A projector capable of adjusting height
A technology for adjusting height and projector, applied in optics, instruments, projection devices, etc., can solve the problems of difficult assembly, complicated mechanism, and inconvenient for users to use
Inactive Publication Date: 2009-03-04
QISDA CORP
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- Description
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Problems solved by technology
When the user wants to change the extension length of the adjusting foot 108, the user must provide an external force greater than the frictional force to effectively rotate the adjusting foot 108, which often makes the user feel quite laborious.
Furthermore, the user has to rotate the adjustment foot 108 many times before slightly raising or lowering the height of the projector 100, and the adjustment speed is quite slow, which causes inconvenience to the user in use.
[0004] Although other adjustment mechanisms have been proposed, they all have complex mechanisms, difficult assembly, and other problems to be solved
Method used
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[0026] The invention discloses a height-adjustable device. figure 2 A specific embodiment in accordance with the present invention is shown. In this embodiment, the device is a projector 200 . image 3 show figure 2 An exploded view of some components of the projector in the present invention, in order to more clearly illustrate the relative relationship between the components of the present invention. The projector 200 includes a base 220 , an actuating unit 240 , an adjusting unit 260 and an elastic unit 280 . The base 220 has a positioning unit 222 , an opening 224 and a guide piece 226 . It should be noted here that, for the convenience of description, other components of the projector are not shown in the drawings, but those skilled in the art should know that the base 220 can be used to accommodate other various components of the projector 200, such as Light bulbs, circuit boards, power supplies, etc. In addition, the projector 200 may further include an upper cov...
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The invention is a high regulating device, comprising a base, a drive unit, a regulating unit and an elastic unit, where the base has a locating unit and an opening; the drive unit is movably arranged on the base and has a first hole and a first fastening part, where the first hole holds the locating unit; the regulating unit is movably arranged in the base and passes through the opening and has plural second fastening parts; and the elastic unit is arranged in the first hole and between the locating unit and the drive unit. As the drive unit drives, the first and second fastening parts break away from each other to allow moving the regulating unit; and as the drive unit does not drive, the elastic unit applies a force to make the first fastening part fastened with a selected second fastening part to lock up the regulating unit.
Description
technical field [0001] The present invention relates to a height-adjustable device, in particular to a height-adjustable projector. Background technique [0002] At present, the trend of the world is constantly developing towards the era of multimedia, and everything requires sound and light effects, and the image output device is an indispensable device in this trend. There are many different types of image output devices on the market, including single-shot projectors, triple-shot projectors, slide projectors, projectors, and more. When a projector projects an image onto a screen, the height or level of the projection platform on which the projector is placed, such as a desktop, must be adjusted frequently to adapt to different image output environments. Therefore, there are usually height-adjustable adjustment feet on the bottom of the projector to prevent image distortion or distortion. [0003] like figure 1 shown, figure 1 It is a known projector with a rotary adju...
Claims
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IPC IPC(8): G03B21/14G03B21/00
Inventor 钟佳伸赵景汶萧圣耀
Owner QISDA CORP