An outdoor high-voltage AC drop-out fuse

Abstract

The present invention relates to the technical field of drop-out fuses, and discloses an outdoor high-voltage AC drop-out fuse, which includes an insulator. An installation plate is fixedly connected to the surface of the insulator, and a trunnion is fixedly connected to the lower inner wall of the insulator. The bottom of the trunnion is threadedly connected to a chassis through a screw. A jack is provided on the surface of the chassis, and a bushing is inserted into the inner wall of the jack. A metal hoop is fixedly connected to the surface of the bushing, a lower contact head is arranged on the surface of the metal hoop, and a fuse tube is fixedly connected to the top of the metal hoop. After the insulator is fixed through the installation plate in the present invention, the bushing is inserted into the inside of the jack, and the chassis is used to support and limit the fuse tube. When the fuse tube needs to be closed, the operator operates the rod to contact the bottom of the operating component. The operator pushes the operating component to move upward through the rod. The operating component will push the moving frame to slide on the surface of the rectangular rod, and the rectangular rod is used to limit the moving frame to improve the stability of the moving frame during movement.

Description

Technical Field

[0001] The present invention relates to the technical field of drop fuses, and particularly to an outdoor high-voltage AC drop fuse. Background Art

[0002] The drop fuse is one of the most commonly used short-circuit protection switches for the branch lines of 10 kV distribution lines and distribution transformers. The drop fuse is installed on the branch line of the 10 kV distribution line, which can narrow the power outage range. Because it has an obvious disconnection point and has the function of a disconnecting switch, it creates a safe operation environment for the inspected section of the line and equipment. When installed on the distribution transformer, it can be used as the main protection of the distribution transformer;

[0003] When the drop fuse is closed, the operator needs to insert the rod into the inside of the operating ring and push the operating ring to perform the closing operation on the drop fuse. At present, the installation position of the drop fuse is relatively high. When the operator inserts the rod into the inside of the operating ring, the operator can only support the lower end of the rod. At this time, the top of the rod will shake, and the shaking of the top of the rod is likely to affect the operator's insertion of it into the inside of the operating ring, making the closing operation of the drop fuse difficult. Summary of the Invention

[0004] The purpose of the present invention is to provide an outdoor high-voltage AC drop fuse to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] The present invention is an outdoor high-voltage AC drop fuse, including an insulator. The surface of the insulator is fixedly connected with a mounting plate. The lower inner wall of the insulator is fixedly connected with a trunnion. The bottom of the trunnion is threadedly connected with a chassis through a screw. The surface of the chassis is provided with a jack. The inner wall of the jack is inserted with a bushing. The surface of the bushing is fixedly connected with a metal hoop. The surface of the metal hoop is provided with a lower contact head. The top of the metal hoop is fixedly connected with a fuse tube. The upper surface of the fuse tube is fixedly connected with an operating ring. The upper surface of the insulator is fixedly connected with a waterproof cover. The top of the inner wall of the waterproof cover is fixedly connected with a connecting buckle. The top of the inner wall of the waterproof cover is hinged with a duck tongue. The top of the inner wall of the waterproof cover is fixedly connected with a spring. The bottom of the spring is fixedly connected with the surface of the duck tongue. The lower surface of the chassis is threadedly connected with a lower terminal through a screw. The top of the waterproof cover is threadedly connected with an upper terminal through a screw. It further includes:

[0007] A closing component, the closing component includes a rectangular rod, and the bottom of the rectangular rod is fixedly connected with the top of the trunnion;

[0008] The gate-opening component, the gate-opening component includes an inclined plate, and the end of the inclined plate is hinged to the lower surface of a rectangular rod;

[0009] The operating component, the operating component includes a lifting plate, a groove plate is fixedly connected to the bottom of the lifting plate, and a round rod is fixedly connected to the inner wall of the groove plate.

[0010] Further, the top of the fuse tube contacts the bottom of the duckbill, the lower end of the connecting buckle extends to the outer end of the bottom of the waterproof cover, the end of the duckbill extends to the outer end of the waterproof cover, the bushing is located inside the chassis, and the end of the bushing extends to the outer end of the chassis through the jack.

[0011] Further, the closing component includes a moving frame, a bent plate is fixedly connected to the surface of the moving frame, and an arc rod is fixedly connected to the lower surface of the bent plate;

[0012] An arc rubber is fixedly connected to the surface of the arc rod.

[0013] Further, the top of the rectangular rod is fixedly connected to the bottom of the waterproof cover, the number of the bent plates is two, and the two bent plates are symmetrically arranged with the moving frame as the center.

[0014] Further, the arc rubber is located at the center of the arc rod, and the arc rod is symmetrically arranged with the arc rubber as the center, the surface of the arc rubber contacts the surface of the fuse tube, and the bottom of the bent plate extends below the moving frame.

[0015] Further, the gate-opening component includes a semi-circular frame, the surface of the semi-circular frame is hinged to the end of the inclined plate, a protective pad is fixedly connected to the inner wall of the semi-circular frame, a pressure plate is fixedly connected to the surface of the moving frame, and a support is fixedly connected to the end of the pressure plate away from the moving frame;

[0016] A rolling rod is rotatably connected to the inner wall of the support.

[0017] Further, the semi-circular frame is located at the end of the inclined plate away from the rectangular rod, the upper and lower ends of the protective pad extend to the outer end of the semi-circular frame, the inner wall of the protective pad contacts the surface of the fuse tube, the protective pad is located at the end of the fuse tube away from the arc rubber, the support is located above the moving frame, and the surface of the rolling rod corresponds to the upper surface of the inclined plate.

[0018] Further, the operating component includes a vertical rod, the top of the vertical rod is fixedly connected to the surface of the bent plate, the bottom of the vertical rod is fixedly connected to the top of the lifting plate, a support rod is fixedly connected to the inner wall of the trunnion, a positioning frame is fixedly connected to the end of the support rod, and a plastic rod is fixedly connected to the top of the lifting plate;

[0019] A mounting ring is fixedly connected to the top of the plastic rod. An arc-shaped clamping plate is hinged to the end of the mounting ring. An elastic piece is fixedly connected to the surface of the mounting ring. One end of the elastic piece away from the mounting ring is fixedly connected to the surface of the arc-shaped clamping plate.

[0020] Further, the end of the support rod penetrates through the trunnion and extends to the outer end of the trunnion. The bottom of the positioning frame penetrates through the lifting plate and extends below the lifting plate. The inner wall of the lifting plate is slidably connected to the surface of the positioning frame. The top of the support rod contacts the inner top of the arc-shaped clamping plate. A gap is provided between the end of the arc-shaped clamping plate away from the elastic piece and the end of the mounting ring.

[0021] The present invention has the following beneficial effects:

[0022] After the insulator is fixed by the mounting plate in the present invention, the bushing is inserted into the inside of the jack, and the fuse tube is supported and limited by the bottom frame. When the fuse tube needs to be switched on, the operator operates the rod to contact the bottom of the operating component. The operator pushes the operating component upward through the rod. The operating component will push the moving frame to slide on the surface of the rectangular rod. The rectangular rod is used to limit the moving frame to improve the stability of the moving frame during movement. When the moving frame moves upward, the arc-shaped rod is driven to move by the bent plate. When the arc-shaped rod moves, the fuse tube is pushed to rotate by the arc-shaped rubber. At this time, the fuse tube will rotate with the bottom bushing as the fulcrum. The fuse tube rotates to the bottom of the duckbill along with the movement of the arc-shaped rod. The duckbill is used to squeeze and fix the fuse tube to complete the switching-on operation, improving the stability of the fuse tube during the switching-on operation. After the fuse tube is switched on, the arc-shaped rod will be fixed on the surface of the fuse tube through the operating component, and the fuse tube is squeezed and fixed by the arc-shaped rubber on the surface of the arc-shaped rod to improve the stability of the fuse tube after switching on.

[0023] When the present invention needs to switch off the fuse tube, the operator uses the rod to push the operating component downward. The moving frame will move downward along with the operating component. When the moving frame moves downward, the roller is pushed downward through the connection between the pressure plate and the bracket. When the roller contacts the surface of the inclined plate, the arc-shaped rod will move to the lower part of the fuse tube and separate from the fuse tube. At this time, the roller will squeeze the inclined plate to move downward. The end of the inclined plate rotates on the surface of the rectangular rod. The semi-circular frame pushes the fuse tube to rotate towards the outer end of the duckbill along with the rotation of the inclined plate, so that the top of the fuse tube is separated from the bottom of the duckbill to complete the switching-off operation, improving the convenience of the fuse tube during switching off.

[0024] When the operator of the present invention uses the rod, when the top of the rod contacts the inner wall of the groove plate, the movable frame can be pushed upward to complete the closing operation, improving the convenience of the fuse tube during closing. To avoid the situation where the operator has difficulty aligning the rod with the operating ring due to the rod shaking, which affects the closing operation of the fuse tube. When the fuse tube needs to be opened, the operator pushes the rod into the inside of the groove plate. At this time, the groove plate can limit the top of the rod. The operator only needs to push the rod to slide inside the groove plate, and the hook at the top of the rod will contact the top of the round rod. At this time, when the rod is pushed downward, the rod will push the lifting plate downward through the round rod to complete the opening operation, improving the convenience of the operator's operation and avoiding the operator spending a long time inserting the rod into the inside of the operating ring. The lifting plate is connected to the bent plate through the vertical rod, so that when the lifting plate moves, it can push the movable frame to move through the vertical rod, and the closing and opening operations of the fuse tube are completed by the movement of the movable frame. The lifting plate slides on the surface of the positioning frame, improving the stability of the lifting plate during lifting. When the lifting plate moves upward, it pushes the installation ring upward through the plastic rod. When the installation ring moves upward, it pushes the arc-shaped clamping plate to contact the bottom of the support rod, and as the installation ring moves, it squeezes the arc-shaped clamping plate to move into the inside of the installation ring. After the support rod enters the inside of the installation ring, the arc-shaped clamping plate will be elastically reset by the elastic piece. At this time, the inner wall of the arc-shaped clamping plate will rest on the surface of the support rod to support and limit the lifting plate. When the fuse tube burns due to a short circuit, the spark generated during combustion will burn the plastic rod. After the plastic rod breaks, the lifting plate will move downward due to gravity. At this time, the lifting plate will push the roller rod downward through the movable frame, so that the roller rod squeezes the inclined plate to complete the opening operation of the fuse tube.

[0025] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Schematic diagram of the overall structure of the present invention;

[0028] Figure 2 Schematic diagram of the chassis structure of the present invention;

[0029] Figure 3 Schematic diagram of the connection buckle structure of the present invention;

[0030] Figure 4 Schematic diagram of the overall structure of the closing component of the present invention;

[0031] Figure 5 This is the schematic diagram of the overall structure of the gate-opening component of the present invention;

[0032] Figure 6 This is the schematic diagram of the overall structure of the operating component of the present invention;

[0033] Figure 7 This is another schematic diagram of the operating component of the present invention;

[0034] Figure 8 This is the present invention Figure 6 The enlarged schematic diagram of part A in.

[0035] In the attached drawings, the list of components represented by each label is as follows:

[0036] In the figure: 1. Insulator; 2. Mounting plate; 3. Waterproof cover; 4. Upper wiring terminal; 5. Trunnion; 6. Lower contact head; 7. Metal hoop; 8. Bush; 9. Jack; 10. Underframe; 11. Fuse tube; 12. Connecting buckle; 13. Spring; 14. Operating ring; 15. Duck tongue; 16. Lower wiring terminal; 17. Gate-closing component; 18. Gate-opening component; 19. Operating component; 20. Rectangular rod; 21. Moving frame; 22. Bent plate; 23. Arc rod; 24. Arc rubber; 30. Inclined plate; 31. Semi-circular frame; 32. Protective pad; 33. Roller rod; 34. Pressure plate; 35. Bracket; 40. Vertical rod; 41. Plastic rod; 42. Lifting plate; 43. Positioning frame; 44. Support rod; 45. Groove plate; 46. Round rod; 47. Mounting ring; 48. Arc clamping plate; 49. Spring piece. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figures 1-8As shown in the figure, the present invention is an outdoor high-voltage AC drop-out fuse, which includes an insulator 1. An installation plate 2 is fixedly connected to the surface of the insulator 1. An ear shaft 5 is fixedly connected to the lower inner wall of the insulator 1. The bottom of the ear shaft 5 is threadedly connected to a chassis 10 through a screw. A jack 9 is provided on the surface of the chassis 10. A bushing 8 is inserted into the inner wall of the jack 9. A metal hoop 7 is fixedly connected to the surface of the bushing 8. A lower contact head 6 is arranged on the surface of the metal hoop 7. A fuse tube 11 is fixedly connected to the top of the metal hoop 7. An operation ring 14 is fixedly connected to the upper surface of the fuse tube 11. A waterproof cover 3 is fixedly connected to the upper surface of the insulator 1. A connecting buckle 12 is fixedly connected to the top of the inner wall of the waterproof cover 3. A duckbill 15 is hinged to the top of the inner wall of the waterproof cover 3. A spring 13 is fixedly connected to the top of the inner wall of the waterproof cover 3. The bottom of the spring 13 is fixedly connected to the surface of the duckbill 15. The lower surface of the chassis 10 is threadedly connected to a lower terminal 16 through a screw. The top of the waterproof cover 3 is threadedly connected to an upper terminal 4 through a screw. It further includes:

[0039] A closing component 17, the closing component 17 includes a rectangular rod 20, and the bottom of the rectangular rod 20 is fixedly connected to the top of the ear shaft 5;

[0040] An opening component 18, the opening component 18 includes an inclined plate 30, and the end of the inclined plate 30 is hinged to the lower surface of the rectangular rod 20;

[0041] An operating component 19, the operating component 19 includes a lifting plate 42, and a groove plate 45 is fixedly connected to the bottom of the lifting plate 42. A round rod 46 is fixedly connected to the inner wall of the groove plate 45.

[0042] The top of the fuse tube 11 contacts the bottom of the duckbill 15. The lower end of the connecting buckle 12 extends to the outer end of the bottom of the waterproof cover 3. After the insulator 1 is fixed through the installation plate 2, the bushing 8 is inserted into the inside of the jack 9, and the chassis 10 is used to support and limit the fuse tube 11. When the fuse tube 11 needs to be closed, the operator operates the rod to contact the bottom of the operating component 19. The operator pushes the operating component 19 upward through the rod. The operating component 19 will push the moving frame 21 to slide on the surface of the rectangular rod 20, and the rectangular rod 20 is used to limit the moving frame 21. The end of the duckbill 15 extends to the outer end of the waterproof cover 3. The bushing 8 is located inside the chassis 10, and the end of the bushing 8 extends to the outer end of the chassis 10 through the jack 9.

[0043] The closing component 17 includes a moving frame 21, a bent plate 22 is fixedly connected to the surface of the moving frame 21, and an arc rod 23 is fixedly connected to the lower surface of the bent plate 22;

[0044] An arc rubber 24 is fixedly connected to the surface of the arc rod 23.

[0045] The top of the rectangular rod 20 is fixedly connected to the bottom of the waterproof cover 3. When the moving frame 21 moves upward, the arc rod 23 is driven to move by the bent plate 22. When the arc rod 23 moves, the fuse tube 11 is pushed to rotate through the arc rubber 24. At this time, the fuse tube 11 rotates with the bottom bushing 8 as the fulcrum. As the arc rod 23 moves, the fuse tube 11 rotates to the bottom of the tongue 15. The tongue 15 is used to squeeze and fix the fuse tube 11 to complete the closing operation. There are two bent plates 22, and the two bent plates 22 are symmetrically arranged with the moving frame 21 as the center.

[0046] The arc rubber 24 is located at the center of the arc rod 23, and the arc rod 23 is symmetrically arranged with the arc rubber 24 as the center. The surface of the arc rubber 24 contacts the surface of the fuse tube 11. The bottom of the bent plate 22 extends below the moving frame 21.

[0047] The opening component 18 includes a semi-circular frame 31. The surface of the semi-circular frame 31 is hinged to the end of the inclined plate 30. A protective pad 32 is fixedly connected to the inner wall of the semi-circular frame 31. A pressure plate 34 is fixedly connected to the surface of the moving frame 21. One end of the pressure plate 34 away from the moving frame 21 is fixedly connected to a support 35.

[0048] When the fuse tube 11 needs to be opened, the operator uses a rod to push the operating component 19 downward. The moving frame 21 will move downward with the operating component 19. When the moving frame 21 moves downward, the roller rod 33 is pushed downward through the connection between the pressure plate 34 and the support 35. When the roller rod 33 contacts the surface of the inclined plate 30, the roller rod 33 is rotatably connected to the inner wall of the support 35.

[0049] The semi-circular frame 31 is located at the end of the inclined plate 30 away from the rectangular rod 20. The upper and lower ends of the protective pad 32 extend to the outer end of the semi-circular frame 31. The arc rod 23 will move to the lower part of the fuse tube 11 and separate from the fuse tube 11. At this time, the roller rod 33 will squeeze the inclined plate 30 downward. The end of the inclined plate 30 rotates on the surface of the rectangular rod 20. The semi-circular frame 31 drives the fuse tube 11 to rotate outward from the tongue 15 as the inclined plate 30 rotates, so that the top of the fuse tube 11 is separated from the bottom of the tongue 15 to complete the opening operation. The inner wall of the protective pad 32 contacts the surface of the fuse tube 11. The protective pad 32 is located at the end of the fuse tube 11 away from the arc rubber 24. The support 35 is located above the moving frame 21. The surface of the roller rod 33 corresponds to the upper surface of the inclined plate 30.

[0050] The operating component 19 includes a vertical rod 40. The top of the vertical rod 40 is fixedly connected to the surface of the bent plate 22. The bottom of the vertical rod 40 is fixedly connected to the top of the lifting plate 42. A support rod 44 is fixedly connected to the inner wall of the trunnion 5. The end of the support rod 44 is fixedly connected to a positioning frame 43. A plastic rod 41 is fixedly connected to the top of the lifting plate 42.

[0051] The top of the plastic rod 41 is fixedly connected with an installation ring 47. When the operator uses the rod, when the top of the rod contacts the inner wall of the groove plate 45, the movable frame 21 can be pushed upward to complete the closing operation, improving the convenience of the fuse tube 11 during closing. This can prevent the operator from having difficulty aligning the rod with the operating ring 14 due to the rod shaking, which may affect the closing operation of the fuse tube 11. One end of the installation ring 47 is hinged with an arc-shaped clamping plate 48, and the surface of the installation ring 47 is fixedly connected with an elastic piece 49. One end of the elastic piece 49 far from the installation ring 47 is fixedly connected with the surface of the arc-shaped clamping plate 48.

[0052] The end of the support rod 44 penetrates through the trunnion 5 and extends to the outer end of the trunnion 5. The bottom of the positioning frame 43 penetrates through the lifting plate 42 and extends below the lifting plate 42. When the operator needs to open the fuse tube 11, the operator pushes the rod into the inside of the groove plate 45. At this time, the groove plate 45 can limit the top of the rod. The operator only needs to push the rod to slide inside the groove plate 45, and the hook at the top of the rod will contact the top of the round rod 46. At this time, when the rod is pushed downward, the rod will push the lifting plate 42 downward through the round rod 46 to complete the opening operation. The inner wall of the lifting plate 42 is slidably connected with the surface of the positioning frame 43. The top of the support rod 44 contacts the inner wall top of the arc-shaped clamping plate 48, and there is a gap between one end of the arc-shaped clamping plate 48 far from the elastic piece 49 and the end of the installation ring 47.

[0053] During use, when the operator uses the rod, the top of the rod contacts the inner wall of the groove plate 45 to push the moving frame 21 upward to complete the closing operation, improving the convenience of the fuse tube 11 during closing. This avoids the situation where it is difficult for the operator to align the rod with the operating ring 14 due to the shaking of the rod, which may affect the closing operation of the fuse tube 11. When it is necessary to open the fuse tube 11, the operator inserts the rod into the inside of the groove plate 45. At this time, the groove plate 45 can limit the top of the rod. The operator only needs to push the rod to slide inside the groove plate 45, and the hook at the top of the rod will contact the top of the round rod 46. At this time, when the rod is pushed downward, the rod will push the lifting plate 42 downward through the round rod 46 to complete the opening operation, improving the convenience of the operator's operation and avoiding the situation where the operator needs to spend a long time inserting the rod into the inside of the operating ring 14. The lifting plate 42 is connected to the bent plate 22 through the vertical rod 40, so that when the lifting plate 42 moves, it can push the moving frame 21 to move through the vertical rod 40, and the closing and opening operations of the fuse tube 11 are completed by the movement of the moving frame 21. The lifting plate 42 slides on the surface of the positioning frame 43, improving the stability of the lifting plate 42 during lifting. When the lifting plate 42 moves upward, it pushes the installation ring 47 upward through the plastic rod 41. When the installation ring 47 moves upward, it pushes the arc clamping plate 48 to contact the bottom of the support rod 44, and as the installation ring 47 moves, it squeezes the arc clamping plate 48 to move into the inside of the installation ring 47. When the support rod 44 enters the inside of the installation ring 47, the arc clamping plate 48 will be elastically reset by the elastic piece 49. At this time, the inner wall of the arc clamping plate 48 will rest on the surface of the support rod 44 to support and limit the lifting plate 42. When the fuse tube 11 burns due to a short circuit, the sparks generated during combustion will burn off the plastic rod 41. After the plastic rod 41 breaks, the lifting plate 42 will move downward due to gravity. At this time, the lifting plate 42 will push the roller rod 33 downward through the moving frame 21, so that the roller rod 33 squeezes the inclined plate 30 to complete the opening operation of the fuse tube 11. The operator pushes the operating component 19 upward through the rod, and the operating component 19 will push the moving frame 21 to slide on the surface of the rectangular rod 20, using the rectangular rod 20 to limit the moving frame 21 and improving the stability of the moving frame 21 during movement. When the moving frame 21 moves upward, it drives the arc rod 23 to move through the bent plate 22. When the arc rod 23 moves, it pushes the fuse tube 11 to rotate through the arc rubber 24. At this time, the fuse tube 11 will rotate with the bottom bushing 8 as the fulcrum. The fuse tube 11 rotates to the bottom of the tongue 15 as the arc rod 23 moves, and the tongue 15 is used to squeeze and fix the fuse tube 11 to complete the closing operation. When it is necessary to open the fuse tube 11, the operator uses the rod to push the operating component 19 downward, and the moving frame 21 will move downward with the operating component 19. When the moving frame 21 moves downward, it pushes the roller rod 33 downward through the connection between the pressure plate 34 and the support 35. When the roller rod 33 contacts the surface of the inclined plate 30,The arc-shaped rod 23 will move below the fuse tube 11 and separate from the fuse tube 11. At this time, the rolling rod 33 will squeeze the inclined plate 30 to move downward. The end of the inclined plate 30 rotates on the surface of the rectangular rod 20. As the inclined plate 30 rotates, the semi-circular frame 31 pushes the fuse tube 11 to rotate towards the outer end of the tongue 15, causing the top of the fuse tube 11 to separate from the bottom of the tongue 15 to complete the opening operation.

[0054] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An outdoor high-voltage AC drop-out fuse, comprising an insulator (1), a mounting plate (2) fixedly connected to the surface of the insulator (1), a trunnion (5) fixedly connected to the lower inner wall of the insulator (1), and a bottom frame (10) threadedly connected to the bottom of the trunnion (5) through a screw, characterized in that, Further included are: A closing component (17), the closing component (17) includes a rectangular rod (20), and the bottom of the rectangular rod (20) is fixedly connected to the top of the trunnion (5); An opening component (18), the opening component (18) includes an inclined plate (30), and the end of the inclined plate (30) is hinged to the lower surface of the rectangular rod (20); An operating component (19), the operating component (19) includes a lifting plate (42), a groove plate (45) is fixedly connected to the bottom of the lifting plate (42), and a round rod (46) is fixedly connected to the inner wall of the groove plate (45); The closing component (17) includes a moving frame (21), a bent plate (22) is fixedly connected to the surface of the moving frame (21), and an arc rod (23) is fixedly connected to the lower surface of the bent plate (22); An arc rubber (24) is fixedly connected to the surface of the arc rod (23); The operating component (19) includes a vertical rod (40), the top of the vertical rod (40) is fixedly connected to the surface of the bent plate (22), the bottom of the vertical rod (40) is fixedly connected to the top of the lifting plate (42), a support rod (44) is fixedly connected to the inner wall of the trunnion (5), a positioning frame (43) is fixedly connected to the end of the support rod (44), and a plastic rod (41) is fixedly connected to the top of the lifting plate (42); An installation ring (47) is fixedly connected to the top of the plastic rod (41), an arc clamping plate (48) is hinged to the end of the installation ring (47), a spring piece (49) is fixedly connected to the surface of the installation ring (47), and one end of the spring piece (49) far from the installation ring (47) is fixedly connected to the surface of the arc clamping plate (48).

