School bus child alarm device

Abstract

A school bus child alarm device comprises a controller, a driver seat, a child seat, and a safety door-closing device; the driver seat comprises a first seat frame, a first seat cushion, a first push-button switch, and a first seat back; the first push-button switch is mounted between a first base plate of the first seat cushion and a first groove bottom of a first guide groove, the first push-button switch being a normally closed switch; the child seat comprises a second seat frame, a second seat cushion, a second push-button switch, and a second seat back; the second push-button switch is mounted between a second base plate of the second seat cushion and a second groove bottom of a second guide groove, the second push-button switch being a normally open switch; the safety door-closing device is constituted by an electrically-powered component, the base thereof being fixedly connected to a vehicle door frame and the driving head thereof facing the vehicle door; when a child is in the vehicle, the electrically-powered component is energized and the driving head is extended, blocking the vehicle door and preventing same from closing; the invention is used for preventing children from being locked inside the vehicle.

Description

technical field [0001] The invention relates to a safety device, in particular to a school bus child alarm device. Background technique [0002] At present, during the pick-up and drop-off process of kindergarten school buses, there are often kindergarten children left in the bus. Due to the high temperature and lack of oxygen in the sealed bus, the children left in the bus are suffocated to death. A kind of school bus child alarm device that prevents children from being left in the car has become a need to protect children. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a school bus child alarm device to prevent children from being left in the vehicle. The technical scheme adopted by the present invention is: the school bus child alarm device includes a controller, a driver's seat, a child's seat and a safety door closing device; the driver's seat includes a first seat frame, a first cu...

AI Technical Summary

Problems solved by technology

The working principle of the school bus child alarm device is: after the driver opens the door, the car's control system transmits a door open signal to the controller, and the controller of the school bus child alarm device enters an automatic control state; The first button switch is in the normally closed state; after the child gets on the car and sits on the child seat, the second cushion of the child seat overcomes the spring force of the second button switch spring under the action of the child's body weight, so that the normally open first button switch The second button switch is closed; the second button switch transmits the signal that the child sits on the child seat to the controller, and the controller controls the first alarm indicator to light up, which is used to indicate that there is a child in the child seat; at the same time, the controller controls the safety door closing device When the electric element is energized, the power head of the electric element stretches out to block the door so that the door cannot be closed; after the driver gets on the car and sits on the driver's seat, the first seat cushion of the driver's seat overcomes the first button switch under the action of the driver's body weight. The elastic force of the spring drops, so that the normally closed first button switch is broken; the first button switch transmits the signal that the driver sits on the driver's seat to the controller, and the controller controls to cut off the power supply of the electric element, and the power head of the electric element resets and retracts , so that the school bus can close the door; the driver closes the door and drives the child to the destination. After the child gets off the car and leaves the child seat, the second seat cushion of the child seat returns and rises under the elastic force of the second button switch spring. The button switch is reset from closed to normally open state, and the second button switch transmits the signal that the child leaves the child seat to the controller, and the controller controls the first alarm indicator light to go out, so that the driver can know from the first alarm indicator light of the controller When the child leaves the child's seat; when the driver leaves the driver's seat, the first seat cushion of the driver's seat will reset and rise under the elastic force of the first button switch spring, and the first button switch will reset to the normally closed state from the disconnection. A button switch transmits the signal that the driver leaves the driver's seat to the controller; after the driver leaves the driver's seat, if there are children on the child seat, the second button switch on the child seat is closed, and the second button switch turns the child seat There are also children's signals transmitted to the controller, and the controller controls the power-on of the electric element of the safety door closing device. Child locked in car, child's life threatened

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