CN114698942B

CN114698942B - Multifunctional student chair

Info

Publication number: CN114698942B
Application number: CN202210169370.2A
Authority: CN
Inventors: 许惠阳; 叶贻灿
Original assignee: Fujian Hui'an Zhenhui Furniture Co ltd
Current assignee: Fujian Hui'an Zhenhui Furniture Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2024-12-06
Anticipated expiration: 2042-02-23
Also published as: CN114698942A

Abstract

The application relates to a multifunctional student chair, which comprises a base, a seat assembly and a desk assembly, wherein the seat assembly and the desk assembly are respectively fixed above the base, the seat assembly and the desk assembly are arranged at intervals, the seat assembly comprises a seat frame used for being fixed with the base and a chair back rotatably installed on the seat frame, an angle adjusting structure is arranged between the chair back and the seat frame and used for adjusting the relative angle between the chair back and the seat frame, the desk assembly comprises a desk frame used for being fixed with the base and a desk table fixed above the desk frame, a baffle plate is rotatably installed on one side, far away from the seat assembly, of the desk frame, a limit column used for positioning the baffle plate is arranged on the inner side of the desk frame, and when the baffle plate rotates to be abutted against the limit column, the baffle plate faces upwards. The multifunctional student chair has the effect of improving the noon break quality of students.

Description

Multifunctional student chair

Technical Field

The application relates to the technical field of seat tool manufacturing, in particular to a multifunctional student chair.

Background

Desk and chair are the main facilities of student's class and study, and along with modern economic technology's development, the kind of desk and chair in market is various.

For students in junior and high school, more students choose to take lunch and noon break in school due to higher pressure in the courseware, and the students can only sit on a chair and lie on a desk for rest, so that phenomena such as hand numbness and neck soreness are easily caused, the noon break quality of the students is reduced, and the afternoon listening efficiency of the students is affected.

Disclosure of Invention

In order to improve the noon break quality of students, the application provides a multifunctional student chair.

The application provides a multifunctional student chair which adopts the following technical scheme:

A multifunctional student chair comprises a base, and a seat assembly and a desk assembly which are respectively fixed above the base, wherein the seat assembly and the desk assembly are arranged at intervals; the seat assembly comprises a seat frame and a seat back, wherein the seat frame is used for being fixed with the base, the seat back is rotatably arranged on the seat frame, and an angle adjusting structure is arranged between the seat back and the seat frame and used for adjusting the relative angle between the seat back and the seat frame;

the desk assembly comprises a desk frame and a desk table, wherein the desk frame is used for being fixed with a base, the desk table is fixed above the desk frame, a baffle is arranged on one side, far away from the seat assembly, of the desk frame in a rotating mode, a limiting column used for positioning the baffle is arranged on the inner side of the desk frame, and when the baffle rotates to be propped against the limiting column, the baffle is upwards arranged.

By adopting the technical scheme, the seat assembly can be used as a chair by students, the desk assembly can be used as a desk by students, and when the students noon are in noon on school, the relative angle between the seat back and the seat frame can be adjusted by means of the angle adjusting structure, so that the seat back can be put flat, and the students can conveniently lie on the seat assembly for rest when in noon on the noon.

In addition, the baffle rotates to the vertical position at ordinary times to play a role in shielding and protecting, so that the possibility that students are knocked by objects in front can be reduced when the seat assembly and the feet are placed below the desk assembly, and when the students are in noon break, the baffle rotates to the position abutting against the limiting post, the baffle faces upwards at the moment, the students can place the feet on the baffle after lying down, the comfort level of the students is further improved, and the noon break quality and the afternoon break efficiency of the students are further improved.

The chair comprises a chair frame, a chair seat, a chair back, a chair seat and a chair, wherein the chair frame comprises two connecting rods which are vertically arranged and a chair seat which is arranged between the two connecting rods;

the angle adjusting structure comprises a clamping piece arranged at the top end of the connecting rod and a movable groove arranged at the bottom of the handrail, wherein the extending direction of the movable groove is in the same direction as the extending direction of the handrail, a plurality of clamping plates arranged at intervals are fixed on the inner top wall of the movable groove, and the clamping piece is matched and clamped with the clamping plates.

