Operating mechanism of circuit breaker handle

Abstract

The utility model discloses an operating mechanism of a circuit breaker handle, which comprises a support, a guide rail fixedly installed on the inner side of the support, a sliding block slidably arranged on the inner side of the support, a rotating assembly rotatably installed on the support, the rotating assembly is in transmission connection with the sliding block, and the rotating motion of the rotating assembly is converted into the linear motion of the sliding block along the guide rail. The sliding block is formed by integrally bending a sheet metal part, the sliding block is provided with a through hole used for containing an operation handle of the circuit breaker, the edge of the through hole is bent to form two driving parts, and when the sliding block moves along the guide rail in a reciprocating mode, the two driving parts drive the operation handle of the circuit breaker to achieve opening and closing operation of the circuit breaker. The operating mechanism of the circuit breaker handle has the advantages of few parts and low assembly difficulty.

Description

Technical Field

[0001] This utility model relates to the field of circuit breakers, specifically to an operating mechanism for a circuit breaker handle. Background Technology

[0002] Existing circuit breakers typically feature a control handle protruding from the breaker housing. Controlling the opening and closing of the circuit breaker is usually achieved by actuating this handle. One current circuit breaker control mechanism uses a slider with two drive rollers for actuating the control handle. This mechanism has numerous components, making material management difficult. Furthermore, installing the drive rollers requires wrenches or screwdrivers for tightening, resulting in inconvenient assembly, low assembly efficiency, and a risk of parts loosening. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an operating mechanism for a circuit breaker handle, which mainly solves the problems of numerous parts and low assembly efficiency in existing opening and closing operating mechanisms.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] An operating mechanism for a circuit breaker handle includes a bracket, a guide rail fixedly mounted on the inner side of the bracket, a slider slidably disposed on the inner side of the bracket, a rotating assembly rotatably mounted on the bracket, the rotating assembly being connected to the slider in a transmission connection, and the rotational motion of the rotating assembly being converted into linear motion of the slider along the guide rail.

[0006] The slider is integrally bent from sheet metal. The slider has a through hole for accommodating the operating handle of the circuit breaker. The edge of the through hole is bent to form two driving parts. When the slider moves back and forth along the guide rail, the two driving parts drive the operating handle of the circuit breaker to realize the opening and closing operation of the circuit breaker.

[0007] In one preferred embodiment, the bracket includes a main body plate and a limiting plate connected to the inner side of the main body plate. A guide rail is fixed on the main body plate, and a slider is located between the limiting plate and the guide rail. The slider includes a drive plate and two side plates that are perpendicularly connected to one side of the drive plate and are parallel to each other. The drive plate is spaced apart from the main body plate. A through hole and two drive parts are provided on the drive plate. The two side plates slide in contact with the guide rail and the limiting plate respectively to limit the sliding trajectory of the slider. A rotating assembly is rotatably mounted on the main body plate and located between the two side plates.

[0008] In one preferred embodiment, the two drive units are located on the side of the drive plate closer to the main body plate.

[0009] In one preferred embodiment, the rotating assembly includes a gear and a rotating part. The gear is located between the two side plates of the slider, and the rotating part is rotatably mounted on the main body plate. One end of the rotating part is located inside the main body plate and is fixedly connected to the gear, while the other end is located outside the main body plate.

[0010] One of the side plates has multiple spaced toothed holes that can mesh with gears. When the rotating part rotates, the slider moves along the guide rail by meshing the gears with the corresponding toothed holes.

[0011] In one preferred embodiment, the toothed hole is located on the side plate that contacts the guide rail, the limiting plate is provided with a groove, and the outer side of the side plate that contacts the limiting plate is provided with a protrusion. The protrusion is slidably disposed in the groove, and the protrusion and the groove cooperate to limit the movement stroke of the slider.

[0012] In one preferred embodiment, the bracket is integrally bent from sheet metal, and an auxiliary plate is vertically connected to the inner side of the main plate. Several mounting parts parallel to the main plate are connected to the side of the auxiliary plate near the limiting plate and the side of the limiting plate near the auxiliary plate. Each mounting part is provided with a mounting hole, and a clearance hole is provided on the main plate corresponding to each mounting hole.

[0013] In one preferred embodiment, a return spring is mounted on the guide rail, with one end of the return spring connected to the slider. The return spring is used to reset the slider.

[0014] The operating mechanism of the circuit breaker handle provided by this utility model has the following advantages:

[0015] The slider is integrally bent from sheet metal. It has a through hole for accommodating the operating handle of the circuit breaker. The edge of the through hole is bent to form two driving parts. Since the slider is integrally formed from sheet metal, the assembly steps and assembly difficulty are simplified, and the assembly efficiency is improved. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the operating mechanism of the circuit breaker handle of this utility model;

[0017] Figure 2 yes Figure 1 A bottom view of the operating mechanism of the circuit breaker handle;

[0018] Figure 3 yes Figure 1 A front view of the operating mechanism of the circuit breaker handle. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] like Figures 1 to 3 As shown, this embodiment discloses an operating mechanism for a circuit breaker (e.g., a molded case circuit breaker) handle, including a bracket 1, a guide rail 2 fixedly mounted on the inner side of the bracket 1, a slider 3 slidably disposed on the inner side of the bracket 1, and a rotating assembly rotatably mounted on the bracket 1. The rotating assembly is connected to the slider 3 in a transmission manner, and the rotational motion of the rotating assembly is converted into linear motion of the slider 3 along the guide rail 2. Specifically, the slider 3 is integrally bent from a sheet metal part, and the slider 3 has a through hole 4 for accommodating the circuit breaker's operating handle. The edge of the through hole 4 is bent to form two driving parts 5. When the slider 3 reciprocates along the guide rail 2, the two driving parts 5 drive the circuit breaker's operating handle to realize the circuit breaker's opening and closing operations. Since the slider 3 is integrally formed from a sheet metal part, the installation steps of the handle operating mechanism are simplified, making the assembly of the handle operating mechanism quicker and more convenient.

[0022] Preferably, the bracket 1 includes a main plate 11 and a limiting plate 12 connected to the inner side of the main plate 11. A guide rail 2 is fixed to the main plate 11. A slider 3 is located between the limiting plate 12 and the guide rail 2. The slider 3 includes a drive plate 31 and two side plates 32 perpendicularly connected to one side of the drive plate 31 and parallel to each other. The drive plate 31 is spaced apart from the main plate 11. A through hole 4 and two drive units are provided on the drive plate 31. The two side plates 32 respectively slide in contact with the guide rail 2 and the limiting plate 12 to limit the sliding trajectory of the slider 3. A rotating assembly is rotatably mounted on the main plate 11 and located between the two side plates 32. Because the rotating assembly is mounted between the two side plates 32 of the slider 3, it does not occupy the width of the bracket 1, which is beneficial for miniaturization of the bracket 1 and thus saves manufacturing costs.

[0023] Preferably, the two drive units 5 are located on the side of the drive plate 31 closer to the main body plate 11, which avoids increasing the thickness of the slider 3 and is conducive to miniaturization of the handle operation mechanism.

[0024] In this embodiment, the rotating assembly includes a gear 6 and a rotating part 7. The gear 6 is located between the two side plates 32 of the slider 3. The rotating part 7 is rotatably mounted on the main body plate 11. One end of the rotating part 7 is located inside the main body plate 11 and fixedly connected to the gear 6, while the other end is located outside the main body plate 11. One of the side plates 32 has multiple spaced toothed holes 8 that can mesh with the gear 6. Through the meshing of the gear 6 with the corresponding toothed holes 8, the rotating part 7 drives the slider 3 to move along the guide rail 2 when it rotates. In other embodiments, the rotating assembly is not limited to this. For example, a worm gear jack structure can be used instead of the gear 6 and toothed hole 8 structure of this embodiment. The spaced toothed holes 8 of this embodiment can also be replaced by a rack. The slider 3 is restricted on both sides by the limiting plate 12 and the guide rail 2, thereby increasing the stability of the slider 3 when it moves.

[0025] The portion of the rotating part 7 located on the outer side of the main body can be connected to a handle. By manually operating the handle, the slider 3 can be moved, thereby driving the circuit breaker's operating handle to perform opening and closing movements. The portion of the rotating part 7 located on the outer side of the main body can also be externally connected to an electric rotating mechanism (e.g., a motor).

[0026] In a preferred embodiment, the toothed hole 8 is located on the side plate 32 that contacts the guide rail 2. The limiting plate 12 is provided with a sliding groove 9. The side plate 32 that contacts the limiting plate 12 is provided with a protrusion 33 (the protrusion 33 can be a bulge, a protruding part formed by bending the side plate 32, or a single part connected to the side plate 32 by welding or other means). The protrusion 33 is slidably disposed in the sliding groove 9. The protrusion 33 cooperates with the sliding groove 9 to limit the movement stroke of the slider 3.

[0027] In this embodiment, a return spring 10 is installed on the guide rail 2. One end of the return spring 10 is connected to the slider 3 (the slider has a hanging hole 34, and one end of the return spring is hooked onto the hanging hole 34). The return spring 10 is used to reset the slider 3. After the external force on the rotating assembly is removed, the return spring 10 retracts, causing the slider 3 to move back to its original position. In other embodiments, other methods can also be used to reset the slider 3, such as rotating the rotating part 7 in the opposite direction.

[0028] In a preferred embodiment, the bracket 1 is integrally bent from a sheet metal part. An auxiliary plate 13 is vertically connected to the inner side of the main body plate 11. Several mounting portions 14 parallel to the main body plate 11 are connected to both the side of the auxiliary plate 13 near the limiting plate and the side of the limiting plate 12 near the auxiliary plate. Each mounting portion 14 has a mounting hole 15, and the main body plate 11 has a clearance hole 16 corresponding to each mounting hole 15. The clearance hole 16 facilitates the insertion of screws and other tools into the inner side of the bracket 1 to tighten the screws and other fasteners in the mounting holes 15. Since the mounting portions 14 are located within the inner space of the bracket 1, they do not additionally increase the external dimensions of the bracket 1, which is beneficial for miniaturization. In other embodiments, the structure of the bracket 1 is not limited to that described in this embodiment.

[0029] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. An operating mechanism for a circuit breaker handle, characterized by The bracket is internally fixedly provided with a guide rail, and a sliding block is slidably arranged inside the bracket. The sliding block is integrally bent from a sheet metal part, and the sliding block is provided with a through hole for accommodating an operating handle of the circuit breaker.

2. The operating mechanism of a circuit breaker handle according to claim 1, characterized in that The bracket comprises a main plate and a limiting plate connected to the inner side of the main plate, and the guide rail is fixed on the main plate.

3. The operating mechanism of a circuit breaker handle according to claim 2, characterized in that The sliding block is located between the limiting plate and the guide rail, and comprises a driving plate and two side plates connected perpendicularly to one side of the driving plate and parallel to each other.

4. The operating mechanism of a circuit breaker handle according to claim 2, characterized in that, The driving plate is opposite to the main plate with a space, the through hole and the two driving parts are arranged on the driving plate, and the two side plates are respectively in sliding contact with the guide rail and the limiting plate to limit the sliding track of the sliding block. The rotating assembly is rotatably installed on the main plate and located between the two side plates.

5. The operating mechanism of a circuit breaker handle according to claim 4, characterized in that The two driving parts are located on the side of the driving plate close to the main plate.

6. The operating mechanism of a circuit breaker handle according to claim 2, characterized in that, The rotating assembly comprises a gear and a rotating part.

7. The operating mechanism of a circuit breaker handle according to claim 1, characterized in that, The gear is located between the two side plates of the sliding block, the rotating part is rotatably installed on the main plate, one end of the rotating part is fixedly connected with the gear inside the main plate, and the other end of the rotating part is located outside the main plate. One of the side plates is provided with a plurality of tooth holes arranged at intervals and capable of meshing with the gear. Through the meshing of the gear and the corresponding tooth hole, the rotating part drives the sliding block to move along the guide rail when the rotating part rotates. The tooth hole is located on the side plate in contact with the guide rail, the limiting plate is provided with a sliding groove, the side plate in contact with the limiting plate is provided with a protrusion outside the side plate, the protrusion is slidably arranged in the sliding groove, and the protrusion cooperates with the sliding groove to limit the movement stroke of the sliding block. The bracket is integrally bent from a sheet metal part, and the inner side of the main plate is further perpendicularly connected with an auxiliary plate. The side of the auxiliary plate close to the limiting plate and the side of the limiting plate close to the auxiliary plate are both connected with a plurality of mounting parts parallel to the main plate, each mounting part is provided with a mounting hole, and the main plate is provided with a gap hole corresponding to each mounting hole. A return spring is installed on the guide rail, one end of the return spring is connected to the sliding block, and the return spring is used for returning the sliding block.

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