2. The outdoor high-voltage AC drop-out fuse according to claim 1, characterized in that: A jack (9) is formed on the surface of the chassis (10), a bushing (8) is inserted into the inner wall of the jack (9), a metal hoop (7) is fixedly connected to the surface of the bushing (8), a lower contact head (6) is arranged on the surface of the metal hoop (7), a fuse tube (11) is fixedly connected to the top of the metal hoop (7), an operating ring (14) is fixedly connected to the upper surface of the fuse tube (11), a waterproof cover (3) is fixedly connected to the upper surface of the insulator (1), a connection buckle (12) is fixedly connected to the top of the inner wall of the waterproof cover (3), a duckbill (15) is hinged to the top of the inner wall of the waterproof cover (3), a spring (13) is fixedly connected to the top of the inner wall of the waterproof cover (3), the bottom of the spring (13) is fixedly connected to the surface of the duckbill (15), a lower wiring terminal (16) is threadedly connected to the lower surface of the chassis (10) through a screw, and an upper wiring terminal (4) is threadedly connected to the top of the waterproof cover (3) through a screw.

3. The outdoor high-voltage AC drop-out fuse according to claim 2, characterized in that: The top of the fuse tube (11) contacts the bottom of the duckbill (15), the lower end of the connection buckle (12) extends to the outer end of the bottom of the waterproof cover (3), the end of the duckbill (15) extends to the outer end of the waterproof cover (3), the bushing (8) is located inside the chassis (10), and the end of the bushing (8) extends to the outer end of the chassis (10) through the jack (9).

4. An outdoor high-voltage AC drop-out fuse according to claim 3, characterized in that: The top of the rectangular rod (20) is fixedly connected to the bottom of the waterproof cover (3). The number of the bent plates (22) is two, and the two bent plates (22) are symmetrically arranged with the moving frame (21) as the center.

5. An outdoor high-voltage AC drop-out fuse according to claim 4, characterized in that: The arc rubber (24) is located at the center of the arc rod (23), and the arc rod (23) is symmetrically arranged with the arc rubber (24) as the center. The surface of the arc rubber (24) is in contact with the surface of the fuse tube (11). The bottom of the bent plate (22) extends below the moving frame (21).

6. The outdoor high-voltage AC drop-out fuse according to claim 5, characterized in that: The gate-opening component (18) includes a semi-circular frame (31). The surface of the semi-circular frame (31) is hinged to the end of the inclined plate (30). A protective pad (32) is fixedly connected to the inner wall of the semi-circular frame (31). A pressure plate (34) is fixedly connected to the surface of the moving frame (21). One end of the pressure plate (34) far away from the moving frame (21) is fixedly connected to a bracket (35). A rolling rod (33) is rotatably connected to the inner wall of the bracket (35).

7. An outdoor high-voltage AC drop-out fuse according to claim 6, characterized in that: The semi-circular frame (31) is located at one end of the inclined plate (30) far away from the rectangular rod (20). The upper and lower ends of the protective pad (32) extend to the outer ends of the semi-circular frame (31). The inner wall of the protective pad (32) is in contact with the surface of the fuse tube (11). The protective pad (32) is located at one end of the fuse tube (11) far away from the arc rubber (24). The bracket (35) is located above the moving frame (21). The surface of the rolling rod (33) corresponds to the upper surface of the inclined plate (30).

8. An outdoor high-voltage AC drop-out fuse according to claim 7, characterized in that: The end of the support rod (44) penetrates through the trunnion (5) and extends to the outer end of the trunnion (5). The bottom of the positioning frame (43) penetrates through the lifting plate (42) and extends below the lifting plate (42). The inner wall of the lifting plate (42) is slidably connected to the surface of the positioning frame (43). The top of the support rod (44) is in contact with the inner wall top of the arc-shaped clamping plate (48). There is a gap between one end of the arc-shaped clamping plate (48) far away from the elastic piece (49) and the end of the mounting ring (47).

Images