CN203888531U - Double-faced folding easel - Google Patents

Abstract

The utility model relates to a double-sided folding easel. Its technical solution is: the easel is composed of the same front bracket (1) and rear bracket (14); the front bracket (1) is composed of the front lower folding rod (2), the front upper folding rod (6) and two identical The front support rods (5) are composed of two front support rods (5) which are symmetrically opened with drawing board front adjustment holes (4), and the inner sides of the two front support rods (5) are provided with front lower folding grooves (3) and front The upper folding groove (7); the two ends of the front lower folding rod (2) and the front upper folding rod (6) are hinged on the front lower folding groove (3) and the front upper folding groove ( 7) end; the upper ends of the two front support rods (5) of the front support (1) and the upper ends of the two rear support rods (11) of the rear support (14) pass through the respective support rod hinges (9) Correspondingly hinged, the bottom of two front support bars (5) of front support (1) and the bottom of two rear support bars (11) of rear support (14) are correspondingly connected by respective wire ropes (12). The utility model has the characteristics of stable placement, space saving and strong applicability.

Description

A double-sided folding easel

technical field

The utility model belongs to the technical field of folding easels. Specifically relates to a double-sided folding easel.

Background technique

Easel, as a painting tool integrating adjustable support angle and placing drawing board, is one of the main tools in the studio.

Easel is a common painting tool in painting art classrooms. Existing easels can generally be divided into two types: wooden and metal according to their materials, and can be divided into portable and home-based according to their uses. Wooden easels are usually connected by two sets of brackets through round wooden wedges, and the front and rear can move freely. It is characterized by large volume, complex structure and high price, and is more suitable for private or professional studios.

At present, the most popular aluminum alloy easel is designed for the convenience of outdoor painting. Although the aluminum alloy easel is simple and light, its stability, firmness and auxiliary functions are relatively poor. With the rise of art examinations, the general basic painting classrooms are currently using simplified triangular support easels improved from old-fashioned easels, which are not stable enough and not conducive to saving space, and are not satisfactory in terms of practicability and humanized design.

Contents of the invention

The utility model aims to overcome the defects of the existing technology, and aims to provide a double-sided folding easel with stable structure, convenient folding and wide application range.

In order to achieve the above object, the technical solution adopted by the present invention is: the easel includes a front bracket and a rear bracket. The front support is composed of a front lower folding rod, a front upper folding rod and two front support rods; the shape and structure of the two front support rods are the same, and the two front support rods are symmetrically opened with drawing board front adjustment holes, and the drawing board front adjustment holes are There are 2 to 4 pieces, and the inner sides of the lower and upper parts of the two front support rods are correspondingly provided with front lower folding grooves and front upper folding grooves. The shape and structure of the front lower folding rod and the front upper folding rod are the same. The front of the rod folds over the end of the slot.

The structure of the rear support and the front support is identical: the rear support is also made up of the rear lower folding rod, the rear upper folding rod and two rear support rods. The shapes and structures of the rear lower folding rod, the rear upper folding rod, and the two rear support rods are correspondingly the same as those of the front lower folding rod, the front upper folding rod, and the two front supporting rods.

The upper ends of the two front support rods of the front support and the upper ends of the two rear support rods of the rear support are hinged correspondingly through the respective support rods with hinges, and the lower parts of the two front support rods of the front support and the two rear supports of the rear support The lower parts of the rods are correspondingly connected by respective wire ropes.

The shape and structure of the front lower folding rod and the front upper folding rod are the same as that of the rear lower folding rod and the rear upper folding rod, and the cross-section is rectangular or square. The pages are hinged to be folded.

The shape of the front lower folding groove and the front upper folding groove is the same, the nominal size of the groove depth and groove width is equal to the section size of the front lower folding rod or the front upper folding rod, and the nominal size of the groove length is the front lower folding rod or the front upper folding rod. Half the length of the front upper folding rod.

