Circuit breaker isolating switch of primary and secondary fusion ring main unit
By designing an isolating switch system including a switch mechanism, an installation mechanism and a drive mechanism, the problem of difficulty in closing the isolation switch of the first and second fusion ring cage box circuit breaker after long-term use is solved, and fast and stable circuit connection and disconnection are achieved, improving the stability and safety of the equipment.
Patent Information
- Application Number
- CN202510368978.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-06-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
After long-term use, the circuit breaker isolation switch of the primary and secondary fusion ring cage is prone to difficulty in closing due to minor changes in the switch tool, which affects the closing efficiency.
An isolating switch system including a switch mechanism, an installation mechanism and a drive mechanism is designed to achieve rapid and stable circuit connection and disconnection through the coordinated work of the installation components, the hindering components, the energized components and the pressure components.
The slide rail design replaces the traditional closing method, which increases the contact surface of the current, avoids the difficulty of closing after long-term use, and ensures that the arc does not splash, improving the stability and safety of the equipment.
Smart Images

Figure CN120149099A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of circuit breaker disconnectors, and specifically to a circuit breaker disconnector for a primary-secondary integrated ring main unit. Background Art
[0002] A primary-secondary integrated ring main unit is a set of power transmission and distribution electrical equipment (high-voltage switchgear) installed in a metal or non-metal insulated cabinet or made into a prefabricated sectionalized ring main power supply unit. The ring main unit usually includes a box body and a box door. Its core part uses a load switch and a fuse, and has the advantages of simple structure, small volume, low price, and can improve power supply parameters, performance and power supply safety. It is widely used in distribution substations in load centers such as urban residential areas, high-rise buildings, large public buildings and industrial enterprises.
[0003] Among them, the disconnector of the circuit breaker of the primary-secondary integrated ring main unit mostly adopts a conventional closing design, that is, through the physical contact between metals to achieve power on and off. However, the disconnector of the circuit breaker of the primary-secondary integrated ring main unit mostly adopts a multi-in-one design, which results in difficulties in closing during actual closing due to the subtle changes of the knife switch after long-term use of the equipment, affecting the closing efficiency. In view of the above problems, the following solutions are proposed. Summary of the Invention
[0004] To solve the above technical problems, the present invention provides a circuit breaker disconnector for a primary-secondary integrated ring main unit, including a switch mechanism. An installation component is arranged inside the switch mechanism. An obstruction component is fixedly installed on the side wall of the installation component. The installation component will receive external power and transmit it;
[0005] An installation mechanism is slidably installed on the inner wall of the installation component for connecting with external power and transmitting it to the installation component; and
[0006] A driving mechanism is installed on the inner wall of the installation component for controlling the connection and disconnection of the power between the installation mechanism and the installation component;
[0007] Among them, before use, first connect the external power to the installation mechanism, and through the driving mechanism, force the installation mechanism to slide along the inner wall of the installation component to make a circuit connection.
[0008] Preferably, a base is arranged inside the switch mechanism, and a sliding box is fixedly connected to the side wall of the base. The switch mechanism includes:
[0009] An installation component, the side wall of the installation component is fixedly arranged with the side wall of the base, providing an installation space for subsequent components and providing conditions for the power connection process;
[0010] The blocking component is slidably arranged on the inner wall of the installation component, restricting the sliding speed of the installation mechanism and accelerating the closing speed.
[0011] Among them, when the installation mechanism slides on the inner wall of the installation component, the blocking component will restrict the sliding speed of the installation mechanism moving up and down.
[0012] Preferably, the installation mechanism includes:
[0013] The energizing component is slidably arranged on the inner wall of the sliding box through a sliding member, for cutting off or connecting the power supply of the installation component;
[0014] The sliding member includes an installation box slidably connected to the inner wall of the sliding box, and an electricity output block is fixedly connected to the side wall of the installation box;
[0015] The limiting component is fixedly arranged on the inner wall of the installation box through a fixing member, preventing looseness between the energizing component and the installation component after connecting the power supply, which affects the power connection effect of the device;
[0016] The fixing member includes a first slide rail fixedly connected to the inner wall of the installation box. A U-shaped plate is slidably connected to the inner wall of the first slide rail. The outward-sliding U-shaped plate carries the limiting component to extend outward, restricting the movement of the installation box and avoiding looseness of the installation box after docking;
[0017] Among them, when the installation box drives the electricity output block to slide upward along the inner wall of the sliding box, the outer wall of the electricity output block will contact the inner wall of the installation component to complete the power transmission of the device.
[0018] Preferably, the installation mechanism further includes:
[0019] The supporting component is fixedly arranged on the inner wall of the installation box through a supporting member, providing power for the movement of the limiting component;
[0020] The supporting member includes an arc-shaped fixing rod fixedly connected to the side wall of the U-shaped plate, and a third spring is fixedly connected to the end of the arc-shaped fixing rod away from the U-shaped plate;
[0021] Among them, the third spring provides a restoring force for the arc-shaped fixing rod and the U-shaped plate to slide along the inner wall of the first slide rail.
[0022] Preferably, the driving mechanism includes:
[0023] The steering component is fixedly arranged on the inner wall of the installation box through a rotating member, providing power for the movement of the arc-shaped fixing rod;
[0024] The rotating member includes a fixing plate fixedly connected to the inner wall of the installation box. A fixing square block is fixedly connected to the inner wall of the fixing plate. A steering column is rotatably connected to the inner wall of the through hole of the fixing square block, and a driving frame is fixedly connected to the outer wall of the steering column;
[0025] The pressure - applying component is fixedly arranged on the side wall of the driving frame through a pressure - applying piece. When it is necessary to disconnect the power connection, the staff uses an insulating rod to hook the contact plate, forcing the contact plate to tilt downward. At this time, the downward - tilted contact plate will drive the driving frame to rotate around the steering column, forcing the driving frame to drive the first sliding plate to tilt upward. The upward - tilted first sliding plate will drive the sliding frame and the roller away from the outer wall of the arc - shaped fixed rod. At this time, the pressure on the side wall of the arc - shaped fixed rod disappears, enabling the third spring to drive the arc - shaped fixed rod to reset. The reset arc - shaped fixed rod drives the U - shaped plate to reset synchronously. The U - shaped plate drives the arc - shaped slider away from the inclined - plane rack through the first sliding groove, releasing the restriction of the inclined - plane rack on the installation box. When the contact plate is subjected to a downward pulling force at this time, the contact plate will drive the installation box to move downward synchronously, and the power - output block will move away from the power - receiving block, completing the power - off process of the device;
[0026] The pressure - applying piece includes a fixed rod fixedly arranged on the side wall of the driving frame, and a second sliding plate is slidably connected to the inner wall of the fixed rod;
[0027] Among them, when external staff needs to turn off or turn on the power, the pushing force will act on the driving frame, causing the driving frame to swing and driving the installation mechanism at the other end to operate.
