CN110946398A

CN110946398A - Desk and chair for student capable of preventing myopia and correcting sitting posture

Info

Publication number: CN110946398A
Application number: CN201911285273.4A
Authority: CN
Inventors: 徐志华
Original assignee: Zhejiang Xinxin Instrument Co Ltd
Current assignee: Zhejiang Xinxin Instrument Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-04-03

Abstract

The invention relates to a desk and chair for students, which can prevent myopia and correct sitting posture, comprising: the desk comprises a desk frame and an operating board, wherein the desk frame comprises two parallel first supporting legs and second supporting legs, connecting rods are arranged between the first supporting legs and the second supporting legs, a first supporting block is arranged at the bottom end of each first supporting leg, a first mounting seat is arranged at the top end of each first supporting leg, a second supporting block is arranged at the bottom end of each second supporting leg, a second mounting seat is arranged at the top end of each second supporting leg, the upper surface of the first mounting seat is connected to one side of the operating board, the upper surface of the second mounting seat is connected to the opposite side of the first supporting leg, a desk drawer is arranged on the bottom surface of the operating board, an anti-myopia device is arranged on the bottom surface of the operating board, the anti-myopia device can rotate into the desk drawer under the non-use state, and the anti-myopia device can rotate out.

Description

Desk and chair for student capable of preventing myopia and correcting sitting posture

Technical Field

The invention relates to the field of desk and chair for students, in particular to a desk and chair for students, which can prevent myopia and correct sitting postures.

Background

Education is an important motive power of society, the education cause of China is explored for many years, burden reduction and quality education are advocated at present, actually, many extraclass interesting classes are available for children besides learning the knowledge in books, and the burden of primary school students is more serious because the complete change cannot be carried out at a time due to the duck-filling education all the time.

The interest class outside class takes a lot of time, parents can leave many coaching classes for the student's study without falling behind, which causes the body of the pupil in class to be tired, the sitting posture is not correct in class, and the short-distance reading for a long time causes the myopia to be the more aged, which is a social problem to be continuously solved.

Therefore, the invention provides a desk and chair for students, which can prevent myopia and correct sitting postures.

Disclosure of Invention

The invention provides a desk and chair for students, which can prevent myopia and correct sitting posture to solve the problems of the prior art, and comprises:

the desk comprises a desk frame and an operating board, wherein the desk frame comprises two parallel first supporting legs and second supporting legs, connecting rods are arranged between the first supporting legs and the second supporting legs, a first supporting block is arranged at the bottom end of each first supporting leg, a first mounting seat is arranged at the top end of each first supporting leg, a second supporting block is arranged at the bottom end of each second supporting leg, a second mounting seat is arranged at the top end of each second supporting leg, the upper surface of the first mounting seat is connected to one side of the operating board, the upper surface of the second mounting seat is connected to the opposite side of the first supporting leg, a desk drawer is arranged on the bottom surface of the operating board, an anti-myopia device is arranged on the bottom surface of the operating board, the anti-myopia device can rotate into the desk drawer under the non-use state, and the anti-myopia device can rotate out.

On the basis of the above scheme and for the preferred scheme of the above scheme, first landing leg has first fixed leg and can be at the first flexible leg of first fixed leg inner wall gliding, first mount pad is connected to the top of first flexible leg, and the second landing leg has the fixed leg of second and installs the flexible leg of second on the fixed leg of second, the second mount pad is connected to the top of the flexible leg of second, first telescoping device has in the first mount pad, second telescoping device has in the second mount pad, has the head rod between first telescoping device and the second telescoping device.

On the basis of the above scheme and for the preferable scheme of the above scheme, the first telescoping device and the second telescoping device have the same structure, the first telescoping device comprises a first umbrella-shaped gear which is vertically placed, a second umbrella-shaped gear which is meshed with the first umbrella-shaped gear, and a screw rod which is fixed on the second umbrella-shaped gear, the screw rod penetrates through the first telescoping leg, the upper end part and the lower end part of the first telescoping leg are in threaded connection, it is worth saying that a rocker is arranged on the first mounting seat, the rocker is connected with the first umbrella-shaped gear, the rocker drives the first umbrella-shaped gear to rotate by rotating the rocker, the first umbrella-shaped gear drives the second umbrella-shaped gear to rotate, the screw rod rotates along with the rotation of the second umbrella-shaped gear, the first telescoping leg moves up and down to complete the height adjustment of the first support leg, the first connecting rod ensures that the second telescoping device and the first telescoping device move synchronously, namely, the second supporting leg and the first supporting leg realize synchronous extension and retraction.

On the basis of the scheme and for the preferable scheme of the scheme, the myopia prevention device is provided with an installation frame and a support table, one end of the installation frame is fixed on the lower surface of the operation plate, the other end of the installation frame is hinged with the support table, the support table has two working states, and the working state is that the support table vertically upwards supports the chin of a user, so that pupils can keep the distance between eyes and a table top at a position of one ruler to prevent myopia; when the support table is in an empty state, the support table rotates into the table drawer.

On the basis of the scheme, the height of the supporting platform is adjustable, the supporting platform is provided with a supporting base hinged to the mounting frame, an adjusting device installed on the supporting base, and a supporting platform installed on the supporting device, the adjusting device is provided with an adjusting rod and an adjusting nut installed on the adjusting platform and used for fixing the adjusting rod, and when the adjusting device is used, the adjusting nut is screwed to achieve stretching of the first adjusting rod, so that the supporting platform moves up and down.

On the basis of the above scheme and as a preferable scheme of the above scheme, the operation panel is provided with an inclination device for adjusting an inclination angle of the operation panel with a horizontal plane, the operation panel comprises an operation bottom plate fixed on a first fixed mounting seat and a second fixed mounting seat, an operation panel and an inclination device, strip-shaped holes are respectively arranged on two sides of the operation bottom plate, the inclination device is provided with a first inclination device arranged in the first mounting seat and a second inclination device arranged in the second mounting seat, the first inclination device and the second inclination device are identical in structure, a second connecting rod is arranged between the first inclination device and the second inclination device, specifically, the second inclination device comprises a gear, a rack and an inclination rod, the gear is arranged in the second mounting seat, the rack is meshed with the gear, and one end of the inclination rod is hinged to the lower surface of the operation panel through the strip-shaped hole, the other end is hinged on the rack, preferably, the adjusting device further comprises an adjusting knob, and the adjusting knob penetrates through the second mounting seat to be connected with the gear.

On the basis of above-mentioned scheme and to the preferred scheme of above-mentioned scheme, be equipped with on the back operating panel and put the cup groove, put the thing groove, the student of being convenient for places, brings more experience, is equipped with the mounting groove on the hang plate, places the board in the mounting groove, place the board including install in the mounting groove place the pole and with place the pole top hinge be connected put the thing board, the bottom of putting the thing board is equipped with the dog.

On the basis of the scheme, and according to the preferable scheme of the scheme, hooks are arranged on two sides of the desk drawer, so that clothes of students can be hung conveniently.

On the basis of the scheme and for the preferable scheme of the scheme, the storage basket is installed between the first fixing leg and the second fixing leg, and the storage basket is detachably installed.

The utility model provides a liftable seat, lift seat have adjustable chair leg, seat, back, the seat has arc seat and improves user's comfort level, the back has arc portion of leaning on, and when user's back laminating back, the arc portion of leaning on makes the laminating portion of more of user's back increase the comfort level for the regulation of cooperation above-mentioned desk is adjusted, and the student is more comfortable in the use.

Compared with the prior art, the invention has the outstanding and beneficial technical effects that:

1. the support table vertically supports the chin of the user upwards, so that the pupils can keep the distance between the eyes and the table top at a certain position to prevent myopia.

2. The schoolbag is placed in the storage basket, so that the articles of students can be conveniently placed, and the schoolbag is more concise in learning.

3. The arc leans on the portion to make the laminating of user's back more lean on the portion to increase the comfort level for adjust in the regulation of cooperation above-mentioned desk, student's more comfortable in the use.

4. The height of operation panel and ground can be adjusted to the liftable formula design of first landing leg and second landing leg, is applied to the student of different heights, and the user experiences the effect better in the use of reality.

The support legs are adjustable, the height of the operating panel from the ground can be adjusted, the support legs are matched with a liftable chair to be used by people with different heights, students with different heights can adjust the proper height by themselves, pupils can place the chin of the pupils on the support table, the distance between eyes and books can be guaranteed to be a reasonable distance of one ruler during reading, myopia of pupils can be effectively placed, the support table can be adjusted according to the heights of the support tables with different heights, and the actual using effect is improved.

The myopia prevention device can prevent the pupils from being myopic and form a good sitting posture habit, and correct the incorrect sitting posture of the pupils.

Drawings

FIG. 1 is a perspective view of a desk;

FIG. 2 is a perspective view of a desk;

FIG. 3 is a schematic sectional view of a slide groove in the second embodiment;

FIG. 4 is a perspective view of the placement board;

FIG. 5 is a schematic view of a tilting device;

FIG. 6 is a schematic view of a telescoping device;

fig. 7 is a perspective view of a liftable seat.

In the figure: 111. a first telescoping leg; 112. a first fixed leg; 1131. a rocker; 1132. a first bevel gear; 1133. a second bevel gear; 1134. a screw; 121. a second telescoping leg; 122. a second fixed leg; 13. a connecting rod; 14. a first support block; 15. a second support block; 16. a storage basket; 211. operating the bottom plate; 2111. a strip-shaped hole; 212. an operation panel; 2121. an inclined plate; 21211 placing cup groove; 21212. a storage groove; 2122. a hand supporting plate; 21221. a posture correction slot; 221. an inclined lever; 222. a gear; 223. a rack; 224. adjusting a knob; 231. a mounting frame; 2321. a support base; 2322. adjusting a rod; 2323. adjusting the nut; 233. a saddle; 2331. a posture correction slot; 24. a desk drawer; 241. hooking; 251. a sliding groove; 252. a limiting groove; 26. placing the plate; 261. placing a rod; 262. a storage plate; 263. a stopper; 31. a first mounting seat; 32. a second mounting seat; 50. lifting the seat; 51. the chair legs can be adjusted; 52. a seat portion; 521. an arc-shaped seat part; 53. a backrest; 531. an arc-shaped leaning part.

Detailed Description

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step, based on the given embodiments, fall within the scope of protection of the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

In the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.

The technical solution of the present invention is further described below with reference to the following examples and accompanying fig. 1-7.

The first embodiment is as follows:

as shown in fig. 1, 2, 4, 5, 6 and 7, the invention relates to a student desk and chair capable of preventing myopia and correcting sitting posture, which comprises:

the desk comprises a desk frame and an operating board, wherein the desk frame comprises two first supporting legs arranged in parallel and a second supporting leg, a connecting rod 13 is arranged between the first supporting legs and the second supporting legs, a first supporting block 14 is arranged at the bottom end of each first supporting leg, a first mounting seat 31 is arranged at the top end of each first supporting leg, a second supporting block 15 is arranged at the bottom end of each second supporting leg, a second mounting seat 32 is arranged at the top end of each second supporting leg, the upper surface of the first mounting seat 31 and the upper surface of the second mounting seat 32 are connected to one side of the operating board, the upper surface of the second mounting seat is connected to the opposite side of the operating board, a desk drawer 24 is arranged on the bottom surface of the operating board, an anti-myopia device is arranged on the bottom surface of the operating board, and can rotate into the desk drawer 24 under the non-use state, and rotate.

The height difference exists among the pupils at present, the height difference exists among the pupils at the same grade, the height difference also exists among the pupils at the same grade at different ages, the pupils are in an important period of body development, and it is particularly important to develop a good sitting posture, the traditional desk is in a fixed height, the height difference can not achieve different adjustment effects among different people at different grades, therefore, the first supporting leg and the second supporting leg of the invention are adjustable lifting type, the first supporting leg is provided with a first fixed leg 112 and a first telescopic leg 111 which can slide on the inner wall of the first fixed leg 112, the top end of the first telescopic leg 111 is connected with a first mounting seat 31, the second supporting leg is provided with a second fixed leg 122 and a second telescopic leg 121 which is mounted on the second fixed leg 122, the top end of the second telescopic leg 121 is connected with a second mounting seat 32, a first telescopic device is arranged in the first mounting seat 31, the second mounting seat 32 has a second telescopic device therein, and a first connecting rod 13 is disposed between the first telescopic device and the second telescopic device.

