Manual driving device for electrically operating breaker drawer

Abstract

A manual driving device for electrically operating a breaker drawer comprises a shell, a manual driving mechanism and a clutch mechanism linked with the manual driving mechanism, the manual driving mechanism comprises a motor and a first gear connected with the motor, and the clutch mechanism comprises a clutch and a second gear connected with the clutch. The driving mechanism and the clutch mechanism are in meshed connection through the first gear and the second gear, the structures of the manual driving mechanism and the clutch mechanism are improved, the two parts are integrated into one part, and the first gear and the second gear are protected by the shell, so that the complexity of the manual function of installing the breaker drawer can be reduced, and the installation efficiency of the breaker drawer is improved. And when the clutch mechanism and the manual driving mechanism are installed by personnel, the installation positions and different parts do not need to be distinguished, the installation and disassembly efficiency is improved through integrated arrangement, and the production cost and the manufacturing cost can be reduced.

Description

Technical Field

[0001] The utility model relates to a manual driving device for an electrically operated circuit breaker drawer, belonging to the field of circuit breakers. Background Art

[0002] Universal circuit breakers are also called frame circuit breakers. They can connect, carry and disconnect currents under normal circuit conditions, and can also disconnect fault currents under specified abnormal circuit conditions. In terms of the application of universal circuit breakers, they are divided into fixed circuit breakers and withdrawable circuit breakers. Since withdrawable circuit breakers are installed in a drawer and can be moved in the drawer, they are convenient for detection and maintenance, and are therefore widely used.

[0003] The existing withdrawable circuit breaker requires two components, a clutch and a manual drive motor, to work for the manual function. When the user actually installs, the installation positions of the clutch and the motor are relatively far apart. For example, the utility model with publication number CN216530191U discloses a circuit breaker drawer seat compatible with electric and manual operations, including a base frame and an indicator seat, an indicator rod and a screw rod installed thereon. The base frame is also provided with a motor and a first micro switch on both sides of the screw rod, respectively. The lower rod body of the screw rod is provided with a reduction gear set through a clamping plate. The output shaft of the motor is connected to the screw rod through the reduction gear set. It is easy to cause problems such as confusion of installation components and wrong installation positions, resulting in the clutch and the motor being unable to realize manual functions and requiring repeated adjustments, which affects normal installation and use. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a manual drive device for an electrically operated circuit breaker drawer.

[0005] A manual drive device for an electrically operated circuit breaker drawer comprises a housing, a manual drive mechanism and a clutch mechanism linked to the manual drive mechanism, wherein the manual drive mechanism comprises a motor and a first gear connected to the motor, the clutch mechanism comprises a clutch and a second gear connected to the clutch, the drive mechanism and the clutch mechanism are meshed and connected via the first gear and the second gear, and by improving the structures of the manual drive mechanism and the clutch mechanism, the two components are integrated into one component, and the first gear and the second gear are protected by the housing, so that the complexity of installing the manual function of the circuit breaker drawer can be reduced, so that personnel do not need to distinguish between installation positions and different components when installing the clutch mechanism and the manual drive mechanism, and the integrated setting improves the installation and disassembly efficiency, which is conducive to reducing production costs and manufacturing costs.

[0006] Furthermore, the first gear and the second gear are both arranged in the shell, and the first gear is meshingly connected with a manual wheel for inserting the handle to manually rotate. The first gear and the second gear are protected in the shell and can be directly installed during installation without the need for multiple assembly. The shell can also avoid the influence of the external environment on internal components, ensuring normal use. The manual wheel is used for personnel to insert the handle to use the manual function.

[0007] Preferably, a slot is provided on the shell, and a socket matching the handle is provided on the manual wheel. The slot is located in front of the socket, and the slot enables the socket on the manual wheel inside the shell to be displayed to the outside, making it easy for personnel to insert and drive.

[0008] Furthermore, a locking structure is installed in the shell, and the locking structure includes a micro switch and an operating rod slidably installed in the shell, one end of the operating rod extends to the socket, and when the handle is inserted into the socket, the operating rod is pushed to trigger the micro switch, and the micro switch is used to control the electric drive mechanism of the circuit breaker drawer to be in a locked state. The setting of the locking structure can increase the manual locking function. When the handle is inserted into the manual wheel, the operating rod triggers the micro switch to send an electrical signal to the electric drive mechanism of the circuit breaker drawer, thereby preventing personnel from accidentally touching the electric drive mechanism when operating the manual drive mechanism, causing safety problems.

[0009] Furthermore, a fixing pin is provided in the shell, and a sliding groove is provided on the operating rod. The operating rod is slidably connected to the fixing pin through the sliding groove. The fixing pin and the sliding groove cooperate to enable the operating rod to slide in the shell, forming a locking function.

[0010] Furthermore, the end of the operating rod is located in front of the socket. When the manual function is not in use, the operating rod can block the socket on the manual wheel, which also has the function of preventing accidental touch.

[0011] Preferably, the manual drive mechanism includes a first rotating shaft connected to the motor, the first gear is arranged on the first rotating shaft, and the clutch mechanism includes a second rotating shaft, and the second gear is arranged on the second rotating shaft.

[0012] The beneficial effects of the utility model are as follows: by improving the structure of the manual drive mechanism and the clutch mechanism, the two components are integrated into one component, and the first gear and the second gear are protected by a shell, the complexity of installing the manual function of the circuit breaker drawer can be reduced, so that personnel do not need to distinguish between installation positions and different components when installing the clutch mechanism and the manual drive mechanism. The integrated setting improves the installation and disassembly efficiency, which is conducive to reducing production costs and manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0014] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the utility model with some structures removed;

[0016] Figure 3 It is a structural schematic diagram of another perspective of the utility model;

[0017] In the figure, 1. housing; 11. slot; 12. fixing pin; 2. manual drive mechanism; 21. motor; 22. first rotating shaft; 23. first gear; 24. manual wheel; 25. jack; 3. clutch mechanism; 31. clutch; 32. second rotating shaft; 33. second gear; 4. locking structure; 41. micro switch; 42. operating lever; 43. sliding slot. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0019] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0020] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0021] like Figure 1-3As shown, an embodiment of a manual drive device of an electrically operated circuit breaker drawer of the utility model is shown, comprising a housing 1, a manual drive mechanism 2 and a clutch mechanism 3 linked to the manual drive mechanism 2, wherein the manual drive mechanism 2 comprises a motor 21 and a first gear 23 connected to the motor 21, and the clutch mechanism 3 comprises a clutch 31 and a second gear 33 connected to the clutch 31, wherein the drive mechanism and the clutch mechanism 3 are meshed and connected through the first gear 23 and the second gear 33, and by improving the structures of the manual drive mechanism 2 and the clutch mechanism 3, the two components are integrated into one component, and the first gear 23 and the second gear 33 are protected by the housing 1, so that the complexity of installing the manual function of the circuit breaker drawer can be reduced, so that personnel do not need to distinguish between installation positions and different components when installing the clutch mechanism 3 and the manual drive mechanism 2, and the integrated setting improves the installation and disassembly efficiency, which is conducive to reducing the production cost and manufacturing cost.

[0022] The first gear 23 and the second gear 33 are both arranged in the shell 1. The first gear 23 is meshedly connected with a manual wheel 24 for inserting the handle to manually rotate. The first gear 23 and the second gear 33 are protected in the shell 1 and can be directly installed during installation without multiple assembly. The shell 1 can also avoid the influence of the external environment on the internal components to ensure normal use. The manual wheel 24 is used for people to insert the handle to use the manual function.

[0023] The shell 1 is provided with a slot 11, and the manual wheel 24 is provided with a socket 25 matching the handle. The slot 11 is located in front of the socket 25. The slot 11 can make the socket 25 on the manual wheel 24 inside the shell 1 visible to the outside, making it easy for people to insert and drive.

[0024] A locking structure 4 is installed in the housing 1, and the locking structure 4 includes a micro switch 41 and an operating rod 42 slidably installed in the housing 1. One end of the operating rod 42 extends to the jack 25. When the handle is inserted into the jack 25, the operating rod 42 is pushed to trigger the micro switch 41. The micro switch 41 is used to control the electric drive mechanism of the circuit breaker drawer to be in a locked state. The setting of the locking structure 4 can increase the manual locking function. When the handle is inserted into the manual wheel 24, the operating rod 42 triggers the micro switch 41 to send an electrical signal to the electric drive mechanism of the circuit breaker drawer, so as to avoid accidental touching of the electric drive mechanism when operating the manual drive mechanism 2, thereby causing safety problems.

[0025] A fixing pin 12 is provided in the housing 1, and a sliding groove 43 is provided on the operating rod 42. The operating rod 42 is slidably connected to the fixing pin 12 through the sliding groove 43. The fixing pin 12 and the sliding groove 43 cooperate to enable the operating rod 42 to slide in the housing 1, forming a locking function.

[0026] The end of the operating rod 42 is located in front of the socket 25. When the manual function is not in use, the operating rod 42 can block the socket 25 on the manual wheel 24, and also has the function of preventing accidental touch.

[0027] The manual drive mechanism 2 includes a first rotating shaft 22 connected to the motor 21 , the first gear 23 is disposed on the first rotating shaft 22 , and the clutch mechanism 3 includes a second rotating shaft 32 , the second gear 33 is disposed on the second rotating shaft 32 .

[0028] The structure of the clutch can refer to the Chinese utility model with publication number CN103244573B.

[0029] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A manual drive device for an electrically operated circuit breaker drawer, characterized in that: It includes a shell, a manual driving mechanism and a clutch mechanism linked to the manual driving mechanism, the manual driving mechanism includes a motor and a first gear connected to the motor, the clutch mechanism includes a clutch and a second gear connected to the clutch, and the driving mechanism and the clutch mechanism are meshed and connected through the first gear and the second gear.

2. The manual drive device for the electrically operated circuit breaker drawer according to claim 1, characterized in that: The first gear and the second gear are both arranged in the housing, and the first gear is meshedly connected with a manual wheel for inserting a handle and manually rotating.

3. The manual drive device for the electrically operated circuit breaker drawer according to claim 2, characterized in that: The housing is provided with a slot, the manual wheel is provided with a socket matching the handle, and the slot is located in front of the socket.

4. The manual drive device for the electrically operated circuit breaker drawer according to claim 1, characterized in that: A locking structure is installed in the shell, and the locking structure includes a micro switch and an operating rod slidably installed in the shell. One end of the operating rod extends to the socket. When a handle is inserted into the socket, the operating rod is pushed to trigger the micro switch. The micro switch is used to control the electric drive mechanism of the circuit breaker drawer to be in a locked state.

5. The manual drive device for the electrically operated circuit breaker drawer according to claim 4, characterized in that: A fixing pin is arranged in the shell body, a sliding groove is arranged on the operating rod, and the operating rod is slidably connected with the fixing pin through the sliding groove.

6. The manual drive device for the electrically operated circuit breaker drawer according to claim 4, characterized in that: The end of the operating rod is located in front of the insertion hole.

7. The manual drive device for an electrically operated circuit breaker drawer according to claim 1, characterized in that: The manual drive mechanism comprises a first rotating shaft connected to the motor, the first gear is arranged on the first rotating shaft, the clutch mechanism comprises a second rotating shaft, and the second gear is arranged on the second rotating shaft.

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