Insulator resistance measuring device

Abstract

The present invention provides an insulator resistance measuring device, comprising: a box body, a housing cavity inside the box body, the housing cavity is used to accommodate a measuring assembly and an insulator, and a measuring instrument is arranged on the top of the box body; the measuring assembly comprises two clamping components, each of which comprises a clamping disk, a conductive rod and a support member, two support members are arranged on the clamping disk, each support member is used to contact the circumferential side wall of the insulator, and the two support members are movably arranged toward each other along a third preset direction, so that the two support members clamp the insulator and drive the insulator to move to a measuring position; one end of the conductive rod is electrically connected to the measuring instrument, the conductive rod is movably arranged on the clamping disk, and the two clamping components are movably arranged toward each other along a first preset direction, so that the conductive rod moves along the radial direction of the clamping disk until the other end of the conductive rod abuts against the insulator at the measuring position. The present invention solves the problem that the measuring instrument in the prior art has a large measurement error for the insulator resistance.

Description

Technical Field

[0001] The invention relates to the technical field of insulator resistance measurement, and in particular to an insulator resistance measurement device. Background Art

[0002] The main function of an insulator is to achieve electrical insulation. Before use, the insulator needs to be tested for electrical, physical and environmental conditions to measure its resistance performance. In order to accurately measure the resistance value of the insulator, various parameters of the natural environment are usually simulated, and the insulator to be tested is placed in a simulated natural environment, and the resistance of the insulator is measured using an insulator resistance measuring instrument.

[0003] However, when an insulator resistance meter is conventionally used to measure insulators, two measuring needles are placed on the hardware at both ends of the insulator. This connection method is not reliable. If the insulator shakes, it will easily cause the insulator and the measuring needle to separate, resulting in large measurement errors. Summary of the invention

[0004] The main purpose of the present invention is to provide an insulator resistance measuring device to solve the problem that the measuring instrument in the prior art has a large measurement error for the insulator resistance.

[0005] In order to achieve the above-mentioned purpose, the present invention provides an insulator resistance measuring device, comprising: a box body, a housing having a housing cavity inside, the housing cavity being used to accommodate a measuring assembly and an insulator, the insulator extending along a first preset direction, and a measuring instrument being arranged on the top of the box body; the measuring assembly comprising two clamping components, the two clamping components being used to clamp the two ends of the insulator respectively; each clamping component comprising a clamping disk, a conductive rod and a support member, two support members being movably arranged on the clamping disk, each support member being used to contact the circumferential side wall of the insulator, the two support members being movably arranged towards each other along a third preset direction, so that the two support members clamp the insulator and drive the insulator to move to a measuring position; one end of the conductive rod is electrically connected to the measuring instrument, the conductive rod is movably arranged on the clamping disk, and the two clamping components are movably arranged towards each other along the first preset direction, so that the conductive rod moves along the radial direction of the clamping disk until the other end of the conductive rod abuts against the insulator at the measuring position; wherein, when the insulator is at the measuring position, the central axis of the insulator and the central axis of each clamping disk are arranged to coincide with each other.

[0006] Furthermore, the clamping component also includes a first slider, two first curved plates and two first transmission rods, the two first curved plates and the two first transmission rods are arranged in a one-to-one correspondence, the two first curved plates and the two support members are arranged in a one-to-one correspondence, each first curved plate is hinged to the corresponding support member, one end of each first transmission rod is hinged to the corresponding first curved plate, the other end of each first transmission rod is hinged to the first slider, and the first slider is arranged to be reciprocatingly movable along a second preset direction so that the first curved plate at the bottom and the first curved plate at the top move toward each other along a third preset direction.

[0007] Furthermore, each clamping plate is provided with a first guide groove and two second guide grooves, the first guide groove extends along a second preset direction, and each second guide groove extends along a third preset direction. The clamping component also includes two second sliders, the two second sliders are arranged one-to-one correspondingly to the two first arc-shaped plates, the two second sliders are arranged one-to-one correspondingly to the two second guide grooves, and each second slider is arranged on the corresponding first arc-shaped plate, so that each second guide groove guides the corresponding first arc-shaped plate by cooperating with the corresponding second slider; and the first slider and the first guide groove are cooperated so that the first guide groove guides the first slider.

[0008] Furthermore, the clamping component also includes a base, a first rack, a first gear and a rotating rod. The clamping plate can be movably arranged on the base. The base is provided with a first rack, the first rack extends along a second preset direction, the first gear and the first rack are meshed with each other, the central rotating shaft of the first gear is connected to one end of the rotating rod, the other end of the rotating rod is slidably connected to the outer arc surface of the first arc plate located at the bottom, and the first rack is reciprocatingly movably arranged along the second preset direction so that the rotating rod rotates around the axis of the first gear to drive the first arc plate to move along a third preset direction.

[0009] Furthermore, the measuring assembly also includes a guide rod, which extends along a first preset direction, at least one end of the guide rod passes through the cavity wall of the accommodating cavity, and a guide column is arranged on the first rack of each clamping component, and the guide column of each clamping component passes through the guide rod, and the guide rod is reciprocatingly movably arranged along a second preset direction, so that the guide rod drives the guide column and the first rack to move along the second preset direction.

[0010] Furthermore, each clamping component includes a first cylinder, a second cylinder and a third cylinder. The second cylinder is movably mounted on the first cylinder, the third cylinder is movably mounted on the second cylinder, the third cylinder is rotatably arranged around the axis of the third cylinder, the third cylinder is transmission-connected with the second cylinder, and the third cylinder is transmission-connected with the conductive rod. A pressure plate is movably arranged in the first cylinder, a connecting column is arranged on the pressure plate, the connecting column passes through the cylinder wall of the first cylinder and is connected to the second cylinder, so that when the two clamping components move toward each other along a first preset direction, the end of the insulator presses the pressure plate, so that the pressure plate drives the second cylinder to move along the first preset direction, so that the second cylinder drives the third cylinder to rotate, and so that the third cylinder drives the conductive rod to move in a direction toward the insulator.

[0011] Furthermore, a third slider is provided on the cylinder wall of the second cylinder, a thread groove is provided on the inner groove wall of the third cylinder, and the third slider can be movably inserted into the thread groove to move along the first preset direction through the second cylinder to drive the third cylinder to rotate.

[0012] Furthermore, an annular rack is provided on the circumferential outer wall of the third cylinder, and each clamping component also includes a third rack, a third gear and a fourth gear. The third rack extends in the radial direction of the clamping disk, and the third rack is movably provided on the clamping disk, and a conductive rod is provided on the third rack; the annular rack and the third gear are meshed with each other, the third gear and the fourth gear are transmission connected, and the fourth gear and the third rack are meshed with each other, so as to rotate around the axis of the third cylinder through the annular rack, thereby driving the third gear and the fourth gear to rotate, so that the third rack moves along the radial direction of the clamping disk toward the direction close to the insulator.

[0013] Furthermore, each clamping component also includes a protrusion, which is arranged on the clamping disk, and an insulating plate and an insulating rod are arranged on the protrusion. The protrusion extends along the radial direction of the clamping disk. The third rack is movably arranged on the protrusion, one end of the insulating plate is connected to the protrusion, the other end of the insulating plate is connected to one end of the insulating rod, the other end of the insulating rod is movably connected to the conductive rod, a spiral conductive wire is arranged in the insulating rod, one end of the spiral conductive wire is connected to the conductive rod, and the other end of the spiral conductive wire is electrically connected to the measuring instrument.

[0014] Furthermore, the clamping component also includes an elastic member, one end of the elastic member is connected to the axial cylinder wall of the first cylinder, and the other end of the elastic member is connected to the pressure plate, so that when the pressure plate moves in the direction away from the clamping disk, the elastic member is squeezed by the pressure plate, and the elastic deformation is restored by the elastic member to drive the pressure plate to move in the direction close to the clamping disk.

[0015] According to the technical solution of the present invention, an insulator resistance measuring device comprises: a box, a measuring instrument and a measuring assembly, wherein the measuring assembly comprises two clamping parts, each of which comprises a clamping disk, a conductive rod and a support member, wherein the two support members move toward each other along a third preset direction, so that the two support members clamp the insulator and drive the insulator to move to a measuring position, so that the central axis of the insulator coincides with the central axis of each clamping disk; then, the two clamping parts move toward each other along a first preset direction, so that the hardware at both ends of the insulator passes through each clamping disk, so that the conductive rod on each clamping disk moves along the radial direction of the clamping disk until the other end of the conductive rod abuts against the insulator at the measuring position, at which time the two ends of the conductive rod are electrically connected to the measuring instrument and the insulator respectively, so that the two clamping parts cannot continue to move toward each other, thereby completing the clamping and fixing of the insulator, and preventing the insulator from shaking during the process of measuring the insulator by the measuring instrument, resulting in the insulator being unable to maintain electrical connection with the measuring instrument, thereby solving the problem of large measurement error of the insulator resistance by the measuring instrument in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic front view of an embodiment of an insulator resistance measuring device according to the present invention is shown;

[0018] Figure 2 A schematic diagram showing the internal structure of an insulator resistance measuring device according to the present invention is shown;

[0019] Figure 3 A schematic structural diagram showing an angle of a clamping component of an insulator resistance measuring device according to the present invention;

[0020] Figure 4 It shows a schematic diagram of assembling the first cylinder, the second cylinder and the third cylinder of the insulator resistance measuring device according to the present invention;

[0021] Figure 5 A schematic diagram showing the installation of the third rack of the insulator resistance measuring device according to the present invention on the clamping plate;

[0022] Figure 6 It shows a schematic diagram of assembling the third cylinder and the second cylinder of the insulator resistance measuring device according to the present invention;

[0023] Figure 7 A schematic structural diagram of a protrusion of an insulator resistance measuring device according to the present invention is shown;

[0024] Figure 8 A partial cross-sectional view showing a protrusion of the insulator resistance measuring device according to the present invention;

[0025] Fig. 9 A schematic structural diagram of a clamping plate, a first arc-shaped plate, a first transmission rod, a second transmission rod, a support member, a first slider and an eighth slider of the insulator resistance measuring device according to the present invention is shown;

[0026] Fig.10 A schematic structural diagram of a first arc-shaped plate, a support member and a second slider of an insulator resistance measuring device according to the present invention is shown;

[0027] Fig.11 A schematic structural diagram showing another angle of the clamping component of the insulator resistance measuring device according to the present invention;

[0028] Fig.12 A schematic diagram of the partial internal structure of a box of an insulator resistance measuring device according to the present invention is shown.

