Hydraulic pedal type telescopic ground-pulled double-screen projection screen

A projection screen and foot-operated technology, applied in the field of projection screens, can solve the problems of lack of telescopic and adjustment performance, and achieve the effects of simple structure, reduced floor space, and easy portability
CN110597007AInactive Publication Date: 2019-12-20TIANHE COLLEGE GUANGDONG POLYTECHNIC NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANHE COLLEGE GUANGDONG POLYTECHNIC NORMAL UNIV
Publication Date
2019-12-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a hydraulic pedal type telescopic ground-pulled double-screen projection screen. The hydraulic pedal type telescopic ground-pulled double-screen projection screen comprises a screen module, a storage module, a lifting module and a support module; the screen module is used for receiving light transmitted by a projector, and displaying the image at the same time; the storagemodule is connected with the screen module, and used for rolling the screen module and storing the screen module in a storage box; the storage module is connected with the lifting module; a hydraulicstructure is arranged below the lifting module; a control pressure rod below the lifting module is pressed, so that the storage module can be lifted and adjusted; the support module is connected withthe lifting module, arranged at the bottom of the lifting module, and used for fixing the lifting module; the support module can be unfolded and folded by pressing a folding and unfolding fixing button arranged on the support module; due to the lifting module with the hydraulic rod, the height of the screen can be adjusted simply and conveniently; and thus, the projection screen is simple in structure and convenient to carry.
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Description

technical field

[0001] The invention relates to the field of projection screens, in particular to a ground-pull double-screen projection screen that can be retracted by hydraulic pedals. Background technique

[0002] At present, the commonly used projection screens are mainly divided into: manual self-locking screens, electric screens, bracket screens, floor screens, and picture frame screens. Manual self-locking screens are very popular among consumers for their favorable price and easy installation. The disadvantage is that during long-term use, especially for screens over 80 inches, it is best not to choose manual screens, because the central pull-down force and other reasons will appear " V" type corrugation affects the flatness of the screen. For example, a projector screen disclosed by the publication number CN206725949U, when in use, the thin plate is unfolded to form a whole board, and after the reel is hung or fixed to the wall, the screen is pulled out from the ree...

Claims

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