Environment-friendly shading device capable of automatically adjusting length according to illumination angle for glass window

Abstract

The invention relates to the technical field of glass window shading, and discloses an environment-friendly shading device capable of automatically adjusting the length according to the illumination angle for a glass window. The device comprises a shell, wherein sliding rails are arranged on the two side walls in the shell; a sliding plate is in sliding connection to the surfaces of the sliding rails; an elastic cover is fixedly connected to the surface of the sliding plate; a coil is movably connected into the elastic cover; a tooth plate is fixedly connected to the surface of the elastic cover; a lead screw is movably connected to the surface of the tooth plate; spring frames are movably connected to the positions, located on the two sides of the elastic cover, of the surface of the sliding plate; extrusion plates are movably connected into the spring frames; and bag-shaped plates are fixedly connected to the surfaces of the extrusion plates. A shading curtain is put down again, on the contrary, when light gradually leaves the surface of a photoresistor, the current in the coil is gradually reduced, the elastic force of the spring frames is gradually larger than the magnetic force of the coil, the lead screw is driven to reversely rotate to wind the shading curtain back, and the effect of automatically adjusting the shading position along with the illumination angle is achieved.

Description

technical field [0001] The invention relates to the technical field of shading for glass windows, in particular to an environmentally friendly shading device for glass windows that can self-adjust the length according to the illumination angle. Background technique [0002] The window is a part that connects the indoor and the outdoor. In order to facilitate people to control this connection, glass is often placed on the surface of the window. With the development of building technology, a large area of ​​glass is used in some office buildings. The existence of glass guarantees It not only improves the brightness of the room, but also enjoys the beautiful scenery outside the window. [0003] With the birth of glass windows, blackout curtains have been gradually developed by people. Although traditional refracting curtains can block sunlight, because the angle of sunlight will change over time, the changed angle of light will shine in. It affects the normal work of indoor pe...

AI Technical Summary

Problems solved by technology

[0003] With the birth of glass windows, blackout curtains have been gradually developed by people. Although traditional refracting curtains can block sunlight, because the angle of sunlight will change over time, the changed angle of light will shine in. It affects the normal work of indoor personnel. If the blackout curtain completely blocks the glass, it will cause the indoor light to be too low, and turn on the lights to waste energy. Therefore, an environmentally friendly shading device for glass windows that adjusts the length according to the angle of light came into being.

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