A projection screen rack for mobile projection

A technology of screen and projection, which is applied in projection devices, machines/brackets, supporting machines, etc. It can solve the problems of inconvenient erection and lack of matching brackets, etc., and achieve good promotion and application prospects, low use cost, and convenient installation.

Inactive Publication Date: 2006-02-08
梁坚平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to provide a mobile projection screen bracket that is easy to carry and easy to install, to overcome the disadvantages of the existing projection screens in the mobile projection that there is no supporting bracket and cannot be conveniently erected, so that the projection screen can be used in any place For quick installation

Method used

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  • A projection screen rack for mobile projection
  • A projection screen rack for mobile projection
  • A projection screen rack for mobile projection

Examples

Experimental program
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Embodiment Construction

[0014] A support for a mobile projection projection screen, comprising a double-head telescopic support tube 1, a central axis bolt 2, a connecting pull rope 3, a traction pull rope 4, and a ground anchor block 5. It is characterized in that: there is a via hole 6 at the center of 1 / 2 of each double-ended telescopic support tube 1, and the central axis bolt 2 connects 8 double-ended telescopic support tubes 1 side by side through the via hole 6; each double-ended telescopic support tube 1 The telescopic support tube 1 is composed of 7 short-section tubes 7 with different diameters that can be inserted into each other. The diameter of the thinnest to thickest short-section tube is 19-28mm. The longest extension length of the double-ended telescopic support tube 1 is 7m , the shortest retracted length is 1.3m; a positioning touch bead 8 is provided on the top of each short pipe 7 of the double-ended telescopic support pipe 1, and a hanging ring 9 is provided on the top of the mos...

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PUM

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Abstract

The invention relates to a flow projecting screen brace which comprises a double-head telescopic brace pipe, a middle shaft bolt, a connecting lasher, a drawing lasher and a ground anchor block. It is characterized in that each double-head telescopic brace pipe possesses a hole in the middle of the pipe; the middle shaft bolt uses the hole to connect the 2-16 double-head telescopic brace pipes; it uses the impact of the connecting lasher to connect the end of all of the double-head telescopic brace pipes so that it forms a square frame. It covers and fixes the projecting screen on the square frame; one end of the drawing lasher is connected with the end of the longest double-head telescopic brace pipe; the other end is connected with the ground anchor block, which can vertically drag the screen brace of the square frame.

Description

technical field [0001] The invention belongs to a projection screen erecting device, in particular to a mobile projection projection screen bracket. Background technique [0002] With the development and popularization of digital video projectors, more and more users need to use screen projections to carry out mobile publicity and entertainment activities in open places. Since the projection screen not only needs to be erected to a certain height during projection, but also needs to be leveled and standardized, the on-site hanging installation of the screen is a seemingly simple but tricky thing to do. There is no special supporting mobile projection screen support at present. The traditional erection method is: or use existing supports such as electric poles, tree poles, buildings for suspension, or dig holes and plant poles for suspension on site, which is very inconvenient to erect. Moreover, it is generally difficult to find available existing supports in squares that c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/56G03B21/54F16M11/00
Inventor 梁坚平
Owner 梁坚平
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