CN215859915U - Curtain body transmission mechanism of curtain without stay cord - Google Patents
Curtain body transmission mechanism of curtain without stay cord Download PDFInfo
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- CN215859915U CN215859915U CN202122398652.3U CN202122398652U CN215859915U CN 215859915 U CN215859915 U CN 215859915U CN 202122398652 U CN202122398652 U CN 202122398652U CN 215859915 U CN215859915 U CN 215859915U
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Abstract
The utility model discloses a curtain body transmission mechanism of a curtain without a stay cord, which is characterized in that: the winding unit comprises two coil spring wheels and a coil spring, wherein the edge of each coil spring wheel is provided with a tooth-shaped structure and the coil spring is meshed with the tooth-shaped structure; the rope pulling wheel is hinged relative to the base, a tooth-shaped structure is arranged on the outer edge of the rope pulling wheel and meshed with the spring coiling wheel, and the rope pulling wheel can be driven to synchronously rotate by the winding unit through meshing transmission; the guide unit comprises a first roller hinged relative to the base, the first roller is sleeved with the pull rope, and the pull rope extends out of the base and is connected with the lower beam. The utility model discloses a curtain body drive mechanism utilizes the rotation of gyro wheel, can make stay cord reciprocating motion guarantee that the wire winding is even and smooth and easy, has avoided the stay cord winding and the curtain body to use uneven scheduling problem of height, and above-mentioned structure has still increased the setting in spacing hole, and the installation is simpler, sparingly debugs the step.
Description
Technical Field
The utility model relates to the technical field of curtain without pull ropes, in particular to a curtain body transmission mechanism of a curtain without pull ropes.
Background
The curtain is mainly characterized in that a pull rope is used to drive the curtain body to change in height so as to achieve the effects of unfolding and folding, and the pull-rope-free curtain is used to apply pushing or pulling force to the lower beam by hands so as to enable the curtain body to be unfolded or folded. The curtain body transmission mechanism of the existing curtain without the pull rope has a complex structure and cannot provide ideal transmission effect for the curtain body.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems of the existing curtain without the stay cord, the utility model provides the curtain body transmission mechanism of the curtain without the stay cord, which can ensure that the winding of the stay cord is uniform and smooth by the reciprocating motion of the stay cord, and avoids the problems of the winding of the stay cord, uneven height of the curtain body in use and the like.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a curtain body transmission mechanism of a curtain without a stay cord is characterized in that: the winding device comprises a base, a winding unit, a rope pulling wheel, a guide unit, a pull rope and a lower beam, wherein the winding unit comprises two coil spring wheels and coil springs, the edges of the coil spring wheels are provided with tooth-shaped structures and are meshed with each other, the coil spring wheels are hinged to the base, and the coil springs are sleeved on the coil spring wheels; the rope pulling wheel is hinged relative to the base, a tooth-shaped structure is arranged on the outer edge of the rope pulling wheel and meshed with the spring coiling wheel, and the rope pulling wheel can be driven to synchronously rotate by the rolling unit through meshing transmission; the guide unit comprises a first roller hinged relative to the base, the first roller is sleeved with the pull rope, and the pull rope extends out of the base and is connected with the lower beam.
As a further arrangement of the above, the axis of the first roller is parallel to the axes of the coil spring pulley and the rope pulley.
As a further arrangement of the above solution, one end of the coil spring is fixed on the base through the coil spring wheel.
As a further arrangement of the scheme, the base is further provided with a top plate clamped with the base.
As a further arrangement of the scheme, limiting holes are formed among the base, the top plate, the coil spring wheel and the rope pulling wheel, and the limiting holes are used for installing fixing pins.
As a further arrangement of the scheme, the base and the top plate are provided with wheel shafts which are formed by mutual insertion, and the spring coiling wheel and the rope pulling wheel are sleeved on the wheel shafts.
As a further arrangement of the above scheme, the base is further provided with a pin hole, a pin shaft rotating relative to the base is arranged in the pin hole, and the pull rope extends from the rope pulling wheel, winds around the first roller and then winds around the pin shaft, and then is connected with the lower beam.
