A wire connection device for operating box used for large transformer testing

Abstract

The invention discloses a wire wiring device for an operating box for testing a large transformer, and relates to the technical field of wiring devices. The invention comprises a base, a transformer body is fixedly installed on the top of the base, a rectangular plate is fixedly installed on the top of the transformer body, a fixing plate is fixedly installed on the top of the rectangular plate, a control box is fixedly installed on the top of the fixing plate, a wiring board is fixedly installed on a side of the control box close to a receiving end, an output end of the transformer body is provided with a wire, an end of the wire away from the transformer body is provided at the receiving end of the control box, the transformer body is electrically connected to the control box through the wire, the wire contacts the inner wall of the wiring board, and the fixing of the wire by the pressure block is effectively maintained through the cooperation of a pull rod and a clamping block, thereby improving the stability of the pressure block during the test and facilitating operators to quickly fix and pull out the wires in the wiring board.

Description

Technical Field

[0001] The invention relates to the technical field of wiring devices, in particular to a wire wiring device for an operating box used for testing a large transformer. Background Art

[0002] The conductor connection device of the operating box for large transformer testing is an important device for testing and controlling transformer performance. This device is widely used in the power industry, especially in factory testing and daily maintenance of transformers.

[0003] The patent with the patent announcement number CN213584215U relates to a wiring device with a safety protection mechanism, which belongs to the technical field of wiring devices. The wiring device with a safety protection mechanism includes an outer box body, and the left and right sides of the outer box body are both provided with a first wire opening, one side of the first wire opening is fixedly connected to a wire body fixing tube, the inner wall of the wire body fixing tube is fixedly connected to a sealing non-slip rubber, one side of the sealing non-slip rubber is provided with a leaking port, the inner bottom wall of the outer box body is fixedly connected to an insulating box, the edge of the top of the insulating box is fixedly connected to a sealing guide rail, one side of the sealing guide rail is fixedly connected to an insulating box door through a sealing hinge, and the inner bottom wall of the insulating box is fixedly connected to a spring wire pressing base. The outer box door is clamped by the matching setting between the clamping ring and the clamping buckle, and the connected wire body is placed in a sealed and insulated space by the matching setting between the insulating box, the sealing groove and the sealing guide rail, thereby achieving the insulation effect of the device.

[0004] In the above patent, the connected wires are placed in a sealed and insulated space through the cooperation between the insulating box, the sealing groove and the sealing guide rail, thereby achieving the insulation effect of the device, preventing moisture intrusion, extending the service life of the equipment, and ensuring the safety and accuracy of the test. However, after the test, the operator needs to unplug the connected wires, and opening the insulating box is time-consuming and labor-intensive, resulting in delays in the operation, affecting subsequent test arrangements, and increasing the risk of human operational errors. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a wire connection device for an operating box for testing a large transformer, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wire wiring device for an operating box for testing a large transformer, comprising a base, a transformer body is fixedly installed on the top of the base, a rectangular plate is fixedly installed on the top of the transformer body, a fixed plate is fixedly installed on the top of the rectangular plate, a control box is fixedly installed on the top of the fixed plate, a terminal block is fixedly installed on the side of the control box close to the receiving end, an output end of the transformer body is provided with an electric wire, an end of the electric wire away from the transformer body is provided at the receiving end of the control box, the transformer body is electrically connected to the control box through the electric wire, the electric wire on the transformer body is manually pulled to connect with the receiving end of the control box, so that the transformer body is electrically connected to the control box through the electric wire, the electric wire contacts the inner wall of the terminal block, and also includes a wire pressing device; wherein the wire pressing device includes a support plate, a protective plate, a pull rod, a No. 1 spring, a card block, a contact plate, a pressure block, a Z-shaped sheet, a round rod and The second spring pulls the pull rod to move in the direction away from the protective plate, and the No. 1 spring is stretched when the pull rod moves. The No. 1 spring is deformed by the stretching, and the support plate is fixedly installed on the top of the fixed plate, and the protective plate is rotatably installed on the side of the support plate close to the wiring board, and the pull rod slides through the side of the protective plate close to the support plate, and the No. 1 spring is arranged between the pull rod and the protective plate, and the clamping block is fixedly installed on the circumferential surface of the pull rod, and the contact plate is fixedly installed on the side of the protective plate close to the fixed plate, and the pressure block slides through the inner and outer walls of the wiring board, and the Z-shaped piece is arranged between the pressure block and the wiring board, and the round rod slides through the top of the pressure block, and the No. 2 spring is arranged between the round rod and the pressure block, and a circular hole is provided on the side of the support plate close to the pull rod, and the circumferential surface of the pull rod contacts the inner wall of the circular hole, and a groove is provided on the side of the pressure block close to the wire, and the Z-shaped piece itself has elasticity, and the Z-shaped piece is squeezed when the pressure block moves, and the Z-shaped piece is squeezed and deformed.

