CN211533201U

CN211533201U - Portable folding easel

Info

Publication number: CN211533201U
Application number: CN202020170851.1U
Authority: CN
Inventors: 陆晓翰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2020-09-22
Anticipated expiration: 2030-02-14

Abstract

A portable folding easel is characterized in that a front side of a strip-shaped frame is provided with a front notch sliding chute along the length direction; the upper clamping plate and the lower clamping plate can rotate by rotating shafts to form a transverse or longitudinal state corresponding to the upper sliding fastener and the lower sliding fastener, and can move up and down relative to the front notch sliding groove corresponding to the upper sliding fastener and the lower sliding fastener; the upper sliding fastener and the lower sliding fastener correspondingly lock the relative positions of the upper clamping plate and the lower clamping plate and the strip-shaped frame, and the upper clamping plate and the lower clamping plate are wider than the width of the strip-shaped frame in a transverse state and oppositely form a clamping position; or the upper clamping plate and the lower clamping plate are folded in the longitudinal state until the length and width ranges of the strip-shaped frame are not exceeded; the bracket part can perform positioning lifting motion relative to the strip-shaped frame along the rear movable part and is folded to a position not exceeding the length and width range of the strip-shaped frame; the bracket part is used for fixing and supporting the picture board fixing part at an adjustable angle through the rear movable part. Its utensil easel supports, the stable performance of drawing board fixed knot institutional stability, has the drawing board size to carry out adaptability adjustment, folding small effect of being convenient for to accomodate simultaneously.

Description

Portable folding easel

Technical Field

The utility model relates to a drawing instrument field, concretely relates to portable folding easel.

Background

The easel is the indispensable instrument of drawing fan exercise drawing, and traditional easel of painting from life is wooden fixed structure mostly, and it is comparatively inconvenient to carry when painting from life to produce in the wind of appearing outward. Although portable picture frames are sold on the market at present, one type of the portable picture frames is a design of detachably combining a plurality of supports, and the portable picture frames have the advantages that the supports can be folded and placed in a cylindrical bag body and are convenient to carry, but the portable picture frames are inconvenient to combine when used; the other type is a folding easel, but most folding easels have limitations due to the folding structure design, and are difficult to achieve the effects of easel support, stable drawing board fixing structure, adaptable drawing board size adjustment and small folding volume; in addition, most portable easels mainly focus on portability, and the stand part is in a fixed shape, so that the easel is difficult to adjust according to different terrain environments, and is difficult to provide ergonomic adaptive adjustment of height and angle for users.

The utility model discloses a portable multi-purpose easel as disclosed in utility model patent ZL201720090333.7, this easel includes panel and support frame, and the support frame includes parallel arrangement and length-adjustable's first, second support, and first, second support all is connected with the panel through first slip subassembly and first rotary mechanism for the position of first support, second support for the panel can be adjusted, and first, second support can be in the face of perpendicular to panel activity, realizes the collapsibility. However, the volume of the easel with the structure is still large after being folded, and the easel is difficult to be placed in a small cylindrical bag; the fixed panel design results in the drawing board being unable to adjust; and the front and rear bottoms of the easel structure are in a cross frame shape, are not suitable for the placement of non-planar areas and are inconvenient to carry outside.

Still like the portable easel that utility model patent 201720472408.8 disclosed, the support body of this easel includes the same first, second branch of structure, and the body of rod of first, second branch is articulated mutually to be set up to and one set up in first branch and the articulated dorsal third branch that plays supporting role of department of second branch. A connecting rod is arranged between the upper half sections of the first supporting rod and the second supporting rod, a screw cylinder of the connecting rod is rotatably connected with a rotating seat, the rotating seat is hinged on the first supporting rod, and a fixing device used for fixing the drawing board is arranged on the rod bodies of the first supporting rod and the second supporting rod. This easel has branch less relatively, and portable advantage that weight is lighter, but it does not possess angle, height-adjustable effect and topography adaptability function to under the expansion state, the drawing board adopts the mode of erectting to lay, and the drawing board has certain possibility that breaks away from the easel, has the topography difference in height state in the easel place of laying down under, causes the drawing board lodging, the emergence of slip-off phenomenon more easily.

Disclosure of Invention

The utility model aims at providing a portable folding easel which has the stable performance of easel support and drawing board fixing structure, and has the effects of adaptive adjustment of the size of the drawing board, small folding volume and convenient storage; in addition, the improved scheme also has the advantages of being capable of adjusting according to different terrain environments and providing the ergonomic adaptive adjustment effect of height and angle.

In order to achieve the above purpose, the utility model adopts the following technical means to implement:

the utility model provides a portable folding easel, includes drawing board fixed part and support portion, its characterized in that: the drawing board fixing part comprises a strip-shaped frame, an upper clamping plate and a lower clamping plate, and a front notch sliding groove is formed in the front side of the strip-shaped frame along the length direction;

the upper clamping plate and the lower clamping plate can rotate to form a transverse or longitudinal state for the rotating shaft corresponding to the upper sliding fastener and the lower sliding fastener, and can conduct lifting movement relative to the front notch sliding groove corresponding to the upper sliding fastener and the lower sliding fastener; the upper sliding fastener and the lower sliding fastener correspondingly lock the relative positions of the upper clamping plate and the lower clamping plate and the strip-shaped frame, the upper clamping plate and the lower clamping plate are wider than the width of the strip-shaped frame in a transverse state, and a clamping position is formed between the upper clamping plate and the lower clamping plate in an opposite direction; or the upper clamping plate and the lower clamping plate are folded in the longitudinal state until the length and width ranges of the strip-shaped frame are not exceeded;

the bracket part can perform lifting motion capable of being positioned relative to the strip-shaped frame along the rear movable part, and the bracket part is folded to a position not exceeding the length and width ranges of the strip-shaped frame; the bracket part is used for fixing and supporting the picture board fixing part at an adjustable angle through the rear movable part.

Furthermore, the upper sliding fastener comprises an upper sliding block arranged in the front notch sliding groove and an upper rotating bolt which is hinged with the upper clamping plate and is screwed relative to the upper sliding block; the lower sliding fastener comprises a lower sliding block arranged in the front notch sliding groove and a lower rotating bolt which is hinged with the lower clamping plate and is screwed relative to the lower sliding block; when the upper and lower bolts are screwed along the upper and lower sliding blocks, the upper and lower clamping plates are clamped and fixed by the upper and lower bolts and the front panel of the strip frame.

Furthermore, the upper clamping plate consists of an upper base plate and an upper pressing plate, and the upper base plate is hinged with the upper rotating bolt; the lower clamping plate consists of a lower base plate and a lower pressing plate, and the lower base plate is hinged with the lower rotary bolt; the upper pressing plate and the lower pressing plate oppositely form the clamping position.

Furthermore, when the clamping position is formed between the upper pressing plate and the lower pressing plate in opposite directions, an acute angle is formed between the opposite sides of the upper pressing plate and the lower pressing plate and the strip-shaped frame.

Furthermore, the upper clamping plate and the lower clamping plate are both provided with limiting blocks, and the limiting blocks are sunk into the front notch sliding grooves and correspondingly prevent the upper clamping plate and the lower clamping plate from rotating correspondingly along the upper sliding fastener and the lower sliding fastener under the transverse state and/or the longitudinal state.

Furthermore, the front sides of the left side and the right side of the strip-shaped frame are provided with a left strip-shaped side wing and a right strip-shaped side wing.

Furthermore, the rear movable part consists of an elevation angle adjusting joint, a supporting rod adjusting joint and a rear movable part sliding fastener;

the support rods correspondingly expand along the support rod adjusting joints relatively and the lower parts of the support rods can form a support surface, and the support rods are folded relatively and do not exceed the length and width ranges of the strip-shaped frame;

the rear side of the strip-shaped frame is provided with a rear notch sliding groove along the length direction, the rear movable part is guided by the rear movable part sliding fastener, performs lifting motion relative to the rear notch sliding groove, and locks the positions of the rear movable part and the strip-shaped frame through the rear movable part sliding fastener;

the elevation angle adjusting joint adjusts the relative elevation angle between the supporting rod adjusting joint and the rear movable part sliding fastener and locks the angle.

