CN208131526U - A kind of dust-extraction unit of projection screen - Google Patents
A kind of dust-extraction unit of projection screen Download PDFInfo
- Publication number
- CN208131526U CN208131526U CN201820220046.8U CN201820220046U CN208131526U CN 208131526 U CN208131526 U CN 208131526U CN 201820220046 U CN201820220046 U CN 201820220046U CN 208131526 U CN208131526 U CN 208131526U
- Authority
- CN
- China
- Prior art keywords
- projection screen
- dust
- box
- hollow stud
- round cross
- 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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Abstract
The utility model discloses a kind of dust-extraction units of projection screen, including screw mechanism, dust box, projection screen Scroll, decorative shell and projection screen, screw mechanism includes hollow stud, stroke nut and lead screw ontology, the lead screw ontology is up and down in the inside of hollow stud, and stroke nut is threaded on the circumference of lead screw ontology, one end of the projection screen Scroll is fixed on the upper end of hollow stud, and the other end of projection screen Scroll is fixed on the upper end of decorative shell, the utility model is provided with can be directly to the hairbrush that curtain is dusted when curtain winds and unreels, hairbrush, which rises or declines as power using curtain, voluntarily to be rotated, extraneous dynamical system is not needed, it ensure that the price of this dust-extraction unit is lower, it is suitable for promoting；Provided with the dust box that can accept dust.
Description
Technical field
The utility model relates to projection screen technical field, the dust-extraction unit of specifically a kind of projection screen.
Background technique
Projection screen is used general with projector, and projection screen is called projection screen, is generally divided into commercial curtain, domestic screens
It is many with the type of engineering curtain, projection screen, be divided into it is high, neutralize it is low-grade, can depending on occasion situation, projection screen according to
The difference on way also divides a variety of specifications, is generally divided into household, school and KTV.Projection screen makes at present
Used time becomes easily infected by many dusts, if cleaning is easy to influence the drop shadow effect of projection screen not in time.
Utility model content
The purpose of this utility model is to provide a kind of dust-extraction units of projection screen, to solve in the prior art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions：A kind of dust-extraction unit of projection screen, including
Screw mechanism, dust box, projection screen Scroll, decorative shell and projection screen, screw mechanism include hollow stud, stroke spiral shell
Female and lead screw ontology, the lead screw ontology are threadedly coupled in the inside of hollow stud, and on the circumference of lead screw ontology up and down
There is stroke nut, one end of the projection screen Scroll is fixed on the upper end of hollow stud, and projection screen Scroll is another
One end is fixed on the upper end of decorative shell, and the projection screen winding is on the circumference of projection screen Scroll, and projection screen
Front surface the position of close over is provided with brush roll, the inner transverse of the brush roll is inserted with hairbrush roll shaft, the hair
One end of brushroll axle is fixed on stroke nut, and the inside of the other end insertion decorative shell of hairbrush roll shaft.
Preferably, the dust box includes upper box and lower box, and the top of brush roll, and the two of upper box are arranged in the upper box
End is provided with box half-round cross hole, and the lower section of brush roll is arranged in the lower box, and the both ends of lower box are provided with lower box half
Round tube hole is connected by a snap between the upper box and lower box, the ipsilateral upper box half-round cross hole and lower box half-round cross hole it
Between be connected by a snap, and ipsilateral upper box half-round cross hole and lower box half-round cross hole form a circular hole, and upper box half-round cross hole
It is connect by way of grafting between the circular hole and hairbrush roll shaft of lower box half-round cross hole composition.
Preferably, the lower end of the hollow stud is provided with the handwheel mutually fixed with lead screw ontology, the lead screw ontology
It is rotatablely connected between both ends and hollow stud by bearing.
Preferably, the decorative shell is internally provided with slideway compatible with hairbrush roll shaft, and decorative shell and empty
The appearance of chamber column is identical.
Preferably, the diameter of the brush roll is greater than the diameter of hairbrush roll shaft.
Compared with prior art, the utility model has the beneficial effects that：The utility model be provided with curtain winding and
Can be directly to the hairbrush that curtain is dusted when unreeling, hairbrush rises or declines as power using curtain and voluntarily turns
It is dynamic, extraneous dynamical system is not needed, ensure that the price of this dust-extraction unit is lower, is suitable for promoting；Provided with ash can be accepted
Dust box can be dropped to lower position by screw mechanism when dust box is filled by the dust box of dirt, open dust box into
Row cleaning, ensure that dust will not be in dust box building up inside.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the area the B enlarged drawing of the utility model.
