Transverse self-locking shutter door and window curtain sheet

Abstract

The invention relates to a part in a mechanical device, in particular to a part in a shutter door and window. A transverse self-locking shutter door and window curtain sheet consists of a curtain sheet body 3, an upper hook body 1 and a lower hook body 2, wherein the curtain sheet body 3 is a hollow body, the lower hook body 2 is a hollow body, the outer surface and the inner surface of the lower hook body 2 are connected into a whole with the outer surface and the inner surface of the curtain sheet body 3, the thickness of the lower hook body 2 is greater than or equal to that of the curtain sheet body 3, the hollow body of the curtain sheet body 3 is separated from the hollow body of the lower hook body 2 through a separating blocker arranged at the upper end of the lower hook body 2, the lower part of the lower hook body 2 is in an open structure, the inner side is provided with an upward hook 5 engaged with the upper hook body 1, the upper hook body 1 is positioned at the upper part of the curtain sheet body 3 and consists of two parts including an upward extending body and an upper hook 4, the upward extending body is respectively connected into a whole with the upper hook 4 and the curtain sheet body 3, a positioning shaft 6 is arranged between the upper hook 4 of the upper hook body 1 and the curtain sheet body 3, a positioning groove 7 is arranged in the corresponding position of the positioning shaft 6 and the upward hook 5 of the lower hook body 2, and the end head of the upward hook 5 near the positioning groove 7 is provided with a guide corner 8.

Description

technical field [0001] The invention relates to a part in a mechanical device, especially a part in a rolling shutter door and window. Background technique [0002] Chinese Patent Application No. 200820171467.2 discloses a "window shutter ventilation curtain mechanism", including a curtain, which is characterized in that the curtain includes a panel and a filling layer filled inside, and the upper side of the curtain is connected with an upper hook. Ventilation holes are opened on the upper hook body or the curtain sheet, and the lower hook body which can engage with the upper hook body is connected to the lower side of the curtain sheet. [0003] Chinese patent application No. 02276061.X discloses an "automatic lock for rolling shutter doors". There is a deadbolt connecting rod positioning pile on the top; the deadbolt connecting rod positioning pile is opened between the connecting pin, the deadbolt connecting rod and the connecting pin, which is the side position of the ...

AI Technical Summary

Problems solved by technology

2. The precise locking of the curtain cannot be realized

Although the production process is simple but the process is cumbersome

Insert the end cards at both ends of the curtain sheet of the rolling shutter, and then drill more than two holes on the inner contact surface of the curtain sheet and the end card, and connect and fix the end cards on the curtain sheet with rivets. Every link is easy to cause errors.

Often stuck during installation

3. High production cost

At present, except for the entrance door, there is no mandatory standard size for door openings of other categories in my country. The door openings are not uniform, resulting in many specifications of rolling shutter doors and windows, and almost few products of the same specification. It is impossible to realize mechanical automation production, and the horizontal direction of the curtain can only be realized manually. locking

In recent years, with the continuous rise of labor costs, the cost will become higher and higher

4 If due to measurement errors, it is difficult to remedy the installation site and the cost of the remedy is high

5. Most of the end cards are made of nylon and plastic, which are vulnerable parts and need to be replaced frequently, resulting in high maintenance costs

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