[0007] According to the above technical solution, a slot is provided on the inner wall of the circular hole, and the block contacts the inner wall of the slot. When the block moves, the surface in contact with the slot is separated, so that the limit imposed by the support plate on the protective plate is released.

[0008] According to the above technical solution, an arc surface 1 is provided at the bottom of the contact plate, and a spherical surface 1 is provided at the top of the round rod. The protective plate contacts the spherical surface 1 of the round rod during rotation. The movement of the protective plate applies downward pressure to the spherical surface 1, and the round rod moves downward under the action of the pressure.

[0009] According to the above technical solution, the device also includes an off-line device and a pushing device; the off-line device includes a carrying plate, a sliding plate, a lifting plate, a No. 1 spring plate, a C-shaped plate, an elastic plate, a Z-shaped rod, a limit plate and a No. 2 spring plate. The movement of the Z-shaped rod drives the sliding plate to move toward the wiring board. The movement of the sliding plate drives the lifting plate to move toward the wiring board. The lifting plate stops moving after moving to a predetermined position. The carrying plate is fixedly installed on the top of the fixed plate. The sliding plate is slidably installed on the top of the carrying plate. The lifting plate slides through the top of the sliding plate. The No. 1 spring plate is arranged between the lifting plate and the sliding plate. The C-shaped plate The lifting plate is fixedly mounted on the bottom of the lifting plate, the elastic sheet is rotatably mounted on the inner wall of the C-shaped plate, the Z-shaped rod is rotatably mounted on the inner and outer walls of the sliding plate, the limit plate is slidably mounted on the inner and outer walls of the lifting plate, the second spring sheet is arranged between the limit plate and the lifting plate, a semicircular groove is provided on the top of the sliding plate, before connecting the wires, the wires are passed between the sliding plate and the lifting plate so that the wires are in contact with the semicircular groove, a sliding groove is provided on the side of the carrying plate away from the wires, the Z-shaped rod is in contact with the inner wall of the sliding groove, a protrusion is fixedly mounted on the inner wall of the carrying plate, and a rectangular groove is provided on the side of the sliding plate close to the protrusion.

[0010] According to the above technical solution, the bottom of the C-shaped plate is provided with a second arc surface, and the sliding plate is provided with a positioning groove on a side close to the second arc surface. The second arc surface of the C-shaped plate moves through the positioning groove, so that the sliding plate supports the C-shaped plate.

[0011] According to the above technical solution, a third arc surface is provided on one side of the limit plate away from the second spring piece, and the third arc surface contacts the inner wall of the sliding plate. The third arc surface contacts the protrusion during movement, and the protrusion blocks the moving limit plate, so that the lifting plate continues to move and squeeze the second spring piece.

[0012] According to the above technical solution, the pushing device includes a hollow plate, a telescopic rod, a linkage plate, a resisting plate, a No. 3 spring, a T-shaped block, a No. 3 spring sheet, two inclined plates and a plurality of blocking plates. The movement of the resisting plate drives the telescopic rod to move toward the linkage plate, and the movement of the telescopic rod drives the linkage plate to move away from the hollow plate. The hollow plate is fixedly penetrated through the inner and outer walls of the carrying plate, the telescopic rod slides through the side of the hollow plate close to the protrusion, the linkage plate is fixedly installed on the side of the telescopic rod away from the hollow plate, the resisting plate is fixedly installed on the other end of the telescopic rod, and the No. 3 spring is arranged between the resisting plate and the hollow plate. The T-shaped block slides through the side of the hollow plate away from the wire, the No. 3 spring sheet is arranged between the T-shaped block and the hollow plate, the two inclined plates are fixedly mounted on the top and bottom of the abutment plate, and a number of the blocking plates are fixedly mounted on the inner wall of the hollow plate. An arc groove is provided on the top of the linkage plate, and the arc groove contacts the circumferential surface of the Z-shaped rod. When the Z-shaped rod moves, a thrust is applied to the arc groove of the linkage plate, and the linkage plate moves toward the direction of the No. 3 spring under the influence of the thrust. An arc surface four is provided on the side of the abutment plate close to the T-shaped block, and an inclined surface one is provided on the side of the T-shaped block close to the No. 3 spring.

