A light-adjusting alignment winding mechanism

Abstract

The application discloses a light-adjusting alignment winding mechanism, which is mainly provided with a positioning ring for guiding the winding position of curtain cloth on both sides of a winding shaft of a curtain winding mechanism. When the curtain cloth is wound upward, the curtain cloth can be pushed back to the path of being wound flat on the winding shaft by touching the flange on the positioning ring, so that the curtain cloth can be hung down straight or wound.

Description

Technical Field

[0001] This invention relates to the field of cordless roller blind structures, and in particular to a light-adjusting rewinding mechanism that provides a way to keep the blind fabric straight when it is rolled up. Background Technology

[0002] Currently, common roller blind structures include Figure 1 As shown, there is basically an upper beam, with shaft covers on both sides of the lower end of the upper beam. A winding shaft is located between the two shaft covers, and a winding mechanism 4 is located inside the winding shaft. A curtain is provided on the aforementioned winding shaft. By pulling the lower beam of the curtain, the user can drive the winding shaft to rotate, causing the curtain to roll down and out. Therefore, it is quite safe and convenient to operate.

[0003] However, as Figure 2 As shown, the curtain fabric is naturally wound up by the winding shaft and the winding mechanism inside it. However, when the curtain fabric is wound upwards, it is easily affected by external forces and wound at an angle. Sometimes, the curtain fabric is unevenly wrapped on one side of the winding shaft, requiring user maintenance. Therefore, the existing structure is still imperfect and is a major drawback that urgently needs to be improved. Summary of the Invention

[0004] The main objective of this invention is to provide a dimming alignment and rewinding mechanism. Positioning rings are provided on both sides of the rewinding shaft of the blind mechanism to guide the rewinding position of the blind. When the blind is rewinding upward, it can touch the flange on the positioning ring and push the blind back to the path of rewinding upward and flat, thereby achieving the effect that the blind can be laid straight down or rewound.

[0005] The structure of the present invention includes: an upper beam, with a shaft cover at both ends below the upper beam, a winding shaft between the two shaft covers, the winding shaft being a hollow tube, and a winding mechanism inside the winding shaft; the upper beam also having a slot; a curtain fabric, with a rod at its top end, which is inserted into the slot, causing the curtain fabric to roll down or up as the winding shaft rotates; and a lower beam attached to the lower end of the curtain fabric; characterized in that:

[0006] A positioning ring is also provided between the take-up shaft and each shaft cover. The positioning ring is ring-shaped and has a locking part and a positioning part arranged sequentially from the inside to the outside. The aforementioned locking part is assembled inside the take-up shaft and is driven by the rotation direction of the take-up shaft to rotate in the same direction as the positioning part. The positioning part is ring-shaped and includes an inclined disc and multiple flanges protruding from the disc. The disc is inclined outward with the contact point between the locking part and the disc, so that the disc has a shape in which the thickness gradually decreases from the inside to the outside. The flanges are crescent-shaped and protrude from the disc, and these flanges are arranged in a ring on the disc.

[0007] In the state of the curtain unfolding, when the curtain is rolled up to the left and right, the curtain first contacts the disc part of the positioning ring, and then climbs along the flange of the positioning ring, and the curtain is pushed back to the right through the flanges, so that the curtain is kept flat and rolled up.

[0008] In the embodiment of the present application, the rolling mechanism is a pre-torsion spring.

[0009] In the embodiment of the present application, the rolling mechanism is a gear box.

[0010] In the embodiment of the present application, a plurality of flanges are arranged on the disc part.

[0011] In the embodiment of the present application, the inclination angle of the disc part is between 2° and 8°.

[0012] Through the above description, the present application can obtain the following effects and advantages: the structure of the present application is installed on the existing rolling curtain mechanism, so that the curtain can be flatly rolled down or rolled up, and the problem of curtain winding is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural diagram of the existing rolling curtain structure;

[0014] Figure 2 It is a state diagram of the curtain winding;

[0015] Figure 3 It is a whole structure diagram of the present application;

[0016] Figure 4 It is a structure exploded view of the present application;

[0017] Figure 5 It is a structure diagram of the positioning ring;

[0018] Figure 6 It is Figure 5 A-A part structure section view of;

[0019] Figure 7 It is a use schematic of the present application Figure I ;

[0020] Figure 8 It is a use schematic of the present application Figure II .

[0021] In the figure: 1, upper beam;

[0022] 11, slot;

[0023] 2, shaft cover;

[0024] 21, shaft tube;

[0025] 3. winding shaft;

[0026] 31. row of teeth;

[0027] 4. winding mechanism;

[0028] 41. connecting wheel;

[0029] 5. curtain;

[0030] 51. insertion rod;

[0031] 6. lower beam;

[0032] 7. positioning ring;

[0033] 71. clamping portion;

[0034] 72. positioning portion;

[0035] 721. disc portion. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] Please refer to Figure 3 、 Figure 4 The light-adjusting alignment winding mechanism of the present application mainly comprises an upper beam 1, two sets of shaft covers 2, a winding shaft 3, a winding mechanism 4, a curtain 5, a lower beam 6, and two sets of positioning rings 7.

[0038] As shown in Figure 3 、 Figure 4 , the upper beam 1 is provided with the shaft covers 2 at the lower ends of the two ends, and the winding shaft 3 is arranged between the two shaft covers 2. Further, the winding shaft 3 is connected through the shaft tubes 21 of the shaft covers 2 and rotates between the two shaft covers 2.

[0039] As shown in Figure 3 、 Figure 4 , the winding shaft 3 is a hollow tube, and the row of teeth 31 for connecting the winding mechanism 4 is arranged on the inner side of the winding shaft 3. In addition, the upper beam 1 is provided with an insertion slot 11 for connecting the curtain 5.

[0040] As shown in Figure 3 、 Figure 4As shown, the winding mechanism 4 is arranged inside the winding shaft 3, and the winding mechanism 4 is provided with a connecting wheel 41 connected to the gear teeth 31. When the winding shaft 3 rotates, the winding mechanism 4 is driven by the connecting wheel 41, thereby controlling the downward unwinding or upward winding of the curtain fabric 5. The winding mechanism 4 can adopt the gear box structure shown in the drawing, or a spring type unwinding mechanism or an electric motor mechanism can also be used in the present application.

[0041] As shown in Figure 3 , Figure 4 , the top end of the curtain fabric 5 is provided with a plug rod 51, which is inserted into the plug slot 11, so that the curtain fabric 5 can be unwound downward or wound upward when the winding shaft 3 rotates. The lower end of the curtain fabric 5 is provided with a lower beam 6, which is pulled by the user to make the curtain fabric 5 rise or fall.

[0042] As shown in Figures 3-6 , two positioning rings 7 are arranged between the shaft cover 2 and the winding shaft 3, as shown in Figure 5 , the positioning ring 7 is annular, and from inside to outside, it is provided with a clamping portion 71 and a positioning portion 72. The clamping portion 71 is combined in the winding shaft 3 and is driven by the winding shaft 3 to rotate in the same direction as the positioning portion 72. The positioning portion 72 is annular, and includes an inclined disc portion 721 and a plurality of flanges 722 protruding from the disc portion 721. Please continue to refer to Figure 5 , the disc portion 721 is inclined outward from the contact point between the clamping portion 71 and the disc portion 721, so that the disc portion 721 has a gradually thinning thickness from inside to outside. According to the applicant's experiment, the angle D of the disc portion 721 is between 2° and 8°. The flanges 722 are semilunar in shape and protrude from the disc portion 721. The flanges 722 are arranged in a ring on the disc portion 721.

[0043] As shown in Figure 7 , when the curtain fabric 5 is wound upward and deviates left and right, the curtain fabric 5 first contacts the disc portion 721 of the positioning ring 7, as shown in Figure 8 , the curtain fabric 5 continues to climb along the flanges 722 of the positioning ring 7, and the flanges 722 push the curtain fabric 5 back to the correct position, so that the curtain fabric 5 is wound upward in a straight and flat manner.

[0044] Accordingly, the positioning ring 7 arranged on both sides of the winding shaft 3 can guide the unwinding position of the curtain fabric 5. When the curtain fabric 5 is wound upward, it can be pushed back to the upward winding path by touching the flanges 722 of the positioning ring 7, thereby achieving the effect that the curtain fabric 5 can be unwound or wound straight downward.

[0045] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0046] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. A light-adjusting alignment winding mechanism, comprising: an upper beam, two shaft covers are arranged below both ends of the upper beam, a winding shaft is arranged between the two shaft covers, the winding shaft is a hollow tube, a winding mechanism is arranged inside the winding shaft, and the upper beam is provided with a slot; a curtain, a plug rod is arranged at the top end of the curtain, the plug rod is combined into the slot, so that the curtain produces downward winding or upward winding action with the rotation of the winding shaft, and a lower beam is combined at the lower end of the curtain; characterized in that, a positioning ring is further arranged between the winding shaft and the shaft cover, the positioning ring is annular, a clamping part and a positioning part are sequentially arranged from inside to outside, the clamping part is combined in the winding shaft, and the positioning part is driven to rotate in the same direction by the rotation direction of the winding shaft; the positioning part is annular, and the positioning part comprises an inclined disc part and a plurality of flanges protruding from the disc part, the disc part is inclined outward from the contact point between the clamping part and the disc part, so that the disc part has a gradually thinning thickness from inside to outside, the flanges are half-moon-shaped, protrude from the disc part, and are annularly arranged on the disc part. In use, when the curtain upwardly winds and produces left-right deviation, the curtain first contacts the disc part of the positioning ring, then climbs along the flanges of the positioning ring, and is pushed back to the correct position by the flanges, so that the curtain remains flat and wound. The winding mechanism is a pre-torsion spring.

2. The register winding mechanism for light adjustment according to claim 1, wherein The winding mechanism is a gear box.

3. The register winding mechanism for light adjustment according to claim 1, wherein A plurality of flanges are arranged on the disc part.

4. The register winding mechanism for light adjustment according to claim 1, wherein The inclination angle of the disc part is between 2° and 8°.

5. The register winding mechanism for light adjustment according to claim 1, wherein ​

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