CN209058327U - A multifunctional integrated desk and chair - Google Patents

Abstract

The utility model relates to a multifunctional integrated desk and chair, comprising a base, a desk body and a chair body. The desk body includes a desk board, a connecting piece and a first supporting leg, and the connecting piece includes a moving plate, a rotating plate and a screw rod. The upper end of the base is provided with a guide groove, the cross section of the guide groove is an inverted T shape, and the moving plate is located at the bottom of the guide groove; The lower end of the first support leg is provided with a second groove; the top of the first support leg is rotatably connected to the table board; the chair body includes a seat plate, a backboard and a second support leg, and the bottom of the second support leg is fixed on the base , the top of the second support leg is fixed with a seat plate; one end of the backing plate is rotatably connected with the end of the seat plate away from the table plate. The utility model can be used separately from the desk body and the chair body, or can be combined with each other to be used as a reclining chair, so as to improve the comfort of students when they take a nap.

Description

A multifunctional integrated desk and chair

technical field

The utility model relates to the technical field of teaching equipment, in particular to a multifunctional integrated desk and chair.

Background technique

At present, most of the desks and chairs used in schools are fixed, the desk is a desk, and the seat is a seat, which has a single function and cannot have other functions after a simple change. In addition to intense and busy study, especially the long noon break, students often hope to get adequate after-school rest. Due to the limitation of classroom conditions and the lack of dormitories, most students can only choose to take a nap on the desk, which is not very comfortable during rest.

Utility model content

The technical problem to be solved by the utility model is to provide a multifunctional integrated desk and chair to overcome the above-mentioned deficiencies in the prior art.

The technical solution of the utility model to solve the above technical problems is as follows: a multifunctional integrated desk and chair, comprising a base, a desk body and a chair body, the desk body includes a table board, a connecting piece and a first supporting leg, and the connecting piece includes A moving plate, a rotating plate and a screw rod. The upper end of the rotating plate is provided with a first groove matching the first supporting leg, and the bottom of the first supporting leg is embedded in the first groove; the upper end of the base is provided with a guide groove, The cross section of the guide groove is an inverted T shape, and the moving plate is located at the bottom of the guide groove; one end of the screw rod is located in the guide groove and fixed on the moving plate, and the other end of the screw rod passes through the guide groove and is connected with the rotating plate outside the base. screw connection; the lower end of the first support leg is provided with a second groove matching the screw rod; the top of the first support leg is rotatably connected with the table board; the chair body includes a seat plate, a backboard and a second support leg, the second support The bottom of the leg is fixed on the base, and the top of the second support leg is fixed with a seat plate; one end of the backing plate is rotatably connected with the end of the seat plate away from the table plate.

The beneficial effects of the utility model are: the desk body and the chair body can be used separately, or the two can be combined with each other to be used as a reclining chair, so as to improve the comfort of students when they take a nap; When it is combined with the chair body, the table board can be rotated first to make the table board tilt to serve as the backrest of the reclining chair, or as the easel for artists; then rotate the rotary board to make the screw connected to the rotary board move down and drive the movement. The board moves down to release the clamping of the moving board and the rotating board on the base; then push the second support leg to make the table board abut the seat board, and then rotate the rotating board in the opposite direction to move the screw rod and the moving board, so that the moving board Interacting with the rotating plate, it is clamped on the base again to prevent the desk body from moving during use; and then the backing plate is rotated to make the backing plate inclined to facilitate students to put their legs when it is used as a reclining chair.

Further: the desk body also includes a first rotation adjustment device, the first rotation adjustment device includes a motor, a first gear, a second gear and two first rotating pieces, and the first support leg includes a horizontal rod and two vertical rods, The tops of the two vertical rods are respectively fixed on the two ends of the horizontal rods, and the lower ends of the two vertical rods are provided with second grooves; Set in the first groove of a rotating plate; the two first rotating pieces are respectively located at both ends of the horizontal rod, and one end of the two first rotating pieces is fixed on the table top, and the other ends of the two rotating pieces are The first gear is fixedly sleeved on the middle of the horizontal rod; the motor is fixed on the table, the output shaft of the motor is fixedly sleeved with a second gear, and the second gear is meshed with the first gear.

The beneficial effect of the above-mentioned further scheme is: students can realize the rotation adjustment of the table board through the first rotation adjustment device; A gear is engaged, and the first gear is fixed on the horizontal rod, the second gear will make a circular motion around the central axis of the first gear, so as to rotate between the table board and the first support leg.

Further: Both vertical poles are liftable poles.

The beneficial effect of the above-mentioned further scheme is that students can adjust the height of the vertical rod according to their own height and habits, so as to improve the comfort of use.

Further: the chair body also includes a second rotation adjustment device, the second rotation adjustment device includes an electric push rod, a push rod, two connecting rods and two second rotating pieces, and both sides of the end of the seat plate away from the table plate are provided with The first rotating shaft, one end of the two second rotating pieces is respectively fixed on both sides of the backing plate, and the other ends of the two second rotating pieces are correspondingly sleeved on a first rotating shaft; one end of the seat plate away from the table plate is provided with There is a third groove, the electric push rod is fixed at the bottom of the third groove; the push rod is located in the third groove, the push rod and the output shaft of the electric push rod are perpendicular to each other, and the push rod is fixed to the output shaft of the electric push rod The end of the seat plate away from the table plate is also provided with two first notches, both of which are communicated with the third groove, and one end of each connecting rod is correspondingly located in one of the first notches, and the sleeve It is arranged on the push rod; the backing plate is provided with two second gaps corresponding to the first gap, and each second gap is fixed with a second rotating shaft; the other end of each connecting rod is located in a corresponding The second notch is sleeved on the second rotating shaft.

The beneficial effects of the above-mentioned further scheme are: students can realize the rotation adjustment of the backing plate through the second rotation adjusting device; two connecting rods are arranged at the same time, so that the rotation between the backing plate and the seat plate can be made more stable; Push rod, the push rod will move under the drive of the output shaft of the electric push rod, one end of the connecting rod sleeved on the push rod will move with the push rod, and the other end of the connecting rod will be driven by the restriction of the second rotating piece The backing plate makes a circular motion around the first rotating shaft to make the backing plate and the seat plate rotate.

Further: the two first notches are respectively close to the two sides of the end of the seat plate away from the table plate.

The beneficial effect of the above-mentioned further solution is that the interference of the connecting rod in the second rotation adjusting device to the user is reduced as much as possible.

Further: There are rollers all around the bottom of the base.

The beneficial effects of the above-mentioned further scheme are: facilitating the movement and transfer of desks and chairs.

Further: the desk and chair also includes a first drawer, a first drawer box corresponding to the first drawer is arranged at the bottom of the table board, and the first drawer is located in the first drawer box.

The beneficial effect of the above-mentioned further scheme is that it is convenient for students to place textbooks and other items.

Further: the first drawer is provided with a first slider.

The beneficial effect of the above-mentioned further solution is that it is convenient for students to pull out the first drawer from the first drawer box.

Further: the desk and chair also includes a second drawer, the bottom of the seat plate is provided with a second drawer box corresponding to the second drawer, and the second drawer is located in the second drawer box.

The beneficial effect of the above-mentioned further scheme is that it is convenient for students to place textbooks and other items.

Further: the second drawer is provided with a second slider.

The beneficial effect of the above-mentioned further solution is that it is convenient for students to pull out the second drawer from the second drawer box.

