Roller shutter door sheet and roller shutter door

Abstract

The invention discloses a roller shutter door sheet and a roller shutter door. The roller shutter door is applicable to openings of a building, a vehicle, a rail or a similar cincture, and is formed by the plurality of sheets connected with one another in series. The first end of the roller shutter door sheet has an inwards spiral shape, and the second end of the roller shutter door sheet has an arc shape matched with the inwards spiral shape of the first end, so that when two ends of the two adjoining sheets are connected with each other, and a second end of one sheet can be screwed into a first end along the inner spiral of the first end of the other sheet. According to the invention, the problem of a connecting end of the roller shutter door is deformed caused by encountering the wind force can be solved, and due to the reasonable design between the door sheet shape and the connecting part, the roller shutter door is higher in wind preservation performance, the wind resistance of the roller shutter door can be improved, the operation strength of operators on the basis of the original operation can be reduced, the service life of the roller shutter door can be prolonged, the use cost can be reduced, and the product performance can be improved.

Description

technical field [0001] This invention relates to fixed or movable closures for openings in buildings, vehicles, fences or similar enclosures, and in particular to rolling door sheets and rolling doors using the sheets. Background technique [0002] As a portable door body, the rolling door is usually fixed in the slideways on both sides of the building door body, and rotates around the reel above the door to complete the opening and closing of the rolling door. Rolling shutter doors can play the same role as walls, horizontally separating indoor and outdoor spaces, and are generally installed in places where it is inconvenient to use walls to separate them. Especially in places where the door opening is large and it is inconvenient to install the ground door body, the rolling shutter door can be opened conveniently and quickly. During the application process of the rolling door, in the case of strong wind, the surface of the rolling door forms a large force. Due to the hoo...

AI Technical Summary

Problems solved by technology

At the same time, the limit between the sheets is realized through the limit structure. If you want to obtain a unified limit position, you must ensure the processing accuracy when processing the limit structure. However, most of the sheets are formed by molds, and their precision is high Relying on the precision of the processing mold, and the gap between the hook head in its structure is narrow, on the one hand, the mold cannot meet the processing accuracy requirements, and at the same time, it also makes the corresponding position in the mold (also the main stress point) narrow, the width of this part Only the gap between the hooks is large, so when the hot aluminum block is extruded through the mold to make the sheet, the mold cannot meet the force requirements during extrusion at this position, and under the action of the extrusion force, it is easy to cause Fracture at the above narrow position

Therefore, it is difficult to realize the actual production of the patented product

[0006] Moreover, in the above-mentioned prior art, a hook-shaped loose-fit connection structure is adopted between the sheets of the rolling shutter door. Under the action of wind force, the hook-shaped end is easily deformed. There is still a large gap between the hook ends of the sheet due to the unimproved hook loose fit connection

Therefore, the above structure cannot well solve the problem of deformation and noise of the sheet under the action of wind force.

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