CN102217851A

CN102217851A - Liftable desk used in primary school

Info

Publication number: CN102217851A
Application number: CN2011101652511A
Authority: CN
Inventors: 张晟廷
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-07
Filing date: 2011-06-07
Publication date: 2011-10-19

Abstract

The invention discloses a liftable desk used in a primary school. An upper part and a lower part of the desk are connected in a split mode; the height of the desk can be regulated at random according to the height and the sitting posture of a student, so that an optimal sitting height can be supplied to each student; and by adding metal component groups on the connection part of the upper part and the lower part of the desk, the height of the desk can be conveniently regulated, the internal stress generated by pressing a part of a composite board can be effectively reduced, and the service life of the desk is prolonged. The upper part comprises an upper board 1, a backrest board 2, a left side board 31, a right side board 32 and a bottom board 4 and the lower part comprises a left board leg 81, a right board leg 82 and a footrest board 7, wherein the left side board 31 and the left board leg 81 are connected through 4 to 8 metal component groups 5, preferably 6 metal component groups 5; and the right side board 32 and the right board leg 82 are connected through 4 to 8 metal component groups 5, preferably 6 metal component groups 5.

Description

A kind of liftable primary school desk

Technical field

The present invention relates to a kind of school desk, a kind of liftable primary school desk that is meant especially that the pupil uses.

Background technology

From first grade of primary school to six grade, student's health is constantly growing tall, and when graduating from primary school after 105 centimeter length to six year when average height was entered a school from 6 one full year of life 150 centimetres, average height differs 45 centimetres, specific to also having bigger individual height differences among the student.This just not only requires not of the same grade section desk height is different, even the desk in the same class also should adjust according to student's actual height.Otherwise, do not conform to the desk of student's body development demand, the not only let us study that is difficult to concentrate one's energy at school the time, even have influence on growing up healthy and sound of our health.Most economical effective industrialization way is: the Liftable type separately-loaded is adopted in desk top and lower part.

Summary of the invention

The purpose of this invention is to provide a kind of liftable primary school desk, the split type of attachment is adopted in the top and the lower part of desk, can arbitrarily adjust the height of desk, can both obtain optimal sitting posture height to reach each student according to student's height sitting posture.By setting up the hardware group at the connecting portion of desk top and lower part, can regulate the desk height easily, alleviate composite plate local compression internal stress effectively, prolong desk service life.

The present invention adopts following technical scheme: a kind of liftable primary school desk, top comprises upper plate 1, back backup plate 2, left plate 31, right plate 32 and base plate 4, the lower part comprises left plate pin 81 and right panel pin 82 and steps on sole 7, be connected with 4 to 8 groups of hardware groups 5 between described left plate 31 and the left plate pin 81, be preferably 6 groups of hardware groups 5 and connect; Also be connected between described right plate 32 and the right panel pin 82, be preferably 6 groups of hardware groups 5 and connect with 4 to 8 groups of hardware groups 5; Described left plate 31 and right plate 32 all have 53, two adjacent grooves of groove 53 distance more than two respectively separately at 10 to 30 centimetres, are preferably 16 centimetres; The length of every groove 53 is preferably 160 centimetres between 60 to 240 centimetres; The width of every groove 53 is preferably 8 centimetres at 6 to 12 centimetres; Described left plate pin 81 and right panel pin 82 all have the above through hole of arranging 58 of two rows separately respectively, and every row is 2 to 8, is preferably 5; Two arrange adjacent through hole 58 distances at 10 to 30 centimetres, are preferably 16 centimetres; The longitudinal separation distance of per two through holes 58 is preferably 80 centimetres between 40 to 120 centimetres; The diameter of each through hole 58 is preferably 8 centimetres at 6 to 12 centimetres.

As further improvement, described every group of hardware group 5 comprises screw 14, two broadside packing rings 15, spring washer 17 and acorn nuts 18, the first end of the cruciform slot screw of screw 14 and a broadside packing ring 15 are exposed to the desk outside and present 51 shapes, and another broadside packing ring 15, spring washer 17 and acorn nut 18 are exposed to the desk inboard and present 52 shapes.

