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Portable self-supporting manual-lifting screen

A self-supporting, screen technology, applied in the direction of instruments, machines/stands, projection devices, etc., can solve the problems of inconvenient portability, complexity, large structure, etc., and achieve the effect of satisfying the deployment height, portability, and simple structure

Active Publication Date: 2010-06-09
GUANGZHOU GRANDVIEW CRYSTAL SCREEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the folding telescopic mechanism is larger than the telescopic pillar and has a complex structure, the folding telescopic mechanism is easily damaged when exposed, especially when it is carried, the two ends of the folding telescopic mechanism are easy to be damaged and other items are attached, so they are all installed in the casing. But this also increases the size of the lifting screen, which is not easy to carry

Method used

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  • Portable self-supporting manual-lifting screen
  • Portable self-supporting manual-lifting screen
  • Portable self-supporting manual-lifting screen

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Experimental program
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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the drawings.

[0034] The serial numbers and names of the drawings are as follows:

[0035] Lifting screen 1: Screen 2: Shell 3: Shell body 3A: End cap 3B: Foot 3C: Opening 3K: Upper lever support part 4: Upper lever 4A: Handle part 5: Handle cover 6: Square through hole 6A: Spring baffle 6B: Threaded part 6C: Bracket part 6D: Handle part 7: Unlocking device 8: Unlock push key part 8A: Engaging part 8B: Sliding guide groove 8C: Fixing frame 9: Sliding guide Column 9A: Through hole 9B: Screw 10: Return spring 11: Front base 12: Engaged part 12A: Rear base 13: Engaged part 13A: Supporting part 13B: Foldable telescopic mechanism 14: Hinge connection part 15 : Upper hinge part 16: Tension guide groove 16A: Unfolding position restriction convex part 16B: Friction part 16C: Lower hinge part 17: Tension guide groove 17A: Unfolding position restriction support part 17B: Friction part 17C: Screw 18: Nut 19: ...

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Abstract

The invention discloses a portable self-standing manual lifting screen which is belong to the field of a screen device or apparatus used for projection or watching. The portable self-standing manual lifting screen consists of a shell, a foldable telescoping mechanism, a screen, an upper pull rod and a drum part, one end of the screen is connected with the upper pull rod, the other end is coiled bythe elastic force of the drum and is arranged on the drum; one end of the foldable telescoping mechanism supports the upper pull rod in the manner of axle suspension, and the other end is in pivot connection with a base part on the back side of the shell, an assist part are arranged on the foldable telescoping mechanism, a protection part of the foldable telescoping mechanism is arranged on the back side of the shell along the length direction of the shell, the foldable telescoping mechanism is pronated on the back side on the shell and parallel with the length direction of the shell, a hingeconnection part for an upper bar and a lower bar of a left arm and a right arm of the foldable telescoping mechanism is arranged in the protection part, a handle arranged on the central part of the upper pull rod is a clamping part, when being packed, a clamped part arranged on the central part of the shell is clamped by the clamping part to form a transportable screen device. The portable self-standing manual lifting screen has simple structure, convenient use, being capable of meeting the unfold height of the screen, small volume and being convenient for carrying.

Description

Technical field [0001] The invention relates to a portable self-supporting manual lifting screen, which belongs to the field of screen devices or equipment for projection or viewing, and particularly relates to a portable self-supporting manual lifting screen. Background technique [0002] Chinese patent application CN03811687.1 discloses a self-supporting manual lifting screen, which is constituted as follows, including a housing, a folding telescopic mechanism, a screen, an upper rod, a reel and other components. One end of the screen is connected to the upper rod, and the other end is installed on the reel by the elastic force of the reel. The reel used for curling the screen is installed in the shell with the curling force applied. One end of the folding telescopic mechanism shaft supports the upper rod. , The other end is pivotally connected with the housing base part. The booster component is installed on the foldable telescopic mechanism and can support the upper pull rod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/58F16M11/00
Inventor 杨国强
Owner GUANGZHOU GRANDVIEW CRYSTAL SCREEN CO LTD
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