Has the advantages that: the utility model discloses a curtain body drive mechanism utilizes the rotation of gyro wheel, can make stay cord reciprocating motion guarantee that the wire winding is even and smooth and easy, has avoided the stay cord winding and the curtain body to use uneven scheduling problem of height, and above-mentioned structure has still increased the setting in spacing hole, and the installation is simpler, sparingly debugs the step.
Drawings
Fig. 1 is a schematic view of the curtain transmission structure of the utility model.
Fig. 2 is a schematic diagram of the transmission structure of the present invention.
Fig. 3 is a schematic view of the arrangement structure of the pull rope of the present invention.
Reference numerals: 1. a base; 14. a pin hole; 15. a pin shaft; 2. a winding unit; 21. a spring coiling wheel; 22. a coil spring; 23. a tooth-shaped structure; 3. a rope pulling wheel; 4. a guide unit; 41. a first roller; 5. pulling a rope; 6. fixing the pin; 7. a top plate; 9. and (4) a wheel axle.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflicting with each other.
The curtain body transmission mechanism of the cordless window curtain as shown in figures 1 to 3 is characterized in that: the winding device comprises a base 1, a winding unit 2, a rope pulling wheel 3, a guide unit 4, a pulling rope 5 and a lower beam, wherein the winding unit 2 comprises a spring winding wheel 21 and a coil spring 22, the edge of the spring winding wheel is provided with a tooth-shaped structure 23, the spring winding wheel 21 is meshed with the coil spring 22, the coil spring wheel 21 is hinged to the base 1, and the coil spring 22 is sleeved on the spring winding wheel 21; the rope pulling wheel 3 is hinged relative to the base 1, a tooth-shaped structure 23 is arranged on the outer edge of the rope pulling wheel and meshed with the spring coiling wheel 21, and the rope pulling wheel 3 can be driven to synchronously rotate by the coiling unit 2 through meshing transmission; the guide unit 4 includes a first roller 41 hinged to the base 1, and the pull rope 5 is sleeved on the first roller 41 and extends out of the base 1 to be connected with the lower beam.
As a further arrangement of the above, the axis of the first roller 41 is parallel to the axis of the spring wheel 21 and the pulley 3.
As a further arrangement of the above solution, one end of the coil spring 22 is fixed on the base 1 through the coil spring wheel 21.
As a further arrangement of the above scheme, the base 1 is further provided with a top plate 7 clamped with the base.
As a further arrangement of the above scheme, a limit hole is arranged between the base 1 and the top plate 7 and between the spring coiling wheel 21 and the rope pulling wheel 3, and the limit hole is used for installing the fixing pin 6.
As a further arrangement of the above scheme, the base 1 and the top plate 7 are provided with a wheel shaft 9 formed by mutual insertion, and the spring coiling wheel 21 and the rope pulling wheel 3 are sleeved on the wheel shaft 9.
As a further arrangement of the above scheme, the base 1 is further provided with a pin hole 14, a pin shaft 15 which rotates relative to the base 1 is arranged in the pin hole 14, and as shown in fig. 3, the pull rope 5 extends out from the rope pulley 3 and then winds around the first roller 41 and then winds around the pin shaft 15, so that the pull rope 5 is wound twice through the design, the winding in the reciprocating motion is enabled to be free from direct influence of the curtain body, and the winding is ensured to be uniform and smooth.
As can be seen from the above, in the use process of the curtain body connected to the lower beam in the present invention, the pulling rope 5 drives the rope pulling wheel 3 to rotate by the pulling of the lower beam, and then the rope pulling wheel 3 drives the coil spring wheel 21 engaged therewith to rotate together, so that the coil spring 22 on the coil spring wheel 21 is deformed by the rotation of the coil spring wheel 21 and accumulates elastic restoring force, and the pulling force to the lower beam is released after the curtain body is completely unfolded, and the curtain body at this time is in the unfolded state, and the force accumulation of the coil spring 22 is completed; when the curtain body needs to be folded, the coil spring 22 drives the coil spring wheel 21 to rotate by the thrust on the lower beam and the elastic restoring force accumulated by the coil spring 22 when the curtain body is unfolded, and drives the rope pulling wheel 3 meshed with the coil spring wheel to rotate together, so that the pulling rope 5 is gradually wound on the rope pulling wheel 3 until the curtain body is completely folded and then the thrust on the lower beam is released.
