High-voltage dual-power mechanical interlocking mechanism

Abstract

The utility model relates to the field of switch cabinets, in particular to a high-voltage dual-power mechanical interlocking mechanism. Comprising a main switch cabinet and an auxiliary switch cabinet, and the main switch cabinet and the auxiliary switch cabinet comprise cabinet body circuit breakers; each circuit breaker comprises a chassis truck and a circuit breaker main body fixedly mounted on the chassis truck; the circuit breaker main body is fixedly provided with a circuit breaker output mechanism and an interlocking action mechanism; each circuit breaker output mechanism comprises a push plate suite, the interlocking action mechanism comprises an action support, a sliding plate, a separation blade and a tension spring, an action pin is fixedly arranged on the sliding plate, an action limiting groove is formed in the separation blade, and the action pin is inserted into the action limiting groove; each cabinet body comprises drawer plates and guide rails, and two sets of transmission mechanisms are fixedly arranged at the bottoms of the two drawer plates. The utility model provides a high-voltage dual-power mechanical interlocking mechanism which can improve safety.

Description

Technical Field

[0001] This application relates to the field of switch cabinets, and particularly to a high-voltage dual-power mechanical interlock mechanism. Background Art

[0002] The dual-power supply system of the switch cabinet is a power supply method with one main power supply and one standby power supply. In the case of a failure or power outage of the main power supply, it can be switched to the standby power supply, thereby improving the reliability and continuity of user power consumption; to ensure power safety, the two switches of the dual power supply cannot be closed simultaneously, and an electrical interlock needs to be added to the dual-power supply system. Among them, the electrical interlock can be realized through the secondary circuit, but the safety of the electrical interlock is not sufficient, and there are still potential safety hazards. Summary of the Invention

[0003] In view of this, this application provides a high-voltage dual-power mechanical interlock mechanism, which can increase safety.

[0004] To achieve the above object, this application is realized through the following technical solutions:

[0005] A high-voltage dual-power mechanical interlock mechanism, characterized in that: it includes a main switch cabinet and a secondary switch cabinet. Both the main and secondary switch cabinets include a cabinet body and a circuit breaker movably arranged relative to the cabinet body; the circuit breakers both include a chassis truck and a circuit breaker body fixedly installed on the chassis truck; a circuit breaker output mechanism and an interlock action mechanism are fixedly arranged on the circuit breaker body;

[0006] The circuit breaker output mechanisms both include a push plate kit, and the push plate kit is connected to the main shaft of the circuit breaker body. When the circuit breaker body is closed, its main shaft can drive the push plate kit to move downward, and when it is opened, the main shaft drives the push plate kit to move upward;

[0007] The interlock action mechanism includes an action bracket fixedly arranged on the circuit breaker body, a sliding plate connected to the action bracket in a vertically sliding manner, a retaining piece connected to the action bracket in a horizontally moving manner, and a tension spring connected between the sliding plate and the action bracket. The sliding plate has two states of moving up and moving down. The reverse reset force provided by the tension spring can make the sliding plate in the downward moving state. An action pin is also fixedly arranged on the sliding plate, and an action limit groove is also arranged on the retaining piece. The action pin is inserted into the action limit groove, and the action limit groove is inclined in the left-right direction, so that when the sliding plate moves up, it can push the retaining piece to extend out to one side in the left-right direction and be stuck in the closing lock position of the circuit breaker body, thereby restricting the release of the closing lock;

[0008] The cabinet bodies all include drawer boards and guide rails. The guide rails can be used to place circuit breakers. The drawer boards are arranged between the left and right guide rails. Two sets of transmission mechanisms are fixedly arranged at the bottom of the two drawer boards. One set of transmission mechanisms is transmission-connected between the circuit breaker output mechanism of the main switch cabinet and the interlocking action mechanism of the auxiliary switch cabinet, and the other set of transmission mechanisms is transmission-connected between the interlocking action mechanism of the main switch cabinet and the circuit breaker output mechanism of the auxiliary switch cabinet, so that when the push plate kit moves downward, the corresponding sliding plate can be pushed upward through the transmission mechanism.

[0009] The above-mentioned application is a high-voltage dual-power mechanical interlocking mechanism. The circuit breakers of the two switch cabinets, any one of which is in the working position and closed state, that is, when the main shaft moves downward, under the action of the mechanical interlocking, when the circuit breaker body of the other high-voltage switch cabinet is in the working position, the closing lock is stuck and cannot be closed manually or electrically; due to the addition of the mechanical interlocking structure, the interlocking requirements can be guaranteed more stably and safely.

[0010] In some embodiments, the push plate kit includes a first push plate and a second push plate fixedly connected together, the first push plate is provided with a folding groove, and the folding groove is sleeved onto the connecting shaft of the main shaft, and the circuit breaker output mechanism also includes a guide plate fixedly installed in the circuit breaker, and the guide plate is provided with a guide limit groove extending through the upper and lower parts, and the lower parts of the first push plate and the second push plate can be movably inserted into the guide limit groove.

[0011] In some embodiments, the sliding plate is provided with a vertically extending long waist hole of the skateboard, the action bracket is fixedly mounted with a guide pin that cooperates with the long waist hole of the skateboard for guidance, and the action bracket is also provided with a sliding groove that is sleeved on the outer periphery of the baffle.

[0012] In some embodiments, each transmission mechanism includes an input interlocking mechanism, an output interlocking mechanism, and a rotation transmission mechanism;

[0013] The input interlocking mechanism includes an input bracket fixedly arranged with the first drawer plate, a first rotating shaft rotatably connected to the input bracket, a first rotating plate fixedly arranged on the first rotating shaft and located below the push plate set, a second rotating shaft rotatably connected to the input bracket, a second rotating plate fixedly arranged on the second rotating shaft, and a first torsion spring sleeved on the second rotating shaft and connected between the input bracket and the second rotating shaft, the first rotating plate is provided with an input pin, the second rotating plate is provided with a rotating plate long waist hole matched with the input pin, wherein when the push plate set moves downward, it can press down the first rotating plate to rotate and drive the second rotating shaft to rotate clockwise;

[0014] The output interlocking mechanism includes an output bracket fixedly arranged with the second drawer board, a third rotating shaft rotatably connected to the output bracket, a hinge bracket fixedly connected to the third rotating shaft, an outer bracket rotatably connected to the third rotating shaft and located outside the hinge bracket, a roller rotatably mounted on the outer bracket and located below the sliding plate, a second torsion spring sleeved on the third rotating shaft and connected between the outer bracket and the third rotating shaft, and a third torsion spring sleeved on the third rotating shaft and connected between the output bracket and the third rotating shaft. A long waist hole of the bracket is arranged on the outer bracket, and an output pin that can be inserted into the long waist hole of the bracket is also fixedly arranged on the hinge bracket. When the third rotating shaft rotates clockwise, it can drive the outer bracket and the roller to tilt upward, so that the roller can push the sliding plate to move upward. A notch for facilitating the entry of the roller is arranged on the chassis vehicle, and the lower end of the sliding plate moves up and down in the notch.

[0015] The rotation transmission mechanism is used to connect the second rotating shaft of the input interlocking mechanism and the third rotating shaft of the output interlocking mechanism in series, so that the two rotating shafts can rotate synchronously.

[0016] Among them, the output interlocking mechanism has both a hinge bracket and an outer bracket. For the circuit breaker bodies of two switch cabinets, when any one of them is in the closed state at the working position, the circuit breaker body of the other high-voltage switch cabinet can be rocked in and out between the working position and the test position without affecting the effectiveness of the mechanical interlock.

[0017] In some embodiments, the rotation transmission mechanism includes a fourth rotating shaft fixedly arranged coaxially with the second rotating shaft, a fifth rotating shaft fixedly arranged coaxially with the third rotating shaft, and a sleeve connecting pipe connecting the fourth rotating shaft and the fifth rotating shaft. Two axially extending long waist holes of the sleeve are arranged on the sleeve connecting pipe. The sleeve connecting pipe is respectively sleeved on the outer circumferences of the fourth rotating shaft and the fifth rotating shaft, and two fasteners respectively inserted into the two long waist holes of the sleeve are fixedly connected to the fourth rotating shaft and the fifth rotating shaft respectively.

[0018] Among them, the fourth rotating shaft and the fifth rotating shaft are connected by a sleeve connecting pipe, so that the mechanical interlock inside the switch cabinet and the circuit breaker body can be installed and debugged in the factory. At the project site, only the sleeve connecting pipe needs to be assembled to complete the installation of the mechanical interlock. The long waist holes on the sleeve connecting pipe ensure normal installation even when there is an axial deviation.

