CN101021142B - Automatic release curtain fabric mechanism for roller blinds - Google Patents

Abstract

An automatic release curtain fabric mechanism for rolling blinds, characterized in that it consists of a curtain fabric winding/releasing mechanism fixed on the rolling shade frame, and a rolling curtain fabric releasing power mechanism connected with the curtain fabric winding/releasing mechanism , The rolling shutter release power mechanism consists of a shaft connected to the rolling shutter frame, a screw rod arranged at the end of the shaft, a sleeve threaded on the screw rod, a spring arranged on the shaft, and a spring connected to the free end of the spring The hook is formed, the fixed end of the spring is fixed on the shaft end, a buckle is arranged on the sleeve facing the hook, and the sleeve is connected with the curtain fabric reel. Compared with the prior art, the present invention has the advantage that the roller blind can automatically put down the curtain cloth wound on the curtain cloth reel without manually lowering a part of the roller blind.

Description

Automatic release curtain fabric mechanism for roller blinds

Technical field:

The invention relates to an accessory for curtains.

Background technique.

Existing curtains with curtains that automatically fall down, when the curtains need to be put away, the curtains are stored under the curtain frame in a folded manner. Therefore, multiple pull ropes are needed to pull the curtain cloth at the same time, and the actions of the pull ropes must be synchronized so that the curtain cloth can be retracted and retracted smoothly at the same time. Once one of the stay cords of this kind of curtain is disconnected, it will affect the normal retraction of the curtain cloth, and the exposed folded curtain cloth is also easy to store dust. In order to solve the above problems, people adopt the method of roller blinds to automatically put down the curtain cloth. The curtain cloth on the reel does not have downward power, and needs to manually put down a part of the roller blind earlier, so that the part of the curtain cloth that is put down utilizes its own gravity to pull down the curtain that is wound on the curtain cloth reel. Although this kind of curtain solves the shortcoming of folding and retracting the curtain, it is very inconvenient to operate because it needs to manually put down a part of the roller blind when putting the curtain.

Invention content:

The object of the present invention is to provide an automatic opening mechanism for a roller blind that can automatically put down the curtain cloth wound on the curtain cloth reel without manually lowering a part of the roller blind.

The present invention is achieved in this way. It is composed of a curtain cloth winding/releasing mechanism fixed on the roller blind frame, and a rolling blind cloth releasing power mechanism connected with the curtain cloth winding/releasing mechanism. The rolling blind cloth releasing power mechanism It consists of a shaft connected to the roller shutter frame, a screw rod set at the end of the shaft, a sleeve threaded on the screw rod, a spring set on the shaft, and a hook connected with the free end of the spring. The fixed end of the spring The utility model is fixed on the shaft end, a buckle is arranged on the cover facing the hook, and the cover is connected with the curtain cloth reel. When working, the curtain cloth reel is driven by the curtain cloth rewinding/release mechanism fixed on the roller blind frame to do the rewinding and rolling action of the curtain cloth. As the curtain cloth reel rotates, the sleeve connected with it also follows Rotate and move along the screw rod to the hook direction. When the rolling curtain is about to end, the sleeve also moves to the hook, so that the hook hooks the buckle of the sleeve, and the hook also rotates. At the end, the spring, driven by the hook, has also stored a certain amount of resilience; when it is necessary to release the curtain fabric wound on the curtain fabric reel, touch the curtain fabric rewinding/release mechanism, so that the curtain fabric reel is in the In the state of free rotation, at this time, under the action of the resilience of the spring, the hook drives the sleeve to release the rotation of the curtain fabric through the buckle, so that a part of the curtain fabric is released from the curtain fabric reel, and at the same time, the sleeve leaves the hook, so that the sleeve It no longer interacts with the hook. At this time, since part of the roller shade is released from the curtain fabric reel to form enough gravity, the roller shade is continuously pulled from the curtain fabric reel by the gravity of this part of the roller shade. Release until the curtain fabric winding/releasing mechanism is touched again, so that the curtain fabric reel is no longer in the free rotation state, thereby completing the action of automatically putting down the curtain fabric wound on the curtain fabric reel.

Here, the shaft is provided with a swivel, the protruding hook is arranged on the swivel, the end of the sleeve facing the swivel is provided with a hole matched with the swivel, and the protruding buckle is arranged in the hole. The hook is overlapped with the buckle in the sleeve hole through the swivel ring, which ensures that the hook can fasten the buckle and is not easy to disengage.

Compared with the prior art, the present invention utilizes the rebound force stored by the spring when the roller blind is rolled up as the initial power for releasing the roller blind. The advantage of being able to automatically unwind the curtain fabric wound on the curtain fabric roll.

Description of drawings:

Fig. 1 is a structural schematic diagram of the present invention.

Detailed ways:

Now in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

As shown in the figure, the present invention is composed of a curtain cloth winding/releasing mechanism 2 fixed on a roller blind frame 1, a roller blind cloth releasing power mechanism 3 connected with the curtain cloth winding/releasing mechanism 2, and the roller blind Cloth release power mechanism 3 is by the axle 3a that is connected together with roller shutter frame 1, the screw mandrel 3b that is arranged on axle 3a end, the cover 3c that is screwed on the screw mandrel 3b, the spring 3d that is arranged on the axle 3a, and spring The hook 3e1 that 3d free end is connected together, the fixed end of spring 3d is fixed on the axle 3a end, is provided with buckle 3c2 facing hook 3e1 place on the cover 3c, cover 3c and curtain cloth reel 4 are connected together.

A swivel 3e is provided on the shaft 3a, a protruding hook 3e1 is arranged on the swivel 3e, a hole 3c1 matching the swivel 3e is provided on the end of the sleeve 3c facing the swivel 3e, and a protruding buckle 3c2 is disposed in the hole 3c1.

The cover 3c is provided with an inlay groove 3c3, and the curtain fabric reel 4 corresponding to the inlay groove 3c3 is provided with an inlay guide rail 4a, and the cover 3c is positioned on the curtain fabric reel 4 through the inlay groove 3c3 and the inlay guide rail 4a, so that the cover 3c can only move axially along the curtain fabric reel 4 . The mosaic groove 3c3 of the cover 3c and the mosaic guide rail 4a of the curtain cloth reel 4 can be interchanged. The curtain fabric winding/releasing mechanism 2 is composed of a rotating mechanism 2a and a clutch mechanism 2b, and the rotating mechanism 2a is connected to the curtain fabric reel 4 through the clutch mechanism 2b. During use, when it is necessary to roll the curtain cloth on the curtain cloth reel 4, the clutch mechanism 2b is closed, and then the curtain cloth reel 4 is driven to rotate by rotating the rotating mechanism 2a, and the roller blind cloth is rolled on the curtain cloth reel 4 When it is necessary to put down the curtain cloth from the curtain cloth reel 4, the clutch mechanism 2b is separated, so that the curtain cloth reel 4 is in a free state, so that the roller blind cloth utilizes its own gravity from the curtain cloth reel 4 up and down.

Claims (1)

1. automatic release curtain cloth mechanism for roll screen, it is characterized in that by the casement rolling/relieving mechanism that is fixed on the roller shutter frame, the roller shutter cloth that links together with casement rolling/relieving mechanism discharges the actuating unit formation, roller shutter cloth discharges actuating unit by the axle that links together with the roller shutter frame, be arranged on the screw mandrel of axle head, be threaded in the cover on the screw mandrel, be arranged on the spring on the axle, the hook that links together with spring free end constitutes, axle is provided with change, hook is convex, the hook of convex is arranged in the change, spring free end links together by change and hook, the fixed end of spring is fixed on the axle head, put facing to the hook place and be provided with button, cover links together with the casement reel, that end that puts facing to change is provided with the hole that matches with change, button is convex and is arranged in the hole, cover is provided with mosaic groove, the casement reel of corresponding mosaic groove is provided with inlays guide rail, cover passes through mosaic groove, inlaying guide rail is positioned on the casement reel, casement rolling/relieving mechanism is by rotating mechanism, clutch constitutes, and rotating mechanism links to each other with the casement reel by clutch.

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