[0029] The above drawings include the following reference numerals:

[0030] 1. Box; 101. Insulator; 2. Measuring instrument; 3. First conductor; 22. Clamping plate; 33. Conductive rod; 35. Support member; 38. First slider; 34. First arc plate; 36. First transmission rod; 37. First guide groove; 39. Second guide groove; 40. Second slider; 8. Base; 42. First rack; 43. First gear; 44. Rotating rod; 10. Guide rod; 45. Guide column; 14. First cylinder; 16. Second cylinder; 15. Third cylinder; 25. Pressure plate; 27. Third slider; 28. Threaded groove; 1 7. annular rack; 21. third rack; 18. third gear; 19. fourth gear; 20. protrusion; 30. insulating plate; 32. insulating rod; 48. spiral conductive wire; 24. elastic member; 351. support rod; 361. second transmission rod; 381. eighth slider; 201. through hole; 23. fourth guide groove; 26. arc-shaped through groove; 4. limit guide rail; 6. counterweight wheel; 5. guide wheel; 31. clamping plate; 7. guide platform; 13. sleeve; 12. threaded rod; 46. fifth guide groove; 47. telescopic insulating rod; 29. ​​connecting column. DETAILED DESCRIPTION

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0033] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0034] Please refer to Figures 1 to 12 The present invention provides an insulator resistance measuring device, comprising: a box 1, wherein the box 1 has a receiving cavity inside, the receiving cavity is used to receive a measuring assembly and an insulator 101, the insulator 101 extends along a first preset direction, and a measuring instrument 2 is arranged on the top of the box 1; the measuring assembly comprises two clamping components, and the two clamping components are respectively used to clamp the two ends of the insulator 101; each clamping component comprises a clamping plate 22, a conductive rod 33 and a support member 35, and two support members 35 are movably arranged on the clamping plate 22, and each support member 35 is used to contact the circumferential side wall of the insulator 101, and the two support members 35 are ... 5 are movably arranged toward each other along the third preset direction, so that the two support members 35 clamp the insulator 101 and drive the insulator 101 to move to the measuring position; one end of the conductive rod 33 is electrically connected to the measuring instrument 2, and the conductive rod 33 is movably arranged on the clamping disk 22, and the two clamping members are movably arranged toward each other along the first preset direction, so that the conductive rod 33 moves along the radial direction of the clamping disk until the other end of the conductive rod 33 abuts against the insulator at the measuring position; wherein, when the insulator 101 is at the measuring position, the central axis of the insulator 101 and the central axis of each clamping disk 22 are arranged to coincide with each other.

[0035] The insulator resistance measuring device of the present invention comprises: a box 1, a measuring instrument 2 and a measuring assembly, wherein the measuring assembly comprises two clamping components, each of which comprises a clamping disk 22, a conductive rod 33 and a support member 35, and the two support members 35 move toward each other along a third preset direction, so that the two support members 35 clamp the insulator 101 and drive the insulator 101 to move to a measuring position, so that the central axis of the insulator 101 coincides with the central axis of each clamping disk 22; then, the two clamping components move toward each other along a first preset direction, so that the metal fittings at both ends of the insulator penetrate the metal fittings 22, and the metal fittings 22 at the two ends of the insulator are connected to the metal fittings 22. Through each clamping disk 22, the conductive rod 33 on each clamping disk 22 moves along the radial direction of the clamping disk until the other end of the conductive rod 33 abuts against the insulator at the measuring position. At this time, the two ends of the conductive rod 33 are electrically connected to the measuring instrument 2 and the insulator respectively, so that the two clamping components cannot continue to move toward each other, thereby completing the clamping and fixing of the insulator, avoiding the shaking of the insulator during the measurement of the insulator by the measuring instrument 2, resulting in the insulator being unable to maintain electrical connection with the measuring instrument, thereby solving the problem of large measurement error of the insulator resistance by the measuring instrument in the prior art.

[0036] Since the two clamping parts are movably arranged toward each other, the insulator resistance measuring device of the present invention can measure insulators of different lengths; since the conductive rod 33 can reciprocate along the radial direction of the clamping disk 22, the insulator resistance measuring device of the present invention can measure insulators of different diameters; the insulator resistance measuring device of the present invention has the advantage of simple insulator positioning and clamping operation. For insulators of different diameters, the contact between the conductive rod 33 and the insulator hardware is very easy to judge. As long as the clamping parts cannot continue to move toward each other, it means that the conductive rod 33 and the insulator hardware are connected.

[0037] The two clamping components of the present invention can clamp the insulator during the process of moving toward each other, and at the same time make the conductive rod 33 and the hardware of the insulator conductive, which greatly improves the installation efficiency before measuring the insulator and improves the measurement efficiency of the insulator resistance.

[0038] Specifically, the conductive rod 33 and the support member 35 are respectively arranged on both axial sides of the clamping disk 22; the insulator 101 includes a hardware and an insulating body, the hardware is arranged at both ends of the insulating body, the support member 35 is used to contact the circumferential side wall of the insulating body, and the conductive rod 33 is used to abut the hardware.

[0039] In this embodiment, the clamping component also includes a first slider 38, two first curved plates 34 and two first transmission rods 36. The two first curved plates 34 and the two first transmission rods 36 are arranged in a one-to-one correspondence, and the two first curved plates 34 and the two support members 35 are arranged in a one-to-one correspondence. Each first curved plate 34 is hinged to the corresponding support member 35, one end of each first transmission rod 36 is hinged to the corresponding first curved plate 34, and the other end of each first transmission rod 36 is hinged to the first slider 38. The first slider 38 is arranged to be reciprocatingly movable along the second preset direction so that the first curved plate 34 at the bottom and the first curved plate 34 at the top move toward each other along the third preset direction.