[0019] In some embodiments, the rotational transmission mechanism includes a first connecting frame disposed beside the input bracket, a fourth rotating shaft rotatably connected to the first connecting frame, a first connecting rod structure drivingly connected between the fourth rotating shaft and the second rotating shaft, a second connecting frame disposed beside the output bracket, a fifth rotating shaft rotatably connected to the second connecting frame, a second connecting rod structure drivingly connected between the fifth rotating shaft and the third rotating shaft, and a sleeve pipe connecting the fourth rotating shaft and the fifth rotating shaft together. Two axially extending long waist holes of the sleeve are provided on the sleeve pipe. The sleeve pipe is respectively sleeved on the outer peripheries of the fourth rotating shaft and the fifth rotating shaft, and two fasteners respectively penetrating into the two long waist holes of the sleeve are fixedly connected to the fourth rotating shaft and the fifth rotating shaft respectively.

[0020] As can be seen from the above technical solutions, the present application has at least the following advantages and positive effects:

[0021] 1. For the mechanical interlock mechanism of a high-voltage dual power source of the present application, mechanical interlocks are added to the circuit breakers of two switch cabinets, which can more stably and effectively ensure the interlock requirements.

[0022] 2. The circuit breakers of both switch cabinets are in the open state at the working position. At this time, the circuit breaker of any one of the switch cabinets can be manually or electrically operated to close.

[0023] 3. For the circuit breakers of two switch cabinets, when any one of them is in the closed state at the working position, under the action of the mechanical interlock, when the circuit breaker of the other switch cabinet is at the working position, it cannot be manually or electrically operated to close.

[0024] 4. For the circuit breakers of two switch cabinets, when any one of them is in the closed state at the working position, the circuit breaker (open state) of the other switch cabinet can be rocked in and out at the working position and the test position without affecting the effectiveness of the mechanical interlock.

[0025] 5. Without modifying the mechanism and secondary circuit of the high-voltage circuit breaker, the original state and reliability of the circuit breaker are ensured.

[0026] 6. The mechanical interlocks in the circuit breakers of two switch cabinets are the same. After the two circuit breakers are interchanged, they can still meet the requirements of mutual interlock.

[0027] 7. The mechanical interlocks inside the switch cabinet and inside the circuit breaker are installed and debugged in the factory. At the project site, only the sleeve pipe between the cabinets needs to be installed after the cabinets are assembled to complete the installation of the mechanical interlock. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of an embodiment of the present application;

[0029] Figure 2 is a schematic structural diagram of the circuit breaker in an embodiment of the present application;

[0030] Figure 3 Schematic diagram of the transmission relationship of each mechanism in the embodiment of the present application;

[0031] Figure 4 Schematic diagram of the structure of the breaker output mechanism in the embodiment of the present application;

[0032] Figure 5 Exploded view of the breaker output mechanism in the embodiment of the present application;

[0033] Figure 6 Schematic diagram of the structure of the interlock action mechanism in the embodiment of the present application;

[0034] Figure 7 Exploded view of the interlock action mechanism in the embodiment of the present application;

[0035] Figure 8 Schematic diagram of the structure of the input interlock mechanism in the embodiment of the present application;

[0036] Figure 9 Schematic diagram of the structure of the output interlock mechanism in the embodiment of the present application;

[0037] Figure 10 Schematic diagram of the structure of the transmission mechanism in the embodiment of the present application Figure 1 ;

[0038] Figure 11 Schematic diagram of the structure of the transmission mechanism in the embodiment of the present application Figure 2 .

[0039] Label description: 1. Main switch cabinet; 2. Auxiliary switch cabinet; 3. Cabinet body; 31. Drawer board; 32. Guide rail; 4. Circuit breaker; 41. Chassis car; 5. Circuit breaker output mechanism; 51. Push plate kit; 511. First push plate; 5111. Flanging groove; 512. Second push plate; 52. Guide plate; 521. Guide limit groove; 6. Interlock action mechanism; 61. Action bracket; 611. Slide groove; 62. Slide plate; 621. Slide plate long waist hole; 63. Stop piece; 631. Action limit groove; 64. Tension spring; 65. Action pin; 66. Guide pin; 7. Input interlock mechanism; 71. Input bracket; 72. First rotating shaft; 73. First rotating plate; 74. Second rotating shaft; 75. Second rotating plate; 751. Rotating plate long waist hole; 76. First torsion spring; 78. Input pin; 8. Output interlock mechanism; 81. Output bracket; 82. Third rotating shaft; 83. Hinge bracket; 84. Outer bracket; 841. Bracket long waist hole; 85. Roller; 86. Second torsion spring; 87. Third torsion spring; 88. Output pin; 9. Rotating transmission mechanism; 91. Fourth rotating shaft; 92. Fifth rotating shaft; 93. Sleeve pipe; 931. Sleeve pipe long waist hole; 94. Fastener; 95. First connecting frame; 96. Second connecting frame; 97. First link structure; 98. Second link structure; 101. Main shaft; 1011. Connecting shaft; 102. Closing lockout Detailed implementation mode

[0040] In order to make the purpose, technical solutions and advantages of this application clearer, the following will further describe this application in detail with reference to the accompanying drawings. The terms used in the implementation part of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application.

[0041] Refer to Figures 1 to 11 , a high-voltage dual-power mechanical interlock mechanism, characterized in that: it includes a main switch cabinet 1 and an auxiliary switch cabinet 2, and both the main and auxiliary switch cabinets include a cabinet body 3 and a circuit breaker 4 movably arranged relative to the cabinet body 3; the circuit breakers 4 both include a chassis car 41 and a circuit breaker body fixedly installed on the chassis car 41; a circuit breaker output mechanism 5 and an interlock action mechanism 6 are fixedly arranged on the circuit breaker bodies;

[0042] The circuit breaker output mechanisms 5 both include a push plate kit 51, the push plate kit 51 is connected to the main shaft 101 of the circuit breaker body, and when the circuit breaker body closes, its main shaft 101 can drive the push plate kit 51 to move downward, and when opening, the main shaft 101 drives the push plate kit 51 to move upward;

[0043] The interlocking action mechanism 6 includes an action bracket 61 fixedly arranged on the circuit breaker body, a sliding plate 62 connected to the action bracket 61 in a manner of sliding up and down, a blocking piece 63 connected to the action bracket 61 in a manner of moving left and right, and a tension spring 64 connected between the sliding plate 62 and the action bracket 61. The sliding plate 62 has two states of upward movement and downward movement. The reverse reset force provided by the tension spring 64 can put the sliding plate 62 in a downward movement state. An action pin 65 is also fixedly arranged on the sliding plate 62, and an action limiting groove 631 is also arranged on the blocking piece 63. The action pin 65 is inserted into the action limiting groove 631, and the action limiting groove 631 is inclined in the left and right directions, so that when the sliding plate 62 moves upward, it can push the blocking piece 63 to extend to the left and right sides and snap into the closing lock 102 position of the circuit breaker body, thereby limiting the release of the closing lock;

[0044] The cabinet bodies 3 each include a drawer board 31 and a guide rail 32. The guide rail can be used to place the circuit breaker 4. The drawer board is arranged between the left and right guide rails. Two sets of transmission mechanisms are fixedly arranged at the bottom of the two drawer boards 31. One set of transmission mechanisms is transmission-connected between the circuit breaker output mechanism 5 of the main switch cabinet 1 and the interlocking action mechanism 6 of the auxiliary switch cabinet 2. The other set of transmission mechanisms is transmission-connected between the interlocking action mechanism 6 of the main switch cabinet 1 and the circuit breaker output mechanism 5 of the auxiliary switch cabinet 2, so that when the push plate kit 51 moves downward, the corresponding sliding plate 62 can be pushed upward through the transmission mechanism.

[0045] When any one of the circuit breakers of the two switch cabinets is in the working position and closed state, that is, when the main shaft 101 moves downward, under the action of the mechanical interlock, when the circuit breaker body of the other high-voltage switch cabinet is in the working position, the closing lock 102 is stuck and cannot be closed manually or electrically; due to the addition of the mechanical interlock structure, the interlocking requirements can be met more stably and safely.

[0046] In some embodiments, the push plate set 51 includes a first push plate 511 and a second push plate 512 fixedly connected together, the first push plate 511 is provided with a folding groove 5111, and the folding groove 5111 is sleeved on the connecting shaft 1011 of the main shaft 101, and the circuit breaker output mechanism 5 also includes a guide plate 52 fixedly installed in the circuit breaker 4, and the guide plate 52 is provided with a guide limit groove 521 that passes through from top to bottom, and the lower parts of the first push plate 511 and the second push plate 512 can be movably inserted into the guide limit groove 521. The first push plate 511 and the second push plate 512 can be screwed together, and the guide limit groove 521 on the guide plate 52 can limit the front, back, left, and right deviations of the first push plate 511 and the second push plate 512 during the up and down movement.

[0047] In some embodiments, a vertically extending long waist hole 621 of the sliding plate is provided on the sliding plate 62, a guide pin 66 which is matched and guided with the long waist hole 621 of the sliding plate is fixedly installed on the action bracket 61, and a chute 611 sleeved on the outer periphery of the retaining piece 63 is further provided on the action bracket 61.

[0048] In some embodiments, each set of transmission mechanisms includes an input interlock mechanism 7, an output interlock mechanism 8 and a rotation transmission mechanism 9;

[0049] The input interlock mechanism 7 includes an input bracket 71 fixedly arranged with the first drawer plate 31, a first rotating shaft 72 rotatably connected to the input bracket 71, a first rotating plate 73 fixedly arranged on the first rotating shaft 72 and located below the push plate assembly 51, a second rotating shaft 74 rotatably connected to the input bracket 71, a second rotating plate 75 fixedly arranged on the second rotating shaft 74, and a first torsion spring 76 sleeved on the second rotating shaft 74 and connected between the input bracket 71 and the second rotating shaft 74. An input pin 78 is arranged on the first rotating plate 73, and a long waist hole 751 of the rotating plate which is matched and connected with the input pin 78 is arranged on the second rotating plate 75. When the push plate assembly 51 moves downward, the first rotating plate 73 can be pressed to rotate and drive the second rotating shaft 74 to rotate clockwise;

[0050] The output interlock mechanism 8 includes an output bracket 81 fixedly arranged with the second drawer plate 31, a third rotating shaft 82 rotatably connected to the output bracket 81, a hinge bracket 83 fixedly connected to the third rotating shaft 82, an outer bracket 84 rotatably connected to the third rotating shaft 82 and located outside the hinge bracket 83, a roller 85 rotatably installed on the outer bracket 84 and located below the sliding plate 62, a second torsion spring 86 sleeved on the third rotating shaft 82 and connected between the outer bracket 84 and the third rotating shaft 82, and a third torsion spring 87 sleeved on the third rotating shaft 82 and connected between the output bracket 81 and the third rotating shaft 82. A long waist hole 841 of the bracket is arranged on the outer bracket 84, and an output pin 88 which can be inserted into the long waist hole 841 of the bracket is further fixedly arranged on the hinge bracket 83. When the third rotating shaft 82 rotates clockwise, the outer bracket 84 and the roller 85 can be driven to tilt upward, so that the roller 85 can push the sliding plate 62 to move upward; a notch for facilitating the roller 85 to enter is arranged on the chassis truck 41, and the lower end of the sliding plate 62 moves up and down in the notch;

[0051] The rotation transmission mechanism 9 is used to connect in series the second rotating shaft 74 of the input interlock mechanism 7 and the third rotating shaft 82 of the output interlock mechanism 8, so that the two rotating shafts can rotate synchronously. The second torsion spring 86 is used to make the outer bracket 84 rotate clockwise upward when no external force is applied. The output pin 88 is mainly used to drive the outer bracket 84 to reset counterclockwise when the third rotating shaft 82 rotates counterclockwise, and the third torsion spring 87 is mainly used to make the third rotating shaft 82 reset counterclockwise. The first torsion spring 76 is used to make the second rotating shaft 74 reset counterclockwise.

[0052] The output interlock mechanism 8 has both a hinge bracket 83 and an outer bracket 84. For the breaker bodies of two switch cabinets, when the breaker body of any one of them is in the closed state at the working position, the breaker body of the other high-voltage switch cabinet in the open state can be moved in and out between the working position and the test position without affecting the effectiveness of the mechanical interlock.