By adopting the technical scheme, the clamping piece can drive the chair back to rotate around the rotating connection part of the chair back and the chair seat when moving along the extending direction of the movable groove in the movable groove, so that the angle between the chair back and the chair frame is adjusted, and after the angle of the chair back is adjusted, the clamping piece is clamped on the clamping plate at the corresponding position, so that the chair back can be fixed, and students can rest on the chair back.

Optionally, the clamping piece comprises an integrally formed connecting part and a clamping part, the connecting part is fixedly connected with the connecting rod, the clamping part is partially exposed out of one side of the connecting rod, which is close to the desk assembly, a clamping groove is formed in one side of the clamping plate, which is close to the inner top wall of the movable groove, and one side of the clamping part, which is exposed out of the connecting rod, is matched with the clamping groove.

By adopting the technical scheme, the clamping part is exposed out of one side of the connecting rod and clamped into the clamping groove of the clamping plate, so that the effect of fixing the armrest and the connecting rod can be achieved, and the angle of the chair back is fixed. When the angle of the chair back is required to be adjusted, the clamping part and the clamping plate can be separated by sliding the armrests along the direction close to the desk assembly, the clamping part and the clamping plate can be dislocated by lifting the armrests upwards at the moment, the relative position of the connecting rod and the armrests can be changed by moving the armrests at the moment, so that the angle of the chair back relative to the chair seat is changed, after the angle of the chair back is determined, the armrests are pressed downwards to enable the clamping part to move to the outer side of the clamping plate again, and finally the armrests slide along the direction far away from the desk assembly, so that the clamping part can be clamped into the clamping groove again.

Optionally, the connecting portion is connected with the spliced pole that runs through in the joint board both sides, the axial length of spliced pole is greater than the notch width of movable groove.

Through adopting foretell technical scheme, the setting of spliced pole can play the effect that the restriction connecting piece breaks away from the movable groove to improve student's convenience of adjusting back of the chair angle.

The two connecting rods are respectively connected to the base in a rotating mode, one of the two connecting rods is a telescopic rod, the telescopic rod comprises a first pole and a second pole, the first pole is arranged in a hollow mode, the first pole is connected to the base in a rotating mode, the second pole is arranged above the first pole, the seat is hinged to the second pole, and a length adjusting mechanism is arranged between the first pole and the second pole and used for adjusting the distance between the first pole and the second pole.

By adopting the technical scheme, one connecting rod is set to be the telescopic rod, the length of the telescopic rod is changed by virtue of the length adjusting mechanism, and the whole chair frame can rotate and incline towards one direction, so that students lying on the seat assembly can lie on one side and roll feet, and the occupied floor space of the students lying on the seat assembly is reduced. In addition, the situation that the students lie on one side for rest can be reduced, so that the situation that part of the students snore to influence rest of other students is reduced, and the noon break quality of the students is further improved.

Optionally, the length adjusting mechanism comprises a fixed sleeve which spans the inside of the first pole and the second pole, two groups of pushing components which are respectively arranged at two ends of the fixed sleeve in the extending direction, and a driving component for driving the pushing components to operate;

the pushing assembly comprises a thread seat fixed in the first pole/second pole and a screw rod in threaded connection with the thread seat, wherein the screw rod is rotationally connected in the fixed sleeve through a rotating seat;

The driving assembly comprises a rotating handle penetrating through the fixed sleeve and a second bevel gear coaxially fixed on the rotating handle, the second bevel gear is meshed with the two first bevel gears at the same time for transmission, and when the second bevel gear rotates, the two thread seats move in the directions away from each other or approaching each other.

By adopting the technical scheme, when the length of the telescopic rod is required to be adjusted, students can hold and rotate the rotating handle, the rotating handle can reversely rotate the second bevel gear and the two first bevel gears meshed with the second bevel gear, so that the two screw rods correspondingly connected with the first bevel gears are driven to rotate, the two screw thread seats can move in the directions away from each other or close to each other by the rotation of the screw rods, and therefore the first post rod and the second post rod are driven to move each other, and the length of the telescopic rod is adjusted.

Optionally, a cushion is mounted between the chair back and the chair seat, a pillow is also arranged on the cushion, the pillow is movably sleeved on the cushion, an inner pocket is arranged on one side surface of the pillow, and the pillow is sleeved on the armrest through the inner pocket.

Through adopting foretell technical scheme, the setting of cushion can improve student and sit the comfort level on the seat subassembly, and the setting of pillow can fill up at student's waist or neck, also is favorable to improving student's comfort level. When students adjust the chair seat to incline and lie on the chair seat and the chair back sideways, the inner bag opening of the pillow pad can be sleeved on the armrest, so that the hard feeling of the armrest is reduced, and the comfort level of the students in noon break is further improved.

