CN203046638U - Multipurpose ruler for drawing lines for teaching - Google Patents

Abstract

A multi-purpose ruler for drawing lines for teaching, including a vertical ruler and a horizontal ruler. The vertical ruler is provided with a chute in the longitudinal direction, and the horizontal ruler is slidably connected to the vertical ruler chute through a pin shaft hinged on it, and the pin shaft is hinged at any angle. Ruler, the top surface on pin shaft is provided with angle scale line, and horizontal ruler is perpendicular to vertical ruler, and vertical ruler and horizontal ruler surface are provided with scale. The utility model can draw vertical lines by using a vertical ruler. Since the horizontal ruler can move up and down along the vertical ruler, parallel lines can be drawn conveniently. Since an arbitrary angle ruler is hinged on the pin shaft, and the top surface of the pin shaft is provided with an angle scale line , so it is convenient to draw oblique lines of any angle. The utility model has the advantages of simple structure, practicality and convenience, and accurate line drawing. It can be widely used as a teaching line drawing tool for blackboard drawing in finance teaching.

Description

Multipurpose ruler for teaching line drawing

Technical field:

The utility model relates to a line-drawing ruler for teaching, in particular to a line-drawing tool for teaching blackboard drawing in finance teaching.

Background technique:

At present, finance teachers often draw various graphics on the blackboard during the lecture process. They need to draw multiple parallel, vertical lines, oblique lines, curves, etc. At present, there is no special tool, the error is large, the speed is slow, and it is time-consuming and laborious. , in order to solve this problem, people have done many kinds of efforts, as the Chinese patent CN201020276409.3 discloses a technology named "blackboard angle liner", which introduces a blackboard angle liner, its structure includes Angle plate and line drawing ruler, the surface of the angle plate is provided with angle lines, the center of the angle plate with an I-shaped cross section is provided with a relatively rotatable rotating shaft, the middle part of the rotating shaft is fixedly connected with one end of the line drawing ruler, and the rotating shaft The top is connected with one end of the U-shaped handle, and the other end of the U-shaped handle is fixedly connected with the line ruler. This technology can conveniently draw lines at any angle on the blackboard. The disadvantage is that the function is single. Teachers need to prepare a variety of rulers in the teaching process to meet the teaching needs. It has become an urgent need to solve this problem.

Utility model content:

Overcome the deficiencies in the prior art, design a kind of simple in structure, easy to operate, can draw parallel and vertical drawing lines and various angle lines conveniently and draw the multipurpose ruler for teaching with various angles. The multi-purpose ruler for drawing lines for teaching includes a vertical ruler and a horizontal ruler. The vertical ruler is provided with a chute in the longitudinal direction. The horizontal ruler is slidably connected with the vertical ruler chute through a pin shaft hinged on it, and an arbitrary angle ruler is hinged on the pin shaft. An angle scale line is arranged on the upper surface of the bearing pin, the horizontal ruler is perpendicular to the vertical ruler, and scales are arranged on the surfaces of the vertical ruler and the horizontal ruler. The utility model uses a vertical ruler to draw vertical lines, and since the horizontal ruler can move up and down along the vertical ruler, parallel lines can be drawn conveniently, because an arbitrary angle ruler is hinged on the pin shaft, and an angle scale line is arranged on the top surface of the pin shaft , so it is convenient to draw oblique lines of any angle. The utility model has the advantages of simple structure, practicality and convenience, and accurate line drawing.

Description of drawings:

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

Detailed ways:

A preferred embodiment of the present utility model, as shown in the figure, the multipurpose ruler for drawing lines for teaching includes a vertical ruler 1 and a horizontal ruler 2. The vertical chi chute 5 is slidably connected, and any angle chi 3 is hinged on the bearing pin, and the upper surface of the pin shaft is provided with an angle scale line 6, and the horizontal chi is perpendicular to the vertical chi, and the vertical chi and the horizontal chi surface are provided with scales. When in use, a plurality of parallel lines can be drawn conveniently by pushing and pulling the horizontal ruler; an oblique line of any angle can be drawn by rotating any angle ruler 3 according to the angle scale line arranged on the top surface of the pin shaft.

Claims (1)

1. A multipurpose ruler for drawing lines for teaching, comprising a vertical ruler and a horizontal ruler, characterized in that: the vertical ruler is longitudinally provided with a chute, the horizontal ruler is slidably connected with the vertical ruler chute by a pin shaft hinged thereon, An arbitrary angle ruler is hinged on the shaft, an angle scale line is arranged on the upper surface of the pin shaft, the horizontal ruler is perpendicular to the vertical ruler, and scales are arranged on the surfaces of the vertical ruler and the horizontal ruler.

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