Power transformer outgoing line structure

Abstract

The invention discloses a power transformer outgoing line structure, and relates to the technical field of transformers. The transformer comprises a transformer body, an insulation box is fixedly connected to the top of the transformer body, a mounting plate is fixedly connected to the top of the transformer body, a lower fixing groove plate is fixedly connected to the top of the mounting plate, and two screw rods are rotatably connected to the top of the lower fixing groove plate; and the circumferential surfaces of the two screw rods are in threaded connection with upper fixing groove plates. Through the arrangement of the L-shaped plate, the elastic telescopic rod, the U-shaped plate and the compression roller, the movement of the L-shaped plate can drive the elastic telescopic rod to move, the movement of the elastic telescopic rod can drive the U-shaped plate to move, the movement of the U-shaped plate can drive the compression roller to move, and the movement of the compression roller fixes leads smaller than the thickness and the number of the leads. Therefore, it is ensured that it is not easy to bend, loosen or contact other parts, thereby reducing the risk of breakage.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, in particular to a lead-out wire structure of a power transformer. Background Art

[0002] The lead wire of a power transformer is usually composed of a conductor, an insulation layer and an outer sheath. The conductor part is used for the conduction of current and is usually made of copper or aluminum. The insulation layer is wrapped around the outside of the conductor to isolate the current, prevent short circuits and protect equipment. The outer sheath protects the insulation layer to prevent mechanical damage and environmental impacts. It is usually made of wear-resistant and weather-resistant materials. The lead wire is connected to the lead-out terminal of the transformer to ensure the safe transmission of electricity.

[0003] A Chinese patent with patent announcement number CN211858367U discloses a transformer lead wire structure, including a substrate, an insulating box is fixedly connected to the front end of the substrate, a transformer body is fixedly installed on the lower end of the insulating box and the lower end of the substrate, a No. 2 fixing plate is fixedly installed on the rear part of the upper end of the substrate, a No. 1 fixing plate is arranged above the No. 2 fixing plate, and the No. 1 fixing plate and the left part of the No. 2 fixing plate are both threadedly connected with a connecting mechanism, and three leads are commonly passed through the No. 1 fixing plate and the No. 2 fixing plate. The transformer lead wire structure described in the utility model can install leads of different thicknesses and quantities by adjusting the spacing between the No. 1 fixing plate and the No. 2 fixing plate, so that the lead wire structure has a wider range of applications, and the enameled wire paint and the sleeve can avoid cracks on the paint surface after the lead wire is repeatedly bent, so that the transformer can operate normally, and the insulating box is a closed structure made of rubber, so that the lead wire structure has good insulation performance.

[0004] However, the current lead-out wire device has the following problems: the lead-out wire device can only fix lead wires of a certain thickness and number or greater than the thickness and number, making it difficult to fix lead wires less than the thickness and number, which may cause the lead wires to bend, loosen or contact other components, thereby increasing the risk of breakage. Therefore, we propose a lead-out wire structure for a power transformer. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a lead-out wire structure for a power 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 power transformer lead-out line structure, comprising a transformer body, the top of the transformer body is fixedly connected to an insulating box, the top of the transformer body is fixedly connected to a mounting plate, the top of the mounting plate is fixedly connected to a lower fixed slot plate, the top of the lower fixed slot plate is rotatably connected to two screws, the circumferential surfaces of the two screws are threadedly connected to an upper fixed slot plate, the top of the upper fixed slot plate and the bottom of the lower fixed slot plate are fixedly connected to an L-shaped plate, the bottom of the inner wall of the L-shaped plate is fixedly connected to an elastic telescopic rod, the bottom of the elastic telescopic rod is fixedly connected to a U-shaped plate, the inner wall of the U-shaped plate is fixedly connected to a pressure roller, the bottom of the pressure roller is provided with an overheating prevention device, the upper fixed slot plate An anti-breakage device is provided on the back side, and the front end of the lead to be installed is inserted into the insulating box so that the front end of the lead passes through the lead lead hole, and then the lower fixed slot plate and the upper fixed slot plate are covered, and the screw is rotated by the handle. The rotation of the screw will press the lower fixed slot plate and the upper fixed slot plate tightly, thereby fixing the lead, but the lower fixed slot plate and the upper fixed slot plate can only fix leads of a certain thickness and number or greater than the thickness and number, so it is difficult to fix leads less than the thickness and number. Therefore, when the lower fixed slot plate and the upper fixed slot plate move, the L-shaped plate will be driven to move, the movement of the L-shaped plate will drive the elastic telescopic rod to move, the movement of the elastic telescopic rod will drive the U-shaped plate to move, and the movement of the U-shaped plate will drive the pressure roller to move.

