Plastic shell circuit breaker cover with centered handle

Abstract

The invention relates to a plastic shell circuit breaker cover with a centered handle, which comprises a large cover, a turned cover, a handle and a lever, wherein the lever is in an inversed U-shape, and the bottom of the lever extends outwards to form a bulge; the handle is in a sheet arc shape, the arc top of the handle extends outwards out of a handle part in the radial direction, and the arc inner side of the handle is provided with at least one L-shaped or U-shaped guide rail axially extending along the arc; and the bugle on the lever can relatively slide along the guide rail of the handle. After the plastic shell circuit breaker cover is assembled, the handle slightly moves in the arc tangential direction of the handle relative to the lever and can slide to the middle of the large cover along the axis of the bulge relative to the lever, the handle part of the handle is positioned in the middle of the large cover in the direction, the arced surface of the handle is positioned between an insulated partition plate and a screen plate of the large cover, and the lever, the handle and the large cover are connected into a whole so as to be easy for the fastening of a base and the large cover. An operating hole of the turned cover is positioned in the middle of the turned cover, and after the turned cover and the large cover are connected, the handle part of the handle is positioned in the middle of the whole plastic shell circuit breaker cover, so that the plastic shell circuit breaker cover is more convenient in operation and more attractive in visual appearance.

Description

technical field [0001] The invention relates to a buckle cover of a molded case circuit breaker with a handle in the center, belonging to the field of low-voltage electrical appliances. Background technique [0002] Such as figure 2 As shown, the connection between the handle and the lever in the prior art adopts at least one circular or rectangular or semicircular hole at the lever 01 and a circular or rectangular or semicircular stretching hole at the corresponding position 02 on the handle. It is completed with the cooperation of the platform. [0003] The degree of freedom of the handle relative to the lever in the radius direction of the handle arc is constrained by the restriction of the inner arc of the large cover on the upper side of the circuit breaker handle to the direction of the handle arc along the radius to the center of the circle, resulting in the movement of the handle to the large cover. There is friction. [0004] In the connection mode of the prior a...

AI Technical Summary

Problems solved by technology

[0004] In the connection method of the prior art, on the basis of the friction between the handle and the large cover, the handle still has a relatively large movable margin relative to the lever in the arc tangential direction of the handle.

And for a two-pole circuit breaker, the handle is located on the edge of the circuit breaker, which is not suitable for operation, and has high requirements for the installation space of the circuit breaker

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