[0013] According to the above technical solution, a second slope is provided on one side of the inclined plate away from the telescopic rod, and the blocking piece itself is elastic. The second slope of the inclined plate contacts the curved surface of the blocking piece during movement. The movement of the second slope applies pressure to the blocking piece, and the blocking piece is slightly deformed due to the pressure.

[0014] The present invention provides a wire connection device for an operating box for testing a large transformer, which has the following beneficial effects:

[0015] (1) In the wire connection device of the operating box for testing large transformers, the pressure block applies pressure to the wires, so that the wires in the terminal block are fixed. By closing the protective plate, multiple wires can be fixed at the same time, which saves the time required for fixing the wires. The protective plate is used to protect the connection point, which helps to improve the safety of the test process. The inner wall of the clamping block and the clamping slot are in contact, so that the rotation of the protective plate is limited by the support plate. Through the cooperation of the pull rod and the clamping block, the clamping block can effectively maintain the fixation of the wires, improve the stability of the clamping block during the test, and facilitate the operator to quickly fix and pull out the wires in the terminal block.

[0016] (2) In the wire connection device of the operating box for large transformer testing, the limit plate passes through the rectangular groove, so that the sliding plate applies a limit to the lifting plate. By applying a limit to the lifting plate through the rectangular groove, the operator can safely pull out multiple wires by pulling the Z-shaped rod after the test, effectively improving the safety of wire removal. The protrusion applies a block to the limit plate, so that the lifting plate moves to squeeze the second spring sheet. By installing a protrusion on the inner wall of the mounting plate, the operator can automatically release the clamping applied by the elastic sheet when pulling the Z-shaped rod, effectively improving the operating efficiency.

[0017] (3) In the wire connection device of the operating box for large transformer testing, the T-block and the side of the plate close to the telescopic rod are in contact, so that the T-block applies a limit to the reset of the plate, and the linkage plate applies a limit to the Z-shaped rod moved to the specified position, effectively avoiding accidental touching and pulling of the wires during the test, and pushing the Z-shaped rod to move after the test. The inclined plate transfers the resistance to the plate, so that the speed of the plate movement is effectively controlled by the additional resistance. The inclined plate is in intermittent contact with the blocking plate during movement, so that the speed of the linkage plate is effectively slowed down by the additional resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the position structure of the wires and the control box of the present invention;

[0020] Figure 3 It is a schematic diagram of the internal structure of the wire pressing device of the present invention;

[0021] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0022] Figure 5 This is a schematic diagram of the position structure of the elastic sheet and the wire of the present invention;

[0023] Figure 6 This is a schematic diagram of the internal structure of the off-line device of the present invention;

[0024] Figure 7 It is a schematic diagram of the position structure of the rectangular groove and the limiting plate of the present invention;

[0025] Figure 8 It is a schematic diagram of the internal structure of the pushing device of the present invention;

[0026] Fig. 9 It is a schematic diagram of the position structure of the inclined plate and the blocking piece of the present invention.

[0027] In the figure: 1. base; 2. transformer body; 3. rectangular plate; 4. fixing plate; 5. control box; 6. terminal block; 7. wire; 8. support plate; 9. protective plate; 10. pull rod; 11. spring No. 1; 12. block; 13. contact plate; 14. pressure block; 15. Z-shaped piece; 16. round rod; 17. spring No. 2; 181. carrying plate; 182. sliding plate; 183. lifting plate; 184. spring No. 1; 185. C-shaped plate; 186. elastic piece; 187. Z-shaped rod; 188. limit plate; 189. spring No. 2; 191. hollow plate; 192. telescopic rod; 193. linkage plate; 194. abutment plate; 195. spring No. 3; 196. T-shaped block; 197. spring No. 3; 198. inclined plate; 199. blocking piece. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 4, one embodiment of the present invention is: a wire wiring device for an operating box for testing a large transformer, comprising a base 1, a transformer body 2 is fixedly installed on the top of the base 1, a rectangular plate 3 is fixedly installed on the top of the transformer body 2, a fixed plate 4 is fixedly installed on the top of the rectangular plate 3, a control box 5 is fixedly installed on the top of the fixed plate 4, a terminal block 6 is fixedly installed on the side of the control box 5 close to the receiving end, an output end of the transformer body 2 is provided with a wire 7, an end of the wire 7 away from the transformer body 2 is provided at the receiving end of the control box 5, the transformer body 2 is electrically connected to the control box 5 through the wire 7, the wire 7 is in contact with the inner wall of the terminal block 6, and also includes a wire pressing device; wherein the wire pressing device includes a support plate 8, a protective plate 9, a pull rod 10, a No. 1 spring 11, a block 12, a contact plate 13, a pressure block 14, a Z-shaped sheet 15, a round rod 16 and a No. 2 spring 17, the support plate 8 is fixedly installed on the top of the fixed plate 4, and the protective plate 9 is rotatably installed On the side of the support plate 8 close to the terminal block 6, the pull rod 10 slides through the side of the protective plate 9 close to the support plate 8, the No. 1 spring 11 is arranged between the pull rod 10 and the protective plate 9, the block 12 is fixedly installed on the circumferential surface of the pull rod 10, the contact plate 13 is fixedly installed on the side of the protective plate 9 close to the fixed plate 4, the pressure block 14 slides through the inner and outer walls of the terminal block 6, the Z-shaped piece 15 is arranged between the pressure block 14 and the terminal block 6, the round rod 16 slides through the top of the pressure block 14, the No. 2 spring 17 is arranged between the round rod 16 and the pressure block 14, a circular hole is opened on the side of the support plate 8 close to the pull rod 10, the circumferential surface of the pull rod 10 contacts the inner wall of the circular hole, a groove is opened on the side of the pressure block 14 close to the wire 7, the Z-shaped piece 15 itself is elastic, and multiple wires 7 can be fixed at the same time by closing the protective plate 9, which saves the time required for fixing the wires 7, and the protective plate 9 is used to protect the wiring point, which helps to improve the safety of the test process.

[0030] A card slot is provided on the inner wall of the circular hole, and the card block 12 contacts the inner wall of the card slot. Through the cooperation between the pull rod 10 and the card block 12, the fixation of the wire 7 by the pressure block 14 is effectively maintained, thereby improving the stability during the test and facilitating the operator to quickly fix and pull out the wire 7 in the terminal block 6.

[0031] The bottom of the contact plate 13 is provided with an arc surface 1, and the top of the round rod 16 is provided with a spherical surface 1. By providing the spherical surface 1 on the top of the round rod 16, the operator can more stably drive the round rod 16 to move downward when rotating the protection plate 9.

[0032] When the present embodiment is working, the wire 7 on the transformer body 2 is manually pulled to connect with the receiving end of the control box 5, so that the transformer body 2 is electrically connected with the control box 5 through the wire 7, and one hand pulls the pull rod 10 to move away from the protective plate 9. When the pull rod 10 moves, the spring 11 is stretched, and the spring 11 is deformed by the stretching. At the same time, the pull rod 10 moves to drive the block 12 to move away from the protective plate 9. When the block 12 moves, the surface in contact with the slot is separated, so that the limit imposed by the support plate 8 on the protective plate 9 is released. After the limit is released, the other hand pushes the protective plate 9 to rotate downward, and the rotation of the protective plate 9 drives the pull rod 10 to rotate, and the rotation of the pull rod 10 drives the block 12 to rotate. At the same time, the protective plate 9 The rotation drives the contact plate 13 to move downward, and the protective plate 9 contacts the spherical surface of the round rod 16 during the rotation. The protective plate 9 moves and applies downward pressure to the spherical surface, and the round rod 16 moves downward under the action of the pressure. Since the elastic force of the No. 2 spring 17 is greater than the elastic force of the Z-shaped piece 15, the round rod 16 moves and drives the pressing block 14 to move downward. When the pressing block 14 moves, it squeezes the Z-shaped piece 15, and the Z-shaped piece 15 is squeezed and deformed. At the same time, the groove of the pressing block 14 contacts the circumferential surface of the wire 7 during the movement. The pressing block 14 continues to move to apply pressure to the wire 7. The wire 7 in contact with the inner wall of the terminal block 6 is fixed under the action of pressure. By closing the protective plate 9, multiple wires 7 can be fixed at the same time, saving fixation time. The time required for the wire 7 is used, and the connection point is protected by the protective plate 9, which helps to improve the safety of the test process. The round rod 16 continues to move and squeeze the No. 2 spring 17. The No. 2 spring 17 is squeezed and deformed. The deformed No. 2 spring 17 applies a reaction force to the pressure block 14 under the action of its own elasticity. The pressure block 14 increases the pressure applied to the wire 7 under the action of the reaction force. When the protective plate 9 rotates to the specified position, the pull rod 10 is released, and the deformed No. 1 spring 11 recovers and drives the pull rod 10 to move in the direction of the protective plate 9. The movement of the pull rod 10 drives the block 12 to move in the direction of the protective plate 9. The block 12 contacts the inner wall of the slot during the movement, so that the rotation of the protective plate 9 is limited by the support plate 8. After the test, the operator repeats the above operation to release the limit of the protective plate 9, and then pushes the protective plate 9 to rotate upward. The protective plate 9 gradually reduces the pressure applied to the round rod 16 during the rotation. While the pressure is reduced, the deformed Z-shaped piece 15 and the deformed No. 2 spring 17 gradually recover under the action of their own elasticity, so that the pressure applied by the pressure block 14 on the wire 7 is gradually reduced. When the contact surface between the pressure block 14 and the wire 7 is separated, the wire 7 is manually pulled to release the electrical connection between the transformer body 2 and the control box 5. Through the cooperation of the pull rod 10 and the clamping block 12, the fixation of the pressure block 14 on the wire 7 is effectively maintained, thereby improving the stability during the test and facilitating the operator to quickly fix and pull out the wire 7 in the terminal block 6.

[0033] See also Figure 1-Figure 9On the basis of the above embodiment, another embodiment of the present invention further includes an off-line device and a pushing device; the off-line device includes a carrying plate 181, a sliding plate 182, a lifting plate 183, a No. 1 spring piece 184, a C-shaped plate 185, an elastic piece 186, a Z-shaped rod 187, a limiting plate 188 and a No. 2 spring piece 189, the carrying plate 181 is fixedly mounted on the top of the fixed plate 4, the sliding plate 182 is slidably mounted on the top of the carrying plate 181, the lifting plate 183 slides through the top of the sliding plate 182, the No. 1 spring piece 184 is arranged between the lifting plate 183 and the sliding plate 182, the C-shaped plate 185 is fixedly mounted on the bottom of the lifting plate 183, and the elastic piece 186 is rotatably mounted on the C-shaped rod The inner wall of the plate 185, the Z-shaped rod 187 rotates and penetrates the inner and outer walls of the sliding plate 182, the limit plate 188 slides and penetrates the inner and outer walls of the lifting plate 183, the second spring piece 189 is arranged between the limit plate 188 and the lifting plate 183, the top of the sliding plate 182 is provided with a semicircular groove, the side of the carrying plate 181 away from the wire 7 is provided with a slide groove, the Z-shaped rod 187 contacts the inner wall of the slide groove, the inner wall of the carrying plate 181 is fixedly installed with a protrusion, and the side of the sliding plate 182 close to the protrusion is provided with a rectangular groove, and the lifting plate 183 is limited by the rectangular groove, so that the operator can safely pull out multiple wires 7 by pulling the Z-shaped rod 187 after the test, effectively improving the safety of the wire removal process.

[0034] The bottom of the C-shaped plate 185 is provided with an arc surface 2, and the sliding plate 182 is provided with a positioning groove on one side close to the arc surface 2. By providing the positioning groove on the sliding plate 182, the C-shaped plate 185 and the positioning groove are more stable after contact, which helps to improve the stability during the test.

[0035] The limiting plate 188 has an arc surface three on one side away from the second spring piece 189, and the arc surface three contacts the inner wall of the sliding plate 182. By installing a protrusion on the inner wall of the mounting plate 181, the operator can automatically release the clamping applied by the elastic piece 186 when pulling the Z-shaped rod 187, thereby effectively improving the operating efficiency.

[0036] The pushing device includes a hollow plate 191, a telescopic rod 192, a linkage plate 193, a plate 194, a third spring 195, a T-shaped block 196, a third spring sheet 197, two inclined plates 198 and a plurality of blocking sheets 199. The hollow plate 191 is fixedly penetrated through the inner and outer walls of the carrying plate 181, the telescopic rod 192 slides through the side of the hollow plate 191 close to the protrusion, the linkage plate 193 is fixedly mounted on the side of the telescopic rod 192 away from the hollow plate 191, the plate 194 is fixedly mounted on the other end of the telescopic rod 192, the third spring 195 is arranged between the plate 194 and the hollow plate 191, the T-shaped block 196 slides through the side of the hollow plate 191 away from the wire 7 The third spring piece 197 is arranged between the T-shaped block 196 and the hollow plate 191, two inclined plates 198 are fixedly installed on the top and bottom of the abutment plate 194, and a number of blocking plates 199 are fixedly installed on the inner wall of the hollow plate 191. An arc groove is provided on the top of the linkage plate 193, and the arc groove contacts the circumferential surface of the Z-shaped rod 187. An arc surface four is provided on one side of the abutment plate 194 close to the T-shaped block 196, and an inclined surface one is provided on one side of the T-shaped block 196 close to the third spring 195. The linkage plate 193 is used to limit the Z-shaped rod 187 moved to the specified position, so as to effectively avoid accidental touching and pulling of the wire 7 during the test, and push the Z-shaped rod 187 to move after the test.

