CN206889541U - The plane scroll spring of curtain driving device - Google Patents
The plane scroll spring of curtain driving device Download PDFInfo
- Publication number
- CN206889541U CN206889541U CN201720616855.6U CN201720616855U CN206889541U CN 206889541 U CN206889541 U CN 206889541U CN 201720616855 U CN201720616855 U CN 201720616855U CN 206889541 U CN206889541 U CN 206889541U
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- China
- Prior art keywords
- scroll spring
- plane scroll
- reed
- spring
- driving device
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- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The utility model embodiment discloses a kind of plane scroll spring of curtain driving device, its conventional planar scroll spring made of common process carries out what reverse coiling formed, and the forming curvature radius of the active section of the reed of the plane scroll spring gradually increases from outer ring to inner ring.The utility model embodiment carries out reverse coiling by using conventional planar scroll spring made of common process, so that the forming curvature radius of reed active section gradually increases from outer ring to inner ring, and make it that the moment of torsion that the plane scroll spring outer ring that the utility model embodiment provides provides is more than the moment of torsion that its inner ring provides, accordingly, the support force when reed of outer ring works needed for cord is also larger, the support force when reed of inner ring works needed for cord is smaller, so as to, so that the moment of torsion distribution of plane scroll spring preferably matches with the support force needed for cord, all the time the effective support force that can be given required for cord.
Description
Technical field
It the utility model is related to curtain fittings technical field, more particularly to a kind of plane scroll bullet of curtain driving device
Spring.
Background technology
For the consideration of safety, attractive in appearance etc., no operating rope curtain has turned into the main direction of development of window covering products.
In curtain without stretching wire, the drawstring being connected with cord is set around on reel, and reel can rotate under drive mechanism driving, and
Drawstring is set to be discharged around on reel or from reel, so as to realize the lifting of cord.
Common drive mechanism is plane scroll spring, plane scroll spring also known as clockwork spring, is that a kind of one end is fixed
And other end effect has the spring of moment of torsion, elasticity of flexure deformation is produced in the reed of moment of torsion effect lower spring, makes spring in plane
Interior to produce torsion, the size of its deformation angle is directly proportional to moment of torsion.Traditional plane scroll spring is in shaping, reed brake forming
Forming curvature radius afterwards is gradually increased from inner ring to outer ring, and the forming curvature radius of reed is smaller, the torsion that can be provided
Square can be bigger, and therefore, the moment of torsion that traditional plane scroll spring is provided is gradually reduced from inner ring to outer ring.
When driving curtain, the outer end of plane scroll spring winding is fixed on parallel with plane scroll spring its central axis
Middle rotating shaft on, the transmission of the middle rotating shaft and reel is connected, and middle rotating shaft can drive reel to rotate when rotating, and vice versa.
When needing to put down cord, cord can be pulled down manually, and drawstring can drive reel to rotate forward, and then rotating shaft is positive in drive
Rotation, then from coil to coil is wound in middle rotating shaft the reed of plane scroll spring；And when rising cord, only need to be by cord slightly downwards
Pull, rotating shaft reversely rotates during plane scroll spring can drive under its own resilient effect, while reed again will progressively
From coil to coil therefrom exit and the winding that bounces back by rotating shaft, and middle rotating shaft drives reel to reversely rotate recovery drawstring, and then drives on cord
Rise.
In existing no operating rope Window curtain structure, when cord drops to lower position, it is necessary to be supported by drive mechanism
Weight it is relatively small, and now, the reed of plane scroll spring is most of in middle rotating shaft, is now placed in middle rotating shaft
The forming curvature radius of the reed of outer ring is smaller, can provide larger moment of torsion, easily makes middle rotating shaft occur to reversely rotate and cause
Unnecessary rising occurs for cord, on the contrary, when cord rises to higher position, it is necessary to the weight phase supported by drive mechanism
To larger, and now, the reed of plane scroll spring is most of, and therefrom rotating shaft is exited and the winding that bounces back, and is now placed in transfer
The forming curvature radius of the reed of outer ring is larger on axle, can only provide less moment of torsion, possibly can not effectively support cord
Weight, and cause cord that unnecessary tenesmus occurs because of Action of Gravity Field.
Utility model content
The utility model embodiment technical problems to be solved are to provide a kind of plane scroll bullet of curtain driving device
Spring, effective support force can be provided in cord lifting process.
In order to solve the above technical problems, the utility model embodiment provides a kind of plane scroll bullet of curtain driving device
Spring, its conventional planar scroll spring made of common process carry out what reverse coiling formed, the spring of the plane scroll spring
The forming curvature radius of the active section of piece gradually increases from outer ring to inner ring.
Further, the reed of the plane scroll spring square section and is connected in adjacent two grades square including at least two etc.
The bending moment section as active section between section, the forming curvature radius of the reed in the bending moment section everywhere from outer ring to inner ring by
It is cumulative big, and wait the forming curvature radius of the reed in square section everywhere equal.
Further, the reed end of the plane scroll spring outmost turns is provided with flat for receiving winding for being fixed to
Outer fixing portion in the middle rotating shaft of face scroll spring.
