Anti-error outdoor high-voltage combined electric appliance device for electrified railway

Abstract

The invention discloses an electrified railway anti-misoperation outdoor high-voltage combined electric appliance device, which comprises an anti-misoperation spring energy storage device, an isolating switch linkage mechanism and a circuit breaker linkage mechanism, and is characterized in that the anti-misoperation spring energy storage device consists of an energy storage shaft, an energy storage spring and an energy storage transmission connecting rod; the anti-misoperation spring energy storage device is further provided with an energy storage limiting mechanism for preventing the energy storage shaft from rotating mistakenly after the energy storage spring stores energy, and an opening and closing trigger mechanism for tripping the energy storage limiting mechanism. The integrated spring energy storage transmission device has a mechanical interlocking function and can prevent misoperation, the integrated switch structure ensures firmness and mechanical reliability, connecting wires among equipment during dispersed installation are eliminated, the occupied area is reduced by more than 40% compared with traditional discrete arrangement, centralized maintenance is convenient, and the integrated switch structure is simple in structure and convenient to operate. And the overhaul and maintenance work efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of high-voltage switches for electrified railway power supply, and particularly to an anti-misoperation outdoor high-voltage combined electrical apparatus for electrified railways. Background Art

[0002] In the current traction power supply system of electrified railways, primary equipment such as outdoor circuit breakers, outdoor disconnectors, and current transformers at 27.5 kV are often installed independently, having the following defects: (1) The operating mechanisms of the high-voltage disconnector and the circuit breaker are set separately, and there is no mechanical interlock between the mechanisms. Maloperation is likely to cause major accidents such as explosions and fires; (2) The dispersion of equipment results in a large floor area, which is not conducive to flexible outdoor deployment; (3) Wires are required to connect between the equipment, increasing the contact resistance and fault points; (4) Maintenance and repair require separate operations on multiple pieces of equipment, resulting in low operation efficiency; (5) Outdoor insulators are easily affected by the outdoor environment, resulting in a decrease in insulation level. Summary of the Invention

[0003] The purpose of the present invention is to provide a combined electrical apparatus for an anti-misoperation outdoor high-voltage circuit breaker and disconnector in an electrified railway. The apparatus integrates the outdoor circuit breaker, disconnector, and current transformer, solving the problems of the current scattered installation of outdoor primary equipment, inability to interlock with each other, low maintenance efficiency, reducing wiring fault points, and facilitating maintenance.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: an anti-misoperation outdoor high-voltage combined electrical apparatus for electrified railways, including an anti-misoperation spring energy storage device, a disconnector linkage mechanism, and a circuit breaker linkage mechanism. The disconnector linkage mechanism is composed of a main shaft, a main shaft crank arm, a disconnector insulating pull rod, and a disconnector crank arm. The main shaft crank arm and the disconnector crank arm are both fixed on the main shaft, and the disconnector crank arm is connected to the disconnector through the disconnector insulating pull rod. The anti-misoperation spring energy storage device is composed of an energy storage shaft, an energy storage spring, and an energy storage transmission link. The energy storage transmission link is composed of a transmission crank arm, a push rod, a rotating rod, and an energy storage crank arm that are sequentially rotationally connected. The transmission crank arm is fixed on the main shaft, the energy storage crank arm is fixed on the energy storage shaft, and the anti-misoperation spring energy storage device is also provided with an energy storage limit mechanism for preventing the energy storage shaft from rotating erroneously after the energy storage spring is energized, and a closing and opening trigger mechanism for tripping the energy storage limit mechanism. The circuit breaker linkage mechanism is composed of a second crank arm of the energy storage shaft and a second link transmission mechanism. The second crank arm of the energy storage shaft is fixed on the energy storage shaft and drives the circuit breaker insulating pull rod of the circuit breaker to move up and down through the second link transmission mechanism.

[0005] Preferably, the energy storage limit mechanism consists of a limit rod, an initial limit hook and an energy storage limit hook. The limit rod is installed on the push rod and is close to the rotational connection between the push rod and the rotating rod. The initial limit hook limits the position of the push rod before energy storage through the limit rod, and the energy storage limit hook limits the position of the push rod after energy storage.

[0006] Preferably, the initial limit hook and the energy storage limit hook are both fixed on the rack to be installed.

