Plug-in type multi-range electroscope and tool box

Abstract

The invention discloses a plug-in type multi-range electroscope which comprises an electroscope body and an electroscope plug-in. The electroscope body comprises an electroscope contact, an electroscope plug-in mounting seat and a telescopic rod which are sequentially connected, one side of the electroscope plug-in mounting seat is provided with an electroscope clamping groove, the upper side and the lower side of the electroscope plug-in mounting seat are respectively provided with jacks, conducting strips are symmetrically arranged on the inner sides of the two jacks respectively, and elastic pieces are arranged between the other ends of the two conducting strips and the corresponding jacks respectively; the electricity testing contact is connected with one conducting strip through a wire, and the other conducting strip is connected with the telescopic rod through a wire. The electroscope plug-in is matched with the electroscope clamping groove and comprises a plug-in body, a circuit board is arranged on the inner side of the plug-in body, plugs matched with the two jacks are arranged on one side of the plug-in body, a warning device connected with the circuit board is arranged on the other side of the plug-in body, and conductive pressing pieces connected with the circuit board through lines are arranged on the corresponding sides of the two plugs respectively. The problems that an existing electroscope telescopic rod is inconvenient to operate, the electricity testing voltage grade is single, and resource waste is caused by overall scrapping can be solved.

Description

Technical Field

[0001] The present invention relates to the field of power system live-line verification operations, and particularly to a plug-in multi-range live-line detector and a toolbox. Background Art

[0002] According to the requirements of the substation safety regulations in the power system, live-line verification is required before live equipment is transferred to maintenance. Currently, the commonly used live-line detectors are divided into split-type and integrated live-line detectors in terms of usage functions. The split-type live-line detector only meets the detection requirements of live equipment of a single voltage level. When operating on equipment of different voltage levels, workers often need to carry multiple split-type live-line detectors of different voltage levels, which is time-consuming and laborious, and there is a risk of taking the wrong one during operation. The integrated live-line detector can perform live-line verification on different voltage levels, but generally uses an integrated structure and cannot be disassembled and assembled. With the frequent use of the live-line detector, the internal electronic components will age, and problems such as malfunction will occur in actual use, increasing the operation risk and causing personal injury. The insulating rods of live-line detectors are generally divided into spliced-type and telescopic-type in terms of structure. The spliced-type live-line detector is inconvenient to carry and use, and disassembling it before use will greatly reduce the operation efficiency. The telescopic live-line detector often has problems such as retracting, slipping, jamming, and locking during use, reducing the work efficiency and prone to misoperation.

[0003] Therefore, there is an urgent need for a live-line detector with simple operation and assemblability to solve the above problems. Summary of the Invention

[0004] Aiming at the technical defects in the above background art, the present invention provides a plug-in multi-range live-line detector and a toolbox to solve the problems of inconvenient operation of the telescopic rod of the live-line detector in the prior art, single live-line verification voltage level, and waste of resources caused by overall scrapping.

[0005] In order to achieve the above invention purpose, the present invention provides the following technical solutions:

[0006] According to one aspect of the present invention, a plug-in multi-range electroscope is provided, which includes an electroscope body and an electroscope plug-in; the electroscope body includes an electroscope contact, an electroscope plug-in mounting seat, and a telescopic rod connected in sequence. One side of the electroscope plug-in mounting seat is provided with an electroscope card slot in a "concave" shape. The upper and lower sides of the bottom of the electroscope card slot are respectively set as sockets. On the inner sides of the two sockets, conductive sheets are symmetrically and movably arranged obliquely towards the opening of the electroscope card slot. Elastic members are respectively arranged between the other ends of the two conductive sheets and the corresponding sockets. The electroscope contact is connected to one of the conductive sheets through a wire, and the other conductive sheet is connected to the top of the telescopic rod through a wire; the electroscope plug-in is adapted to the electroscope card slot, and includes a plug-in body with a circuit board inside. One side of the plug-in body is provided with plugs corresponding to and adapted to the two sockets, and the other side is provided with a warning device connected to the circuit board. On the surfaces of the two plugs corresponding to each other, voltage conducting sheets connected to the circuit board through lines are respectively arranged; wherein: during electroscope inspection, the electroscope plug-in is fixed in the electroscope card slot through the two plugs and the two sockets, the conductive sheets are respectively in contact with the corresponding voltage conducting sheets, the electroscope contact is in contact with the live body, the current flows from the electroscope contact through the wire, the conductive sheet, the voltage conducting sheet to the circuit board, and after being detected by the circuit board, a warning message is sent through the warning device.