[0040] Specifically, the two first transmission rods 36 and the first slider 38 are hinged, so that the two first curved plates 34 are transmission connected to the first slider 38, so that the two first curved plates 34 are transmission connected, and the first curved plate 34 located at the bottom moves along the third preset direction toward the insulator 101, which can drive the first slider 38 to move away from the insulator 101, so as to drive the first curved plate 34 located at the top to move toward the insulator 101, and then the two first curved plates 34 drive their respective support members 35 to move toward each other, ensuring that the two support members 35 can clamp the insulator 101 and drive the insulator 101 to move to the measuring position.

[0041] Specifically, each support member 35 includes two support rods 351, and the two support rods 351 are respectively arranged at the two ends of the corresponding first curved plate 34; the clamping component also includes an eighth slider 381 and two second transmission rods 361, and the two second transmission rods 361 are arranged one-to-one with the two first curved plates 34, one end of each second transmission rod 361 is hinged to the eighth slider 381, and the other end of each second transmission rod 361 is hinged to the corresponding first curved plate 34; when the first curved plate 34 located at the bottom moves along the third preset direction toward the direction close to the insulator 101, a first transmission rod 36 and a second transmission rod 361 can respectively drive the first slider 38 and the eighth slider 381 to move, so that another first transmission rod 36 and another second transmission rod 361 jointly drive another first curved plate 34 to move, thereby ensuring the reliability of the transmission connection between the two first curved plates 34.

[0042] In this embodiment, each clamping plate 22 is provided with a first guide groove 37 and two second guide grooves 39, the first guide grooves 37 extend along the second preset direction, and each second guide groove 39 extends along the third preset direction. The clamping component also includes two second sliders 40, and the two second sliders 40 are arranged in a one-to-one correspondence with the two first arc plates 34, and the two second sliders 40 are arranged in a one-to-one correspondence with the two second guide grooves 39. Each second slider 40 is arranged on the corresponding first arc plate 34, so that each second guide groove 39 guides the corresponding first arc plate 34 through the cooperation of each second slider 40 and the corresponding second guide groove 39; and the first slider 38 cooperates with the first guide groove 37 so that the first guide groove 37 guides the first slider 38.

[0043] Specifically, each second slider 40 cooperates with the corresponding second guide groove 39, so that each second guide groove 39 guides the corresponding first arc plate 34 to prevent the movement direction of the first arc plate 34 from deviating from the third preset direction; the first slider 38 cooperates with the first guide groove 37, so that the first guide groove 37 guides the first slider 38 to prevent the movement direction of the first slider 38 from deviating from the second preset direction, thereby ensuring that the two first arc plates 34 can move toward each other along the third preset direction with their respective support members 35.

[0044] Specifically, there are two first guide grooves 37 , and the two first guide grooves 37 are respectively arranged in one-to-one correspondence with the first sliding block 38 and the eighth sliding block 381 .

[0045] In this embodiment, the clamping component also includes a base 8, a first rack 42, a first gear 43 and a rotating rod 44. The clamping plate 22 can be movably arranged on the base 8. The base 8 is provided with a first rack 42. The first rack 42 extends along a second preset direction. The first gear 43 and the first rack 42 are meshed with each other. The central rotating shaft of the first gear 43 is connected to one end of the rotating rod 44. The other end of the rotating rod 44 is slidably connected to the outer arc surface of the first arc plate 34 located at the bottom. The first rack 42 is arranged to be reciprocatingly movable along the second preset direction so that the rotating rod 44 rotates around the axis of the first gear 43 to drive the first arc plate 34 to move along the third preset direction.

[0046] Specifically, by moving the first rack 42 along the second preset direction, the first rack 42 drives the first gear 43 to rotate, and the rotating rod 44 rotates around the axis of the first gear 43, so that in the third preset direction, the distance between the contact point between the rotating rod 44 and the first curved plate 34 and the first rack 42 becomes larger or smaller, so that the rotating rod 44 drives the first curved plate 34 to move upward or downward along the third preset direction.

[0047] Specifically, Fig.11As shown, the first rack 42 moves along the second preset direction toward the direction close to the guide column 45, so that the first gear 43 rotates in the clockwise direction, so that the other end of the rotating rod 44 moves toward the lowest point in the third preset direction close to the first arc plate 34, so that in the third preset direction, the distance between the contact point between the rotating rod 44 and the first arc plate 34 and the first rack 42 becomes larger.

[0048] In specific implementation, before moving the insulator 101 to the measuring position, the staff first manually pulls down the first curved plate 34 at the bottom to maximize the distance between the two first curved plates 34, ensuring that the insulator 101 can be smoothly loaded between the two first curved plates 34. After the insulator is placed on the first curved plate 34 at the bottom, the two first curved plates 34 are kept in this position under the gravity of the insulator 101. At this time, the support member 35 is in contact with the maximum outer diameter portion of the insulator 101. Then the personnel pulls the guide rod 10, and the guide rod 10 can drive the first rack 42 to move through the guide column 45, so that the first arc plate 34 at the bottom moves upward, and the two first arc plates 34 move toward each other. When the support member 35 at the top contacts the maximum outer diameter part of the insulator of the insulator, the guide rod 10 cannot move further. The personnel just needs to hold the guide rod 10 to keep it fixed. After the conductive rods 33 in the two clamping parts clamp the insulator firmly, the personnel can release the guide rod 10.

[0049] In this embodiment, the measuring assembly also includes a guide rod 10, which extends along a first preset direction. At least one end of the guide rod 10 passes through the wall of the accommodating cavity. A guide column 45 is provided on the first rack 42 of each clamping component. The guide column 45 of each clamping component passes through the guide rod 10. The guide rod 10 is reciprocally movable along a second preset direction so that the guide rod 10 drives the guide column 45 and the first rack 42 to move along the second preset direction.

[0050] Specifically, the guide column 45 is used to connect the first rack 42 and the guide rod 10. The user holds one end of the guide rod 10 to drive the guide rod 10 to reciprocate along the second preset direction, so that the guide rod 10 can simultaneously drive the first racks 42 of the two clamping components to move, thereby realizing the two first arc plates 34 of each clamping component to move toward each other along the third preset direction, and then the two support members 35 of each clamping component clamp the insulator 101 and drive the insulator 101 to move to the measuring position, making it more convenient to move the insulator to the measuring position, greatly saving the labor intensity of the staff.

[0051] Specifically, a fifth guide groove 46 matching the diameter of the guide column 45 is formed on the plate surface of the guide rod 10 along its length direction, and the guide column 45 extends upward and passes through the fifth guide groove 46 .

[0052] In the present embodiment, each clamping component includes a first cylinder 14, a second cylinder 16 and a third cylinder 15. The second cylinder 16 is movably mounted on the first cylinder 14, the third cylinder 15 is movably mounted on the second cylinder 16, the third cylinder 15 is rotatably arranged around the axis of the third cylinder 15, the third cylinder 15 is transmission-connected with the second cylinder 16, and the third cylinder 15 is transmission-connected with the conductive rod 33; a pressure plate 25 is movably arranged in the first cylinder 14, a connecting column 29 is arranged on the pressure plate 25, the connecting column 29 passes through the cylinder wall of the first cylinder 14 and is connected to the second cylinder 16, so that when the two clamping components move toward each other along the first preset direction, the end of the insulator 101 presses the pressure plate 25, so that the pressure plate 25 drives the second cylinder 16 to move along the first preset direction, so that the second cylinder 16 drives the third cylinder 15 to rotate, and so that the third cylinder 15 drives the conductive rod 33 to move in a direction toward the insulator 101.

[0053] Specifically, the two clamping components move toward each other along the first preset direction, so that the two clamping disks 22 move toward each other along the first preset direction, so that the two ends of the insulator 101 are respectively passed through the penetration holes 201 on each clamping disk 22, the third cylinder 15 and the first cylinder 14 are in contact with the pressure plate 25, so that the end of the insulator 101 squeezes the pressure plate 25, so that the pressure plate 25 drives the second cylinder 16 to move along the first preset direction through the connecting column 29, so that the second cylinder 16 drives the third cylinder 15 to rotate, so that the third cylinder 15 drives the conductive rod 33 to move along the radial direction of the clamping disk 22 toward the direction close to the insulator 101, thereby ensuring that the conductive rod 33 can smoothly abut against the insulator 101, so that the clamping component clamps and fixes the insulator 101 while realizing the electrical connection between the insulator 101 and the measuring instrument 2.

[0054] Specifically, when the insulator 101 is in the measuring position, the two clamping parts move toward each other synchronously. After the hardware at the end of the insulator 101 contacts the pressure plate 25, the two clamping parts continue to move toward each other synchronously. The insulator 101 reacts on the pressure plate 25 to drive all the conductive rods 33 to move toward the direction close to the insulator 101 until the conductive rods 33 are against the circumferential side walls of the insulator 101 to clamp it, so that all the conductive rods 33 are connected to the measuring instrument 2. This design ensures that after the hardware at the end of the insulator 101 contacts the pressure plate 25, the pressure plate 25 continues to apply pressure to the insulator 101, thereby ensuring the accuracy of the measurement.

[0055] Specifically, the first cylinder 14 and the clamping plate 22 are fixedly connected to the base 8, so that the base 8 can support the first cylinder 14 and the clamping plate 22; there are multiple connecting columns 29, and the multiple connecting columns 29 are arranged at intervals along the circumferential direction of the second cylinder 16, so as to ensure the connection reliability between the pressure plate 25 and the second cylinder 16; a plurality of fourth guide grooves 23 are arranged on the circumferential surface of the first cylinder 14, and the plurality of fourth guide grooves 23 and the plurality of connecting columns 29 are arranged one by one, and each fourth guide groove 23 cooperates with the corresponding connecting column 29, so that the fourth guide groove 23 can guide the pressure plate 25.

[0056] Specifically, the end of the third rack 21, that is, the end of the third rack 21 facing the insulator 101, is symmetrically connected to two clamping plates 31, and each clamping plate 31 is elastically rotatably connected to the third rack 21. When the third rack 21 moves toward the inside of the third cylinder 15 to clamp the insulator 101, the two clamping plates 31 first contact and expand with the insulator 101, which can increase the contact area between the third rack 21 and the insulator 101 and ensure the positioning reliability of the insulator 101.

[0057] In this embodiment, a third slider 27 is provided on the cylinder wall of the second cylinder 16, and a threaded groove 28 is provided on the inner groove wall of the third cylinder 15. The third slider 27 can be movably inserted into the threaded groove 28 to move along the first preset direction through the second cylinder 16 to drive the third cylinder 15 to rotate.

[0058] Specifically, the third slider 27 is movably inserted into the thread groove 28, so that the third cylinder 15 and the second cylinder 16 are transmission connected, so that the second cylinder 16 moves along the first preset direction, which can drive the third cylinder 15 to rotate around the axis of the third cylinder 15, thereby ensuring that the third cylinder 15 can drive the conductive rod 33 to move.

[0059] In this embodiment, an annular rack 17 is provided on the circumferential outer wall of the third cylinder 15, and each clamping component also includes a third rack 21, a third gear 18 and a fourth gear 19. The third rack 21 extends along the radial direction of the clamping disk 22, and the third rack 21 is movably provided on the clamping disk 22, and a conductive rod 33 is provided on the third rack 21; the annular rack 17 and the third gear 18 are meshed with each other, and the third gear 18 and the fourth gear 19 are transmission-connected, and the fourth gear 19 and the third rack 21 are meshed with each other, so that the annular rack 17 rotates around the axis of the third cylinder 15, driving the third gear 18 and the fourth gear 19 to rotate, so that the third rack 21 moves along the radial direction of the clamping disk 22 toward the direction close to the insulator 101.

[0060] Specifically, the third gear 18 and the fourth gear 19 are sleeved on the same rotating shaft, so that the third gear 18 and the fourth gear 19 are transmission connected, so that the third gear 18 and the fourth gear 19 can rotate synchronously.

[0061] Specifically, the third rack 21 passes through the arc-shaped slot 26 on the circumferential side wall of the third barrel 15 and then extends into the third barrel 15. After the end of the third rack 21 contacts the circumferential side wall of the insulator 101, the two clamping parts cannot move, and the insulator 101 is firmly clamped. Since the third rack 21 is moving, the third barrel 15 is rotating. In order to avoid interference between the two, the arc-shaped slot 26 has an arc range of 60° to 90° to ensure that the third rack 21 can always move in the arc-shaped slot 26.

[0062] Specifically, an annular rack 17 is integrally formed and connected at the position where the third cylinder 15 and the clamping plate 22 are rotatably connected. The annular rack 17, the third gear 18 and the fourth gear 19 are used to drive the third cylinder 15 and the third rack 21, so that the third cylinder 15 is in drive connection with the conductive rod 33. The third cylinder 15 drives the annular rack 17 thereon to rotate synchronously, so that the annular rack 17 drives the third gear 18 to rotate, the third gear 18 drives the fourth gear 19 to rotate, and the fourth gear 19 drives the third rack 21 to move along the radial direction of the clamping plate 22 toward the direction close to the insulator 101, thereby ensuring that the conductive rod 33 can move in the direction close to the insulator 101.

[0063] In this embodiment, each clamping component also includes a protrusion 20, which is arranged on the clamping disk 22, and an insulating plate 30 and an insulating rod 32 are arranged on the protrusion 20. The protrusion 20 extends along the radial direction of the clamping disk 22. The third rack 21 is movably arranged on the protrusion 20, one end of the insulating plate 30 is connected to the protrusion 20, the other end of the insulating plate 30 is connected to one end of the insulating rod 32, the other end of the insulating rod 32 is movably connected to the conductive rod 33, a spiral conductive wire 48 is arranged in the insulating rod 32, one end of the spiral conductive wire 48 is connected to the conductive rod 33, and the other end of the spiral conductive wire 48 is electrically connected to the measuring instrument 2.

[0064] Specifically, the protrusion 20 is used to connect the third rack 21 and the clamping plate 22, so that the third rack 21 is movably set on the clamping plate 22; the insulating rod 32 is set on the protrusion 20, and the insulating rod 32 is used to protect and accommodate the spiral conductive wire 48. The spiral conductive wire 48 is used to electrically connect the measuring instrument 2 and the conductive rod 33, so that the measuring instrument 2 and the insulator 101 are electrically connected; in the process of the third rack 21 moving toward the inside of the third cylinder 15, the insulating plate 30 and the insulating rod 32 remain fixed, and the third rack 21 and the insulating rod 32 slide relative to each other, and at this time the spiral conductive wire 48 inside the insulating rod 32 is stretched.

[0065] Specifically, the third rack 21, the third gear 18 and the fourth gear 19 constitute a transmission component, there are three transmission components, there are three protrusions 20, and there are three third racks 21. The three third racks 21 and the three protrusions 20 are arranged one by one, and the three third racks 21 and the three transmission components are arranged one by one; the three protrusions 20 are arranged at intervals along the circumferential direction of the clamping disk 22.

[0066] Specifically, the measuring component also includes a first wire 3 and a second wire. There are three second wires, and the three second wires and the three protrusions 20 are arranged in a one-to-one correspondence. Each second wire is pre-buried in the insulating plate 30 on the corresponding protrusion 20. The other end of the spiral conductive wire 48 is electrically connected to the second wire. The second wire passes through the insulating plate 30 and then extends to the inside of the clamping disk 22. After the second wire extends to the inside of the clamping disk 22, it is connected to the first wire 3 outside the box body 1. The measuring component also includes two telescopic insulating rods 47. The two telescopic insulating rods 47 and the two clamping parts are arranged in a one-to-one correspondence. There are two first wires 3, and the two first wires 3 and the two clamping parts are arranged in a one-to-one correspondence. Each telescopic insulating rod 47 is installed on the inner wall of the box body 1. The telescopic insulating rod 47 extends along a first preset direction. The two first wires 3 outside the box body 1 pass through the corresponding telescopic insulating rods 47 and then extend to the inside of the clamping disk 22, and are connected to the second wires inside the clamping disk 22.

[0067] Specifically, the measuring assembly also includes two retractable components, each of which includes a limiting guide rail 4, a counterweight wheel 6 and a guide wheel 5. The two retractable components and the two first wires 3 are arranged in a one-to-one correspondence, and the two retractable components are respectively arranged on both sides of the box body 1. The limiting guide rail 4 is installed on the side wall of the box body 1, and a counterweight wheel 6 is slidably installed on the limiting guide rail 4. The first wire 3 is wound around the counterweight wheel 6, and the guide wheel 5 is installed on the top of the box body 1. The first wire 3 bypasses the counterweight wheel 6 and is connected to the measuring instrument 2 through the guide wheel 5. When the two clamping components move back to back, the telescopic insulating rod 47 retracts. At this time, the first wire 3 will be naturally released to the outside of the box body 1 under the action of the gravity of the counterweight wheel 6 to avoid being squeezed inside the telescopic insulating rod 47.

