阅读说明：本技术 多功能学习桌 (Multifunctional study desk ) 是由 张编妹 于 2020-12-03 设计创作，主要内容包括：本发明提供了多功能学习桌,包括桌板与储物槽,所述桌板的下端外表面中心位置开设有通孔,所述通孔的上端外表面开设有矩形槽,所述矩形槽的上端外表面开设有弧形槽,所述储物槽的上端外表面固定连接有卡块,所述卡块位于矩形槽的内部,所述储物槽的内表面顶端开设有滑槽,所述滑槽的内部滑动连接有滑块,所述滑块的下端外表面固定连接有第一挡板,所述第一挡板的内部滑动连接有第二挡板,所述第一挡板的内表面顶端固定连接有第二压力弹簧,该装置能够便于学生将储物槽的开口面旋转,从而降低学生考试作弊的几率,同时能够便于学生存放早餐,降低早餐热量散发的速率,从而提高装置的使用效率。(The invention provides a multifunctional learning table, which comprises a table plate and a storage groove, wherein a through hole is formed in the center of the outer surface of the lower end of the table plate, a rectangular groove is formed in the outer surface of the upper end of the through hole, an arc-shaped groove is formed in the outer surface of the upper end of the rectangular groove, a clamping block is fixedly connected to the outer surface of the upper end of the storage groove and positioned in the rectangular groove, a sliding groove is formed in the top end of the inner surface of the storage groove, a sliding block is slidably connected to the inner part of the sliding groove, a first baffle plate is fixedly connected to the outer surface of the lower end of the sliding block, a second baffle plate is slidably connected to the inner part of the first baffle plate, and a second pressure spring is fixedly connected to the top end of the inner surface of the first baffle plate. Thereby improving the use efficiency of the device.)

1. A multifunctional learning desk is characterized by comprising a desk board (1) and a storage groove (3), a through hole (2) is arranged at the center of the outer surface of the lower end of the table plate (1), a rectangular groove (5) is arranged on the outer surface of the upper end of the through hole (2), an arc-shaped groove (6) is formed in the outer surface of the upper end of the rectangular groove (5), a clamping block (4) is fixedly connected to the outer surface of the upper end of the storage groove (3), the clamping block (4) is positioned inside the rectangular groove (5), the top end of the inner surface of the storage groove (3) is provided with a sliding groove (18), a sliding block (19) is connected inside the sliding groove (18) in a sliding manner, a first baffle plate (20) is fixedly connected to the outer surface of the lower end of the sliding block (19), a second baffle plate (21) is connected in the first baffle plate (20) in a sliding way, the top end of the inner surface of the first baffle plate (20) is fixedly connected with a second pressure spring (22).

2. The multifunctional learning table as claimed in claim 1, wherein the outer surface of the upper end of the fixture block (4) is of a rectangular structure and is clamped with the rectangular groove (5), the outer surface of the lower end of the fixture block (4) is of an arc structure and is attached to the through hole (2), the diameter of the arc groove (6) is larger than the length of the rectangular groove (5), the height of the rectangular groove (5) is the same as that of the arc groove (6), and the through hole (2), the rectangular groove (5) and the arc groove (6) are communicated with each other.

3. The multifunctional learning table as claimed in claim 1, wherein a first movable groove (7) is formed on the outer surface of the upper end of the arc-shaped groove (6), a gear (8) is rotatably connected to the inner portion of the first movable groove (7), a limiting groove (9) is formed on the outer surface of the lower end of the gear (8), a first pressure spring (10) is arranged inside the limiting groove (9), a limiting post (11) is slidably connected to the inner portion of the limiting groove (9), a limiting hole (12) is formed on the outer surface of the upper end of the clamping block (4), the limiting hole (12) and the outer surface of the lower end of the limiting post (11) are mutually clamped, a second movable groove (13) is formed on the outer surface of the rear end of the first movable groove (7), a threaded rod (14) is arranged inside the second movable groove (13), and a timer (16) is arranged on the outer surface of the upper end of the threaded rod, a placing groove (15) is formed in the outer surface of the upper end of the table plate (1), the timer (16) is located inside the placing groove (15), a bearing (17) is connected to the outer surface of the lower end of the timer (16) in an embedded mode, the bearing (17) is connected with the threaded rod (14) in a mutual connection mode, and the gear (8) is meshed with the threaded rod (14) in a mutual engagement mode.