As further improvement, the connected mode that left plate pin 81 and right panel pin 82 adopts three kinds of height requires with the sitting posture of student that adapts to section in the same year not:

Two of a, left plate pin 81 and right panel pin 82 arranged in the through hole of putting 58, select for use the through hole 58 of below to be connected with corresponding groove 53 in the right plate 32 with left plate 31, this connected mode is fit to one grade and second grade pupil, and groove 53 is more suitable for the desk height is accurately adjusted to the optimal height of each student;

Two of b, left plate pin 81 and right panel pin 82 arranged in the through hole of putting 58, through hole 58 in the middle of selecting for use is connected with corresponding groove 53 in the right plate 32 with left plate 31, this connected mode is fit to three grades and senior class pupil, and groove 53 is more suitable for the desk height is accurately adjusted to the optimal height of each student;

Two of c, left plate pin 81 and right panel pin 82 arranged in the through hole of putting 58, select for use the through hole 58 of top to be connected with corresponding groove 53 in the right plate 32 with left plate 31, this connected mode is fit to five grades and six grades pupils, and groove 53 is more suitable for the desk height is accurately adjusted to the optimal height of each student.

As further improvement, the external diameter of broadside packing ring 15 is 2 to 3 times of its endoporus, and thickness is preferably 1 millimeter at 0.5 to 1.5 millimeter.The effect of broadside packing ring 15 is the edge internal stress that can effectively alleviate groove 53 and through hole 58, increases the service life.

The effect of spring washer 17 prevents that acorn nut from relaxing because of vibrations, because of pupil's strength is little, often need drags desk and be easy to generate vibration.

The top that upper plate 1, back backup plate 2, left plate 31, right plate 32 and base plate 4 are formed, connection each other can be disposable die cast, or adopt the high density composite plate to carry out stealth to be fixedly connected whole top as desk, groove 53 is used for being connected with through hole 58.

A left side plate pin 81 and right panel pin 82 and step on the lower part that sole 7 is formed, connection each other can be disposable die cast, or adopts the high density composite plate to carry out stealth to be fixedly connected the whole lower part of desk that is.The setting of plate pin groove 85 is to avoid desk to rock, and through hole 58 is used for connecting groove 53.

It is for the student stands up, legs and feet are turned round conveniently when sitting down that circular arc 37 positions of left plate 31 and right plate 32 and the pairing of circular arc 87 positions of left plate pin 81 and right panel pin 82 are provided with.

The invention has the beneficial effects as follows whole top and the lower part assembly type of adopting of desk, connect by multiple height mode that to adapt to not of the same grade section sitting posture of student requirement, health is economical again with hardware group 5.Groove 53 is more suitable for the desk height is accurately adjusted to the optimal height of each student.Select for use the benefit of broadside packing ring to be: to reduce the edge internal stress of groove 53 and through hole 58, avoided the cruciform slot screw head on the screw 14 directly to be absorbed in the composite plate easily, caused the screwing force of acorn nut 18 to disappear and loosening the inefficacy because of diameter is less; Select for use outside acorn nut 18 is presented on smooth sphere, avoided metallic bur power to scratch student's thigh.The present invention is novel, can repeated use for convenience detach and be convenient to make and promote, and this grows up healthy and sound for pupil's total number of persons of the nearly one hundred million in the whole nation, and its action effect is huge.

Description of drawings

Fig. 1 is a top of the present invention profile perspective view;

Fig. 2 is a lower part of the present invention profile perspective view;

Fig. 3 is monnolithic case perspective view of the present invention (being fit to three grades and senior class pupil);

Fig. 4 is monnolithic case front elevation of the present invention (being fit to three grades and senior class pupil);

Fig. 5 is monnolithic case side view of the present invention (being fit to three grades and senior class pupil);

Fig. 6 is monnolithic case front elevation of the present invention (being fit to one grade and second grade pupil);

Fig. 7 is monnolithic case side view of the present invention (being fit to one grade and second grade pupil);

Fig. 8 is monnolithic case front elevation of the present invention (being fit to five grades and six grades pupils);

Fig. 9 is monnolithic case side view of the present invention (being fit to five grades and six grades pupils);

Figure 10 is the partial enlarged drawing of hardware group 5 when connection is installed among the present invention.

