CN216341820U

CN216341820U - Shutter blind winder

Info

Publication number: CN216341820U
Application number: CN202122196392.1U
Authority: CN
Inventors: 邱永忠
Original assignee: Jady Window Coverings Technology Co ltd
Current assignee: Jady Window Coverings Technology Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-04-19
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a shutter cord winder, which comprises a shell, a driving assembly, a winding reel and an elastic sheet, wherein the winding reel is rotationally connected to the shell, the driving assembly is used for driving the winding reel to rotate, the winding reel can move up and down, the elastic sheet is arranged at the bottom of the winding reel, the shell is provided with a brake pad, the brake pad is arranged at the top of the winding reel, and the winding reel can be in contact with at least one of the elastic sheet and the brake pad. The utility model integrates the functions of coiling and end limiting, when the blind is lowered to the end and blocked by other objects, the load on the coiling drum is reduced, and the coiling drum is slightly lifted upwards under the driving of the elastic sheet and is contacted with the brake pad, thereby preventing the coiling drum from continuously rotating to cause damage. The utility model relates to the technical field of wire reels.

Description

Shutter blind winder

Technical Field

The utility model relates to a shutter blind winder in the technical field of winders.

Background

The currently used blind winding system generally comprises a winder and a limiter. The winder is responsible for lifting the rope and convoluteing, and the stopper is used for guaranteeing to wind direction unanimous to prevent that the winder from continuing to wind and leading to the blind damage when the blind moves to upper and lower limit. However, since the cord reel and the stopper are separately provided, this increases the cost of the cord winding system and also limits the minimum size of the cord winding system.

Moreover, whether each blade in the blind can keep the same turnover angle is a pain point in the industry. The existing winder generally adopts a conical winding reel, one end of a lifting rope is fixed at one end of the conical winding reel, and the lifting rope is wound on the conical outer surface of the winding reel. However, if the lifting rope is not tightly wound in the winding process, the winding speed of the lifting rope on a plurality of reels on a pair of venetian blinds is uneven, so that the lifting heights of the blades are different, and the using effect and the quality of the venetian blinds are seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve at least one technical problem in the prior art and provides a shutter cord winder which integrates the functions of winding and limiting the tail end.

According to the embodiment of the utility model, the blind curtain winder comprises a shell, a driving assembly, a winding reel and an elastic sheet, wherein the winding reel is rotatably connected to the shell, the driving assembly is used for driving the winding reel to rotate, the winding reel can move up and down, the elastic sheet is arranged at the bottom of the winding reel, the shell is provided with a brake pad, the brake pad is arranged at the top of the winding reel, and the winding reel can be in contact with at least one of the elastic sheet and the brake pad.

According to an embodiment of the present invention, further, the driving assembly includes a clutch, the clutch being disposed coaxially with the spool in rotation, the clutch being capable of contacting the spool.

According to the embodiment of the utility model, further, the clutch is provided with a first limiting step, the winding reel is provided with a second limiting step, and the first limiting step can be in contact with the second limiting step.

According to the embodiment of the utility model, the winding reel comprises a winding reel body and a limiting ring, the limiting ring is fixedly connected to one end of the winding reel body, and the limiting ring can be in contact with at least one of the elastic sheet and the brake pad.

According to the embodiment of the utility model, the clutch further comprises a clutch body and a rotation stopping slider, wherein an accommodating space is formed in one end of the clutch body, the rotation stopping slider can slide in the accommodating space, the rotation stopping slider can be exposed out of the accommodating space and is in contact with the shell, and the limiting ring can drive the rotation stopping slider to slide.

According to the embodiment of the utility model, the rotation stopping slide block is provided with a first shifting block, the limit ring is provided with a second shifting block, and the first shifting block can be in contact with the second shifting block.

According to the embodiment of the utility model, further, the clutch further comprises an elastic member, and two ends of the elastic member are respectively connected to the clutch body and the rotation stopping slider.

According to the embodiment of the utility model, further, the driving assembly further comprises a turning blade cylinder, the turning blade cylinder and the clutch are coaxially and rotatably arranged, the clutch is provided with a third limiting step, the turning blade cylinder is provided with a fourth limiting step, and the third limiting step can be in contact with the fourth limiting step.

According to an embodiment of the present invention, further, the spool includes a spool body provided with a large diameter end and a small diameter end, the diameter of the large diameter end being larger than the diameter of the small diameter end.

According to the embodiment of the utility model, further, the winding reel further comprises a wire guiding ring, and the wire guiding ring is connected with the winding reel body in a sliding mode.

The embodiment of the utility model has the beneficial effects that: the utility model integrates the functions of coiling and end limiting, when the blind is lowered to the end and blocked by other objects, the load on the coiling drum is reduced, and the coiling drum is slightly lifted upwards under the driving of the elastic sheet and is contacted with the brake pad, thereby preventing the coiling drum from continuously rotating to cause damage.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the utility model, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

FIG. 1 is a block diagram of an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of a housing in an embodiment of the utility model;

FIG. 4 is a schematic view of the connection of the spool and the clutch in an embodiment of the present invention;

FIG. 5 is a schematic illustration of the connection of the clutch and the flipper cartridge in an embodiment of the present invention;

FIG. 6 is an enlarged partial view of the clutch end in an embodiment of the present invention;

FIG. 7 is an enlarged view of a portion of a stop collar according to an embodiment of the present invention;

fig. 8 is a schematic view of the connection between the spool body and the wire loop according to the embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 2, the blind winder according to the embodiment of the present invention includes a housing 1, a driving assembly 2, a winding reel 3, and a resilient plate 4. Specifically, the case 1 includes a case and a base, and plays a role of wrapping and protecting the reel structure. The winding reel 3 is rotatably connected with the shell 1, the driving assembly 2 is used for driving the winding reel 3 to rotate, in some embodiments, the driving assembly 2 is a motor, and a motor shaft is linked with the winding reel 3 so as to drive the winding reel 3 to wind the lifting rope; in this embodiment, the driving assembly 2 is a column structure, one end of which is linked with the winding reel 3, and the other end of which is wound with the cord, so that the user can drive the winding reel 3 to rotate by pulling the cord, and at this time, the driving assembly 2 is used as a transmission mechanism.

The connection of the spool 3 to the housing 1 is not fixed, and specifically, the housing 1 is provided with a chute in which a support shaft of the spool 3 is supported in an up-down direction so that the spool 3 can move up and down along the chute. The elastic sheet 4 is arranged in the shell 1 and is arranged at the bottom of the winding reel 3, and the surface of the elastic sheet 4 is smooth. Referring to fig. 3, the housing 1 is provided with a brake pad 11, the brake pad 11 is disposed on the top of the spool 3, and the surface of the brake pad 11 is rough. The spool 3 can contact at least one of the spring plate 4 and the brake block 11. When the blind works normally, the winding reel 3 bears the pulling force of the lifting rope, so that the winding reel 3 is pressed onto the elastic sheet 4, the winding reel 3 is not in contact with the brake pad 11, and the winding reel 3 can be driven to rotate normally; when the blind is transferred to touch the barrier, the rope lifting tension borne by the winding reel 3 is reduced, the winding reel 3 is driven by the elastic force of the elastic sheet 4 to move upwards, so that the winding reel 3 rubs with the brake block 11 to play a braking role, and the winding reel 3 is prevented from continuing to rotate to cause the blind to touch other objects.

Further, the driving assembly 2 includes a clutch 21, the clutch 21 is coaxially and rotatably disposed with the spool 3, and the clutch 21 can contact the spool 3 and drive the spool to rotate by friction. In some embodiments, the clutch 21 engages an end of the spool 3, and the clutch 21 drives the spool 3 to rotate by end friction. In the present embodiment, the clutch 21 is cylindrical and is sleeved in the winding reel 3, and the clutch 21 is attached to the inner wall of the winding reel 3. When the blind curtain works normally, the clutch 21 drives the winding reel 3 to rotate through the friction force with the winding reel 3; when the blind touches an obstacle to cause the brake block 11 to limit the rotation of the winding reel 3, the clutch 21 and the winding reel 3 rotate relatively, so that the winding reel 3 cannot wind a lifting rope, and the tail end limiting effect is achieved.

Referring to fig. 4, the clutch 21 is provided with a first limit step 211, the spool 3 is provided with a second limit step 31, and the first limit step 211 can contact the second limit step 31, and the spool 3 can be linked with the clutch 21 by friction force between the first limit step 211 and the second limit step 31. The clutch 21 has a smaller contact area with the spool 3, and the frictional force between the clutch and the spool can be easily adjusted.

Further, the spool 3 comprises a spool body 32 and a limiting ring 33, the limiting ring 33 is fixedly connected to one end of the spool body 32, and the limiting ring 33 can be in contact with at least one of the spring plate 4 and the brake pad 11. Specifically, the limiting ring 33 can be made of a wear-resistant material, and the brake pad 11 and the resilient plate 4 are respectively located on the upper side and the lower side of the limiting ring 33 to prevent the winding reel 3 from deviating due to different positions of the upper acting force and the lower acting force during braking.

Referring to fig. 6, the clutch 21 further includes a clutch body 212 and a rotation stop slider 213, wherein one end of the clutch body 212 is provided with a receiving space 2121, the rotation stop slider 213 can slide in the receiving space 2121, and the rotation stop slider 213 can be partially exposed out of the receiving space 2121, and the exposed part can contact with the housing 1 to limit the clutch 21 from rotating continuously.

Referring to fig. 7, the stop ring 33 can drive the stop slider 213 to slide, specifically, the stop slider 213 is provided with a first shifting block 2131, and the stop ring 33 is provided with a second shifting block 331. One end of the clutch body 212 is provided with a slit, and the first block 2131 is exposed from the slit and abuts against the second block 331. When the retainer ring 33 is braked by contact with the brake pad 11, the retainer ring 33 and the clutch body 212 rotate relatively, and the second shifting block 331 contacts with the first shifting block 2131 and pushes out the rotation stop slider 213. The rotation stop slider 213 is in contact with the housing 1, and the clutch body 212 cannot rotate continuously, thereby limiting the clutch 21.

Further, the clutch 21 further includes an elastic member 214, and both ends of the elastic member 214 are connected to the clutch body 212 and the rotation stop slider 213, respectively. The elastic element 214 is normally in a contracted state for driving the rotation stopping slider 213 to be accommodated in the accommodating space 2121. When the rotation stop slider 213 is pushed out, the elastic member 214 is stretched; when the restriction is released, the elastic member 214 pulls the rotation stop slider 213 back into the accommodating space, preventing the rotation stop slider 213 from preventing the normal rotation of the clutch body 212.

Referring to fig. 5, further, the driving assembly 2 further includes a vane cylinder 22, the vane cylinder 22 is coaxially and rotatably disposed with the clutch 21, and the vane cylinder 22 is rotatably connected in the housing 1 through a rolling bearing. The clutch 21 is provided with a third limit step 215, the turning cylinder 22 is provided with a fourth limit step 221, and the third limit step 215 can be in contact with the fourth limit step 221. Each blade on the blind is connected with the combined aluminum bar, and the blade turning cylinder 22 is connected with the combined aluminum bar. When the third limiting step 215 is not in contact with the fourth limiting step 221, the blade overturning barrel 22 is rotated, and the overturning of each blade can be controlled through the linked aluminum bar, so that the adjustment of the blade angle is realized. When the third limiting step 215 is in contact with the fourth limiting step 221, the turning cylinder 22 is rotated continuously, so that the clutch 21 and the winding cylinder 3 can be driven to rotate jointly, and the expansion or contraction of the blind can be realized.

Referring to fig. 8, the spool 3 further includes a spool body 32, the spool body 32 is provided with a large diameter end 321 and a small diameter end 322, and the diameter of the large diameter end 321 is larger than that of the small diameter end 322. The lifting rope is wound from the large-diameter end 321, and along with the winding, the lifting rope section wound firstly is pushed to the small-diameter end 322 by the lifting rope section wound secondly, so that the lifting rope is tightly wound.

Moreover, the limiting ring 33 is installed at the small-diameter end 322 of the spool body 32, when the lifting rope is completely released, the weight borne by the small-diameter end 322 is smaller, so that the small-diameter end 322 slightly upwarps to enable the limiting ring 33 to be in contact with the brake pad 11, the braking effect is achieved, and the spool 3 is prevented from being continuously wound after the lifting rope is completely released.

Further, the spool 3 further comprises a wire guiding ring 34, the wire guiding ring 34 is connected with the spool body 32 through a sliding groove structure, and the wire guiding ring 34 can slide along the axial direction of the spool body 32. One end of the lifting rope is fixedly connected with the wire loop 34, and the wire loop 34 is used for guiding the lifting rope from the large-diameter end 321 to the small-diameter end 322 during winding, so that the winding process is more orderly.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the utility model as set forth in the claims appended hereto.

Claims

1. A blind winder, comprising: casing (1), drive assembly (2), reel (3) and shell fragment (4), reel (3) rotate connect in casing (1), drive assembly (2) are used for the drive reel (3) rotate, reel (3) can reciprocate, shell fragment (4) set up reel (3) bottom, casing (1) is equipped with brake block (11), brake block (11) set up reel (3) top, reel (3) can with shell fragment (4) at least one contact in the brake block (11).

2. The blind winder of claim 1, wherein: the driving assembly (2) comprises a clutch (21), the clutch (21) and the winding reel (3) are coaxially and rotatably arranged, and the clutch (21) can be in contact with the winding reel (3).

3. The blind winder of claim 2, wherein: the clutch (21) is provided with a first limiting step (211), the winding reel (3) is provided with a second limiting step (31), and the first limiting step (211) can be in contact with the second limiting step (31).

4. The blind winder of claim 2, wherein: the winding reel (3) comprises a winding reel body (32) and a limiting ring (33), the limiting ring (33) is fixedly connected to one end of the winding reel body (32), and the limiting ring (33) can be in contact with at least one of the elastic sheet (4) and the brake pad (11).

5. The blind winder of claim 4, wherein: the clutch (21) comprises a clutch body (212) and a rotation stopping sliding block (213), an accommodating space (2121) is formed in one end of the clutch body (212), the rotation stopping sliding block (213) can slide in the accommodating space (2121), the rotation stopping sliding block (213) can be exposed out of the accommodating space (2121) and is in contact with the shell (1), and the limiting ring (33) can drive the rotation stopping sliding block (213) to slide.

6. The blind winder of claim 5, wherein: the rotation stopping sliding block (213) is provided with a first shifting block (2131), the limiting ring (33) is provided with a second shifting block (331), and the first shifting block (2131) can be in contact with the second shifting block (331).

7. The blind winder of claim 6, wherein: the clutch (21) further comprises an elastic piece (214), and two ends of the elastic piece (214) are respectively connected to the clutch body (212) and the rotation stopping sliding block (213).

8. A blind winder as claimed in any one of claims 2 to 7, wherein: the driving assembly (2) further comprises a leaf turning cylinder (22), the leaf turning cylinder (22) and the clutch (21) are coaxially arranged in a rotating mode, a third limiting step (215) is arranged on the clutch (21), a fourth limiting step (221) is arranged on the leaf turning cylinder (22), and the third limiting step (215) can be in contact with the fourth limiting step (221).

9. The blind winder of claim 1, wherein: the winding reel (3) comprises a winding reel body (32), wherein the winding reel body (32) is provided with a large-diameter end (321) and a small-diameter end (322), and the diameter of the large-diameter end (321) is larger than that of the small-diameter end (322).

10. The blind winder of claim 9, wherein: the winding reel (3) further comprises a wire guiding ring (34), and the wire guiding ring (34) is connected with the winding reel body (32) in a sliding mode.