Travel switch capacity increasing structure of longitudinal rotation isolation circuit breaker

Abstract

A travel switch capacity increasing structure of a longitudinal rotation isolation circuit breaker of the present invention comprises a first travel switch, a screw assembly, a sliding assembly, a mounting frame, a capacity increasing travel switch, a trigger arm and a capacity increasing support, the screw assembly is mounted on the mounting frame, the sliding assembly is slidably mounted on the screw assembly, and the capacity increasing support is fixed on the mounting frame. The capacity-increasing travel switch is fixed on the capacity-increasing support, one side of the trigger arm is connected with the trigger end of the capacity-increasing travel switch, the other end of the trigger arm extends into the sliding track of the sliding assembly, the sliding assembly comprises a first trigger part and a second trigger part, the sliding assembly slides along the screw assembly, and the longitudinal rotation isolation circuit breaker enters a working state. The first trigger part and the first travel switch are triggered, and the second trigger part synchronously triggers the capacity-increasing travel switch through the trigger arm. According to the longitudinal rotation isolation circuit breaker, the capacity of the travel switch in the working state is increased, and the longitudinal rotation isolation circuit breaker and the original travel switch can be synchronously triggered.

Description

Technical Field

[0001] The invention relates to the field of switch cabinets, in particular to a travel switch capacity-increasing structure of a longitudinal rotation isolating circuit breaker. Background Art

[0002] With the rapid development of the power system, higher requirements are placed on the safety, reliability and intelligence level of the equipment. As an important power isolation and operation equipment, the longitudinal rotation isolating circuit breaker is widely used in substations, distribution stations and rail transit fields. In order to indicate the isolation state or working state of the longitudinal rotation isolating circuit breaker, a travel switch is often set at the corresponding position to sense the isolation state or working state, and provide a control and status interface for this device and related equipment. As a key component for detecting the position state of the isolating switch, its travel switch is directly related to the operating reliability and safety of the equipment. With the construction of smart grids and the increase of automated control, the capacity of the travel switch has gradually become a bottleneck restricting the improvement of equipment performance. Especially in a complex intelligent control environment, the failure of other indirect state judgment devices such as electrical contactors that are easily increased due to insufficient travel switch capacity will affect the normal operation of the equipment and the stability of the power grid, and it is difficult to meet the needs of modern power grid systems for equipment intelligence and automation. Summary of the invention

[0003] The purpose of the present invention is to solve the above technical problems and provide a travel switch capacity increasing structure of a longitudinal rotation isolating circuit breaker. The longitudinal rotation isolating circuit breaker of the present application increases the capacity of the travel switch in the working state and can be triggered synchronously with the original travel switch.

[0004] A capacity-increasing structure for a travel switch of a longitudinally rotating isolating circuit breaker comprises a first travel switch, a screw assembly, a sliding assembly, a mounting frame, a capacity-increasing travel switch, a trigger arm and a capacity-increasing bracket, wherein the screw assembly is mounted on the mounting frame, the sliding assembly is slidably mounted on the screw assembly, the capacity-increasing bracket is fixed on the mounting frame, the capacity-increasing travel switch is fixed on the capacity-increasing bracket, one side of the trigger arm is connected to the trigger end of the capacity-increasing travel switch, and the other end extends into the sliding track of the sliding assembly, the sliding assembly comprises a first trigger part and a second trigger part, the sliding assembly slides along the screw assembly, the longitudinally rotating isolating circuit breaker enters a working state, the first trigger part is triggered with the first travel switch, and the second trigger part synchronously triggers the capacity-increasing travel switch through the trigger arm.

