Desk clamping hand prevention mechanism and clamping hand prevention desk

Abstract

The invention provides a desk clamping hand prevention mechanism and a clamping hand prevention desk, wherein desk clamping hand prevention mechanism comprises a base plate, a movable cover, a PCB plate, a key switch and an elastic part, the base plate can be movably covered with the movable cover, the PCB plate is mounted between the base plate and the movable cover, the key switch is installed on the PCB plate, the elastic part is arranged between the movable cover and the PCB plate, the elastic part jacks up the movable cover under the natural state to avoid that the movable cover triggersthe key switch, and when the movable cover is pressed, the elastic part is compressed, and thus the key switch is triggered. According to the desk clamping hand prevention mechanism and the clamping hand prevention desk, when an object is clamped, the movable cover plate is touched, and then the motion of clamping the object is stopped, and thus a function of clamping hand prevention is realized,the structure is simple, the reaction is sensitive, the situation that misinformation occurs is avoided, and the effect of clamping hand prevention is good. Besides, the key switch belongs to a push-button switch and have longer service life.

Description

technical field [0001] The invention relates to the technical field of furniture, in particular to a table anti-pinch mechanism and an anti-pinch table. Background technique [0002] At present, most of the electric children's learning desks on the market do not have the function of preventing hand pinching, which is easy to cause hand pinch accidents, and there are certain safety hazards for children to use. However, some desks with anti-pinch function have anti-pinch function methods, which control the rotation plate of the pinch to stop by changing the current value when the hand is pinched. This kind of desk has a complex structure and requires high power for the motor. It is difficult to control the change of , and it is difficult to achieve the ideal anti-pinch function. Moreover, false alarms are prone to occur through the current control method, and the sensitivity threshold is difficult to control. Contents of the invention [0003] The object of the present inve...

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Problems solved by technology

[0002] At present, most of the electric children's learning tables on the market do not have the function of preventing hand pinching, which is easy to cause hand pinch accidents, and there are certain safety hazards for children.

However, some desks with anti-pinch function have anti-pinch function methods, which control the rotation plate of the pinch to stop by changing the current value when the hand is pinched. This kind of desk has a complex structure and requires high power for the motor. It is difficult to control the change of the change, and it is difficult to achieve the ideal anti-pinch function. Moreover, false alarms are prone to occur through the current control method, and the sensitivity threshold is difficult to control.

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