Insulating rod multi-group testing device

Abstract

This utility model discloses a multi-group testing device for insulating rods, including several support columns. The tops of the support columns are connected to a conductive frame for supporting the conductive frame and suspending several insulating rod specimens. A connecting mechanism is also provided on the support columns for connecting the grounding parts of the insulating rod specimens in series for unified grounding. The design of this utility model is reasonable. Several insulating rod specimens are suspended by the conductive frame, and then copper strips are fixed to the support columns by clamps. The copper strips contact the grounding part of the insulating rod specimens through conductive rings. Several insulating rod specimens are connected in series one by one and grounded synchronously. This solves the problem that in the past, each insulating rod specimen was grounded separately at one end, which was very inconvenient to operate, wasted time, and affected the efficiency of the test.

Description

Technical Field

[0001] This utility model relates to the field of insulating rod pressure resistance technology, specifically to a multi-group testing device for insulating rods. Background Technology

[0002] In the power frequency withstand voltage test of insulating rods, the test specimens need to be suspended one by one on the insulating rod test frame, and each test specimen needs to maintain a certain distance. According to the standard, the high voltage and grounding distance also need to meet the specification requirements. One end of the insulating rod is connected to the high voltage electrode, and the other end is grounded through the wire.

[0003] Currently, when conducting power frequency withstand voltage tests on insulating rods on the market, several insulating rods are suspended sequentially on a test frame, with a specified distance maintained between each insulating rod specimen. Then, each insulating rod is grounded individually. However, since each insulating rod specimen is grounded individually at one end, the operation is very inconvenient and time-consuming, affecting the efficiency of the test. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multi-group testing device for insulating rods.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An insulating rod multi-group test device includes several support columns, the tops of which are connected to a conductive frame for supporting the conductive frame and suspending several insulating rod test pieces; the support columns are also provided with a connecting mechanism for connecting the grounding parts of the several insulating rod test pieces in series for unified grounding. The connecting mechanism includes two clamps and a copper strip. The two clamps are slidably connected to two support columns, and one side of each clamp is connected to both ends of the copper strip. The copper strip is provided with several movable conductive rings, one side of each conductive ring being connected to the grounding part of the corresponding insulating rod specimen, for the purpose of uniformly grounding the several insulating rod specimens.

[0006] Furthermore, a first scale is provided on the outside of the support column to measure the distance between the conductive frame and the conductive ring.

[0007] Furthermore, a second scale is provided on the copper strip for measuring the distance between adjacent conductive rings.

[0008] Furthermore, a positioning hole is provided on one side of the conductive ring, and the inner wall of the positioning hole is fitted onto the outer side of the copper strip so that the conductive ring can slide along the copper strip and adjust the spacing between adjacent conductive rings.

[0009] Furthermore, a detachable structure is provided between the clamp and the copper strip; The detachable structure includes an L-shaped locking block and a protrusion. One end of the locking block is fixedly connected to one end of the copper strip, and the other end of the locking block is engaged with the protrusion. The side of the protrusion away from the locking block is fixedly connected to the clamp.

[0010] Furthermore, the height of the top and bottom of the card block is less than the height of the top and bottom of the positioning hole.

[0011] Furthermore, a clamping plate and a support frame are respectively provided at the top or bottom of the conductive ring, and a locking mechanism is provided between the support frame and the clamping plate to drive the clamping plate and the support frame to clamp onto the conductive ring, thereby fixing it.

[0012] Furthermore, the locking mechanism includes a guide post, the bottom of which is fixedly connected to the top of the support frame, the top of which passes through the clamping plate, and a threaded rod threaded to one end of the guide post. The bottom of the threaded rod contacts the clamping plate and is used to drive the clamping plate closer to the support frame. The end of the support frame is connected to the clamp for positioning the support frame.

[0013] Furthermore, the conductive frame includes a first conductive rod and a second conductive rod, which are respectively connected to corresponding support columns. A telescopic structure is provided between the first conductive rod and the second conductive rod to adjust the distance between the first conductive rod and the second conductive rod. The telescopic structure includes two positioning rods. The ends of the two positioning rods that are far apart from each other are fixedly connected to the first conductive rod and the second conductive rod, respectively. The ends of the two positioning rods that are close to each other are slidably connected to the inner wall of the positioning cylinder. Fasteners are provided at both ends of the positioning cylinder for locking and fixing the positioning rod.

[0014] Compared with existing technologies, this multi-group testing device for insulating rods has the following advantages: I. This utility model suspends several insulating rod test pieces using a conductive frame, and then fixes a copper strip to a support column using clamps. The copper strip contacts the part of the insulating rod test piece to be grounded through a conductive ring. Several insulating rod test pieces are then connected in series one by one and grounded synchronously. This solves the problem that in the past, each insulating rod test piece had to be grounded separately at one end, which was very inconvenient to operate, wasted time, and affected the efficiency of the test.

[0015] II. This utility model provides a first and a second scale on the support column and copper strip, respectively, to facilitate the adjustment of the conductive rings and clamps, ensuring an appropriate distance between adjacent conductive rings and between the conductive rings and the conductive frame support. A telescopic structure is provided between the first and second conductive rods to adjust the cross-sectional area of ​​the device and improve the stability of the device placement. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the positioning cylinder in this utility model; Figure 3 This is a cross-sectional view of the clamp in this utility model; Figure 4 In this utility model Figure 3 Enlarged schematic diagram of the structure at point A; Figure 5 This is a three-dimensional structural view of the hook in this utility model.

[0017] In the diagram: 1. Clamp; 2. Support column; 3. Conductive frame; 301. First conductive rod; 302. Second conductive rod; 4. Insulating rod specimen; 5. Conductive ring; 6. Copper strip; 7. Conductive tape; 8. Clamping block; 9. Support frame; 10. Guide column; 11. Threaded rod; 12. Clamping plate; 13. Positioning rod; 14. Positioning cylinder; 15. Fastener; 16. Clamp; 17. Hook. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] like Figure 1-5 As shown, this utility model provides a technical solution: a multi-group test device for insulating rods, including several support columns 2, the tops of which are all connected to a conductive frame 3 for supporting the conductive frame 3 and suspending several insulating rod test pieces 4; a connecting mechanism is also provided on the support columns 2 for connecting the grounding parts below the several insulating rod test pieces 4 in series for unified grounding; the connecting mechanism includes two clamps 1 and a copper strip 6, the two clamps 1 are slidably connected to the two support columns 2 respectively, and one side of the two clamps 1 is connected to both ends of the copper strip 6, and several movable conductive rings 5 ​​are provided on the copper strip 6, one side of which is connected to the grounding part of the corresponding insulating rod test piece 4 for unified grounding of the several insulating rod test pieces 4, thereby performing multiple groups of tests simultaneously.

[0020] In use, the top of the insulating rod specimen 4 rotates on the conductive frame 3 via its own hook portion, maintaining a certain distance from each other. Then, one bottom end of the insulating rod specimen 4 passes through the corresponding conductive ring 5 below and contacts the conductive ring 5. Conductive tape 7 can be set on the conductive ring 5, and the conductive tape 7 is wrapped around the insulating rod specimen 4 to connect the conductive ring 5 and the insulating rod specimen 4, improving the stability of the contact between the two. Alternatively, an elastic lever can be set on the inner ring of the conductive ring 5 to push the insulating rod specimen 4 into stable contact with the conductive ring 5. One end of the copper strip 6 is grounded, so that several insulating rod specimens 4 are connected to the copper strip 6 through the corresponding conductive ring 5 to complete the grounding. Then, the conductive frame 3 above connects several insulating rod specimens 4 to the high-voltage electrode, while the copper strip 6 below grounds several insulating rod specimens 4 to complete the withstand voltage test.

[0021] A first scale is provided on the outside of the support column 2 to measure the distance between the conductive frame 3 and the conductive ring 5. The clamp 1 includes a retaining ring and a retaining ring screw. The retaining ring is sleeved on the outside of the support column 2, and the retaining ring screw is used to clamp the retaining ring and fix it to the outside of the support column 2. When it is necessary to adjust the distance between the conductive ring 5 and the conductive frame 3, first loosen the clamps 1 at both ends of the copper strip 6, and then move them up or down to move the copper strip 6 up or down, thereby moving the conductive ring 5 up and down. Then observe the corresponding scale on the first scale of the clamp 1 to adjust the distance between the two. After adjusting to the specified distance, the retaining ring screw is used to tightly clamp the retaining ring to the outside of the support column 2 to fix the adjusted distance.

[0022] A second scale is provided on the copper strip 6 for measuring the distance between adjacent conductive rings 5. A positioning hole is provided on one side of the conductive ring 5, and the inner wall of the positioning hole is fitted onto the outer side of the copper strip 6 so that the conductive ring 5 can slide along the copper strip 6 to adjust the spacing between adjacent conductive rings 5. In use, several insulating rod specimens 4 are suspended on the conductive frame 3, and a certain distance needs to be maintained between adjacent insulating rod specimens 4. By observing the scale on the second scale on the copper strip 6, each conductive ring 5 is moved to the corresponding position, and the corresponding distance is maintained between adjacent conductive rings 5. Then, the insulating rod specimen 4 is passed through the conductive ring 5. If the insulating rod specimen 4 is tilted, its position on the conductive frame 3 is moved appropriately so that the insulating rod specimens 4 maintain the specified distance between each other.

