Magnetic flux leakage detector for bottom plate of atmospheric storage tank

Abstract

The invention relates to the technical field of magnetic variable detection equipment, and discloses a magnetic flux leakage detector for a bottom plate of an atmospheric storage tank, the magnetic flux leakage detector comprises a vehicle body, the inner wall of the vehicle body is slidably connected with a support plate I through a slide block, the inner wall of the support plate I is fixedly connected with a detection block I, and the top of the vehicle body is provided with a swing mechanism; the swing mechanism comprises a swing mechanism. A supporting shaft is rotatably connected to the inner wall of the limiting plate through a bearing, a first telescopic rod is fixedly connected to the outer wall of the supporting shaft, a supporting sleeve is fixedly connected to the outer wall of the first telescopic rod, a second supporting plate is connected to the outer wall of the supporting sleeve through a rotating shaft hinge, and a first supporting block is connected to the outer wall of the first telescopic rod through a rotating shaft rotating hinge. The first detection block and the second detection block are adjusted through the swing mechanism, so that the first detection block and the second detection block are more attached to the edge of the bottom plate of the storage tank for magnetic flux leakage detection, and the situation that a magnetic flux leakage detector is difficult to go deep into the edge of the bottom plate of the storage tank for magnetic flux leakage detection is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic variable detection equipment, in particular to a magnetic flux leakage detector for a bottom plate of a normal pressure storage tank. Background Art

[0002] Magnetic flux leakage testing is a testing method that applies a magnetic field to an object. When there are defects in the object, the magnetic field will change. By capturing this change, the internal or surface defects of the object can be identified. The defects can be accurately identified, providing a basis for judging the state of the object and promoting the evaluation and treatment of the object.

[0003] The patent application with application number CN202211344523.9 discloses a magnetic flux leakage detector, which includes a main body arranged on a bearing surface, with a gap between the main body and the bearing surface for placing the component to be tested, an excitation unit capable of generating a magnetic field is arranged on the main body, and a driving wheel and a driven wheel are arranged below the main body, wherein at least one shock-absorbing member capable of connecting with the bearing surface is also arranged below the main body, and the shock-absorbing member is connected to the main body by an elastic member.

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

[0005] The object of the present invention is to provide a magnetic flux leakage detector for the bottom plate of an atmospheric pressure storage tank to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a magnetic flux leakage detector for a bottom plate of an atmospheric pressure storage tank, comprising a body, the inner wall of the body being slidably connected to a support plate 1 via a slider, the inner wall of the support plate 1 being fixedly connected to a detection block 1, and a swing mechanism being provided on the top of the body; The swing mechanism comprises: The limit plate, the inner wall of the limit plate is rotatably connected to the support shaft through a bearing, the outer wall of the support shaft is fixedly connected to a telescopic rod 1, the outer wall of the telescopic rod 1 is fixedly connected to a support sleeve, the outer wall of the support sleeve is connected to a support plate 2 through a rotating shaft hinge, the outer wall of the telescopic rod 1 is connected to a support block 1 through a rotating shaft rotating hinge, the telescopic rod 1 is supported by the support sleeve, and is used to drive the support plate 1 to slide on the inner wall of the vehicle body through the support block 1, and a permanent magnet is arranged inside the detection block 1 to penetrate the magnetic field into the bottom plate of the tank, and the magnetic leakage detection is performed on the magnetic field generated by the detection block 1 on the bottom plate of the tank through the excitation component arranged inside the detection block 2.

