Insulation arm leakage current detection device

Abstract

The invention discloses an insulation arm leakage current detection device, and relates to the technical field of electric power detection, the insulation arm leakage current detection device comprises a power supply module and a plurality of groups of electric leakage detection assemblies installed on an insulation arm, the power supply module is internally provided with a controller, the insulation arm is composed of a plurality of groups of telescopic arms, and the telescopic arms are connected with the controller. And the groups of telescopic arms are arranged in a mutual sleeving state. Through cooperation of the power supply module and the multiple groups of electric leakage detection assemblies, automatic and accurate electric leakage detection operation is realized, the detection accuracy is ensured while the detection efficiency is improved, and in the installation process of the electric leakage detection assemblies, through mutual cooperation of the pressure extraction assembly, the sealing assembly and other components, the electric leakage detection efficiency is improved. The sealing performance of the abutting position of the mounting cover and the telescopic arm is ensured, the influence of external moist molecules, dust and foreign matters on abutting contact of the detection head and the outer side of the telescopic arm is reduced, and the accuracy of electric leakage detection is further ensured.

Description

Technical Field

[0001] The invention relates to the technical field of electric power detection, in particular to an insulating arm leakage current detection device. Background Art

[0002] The insulating arm is the core component of the insulated boom truck, which is mainly used to isolate high-voltage current to protect the safety of workers and equipment. However, due to environmental factors and long-term use, the insulating arm may age and wear, resulting in a decrease in its insulation performance, thereby generating leakage current. If this leakage current exceeds a certain level, it may cause harm to workers and equipment.

[0003] At present, the leakage current detection of the insulating arm mainly relies on manual regular inspection and maintenance. This method is not only inefficient but also difficult to ensure accuracy. Therefore, we propose an insulating arm leakage current detection device. Summary of the invention

[0004] The object of the present invention is to provide an insulating arm leakage current detection device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: an insulating arm leakage current detection device, comprising a power module and a plurality of groups of leakage detection components installed on the insulating arm, wherein a controller is arranged inside the power module, the insulating arm is composed of a plurality of groups of telescopic arms, each group of the telescopic arms is arranged in a mutually sleeved state, and each group of the leakage detection components is respectively installed on each group of the telescopic arms;

[0006] The leakage detection component includes a mounting seat, which is detachably mounted on the outer side of the telescopic arm by means of bolts, a mounting cover is connected to the bottom of the mounting seat through the telescopic assembly, a detection head for abutting against the outer side of the telescopic arm is fixed on the mounting cover, the lower end of the detection head is flush with the lower end of the mounting cover, a detection wire is connected to the mounting seat, one end of the detection wire is fixed to the end of the detection head, an accordion cover for protecting the telescopic assembly is arranged between the mounting seat and the mounting cover, a pumping and pressing assembly for pumping and pressing the inside of the mounting cover is arranged on the mounting cover, a sealing assembly for sealing against the outer side of the telescopic arm is arranged at the lower end of the mounting cover, a rectangular cover is fixed to the upper end of the mounting seat, and a storage assembly for assisting in storing the detection wire is arranged on the rectangular cover.

[0007] Preferably, the telescopic assembly includes multiple groups of first sleeves fixed to the lower end of the mounting seat, the first sleeves are slidably connected with a first slide rod, one end of the first slide rod is fixed to the upper end of the mounting cover, and the outer side of the first sleeve is sleeved with a first spring, and the two ends of the first spring are respectively connected to the mounting seat and the mounting cover.

[0008] Preferably, the suction and pressure components are provided in multiple groups, and the multiple groups of suction and pressure components are arranged in a ring array on the mounting cover, the suction and pressure components include a piston cylinder fixed on the mounting cover, a piston rod is slidably connected to the piston cylinder, a rectangular plate is fixed to one end of the piston rod located outside the mounting cover, a connecting component for connecting the rectangular plate is provided on the mounting cover, and a transmission component for transmitting the rectangular plate is provided between the mounting seat and the rectangular plate.

[0009] Preferably, the transmission assembly includes a transmission frame fixed on a rectangular plate, a transmission pin is fixed on the transmission frame, a strip plate is fixed on the lower end of the mounting seat, a transmission plate is fixed on the strip plate, an inclined groove is opened on the transmission plate, and the transmission pin is slidably connected to the inclined groove.