Fig. 3 is the perspective view of the utility model dust box.
Fig. 4 is the cross-sectional view of the utility model A-A.
In figure：1- screw mechanism, 11- hollow stud, 12- stroke nut, 13- lead screw ontology, 2- hairbrush roll shaft, 3- dust
Box half-round cross hole, 4- projection screen Scroll, 5- are decorated under box, 321- under the upper box half-round cross hole of the upper box of box, 31-, 311-, 32-
Shell, 6- projection screen, 7- brush roll, 8- handwheel.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~4, in the utility model embodiment, a kind of dust-extraction unit of projection screen, including screw mechanism 1,
Dust box 3, projection screen Scroll 4, decorative shell 5 and projection screen 6, screw mechanism 1 are used for the fortune up and down of hairbrush roll shaft 2
Dynamic, dust box 3 is for accepting dust, and projection screen Scroll 4 is for winding projection screen 6, and 5 one side of decorative shell is for beauty
It sees, on the other hand the slideway as hairbrush roll shaft 2, for projection screen 6 for projecting, screw mechanism 1 includes hollow stud 11, stroke
Nut 12 and lead screw ontology 13, the rotation of lead screw ontology 13 drive stroke nut 12 to move up and down, and lead screw ontology 13 exists up and down
The inside of hollow stud 11, and stroke nut 12 is threaded on the circumference of lead screw ontology 13, the one of projection screen Scroll 4
End is fixed on the upper end of hollow stud 11, and the other end of projection screen Scroll 4 is fixed on the upper end of decorative shell 5, projection
Curtain 6 is wound on the circumference of projection screen Scroll 4, and hairiness is arranged by the position of close in the front surface of projection screen 6
Brush roll 7, brush roll 7 is for cleaning projection screen 6, and inserted with hairbrush roll shaft 2, hairbrush roll shaft 2 is used for the inner transverse of brush roll 7
Brush roll 7 is installed, one end of hairbrush roll shaft 2 is fixed on stroke nut 12, and the other end of hairbrush roll shaft 2 is inserted into decorative shell
5 inside.
Dust box 3 includes upper box 31 and lower box 32, and the top of brush roll 7 is arranged in upper box 31, and the both ends of upper box 31 are equal
It is provided with box half-round cross hole 311, the lower section of brush roll 7 is arranged in lower box 32, and the both ends of lower box 32 are provided with lower box half
Round tube hole 321 is connected by a snap between upper box 31 and lower box 32, ipsilateral upper box half-round cross hole 311 and lower box half-round cross hole
It is connected by a snap between 321, and ipsilateral upper box half-round cross hole 311 and lower box half-round cross hole 321 one circular hole of composition, and on
It is connected, is beaten by way of grafting between box half-round cross hole 311 and the circular hole and hairbrush roll shaft 2 of lower box half-round cross hole 321 composition
The buckle between box 31 and lower box 32 is opened, upper box 31 is detachable structure with lower box 32.
The lower end of hollow stud 11 is provided with the handwheel 8 fixed with 13 phase of lead screw ontology, the both ends of lead screw ontology 13 and sky
It is rotatablely connected between chamber column 11 by bearing, rotation handwheel 8 is for driving lead screw ontology 13 to rotate.
Decorative shell 5 is internally provided with slideway compatible with hairbrush roll shaft 2, and decorative shell 5 and hollow stud 11
Appearance it is identical.
The diameter of brush roll 7 is greater than the diameter of hairbrush roll shaft 2.
The working principle of the utility model is：The throwing when projection screen Scroll 4 winds projection screen 6 and either unreels
The front surface of shadow curtain 6 can all pass through brush roll 7, and when projection screen 6 is by brush roll 7, brush roll 7 turns on hairbrush roll shaft 2
Dynamic, to be dusted to projection screen 6, dust can fall into the inside of lower box 32, when turning on or off projection screen 6 every time,
Brush roll 7 can give 6 dedusting of projection screen, after dust box 3 is filled, drive lead screw ontology 2 by rotation handwheel 8
Rotation, to drive stroke nut 12 to move down, to drive hairbrush roll shaft 2 to move down, thus by brush roll 7 and dust
Box 3 is fallen, and people is opened upper box 31 and lower box 32, by upper box 31 under by opening the buckle between upper box 31 and lower box 32
Dust inside box 32 is cleaned out.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (5)
1. a kind of dust-extraction unit of projection screen, including screw mechanism (1), dust box (3), projection screen Scroll (4), decoration
Shell (5) and projection screen (6), it is characterised in that:Screw mechanism (1) includes hollow stud (11), stroke nut (12) and silk
Thick stick ontology (13), the lead screw ontology (13) is up and down in the inside of hollow stud (11), and the circumference of lead screw ontology (13)
On be threaded with stroke nut (12), one end of the projection screen Scroll (4) is fixed on the upper end of hollow stud (11),
And the other end of projection screen Scroll (4) is fixed on the upper end of decorative shell (5), projection screen (6) winding is projecting
On the circumference of curtain Scroll (4), and the front surface of projection screen (6) is provided with brush roll (7) by the position of close over, described
The inner transverse of brush roll (7) is fixed on stroke nut (12) inserted with hairbrush roll shaft (2), one end of the hairbrush roll shaft (2)
On, and the inside of other end insertion decorative shell (5) of hairbrush roll shaft (2).
2. a kind of dust-extraction unit of projection screen according to claim 1, it is characterised in that：The dust box (3) includes
Upper box (31) and lower box (32), the upper box (31) is arranged in the top of brush roll (7), and the both ends of upper box (31) are provided with
Upper box half-round cross hole (311), the lower box (32) is arranged in the lower section of brush roll (7), and the both ends of lower box (32) are provided with
Lower box half-round cross hole (321) is connected by a snap between the upper box (31) and lower box (32), and the ipsilateral upper box semicircle is logical
It is connected by a snap between hole (311) and lower box half-round cross hole (321), and ipsilateral upper box half-round cross hole (311) and lower box half
Round tube hole (321) forms a circular hole, and the circular hole and hair of upper box half-round cross hole (311) and lower box half-round cross hole (321) composition
Brushroll axle is connected by way of grafting between (2).
3. a kind of dust-extraction unit of projection screen according to claim 1, it is characterised in that：The hollow stud (11)
Lower end is provided with the handwheel (8) mutually fixed with lead screw ontology (13), the both ends and hollow stud (11) of the lead screw ontology (13)
Between pass through bearing be rotatablely connected.
4. a kind of dust-extraction unit of projection screen according to claim 1, it is characterised in that：The decorative shell (5)
It is internally provided with the compatible slideway with hairbrush roll shaft (2), and decorative shell (5) is identical as the appearance of hollow stud (11).
5. a kind of dust-extraction unit of projection screen according to claim 1, it is characterised in that：The brush roll (7) it is straight
Diameter is greater than the diameter of hairbrush roll shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820220046.8U CN208131526U (en) | 2018-02-08 | 2018-02-08 | A kind of dust-extraction unit of projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820220046.8U CN208131526U (en) | 2018-02-08 | 2018-02-08 | A kind of dust-extraction unit of projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208131526U true CN208131526U (en) | 2018-11-23 |
Family
ID=64286643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820220046.8U Expired - Fee Related CN208131526U (en) | 2018-02-08 | 2018-02-08 | A kind of dust-extraction unit of projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208131526U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327711A (en) * | 2019-06-06 | 2019-10-15 | 安徽工程大学 | A kind of multimedia teaching synchronized dust removal dehumidifying projection screen |
| CN112634683A (en) * | 2021-01-19 | 2021-04-09 | 河南工业贸易职业学院 | Portable finance and tax big data information explanation is with projection public address set |
| CN113477577A (en) * | 2021-07-08 | 2021-10-08 | 鲁迅美术学院 | Multimedia English teaching equipment |
-
2018
- 2018-02-08 CN CN201820220046.8U patent/CN208131526U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327711A (en) * | 2019-06-06 | 2019-10-15 | 安徽工程大学 | A kind of multimedia teaching synchronized dust removal dehumidifying projection screen |
| CN112634683A (en) * | 2021-01-19 | 2021-04-09 | 河南工业贸易职业学院 | Portable finance and tax big data information explanation is with projection public address set |
| CN113477577A (en) * | 2021-07-08 | 2021-10-08 | 鲁迅美术学院 | Multimedia English teaching equipment |
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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: 20181123 Termination date: 20220208 |