The specific embodiment

A kind of liftable primary school desk, top comprises upper plate 1, back backup plate 2, left plate 31, right plate 32 and base plate 4, the lower part comprises left plate pin 81 and right panel pin 82 and steps on sole 7, is connected with 6 groups of hardware groups 5 between described left plate 31 and the left plate pin 81; Also be connected between described right plate 32 and the right panel pin 82 with 6 groups of hardware groups 5; It is 16 centimetres that described left plate 31 and right plate 32 all have 53, two adjacent grooves of two grooves, 53 distances separately respectively, and all there are circular arc 83 transition the inboard below of left plate 31 and right plate 32; The length of every groove 53 is 160 centimetres; The width of every groove 53 is 8 centimetres; And left plate pin 81 and right panel pin 82 all have two through holes 58 of arranging and putting separately respectively, and every row has 5, and all there are circular arc 83 transition top, the outside of left plate pin 81 and right panel pin 82; Through hole 58 distances that two rows are adjacent are 16 centimetres; The longitudinal separation distance of per two through holes 58 is 80 centimetres; The diameter of each through hole 58 is 8 centimetres.

The used desk of student with three grades and senior class stage is an example, and the installation steps that top is connected with the lower part are as follows:

Get 12 groups of hardware groups 5, every group of hardware group 5 installed order and is: a M8 screw 14, put a broadside packing ring 15 (20 millimeters of external diameters earlier, 8 millimeters of endoporus, 1 millimeter of thickness), with six groups of six through holes 58 that pass the middle part of left plate pin 81 wherein, pass two grooves 53 of left plate 31 more respectively, putting another broadside packing ring 15, spring washer 17 and acorn nut 18 successively on the screw 14 one by one, and tightening with small wrench.Six through holes 58 that use the same method and pass the middle part of right panel pin 82 with other six groups, pass two grooves 53 of right plate 32 more respectively, putting another broadside packing ring 15, spring washer 17 and acorn nut 18 successively on the screw 14 one by one, and tightening with small wrench.

Claims

1. liftable primary school desk, top comprises upper plate (1), back backup plate (2), left plate (31), right plate (32) and base plate (4), the lower part comprises left plate pin (81) and right panel pin (82) and steps on sole (7), it is characterized in that: be connected with 4 to 8 groups of hardware groups (5) between described left plate (31) and the left plate pin (81), be preferably 6 groups of hardware groups (5) and connect; Also be connected between described right plate (32) and the right panel pin (82), be preferably 6 groups of hardware groups (5) and connect with 4 to 8 groups of hardware groups (5); Described left plate (31) and right plate (32) all have the groove (53) more than two separately respectively, and two adjacent grooves (53) distance is preferably 16 centimetres at 10 to 30 centimetres; The length of every groove (53) is preferably 160 centimetres between 60 to 240 centimetres; The width of every groove (53) is preferably 8 centimetres at 6 to 12 centimetres; Described left plate pin (81) and right panel pin (82) all have the above through hole of arranging (58) of two rows separately respectively, and 2 to 8 of every rows are preferably 5; Two arrange adjacent through hole (58) distance at 10 to 30 centimetres, are preferably 16 centimetres; The longitudinal separation distance of per two through holes (58) is preferably 80 centimetres between 40 to 120 centimetres; The diameter of each through hole (58) is preferably 8 centimetres at 6 to 12 centimetres.

2. liftable according to claim 1, a kind of primary school desk, it is characterized in that: described every group of hardware group (5) comprises screw (14), two broadside packing rings (15), spring washer (17) and acorn nut (18), the first end of cruciform slot screw of screw (14) and a broadside packing ring (15) are exposed to the desk outside and present (51) shape, and another broadside packing ring (15), spring washer (17) and acorn nut (18) are exposed to the desk inboard and present (52) shape.