An insulation arm leakage current detection device

Abstract

The application discloses an insulation arm leakage current detection device, relates to the technical field of electric power detection, and is a kind of insulation arm leakage current detection device, including power module and a plurality of leakage detection components installed on the insulation arm, the inside of the power module is provided with a controller, the insulation arm is composed of a plurality of telescopic arms, and each group of telescopic arms is arranged in a mutually sleeved state.The application realizes automatic and accurate leakage detection operation through the cooperation of the power module and the plurality of leakage detection components, improves the detection efficiency while ensuring the accuracy of the detection, and the leakage detection component is installed in the process, through the cooperation of the pumping and pressing assembly and the sealing assembly and other components, the sealing property of the installation cover and the abutting position of the telescopic arm is ensured, the influence of external moisture molecules, dust and foreign matters on the abutting contact between the detection head and the outer side of the telescopic arm is reduced, and the accuracy of the leakage detection is further ensured.

Description

Technical Field

[0001] This invention relates to the field of power detection technology, specifically to an insulated arm leakage current detection device. Background Technology

[0002] The insulated boom is the core component of an insulated bucket truck, primarily used to isolate high-voltage current and protect the safety of workers and equipment. However, due to environmental factors and prolonged use, the insulated boom may experience aging and wear, leading to a decline in its insulation performance and the generation of leakage current. If this leakage current exceeds a certain level, it may cause harm to workers and equipment.

[0003] Currently, leakage current detection of insulating arms mainly relies on manual periodic inspection and maintenance. This method is not only inefficient, but also difficult to guarantee accuracy. Therefore, we propose an insulating arm leakage current detection device. Summary of the Invention

[0004] The purpose of this invention is to provide an insulating arm leakage current detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an insulating arm leakage current detection device, comprising a power module and multiple sets of leakage current detection components installed on the insulating arm, wherein the power module is internally equipped with a controller, the insulating arm is composed of multiple sets of telescopic arms, the sets of telescopic arms are arranged in a nested manner, and the leakage current detection components of each set are respectively installed on each set of telescopic arms.

[0006] The leakage current detection component includes a mounting base, which is detachably mounted to the outside of the telescopic arm by bolts. A mounting cover is connected to the lower part of the mounting base via a telescopic assembly. A detection head is fixed on the mounting cover to abut against the outside of the telescopic arm, with the lower end of the detection head flush with the lower end of the mounting cover. A detection wire is connected to the mounting base, with one end of the detection wire fixed to the end of the detection head. A bellows cover for protecting the telescopic assembly is provided between the mounting base and the mounting cover. A pressure-squeezing assembly for pressing down the inside of the mounting cover is provided on the mounting cover. A sealing assembly for sealing against the outside of the telescopic arm is provided at the lower end of the mounting cover. A rectangular cover is fixed to the upper end of the mounting base, and a storage assembly for assisting in storing the detection wire is provided on the rectangular cover.

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

[0008] Preferably, the pressure-drawing assembly is provided in multiple sets, and the multiple sets of pressure-drawing assemblies are arranged in a circular array on the mounting cover. The pressure-drawing assembly includes a piston cylinder that is fixed to 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 assembly for connecting the rectangular plate is provided on the mounting cover. A transmission assembly for driving the rectangular plate is provided between the mounting base and the rectangular plate.

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

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

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

[0012] Preferably, the storage assembly includes a fixed frame and a movable frame disposed inside the rectangular cover. The fixed frame is fixed to the inside of the rectangular cover by multiple sets of fixed rods. An elastic component for assisting the elastic connection is provided between the fixed frame and the movable frame. Multiple sets of support rollers for supporting the detection wire are rotatably connected to the fixed frame and the movable frame.

[0013] Preferably, the elastic component includes multiple sets of third sleeves fixed to the movable frame, a third slide rod slidably connected to the third sleeve, one end of the third slide rod being fixed to one side of the fixed frame, a third spring being sleeved on the outside of the third sleeve, and the two ends of the third spring being respectively abutted against the fixed frame and the movable frame.

[0014] Preferably, a conveying assembly for assisting in the conveying of the detection wire is provided on one side of the rectangular cover. The conveying assembly includes two sets 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 beneficial effects of the present invention are:

[0016] This invention achieves automated and precise leakage current detection through the cooperation of a power module and multiple sets of leakage current detection components, improving detection efficiency while ensuring accuracy. During installation, the leakage current detection components, through the cooperation of components such as the pressure-drawing component and the sealing component, ensure the sealing of the mounting cover and the telescopic arm at the contact point, reducing the impact of external moisture molecules, dust, and foreign objects on the contact between the detection head and the outside of the telescopic arm, further ensuring the accuracy of leakage current detection. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the telescopic arm and leakage current detection component of the present invention;

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

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

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

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

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

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

[0025] Figure 9 This is a schematic diagram of the mounting cover structure of the present invention;

[0026] Figure 10 This is a schematic diagram of the pumping and pressing process of the present invention;

[0027] Figure 11 This is a schematic diagram of the leakage current detection process of the present invention.

