Manual and automatic switching assembly of five-prevention interlocking operation mechanism

Abstract

The utility model relates to a manual and automatic switching assembly of a five-prevention interlocking operation mechanism, which comprises a mechanism frame, an interlocking sliding plate, a manual and automatic switching sliding plate, a manual and automatic switching shaft and a microswitch which is arranged on a front panel and used for controlling on and off of a motor power supply. The interlocking sliding plate moves along with the automatic switching shaft and shields the grounding operation shaft and the isolation operation shaft, and locking of manual operation is achieved. When the manual and automatic switching shaft slides to a manual operation position, the manual and automatic switching sliding plate acts along with the manual and automatic switching shaft and triggers the microswitch, the microswitch cuts off a motor power source, and locking of electric operation is achieved. The utility model has the advantages of simple structure, stable and reliable performance, convenient operation, reliable interlocking and convenient assembly.

Description

Technical Field

[0001] This utility model relates to an operating mechanism, specifically to a manual / automatic switching component of a five-proof interlocking operating mechanism. Background Technology

[0002] The five-prevention interlocking operating mechanism is widely used in high-voltage switchgear, ring main units, and other power equipment to ensure that no misoperation occurs during various operations, thus guaranteeing the safe operation of the power system and the safety of personnel. The five-prevention functions mainly include: 1. Preventing accidental opening and closing of circuit breakers: Ensuring that circuit breakers can only be opened and closed in the correct state, avoiding equipment damage or safety accidents caused by misoperation. 2. Preventing opening and closing of disconnecting switches under load: Before operating the disconnecting switch, it must be ensured that the circuit breaker is in the open state to avoid operation under load. 3. Preventing connecting (closing) grounding wires (grounding switches) while energized: Before closing the grounding switch, it must be ensured that the equipment is de-energized to avoid operation while energized. 4. Preventing energization while grounding wires (grounding switches) are connected: Ensuring that the circuit breaker cannot be energized when the grounding switch is closed, avoiding grounding of equipment while energized. 5. Preventing accidental entry into energized areas: When equipment is energized, preventing personnel from accidentally entering dangerous areas to ensure personnel safety. With the rapid development of my country's national economy, modern society has increasingly higher requirements for power supply. Developing ultra-high voltage power grids and building intelligent power grids that are economical, safe, efficient, and clean has become a development trend for the power grid. The existing manual-automatic switching components of the electric five-proof interlocking operating mechanism have a relatively complex structural design and are easy to operate. However, these components also suffer from unreliable interlocking and are easy to assemble. Summary of the Invention

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a manual / automatic switching component for a five-proof interlocking operation mechanism that is simple in structure, stable and reliable in performance, convenient in operation, reliable in interlocking, and convenient in assembly.

[0004] To achieve the above objectives, this utility model employs a manual / automatic switching component of a five-proof interlocking operating mechanism, comprising a frame, an interlocking slide plate slidably mounted on the front panel of the frame between the grounding operating shaft and the isolation operating shaft, a manual / automatic switching slide plate slidably mounted on the interlocking slide plate, a manual / automatic switching shaft mounted on the manual / automatic switching slide plate and used to drive the interlocking slide plate, and a micro switch mounted on the front panel and used to control the on / off state of the motor power supply. When the manual / automatic switching shaft slides to the electric position, the interlocking slide plate moves with the manual / automatic switching shaft and blocks the grounding operating shaft and the isolation operating shaft, thereby locking the manual operation; when the manual / automatic switching shaft slides to the manual operation position, the manual / automatic switching slide plate moves with the manual / automatic switching shaft and triggers the micro switch, and the micro switch cuts off the motor power supply, thereby locking the electric operation.

[0005] The beneficial effects of the above structure are as follows: the manual / automatic switching component enables switching between manual and electric operation of the five-proof interlocking mechanism. Furthermore, the modular design of this component simplifies the structure, makes operation more convenient, and enhances interlocking reliability. When the manual / automatic switching shaft slides to the electric position, the interlocking slide plate moves accordingly and blocks the grounding and isolation operating shafts, locking the manual operation. When the manual / automatic switching shaft slides to the manual operation position, the slide plate moves accordingly and triggers a micro switch, which cuts off the motor power, locking the electric operation. Therefore, the manual / automatic switching component of this five-proof interlocking mechanism has the advantages of simple structure, stable and reliable performance, convenient operation, reliable interlocking, and easy assembly.

