CN213962309U - Multifunctional drawing board for indoor design - Google Patents

Abstract

The utility model relates to an indoor design multifunctional drawing board, which effectively solves the problems that the angle of the drawing board can not be adjusted and the adjusting effect is not ideal; the technical scheme comprises the following steps: this multi-functional drawing board of indoor design below is provided with connecting rod structure, when the connecting rod connecting block removes to the direction of keeping away from or being close the drawing board, the landing leg can expand simultaneously or shrink and can drive the vertical one side of drawing board simultaneously and install stroke adjusting device's first slide bar seat axial displacement, and the drawing board angle also adjusts the completion when opening, uses convenient and fast more, practices thrift designer's time.

Description

Multifunctional drawing board for indoor design

Technical Field

The utility model belongs to the technical field of the interior design instrument, concretely relates to multi-functional drawing board of interior design.

Background

The indoor design is that according to the use property, the environment and the corresponding standard of the building, the material technical means and the building design principle are applied to create the indoor environment which has reasonable functions and meets the requirements of people on material and mental life, the space environment has use value and meets the corresponding functional requirements, meanwhile, the mental factors such as historical veins, architectural style, environmental atmosphere and the like are reflected, and the purpose of creating the indoor environment meeting the requirements of people on material and mental life is definitely taken as the indoor design;

when the designer does indoor design, draw the sketch of the design in the brain on the drawing earlier usually, then perfect the detail with software, because different drawing habits of different designers are different with every designer's height, the angle of the required drawing board of every designer drawing is different, and current drawing board majority is unable angle regulation or regulating effect unsatisfactory, and current drawing board can't expand fast or shrink waste time.

SUMMERY OF THE UTILITY MODEL

To the above, for overcoming the defect of prior art, the utility model provides a multi-functional drawing board of indoor design with adjustable angle, this multi-functional drawing board of indoor design below is provided with the connecting rod structure, when the connecting rod connecting block when moving to the direction of keeping away from or being close the drawing board, the landing leg can expand or contract simultaneously, through adjusting stroke adjusting device, can make the different angle of drawing board slope.

In order to achieve the above purpose, the utility model provides the following technical scheme: indoor decoration multifunctional drawing board, including the drawing board, its characterized in that, terminal surface just are located four angle position department fixed mounting and have the landing leg connecting block under the drawing board, the landing leg connecting block rotates and installs the landing leg, and vertical slidable mounting has the second slide bar of rotation installation in the landing leg in first slide bar and the first slide bar, and the vertical slip of terminal surface central point position has the connecting rod connecting block under the drawing board, is connected with connecting rod structure and this connecting rod structure between connecting rod connecting block and the landing leg and satisfies: when the connecting rod connecting block moves towards the direction far away from the drawing board, the plurality of supporting legs can be unfolded at the same time, and when the connecting rod connecting block moves towards the direction close to the drawing board, the plurality of supporting legs can be contracted at the same time; be located and install stroke control device between vertical one side matched with landing leg connecting block of drawing board and the landing leg, this stroke control device satisfies: when the landing leg produces the rotation around the landing leg connecting block with it complex, can realize driving first slide bar through scope adjusting device and outwards slide different distances in the landing leg, install paper pressing mechanism on the drawing board.

Preferably, terminal surface central point puts fixed mounting has the round bar of vertical extension under the drawing board, the vertical slidable mounting of connecting rod connecting block on the round bar, and connecting rod connecting block interval encircles and rotates and install the first connecting rod corresponding with the landing leg, rotates on the first connecting rod to install second connecting rod and the second connecting rod other end and rotates and install terminal surface under the drawing board, rotates on the landing leg to install third connecting rod and the third connecting rod other end and first connecting rod, the coaxial rotation of second connecting rod.

