Portable integrated magnetic defect detector
Through the built -in battery supply battery and automatic magnetization mode in the magnetic powder probe, the traditional magnetic powder probe detector is limited in the high -altitude or field environment, and the portable and efficient magnetic powder detection operation is achieved.
Patent Information
- Application Number
- CN202420933127.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-30
AI Technical Summary
Traditional magnetic particle flaw detectors are limited in high altitude or outdoor environments. Due to the need for external power supply and the manual magnetization operation takes a long time, it causes fatigue and soreness in the operator's hands, affecting work efficiency.
A portable all -in -one magnetic powder detector is designed, a built -in power supply battery, supports automatic magnetization mode, and automatically or manual magnetized switching is achieved through the magnetized knob and circuit structure to reduce the hand fatigue of the operator.
In the case of relying on external power, it provides long -term continuous work ability, and reduces the hand fatigue of the operator through automatic magnetization mode, and improves the efficiency and operation comfort.
Smart Images
Figure CN222420089U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of magnetic particle flaw detectors, and in particular to a portable integrated magnetic particle flaw detector. Background Art
[0002] Magnetic particle detector is a non-destructive testing device commonly used to detect surface and sub-surface defects of metal parts. Its principle is based on electromagnetic induction and the characteristics of magnetic powder. When the magnetic field passes through the metal surface, it will generate magnetic field disturbance at the defect, adsorbing magnetic powder near the defect, thereby visualizing the defect location and shape, allowing operators to quickly and accurately detect defects.
[0003] Traditional magnetic particle flaw detectors usually require an external power supply, which limits their application in high-altitude, outdoor and other scenarios. For example, in environments such as power towers and outdoor construction sites, external power supplies are not always convenient or available. Therefore, this design that relies on external power limits the flexibility and applicability of the equipment. In addition, existing magnetic particle flaw detectors usually use manual magnetization, that is, the operator needs to manually press a button to magnetize. During the long magnetization process, the operator's hands are prone to fatigue and soreness, which affects work efficiency and operating comfort, and is not operator-friendly. Utility Model Content
[0004] The utility model provides a portable integrated magnetic particle flaw detector, which solves the problem that the flaw detector in the related art adopts manual magnetization, and the operator's hands are easily fatigued and sore after long-term use, which affects the work efficiency.
[0005] The technical solution of the utility model is as follows:
[0006] A portable integrated magnetic particle flaw detector, comprising a shell, one or more groups of contact pin groups, each group of the contact pin groups comprising two magnetized contact pins, the magnetized contact pins being fixedly connected to the lower side of the shell, the shell being provided with a handle groove on one side facing the magnetized contact pins, a manual button being provided in the handle groove, the two magnetized contact pins being located on both sides of the handle groove, a battery compartment being provided at the upper end of the shell, a power supply battery being detachably embedded in the battery compartment, a battery cover being provided on the power supply battery, the battery cover covering the open end of the battery compartment, and the battery cover being detachably connected to the battery compartment;
[0007] A power switch and a magnetizing knob are provided on the side of the shell, and the power switch and the magnetizing knob are embedded in the shell. The power switch is fixedly connected to the shell, and the magnetizing knob is rotatably connected to the shell. The magnetizing knob is provided with a first switching structure for switching manual magnetization or automatic magnetization. A first circuit structure for cooperating with the first switching structure to control the automatic or manual magnetization of the magnetized contact pin is provided in the shell. The power switch is electrically connected to the positive pole of the power supply battery, and the circuit structure is electrically connected to the power switch. The manual button and the first switching structure are electrically connected to the first circuit structure. One of the magnetized contact pins in each group of the contact pins is electrically connected to the negative pole of the power switch, and the other magnetized contact pin is electrically connected to the first circuit structure and the manual button.
[0008] Furthermore, the first circuit structure includes a circuit contact pin and two magnetizing circuit contact blocks, the cross-section of the circuit contact pin is a circular ring structure or a semicircular ring structure around the magnetizing knob, the circuit contact pin is electrically connected to the power switch, an isolation block is abutted between the two magnetizing circuit contacts, the isolation block and the two magnetizing circuit contacts are arranged in a circle around the magnetizing knob, the two magnetizing circuit contacts are electrically connected to the magnetizing contact pin or the manual button, respectively, and the two magnetizing circuits and circuit contact pins are electrically connected to the first switching structure.
[0009] Further, the first switching structure includes a first switch contact and a first switch contact block, the first switch contact foot is sleeved on the outer surface of the magnetizing knob, the cross-section of the first switch contact foot is a circular ring structure or a semi-circular ring structure around the magnetizing knob, the first switch contact foot abuts against the circuit contact foot, the first switch contact block is located at one end of the magnetizing button embedded in the shell, the first switch contact block extends from the magnetizing knob to the magnetizing circuit contact block and abuts against the magnetizing circuit contact block, a first connecting strip is provided between the first switch contact foot and the first switch contact block, and the two ends of the first connecting strip are respectively fixedly connected to the first switch contact foot and the first switch contact block.
[0010] Furthermore, an opening is provided on one side of the handle groove facing the magnetized contact pin, and both sides of the opening are respectively inclined toward the center between the two magnetized contact pins, and a fluorescent lamp and a white light lamp are respectively provided on the inclined two sides, and the fluorescent lamp and the white light lamp are fixedly connected to the housing, and both the fluorescent lamp and the white light lamp face the center between the two magnetized contact pins;
[0011] A light knob is embedded in the side of the shell, and the light knob is rotatably connected to the shell. The light knob is provided with a second switching structure for switching different lights. A second circuit structure for switching lights in accordance with the second switching structure is provided inside the shell. The second circuit structure is electrically connected to the power switch, and the second switching structure, the fluorescent lamp, and the white light lamp are all electrically connected to the second circuit structure. The fluorescent lamp and the white light lamp are all electrically connected to the negative pole of the power supply battery.
[0012] Furthermore, the second circuit structure includes a circuit contact pin and three light circuit contact blocks. The cross-section of the circuit contact pin is a circular ring structure or a semicircular ring structure around the light knob. The circuit contact pin is electrically connected to the power switch. There are isolation blocks between the three light circuit contact blocks. All the isolation blocks and the light circuit contact blocks are arranged in a circle around the magnetization knob. One of the light circuit contact blocks is electrically connected to the fluorescent lamp or the white light lamp, and the other two light circuit contact blocks are electrically connected to the fluorescent lamp or the white light lamp, respectively. The circuit contact pin and the three light circuit contact blocks are all electrically connected to the second switching structure.
[0013] Furthermore, the second switching structure includes a second switch contact and a second switch contact block, the second switch contact pin is sleeved on the outer surface of the light knob, the cross-section of the second switch contact pin is a circular ring structure or a semi-circular ring structure around the light knob, the second switch contact pin abuts against the circuit contact pin, the second switch contact block is located at one end of the light button embedded in the shell, the second switch contact block extends from the light knob to the light circuit contact block and abuts against the light circuit contact block, a second connecting strip is provided between the second switch contact pin and the second switch contact block, and the two ends of the second connecting strip are respectively fixedly connected to the second switch contact pin and the second switch contact block.
[0014] The working principle and beneficial effects of the utility model are:
[0015] The utility model sets a power supply battery in the shell, and supplies power to the flaw detector through the power supply battery, so that it does not need to rely on an external power supply, and the power supply battery is detachably connected to the shell. After the power supply battery is exhausted, it can be quickly replaced with a new power supply battery to continue working. The utility model introduces a magnetization knob and a first circuit structure. The magnetization knob and the first circuit structure allow the operator to select automatic magnetization or manual magnetization mode through the magnetization knob. In scenarios that require long-term inspections, the operator can switch to automatic magnetization through the magnetization knob, which can effectively reduce the fatigue of the operator's hands. The utility model solves the problem that the flaw detector in the related art adopts manual magnetization, and the operator's hands are easily fatigued and sore after long-term use, which affects work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 It is an exploded view of part of the structure of the utility model;
[0019] Figure 3 It is a bottom view of the utility model;
[0020] Figure 4 for Figure 1 A magnified perspective view of point A in the middle.
[0021] Figure 5 It is a schematic diagram of the structure of the magnetized knob in the utility model;
[0022] Figure 6 It is a schematic diagram of the structure of the lighting knob in the utility model.
[0023] In the figure: 1. shell; 2. magnetized contact pin; 3. power switch; 4. magnetized knob; 5. light knob; 6. manual button; 7. fluorescent lamp; 8. white light lamp; 9. power supply battery; 10. circuit contact pin; 11. magnetized circuit contact block; 12. light circuit contact block; 13. isolation block; 14. handle groove; 40. first switch contact pin; 41. first switch contact block; 42. first connecting strip; 50. second switch contact pin; 51. second switch contact block; 52. second connecting strip; 90. battery compartment; 91. battery cover; 140. opening. DETAILED DESCRIPTION
[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] like Figure 1 to Figure 6 As shown, this embodiment proposes a portable integrated magnetic particle flaw detector, including a shell 1, two magnetized feelers 2, the magnetized feelers 2 are fixedly connected to the lower side of the shell 1, a handle slot 14 is provided on the side of the shell 1 facing the magnetized feeler 2, a manual button 6 is provided in the handle slot 14, and the two magnetized feelers 2 are located on both sides of the handle slot 14, a battery compartment 90 is provided at the upper end of the shell 1, a power supply battery 9 is detachably embedded in the battery compartment 90, a battery cover 91 is provided on the power supply battery 9, the battery cover 91 covers the opening 140 end of the battery compartment 90, and the battery cover 91 is detachably connected to the battery compartment 90. The power supply battery 9 can be used to power the flaw detector, so that it does not need to rely on an external power supply, increasing its applicable scenarios, and the power supply battery 9 is installed in the battery compartment 90 in a traditional embedded manner. The battery compartment 90 and the battery cover 91 are used to protect the power supply battery 9 so that the power supply battery 9 can provide power stably. The battery cover 91 is connected to the battery compartment 90 by being embedded from the side of the battery compartment 90. The battery compartment 90 should be provided with a groove corresponding to the battery cover 91 so that the battery compartment 90 and the battery cover 91 can be stably connected.
[0026] A power switch 3 and a magnetizing knob 4 are arranged on the side of the housing 1. The power switch 3 and the magnetizing knob 4 are both embedded in the housing 1. The power switch 3 is fixedly connected to the housing 1, and the magnetizing knob 4 is rotatably connected to the housing 1. The magnetizing knob 4 is arranged to switch between manual magnetization and automatic magnetization. A first circuit structure for cooperating with the first switching structure to control the automatic or manual magnetization of the magnetized contact pin 2 is arranged in the housing 1. The power switch 3 is electrically connected to the positive pole of the power supply battery 9, the circuit structure is electrically connected to the power switch 3, the manual button 6 and the first switching structure are electrically connected to the first circuit structure, one of the two magnetized contact pins 2 is electrically connected to the negative pole of the power switch 3, and the other magnetized contact pin 2 is electrically connected to the first circuit structure and the manual button 6. The power switch 3 is used to control the power supply of the entire flaw detector, and the other structures of the flaw detector are electrically connected to the positive pole of the power supply battery 9 through the power switch 3. The manual button 6 is used to control whether the current flows to the magnetized contact pin 2. The magnetizing knob 4 is used to switch the function of automatic magnetization or manual magnetization, which is realized by the first switching structure. The first loop structure is used to realize the function of switching the magnetizing knob 4 between automatic magnetization and manual magnetization.
[0027] In this embodiment, the first circuit structure includes a circuit contact pin 10 and two magnetizing circuit contacts 11. The cross section of the circuit contact pin 10 is a circular ring structure or a semicircular ring structure around the magnetizing knob 4. The circuit contact pin 10 is electrically connected to the power switch 3. An isolation block 13 is abutted between the two magnetizing circuit contacts 11. The isolation block 13 and the two magnetizing circuit contacts 11 are arranged in a circle around the magnetizing knob 4. The two magnetizing circuit contacts 11 are electrically connected to the magnetizing contact pin 2 or the manual button 6 respectively. The two magnetizing circuits and the circuit contact pin 10 are electrically connected to the switching structure. The circuit contact pin 10 guides the current from the power switch 3 to the first circuit structure. The magnetizing circuit contact 11 is used to guide the current to the manual button 6 or the magnetizing contact pin 2. The isolation block 13 is used to isolate the two magnetizing circuit contacts 11 to prevent the two magnetizing circuit contacts 11 from being connected. The isolation block 13 is also used to limit the movement of the magnetizing knob 4. A protrusion should be set on the side of the isolation block 13 facing the magnetizing knob 4. The protrusion can effectively prevent the magnetizing knob 4 from rotating in an unexpected situation, thereby causing the switching of the manual and automatic modes. When the operator switches the mode, the magnetizing knob 4 is deformed from the isolation block 13 to another magnetizing circuit contact 11. The isolation block 13 should be made of an insulating material with excellent elasticity, such as silicone rubber, fluororubber, etc. The cross-section of the circuit contact pin 10 is a circular ring structure or a semicircular ring structure around the magnetizing knob 4, which can increase the contact area between the circuit contact pin 10 and the first switch contact pin 40, and reduce the possibility of the circuit contact pin 10 and the first switch contact pin 40 being disconnected. The isolation block 13 and the two magnetizing circuit contacts 11 are arranged in a circle around the magnetizing knob 4 , which is more in line with the rotation mode of the magnetizing knob 4 , so that the first switch contact 41 can be in closer contact with the magnetizing circuit contact 11 .
[0028] In this embodiment, the first switching structure includes a first switch contact 40 and a first switch contact block 41. The first switch contact 40 is sleeved on the outer surface of the magnetizing knob 4. The cross section of the first switch contact 40 is a circular ring structure or a semicircular ring structure around the magnetizing knob 4. The first switch contact 40 abuts against the circuit contact 10. The first switch contact block 41 is located at one end of the magnetizing button embedded in the housing 1. The first switch contact block 41 extends from the magnetizing knob 4 to the magnetizing circuit contact block 11 and abuts against the magnetizing circuit contact block 11. A first connecting strip 42 is arranged between the first switch contact 40 and the first switch contact block 41. The two ends of the first connecting strip 42 are respectively fixedly connected to the first switch contact 40 and the first switch contact block 41. The first switch contact 40 is used to guide the current from the circuit contact 10 to the magnetizing knob 4, the connecting strip is used to guide the current from the first switch contact 40 to the first switch contact block 41, and the first switch contact block 41 is used to guide the current from the connecting strip to the magnetizing circuit contact block 11. The cross section of the first switch contact pin 40 is in a circular ring structure or a semicircular ring structure around the magnetizing knob 4, which can increase the contact area between the first switch contact pin 40 and the circuit contact pin 10, making the connection tighter without circuit breakage.
[0029] The approximate path of the automatic magnetization current flow is: the current flows out from the positive pole of the power supply battery 9 and passes through the power switch 3, the loop contact 10, the first switch contact 40, the connecting strip, the first switch contact block 41, the magnetization loop contact block 11, the magnetization contact pin 2 electrically connected to the magnetization loop contact block 11, the object to be detected, the magnetization contact pin 2 electrically connected to the negative pole of the power supply battery 9, and the negative pole of the power supply battery 9.
[0030] The approximate path of the manual magnetization current flow is as follows: the current flows out from the positive pole of the power supply battery 9 and passes through the power switch 3, the loop contact pin 10, the first switch contact pin 40, the connecting strip, the first switch contact block 41, the magnetization loop contact block 11, the manual button 6, the magnetized contact pin 2 electrically connected to the manual button 6, the object to be detected, the magnetized contact pin 2 electrically connected to the negative pole of the power supply battery 9, and the negative pole of the power supply battery 9.
[0031] In this embodiment, an opening 140 is provided on one side of the handle groove 14 facing the magnetized contact pin 2, and both sides of the opening 140 are respectively inclined toward the center between the two magnetized contact pins 2, and a fluorescent lamp 7 and a white light lamp 8 are respectively provided on the two inclined sides, and the fluorescent lamp 7 and the white light lamp 8 are fixedly connected to the housing 1, and both the fluorescent lamp 7 and the white light lamp 8 face the center between the two magnetized contact pins 2. The fluorescent lamp 7 is used to detect subtle defects such as tiny cracks, fatigue cracks, stress corrosion cracks, etc. on the surface. The fluorescent lamp 7 irradiates ultraviolet light (UV light) of a specific wavelength to the area covered with fluorescent powder on the surface of the object to be inspected, and these fluorescent powders will emit fluorescence under the action of UV light, thereby making the defective area more obvious. The white light lamp 8 is used to detect larger and more obvious defects, such as cracks, pores, inclusions, etc. The white light lamp 8 generates visible light, making the defects and unevenness of the surface easier to be observed by the naked eye. The white light lamp 8 is usually used to compare the results of fluorescence detection, confirm and locate the position of defects, or detect defects without the use of fluorescent powder.
[0032] A light knob 5 is embedded in the side of the housing 1, and the light knob 5 is rotatably connected to the housing 1. The light knob 5 is provided with a second switching structure for switching different lights. A second circuit structure for switching lights in accordance with the second switching structure is provided inside the housing 1. The second circuit structure is electrically connected to the power switch 3. The second switching structure, the fluorescent lamp 7, and the white light lamp 8 are all electrically connected to the second circuit structure. The fluorescent lamp 7 and the white light lamp 8 are all electrically connected to the negative pole of the power supply battery 9. The light knob 5 is used to turn on the fluorescent lamp 7 or the white light lamp 8, or turn on both the fluorescent lamp 7 and the white light lamp 8 at the same time.
[0033] In this embodiment, the second circuit structure includes a circuit contact pin 10 and three lighting circuit contact blocks 12. The cross section of the circuit contact pin 10 is a circular ring structure or a semicircular ring structure around the lighting knob 5. The circuit contact pin 10 is electrically connected to the power switch 3. The three lighting circuit contact blocks 12 are all abutted with an isolation block 13. All isolation blocks 13 and lighting circuit contact blocks 12 are arranged in a circle around the magnetization knob 4. One of the three lighting circuit contact blocks 12 is electrically connected to the fluorescent lamp 7 and the white light lamp 8. The other two lighting circuit contact blocks 12 are electrically connected to the fluorescent lamp 7 or the white light lamp 8 respectively. The three lighting circuit contact blocks 12 and the circuit contact pin 10 are all electrically connected to the second switching structure. The circuit contact pin 10 of the second circuit structure is used to guide the current from the power switch 3 to the second circuit structure. The lighting circuit contact block 12 is used to guide the current to the fluorescent lamp 7 or the white light lamp or to the fluorescent lamp 7 and the white light lamp 8 at the same time. The isolation block 13 of the second loop structure has the same structure as the isolation block 13 of the first loop structure. The isolation block 13 of the second loop structure is used to separate the lighting loop contact blocks 12 . There should be two isolation blocks 13 , which are respectively located between adjacent lighting loop contact blocks 12 .
[0034] In this embodiment, the second switching structure includes a second switch contact 50 and a second switch contact block 51. The second switch contact 50 is sleeved on the outer surface of the light knob 5. The cross-section of the second switch contact 50 is a circular ring structure or a semi-circular ring structure around the light knob 5. The second switch contact 50 abuts against the circuit contact 10. The second switch contact block 51 is located at one end of the light button embedded in the shell 1. The second switch contact block 51 extends from the light knob 5 to the light circuit contact block 12 and abuts against the light circuit contact block 12. A second connecting strip 52 is arranged between the second switch contact 50 and the second switch contact block 51. The two ends of the second connecting strip 52 are respectively fixedly connected to the second switch contact 50 and the second switch contact block 51. The second switch contact 50 is used to guide the current from the loop contact 10 of the human loop structure to the light knob 5, the second connecting strip 52 is used to guide the current from the second switch contact 50 to the second switch contact block 51, and the second switch contact block 51 is used to guide the current from the second connecting strip 52 to the fluorescent lamp 7 or the white light lamp 7 or to both the fluorescent lamp 7 and the white light lamp 8.
[0035] The approximate path of current flow of fluorescent lamp 7 and white light lamp 8 is as follows: the current flows out from the positive pole of the power supply battery 9 and passes through the power switch 3, the loop contact pin 10, the second switch contact pin 50, the connecting strip, the second switch contact block 51, the light loop contact block 12, the fluorescent lamp 7 or the white light lamp 8 or the fluorescent lamp 7 and the white light lamp 8, and the negative pole of the power supply battery 9 in sequence.
[0036] The working process of this embodiment is as follows: the operator starts the power supply through the power switch 3, and then selects the manual or automatic magnetization mode by rotating the magnetization knob 4. If the magnetization knob 4 is rotated to the position of the magnetization circuit contact block 11 electrically connected to the manual button 6, the operator manually presses the manual button 6 after the magnetization contact pin 2 of the magnetic particle flaw detector is abutted against the inspected object, and the magnetic particle flaw detector magnetizes the inspected object; if the magnetization knob 4 is rotated to the position of the magnetization circuit contact block 11 directly electrically connected to the magnetization contact pin 2, the operator automatically magnetizes the inspected object after the magnetization contact pin 2 of the magnetic particle flaw detector is abutted against the inspected object. After selecting the manual or automatic magnetization mode, the operator selects the required light by turning the light knob 5. If the light knob 5 is rotated to the position of the light circuit contact block 12 electrically connected to the fluorescent lamp 7, the fluorescent lamp 7 is turned on; if the light knob 5 is rotated to the position of the light circuit contact block 12 electrically connected to the white light lamp 8, the white light lamp 8 is turned on; if the light knob 5 is rotated to the position of the light circuit contact block 12 electrically connected to both the fluorescent lamp 7 and the white light lamp 8, the fluorescent lamp 7 and the white light lamp 8 are turned on at the same time.
[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A portable integrated magnetic particle flaw detector, comprising a housing (1), one or more groups of contact pins, each group of the contact pins comprising two magnetized contact pins (2), the magnetized contact pins (2) being fixedly connected to the lower side of the housing (1), a handle groove (14) being provided on one side of the housing (1) facing the magnetized contact pins (2), a manual button (6) being provided in the handle groove (14), the two magnetized contact pins (2) being located on both sides of the handle groove (14), and characterized in that: The upper end of the housing (1) is provided with a battery compartment (90), a power supply battery (9) is detachably embedded in the battery compartment (90), a battery cover (91) is provided on the power supply battery (9), the battery cover (91) covers the opening (140) end of the battery compartment (90), and the battery cover (91) is detachably connected to the battery compartment (90); A power switch (3) and a magnetizing knob (4) are provided on the side of the housing (1); the power switch (3) and the magnetizing knob (4) are both embedded in the housing (1); the power switch (3) is fixedly connected to the housing (1); the magnetizing knob (4) is rotatably connected to the housing (1); the magnetizing knob (4) is provided with a first switching structure for switching between manual magnetization and automatic magnetization; a first circuit structure for cooperating with the first switching structure to control the automatic or manual magnetization of the magnetized contact pin (2) is provided in the housing (1); the power switch (3) is electrically connected to the positive pole of the power supply battery (9); the circuit structure is electrically connected to the power switch (3); the manual button (6) and the first switching structure are electrically connected to the first circuit structure; one of the magnetized contact pins (2) in each group of the contact pins is electrically connected to the negative pole of the power switch (3); and the other magnetized contact pin (2) is electrically connected to the first circuit structure and the manual button (6).
2. A portable integrated magnetic particle flaw detector according to claim 1, characterized in that: The first circuit structure comprises a circuit contact pin (10) and two magnetizing circuit contact blocks (11); the cross section of the circuit contact pin (10) is in a circular ring structure or a semicircular ring structure around the magnetizing knob (4); the circuit contact pin (10) is electrically connected to the power switch (3); an isolation block (13) is abutted between the two magnetizing circuit contact blocks (11); the isolation block (13) and the two magnetizing circuit contact blocks (11) are arranged in a circle around the magnetizing knob (4); the two magnetizing circuit contact blocks (11) are electrically connected to the magnetizing contact pin (2) or the manual button (6) respectively; and the two magnetizing circuits and the circuit contact pin (10) are both electrically connected to the first switching structure.
3. A portable integrated magnetic particle flaw detector according to claim 2, characterized in that: The first switching structure comprises a first switch contact foot (40) and a first switch contact block (41); the first switch contact foot (40) is sleeved on the outer surface of the magnetizing knob (4); the cross section of the first switch contact foot (40) is in a circular ring structure or a semicircular ring structure around the magnetizing knob (4); the first switch contact foot (40) abuts against the circuit contact foot (10); the first switch contact block (41) is located at one end of the magnetizing button embedded in the housing (1); the first switch contact block (41) extends from the magnetizing knob (4) to the magnetizing circuit contact block (11) and abuts against the magnetizing circuit contact block (11); a first connecting strip (42) is provided between the first switch contact foot (40) and the first switch contact block (41); the two ends of the first connecting strip (42) are respectively fixedly connected to the first switch contact foot (40) and the first switch contact block (41).
4. The portable integrated magnetic particle flaw detector according to claim 1, characterized in that: An opening (140) is provided on one side of the handle groove (14) facing the magnetized contact pin (2), and both sides of the opening (140) are respectively inclined toward the center between the two magnetized contact pins (2), and a fluorescent lamp (7) and a white light lamp (8) are respectively provided on the inclined two sides, and the fluorescent lamp (7) and the white light lamp (8) are fixedly connected to the housing (1), and both the fluorescent lamp (7) and the white light lamp (8) are facing the center between the two magnetized contact pins (2); A light knob (5) is embedded in the side of the shell (1), and the light knob (5) is rotatably connected to the shell (1). The light knob (5) is provided with a second switching structure for switching different lights. A second circuit structure for switching lights in accordance with the second switching structure is provided inside the shell (1). The second circuit structure is electrically connected to the power switch (3). The second switching structure, the fluorescent lamp (7), and the white light lamp (8) are all electrically connected to the second circuit structure. The fluorescent lamp (7) and the white light lamp (8) are all electrically connected to the negative pole of the power supply battery (9).
5. A portable integrated magnetic particle flaw detector according to claim 4, characterized in that: The second circuit structure comprises a circuit contact pin (10) and three light circuit contact blocks (12). The cross section of the circuit contact pin (10) is in a circular ring structure or a semicircular ring structure around the light knob (5). The circuit contact pin (10) is electrically connected to the power switch (3). An isolation block (13) is abutted between the three light circuit contact blocks (12). All the isolation blocks (13) and the light circuit contact blocks (12) are arranged in a circle around the magnetized knob (4). One of the light circuit contact blocks (12) is electrically connected to the fluorescent lamp (7) or the white light lamp (8), and the other two light circuit contact blocks (12) are electrically connected to the fluorescent lamp (7) or the white light lamp (8), respectively. The circuit contact pin (10) and the three light circuit contact blocks (12) are all electrically connected to the second switching structure.
6. A portable integrated magnetic particle flaw detector according to claim 5, characterized in that: The second switching structure comprises a second switch contact (50) and a second switch contact block (51); the second switch contact (50) is sleeved on the outer surface of the light knob (5); the cross section of the second switch contact (50) is in a circular ring structure or a semicircular ring structure around the light knob (5); the second switch contact (50) abuts against the circuit contact (10); the second switch contact block (51) is located at one end of the light button embedded in the housing (1); the second switch contact block (51) extends from the light knob (5) to the light circuit contact block (12) and abuts against the light circuit contact block (12); a second connecting strip (52) is provided between the second switch contact (50) and the second switch contact block (51); the two ends of the second connecting strip (52) are respectively fixedly connected to the second switch contact (50) and the second switch contact block (51).