Breaker handle switching-on and switching-off action driving mechanism

Abstract

The utility model discloses a breaker handle opening and closing action driving mechanism, which comprises a linear driving part, a mounting seat, a plurality of mounting rods and a shifting block, the mounting seat is suitable for being driven by the linear driving part to do linear movement, the plurality of mounting rods are fixed on the mounting seat side by side at intervals, and the mounting rods are provided with mounting parts perpendicular to the moving direction of the mounting seat. The shifting block is movably mounted at the tail end of the mounting part through a movable limiting structure, the moving direction of the shifting block is the setting direction of the mounting part, an elastic component is mounted between the shifting block and the mounting part, and the shifting block keeps the trend of moving towards the tail end of the mounting part under the action of the elastic component. The circuit breaker handle opening and closing action driving mechanism is optimized in design, simplified in structure and low in manufacturing cost, is suitable for being used for controlling the circuit breaker handle to perform opening and closing actions on detection equipment, and has good practicability and generalizability.

Description

Technical Field

[0001] The utility model relates to a driving mechanism for the opening and closing actions of a circuit breaker handle, belonging to the field of the structural design of circuit breaker testing equipment. Background Art

[0002] A circuit breaker refers to a switching device that can close, carry, and break the current under normal circuit conditions, and can also close, carry, and break the current under abnormal circuit conditions (including short-circuit conditions) within a specified time. After the circuit breaker product is assembled, it needs to be subjected to performance tests such as instantaneous, delay, withstand voltage, and mechanical operation on a testing device to determine whether the product is qualified. When testing the product, it is necessary to energize the product. In addition to connecting the circuit breaker to the line, it is also necessary to control the handle to perform a closing operation to make the circuit breaker enter the closed state. After the closing detection is completed, the circuit breaker handle needs to be opened.

[0003] A mechanical operation detection device for a circuit breaker disclosed in the patent document CN204788916U includes a mechanical closing mechanism. The mechanical closing mechanism includes a servo motor and a closing push rod. The servo motor can drive the closing push rod to push the product to close. Specifically, the mechanical closing mechanism further includes a lead screw support and a closing workpiece. The lead screw support is fixedly connected to the servo motor. The closing workpiece is fixedly connected to the rotating shaft at one end of the servo motor. The closing workpiece is slidably connected to the lead screw support through a linear guide rail. The closing push rod is connected to one end of the closing workpiece. When the mechanical closing mechanism receives a system command, the servo motor rotates, and the closing workpiece moves upward along the linear guide rail. After closing the product handle, the servo motor rotates in the reverse direction, and the closing workpiece returns to its original position along the linear guide rail. The mechanical closing mechanism in the above patent document can only control the closing of the circuit breaker in the testing device and cannot make the circuit breaker handle perform an opening action. If automatic opening is to be realized, an additional opening driving mechanism needs to be equipped, resulting in a very complex structure and greatly increasing the manufacturing cost. Summary of the Utility Model

[0004] Aiming at the deficiencies pointed out in the background art, the utility model aims to provide a driving mechanism for the opening and closing actions of a circuit breaker handle with a reasonable optimized structure, which has a simplified structure, low manufacturing cost, and good practicability and popularization.

[0005] The technical solution for realizing the purpose of the utility model is as follows:

[0006] A driving mechanism for the opening and closing actions of a circuit breaker handle provided by the present utility model includes a linear driving component, a mounting seat, mounting rods, and a dial. The mounting seat is adapted to be driven by the linear driving component to move linearly. A plurality of the mounting rods are fixedly arranged side by side and at intervals on the mounting seat. The mounting rods have mounting portions perpendicular to the moving direction of the mounting seat. The dial is movably mounted at the end of the mounting portion through a movable limiting structure. The movable direction of the dial is the setting direction of the mounting portion. A elastic member is installed between the dial and the mounting portion. Under the action of the elastic member, the dial maintains a tendency to move towards the end of the mounting portion.

