CN2148491Y - Health care desk and chair - Google Patents

Abstract

The utility model relates to a health care desk and a chair thereof for primary and secondary school students. The utility model uses the matching of an inclined chair surface and a knee support device to break through the designing structure of the existing desk and chair, and changes the traditional sitting posture mechanism of a user. Thereby, the optimum sitting posture of the body of the user is kept. Particularly for children and adolescents in the growing period, the utility model can prevent humpback, prevent and cure myopia and heterotropia, and improve the learning efficiency. The desk and the chair of the utility model are connected into a whole, and the distance between the desk and the chair and the height difference of the desk and the chair can be adjusted for adapting users of different heights. The utility model has the characteristics of novel shape, simple and particular structure, low cost, etc., and is particularly suitable for schools and families.

Description

Health care desk and chair

The utility model proposes a kind of can prevention bow-backed, control myopia and stravismus, can improve learning efficiency liftable siamesed desk and chair.Students in middle and primary schools' desk and chair for study of developmental stage is particularly suitable for growing up.

At present, domesticly aim at tables and chairs that designed for children produces seldom, and the style dullness, family's desk and chair almost is blank, and most of family allows child with adult's tables and chairs reading and writing on the basis of the existing conditions no matter how simple and crude; Even lie prone and on little table or taboret, do one's assignment, this often causes adverse consequences:

(1) chair is low excessively, and thigh and calf is acute angle, and just buttocks is stressed is sitting on the stool, and is not only very easily tired, and backbone also is in case of bending, and the time makes the muscle of backbone both sides and ligament function lose bar and form the humpback (see figure 2) for a long time; Chair is too high, unsettled can not the playing a supporting role of two foots, and blood vessel, nerve that thigh is puted forth effort a side are in by pressure condition, influence the lower limb blood circulation, the tired (see figure 3) of numbness of lower limbs occurs.

(2) difference between table top and chair top is excessive, and two elbows can not drop on the desktop naturally during reading and writing, just can towering both shoulders or right shoulder height hunch tiltedly low, or the left elbow of resting the head on, this both can't guarantee rational vision yardstick, easily caused myopia, and will cause the scoliosis (see figure 4); Otherwise difference between table top and chair top is too small, and children need bend down body and write, and occurs bowing, bends forward the back of the body and lean forward from the waist spinal curvature, if things go on like this causes bow-backed (see figure 5); In addition, pitch before often table along on, also can oppress internal organ, influence breathing, blood circulation and breastbone growth.

(3) tables and chairs split level interval is uncertain, and positive spacing is excessive the sitting posture of the back of the body also can to occur bending to bend forward with person's forward lean, impair grow up after the straight and upright vigorous and graceful bodily form of back.

(4) even tables and chairs are suitable mutually with human body, but common seat is horizontal, this traditional sitting posture makes femur be in level substantially, shin bone and fibula are sagging naturally, at this moment, backbone will directly bear body weight, waist disk pressurized, lumbar vertebrae cantle, thoracic vertebrae and cervical vertebra lean forward and are case of bending, and its result body weight on the one hand acts on backbone and causes physical fatigue, decreased attention learning efficiency low; Also be to cause one of bow-backed and near-sighted major reason (see figure 6) on the other hand.Even the common tables and chairs of lifting are arranged, himself does not possess the usefulness that actively corrects faulty sitting posture yet, and just the carry-on passively High variation of passiveness is adjusted size.

(5) common desk and chair does not have bookshelf, when writing book is lain in desktop and do the top, at this moment written and sight line out of plumb, stroke extends to the formed visual angle of eyes and does not reach maximum in the word, the image that stroke forms on retina is just unintelligible, thereby need bow to the neck that protracts and differentiate writing, thereby cause eye fatigue and cervical vertebra bending; Right and left eyes vision yardstick is also inconsistent in addition, and two crystalline lenses are regulated also just different, and this not only makes eyes very easily tired, also can cause the right eye esotropia.

Be necessary the novel school desk and chair that children grow up and grow that meets of the science of developing for this reason.

The purpose of this utility model provides a kind of energy prevention hunchback, control myopia and looks side ways liftable siamesed desk and chair.Not only make the user can keep the best gesture position of sitting, pre-myopia prevention and hunchback help physical and mental health; Make the people take health and unfold, feel comfortable, help concentrating one's energy, improve learning efficiency; And can be suitable for different heights variations; Also want safety and firmness, low cost.

In order to achieve the above object, the utility model is broken existing tables and chairs design general layout, adopts ingenious and simple and direct mechanism, on the basis of research children's development characteristics and a series of data, proposes a kind of practical plan of science economy: the tables and chairs one; Tables and chairs relative spacing and relative altitude can be adjusted; The inclination seat with support knee device antithesis and cooperate; Slant desktop top is provided with folding bookcase; The bottom is provided with the stationery basket.Desktop and table leg are "T"-shaped structure, and table leg portion is provided with to the knee device, it with table portion be "

" the shape structure.The backrest of chair portion, seat and chair leg be "

" the shape structure.The main frame of tables and chairs be "

" the shape steel-wood structure.

The utility model is compared with existing tables and chairs has following function and good effect:

1. the utility model, be equipped with to the knee device table leg middle and lower part, is equipped with on the chair leg and the angled inclination seat of horizontal plane.Support the knee device and cooperate in the face of even, make the people change tradition seat gesture and be the gesture of squatting, make the stressed decomposition (see figure 7) of its backbone with tilting chair, gravity center of human body's reach, for keeping one's balance, backbone is straight and upright state naturally.This seat gesture attitude can be prevented hunchback for children, keeps the vigorous and graceful bodily form; And can keep reasonable sighting distance, as long-term use, the effect of control and rectification pseudo-myopia is arranged; Simultaneously can also make the people take health and unfold, reduce fatigue, help the student to concentrate one's energy, improve results of learning.

2. the utility model, the tables and chairs disjunctor by the guiding mechanism between the elevating mechanism between desktop and table leg and seat and chair leg, can be adjusted the relative spacing and the discrepancy in elevation of desktop seat, makes tables and chairs and stature fit, thereby has avoided irrational sitting posture and sighting distance.Like this, be not only applicable to all ages and classes student and use, needn't change tables and chairs because of height changes, and be suitable for the needs of different users's special type.

3. the utility model is provided with folding bookcase on the desktop.Adjustable angle and can make books be placed on the user dead ahead can prevent, correct stravismus, written in addition can be rectangular with sight line, make literal or the picture image on retina the most clear, remove eye fatigue and cervical vertebra bending.

4. the utility model has adopted metal truss stationery indigo plant, and table portion and chair portion all adopt two leg structures, saves nearly 1/3rd raw material than ordinary steel timber structure desk and chair, and cost is low.

In addition, also have moulding uniqueness, characteristics such as safe and reliable, this Health care desk and chair all has positive effect to the good behavior custom of cultivating the student, the prevention and the mental health of the posterior spinal disease of growing up.

Below in conjunction with drawings and Examples, the utility model is described in further detail:

Fig. 1 is a three-dimensional structure diagram;

Fig. 2 crosses the low gesture position schematic diagram of sitting for the chair stool;

Fig. 3 is the too high seat gesture of a chair stool position schematic diagram;

Fig. 4 is the excessive sitting posture figure of difference between table top and chair top;

Fig. 5 is the too small sitting posture figure of difference between table top and chair top;

Fig. 6 is that tradition is sat gesture human body stress schematic diagram;

Fig. 7 sits gesture and human body stress's schematic diagram for using these tables and chairs;

Fig. 8 is that bookshelf is connected partial side view with desktop;

Fig. 9 is that table leg is connected with desktop and elevating mechanism partial side view;

Figure 10 is connected with table leg and guiding mechanism partial side view for supporting the knee device;

Figure 11 is that the chair back, seat are connected with the chair leg and compound guiding mechanism partial side view;

The utility model by the T of table portion, support knee device D and three of the J of table portion partly form:

The T of table portion mainly forms (seeing Fig. 8,9) by desktop (1), bookshelf (2), fixing card (3), stationery basket (9), T shape cage plate (7), table leg (8) and bolt (10).Bookshelf (2) is fixed on the desktop (1) by the fixing screw (6) that blocks (3), and the guide groove (l) on the bookshelf (2), guide groove (b) axle (4), the axle (5) on fixing card (3) done relative slippage, can finish opening and folding of bookshelf; When axle (5) moved to guide groove (b) left end, axle (4) just can enter in the bayonet socket (g) of guide groove (l) lower end, finishes opening of bookshelf; When upper end, the axle (5) that moves to guide groove (l) when axle (4) moves to guide groove (b) right-hand member, finish the folding (see figure 8) of bookshelf.Spring clip (28,29) is housed on the bookshelf.Stationery basket (9) is fixed on the bottom surface (seeing Fig. 1,9) of desktop (1) by screw (11).T shape cage plate (7) is fixedlyed connected with desktop (1) by bolt (12); Table leg (8) and T shape cage plate (7) by hole (c) on the T shape cage plate (7) and hole (d) relative displacement on the table leg (8), are realized the lift adjustment of desktop for being slidingly connected, and are locked with bolt (10).Because table leg (8) to the oblique angle of chair inclination (a), also can be realized the adjustment (seeing Fig. 1,9) of horizontal range between tables and chairs when adjusting height of table top.