Furthermore, the rear movable part sliding fastener comprises a rear sliding block arranged in the rear notch sliding groove, a rear rotary bolt hinged with the rear guide block and screwed relative to the rear sliding block, and a rear guide block on the rear movable part, wherein when the rear rotary bolt is screwed along the rear guide block, the rear guide block is clamped and fixed by the rear rotary bolt and the front panel of the strip frame; the rear movable part is guided by the rear sliding block and/or the rear guide block and moves up and down relative to the rear notch sliding groove.

Furthermore, the elevation angle adjusting joint comprises a first rotating plate arranged on the supporting rod adjusting joint and a second rotating plate arranged on the rear movable part sliding fastener, the opposite surfaces of the first rotating plate and the second rotating plate are subjected to angle gear adjustment through a plurality of meshing gear positions, and the angle locking piece is used for fixing the first rotating plate and the second rotating plate mutually.

Furthermore, the bracing piece be the telescopic link, the telescopic link through locking the flexible range of festival locking telescopic link.

The utility model discloses have following useful part:

the portable folding easel can lead the upper clamping plate and the lower clamping plate to rotate relative to the upper sliding fastener and the lower sliding fastener by adjusting the tightness of the upper sliding fastener and the lower sliding fastener, and carry out height adjustment along the front notch sliding groove of the strip-shaped easel, the clamping position formed in a transverse state by locking can be adaptively adjusted according to different heights of the drawing boards, and the clamping effect is stable; the rear movable part of the bracket part is used for lifting and adjusting the angle of the fixed part of the drawing board, so that the height and the angle can be adjusted according to the requirement of ergonomics; the telescopic link that preferred adoption has the locking festival is as the bracing piece, can rationally adjust the height and the locking height of telescopic link according to topography difference in height, can bring high self-adaptation's regulation effect for the easel.

Through making upper and lower splint for upper and lower slip fastener rotation and locking to vertical state, adjust the telescopic link of accomodating the support portion simultaneously to adjust back movable part, can make this portable drawing board fold and form the structure that can arrange the tube-shape bag in, and carry, the deformation process is convenient, and need not to dismantle the combination action.

Drawings

Fig. 1 is a schematic view of the present invention in an expanded state;

fig. 2 is a schematic front side view of the utility model in a furled state;

fig. 3 is a schematic rear view of the utility model in a furled state;

FIG. 4 is an enlarged view of the area of FIG. 3A;

fig. 5 is a schematic cross-sectional view of fig. 2B-B according to the present invention.

Detailed Description

The invention is further illustrated by the following specific examples.

Examples

As shown in fig. 1-5, a portable folding easel comprises a drawing board fixing part and a support part, and is characterized in that: the drawing board fixing part comprises a strip-shaped frame 20, an upper clamping plate and a lower clamping plate (11,12), a front notch sliding groove 201 and a rear notch sliding groove 202 are arranged on the front side of the strip-shaped frame 20 along the length direction, and sealing sheets 204 for sealing and fixing the inlet and the outlet of the front notch sliding groove (201) and the rear notch sliding groove (202) are correspondingly arranged at the upper end and the lower end of the strip-shaped frame 20;

the upper clamping plate 11 rotates by the upper sliding fastener 13 as a rotating shaft to form a transverse or longitudinal state, and the upper sliding fastener 13 is guided to move up and down relative to the front notch sliding groove 201; the lower sliding fastener 14 below the lower clamping plate 12 rotates as a rotating shaft to form a transverse or longitudinal state, and the lower sliding fastener 14 is guided to move up and down relative to the front notch sliding groove 201; when the drawing board is adjusted to the target position, the upper and lower sliding fasteners (13,14) can be adjusted to correspondingly lock the relative positions of the upper and lower clamping plates (11,12) and the strip-shaped frame 20, so that the upper and lower clamping plates (11,12) are wider than the width of the strip-shaped frame 20 in the transverse state as shown in fig. 1, and a clamping position capable of clamping the drawing board is oppositely formed between the upper and lower clamping plates (11, 12); or the upper and lower splints (11,12) are folded to a state not exceeding the length and width range of the strip-shaped frame 20 under the longitudinal state as shown in figure 2;

