Overlimit self-separation insulating rod withstand voltage detection device and detection method thereof

Abstract

The over-limit self-separation insulating rod withstand voltage detection device comprises a first clamping seat and a second clamping seat, the first clamping seat comprises a first base and a first clamping plate located on the upper side of the first base, and a steel wire rope winding and unwinding device is installed on the lower side of the first base in an insulated mode; the steel wire rope take-up and pay-off device is electrically connected with the clamping piece on the first base, and a suction block is installed at the end of a steel wire rope of the steel wire rope take-up and pay-off device. The device further comprises a leakage current monitoring device located below the first clamping seat, the leakage current monitoring device comprises a shell, an electromagnet and a current controller are installed on the shell, one terminal of the input end of the current controller is used for being connected with high voltage, and the other terminal is connected with an iron core of the electromagnet. And two terminals of the control end of the current controller are connected in series on a circuit for supplying power to the electromagnet. During detection, if the leakage current of one insulating rod exceeds a threshold value, the high voltage of the insulating rod can be quickly and effectively cut off, and other insulating rods can still complete detection.

Description

Technical Field

[0001] The invention relates to the technical field of power tool withstand voltage detection equipment, and in particular to an over-limit self-detaching insulating rod withstand voltage detection device and a detection method thereof. Background Art

[0002] The insulating rod needs to undergo a withstand voltage test every year as required to check the insulation performance of the insulating rod and provide installation guarantee for high-voltage operation operators. Chinese patent document CN110514880A discloses a withstand voltage detection device for long rod insulating tools, which has multiple first brackets; the first bracket is composed of a base, two insulating pillars and a conductive bracket, and the same side of the base of the first bracket is provided with an open groove, and the slide rail passes through the upper end open grooves of all the first bracket bases at the same time; wherein the conductive bracket is composed of an upper bracket plate, an upper clamping part, a lower clamping part and a lower bracket plate, and the upper clamping part and the lower clamping part are wavy, and have the same shape and are symmetrically placed. Its advantages are: it solves the problem that the withstand voltage test of the insulating rod needs to be wired at both ends of the insulating rod body, and the winding wiring method is unsafe; and the distance between the two ends of the wiring needs to be measured each time; its disadvantages are: as the voltage increases, if the insulation performance of one of the insulating rods decreases, when the leakage current exceeds the threshold, the high voltage of the insulating rod cannot be quickly and effectively disconnected, and the high voltage power supply equipment can only be shut down to interrupt the detection. The other insulating rods have not completed the detection and need to be re-detected. Summary of the invention

[0003] In order to solve the current technical problems, the main purpose of the present invention is to provide an over-limit self-detaching insulating rod withstand voltage detection device and a detection method thereof, so as to solve the problem that when detecting, if the leakage current of one of the insulating rods exceeds the threshold, the high voltage electricity of this insulating rod can be quickly and effectively disconnected, and the other insulating rods can still complete the detection.

[0004] In order to overcome the problems existing in the prior art, the technical solution adopted by the present invention is: an over-limit self-detaching insulating rod withstand voltage detection device, comprising a first clamping seat and a second clamping seat, the first clamping seat and the second clamping seat are provided with a clamping piece for clamping the insulating rod, the first clamping seat comprises a first base and a first clamping plate located on the upper side of the first base, at least one clamping piece is respectively installed on the opposite side of the first base and the first clamping plate, the clamping piece is conductive, the clamping piece is insulated and connected to the first base and the first clamping plate, a wire rope retracting device is insulated and installed on the lower side of the first base, the wire rope retracting device is electrically connected to the clamping piece on the first base, and a suction block is installed on the wire rope end of the wire rope retracting device; it also includes a leakage current monitoring device located below the first clamping seat, the leakage current monitoring device comprises a shell, an electromagnet and a current controller are installed on the shell, one of the terminals at the input end of the current controller is used to connect to high voltage, the other terminal is connected to the iron core of the electromagnet, and the two terminals at the control end of the current controller are connected in series to the circuit that supplies power to the electromagnet.

[0005] An insulating layer is installed on the iron core of the electromagnet, a fixing plate is installed on the insulating layer, and another terminal of the input end of the current controller is electrically connected to the fixing plate.

[0006] The wire rope retracting and releasing device includes a shell, a central axis is installed in the shell, a take-up wheel is mounted on the central axis, the inner hole of the take-up wheel is connected to the central axis by a winding spring, one end of the wire rope is fixed and wound on the take-up wheel, and the other end extends out of the shell and is installed with a suction block; the shell is electrically connected to the clamping piece on the first base.

[0007] A conductive spring is fixedly mounted on the inner wall of the shell, and the conductive spring abuts against one side of the take-up wheel.

[0008] A plurality of first insulating slot blocks are installed at intervals on the upper side of the first base, a second insulating slot block is installed on the lower side of the first clamping plate at a position corresponding to the first insulating slot block, and the clamping members are installed in the first insulating slot block and the second insulating slot block respectively.

[0009] The clamping piece is conductive foam, and a conductive slot block is also installed in the first insulating slot block on the first base, and the clamping piece is installed in the conductive slot block. The conductive slot block is electrically connected to the wire rope retracting device through a connecting cable.

[0010] The second clamping seat includes a second base and a second clamping plate, one end of the second clamping plate is hinged to one end of the second base, and the other end of the second clamping plate is detachably connected to the other end of the second base; third grooves are arranged at intervals on the second base, and a clamping member is installed in the third groove; a fourth groove is arranged on the lower side of the second clamping plate at a position corresponding to the third groove, and a clamping member is also installed in the fourth groove; a grounding terminal is installed on the second base.

[0011] There are two second clamping seats, which are respectively located on both sides of the first clamping seat, the first clamping seat is installed on the first support seat through the first insulating rod, the second clamping seat is installed on the second support seat through the second insulating rod, and the leakage current monitoring device is installed on the first insulating rod; it also includes a bottom frame, the first support seat is fixedly installed on the middle part of the upper side of the bottom frame, at least two guide rails are installed between the two sides of the first support seat and the bottom frame, a sliding seat is installed on the lower side of the second support seat, and the two second support seats are slidably installed on the guide rails located on both sides of the first support seat through the sliding seat.

[0012] A driver is also installed in the first support seat, and the output shafts on both sides of the driver are respectively connected to screw rods, wherein the screw rod on one side is a positive thread and the screw rod on the other side is a negative thread. Nut seats are respectively installed on the lower sides of the second support seats on both sides, and the nut seats on both sides are respectively screwed together with the screw rods on both sides.

[0013] A detection method for performing a withstand voltage test on an insulating rod, the detection method adopts the over-limit self-detaching insulating rod withstand voltage detection device, and the detection method comprises the following steps: S1, clamping the insulating rod on the first clamping seat and the second clamping seat; S2, electrically connecting the high-voltage output terminal of the high-voltage power supply device to one of the terminals of the current controller, and grounding the second clamping base; S3, the current controller adopts the normally closed type, the electromagnet is connected to the power supply, and then the suction block is pulled down to adsorb the suction block on the electromagnet; S4. The high-voltage power supply equipment is started. If the insulation performance of the insulating rod is reduced, the current passes through the current controller, electromagnet, suction block, and wire rope, and then flows to the insulating rod through the clamp on the first base, and then flows to the ground through the second clamp. The current controller displays the leakage current. When the leakage current exceeds the threshold, the control end of the current controller is disconnected, the electromagnet loses power, the wire rope retracting device quickly retracts the wire rope, and the high-voltage circuit is disconnected.

