A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses an anti-hand-pinching device used for a door frame. The anti-hand-pinching device comprises an infrared tube sensor, a pyroelectricity sensor, a signal collecting circuit, a single chip microcomputer, a buzzer, a driving circuit, a motor and a limiting spring. The infrared tube sensor comprises an infrared emitting tube and an infrared receiving tube, and the infrared emitting tube and the infrared receiving tube are installed at the two sides of the door frame and the door slot at the door leaf rotating shaft respectively. The pyroelectricity sensor is installed at the inner side of the door frame. The infrared tube sensor and the pyroelectricity sensor are connected with the single chip microcomputer through the signal collecting circuit. The single chip microcomputer is further connected with the buzzer and the driving circuit. The output end of the driving circuit is connected with the motor. The motor controls the limiting spring to pop up so that the limiting spring can abut against the door leaf, and the door leaf is prevented from being closed. By means of the anti-hand-pinching device, whether a finger or a toe or other parts of a child is located in the door slot between the door frame and the door leaf rotating shaft can be found automatically, an alarm can be given in time, the motor controls the limiting spring to pop up so that the limiting spring can abut against the door shaft, the door is prevented from being closed, the safety and the practicability of the door are greatly improved, and a good application prospect is achieved.
The invention discloses an anti-hand-pinching device used for a door frame. The anti-hand-pinching device comprises an infrared tube sensor, a pyroelectricity sensor, a signal collecting circuit, a single chip microcomputer, a buzzer, a driving circuit, a motor and a limiting spring. The infrared tube sensor comprises an infrared emitting tube and an infrared receiving tube, and the infrared emitting tube and the infrared receiving tube are installed at the two sides of the door frame and the door slot at the door leaf rotating shaft respectively. The pyroelectricity sensor is installed at the inner side of the door frame. The infrared tube sensor and the pyroelectricity sensor are connected with the single chip microcomputer through the signal collecting circuit. The single chip microcomputer is further connected with the buzzer and the driving circuit. The output end of the driving circuit is connected with the motor. The motor controls the limiting spring to pop up so that the limiting spring can abut against the door leaf, and the door leaf is prevented from being closed. By means of the anti-hand-pinching device, whether a finger or a toe or other parts of a child is located in the door slot between the door frame and the door leaf rotating shaft can be found automatically, an alarm can be given in time, the motor controls the limiting spring to pop up so that the limiting spring can abut against the door shaft, the door is prevented from being closed, the safety and the practicability of the door are greatly improved, and a good application prospect is achieved.
Anti-hand-pinching device used for door frame
WU DONGYAN (author)
2016-02-03
Patent
Electronic Resource
English
IPC:
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung
A device that prevents your hand pinching between the door frame and the door
| European Patent Office | 2021