Preferably, be fixed with first gear shaft and landing leg on the landing leg connecting block and rotate through first gear shaft and install on the landing leg connecting block, first gear shaft stretches out landing leg one end axial slidable mounting and has the sleeve, the inherent first gear of spacer sleeve on the sleeve, second gear and first gear, second gear diameter is different, rotate on the landing leg and install second gear shaft and stretch out the inherent third gear of landing leg one end spacer sleeve, the fourth gear, the third gear cooperatees with the second gear and the fourth gear cooperatees with first gear, can realize when removing the sleeve: so that the first gear is meshed with the fourth gear or the second gear is meshed with the third gear, and the second gear shaft is connected with the second sliding rod through a transmission device.

Preferably, the transmission device comprises a first bevel gear which rotates coaxially with the second gear shaft, the first bevel gear is engaged with a second bevel gear which is rotatably installed on the supporting leg, the second bevel gear and the second sliding rod rotate coaxially, and the first sliding rod and the supporting leg are installed in a threaded fit mode.

Preferably, fixed mounting has the carriage block and has slidable mounting in the carriage block has the gag lever post on the sleeve, is connected with expanding spring between gag lever post and the carriage block, is fixed with on the landing leg connecting block 2 with carriage block sliding fit pull out insert the back shaft and pull out insert the back shaft on the interval be provided with gag lever post matched with spacing hole.

Preferably, the paper pressing mechanism includes: the drawing board is transversely installed with the first nipper of longitudinal extension and is installed with the second nipper that transversely extends in the rotation of drawing board vertical both sides, and through bevel gear group link between adjacent first nipper, the second nipper, one of them bevel gear group link has the torsional spring and the torsional spring other end is fixed on the drawing board.

Preferably, the drawing board is rotatably provided with a transition shaft and one end of a torsion spring is fixed on the transition shaft, the transition shaft is connected with the bevel gear group and the transition shaft is far away from an inherent ratchet wheel of a torsion spring end sleeve, the side wall of the drawing board is fixedly provided with a mounting block and a pawl which is matched with the ratchet wheel, and a reset spring is connected between the pawl and the mounting block.

Preferably, the bottom of the supporting leg is fixed with a universal foot base.

Preferably, the side wall of the drawing board is provided with a handle.

The beneficial effects of the technical scheme are as follows:

1. the support legs are arranged below four corners of the indoor design multifunctional drawing board and provided with the connecting rod mechanisms matched with the support legs, when the connecting rod connecting blocks move in the direction far away from the drawing board, the support legs can be unfolded simultaneously, and when the connecting rod connecting blocks move in the direction close to the drawing board, the support legs can be contracted simultaneously, so that the indoor design multifunctional drawing board is more convenient to operate and saves time;

2. when a designer opens the drawing board, the first sliding rod is driven to move for a certain distance along the supporting leg matched with the first sliding rod through the stroke adjusting device arranged on the supporting leg, the other side of the drawing board is not provided with the stroke adjusting device, the heights of the first sliding rods of the first sliding rod and the second sliding rod are different, and therefore angle adjustment is achieved;

3. the universal angle seat is mounted on the first sliding rod, the universal foot seat can achieve rotation in all directions, the contact area between the universal foot seat and a table is large, and the stability of the drawing board is improved.

Drawings

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

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a view taken along line C of FIG. 1;

FIG. 4 is an enlarged view of a portion I of FIG. 2;

FIG. 5 is a cross-sectional view of BB of FIG. 2;

FIG. 6 is a view in the direction E of FIG. 1;

fig. 7 is a schematic view of the support leg of the present invention fully retracted;

FIG. 8 is a schematic view of the paper pressing mechanism of the present invention;

FIG. 9 is a partial enlarged view of II in FIG. 8;

fig. 10 is a cross-sectional view of FF in fig. 4.

