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Automatic pull-off slogan sheath

A wrapping and slogan technology, applied in the aviation field, can solve the problem that the slogan cannot be pulled off or entangled

Active Publication Date: 2022-02-11
CHINA HELICOPTER RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an automatic pull-off slogan cover, which can be automatically loosened when the helicopter is raised, and its corresponding counterweight, which solves the problem that the slogan cannot be pulled off or entangled due to the use of magic stickers in the existing slogan cover. risk issue

Method used

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  • Automatic pull-off slogan sheath

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Embodiment Construction

[0025] The automatic pull-off slogan bag provided by the present invention will be explained below in conjunction with the accompanying drawings.

[0026] figure 1 The structural representation of the automatic pull-off slogan bag provided by the present invention, as figure 1 As shown, the present invention provides an automatic pull-off slogan cover, including: a cover body 1 , a cover weight 2 , a slogan counterweight 3 and an upper friction block 4 .

[0027] Exemplarily, the bag body 1 is a strip-shaped structure with multiple openings at the lower end, made of canvas or denim, and segmented zippers are installed on both sides;

[0028] The package counterweight 2 is a cylinder made of cement, with a hook buried and the upper part of the hook exposed;

[0029] The slogan counterweight 3 is a cylinder made of metal, and the material can be selected from high-density metals such as steel or tungsten alloy according to the task;

[0030] The upper friction block 4 is made...

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PUM

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Abstract

The invention provides an automatic pull-off slogan sheath. The automatic pull-off slogan sheath comprises a sheath body (1), a sheath counterweight (2), a slogan counterweight (3) and an upper-end friction block (4). The upper-end friction block (4) is connected to an external suspension device of a helicopter, the bottom is connected with a slogan, and the bottom of the slogan is connected with the slogan counterweight (3). The sheath body (1) wraps the upper-end friction block (4), the folded slogan and the slogan counterweight (3), and the sheath counterweight (2) is arranged at the bottom of the sheath body (1). The friction force between the sheath body (1) and the upper-end friction block (4) is larger than the gravity of the sheath body (1) and smaller than the gravity of the sheath body (1) and the sheath counterweight (2). The sheath capable of automatically loosening when the helicopter rises and the corresponding counterweight solve the problem that a slogan cannot be pulled off or wound due to the fact that an existing slogan sheath is pasted through a hook-and-loop fastener.

Description

technical field [0001] The patent of the invention belongs to aviation technology, and specifically relates to an automatic pull-off slogan bag cover. Background technique [0002] When using a helicopter to hang large-format slogans, in order to prevent the slogans from being entangled under the action of the downwash of the rotor before and during take-off, it is necessary to wrap the slogans with a wrap and pull off the wrap when the slogan counterweight is off the ground . Whether the bag is pulled off smoothly is the key to the success of the slogan hanging display flight. If the pull-off fails, it may affect flight safety. [0003] At present, the slogan cover is designed with Velcro fastening. There is a pull-out rope connected to the upper part of the slogan cover. When the helicopter lifts the counterweight, the friction between the slogan and the slogan cover drives the slogan cover to be pulled up. , at this time, you need to manually pull the release rope from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F17/00G09F21/12
CPCG09F17/00G09F21/12Y02T50/40
Inventor 贺子豪曹紫菁曾兰婷宋美珍王璐爽杨维玉吴昊王伟
Owner CHINA HELICOPTER RES & DEV INST