[0007] According to the above technical solution, the top of the U-shaped plate is hinged with a hinge rod 1, and the end of the hinge rod 1 away from the U-shaped plate is hinged with a friction block, the side of the L-shaped plate is fixedly connected with a fixed block, and the side of the L-shaped plate is fixedly connected with a friction plate, the top of the friction block is slidably connected to the bottom of the fixed block, and the friction plate is located on the displacement trajectory of the friction block, and the friction plate is in contact with the upper fixed groove plate. When the pressure roller contacts the lead wire, the pressure roller drives the U-shaped plate to squeeze the elastic telescopic rod through the interaction between the lead wire and the pressure roller force, and the movement of the U-shaped plate will drive the friction block to move through the hinge rod 1, and the movement of the friction block will resist the friction plate. The contact between the friction block and the friction plate will generate resistance, and the resistance will stop the movement of the U-shaped plate through the hinge rod 1.

[0008] According to the above technical solution, the anti-overheating device includes a fixed groove, the inner wall of the fixed groove is opened on the bottom of the pressure roller, the top of the inner wall of the fixed groove is fixedly connected with a liquid storage cotton, the inner wall of the fixed groove is slidably connected with a pressure block, and a plurality of guide grooves are opened at the bottom of the pressure block. A spring is arranged between the pressure block and the fixed groove, the liquid storage cotton is in contact with the pressure block, and the movement of the pressure roller will drive the pressure block to move, and the movement of the pressure block will contact the lead wire, so that through the action of the lead wire force, the pressure block will move toward the inside of the pressure roller, and the movement of the pressure block will squeeze the liquid storage cotton.

[0009] The cam is connected to the locking plate by an L-shaped spring which is fixed to the locking plate, and the cam is connected to the locking plate by an L-shaped spring which is fixed to the locking plate by an L-shaped spring. Connected to the side surfaces of multiple fan plates, the arc block 2 is located on the displacement tracks of multiple arc blocks 1. The movement of the pressure block will drive the L-shaped block to move, the movement of the L-shaped block will drive the long block to move, the movement of the long block will drive the arc block 1 to move, the movement of the arc block 1 will conflict with the arc block 2, so that the arc block 2 drives the long rod to squeeze the spring 2. When the movement of the arc block 1 does not conflict with the arc block 2, the spring 2 will drive the long rod and the arc block 2 to reset through its own elastic force, and so on, so that the long rod can realize reciprocating motion, and the reciprocating motion of the long rod will drive the moving rod to reciprocate on the inner wall of the fan plate.

[0010] According to the above technical solution, the anti-fracture device includes a connecting block, the side of the connecting block is fixedly connected to the back of the upper fixed groove plate, the side of the connecting block away from the upper fixed groove plate is hinged with a hinged rod 2, the end of the hinged rod 2 away from the connecting block is hinged with a slider, the side of the slider away from the hinged rod 2 is hinged with a hinged rod 3, the end of the hinged rod 3 away from the slider is hinged with a moving block, a sliding groove is provided on the top of the mounting plate, the bottom of the slider is slidably connected to the bottom of the inner wall of the sliding groove, the bottom of the inner wall of the sliding groove is fixedly connected with a track block, and the moving The side of the block is slidably connected to the inner wall of the track block, and the side of the moving block away from the track block is fixedly connected to a Z-shaped block, and the top of the Z-shaped block is fixedly connected to a support plate. When the upper fixed slot plate moves, the movement of the upper fixed slot plate will drive the connecting block to move, and the movement of the connecting block will push the slider to move through the hinge rod 2, and the movement of the slider will push the moving block to move upward along the track block through the hinge rod 3. The movement of the moving block will drive the Z-shaped block to move, and the movement of the Z-shaped block will drive the support plate to move, and the support plate will contact the lead.

[0011] According to the above technical solution, two partitions are fixedly connected to the top of the support plate, and the two partitions are symmetrical to each other along the central axis of the support plate. The movement of the support plate will drive the partition to move, and the movement of the partition will separate different leads.

[0012] The present invention provides a power transformer lead wire structure, which has the following beneficial effects:

[0013] (1) The present invention arranges an upper fixed groove plate, a screw rod, a lower fixed groove plate, an L-shaped plate, an elastic telescopic rod, a U-shaped plate, and a pressure roller so that the movement of the L-shaped plate will drive the movement of the elastic telescopic rod, the movement of the elastic telescopic rod will drive the movement of the U-shaped plate, the movement of the U-shaped plate will drive the pressure roller to move, and the movement of the pressure roller fixes the leads that are smaller than the specified thickness and quantity, thereby ensuring that they will not bend, loosen, or contact other components, thereby reducing the risk of breakage; at the same time, the arrangement of the U-shaped plate, the pressure roller, the hinged rod 1, the friction block, and the friction plate makes it possible for the contact between the friction block and the friction plate to generate resistance, and the resistance will cause the U-shaped plate to stop moving through the hinged rod 1, and the stopping of the U-shaped plate will cause the pressure roller to stop moving, and the stopping of the pressure roller enhances the effect of fixing the leads that are smaller than the specified thickness and quantity.

[0014] (2) The present invention sets an anti-overheating device so that the liquid storage cotton, the pressure block and the guide groove cooperate to move the pressure block toward the inside of the pressure roller. The movement of the pressure block will squeeze the liquid storage cotton, so that the coolant inside the liquid storage cotton will flow to the surface of the lead through the guide groove, thereby cooling the lead in hot weather and avoiding the problem of fire caused by overheating of the lead; at the same time, through the cooperation of the pressure block L-shaped block, the long block, the arc block one, the limit plate, the long rod, the arc block two, the fixed rod, the fan plate and the moving rod, when the movement of the arc block one does not conflict with the arc block two, the spring two will drive the long rod and the arc block two to reset through its own elastic force, and so on, so that the long rod can realize reciprocating motion. The reciprocating motion of the long rod will drive the moving rod to move back and forth on the inner wall of the fan plate, so that the fan plate fans the airflow around the lead, thereby increasing the contact range between the coolant and the lead.

[0015] (3) The present invention sets an anti-fracture device so that the connection block, hinge rod 2, slider, hinge rod 3, track block, moving block, Z-shaped block, support plate, slide groove, and upper fixed groove plate cooperate with each other, so that the movement of the Z-shaped block will drive the support plate to move, and the support plate will contact the lead wire, thereby avoiding the lead wire between the insulation box and the lower fixed groove plate and the upper fixed groove plate from being suspended for a long time, so that the lead wire will shake in windy weather, causing lead wire fatigue or breakage; at the same time, through the cooperation of the partition plate and the support plate, the movement of the support plate will drive the partition plate to move, and the movement of the partition plate will separate different lead wires, thereby avoiding the problem of the lead wires being crossed or overlapped due to the action of wind. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is schematically shown as a whole Figure 1 ;

[0017] Figure 2 The present invention is schematically shown as a whole Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of the pressure roller of the present invention;

[0019] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 5 The structure diagram of the overheating prevention device of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 6 The structure diagram of the overheating prevention device of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 7 It is a structural schematic diagram of the anti-fracture device of the present invention.

