CN203920162U - English stave scriber - Google Patents

Abstract

An English four-line grid line drawing device belongs to the field of teaching tools, which solves the problem of frequent replacement of chalk in the current English line drawing device. It includes a chalk box, an upper connecting plate, a lower connecting plate, a chute, and a handle , wheels, baffle and pen press; there are four chalk boxes, four chalk boxes are arranged side by side and equidistant, the upper surfaces of the four chalk boxes are fixedly connected by the upper connecting plate, and are arranged at the front edge of the upper connecting plate There are three chutes, a handle is provided in the middle of the upper connecting plate, the lower sides of the four chalk boxes are fixedly connected through the lower connecting plate, two wheels are respectively set on the lower surface of the two outer chalk boxes, and the A baffle is arranged on the outside, and the baffle is fixedly connected to the lower surface of the corresponding chalk box; the pen presser includes four cylinders, and the four cylinders are respectively set corresponding to the openings at the front ends of the four chalk boxes, and the upper ends of the four cylinders are connected by connecting The rod is fixedly connected, and the pen presser is slidably connected with the chalk box. The utility model is used for drawing English four-line grid.

Description

English four-line grid liner

Technical field:

The utility model belongs to the field of teaching tools, in particular to an English four-line grid drawing device.

Background technique:

The English line drawing device can draw four lines and three grids in one stroke, which is very suitable for use in English teaching. The current English line drawing device needs to frequently replace the chalk in use, which is time-consuming and laborious, and brings inconvenience to English teaching.

Utility model content:

The purpose of this utility model is to solve the problem that the current English line drawing device will often replace the chalk in use, and a kind of English four-line line drawing device is provided. Its technical scheme is as follows:

An English four-line grid liner, which includes a chalk box, an upper connecting plate, a lower connecting plate, a chute, a handle, wheels, a baffle and a pen press;

There are four chalk boxes, each chalk box includes a shell, a slide cover, a bottom plate, a spring and a top plate, the rear end of the shell is an open end, and a slide cover is arranged at the rear end of the shell, and the slide cover passes through the slide rail It is slidingly connected with the shell, and a bottom plate is installed close to the sliding cover inside the shell. The gap between the bottom plate and the inner wall of the shell is 0.3-1.5mm. The bottom plate is fixedly connected with the rear end of the spring, and the front end of the spring is fixedly connected with the top plate. The gap between the inner walls is 0.3-1.5 mm. The front end of the shell is a closed end, and openings are arranged on the upper and lower surfaces of the front end of the shell; The surface is fixedly connected by the upper connecting plate, and three chutes are arranged at the front edge of the upper connecting plate, and a handle is arranged in the middle of the upper connecting plate, and the lower sides of the four chalk boxes are fixed and connected by the lower connecting plate. The lower surfaces of each chalk box are respectively provided with two wheels, and a baffle is arranged on the outside of the wheels, and the baffle is fixedly connected with the lower surface of the corresponding chalk box;

The pen presser includes four cylinders, the four cylinders correspond to the openings at the front ends of the four chalk boxes respectively, the upper ends of the four cylinders are fixedly connected by connecting rods, and three rails corresponding to the three chutes are arranged on the connecting rods, The three rails are respectively arranged in the three slide grooves so that the pen presser is slidably connected with the chalk box.

The beneficial effect of the utility model is that multiple pieces of chalk can be added to each chalk box at one time, which can be used continuously and saves time and effort.

Description of drawings:

Fig. 1 is the right side, rear side and upper side structural representation of the utility model;

Fig. 2 is the structural representation of the right side, the rear side and the lower side of the utility model;

Fig. 3 is the exploded schematic view of chalk box in the utility model;

Fig. 4 is the schematic diagram of the pen press device in the utility model;

Fig. 5 is a schematic diagram of the use state of the utility model.

Detailed ways:

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, an English four-line grid line drawing device includes a chalk box 1, an upper connecting plate 2, a lower connecting plate 3, a chute 4, a handle 5, and wheels 6. Baffle plate 7 and pen presser 8;

Described chalk box 1 has four, and each chalk box 1 comprises shell 1-1, slide cover 1-2, base plate 1-3, spring 1-4 and top plate 1-5, and the rear end of described shell 1-1 It is an open end, and a slide cover 1-2 is provided at the rear end of the shell 1-1. The slide cover 1-2 is slidably connected with the shell 1-1 through the slide rail 1-2-1, and is tightly attached to the inside of the shell 1-1. The slide cover 1-2 is provided with a base plate 1-3, the gap between the base plate 1-3 and the inner wall of the housing 1-1 is 0.3-1.5 mm, the base plate 1-3 is fixedly connected with the rear end of the spring 1-4, and the spring 1- The front end of 4 is fixedly connected with the top plate 1-5, the gap between the top plate 1-5 and the inner wall of the shell 1-1 is 0.3-1.5 mm, the front end of the shell 1-1 is a closed end, and the front end of the shell 1-1 is The upper surface and the lower surface are provided with openings 1-1-1; four chalk boxes 1 are arranged side by side and equidistant, the upper surfaces of the four chalk boxes 1 are fixedly connected by the upper connecting plate 2, and the front edge of the upper connecting plate 2 Three chutes 4 are provided at the place, and a handle 5 is provided at the middle position of the upper connecting plate 2. The lower sides of the four chalk boxes 1 are fixedly connected by the lower connecting plate 3, and the lower surfaces of the two chalk boxes 1 on the outside are respectively Two wheels 6 are set, and a baffle plate 7 is arranged on the outside of the wheels 6, and the baffle plate 7 is fixedly connected with the lower surface of the corresponding chalk box 1;

