliding with the storage tank wall during the detection position adjustment process of the detection block two 307 driven by the support plate three 301, and damaging the detection block two 307;

[0041] The sliding groove two 308 is provided with a sliding slot wall, the sliding slot wall is connected with the support block two 305 through the sliding block, the support plate three 301 is fixedly connected with the telescopic rod two 304, the telescopic rod two 304 is fixedly connected with the support block two 305 on the other end, the support block two 305 is rotatably connected with the support wheel 306 on the inner wall through the rotating shaft, the support block two 305 is used for supporting the support wheel 306, when the cylinder two 303 drives the support plate three 301 and drives the detection block two 307 to protrude from the outer wall of the support plate one 105, the support wheel 306 supports the support block two 305 through the telescopic rod two 304, so that the support plate three 301 drives the support wheel 306 to contact the tank wall in the adjustment process, the support wheel 306 supports the support block two 305 through the telescopic rod two 304, so that the support wheel 306 contacts the tank wall, extrudes the telescopic rod two 304 and drives the support block two 305 to slide in the sliding groove two 308, buffers, prevents the cylinder two 303 from driving the detection block two 307 to detect the position adjustment process through the support plate three 301 and collides with the tank wall;

[0042] The detection block two 307 is used for magnetic flux leakage scanning detection of the tank bottom plate, the output end of the cylinder two 303 supports the inner wall of the support plate three 301, so that the support plate three 301 slides in the inner wall of the guide sleeve two 107 through the guide rail two 302, so that the support plate three 301 drives the detection block two 307 to protrude from the outer wall of the support plate one 105 to detect the tank bottom plate, after the cylinder two 303 drives the detection block two 307 to adjust the position through the support plate three 301, the detection block two 307 is more attached to the edge of the tank bottom plate for magnetic flux leakage detection;

[0043] The telescopic rod two 304 is provided with a spring inside, used for supporting the support block two 305 and driving the support block two 305 to slide in the sliding groove two 308, the support wheel 306 protrudes from the outer wall of the support plate three 301 through the support of the support block two 305, used for contacting the tank wall to support and protect the support plate three 301, in the process of adjusting the detection position by the support plate three 301 driving the detection block two 307, the support wheel 306 contacts the tank wall, the spring inside the telescopic rod two 304 supports the support wheel 306 through the telescopic rod two 304, so that the support wheel 306 contacts the tank wall, the support block two 305 extrudes the telescopic rod two 304 through the support block two 305, and drives the support block two 305 to slide in the sliding groove two 308 for buffering, preventing the cylinder two 303 from driving the detection block two 307 to detect the position adjustment process through the support plate three 301 and colliding with the tank wall.

[0044] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A magnetic flux leakage detector for the bottom plate of an atmospheric pressure storage tank, comprising a vehicle body (1), wherein a support plate (105) is slidably connected to the inner wall of the vehicle body (1) via a slider, and a detection block (108) is fixedly connected to the inner wall of the support plate (105), characterized in that, The top of the vehicle body (1) is provided with a swing mechanism (2); The swing mechanism (2) includes; A limiting plate (201) is provided. The inner wall of the limiting plate (201) is rotatably connected to a support shaft (202) via a bearing. The outer wall of the support shaft (202) is fixedly connected to a telescopic rod (203). The outer wall of the telescopic rod (203) is fixedly connected to a support sleeve (204). The outer wall of the support sleeve (204) is hinged to a support plate (205) via a rotating shaft. The outer wall of the telescopic rod (203) is hinged to a support block (206) via a rotating shaft. The telescopic rod (203) is supported by the support sleeve (204) and is used to drive the support plate (105) to slide on the inner wall of the vehicle body (1) via the support block (206). The support plate 1 (105) is provided with an adjustment mechanism (3). The adjustment mechanism (3) includes a support plate 3 (301). A guide rail 2 (302) is fixedly connected to the surface of the support plate 3 (301). The outer wall of the guide rail 2 (302) is slidably connected to the inner wall of the guide sleeve 2 (107). A detection block 2 (307) is fixedly connected to the bottom of the support plate 3 (301). The inner wall of the support plate 3 (301) is fixedly connected to the output end of the cylinder 2 (303). The outer wall of the cylinder 2 (303) is fixedly connected to the inner wall of the support plate 1 (105). The support plate 3 (301) slides on the inner wall of the support plate 1 (105) through the guide rail 2 (302) to drive the detection block 2 (307) to adjust the detection position of the tank bottom plate. The surface of the support plate three (301) is provided with a sliding groove two (308). The wall of the sliding groove two (308) is slidably connected to a support block two (305) via a slider. The outer wall of the support plate three (301) is fixedly connected to a telescopic rod two (304). The other end of the telescopic rod two (304) is fixedly connected to the outer wall of the support block two (305). The inner wall of the support block two (305) is rotatably connected to a support wheel (306) via a rotating shaft. The support block two (305) is used to support the support wheel (306). The top of the vehicle body (1) is fixedly connected to a guide rail (102), and a guide block (109) is slidably connected to the outer wall of the guide rail (102). The outer wall of the guide block (109) is fixedly connected to the inner wall of the protective cover (101). A cylinder (103) is fixedly connected to the inner wall of the protective cover (101). The output end of the cylinder (103) passes through the inner wall of the protective cover (101) and is fixedly connected to the inner wall of the vehicle body (1). A sliding groove (104) is provided on the inner wall of the vehicle body (1). A guide sleeve (106) is fixedly connected to the outer wall of the support plate (105). The inner wall of the guide sleeve (106) is slidably connected to the inner wall of the vehicle body (1) through a slider. A guide sleeve (107) is fixedly connected to the inner wall of the support plate (105). The guide rail (102) is used to guide the guide block (109). The bottom of the second support plate (205) is fixedly connected to the top of the vehicle body (1), the bottom of the limiting plate (201) is fixedly connected to the outer wall of the guide block (109), the second support plate (205) is used to support and limit the support sleeve (204), the bottom of the first support block (206) is fixedly connected to the top of the first support plate (105), and the outer wall of the first support block (206) slides along the groove wall of the first sliding groove (104); The guide sleeve 2 (107) guides the support plate 3 (301) through the guide rail 2 (302). The detection block 1 (108) is used to perform magnetic leakage scanning detection on the bottom plate of the storage tank. The output end of the cylinder 1 (103) supports the inner wall of the vehicle body (1), so that the protective cover (101) slides on the outer wall of the guide rail 1 (102) through the guide block (109), and the protective cover (101) is adjusted at the top position of the vehicle body (1).

2. The magnetic flux leakage detector for the bottom plate of an atmospheric pressure storage tank according to claim 1, characterized in that: The second detection block (307) is used to perform magnetic flux leakage scanning detection on the bottom plate of the storage tank. The output end of the second cylinder (303) supports the inner wall of the third support plate (301), so that the third support plate (301) slides on the inner wall of the second guide sleeve (107) through the second guide rail (302), so that the third support plate (301) drives the second detection block (307) to protrude from the outer wall of the first support plate (105) to detect the bottom plate of the storage tank.

3. The magnetic flux leakage detector for the bottom plate of an atmospheric pressure storage tank according to claim 1, characterized in that: The telescopic rod 2 (304) is equipped with a spring inside to support the support block 2 (305) and drive the support block 2 (305) to slide in the sliding groove 2 (308). The support wheel (306) is supported by the support block 2 (305) and protrudes from the outer wall of the support plate 3 (301) to contact the tank pipe wall and support and protect the support plate 3 (301).

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