CN214836012U - Power extension mechanism of constant-force spring non-pulling system - Google Patents
Power extension mechanism of constant-force spring non-pulling system Download PDFInfo
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- CN214836012U CN214836012U CN202120271089.0U CN202120271089U CN214836012U CN 214836012 U CN214836012 U CN 214836012U CN 202120271089 U CN202120271089 U CN 202120271089U CN 214836012 U CN214836012 U CN 214836012U
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- driving wheel
- spring
- constant force
- force spring
- power
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Abstract
A constant force spring does not have a system power extension mechanism that draws, reuse the same spring to turn back and produce the situation of the power, have greatly reduced the space occupation; the spring type constant force spring comprises a shell and a buckle cover, wherein a driving wheel and a driven wheel are rotatably arranged in an inner cavity of the shell, the driving wheel is meshed with the driven wheel, a constant force spring is arranged on the driving wheel, the end part of the constant force spring is fixed on the driven wheel, and an input end extending out of the buckle cover is arranged on the driving wheel; the utility model discloses novel structure, the mechanism is ingenious, and is applicable in the no sliding window curtain of various pipe diameters, and the inside of (window) curtain support is arranged in to this device, utilizes the action wheel and extends the power so that exceed the height of (window) curtain among the prior art from the transmission of driving wheel for reduce the length of deciding the power spring under the prerequisite of the equal length of requirement (window) curtain, also reduced occupation space, the outward appearance is more exquisite, and the assembly is simple, and the equipment is convenient.
Description
Technical Field
The utility model relates to the technical field of curtains, in particular to a power extension mechanism of a constant force spring pull-free system.
Background
With the development and progress of the society, curtain products are continuously updated, and according to various demands of markets and customers, the curtain without bead wires and pull ropes is developed, and a system without pull ropes also becomes a necessary trend of development; the non-pulling products are produced and sold in the market, particularly the fixed-force non-pulling products have great advantages in the non-pulling products due to the fact that the force change range is small when the fixed-force spring is used, but the non-pulling fixed-force spring system products in the market are directly reversely coiled to generate power, the occupied space is large, and the products are heavy.
There is a need for a constant force spring no-pull system power extension mechanism to address this problem.
SUMMERY OF THE UTILITY MODEL
To the situation above, for overcoming the defect of prior art, the utility model aims at providing a decide power spring does not have system of drawing power and extends the mechanism, under the same spring backrush of reuse produced power's the condition, great reduction the space occupy.
The technical scheme of its solution is, the utility model discloses a casing and buckle closure, the action wheel is installed to the inner chamber internal rotation of casing and from the driving wheel, action wheel and from the driving wheel meshing, are equipped with the constant force spring on the action wheel, and the end fixing of constant force spring is equipped with the input that stretches out the buckle closure on the action wheel from the driving wheel.
The utility model has the advantages that: the utility model discloses novel structure, the mechanism is ingenious, and is applicable in the no sliding window curtain of various pipe diameters, and the inside of (window) curtain support is arranged in to this device, utilizes the action wheel and extends the power so that exceed the height of (window) curtain among the prior art from the transmission of driving wheel for reduce the length of deciding the power spring under the prerequisite of the equal length of requirement (window) curtain, also reduced occupation space, the outward appearance is more exquisite, and the assembly is simple, and the equipment is convenient.
Drawings
Fig. 1 is an installation and use diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a working principle diagram of the present invention.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Example (b):
by figure 1 to 3 provide, the utility model discloses a casing 1 and buckle closure 2, the action wheel 3 is installed and follows driving wheel 4 to casing 1's inner chamber internal rotation, action wheel 3 and from the meshing of driving wheel 4, the diameter ratio of following driving wheel 4 and action wheel 3 is greater than 1, be equipped with constant force spring 5 on the action wheel 3, the end fixing of constant force spring 5 is from driving wheel 4, the pothook card of constant force spring 5 exhibition end is gone into in the fluting from driving wheel 4, be equipped with the input 6 that stretches out buckle closure 2 on the action wheel 3, input 6 is connected with (window) curtain main part 8 through installing regulation system head 7 in the coil pipe, this device is installed on the housing of (window) curtain promptly.
A first cylinder 9 and a second cylinder 10 are arranged in an inner cavity of the shell 1, the driving wheel 3 is rotatably installed on the first cylinder 9, a spring base 11 is installed on the second cylinder 10, a sleeve 12 is further arranged on the spring base 11, and the constant force spring 5 is wound on the sleeve 12.
The shell 1 is provided with a plurality of mounting grooves 13, the buckle cover 2 is provided with mounting holes 14 corresponding to the mounting grooves 13, the buckle cover 2 is fixedly mounted on the shell 1 by mounting screws 17 in the mounting grooves 13 and the mounting holes 14, and the screws 17 are flat-head self-tapping screws.
The center of the buckle cover 2 is provided with a central hole 15, and the input end 6 extends out of the buckle cover 2 through the central hole 15.
The driving wheel 3 is provided with a positioning rod 16, and the positioning rod 16 extends into the sleeve 12 on the spring base 11.
The driving wheel 3, the driven wheel, the spring base 11, the first cylinder and the second cylinder in the inner cavity of the shell 1 and the central circular hole of the buckle cover 2 are in clearance fit and can flexibly rotate.
When the utility model is used, the output end of the driving wheel 3 is rotated anticlockwise, the driving wheel 3 drives the driven wheel 4 to rotate clockwise, the driven wheel 4 drives the constant force spring 5 to roll back on the shaft body of the driven wheel 4 when rotating, the constant force spring 5 generates power when rolling back, the device utilizes the cooperation of the driving wheel 3 and the driven wheel 4 to increase the power of the constant force spring 5 to input the number of turns to the driving wheel 3, the power provided when the constant force spring 5 rolls back for one turn to roll back again can enable the rotation of the driving wheel 3 to be more than 1 turn (the number of turns of the driven wheel 4 is obtained due to the gear ratio of the driven wheel and the driving wheel 3, the number of turns of the driving wheel 3 is more than 1 turn, and the calculation is preferably 1.3 turns), the manufacturing cost of the constant force spring 5 can be saved; under the condition that the height of the curtain is the same, the mechanism occupies small space and has more exquisite appearance.
The utility model has the advantages that: the utility model discloses novel structure, the mechanism is ingenious, and is applicable in the no sliding window curtain of various pipe diameters, and the inside of (window) curtain support is arranged in to this device, utilizes the action wheel and extends the power so that exceed the height of (window) curtain among the prior art from the transmission of driving wheel for reduce the length of deciding the power spring under the prerequisite of the equal length of requirement (window) curtain, also reduced occupation space, the outward appearance is more exquisite, and the assembly is simple, and the equipment is convenient.
The foregoing detailed description/examples are specific embodiments of the present invention, and are intended to be illustrative of the principles of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include those which make any obvious replacement or modification of the embodiments described herein, and all of which are within the scope of the present invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (5)
1. The utility model provides a decide power spring does not have system power of drawing and extends mechanism, includes casing (1) and buckle closure (2), its characterized in that, action wheel (3) and follow driving wheel (4) are installed to the inner chamber internal rotation of casing (1), action wheel (3) and follow driving wheel (4) meshing are equipped with decide power spring (5) on action wheel (3), the end fixing of deciding power spring (5) is on following driving wheel (4), be equipped with input (6) that stretch out buckle closure (2) on action wheel (3).
2. The tension-free system power extension mechanism of a constant force spring as claimed in claim 1, wherein a first cylinder (9) and a second cylinder (10) are arranged in the inner cavity of the housing (1), the driving wheel (3) is rotatably mounted on the first cylinder (9), a spring base (11) is mounted on the second cylinder (10), a sleeve (12) is further arranged on the spring base (11), and the constant force spring (5) is wound on the sleeve (12).
3. The power extension mechanism of a constant force spring no-pull system according to claim 1, characterized in that the housing (1) is provided with a plurality of mounting slots (13), the buckle cover (2) is provided with mounting holes (14) corresponding to the positions of the mounting slots (13), and the buckle cover (2) is fixedly mounted on the housing (1) by mounting screws (17) in the mounting slots (13) and the mounting holes (14).
4. A constant force spring no-pull system power extension mechanism according to claim 1, characterized in that the center of the buckle cover (2) is provided with a central hole (15), and the input end (6) extends out of the buckle cover (2) through the central hole (15).
5. The power extension mechanism of a constant force spring non-pulling system according to claim 1, characterized in that the driving wheel (3) is provided with a positioning rod (16), and the positioning rod (16) extends into the sleeve (12) on the spring base (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120271089.0U CN214836012U (en) | 2021-02-01 | 2021-02-01 | Power extension mechanism of constant-force spring non-pulling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120271089.0U CN214836012U (en) | 2021-02-01 | 2021-02-01 | Power extension mechanism of constant-force spring non-pulling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214836012U true CN214836012U (en) | 2021-11-23 |
Family
ID=80004813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120271089.0U Active CN214836012U (en) | 2021-02-01 | 2021-02-01 | Power extension mechanism of constant-force spring non-pulling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214836012U (en) |
-
2021
- 2021-02-01 CN CN202120271089.0U patent/CN214836012U/en active Active
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