CN213565241U

CN213565241U - Foldable portable drawing board

Info

Publication number: CN213565241U
Application number: CN202021858739.3U
Authority: CN
Inventors: 欧文霞
Original assignee: Changzhou Vocational Institute of Engineering
Current assignee: Changzhou Vocational Institute of Engineering
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-06-29
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to a portable drawing board technical field specifically is a collapsible portable drawing board, including first bracing piece and drawing board body, first bracing piece is provided with two sets ofly altogether, and the upper end of two sets of first bracing pieces articulates there is the second bracing piece, and is two sets of the welding of one side that the second bracing piece is relative has movable groove, transversely seted up the through-hole on the second bracing piece, and transversely insert in the through-hole and be equipped with the rack, the meshing has the gear between the rack, the movable groove is provided with two sets of first springs, and first spring cup joints on the rack. The utility model discloses a set up splint, when using this device, the rotation handle of accessible rolling gear outer end makes inside rack opposite direction movement through rolling gear, places the drawing board body in splint, and splint play the centre gripping effect to the drawing board body, make the fixed mode of drawing board more firm, through setting up above structure, have promoted stability and agility when this device is fixed.

Description

Foldable portable drawing board

Technical Field

The utility model relates to a portable drawing board technical field specifically is a collapsible portable drawing board.

Background

The drawing board is a flat board which is often used for filling drawing paper during sketching and drawing, is often placed on an easel, also has a knee cap for drawing, is fixed on the easel, has clips and adhesive tapes, is mostly made of wood according to the requirements of users, has light and smooth hand feeling, is sold in art supplies stores, and can also be made by self.

At present, the foldable portable drawing board is used and is independent, but a support bought in use cannot necessarily adapt to the existing drawing board, and when the drawing board is taken out and is authored, the drawing board and an easel are troublesome to carry, the fixing mode of the existing drawing board on the easel is unstable, the drawing board can fall off from the easel due to mistaken touch, the drawing board can be damaged, and the foldable portable drawing board is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a collapsible portable drawing board to the portable not convenient to carry who proposes in solving above-mentioned background art, the unstable problem of fixed mode.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a collapsible portable drawing board, includes first bracing piece and drawing board body, first bracing piece is provided with two sets ofly altogether, and the upper end of two sets of first bracing pieces articulates there is the second bracing piece, and is two sets of the welding of one side that the second bracing piece is relative has a movable groove, transversely seted up the through-hole on the second bracing piece, and transversely insert in the through-hole and be equipped with the rack, the meshing has the gear between the rack, the activity inslot is provided with two sets of first springs, and first spring cup joints on the rack, the outer end welding of rack has splint, the welding has horizontal backup pad on the first bracing piece, and is provided with the drawing board body in the backup pad, first spacing groove has been seted up to one side that the first bracing piece is relative, and first spacing inslot interpolation is equipped with the stopper, the welding has.

Preferably, the inner end of the rack is welded with a fixing block, and the fixing block and the rack are L-shaped.

Preferably, a rubber pad is glued on one side opposite to the clamping plate, and anti-skid grains are arranged on the rubber pad.

Preferably, the left end of splint articulates through the fixed block has the tray, and the tray sets up to circular, the upper surface of tray is provided with the recess.

Preferably, a second limiting groove is transversely formed in one side, opposite to the lower end of the first supporting rod, of the lower end of the first supporting rod, a second spring is arranged in the second limiting groove, a clamping tongue is transversely inserted into an opening of the second limiting groove, the diameter of the clamping tongue is matched with the inner diameter of the opening of the second limiting groove, a telescopic sleeve is sleeved outside the lower end of the first supporting rod, the inner diameter of the telescopic sleeve is matched with the diameter of the lower end of the first supporting rod, embedding holes are formed in one side, opposite to the telescopic sleeve, of the telescopic sleeve in an equal distance from top to bottom, and the inner diameter of the embedding holes is consistent with the inner diameter of the opening of the second.

Preferably, the lower end of the telescopic sleeve is inclined, and the lower end of the lower telescopic sleeve is provided with teeth.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up the second bracing piece, when using this device, when the position when needs to move the drawing, can fold the device to make it more convenient to carry, and need not take off the drawing board body when moving, can save more time simultaneously, through setting up above-mentioned structure, the convenience when having promoted carrying of this device;

by arranging the clamping plate, when the device is used, the internal racks can move oppositely through the rotating handle at the outer end of the rotating gear and the rotating gear, the drawing board body is placed in the clamping plate, the clamping plate has a clamping effect on the drawing board body, the fixing mode of the drawing board is more stable, and the stability and the rapidness of the device in the fixing process are improved by arranging the structure;

through setting up flexible cover, when using this device, can adjust the height of easel, when the drawing of standing as needs, can inwards press the block tongue to upwards draw the rising in flexible cover with first bracing piece, when adjusting to suitable height, block tongue block to inlay the downthehole spacing to it, through setting up above structure, promoted the controllability of this device.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic sectional view of the right side of the structure of the present invention;

FIG. 3 is a schematic rear sectional view of the structure of the present invention;

fig. 4 is a partially enlarged schematic view of a in fig. 3 according to the present invention.

In the figure: 1. a first support bar; 2. a second support bar; 3. a movable groove; 4. a rack; 5. a gear; 6. a first spring; 7. a splint; 8. a drawing board body; 9. a tray; 10. a first limit groove; 11. a limiting block; 12. a third support bar; 13. a second limit groove; 14. a second spring; 15. a latch; 16. a telescopic sleeve; 17. and (5) embedding the hole.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a foldable portable drawing board comprises first supporting rods 1 and a drawing board body 8, wherein two groups of the first supporting rods 1 are arranged, the upper ends of the two groups of the first supporting rods 1 are hinged with second supporting rods 2, movable grooves 3 are welded on one opposite sides of the two groups of the second supporting rods 2, through holes are transversely formed in the second supporting rods 2, racks 4 are transversely inserted in the through holes, gears 5 are meshed between the racks 4, two groups of first springs 6 are arranged in the movable grooves 3, the first springs 6 are sleeved on the racks 4, clamping plates 7 are welded at the outer ends of the racks 4, transverse supporting plates are welded on the first supporting rods 1, the drawing board body 8 is arranged on the supporting plates, first limiting grooves 10 are formed in one opposite sides of the first supporting rods 1, limiting blocks 11 are inserted in the first limiting grooves 10, and third supporting rods 12 are welded on one opposite sides of the limiting blocks 11;

further, as shown in fig. 1, the inner end of the rack 4 is welded with a fixing block, and the fixing block and the rack 4 are L-shaped, so that the rack 4 is prevented from being separated from the gear 5 by the arrangement of the above structure.

Further, as shown in fig. 1, a rubber pad is glued on the opposite side of the clamping plate 7, and anti-slip lines are arranged on the rubber pad, so that the drawing board body 8 can be protected by the arrangement of the above structure.

Further, as shown in fig. 1, the left end of the clamping plate 7 is hinged with a tray 9 through a fixing block, the tray 9 is circular, a groove is formed in the upper surface of the tray 9, and the effect that the seasoning tray can be placed in the device is improved through the arrangement of the structure.

Further, as shown in fig. 4, a second limiting groove 13 is transversely formed in one side, opposite to the lower end, of the first supporting rod 1, a second spring 14 is arranged in the second limiting groove 13, a clamping tongue 15 is transversely inserted into an opening of the second limiting groove 13, the diameter of the clamping tongue 15 is matched with the inner diameter of the opening of the second limiting groove 13, a telescopic sleeve 16 is sleeved outside the lower end of the first supporting rod 1, the inner diameter of the telescopic sleeve 16 is matched with the diameter of the lower end of the first supporting rod 1, embedding holes 17 are equidistantly formed in one side, opposite to the telescopic sleeve 16, of the embedding holes 17, the inner diameter of the embedding holes 17 is consistent with the inner diameter of the opening of the second limiting groove 13, and by means of the arrangement, the height adjustment performance of the device is improved.

Furthermore, as shown in fig. 4, the lower end of the telescopic sleeve 16 is inclined, and the lower end of the lower telescopic sleeve 16 is provided with teeth, so that the stability of the easel is improved by the arrangement of the above structure.

The working principle is as follows: firstly, when the device is used, the first support rod 1 and the second support rod 2 are unfolded, after the first support rod 1 and the second support rod 2 are unfolded, the third support rod 12 and the first support rod 1 are unfolded, then the rotating handle at the outer end of the gear 5 is rotated by one hand, so that the gear 5 rotates in the movable groove 3, the gear 5 drives the meshed racks 4 to move oppositely in the movable groove 3 when rotating, when the racks 4 move outwards, the distance between the clamping plates 7 is increased, at the moment, the drawing board body 8 can be placed on the transverse support rod on the first support rod 1, after the drawing board body 8 is placed, the rotating handle is released, the first spring 6 pushes the racks 4 inwards in the movable groove 3, so that the two groups of clamping plates 7 clamp the drawing board body 8, and the rubber pad is glued on the opposite side of the clamping plates 7, so that the drawing board body 8 can be protected and skidproof, the palette body 8 is fixed, the tray 9 can be unfolded, the seasoning tray is placed on the tray 9, and the groove is formed in the upper surface of the tray 9, so that the supporting effect of the seasoning tray can be achieved, and the trouble of holding the seasoning tray in the hand is eliminated;

after drawing board body 8 is fixed, when outdoor drawing, perhaps need stand and draw, the accessible is to pressing down latch 15 inwards, latch 15 is flexible to second spacing inslot 13, can pull up first bracing piece 1 this moment, when reaching comfortable height, second spring 14 outwards offsets latch 15's the inner in second spacing inslot 13, it is spacing to it in making latch 15 block to the caulking hole 17, because of the lower extreme of expansion sleeve 16 sets up to the slope form, and the lower extreme is provided with tooth, the lower extreme of multiplicable expansion sleeve 16 and the frictional property on ground have promoted the stability of this device, above do the utility model discloses a whole theory of operation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a collapsible portable drawing board, includes first bracing piece (1) and drawing board body (8), its characterized in that: the drawing board comprises two groups of first supporting rods (1), wherein the upper ends of the two groups of first supporting rods (1) are hinged with second supporting rods (2), movable grooves (3) are welded on one opposite sides of the two groups of second supporting rods (2), through holes are transversely formed in the second supporting rods (2), racks (4) are transversely inserted in the through holes, gears (5) are meshed between the racks (4), two groups of first springs (6) are arranged in the movable grooves (3), the first springs (6) are sleeved on the racks (4), clamping plates (7) are welded at the outer ends of the racks (4), transverse supporting plates are welded on the first supporting rods (1), drawing board bodies (8) are arranged on the supporting plates, first limiting grooves (10) are formed in one opposite sides of the first supporting rods (1), and limiting blocks (11) are inserted in the first limiting grooves (10), and a third supporting rod (12) is welded on one side opposite to the limiting block (11).

2. The foldable portable drawing board of claim 1, wherein: the inner welding of rack (4) has the fixed block, and the fixed block is the L type with rack (4).

3. The foldable portable drawing board of claim 1, wherein: and a rubber pad is glued on one side opposite to the clamping plate (7), and anti-skid grains are arranged on the rubber pad.

4. The foldable portable drawing board of claim 1, wherein: the left end of splint (7) articulates through the fixed block has tray (9), and tray (9) set up to circular, the upper surface of tray (9) is provided with the recess.

5. The foldable portable drawing board of claim 1, wherein: second spacing groove (13) have transversely been seted up to the opposite one side of lower extreme of first bracing piece (1), and are provided with second spring (14) in second spacing groove (13), the opening part of second spacing groove (13) transversely is inserted and is equipped with block tongue (15), and the diameter of block tongue (15) and the opening part inside diameter looks adaptation of second spacing groove (13), flexible cover (16) have been cup jointed to the lower extreme outside of first bracing piece (1), and the internal diameter of flexible cover (16) and the diameter looks adaptation of first bracing piece (1) lower extreme, inlay hole (17) have been seted up to one side opposite from top to bottom equidistance in flexible cover (16), and the internal diameter of embedding hole (17) is unanimous with the opening part internal diameter of second spacing groove (13).

6. A foldable portable drawing board according to claim 5, wherein: the lower end of the telescopic sleeve (16) is inclined, and the lower end of the lower telescopic sleeve (16) is provided with teeth.