[0037] A second slope is provided on one side of the inclined plate 198 away from the telescopic rod 192. The blocking piece 199 itself is elastic. The inclined plate 198 is in intermittent contact with the blocking piece 199 during movement, so that the pushing speed of the linkage plate 193 is effectively slowed down by additional resistance.

[0038] When the present embodiment is working, before connecting the wire 7, the wire 7 is passed between the sliding plate 182 and the lifting plate 183, so that the wire 7 contacts the semicircular groove, and then the Z-shaped rod 187 is pushed to move toward the wiring board 6. The movement of the Z-shaped rod 187 drives the sliding plate 182 to move toward the wiring board 6. The movement of the sliding plate 182 drives the lifting plate 183 to move toward the wiring board 6. The lifting plate 183 moves to a predetermined position and then stops moving. When the operator pushes the protective plate 9 to rotate downward, the protective plate 9 rotates and drives the contact plate 13 to move downward. The arc surface of the contact plate 13 contacts the top of the lifting plate 183 during the movement. The movement of the arc surface drives the lifting plate 183 to move downward. The movement of the lifting plate 183 drives the C-shaped plate 185 to move downward. The movement of plate 185 drives elastic sheet 186 to move downward. During the movement, elastic sheet 186 contacts wire 7. Wire 7 blocks the center position of elastic sheet 186, so that C-shaped plate 185 moves to pull both ends of elastic sheet 186 to bend downward. During the bending deformation, elastic sheet 186 fits the curved surface of wire 7. Arc surface 2 of C-shaped plate 185 continues to move through the positioning groove, so that elastic sheet 186 cooperates with the semicircular groove to clamp wire 7. While lifting plate 183 moves, limit plate 188 is driven downward. Arc surface 3 of limit plate 188 is separated from the surface in contact with sliding plate 182 during the movement. The deformed second spring sheet 189 recovers and drives limit plate 188 to move away from lifting plate 183. Limit plate 188 During the movement, the sliding plate 182 passes through the rectangular groove, so that the movement of the lifting plate 183 is limited by the sliding plate 182. After the test is completed, the operator releases the fixation of the pressing block 14 on the wire 7 in a standardized manner, and pulls the Z-shaped rod 187 to move away from the terminal block 6. The movement of the Z-shaped rod 187 drives the sliding plate 182 to move away from the terminal block 6. The movement of the sliding plate 182 drives the lifting plate 183 to move away from the terminal block 6. The movement of the lifting plate 183 drives the C-shaped plate 185 to move away from the terminal block 6. The movement of the C-shaped plate 185 drives the elastic sheet 186 to move away from the terminal block 6. During the movement of the elastic sheet 186, a pulling force is applied to the wire 7. The wire 7 is separated from the receiving end of the control box 5 under the action of the pulling force. The rectangular groove imposes a limit on the lifting plate 183, so that the operator can safely pull out multiple wires 7 by pulling the Z-shaped rod 187 after the test, effectively improving the safety of wire removal. When the lifting plate 183 moves, it drives the limit plate 188 to move away from the terminal block 6. The arc surface 3 contacts the protrusion during the movement, and the protrusion blocks the moving limit plate 188, so that the lifting plate 183 continues to move and squeeze the second spring piece 189. The second spring piece 189 is squeezed and deformed. At the same time, the limit plate 188 is separated from the surface in contact with the rectangular groove. The deformed first spring piece 184 recovers and drives the lifting plate 183 to move upward. The movement of the lifting plate 183 drives the C-shaped plate 185 to move upward. The movement of the C-shaped plate 185 and the surface in contact with the positioning groove are separated.At the same time, the movement of the C-shaped plate 185 drives the elastic sheet 186 to move upward, and the surface of the elastic sheet 186 in contact with the wire 7 is separated during the movement, so that the clamping of the elastic sheet 186 on the wire 7 is released, and the operator pulls out the wire 7 to complete the wire removal work. By installing a protrusion on the inner wall of the mounting plate 181, the clamping of the elastic sheet 186 is automatically released when the operator pulls the Z-shaped rod 187, which effectively improves the operating efficiency;

[0039] When the Z-shaped rod 187 moves, a thrust is applied to the arc groove of the linkage plate 193. The linkage plate 193 is affected by the thrust and moves in the direction of the No. 3 spring 195. The movement of the linkage plate 193 drives the telescopic rod 192 to move in the direction of the No. 3 spring 195. The movement of the telescopic rod 192 drives the support plate 194 to move in the direction of the No. 3 spring 195. The support plate 194 moves to squeeze the No. 3 spring 195. The No. 3 spring 195 is squeezed and deformed. The deformed No. 3 spring 195 stores energy under the action of its own elasticity. When the support plate 194 moves, it drives the inclined plate 198 to move in the direction of the No. 3 spring 195. The inclined surface 2 of the inclined plate 198 contacts the curved surface of the blocking plate 199 during the movement. The movement of the inclined surface 2 applies pressure to the blocking plate 199 , the blocking piece 199 is slightly deformed by the pressure, the inclined plate 198 continues to move and separates from the contact surface of the blocking piece 199, the arc surface four of the abutment plate 194 contacts the inclined surface one of the T-shaped block 196 during the movement, the arc surface four moves and applies a thrust to the inclined surface one, and the T-shaped block 196 moves away from the hollow plate 191 under the action of the thrust, and the T-shaped block 196 moves to stretch the third spring piece 197, and the third spring piece 197 is stretched and deformed, the arc surface four continues to move and separates from the inclined surface one, and the deformed third spring piece 197 recovers and drives the T-shaped block 196 to move toward the hollow plate 191, and the T-shaped block 196 contacts the side of the abutment plate 194 close to the telescopic rod 192 during the movement, so that the T-shaped block 196 exerts a thrust on the abutment plate 194. The reset applies a limit, so that the linkage plate pair 193 that stops moving applies a limit to the Z-shaped rod 187. After the test, pull the T-shaped block 196 to move in the direction away from the hollow plate 191. The surface of the T-shaped block 196 in contact with the abutment plate 194 is separated during the movement, so that the deformed No. 3 spring 195 quickly recovers and drives the abutment plate 194 to move in the direction of the linkage plate 193. The movement of the abutment plate 194 drives the telescopic rod 192 to move in the direction of the linkage plate 193. The movement of the telescopic rod 192 drives the linkage plate 193 to move in the direction away from the hollow plate 191. The movement of the linkage plate 193 drives the Z-shaped rod 187 to move in the direction away from the hollow plate 191. The linkage plate 193 applies a limit to the Z-shaped rod 187 that moves to the specified position. The invention effectively avoids the accidental touching and pulling of the electric wire 7 during the test, and pushes the Z-shaped rod 187 to move after the test. When the butt plate 194 is reset, it drives the inclined plate 198 to move toward the linkage plate 193. The inclined plate 198 contacts the blocking piece 199 during the movement. The movement of the inclined plate 198 applies a thrust to the blocking piece 199. The blocking piece 199 is bent toward the linkage plate 193 under the influence of the thrust. The blocking piece 199 applies a resistance to the inclined plate 198 during the bending process. The inclined plate 198 transmits the resistance to the butt plate 194, so that the moving speed of the butt plate 194 is effectively controlled by the influence of the additional resistance. The inclined plate 198 intermittently contacts the blocking piece 199 during the movement, so that the pushing speed of the linkage plate 193 is effectively slowed down by the additional resistance.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conductor connection device for an operating box for testing a large transformer, comprising a base (1), characterized in that: It also comprises a wire pressing device, a wire removing device and a pushing device, wherein a transformer body (2) is fixedly mounted on the top of the base (1), a rectangular plate (3) is fixedly mounted on the top of the transformer body (2), a fixing plate (4) is fixedly mounted on the top of the rectangular plate (3), a control box (5) is fixedly mounted on the top of the fixing plate (4), a terminal block (6) is fixedly mounted on the side of the control box (5) close to the receiving end, an electric wire (7) is arranged at the output end of the transformer body (2), an end of the electric wire (7) away from the transformer body (2) is arranged at the receiving end of the control box (5), the transformer body (2) is electrically connected to the control box (5) via the electric wire (7), and the electric wire (7) contacts the inner wall of the terminal block (6); The wire pressing device comprises a support plate (8), a protective plate (9), a pull rod (10), a first spring (11), a block (12), a contact plate (13), a pressure block (14), a Z-shaped sheet (15), a round rod (16) and a second spring (17), wherein the support plate (8) is