CN103976555A - Household type myopia prevention learning desk - Google Patents
Household type myopia prevention learning desk Download PDFInfo
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- CN103976555A CN103976555A CN201410193165.5A CN201410193165A CN103976555A CN 103976555 A CN103976555 A CN 103976555A CN 201410193165 A CN201410193165 A CN 201410193165A CN 103976555 A CN103976555 A CN 103976555A
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- desktop
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- myopia prevention
- adjustable
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Abstract
The invention discloses a household type myopia prevention learning desk which comprises a desktop bracket and lifting leg components, wherein the lifting leg components comprise leg bases; two parallel sleeves are fixedly arranged on each leg base; the upper ends of the two sleeves are fixedly connected with a connection plate; the two sleeves are internally matched with guide shafts in a sliding manner respectively; the upper ends of the two guide shafts are fixedly mounted on a support; a supporting shaft is mounted on the middle part of the support; movable pulleys are arranged at the lower ends of the supporting shafts. The overall height of a desktop is convenient to adjust; due to the design of the adjustable desktop, an angle can be freely adjusted, so that the learning fatigue is alleviated, the learning efficiency is improved, and one person can finish all operations.
Description
Technical field
The present invention relates to chair and desk for pupils field, specifically belong to domestic type myopia prevention desk for study.
Background technology
Along with the quickening of social modernization's process, the bathomorphic incidence of disease constantly increases in recent years, and myopia has become one of illness in eye that within the scope of the world today, the incidence of disease is the highest.At present, the number of wearing glasses in the whole nation has exceeded 300,000,000, China the A nearsighted person Yi Zhan world 33%, than world average level height 10%.Adolescents in China rate of myopia rank the second in the world.Learn on June 4th, 2012, according to a nearest investigation demonstration of State Statistics Bureau, the situation of Chinese student's low vision is troubling at present.The ratio of primary school's myopia is 34%--61%, and junior middle school is 68%, and emphasis senior middle school is 90% left and right, and student enrollment's eyesight eligible still less.
Myopia and hunchback are the ubiquitous problems of students in middle and primary schools, and body development and the health of youngsters and children in serious harm.Scientific research result shows recently: causing myopia and bow-backed main cause is owing to having adopted bad sitting posture to cause.Sitting correction set is pre-myopia prevention and bow-backed key point.But how allowing children in long learning process, consciously keep consistently good sitting position, is but a global problem, does not still find so far really effectively solution.
The defect of conventional chair is: a lot of father and mother think that children's incorrect sitting-pose is because tired institute causes, but it is because the unreasonable structure of chair causes in fact that few people know bad sitting posture, the structure of conventional chair is " h " type (facing perpendicular type directly) substantially, while taking a seat, the weight of human body mainly contains buttocks and thigh root bears, in the time of study, work, angle between upper body and thigh is generally less than 90 degree, upper body becomes " c " type, this sitting posture can make people's spinal curvature naturally, shank, waist, hall portion burden, sitting is had a pain in the back.For the children of long-time seat study every day, be to can't bear to stand really, unconsciously just bend over to have lain prone on desktop, if things go on like this, child's back just easily forms " c " type.Can say, this structural critical defect of conventional chair is to cause child myopia and bow-backed real arch-criminal.
Summary of the invention
The object of this invention is to provide a kind of domestic type myopia prevention desk for study, desktop whole height is easy to adjust, the adjustable desktop of design, and angle can free adjustment, has reduced the fatigue strength of study, has improved learning efficiency, and a people can complete all operations.
Technical scheme of the present invention is as follows:
Domestic type myopia prevention desk for study, include desktop support, lifting leg assembly, described lifting leg assembly includes leg base, on leg base, be fixed with two sleeve pipes that are parallel to each other, two sleeve pipe upper ends are fixedly connected with connecting plate, in two sleeve pipes, be sliding combined with respectively the axis of guide, two axis of guide upper ends are fixedly installed on bearing, bearing middle part is provided with back shaft, the lower end of back shaft is provided with movable pulley, the leg base in back shaft left side is provided with extension spring, extension spring top is provided with the fixed pulley being fixed on connecting plate, there is pull rope one end to be fixed on the connecting plate on back shaft right side, the other end is walked around movable pulley lower end, behind fixed pulley upper end, be connected in the upper end of extension spring, described bearing is fixed on desktop support bottom surface, described desktop mid-stent is hinged with adjustable desktop, on desktop support, rotate and be provided with rotating shaft, on rotating shaft, be provided with by movable sprocket, angular adjustment motor is installed on desktop support, angular adjustment motor is connected with the drive sprocket being connected with passive chain gear transmission, two rocking arms are installed on rotating shaft, rocking arm front end is hinged with strut, strut upper end is articulated with adjustable desktop bottom surface, and both sides, adjustable desktop bottom surface and front are equipped with respectively small table surface.
Described front, adjustable desktop both sides is provided with object placing platform, and the dead ahead of adjustable desktop is provided with the book reading plate of rotary setting.
Described axis of guide fit on has the cutting ferrule being fixed on connecting plate, has multiple bar-shaped troughs on cutting ferrule, and card sleeve clamp is buckled with clip, and clip is articulated with on connecting plate.
Desktop support of the present invention is fixedly connected with the bearing of lifting leg assembly, desktop support is upwards mentioned the drive axis of guide, back shaft moves up simultaneously, while rising to applicable height, by lower catch hoop handle, clip and cutting ferrule are locked, in the time that needs desktop regulates height, clip handle is unclamped; Adjustable desktop below is provided with angular adjustment motor, angular adjustment electric motor starting drives rotating shaft to rotate by chain transmission, rotating shaft rotates and drives rocking arm, strut action, strut upper end drives desktop support to tilt up or down, until angle is when suitable, closing angle regulates electric power switch key, completes tabletop angles adjusting work, position adjustments is convenient, and a people can complete.
Desktop whole height of the present invention is easy to adjust, the adjustable desktop of design, and angle can free adjustment, has reduced the fatigue strength of study, has improved learning efficiency, and a people can complete all operations.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is desktop supporting structure schematic diagram of the present invention.
Fig. 3 is lifting leg modular construction schematic diagram of the present invention.
Detailed description of the invention
Referring to accompanying drawing, domestic type myopia prevention desk for study, include desktop support 1, lifting leg assembly 2, lifting leg assembly 2 includes leg base 3, on leg base 3, be fixed with two sleeve pipes that are parallel to each other 15, two sleeve pipe 15 upper ends are fixedly connected with connecting plate 16, two interior axis of guides 4 that are sliding combined with respectively of sleeve pipe 15, two axis of guide 4 upper ends are fixedly installed on bearing 17, bearing 17 middle parts are provided with back shaft 5, the lower end of back shaft 5 is provided with movable pulley 18, the leg base 3 in back shaft 5 left sides is provided with extension spring 19, extension spring 19 tops are provided with the fixed pulley being fixed on connecting plate 16, there are pull rope 20 one end to be fixed on the connecting plate 16 on back shaft 5 right sides, the other end is walked around movable pulley lower end, behind fixed pulley upper end, be connected in the upper end of extension spring 19, described bearing is fixed on desktop support 1 bottom surface, and the axis of guide 4 fit ons have the cutting ferrule 22 being fixed on connecting plate 16, has multiple bar-shaped troughs on cutting ferrule 22, and cutting ferrule 22 buckles have clip 21, and clip 21 is articulated with on connecting plate 16.Desktop support 1 middle part is hinged with adjustable desktop 6, on desktop support 1, rotate and be provided with rotating shaft 10, on rotating shaft 10, be provided with by movable sprocket 11, angular adjustment motor 12 is installed on desktop support 1, angular adjustment motor 12 is connected with and the drive sprocket being in transmission connection by movable sprocket 11, and two rocking arms 13 are installed on rotating shaft 10, and rocking arm 13 front ends are hinged with strut 14, strut 14 upper ends are articulated with adjustable desktop 6 bottom surfaces, and adjustable desktop 6 both sides, bottom surface and front are equipped with respectively small table surface 7.Adjustable desktop 6 fronts, both sides are provided with object placing platform 8, and the dead ahead of adjustable desktop 6 is provided with the book reading plate 9 of rotary setting.
Claims (3)
1. domestic type myopia prevention desk for study, include desktop support, lifting leg assembly, it is characterized in that, described lifting leg assembly includes leg base, on leg base, be fixed with two sleeve pipes that are parallel to each other, two sleeve pipe upper ends are fixedly connected with connecting plate, in two sleeve pipes, be sliding combined with respectively the axis of guide, two axis of guide upper ends are fixedly installed on bearing, bearing middle part is provided with back shaft, the lower end of back shaft is provided with movable pulley, the leg base in back shaft left side is provided with extension spring, extension spring top is provided with the fixed pulley being fixed on connecting plate, there is pull rope one end to be fixed on the connecting plate on back shaft right side, the other end is walked around movable pulley lower end, behind fixed pulley upper end, be connected in the upper end of extension spring, described bearing is fixed on desktop support bottom surface, described desktop mid-stent is hinged with adjustable desktop, on desktop support, rotate and be provided with rotating shaft, on rotating shaft, be provided with by movable sprocket, angular adjustment motor is installed on desktop support, angular adjustment motor is connected with the drive sprocket being connected with passive chain gear transmission, two rocking arms are installed on rotating shaft, rocking arm front end is hinged with strut, strut upper end is articulated with adjustable desktop bottom surface, and both sides, adjustable desktop bottom surface and front are equipped with respectively small table surface.
2. domestic type myopia prevention desk for study according to claim 1, is characterized in that, described front, adjustable desktop both sides is provided with object placing platform, and the dead ahead of adjustable desktop is provided with the book reading plate of rotary setting.
3. domestic type myopia prevention desk for study according to claim 1, is characterized in that, described axis of guide fit on has the cutting ferrule being fixed on connecting plate, has multiple bar-shaped troughs on cutting ferrule, and card sleeve clamp is buckled with clip, and clip is articulated with on connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410193165.5A CN103976555B (en) | 2014-05-08 | 2014-05-08 | Domestic type myopia prevention desk for study |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410193165.5A CN103976555B (en) | 2014-05-08 | 2014-05-08 | Domestic type myopia prevention desk for study |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103976555A true CN103976555A (en) | 2014-08-13 |
| CN103976555B CN103976555B (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410193165.5A Active CN103976555B (en) | 2014-05-08 | 2014-05-08 | Domestic type myopia prevention desk for study |
Country Status (1)
| Country | Link |
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| CN (1) | CN103976555B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662383A (en) * | 2018-04-25 | 2018-10-16 | 未石互动科技股份有限公司 | A kind of projection multiple point touching table arrangement for multi-lens camera |
Citations (6)
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|---|---|---|---|---|
| CN2274444Y (en) * | 1996-07-03 | 1998-02-18 | 陈永生 | Worm gear mechanism for lifting table legs |
| NL1004916C2 (en) * | 1996-12-30 | 1998-07-01 | Lubatec B V | Table with two legs and height adjustment system |
| CN2783828Y (en) * | 2005-03-08 | 2006-05-31 | 大将作家具有限公司 | Improved structure of lifting and slanted desk |
| CN101057730A (en) * | 2007-03-22 | 2007-10-24 | 封晏 | Table with lifting device |
| CN201076160Y (en) * | 2007-07-24 | 2008-06-25 | 河南科技大学 | Adjustable desks |
| CN203814867U (en) * | 2014-05-08 | 2014-09-10 | 朱景超 | Household learning desk preventing myopia |
-
2014
- 2014-05-08 CN CN201410193165.5A patent/CN103976555B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2274444Y (en) * | 1996-07-03 | 1998-02-18 | 陈永生 | Worm gear mechanism for lifting table legs |
| NL1004916C2 (en) * | 1996-12-30 | 1998-07-01 | Lubatec B V | Table with two legs and height adjustment system |
| CN2783828Y (en) * | 2005-03-08 | 2006-05-31 | 大将作家具有限公司 | Improved structure of lifting and slanted desk |
| CN101057730A (en) * | 2007-03-22 | 2007-10-24 | 封晏 | Table with lifting device |
| CN201076160Y (en) * | 2007-07-24 | 2008-06-25 | 河南科技大学 | Adjustable desks |
| CN203814867U (en) * | 2014-05-08 | 2014-09-10 | 朱景超 | Household learning desk preventing myopia |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662383A (en) * | 2018-04-25 | 2018-10-16 | 未石互动科技股份有限公司 | A kind of projection multiple point touching table arrangement for multi-lens camera |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103976555B (en) | 2016-03-02 |
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Effective date of registration: 20170204 Address after: 233500 Anhui city of Bozhou province Mengcheng County Office of the East six years Wang Zhuang Patentee after: Anhui Yu Tai Technology Co. Ltd. Address before: 233500 Anhui Province, Bozhou city Mengcheng County East Economic Development Zone Anhui Kangtai Food Industry Co. Ltd. Patentee before: Zhu Jingchao |