Optionally, a cloth pad for wrapping the connecting rod is sewn at the bottom of the pillow pad, a primary component and a secondary component of the connecting piece are respectively arranged at two sides of the extending direction of the cloth pad, and the cloth pad is normally contained in the inner bag opening.

Through adopting foretell technical scheme, when the pillow passes through interior pocket mouth suit on the handrail, through taking out the cloth pad of interior pocket mouth inside and surround and be fixed in the periphery side of connecting rod, can reduce the hard sense of pressing against that the connecting rod caused when student's side was lain, further improve student's comfort level when noon break.

Optionally, a side face of the baffle is fixed with a bamboo fiber foot pad, and when the baffle rotates to lean against the limit post, the bamboo fiber foot pad is upwards arranged.

Through adopting foretell technical scheme, through being fixed with the bamboo fiber callus on sole at one side of baffle, can support when placing the foot on the baffle when the student noon break in the bamboo fiber callus on the sole to cold sense when having avoided the foot to contact the baffle, the comfort level when further improving the student noon break.

Optionally, a storage box is arranged between the base and the seat assembly, the top of the storage box is provided with an opening, a T-shaped sliding block is fixed at the bottom of the storage box, a sliding groove is arranged on the upper surface of the base, the T-shaped sliding block is slidably arranged in the sliding groove, and a pulley for pushing the storage box to move is also fixed at the bottom of the storage box.

By adopting the technical scheme, the storage box is arranged between the seat assembly and the base in a sliding manner and can be used for placing large articles such as schoolbags, when the storage box is required to be used, the pulley at the bottom of the storage box is pushed to roll, and the storage box can be driven to move in the sliding groove, so that the storage box is driven to leave the lower part of the seat assembly, and students can conveniently place the articles into the storage box.

In summary, the present application includes at least one of the following beneficial technical effects:

1. By arranging the angle adjusting structure to adjust the relative angle between the chair back and the chair frame, students can put the chair back flat, and the students can conveniently lie on the chair assembly for rest when in noon break;

2. Through the baffle, after the baffle rotates to the position of leaning against the limiting column, students can lie on the baffle when sitting on the seat assembly, so that the comfort level of the students in noon break is further improved, and the noon break quality and the afternoon listening efficiency of the students are further improved;

3. the length of the telescopic rod is adjusted by the length adjusting mechanism, the whole chair frame can rotate and incline towards one direction, so that students can lie on one side and roll up feet, and the occupied floor space of the students lying on the chair component for rest is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

fig. 2 is a schematic diagram of the structure of the storage box after being pushed out in the present embodiment;

FIG. 3 is an enlarged view at A in FIG. 1;

Fig. 4 is another view of the entire structure of the present embodiment;

fig. 5 is an enlarged view at B in fig. 4;

FIG. 6 is a partial cross-sectional view of the telescoping rod of FIG. 5, principally embodying a specific configuration of a length adjustment mechanism;

FIG. 7 is a schematic view of the seat assembly of the present embodiment rotated to recline;

FIG. 8 is a partial cross-sectional view of the armrest of the present embodiment, principally embodying a specific configuration of the angle adjustment structure;

Fig. 9 is a schematic view of the structure of the pillow in this embodiment after the pillow is detached.

The reference numerals are 1, a base, 11, a support rod, 12, a fixing frame, 13, a chute, 14, a support seat, 2, a desk assembly, 21, a desk frame, 211, a support column, 212, a mounting frame, 213, a limit column, 22, a desk table, 23, a baffle, 231 and a bamboo fiber foot pad;

3. The seat comprises a seat assembly, 31, a seat back, 32, an armrest, 33, a seat support, 34, a connecting rod, 35, a truss, 36, a telescopic rod, 361, a first post, 362, a second post, 4, a length adjusting mechanism, 41, a fixed sleeve, 42, a screw seat, 43, a screw rod, 44, a rotating handle, 45, a first bevel gear, 46, a second bevel gear, 5, an angle adjusting structure, 51, a clamping piece, 511, a connecting part, 512, a clamping part, 513, a plunger, 52, a movable groove, 53, a clamping plate, 531 and a clamping groove;

6. the seat cushion, 61, cloth cover, 62, pillow, 621, inner bag mouth, 622, cloth cushion, 623, connecting piece, 63, elastic belt, 7, storage box, 71, pulley.

