an outdoor projector
A projector and outdoor technology, applied in the field of outdoor projectors, can solve problems such as easy accumulation of dust and dirt, easy to burn the lens, etc., and achieve the effect of improving service life and reducing maintenance
Active Publication Date: 2022-03-22
深圳市科迈信息技术有限公司
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Problems solved by technology
[0003] Because the lens of the projector is exposed to the air for a long time, it is easy to accumulate dust and dirt, and it needs to be cleaned frequently. At the same time, when the sun shines on the lens during the day, because the lens is a convex lens, the lens will produce a concentrating effect when it is irradiated by sunlight, and it is easy to burn the lens.
Method used
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Embodiment 2
[0022] refer to Figure 2-3 The first telescopic airbag 4 is covered with a second telescopic airbag 6, and a sealed annular cavity 7 is formed between the first telescopic airbag 4 and the second telescopic airbag 6. The projector body 10 is located at the lens and is provided with two second telescopic airbags. The chute 3 and the two second chute 3 are provided with sliders 17, between the two sliders 17 is fixedly connected with a rubber scraper 16 which is always in contact with the lens, and the upper end of the slider 17 is fixedly connected with a third telescopic The airbag 5 and the third flexible airbag 5 communicate with the annular cavity 7 through the air guide tube 15 .
[0023] In the present invention, the first telescopic airbag 4 will drive the second telescopic airbag 6 to expand and contract when stretching, and the second telescopic airbag 6 will expand and contract so that the gas in the annular cavity 7 enters the third telescopic airbag 5 through the a...
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The invention discloses an outdoor projector, which comprises a housing and a projector body arranged in the housing, first sliding grooves are arranged in the inner walls of the left and right ends of the housing, and the first sliding grooves are slidably connected with A movable block, one end of which is located in the casing is fixedly connected to the side wall of the projector body. The present invention can retract the projector body into the housing during the day, effectively preventing the sunlight from shining on the lens, resulting in a concentrating effect, burning the lens, lowering the temperature at night, and shortening the first telescopic air bag due to the condensation of the low-boiling evaporative liquid, thereby making the projection The projector body protrudes from the housing; the lens on the projector body is cleaned by a rubber scraper to keep the lens clean and reduce people's daily maintenance; it adopts a purely mechanical structure, so compared with manual cleaning, this product It is safer and more stable, and there will be no hidden dangers of breaking the lens of the projector body, which improves the service life of the projector.
Description
technical field [0001] The invention relates to the technical field of projection equipment, in particular to an outdoor projector. Background technique [0002] A projector is an optical instrument that uses optical elements to magnify the outline of a workpiece and project it onto a screen. It can be used for profile measurement with transmitted light, and can also be used to measure the surface shape of a non-through hole and observe the surface of a part with reflected light. [0003] Because the lens of the projector is exposed to the air for a long time, it is easy to accumulate dust and dirt, and it needs to be cleaned frequently. At the same time, when the sun shines on the lens during the day, because the lens is a convex lens, the lens will produce a concentrating effect when it is irradiated by sunlight, and it is easy to burn the lens. . Contents of the invention [0004] The purpose of the present invention is to solve the shortcomings in the prior art, and ...
Claims
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IPC IPC(8): G03B21/14G03B21/54
CPCG03B21/145G03B21/54
Inventor 张超
Owner 深圳市科迈信息技术有限公司