Handle mechanism and circuit breaker

Abstract

The utility model provides a handle mechanism and circuit breaker relates to circuit breaker technical field, the handle mechanism includes single-stage handle and linkage handle, single-stage handle is equipped with operating portion and transmission portion, single-stage handle and linkage handle are equipped with rotation center portion, single-stage handle is also equipped with transmission cooperation portion, linkage handle is equipped with transmission cooperation portion. One of the transmission part and the transmission matching part is of a long-strip-shaped structure, the other one of the transmission part and the transmission matching part is of a groove-shaped structure with wall bodies on the two sides, the long-strip-shaped structure extends into the groove-shaped structure to achieve transmission matching, and when the single-stage handle acts, the transmission part is used for driving the transmission matching part to further drive the linkage handle to act. The single-stage handle and the linkage handle are matched in an inserted mode through the transmission part and the transmission matching part, synchronous movement of the two handles can be achieved without adding a traditional handle sleeve or a linkage shaft, and therefore the number of parts is reduced, cost is further reduced, and assembling efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a handle mechanism and a circuit breaker. Background Art

[0002] At present, the number of handles of the operating mechanism of a multi-stage circuit breaker is set according to the number of stages. For example, a two-stage circuit breaker generally has two handles, and an additional handle cover or linkage shaft is required between the two handles to enable the two handles to move synchronously, resulting in an increase in the number of required parts, which is not conducive to reducing costs and improving assembly efficiency. In view of the above defects, the present application is proposed. Utility Model Content

[0003] The utility model aims to provide a handle mechanism and a circuit breaker, which solves the problem that the handles of multi-stage circuit breakers need to use handle sleeves or linkage shafts to achieve synchronous movement, resulting in difficulty in further reducing costs and improving assembly efficiency.

[0004] In order to solve the above problems, the utility model provides a handle mechanism, including a single-stage handle and a linkage handle, the single-stage handle has an operating part and a transmission part, the single-stage handle and the linkage handle both have a rotation center part, the single-stage handle is also provided with a transmission matching part, one of the transmission part and the transmission matching part is a long strip structure, and the other is a groove structure with walls on both sides, the long strip structure extends into the groove structure to realize transmission matching, and when the single-stage handle is actuated, the transmission part is used to drive the transmission matching part and then drive the linkage handle to actuate.

[0005] According to an embodiment of the present utility model, the transmission part is a long strip structure, and the transmission matching part is a groove structure with walls on both sides.

[0006] According to an embodiment of the utility model, the transmission part is a groove-shaped structure with walls on both sides, and the transmission matching part is a long strip-shaped structure.

[0007] According to an embodiment of the utility model, the strip-shaped structure and the groove-shaped structure are in interference fit.

[0008] According to an embodiment of the utility model, there is a clearance fit between the long strip structure and the groove structure.

[0009] According to an embodiment of the present invention, the end surfaces of the strip-shaped structure and the two side walls of the groove-shaped structure that are opposite to each other are planes.

[0010] According to an embodiment of the utility model, the long strip structure and the groove structure are plug-fitted.

[0011] According to an embodiment of the present invention, the inner width of the groove-shaped structure is greater than the width of the opening.

[0012] According to an embodiment of the utility model, the single-stage handle and the linkage handle are both provided with connection holes for assembly with the connecting rod.

[0013] A circuit breaker comprises the above-mentioned handle mechanism.

[0014] The beneficial effect of the utility model is that the single-stage handle and the linkage handle are connected and matched by the transmission part and the transmission matching part, without adding a traditional handle sleeve or linkage shaft to realize the synchronous movement of the two handles, thereby reducing the number of parts and components, which is conducive to further reducing costs and further improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a schematic diagram of the overall structure of the handle mechanism;

[0017] Figure 2 It is a schematic diagram of the structure of a single-stage handle and a linkage handle;

[0018] Figure 3 It is a structural diagram of the cooperation between the single-stage handle and the linkage handle;

[0019] Figure 4 Circuit breaker schematic. DETAILED DESCRIPTION

[0020] The following description is only used to disclose the utility model so that those skilled in the art can implement the utility model. The embodiments described below are only for example, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other solutions that do not deviate from the spirit and scope of the utility model.

