CN112450708A - Curtain opening and closing device and working method thereof - Google Patents
Curtain opening and closing device and working method thereof Download PDFInfo
- Publication number
- CN112450708A CN112450708A CN202011288228.7A CN202011288228A CN112450708A CN 112450708 A CN112450708 A CN 112450708A CN 202011288228 A CN202011288228 A CN 202011288228A CN 112450708 A CN112450708 A CN 112450708A
- Authority
- CN
- China
- Prior art keywords
- curtain
- ring
- shaft
- toothed
- closing device
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47H—FURNISHINGS FOR WINDOWS OR DOORS
- A47H5/00—Devices for drawing draperies, curtains, or the like
- A47H5/02—Devices for opening and closing curtains
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47H—FURNISHINGS FOR WINDOWS OR DOORS
- A47H13/00—Fastening curtains on curtain rods or rails
- A47H13/02—Fastening curtains on curtain rods or rails by rings, e.g. with additional runners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
The invention discloses a curtain opening and closing device and a working method thereof. The Roman rod is inserted between the U-shaped driving wheel and the toothed semi-ring, and the curtain is hung on the Roman rod through a plurality of hanging rings. The toothed semi-ring is controlled to be meshed with and separated from the clamping rack through the switch shaft; pressing in the switch shaft to separate the clamping rack from the toothed semi-ring and screwing out the toothed semi-ring to open the curtain opener; the switch shaft is pressed out, the toothed semi-ring is screwed in to be meshed with the clamping rack for clamping, and the curtain opener is closed. The curtain opener is fixed on the roman rod through the toothed semi-ring and the U-shaped driving wheel. The double-shaft motor drives the U-shaped driving wheel to rotate, and the curtain opening and closing device can stably move on the roman rod under the action of friction force.
Description
Technical Field
The invention relates to an automatic opening and closing device, in particular to a curtain opening and closing device.
Background
A rod-type curtain is composed of a Roman rod, curtain rings and a curtain. The Roman rod type curtain is divided into two parts, and the left side and the right side of the Roman rod type curtain are both distributed with curtain hanging rings (the curtain hanging rings are uniformly distributed on the curtain). One corner of the curtain is pulled to drive the curtain rings to fold and unfold, so that the curtain is opened and closed. The Roman rod type curtain opening and closing device is required to be fixed on a Roman rod and can move stably. The curtain hanging ring needs to be folded in the moving process, and the curtain hanging ring is scattered, so that the aims of opening and closing the curtain are fulfilled.
The common rod-type curtain opening and closing device in the prior art can receive higher downward pressure due to self weight in the transverse direction, so that interference and unstable sliding can be generated during opening and closing.
Disclosure of Invention
The purpose of the invention is as follows: the present invention provides a curtain opening and closing device to solve the above problems in the prior art.
The technical scheme is as follows: a curtain opening and closing device comprises a shell, a toothed semi-ring, a clamping mechanism and a U-shaped driving wheel, wherein the toothed semi-ring penetrates through two sides inside and outside the shell and rotates around a fixed rotation center;
the Roman rod is inserted between the U-shaped driving wheel and the toothed semi-ring, and the curtain body is hung on the Roman rod through a plurality of hanging rings.
In a further embodiment, the U-shaped driving wheel is driven by a driving assembly fixed inside the shell and positioned at the lower part of the U-shaped driving wheel; the teeth of the toothed semi-ring are matched and clamped with the clamping mechanism, so that a closed annular structure is formed.
In a further embodiment, the clamping mechanism comprises a rack support connected with the shell, and a clamping rack rotatably connected with the rack support; the clamping rack is provided with a reserved spring slot position and a square hole, a second compression spring is arranged in the spring slot position, and the switch shaft is assembled in the square hole.
In a further embodiment, a first bearing support and a third bearing support are respectively arranged on two sides of the toothed semi-ring, the first bearing support and the third bearing support form a first bearing support assembly, and a first bearing and a second bearing are sleeved at two ends of the first bearing support assembly.
In a further embodiment, a second bearing support and a fourth bearing support are respectively arranged on two sides of the toothed semi-ring, the second bearing support and the fourth bearing support and the toothed semi-ring form a second bearing support assembly, and a third bearing and a fourth bearing are sleeved at two ends of the second bearing support assembly.
