CN114947386A - Student desk and chair - Google Patents

Abstract

The invention discloses a student desk and chair, comprising: the desk comprises a book bucket, the book bucket comprises a top plate which is obliquely arranged, the book bucket comprises a storage cavity, the storage cavity comprises an opening and a back part which is opposite to the opening, and the top plate is obliquely downwards inclined from one end which is arranged at the opening to one end which is arranged at the back part; the tablet chair comprises a seat plate, a backup plate and leg supporting plates, wherein the backup plate is adjustable in included angle between the seat plate, the leg supporting plates are movably connected with the seat plate through guide assemblies, and the guide assemblies are used for guiding the leg supporting plates to move and be accommodated below the seat plate. Compared with the prior art, the student in this application only needs to carry out three steps of regulation when having a break, can carry out the break, neither need remove desk and chair, also need not many desks and chairs and carry out adjustment by a wide margin, can be fine solve the difficult problem of student's break in the break, simultaneously, the desk chair is little at the in-process noise that changes, does not influence other students and has a rest.

Description

Student desk and chair

Technical Field

The invention relates to the field of teaching aids, in particular to a student desk and chair.

Background

When noon break of traditional desk chair student, the student can only lie prone at the desktop, and the headrest is in arm noon break in hand, and the arm receives the oppression, and the neck muscle is long-term tensile, and the back distortion has often hand numb after noon break, and the odd shape of part student back produces very big influence to the student is healthy.

The existing noon break desk and chair on the market at present solves the problem of noon break of partial people, the desk and chair is changed into a noon break mode from a class mode, a desk and a chair need to be adjusted greatly, the time consumption is long, the change process is complex, great change operation noise is generated in the period, and the rest of other people is easily influenced; and the classroom size of school is standard, and when current noon break desk chair changed from the mode of going to class to noon body mode, all desk chairs in classroom all shifted and supply the student to lie down in order to reserve sufficient space, and under the interval of current front and back desk, can not guarantee that all desk intervals can both satisfy student's noon break, consequently this kind of noon break mode also is not practical, is difficult to popularize.

Disclosure of Invention

The invention provides a student desk and chair, which solves the technical problems that in the prior art, when a student desk and chair is switched to a noon break mode, steps are complicated, and occupied space is large.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a student desk and chair comprising: the desk comprises a book bucket, the book bucket comprises a top plate which is obliquely arranged, the book bucket comprises a storage cavity, the storage cavity comprises an opening and a back part which is opposite to the opening, and the top plate is obliquely downwards inclined from one end which is arranged at the opening to one end which is arranged at the back part; the tablet chair comprises a seat plate, a backup plate and leg supporting plates, wherein the backup plate is adjustable in included angle between the seat plate, the leg supporting plates are movably connected with the seat plate through guide assemblies, and the guide assemblies are used for guiding the leg supporting plates to move and be accommodated below the seat plate.

Furthermore, the desk further comprises a panel, the panel is arranged above the book bucket, and the panel is connected with the book bucket in a turnover mode.

Furthermore, the desk further comprises a turnover mechanism, the turnover mechanism comprises a locking structure, the locking structure comprises a lock rod, one end of the lock rod is connected with the panel in a rotating mode, the other end of the lock rod is connected with the book bucket in a sliding mode, and the book bucket further comprises a clamping groove which is formed in the desk body and used for clamping and positioning the lock rod.

Furthermore, the top plate is provided with a groove, the shape of the groove is matched with that of the head of a human body, and the groove is provided with air holes.

Furthermore, the turnover mechanism further comprises an elastic buffer structure, and two ends of the elastic buffer structure are respectively connected with the panel and the hopper in a rotating manner.

Further, the tablet chair further comprises an adjustment mechanism, the adjustment mechanism comprising: the first gear is arranged on the backup plate rotating path and used for abutting against the backup plate; the locking piece, the locking piece movably is located between backup plate and the first gear, the locking piece activity extremely backup plate rotate on the route with the backup plate butt, the locking piece activity extremely outside the backup plate rotates the route in order to with the backup plate breaks away from the butt.

Further, the locking member includes: the upper connecting plate comprises a first mounting part, a second mounting part and a propping part, the first mounting part is hinged with the seat plate, and the propping part is propped against the backup plate; the operating rod is connected between the two upper connecting plates, one end, far away from the operating rod, of each upper connecting plate is an abutting end abutted against the seat plate, and the distance from the abutting end to the first mounting part is larger than the distance from the first mounting part to the base; the elastic reset piece is connected with the second installation part and the seat plate, the first installation part is arranged at one end of the operating rod, and the second installation part is arranged between the first installation part and the abutting part.

Further, the backup plate comprises a rotating shaft and an abutting head, the rotating shaft is horizontal, the abutting head is arranged below the rotating shaft, and the abutting head is used for abutting against the abutting part and the first blocking body; the seat plate comprises a support frame, a second gear and the first gear are arranged on the support frame, the second gear is used for being abutted to the abutting head, the first gear and the second gear are respectively arranged on two sides of the abutting head, and the abutting head swings between the first gear and the second gear.

Further, the direction subassembly includes the guide, the guide is a pair of guide rail, the leg layer board is equipped with the slider, the leg layer board with the slider rotates to be connected, and is located the leg layer board both sides the coaxial setting of slider, the slider is located on the guide rail, the both ends of guide rail are equipped with the stopper, the stopper can with the slider butt, the slider is two slide between the stopper, the draw-in groove has been seted up to the stopper, the leg layer board is equipped with the lug, the lug is located in the draw-in groove, just the draw-in groove is on a parallel with the both ends of guide rail length direction are equipped with the confession the bayonet socket that the lug slides and passes.

Further, the height-adjustable of desk and tablet chair, just student's tablet chair still includes that detachably sets up head on the backup plate holds in the palm the subassembly, head holds in the palm the subassembly and includes head layer board and telescopic link, the telescopic link connect in between backup plate and the head layer board, the telescopic link is used for adjusting distance between backup plate and the head layer board.

Has the advantages that: compared with the prior art, this application when the student needs noon break, only needs to overturn the panel to vertical state, and the roof of book fill exposes to the operating lever is lightly pressed downwards simultaneously, lightly pushes away the backup plate simultaneously, adjusts backup plate and bedplate to be 150 degrees nearly flat states of lying, and student's head is rested head on the roof, and the student places the shank can noon break on the leg layer board. Generally, when the student in this application is in noon break, only need carry out three steps of regulation, can carry out noon break, neither need remove desk and chair, also need not many desks and chairs and carry out adjustment by a wide margin, can fine solution student noon break difficult problem, simultaneously, the desk chair is little at the in-process noise that changes, does not influence other students and has a rest.