in the present embodiment, the upper sliding fastener 13 includes an upper sliding block 132 disposed in the front recess sliding slot 201, an upper rotating bolt 131 hinged to the upper clamping plate 11 and screwed to the upper sliding block 132; the downward sliding fastener 14 comprises a lower sliding block arranged in the front notch sliding groove 201 and a lower rotary bolt 141 which is hinged with the lower clamping plate 12 and is screwed relative to the lower sliding block; when the upper and lower bolts (131,141) are screwed along the upper and lower sliders, the upper and lower clamping plates (11,12) are clamped and fixed by the upper and lower bolts (131,141) and the front panel of the bar frame 20. As shown in fig. 1,2 and 5, the structure of the sliding fastener 13 is exemplified by that, the upper sliding block 132 is used as a guide, the upper rotating bolt 131 drives the upper clamping plate 11 to move up and down along the front concave sliding groove 201, and the upper clamping plate 11 can rotate along the upper rotating bolt 131 to adjust the transverse or longitudinal state, when the upper sliding block moves to the target position, the upper rotating bolt 131 can be screwed, so that the upper sliding block 132 and the bar frame 20 clamp the upper clamping plate 11 and form a transverse or longitudinal locking state.

Preferably, the upper and lower clamping plates (11,12) are provided with the limiting blocks (113,123), as shown in fig. 1,2 and 5, under the transverse or longitudinal state of the upper and lower clamping plates (11,12) by the limiting action of the limiting blocks (113,123), the limiting blocks (113,123) are sunk into the front concave sliding groove 201 and correspondingly prevent the upper and lower clamping plates (11,12) from rotating along the upper and lower sliding fasteners (13,14), so that the upper and lower clamping plates (11,12) can be rotated to the transverse or longitudinal state along the upper and lower bolts (131,141), and when the upper and lower bolts (131,141) are not completely locked, the upper and lower clamping plates (11,12) can be prevented from deflecting relatively.

The bracket part can perform the positioning lifting motion relative to the strip-shaped frame 20 along the rear movable part 44, and the bracket part is folded to be within the length and width range of the strip-shaped frame 20; the bracket part is used for fixing and supporting the drawing board fixing part at an adjustable angle through the rear movable part 44, and the portable drawing board can be folded to form a structure capable of being placed in the cylindrical bag body through the arrangement scheme. Specifically, in the present embodiment, the bracket portion is configured by the following arrangement:

the rear movable part 44 is composed of an elevation angle adjusting joint 41, a supporting rod adjusting joint 42 and a rear movable part sliding fastener 40;

as shown in fig. 1, the three support rods 321 are arranged in left, right and rear directions, and the top of each support rod 321 is hinged to the support rod adjusting joint 42, so that each support rod 321 can be unfolded relative to the support rod adjusting joint 42 along each hinge portion, and is blocked by the blocking portion of the support rod adjusting joint 42, so that the bottom of each support rod 321 can form a horizontal support surface; as shown in fig. 3, in the folded state, each of the support rods 321 is folded along each of the hinge portions, so that each of the support rods 321 does not exceed the length and width of the bar frame 20;