[0028] In the diagram: 1. Telescopic arm; 201. Mounting base; 202. Mounting cover; 203. Detection head; 204. Detection wire; 205. Bellows cover; 301. First sleeve; 302. First slide rod; 303. First spring; 401. Piston cylinder; 402. Piston rod; 403. Rectangular plate; 501. Second sleeve; 502. Second slide rod; 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. Moving frame; 903. Fixed rod; 904. Support roller; 1001. Third sleeve; 1002. Third slide rod; 1003. Third spring; 1101. Support frame; 1102. Conveying roller. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1

[0031] Please see Figures 1-11 The figure shows an insulating arm leakage current detection device, which includes a power module and multiple sets of leakage current detection components installed on the insulating arm. The power module is equipped with a controller. The insulating arm is composed of multiple sets of telescopic arms 1, which are connected to each other. Each set of leakage current detection components is installed on each set 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 regulate the DC12V or DC24V power supply from the car chassis to DC24V to power the electrical components inside the leakage current detection device.

[0033] The display screen can show commonly used information such as leakage current, leakage location, calibration information, fault information, and communication status in real time;

[0034] The 4G module can upload the leakage current to a remote server in real time, which facilitates the information management and control of the insulating arm. When the leakage current detection device detects that the leakage current of the insulating arm exceeds the set value, the speaker will sound an alarm to remind the staff to repair the insulating 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 via CAN communication, which facilitates 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 insulating arm by comparing the set leakage current threshold with the real-time detection data.

[0037] The control communication module provides leakage current information of the insulating arm to the local or remote control terminal;

[0038] Controls the speaker's operation and triggers an alarm when the leakage current exceeds a set value; controls the display screen to show corresponding information based on the customer's operation.

[0039] The display screen, 4G module, speaker, CAN module, control module, and detection module are conventional technical means in leakage current detection and are considered prior art in this application, so they will not be elaborated on further.

[0040] The leakage current detection component includes a mounting base 201, which is detachably mounted to the outside of the telescopic arm 1 by bolts. A mounting cover 202 is connected to the bottom of the mounting base 201 via a telescopic component. A detection head 203 is fixed on the mounting cover 202 for abutting against the outside of the telescopic arm 1. The lower end of the detection head 203 is flush with the lower end of the mounting cover 202. A detection wire 204 is connected to the mounting base 201. One end of the detection wire 204 is fixed to the end of the detection head 203. A bellows cover 205 for protecting the telescopic component is provided between the mounting base 201 and the mounting cover 202. A pressure-squeezing component for pressing the inside of the mounting cover 202 is provided on the mounting cover 202. A sealing component for sealing against the outside of the telescopic arm 1 is provided at the lower end of the mounting cover 202. A rectangular cover 8 is fixed to the upper end of the mounting base 201. A storage component for assisting in storing the detection wire 204 is provided on the rectangular cover 8.

[0041] It should be noted that during the installation of the leakage current detection component, the cooperation of components such as the pressure-pressing component and the sealing component ensures the sealing of the position where the mounting cover 202 and the telescopic arm 1 meet, reducing the impact of external moisture molecules, dust and foreign objects on the contact between the detection head 203 and the outside of the telescopic arm 1, and further ensuring the accuracy of leakage current detection.

[0042] Preferably, the telescopic assembly includes multiple sets of first sleeves 301 fixed to the lower end of the mounting base 201. A first slide rod 302 is slidably connected to the first sleeve 301. One end of the first slide rod 302 is fixed to the upper end of the mounting cover 202. A first spring 303 is sleeved on the outside of the first sleeve 301. The two ends of the first spring 303 are respectively connected to the mounting base 201 and the mounting cover 202.

[0043] It should be noted here that: when the mounting base 201 is pushed toward the designated 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 abut against the outside of the telescopic arm 1. After abutting, through the continued pushing action of the mounting base 201 and the abutting and limiting action of the telescopic arm 1 on the mounting cover 202, the first slide rod 302 is subjected to force and slides on the first sleeve 301, and the first spring 303 is subjected to force and deforms to generate elastic force. Through the elastic force of the first spring 303, it is easy to push the mounting cover 202 to maintain abutting against the outside of the telescopic arm 1.

[0044] Preferably, multiple sets of pressure-drawing components are provided, and the multiple sets of pressure-drawing components are arranged in a ring array on the mounting cover 202. The pressure-drawing component includes a piston cylinder 401 that 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 the rectangular plate 403 is provided on the mounting cover 202. A transmission component for driving the rectangular plate 403 is provided between the mounting base 201 and the rectangular plate 403. The transmission component includes a transmission frame 601 fixed to the rectangular plate 403. A transmission pin 602 is fixed on the transmission frame 601. A strip plate 603 is fixed to the lower end of the mounting base 201. A transmission plate 604 is fixed on the strip plate 603. An inclined groove 605 is opened on the transmission plate 604. The transmission pin 602 is slidably connected to the inclined groove 605.

[0045] It should be noted that during the retraction movement of the mounting base 201 towards the mounting cover 202, the strip plate 603 drives the transmission plate 604 to move synchronously. During the movement of the transmission plate 604, the inclined groove 605 on the transmission plate 604 and the transmission pin 602 abut against each other, driving each set of transmission frames 601 and rectangular plate 403 to move under force. During the movement of the rectangular plate 403, the sliding guide action of the second sleeve 501 and the second slide rod 502 on the connecting assembly causes the rectangular plate 403 to move towards the outside of the mounting cover 202 after being subjected to force. 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 inside 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 second sleeves 501 fixed on the rectangular plate 403, a second slide rod 502 slidably connected to the second sleeve 501, one end of the second slide rod 502 being fixed to the U-shaped frame 504, and a second spring 503 being sleeved on the outside of each set of second sleeves 501.

[0047] It should be noted here that the second sleeve 501 and the second slide rod 502 on the U-shaped frame 504 facilitate the extension and retraction guidance of the rectangular plate 403 after being subjected to force, and the second spring 503 facilitates the reset 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 for abutting against the outside of the telescopic arm 1 is installed inside the annular groove 701.

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

[0050] Preferably, the storage component 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 by multiple sets of fixed rods 903. An elastic component for assisting the elastic connection is provided between the fixed frame 901 and the movable frame 902. Multiple sets of support 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 that during the telescopic arm 1's telescopic movement, the traction action pulls the detection wire 204 at the upper end of the installed leakage current detection component, causing the detection wire 204 to extend outward or retract inward on the rectangular cover 8. During the extension of the detection wire 204, the pulling action of the detection wire 204 and the support of the various support rollers 904 pull the moving frame 902 towards the fixed frame 901. During the retraction of the detection wire 204, the elastic component pushes the moving frame 902 to reset. Therefore, during the extension and retraction of the detection wire 204, the movement of the moving frame 902 and the support of the multiple support rollers 904 ensure that the detection wire 204 remains taut at all times.

[0052] Preferably, the elastic component includes multiple sets of third sleeves 1001 fixed on the movable frame 902, a third slide rod 1002 slidably connected on the third sleeve 1001, one end of the third slide rod 1002 being fixed to one side of the fixed frame 901, and a third spring 1003 being sleeved on the outside of the third sleeve 1001, with both ends of the third spring 1003 abutting against the fixed frame 901 and the movable frame 902 respectively;

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

[0054] Preferably, a conveying assembly for assisting in the conveying of the detection wire 204 is provided on one side of the rectangular cover 8. 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 between the two sets of conveying rollers 1102 and abuts against each other. The abutment of the two sets of conveying rollers 1102 against the outer side of the detection wire 204 facilitates the stable conveying operation of the detection wire 204.

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

[0057] During use, the leakage current detection device for insulating arms installs each set of leakage detection components on each set of telescopic arms 1 of the insulating arm. After installation, when the leakage detection component detects leakage on the telescopic arm 1, it uses the power module to detect the leakage current through the transmission of the detection wire 204. The leakage current is compared with the set value after being converted from analog to digital 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. This achieves automated and accurate leakage detection, improving detection efficiency while ensuring detection accuracy.

[0058] During installation, the leakage current detection component pushes the mounting base 201 towards a designated position on the outside of the telescopic arm 1. During this pushing, the lower end of the mounting cover 202 and the end of the detection head 203 abut against the outside of the telescopic arm 1. After abutting, the continued pushing of the mounting base 201 and the abutting and limiting action of the telescopic arm 1 against the mounting cover 202 cause the mounting base 201 to retract towards the mounting cover 202. During this retraction, the strip plate 603 drives the transmission plate 604 to move synchronously. During the movement of the transmission plate 604, the abutting transmission action between the inclined groove 605 on the transmission plate 604 and the transmission pin 602 drives the 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 the rectangular plate 403 after being subjected to force to move towards 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 inside 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 position where the mounting cover 202 and the telescopic arm 1 abut is ensured, reducing the influence of external moisture molecules, dust and foreign objects on the contact between the detection head 203 and the outside of the telescopic arm 1, and further ensuring the accuracy of leakage detection.

[0059] Furthermore, during the leakage current detection process, the telescopic arms 1 at different positions will extend and retract as the insulating arms are used. During the extension and retraction of the telescopic arms 1, the traction action will pull the detection wire 204 at the upper end of the installed leakage current detection component, causing the detection wire 204 to extend outward or retract inward on the rectangular cover 8. When the detection wire 204 extends outward, the pulling action of the detection wire 204 and the support action of each set of support rollers 904 will pull the moving frame 902 to move towards the fixed frame 901. When the detection wire 204 is retracted, the elastic component will push the moving frame 902 to reset. Therefore, during the extension and retraction of the detection wire 204, the movement of the moving frame 902 and the support action of multiple sets of support rollers 904 ensure that the detection wire 204 is always in a taut state, preventing the detection wire 204 on the leakage current detection component from becoming entangled with each other as the telescopic arms 1 extend and retract, further facilitating a more stable leakage current detection operation.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

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

Claims

1. An insulation arm leakage current detection device, comprising: a power module and a plurality of leakage detection components mounted on the insulation arm, the power module is internally provided with a controller, the insulation arm is composed of a plurality 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 mounted on each group of telescopic arms (1); the leakage detection component comprises a mounting seat (201), the mounting seat (201) is detachably mounted on the outer side of the telescopic arm (1) by means of bolts, a mounting cover (202) is connected to the lower side of the mounting seat (201) through a telescopic component, a detection head (203) for abutting against the outer side of the telescopic arm (1) is fixed on the mounting cover (202), the lower end of the detection head (203) is flush with the lower end of the mounting cover (202), a detection lead (204) is connected to the mounting seat (201), one end of the detection lead (204) is fixed to the end of the detection head (203), an organ case (205) for protecting the telescopic component is arranged between the mounting seat (201) and the mounting cover (202), a pumping component for pumping the inside of the mounting cover (202) is arranged on the mounting cover (202), 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), a rectangular cover (8) is fixed on the upper end of the mounting seat (201), and a storage component for assisting storage of the detection lead (204) is arranged on the rectangular cover (8).

2. The insulated arm leakage current detection device of claim 1, wherein: the telescopic component comprises a plurality of first sleeves (301) fixed to the lower end of the mounting seat (201), a first sliding rod (302) is slidably connected to the first sleeve (301), one end of the first sliding rod (302) is fixed to the upper end of the mounting cover (202), a first spring (303) is arranged outside the first sleeve (301), and both ends of the first spring (303) are connected to the mounting seat (201) and the mounting cover (202).

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

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

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

6. The insulated arm leakage current detection device of claim 1, wherein: The sealing assembly comprises an annular groove (701) formed on the lower end of the mounting cover (202), and a sealing ring (702) installed in the annular groove (701) and used for abutting against the outer side of the telescopic arm (1).

7. The insulated arm leakage current detection device of claim 5, wherein: The storage assembly comprises a fixed frame (901) and a moving frame (902) arranged in the rectangular cover (8), the fixed frame (901) is fixed in the rectangular cover (8) through a plurality of fixed rods (903), a spring assembly for auxiliary elastic connection is arranged between the fixed frame (901) and the moving 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 moving frame (902).

8. The insulated arm leakage current detection device of claim 7, wherein: The spring assembly comprises a plurality of third sleeves (1001) fixed on the moving frame (902), a third sliding rod (1002) slidably connected to the third sleeve (1001), and a third spring (1003) sleeved on the outer side of the third sleeve (1001), wherein one end of the third sliding rod (1002) is fixed to one side of the fixed frame (901), and the other ends of the third spring (1003) are abutted against the fixed frame (901) and the moving frame (902), respectively.

9. The insulated arm leakage current detection device of claim 1, wherein: One side of the rectangular cover (8) is provided with a conveying assembly for assisting in conveying the detection wire (204), and the conveying assembly comprises two groups of support frames (1101) fixed on the outer side of the rectangular cover (8), and conveying rollers (1102) rotatably connected to the support frames (1101) and used for conveying the detection wire (204).

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