CN118584273A - A preventive test device for electrical equipment in the whole plant - Google Patents

Abstract

The present invention discloses a preventive test device for electrical equipment in the whole plant, which relates to the field of electric power testing, and includes an operating table, on which a withstand voltage tester and a first wiring assembly for electrically connecting the equipment to be tested are arranged, the output end of the withstand voltage tester is electrically connected to a second wiring assembly, the second wiring assembly contacts the first wiring assembly to achieve electrical connection; the operating table is provided with a rotating assembly for rotating the second wiring assembly; the operating table is provided with a lifting assembly. The beneficial effect is that the rotating assembly is driven by stepping on the lifting assembly, and the staff releases the lifting assembly, at which time the lifting assembly will automatically rise, releasing the safety switch, and cutting off the power to the withstand voltage tester, while driving the rotating assembly to reverse, disconnecting the first wiring assembly from the second wiring assembly, thereby cutting off the electrical connection between the withstand voltage tester and the equipment to be tested, and completely stopping the test, which can ensure that the power supply is completely cut off, forming a double insurance for anti-electric shock safety.

Description

A preventive test device for electrical equipment in the whole plant

Technical Field

The invention relates to the technical field of electric power testing, and in particular to a preventive testing device for electrical equipment in a whole plant.

Background Art

Preventive testing is an important part of the operation and maintenance of power equipment, and is an effective means to ensure the safe operation of the power system. Preventive testing of electrical equipment can be divided into: AC withstand voltage test, DC withstand voltage test, DC resistance test, ratio test, loop resistance test, switch test, dielectric loss angle test, insulation test, ground resistance test, cable and wire insulation diameter test, load test (current), air conditioning wind speed, pressure, temperature, humidity, noise test, lighting brightness test, etc. Preventive testing requires the use of a test platform to complete.

In the existing operating procedures, workers need to wear insulating clothing and step on the safety switch. The voltage tester can only work when the safety switch is in the normally closed state. After the worker releases the safety switch, the safety switch automatically breaks the circuit and cuts off the power supply of the test equipment. After a lot of practical experience, it is found that safety protection only by using the safety switch is not safe enough. Once the safety switch fails, even if it is released, the power cannot be cut off. At that time, the worker is at risk of electric shock.

Summary of the invention

The purpose of the present invention is to provide a preventive test device for electrical equipment in the whole plant in order to solve the above-mentioned problems, as described in detail below.

To achieve the above object, the present invention provides the following technical solutions:

The present invention provides a preventive test device for electrical equipment in a whole plant, comprising an operating table, on which a withstand voltage tester and a first wiring assembly for electrically connecting equipment to be tested are arranged, and an output end of the withstand voltage tester is electrically connected to a second wiring assembly, and the second wiring assembly contacts the first wiring assembly to achieve electrical connection;

The operating table is provided with a rotating component for rotating the second wiring component;

The operating table is provided with a lifting assembly for driving the rotating assembly to rotate the second wiring assembly so as to separate the second wiring assembly from the first wiring assembly;

A safety switch is provided at the bottom of the operating table, and the safety switch is electrically connected to the withstand voltage tester. When the lifting assembly moves downward, it can drive the rotating assembly to rotate the second wiring assembly so that the second wiring assembly contacts the first wiring assembly, and at the same time, it can press the safety switch to power on the withstand voltage tester.

By using the above-mentioned preventive test device for electrical equipment in the whole plant, the equipment to be tested is placed on the operating table, the first wiring assembly is electrically connected to the test equipment, and the staff steps on the lifting assembly downward to drive the rotating assembly through the lifting assembly, so that the rotating assembly rotates the second wiring assembly, so that the second wiring assembly is electrically connected to the first wiring assembly;

At the same time, the lifting assembly can press the safety switch downward to close the safety switch, and then operate the voltage tester to make the voltage tester output high voltage electricity to the test equipment. The staff releases the lifting assembly, and the lifting assembly will automatically rise, releasing the safety switch to cut off the power of the voltage tester. At the same time, the lifting assembly will drive the rotating assembly to reverse, disconnecting the first wiring assembly from the second wiring assembly, thereby cutting off the electrical connection between the voltage tester and the equipment under test, and completely stopping the test. This can ensure that the power supply is completely cut off.