Description of drawings

Fig. 1 is the structural representation when a kind of multifunctional integrated desk and chair of the present utility model is used separately;

2 is a schematic structural diagram of a multifunctional integrated desk and chair of the present utility model when used in combination with each other;

3 is a partial cross-sectional view of the first support leg and the connecting piece in a multifunctional integrated desk and chair of the present invention;

Fig. 4 is a partial cross-sectional view in the direction of A-A' in Fig. 3;

5 is a cross-sectional view of a middle seat plate of a multifunctional integrated desk and chair of the present invention.

In the figure: 1 is the base, 11 is the guide groove, 12 is the roller, 13 is the plate body, 14 is the foot cup, 2 is the desk body, 21 is the desk board, 211 is the first drawer box, 22 is the connector, 221 222 is a moving plate, 222 is a rotating plate, 2221 is a first groove, 2222 is a hand lever, 223 is a screw rod, 23 is a first support leg, 231 is a second groove, 232 is a horizontal rod, 233 is a vertical rod , 2331 is the first rod body, 23311 is the through hole, 2332 is the second rod body, 23321 is the threaded hole, 2333 is the bolt, 234 is the rib, 24 is the first rotation adjusting device, 241 is the motor, 242 is the first gear, 243 is the second gear, 244 is the first rotating piece, 3 is the chair body, 31 is the seat plate, 311 is the first shaft, 312 is the third groove, 313 is the first notch, 314 is the second drawer box, 315 32 is the armrest, 32 is the back plate, 321 is the second notch, 33 is the second support leg, 34 is the second rotation adjusting device, 341 is the electric push rod, 342 is the push rod, 343 is the connecting rod, 344 is the second rotation Sheet, 4 is the first drawer, 41 is the first slider, 5 is the second drawer, 51 is the second slider, 6 is the sitting posture correction device, 61 is the clip, 62 is the arc clip, and 7 is the pedal.

Detailed ways

The principles and features of the present invention will be described below with reference to the accompanying drawings, and the examples are only used to explain the present invention, and are not intended to limit the scope of the present invention.

As shown in FIGS. 1 to 4 , a multifunctional integrated desk and chair according to Embodiment 1 of the present utility model includes a base 1 , a desk body 2 and a chair body 3 , and the desk body 2 includes a table board 21 and a connecting piece 22 and the first supporting leg 23, the connecting piece 22 includes a moving plate 221, a rotating plate 222 and a screw 223, the upper end of the rotating plate 222 is provided with a first groove 2221 matching the first supporting leg 23, The bottom is embedded in the first groove 2221; the upper end of the base 1 is provided with a guide groove 11, the cross section of the guide groove 11 is an inverted T shape, the moving plate 221 is located at the bottom of the guide groove 11; one end of the screw 223 is located in the guide groove 11 and fixed on the moving plate 221, the other end of the screw rod 223 goes out of the guide groove 11 and is threadedly connected with the rotating plate 222 located outside the base 1; Two grooves 231; the top of the first support leg 23 is rotatably connected with the table board 21; the chair body 3 includes a seat board 31, a backboard 32 and a second support leg 33, and the bottom of the second support leg 33 is fixed on the base 1, A seat plate 31 is fixed on the top of the second support leg 33 ;

The utility model can not only use the desk body 2 and the chair body 3 separately, but also can combine the two to use as a reclining chair, so as to improve the comfort of students when they take a nap; When the main bodies 3 are combined with each other, the table board 21 can be rotated first, so that the table board 21 can be tilted to be used as the back of a reclining chair, or used as an easel for artists; then the rotary plate 222 can be rotated to move the screw 223 threadedly connected with the rotary plate 222 down. , and drive the moving plate 221 down to release the clamping of the base 1 by the moving plate 221 and the rotating plate 222; then push the second supporting leg 33 to make the table plate 21 abut on the seat plate 31, and then rotate the rotating plate in the opposite direction 222 makes the screw 223 and the moving plate 221 move up, so that the moving plate 221 and the rotating plate 222 interact and clamp on the base 1 again, so as to prevent the desk body 2 from moving during use; then turn the backing plate 32 to make the The backboard 32 is inclined to facilitate the students to rest their legs when used as a reclining chair.

As shown in FIG. 1 to FIG. 4 , the second embodiment of the present invention is a multifunctional integrated desk and chair. On the basis of the first embodiment, the desk body 2 further includes a first rotation adjusting device 24 . The device 24 includes a motor 241, a first gear 242, a second gear 243 and two first rotating pieces 244. The first support leg 23 includes a horizontal rod 232 and two vertical rods 233. The tops of the two vertical rods 233 are respectively Fixed on both ends of the horizontal rod 232, the lower ends of the two vertical rods 233 are both provided with second grooves 231; the number of the connecting pieces 22 is two, and the bottoms of the two vertical rods 233 are embedded in one In the first groove 2221 of the rotating plate 222; the two first rotating pieces 244 are respectively located at both ends of the horizontal rod 232, and one end of the two first rotating pieces 244 is fixed on the table board 21, and the two rotating pieces 244 The other end is sleeved on the horizontal rod 232; the first gear 242 is fixedly sleeved in the middle of the horizontal rod 232; the motor 241 is fixed on the table board 21, and the output shaft of the motor 241 is fixedly sleeved with a second gear 243, And the second gear 243 meshes with the first gear 242 .

Students can adjust the rotation of the table board 21 through the first rotation adjustment device 24; specifically, start the motor 241, and the second gear 243 will rotate under the drive of the output shaft of the motor 241, because the second gear 243 and the first gear 242 are meshed, and the first gear 242 is fixed on the horizontal rod 232, the second gear 243 will make a circular motion around the central axis of the first gear 242, so that the table 21 and the first support leg 23 turn.

As shown in FIGS. 1 to 4 , Embodiment 3 of the present invention is a multifunctional integrated desk and chair. On the basis of Embodiment 1 or Embodiment 2, the two vertical rods 233 are liftable rods. Students can adjust the height of the vertical rod 233 according to their own height and habits to improve the comfort of use.

As shown in FIG. 3 , the fourth embodiment of the present invention is a multifunctional integrated desk and chair. On the basis of any of the first to third embodiments, the vertical rod 233 includes a first rod body 2331 and a second rod body. 2332 and bolts 2333, the inside of the first rod body 2331 is connected, the top of the second rod body 2332 is fixed on the horizontal rod 232, the lower end of the second rod body 2332 is embedded in the first rod body 2331, and the bottom of the first rod body 2331 is embedded in the first groove 2221; the first rod body 2331 is provided with a plurality of through holes 23311 that match the bolts 2333, and the lower end of the second rod body 2332 is provided with threaded holes 23321 that match the bolts 2333; the bolts 2333 pass through a The through hole 23311 is then screwed into the threaded hole 23321. Students can move the second rod body 2332 up and down, and after the height of the vertical rod 233 is adjusted in place, pass the bolt 2333 through a corresponding through hole 23311 and then screw it into the threaded hole 23321 to fix the vertical rod 233 .

As shown in Figures 1, 2 and 5, the fifth embodiment of the present invention is a multifunctional integrated desk and chair. On the basis of any one of the first to fourth embodiments, the chair body 3 further includes a second The rotation adjustment device 34, the second rotation adjustment device 34 includes an electric push rod 341, a push rod 342, two connecting rods 343 and two second rotating pieces 344, and both sides of the end of the seat plate 31 away from the table plate 21 are provided with For the first rotating shaft 311, one end of the two second rotating pieces 344 is respectively fixed on both sides of the backing plate 32, and the other ends of the two second rotating pieces 344 are correspondingly sleeved on a first rotating shaft 311; the seat plate 31 A third groove 312 is provided at one end away from the table top 21, and the electric push rod 341 is fixed at the bottom of the third groove 312; the push rod 342 is located in the third groove 312, and the push rod 342 and the output shaft of the electric push rod 341 They are perpendicular to each other, and the push rod 342 is fixed on the output shaft of the electric push rod 341; the end of the seat plate 31 away from the table top 21 is further provided with two first notches 313, and the two first notches 313 are connected with the third groove 312. One end of each connecting rod 343 is correspondingly located in a first gap 313, and is sleeved on the push rod 342; the backing plate 32 is provided with two second gaps 321 corresponding to the first gap 313 , and each second notch 321 is fixed with a second rotating shaft; the other end of each connecting rod 343 is located in a corresponding second notch 321 and sleeved on the second rotating shaft.

Students can adjust the rotation of the backing plate 32 through the second rotation adjusting device 34; at the same time, two connecting rods 343 are provided to make the rotation between the backing plate 32 and the seat plate 31 more stable; specifically, start the electric push rod 341 , the push rod 342 will move under the drive of the output shaft of the electric push rod 341, one end of the connecting rod 343 sleeved on the push rod 342 will move with the push rod 342, and the other end of the connecting rod 343 will be driven by the second rotating piece The restriction of 344 will drive the backing plate 32 to make a circular motion around the first rotating shaft 311 so as to rotate between the backing plate 32 and the seat plate 31 .

As shown in FIG. 1 , the sixth embodiment of the present invention is a multifunctional integrated desk and chair. On the basis of any one of the first to fifth embodiments, the two first notches 313 are respectively close to the seat plate 31 and away from On both sides of one end of the table board 21 . The interference to the user by the connecting rod 343 in the second rotation adjusting device 34 is reduced as much as possible.

As shown in FIG. 1 and FIG. 2 , the seventh embodiment of the present invention is a multifunctional integrated desk and chair. On the basis of any one of the embodiments 1 to 6, the bottom of the base 1 is provided with rollers 12 all around. . It is convenient to move the desks and chairs.

As shown in FIGS. 1 and 2 , Embodiment 8 of the present invention is a multifunctional integrated desk and chair. On the basis of Embodiment 7, foot cups 14 are provided around the bottom of the base 1 . The foot cup 14 includes a screw rod and a base plate, the base 1 is provided with a threaded hole matching the screw rod, the upper end of the screw rod is arranged in the screw hole, and the lower end of the screw rod is fixedly connected with the base plate. Through the above arrangement, after the desk and chair are moved in place by the roller 12, the screw can be moved down in the threaded hole by screwing the screw to free the roller 12 to avoid the roller 12 from rolling randomly during use.

As shown in Figures 1 and 2, Embodiment 9 of the present utility model is a multifunctional integrated desk and chair. On the basis of any one of Embodiments 1 to 8, the desk and chair further includes a first drawer 4, The bottom of the table board 21 is provided with a first drawer box 211 corresponding to the first drawer 4 , and the first drawer 4 is located in the first drawer box 211 . It is convenient for students to place textbooks and other items.

As shown in FIGS. 1 and 2 , the tenth embodiment of the present invention is a multifunctional integrated desk and chair. On the basis of the ninth embodiment, the first drawer 4 is provided with a first slider 41 . It is convenient for students to pull out the first drawer 4 from the first drawer box 211 .

As shown in FIG. 1 and FIG. 2 , Embodiment 11 of the present invention is a multifunctional integrated desk and chair. On the basis of any one of Embodiments 1 to 10, the desk and chair further includes a second drawer 5 , The bottom of the table top 21 is provided with a second drawer box 314 corresponding to the second drawer 5 , and the second drawer 5 is located in the second drawer box 314 . It is convenient for students to place textbooks and other items.

As shown in FIG. 1 and FIG. 2 , the twelfth embodiment of the present invention is a multifunctional integrated desk and chair. On the basis of the eleventh embodiment, the second drawer 5 is provided with a second slider 51 . It is convenient for students to pull out the second drawer 5 from the second drawer box 212 .

