A leakage detection device for mechanical and electrical equipment

Abstract

The invention relates to the technical field of electrical equipment detection, and discloses a leakage detection device for mechanical electrical equipment, comprising an electrical cabinet, a leakage protector installed in the electrical cabinet, and used for power-off protection in the event of leakage; a self-repairing part installed in the electrical cabinet, and used for locating the connection ends of the neutral line and the live line on the leakage protector, and performing line aging repair; when the line aging and leakage cause the leakage protector to trip, the device can automatically detect the resistance value of the neutral line and the live line, and drive the adjustment frame to move through an electric push rod to make the guide column contact the neutral line and the live line, and form a measurement loop using components such as a measurement module, so as to detect the resistance value and display it on a control panel screen; this process does not require manual detection, and the problem line can be judged at the first time, thereby improving the detection efficiency, while also avoiding the risk of electric shock that may be faced during manual detection, and providing an accurate basis for subsequent maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment detection, in particular to a mechanical electrical equipment leakage detection device. Background Art

[0002] With the widespread use of electrical equipment, safety accidents caused by leakage occur frequently. The detection of leakage mainly relies on the leakage protector to perform rapid leakage protection, and then use leakage detection machines such as multimeters to detect lines and electrical appliances.

[0003] According to the Chinese patent publication number CN116125335B, the patent provides a mechanical electrical equipment detection device, including a box body, multiple groups of electrical components are equidistantly installed inside the box body, and connecting wires are installed at the output ends of the electrical components. The connecting wires are divided into neutral wires and live wires. A horizontal plate is provided at the top of the box body, and a measuring body is installed on the surface of the horizontal plate. A translation component for driving the measuring body to move horizontally is provided on the side of the horizontal plate. A pushing mechanism for driving the measuring body to approach the connecting wire is provided on both sides of the bottom of the box body. The measuring body is driven to move along the X, Y, and Z axes under the action of the electric push rod, the pushing mechanism, and the translation component, thereby driving the measuring end of the measuring body to approach electrical components at different positions, thereby replacing manual detection.

[0004] In traditional technology, when the lines of the electrical cabinet are aged and leaking, the leakage protector will trip to cut off the power supply, but the line fault still needs to wait for the maintenance personnel to arrive at the site for investigation and detection. In addition, the alarm issued by the detection device only serves as a reminder, and the purpose is also to speed up the maintenance personnel to arrive at the site to work. Therefore, when the line is aged and leaks, the electrical cabinet can only be shut down and wait for maintenance. It is difficult to restore power through self-inspection, causing the power supply of electrical equipment to be unable to be powered. Therefore, a mechanical electrical equipment leakage detection device is proposed to solve the above-mentioned problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a leakage detection device for mechanical electrical equipment, which solves the problem that the electrical cabinet can only be shut down for processing and waiting for maintenance, resulting in the inability to supply power to the electrical equipment.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a leakage detection device for mechanical electrical equipment, comprising an electrical cabinet, a leakage protector installed in the electrical cabinet, and used for power-off protection in the event of leakage, a self-repairing part installed in the electrical cabinet, and used for locating the connection ends of the neutral wire and the live wire on the leakage protector to repair line aging, an adjustment part installed on the self-repairing part, and used for automatically adjusting the distance between the self-test tool and the neutral wire and the live wire after triggering the power-off protection, a self-testing part installed on the adjustment part, and used for automatically judging the resistance value of the neutral wire and the live wire for self-test, and a recovery part installed on the self-testing part, and used for automatically resetting the switch of the leakage protector to re-power.

[0009] Preferably, the self-repair part includes two brackets, the two brackets are symmetrically arranged and installed at the bottom of the inner wall of the electrical cabinet, the ends of the two brackets are fixedly connected to two cross beams, the end of each cross beam is fixedly connected to a positioning ring, a heat shrink sleeve is bonded between every two adjacent positioning rings, a box cover is fixedly connected between every two adjacent cross beams, each box cover is open on one side facing the heat shrink sleeve, a heating tube is installed on the inner wall of the opening of each box cover, and a pipeline hole is provided on the side wall of each box cover, and the two heat shrink sleeves are movably mounted on the connecting ends of the neutral wire and the live wire of the leakage protector respectively.

[0010] Preferably, the adjustment part includes a mounting frame, which is installed on the top ends of the two brackets, and a battery is installed in the mounting frame. The two brackets are fixedly connected to a rod sleeve on one side away from each other, and an electric push rod is installed on the inner wall of each rod sleeve. The two electric push rods are electrically connected to the battery.

[0011] Preferably, the self-inspection part includes an adjustment frame, two sliding holes are provided on the adjustment frame, the adjustment frame is slidably connected to two box covers and four cross beams through the two sliding holes, push pieces are fixedly connected on both sides of the adjustment frame, the inner rod ends of the two electric push rods are respectively fixedly connected to the two push pieces, a chassis is installed at the bottom of the adjustment frame, two control panels are installed on the chassis, two measuring modules are installed inside the chassis, two guide columns are installed on the adjustment frame, two guide bars are installed at the bottom of the chassis, and each guide column is respectively electrically connected to the measuring module, the control panel and the guide bar on the same side.

[0012] Preferably, the self-test unit also includes two analog-to-digital conversion modules, both of which are installed inside the chassis, and the two analog-to-digital conversion modules are electrically connected to the microcontrollers of the two control panels respectively. Control switches are installed on both sides of the outer wall of the chassis, and each of the control switches is electrically connected to the analog-to-digital conversion modules on the same side. Each of the control switches passes through the pipeline hole on the same side through a power cord and is electrically connected to the heating tube on the same side.

[0013] Preferably, the recovery part includes a support plate, the support plate is fixedly connected to one side of the adjustment frame, a control arm is slidably passed through the support plate, the top of the control arm is an arc structure, and connecting plates are fixedly connected on both sides of the bottom end of the control arm, and a tension spring is elastically connected between each connecting plate and the bottom of the support plate.

[0014] Preferably, a sensor module is installed on the leakage protector and is electrically connected to the sensor module, guide holes are provided at the connection positions of the neutral wire and the live wire of the leakage protector, and the connection ends of the neutral wire and the live wire on the leakage protector pass through the corresponding guide holes respectively.

[0015] Preferably, the two guide columns are aligned with the two guide holes respectively, the control arm is aligned with the switch of the leakage protector, the sensor module is electrically connected to the battery, two wire holes are provided on the chassis, and the battery is electrically connected to the two control panels through the power cord passing through the wire holes.

[0016] Preferably, the leakage protector, the sensor module and the two guide holes together constitute a leakage protection mechanism, the self-repair part, the adjustment part, the self-inspection part and the recovery part together constitute an automatic maintenance mechanism, the number of the leakage protection mechanism and the automatic maintenance mechanism is two each, and the two leakage protection mechanisms and the automatic maintenance mechanisms are arranged and installed inside the electrical cabinet.

[0017] Preferably, a ground bar is installed at the bottom of the inner wall of the electrical cabinet, the bottoms of the four guide bars in the two automatic maintenance mechanisms are aligned with the top of the ground bar, and a cabinet door is installed at the cabinet opening of the electrical cabinet.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides a leakage detection device for mechanical and electrical equipment, which has the following beneficial effects:

[0020] 1. The leakage detection device for mechanical electrical equipment can automatically detect the resistance value of the neutral wire and the live wire when the leakage protector trips due to line aging and leakage. The electric push rod drives the adjustment frame to move so that the guide column contacts the neutral wire and the live wire. The measurement module and other components form a measurement loop to detect the resistance value and display it on the control panel screen. This process does not require manual detection and can determine the problem line at the first time, thereby improving the detection efficiency. At the same time, it also avoids the risk of electric shock that may be faced during manual detection, and provides an accurate basis for subsequent maintenance.

[0021] 2. The leakage detection device for mechanical electrical equipment adopts a method that when it detects that the resistance value is less than the safety threshold, the analog-to-digital conversion module will generate an electrical signal according to the change in resistance value to start the control switch, and then turn on the heating tube to heat the heat shrink tubing, causing it to shrink when heated to repair the surface of the installed neutral wire or live wire. After that, the electric push rod will shrink with a delay to reset the adjustment frame, the guide column will leave the guide hole to stop the resistance signal detection, and the control switch will turn off the heating tube. This automatic repair function can actively repair the faulty line when the maintenance personnel have not arrived at the site, reducing the pressure of manpower repair, improving equipment safety, and reducing additional safety risks caused by leakage.

[0022] 3. The leakage detection device for mechanical electrical equipment adopts a method in which when the adjustment frame approaches the leakage protector, the arc surface structure of the control arm will contact the leakage protector switch, causing it to be squeezed and lowered. When the adjustment frame is reset, the control arm will bounce upward through the tension of the tension spring and press against the switch to flip upward, reopening the leakage protector. This operation will be automatically performed each time the electric push rod is extended or retracted. After self-inspection and self-repair of the circuit, an attempt will be made to restore the circuit operation to avoid continuous power outages in the area due to leakage protection, thereby reducing the losses caused by power outages. If there is no tripping after reopening, the self-inspection and self-repair are successful, and electricity can be used normally and wait for the maintenance personnel to conduct a second inspection. If there is still a tripping, the above self-inspection and self-repair steps will be repeated for many times. If it still fails after more than three times, the self-inspection and self-repair will be stopped and wait for the maintenance personnel to conduct on-site inspection. Through continuous automatic inspection and maintenance, we can actively respond to leakage problems and strive to overcome the safety hazards and daily damage caused by leakage.

[0023] 4. The leakage detection device for mechanical electrical equipment adopts a leakage protector, a sensor module and a guide hole to form a leakage protection mechanism. The self-repair part, the adjustment part, the self-inspection part and the recovery part form an automatic maintenance mechanism, and there are two of each, which are arranged and installed in the electrical cabinet respectively, so that each leakage protector has corresponding self-inspection and self-repair capabilities. A ground bar is also installed in the electrical cabinet, which cooperates with the guide bar in the automatic maintenance mechanism to further improve the circuit connection. This design enhances the stability and reliability of the equipment. Compared with the traditional technology that can only detect the fault location and issue an alarm but cannot actively restore power, the device automatically inspects and maintains without supervision. When the repair is successful, it can greatly reduce the power outage loss, buy time for the maintenance personnel to arrive at the site, and reduce the troubles caused by regional power outages. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the internal structure of an electrical cabinet of a mechanical electrical equipment leakage detection device proposed by the present invention;

[0025] Figure 2 A connection diagram of a leakage protector and a self-repairing unit of a leakage detection device for mechanical and electrical equipment proposed by the present invention;

[0026] Figure 3This is a connection diagram of the self-repairing part and the regulating part of a mechanical and electrical equipment leakage detection device proposed by the present invention;

[0027] Figure 4 This is an axial view of the self-repairing part and the adjusting part of the leakage detection device for mechanical and electrical equipment proposed by the present invention;

[0028] Figure 5 This is a structural schematic diagram of a self-test unit of a mechanical and electrical equipment leakage detection device proposed by the present invention;

[0029] Figure 6 A connection diagram of a self-testing part and a recovery part of a leakage detection device for mechanical and electrical equipment proposed by the present invention;

[0030] Figure 7 A schematic diagram of the structure of a leakage protector for a leakage detection device for mechanical and electrical equipment proposed by the present invention;

[0031] Figure 8 This is a structural schematic diagram of an electrical cabinet of a mechanical electrical equipment leakage detection device proposed by the present invention.

[0032] In the figure: 1. electrical cabinet; 2. self-repair unit; 21. bracket; 22. crossbeam; 23. positioning ring; 24. heat shrink tubing; 25. box cover; 26. heating tube; 27. pipeline hole; 3. adjustment unit; 31. mounting frame; 32. battery; 33. rod sleeve; 34. electric push rod; 4. self-test unit; 41. adjustment frame; 42. sliding hole; 43. push piece; 44. chassis; 45. control panel; 46. measuring module; 47. guide column; 48. guide bar; 49. analog-to-digital conversion module; 410. control switch; 5. recovery unit; 51. support plate; 52. control arm; 53. connecting plate; 54. tension spring; 6. leakage protector; 7. sensor module; 8. guide hole; 9. ground bar; 10. cabinet door. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-8The present invention provides a technical solution: a leakage detection device for mechanical electrical equipment, including an electrical cabinet 1, whose model can refer to the BKL stainless steel junction box, which belongs to the prior art product and is used for installing electrical equipment and line distribution inside. The leakage protector 6 of this case is installed in the electrical cabinet 1, and is used for power-off protection in the event of leakage. The self-repair part 2 of this case is installed in the electrical cabinet 1, and is used to locate the connection ends of the neutral line and the live line on the leakage protector 6 to repair line aging. The adjustment part 3 of this case is installed on the self-repair part 2, and is used to automatically adjust the distance between the self-test tool and the neutral line and the live line after triggering the power-off protection. The self-test part 4 of this case is installed on the adjustment part 3, and is used to automatically determine the resistance value of the neutral line and the live line for self-test. The recovery part 5 of this case is installed on the self-test part 4, and is used to automatically reset the switch of the leakage protector 6 to re-power.

[0035] In the present invention, in order to provide the ability of automatic repair of line aging, the self-repair part 2 of this case includes two brackets 21, the two brackets 21 are symmetrically arranged and installed at the bottom of the inner wall of the electrical cabinet 1, the ends of the two brackets 21 are fixedly connected to two beams 22, and the ends of each beam 22 are fixedly connected to a positioning ring 23, and a heat shrink sleeve 24 is bonded between every two upper and lower adjacent positioning rings 23, and the bonding method is convenient for disassembly and replacement, and the heat shrink sleeve 24 is used to repair the aging line by utilizing the heat shrinkage property of the heat shrink sleeve 24, so as to try to restore the circuit to avoid leakage, and a box cover 25 is fixedly connected between every two upper and lower adjacent beams 22, and each box cover 25 is opened on one side facing the heat shrink sleeve 24, and a heating tube 26 is installed on the inner wall of the opening of each box cover 25, and the heating tube 26 can continuously heat the heat shrink sleeve 24, and each box cover 25 is provided with a pipeline hole 27 on the side wall, and the two heat shrink sleeves 24 are respectively movably sleeved on the connection ends of the neutral wire and the live wire of the leakage protector 6.

[0036] In order to enable the self-inspection tool of this case to work automatically when the power is off, the adjustment part 3 of this case includes a mounting frame 31, which is installed on the top of the two brackets 21. A battery 32 is installed in the mounting frame 31, and the battery 32 is used to provide power. The two brackets 21 are fixedly connected to the side away from each other with a rod sleeve 33, and an electric push rod 34 is installed on the inner wall of each rod sleeve 33. The two electric push rods 34 are electrically connected to the battery 32.

[0037] In order to automatically detect the leakage circuit without supervision, the self-test unit 4 of this case includes an adjustment frame 41, on which two sliding holes 42 are provided, and the adjustment frame 41 is slidably connected to the two box covers 25 and the four cross beams 22 through the two sliding holes 42. Push pieces 43 are fixedly connected to both sides of the adjustment frame 41, and the inner rod ends of the two electric push rods 34 are respectively fixedly connected to the two push pieces 43. A chassis 44 is installed at the bottom of the adjustment frame 41, and two control panels 45 are installed on the chassis 44. A cellular network module is arranged in the control panel 45. It communicates with the base station of the telecommunications operator, uses the mobile network to send data to the Internet, and finally uploads it to the cloud, which can promptly transmit the leakage information to the maintenance personnel. Two measuring modules 46 are installed inside the chassis 44. The module adopts the Wheatstone bridge principle module and is a circuit for accurately measuring resistance. When measuring resistance, the internal circuit will determine the size of the measured resistance according to the principle of bridge balance, and display the measurement result on the screen of the control panel 45. Two guide columns 47 are installed on the adjustment frame 41, and two guide bars 48 are installed at the bottom of the chassis 44. Each guide column 47 is electrically connected to the measuring module 46, the control panel 45, and the guide bar 48 on the same side. The guide column 47 is used to contact the corresponding neutral line or live line, and then the resistance of the neutral line or live line is detected through the measuring module 46 and the guide bar 48. The self-test unit 4 also includes two analog-to-digital conversion modules 49, which are ADCs combined with a microcontroller, which can convert analog signals into digital signals. The microcontroller can process and judge these digital signals, and output control signals to control external switches according to preset conditions. The two analog-to-digital conversion modules 49 are installed in the machine Inside the box 44, two analog-to-digital conversion modules 49 are electrically connected to the microcontrollers of the two control panels 45 respectively. Control switches 410 are installed on both sides of the outer wall of the chassis 44. Each control switch 410 is electrically connected to the analog-to-digital conversion module 49 on the same side. Each control switch 410 passes through the pipeline hole 27 on the same side through a power cord and is electrically connected to the heating tube 26 on the same side. In this case, the application of the analog-to-digital conversion module 49 is to determine the start and stop of the control switch 410 according to the change in resistance value, and synchronously start and stop the heating tube 26 to control the temperature of the heat shrinkable sleeve 24.

[0038] In this embodiment, in order to re-energize the circuit after self-inspection and self-repair of the aging circuit, the recovery part 5 includes a support plate 51, which is fixedly connected to one side of the adjustment frame 41. A control arm 52 is slidably passed through the support plate 51. The top of the control arm 52 is an arc structure. Both sides of the bottom end of the control arm 52 are fixedly connected with connecting plates 53, and a tension spring 54 is elastically connected between each connecting plate 53 and the bottom of the support plate 51.

[0039] It is worth noting that in order to further improve the use stability of the self-inspection tool in this case, a sensor module 7 is installed on the leakage protector 6 in this case and is electrically connected to the sensor module 7. The module samples the AHLC-LTA current sensor. Based on the Hall effect principle, it isolates and converts complex signals such as AC, DC, and pulse, so that the converted signals can be directly collected and received by an external acquisition device. Guide holes 8 are provided at the connection positions of the neutral wire and the live wire of the leakage protector 6. The connection ends of the neutral wire and the live wire on the leakage protector 6 pass through the corresponding guide holes 8 respectively. The two guide columns 47 are aligned with the two guide holes 8 respectively, and the control arm 52 is aligned with the switch of the leakage protector 6. The sensor module 7 is electrically connected to the battery 32. Two wire holes are provided on the chassis 44. The battery 32 is electrically connected to the two control panels 45 through the power cord passing through the wire holes.

[0040] It is worth noting that in order to enable each leakage protector 6 to have corresponding self-inspection and self-repair capabilities, the leakage protector 6, the sensor module 7 and the two guide holes 8 in this case together constitute a leakage protection mechanism, the self-repair part 2, the adjustment part 3, the self-inspection part 4 and the recovery part 5 together constitute an automatic repair mechanism, the number of leakage protection mechanisms and the number of automatic repair mechanisms are two each, the two leakage protection mechanisms and the automatic repair mechanisms are arranged and installed inside the electrical cabinet 1, a ground bar 9 is installed at the bottom of the inner wall of the electrical cabinet 1, the bottoms of the four guide bars 48 in the two automatic repair mechanisms are aligned with the top of the ground bar 9, and a cabinet door 10 is installed at the cabinet opening of the electrical cabinet 1.

[0041] Working principle: during the use of the electrical cabinet 1, when the line ages and causes leakage, the leakage protector 6 will cut off the power through the current difference. When the leakage protector 6 trips, the sensor module 7 will transmit the electrical signal to the battery 32 based on the Hall effect and make the battery 32 start to supply power. After the battery 32 is powered, the microcontroller executes a delayed extension and retraction of the electric push rod 34, that is, the electric push rod 34 extends and drags the adjustment frame 41, causing the adjustment frame 41 to slide along the crossbeam 22 and the box cover 25 to approach the leakage protector 6, and then the two guide pillars 47 are respectively inserted into the corresponding guide holes 8 to connect with the neutral line and the live line. When the adjustment frame 41 moves, it simultaneously drives the two guide bars 48 to move to the ground bar 9 for contact. At this time, the neutral wire and the live wire are respectively connected with the contacted guide column 47, the measuring module 46, the microcontroller, the guide bar 48, and the ground bar 9, so that the resistance values ​​corresponding to the neutral wire and the live wire can be measured, and the resistance values ​​are reflected on the screen of the control panel 45, thereby realizing automatic detection of aging lines, replacing manual detection under traditional technology, and being able to judge the problem line in the first time, thereby improving the detection efficiency. Subsequent maintenance personnel can directly carry out maintenance through the problem line without manual detection, thus avoiding some risks of electric shock.

[0042] After detecting the resistance corresponding to the neutral line and the live line through the self-test unit 4, when the resistance value is less than the safety threshold, the analog-to-digital conversion module 49 will generate an electrical signal and start the control switch 410, thereby turning on the corresponding heating tube 26. The heating tube 26 continues to heat the adjacent heat shrink tubing 24 through the opening of the box cover 25, so that the heat shrink tubing 24 shrinks when heated and performs surface repair on the neutral line or the live line. The electric push rod 34 resets the adjustment frame 41 by delayed contraction. At this time, the guide column 47 is away from the guide hole 8 and no resistance signal is generated. The corresponding heating tube 26 is turned off by the control switch 410, and the pressure of manual repair is reduced by automatically repairing the faulty line. The aging line can be automatically repaired before the maintenance personnel arrive at the site, thereby improving the safety of the equipment and avoiding additional safety risks due to leakage.

[0043] While the adjustment frame 41 is close to the leakage protector 6, the support plate 51 moves accordingly and allows the arc surface of the control arm 52 to contact the switch of the leakage protector 6, thereby causing the control arm 52 to be squeezed and lowered. During the resetting of the adjustment frame 41, the control arm 52 bounces upward due to the tension of the tension spring 54, and resists the switch of the leakage protector 6 to flip upward, thereby reopening the leakage protector 6. This method is automatically executed once each time the electric push rod 34 is extended and retracted, in order to try to restore the circuit operation after self-inspection and self-repair of the circuit, thereby avoiding the problem of the area being unable to continue to supply power due to leakage protection, and minimizing the loss caused by power outages.

[0044] If the leakage protector 6 does not trip again after being reopened, the self-inspection and self-repair is successful, and the normal power supply in the power supply area of ​​the electrical cabinet 1 is restored without affecting the power supply situation in the area. The maintenance personnel can arrive at the site for a secondary inspection and test, thus avoiding daily losses and safety risks caused by power outages.

[0045] If the leakage protector 6 still trips after being reopened, the self-inspection and self-repair has failed. The above steps are executed again through the cooperation of the sensor module 7, the measurement module 46, the analog-to-digital conversion module 49 and the microcontroller, and the heat shrink tubing 24 on the faulty line is reheated to make the line surface repair more thorough and tight, and restore power as much as possible. When the self-inspection and self-repair are executed more than three times, the microcontroller actively shuts off the power supply of the battery 32, and no self-inspection and self-repair work is performed subsequently. The electrical cabinet 1 is in a serious leakage fault state and cannot restore power supply by line repair, waiting for the maintenance personnel to arrive at the site for inspection and testing.

[0046] Compared with traditional technologies that automatically detect fault locations and issue alarm reminders, these technologies cannot actively restore power, and cannot repeatedly and automatically attempt power repairs. While waiting for maintenance personnel to arrive at the site, the system is always in a power-off protection state, causing regional power outage losses and troubles. This case focuses more on automatic maintenance without supervision. When the repair is successful, it can greatly reduce the losses caused by power outages, and also buy time for maintenance personnel who are far away to arrive at the site.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A leakage detection device for mechanical and electrical equipment, characterized in that: include: Electrical cabinet (1); A leakage protector (6), installed in the electrical cabinet (1), for power-off protection in the event of leakage; A self-repairing unit (2) is installed in the electrical cabinet (1) and is used to locate the connection ends of the neutral line and the live line on the leakage protector (6) to perform line aging repair; An adjustment unit (3) is mounted on the self-repair unit (2) and is used to automatically adjust the distance between the self-test tool and the neutral line and the live line after the power-off protection is triggered; A self-test unit (4) is installed on the adjustment unit (3) and is used to automatically determine the resistance values ​​of the neutral line and the live line for self-test; A recovery unit (5) is installed on the self-test unit (4) and is used to automatically reset the switch of the leakage protector (6) to re-supply power; The self-repairing part (2) comprises two brackets (21), the two brackets (21) are symmetrically arranged and mounted on the bottom of the inner wall of the electrical cabinet (1), and the ends of the two brackets (21) are fixedly connected to two crossbeams (22); The adjusting portion (3) comprises a mounting frame (31), the mounting frame (31) being mounted on the top ends of the two brackets (21), a storage battery (32) being mounted in the mounting frame (31), a rod sleeve (33) being fixedly connected to one side of the two brackets (21) away from each other, an electric push rod (34) being mounted on the inner wall of each rod sleeve (33), and the two electric push rods (34) being electrically connected to the storage battery (32); The self-testing part (4) comprises an adjusting frame (41), the adjusting frame (41) is provided with two sliding holes (42), the adjusting frame (41) is slidably connected to two box covers (25) and four cross beams (22) through the two sliding holes (42), push pieces (43) are fixedly connected to both sides of the adjusting frame (41), the inner rod ends of the two electric push rods (34) are respectively fixedly connected to the two push pieces (43), a chassis (44) is installed at the bottom of the adjusting frame (41), two control panels (45) are installed on the chassis (44), two measuring modules (46) are installed inside the chassis (44), two guide columns (47) are installed on the adjusting frame (41), and two guide bars (48) are installed at the bottom of the chassis (44), and each guide column (47) is respectively electrically connected to the measuring module (46), the control panel (45) and the guide bar (48) on the same side; The self-test unit (4) further comprises two analog-to-digital conversion modules (49), the two analog-to-digital conversion modules (49) are both mounted inside the chassis (44), the two analog-to-digital conversion modules (49) are respectively electrically connected to the microcontrollers of the two control panels (45), and control switches (410) are mounted on both sides of the outer wall of the chassis (44), and each control switch (410) is respectively electrically connected to the analog-to-digital conversion module (49) on the same side; The recovery part (5) comprises a support plate (51), the support plate (51) is fixedly connected to one side of the adjustment frame (41), a control arm (52) is slidably passed through the support plate (51), the top of the control arm (52) is a curved surface structure, both sides of the bottom end of the control arm (52) are fixedly connected to connecting plates (53), and each of the connecting plates (53) is elastically connected to the bottom of the support plate (51) with a tension spring (54); A sensor module (7) is installed on the leakage protector (6) and is electrically connected to the sensor module (7); guide holes (8) are provided at the connection positions of the neutral wire and the live wire of the leakage protector (6); the connection ends of the neutral wire and the live wire on the leakage protector (6) respectively pass through the inside of the corresponding guide holes (8).

2. A mechanical electrical equipment leakage detection device according to claim 1, characterized in that: A positioning ring (23) is fixedly connected to the end of each crossbeam (22), a heat shrink sleeve (24) is bonded between each two vertically adjacent positioning rings (23), a box cover (25) is fixedly connected between each two vertically adjacent crossbeams (22), a side of each box cover (25) facing the heat shrink sleeve (24) is open, a heating tube (26) is installed on the inner wall of the opening of each box cover (25), a pipeline hole (27) is provided on the side wall of each box cover (25), and the two heat shrink sleeves (24) are movably mounted on the connection ends of the neutral wire and the live wire of the leakage protector (6).

3. A mechanical electrical equipment leakage detection device according to claim 2, characterized in that: Each of the control switches (410) passes through the pipeline hole (27) on the same side through a power line and is electrically connected to the heating pipe (26) on the same side.

4. A mechanical electrical equipment leakage detection device according to claim 3, characterized in that: The two guide posts (47) are respectively aligned with the two guide holes (8), the control arm (52) is aligned with the switch of the leakage protector (6), the sensor module (7) is electrically connected to the battery (32), the chassis (44) is provided with two wire holes, and the battery (32) is electrically connected to the two control panels (45) via power lines passing through the wire holes.

5. A mechanical electrical equipment leakage detection device according to claim 4, characterized in that: The leakage protector (6), the sensor module (7) and the two guide holes (8) together form a leakage protection mechanism, the self-repair part (2), the adjustment part (3), the self-test part (4) and the recovery part (5) together form an automatic repair mechanism, the leakage protection mechanism and the automatic repair mechanism are each two in number, and the two leakage protection mechanisms and the two automatic repair mechanisms are arranged and installed inside the electrical cabinet (1).

6. A mechanical electrical equipment leakage detection device according to claim 5, characterized in that: A ground bar (9) is installed at the bottom of the inner wall of the electrical cabinet (1), the bottoms of the four guide bars (48) in the two automatic maintenance mechanisms are aligned with the top of the ground bar (9), and a cabinet door (10) is installed at the cabinet opening of the electrical cabinet (1).

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