CN115306288B - Torsion driving unit, shutter curtain and interactive shutter curtain - Google Patents

Torsion driving unit, shutter curtain and interactive shutter curtain Download PDF

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Publication number
CN115306288B
CN115306288B CN202210814247.1A CN202210814247A CN115306288B CN 115306288 B CN115306288 B CN 115306288B CN 202210814247 A CN202210814247 A CN 202210814247A CN 115306288 B CN115306288 B CN 115306288B
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CN
China
Prior art keywords
torsion
blind
driving
window
slot hole
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CN202210814247.1A
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Chinese (zh)
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CN115306288A (en
Inventor
范平清
胡鑫洋
马西沛
郭辉
孙裴
赵恒�
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Shanghai University of Engineering Science
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Shanghai University of Engineering Science
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Priority to CN202210814247.1A priority Critical patent/CN115306288B/en
Publication of CN115306288A publication Critical patent/CN115306288A/en
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/36—Lamellar or like blinds, e.g. venetian blinds with vertical lamellae ; Supporting rails therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/36—Lamellar or like blinds, e.g. venetian blinds with vertical lamellae ; Supporting rails therefor
    • E06B9/368—Driving means other than pulling cords
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings

Abstract

The invention belongs to the field of intelligent home furnishing, and discloses a torsion driving unit, a shutter curtain and an interactive shutter curtain, which enable opening forms of the curtain and lighting areas to be flexibly arranged, so that the use experience of a user is further improved; the blind comprises a plurality of torsion driving units and strip window leaves inserted into the torsion driving units; the interactive blind comprises a blind, a plurality of driving components and a control unit for controlling a preset area of a window surface of the blind to be opened through the driving components.

Description

Torsion driving unit, shutter curtain and interactive shutter curtain
Technical Field
The invention belongs to the field of intelligent home furnishing, and particularly relates to a torsion driving unit, a blind curtain and an interactive blind curtain.
Background
The curtain is an important member in furniture and is mainly used for opening and closing a window and an external light environment so as to regulate indoor lighting to the outside. Along with the continuous improvement of living standard, people have new demands on the opening form of the curtain and the flexible setting of the lighting area on the aspect of requiring the curtain to meet the lighting requirement.
But obviously, after the prior curtain is purchased by a user, the opening form and lighting area of the prior curtain cannot be changed, so that the use experience of the user cannot be further improved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the torsion driving unit, the blind curtain and the interactive blind curtain, so that the opening form of the curtain and the lighting area can be flexibly set, and the use experience of a user is further improved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a torsion drive unit, comprising: twisting the grillage; the torsion plate frame is provided with an inserting plate and an inserting plate which are parallel to each other, the inserting plate is provided with a linear inserting slot, the centers of orthographic projections of the inserting slot and the inserting slot are overlapped, and the included angle of orthographic projections of the inserting slot and the inserting slot is a preset angle.
A blind, comprising: a louver having a plurality of elongated louvers disposed in a lateral direction and extending in a vertical direction; a plurality of torsion driving units, the torsion driving unit being the torsion driving unit of claim 1, wherein the elongated window blade passes through the insertion slot and the ejection slot at the same time, and the width direction of the elongated window blade corresponds to the extending direction of the insertion slot and the ejection slot, and the torsion driving unit is movably disposed along the length direction of the elongated window blade.
Preferably, each long-strip window leaf corresponds to two torsion driving units, each long-strip window leaf passes through two torsion grillages simultaneously, and the inserting slots of the two torsion grillages are opposite, and the inserting slots are opposite.
Further, the torsion driving unit further comprises a fixing bracket fixedly arranged on the torsion plate frame, and the fixing bracket is provided with a detachable fixing part.
Further, the fixing portion is a pressing block fixed on the fixing support through a screw, and the fixing portion is provided with a zigzag structure end face.
An interactive blind, comprising: the shutter curtain is the shutter curtain; the driving assemblies are corresponding to the strip window leaves, each driving assembly is provided with two synchronous belts, the fixing parts are detachably arranged on the synchronous belts, and the synchronous belts are used for correspondingly driving the torsion driving units to move along the extending direction of the strip window leaves; the control unit is provided with a processor and a plurality of pairs of control nodes, the processor correspondingly controls a plurality of synchronous belts to act through the plurality of pairs of control nodes, the control unit is used for controlling all the torsion grillages to enclose a preset area in a window surface area of the shutter, and the preset area is planned on the basis of a user in the visual interaction terminal.
Preferably, the present invention further includes a mounting base frame having a curtain accommodating space for accommodating the blind and a control accommodating space for accommodating the control unit.
Further, the driving assembly comprises two synchronous belt mechanisms, each synchronous belt mechanism comprises a driving motor, a synchronous belt arranged at the output end of the driving motor and a tensioning wheel tensioning the synchronous belt, and the driving motor is alternatively arranged at the upper end and the lower end of the curtain accommodating space.
Further, the curtain accommodating space is provided with a light shielding plate, which is disposed between the timing belt and the long strip window vane, and ambient light enters through a side portion of the installation base frame.
Further, the mounting base frame further includes a guide rail provided along an extending direction of the long-strip window vane, the torsion driving unit further includes a guide shoe provided on an end face of the fixing bracket away from the torsion plate frame, and the guide shoe is engaged with the guide rail.
Compared with the prior art, the invention has the beneficial effects that:
1. because the torsion driving unit comprises the torsion plate frame, the torsion plate frame is provided with the inserting plate and the inserting plate which are parallel to each other, the inserting plate is provided with the linear inserting slot, the centers of orthographic projections of the inserting slot and the inserting slot are overlapped, and the included angle of orthographic projections of the inserting slot and the inserting slot is a preset angle, the strip window leaves penetrate through the inserting slot and the inserting slot, so that the strip window leaves are twisted after penetrating through the torsion plate frame, and the opening form of the curtain and the lighting area can be flexibly arranged, thereby further improving the use experience of users.
2. Since the blind of the present invention includes the blind and the plurality of the above-mentioned torsion driving units, the blind has the plurality of elongated slats disposed in the lateral direction and extending in the vertical direction, and the elongated slats pass through the insertion slot holes and the extraction slot holes at the same time, the blind of the present invention can twist the elongated slats conveniently based on the above-mentioned torsion driving units, thereby changing the open state of the blind.
3. Since the fixing portion of the present invention is a pressing block fixed to the fixing bracket by a screw and the fixing portion has a zigzag structure end face, the present invention can be fixed to the movable member by the fixing portion, thereby realizing non-contact driving of the torsion driving unit.
4. Because the interactive blind disclosed by the invention is characterized by comprising the blind, a plurality of driving components and a control unit, wherein the driving components correspond to the strip-shaped window leaves, the driving components are provided with two synchronous belts, the fixing parts are detachably arranged on the synchronous belts, the synchronous belts are correspondingly used for driving the torsion driving units to move along the extending direction of the strip-shaped window leaves, the control unit is provided with a processor and a plurality of pairs of control nodes, the processor correspondingly controls the plurality of synchronous belts through the plurality of pairs of control nodes, the control unit is used for controlling all torsion grilles to surround a preset area in the window surface area of the blind, and the preset area is planned on the basis of a visual interaction terminal by a user.
5. Because the driving assembly comprises two synchronous belt mechanisms, the synchronous belt mechanisms comprise a driving motor, a synchronous belt arranged at the output end of the driving motor and a tensioning wheel for tensioning the synchronous belt, and the driving motor is alternatively arranged at the upper end and the lower end of the curtain accommodating space, the invention can accurately control the moving distance of the torsion driving unit on the strip window leaf through the synchronous belt mechanisms, thereby accurately enclosing a preset area according to the control unit and the visual interaction terminal.
6. Because the curtain accommodating space is provided with the light shielding plate, the light shielding plate is arranged between the synchronous belt and the strip window leaves, and ambient light enters through the side part of the mounting base frame, the curtain accommodating space can be used as large-scale indoor interactive decoration, and the synchronous belt is completely shielded.
Drawings
FIG. 1 is a schematic view of an interactive blind according to an embodiment of the present invention;
FIG. 2 is a schematic view of an interactive blind according to an embodiment of the present invention;
FIG. 3 is a partial schematic view of the upper end of FIG. 2;
FIG. 4 is a partial schematic view of the lower end of FIG. 2;
FIG. 5 is a schematic diagram illustrating the cooperation of a driving motor and a timing belt according to an embodiment of the present invention;
fig. 6 is a structural view of a torsion driving unit according to an embodiment of the present invention;
FIG. 7 is an exploded view of a stationary gantry and timing belt according to an embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating the cooperation of the fixing bracket and the driving assembly according to an embodiment of the present invention;
fig. 9 is a schematic step diagram of a blind opening area setting method according to an embodiment of the present invention.
In the figure: 100. the device comprises an interactive blind curtain, 10, an installation base frame, 11, a curtain accommodating space, 12, a control accommodating space, 20, a blind, 21, a long window vane, 30, a torsion driving unit, 31, a fixed support, 311, a fixed part, 32, a torsion plate frame, 321, an insertion plate, 3211, an insertion slot hole, 322, an insertion plate, 3221, an insertion slot hole, 40, a driving assembly, 41, a driving motor, 42, a synchronous belt, 43, a tensioning wheel, 50, a control unit, S100 and a blind opening area setting method.
Detailed Description
In order to make the technical means, creation features, achievement of objects and effects of the present invention easy to understand, the following embodiments specifically describe an interactive blind of the present invention with reference to the accompanying drawings, and it should be noted that the descriptions of these embodiments are used to help understand the present invention, but not to limit the present invention.
Example 1
As shown in fig. 1 and 2, the interactive blind 100 in the present embodiment includes a mounting base frame 10, a blind 20, a torsion driving unit 30, a driving assembly 40, and a control unit 50.
As shown in fig. 3 and 4, the installation base frame 10 is an installation base frame for installing the rest of the components of the present invention, and has a window covering accommodating space 11 and a control accommodating space 12, wherein the window covering accommodating space 11 is used for accommodating the window covering 20, the control accommodating space 12 is used for accommodating the control unit 50, specifically, the installation base frame 10 is a two-layered upright plate frame, the upper layer is the window covering accommodating space 11, the lower layer is the control accommodating space 12, and in this embodiment, the lower layer is generally embedded in a wall body.
The louver 20 has a plurality of elongated louvers 21 disposed in the lateral direction and extending in the vertical direction.
As shown in fig. 5 to 8, the number of the torsion driving units 30 is plural, and each of the long slats 21 has two torsion driving units 30 disposed one above the other.
The torsion driving unit 30 has a torsion bar frame 32 and a fixing bracket 31 fixed to the torsion bar frame 32.
The fixing bracket 31 has a fixing portion 311, the fixing portion 311 is detachably mounted on the fixing bracket 31, in this embodiment, the fixing bracket 31 is i-steel, the h-steel is arranged along the depth direction of the mounting base frame 10, the torsion plate frame 32 is mounted on one top plate surface of the i-steel, the fixing portion 311 is a pressing block fixed on the waist plate portion of the fixing bracket 31 by a screw, and an end surface facing the waist plate portion is a zigzag end surface structure.
