Operating mechanism of high-reliability isolating switch

Abstract

The utility model relates to an operating mechanism of a high-reliability isolating switch, which comprises a shell, a mechanism frame, a manual operating shaft, a gear, a rack, a driving shaft, a transmission plate, a cantilever, two energy storage springs respectively arranged between the cantilever and the mechanism frame, and a reset pressure spring assembly arranged between the manual operating shaft and the mechanism frame, the reset compressed spring assembly comprises a reset piece and a reset compressed spring arranged between the reset piece and the mechanism frame, a positioning groove in one end of the reset piece abuts against a deflector rod of the manual operation shaft to form linkage matching of the reset piece and the deflector rod, and the other end of the reset piece is inserted into a sliding hole of the mechanism frame in a penetrating mode. And the resetting piece is in sliding connection fit with the mechanism frame. The utility model has the advantages of simple structure, stable and reliable performance, fast opening and closing speed, convenient assembly and high reliability.

Description

Technical Field

[0001] This utility model relates to a disconnecting switch, specifically to an operating mechanism for a high-reliability disconnecting switch. Background Technology

[0002] A disconnecting switch is a device that isolates a de-energized part from a energized part, creating a clear disconnection point to isolate faulty equipment or facilitate maintenance during power outages. During electrical equipment maintenance, isolating the equipment from the power source creates a clear disconnection point, preventing safety accidents. Disconnecting switches are widely used in power distribution and automation systems in construction, power, petrochemical, and other industries. A disconnecting switch consists of a housing, operating mechanism, and contact system. Existing disconnecting switches have complex operating mechanism designs, cumbersome assembly, and defects such as incomplete opening and closing, and slow opening and closing speeds. Summary of the Invention

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide an operating mechanism for a highly reliable disconnecting switch that is simple in structure, stable and reliable in performance, fast in opening and closing speed, and convenient in assembly.

[0004] To achieve the above objectives, this utility model employs a highly reliable disconnecting switch operating mechanism, comprising a housing, a frame housed within the housing, a manual operating shaft rotatably mounted on the frame, a gear engaging with the manual operating shaft, a rack slidably mounted on the frame and meshing with the gear, a drive shaft rotatably mounted on the frame and used to drive the contact system to perform opening and closing actions, a transmission plate mounted on the drive shaft and engaging with the rack, a cantilever mounted on the drive shaft, two energy storage springs respectively disposed between the cantilever and the frame, and a reset spring assembly disposed between the manual operating shaft and the frame. The reset spring assembly includes a reset element and a reset spring disposed between the reset element and the frame. One end of the reset element has a positioning groove abutting against the lever of the manual operating shaft, forming a linkage between the reset element and the lever. The other end of the reset element is inserted into a sliding hole in the frame, forming a sliding connection between the reset element and the frame.

[0005] The beneficial effects of the above structure are as follows: The operating mechanism adopts an energy storage structure design. During operation, the manual operating shaft rack and pinion, along with the transmission plate, drives the drive shaft. The drive shaft, via a cantilever, allows for the storage and release of energy by the energy storage spring. This energy storage spring accelerates the drive shaft's movement, which in turn drives the contact system to accelerate the opening and closing actions, resulting in faster opening and closing speeds. Furthermore, the reset spring assembly ensures that the manual operating shaft can reliably perform opening and closing actions. When the manual operating shaft is rotated, it drives the reset component, which compresses the spring. When the spring passes its dead center, it releases energy, thereby accelerating the manual operating shaft's opening and closing actions and ensuring that the manual operating shaft can complete the opening and closing actions. Therefore, this operating mechanism has the advantages of simple structure, stable and reliable performance, fast opening and closing speed, and convenient assembly.

[0006] Specifically, the transmission plate is provided with a transmission shaft that meshes with the rack, and the rack is provided with a groove that meshes with the transmission shaft. The transmission shaft passes through the groove, forming a linkage between the transmission shaft and the rack. The rack drives the transmission plate through the transmission shaft, thereby ensuring that the rack can reliably drive the drive shaft, which helps to improve the working reliability of the operating mechanism.

[0007] Specifically, the reset spring is mounted on the reset component, which has a positioning step that cooperates with the reset spring. One end of the reset spring abuts against the positioning step, and the other end abuts against the mechanism frame. The reset spring is positioned between the mechanism frame and the reset component, ensuring reliable operation of the manual operating shaft, thereby improving the operational reliability of the operating mechanism.

[0008] Specifically, two guide members are rotatably mounted on both ends of the cantilever, and two energy storage springs are respectively fitted onto the two guide members. Two spring seats that rotatably cooperate with the two guide members are respectively mounted on the mechanism frame. One end of each guide member is inserted into a positioning groove in one of the two spring seats, forming a sliding connection between the guide members and the spring seats. The two ends of each energy storage spring abut against the two guide members and the two spring seats, respectively. The energy storage springs are connected to the cantilever and the mechanism frame via the two guide members and the two spring seats, thereby facilitating the assembly of the operating mechanism and ensuring its operational reliability.

[0009] Specifically, two connecting shafts are provided between the two guide members and the cantilever. Arc-shaped guide holes are provided on both sides of the mechanism frame corresponding to the two connecting shafts. The two ends of the two connecting shafts are respectively inserted into the arc-shaped guide holes, forming a sliding connection between the connecting shafts and the mechanism frame. The connecting shafts are slidably positioned within the arc-shaped guide holes of the mechanism frame, thereby ensuring reliable operation of the cantilever and improving the working reliability of the operating mechanism.

[0010] Specifically, the mechanism frame is equipped with a micro switch that cooperates with the cantilever. The cantilever moves with the drive shaft and triggers the micro switch, thus turning the micro switch on or off. The drive shaft triggers the micro switch through the cantilever, and the micro switch monitors the working position of the cantilever, thereby ensuring the reliability of the operating mechanism.

[0011] Specifically, two drive wheels, which are rotatably mounted on both sides of the housing and linked to the drive shaft, move with the drive shaft and drive the contact system to perform opening and closing actions. The presence of two drive wheels on the drive shaft for driving the contact system ensures reliable operation of the contact system, thus improving the reliability of the operating mechanism. Attached Figure Description

[0012] Figure 1 This is a perspective view of the isolating switch according to an embodiment of the present utility model.

[0013] Figure 2 This is an exploded view of the disconnecting switch according to an embodiment of the present invention.

[0014] Figure 3 This is a structural diagram of the internal structure of an embodiment of the present utility model.

[0015] Figure 4 This is an assembly diagram of the energy storage spring and cantilever in an embodiment of this utility model. Detailed Implementation

[0016] like Figures 1-4As shown, this utility model embodiment is an operating mechanism for a high-reliability disconnector switch, including a housing 10, a mechanism frame 11 disposed within the housing 10, a manual operating shaft 12 rotatably disposed on the mechanism frame 11, a gear 13 linked to the manual operating shaft 12, a rack 14 slidably disposed on the mechanism frame 11 and meshing with the gear 13, a drive shaft 15 rotatably disposed on the mechanism frame 11 and used to drive the contact system to perform opening and closing actions, a transmission plate 16 disposed on the drive shaft 15 and linked to the rack 14, a cantilever 17 linked to the drive shaft 15, and transmission plates respectively disposed on the cantilever 17. Two energy storage springs 18 are located between the manual operation shaft 12 and the mechanism frame 11. A reset spring assembly 20 is provided between the manual operation shaft 12 and the mechanism frame 10. The reset spring assembly 20 includes a reset member 21 and a reset spring 22 provided between the reset member 21 and the mechanism frame 11. The positioning groove 211 at one end of the reset member 21 abuts against the lever 121 of the manual operation shaft 12, forming a linkage between the reset member 21 and the lever 121. The other end of the reset member 21 is inserted into the sliding hole 111 of the mechanism frame 11, forming a sliding connection between the reset member 21 and the mechanism frame 11. A transmission shaft 161 that cooperates with the rack 14 is provided on the transmission plate 16. A groove 141 that cooperates with the transmission shaft 161 is provided on the rack 14. The transmission shaft 161 is inserted into the groove 141, forming a linkage between the transmission shaft 161 and the rack 14. The rack drives the transmission plate via the transmission shaft, ensuring reliable operation of the drive shaft and thus improving the reliability of the operating mechanism. The reset spring 22 is mounted on the reset member 21, which has a positioning step 212 that mates with the reset spring 22. One end of the reset spring 22 abuts against the positioning step 212, and the other end abuts against the mechanism frame 11. The reset spring is positioned between the mechanism frame and the reset member, ensuring reliable operation of the manual operating shaft and further improving the reliability of the operating mechanism.

[0017] like Figure 3 and 4As shown, two guide members 171 are rotatably mounted on both ends of the cantilever 17, and two energy storage springs 18 are respectively fitted onto the two guide members 171. Two spring seats 112, which cooperate with the two guide members 171, are rotatably mounted on the frame 11. One end of each guide member 171 is inserted into the positioning groove of each spring seat 112, forming a sliding connection between the guide members 171 and the spring seats 112. The two ends of each energy storage spring 18 abut against the two guide members 171 and the two spring seats 112, respectively. The energy storage springs are connected to the cantilever and frame via the two guide members and the two spring seats, facilitating the assembly of the operating mechanism and ensuring its operational reliability. Two connecting shafts 172 are provided between the two guide members 171 and the cantilever 17. Arc-shaped guide holes 113 are respectively provided on both sides of the mechanism frame 11 corresponding to the two connecting shafts 172. The two ends of the two connecting shafts 172 are respectively inserted into the arc-shaped guide holes 113, forming a sliding connection between the connecting shafts 172 and the mechanism frame 11. The connecting shafts are slidably positioned within the arc-shaped guide holes of the mechanism frame, ensuring reliable operation of the cantilever and thus improving the working reliability of the operating mechanism. A micro switch 19 is provided on the mechanism frame 11 to cooperate with the cantilever 17. The cantilever 17 moves with the drive shaft 15 and triggers the micro switch 19, thus turning the micro switch 19 on or off. The drive shaft triggers the micro switch through the cantilever, and the micro switch monitors the working position of the cantilever, thereby ensuring the working reliability of the operating mechanism. Two drive wheels 151, which are linked to the drive shaft 15, are rotatably mounted on both sides of the housing 10. The two drive wheels 151 move with the drive shaft 15 and drive the contact system to perform opening and closing actions. The two drive wheels on the drive shaft for driving the contact system can reliably drive the contact system to operate, which helps to improve the working reliability of the operating mechanism.

[0018] This operating mechanism adopts an energy storage structure design. During operation, the manual operating shaft rack and pinion, along with the transmission plate, drives the drive shaft. The drive shaft, via a cantilever, allows for the storage and release of energy by a storage spring. This energy storage spring accelerates the drive shaft's movement, which in turn drives the contact system to accelerate the opening and closing actions, resulting in faster opening and closing speeds. Furthermore, the reset spring assembly ensures reliable opening and closing actions by the manual operating shaft. When the manual operating shaft is rotated, it drives a reset component, which compresses the spring. When the spring passes its dead center, it releases energy, thus accelerating the manual operating shaft's opening and closing actions and ensuring that the manual operating shaft can complete the opening and closing actions. Therefore, this operating mechanism has the advantages of simple structure, stable and reliable performance, fast opening and closing speeds, and convenient assembly.

Claims

1. An operating mechanism for a high-reliability disconnector switch, characterized in that: The device includes a housing, a frame housed within the housing, a manual operating shaft rotatably mounted on the frame, a gear engaging with the manual operating shaft, a rack slidably mounted on the frame and meshing with the gear, a drive shaft rotatably mounted on the frame and used to drive the contact system to perform opening and closing actions, a transmission plate mounted on the drive shaft and engaging with the rack, a cantilever mounted on the drive shaft, two energy storage springs respectively disposed between the cantilever and the frame, and a reset spring assembly disposed between the manual operating shaft and the frame. The reset spring assembly includes a reset element and a reset spring disposed between the reset element and the frame. One end of the reset element has a positioning groove that abuts against the lever of the manual operating shaft, forming a linkage between the reset element and the lever. The other end of the reset element is inserted into a sliding hole in the frame, forming a sliding connection between the reset element and the frame.

2. The operating mechanism of the high-reliability disconnector according to claim 1, characterized in that: The transmission plate is provided with a transmission shaft that cooperates with the rack, and the rack is provided with a groove that cooperates with the transmission shaft. The transmission shaft is inserted into the groove, and a linkage between the transmission shaft and the rack is formed.

3. The operating mechanism of the high-reliability disconnector according to claim 1 or 2, characterized in that: The reset spring is mounted on the reset component, which has a positioning step that cooperates with the reset spring. One end of the reset spring abuts against the positioning step, and the other end of the reset spring abuts against the mechanism frame.

4. The operating mechanism of the high-reliability disconnector according to claim 1 or 2, characterized in that: Two guide members are rotatably mounted on both ends of the cantilever. Two energy storage springs are respectively fitted onto the two guide members. Two spring seats that cooperate with the two guide members are rotatably mounted on the mechanism frame. One end of each of the two guide members is inserted into the positioning groove of the two spring seats, forming a sliding connection between the two guide members and the two spring seats. The two ends of the two energy storage springs abut against the two guide members and the two spring seats respectively.

5. The operating mechanism of the high-reliability disconnector according to claim 4, characterized in that: Two connecting shafts are provided between the two guide members and the cantilever. Arc-shaped guide holes are provided on both sides of the mechanism frame corresponding to the two connecting shafts. The two ends of the two connecting shafts are respectively inserted into the arc-shaped guide holes, forming a sliding connection between the connecting shafts and the mechanism frame.

6. The operating mechanism of the high-reliability disconnector according to claim 1 or 2, characterized in that: The mechanism frame is equipped with a micro switch that cooperates with the cantilever. The cantilever moves with the drive shaft and triggers the micro switch, thereby turning the micro switch on or off.

7. The operating mechanism of the high-reliability disconnector according to claim 1 or 2, characterized in that: Two drive wheels that are rotatably mounted on both sides of the housing and are linked to the drive shaft are respectively provided. The two drive wheels move with the drive shaft and drive the contact system to perform opening and closing actions.

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