Electric power horizontal rotation type disconnecting switch

Abstract

The invention discloses an electric power horizontal rotation type disconnecting switch which comprises a U-shaped channel steel, a hollow bracket is fixed at the top end of the U-shaped channel steel, a plurality of input end insulators are installed on one side of the top end of the hollow bracket in parallel on the same horizontal line, and input end right-angle wire inlet plates are installed at the top ends of the input end insulators. And the other side of the top end of the hollow bracket is provided with a plurality of output end insulators in parallel on the same horizontal line. By adopting the structural design of the rotary locking unit and the column type bevel gear synchronous transmission assembly, a plurality of disconnecting switches can be switched on simultaneously in one operation, that is, an operator only needs to carry out one-time centralized operation instead of frequently moving among the plurality of disconnecting switches, so that the manpower and time are saved, and the working efficiency is improved. The high-efficiency operation mode is especially suitable for a large-scale electric power system, and can obviously shorten the power failure time and improve the response speed of the system under the emergency condition that power supply needs to be recovered quickly.

Description

Technical Field

[0001] The invention relates to the technical field of isolating switches, in particular to an electric horizontal rotary isolating switch. Background Art

[0002] High-voltage disconnectors are indispensable equipment in high-voltage power systems. They are mainly used to achieve safe isolation of circuits and cut off current to protect the safety of equipment and maintenance personnel. Its main function is to ensure that when electrical equipment is overhauled or maintained, the equipment can be effectively isolated from the power grid to prevent current from passing through, thereby avoiding the risk of electric shock and equipment damage. Structurally, high-voltage disconnectors are usually composed of several main parts, such as insulators, conductors, operating mechanisms, brackets, and protective devices. Insulators are generally made of ceramic or composite materials to ensure good insulation performance under high voltage; the conductor part uses copper or aluminum materials to ensure good conductivity. The operating mechanism is responsible for controlling the opening and closing of the switch, which is divided into manual and automatic types. Manual operation can be performed through a handle or a joystick, while automatic operation may be achieved through an electric motor or pneumatic device. The bracket is used to fix the various components of the switch to ensure its stability and safety during operation; For example, a double-column rotary isolating switch disclosed in application publication number CN117038379A comprises a base and a drive unit; the base: the left and right ends of the upper surface of the base are rotatably connected with ceramic insulating columns through bearings, the upper ends of the outer arc surfaces of the ceramic insulating columns are provided with conductive copper rods, and the two conductive copper rods are arranged in coordination, insulators are arranged at the left and right ends of the upper surface of the base, and transition shells are arranged at the upper ends of the two insulators, and the integral movable sleeve assembled by the insulators and the transition shells is arranged on the outside of the vertically corresponding ceramic insulating columns, and the installation openings on the upper surfaces of the two transition shells are provided with wiring copper plates, and the front side surfaces of the wiring copper plates are provided with two wiring holes, which realize automatic opening and closing of three points through single-stage drive, without manual operation by personnel, while ensuring the on-off quality of the isolating switch and reducing the risk of electric shock to personnel, However, during the implementation process, the above technical solution is mainly used in the docking scenario of the conductive connection plate and the output connection plate of a single set of disconnectors. For each additional connection point, the operator needs to perform more manual connections and adjustments. This complexity not only increases the workload, but also easily leads to human errors. For example, when the operator connects multiple conductive connection plates, a connection point may be missed, resulting in an incomplete circuit, which in turn affects the normal operation of the power system. Especially in a high-voltage environment, any improper connection will cause serious electrical failures. In addition, when multiple disconnectors are connected, the difficulty of maintenance and inspection is significantly increased. The operator must disconnect all disconnectors one by one, which is not only time-consuming, but also causes other power equipment to stop operating, affecting the operating efficiency of the entire power system. Summary of the invention

