CN202739212U - Health care desk and chair with backrest and knee pillow capable of adjusting position and seat capable of moving with people - Google Patents
Health care desk and chair with backrest and knee pillow capable of adjusting position and seat capable of moving with people Download PDFInfo
- Publication number
- CN202739212U CN202739212U CN 201220023476 CN201220023476U CN202739212U CN 202739212 U CN202739212 U CN 202739212U CN 201220023476 CN201220023476 CN 201220023476 CN 201220023476 U CN201220023476 U CN 201220023476U CN 202739212 U CN202739212 U CN 202739212U
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- seat
- chair
- knee pillow
- backrest
- knee
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Abstract
The utility model provides a health care desk and chair with a backrest and a knee pillow capable of adjusting positions and a seat capable of moving with people. The health care desk and chair comprises a rack, a desk body, a knee pillow, a seat and a backrest. The rack is a combined assembling structure. The knee pillow is disposed below the desk body, and the position of the knee pillow can be adjusted and preset. The seat is composed of a fixing bar which is the rack, a four-bar mechanism composed of movable bars including chair legs (8), a horizontal draw bar (30) and a lower draw bar (32), and a base plate (21) and a seat plate (9) which are hinged to the chair legs (8). The seat is rotatable, and the rotation angle can be adjusted and preset, and the seat can be folded backwardly. The backrest is disposed behind the rack and the vertivcal position of the backrest can be adjusted and preset. The health care desk and chair is advantageous in that sitting posture can be enabled to be correct and comfortable, and thereby fatigue caused by long-time sitting can be effectively reduced; with the seat capable of moving with people, students can stand up and sit down conveniently; when people leaves the desk and chair, the seat can be folded backwardly, and thereby approximately 2/5 occupying area of the desk and chair can be saved to facilitate evacuation of students.
Description
Technical field
The utility model relates to backrest and the knee pillow position of the upper class hour use of a kind of student can adjust the health protection desk chair that the seat has lag function.A kind of schooling apparatus with excellent health functions according to base of principle of human engineering design particularly.
Technical background
At present, the muscle of trunk group was in the larger static balance state of stress when the desk and chair that students is used made the student bend over the desk to write, and is easily tired, sits the bend over incorrect sitting-pose of hogback of yielding one-tenth then of a specified duration.This also is that groups of people suffer from lumbodorsal muscle pain, the one of the main reasons of the diseases such as the deformity of spinal column.In addition, no matter split or the desk and chair of disjunctor are unfavorable for that also the student is from the classroom rapid evacuation because the very inconvenient student of existence of chair (stool) " stands up " and salutes and answer the question to teacher.
Summary of the invention
The utility model has overcome deficiency of the prior art, and the health protection desk chair that the seat has lag function can be adjusted in the backrest and the knee pillow position that provide a kind of suitable student to use.Technical scheme of the present invention is: table body, support, knee pillow, seat, five parts of backrest adopt combining structure to be assembled into one, and the table body is arranged on support the place ahead; The knee pillow is arranged on the below of a body; Take support as fixed bar, chair leg 8, drag link 30, lower link 32 consist of the seat for the four-bar mechanism that motion bar forms together with the seat 9, the base plate 21 that are articulated on the chair leg 8; Backrest is arranged on the support rear.The locus of described knee pillow can be adjusted and preset; Described seat is that its flip angle that can overturn can be adjusted and presets, and can fold back and draw in; Described backrest can be adjusted up and down and preset.
Benefit of the present utility model is embodied in following three aspects:
One: when the people be sitting on the seat that leans forward behind the shank section of bending knee withstand on the knee pillow when upper body lean forward, can face high oblique desktop without hogback or the eyes of bowing, form suitable sighting distance and visual angle.The body center of gravity that leans forward is between buttocks and the knee and shares body weight by seat, knee pillow and shank, and allow human vertebra still be in the normal physiological curve state, avoided traditional " bending over the desk " sitting posture to need the muscle of trunk group to be in for a long time the larger static balance state of stress and the fatigue that produces and sitting is tired.When the people is flat when being seated on the seat, backrest just in time is supported on the posture of sitting up straight that waist S crook makes it be kept easily coming back and square one's shoulders.Its seat flip angle, knee pillow position, backrest height three all can adjust with the people of different builds and preset, thereby can both the tailor-made effect of degree of reaching body to each user.Seat with lag function can make things convenient for the student with the posture of " attentioning " " stand up ", " sitting down ".
Its two: floor space is little, and the seat can vacate nearly 2/5 area after drawing in and make way for the classroom activity space, is conducive to student's after school activity and rapid evacuation.
Its three: the utility model is rational in infrastructure, and is sturdy and durable, and materials are economized, and processing, assembling are common process, and combining structure makes things convenient for factory's streamline to produce assembly, with kit vanning storage, transportation, on-site consolidation.Relatively integrally-built like product can also be saved production, storage, transport space greatly, thereby reduces operating cost.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of knee pillow.
Fig. 3 is the structural representation at seat.
Fig. 4 is the structural representation of chair leg end.
Fig. 5 is the structural representation of back lifting gearing.
Fig. 6 is knee pillow position, seat upset schematic diagram.
Fig. 7 is that people's position view that stands up is made way at the seat.
Fig. 8 is the folding schematic diagram that draws in seat.
Fig. 9 is rocking arm buckle schematic diagram.
Figure: Table body 1? Bottom bracket 2? Bracket side lever 3? Knee pillows 4? Huff clip 5? Bracket front crossbar 6? Stent crossbar 7? Chair legs 8? Sitting board 9? Backrest 10? Knee brace pillow 11? rod Seat 12? chair legs hinged ball 13? back down nut 14? slider 15? knee pillows positioning adjustment handle 16? rocker 17? rocker arm set screws 18? knee pillow face frame 19? knee pillow face 20? backplane 21 ? clamp 22? clamp screw 23? limit fenders 24? stopper nut 25? locknut 26? stopper lever 27? locating holes 28? nylon bushing 29? tie rod 30? rod set screws 31? lower link 32? sitting board touch pad 33? inner spherical nylon lining 34? cap 35? inner spherical ring 36? wire ring 37? backrest lifting screw 38? square hole washer 39? large washer 40 backrest lift handle 41? handle set screw 42
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail: the utility model adopts combining structure to be formed by table body, support, knee pillow, seat, five parts assemblies of backrest.
Support comprises: the collet 2 among Fig. 1, support side lever 3, Hough folder 5, support front rail 6, support rear transverse rod 7,, the back lifting nut 14 in the knee pillow strut 11 among Fig. 2, the draw-bar seat 12 among Fig. 3, the hinged bulb 13 of the chair leg among Fig. 4, Fig. 5.Wherein, the hinged bulb 13 of collet 2 chair legs, chair back lifting nut 14, be welded on the support side lever 3 respectively; Knee pillow strut 11 is welded on the support front rail 6; Draw-bar seat 12 is welded on the support rear transverse rod 7; Whole support connects locking by Hough folder 5.
Table body 1 bottom is provided with the hole corresponding with collet 2, and the two is connected as a single entity with screw.
Knee pillow 4 comprises: the slide block 15 among Fig. 2, knee pillow location regulating handle 16, rocking arm 17, rocking arm holding screw 18, knee pillow top frame 19, knee pillow top 20.Wherein, rocking arm (17) is relatively fastened by two parts up and down and forms, and front end is cladding embedding-and-buckling-structured, relatively is fastened on up and down on the described support front rail 6; take form with it hingedly as hinge axis, rocking arm (17) rear portion after rocking arm holding screw (18) will fasten is fastened as a whole; 19 on knee pillow top frame be limited at rocking arm about in the of 17 two parts fasten in the formed groove position, knee pillow top 20 is arranged on the knee pillow top frame 19, described knee pillow top 20 can be made by fabric or leather or plastics or metal material; The radial direction through hole of slide block 15 1 ends axially is enclosed within to be with it in the described knee pillow support 11 and is slidingly matched, and other end screw portion passes the slotted hole of setting on the rocking arm 17 and the internal thread of knee pillow location regulating handle 16 cylindrical end settings screws.Unscrewing described knee pillow location regulating handle 16 holds its band movable slider 15 and follows knee pillow strut 11 and move axially, the radial component that slide block 15 acts on the slotted hole that arranges on the rocking arm 17 namely promotes knee pillow 4 around 6 rotations of support front rail, thereby change knee pillow top 20 residing locus, to regulate the corresponding height of itself and user's knee, distance, after putting in place, adjusting screws knee pillow location regulating handle 16 with rocking arm 17 and the 11 relative lockings of knee pillow strut, namely finish knee and rest the head on presetting of 4 locus, as shown in Figure 6: A is for adapting to leg than the elder position; C is for adapting to leg shorter one position; B is the centre position.
The seat comprises: the Internal Spherical Surface nylon bush 34 among the base plate 21 among the chair leg 8 among Fig. 1, seat 9, Fig. 3, clip 22, clip screw 23, spacing fender 24, stop nut 25, locking nut 26, spacing handle 27, nylon bush 29, drag link 30, pull bar holding screw 31, lower link 32, seat fender 33, Fig. 4, end cap 35, Internal Spherical Surface back-up ring 36, elastic spring 37.Wherein, seat 9 is provided with corresponding hole with base plate 21 the two is integrated with screw attachment; The centre of chair leg 8 horizontal positions and both sides symmetric position are provided with three groups of locating holes 28, the inner surface of nylon bush 29 is provided with locator protrusions, the outer surface two ends are provided with flange, three pairs of nylon bush 29 are aimed at respectively locating hole 28 and are fastened on the chair leg 8, two pairs of clips 22 are fastened on respectively on the nylon bush 29 of chair leg 8 above-mentioned both sides symmetric positions relatively, the hole that clip screw 23 passes on the clip 22 screws in the screwed hole that arranges on the base plate 21, locking, make seat 9 be take chair leg 8 horizontal positions as hinge axis chain connection relatively chair leg 8 horizontal positions make flip-flop movement, such as Fig. 7, shown in Figure 8.Drag link 30 is comprised of two parts, relatively be fastened on up and down on the nylon bush 29 in the middle of above-mentioned chair leg 8 horizontal positions take be with it hinge-coupled as hinge axis, the drag link after pull bar holding screw 31 will fasten about in the of 30 two parts be connected as one; Stop nut 25 outer surfaces are provided with external screw thread upper end and are provided with flange, from top to bottom pass the through hole of drag link 30 front ends behind the above-mentioned relative fastening, with locking nut 26 stop nut 25 are locked at drag link 30 front ends; Spacing handle 27 screw portions from bottom to top screw in stop nut 25, and rotary limiting handle 27 is adjusted the flip angle that its ends and the distance between the base plate 21 can limit seat 9 relative chair leg 8 horizontal positions.Seat fender 33 is enclosed within drag link 30 tail ends, and base plate 21 forms the support plane of seat with two pin joints of chair leg 8.Lower link 32 two ends respectively with drag link 30, Fig. 1 in draw-bar seat 12 hinge-coupled.End cap 35 among Fig. 4 connects firmly with chair leg 8 ends and connects, Internal Spherical Surface nylon bush 34 is installed in chair leg 8 ends, the hinged bulb 13 of its Internal Spherical Surface and chair leg matches, Internal Spherical Surface back-up ring 36 is held bulb from the cylinder position insertion of the hinged bulb 13 of chair leg from below, elastic spring 37 is installed in the groove that arranges on the end cap 34 and blocks Internal Spherical Surface back-up ring 36, so that chair leg 8 is hinge-coupled with support.
Take support as fixed bar, chair leg 8, drag link 30, lower link 32 form the seat for the four-bar mechanism of motion bar together with the seat 9, the base plate 21 that are articulated on the chair leg 8.As shown in Figure 1: turn to behave when two pin joints of base plate 21 and chair leg 8 and seat fender 33 form a support plane suitable seat of sitting up straight posture is provided with moving seat 9 behind the gravity center of human body.As shown in Figure 6: turn to behave when two pin joints of base plate 21 and chair leg 8 and spacing handle 27 ends form a support plane seat of the suitable writing posture of bending over the desk is provided with gravity center of human body's seat 9 that moves forward.As shown in Figure 7: take advantage of a situation and drive the seat and fold back and to vacate segment space and allow student's accessible " standing up " along with shank stretches its posterior leg when the student " stands up ", this moment, chair leg 8 was not more than 90 degree with the angle on ground, when " sitting down " crooked shank along with the student, the seat that is leaning on posterior leg is reinstatement under Action of Gravity Field.As shown in Figure 8: chair leg 8 swings angle with ground backward when spending greater than 90 under Action of Gravity Field, and the seat folds back to draw in makes way for the classroom activity space.