[0053] In some embodiments, the rotation transmission mechanism 9 includes a fourth rotating shaft 91 fixedly arranged coaxially with the second rotating shaft 74, a fifth rotating shaft 92 fixedly arranged coaxially with the third rotating shaft 82, and a sleeve 93 connecting the fourth rotating shaft 91 and the fifth rotating shaft 92. Two axially extending sleeve oblong holes 931 are provided on the sleeve 93. The sleeve 93 is respectively sleeved on the outer circumferences of the fourth rotating shaft 91 and the fifth rotating shaft 92, and two fasteners 94 respectively inserted into the two sleeve oblong holes 931 are fixedly connected to the fourth rotating shaft 91 and the fifth rotating shaft 92 respectively. The fourth rotating shaft 91 and the fifth rotating shaft 92 can be integrally formed on the second rotating shaft 74 and the third rotating shaft 82 respectively.

[0054] The fourth rotating shaft 91 and the fifth rotating shaft 92 are connected by the sleeve 93. In this way, the mechanical interlock inside the switch cabinet and inside the breaker body can be installed and debugged in the factory. Only by assembling the sleeve 93 on the project site can the installation of the mechanical interlock be completed. The oblong holes on the sleeve 93 ensure normal installation even when there is an axial deviation.

[0055] In some embodiments, the rotational transmission mechanism 9 includes a first connecting frame 95 disposed beside the input bracket 71, a fourth rotating shaft 91 rotatably connected to the first connecting frame 95, a first link structure 97 drivingly connected between the fourth rotating shaft 91 and the second rotating shaft 74, a second connecting frame 96 disposed beside the output bracket 81, a fifth rotating shaft 92 rotatably connected to the second connecting frame 96, a second link structure 98 drivingly connected between the fifth rotating shaft 92 and the third rotating shaft 82, and a sleeve 93 connecting the fourth rotating shaft 91 and the fifth rotating shaft 92 together. Two axially extending sleeve long waist holes 931 are provided on the sleeve 93. The sleeve 93 is respectively sleeved on the outer peripheries of the fourth rotating shaft 91 and the fifth rotating shaft 92, and two fasteners 94 respectively inserted into the two sleeve long waist holes 931 are fixedly connected to the fourth rotating shaft 91 and the fifth rotating shaft 92 respectively.

[0056] In some embodiments, guide rails 32 for facilitating the entry and exit of the circuit breaker 4 are respectively provided on the left and right sides of the drawer board 31.

[0057] The working process and usage method of the above-described high-voltage dual-power mechanical interlock mechanism in one of the above embodiments will be briefly described below:

[0058] Situation 1: When the two circuit breakers 4 are pushed into the cabinet body 3 and are in the working state, when the circuit breaker main body on the right side of the main switch cabinet 1 is closed, the main shaft 101 of the circuit breaker main body on the right side moves downward, thereby driving the first push plate 511 and the second push plate 512 to move downward together, thereby driving the first rotating plate 73 and the first rotating shaft 72 in the interlock input mechanism to rotate clockwise, thereby driving the second rotating plate 75, the second rotating shaft 74, the fourth rotating shaft 91, the fifth rotating shaft 92, and the sleeve 93 to rotate clockwise, thereby driving the third rotating shaft 82 and the hinge bracket 83 in the interlock output mechanism to rotate clockwise, and then the outer bracket 84 and the roller 85 rotate clockwise under the torque of the second torsion spring 86. Finally, the roller 85 tilts upward and stops at the working position. At this time, the output pin 88 is in the bracket long waist hole 841 of the outer bracket 84 and has no contact. The roller 85 drives the sliding plate 62 of the interlock action mechanism 6 in the left circuit breaker main body to move upward, thereby driving the stop piece 63 to move leftward to the closing lock 102 position of the left circuit breaker main body, so that the left circuit breaker main body cannot be closed either; the left chassis truck 41 and the circuit breaker main body thereon are moved from the working position to the test position by operating the crank. During the movement, the bottom of the chassis truck 41 presses the roller 85, forcing the outer bracket 84 to rotate counterclockwise. The left circuit breaker main body is moved from the test position to the working position by operating the crank. When the notch of the chassis truck 41 is aligned with the roller 85, at this time, the roller 85 has no downward pressure, and under the action of the second torsion spring 86, it pushes the outer bracket 84 to rotate clockwise. Finally, the roller 85 stops at the working position; then the circuit breaker main body on the right side can be opened.