[0010] Preferably, the connecting assembly includes a U-shaped frame fixed to the outside of the mounting cover, a plurality of groups of second sleeves are fixed on the rectangular plate, a second sliding rod is slidably connected to the second sleeve, one end of the second sliding rod is fixed to the U-shaped frame, and a second spring is sleeved on the outside of each group of the second sleeves.

[0011] Preferably, the sealing assembly comprises an annular groove formed at the lower end of the mounting cover, and a sealing ring for abutting against the outer side of the telescopic arm is installed inside the annular groove.

[0012] Preferably, the storage assembly includes a fixed frame and a movable frame arranged inside the rectangular cover, the fixed frame is fixed to the inside of the rectangular cover by multiple groups of fixing rods, an elastic component for assisting elastic connection is arranged between the fixed frame and the movable frame, and multiple groups of support rollers for supporting the detection wires are rotatably connected to the fixed frame and the movable frame.

[0013] Preferably, the elastic component includes multiple groups of third sleeves fixed on the movable frame, the third sleeves are slidably connected with a third sliding rod, one end of the third sliding rod is fixed to one side of the fixed frame, and the outer side of the third sleeve is sleeved with a third spring, and the third spring and the two ends of the third spring are respectively set to resist the fixed frame and the movable frame.

[0014] Preferably, a conveying assembly for assisting the conveying of the detection wire is provided on one side of the rectangular cover, and the conveying assembly includes two groups of support frames fixed to the outside of the rectangular cover, and conveying rollers for conveying the detection wire are rotatably connected to the support frames.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention realizes automatic and accurate leakage detection operation through the cooperation of a power module and multiple groups of leakage detection components, improves the detection efficiency and ensures the accuracy of the detection. During the installation of the leakage detection component, the mutual cooperation of the pumping and pressing component and the sealing component and other components ensures the sealing of the abutment position between the installation cover and the telescopic arm, reduces the influence of external moisture molecules, dust and foreign matter on the abutment contact between the detection head and the outer side of the telescopic arm, and further ensures the accuracy of the leakage detection. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a schematic diagram of the structure of the telescopic arm and the leakage detection assembly of the present invention;

[0019] Figure 3 It is a schematic diagram of the mounting seat and the cover structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the conveying assembly of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the storage component and the elastic component of the present invention;

[0022] Figure 6 It is a schematic diagram of the telescopic assembly structure of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of the connection assembly of the present invention;

[0024] Figure 8 It is a schematic diagram of the transmission assembly structure of the present invention;

[0025] Fig. 9 It is a schematic diagram of the structure of the mounting cover of the present invention;

[0026] Fig.10 It is a transmission schematic diagram of the pumping and pressing process of the present invention;

[0027] Fig.11 It is a schematic diagram of the leakage detection process of the present invention.

[0028] In the figure: 1, telescopic arm; 201, mounting seat; 202, mounting cover; 203, detection head; 204, detection wire; 205, accordion cover; 301, first sleeve; 302, first slide bar; 303, first spring; 401, piston cylinder; 402, piston rod; 403, rectangular plate; 501, second sleeve; 502, second slide bar; 503, second spring; 504, U-shaped frame; 601, transmission frame; 602, transmission pin; 603, strip plate; 604, transmission plate; 605, inclined groove; 701, annular groove; 702, sealing ring; 8, rectangular cover; 901, fixed frame; 902, movable frame; 903, fixed rod; 904, support roller; 1001, third sleeve; 1002, third slide bar; 1003, third spring; 1101, support frame; 1102, conveying roller. DETAILED DESCRIPTION

[0029] 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.

[0030] Example 1

[0031] See also Figure 1-Figure 11 , an insulating arm leakage current detection device shown in the figure includes a power module and multiple groups of leakage detection components installed on the insulating arm, a controller is arranged inside the power module, the insulating arm is composed of multiple groups of telescopic arms 1, each group of telescopic arms 1 is arranged in a mutually sleeved state, and each group of leakage detection components is respectively installed on each group of telescopic arms 1;

[0032] It should be noted here that the power module includes a display screen, a 4G module, a speaker, a CAN module, a control module, and a detection module. The power module can stabilize the DC12V or DC24V power supply of the vehicle chassis to DC24V to power the electrical components in the leakage current detection device;

[0033] The display screen can display common information such as leakage current, leakage location, calibration information, fault information, communication status, etc. in real time;

[0034] The 4G module can upload the leakage current to the remote server in real time, which is convenient for the information management and control of the insulation arm. When the leakage current detection device detects that the leakage current of the insulation arm exceeds the set value, the speaker will alarm, reminding the staff to repair the insulation arm in time;

[0035] The CAN module can send the current value detected by the leakage current detection device to the vehicle controller or display screen through CAN communication, so as to realize the integrated control of the vehicle;

[0036] The control module is the core component of the leakage current detection device. It performs digital calculations on the current value of the detection module and determines the state of the insulation arm by comparing the set leakage current threshold with the real-time detection data.

