CN203814949U - Household learning desk and chair combination preventing myopia - Google Patents

Household learning desk and chair combination preventing myopia Download PDF

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Publication number
CN203814949U
CN203814949U CN201420235272.5U CN201420235272U CN203814949U CN 203814949 U CN203814949 U CN 203814949U CN 201420235272 U CN201420235272 U CN 201420235272U CN 203814949 U CN203814949 U CN 203814949U
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CN
China
Prior art keywords
desktop
seat
chair
fixed
support
Prior art date
Application number
CN201420235272.5U
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Chinese (zh)
Inventor
朱景超
Original Assignee
朱景超
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 朱景超 filed Critical 朱景超
Priority to CN201420235272.5U priority Critical patent/CN203814949U/en
Application granted granted Critical
Publication of CN203814949U publication Critical patent/CN203814949U/en

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Abstract

The utility model discloses a household learning desk and chair combination preventing myopia. The household learning desk and chair combination comprises a learning desk and a learning chair. The learning chair comprises a chair base installed on two parallel guide rods in a sliding mode. The chair base is fixedly provided with linear bearings matched with the guide rods in a linear sliding mode. The front ends of the guide rods are fixedly connected to a learning desk rack. The middle and the rear end of each guide rod are fixedly provided with a front support and a rear support respectively, wherein the front support and the rear support make contact with the ground. The front supports are provided with front chain wheels, and the rear supports are provided with speed reducing motors. The speed reducing motors are connected with rear chain wheels in a driving mode. The combination is suitable for being used by students at home, a desktop and the chair do not make contact or rub with a carpet or the floor in the mutual moving process, the overall height of the desktop is convenient to adjust, the front and back positions and the height of the chair can be adjusted freely, the chair will not rotate freely, the use comfort of the students is improved, and the myopia can be prevented.

Description

The combination of domestic type myopia proof studying tables and chairs
Technical field
The utility model relates to chair and desk for pupils field, specifically belongs to the combination of domestic type myopia proof studying tables and chairs.
Background technology
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 proof studying tables and chairs combination, the applicable student use of being in, when desktop and seat move mutually not with carpet or floor contact friction, desktop whole height is easy to adjust, the front and back position of free adjustment chair, highly, and can freely not rotate, improve student's comfort, prevent near-sighted generation.
The technical solution of the utility model is as follows:
The combination of domestic type myopia proof studying tables and chairs, include study table, learning chair, it is characterized in that, learning chair includes 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 on study table underframe, 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, seat is installed on seat base by positioned-lifting bar, described positioned-lifting bar includes outer sliding sleeve, the inner sliding sleeve of Pneumatic assembly, lifting handle and square-section, inner sliding sleeve is fixed on seat base, outer sliding sleeve is fixed on seat bracket, on seat bracket with the bursting diaphragm that is positioned at outer sliding sleeve upper end, described study table includes 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 seat base front portion is provided with pedal.
Between described seat and backrest face, install by elastic support plate, elastic support plate middle part has flexible bending section, and elastic support plate top, bottom have bar hole, are separately installed with the locking nut matching with bar hole on backrest face, seat.
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.
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 ensured that seat can not rotate, and has ensured that study notice is concentrated; Between seat and backrest face, install by elastic support plate, ensured that student's seat is on seat, back is comparatively comfortable, indefatigability.Due to myopia prevention shoulder buckle, the intelligentized shoulder that is buckled in, has ensured that books and eyes keep suitable distance simultaneously, prevents that myopia from producing.
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.
The utility model is applicable to student's use of being in, when desktop and seat move mutually not with carpet or floor contact friction, desktop whole height is easy to adjust, the front and back position of free adjustment chair, highly, and can freely not rotate, improve student's comfort, prevent near-sighted generation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is lifting leg assembly schematic diagram of the present utility model.
Fig. 3 is desktop support scheme of installation of the present utility model.
Fig. 4 is seat base scheme of installation of the present utility model.
Detailed description of the invention
Referring to accompanying drawing, the combination of domestic type myopia proof studying tables and chairs, include study table 1, learning chair 2, learning chair 2 includes seat base 3, seat base 3 is slidably mounted on two guide posts that are parallel to each other 16, on seat base 3, be fixed with and the sliding straight linear bearing coordinating 37 of guide post 16, guide post 16 front ends are fixedly connected on study table underframe, guide post 16 middle parts, rear end is installed with respectively the front bearing 30 contacting with ground, rear support 31, front sprocket wheel 32 is installed on front bearing 30, reducing motor 33 is installed on rear support 31, reducing motor 33 drives and is connected with rear sprocket wheel 34, front sprocket wheel 32, the chain 35 that on rear sprocket wheel 34, suit disconnects, chain 35 two ends are fixedly connected on respectively the location-plate 36 on seat base 3, seat 4 is installed on seat base 3 by positioned-lifting bar 5, positioned-lifting bar 5 includes outer sliding sleeve, the inner sliding sleeve of Pneumatic assembly, lifting handle and square-section, inner sliding sleeve is fixed on seat base, outer sliding sleeve is fixed on seat bracket, on seat bracket with the bursting diaphragm that is positioned at outer sliding sleeve upper end, study table 1 includes desktop support 6, lifting leg assembly 7, lifting leg assembly 7 includes leg base 17, on leg base 17, be fixed with two sleeve pipes that are parallel to each other 18, two sleeve pipe 18 upper ends are fixedly connected with connecting plate 19, two interior axis of guides 20 that are sliding combined with respectively of sleeve pipe 18, two axis of guide 20 upper ends are fixedly installed on bearing 21, bearing 21 middle parts are provided with back shaft 22, the lower end of back shaft 22 is provided with movable pulley 23, the leg base 17 in back shaft 22 left sides is provided with extension spring 24, extension spring 24 tops are provided with the fixed pulley being fixed on connecting plate, there are pull rope 25 one end to be fixed on the connecting plate 19 on back shaft 22 right sides, the other end is walked around movable pulley 23 lower ends, behind fixed pulley upper end, be connected in the upper end of extension spring 24, bearing 21 is fixed on desktop support 6 bottom surfaces, described desktop support 6 middle parts are hinged with adjustable desktop 8, on desktop support 6, rotate and be provided with rotating shaft 25, on rotating shaft 25, be provided with by movable sprocket 26, angular adjustment motor 27 is installed on desktop support 6, angular adjustment motor 27 is connected with the drive sprocket being connected with passive chain gear transmission, two rocking arms 28 are installed on rotating shaft 25, rocking arm 28 front ends are hinged with strut 29, strut 29 upper ends are articulated with adjustable desktop 8 bottom surfaces, adjustable desktop 8 both sides, bottom surface and front are equipped with respectively small table surface 9, seat base 3 front portions are provided with pedal 10, between seat 4 and backrest face 2, install by elastic support plate 11, elastic support plate 11 middle parts have flexible bending section 12, elastic support plate 11 tops, bottom has bar hole, backrest face 2, on seat 4, be separately installed with the locking nut 13 matching with bar hole, adjustable desktop 8 fronts, both sides are provided with object placing platform 14, the dead ahead of adjustable desktop 8 is provided with the book reading plate 15 of rotary setting.

Claims (4)

1. domestic type myopia proof studying tables and chairs combination, include study table, learning chair, it is characterized in that, learning chair includes 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 on study table underframe, 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, seat is installed on seat base by positioned-lifting bar, described positioned-lifting bar includes outer sliding sleeve, the inner sliding sleeve of Pneumatic assembly, lifting handle and square-section, inner sliding sleeve is fixed on seat base, outer sliding sleeve is fixed on seat bracket, on seat bracket with the bursting diaphragm that is positioned at outer sliding sleeve upper end, described study table includes 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.
2. domestic type myopia proof studying tables and chairs combination according to claim 1, is characterized in that, described seat base front portion is provided with pedal.
3. domestic type myopia proof studying tables and chairs combination according to claim 1, it is characterized in that, between described seat and backrest face, install by elastic support plate, elastic support plate middle part has flexible bending section, elastic support plate top, bottom have bar hole, are separately installed with the locking nut matching with bar hole on backrest face, seat.
4. domestic type myopia proof studying tables and chairs combination 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.
CN201420235272.5U 2014-05-08 2014-05-08 Household learning desk and chair combination preventing myopia CN203814949U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN201420235272.5U CN203814949U (en) 2014-05-08 2014-05-08 Household learning desk and chair combination preventing myopia

Publications (1)

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CN203814949U true CN203814949U (en) 2014-09-10

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103976579A (en) * 2014-05-08 2014-08-13 朱景超 Household type myopia prevention learning desk and chair combination
CN104433509A (en) * 2014-12-22 2015-03-25 朱景超 Myopia preventing desk for child
CN105768657A (en) * 2016-04-25 2016-07-20 朱景超 Chair of myopia and humpback preventing study desk and chair
WO2017185805A1 (en) * 2016-04-26 2017-11-02 吴骏 Lie-down support seat and work set containing said support seat
CN108013613A (en) * 2017-12-04 2018-05-11 中山市榄商置业发展有限公司 A kind of integrated Intelligent school desk of tables and chairs
CN109935114A (en) * 2019-04-18 2019-06-25 江苏海事职业技术学院 A kind of English picture mosaic teaching equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103976579A (en) * 2014-05-08 2014-08-13 朱景超 Household type myopia prevention learning desk and chair combination
CN103976579B (en) * 2014-05-08 2016-05-25 朱景超 The combination of domestic type myopia proof studying tables and chairs
CN104433509A (en) * 2014-12-22 2015-03-25 朱景超 Myopia preventing desk for child
CN105768657A (en) * 2016-04-25 2016-07-20 朱景超 Chair of myopia and humpback preventing study desk and chair
WO2017185805A1 (en) * 2016-04-26 2017-11-02 吴骏 Lie-down support seat and work set containing said support seat
CN108013613A (en) * 2017-12-04 2018-05-11 中山市榄商置业发展有限公司 A kind of integrated Intelligent school desk of tables and chairs
CN109935114A (en) * 2019-04-18 2019-06-25 江苏海事职业技术学院 A kind of English picture mosaic teaching equipment

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GR01 Patent grant
C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20140910

Effective date of abandoning: 20160525

C25 Abandonment of patent right or utility model to avoid double patenting