Owing to adopting above-mentioned technical scheme, the utility model has following positive effect compared with existing technology:

The structure of the front support and the rear support of the utility model is exactly the same, so as to achieve the function of placing and fixing the drawing board on the reverse side, and has strong applicability. The upper ends of the two front support rods of the front support and the upper ends of the two rear support rods of the rear support are hinged correspondingly through the respective support rods with hinges, and the lower parts of the two front support rods of the front support and the two rear supports of the rear support The lower parts of the rods are correspondingly connected by respective wire ropes. The setting of different lengths of cords can realize the functions of fixing a specific angle and stable placement, making the placement of the easel more stable.

Because the two ends of front lower folding bar are hinged on the end of the front lower folding groove of two front support bars, the two ends of front upper folding bar are hinged on the end of the front upper folding groove of two front support bars. When the two front support rods shrink, the front lower folding rods can be folded and placed in the respective corresponding front lower folding grooves, and the front upper folding rods can be folded and placed in the respective corresponding front upper folding grooves. In the same way, the shrinkage of the two rear support rods can be realized. After the easel is shrunk, it has four support rods, which saves a lot of space. When in use, the position of the drawing board can be adjusted up and down through the different positions of the adjustment holes in front of the drawing board. Both the front and back sides of the easel can realize the function of placing the drawing board, which has strong applicability and a wide range of applications.

Therefore, the utility model has the characteristics of stable placement, space saving and strong applicability, and is especially suitable for training classrooms with a large number of people.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model;

Fig. 2 is a schematic diagram of a fully folded state of Fig. 1;

Fig. 3 is a schematic diagram of a half-folded state of Fig. 1 .

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, which is not intended to limit its protection scope.

Example 1

A double-sided folding easel. The easel shown in FIG. 1 includes a front support 1 and a rear support 14 . The front support 1 is composed of the front lower folding rod 2, the front upper folding rod 6 and two front support rods 5; the shape and structure of the two front support rods 5 are the same, and the two front support rods 5 are symmetrically opened with drawing board front adjustment holes 4. There are two adjustment holes 4 in front of the drawing board, and the inner sides of the lower and upper parts of the two front support rods 5 are correspondingly provided with the front lower folding groove 3 and the front upper folding groove 7. The shape and structure of the front lower folding rod 2 and the front upper folding rod 6 are the same. Hinged at the end of the front upper folding groove 7 of two front support rods 5.

As shown in Figure 1, the structure of the rear bracket 14 and the front bracket 1 is the same: the rear bracket 14 is also composed of the rear lower folding rod 13, the rear upper folding rod 10 and two rear bracket rods 11. The shape and structure of the rear lower folding rod 13, the rear upper folding rod 10, and two rear support rods 11 are correspondingly identical with the shape and structure of the front lower folding rod 2, the front upper folding rod 6, and two front support rods 5.

As shown in Figure 1, the upper ends of the two front support rods 5 of the front support 1 and the upper ends of the two rear support rods 11 of the rear support 14 are hinged with hinges 9 correspondingly by respective support rods, and the two front support rods of the front support 1 are hinged correspondingly. The bottom of the support rod 5 and the bottom of the two rear support rods 11 of the rear support 14 are correspondingly connected by respective wire ropes 12 .

As shown in Figure 1, the shape and structure of the front lower folding rod 2 and the front upper folding rod 6 described in this embodiment are the same as the shape and structure of the rear lower folding rod 13 and the rear upper folding rod 10, and the cross section is rectangular or square. Two equal-length rods are hinged to be folded with hinge 8 by respective folding rods.

As shown in Figure 1, the front lower folding groove 3 and the front upper folding groove 7 have the same shape, and the nominal dimensions of the groove depth and groove width are correspondingly equal to the cross-sectional dimensions of the front lower folding rod 2 or the front upper folding rod 6. The long nominal dimension is half of the front lower folding bar 2 or the front upper folding bar 6 lengths.

Example 2

A double-sided folding easel. Except following technical parameter, all the other are with embodiment 1:

There are 3 or 4 adjustment holes 4 before the drawing board.

