Extrusion control type three-state switch timer

Abstract

The invention discloses an extrusion control type three-state switch timer, comprising a timing device for setting timing time, a driving motor for providing power to the timing device, a gear transmission system for conducting the power of the driving motor to the timing device, a micro-switch which is controlled by the timing device to switch on / off current, and a swinging frame for conducting the movement of the timing device to the micro-switch, wherein a pulling button is mounted between the swinging frame and the micro-switch; and the pulling button controls the contact between the swinging frame and a contact of the micro-switch through three different pulling positions, so as to realize three working modes including timing, long switching-on and long switching-off of the timer. According to the extrusion control type three-state switch timer, a transmission part, namely the swinging frame, between the micro-switch and a timing point inserting sheet is controlled by the pulling button, so that the three working states of timing, long switching-on and long switching-off of the timer are realized; and therefore, the application range of the timer is wider and the use is more flexible.

Description

technical field [0001] The invention relates to a timing device, in particular to a timer capable of controlling the on-off time of a load current, and the timer is equipped with a self-controlled multi-band switch. Background technique [0002] The timers in the prior art generally include a motor, a micro switch, and a timing device for setting the time. The working principle is that the motor drives the gear to drive the timing device to work. The switch operates to disconnect the controlled circuit. The timing range of this type of timer is generally 24 hours or a cycle, that is, the scale circle on the timing device works in a circle after 24 hours or a week, that is, all timing points will be triggered within this week, and the opening of the micro switch here Closing is only controlled by the insert on the timing device, that is, when the timing point is reached, the protruding timing insert on the timing device will directly or press the switch of the microswitch by...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the toggle button of the timer in the prior art can only be set to two working states of long-pass and timing, and the linkage between the micro switch and the timing point insert is not controlled, resulting in a relatively single function of the timer, the present invention Provide a toggle button that controls the connection state between the micro switch of the timer and the insert piece of the timing point. On the basis of the existing two control methods, the timer can provide long-off control, so as to achieve flexible control of the timer setting. The scheme of the effect of a fixed time period, and at the same time, the support shaft of the cradle is set in the middle of the power arm, which reduces the thrust that needs to be pressed on the contact

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