Direct-current resistance testing equipment

Abstract

The utility model relates to the technical field of test equipment, in particular to direct-current resistance test equipment, which comprises a protection box, a cover plate protection mechanism is arranged at the top of the protection box, test equipment is arranged in the protection box, an internal protection mechanism is arranged between the protection box and the test equipment, and connecting plates are arranged at two ends of the protection box. According to the utility model, the test equipment is arranged in the protection box, so that the test equipment has external protection capability during testing, and the cover plate protection mechanism is arranged to play a protection role under the condition that normal test operation is ensured; by arranging the internal protection mechanism, the testing equipment can have high stability during testing, the grounding protection purpose is achieved, by arranging the supporting mechanism and the buffering mechanism, the device can have the transferring capacity, and the stability of the testing equipment is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a direct current resistance testing device. Background Art

[0002] The DC resistance tester is an intelligent instrument specially used to measure the DC resistance of inductive equipment such as transformers, motors, and mutual inductors. It can measure various inductive loads, compensate for the current inertia of large inductive equipment, and quickly make the test current reach a stable value. It is an essential instrument for power, water conservancy, railways, metallurgy, coal mining, chemical industry and other systems, as well as transformer and motor manufacturers. The self-checking and automatic calibration functions reduce the difficulty of using and maintaining the instrument. It is an ideal equipment for measuring the DC resistance of transformer windings and high-power inductive equipment.

[0003] After searching, the patent publication number is CN 217049645 U, which is an intelligent DC resistance test device, including a housing, a motor and a first sleeve, the inner wall of the housing is installed with a support plate, the outer wall of the support plate is installed with a motor, the top of the housing is installed with a machine door through a bearing, the top of the machine door is penetrated by a first sleeve, and the output end of the motor is installed with a rotating rod. In the process of implementing this solution, it is found that the following problems in the prior art have not been well solved: no relevant protection mechanism is set when performing resistance testing, resulting in certain dangers during the test. Therefore, it is urgent to design a DC resistance test device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a DC resistance testing device to solve the problems raised in the above background technology.

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

[0006] A DC resistance testing device comprises a protective box, a cover protection mechanism is arranged on the top of the protective box, a testing device is arranged inside the protective box, an internal protection mechanism is arranged between the protective box and the testing device, connecting plates are arranged at both ends of the protective box, a side plate is arranged at one end of the connecting plate, a height adjustment mechanism is arranged between the side plate and the connecting plate, and a supporting buffer mechanism is arranged at the bottom of the side plate.

[0007] Preferably, the cover plate protection mechanism includes a cover plate and a sealing plate, the cover plate and the protection box are rotatably connected, a transparent plate is fixedly connected to the outer wall of the cover plate, a rubber glove is fixedly connected to the outer wall of the cover plate, the sealing plate is located on the top of the rubber glove, and the sealing plate and the cover plate are rotatably connected.

[0008] Preferably, the internal protection mechanism includes a first spring and a first hydraulic rod, the top and bottom of the first spring and the first hydraulic rod are respectively fixedly connected to the test equipment and the inner wall of the protection box, the bottom of the test equipment is fixedly connected to a grounding wire, and the bottom of the grounding wire is fixedly connected to a counterweight grounding block.

[0009] Preferably, a second spring and a second hydraulic rod are fixedly connected between the connecting plate and the protection box.

[0010] Preferably, the height adjustment mechanism includes a slider and a movable block, a movable groove is opened on the outer wall of the side plate, the movable block is located inside the movable groove, a sliding groove is opened on the inner wall of the movable groove, the slider is slidably connected to the inner wall of the sliding groove, a threaded screw is threadedly connected to the outer wall of the slider, the slider and the movable block are fixedly connected, and an adjustment rod is fixedly connected between the connecting plate and the movable block.

[0011] Preferably, the adjusting rod and the movable block are rotatably connected, the outer wall of the adjusting rod is fixedly connected to a limiting plate, and the outer wall of the limiting plate is threadedly connected with a bolt.

[0012] Preferably, the support buffer mechanism includes a third spring and a third hydraulic rod, a bottom plate is provided at the bottom of the side plate, the top and bottom of the third spring and the third hydraulic rod are fixedly connected to the side plate and the bottom plate respectively, and a plurality of pulleys are fixedly connected to the bottom of the bottom plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, by arranging the test equipment inside the protection box, the test equipment can have external protection capability when conducting the test; by arranging the cover plate protection mechanism, the normal test operation can be ensured to play a protective role; by arranging the internal protection mechanism, the test equipment can have high stability when conducting the test and achieve the purpose of grounding protection; by arranging the support mechanism and buffer mechanism, the device can have transfer capability and further improve the stability of the test equipment;

[0015] In the utility model, a threaded screw is provided to drive the sliding block to rise and fall along the sliding groove, thereby driving the movable block and its protective box to rise and fall, and finally the device can be made to have the ability to adjust the height according to the height of the operator. By providing a limit plate on the outer wall of the adjusting rod, the adjusting rod can be limited by bolts, so that the inclination angle of the protective box can be adjusted, further improving the convenience of test operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic diagram of the overall structure of a DC resistance testing device.

[0017] Figure 2 The figure is a schematic diagram of the partial main structure of a DC resistance testing device.

[0018] Figure 3 The figure is a schematic diagram of the bottom main structure of a DC resistance testing device.

[0019] Figure 4 The figure is a schematic diagram of the top main seat structure of a DC resistance testing device.

[0020] In the figure: 1. protective box; 2. connecting plate; 3. first spring; 4. testing equipment; 5. rubber gloves; 6. cover plate; 7. bottom plate; 8. side plate; 9. first hydraulic rod; 10. threaded screw; 11. movable groove; 12. slide groove; 13. bolt; 14. adjusting rod; 15. limit plate; 16. movable block; 17. slider; 18. second spring; 19. second hydraulic rod; 20. third spring; 21. third hydraulic rod; 22. grounding wire; 23. counterweight grounding block; 24. pulley; 25. sealing plate; 26. transparent plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 In an embodiment of the utility model, a DC resistance testing device includes a protective box 1, a cover protection mechanism is arranged on the top of the protective box 1, a testing device 4 is arranged inside the protective box 1, an internal protection mechanism is arranged between the protective box 1 and the testing device 4, connecting plates 2 are arranged at both ends of the protective box 1, a side plate 8 is arranged at one end of the connecting plate 2, a height adjustment mechanism is arranged between the side plate 8 and the connecting plate 2, and a supporting buffer mechanism is arranged at the bottom of the side plate 8. By arranging the testing device 4 to be located inside the protective box 1, external protection capability can be provided during testing. By arranging the cover protection mechanism, a protective effect can be played under normal test operation. By arranging the internal protection mechanism, the testing device 4 can have high stability during testing and achieve the purpose of grounding protection. By arranging the supporting mechanism and buffer mechanism, the device can have transfer capability and further improve the stability of the testing device 4.

[0023] The cover plate protection mechanism includes a cover plate 6 and a sealing plate 25, the cover plate 6 and the protection box 1 are rotatably connected, the outer wall of the cover plate 6 is fixedly connected with a transparent plate 26, the outer wall of the cover plate 6 is fixedly connected with a rubber glove 5, the sealing plate 25 is located on the top of the rubber glove 5, and the sealing plate 25 and the cover plate 6 are rotatably connected. By setting the cover plate protection mechanism, it can ensure that the normal test operation is performed and play a protective role;

[0024] The internal protection mechanism includes a first spring 3 and a first hydraulic rod 9. The top and bottom of the first spring 3 and the first hydraulic rod 9 are respectively fixedly connected to the test device 4 and the inner wall of the protection box 1. The bottom of the test device 4 is fixedly connected to a grounding wire 22. The bottom of the grounding wire 22 is fixedly connected to a counterweight grounding block 23. By setting the internal protection mechanism, the test device 4 can have high stability during testing and achieve the purpose of grounding protection.

[0025] A second spring 18 and a second hydraulic rod 19 are fixedly connected between the connecting plate 2 and the protection box 1, so that the protection box 1 and its test equipment 4 have higher stability in the horizontal direction;

[0026] The height adjustment mechanism includes a slider 17 and a movable block 16. A movable groove 11 is provided on the outer wall of the side plate 8. The movable block 16 is located inside the movable groove 11. A slide groove 12 is provided on the inner wall of the movable groove 11. The inner wall of the slide groove 12 is slidably connected with the slider 17. The outer wall of the slider 17 is threadedly connected with a threaded screw 10. The slider 17 and the movable block 16 are fixedly connected. An adjustment rod 14 is fixedly connected between the connecting plate 2 and the movable block 16. By setting the threaded screw 10 to drive the slider 17 to move up and down along the slide groove 12, the movable block 16 and its protective box 1 can be driven to move up and down, and finally the device can be made to have the ability to adjust the height according to the height of the operator;

[0027] The adjusting rod 14 and the movable block 16 are rotatably connected, the outer wall of the adjusting rod 14 is fixedly connected to the limiting plate 15, and the outer wall of the limiting plate 15 is threadedly connected with the bolt 13. By setting the limiting plate 15 on the outer wall of the adjusting rod 14, the adjusting rod 14 can be limited by the bolt 13, so that the inclination angle of the protective box 1 can be adjusted, further improving the convenience of the test operation;

[0028] The supporting buffer mechanism includes a third spring 20 and a third hydraulic rod 21. A bottom plate 7 is arranged at the bottom of the side plate 8. The top and bottom of the third spring 20 and the third hydraulic rod 21 are respectively fixedly connected to the side plate 8 and the bottom plate 7. A plurality of pulleys 24 are fixedly connected to the bottom of the bottom plate 7. By arranging the supporting mechanism and the buffer mechanism, the device can have transfer capability and further improve the stability of the testing equipment 4.

[0029] The working principle of the utility model is: by arranging the test equipment 4 to be located inside the protection box 1, it can have external protection capabilities when conducting tests, by arranging a cover protection mechanism, it can ensure that the normal test operation is carried out and play a protective role, by arranging an internal protection mechanism, the test equipment 4 can have high stability during testing and achieve the purpose of grounding protection, and by arranging a support mechanism and a buffer mechanism, the device can have transfer capabilities and further improve the stability of the test equipment 4.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A DC resistance test device, comprising a protection box (1), characterized in that: A cover protection mechanism is arranged on the top of the protection box (1), a test device (4) is arranged inside the protection box (1), an internal protection mechanism is arranged between the protection box (1) and the test device (4), connecting plates (2) are arranged at both ends of the protection box (1), a side plate (8) is arranged at one end of the connecting plate (2), a height adjustment mechanism is arranged between the side plate (8) and the connecting plate (2), and a support buffer mechanism is arranged at the bottom of the side plate (8).

2. A DC resistance test device according to claim 1, characterized in that: The cover plate protection mechanism comprises a cover plate (6) and a sealing plate (25); the cover plate (6) and the protection box (1) are rotatably connected; a transparent plate (26) is fixedly connected to the outer wall of the cover plate (6); a rubber glove (5) is fixedly connected to the outer wall of the cover plate (6); the sealing plate (25) is located on the top of the rubber glove (5); and the sealing plate (25) and the cover plate (6) are rotatably connected.

3. A DC resistance test device according to claim 1, characterized in that: The internal protection mechanism comprises a first spring (3) and a first hydraulic rod (9); the top and bottom of the first spring (3) and the first hydraulic rod (9) are respectively fixedly connected to the test equipment (4) and the inner wall of the protection box (1); the bottom of the test equipment (4) is fixedly connected to a grounding wire (22); the bottom of the grounding wire (22) is fixedly connected to a counterweight grounding block (23).

4. A DC resistance test device according to claim 1, characterized in that: A second spring (18) and a second hydraulic rod (19) are fixedly connected between the connecting plate (2) and the protection box (1).

5. A DC resistance test device according to claim 4, characterized in that: The height adjustment mechanism comprises a slider (17) and a movable block (16); a movable groove (11) is provided on the outer wall of the side plate (8); the movable block (16) is located inside the movable groove (11); a slide groove (12) is provided on the inner wall of the movable groove (11); the slider (17) is slidably connected to the inner wall of the slide groove (12); a threaded screw (10) is threadedly connected to the outer wall of the slider (17); the slider (17) and the movable block (16) are fixedly connected; and an adjustment rod (14) is fixedly connected between the connecting plate (2) and the movable block (16).

6. A DC resistance test device according to claim 5, characterized in that: The adjusting rod (14) and the movable block (16) are rotatably connected, the outer wall of the adjusting rod (14) is fixedly connected to a limiting plate (15), and the outer wall of the limiting plate (15) is threadedly connected with a bolt (13).

7. A DC resistance test device according to claim 1, characterized in that: The support buffer mechanism comprises a third spring (20) and a third hydraulic rod (21); a bottom plate (7) is arranged at the bottom of the side plate (8); the top and bottom of the third spring (20) and the third hydraulic rod (21) are respectively fixedly connected to the side plate (8) and the bottom plate (7); and a plurality of pulleys (24) are fixedly connected to the bottom of the bottom plate (7).

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