In addition, the application also has the following advantages:

1. the front-back distance of the desk in the application is only 90CM at minimum, 45-48 desk and chair can be placed in one existing standard classroom, and the desk adapts to the actual situation of the existing school; and noon break desk chair is applicable 1.2 meters to 2.0 meters height student, and the seat can bear 150KG weight noon break, and the design has been widened to the seat cushion, and the student can put in both sides when noon break, and noon break is more comfortable.

2. The novel chair for the noon body is specially designed to be breathable, and the seat plate, the backup plate, the leg supporting plate and the head supporting plate are all provided with the breathable holes, so that the problem of the noon body ventilation in hot summer is solved.

3. The desk and chair in this application adopts optimization modular design, and the lower half shelters from fewly, makes things convenient for the student to clean the health.

Drawings

FIG. 1 is a schematic view of the structure of a desk and a chair according to the present invention.

Fig. 2 is a perspective view of the open side of the first embodiment of the desk.

Fig. 3 is a perspective view of the open side of the desk in a second embodiment.

Fig. 4 is a perspective view of the back side of the desk in a second embodiment.

Fig. 5 is an enlarged schematic view of a in fig. 1.

Fig. 6 is a partial structural view of the first embodiment of the desk.

Fig. 7 is a schematic structural view of the turnover mechanism in the first embodiment of the desk.

Fig. 8 is a schematic perspective view of a tablet chair according to the present invention.

Figure 9 is a schematic view of the structure of the seat plate in the first embodiment of the tablet chair.

Fig. 10 is a schematic structural view of a support frame in the first embodiment of the tablet chair.

Figure 11 is a schematic view of the latch of the first embodiment of the tablet chair.

Figure 12 is a schematic view of the connection between the locking member and the seat plate in the first embodiment of the tablet chair.

Fig. 13 is a structural diagram showing the back direction of the back plate in the first embodiment of the tablet chair.

Fig. 14 is a schematic structural view of a tablet chair in class mode according to the present invention.

FIG. 15 is a schematic structural view of a tablet chair in the noon break mode of the present invention.

Fig. 16 is a schematic structural view of the second embodiment of the back plate adjusting mechanism in class administration mode.

Fig. 17 is a schematic structural view of the second embodiment of the reclining mechanism in the noon break mode.

Fig. 18 is an exploded view of a second embodiment of a fence adjustment mechanism.

Fig. 19 is a schematic view of the mounting structure of the back plate to the head rest.

Fig. 20 is a schematic view of the telescopic structure of the head support plate.

Fig. 21 is a perspective view of the leg rest of the present invention.

Fig. 22 is a schematic structural view of the leg rest of the present invention in a stored state.

FIG. 23 is a side view of the leg rest of the present invention.

Fig. 24 is a schematic view of an exploded structure of a leg rest according to the present invention.

FIG. 25 is a schematic view of an installation structure of a stopper and a guide member according to the present invention.

Figure 26 is a schematic view of the combined structure of a second embodiment of the desk and a second embodiment of the tablet chair according to the present invention (leg rest not shown).

The fingers in fig. 14 and 15 are only schematic of the force application direction of the backup plate during rotation adjustment, and do not belong to a part of the backup plate adjusting mechanism.

Detailed Description

The invention provides a student desk and chair, as shown in figure 1 and figure 26, the desk and chair in the application comprises a desk and a chair, and the desk and the chair are both arranged to be adjustable in structure and used for noon break of students.

Referring to fig. 1 to 7, the desk mainly includes a book bucket 1a, a panel and legs 10a, the book bucket has a storage cavity 11a, the storage cavity 11a is used for storing articles for students, one side of the storage cavity 11a has an opening, the side of the storage cavity 11a opposite to the opening is a back of the storage cavity 11a, in the first embodiment of the book bucket 1a, the storage cavity 11a further includes a top plate 13a, the top plate 13a is obliquely arranged on the top of the storage cavity 11a, the top plate 13a is inclined downwards from one end arranged on the opening to one end arranged on the back, a student at a lower side of the top plate 13a can lean against the book bucket 1a, and the position of the desk and chair is adjusted to lie on the top plate 13a for rest. The book bucket 1a further comprises a bottom plate 15a, and the bottom plate 15a inclines downwards from one end arranged at the opening to one end arranged at the back, so that the bottom of the storage cavity 11a has a certain inclination to prevent articles from sliding off.

Further, as shown in fig. 3 and 4, in the second embodiment of the desk, a groove 131a is formed on the outer surface of the top plate 13a, the groove 131a is matched with the shape of the head of a human body, and the groove 131a is designed to be attached to the head according to the human engineering design, so that the requirement of the student on noon break is met, and the student feels more comfortable during noon break; and can also set up the flexible pad of one deck on recess 131a surface, material such as silica gel, the travelling comfort is greatly promoted in the time of can making the student have a rest like this. And, can also be equipped with the bleeder vent on recess 131a, the setting of bleeder vent can promote the radiating effect, avoids the problem that the student sweated in noon break.

The application still further provides a novel student desk, refer to figure 5, novel desk mainly includes book fill 1a, panel 2a and table leg 10a, table leg 10a installs in book fill 1a below, table leg 10a plays the effect of supporting book fill 1a, the horizontally setting of panel 2a is in book fill 1 a's top, and overturn between panel 2a and the book fill 1a and be connected, when panel 2a level was placed, can be used for the student to write and read the textbook, and when panel 2a overturns to vertical state, book fill 1 a's roof 13a exposes, the student can have a break in noon.

Specifically, the opening of the storage cavity 11a of the book bucket 1a is opposite to the student, and the top plate 13a is inclined downwards from one side of the opening of the storage cavity 11a to the back, so that the inside of the storage cavity 11a is more intuitively checked by the student, and the student can conveniently place and take textbooks; the panel 2a is rotatably connected with one side of the opening of the book bucket 1a, namely the panel 2a is turned and opened towards the direction of the opening of the storage cavity 11a, after the panel 2a is opened, the top plate 13a of the book bucket 1a is exposed, and students positioned on the back of the desk can obliquely lie on the top plate 13a for noon break.

Referring to fig. 6, the student desk further comprises legs 10a, the height of the legs 10a is adjustable, specifically: the table leg 10a in this application includes a supporting base 101a and a supporting rib 102a, the supporting base 101a includes a vertical rod 1011a and a horizontal rod 1012a, the vertical rod 1011a and the horizontal rod 1012a are connected to form an L-shaped structure, two supporting rods are oppositely disposed and are connected and fixed by a connecting rod 1013a, wherein the vertical rod 1011a is a hollow tube, the upper end of the vertical rod 1011a is opened with an installation opening 72a, the supporting leg is inserted into the vertical rod 1011a from the installation opening 72a, the vertical rod 1011a is correspondingly provided with a positioning hole, the supporting leg is correspondingly provided with a plurality of threaded holes, the threaded holes are uniformly arranged along the length direction of the supporting leg, one of the threaded holes is adjusted to a position opposite to the positioning hole, a bolt is screwed into the threaded hole from the outer side of the vertical rod 1011a, thereby fixing the relative positions of the vertical rod 1011a and the supporting leg, when adjusting the height of the supporting leg, the supporting legs are only required to be stretched to a preset position and then fixed through bolts.

Further, student's desk in this application still includes one set of tilting mechanism, and 1a of book end is including setting up the curb plate in the opening both sides respectively, and the curb plate is including the extension board 141a of locating storing chamber 11a top, and extension board 141a upper end level, thereby panel 2a and extension board 141 a's upper end looks butt guarantee that panel 2 a's level is placed, and tilting mechanism installs on extension board 141a, specifically: tilting mechanism in this application has mainly included locking structure 3a and elastic buffer structure 8a, can realize the location after panel 2a upset is opened through locking structure 3a, open the back with panel 2a and fix, elastic buffer structure 8a mainly used resists the traction force that panel 2a upset received when opening or the gravity that panel 2a lid closed and received, offset these power through elastic buffer structure 3a, thereby avoid the face lid to produce violent collision when opening or closed, can the noise reduction and prolong the life of desk.

Specifically, as shown in fig. 5, 6, and 7, the locking structure 3a mainly includes a lock rod 4a, one end of the lock rod 4a is rotatably connected to the panel 2a, specifically, rotatably connected in an articulated manner, the other end of the lock rod 4a is slidably connected to the bucket 1a, when the panel 2a is turned over and opened, the lock rod 4a is forced to slide on the bucket 1a, in this application, a sliding slot 7a is provided on the bucket 1a, the length direction of the sliding slot 7a is the sliding direction of the end of the lock rod 4a, the locking structure 3a further includes a sliding block 5a, the sliding block 5a is cylindrical, the lock rod 4a is provided on one side of the sliding block 5a in the axial direction, and a chuck 6a is further provided on the other side of the sliding block 5a opposite to the lock rod 4a, the chuck 6a is clamped on one side of the sliding slot 7a, the lock rod 4a is located on the other side of the sliding slot 7a, therefore, the sliding block 5a is deadly limited in the sliding groove 7a, the sliding block 5a is prevented from being separated from the sliding groove 7a, and the sliding block 5a can always slide in the sliding groove 7 a; on draw-in groove 71a located slider 5 a's gravity direction, when slider 5a slided the extreme position of spout 7a, slider 5a alright fall into draw-in groove 71a in with leaning on its gravity is automatic, draw-in groove 71a and slider 5a joint cooperation to the position of fixed locking lever 4a can be fixed a position panel 2a, when the unblock, manual with locking lever 4a lift can, with this reduce the degree of difficulty of locking lever 4a and draw-in groove 71a joint, avoid the inaccurate problem of joint.

Further, in the assembly of the lock rod 4a, the slider 5a and the sliding groove 7a, the slider 5a can be firstly installed in the sliding groove 7a in a manner that the chuck 6a and the slider 5a are spliced, and then the chuck 6a and the slider 5a are fixed. The application provides another preferable installation mode, an installation opening 72a is formed in the other end, opposite to the clamping groove 71a, of the sliding groove 7a, the chuck 6a can freely penetrate through the installation opening 72a, the sliding block 5a and the chuck 6a are integrally arranged, one side, opposite to the gravity direction of the chuck 6a, of the chuck 6a of the sliding block 5a can be directly installed into the installation opening 72a, the installation opening 72a is formed in the direction, opposite to the gravity direction of the chuck 6a, the problem that the sliding block 5a and the sliding groove 7a are assembled and failed due to the fact that the chuck 6a automatically falls into the installation opening 72a is avoided, and compared with other modes, the assembly mode is simpler and more convenient to disassemble.

Further, the two ends of the elastic buffering structure 8a are respectively fixed on the panel 2a and the book bucket 1a, the two ends of the elastic buffering structure 8a are rotatably connected with the panel 2a and the book bucket 1a through hinges, the elastic buffering structure 8a has elasticity, the damping effect can be exerted on the overturning and opening of the face cover, the panel 2a is prevented from being closed rapidly, people injury is avoided, and noise can be reduced.

Preferably, the elastic buffer structure 8a is a gas spring.

Furthermore, the turnover mechanism in the application also comprises an adapter plate 9a, the adapter plate 9a is detachably mounted on the panel 2a through bolts, the elastic buffer structure 8a, the lock rod 4a and the bucket 1a are rotatably connected with the panel 2a through the adapter plate 9a, the structural requirement of the panel 2a can be greatly reduced through the adapter plate 9a, the mounting procedures of the panel 2a and the turnover mechanism are reduced, the batch production and the assembly are facilitated, meanwhile, the damage to the structure of the panel 2a is reduced to the minimum, and the panel 2a is conveniently recycled; the buffer structure, the lock rod 4a and the book bucket 1a are all fixed with the adapter plate 9a in a hinged mode, and the rotation central shafts of the buffer structure, the lock rod 4a and the book bucket 1a are kept parallel, so that the slow overturning and locking effects of the panel 2a can be realized.

It can be understood that tilting mechanism in this application is more than including one set of this locking structure 3a and elastic buffer structure 8a, for better realization rotation effect, guarantees that the atress of panel 2a when the upset is even, and the best mode of setting respectively sets up one set of locking structure 3a and elastic buffer structure 8a in the relative both sides of panel 2a to reach the best upset effect.

Preferably, this application still is equipped with on the open-ended one side of roof 13a, bottom plate 15a, curb plate and bordures, and the edge of each plate body is wrapped to the bordure, avoids roof 13a to cause the fish tail to the student.

Furthermore, this application has still set up couple 12a outside the curb plate, and couple 12a is used for hanging articles such as student's schoolbag or handbag.

Further, as shown in fig. 8, the student desk and chair further comprises a storage bag 10 detachably mounted on the back of the backup plate, the storage bag 10 is provided with an inner cavity for storing articles, the top of the inner cavity is provided with an opening, a flip cover 101 is covered on the opening of the top of the storage bag 10, the flip cover 101 comprises a hem 1011, the hem 1011 is bent towards the storage bag 10, the inner side of the hem 1011 is attached to the outer side of the storage bag 10, the hem 1011 is fixed with the cavity wall of the inner cavity of the storage bag in a magnetic attraction manner, and the arrangement of the hem 1011 can improve the sealing performance of the storage bag 10; the storage bag 10 is close to the back surface of the backup plate 2. Through set up one set of collecting bag that can dismantle on desk chair, can provide more article storage space for the student, the book fill that sets up originally in the desk can be used for placing teaching materials such as books specially, can be used for placing student's noon break articles for use specially in the collecting bag, for example woollen blanket, eye-shade, syllable-dividing earplug etc. are convenient for like this the classification and the management of student's article.

Furthermore, the height of the chair in the present application is also set to be adjustable (the principle of adjusting the height of the chair is the same as that of the desk, and is not described herein again), so that students with different height sections can reclinely lie on the top plate 13a and the back plate 2 for noon break by adjusting the heights of the chair and the desk.

Further, refer to figure 1, 8 shows, the tablet chair includes bedplate 1, backup plate 2, leg layer board 9 and head layer board 23, wherein bedplate 1 level is placed, backup plate 2 sets up and rotates between one side of bedplate 1 and backup plate 2 to be connected, contained angle between backup plate 2 and the bedplate 1 is adjusted through adjustment mechanism, leg layer board 9 is accomodate in bedplate 1's below through direction subassembly 4, when the student needs noon break, only need lean on backup plate 2, and derive leg layer board 9, the student alright lie on the tablet chair with inclining, leg layer board 9 supports student's shank, thereby make the student possess good lunch break and experience.

Further, the adjusting mechanism comprises a first baffle body and a locking piece, wherein the seat plate 1 is horizontally placed, the backup plate 2 is arranged on one side of the seat plate 1, the seat plate 1 is rotatably connected with the backup plate 2, an included angle between the seat plate 1 and the backup plate 2 is changed by rotating the backup plate 2, the first baffle body 14 is arranged on the seat plate 1, when the backup plate 2 rotates to abut against the first baffle body 14, the angle between the backup plate 2 and the seat plate 1 is adjusted to be maximum, a student can lean against the backup plate 2 for rest, the locking piece 3 is arranged on the rotating path of the backup plate 2 between the backup plate 2 and the first baffle body 14, the locking piece 3 is provided with a supporting part 35, when the locking piece 3 abuts against the backup plate 2, the supporting part 35 provides a supporting effect for the backup plate 2, so that the inclination angle between the backup plate 2 and the seat plate 1 is minimum, and the backup plate 2 is placed close to be vertical, the student supports and leans on and can keep good position of sitting on backup plate 2, and lock 3 carries out mobile setting, and when moving lock 3 to backup plate 2 rotation route on, lock 3 can give backup plate 2 and support to with backup plate 2 restriction near vertical state, when moving lock 3 outside backup plate 2's the radius of activity, backup plate 2 breaks away from the contact with lock 3, and backup plate 2 can continue to fall the slope.

Further, referring to the first embodiment of the back plate adjusting mechanism shown in fig. 8 to 12, the seat plate 1 mainly includes a plate body 11 and a supporting frame 12, wherein the supporting frame 12 is a hollow directional frame structure, the plate body 11 is installed at the upper end of the supporting frame 12, one side of the seat plate 1 connected to the back plate 2 is a rear side, one side of the seat plate 1 opposite to the back plate 2 is a front side, and the other two sides of the seat plate 1 are left and right sides; a shaft hole is arranged at the left side and the right side of the backup plate 2, a connecting disc 13 is arranged above the supporting frame 12, the connecting disc 13 is correspondingly arranged at the shaft hole at the left side and the right side of the backup plate 2, a rotating shaft 16 is arranged in the connecting disc 13 and the shaft hole, and the backup plate 2 is rotatably connected with the seat plate 1 through the rotating shaft 16; a first blocking body 14 and a second blocking body 15 are further arranged on the supporting frame 12, the first blocking body 14 and the second blocking body 15 in the embodiment are both provided with rod pieces with rectangular sections, the first blocking body 14 and the second blocking body 15 are arranged in parallel, the second blocking body 15 is arranged on the rear side of the supporting frame 12, and the first blocking body 14 is arranged at a position close to the front side of the second blocking body 15; two abutting heads 21 are arranged at the bottom of the backup plate 2, the abutting heads 21 extend downwards and penetrate through the support frame 12, the abutting heads 21 are arranged below the rotating shaft 16, and the abutting heads 21 are positioned between the first gear 14 and the second gear 15, so that the abutting heads 21 can only rotate between the first gear 14 and the second gear 15 when rotating, the range of the inclination angle of the backup plate 2 is limited, the first gear 14 is arranged at the front side of the abutting heads 21, when the abutting heads 21 abut against the first gear 14, an included angle of 150 degrees is formed between the backup plate 2 and the seat plate 1, so that students can conveniently lie on the backup plate 2 in an inclined manner for noon break, when the abutting heads 21 abut against the second gear 15, an included angle of 100 degrees is formed between the backup plate 2 and the seat plate 1, at the moment, the backup plate 2 cannot continue to rotate towards the seat plate 1, the included angle between the seat plate 1 and the backup plate 2 support is minimum, and the locking piece 3 abuts against the abutting heads 21, the backup plate 2 is prevented from rotating in the direction of the first rail 14, that is, the backup plate 2 is prevented from increasing in inclination angle, and the backup plate 2 is fixed at a position of 100 ° (close to vertical).

Further, still be equipped with an elasticity piece 31 that resets between locking piece 3 and the bedplate 1, elasticity piece 31 that resets draws locking piece 3 to move towards bedplate 1 direction, draws locking piece 3 to move on the rotation route of butt head 21 promptly, makes locking piece 3 can provide stable butt to butt joint 21, places backup plate 2 and rotates at will.

Further, the locking member 3 in the present application is composed of two links 32 and an operating lever 33, the two links 32 are disposed oppositely and in parallel, two ends of the operating lever 33 are respectively connected with the two links 32, and the ends of the two links 32 in the same direction are connected and fixed with the operating lever 33, so as to form a U-shaped structure; the end of the connecting rod 32 far away from the operating rod 33 is an abutting end 323, an upper connecting plate 324 is further arranged above the connecting rod 32, a first mounting part 321 and a second mounting part 322 are arranged on the upper connecting plate 324, a corresponding lower connecting plate 17 is arranged below the seat plate 1, the first mounting part 321 is hinged with the seat plate 1 of the lower connecting plate 17, the second mounting part 322 is used for connecting the elastic reset piece 31, the first mounting part 321 is close to one end far away from the operating rod 33, the abutting part 35 is arranged at one end of the connecting rod 32 near the operating rod 33, the second mounting part 322 is arranged between the first mounting part 321 and the abutting part 35, so that when the operating rod 33 is pressed downwards, the first mounting part 321 provides a fulcrum function, the abutting part 35 rotates towards the direction far away from the seat plate 1, the abutting effect on the abutting joint 21 is cancelled, the abutting head 21 can rotate towards the direction of the first block 14, and when the operating rod 33 is stressed, the elastic reset piece 31 can drive the locking piece 3 to return, the abutting part 35 continuously falls to the rotating path of the abutting head 21, and one side of the abutting part 35 facing the first gear 14 is provided with an inclined transition section, so that the abutting part 35 forms a hill shape with the size decreasing from bottom to top, therefore, only by manually swinging the backup plate 2, the abutting head 21 of the backup plate 2 can jack the abutting part 35 until the abutting head 21 and the abutting part 35 are separated from abutting at a high point, at the moment, the abutting part 35 automatically returns, the slopes at two sides of the abutting part 35 have larger difference, the slope of the abutting part 35 facing one side of the first gear 14 is smaller, the slope of the abutting part 35 facing one side of the second gear 15 is larger, thus when the inclination angle of the backup plate 2 is adjusted from large to small, the abutting head 21 can synchronously abut against the abutting part 35 to move, the backup plate 2 can be adjusted to be close to vertical, and when the inclination angle of the backup plate 2 is adjusted from small to large, the abutting part 35 is difficult to be synchronously pushed open by the abutting head 21, and the stability of the backup plate 2 in the state of being close to the vertical state is ensured.

Preferably, the length of the connecting rod 32 can be properly lengthened, so that the connecting rod 32 can extend to the outer side of the horizontal direction of the seat plate 1, and the operating lever 33 is correspondingly arranged at the outer side of the downward mapping range of the seat plate 1, so that a student can directly press the operating lever 33 conveniently without needing to insert a hand below the seat plate 1 to perform corresponding operation, and the operation convenience of the locking member 3 is improved.

Further, the distance from the abutting end 323 of the connecting rod 32 to the first mounting portion 321 is greater than the distance from the first mounting portion 321 to the base, so that when the operating lever 33 is pressed down, the abutting end 323 of the connecting rod 32 can rotate upwards with the first mounting portion 321 as a center, the abutting end 323 can abut against the lower side of the seat plate 1, the operating lever 33 cannot be pressed down continuously, the traction force applied to the elastic resetting piece 31 cannot increase unlimitedly, a good protection effect can be provided for the elastic resetting piece 31, the situation that the elastic resetting piece 31 is prone to failure is avoided, and the service life of the chair is prolonged.

Preferably, the elastic restoring member 31 in this application may also be a spring, and the spring is connected to the first stopper 14.

Further, as shown in fig. 13, a stiffener 22 is further disposed on the backup plate 2 in the present application, the stiffener 22 is a square tube, a clamping groove is disposed on the back side of the backup plate 2, the clamping groove is elongated and is disposed from top to bottom, the stiffener 22 is fixed in the clamping groove, the stiffener 22 is detachably mounted in the clamping groove through a bolt at a later stage, a lower end portion of the stiffener 22 extends to a lower portion of the backup plate 2, the abutting head 21 is an extending end of the stiffener 22 extending out of the backup plate 2, on one hand, the stiffener 22 can enhance the structural strength of the backup plate 2, on the other hand, in a manner that the abutting head 21 is directly integrated with the backup plate 2, the strength of the abutting head 21 can be higher, and the service life of the abutting head 21 is longer. In order to provide better coating for the reinforcing rods 22, two pairs of clamping plates 24 are correspondingly arranged at the lower end of the backup plate 2, the clamping plates 24 are connected to two groove wall positions of the clamping groove, each pair of clamping plates 24 corresponds to one reinforcing rod 22, and the reinforcing rods 22 are clamped by the two clamping plates 24, so that under the action of the clamping plates 24, the situation that a square tube made of metal materials generates great noise when abutting against the first gear block 14, the second gear block 15 or the abutting part 35 can be well avoided, and the influence on noon break of students is further avoided.

Further, a handle hole 25 is provided above the backup plate 2, so that the inclination of the backup plate 2 can be easily adjusted by the handle.

Preferably, the elastic return member 31 is a spring; in the above embodiment, the spring is provided on the side of the first mounting portion 321 near the operating lever 33, which provides the urging force for pulling the lock member 3 toward the seat plate 1, while in other embodiments, the spring may be provided on the side of the first mounting portion 321 near the abutting end 323, which provides the urging force for urging the lock member 3 away from the seat plate 1.

Referring to fig. 14 and 15, the working principle of the present application is:

in the class mode, the abutting head 21 abuts against the second gear 15 and the abutting part 35, the backup plate 2 is limited to be close to the vertical position, and the rotating shaft 16 of the backup plate 2, the second gear 15 and the abutting part 35 fix the backup plate 2 and the seat plate 1 in a stable 100-degree slightly-inclined state for a student to sit down as a backrest.

When changing from class mode to lunch break mode: the student slightly presses the operating lever 33 downwards, meanwhile slightly pushes the backup plate 2, the operating lever 33 rotates downwards through the first mounting portion 321, at the moment, the abutting portion 35 leaves the rotating path of the abutting head 21, the abutting effect on the abutting head 21 is cancelled, the backup plate 2 rotates backwards until the abutting head 21 abuts against the first gear 14, the backup plate 2 and the seat plate 1 are in a 150-degree close lying state, the midday mode is changed, and the student can lie on the backup plate for midday rest.

When switching from noon mode to class mode: the student slightly presses the operating lever 33 downwards (or does not press downwards), the backing plate 2 is slightly lifted, the abutting part 35 avoids the abutting head 21 to rotate, when the abutting head 21 of the backing plate 2 abuts on the second gear 15, the elastic resetting piece 31 pulls the locking piece 3 to return, the abutting part 35 abuts on the abutting head 21 at the same time, and the backing plate 2 and the seat plate 1 are fixed in a stable 100-degree slightly-inclined state through the rotating shaft 16 of the backing plate 2, the second gear 15 and the abutting part 35, so that the student can sit down as a backrest.

