Height-adjustable bamboo easel

Abstract

The invention discloses a height-adjustable bamboo easel. The height-adjustable bamboo easel comprises two front support legs, a rear support leg, an upper crosspiece, a lower crosspiece, a main shaft and a drawing board support; two ends of the upper crosspiece are fixedly connected to the upper parts of the two front support legs respectively; two ends of the lower crosspiece are fixedly connected to the lower parts of the two front support legs respectively; the lower end part of the main shaft is fixedly connected to the middle of the lower crosspiece; the rear support leg is hinged to the middle of the main shaft; the drawing board support is fixedly connected to the lower part of the main shaft; a lower guide long hole is formed in the lower part of the main shaft in the axial direction; the drawing board support is connected to the main shaft through a lower hand screwing bolt; the lower hand screwing bolt is inserted into the lower guide long holes of the drawing board support and the main shaft. The height-adjustable bamboo easel disclosed by the invention is convenient to operate while height is adjusted; furthermore, a sliding connection structure is simpler and convenient to install; simultaneously, a drawing board can be guaranteed to be fixed firmly; in addition, because the whole framework is made of bamboo, the height-adjustable bamboo easel disclosed by the invention is light in overall weight and convenient to transport and carry.

Description

technical field [0001] The invention relates to an easel, in particular to a height-adjustable bamboo easel. Background technique [0002] An easel is a shelf used to place a drawing board when painting, and its height usually needs to be adjusted for convenience. For example, the utility model patent of application number: 201420193303.5 discloses an easel, such as figure 1 As shown, it includes a front stand, a rear support leg (D1), and a drawing board holder (D2). The front stand includes two front support legs (D3) and at least one for connecting the two front support legs. The upper crosspiece (D4) of the leg (D3), the upper crosspiece (D4) and the front support leg (D3) are connected by screws, and the two front support legs (D3) are in the shape of "eight" Arrangement, a reinforced connecting rod (D5) is provided between the two front supporting legs (D3), and a vertical slide rail (D6) is provided on the reinforced connecting rod (D5), and the vertical The slide...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned easel in the prior art has the advantage that the slide rail is directly replaced by the middle pole, which is equivalent to canceling the process of manufacturing the vertical slide rail on the middle pole, thus reducing the cost of the easel and improving the convenience and life of use ; With anti-rotation card position and reinforced connecting rod structure, the overall strength is effectively improved; the outer limit bar can prevent the drawing board from slipping off and maintain the stability when painting; the disadvantage is that the main frame of the easel is made of metal, which makes Its overall weight is heavy, which is not easy to carry and carry. At the same time, the sliding connection structure between the slide rail and the drawing board support is relatively complicated, which is not easy to install. Moreover, when adjusting the height, the sliding seat is easy to get stuck on the middle pole, which is inconvenient to operate. , In addition, the upper part of the easel is not provided with a structure for clamping the drawing board, so that the drawing board is easy to fall from the easel under the action of external force such as wind

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