[0007] Further, a hand-held ring is arranged in the middle of one side of the plug-in body where the warning device is located, and the warning device includes a buzzer and a warning lamp.

[0008] Further, the elastic member is a spring.

[0009] Further, a button battery electrically connected to the circuit board is detachably arranged on one side of the plug-in body where the warning device is located.

[0010] Further, a self-check button electrically connected to the circuit board is arranged on one side of the plug-in body where the warning device is located.

[0011] Further, there are multiple electroscope plug-ins, and the circuit boards inside each electroscope plug-in are respectively used to detect live equipment with different voltage levels.

[0012] Further, there are four electroscope plug-ins, and the voltage levels detected by the circuit boards in each electroscope plug-in are 10 kV, 35 kV, 110 kV, and 220 kV respectively.

[0013] Further, the telescopic rod includes a plurality of hollow rods with the same length and gradually decreasing outer diameters. The hollow rods are sleeved and slidably connected in sequence. An insertion pin assembly is provided at the bottom of the front hollow rod among adjacent two hollow rods, and an insertion pin fixing assembly is provided at the top of the rear hollow rod. The insertion pin assembly includes a fixed insertion pin fixedly arranged at the bottom of the front hollow rod. Sleeves are provided on both sides of the fixed insertion pin, and transverse springs are respectively arranged. The other ends of the two transverse springs are respectively provided with movable insertion pins. The other end of the movable insertion pin abuts against the inner wall of the rear hollow rod under the elastic force of the transverse spring. Pressure plates are respectively arranged on both sides of the fixed insertion pin at the top of the front hollow rod. The insertion pin fixing assembly includes a longitudinal spring fixedly arranged at the top of the rear hollow rod and having an inner diameter larger than the outer diameter of the front hollow rod, and pin holes symmetrically opened at the top of the rear hollow rod at the position of the longitudinal spring and respectively used in cooperation with the two movable insertion pins.

[0014] Further, the movable insertion pin is cylindrical, and its top is provided with an arc surface. The hollow rod is made of an insulating material, and a safety length warning line is arranged on the outside.

[0015] According to another aspect of the present invention, a toolbox is provided. An electric appliance body placement groove and an electric appliance plug placement groove adapted to the electric appliance body and the electric appliance plug in the above-mentioned plug-in multi-range electric tester are respectively arranged in the toolbox. The electric appliance body and the electric appliance plug are respectively placed in the corresponding placement grooves.

[0016] Compared with the prior art, the plug-in multi-range electric tester and the toolbox of the present invention have the following beneficial effects:

[0017] (1) The present invention designs the installation method of the functional components of the internal structure of the electric tester. By adopting an assembled and disassembled plug-in structure, it can realize the operation of testing electricity for devices with multiple different voltage levels. It can also reduce the overall scrapping cost of the electric tester by replacing the electric tester plug, which is more conducive to economy and environmental protection. When facing devices with different voltage levels, during use, only the corresponding electric tester plug needs to be inserted into the card slot of the electric tester to meet the requirements of testing electricity for different voltage levels.

[0018] (2) The present invention designs the telescopic and fixing structures of the telescopic rod. By adopting a simple insertion pin structure, during operation and use, the movable insertion pin passes through the matching pin hole to fix the length of the insulating hollow rod, and the corresponding compression of the longitudinal spring achieves the effect of further locking the telescopic rod, avoiding phenomena such as back-drawing, slipping, jamming, and locking often occurring in the conventional telescopic electric tester during use, and improving the work efficiency.

[0019] (3) Based on the design of the plug-in structure and telescopic rod structure of the electroscope, before operation, double confirmation of the electroscope equipment level and telescopic length can be carried out. When assembling the electroscope plug-in, it is necessary to confirm the voltage level of the corresponding electroscope plug-in before assembling. When assembling the telescopic rod, the movable pin is fixed to the required safe length of the telescopic rod, effectively reducing the risk of misoperation and reducing the harm to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a schematic structural diagram of a plug-in multi-range electroscope of the present invention;

[0021] Figure 2 FIG. is a schematic partial structural diagram of a plug-in multi-range electroscope of the present invention;

[0022] Figure 3 FIG. is a schematic structural diagram of an electroscope plug-in in a plug-in multi-range electroscope of the present invention;

[0023] Figure 4 FIG. is a schematic diagram of the fixing of the plug pin of adjacent hollow rods in the present invention (the movable plug pin is not ejected);

[0024] Figure 5 FIG. is a schematic diagram of the fixing of the plug pin of adjacent hollow rods in the present invention (the movable plug pin is ejected);

[0025] Figure 6 FIG. is a schematic diagram of a tool body in the present invention;

[0026] In the figure: 1, electroscope contact; 2, electroscope plug-in mounting seat; 2-1, electroscope card slot; 2-2, wire; 2-3, conductive sheet; 2-4, elastic member; 2-5, socket; 3, electroscope plug-in; 3-1, plug-in body; 3-2, plug; 3-3, circuit board; 3-4, buzzer; 3-5, hand grip ring; 3-6, warning light; 3-7, button battery; 3-8, voltage conducting sheet; 3-9, self-check button; 4, telescopic rod; 4-1, pin hole; 4-3, movable plug pin; 4-4, transverse spring; 4-5, fixed plug pin; 4-6, longitudinal spring; 4-7, pressing piece; 4-8, hollow rod; 4-a, plug pin assembly; 4-b, plug pin fixing assembly; 5, tool box. DETAILED DESCRIPTION OF THE INVENTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art belonging to the field of this disclosure. The terms such as "upper", "lower", "left", "right", "front", "back", "inside", "outside", etc. used in the specification and claims of this patent application of the present disclosure are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly; the terms such as "connected" or "coupled" do not limit to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Where the present invention is not described in detail, it is common knowledge for those skilled in the art of this technology field.

[0028] Embodiment 1:

[0029] Please refer to Figures 1-5 , a plug-in multi-range electroscope of the present invention includes an electroscope body and an electroscope plug 3.

[0030] The electroscope body includes an electroscope contact 1, an electroscope plug mounting seat 2, and a telescopic rod 4 that are connected in sequence. The electroscope contact 1 is made of a metal material and is in a straight rod shape, or the top can be set in a hook shape, etc., for contacting the equipment to be tested for obtaining current. The electroscope plug mounting seat 2 is used for mounting electroscope plugs 3 with different ranges. The electroscope plug 3 is used for obtaining current from the electroscope contact 1 for detection and sending out a warning signal according to the detection result. The telescopic rod 4 can be telescoped according to the electroscope requirement of the equipment to be tested to adjust the length to ensure the safety of the operator.

[0031] On one side of the electroscope plug mounting seat 2, there is an electroscope card slot 2-1 in a "concave" shape for mounting the electroscope plug 3. The upper and lower sides of the bottom of the electroscope card slot 2-1 are respectively provided with sockets 2-5. On the inner sides of the two sockets 2-5, conductive sheets 2-3 are symmetrically and movably arranged obliquely towards the opening of the electroscope card slot 2-1. Between the other ends of the two conductive sheets 2-3 and the corresponding sockets 2-5, elastic members 2-4 are provided. The elastic members 2-4 are preferably springs or similar elastic components. The electroscope contact 1 is connected to one of the conductive sheets 2-3 through a wire 2-2, and the other conductive sheet 2-3 is connected to the top of the telescopic rod 4 through a connection with the wire 2-2.

[0032] The electroscope plug-in 3 is also in a "concave" shape and is adapted to the electroscope card slot 2-1. It includes a plug-in body 3-1 with a circuit board 3-3 on the inner side. The circuit board 3-3 is mainly composed of a sampling circuit and a control circuit. The adjustable capacitor in the sampling circuit collects and regulates the input electrical signal. The control circuit operates accordingly based on the output signal of the sampling circuit, driving the buzzer and warning light to emit warning information. On one side of the plug-in body 3-1, there are plugs 3-2 corresponding to and adapted to two sockets 2-5. On the other side, there is a warning device connected to the circuit board 3-3. The warning device is used to output a warning signal, such as an acoustic and optical signal, according to the electroscope result of the circuit board 3-3. On the surfaces of the opposite sides of the two plugs 3-2, there are voltage-conducting sheets 3-8 connected to the circuit board 3-3 through wires.

[0033] As a preferred embodiment, on the side of the plug-in body 3-1 where the warning device is located, there is a self-check button 3-9 electrically connected to the circuit board 3-3. By pressing the self-check button 3-9, the warning device is driven to emit warning information to determine whether the electroscope plug-in 3 is qualified, improving the reliability of the electroscope work.

[0034] As a preferred embodiment, the warning device includes a buzzer 3-4 and a warning light 3-6. After the circuit board 3-3 is detected and a result is obtained, acoustic and optical signals are emitted through the buzzer 3-4 and the warning light 3-6. Further, the warning light 3-6 can preferably be a multi-color indicator light. For example, before detection, it shows a green light, and when it is detected that the device to be electroscoped is charged, it shows a red light.

[0035] As a preferred embodiment, on the side of the plug-in body 3-1 where the warning device is located, there is a button battery 3-7 that can be disassembled and assembled by itself and is connected to the circuit board 3-3, which is used to supply power to the circuit board 3-3, its various modules, the buzzer 3-4, the warning light 3-6, etc. during the self-check process.

[0036] When using this plug-in multi-range electrical detector to check the power of equipment, self-checking should be carried out first. Press the self-check button 3-9 on the electrical detector plug-in 3. The button battery 3-7 is used as the power supply to simulate the electrical signal flowing to the circuit board 3-3 when the electrical contact 1 touches the energized equipment during the power checking process. Whether the warning device emits a warning message is used to determine whether the electrical detector plug-in 3 can work normally. When officially checking the power, the electrical detector plug-in 3 is fixed in the electrical detector slot 2-1 through two plugs 3-2 and two sockets 2-5. The conductive sheets 2-3 are respectively in contact with the corresponding voltage conducting sheets 3-8. The electrical contact 1 contacts the energized body, and the current signal flows from the electrical contact 1 through the wire 2-2, the conductive sheet 2-3, the voltage conducting sheet 3-8 to the circuit board 3-3, and then flows to another voltage conducting sheet 3-8 and the conductive sheet 2-3 after passing through the circuit board 3-3, and then flows through the wire 2-2 to the telescopic rod 4 to form a loop with the human body and the ground. After being detected by the circuit board 3-3, the warning device is then driven to emit a warning message. In this embodiment, the electrical detector slot 2-1 is an integral block structure, which is detachably connected to the electrical detector plug-in 3. After long-term use, for the aging components on the upper part of the plug-in, the corresponding new electrical detector plug-in can be replaced, avoiding the overall scrapping of the electrical detector.

[0037] To facilitate the installation of the electrical detector plug-in 3 in the electrical detector slot 2-1, a hand grip ring 3-5 is provided in the middle on one side of the plug-in body 3-1 where the warning device is located.

[0038] In this embodiment, to achieve multi-range power checking operations, there are multiple electrical detector plug-ins 3 with the same external dimensions. The circuit boards 3-3 inside each electrical detector plug-in 3 are respectively used to detect energized equipment with different voltage levels. Further, the electrical detector plug-ins 3 are preferably four, and the voltage levels detected by the circuit boards 3-3 in each of the electrical detector plug-ins 3 are 10 kV, 35 kV, 110 kV, and 220 kV respectively, meeting the power checking operations for various voltage levels.

[0039] For the convenience of the telescopic movement and fixation of the telescopic rod 4, the telescopic rod 4 includes a plurality of circular hollow rods 4-8 with the same length and gradually decreasing outer diameters. The hollow rods 4-8 are sleeved and slidably connected in sequence. Among two adjacent hollow rods 4-8, a pin assembly 4-a is arranged at the bottom of the front hollow rod 4-8, and a pin fixing assembly 4-b is arranged at the top of the rear hollow rod 4-8; the pin assembly 4-a includes a fixed pin 4-5 fixedly arranged at the bottom of the front hollow rod 4-8. Sleeves are formed on both sides of the fixed pin 4-5 and transverse springs 4-4 are respectively arranged. The other ends of the two transverse springs 4-4 are respectively provided with movable pins 4-3. The other ends of the movable pins 4-3 are in contact with the inner wall of the rear hollow rod 4-8 under the elastic force of the transverse springs 4-4. Pressing pieces 4-7 are respectively arranged on both sides of the top of the fixed pin 4-5 and located on both sides of the front hollow rod 4-8; the pin fixing assembly 4-b includes a longitudinal spring 4-6 fixedly arranged at the top of the rear hollow rod 4-8 and having an inner diameter larger than the outer diameter of the front hollow rod 4-8, and pin holes 4-1 symmetrically formed at the top of the rear hollow rod 4-8 at the position of the longitudinal spring 4-6 and respectively used in cooperation with the two movable pins 4-3. As shown in Figure 4 and Figure 5 shown, when the adjacent hollow rods 4-8 are stretched in opposite directions, the pressing pieces 4-7 on both sides of the fixed pin 4-5 squeeze the longitudinal spring 4-6. When the fixed pin 4-5 reaches the position of the pin hole 4-1, under the action of the transverse spring 4-4, the two movable pins 4-3 respectively pop out of the two corresponding pin holes 4-1, locking the two adjacent hollow rods 4-8 so that they do not slide. In this way, the length of the telescopic rod 4 can be adjusted as needed to meet the distance requirements during live-line voltage detection. Further, according to the live-line voltage detection distance requirements for each voltage level, safety warning lines can be marked on the outer sides of the hollow rods 4-8. When the live-line voltage detector plug-in 3 corresponding to the voltage level is inserted, the telescopic rod 4 is extended to the corresponding distance and corresponds to the corresponding safety warning line. Before use, double confirmation can be carried out to ensure safety.

[0040] When contracting each hollow rod, only need to press the contact part of the movable pin 4-3 passing through the pin holes 4-1 at both ends. Under the pushing force of the longitudinal spring 4-6, the inner hollow rod automatically slides downwards to achieve convenient contraction.

[0041] As a preferred embodiment, the movable pin 4-3 is cylindrical and its top is set as an arc surface; the hollow rod 4-8 is made of insulating material.

[0042] Embodiment 2:

[0043] Please refer to Figures 1-6, the present invention provides a toolbox. Inside the toolbox 5, there are respectively provided an electroscope body placement groove and an electroscope plug placement groove that are adapted to the electroscope body and each electroscope plug 3 in the plug-in multi-range electroscope in Embodiment 1. The electroscope body and each electroscope plug 3 are respectively placed in the corresponding placement grooves.

Claims

1. A plug-in multi-range electroscope, characterized in that: The invention comprises an electroscope body and an electroscope plug-in (3); the electroscope body comprises an electroscope contact (1), an electroscope plug-in mounting seat (2) and a telescopic rod (4) which are connected in sequence; a "concave"-shaped electroscope card slot (2-1) is provided on one side of the electroscope plug-in mounting seat (2); the bottom and upper sides of the electroscope card slot (2-1) are respectively provided with sockets (2-5); conductive sheets (2-3) are symmetrically and movably arranged on the inner sides of the two sockets (2-5) respectively opening toward the electroscope card slot (2-1); elastic members (2-4) are respectively arranged between the other ends of the two conductive sheets (2-3) and the corresponding sockets (2-5); the electroscope contact (1) is connected to one of the conductive sheets (2-3) through a wire (2-2); the other conductive sheet (2-3) is connected to the top of the telescopic rod (4) through a wire (2-2); the electroscope plug-in (3) is adapted to the electroscope card slot (2-1); the inner side has a conductive sheet (2-3) and a conductive sheet (2-3) which is symmetrically arranged with a conductive sheet (2-3) and a conductive sheet (2-3) which is symmetrically arranged with a conductive sheet (2-5) and a conductive sheet (2-3) which is symmetrically arranged with a conductive sheet (2-3) and a conductive sheet (2-3) which is symmetrically arranged with a conductive sheet (2-4) and a conductive sheet (2-3) which is symmetrically arranged with a conductive sheet (2-3 ... A plug-in body (3-1) having a circuit board (3-3), wherein one side of the plug-in body (3-1) is provided with a plug (3-2) corresponding to and adapted to the two sockets (2-5), and the other side is provided with a warning device connected to the circuit board (3-3), and the surfaces of the two plugs (3-2) on the corresponding sides are respectively provided with conductive plates (3-8) connected to the circuit board (3-3) through lines; wherein: during electricity testing, the tester plug-in (3) is fixed in the tester card slot (2-1) through the two plugs (3-2) and the two sockets (2-5), the conductive plates (2-3) are respectively in contact with the corresponding conductive plates (3-8), and are in contact with the charged body through the tester contact (1), and the current flows from the tester contact (1) through the wire (2-2), the conductive plate (2-3), the conductive plate (3-8) to the circuit board (3-3), and after being detected by the circuit board (3-3), a warning message is issued through the warning device.

2. A plug-in multi-range electroscope according to claim 1, characterized in that: The plug-in body (3-1) is provided with a grip ring (3-5) in the middle of one side of the warning device, and the warning device comprises a buzzer (3-4) and a warning light (3-6).

3. The plug-in multi-range electroscope according to claim 1, characterized in that: The elastic member (2-4) is a spring.

4. The plug-in multi-range electroscope according to claim 1, characterized in that: The plug-in body (3-1) is provided with a button battery (3-7) which is electrically connected to the circuit board (3-3) on one side of the warning device.

5. The plug-in multi-range electroscope according to claim 1, characterized in that: The plug-in body (3-1) is provided with a self-test button (3-9) located on one side of the warning device and electrically connected to the circuit board (3-3).

6. The plug-in multi-range electroscope according to claim 1, characterized in that: There are a plurality of electroscope plug-ins (3), and the circuit board (3-3) inside each electroscope plug-in (3) is used to detect live devices of different voltage levels.

7. The plug-in multi-range electroscope according to claim 6, characterized in that: There are four electroscope plug-ins (3), and the voltage levels detected by the circuit board (3-3) in each of the electroscope plug-ins (3) are 10 kV, 35 kV, 110 kV and 220 kV respectively.

8. A plug-in multi-range electroscope according to any one of claims 1 to 7, characterized in that: The telescopic rod (4) comprises a plurality of hollow rods (4-8) of the same length and with successively smaller outer diameters, the hollow rods (4-8) being sleeved in sequence and slidably connected, a latch assembly (4-a) being arranged at the bottom of the front hollow rod (4-8) of two adjacent hollow rods (4-8), and a latch fixing assembly (4-b) being arranged at the top of the rear hollow rod (4-8); the latch assembly (4-a) comprises a fixed latch (4-5) fixedly arranged at the bottom of the front hollow rod (4-8), sleeves being provided on both sides of the fixed latch (4-5) and respectively provided with transverse springs (4-4), and the other ends of the two transverse springs (4-4) are respectively provided with movable latches (4-5). -3), the other end of the movable latch (4-3) abuts against the inner wall of the rear hollow rod (4-8) under the elastic force of the transverse spring (4-4), and the top of the fixed latch (4-5) is located on both sides of the front hollow rod (4-8) and is provided with pressing plates (4-7); the latch fixing assembly (4-b) comprises a longitudinal spring (4-6) fixedly arranged on the top of the rear hollow rod (4-8) and having an inner diameter larger than the outer diameter of the front hollow rod (4-8), and pin holes (4-1) symmetrically arranged on the top of the rear hollow rod (4-8) and located at the longitudinal spring (4-6) and respectively used in conjunction with the two movable latches (4-3).

9. The plug-in multi-range electroscope according to claim 8, characterized in that: The movable bolt (4-3) is cylindrical, and its top is arranged as an arc surface; the hollow rod (4-8) is made of an insulating material, and a safety length warning line is arranged on the outside.

10. A tool box, characterized in that: The tool box (5) is provided with a electroscope body placement slot and an electroscope plug-in placement slot respectively matched with the electroscope body and the electroscope plug-in (3) in the plug-in type multi-range electroscope according to any one of claims 1 to 9, and the electroscope body and the electroscope plug-in (3) are respectively placed in the corresponding placement slots.

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