4. The multifunctional learning table as claimed in claim 1, wherein the second baffle (21) is provided at the outer surface of the lower end thereof with a magic tape, and the cleaning brush (25) is fixedly connected to the outer surface of the lower end of the magic tape.

5. The multifunctional learning table as claimed in claim 1, wherein the outer surface of the upper end of the sliding block (19) is matched with the inside of the sliding groove (18) in an arc structure, the outer surface of the second baffle plate (21) is provided with scales, the outer surface of the front end of the first baffle plate (20) is provided with a threaded hole (23), the inner thread of the threaded hole (23) is connected with a knob (24), the tail end of the knob (24) is in an arc structure and provided with anti-slip threads, the sliding block (19) is in an L-shaped structure, and the sliding block (19) is connected with a magnetic block in an embedded manner.

6. A multifunctional learning table as claimed in claim 1, characterized in that the storage tank (3) is provided with an insulating layer inside.

Technical Field

The invention relates to the technical field of learning tables, in particular to a multifunctional learning table.

Background

The learning desk is a tool made by deep research of three major disciplines of Human Engineering, Human mechanics and Human physiology and by combining Human visual principle, coloristics, psychology and the like through countless data acquisition, experiment and argumentation, and the learning desk and the traditional desk are two completely different concepts.

The existing patent (publication number: CN105747541B) is a children learning desk, which comprises desk legs, a support tube fixed on the upper end of the desk legs, a connecting tube fixed on the support tube and a desk plate rotationally connected on the connecting tube, wherein a locking wrench is arranged on the support tube and comprises an articulated element with a rotating shaft, a plurality of connecting sheets rotationally connected on the rotating shaft and a control mechanism which can lock or loosen the connecting sheets, the control mechanism comprises a sleeve fixed on the support tube, a driving rod arranged in the sleeve, a baffle connected at one end of the driving rod, a first spring arranged between the baffle and the bottom surface of the sleeve and a driving block arranged in the sleeve and abutted against the baffle, the other end of the driving rod extends out of the sleeve to be rotationally connected with the connecting sheets, a plurality of first friction plates are sleeved on the driving rod, each connecting sheet is arranged between the two first friction plates, the first spring applies resilience force to the baffle plate to enable the connecting plate and the first friction plate to be locked between the locking nut and the supporting pipe, the sleeve is provided with a first pin shaft penetrating through the driving block, and the driving block rotates around the first pin shaft to drive the baffle plate to compress the first spring to release the connecting plate and the first friction plate; be equipped with the second connecting pipe on the stay tube, be equipped with the air spring between table and the second connecting pipe, be equipped with first hinge on the lower terminal surface of table, be equipped with the second hinge on the second connecting pipe, the upper end and the first hinge of air spring rotate to be connected, and the lower extreme and the second hinge of air spring rotate to be connected.

In the process of implementing the invention, the following problems in the prior art are found to be at least not solved:

1. when students take examinations, teachers generally make students fall front and back of a desk to enable the back of the desk to face the students in order to prevent the students from cheating by utilizing the desk hole, however, the practice can generate great noise, and meanwhile, some students need to look back to a clock hung on a wall to check the remaining time of the examinations, so that the examination discipline is greatly influenced, and some students have cheating opportunities;

2. the breakfast is usually taken into a classroom by some students who read, but the students generally eat the breakfast after the early self-study is finished, so that the breakfast is cold, and the students are easy to influence the body health when eating the breakfast; meanwhile, the students can press viscera of the thoracic cavity and the abdominal cavity due to incorrect sitting posture for a long time, so that blood flow and respiratory movement are hindered, fatigue and insufficient blood supply to the brain are caused, normal development of the spine and eyesight is influenced, the traditional study table does not have the function of sitting posture correction, and the use efficiency of the device is reduced;

therefore, a multifunctional learning table is provided.

Disclosure of Invention

The first purpose of the present invention is to provide a multifunctional learning table, which is convenient for students to rotate the opening surface of the storage tank, so as to reduce the probability of cheating in examination of students, and simultaneously, is convenient for students to store breakfast, and reduces the heat dissipation rate of breakfast, so as to improve the use efficiency of the device, and solve the problems in the background art.