[0068] In this embodiment, the clamping component also includes an elastic member 24, one end of the elastic member 24 is connected to the axial cylinder wall of the first cylinder 14, and the other end of the elastic member 24 is connected to the pressure plate 25, so that when the pressure plate 25 moves in the direction away from the clamping disk 22, the elastic member 24 is squeezed by the pressure plate 25, and the elastic deformation is restored by the elastic member 24 to drive the pressure plate 25 to move in the direction close to the clamping disk 22.

[0069] Specifically, when the measuring assembly completes the resistance measurement of the insulator, the two clamping parts move away from each other and return to the initial position, and the pressure plate 25 restores its elastic deformation under the action of the elastic member 24, driving the pressure plate 25 to move in the direction toward the clamping disk 22, which in turn also helps to reset the second cylinder 16, the third cylinder 15 and the third rack 21.

[0070] Optionally, the elastic member 24 is a spring.

[0071] Specifically, there are two bases 8, both of which are slidably mounted on the guide platform 7 inside the box body 1, and a sleeve 13 is installed at the bottom of each base 8. A threaded rod 12 is also rotatably mounted inside the box body 1, and the threaded rod 12 is driven to rotate by a motor outside the box body 1. The sleeves 13 at the bottom of the two bases 8 are threadedly sleeved on the threaded rod 12, and the internal threads inside the two sleeves 13 are set in opposite directions. The threaded rod 12 is driven to rotate by the motor, which can drive the two bases 8 to move toward or away from each other synchronously.

[0072] In specific implementation, the box 1 is also provided with a standard environment simulation component, which includes an electric heating plate, a cooling plate, a sprayer, a vacuum pump, a temperature sensor, a humidity sensor, an air pressure sensor and an industrial computer. The above-mentioned devices adjust the temperature value, humidity value and air pressure in the measuring box through the industrial computer inside the measuring box. The standard environment simulation component can simulate the natural environment, which is convenient for measuring insulators in various environments.

[0073] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0074] The insulator resistance measuring device of the present invention comprises: a box 1, a measuring instrument 2 and a measuring assembly, wherein the measuring assembly comprises two clamping components, each of which comprises a clamping disk 22, a conductive rod 33 and a support member 35, and the two support members 35 move toward each other along a third preset direction, so that the two support members 35 clamp the insulator 101 and drive the insulator 101 to move to a measuring position, so that the central axis of the insulator 101 coincides with the central axis of each clamping disk 22; then, the two clamping components move toward each other along a first preset direction, so that the metal fittings at both ends of the insulator penetrate the metal fittings 22, and the metal fittings 22 at the two ends of the insulator are connected to the metal fittings 22. Through each clamping disk 22, the conductive rod 33 on each clamping disk 22 moves along the radial direction of the clamping disk until the other end of the conductive rod 33 abuts against the insulator at the measuring position. At this time, the two ends of the conductive rod 33 are electrically connected to the measuring instrument 2 and the insulator respectively, so that the two clamping components cannot continue to move toward each other, thereby completing the clamping and fixing of the insulator, avoiding the shaking of the insulator during the measurement of the insulator by the measuring instrument 2, resulting in the insulator being unable to maintain electrical connection with the measuring instrument, thereby solving the problem of large measurement error of the insulator resistance by the measuring instrument in the prior art.

[0075] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0076] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An insulator resistance measuring device, characterized in that: include: A box (1), wherein the box (1) has a receiving cavity inside, the receiving cavity is used to receive a measuring component and an insulator (101), the insulator (101) extends along a first preset direction, and a measuring instrument (2) is arranged on the top of the box (1); The measuring assembly comprises two clamping components, the two clamping components are respectively used to clamp two ends of the insulator (101); each of the clamping components comprises a clamping disk (22), a conductive rod (33) and a support member (35); two support members (35) are movably arranged on the clamping disk (22); each of the support members (35) is used to contact a circumferential side wall of the insulator (101); the two support members (35) are movably arranged towards each other along a third preset direction, so that the two support members (35) clamp the insulator (101) and drive the insulator (101) to move to a measuring position; One end of the conductive rod (33) is electrically connected to the measuring instrument (2); the conductive rod (33) is movably arranged on the clamping disk (22); and the two clamping components are movably arranged toward each other along the first preset direction, so that the conductive rod (33) moves along the radial direction of the clamping disk until the other end of the conductive rod (33) abuts against the insulator (101) at the measuring position; wherein, when the insulator (101) is at the measuring position, the central axis of the insulator (101) and the central axis of each clamping disk (22) are arranged to coincide with each other; The clamping component further comprises a first slider (38), two first arc-shaped plates (34) and two first transmission rods (36), the two first arc-shaped plates (34) and the two first transmission rods (36) are arranged in a one-to-one correspondence, the two first arc-shaped plates (34) and the two support members (35) are arranged in a one-to-one correspondence, each of the first arc-shaped plates (34) and the corresponding support member (35) are hinged, one end of each of the first transmission rods (36) is hinged to the corresponding first arc-shaped plate (34), and the other end of each of the first transmission rods (36) is hinged to the first slider (38), and the first slider (38) is arranged to be reciprocatingly movable along a second preset direction, so that the first arc-shaped plate (34) located at the bottom and the first arc-shaped plate (34) located at the top move toward each other along the third preset direction; Each of the clamping plates (22) is provided with a first guide groove (37) and two second guide grooves (39), the first guide groove (37) extending along a second preset direction, and each of the second guide grooves (39) extending along a third preset direction. The clamping component further comprises two second sliders (40), the two second sliders (40) being arranged in a one-to-one correspondence with the two first arc-shaped plates (34), the two second sliders (40) being arranged in a one-to-one correspondence with the two second guide grooves (39), and each of the second sliders (40) being arranged on the corresponding first arc-shaped plate (34), so that each of the second guide grooves (39) guides the corresponding first arc-shaped plate (34) by means of each of the second sliders (40) cooperating with the corresponding second guide groove (39); and so that the first slider (38) cooperating with the first guide groove (37) by means of the first guide groove (37) guiding the first slider (38); The clamping component further comprises a base (8), a first rack (42), a first gear (43) and a rotating rod (44); the clamping plate (22) is movably arranged on the base (8); the base (8) is provided with the first rack (42); the first rack (42) extends along the second preset direction; the first gear (43) and the first rack (42) are meshed with each other; the central rotating shaft of the first gear (43) is connected to one end of the rotating rod (44); the other end of the rotating rod (44) is slidably connected to the outer arc surface of the first arc plate (34) located at the bottom; the first rack (42) is reciprocally movably arranged along the second preset direction, so that the rotating rod (44) rotates around the axis of the first gear (43) to drive the first arc plate (34) to move along the third preset direction.

2. The insulator resistance measuring device according to claim 1, characterized in that: The measuring assembly further comprises a guide rod (10), the guide rod (10) extending along the first preset direction, at least one end of the guide rod (10) passing through the cavity wall of the accommodating cavity, a guide column (45) being arranged on the first rack (42) of each of the clamping components, the guide column (45) of each of the clamping components passing through the guide rod (10), and the guide rod (10) being arranged to be reciprocally movable along the second preset direction, so that the guide rod (10) drives the guide column (45) and the first rack (42) to move along the second preset direction.

3. The insulator resistance measuring device according to claim 1, characterized in that: Each of the clamping components comprises a first cylinder (14), a second cylinder (16) and a third cylinder (15); the second cylinder (16) is movably sleeved on the first cylinder (14); the third cylinder (15) is movably sleeved on the second cylinder (16); the third cylinder (15) is rotatably arranged around an axis of the third cylinder (15); the third cylinder (15) and the second cylinder (16) are transmission-connected; and the third cylinder (15) and the conductive rod (33) are transmission-connected; A pressure plate (25) is movably arranged in the first cylinder (14), and a connecting column is arranged on the pressure plate (25). The connecting column is passed through the cylinder wall of the first cylinder (14) and is connected to the second cylinder (16), so that when the two clamping components move toward each other along the first preset direction, the end of the insulator (101) presses the pressure plate (25), so that the pressure plate (25) drives the second cylinder (16) to move along the first preset direction, so that the second cylinder (16) drives the third cylinder (15) to rotate, so that the third cylinder (15) drives the conductive rod (33) to move in a direction toward the insulator (101).

4. The insulator resistance measuring device according to claim 3, characterized in that: A third sliding block (27) is provided on the wall of the second cylinder (16), and a thread groove (28) is provided on the inner groove wall of the third cylinder (15). The third sliding block (27) is movably inserted into the thread groove (28) so as to move along the first preset direction through the second cylinder (16) to drive the third cylinder (15) to rotate.

5. The insulator resistance measuring device according to claim 3, characterized in that: An annular rack (17) is provided on the circumferential outer wall of the third cylinder (15), and each of the clamping components further comprises a third rack (21), a third gear (18) and a fourth gear (19); the third rack (21) extends in the radial direction of the clamping disk (22); the third rack (21) is movably provided on the clamping disk (22), and the third rack (21) is provided with the conductive rod (33); the annular rack (17) and the third gear (18) are meshed with each other, the third gear (18) and the fourth gear (19) are transmission-connected, and the fourth gear (19) and the third rack (21) are meshed with each other so as to rotate around the axis of the third cylinder (15) through the annular rack (17), thereby driving the third gear (18) and the fourth gear (19) to rotate, so that the third rack (21) moves in the radial direction of the clamping disk (22) toward the insulator (101).

6. The insulator resistance measuring device according to claim 5, characterized in that: Each of the clamping components further comprises a protrusion (20), wherein the protrusion (20) is arranged on the clamping disk (22), an insulating plate (30) and an insulating rod (32) are arranged on the protrusion (20), the protrusion (20) extends in the radial direction of the clamping disk (22), the third rack (21) is movably arranged on the protrusion (20), one end of the insulating plate (30) is connected to the protrusion (20), the other end of the insulating plate (30) is connected to one end of the insulating rod (32), the other end of the insulating rod (32) is movably connected to the conductive rod (33), a spiral conductive wire (48) is arranged in the insulating rod (32), one end of the spiral conductive wire (48) is connected to the conductive rod (33), and the other end of the spiral conductive wire (48) is electrically connected to the measuring instrument (2).

7. The insulator resistance measuring device according to claim 3, characterized in that: The clamping component also includes an elastic member (24), one end of the elastic member (24) is connected to the axial wall of the first cylinder (14), and the other end of the elastic member (24) is connected to the pressure plate (25), so that when the pressure plate (25) moves in a direction away from the clamping disk (22), the elastic member (24) is squeezed by the pressure plate (25), and the elastic member (24) restores elastic deformation to drive the pressure plate (25) to move in a direction close to the clamping disk (22).

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