Electrical equipment safety detection device

Abstract

The present invention belongs to the technical field of electrical equipment detection, and specifically is an electrical equipment safety detection device, comprising a supporting unit, a fixing unit and a testing unit; the supporting unit comprises an outer frame, a bracket and a connecting shaft; the bracket is arranged in the outer frame, and the bracket and the outer frame are slidably matched; the connecting shaft is fixed to the outer frame, and the bracket slides on the connecting shaft; the fixing unit is fixed to the top of the bracket; when fault detection is performed on the tap lead, the tap lead is combed out and directly placed in the fixing unit from top to bottom. When the tap lead falls into the center hole of the fixing unit, the clamping assembly can be used to fix the tap lead in the center. In this way, two points on the tap lead can be fixed. After the tap lead is fixed, the two fixing units are driven away from each other by the bracket, so that the tap lead that has been fixed on the inner side of the fixing unit can be straightened, thereby facilitating the probe to pierce the insulation layer of the tap lead and perform detection.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical equipment detection, in particular to an electrical equipment safety detection device. Background Art

[0002] Currently, there are two main types of detection technologies for transformer tap lead faults:

[0003] Offline factory inspection: Faulty transformers are returned to the factory for disassembly and then visual inspection or winding resistance testing is performed to locate defects. This method requires interrupting equipment operation for up to 20-30 days and involves transportation costs and disassembly risks (such as seal failure), resulting in significant electricity bill losses for power supply companies.

[0004] On-site probe detection: This method uses a multimeter combined with a puncture probe. For example, the distribution transformer fault detection device disclosed in publication number CN115856485A directly measures the resistance of the conductive loop by piercing the insulation layer of the tap lead wire. While this technology can achieve preliminary fault location, it has the following technical bottlenecks:

[0005] The tap lead to be tested is passed between the two slides, and the two slides are moved closer to each other through control means until the tap lead is clamped between the four fiber wheels. Then, a probe is used to pierce the insulation layer of the tap lead. During this process, since the tap lead is a conductive component inside the transformer used to connect the tap changer and the winding tap, its core function is to achieve voltage regulation by changing the winding turns ratio. It is a key structure to ensure the voltage stability of the power system. Therefore, it is difficult to send the tap lead between the two closed slides.

[0006] To this end, the present invention provides an electrical equipment safety detection device. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0008] The technical solution adopted by the present invention to solve the technical problem is: an electrical equipment safety detection device according to the present invention comprises:

[0009] A support unit, comprising an outer frame, a bracket and a connecting shaft; the bracket is disposed within the outer frame and is slidably engaged with the outer frame; the connecting shaft is fixedly connected to the outer frame, and the bracket slides on the connecting shaft;

[0010] A fixing unit is fixed to the top of the bracket; the fixing unit includes a first outer cover, a second outer cover and a clamping assembly, the clamping assembly is movably connected in the first outer cover and the second outer cover, one end of the first outer cover abuts against the second outer cover, and the other end is spaced apart;

[0011] The clamping assembly is used to clamp the tap lead after the tap lead passes through the first outer cover and the other end of the second outer cover with a gap;

[0012] The testing unit is located between the two fixing units and includes a probe. The probe is slidably connected to the side wall of the fixing unit, and the needle head of the probe faces the tapping lead.

[0013] Preferably, the clamping assembly comprises a driving disc, a clamping disc and a clamping block; the driving disc and the clamping disc are arranged concentrically, and the clamping block is slidably connected to the driving disc and the clamping disc;

[0014] The driving disk includes a driving disk A and a driving disk B, and the driving disk A and the driving disk B are hinged at one end and abutted at the other end; the driving disk is provided with three arc-shaped grooves, and the three arc-shaped grooves are arranged in a circumferential array;

[0015] The clamping disc includes a clamping disc A and a clamping disc B, and one end of the clamping disc A and the clamping disc B is hinged and the other end is abutted; the clamping disc is provided with three straight grooves, and the three straight grooves are arranged in a circumferential array;

[0016] The side wall of the clamping block is fixedly connected to a pin shaft, and the pin shaft passes through the straight groove and the arc groove in sequence.

[0017] Preferably, a first connecting groove is formed on the surface of the first outer cover, and a second connecting groove is formed on the surface of the second outer cover;

[0018] The surfaces of the driving disc A and the driving disc B are respectively slidably connected to the first connecting groove and the second connecting groove via the pin shaft.

[0019] Preferably, a first lever is provided on the driving disk B at one end adjacent to the hinged position of the driving disk A and the driving disk B, extending outward, and the first lever passes through the second outer cover; a second lever is provided on the clamping disk B at one end adjacent to the hinged position of the clamping disk A and the clamping disk B, correspondingly extending outward, and the second lever passes through the second outer cover.

[0020] Preferably, a plurality of teeth are fixedly connected to the bottom of the driving disc A adjacent to the hinged position of the driving disc A and the driving disc B; a gear is rotatably connected to the bottom of the second outer cover, and the gear is engaged with the teeth.

[0021] Preferably, the first outer cover and the second outer cover are provided with a back groove; the test unit further comprises a slide, and the slide is slidably connected in the back groove; the distance between the two ends of the slide is greater than the distance between the other ends of the first outer cover and the second outer cover.

[0022] Preferably, an L-shaped plate is fixedly connected to the slide, and the probe passes through the L-shaped plate. A spring is sleeved on the probe, and the probe is connected to the L-shaped plate via the spring.

[0023] Preferably, an insertion rod is fixed on the L-shaped plate perpendicular to the probe, and two insertion rods are provided and symmetrically distributed on both sides of the probe.

[0024] Preferably, connecting rods are fixed on the surfaces of the first outer cover and the second outer cover, and the first outer cover and the second outer cover are fixed on the bracket via the connecting rods passing through the bracket.

[0025] Preferably, the bracket is configured as an L-shaped structure, and a slider is fixedly connected to the side wall of the bracket parallel to the connecting shaft, and a sliding groove is provided on the side wall of the outer frame; the slider is slidably connected to the sliding groove.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. The electrical equipment safety detection device described in the present invention, when performing fault detection on the tap lead, combs out the tap lead and directly places it into the fixing unit from top to bottom. After the tap lead falls into the center hole of the fixing unit, the clamping assembly can be used to fix the tap lead in the center. In this way, two points on the tap lead can be fixed. After the tap lead is fixed, the two fixing units are driven away from each other by the bracket, and the fixed tap lead inside the fixing unit can be straightened, thereby facilitating the probe to pierce the insulation layer of the tap lead and perform detection.

[0028] 2. The electrical equipment safety detection device described in the present invention drives the gear to rotate through an external servo motor, and the gear transmission teeth can be reused to rotate the drive disk A, and through the hinged relationship with the drive disk B, drive disk B is driven to rotate synchronously, thereby making the drive disks A and B rotate synchronously. When the drive disk rotates, the pin shaft on one side of the clamping block can be squeezed with the help of the arc groove, and the clamping block and the pin shaft can be slidably connected in the straight groove, thereby achieving the effect of synchronous contraction and expansion. When the clamping block contracts synchronously, the tap lead can be clamped, which is suitable for tap leads of various sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] Figure 1 is a perspective view of the present invention;

[0031] Figure 2 is a three-dimensional diagram of the fixing unit of the present invention;

[0032] Figure 3 is a front view of the fixing unit of the present invention;

[0033] Figure 4 is a rear view of the fixing unit of the present invention;

[0034] Figure 5It is an exploded schematic diagram of the fixing unit in the present invention;

[0035] Figure 6 This is a diagram of the teeth and gears in the present invention;

[0036] Figure 7 It is a schematic structural diagram of the first outer cover and the second outer cover in the present invention;

[0037] In the figure: 100, outer frame; 110, first slide groove; 120, connecting shaft; 130, bracket; 131, slider; 200, tapping lead; 310, first outer cover; 311, first connecting groove; 320, second outer cover; 321, second connecting groove; 322, gear; 330, driving disk A; 331, driving disk B; 332, arc-shaped slide groove; 333, first shift rod; 334, teeth; 340, clamping disk A; 341, clamping disk B; 342, second shift rod; 343, straight groove; 350, slide; 351, spring; 352, probe; 353, L-shaped plate; 354, insertion rod; 360, connecting rod; 370, clamping block; 380, back groove. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0039] like Figures 1 to 7 As shown, an electrical equipment safety detection device according to an embodiment of the present invention includes a support unit, a fixing unit and a test unit; the support unit includes an outer frame 100, a bracket 130 and a connecting shaft 120; the bracket 130 is arranged in the outer frame 100, and the bracket 130 and the outer frame 100 are slidably matched; the connecting shaft 120 is fixed to the outer frame 100, and the bracket 130 slides on the connecting shaft 120; the fixing unit is fixed to the top of the bracket 130; the fixing unit includes a first outer cover 310, a second outer cover 320 and a clamping assembly The clamping assembly is movably connected within the first outer cover 310 and the second outer cover 320. One end of the first outer cover 310 and the second outer cover 320 abut against each other, and a gap is set at the other end. The clamping assembly is used to clamp the tap lead 200 after allowing the tap lead 200 to pass through the other end of the first outer cover 310 and the second outer cover 320 with the gap. The test unit is located between the two fixed units, and the test unit includes a probe 352. The probe 352 is slidably connected to the side wall of the fixed unit, and the needle tip of the probe 352 faces the tap lead 200.

[0040] Since the tap lead 200 is a conductive component inside the transformer used to connect the tap changer and the winding tap, its core function is to achieve voltage regulation by changing the winding turns ratio. It is a key structure to ensure the voltage stability of the power system. Therefore, it is difficult to feed the tap lead 200 between the two closed slides. In other words, when fault detection is performed on the tap lead 200, considering the installed state of the tap lead 200, it is not easy to insert the tap lead 200 into the two closed ring-shaped fixed structures. In one embodiment of the present invention, when fault detection is performed on the tap lead 200, the tap lead 200 is combed out and directly placed into the fixed unit from top to bottom. In the embodiment, after the tap lead 200 falls into the center hole of the fixing unit, the clamping assembly can be used to fix the tap lead 200 in the center, thereby fixing two points on the tap lead 200. Considering that the tap lead 200 is not straightened when it is fixed, it may be affected when the probe 352 subsequently pierces the insulating layer on the tap lead 200. In one embodiment of the present invention, after the tap lead 200 is fixed, the two fixing units are driven away from each other by the bracket 130, so that the tap lead 200 that has been fixed on the inner side of the fixing unit can be straightened, thereby facilitating the probe 352 to pierce the insulating layer of the tap lead 200 and perform detection.

[0041] like Figures 2 to 7 As shown, the clamping assembly includes a driving disc, a clamping disc and a clamping block 370; the driving disc and the clamping disc are arranged concentrically, and the clamping block 370 is slidably connected to the driving disc and the clamping disc;

[0042] The driving disk includes a driving disk A and a driving disk B, and the driving disk A and the driving disk B are hinged at one end and abutted at the other end; the driving disk is provided with three arc-shaped grooves, and the three arc-shaped grooves are arranged in a circumferential array;

[0043] The clamping disc includes a clamping disc A and a clamping disc B, and one end of the clamping disc A and the clamping disc B is hinged and the other end is abutted; three straight grooves 343 are formed on the clamping disc, and the three straight grooves 343 are arranged in a circumferential array;

[0044] The side wall of the clamping block 370 is fixedly connected to a pin, and the pin passes through the straight groove 343 and the arc groove in sequence.

[0045] As mentioned above, in a running transformer, the two ends of the tap lead 200 are connected to the tap changer and the winding tap, respectively. Therefore, it is difficult to feed the tap lead 200 into the two closed annular fixed structures. In one embodiment of the present invention, the clamping assembly is split into a driving disc, a clamping disc and a clamping block 370, and the driving disc and the clamping disc are respectively split into a driving disc A, a driving disc B, a clamping disc A and a clamping disc B. When the tap lead 200 is inspected, it is only necessary to comb out the tap lead 200 and pass it from top to bottom through the unfolded driving disc A, driving disc B, and the unfolded clamping disc A and clamping disc B, so that the tap lead 200 can be easily fed into the clamping block. The center of the tightening assembly is then combined with the driving disk A, the driving disk B and the clamping disk A, the clamping disk B, and the driving disk is controlled to rotate so that the clamping block 370 on the clamping disk can slide synchronously in the straight groove 343 and realize the expansion and contraction function. When fixing the tap lead 200, the three clamping blocks 370 are controlled to shrink synchronously to complete the fixation of the tap lead 200. After the detection is completed, the three clamping blocks 370 are controlled to expand synchronously to cancel the fixation of the tap lead 200. Based on the above, the clamping assembly can assist the tap lead 200 in testing without disassembly, thereby reducing the difficulty of testing the tap lead 200.

[0046] like Figures 3 to 5 As shown, a first connecting groove 311 is formed on the surface of the first outer cover 310 , and a second connecting groove 321 is formed on the surface of the second outer cover 320 ;

[0047] The surfaces of the driving disc A and the driving disc B are slidably connected to the first connecting groove 311 and the second connecting groove 321 via the pin shaft respectively.

[0048] In one embodiment of the present invention, the surfaces of the driving disks A and B are slidably connected in the first connecting groove 311 and the second connecting groove 321 via the pin shaft. When the driving disks rotate, the center of the driving disks can be controlled not to change, thereby ensuring the fixing effect of the branch lead 200.

[0049] like Figure 5 As shown, a first lever 333 is provided on the driving disk B at one end adjacent to the hinged position of the driving disk A and the driving disk B, extending outward, and the first lever 333 passes through the second outer cover 320; a second lever 342 is provided on the clamping disk B at one end adjacent to the hinged position of the clamping disk A and the clamping disk B, correspondingly extending outward, and the second lever 342 passes through the second outer cover 320.

[0050] When the tap lead 200 is fed into the two fixed units, in order to feed the tap lead 200 into the two fixed units from top to bottom, by pressing the first lever 333 and the second lever 342, the driving disk B and the clamping disk B can be driven to rotate around the hinge rod, and the driving disk B and the driving disk A can be separated, and the clamping disk B and the clamping disk A can be separated, thereby facilitating the tap lead 200 to be passed into the fixed units from top to bottom, wherein the hinge rods are the hinged parts of the driving disk B and the driving disk A, and the clamping disk B and the clamping disk A respectively.

[0051] like Figures 5 to 7 As shown, a plurality of teeth 334 are fixedly connected to the bottom of the driving disc A adjacent to the hinged position of the driving disc A and the driving disc B; a gear 322 is rotatably connected to the bottom of the second outer cover 320, and the gear 322 is engaged with the teeth 334.

[0052] After the tap lead 200 is fed into the two fixed units, the gear 322 is driven to rotate by an external servo motor, and the gear 322 can then be used to drive the teeth 334 to rotate the drive disk A, and through the hinged relationship with the drive disk B, drive disk B331 is driven to rotate synchronously, so that the drive disks A330 and B331 rotate synchronously. When the drive disks rotate, the pin on one side of the clamping block 370 can be squeezed with the help of the arc groove, and the clamping block 370 and the pin are slidably connected in the straight groove 343, thereby achieving the effect of synchronous contraction and expansion. When the clamping block 370 is synchronously contracted, the tap lead 200 can be clamped. This is suitable for tap leads 200 of various sizes. Similarly, it is also suitable for testing other types of installed cables.

[0053] like Figure 2 、 Figure 4 、 Figure 7 As shown, a back groove 380 is provided on the first outer cover 310 and the second outer cover 320; the test unit further includes a slide 350, which is slidably connected in the back groove 380; the distance between the two ends of the slide 350 is greater than the distance between the other ends of the first outer cover 310 and the second outer cover 320.

[0054] In order to detect the tap lead 200 after it is fixed, it is necessary to use the probe 352 of the multimeter to pierce the insulation layer of the tap lead 200. In one embodiment of the present invention, the probe 352 of the multimeter is set on the slide 350, and the back groove 380 on the first outer cover 310 and the second outer cover 320 is used to allow the slide 350 to slide outside the first outer cover 310 and the second outer cover 320. In conjunction with the fixing unit, fault detection at various positions on the tap lead 200 can be achieved. It is worth noting that since the tap lead 200 is fed into the fixing unit from top to bottom, a gap must be set between the other ends of the first outer cover 310 and the second outer cover 320 for the tap lead 200 to pass through. The lead 200 passes through. In one embodiment, in order to prevent the slide 350 carrying the multimeter probe 352 from separating from the first outer cover 310 and the second outer cover 320 during the sliding process, the distance between the two ends of the slide 350 is set to be larger, that is, larger than the distance between the other ends of the first outer cover 310 and the second outer cover 320, so that the slide 350 will not separate from the first outer cover 310 and the second outer cover 320 during the sliding process. It is worth noting that in one embodiment, the slide 350 slides within the first outer cover 310 and the second outer cover 320 and can be driven manually or mechanically. In this embodiment, a drive motor is set at the end of the slide 350, and the drive motor cooperates with the roller to drive the slide 350 to move in a circular motion.

[0055] like Figure 7 As shown, an L-shaped plate 353 is fixed to the slide 350 , and the probe 352 passes through the L-shaped plate 353 . A spring 351 is sleeved on the probe 352 , and the probe 352 is connected to the L-shaped plate 353 via the spring 351 .

[0056] The function of the spring 351 is to drive the probe 352 away from the insulation layer of the tap lead 200 when the tap lead 200 is fixed, so as to avoid premature puncture of the insulation layer, and the function of the L-shaped plate 353 is to carry the insulating tape and the probe 352 at the same time; it is worth noting that in one embodiment, the driving methods that can be adopted include manual and mechanical driving methods. In this embodiment, the probe 352 is driven by manual pressing.

[0057] like Figure 7 As shown, an insertion rod 354 is fixed to the L-shaped plate 353 perpendicular to the probe 352 , and two insertion rods 354 are provided and symmetrically distributed on both sides of the probe 352 .

[0058] As mentioned above, after the detection is completed, it is necessary to use insulating glue to fill the cavity after puncture. In this embodiment, the insulating glue can be filled by means of existing technology, which will not be repeated here. As for the winding of the insulating tape, in one embodiment, an L-shaped plate 353 for carrying the probe 352 is also provided with an insertion rod 354, and two are provided, symmetrically distributed. The insulating tape is put between the two insertion rods 354, and one end of the tape is manually attached to the tap lead 200. By driving the control slide 350 to rotate in the back groove 380, the puncture hole on the tap lead 200 can be closed.

[0059] like Figures 1 to 3 As shown, a connecting rod 360 is fixed on the surface of the first outer cover 310 and the second outer cover 320 , and the first outer cover 310 and the second outer cover 320 pass through the bracket 130 via the connecting rod 360 and are fixed on the bracket 130 .

[0060] like Figure 1 As shown, the bracket 130 is configured as an L-shaped structure, and a slider 131 is fixedly connected to the side wall of the bracket 130 parallel to the connecting shaft 120, and a slide groove 110 is opened on the side wall of the outer frame 100; the slider 131 is slidably connected to the slide groove 110.

[0061] Working principle: Since the tap lead 200 is a conductive component inside the transformer used to connect the tap changer and the winding tap, its core function is to achieve voltage regulation by changing the winding turns ratio. It is a key structure to ensure the voltage stability of the power system. Therefore, it is difficult to send the tap lead 200 between the two closed slides. That is to say, when performing fault detection on the tap lead 200, considering the installed state of the tap lead 200, it is not easy to insert the tap lead 200 into the two closed annular fixed structures. In one embodiment of the present invention, when performing fault detection on the tap lead 200, the tap lead 200 is combed out and directly placed from top to bottom into the fixed In the unit, after the tap lead 200 falls into the center hole of the fixing unit, the clamping assembly can be used to fix the tap lead 200 in the center, thereby fixing two points on the tap lead 200. Considering that the tap lead 200 is not straightened when it is fixed, it may be affected when the probe 352 subsequently pierces the insulating layer on the tap lead 200. In one embodiment of the present invention, after the tap lead 200 is fixed, the two fixing units are driven away from each other by the bracket 130, so that the tap lead 200 that has been fixed on the inside of the fixing unit can be straightened, thereby facilitating the probe 352 to pierce the insulating layer of the tap lead 200 and perform detection.

[0062] In a running transformer, the two ends of the tap lead 200 are connected to the tap changer and the winding tap, respectively. Therefore, it is difficult to feed the tap lead 200 into the two closed annular fixed structures. In one embodiment of the present invention, the clamping assembly is split into a driving disc, a clamping disc and a clamping block 370, and the driving disc and the clamping disc are respectively split into a driving disc A, a driving disc B, a clamping disc A and a clamping disc B. When the tap lead 200 is inspected, it is only necessary to comb out the tap lead 200 and pass it from top to bottom through the unfolded driving disc A, driving disc B, and the unfolded clamping disc A and clamping disc B, so that the tap lead 200 can be easily fed into the clamping assembly. The center of the component is then combined with the driving disk A, the driving disk B and the clamping disk A, the clamping disk B, and the driving disk is controlled to rotate so that the clamping block 370 on the clamping disk can slide synchronously in the straight groove 343 and realize the expansion and contraction function. When fixing the tap lead 200, the three clamping blocks 370 are controlled to contract synchronously to complete the fixation of the tap lead 200. After the detection is completed, the three clamping blocks 370 are controlled to expand synchronously to cancel the fixation of the tap lead 200. Based on the above, the clamping assembly can assist in the detection of the tap lead 200 without disassembly, thereby reducing the difficulty of detecting the tap lead 200.

[0063] After the tap lead 200 is fed into the two fixed units, the gear 322 is driven to rotate by an external servo motor, and the gear 322 can be used to drive the teeth 334 to rotate the drive disk A, and through the hinged relationship with the drive disk B, the drive disk B331 is driven to rotate synchronously, so that the drive disks A330 and B331 rotate synchronously. When the drive disks rotate, the pin on one side of the clamping block 370 can be squeezed by means of the arc groove, and the clamping block 370 and the pin are slidably connected in the straight groove 343, thereby achieving the effect of synchronous contraction and expansion. When the clamping block 370 contracts synchronously, the tap lead 200 can be clamped, which is suitable for tap leads of various sizes. 200, similarly, it is also applicable to the detection of other types of installed cables; as mentioned above, after the detection is completed, it is necessary to use insulating glue to fill the cavity after puncture. In this embodiment, the insulating glue can be filled with existing technical means, which will not be repeated here. As for the winding of the insulating tape, in one embodiment, an insertion rod 354 is also provided on the L-shaped plate 353 for carrying the probe 352, and two are provided, symmetrically distributed. The insulating tape is put between the two insertion rods 354, and one end of the tape is manually attached to the tap lead 200. By driving the control slide 350 to rotate in the back groove 380, the puncture hole on the tap lead 200 can be closed.

[0064] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrical equipment safety detection device, characterized in that: include: A support unit, the support unit comprising an outer frame (100), a bracket (130) and a connecting shaft (120); the bracket (130) is arranged in the outer frame (100), and the bracket (130) and the outer frame (100) are slidably matched; the connecting shaft (120) is fixed to the outer frame (100), and the bracket (130) slides on the connecting shaft (120); A fixing unit is fixed to the top of the bracket (130); the fixing unit includes a first outer cover (310), a second outer cover (320) and a clamping assembly, the clamping assembly is movably connected in the first outer cover (310) and the second outer cover (320), one end of the first outer cover (310) and the second outer cover (320) are abutted, and the other end is provided with a spacing; The clamping assembly is used to clamp the tapping lead (200) after the tapping lead (200) passes through the first outer cover (310) and the other end of the second outer cover (320) with a spacing therebetween; A test unit is located between the two fixed units, and the test unit includes a probe (352), the probe (352) is slidably connected to the side wall of the fixed unit, and the needle of the probe (352) faces the tapping lead (200); The clamping assembly comprises a driving disc, a clamping disc and a clamping block (370); the driving disc and the clamping disc are arranged concentrically, and the clamping block (370) is slidably connected between the driving disc and the clamping disc; The driving disk includes a driving disk A and a driving disk B, and the driving disk A and the driving disk B are hinged at one end and abutted at the other end; the driving disk is provided with three arc-shaped grooves, and the three arc-shaped grooves are arranged in a circumferential array; The clamping disc comprises a clamping disc A and a clamping disc B, and one end of the clamping disc A and the clamping disc B are hinged and the other ends are abutted against each other; three straight grooves (343) are provided on the clamping disc, and the three straight grooves (343) are arranged in a circumferential array; The side wall of the clamping block (370) is fixedly connected to a pin, and the pin passes through the straight groove (343) and the arc groove in sequence; A plurality of teeth (334) are fixedly connected to the bottom of the drive disk A adjacent to the hinged position of the drive disk A and the drive disk B; a gear (322) is rotatably connected to the bottom of the second outer cover (320), and the gear (322) is meshed with the teeth (334).

2. The electrical equipment safety detection device according to claim 1, characterized in that: A first connecting groove (311) is provided on the surface of the first outer cover (310), and a second connecting groove (321) is provided on the surface of the second outer cover (320); The surfaces of the driving disc A and the driving disc B are respectively slidably connected to the first connecting groove (311) and the second connecting groove (321) via the pin shaft.

3. The electrical equipment safety detection device according to claim 2, characterized in that: A first shift rod (333) is provided on the driving disk B at one end adjacent to the hinged position of the driving disk A and the driving disk B, and the first shift rod (333) passes through the second outer cover (320); a second shift rod (342) is provided on the clamping disk B at one end adjacent to the hinged position of the clamping disk A and the clamping disk B, and the second shift rod (342) passes through the second outer cover (320).

4. The electrical equipment safety detection device according to claim 3, characterized in that: The first outer cover (310) and the second outer cover (320) are provided with a back groove (380); the test unit further comprises a slide (350), and the slide (350) is slidably connected in the back groove (380); the distance between the two ends of the slide (350) is greater than the distance between the other ends of the first outer cover (310) and the second outer cover (320).

5. The electrical equipment safety detection device according to claim 4, characterized in that: An L-shaped plate (353) is also fixed to the slide (350), and the probe (352) passes through the L-shaped plate (353). A spring (351) is sleeved on the probe (352), and the probe (352) is connected to the L-shaped plate (353) via the spring (351).

6. The electrical equipment safety detection device according to claim 5, characterized in that: An insertion rod (354) is fixedly connected to the L-shaped plate (353) perpendicular to the probe (352), and two insertion rods (354) are provided and symmetrically distributed on both sides of the probe (352).

7. The electrical equipment safety detection device according to claim 6, characterized in that: A connecting rod (360) is fixedly connected to the surfaces of the first outer cover (310) and the second outer cover (320), and the first outer cover (310) and the second outer cover (320) pass through the bracket (130) via the connecting rod (360) and are fixed to the bracket (130).

8. The electrical equipment safety detection device according to claim 7, characterized in that: The bracket (130) is configured as an L-shaped structure, and a slider (131) is fixedly connected to a side wall of the bracket (130) parallel to the connecting shaft (120), and a sliding groove (110) is provided on the side wall of the outer frame (100); the slider (131) is slidably connected to the sliding groove (110).

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