[0007] According to the above technical solution, a guide rail 1 is fixedly connected to the top of the vehicle body, and a guide block is slidably connected to the outer wall of the guide rail 1, and the outer wall of the guide block is fixedly connected to the inner wall of the protective cover, and the inner wall of the protective cover is fixedly connected to a cylinder 1, and the output end of the cylinder 1 passes through the inner wall of the protective cover and is fixedly connected to the inner wall of the vehicle body. A sliding groove 1 is provided on the inner wall of the vehicle body, and a guide sleeve 1 is fixedly connected to the outer wall of the support plate 1, and the inner wall of the guide sleeve 1 is slidably connected to the inner wall of the vehicle body through a slider, and a guide sleeve 2 is fixedly connected to the inner wall of the support plate 1. The guide rail 1 is used to guide the guide block, and the cylinder 1 is connected to the air source provided inside the protective cover so that the cylinder 1 serves as a power source and can drive the protective cover to slide on the top of the vehicle body.

[0008] According to the above technical solution, the bottom of the second support plate is fixedly connected to the top of the vehicle body, the bottom of the limit plate is fixedly connected to the outer wall of the guide block, the second support plate is used to support and limit the support sleeve, the bottom of the first support block is fixedly connected to the top of the first support plate, and the outer wall of the first support block slides along the wall of the first sliding groove.

[0009] According to the above technical solution, an adjustment mechanism is provided inside the support plate 1, and the adjustment mechanism includes a support plate 3, a guide rail 2 is fixedly connected to the surface of the support plate 3, the outer wall of the guide rail 2 is slidably connected to the inner wall of the guide sleeve 2, and a detection block 2 is fixedly connected to the bottom of the support plate 3. The inner wall of the support plate 3 is fixedly connected to the output end of the cylinder 2, and the outer wall of the cylinder 2 is fixedly connected to the inner wall of the support plate 1. The support plate 3 slides on the inner wall of the support plate 1 through the guide rail 2, and is used to drive the detection block 2 to adjust the detection position of the tank bottom plate. The cylinder 2 is connected to the air source provided inside the protective cover, so that the cylinder 2 serves as a power source to drive the support plate 3 to slide on the inner wall of the support plate 1.

[0010] According to the above technical solution, a sliding groove 2 is provided on the surface of the support plate 3, and the wall of the sliding groove 2 is slidably connected to the support block 2 through a slider, and the outer wall of the support plate 3 is fixedly connected to the telescopic rod 2, and the other end of the telescopic rod 2 is fixedly connected to the outer wall of the support block 2, and the inner wall of the support block 2 is rotatably connected to the support wheel through a rotating shaft, and the support block 2 is used to support the support wheel.

[0011] According to the above technical solution, the guide sleeve 2 guides the support plate 3 through the guide rail 2, the detection block 1 is used to perform leakage magnetic scanning detection on the bottom plate of the tank, and the output end of the cylinder 1 supports the inner wall of the vehicle body, so that the protective cover slides on the outer wall of the guide rail 1 through the guide block, so that the position of the protective cover on the top of the vehicle body is adjusted.

[0012] According to the above technical solution, the detection block 2 is used to perform magnetic flux leakage scanning detection on the bottom plate of the storage tank. The output end of the cylinder 2 supports the inner wall of the support plate 3, so that the support plate 3 slides on the inner wall of the guide sleeve 2 through the guide rail 2, so that the support plate 3 drives the detection block 2 to protrude from the outer wall of the support plate 1 to detect the bottom plate of the storage tank.

[0013] According to the above technical solution, a spring is provided inside the telescopic rod 2, and serves as a power source to support the support block 2 and drive the support block 2 to slide in the sliding groove 2. The support wheel protrudes from the outer wall of the support plate 3 through the support block 2, and is used to contact the tank pipe wall to support and protect the support plate 3.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This magnetic flux leakage detector for atmospheric pressure storage tank bottom plate adjusts the detection block 1 and the detection block 2 through the swing mechanism, so that the detection block 1 and the detection block 2 are more closely attached to the edge of the tank bottom plate for magnetic flux leakage detection, preventing the magnetic flux leakage detector from having difficulty penetrating into the edge, corner and part close to the tank wall of the tank bottom plate for magnetic flux leakage detection.

[0015] 2. The magnetic flux leakage detector for the bottom plate of the atmospheric pressure storage tank slides on the top of the vehicle body through the protective cover and adjusts in the opposite direction of the swing mechanism. When the vehicle body moves to the edge of the tank bottom plate, the handrail set on the outer wall of the protective cover is prevented from interfering with the tank wall, resulting in the magnetic flux leakage detector being unable to perform magnetic flux leakage detection in blind spots such as the edge of the tank bottom plate.

[0016] 3. The magnetic flux leakage detector for the bottom plate of the atmospheric pressure storage tank supports and protects the detection block 1 and the detection block 2 through the adjustment mechanism to prevent the detection block 1 and the detection block 2 from colliding with the tank wall during the adjustment process, causing damage to the detection block 1 and the detection block 2 and affecting the detection progress.

[0017] 4. The magnetic flux leakage detector for the bottom plate of the atmospheric pressure storage tank can further fine-tune the detection block 2 through the adjustment mechanism to make the detection block 2 fit more closely to the edge of the tank bottom plate for magnetic flux leakage detection. This allows the magnetic flux leakage detector to penetrate deep into the edge, corners and complex structural parts of the tank bottom plate close to the tank wall for magnetic flux leakage detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 The cross-sectional view of the present invention Figure 1 ; Figure 3 The cross-sectional view of the present invention Figure 2 ; Figure 4 The cross-sectional view of the present invention Figure 3 ; Figure 5The structure diagram of the swing mechanism of the present invention is shown in FIG. Figure 1 ; Figure 6 The structure diagram of the swing mechanism of the present invention is shown in FIG. Figure 2 ; Figure 7 Schematic diagram of the structure of the adjustment mechanism of the present invention Figure 1 ; Figure 8 Schematic diagram of the structure of the adjustment mechanism of the present invention Figure 2 .