[0023] A detachable structure is provided between the clamp 1 and the copper strip 6. The detachable structure includes an L-shaped clamping block 8 and a protrusion. One end of the clamping block 8 is fixedly connected to one end of the copper strip 6, and the other end of the clamping block 8 is engaged with the protrusion. The side of the protrusion away from the clamping block 8 is fixedly connected to the clamp 1. The height of the top and bottom of the clamping block 8 is less than the height of the top and bottom of the positioning hole. In use, the copper strip 6 has a connecting hole on the side near the clamping block 8. The grounding is completed by connecting the grounding wire through the connecting hole. Multiple copper strips 6 are connected in series through the connecting hole and the wire. Then, the copper strip 6 is inserted from top to bottom into the slot of the protrusion through the clamping block 8 and engaged with the protrusion. The copper strip 6 is connected to the clamp 1 and the clamp 1 is used to fix the copper strip 6 so as to facilitate the replacement and disassembly of the copper strip 6. At the same time, the height of the clamping block 8 is less than the height of the positioning hole so that when it is necessary to add, reduce or replace the conductive ring 5, the conductive ring 5 can move along the copper strip 6 and one end of the copper strip 6 can be removed from the clamp 1, thereby removing the conductive ring 5 from the copper strip 6.

[0024] A clamping plate 12 and a support frame 9 are respectively provided at the top or bottom of the conductive ring 5, and a locking mechanism is also provided between the support frame 9 and the clamping plate 12 to drive the clamping plate 12 and the support frame 9 to clamp the conductive ring 5, thereby fixing it. In use, the conductive ring 5 is moved to adjust the distance between adjacent conductive rings 5. After the distance is adjusted to an appropriate distance, the clamping plate 12 and the support frame 9 move closer to each other and clamp the top and bottom of the conductive ring 5, thereby limiting the change of the distance between adjacent conductive rings 5 ​​in the experiment and improving the stability of the conductive ring 5 on the copper strip 6. The positioning hole is located on one side of the center of the conductive ring 5 so that after the copper strip 6 passes through the conductive ring 5, there is still a large space inside the conductive ring 5 to allow the insulating rod specimen 4 to pass through. The support frame 9 and the clamping plate 12 are located on the side of the conductive ring 5 away from the area through which the insulating rod specimen 4 passes.

[0025] The locking mechanism includes a guide post 10, the bottom of which is fixedly connected to the top of the support frame 9. The top of the guide post 10 passes through the clamping plate 12. One end of the guide post 10 is threadedly connected to a threaded rod 11, the bottom of which contacts the clamping plate 12 to drive the clamping plate 12 closer to the support frame 9. The end of the support frame 9 is connected to the clamp 1 for positioning the support frame 9. In use, the end of the support frame 9 is fixedly connected to the protrusion by screws, and the protrusion is fixedly connected to the clamp 1 by screws, thereby supporting and fixing the support frame 9. The top of the support frame 9 is convenient for contacting the bottom of the conductive ring 5, thus providing support. After the conductive ring 5 is slid to the appropriate position, the threaded rod 11 is rotated to press the bottom of the threaded rod 11 downward against the clamping plate 12, thereby pressing and fixing the conductive ring 5 to prevent the conductive ring 5 from moving. The clamping plate 12, the support frame 9, and the support post 2 are all made of insulating material.

[0026] The conductive frame 3 includes a first conductive rod 301 and a second conductive rod 302. The first conductive rod 301 and the second conductive rod 302 are respectively connected to the corresponding support column 2. A telescopic structure is provided between the first conductive rod 301 and the second conductive rod 302 to adjust the distance between them. In use, the distance between the first conductive rod 301 and the second conductive rod 302 is adjusted by the telescopic structure to improve the stability of the device during use.

[0027] The telescopic structure includes two positioning rods 13. The ends of the two positioning rods 13 that are far apart from each other are fixedly connected to the first conductive rod 301 and the second conductive rod 302, respectively. The ends of the two positioning rods 13 that are close to each other are slidably connected to the inner wall of the positioning cylinder 14. Fasteners 15 are provided at both ends of the positioning cylinder 14 for locking and fixing the positioning rods 13. In use, the positioning rods 13 are T-shaped, with one end of the fastener 15 contacting the outer surface of the positioning rod 13 and threadedly connected to the positioning cylinder 14. When adjustment of the first conductive rod 301 and the second conductive rod 302 is required... When adjusting the spacing between rods 302, the fastener 15 is rotated to loosen the positioning rod 13, thereby adjusting the spacing. After adjustment, the fastener 15 is rotated in the opposite direction to lock the positioning rod 13, thus fixing the adjusted spacing. For the insulating rod specimen 4 without the claw part, the device also includes a hook 17. One end of the bottom of the hook 17 is connected to a clamp 16, which clamps the top of the insulating rod specimen 4. Both the hook 17 and the clamp 16 are made of conductive material, which makes it easy to suspend the insulating rod specimen 4 on the conductive frame 3 for testing.

Claims

1. A multi-group test device for insulating rods, comprising a plurality of support columns (2), the tops of which are connected to a conductive frame (3) for supporting the conductive frame (3) and suspending a plurality of insulating rod test pieces (4); characterized in that, The support column (2) is also provided with a connecting mechanism for connecting the grounding parts below several insulating rod test pieces (4) in series for unified grounding; The connecting mechanism includes two clamps (1) and a copper strip (6). The two clamps (1) are slidably connected to two support columns (2), and one side of the two clamps (1) is connected to both ends of the copper strip (6). The copper strip (6) is provided with a number of movable conductive rings (5). One side of the number of conductive rings (5) is connected to the grounding part of the corresponding insulating rod test piece (4) for uniformly grounding the number of insulating rod test pieces (4).

2. The multi-group test device for insulating rods according to claim 1, characterized in that: The outer side of the support column (2) is provided with a first scale for measuring the distance between the conductive frame (3) and the conductive ring (5).

3. The multi-group test device for insulating rods according to claim 1, characterized in that: A second scale is provided on the copper strip (6) for measuring the distance between adjacent conductive rings (5).

4. The multi-group test device for insulating rods according to claim 1, characterized in that: A positioning hole is provided on one side of the conductive ring (5), and the inner wall of the positioning hole is fitted on the outer side of the copper strip (6) so that the conductive ring (5) can slide along the copper strip (6) and adjust the spacing between adjacent conductive rings (5).

5. The multi-group test device for insulating rods according to claim 4, characterized in that: A detachable structure is provided between the clamp (1) and the copper strip (6); The detachable structure includes an L-shaped locking block (8) and a protrusion. One end of the locking block (8) is fixedly connected to one end of the copper strip (6), and the other end of the locking block (8) is engaged with the protrusion. The side of the protrusion away from the locking block (8) is fixedly connected to the clamp (1).

6. The multi-group test device for insulating rods according to claim 5, characterized in that: The height of the top and bottom of the card block (8) is less than the height of the top and bottom of the positioning hole.

7. The multi-group test device for insulating rods according to claim 1, characterized in that: The top or bottom of the conductive ring (5) is provided with a clamping plate (12) and a support frame (9), and a locking mechanism is provided between the support frame (9) and the clamping plate (12) to drive the clamping plate (12) and the support frame (9) to clamp on the conductive ring (5) and play a fixing role.

8. The multi-group test device for insulating rods according to claim 7, characterized in that: The locking mechanism includes a guide post (10), the bottom of which is fixedly connected to the top of the support frame (9), the top of which penetrates the clamping plate (12), and a threaded rod (11) is threadedly connected to one end of the guide post (10). The bottom of the threaded rod (11) is in contact with the clamping plate (12) to drive the clamping plate (12) closer to the support frame (9). The end of the support frame (9) is connected to the clamp (1) for positioning the support frame (9).

9. The multi-group test device for insulating rods according to claim 1, characterized in that: The conductive frame (3) includes a first conductive rod (301) and a second conductive rod (302). The first conductive rod (301) and the second conductive rod (302) are respectively connected to the corresponding support column (2). A telescopic structure is provided between the first conductive rod (301) and the second conductive rod (302) for adjusting the distance between the first conductive rod (301) and the second conductive rod (302). The telescopic structure includes two positioning rods (13). The ends of the two positioning rods (13) that are far apart from each other are fixedly connected to the first conductive rod (301) and the second conductive rod (302) respectively. The ends of the two positioning rods (13) that are close to each other are slidably connected to the inner wall of the positioning cylinder (14). Fasteners (15) are provided at both ends of the positioning cylinder (14) for locking and fixing the positioning rod (13).

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