CN203814867U - Household learning desk preventing myopia - Google Patents
Household learning desk preventing myopia Download PDFInfo
- Publication number
- CN203814867U CN203814867U CN201420235273.XU CN201420235273U CN203814867U CN 203814867 U CN203814867 U CN 203814867U CN 201420235273 U CN201420235273 U CN 201420235273U CN 203814867 U CN203814867 U CN 203814867U
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- desktop
- fixed
- connecting plate
- back shaft
- adjustable
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- Withdrawn - After Issue
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Abstract
The utility model discloses a household learning desk preventing myopia. The learning desk comprises a desktop bracket and a lifting leg assembly. The lifting leg assembly comprises a leg base. The leg base is fixedly provided with two parallel casing pipes. The upper ends of the two casing pipes are fixedly connected with connecting plates. Guiding shafts are arranged in the two casing pipes respectively in a sliding fit mode. The upper ends of the two guide shafts are fixedly installed on a support. A supporting shaft is installed in the middle of the support. The lower end of the supporting shaft is provided with movable pulleys. The overall height of a desktop is convenient to adjust, the angle of the designed adjustable desktop can be adjusted freely, fatigue of learning is relieved, the learning efficiency is improved, and all operations can be finished by one person.
Description
Technical field
The utility model relates to chair and desk for pupils field, specifically belongs 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.
Utility model content
The purpose of this utility model is to provide a kind of domestic type myopia prevention desk for study, and 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.
The technical solution of the utility model 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 utility model 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 utility model 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 utility model.
Fig. 2 is desktop supporting structure schematic diagram of the present utility model.
Fig. 3 is lifting leg modular construction schematic diagram of the present utility model.
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 |
|---|---|---|---|
| CN201420235273.XU CN203814867U (en) | 2014-05-08 | 2014-05-08 | Household learning desk preventing myopia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235273.XU CN203814867U (en) | 2014-05-08 | 2014-05-08 | Household learning desk preventing myopia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203814867U true CN203814867U (en) | 2014-09-10 |
Family
ID=51470427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420235273.XU Withdrawn - After Issue CN203814867U (en) | 2014-05-08 | 2014-05-08 | Household learning desk preventing myopia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203814867U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103976555A (en) * | 2014-05-08 | 2014-08-13 | 朱景超 | Household type myopia prevention learning desk |
| CN105326216A (en) * | 2015-11-20 | 2016-02-17 | 浙江新益智能驱动科技有限公司 | Tabletop assembly of electric studying hoisting table |
| CN105342133A (en) * | 2015-11-20 | 2016-02-24 | 浙江新益智能驱动科技有限公司 | Electric studying elevating table |
| CN107713378A (en) * | 2017-11-24 | 2018-02-23 | 东莞市博士有成家具有限公司 | Full-automatic study table |
| CN108851516A (en) * | 2018-07-24 | 2018-11-23 | 合肥爱玩动漫有限公司 | A kind of liftable cartoon design workbench |
| CN113545598A (en) * | 2021-08-12 | 2021-10-26 | 湖南亚纳秒健康产业有限公司 | Intelligent myopia-preventing healthy learning table |
-
2014
- 2014-05-08 CN CN201420235273.XU patent/CN203814867U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103976555A (en) * | 2014-05-08 | 2014-08-13 | 朱景超 | Household type myopia prevention learning desk |
| CN103976555B (en) * | 2014-05-08 | 2016-03-02 | 朱景超 | Domestic type myopia prevention desk for study |
| CN105326216A (en) * | 2015-11-20 | 2016-02-17 | 浙江新益智能驱动科技有限公司 | Tabletop assembly of electric studying hoisting table |
| CN105342133A (en) * | 2015-11-20 | 2016-02-24 | 浙江新益智能驱动科技有限公司 | Electric studying elevating table |
| CN107713378A (en) * | 2017-11-24 | 2018-02-23 | 东莞市博士有成家具有限公司 | Full-automatic study table |
| CN108851516A (en) * | 2018-07-24 | 2018-11-23 | 合肥爱玩动漫有限公司 | A kind of liftable cartoon design workbench |
| CN113545598A (en) * | 2021-08-12 | 2021-10-26 | 湖南亚纳秒健康产业有限公司 | Intelligent myopia-preventing healthy learning table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140910 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |