CN207160944U - A kind of curtain and its classroom and public place of application - Google Patents
A kind of curtain and its classroom and public place of application Download PDFInfo
- Publication number
- CN207160944U CN207160944U CN201721196856.6U CN201721196856U CN207160944U CN 207160944 U CN207160944 U CN 207160944U CN 201721196856 U CN201721196856 U CN 201721196856U CN 207160944 U CN207160944 U CN 207160944U
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- China
- Prior art keywords
- curtain
- curtain layer
- layer
- peace
- pipe crimping
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Abstract
Articles for daily use technical field is the utility model is related to, more particularly, to a kind of curtain and applies its classroom and public place.The curtain includes：Upper curtain layer, upper peace turn component, lower curtain layer and lower peace and turn component；The upper curtain layer turns component with upper peace and is connected, and can be deployed and be furled from top to bottom；The lower curtain layer turns component with lower peace and is connected, and can be deployed and be furled from bottom to top；It is staggered between the upper curtain layer and the lower curtain layer, and the lower curtain layer has the gradient color light modulation region that color is deepened in gradient.The utility model, which has, allows the more uniform effect of classroom illumination, so that facing the irradiation of window desk sunburst can effectively control, and gradient color curtain has effectively taken into account the illumination by wall desk, face window to being improved the problem of leaning on wall desk illumination hard, classroom illumination lamp is reduced while adding natural light irradiation.The utility model input cost is relatively low, and simple, positive effect is implemented in installation.
Description
Technical field
Articles for daily use technical field is the utility model is related to, classroom and public affairs more particularly, to a kind of curtain and using it
Place altogether, more particularly to one kind allow the more uniform curtain of classroom natural light irradiation.
Background technology
At present, in the market has a variety of curtain to keep the sun off, but can not all meet not only uniform-light transmission but also can gradual change regulation light
According to requirement.When classroom sunlight is uneven, the method for often blocking strong illumination with drawing the curtain together solves, but due to window
Curtain is longitudinal shading, is endangered so always having part classmate by strip light；Classroom needs benefit of turning on light after Close All curtain
Charging and lighting, it is so not only not environmentally but also unhealthy, also it is without access to the guarantee that full spectral illumination is developed to eye health.
The information for being disclosed in the background section is merely intended to deepen the reason to general background technology of the present utility model
Solution, and be not construed as recognizing or imply known to those skilled in the art existing of the information structure in any form
Technology.
Utility model content
The purpose of this utility model is to provide a kind of curtain and applies its classroom and public place, existing to solve
Curtain can not meet not only uniform-light transmission but also can gradual change regulation illumination technical problem.
To achieve these goals, the utility model uses following technical scheme：
In a first aspect, the utility model provides a kind of curtain, it includes：Upper curtain layer, it is upper peace turn component, lower curtain layer and
Lower peace turns component；The upper curtain layer turns component with upper peace and is connected, and can be deployed and be furled from top to bottom；The lower curtain
Layer turns component with lower peace and is connected, and can be deployed and be furled from bottom to top；Between the upper curtain layer and the lower curtain layer
It is staggered, and the lower curtain layer has the gradient color light modulation region that color is deepened in gradient.
As a kind of further technical scheme, the color in the gradient color light modulation region is in relative to the lower curtain layer
Gradient is deepened from top to bottom.
As a kind of further technical scheme, the gradient color light modulation region is described to be arranged atUnderPainting on curtain layer
Rotating fields.
As a kind of further technical scheme, gradient color light modulation region be located at the lower curtain layer side or
Bilateral.
As a kind of further technical scheme, the lower curtain layer is woven dacron or canvas.
As a kind of further technical scheme, the upper peace, which turns component, to be included：Head processed, upper pipe crimping, upper tail are inserted, underbeam,
First mounting bracket and the second mounting bracket；The head processed has bead, and the head processed is connected to the first end of the upper pipe crimping, described
The fixing end of upper curtain layer is connected with the upper pipe crimping, and the free end of the upper curtain layer is connected with the underbeam, the upper tail
The second end for being connected to the upper pipe crimping is inserted, first mounting bracket is connected with the head processed, for installed in window frame upper beam, institute
State the second mounting bracket and insert connection with the upper tail, for installed in window frame upper beam.
As a kind of further technical scheme, the lower peace, which turns component, to be included：Lower pipe crimping, first code, bottom rail, spring housing
Part, lower tail are inserted, tail code, upper beam, the first fixed pulley and the second fixed pulley；The spring package is arranged at the interior of the lower pipe crimping
Portion, for applying spring revolution torsion to the lower pipe crimping；The first end of the lower pipe crimping pass through first code and the bottom rail the
One end connects, and the second end of the lower pipe crimping inserts inserted with the lower tail, and the lower tail inserted the of tail code and the bottom rail
Two ends are connected, and the fixing end of the lower curtain layer is connected with the lower pipe crimping, free end and the upper beam of the lower curtain layer
Connection, the first drawstring is equipped with first fixed pulley, first drawstring is connected with the first end of the upper beam, and described the
The second drawstring is equipped with two fixed pulleys, second drawstring is connected with the second end of the upper beam.
As a kind of further technical scheme, the first end of the upper beam is provided with the first sealed piece, the upper beam
Second end is provided with the second sealed piece；The bottom of the bottom rail is connected with installation code.
Second aspect, the utility model also provide a kind of classroom, and it includes described curtain.The curtain includes：Upper curtain
Layer, upper peace turn component, lower curtain layer and lower peace and turn component；The upper curtain layer turns component with upper peace and is connected, can be from top to bottom
Deployed and furled；The lower curtain layer turns component with lower peace and is connected, and can be deployed and be furled from bottom to top；On described
It is staggered between curtain layer and the lower curtain layer, and the lower curtain layer has the gradient color light modulation that color is deepened in gradient
Region.
The third aspect, the utility model also provide a kind of public place, and it includes described curtain.The curtain includes：On
Curtain layer, upper peace turn component, lower curtain layer and lower peace and turn component；The upper curtain layer turns component and is connected with upper peace, can be from upper
Deployed and furled under and；The lower curtain layer turns component with lower peace and is connected, and can be deployed and be furled from bottom to top；Institute
State and be staggered between curtain layer and the lower curtain layer, and the lower curtain layer has the gradient color that color is deepened in gradient
Dim region.
Using above-mentioned technical proposal, the utility model has the advantages that：
The utility model provides a kind of curtain, has and allows the more uniform effect of classroom illumination so that it is strong to face window desk
Sunlight can be effectiveBlock, and gradient color curtain has effectively taken into account the illumination by wall desk simultaneously, faces windowWithBy wall class
The problem of table illumination hard, is improved, and reduces classroom illumination lamp while increasing natural light irradiation.This practicality is new
Type input cost is relatively low, and simple, good results are implemented in installation.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the assembling split schematic diagram that the upper curtain layer that the utility model embodiment provides turns component with upper peace；
Fig. 2 is the assembling split schematic diagram that the lower curtain layer that the utility model embodiment provides turns component with lower peace；
Fig. 3 is the schematic diagram of the first use state of the curtain of the utility model embodiment offer；
Fig. 4 is the schematic diagram of second of use state of curtain that the utility model embodiment provides；
Fig. 5 is the schematic diagram of the third use state of the curtain of the utility model embodiment offer；
Fig. 6 is the schematic diagram for the 4th kind of use state of curtain that the utility model embodiment provides.
Icon：The upper curtain layers of 1-；Curtain layer under 3-；6- direct sunlights；7- desks；The upper pipe crimpings of 21-；22- heads；23-
One mounting bracket；24- beads；The mounting brackets of 25- second；26- underbeams；The upper tails of 27- are inserted；Pipe crimping under 41-；42- first codes；43- bottom rails；
44- spring packages；46- installs code；47- lower tails are inserted；48- tail codes；The fixed pulleys of 49- second；The drawstrings of 50- second；51- first is slided surely
Wheel；The drawstrings of 52- first.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
Embodiment one
As shown in Figure 1 to Figure 2, the present embodiment provides a kind of curtain, and it includes：Upper curtain layer 1, upper peace turn component, lower window
Curtain layer 3 and lower peace turn component；The upper curtain layer 1 turns component with upper peace and is connected, and can be deployed and be furled from top to bottom；Institute
State lower curtain layer 3 to turn component with lower peace and be connected, can be deployed and be furled from bottom to top；The upper curtain layer 1 with it is described under
Be staggered (by the split layering shading of curtain) between curtain layer 3, and the lower curtain layer 3 has what color was deepened in gradient
Gradient color dims region.It can be seen that in order to make classroom sunlight more uniform, the present embodiment is using " split up and down plus gradient color "
Roller shutter curtain blocks unnecessary sunlight.
Wherein, " split up and down " curtain can strengthen dimming scope.
Wherein, the upper formal dress of curtain layer 1：Keep the sun off from top to bottom, " semi-transparent " material can be used；In strong light or stronger
Curtain layer 1 is closed in light irradiation environment ShiShimonoseki, is reached prime and is blocked effect with floodlight (refraction, reflection, transmission)；Upper curtain layer 1
Shielding rate in the range of 20%-30%, can indistinct saturating scape, spatial impression can be carried out to classroom window belt, attending class will not be because closing complete hide
Optical window curtain and feel oppressive；The floodlight of upper curtain layer 1 is the best implementing method of uniform illumination degree, and whole window is become to irradiate
Uniform area source.
Wherein, the lower upside-down mounting of curtain layer 3：Bottom-up classification keeps the sun off (shallow lower depth in color)；Use semi-transparent white
Window cloth, sprayed according to measurement data or print " gradient color " (black and green)；The lower window in strong light or compared with strong illumination environment
Curtain is closed, and is reached rear class and is blocked effect with floodlight；The lower shielding rate continuously transition in the range of 0~90% of curtain layer 3；Lower window
Curtain layer 3 can make up that curtain shading is inadequate, and the gradient color of lower curtain layer 3 is to face the best reply method of window desk to irradiation.
For lower curtain layer 3 gradient color dim the design in region can be according to being actually needed flexible setting.Such as：As one
Kind further technical scheme, the color in the gradient color light modulation region is relative to the lower curtain layer 3 in gradient from top to bottom
Deepen.
Also, it is preferred that, the gradient color light modulation region is described to be arranged atUnderCurtain layer3On coating structure.It is this
Coating structure can use the mode such as spraying or printing to be processed into.
In the present embodiment, it is preferred that the material that upper curtain layer 1 uses：Upper curtain layer 1 should saturating scape, dim light again, so
Semi transparent material should be used.The thicker impermeable scape of semi transparent material printing opacity, must be uniform with relatively thin quality, can guarantee that floodlight point
Cloth effect.
Material corresponding, that lower curtain layer 3 uses：Lower curtain layer 3 should increase top light transmission capacity, reduce again following saturating
Light quantity, so using gradient color material.Curtain is following gradually dark gradually light tight, curtain top gradually light gradual printing opacity.
Specifically, by constantly experiment, as a kind of further technical scheme, the lower curtain layer 3 be woven dacron or
Person's canvas.Certainly, this is only a kind of preferable mode, it is not excluded that the possibility of other materials application.
In the present embodiment, as a kind of further technical scheme, the gradient color light modulation region is located at the lower curtain
The side of layer 3 or bilateral.
In the present embodiment, for upper peace turns component, the mounting structure of the roller shutter of bead 24 can be used, such as：It is described
Upper peace, which turns component, to be included：Make first 22, upper pipe crimping 21, upper tail inserts 27, underbeam 26, the first mounting bracket 23 and the second mounting bracket 25；Institute
Stating system first 22 has bead 24, and the system first 22 is connected to the first end of the upper pipe crimping 21 (by pulling bead 24, system first 22
Pipe crimping 21 is rotated in drive), the fixing end of the upper curtain layer 1 is connected with the upper pipe crimping 21, the upper curtain layer 1
Free end is connected with the underbeam 26, and the upper tail inserts 27 the second ends for being connected to the upper pipe crimping 21, first mounting bracket
23 are connected with the system first 22, for inserting 27 installed in window frame upper beam, second mounting bracket 25 with the upper tail and being connected, be used for
Installed in window frame upper beam.This is simple in construction, convenient materials.
In the present embodiment, for lower peace turns component, the purpose is to make lower curtain upside-down mounting.
Such as：The lower peace, which turns component, to be included：Lower pipe crimping 41, first code 42, bottom rail 43, spring package 44, lower tail insert 47, tail
Code 48, upper beam, the first fixed pulley 51 and the second fixed pulley 49；The spring package 44 is arranged at the inside of the lower pipe crimping 41,
For applying spring revolution torsion (so that lower pipe crimping 41 has the trend of rotary motion so that lower curtain to the lower pipe crimping 41
Layer 3 can automatically retract), certainly, this mode has a variety of modes implemented, such as：Minitype motor driving institute can also be used
Lower pipe crimping 41 is stated rotated according to predetermined design；The first end of the lower pipe crimping 41 passes through first code 42 and the bottom rail
43 first end connection, the second end of the lower pipe crimping 41 insert 47 inserted with the lower tail, and the lower tail inserts 47 and passes through tail code 48
It is connected with the second end of the bottom rail 43, the fixing end of the lower curtain layer 3 is connected with the lower pipe crimping 41, the lower curtain layer
3 free end is connected with the upper beam, and the first drawstring 52, first drawstring 52 and institute are equipped with first fixed pulley 51
State the first end connection of upper beam, be equipped with the second drawstring 50 on second fixed pulley 49, second drawstring 50 with it is described on
The second end connection of beam (is realized by the first drawstring 52, the second drawstring 50 and pulls open lower curtain layer 3, certainly, it is also necessary to have drawstring
Fixed bit, no longer illustrate one by one herein).In addition, the first end of the upper beam is provided with the first sealed piece, the second of the upper beam
End is provided with the second sealed piece；The bottom of the bottom rail 43 is connected with installation code 46, so as to realize that the installation of bottom rail 43 is consolidated
It is fixed.The lower peace of the present embodiment turns that modular construction is ingenious in design, has used for reference the design principle of Semi-automatic clothes-airing pole, has been pulled open with fixed pulley
Curtain.
To sum up, the present embodiment provides a kind of curtain, has the following advantages that：
(1), religion indoor light intensity has accomplished controllable, adjustable, upper curtain layer 1BlockAdjustable extent is 0~42%, lower curtain
Layer 3BlockAdjustable extent is 0~85%, upper and lower curtain combinationBlockAdjustable extent is 0~93%.More than desired design 0~
60%.
(2), room light contrast (contrast) is taught to be weakened：Face window ratio under former natural light and lean on wall desk illumination mean difference
7.4 again；Face window ratio now plus after semi-transparent upper curtain layer 1 and lean on 4 times of wall desk illumination mean difference；Add curtain layer 3 under half gradient color
After face window ratio and lean on poor 3 times of wall (desk) illumination；Poor 4 times of wall illumination is leaned on plus window ratio is faced after lower curtain.Face in classroom window desk with
Half is reduced by wall desk average illumination difference, contrast reduces half.Reach expected light contrast (contrast) in classroom to weaken
The target of (10%~50%).
(3), the light distribution uniformity is improved in classroom, and nearly window desk irradiation value is with leaning on wall desk after installing new curtain additional
Irradiate difference to reduce, light curve is relatively slower from very abrupt change.
(4), the direct sunlight 6 of nearly window desk is all blocked, optical attenuation difference 0~93%, more than desired design
60%.
(5), solve the problems, such as that the shading of tradition window curtain longitudinal direction produces striation and influences part classmate, using horizontal shading not only
Face that window desk is non-dazzing, and it is middle and the illumination that more curtain tops open can be also obtained by wall desk.
(6), sunlight direct irradiation desk is caused student's ocular damage, influence student attend class effect the problem of solved
Certainly.
(7), on the premise of classroom illumination degree is not influenceed, solves the energy for the illumination that needs to turn on light after curtain blocks completely
The problem of wasting and cannot get natural light.
The present embodiment two
The present embodiment also provides a kind of classroom, and it includes the described curtain in embodiment one.
Specifically, including：Upper curtain layer 1, upper peace turn component, lower curtain layer 3 and lower peace and turn component；The upper curtain layer 1
Turn component with upper peace to be connected, can be deployed and be furled from top to bottom；The lower curtain layer 3 turns component with lower peace and is connected, energy
It is enough to be deployed and furled from bottom to top；It is staggered between the upper curtain layer 1 and the lower curtain layer 3 (by curtain pair
Open layering shading), and the lower curtain layer 3 has the gradient color light modulation region that color is deepened in gradient.It can be seen that in order to allow classroom
Sunlight is more uniform, and the present embodiment blocks unnecessary sunlight using " split up and down plus gradient color " roller shutter curtain.
Wherein, " split up and down " curtain can strengthen dimming scope.
Wherein, the upper formal dress of curtain layer 1：Keep the sun off from top to bottom, " semi-transparent " material can be used；In strong light or stronger
Curtain layer 1 is closed in light irradiation environment ShiShimonoseki, is reached prime and is blocked effect with floodlight (refraction, reflection, transmission)；Upper curtain layer 1
Shielding rate in the range of 20%-30%, can indistinct saturating scape, spatial impression can be carried out to classroom window belt, attending class will not be because closing complete hide
Optical window curtain and feel oppressive；The floodlight of upper curtain layer 1 is the best implementing method of uniform illumination degree.
Wherein, the lower upside-down mounting of curtain layer 3：Bottom-up classification keeps the sun off (shallow lower depth in color)；Use semi-transparent white
Window cloth, sprayed " gradient color " (black and green) according to measurement data；Lower curtain is closed in strong light or compared with strong illumination environment,
Reach rear class and block effect with floodlight；The lower shielding rate continuously transition in the range of 0~90% of curtain layer 3；Lower curtain layer 3 can
Inadequate to make up upper curtain shading, the gradient color of lower curtain layer 3 is to face the best reply method of window desk to irradiation.
Certainly, it has been described in detail in above example one for other structures, here is omitted.Below
Applicable cases of the curtain in classroom are introduced with reference to accompanying drawing.
(1), with reference to shown in Fig. 3,26.5 degree of angles of winter sunlight direct projection classroom.Winter and the morning and afternoon in spring and autumn, when sunlight shines
When penetrating stronger, with semi-transparent curtain diffusing reflection (upper curtain layer 1 leave behind), the light for passing through roof and wall reaches equal for window top
The distribution of even religion room light.
(2), with reference to shown in Fig. 4,50 degree of high noon irradiation classrooms of spring and autumn sunlight north latitude.Direct sunlight 6 is with transmission distance
Extend the floodlight with gradient color curtain top part transparent area, illumination is provided among classroom and by the desk 7 of wall；Gradient color window
The following part shading region of curtain, face the strong light of window desk offer to classroom and block.
(3), with reference to shown in Fig. 5,73 degree of angles of summer sunlight irradiation classroom.Summer and the noon in spring and autumn, when sunlight very
Qiang Shi, window block direct projection with upside-down mounting gradient color lightproof part below and (block sun with dark color absorption close to the sunlight of window
Light), non-direct projection area opens upper curtain.
(4), with reference to shown in Fig. 6,50 degree of high noon irradiation classrooms of spring and autumn sunlight north latitude.Curtain is applied in combination window up and down, energy
Enough accomplish Various Seasonal, according to circumstances different time, fully regulation classroom illumination distribution.
Embodiment three
The present embodiment also provides a kind of public place, and it includes the described curtain in embodiment one.Wherein, public place
Including but not limited to meeting room, exhibition room, factory building etc..
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
- A kind of 1. curtain, it is characterised in that including：Upper curtain layer, upper peace turn component, lower curtain layer and lower peace and turn component；It is described Upper curtain layer turns component with upper peace and is connected, and can be deployed and be furled from top to bottom；The lower curtain layer turns component with lower peace Connection, can be deployed and be furled from bottom to top；It is staggered between the upper curtain layer and the lower curtain layer, and it is described Lower curtain layer has the gradient color light modulation region that color is deepened in gradient.
- 2. curtain according to claim 1, it is characterised in that the color in gradient color light modulation region is relative under described Curtain layer is deepened in gradient from top to bottom.
- 3. curtain according to claim 1, it is characterised in that the gradient color light modulation region is to be arranged at the lower curtain Coating structure on layer.
- 4. curtain according to claim 1, it is characterised in that the gradient color light modulation region is located at the lower curtain layer Side or bilateral.
- 5. curtain according to claim 1, it is characterised in that the lower curtain layer is woven dacron or canvas.
- 6. curtain according to claim 1, it is characterised in that the upper peace, which turns component, to be included：Head processed, upper pipe crimping, upper tail Slotting, underbeam, the first mounting bracket and the second mounting bracket；The head processed has bead, and the head processed is connected to the of the upper pipe crimping One end, the fixing end of the upper curtain layer are connected with the upper pipe crimping, and the free end of the upper curtain layer is connected with the underbeam, The upper tail inserts the second end for being connected to the upper pipe crimping, and first mounting bracket is connected with the head processed, for installed in window Frame upper beam, second mounting bracket inserts connection with the upper tail, for installed in window frame upper beam.
- 7. curtain according to claim 1, it is characterised in that the lower peace, which turns component, to be included：Lower pipe crimping, first code, bottom rail, Spring package, lower tail are inserted, tail code, upper beam, the first fixed pulley and the second fixed pulley；The spring package is arranged at the lower pipe crimping Inside, for applying spring revolution torsion to the lower pipe crimping；The first end of the lower pipe crimping passes through first code and the bottom rail First end connection, the second end of the lower pipe crimping inserts inserted with the lower tail, and the lower tail inserted tail code and the bottom rail The second end connection,The fixing end of the lower curtain layer is connected with the lower pipe crimping, and the free end of the lower curtain layer is connected with the upper beam, The first drawstring is equipped with first fixed pulley, first drawstring is connected with the first end of the upper beam, and described second is fixed The second drawstring is equipped with pulley, second drawstring is connected with the second end of the upper beam.
- 8. curtain according to claim 7, it is characterised in that the first end of the upper beam is provided with the first sealed piece, institute The second end for stating upper beam is provided with the second sealed piece；The bottom of the bottom rail is connected with installation code.
- 9. a kind of classroom, it is characterised in that including the curtain any one of claim 1-8.
- 10. a kind of public place, it is characterised in that including the curtain any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721196856.6U CN207160944U (en) | 2017-09-18 | 2017-09-18 | A kind of curtain and its classroom and public place of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721196856.6U CN207160944U (en) | 2017-09-18 | 2017-09-18 | A kind of curtain and its classroom and public place of application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207160944U true CN207160944U (en) | 2018-03-30 |
Family
ID=61722260
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721196856.6U Withdrawn - After Issue CN207160944U (en) | 2017-09-18 | 2017-09-18 | A kind of curtain and its classroom and public place of application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207160944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461137A (en) * | 2017-09-18 | 2017-12-12 | 张静 | A kind of curtain and its classroom and public place of application |
-
2017
- 2017-09-18 CN CN201721196856.6U patent/CN207160944U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461137A (en) * | 2017-09-18 | 2017-12-12 | 张静 | A kind of curtain and its classroom and public place of application |
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