The invention provides a multifunctional learning table which comprises a table plate and a storage groove, wherein a through hole is formed in the center of the outer surface of the lower end of the table plate, a rectangular groove is formed in the outer surface of the upper end of the through hole, an arc-shaped groove is formed in the outer surface of the upper end of the rectangular groove, a clamping block is fixedly connected to the outer surface of the upper end of the storage groove and located inside the rectangular groove, a sliding groove is formed in the top end of the inner surface of the storage groove, a sliding block is connected inside the sliding groove in a sliding mode, a first baffle plate is fixedly connected to the outer surface of the lower end of the sliding block, a second baffle plate is connected inside the first baffle plate in a sliding.

By adopting the technical scheme, the device can be convenient for students to rotate the opening surface of the storage groove, so that the probability of cheating in examinations of the students is reduced, meanwhile, the students can store breakfast conveniently, the heat dissipation rate of the breakfast is reduced, and the use efficiency of the device is improved.

Preferably, the upper end outward appearance of fixture block is rectangular structure and blocks each other with the rectangular channel, the lower extreme outward appearance of fixture block is arc structure and laminates each other with the through-hole, the diameter of arc wall is greater than the length of rectangular channel, the rectangular channel is the same with the height of arc wall, through-hole, rectangular channel and arc wall communicate each other.

Through adopting above-mentioned technical scheme, when the mr when needs the examination, at first let the student upwards promote the storing groove, the fixture block on the storing groove shifts to the arc wall in from the rectangular channel this moment, and further the student rotates the storing groove 180 degrees, makes the opening part of storing groove be located the front seat classmate directly behind, then the student downwards stimulates the storing groove again, and the fixture block on the storing groove moves down until with the rectangular channel block in following the arc wall to reduce the probability that the student cheated.

Preferably, the outer surface of the upper end of the arc-shaped groove is provided with a first movable groove, the inner part of the first movable groove is rotatably connected with a gear, the outer surface of the lower end of the gear is provided with a limit groove, a first pressure spring is arranged in the limit groove, the inner part of the limiting groove is connected with a limiting post in a sliding way, the outer surface of the upper end of the clamping block is provided with a limiting hole, the limiting hole is mutually clamped with the outer surface of the lower end of the limiting column, the outer surface of the rear end of the first movable groove is provided with a second movable groove, a threaded rod is arranged in the second movable groove, a timer is arranged on the outer surface of the upper end of the threaded rod, the outer surface of the upper end of the table plate is provided with a placing groove, the timer is positioned inside the placing groove, the lower extreme surface embedded type of time-recorder is connected with the bearing, bearing and threaded rod link up each other, gear and threaded rod intermeshing.

Through adopting above-mentioned technical scheme, when the student is rotating the storing groove, the storing groove drives the fixture block at the arc wall internal rotation, further drive spacing downthehole spacing post and follow fixture block synchronous rotation, thereby drive the gear emergence rotation of first activity inslot, can drive the threaded rod rotation of second activity inslot when gear revolve, when the threaded rod rotates, thereby force the threaded rod to move up at the second activity inslot, and then the time-recorder that drives on the threaded rod shifts up in the standing groove, through the bearing between threaded rod and the time-recorder, can prevent that the time-recorder from rotating when ascending, after the time-recorder finishes rising, the student puts down the storing groove, under the resilience effect of spacing inslot first pressure spring, can make spacing post continue with spacing hole block, thereby prevent the gear rotation, lead to the time-recorder to move down.

Preferably, the outer surface of the lower end of the second baffle is provided with a magic tape, and the outer surface of the lower end of the magic tape is fixedly connected with the cleaning brush.

Through adopting the above-mentioned technical scheme, when the student need clear up the rubbish in the storing groove, at first promote first baffle to the end in storing groove, then the user unscrews the knob in the screwed hole on the first baffle, this moment in first baffle under second pressure spring's resilience force effect, force the second baffle to move down, make the bottom surface in clearance brush and storing groove laminate each other, furthermore, user pulling knob drives the slider on the first baffle and removes in the spout, and then can convenient to use person clear up the rubbish in the storing groove, the availability factor of the improvement device, after the long-time use wearing and tearing of clearance brush, the user directly tears the clearance brush that the magic was pasted, thereby convenient to use person changes the clearance brush.

Preferably, the outer surface of the upper end of the sliding block is in arc-shaped structure fit with the inside of the sliding groove, the outer surface of the second baffle is provided with scales, the outer surface of the front end of the first baffle is provided with a threaded hole, the inside of the threaded hole is in threaded connection with a knob, the tail end of the knob is in a circular arc-shaped structure and provided with anti-skid grains, the sliding block is in an L-shaped structure, and the inside of the sliding block is connected with a magnetic block in an embedded mode.