fixedly mounted on the top of the fixed plate (4), the protective plate (9) is rotatably mounted on a side of the support plate (8) close to the terminal board (6), the pull rod (10) slides through a side of the protective plate (9) close to the support plate (8), the first spring (11) is arranged between the pull rod (10) and the protective plate (9), and the block (12) is fixedly mounted on the circumferential surface of the pull rod (10). The contact plate (13) is fixedly mounted on a side of the protective plate (9) close to the fixed plate (4); the pressing block (14) slides through the inner and outer walls of the terminal block (6); the Z-shaped sheet (15) is arranged between the pressing block (14) and the terminal block (6); the round rod (16) slides through the top of the pressing block (14); the second spring (17) is arranged between the round rod (16) and the pressing block (14); a circular hole is provided on a side of the support plate (8) close to the pull rod (10); the circumferential surface of the pull rod (10) contacts the inner wall of the circular hole; a groove is provided on a side of the pressing block (14) close to the wire (7); and the Z-shaped sheet (15) itself has elasticity; The inner wall of the circular hole is provided with a slot, and the clamping block (12) is in contact with the inner wall of the slot; The bottom of the contact plate (13) is provided with an arc surface 1, and the top of the round rod (16) is provided with a spherical surface 1; The de-line device comprises a carrying plate (181), a sliding plate (182), a lifting plate (183), a first spring piece (184), a C-shaped plate (185), an elastic sheet (186), a Z-shaped rod (187), a limit plate (188) and a second spring piece (189); the carrying plate (181) is fixedly mounted on the top of the fixed plate (4); the sliding plate (182) is slidably mounted on the top of the carrying plate (181); the lifting plate (183) slides through the top of the sliding plate (182); the first spring piece (184) is arranged between the lifting plate (183) and the sliding plate (182); the C-shaped plate (185) is fixedly mounted on the bottom of the lifting plate (183); The elastic sheet (186) is rotatably mounted on the inner wall of the C-shaped plate (185), the Z-shaped rod (187) is rotatably penetrated through the inner and outer walls of the sliding plate (182), the limit plate (188) is slidably penetrated through the inner and outer walls of the lifting plate (183), the second spring sheet (189) is arranged between the limit plate (188) and the lifting plate (183), a semicircular groove is provided on the top of the sliding plate (182), a sliding groove is provided on a side of the carrying plate (181) away from the electric wire (7), the Z-shaped rod (187) contacts the inner wall of the sliding groove, a protrusion is fixedly mounted on the inner wall of the carrying plate (181), and a rectangular groove is provided on a side of the sliding plate (182) close to the protrusion; The bottom of the C-shaped plate (185) is provided with a second arc surface, and a positioning groove is provided on a side of the sliding plate (182) close to the second arc surface; A third arc surface is formed on a side of the limit plate (188) away from the second spring sheet (189), and the third arc surface is in contact with the inner wall of the sliding plate (182); The pushing device comprises a hollow plate (191), a telescopic rod (192), a linkage plate (193), a stop plate (194), a No. 3 spring (195), a T-shaped block (196), a No. 3 spring sheet (197), two inclined plates (198) and a plurality of blocking plates (199); the hollow plate (191) is fixedly passed through the inner and outer walls of the carrying plate (181); the telescopic rod (192) is slidably passed through a side of the hollow plate (191) close to the protrusion; the linkage plate (193) is fixedly mounted on a side of the telescopic rod (192) away from the hollow plate (191); the stop plate (194) is fixedly mounted on the other end of the telescopic rod (192); the No. 3 spring (195) is arranged between the stop plate (194) and the stop plate (194). The hollow plates (191) are provided between the T-shaped block (196) and the hollow plate (191), the T-shaped block (196) slides through a side of the hollow plate (191) away from the electric wire (7), the third spring sheet (197) is arranged between the T-shaped block (196) and the hollow plate (191), the two inclined plates (198) are fixedly mounted on the top and bottom of the abutment plate (194), a plurality of blocking sheets (199) are fixedly mounted on the inner wall of the hollow plate (191), the top of the linkage plate (193) is provided with an arc groove, the arc groove contacts the circumferential surface of the Z-shaped rod (187), the side of the abutment plate (194) close to the T-shaped block (196) is provided with an arc surface four, and the side of the T-shaped block (196) close to the third spring (195) is provided with an inclined surface one; A second inclined surface is provided on a side of the inclined plate (198) away from the telescopic rod (192), and the blocking plate (199) itself is elastic.

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