Preferably, universal wheels are provided at the four corners of the bottom of the operating table, and a friction plate is provided on the lifting assembly for contacting the ground to stabilize the operating table.

Preferably, the first wiring assembly comprises a mounting plate 1, the mounting plate 1 is fixedly arranged on the operating table, two conductive sheets 1 are arranged on the mounting plate 1, and the conductive sheets 1 are electrically connected to conductive clips through wires.

Preferably, the second wiring assembly includes a second mounting plate, on which are disposed two conductive plates 2 matching the first conductive plate, and the two conductive plates 2 are electrically connected to the positive and negative electrodes of the withstand voltage tester through wires, respectively.

Preferably, the rotating assembly includes a first rotating shaft and a second rotating shaft, the second rotating shaft is vertically rotatably arranged on an operating table, a driving rod is fixedly arranged on the upper end of the second rotating shaft, a mounting plate 2 is fixed on the driving rod, two fixed plates are arranged on the operating table, and a first rotating shaft is rotatably arranged between the two fixed plates, a gear is fixedly arranged on the surface of the first rotating shaft, bevel gears are arranged on both the first rotating shaft and the second rotating shaft, and the two bevel gears are meshed.

Preferably, the lifting assembly includes two guide rods, which are vertically arranged on the operating table, and a mounting frame is slidably arranged between the two guide rods. A tooth plate is vertically arranged on the mounting frame, and the tooth plate is meshed with the gear. A tension spring is sleeved on the surface of the guide rod, and both ends of the tension spring are respectively fixed to the mounting frame and the operating table.

Preferably, a cylinder for stepping on is rotatably provided on the mounting frame.

Preferably, the friction plate is fixedly arranged on the mounting frame, and the bottom of the friction plate is a plane.

Preferably, the bottom of the mounting frame corresponds to the upper side of the safety switch, and the safety switch is fixed on the operating table through a supporting plate.

Preferably, a fixing assembly is provided on the operating table for fixing the belt testing equipment, the fixing assembly includes a lead screw and a guide plate, the lead screw is vertically rotatably arranged on the upper surface of the operating table, and a handle is arranged on the upper end of the lead screw, the guide plate is vertically arranged on the operating table, a pressure plate is slidably arranged on the guide plate, the pressure plate is parallel to the surface of the operating table, and the pressure plate is threadedly connected to the lead screw.

The beneficial effects are:

1. Step on the lifting assembly to drive the rotating assembly, so that the rotating assembly rotates the second wiring assembly, so that the second wiring assembly is electrically connected to the first wiring assembly. At the same time, the lifting assembly can press the safety switch downward to close the safety switch, so that the withstand voltage tester outputs high voltage electricity to the test equipment. The staff releases the lifting assembly, and then the lifting assembly will automatically rise, releasing the safety switch to cut off the power of the withstand voltage tester. At the same time, the rotating assembly is driven to reverse, so that the first wiring assembly is disconnected from the second wiring assembly, thereby cutting off the electrical connection between the withstand voltage tester and the device under test, and completely stopping the test. This can ensure that the power supply is completely cut off, forming a double insurance against electric shock safety;

2. Universal wheels are set at the bottom of the operating table to make the device easy to move. The lifting assembly can drive the friction plate to move downward so that the friction plate fits the ground, thereby improving the stability of the device and avoiding movement during use;

3. The friction plate can support the lifting assembly. When the friction plate contacts the ground, the lifting assembly cannot continue to move downward because the lifting assembly is moved downward by the staff stepping on it. The support of the friction plate can prevent the lifting assembly from excessively pressing down the safety switch and excessively driving the rotating assembly, causing damage to the safety switch and the contact point between the second wiring assembly and the first wiring assembly.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

Fig. 1 is a front view of the structure of the present invention;

FIG2 is a schematic diagram of the three-dimensional structure of the lifting assembly of the present invention;

FIG. 3 is a schematic diagram of the three-dimensional structure of the present invention.