[0023] In the figure: 1, transformer body; 101, mounting plate; 2, insulation box; 3, lower fixed slot plate; 4, screw; 5, upper fixed slot plate; 6, overheating prevention device; 61, fixed slot; 62, liquid storage cotton; 63, pressure block; 64, guide groove; 65, L-shaped block; 66, long block; 67, arc block 1; 68, limit plate; 69, long rod; 610, arc block 2; 611, fixed rod; 612, fan plate; 61 3. Moving rod; 7. Anti-fracture device; 71. Connecting block; 72. Articulated rod 2; 73. Sliding block; 74. Articulated rod 3; 75. Track block; 76. Moving block; 77. Z-shaped block; 78. Support plate; 79. Slide groove; 710. Partition plate; 8. L-shaped plate; 9. Elastic telescopic rod; 10. U-shaped plate; 11. Pressing roller; 12. Articulated rod 1; 13. Friction block; 14. Friction plate; 15. Fixed block. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-Figure 7An embodiment of the present invention is: a power transformer lead-out wire structure, comprising a transformer body 1, an insulating box 2 is fixedly connected to the top of the transformer body 1, a mounting plate 101 is fixedly connected to the top of the transformer body 1, a lower fixed slot plate 3 is fixedly connected to the top of the mounting plate 101, two screws 4 are rotatably connected to the top of the lower fixed slot plate 3, the circumferential surfaces of the two screws 4 are both threadedly connected to the upper fixed slot plate 5, the top of the upper fixed slot plate 5 and the bottom of the lower fixed slot plate 3 are both fixedly connected to an L-shaped plate 8, and the inner portion of the L-shaped plate 8 An elastic telescopic rod 9 is fixedly connected to the bottom of the wall, a U-shaped plate 10 is fixedly connected to the bottom of the elastic telescopic rod 9, a pressure roller 11 is fixedly connected to the inner wall of the U-shaped plate 10, an anti-overheating device 6 is provided at the bottom of the pressure roller 11, and an anti-fracture device 7 is provided on the back of the upper fixed groove plate 5. Through the setting of the above structure, the movement of the U-shaped plate 10 will drive the pressure roller 11 to move, and the movement of the pressure roller 11 fixes the leads that are smaller than the thickness and quantity, thereby ensuring that they are not easy to bend, loosen or contact other parts, thereby reducing the risk of fracture.

[0026] The top of the U-shaped plate 10 is hinged with a hinge rod 12, and a friction block 13 is hinged at one end of the hinge rod 12 away from the U-shaped plate 10. A fixed block 15 is fixedly connected to the side of the L-shaped plate 8, and a friction plate 14 is fixedly connected to the side of the L-shaped plate 8. The top of the friction block 13 is slidably connected to the bottom of the fixed block 15, and the friction plate 14 is located on the displacement trajectory of the friction block 13. The friction plate 14 is in contact with the upper fixed groove plate 5. Through the arrangement of the above structure, the contact between the friction block 13 and the friction plate 14 will generate resistance, and the resistance will stop the U-shaped plate 10 from moving through the hinge rod 12. The stopping of the U-shaped plate 10 will stop the pressure roller 11, and the stopping of the pressure roller 11 enhances the effect of fixing the leads that are smaller than the thickness and quantity.

[0027] The anti-overheating device 6 includes a fixed groove 61, the inner wall of the fixed groove 61 is opened on the bottom of the pressure roller 11, the top of the inner wall of the fixed groove 61 is fixedly connected with a liquid storage cotton 62, the inner wall of the fixed groove 61 is slidably connected with a pressure block 63, and a plurality of guide grooves 64 are opened at the bottom of the pressure block 63. A spring 1 is arranged between the pressure block 63 and the fixed groove 61, and the liquid storage cotton 62 is in contact with the pressure block 63. Through the arrangement of the above structure, the coolant inside the liquid storage cotton 62 flows to the surface of the lead through the guide groove 64, so as to cool the lead in hot weather and avoid the problem of fire caused by overheating of the lead.

[0028] The right side of the pressing block 63 is fixedly connected with an L-shaped block 65, the front side of the L-shaped block 65 is fixedly connected with a long block 66, and the side of the long block 66 is fixedly connected with a plurality of arc blocks 1 67. The left side of the U-shaped plate 10 is fixedly connected with a limiting plate 68, and the side of the limiting plate 68 is penetrated and slidably connected with a long rod 69, and the end of the long rod 69 away from the limiting plate 68 is fixedly connected with an arc block 2 610, and a spring is arranged between the long rod 69 and the limiting plate 68. The front side of the U-shaped plate 10 is fixedly connected with a plurality of fixing rods 611, and the plurality of fixing rods 611 are fixedly connected with the fixing rods 611. A plurality of fan plates 612 are rotatably connected to the circumferential surface, a plurality of movable rods 613 are fixedly connected to the outer wall of the long rod 69, the outer walls of the plurality of movable rods 613 are slidably connected to the side surfaces of the plurality of fan plates 612, and the arc block 2 610 is located on the displacement trajectory of the plurality of arc blocks 1 67. Through the arrangement of the above structure, the reciprocating motion of the long rod 69 will drive the movable rod 613 to reciprocate on the inner wall of the fan plate 612, so that the fan plate 612 fans the airflow around the lead wire, thereby increasing the contact range between the coolant and the lead wire.

[0029] When in use, the front end of the lead wire to be installed is inserted into the insulating box 2 so that the front end of the lead wire passes through the lead wire through-hole, and then the lower fixed slot plate 3 and the upper fixed slot plate 5 are covered, and the screw rod 4 is rotated by the handle. The rotation of the screw rod 4 will press the lower fixed slot plate 3 and the upper fixed slot plate 5 tightly, so as to fix the lead wire. However, the lower fixed slot plate 3 and the upper fixed slot plate 5 can only fix the lead wires of a certain thickness and quantity or greater than the thickness and quantity, so it is difficult to fix the lead wires of less than the thickness and quantity. Therefore, when the lower fixed slot plate 3 and the upper fixed slot plate 5 move, the L-shaped plate 8 will be driven to move, and the movement of the L-shaped plate 8 will drive the elastic telescopic rod 9 to move, and the movement of the elastic telescopic rod 9 will drive the U-shaped plate 10 to move, and the movement of the U-shaped plate 10 will drive the pressure roller 1 1 is moved, and the movement of the pressure roller 11 fixes the lead wires smaller than the thickness and quantity, thereby ensuring that they will not bend, loosen or contact other components, thereby reducing the risk of breakage; when the pressure roller 11 contacts the lead wire, the force interaction between the lead wire and the pressure roller 11 causes the pressure roller 11 to drive the U-shaped plate 10 to squeeze the elastic telescopic rod 9, and the movement of the U-shaped plate 10 drives the friction block 13 to move through the hinge rod 12, and the movement of the friction block 13 will contact the friction plate 14, and the contact between the friction block 13 and the friction plate 14 will generate resistance, which will stop the U-shaped plate 10 from moving through the hinge rod 12, and the stop of the U-shaped plate 10 will stop the pressure roller 11, and the stop of the pressure roller 11 enhances the effect of fixing the lead wires smaller than the thickness and quantity.