Further, the reed end of the plane scroll spring innermost circle is provided with flat for receiving winding for being fixed to
Interior fixed part on the mandrel of face scroll spring.
Further, the reed end of the plane scroll spring innermost circle and the reed of the adjacent turn on the outside of it weld
Connect and be fixedly connected.
By using above-mentioned technical proposal, the utility model embodiment has the beneficial effect that：The utility model embodiment
Reverse coiling is carried out by using conventional planar scroll spring made of common process so that the forming curvature of reed active section half
Footpath gradually increases from outer ring to inner ring, and the moment of torsion that the plane scroll spring outer ring that the utility model embodiment provides is provided
The moment of torsion provided more than its inner ring, accordingly, the support force when reed of outer ring works needed for cord is also larger, the spring of inner ring
Support force when piece works needed for cord is smaller, so as to so that moment of torsion distribution and the branch needed for cord of plane scroll spring
Support force preferably matches, the effective support force that can be given all the time required for cord.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of plane scroll spring one embodiment of the utility model curtain driving device.
Fig. 2 is the plane scroll spring obtained conventional planar whirlpool in process of production of the utility model curtain driving device
The structural representation of coil spring.
Fig. 3 is the use state structural representation of plane scroll spring one embodiment of the utility model curtain driving device
Figure.
Fig. 4 is the stereochemical structure signal of another embodiment of the plane scroll spring of the utility model curtain driving device
Figure.
Embodiment
The application is described in further detail with specific embodiment below in conjunction with the accompanying drawings.It should be appreciated that following signal
Property embodiment and explanation be only used for explaining the utility model, be not intended as to restriction of the present utility model, moreover, not conflicting
In the case of, the feature in embodiment and embodiment in the application can be combined with each other.
As shown in Figures 1 and 2, the utility model one embodiment provides a kind of plane scroll bullet of curtain driving device
Spring, its conventional planar scroll spring made of common process carry out what reverse coiling formed, the spring of the plane scroll spring
The forming curvature radius of the active section of piece is gradually increased from outer ring 1 to inner ring 2.It should be appreciated that carried in the utility model
And reed active section refer to the reed section of stress when cord is moved to maximum position from complete holosystolic initial position to cord,
Outer ring and inner ring mentioned in the utility model are relative concepts, i.e., comparatively, the off-axis heart it is remote for outer ring, off axis
The heart it is near for inner ring, by taking the reed positioned at intermediate layer as an example, it is inner ring relative to the reed on the outside of it, and relative to
Reed on its inside is outer ring.
In the present embodiment, reverse coiling is carried out by using conventional planar scroll spring made of common process so that
The forming curvature radius of reed active section is gradually increased from outer ring 1 to inner ring 2 so that the plane that the utility model embodiment provides
The moment of torsion that scroll spring outer ring 1 provides is more than the moment of torsion that its inner ring 2 provides, accordingly, cord institute when the reed of outer ring 1 works
The support force needed is also larger, and the support force when reed of inner ring 2 works needed for cord is smaller, so as to so that the utility model
The moment of torsion distribution for the plane scroll spring that embodiment provides preferably matches with the support force needed for cord, can give cord all the time
Required effective support force.
In one embodiment, the reed of the plane scroll spring square section and is connected in adjacent including at least two etc.
The bending moment section as active section between two grade square sections, the forming curvature radius of the reed in the bending moment section everywhere from outer ring to
Inner ring gradually increases, and waits the forming curvature radius of the reed in square section everywhere equal.
The utility model is by designing at least two grade square sections and corresponding bending moment section, so as in plane scroll spring
There is the moment of torsion of different changes when being wound up into different sections, can more meet the design requirement of different window covering products.
With reference to shown in Fig. 3, in one embodiment of the present utility model, the reed end of the plane scroll spring outmost turns
End, which is provided with, to be used to be fixed to for receiving the outer fixing portion 3 in the middle rotating shaft 4 for winding plane scroll spring.The fixed part 3 can
To be that I-shaped lamellar body, T-shaped lamellar body or rectangle lamellar body with circular hole etc. are various can be by the outmost turns of plane scroll spring
Reed end is fixed to the structure in corresponding middle rotating shaft 4., can be easily by plane scroll bullet by designing outer fixing portion 3
The reed end of the outmost turns of spring is fixed in corresponding middle rotating shaft 4, improves packaging efficiency during use.
With reference to shown in Fig. 4, in one embodiment of the present utility model, the reed end of the plane scroll spring innermost circle
End, which is provided with, to be used to be fixed to for receiving the interior fixed part 6 on the mandrel 5 for winding plane scroll spring.The interior fixed part 6 by
One circle or several radius of curvature circular reeds smaller than innermost circle reed of enclosing are formed.Mandrel 5 can with more convenient be fixed flat
The installation site of face scroll spring, be advantageous to optimize product global design, by fixed part in design 6, be fixed on its winding
On mandrel 5, fit clearance is smaller, avoids plane scroll spring from rocking at work, improves stability when curtain uses.
In one embodiment of the present utility model, the reed end of the plane scroll spring innermost circle is with being located at its outside
The reed of adjacent turn be welded and fixed connection.By by the reed end 20 of innermost circle and the reed of the adjacent turn on the outside of it
Connection is welded and fixed, plane scroll spring innermost circle can be caused to immobilize, is advantageous to the torsion for making whole plane scroll spring
Square change is more steady.
The utility model embodiment provide the plane scroll spring made by flat spring steel band or beryllium bronze band and
Into.In production, the one end of reed material strips is punched out fixing end 3 first, then make using conventional planar scroll spring
Common process with fixing end 3 to be that starting point crimps successively Wrapping formed, form forming curvature radius and become big successively from inside to outside
Conventional planar scroll spring（As shown in Figure 2）, then, then carry out backward-coiled around so that in conventional planar scroll spring shown in Fig. 2
The big outer ring of middle forming curvature radius becomes the inner ring 2 of the utility model plane scroll spring, and conventional planar whirlpool shown in Fig. 2
In coil spring the small inner ring of forming curvature radius for the outer ring 1 of the utility model plane scroll spring, due to now outer
The forming curvature radius of circle 1 is small, and therefore, outer ring 1 successively will live inner ring 2 by lock ring.
Particular embodiments described above, the purpose of this utility model, technical scheme and beneficial effect are carried out to enter one
Step describes in detail, should be understood that and the foregoing is only specific embodiment of the utility model, is not used to limit this
The protection domain of utility model, it is all within the spirit and principles of the utility model, any modification for being made, equivalent substitution, change
Enter, should be included within the scope of protection of the utility model.
Claims (5)
- A kind of 1. plane scroll spring of curtain driving device, it is characterised in that：The plane scroll spring is by common process Manufactured conventional planar scroll spring carries out what reverse coiling formed, the shaping of the active section of the reed of the plane scroll spring Radius of curvature gradually increases from outer ring to inner ring.
- 2. the plane scroll spring of curtain driving device according to claim 1, it is characterised in that：The plane scroll bullet The reed of spring square section and the bending moment section as active section being connected between adjacent two grades square section such as including at least two, it is described The forming curvature radius of reed in bending moment section everywhere gradually increases from outer ring to inner ring, and wait the reed in square section everywhere into Type radius of curvature is equal.
- 3. the plane scroll spring of curtain driving device according to claim 1, it is characterised in that：The plane scroll bullet The reed end of spring outmost turns, which is provided with, to be used to be fixed to for receiving the outer fixing portion in the middle rotating shaft for winding plane scroll spring.
- 4. the plane scroll spring of curtain driving device according to claim 1, it is characterised in that：The plane scroll bullet The reed end of spring innermost circle, which is provided with, to be used to be fixed to for receiving the interior fixed part on the mandrel for winding plane scroll spring.
- 5. the plane scroll spring of the curtain driving device according to any one of claim 1 ~ 4, it is characterised in that：It is described flat The reed end of face scroll spring innermost circle is welded and fixed with the reed of the adjacent turn on the outside of it and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720616855.6U CN206889541U (en) | 2017-05-27 | 2017-05-27 | The plane scroll spring of curtain driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720616855.6U CN206889541U (en) | 2017-05-27 | 2017-05-27 | The plane scroll spring of curtain driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889541U true CN206889541U (en) | 2018-01-16 |
Family
ID=61320888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720616855.6U Active CN206889541U (en) | 2017-05-27 | 2017-05-27 | The plane scroll spring of curtain driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889541U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412407A (en) * | 2018-04-24 | 2018-08-17 | 雷振邦 | Electrically driven curtain |
| CN110145561A (en) * | 2019-06-11 | 2019-08-20 | 福立旺精密机电（中国）股份有限公司 | A kind of multistage power plane scroll spring and its processing unit (plant) and processing method |
| WO2020237461A1 (en) * | 2019-05-27 | 2020-12-03 | 雷振邦 | Flat spiral spring and curtain driving device |
| CN113503330A (en) * | 2021-06-29 | 2021-10-15 | 上海宇航系统工程研究所 | Long-life planar spiral spring for space |
-
2017
- 2017-05-27 CN CN201720616855.6U patent/CN206889541U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412407A (en) * | 2018-04-24 | 2018-08-17 | 雷振邦 | Electrically driven curtain |
| WO2020237461A1 (en) * | 2019-05-27 | 2020-12-03 | 雷振邦 | Flat spiral spring and curtain driving device |
| CN110145561A (en) * | 2019-06-11 | 2019-08-20 | 福立旺精密机电（中国）股份有限公司 | A kind of multistage power plane scroll spring and its processing unit (plant) and processing method |
| CN113503330A (en) * | 2021-06-29 | 2021-10-15 | 上海宇航系统工程研究所 | Long-life planar spiral spring for space |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200722 Address after: No. 100, universe Road, Shipai town, Dongguan City, Guangdong Province 523330 Patentee after: Dongguan leifuyi window decoration technology Co.,Ltd. Address before: 18, 518000, third industrial zone, Kwai Chung street, Longgang District, Guangdong, Shenzhen Co-patentee before: Lei Xingbang Patentee before: Lei Zhenbang |