A lever type micro limit switch

Abstract

The invention discloses a lever-type inching limit switch which includes a pedestal, and a button, a connecting pole and a limit switch which are arranged inside the pedestal. The bending position of the connecting pole is in rotary connection to the pedestal. The root part of the button is connected to one end of the connecting pole. When the button moves in the axial direction, one end of the connecting pole is pressed so as to rotate the bending position of the connecting pole, and the other end of the connecting pole moves and touches a movable pole of the limit switch. According to the invention, the lever-type inching limit switch, according to the level principle and the formula between angular velocity and linear velocity v=wr, when the button presses a shorter end of the connecting pole to move at a smaller velocity, the longer end of the connecting pole moves at a greater velocity, and if the greater velocity meets the requirements for minimum triggering velocity of the switch, the lever-type inching limit switch effectively prevents power disconnection when the switch acts or flickering of switch signals. The end parts of the connecting pole are provided with adjusting bolts of which the positions can be adjusted, so that operation range parameters of the button triggering the switch in an accurate manner and requirements for extremely small tolerance can be met.

Description

technical field [0001] The invention relates to a switch, in particular to a limit switch. Background technique [0002] The micro switch is a contact mechanism with a small contact interval and a quick-action mechanism, which performs switching actions with a specified stroke and a specified force. It is covered with a casing and has a trigger rod on the outside. Small, hence the name micro switch. The external mechanical force acts on the action reed through the transmission element (press pin, button, lever, roller, etc.). Tap to quickly connect or disconnect. When the force on the transmission element is removed, the action reed produces a reverse action force, and when the reverse stroke of the transmission element reaches the action critical point of the reed, the reverse action is completed instantaneously. The contact spacing of the micro switch is small, the action stroke is short, the pressing force is small, and the on-off is rapid. The action speed of its mov...

AI Technical Summary

Problems solved by technology

[0009] Purpose of the invention: The purpose of the present invention is to address the deficiencies in the prior art and provide a lever-type micro-motion limit switch to solve the problem of large tolerances in its action parameters and at the same time solve the problem that the switch is close to the action point during the slow motion process. Often open connectors or normally closed connectors are not energized, or the switch signal flickers to ensure that industries, household appliances, transportation machines or equipment are safer and more reliable

Images