[0014] The present invention has the following beneficial effects: 1. When the detection device of the present invention is used to detect the insulating rod, the two ends of the insulating rod are clamped on the first clamp seat and the second clamp seat respectively, the high-voltage output end of the high-voltage power supply device is electrically connected to one of the terminals of the current controller, and the second clamp seat is grounded. After the electromagnet is powered on, the suction block is pulled down and the suction block is adsorbed on the electromagnet. When the high-voltage power supply equipment is started, if the insulation performance of the insulating rod is reduced, the current passes through the current controller, the electromagnet, the suction block, and the wire rope, and then flows to the insulating rod through the clamp on the first base, and then flows to the ground through the second clamp seat. The current controller displays the leakage current. When the leakage current exceeds the threshold, the control end of the current controller is disconnected, the electromagnet loses power, the wire rope retracting device quickly retracts the wire rope, and the high-voltage circuit is disconnected. When multiple insulating rods are detected, if the leakage current of one of the insulating rods exceeds the threshold, the circuit of the corresponding electromagnet is disconnected by controlling the corresponding current controller, so that the high voltage of the insulating rod is quickly and effectively disconnected, and the other insulating rods can still complete the detection. And because of this structure, it also solves the problem that when using an ordinary circuit breaker to disconnect high voltage electricity, the two contacts will arc when disconnected due to the short distance between the two contacts, resulting in the inability to disconnect the high voltage circuit.

[0015] 2. The present invention can adjust the positions of the second clamping seats on both sides to facilitate adapting to insulating rods of different lengths. A driver is also installed in the first support seat to realize the electric adjustment of the second clamping seats on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a structural schematic diagram of another viewing angle of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the first clamping base and the leakage current monitoring device of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the bottom frame of the present invention.

[0021] Figure 5 It is a wiring diagram of the electromagnet and the current controller of the present invention.

[0022] Figure 6It is a schematic structural diagram of the first clamping seat of the present invention.

[0023] Figure 7 for Figure 6 Schematic diagram of the AA section structure.

[0024] Figure 8 It is a schematic structural diagram of the steel wire rope retracting and releasing device of the present invention.

[0025] Fig. 9 It is a schematic structural diagram of the second clamping seat of the present invention.

[0026] Fig.10 for Fig. 9 Schematic diagram of the AA section structure.

[0027] Reference numerals: Bottom frame 10, first support base 11, guide rail 12; A second support seat 20, a slide seat 21, and a nut seat 22; Driver 30, screw rod 31; A first insulating rod 40; A second insulating rod 50; A first clamping seat 60, a first base 61, a first mounting groove 611, a first insulating groove block 612, a conductive groove block 613, a connecting cable 614, a first clamping plate 62, a second mounting groove 621, a second insulating groove block 622, a clamping member 63, a locking plate 64, a locking screw 65, a wire rope retracting device 66, a housing 661, a central shaft 662, a reel 663, a coil spring 664, a wire rope 665, a suction block 666, and a conductive spring 667; A second clamping seat 70, a second base 71, a third groove 711, a second clamping plate 72, a fourth groove 721, and a grounding terminal 73; Leakage current monitoring device 80, high voltage terminal 81, electromagnet 82, insulating layer 821, fixing plate 822, current controller 83, Insulating rod 90. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: See also Figure 1-10The present embodiment provides an over-limit self-detaching insulating rod withstand voltage detection device, including a first clamping seat 60 and a second clamping seat 70, the first clamping seat 60 and the second clamping seat 70 are respectively provided with a clamping member 63 for clamping an insulating rod 90, the first clamping seat 60 includes a first base 61 and a first clamping plate 62 located on the upper side of the first base 61, and at least one clamping member 63 is respectively installed on the opposite side of the first base 61 and the first clamping plate 62, the clamping member 63 is conductive, and the clamping member 63 is insulated and connected to the first base 61 and the first clamping plate 62, and a steel is installed on the lower side of the first base 61. The wire rope retracting device 66 is electrically connected to the clamping piece 63 on the first base 61, and a suction block 666 is installed at the end of the wire rope 665 of the wire rope retracting device 66; it also includes a leakage current monitoring device 80 located below the first clamping seat 60, and the leakage current monitoring device 80 includes a shell, and an electromagnet 82 and a current controller 83 are installed on the shell. One of the terminals of the input end of the current controller 83 is used to connect to the high voltage, and the other terminal is connected to the iron core of the electromagnet 82. The two terminals of the control end of the current controller 83 are connected in series to the circuit that supplies power to the electromagnet 82.

