Insulation resistance detection device

Abstract

The utility model discloses an insulation resistance detection device which comprises a base, a supporting column is vertically and fixedly arranged on the base, a first sliding groove is formed in the supporting column in the length direction of the supporting column, a sliding rod is arranged in the first sliding groove in a sliding mode, a first threaded rod is rotatably arranged in the first sliding groove, and a first motor is fixedly arranged on the supporting column. The first motor is fixedly connected with the first threaded rod, the first threaded rod is in threaded connection with the sliding rod, and the sliding rod is provided with a detection mechanism for detecting insulation resistance; two sliding plates are arranged on the base in a sliding mode, clamping plates are arranged on the two sliding plates, a third threaded rod is rotationally arranged in the base, the screwing directions of threads on the two sides of the third threaded rod are opposite, the two sides of the third threaded rod are in threaded connection with the corresponding sliding plates, and a transmission assembly is arranged between the third threaded rod and the first threaded rod. The first threaded rod drives the third threaded rod to rotate through the transmission assembly. The resistor is prevented from moving, and dislocation of a detection point of the resistor and the detection pen is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance detection, in particular to an insulation resistance detection device. Background Art

[0002] Insulation resistance is the most basic insulation indicator for electrical equipment and electrical lines. For the acceptance test of low-voltage electrical equipment, the insulation resistance of motors, distribution equipment and distribution lines at room temperature should not be less than 0.5MΩ (for equipment and lines in operation, the insulation resistance should not be less than 1MΩ / kV). The insulation resistance of low-voltage electrical appliances and their connecting cables and secondary circuits should generally not be less than 1MΩ; in a relatively humid environment, it should not be less than 0.5MΩ; the insulation resistance of the secondary circuit busbar should not be less than 10MΩ. Insulation detection technology is an important technology related to personal safety. In order to ensure the safety of electricity use, an insulation resistance detection device is required to detect the insulation resistance.

[0003] A capacitor insulation resistance detection device is disclosed in a Chinese patent document with publication number CN214669205U, including a multimeter base, one end of which is fixedly connected to a numerical control panel, a capacitor detection placement rack for positioning a capacitor is fixed on the top of the multimeter base, a lifting detection adaptation structure for adjusting the detection height to adapt to the height of the capacitor is fixed on one side of the multimeter base, and a lateral synchronous detection structure for adapting to the detection of the end-to-end distance of the capacitor is fixed on one end of the lifting detection adaptation structure. Through the coordinated design of the lifting detection adaptation structure and the lateral synchronous detection structure, the device is easy to complete the multi-directional automatic adaptation adjustment in the capacitance detection process.

[0004] The disadvantage of the above disclosed solution is that the capacitor to be tested is placed on the capacitor testing rack and then the capacitor is tested. Since the capacitor is not fixed, the capacitor is easy to move during the capacitor testing process, resulting in misalignment between the testing point and the testing pen, thereby affecting the accuracy of the test data. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an insulation resistance detection device. Two symmetrically arranged slides are slidably arranged on the top of the base, and clamping plates are arranged on the opposite sides of the two slides. The two clamping plates clamp and fix the resistance to be detected, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insulation resistance detection device, comprising a base, a support column is vertically fixedly arranged on the base, a first slide groove is opened on the support column along its length direction, a slide rod is slidably arranged in the first slide groove, a first threaded rod is rotatably arranged in the first slide groove, a first motor is fixedly arranged on the top of the support column, an output end of the first motor is fixedly connected to the first threaded rod, the first threaded rod passes through the slide rod and is threadedly connected to the slide rod, and a detection mechanism for insulation resistance detection is arranged on the slide rod; two symmetrically arranged slide plates are slidably arranged on the top of the base, a clamping plate is arranged on opposite sides of the two slide plates, a third threaded rod is rotatably arranged in the base, the threads on both sides of the third threaded rod are opposite, and both sides of the third threaded rod are threadedly connected to the corresponding slide plates, a transmission assembly is arranged between the third threaded rod and the first threaded rod, and the first threaded rod drives the third threaded rod to rotate through the transmission assembly.

[0007] Furthermore, the detection mechanism includes a slide plate, which is fixedly connected to the slide rod. Two symmetrically arranged slide blocks are slidably arranged on one side of the slide plate away from the support column. Detection pens are provided at the bottom of the two slide blocks, and a driving component for adjusting the distance between the two slide blocks is provided on the slide plate.

