CN205866382U - Three -legged support drawing board - Google Patents

Abstract

The utility model discloses a three -legged support drawing board, aim at providing a reduce cost, use convenient three -legged support drawing board, it is complicated relatively to have solved the structure, the problem of other process need be increased to the assembly of adapter sleeve, its technical scheme main points are including the drawing board, fixed drawing board dorsal branch frame foundation, 3 individual stabilizer blade group of installing on a frame foundation, stabilizer blade group includes mobile jib and the vice pole of wearing to locate the mobile jib, the internal diameter of mobile jib evenly diminishes from upper shed to under shed, the external diameter of vice pole evenly diminishes from upper shed to under shed, mobile jib and the vice mutual eccentric settings of pole, the effect of being convenient for to manipulate has been reached.

Description

Three-legged support drawing board

Technical field

This utility model relates to drawing board, particularly to three-legged support drawing board.

Background technology

The Main Function of three-legged support drawing board is to provide artistic creation for artist or student, and student can use three feet to prop up Frame drawing board can be painted more easily, and during use, drawing board is fixed on three-legged support, and drawing board is protected with three-legged support Keep steady fixed, the height of the height student to be suitable for of drawing board；For the student of all ages and classes, the height of its health is inconsistent, therefore Need one be easy to regulate height of drawing board structure so that student use, but in existing product, relatively conventional structure It is, by the adapter sleeve separately added of three-legged support, three-legged support is carried out telescopic adjustment, for the user, rotates the tightest Gu set, operation inconvenience；For producing, its structure is relative complex, and the assembling for adapter sleeve needs to increase other operation, Improve man power and material's cost, for above contradiction, have new infrastructure product yet-to-be developed.

Utility model content

The deficiency existed for prior art, the purpose of this utility model is to provide reduction cost, three feet easy to use Support drawing board.

Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of three-legged support is drawn Plate, including drawing board, fixing drawing board dorsal branch stand, 3 leg groups being installed on carrier base, described leg group include mobile jib and Being arranged in the secondary bar of mobile jib, the internal diameter of described mobile jib uniformly diminishes under shed from upper shed, and the external diameter of described secondary bar is opened from above Mouth under shed uniformly diminishes, described mobile jib and the secondary mutual eccentric setting of bar.

By such scheme, drawing board is fixed on carrier base, and carrier base is fixed in leg group, and three leg groups play props up The effect of support, the structure of leg group is made up of mobile jib and secondary bar simultaneously, thus saves the use of adapter sleeve, and, equally may be used To realize the length change of leg group, its main operational principle is: due to mobile jib internal diameter and the setting of secondary bar external diameter, and mobile jib Can be set on secondary bar, and will not be anti-loaded by direction during assembling, mobile jib and the eccentric setting of secondary bar, thus using During can pass through revolute bar, thus realize realizing outside mobile jib inwall and secondary bar the loosening and fastening, at mobile jib of clamping The regulation stretched up and down the when of loosening with secondary bar, passes through revolute bar afterwards to carry out the card between eccentric sidewall at this Connect；Easy for operation, production cost reduces, simple and compact for structure, it is easy to implement.

Can be preferably as concrete scheme of the present utility model: the outside of described mobile jib is provided with bar along its length Shape lines.

By such scheme, the setting of bar shaped lines improves the convenience of operation, revolute bar when, and Qi Zhongyi Hands is to grip mobile jib, thereby serves to increasing friction force, prevents the phenomenon skidded.

Can be preferably as concrete scheme of the present utility model: described carrier base is provided with hook, described hook is symmetrical It is arranged at the both sides of carrier base.

By such scheme, the position of hook is so that drawing board can carry other objects, it is simple to the placement of material, separately Outward, object hangs over when linking up with upper, due to the impact of gravity so that in the range of overall center of gravity is maintained at the triangle of three foot groups, Improve stability, it is to avoid rock.

Can be preferably as concrete scheme of the present utility model: on the under shed of secondary bar, be arranged with rubber sleeve.

By such scheme, owing to mobile jib and secondary bar are hollow, play so arranging rubber sleeve at the under shed of secondary bar Prevent the entrance of foreign body, it is also possible to play and prevent secondary bar from scraping floor.

Can be preferably as concrete scheme of the present utility model: the internal diameter of the under shed of described mobile jib is less than or equal to pair The external diameter in the centre position of bar.

By such scheme, the under shed of mobile jib limits the distance of stretch out and draw back of secondary bar, and the distance of stretch out and draw back of secondary bar is limited in The half of its length, therefore, during use, can be relatively stable after mobile jib and secondary bar clamping, flexible moving direction is also Relatively stable, thus ensure that the effective support to drawing board.