[0007] Preferably, the opening and closing trigger mechanism consists of a first crank arm of the energy storage shaft, a limit movable rotating arm, a rotating shaft, a trigger rod, a trigger hook rod and a first connecting rod. The first crank arm of the energy storage shaft is fixed on the energy storage shaft, and the first crank arm of the energy storage shaft is rotatably connected to the rotating shaft through the limit movable rotating arm. The trigger rod is fixed to the middle part of the limit movable rotating arm, and the middle part of the trigger hook rod is rotatably connected to the rotating shaft. The right end of the trigger hook rod is transmission-connected to the main shaft through the first connecting rod, and the left end of the trigger hook rod is located above the trigger rod. The trigger hook rod rotates to drive the trigger rod to rotate the energy storage shaft, thereby disengaging the limit rod from the energy storage limit hook.

[0008] Preferably, the second connecting rod transmission mechanism consists of a second connecting rod, a pull rod A, a positioning rod A and a push rod A, the upper end of the pull rod A is rotatably connected to the second connecting rod, and the lower end is rotatably connected to the middle part of the positioning rod A, the lower end of the push rod A is rotatably connected to the middle part of the pull rod A, and the upper end of the push rod A is rotatably connected to the lower end of the insulating pull rod of the circuit breaker through a guide shaft, and a guide groove is vertically opened on the frame to be installed to facilitate the guide shaft to slide up and down.

[0009] Preferably, it also includes a buffer mechanism, which consists of a pressure plate, a buffer spring, a spring rod and a spring seat, the spring seat is fixed on the frame to be installed, the buffer spring is located between the pressure plate and the spring seat, the upper end of the spring rod is fixed to the pressure plate, and the lower end passes through the buffer spring and the spring seat, and is rotatably connected to the left end of the positioning rod A, and the right end of the positioning rod A is rotatably connected to the frame to be installed.

[0010] Preferably, it also includes a rack to be installed, the rack adopts a double-column steel structure frame, and is provided with an isolating switch, a circuit breaker, a current transformer, a spring energy storage device to prevent misoperation, an isolating switch linkage mechanism and a circuit breaker linkage mechanism.

[0011] Preferably, it further comprises an electric operating mechanism, a driving crank arm and a transmission rod, wherein the electric operating mechanism controls the rotation of the driving crank arm and is connected to the main shaft crank arm through a transmission connecting rod.

[0012] Preferably, the upper end of the isolating switch insulating pull rod is rotatably connected to the middle part of the blade of the isolating switch through a rotating shaft rod. A delay groove is provided at the connection between the isolating switch insulating pull rod and the isolating switch. The rotating shaft rod is located in the delay groove and is slidably connected to the delay groove.

[0013] Preferably, the top of the post insulator of the isolating switch has a large umbrella skirt structure.

[0014] Compared with the prior art, the advantages of the present invention are as follows: (1) Improved reliability: The circuit breaker and the isolating switch share one electric operating mechanism, reducing the complexity of operation. The integrated spring energy storage transmission device has a mechanical interlock function to prevent misoperation. This integrated switch structure ensures firmness and mechanical reliability. At the same time, the connecting wires between devices during decentralized installation are eliminated, reducing the contact resistance by 60%.

[0015] (2) Space optimization: The integrated layout of the circuit breaker and the isolating switch reduces the floor area by more than 40% compared with the traditional discrete layout, and the layout in the substation is more flexible.

[0016] (3) Convenient maintenance: Centralized maintenance improves the efficiency of overhaul and maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the anti-misoperation spring energy storage device of the present invention; Figure 3 is a schematic diagram of the energy storage limit mechanism of the present invention; Figure 4 is a schematic diagram of the closing and opening trigger mechanism of the present invention; Figure 5 is a schematic diagram of the second link transmission mechanism of the present invention.

[0018] In the figure: 1, frame; 2, isolating switch; 3, circuit breaker; 4, current transformer; 5, electric operating mechanism; 51, driving crank arm; 52, transmission rod; 6, circuit breaker insulating pull rod; 7, isolating switch linkage mechanism; 71, main shaft; 72, main shaft crank arm; 73, isolating switch crank arm; 74, isolating switch insulating pull rod; 75, delay groove; 8. Anti-misoperation spring energy storage device; 81. Energy storage shaft; 82. Energy storage spring; 83. Energy storage drive connecting rod; 831. Drive crank arm; 832. Push rod; 833. Rotating rod; 834. Energy storage crank arm; 84. Energy storage limit mechanism; 841. Initial limit hook; 842. Energy storage limit hook; 843. Limit rod; 85. Closing and opening trigger mechanism; 851. First crank arm of energy storage shaft; 852. Limit movable rotating arm; 853. Rotating shaft; 854. Trigger rod; 855. Trigger hook rod; 856. First connecting rod; 9. Circuit breaker linkage mechanism; 91. Second crank arm of energy storage shaft; 92. Second connecting rod drive mechanism; 921. Second connecting rod; 922. Tie rod A; 923. Positioning rod A; 924. Push rod A; 925. Guide rotating shaft; 926. Guide groove; 93. Buffer mechanism; 931. Pressure plate; 932. Buffer spring; 933. Spring seat; 934. Spring rod. Specific embodiments

[0019] The present invention will be further described as follows: An anti-misoperation outdoor high-voltage combined electrical apparatus for electrified railways, see Figure 1 , including an anti-misoperation spring energy storage device 8, a disconnector linkage mechanism 7, and a circuit breaker linkage mechanism 9, The disconnector linkage mechanism 7 is composed of a main shaft 71, a main shaft crank arm 72, a disconnector insulating tie rod 74, and a disconnector crank arm 73. The main shaft crank arm 72 and the disconnector crank arm 73 are both fixed on the main shaft 71. The disconnector crank arm 73 is connected to the disconnector 2 through the disconnector insulating tie rod 74; The anti-misoperation spring energy storage device 8 is composed of an energy storage shaft 81, an energy storage spring 82, and an energy storage drive connecting rod 83. See Figure 2 , The energy storage drive connecting rod 83 is composed of a drive crank arm 831, a push rod 832, a rotating rod 833, and an energy storage crank arm 834 that are sequentially rotationally connected. The drive crank arm 831 is fixed on the main shaft 71, the energy storage crank arm 834 is fixed on the energy storage shaft 81, and the main shaft 71 rotates synchronously with the energy storage shaft 81 through the energy storage drive connecting rod 83 to store energy in the energy storage spring 82. The anti-misoperation spring energy storage device 8 is also provided with an energy storage limit mechanism 85 for preventing the energy storage shaft 81 from rotating by mistake after the energy storage spring 82 stores energy, and a closing and opening trigger mechanism for tripping the energy storage limit mechanism 85; The circuit breaker linkage mechanism 9 is composed of a second crank arm 91 of the energy storage shaft and a second link transmission mechanism 92. The second crank arm 91 of the energy storage shaft is fixed on the energy storage shaft 81 and drives the circuit breaker insulating pull rod 6 of the circuit breaker 3 to move up and down through the second link transmission mechanism 92. The anti-misoperation spring energy storage device 8 of the present invention realizes the integrated operation control of the disconnector 2 and the circuit breaker 3. It can be achieved through one electric operating mechanism, realizing the closing and opening of the disconnector 2 and the circuit breaker 3, and meeting the requirements of the high-voltage power-on and power-off operation sequences. Moreover, it has a mechanical interlock function to prevent misoperation. This integrated switch structure ensures firmness and mechanical reliability, while eliminating the connecting wires between devices during decentralized installation and reducing the contact resistance by 60%.