a rear notch sliding groove 202 is formed in the rear side of the strip-shaped frame 20 along the length direction, the rear movable portion 44 is guided by the rear movable portion sliding fastener 40, performs lifting movement relative to the rear notch sliding groove 202, and locks the positions of the rear movable portion 44 and the strip-shaped frame 20 through the rear movable portion sliding fastener 40; specifically, the rear movable portion sliding fastener 40 includes a rear sliding block 402 disposed in the rear recessed sliding groove 202, a rear rotating bolt 401 hinged to the rear guide block 403 and rotating relative to the rear sliding block 402, and a rear guide block 403 on the rear movable portion 44, when the rear rotating bolt 401 is screwed along the rear guide block 403, the rear guide block 403 is clamped and fixed by the rear rotating bolt 401 and the front panel of the strip frame 20, the rear movable portion 44 guides the inner wall of the rear recessed sliding groove 202 by the rear sliding block 402, and guides the outer wall of the rear recessed sliding groove 202 by the two side walls of the rear guide block 403, so as to form a structure with a large guide surface and a stable structure, so that when the support portion performs lifting movement relative to the rear recessed sliding groove 202, a user can adjust the support portion in the process of reducing the possibility of structural damage during lifting;

the elevation angle adjusting joint 41 adjusts the relative elevation angle between the supporting rod adjusting joint 42 and the rear movable part sliding fastener 40 and locks the angle; specifically, as shown in fig. 3, 4 and 5, the elevation angle adjusting joint 41 includes a first rotating plate 412 disposed on the supporting rod adjusting joint 42 and a second rotating plate 413 disposed on the rear movable portion sliding fastener 40, the opposite surfaces of the first and second rotating plates (412,413) are adjusted in angle position by a plurality of engaging tooth positions 414, the first and second rotating plates (412,413) can be swung along the angle locking bolt 411 by loosening the angle locking bolt 411, and the first and second rotating plates (412,413) are fixed to each other by locking the angle locking bolt 411 after adjusting the angle position according to the engaging tooth position 414, thereby completing the adjustment of the elevation angle of the drawing board fixing portion.

The bracket part not only has the advantages of convenient opening and closing, small occupied space in a furled state, and easy storage and turnover effects, but also can be placed into the cylindrical bag, and can be adjusted in height and elevation angle according to different heights required by users and different operation habits, thereby realizing the form adjustment suitable for ergonomics.

Further, in the present embodiment, the upper clamp plate 11 is composed of an upper base plate 111 and an upper clamp plate 112, the upper base plate 111 is hinged with an upper rotating bolt 131; the lower clamp 12 is composed of a lower base plate 121 and a lower pressing plate 122, the lower base plate 121 is hinged with a lower rotary bolt 141; the upper pressing plate 112 and the lower pressing plate 122 oppositely form a clamping position capable of clamping the drawing board, and through the arrangement, the upper and lower rotary bolts (131,141) and the upper and lower clamping plates (11,12) are reasonably arranged, and no structural obstruction is generated when the transverse and longitudinal states are switched; furthermore, when the upper pressing plate 112 and the lower pressing plate 122 are opposite to each other to form a clamping position, the opposite sides of the upper pressing plate 112 and the upper substrate 111, the lower pressing plate 122 and the lower substrate 121 are acute angles, so that the opposite sides of the upper pressing plate 112 and the lower pressing plate 122 and the strip-shaped frame 20 are also acute angles, when the drawing board is placed in the clamping position, the drawing boards with different thicknesses can be clamped by the parts formed by the acute-angled upper pressing plate 112 and the upper substrate 111, the lower pressing plate 122 and the lower substrate 121, of course, if only the clamping position formed among the upper pressing plate 112, the lower pressing plate 122 and the strip-shaped frame 20 is adopted to clamp the drawing board, the stable clamping effect can be achieved for the drawing boards with different thicknesses.

Further, left and right strip-shaped side wings 203 can be arranged on the front sides of the left and right sides of the strip-shaped frame 20, and through the arrangement, the deviation prevention performance of the drawing board at the clamping position can be further improved through the left and right strip-shaped side wings 203.

