CN203814980U - Myopia-preventing student chair base driving device - Google Patents
Myopia-preventing student chair base driving device Download PDFInfo
- Publication number
- CN203814980U CN203814980U CN201420235286.7U CN201420235286U CN203814980U CN 203814980 U CN203814980 U CN 203814980U CN 201420235286 U CN201420235286 U CN 201420235286U CN 203814980 U CN203814980 U CN 203814980U
- Authority
- CN
- China
- Prior art keywords
- myopia
- seat base
- chair base
- guide rods
- chair
- 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 - Lifetime
Links
- 208000001491 myopia Diseases 0.000 title claims abstract description 20
- 210000001747 pupil Anatomy 0.000 claims description 7
- 230000004379 myopia Effects 0.000 abstract description 8
- 230000007547 defect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 208000010415 Low Vision Diseases 0.000 description 1
- 208000000875 Spinal Curvatures Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000004303 low vision Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004358 school myopia Effects 0.000 description 1
Landscapes
- Chairs Characterized By Structure (AREA)
Abstract
The utility model discloses a myopia-preventing student chair base driving device which comprises a chair base glidingly mounted on two parallel guide rods, wherein liner bearings glidingly and linearly matched with the guide rods are fixed on the chair base; the front ends of the guide rods are fixedly connected onto a school desk rack; and a front support and a rear support contacted with the ground are fixedly mounted in the middles and at the rear ends of the guide rods. The myopia-preventing student chair base driving device is suitable for being used by students at home and has no contact friction with a carpet or floor when moving forward and backward, so that the front and back positions and the height of a chair are conveniently and freely adjusted and the chair cannot rotate freely when the students read books or do homework, the user comfort of the students is improved, and the myopia is prevented.
Description
Technical field
The utility model relates to chair and desk for pupils field, specifically belongs to Anti-shortsightedness pupil seat base drive unit.
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 surpassed 300,000,000,33% of the A nearsighted person Yi Zhan world of China, 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 that unreasonable structure due to 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, when 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 Anti-shortsightedness pupil seat base drive unit, the applicable student use of being in, while moving forward and backward not with carpet or floor contact friction, be convenient to reading or the front and back position of free adjustment chair of doing the homework, highly, and can freely not rotate, the comfort that improves student, prevents near-sighted generation.
The technical solution of the utility model is as follows:
Anti-shortsightedness pupil seat base drive unit, include seat base, seat base is slidably mounted on two guide posts that are parallel to each other, on seat base, be fixed with and the sliding straight linear bearing coordinating of guide post, guide post front end is fixedly connected in study table frame, guide post middle part, rear end is installed with respectively the front bearing contacting with ground, rear support, front sprocket wheel is installed on front bearing, reducing motor is installed on rear support, reducing motor drives and is connected with rear sprocket wheel, front sprocket wheel, the chain that on rear sprocket wheel, suit disconnects, chain two ends are fixedly connected on respectively the location-plate on seat base.
Reducing motor of the present utility model drives and is connected with rear sprocket wheel, and reducing motor startup drives seat base to move relative to guide post by chain transmission, realizes the adjusting that moves forward and backward of seat; Pull lifting handle, positioned-lifting bar can be realized the adjusting of height of seat, simultaneously because outer sliding sleeve, inner sliding sleeve are square-section, has guaranteed that seat can not rotate, and has guaranteed that study notice is concentrated; Between seat and backrest face, by elastic support plate, install, guaranteed that student's seat is on seat, back is comparatively comfortable, indefatigability.Because shoulder buckle is stuck in shoulder, guaranteed that books and eyes keep suitable distance simultaneously, prevented that myopia from producing.
The utility model is applicable to student's uses of being in, while moving forward and backward not with carpet or floor contact friction, be convenient to reading or the front and back position of free adjustment chair of doing the homework, highly, and can freely do not rotate, raising student's comfort, prevents near-sighted generation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Referring to accompanying drawing, Anti-shortsightedness pupil seat base drive unit, include seat base 1, seat base 1 is slidably mounted on two guide posts that are parallel to each other 2, on seat base 1, be fixed with and the sliding straight linear bearing coordinating 3 of guide post 2, guide post 2 front ends are fixedly connected in study table frame, guide post 2 middle parts, rear end is installed with respectively the front bearing 4 contacting with ground, rear support 5, front sprocket wheel 6 is installed on front bearing 4, reducing motor 7 is installed on rear support 5, reducing motor 7 drives and is connected with rear sprocket wheel 8, front sprocket wheel 6, the chain 9 that on rear sprocket wheel 8, suit disconnects, chain 9 two ends are fixedly connected on respectively the location-plate on seat base 1.
Claims (1)
1. Anti-shortsightedness pupil seat base drive unit, include seat base, it is characterized in that, seat base is slidably mounted on two guide posts that are parallel to each other, on seat base, be fixed with and the sliding straight linear bearing coordinating of guide post, guide post front end is fixedly connected in study table frame, guide post middle part, rear end is installed with respectively the front bearing contacting with ground, rear support, front sprocket wheel is installed on front bearing, reducing motor is installed on rear support, reducing motor drives and is connected with rear sprocket wheel, front sprocket wheel, the chain that on rear sprocket wheel, suit disconnects, chain two ends are fixedly connected on respectively the location-plate on seat base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235286.7U CN203814980U (en) | 2014-05-08 | 2014-05-08 | Myopia-preventing student chair base driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235286.7U CN203814980U (en) | 2014-05-08 | 2014-05-08 | Myopia-preventing student chair base driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203814980U true CN203814980U (en) | 2014-09-10 |
Family
ID=51470538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420235286.7U Expired - Lifetime CN203814980U (en) | 2014-05-08 | 2014-05-08 | Myopia-preventing student chair base driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203814980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105768657A (en) * | 2016-04-25 | 2016-07-20 | 朱景超 | Chair of myopia and humpback preventing study desk and chair |
-
2014
- 2014-05-08 CN CN201420235286.7U patent/CN203814980U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105768657A (en) * | 2016-04-25 | 2016-07-20 | 朱景超 | Chair of myopia and humpback preventing study desk and chair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190108 Address after: 233500 South of Madian Village 307 Line, Zhuangzhou Office, Mengcheng County, Bozhou City, Anhui Province Patentee after: ANHUI YUDI INTELLIGENT TECHNOLOGY CO.,LTD. Address before: 233500 Anhui Bozhou Mengcheng Chengdong Economic Development Zone Anhui Kangtai Food Industry Co., Ltd. Patentee before: Zhu Jingchao |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
|
| CX01 | Expiry of patent term |