Magnetic transmission manual driving device used for shutter with built-in hollow glass

Abstract

The invention discloses a magnetic transmission manual driving device used for a shutter with built-in hollow glass, and belongs to the technical field of sunshade hollow glass products. The device comprises a shell, a magnetic column driving transmission mechanism arranged in a shell cavity of the shell, a supporting seat arranged in a window body and corresponding to the shell, a magnetic columndriven transmission mechanism arranged in a magnetic column driven transmission mechanism containing cavity of the supporting seat and a bead chain manual operation mechanism. The device is characterized in that the device further comprises a power wheel axle torque increasing mechanism and a bead chain limiting mechanism, the power wheel axle torque increasing mechanism is arranged in the shellcavity, the magnetic column driving transmission mechanism is connected with the left side of the power wheel axle torque increasing mechanism, a bead chain manual operation mechanism is connected with the right side of the power wheel axle torque increasing mechanism, the bead chain limiting mechanism and an outer frame of the window body are fixed, and the bead chain manual operation mechanism is arranged on the bead chain limiting mechanism in a sleeving manner. Lightness and labor saving are embodied; a slideway in the cavity is omitted, and the lighting area is prevented from being occupied; the structure is simplified; the adaptability to a wide venetian blind is improved; and safety is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of sunshade hollow glass products, and in particular relates to a magnetic transmission manual drive device for built-in shutters of hollow glass. Background technique [0002] The aforementioned hollow glass built-in blinds mainly refer to but are not absolutely limited to double-layer insulating glass built-in blinds (the same below), for example, there are also multi-layer hollow glass built-in blinds such as three glass and two chambers. The built-in shutters of insulating glass have the following self-evident advantages: good heat insulation can reflect the energy saving of the building; excellent sound insulation performance can avoid the disturbance of external noise; Expected bright effect; through the adjustment of the deflection angle of the blinds, the required indoor lighting requirements can be obtained and the privacy can be protected; the venetian blinds (customarily referred to as "curtains")...

AI Technical Summary

Problems solved by technology

[0005] From the above description, it can be seen that if the slats of the venetian blind are to be turned over at a certain angle to meet the lighting requirements of the room and to raise or lower the venetian blind as required, the user must move the aforementioned external controller upward or downward. To achieve this, the operation mode brought about by this structure has become the default and accepted mode by the majority of users, but objectively, this operation mode has at least the following technical problems: First, if the aforementioned internal and external manipulators are separated from each other by the inner glass There is a mismatch between the suction force of the suction and the quality (weight) of the venetian blind located between the inner and outer glass. For example, if the suction force is too small, abnormal sliding will occur and the venetian blind cannot be reliably maintained at the desired raised position , On the contrary, it will make the operation laborious and blindly increase the cost of the inner and outer manipulators, because increasing the number of relatively expensive permanent magnets and / or increasing the volume of the permanent magnets will inevitably increase the cost significantly; secondly, as long as In the case of manually shifting the outer manipulator, it is relatively laborious, especially the larger the width of the venetian blind, the heavier the overall weight of the venetian blind, and the stronger the magnetic attraction force between the inner and outer manipulators. Strong, this is very embarrassing for the weak such as minors and the elderly; third, once the inner manipulator is affected by sliding such as displacement, deformation, and stagnation, it will be quite troublesome to repair , it needs to be repaired by the manufacturer or the original installer or professionals, and the repair usually needs to remove the inner glass, which requires a large amount of work, a long time, and high payment costs. It is precisely because of these factors that users are often unwilling to repair and instead Make do with it, making it a decoration or even a burden; Fourth, since it is necessary to provide a sliding channel for the inner manipulator, it will affect the lighting area to a certain extent

However, this patent has the defect that the structure is relatively complicated due to many action transmission links, and there is also the possibility of being strangled due to the free swing of the long and ring-shaped bead chain rope (used to be called "pull bead chain", the same below). Human limbs, especially the neck and neck of minors

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