[0020] The energy storage limit mechanism 85 is composed of a limit rod, an initial limit hook, and an energy storage limit hook. Refer to Figure 3 , the limit rod is installed on the push rod 832 and is close to the rotation connection point of the push rod 832 and the rotating rod 833. The initial limit hook positions the push rod 832 before energy storage through the limit rod, and the energy storage limit hook positions the push rod 832 after energy storage. Both the initial limit hook and the energy storage limit hook are fixed on the frame 1 to be installed. During the process of the main shaft 71 driving the energy storage shaft 81 to rotate for energy storage, the push rod 832 pushes towards the energy storage shaft 81, and the limit rod is pushed from the initial limit hook to the energy storage limit hook for hanging and limiting. Before closing and energy storage, the limit rod is located at the initial limit hook, which can prevent misoperation caused by the main shaft 71 rotating clockwise; when the main shaft 71 rotates counterclockwise for energy storage, the energy storage transmission link 83 advances towards the energy storage shaft 81, driving the energy storage shaft 81 to rotate counterclockwise for energy storage at the same time. When the energy storage shaft 81 advances to the set position, the energy storage is completed. At this time, the limit rod just engages with the energy storage limit hook, keeping the main shaft 71 and the energy storage spring 82 in the energy storage state continuously. When misoperation occurs to the circuit breaker 3 or the energy storage spring 82, the energy storage spring 82 rotates clockwise. Since the main shaft 71 does not rotate, the push rod 832 will remain in place, and the rotating rod 833 can only rotate downward around the push rod 832. At this time, the limit post located in the energy storage limit hook cannot be tripped, so misoperation can be effectively prevented. The limit post can only be tripped when the main shaft 71 rotates slightly counterclockwise and the energy storage spring 82 releases energy to rotate the energy storage shaft 81 clockwise, causing the rotation connection point of the push rod 832 and the rotating rod 833 to arch upward, and the limit rod can then disengage from the energy storage limit hook. Then the energy storage spring 82 releases its elastic force to drive the energy storage shaft 81 to rotate clockwise, pushing the push rod 832 in the reverse direction through the rotating rod 833, driving the main shaft 71 to rotate clockwise for the disconnector 2 to open. The working rotation directions of the energy storage shaft 81 and the main shaft 71 of the present invention are based on Figure 1 as the reference.

[0021] In order to realize the tripping of the limit rod and the energy storage limit hook, a tripping and closing trigger mechanism is designed, see Figure 4 The opening and closing trigger mechanism is composed of a first crank arm 851 of the energy storage shaft, a limit movable rotating arm 852, a rotating shaft 853, a trigger rod 854, a trigger hook rod 855 and a first connecting rod 856. The first crank arm 851 of the energy storage shaft is fixed on the energy storage shaft 81. The first crank arm 851 of the energy storage shaft is rotatably connected to the rotating shaft 853 through the limit movable rotating arm 852. The limit movable rotating arm 852 is a movable mechanism formed by two support arms hinged together. The maximum rotation angle of the two support arms is 180°. The two support arms are composed of a support arm A and a support arm B. The support arm A is groove-shaped, and the support arm B is groove-shaped. The end of the trigger rod 855 is in the groove and is rotatably hinged with the support arm A. When the support arm B rotates, due to the limit blocking at the end of the support arm A, the support arm B can only rotate a maximum of 180°. At this time, the energy storage spring is in the energy storage completed state; the trigger rod 854 is fixed to the middle part of the limit movable rotating arm 852, and the middle part of the trigger hook rod 855 is rotatably connected with the rotating shaft 853. The right end of the trigger hook rod 855 is transmission connected with the main shaft 71 through the first connecting rod 856. The left end of the trigger hook rod 855 is located above the trigger rod 854. The trigger hook rod 855 rotates and toggles the trigger rod 854 to rotate the energy storage shaft 81. The specific method is as follows. Through the design of its length, when the energy storage spring 82 is energy stored in place and is locked by the limit rod and the energy storage limit hook, the limit movable rotating arm 852 is in a straight line state. When it is driven by the electric operating mechanism 5 The limit rod and the energy storage limit hook can be disengaged by slightly rotating the movable main shaft 71 in the counterclockwise direction. The disengagement principle is as follows: when the main shaft 71 rotates slightly clockwise, it drives the first connecting rod 856 to pull the right end of the trigger hook rod 855, so that the trigger hook rod 855 rotates, and the left end of the trigger hook rod 855 presses the trigger rod 854 downward, breaking the linear balance of the limit movable rotating arm 852. At this time, the energy storage spring 82 begins to release energy to make the energy storage shaft 81 rotate clockwise. At the same time, due to the rotation of the main shaft 71, the push rod 832 of the energy storage transmission connecting rod 83 will also move forward. At this time, the connection with the rotating rod 833 will be slightly arched, so that the limit column and the energy storage limit hook are disengaged; when the disengagement is completed, the electric operating mechanism 5 does not work, and the energy storage spring 82 drives the energy storage shaft 81 to rotate clockwise to perform the disconnection operation of the isolating switch 2 and the circuit breaker 3.

[0022] During the energy storage and release process of the energy storage spring 82, in addition to opening and closing the disconnector 2, the circuit breaker 3 is also synchronously linked through the circuit breaker linkage mechanism 9. The second connecting rod 921 transmission machine is composed of a second connecting rod 921, a pull rod A922, a positioning rod A923 and a push rod A924. Figure 5, the upper end of the pull rod A922 is rotatably connected to the second connecting rod 921, and the lower end is rotatably connected to the middle part of the positioning rod A923. One end of the second connecting rod 921 away from the pull rod A922 is rotatably connected to the second crank arm 91 of the energy storage shaft. The lower end of the push rod A924 is rotatably connected to the middle part of the pull rod A922. The upper end of the push rod A924 is rotatably connected to the lower end of the circuit breaker insulating pull rod 6 through the guiding rotating shaft 925. A guiding groove 926 for the up-and-down sliding of the guiding rotating shaft 925 is vertically formed on the to-be-installed frame 1. When the energy storage spring 82 stores energy, the energy storage shaft 81 rotates counterclockwise, and through the second crank arm 91 of the energy storage shaft, the second connecting rod 921 and the pull rod A922 are pushed, so that the guiding rotating shaft 925 at the upper end of the push rod A924 slides upward along the guiding groove 926, and the circuit breaker insulating pull rod 6 is pushed upward to conduct electricity for the circuit breaker 3; when the energy storage spring 82 releases energy, the energy storage shaft 81 rotates clockwise, and through the second crank arm 91 of the energy storage shaft, the second connecting rod 921 and the pull rod A922 are pulled, so that the guiding rotating shaft 925 at the upper end of the push rod A924 slides downward along the guiding groove 926, and the circuit breaker insulating pull rod 6 is pulled downward to cut off the power of the circuit breaker 3.

[0023] Since in the power system, the operating sequence of the circuit breaker 3 and the disconnecting switch 2 is crucial. When powering on and closing the switch, it is necessary to first close the disconnecting switch 2 and then power on the circuit breaker 3. When cutting off the power, it is necessary to first cut off the power of the circuit breaker 3 and then close the disconnecting switch 2. Through the linkage of the anti-misoperation spring energy storage device 8 with the disconnecting switch linkage mechanism 7 and the circuit breaker linkage mechanism 9 of the present invention, when powering on and cutting off the power, the relevant sequence is strictly followed. The specific linkage process is as follows: When powering on, the electric operating mechanism 5 is electrified, driving the main shaft crank arm 72 to drive the main shaft 71 to rotate counterclockwise. At this time, the disconnecting switch crank arm 73 pushes the disconnecting switch insulating pull rod 74 to complete the closing of the disconnecting switch 2, and at the same time, the energy storage spring 82 stores energy. While the energy storage spring 82 stores energy, the energy storage shaft 81 rotates counterclockwise, and the second connecting rod transmission mechanism 92 jacks up the circuit breaker insulating pull rod 6 from bottom to top to complete the power-on of the circuit breaker 3. Since the circuit breaker 3 needs to drive the circuit breaker insulating pull rod 6 to jack up through the anti-misoperation spring energy storage device 8 and the circuit breaker linkage mechanism 9 to complete the power-on, while the disconnecting switch 2 is directly driven by the electric operating mechanism 5 to close, the closing of the disconnecting switch 2 will be prior to the power-on of the circuit breaker 3.

[0024] When a power failure occurs, the electric operating mechanism 5 is powered on for a short time to disengage the limiting rod by rotating the main shaft 71 and the energy storage shaft 81 counterclockwise slightly. After the limiting rod is disengaged, the electric operating mechanism 5 is powered off, and the energy storage spring 82 is fully released, causing the energy storage shaft 81 to rotate clockwise. The energy storage shaft 81 first pulls the second link transmission mechanism 92 to pull down the circuit breaker insulating rod 6, thus completing the power-off of the circuit breaker 3. Then, it pushes the main shaft 71 to rotate clockwise through the energy storage transmission link 83, pushing up the disconnector insulating rod 74 from bottom to top to complete the opening of the disconnector 2, and the time taken is longer than the disconnection time of the circuit breaker 3.

[0025] In addition, the present invention further includes a buffer mechanism 93, which is composed of a pressing plate 931, a buffer spring 932, a spring rod 934, and a spring seat 933. The spring seat 933 is fixed on the frame 1 to be installed. The buffer spring 932 is located between the pressing plate 931 and the spring seat 933. The upper end of the spring rod 934 is fixed on the pressing plate 931, and the lower end passes through the buffer spring 932 and the spring seat 933 and is rotatably connected to the left end of the positioning rod A923. The right end of the positioning rod A923 is rotatably connected to the frame 1 to be installed. During the energy storage and energy release process of the energy storage spring 82, the buffer mechanism 93 provides a buffer margin for the circuit breaker linkage mechanism 9. If the buffer mechanism 93 is not required, it is only necessary to fix both ends of the positioning rod A923 on the frame 1.

[0026] In addition, in order to prevent the disconnector 2 from opening earlier than the circuit breaker 3 during the opening process, the upper end of the disconnector insulating rod 74 is rotatably connected to the middle part of the blade of the disconnector 2 through a rotating shaft rod. A delay groove 75 is provided at the connection between the disconnector insulating rod 74 and the disconnector 2. The rotating shaft rod is located in the delay groove 75 and is slidably connected to the delay groove 75. When the energy storage spring 82 releases energy and drives the main shaft 71 to rotate clockwise, when the main shaft 71 drives the disconnector insulating rod 74 to move upward through the disconnector toggle 73, it will first slide upward along the delay groove 75. At this time, the disconnector 2 will not open. After the energy storage spring 82 drives the circuit breaker 3 to complete the power-off, the disconnector insulating rod 74 will then slide to the top of the delay groove 75 and push the blade of the disconnector 2 to open.

[0027] The present invention also includes a rack 1 to be installed, wherein the rack 1 adopts a double-column steel structure frame and is arranged in two layers. All mechanisms and switches are fixed on the double-column metal structure, and the integrated switch structure ensures firmness and mechanical reliability. At the same time, the circuit breaker 3 and the isolating switch 2 are arranged in an integrated manner, which occupies a small space. The rack 1 is provided with an isolating switch 2, a circuit breaker 3, a current transformer 4, an anti-misoperation spring energy storage device 8, an isolating switch linkage mechanism 7 and a circuit breaker linkage mechanism 9. The circuit breaker 3 and the isolating switch 2 are both designed on the same rack 1 and are arranged in an integrated manner, thereby achieving spatial optimization, reducing the floor space by more than 40% compared with the traditional discrete layout, and making the layout in the substation more flexible. It is more convenient to maintain them together, which effectively improves the efficiency of inspection and maintenance work.

[0028] It also includes an electric operating mechanism 5, a driving crank arm 51 and a transmission rod 52. The electric operating mechanism 5 controls the rotation of the driving crank arm 51 and is connected to the main shaft crank arm 72 through a transmission connecting rod. The main shaft 71 is linked with the disconnector linkage mechanism 7 and the circuit breaker linkage mechanism 9 through an anti-misoperation spring energy storage device 8. The disconnector 2 is switched through the disconnector insulating pull rod 74 of the disconnector 2, and the circuit breaker insulating pull rod 6 of the circuit breaker 3 driven by the circuit breaker linkage mechanism 9 moves up and down.

[0029] The large shed structure on the top of the support insulator of the disconnector 2 can improve the anti-pollution capability and insulation level of the disconnector 2.

[0030] The above is a detailed introduction to an anti-error outdoor high-voltage combined electrical device for electrified railways provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scopes, and changes and improvements to the present invention will be possible without exceeding the concept and scope specified in the appended claims. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An outdoor high-voltage combined electrical device for preventing errors in electrified railways, characterized in that: It includes a spring energy storage device to prevent misoperation, a disconnector linkage mechanism and a circuit breaker linkage mechanism. The disconnector linkage mechanism is composed of a main shaft, a main shaft crank arm, an isolating switch insulating pull rod and an isolating switch crank arm, wherein the main shaft crank arm and the isolating switch crank arm are both fixed on the main shaft, and the isolating switch crank arm is connected to the isolating switch through the isolating switch insulating pull rod; The anti-misoperation spring energy storage device is composed of an energy storage shaft, an energy storage spring, and an energy storage transmission connecting rod. The energy storage transmission connecting rod is composed of a transmission crank arm, a push rod, a rotating rod and an energy storage crank arm that are rotatably connected in sequence. The transmission crank arm is fixed on the main shaft, and the energy storage crank arm is fixed on the energy storage shaft. The anti-misoperation spring energy storage device is also provided with an energy storage limit mechanism for preventing the energy storage shaft from rotating by mistake after the energy storage spring stores energy, and a switch-on and switch-off trigger mechanism for tripping the energy storage limit mechanism. The circuit breaker linkage mechanism consists of a second crank arm of the energy storage shaft and a second connecting rod transmission mechanism. The second crank arm of the energy storage shaft is fixed on the energy storage shaft, and drives the circuit breaker insulating pull rod of the circuit breaker to move up and down through the second connecting rod transmission mechanism.