No matter in the process of unfolding or folding, the guide unit 4 and the first roller 41 rotate, the pull rope 5 can reciprocate to ensure that the winding is even and smooth, and the problems that the winding of the pull rope 5 is affected and the use experience is poor due to uneven height in the use of the curtain body or the winding of the curtain body are avoided.
The utility model discloses a curtain body drive mechanism sets up its rotation of passing through of first roller, can make the stay cord carry out reciprocating motion after the secondary wire winding guarantee that the wire winding is even and smooth and easy, has avoided stay cord winding and the curtain body to use uneven scheduling problem of height, and above-mentioned structure has still increased the setting in spacing hole, and the installation is simpler, sparingly debugs the step.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A curtain body transmission mechanism of a curtain without a stay cord is characterized in that: the winding device comprises a base (1), a winding unit (2), a rope pulling wheel (3), a guiding unit (4), a pulling rope (5) and a lower beam, wherein the winding unit (2) comprises a spring winding wheel (21) and a coil spring (22), the two edges of the spring winding wheel are provided with tooth-shaped structures (23) which are meshed with each other, the spring winding wheel (21) is hinged relative to the base (1), and the coil spring (22) is sleeved on the spring winding wheel (21); the rope pulling wheel (3) is hinged relative to the base (1), a tooth-shaped structure (23) is arranged on the outer edge of the rope pulling wheel and meshed with the coil spring wheel (21), and the winding unit (2) can drive the rope pulling wheel (3) to synchronously rotate through meshing transmission; the guide unit (4) comprises a first roller (41) which is hinged relative to the base (1), the first roller (41) is sleeved with the pull rope (5), and the pull rope extends out of the base (1) and is connected with the lower beam.
2. The blind drive mechanism of a cordless window covering of claim 1, wherein: the axis of the first roller (41) is parallel to the axes of the coil spring wheel (21) and the rope pulling wheel (3).
3. The blind drive mechanism of a cordless window covering of claim 1, wherein: one end of the coil spring (22) penetrates through the coil spring wheel (21) and is fixed on the base (1).
4. The blind drive mechanism of a cordless window covering of claim 1, wherein: the base (1) is also provided with a top plate (7) clamped with the base.
5. The blind drive mechanism of a cordless window shade of claim 4, wherein: and limiting holes are formed among the base (1), the top plate (7), the coil spring wheel (21) and the rope pulling wheel (3), and the limiting holes are used for installing fixing pins (6).
6. The blind drive mechanism of a cordless window shade of claim 4, wherein: the base (1) and the top plate (7) are provided with wheel shafts (9) which are formed by mutual insertion, and the spring coiling wheel (21) and the rope pulling wheel (3) are sleeved on the wheel shafts (9).
7. The blind drive mechanism of a cordless window covering of claim 1, wherein: the base (1) is further provided with a pin hole (14), and a pin shaft (15) rotating relative to the base (1) is arranged in the pin hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122398652.3U CN215859915U (en) | 2021-09-30 | 2021-09-30 | Curtain body transmission mechanism of curtain without stay cord |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122398652.3U CN215859915U (en) | 2021-09-30 | 2021-09-30 | Curtain body transmission mechanism of curtain without stay cord |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215859915U true CN215859915U (en) | 2022-02-18 |
Family
ID=80258736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122398652.3U Active CN215859915U (en) | 2021-09-30 | 2021-09-30 | Curtain body transmission mechanism of curtain without stay cord |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215859915U (en) |
-
2021
- 2021-09-30 CN CN202122398652.3U patent/CN215859915U/en active Active
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