CN-121983446-A - Manual operating mechanism suitable for handle operation

CN121983446ACN 121983446 ACN121983446 ACN 121983446ACN-121983446-A

Abstract

The invention discloses a manual operating mechanism suitable for handle operation, which comprises a shell, wherein a first through hole is formed in the top end surface of the shell, a main rotating shaft is arranged in the first through hole, a second through hole is formed in the side surface of the shell, an auxiliary rotating shaft is arranged in the second through hole, the auxiliary rotating shaft and the main rotating shaft are vertically arranged, the main rotating shaft and the auxiliary rotating shaft are connected with a driving assembly, the driving assembly is connected with a sliding assembly in a linkage manner and used for driving a handle to switch on and off, a fixed support is arranged in the shell and used for bearing the sliding assembly, when the main rotating shaft or the auxiliary rotating shaft rotates to a first direction, the driving assembly drives the sliding assembly and drives the handle to switch on, and when the main rotating shaft or the auxiliary rotating shaft rotates to a second direction, the driving assembly drives the sliding assembly and drives the handle to switch off. The invention realizes a double-rotating-shaft redundant operation mechanism through the vertical arrangement of the main rotating shaft and the auxiliary rotating shaft and the independent driving function, effectively eliminates single fault point dependence, and simultaneously combines the optimized layout of the driving assembly and the sliding assembly, thereby simplifying the transmission path and the internal structure.

Inventors

BIAN YUXING
WANG JINLING
HUANG MINGFANG
LUO YUANHUI

Assignees

浙江厚达电气有限公司

Dates

Publication Date: 20260505
Application Date: 20260323

Claims (9)

1. The utility model provides a manual operating mechanism suitable for handle operation, its characterized in that, includes the casing, the top terminal surface of casing is provided with first through-hole, be provided with main pivot in the first through-hole, the second through-hole has been seted up to the side of casing, be provided with the auxiliary shaft in the second through-hole, auxiliary shaft and main pivot set up perpendicularly, drive assembly is connected with to main pivot and auxiliary shaft, drive assembly linkage is connected with the slip subassembly and is used for driving the handle divide-shut brake, be provided with the fixed bolster in the casing and be used for bearing the slip subassembly, when main pivot or auxiliary shaft rotated to first direction, drive assembly drove the slip subassembly and drive the handle switch-on, when main pivot or auxiliary shaft rotated to the second direction, drive assembly drove slip subassembly and drive the handle switch-off.
2. The manual operating mechanism for a handle according to claim 1, wherein the driving assembly comprises a first gear, a second gear and a transmission rod arranged on the extension portion of the first gear, the first gear is linked with the main rotating shaft, the second gear is linked with the auxiliary rotating shaft, the first gear is meshed with the second gear, the first gear is provided with an extension portion, an opening penetrating the extension portion is formed in the extension portion, the transmission rod is arranged in the opening, a guide groove is formed in the fixing support, and the transmission rod passes through the guide groove to be linked with the sliding assembly.
3. The manual operating mechanism for a handle operation according to claim 2, wherein the fixing bracket comprises a main board and side support legs, wherein the side support legs are used for clamping with a circuit breaker housing, and the guide groove is formed in the main board.
4. A manual operating mechanism adapted for handle operation according to claim 3, wherein the side legs include a first leg, a second leg, a third leg and a fourth leg, the first leg and the second leg are located on the same side, the third leg and the fourth leg are located on the same side, the slide assembly includes a first rail, a second rail and a slide block slidably disposed on the first rail and the second rail, a side of the slide block facing the handle is formed with a first stopper and a second stopper, a recess is formed between the first stopper and the second stopper, a side of the slide block facing away from the handle is formed with a recess, one end of the driving lever is located in the recess, the first rail is located between the first leg and the third leg, the second rail is located between the second leg and the fourth leg, and the first rail and the second rail are disposed through the slide block.
5. A manually operable mechanism adapted for handle operation as claimed in claim 3 wherein said first and second gears are bevel gears.
6. The manual operation mechanism for handle operation according to claim 1, wherein the driving assembly comprises a connecting rod connected with the main rotating shaft and a sector gear arranged on the auxiliary rotating shaft, the connecting rod is located in the fixed support and is linked with the sliding assembly, the sliding assembly is driven by the connecting rod when the main rotating shaft rotates, the sliding assembly drives the handle to open and close, a notch matched with gear teeth of the sector gear is formed in a part, close to the sector gear, of the sliding assembly, in the rotating process, the gear teeth and the notch are matched to push the sliding assembly to move to open and close, a supporting part is formed on the fixed support and is used for placing a torsion spring, the torsion spring is matched with the sector gear and provides restoring force for the sector gear, and an acting part for abutting against one end of the torsion spring is arranged at a position, close to the top of the sector gear.
7. A manual operating mechanism adapted for handle operation according to claim 6, wherein the fixed bracket comprises a main plate and side legs for clamping with a circuit breaker housing.
8. The manual operating mechanism according to claim 7, wherein the side legs include a first leg, a second leg, a third leg, and a fourth leg, the first leg and the second leg are located on the same side, the third leg and the fourth leg are located on the same side, the sliding assembly includes a first rail, a second rail, and a sliding plate slidably disposed on the first rail and the second rail, the sliding plate includes an upper sliding bracket and a lower sliding block that are connected to each other, the upper sliding bracket is provided with a through hole, the lower sliding block is provided with a groove corresponding to the through hole for accommodating the other end of the connecting rod, a first stopper and a second stopper are formed on a side of the lower sliding block facing the handle, the first stopper and the second stopper are disposed between the first leg and the third leg, the second rail is disposed between the second leg and the fourth leg, and the first rail and the second rail are disposed through the upper sliding bracket, and the upper sliding bracket is provided with a notch.
9. A manual operating mechanism for a handle according to claim 4 or 8, wherein the first and second sides of the fixing bracket are provided with fixing plates, the first and second sides are disposed opposite to each other, the fixing plates are fixedly fastened to the side legs, the inner sides of the fixing plates are further provided with snap-fit positioning plates, and a snap-fit is provided between the snap-fit positioning plates.

