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CN-122000230-A - Operating mechanism and load switch

CN122000230ACN 122000230 ACN122000230 ACN 122000230ACN-122000230-A

Abstract

The invention provides an operating mechanism and a load switch, and relates to the technical field of load switches. In the operating mechanism, a main shaft is used for executing switching-on and switching-off through an executing mechanism, and a poking block protruding along the radial direction is arranged on the main shaft. The transmission assembly is in transmission connection with the driving device. The clutch structure comprises a clutch piece, a pusher dog and an elastic piece, wherein the pusher dog is rotatably connected to the transmission assembly, the pusher dog is provided with a first end and a second end which are opposite, the pusher dog is used for abutting against the pusher dog to drive the spindle to rotate along with the transmission assembly until the first end abuts against the pusher dog, the elastic piece is connected with the pusher dog and is used for providing elastic force for the pusher dog when the first end is far away from the spindle, the clutch piece is used for being fixed on the bearing main body, and the clutch piece is used for abutting against the second end to enable the pusher dog to rotate relative to the transmission assembly until the first end is lifted to pass over the pusher dog. The load switch provided by the invention adopts the operating mechanism. The operating mechanism and the load switch provided by the invention can solve the technical problem that the manual operation is easy to cause failure of the electric control operation.

Inventors

  • JIA BO
  • WANG ZHUXING

Assignees

  • 成都宣扬电器有限公司

Dates

Publication Date
20260508
Application Date
20260409

Claims (10)

  1. 1. An operating mechanism (13), characterized by comprising: The main shaft (100) is in transmission connection with an actuating mechanism (12) of the load switch (10), the main shaft (100) is also used for extending out of the load switch (10) for manual operation, the actuating mechanism (12) is used for executing switching-on and switching-off, and a shifting block (101) protruding along the radial direction is arranged on the main shaft (100); The driving device (200) is used for being fixedly connected to the bearing main body (11) of the load switch (10); The transmission assembly (300) is in transmission connection with the driving device (200); the clutch structure (400) comprises a clutch member (410), a pusher dog (420) and an elastic member (430), wherein the pusher dog (420) is rotatably connected to the transmission assembly (300), the pusher dog (420) is provided with a first end (421) and a second end (422) which are opposite, the pusher dog (420) is used for following the transmission assembly (300) to rotate to the first end (421) to abut against the pusher dog (101) so as to drive the spindle (100) to rotate, the elastic member (430) is connected with the pusher dog (420) and is used for providing elastic force for the pusher dog (420) when the first end (421) is far away from the spindle (100), the clutch member (410) is used for being fixed on the bearing body (11) and is located on a path of the second end (422) following the transmission assembly (300), and the clutch member (410) is used for abutting against the second end (422) so as to enable the pusher dog (420) to rotate relative to the transmission assembly (300) to move to the first end (421) beyond the first end (421).
  2. 2. The operating mechanism (13) according to claim 1, wherein the number of the pulling claws (420) and the number of the elastic members (430) are two, the pulling claws (420) are rotatably connected to the transmission assembly (300), the pulling claws (420) are respectively positioned at two opposite ends of the pulling block (101) in the circumferential direction of the main shaft (100), and the elastic members (430) are connected with the pulling claws (420) in a one-to-one correspondence.
  3. 3. Operating mechanism (13) according to claim 2, characterized in that the distance between two fingers (420) in the circumferential direction of the spindle (100) is greater than the length of the dial (101).
  4. 4. The operating mechanism (13) according to claim 1, wherein the transmission assembly (300) comprises an output gear (310) and a transmission gear (320), the output gear (310) is connected to an output shaft of the driving device (200), the transmission gear (320) is sleeved on the main shaft (100) and can rotate freely relative to the main shaft (100), the output gear (310) is meshed with the transmission gear (320), and the pusher dog (420) and the elastic piece (430) are connected to the transmission gear (320).
  5. 5. The operating mechanism (13) according to claim 1, wherein the finger (420) forms a contact point when in contact with the spindle (100), the radial direction of the spindle (100) passing the contact point being arranged at an angle to the direction of extension of the finger (420).
  6. 6. Operating mechanism (13) according to claim 1, characterized in that the side of the second end (422) remote from the spindle (100) is provided with rounded corners.
  7. 7. The operating mechanism (13) according to claim 1, wherein the clutch member (410) comprises a clutch portion (412) and a fixing portion (411), the fixing portion (411) is used for being fixed on the bearing body (11), a cavity (4111) is formed in the center of the fixing portion (411), the shifting block (101), the shifting claw (420) and the elastic member (430) are located inside the cavity (4111), and the clutch portion (412) is protruding to the inner wall of the cavity (4111).
  8. 8. The operating mechanism (13) according to claim 7, wherein both ends of the clutch portion (412) form guide slopes (401) in the circumferential direction of the spindle (100).
  9. 9. Operating mechanism (13) according to any of claims 1-8, characterized in that the dial (101) has two extreme positions in its rotational travel, that the actuator (12) completes the closing or opening of the brake when the dial (101) is in the extreme positions, and that the second end (422) of the dial (420) abuts against the clutch member (410) and lifts the first end (421) out of the dial (101) when the dial (101) is pushed by the dial (420) to be in one of the extreme positions.
  10. 10. Load switch (10) comprising an operating mechanism (13) according to any one of claims 1-9.

Description

Operating mechanism and load switch Technical Field The invention relates to the technical field of load switches, in particular to an operating mechanism and a load switch. Background The circuit breaker, the load switch and the isolating switch are three common switching devices in the power system, and the three switching devices are respectively stressed in functions, structures and application scenes, but are matched with each other, so that the safe operation of the circuit is ensured. Briefly, ‌ isolation switches are responsible for "isolation", load switches are responsible for "on-off", and circuit breakers are responsible for "protection" ‌. In the prior art, more and more load switches can have the functions of manual operation and electric control operation simultaneously, then, under the condition that two operation modes are simultaneously provided, the manual operation is easy to excessively operate, so that an operation mechanism of the electric control operation is influenced, the operation mechanism is easy to lose control, the operation mechanism is damaged, and the electric control operation is invalid. Disclosure of Invention The invention solves the technical problem of how to improve the technical problem that the manual operation in the prior art easily causes failure of the electric control operation. Embodiments of the invention may be implemented as follows: The invention provides an operating mechanism, comprising: the main shaft is in transmission connection with an actuating mechanism of the load switch, and is also used for extending out of the load switch for manual operation, and the actuating mechanism is used for executing switching-on and switching-off; the driving device is used for being fixedly connected to the bearing main body of the load switch; The transmission assembly is in transmission connection with the driving device; The clutch structure comprises a clutch piece, a pusher dog and an elastic piece, wherein the pusher dog is rotatably connected to the transmission assembly, the pusher dog is provided with a first end and a second end which are opposite, the pusher dog is used for following the transmission assembly to rotate until the first end abuts against the shifting block to drive the spindle to rotate, the elastic piece is connected with the pusher dog and used for providing elastic force for the pusher dog when the first end is far away from the spindle, the clutch piece is used for being fixed on the bearing main body and located on a path of the second end following the transmission assembly, and the clutch piece is used for abutting against the second end to enable the pusher dog to rotate relative to the transmission assembly until the first end is lifted to pass over the shifting block. Optionally, the number of the pulling claws and the number of the elastic pieces are two, the two pulling claws are rotatably connected to the transmission assembly, the two pulling claws are respectively positioned at two opposite ends of the pulling block in the circumferential direction of the main shaft, and the two elastic pieces are connected with the two pulling claws in a one-to-one correspondence manner. Optionally, in the circumferential direction of the spindle, a distance between two of the fingers is greater than a length of the dial block. Optionally, the transmission assembly comprises an output gear and a transmission gear, the output gear is connected to an output shaft of the driving device, the transmission gear is sleeved on the main shaft and can rotate freely relative to the main shaft, the output gear is meshed with the transmission gear, and the pusher dog and the elastic piece are connected to the transmission gear. Optionally, the finger contacts with the main shaft to form a contact point, and a radial direction of the main shaft passing through the contact point and an extending direction of the finger form an included angle. Optionally, a rounded corner is provided on a side of the second end remote from the spindle. Optionally, the clutch member comprises a clutch portion and a fixing portion, the fixing portion is used for being fixed on the bearing main body, a cavity is formed in the center of the fixing portion, the shifting block, the shifting claw and the elastic member are located in the cavity, and the clutch portion is arranged on the inner wall of the cavity in a protruding mode. Alternatively, in the circumferential direction of the main shaft, both ends of the clutch portion form guide slopes. Optionally, the shifting block has two limit positions in the rotation stroke, when the shifting block is in the limit positions, the actuating mechanism completes switching on or switching off, and when the shifting block is pushed by the shifting claw to be in one of the limit positions, the second end of the shifting claw abuts against the clutch piece and enables the first end to be lifted to be separated from the shifting block.