[0030] In this embodiment, the current controller 83 is a normally closed type. Figure 5 , connect the electromagnet 82 to the power supply, pull down the suction block 666, pull out the wire rope 665, and then the suction block 666 can be adsorbed on the electromagnet 82, so that the high voltage is connected to the suction block 666.

[0031] The first clamping seat 60 is provided with clamping members 63 which are spaced apart and insulated from each other. The clamping members 63 are used to clamp the insulating rods 90, so that each insulating rod 90 can be subjected to a separate withstand voltage test. In this embodiment, the first base 61 and the first clamping plate 62 are made of bakelite, which has good insulation. The clamping members 63 can be V-shaped grooves, and the clamping members 63 are fixed to the first base 61 and the first clamping plate 60 by bolts or bonding. The corresponding clamping members 63 on the first base 61 and the first clamping plate 60 clamp the insulating rods 90. The second clamping seat 70 can adopt the conductive bracket in CN110514880A.

[0032] During the test, the two ends of the insulating rod 90 are clamped on the first clamp seat 60 and the second clamp seat 70 respectively, the high-voltage output end of the high-voltage power supply device is electrically connected to one of the terminals of the current controller 83, and the second clamp seat 70 is grounded. After the electromagnet 82 is powered on, the suction block 666 is pulled down and the suction block 666 is adsorbed on the electromagnet 82. When the high-voltage power supply device is started, if the insulation performance of the insulating rod 90 is reduced, the current passes through the current controller 83, the electromagnet 82, the suction block 666, and the wire rope 665, and then flows to the insulating rod 90 through the clamping member 63 on the first base 61, and then flows to the ground through the second clamp seat 70. The current controller 83 displays a leakage current. When the leakage current exceeds the threshold, the control end of the current controller 83 is disconnected, the electromagnet 82 loses power, and the wire rope retracting device 66 quickly retracts the wire rope 665, and the high-voltage circuit is disconnected.

[0033] When testing multiple insulating rods 90, if the leakage current of one of the insulating rods 90 exceeds the threshold, the circuit of the corresponding electromagnet 82 is disconnected by controlling the corresponding current controller 83, thereby quickly and effectively disconnecting the high voltage of the insulating rod, and the other insulating rods can still complete the test.

[0034] And because of this structure, it also solves the problem that when using an ordinary circuit breaker to disconnect high voltage electricity, the two contacts will arc when disconnected due to the short distance between the two contacts, resulting in the inability to disconnect the high voltage circuit.

[0035] In this embodiment, see Figure 5 The core of the electromagnet 82 is provided with an insulating layer 821, a fixing plate 822 is provided on the insulating layer 821, and the other terminal of the input end of the current controller 83 is electrically connected to the fixing plate 822. Through the above structure, the high voltage point is further isolated from the electromagnet 82 to prevent the high voltage from affecting the electromagnet.

[0036] See also Figure 7 , 8 The wire rope retracting device 66 comprises a housing 661, a central shaft 662 is installed in the housing 661, a take-up wheel 663 is mounted on the central shaft 662, the inner hole of the take-up wheel 663 is connected to the central shaft 662 through a coil spring 664, one end of the wire rope 665 is fixed and wound on the take-up wheel 663, and the other end is extended out of the housing 661 and a suction block 666 is installed; the housing 661 is electrically connected to the clamping member 63 on the first base 61. Through the above structure, the wire rope 665 can be automatically reeled.

[0037] It should be noted that, in the present application, in order to achieve the conductive effect, all components in the wire rope retracting and releasing device 66 are made of metal.

[0038] When the coil spring 664 is installed, the two ends of the coil spring 664 are clamped on the central shaft 662 and the take-up wheel 663, which has a certain influence on the conductivity. In order to improve the conductivity, see Figure 8 A conductive spring piece 667 is fixedly installed on the inner wall of the shell 661 , and the conductive spring piece 667 abuts against one side of the take-up wheel 663 .