Description

Manual operating mechanism suitable for handle operation Technical Field The invention relates to the technical field of electrical switching equipment, in particular to a manual operating mechanism suitable for handle operation, which is used for driving a handle of a circuit breaker to perform opening and closing operations. Background In the operation process of the circuit breaker, a handle of the manual operating mechanism is used as a core driving component to bear the key function of realizing reliable switching-on and switching-off of the circuit breaker. The handle design needs to ensure operation stability, and simultaneously integrates a locking protection mechanism to prevent misoperation in a locking state and ensure safe operation of equipment. However, currently widely used manual operating mechanisms generally employ a single spindle configuration, which has significant drawbacks. When the single rotating shaft is worn, broken or jammed and other faults occur due to long-term use, the whole operating mechanism immediately loses functions and cannot complete opening and closing actions, so that the circuit breaker cannot work normally. This single point of failure problem forces the user to replace the entire mechanism, greatly increasing maintenance costs and downtime. In addition, the internal structure of the existing manual operating mechanism is too complicated, and comprises a large number of precise parts and complex transmission paths, so that the assembly process is extremely difficult, assembly errors are easy to generate, the reliability of the whole structure is reduced, and the operation handfeel and the service life are influenced. The complex structure also increases the difficulty of production and manufacture, and is not beneficial to large-scale production and quality control. Therefore, there is a need for a new manual operating mechanism design to eliminate single spindle dependence, improve system redundancy and fault tolerance, simplify internal structure, and reduce assembly complexity, thereby improving reliability and maintainability of the device. In view of the above, there is a need in the art for improvements. Disclosure of Invention The application aims to provide a manual operating mechanism suitable for handle operation, which has a double-rotating-shaft redundant design, when any one of a main rotating shaft or an auxiliary rotating shaft fails, the other rotating shaft can still drive the handle to complete opening and closing operation, so that the problem of a single failure point is effectively avoided, the reliability and maintainability of the operating mechanism are improved, and meanwhile, the manual operating mechanism is reasonable in structural design, the internal structure is simplified, and the assembly difficulty is reduced. In order to achieve the above purpose, the present invention adopts the following technical scheme: The application provides a manual operation mechanism suitable for handle operation, which has the following technical scheme: Including the casing, the top terminal surface of casing is provided with first through-hole, be provided with main pivot in the first through-hole, the second through-hole has been seted up to the side of casing, dispose vice pivot in the second through-hole, vice pivot and main pivot set up perpendicularly, drive assembly is connected to main pivot and vice pivot, drive assembly linkage is connected with the slip subassembly and is used for driving the handle divide-shut brake, be provided with the fixed bolster in the casing and be used for bearing the slip subassembly, when main pivot or vice pivot rotate to first direction, drive assembly drives the slip subassembly and drives the handle and close a floodgate, when main pivot or vice pivot rotate to the second direction, drive assembly drives the slip subassembly and drives the handle and break a brake. Further, the application also provides a driving assembly which comprises a first gear, a second gear and a transmission rod positioned on the extension part of the first gear, wherein the first gear is linked with the main rotating shaft, the second gear is linked with the auxiliary rotating shaft, the first gear is meshed with the second gear, the extension part is formed on the first gear, an opening penetrating through the extension part is formed on the extension part, the transmission rod is arranged in the opening, a guide groove is formed on the fixed support, and the transmission rod passes through the guide groove to be linked with the sliding assembly. Furthermore, the application also provides that the fixing support comprises a main board and side support legs, wherein the side support legs are used for clamping with the circuit breaker shell, and the guide groove is formed in the main board. Further, the application also provides that the side support leg comprises a first support leg, a second support leg, a third support leg and a f