In the drawing, a drawing board 1, a leg connecting block 2, a leg 3, a first slide bar 4, a second slide bar 5, a link connecting block 6, a first link 7, a second link 8, a third link 9, a first gear shaft 10, a first gear 11, a second gear 12, a second gear shaft 13, a third gear 14, a fourth gear 15, a first bevel gear 16, a second bevel gear 17, a carrier block 18, a link supporting block 19, a limiting rod 20, a plug supporting shaft 21, a first platen 22, a second platen 23, a torsion spring 24, a transition shaft 25, a ratchet 26, a mounting block 27, a pawl 28, a universal foot rest 29, a handle 30, a hand wheel 31, a round bar 32, a spring positioning pin 33, a second shaft 34, a third shaft 35, a fourth shaft 36, a first positioning block 37, a second positioning block 38, a sleeve 39, a telescopic spring 40, a limiting hole 41, a return spring 42, a third bevel gear 43, a fourth bevel gear 44, a first shaft 45.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments with reference to the accompanying drawings in which reference is made to the accompanying drawings 1 to 10, and the structural matters in the embodiments are described below.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

The embodiment one, this embodiment provides a multi-functional drawing board of interior design, and it is shown with reference to fig. 2, including drawing board 1, its characterized in that, drawing board 1 lower terminal surface just is located four angular position department fixed mounting has landing leg connecting block 2, landing leg connecting block 2 rotates and installs landing leg 3, vertical slidable mounting has second slide bar 5 of rotating installation in landing leg 3 in first slide bar 4 and the first slide bar 4 axial slidable mounting, the vertical slip of terminal surface central point puts under drawing board 1 has connecting rod connecting block 6, be connected with connecting rod structure and this connecting rod structure between connecting rod connecting block 6 and the landing leg 3 and satisfy: when the connecting rod connecting block 6 moves away from the drawing board, the plurality of legs 3 can be unfolded at the same time, and when the connecting rod connecting block 6 moves towards the drawing board, the plurality of legs 3 can be contracted at the same time (see fig. 7); be located and install stroke control device between vertical one side matched with landing leg connecting block 2 of drawing board and landing leg 3, this stroke control device satisfies: when the supporting legs 3 rotate around the supporting leg connecting blocks 2 matched with the supporting legs, the first sliding rods 4 can be driven to slide outwards for different distances in the supporting legs 3 through the stroke adjusting devices, before a designer opens the drawing board 1, the stroke adjusting devices are firstly adjusted to gears corresponding to required angles, the drawing board 1 drives the first sliding rods 4 to slide outwards for a certain distance along the supporting legs 3 when being opened, the heights of the supporting legs 3 provided with the stroke adjusting devices on one longitudinal side of the drawing board 1 and the supporting legs 3 not provided with the stroke adjusting devices on one side of the drawing board 1 are different, so that the drawing board 1 inclines for a certain angle, and the supporting legs 3 provided with the stroke adjusting devices can be ensured to slide outwards for the same distance along the supporting legs 3 only by adjusting to the same gears;

a paper pressing mechanism is installed on a drawing board 1, and the paper pressing mechanism can realize simultaneous pressing of four edges of a drawing so as to ensure that the drawing cannot move and wrinkle during drawing of a designer.

In the second embodiment, referring to fig. 3 on the basis of the first embodiment, the drawing board 1 is characterized in that a vertically extending round bar 32 is fixedly installed at the center of the lower end surface of the drawing board 1, 2 positioning holes (referring to fig. 6) are vertically distributed at intervals on the round bar 32, the connecting rod connecting block 6 is vertically slidably installed on the round bar 32, and a spring positioning pin 33 (referring to fig. 6) is fixedly installed on the connecting rod block 6;

