A power frequency withstand voltage test device for transformer bushings

Abstract

The utility model discloses a transformer bushing power frequency withstand voltage test device, it belongs to electric power test technical field, including the wire arrangement seat, the wire arrangement seat inside is equipped with tail cavity and a plurality of placing cavities, the wire arrangement seat one end is installed the spring, the wire arrangement seat upper slide installation has the slide frame, the slide frame one end places in the tail cavity, the slide frame other end can be on the spring, install a plurality of the clamping plate that corresponds with the placing cavity one to one in the slide frame, the wire arrangement seat upper end is installed the apron, is equipped with two convex strips on the apron, the slide frame is away from the spring one end, the wire arrangement seat and the clamping plate all are equipped with the guide groove, the apron is close to the spring one end and is equipped with the abutment, is equipped with the through slot on the wire arrangement seat and the clamping plate, is equipped with the vertical hole on the apron, places the limit pin that can be on the wire arrangement seat outer wall on the vertical hole, the utility model discloses can realize the quick winding and unwinding of the wire harness, still can realize the separate dismounting of the component.

Description

Technical Field

[0001] This utility model relates to the field of power testing device technology, specifically to a transformer bushing power frequency withstand voltage test device. Background Technology

[0002] The power frequency withstand voltage test device is used to assess the insulation strength of transformer bushings. It can detect dangerous defects inside the bushings. However, during testing, due to the large number of lines and the numerous wire bundles, each with different functions, and the need for constant disassembly and reassembly of the bundles, the wire bundles may become tangled and difficult to separate. This makes it easy for testers to connect the wrong wires, leading to incorrect test results.

[0003] The publicly disclosed patent CN213517405U describes a power frequency withstand voltage testing device, such as... Figure 5 As shown: A cable management assembly is used to organize and straighten the cable harness. However, since several cable clamps 20 are directly fixed to the connecting rod 17, individual cable clamps 20 cannot be replaced. Furthermore, the fixing plate 18 is threadedly connected to the threaded rod 19, which is rotatably connected to the cable harness seat, making disassembly of the entire connecting rod 17 inconvenient. In addition, organizing and clamping the cable harness requires multiple steps, such as opening the top plate 21 and rotating the threaded rod 19, making quick adjustment impossible.

[0004] To address the problems existing in the prior art, this utility model designs and manufactures a transformer bushing power frequency withstand voltage test device to overcome the aforementioned defects. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a transformer bushing power frequency withstand voltage test device that can achieve rapid winding and unwinding of the wire harness and individual disassembly of components.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A transformer bushing power frequency withstand voltage test device includes a wire management seat, the wire management seat having a tail cavity and several placement cavities inside, the tail cavity being located at one end of the wire management seat, a spring being installed at the end of the wire management seat away from the tail cavity, a sliding frame being slidably installed on the wire management seat, one end of the sliding frame being placed inside the tail cavity, and the other end of the sliding frame being able to abut against the spring, and several clamping plates corresponding one-to-one with the placement cavities being detachably installed inside the sliding frame, the clamping plates being slidably installed inside the placement cavities respectively; The cable management seat is equipped with a cover plate at its upper end. The cover plate has two protruding strips. The end of the sliding frame away from the spring, the cable management seat, and the clamping plate are all provided with two guide grooves that cooperate with the protruding strips. The end of the cover plate near the spring is provided with a stop block. The cable management seat and the clamping plate are provided with through grooves for the stop block to pass through. The stop block can abut against the sliding frame. The cover plate is provided with a vertical hole, and a limiting pin is placed in the vertical hole. When the sliding frame abuts against the side wall of the tail cavity, the limiting pin is inserted, and the limiting pin abuts against the outer wall of the cable management seat to restrict the movement of the sliding frame.

[0007] Preferably, the sliding frame includes a front plate and a rear plate. The front plate has two insertion slots on one side, and a connecting rod is inserted into the insertion slot. The rear plate and the clamping plate have slots on both sides, and the connecting rod has a key that corresponds to each slot.

[0008] Preferably, the upper surface of the rear plate is flush with the upper surface of the cable management seat, and the abutment block can abut against the rear plate.

[0009] Preferably, the cable management base has sliding grooves on both sides that slide with the connecting rod, and the connecting rod is slidably mounted on the cable management base through the sliding grooves.

[0010] Preferably, the placement cavities are arranged at equal intervals within the cable management seat.

[0011] Preferably, the vertical hole is a rectangular hole, and the limiting pin includes a stop plate and a square post, with the upper end of the square post connected to the stop plate.

[0012] Preferably, the through groove is located between the two guide grooves.

[0013] Preferably, the through groove and the guide groove are both dovetail grooves, and the abutment and the protrusion are both dovetail tenons.

[0014] Preferably, the spring is detachably mounted on the cable management base.

[0015] The beneficial effects of this utility model are as follows: 1. This utility model restricts the movement of the two connecting rods by setting a plug groove on the front plate, which prevents the plug key on the connecting rod from coming out of the slot when the clamp is fixed. When disassembling, you only need to remove the front plate and then remove the clamp to be replaced from the connecting rod to achieve individual replacement.

[0016] 2. This utility model has a clamp plate installed on the slide frame. The clamp plate can slide in the placement cavity. A spring is installed on the cable management seat and presses against the front plate of the slide frame when there is no external force. The clamp plate pushes the cable to clamp the wire on the inner wall of the placement cavity near the spring end, thereby fixing the wire harness and playing the role of wire harness storage.

[0017] 3. This utility model sets a stop block on the cover plate. The stop block contacts the rear plate of the sliding frame. Continuing to push the cover plate can drive the entire sliding frame to move together, realizing the linkage between releasing the wire and opening the upper end of the placement cavity, reducing operation steps, improving operation efficiency, and realizing the rapid release and take-up of the wire harness. Attached Figure Description

[0018] Figure 1 This is an isometric side view of a transformer bushing power frequency withstand voltage test device according to the present invention; Figure 2 This is a schematic diagram of the cover plate structure of a transformer bushing power frequency withstand voltage test device according to the present invention; Figure 3 This is a schematic diagram of the sliding frame structure of a transformer bushing power frequency withstand voltage test device according to the present invention; Figure 4 This is a schematic diagram of the cable management base structure of a transformer bushing power frequency withstand voltage test device according to the present invention; Figure 5 This is a partial structural cross-sectional view of the existing technology.

[0019] In the diagram: 1-Front plate, 2-Spring, 3-Clamping plate, 4-Connecting rod, 5-Tail cavity, 6-Protruding strip, 7-Cover plate, 8-Abutting piece, 9-Sliding groove, 10-Rear plate, 11-Abutting block, 12-Guide groove, 13-Through groove, 14-Placement cavity, 15-Cable holder, 16-Square column, 17-Connecting rod, 18-Fixing plate, 19-Threaded rod, 20-Cable clamping plate, 21-Top plate, 22-Vertical hole. Detailed Implementation

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0021] like Figure 1-4 The transformer bushing power frequency withstand voltage test device shown includes a cable management base 15. The cable management base 15 has a tail cavity 5 and several placement cavities 14 inside, which are equidistantly arranged within the cable management base 15. The tail cavity 5 is located at one end of the cable management base 15, and a spring 2 is installed at the end of the cable management base 15 away from the tail cavity 5. The spring 2 is detachably installed on the cable management base 15 for easy disassembly.

[0022] The cable management holder 15 of this utility model has a sliding frame slidably installed on it. The sliding frame includes a front plate 1 and a rear plate 10. The front plate 1 has two insertion slots on one side, and a connecting rod 4 is inserted into the insertion slot. The rear plate 10 and the clamping plate 3 have slots on both sides. The connecting rod 4 has a key that corresponds to each slot. The two insertion slots can restrict the movement of the two connecting rods 4, preventing the key on the connecting rod 4 from coming out of the slot when the clamping plate 3 is fixed. When disassembling, you only need to remove the front plate 1 and then remove the clamping plate 3 to be replaced from the connecting rod 4 to achieve individual replacement.

[0023] Specifically, one end of the sliding frame is placed inside the tail cavity 5, and the other end of the sliding frame can abut against the spring 2. The cable management seat 15 has grooves 9 on both sides that slide with the connecting rod 4. The connecting rod 4 is slidably mounted on the cable management seat 15 through the grooves 9. The grooves 9 guide the movement of the sliding frame, allowing it to move horizontally and preventing it from shaking. This ensures that the front plate 1 can only apply axial force to the spring 2, preventing the spring 2 from being damaged by radial force and affecting its service life.

[0024] The sliding frame of this utility model has several clamping plates 3 that are detachably installed inside, each corresponding to a placement cavity 14. The clamping plates 3 are slidably installed inside the placement cavity 14. The movement of the sliding frame can drive the clamping plates 3 to move as a whole. When the spring 2 is not subjected to external force, the end away from the cable management seat 15 abuts against the front plate 1 of the sliding frame. At this time, the clamping plates 3 can clamp the wires on the inner wall of the placement cavity 14 near the end of the spring 2, thereby fixing the wire harness and playing the role of wire harness storage. Specifically, a cover plate 7 is installed on the upper end of the cable management seat 15. The cover plate 7 has two protruding strips 6. Two guide grooves 12 that mate with the protruding strips 6 are provided on the end of the sliding frame away from the spring 2, on the cable management seat 15, and on the clamping plate 3. A stop block 11 is provided on the end of the cover plate 7 near the spring 2. The upper surface of the rear plate 10 is flush with the upper surface of the cable management seat 15, and the stop block 11 can abut against the rear plate 10. A through groove 13 is provided on the cable management seat 15 and the clamping plate 3 for the stop block 11 to pass through, and the through groove 13 is located between the two guide grooves 12. The stop block 11 can abut against the sliding frame.

[0025] The through groove 13 and guide groove 12 of this utility model slide in conjunction with the protrusion 6 and the abutment block 11 to guide the translation of the cover plate 7. After the wire harness is arranged and clamped by the clamping plate 3, the cover plate 7 is slidable, covering the entire upper surface of the wire harness holder 15 and sealing the upper surface of all the placement cavities 14 to prevent the wires from coming out from the top. When it is necessary to remove or place the wires, push the cover plate 7 in the direction away from the spring 2. The protrusion 6 and the abutment block 11 can slide along the guide groove 12 and through groove 13 until the abutment block 11 contacts the rear plate 10 of the sliding frame. Continuing to push the cover plate 7 will drive the entire sliding frame to move together. The clamping plate 3 moves and gradually releases the wires. When the clamping plate 3 is released, the cover plate 7 has opened the upper end of the closed placement cavity 14, and the wires can be removed from the top. This realizes the linkage between releasing the wires and opening the upper end of the placement cavity 14, reducing operation steps, improving operation efficiency, and realizing the rapid loading and unloading of the wire harness.

[0026] Specifically, the through groove 13 and the guide groove 12 are both dovetail grooves, and the abutment block 11 and the protrusion 6 are both dovetail tenons, to prevent the cover plate 7 from tilting or wobbling during the sliding process, and to prevent the protrusion 6 from coming out of the guide groove 12 during the movement.

[0027] The cover plate 7 of this utility model has a vertical hole 22, on which a limiting pin is placed. The vertical hole 22 is a rectangular hole, and the limiting pin includes a stop plate 8 and a square post 16. The upper end of the square post 16 is connected to the stop plate 8. When the sliding frame abuts against the side wall of the tail cavity 5, the limiting pin is inserted, and the limiting pin abuts against the outer wall of the cable management seat 15 to restrict the movement of the sliding frame. The square post 16 abuts against the cable management seat 15 to restrict the cover plate 7 from moving towards the spring 2, so that the upper end of the placement cavity 14 can remain in the open state, making it convenient to put in and take out the wires.

[0028] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A transformer bushing power frequency withstand voltage test device, characterized in that, Includes a cable management base (15), which has a tail cavity (5) and several placement cavities (14) inside. The tail cavity (5) is located at one end of the cable management base (15). A spring (2) is installed at the end of the cable management base (15) away from the tail cavity (5). A sliding frame is slidably installed on the cable management base (15). One end of the sliding frame is placed in the tail cavity (5), and the other end of the sliding frame can abut against the spring (2). Several clamps (3) corresponding to the placement cavities (14) are detachably installed in the sliding frame. The clamps (3) are slidably installed in the placement cavities (14) respectively. The cable management seat (15) is equipped with a cover plate (7) at its upper end. The cover plate (7) is provided with two protrusions (6). The sliding frame away from the spring (2), the cable management seat (15), and the clamping plate (3) are all provided with two guide grooves (12) that cooperate with the protrusions (6). The cover plate (7) near the spring (2) is provided with a stop block (11). The cable management seat (15) and the clamping plate (3) are provided with through grooves (13) for the stop block (11) to pass through. The stop block (11) can abut against the sliding frame. The cover plate (7) is provided with a vertical hole (22), and a limiting pin is placed in the vertical hole (22). When the sliding frame abuts against the side wall of the tail cavity (5), the limiting pin is inserted, and the limiting pin abuts against the outer wall of the cable management seat (15) to restrict the movement of the sliding frame.

2. The transformer bushing power frequency withstand voltage test device according to claim 1, characterized in that, The sliding frame includes a front plate (1) and a rear plate (10). The front plate (1) has two insertion slots on one side, and a connecting rod (4) is inserted into the insertion slot. The rear plate (10) and the clamping plate (3) have slots on both sides, and the connecting rod (4) has a key that corresponds to the slot.

3. The transformer bushing power frequency withstand voltage test device according to claim 2, characterized in that, The upper surface of the back plate (10) is flush with the upper surface of the cable management seat (15), and the abutment (11) can abut against the back plate (10).

4. The transformer bushing power frequency withstand voltage test device according to claim 1, characterized in that, The cable management seat (15) is provided with sliding grooves (9) on both sides, which are slidably engaged with the connecting rod (4). The connecting rod (4) is slidably mounted on the cable management seat (15) through the sliding grooves (9).

5. The transformer bushing power frequency withstand voltage test device according to claim 1, characterized in that, The placement cavities (14) are arranged at equal intervals within the cable management seat (15).

6. The transformer bushing power frequency withstand voltage test device according to claim 1, characterized in that, The vertical hole (22) is a rectangular hole, and the limiting pin includes a stop plate (8) and a square post (16), with the upper end of the square post (16) connected to the stop plate (8).

7. The transformer bushing power frequency withstand voltage test device according to claim 1, characterized in that, The through groove (13) is located between the two guide grooves (12).

8. The transformer bushing power frequency withstand voltage test device according to claim 1, characterized in that, The through groove (13) and the guide groove (12) are both dovetail grooves, and the abutment (11) and the protrusion (6) are both dovetail tenons.

9. The transformer bushing power frequency withstand voltage test device according to claim 1, characterized in that, The spring (2) is detachably mounted on the cable management seat (15).

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