In a further embodiment, the driving assembly includes a double-shaft motor fixed in a housing, a first D-shaft support and a second D-shaft support fixed in the housing and respectively located at two sides of an upper portion of the double-shaft motor, a D-shaft rotatably disposed between the first D-shaft support and the second D-shaft support, a U-shaped driving wheel sleeved and fixed in a middle portion of the D-shaft, and a first D-shaft synchronizing wheel and a second D-shaft synchronizing wheel sleeved and fixed at two end portions of the D-shaft respectively.
In a further embodiment, the output ends of the double-shaft motor at two sides are respectively sleeved with a first motor synchronous wheel and a second motor synchronous wheel; and the first D-shaft synchronizing wheel and the first motor synchronizing wheel and the second D-shaft synchronizing wheel and the second motor synchronizing wheel are connected through a first synchronous belt and a second synchronous belt respectively to realize power transmission.
Based on the curtain opening and closing device, the invention further provides a working method based on the curtain opening and closing device, wherein the toothed semi-ring is controlled to be meshed with and separated from the clamping rack through the switch shaft; pressing in the switch shaft to separate the clamping rack from the toothed semi-ring and screwing out the toothed semi-ring to open the curtain opener; the switch shaft is pressed out, the toothed semi-ring is screwed in to be meshed with the clamping rack for clamping, and the curtain opener is closed.
In a further embodiment, the working method based on the curtain opening and closing device comprises the following steps:
step 1, a double-shaft motor drives a U-shaped driving wheel to rotate, a bearing on a toothed semi-ring rolls, and a Roman rod type curtain opening and closing device moves left and right under the action of friction force;
step 2, when the curtain is opened, the Roman rod type curtain openers move towards the two ends to push the curtain hanging rings to move towards the two ends, the curtain hanging rings are folded, and the curtain is opened; when the curtain is closed, the Roman rod type curtain opener moves towards the middle, the curtain hanging ring is pulled to move towards the middle, the curtain hanging ring is scattered, and the curtain is closed;
step 3, when the curtain opening and closing device is installed, the curtain opening and closing device in an open state is placed on the roman pole; the switch shaft is pressed out, the switch shaft moves outwards, the clamping rack is changed from the wide-shaft support of the switch shaft to the narrow-shaft support of the switch shaft, the second compression spring directly presses the clamping rack, and the clamping rack rotates outwards;
step 4, screwing the toothed semi-ring into the clamping rack, extruding the clamping rack by the toothed semi-ring, enabling the clamping rack to rotate inwards, compressing the second compression spring, and stopping rotating to press the rack tightly; under the pressure of a second compression spring, the teeth of the clamping rack are meshed with the teeth of the toothed semi-ring, screwed out and locked, and are in a clamping state;
Has the advantages that: the invention discloses a curtain opening and closing device and a working method thereof. The double-shaft motor drives the U-shaped driving wheel to rotate, and the curtain opening and closing device can stably move on the roman rod under the action of friction force. The curtain opener is only needed to be arranged between the first curtain hanging ring and the second curtain hanging ring in the middle of the Roman rod type curtain. Therefore, the curtain opening and closing device can move left and right to drive the curtain to move left and right. The curtain openers are arranged on the two sides of the roman rod, so that the roman rod type curtain can be opened and closed. The utility model has the advantages of exquisite structure, convenient installation and adjustment and stable opening and closing of the curtain. The Roman rod type curtain is stably and quietly opened and closed. In the whole opening and closing process of the curtain, the motor drives the pressing wheel to drive the curtain opener to move left and right, so that the Roman rod type curtain is stable, quiet and naturally opened and closed.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a state view of the present invention when the window covering is closed.
Fig. 3 is a state view of the present invention when the window covering is opened.
Fig. 4 is a front view of the window covering opener of the present invention with the outer cover removed.