Detailed Description

The application is described in further detail below with reference to fig. 1-9.

The embodiment of the application discloses a multifunctional student chair.

Referring to fig. 1, the multifunctional student chair comprises a base 1, a seat assembly 3, a desk assembly 2 and a storage box 7, wherein the seat assembly 3 and the desk assembly 2 are arranged at intervals and are respectively fixed on the upper surface of the base 1, the seat assembly 3 is used as a chair, the desk assembly 2 is used as a desk, and the storage box 7 is arranged between the seat assembly 3 and the base 1 and is used for placing large articles such as schoolbags and reducing desk space occupied by the schoolbags when students use students.

Referring to fig. 1 and 2, a base 1 comprises two parallel support rods 11 and a fixing frame 12 connected between the two support rods 11, wherein a sliding groove 13 is formed in the upper surface of the fixing frame 12, the extending direction of the sliding groove 13 is in the same direction as that of the support rods 11, a storage box 7 is a rectangular box body with an opening at the top, a T-shaped sliding block is fixed at the bottom of the storage box 7, and the T-shaped sliding block is slidably arranged in the sliding groove 13 and can slide along the extending direction of the sliding groove 13, so that the storage box 7 can move along the extending direction of the support rods 11. The bottom of the storage box 7 is also fixed with a plurality of pulleys 71, the pulleys 71 and the T-shaped sliding blocks are arranged at intervals, the pulleys 71 can normally lean against the ground under the action of gravity of the storage box 7 and can facilitate students to push the storage box 7 to move the storage box 7.

Referring to fig. 3 and 4, a supporting seat 14 is vertically fixed on the upper surface of each supporting rod 11, the upper surface of the supporting seat 14 is higher than the upper surface of the storage box 7, the seat assembly 3 comprises a seat back 31 and a seat frame, the seat frame comprises two connecting rods 34 and a seat 33 arranged between the two connecting rods 34, the number of the connecting rods 34 is two, each connecting rod 34 is hinged with one supporting seat 14 correspondingly, and the hinged position of the connecting rod 34 and the supporting seat 14 is located in the middle of the upper surface of the supporting seat 14.

Referring to fig. 4 and 5, a truss 35 is installed between the two connection bars 34, and the seat 33 is fixed to the upper surface of the truss 35.

Referring to fig. 4 and 5, one connecting rod 34 of the two connecting rods 34 is provided as a telescopic rod 36, so that the length of the telescopic rod 36 can be adjusted, one side of the truss 35 in the extending direction is hinged to the telescopic rod 36, and the other side of the truss 35 in the extending direction is fixedly connected to the connecting rod 34. By setting the length of the truss 35 equal to the distance between the two support rods 11, when the length of the telescopic rod 36 is adjusted to be equal to the length of the connecting rod 34, the two connecting rods 34 can be respectively rotated to the position perpendicular to the support rods 11, so that the chair seat 33 can be in a horizontal position, and students can conveniently sit on the chair seat 33 to learn.

Referring to fig. 5, the telescopic rod 36 includes a first pole 361 and a second pole 362, which are hollow in the interior, the first pole 361 is rotatably connected to the support base 14, the second pole 362 is disposed above the first pole 361, and the hinge between the truss 35 and the telescopic rod 36 is disposed on the second pole 362. Install length adjustment mechanism 4 between first pole 361 and the second pole 362, can be with first pole 361 and second pole 362 interconnect through length adjustment mechanism 4, can adjust the interval of first pole 361 and second pole 362 simultaneously, and then realize the length adjustment of telescopic link 36.

Referring to fig. 5 and 6, the length adjustment mechanism 4 includes a fixed sleeve 41, a pushing assembly and a driving assembly, wherein the fixed sleeve 41 is embedded inside a first pole 361 and a second pole 362, and the fixed sleeve 41 spans between the first pole 361 and the second pole 362. The number of pushing components is two, and the two pushing components are respectively disposed at two ends of the extension direction of the fixed sleeve 41, for pushing the first pole 361 and the second pole 362 to approach to/separate from each other.

Referring to fig. 6, each pushing assembly includes a screw seat 42 and a screw 43, wherein the screw seat 42 is fixedly installed inside an adjacent first pole 361 or second pole 362, a screw groove is formed on a side of the screw seat 42 facing the fixed sleeve 41, the screw 43 is screwed to the screw groove, and the two screws 43 are respectively connected with the first pole 361 and the second pole 362 in a rotating manner. The driving assembly is connected to the two screws 43 for driving the two screws 43 to rotate in opposite directions, thereby driving the first pole 361 and the second pole 362 toward/away from each other.

Referring to fig. 6, the driving assembly includes a rotating handle 44, a second bevel gear 46, and two first bevel gears 45, the rotating handle 44 is penetrated through the fixed sleeve 41 and rotatably coupled to the fixed sleeve 41, and the second bevel gear 46 is disposed inside the fixed sleeve 41 and coaxially fixed with the rotating handle 44. Each first bevel gear 45 is coaxially fixed to a side of the screw 43 away from the screw seat 42, and the two first bevel gears 45 are meshed with the second bevel gear 46 for transmission.

Referring to fig. 6 and 7, when students need noon break, the first bevel gear 45 is driven to rotate by rotating the rotating handle 44, so that the two second bevel gears 46 meshed with the first bevel gear 45 can be driven to reversely rotate, the screw rods 43 further push the correspondingly connected threaded seats 42 to oppositely move or reversely move, the length of the telescopic rods 36 is adjusted, after the length of the telescopic rods 36 is prolonged, the two connecting rods 34 can rotate in the same direction, and accordingly the seat 33 is driven to incline in the same direction, so that the students can lie on the seat frame sideways, and noon break quality and comfort of the students are improved.

Referring to fig. 5, the backrest 31 is rotatably connected to a side edge of the seat 33, the side surface of the backrest 31, which is close to each connecting rod 34, is rotatably provided with an armrest 32, and an angle adjusting structure 5 is disposed between each armrest 32 and the adjacent connecting rod 34, for adjusting the relative positions of the armrests 32 and the connecting rods 34, so as to change the relative angle between the backrest 31 and the seat 33.

Referring to fig. 5, the angle adjusting structure 5 includes a clamping member 51 disposed at the top end of the connecting rod 34 and a movable slot 52 disposed at the bottom of the armrest 32, where the extending direction of the movable slot 52 is in the same direction as the extending direction of the armrest 32.

Referring to fig. 5 and 8, the clamping member 51 includes an integrally formed connecting portion 511 and a clamping portion 512, wherein the clamping member 51 is fixedly connected to the connecting rod 34 through the connecting portion 511, the clamping portion 512 is located at a side of the connecting portion 511 away from the chair back 31, and the clamping portion 512 is partially exposed at a side of the connecting rod 34 away from the chair back 31. In this embodiment, the widths of the connecting portion 511 and the clamping portion 512 are smaller than the width of the movable slot 52, so that the clamping member 51 can be directly clamped into the movable slot 52, the connecting portion 511 is further fixedly inserted with inserting columns 513, the inserting columns 513 penetrate through two sides of the connecting portion 511, and the axial length of the inserting columns 513 is greater than the width of the notch of the movable slot 52, so as to prevent the clamping member 51 from being separated from the movable slot 52.

Referring to fig. 8, a plurality of clamping plates 53 are fixed on the inner top wall of the movable slot 52, all the clamping plates 53 are arranged at intervals along the extending direction of the movable slot 52, the interval between adjacent clamping plates 53 is set to be larger than the maximum interval between the connecting part 511 and the clamping part 512, a clamping groove 531 is formed on one side, close to the inner top wall of the movable slot 52, of each clamping plate 53, and the clamping part 512 can be matched and clamped in the clamping groove 531.

The clamping portion 512 in this embodiment is normally clamped in the clamping groove 531, when the angle of the chair back 31 needs to be adjusted, the clamping portion 512 can be initially separated from the clamping groove 531 by sliding the armrest 32 along the direction close to the chair back 31, then the armrest 32 is lifted upwards to enable the clamping portion 512 and the clamping plate 53 to be arranged in a staggered manner, and at the moment, the relative position of the connecting rod 34 and the armrest 32 can be changed by moving the armrest 32, so that the angle of the chair back 31 relative to the chair seat 33 is changed, students can lie backwards and lie in a flat state during noon break, and noon break quality and comfort of the students are further improved.

Referring to fig. 1 and 4, a seat cushion 6 is commonly mounted between a seat back 31 and a seat base 33, and cloth covers 61 are provided on both sides of the seat cushion 6 in the extending direction, respectively, so that the seat cushion 6 can be fitted over the seat back 31 and the seat base 33 through the cloth covers 61. The cushion 6 is also provided with a pillow 62, and the pillow 62 is sleeved on the cushion 6 and the chair back 31 through an elastic belt 63, so that the pillow 62 can be padded on the waist or the neck of students, and the comfort level of the students is further improved.

Referring to fig. 9, an inner pocket 621 is formed in one side surface of the pillow 62, and the length of the inner pocket 621 in the extending direction is longer than that of the armrest 32, so that the pillow 62 can be fitted over the armrest 32 through the inner pocket 621, and thus, students can lean against the pillow 62 when lying on their sides, and the feeling of hardness is reduced. The bottom of the pillow 62 is also sewed with a cloth pad 622, the cloth pad 622 is normally contained in the inner bag hole 621, and the two sides of the cloth pad 622 adjacent to the pillow 62 are respectively fixed with a primary and secondary component of the connecting piece 623, in this embodiment, the primary and secondary component of the connecting piece 623 is set as a primary and secondary patch of the magic tape. After the pillow 62 is sleeved on the armrest 32, the cloth pad 622 is taken out from the inner bag 621 and wrapped on the outer periphery of the connecting rod 34, and then the hook and loop fastener is used for fixing the cloth pad 622 around the complete set, so that the hard feeling of the student caused by the connecting rod 34 when the student lies on the side can be reduced, and the comfort level of the student in noon break can be further improved.

Referring to fig. 1 and 2, the desk assembly 2 comprises a desk frame 21 fixed on the upper surface of the base 1 and a desk 22 mounted on the upper surface of the desk frame 21, the desk frame 21 comprises two vertically arranged support columns 211, a mounting frame 212 is fixed on one side of each support column 211 far away from the seat assembly 3, a baffle plate 23 is mounted on the two mounting frames 212 in a co-rotation mode, and the baffle plate 23 stays in a vertical position normally and is used for protecting legs.

Referring to fig. 2, a bamboo fiber foot pad 231 is fixed on one side of the baffle 23 far away from the table and chair assembly, and limit posts 213 are fixed on opposite sides of the two support posts 211 respectively, when the baffle 23 rotates downward to abut against the limit posts 213, the orientation of the bamboo fiber foot pad 231 is set upward, so that the student can place the foot on the bamboo fiber foot pad 231 during noon break, and the comfort level of the student during noon break is further improved.

The embodiment of the application provides a multifunctional student chair, which is implemented by the following principle:

When students are in noon break in school, the clamping part 512 of the clamping piece 51 is matched and clamped with the clamping grooves 531 of the different clamping plates 53 by moving the armrests 32, so that the chair back 31 can rotate around the hinge position of the student and the chair seat 33, and the chair back 31 can be placed flat, so that the students can lie down conveniently. In addition, the rotating handle 44 is rotated to drive the first pole 361 and the second pole 362 to move in the directions away from each other, so that the two connecting rods 34 can rotate in the same direction, and the seat 33 is driven to incline in the same direction, at the moment, students can lie on the seat frame sideways and roll up feet, which is beneficial to the occupied space of the students lying on the seat assembly 3, and the condition that part of the students snore to influence the leisure of other students can be reduced, so that the noon break quality of the students is further improved.

The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.

Claims

1. A multifunctional student chair, characterized in that it comprises a base (1) and a seat assembly (3) and a desk assembly (2) respectively fixed on the base (1), wherein the seat assembly (3) and the desk assembly (2) are arranged at a distance from each other; the seat assembly (3) comprises a chair frame fixed to the base (1) and a chair back (31) rotatably mounted on the chair frame, and an angle adjustment structure (5) is provided between the chair back (31) and the chair frame for adjusting the relative angle between the chair back (31) and the chair frame;

The desk assembly (2) comprises a table frame (21) for fixing to the base (1) and a table top (22) fixed on the table frame (21); a baffle (23) is provided on a rotating frame on a side of the table frame (21) away from the seat assembly (3); a limiting column (213) for positioning the baffle (23) is provided on the inner side of the table frame (21); when the baffle (23) is rotated to abut against the limiting column (213), the baffle (23) is arranged to face upward;

The chair frame comprises two vertically arranged connecting rods (34) and a seat (33) installed between the two connecting rods (34); the chair back (31) is rotatably connected to the seat (33), and armrests (32) are rotatably installed on both sides of the chair back (31);

The angle adjustment structure (5) comprises a clamping piece (51) arranged at the top end of the connecting rod (34) and a movable groove (52) arranged at the bottom end of the armrest (32), wherein the extension direction of the movable groove (52) is arranged in the same direction as the extension direction of the armrest (32); a plurality of clamping plates (53) arranged at intervals are fixed to the inner top wall of the movable groove (52), and the clamping piece (51) is matched and clamped with the clamping plates (53);

The two connecting rods (34) are rotatably connected to the base (1) respectively; one of the two connecting rods (34) is configured as a telescopic rod (36), the telescopic rod (36) comprising a first column rod (361) and a second column rod (362) which are arranged hollow inside, the first column rod (361) being rotatably connected to the base (1); the second column rod (362) being arranged above the first column rod (361), and the seat (33) being hinged to the second column rod (362); a length adjustment mechanism (4) is provided between the first column rod (361) and the second column rod (362), for adjusting the distance between the first column rod (361) and the second column rod (362);

The length adjustment mechanism (4) comprises a fixed sleeve (41) straddling the inside of the first column (361) and the second column (362), two sets of push assemblies respectively arranged at two ends of the extension direction of the fixed sleeve (41), and a driving assembly for driving the push assemblies to operate;

The push assembly comprises a threaded seat (42) fixed inside the first column (361)/the second column (362) and a screw rod (43) threadedly connected to the threaded seat (42), and the screw rod (43) is rotatably connected to the inside of the fixed sleeve (41) through the rotating seat; a first bevel gear (45) is coaxially fixed to one end of each screw rod (43) away from the threaded seat (42);

The driving assembly comprises a rotating handle (44) rotatably inserted into a fixed sleeve (41) and a second bevel gear (46) coaxially fixed to the rotating handle (44); the second bevel gear (46) is simultaneously meshed with two first bevel gears (45) for transmission; when the second bevel gear (46) rotates, the two threaded seats (42) move in a direction away from each other/approaching each other.

2. The multifunctional student chair according to claim 1 is characterized in that: the clamping part (51) includes an integrally formed connecting portion (511) and a clamping portion (512), the connecting portion (511) is fixedly connected to the connecting rod (34), and the clamping portion (512) is partially exposed on the side of the connecting rod (34) close to the desk assembly (2); the clamping plate (53) is provided with a clamping groove (531) on the side close to the inner top wall of the movable groove (52), and the side of the clamping portion (512) exposed on the connecting rod (34) is matched and clamped in the clamping groove (531).

3. The multifunctional student chair according to claim 2 is characterized in that: the connecting portion (511) is connected to a plug column (513) that passes through both sides of the clamping plate (53), and the axial length of the plug column (513) is greater than the slot width of the movable slot (52).

4. The multifunctional student chair according to claim 1 is characterized in that: a seat cushion (6) is installed between the chair back (31) and the seat (33), and the seat cushion (6) is also provided with a pillow pad (62), and the pillow pad (62) is movably connected to the seat cushion (6); an inner pocket opening (621) is provided on one side surface of the pillow pad (62), and the pillow pad (62) is mounted on the armrest (32) through the inner pocket opening (621).

5. The multifunctional student chair according to claim 4 is characterized in that: a cloth pad (622) for wrapping the connecting rod (34) is sewn at the bottom of the pillow (62), and mother-and-child parts of a connecting piece (623) are respectively provided on both sides of the extension direction of the cloth pad (622); the cloth pad (622) is normally stored inside the inner bag opening (621).

6. The multifunctional student chair according to claim 1 is characterized in that a bamboo fiber foot pad (231) is fixed to one side of the baffle (23), and when the baffle (23) rotates to abut against the limiting column (213), the bamboo fiber foot pad (231) is arranged to face upward.

7. The multifunctional student chair according to claim 1 is characterized in that: a storage box (7) is provided between the base (1) and the seat assembly (3), the top of the storage box (7) is open, and a T-shaped slider is fixed to the bottom of the storage box (7); a slide groove (13) is provided on the upper surface of the base (1), and the T-shaped slider is slidably installed in the slide groove (13); a pulley (71) for pushing the storage box (7) to move is also fixed to the bottom of the storage box (7).