[0021] A handle mechanism, such as Figure 1-Figure 3, including a single-stage handle 11 and a linkage handle 12, the single-stage handle 11 has an operating part 112 and a transmission part 111, the single-stage handle 11 and the linkage handle 12 both have a rotation center part, namely a rotation center part 113 and a rotation center part 2 123, the rotation center part is used to assemble with a rotation pin, the single-stage handle 11 and the linkage handle 12 are provided with connecting holes for assembling with connecting rods, namely a connecting hole 114 and a connecting hole 2 122; one end of the two connecting rods 13 is assembled at the connecting hole, and the other end is connected to the contact operating mechanism 2, the single-stage handle 11 is also provided with a transmission matching part 121, one of the transmission part 111 and the transmission matching part 121 is a long strip structure, and the other is a groove structure with walls on both sides, the long strip structure extends into the groove structure to realize transmission matching, when the single-stage handle 11 is actuated, the transmission part 111 is used to drive the transmission matching part 121 and then drive the linkage handle 12 to act.

[0022] The single-stage handle 11 and the linkage handle 12 are plugged into each other through the transmission part 111 and the transmission matching part 121, and the synchronous movement of the two handles is achieved without adding a traditional handle sleeve or linkage shaft, thereby reducing the number of parts and components, which is conducive to further reducing costs and further improving assembly efficiency.

[0023] In this embodiment, the transmission part 111 is a long strip structure, and the transmission matching part 121 is a groove structure with walls on both sides. In other embodiments, the transmission part 111 can be set as a groove structure with walls on both sides, and the transmission matching part 121 is a long strip structure, and the long strip structure and the groove structure are interference fit or clearance fit.

[0024] Preferably, the end faces of the two side walls of the elongated structure and the grooved structure are flat to ensure the contact area between the two during transmission and to ensure smooth transmission. In other embodiments, the elongated structure is not limited to having a square or trapezoidal cross-section, but may also be other shapes such as a circle.

[0025] Alternatively, if Figure 3 The long strip structure and the groove structure are plug-fitted, so that when the long strip structure of the single-stage handle 11 is inserted into the groove structure of the linkage handle 12 during assembly, the linkage handle 12 can maintain a certain stability, which is convenient for subsequent assembly. The plug-fitting method is achieved in this embodiment by setting the internal width of the groove structure to be larger than the width of the opening. It is also possible to choose to set the groove structure to a dovetail groove and the long strip structure to a dovetail type.

[0026] The handle mechanism is not only applicable to two-stage circuit breakers, but also applicable to other multi-stage circuit breakers, and can be adapted by simply increasing the number of linkage handles 12.

[0027] A circuit breaker, such as Figure 4 , including the above-mentioned handle mechanism.

[0028] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed and modified in any way.

Claims

1. A handle mechanism, characterized in that: The invention comprises a single-stage handle (11) and a linkage handle (12), wherein the single-stage handle (11) is provided with an operating portion (112) and a transmission portion (111), and both the single-stage handle (11) and the linkage handle (12) are provided with a rotation center portion. The single-stage handle (11) is also provided with a transmission matching portion (121), wherein one of the transmission portion (111) and the transmission matching portion (121) is a long strip structure, and the other is a groove structure with walls on both sides, and the long strip structure extends into the groove structure to realize transmission matching. When the single-stage handle (11) is actuated, the transmission portion (111) is used to drive the transmission matching portion (121), thereby driving the linkage handle (12) to actuate.

2. A handle mechanism according to claim 1, characterized in that: The transmission part (111) is a long strip structure, and the transmission matching part (121) is a groove structure with walls on both sides.

3. A handle mechanism according to claim 1, characterized in that: The transmission part (111) is a groove-shaped structure with walls on both sides, and the transmission matching part (121) is a long strip-shaped structure.

4. A handle mechanism according to any one of claims 1 to 3, characterized in that: The strip-shaped structure and the groove-shaped structure are in interference fit.

5. A handle mechanism according to any one of claims 1 to 3, characterized in that: There is a clearance fit between the long strip structure and the groove structure.

6. A handle mechanism according to claim 5, characterized in that: The end surfaces of the strip-shaped structure and the two side walls of the groove-shaped structure that are opposite to each other are planes.

7. A handle mechanism according to claim 6, characterized in that: The long strip structure and the groove structure are plug-fitted.

8. A handle mechanism according to claim 7, characterized in that: The inner width of the groove-shaped structure is greater than the width at the opening.

9. A handle mechanism according to any one of claims 6 to 8, characterized in that: The single-stage handle (11) and the linkage handle (12) are both provided with connection holes for assembly with the connecting rod.

10. A circuit breaker, characterized in that: The handle mechanism comprises any one of claims 1 to 9.

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