Leakage current tester for insulated boom truck

Abstract

The utility model belongs to the field of testers, particularly relates to a leakage current tester for an insulated boom truck, and aims to solve the problem that a test pencil cannot detect voltage at a high position of the insulated boom truck due to the fact that the height of the test pencil cannot be adjusted by a conventional current tester, the following scheme is provided: the leakage current tester comprises a tester body; the moving device is arranged on the tester body; the cooling device is arranged on one side of the tester body; the chain wheel and chain transmission mechanism is arranged on one side of the cooling device; the screw transmission mechanism is arranged at the top of the tester body; the test pencil device is arranged on the screw transmission mechanism; according to the utility model, the height of the test pencil can be adjusted, so that the test pencil can detect the voltage at the high position of the insulated boom truck.

Description

Technical Field

[0001] This application relates to the field of current testers, and particularly to a leakage current tester for an insulated boom truck. Background Art

[0002] A current tester is a portable rectifying instrument with high sensitivity and a multi-range protection circuit. Its features are: wide measurement range, with a total of twenty ranges, capable of measuring AC and DC stray voltages and stray currents respectively, without the need for its own power supply, safe and reliable. It is suitable for testing the currents and voltages generated by rails, water pipes, cables, etc. in coal mines.

[0003] The patent document with the publication number CN215340249U discloses a leakage current tester for an insulated boom truck, which includes a tester body, universal wheels, a telescopic pull rod, a handle, convex strips, side protection blocks, a front protection block, and a power supply module. The power supply module is integrally provided on the tester body. Universal wheels are fixed at the bottom of the tester body, a handle is fixed at the top of the tester body, a telescopic pull rod is fixed on the rear side wall of the tester body, side protection blocks are provided at the corners of the tester body, a circle of convex strips is fixed on the front side wall of the tester body, and front protection blocks are fixed at the four corners of the front side wall of the convex strips. The leakage current tester for an insulated boom truck of the present utility model is convenient to carry and has strong protection.

[0004] The patent document with the publication number CN210376480U discloses a leakage current tester for an insulated boom truck, which includes a current tester and a control panel protection cover. An outer shell of the current tester is provided outside the current tester. Current tester feet are provided at the bottom of the outer shell of the current tester, and the current tester feet are fixed to the outer shell of the current tester by screws. A display screen is provided on the surface of the current tester. A test connection pen socket is provided below the display screen. One end of the test connection pen connected to the test connection pen socket is provided with a test connection pen plug. The heat generated during the internal operation of the current detector can be quickly dissipated through the heat dissipation net by opening the heat dissipation net protection plates on both sides, avoiding overheating and damage to the components. When the current detector is placed on a flat surface, the anti-collision bottom pads at the bottom of the feet can buffer the impact force with the placement surface, preventing the internal components of the current detector from becoming insensitive due to shaking.

[0005] However, the existing current testers cannot adjust the height of the test pen, resulting in the problem that the test pen cannot detect the voltage at high positions of the insulated boom truck. For this reason, a leakage current tester for an insulated boom truck is proposed. Summary of the Utility Model

[0006] In order to improve the problem that the existing current tester cannot adjust the height of the electroscope, resulting in the electroscope being unable to detect the voltage at high positions of the insulated boom truck, the present application provides an insulated boom truck leakage current tester.

[0007] The insulated boom truck leakage current tester provided by the present application adopts the following technical solutions:

[0008] An insulated boom truck leakage current tester, comprising:

[0009] A tester body;

[0010] A moving device, which is arranged on the tester body;

[0011] A cooling device, which is arranged on one side of the tester body;

[0012] A sprocket chain transmission mechanism, which is arranged on one side of the cooling device;

[0013] A screw rod transmission mechanism, which is arranged on the top of the tester body;

[0014] An electroscope device, which is arranged on the screw rod transmission mechanism;

[0015] A fixed plug device, which is arranged on the electroscope device.

[0016] Further, the moving device includes a fixed frame, a rocker, four fixed blocks and four wheels. The four fixed blocks are all fixedly connected to the tester body, and the four fixed blocks are respectively rotatably connected to the four wheels. The tester body is fixedly connected to the fixed frame, and the fixed frame is rotatably connected to the rocker. The moving device is used to drive the tester body to move.

[0017] Further, the cooling device includes two ventilation pipes and two fan blades. Two openings are formed on the tester body, and the two openings are respectively fixedly connected to the two ventilation pipes. The two fan blades are respectively rotatably connected to the ventilation pipes. The cooling device is used to dissipate heat from the tester body.

[0018] Further, the sprocket chain transmission mechanism includes two sprockets and a chain. A support frame is fixedly connected to the tester body, and a rotating motor is fixedly installed on the support frame. The output shaft of the rotating motor is fixedly connected to one of the two sprockets. The two sprockets are respectively fixedly connected to the fan blades, and both of the two sprockets are in transmission connection with the chain.

[0019] Further, the screw drive mechanism includes a screw, a chute and a slider. The chute is fixedly connected to the tester body. The chute is slidably connected to the slider. A motor is fixedly installed on the chute. The output shaft of the motor is fixedly connected to the screw. The screw is threadedly connected to the slider. The screw drive mechanism is used to drive the electric pen device and the fixed plug device to move.

[0020] Further, the electric pen device includes a push rod motor, an electric pen, an insulating plate and a conducting wire. The push rod motor is fixedly installed on the slider. The output shaft of the push rod motor is fixedly connected to the insulating plate. The electric pen is fixedly installed on the insulating plate. The electric pen and the tester body are respectively fixedly connected to both ends of the conducting wire. The electric pen device is used to capture the leakage current of the insulating boom truck.

[0021] Further, the fixed plug device includes two fixed plugs, two air pipes and two negative pressure pumps. Both negative pressure pumps are fixedly connected to the insulating plate. The two negative pressure pumps are respectively fixedly connected to the two air pipes. The two air pipes are respectively fixedly connected to the two fixed plugs. The fixed plug device is used to fixedly install the electric pen in the area to be detected.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Through the cooling device, efficient heat dissipation work can be carried out on the tester body, ensuring that the parts with low heat resistance inside the tester body can operate normally and improving the service life of the tester body;

[0024] 2. Through the screw drive mechanism, the electric pen device and the fixed plug device can be driven to move, adjusting the height of the test pen, thereby improving the test efficiency of the electric pen. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the overall structure schematic diagram in the first embodiment of the present application;

[0026] Figure 2 is the schematic diagram of the screw drive mechanism in the first embodiment of the present application;

[0027] Figure 3 is the connection structure schematic diagram of the electric pen device and the fixed plug device in the first embodiment of the present application;

[0028] Figure 4 is the connection structure schematic diagram of the cooling device and the sprocket chain drive mechanism in the first embodiment of the present application.

[0029] Reference Signs: 1, rocker; 2, fixed frame; 3, fixed block; 4, wheel; 5, air pipe; 6, fixed plug; 7, conducting wire; 8, motor; 9, chute; 10, slider; 11, screw; 12, tester body; 13, rotating motor; 14, support frame; 15, opening; 16, voltage tester; 17, insulating plate; 18, push rod motor; 19, negative pressure pump; 20, fan blade; 21, sprocket; 22, chain; 23, ventilation pipe. Detailed Implementation Manner

[0030] Embodiment 1

[0031] The following further elaborates on Embodiment 1 in the present application in conjunction with the attached Figures 1-4 drawings.

[0032] The installation method of a leakage current tester for an insulating boom truck is as follows with reference to Figure 1 :

[0033] Tester body 12;

[0034] Moving device, the moving device is arranged on the tester body 12;

[0035] Cooling device, the cooling device is arranged on one side of the tester body 12;

[0036] Sprocket and chain drive mechanism, the sprocket and chain drive mechanism is arranged on one side of the cooling device;

[0037] Screw drive mechanism, the screw drive mechanism is arranged on the top of the tester body 12;

[0038] Voltage tester device, the voltage tester device is arranged on the screw drive mechanism;

[0039] Fixed plug device, the fixed plug device is arranged on the voltage tester device.

[0040] With reference to Figures 2-3, the screw drive mechanism includes a screw 11, a chute 9 and a slider 10. The chute 9 is fixedly connected to the tester body 12. The chute 9 is slidably connected to the slider 10. A motor 8 is fixedly installed on the chute 9. The output shaft of the motor 8 is fixedly connected to the screw 11. The screw 11 is threadedly connected to the slider 10. The screw drive mechanism is used to drive the electric pen device and the fixed plug device to move. The electric pen device includes a push rod motor 18, an electric pen 16, an insulating plate 17 and a conducting wire 7. The push rod motor 18 is fixedly installed on the slider 10. The output shaft of the push rod motor 18 is fixedly connected to the insulating plate 17. The electric pen 16 is fixedly installed on the insulating plate 17. The electric pen 16 and the tester body 12 are respectively fixedly connected to both ends of the conducting wire 7. The electric pen device is used to capture the leakage current of the insulating boom truck. The fixed plug device includes two fixed plugs 6, two air pipes 5 and two negative pressure pumps 19. The two negative pressure pumps 19 are both fixedly connected to the insulating plate 17. The two negative pressure pumps 19 are respectively fixedly connected to the two air pipes 5. The two air pipes 5 are respectively fixedly connected to the two fixed plugs 6. The fixed plug device is used to fixedly install the electric pen 16 in the area to be detected.

[0041] Referring to Figure 4 , the cooling device includes two ventilation pipes 23 and two fan blades 20. Two openings 15 are opened on the tester body 12. The two openings 15 are respectively fixedly connected to the two ventilation pipes 23. The two fan blades 20 are respectively rotatably connected to the ventilation pipes 23. The cooling device is used to dissipate heat from the tester body 12. The sprocket chain drive mechanism includes two sprockets 21 and a chain 22. A support frame 14 is fixedly connected to the tester body 12. A rotating motor 13 is fixedly installed on the support frame 14. The output shaft of the rotating motor 13 is fixedly connected to one of the two sprockets 21. The two sprockets 21 are respectively fixedly connected to the fan blades 20. The two sprockets 21 are both drivingly connected to the chain 22.

[0042] The implementation principle of a leakage current tester for an insulating boom truck in an embodiment of this application is as follows: During use, the operator pulls the rocker 1, and the rocker 1 drives the tester body 12 to move in front of the insulating boom truck. The motor 8 is started, and the motor 8 drives the screw 11 to rotate. The screw 11 drives the slider 10, the fixed plug device and the electric pen device to move. The push rod motor 18 is started, and the push rod motor 18 drives the electric pen 16 and the fixed plug device to move. The two negative pressure pumps 19 are started, and the two negative pressure pumps 19 respectively form negative pressure inside the two air pipes 5 and the two fixed plugs 6, and fix the electric pen 16 at the position to be detected. The electric pen 16 senses the leaked current and reflects it to the tester body 12 through the conducting wire 7. At the same time, the rotating motor 14 is started, and the rotating motor 14 drives one of the two sprockets 21 to rotate. The sprocket 21 drives the other sprocket 21 to rotate through the chain 22. The two sprockets 21 rotate to drive the two fan blades 20 to rotate respectively, and the two fan blades 20 dissipate heat from the tester body 12.

[0043] Example 2

[0044] The difference between this embodiment and Embodiment 1 is that soft packages are fixedly connected to the four corners of the tester body 12 to prevent the tester body 12 from being damaged by hitting hard objects during movement.

[0045] The above are all preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered by the protection scope of this application.

Claims

1. An insulated boom truck leakage current tester, characterized in that: include: Tester body (12); A mobile device, the mobile device is arranged on the tester body (12); A cooling device, the cooling device being arranged on one side of the tester body (12); A sprocket chain transmission mechanism, wherein the sprocket chain transmission mechanism is arranged on one side of the cooling device; A screw transmission mechanism, the screw transmission mechanism is arranged on the top of the tester body (12); An electric test pencil device, which is arranged on the screw transmission mechanism; A fixed plug device is arranged on the electric test pencil device.

2. The insulated boom truck leakage current tester according to claim 1, characterized in that: The mobile device comprises a fixed frame (2), a rocker (1), four fixed blocks (3) and four wheels (4); the four fixed blocks (3) are all fixedly connected to the tester body (12); the four fixed blocks (3) are respectively rotatably connected to the four wheels (4); the tester body (12) is fixedly connected to the fixed frame (2); the fixed frame (2) is rotatably connected to the rocker (1); and the mobile device is used to drive the tester body (12) to move.

3. The insulated boom truck leakage current tester according to claim 2, characterized in that: The cooling device comprises two ventilation pipes (23) and two fan blades (20); two openings (15) are provided on the tester body (12); the two openings (15) are respectively fixedly connected to the two ventilation pipes (23); the two fan blades (20) are respectively rotatably connected to the ventilation pipes (23); and the cooling device is used to dissipate heat from the tester body (12).

4. The insulation boom truck leakage current tester according to claim 3 is characterized in that: The sprocket chain transmission mechanism comprises two sprockets (21) and a chain (22); a support frame (14) is fixedly connected to the tester body (12); a rotating motor (13) is fixedly mounted on the support frame (14); an output shaft of the rotating motor (13) is fixedly connected to one of the two sprockets (21); the two sprockets (21) are respectively fixedly connected to the fan blades (20); and both sprockets (21) are drivingly connected to the chain (22).

5. The insulated boom truck leakage current tester according to claim 4, characterized in that: The screw transmission mechanism comprises a screw (11), a slide groove (9) and a slider (10); the slide groove (9) is fixedly connected to the tester body (12); the slide groove (9) is slidably connected to the slider (10); a motor (8) is fixedly mounted on the slide groove (9); the output shaft of the motor (8) is fixedly connected to the screw (11); the screw (11) is threadedly connected to the slider (10); and the screw transmission mechanism is used to drive the electric tester device and the fixed plug device to move.

6. The insulated boom truck leakage current tester according to claim 5, characterized in that: The electric tester device comprises a push rod motor (18), an electric tester (16), an insulating plate (17) and a conductive wire (7); the push rod motor (18) is fixedly mounted on a slider (10); the output shaft of the push rod motor (18) is fixedly connected to the insulating plate (17); the electric tester (16) is fixedly mounted on the insulating plate (17); the electric tester (16) and a tester body (12) are respectively fixedly connected to two ends of the conductive wire (7); and the electric tester device is used to capture leakage current of an insulating boom truck.

7. The insulated boom truck leakage current tester according to claim 6, characterized in that: The fixing plug device comprises two fixing plugs (6), two air pipes (5) and two negative pressure pumps (19), the two negative pressure pumps (19) are fixedly connected to the insulating plate (17), the two negative pressure pumps (19) are respectively fixedly connected to the two air pipes (5), the two air pipes (5) are respectively fixedly connected to the two fixing plugs (6), and the fixing plug device is used to fix the electric test pencil (16) in the area to be tested.

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