An external lever-type actuator

Abstract

This utility model provides an external lever-type actuation mechanism, including a lever; the lever has a B-shaped structure; one end of the lever is connected to an external bracket via a riveting shaft, and the other end is suspended; the lower end of the external bracket has multiple mounting holes for connecting to a micro switch unit, and the mounting holes are connected to the micro switch unit via connectors. This utility model designs the lever-type actuation mechanism as an independent external structure that can be separated from the micro switch unit. In use, only two screws are needed to fix the external lever-type actuation mechanism and the micro switch unit together to the mounting plate in a specified direction, making operation convenient and simple.

Description

Technical Field

[0001] This utility model relates to an external lever-type actuator, belonging to the field of electromechanical component technology. Background Technology

[0002] Microswitches, also known as sensitive switches, are highly sensitive in action and have high stroke accuracy. They use a lever as their actuation mechanism. Traditionally, a support structure is added directly to the housing of a basic microswitch unit. However, this changes and increases the size of the housing structure, reduces or even eliminates the versatility of the switch unit, and increases production costs due to the reinvestment in the housing. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an external lever-type actuator, which solves the problem of lever placement and universal use of basic micro switch units in existing lever-type actuators.

[0004] This utility model is achieved through the following technical solution.

[0005] This utility model provides an external lever-type actuation mechanism, including a lever; the lever has a B-shaped structure; one end of the lever is connected to an external bracket via a rivet shaft, and the other end is suspended; the lower end of the external bracket is provided with multiple mounting holes for connecting to a micro switch unit, and the mounting holes are connected to the micro switch unit via connectors.

[0006] The connecting component is a screw, rivet, or pin.

[0007] When the connector is a screw, a flat washer and a 6 are sequentially provided between the screw and the micro switch unit.

[0008] A flat washer is provided between the external bracket and the micro switch unit.

[0009] The external bracket is an irregularly shaped external bracket.

[0010] The suspended end of the lever works in conjunction with the button of the micro switch unit.

[0011] The beneficial effects of this utility model are as follows: the lever-type actuator is designed as an independent external structure that can be separated from the micro switch unit. In use, it is only necessary to use two screws to fix the external lever-type actuator and the micro switch unit together on the mounting plate in the specified direction, which is convenient and simple to operate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 yes Figure 1 Side view;

[0014] Figure 3 This is a schematic diagram of the lever structure of this utility model;

[0015] Figure 4 This is an assembly drawing of this utility model;

[0016] Figure 5 This is a schematic diagram illustrating the working principle of this utility model;

[0017] In the diagram: 1-Micro switch unit, 2-Lever, 3-External bracket, 4-Rivet shaft, 5-Flat washer, 6-Nut, 7-Screw, 8-Flat washer. Detailed Implementation

[0018] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0019] like Figures 1-3 As shown, lever 2 is designed as a B-shaped structure, with one end connected to rivet shaft 4 and irregular external bracket 3, and the other end suspended; the upper end of irregular external bracket 3 is connected to rivet shaft 4 and lever 2, and the lower end is connected to micro switch unit 1 by screw 7 or rivet, pin, etc.

[0020] like Figure 4 As shown, the assembly process of this utility model is as follows: first, the lever 2 and the external bracket 3 are installed into the rivet shaft 4 in sequence, and the small end of the rivet shaft 4 is riveted firmly. Then, the micro switch unit 1 is fixed to the external bracket 3 with screws 7, flat washers 5, flat washers 8 and nuts 6.

[0021] The working principle of this utility model is as follows:

[0022] like Figure 5 As shown, a lever-type actuation mechanism is formed by lever 2, external bracket 3, and rivet shaft 4. When lever 2 and the button of micro switch unit 1 are in the free position, C-NC is turned on and C-NO is turned off. When an external force F presses lever 2 to cause the button of micro switch unit 1 to move to the reversing position, C-NC is turned off and C-NO is turned on under the action of the reversing mechanism spring inside micro switch unit 1, realizing the switching of micro switch unit 1. The spring inside micro switch unit 1 stores elastic potential energy due to elastic deformation caused by compression. When lever 2 and the button of micro switch unit 1 are released, the button of micro switch unit 1 and lever 2 return to the free position under the elastic force of the spring inside micro switch unit 1. After the C and NO ends are disconnected, they are reconnected to the NC end. At this time, the spring releases elastic potential energy, and the switch completes one action cycle.

[0023] The beneficial effects of this utility model are as follows:

[0024] 1. The lever adopts a B-shaped structure, which has a simple part structure and is formed by "stamping + winding" process, which is mature and easy to process;

[0025] 2. It adopts an irregular external bracket, whose structural dimensions can be flexibly adjusted according to the shape and structural characteristics of the micro switch unit, making it highly operable;

[0026] 3. The external lever actuator is designed to be detachable. During use, the user can adjust the position of the external lever actuator according to the coordination of the drive and the switch, making operation convenient and simple.

[0027] 4. The lever and external bracket are connected by riveting, which makes the structure reliable and the operation convenient and simple.

Claims

1. An external lever-type actuator, comprising a lever (2), characterized in that: The lever (2) has a B-shaped structure; one end of the lever (2) is connected to an external bracket (3) via a rivet shaft (4), and the other end is suspended; the lower end of the external bracket (3) is provided with multiple mounting holes for connecting to the micro switch unit (1), and the mounting holes are connected to the micro switch unit (1) via connectors.

2. The external lever-type actuator as described in claim 1, characterized in that: The connector is a screw (7) or a rivet or pin.

3. The external lever-type actuator as described in claim 2, characterized in that: When the connector is a screw (7), a flat washer (5) and a 6 are sequentially provided between the screw (7) and the micro switch unit (1).

4. The external lever-type actuator as described in claim 1, characterized in that: A flat washer (8) is provided between the external bracket (3) and the micro switch unit (1).

5. The external lever-type actuator as described in claim 1, characterized in that: The external bracket (3) is an irregularly shaped external bracket.

6. The external lever-type actuator as described in claim 1, characterized in that: The suspended end of the lever (2) works in conjunction with the button of the micro switch unit (1).

Images