Circuit breaker handle connection mode

Abstract

The invention discloses a circuit breaker handle connection mode, which comprises a handle (1) and a lever (2). The handle (1) and the lever (2) are mounted together. The circuit breaker handle connection mode is characterized in that the bottom part of a handle disc part (101) of the handle (1) is provided with a mounting groove (102); the bottom part (201) of the lever (2) is mounted in the mounting groove (102) and can rotate; and when the lever (2) is rotated to a fixed position in the mounting groove (102), the degree of freedom is limited by limiting bosses (103) and the lever is thus mounted in the mounting groove (102). According to the circuit breaker handle connection mode, the lever and the handle adopt a rotating mounting mode, and while the cost of the handle and the cost of the lever are not increased, the handle can be reliably connected with the lever and limited.

Description

technical field [0001] The invention belongs to the technical field of circuit breakers, and in particular relates to a connection method of a circuit breaker handle. Background technique [0002] Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Low-voltage circuit breaker, also known as automatic switch, commonly known as "air switch", also refers to low-voltage circuit breaker. It is an electrical appliance that not only has the function of manual switch, but also can automatically protect against voltage loss, undervoltage, overload, and short circuit. It can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, etc., and can automatically cut off the circuit when they have severe overload, short circuit and undervoltage faults. Its function is equivalent to a fuse switch and The combination of overheating and underheating relays, etc....

AI Technical Summary

Problems solved by technology

However, in the existing installation methods of these handles and levers, when the handle is installed vertically, when the handle drives the lever to close and open the brake, the handle needs to be limited by the arc inside the middle cover of the circuit breaker. First, the operating force of the handle will be increased. , affecting the movement speed of the mechanism. Second, during the closing and opening process, it will cause friction between the handle and the middle cover and generate a lot of dust that will affect the moving parts of the mechanism. The third is that production and debugging are inconvenient. If there is no middle cover, the handle cannot be reliably connected with the lever. connection, it is easy to fall off from the lever, or even unable to close and open. In the process of production and debugging, other tools are needed to realize the closing and opening action of the product

When the handle is installed from the side, the limit of the handle is insufficient, and one side is fully open, so it is easy to slip out of the limit slot or cause friction with the side wall of the middle cover during use, which will also cause a lot of dust, etc. , affecting the performance of the product

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