The figures are numbered: the curtain opening and closing device comprises a toothed semi-ring 1, a toothed semi-ring support 2, a shell 3, a shell mounting hole 4, a first D-axis support 5, a first D-axis bearing 6, a first D-axis synchronizing wheel 7, a D-shaped shaft 8, a first synchronous belt 9, a first motor synchronizing wheel 10, a first motor adjustable support 11, a double-axis motor 12, a first bearing 13, a first bearing support 14, a second bearing 15, a third bearing 16, a second bearing support 17, a fourth bearing 18, a first compression spring 19, a clamping rack 20, a second compression spring 21, a clamping rack support 22, a U-shaped driving wheel 23, a second D-axis support 24, a second D-axis synchronizing wheel 25, a second synchronous belt 26, a second motor synchronizing wheel 27, a second motor adjustable support 28, a second D-axis bearing 29, a switch shaft 30, a third bearing support 31, a fourth bearing support 32, a first curtain opening and closing device 33, a second curtain opening and closing device 34, a left first curtain lifting ring 35, The left second curtain hanging ring 36, the right first curtain hanging ring 37, the right second curtain hanging ring 38, the Roman pole 39, the Roman pole support 40 and the Roman pole head 41.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
The invention can stably fix the Roman rod type curtain opener on the Roman rod 39 and can move stably by adjusting the toothed semi-ring 1. The left part and the right part of the Roman rod type curtain are both arranged between the first curtain hanging ring and the second curtain hanging ring which are close to the middle, and the curtain opening and closing device is arranged. The U-shaped driving wheel 23 is driven by the motor to rotate, and the curtain opening and closing device moves under the action of friction force. The Roman rod type curtain opening and closing device moves towards the middle, and the first curtain hanging ring in the middle is dragged to drive the curtain hanging ring at the side to be scattered, so that the curtain is closed. Similarly, the Roman rod type curtain opening and closing device moves towards two sides, and the second curtain hanging ring in the middle is dragged to drive the curtain hanging ring on the side to be folded, so that the curtain is opened. Thus, the Roman rod 39 type curtain opening and closing device can smoothly complete the tasks of opening and closing the curtain.
As shown in fig. 1 and 2, the curtain opening and closing device for the roman rod type curtain of the present invention is mainly composed of: the device comprises a toothed semi-ring 1, a clamping rack 20, a second compression spring 21, a bearing support, a U-shaped driving wheel 23, an adjustable motor support, a D-shaped shaft 8, a synchronous wheel, a synchronous belt, a shell 3 and the like. The first bearing support 14 and the third bearing support 31 are connected in this order by interposing the toothed half ring 1 therebetween, and passing a bolt through an arc groove of the toothed half ring 1, and passing the first bearing support 14, the toothed half ring 1, and the third bearing support 17. The bolts are tightened and the first bearing support 14 and the third bearing support 31 are fixed to the toothed half ring 1. The first bearing support 14 and the third bearing support 31 can move freely on the arc groove by loosening the bolt. The first bearing 13 and the second bearing 15 are inserted through the toothed half ring 1 and fixed at both ends of the combination of the first bearing support 14 and the third bearing support 31 by interference fit. The position of the bearing on the toothed half ring 1 can be adjusted by loosening the bolts to adjust the position of the combination of the first bearing support 14 and the third bearing support 31. The second bearing support 17, the fourth bearing support 32, the third bearing 16 and the fourth bearing 18 are also assembled in the manner described above.
One end of the toothed half ring 1 with the hole is connected with the hole of the toothed half ring 1 of the toothed half ring support 2 on the shell 3 through a bolt to form a rotating pair. The chucking rack 20 is connected with a chucking rack support 22 in the housing 3 through a bolt to form a rotation pair capable of rotating at a certain angle. The second pressing spring 21 and the first pressing spring 19 are respectively arranged in a groove of the second pressing spring 21 left by the chucking rack 20 and a groove of the first pressing spring 19 left by the housing 3, so that the chucking rack 20 is in a pressing state. By pushing the switch shaft 30, the toothed half ring 1 can be rotated, and the toothed half ring 1 and the housing 3 are opened. The switch shaft 30 is pressed down, the toothed half ring 1 is screwed in, the toothed half ring 1 is meshed with the clamping rack 20, the toothed half ring 1 can be screwed in the forward direction and screwed out and locked in the reverse direction, and the toothed half ring 1 and the shell 3 form a closed state.
The first D-shaft bearing 6 is fitted into one end of the bearing groove of the first D-shaft support 5, and the second D-shaft bearing 29 is fitted into one end of the bearing groove of the second D-shaft support 24. And the U-shaped driving wheel 23 is connected with the D-shaped shaft 8 and is fixed in the middle of the D-shaped shaft 8 through a jackscrew. On the D-shaped shaft 8, two synchronizing wheels are mounted at each end of the U-shaped driving wheel 23. Two ends of the D-shaped shaft 8 are respectively arranged in D-shaft bearings in the D-shaped shaft support. The first D-axis bearing 5 and the second D-axis bearing 24 are fixed to the housing 3, and the U-shaped driving wheel 23 can rotate freely. The two shaft ends of the double-shaft motor 12 are provided with a synchronous wheel. The synchronous wheels on the same side are connected through two synchronous belts. And adjusting the position of the double-shaft motor 12 on the motor adjustable support to enable the synchronous belt to be in a tensioning state.
The switch shaft 30 is pressed in to separate the clamping rack 20 from the toothed half ring 1, and the toothed half ring 1 is screwed out to make the curtain opener in an open state. The first curtain opener 33 is arranged between the left first curtain hanging ring 35 and the left second curtain hanging ring 36 in the middle of the roman rod type curtain. The middle right first curtain ring 37 and the right second curtain ring 38 of the roman rod type curtain are also provided with a second curtain opener 34. The switch shaft 30 is pressed out, the toothed semi-ring 1 is screwed in to be meshed and clamped with the clamping rack 20, and the curtain opener is in a closed state. The toothed semi-ring 1 is adjusted, the position of the bearing on the toothed semi-ring 1 is adjusted, and the U-shaped driving wheel 23 enables the curtain opener to be stably combined with the Roman rod 39.
The double-shaft motor 12 drives the U-shaped driving wheel 23 to rotate, the bearing on the toothed semi-ring 1 rolls, and the Roman rod type curtain opener moves left and right under the action of friction force. When the curtain is opened, the first curtain opener 33 and the second curtain opener 34 move towards the two ends to push the two ends of the curtain hanging ring to move, the curtain hanging ring is closed, and the curtain is opened. When the curtain is closed, the first curtain opener 33 and the first curtain opener 34 move towards the middle, the curtain hanging rings are pulled to move towards the middle, the curtain hanging rings are scattered, and the curtain is closed. Thus, the curtain opening and closing task is completed. The Roman rod type curtain opening and closing device of the invention enables the common Roman rod type curtain to be automatic and intelligent in a simple mode.
When the roman-rod-type curtain opener of the present invention is installed, the open-type curtain opener is placed on the roman rod 39. When the switch shaft 30 is pressed out, the switch shaft 30 moves outward, the chucking rack 20 is changed from wide-shaft support of the switch shaft 30 to narrow-shaft support of the switch shaft 30, the second pressing spring 21 directly presses the chucking rack 20, and the chucking rack 20 rotates outward. The toothed half ring 1 is screwed into the clamping rack 20. The clamping rack 20 is extruded by the toothed semi-ring 1, the clamping rack 20 rotates inwards, the second compression spring 21 is compressed, and the rotation of the clamping rack is stopped. Under the pressure of the second compression spring 21, the teeth of the clamping rack 20 are meshed with the teeth of the toothed half ring 1, are screwed out and locked, and are in a clamping state. The toothed half-ring 1 is now closed with the housing 3 by the clamping rack 20. The roman rod type curtain opening and closing device can be naturally hung on the roman rod 39. The toothed half ring 1 is adjusted to be in contact with the roman rod 39 and can still rotate, and the position of the bearing on the toothed half ring 1 is adjusted to be in contact with the roman rod 39 uniformly. And finally, the toothed semi-ring 1 is pressed tightly, the clamping rack 20 is meshed with the toothed semi-ring 1 for clamping, and the curtain opener can be stably attached to the Roman rod 39.