Referring to fig. 16 to 18, in a second embodiment of the backrest adjustment mechanism, the support frame 12 is a hollow directional frame structure (also an integral part of the support leg), and the plate 11 is installed at the upper end of the support frame 12, wherein one side of the seat plate 1 connected to the backrest 2 is a rear side, one side of the seat plate 1 opposite to the backrest 2 is a front side, and the other two sides of the seat plate 1 are left and right sides; a shaft hole is arranged at the left side and the right side of the backup plate 2, a connecting disc 13 is arranged above the supporting frame 12, the connecting disc 13 is correspondingly arranged at the shaft hole at the left side and the right side of the backup plate 2, a rotating shaft 16 is arranged in the connecting disc 13 and the shaft hole, and the backup plate 2 is rotatably connected with the seat plate 1 through the rotating shaft 16; a first gear 14 and a second gear 15 are further arranged on the support frame 12, the first gear 14 and the second gear 15 in the embodiment are both integrally arranged on the connecting disc, the second gear 15 is arranged on the rear side of the support frame 12, and the first gear 14 is arranged at a position close to the front side of the second gear 15; the backup plate 2 is provided with two reinforcing rods 22, the reinforcing rods 22 are hollow bent pipes, the back of the backup plate 2 is provided with a clamping groove, the reinforcing rods 22 are fixed in the clamping groove, the reinforcing rods 22 are detachably installed in the clamping groove through bolts at the later stage, the lower end parts of the reinforcing rods 22 extend to the lower part of the backup plate 2, the abutting heads 21 are metal sheet metal parts arranged at the extending end parts of the reinforcing rods 22, the reinforcing rods 22 can enhance the structural strength of the backup plate 2 on one hand, on the other hand, the strength of the abutting heads 21 is higher compared with the mode that the abutting heads 21 are directly and integrally arranged with the backup plate 2, the service life of the abutting heads 21 is longer, the abutting heads 21 are positioned between the first gear 14 and the second gear 15, so that the abutting heads 21 can only rotate between the first gear 14 and the second gear 15 during rotation, and the range of the inclination angle of the backup plate 2 is limited, first shelves 14 set up the front side at the butt head 21, when butt head 21 with first shelves 14 looks butt, be 150 contained angles between backup plate 2 and the bedplate 1, thereby make things convenient for the student to lie to carry out noon break on backup plate 2, when butt head 21 and the looks butt of second shelves 15, be 100 contained angles between backup plate 2 and the bedplate 1, backup plate 2 can't continue to rotate towards bedplate 1 this moment, the contained angle of bedplate 1 and backup plate 2 support reaches the minimum, locking piece 3 supports and leans on the butt head 21 simultaneously, prevent backup plate 2 to rotate towards the direction of first shelves 14, prevent 2 inclination grow of backup plate promptly, thereby fix backup plate 2 on 100 (being close to vertical) positions.

Further, the lock member 3 in the second embodiment is composed of two upper connection plates 324 and one operation lever 33, two links 32 are disposed oppositely and in parallel, and two ends of the operation lever 33 are respectively connected with the two upper connection plates 324; the upper connecting plate 324 is provided with a first mounting portion 321 and a second mounting portion 322, the first mounting portion 321 is hinged to the connecting disc 13, the second mounting portion 322 is used for connecting the elastic reset piece 31, the first mounting portion 321 is close to one end far away from the operating rod 33, the second mounting portion 322 is arranged between the first mounting portion 321 and the abutting portion 35, so that when the operating rod 33 is pressed downwards, the first mounting portion 321 provides a fulcrum effect, the abutting portion 35 rotates towards the direction far away from the seat plate 1, the abutting effect of the abutting head 21 is cancelled, the abutting head 21 can rotate towards the direction of the first gear body 14, after the stress of the operating rod 33 disappears, the elastic reset piece 31 can drive the locking piece 3 to return, and the abutting portion 35 continues to fall on a rotating path of the abutting head 21.

One end of the upper connecting plate 324 close to the second mounting portion 322 is an abutting end 323 abutting against the seat plate 1, the distance from the abutting end 323 to the first mounting portion 321 is larger than the distance from the first mounting portion 321 to the base, so that when the operating lever 33 is pressed down, the abutting end 323 can abut against the lower side of the seat plate 1, the operating lever 33 cannot be pressed down continuously, the traction force applied to the elastic reset piece 31 cannot increase unlimitedly, a good protection effect can be provided for the elastic reset piece 31, the situation that the elastic reset piece 31 fails easily is avoided, and the service life of the tablet chair is prolonged.

Further, tablet chair in this application still includes supporting leg 18, supporting leg 18 includes supporting seat 181 and regulation pole 182, supporting seat 181 be equipped with the sleeve, telescopic open-top, it penetrates inside the sleeve to adjust pole 182 from telescopic top, and adjust the bottom that pole 182 is connected at the bedplate, it is provided with a plurality of screw hole evenly to adjust pole 182 in its direction of height, relative be equipped with set screw outside the sleeve, adjust pole 182 and adjust suitable height, use set screw to adjust the pole location, thereby can adjust the tablet chair to suitable high on.

Further, as shown in fig. 19 and 20, the student chair further includes a head support plate 23 and a telescopic rod 26, a through opening is provided at the upper end of the backup plate, the telescopic rod 26 is a rod, the reinforcing rod 22 has an upper port, the reinforcing rod 22 is a hollow pipe, the upper section of the reinforcing rod 22 is a straight section, the telescopic rod 26 can penetrate through the upper port of the reinforcing rod 22, a damping sleeve 27 is further provided between the reinforcing rod 22 and the telescopic rod 26, the damping sleeve 27 is provided between the telescopic rod 26 and the reinforcing rod 22, and the damping sleeve 27 is fixed inside the reinforcing rod 22 to allow the telescopic rod 26 to slide up and down along the reinforcing rod 22 and maintain the relative position after sliding through damping force.

Furthermore, one end of the damping sleeve 27 is assembled at the lower end of the telescopic rod 26, and the other end thereof is protruded outwards to form an abutting flange 271, and the abutting flange 271 can abut against the outside of the upper port of the reinforcing rod 22; that is, the expansion link 26 is abutted against the inner wall surface of the reinforcing rod 22 through the damping sleeve 27 to form friction damping, and the abutting flange 271 is further provided with a positioning glass bead 28, a ball part of the positioning glass bead 28 protrudes out of the inner side of the damping sleeve 27, the positioning glass bead 28 is in close contact with the expansion link 26, a plurality of positioning holes 261 are uniformly arranged in the length direction of the expansion link 26, after the expansion link 26 extends out for a certain length, the positioning glass bead 28 is embedded into one of the positioning holes 261, so that the head support plate 23 is fixed at a certain position, that is, when the expansion link 26 adjusts the expansion length, the expansion link 26 is pulled to separate from the original positioning hole 261, after the expansion link 26 is adjusted to the required length, the positioning glass bead 28 is clamped to the corresponding positioning hole 261, so that the expansion link 26 is locked on the reinforcing rod 22 again. That is to say, the length can be adjusted step by step according to different locating holes 261 on the stiffener 22 to the telescopic link, and then makes the telescopic link can adjust its flexible length wantonly at certain length within range, through sliding the telescopic link to suitable distance to thereby fix telescopic link 26 and head layer board 23 and adjust the interval between head layer board and the telescopic link, can be applicable to the student individual of different heights.

And for preventing telescopic link 26 and stiffener 22 from breaking away from, this application still is equipped with a locating pin 262 at the tip of telescopic link 26 to be equipped with a draw-in groove 272 on damping cover 27, draw-in groove 272 sets up with locating pin 262 relatively, and when stretching out telescopic link 26 extreme position, locating pin 262 slides in the middle of to draw-in groove 272, offsets with damping cover 27, thereby prevents that telescopic link 26 from breaking away from stiffener 22.