In detail, the first expansion device and the second expansion device have the same structure, the first expansion device includes a first umbrella gear 1132 vertically placed, a second umbrella gear 1133 engaged with the first umbrella gear 1132, and a screw 1134 fixed on the second umbrella gear 1133, the screw 1134 penetrates through the first expansion leg 111, and the upper and lower end portions of the first expansion leg 111 are in threaded connection, so to facilitate the rotation of the first umbrella gear 1132, a rocker 1131 is arranged on the first mounting seat 31, the rocker 1131 is connected with the first umbrella gear 1132, the rotation of the first umbrella gear 1132 is driven by rotating the rocker 1131, the first umbrella gear 1132 drives the rotation of the second umbrella gear 1133, the screw 1134 rotates along with the rotation of the second umbrella gear 1133, the first expansion leg 111 moves up and down to complete the height adjustment of the first leg, the first connecting rod 13 ensures that the second expansion device and the first expansion device move synchronously, namely, the second supporting leg and the first supporting leg realize synchronous extension and retraction. The cooperation can flexible chair, is applicable to the student of different heights and uses.

In detail, the myopia prevention device is provided with a mounting frame 231 and a support table, one end of the mounting frame 231 is fixed on the lower surface of the operation plate, the other end of the mounting frame 231 is hinged with the support table, the support table has two working states, and the working state is that the support table vertically upwards supports the chin of a user, so that pupils can keep the distance between eyes and a table top at a position of one ruler to prevent myopia; in the empty state, the support table rotates into the table drawer 24.

Even students of the same grade have differences in height, and therefore, the height of the support platform is adjustable, the support platform is provided with a support base 2321 hinged to the mounting frame 231, an adjusting device mounted on the support base 2321, and a support platform 233 mounted on the support device, the adjusting device is provided with an adjusting rod 2322 and an adjusting nut 2323 mounted on the adjusting platform for fixing the adjusting rod 2322, it is worth saying that the operating principle of the adjusting device is the same as that of the first telescopic device, and when the adjusting device is used, the adjusting nut 2323 is screwed to stretch and retract the first adjusting rod 2322, so that the support platform 233 moves up and down, it is worth saying that the upper surface of the support platform 233 is provided with a posture correction slot 2331, which is beneficial for lifting the chin.

Preferably, the material used for the pallet 233 is a resilient soft material, specifically, a silicone material.

The operating panel is fixed at a horizontal angle for visual fatigue of students in daily learning and using, and the operating panel is provided with a tilting device for adjusting the tilting angle of the operating panel with the horizontal plane, the operating panel comprises an operating bottom plate 211 fixed on a first fixed mounting seat and a second fixed mounting seat 32, an operating panel 212 and a tilting device, two sides of the operating bottom plate 211 are respectively provided with a strip-shaped hole 2111, the tilting device is provided with a first tilting device installed in a first mounting seat 31 and a second tilting device installed in a second mounting seat 32, the structure of the first tilting device and the second tilting device is the same, a second connecting rod 13 is arranged between the first tilting device and the second tilting device, specifically, the second tilting device comprises a gear 222, a rack 223 and a tilting rod 221, the gear 222 is arranged in the second mounting seat 32, the rack 223 is meshed with the gear 222, the inclined rod 221 has one end passing through the strip-shaped hole 2111 and hinged to the lower surface of the operation panel 212, and the other end hinged to the rack 223, and preferably further comprises an adjusting knob 224, wherein the adjusting knob 224 passes through the second mounting seat 32 and is connected to the gear 222.

The operation panel 212 is provided with a hand supporting plate 2122 and an inclined plate 2121, the inclined plate 2121 is hinged with the hand supporting plate 2122, the bottom end of the inclined plate 2121 is hinged with a rack 223, the middle of the hand supporting plate 2122 is provided with a posture correction groove 2331, the myopia prevention device is arranged on the hand supporting plate 2122 at the bottom of the posture correction groove 2331, the arms of a user are placed at the two ends of the hand supporting plate 2122 in the actual use process, the chest part forms a fist distance with the end part of a table top, and the chin is placed on the supporting table 233, so that the sitting posture of the user can be effectively corrected, and the hunchback of a child can be prevented.

When the desk is used by students, the students always have small articles such as water cups and stationery bags, the small articles are easy to drop or even lose when placed on the desk, and the poor experience of the use is brought to the students.

Preferably, hooks 241 are arranged on two sides of the desk drawer 24, so that the clothes of students can be hung conveniently.

Present student's course pressure is big, has a lot of tutor data in the schoolbag, has been difficult to place the schoolbag in the table steamer tray 24, for better study of student, installs between first fixed leg 112 and the fixed leg 122 of second and puts thing basket 16, just put thing basket 16 and be located the top of connecting rod 13, in the use, the student can take out the article that will use in the schoolbag and place in table steamer tray 24, then place the schoolbag in putting thing basket 16, and the student's article of being convenient for are placed, and is more succinct in the study. The storage basket 16 is designed in a detachable way, so that the use by people with different requirements is facilitated.

Preferably, the inclined plate 2121 is provided with a mounting groove, the placing plate 26 is placed in the mounting groove, the placing plate 26 includes a placing rod 261 mounted in the mounting groove and a placing plate 262 hinged to the top end of the placing rod 261, and a stop 263 is disposed at the bottom of the placing plate 262.

The supporting liftable seat 50 of foretell desk, liftable seat 50 have adjustable chair leg 51, seat 52, back, seat 52 has arc seat 521 and improves user's comfort level, back 53 has the arc portion of leaning on, and when user's back laminating back, arc portion of leaning on 531 makes the laminating portion of leaning on of user's back more increase comfort level for the regulation of cooperation above-mentioned desk is adjusted, and the student is more comfortable in the use.

Example two:

as shown in fig. 3, in another structure of the tilting device in the first embodiment, the tilting device is a tilting rod 221 hinged to both sides of the lower surface of the tilting plate 2121, the operating base plate 211 has a sliding groove 251 adjusted by the tilting rod 221, and the bottom surface of the sliding groove 251 is uniformly distributed with a limiting groove 252 for limiting the entering of the bottom end of the tilting rod 221, so as to avoid the tilting swing of the tilting plate 2121.

The invention has the advantages that:

the support legs of the invention are adjustable, the height of the operating panel from the ground can be adjusted, the support legs are matched with a liftable chair to be used by people with different heights, students with different heights can adjust the proper height by themselves, pupils can place the chin of the pupils on the support 233, the distance between eyes and books can be ensured to be a reasonable distance of one ruler during reading, the myopia of pupils can be effectively placed, and the support 233 can be adjusted according to different heights, so that the actual using effect is improved.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A student desk for preventing myopia and correcting sitting posture, comprising: the desk comprises a desk frame and an operating board, wherein the desk frame comprises two parallel first supporting legs and second supporting legs, connecting rods are arranged between the first supporting legs and the second supporting legs, a first supporting block is arranged at the bottom end of each first supporting leg, a first mounting seat is arranged at the top end of each first supporting leg, a second supporting block is arranged at the bottom end of each second supporting leg, a second mounting seat is arranged at the top end of each second supporting leg, the upper surface of the first mounting seat is connected to one side of the operating board, the upper surface of the second mounting seat is connected to the opposite side of the first supporting leg, a desk drawer is arranged on the bottom surface of the operating board, an anti-myopia device is arranged on the bottom surface of the operating board, the anti-myopia device can rotate into the desk drawer under the non-use state, and the anti-myopia device can rotate out.

2. The desk for students capable of preventing myopia and correcting sitting posture as claimed in claim 1, wherein the first leg has a first fixed leg and a first telescopic leg slidable on an inner wall of the first fixed leg, the top end of the first telescopic leg is connected with the first mounting seat, the second leg has a second fixed leg and a second telescopic leg mounted on the second fixed leg, the top end of the second telescopic leg is connected with the second mounting seat, the first mounting seat has a first telescopic device therein, the second mounting seat has a second telescopic device therein, and a first connecting rod is arranged between the first telescopic device and the second telescopic device.

3. The desk for students capable of preventing myopia and correcting sitting posture according to claim 2, wherein the first and second expansion devices have the same structure, the first expansion device comprises a first umbrella-shaped gear vertically placed, a second umbrella-shaped gear engaged with the first umbrella-shaped gear, and a screw fixed on the second umbrella-shaped gear, the screw penetrates through the first expansion leg, the upper end and the lower end of the first expansion leg are in threaded connection, it is worth saying that in order to facilitate the rotation of the first umbrella-shaped gear, the first mounting seat is provided with a rocker, the rocker is connected with the first umbrella-shaped gear, the rotation of the first umbrella-shaped gear is driven by rotating the rocker, the first umbrella-shaped gear drives the rotation of the second umbrella-shaped gear, the screw rotates along with the rotation of the second umbrella-shaped gear, the first expansion leg moves up and down to accomplish the height adjustment of the first leg, the first connecting rod ensures that the second telescopic device and the first telescopic device move synchronously, namely the second support leg and the first support leg stretch synchronously.

4. The desk for the students capable of preventing the myopia and correcting the sitting posture as claimed in claim 1, wherein the myopia prevention device comprises a mounting frame and a supporting platform, one end of the mounting frame is fixed on the lower surface of the operation plate, the other end of the mounting frame is hinged with the supporting platform, the supporting platform has two working states, and the working states are that the supporting platform vertically supports the chin of the user upwards, so that the pupils can keep the distance between the eyes and the desktop at a ruler position to prevent the myopia; when the support table is in an empty state, the support table rotates into the table drawer.

5. A student desk capable of preventing myopia and correcting sitting postures as claimed in claim 4, wherein the height of the support table is adjustable, the support table is provided with a support base hinged on the mounting frame, an adjusting device mounted on the support base, and a support platform mounted on the support device, the adjusting device is provided with an adjusting rod and an adjusting nut mounted on the adjusting platform and used for fixing the adjusting rod, and when in use, the adjusting nut is screwed to realize the extension and contraction of the first adjusting rod, so that the support platform can move up and down.

6. The desk for students capable of preventing myopia and correcting sitting posture according to claim 1, wherein the operation panel has a tilting means for adjusting the tilting angle of the operation panel with respect to the horizontal plane, the operation panel comprises an operation bottom plate fixed on the first fixing seat and the second fixing seat, an operation panel, a tilting means, the operation bottom plate has a bar-shaped hole at both sides, the tilting means has a first tilting means installed in the first fixing seat and a second tilting means installed in the second fixing seat, the first tilting means and the second tilting means have the same structure, a second connecting rod is provided between the first tilting means and the second tilting means, specifically, the second tilting means comprises a gear, a rack, and a tilting rod, the gear is placed in the second fixing seat, the rack is engaged with the gear, and one end of the tilting rod is hinged to the lower surface of the operation panel through the bar-shaped hole, the other end is hinged on the rack, preferably, the adjusting device further comprises an adjusting knob, and the adjusting knob penetrates through the second mounting seat to be connected with the gear.

7. The desk for the students, as claimed in claim 5, is characterized in that the operation panel is provided with a cup placing groove and a placement groove for the students to place and bring more experience, the inclined plate is provided with a mounting groove, a placement plate is placed in the mounting groove, the placement plate comprises a placement rod mounted in the mounting groove and a placement plate hinged with the top end of the placement rod, and the bottom of the placement plate is provided with a stop block.

8. The desk for students capable of preventing myopia and correcting sitting posture as claimed in claim 1, wherein hooks are provided at both sides of the drawer for facilitating hanging of the clothes of the students.

9. The desk for students capable of preventing myopia and correcting sitting posture as claimed in claim 1, wherein a basket is installed between the first and second fixed legs, and the basket is detachably installed.

10. A liftable seat includes above-mentioned 1-9 arbitrary one student that an myopia prevention and can carry out position of sitting correct uses desk, its characterized in that, the lift seat has adjustable chair leg, seat, back, the seat has arc seat and improves user's comfort level, the back has arc back, and when user's back laminating back, the arc back makes the laminating back more of user's back increase the comfort level for adjust in the regulation of cooperation above-mentioned desk, student more comfortable in the use.