10. hoisting gear for backrest comprises: the back lifting nut 14 among Fig. 5, back lifting screw rod 38, square hole packing ring 39, large washer 40, back lifting handle 41, handle holding screw 42.Wherein, back lifting screw rod 38 screws in the back lifting nut 14 that is welded on the support side lever 3, square hole packing ring 39, large washer 40 orders are enclosed within on the square tenon of back lifting screw rod 38 upper ends setting, backrest 10 among Fig. 1 is enclosed within on the support side lever 3 and is slidingly matched with it, the square tenon that back lifting screw rod 38 upper ends arrange passes through hole and chair back lifting handle 41 joggles that arrange on the backrest 10, and handle holding screw 42 screws in the screw hole of back lifting screw rod 38 ends setting itself and back lifting handle 41 are locked.The backrest 10 that 41 drives of rotary backrest lifting handle are limited between large washer 40 and the back lifting handle 41 moves up and down to be adjusted to and the only position of user's waist along support side lever 3.
Claims (10)
1. the health protection desk chair that the seat has lag function can be adjusted in a backrest and knee pillow position, comprises support, table body, knee pillow, seat, backrest, and it is characterized in that: described support is the composite assembly structure; Described knee pillow is arranged on its locus, body below and can adjusts and preset; Described seat is by take support as fixed bar, chair leg (8), drag link (30), lower link (32) consist of together with the base plate (21), the seat (9) that are articulated on the chair leg (8) for the four-bar mechanism that motion bar forms, and described seat is that its flip angle that can overturn is can adjust also can folding back of presetting to draw in; Described backrest is arranged on its upper-lower position of support rear and can adjusts and preset.
2. the health protection desk chair that the seat has lag function can be adjusted in backrest according to claim 1 and knee pillow position, it is characterized in that: described support is to be formed with Hough folder (5) tight joint by support front rail (6), support rear transverse rod (7) and two support side levers (3), is provided with knee pillow strut (11) on the described support front rail (6); Be provided with draw-bar seat (12) on the described support rear transverse rod (7); Described support side lever (3) is the U-shaped structure, and the end of anterior vertical component is provided with collet (2); The end of posterior vertical part is provided with back lifting nut (14); The back segment of horizontal component is provided with the hinged bulb of chair leg (13).
3. the health protection desk chair that the seat has lag function can be adjusted in backrest according to claim 1 and 2 and knee pillow position, it is characterized in that: described knee pillow is for piecing together the embedding structure, comprise: slide block (15), knee pillow location regulating handle (16), rocking arm (17), rocking arm holding screw (18), knee pillow top frame (19), knee pillow top (20), wherein: rocking arm (17) is relatively fastened by two parts up and down and forms, front end is cladding embedding-and-buckling-structured, and rocking arm (17) rear portion after rocking arm holding screw (18) will fasten is fastened as a whole; Knee pillow top frame (19) be arranged on rocking arm (17) up and down two parts fasten in the formed groove position; Knee pillow top (20) is arranged on the knee pillow top frame (19), and described knee pillow top (20) can be made by fabric or leather or plastics or timber or metal material; The radial direction through hole of slide block (15) one ends axially is enclosed within to be with it on the described knee pillow strut (11) and is slidingly matched, and the internal thread that other end screw portion passes the upper slotted hole that arranges of rocking arm (17) and location regulating handle (16) the cylindrical end setting of knee pillow screws to consist of adjusts the device that presets the locus that knee rests the head on.
4. the health protection desk chair that the seat has lag function can be adjusted in backrest according to claim 3 and knee pillow position, it is characterized in that: the upper and lower two parts of rocking arm (17) in the described knee pillow relatively be fastened on described support front rail (6) upper take be with it chain connection as hinge axis.
5. the health protection desk chair that the seat has lag function can be adjusted in backrest according to claim 1 and 2 and knee pillow position, it is characterized in that: centre and the both sides symmetric position of described chair leg (8) horizontal position are provided with three groups of locating holes (28), the inner surface of nylon bush (29) is provided with locator protrusions outer surface two ends and is provided with flange, three pairs of nylon bush (29) are aimed at respectively locating hole (28) and relatively are fastened on the chair leg (8), two pairs of clips (22) are fastened on respectively on the nylon bush (29) of chair leg (8) horizontal position both sides symmetric position relatively, and seat (9) relatively chair leg (8) horizontal position is made flip-flop movement.
6. the health protection desk chair that the seat has lag function can be adjusted in backrest according to claim 5 and knee pillow position, it is characterized in that: described drag link (30) is comprised of two parts, relatively be fastened on up and down the nylon bush (29) in described chair leg (8) horizontal position centre position upper take be with it hinge-coupled as hinge axis; Seat fender (33) is enclosed within drag link (30) tail end; Stop nut (25), locking nut (26), spacing handle (27) are arranged on the front end of drag link (30); Rotary limiting handle (27) can be adjusted the flip angle that distance between its end and the base plate (21) limits seat (9) relative chair legs (8) horizontal position.
