Electricity testing device

Abstract

The invention belongs to the technical field of electroscopes, and discloses an electricity testing device. The electricity testing device comprises a shell, a conducting rod, two electricity testing rods, a driving mechanism and an electricity testing mechanism, the conducting rod is arranged in the shell, a sliding groove is formed in one end of the conducting rod in the radial direction of the conducting rod, the two electricity testing rods are arranged in the sliding groove in a sliding mode, at least part of the electricity testing rods stretch out of the shell, and the driving mechanism comprises two driving assemblies. The two driving assemblies are arranged in the shell, the output end of each driving assembly is connected with one electricity testing rod, the two driving assemblies are used for driving the two electricity testing rods to be close to or far away from each other in the radial direction of the conducting rod so as to clamp or loosen a to-be-tested electric wire, and the electricity testing mechanism is arranged in the shell. The end, away from the two electricity testing rods, of the conductive rod is connected with the electricity testing mechanism, and the electricity testing mechanism is used for detecting whether the to-be-tested wire clamped by the two electricity testing rods is electrified or not, so that the operation process is simplified, the clamping force is more uniform, the clamping stability is improved, and the accuracy and reliability of the electricity testing result are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of electroscopes, in particular to an electroscope device. Background Art

[0002] An electrical test device is an instrument for detecting whether an object is charged. Traditional electrical test devices include a metal ball and two metal foils. The metal ball is connected to the two metal foils. When a charged object contacts the metal ball of the electrical test device, the charge is transferred to the metal foils, causing the two metal foils to carry the same charge, thereby repelling each other and opening a certain angle, thereby determining whether the object is charged. However, when using a direct contact electrical test method, the continuity of the electrical test cannot be guaranteed when the staff has hand tremors, and it is difficult to conduct a stable electrical test for a long time.

[0003] At present, in order to improve the stability of the electrical testing device during long-term electrical testing, a clamp is provided on the electrical testing device. When in use, the clamp needs to be opened manually, the wire to be tested is placed in the clamp, and then clamped. During the operation, the clamping force of the clamp is insufficient or uneven, and the wire to be tested will become loose or shifted during the electrical testing process, thereby affecting the electrical testing result.

[0004] Therefore, there is an urgent need for an electrical testing device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an electrical testing device that can simplify the operating process, improve the convenience of electrical testing operations, improve the stability of the electrical testing device in clamping the wire to be tested for a long time, improve the efficiency of electrical testing, and improve the accuracy of electrical testing results.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Electrical testing device, comprising:

[0008] case;

[0009] A conductive rod is arranged inside the housing, and a sliding groove is provided at one end of the conductive rod along the radial direction of the conductive rod;

[0010] Two test rods, both of which are slidably disposed in the slide slot, and at least a portion of the test rods extends out of the housing;

[0011] The driving mechanism includes two driving components, both of which are arranged in the housing, and the output end of each driving component is connected to one of the test rods, and the two driving components are configured to drive the two test rods to move closer to or farther from each other along the radial direction of the conductive rod to clamp or release the wire to be tested;

[0012] An electric test mechanism is arranged inside the shell. One end of the conductive rod away from the two electric test rods is connected to the electric test mechanism. The electric test mechanism is configured to detect whether the wire to be tested clamped by the two electric test rods is energized.

[0013] Preferably, the test rod includes a clamping section and an extension section, the clamping section is located outside the shell, and the extension section is located inside the shell, one end of the extension section is connected to the clamping section, and the other end is connected to the output end of the drive assembly, and a limiting protrusion is provided at one end of the extension section away from the clamping section, and the limiting protrusion is slidably set in the slide groove along the radial direction of the conductive rod.

[0014] Preferably, a limit platform is provided at the connection between the clamping section and the extending section, and the limit platform can abut against the end surface of the shell.

[0015] Preferably, the radial width of the clamping section gradually decreases from a direction close to the extending section toward a direction away from the extending section.

[0016] Preferably, the clamping section comprises a clamping surface, and the two clamping surfaces of the two clamping sections are both planes, and the two clamping surfaces are parallel to each other.

[0017] Preferably, the drive assembly comprises:

[0018] A driving member, the driving member is disposed in the housing;

[0019] A connecting member, the connecting member is slidably disposed on the inner wall of the housing, one end of the connecting member is connected to the output end of the driving member, and the driving member can drive the connecting member to reciprocate relative to the housing;

[0020] A push rod, the other end of the connecting piece is rotatably connected to the first end of the push rod, and the second end of the push rod is rotatably connected to the electrical testing rod.

[0021] Preferably, the electricity testing mechanism comprises a foil electricity testing assembly and / or a multimeter electricity testing assembly, and the foil electricity testing assembly and / or the multimeter electricity testing assembly are configured to detect whether the wire to be tested clamped by the two electricity testing rods is energized.

[0022] Preferably, the foil electroscope assembly comprises a resistor and a foil electroscope, one end of the resistor is connected to the conductive rod, and the other end of the resistor is connected to the foil electroscope.

[0023] Preferably, the multimeter electricity testing assembly comprises a wire group and a multimeter, one end of the wire group is electrically connected to the conductive rod, and the other end of the wire group is electrically connected to the multimeter.

[0024] Preferably, the electrical testing device further comprises a hand-held tube, which is sleeved on the shell and is made of insulating material.

[0025] Beneficial effects:

[0026] The electrical testing device provided by the present invention, when in use, uses two driving components to move the two electrical testing rods away from each other, and the electrical testing device is moved close to the wire to be tested. After the wire to be tested is located at a suitable position between the two electrical testing rods, the two driving components drive the two electrical testing rods close to each other to clamp the wire to be tested. The current in the wire to be tested will be transmitted to the electrical testing mechanism through the electrical testing rods and the conductive rods, and the electrical testing mechanism will detect the incoming current. Compared with the traditional method of relying on manual clamping, the electrical testing device can simplify the operating process, make the clamping force more uniform, and greatly improve the stability of clamping, thereby ensuring the accuracy and reliability of the electrical testing results. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the structure of an electrical testing device provided by an embodiment of the present invention;

[0028] Figure 2 is a cross-sectional view of a conductive rod provided by an embodiment of the present invention;

[0029] Figure 3 It is a cross-sectional view of the electrical testing mechanism provided in an embodiment of the present invention.

[0030] In the figure:

[0031] 1. Shell; 11. Extension tube; 111. Opening; 12. Connecting tube; 121. Accommodating chamber; 13. First shell; 14. Second shell; 15. Partition;

[0032] 2. Conductive rod; 21. Slide slot; 22. Mounting slot;

[0033] 3. Electricity testing pole; 31. Clamping section; 311. Clamping surface; 32. Extension section; 33. Limiting platform;

[0034] 41. Foil tester assembly; 411. Resistor; 412. Foil tester;

[0035] 42. Multimeter electrical testing assembly; 421. Conductive sheet; 422. Wire; 423. Multimeter;

[0036] 5. driving assembly; 51. driving member; 52. connecting member; 53. push rod;

[0037] 61. Clamp switch; 62. Voltage test switch; 7. Battery; 8. Warning light; 9. Hand-held tube. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] The electrical testing device provided in this embodiment is as follows: Figure 1-Figure 3As shown, the electrical testing device includes a shell 1, a conductive rod 2, two electrical testing rods 3, a driving mechanism and an electrical testing mechanism. The conductive rod 2 is arranged inside the shell 1. One end of the conductive rod 2 is provided with a slide groove 21 along the radial direction of the conductive rod 2. The two electrical testing rods 3 are both slidably arranged in the slide groove 21. At least part of the electrical testing rods 3 extend out of the shell 1. The driving mechanism includes two driving components 5. The two driving components 5 are both arranged in the shell 1. The output end of each driving component 5 is connected to a electrical testing rod 3. The two driving components 5 are used to drive the two electrical testing rods 3 to move closer to or away from each other along the radial direction of the conductive rod 2 to clamp or release the wire to be tested. The electrical testing mechanism is arranged inside the shell 1. The end of the conductive rod 2 away from the two electrical testing rods 3 is connected to the electrical testing mechanism. The electrical testing mechanism is used to detect whether the wire to be tested clamped by the two electrical testing rods 3 is energized.

[0043] When in use, the two test rods 3 are moved away from each other through the two driving components 5, and the test device is brought close to the wire to be tested. After the wire to be tested is located at a suitable position between the two test rods 3, the two driving components 5 drive the two test rods 3 to approach each other to clamp the wire to be tested. The current in the wire to be tested will be transmitted to the test mechanism through the test rod 3 and the conductive rod 2, and the test mechanism will detect the incoming current. Compared with the traditional method of manual clamping, the test device can simplify the operation process, make the clamping force more uniform, and greatly improve the stability of clamping, thereby ensuring the accuracy and reliability of the test result.

[0044] like Figure 1-Figure 2 As shown, the test rod 3 includes a clamping section 31 and an extension section 32. The clamping section 31 is located outside the housing 1, and the extension section 32 is located inside the housing 1. One end of the extension section 32 is connected to the clamping section 31, and the other end is connected to the output end of the drive assembly 5. A limiting protrusion is provided at one end of the extension section 32 away from the clamping section 31, and the limiting protrusion is slidably arranged in the slide groove 21 along the radial direction of the conductive rod 2. On the one hand, the extension section 32 is located inside the housing 1 and connected to the drive assembly 5, which can effectively protect the connection structure between the extension section 32 and the drive assembly 5, reduce the interference of the external environment, and improve the stability and reliability of the connection between the test rod 3 and the drive assembly 5. On the other hand, the limiting protrusion on the extension section 32 helps the test rod 3 to move in the slide groove 21 along a predetermined radial trajectory during operation, prevents the test rod 3 from deflecting or shaking, and ensures good contact between the test rod 3 and the conductive rod 2, thereby improving the accuracy and safety of the test.

[0045] like Figure 2As shown, a limit platform 33 is provided at the connection between the clamping section 31 and the extension section 32. The limit platform 33 can abut against the end surface of the shell 1, thereby enhancing the integral connection between the test rod 3 and the shell 1, and can absorb or disperse external vibration or impact energy to a certain extent, thereby preventing the test rod 3 from loosening or shifting due to excessive vibration, maintaining the test rod 3 in a relatively stable state in the shell 1, and preventing the test rod 3 from shifting and damaging the conductive rod 2 connected to it when being impacted, thereby improving the reliability and stability of the test device.

[0046] like Figure 2 As shown, the radial width of the clamping section 31 gradually decreases from the direction close to the extension section 32 toward the direction away from the extension section 32. The pointed clamping section 31 is more flexible and convenient in operation, and can be used to test electricity in some narrow spaces or electrical devices with complex structures. It can overcome space limitations and improve the applicability of the electrical testing device in various complex environments.

[0047] like Figure 2 As shown, the clamping section 31 includes a clamping surface 311. The two clamping surfaces 311 of the two clamping sections 31 are both planes, and the two clamping surfaces 311 are parallel to each other. The two clamping surfaces 311 can provide uniform and stable clamping force, and the two planes can achieve a large area of ​​fitting contact with the wire to be tested, so that the wire to be tested is subjected to balanced force during the clamping process, and is not prone to slippage or shaking, thereby improving the accuracy and reliability of electrical testing.

[0048] like Figure 2 As shown, the driving assembly 5 includes a driving member 51, a connecting member 52 and a push rod 53. The driving member 51 is arranged in the housing 1, and the connecting member 52 is slidably arranged on the inner wall of the housing 1. One end of the connecting member 52 is connected to the output end of the driving member 51. The driving member 51 can drive the connecting member 52 to reciprocate relative to the housing 1. The other end of the connecting member 52 is rotationally connected to the first end of the push rod 53, and the second end of the push rod 53 is rotationally connected to the test rod 3. The driving member 51 drives the connecting member 52 to reciprocate relative to the housing 1, and the angle between the push rod 53 and the test rod 3 changes, so that the two test rods 3 are close to or away from each other, and the two test rods 3 can be flexibly controlled to move radially along the housing 1 within a certain range, and the test wire can be clamped, released or the contact position can be adjusted, etc., which improves the flexibility of the test device.

[0049] In some embodiments, the driving member 51 may be a cylinder, in which a piston rod can reciprocate in the cylinder, and one end of the piston rod is connected to the connecting member 52 to drive the connecting member 52 to reciprocate relative to the housing 1. In other embodiments, the driving member 51 may be a hydraulic cylinder, in which a piston rod can reciprocate in the hydraulic cylinder, and one end of the piston rod is connected to the connecting member 52 to drive the connecting member 52 to reciprocate relative to the housing 1. In some embodiments, the driving member 51 may include a motor, a lead screw and a nut, in which the motor is connected to the lead screw, the nut is sleeved on the lead screw and is threadedly connected to the lead screw, and the nut is connected to the connecting member 52 to drive the connecting member 52 to reciprocate relative to the housing 1. The specific form of the driving member 51 is not limited herein.

[0050] In this embodiment, the angle range between the push rod 53 and the test rod 3 is 60 degrees-90 degrees, and the initial angle is 60 degrees. In the process of the angle increasing from 60 degrees to 90 degrees, the two test rods 3 approach each other, and in the process of the angle decreasing from 90 degrees to 60 degrees, the two test rods 3 move away from each other. The specific angle can be 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, 90 degrees, etc., which is not limited here, as long as the clamping sections 31 of the two test rods 3 can stably clamp the wires to be tested.

[0051] like Figure 1 As shown, the electrical testing device also includes a clamping switch 61 and a battery 7. One end of the clamping switch 61 is connected to the battery 7, and the other end is connected to the driving member 51. The clamping switch 61 is used to start or pause the movement of the driving member 51, and the clamping switch 61 is arranged on the outside of the shell 1, so that the operator can operate the clamping switch 61 to control the clamping and release of the electrical testing rod 3 on the test wire, which improves the convenience of operating the electrical testing device, saves operation time, and improves the efficiency of electrical testing.

[0052] like Figure 3 As shown, the electricity testing mechanism includes a foil electricity testing component 41 and a multimeter electricity testing component 42. The foil electricity testing component 41 and the multimeter electricity testing component 42 are used to detect whether the wires to be tested clamped by the two electricity testing rods 3 are energized. The combination of the foil electricity testing component 41 and the multimeter electricity testing component 42 can effectively avoid the misjudgment that may exist in a single electricity testing method, thereby greatly improving the accuracy of the detection result.

[0053] In some embodiments, the electric test mechanism only includes a foil electric test component 41. The working principle of the foil electric test component 41 is intuitive, the structure is simple, and it is easy to manufacture and install. In other embodiments, the electric test mechanism only includes a multimeter electric test component 42. The multimeter electric test component 42 has high measurement accuracy, can measure multiple electrical parameters such as current, voltage, resistance, etc., adapts to multiple electrical environments and application scenarios, and can also provide feedback on whether the tested wire is charged.

[0054] In this embodiment, Figure 3 As shown, the foil electroscope assembly 41 includes a resistor 411 and a foil electroscope 412. One end of the resistor 411 is connected to the conductive rod 2, and the other end is connected to the foil electroscope 412. The resistor 411 can limit the current flowing into the foil electroscope 412 to prevent the foil electroscope 412 from being damaged by excessive current, protect the foil electroscope 412, extend the service life of the foil electroscope 412, and improve the reliability and accuracy of the electroscope. Optionally, the resistance value of the resistor 411 can be 50 megaohms-300 megaohms, and the specific value can be 60 megaohms, 90 megaohms, 120 megaohms, 150 megaohms, 180 megaohms, 210 megaohms, 240 megaohms, 270 megaohms, 300 megaohms, etc., which are not limited here.

[0055] Specifically, the two foils in the foil electroscope 412 are originally electrically neutral. When current passes through the conductive rod 2, the two foils receive the conducted charge, and the charge will be redistributed on the surfaces of the two foils, so that the two foils carry the same charge. According to the principle that like charges repel each other, the two foils will repel each other and open at a certain angle. The more charges in the tested wire, the more like charges on the foil, the greater the repulsive force between the two foils, and the larger the opening angle. A preliminary judgment can be made quickly based on the opening angle of the two foils. The operation is simple and no complicated reading operations are required to detect whether the tested wire is charged.

[0056] In this embodiment, Figure 3 As shown, the multimeter electrical testing assembly 42 includes a wire group and a multimeter 423. One end of the wire group is electrically connected to the conductive rod 2, and the other end is electrically connected to the multimeter 423. The multimeter 423 can provide detailed and accurate data, providing a basis for subsequent work or analysis, thereby improving the reliability of the electrical testing device.

[0057] Specifically, Figure 3 As shown, the multimeter electrical testing component 42 also includes a conductive sheet 421. Two mounting grooves 22 are provided on both sides of the conductive rod 2. The two conductive sheets 421 are respectively installed in the two mounting grooves 22. The wire group includes two wires 422. The two first ends of the two wires 422 are respectively connected to the two conductive sheets 421. The two second ends of the two wires 422 are both connected to a multimeter 423. The multimeter 423 can detect the current and voltage transmitted in the conductive rod 2. The multimeter 423 is a conventional application equipment of technicians in this field and will not be described in detail here.

[0058] The electric test device has an electric test mechanism that is simple and intuitive and has precise measurement functions, meeting the diverse electric test needs of different user groups and different application scenarios. When one of the electric test components fails, such as the foil electric tester 412 of the foil electric test component 41 is damaged or the multimeter 423 in the multimeter electric test component 42 fails, the other electric test component can still be used normally, thereby improving the flexibility of the electric test device.

[0059] like Figure 1 As shown, the power testing device further includes a power testing switch 62, one end of which is connected to the battery 7, and the other end is connected to the multimeter 423. The power testing switch 62 is used to turn on or off the multimeter 423, and the power testing switch 62 is arranged on the outside of the housing 1. When the multimeter 423 needs to be used for power testing, the power testing switch 62 is operated to turn on the multimeter 423. When the power testing is completed or the multimeter 423 is not needed, the multimeter 423 can be turned off, which reduces the internal components of the multimeter 423 from being in a working state for a long time, and the overheating, aging and other faults occur, saves the power of the multimeter 423, and helps to extend the service life of the multimeter 423.

[0060] like Figure 1 As shown, the electrical testing device also includes a prompt light 8, which is arranged on the outside of the shell 1. The prompt light 8 is electrically connected to the multimeter 423 or the foil tester 412. When the wire to be tested is energized, the prompt light 8 lights up, which simply and intuitively prompts the operator. The operator does not need to carefully check the reading of the multimeter 423 or make complicated judgments, thereby improving the efficiency of electrical testing.

[0061] like Figure 1 As shown, the electrical testing device also includes a hand-held tube 9, which is sleeved on the shell 1 and is made of insulating material. On the one hand, anti-slip protrusions or bumps are provided on the hand-held tube 9 to facilitate the operator to hold the electrical testing device. On the other hand, the hand-held tube 9 is made of insulating material to prevent the current from being transmitted to the operator's hands, thereby improving the safety of electrical testing.

[0062] In this embodiment, in order to facilitate the manufacture and assembly of the electrical testing device, Figure 1 As shown, the housing 1 includes an extension tube 11, a connecting tube 12, a first shell 13, a second shell 14 and a partition 15. One end of the connecting tube 12 is connected to the extension tube 11, the other end of the connecting tube 12 is connected to the first end of the first shell 13, the second end of the first shell 13 is connected to the second shell 14, and a partition 15 is provided between the first shell 13 and the second shell 14.

[0063] like Figure 1As shown, a receiving cavity 121 is provided in the connecting tube 12, a part of the extension section 32 is arranged in the receiving cavity 121, a driving assembly 5 is arranged in the receiving cavity 121, openings 111 are radially provided at both ends of the extension tube 11, another part of the extension section 32 is arranged in the extension tube 11, the extension section 32 can move radially in the extension tube 11, and the limit platform 33 abuts against the end surface of the extension tube 11. A part 2 of the conductive rod 2 is fixed in the connecting tube 12, another part of the conductive rod 2 is arranged in the first shell 13, a foil electrometer assembly 41 is arranged in the first shell 13, and a foil electrometer 412 is fixed to one end of the partition 15, the other end of the partition 15 is connected to the second shell 14, a multimeter 423 and a battery 7 are arranged in the second shell 14, a wire 422 can pass through the partition 15 and connect to the multimeter 423, and a hand-held tube 9 is sleeved on the second shell 14. This structural design fully considers the maintenance and replacement requirements of various components during use, improves the operability and practicality of the electrical testing device, reduces maintenance time and difficulty, reduces use cost and maintenance cost, and ensures that the electrical testing device can maintain good performance and reliability during long-term use.

[0064] In some embodiments, in order to facilitate observation of the electrical testing mechanism, the first shell 13 and the second shell 14 are both set to transparent shells. In other embodiments, an installation port is opened on the second shell 14, which is used to install the display screen of the multimeter 423, which can also facilitate observation of the electrical testing results.

[0065] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An electrical testing device, characterized in that: include: Housing (1); A conductive rod (2) is arranged inside the housing (1), and one end of the conductive rod (2) is provided with a sliding groove (21) along the radial direction of the conductive rod (2); Two electric test rods (3), both of which are slidably disposed in the slide groove (21), and at least a portion of the electric test rods (3) extends out of the housing (1); The driving mechanism comprises two driving components (5), the two driving components (5) are both arranged in the housing (1), the output end of each driving component (5) is connected to one of the test rods (3), and the two driving components (5) are configured to drive the two test rods (3) to move closer to or farther from each other along the radial direction of the conductive rod (2) so as to clamp or release the wire to be tested; An electric test mechanism is arranged inside the housing (1); one end of the conductive rod (2) away from the two electric test rods (3) is connected to the electric test mechanism; the electric test mechanism is configured to detect whether the electric wire to be tested clamped by the two electric test rods (3) is energized.

2. The electrical testing device according to claim 1, characterized in that: The test rod (3) comprises a clamping section (31) and an extension section (32), wherein the clamping section (31) is located outside the shell (1), and the extension section (32) is located inside the shell (1), one end of the extension section (32) is connected to the clamping section (31), and the other end is connected to the output end of the drive assembly (5), and a limiting protrusion is provided at one end of the extension section (32) away from the clamping section (31), and the limiting protrusion is slidably arranged in the slide groove (21) along the radial direction of the conductive rod (2).

3. The electrical testing device according to claim 2, characterized in that: A limiting platform (33) is provided at the connection between the clamping section (31) and the extending section (32), and the limiting platform (33) can abut against the end surface of the shell (1).

4. The electrical testing device according to claim 2, characterized in that: The radial width of the clamping section (31) gradually decreases from a direction close to the extending section (32) toward a direction away from the extending section (32).

5. The electrical testing device according to claim 2, characterized in that: The clamping section (31) comprises a clamping surface (311), and the two clamping surfaces (311) of the two clamping sections (31) are both planes, and the two clamping surfaces (311) are parallel to each other.

6. The electrical testing device according to claim 2, characterized in that: The driving assembly (5) comprises: A driving member (51), wherein the driving member (51) is arranged in the housing (1); a connecting member (52), the connecting member (52) being slidably disposed on the inner wall of the housing (1), one end of the connecting member (52) being connected to the output end of the driving member (51), and the driving member (51) being capable of driving the connecting member (52) to reciprocate relative to the housing (1); A push rod (53), the other end of the connecting member (52) is rotatably connected to the first end of the push rod (53), and the second end of the push rod (53) is rotatably connected to the electrical testing rod (3).

7. The electrical testing device according to any one of claims 1 to 6, characterized in that: The electrical testing mechanism comprises a foil electrical testing component (41) and / or a multimeter electrical testing component (42), and the foil electrical testing component (41) and / or the multimeter electrical testing component (42) are configured to detect whether the wire to be tested clamped by the two electrical testing rods (3) is energized.

8. The electrical testing device according to claim 7, characterized in that: The foil electroscope assembly (41) comprises a resistor (411) and a foil electroscope (412); one end of the resistor (411) is connected to the conductive rod (2), and the other end is connected to the foil electroscope (412).

9. The electrical testing device according to claim 7, characterized in that: The multimeter electrical testing assembly (42) comprises a wire group and a multimeter (423), one end of the wire group is electrically connected to the conductive rod (2), and the other end is electrically connected to the multimeter (423).

10. The electrical testing device according to any one of claims 1 to 6, characterized in that: The electrical testing device further comprises a hand-held tube (9), the hand-held tube (9) is sleeved on the housing (1), and the hand-held tube (9) is made of insulating material.

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