The double-shaft motor 12 drives the U-shaped driving wheel 23 through the synchronous belt, and drives the curtain opener to move left and right on the Roman rod 39 under the action of friction force. The curtain opening and closing device pushes the curtain hanging ring to one side, and the curtain is opened. The curtain opening and closing device pulls the curtain hanging ring open, and the curtain is closed.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A curtain opening and closing device is characterized by comprising a shell, a toothed semi-ring, a clamping mechanism and a U-shaped driving wheel, wherein the toothed semi-ring penetrates through the two sides inside and outside the shell and rotates around a fixed rotation center;
the Roman rod is inserted between the U-shaped driving wheel and the toothed semi-ring, and the curtain body is hung on the Roman rod through a plurality of hanging rings.
2. The curtain opening and closing device according to claim 1, wherein: the U-shaped driving wheel is driven by a driving assembly which is fixed in the shell and positioned at the lower part of the U-shaped driving wheel; the teeth of the toothed semi-ring are matched and clamped with the clamping mechanism, so that a closed annular structure is formed.
3. The curtain opening and closing device according to claim 1, wherein: the clamping mechanism comprises a rack support connected with the shell and a clamping rack rotatably connected to the rack support; the clamping rack is provided with a reserved spring slot position and a square hole, a second compression spring is arranged in the spring slot position, and the switch shaft is assembled in the square hole.
4. The curtain opening and closing device according to claim 1, wherein: the two sides of the toothed semi-ring are respectively provided with a first bearing support piece and a third bearing support piece, the first bearing support piece and the third bearing support piece form a first bearing support assembly, and the first bearing and the second bearing are sleeved at the two ends of the first bearing support assembly.
5. The curtain opening and closing device as claimed in claim 4, wherein: and a second bearing support piece and a fourth bearing support piece are respectively arranged on two sides of the toothed semi-ring, the second bearing support piece and the fourth bearing support piece and the toothed semi-ring form a second bearing support assembly, and a third bearing and a fourth bearing are sleeved at two ends of the second bearing support assembly.
6. The curtain opening and closing device according to claim 1, wherein: the driving assembly comprises a double-shaft motor fixed in a shell, a first D-shaft support and a second D-shaft support which are fixed in the shell and located on two sides of the upper portion of the double-shaft motor respectively, a D-shaped shaft which is rotatably arranged between the first D-shaft support and the second D-shaft support, a U-shaped driving wheel which is sleeved and fixed in the middle of the D-shaped shaft, and a first D-shaft synchronizing wheel and a second D-shaft synchronizing wheel which are sleeved and fixed at two end portions of the D-shaped shaft respectively.
7. The curtain opening and closing device as claimed in claim 5, wherein: the output ends of the double-shaft motor at two sides are respectively sleeved with a first motor synchronous wheel and a second motor synchronous wheel; and the first D-shaft synchronizing wheel and the first motor synchronizing wheel and the second D-shaft synchronizing wheel and the second motor synchronizing wheel are connected through a first synchronous belt and a second synchronous belt respectively to realize power transmission.
8. The working method of the curtain opening and closing device is characterized in that: the toothed semi-ring is controlled to be meshed with and separated from the clamping rack through the switch shaft; pressing in the switch shaft to separate the clamping rack from the toothed semi-ring and screwing out the toothed semi-ring to open the curtain opener; the switch shaft is pressed out, the toothed semi-ring is screwed in to be meshed with the clamping rack for clamping, and the curtain opener is closed.
