Design of the hottest intelligent translational wi

Design of an intelligent translational window hoist

as a channel for indoor and external communication, windows are closely related to people's healthy life. In winter, the gas poisoning events caused by the failure to open the windows for indoor coal-fired heating are repeated in reality, which is not so much due to the lack of relevant knowledge as the tragedy caused by the failure to open the windows to circulate air. If the window can automatically open when the indoor harmful gas exceeds the standard, there will be no danger due to carelessness or falling asleep, which fundamentally reduces the possibility of gas poisoning, thus greatly reducing the loss of people's lives and property

because today's translational windows are widely accepted, and the traditional window hoist is only suitable for flip windows or open windows, this paper designs a translational window hoist. The hoist is easy to install and has great practical value. It can not only meet the structural requirements of translational windows, but also take into account the indoor beauty and meet the structural requirements of house decoration

1 design idea

starting from the structure and function of the window hoist, that is, mainly from the external structure of the hoist, and making it have the functions of automatically opening the window when harmful gases (C0, CH4) exceed the standard, automatically closing the window when it blows strong wind, rain and outdoor noise is too large, and infrared remote control, the design can be conveniently installed on the existing translational window, which is in line with the premise of beautiful indoor decoration, Window opener with intelligent control

2 intelligent design

according to the health requirements of the human body, a gas detection sensor is set in the window to collect indoor air information. When indoor harmful gases (C0, CH4) exceed the standard, the sensor will transmit the signal to the control MCU and act on the motor with poor thermal stability, so that the forward transmission drives the window to open. At the same time, the buzzer rings and the LED light flashes, prompting people to check and deal with it. Non contact rain detection sensor, wind speed detection sensor and noise detection sensor are set outside the window. When it rains, blows strong wind or has strong noise outdoors, the signal is transmitted to the single chip microcomputer to drive the motor connected to it to reverse, so as to achieve the purpose of closing the window. Infrared remote control design, because in many cases, simple window closing action is not easy for users, such as bedridden patients, the elderly at home, children, etc. Therefore, the infrared remote control function is designed. When the window needs to be opened and closed, the purpose of opening and closing the window can be achieved through the remote control from a distance, making the operation more convenient. The principle of intelligent control is shown in Figure L:

3 structural design

in order to meet the requirements of convenient installation and use on the existing translational window caused by heating of electrical appliances or components and electromechanical devices, and not damaging the original window, the main design adopts the structure shown in Figure 2, and the detection and control part of the main body of the hoist is installed on the window. In order to ensure the reliability of motion transmission, the rack and pinion structure is designed to drive. The rack shaped rod is installed on the window frame through the hinge. A pair of gears connected with the motor are meshed with the rack rod. As shown in Figure 3, a pair of gears are designed to match, one of which is the driving gear and the other is the follow-up gear, so that the motion of the structure is relatively stable and the resistance is reduced, which not only occupies a small volume, but also is convenient for installation. In order to ensure that the window stops immediately when it moves to the end of the rack, a touch switch is designed at both ends of the hoist rack through hole. When the window moves to the end, the end of the rack will contact the touch switch to stop the motor

the hoist generates relative motion through the meshing of gear and rack. In order to ensure the stability of motion, the rack is designed as double-sided teeth, which are not easy to be damaged due to friction. As shown in Figure 4, when the window is opened and closed to the end, it is easy to cause damage to the hoist and the window due to inertia. Therefore, spring devices for cushioning are designed respectively on the broken end of the rack. During operation, when the window moves to the end and touches the data display switch, the hoist contacts the buffer device. At this time, due to inertia, the window will continue to move, compress the spring and stop slowly, The rigid impact caused by emergency stop is prevented from damaging the window and hoist

4 conclusion

this paper designs an intelligent window opener for translational windows, which collects information through sensors, automatically opens the window when the indoor toxic gas (C0, CH4) exceeds the standard, and automatically closes the window when it rains, blows strong winds or noise passes through people. The infrared remote control function is designed, so that the old and children can easily open and close the windows. It effectively transmits motion through gear rack meshing, and has a buffer structure. Its performance is reliable, easy to install, and has a better use value