Support knee device D, mainly by fixed mount (27), support lap board (26) and support kneepad (24) etc. and form (see figure 10).Support to be equipped with above the lap board (26) and also be fixed on the fixed mount (27) with screw (25) to kneepad (24).Fixed mount (27) can be separately fixed in the hole (h), hole (o) and hole (k) of table leg (8) by bolt (13), to obtain to support the differing heights of knee device.Support lap board (26) horizontal by β angle (seeing Fig. 1, Figure 10).

The J of chair portion mainly constitutes (seeing Fig. 1, Figure 11) by seat plate (19), chair cushion (17), backing tube (16), backing cushion (22), T shape cage plate (14) and chair leg (15).Chair cushion (17) is housed above the seat plate (19), fixing below by screw (18) and backing tube (16), and constitute chair top.T shape cage plate (14) and chair leg (15) are for being slidingly connected, can be by hole (f) on the T shape cage plate (14) and hole (e) relative displacement on the chair leg (15), finish the high lift adjustment of chair, use bolt (20) to be locked at last, and formation chair shank branch, because the chair leg when the adjustment chair is high, also can be realized the adjustment of chair and desk level interval to a table portion inclination angle (θ).Being connected between T shape cage plate (14) and backing tube (16) that chair top and chair shank divide carried out, by being fixed on bolt (21) on the T shape cage plate (14) along guide runner (w) relative displacement of backing tube (16) lower end, realize the adjustment of chair table spacing, use bolt (21) to be locked then, again since seat to the table portion angle (r) that tilts, also can realize chair during adjustment and support the knee device apart from adjustment, and seat and desktop, seat and to the inching (seeing Figure 11) of relative altitude between the knee device.

In addition, table leg (8) is connected for weldering with chair leg (15); Two chair legs connects by grade beam (23) weldering; Backing cushion (22) (seeing Fig. 1, Figure 11) is equipped with on backing tube (16) top.

Claims (6)

1, a kind of prevention is bow-backed, control is near-sighted and stravismus, and liftable health care desk and chair is characterized in that:

[1] main frame of tables and chairs adopt Contiuum type "

" the shape structure, seat tilts and supports the appearance of knee device antithesis;

[2] table leg (8) is horizontal by a angle, be equipped with on it one horizontal by the β angle support leg device D, adopt adjustable fixedlying connected between D and table leg (8), constitute to knee device elevating mechanism;

[3] seat plate (19) tilts, horizontal by the γ angle, and with backing tube (16), T shape cage plate (14) and chair leg (15) between adopt adjustable fixedlying connected, the compound guiding mechanism of composition chair portion;

[4] adopt adjustable fixedlying connected between the T shape cage plate (7) of table dormant panel (1) usefulness and table leg (8), constitute table portion elevating mechanism;

[5] front end of desktop (1) is equipped with the bookshelf (2) that can fold;

[6] metal truss stationery basket (9) is equipped with in desktop (1) bottom surface.

2, health care desk and chair as claimed in claim 1, it is characterized in that "

" shape piece desk and chair main frame by the T shape cage plate (7) of (c) with holes, have hole (d, h, o, k) table leg (8), support knee device D, have hole (e) chair leg (15), have the T shape cage plate (14) in hole (f) and have guide groove (w) backing tube (16) formation.

3, health care desk and chair as claimed in claim 1 is characterized in that being made of the table leg (8) that has hole (d, h, o, k), bolt (13) and fixed mount (27) to knee device elevating mechanism, supports lap board (26) horizontal by the β angle.

4, health care desk and chair as claimed in claim 1, it is characterized in that chair leg (15), bolt (20) that the compound guiding mechanism of chair portion has the backing tube (16) of guide groove (w), the T shape cage plate (14) that has hole (f), bolt (21) by the lower end and has a hole (e) constitute, chair leg (15) is horizontal by the θ angle.

5, Health desk as claimed in claim 1 is characterized in that portion's elevating mechanism is made of the T shape cage plate (7) that has hole (c), the table leg (8) that has hole (d) and bolt (10).

6, health care desk and chair as claimed in claim 1, it is characterized in that can folding bookcase the fixedly card (3) of axle (4), axle (5) being arranged and having the bookshelf (2) and the spring clip (28 of guide groove (b), guide groove (l) by riveting, 29) constitute, the lower end of guide groove (l) has bayonet socket (g).

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