2. The anti-error outdoor high-voltage combined electrical device for electrified railways according to claim 1, characterized in that: The energy storage limiting mechanism is composed of a limiting rod, an initial limiting hook and an energy storage limiting hook. The limiting rod is installed on the pushing rod and is close to the rotational connection between the pushing rod and the rotating rod. The initial limiting hook limits the position of the pushing rod before energy storage through the limiting rod, and the energy storage limiting hook limits the position of the pushing rod after energy storage.

3. The anti-error outdoor high-voltage combined electrical device for electrified railway according to claim 2, characterized in that: The initial limit hook and the energy storage limit hook are both fixed on the rack to be installed.

4. The anti-error outdoor high-voltage combined electrical device for electrified railway according to claim 2, characterized in that: The opening and closing trigger mechanism consists of a first crank arm of the energy storage shaft, a limit movable rotating arm, a rotating shaft, a trigger rod, a trigger hook rod and a first connecting rod. The first crank arm of the energy storage shaft is fixed on the energy storage shaft, and the first crank arm of the energy storage shaft is rotatably connected to the rotating shaft through the limit movable rotating arm. The trigger rod is fixed to the middle part of the limit movable rotating arm, and the middle part of the trigger hook rod is rotatably connected to the rotating shaft. The right end of the trigger hook rod is transmission-connected to the main shaft through the first connecting rod, and the left end of the trigger hook rod is located above the trigger rod. The trigger hook rod rotates to toggle the trigger rod to rotate the energy storage shaft, thereby disengaging the limit rod from the energy storage limit hook.

5. The anti-error outdoor high-voltage combined electrical device for electrified railway according to claim 1, characterized in that: The second connecting rod transmission mechanism is composed of a second connecting rod, a pull rod A, a positioning rod A and a push rod A. The upper end of the pull rod A is rotatably connected to the second connecting rod, and the lower end is rotatably connected to the middle part of the positioning rod A. The lower end of the push rod A is rotatably connected to the middle part of the pull rod A. The upper end of the push rod A is rotatably connected to the lower end of the insulating pull rod of the circuit breaker through a guide shaft. A guide groove is vertically opened on the frame to be installed to facilitate the guide shaft to slide up and down.

6. The anti-error outdoor high-voltage combined electrical device for electrified railways according to claim 5, characterized in that: It also includes a buffer mechanism, which consists of a pressure plate, a buffer spring, a spring rod and a spring seat. The spring seat is fixed on the frame to be installed. The buffer spring is located between the pressure plate and the spring seat. The upper end of the spring rod is fixed on the pressure plate, and the lower end passes through the buffer spring and the spring seat and is rotatably connected to the left end of the positioning rod A. The right end of the positioning rod A is rotatably connected to the frame to be installed.

7. The anti-error outdoor high-voltage combined electrical device for electrified railway according to claim 1, characterized in that: It also includes a rack to be installed, which adopts a double-column steel structure frame and is equipped with an isolating switch, a circuit breaker, a current transformer, an anti-misoperation spring energy storage device, an isolating switch linkage mechanism and a circuit breaker linkage mechanism.

8. The anti-error outdoor high-voltage combined electrical device for electrified railway according to claim 7, characterized in that: It also includes an electric operating mechanism, a driving crank arm and a transmission rod. The electric operating mechanism controls the rotation of the driving crank arm and is connected to the main shaft crank arm through a transmission connecting rod.

9. The anti-error outdoor high-voltage combined electrical device for electrified railway according to claim 1, characterized in that: The upper end of the isolating switch insulating pull rod is rotatably connected to the middle part of the switch blade of the isolating switch through a rotating shaft rod. A delay groove is provided at the connection between the isolating switch insulating pull rod and the isolating switch. The rotating shaft rod is located in the delay groove and is slidably connected to the delay groove.

10. The anti-error outdoor high-voltage combined electrical device for electrified railway according to claim 1, characterized in that: The disconnector has a large shed structure at the top of the support insulator.

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