Multimedia projection curtain with cleaning function

Abstract

The invention discloses a multimedia projection curtain with a cleaning function, and relates to the technical field of projection device cleaning. The multimedia projection curtain with the cleaning function comprises a rolling box, a winding drum is rotationally connected to the interior of the rolling box through a rotating shaft, a curtain body is wound around the exterior of the winding drum, a self-replacement dust sticking mechanism, a brushing mechanism and a dust collector are jointly installed between two opening and closing mechanisms from top to bottom in sequence, and a feeding piece is arranged on the upper portion of a bearing plate. According to the device, after a curtain is retracted and released for a certain number of times, the used dust sticking rod can be automatically taken down in time, and a new dust sticking rod can be automatically installed in time, so that the cleaning capacity of the curtain is always within a qualified cleaning range, it is guaranteed that the curtain can be always in a clean state, and the service life of the curtain is prolonged. In addition, invalid contact between the cleaning equipment and the curtain can be avoided, the situation of reverse pollution to the curtain is avoided, meanwhile, abrasion to the curtain is reduced, and the service life of the curtain is prolonged.

Description

technical field [0001] The invention relates to the technical field of cleaning of projection devices, in particular to a multimedia projection screen with cleaning function. Background technique [0002] Projection screens are one of the most commonly used products for projector peripherals. Projection screens are generally used in conjunction with projectors to obtain high-quality projection effects. Projection screens can generally be divided into two types: reflective and transmissive. Projection, transmission type is used for rear projection, and front projection screen is divided into flat screen and arc screen. When light is incident on the surface of transparent or translucent material, part of it is reflected and part of it is absorbed. Small holes, these concave holes are easy to collect dust during use, causing the surface of the projection screen to become dirty and affecting the viewing effect, so the screen needs to be cleaned in time after use. [0003] Most ...

AI Technical Summary

Problems solved by technology

[0002] Projection screens are one of the most commonly used products for projector peripherals. Projection screens are generally used in conjunction with projectors to obtain high-quality projection effects. Projection screens can generally be divided into two types: reflective and transmissive. Projection, transmission type is used for rear projection, and front projection screen is divided into flat screen and curved screen. When light is incident on the surface of transparent or translucent materials, part of it is reflected and part is absorbed. Small holes, these concave holes are easy to gather dust during use, making the surface of the projection screen dirty and affecting the viewing effect, so the screen needs to be cleaned in time after use

[0003] Most of the existing methods of cleaning dust from the curtain are to install two strip sponges at the outlet of the curtain in the storage box to contact the curtain, and use the friction between the strip sponge and the curtain to clean the dust accumulated on the surface of the curtain. However, after using this cleaning method for a long period of time, the inside of the strip sponge will be full of dust, which greatly reduces the ability to clean the dust on the surface of the screen, and even causes reverse pollution to the surface of the screen, and it is not harmful It is convenient to replace the strip sponge wiper, but it cannot maintain effective cleaning ability on the curtain all the time;

[0004] In addition, the cleaning part of the existing cleaning equipment is always in conflict with the surface of the screen, but it needs to be cleaned only when the screen is retracted. During the release process of the screen, since its surface is not in contact with the outside world, dust will not accumulate At this time, the contact between the cleaning part and the screen is ineffective contact, and it is easy to reversely smear the dust on the cleaning part on the screen to cause reverse pollution, and the cleaning part is always in contact with the surface wall of the screen, which is easy to accelerate the wear of the screen and reduce the wear of the screen service life

Images