CN112389128A

CN112389128A - Case capable of placing drawing board

Info

Publication number: CN112389128A
Application number: CN202011226921.1A
Authority: CN
Inventors: 吴敏娜
Original assignee: Hangzhou Haoran Apartment Co ltd
Current assignee: Hangzhou Haoran Apartment Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-02-23

Abstract

The invention discloses a case capable of placing a drawing board, which comprises a case body, a supporting component and a fixing component, wherein the case body is provided with a plurality of through holes; a box body: the performance is movably connected with a box cover, the middle part of the surface of the box cover is provided with a storage groove, two opposite side surfaces of the storage groove are symmetrically provided with guide grooves, a cover plate is connected in the guide grooves in a sliding manner, two sides of the box body are symmetrically provided with height adjusting assemblies, and the box cover is provided with a storage assembly; a support component: including the installation axle, the square groove, the spacing groove, the slider, branch, a supporting block, the installation pole, dead lever and backup pad, the both ends of installation axle are rotated with two opposite flank one end of accomodating the groove respectively and are connected, the square groove symmetry is equipped with two, the bottom difference fixed connection of two square grooves is in the both sides of installation axle, two opposite flank of square groove are located to the spacing groove symmetry, slider sliding connection is in the square groove, this case and bag that can place the drawing board as the drawing board frame, can need not carry the drawing board frame, carried quantity and weight have been reduced, it is more convenient to carry.

Description

Case capable of placing drawing board

Technical Field

The invention relates to the technical field of bags, in particular to a bag capable of containing a drawing board.

Background

The case and bag is the general name to the sack, is the general name of various bags that are used for the dress thing, including general shopping bag, handbag, wallet, knapsack, single shoulder bag, satchel, waist bag and multiple draw-bar box etc. chinese case and bag trade has taken the position in the world, not only the manufacturing center of the world, more the biggest consumer market in the world, in the in-process of going out to paint from life, not only need carry the case that is equipped with the instrument, still need carry drawing board and drawing board frame, increased and carried weight, it is heavier, it is inconvenient to carry.

Disclosure of Invention

The invention aims to overcome the existing defects, provides a case capable of placing a drawing board, can be used as a drawing board frame for placing the drawing board, does not need to carry the drawing board frame, reduces the carrying quantity and weight, is convenient to carry and high in practicability, and can effectively solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the case capable of placing the drawing board comprises a case body, a supporting component and a fixing component;

a box body: the box cover is movably connected with the performance, a containing groove is formed in the middle of the surface of the box cover, guide grooves are symmetrically formed in two opposite side faces of the containing groove, a cover plate is connected in the guide grooves in a sliding mode, height adjusting assemblies are symmetrically arranged on two sides of the box body, and a storage assembly is arranged on the box cover;

a support component: the angle adjusting device comprises an installation shaft, a square groove, two limiting grooves, a sliding block, a supporting rod, a supporting block, an installation rod, a fixing rod and a supporting plate, wherein two ends of the installation shaft are respectively rotatably connected with one end of two opposite side surfaces of the storage groove, the two square grooves are symmetrically provided, the bottom ends of the two square grooves are respectively and fixedly connected with two sides of the installation shaft, the limiting grooves are symmetrically arranged on the two opposite side surfaces of the square groove, the sliding block is slidably connected in the square groove, the bottom end of the supporting rod is fixedly connected to the surface of the sliding block, the bottom surface of the supporting block is fixedly connected to the top end of the supporting rod, two ends of the installation rod respectively penetrate through holes in the middle of the supporting blocks at two sides, the fixing rod is symmetrically and fixedly connected with two sides of the side surface of the;

fixing the assembly: including guide arm, baffle, clamp plate, spring, side lever, square bar and supporting groove, the guide arm symmetry is equipped with two, and two guide arm symmetry fixed connection are at the surperficial both ends of backup pad, the middle part fixed connection of baffle is on the top of guide arm, the one end activity of clamp plate cup joints on the guide arm, the spring cup joints at the top of guide arm, and the both ends of spring are connected with the bottom surface of baffle and the fixed surface of clamp plate respectively, the side lever symmetry is equipped with two, and the one end of two side levers rotates the other end of connecting two opposite flank of accomodating the groove respectively, the both ends of square bar respectively with the relative one end fixed connection of two side levers, the surface of square bar is located in the supporting groove, and the supporting groove corresponds with the.