[0059] Case 2:

[0060] When the circuit breaker body of the left auxiliary switch cabinet 2 is closed, the main shaft 101 of the left circuit breaker body moves downward, thereby driving the first push plate 511 and the second push plate 512 to move downward, thereby driving the first rotating plate 73 and the first rotating shaft 72 in the interlock input mechanism to rotate clockwise, thereby driving the second rotating plate 75 and the second rotating shaft 74 to rotate clockwise. The other end of the second rotating shaft 74 is connected to the first link structure 97 to drive the fourth rotating shaft 91 to rotate clockwise, and then the sleeve pipe 93 and the fifth rotating shaft 92 rotate clockwise. The other end of the fifth rotating shaft 92 is connected to the second link structure 98, thereby driving the third rotating shaft 82 and the hinge support 83 in the interlock output mechanism to rotate upward (clockwise). Furthermore, the outer support 84 and the roller 85 rotate upward (clockwise) under the action of the second torsion spring 86. Finally, the roller 85 stops at the working position. At this time, the output pin 88 is in the long waist hole 841 of the support of the outer support 84 and there is no contact. The upward movement of the roller 85 drives the sliding plate 62 of the interlock action mechanism 6 on the right side to move upward, thereby driving the stop piece 63 to move leftward to the closing lock 102 position of the left circuit breaker body, and the right circuit breaker body cannot be closed; the right circuit breaker body is moved from the working position to the test position by operating the crank. During the movement, the chassis truck 41 presses the roller 85, forcing the outer support 84 to rotate counterclockwise. The right circuit breaker body is moved from the test position to the working position by operating the crank. When the notch of the chassis truck 41 is aligned with the roller 85, at this time, the roller 85 has no downward pressure, and under the action of the second torsion spring 86, it pushes the outer support 84 to rotate clockwise. Finally, the roller 85 stops at the working position; the left circuit breaker body can be manually or electrically tripped.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and are not intended to limit them; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-voltage dual-power mechanical interlocking mechanism, characterized in that: It comprises a main switch cabinet and an auxiliary switch cabinet, each of which comprises a cabinet body and a circuit breaker arranged to move relative to the cabinet body; each of the circuit breakers comprises a chassis vehicle and a circuit breaker body fixedly mounted on the chassis vehicle; each of the circuit breaker bodies is fixedly provided with a circuit breaker output mechanism and an interlocking action mechanism; The output mechanism of the circuit breaker includes a push plate kit, which is connected to the main shaft of the circuit breaker body. When the circuit breaker body is closed, the main shaft can drive the push plate kit to move downward, and when the circuit breaker body is opened, the main shaft drives the push plate kit to move upward; The interlocking action mechanism comprises an action bracket fixedly arranged on the circuit breaker body, a sliding plate connected to the action bracket in a manner of sliding up and down, a baffle connected to the action bracket in a manner of moving left and right, and a tension spring connected between the sliding plate and the action bracket, the sliding plate has two states of upward movement and downward movement, and the reverse reset force provided by the tension spring can put the sliding plate in a downward movement state, the sliding plate is also fixedly arranged with an action pin, and the baffle is also provided with an action limiting groove, the action pin is inserted in the action limiting groove, and the action limiting groove is inclined in the left and right directions, so that when the sliding plate moves upward, it can push the baffle to extend to the left and right sides and snap into the closing lock position of the circuit breaker body, thereby limiting the release of the closing lock; The cabinet bodies all include drawer boards and guide rails. The guide rails can be used to place circuit breakers. The drawer boards are arranged between the left and right guide rails. Two sets of transmission mechanisms are fixedly arranged at the bottom of the two drawer boards. One set of transmission mechanisms is transmission-connected between the circuit breaker output mechanism of the main switch cabinet and the interlocking action mechanism of the auxiliary switch cabinet, and the other set of transmission mechanisms is transmission-connected between the interlocking action mechanism of the main switch cabinet and the circuit breaker output mechanism of the auxiliary switch cabinet, so that when the push plate kit moves downward, the corresponding sliding plate can be pushed upward through the transmission mechanism.

2. The high-voltage dual-power mechanical interlocking mechanism according to claim 1, characterized in that: The push plate kit includes a first push plate and a second push plate fixedly connected together, the first push plate is provided with a folding groove, and the folding groove is sleeved on the connecting shaft of the main shaft, the circuit breaker output mechanism also includes a guide plate fixedly installed in the circuit breaker, the guide plate is provided with a guide limit groove running through from top to bottom, and the lower parts of the first push plate and the second push plate can be movably inserted into the guide limit groove.

3. A high-voltage dual-power mechanical interlocking mechanism according to claim 1, characterized in that: The sliding plate is provided with a vertically extending long waist hole of the slide plate, the action bracket is fixedly mounted with a guide pin which cooperates with the long waist hole of the slide plate for guidance, and the action bracket is also provided with a sliding groove which is sleeved on the outer periphery of the baffle.

4. A high-voltage dual-power mechanical interlocking mechanism according to claim 1, characterized in that: Each transmission mechanism includes an input interlocking mechanism, an output interlocking mechanism and a rotation transmission mechanism; The input interlock mechanism includes an input bracket fixedly arranged with the first drawer board, a first rotating shaft rotatably connected to the input bracket, a first rotating plate fixedly arranged on the first rotating shaft and located below the push plate assembly, a second rotating shaft rotatably connected to the input bracket, a second rotating plate fixedly arranged on the second rotating shaft, and a first torsion spring sleeved on the second rotating shaft and connected between the input bracket and the second rotating shaft. An input pin is arranged on the first rotating plate, and a long waist hole of the rotating plate which is matched and connected with the input pin is arranged on the second rotating plate. When the push plate assembly moves downward, it can press down the first rotating plate to rotate and drive the second rotating shaft to rotate clockwise. The output interlock mechanism includes an output bracket fixedly arranged with the second drawer board, a third rotating shaft rotatably connected to the output bracket, a hinge bracket fixedly connected to the third rotating shaft, an outer bracket rotatably connected to the third rotating shaft and located outside the hinge bracket, a roller rotatably installed on the outer bracket and located below the sliding plate, a second torsion spring sleeved on the third rotating shaft and connected between the outer bracket and the third rotating shaft, and a third torsion spring sleeved on the third rotating shaft and connected between the output bracket and the third rotating shaft. A long waist hole of the bracket is arranged on the outer bracket, and an output pin which can be inserted into the long waist hole of the bracket is also fixedly arranged on the hinge bracket. When the third rotating shaft rotates clockwise, it can drive the outer bracket and the roller to tilt upward, so that the roller can push the sliding plate to move upward. A notch for facilitating the roller to enter is arranged on the chassis vehicle, and the lower end of the sliding plate moves up and down in the notch. The rotation transmission mechanism is used to connect the second rotating shaft of the input interlock mechanism and the third rotating shaft of the output interlock mechanism in series, so that the two rotating shafts can rotate synchronously.

5. A high-voltage dual-power mechanical interlocking mechanism according to claim 4, characterized in that: The rotation transmission mechanism includes a fourth rotating shaft fixedly arranged coaxially with the second rotating shaft, a fifth rotating shaft fixedly arranged coaxially with the third rotating shaft, and a sleeve pipe connecting the fourth rotating shaft and the fifth rotating shaft. Two axially extending long waist holes of the sleeve pipe are arranged on the sleeve pipe. The sleeve pipe is respectively sleeved on the outer circumferences of the fourth rotating shaft and the fifth rotating shaft, and two fasteners respectively inserted into the two long waist holes of the sleeve pipe are fixedly connected with the fourth rotating shaft and the fifth rotating shaft respectively.

6. The high-voltage dual-power mechanical interlocking mechanism according to claim 4, wherein: The rotation transmission mechanism includes a first connecting frame arranged beside the input bracket, a fourth rotating shaft rotatably connected to the first connecting frame, a first connecting rod structure drivingly connected between the fourth rotating shaft and the second rotating shaft, a second connecting frame arranged beside the output bracket, a fifth rotating shaft rotatably connected to the second connecting frame, a second connecting rod structure drivingly connected between the fifth rotating shaft and the third rotating shaft, and a sleeve pipe connecting the fourth rotating shaft and the fifth rotating shaft. Two axially extending long waist holes of the sleeve pipe are arranged on the sleeve pipe. The sleeve pipe is respectively sleeved on the outer circumferences of the fourth rotating shaft and the fifth rotating shaft, and two fasteners respectively inserted into the two long waist holes of the sleeve pipe are fixedly connected with the fourth rotating shaft and the fifth rotating shaft respectively.

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