[0039] See also Figure 6 , 7 A plurality of first insulating slot blocks 612 are installed at intervals on the upper side of the first base 61, a second insulating slot block 622 is installed at the lower side of the first clamping plate 62 at a position corresponding to the first insulating slot block 612, and a clamping member 63 is installed in each of the first insulating slot block 612 and the second insulating slot block 622. When this structure is adopted, the first base 61 and the first clamping plate 62 can adopt a metal structure, which has a higher structural strength, and by installing the first insulating slot block 612 and the second insulating slot block 622, adjacent clamping members 63 can also be insulated and separated.

[0040] Furthermore, the clamping member 63 is a conductive foam, and a conductive slot block 613 is also installed in the first insulating slot block 612 on the first base 61. The clamping member 63 is installed in the conductive slot block 613, and the conductive slot block 613 is electrically connected to the wire rope retracting device 66 through a connecting cable 614.

[0041] Specifically, the clamping member 63 may be an integral groove structure made of conductive foam, or may be a groove structure consisting of two cylinders. Figure 6 As shown, a groove structure consisting of two cylinders is adopted. During detection, the insulating rod is placed in the groove between the two cylinders.

[0042] See also Fig. 9 , 10 The second clamping seat 70 includes a second base 71 and a second clamping plate 72, one end of the second clamping plate 72 is hinged to one end of the second base 71, and the other end of the second clamping plate 72 is detachably connected to the other end of the second base 71; the second base 71 is provided with third grooves 711 at intervals, and the clamping member 63 is installed in the third groove 711; the lower side of the second clamping plate 72 is provided with a fourth groove 721 at a position corresponding to the third groove 711, and the clamping member 63 is also installed in the fourth groove 721; the second base 71 is provided with a grounding terminal 76. During detection, the grounding terminal 76 is grounded through a wire.

[0043] In this embodiment, the current controller 83 may be a current relay.

[0044] See also Figure 6One end of the first clamping plate 62 is hinged to one end of the first base 61, and the other end of the first clamping plate 62 is fixedly mounted with a locking plate 64, which is provided with a locking hole. When the first clamping plate 62 and the first base 61 are closed, the locking screw 65 is inserted into the locking hole and then screwed to the first base 61 to limit the first clamping plate 62 and the first base 61. Similarly, see Fig. 9 The locking limit of the second base 71 of the second clamping seat 70 and the second clamping plate 72 also adopts the same structure.

[0045] Embodiment 2: Based on Example 1, see Figure 1 , 2 , two second clamping seats 70 are provided, and the two second clamping seats 70 are respectively located on both sides of the first clamping seat 60, the first clamping seat 60 is installed on the first support seat 11 through the first insulating rod 40, the second clamping seat 70 is installed on the second support seat 20 through the second insulating rod 50, and the leakage current monitoring device 80 is installed on the first insulating rod 40. It also includes a bottom frame 10, the first support seat 11 is fixedly installed in the middle of the upper side of the bottom frame 10, at least two guide rails 12 are installed between the two sides of the first support seat 11 and the bottom frame 10, and a slide seat 21 is installed on the lower side of the second support seat 20, and the two second support seats 20 are slidably installed on the guide rails 12 located on both sides of the first support seat 11 through the slide seat 21.

[0046] Through the above structure, the positions of the second clamping seats 70 on both sides can be adjusted to facilitate adapting to insulating rods 90 of different lengths.

[0047] Further, see Figure 4 A driver 30 is also installed in the first support seat 11. The output shafts on both sides of the driver 30 are connected with screws 31, wherein the screws 31 on one side are positive threads and the screws 31 on the other side are negative threads. Nut seats 22 are installed on the lower sides of the second support seats 20 on both sides, and the nut seats 22 on both sides are respectively screwed with the screws 31 on both sides. Through the above structure, the electric adjustment of the second clamping seats 70 on both sides is realized.

[0048] The driver 30 adopts a reduction motor with symmetrical dual output shafts. When the driver 30 rotates, it synchronously drives the screw rods 31 on both sides to rotate. Since the screw rods 31 on both sides have positive teeth and negative teeth respectively, the second support seats 20 on both sides are driven to move synchronously toward or away from each other.

[0049] Embodiment 3: On the basis of Example 1 or Example 2, a detection method is proposed for performing a withstand voltage test on the insulating rod 90. The detection method adopts the above-mentioned over-limit self-detaching insulating rod withstand voltage detection device. The detection method includes the following steps: S1, clamping the insulating rod 90 on the first clamping seat 60 and the second clamping seat 70; S2, electrically connecting the high-voltage output terminal of the high-voltage power supply device to one of the terminals of the current controller 83, and grounding the ground terminal 76 of the second clamping seat 70 through a wire; S3, the current controller 83 is of normally closed type, firstly, the electromagnet 82 is powered on, the suction block 666 is pulled down, and the suction block 666 is adsorbed on the electromagnet 82; S4, the high-voltage power supply equipment is started. If the insulation performance of the insulating rod 90 is reduced, the current passes through the current controller 83, the electromagnet 82, the suction block 666, and the wire rope 665, and then flows to the insulating rod 90 through the clamping piece 63 on the first base 61, and then flows to the ground through the second clamping seat 70. The current controller 83 displays the leakage current. When the leakage current exceeds the threshold, the control end of the current controller 83 is disconnected, the electromagnet 82 loses power, and the wire rope retracting device 66 quickly retracts the wire rope 665, and the high-voltage circuit is disconnected.

[0050] The above embodiments are only used to illustrate the present invention, wherein the structure, connection mode and manufacturing process of each component may be changed. Any equivalent transformations and improvements based on the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. An over-limit self-detaching insulating rod withstand voltage detection device, comprising a first clamping seat (60) and a second clamping seat (70), wherein the first clamping seat (60) and the second clamping seat (70) are provided with a clamping member (63) for clamping an insulating rod (90), and the first clamping seat (60) comprises a first base (61) and a first clamping plate (62) located on the upper side of the first base (61), characterized in that: At least one clamping member (63) is installed on one side of the first base (61) and the first clamping plate (62) opposite to each other, the clamping member (63) is conductive, the clamping member (63) is insulated and connected to the first base (61) and the first clamping plate (62), a wire rope retracting device (66) is installed insulated on the lower side of the first base (61), the wire rope retracting device (66) is electrically connected to the clamping member (63) on the first base (61), and a suction block (666) is installed at the end of the wire rope (665) of the wire rope retracting device (66); The invention also comprises a leakage current monitoring device (80) located below the first clamping seat (60), the leakage current monitoring device (80) comprising a shell, an electromagnet (82) and a current controller (83) being mounted on the shell, one of the terminals at the input end of the current controller (83) being used to receive high voltage, the other terminal being connected to the iron core of the electromagnet (82), and two terminals at the control end of the current controller (83) being connected in series to a circuit for supplying power to the electromagnet (82).

2. The over-limit self-detaching insulating rod withstand voltage detection device according to claim 1 is characterized in that: An insulating layer (821) is installed on the iron core of the electromagnet (82), a fixing plate (822) is installed on the insulating layer (821), and another terminal of the input end of the current controller (83) is electrically connected to the fixing plate (822).

3. The over-limit self-detaching insulating rod withstand voltage detection device according to claim 1 is characterized in that: The steel wire rope retracting and releasing device (66) comprises a housing (661), a central shaft (662) is installed in the housing (661), a take-up wheel (663) is mounted on the central shaft (662), an inner hole of the take-up wheel (663) is connected to the central shaft (662) via a coil spring (664), one end of the steel wire rope (665) is fixed and wound around the take-up wheel (663), and the other end of the steel wire rope (665) is extended out of the housing (661) and is installed with a suction block (666); the housing (661) is electrically connected to a clamping member (63) on the first base (61).

4. The over-limit self-detaching insulating rod withstand voltage detection device according to claim 3 is characterized in that: A conductive spring sheet (667) is fixedly mounted on the inner wall of the housing (661), and the conductive spring sheet (667) abuts against one side of the take-up wheel (663).