[0007] In the above technical solution, the dial is a cylindrical structure with a smooth outer peripheral surface; the movable limiting structure includes a connecting shaft provided at the center of the dial and a strip-shaped sliding hole provided on the mounting portion. The end of the connecting shaft extends into the strip-shaped sliding hole to form a slidable fit. The length direction of the strip-shaped sliding hole is the setting direction of the mounting portion.

[0008] In the above technical solution, a fixing block is fixed to the power output end of the linear driving component. The mounting seat is fixedly connected to the fixing block through screws. One of the mounting seat and the fixing block has a long strip hole for the screw to pass through.

[0009] In the above technical solution, the elastic member is a spiral compression spring. A positioning hole for positioning the elastic member is provided on the mounting portion.

[0010] In the above technical solution, the linear driving component is a cylinder or an electric push rod.

[0011] The present utility model has positive effects: The structure of the driving mechanism for the opening and closing actions of the circuit breaker handle of the present utility model is optimized. It can realize the driving of the opening and closing actions of the operating handle, with few components, simple structure, and low manufacturing cost. Specifically, during installation and use, the linear driving component drives the mounting seat and the mounting rods to move linearly forward, and the dial generates a forward thrust on the circuit breaker handle to complete the closing of the circuit breaker. After the closing is completed, the dial continues to move forward and passes over the circuit breaker handle (when passing over the circuit breaker handle, the dial will displace along the limiting direction of the movable limiting structure, so as to get rid of the obstruction of the circuit breaker handle. After passing over the circuit breaker handle, the dial resets under the action of the elastic member). When the linear driving component drives the mounting seat and the mounting rods to move linearly backward during the return journey, similarly, the dial generates a backward thrust on the circuit breaker handle to complete the opening of the circuit breaker handle and passes over the circuit breaker handle again. In this way, the driving of the opening and closing actions of the circuit breaker handle can be realized. Description of the Drawings

[0012] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0013] Figure 1 It is a schematic structural diagram of the driving mechanism for the opening and closing actions of the circuit breaker handle in the present utility model;

[0014] Figure 2 It is a partial cross-sectional view of the installation location of the shifting block.

[0015] The reference numerals shown in the figure are: 1 - linear driving component; 11 - fixing block; 2 - mounting seat; 21 - long slot; 3 - mounting rod; 31 - mounting portion; 32 - strip-shaped sliding hole; 33 - positioning hole; 4 - shifting block; 41 - connecting shaft; 5 - elastic component. Specific Embodiments

[0016] The following will describe in detail the embodiments of the technical solutions of the present invention with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0017] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present invention belongs.

[0018] The structure of the driving mechanism for the opening and closing actions of the circuit breaker handle in this embodiment is as Figure 1 and Figure 2As shown in the figure, it includes a linear drive component 1, a mounting base 2, a mounting rod 3, and a shifting block 4. The mounting base 2 is adapted to be driven by the linear drive component 1 to move linearly. A plurality of the mounting rods 3 are fixedly arranged side by side and at intervals on the mounting base 2. The mounting rod 3 has a mounting portion 31 perpendicular to the moving direction of the mounting base 2. The shifting block 4 is movably mounted at the end of the mounting portion 31 through a movable limiting structure. The movable direction of the shifting block 4 is the setting direction of the mounting portion 31. A elastic member 5 is installed between the shifting block 4 and the mounting portion 31. Under the action of the elastic member 5, the shifting block 4 maintains a tendency to move towards the end of the mounting portion 31. In this embodiment, the structure of the opening and closing action driving mechanism of the circuit breaker handle is optimized. It can realize the opening and closing action driving of the operating handle, with fewer components, simple structure, and low manufacturing cost. Specifically, during installation and use, the linear drive component 1 drives the mounting base 2 and the mounting rod 3 to move linearly forward, and the shifting block 4 generates a forward thrust on the circuit breaker handle to complete the closing of the circuit breaker. After the closing is completed, the shifting block 4 continues to move forward and passes over the circuit breaker handle (when passing over the circuit breaker handle, the shifting block 4 will displace along the limiting direction of the movable limiting structure, so as to get rid of the block of the circuit breaker handle. After passing over the circuit breaker handle, the shifting block 4 resets under the action of the elastic member 5). When the linear drive component 1 drives the mounting base 2 and the mounting rod 3 to move linearly backward during the return stroke, similarly, the shifting block 4 generates a backward thrust on the circuit breaker handle to complete the opening of the circuit breaker handle and passes over the circuit breaker handle again. In this way, the driving of the opening and closing actions of the circuit breaker handle can be realized.

[0019] In this embodiment, the shifting block 4 is a cylindrical structure with a smooth outer peripheral surface; the movable limiting structure includes a connecting shaft 41 arranged at the center of the shifting block 4 and a strip-shaped sliding hole 32 arranged on the mounting portion 31. The end of the connecting shaft 41 extends into the strip-shaped sliding hole 32 to form a slidable fit. The length direction of the strip-shaped sliding hole 32 is the setting direction of the mounting portion 31. The shifting block 4 is designed as a cylindrical structure and can reduce the resistance by rotating around the connecting shaft 41 when being subjected to resistance. And the cooperation formed by the connecting shaft 41 and the strip-shaped sliding hole 32 enables the shifting block 4 to have a certain activity space along the length direction of the strip-shaped sliding hole 32.

[0020] Furthermore, a fixing block 11 is fixed at the power output end of the linear drive component 1. The mounting base 2 is fixedly connected to the fixing block 11 through screws. A long strip hole 21 for the screw to pass through is provided on one of the mounting base 2 and the fixing block 11, and a threaded hole for cooperating with the screw is provided on the other component. Through this design, there is a certain relative activity amount between the mounting base 2 and the fixing block 11, and the position of the mounting base 2 can be appropriately adjusted according to the actual situation during assembly to meet the installation requirements.

[0021] Further, for the convenience of installation, the elastic component 5 in this embodiment is a helical compression spring. A positioning hole 33 for positioning the elastic component is provided on the installation part 31. One end of the helical compression spring is inserted into the positioning hole 33, and the other end abuts against the dial block 4.

[0022] In this embodiment, the linear driving component 1 is a linear driving component such as a cylinder or an electric push rod.

[0023] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And these obvious changes or modifications derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. A driving mechanism for the opening and closing actions of a circuit breaker handle, characterized in that It includes a linear drive component (1), a mounting base (2), a mounting rod (3) and a shifting block (4). The mounting base (2) is adapted to be driven by the linear drive component (1) to move linearly. A plurality of the mounting rods (3) are fixedly arranged side by side and at intervals on the mounting base (2). The mounting rod (3) has a mounting portion (31) perpendicular to the moving direction of the mounting base (2). The shifting block (4) is movably mounted at the end of the mounting portion (31) through a movable limiting structure. The movable direction of the shifting block (4) is the setting direction of the mounting portion (31). A resilient member (5) is arranged between the shifting block (4) and the mounting portion (31). Under the action of the resilient member (5), the shifting block (4) maintains a tendency to move towards the end of the mounting portion (31).

2. The opening and closing action driving mechanism of the circuit breaker handle according to claim 1, characterized in that The shifting block (4) is a cylindrical structure with a smooth outer peripheral surface; the movable limiting structure includes a connecting shaft (41) arranged at the center of the shifting block (4) and a strip-shaped sliding hole (32) arranged on the mounting portion (31). The end of the connecting shaft (41) extends into the strip-shaped sliding hole (32) to form a slidable fit. The length direction of the strip-shaped sliding hole (32) is the setting direction of the mounting portion (31).

3. The opening and closing action driving mechanism of the circuit breaker handle according to claim 1, characterized in that A fixing block (11) is fixed at the power output end of the linear drive component (1). The mounting base (2) is fixedly connected to the fixing block (11) by screws. One of the mounting base (2) and the fixing block (11) has an elongated hole (21) for the screw to pass through.

4. The opening and closing action driving mechanism of the circuit breaker handle according to claim 1, characterized in that The resilient member (5) is a helical compression spring. A positioning hole (33) for positioning the resilient member is arranged on the mounting portion (31).

5. The opening and closing action driving mechanism of the circuit breaker handle according to any one of claims 1 to 4, characterized in that, The linear drive component (1) is a cylinder or an electric push rod.

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