[0019] In the figure: 1. Car body; 101. Protective cover; 102. Guide rail 1; 103. Cylinder 1; 104. Sliding groove 1; 105. Support plate 1; 106. Guide sleeve 1; 107. Guide sleeve 2; 108. Detection block 1; 109. Guide block; 2. Swing mechanism; 201. Limit plate; 202. Support shaft; 203. Telescopic rod 1; 204. Support sleeve; 205. Support plate 2; 206. Support block 1; 3. Adjustment mechanism; 301. Support plate 3; 302. Guide rail 2; 303. Cylinder 2; 304. Telescopic rod 2; 305. Support block 2; 306. Support wheel; 307. Detection block 2; 308. Sliding groove 2. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] For example 1, please refer to Figures 1-6 The present invention provides a technical solution: a magnetic flux leakage detector for a bottom plate of an atmospheric pressure storage tank, comprising a body 1, an inner wall of the body 1 being slidably connected to a support plate 105 via a slider, an inner wall of the support plate 105 being fixedly connected to a detection block 108, and a swing mechanism 2 being provided on the top of the body 1; During the magnetic flux leakage detection process, the edges, corners and areas close to the tank wall of the tank bottom plate are difficult for the mobile mechanism and detection unit of traditional detection equipment to penetrate deeply due to the narrow space and complex structure. The overall structural size and mobile flexibility of the equipment limit its passage in such areas. The detection unit cannot get close to the bottom plate surface for detection, resulting in blind spots at the junction of the edge and the tank wall and the inner side of the corner, which has a certain impact on the magnetic flux leakage detection. Therefore, a swing mechanism 2 is set to adjust the detection block 108 and the detection block 2 307 so that the detection block 108 and the detection block 2 307 are more closely attached to the edge of the tank bottom plate for magnetic flux leakage detection; The swing mechanism 2 includes: The limiting plate 201, the inner wall of the limiting plate 201 is rotatably connected to the support shaft 202 through 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 connected to the support plate 205 through a rotating shaft hinge, the outer wall of the telescopic rod 203 is connected to a support block 206 through a rotating shaft hinge, 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 through the support block 206. When the magnetic flux leakage detector for the bottom plate of the atmospheric pressure storage tank is put into use, the magnetic flux leakage detector is moved to a suitable detection position on the bottom plate of the storage tank, and the motor provided inside the vehicle body 1 is started to drive the roller provided inside the vehicle body 1 to rotate, thereby driving the vehicle body 1 When the bottom plate of the storage tank moves, the leakage magnetic field detection of the bottom plate of the storage tank is carried out through the detection block 2 307 and the detection block 108. When the vehicle body 1 moves to the edge of the bottom plate of the storage tank, the cylinder 103 is started. The cylinder 103 serves as a power source to support the inner wall of the vehicle body 1, so that the protective cover 101 slides on the outer wall of the guide rail 102 through the guide block 109, and the guide rail 102 guides the guide block 109 to adjust the protective cover 101 and the handrails provided on the outer wall of the protective cover 101 to prevent the handrails provided on the outer wall of the protective cover 101 from interfering with the tank wall. When the cylinder 103 drives the protective cover 101 to adjust the position of the handrail provided on the outer wall of the protective cover 101, the limit plate 201 is driven by the guide block 109 and moves synchronously with the guide block 109. The telescopic rod 203 is adjusted step by step so that the limit plate 201 drives the telescopic rod 1 203 to swing through the support shaft 202, and is stretched and adjusted during the swinging process. At the same time, the telescopic rod 1 203 is limited by the support sleeve 204 and the support plate 2 205, so that the telescopic rod 1 203 swings through the support sleeve 204 with the hinge between the support sleeve 204 and the support plate 2 205 as the fulcrum, and is stretched and adjusted during the swinging process, so that the telescopic rod 1 203 drives the support block 1 206 to slide in the sliding groove 104, and drives the support plate 105 to slide on the inner wall of the vehicle body 1 in the opposite direction of the limit plate 201 through the support block 1 206, so that the support plate 105 guides the guide sleeve 106 through the inner wall of the vehicle body 1, and the support plate 105 drives the adjustment mechanism The structure 3 and the detection block 108 protrude from the outer wall of the vehicle body 1 and fit the blind spot of the edge of the storage tank for magnetic flux leakage detection. After the magnetic flux leakage detection of the edge of the tank bottom plate is completed, the cylinder 103 is retracted, so that the protective cover 