A combination arrester and switch for a jet type fuse

Abstract

The application discloses a kind of injection fuse disconnecting switch combination electric appliance, it is related to electric power switch technical field, including installation support, switch mechanism is arranged on the installation support.The injection fuse disconnecting switch combination electric appliance, when the load fuse tube inside the injection fuse main body is replaced, the handle is pulled using operating lever to make the contact breaker from the inside of second U-shaped terminal block disengaging, using contact breaker drives rotating shaft rotation, through rotating shaft and interlock mechanism drives insulating baffle to remove from the lower part of injection fuse main body, to unblock to the lower part of injection fuse main body, so that load fuse tube is exposed to carry out disassembly, in addition, after load fuse tube is installed in injection fuse main body, operating lever is used to push contact breaker and is inserted into the inside of second U-shaped terminal block, at this time, using the transmission of rotating shaft and interlock mechanism drives insulating baffle to move to the lower part of injection fuse main body, and good safety.

Description

Technical Field

[0001] This invention relates to the field of power switch technology, specifically to a jet-type fuse disconnector switch combination appliance. Background Technology

[0002] Disconnecting switches are an important type of switching equipment in power systems. They are typically combined with circuit breakers, grounding switches, etc., to form a complete switchgear assembly. (The text then mentions spray-type fuse disconnecting switches, but this seems unrelated to the main topic and is likely a separate sentence fragment.) It is a kind of Outdoor high voltage disconnect switch and Enclosed type spray fuse Integrated power protection devices are mainly used in power distribution systems to implement circuit protection. Isolation, switching and fault protection Function.

[0003] A search revealed patent CN217822542U, which discloses a closed-type ejector-type fuse disconnector switch combination appliance. This appliance includes an outdoor high-voltage disconnector switch and a closed-type ejector-type fuse, as well as a mounting bracket. The mounting bracket has a disconnector switch mounting hole on its upper front, a bracket mounting hole on its front, and a fuse mounting hole on its lower front. This closed-type ejector-type fuse disconnector switch combination appliance, through the combined use of the mounting bracket, fuse mounting base, and arc-shaped fixing plate, secures both the outdoor high-voltage disconnector switch and the closed-type ejector-type fuse to the mounting bracket. The outdoor high-voltage disconnector switch is installed at the front end of the incoming line of the closed-type ejector-type fuse, forming a complete product. The above-mentioned patents have the following shortcomings: the fuse and the disconnecting switch have no linkage or interlock, which makes it easy for the disconnecting switch to be opened or closed under load, causing an arc short circuit accident. In addition, the disconnecting switch can only be operated manually, without electric drive or communication interface, and cannot be remotely opened or closed, which is not suitable for the automation requirements of smart distribution networks. Therefore, we propose a jet-type fuse disconnecting switch combination appliance. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a jet-type fuse disconnector switch combination appliance, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a jet-type fuse disconnector switch combination appliance, comprising a mounting bracket, a switching mechanism mounted on the mounting bracket, a fuse mechanism mounted on the mounting bracket, an electric mechanism for electrically opening and closing the switching mechanism mounted on the mounting bracket, a control mechanism for controlling the electric mechanism mounted on the mounting bracket, an interlocking mechanism for linkage between the switching mechanism and the fuse mechanism mounted on the mounting bracket, and a dust-blocking mechanism for protecting the electric mechanism, the interlocking mechanism, and the control mechanism mounted on the mounting bracket.

[0006] Optionally, the switching mechanism includes a first mounting bracket and a second mounting bracket bolted onto a mounting bracket. A first insulating post is fixedly mounted on the first mounting bracket, and a second insulating post is fixedly mounted on the second mounting bracket. A first U-shaped terminal block is fixedly mounted at the end of the second insulating post, and a second U-shaped terminal block is fixedly mounted at the end of the first insulating post. A rotating shaft is rotatably connected to the first U-shaped terminal block. A switch is fixedly sleeved on the outer side of the rotating shaft, and the end of the switch is sleeved onto the inner side of the second U-shaped terminal block. A handle is fixedly mounted on the outer side of the switch.

[0007] Optionally, the fuse mechanism includes a third mounting bracket bolted to a mounting bracket, on which a jet-type fuse body is fixedly sleeved. A first wiring cable is provided at the top of the jet-type fuse body, and the end of the first wiring cable is connected to a first U-shaped terminal block by bolts. A second wiring cable is provided on the side of the jet-type fuse body, and a fuse-carrying tube is sleeved on the inner side of the jet-type fuse body.

[0008] Optionally, the interlocking mechanism includes a vertical frame and two support frames fixedly connected to the mounting bracket. A fourth drive shaft is rotatably connected between the two support frames via bearings. An insulating baffle is fixedly connected to the bottom end of the fourth drive shaft. The top surface of the insulating baffle is in contact with the bottom end of the ejector fuse body and the fuse tube. A first drive shaft, a second drive shaft, and a third drive shaft are rotatably connected to the vertical frame via bearings. A first straight tooth is fixedly sleeved on the side of the first drive shaft. The first drive shaft has a first bevel gear fixedly sleeved on its side, and the second drive shaft has a second bevel gear fixedly sleeved on its side, which meshes with the first drive shaft. The third drive shaft has a third bevel gear fixedly sleeved on its side, which meshes with the second drive shaft. The third drive shaft has a first bevel gear fixedly sleeved on its side, and the fourth drive shaft has a second bevel gear fixedly sleeved on its side, which meshes with the first bevel gear. An insulating coupling is fixedly connected to the end of the first drive shaft, and the end of the insulating coupling is connected to one end of the rotating shaft.

[0009] Optionally, the electric mechanism includes two columns fixedly connected to the mounting bracket. A sliding box is fixedly connected to the ends of the two columns. A rack is slidably connected to the inner cavity of the sliding box. A fourth spur gear meshes with the side of the rack. The fourth spur gear is fixedly sleeved on a first transmission shaft. Slide rods are fixedly connected to both the top and bottom ends of the rack. The two slide rods are movably sleeved with the sliding box. A first electric telescopic rod is fixedly installed at the bottom of the sliding box. The output end of the first electric telescopic rod extends into the inner cavity of the sliding box and is fixedly connected to a first rubber push post. A second electric telescopic rod is fixedly installed on the top surface of the sliding box. The output end of the second electric telescopic rod extends into the inner cavity of the sliding box and is fixedly connected to a second rubber push post.

[0010] Optionally, the control mechanism includes a mounting base bolted to a mounting bracket, a power supply box fixedly connected to the mounting base, a door hinged to the side of the power supply box, a power source inside the power supply box, and a wireless signal receiver controller fixedly installed inside the power supply box. The wireless signal receiver controller is electrically connected to the first electric telescopic rod and the second electric telescopic rod via wires, and the power source is electrically connected to the wireless signal receiver controller, the first electric telescopic rod, and the second electric telescopic rod via wires.

[0011] Optionally, the dust-blocking mechanism includes two mounting plates fixedly connected to the mounting bracket. Each of the two mounting plates is provided with a screw hole. A transparent protective cover is fitted on the outer side of the two mounting plates. Two fastening bolts are fitted on the transparent protective cover. The ends of the two fastening bolts are respectively threaded into the inner cavity of the screw hole.

[0012] Optionally, mounting holes are provided at both ends of the mounting bracket.

[0013] This invention provides a jet-type fuse disconnector switch combination electrical appliance, which has the following beneficial effects: 1. This jet-type fuse disconnector switch combination appliance combines the switching mechanism, fuse mechanism, and interlocking mechanism on the mounting bracket. When replacing the fuse tube inside the jet-type fuse body, the operating lever is used to pull the handle to disengage the switch from the inside of the second U-shaped terminal block. The switch drives the rotating shaft to rotate, and the rotating shaft and interlocking mechanism drive the insulating baffle to move away from the bottom of the jet-type fuse body to remove the blockage, thus exposing the fuse tube for disassembly. After the fuse tube is installed in the jet-type fuse body, the operating lever is used to push the switch into the inside of the second U-shaped terminal block. At this time, the rotating shaft and interlocking mechanism drive the insulating baffle to move to the bottom of the jet-type fuse body, ensuring that when closing, the fuse is connected first and then the disconnector switch is closed, and when opening, the disconnector switch is disconnected first and then the fuse is released, ensuring good safety.

[0014] 2. This jet-type fuse disconnector switch combination appliance, when remotely controlled, sends a control signal to the wireless signal receiver controller. During opening, the first electric telescopic rod moves the first rubber push column up and down once, pushing the rack upwards. The meshing transmission between the rack and the fourth spur gear drives the rotating shaft and the switch to rotate, causing the second U-shaped terminal block and the switch to open. Additionally, an interlocking mechanism moves the insulating baffle away from below the jet-type fuse body. During closing, the second electric telescopic rod moves the second rubber push column up and down once, pushing the rack downwards. The meshing transmission between the rack and the fourth spur gear drives the rotating shaft and the switch to reverse, causing the second U-shaped terminal block and the switch to close. Additionally, an interlocking mechanism moves the insulating baffle away from below the jet-type fuse body. This achieves remote control of the combination appliance with good working quality.

[0015] 3. This jet-type fuse disconnect switch combination appliance, through the cooperation of mounting plates, screw holes, transparent protective covers and fastening bolts, after the mounting bracket is installed on the bracket on the utility pole, the transparent protective cover is fitted onto the outside of the two mounting plates on the mounting bracket, and the fastening bolts are rotated so that the end threads are installed into the inside of the screw holes, so that the transparent protective cover is installed on the outside of the electric mechanism, interlocking mechanism and control mechanism, so as to prevent dust from falling on the outside of the electric mechanism, control mechanism and interlocking mechanism, reducing the probability of dust falling on the electric mechanism and interlocking mechanism. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an overall exploded view of the present invention; Figure 3 This is a schematic diagram of the installation of the main body of the jet-type fuse of the present invention; Figure 4 This is a schematic diagram of the structure of the mounting bracket of the present invention; Figure 5 This is a schematic diagram of the structure of the switch of the present invention; Figure 6 This is a schematic diagram of the main body of the jet-type fuse of the present invention; Figure 7 This is a cross-sectional schematic diagram of the sliding box of the present invention; Figure 8 This is a cross-sectional schematic diagram of the power supply box of the present invention; Figure 9 This is a schematic diagram of the structure of the transparent protective cover of the present invention.

[0017] In the diagram: 1. Mounting bracket; 2. Switching mechanism; 3. Fuse mechanism; 4. Electric mechanism; 5. Control mechanism; 6. Interlocking mechanism; 7. Ash-blocking mechanism; 8. First mounting bracket; 9. Second mounting bracket; 10. First insulating column; 11. Second insulating column; 12. First U-shaped terminal block; 13. Second U-shaped terminal block; 14. Rotating shaft; 15. Knife switch; 16. Handle; 17. Third mounting bracket; 18. Spray-type fuse body; 19. First connecting cable; 20. Second connecting cable; 21. Fuse carrier tube; 22. Stand; 23. Support frame; 24. Fourth drive shaft; 25. Insulating baffle; 26. Insulating coupling; 27. Fourth... 28. Spur gear; 29. ​​First drive shaft; 30. First spur gear; 31. Second drive shaft; 32. Third drive shaft; 33. Third spur gear; 34. First bevel gear; 35. Second bevel gear; 36. Column; 37. Sliding box; 38. Rack; 39. Slide rod; 40. First electric telescopic rod; 41. First rubber push column; 42. Second electric telescopic rod; 43. Second rubber push column; 44. Mounting base; 45. Power supply box; 46. Box door; 47. Power supply; 48. Wireless signal receiver controller; 49. Mounting plate; 50. Screw hole; 51. Transparent protective cover; 52. Fastening bolt; 53. Mounting hole. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Please see Figures 1 to 9 The present invention provides a technical solution: a jet-type fuse disconnect switch combination electrical appliance, including a mounting bracket 1, a switching mechanism 2 and a fuse mechanism 3 mounted on the mounting bracket 1, an electric mechanism 4 for electrically opening and closing the switching mechanism 2 mounted on the mounting bracket 1, a control mechanism 5 for controlling the electric mechanism 4 mounted on the mounting bracket 1, an interlocking mechanism 6 for linking the switching mechanism 2 and the fuse mechanism 3 mounted on the mounting bracket 1, and a dust-blocking mechanism 7 for protecting the electric mechanism 4, the interlocking mechanism 6, and the control mechanism 5 mounted on the mounting bracket 1.

