Ventilating structure of mobile darkroom for developing black-and-white photos

Abstract

The invention discloses a ventilating structure of a mobile darkroom for developing black-and-white photos. The ventilating structure comprises a hole, window cloth, a light-shading bag and a supporting mechanism, wherein the hole is formed in a wall of the mobile darkroom; the window cloth covers the hole and is fixedly arranged on the mobile darkroom; a plurality of air inlet holes are formed in the window cloth; a cloth ring is arranged on a back surface side of the window cloth and surrounds the air inlet holes; the length of the cloth ring is greater than or equal to the diameter of each air inlet hole; a bag opening of the light-shading bag surrounds the window cloth; the light-shading bag is fixedly connected to the back surface side of the window cloth; an air outlet hole is formed in the lower end of a side surface, which is perpendicular to the window cloth, of the light-shading bag; the light-shading bag can be opened or closed by the supporting mechanism; and the window cloth, the cloth ring and the light-shading bag are manufactured by light-shading cloth. By using the ventilating structure, fresh air can be provided for the mobile darkroom, chemical odor in the darkroom can be reduced, so that an air environment in the mobile darkroom is improved, and adverse effects on health of workers in the mobile darkroom are reduced.

Description

technical field [0001] The invention relates to a ventilation structure used in a mobile darkroom for developing black and white photos. [0002] Background technique [0003] Today, the world is entering a rapidly developing information age. There is no doubt that color images are more suitable for the requirements of the times, and can convey intelligence and information more accurately and truly, and are more popular with the public. It is also in such a world full of colors that black and white photography has deeply attracted countless photography lovers with its unique expressiveness and lasting vitality. Especially in recent years, art museums and professional photography galleries in European and American countries centered on the United States have exhibited and collected a large number of photographic works, most of which also focus on black and white photography. Of course, this is also the reason why black-and-white photography works are more excellent in terms...

AI Technical Summary

Problems solved by technology

[0007] There is no ventilation structure in these mobile darkrooms, but the chemical liquid (including developer and fixer and other raw materials used in the configuration) used in the darkroom has a relatively strong chemical smell, which will affect the work in the darkroom. adverse effects on the health of personnel

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