Auxiliary replacement device for high-voltage fuse

Abstract

The invention relates to the technical field of high-voltage fuses, in particular to a high-voltage fuse auxiliary replacement device which comprises an auxiliary connecting shaft, a mounting bottom frame and a connecting plate are arranged on the auxiliary connecting shaft, a screw groove and an auxiliary placing box are arranged on the connecting plate, an insulator column and a positioning screw groove are arranged on the mounting bottom frame, an insulator stud is arranged on the insulator column, and a screw groove is formed in the positioning screw groove. The insulator stud is provided with an insulator nut and a current-conducting plate, the current-conducting plate is provided with an installation part clamping groove, a porcelain fusion tube is arranged above the installation bottom frame, the porcelain fusion tube is provided with a porcelain fusion tube stud, the porcelain fusion tube stud is provided with a porcelain fusion tube nut, a threaded pin is arranged in a threaded groove, the installation bottom frame is provided with a fixing plate, and the fixing plate is provided with an installation hole. And a reinforcing plate is arranged on the conductive plate. The loss phenomenon caused by direct placement on the ground is avoided, the wear resistance and durability of the wall surfaces of the inner cavities of the conductive plate storage groove, the nut storage groove and the tool storage groove are improved, and the deformation of the conductive plate caused by pulling during disassembly is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of high-voltage fuses, and in particular to a high-voltage fuse auxiliary replacement device. Background Art

[0002] A high-voltage fuse is an electrical device used to protect high-voltage power systems. Its main function is to disconnect the current in the circuit to protect the power system and equipment from faults such as overload and short circuit.

[0003] The basic principle of high-voltage fuses is to use the fuse wire or fuse tube inside the fuse to disconnect the current in the circuit to protect the power system and equipment from faults such as overload and short circuit. They are widely used in power systems and industrial equipment.

[0004] High-voltage fuses are generally composed of a mounting base, an insulator column, a conductive plate, and a porcelain-fused tube body, wherein the conductive plate is fixedly connected to a mounting portion on the porcelain-fused tube body by a plurality of mounting screws.

[0005] At present, after long-term use, the existing high-voltage fuses become aged and unusable due to the aging of the porcelain-melting tube body and the conductive plate. It is necessary to dismantle the aged and unusable porcelain-melting tube body and the conductive plate and replace them with new ones. After removing multiple nuts and conductive plates, operators generally place these removed nuts and conductive plates directly on the ground. If they are not kicked or the nuts and conductive plates themselves rotate and slide, the nuts and conductive plates will be lost, which will affect the effective connection and installation of the conductive plate and the mounting part on the porcelain-melting tube body in the later stage.

[0006] In addition, the conductive plate of the existing high-voltage fuse is generally a bent structure. When performing disassembly and replacement operations, the operator will pull it hard, causing the conductive plate itself to deform, greatly reducing the pulling and deformation resistance of the conductive plate on the high-voltage fuse. Summary of the invention

[0007] The purpose of the present invention is to solve the above-mentioned shortcomings in the prior art and to propose a high-voltage fuse auxiliary replacement device.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions: Design a high-voltage fuse auxiliary replacement device, including an auxiliary connecting shaft, a mounting base and a connecting plate are provided on the auxiliary connecting shaft, a screw groove and an auxiliary placement box are provided on the connecting plate, a conductive plate placement slot and a nut placement slot are provided on the auxiliary placement box, a tool placement slot is provided on the auxiliary placement box, an insulator column and a positioning screw groove are provided on the mounting base, an insulator stud is provided on the insulator column, an insulator nut and a conductive plate are provided on the insulator stud, a mounting portion slot is provided on the conductive plate, a porcelain fusion tube is provided above the mounting base, a porcelain fusion tube stud is provided on the porcelain fusion tube, and a porcelain fusion tube nut is provided on the porcelain fusion tube stud; A threaded pin is provided in the screw groove, a positioning pin cap and an elastic pressure head are provided on the threaded pin, a damping layer is provided on the positioning pin cap, and an anti-wear pad layer is provided in the conductive plate storage groove, the nut storage groove, and the tool storage groove; The mounting base is provided with a fixing plate, the fixing plate is provided with a mounting hole, and the conductive plate is provided with a reinforcing plate.

[0009] Furthermore, the insulator stud is plugged into the conductive plate and is threadedly connected through the insulator nut, and the porcelain-fused pipe stud is clipped into the mounting portion slot and is threadedly connected to the porcelain-fused pipe nut.

[0010] Furthermore, the auxiliary connecting shaft is fixedly arranged at the front end of the mounting base, and the mounting base is rotatably arranged through the auxiliary connecting shaft and the connecting plate.

[0011] Furthermore, the number of the connecting plates is two and they are symmetrically arranged, and the auxiliary box is a rectangular parallelepiped structure as a whole and is fixed to the front end of the connecting plates.

[0012] Furthermore, the threaded pin is threadedly connected to the connecting plate, and the positioning screw groove is opened at the front end of the mounting base.

[0013] Furthermore, the elastic pressure head is a cone-shaped structure as a whole.

[0014] Furthermore, the damping layer is evenly arranged along the outer end of the positioning pin cap, and the anti-wear pad layer is evenly arranged along the inner groove walls of the conductive plate storage groove, the nut storage groove, and the tool storage groove.

[0015] Furthermore, the conductive plate as a whole is a bent structure, and the reinforcement plates are two symmetrical plates arranged at the bent portion of the conductive plate.

[0016] The high-voltage fuse auxiliary replacement device proposed by the present invention has the following beneficial effects: 1. The present invention provides a rotatable auxiliary box structure on the mounting base, and provides a conductive plate storage slot, a nut storage slot, and a tool storage slot structure on the auxiliary box, and also provides a threaded pin and a matching positioning screw slot structure. After long-term use, if the porcelain melting tube body and the conductive plate become aged and cannot be used, it is necessary to remove the aged and unusable porcelain melting tube body and the conductive plate and replace them with new ones. Before removing a plurality of nuts and conductive plates, the auxiliary box can be conveniently rotated downward to a horizontal position, and then the removed nuts and conductive plates can be placed in the corresponding storage slots. At the same time, the used open-end wrench tool can also be placed in the tool storage slot to avoid being lost by placing it directly on the ground, thereby ensuring the normal operation of the new porcelain melting tube and the conductive plate on the high-voltage fuse installed on the mounting base at a later time.

[0017] 2. The present invention further improves the wear resistance and durability of the inner cavity walls of the conductive plate storage slot, the nut storage slot, and the tool storage slot by arranging an anti-wear pad layer structure in the auxiliary storage box.

[0018] 3. The present invention greatly improves the pulling and deformation resistance of the conductive plate on the high-voltage fuse by arranging a symmetrical triangular reinforcement plate structure on the conductive plate, thereby avoiding deformation of the conductive plate itself caused by pulling during disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic side view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the auxiliary box rotation positioning state; Figure 4 For the present invention Figure 3 A partial enlarged view of the Y position in the middle; Figure 5 It is a schematic top view of the overall structure of the present invention; Figure 6 It is a schematic front view of the overall structure of the present invention.

[0020] In the figure: 1 mounting base; 11 positioning screw groove; 12 fixing plate; 13 mounting hole; 14 auxiliary connecting shaft; 2 insulator column; 21 insulator stud; 22 insulator nut; 3 conductive plate; 31 reinforcement plate; 32 mounting portion slot; 4 porcelain-melting tube; 41 porcelain-melting tube stud; 42 porcelain-melting tube nut; 5 connecting plate; 51 screw groove; 6 threaded pin; 61 positioning pin cap; 611 damping layer; 62 elastic pressure head; 7 auxiliary placement box; 71 conductive plate storage slot; 72 nut storage slot; 73 tool storage slot; 8 anti-wear pad layer. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-6 , a high-voltage fuse auxiliary replacement device, comprising an auxiliary connecting shaft 14, a mounting base 1 and a connecting plate 5 are provided on the auxiliary connecting shaft 14, a screw groove 51 and an auxiliary placement box 7 are provided on the connecting plate 5, a conductive plate placement groove 71 and a nut placement groove 72 are provided on the auxiliary placement box 7, a tool placement groove 73 is provided on the auxiliary placement box 7, an insulator column 2 and a positioning screw groove 11 are provided on the mounting base 1, an insulator stud 21 is provided on the insulator column 2, an insulator nut 22 and a conductive plate 3 are provided on the insulator stud 21, a mounting portion slot 32 is provided on the conductive plate 3, a porcelain melting tube 4 is provided above the mounting base 1, a porcelain melting tube stud 41 is provided on the porcelain melting tube 4, and a porcelain melting tube nut 42 is provided on the porcelain melting tube stud 41; A threaded pin 6 is provided in the screw groove 51, a positioning pin cap 61 and an elastic pressure head 62 are provided on the threaded pin 6, a damping layer 611 is provided on the positioning pin cap 61, and an anti-wear pad layer 8 is provided in the conductive plate storage groove 71, the nut storage groove 72, and the tool storage groove 73; A fixing plate 12 is provided on the mounting base 1, a mounting hole 13 is opened on the fixing plate 12, and a reinforcing plate 31 is provided on the conductive plate 3. The mounting base 1, fixing plate 12, insulator column 2, insulator stud 21, insulator nut 22, conductive plate 3, porcelain fuse 4, porcelain fuse stud 41, and porcelain fuse nut 42 recorded in this patent are all related structures of high-voltage fuses, which are prior art, and the working principle is also prior art. Some existing structures are not drawn and marked, and there is no need to repeat them.

[0023] The insulator stud 21 is plugged into the conductive plate 3 and threadedly connected through the insulator nut 22, and the porcelain-melting tube stud 41 is snap-fitted into the mounting portion slot 32 and threadedly connected to the porcelain-melting tube nut 42, thereby improving the stable installation of the conductive plate 3 and the porcelain-melting tube 4.

[0024] The auxiliary connecting shaft 14 is fixedly arranged at the front end of the mounting base 1. The mounting base 1 is rotatably arranged with the connecting plate 5 through the auxiliary connecting shaft 14. Combined with the connecting plate 5, the auxiliary box 7 can be conveniently rotated to an open state or a rotated vertical recovery state.

[0025] There are two symmetrically arranged connecting plates 5. The auxiliary box 7 is a rectangular parallelepiped structure as a whole and is fixed to the front end of the connecting plate 5. The auxiliary box 7 and the connecting plate 5 are made of hard alloy steel, which is durable, non-deformable and easy to weld.

[0026] The threaded pin 6 is threadedly connected to the connecting plate 5, and the positioning screw groove 11 is opened at the front end of the mounting base 1, see Figure 3When not in use, the auxiliary box 7 can be threadedly clamped and positioned on the mounting base 1. When needed, the auxiliary box 7 can be rotated and opened for use, which is very convenient.

[0027] The elastic pressing head 62 is a cone-shaped structure as a whole, and the cone-shaped structure is convenient for entering into the positioning screw groove 11.

[0028] The elastic pressure head 62 is made of high elastic rubber material, see Figure 4 When the threaded pin 6 is threaded into the positioning screw groove 11, the elastic pressure head 62 will be squeezed into contact with the positioning screw groove 11 and generate a lateral rebound force. When the lateral rebound force acts on the threaded pin 6, the anti-loosening property of the threaded pin 6 is improved.

[0029] The damping layer 611 is evenly arranged along the outer end of the positioning pin cap 61. The damping layer 611 is coated with silicone and has damping friction elasticity. When the auxiliary box 7 is rotated 90 degrees counterclockwise to the left to a horizontal state, the damping layer 611 will make damping contact with the ground to achieve positioning.

[0030] The anti-wear pad layers 8 are evenly arranged along the inner groove walls of the conductive plate storage groove 71, the nut storage groove 72, and the tool storage groove 73. The anti-wear pad layers 8 are made of hard vulcanized rubber, which is wear-resistant, puncture-resistant and durable, thereby improving the wear resistance and durability of the inner cavity walls of the conductive plate storage groove 71, the nut storage groove 72, and the tool storage groove 73.

[0031] The conductive plate 3 is a bent structure as a whole, and the reinforcement plates 31 are two symmetrical ones arranged at the bent part of the conductive plate 3. The reinforcement plate 31 is made of plastic steel, which is strong and durable and does not deform. At the same time, it is insulated and can be firmly bonded to the bent part of the conductive plate 3 by insulating epoxy resin glue, which greatly improves the tensile and deformation resistance of the conductive plate 3 on the high-voltage fuse, and avoids deformation of the conductive plate 3 itself caused by pulling during disassembly.

[0032] Working method: After long-term use, the porcelain-melting tube 4 body and the conductive plate 3 will age and become unusable. In this case, the porcelain-melting tube 4 body and the conductive plate 3 that cannot be used must be removed and replaced with new ones. Figure 3 and Figure 4 , the positioning pin cap 61 can be rotated counterclockwise to drive the threaded pin 6 to rotate counterclockwise and exit the positioning screw groove 11, and then the auxiliary placement box 7 is rotated 90 degrees counterclockwise to the left to a horizontal state, which can be referred to Figure 1 and Figure 2At this time, you can use an open-end wrench to clamp the porcelain-melting tube nut 42 and the insulator nut 22 respectively and rotate them to remove them. The removed porcelain-melting tube nut 42 and the insulator nut 22 can be directly placed in the nut storage groove 72, and then the removed old conductive plate 3 can be placed in the conductive plate storage groove 71, and the open-end wrench can be placed in the tool storage groove 73, and then the new conductive plate 3 and the new porcelain-melting tube 4 can be installed; The above operation can place the removed nut and conductive plate 3 into the corresponding storage slots on the auxiliary box 7, and the used open-end wrench tool can also be placed in the tool storage slot 73 to avoid loss caused by placing it directly on the ground, thereby ensuring the normal operation of the new porcelain melting tube 4 and conductive plate 3 on the high-voltage fuse when installed on the mounting base 1 in the later stage.

[0033] Moreover, by arranging the anti-wear pad layer 8 structure in the auxiliary placement box 7, the wear resistance and durability of the inner cavity wall surfaces of the conductive plate placement groove 71, the nut placement groove 72, and the tool placement groove 73 are further improved.

[0034] In addition, by providing a symmetrical triangular reinforcement plate 31 structure on the conductive plate 3, the tensile and deformation resistance of the conductive plate 3 on the high-voltage fuse is greatly improved, thereby avoiding deformation of the conductive plate 3 itself caused by pulling during disassembly. The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-voltage fuse auxiliary replacement device, comprising an auxiliary connecting shaft (14), characterized in that: The auxiliary connecting shaft (14) is provided with a mounting base (1) and a connecting plate (5), the connecting plate (5) is provided with a screw groove (51) and an auxiliary placement box (7), the auxiliary placement box (7) is provided with a conductive plate placement groove (71) and a nut placement groove (72), the auxiliary placement box (7) is provided with a tool placement groove (73), the mounting base (1) is provided with an insulator column (2) and a positioning screw groove (11), the insulator column (2) is provided with an insulator stud (21), the insulator stud (21) is provided with an insulator nut (22) and a conductive plate (3), the conductive plate (3) is provided with a mounting portion slot (32), a porcelain melting tube (4) is provided above the mounting base (1), the porcelain melting tube (4) is provided with a porcelain melting tube stud (41), and the porcelain melting tube stud (41) is provided with a porcelain melting tube nut (42); A threaded pin (6) is provided in the screw groove (51), a positioning pin cap (61) and an elastic pressure head (62) are provided on the threaded pin (6), a damping layer (611) is provided on the positioning pin cap (61), and an anti-wear pad layer (8) is provided in the conductive plate storage groove (71), the nut storage groove (72), and the tool storage groove (73); A fixing plate (12) is provided on the mounting base (1), a mounting hole (13) is provided on the fixing plate (12), and a reinforcing plate (31) is provided on the conductive plate (3).

2. The high-voltage fuse auxiliary replacement device according to claim 1, characterized in that: The insulator stud (21) is plugged into the conductive plate (3) and is threadedly connected via the insulator nut (22); the porcelain-fusing tube stud (41) is clipped into the mounting portion slot (32) and is threadedly connected to the porcelain-fusing tube nut (42).

3. The high-voltage fuse auxiliary replacement device according to claim 1, characterized in that: The auxiliary connecting shaft (14) is fixedly arranged at the front end of the mounting base (1), and the mounting base (1) is rotatably arranged via the auxiliary connecting shaft (14) and the connecting plate (5).

4. The high-voltage fuse auxiliary replacement device according to claim 1, characterized in that: The connecting plates (5) are two symmetrically arranged, and the auxiliary placement box (7) is a rectangular parallelepiped structure as a whole and is fixedly arranged at the front end of the connecting plate (5).

5. The high-voltage fuse auxiliary replacement device according to claim 1, characterized in that: The threaded pin (6) is threadedly connected to the connecting plate (5), and the positioning screw groove (11) is opened at the front end of the mounting base (1).

6. The high-voltage fuse auxiliary replacement device according to claim 1, characterized in that: The elastic pressing head (62) is a cone-shaped structure as a whole.

7. The high-voltage fuse auxiliary replacement device according to claim 1, characterized in that: The damping layer (611) is evenly arranged along the outer end of the positioning pin cap (61), and the anti-wear pad layer (8) is evenly arranged along the inner groove walls of the conductive plate storage groove (71), the nut storage groove (72), and the tool storage groove (73).

8. The high-voltage fuse auxiliary replacement device according to claim 1, characterized in that: The conductive plate (3) is a bent structure as a whole, and the reinforcing plates (31) are two symmetrical plates arranged at the bent portion of the conductive plate (3).

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