[0005] According to the capacity-increasing structure of the travel switch of the longitudinal rotation isolating circuit breaker of the present application, the sliding assembly can be slidably installed on the screw assembly. When the screw assembly drives the sliding assembly to move to one side, the longitudinal rotation isolating circuit breaker can be put into working state. The first travel switch is the original formed switch. By setting the first travel switch and triggering the sliding assembly when entering the working state, the longitudinal rotation isolating circuit breaker can obtain the position information of entering the working state. The capacity-increasing travel switch and the trigger arm are installed on one side of the screw assembly through the capacity-increasing bracket, and the trigger arm is extended to the sliding track of the sliding assembly, so that the sliding assembly can resist the trigger arm while triggering the first travel switch, thereby synchronously triggering the capacity-increasing travel switch. The capacity-increasing travel switch can facilitate the capacity increase, technology upgrade and intelligent transformation, and safety and reliability improvement of the power application system.

[0006] Furthermore, the capacity-increasing travel switch further comprises a fixed end, and the capacity-increasing bracket comprises an elongated mounting hole, and the mounting hole is provided for the fixed end to be adjustably mounted on the capacity-increasing bracket. The fixed end position of the capacity-increasing travel switch is adjustable, so that the installation of the capacity-increasing travel switch is more convenient, and the installed capacity-increasing travel switch can also be debugged so that it can be accurately triggered synchronously with the first travel switch.

[0007] Furthermore, a lever shaft is provided on one side of the capacity expansion bracket, the middle part of the trigger arm is rotatably sleeved on the lever shaft, one end of the trigger arm is hinged to the trigger end of the capacity expansion travel switch, and the other end of the trigger arm extends into the sliding track of the sliding component. Under the action of the fulcrum of the lever shaft, the trigger arm can push the trigger end of the capacity expansion travel switch to be triggered after being triggered by the sliding component.

[0008] Furthermore, the capacity expansion bracket is provided with an active hole, the capacity expansion travel switch is mounted on the capacity expansion bracket on the other side of the lever shaft, and the trigger arm passes through the capacity expansion bracket through the active hole. The active hole provides a movable space for the trigger arm and provides a certain support for it.

[0009] Furthermore, the capacity expansion bracket includes a transverse bracket and a vertical bracket, the vertical bracket is fixed on the transverse bracket, the transverse bracket has a first extension plate extending above the vertical bracket, and the lever shaft is installed on the vertical bracket and the first extension plate. The transverse bracket and the vertical bracket can make it easier to install the lever shaft.

[0010] Furthermore, the sliding assembly includes a slider and a first trigger piece, the slider is slidably mounted on the screw assembly, the first trigger piece is fixed on the slider, the first travel switch is arranged at one end of the sliding assembly, the first trigger part is the first trigger piece, the second trigger part is the slider, and the trigger arm is arranged on the sliding track of the slider.

[0011] Furthermore, it also includes a second travel switch, and the sliding assembly also includes a second trigger piece, the second trigger piece is fixed on the slider, and the longitudinal rotation isolating circuit breaker enters the isolation state, so that the second trigger piece triggers the second travel switch.

[0012] Furthermore, the screw assembly includes a bearing block, a guide rod, a screw and a first transmission mechanism, the bearing block is fixed on the mounting frame, the screw is rotatably mounted on the bearing block, the first transmission mechanism is connected to the screw transmission, and the guide rod is fixed on the bearing block along the direction of the screw; the sliding assembly is slidably mounted on the screw and the guide rod.

[0013] Furthermore, it also includes a second transmission mechanism, which is transmission-connected to the first transmission mechanism, and the second transmission mechanism is provided with an operating shaft.

[0014] Furthermore, it also includes an operating tool, which is connected to the operating shaft, and the operating tool drives the screw to rotate through the second transmission mechanism and the first transmission structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereoscopic view of the travel switch capacity-increasing structure of the longitudinal rotation isolating circuit breaker of the present invention.

[0016] Figure 2 It is an exploded view of the travel switch capacity-increasing structure of the longitudinal rotation isolating circuit breaker of the present invention.

[0017] Figure 3 It is an exploded view of the sliding component of the present invention.

[0018] Figure 4 It is a three-dimensional diagram of the sliding assembly of the present invention when it slides to a working state.

[0019] Figure 5 It is an exploded view of the capacity-increasing travel switch of the present invention.

[0020] Figure 6 It is a stereoscopic view of the capacity-increasing travel switch of the present invention. DETAILED DESCRIPTION

[0021] A travel switch capacity increasing structure of a longitudinal rotation isolating circuit breaker of the present invention is described in conjunction with the accompanying drawings.

[0022] like Figures 1 to 6The travel switch capacity expansion structure of a longitudinal rotation disconnecting circuit breaker shown in the figure comprises a first travel switch 1, a screw assembly 2, a sliding assembly 3, a mounting frame 4, a capacity expansion travel switch 5, a trigger arm 6 and a capacity expansion bracket 7, wherein the screw assembly 2 is mounted on the mounting frame 4, the sliding assembly 3 is slidably mounted on the screw assembly 2, the longitudinal rotation disconnecting circuit breaker comprises a working state and an isolation state, and the longitudinal rotation disconnecting circuit breaker enters a working state and an isolation state by sliding the sliding assembly 3 on the screw assembly 2 to different positions, the capacity expansion bracket 7 is fixed on the mounting frame 4, and the capacity expansion travel switch 5 is fixed on the capacity expansion bracket On the frame 7, one side of the trigger arm 6 is connected to the trigger end 52 of the capacity-increasing stroke switch 5, and the other end extends to the sliding track of the sliding component 3. The sliding component 3 includes a first trigger part and a second trigger part. When the screw assembly 2 drives the sliding component 3 to move to a certain characteristic position on one side, the longitudinal rotation isolating circuit breaker can be put into working state, the first trigger part is triggered with the first stroke switch 1, and the second trigger part synchronously triggers the capacity-increasing stroke switch 5 through the trigger arm 6. The capacity-increasing stroke switch 5 can be conveniently used to increase the capacity of the power application system, upgrade the technology and intelligentize the system, and improve safety and reliability.

[0023] like Figure 5 As shown, the capacity-enhanced travel switch 5 also includes a fixed end 52, and the capacity-enhanced bracket 7 includes an elongated mounting hole 711. The mounting hole 711 allows the fixed end 52 to be adjustably mounted on the capacity-enhanced bracket 7. The elongated mounting hole 711 allows the fixed position of the fixed end 52 of the capacity-enhanced travel switch 5 to be adjusted forward and backward along the long direction of the mounting hole 711, and the trigger end 52 of the capacity-enhanced travel switch 5 is also arranged in the long direction of the mounting hole 711. Therefore, the installed capacity-enhanced travel switch 5 can be debugged so that it can be accurately triggered synchronously with the first travel switch 1.

[0024] like Figures 4 to 6 As shown, a lever shaft 73 is provided on one side of the capacity expansion bracket 7, and the middle part of the trigger arm 6 is rotatably sleeved on the lever shaft 73, so that the trigger arm 6 can form a lever with the lever shaft 73 as a fulcrum, and one end of the trigger arm 6 is hinged to the trigger end 52 of the capacity expansion travel switch 5, and the other end of the trigger arm 6 extends into the sliding track of the sliding component 3. Therefore, when the sliding component 3 slides to conflict with the trigger arm 6, the trigger arm 6 can rotate around the lever shaft 73 to transmit the action to the trigger end 52, so that the capacity expansion travel switch 5 is triggered, as shown in FIG. Figure 5 As shown, the lever shaft 73 of the present application and the hinge shaft 53 where the trigger arm 6 and the trigger end 52 are hinged can both adopt a shaft structure formed by connecting bolts and nuts. The bolt and nut structure is simple and can be easily assembled.

[0025] like Figures 4 to 6As shown, the capacity expansion bracket 7 is provided with a movable hole 713, the capacity expansion travel switch 5 is installed on the capacity expansion bracket 7 on the other side of the lever shaft 73, and the trigger arm 6 passes through the capacity expansion bracket 7 through the movable hole 713. The movable hole 713 provides a movable space for the trigger arm 6 and provides a certain support for it. This layout structure allows the capacity expansion travel switch 5 to be installed on the other side of the sliding component 3, thereby avoiding the capacity expansion travel switch 5 interfering with the sliding of the sliding component 3.

[0026] like Figures 4 to 6 As shown, the capacity expansion bracket 7 includes a transverse bracket 71 and a vertical bracket 72, one side of the transverse bracket 71 is fixed to the mounting frame 4, and the other side is fixed to the screw assembly 2, and is fixed to the mounting frame 4 through the screw assembly 2, the middle part of the vertical bracket 72 is fixed to the transverse bracket 71 through a bolt and nut structure, and the lower part of the vertical bracket 72 can also be fixed to the mounting frame 4 or other fixing parts in the mounting frame 4 through a bolt and nut structure, the transverse bracket 71 extends a first extension plate 712 above the vertical bracket 72, and the vertical bracket 72 is correspondingly provided with a second extension plate 721, the lever shaft 73 is installed on the second extension plate 721 and the first extension plate 712, and the position between the second extension plate 721 and the first extension plate 712 corresponds to the position of the movable hole 713, so that the trigger arm 6 is limitedly installed on the lever shaft 73 between the second extension plate 721 and the first extension plate 712.

[0027] like Figures 1 to 4 As shown, the sliding component 3 includes a slider 31 and a first trigger piece 32, the slider 31 is slidably installed on the screw component 2, the first trigger piece 32 is fixed on the slider 31, the first travel switch 1 is arranged at one end of the sliding component 3, the first trigger part is the first trigger piece 32, the second trigger part is the slider 31, and the trigger arm 6 is arranged on the sliding track of the slider 31. When the slider 31 slides along the screw component 2 to contact the trigger arm 6, the trigger arm 6 can be pushed to trigger the capacity-increasing travel switch 5. By setting the distance, the first trigger piece 32 can trigger the first travel switch 1 and the capacity-increasing travel switch 5 at the same time. The first trigger piece 32 is also installed with a long strip hole, so that the position of the first trigger piece 32 is adjustable, thereby facilitating synchronous triggering.

[0028] like Figure 2 As shown, it also includes a second travel switch 8, and the sliding assembly 3 also includes a second trigger piece 33. The second trigger piece 33 is fixed on the slider 31. The longitudinal rotation isolating circuit breaker enters the isolation state, so that the second trigger piece 33 triggers the second travel switch 8.

[0029] like Figures 1 to 3As shown, the screw assembly 2 includes a bearing block 23, a guide rod 22, a screw 21 and a first transmission mechanism 24. The bearing block 23 is fixed on the mounting frame 4. The screw 21 is rotatably mounted on the bearing block 23. The bearing block 23 is provided with at least two bearing blocks, so that the screw 21 can stably rotate on the bearing block 23. The first transmission mechanism 24 is connected to the screw 21 in transmission. The first transmission mechanism 24 includes a first bevel gear shaft 241. The first bevel gear shaft 241 is directly plugged into the screw 21 for transmission, or is connected for transmission through a transmission structure such as a coupling. The guide rod 22 is fixed on the bearing block 23 along the direction of the screw 21; the sliding assembly 3 is slidably mounted on the screw 21 and the guide rod 22. The forward or reverse rotation of the screw 21 can cause the sliding assembly 3 to slide back and forth on the screw 21.

[0030] like Figure 1 and Figure 2 As shown, it also includes a second transmission mechanism 9, which includes a second bevel gear shaft 92. The second transmission mechanism 9 is connected to the first transmission mechanism 24 in transmission connection, that is, the second bevel gear shaft 92 is meshed with the bevel gear of the first bevel gear shaft 241. The second transmission mechanism 9 is provided with an operating shaft 91, which is arranged on one side of the second bevel gear shaft. It also includes an operating tool, which is connected to the operating shaft 91. The operating tool drives the screw 21 to rotate through the second transmission mechanism 9 and the first transmission structure, thereby driving the sliding assembly 3 to slide back and forth on the screw 21, so that the longitudinal rotation isolating circuit breaker enters an isolated state or a working state.

[0031] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. A travel switch capacity increasing structure of a longitudinal rotation isolating circuit breaker, characterized in that: It includes a first travel switch, a screw assembly, a sliding assembly, a mounting frame, a capacity-increasing travel switch, a trigger arm and a capacity-increasing bracket, wherein the screw assembly is mounted on the mounting frame, the sliding assembly can be slidably mounted on the screw assembly, the capacity-increasing bracket is fixed on the mounting frame, the capacity-increasing travel switch is fixed on the capacity-increasing bracket, one side of the trigger arm is connected to the trigger end of the capacity-increasing travel switch, and the other end extends to the sliding track of the sliding assembly, the sliding assembly includes a first trigger part and a second trigger part, the sliding assembly slides along the screw assembly, the longitudinal rotation isolating circuit breaker enters a working state, the first trigger part is triggered with the first travel switch, and the second trigger part synchronously triggers the capacity-increasing travel switch through the trigger arm.

2. The travel switch capacity increasing structure of the longitudinal rotation isolating circuit breaker according to claim 1 is characterized in that: The capacity-increasing travel switch also includes a fixed end, and the capacity-increasing bracket includes an elongated mounting hole, and the mounting hole is used for the fixed end to be adjustably mounted on the capacity-increasing bracket.

3. The travel switch capacity increasing structure of the longitudinal rotation isolating circuit breaker according to claim 1 is characterized in that: A lever shaft is provided on one side of the capacity expansion bracket, the middle part of the trigger arm is rotatably sleeved on the lever shaft, one end of the trigger arm is hinged to the trigger end of the capacity expansion travel switch, and the other end of the trigger arm extends into the sliding track of the sliding assembly.

4. The travel switch capacity increasing structure of the longitudinal rotation isolating circuit breaker according to claim 3 is characterized in that: The capacity expansion bracket is provided with an active hole, the capacity expansion travel switch is mounted on the capacity expansion bracket on the other side of the lever shaft, and the trigger arm passes through the capacity expansion bracket through the active hole.

5. The travel switch capacity increasing structure of the longitudinal rotation isolating circuit breaker according to claim 3 or 4, characterized in that: The capacity expansion bracket includes a transverse bracket and a vertical bracket, the vertical bracket is fixed on the transverse bracket, the transverse bracket has a first extension plate extending above the vertical bracket, and the lever shaft is installed on the vertical bracket and the first extension plate.

6. The travel switch capacity increasing structure of the longitudinal rotation isolating circuit breaker according to claim 1, characterized in that: The sliding assembly includes a slider and a first trigger piece, the slider is slidably mounted on the screw assembly, the first trigger piece is fixed on the slider, the first travel switch is arranged at one end of the sliding assembly, the first trigger part is the first trigger piece, the second trigger part is the slider, and the trigger arm is arranged on the sliding track of the slider.

7. The travel switch capacity increasing structure of the longitudinal rotation isolating circuit breaker according to claim 6, characterized in that: It also includes a second travel switch, and the sliding assembly also includes a second trigger piece, which is fixed on the slider. The longitudinal rotation isolating circuit breaker enters the isolation state, so that the second trigger piece triggers the second travel switch.

8. The travel switch capacity increasing structure of the longitudinal rotation isolating circuit breaker according to claim 1, characterized in that: The screw assembly includes a bearing block, a guide rod, a screw and a first transmission mechanism, the bearing block is fixed on the mounting frame, the screw is rotatably mounted on the bearing block, the first transmission mechanism is transmission-connected to the screw, and the guide rod is fixed on the bearing block along the direction of the screw; the sliding assembly is slidably mounted on the screw and the guide rod.

9. The travel switch capacity increasing structure of the longitudinal rotation isolating circuit breaker according to claim 8, characterized in that: It also includes a second transmission mechanism, which is transmission-connected to the first transmission mechanism, and an operating shaft is provided on the second transmission mechanism.

10. The travel switch capacity increasing structure of the longitudinal rotation isolating circuit breaker according to claim 9, characterized in that: It also includes an operating tool, which is connected to the operating shaft and drives the screw rod to rotate through the second transmission mechanism and the first transmission structure.

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