Preferably, the back of the back plate 2 is also provided with a hook 29 for hanging the student articles.

Further, referring to fig. 21 to 25, the guide assembly 4 includes a guide 41, the guide 41 is fixed on the tablet chair, and the leg support plate 9 is movably connected to the guide 41, so as to ensure that the leg support plate 9 moves on the guide 41, wherein the guide 41 is mainly used for guiding the leg support plate 9 to the position right below the seat plate 1 for storage, and when a student goes to school, the leg support plate 9 can be pushed to move on the guide 41 without using the leg support plate 9, so as to move the leg support plate 9 to the position below the seat plate 1.

Specifically, the guide 41 in this embodiment is a pair of horizontally disposed guide rails, the guide rails are fixed on the first blocking body 14 and are disposed right below the seat plate 1, the guide rails are directly fixed with the seat, a sliding groove 42 is disposed on the guide rails, a baffle 43 is disposed at a notch of the sliding groove 42, and the baffle 43 is disposed at two sides of the notch of the sliding groove 42 in the length direction; the two opposite sides of the leg supporting plate 9 are respectively provided with a sliding part 5, the sliding parts 5 are arranged in the sliding grooves 42, so that the sliding parts 5 can slide in the sliding grooves 42, the leg supporting plate 9 is driven to slide along the guide rails, the sliding parts 5 can be limited in the sliding grooves 42 by the baffle plates 43, the sliding parts 5 are prevented from being separated from the sliding rails from the notches, and the stable sliding of the sliding rails in the sliding grooves 42 is ensured. In order to ensure that the sliding part 5 does not depart from the sliding groove 42 in the length direction of the sliding groove 42, two end positions of the sliding groove 42 of the guide rail are respectively provided with a limiting block 6, the limiting blocks 6 block the sliding path of the sliding part 5, so that the sliding part 5 can only slide between the two limiting blocks 6, and the stable sliding of the leg supporting plate 9 on the guide rail can be realized through the limiting blocks 6 and the baffle plates 43. In other embodiments, the guiding element 41 may also be configured as a sliding rod, the sliding element 5 is sleeved on the sliding rod for sliding, and the limiting block 6 is directly sleeved and fixed on two ends of the sliding rod, so that the sliding element 5 can be limited on the sliding rod.

Specifically, spout 42 both ends run through in this application, spout 42 is gone into from spout 42's tip to stopper 6, be equipped with chuck 61 on stopper 6, when pack into inside spout 42 with stopper 6, chuck 61 card is in spout 42's outside, middle part correspondence at stopper 6 is provided with catching groove 62, be provided with corresponding through-hole 44 in the outside of guide rail, catch groove 62 and through-hole 44 correspond when the installation, use bolt 8 to penetrate through-hole 44 and catching groove 62 in proper order from the guide rail outside, thereby fix stopper 6 inside spout 42, stopper 6 alright fix on the guide rail like this, neither can deviate from nor corresponding slip, this kind of fixed mode is simple easy to operate, greatly saved assembly efficiency.

Further, a bracket 7 is arranged below the leg supporting plate 9, the bracket 7 is detachably mounted below the leg supporting plate 9, and the leg supporting plate 9 is connected with the sliding piece 5 through the bracket 7; the support 7 is provided as a group of bent rod pieces, the support 7 is bent in a U shape, the support 7 comprises two parallel support rods 71, the support 7 and the leg supporting plate 9 are fixed through a fixing code 72, a support 7 fixing groove (not shown) is designed on the back of the leg supporting plate 9, the support 7 is placed in the support 7 fixing groove, the fixing code 72 is pressed on one side of the support 7 opposite to the leg supporting plate 9, the fixing code 72 and the leg supporting plate 9 are fastened through a bolt 8, and the fixing code 72 and the leg supporting plate 9 can be fixed in a clamping manner in other embodiments; two opposite sides of the leg supporting plate 9 are respectively provided with a guide rail, each supporting rod 71 corresponds to one guide rail, the supporting rods 71 are arranged on the inner sides of the two guide rails, the supporting rods 71 are directly connected with the sliding parts 5, the supporting rods 71 are rotatably connected with the sliding parts 5, the sliding parts 5 positioned on two sides of the leg supporting plate 9 are coaxial, the axes of the two sliding parts 5 are the rotating axes of the leg supporting plate 9, the leg supporting plate 9 can rotate by taking the two sliding parts 5 as the axes, and the inclination angle of the leg supporting plate 9 is adjusted by rotating the leg supporting plate 9, so that the leg supporting plate 9 can support the shank part at a more comfortable position.

This application has still further provided this leg layer board 9's location structure, location structure is including location portion 73, location portion 73 sets up the tip position at the bracing piece 71 of support 7, when leg layer board 9 and bedplate 1 are horizontal, location portion 73 and bedplate 1 between contactless, leg layer board 9 can horizontal slip on the guide rail, when leg layer board 9 rotation, location portion 73 offsets with bedplate 1, the position between leg layer board 9 and bedplate 1 keeps fixed unchangeable promptly, thereby it limits leg layer board 9's rotation range to offset with bedplate 1 through location portion 73, fix location portion 73 at best inclination position.

Further, a clamping groove 63 is further formed in the limiting block 6, the clamping groove 63 is a through groove, clamping grooves 63 are provided with clamping openings at two ends parallel to the length direction of the guide rail, the clamping groove 63 enables two ends, located on the length direction of the guide rail, of the limiting block 6 to penetrate through, lugs 91 are arranged on the leg supporting plate 9, the lugs 91 are arranged on the side portion, opposite to the guide rail, of the leg supporting plate 9, the lugs 91 are arranged on two sides of the leg supporting plate 9 respectively, when the leg supporting plate 9 needs to be stored, the leg supporting plate 9 is pushed to horizontally slide on the guide rail, the lugs 91 horizontally slide on the guide rail along with the leg supporting plate 9, when the lugs 91 slide into the clamping grooves 63, the pushing of the leg supporting plate 9 is stopped, the lugs 91 are clamped in the clamping grooves 63 at the moment, the leg supporting plate 9 can be horizontally placed below the seat plate 1, and the leg supporting plate 9 can be stored.

Further, in a preferred embodiment, the lugs 91 and the sliding members 5 are respectively provided on the side portions of the leg rest 9, and the lugs 91 and the sliding members 5 are located in both the front and rear orientations of the leg rest 9, so that a supporting effect can be exerted on the leg rest 9 at positions near the four corners, thereby uniformly supporting the leg rest 9.

Further, the front of leg layer board 9 is according to human engineering design curved surface and is made shape, sets up the recess that agrees with human shank on leg layer board 9 to design a lot of bleeder vents that distribute evenly at these recess middle parts, slightly promote the both sides on leg layer board 9 surface, make student's shank can be very comfortable paste and lean on leg layer board 9, at the surperficial anti-skidding line of design of leg layer board 9, prevent that student's shank from gliding.

Preferably, slider 5 in this application is the gyro wheel, and the gyro wheel can effectively reduce the resistance that slides, and noise reduction promotes user experience and life.

Referring to figures 1 and 26, there is shown in figure 1a schematic view of a first embodiment of a desk and a first embodiment of a chair, and in figure 26 a schematic view of a second embodiment of a desk and a second embodiment of a chair, the leg rest structure in figure 26 is identical to the structure in figure 1 and is not shown.

The process of the student's noon break in this application does:

when a student needs lunch break, the top plate 13a of the book bucket 1a is exposed and the operating rod 33 is pressed downwards slightly while the back plate 2 is pushed slightly, the operating rod 33 rotates downwards with the first mounting part 321, the abutting part 35 leaves the rotating path of the abutting head 21, the abutting effect on the abutting joint 21 is cancelled, the back plate 2 rotates backwards until the abutting head 21 abuts against the first baffle 14, the back plate 2 and the seat plate 1 are in a 150-degree approximately lying state, the leg supporting plate 3 is pulled out from the guide rail manually until the sliding part 5 abuts against the front limiting block 6, the leg supporting plate 3 does not slide any more, at the moment, the leg supporting plate 3 rotates under the action of gravity until the positioning part 73 abuts against the seat plate 1, the student leans against the back plate 2 obliquely, the head of the student rests on the top plate 13a, the student can have a lunch break by placing the legs on the leg supporting plate 3. Generally, when the student in this application is in noon break, only need carry out three steps of regulation, can carry out noon break, neither need remove desk and chair, also need not many desks and chairs and carry out adjustment by a wide margin, can fine solution student noon break difficult problem, simultaneously, the desk chair is little at the in-process noise that changes, does not influence other students and has a rest.

Preferably, the front-back distance of the desk in the application is only 90CM at least, 45-48 desk and chair can be placed in one existing standard classroom, and the actual situation of the existing school is adapted; and noon break desk chair is applicable 1.2 meters to 2.0 meters height student, and the seat can bear 150KG weight noon break, and the design has been widened to the seat cushion, and the student can put in both sides when noon break, and noon break is more comfortable.

Furthermore, the chair for the noon body is specially designed to be breathable, and the seat board, the backup board, the leg supporting plate and the head supporting plate are all provided with the air holes, so that the problem of ventilation of the noon body in hot summer is solved.

In addition, the desk and chair in the application adopts the optimized modular design, the lower half part is less in shielding, and the student can clean conveniently.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A student desk and chair, comprising:

the desk comprises a book bucket, the book bucket comprises a top plate which is obliquely arranged, the book bucket comprises a storage cavity, the storage cavity comprises an opening and a back part which is opposite to the opening, and the top plate is obliquely downwards inclined from one end which is arranged at the opening to one end which is arranged at the back part;

the tablet chair comprises a seat board, a backup plate and leg supporting boards, wherein an included angle between the backup plate and the seat board is adjustable, the leg supporting boards and the seat board are movably connected through guide assemblies, and the guide assemblies are used for guiding the leg supporting boards to move and be accommodated below the seat board.

2. The student desk and chair of claim 1 wherein the desk further comprises a panel disposed over the bucket and connected to the bucket in a flip-over manner.

3. The student desk and chair of claim 2 wherein the desk further comprises a turnover mechanism, the turnover mechanism comprises a locking mechanism, the locking mechanism comprises a locking bar, one end of the locking bar is rotatably connected with the panel, the other end of the locking bar is slidably connected with the bucket, and the bucket further comprises a slot on the desk body for positioning the locking bar in a clamping manner.

4. The student desk and chair of claim 1 wherein the top plate has a groove matching the shape of the human head, the groove having air holes.

5. The student desk and chair of claim 3 wherein the turnover mechanism further comprises a resilient buffer structure, both ends of the resilient buffer structure are rotatably connected with the panel and the book bucket respectively.

6. A student desk and chair as claimed in claim 1 wherein the chair further comprises an adjustment mechanism comprising:

the first gear is arranged on the backup plate rotating path and used for abutting against the backup plate;

the locking piece, the locking piece movably is located between backup plate and the first gear, the locking piece activity extremely backup plate rotate on the route with the backup plate butt, the locking piece activity extremely outside the backup plate rotates the route in order to with the backup plate breaks away from the butt.

7. A student desk and chair as claimed in claim 6 wherein the locking member comprises:

the upper connecting plates comprise first mounting parts, second mounting parts and abutting parts, the first mounting parts are hinged with the seat plate, and the abutting parts abut against the backup plate;

the operating rod is connected between the two upper connecting plates, one end, far away from the operating rod, of each upper connecting plate is an abutting end abutted against the seat plate, and the distance from the abutting end to the first mounting part is larger than the distance from the first mounting part to the base;

the elastic reset piece is connected with the second installation part and the seat plate, the first installation part is arranged at one end of the operating rod, and the second installation part is arranged between the first installation part and the abutting part.

8. The student desk and chair of claim 7 wherein the back plate comprises a rotating shaft and an abutting head, the rotating shaft is horizontal, the abutting head is arranged below the rotating shaft, and the abutting head is used for abutting against the abutting part and the first blocking body;

the seat board comprises a support frame, a second blocking body and the first blocking body are arranged on the support frame, the second blocking body is used for being abutted to the abutting joint head, the first blocking body and the second blocking body are respectively arranged on two sides of the abutting joint head, and the abutting joint head swings between the first blocking body and the second blocking body.

9. The student desk and chair according to claim 1, wherein the guiding assembly comprises a guiding member, the guiding member is a pair of guide rails, the leg support plate is provided with a sliding member, the leg support plate is rotatably connected with the sliding member, the sliding member is coaxially arranged on two sides of the leg support plate, the sliding member is arranged on the guide rails, two ends of the guide rails are provided with limit blocks, the limit blocks can be abutted against the sliding member, the sliding member slides between the two limit blocks, the limit blocks are provided with clamping grooves, the leg support plate is provided with lugs, the lugs are arranged in the clamping grooves, and two ends of the clamping grooves parallel to the length direction of the guide rails are provided with clamping openings for the lugs to slide through.

10. The student desk and chair of claim 1 wherein the height of the desk and chair is adjustable, and the student chair further comprises a head rest assembly detachably mounted on the back plate, the head rest assembly comprising a head support plate and a telescoping rod, the telescoping rod being connected between the back plate and the head support plate, the telescoping rod being configured to adjust the distance between the back plate and the head support plate.

Images