CN202439446U

CN202439446U - Blackboard-writing grid-drawing device for Chinese teaching

Info

Publication number: CN202439446U
Application number: CN2012200241061U
Authority: CN
Inventors: 李安居
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-11
Filing date: 2012-01-11
Publication date: 2012-09-19
Anticipated expiration: 2022-01-11

Abstract

The utility model discloses a blackboard-writing grid-drawing device for Chinese teaching, which comprises a horizontal rod and a vertical rod fixed under the horizontal rod, wherein a slide sleeve is sleeved on the vertical rod; a fastening bolt for fixing the slide sleeve is arranged between the slide sleeve and the vertical rod; a handle is arranged at the top of the slide sleeve; a plurality of equidistant chalk holes for containing chalks are arranged at the bottom of the slide sleeve from top to bottom; chalks are contained in the chalk holes; two idler wheels are arranged on the horizontal rod; and the tops of the idler wheels are protruded from the upper edge of the horizontal rod. The blackboard-writing grid-drawing device for Chinese teaching has the beneficial effects that: (1) the structure is simple; (2) the grid-drawing speed is high and the drawn grids are standard and beautiful; and (3) the two idler wheels are arranged on the horizontal rod and the tops of the idler wheels are protruded from the upper edge of the horizontal rod, so that sliding friction is converted into rolling friction during a moving process and the friction forces during the moving process are greatly reduced.

Description

A kind of language teaching is with the writing on the blackboard device of drawing squares

Technical field

The utility model relates to a kind of language teaching and uses teaching aid, and particularly a kind of language teaching is with the writing on the blackboard device of drawing squares.

Background technology

In the language teaching practice, the teacher can draw squares on blackboard in order on blackboard, to write out the Chinese character of standard usually; Owing to there is not the special device of drawing squares; So can only draw squares with ruler or set square, thereby the grid of getting is very lack of standardization, and wastes time and energy.

Summary of the invention

The problem that the utility model will solve is: provide a kind of simple in structure, language teaching of being convenient on blackboard, draw squares with the writing on the blackboard device of drawing squares.

In order to solve the problems of the technologies described above; The language teaching of the utility model is with the writing on the blackboard device of drawing squares, and comprises horizon bar, is fixed on the vertical bar of horizon bar below, is socketed with sliding sleeve on the said vertical bar; Be provided with the tight fixed bolt that is used for fixing sliding sleeve between said sliding sleeve and the vertical bar; The top of said sliding sleeve is provided with handle, and the bottom of said sliding sleeve is provided with the chalk hole of the equal placement chalk of several spacings from top to bottom, and said chalk is set with chalk in the hole.

For the ease of moving whole device and reducing the frictional force in the moving process, said horizon bar is provided with two rollers, and the top of said roller protrudes on the top edge of horizon bar.

The beneficial effect that the utility model is obtained is: (1) is simple in structure; (2) top of horizon bar is propped up the blackboard sheet frame move left and right at top, the chalk in the sliding sleeve can be drawn out the horizontal line that some intervals equate, the blackboard sheet frame that the top of horizon bar is propped up the left side moves up and down; Chalk in the sliding sleeve can be drawn out the vertical curve that some intervals equate; Horizontal line and vertical curve intersect each other, form several rows and some row grids, thereby accomplish drawing squares to blackboard; Not only speed is fast, and the grid standard of being got is attractive in appearance; (3) horizon bar is provided with two rollers, and the top of roller protrudes on the top edge of horizon bar, thereby when moving, the change sliding friction is rolling friction, greatly reduces the frictional force in the moving process.

Description of drawings

Fig. 1 is the front view of the utility model.

Fig. 2 is the right view of the utility model.

Among the figure: 1, horizon bar, 2, roller, 3, vertical bar, 4, tight fixed bolt, 5, sliding sleeve, 6, handle, 7, the chalk hole, 8, chalk.

The specific embodiment

As depicted in figs. 1 and 2; The language teaching of the utility model is with the writing on the blackboard device of drawing squares, and comprises horizon bar 1, is fixed on the vertical bar 3 of horizon bar 1 below, is socketed with sliding sleeve 5 on the said vertical bar 3; Be provided with the tight fixed bolt 4 that is used for fixing sliding sleeve 5 between said sliding sleeve 5 and the vertical bar 3; The top of said sliding sleeve 5 is provided with handle 6, and the bottom of said sliding sleeve 5 is provided with the chalk hole 7 of the equal placement chalk 8 of several spacings from top to bottom, is set with chalk 8 in the said chalk hole 7; Said horizon bar 1 is provided with two rollers 2, and the top of said roller 2 protrudes on the top edge of horizon bar 1.

In the time of concrete the use, pull handle 6 props up the top of horizon bar 1 the blackboard sheet frame move left and right at top; Chalk 8 in the sliding sleeve 5 can be drawn out the horizontal line that some intervals equate, the blackboard sheet frame that the top of horizon bar 1 is propped up the left side moves up and down, and the chalk 8 in the sliding sleeve 5 can be drawn out the vertical curve that some intervals equate; Horizontal line and vertical curve intersect each other; Form several rows and some row grids, thereby accomplish the drawing squares of blackboard, not only speed is fast; And the grid standard of being got is attractive in appearance, is convenient to the Chinese character of teacher's normalized written.

The language teaching of the utility model is with the writing on the blackboard device of drawing squares; Horizon bar 1 is provided with two rollers 2, and the top of roller 2 protrudes on the top edge of horizon bar 1, thereby when moving; The change sliding friction is rolling friction, greatly reduces the frictional force in the moving process.

The utility model is not limited to above-mentioned embodiment, and anyone should learn the structural change of under the enlightenment of the utility model, making, every with the utlity model has identical or close technical scheme, all fall within the protection domain of the utility model.

Claims

1. a language teaching is with the writing on the blackboard device of drawing squares; It is characterized in that: comprise horizon bar (1), be fixed on the vertical bar (3) of horizon bar (1) below; Be socketed with sliding sleeve (5) on the said vertical bar (3); Be provided with the tight fixed bolt (4) that is used for fixing sliding sleeve (5) between said sliding sleeve (5) and the vertical bar (3); The top of said sliding sleeve (5) is provided with handle (6), and the bottom of said sliding sleeve (5) is provided with the chalk hole (7) of the equal placement chalk (8) of several spacings from top to bottom, is set with chalk (8) in the said chalk hole (7).

2. language teaching according to claim 1 is with the writing on the blackboard device of drawing squares, and it is characterized in that: said horizon bar (1) is provided with two rollers (2), and the top of said roller (2) protrudes on the top edge of horizon bar (1).