[0030] The movement of the pressing roller 11 will drive the pressing block 63 to move, and the movement of the pressing block 63 will contact the lead wire, so that through the action of the lead wire force, the pressing block 63 will move toward the inside of the pressing roller 11, and the movement of the pressing block 63 will squeeze the liquid storage cotton 62, so that the coolant inside the liquid storage cotton 62 flows to the surface of the lead wire through the guide groove 64, so as to cool the lead wire in hot weather and avoid the problem of fire caused by overheating of the lead wire; the movement of the pressing block 63 will drive the L-shaped block 65 to move, the movement of the L-shaped block 65 will drive the long block 66 to move, and the movement of the long block 66 will drive the arc block When arc block 1 67 moves, the movement of arc block 1 67 will conflict with arc block 2 610, so that arc block 2 610 drives long rod 69 to squeeze spring 2. When the movement of arc block 1 67 does not conflict with arc block 2 610, spring 2 will drive long rod 69 and arc block 2 610 to reset through its own elastic force, and so on, so that long rod 69 can realize reciprocating motion. The reciprocating motion of long rod 69 will drive moving rod 613 to reciprocate on the inner wall of fan plate 612, so that fan plate 612 can fan the airflow around the lead wire, thereby increasing the contact range between the coolant and the lead wire.

[0031] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, the anti-fracture device 7 includes a connecting block 71, the side of the connecting block 71 is fixedly connected to the back of the upper fixed groove plate 5, the side of the connecting block 71 away from the upper fixed groove plate 5 is hinged with a hinge rod 2 72, the end of the hinge rod 2 72 away from the connecting block 71 is hinged with a slider 73, the side of the slider 73 away from the hinge rod 2 72 is hinged with a hinge rod 3 74, the end of the hinge rod 3 74 away from the slider 73 is hinged with a moving block 76, the top of the mounting plate 101 is provided with a slide groove 79, the bottom of the slider 73 slides It is connected to the bottom of the inner wall of the slide groove 79, and the bottom of the inner wall of the slide groove 79 is fixedly connected to the track block 75. The side of the moving block 76 is slidably connected to the inner wall of the track block 75. The side of the moving block 76 away from the track block 75 is fixedly connected to the Z-shaped block 77, and the top of the Z-shaped block 77 is fixedly connected to the support plate 78. Through the arrangement of the above structure, the support plate 78 will contact the lead wire, thereby avoiding the lead wire between the insulating box 2 and the lower fixed slot plate 3 and the upper fixed slot plate 5 from being suspended for a long time, so that the lead wire will shake in windy weather, resulting in lead wire fatigue or breakage.

[0032] Two partitions 710 are fixedly connected to the top of the support plate 78. The two partitions 710 are symmetrical to each other along the central axis of the support plate 78. Through the setting of the above structure, the movement of the partitions 710 will separate different leads, thereby avoiding the problem of the leads crossing or overlapping due to wind force.

[0033] When in use, when the upper fixed slot plate 5 moves, the movement of the upper fixed slot plate 5 will drive the connection block 71 to move, and the movement of the connection block 71 will push the slider 73 to move through the hinge rod 2 72, and the movement of the slider 73 will push the moving block 76 to move upward along the track block 75 through the hinge rod 3 74, and the movement of the moving block 76 will drive the Z-shaped block 77 to move, and the movement of the Z-shaped block 77 will drive the support plate 78 to move, and the support plate 78 will contact the lead wire, thereby avoiding the lead wire between the insulation box 2 and the lower fixed slot plate 3 and the upper fixed slot plate 5 from being suspended for a long time, so that the lead wire shakes in windy weather, causing lead wire fatigue or breakage; the movement of the support plate 78 will drive the partition 710 to move, and the movement of the partition 710 will separate different lead wires, thereby avoiding the problem of the lead wires being crossed or overlapped due to wind.

[0034] 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 power transformer lead-out structure, comprising a transformer body (1), an insulating box (2) fixedly connected to the top of the transformer body (1), a mounting plate (101) fixedly connected to the top of the transformer body (1), a lower fixed slot plate (3) fixedly connected to the top of the mounting plate (101), two screw rods (4) rotatably connected to the top of the lower fixed slot plate (3), the circumferential surfaces of the two screw rods (4) being threadedly connected to the upper fixed slot plate (5), Features: The top of the upper fixed groove plate (5) and the bottom of the lower fixed groove plate (3) are both fixedly connected to an L-shaped plate (8); the bottom of the inner wall of the L-shaped plate (8) is fixedly connected to an elastic telescopic rod (9); the bottom of the elastic telescopic rod (9) is fixedly connected to a U-shaped plate (10); the inner wall of the U-shaped plate (10) is fixedly connected to a pressure roller (11); the bottom of the pressure roller (11) is provided with an overheating prevention device (6); and the back of the upper fixed groove plate (5) is provided with an anti-fracture device (7).