[0028] Preferably, the installation component includes an inclined - plane rack fixedly connected to the inner wall of the sliding box, a power - receiving block is fixedly connected to the inner wall of the sliding box, and a transmission line is fixedly connected to the side wall of the power - receiving block. During the rotation of the driving frame, when the ball reaches the bottom of the inclined - plane groove, the pulling force on the fourth spring reaches the maximum at this time;
[0029] The blocking component includes an L - shaped sliding plate slidably connected to the inner wall of the sliding box. A first spring is fixedly connected to the inner wall of the L - shaped sliding plate, a inclined - plane block is fixedly connected to the side wall of the first spring, a sliding groove is opened on the inner wall of the sliding box, and a second roller is rotatably connected to the inclined - plane of the inclined - plane block. The inclined - plane of the inclined - plane block will drive the corresponding second roller to squeeze the inclined - plane of the contact inclined - plate, causing the contact inclined - plate to have an upward - moving tendency;
[0030] Among them, when the installation box drives the power - output block to move towards the power - receiving block, the side wall of the power - receiving block will contact the side wall of the power - output block, completing the power - on process of the device.
[0031] Preferably, the power - on component includes a power transmission line fixedly connected to the bottom of the installation box, and two contact inclined - plates are fixedly connected to the side wall of the installation box. Using the above - mentioned characteristic that the installation box slides upward, a blocking component and a contact inclined - plate are arranged inside the device. When the installation box slides upward along the inner wall of the sliding box, the installation box will drive the contact inclined - plate to move upward synchronously along the inner wall of the sliding groove. During this process, the arc - convex position of the contact inclined - plate will contact the arc - convex position at the bottom of the inclined - plane block, presenting the state as Figure 10 in F;
[0032] The limiting component includes a first chute opened on the inner wall of the U-shaped plate. An arc-shaped slider is slidably connected to the inner wall of the first chute. A second spring is fixedly connected to the side wall of the arc-shaped slider. Since the contact angle between the inclined plane block and the contact inclined plate is relatively large, the force required for the contact inclined plate to break through the limitation of the inclined plane block increases. When the staff increases the thrust, the inclined plane block is pressed and will laterally move towards both ends, increasing the distance between the two inclined plane blocks. At this time, the first spring accumulates mechanical power. Subsequently, the contact inclined plate will break through the limitation of the inclined plane block, and the upward pushing force of the staff will directly drive the installation box and the power output block to contact the power connection block. Through the application of the above components, it is ensured that when the power output block contacts the power connection block, the contact speed between the two is fast enough to avoid the phenomenon of electric arc splash caused by too slow contact speed;
[0033] Among them, when the installation box moves upward, the side wall of the contact inclined plate will contact the inclined plane of the inclined plane block, increasing the resistance to the upward movement of the installation box. After the contact inclined plate breaks through the limitation of the inclined plane block by using the above method, at this time, the installation box will be located between the two inclined plane blocks. At this time, the first spring releases mechanical power to drive the corresponding inclined plane block to reset. At this time, the inclined plane block will drive the second roller to contact the inclined plane of the contact inclined plate. At this time, the inclined plane of the inclined plane block will drive the corresponding second roller to press the inclined plane of the contact inclined plate, causing the contact inclined plate to have an upward movement trend, increasing the contact force between the power output block and the power connection block.
[0034] Preferably, the supporting component includes a third chute opened on the inner wall of the installation box. A sliding frame is slidably connected to the inner wall of the third chute. A roller is rotatably connected to the side wall of the sliding frame. A contact rod is fixedly connected to the side wall of the sliding frame. When the installation box moves up to the highest position, the arc-shaped slider will also be completely clamped inside the inclined plane tooth bar. At this time, the plane of the arc-shaped slider will contact the plane of the inclined plane tooth bar, thereby restricting the downward sliding trend of the arc-shaped slider. Through the application of the above components, it is avoided that when the equipment completes power circulation, the contact position becomes loose, affecting the connection stability;
[0035] When the sliding frame moves, it will drive the roller to contact the arc surface of the arc surface fixed rod, forcing the arc surface fixed rod to drive the U-shaped plate to slide along the inner wall of the first slide rail.
[0036] Preferably, the steering component includes an inclined plane groove opened on the side wall of the fixed square block. A first sliding plate is slidably connected to the inner wall of the driving frame. The end of the first sliding plate away from the driving frame is rotatably connected to the inner wall of the sliding frame;
[0037] The pressure - applying component includes a fourth spring fixedly connected to the two side walls of the second sliding plate. The other end of the fourth spring is fixedly connected to the side wall of the fixed rod. A ball is rotatably connected to the end of the second sliding plate away from the fourth spring. A contact plate is fixedly connected to the end of the driving frame away from the first sliding plate. Before use, the device is installed at the required position through the base. Subsequently, the external incoming wire is connected to the transmission wire, and the outgoing wire is connected to the transmission line. When closing the switch is required, the staff uses an insulating rod to push the contact plate, forcing the contact plate to tilt upwards. Then, a further thrust is applied. The contact plate drives the installation box to slide upwards along the inner wall of the sliding box. The tilted - upwards contact plate forces the driving frame to swing downwards around the steering column. The driving frame drives the sliding frame to move downwards synchronously along the inner wall of the third chute through the first sliding plate, so that the roller contacts the side wall of the arc - shaped fixed rod and pushes the arc - shaped fixed rods at both ends and the U - shaped plate to move towards both sides along the inner wall of the first slide rail. The outward - moving U - shaped plate drives the arc - shaped slider to move outwards synchronously, so that the arc - shaped slider enters the inner wall of the inclined - surface tooth rod. When the installation box moves upwards, the arc - shaped slider is blocked and moves towards the position of the sliding frame along the inner wall of the first chute and resets again under the push of the second spring. Therefore, when the installation box drives the outgoing - electricity block to move upwards, the arc - shaped slider is always stuck in the gap position of the inclined - surface tooth rod. When the outer wall of the outgoing - electricity block contacts the outer wall of the electricity - connecting block, the circuit of the device is connected. Through the application of the above components, the traditional switch - closing method is replaced by a slide - rail design, and the current - contact surface is increased, avoiding the problem of difficult switch - closing after long - term use;
[0038] Among them, the fourth spring always generates a contraction force to ensure that the outer wall of the ball contacts the inclined surface of the inclined - surface groove. During the use of the fourth spring, it always forces the ball to closely adhere to the outer wall of the inclined - surface groove through the second sliding plate. During the rotation of the driving frame, when the ball reaches the bottom of the inclined - surface groove, the tensile force received by the fourth spring reaches the maximum at this time. At this time, whether the driving frame swings to the left or to the right, the contraction force generated by the fourth spring will accelerate the swinging speed of the driving frame. And after the swing is completed, the tensile force generated by the fourth spring will ensure that the rotation angle of the driving frame will not change again. Through the application of the above components, it is avoided that after the sliding frame pushes the arc - shaped fixed rod to move, the mechanical power generated by the compression of the third spring forces the sliding frame to displace, affecting the anti - loosening effect of the device.
[0039] Preferably, the end of the second spring away from the arc - shaped slider is fixedly connected to the inner wall of the U - shaped plate. The side wall of the inclined - surface block is slidably connected to the inner wall of the sliding groove. The other end of the first spring is fixedly connected to the side wall of the sliding box. The end of the third spring away from the arc - shaped fixed rod is fixedly connected to the inner wall of the installation box.
[0040] The present invention has the following beneficial effects:
[0041] (1) The present invention aims to solve the problem that traditional isolating switches are difficult to close after long-term use. An installation mechanism and a driving mechanism are arranged inside the device. Before use, the device is installed at the desired position through the base. Then, the external input wire is connected to the transmission line, and the output wire is connected to the transmission line. When it is necessary to close the switch, the staff pushes the contact plate with an insulating stick to force the contact plate to tilt upward, and then applies a thrust to drive the installation box to slide upward along the inner wall of the sliding box through the contact plate. The upwardly pried contact plate will force the driving frame to swing downward with the steering column as the center. The driving frame drives the sliding frame to move downward synchronously along the inner wall of the sliding groove three through the sliding plate one, so that the roller contacts the side wall of the arc-surface fixing rod, and The arc-shaped fixed rods and the U-shaped plate at both ends are pushed to move to both sides along the inner wall of the slide rail 1, and the outward-moving U-shaped plate will drive the arc-shaped slider to move outward synchronously, so that the arc-shaped slider enters the inner wall of the inclined gear rod. When the installation box moves upward, the arc-shaped slider is blocked and moves along the inner wall of the slide groove 1 toward the position of the sliding frame, and is reset again under the push of spring 2. Therefore, when the installation box drives the power output block to move upward, the arc-shaped slider is always stuck in the gap position of the inclined gear rod, and when the outer wall of the power output block contacts the outer wall of the power receiving block, the circuit connection of the equipment is completed. Through the application of the above components, the slide rail design replaces the traditional closing method, and the contact surface of the current is increased, so as to avoid the problem of difficulty in closing after long-term use.
[0042] (2) The present invention utilizes the characteristic that the installation box slides upward, and an obstruction component and a contact inclined plate are arranged inside the device. When the installation box slides upward along the inner wall of the sliding box, the installation box will drive the contact inclined plate to move upward along the inner wall of the sliding groove synchronously. During this process, the arc-shaped convex position of the contact inclined plate will contact the arc-shaped convex position at the bottom of the inclined block, presenting a Figure 10 The state of middle F, and at this time, due to the large contact angle between the inclined plane block and the contact inclined plate, the force required for the contact inclined plate to break through the limit of the inclined plane block increases. When the staff increases the thrust, the inclined plane block will be pressed and move horizontally to both ends, increasing the distance between the two inclined plane blocks. At this time, the spring accumulates mechanical power, and then the contact inclined plate will break through the limit of the inclined plane block. The upward pushing force of the staff will directly drive the installation box and the power output block to contact with the power receiving block. Through the application of the above components, it is ensured that when the power output block and the power receiving block are in contact, the contact speed of the two is fast enough to avoid the contact speed being too slow and the phenomenon of arc splashing.
[0043] (3) After the contact inclined plate of the present invention breaks through the restriction of the inclined plane block, at this time, the installation box will be located between the two inclined plane blocks. At this time, the first spring releases mechanical power to drive the corresponding inclined plane block to reset. At this time, the inclined plane block will drive the second roller to contact the inclined plane of the contact inclined plate. At this time, the inclined plane of the inclined plane block will drive the corresponding second roller to squeeze the inclined plane of the contact inclined plate, causing the contact inclined plate to have an upward movement trend, increasing the contact force between the power output block and the power connection block; in addition, when the installation box moves up to the highest position, the arc-shaped slider will also be completely clamped inside the inclined plane tooth bar. At this time, the plane of the arc-shaped slider will contact the plane of the inclined plane tooth bar, thereby restricting the downward sliding trend of the arc-shaped slider. Through the application of the above components, it is avoided that when the device completes power circulation, the contact position becomes loose, affecting the connection stability.
[0044] (4) When the present invention needs to disconnect the power connection, the staff uses an insulating rod to hook the contact plate, forcing the contact plate to tilt downward. At this time, the downward-tilted contact plate will drive the driving frame to rotate around the steering column, forcing the driving frame to drive the first sliding plate to tilt upward. The upward-tilted first sliding plate will drive the sliding frame and the roller away from the outer wall of the arc-shaped fixed rod. At this time, the pressure on the side wall of the arc-shaped fixed rod disappears, causing the third spring to drive the arc-shaped fixed rod to reset. The reset arc-shaped fixed rod drives the U-shaped plate to reset synchronously. The U-shaped plate drives the arc-shaped slider away from the inclined plane tooth bar through the first chute, releasing the restriction of the inclined plane tooth bar on the installation box. At this time, when the contact plate is subjected to a downward pulling force, the contact plate will drive the installation box to move downward synchronously, and the power output block will move away from the power connection block, completing the power-off process of the device; in addition, during the use of the fourth spring, the fourth spring always forces the ball to closely adhere to the outer wall of the inclined plane groove through the second sliding plate. During the rotation of the driving frame, when the ball reaches the bottom of the inclined plane groove, the pulling force on the fourth spring reaches the maximum at this time. At this time, whether the driving frame swings to the left or to the right, the contraction force generated by the fourth spring will accelerate the swinging speed of the driving frame, and after the swinging is completed, the pulling force generated by the fourth spring will ensure that the rotation angle of the driving frame will not change again. Through the application of the above components, it is avoided that after the sliding frame pushes the arc-shaped fixed rod to move, the mechanical power generated by the compression of the third spring forces the sliding frame to displace, affecting the anti-loosening effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0046] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;
[0047] Figure 2Schematic diagram of the overall structure of the present invention;
[0048] Figure 3 Schematic diagram of the installation component of the present invention;
[0049] Figure 4 Schematic cross-sectional view of the installation component of the present invention;
[0050] Figure 5 Schematic cross-sectional view of the power-on component of the present invention;
[0051] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of A in;
[0052] Figure 7 Schematic cross-sectional view of the pressing component of the present invention;
[0053] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of B in;
[0054] Figure 9 Schematic diagram of the pressing component of the present invention;
[0055] Figure 10 Schematic diagram of the working state of the blocking component of the present invention.
[0056] In the drawings, the list of components represented by each reference numeral is as follows:
[0057] In the figure: 1, switch mechanism; 11, installation component; 12, blocking component; 13, base; 111, sliding box; 112, inclined surface tooth bar; 113, power connection block; 114, transmission line; 121, L-shaped sliding plate; 122, spring one; 123, inclined surface block; 124, sliding groove; 2, installation mechanism; 21, power-on component; 22, limiting component; 23, support component; 211, installation box; 212, power output block; 213, power transmission line; 214, contact inclined plate; 125, roller two; 221, slide rail one; 222, U-shaped plate; 223, slide groove one; 224, arc-shaped slider; 225, spring two; 231, arc-shaped fixing rod; 232, spring three; 233, slide groove three; 234, sliding frame; 235, roller; 236, contact rod; 3, driving mechanism; 31, steering component; 32, pressing component; 311, fixing plate; 312, fixed square block; 313, inclined surface groove; 314, steering column; 315, driving frame; 316, sliding plate one; 321, fixing rod; 322, sliding plate two; 323, spring four; 324, ball; 325, contact plate. Detailed implementation manners
[0058] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0059] Example 1. Please refer to Figure 1 - Figure 9 In this invention, it is a circuit breaker disconnector for a primary-secondary integrated ring main unit box, including a switch mechanism 1. An installation component 11 is arranged inside the switch mechanism 1. An obstruction component 12 is fixedly installed on the side wall of the installation component 11. The installation component 11 will receive external power and transmit it.
[0060] An installation mechanism 2 is slidably installed on the inner wall of the installation component 11, used to connect with external power and transmit it to the installation component 11; and
[0061] A driving mechanism 3 is installed on the inner wall of the installation component 11, used to control the connection and disconnection of the power between the installation mechanism 2 and the installation component 11;
[0062] Among them, before use, first connect the external power to the installation mechanism 2, and through the driving mechanism 3, force the installation mechanism 2 to slide along the inner wall of the installation component 11 to make a circuit connection.
[0063] A base 13 is arranged inside the switch mechanism 1. A sliding box 111 is fixedly connected to the side wall of the base 13. The switch mechanism 1 includes:
[0064] An installation component 11, the side wall of the installation component 11 is fixedly arranged with the side wall of the base 13, providing an installation space for subsequent components;
[0065] An obstruction component 12, the outer wall of the obstruction component 12 is slidably arranged with the inner wall of the installation component 11, restricting the sliding speed of the installation mechanism 2;
[0066] Among them, when the installation mechanism 2 slides on the inner wall of the installation component 11, the obstruction component 12 will restrict the sliding speed of the installation mechanism 2 up and down.
[0067] The installation mechanism 2 includes:
[0068] An energizing component 21, the energizing component 21 is slidably arranged on the inner wall of the sliding box 111 through a sliding member, for cutting off or connecting the power supply of the installation component 11;
[0069] The sliding member includes an installation box 211 slidably connected to the inner wall of the sliding box 111, and an electricity output block 212 is fixedly connected to the side wall of the installation box 211;
[0070] The limiting component 22 is fixedly arranged on the inner wall of the installation box 211 through a fixing member to prevent loosening between the energized component 21 and the installation component 11 after connecting the power supply.
[0071] The fixing member includes a first slide rail 221 fixedly connected to the inner wall of the installation box 211. A U-shaped plate 222 is slidably connected to the inner wall of the first slide rail 221. The outward-sliding U-shaped plate 222 extends the limiting component 22 outward to limit the movement of the installation box 211.
[0072] Among them, when the installation box 211 drives the power output block 212 to slide upward along the inner wall of the sliding box 111, the outer wall of the power output block 212 will contact the inner wall of the installation component 11 to complete the power transmission of the device.
[0073] The installation mechanism 2 further includes:
[0074] A support component 23 is fixedly arranged on the inner wall of the installation box 211 through a support member to provide power for the movement of the limiting component 22.
[0075] The support member includes an arc-shaped fixing rod 231 fixedly connected to the side wall of the U-shaped plate 222. One end of the arc-shaped fixing rod 231 away from the U-shaped plate 222 is fixedly connected to a third spring 232.
[0076] Among them, the third spring 232 provides a restoring force for the arc-shaped fixing rod 231 and the U-shaped plate 222 to slide along the inner wall of the first slide rail 221.
[0077] The driving mechanism 3 includes:
[0078] A steering component 31 is fixedly arranged on the inner wall of the installation box 211 through a rotating member to provide power for the movement of the arc-shaped fixing rod 231.
[0079] The rotating member includes a fixing plate 311 fixedly connected to the inner wall of the installation box 211. A fixing square block 312 is fixedly connected to the inner wall of the fixing plate 311. A steering column 314 is rotatably connected to the inner wall of the through hole of the fixing square block 312. A driving frame 315 is fixedly connected to the outer wall of the steering column 314.
[0080] The pressure - applying component 32 is fixedly arranged on the side wall of the driving frame 315 through a pressure - applying member. When it is necessary to disconnect the power connection, the staff uses an insulating rod to hook the contact plate 325, forcing the contact plate 325 to tilt downward. At this time, the downward - tilted contact plate 325 will drive the driving frame 315 to rotate around the steering column 314, forcing the driving frame 315 to drive the first sliding plate 316 to tilt upward. The upward - tilted first sliding plate 316 will drive the sliding frame 234 and the roller 235 away from the outer wall of the arc - shaped fixed rod 231. At this time, the pressure on the side wall of the arc - shaped fixed rod 231 disappears, enabling the third spring 232 to drive the arc - shaped fixed rod 231 to reset. The reset arc - shaped fixed rod 231 drives the U - shaped plate 222 to reset synchronously. The U - shaped plate 222 drives the arc - shaped slider 224 away from the inclined - surface rack 112 through the first sliding groove 223, releasing the restriction of the inclined - surface rack 112 on the installation box 211. At this time, when the contact plate 325 is subjected to a downward pulling force, the contact plate 325 will drive the installation box 211 to move downward synchronously, and the power - output block 212 will move away from the power - receiving block 113, completing the power - off process of the device;
[0081] The pressure - applying member includes a fixed rod 321 fixedly arranged on the side wall of the driving frame 315. A second sliding plate 322 is slidably connected to the inner wall of the fixed rod 321;
[0082] Among them, when an external staff member needs to turn off or turn on the power, the pushing force will act on the driving frame 315, causing the driving frame 315 to swing and driving the installation mechanism 2 at the other end to operate.
[0083] Embodiment 2, please refer to Figure 3 - Figure 10 This invention is a circuit breaker disconnector for a primary - secondary integrated ring - main unit box. On the basis of Example 1, the installation component 11 includes an inclined - surface rack 112 fixedly connected to the inner wall of the sliding box 111. A power - receiving block 113 is fixedly connected to the inner wall of the sliding box 111. A transmission line 114 is fixedly connected to the side wall of the power - receiving block 113. During the rotation of the driving frame 315, when the ball 324 reaches the bottom of the inclined - surface groove 313, the pulling force on the fourth spring 323 reaches the maximum at this time;
[0084] The blocking component 12 includes an L - shaped sliding plate 121 slidably connected to the inner wall of the sliding box 111. A first spring 122 is fixedly connected to the inner wall of the L - shaped sliding plate 121. An inclined - surface block 123 is fixedly connected to the side wall of the first spring 122. A sliding groove 124 is formed in the inner wall of the sliding box 111. A second roller 125 is rotatably connected to the inclined surface of the inclined - surface block 123. The inclined surface of the inclined - surface block 123 will drive the corresponding second roller 125 to squeeze the inclined surface of the contact inclined plate 214, causing the contact inclined plate 214 to have an upward - moving tendency;
[0085] When the power output block 212 carried by the installation box 211 moves towards the power connection block 113, the side wall of the power connection block 113 will contact the side wall of the power output block 212 to complete the power-on process of the device.
[0086] The power-on assembly 21 includes a power transmission line 213 fixedly connected to the bottom of the installation box 211, and two contact inclined plates 214 are fixedly connected to the side wall of the installation box 211. Taking advantage of the upward sliding characteristic of the installation box 211 above, a blocking assembly 12 and the contact inclined plates 214 are arranged inside the device. When the installation box 211 slides upward along the inner wall of the sliding box 111, the installation box 211 will drive the contact inclined plates 214 to move upward synchronously along the inner wall of the sliding groove 124. During this process, the arc convex position of the contact inclined plate 214 will contact the arc convex position at the bottom of the inclined plane block 123, presenting a state as Figure 10 shown in F in the figure;
[0087] The limiting assembly 22 includes a first sliding groove 223 opened on the inner wall of the U-shaped plate 222. An arc-shaped sliding block 224 is slidably connected to the inner wall of the first sliding groove 223. A second spring 225 is fixedly connected to the side wall of the arc-shaped sliding block 224. Since the contact angle between the inclined plane block 123 and the contact inclined plate 214 is relatively large, the force required for the contact inclined plate 214 to break through the restriction of the inclined plane block 123 increases. When the staff increases the thrust, the inclined plane block 123 is pressed and will move horizontally towards both ends, increasing the distance between the two inclined plane blocks 123. At this time, the first spring 122 accumulates mechanical power. Subsequently, the contact inclined plate 214 will break through the restriction of the inclined plane block 123, and the upward pushing force of the staff will directly drive the installation box 211, as well as the power output block 212 to contact the power connection block 113. Through the application of the above components, it is ensured that when the power output block 212 contacts the power connection block 113, the contact speed between the two is fast enough to avoid the phenomenon of arc splash caused by too slow contact speed;
[0088] Among them, when the installation box 211 moves upward, the side wall of the contact inclined plate 214 will contact the inclined plane of the inclined plane block 123, increasing the resistance to the upward movement of the installation box 211. After the contact inclined plate 214 breaks through the restriction of the inclined plane block 123 as described above, at this time, the installation box 211 will be located between the two inclined plane blocks 123. At this time, the first spring 122 releases mechanical power to drive the corresponding inclined plane block 123 to reset. At this time, the inclined plane block 123 will drive the second roller 125 to contact the inclined plane of the contact inclined plate 214. At this time, the inclined plane of the inclined plane block 123 will drive the corresponding second roller 125 to press the inclined plane of the contact inclined plate 214, causing the contact inclined plate 214 to have an upward movement trend and increasing the contact force between the power output block 212 and the power connection block 113.
[0089] The support component 23 includes a third chute 233 opened on the inner wall of the installation box 211. A sliding frame 234 is slidably connected to the inner wall of the third chute 233. A roller 235 is rotatably connected to the side wall of the sliding frame 234. A contact rod 236 is fixedly connected to the side wall of the sliding frame 234. When the installation box 211 moves up to the highest position, the arc-shaped slider 224 will also be completely clamped inside the inclined surface tooth bar 112. At this time, the plane of the arc-shaped slider 224 will contact the plane of the inclined surface tooth bar 112, thereby restricting the downward sliding tendency of the arc-shaped slider 224. Through the application of the above components, it is avoided that the contact position becomes loose after the equipment completes the power circulation, affecting the connection stability;
[0090] When the sliding frame 234 moves, it will drive the roller 235 to contact the arc surface of the arc surface fixing rod 231, forcing the arc surface fixing rod 231 to drive the U-shaped plate 222 to slide along the inner wall of the first slide rail 221.
[0091] The steering component 31 includes an inclined surface groove 313 opened on the side wall of the fixed square 312. A first sliding plate 316 is slidably connected to the inner wall of the driving frame 315. One end of the first sliding plate 316 away from the driving frame 315 is rotatably connected to the inner wall of the sliding frame 234;
[0092] The pressure - applying component 32 includes a fourth spring 323 fixedly connected to the side wall of the second sliding plate 322. The other end of the fourth spring 323 is fixedly connected to the side wall of the fixed rod 321. A ball 324 is rotatably connected to the end of the second sliding plate 322 away from the fourth spring 323. A contact plate 325 is fixedly connected to the end of the driving frame 315 away from the first sliding plate 316. Before use, the device is installed at the required position through the base 13. Subsequently, the external incoming wire is connected to the power transmission line 213, and the outgoing wire is connected to the transmission line 114. When closing the switch is required, the staff uses an insulating rod to push the contact plate 325, forcing the contact plate 325 to tilt upwards. Subsequently, a further thrust is applied. The contact plate 325 drives the installation box 211 to slide upwards along the inner wall of the sliding box 111. The tilted - upwards contact plate 325 will force the driving frame 315 to swing downwards with the steering column 314 as the center. The driving frame 315 drives the sliding frame 234 to move downwards synchronously along the inner wall of the third chute 233 through the first sliding plate 316, so that the roller 235 contacts the side wall of the arc - shaped fixed rod 231, and pushes the arc - shaped fixed rods 231 at both ends and the U - shaped plate 222 to move towards both sides along the inner wall of the first slide rail 221. The outward - moving U - shaped plate 222 will drive the arc - shaped slider 224 to move outwards synchronously, so that the arc - shaped slider 224 enters the inner wall of the inclined - plane tooth bar 112. When the installation box 211 moves upwards, the arc - shaped slider 224 is blocked and moves towards the position of the sliding frame 234 along the inner wall of the first chute 223, and is reset again under the push of the second spring 225. Therefore, when the installation box 211 drives the power - output block 212 to move upwards, the arc - shaped slider 224 is always clamped at the gap position of the inclined - plane tooth bar 112, and when the outer wall of the power - output block 212 contacts the outer wall of the power - connection block 113, the circuit connection of the device is completed. Through the application of the above components, the traditional switch - closing method is replaced by a slide - rail design, and the contact surface of the circuit is increased, avoiding the problem of difficult switch - closing after long - term use;
[0093] Among them, the fourth spring 323 always generates a contraction force to ensure that the outer wall of the ball 324 contacts the inclined surface of the inclined - plane groove 313. During the use of the fourth spring 323, the second sliding plate 322 always forces the ball 324 to closely adhere to the outer wall of the inclined - plane groove 313. During the rotation of the driving frame 315, when the ball 324 reaches the bottom of the inclined - plane groove 313, the tensile force received by the fourth spring 323 reaches the maximum at this time. At this time, whether the driving frame 315 swings to the left or to the right, the contraction force generated by the fourth spring 323 will accelerate the swinging speed of the driving frame 315, and after the swinging is completed, the tensile force generated by the fourth spring 323 will ensure that the rotation angle of the driving frame 315 will not change again. Through the application of the above components, it is avoided that after the sliding frame 234 pushes the arc - shaped fixed rod 231 to move, the mechanical power generated by the compression of the third spring 232 forces the sliding frame 234 to displace, affecting the anti - loosening effect of the device.
[0094] One end of the second spring 225 away from the arc-shaped slider 224 is fixedly connected to the inner wall of the U-shaped plate 222. The side wall of the inclined plane block 123 is slidably connected to the inner wall of the sliding groove 124. The other end of the first spring 122 is fixedly connected to the side wall of the sliding box 111. One end of the third spring 232 away from the arc-shaped fixed rod 231 is fixedly connected to the inner wall of the mounting box 211.
[0095] A specific application of this embodiment is as follows: Before use, the device is installed at the required position through the base 13. Subsequently, the external incoming wire is connected to the transmission line 213, and the outgoing wire is connected to the transmission line 114. When it is necessary to switch on the switch, the staff uses an insulating rod to push the contact plate 325, forcing the contact plate 325 to tilt upward. Subsequently, a further thrust is applied. The mounting box 211 is driven by the contact plate 325 to slide upward along the inner wall of the sliding box 111. The upwardly pried contact plate 325 will force the driving frame 315 to swing downward around the steering column 314. The driving frame 315 drives the sliding frame 234 to move downward synchronously along the inner wall of the sliding groove three 233 through the first sliding plate 316, so that the roller 235 contacts the side wall of the arc-shaped fixed rod 231, and the arc-shaped fixed rods 231 at both ends and the U-shaped plate 222 are pushed to move to both sides along the inner wall of the first slide rail 221. The outwardly moved U-shaped plate 222 will drive the arc-shaped slider 224 to move outward synchronously, so that the arc-shaped slider 224 enters the inner wall of the inclined plane tooth bar 112. When the mounting box 211 moves upward, the arc-shaped slider 224 is blocked and moves along the inner wall of the first sliding groove 223 towards the position of the sliding frame 234, and is reset again under the push of the second spring 225. Therefore, when the mounting box 211 drives the power output block 212 to move upward, the arc-shaped slider 224 is always clamped at the gap position of the inclined plane tooth bar 112, and when the outer wall of the power output block 212 contacts the outer wall of the power connection block 113, the circuit of the device is connected. Through the application of the above components, the traditional switch-on method is replaced by a slide rail design, and the current contact surface is increased, avoiding the problem of difficult switch-on after long-term use.
[0096] Utilizing the characteristic that the above-mentioned mounting box 211 slides upward, a blocking component 12 and a contact inclined plate 214 are arranged inside the device. When the mounting box 211 slides upward along the inner wall of the sliding box 111, the mounting box 211 will drive the contact inclined plate 214 to move upward synchronously along the inner wall of the sliding groove 124. During this process, the arc-shaped convex position of the contact inclined plate 214 will contact the arc-shaped convex position at the bottom of the inclined plane block 123, presenting as Figure 10The state of F. At this time, due to the large contact angle between the inclined plane block 123 and the contact inclined plate 214, the force required for the contact inclined plate 214 to break through the restriction of the inclined plane block 123 increases. When the staff increases the thrust, the inclined plane block 123 is compressed and will move horizontally towards both ends, increasing the distance between the two inclined plane blocks 123. At this time, the first spring 122 accumulates mechanical power. Subsequently, the contact inclined plate 214 will break through the restriction of the inclined plane block 123, and the upward pushing force of the staff will directly drive the installation box 211 and the power output block 212 to contact the power connection block 113. Through the application of the above components, it is ensured that when the power output block 212 contacts the power connection block 113, the contact speed between the two is fast enough to avoid the phenomenon of electric arc splashing caused by too slow contact speed.
[0097] After the contact inclined plate 214 breaks through the restriction of the inclined plane block 123 by using the above method, at this time, the installation box 211 will be between the two inclined plane blocks 123. At this time, the first spring 122 releases mechanical power to drive the corresponding inclined plane block 123 to reset. At this time, the inclined plane block 123 will drive the second roller 125 to contact the inclined surface of the contact inclined plate 214. At this time, the inclined surface of the inclined plane block 123 will drive the corresponding second roller 125 to press the inclined surface of the contact inclined plate 214, causing the contact inclined plate 214 to have an upward movement trend, increasing the contact force between the power output block 212 and the power connection block 113; in addition, when the installation box 211 moves up to the highest position, the arc-shaped slider 224 will also be completely clamped inside the inclined surface tooth bar 112. At this time, the plane of the arc-shaped slider 224 will contact the plane of the inclined surface tooth bar 112, thereby restricting the downward sliding trend of the arc-shaped slider 224. Through the application of the above components, it is avoided that when the equipment completes the power flow, the contact position becomes loose, affecting the connection stability.
[0098] When it is necessary to disconnect the power connection, the staff uses an insulating rod to hook the contact plate 325, forcing the contact plate 325 to tilt downward. At this time, the downward-tilting contact plate 325 will drive the driving frame 315 to rotate around the steering column 314, forcing the driving frame 315 to drive the first sliding plate 316 to tilt upward. The upward-tilting first sliding plate 316 will drive the sliding frame 234 and the roller 235 away from the outer wall of the arc-shaped fixed rod 231. At this time, the pressure on the side wall of the arc-shaped fixed rod 231 disappears, enabling the third spring 232 to drive the arc-shaped fixed rod 231 to reset. The reset arc-shaped fixed rod 231 drives the U-shaped plate 222 to reset synchronously. The U-shaped plate 222 drives the arc-shaped slider 224 away from the inclined surface rack 112 through the first chute 223, releasing the restriction of the inclined surface rack 112 on the installation box 211. At this time, when the contact plate 325 is subjected to a downward pulling force, the contact plate 325 will drive the installation box 211 to move downward synchronously, and the power output block 212 will move away from the power connection block 113, completing the power-off process of the device; in addition, during the use of the fourth spring 323, the fourth spring 323 always forces the ball 324 to closely adhere to the outer wall of the inclined surface groove 313 through the second sliding plate 322. During the rotation of the driving frame 315, when the ball 324 reaches the bottom of the inclined surface groove 313, the pulling force on the fourth spring 323 reaches the maximum at this time. At this time, whether the driving frame 315 swings to the left or to the right, the contraction force generated by the fourth spring 323 will accelerate the swinging speed of the driving frame 315, and after the swinging is completed, the pulling force generated by the fourth spring 323 will ensure that the rotation angle of the driving frame 315 will not change again. Through the application of the above components, it is avoided that after the sliding frame 234 pushes the arc-shaped fixed rod 231 to move, the mechanical power generated by the compression of the third spring 232 forces the sliding frame 234 to displace, affecting the anti-loosening effect of the device.
[0099] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.
Claims
1. The circuit breaker isolating switch of the primary and secondary fusion ring network box is characterized by: include: A switch mechanism (1), wherein a mounting assembly (11) is disposed inside the switch mechanism (1), a blocking assembly (12) is fixedly mounted on a side wall of the mounting assembly (11), and the mounting assembly (11) receives external power and transmits it; A mounting mechanism (2), the mounting mechanism (2) being slidably mounted on the inner wall of the mounting assembly (11) and being used to connect to external power and transmit it to the mounting assembly (11); and A driving mechanism (3), the driving mechanism (3) being installed on the inner wall of the mounting assembly (11) and used for controlling the connection and disconnection of the power between the mounting mechanism (2) and the mounting assembly (11); Before use, external power is first connected to the installation mechanism (2), and the installation mechanism (2) is forced to slide along the inner wall of the installation component (11) through the driving mechanism (3) to achieve circuit connection.
2. The circuit breaker isolating switch of the primary and secondary fusion ring network box according to claim 1 is characterized in that: A base (13) is provided inside the switch mechanism (1), a sliding box (111) is fixedly connected to the side wall of the base (13), and the switch mechanism (1) comprises: An installation component (11), wherein a side wall of the installation component (11) is fixedly arranged with a side wall of the base (13) to provide an installation space for subsequent components; An obstruction component (12), wherein the outer wall of the obstruction component (12) is slidably arranged with the inner wall of the mounting component (11) to limit the sliding speed of the mounting mechanism (2); When the mounting mechanism (2) slides on the inner wall of the mounting assembly (11), the blocking assembly (12) will limit the speed at which the mounting mechanism (2) slides up and down.
3. The circuit breaker isolating switch of the primary and secondary fusion ring network box according to claim 2 is characterized in that: The mounting mechanism (2) comprises: A power supply component (21), wherein the power supply component (21) is slidably arranged on the inner wall of the sliding box (111) through a sliding member, and is used to cut off or connect the power supply of the installation component (11); The sliding member comprises a mounting box (211) slidably connected to the inner wall of the sliding box (111), and a power output block (212) is fixedly connected to the side wall of the mounting box (211); A limiting component (22), wherein the limiting component (22) is fixedly arranged on the inner wall of the installation box (211) by means of a fixing member, and after being placed and connected to a power source, looseness occurs between the power supply component (21) and the installation component (11); The fixing member comprises a slide rail (221) fixedly connected to the inner wall of the installation box (211); a U-shaped plate (222) is slidably connected to the inner wall of the slide rail (221); the U-shaped plate (222) slides outward and carries the limiting component (22) to extend outward, thereby limiting the movement of the installation box (211); When the installation box (211) drives the power output block (212) to slide upward along the inner wall of the sliding box (111), the outer wall of the power output block (212) will contact the inner wall of the installation assembly (11), completing the transmission of power to the device.
4. The circuit breaker isolating switch of the primary and secondary fusion ring network box according to claim 3 is characterized by: The mounting mechanism (2) further comprises: A support assembly (23), wherein the support assembly (23) is fixedly arranged on the inner wall of the installation box (211) through a support member, and provides power for the movement of the restriction assembly (22); The support member comprises a curved surface fixing rod (231) fixedly connected to the side wall of the U-shaped plate (222), and one end of the curved surface fixing rod (231) away from the U-shaped plate (222) is fixedly connected to a spring three (232); The spring three (232) provides a restoring force for the arc surface fixing rod (231) and the U-shaped plate (222) to slide along the inner wall of the slide rail one (221).
5. The circuit breaker isolating switch of the primary and secondary fusion ring network box according to claim 4 is characterized in that: The driving mechanism (3) comprises: A steering assembly (31), wherein the steering assembly (31) is fixedly mounted on the inner wall of the mounting box (211) via a rotating member, and provides power for the movement of the arc surface fixing rod (231); The rotating member comprises a fixing plate (311) fixedly connected to the inner wall of the installation box (211); a fixing block (312) is fixedly connected to the inner wall of the fixing plate (311); a steering column (314) is rotatably connected to the inner wall of the through hole of the fixing block (312); and a driving frame (315) is fixedly connected to the outer wall of the steering column (314); A pressure component (32), wherein the pressure component (32) is fixedly arranged on a side wall of the driving frame (315) via a pressure piece; The pressure member comprises a fixing rod (321) fixedly arranged on the side wall of the driving frame (315), and a second sliding plate (322) is slidably connected to the inner wall of the fixing rod (321); When an external worker needs to turn off or on the power supply, the pushing force will act on the driving frame (315), causing the driving frame (315) to swing, thereby driving the installation mechanism (2) at the other end to operate.
6. The circuit breaker disconnector of the primary and secondary fusion ring network box according to claim 5 is characterized in that: The mounting assembly (11) comprises a bevel gear rod (112) fixedly connected to the inner wall of the sliding box (111); a power connection block (113) is fixedly connected to the inner wall of the sliding box (111); and a transmission line (114) is fixedly connected to the side wall of the power connection block (113); The obstruction assembly (12) comprises an L-shaped slide plate (121) slidably connected to the inner wall of the sliding box (111); a spring 1 (122) is fixedly connected to the inner wall of the L-shaped slide plate (121); a slope block (123) is fixedly connected to the side wall of the spring 1 (122); a sliding groove (124) is provided on the inner wall of the sliding box (111); and a slope of the slope block (123) is rotatably connected to a roller 2 (125); When the installation box (211) carries the power output block (212) and moves toward the power connection block (113), the side wall of the power connection block (113) will contact the side wall of the power output block (212), completing the power-on process of the equipment.
7. The circuit breaker disconnector of the primary and secondary fusion ring network box according to claim 6 is characterized by: The power supply assembly (21) comprises a power transmission line (213) fixedly connected to the bottom of the installation box (211), and two contact inclined plates (214) are fixedly connected to the side wall of the installation box (211); The limiting component (22) comprises a first slide groove (223) provided on the inner wall of the U-shaped plate (222), an arc-shaped slider (224) being slidably connected to the inner wall of the first slide groove (223), and a second spring (225) being fixedly connected to the side wall of the arc-shaped slider (224); When the installation box (211) moves upward, the side wall of the contact inclined plate (214) will contact the inclined surface of the inclined surface block (123), thereby increasing the resistance to the upward movement of the installation box (211).
8. The circuit breaker isolating switch of the primary and secondary fusion ring network box according to claim 7, characterized in that: The support assembly (23) comprises a sliding groove (233) provided on the inner wall of the installation box (211); a sliding frame (234) is slidably connected to the inner wall of the sliding groove (233); a roller (235) is rotatably connected to the side wall of the sliding frame (234); and a contact rod (236) is fixedly connected to the side wall of the sliding frame (234); When the sliding frame (234) moves, it drives the roller (235) to contact the arc surface of the arc surface fixing rod (231), forcing the arc surface fixing rod (231) to drive the U-shaped plate (222) to slide along the inner wall of the slide rail (221).
9. The circuit breaker isolating switch of the primary and secondary fusion ring network box according to claim 8, characterized in that: The steering assembly (31) comprises an inclined groove (313) provided on the side wall of the fixed block (312); a sliding plate (316) is slidably connected to the inner wall of the driving frame (315); and one end of the sliding plate (316) away from the driving frame (315) is rotatably connected to the inner wall of the sliding frame (234); The pressure-applying assembly (32) comprises a spring four (323) fixedly connected to the side wall of the second sliding plate (322), the other end of the spring four (323) being fixedly connected to the side wall of the fixing rod (321), the end of the second sliding plate (322) away from the spring four (323) being rotatably connected to a ball bearing (324), and the end of the driving frame (315) away from the first sliding plate (316) being fixedly connected to a contact plate (325); The spring four (323) always generates a contraction force to ensure that the outer wall of the ball (324) contacts the inclined surface of the inclined surface groove (313).
10. The circuit breaker isolating switch of the primary and secondary fusion ring network box according to claim 9, characterized in that: One end of the spring 2 (225) away from the arc-shaped slider (224) is fixedly connected to the inner wall of the U-shaped plate (222), the side wall of the inclined block (123) is slidably connected to the inner wall of the sliding groove (124), the other end of the spring 1 (122) is fixedly connected to the side wall of the sliding box (111), and one end of the spring 3 (232) away from the arc-shaped fixing rod (231) is fixedly connected to the inner wall of the installation box (211).