Electric operating mechanism capable of being manually operated outside cabinet

Abstract

The utility model relates to an electric operating mechanism capable of being manually operated outside a cabinet, which comprises a mechanism frame, a sliding block, an electric operating assembly and a manual operating assembly, the manual operation assembly comprises a manual operation shaft rotationally arranged on the mechanism frame, a cam arranged on the manual operation shaft in a linkage mode, a pulley arranged on the cam in a linkage mode, two transmission plates symmetrically arranged on a sliding block, and stroke sliding plates arranged on the two transmission plates. A sliding hole matched with the pulley is formed in the stroke sliding plate, the pulley moves along with the transmission plate and reciprocates in the sliding hole, and linkage matching of the stroke sliding plate and the pulley is formed. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly, safety and reliability, and can be manually operated outside the cabinet.

Description

Technical Field

[0001] The utility model relates to an electric operating mechanism, in particular to an electric operating mechanism that can be manually operated outside the switch cabinet. Background Art

[0002] A circuit breaker is a distribution electrical appliance used in a power grid, which can connect, carry and break the current under normal circuit conditions, and can also connect, carry for a certain time and break the current under specified abnormal conditions (such as overload, short circuit, undervoltage and single-phase grounding fault). An electric operating mechanism is a special accessory for a molded case circuit breaker. After being combined with the circuit breaker, it can remotely and electrically close, open and reclutch the circuit breaker to realize the centralized and automatic control of the power transmission and distribution network. With the development of the power industry, the operating mechanism of the molded case circuit breaker has gradually become the mainstream of the current development, and the design is developing towards miniaturization and intelligence. When the existing electric operating mechanism is manually operated, the manual operating shaft needs to rotate 360° to realize manual operation, and it is impossible to operate the electric operating mechanism outside the switch cabinet. Moreover, the electric operating mechanism also has the defects of complex structural design, inconvenient assembly and low reliability. Summary of the Invention

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide an electric operating mechanism that can be manually operated outside the switch cabinet, which has a simple structure, stable and reliable performance, convenient assembly, safety and reliability.

[0004] To achieve the above purpose, the utility model adopts an electric operating mechanism that can be manually operated outside the switch cabinet, which includes a mechanism frame, a slider slidably arranged on the mechanism frame and used to drive the circuit breaker to perform opening and closing operations, an electric operating component arranged on the mechanism frame and used to drive the slider to perform opening and closing operations, and a manual operating component arranged on the mechanism frame and used to drive the slider to perform opening and closing operations. The manual operating component includes a manual operating shaft rotatably arranged on the mechanism frame, a cam linked to the manual operating shaft, a pulley linked to the cam, two transmission plates symmetrically arranged on the slider, and a travel slide plate arranged on the two transmission plates. A sliding hole matched with the pulley is arranged on the travel slide plate. The pulley moves with the transmission plate and reciprocates in the sliding hole, and forms a linkage cooperation between the travel slide plate and the pulley.

[0005] The beneficial effects of the above structure are: the manual operation component adopts a modular structure design, which is conducive to the modular assembly of the manual operation component and the mechanism frame, and the manual operation component and the electric operation component are independently arranged on the mechanism frame, and the working reliability is higher. The manual operation shaft drives the two transmission plates through the cam to drive the slider to perform the opening and closing action. The manual operation shaft rotates forward and reverse 90° to realize the opening and closing operation of the manual operation component, so that the manual operation component can meet the operation outside the switch cabinet, and the operation is more convenient. Therefore, the electric operation mechanism has the advantages of simple structure, stable and reliable performance, convenient assembly, safety and reliability, and manual operation outside the cabinet.

[0006] In particular, a sleeve is provided on one end of the manual operating shaft, an operating hole is provided on the other end of the manual operating shaft, a retaining spring is provided on the manual operating shaft to abut against one end of the sleeve, the other end of the sleeve abuts against the cam, a positioning hole is provided on the mechanism frame to match the sleeve, and the sleeve is rotatably arranged in the positioning hole. The manual operating shaft is rotatably connected to the mechanism frame through the sleeve, thereby ensuring that the manual operating shaft can reliably rotate on the mechanism frame, which is conducive to improving the working reliability of the electric operating mechanism.

[0007] In particular, the two ends of the two transmission plates are respectively bent vertically and formed with fixing parts, and the fixing parts of the two transmission plates are respectively connected to the travel slide plate and the slider through fasteners. The two transmission plates are connected to the travel slide plate and the slider through fasteners, thereby facilitating the assembly of the manual operation assembly and achieving higher assembly efficiency.

[0008] In particular, a partition is provided on the mechanism frame to separate the electric operating assembly from the manual operating assembly. The partition can separate the electric operating assembly from the manual operating assembly, thereby facilitating modular assembly of the electric operating assembly, the manual operating assembly and the mechanism frame, and avoiding mutual interference between the electric operating assembly and the manual operating assembly, thereby facilitating the working reliability of the electric operating mechanism.

[0009] In particular, the electric operation assembly includes a motor disposed transversely in the mechanism frame, a bevel gear disposed on the rotating shaft of the motor, a driving gear rotatably disposed in the mechanism frame, a transmission gear set meshing between the bevel gear and the driving gear, a transmission cam linked with the driving gear, and a driving pulley linked with the transmission cam, the slider is provided with a sliding groove matched with the driving pulley, the driving pulley is inserted in the sliding groove, and the driving pulley moves with the transmission cam and slides back and forth in the sliding groove, and forms a linkage between the slider and the driving pulley. The motor of the electric operation assembly is arranged transversely in the mechanism frame, thereby reducing the thickness of the entire electric operation mechanism, which is conducive to reducing the volume of the entire electric operation mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is the perspective view of the embodiment of the present utility model.

[0011] Figure 2 This is the cross-sectional view of the embodiment of the present utility model.

[0012] Figure 3 This is the internal structure diagram of the embodiment of the present utility model. Specific embodiments

[0013] As Figures 1 to 3 shown, the embodiment of the present utility model is an electric operating mechanism that can be manually operated outside the cabinet, including a mechanism frame 10, a slider 11 slidably arranged on the mechanism frame 10 and used to drive the circuit breaker to perform opening and closing operations, an electric operating component 20 arranged on the mechanism frame 10 and used to drive the slider 11 to perform opening and closing actions, and a manual operating component 30 arranged on the mechanism frame 10 and used to drive the slider 11 to perform opening and closing actions. The manual operating component 30 includes a manual operating shaft 31 rotatably arranged on the mechanism frame 10, a cam 32 linked to the manual operating shaft 31, a pulley 33 linked to the cam 32, two transmission plates 34 symmetrically arranged on the slider 11, and a travel slide plate 35 arranged on the two transmission plates 34. A sliding hole 351 matching with the pulley 33 is arranged on the travel slide plate 35. The pulley 33 moves reciprocally in the sliding hole 351 along with the movement of the transmission plate 34, and a linkage cooperation between the travel slide plate 35 and the pulley 33 is formed. A bushing 36 is arranged at one end of the manual operating shaft 31, an operating hole 311 is arranged at the other end of the manual operating shaft 31, a snap spring 37 is arranged on the manual operating shaft 36 and abuts against one end of the bushing 36, the other end of the bushing 36 abuts against the cam 32, a positioning hole 101 matching with the bushing 36 is arranged on the mechanism frame 10, and the bushing 36 is rotatably arranged in the positioning hole 101. The manual operating shaft is rotatably connected to the mechanism frame through the bushing, so as to ensure that the manual operating shaft can rotate reliably on the mechanism frame, which is beneficial to improving the working reliability of the electric operating mechanism. The two ends of the two transmission plates 34 are respectively vertically bent to form fixing parts 341, and the fixing parts 341 of the two transmission plates 34 are respectively connected to the travel slide plate 35 and the slider 11 through fasteners. The two transmission plates are connected to the travel slide plate and the slider through fasteners, which is convenient for the assembly of the manual operating component and has higher assembly efficiency.

[0014] As Figure 2 、 3As shown in the figure, a partition 12 is provided on the mechanism frame 10 and separates the electric operation component 20 from the manual operation component 30. The partition can separate the electric operation component from the manual operation component, which is convenient for the modular assembly of the electric operation component, the manual operation component and the mechanism frame, and can avoid the mutual interference between the electric operation component and the manual operation component, which is beneficial to improving the working reliability of the electric operation mechanism. The electric operation component 20 includes a motor 21 horizontally arranged in the mechanism frame 10, a bevel gear 22 arranged on the rotating shaft of the motor 21, a driving gear 23 rotatably arranged in the mechanism frame 10, a transmission gear set 24 meshed between the bevel gear 22 and the driving gear 23, a transmission cam 25 linked with the driving gear 23, and a driving pulley 26 linked to the transmission cam 25. A sliding groove 111 is provided on the slider 11 and is matched with the driving pulley 26. The driving pulley 26 is inserted into the sliding groove 111, and the driving pulley 26 moves with the transmission cam 25 and reciprocates in the sliding groove 111, forming a linkage between the slider 11 and the driving pulley 26. The motor of the electric operation component is horizontally arranged in the mechanism frame, which reduces the thickness of the entire electric operation mechanism and is beneficial to reducing the volume of the entire electric operation mechanism.

[0015] The manual operation component adopts a modular structure design, which is beneficial to the modular assembly of the manual operation component and the mechanism frame. The manual operation component and the electric operation component are respectively and independently arranged on the mechanism frame, and the working reliability is higher. The manual operation shaft drives two transmission plates through a cam to drive the slider to perform opening and closing actions. When the manual operation shaft rotates 90° forward or backward, the opening and closing operations of the manual operation component can be realized. Therefore, the manual operation component can meet the off-cabinet operation, and the operation is more convenient. Therefore, the electric operation mechanism has the advantages of simple structure, stable and reliable performance, convenient assembly, safe and reliable, and off-cabinet manual operation.

Claims

1. An electric operating mechanism that can be manually operated outside the cabinet, comprising a mechanism frame, a slider slidably arranged on the mechanism frame and used to drive the circuit breaker to perform opening and closing operations, an electric operating component arranged on the mechanism frame and used to drive the slider to perform opening and closing actions, and a manual operating component arranged on the mechanism frame and used to drive the slider to perform opening and closing actions, characterized in that: The described manual operation component includes a manual operation shaft rotatably arranged on the mechanism frame, a cam linked to the manual operation shaft, a pulley linked to the cam, two transmission plates symmetrically arranged on the slider, and a stroke slide plate arranged on the two transmission plates. A sliding hole matching the pulley is arranged on the stroke slide plate. The pulley moves with the transmission plate and reciprocates in the sliding hole, forming a linkage cooperation between the stroke slide plate and the pulley.

2. The electric operating mechanism capable of being manually operated outside the cabinet according to claim 1, wherein: A shaft sleeve is arranged at one end of the manual operation shaft. An operation hole is arranged at the other end of the manual operation shaft. A circlip is arranged on the manual operation shaft and abuts against one end of the shaft sleeve. The other end of the shaft sleeve abuts against the cam. A positioning hole matching the shaft sleeve is arranged on the mechanism frame. The shaft sleeve is rotatably arranged in the positioning hole.

3. The electric operating mechanism capable of being manually operated outside the cabinet according to claim 1 or 2, characterized in that: Both ends of the two transmission plates are vertically bent respectively to form fixing parts. The fixing parts of the two transmission plates are respectively connected to the stroke slide plate and the slider through fasteners.

4. The electric operating mechanism capable of being manually operated outside the cabinet according to claim 1 or 2, characterized in that: A partition plate separating the electric operation component and the manual operation component is arranged on the mechanism frame.

5. The electric operating mechanism capable of being manually operated outside the cabinet according to claim 1 or 2, characterized in that: The described electric operation component includes a motor horizontally arranged in the mechanism frame, a bevel gear arranged on the rotating shaft of the motor, a driving gear rotatably arranged in the mechanism frame, a transmission gear set meshing between the bevel gear and the driving gear, a transmission cam linked to the driving gear, and a driving pulley linked to the transmission cam. A sliding groove matching the driving pulley is arranged on the slider. The driving pulley is inserted into the sliding groove. The driving pulley moves with the transmission cam and reciprocates in the sliding groove, forming a linkage cooperation between the slider and the driving pulley.

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