Compared with the existing technology, this specific embodiment has the following positive effects:

The structure of the front bracket 1 and the rear bracket 14 of this specific embodiment is exactly the same, so as to achieve the function of placing and fixing the drawing board on the reverse side, and has strong applicability. The upper ends of two front support rods 5 of front support 1 and the upper ends of two rear support rods 11 of rear support 14 are correspondingly hinged with hinge 9 by respective support rods, the bottom of two front support rods 5 of front support 1 and The bottoms of the two rear support rods 11 of the rear support 14 are correspondingly connected by respective wire ropes 12 . The setting of the cords 12 of different lengths can realize the functions of fixing a specific angle and stable placement, so that the placement of the easel is more stable.

Because the two ends of the front lower folding rod 2 are hinged on the ends of the front lower folding grooves 3 of the two front bracket rods 5, the two ends of the front upper folding rod 6 are hinged on the front upper folding grooves 7 of the two front bracket rods 5. Ends. Two front support rods 5 can be placed in respective corresponding front lower folding grooves 3 after folding the front lower folding rods 2 when shrinking, and place respectively corresponding front upper folding grooves 7 li after folding the front upper folding rods 6 . Similarly, the contraction of the two rear support rods 11 can be realized. When the easel is shrunk, as shown in Figure 2 and Figure 3, there are four support rods, which saves a lot of space. During use, the position where the drawing board is placed can be adjusted up and down through the different positions of the adjustment holes 4 in front of the drawing board. Both the front and back sides of the easel can realize the function of placing the drawing board, which has strong applicability and a wide range of applications.

Therefore, this embodiment has the characteristics of stable placement, space saving and strong applicability, especially suitable for training classrooms with a large number of people.

Claims (3)

1. a Double-sided foldable easel, is characterized in that described easel comprises fore-stock (1) and after-poppet (14); Fore-stock (1) is made up of front lower folding rod (2), front upper folding rod (6) and two fore-stock bars (5), the shape and structure of two fore-stock bars (5) is identical, on two fore-stock bars (5), have symmetrically the front adjustment hole (4) of drawing board, adjustment hole (4) is 2 ~ 4 before drawing board, and the inner side on two fore-stock bar (5) bottoms and top is provided with front lower folded slot (3) and front upper folded slot (7) accordingly; Front lower folding rod (2) is identical with the shape and structure of front upper folding rod (6), the two ends of front lower folding rod (2) are hinged on the end of the front lower folded slot (3) of two fore-stock bars (5), and the two ends of front upper folding rod (6) are hinged on the end of the front upper folded slot (7) of two fore-stock bars (5);

After-poppet (14) is identical with the structure of fore-stock (1): after-poppet (14) is also made up of rear lower folding rod (13), rear upper folding rod (10) and two rear rack poles (11); The shape and structure of rear lower folding rod (13), rear upper folding rod (10), two rear rack poles (11) is corresponding identical with the shape and structure of front lower folding rod (2), front upper folding rod (6), two fore-stock bars (5);

The upper end of the upper end of two fore-stock bars (5) of fore-stock (1) and two rear rack poles (11) of after-poppet (14) is corresponding hinged by hinge for cradling piece (9) separately, and the bottom of the bottom of two fore-stock bars (5) of fore-stock (1) and two rear rack poles (11) of after-poppet (14) is by corresponding connection of cotton rope (12) separately.

2. Double-sided foldable easel according to claim 1, the shape and structure that it is characterized in that described front lower folding rod (2) and front upper folding rod (6) is identical with the shape and structure of rear lower folding rod (13) and rear upper folding rod (10), cross section is rectangle or square, and waiting folding rod for the hinge (8) of long poles by separately hinged by two is rugosity.

3. Double-sided foldable easel according to claim 1, it is characterized in that described front lower folded slot (3) is identical with front upper folded slot (7) shape, the sectional dimension correspondent equal of the nominal size of groove depth and groove width and front lower folding rod (2) or front upper folding rod (6), the nominal size of flute length is the half of front lower folding rod (2) or front upper folding rod (6) length.