2. A power transformer lead wire structure according to claim 1, Features: The top of the U-shaped plate (10) is hinged with a hinge rod (12), one end of the hinge rod (12) away from the U-shaped plate (10) is hinged with a friction block (13), the side of the L-shaped plate (8) is fixedly connected with a fixed block (15), the side of the L-shaped plate (8) is fixedly connected with a friction plate (14), and the top of the friction block (13) is slidably connected to the bottom of the fixed block (15).

3. A power transformer lead wire structure according to claim 2, Features: The friction plate (14) is located on the displacement track of the friction block (13), and the friction plate (14) is in contact with the upper fixed groove plate (5).

4. A power transformer lead wire structure according to claim 3, Features: The overheating prevention device (6) comprises a fixed groove (61), the inner wall of which is opened on the bottom of the pressure roller (11), the top of the inner wall of the fixed groove (61) is fixedly connected with a liquid storage cotton (62), the inner wall of the fixed groove (61) is slidably connected with a pressure block (63), the bottom of the pressure block (63) is opened with a plurality of guide grooves (64), and a spring is arranged between the pressure block (63) and the fixed groove (61).

5. A power transformer lead wire structure according to claim 4, Features: The right side of the pressing block (63) is fixedly connected to an L-shaped block (65), the front side of the L-shaped block (65) is fixedly connected to a long block (66), the side of the long block (66) is fixedly connected to a plurality of arc blocks (67), the left side of the U-shaped plate (10) is fixedly connected to a limiting plate (68), the side of the limiting plate (68) is penetrated by a long rod (69) and is slidably connected, the end of the long rod (69) away from the limiting plate (68) is fixedly connected to an arc block (610), a spring is arranged between the long rod (69) and the limiting plate (68), the front side of the U-shaped plate (10) is fixedly connected to a plurality of fixed rods (611), the circumferential surfaces of the plurality of fixed rods (611) are rotatably connected to a plurality of fan plates (612), the outer wall of the long rod (69) is fixedly connected to a plurality of moving rods (613), the outer walls of the plurality of moving rods (613) are slidably connected to the side surfaces of the plurality of fan plates (612).

6. A power transformer lead wire structure according to claim 5, Features: The arc block 2 (610) is located on the displacement track of the plurality of arc blocks 1 (67), and the liquid storage cotton (62) is in contact with the pressing block (63).

7. A power transformer lead wire structure according to claim 6, Features: The anti-fracture device (7) comprises a connecting block (71), the side of which is fixedly connected to the back side of the upper fixed groove plate (5), the side of the connecting block (71) away from the upper fixed groove plate (5) is hingedly connected to a second hinged rod (72), the end of the second hinged rod (72) away from the connecting block (71) is hingedly connected to a slider (73), the side of the slider (73) away from the second hinged rod (72) is hingedly connected to a third hinged rod (74), the end of the third hinged rod (74) away from the slider (73) is hingedly connected to a A moving block (76), a slide groove (79) is provided on the top of the mounting plate (101), the bottom of the slider (73) is slidably connected to the bottom of the inner wall of the slide groove (79), the bottom of the inner wall of the slide groove (79) is fixedly connected to a track block (75), the side of the moving block (76) is slidably connected to the inner wall of the track block (75), the side of the moving block (76) away from the track block (75) is fixedly connected to a Z-shaped block (77), and the top of the Z-shaped block (77) is fixedly connected to a support plate (78).

8. A power transformer lead wire structure according to claim 7, Features: Two partitions (710) are fixedly connected to the top of the support plate (78), and the two partitions (710) are symmetrical to each other along the central axis of the support plate (78).

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