Can be preferably as concrete scheme of the present utility model: in 3 described leg groups, two are symmetrically fixed on support On seat and the other end of secondary bar is fixed on base, the 3rd leg group one end is rotatably connected with carrier base.

By such scheme, the setting of two leg groups and drawing board are in a plane, and the 3rd leg group can be carried out Rotate, open the left and right playing support, draw the occupancy that can reduce space in.

In sum, this utility model has the advantages that

1, it is easy to regulate the height of drawing board, easy to operate；

2, save material, reduce cost, it is simple to manufacture.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present embodiment one；

Fig. 2 is the structural representation of the leg group of the present embodiment one；

Fig. 3 is the side view of Fig. 1；

Fig. 4 is the A portion enlarged drawing of Fig. 2；

Fig. 5 is the sectional view in the A-A face of Fig. 3.

In figure 1, drawing board；2, carrier base；3, leg group；31, mobile jib；32, secondary bar；4, strip lines；5, hook；6, rubber Set；7, bolt.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

Embodiment 1: as shown in Figure 1, 2, a kind of three-legged support drawing board 1, including drawing board 1, fixing drawing board 1 dorsal branch stand 2, The leg group 3 that 3 are installed on carrier base 2, leg group 3 includes mobile jib 31 and is arranged in the secondary bar 32 of mobile jib 31.Such as Fig. 5 institute Showing, the internal diameter of mobile jib 31 uniformly diminishes under shed from upper shed, and the external diameter of secondary bar 32 uniformly diminishes under shed from upper shed, Mobile jib 31 and the secondary mutual eccentric setting of bar 32.The hollow tubular that mobile jib 31 is the most big up and small down with secondary bar 32, wherein on carrier base 2 Being provided with three installing holes fixed for mobile jib 31 upper end grafting, mode grafting is fixed as shown in Figure 3, and the outside of mobile jib 31 is provided with edge The strip lines 4 of its length direction.Carrier base 2 is provided with hook 5, and hook 5 is symmetricly set in the both sides of carrier base 2.Such as Fig. 4 institute Showing, the opening direction of hook 5 sets up, can be with objects such as dossal bags.In 3 leg groups 3, two are symmetrically fixed on carrier base 2 Going up and the other end of secondary bar 32 is fixed on base, the 3rd leg group 3 one end is rotatably connected with carrier base 2.Leg group 3 is passed through Bolt 7 is realized hinged by bolt 7 while being fixed as jointed shaft.

As it is shown on figure 3, be arranged with rubber sleeve 6 on the under shed of secondary bar 32.The opening of secondary bar 32 is sealed by rubber sleeve 6.

As it is shown in figure 5, the internal diameter of the under shed of mobile jib 31 is less than or equal to the external diameter in the centre position of secondary bar 32.

Embodiment 2: the opening inside diameter size of mobile jib 31 can be configured into 1/3 position of the length being equal to secondary bar 32 On external diameter.And then 1/3 stroke of secondary bar 32 length of can only stretching in flexible length, the altitude range thus regulated can drop Low, but its structural strength and stability all significantly improve.

This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but As long as all being protected by Patent Law in right of the present utility model.

Claims (6)

1. a three-legged support drawing board (1), including drawing board (1), fixing drawing board (1) dorsal branch stand (2), three be installed on support Leg group (3) on seat (2), it is characterised in that: described leg group (3) includes mobile jib (31) and is arranged in the secondary bar of mobile jib (31) (32), the internal diameter of described mobile jib (31) uniformly diminishes under shed from upper shed, the external diameter of described secondary bar (32) from upper shed to Under shed uniformly diminishes, described mobile jib (31) and secondary bar (32) mutually eccentric setting.

Three-legged support drawing board (1) the most according to claim 1, it is characterised in that: the outside of described mobile jib (31) is provided with edge The strip lines (4) of its length direction.

Three-legged support drawing board (1) the most according to claim 1, it is characterised in that: described carrier base (2) is provided with hook (5), described hook (5) is symmetricly set in the both sides of carrier base (2).

Three-legged support drawing board (1) the most according to claim 1, it is characterised in that: it is arranged with on the under shed of secondary bar (32) Rubber sleeve (6).

Three-legged support drawing board (1) the most according to claim 1, it is characterised in that: the under shed of described mobile jib (31) interior Footpath is less than or equal to the external diameter in the centre position of secondary bar (32).

Three-legged support drawing board (1) the most according to claim 1, it is characterised in that: in three described leg groups (3) two right Title is fixed on carrier base (2) and the other end of secondary bar (32) is fixed on base, the 3rd leg group (3) one end and carrier base (2) it is rotatably connected.