Through adopting above-mentioned technical scheme, when the student need correct the position of sitting, at first tear the clearance brush through the magic subsides, then the pulling slider is at spout internal displacement, the user turns over a first baffle again, make the slider and the mutual block of front end surface in storing groove, through magnetic path and storing groove magnetic adsorption, thereby reach the purpose of fixed first baffle, further the user is again with the position of sitting adjustment, the user unscrews the knob in the screwed hole, make the second baffle extend out from first baffle and support to student's thorax, further the user observes the scale so that correct next time, then tighten the knob again, thereby reach the purpose of posture correction.

Preferably, the storage tank is internally provided with a heat preservation layer.

Through adopting above-mentioned technical scheme, set up the heat preservation in the storing groove and can play the speed that reduces the heat and volatilize to student's breakfast winter, improve the availability factor of device.

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

1. by adding a series of structural components such as a clamping block, a rectangular groove, an arc groove, a gear, a threaded rod and the like into the device, when a teacher needs to take an examination, the student firstly pushes the storage groove upwards through the through hole, at the moment, the clamping block on the storage groove is displaced into the arc groove on the desk plate from the rectangular groove, the student further rotates the storage groove 180 degrees, so that the opening of the storage groove is positioned right behind the front seat student, when the student rotates the storage groove, the storage groove drives the clamping block to rotate in the arc groove, further drives the limiting column in the limiting hole to synchronously rotate along with the clamping block, so as to drive the gear in the first movable groove to rotate, when the gear rotates, the threaded rod in the second movable groove can be driven to rotate, when the threaded rod rotates, the threaded rod is forced to move upwards in the second movable groove, and further drives the timer on the threaded rod to move upwards in the placing groove, the bearing between the threaded rod and the timer can prevent the timer from rotating when the timer rises, and after the timer rises, a student puts down the storage tank, and the limit column can be continuously clamped with the limit hole under the action of the resilience force of the first pressure spring in the limit tank, so that the rotation of the gear is prevented, the timer is prevented from moving downwards, the timer can be convenient for the student to observe the remaining time of the examination, and the cheating probability of the student can be reduced;

2. through adding a series of structural components such as a chute, a sliding block, a second baffle plate, a cleaning brush and the like into the device, when a student needs to clean garbage in the storage tank, the first baffle plate is pushed to the tail end of the storage tank, then a user unscrews a knob in a threaded hole in the first baffle plate, at the moment, under the action of the resilience force of a second pressure spring in the first baffle plate, the second baffle plate is forced to move downwards, so that the cleaning brush is attached to the bottom surface of the storage tank, further, the user pulls the knob to drive the sliding block on the first baffle plate to move in the chute, the garbage in the storage tank can be cleaned conveniently by the user, the use efficiency of the device is improved, after the cleaning brush is worn and worn for a long time, the user directly tears off the cleaning brush on the magic tape, so that the user can replace the cleaning brush conveniently, when the student needs to correct the sitting posture, the cleaning brush is firstly torn off through the magic tape, then pulling the slider at the spout internal displacement, the user turns over a book with first baffle again, make the mutual block of front end surface in slider and storing groove, through magnetic path and storing groove magnetic adsorption, thereby reach the purpose of fixed first baffle, further the user is again with the position of sitting adjustment, the user unscrews the knob in the screw hole, make the second baffle extend out from first baffle and support to student's thorax, further the user observes the scale so that correct next time, then screw up the knob again, thereby reach the purpose of posture correction, it can play the speed that reduces the heat and volatilize to student's breakfast winter to set up the heat preservation in the storing groove, the availability factor of device is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a structural view of the present invention;

FIG. 2 is a combination view of the table and the storage trough of the present invention;

FIG. 3 is a combination view of the gear and the timepiece of the present invention;

FIG. 4 is a view of the fixture block in combination with a threaded rod in accordance with the present invention;

fig. 5 is a combined view of a first baffle and a second baffle of the present invention.

Description of reference numerals:

1. a table plate; 2. a through hole; 3. a storage tank; 4. a clamping block; 5. a rectangular groove; 6. an arc-shaped slot; 7. a first movable slot; 8. a gear; 9. a limiting groove; 10. a first pressure spring; 11. a limiting column; 12. a limiting hole; 13. a second movable slot; 14. a threaded rod; 15. a placement groove; 16. a timer; 17. a bearing; 18. a chute; 19. a slider; 20. a first baffle plate; 21. a second baffle; 22. a second pressure spring; 23. a threaded hole; 24. a knob; 25. a cleaning brush.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, the present invention provides a technical solution:

multi-functional study table, as shown in fig. 1 to 5, including table 1 and storing groove 3, through-hole 2 has been seted up to the lower extreme surface central point of table 1, rectangular channel 5 has been seted up to the upper end surface of through-hole 2, arc wall 6 has been seted up to the upper end surface of rectangular channel 5, the upper end surface fixed connection of storing groove 3 has fixture block 4, fixture block 4 is located the inside of rectangular channel 5, spout 18 has been seted up on the internal surface top of storing groove 3, the inside sliding connection of spout 18 has slider 19, the first baffle 20 of lower extreme surface fixed connection of slider 19, the inside sliding connection of first baffle 20 has second baffle 21, the internal surface top fixed connection of first baffle 20 has second compression spring 22.

By adopting the technical scheme, the device can be convenient for students to rotate the opening surface of the storage tank 3, so that the probability of cheating in examinations of the students is reduced, meanwhile, the students can store breakfast conveniently, the heat dissipation rate of the breakfast is reduced, and the use efficiency of the device is improved.

Specifically, the upper end outward appearance of fixture block 4 is rectangular structure and blocks each other with rectangular channel 5, the lower extreme outward appearance of fixture block 4 is arc structure and laminates each other with through-hole 2, the diameter of arc wall 6 is greater than the length of rectangular channel 5, rectangular channel 5 is the same with the height of arc wall 6, through-hole 2, rectangular channel 5 communicate each other with arc wall 6.

Through adopting above-mentioned technical scheme, when the mr is when needs the examination, at first let the student upwards promote storing groove 3, the fixture block 4 on the storing groove 3 of this moment shifts to in the arc wall 6 from 5 interior displacements of rectangular channel, further the student rotates storing groove 3 180 degrees, make the opening part of storing groove 3 be located the front seat classmate dead astern, then the student downwards stimulates storing groove 3 again, fixture block 4 on the storing groove 3 moves down until with 5 blocks of rectangular channel from 6 interiors of arc wall, thereby reduce the probability that the student cheated.

Specifically, a first movable groove 7 is formed in the outer surface of the upper end of the arc-shaped groove 6, a gear 8 is rotatably connected inside the first movable groove 7, a limiting groove 9 is formed in the outer surface of the lower end of the gear 8, a first pressure spring 10 is arranged inside the limiting groove 9, a limiting post 11 is slidably connected inside the limiting groove 9, a limiting hole 12 is formed in the outer surface of the upper end of the fixture block 4, the limiting hole 12 is mutually clamped with the outer surface of the lower end of the limiting post 11, a second movable groove 13 is formed in the outer surface of the rear end of the first movable groove 7, a threaded rod 14 is arranged inside the second movable groove 13, a timer 16 is arranged on the outer surface of the upper end of the threaded rod 14, a placing groove 15 is formed in the outer surface of the upper end of the table plate 1, the timer 16 is located inside the placing groove 15, and a bearing 17 is connected to the outer, the bearing 17 is engaged with the threaded rod 14, and the gear 8 is engaged with the threaded rod 14.

By adopting the technical scheme, when a student rotates the storage groove 3, the storage groove 3 drives the fixture block 4 to rotate in the arc-shaped groove 6, the limiting post 11 in the limiting hole 12 is further driven to synchronously rotate along with the fixture block 4, so as to drive the gear 8 in the first movable groove 7 to rotate, when the gear 8 rotates, the threaded rod 14 in the second movable groove 13 can be driven to rotate, when the threaded rod 14 rotates, the threaded rod 14 is forced to move upwards in the second movable groove 13, so as to drive the timer 16 on the threaded rod 14 to move upwards in the placing groove 15, the timer 16 can be prevented from rotating when ascending through the bearing 17 between the threaded rod 14 and the timer 16, after the timer 16 finishes ascending, the student puts down the storage groove 3, under the action of the resilience force of the first pressure spring 10 in the limiting groove 9, the limiting post 11 can be continuously clamped with the limiting hole 12, so as to prevent the gear 8 from rotating, causing timer 16 to move down.

Specifically, the outer surface of the lower end of the second baffle 21 is provided with a magic tape, and the outer surface of the lower end of the magic tape is fixedly connected with the cleaning brush 25.

Through adopting above-mentioned technical scheme, when the student need clear up the rubbish in the storing groove 3, at first promote first baffle 20 to the end in storing groove 3, then the user unscrews knob 24 in the screw hole 23 on the first baffle 20, this moment in first baffle 20 under second pressure spring 22's resilience effect, force second baffle 21 to move down, make clearance brush 25 laminate each other with the bottom surface in storing groove 3, furthermore, user pulling knob 24 drives slider 19 on the first baffle 20 and removes in spout 18, and then can convenient to use person clear up the rubbish in the storing groove 3, the availability factor of the device is improved, after the long-time wearing and tearing of clearance brush 25, the user directly tears down the clearance brush 25 that the magic was pasted, thereby convenient to use person changes clearance brush 25.

Specifically, the outer surface of the upper end of the sliding block 19 is in arc-shaped structure fit with the inside of the sliding groove 18, the outer surface of the second baffle plate 21 is provided with scales, the outer surface of the front end of the first baffle plate 20 is provided with a threaded hole 23, the inner thread of the threaded hole 23 is connected with a knob 24, the tail end of the knob 24 is in a circular arc-shaped structure and provided with anti-skid grains, the sliding block 19 is in an L-shaped structure, and the sliding block 19 is connected with a magnetic block in an embedded manner.

Through adopting above-mentioned technical scheme, when the student need rectify the position of sitting, at first tear clearance brush 25 through the magic subsides, then stimulate slider 19 at 18 internal displacements of spout, the user turns over first baffle 20 again, make slider 19 and the mutual block of front end surface in storing groove 3, through magnetic path and 3 magnetic adsorption in storing groove, thereby reach the purpose of fixed first baffle 20, further the user is again with the position of sitting adjustment, the user unscrews knob 24 in the screw hole 23, make second baffle 21 extend out to reach student's thorax from first baffle 20 in, further the user observes the scale so that correct next time, then screw up knob 24 again, thereby reach the purpose of posture correction.

Specifically, a heat insulation layer is arranged inside the storage tank 3.

Through adopting above-mentioned technical scheme, set up the heat preservation in storing groove 3 and can play the speed that reduces the heat and volatilize to student's breakfast winter, improve the availability factor of device.

The working principle is as follows: by adding a series of structural components such as the clamping block 4, the rectangular groove 5, the arc-shaped groove 6, the gear 8, the threaded rod 14 and the like into the device, when a teacher needs to take an examination, the student firstly pushes the storage groove 3 upwards through the through hole 2, at the moment, the clamping block 4 on the storage groove 3 is displaced from the rectangular groove 5 into the arc-shaped groove 6 on the table plate 1, the student further rotates the storage groove 3 by 180 degrees, so that the opening of the storage groove 3 is positioned right behind the front seat student, when the student rotates the storage groove 3, the storage groove 3 drives the clamping block 4 in the arc-shaped groove 6, further drives the limiting column 11 in the limiting hole 12 to rotate synchronously along with the clamping block 4, so as to drive the gear 8 in the first movable groove 7 to rotate, when the gear 8 rotates, the threaded rod 14 in the second movable groove 13 can be driven to rotate, when the threaded rod 14 rotates, so as to force the threaded rod 14 to move upwards in the second movable groove 13, and then drive the time-recorder 16 on the threaded spindle 14 to move up in the standing groove 15, through the bearing 17 between threaded spindle 14 and time-recorder 16, can prevent the time-recorder 16 from rotating while rising, after the rise of the time-recorder 16 is finished, the student puts down the storing trough 3, under the influence of resilience force of the first compression spring 10 in the spacing trough 9, can make the spacing post 11 continue to block with the spacing hole 12, thus prevent the gear 8 from autorotation, cause the time-recorder 16 to move down, set up the time-recorder 16 and can facilitate the student to observe the rest time of the examination, can reduce the probability of student's cheating at the same time, through adding a series of structural components such as concrete chute 18, slide block 19, second baffle 21 and cleaning brush 25 in the apparatus in the student's need to clean the rubbish in the storing trough 3, push the first baffle 20 to the end of the trough 3 at first, then the user unscrews knob 24 in the threaded hole 23 on the first baffle 20, at the moment, under the effect of the resilience force of the second pressure spring 22 in the first baffle 20, the second baffle 21 is forced to move downwards, so that the cleaning brush 25 is attached to the bottom surface of the storage tank 3, further, a user pulls the knob 24 to drive the slider 19 on the first baffle 20 to move in the chute 18, so that the user can clean the garbage in the storage tank 3 conveniently, the use efficiency of the device is improved, after the cleaning brush 25 is worn and torn for a long time, the user directly tears off the cleaning brush 25 on the magic tape, the user can replace the cleaning brush 25 conveniently, when a student needs to correct the sitting posture, the cleaning brush 25 is firstly torn off through the magic tape, then the slider 19 is pulled to move in the chute 18, the user turns over the first baffle 20, so that the slider 19 is clamped with the outer surface of the front end of the storage tank 3, and is magnetically adsorbed to the storage tank 3 through the magnetic block, thereby reach the purpose of fixed first baffle 20, further the user again with the position of sitting adjustment, the user unscrews knob 24 in the screw hole 23, makes second baffle 21 extend out from first baffle 20 and support to student's thorax, further the user observes the scale so that correct next time, then screws up knob 24 again to reach the purpose of posture correction, sets up the heat preservation in storing groove 3 and can play the speed that reduces the heat and volatilize to student's breakfast in winter, improves the availability factor of device.

The using method comprises the following steps: when a teacher needs examination, firstly, students push the storage groove 3 upwards through the through hole 2, at this time, the fixture block 4 on the storage groove 3 is displaced from the rectangular groove 5 to the arc-shaped groove 6 on the table board 1, and then the students rotate the storage groove 3 by 180 degrees, so that the opening of the storage groove 3 is positioned right behind the front seat student, when the students rotate the storage groove 3, the storage groove 3 drives the fixture block 4 to rotate in the arc-shaped groove 6, further drives the limit post 11 in the limit hole 12 to rotate synchronously with the fixture block 4, thereby driving the gear 8 in the first movable groove 7 to rotate, when the gear 8 rotates, the threaded rod 14 in the second movable groove 13 can be driven to rotate, when the threaded rod 14 rotates, the threaded rod 14 is forced to move upwards in the second movable groove 13, further driving the timer 16 on the threaded rod 14 to move upwards in the placing groove 15, and through the bearing 17 between the threaded rod 14 and the timer 16, can prevent the timer 16 from rotating when rising, when the timer 16 finishes rising, the student puts down the storage tank 3, under the effect of the resilience force of the first pressure spring 10 in the limit tank 9, the limit column 11 can be continuously clamped with the limit hole 12, thereby preventing the gear 8 from rotating, and leading the timer 16 to move downwards, the timer 16 is arranged to facilitate the student to observe the remaining time of the examination, and simultaneously can reduce the probability of cheating of the student, when the student needs to clean the rubbish in the storage tank 3, the first baffle plate 20 is firstly pushed to the tail end of the storage tank 3, then the user unscrews the knob 24 in the threaded hole 23 on the first baffle plate 20, at the moment, under the effect of the resilience force of the second pressure spring 22 in the first baffle plate 20, the second baffle plate 21 is forced to move downwards, so that the cleaning brush 25 is mutually attached to the bottom surface of the storage tank 3, further, the user pulls the knob 24 to drive the slide block 19 on the first baffle plate 20 to move in the chute 18, when the cleaning brush 25 is worn after being used for a long time, the user directly tears off the cleaning brush 25 on the magic tape, so that the user can conveniently replace the cleaning brush 25, when a student needs to correct the sitting posture, the cleaning brush 25 is firstly torn off through the magic tape, then the sliding block 19 is pulled to move in the sliding groove 18, the user turns over the first baffle plate 20 to enable the sliding block 19 to be clamped with the outer surface of the front end of the storage groove 3, the magnetic block is magnetically adsorbed with the storage groove 3, the purpose of fixing the first baffle plate 20 is achieved, the user can further adjust the sitting posture, the user unscrews the knob 24 in the threaded hole 23, the second baffle plate 21 extends out from the first baffle plate 20 and abuts against the chest of the student, and the user observes the scale to correct the next time, then the knob 24 is screwed down, so that the aim of posture correction is achieved, the heat preservation layer is arranged in the storage tank 3, the heat volatilization speed of breakfast of students can be reduced in winter, and the use efficiency of the device is improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.