[0003] The object of the present invention is to provide an electric horizontal rotary disconnector, in which the right-angle incoming wire plate at the input end and the right-angle outgoing wire plate at the output end of each disconnector are conductively connected via a bent blade. When multiple disconnectors are closed synchronously for conductivity, power is transmitted to the eccentric rotary closing structure in each disconnector via a rotary locking unit and a row of bevel gear synchronous transmission components. The eccentric rotary closing structure drives the bent blade to swing down and overlap the right-angle outgoing wire plate at the output end, thereby enabling the right-angle incoming wire plate at the input end and the right-angle outgoing wire plate at the output end of multiple disconnectors to be connected simultaneously, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: an electric horizontal rotary isolating switch, comprising: A U-shaped channel steel, a hollow bracket is fixed on the top of the U-shaped channel steel, and a plurality of input insulators are installed in parallel on one side of the top of the hollow bracket on the same horizontal line, and an input right-angle incoming line plate is installed on the top of the input insulator, a plurality of output insulators are installed in parallel on the other side of the top of the hollow bracket on the same horizontal line, and an output right-angle outlet line plate is installed on the top of the output insulator, and a U-shaped frame is fixed on the back of the input right-angle incoming line plate; A rotating support, the rotating support is arranged at the top of the U-shaped frame, the top of the U-shaped frame is movably mounted with a bent knife for overlapping with the top of the right-angle outlet plate at the output end through the rotating support, and an eccentric rotating closing structure for pulling the bent knife to swing up or down is arranged on one side inside the U-shaped frame, and the eccentric rotating closing structure allows the bent knife and the right-angle outlet plate at the output end to contact or separate; A rotation locking unit is arranged on one side of the bottom of the hollow bracket, and a row of bevel gear synchronous transmission components are arranged on the outer walls of the same side of several U-shaped frames. The row of bevel gear synchronous transmission components are used to keep the eccentric rotary closing structure and the rotation locking unit in a power transmission state.

[0005] Preferably, a rectangular connector is fixed on one inner wall of the right-angle outlet plate at the output end, and a C-shaped mouthpiece which is interference-fitted with the rectangular connector is provided at one end of the bent knife blade close to the right-angle outlet plate at the output end.

[0006] Preferably, vertical arms are fixed at the corner positions of the bottom ends of the U-shaped frame, and the bottom ends of the vertical arms are fixedly connected to the top ends of the hollow brackets.

[0007] Preferably, the rotation locking unit includes a motor, a worm gear reducer and a first bearing seat installed at the bottom of the hollow bracket, the output end of the motor and the input end of the worm gear reducer are interconnected through a coupling, and a horizontal axis is rotatably installed inside the first bearing seat, and one end of the horizontal axis is interconnected with the output end of the worm gear reducer.

[0008] Preferably, a worm is rotatably installed inside the worm gear reducer, a worm wheel is rotatably installed inside the worm gear reducer above the worm, the output end of the motor is fixedly connected to one end of the worm through a coupling, and the transverse axis is fixedly connected to the worm wheel.

[0009] Preferably, the column bevel gear synchronous transmission assembly includes a second bearing seat fixed on the outer wall of one side of the U-shaped frame, a vertical shaft rotatably installed inside the lower bevel gear transmission structure, and a lower bevel gear transmission structure and an upper bevel gear transmission structure installed at the top and bottom ends of the vertical shaft. The bottom end of the vertical shaft maintains power transmission with the horizontal shaft through the upper bevel gear transmission structure.

[0010] Preferably, the eccentric rotary closing structure includes a second stand fixed on one side of the top end of the U-shaped frame, a driven shaft rotatably installed inside the second stand, an eccentric wheel unit fixed at one end of the driven shaft, and a square arm fixed at the bottom end of the bent type switch blade, a Y-shaped fork is hinged on the outer wall of one side of the eccentric wheel unit, the other end of the Y-shaped fork is hinged to the square arm, and the opposite ends of the driven shaft and the vertical shaft are connected to each other through a lower bevel gear transmission structure.

[0011] Preferably, the rotating support member includes a first stand fixed on the other side of the top of the U-shaped frame, a convex shaft fixed on the outer wall of one side of the first stand, and an inverted U-table mounted on the surface of the convex shaft, the top of the inverted U-table is fixedly connected to the bottom end of the bent type gate knife, and one end of the driven shaft extends to the interior of the inverted U-table.

[0012] Preferably, the bent blade and C-mouth are integrally cast from copper.

[0013] Preferably, damping shock absorbers for supporting the bent type gate knife are provided on both inner walls of the U-shaped frame, the bottom end of the cylinder of the damping shock absorber is hingedly mounted on one inner wall of the U-shaped frame, and the top end of the piston rod of the damping shock absorber is hingedly connected to the bottom end of the bent type gate knife.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the horizontal rotary isolating switch of the electric power adopts the structural design of the rotary locking unit and the column bevel gear synchronous transmission assembly, so that multiple isolating switches can be closed at the same time in one operation, that is, the operator only needs to perform one centralized operation instead of frequently moving between multiple isolating switches, which saves manpower and time. This efficient operation mode is particularly suitable for large-scale power systems. In emergency situations where power supply needs to be quickly restored, it can significantly shorten the power outage time and improve the response speed of the system. In addition, due to the design of the eccentric rotary closing structure, all isolating switches are closed or opened synchronously at the same time, ensuring uniform distribution of current and reducing the working time of operators in high-voltage environments. It can effectively reduce the risk of electric shock and other safety accidents, and the synchronous closing of multiple isolating switches can quickly respond to changes in power demand. For example, during peak load periods, multiple isolating switches can be quickly closed to meet demand; and when the load is reduced, they can also be quickly disconnected, thereby optimizing the use of power resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 4 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 5 The three-dimensional structure of the second embodiment of the present invention is shown in FIG. Figure 1 ; Figure 6 The three-dimensional structure of the second embodiment of the present invention is shown in FIG. Figure 2 ; Figure 7 The three-dimensional structure diagram of the eccentric rotary closing structure of the third embodiment of the present invention Figure 1 ; Figure 8 The three-dimensional structure diagram of the eccentric rotary closing structure of the third embodiment of the present invention Figure 2 .

[0016] In the figure: 1, U-shaped channel steel; 2, hollow bracket; 3, output insulator; 4, output right-angle outlet plate; 401, rectangular connector; 5, input insulator; 6, input right-angle inlet plate; 7, U-shaped frame; 701, vertical arm; 8, rotating support; 801, first vertical seat; 802, convex shaft; 803, inverted U platform; 9, bent knife; 901, C head; 10, damping shock absorber; 11, rotation locking unit; 1101, First bearing seat; 1102, horizontal axis; 1103, worm gear reducer; 12, column bevel gear synchronous transmission assembly; 1201, second bearing seat; 1202, vertical axis; 1203, upper bevel gear transmission structure; 1204, lower bevel gear transmission structure; 13, eccentric rotary closing structure; 1301, second vertical seat; 1302, driven shaft; 1303, eccentric wheel unit; 1304, square arm; 1305, Y-byte fork. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment 1, by Figures 1 to 4 The present invention comprises a U-shaped channel steel 1, a hollow bracket 2 is fixed on the top of the U-shaped channel steel 1, and a plurality of input insulators 5 are installed in parallel on one side of the top of the hollow bracket 2 on the same horizontal line, and an input right-angle incoming line plate 6 is installed on the top of the input insulator 5, a plurality of output insulators 3 are installed in parallel on the other side of the top of the hollow bracket 2 on the same horizontal line, and an output right-angle outlet line plate 4 is installed on the top of the output insulator 3, a U-shaped frame 7 is fixed on the back of the input right-angle incoming line plate 6, and the U-shaped The corner positions at the bottom of the frame 7 are all fixed with vertical arms 701, and the bottom ends of the vertical arms 701 are fixedly connected to the top of the hollow bracket 2. The input end insulator 5 is used to insulate and isolate the current of the high-voltage power line to prevent current leakage, and the input end right-angle incoming line plate 6 is responsible for introducing the current into the isolating switch to form a circuit connection. The output end insulator 3 also plays the role of insulation isolation to ensure that the current will not leak to other equipment or the ground. The output end right-angle outlet plate 4 leads the current from the isolating switch to the downstream equipment; A rotating support 8 is provided at the top of the U-shaped frame 7. A bending knife 9 for overlapping the top of the right-angle outlet plate 4 at the output end is movably installed at the top of the U-shaped frame 7 through the rotating support 8. An eccentric rotating closing structure 13 for pulling the bending knife 9 up or down is provided on one side of the interior of the U-shaped frame 7. The eccentric rotating closing structure 13 allows the bending knife 9 and the right-angle outlet plate 4 at the output end to contact or separate. The bending knife 9 is the main conductive connection component. When the bending knife 9 is closed, it can make the right-angle incoming line plate 6 at the input end and the U-shaped frame 7 closely contact to form current conduction. When it is disconnected, the current is cut off to ensure safe isolation of the circuit. A rotation locking unit 11 is arranged on one side of the bottom of the hollow bracket 2. A column bevel gear synchronous transmission assembly 12 is arranged on the outer wall of the same side of the plurality of U-shaped frames 7. The column bevel gear synchronous transmission assembly 12 is used to keep the eccentric rotary closing structure 13 and the rotation locking unit 11 in a power transmission state. The column bevel gear synchronous transmission assembly 12 and the eccentric rotary closing structure 13 realize the synchronous action of the bent blades 9 on multiple disconnectors through gear transmission, ensuring that all disconnectors are closed or disconnected at the same time; The eccentric rotary closing structure 13 can effectively convert the rotary motion into the downward or upward swinging motion of the bent blade 9, thereby realizing the closing and disconnecting functions; A rectangular connector 401 is fixed on the inner wall of one side of the right-angle outlet plate 4 at the output end, and a C-shaped mouthpiece 901 which is interference-fitted with the rectangular connector 401 is provided at one end of the bent blade 9 close to the right-angle outlet plate 4 at the output end.

[0019] Embodiment 2, based on embodiment 1, Figure 5 and Figure 6It is given that the rotation locking unit 11 includes a motor, a worm gear reducer 1103 and a first bearing seat 1101 installed at the bottom of the hollow bracket 2. The output end of the motor is connected to the input end of the worm gear reducer 1103 through a coupling. The first bearing seat 1101 is internally rotatably installed with a horizontal shaft 1102, one end of the horizontal shaft 1102 is connected to the output end of the worm gear reducer 1103, the worm is internally rotatably installed with the worm gear reducer 1103, and a worm is internally rotatably installed with the worm gear reducer 1103 above the worm. The output end of the motor is fixed to one end of the worm through a coupling. The horizontal axis 1102 is connected, and the horizontal axis 1102 is fixedly connected with the worm gear. The staff communicates with the motor in the rotation locking unit 11 through an external motor controller to facilitate the control of the motor to move. When the motor is running, it will transmit the rotational power to the worm gear reducer 1103, and the worm gear reducer 1103 drives the horizontal axis 1102 to rotate. The worm gear in the worm gear reducer 1103 has a self-locking function, which can ensure that the disconnector remains stable in the closed or disconnected state, and will not be accidentally switched on or off due to external force or operating errors, especially during equipment maintenance or overhaul, which reduces the risk of operators; The worm gear reducer 1103 has high strength and durability, and can withstand mechanical stress under high pressure environment, ensuring long-term operation without failure; The column bevel gear synchronous transmission assembly 12 includes a second bearing seat 1201 fixed on the outer wall of one side of the U-shaped frame 7, a vertical shaft 1202 rotatably installed inside a lower bevel gear transmission structure 1204, and a lower bevel gear transmission structure 1204 and an upper bevel gear transmission structure 1203 installed at the top and bottom ends of the vertical shaft 1202. The bottom end of the vertical shaft 1202 maintains power transmission with the horizontal shaft 1102 through the upper bevel gear transmission structure 1203, and the horizontal shaft 1102 transmits action to each vertical shaft 1202 through the upper bevel gear transmission structure 1203. The vertical shaft 1202 drives the eccentric rotary closing structure 13 to move through the lower bevel gear transmission structure 1204. In this process, the second bearing seat 1201 serves to assist the rotation of the vertical shaft 1202. The column bevel gear synchronous transmission assembly 12 ensures that the eccentric rotary closing structures 13 in all disconnectors can be closed or disconnected at the same time through the bevel gear transmission mechanism, thereby reducing the risk of equipment damage caused by asynchronous operation.

[0020] Embodiment 3, based on embodiment 2, Figure 7 and Figure 8It is given that the eccentric rotary closing structure 13 includes a second stand 1301 fixed to one side of the top of the U-shaped frame 7, a driven shaft 1302 rotatably installed inside the second stand 1301, an eccentric wheel monomer 1303 fixed at one end of the driven shaft 1302, and a square arm 1304 fixed to the bottom end of the bent type switch blade 9, a Y-shaped fork 1305 is hinged on the outer wall of one side of the eccentric wheel monomer 1303, the other end of the Y-shaped fork 1305 is hinged to the square arm 1304, the driven shaft 1302 and the opposite ends of the stand 1202 are connected to each other through the lower bevel gear transmission structure 1204, when the eccentric rotary closing structure 13 receives the column bevel gear synchronous transmission assembly After the rotational power is transmitted by 12, the driven shaft 1302 will drive the eccentric wheel monomer 1303 to rotate. Since the square arm 1304 and the eccentric wheel monomer 1303 are connected by the Y-byte fork 1305, when the eccentric wheel monomer 1303 rotates around the driven shaft 1302, the displacement of the eccentric wheel monomer 1303 relative to the axis will form an eccentric motion on its motion path, and its eccentric motion will be converted into an upward or downward swinging action of the square arm 1304 and the bending type switch blade 9 through the Y-byte fork 1305. The function of closing or disconnecting can be realized through this up and down movement, so that the bending type switch blade 9 and the right-angle outlet plate 4 at the output end can be quickly contacted or separated; The rotating support 8 includes a first stand 801 fixed on the other side of the top of the U-shaped frame 7, a convex shaft 802 fixed on the outer wall of one side of the first stand 801, and an inverted U-shaped platform 803 mounted on the surface of the convex shaft 802. The top of the inverted U-shaped platform 803 is fixedly connected to the bottom end of the bending knife 9, and one end of the driven shaft 1302 extends to the inside of the inverted U-shaped platform 803. When the eccentric rotating closing structure 13 pushes the bending knife 9 to move up and down, the bending knife 9 will drive the inverted U-shaped platform 803 to rotate and swing with the convex shaft 802 as the central axis. Since the bending knife 9 needs to withstand large mechanical forces and repeatedly perform mechanical movements during the closing and opening operations, the rotating support 8 can effectively disperse the points of action of these forces and reduce the friction resistance of the bending knife 9 during the flipping process, so that each operation is smoother. The bending blade 9 and C-mouth 901 are integrally cast with copper. The bending blade 9 and C-mouth 901 are made of copper, which can ensure that the current can pass with extremely low resistance during high-voltage power transmission. Both inner walls of the U-shaped frame 7 are provided with damping shock absorbers 10 for supporting the bent blade 9. The bottom end of the cylinder of the damping shock absorber 10 is hingedly mounted on one inner wall of the U-shaped frame 7. The top end of the piston rod of the damping shock absorber 10 is hingedly connected to the bottom end of the bent blade 9. The damping shock absorber 10 serves to mitigate the downward swing force of the bent blade 9, thereby avoiding excessive contact pressure between the bent blade 9 and the output right-angle outlet plate 4 due to the excessively fast movement of the eccentric rotating closing structure 13.

[0021] When the embodiment of the present application is used, first, before performing the closing operation, ensure that the bent blades 9 of all disconnecting switches are in a disconnected state from the right-angle outlet plate 4 at the output end, the rotary locking unit 11 is in a standby state, and all insulators and connecting plates are in a normal working position. The operator sends a closing command to the rotary locking unit 11 through the motor controller. After the rotary locking unit 11 receives the command, its internal motor starts working to allow the closing operation to be performed. The rotary power of the rotary locking unit 11 is transmitted to the eccentric rotary closing structure 13 of each disconnecting switch through the column bevel gear synchronous transmission assembly 12, that is, it starts to operate after receiving the rotary power of the column bevel gear synchronous transmission assembly 12, and the gear transmission The power is transmitted to each eccentric rotary closing structure 13. The eccentric rotary closing structure 13 starts to rotate after receiving the power, pushing the bent knife 9 to swing downward. During this process, the rotating support 8 provides stable support for the swing of the bent knife 9 to ensure that it is not easy to shake or deflect during the flipping and swinging process. At this time, the lower end of the bent knife 9 will contact the right-angle outlet plate 4 at the output end and form a conductive connection. As the bent knife 9 swings downward, the circuit between the right-angle incoming plate 6 at the input end and the right-angle outlet plate 4 at the output end is closed, the current begins to flow, and multiple isolating switches are closed synchronously. After the closing is completed, the rotary locking unit 11 stops moving and locks again to ensure that the closing state remains stable and prevent accidental disconnection.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric horizontal rotary isolating switch, characterized in that: include: A U-shaped channel steel (1), a hollow bracket (2) is fixed to the top of the U-shaped channel steel (1), and a plurality of input-end insulators (5) are installed in parallel on one side of the top of the hollow bracket (2) on the same horizontal line, and an input-end right-angle incoming wire plate (6) is installed on the top of the input-end insulator (5), a plurality of output-end insulators (3) are installed in parallel on the other side of the top of the hollow bracket (2) on the same horizontal line, and an output-end right-angle outgoing wire plate (4) is installed on the top of the output-end insulator (3), and a U-shaped frame (7) is fixed to the back of the input-end right-angle incoming wire plate (6); A rotating support member (8), the rotating support member (8) being arranged at the top end of a U-shaped frame (7), the top end of the U-shaped frame (7) being movably mounted with a bent blade (9) for overlapping with the top end of a right-angle outlet plate (4) at the output end through the rotating support member (8), an eccentric rotating closing structure (13) for pulling the bent blade (9) to swing up or down being arranged on one side inside the U-shaped frame (7), the eccentric rotating closing structure (13) allowing the bent blade (9) and the right-angle outlet plate (4) at the output end to contact or separate; A rotation locking unit (11) is arranged on one side of the bottom of the hollow bracket (2), and a row bevel gear synchronous transmission assembly (12) is arranged on the outer wall of the same side of a plurality of the U-shaped frames (7). The row bevel gear synchronous transmission assembly (12) is used to maintain a power transmission state between the eccentric rotary closing structure (13) and the rotation locking unit (11).

2. The horizontal rotary isolating switch according to claim 1, characterized in that: A rectangular connector (401) is fixed to one inner wall of the right-angle outlet plate (4) at one side of the output end, and a C-shaped mouthpiece (901) which is interference-fitted with the rectangular connector (401) is provided at one end of the bent blade (9) close to the right-angle outlet plate (4) at the output end.

3. The horizontal rotary isolating switch according to claim 1, characterized in that: A vertical arm (701) is fixed at the corner position of the bottom end of the U-shaped frame (7), and the bottom end of the vertical arm (701) is fixedly connected to the top end of the hollow bracket (2).

4. The horizontal rotary isolating switch according to claim 1, characterized in that: The rotation locking unit (11) comprises a motor mounted at the bottom of the hollow bracket (2), a worm gear reducer (1103) and a first bearing seat (1101); the output end of the motor and the input end of the worm gear reducer (1103) are connected to each other via a coupling; a transverse shaft (1102) is rotatably mounted inside the first bearing seat (1101); one end of the transverse shaft (1102) is connected to the output end of the worm gear reducer (1103).

5. The horizontal rotary isolating switch according to claim 4, characterized in that: A worm is rotatably mounted inside the worm gear reducer (1103), a worm wheel is rotatably mounted inside the worm gear reducer (1103) above the worm, the output end of the motor is fixedly connected to one end of the worm via a coupling, and the transverse shaft (1102) is fixedly connected to the worm wheel.

6. The horizontal rotary isolating switch according to claim 4, characterized in that: The column bevel gear synchronous transmission assembly (12) comprises a second bearing seat (1201) fixed on an outer wall of one side of the U-shaped frame (7), a vertical shaft (1202) rotatably mounted inside a lower bevel gear transmission structure (1204), and a lower bevel gear transmission structure (1204) and an upper bevel gear transmission structure (1203) mounted on the top and bottom ends of the vertical shaft (1202); the bottom end of the vertical shaft (1202) maintains power transmission with the horizontal shaft (1102) via the upper bevel gear transmission structure (1203).

7. The horizontal rotary isolating switch according to claim 6, characterized in that: The eccentric rotary closing structure (13) comprises a second stand (1301) fixed to one side of the top end of the U-shaped frame (7), a driven shaft (1302) rotatably mounted inside the second stand (1301), an eccentric wheel unit (1303) fixed to one end of the driven shaft (1302), and a square arm (1304) fixed to the bottom end of the bent blade (9); a Y-shaped fork (1305) is hingedly connected to an outer wall of one side of the eccentric wheel unit (1303); the other end of the Y-shaped fork (1305) is hingedly connected to the square arm (1304); and the opposite ends of the driven shaft (1302) and the stand (1202) are connected to each other via a bottom bevel gear transmission structure (1204).

8. The horizontal rotary isolating switch according to claim 7, characterized in that: The rotating support member (8) comprises a first stand (801) fixed to the other side of the top of the U-shaped frame (7), a convex shaft (802) fixed to the outer wall of one side of the first stand (801), and an inverted U-shaped platform (803) mounted on the surface of the convex shaft (802), the top of the inverted U-shaped platform (803) being fixedly connected to the bottom end of the bent blade (9), and one end of the driven shaft (1302) extending to the inside of the inverted U-shaped platform (803).

9. The horizontal rotary isolating switch according to claim 2, characterized in that: The bent blade (9) and the C-shaped mouthpiece (901) are integrally cast from copper.

10. The horizontal rotary isolating switch according to claim 8, characterized in that: Both inner walls of the U-shaped frame (7) are provided with damping shock absorbers (10) for supporting the bent blade (9); the bottom end of the cylinder of the damping shock absorber (10) is hingedly mounted on one inner wall of the U-shaped frame (7); the top end of the piston rod of the damping shock absorber (10) is hingedly connected to the bottom end of the bent blade (9).

Images