[0008] Furthermore, the driving assembly includes a second motor, which is fixedly arranged on one side of the slide plate. A third slide groove is symmetrically opened on the side of the slide plate away from the support column. The third slide groove is slidably connected to the corresponding slider. A second threaded rod is rotatably arranged in the slide plate. The threads on both sides of the second threaded rod have opposite rotation directions, and both sides of the second threaded rod are threadedly connected to the corresponding slider.

[0009] Furthermore, a third motor is fixedly provided at the bottom of the two sliding blocks, a rotating plate is fixedly provided at the output end of the third motor, and the rotating plate is fixedly connected to the corresponding detection pen.

[0010] Furthermore, the transmission assembly includes a first bevel gear and a second bevel gear, the first bevel gear is fixedly sleeved on the bottom of the first threaded rod, the second bevel gear is fixedly sleeved on one end of the third threaded rod, and the second bevel gear is meshingly connected with the first bevel gear.

[0011] Furthermore, a sliding shaft is slidably arranged on both slide plates, one end of the sliding shaft is fixedly mounted with the corresponding clamping plate, a clamping block is fixedly arranged on the other end of the sliding shaft, a spring is sleeved on the sliding shaft, and the spring is located between the clamping plate and the slide plate.

[0012] Furthermore, a placement block is symmetrically fixedly arranged on the base, and the placement block is located between the two slide plates.

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

[0014] Since the top sliding part of the base is provided with two symmetrically arranged slide plates, the two slide plates are provided with clamping plates on opposite sides. The first motor drives the first threaded rod to rotate, the first threaded rod drives the slide bar to move downward along the first slide groove, the slide bar drives the slide plate to move downward, the slide plate drives the slider to move downward, the slider drives the detection pen to move downward and gradually approach the resistor to be detected. The first threaded rod rotates while driving the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the third threaded rod to rotate, the third threaded rod rotates and drives the two slide plates to move toward each other, the two slide plates drive the two clamping plates to move toward each other, the two clamping plates gradually approach the resistor to be detected and clamp the resistor to be detected. Therefore, in the process of detecting the resistor, the resistor is prevented from moving, and the detection point of the resistor is prevented from being misaligned with the detection pen, thereby affecting the accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0017] Figure 3 This is an assembly diagram of the third motor and the detection pen of the utility model structure.

[0018] In the figure: 1. base; 2. support column; 3. first motor; 4. first slide groove; 5. first threaded rod; 6. slide rod; 7. slide plate; 8. second motor; 9. second threaded rod; 10. slider; 11. third motor; 12. rotating plate; 13. detection pen; 14. first bevel gear; 15. second bevel gear; 16. third threaded rod; 17. second slide groove; 18. slide plate; 19. sliding shaft; 20. spring; 21. clamping plate; 22. placement block. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 3The utility model provides a technical solution: an insulation resistance detection device, including a base 1, a support column 2 is vertically fixedly installed on one side of the base 1, a first slide groove 4 is opened on one side of the support column 2 along its length direction, and a first threaded rod 5 is rotatably installed in the first slide groove 4. The top end of the first threaded rod 5 is rotatably installed with the top wall of the first slide groove 4, and the bottom end of the first threaded rod 5 is rotatably installed with the bottom wall of the first slide groove 4. A first motor 3 is fixedly installed on the top of the support column 2, and the output end of the first motor 3 passes through the support column 2 downward and is fixedly installed with the top end of the first threaded rod 5. A slide rod 6 is slidably installed in the first slide groove 4, and the first threaded rod 5 passes through the slide rod 6 and is threadedly connected to the slide rod 6.

[0021] A detection mechanism for detecting insulation resistance is installed on the slide bar 6. The detection mechanism includes a slide plate 7, which is fixedly mounted with the slide bar 6, and the slide plate 7 is arranged horizontally and perpendicular to the slide bar 6. Two symmetrically arranged sliders 10 are slidably mounted on the side of the slide plate 7 away from the support column 2, and a third motor 11 is fixedly mounted on the bottom of the two sliders 10. The output end of the third motor 11 passes through the corresponding slider 10 and is fixedly mounted with a rotating plate 12, and a detection pen 13 is fixedly mounted on one side of the rotating plate 12. The two detection pens 13 are divided into a positive detection pen and a negative detection pen.

[0022] A driving assembly for adjusting the distance between the two sliders 10 is installed on the slide plate 7. The driving assembly includes a second motor 8, which is fixedly installed on one side of the slide plate 7. A third slide groove is symmetrically provided on the side of the slide plate 7 away from the support column 2, and the third slide groove is slidably installed with the corresponding slider 10. A second threaded rod 9 is rotatably installed in the slide plate 7 along its length direction, and the second threaded rod 9 passes through the two sliders 10 in sequence, and the threads on both sides of the second threaded rod 9 are in opposite directions, and the two sides of the second threaded rod 9 are threadedly connected with the corresponding slider 10.

[0023] The upper surface of the base 1 is provided with two symmetrically arranged second slide grooves 17, in which slide plates 18 are slidably installed, and clamp plates 21 are installed on opposite sides of the two slide plates 18. Sliding shafts 19 are installed on the two slide plates 18, one end of the sliding shaft 19 is fixedly fitted with the corresponding clamp plate 21, the other end of the sliding shaft 19 passes through the corresponding slide plate 18 and is fixedly installed with a clamping block, and the outer periphery of the sliding shaft 19 is sleeved with a spring 20, and the spring 20 is located between the clamp plate 21 and the slide plate 18. One end of the spring 20 is fixedly connected to the clamp plate 21, and the other end of the spring 20 is fixedly connected to the slide plate 18. When the spring 20 is in a natural state, the clamping block fits the corresponding slide plate 18. A placement block 22 is symmetrically fixedly installed on the upper surface of the base 1, and the placement block 22 is located between the two slide plates 18.

[0024] A third threaded rod 16 is rotatably mounted in the base 1, and the third threaded rod 16 is arranged along the length direction of the second slide groove 17. The third threaded rod 16 passes through two slide plates 18 in sequence, and the threads on both sides of the third threaded rod 16 are rotated in opposite directions, and both sides of the third threaded rod 16 are threadedly connected to the corresponding slide plates 18. A transmission assembly is installed between the third threaded rod 16 and the first threaded rod 5, and the first threaded rod 5 drives the third threaded rod 16 to rotate through the transmission assembly.

[0025] The transmission assembly includes a first bevel gear 14 and a second bevel gear 15 . The first bevel gear 14 is fixedly sleeved on the bottom of the first threaded rod 5 . The second bevel gear 15 is fixedly sleeved on one end of the third threaded rod 16 close to the support column 2 . The second bevel gear 15 is meshedly connected with the first bevel gear 14 .

[0026] As a supplementary embodiment, the driving assembly includes two second motors 8, and the two ends of the slide plate 7 are fixedly mounted with the corresponding second motors 8. A third slide groove is symmetrically provided on one side of the slide plate 7 away from the support column 2, and the third slide groove is slidably mounted with the corresponding slider 10. In addition, a second threaded rod 9 is rotatably mounted in the third slide groove along its length direction, and the second threaded rod 9 passes through the corresponding slider 10 and is threadedly connected with the corresponding slider 10. The second threaded rod 9 is driven to rotate by the two motors 8 respectively, and the second threaded rod 9 drives the corresponding slider 10 to move, so that the moving distance of the detection pen 13 can be controlled individually, thereby increasing the flexibility of the detection pen 13 in resistance detection.

[0027] The working principle of an insulation resistance detection device provided by the utility model is as follows:

[0028] When in use, first place the resistor to be detected on the placement block 22, start the first motor 3, the first motor 3 drives the first threaded rod 5 to rotate, the first threaded rod 5 drives the slide rod 6 to move downward along the first slide groove 4, the slide rod 6 drives the slide plate 7 to move downward, the slide plate 7 drives the slider 10 to move downward, the slider 10 drives the detection pen 13 to move downward and gradually approach the resistor to be detected.

[0029] The first threaded rod 5 rotates while driving the first bevel gear 14 to rotate, the first bevel gear 14 drives the second bevel gear 15 to rotate, the second bevel gear 15 drives the third threaded rod 16 to rotate, the third threaded rod 16 rotates and drives the two slides 18 to move toward each other, the two slides 18 drive the two clamps 21 to move toward each other, the two clamps 21 gradually approach the resistor to be detected and clamp the resistor to be detected. In the process of detecting the resistor, the resistor is prevented from moving, and the detection point of the resistor is misaligned with the detection pen 13, thereby affecting the accuracy of the detection data.