[0037] The control communication module provides insulation arm leakage current information to the local or remote control end;

[0038] Control the operation of the speaker and give an alarm when the leakage current exceeds the set value; control the display screen to display corresponding information according to the customer's operation content;

[0039] Among them, the display screen, 4G module, speaker, CAN module, control module and detection module are conventional technical means for leakage detection and are regarded as prior art in this application, so no further elaboration is made here.

[0040] The leakage detection component includes a mounting seat 201, which is detachably mounted on the outer side of the telescopic arm 1 by means of bolts, and a mounting cover 202 is connected to the lower side of the mounting seat 201 through a telescopic component, and a detection head 203 for abutting against the outer side of the telescopic arm 1 is fixed on the mounting cover 202, and the lower end of the detection head 203 is flush with the lower end of the mounting cover 202, and a detection wire 204 is connected to the mounting seat 201, and one end of the detection wire 204 is fixed to the end of the detection head 203, and an accordion cover 205 for protecting the telescopic component is arranged between the mounting seat 201 and the mounting cover 202, and a pressure extraction component for extracting and pressing the inside of the mounting cover 202 is arranged on the mounting cover 202, and a sealing component for sealing against the outer side of the telescopic arm 1 is arranged at the lower end of the mounting cover 202, and a rectangular cover 8 is fixed to the upper end of the mounting seat 201, and a storage component for assisting in storing the detection wire 204 is arranged on the rectangular cover 8;

[0041] It should be noted here that during the installation of the leakage detection component, the sealing performance of the abutment position between the installation cover 202 and the telescopic arm 1 is ensured through the cooperation of the suction and pressure component and the sealing component, thereby reducing the influence of external moisture molecules, dust and foreign matter on the abutment contact between the detection head 203 and the outer side of the telescopic arm 1, and further ensuring the accuracy of leakage detection.

[0042] Preferably, the telescopic assembly includes a plurality of first sleeves 301 fixed to the lower end of the mounting seat 201, a first slide bar 302 is slidably connected to the first sleeve 301, one end of the first slide bar 302 is fixed to the upper end of the mounting cover 202, a first spring 303 is sleeved on the outer side of the first sleeve 301, and both ends of the first spring 303 are respectively connected to the mounting seat 201 and the mounting cover 202;

[0043] It should be noted here that: the mounting seat 201 is pushed toward the specified position on the outside of the telescopic arm 1. During the pushing process, the lower end of the mounting cover 202 and the end of the detection head 203 are abutted against the outside of the telescopic arm 1. After the abutment, through the continued pushing action of the mounting seat 201 and the abutment and limiting action of the telescopic arm 1 on the mounting cover 202, the first slide bar 302 is forced to slide on the first sleeve 301 and the first spring 303 is deformed by the force to generate elastic force. Through the elastic force of the first spring 303, it is convenient to push the mounting cover 202 to keep abutting against the outside of the telescopic arm 1.

[0044] Preferably, multiple groups of pumping and pressing components are provided, and the multiple groups of pumping and pressing components are arranged in a state of an annular array on the mounting cover 202, the pumping and pressing components include a piston cylinder 401 which is connected and fixed on the mounting cover 202, a piston rod 402 is slidably connected to the piston cylinder 401, a rectangular plate 403 is fixed to one end of the piston rod 402 located outside the mounting cover 202, a connecting component for connecting the rectangular plate 403 is provided on the mounting cover 202, and a transmission component for transmitting the rectangular plate 403 is provided between the mounting seat 201 and the rectangular plate 403; the transmission component includes a transmission frame 601 fixed on the rectangular plate 403, a transmission pin 602 is fixed on the transmission frame 601, a strip plate 603 is fixed on the lower end of the mounting seat 201, a transmission plate 604 is fixed on the strip plate 603, an inclined groove 605 is provided on the transmission plate 604, and the transmission pin 602 is slidably connected to the inclined groove 605;

[0045] It should be noted here that: during the process of the mounting seat 201 contracting toward the mounting cover 202, the transmission plate 604 is driven to move synchronously through the strip plate 603. During the movement of the transmission plate 604, the oblique groove 605 on the transmission plate 604 and the transmission pin 602 are driven to resist each other, so as to drive each group of transmission frames 601 and the rectangular plate 403 to move under force. During the movement of the rectangular plate 403, the second sleeve 501 and the second slide rod 502 on the connecting assembly are used to slide and guide the rectangular plate 403 under force to move toward the outer side of the mounting cover 202. During the movement, because the lower end of the mounting cover 202 resists against the outer side of the telescopic arm 1, the movement of the rectangular plate 403 forces the piston rod 402 to slide outward on the piston cylinder 401. Through the sliding of the piston rod 402, the interior of the mounting cover 202 is compressed.

[0046] Preferably, the connecting assembly includes a U-shaped frame 504 fixed to the outside of the mounting cover 202, a plurality of groups of second sleeves 501 are fixed on the rectangular plate 403, a second slide bar 502 is slidably connected to the second sleeve 501, one end of the second slide bar 502 is fixed to the U-shaped frame 504, and a second spring 503 is sleeved on the outside of each group of second sleeves 501;

[0047] It should be noted that the second sleeve 501 and the second slide bar 502 on the U-shaped frame 504 facilitate the extension and retraction guidance of the rectangular plate 403 after being stressed, and the second spring 503 facilitates the resetting of the rectangular plate 403 after the extension and retraction movement.

[0048] Preferably, the sealing assembly includes an annular groove 701 formed at the lower end of the mounting cover 202, and a sealing ring 702 is installed inside the annular groove 701 for abutting against the outer side of the telescopic arm 1;

[0049] It should be noted here that: during the process of the mounting cover 202 abutting against the outer side of the telescopic arm 1 , the sealing ring 702 inside the annular groove 701 ensures that the mounting cover 202 abuts against the outer side of the telescopic arm 1 .

[0050] Preferably, the storage assembly includes a fixed frame 901 and a movable frame 902 disposed inside the rectangular cover 8, the fixed frame 901 is fixed to the inside of the rectangular cover 8 through multiple sets of fixing rods 903, an elastic component for assisting elastic connection is disposed between the fixed frame 901 and the movable frame 902, and multiple sets of supporting rollers 904 for supporting the detection wire 204 are rotatably connected to the fixed frame 901 and the movable frame 902;

[0051] It should be noted here that: during the telescopic movement of the telescopic arm 1, the detection wire 204 at the upper end of the installed leakage detection component will be pulled and driven through the traction and pulling action, so that the detection wire 204 is released outward or retracted inward on the rectangular cover 8. During the process of releasing the detection wire 204 outward, the pulling action of the detection wire 204 and the supporting action of each group of support rollers 904 will pull the movable frame 902 to move toward the fixed frame 901. During the process of retracting the detection wire 204, the elastic component will push the movable frame 902 to reset. Therefore, during the process of retracting or releasing the detection wire 204, the movement of the movable frame 902 and the supporting action of multiple groups of support rollers 904 ensure that the detection wire 204 is always in a taut state.

[0052] Preferably, the elastic component includes a plurality of third sleeves 1001 fixed on the mobile frame 902, the third sleeves 1001 are slidably connected with a third slide bar 1002, one end of the third slide bar 1002 is fixed to one side of the fixed frame 901, and the outer side of the third sleeve 1001 is sleeved with a third spring 1003, and the two ends of the third spring 1003 are respectively set against the fixed frame 901 and the mobile frame 902;

[0053] It should be noted here that: the third sleeve 1001 and the third slide bar 1002 facilitate the telescopic connection between the auxiliary movable frame 902 and the fixed frame 901, and the third spring 1003 facilitates the squeezing and pushing of the movable frame 902 after the movement.

[0054] Preferably, a conveying assembly for assisting the conveying of the detection wire 204 is provided on one side of the rectangular cover 8, and the conveying assembly includes two sets of support frames 1101 fixed to the outside of the rectangular cover 8, and a conveying roller 1102 for conveying the detection wire 204 is rotatably connected to the support frame 1101;

[0055] It should be noted here that the detection wire 204 is passed through between the two groups of conveying rollers 1102 and abutted against each other, and the two groups of conveying rollers 1102 abut against the outer sides of the detection wire 204 respectively, so as to facilitate the stable conveying operation of the auxiliary detection wire 204.

[0056] In this scheme: an insulating arm leakage current detection device comprises the following steps:

[0057] During the use of the insulating arm leakage current detection device, each group of leakage detection components is installed on each group of telescopic arms 1 of the insulating arm. After the installation is completed, when the leakage detection component detects that there is leakage on the telescopic arm 1, the leakage current is detected by the transmission of the detection wire 204 and the power module is used. The leakage current is compared with the set value after analog-to-digital conversion by the controller. When the leakage current exceeds the set value, it is determined that there is leakage on the telescopic arm 1 at the corresponding position at this time, so as to realize automatic and accurate leakage detection operation, improve detection efficiency and ensure detection accuracy;

[0058] During the installation of the leakage detection component, the mounting seat 201 is pushed toward the specified position on the outside of the telescopic arm 1. During the pushing process, the lower end of the mounting cover 202 and the end of the detection head 203 are abutted against the outside of the telescopic arm 1. After the abutment, the mounting seat 201 is continued to be pushed and the telescopic arm 1 is abutted against the mounting cover 202, so that the mounting seat 201 is retracted toward the mounting cover 202. During the retracting movement of the mounting seat 201 toward the mounting cover 202, the transmission plate 604 is driven to move synchronously through the strip plate 603. During the movement of the transmission plate 604, the abutting transmission effect of the inclined groove 605 on the transmission plate 604 and the transmission pin 602 is driven to drive each group of transmission frames 601 and the rectangular plate 403 to move under force. During the movement, the second sleeve 501 and the second slide rod 502 on the connecting assembly slide and guide so that the rectangular plate 403 under force moves toward the outside of the mounting cover 202. During the movement, because the lower end of the mounting cover 202 abuts against the outside of the telescopic arm 1, the movement of the rectangular plate 403 causes the piston rod 402 to slide outward on the piston cylinder 401 under force. Through the sliding of the piston rod 402, the interior of the mounting cover 202 is compressed, so that the position where the mounting cover 202 and the outside of the telescopic arm 1 are detected is in a negative pressure state. Through the negative pressure, the sealing of the abutting position of the mounting cover 202 and the telescopic arm 1 is guaranteed, and the influence of external moisture molecules, dust and foreign matter on the abutting contact between the detection head 203 and the outside of the telescopic arm 1 is reduced, thereby further ensuring the accuracy of leakage detection.

[0059] In the process of leakage detection, with the use of the insulating arm, the telescopic arm 1 at different positions will perform telescopic movement. In the process of telescopic movement of the telescopic arm 1, the detection wire 204 at the upper end of the installed leakage detection component will be pulled and driven through the traction and pulling action, so that the detection wire 204 is released outward or retracted inward on the rectangular cover 8. In the process of releasing the detection wire 204 outward, the pulling action of the detection wire 204 and the supporting action of each group of support rollers 904 will pull the moving frame 902 to move toward the fixed frame 901. In the process of retracting the detection wire 204, the elastic component will push the moving frame 902 to reset. Therefore, in the process of retracting or releasing the detection wire 204, the movement of the moving frame 902 and the supporting action of multiple groups of support rollers 904 ensure that the detection wire 204 is always in a taut state, so as to prevent the detection wire 204 on the leakage detection component from being entangled with each other as the telescopic arm 1 is extended and retracted, and further facilitate a more stable leakage detection operation.

[0060] 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.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An insulating arm leakage current detection device, comprising: A power module and a plurality of groups of leakage detection components mounted on an insulating arm, wherein a controller is arranged inside the power module, and the insulating arm is composed of a plurality of groups of telescopic arms (1), wherein each group of the telescopic arms (1) is arranged in a mutually sleeved state, and each group of the leakage detection components is respectively mounted on each group of the telescopic arms (1); The leakage detection assembly comprises a mounting seat (201), the mounting seat (201) being detachably mounted on the outer side of the telescopic arm (1) by means of bolts, a mounting cover (202) being connected below the mounting seat (201) via a telescopic assembly, a detection head (203) being fixed on the mounting cover (202) for abutting against the outer side of the telescopic arm (1), the lower end of the detection head (203) being flush with the lower end of the mounting cover (202), a detection wire (204) being connected to the mounting seat (201), one end of the detection wire (204) being connected to the outer side of the telescopic arm (1), and a detection wire (204) being connected to the outer side of the telescopic arm (1). The ends of the detection head (203) are fixed, an accordion cover (205) for protecting the telescopic component is arranged between the mounting seat (201) and the mounting cover (202), a suction and pressure assembly for pumping and pressing the inside of the mounting cover (202) is arranged on the mounting cover (202), a sealing assembly for sealing against the outside of the telescopic arm (1) is arranged at the lower end of the mounting cover (202), and a rectangular cover (8) is fixed to the upper end of the mounting seat (201), and a storage assembly for assisting in storing the detection wire (204) is arranged on the rectangular cover (8).

2. The insulating arm leakage current detection device according to claim 1, characterized in that: The telescopic assembly comprises a plurality of first sleeves (301) fixed to the lower end of the mounting seat (201); a first slide bar (302) is slidably connected to the first sleeve (301); one end of the first slide bar (302) is fixed to the upper end of the mounting cover (202); a first spring (303) is sleeved on the outer side of the first sleeve (301); two ends of the first spring (303) are respectively connected to the mounting seat (201) and the mounting cover (202).

3. The insulating arm leakage current detection device according to claim 2, characterized in that: The pumping and pressing components are provided in multiple groups, and the multiple groups of pumping and pressing components are arranged in a state of an annular array on the mounting cover (202). The pumping and pressing components include a piston cylinder (401) which is fixed to the mounting cover (202), a piston rod (402) is slidably connected to the piston cylinder (401), a rectangular plate (403) is fixed to one end of the piston rod (402) located outside the mounting cover (202), a connecting component for connecting to the rectangular plate (403) is provided on the mounting cover (202), and a transmission component for transmitting the rectangular plate (403) is provided between the mounting seat (201) and the rectangular plate (403).

4. The insulating arm leakage current detection device according to claim 3, characterized in that: The transmission assembly comprises a transmission frame (601) fixed on a rectangular plate (403), a transmission pin (602) fixed on the transmission frame (601), a strip plate (603) fixed on the lower end of the mounting seat (201), a transmission plate (604) fixed on the strip plate (603), an inclined groove (605) formed on the transmission plate (604), and the transmission pin (602) is slidably connected to the inclined groove (605).

5. The insulating arm leakage current detection device according to claim 4, characterized in that: The connection assembly comprises a U-shaped frame (504) fixed to the outside of the mounting cover (202); a plurality of groups of second sleeves (501) are fixed to the rectangular plate (403); a second sliding rod (502) is slidably connected to the second sleeve (501); one end of the second sliding rod (502) is fixed to the U-shaped frame (504); and a second spring (503) is sleeved on the outside of each group of the second sleeves (501).

6. The insulating arm leakage current detection device according to claim 1, characterized in that: The sealing assembly comprises an annular groove (701) formed at the lower end of the mounting cover (202), and a sealing ring (702) for abutting against the outer side of the telescopic arm (1) is installed inside the annular groove (701).

7. The insulating arm leakage current detection device according to claim 5, characterized in that: The storage assembly comprises a fixed frame (901) and a movable frame (902) arranged inside the rectangular cover (8); the fixed frame (901) is fixed to the inside of the rectangular cover (8) via a plurality of fixed rods (903); an elastic component for assisting elastic connection is arranged between the fixed frame (901) and the movable frame (902); and a plurality of support rollers (904) for supporting the detection wire (204) are rotatably connected to the fixed frame (901) and the movable frame (902).

8. The insulating arm leakage current detection device according to claim 7, characterized in that: The elastic component comprises a plurality of third sleeves (1001) fixed on the movable frame (902), a third slide bar (1002) being slidably connected to the third sleeve (1001), one end of the third slide bar (1002) being fixed to one side of the fixed frame (901), a third spring (1003) being sleeved on the outer side of the third sleeve (1001), and two ends of the third spring (1003) being respectively disposed against the fixed frame (901) and the movable frame (902).

9. The insulating arm leakage current detection device according to claim 1, characterized in that: A conveying assembly for assisting the conveying of the detection wire (204) is provided on one side of the rectangular cover (8), and the conveying assembly comprises two groups of support frames (1101) fixed to the outside of the rectangular cover (8), and a conveying roller (1102) for conveying the detection wire (204) is rotatably connected to the support frame (1101).

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