the connecting rod connecting block 6 is provided with first connecting rods 7 corresponding to the supporting legs 3 in a surrounding and rotating mode at intervals, the first connecting rods 7 are provided with second connecting rods 8 in a rotating mode, the other ends of the second connecting rods 8 are arranged on the lower end face of the drawing board 1 in a rotating mode, the supporting legs 3 are provided with third connecting rods 9 in a rotating mode, the other ends of the third connecting rods 9 are arranged on the first connecting rods 7 and the second connecting rods 8 in a rotating mode, when the connecting rod connecting blocks 6 move in the direction away from the drawing board 1, the first connecting rods 7 drive the second connecting rods 8 to rotate around connecting rod supporting blocks 19 matched with the second connecting rods 8 so as to drive the third connecting rods 9 to rotate, the third connecting rods 9 drive the supporting legs 3 to rotate around supporting leg connecting blocks 2 matched with the supporting rods, the drawing board 1 is in a contraction state, at the moment, the spring positioning pins 33 are arranged in positioning holes above the round rods 32, and when the spring positioning pins 33 enter the positioning holes below, landing leg 3 is opened completely, connecting rod connecting block 6 can not slide along round bar 32 under the effect of dead weight this moment, in order to guarantee that the designer is at the in-process drawing board of drawing and keep stable, when connecting rod connecting block 6 removes to the direction that is close drawing board 1, landing leg 3 contracts, get into the top locating hole when spring locating pin 33, landing leg 3 contracts completely (refer to fig. 7), link mechanism can not move under the effect of no external force this moment and in order to guarantee drawing board 1 placing the stability of whole in-process, the designer is after having used the drawing board, thereby remove connecting rod connecting block 6 and order about 3 contractions of landing leg to reach the purpose of practicing thrift the space.

In a third embodiment, on the basis of the first embodiment, referring to fig. 5, the first gear shaft 10 is fixed on the leg connecting block 2, and the leg 3 is rotatably mounted on the leg connecting block 2 through the first gear shaft 10, a sleeve 39 is axially slidably mounted at one end of the first gear shaft 10, which extends out of the leg 3, a first gear 11 and a second gear 12 are fixed on the sleeve 39, diameters of the first gear 11 and the second gear 12 are different, a second gear shaft 13 is rotatably mounted on the leg 3, a third gear 14 and a fourth gear 15 are fixed on one end of the leg 3, which extends out of the leg 3, a third gear 14 and a fourth gear 15 are fixed on the sleeve 39, the third gear 14 and the second gear 12 are matched, and the fourth gear 15 and the first gear 11 are matched, when the sleeve 39 is moved: so that the first gear 11 meshes with the fourth gear 15 or the second gear 12 meshes with the third gear 14, said second gear shaft 13 being connected to the second sliding rod 5 by transmission means;

when the leg 3 is fully retracted or fully opened, the leg 3 rotates 90 degrees, when the leg 3 is in the opening process, the leg 3 drives the fourth gear 15 to rotate around the first gear 11 or the third gear 14 to rotate around the second gear 12, the third gear 14 or the fourth gear 15 transmits power to the second gear shaft 13 which coaxially rotates, then the second gear shaft 13 transmits power to the first sliding rod 4 through a transmission device and drives the first sliding rod 4 to axially move for a certain distance along the leg 3, because the diameters of the third gear 14 and the third gear 15 are different to cause the second gear shaft 13 to rotate for a certain angle, and the power transmitted by the transmission device drives the first sliding rod 4 to axially move for different distances along the leg 3.

In the fourth embodiment, on the basis of the third embodiment, referring to fig. 5, the transmission device comprises a first bevel gear 16 coaxially rotating with a second gear shaft 13, the first bevel gear 16 is engaged with a second bevel gear 17 rotatably mounted on the support leg 3, the second bevel gear 17 coaxially rotates with a second slide rod 5, the first slide rod 4 and the second slide rod 5 are axially slidably matched, the first slide rod 4 and the support leg 3 are threadedly matched, the second gear shaft 13 transmits power to the first bevel gear 16, the first bevel gear 16 rotates by a certain angle and drives the second bevel gear 17 to rotate by a corresponding angle, the second bevel gear 17 drives the second slide rod 5 to rotate by a corresponding angle, the second slide rod 5 drives the first slide rod 4 to rotate and the second slide rod 5 can freely slide in the first slide rod 4, thus ensuring that the first bevel gear 16 and the second bevel gear 17 are always in engagement and do not disengage during the entire movement, the first slide rod 4 is axially displaced a certain distance by the drive of the second slide rod 5 in cooperation with the screw thread of the leg 3 with which it is engaged.