As shown in FIG. 4 , the thirteenth embodiment of the present invention is a multifunctional integrated desk and chair. On the basis of any one of the first to twelfth embodiments, the first support legs 23 located in the first grooves 2221 The bottom is provided with a rib 234, the first groove 2221 is provided with an annular groove matching the rib 234, and the rib 234 is clamped in the annular groove. The connection between the first support leg 23 and the rotating plate 222 is made firm.

As shown in FIGS. 1 to 3 , the fourteenth embodiment of the present invention is a multifunctional integrated desk and chair. On the basis of any one of the first to thirteenth embodiments, the rotating plate 222 is provided with a handle bar 2222 . It is convenient for students to rotate the rotating plate 222 .

As shown in FIG. 1 , Embodiment 15 of the present utility model is a multifunctional integrated desk and chair. On the basis of any one of Embodiments 1 to 14, the desk and chair further includes a sitting posture correcting device 6 . The sitting posture correcting device 6 is an L-shaped structure, the lower end of the sitting posture correcting device 6 is provided with a clamp head 61 , the clamping head 61 is clamped on the table board 21 , and the upper end of the sitting posture correcting device 6 is provided with an arc-shaped clamp 62 . Students can adjust their sitting posture during study through the sitting posture correcting device 6 to reduce the probability of hunchback or myopia; the sitting posture correcting device 6 and the table 21 are detachable, and the sitting posture correcting device 6 needs to be removed when used as a reclining chair.

As shown in FIG. 1 and FIG. 2 , the sixteenth embodiment of the present invention is a multifunctional integrated desk and chair. On the basis of any one of the embodiments 2 to 15, the base 1 includes four boards that are connected end to end. The body 13, the two connecting pieces 22 are arranged on the two plate bodies 13 which are arranged opposite to each other.

As shown in Figures 1 and 2, the 17th embodiment of the present utility model is a multifunctional integrated desk and chair. On the basis of the 16th embodiment, the desk and chair further comprises a pedal 7, and the two ends of the pedal 7 are respectively fixed to the The connecting piece 22 is connected to the two plate bodies 13 . It is convenient for students to place their feet on the pedal 7 when using.

As shown in FIG. 1 and FIG. 2 , the eighteenth embodiment of the present invention is a multifunctional integrated desk and chair. On the basis of any one of the embodiments 1 to 17, the two sides of the seat plate 31 are provided with armrests 315 .

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (10)

1. a kind of multifunctional all desk and chair, it is characterised in that: including pedestal (1), desk body (2) and chair body (3), The desk body (2) includes desktop (21), connector (22) and the first supporting leg (23), and the connector (22) includes movement The upper end of plate (221), rotor plate (222) and screw rod (223), the rotor plate (222) is equipped with and first supporting leg (23) The first groove (2221) to match, the bottom of first supporting leg (23) are embedded in first groove (2221)；Institute The upper end for stating pedestal (1) is equipped with guide groove (11), and the section of the guide groove (11) is in inverted T font, and the movable plate (221) is located at institute State the bottom of guide groove (11)；One end of the screw rod (223) is located in the guide groove (11), and is fixed on the movable plate (221) on, the other end of the screw rod (223) is pierced by the guide groove (11), and be located at the described rotation of the pedestal (1) outside Plate (222) is threadedly coupled；The lower end of first supporting leg (23) is equipped with the second groove to match with the screw rod (223) (231)；The top and the desktop (21) of first supporting leg (23) are rotatablely connected；The chair body (3) includes seat board (31), the bottom of backup plate (32) and the second supporting leg (33), second supporting leg (33) is fixed on the pedestal (1), institute It states and is fixed with the seat board (31) at the top of the second supporting leg (33)；One end of the backup plate (32) and the seat board (31) are separate One end of the desktop (21) is rotatablely connected.

2. a kind of multifunctional all desk and chair according to claim 1, it is characterised in that: the desk body (2) is also wrapped It includes the first device for regulating rotary (24), first device for regulating rotary (24) includes motor (241), first gear (242), Two gears (243) and two the first rotatable lamellas (244), first supporting leg (23) include that horizon bar (232) and two are vertical Bar (233) is individually fixed in the both ends of the horizon bar (232) at the top of two vertical bars (233), and two described vertical The lower end of bar (233) is equipped with second groove (231)；The quantity of the connector (22) is two, and two described vertical In corresponding first groove (2221) for being embedded at the rotor plate (222) in the bottom of bar (233)；Described in two First rotatable lamella (244) is located at the both ends of the horizon bar (232), and one end of two first rotatable lamellas (244) It is both secured on the desktop (21), the other end of two first rotatable lamellas (244) is sheathed on the horizon bar (232) On；First gear (242) fixing sleeve is set to the middle part of the horizon bar (232)；The motor (241) is fixed on the table On plate (21), fixing sleeve is equipped with the second gear (243) on the output shaft of the motor (241), and the second gear (243) it is meshed with the first gear (242).

3. a kind of multifunctional all desk and chair according to claim 2, it is characterised in that: two vertical bars (233) It is liftable bar.

4. a kind of multifunctional all desk and chair according to claim 1, it is characterised in that: the chair body (3) is also wrapped Include the second device for regulating rotary (34), second device for regulating rotary (34) include electric pushrod (341), catch bar (342), The two sides of two connecting rods (343) and two the second rotatable lamellas (344), the one end of the seat board (31) far from the desktop (21) are equal Equipped with first rotating shaft (311), one end of two second rotatable lamellas (344) is individually fixed in the two sides of the backup plate (32), The other end of two second rotatable lamellas (344) is corresponding to be sheathed on the first rotating shaft (311)；The seat board (31) one end far from the desktop (21) is equipped with third groove (312), and it is recessed that the electric pushrod (341) is fixed on the third The bottom of slot (312)；The catch bar (342) is located in the third groove (312), the catch bar (342) and the electricity The output shaft of dynamic push rod (341) is mutually perpendicular to, and the catch bar (342) is fixed on the output shaft of the electric pushrod (341) On；The seat board (31) is additionally provided with two the first notches (313), two first notches far from the one end of the desktop (21) (313) it is connected with the third groove (312), one end of each connecting rod (343) is corresponding to be located at described in one In first notch (313), and it is sheathed on the catch bar (342)；The backup plate (32) is equipped with and first notch (313) corresponding two the second notches (321), and the second shaft is respectively and fixedly provided in each second notch (321)；Each The other end of the connecting rod (343) is corresponding to be located in second notch (321), and is sheathed on second shaft On.

5. a kind of multifunctional all desk and chair according to claim 4, it is characterised in that: two first notches (313) respectively close at the two sides of the seat board (31) far from the one end of the desktop (21).

6. according to claim 1 to any a kind of multifunctional all desk and chair in 5, it is characterised in that: the pedestal (1) Bottom surrounding be equipped with idler wheel (12).

7. according to claim 1 to any a kind of multifunctional all desk and chair in 5, it is characterised in that: the desk and chair It further include the first drawer (4), the bottom of the desktop (21) is equipped with the first drawer box corresponding with the first drawer (4) (211), first drawer (4) is located in first drawer box (211).

8. a kind of multifunctional all desk and chair according to claim 7, it is characterised in that: set on first drawer (4) There are the first pull head (41).

9. according to claim 1 to any a kind of multifunctional all desk and chair in 5, it is characterised in that: the desk and chair It further include the second drawer (5), the bottom of the seat board (31) is equipped with the second drawer box corresponding with the second drawer (5) (314), second drawer (5) is located in second drawer box (314).

10. a kind of multifunctional all desk and chair according to claim 9, it is characterised in that: set on second drawer (5) There are the second pull head (51).