The following are the descriptions of the reference numerals:

1. Operating table; 2. Universal wheel; 3. Fixed assembly; 4. Pressure plate; 5. Guide plate; 6. Lead screw; 7. Turning handle; 8. Withstand voltage tester; 9. First wiring assembly; 10. Mounting plate one; 11. Conductive sheet one; 12. Conductive clip; 13. Second wiring assembly; 14. Conductive sheet two; 15. Mounting plate two; 16. Lifting assembly; 17. Rotating assembly; 18. Guide rod; 19. Tension spring; 20. Mounting frame; 21. Cylinder; 22. Support plate; 23. Safety switch; 24. Tooth plate; 25. Fixed plate; 26. Rotating shaft one; 27. Gear; 28. Rotating shaft two; 29. Bevel gear; 30. Drive rod; 31. Friction plate.

DETAILED DESCRIPTION

To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

Referring to FIGS. 1 to 3 , the present invention provides a preventive test device for electrical equipment in a whole plant, comprising an operating table 1, on which a withstand voltage tester 8 and a first wiring assembly 9 for electrically connecting the equipment to be tested are arranged, and an output end of the withstand voltage tester 8 is electrically connected to a second wiring assembly 13, the second wiring assembly 13 contacts with the first wiring assembly 9 to achieve electrical connection, and the connection between the second wiring assembly 13 and the first wiring assembly 9 can be cut off;

The operating table 1 is provided with a rotating assembly 17 for rotating the second wiring assembly 13. The second wiring assembly 13 can be rotated by the rotating assembly 17 to achieve contact or disconnection between the second wiring assembly 13 and the first wiring assembly 9.

The operating table 1 is provided with a lifting assembly 16 for driving the rotating assembly 17 to rotate the second wiring assembly 13 so as to separate the second wiring assembly 13 from the first wiring assembly 9;

The lifting assembly 16 has three functions:

First, it can drive the rotating assembly 17;

Second, the safety switch 23 can be pressed to close the safety switch 23. When the lifting assembly 16 is separated from the safety switch 23, the safety switch 23 will automatically break the circuit, thereby cutting off the circuit of the withstand voltage tester 8. The working principle of the safety switch 23 is the prior art;

Third, the lifting assembly 16 can drive the friction plate 31 to move downward, so that the friction plate 31 is in contact with the ground, thereby improving the stability of the device and preventing movement during use;

The friction plate 31 has two functions. Its main function is to improve the stability of the device. At the same time, the friction plate 31 can support the lifting assembly 16. When the friction plate 31 contacts the ground, the lifting assembly 16 cannot continue to move downward because the lifting assembly 16 is moved downward by the staff stepping on it. Through the support of the friction plate 31, it can be prevented that the lifting assembly 16 will excessively press down the safety switch 23 and excessively drive the rotating assembly 17, resulting in damage to the contact between the safety switch 23 and the second wiring assembly 13 and the first wiring assembly 9;

A safety switch 23 is provided at the bottom of the operating table 1, and the safety switch 23 is electrically connected to the withstand voltage tester 8. When the lifting assembly 16 moves downward, it can drive the rotating assembly 17 to rotate the second wiring assembly 13, so that the second wiring assembly 13 contacts the first wiring assembly 9, and at the same time, the safety switch 23 can be pressed to energize the withstand voltage tester 8;

The safety switch 23, the first wiring assembly 9 and the second wiring assembly 13 are provided so that the device has double insurance. If the safety switch 23 fails and the power cannot be cut off in time, the first wiring assembly 9 and the second wiring assembly 13 can ensure that the circuit is broken under the drive of the rotating assembly 17. In addition, this circuit breaking design adopts a purely mechanical design, and the stability is more reliable.

As an optional implementation, universal wheels 2 are provided at the four corners of the bottom of the operating platform 1 , and a friction plate 31 is provided on the lifting assembly 16 for contacting the ground to stabilize the operating platform 1 .

The first wiring assembly 9 includes a mounting plate 10, which is fixedly mounted on the operating table 1. The mounting plate 10 is provided with two conductive sheets 11, and the conductive sheets 11 are electrically connected to conductive clips 12 through wires. The conductive clips 12 can be clamped on the device to be tested.

The second wiring assembly 9 includes a second mounting plate 15 on which two second conductive plates 14 matching the first conductive plate 11 are disposed. The two second conductive plates 14 are electrically connected to the positive and negative electrodes of the withstand voltage tester 8 through wires.

The rotating assembly 17 includes a rotating shaft 1 26 and a rotating shaft 28. The rotating shaft 28 is vertically rotatably arranged on the operating table 1. A driving rod 30 is fixedly arranged on the upper end of the rotating shaft 28. A mounting plate 2 15 is fixed on the driving rod 30. Two fixed plates 25 are arranged on the operating table 1, and the rotating shaft 1 26 is rotatably arranged between the two fixed plates 25. A gear 27 is fixedly arranged on the surface of the rotating shaft 1 26. Bevel gears 29 are arranged on both the rotating shaft 1 26 and the rotating shaft 2 28, and the two bevel gears 29 are meshed.

The lifting assembly 16 includes two guide rods 18, which are vertically arranged on the operating table 1. A mounting frame 20 is slidably arranged between the two guide rods 18. A tooth plate 24 is vertically arranged on the mounting frame 20, and the tooth plate 24 is meshed with a gear 27. A tension spring 19 is sleeved on the surface of the guide rod 18, and the two ends of the tension spring 19 are respectively fixed to the mounting frame 20 and the operating table 1.

A cylinder 21 for stepping on is rotatably provided on the mounting frame 20;

The cylinder 21 can rotate, so the staff need to concentrate when stepping on it to avoid their feet from being separated from the cylinder 21. This design can make it easy for the staff's feet to be separated from the cylinder 21. If the staff is electrocuted, the staff's legs will straighten under the stimulation of the electric current and thus be separated from the cylinder 21. At that time, the device will immediately cut off the power, thereby ensuring the safety of the staff.

The staff steps on the cylinder 21 downward, driving the mounting frame 20 and the toothed plate 24 to move downward through the cylinder 21. The toothed plate 24 cooperates with the gear 27 to drive the rotating shaft 1 26. The rotating shaft 1 26 cooperates with the two bevel gears 29 to rotate the rotating shaft 2 28 and the driving rod 30. The driving rod 30 drives the second wiring assembly 13 to move and separate it from the first wiring assembly 9.

The friction plate 31 is fixedly mounted on the mounting frame 20 , and the bottom of the friction plate 31 is a plane.

The bottom of the mounting frame 20 corresponds to the upper side of the safety switch 23 , and the safety switch 23 is fixed on the operating table 1 through the support plate 22 .

A fixing assembly 3 is provided on the operating table 1 for fixing the belt testing device. The fixing assembly 3 includes a lead screw 6 and a guide plate 5. The lead screw 6 is vertically rotatably arranged on the upper surface of the operating table 1, and a turning handle 7 is arranged on the upper end of the lead screw 6. The guide plate 5 is vertically arranged on the operating table 1. A pressing plate 4 is slidably arranged on the guide plate 5. The pressing plate 4 is parallel to the surface of the operating table 1, and the pressing plate 4 is threadedly connected to the lead screw 6.

The device under test can be fixed on the operating table 1 through the fixing component 3 to prevent the device from moving during the test. By rotating the lead screw 6, the lead screw 6 cooperates with the guide plate 5 to drive the pressure plate 4 to move. The pressure plate 4 moves downward and cooperates with the surface of the operating table 1 to fix the device under test.

With the above structure, the device to be tested is placed on the operating table 1, the first wiring assembly 9 is electrically connected to the test device, and the worker steps on the lifting assembly 16 downward to drive the rotating assembly 17 through the lifting assembly 16, so that the rotating assembly 17 rotates the second wiring assembly 13, so that the second wiring assembly 13 is electrically connected to the first wiring assembly 9;

At the same time, the lifting component 16 can press the safety switch 23 downward to close the safety switch 23, and then operate the voltage tester 8 to make the voltage tester 8 output high voltage electricity to the test equipment. The staff releases the lifting component 16, and the lifting component 16 will automatically rise, releasing the safety switch 23 to cut off the power to the voltage tester 8. At the same time, the lifting component 16 will drive the rotating component 17 to reverse, so that the first wiring component 9 is disconnected from the second wiring component 13, thereby cutting off the electrical connection between the voltage tester 8 and the equipment under test, and completely stopping the test, which can ensure that the power supply is completely cut off.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A preventive test device for electrical equipment in whole plant is characterized in that: the voltage-resistant test device comprises an operation table (1), wherein a voltage-resistant tester (8) and a first wiring assembly (9) for electrically connecting equipment to be tested are arranged on the operation table (1), a second wiring assembly (13) is electrically connected to the output end of the voltage-resistant tester (8), and the second wiring assembly (13) is in contact with the first wiring assembly (9) to realize electrical connection;