9. The method of claim 8, further comprising the steps of:
step 1, a double-shaft motor drives a U-shaped driving wheel to rotate, a bearing on a toothed semi-ring rolls, and a Roman rod type curtain opening and closing device moves left and right under the action of friction force;
step 2, when the curtain is opened, the Roman rod type curtain openers move towards the two ends to push the curtain hanging rings to move towards the two ends, the curtain hanging rings are folded, and the curtain is opened; when the curtain is closed, the Roman rod type curtain opener moves towards the middle, the curtain hanging ring is pulled to move towards the middle, the curtain hanging ring is scattered, and the curtain is closed;
step 3, when the curtain opening and closing device is installed, the curtain opening and closing device in an open state is placed on the roman pole; the switch shaft is pressed out, the switch shaft moves outwards, the clamping rack is changed from the wide-shaft support of the switch shaft to the narrow-shaft support of the switch shaft, the second compression spring directly presses the clamping rack, and the clamping rack rotates outwards;
step 4, screwing the toothed semi-ring into the clamping rack, extruding the clamping rack by the toothed semi-ring, enabling the clamping rack to rotate inwards, compressing the second compression spring, and stopping rotating to press the rack tightly; under the pressure of a second compression spring, the teeth of the clamping rack are meshed with the teeth of the toothed semi-ring, screwed out and locked, and are in a clamping state;
step 5, adjusting the toothed semi-ring to enable the toothed semi-ring to be in a contact state with the Roman rod and still rotate; adjusting the position of the toothed semi-ring bearing to be uniformly contacted with the Roman rod; and finally, the toothed semi-ring is pressed tightly, and the clamping rack is meshed and clamped with the toothed semi-ring, so that the curtain opener is attached to the roman rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011288228.7A CN112450708B (en) | 2020-11-17 | 2020-11-17 | Curtain opening and closing device and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011288228.7A CN112450708B (en) | 2020-11-17 | 2020-11-17 | Curtain opening and closing device and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112450708A true CN112450708A (en) | 2021-03-09 |
| CN112450708B CN112450708B (en) | 2022-08-30 |
Family
ID=74836508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011288228.7A Active CN112450708B (en) | 2020-11-17 | 2020-11-17 | Curtain opening and closing device and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112450708B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220047107A1 (en) * | 2020-08-14 | 2022-02-17 | Woan Technology (Shenzhen) Co. Ltd. | Opening and closing device for A curtain |
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| JPH0349595A (en) * | 1989-07-17 | 1991-03-04 | Johnan Seisakusho Co Ltd | Linear motor apparatus |
| CN2532774Y (en) * | 2002-01-08 | 2003-01-29 | 郭海兵 | Electric curtain device |
| TWM315555U (en) * | 2007-01-31 | 2007-07-21 | Iou Ju Co Ltd | Opening-closing, linking apparatus for pull-to-close typed window curtains |
| CN102657470A (en) * | 2012-05-03 | 2012-09-12 | 孙升芳 | Window curtain pull ring |
| GB2514463A (en) * | 2013-03-16 | 2014-11-26 | Musa Kabiri | A Curtain drawing truck |
| CN110623511A (en) * | 2019-10-18 | 2019-12-31 | 杨小慧 | Intelligent single-opening type curtain |
| CN211511380U (en) * | 2019-12-30 | 2020-09-18 | 杨红新 | Automatic curtain rod |
| CN111743373A (en) * | 2020-07-16 | 2020-10-09 | 东莞市星火齿轮有限公司 | Curtain controller capable of being replaced |
| CN211631124U (en) * | 2019-12-05 | 2020-10-09 | 曹平 | Forestry engineering seedling cultivation righting device |
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2020
- 2020-11-17 CN CN202011288228.7A patent/CN112450708B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0349595A (en) * | 1989-07-17 | 1991-03-04 | Johnan Seisakusho Co Ltd | Linear motor apparatus |
| CN2532774Y (en) * | 2002-01-08 | 2003-01-29 | 郭海兵 | Electric curtain device |
| TWM315555U (en) * | 2007-01-31 | 2007-07-21 | Iou Ju Co Ltd | Opening-closing, linking apparatus for pull-to-close typed window curtains |
| CN102657470A (en) * | 2012-05-03 | 2012-09-12 | 孙升芳 | Window curtain pull ring |
| GB2514463A (en) * | 2013-03-16 | 2014-11-26 | Musa Kabiri | A Curtain drawing truck |
| CN110623511A (en) * | 2019-10-18 | 2019-12-31 | 杨小慧 | Intelligent single-opening type curtain |
| CN211631124U (en) * | 2019-12-05 | 2020-10-09 | 曹平 | Forestry engineering seedling cultivation righting device |
| CN211511380U (en) * | 2019-12-30 | 2020-09-18 | 杨红新 | Automatic curtain rod |
| CN111743373A (en) * | 2020-07-16 | 2020-10-09 | 东莞市星火齿轮有限公司 | Curtain controller capable of being replaced |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220047107A1 (en) * | 2020-08-14 | 2022-02-17 | Woan Technology (Shenzhen) Co. Ltd. | Opening and closing device for A curtain |
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| Publication number | Publication date |
|---|---|
| CN112450708B (en) | 2022-08-30 |
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