Fifth embodiment, on the basis of the third embodiment, as shown in fig. 10, the leg connecting block 2 is fixed with a bearing block 18 on the sleeve 17, a limiting rod 20 is slidably mounted in the bearing block 18, a telescopic spring 40 is connected between the limiting rod 20 and the bearing block 18, a plugging and unplugging support shaft 21 slidably engaged with the bearing block 18 is fixed on the leg connecting block 2, and limiting holes (shown in fig. 5) engaged with the limiting rod 20 are arranged at intervals on the plugging and unplugging support shaft 21, the bearing block 18 moves along the plugging and unplugging support shaft 21, the bearing block 18 drives the first gear 11 and the second gear 12 to move axially along the first gear shaft 13, during the movement, the limiting rod 20 enters the engaged limiting hole 41 under the action of the telescopic spring 40, at this time, the first gear 11 is engaged with the fourth gear 15, or the second gear 12 is engaged with the third gear 14, at this time, under the action of the extension spring 40, the limiting rod 20 and the matched limiting hole 41 cannot be disengaged without the action of external force, so that the first gear 11 and the fourth gear 15 are meshed or the second gear 12 and the third gear 14 are always kept meshed, and therefore, the situation that the gears are disengaged during the unfolding process of the supporting legs 3, so that the distance of the outward movement of the first sliding rod 4 on the support 3 is inconsistent, and the angle adjustment of the drawing board 1 fails is prevented.

In a sixth embodiment, as shown in fig. 8, in addition to the first embodiment, the paper pressing mechanism includes: the drawing board 1 transversely rotates both sides and installs the first paper pressing plate 22 of vertical extension and the drawing board 1 longitudinally both sides rotate and install the second paper pressing plate 23 of horizontal extension, through bevel gear group link between the first paper pressing plate 22 of adjacent, the second paper pressing plate 23, one of them bevel gear group link has torsional spring 24 and the torsional spring 24 other end is fixed on drawing board 1, first paper pressing plate 22 and first paper pressing plate 23 can rotate the same angle simultaneously under the effect of bevel gear group, and the designer needs a hand to keep hand wheel 31 in the quiescent condition always when placing the drawing, and the drawing is placed to the other hand, and after the drawing was placed, unclamp hand wheel 31, under the effect of torsional spring 24, the first paper pressing plate 22 and the second paper pressing plate 23 through bevel gear group link compress tightly the drawing simultaneously.

Seventh embodiment, on the basis of the sixth embodiment, as shown in fig. 8 and 9, the drawing board 1 is rotatably mounted with a transition shaft 25, one end of a torsion spring 24 is fixed on the transition shaft 25, the transition shaft 25 is connected with a bevel gear set, one end of the transition shaft 25, which is far away from the torsion spring 24, is sleeved with an inherent ratchet 26, the bevel gear set comprises a third bevel gear 43 and a fourth bevel gear 44 which are matched, the transition shaft 25 is mounted with a first shaft 45 which coaxially rotates, two ends of the first shaft 45 are connected with a second shaft 34 and a third shaft 35 which are rotatably mounted on the drawing board 1 through the bevel gear set, one end of the second shaft 34 and one end of the fourth shaft 36, which is far away from the first shaft 45, are connected with a third shaft 35 which is rotatably mounted on the drawing board 1 through the bevel gear set, one first pressing board 22 is rotatably mounted on the pressing board 1 through the first shaft 45, the other first pressing board 22 is rotatably mounted on the drawing board 1 through the third shaft 35, one second paper pressing plate 23 is rotatably mounted on the drawing board 1 through a second shaft 34, the other second paper pressing plate 23 is rotatably mounted on the drawing board 1 through a fourth shaft 36, a first positioning block 37 extending longitudinally is mounted on one lateral side of the drawing board 1, a second positioning block 38 extending transversely is mounted on one longitudinal side of the drawing board 1, a mounting block 27 is fixed on the side wall of the drawing board 1, a pawl 28 matched with the ratchet 26 is slidably mounted on the mounting block 27, and a return spring 42 is connected between the pawl 28 and the mounting block 27;

before drawing, a designer needs to place a drawing sheet, the handwheel 31 is screwed to rotate anticlockwise so that the first shaft 45 and the first paper pressing plate 22 fixed on the first shaft 45 rotate anticlockwise by a certain angle, the first shaft 45 is meshed through the third bevel wheel 32 and the fourth bevel wheel 33, the teeth of the first shaft 45 and the fourth bevel wheel 33 are the same, the power transmission second shaft 34 drives the second shaft 34 and the second paper pressing plate 23 fixed on the second shaft 34 to rotate clockwise by a corresponding angle, the second shaft 34 transmits power to the third shaft 35 through the third bevel wheel 43 and the fourth bevel wheel 44, the third shaft 35 and the first paper pressing plate 22 fixed on the third shaft 35 rotate clockwise by a certain angle, the third shaft 35 transmits power to the fourth shaft 36 through the third bevel wheel 32 and the fourth bevel wheel 44, the fourth shaft 36 and the second paper pressing plate 23 fixed on the fourth shaft 36 rotate clockwise by a certain angle, when the handwheel 31 is screwed to rotate a specific angle to make the first pressing plate 22 and the second pressing plate 23 perpendicular to the upper end face of the drawing board 1, the designer places the drawing on the drawing board 1 and fixes the side edges of the drawing respectively on the first positioning block 37 and the second positioning block 38 (shown in figure 10) of the upper end face of the drawing board 1 in parallel, after the drawing is placed, the pawl 28 moves outwards for a certain distance along the mounting block 27, at this time, the pawl 28 is separated from the ratchet 26, the first paper pressing plate 22 and the second paper pressing plate 23 compress the drawings at the same time under the action of the torsion spring 24, the drawings are prevented from being folded, the reset spring 42 has the function that a designer can ensure that the first positioning block 22 and the second positioning block 23 cannot compress the drawings under the action of the torsion spring 24 when the drawing is placed, and only when the designer finishes placing the drawings, the designer moves the pawl 28 to disengage the pawl 28 from the ratchet 26 before the paper is automatically pressed.

In an eighth embodiment, as shown in fig. 5, a universal foot seat 29 is fixed at the bottom of the leg, the universal foot seat 29 can rotate in various directions, the contact area between the universal foot seat and the table is large, and the stability of the drawing board 1 placed on the table is increased.

In a ninth embodiment, referring to fig. 8, on the basis of the first embodiment, a handle 30 is mounted on a side wall of the drawing board 1, and the handle is used for facilitating a designer to take and place the drawing board 1.

The above description is only for the purpose of illustration, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.

Claims (9)

1. Multi-functional drawing board of indoor decoration, including drawing board (1), its characterized in that, drawing board (1) lower terminal surface just is located four angle position fixed mounting has landing leg connecting block (2), landing leg connecting block (2) are rotated and are installed landing leg (3), axial slidable mounting has second slide bar (5) of rotation installation in landing leg (3) first slide bar (4) and first slide bar (4), the vertical slip of terminal surface central point position has connecting rod connecting block (6) under drawing board (1), be connected with connecting rod structure and this connecting rod structure between connecting rod connecting block (6) and landing leg (3) and satisfy: when the connecting rod connecting block (6) moves towards the direction far away from the drawing board, the plurality of support legs (3) can be unfolded simultaneously, and when the connecting rod connecting block (6) moves towards the direction close to the drawing board, the plurality of support legs (3) can be contracted simultaneously;

be located and install stroke adjusting device between vertical one side matched with landing leg connecting block (2) of drawing board (1) and landing leg (3), this stroke adjusting device satisfies: when the supporting leg (3) rotates around the supporting leg connecting block (2) matched with the supporting leg, the first sliding rod (4) can be driven to slide outwards for different distances in the supporting leg (3) through the stroke adjusting device;

the drawing board (1) is provided with a paper pressing mechanism.

2. The indoor-design multifunctional drawing board according to claim 1, wherein a vertically-extending round bar (32) is fixedly installed at the center of the lower end face of the drawing board (1), the connecting rod connecting blocks (6) are vertically slidably installed on the round bar (32), the connecting rod connecting blocks (6) are rotatably installed at intervals around the first connecting rods (7) corresponding to the supporting legs (3), the first connecting rods (7) are rotatably installed with the second connecting rods (8) and the other ends of the second connecting rods (8) are rotatably installed at the lower end face of the drawing board (1), and the supporting legs (3) are rotatably installed with the third connecting rods (9) and the other ends of the third connecting rods (9) and the first connecting rods (7) and the second connecting rods (8).

3. The indoor design multifunctional drawing board according to claim 1, wherein a first gear shaft (10) is fixed on the leg connecting block (2) and the leg (3) is rotatably mounted on the leg connecting block (2) through the first gear shaft (10), a sleeve (39) is axially slidably mounted on one end of the first gear shaft (10) extending out of the leg (3), the sleeve (39) is fixedly sleeved with a first gear (11) and a second gear (12) at intervals, the diameters of the first gear (11) and the second gear (12) are different, a second gear shaft (13) is rotatably mounted on the leg (3) and a third gear (14) and a fourth gear (15) are fixedly sleeved on one end of the second gear shaft (13) extending out of the leg (3), the third gear (14) is matched with the second gear (12) and the fourth gear (15) is matched with the first gear (11), when the sleeve (39) is moved: so that the first gear (11) meshes with the fourth gear (15) or the second gear (12) meshes with the third gear (14), the second gear shaft (13) being connected to the second sliding rod (5) by means of a transmission.

4. An indoor design multi-function drawing board according to claim 3, characterized in that the transmission means comprises a first bevel gear (16) rotating coaxially with the second gear shaft (13) and engaging with a second bevel gear (17) rotatably mounted on the leg (3), the second bevel gear (17) rotating coaxially with the second slide bar (5), the first slide bar (4) being screw-fittingly mounted with the leg (3).

5. The indoor-design multifunctional drawing board as claimed in claim 3, wherein the bearing block (18) is fixedly mounted on the sleeve (39), the limiting rod (20) is slidably mounted in the bearing block (18), a telescopic spring (40) is connected between the limiting rod (20) and the bearing block (18), a pulling-inserting support shaft (21) which is in sliding fit with the bearing block (18) is fixed on the leg connecting block (2), and limiting holes (41) which are matched with the limiting rod (20) are arranged on the pulling-inserting support shaft (21) at intervals.

6. The indoor-design multi-function drawing board as claimed in claim 1, wherein the paper pressing mechanism includes: drawing board (1) horizontal both sides are rotated and are installed first press board (22) of longitudinal extension and drawing board (1) vertical both sides are rotated and are installed second press board (23) of transverse extension, through bevel gear group link between adjacent first press board (22), second press board (23), one of them bevel gear group link has torsional spring (24) and torsional spring (24) other end to fix on drawing board (1).

7. The indoor design multifunctional drawing board according to claim 6, wherein a transition shaft (25) is rotatably installed on the drawing board (1), one end of a torsion spring (24) is fixed on the transition shaft (25), the transition shaft (25) is connected with a bevel gear set, one end of the transition shaft (25) far away from the torsion spring (24) is sleeved with an inherent ratchet wheel (26), a mounting block (27) is fixed on the side wall of the drawing board (1), a pawl (28) matched with the ratchet wheel (26) is slidably installed on the mounting block (27), and a return spring (42) is connected between the pawl (28) and the mounting block (27).

8. The indoor design multi-function drawing board as claimed in claim 1, wherein a universal foot (29) is fixed to the bottom of the leg.

9. An indoor design multi-function drawing board according to claim 1, wherein the drawing board (1) is mounted with a handle (30) on a side wall.

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