A rotating assembly (17) for rotating the second wiring assembly (13) is arranged on the operating table (1);

The operation table (1) is provided with a lifting assembly (16) for driving the rotating assembly (17) to rotate the second wiring assembly (13) so as to separate the second wiring assembly (13) from the first wiring assembly (9);

The operation panel (1) bottom is provided with safety switch (23), and safety switch (23) are connected with withstand voltage tester (8) electricity, when lifting unit (16) moves down, can drive rotation subassembly (17) and rotate second wiring subassembly (13), make second wiring subassembly (13) and first wiring subassembly (9) contact, can press safety switch (23) simultaneously, make withstand voltage tester (8) circular telegram.

2. The plant-wide electrical equipment preventive test device according to claim 1, wherein: the four corners of the bottom of the operating platform (1) are respectively provided with universal wheels (2), and the lifting assembly (16) is provided with friction plates (31) for contacting with the ground to stabilize the operating platform (1).

3. The plant-wide electrical equipment preventive test device according to claim 1, wherein: the first wiring assembly (9) comprises a first mounting plate (10), the first mounting plate (10) is fixedly arranged on the operating platform (1), two first conductive sheets (11) are arranged on the first mounting plate (10), and the first conductive sheets (11) are electrically connected with conductive clips (12) through wires.

4. A plant-wide electrical equipment preventive test apparatus according to claim 3, wherein: the second wiring assembly (9) comprises a second mounting plate (15), two conducting strips II (14) matched with the first conducting strips (11) are arranged on the second mounting plate (15), and the two conducting strips II (14) are electrically connected with the anode and the cathode of the voltage withstanding tester (8) through wires respectively.

5. The plant-wide electrical equipment preventive test device according to claim 4, wherein: the rotating assembly (17) comprises a first rotating shaft (26) and a second rotating shaft (28), the second rotating shaft (28) is vertically arranged on the operating platform (1) in a rotating mode, a driving rod (30) is fixedly arranged at the upper end of the second rotating shaft (28), a second mounting plate (15) is fixedly arranged on the driving rod (30), two fixing plates (25) are arranged on the operating platform (1), a first rotating shaft (26) is arranged between the two fixing plates (25) in a rotating mode, a gear (27) is fixedly arranged on the surface of the first rotating shaft (26), bevel gears (29) are arranged on the first rotating shaft (26) and the second rotating shaft (28), and the two bevel gears (29) are meshed.

6. The plant-wide electrical equipment preventive test device according to claim 5, wherein: lifting assembly (16) are including two guide bars (18), guide bar (18) are vertical to be set up on operation panel (1), and slide between two guide bars (18) is provided with mounting bracket (20), vertical pinion rack (24) that are provided with on mounting bracket (20), and pinion rack (24) and gear (27) meshing, guide bar (18) surface cover is equipped with extension spring (19), extension spring (19) both ends are fixed with mounting bracket (20) and operation panel (1) respectively.

7. The plant-wide electrical equipment preventive test device according to claim 6, wherein: the mounting frame (20) is rotatably provided with a cylinder (21) for stepping.

8. The plant-wide electrical equipment preventive test device according to claim 6, wherein: the friction plate (31) is fixedly arranged on the mounting frame (20), and the bottom of the friction plate (31) is a plane.

9. The plant-wide electrical equipment preventive test device according to claim 6, wherein: the bottom of the mounting frame (20) corresponds to the upper side of the safety switch (23), and the safety switch (23) is fixed on the operating platform (1) through the supporting plate (22).

10. The plant-wide electrical equipment preventive test device according to claim 1, wherein: be provided with fixed subassembly (3) on operation panel (1) for fixed band test equipment, fixed subassembly (3) are including lead screw (6) and deflector (5), vertical rotation of lead screw (6) sets up at operation panel (1) upper surface, and lead screw (6) upper end is provided with changes handle (7), deflector (5) are vertical to be set up on operation panel (1), slide on deflector (5) and be provided with clamp plate (4), clamp plate (4) are on a parallel with operation panel (1) surface, clamp plate (4) and lead screw (6) threaded connection.