[0006] Specifically, the interlocking slide plate is provided with a guide hole through which the manual / automatic switching shaft can pass. The front panel is provided with a manual position locking hole and an electric position locking hole through which the manual / automatic switching shaft can pass. The manual position locking hole and the electric position locking hole are connected and are T-shaped. When the manual / automatic switching shaft slides to the electric position locking hole, the interlocking slide plate moves with the manual / automatic switching shaft and blocks the grounding operation shaft and the isolation operation shaft. When the manual / automatic switching shaft slides to the manual position locking hole, the manual / automatic switching slide plate moves with the manual / automatic switching shaft and triggers the micro switch, and the micro switch cuts off the motor power. When the manual / automatic switch is moved to the electric position, the manual / automatic switch slide moves with the manual / automatic switch shaft. The micro switch is no longer restricted by the manual / automatic switch slide, and the micro switch connects the motor power supply. The interlock slide moves with the manual / automatic switch shaft and blocks the grounding and isolation operating shafts. At this time, the manual operation function is locked. When the manual / automatic switch is moved to the manual position, the manual / automatic switch slide moves with the manual / automatic switch shaft and abuts the micro switch. The micro switch cuts off the motor power supply. At this time, the electric operation function is locked, and the manual / automatic switch shaft can slide in the locking hole in the manual position, thereby realizing the manual operation of the five-proof interlocking operating mechanism.

[0007] Specifically, the manual position locking hole has a grounding locking end and an isolation locking end at both ends. When the manual / automatic switching shaft slides to the grounding locking end, the interlocking slide plate moves with the manual / automatic switching shaft and blocks the grounding operating shaft. When the manual / automatic switching shaft slides to the isolation locking end, the interlocking slide plate moves with the manual / automatic switching shaft and blocks the isolation operating shaft. When the manual / automatic switching shaft slides to the manual position, it can switch between the grounding locking end and the isolation locking end, thereby achieving interlocking between the grounding operating shaft and the isolation operating shaft, which helps to improve the interlocking reliability of the manual / automatic switching component.

[0008] Specifically, the interlocking slide plate is provided with multiple guide bolts, and the manual / automatic switching slide plate is provided with multiple guide holes that mate with the guide bolts. Each guide bolt has multiple copper sleeves inserted into the guide holes. These copper sleeves slide back and forth within the guide holes as the guide bolts move. The manual / automatic switching slide plate is slidably mounted on the copper sleeves of the guide bolts, ensuring reliable operation of the manual / automatic switching slide plate on the interlocking slide plate, thereby improving the operational reliability of the manual / automatic switching assembly.

[0009] Specifically, a support plate is provided on the front panel corresponding to the micro switch, and the micro switch is fixed on the support plate. A trigger plate that cooperates with the micro switch is provided on the manual / automatic switching slide. The trigger plate triggers the micro switch in response to the movement of the manual / automatic switching slide. The manual / automatic switching slide triggers the micro switch via the trigger plate, thus ensuring reliable triggering of the micro switch and improving the operational reliability of the manual / automatic switching component.

[0010] Specifically, the interlocking slide plate has a vertically bent locking piece on one side, and the front panel has a sliding hole that mates with the locking piece. One end of the locking piece passes through the sliding hole and has a locking hole exposed outside the front panel. The front panel also has a locking plate that mates with the locking piece, and the locking plate has multiple padlock holes that mate with the locking holes. With the locking plate on the front panel mates with the interlocking slide plate, when the five-proof interlocking operating mechanism is in the manual operation position, the locking piece can slide within the sliding hole, and padlocks can be inserted into the locking holes of the locking piece and the padlock holes of the locking plate. This allows for locking the interlocking slide plate in either the grounding or isolation position, improving the safety performance of the five-proof interlocking operating mechanism.

[0011] Specifically, the front panel is provided with multiple guide screws, each with a guide sleeve. The interlocking slide plate is provided with multiple sliding guide holes that mate with the guide sleeves. The guide sleeves are inserted into the sliding guide holes, and the interlocking slide plate is slidably connected to the guide screws. The interlocking slide plate is slidably mounted on the guide screws on the front panel, ensuring reliable operation of the interlocking slide plate on the front panel, thereby improving the operational reliability of the five-proof interlocking operating mechanism.

[0012] Specifically, the grounding operating shaft and the isolation operating shaft are respectively equipped with grounding and isolation switching indicator plates that cooperate with the manual / automatic switching slide. The manual / automatic switching slide has two bending limit plates at both ends that cooperate with the grounding and isolation switching indicator plates. These two bending limit plates move with the manual / automatic switching slide and respectively abut against the grounding and isolation switching indicator plates. The presence of these two bending limit plates on the manual / automatic switching slide enables interlocking between the grounding and isolation operating shafts, resulting in higher reliability of the interlocking. Attached Figure Description

[0013] Figure 1 This is a perspective view of the anti-interlocking operating mechanism of Embodiment 5 of this utility model.

[0014] Figure 2 This is an exploded view of the anti-interlocking operating mechanism of Embodiment 5 of this utility model.

[0015] Figure 3 This is a perspective view of the manual / automatic switching component according to an embodiment of the present invention.

[0016] Figure 4 This is a structural diagram of the anti-interlocking operating mechanism in Embodiment 5 of this utility model. Detailed Implementation

[0017] like Figures 1 to 3 As shown, this utility model embodiment is a manual / automatic switching component of a five-proof interlocking operation mechanism, including a frame 10, an interlocking slide plate 14 slidably disposed on the front panel 13 of the frame 10 between the grounding operation shaft 11 and the isolation operation shaft 12, a manual / automatic switching slide plate 15 slidably disposed on the interlocking slide plate 14, a manual / automatic switching shaft 16 disposed on the manual / automatic switching slide plate 15 and used to drive the interlocking slide plate 14, and a micro switch 17 disposed on the front panel 13 and used to control the on / off of the motor power supply. When the manual / automatic switching shaft 16 slides to the electric position, the interlocking slide plate 14 moves with the manual / automatic switching shaft 16 and blocks the grounding operation shaft 11 and the isolation operation shaft 12, thereby locking the manual operation; when the manual / automatic switching shaft 16 slides to the manual operation position, the manual / automatic switching slide plate 14 moves with the manual / automatic switching shaft 16 and triggers the micro switch 17, and the micro switch 17 cuts off the motor power supply, thereby locking the electric operation.