Backrest according to claim 6 and knee the pillow position can adjust the health protection desk chair that the seat has lag function, it is characterized in that: described lower link (32) two ends respectively with drag link (30), draw-bar seat (12) hinge-coupled; Inside and outside Internal Spherical Surface nylon bush (34), the end cap (35) of being respectively arranged with of described chair leg (8) end; Internal Spherical Surface nylon bush (34) is relative with Internal Spherical Surface back-up ring (36) and contain the hinged bulb of chair leg (13); Be provided with elastic spring (37) in the upper groove that arranges of end cap (35).
8. the health protection desk chair that the seat has lag function can be adjusted in backrest according to claim 7 and knee pillow position, it is characterized in that: two pin joints and the seat fender (33) of described base plate (21) and chair leg (8) can form the support plane that a suitable people sits up straight posture; Two pin joints of described base plate (21) and chair leg (8) and spacing handle (27) end can form the bend over the desk support plane of writing posture of a suitable people.
9. the health protection desk chair that the seat has lag function can be adjusted in backrest according to claim 8 and knee pillow position, it is characterized in that: described seat is rocked to backward when spending less than 90 with the ground angle and can in reinstatement under the Action of Gravity Field, can be folding rounding state when spending greater than 90 under Action of Gravity Field at chair leg (8).
10. the health protection desk chair that the seat has lag function can be adjusted in backrest according to claim 1 and 2 and knee pillow position, it is characterized in that: the easy on and off degree of described backrest is limited between back lifting handle (41) and the upper stopping means that arranges of back lifting screw rod (38), and rotary backrest lifting handle (41) can drive backrest and move up and down the position along support side lever (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220023476 CN202739212U (en) | 2012-01-17 | 2012-01-17 | Health care desk and chair with backrest and knee pillow capable of adjusting position and seat capable of moving with people |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220023476 CN202739212U (en) | 2012-01-17 | 2012-01-17 | Health care desk and chair with backrest and knee pillow capable of adjusting position and seat capable of moving with people |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202739212U true CN202739212U (en) | 2013-02-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220023476 Expired - Lifetime CN202739212U (en) | 2012-01-17 | 2012-01-17 | Health care desk and chair with backrest and knee pillow capable of adjusting position and seat capable of moving with people |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202739212U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103202603A (en) * | 2012-01-17 | 2013-07-17 | 燕鸣 | Health-care desk-chair with adjustable backrest and knee pillow positions and seat following function |
| CN104026870A (en) * | 2014-05-08 | 2014-09-10 | 湖北理工学院 | Multifunctional desk and chair |
| CN105029913A (en) * | 2015-01-14 | 2015-11-11 | 河南科技大学 | Table and chair for easy in and out |
| CN108835960A (en) * | 2018-07-23 | 2018-11-20 | 周恒� | A kind of Contiuum type desk for correcting sitting posture chair |
-
2012
- 2012-01-17 CN CN 201220023476 patent/CN202739212U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103202603A (en) * | 2012-01-17 | 2013-07-17 | 燕鸣 | Health-care desk-chair with adjustable backrest and knee pillow positions and seat following function |
| CN103202603B (en) * | 2012-01-17 | 2016-02-24 | 燕鸣 | Backrest and knee rest the head on position can adjust the therapeutic class tables and chairs that seat has lag function |
| CN104026870A (en) * | 2014-05-08 | 2014-09-10 | 湖北理工学院 | Multifunctional desk and chair |
| CN104026870B (en) * | 2014-05-08 | 2016-03-30 | 湖北理工学院 | A multifunctional desk and chair |
| CN105029913A (en) * | 2015-01-14 | 2015-11-11 | 河南科技大学 | Table and chair for easy in and out |
| CN105029913B (en) * | 2015-01-14 | 2017-08-25 | 河南科技大学 | Easy entry and exit table and chairs |
| CN108835960A (en) * | 2018-07-23 | 2018-11-20 | 周恒� | A kind of Contiuum type desk for correcting sitting posture chair |
| CN108835960B (en) * | 2018-07-23 | 2020-07-10 | 浙江树人工贸有限公司 | Desk and chair are corrected to disjunctor formula position of sitting |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130220 Effective date of abandoning: 20160224 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |