A magnetic flux leakage detection device for portable pressure-bearing equipment with a self-cleaning structure

Abstract

The present invention discloses a magnetic flux leakage detection device for a portable pressure-bearing device with a self-cleaning structure, including a magnetic flux leakage detection structure serving as the body. A cleaning structure for automatically cleaning the surfaces of the components of the magnetic flux leakage detection structure is provided on the magnetic flux leakage detection structure. The cleaning structure is provided with a moving structure at the bottom of the magnetic flux leakage detection structure to assist in carrying and moving the magnetic flux leakage detection structure. The magnetic flux leakage detection structure includes a body component as the basis. A detection component for detecting different pressure-bearing devices is movably provided on the body component. The body component includes a magnetic flux leakage detection stage for receiving and detecting magnetic flux signals. An anti-collision head for preventing collision of the magnetic flux leakage detection stage is provided at one end of the magnetic flux leakage detection stage. The anti-collision head is movably provided with a power supply stage through the magnetic flux leakage detection stage and a universal structure. This magnetic flux leakage detection device for a portable pressure-bearing device with a self-cleaning structure can achieve flexible steering and adjustment effects between the control stage and the power supply stage through the universal joint.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic flux leakage detection devices, and particularly to a magnetic flux leakage detection device for pressure-bearing equipment with a self-cleaning structure and portability. Background Art

[0002] In fields such as petroleum, chemical industry, coal chemical industry, metallurgy, electric power, and oil and gas transportation, there are a large number of pressure-bearing equipment, such as valves, pressure vessels, and pressure pipelines. Pipelines are one of the main ways to transport oil and natural gas. To ensure the safety of pipeline use, currently, a pipeline magnetic flux leakage detection device is usually installed in the oil pipeline to detect the pipe wall of the oil pipeline, so as to determine the degree and specific location of damage to the oil pipeline. In the existing pipeline magnetic flux leakage detection devices, both the permanent magnet and the probe are fixed structures. When used in pipelines of different sizes, the permanent magnet and the probe of the magnetic flux leakage detection device for small-sized pipelines cannot closely adhere to the pipe wall of large-sized pipelines, resulting in low detection accuracy. At the same time, due to the use of metal materials in the existing magnetic flux leakage detection devices, the overall weight of the magnetic flux leakage detection device is too heavy, making it inconvenient to move and carry. In addition, in the existing magnetic flux leakage detection devices, during long-term use, since the detection components are exposed to the outside for a long time, a large amount of dust is easily adhered to the surface of the detection components. When a large amount of dust adheres to the detection components, it not only affects the normal operation of the detection components but also may affect the detection accuracy of the detection components. Summary of the Invention

[0003] The purpose of the present invention is to provide a magnetic flux leakage detection device for pressure-bearing equipment with a self-cleaning structure and portability in view of the deficiencies of the prior art, so as to solve the problems mentioned in the above background art. In the existing pipeline magnetic flux leakage detection devices, both the permanent magnet and the probe are fixed structures. When used in pipelines of different sizes, the permanent magnet and the probe of the magnetic flux leakage detection device for small-sized pipelines cannot closely adhere to the pipe wall of large-sized pipelines, resulting in low detection accuracy. At the same time, due to the use of metal materials in the existing magnetic flux leakage detection devices, the overall weight of the magnetic flux leakage detection device is too heavy, making it inconvenient to move and carry. In addition, in the existing magnetic flux leakage detection devices, during long-term use, since the detection components are exposed to the outside for a long time, a large amount of dust is easily adhered to the surface of the detection components. When a large amount of dust adheres to the detection components, it not only affects the normal operation of the detection components but also may affect the detection accuracy of the detection components.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A magnetic flux leakage detection device for pressure-bearing equipment with a self-cleaning structure and portability, including a magnetic flux leakage detection structure as the body. A cleaning structure for automatically cleaning the surface of the components of the magnetic flux leakage detection structure is provided on the magnetic flux leakage detection structure. The cleaning structure is provided with a moving structure at the bottom of the magnetic flux leakage detection structure to assist in moving and carrying the magnetic flux leakage detection structure.

[0005] The magnetic flux leakage detection structure includes a body component as the basis, on which a detection component for detecting different pressure-bearing devices is movably arranged. The body component includes a magnetic flux leakage detection stage for receiving and detecting magnetic flux leakage signals. One end of the magnetic flux leakage detection stage is provided with an anti-collision head to prevent collision of the magnetic flux leakage detection stage. The anti-collision head is movably provided with a power supply stage through the magnetic flux leakage detection stage and a universal structure. The power supply stage is also movably provided with a control stage through the universal joint. The control stage is movably provided with a mileage wheel through a mounting post with a groove and a through hole, and the mileage wheels are elastically connected by a connecting spring.

[0006] By adopting the above technical solution, the flexible steering adjustment effect between the control stage and the power supply stage is achieved through the universal joint.

[0007] Preferably, the magnetic flux leakage detection structure includes a detection component. The detection component includes a mounting seat connected with a groove and a through hole. The mounting seat is movably arranged with a connecting rod with through holes at both ends through a connecting pin and a torsion spring. The connecting rod is also movably arranged with a connecting seat with a fixed seat at the bottom through a connecting pin and a torsion spring.

[0008] By adopting the above technical solution, the elastic compression and elastic drive reset effects are achieved through the torsion spring.

[0009] Preferably, the detection component includes a connecting seat. The connecting seat is symmetrically provided with magnet blocks with through holes. A magnetic conduction gasket with a through hole is also installed on the magnet block. A sensor module with a through hole in sequence is arranged between the magnetic conduction gaskets. The sensor module and the connecting seat are installed by fixing bolts.

[0010] By adopting the above technical solution, the quick installation and disassembly effect between the magnet block, the magnetic conduction gasket and the sensor module is achieved through the connecting seat.

[0011] Preferably, the cleaning structure includes an adjustment driving component for installing and adjusting the cleaning component. The adjustment driving component includes mounting bearings symmetrically arranged on the surface of the magnetic flux leakage detection stage. A fixed disk for installing and adjusting the components of the cleaning component is fixed on the surface of the mounting bearing. A gear disk for driving adjustment is provided between the fixed disks through a driving rod.

[0012] By adopting the above technical solution, the connecting and rotating adjustment effect is achieved through the connecting rod.

[0013] Preferably, the driving component includes a connecting shaft with a driving gear on the surface, and the connecting shaft is adjusted and driven by a driving motor.

[0014] By adopting the above technical solution, the meshing drive adjustment effect with the gear disk is achieved through the driving gear.

[0015] Preferably, the cleaning assembly includes a plurality of mounting cylinders arranged on the surface of the fixed disk. A connecting spring for vertical movement adjustment is provided inside the mounting cylinder. The connecting spring is provided with a hydraulic telescopic rod for vertical adjustment inside the mounting cylinder through a connecting plate. The hydraulic telescopic rod is provided with a fixing plate with a through groove. The fixing plate is provided with soft brushes for cleaning the components of the magnetic leakage detection structure through the through groove and the bottom.

[0016] By adopting the above technical solution, the hydraulic telescopic rod is used to lift and adjust the connecting plate.

[0017] Preferably, the moving structure includes a force-bearing plate with an arc shape. A buffer pad for preventing the components of the magnetic leakage detection structure from moving and sliding is provided inside the force-bearing plate. The buffer pad is symmetrically provided with a plurality of shock absorbers through the bottom of the force-bearing plate. The bottom of the shock absorber is provided with movable wheels for conveniently moving and carrying the magnetic leakage detection structure.

[0018] By adopting the above technical solution, the buffer pad is used to provide force support and increase the frictional resistance of the force-bearing movement.

[0019] Preferably, the connection shape of the mounting bearing, the fixed disk, the driving rod, and the gear disk is in a drum shape.

[0020] By adopting the above technical solution, the mounting bearing is used to achieve the installation and rotational connection of the inner and outer rings.

[0021] Preferably, the overall shape of the fixing plate is an equilateral trapezoid, and the fixing plate is made of wear-resistant high molecular polyethylene material.

[0022] By adopting the above technical solution, the connecting plate is used to drive and adjust the force.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: The magnetic leakage detection device for the self-cleaning structure and portable pressure-bearing equipment,

[0024] (1) A magnetic leakage detection structure is provided. By using the detection components provided in the magnetic leakage detection structure, when the magnetic conductive gasket is stressed against the inner walls of different pipelines, the connecting seat is driven to move. During the force-bearing movement of the connecting seat, the fixed seat is driven. During the force-bearing movement of the fixed seat, the torsion spring is used to drive the connecting rod and the mounting seat to rotate relative to each other under force. And the relative rotational movement of the connecting rod and the mounting seat under force also drives the rotation of another torsion spring. By changing the force-bearing inclination angle of the connecting seat, the magnetic conductive gasket and the sensor module are brought into contact with different pipe walls to perform magnetic leakage detection on different pipelines. By using the above structure, it is possible to avoid the situation in the existing pipeline magnetic leakage detection device where the permanent magnet and the probe are both fixed structures. When used in pipelines of different sizes, the permanent magnet and the probe of the magnetic leakage detection device for small-sized pipelines cannot closely adhere to the pipe wall of large-sized pipelines, resulting in low detection accuracy.

[0025] (2) A moving structure is provided. When the overall device needs to be carried, the operator places the force-bearing plate at the bottom of the magnetic flux leakage detection structure. When the force-bearing plate is placed at the bottom of the components of the magnetic flux leakage detection structure, the force-bearing plate supports the entire magnetic flux leakage detection structure through the shock absorber and the movable wheels. At this time, the operator manually pushes the magnetic flux leakage detection structure to move under force. During the process of the magnetic flux leakage detection structure moving under force, the movable wheels are driven to move by the force-bearing plate and the shock absorber. During the process of the movable wheels moving under force, the entire device is driven to move and be carried. Moreover, the overall moving structure is arranged in a decentralized manner, and at the same time, it is ensured that during the process of the magnetic flux leakage detection structure moving and turning, the moving structure does not cause movement interference to the turning of the magnetic flux leakage detection structure, thereby reflecting the flexibility and the installation and disassembly effect of the overall moving structure. Again, through the moving structure, the situation that the overall magnetic flux leakage detection device is too heavy to be conveniently moved and carried is avoided;

[0026] (3) A cleaning structure is provided. Using the cleaning components provided in the cleaning structure, the operator controls the hydraulic telescopic rod to work during the control stage. During the working process of the hydraulic telescopic rod, the connecting plate is driven to move. During the process of the connecting plate moving under force, the soft brush is driven to move up and down. During the process of the soft brush moving up and down, the periphery of the components of the detection component is cleaned. At the same time, when the cleaning components cooperate with the adjustment of the driving components during the working process, the driving motor drives the connecting shaft to move. During the process of the connecting shaft moving, the gear disk is driven to rotate. During the process of the gear disk rotating, the fixed disk is driven to rotate. During the process of the fixed disk rotating, the cleaning components and the components of the detection component are driven to rotate relative to each other. During the process of the soft brush moving under force and rotating, not only a fast rotating cleaning effect is achieved on the components of the detection component, but also the rotating wind generated during the rotation of the soft brush is used to blow the dust after cleaning out of the surface of the components of the detection component. By using the above structures in sequence, the problem that when a large amount of dust adheres to the detection components, it not only affects the normal work of the detection components but also may affect the detection accuracy of the detection components is avoided. Brief Description of the Drawings

[0027] Figure 1 It is a front view sectional structure schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the magnetic flux leakage detection structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the body component structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the detection component structure of the present invention;

[0031] Figure 5 It is a schematic diagram of the cleaning structure of the present invention;

[0032] Figure 6 It is a schematic diagram of the adjustment driving component structure of the present invention;

[0033] Figure 7 Schematic diagram of the cleaning component structure of the present invention;

[0034] Figure 8 For the present invention Figure 7 Enlarged structure diagram at position A in the present invention;

[0035] Figure 9 Schematic diagram of the structure for installing bearings, fixing plates and driving rods of the present invention;

[0036] Figure 10 Schematic diagram of the moving structure of the present invention.

[0037] In the figure: 1. Magnetic leakage detection structure; 101. Body component; 1011. Magnetic leakage detection stage; 1012. Anti-collision head; 1013. Power stage; 1014. Control stage; 1015. Mounting column; 1016. Odometer wheel; 1017. Connecting spring; 102. Detection component; 1021. Mounting seat; 1022. Torsion spring; 1023. Connecting rod; 1024. Connecting seat; 1025. Fixed seat; 1026. Magnetic conductive gasket; 1027. Sensor module; 1028. Magnet block; 2. Cleaning structure; 201. Adjusting drive component; 2011. Mounting bearing; 2012. Fixed plate; 2013. Driving rod; 2014. Gear disk; 2015. Connecting shaft; 2016. Driving gear; 2017. Driving motor; 202. Cleaning component; 2021. Mounting cylinder; 2022. Connecting spring; 2023. Connecting plate; 2024. Hydraulic telescopic rod; 2025. Fixed plate; 2026. Soft brush; 3. Moving structure; 301. Force-bearing plate; 302. Buffer pad; 303. Shock absorber; 304. Movable wheel. Detailed implementation manners

[0038] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1-10 , the present invention provides a technical solution: A magnetic leakage detection device for a portable pressure-bearing device with a self-cleaning structure, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, it includes a magnetic flux leakage detection structure 1 as the body. The magnetic flux leakage detection structure 1 includes a body component 101 as the basis. A detection component 102 for detecting different pressure-bearing devices is movably arranged on the body component 101. The body component 101 includes a magnetic flux leakage detection stage 1011 for receiving and detecting magnetic flux leakage signals. One end of the magnetic flux leakage detection stage 1011 is provided with an anti-collision head 1012 to prevent the magnetic flux leakage detection stage 1011 from colliding. The anti-collision head 1012 is movably provided with a power supply stage 1013 through the magnetic flux leakage detection stage 1011 and a universal structure. The power supply stage 1013 is also movably provided with a control stage 1014 through a universal joint. The control stage 1014 is movably provided with a mileage wheel 1016 through a mounting post 1015 with a groove through hole. The mileage wheels 1016 are elastically connected by a connecting spring 1017. The mounting post 1015 and the mileage wheel 1016 are arranged in a movable Y-shaped structure. When using the movable Y-shaped structure for setting, it is not only convenient for the mileage wheel 1016 to adapt to pipes with different diameters for rolling operation, but also avoids the fixation between the mileage wheel 1016 and the mounting post 1015, thus affecting the normal driving operation and detection of the overall magnetic flux leakage detection structure 1.

[0040] Furthermore, the magnetic flux leakage detection structure 1 includes a detection component 102. The detection component 102 includes a mounting seat 1021 connected with a groove through hole. The mounting seat 1021 is movably arranged with a connecting rod 1023 with through holes at both ends through a connecting pin and a torsion spring 1022. The connecting rod 1023 is also movably arranged with a connecting seat 1024 with a fixed seat 1025 at the bottom through a connecting pin and a torsion spring 1022.

[0041] Preferably, there are 4 groups of 8 mounting seats 1021. By arranging 8 such mounting seats 1021, not only are they effectively distributed symmetrically about the center line on one side of the magnetic flux leakage detection stage 1011, but also the 8 mounting seats 1021 are used to enable the detection component 102 to be flexibly installed around the surface of the magnetic flux leakage detection stage 1011. At the same time, 1 group of torsion springs 1022 is arranged in a single mounting seat 1021 to be installed with one end of the connecting rod 1023. The 1 group of torsion springs 1022 arranged not only has a strong elastic restoring force effect, but also avoids the situation that a single torsion spring 1022 is over-fatigued during long-term use and breaks, resulting in the detection component 102 being unable to elastically recover. In turn, the torsion spring 1022 is installed using the torsion spring 1022 in the existing technical structure, so as to ensure the flexible force adjustment effect of the detection component 102.

[0042] Further, in the above solution, the detection component 102 includes a connection base 1024. The connection base 1024 is symmetrically provided with magnet blocks 1028 with through holes. A magnetic conduction gasket 1026 with a through hole is installed on the magnet block 1028. A sensor module 1027 with a through hole in sequence is arranged between the magnetic conduction gaskets 1026. The sensor module 1027 and the connection base 1024 are installed by fixing bolts. Among them, the connection base 1024, the magnet blocks 1028, the magnetic conduction gaskets 1026, and the sensor module 1027 are all arranged in the above structure with through holes, and the above structure with holes is used to facilitate the quick installation and disassembly effect between the above components and the connection base 1024.

[0043] In the above solution, when the magnetic leakage detection stage 1011 uses the anti-collision head 1012 to enter the pipeline, at this time, the magnetic conduction gasket 1026 and the sensor module 1027 are stressed and drive the connection base 1024 to move through the magnet block 1028. During the force movement of the connection base 1024, the fixing base 1025 and the torsion spring 1022 drive the connecting rod 1023 and the mounting base 1021 to rotate relative to each other under force. When the magnetic leakage detection stage 1011 completely enters the pipeline, at this time, the above structure uses the elastic recovery of the torsion spring 1022 to contact the inner wall of the pipeline. When the power stage 1013, the control stage 1014, the mounting column 1015, the mileage wheel 1016, and the connecting spring 1017 all completely enter the pipeline, at this time, the operator uses an external controller to control the above device structure, and the above device is stressed by the liquid in the pipeline to detect the magnetic leakage of the inner wall of the pipeline.

[0044] Such as Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown in the figure, a cleaning structure 2 for automatically cleaning the surface of the components of the magnetic flux leakage detection structure 1 is provided on the magnetic flux leakage detection structure 1. The cleaning structure 2 includes an adjustment driving component 201 for installing and adjusting the cleaning component 202. The adjustment driving component 201 includes mounting bearings 2011 symmetrically arranged on the surface of the magnetic flux leakage detection stage 1011. A fixed disk 2012 for installing and adjusting the components of the cleaning component 202 is fixedly provided on the surface of the mounting bearing 2011. A gear disk 2014 for driving adjustment is provided between the fixed disks 2012 through a driving rod 2013. The connection shapes of the mounting bearing 2011, the fixed disk 2012, the driving rod 2013, and the gear disk 2014 are in a drum shape. By using the connection shapes of the above structural components in a drum shape, not only the co-rotational connection effect of the forces of the above structure is reflected, but also the synchronous rotational movement and central symmetry connection effects during the force application process of the above structural components are reflected. And the gear disk 2014 is installed and arranged by using the internal gear disk 2014 in the prior art structure. When the internal gear disk 2014 in the prior art is used for installation and setting, it not only has a meshing driving effect with the driving gear 2016, but also has a driving rotation adjustment effect on the above structural components.

[0045] Furthermore, the driving component 201 includes a connecting shaft 2015 with a driving gear 2016 provided on its surface. The connecting shaft 2015 is adjusted and driven by a driving motor 2017. The driving motor 2017 is arranged by using a waterproof and oil-proof motor in the prior art structure. When the driving motor 2017 in the prior art is used for installation and setting, it can avoid the liquid inside the pipeline from entering the driving motor 2017 when the driving motor 2017 enters the pipeline, resulting in the rotation short circuit or open circuit of the components inside the driving motor 2017 and affecting the adjustment operation of the overall equipment.

[0046] Further, in the above solution, the cleaning component 202 includes a plurality of mounting cylinders 2021 arranged on the surface of the fixed disk 2012. A connecting spring 2022 for vertical movement adjustment is provided inside the mounting cylinder 2021. A hydraulic telescopic rod 2024 that is vertically adjusted inside the mounting cylinder 2021 is provided on the connecting spring 2022 through a connecting plate 2023. A fixing plate 2025 with a through groove is provided on the hydraulic telescopic rod 2024. Soft brushes 2026 for cleaning the components of the magnetic leakage detection structure 1 are provided on the fixing plate 2025 through the through groove and at the bottom. The overall shape of the fixing plate 2025 is an equilateral trapezoid, and the fixing plate 2025 is made of wear-resistant high molecular polyethylene material. The fixing plate 2025 is in the shape of an equilateral trapezoid, so that the inclined surfaces on both sides of the equilateral trapezoid are used to facilitate the detection component 102 to enter the pipeline. When the detection component 102 enters the pipeline, it is not easy to be blocked from entering the pipeline due to the influence of the components of the detection component 102. In turn, the fixing plate 2025 is made of wear-resistant high molecular polyethylene material. When the fixing plate 2025 is made of wear-resistant high molecular polyethylene material, it not only effectively extends the service life of the fixing plate 2025, but also avoids the situation that the fixing plate 2025 and the inner wall of the pipeline are subjected to force friction, resulting in friction scratches on the surface of the fixing plate 2025 and friction debris falling into the pipeline.

[0047] In the above solution, when the detection component 102 needs to enter the interior of the pipeline, the operator can control the stage 1014 to make the hydraulic telescopic rod 2024 work. During the operation of the hydraulic telescopic rod 2024, the fixed plate 2025 is driven to move. When the fixed plate 2025 moves under force, the soft brush 2026 is driven to move in the same direction. When the fixed plate 2025 exceeds the distance height of the sensor module 1027, the operation of the hydraulic telescopic rod 2024 is stopped. When the operator pushes the body component 101 into the interior of the pipeline, when the fixed plate 2025 contacts the inner wall of the pipeline, at this time, the fixed plate 2025 is stressed and squeezes the hydraulic telescopic rod 2024. When the hydraulic telescopic rod 2024 is stressed and squeezed, it drives the connecting plate 2023 to move. During the movement of the connecting plate 2023, the connecting spring 2022 and the mounting cylinder 2021 move relative to each other under force. When the whole device completely enters the interior of the pipeline, at this time, the operator controls the hydraulic telescopic rod 2024 to work in the reverse direction to avoid affecting the normal detection work of the sensor module 1027. And during the movement of the soft brush 2026, it can clean the components of the detection component 102. When the whole detection component 102 needs to be cleaned, the operator uses the moving structure 3 to support the whole magnetic flux leakage detection structure 1. At this time, the driving motor 2017 is controlled to work. During the operation of the driving motor 2017, the driving gear 2016 is driven to rotate by the connecting shaft 2015. During the rotation of the driving gear 2016, the gear disc 2014 is driven to move actively. During the rotation of the gear disc 2014, the driving rod 2013 is driven to rotate. During the rotation of the driving rod 2013, the soft brush 2026 is driven by the fixed disc 2012 to rotate relative to the mounting bearing 2011 and the detection component 102 under force, so as to rotate and clean the components of the detection component 102.

[0048] As Figure 10 shown, the cleaning structure 2 is provided with a moving structure 3 for carrying and moving the auxiliary magnetic flux leakage detection structure 1 at the bottom of the magnetic flux leakage detection structure 1. The moving structure 3 includes a stress plate 301 with an arc shape. The stress plate 301 is arranged in an arc shape, so as to effectively install and connect with the anti-collision head 1012, the control stage 1014 and the bottom of the power supply stage 1013. In this way, it not only plays a role in quick and stable installation and connection, but also expands the stress support area, so that the body component 101 can maintain stability and balance during the movement of carrying force. Inside the stress plate 301, there is a buffer pad 302 to prevent the components of the magnetic flux leakage detection structure 1 from moving and sliding. The buffer pad 302 is symmetrically provided with a plurality of shock absorbers 303 at the bottom of the stress plate 301. At the bottom of the shock absorbers 303, there are movable wheels 304 for conveniently moving and carrying the magnetic flux leakage detection structure 1. Four shock absorbers 303 and movable wheels 304 are arranged at the bottom of each stress plate 301 to maintain the above effects and situations. At the same time, the shock absorbers 303 are arranged as damping shock absorbers in the existing technical structure, so as to effectively play the role of shock absorption and buffering during movement.

[0049] In the above solution, the operator uses the buffer pad 302 to connect the force-bearing plate 301 to the bottom of the anti-collision head 1012, the control stage 1014, and the power stage 1013 respectively. When the force-bearing plate 301 is connected, the shock absorber 303 exerts a force on the movable wheel 304 and compresses it. At this time, when the operator pushes the magnetic flux leakage detection structure 1 to move, the movable wheel 304 is driven to move, and the overall device is driven to move and carry during the movement of the movable wheel 304 under force.

[0050] The orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only a simplified description for facilitating the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the protected content of the present invention.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnetic flux leakage detection device for portable pressure-bearing equipment with a self-cleaning structure, characterized in that: it includes a magnetic flux leakage detection structure (1) as the body, and a cleaning structure (2) for automatically cleaning the surfaces of the components of the magnetic flux leakage detection structure (1) is provided on the magnetic flux leakage detection structure (1). The cleaning structure (2) is provided with a moving structure (3) at the bottom of the magnetic flux leakage detection structure (1) to assist in carrying and moving the magnetic flux leakage detection structure (1); the magnetic flux leakage detection structure (1) includes a body component (101) as the basis. A detection component (102) for detecting different pressure-bearing equipment is movably provided on the body component (101). The body component (101) includes a magnetic flux leakage detection stage (1011) for receiving and detecting magnetic flux leakage signals. An anti-collision head (1012) for preventing the magnetic flux leakage detection stage (1011) from colliding is provided at one end of the magnetic flux leakage detection stage (1011). The anti-collision head (1012) is movably provided with a power supply stage (1013) through the magnetic flux leakage detection stage (1011) and a universal structure. The power supply stage (1013) is also movably provided with a control stage (1014) through a universal joint. The control stage (1014) is movably provided with a mileage wheel (1016) through a mounting post (1015) with a groove through hole. The mileage wheels (1016) are elastically connected through a connecting spring (1017); the cleaning structure (2) includes an adjustment drive component (201) for installing and adjusting a cleaning component (202). The adjustment drive component (201) includes mounting bearings (2011) symmetrically arranged on the surface of the magnetic flux leakage detection stage (1011). A fixed plate (2012) for installing and adjusting the components of the cleaning component (202) is fixedly provided on the surface of the mounting bearing (2011). A gear disk (2014) for driving adjustment is provided between the fixed plates (2012) through a driving rod (2013); the drive component (201) includes a connecting shaft (2015) with a drive gear (2016) on its surface. The connecting shaft (2015) is adjusted and driven by a drive motor (2017); the cleaning component (202) includes a plurality of mounting cylinders (2021) arranged on the surface of the fixed plate (2012). A connecting spring (2022) for vertical movement adjustment is provided inside the mounting cylinder (2021). The connecting spring (2022) is provided with a hydraulic telescopic rod (2024) for vertical adjustment inside the mounting cylinder (2021) through a connecting plate (2023). A fixed plate (2025) with a through groove is provided on the hydraulic telescopic rod (2024). Soft brushes (2026) for cleaning the components of the magnetic flux leakage detection structure (1) are provided through the through groove and at the bottom; 2. The magnetic flux leakage detection device for portable pressure-bearing equipment with a self-cleaning structure according to claim 1, characterized in that: The magnetic flux leakage detection structure (1) includes a detection component (102). The detection component (102) includes a mounting base (1021) connected with a groove through hole. The mounting base (1021) is movably arranged with a connecting rod (1023) having through holes at both ends through a connecting pin and a torsion spring (1022). The connecting rod (1023) is also movably arranged with a connecting seat (1024) having a fixed seat (1025) at the bottom through a connecting pin and a torsion spring (1022).

3. The magnetic flux leakage detection device for a portable pressure-bearing device with a self-cleaning structure according to claim 2, wherein: The detection component (102) includes a connecting seat (1024). The connecting seat (1024) is symmetrically provided with magnet blocks (1028) having through holes. A magnetic conduction gasket (1026) having a through hole is installed on the magnet block (1028). A sensor module (1027) having a through hole in sequence is arranged between the magnetic conduction gaskets (1026). The sensor module (1027) is installed and arranged with the connecting seat (1024) by fixing bolts.

4. The magnetic flux leakage detection device for a portable pressure-bearing device with a self-cleaning structure according to claim 1, wherein: The moving structure (3) includes a force-bearing plate (301) in an arc shape. A buffer pad (302) for preventing the components of the magnetic flux leakage detection structure (1) from moving and sliding is arranged inside the force-bearing plate (301). The buffer pad (302) is provided with a plurality of shock absorbers (303) symmetrically at the bottom of the force-bearing plate (301). An activity wheel (304) for conveniently moving and carrying the magnetic flux leakage detection structure (1) is arranged at the bottom of the shock absorber (303).

5. The magnetic flux leakage detection device for a portable pressure-bearing device with a self-cleaning structure according to claim 1, wherein: The connection of the mounting bearing (2011), the fixed disk (2012), the driving rod (2013) and the gear disk (2014) is in a drum shape.

6. The magnetic flux leakage detection device for a portable pressure-bearing device with a self-cleaning structure according to claim 1, wherein: The overall shape of the fixing plate (2025) is an equilateral trapezoid, and the fixing plate (2025) is made of wear-resistant high molecular polyethylene material.

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