[0020] The switching mechanism 2 includes a first mounting bracket 8 and a second mounting bracket 9 bolted onto the mounting bracket 1. A first insulating post 10 is fixedly mounted on the first mounting bracket 8, and a second insulating post 11 is fixedly mounted on the second mounting bracket 9. A first U-shaped terminal block 12 is fixedly mounted at the end of the second insulating post 11, and a second U-shaped terminal block 13 is fixedly mounted at the end of the first insulating post 10. A rotating shaft 14 is rotatably connected to the first U-shaped terminal block 12, and a switch 15 is fixedly sleeved on the outer side of the rotating shaft 14. The end of the switch 15... The first U-shaped terminal block 12 is fitted into the inner side of the second U-shaped terminal block 13. The inner side of the second U-shaped terminal block 13 is provided with a protrusion that limits the position of the switch 15. At the same time, the two sides of the second U-shaped terminal block 13 can undergo elastic deformation to ensure that the switch 15 can be smoothly inserted into the inner cavity of the second U-shaped terminal block 13 and to ensure that the switch 15 can be disengaged from the inner side of the second U-shaped terminal block 13. Both the second U-shaped terminal block 13 and the first U-shaped terminal block 12 are provided with connection holes for connecting wires. A handle 16 is fixedly installed on the outer side of the switch 15.

[0021] The fuse mechanism 3 includes a third mounting bracket 17 bolted to the mounting bracket 1. A jet-type fuse body 18 is fixedly sleeved on the third mounting bracket 17. A first wiring cable 19 is provided at the top of the jet-type fuse body 18. The end of the first wiring cable 19 is connected to the first U-shaped terminal block 12 by bolts. A second wiring cable 20 is provided on the side of the jet-type fuse body 18. A fuse-carrying tube 21 is sleeved on the inner side of the jet-type fuse body 18.

[0022] The interlocking mechanism 6 includes a stand 22 fixedly connected to the mounting bracket 1 and two support frames 23. A fourth drive shaft 24 is rotatably connected between the two support frames 23 via bearings. An insulating baffle 25 is fixedly connected to the bottom end of the fourth drive shaft 24. The top surface of the insulating baffle 25 is in contact with the bottom end of the ejector fuse body 18 and the fuse carrier tube 21. The insulating baffle 25 supports the bottom end of the fuse carrier tube 21 and simultaneously limits and locks the fuse carrier tube 21 inside the ejector fuse body 18. A first drive shaft 28 is rotatably connected to the stand 22 via bearings. A second drive shaft 30 is rotatably connected to the stand 22 via bearings. A third drive shaft 32 is rotatably connected to the stand 22 via bearings. A first drive shaft 28 is fixedly sleeved on the side of the first drive shaft 28. The first spur gear 29 is fixedly sleeved on the side of the second drive shaft 30, and the second spur gear 31 and the first spur gear 29 mesh with each other. The third spur gear 33 is fixedly sleeved on the side of the third drive shaft 32, and the third spur gear 33 and the second spur gear 31 mesh with each other. The first bevel gear 34 is fixedly sleeved on the side of the third drive shaft 32, and the second bevel gear 35 is fixedly sleeved on the side of the fourth drive shaft 24, and the second bevel gear 35 and the first bevel gear 34 mesh with each other. An insulating coupling 26 is fixedly connected to the end of the first drive shaft 28, and the end of the insulating coupling 26 is connected to one end of the rotating shaft 14. The insulation between the insulating coupling 26 and the first drive shaft 28 prevents current from flowing to the electric mechanism 4 and the interlocking mechanism 6.

[0023] The electric mechanism 4 includes two columns 36 fixedly connected to the mounting bracket 1. A sliding box 37 is fixedly connected to the ends of the two columns 36. A rack 38 is slidably connected to the inner cavity of the sliding box 37. The side of the rack 38 fits against the inner wall of the sliding box 37 to ensure the stability of the rack 38 sliding within the inner cavity of the sliding box 37. A fourth spur gear 27 meshes with the side of the rack 38. The fourth spur gear 27 is fixedly sleeved on the first transmission shaft 28. Slide rods 39 are fixedly connected to both the top and bottom ends of the rack 38. The slide rod 39 and the slide box 37 are respectively movably connected to the slide box 37. The rack 38 is limited by the cooperation of the slide rod 39 and the slide box 37, so that the rack 38 can only move vertically up and down. The bottom of the slide box 37 is fixedly installed with a first electric telescopic rod 40. The output end of the first electric telescopic rod 40 extends into the inner cavity of the slide box 37 and is fixedly connected with a first rubber push column 41. The top surface of the slide box 37 is fixedly installed with a second electric telescopic rod 42. The output end of the second electric telescopic rod 42 extends into the inner cavity of the slide box 37 and is fixedly connected with a second rubber push column 43.

[0024] The control mechanism 5 includes a mounting base 44 bolted onto the mounting bracket 1. A power supply box 45 is fixedly connected to the mounting base 44. A door 46 is hinged to the side of the power supply box 45. A power supply 47 is installed inside the power supply box 45. A wireless signal receiver controller 48 is fixedly installed inside the power supply box 45. The wireless signal receiver controller 48 is electrically connected to the first electric telescopic rod 40 and the second electric telescopic rod 42 via wires. The wireless signal receiver controller 48 receives remote signals and controls the first electric telescopic rod 40 and the second electric telescopic rod 42 using the signals received by the wireless signal receiver controller 48. The power supply 47 is electrically connected to the wireless signal receiver controller 48, the first electric telescopic rod 40, and the second electric telescopic rod 42 via wires. The power supply 47 provides individual power to the wireless signal receiver controller 48, the first electric telescopic rod 40, and the second electric telescopic rod 42.

[0025] The dust-blocking mechanism 7 includes two mounting plates 49 fixedly connected to the mounting bracket 1. Each mounting plate 49 has a screw hole 50. A transparent protective cover 51 is fitted on the outer side of the two mounting plates 49. Two fastening bolts 52 are fitted on the transparent protective cover 51. The ends of the two fastening bolts 52 are threaded into the inner cavity of the screw hole 50. The transparent protective cover 51 is installed on the mounting bracket 1 by the cooperation of the fastening bolts 52 and the screw hole 50. The transparent protective cover 51 protects the electric mechanism 4, the interlocking mechanism 6 and the control mechanism 5.

[0026] The mounting bracket 1 has mounting holes 53 at both ends, and the mounting bracket 1 is installed and fixed by the cooperation of the mounting holes 53 and screws.

[0027] In summary, when using this jet-type fuse disconnector switch combination appliance, firstly, the mounting bracket 1 is installed on the pole support using bolts, nuts, and mounting holes 53. Simultaneously, the wires are connected to the second U-shaped terminal block 13 and the second wiring cable 20, respectively. The transparent protective cover 51 is then fitted over the two mounting plates 49 on the mounting bracket 1. The fastening bolt 52 is rotated so that its threaded end is installed inside the screw hole 50, allowing the transparent protective cover 51 to be installed on the outside of the electric mechanism 4, interlocking mechanism 6, and control mechanism 5. This serves to prevent dust from falling onto the electric mechanism 4, control mechanism 5, and interlocking mechanism 6, reducing the probability of dust settling on them. Then, when it is necessary to adjust the jet-type fuse... When replacing the fuse tube 21 inside the main body 18, the handle 16 on the switch 15 is pulled using the insulating operating rod, causing the end of the switch 15 to disengage from the inside of the second U-shaped terminal block 13. Simultaneously, the switch 15 drives the rotating shaft 14, insulating coupling 26, fourth spur gear 27, and first transmission shaft 28 to rotate outwards. At this time, the engagement of the fourth spur gear 27 and rack 38 causes the rack 38 to move upwards. Additionally, the first transmission shaft 28 drives the first spur gear 29 to rotate. The meshing transmission between the first spur gear 29, second spur gear 31, and third spur gear 33 drives the third transmission shaft 32 and first bevel gear 34 to rotate. The meshing transmission between the first bevel gear 34 and second bevel gear 35 drives the fourth transmission shaft 24. Rotating the insulating baffle 25 removes it from under the body 18 of the ejector fuse. Then, the insulating operating rod can be used to disassemble the fuse carrier tube 21 inside the body 18 and install a new fuse carrier tube 21 inside the body 18. At this time, the insulating operating rod pushes the switch 15 upwards, causing the top of the switch 15 to engage inside the second U-shaped terminal block 13. Simultaneously, this reverses the rotation of the rotating shaft 14, insulating coupling 26, fourth spur gear 27, first transmission shaft 28, and first spur gear 29. The engagement between the fourth spur gear 27 and rack 38 causes rack 38 to move downwards. Furthermore, the meshing transmission between the first spur gear 29, second spur gear 31, and third spur gear 33 drives... The third drive shaft 32 and the first bevel gear 34 rotate in opposite directions. Through the meshing transmission between the first bevel gear 34 and the second bevel gear 35, the fourth drive shaft 24 and the insulating baffle 25 rotate, causing the insulating baffle 25 to move below the body 18 of the ejector fuse. When the fuse carrier tube 21 is not installed in place, the insulating baffle 25 cannot move below the body 18. When the fuse carrier tube 21 is installed in place, the insulating baffle 25 can move smoothly below the body 18. This serves two purposes: firstly, it limits the installation of the fuse carrier tube 21 on the body 18, ensuring that the fuse carrier tube 21 is installed correctly; secondly, it ensures that when closing the circuit breaker, the fuse is connected first, then the isolating switch is closed; and when opening the circuit breaker, the isolating switch is disconnected first, then the fuse is released.Finally, when the combined electrical appliance is remotely controlled, the remote control device sends a control signal to the wireless signal receiver controller 48. When the circuit breaker is tripped, the first electric telescopic rod 40 drives the first rubber push column 41 to move up and down once. The first rubber push column 41 pushes the rack 38 upward. The meshing transmission between the rack 38 and the fourth spur gear 27 drives the fourth spur gear 27, the first drive shaft 28, the insulating coupling 26, the rotating shaft 14, and the first spur gear 29 to rotate. The rotating shaft 14 drives the switch 15 to rotate outward, causing the second U-shaped terminal block 13 and the switch 15 to trip. In addition, the first spur gear 29, the second spur gear 31, the third spur gear 33, the first bevel gear 34, the second bevel gear 35, and the fourth drive shaft 24 drive the insulating baffle. 25 is moved away from below the body 18 of the ejector fuse. Additionally, when closing the circuit, the second electric telescopic rod 42 drives the second rubber push column 43 to move up and down once. The second rubber push column 43 pushes the rack 38 downwards. The meshing transmission between the rack 38 and the fourth spur gear 27 drives the fourth spur gear 27, the first drive shaft 28, the insulating coupling 26, the rotating shaft 14, and the first spur gear 29 to reverse. The rotating shaft 14 drives the switch 15 to rotate inwards, causing the second U-shaped terminal block 13 and the switch 15 to close. Furthermore, the first spur gear 29, the second spur gear 31, the third spur gear 33, the first bevel gear 34, the second bevel gear 35, and the fourth drive shaft 24 move the insulating baffle 25 to below the body 18 of the ejector fuse.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A jet-type fuse disconnector switch combination appliance, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is equipped with a switch mechanism (2), a fuse mechanism (3), an electric mechanism (4), a control mechanism (5), an interlocking mechanism (6), and a dust-blocking mechanism (7).

2. The jet-type fuse disconnector switch combination appliance according to claim 1, characterized in that: The switching mechanism (2) includes a first mounting bracket (8) and a second mounting bracket (9) bolted on the mounting bracket (1). A first insulating post (10) is fixedly mounted on the first mounting bracket (8), and a second insulating post (11) is fixedly mounted on the second mounting bracket (9). A first U-shaped terminal block (12) is fixedly mounted at the end of the second insulating post (11), and a second U-shaped terminal block (13) is fixedly mounted at the end of the first insulating post (10). A rotating shaft (14) is rotatably connected to the first U-shaped terminal block (12). A switch (15) is fixedly sleeved on the outside of the rotating shaft (14). The end of the switch (15) is sleeved to the inside of the second U-shaped terminal block (13). A handle (16) is fixedly mounted on the outside of the switch (15).

3. The jet-type fuse disconnector switch combination appliance according to claim 2, characterized in that: The fuse mechanism (3) includes a third mounting bracket (17) bolted on the mounting bracket (1), a jet-type fuse body (18) fixedly sleeved on the third mounting bracket (17), a first wiring cable (19) provided at the top of the jet-type fuse body (18), the end of the first wiring cable (19) being connected to the first U-shaped terminal block (12) by bolt assembly, a second wiring cable (20) provided on the side of the jet-type fuse body (18), and a fuse-carrying tube (21) sleeved on the inner side of the jet-type fuse body (18).

4. The jet-type fuse disconnector switch combination appliance according to claim 3, characterized in that: The interlocking mechanism (6) includes a stand (22) fixedly connected to the mounting bracket (1) and two support frames (23). A fourth drive shaft (24) is rotatably connected between the two support frames (23). An insulating baffle (25) is fixedly connected to the bottom end of the fourth drive shaft (24). The top surface of the insulating baffle (25) is in contact with the bottom end of the ejector fuse body (18) and the fuse carrier tube (21). A first drive shaft (28) is rotatably connected to the stand (22). A second drive shaft (30) is rotatably connected to the stand (22). A third drive shaft (32) is rotatably connected to the stand (22). A first spur gear (29) is fixedly sleeved on the side of the first drive shaft (28). The second drive shaft (29) is rotatably sleeved on the side of the first drive shaft (28). The side of the third drive shaft (30) is fixedly sleeved with a second spur gear (31), which meshes with the first spur gear (29). The side of the third drive shaft (32) is fixedly sleeved with a third spur gear (33), which meshes with the second spur gear (31). The side of the third drive shaft (32) is fixedly sleeved with a first bevel gear (34). The side of the fourth drive shaft (24) is fixedly sleeved with a second bevel gear (35), which meshes with the first bevel gear (34). The end of the first drive shaft (28) is fixedly connected with an insulating coupling (26), which is connected to one end of the rotating shaft (14).

5. A jet-type fuse disconnector switch combination appliance according to claim 4, characterized in that: The electric mechanism (4) includes two columns (36) fixedly connected to the mounting bracket (1). The ends of the two columns (36) are fixedly connected to a sliding box (37). The inner cavity of the sliding box (37) is slidably connected to a rack (38). The side of the rack (38) is meshed with a fourth spur gear (27). The fourth spur gear (27) is fixedly sleeved on the first transmission shaft (28). The top and bottom ends of the rack (38) are fixedly connected to slide rods (39). The two slide rods (39) are respectively movably sleeved with the sliding box (37). The bottom of the sliding box (37) is fixedly installed with a first electric telescopic rod (40). The output end of the first electric telescopic rod (40) extends into the inner cavity of the sliding box (37) and is fixedly connected to a first rubber push column (41). The top surface of the sliding box (37) is fixedly installed with a second electric telescopic rod (42). The output end of the second electric telescopic rod (42) extends into the inner cavity of the sliding box (37) and is fixedly connected to a second rubber push column (43).

6. The jet-type fuse disconnector switch combination appliance according to claim 1, characterized in that: The control mechanism (5) includes a mounting base (44) bolted on the mounting bracket (1), a power supply box (45) fixedly connected to the mounting base (44), a box door (46) hinged to the side of the power supply box (45), a power supply (47) provided in the inner cavity of the power supply box (45), and a wireless signal receiver controller (48) fixedly installed in the inner cavity of the power supply box (45).

7. The jet-type fuse disconnector switch combination appliance according to claim 1, characterized in that: The dust-blocking mechanism (7) includes two mounting plates (49) fixedly connected to the mounting bracket (1). Both mounting plates (49) are provided with screw holes (50). A transparent protective cover (51) is fitted on the outside of the two mounting plates (49). Two fastening bolts (52) are fitted on the transparent protective cover (51). The ends of the two fastening bolts (52) are respectively threaded into the inner cavity of the screw hole (50).

8. A jet-type fuse disconnector switch combination appliance according to claim 1, characterized in that: Mounting holes (53) are provided at both ends of the mounting bracket (1).

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