[0030] Since the sliding shaft 19 is slidably connected with the slide plate 18, and the spring 20 is sleeved on the sliding shaft 19, when the two clamping plates 21 clamp the resistor, the first threaded rod 15 can continue to drive the detection pen 13 to move downward, the first threaded rod 15 drives the third threaded rod 16 to rotate, and the third threaded rod 16 drives the two slide plates 18 to move toward each other, so that the two clamping plates 21 respectively drive the corresponding sliding shaft 19 to move away from each other and compress the corresponding spring 20 at the same time. In this way, it can adapt to resistors of different diameters and increase the practicality of the device.

[0031] By controlling the forward and reverse rotation of the second motor 8, the second motor 8 drives the second threaded rod 9 to rotate, and the second threaded rod 9 drives the two sliders 10 to move toward or away from each other, thereby adjusting the distance between the two sliders 10, and then adjusting the distance between the two detection pens 13 until it corresponds to the detection point of the resistor to be detected on the placement block 22, and the resistor is detected.

[0032] If the detection point is inclined or on the side, the third motor 11 can be started, the third motor 11 drives the rotating plate 12 to rotate, and the rotating plate 12 drives the detection pen 13 to rotate, so as to adjust the angle of the detection pen 13 and perform multi-angle measurement.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An insulation resistance detection device, comprising a base (1), characterized in that: A support column (2) is vertically fixedly arranged on the base (1), a first slide groove (4) is provided on the support column (2) along its length direction, a slide rod (6) is slidably arranged in the first slide groove (4), a first threaded rod (5) is rotatably arranged in the first slide groove (4), a first motor (3) is fixedly arranged on the top of the support column (2), an output end of the first motor (3) is fixedly connected to the first threaded rod (5), the first threaded rod (5) passes through the slide rod (6) and is threadedly connected to the slide rod (6), and a detection device for detecting insulation resistance is arranged on the slide rod (6). Mechanism; two symmetrically arranged slide plates (18) are slidably arranged on the top of the base (1), and clamp plates (21) are arranged on opposite sides of the two slide plates (18); a third threaded rod (16) is rotatably arranged inside the base (1), the threads on both sides of the third threaded rod (16) are rotated in opposite directions, and both sides of the third threaded rod (16) are threadedly connected to the corresponding slide plates (18); a transmission assembly is arranged between the third threaded rod (16) and the first threaded rod (5), and the first threaded rod (5) drives the third threaded rod (16) to rotate through the transmission assembly.

2. The insulation resistance detection device according to claim 1, characterized in that: The detection mechanism comprises a slide plate (7), the slide plate (7) being fixedly connected to a slide rod (6), two symmetrically arranged slide blocks (10) being slidably arranged on a side of the slide plate (7) away from the support column (2), a detection pen (13) being arranged at the bottom of each of the two slide blocks (10), and a driving component for adjusting the distance between the two slide blocks (10) being arranged on the slide plate (7).

3. The insulation resistance detection device according to claim 2, characterized in that: The driving assembly comprises a second motor (8), the second motor (8) is fixedly arranged on one side of the slide plate (7), a third slide groove is symmetrically opened on the side of the slide plate (7) away from the support column (2), the third slide groove is slidably connected to the corresponding slider (10), a second threaded rod (9) is rotatably arranged in the slide plate (7), the threads on both sides of the second threaded rod (9) are rotated in opposite directions, and the two sides of the second threaded rod (9) are threadedly connected to the corresponding slider (10).

4. The insulation resistance detection device according to claim 2, characterized in that: A third motor (11) is fixedly arranged at the bottom of each of the two sliding blocks (10); a rotating plate (12) is fixedly arranged at the output end of the third motor (11); and the rotating plate (12) is fixedly connected to a corresponding detection pen (13).

5. The insulation resistance detection device according to claim 1, characterized in that: The transmission assembly comprises a first bevel gear (14) and a second bevel gear (15); the first bevel gear (14) is fixedly sleeved on the bottom of the first threaded rod (5); the second bevel gear (15) is fixedly sleeved on one end of the third threaded rod (16); the second bevel gear (15) is meshingly connected with the first bevel gear (14).

6. The insulation resistance detection device according to claim 1, characterized in that: A sliding shaft (19) is slidably provided on each of the two slide plates (18), one end of the sliding shaft (19) is fixedly matched with a corresponding clamping plate (21), a clamping block is fixedly provided on the other end of the sliding shaft (19), a spring (20) is sleeved on the sliding shaft (19), and the spring (20) is located between the clamping plate (21) and the slide plate (18).

7. The insulation resistance detection device according to claim 1, characterized in that: The base (1) is symmetrically and fixedly provided with a placement block (22), and the placement block (22) is located between the two slide plates (18).

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