Insulating rod withstand voltage test device

Abstract

The invention relates to an insulating rod withstand voltage test device which comprises a base, a column mounting seat fixedly connected to the top wall of the base, a mounting column fixedly penetrating through the column mounting seat, a lower connecting frame fixedly connected to the top wall of the column mounting seat, a lower mounting ring fixedly connected to the lower connecting frame through a connecting piece, a plurality of lower mounting plates fixedly connected to the lower mounting ring, and a lifting motor fixedly connected to the bottom wall of each lower mounting plate. A motor shaft of the lifting motor is coaxially and fixedly connected with a lead screw, the lead screw is in threaded connection with a lead screw nut, the top side of the inner end of the lower mounting plate is fixedly connected with a vertical plate, the outer side of the vertical plate is fixedly connected with a vertical guide rail, the vertical guide rail is slidably connected with an insulation sliding block, the insulation sliding block is fixedly connected with a grounding bearing seat, and a bearing hole is formed in the top wall of the grounding bearing seat. The test efficiency of the insulating rod can be greatly improved.

Description

Technical Field

[0001] This invention relates to the field of insulating rod testing technology, and more specifically to an insulating rod withstand voltage testing device. Background Technology

[0002] Insulated operating rods, also known as high-voltage switch rods or link bars, are core insulating tools for live-line work, inspection, and maintenance in power systems. They are classified as basic safety equipment that allows direct contact with live equipment. They are available in different specifications from 10KV to 500KV and are mainly used for operating high-voltage disconnect switches, drop-out fuses, and other equipment.

[0003] The insulated operating rod consists of three parts: a working head, an insulated rod, and a handle. It comes in three types: joint type, telescopic type, and swing-blade type. The joint type uses a spiral segmented design, the telescopic type supports length adjustment, and the swing-blade type has an anti-reverse function. The insulated rod is mostly made of fiberglass epoxy resin. Before leaving the factory, the insulated rod must pass a power frequency withstand voltage test. It must be used with an appropriate voltage rating, and a withstand voltage test must be performed every six months after leaving the factory. Operating procedures such as moisture prevention and bending prevention must be followed.

[0004] In existing technologies, when conducting withstand voltage tests on insulating rods, multiple insulating rods share the same circuit, meaning they are simultaneously energized and de-energized. Since the test voltage increases gradually, and each voltage level is maintained for a certain period to test the insulating rod's withstand voltage capability, the entire testing process is time-consuming. If one insulating rod overheats or smokes due to quality issues, the power must be immediately cut off to remove it, thus affecting the testing of other insulating rods and impacting testing efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an insulating rod withstand voltage testing device, which can greatly improve the testing efficiency of insulating rods.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An insulating rod withstand voltage testing device includes a base, a column mounting seat fixedly connected to the top wall of the base, a mounting column fixedly inserted through the column mounting seat, a lower connecting frame fixedly connected to the top wall of the column mounting seat, a lower mounting ring fixedly connected to the lower connecting frame via a connecting piece, a plurality of lower mounting plates fixedly connected to the lower mounting ring, a lifting motor fixedly connected to the bottom wall of the lower mounting plates, a lead screw coaxially fixed to the motor shaft of the lifting motor, a lead screw nut threadedly connected to the lead screw, a vertical plate fixedly connected to the top side of the inner end of the lower mounting plates, and a vertical guide rail fixedly connected to the outer side of the vertical plate, the vertical guide rail being slidable. An insulated slider is connected to the grounding support, which is fixed to the grounding support. The top wall of the grounding support has a support hole. The screw nut is fixed to the grounding support via an insulated rod. The upper section of the mounting column is a threaded section, which is threaded to an adjusting connecting plate. The adjusting connecting plate is fixed to an upper connecting frame. The upper connecting frame is fixed to an upper mounting ring via a connecting piece. The upper mounting ring is fixed to several upper mounting plates. The bottom wall of the upper mounting plate is fixed to a connecting sleeve. The top wall of the inner cavity of the connecting sleeve is provided with a conductive contact piece. An insulated fence is fixed to the lower opening edge of the connecting sleeve.

[0008] Specifically, the top wall of the electrical connector sleeve is provided with a countersunk hole, and a guide rod is slidably provided in the through hole of the countersunk hole. The top end of the guide rod is provided with a limiting edge, which is located inside the countersunk hole. A conductive contact is fixedly connected to the bottom end of the guide rod, and a conductive spring is sleeved on the guide rod. The two ends of the conductive spring abut against the top wall of the inner cavity of the electrical connector sleeve and the top wall of the conductive contact, respectively.

[0009] Specifically, when the conductive contact is in the lower limit position, the bottom wall of the conductive contact is flush with the edge of the bottom opening of the electrical sleeve.

[0010] Specifically, the threaded section has a locking nut that abuts against the top wall of the height adjustment connecting plate.

[0011] Specifically, the lower mounting ring is fixed with eight lower mounting plates, which are evenly distributed circumferentially. Correspondingly, the upper mounting ring is fixed with eight upper mounting plates, which are vertically aligned with the lower mounting plates.

[0012] Specifically, the lower connecting frame is provided with four connecting plates, which are evenly distributed circumferentially, and the connecting plates are fixed to the lower mounting ring by screws.

[0013] Specifically, the upper connecting frame is provided with four connecting plates, which are evenly distributed around the circumference. The connecting plates are fixed to the upper mounting ring by screws.

[0014] Specifically, the base is equipped with a control cabinet, and the control cabinet is equipped with a control touch screen.

[0015] Specifically, the inner wall of the support hole is a tapered surface that narrows downwards.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] By configuring each insulating rod 9 to be tested with a separate grounding support 47 and a power connection sleeve 62, when a failed insulating rod 9 heats up and smokes during the test, the power to that failed insulating rod 9 can be cut off in time without affecting the continued testing of other insulating rods 9 to be tested, thereby greatly improving the testing efficiency of the insulating rods 9. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural view of the insulating rod withstand voltage testing device;

[0020] Figure 2 for Figure 1 A magnified view of a portion of the document;

[0021] Figure 3 A view of the grounding support and related structures;

[0022] Figure 4 A view of the electrical connection sleeve and related structures;

[0023] Figure 5 This is a view showing the combined state of the electrical connection sleeve and the insulating rod.

[0024] In the picture:

[0025] 1. Column mounting base; 2. Mounting column; 21. Threaded section; 22. Locking nut;

[0026] 3. Lower connecting bracket; 31. Lower mounting ring;

[0027] 41. Lower mounting plate; 42. Lifting motor; 43. Lead screw; 44. Lead screw nut; 441. Insulating rod; 45. Vertical plate; 46. Insulating slider; 47. Grounding support; 471. Support hole;

[0028] 51. Adjust the height of the connecting plate; 52. Install the connecting bracket; 53. Install the mounting ring;

[0029] 61. Upper mounting plate; 62. Electrical connection sleeve; 63. Insulating fence; 631. Insulating ring;

[0030] 71. Conductive contact piece; 72. Guide rod; 73. Conductive spring;

[0031] 8. Control the touchscreen;

[0032] 9. Insulating rod. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] See Figures 1 to 5 An insulating rod withstand voltage testing device includes a base, a column mounting seat 1 fixedly connected to the top wall of the base, and a mounting column 2 fixedly inserted through the column mounting seat 1. A lower connecting frame 3 is fixedly connected to the top wall of the column mounting seat 1, and a lower mounting ring 31 is fixedly connected to the lower connecting frame 3 via a connecting piece. Several lower mounting plates 41 are fixedly connected to the lower mounting ring 31.

[0035] A lifting motor 42 is fixedly connected to the bottom wall of the lower mounting plate 41. A lead screw 43 is coaxially fixed to the motor shaft of the lifting motor 42, and a lead screw nut 44 is threaded onto the lead screw 43. A vertical plate 45 is fixedly connected to the top side of the inner end of the lower mounting plate 41. A vertical guide rail is fixedly connected to the outer side of the vertical plate 45, and an insulating slider 46 is slidably connected to the vertical guide rail. A grounding support 47 is fixedly connected to the insulating slider 46, and a support hole 471 is provided on the top wall of the grounding support 47. The lead screw nut 44 and the grounding support 47 are fixedly connected by an insulating rod 441.

[0036] The upper section of the mounting column 2 is a threaded section 21. The threaded section 21 is threadedly connected to a height adjustment connecting plate 51. The height adjustment connecting plate 51 is fixedly connected to an upper connecting frame 52. The upper connecting frame 52 is fixedly connected to an upper mounting ring 53 via a connecting piece. The upper mounting ring 53 is fixedly connected to several upper mounting plates 61. The bottom wall of the upper mounting plate 61 is fixedly connected to an electrical connection sleeve 62. The top wall of the inner cavity of the electrical connection sleeve 62 is provided with a conductive contact piece 71. An insulating fence 63 is fixedly connected to the lower opening edge of the electrical connection sleeve 62.

[0037] Specifically, the top wall of the electrical connection sleeve 62 is provided with a countersunk hole, and a guide rod 72 is slidably provided in the through hole of the countersunk hole. The top end of the guide rod 72 is provided with a limiting edge, which is located inside the countersunk hole. A conductive contact piece 71 is fixedly connected to the bottom end of the guide rod 72, and a conductive spring 73 is sleeved on the guide rod 72. The two ends of the conductive spring 73 abut against the top wall of the inner cavity of the electrical connection sleeve 62 and the top wall of the conductive contact piece 71, respectively.

[0038] Specifically, when the conductive contact 71 is in the lower limit position, the bottom wall of the conductive contact 71 is flush with the bottom opening edge of the electrical sleeve 62.

[0039] Specifically, the threaded section 21 is threadedly connected to a locking nut 22, which abuts against the top wall of the height adjustment connecting plate 51.

[0040] Specifically, the lower mounting ring 31 is fixed with eight lower mounting plates 41, which are evenly distributed circumferentially. Correspondingly, the upper mounting ring 53 is fixed with eight upper mounting plates 61, which are vertically aligned with the lower mounting plates 41.

[0041] Specifically, the lower connecting frame 3 is provided with four connecting pieces, which are evenly distributed along the circumference. The connecting pieces are fixed to the lower mounting ring 31 by screws.

[0042] Specifically, the upper connecting frame 52 is provided with four connecting pieces, which are evenly distributed around the circumference. The connecting pieces are fixed to the upper mounting ring 53 by screws.

[0043] Specifically, the base is equipped with a control cabinet, and the control cabinet is equipped with a control touch screen 8.

[0044] Specifically, the inner wall of the support hole 471 is a conical surface that narrows downwards.

[0045] The working principle of this invention is as follows:

[0046] First, adjust the height of the height adjustment connecting plate 51 (threaded section 21 is threadedly connected to the height adjustment connecting plate 51) according to the length of the insulating rod 9 to be tested. Then, tighten the locking nut 22 until it abuts against the top wall of the height adjustment connecting plate 51, thereby locking the height adjustment connecting plate 51 at that height position.

[0047] Next, the insulating rods 9 to be tested are installed sequentially. During installation, the upper end of the insulating rod 9 to be tested is first inserted into the insulating fence 63 from bottom to top (without touching the conductive contact 71). Then, the lower end of the insulating rod 9 to be tested is placed into the support hole 471 provided in the grounding support 47. Since the inner wall of the support hole 471 is a tapered surface that narrows downwards, the lower end of the insulating rod 9 to be tested contacts this tapered surface, ensuring that the lower end of the insulating rod 9 to be tested remains stable. The grounding support 47 is connected to a grounding wire for grounding.

[0048] Then, the lifting motor 42 corresponding to the insulating rod 9 under test is activated. The lifting motor 42 drives the lead screw 43 to rotate, thereby causing the lead screw nut 44, the grounding support 47, and the insulating rod 9 under test to move upward relative to the upright plate 45. This causes the upper end of the insulating rod 9 under test to move upward to abut against the conductive contact 71 and compress the conductive spring 73, thereby keeping the conductive contact 71 in contact with the upper end of the insulating rod 9 under test. The electrical connection sleeve 62 is connected to a connecting wire for connecting to electricity.

[0049] After the installation of the eight insulating rods 9 to be tested is completed, the eight junction sleeves 62 are simultaneously energized, with a voltage reaching 500kV, to perform a withstand voltage test on each insulating rod 9. When one of the insulating rods 9 exhibits unacceptable behavior such as overheating or smoking, the corresponding lifting motor 42 drives the corresponding grounding support 47 to move downwards, causing the unacceptable insulating rod 9 to move downwards from the junction sleeve 62 and rest against the insulating ring 631 on the lower side of the insulating fence 63. At this point, the unacceptable insulating rod 9 is no longer conductive, preventing it from continuing to overheat and smoke, which would affect the continued testing of other insulating rods 9.

[0050] By configuring each insulating rod 9 to be tested with a separate grounding support 47 and a power connection sleeve 62, when a failed insulating rod 9 heats up and smokes during the test, the power to that failed insulating rod 9 can be cut off in time without affecting the continued testing of other insulating rods 9 to be tested, thereby greatly improving the testing efficiency of the insulating rods 9.

[0051] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A withstand voltage testing device for an insulating rod, characterized in that: The system includes a base, a column mounting seat fixed to the top wall of the base, a mounting column fixedly inserted through the column mounting seat, a lower connecting frame fixed to the top wall of the column mounting seat, a lower mounting ring fixed to the lower connecting frame via a connecting piece, several lower mounting plates fixed to the lower mounting ring, a lifting motor fixed to the bottom wall of the lower mounting plate, a lead screw coaxially fixed to the motor shaft of the lifting motor, a lead screw nut threaded onto the lead screw, a vertical plate fixed to the top side of the inner end of the lower mounting plate, and a vertical guide rail fixed to the outer side of the vertical plate. The vertical guide rail is slidably connected to an insulated sliding... The block has an insulating slider fixed to a grounding support. The top wall of the grounding support has a support hole. The screw nut is fixed to the grounding support via an insulating rod. The upper section of the mounting column is a threaded section. The threaded section is threaded to an adjusting connecting plate. The adjusting connecting plate is fixed to an upper connecting frame. The upper connecting frame is fixed to an upper mounting ring via a connecting piece. The upper mounting ring is fixed to several upper mounting plates. The bottom wall of the upper mounting plate is fixed to a connecting sleeve. The top wall of the inner cavity of the connecting sleeve is provided with a conductive contact piece. An insulating fence is fixed to the lower opening edge of the connecting sleeve.

2. The insulating rod withstand voltage testing device according to claim 1, characterized in that: The top wall of the electrical connector sleeve is provided with a countersunk hole, and a guide rod is slidably provided in the through hole of the countersunk hole. The top end of the guide rod is provided with a limiting edge, which is located inside the countersunk hole. A conductive contact is fixedly connected to the bottom end of the guide rod, and a conductive spring is sleeved on the guide rod. The two ends of the conductive spring abut against the top wall of the inner cavity of the electrical connector sleeve and the top wall of the conductive contact, respectively.

3. The insulating rod withstand voltage testing device according to claim 2, characterized in that: When the conductive contact is in the lower limit position, the bottom wall of the conductive contact is flush with the edge of the bottom opening of the electrical sleeve.

4. The insulating rod withstand voltage testing device according to claim 1, characterized in that: The threaded section has a locking nut, which abuts against the top wall of the height adjustment connecting plate.

5. The insulating rod withstand voltage testing device according to claim 1, characterized in that: The lower mounting ring is fixed with eight lower mounting plates, which are evenly distributed circumferentially. Correspondingly, the upper mounting ring is fixed with eight upper mounting plates, which are vertically aligned with the lower mounting plates.

6. The insulating rod withstand voltage testing device according to claim 1, characterized in that: The lower connecting frame is equipped with four connecting plates, which are evenly distributed around the circumference. The connecting plates are fixed to the lower mounting ring by screws.

7. The insulating rod withstand voltage testing device according to claim 1, characterized in that: The upper connecting frame is equipped with four connecting plates, which are evenly distributed around the circumference. The connecting plates are fixed to the upper mounting ring by screws.

8. The insulating rod withstand voltage testing device according to claim 1, characterized in that: The base is equipped with a control cabinet, which contains a control touch screen.

9. The insulating rod withstand voltage testing device according to claim 1, characterized in that: The inner wall of the support hole is a tapered surface that narrows downwards.

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