[0018] like Figure 2 and 3As shown, the interlocking slide plate 14 is provided with a guide hole 141 through which the manual / automatic switching shaft 16 can pass. The front panel 13 is provided with a manual position locking hole 131 and an electric position locking hole 132 through which the manual / automatic switching shaft 16 can pass. The manual position locking hole 131 and the electric position locking hole 132 are connected and are T-shaped. When the manual / automatic switching shaft 16 slides to the electric position locking hole 132, the interlocking slide plate 14 moves with the manual / automatic switching shaft 16 and blocks the grounding operation shaft 11 and the isolation operation shaft 12. When the manual / automatic switching shaft 16 slides to the manual position locking hole 131, the manual / automatic switching slide plate 15 moves with the manual / automatic switching shaft 16 and triggers the micro switch 17, and the micro switch 17 cuts off the motor power. When the manual / automatic switch is moved to the electric position, the manual / automatic switch slide moves with the manual / automatic switch shaft. The micro switch is no longer restricted by the manual / automatic switch slide, and the micro switch connects the motor power supply. The interlock slide moves with the manual / automatic switch shaft and blocks the grounding and isolation operating shafts. At this time, the manual operation function is locked. When the manual / automatic switch is moved to the manual position, the manual / automatic switch slide moves with the manual / automatic switch shaft and abuts the micro switch. The micro switch cuts off the motor power supply. At this time, the electric operation function is locked, and the manual / automatic switch shaft can slide in the locking hole in the manual position, thereby realizing the manual operation of the five-proof interlocking operating mechanism. The manual position locking hole 131 has a grounding locking end 1311 and an isolation locking end 1312 at its two ends. When the manual / automatic switching shaft 16 slides to the grounding locking end 1311, the interlocking slide plate 14 moves with the manual / automatic switching shaft 16 and blocks the grounding operating shaft 11. When the manual / automatic switching shaft 16 slides to the isolation locking end 1312, the interlocking slide plate 14 moves with the manual / automatic switching shaft 16 and blocks the isolation operating shaft 12. When the manual / automatic switching shaft slides to the manual position, it can switch between the grounding locking end and the isolation locking end, thereby achieving interlocking between the grounding operating shaft and the isolation operating shaft, which helps to improve the interlocking reliability of the manual / automatic switching component. The interlocking slide plate 14 is provided with a plurality of guide bolts 142, and the manual / automatic switching slide plate 15 is provided with a plurality of guide holes 151 that cooperate with the guide bolts 142. Each guide bolt 142 is provided with a plurality of copper sleeves 143 that pass through the guide holes 151. The copper sleeves 143 move with the guide bolts 142 and slide back and forth within the guide holes 151. The manual / automatic switching slide plate is slidably mounted on the copper sleeves of the guide bolts, thereby ensuring reliable operation of the manual / automatic switching slide plate on the interlocking slide plate and improving the operational reliability of the manual / automatic switching assembly.A support plate 18 is provided on the front panel 13 corresponding to the micro switch 17. The micro switch 17 is fixed on the support plate 18, and a trigger plate 152 is provided on the manual / automatic switching slide 15 to cooperate with the micro switch 17. The trigger plate 152 triggers the micro switch 17 as the manual / automatic switching slide 15 moves. The manual / automatic switching slide triggers the micro switch through the trigger plate, thereby ensuring that the manual / automatic switching slide can reliably trigger the micro switch, which is beneficial to improving the working reliability of the manual / automatic switching component. One side of the interlocking slide 14 has a vertically bent locking piece 144. The front panel 13 is provided with a sliding hole 133 to cooperate with the locking piece 144. One end of the locking piece 144 passes through the sliding hole 133 and has a locking hole 145 exposed outside the front panel 13. The front panel 13 is provided with a locking plate 19 to cooperate with the locking piece 144. The locking plate 19 is provided with a plurality of padlock holes 191 to cooperate with the locking hole 145. A locking plate that mates with the interlocking slide plate is provided on the front panel. When the five-proof interlocking operating mechanism is in the manual operation position, the locking plate can slide within the sliding hole, and a padlock can be inserted into the locking hole of the locking plate and the padlock hole of the locking plate. This allows the interlocking slide plate to be locked in either the grounding or isolation position, which improves the safety performance of the five-proof interlocking operating mechanism. The front panel 13 is provided with multiple guide screws 134, each with multiple guide sleeves 135. The interlocking slide plate 14 is provided with multiple sliding guide holes 146 that mate with the guide sleeves 135. The guide sleeves 135 are inserted into the sliding guide holes 146, and the interlocking slide plate 14 is slidably connected to the guide screws 134. The interlocking slide plate is slidably mounted on the multiple guide screws on the front panel, ensuring reliable operation of the interlocking slide plate on the front panel, thus improving the operational reliability of the five-proof interlocking operating mechanism.

[0019] like Figure 4 As shown, the grounding operation shaft 11 and the isolation operation shaft 12 are respectively equipped with grounding / isolation indicator plates 111 and 121, which cooperate with the manual / automatic switching slide plate 15. The manual / automatic switching slide plate 15 has two bending limit plates 153 at both ends that cooperate with the grounding / isolation indicator plates 111 and 121. These two bending limit plates 153 move with the manual / automatic switching slide plate 15 and respectively abut against the grounding / isolation indicator plates 111 and 121. The presence of these two bending limit plates on the manual / automatic switching slide plate enables interlocking between the grounding operation shaft and the isolation operation shaft, resulting in higher reliability of the interlocking.

[0020] This manual / automatic switching component enables switching between manual and electric operation of the five-proof interlocking mechanism. It features a modular design, simplifying the structure, enhancing operation convenience, and ensuring more reliable interlocking. When the manual / automatic switching shaft slides to the electric position, the interlocking slide plate moves accordingly and blocks the grounding and isolation operating shafts, locking the manual operation. When the shaft slides to the manual operation position, the slide plate moves with the shaft and triggers a microswitch, which cuts off the motor power, locking the electric operation. Therefore, this manual / automatic switching component for the five-proof interlocking mechanism offers advantages such as simple structure, stable and reliable performance, convenient operation, reliable interlocking, and easy assembly.

Claims

1. A manual / automatic switching component for a five-proof interlocking operating mechanism, characterized in that: The device includes a frame, an interlocking slide plate slidably mounted on the front panel of the frame between the corresponding grounding and isolation operating shafts, a manual / automatic switching slide plate slidably mounted on the interlocking slide plate, a manual / automatic switching shaft mounted on the manual / automatic switching slide plate and used to drive the interlocking slide plate, and a micro switch mounted on the front panel and used to control the on / off state of the motor power supply. When the manual / automatic switching shaft is slid to the electric position, the interlocking slide plate moves with the manual / automatic switching shaft and blocks the grounding and isolation operating shafts, thus locking the manual operation. When the manual / automatic switching shaft is slid to the manual operation position, the manual / automatic switching slide plate moves with the manual / automatic switching shaft and triggers the micro switch, which cuts off the motor power supply, thus locking the electric operation.

2. The manual / automatic switching component of the five-proof interlocking operating mechanism according to claim 1, characterized in that: The interlocking slide plate is provided with a guide hole through which the manual / automatic switching shaft can pass. The front plate is provided with a manual position locking hole and an electric position locking hole through which the manual / automatic switching shaft can pass. The manual position locking hole and the electric position locking hole are connected and are T-shaped. When the manual / automatic switching shaft slides to the electric position locking hole, the interlocking slide plate moves with the manual / automatic switching shaft and blocks the grounding operation shaft and the isolation operation shaft. When the manual / automatic switching shaft slides to the manual position locking hole, the manual / automatic switching slide plate moves with the manual / automatic switching shaft and triggers the micro switch, which cuts off the motor power.

3. The manual / automatic switching component of the five-proof interlocking operating mechanism according to claim 2, characterized in that: The manual position locking hole has a grounding locking end and an isolation locking end at both ends. When the manual / automatic switching shaft slides to the grounding locking end, the interlocking slide plate moves with the manual / automatic switching shaft and blocks the grounding operation shaft. When the manual / automatic switching shaft slides to the isolation locking end, the interlocking slide plate moves with the manual / automatic switching shaft and blocks the isolation operation shaft.

4. The manual / automatic switching component of the five-proof interlocking operating mechanism according to claim 1 or 2, characterized in that: The interlocking slide plate is provided with multiple guide bolts, and the manual / automatic switching slide plate is provided with multiple guide holes that cooperate with the multiple guide bolts. The multiple guide bolts are provided with multiple copper sleeves that are inserted into the multiple guide holes. The multiple copper sleeves move with the multiple guide bolts and slide back and forth in the multiple guide holes.

5. The manual / automatic switching component of the five-proof interlocking operating mechanism according to claim 1 or 2, characterized in that: A support plate is provided on the front panel corresponding to the micro switch. The micro switch is fixed on the support plate, and a trigger plate that cooperates with the micro switch is provided on the manual / automatic switching slide. The trigger plate automatically switches the slide movement and triggers the micro switch.

6. The manual / automatic switching component of the five-proof interlocking operating mechanism according to claim 1 or 2, characterized in that: The interlocking slide plate has a vertically bent locking piece on one side, and the front panel is provided with a sliding hole that cooperates with the locking piece. One end of the locking piece passes through the sliding hole and is provided with a locking hole exposed outside the front panel. The front panel is provided with a locking plate that cooperates with the locking piece, and the locking plate is provided with a plurality of padlock holes that cooperate with the locking holes.

7. The manual / automatic switching component of the five-proof interlocking operating mechanism according to claim 1 or 2, characterized in that: The front panel is provided with a plurality of guide screws, and the plurality of guide screws are provided with a plurality of guide sleeves. The interlocking slide plate is provided with a plurality of sliding guide holes that cooperate with the plurality of guide sleeves. The plurality of guide sleeves are inserted into the plurality of sliding guide holes, and the interlocking slide plate is slidably connected to the plurality of guide screws.

8. The manual / automatic switching component of the five-proof interlocking operating mechanism according to claim 1 or 2, characterized in that: The grounding operation shaft and the isolation operation shaft are respectively linked to a grounding switch indicator plate and an isolation switch indicator plate that cooperate with the manual / automatic switching slide. The manual / automatic switching slide has two bending limit plates at both ends that cooperate with the grounding switch indicator plate and the isolation switch indicator plate. The two bending limit plates move with the manual / automatic switching slide and respectively abut against the grounding switch indicator plate and the isolation switch indicator plate.

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