CN107193136A - The antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula - Google Patents
The antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula Download PDFInfo
- Publication number
- CN107193136A CN107193136A CN201710467116.XA CN201710467116A CN107193136A CN 107193136 A CN107193136 A CN 107193136A CN 201710467116 A CN201710467116 A CN 201710467116A CN 107193136 A CN107193136 A CN 107193136A
- Authority
- CN
- China
- Prior art keywords
- flow passage
- inner flow
- picture frame
- skiing goggle
- eyeglass
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C11/00—Non-optical adjuncts; Attachment thereof
- G02C11/08—Anti-misting means, e.g. ventilating, heating; Wipers
Abstract
The antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula, including picture frame, eyeglass, inner flow passage, air stream outlet, elastic band.Inner flow passage two ends are that outer gas stream entrance and outer gas stream are exported；Picture frame is divided into edge, picture frame lower edge and picture frame two ends on picture frame；Eyeglass is divided on the inside of eyeglass and on the outside of eyeglass；The space surrounded on the inside of picture frame and eyeglass is inside skiing goggle, remaining space is outside skiing goggle.Eyeglass is arranged on picture frame, and elastic band is arranged on picture frame two ends.Along inner flow passage is provided with picture frame, the outer gas stream entrance of inner flow passage will be connected together outside skiing goggle with inner flow passage, and the outer gas stream outlet of inner flow passage will be connected together inside inner flow passage and skiing goggle；Air stream outlet is provided with picture frame lower edge, air stream outlet is by skiing goggle inside together with skiing goggle ft connection.Skiing goggle is made using 3D printing technique.
Description
Technical field
The present invention relates to 3D printing and ski goggle field, more particularly to a kind of 3D printing wall attachment effect inner flow passage formula are anti-
Mist skiing goggle.
Background technology
With the improvement of living standards, to begin through the mode of motion healthy, abundant to strengthen by increasing people
The interest of life, skiing has become the motion that everybody enjoys a lot now.In skiing, in sunlight
Ultraviolet, cold wind can directly stimulate eyes；The accumulated snow splash is also fallen within eyes；Can be to face when colliding or falling down
And eyes are damaged；Need to wear skiing goggle when therefore skiing with protect eyes.
Skiing goggle is worn in skiing, and face's vapor to be formed of perspiring runs into and can condense to form mist after ice-cold minute surface
Gas, influences the sight of slider.Current antifog solution mainly has：Plate antifog using double-layer lens, on the inside of skiing goggle
Plated film, uses ventilative sponge.Closed space can be formed between double-layer lens, can be reduced to a certain extent in skiing goggle
Outer heat exchange so that the skiing goggle of inner side keeps certain warm degree, reduction is hazed；Antifog plated film can be by shape of perspiring
Into vapor formed fog before water vapor absorption is fallen；Ventilative sponge passes through vapor, and vapor is lost into skiing
Outside mirror.
Making antifog plated film needs, with some expensive equipment, also to need to carry out performance test to antifog plated film.Use mould
Picture frame is made, after production is completed, mould will go out of use, waste of materials.Double-layer lens, antifog plated film and ventilative sponge
The cost for making skiing goggle using undoubtedly adding, increases technological process, increases the production cycle.
The hardware composition of the antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula of the present invention is picture frame, eyeglass and bullet
Power.Along setting inner flow passage on picture frame, enter when inside skiing goggle what is produced on the inside of the minute surface by inner flow passage using air-flow
Wall-attached jet effect is come antifog.Skiing goggle is made using FDM (Fused Deposition Modeling) 3D printing technique, can be whole by skiing goggle
Body is printed, and more crucially inner flow passage also can accurately be printed according to original design data, required time
It can just be completed within 10 hours.Material used in making skiing goggle picture frame at present, can also be answered in FDM technology
With.It is antifog using the progress of wall-attached jet effect, without the use of antifog plated film, double-layer lens, ventilative sponge, reduce and make skiing goggle
Cost, shorten technological process, substantially increase the production cycle.Utilization rate for material can reach absolutely.
The content of the invention
The purpose of the present invention is to solve the problem of skiing goggle hazes using this new-type scheme of 3D printing, can be reduced
The cost of manufacture of skiing goggle, shortening fabrication cycle.
To achieve the above object, technical scheme is as follows：
A kind of antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula, including eyeglass (1), picture frame (2), elastic band (5), mirror
Along (11), skiing goggle outside (12), eyeglass outside (13) inside (8), picture frame lower edge (9), picture frame two ends (10), skiing goggle on frame
With (14) on the inside of eyeglass；The eyeglass (1) is arranged on the picture frame (2)；(14) are surrounded on the inside of the picture frame (2) and eyeglass
Space is that inside skiing goggle (11), remaining space is outside skiing goggle (12)；
Characterized in that, outside also including inner flow passage (3), air stream outlet (4), inner flow passage outer gas stream entrance (6), inner flow passage
Portion's air stream outlet (7)；The two ends of the inner flow passage (3) are respectively the inner flow passage outer gas stream entrance (6) and the inner flow passage
Outer gas stream exports (7)；The inner flow passage (3) set on the picture frame (2) is (11) and sliding inside described skiing goggle
(12) are connected together outside snow goggles；The inner flow passage outer gas stream entrance (6) is by (12) outside skiing goggle and the inner flow passage
(3) it is connected together, the inner flow passage outer gas stream outlet (7) connects (11) inside skiing goggle with the inner flow passage (3)
Together；(12) outside (11) inside skiing goggle and skiing goggle are connected together by the air stream outlet (4).
Further, the inner flow passage (3) is arranged on the picture frame along on (8), and the air stream outlet (4) is arranged on picture frame
In lower edge (9).
Further, the inner flow passage (3) is circular arc passage, and inner flow passage (3) is the inner flow passage (19) of circular arc by section
Combined with the inner flow passage (20) of rectangular cross-section, section is that inner flow passage (19) of circular arc its section is abdc, and section is
Inner flow passage (20) of rectangle its section is bfed；Inner flow passage outer gas stream entrance (6) height ac, gh is 1.7-2mm, up and down both sides
Length ag, ch of edge is 80-85mm；The section is the radian of the radian, i.e. camber line ab, cd of the inner flow passage (19) of circular arc,
For 75-90 degree；Width bd, ef of the inner flow passage (20) of the rectangular cross-section are 1.2-1.5mm, and height de, bf is 6.5-
7mm；The edge em of the inner flow passage outer gas stream outlet (7) is parallel with the top edge of (14) on the inside of the eyeglass, and distance is 1-
2mm。
Further, the width of the air stream outlet (4) is in 1-2mm, picture frame lower edge (9) described in insertion.
Further, the elastic band (5) is arranged on the picture frame two ends (10).
The eyeglass is installed on the picture frame, and the elastic band is installed on the picture frame two ends.
Further, along the inner flow passage is set on the picture frame, wherein outside the inner flow passage of described inner flow passage one end
Air flow inlet is by the inner flow passage together with the skiing goggle ft connection, and the inner flow passage outer gas stream outlet will be described interior
Runner inside the skiing goggle with being connected together.
Further, the air stream outlet is set in the picture frame lower edge, and the air stream outlet has connected the skiing
Inside mirror and outside the skiing goggle.
Further, because the inner flow passage, the air stream outlet size are small, using the processing mode of mould be difficult by
It is made, therefore the making of the skiing goggle will be printed by the way of 3D printing.
When outside air by the inner flow passage outer gas stream entrance enters inner flow passage, by the inner flow passage outer gas stream
Outlet enters behind the skiing goggle inside, and due to wall-attached jet effect, the air entered inside the skiing goggle can adhere to
Flowed on the inside of the eyeglass, so as to form one of gas curtain on the inside of the eyeglass, the hot and humid gas that face distributes run into gas curtain
Afterwards, flowing can be mixed with gas curtain, skiing goggle is flowed out by the air stream outlet, so as to effectively reach mirror antifogging
Effect.
By using ansys numerical simulation softwares to the antifog of the antifog skiing goggle of the 3D printing wall attachment effect inner flow passage formula
Effect carries out simulation calculating, as a result proves, it is feasible to be carried out using the inner flow passage antifog.
When the anti-fog effect to the antifog skiing goggle of the 3D printing wall attachment effect inner flow passage formula is simulated, air passes through
The inner flow passage is flowed into inside the skiing goggle, and skiing goggle is being flowed out by the air stream outlet, therefore simulated object is described
The region of inside inner flow passage, skiing goggle and this three part of air stream outlet composition, and the picture frame, eyeglass, elastic band are not involved in mould
Intend calculating.Therefore to inside the inner flow passage, skiing goggle, this three part of air stream outlet constitute region extract, after extraction
Regional cross section shape it is as shown in Figure 4.Speed cloud atlas after simulation is calculated is as shown in Figure 5.
In Fig. 4, the horizontal ultimate range of (15) and (18) is 30mm.Speed cloud atlas shows that the air-flow of flowing is described
(14) are with foring the thick gas curtains of 10mm, the flowing of gas on the inside of eyeglass on the interface (15) of (11) inside the skiing goggle
Speed is less than 0.2m/s.Therefore, the result that simulation is calculated shows that it is feasible to be carried out using the inner flow passage antifog.
For the making of skiing goggle, its entirety will be printed by the way of 3D printing.This grade of inner flow passage
Structure, can also accurately be made using 3D printing technique；Skiing goggle is made using 3D printing technique, can be saved into
This, shortens fabrication cycle, can just be printed within 10 hours, the utilization rate for material can reach percent
Hundred.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly, it will use below required in embodiment or description of the prior art
Accompanying drawing be briefly described.
Fig. 1 is 3D printing wall attachment effect inner flow passage formula skiing goggle schematic diagram；
Fig. 2 is inner flow passage schematic diagram；
Fig. 3 is 3D printing wall attachment effect inner flow passage formula skiing goggle profile；
Fig. 4 is inner flow passage, inside skiing goggle, the area schematic that this three part of air stream outlet is constituted.
Fig. 5 is the speed cloud atlas after simulation calculating.
Remarks one：
The interface of (14) and (11) inside the skiing goggle on the inside of eyeglass described in 15；
Picture frame lower edge (9) described in 16 and the interface of (11) inside the skiing goggle；
Interface described in 17 on picture frame along (8) and (11) inside the skiing goggle；
The interface of (11) and (12) outside the skiing goggle inside skiing goggle described in 18；
19 circular arc inner flow passages, section is abdc；
20 rectangle inner flow passages, section is dbfe.
Remarks two：Two edges ag, ch of the inner flow passage outer gas stream entrance (6) are exported with the inner flow passage outer gas stream
(7) two edges fn, em is the curve of bending.For display effect, the degree of crook of edge ag, ch, fn, em in Fig. 1
What is do not represented is particularly evident.
Embodiment
Below with reference to accompanying drawing, the present invention is described in detail.
With reference to shown in accompanying drawing 1-5, the antifog skiing goggle of 3D printing inner flow passage formula disclosed by the invention, including eyeglass 1, picture frame 2,
Inner flow passage 3, air stream outlet 4, elastic band 5, inner flow passage outer gas stream entrance 6, inner flow passage outer gas stream export 7,8 picture frames on along,
Along 12, eyeglass outside 13, eyeglass inner side 14 outside 9, picture frame two ends 10, skiing goggle inside 11, skiing goggle under picture frame.
2 points of picture frame be on picture frame along under 8, circumstances along the 9, part of picture frame two ends 10 3.Inner flow passage is set on picture frame along along 8
3, the two ends of inner flow passage 3 are respectively inner flow passage outer gas stream entrance 6, inner flow passage outer gas stream outlet 7；Set under picture frame along along 9
Put air stream outlet 4.
Eyeglass 1 is arranged on picture frame 2, and 1 point of eyeglass is 14, eyeglass outside, 13 two parts on the inside of eyeglass.In picture frame 2 and eyeglass
The space that side 14 is constituted is inside skiing goggle 11, and its complementary space is 12 outside skiing goggle.
Inner flow passage outer gas stream entrance 6 is connected together outside inner flow passage 3 and skiing goggle 12, and inner flow passage outer gas stream goes out
Mouth 7 is connected together inside inner flow passage 3 and skiing goggle 11.Air stream outlet 4 connects outside inside skiing goggle 11 and skiing goggle 12
Lead to together.
The two ends of elastic band 5 are arranged on picture frame two ends 10.
Because 14 have certain level distance on the inside of inner flow passage outer gas stream outlet 7 and eyeglass, therefore when outer gas stream passes through
Inner flow passage outer gas stream entrance 6 flows through inner flow passage 3, then behind inner flow passage outer gas stream outlet 7 into inside skiing goggle 11,
Outer gas stream, which can be attached on 14 on the inside of eyeglass, to be flowed, 14 on the inside of the eyeglass on produce one of gas curtain, so as to form wall-attached jet
Effect.The hot and humid gas that face distributes are run into after gas curtain, can mix flowing with gas curtain, are flowed out and are slided by air stream outlet 4
Snow goggles, so as to effectively reach the effect of mirror antifogging.
The present invention is simple in construction, overall to be made up of picture frame, eyeglass and elastic band.Only need to set along upper on picture frame
The inner flow passage of wall attachment effect can be produced, you can realize antifog purpose, therefore practicality of the present invention is extremely strong.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula, including eyeglass (1), picture frame (2), elastic band (5), picture frame
Upper edge (8), picture frame lower edge (9), picture frame two ends (10), (11) inside skiing goggle, (12) outside skiing goggle, on the outside of eyeglass (13) and
On the inside of eyeglass (14)；The eyeglass (1) is arranged on the picture frame (2)；The sky that (14) are surrounded on the inside of the picture frame (2) and eyeglass
Between for (11) inside skiing goggle, remaining space be outside skiing goggle (12)；
Characterized in that, also including inner flow passage (3), air stream outlet (4), inner flow passage outer gas stream entrance (6), inner flow passage outside gas
Flow export (7)；The two ends of the inner flow passage (3) are respectively outside the inner flow passage outer gas stream entrance (6) and the inner flow passage
Air stream outlet (7)；The inner flow passage (3) set on the picture frame (2), (11) and skiing goggle inside described skiing goggle
Outside (12) are connected together；The inner flow passage outer gas stream entrance (6) connects (12) outside skiing goggle and the inner flow passage (3)
Lead to together, (11) inside skiing goggle and the inner flow passage (3) are connected together by the inner flow passage outer gas stream outlet (7)；
(12) outside (11) inside skiing goggle and skiing goggle are connected together by the air stream outlet (4).
2. the antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula according to claim 1, it is characterised in that the interior stream
Road (3) is arranged on the picture frame along on (8), and the air stream outlet (4) is arranged in picture frame lower edge (9).
3. the antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula according to claim 1, it is characterised in that the interior stream
Road (3) is circular arc passage, and inner flow passage (3) is the inner flow passage (19) of circular arc and the inner flow passage (20) of rectangular cross-section by section
Combine, section is that inner flow passage (19) of circular arc its section is abdc, and inner flow passage (20) of rectangular cross-section its section is
bfed；Inner flow passage outer gas stream entrance (6) height ac, gh is 1.7-2mm, and length ag, ch of two edges is 80-85mm up and down；
The section is the radian of the radian, i.e. camber line ab, cd of the inner flow passage (19) of circular arc, is 75-90 degree；The rectangular cross-section
Inner flow passage (20) width bd, ef be 1.2-1.5mm, height de, bf be 6.5-7mm；The inner flow passage outer gas stream outlet
(7) edge em is parallel with the top edge of (14) on the inside of the eyeglass, and distance is 1-2mm.
4. the antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula according to claim 1, it is characterised in that the air-flow
The width of (4) is exported in 1-2mm, picture frame lower edge (9) described in insertion.
5. the antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula according to claim 1, it is characterised in that the elastic force
Band (5) is arranged on the picture frame two ends (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467116.XA CN107193136A (en) | 2017-06-20 | 2017-06-20 | The antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467116.XA CN107193136A (en) | 2017-06-20 | 2017-06-20 | The antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107193136A true CN107193136A (en) | 2017-09-22 |
Family
ID=59878192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710467116.XA Pending CN107193136A (en) | 2017-06-20 | 2017-06-20 | The antifog skiing goggle of 3D printing wall attachment effect inner flow passage formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107193136A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111452350A (en) * | 2020-06-04 | 2020-07-28 | 来庆国 | Multifunctional medical goggle surface contour fitting design and 3D printing method |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3517393A (en) * | 1968-04-10 | 1970-06-30 | Applic Matieres Plastiques | Ski goggles |
| CN1139762A (en) * | 1995-03-16 | 1997-01-08 | 尤万科安全设备有限公司 | Snap together protective goggle construction with toric lens |
| US5815235A (en) * | 1997-07-09 | 1998-09-29 | John L. Runckel Trust | Ski goggles with pivotal frame members for interchanging lenses |
| US6138285A (en) * | 1999-03-05 | 2000-10-31 | Scott Usa, Inc. | Goggle for sports and adverse environments |
| CN2639922Y (en) * | 2003-06-13 | 2004-09-08 | 集陞实业有限公司 | Skiing sunglasses structure |
| CN1826549A (en) * | 2003-06-25 | 2006-08-30 | 眼睛医疗产品公司 | Light-blocking air vents for eyewear |
| TWM316402U (en) * | 2007-01-31 | 2007-08-01 | Liang-Tsai Huang | Improved structure for safe glasses |
| US20080047050A1 (en) * | 2006-08-04 | 2008-02-28 | I.E. Manufacturing Llc | Fog-resistant goggles |
| EP2060246A1 (en) * | 2007-11-13 | 2009-05-20 | Alpina International Sport + Optik-Vertriebs-GmbH | Ski goggles |
| US20110296596A1 (en) * | 2010-06-04 | 2011-12-08 | Lin-Yun Chen | Skiing goggle frame with ventilation structure |
| CN204807831U (en) * | 2015-07-20 | 2015-11-25 | 黑龙江科技大学 | Antifog skiing mirror that conveniently carries |
| CN205067884U (en) * | 2015-11-02 | 2016-03-02 | 庞培利 | Safety spectacles that rides who has air current dispersing fog function |
| US20160259184A1 (en) * | 2015-03-04 | 2016-09-08 | Brent Sheldon | Eyewear frame having vents |
| US20170090218A1 (en) * | 2015-09-25 | 2017-03-30 | Paul D. Bella | Eyeglasses and eyeglass attachment for directing filtered air over the eyes of a wearer |
-
2017
- 2017-06-20 CN CN201710467116.XA patent/CN107193136A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3517393A (en) * | 1968-04-10 | 1970-06-30 | Applic Matieres Plastiques | Ski goggles |
| CN1139762A (en) * | 1995-03-16 | 1997-01-08 | 尤万科安全设备有限公司 | Snap together protective goggle construction with toric lens |
| US5815235A (en) * | 1997-07-09 | 1998-09-29 | John L. Runckel Trust | Ski goggles with pivotal frame members for interchanging lenses |
| US6138285A (en) * | 1999-03-05 | 2000-10-31 | Scott Usa, Inc. | Goggle for sports and adverse environments |
| CN2639922Y (en) * | 2003-06-13 | 2004-09-08 | 集陞实业有限公司 | Skiing sunglasses structure |
| CN1826549A (en) * | 2003-06-25 | 2006-08-30 | 眼睛医疗产品公司 | Light-blocking air vents for eyewear |
| US20080047050A1 (en) * | 2006-08-04 | 2008-02-28 | I.E. Manufacturing Llc | Fog-resistant goggles |
| TWM316402U (en) * | 2007-01-31 | 2007-08-01 | Liang-Tsai Huang | Improved structure for safe glasses |
| EP2060246A1 (en) * | 2007-11-13 | 2009-05-20 | Alpina International Sport + Optik-Vertriebs-GmbH | Ski goggles |
| US20110296596A1 (en) * | 2010-06-04 | 2011-12-08 | Lin-Yun Chen | Skiing goggle frame with ventilation structure |
| US20160259184A1 (en) * | 2015-03-04 | 2016-09-08 | Brent Sheldon | Eyewear frame having vents |
| CN204807831U (en) * | 2015-07-20 | 2015-11-25 | 黑龙江科技大学 | Antifog skiing mirror that conveniently carries |
| US20170090218A1 (en) * | 2015-09-25 | 2017-03-30 | Paul D. Bella | Eyeglasses and eyeglass attachment for directing filtered air over the eyes of a wearer |
| CN205067884U (en) * | 2015-11-02 | 2016-03-02 | 庞培利 | Safety spectacles that rides who has air current dispersing fog function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111452350A (en) * | 2020-06-04 | 2020-07-28 | 来庆国 | Multifunctional medical goggle surface contour fitting design and 3D printing method |
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