The torsion plate frame 32 has an insertion plate 321 and an insertion plate 322 disposed parallel to each other in the longitudinal direction of the long strip window 21, the insertion plate 321 has a linear insertion slot 3211, the insertion plate 322 has a linear insertion slot 3221, the center line of the insertion slot 3211 and the insertion slot 3221 is disposed along the extending direction of the long strip window 21, that is, the centers of the orthographic projections of the insertion slot 3211 and the insertion slot 3221 coincide, and the long strip window 21 passes through the insertion slot 3211 and the insertion slot 3221 at the same time, and the width direction of the long strip window 21 corresponds to the extending direction of the insertion slot 3211 and the insertion slot 3221, and the angle of the orthographic projections of the insertion slot 3211 and the insertion slot 3221 is a predetermined angle, which is 90 ° in this embodiment, that is, the insertion slot 3211 and the insertion slot 3221 are mutually perpendicular.
Each of the long-strip window blades 21 passes through the two torsion grillages 32 at the same time, and the insertion slots 3221 of the two torsion grillages 32 are opposite, the insertion slots 3211 are opposite, specifically, the long-strip window blades 21 are twisted at a predetermined angle on the insertion plate 321 and the insertion plate 322, when the two torsion grillages 32 on the long-strip window blades 21 are adjacent up and down, the long-strip window blades 21 outside the two torsion grillages 32 are kept in an untwisted open state; when the two torsion grilles 32 on the strip window 21 are spaced a predetermined distance up and down, the strip window 21 portion at the predetermined distance is twisted by a predetermined angle, so that the opening state of the strip window 21 portion is different from that of the other strip window 21 portions, and thus, the light-transmitting backlight is different, so that the shutter 20 presents a corresponding pattern, in this embodiment, the strip window 21 which is not twisted is completely opaque, and the twisted strip window 21 is completely transparent.
The number of the driving components 40 is plural, and the driving components 40 are in one-to-one correspondence with the long window blades 21, and each driving component 40 comprises two synchronous belt mechanisms, wherein each synchronous belt mechanism comprises a driving motor 41, a synchronous belt 42 arranged at the output end of the driving motor 41, and a tensioning wheel 43 for tensioning the synchronous belt.
The driving motor 41 is alternatively disposed at the upper and lower ends of the window curtain accommodating space 11, in this embodiment, the installation base frame 10 has window curtain fixing beams (not shown in the drawing) and driving fixing beams (not shown in the drawing) which are sequentially distributed along the depth direction of the installation base frame 10 and are parallel to each other, the window shutter 20 is installed on the window curtain fixing beams, and the driving motor 41 is installed on the driving fixing beams.
The timing belt 42 is used for correspondingly driving the torsion driving unit 30 to move along the extending direction of the elongated window vane 21, (the broken appearance of the timing belt 42 in fig. 8 indicates that the linearly extending portion of the timing belt is omitted), specifically, the fixing portion 311 is detachably mounted on the timing belt 42, two timing belts 42 are respectively mounted on the two fixing brackets 31, and the two timing belts 42 are respectively located at opposite sides of the waist plate portion of the fixing bracket 31, in this embodiment, the timing belt 42 is purchased in a roll, and in the process of being fixed by the fixing portion 311, the timing belt 42 is broken at both sides of the threaded hole of the waist plate portion of the fixing bracket 31, the fixing portion 311 simultaneously presses edges of the two sections, and is screwed into compression by the threads, so that the timing belt 42 is fixed with the fixing bracket 31.
The control unit 50 is used to map a predetermined area set by a user through the visual interactive terminal onto the window blind 20 through the torsion bar bracket 32.
The control unit 50 has a processor and a plurality of pairs of control nodes, and the processor correspondingly controls the driving motor 41 through the plurality of pairs of control nodes, so as to drive the plurality of synchronous belts 42 to independently move, so that all the torsion grillage 32 encloses a predetermined area in the window area of the shutter 20, and the predetermined area is planned based on a user at the visual interactive terminal.
As shown in fig. 9, the blind opening area setting method S100 in this embodiment is implemented by the interactive blind 100 in combination with a visual interactive terminal, and includes the following steps:
step S1: and setting a preset area in the visual interaction terminal, wherein the preset area is provided with an upper area contour line and a lower area contour line which are distributed up and down.
Specifically, the visual interactive terminal prestores a plurality of candidate areas, and the candidate areas are selectively selected by user interaction and set as predetermined areas.
In this embodiment, the candidate area is usually a specific closed graph, the visual interaction terminal has a touch display screen, and the visual interaction terminal has a selection interface of the candidate area, all candidate areas for selection are displayed in the selection interface, the user selects the candidate area with a tendency of selection as a predetermined area by touching the candidate area, for example, the interface has candidate areas of "Σ", "Δj, and the user selects" Δjas the predetermined area, and the visual interaction terminal can update the candidate area by downloading an update program.
Step S2: a predetermined area is mapped onto the louver 20, and a louver portion between an area upper contour line and an area lower contour line is twisted by a predetermined angle in a length direction of the elongated louver 21 of the louver 20.
Specifically, a portion of the elongated window 21 between the two torsion driving units 30 is twisted compared with the remaining elongated window 21, so that the elongated window 32 between the two torsion driving units is partially twisted, so that the light transmission state of the elongated window 21 is different from that of the elongated window 21 which is not twisted, and the different light transmission state enables the same pattern as the predetermined area to be mapped on the louver 20.
< example two >
In the second embodiment, the same reference numerals are given to the same structures as those in the first embodiment, and the same description is omitted.
In the second embodiment, the blind opening area setting method S100 is different from the first embodiment in that:
step S1 comprises the following sub-steps:
step S1-1: and reconstructing the window surface area of the shutter 20 in two dimensions at the visual interaction terminal, and forming a planning area.
Specifically, the visual interactive terminal has a planned area presented in pages, which is a two-dimensional reconstruction of the window area of the blind 20.
Step S1-2: the number of elongated slats 21 of the blind 20 is entered as a slat number into the visual interactive terminal such that the planning area is divided in the lateral direction into a number of mutually adjoining slats of vertically extending planning sub-areas.
Specifically, the number of the strip-shaped window leaves 21 is input as an input parameter to the visual interaction terminal, so that a planning area generates a plurality of horizontally adjacent blade subareas, and the plurality of blade subareas correspond to the plurality of strip-shaped window leaves 21.
Step S1-3: and sequentially inputting an upper contour line of the area and a lower contour line of the area along the vertical direction in the planning area.
In this embodiment, the visual interactive terminal has a visual touch display screen, and the user draws a required predetermined area, such as "o", in the planned area by means of touch, and the control unit 50 controls the plurality of synchronous belts 42 to drive the torsion plate frame 32 to move through the plurality of pairs of control nodes, so that a predetermined area is enclosed in the window area of the shutter 20.
Example III
In the third embodiment, the same reference numerals are given to the same structures as those in the first embodiment, and the same description is omitted.
In the third embodiment, the structure and application of the interactive blind 100 are different from those of the first and second embodiments in that:
the curtain accommodating space 11 is provided with a shutter (not shown in the drawings) provided between the timing belt 42 and the elongated window vane 21, and ambient light enters through the side of the mounting base frame 10, specifically, the shutter shields the timing belt 42 so that the timing belt 42 is not seen when the window blind 20 presents a pattern.
The mounting base frame 10 further includes a guide rail (not shown in the drawings) provided along the extending direction of the elongated window vane 21, and the torsion driving unit 30 further includes a guide shoe (not shown in the drawings) provided on an end surface of the fixing bracket 31 remote from the torsion bar frame 32, and the guide shoe is engaged with the guide rail, so that the torsion bar frame 32 can be moved more stably along the extending direction of the elongated window vane 21, and in particular, the guide rail is not seen when the window blind 20 presents a pattern.
The above embodiments are preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications or variations which may be made by those skilled in the art without the inventive effort within the scope of the appended claims remain within the scope of this patent.

Claims (9)

1. A torsion drive unit, comprising:
twisting the grillage;
the torsional grillage has the board of inserting and the board of inserting that is parallel to each other, the board of inserting has the linear type insert slot hole, and insert the slot hole with insert the center coincidence of the orthographic projection of slot hole, insert the slot hole with insert the contained angle of orthographic projection of slot hole for predetermined angle, through passing rectangular window leaf insert the slot hole and insert the slot hole for rectangular window leaf twists in passing torsional grillage, thereby make the blind that comprises rectangular window leaf open form and daylighting area can set up in a flexible way.
2. A blind, comprising:
a louver having a plurality of elongated louvers disposed in a lateral direction and extending in a vertical direction;
a plurality of torsion drive units, which are the torsion drive units of claim 1,
wherein the long strip window blade passes through the insertion slot hole and the insertion slot hole at the same time, the width direction of the long strip window blade corresponds to the extending direction of the insertion slot hole and the insertion slot hole, the torsion driving unit is movably arranged along the length direction of the long strip window blade,
each long-strip window leaf corresponds to two torsion driving units, each long-strip window leaf simultaneously passes through two torsion grillages, inserting slot holes of the two torsion grillages face to face, and inserting slot holes are opposite to each other.
3. The blind of claim 2 wherein:
the torsion driving unit further comprises a fixing bracket fixedly arranged on the torsion plate frame, and a detachable fixing part is arranged on the fixing bracket.
4. A blind according to claim 3, wherein:
the fixing part is a pressing block fixed on the fixing support through a screw, and the fixing part is provided with a zigzag structure end face.
5. An interactive blind, comprising:
a blind, which is the blind of claim 3;
the driving assemblies are corresponding to the strip-shaped window leaves, the driving assemblies are provided with two synchronous belts, the fixing parts are detachably arranged on the synchronous belts, and the synchronous belts are used for correspondingly driving the torsion driving units to move along the extending direction of the strip-shaped window leaves; and
the control unit is provided with a processor and a plurality of pairs of control nodes, the processor correspondingly controls a plurality of synchronous belts to act through the plurality of pairs of control nodes, the control unit is used for controlling all the torsion grillage to enclose a preset area in a window area of the shutter, and the preset area is planned on the basis of a user in the visual interaction terminal.
6. The interactive blind of claim 5 further comprising:
the installation bed frame has curtain accommodation space and control accommodation space, the curtain accommodation space is used for holding the shutter, and control accommodation space is used for holding the control unit.
7. The interactive blind of claim 6 wherein:
the driving assembly comprises two synchronous belt mechanisms, wherein each synchronous belt mechanism comprises a driving motor, a synchronous belt arranged at the output end of each driving motor and a tensioning wheel for tensioning the synchronous belt, and the driving motor is alternatively arranged at the upper end and the lower end of the curtain accommodating space.
8. The interactive blind of claim 6 wherein:
wherein, the curtain accommodation space is provided with a light shielding plate which is disposed between the timing belt and the long strip window leaf, and ambient light enters through the side portion of the installation base frame.
9. The interactive blind of claim 6 wherein:
the torsion driving unit further comprises a guide shoe which is arranged on the end face of the fixing support far away from the torsion plate frame, and the guide shoe is matched with the guide rail.
CN202210814247.1A 2022-07-11 2022-07-11 Torsion driving unit, shutter curtain and interactive shutter curtain Active CN115306288B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210814247.1A CN115306288B (en) 2022-07-11 2022-07-11 Torsion driving unit, shutter curtain and interactive shutter curtain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210814247.1A CN115306288B (en) 2022-07-11 2022-07-11 Torsion driving unit, shutter curtain and interactive shutter curtain

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CN115306288A CN115306288A (en) 2022-11-08
CN115306288B true CN115306288B (en) 2023-06-02

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