Further, the angle adjusting assembly comprises a round block and a screw rod, the round block is fixedly connected to the middle of the installation shaft, and the bottom end of the screw rod is rotatably connected to the inside of a rotary groove in the middle of the round block.

Further, angle adjusting subassembly still includes runner and regulating plate, runner fixed connection is on the top of screw rod, the both ends of regulating plate respectively with the relative side fixed connection of the slider of both sides, and the both sides of regulating plate and the both sides sliding connection of spacing groove, and the screw hole threaded connection at the regulating plate through the middle part is on the screw rod, angle adjusting subassembly accessible rotates the runner, can realize the rotation of screw rod, under the limiting displacement in square groove, can realize the lift of regulating plate, then can drive the slider lift, the lift of branch can be realized in the lift of slider, then the accessible backup pad is realized highly adjusting the one end of drawing board, thereby the realization is adjusted the angle of drawing board.

Further, still include spacing hole, screw hole and screw, spacing hole is equipped with two and symmetry fixed connection respectively and installs the both sides of axle, the screw hole is equipped with two, and two screw holes are the symmetry respectively and locate the both sides of accomodating the groove, and spacing hole and screw hole correspond, screw and screw hole threaded connection rotate the installation axle, and until the square trough is in vertical state, at this moment, screw hole and spacing hole correspond, then, pass spacing hole and screw hole threaded connection with the screw, can realize the spacing fixed to the installation axle, avoid installing the axle activity at the in-process of drawing.

Further, the height adjusting assembly comprises side plates, two connecting seats and two upper connecting rods, the two side plates are symmetrically arranged and are respectively and fixedly connected to the middle portions of the two sides of the box body, the two connecting seats are fixedly connected to the middle portions of the bottom surfaces of the side plates, the two upper connecting rods are symmetrically arranged, and one ends of the two upper connecting rods are respectively movably connected with the two sides of the connecting seats.

Further, the height adjusting assembly further comprises two movable blocks, two lower connecting rods and a bottom plate, wherein the two movable blocks are symmetrically arranged and are respectively movably connected with the other ends of the two upper connecting rods, the two lower connecting rods are symmetrically arranged, one ends of the two lower connecting rods are respectively movably connected with the bottom surfaces of the two movable blocks at two sides, and two sides of the surface of the bottom plate are respectively movably connected with the other ends of the two lower connecting rods at two sides.

Further, the height adjusting assembly further comprises a two-way screw and a rotary head, threads with opposite spiral directions are symmetrically arranged on two sides of the two-way screw, two sides of the two-way screw are respectively in threaded connection with threaded holes in the middle of the two-way movable blocks, the rotary head is fixedly connected to one end of the two-way screw, the rotary head can be rotated by the height adjusting assembly, rotation of the two-way screw is achieved, the threads with opposite spiral directions on two sides of the two-way screw can achieve mutual drawing-together of the two-way movable blocks, the movable blocks can drive the upper connecting rods and the lower connecting rods on two sides to fold, meanwhile, the upper connecting rods and the lower connecting rods are gradually changed into a vertical state by an inclined state, after the upper connecting rods and the lower connecting rods reach the vertical state, the box body is located at the.

Further, deposit the subassembly and include hold up tank, fixed plate, spacing clamp and capping, the surface one side of case lid is located to the hold up tank, fixed plate symmetry fixed connection is in the bottom surface both sides of hold up tank, the surface of fixed plate is evenly located to the spacing clamp, the one end swing joint of capping is in one side of hold up tank, deposits the usable spacing clamp of subassembly, can realize the fixed to the painting brush, and then can place a plurality of painting brushes in the hold up tank, is convenient for take.

Further, deposit the subassembly and still include spout, receiver and push-and-pull plate, one side of case lid is located to the spout, receiver sliding connection is in the spout, push-and-pull plate fixed connection can drive the receiver through the pulling push-and-pull plate in the side middle part of receiver and slide, and then can be with the receiver roll-off, can deposit other drawing instruments in the receiver afterwards.

Further, still include mount pad, fixed axle and handle, mount pad fixed connection is in the side middle part of box, the fixed axle rotates to be connected on the mount pad, handle fixed connection is in the side of fixed axle, and the carrying of box can be convenient for to the handle.

Compared with the prior art, the invention has the beneficial effects that: this case and bag that can place drawing board has following benefit:

1. this angle adjusting part accessible of case and bag that can place the drawing board rotates the runner, can realize the rotation of screw rod, under the limiting displacement in square groove, can realize the lift of regulating plate, can drive the slider lift then, the lift of branch can be realized in the lift of slider, then the accessible backup pad realizes highly adjusting the one end of drawing board to the realization is adjusted the angle of drawing board.

2. This can place height control assembly accessible of case and bag of drawing board changes the head, realize the rotation of two-way screw rod, two-way screw rod accessible both sides spiral opposite direction's screw thread, realize drawing close each other of both sides movable block, the movable block can drive the last connecting rod of both sides and lower connecting rod fold, and simultaneously, go up the connecting rod and be by the tilt state with lower connecting rod, change into vertical state gradually, after last connecting rod and lower connecting rod reach vertical state, the box was located maximum height this moment, and then can realize the regulation to the drawing board height.

3. This case and bag accessible that can place the drawing board rotates the installation axle, up to the square groove is in vertical state, at this moment, screw hole and spacing hole correspond, then, pass spacing hole and screw hole threaded connection with the screw, can realize the spacing fixed to installing the axle, avoid installing the axle activity at the in-process of drawing, the usable spacing clamp of subassembly is deposited, can realize the fixing to the painting brush, and then can place a plurality of painting brushes in the holding vessel, be convenient for take, through the pulling push-and-pull board, can drive the receiver and slide, and then can be with the receiver roll-off, then can leave other drawing instruments in the holding vessel.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at the position A of the present invention;

FIG. 3 is an enlarged view of the structure of the present invention at B;

FIG. 4 is a schematic axial side view of the present invention.

In the figure: 1 box body, 11 box cover, 12 containing groove, 2 guide groove, 21 cover plate, 3 supporting component, 31 mounting shaft, 32 square groove, 33 limit groove, 34 slide block, 35 support rod, 36 support block, 37 mounting rod, 38 fixing rod, 39 supporting plate, 4 fixing component, 41 guide rod, 42 baffle, 43 pressing plate, 44 spring, 45 side rod, 46 square rod, 47 groove, 5 angle adjusting component, 51 round block, 52 screw rod, 53 rotating wheel, 54 adjusting plate, 6 limit hole, 61 threaded hole, 62 screw, 7 height adjusting component, 71 side plate, 72 connecting seat, 73 upper connecting rod, 74 movable block, 75 lower connecting rod, 76 bottom plate, 77 two-way screw rod, 78 rotating head, 8 storage component, 81 storage groove, 82 fixing plate, 83 limit clamp, 84 groove cover, 85 sliding groove, 86 storage box, 87 push-pull plate, 9 mounting seat, 91 fixing shaft and 92 handle.

Detailed Description

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

Referring to fig. 1-4, the present invention provides a technical solution: the case capable of placing the drawing board comprises a case body 1, a supporting component 3 and a fixing component 4;

a box body 1: the expression is movably connected with a box cover 11, the middle part of the surface of the box cover 11 is provided with a containing groove 12, two opposite side surfaces of the containing groove 12 are symmetrically provided with guide grooves 2, a cover plate 21 is connected in the guide grooves 2 in a sliding way, two sides of the box body 1 are symmetrically provided with a height adjusting assembly 7, the height adjusting assembly 7 comprises a side plate 71, a connecting seat 72 and an upper connecting rod 73, the side plate 71 is symmetrically provided with two movable blocks 74, a lower connecting rod 75 and a bottom plate 76, the two movable blocks 74 are symmetrically provided, the two movable blocks 74 are respectively movably connected with the other ends of the two upper connecting rods 73, the lower connecting rod 75 is symmetrically provided with two lower connecting rods 75, and one end of each lower connecting rod 75 is respectively movably connected with the bottom surfaces of the movable blocks 74 on two sides, the two sides of the surface of the bottom plate 76 are movably connected with the other ends of the lower connecting rods 75 at the two sides respectively, the box cover further comprises a bidirectional screw 77 and a rotary head 78, the two sides of the bidirectional screw 77 are symmetrically provided with threads with opposite spiral directions, the two sides of the bidirectional screw 77 are respectively in threaded connection with threaded holes in the middle of the movable blocks 74 at the two sides, the rotary head 78 is fixedly connected with one end of the bidirectional screw 77, the box cover 11 is provided with a storage assembly 8, the storage assembly 8 comprises a storage tank 81, a fixed plate 82, a limit clamp 83 and a groove cover 84, the storage tank 81 is arranged at one side of the surface of the box cover 11, the fixed plate 82 is symmetrically and fixedly connected with the two sides of the bottom surface of the storage tank 81, the limit clamp 83 is uniformly arranged on the surface of the fixed plate 82, one end of the groove cover 84 is movably connected with one side of the storage tank 81, the push-pull plate 87 is fixedly connected to the middle of the side surface of the storage box 86;

the supporting component 3: comprises an installation shaft 31, a square groove 32, a limiting groove 33, a sliding block 34, a supporting rod 35, a supporting block 36, an installation rod 37, a fixed rod 38 and a supporting plate 39, wherein two ends of the installation shaft 31 are respectively rotatably connected with one end of two opposite side surfaces of the accommodation groove 12, the square groove 32 is symmetrically provided with two ends, the bottom ends of the two square grooves 32 are respectively and fixedly connected with two sides of the installation shaft 31, the limiting groove 33 is symmetrically arranged on two opposite side surfaces of the square groove 32, the sliding block 34 is slidably connected in the square groove 32, the bottom end of the supporting rod 35 is fixedly connected on the surface of the sliding block 34, the bottom surface of the supporting block 36 is fixedly connected with the top end of the supporting rod 35, two ends of the installation rod 37 respectively penetrate through holes in the middle parts of the supporting blocks 36 on two sides, the fixed rods 38 are symmetrically and fixedly connected with two sides of the installation rod 37, two sides of the supporting plate 39 are respectively and, the round block 51 is fixedly connected to the middle part of the mounting shaft 31, the bottom end of the screw rod 52 is rotatably connected to the rotating groove in the middle part of the round block 51, the adjusting device further comprises a rotating wheel 53 and an adjusting plate 54, the rotating wheel 53 is fixedly connected to the top end of the screw rod 52, two ends of the adjusting plate 54 are respectively fixedly connected with the opposite side surfaces of the sliding blocks 34 on two sides, two sides of the adjusting plate 54 are slidably connected with two sides of the limiting groove 33, and the adjusting plate 54 is in threaded connection with the screw rod 52 through a threaded hole;

the fixing component 4: including guide rod 41, baffle 42, clamp plate 43, spring 44, side lever 45, square bar 46 and supporting groove 47, guide rod 41 symmetry is equipped with two, and two guide rod 41 symmetry fixed connection are at the surperficial both ends of backup pad 39, the middle part fixed connection of baffle 42 is on the top of guide rod 41, the one end activity of clamp plate 43 is cup jointed on guide rod 41, spring 44 cup joints the top at guide rod 41, and spring 44's both ends respectively with the bottom surface of baffle 42 and the fixed surface of clamp plate 43 be connected, side lever 45 symmetry is equipped with two, and the one end of two side lever 45 rotates respectively to be connected the other end of two opposite flank of accomodating groove 12, square bar 46's both ends respectively with two side lever 45's relative one end fixed connection, supporting groove 47 locates square bar 46's surface, and supporting groove 47 corresponds with backup pad 39.

Wherein: the limiting device further comprises two limiting holes 6, two threaded holes 61 and two screws 62, wherein the two limiting holes 6 are symmetrically and fixedly connected to two sides of the mounting shaft 31 respectively, the two threaded holes 61 are symmetrically arranged on two sides of the accommodating groove 12 respectively, the limiting holes 6 correspond to the threaded holes 61, and the screws 62 are in threaded connection with the threaded holes 61; the box body is characterized by further comprising a mounting seat 9, a fixing shaft 91 and a handle 92, wherein the mounting seat 9 is fixedly connected to the middle of the side face of the box body 1, the fixing shaft 91 is rotatably connected to the mounting seat 9, and the handle 92 is fixedly connected to the side face of the fixing shaft 91.

Angle adjusting assembly 5 accessible rotates runner 53, can realize screw rod 52's rotation, under the limiting displacement of square groove 32, can realize adjusting plate 54's lift, can drive slider 34 then and go up and down, and the lift of branch 35 can be realized in the lift of slider 34, then accessible backup pad 39 realizes highly adjusting the one end of drawing board to the realization is adjusted the angle of drawing board.

The height adjusting assembly 7 accessible rotates turn 78, realize the rotation of two-way screw rod 77, the opposite screw thread of two-way screw rod 77 accessible both sides spiral direction, realize drawing close each other of both sides movable block 74, movable block 74 can drive the upper connecting rod 73 and the lower connecting rod 75 of both sides and fold, simultaneously, upper connecting rod 73 and lower connecting rod 75 are by the tilt state, change into vertical state gradually, after upper connecting rod 73 and lower connecting rod 75 reach vertical state, box 1 is located maximum height this moment, and then can realize the regulation to the drawing board height.

Deposit the usable limit clamp 83 of subassembly 8, can realize the fixed to the painting brush, and then can place a plurality of painting brushes in hold up tank 81, be convenient for take, through pulling push-and-pull plate 87, can drive receiver 86 and slide, and then can be with receiver 86 roll-off, then can deposit other drawing instruments in receiver 86.

When in use:

firstly, the mounting shaft 31 is rotated until the square groove 32 is in a vertical state, at the time, the threaded hole 61 corresponds to the limiting hole 6, then, the screw 62 penetrates through the limiting hole 6 to be in threaded connection with the threaded hole 61, so that the limiting fixation of the mounting shaft 31 can be realized, the mounting shaft 31 is prevented from moving in the drawing process, secondly, one end of the drawing board is placed in the square groove 47 on the square rod 46, the other end of the drawing board is placed on the supporting plate 39, meanwhile, the pressing plate 43 is upwards slid, the edge of the drawing board is positioned below the pressing plate 43, at the moment, the spring 44 is in a compressed state, then the pressing plate 43 is loosened, under the action of the spring 44, the drawing board can be pressed and fixed, then, the rotating wheel 53 is rotated, the rotation of the screw 52 can be realized, under the limiting action of the square groove 32, the lifting of the adjusting plate 54 can be realized, then, the sliding, then, the height of one end of the drawing board can be adjusted through the supporting plate 39, so that the angle of the drawing board can be adjusted, the rotation of the two-way screw 77 is realized by rotating the rotary head 78, the two-way screw 77 can be drawn close to each other through the threads with opposite spiral directions on two sides of the two-way screw 74, the two-way screw 74 can drive the upper connecting rod 73 and the lower connecting rod 75 on two sides to fold, meanwhile, the upper connecting rod 73 and the lower connecting rod 75 gradually change from an inclined state to a vertical state, when the upper connecting rod 73 and the lower connecting rod 75 reach the vertical state, the box body 1 is at the maximum height, so that the height of the drawing board can be adjusted, the storage assembly 8 can utilize the limit clamp 83 to fix the drawing pen, and then a plurality of drawing pens can be placed in the storage groove 81 to be conveniently taken and taken out, the storage box 86 can be driven to slide by pulling the push, then can deposit other drawing instruments in receiver 86, after the drawing finishes, with branch 35, adjust to minimum height, unscrew screw 62, rotate installation axle 31, until square groove 32 is in the horizontality, rotate installation pole 37 again, make it be in the horizontality, change square bar 46 to the horizontality, slide apron 21 in guide slot 2, can realize accomodating into of supporting component 3 and accomodate the inslot 12.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Case and bag that can place the drawing board, its characterized in that: comprises a box body (1), a supporting component (3) and a fixing component (4);

case (1): the box cover (11) is movably connected with the performance, a storage groove (12) is formed in the middle of the surface of the box cover (11), guide grooves (2) are symmetrically formed in two opposite side surfaces of the storage groove (12), a cover plate (21) is connected in the guide grooves (2) in a sliding mode, height adjusting assemblies (7) are symmetrically arranged on two sides of the box body (1), and a storage assembly (8) is arranged on the box cover (11);

support assembly (3): comprises an installation shaft (31), a square groove (32), a limiting groove (33), a sliding block (34), a support rod (35), a support block (36), an installation rod (37), a fixing rod (38) and a support plate (39), wherein two ends of the installation shaft (31) are respectively rotatably connected with one end of two opposite side surfaces of a storage groove (12), the square groove (32) is symmetrically provided with two ends, the bottom ends of the two square grooves (32) are respectively and fixedly connected with two sides of the installation shaft (31), the limiting groove (33) is symmetrically arranged on two opposite side surfaces of the square groove (32), the sliding block (34) is slidably connected in the square groove (32), the bottom end of the support rod (35) is fixedly connected on the surface of the sliding block (34), the bottom surface of the support block (36) is fixedly connected on the top end of the support rod (35), two ends of the installation rod (37) respectively penetrate through holes in the middle parts of the support blocks (36, the fixing rods (38) are symmetrically and fixedly connected to two sides of the side surface of the mounting rod (37), two sides of the supporting plate (39) are respectively and fixedly connected with one ends of the fixing rods (38) on two sides, and the supporting component (3) is provided with an angle adjusting component (5);

fixing assembly (4): comprises two guide rods (41), a baffle (42), a pressure plate (43), a spring (44), side rods (45), a square rod (46) and a supporting groove (47), wherein the two guide rods (41) are symmetrically and fixedly connected with two ends of the surface of a supporting plate (39), the middle part of the baffle (42) is fixedly connected with the top ends of the guide rods (41), one end of the pressure plate (43) is movably sleeved on the guide rods (41), the spring (44) is sleeved on the top part of the guide rods (41), two ends of the spring (44) are respectively fixedly connected with the bottom surface of the baffle (42) and the surface of the pressure plate (43), the two side rods (45) are symmetrically arranged, one ends of the two side rods (45) are respectively and rotatably connected with the other ends of two opposite side surfaces of the accommodating groove (12), two ends of the square rod (46) are respectively and fixedly connected with the opposite ends of the two side rods (45), the branch groove (47) is formed in the surface of the square rod (46), and the branch groove (47) corresponds to the support plate (39).

2. A case capable of holding a sketchpad according to claim 1, wherein: the angle adjusting assembly (5) comprises a round block (51) and a screw rod (52), the round block (51) is fixedly connected to the middle of the mounting shaft (31), and the bottom end of the screw rod (52) is rotatably connected to the middle of the round block (51) in a rotating groove.

3. A case capable of holding a sketchpad according to claim 2, wherein: angle adjusting part (5) still include runner (53) and regulating plate (54), runner (53) fixed connection is on the top of screw rod (52), the both ends of regulating plate (54) respectively with the relative side fixed connection of slider (34) of both sides, and the both sides of regulating plate (54) and the both sides sliding connection of spacing groove (33), and regulating plate (54) are on screw rod (52) through the screw hole threaded connection at middle part.

4. A case capable of holding a sketchpad according to claim 1, wherein: still include spacing hole (6), screw hole (61) and screw (62), spacing hole (6) are equipped with two and symmetry fixed connection respectively in the both sides of installation axle (31), screw hole (61) are equipped with two, and the both sides of accomodating groove (12) are located to two screw hole (61) symmetries respectively, and spacing hole (6) and screw hole (61) correspond, screw (62) and screw hole (61) threaded connection.

5. A case capable of holding a sketchpad according to claim 1, wherein: the height adjusting assembly (7) comprises side plates (71), connecting seats (72) and upper connecting rods (73), wherein the side plates (71) are symmetrically provided with two connecting rods and are fixedly connected to the middle parts of the two sides of the box body (1) respectively, the connecting seats (72) are fixedly connected to the middle parts of the bottom surfaces of the side plates (71), the upper connecting rods (73) are symmetrically provided with two connecting rods, and one ends of the two upper connecting rods (73) are movably connected with the two sides of the connecting seats (72) respectively.

6. A case capable of containing a drawing board according to claim 5, wherein: height adjusting subassembly (7) still include movable block (74), lower connecting rod (75) and bottom plate (76), movable block (74) symmetry is equipped with two, and two movable blocks (74) respectively with two other end swing joint of going up connecting rod (73), lower connecting rod (75) symmetry is equipped with two, and the one end of two lower connecting rods (75) respectively with the bottom surface swing joint of the movable block (74) of both sides, the surperficial both sides of bottom plate (76) respectively with the other end swing joint of the lower connecting rod (75) of both sides.

7. A case or bag on which a drawing board can be placed according to claim 6, wherein: the height adjusting assembly (7) further comprises a bidirectional screw rod (77) and a rotary head (78), threads with opposite spiral directions are symmetrically arranged on two sides of the bidirectional screw rod (77), two sides of the bidirectional screw rod (77) are respectively in threaded connection with threaded holes in the middle of two side movable blocks (74), and the rotary head (78) is fixedly connected to one end of the bidirectional screw rod (77).

8. A case capable of holding a sketchpad according to claim 1, wherein: deposit subassembly (8) including hold up tank (81), fixed plate (82), spacing clamp (83) and capping (84), the surperficial one side of case lid (11) is located in hold up tank (81), fixed plate (82) symmetry fixed connection is in the bottom surface both sides of hold up tank (81), the surface of fixed plate (82) is evenly located in spacing clamp (83), the one end swing joint of capping (84) is in one side of hold up tank (81).

9. A case or bag on which a sketchpad can be placed according to claim 8, wherein: the storage assembly (8) further comprises a sliding groove (85), a storage box (86) and a push-pull plate (87), the sliding groove (85) is formed in one side of the box cover (11), the storage box (86) is connected in the sliding groove (85) in a sliding mode, and the push-pull plate (87) is fixedly connected to the middle of the side face of the storage box (86).

10. A case capable of holding a sketchpad according to claim 1, wherein: still include mount pad (9), fixed axle (91) and handle (92), mount pad (9) fixed connection is in the side middle part of box (1), fixed axle (91) rotates to be connected on mount pad (9), handle (92) fixed connection is in the side of fixed axle (91).