Giant folding umbrella

Abstract

The invention discloses a giant folding umbrella. Comprising a mast, a driving component arranged on the mast, a sliding ring, a telescopic boom and a supporting rod, wherein the sliding ring is axially and slidably arranged on the mast in a sleeving manner and is in power connection with the output end of the driving component; one end of the telescopic boom is rotationally connected with the sliding ring, and the telescopic length of the telescopic boom is adjustable; one end of the supporting rod is rotationally connected with the bottom of the mast, and the other end of the supporting rod is rotationally connected with a frame body of the telescopic boom; the inner ring of the umbrella cloth is annularly sleeved on the mast, and the outer ring of the umbrella cloth is connected to the tail end of the telescopic boom. Thus, through axial movement driving of the driving component to the sliding ring and supporting of the supporting rod to the telescopic arm frame, the telescopic arm frame can generate an overturning angle relative to the sliding ring, and therefore the umbrella opening and closing operation is achieved; moreover, after the telescopic arm frame is overturned to the umbrella opening angle, the telescopic length can be adjusted, so that the umbrella opening degree can be conveniently adjusted, and the telescopic length and the umbrella opening degree of the telescopic arm frame can be adaptively reduced according to factors such as real-time wind power grades and the like in windy weather.

Description

technical field [0001] The invention relates to the technical field of giant umbrellas, in particular to a giant folding umbrella. Background technique [0002] With the development of society, some square parks, patios between shopping malls, open-air stadiums, open-air construction sites, and even archaeological work have problems such as too many people or the environment needs to be isolated from direct sunlight and rain. In these scenes, strong sunlight and rain All have had a huge impact on the travel and work of the crowd, and it is necessary to take protective measures for these people to prevent them from being affected by the sun, rain and even other bad weather. [0003] At present, giant umbrellas are usually built in places such as open-air construction sites. The giant umbrella is a temporary construction umbrella. Its rib is not supported by fixed rods, and only relies on rope support for traction, and the rib can only be rotated and cannot be folded. . When...

AI Technical Summary

Problems solved by technology

[0003] At present, giant umbrellas are usually built in places such as open-air construction sites. This giant umbrella is a temporary construction umbrella. Its ribs are not supported by fixed rods and are only supported by ropes for traction, and the ribs can only rotate and cannot be folded.

When the ribs shrink, the height of the umbrella in the contracted state will be higher than that in the expanded state by about one frame height, which not only increases the overall height, but also leads to poor strength of the overall structure, and there are obvious defects in wind resistance

Although some beach umbrellas can realize the folding of the umbrella cloth, they need to pull the two connecting rods and the spring mechanism to assist in closing and opening the umbrella, which is limited by manpower, the operation process is inconvenient and troublesome, and requires a lot of physical strength

[0004] In the prior art, as an important protective device, folding umbrellas often need to be used in large areas in many places. When these places encounter severe weather such as heavy rainfall and strong winds, it is difficult for ordinary large parasols to guarantee both sunny and rainy uses. People's work and travel have been seriously affected

Traditional solutions, such as building construction sheds on construction sites, are difficult to build and time-consuming; or traditional giant umbrellas can be folded, but the operation of opening and closing them is cumbersome, and the process is cumbersome and inefficient. low

Moreover, the umbrella-like structure of the giant parasol only has two functional states, that is, a fully folded state and a fully unfolded state, and there is no or cannot be stabilized in a transitional state between the two, which means that the giant parasol or umbrella cannot be folded. Provide sunshade and rain protection function, or fully unfold, so that in sunny or rainy days with windy weather, the wind resistance of giant umbrellas is poor, and the umbrella body is easy to shake, posing a safety hazard; if you want to avoid safety hazards , the giant parasol can only be fully folded in windy weather, but in this way it cannot provide users with sunshade and rain protection

Images