5. The over-limit self-detaching insulating rod withstand voltage detection device according to claim 1 is characterized in that: A plurality of first insulating slot blocks (612) are installed at intervals on the upper side of the first base (61); a second insulating slot block (622) is installed on the lower side of the first clamping plate (62) at a position corresponding to the first insulating slot block (612); and the clamping member (63) is installed in the first insulating slot block (612) and the second insulating slot block (622), respectively.

6. The over-limit self-detaching insulating rod withstand voltage detection device according to claim 5 is characterized in that: The clamping member (63) is a conductive foam, and a conductive slot block (613) is also installed in the first insulating slot block (612) on the first base (61), and the clamping member (63) is installed in the conductive slot block (613). The conductive slot block (613) is electrically connected to the wire rope retracting and releasing device (66) via a connecting cable (614).

7. The over-limit self-detaching insulating rod withstand voltage detection device according to claim 1 is characterized in that: The second clamping seat (70) comprises a second base (71) and a second clamping plate (72); one end of the second clamping plate (72) is hinged to one end of the second base (71), and the other end of the second clamping plate (72) is detachably connected to the other end of the second base (71); third grooves (711) are arranged at intervals on the second base (71), and a clamping member (63) is installed in the third groove (711); a fourth groove (721) is arranged on the lower side of the second clamping plate (72) at a position corresponding to the third groove (711), and a clamping member (63) is also installed in the fourth groove (721); and a grounding terminal (76) is installed on the second base (71).

8. The over-limit self-detaching insulating rod withstand voltage detection device according to claim 1 is characterized in that: Two second clamping seats (70) are provided, the two second clamping seats (70) are respectively located on both sides of the first clamping seat (60), the first clamping seat (60) is mounted on the first support seat (11) via a first insulating rod (40), the second clamping seat (70) is mounted on the second support seat (20) via a second insulating rod (50), and the leakage current monitoring device (80) is mounted on the first insulating rod (40); It also comprises a bottom frame (10), the first support seat (11) being fixedly mounted on the middle part of the upper side of the bottom frame (10), at least two guide rails (12) being mounted between the two sides of the first support seat (11) and the bottom frame (10), a slide seat (21) being mounted on the lower side of the second support seat (20), and the two second support seats (20) being slidably mounted on the guide rails (12) located on the two sides of the first support seat (11) via the slide seats (21).

9. The over-limit self-detaching insulating rod withstand voltage detection device according to claim 8 is characterized in that: A driver (30) is also installed in the first support seat (11), and the output shafts on both sides of the driver (30) are respectively connected to screw rods (31), wherein the screw rod (31) on one side is a positive thread, and the screw rod (31) on the other side is a negative thread, and nut seats (22) are respectively installed on the lower sides of the second support seats (20) on both sides, and the nut seats (22) on both sides are respectively screwed with the screw rods (31) on both sides.

10. A detection method for performing a withstand voltage test on an insulating rod (90), characterized in that: The over-limit self-detaching insulating rod withstand voltage detection device according to any one of claims 1 to 9 is adopted, and the detection method comprises the following steps: S1, clamping the insulating rod (90) on the first clamping seat (60) and the second clamping seat (70); S2, electrically connecting the high-voltage output end of the high-voltage power supply device to one of the terminals of the current controller (83), and grounding the second clamping seat (70); S3, the current controller (83) is of normally closed type, the electromagnet (82) is connected to the power supply, and then the suction block (666) is pulled down to adsorb the suction block (666) on the electromagnet (82); S4, the high-voltage power supply equipment is started. If the insulation performance of the insulating rod (90) is reduced, the current passes through the current controller (83), the electromagnet (82), the suction block (666), the steel wire rope (665), and then flows to the insulating rod (90) through the clamping member (63) on the first base (61), and then flows to the ground through the second clamping seat (70). The current controller (83) displays the leakage current. When the leakage current exceeds the threshold value, the control end of the current controller (83) is disconnected, the electromagnet (82) loses power, the steel wire rope retracting device (66) quickly retracts the steel wire rope (665), and the high-voltage circuit is disconnected.

Images