Described pen presser 8 comprises four cylinders 8-1, and four cylinders 8-1 correspond to the opening 1-1-1 of four chalk boxes 1 front ends respectively, and the upper ends of four cylinders 8-1 pass through connecting rod 8-1. 2 Fixed connection, three rails 8-3 corresponding to the three chutes 4 are set on the connecting rod 8-2, and the three rails 8-3 are respectively arranged in the three chutes 4 to slide the pen presser 8 and the chalk box 1 connect.

Preferably, the four sides of the top plate 1-5 are rounded, so that the top plate 1-5 is in line contact with the inner wall of the housing 1-1 to reduce frictional resistance.

Preferably, the top surface of the top board 1-5 is an arc-shaped inner concave surface, which can better withstand the chalk.

Preferably, the shell 1-1 is a transparent structure, so that it is convenient to see the remaining amount of chalk.

The principle and method of use of the utility model: open the sliding cover 1-2 of each chalk box 1, take out the bottom plate 1-3, spring 1-4 and top plate 1-5, and put chalk 9 into the shell 1-1; When drawing a line, push the wheel 6 against the blackboard, and the baffle plate 7 on one side against the edge of the ruler, hold the handle 5 with four fingers, press the pen press 8 down with the thumb, and the pen press 8 will press the chalk 9 Just press out the drawing line. After a piece of chalk 9 is drawn, the pen presser 8 is pulled upwards. Under the elastic force of the spring 1-4, the chalk 9 at the back is pushed to the opening 1-1-1, enabling Continue to press the pen presser 8 to draw lines.

Claims (6)

1. An English four-line grid line drawing device is characterized in that it comprises a chalk box (1), an upper connecting plate (2), a lower connecting plate (3), a chute (4), a handle (5), wheels ( 6), baffle (7) and pen presser (8); Described chalk box (1) has four, and each chalk box (1) comprises shell (1-1), slide cover (1-2), bottom plate (1-3), spring (1-4) and top plate ( 1-5), the rear end of the housing (1-1) is an open end, and a sliding cover (1-2) is arranged at the rear end of the housing (1-1), and the sliding cover (1-2) passes through the sliding The rail (1-2-1) is slidably connected to the casing (1-1), and a bottom plate (1-3) is arranged on the inside of the casing (1-1) close to the sliding cover (1-2), and the bottom plate (1-3) It is fixedly connected with the rear end of the spring (1-4), and the front end of the spring (1-4) is fixedly connected with the top plate (1-5). 1) The upper and lower surfaces of the front end are provided with openings (1-1-1); four chalk boxes (1) are arranged side by side and equidistant, and the upper surfaces of the four chalk boxes (1) pass through the upper connecting plate ( 2) Fixed connection, three slide grooves (4) are arranged at the front edge of the upper connecting plate (2), a handle (5) is arranged at the middle position of the upper connecting plate (2), and the bottom of the four chalk boxes (1) The sides are fixedly connected by the lower connecting plate (3), and two wheels (6) are respectively arranged on the lower surfaces of the two chalk boxes (1) on the outside, and a baffle (7) is provided on the outside of the wheels (6). Plate (7) is fixedly connected with the lower surface of corresponding chalk box (1); Described pen presser (8) comprises four cylinders (8-1), and four cylinders (8-1) correspond to the opening (1-1-1) setting of four chalk boxes (1) front ends respectively, four cylinders The upper end of (8-1) is fixedly connected by connecting rod (8-2), and three tracks (8-3) corresponding to three slide grooves (4) are set on the connecting rod (8-2), and the three tracks (8 -3) respectively arrange in the three chutes (4) so that the pen presser (8) is slidably connected with the chalk box (1). 2. An English four-line grid drawing device as claimed in claim 1, characterized in that the gap between the bottom plate (1-3) and the inner wall of the housing (1-1) is 0.3-1.5 millimeters. 3. An English four-line grid drawing device as claimed in claim 1, characterized in that the gap between the top plate (1-5) and the inner wall of the housing (1-1) is 0.3-1.5 millimeters. 4. An English four-line grid drawing device as claimed in claim 1, characterized in that the four sides of the top plate (1-5) are rounded. 5. An English four-line grid drawing device according to claim 1, characterized in that the top surface of the top plate (1-5) is an arc-shaped inner concave surface. 6. An English four-line grid drawing device as claimed in claim 1, characterized in that the casing (1-1) is a transparent structure.