Further, the bracing piece 321 is the telescopic link, the telescopic link locks the flexible range of telescopic link through locking festival 322, in this embodiment, two-stage locking festival 322 all adopts loose piece pressure padlock as locking part, carry out altitude mixture control when needs, or carry out the altitude mixture control of telescopic link according to the difference in height of topography, after adjusting to the target height, the accessible carries out the lock with the movable preforming of loose piece pressure padlock, thereby the extension range of locking telescopic link, and can be after finishing using, remove the lock of movable preforming to loose piece pressure padlock, draw in the telescopic link and lock movable preforming again, this process is simple and fast, can effectively make the folding of easel accomodate the convenience.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a portable folding easel, includes drawing board fixed part and support portion, its characterized in that: the drawing board fixing part comprises a strip-shaped frame, an upper clamping plate and a lower clamping plate, and a front notch sliding groove is formed in the front side of the strip-shaped frame along the length direction;

2. The portable folding easel according to claim 1, wherein: the upper sliding fastener comprises an upper sliding block arranged in the front notch sliding groove and an upper rotating bolt hinged with the upper clamping plate and screwed relative to the upper sliding block; the lower sliding fastener comprises a lower sliding block arranged in the front notch sliding groove and a lower rotating bolt which is hinged with the lower clamping plate and is screwed relative to the lower sliding block; when the upper and lower bolts are screwed along the upper and lower sliding blocks, the upper and lower clamping plates are clamped and fixed by the upper and lower bolts and the front panel of the strip frame.

3. The portable folding easel according to claim 2, wherein: the upper clamping plate consists of an upper base plate and an upper pressing plate, and the upper base plate is hinged with the upper rotating bolt; the lower clamping plate consists of a lower base plate and a lower pressing plate, and the lower base plate is hinged with the lower rotary bolt; the upper pressing plate and the lower pressing plate oppositely form the clamping position.

4. A portable folding easel, according to claim 3, wherein: when the clamping position is formed between the upper pressing plate and the lower pressing plate in opposite directions, an acute angle is formed between the opposite sides of the upper pressing plate and the lower pressing plate and the strip-shaped frame.

5. The portable folding easel according to claim 1, wherein: the upper clamping plate and the lower clamping plate are both provided with limiting blocks, and the limiting blocks are sunk into the front notch sliding grooves and correspondingly prevent the upper clamping plate and the lower clamping plate from rotating correspondingly along the upper sliding fastener and the lower sliding fastener under the transverse state and/or the longitudinal state.

6. The portable folding easel according to any one of claims 1-5, wherein: the front sides of the left side and the right side of the strip-shaped frame are provided with a left strip-shaped lateral wing and a right strip-shaped lateral wing.

7. The portable folding easel according to any one of claims 1-5, wherein:

the rear movable part consists of an elevation angle adjusting joint, a supporting rod adjusting joint and a rear movable part sliding fastener;

the supporting rods correspondingly expand along the adjusting joints of the supporting rods relatively, the lower parts of the supporting rods can form a supporting surface, and the supporting rods are folded relatively and do not exceed the length and width ranges of the strip-shaped frame;

8. The portable folding easel according to claim 7, wherein: the rear movable part sliding fastener comprises a rear sliding block arranged in the rear notch sliding groove, a rear rotating bolt hinged with the rear guide block and screwed relative to the rear sliding block, and a rear guide block on the rear movable part, wherein when the rear rotating bolt is screwed along the rear guide block, the rear guide block is clamped and fixed by the rear rotating bolt and the front panel of the strip frame; the rear movable part is guided by the rear sliding block and/or the rear guide block and moves up and down relative to the rear notch sliding groove.

9. The portable folding easel according to claim 7, wherein: the elevation angle adjusting joint comprises a first rotating plate arranged on the supporting rod adjusting joint and a second rotating plate arranged on the rear movable part sliding fastener, the opposite surfaces of the first rotating plate and the second rotating plate are subjected to angle gear adjustment through a plurality of meshing gear positions, and the angle locking piece is used for fixing the first rotating plate and the second rotating plate mutually.

10. The portable folding easel according to claim 7, wherein: the supporting rod is a telescopic rod, and the telescopic rod locks the telescopic range of the telescopic rod through a locking joint.