CN2181560Y

CN2181560Y - Spiral torsion spring blind rolling device for rolling shutter door

Info

Publication number: CN2181560Y
Application number: CN 93237652
Authority: CN
Inventors: 陈启良; 王胡兰; 程钊
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-23
Filing date: 1993-09-23
Publication date: 1994-11-02
Anticipated expiration: 2003-09-23

Abstract

The utility model relates to a spiral torsion spring blind rolling device for a rolling door, which is mainly composed of a dead axle (1), a spiral torsion spring (2), a fixing screw (3), a rotating wheel (4), a fixing block (5) and bearing (6). The inventive main point of the utility model is that a spiral torsion spring is adopted to replace the driving mechanism of a spiral spring; spring arms (2-1) on the spring are fixed on one side of the rotating wheel, and the other end of the spring is fixed on the dead axle, which not only simplifies the mechanical structure of the rolling door, and causes the cost to be lowered, the material input to be reduced and the weight to be reduced but also causes the back-rolling force of the rolling door to be reinforced and the maintenance to be more convenient.

Description

Spiral torsion spring blind rolling device for rolling shutter door

The utility model is a kind of employed automatic curtain device on the rolling door that is used for, and belongs to the technical field of architectural decoration facility.

Rolling door has electronic and manual two kinds, and manually the automatic winder of rolling door common what adopt is that the sheet scroll spring is a power, not only volume is big for this sheet scroll spring, the cost height, and under the situation for rolling door bigger (promptly heavier), often to increase the quantity of scroll spring, promptly on spool, settle several scroll springs and spring case side by side, this has not only increased the total cost of rolling door greatly, and gives to install and also brought inconvenience.

It is little that goal of the invention of the present utility model provides a kind of volume, simple in structure, the rolling door that coiling moment is big helical torsional spring roller blind device.

Rolling door of the present utility model mainly is made up of dead axle (1), helical torsional spring (2), hold-down screw (3), runner (4), fixed block (5), bearing (6) with the helical torsional spring roller blind device, wherein helical torsional spring (2) is a wind spring, this spring housing is on dead axle (1), its spring arm (2-1) is fixed on the side of runner (4) with hold-down screw (3), and the end in addition of helical torsional spring is fixed on the dead axle (1).Dead axle (1) is fixed by fixed block (5), and roller shutter is around the outside of runner (4), and its inner is fixed on the runner.When roller shutter was pulled out, runner just had been with spring arm to rotate together, and helical torsional spring is tightened up, when unclamping the roller shutter of leaving behind because the helical torsional spring return action makes runner to counter-rotation, thus with roller shutter on runner.

Adopt rolling door of the present utility model helical torsional spring roller blind device, its advantage is that this coiler device is simple in structure, reliably, large volume annexes such as spring case used when in the past adopting scroll spring have been saved, and spring itself is also much smaller on volume than scroll spring in the past, weight is also light, has not only reduced production cost, and is convenient to installation and maintenance.In addition, the take-up force moment ratio scroll spring of this device is big, the reliability height.

Fig. 1 is a structural representation of the present utility model.

Embodiment of the present utility model is as follows:

In order to make roller blind device of the present utility model and existing each rolling door have versatility and replaceability, so the form of structure of dead axle (1), runner (4), fixed block (5), bearing (6) is the same with general scroll spring roller blind device.Helical torsional spring (2) adopts spiral cylindrical torsion spring, and its columniform internal diameter is slightly larger than the external diameter of dead axle (1), and as 3.2 meters of Men Gaowei, gate-width is 3.5 meters, and torsion spring adopts the 65Mn material, and the silk footpath be φ 7mm, and middle footpath is 100mm, and the number of turns is 32 to enclose.Fixing for the ease of spring is provided with spring arm (2-1) in the other end of this spring, this spring arm is fixed on the side of runner (4) by hold-down screw (3), and the other end of spring is fixed on the dead axle (1).During by dress, elder generation fixes main shaft (1) on the wall by fixed block (5) or on other object, makes the torsion spring pretwist earlier, roller shutter is installed on the outer rim of runner again, at this moment relies on the energy storage of torsion spring to make the roller shutter automatic drawing back, and is wound on the outer rim of runner.According to the above, just can form rolling door of the present utility model helical torsional spring roller blind device.

Claims

1, the roller blind device used of a kind of rolling door, spring by dead axle (1), runner (4), fixed block (5), bearing (6) and coiling usefulness is formed, it is characterized in that wind spring adopts helical torsional spring (2), this helical torsional spring (2) is enclosed within on the dead axle (1), its spring arm (2-1) is fixed on the side of runner (4) with hold-down screw (3), and the other end of helical torsional spring (2) is fixed on the dead axle (1).

2,, it is characterized in that helical torsional spring (2) adopts spiral cylindrical torsion spring generally according to the described rolling door of claim 1 helical torsional spring roller blind device.