101 slides on the outer wall of the guide rail 102 through the guide block 109, driving the handrail to restore to the normal detection position. At the same time, the guide block 109 drives the limit plate 201 to adjust synchronously, and drives the telescopic rod 203 to swing and reset through the support shaft 202, so that the telescopic rod 203 drives the support block 206 to slide on the inner wall of the sliding groove 104, and drives the support plate 105 to slide on the inner wall of the vehicle body 1, so that the support plate 105 drives the adjustment mechanism 3 and the detection block 108 to be retracted into the vehicle body 1 for reset, and then moves normally to perform magnetic flux leakage detection on the tank bottom plate; The top of the car body 1 is fixedly connected with a guide rail 102, and the outer wall of the guide rail 102 is slidably connected with a guide block 109. The outer wall of the guide block 109 is fixedly connected to the inner wall of the protective cover 101, and the inner wall of the protective cover 101 is fixedly connected with a cylinder 103. 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 car body 1. A sliding groove 104 is provided on the inner wall of the car body 1. The outer wall of the support plate 105 is fixedly connected with a guide sleeve 106. The inner wall of the guide sleeve 106 is slidably connected to the inner wall of the car body 1 through a slider. The inner wall of the support plate 105 is fixedly connected with a guide sleeve 2 107. The guide rail 102 is used to guide the guide block 109, and the car body 1 moves to the storage When the tank bottom plate is at the edge, the cylinder 103 is started, and the inner wall of the vehicle body 1 is supported by the cylinder 103, so that the protective cover 101 slides on the outer wall of the guide rail 102 through the guide block 109, and the guide rail 102 guides the guide block 109 to adjust the protective cover 101 and the handrail provided on the outer wall of the protective cover 101 to prevent the handrail provided on the outer wall of the protective cover 101 from interfering with the tank wall. After the magnetic flux leakage test of the tank bottom plate edge is completed, the cylinder 103 is retracted, so that the protective cover 101 slides on the outer wall of the guide rail 102 through the guide block 109, driving the handrail to return to the normal testing position, and the magnetic flux leakage detector is reset to the initial state, and the tank bottom plate is tested; The bottom of the support plate 205 is fixedly connected to the top of the vehicle body 1, the bottom of the limit plate 201 is fixedly connected to the outer wall of the guide block 109, the support plate 205 is used to support and limit the support sleeve 204, the bottom of the support block 1 206 is fixedly connected to the top of the support plate 105, and the outer wall of the support block 1 206 slides along the wall of the sliding groove 104. When the cylinder 103 drives the protective cover 101 to adjust the position of the handrail set on the outer wall of the protective cover 101, the limit plate 201 is driven by the guide block 109 and adjusted synchronously with the guide block 109, so that the limit plate 201 drives the telescopic rod 1 203 to swing through the support shaft 202, and the telescopic rod 2 03 is limited by the support sleeve 204 and the support plate 205, so that the telescopic rod 1 203 passes through the support sleeve 204 and swings with the hinge of the support sleeve 204 and the support plate 205 as the fulcrum, so that the telescopic rod 1 203 drives the support block 1 206 to slide in the sliding groove 104, and drives the support plate 105 to slide on the inner wall of the vehicle body 1 in the opposite direction of the limit plate 201 through the support block 1 206, so that the support plate 105 guides the guide sleeve 106 through the inner wall of the vehicle body 1, and drives the adjustment mechanism 3 and the detection block 108 to protrude from the outer wall of the vehicle body 1, and fit the blind spot of the edge of the storage tank for magnetic flux leakage detection; The guide sleeve 107 guides the support plate 301 through the guide rail 2 302, and the detection block 108 is used to perform leakage magnetic scanning detection on the bottom plate of the tank. The output end of the cylinder 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 102 through the guide block 109, and the position of the protective cover 101 on the top of the vehicle body 1 is adjusted. When the vehicle body 1 moves to the edge of the bottom plate of the tank, the cylinder 103 is started, and the support of the inner wall of the vehicle body 1 by the cylinder 103 is used to make the protective cover 101 slide on the outer wall of the guide rail 102 through the guide block 109, and the guidance of the guide block 109 by the guide rail 102 is used to adjust the protective cover 101 and the handrails provided on the outer wall of the protective cover 101 to prevent the handrails provided on the outer wall of the protective cover 101 from interfering with the tank wall.

[0022] Example 2, based on Example 1, please refer to Figure 7-Figure 8 , the present invention provides a technical solution: an adjustment mechanism 3 is provided inside the support plate 105; When the vehicle body 1 moves to the edge of the tank bottom plate for magnetic flux leakage detection, the vehicle body 1 loses the protection of the detection block 108 and the detection block 2 307, which will cause the detection block 108 and the detection block 2 307 to contact and collide with the tank wall, resulting in damage to the detection block 108 and the detection block 2 307. Therefore, the adjustment mechanism 3 is provided to support and protect the detection block 108 and the detection block 2 307, and at the same time, the position of the detection block 2 307 is further fine-tuned to make the detection block 2 307 more closely fit the edge of the tank bottom plate for magnetic flux leakage detection; The adjustment mechanism 3 includes a support plate 301, a guide rail 2 302 is fixedly connected to the surface of the support plate 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 301, the inner wall of the support plate 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, and the support plate 301 slides on the inner wall of the support plate 1 105 through the guide rail 2 302 , used to drive the detection block 2 307 to adjust the detection position of the tank bottom plate. When the vehicle body 1 moves to the edge area of ​​the tank bottom plate for magnetic flux leakage detection, the protective cover 101 is driven to adjust its position by the cylinder 103. At the same time, the support block 1 206 is driven by the telescopic rod 1 203 to adjust synchronously in the opposite direction of the protective cover 101, so that the support block 1 206 drives the support plate 1 105 to protrude from the outer wall of the vehicle body 1, so that the detection block 108 is in contact with the detection block 2 307. The edge of the bottom plate of the storage tank is combined for magnetic flux leakage detection. When the support block 1 206 drives the support plate 3 301 and the detection block 1 108 to adjust to the edge area of ​​the storage tank through the support plate 1 105, the cylinder 2 303 is started. The cylinder 2 303 acts as a power source to drive the support plate 3 301, so that the support plate 3 301 slides on the inner wall of the guide sleeve 2 107 through the guide rail 2 302, and drives the detection block 2 307 to protrude from the outer wall of the support plate 105, so that the support wheel 306 is aligned with the tank wall. The support wheel 306 supports the second support block 305 through the spring provided inside the second telescopic rod 304 as a power source, so that after the support wheel 306 contacts the tank wall, it squeezes the second telescopic rod 304 and drives the second support block 305 to slide in the second sliding groove 308 to provide a buffer, thereby preventing the second cylinder 303 from driving the second detection block 307 through the third support plate 301 to adjust the detection position and colliding with the tank wall, thereby damaging the second detection block 307; The surface of the support plate 301 is provided with a sliding groove 2 308, and the wall of the sliding groove 2 308 is slidably connected to the support block 2 305 through a slider. The outer wall of the support plate 301 is fixedly connected to the telescopic rod 2 304, and the other end of the telescopic rod 2 304 is fixedly connected to the outer wall of the support block 2 305. The inner wall of the support block 2 305 is rotatably connected to the support wheel 306 through a rotating shaft. The support block 2 305 is used to support the support wheel 306. When the cylinder 2 303 drives the support plate 301 and drives the detection block 2 307 to protrude from the outer wall of the support plate 1 105, the support The support wheel 306 supports the support block 2 305 through the telescopic rod 2 304, so that the support plate 301 drives the support wheel 306 to contact the tank wall during the adjustment process. The support wheel 306 supports the support block 2 305 through the telescopic rod 2 304, so that after the support wheel 306 contacts the tank wall, the telescopic rod 2 304 is squeezed and the support block 2 305 is driven to slide in the sliding groove 2 308 to provide a buffer, thereby preventing the cylinder 2 303 from driving the detection block 2 307 through the support plate 301 to collide with the tank wall during the detection position adjustment process. 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. After the second cylinder 303 drives the second detection block 307 to adjust its position through the third support plate 301, the second detection block 307 is more closely attached to the edge of the bottom plate of the storage tank for magnetic flux leakage detection. The second telescopic rod 304 is provided with a spring inside to support the support block 305 and drive the support block 305 to slide in the sliding groove 308. The support wheel 306 is supported by the support block 305 and protrudes from the outer wall of the support plate 301 to contact the tank pipe wall and support and protect the support plate 301. In the process of the support plate 301 driving the detection block 2 307 to adjust the detection position, the support wheel 306 is in contact with the tank wall. The spring provided inside the telescopic rod 304 is used to support the support block 2 305 through the telescopic rod 304. After the support wheel 306 contacts the tank wall, the telescopic rod 304 is squeezed by the support block 2 305, and the support block 2 305 is driven to slide in the sliding groove 308 for buffering, thereby preventing the cylinder 2 303 from colliding with the tank wall during the process of driving the detection block 2 307 to adjust the detection position through the support plate 301.

[0023] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic flux leakage detector for a bottom plate of an atmospheric pressure storage tank, comprising a vehicle body (1), wherein the inner wall of the vehicle body (1) is slidably connected to a support plate (105) via a slider, and the inner wall of the support plate (105) is fixedly connected to a detection block (108), characterized in that: A swing mechanism (2) is provided on the top of the vehicle body (1); The swing mechanism (2) comprises: A limit plate (201), wherein the inner wall of the limit 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 connected to a support plate (205) via a rotating shaft hinge, the outer wall of the telescopic rod (203) is connected to a support block (206) via a rotating shaft hinge, 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).

2. The magnetic flux leakage detector for the bottom plate of an atmospheric pressure storage tank according to claim 1, characterized in that: The top of the vehicle body (1) is fixedly connected to a guide rail 1 (102), the outer wall of the guide rail 1 (102) is slidably connected to a guide block (109), the outer wall of the guide block (109) is fixedly connected to the inner wall of the protective cover (101), the inner wall of the protective cover (101) is fixedly connected to a cylinder 1 (103), the output end of the cylinder 1 (103) passes through the inner wall of the protective cover (101) and is fixedly connected to the inner wall of the vehicle body (1), the inner wall of the vehicle body (1) is provided with a sliding groove 1 (104), the outer wall of the support plate 1 (105) is fixedly connected to a guide sleeve 1 (106), the inner wall of the guide sleeve 1 (106) is slidably connected to the inner wall of the vehicle body (1) through a slider, the inner wall of the support plate 1 (105) is fixedly connected to a guide sleeve 2 (107), and the guide rail 1 (102) is used to guide the guide block (109).

3. The magnetic flux leakage detector for the bottom plate of an atmospheric pressure storage tank according to claim 2, characterized in that: The bottom of the second support plate (205) is fixedly connected to the top of the vehicle body (1), the bottom of the limit 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 wall of the sliding groove (104).

4. The magnetic flux leakage detector for the bottom plate of an atmospheric pressure storage tank according to claim 1, characterized in that: An adjustment mechanism (3) is provided inside the support plate 1 (105), and 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), an 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), an inner wall of the support plate 3 (301) is fixedly connected to the output end of the cylinder 2 (303), an outer wall of the cylinder 2 (303) is fixedly connected to the inner wall of the support plate 1 (105), and the support plate 3 (301) slides on the inner wall of the support plate 1 (105) through the guide rail 2 (302), so as to drive the detection block 2 (307) to adjust the detection position of the tank bottom plate.

5. The magnetic flux leakage detector for the bottom plate of an atmospheric pressure storage tank according to claim 4, characterized in that: The surface of the support plate three (301) is provided with a sliding groove two (308), the groove wall of the sliding groove two (308) is slidably connected to the support block two (305) through a slider, the outer wall of the support plate three (301) is fixedly connected to the 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 the support wheel (306) through a rotating shaft, and the support block two (305) is used to support the support wheel (306).

6. The magnetic flux leakage detector for the bottom plate of an atmospheric pressure storage tank according to claim 2, characterized in that: 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 flux leakage scanning detection on the bottom plate of the storage tank, and 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), so that the position of the protective cover (101) on the top of the vehicle body (1) is adjusted.

7. The magnetic flux leakage detector for the bottom plate of an atmospheric pressure storage tank according to claim 4, characterized in that: The detection block 2 (307) is used to perform magnetic flux leakage scanning detection on the bottom plate of the storage tank. The output end of the cylinder 2 (303) supports the inner wall of the support plate 3 (301), so that the support plate 3 (301) slides on the inner wall of the guide sleeve 2 (107) through the guide rail 2 (302), so that the support plate 3 (301) drives the detection block 2 (307) to protrude from the outer wall of the support plate 1 (105) to detect the bottom plate of the storage tank.

8. The magnetic flux leakage detector for the bottom plate of an atmospheric pressure storage tank according to claim 5, characterized in that: The second telescopic rod (304) is provided with a spring inside to support the second support block (305) and drive the second support block (305) to slide in the second sliding groove (308). The support wheel (306) is supported by the second support block (305) and protrudes from the outer wall of the third support plate (301) to contact the wall of the storage tank pipe and support and protect the third support plate (301).

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