CN207718139U - A kind of perforation thread drawing mechanism for projection screen - Google Patents
A kind of perforation thread drawing mechanism for projection screen Download PDFInfo
- Publication number
- CN207718139U CN207718139U CN201721811751.7U CN201721811751U CN207718139U CN 207718139 U CN207718139 U CN 207718139U CN 201721811751 U CN201721811751 U CN 201721811751U CN 207718139 U CN207718139 U CN 207718139U
- Authority
- CN
- China
- Prior art keywords
- curtain
- tube
- ear
- hole
- projection screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The utility model discloses a kind of perforation thread drawing mechanisms for projection screen, including tube, bottom tube and the curtain between tube and bottom tube, the both sides of the curtain are equipped with and are connected to tube and the first drawstring of bottom tube, the both sides of the curtain are from top to bottom equipped with a row through-hole, and first drawstring passes through several through-holes one by one.Drawing ear is set instead of in curtain side by the way that through-hole is arranged in curtain side, production efficiency is then substantially increased compared to the molding complicated procedures of forming of ear, drilling process is drawn；Meanwhile there is no the reflexed process drawn in ear molding is similar to, reducing the waste of curtain material.
Description
Technical field
The utility model is related to projection curtain device technical field, more particularly to a kind of perforation drawing machines for projection screen
Structure.
Background technology
The bracing wire scheme of bracing wire curtain used in present curtain industry is to be cut out a row straight line or arc line type on curtain both sides
Drawing ear, this draw ear to cut out forming after again end section reflexed, then bonded with welding equipment or glue, make this that ear be drawn to exist
End forms the gap that an energy passes through drawstring, then drawstring is passed through and draws ear, and drawstring is tied up on the tube and bottom tube of curtain,
To achieve the purpose that tighten curtain.
In the prior art, due to drawing the molding procedure of ear more complicated, cause processing efficiency low；Meanwhile ear being drawn to exist
The process of one end reflexed increases the waste of curtain material.
Utility model content
It is simple, saving material for projection screen that the technical problem to be solved by the utility model is to provide a kind of processing
Perforation thread drawing mechanism.
Used technical solution to solve above-mentioned technical problem：A kind of perforation thread drawing mechanism for projection screen, including
Tube, bottom tube and the curtain between tube and bottom tube, the both sides of the curtain, which are equipped with, is connected to tube and bottom tube
The both sides of first drawstring, the curtain are from top to bottom equipped with a row through-hole, and first drawstring passes through several described one by one
Through-hole.
Further, the through-hole is spaced apart in groups.
Further, the quantity of every group of through-hole is 2.
Further, it is evenly equipped with drawing ear along the side of the curtain, being equipped with 2 on each drawing ear is arranged in a linear
Through-hole.
Further, the side of the curtain is in arc line shaped, and the through-hole is arranged in camber line.
Further, the second drawstring is equipped between the tube and bottom tube.
Advantageous effect：In the utility model, drawing ear is set instead of in curtain side by the way that through-hole is arranged in curtain side,
Production efficiency is then substantially increased compared to the molding complicated procedures of forming of ear, drilling process is drawn；Meanwhile there is no be similar to draw ear at
Reflexed process in type, reduces the waste of curtain material.
Description of the drawings
The utility model is described further with reference to the accompanying drawings and examples；
Fig. 1 is the schematic diagram for the thread drawing mechanism that the utility model embodiment curtain side is equipped with through-hole；
Fig. 2 is the schematic diagram that the utility model embodiment curtain side is equipped with the thread drawing mechanism for drawing ear；
Fig. 3 is the schematic diagram for the thread drawing mechanism that the utility model embodiment curtain side is arc line shaped；
Fig. 4 is the schematic diagram for the thread drawing mechanism that the utility model embodiment curtain side increases by the second drawstring.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.
Referring to figs. 1 to Fig. 4, a kind of perforation thread drawing mechanism for projection screen of the utility model embodiment, including tube 1,
Bottom tube 2 and the curtain 3 between tube 1 and bottom tube 2, the both sides of curtain 3, which are equipped with, is connected to the of tube 1 and bottom tube 2
The both sides of one drawstring 4, curtain 3 are from top to bottom equipped with a row through-hole 5, and the first drawstring 4 passes through several through-holes 5 one by one, realizes
3 both sides of curtain stretch, and the planarization of curtain 3 has been effectively ensured.In the program, replaced by the way that through-hole 5 is arranged in 3 side of curtain
It is arranged in 3 side of curtain and draws ear 6, production efficiency is then substantially increased compared to ear molding complicated procedures of forming, drilling process is drawn；
Meanwhile there is no the reflexed process drawn in ear molding is similar to, reducing the waste of material.It is higher in mass production
Production efficiency and less waste of material can bring the profit of bigger to enterprise.Also, the shape of the through-hole 5 can be circle
Shape, ellipse, rectangle and polygon etc.；First drawstring 4 can be a filament, can also be the filament mostly with winding.
Preferably, through-hole 5 is spaced apart in groups, specifically, the quantity of every group of through-hole 5 is 2.Every group of two through-holes 5
It is adjacent closer so that the first drawstring 4 passes through the adjacent domain of every group of through-hole 5 to have larger rigidity, then further along curtain 3
Side formed it is multiple have larger rigid region, integrally improve the rigidity at 3 edge of curtain, advantageously ensure that 3 side of curtain
The planarization of edge.
Draw ear 6 preferably, being evenly equipped with along the side of curtain 3, it is each draw be equipped on ear 62 be arranged in a linear it is logical
Hole 5.It can also be similar to that the prior art, ear 6 is drawn in setting in the side of curtain 3, but the drawing ear 6 in the technical program does not need
Carry out reflexed process, it is only necessary to 2 through-holes 5 are processed on drawing ear 6.Compared to the prior art, also it is a simplified processing work
Sequence and the material for having saved curtain 3.
Preferably, the side of curtain 3 is in arc line shaped, through-hole 5 is arranged in camber line.For the curtain 3 that side is arc line shaped
It is similarly suitable, it is only necessary to the through-hole 5 being distributed in camber line along one row of camber line processing of 3 side of curtain.In the first drawstring 4
Under tensioning effect, the arc line shaped effect of 3 side of curtain can effectively ensure that.
Preferably, being equipped with the second drawstring 7 between tube 1 and bottom tube 2.For the curtain 3 that side is arc line shaped, in curtain
3 both sides increase by the second drawstring 7 between tube 1 and bottom tube 2, and vertically lifting avoids the second drawstring 7 positioned at the bottom tube 2 of bottom
Curtain 3 deforms under the effect of pullling of bottom tube 2 its own gravity, and then influences drop shadow effect.
Certainly, the utility model creation is not limited to the above embodiment, and those skilled in the art are not disobeying
Equivalent variations or replacement can be also made under the premise of back of the body the spirit of the present invention, these equivalent deformations or replacement are all contained in this
Apply in claim limited range.
Claims (6)
1. a kind of perforation thread drawing mechanism for projection screen, including tube, bottom tube and the curtain between tube and bottom tube,
The both sides of the curtain are equipped with and are connected to tube and the first drawstring of bottom tube, it is characterised in that：The both sides of the curtain by
A row through-hole is equipped under, first drawstring passes through several through-holes one by one.
2. the perforation thread drawing mechanism according to claim 1 for projection screen, it is characterised in that：The through-hole is spaced in groups
Distribution.
3. the perforation thread drawing mechanism according to claim 2 for projection screen, it is characterised in that：The quantity of every group of through-hole is
2.
4. the perforation thread drawing mechanism according to claim 1 for projection screen, it is characterised in that：Along the side of the curtain
It is evenly equipped with drawing ear, 2 through-holes being arranged in a linear are equipped on each drawing ear.
5. the perforation thread drawing mechanism according to claim 1 for projection screen, it is characterised in that：The side of the curtain is in
Arc line shaped, the through-hole are arranged in camber line.
6. the perforation thread drawing mechanism according to claim 5 for projection screen, it is characterised in that：The tube and bottom tube it
Between be equipped with the second drawstring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721811751.7U CN207718139U (en) | 2017-12-20 | 2017-12-20 | A kind of perforation thread drawing mechanism for projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721811751.7U CN207718139U (en) | 2017-12-20 | 2017-12-20 | A kind of perforation thread drawing mechanism for projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207718139U true CN207718139U (en) | 2018-08-10 |
Family
ID=63057230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721811751.7U Expired - Fee Related CN207718139U (en) | 2017-12-20 | 2017-12-20 | A kind of perforation thread drawing mechanism for projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207718139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311656A (en) * | 2020-07-06 | 2021-08-27 | 深圳市慧创立科技有限公司 | Screen with structure of borduring |
-
2017
- 2017-12-20 CN CN201721811751.7U patent/CN207718139U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311656A (en) * | 2020-07-06 | 2021-08-27 | 深圳市慧创立科技有限公司 | Screen with structure of borduring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180810 Termination date: 20191220 |