CN203692895U - Novel table and chair - Google Patents
Novel table and chair Download PDFInfo
- Publication number
- CN203692895U CN203692895U CN201320885290.3U CN201320885290U CN203692895U CN 203692895 U CN203692895 U CN 203692895U CN 201320885290 U CN201320885290 U CN 201320885290U CN 203692895 U CN203692895 U CN 203692895U
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- chair
- fixed
- side link
- seat
- cam
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Abstract
The utility model discloses a novel table and chair and relates to the technical field of teaching appliance. The novel table and chair comprises a pedestal and a chair frame, the chair frame is connected with a substrate, the chair frame is provided with a chair back, the substrate is provided with a chair surface, the chair surface is mounted on two parallelogram-shaped mechanisms, each parallelogram-shaped mechanism comprises a side link, two connecting bars and two fixed shafts, one connecting bar is rotationally connected with one end of the side link while the other is rotationally connected with the other end of the side link, a hexagonal prism-shaped hole is formed in the end of the connecting bar, the connecting bar sleeves the fixed shaft through the hexagonal prism-shaped hole, the fixed shaft is fixed on the substrate and is provided with a compression spring, a second cam is fixed at the end of the compression spring and is provided with a hexagonal prism-shaped sleeve matched with the hexagonal prism-shaped hole in the end of the connecting bar, and a first cam sleeves the fixed shaft. The novel table and chair has beneficial effects that the chair surface can be adjusted vertically, the user can regulate the chair height according to the need, the desk surface comprises an upper layer and a lower layer capable of sliding, so that the user can regulate the width of the desk surface according to different needs.
Description
[technical field]
The utility model relates to a kind of desk and chair of imparting knowledge to students and using, and relates in particular to a kind of desk & chair.
[background technology]
Tables and chairs are instruments with the most use in student's learning life every day.Human factor engineering points out that the long-term incompatible tables and chairs of a set of and self size that use can make people of flaccid muscles, and action becomes slow, and if use a set of desk and chair adapting with self size, can reduce learning fatigue, improve learning efficiency.China's most colleges admit all adopts fixed desk chair at present.The advantages such as fixed desk chair has convenient management, attractive in appearance.But fixed design also makes its needs that can not well adapt to each student, as: owing to considering student's turnover situation, the design of traditional fixed desk chair all can reserve enough spaces and be beneficial to pedestrian's turnover.When but this section of space makes student's health lean against on backrest, can not write, and at all in the time that forward lean is write, can make again health lose the support of backrest, very easily tired.
[utility model content]
The purpose of this utility model is effectively to overcome the deficiency of above-mentioned technology, and a kind of use height, the anglec of rotation of adjustable chair-back and desk & chair of top-adjustable width of adjustable chair is provided.
The technical solution of the utility model is achieved in that it comprises base and is fixed on the chair frame on base, in described chair frame, be connected with and the integrated pedestal of chair frame, chair frame is provided with a chair back, described pedestal is provided with a seat, its improvements are: described seat is arranged on two parallel-crank mechanisms, described parallel-crank mechanism comprises a connecting rod, two side links and two fixed axis, described seat below is fixed wtih seat fixed bar, and the two ends of this seat fixed bar are separately fixed on the side link of two parallel-crank mechanisms; Described two connecting rods are rotatably connected on respectively the two ends of side link, on the end of connecting rod, there is hexagon hole, connecting rod is enclosed within respectively fixed axis by hexagon hole, described fixed axis is fixed on pedestal, fixed axis is provided with a Compress Spring, this Compress Spring end is fixed wtih one second cam, and on the second cam with six prism sleeves that can be suitable with the hexagon hole of connecting rod end, on described fixed axis, be also equipped with one first cam; On described pedestal, be rotationally connected and shaking on the other hand bar, the end of this manual rocking bar is rotatably connected on above-mentioned side link, described manual rocking bar is connected on the first above-mentioned cam by draught line, can drive the first cam to rotate, thus extruding the second cam driven six prism sleeve motions.
In above-mentioned structure, the described chair back is provided with arrangement for adjusting height, this arrangement for adjusting height is made up of backboard, spring, protruding fixed head and arcuation projection, described backboard is fixed on the chair back, and one end of spring is fixed on backboard, and the other end is fixed on protruding fixed head, described arcuation projection is fixed on protruding fixed head, in described chair frame, have the multiple grooves suitable with arcuation projection, when the chair back moves up and down, arcuation projection snaps in corresponding groove.
In above-mentioned structure, the described chair back is provided with angle regulator, this angle regulator is made up of chair back fixed axis, moving block, torsion spring and torsion spring fixed axis with square groove, described chair back fixed axis is arranged on chair back both sides, the top of chair back fixed axis is stretched in the square groove of moving block, described moving block is fixed on the fixing the tip of the axis of torsion spring, and described torsion spring is arranged on torsion spring fixed axis.
In above-mentioned structure, on the side link of described two parallel-crank mechanisms, be also respectively equipped with a handrail, this handrail is rotatably connected on described side link.
In above-mentioned structure, on the top of described two chair frames, be also installed with two back-up blocks, back-up block is provided with guide rail, is provided with two-layer desktop in guide rail, and upper tabletop can be slided along guide rail, and the inner side of upper tabletop and the outside of lower floor's desktop are joined.
The beneficial effects of the utility model are: the utility model is mainly conceived to improve institution of higher learning's tradition desk and chair, for student creates good academic environment, therefore, the utility model possesses following advantage: 1, for adapting to because of the difference needs of height difference to chair height, in the utility model, seat can carry out up-down adjustment, user can need to adjust chair height according to self, and maximum adjustment height is 100mm; 2, for solving due to chair and the unreasonable possible writer fatigue causing of desktop void designs, desktop of the present utility model is designed to slidably two-layer up and down, user can need to adjust desktop width according to difference, and then guarantees can alleviate physical fatigue by backrest in long learning process; 3, be to the different needs by angle while meeting study and rest, in these works, back partial design for rotating within the scope of certain angle, the design of this hommization has met user and has leaned against and on chair, have a rest and different needs when study, and the chair back is designed to the curve adapting with people's backbone normal physiological camber line, more comfortable when user leans against on the chair back rest.
[accompanying drawing explanation]
Fig. 1, Fig. 2 are schematic perspective view of the present utility model;
Fig. 3 is the schematic perspective view of parallel-crank mechanism of the present utility model;
Fig. 4 is the schematic perspective view of arrangement for adjusting height of the present utility model;
Fig. 5 is the schematic perspective view of angle regulator of the present utility model;
Fig. 6 is the control principle drawing of handrail of the present utility model.
[specific embodiment]
Below in conjunction with drawings and Examples, the utility model will be further described.
Shown in Fig. 1, Fig. 2, a kind of desk & chair that the utility model discloses, this desk & chair is mainly conceived to improve the traditional desk and chair of institution of higher learning, for student creates good academic environment.Shown in Fig. 1, it comprises base 10 and is fixed on the chair frame 20 on base 10, base 10 can be bolted on ground, in chair frame 20, be connected with and the integrated pedestal 201 of chair frame 20, this pedestal 201 is perpendicular to chair frame 20, and chair frame 20 is provided with a chair back 30, and above-mentioned pedestal 201 is provided with a seat 40, people can be sitting on seat 40, can lean against on the described chair back 30 simultaneously.
Further, above-mentioned seat 40 is arranged on two parallel-crank mechanisms 50, shown in Fig. 3, for the schematic perspective view of parallel-crank mechanism 50, this parallel-crank mechanism 50 comprises a side link 501, two connecting rods 502 and two fixed axis 503, in conjunction with Fig. 2, seat 40 belows are fixed wtih seat fixed bar 401, and the two ends of this seat fixed bar 401 are separately fixed on the side link 501 of two parallel-crank mechanisms 50, two connecting rods 502 are rotatably connected on respectively the two ends of side link 501, on the end of connecting rod 502, there is hexagon hole, connecting rod 502 is enclosed within respectively fixed axis 503 by hexagon hole, fixed axis 503 is fixed on pedestal 201, fixed axis 503 is provided with a Compress Spring 504, these Compress Spring 504 ends are fixed wtih one second cam 505, and with six prism sleeves 506 that can be suitable with the hexagon hole of connecting rod 502 ends, on described fixed axis 503, be also equipped with one first cam 507 on the second cam 505, continue with reference to Fig. 1, shown in Fig. 2, on described pedestal 201, be rotationally connected and shaking on the other hand bar 60, the end of this manual rocking bar 60 is rotatably connected on above-mentioned side link 501, manually rocking bar 60 is connected on the first above-mentioned cam 507 by draught line, can drive the first cam 507 to rotate, shown in Fig. 3, after the first cam 507 rotates, the second cam 505 is meshed with the first cam 507, therefore, push the second cam 505, the second 505, cam extruding Compress Spring 504, six 506, prism sleeves move outward, parallel-crank mechanism 50 rotates, thereby regulate the height of seat 40.When seat 40 is adjusted to after proper height, stop shaking manual rocking bar 60, the first cam 507 disappears to the active force of the second cam 505, six prism sleeves 506 are got back to initial position under the active force of Compress Spring 504, with connecting rod 502 hexagon hole coincide, fix parallel-crank mechanism 50, fix the height of seat 40.Shown in Fig. 2, in order to strengthen the intensity of seat 40, the below of seat 40 is provided with a bracing piece 402, and the two ends of bracing piece 402 are fixed on described side link 501, on bracing piece 402, be fixed wtih two reinforcement supporting plates 403, strengthen supporting plate 403 tops and be attached on the bottom surface of above-mentioned seat 40.
With reference to Fig. 1 and in conjunction with shown in Fig. 4, the chair back 30 is provided with arrangement for adjusting height 301, this arrangement for adjusting height 301 is by backboard 302, spring 303, projection fixed head 304 and arcuation projection 305 form, described backboard 302 is fixed on the chair back 30, one end of spring 303 is fixed on backboard 302, the other end is fixed on protruding fixed head 304, described arcuation projection 305 is fixed on protruding fixed head 304, in above-mentioned chair frame 20, there are the multiple grooves suitable with arcuation projection 305, therefore, in the time having external force that the chair back 30 is moved up and down, arcuation projection 305 has the trend moving up and down in groove, projection fixed head 304 extrusion springs 303, spring 303 shrinks, 30 of the chair back can move up and down, while moving to proper height, arcuation projection 305 snaps in corresponding groove, realize the fixing of the chair back 30.
With reference to Fig. 1 and in conjunction with shown in Fig. 5, the chair back 30 is provided with angle regulator, this angle regulator is by chair back fixed axis 306, moving block 307 with square groove, torsion spring 308 and torsion spring fixed axis 309 form, chair back fixed axis 309 is arranged on the chair back 30 both sides, the top of chair back fixed axis 309 is stretched in the square groove of moving block 307, moving block 307 is fixed on the end of torsion spring fixed axis 309, torsion spring 308 is arranged on torsion spring fixed axis 309, therefore, in the time that the chair back 30 is squeezed, the stressed chair back fixed axis 306 that makes of the chair back 30 slides in the square groove of moving block 307, drive moving block 307 to rotate, extruding torsion spring 308, after pressure disappears, the chair back 30 restores to the original state under the restoring force of torsion spring 308, realize the control that the chair back 30 is rotated.
As best embodiment, on the top of two chair frames 20, be also installed with two back-up blocks 60, back-up block 70 is provided with guide rail, in guide rail, be provided with two-layer desktop 80, upper tabletop can be slided along guide rail, the inner side of upper tabletop and the outside of lower floor's desktop are joined, and upper tabletop falls equal with lower floor desktop, can make desktop increase to original 2 times.
In conjunction with Fig. 1 and Fig. 2, on the side link 501 of two parallel-crank mechanisms 50, be also respectively equipped with a handrail 90, this handrail 90 is rotatably connected on described side link 501, shown in Fig. 6, on the bolt 901 of supporting armrests 90, cover has hexagon sleeve 902, one end of hexagon sleeve 902 has groove 903, and the other end has spring 904 to be connected with bolt 901.User pulls handrail 90, and spring 904 elastic force are constant, arrives correct position, and seat thickness sticks into groove 903, and spring 904 elastic force increase, thereby make handrail 90 in correct position and control handrail 90 invariant positions.
By consulting standard GB/T/T14774-1993, to obtain chair each several part size as follows: the adjustable range of seat height size is 350-460mm, seat is dark is 360-390mm, recommendation is 380mm, seat is wide is often more than 500mm, handrail height is 230 ± 20mm, suitable tables and chairs height=1/3 high-(20--30) mm, the above table height in junior middle school is 760mm, the wide 300mm of desk and chair writing panel, thickness G reatT.GreaT.GT=18mm, the thick 12mm of the wide 430* of the long 430* of desk and chair seat board, the thick 12mm of the wide 430* of backrest plate hight 480*, desk and chair chair leg 30*80mm, wall thickness >=1.8mm, trustship 30*90mm, wall thickness >=1.8mm.According to the actual investigation of this standard and classroom, as preferred embodiment, in the present embodiment, by as follows the dimension definitions of above-mentioned desk & chair: seat support is high: 400mm, the dark 380mm of seat, the wide 500mm of seat, table height 760mm, the wide levels of plate is 300mm, thickness 18mm, seat is of a size of 430*430*12, and backrest is of a size of 480*430*12.
The utility model is take manual rocking bar 60 as driving link, drive parallel-crank mechanism 50 to regulate seat 40 height by connecting rod 502, height adjustment range is controlled between 0-100mm, take shaft coupling operation principle as starting point, design hexagon pin and connect shaft coupling, connect fixed parts screw rod and parallel-crank mechanism 50, thereby fixing seat 40.Handrail 90 should remain relative static with seat 40 in whole adjustment process, therefore, handrail 90 is arranged on two side links 501 of parallel-crank mechanism 50, sweep for saving workpiece, convenient discrepancy and classroom, handrail is done to collapsible design, between handrail 90 and side link 501, connect with revolute pair, in revolute pair, add shock mount and have the compressing tablet of little groove, processing and projection corresponding to this little groove on side link 501, under the pressure of spring, by groove and protruding extruding fixed armrest.
The chair back 30 is fixed in chair frame 20 by arrangement for adjusting height 301, this arrangement for adjusting height 301 is designed to hollow circular-tube, in pipe two ends difference mounting spring 303 and arcuation projection 305, and in chair frame 20, process take 2.5cm as spacing and this arcuation projection 305 corresponding grooves, when adjusting back 30 height, carry out extrusion spring 303 by people's externally applied forces, make the chair back 30 up-down adjustment, after adjusting completes, remove external force, under the pressure of spring 303, groove in arcuation projection 305 and chair frame 20 is because mutually pushing and have static friction, the chair back 30 is static under the effect of static friction.
Levels design has greatly facilitated student's Free Writing with simple method, take human factor engineering as foundation, to realize student's Free Writing as target, use levels design desktop, student can need and the autonomous desk with adjustable face width of surrounding environment degree according to learning content, thereby realizes maximized well being sense.
The utility model, with Creating Comfort condition for study, by autonomous innovation, in conjunction with real daily life, uses mechanical knowledge to design this novel seat, and with dexterous intention, the intimate numerous students that are designed to make Comfortable student's environment, have unrivaled practicality.
Described above is only preferred embodiment of the present utility model, and above-mentioned specific embodiment is not to restriction of the present utility model.In technological thought category of the present utility model, can there is various distortion and modification, retouching that all those of ordinary skill in the art make according to above description, revise or be equal to replacement, all belong to the scope that the utility model is protected.
Claims (6)
1. a desk & chair, it comprises and in described chair frame, is connected with base and be fixed on the chair frame on base and the integrated pedestal of chair frame, and chair frame is provided with a chair back, and described pedestal is provided with a seat, it is characterized in that:
Described seat is arranged on two parallel-crank mechanisms, described parallel-crank mechanism comprises a side link, two connecting rods and two fixed axis, described seat below is fixed wtih seat fixed bar, and the two ends of this seat fixed bar are separately fixed on the side link of two parallel-crank mechanisms;
Described two connecting rods are rotatably connected on respectively the two ends of side link, on the end of connecting rod, there is hexagon hole, connecting rod is enclosed within respectively fixed axis by hexagon hole, described fixed axis is fixed on pedestal, fixed axis is provided with a Compress Spring, this Compress Spring end is fixed wtih one second cam, and on the second cam with six prism sleeves that can be suitable with the hexagon hole of connecting rod end, on described fixed axis, be also equipped with one first cam;
On described pedestal, be rotationally connected and shaking on the other hand bar, the end of this manual rocking bar is rotatably connected on above-mentioned side link, described manual rocking bar is connected on the first above-mentioned cam by draught line, can drive the first cam to rotate, thus extruding the second cam driven six prism sleeve motions.
2. a kind of desk & chair according to claim 1, it is characterized in that: the described chair back is provided with arrangement for adjusting height, this arrangement for adjusting height is made up of backboard, spring, protruding fixed head and arcuation projection, described backboard is fixed on the chair back, one end of spring is fixed on backboard, the other end is fixed on protruding fixed head, described arcuation projection is fixed on protruding fixed head, in described chair frame, there are the multiple grooves suitable with arcuation projection, when the chair back moves up and down, arcuation projection snaps in corresponding groove.
3. a kind of desk & chair according to claim 2, it is characterized in that: the described chair back is provided with angle regulator, this angle regulator is made up of chair back fixed axis, moving block, torsion spring and torsion spring fixed axis with square groove, described chair back fixed axis is arranged on chair back both sides, the top of chair back fixed axis is stretched in the square groove of moving block, described moving block is fixed on the fixing the tip of the axis of torsion spring, and described torsion spring is arranged on torsion spring fixed axis.
4. a kind of desk & chair according to claim 1, is characterized in that: on the side link of described two parallel-crank mechanisms, be also respectively equipped with a handrail, this handrail is rotatably connected on described side link.
5. a kind of desk & chair according to claim 1, it is characterized in that: on the top of described two chair frames, be also installed with two back-up blocks, back-up block is provided with guide rail, in guide rail, be provided with two-layer desktop, upper tabletop can be slided along guide rail, and the inner side of upper tabletop and the outside of lower floor's desktop are joined.
6. a kind of desk & chair according to claim 1, it is characterized in that: described seat below is provided with a bracing piece, and the two ends of bracing piece are fixed on described side link, are fixed wtih two reinforcement supporting plates on bracing piece, described reinforcement supporting plate top is attached to the bottom surface of above-mentioned seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885290.3U CN203692895U (en) | 2013-12-31 | 2013-12-31 | Novel table and chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885290.3U CN203692895U (en) | 2013-12-31 | 2013-12-31 | Novel table and chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203692895U true CN203692895U (en) | 2014-07-09 |
Family
ID=51043419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320885290.3U Expired - Fee Related CN203692895U (en) | 2013-12-31 | 2013-12-31 | Novel table and chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203692895U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106690929A (en) * | 2016-12-27 | 2017-05-24 | 王成宇 | Combined desk-chair set |
| CN106724184A (en) * | 2016-12-27 | 2017-05-31 | 王成宇 | A kind of adjustable-angle combined table and chair assembly |
| CN109588885A (en) * | 2018-11-25 | 2019-04-09 | 赵文祥 | A kind of integrated desk-chair of environment protection-type office, meeting |
-
2013
- 2013-12-31 CN CN201320885290.3U patent/CN203692895U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106690929A (en) * | 2016-12-27 | 2017-05-24 | 王成宇 | Combined desk-chair set |
| CN106724184A (en) * | 2016-12-27 | 2017-05-31 | 王成宇 | A kind of adjustable-angle combined table and chair assembly |
| CN106724184B (en) * | 2016-12-27 | 2019-05-24 | 王成宇 | A kind of adjustable-angle combined table and chair assembly |
| CN106690929B (en) * | 2016-12-27 | 2019-05-28 | 王成宇 | A kind of Combined desk/chair |
| CN109588885A (en) * | 2018-11-25 | 2019-04-09 | 赵文祥 | A kind of integrated desk-chair of environment protection-type office, meeting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |