CN203032194U - Automatically-adjustable teaching blackboard with horizontal coordinatometer and vertical coordinatometer - Google Patents

Abstract

The utility model provides an automatically-adjustable teaching blackboard with a horizontal coordinatometer and a vertical coordinatometer. The automatically-adjustable teaching blackboard solves the problems that an existing teaching blackboard has no coordinate axes, so that drawn figures have large errors, the coordinate axes are not standard in shape, and the teaching effect is affected. The upper end and the lower end of a blackboard main body are respectively provided with a horizontal lead screw and screw nut drive pair in the length direction, each horizontal lead screw and screw nut drive pair is arranged on the blackboard main body through two supporting seats, one end of each horizontal lead screw and screw nut drive pair is fixedly connected with an output shaft of a stepped motor, and screw nuts of two horizontal lead screw and screw nut drive pairs are connected with two ends of the vertical coordinatometer, and the left end and the right end of the blackboard main body are respectively provided with a vertical lead screw and screw nut drive pair in the vertical direction. Each vertical lead screw and screw nut drive pair is arranged on the blackboard main body through two supporting seats, and screw nuts of two vertical lead screw and screw nut drive pairs are connected with two ends of the horizontal coordinatometer. The automatically-adjustable teaching blackboard is used for drawing coordinate axes.

Description

Teaching blackboard with automatic adjustment of horizontal and vertical scales

technical field

The utility model relates to a teaching blackboard, in particular to a teaching blackboard with a horizontal and vertical coordinate ruler which can be automatically adjusted.

Background technique

At present, in college mathematics teaching, teachers need to draw graphics or function curves on the blackboard. The existing teaching blackboard does not have coordinate axes, which increases the drawing time of teachers, and there are large errors in the drawn graphics, and the shape of the coordinate axes is not correct. Standards affect teaching effectiveness.

Utility model content

The utility model solves the problem that the existing teaching blackboard has no coordinate axis, which leads to large errors in the drawn graphics, and the shape of the coordinate axis is not standard, which affects the teaching effect. teaching blackboard.

The technical scheme adopted by the utility model to solve the above technical problems is: the teaching blackboard with the horizontal and vertical coordinate scales of the utility model that can be automatically adjusted includes a blackboard main body, and the teaching blackboard also includes a horizontal coordinate scale, a vertical coordinate scale, two Transverse screw nut drive pair, two longitudinal screw nut drive pairs, four stepping motors and eight support seats, a horizontal screw screw nut drive pair is respectively installed on the upper and lower ends of the blackboard body along the length direction, Each horizontal screw nut transmission pair is installed on the main body of the blackboard through two support seats, one end of each horizontal screw nut transmission pair is fixedly connected to the output shaft of a stepping motor, and the two horizontal screw nuts The screw nut of the transmission pair is connected to the two ends of the longitudinal coordinate scale; a vertical screw nut transmission pair is respectively installed on the left and right side ends of the blackboard main body along the vertical direction, and each longitudinal screw nut transmission pair is supported by two The seat is installed on the main body of the blackboard, one end of each longitudinal screw nut transmission pair is fixedly connected to the output shaft of a stepping motor, and the nuts of the two longitudinal screw nut transmission pairs are connected to both ends of the horizontal coordinate scale , the horizontal coordinate ruler is set adjacent to the front surface of the blackboard main body, and the vertical coordinate ruler is perpendicular to and adjacent to the horizontal coordinate ruler.

The beneficial effects of the utility model are: the teaching blackboard with the automatic adjustment of the horizontal and vertical coordinate scales of the utility model is provided with a horizontal coordinate scale and a vertical coordinate scale, and the horizontal coordinate scale and the vertical coordinate scale are automatically adjusted in position through the screw nut, Compared with the existing teaching blackboard, the drawn coordinate axis has a standard shape, which greatly improves the teaching effect.

Description of drawings

Fig. 1 is the front view of the teaching blackboard with horizontal and vertical coordinate scales that can be automatically adjusted of the present utility model.

Detailed ways

Specific embodiment one: as shown in Figure 1, the teaching blackboard with the horizontal and vertical coordinate scales of this embodiment that can be automatically adjusted includes a blackboard main body 1, and the teaching blackboard also includes a horizontal coordinate scale 2, a vertical coordinate scale 3, two Horizontal lead screw nut drive pair 4, two longitudinal lead screw screw nut drive pairs 5, four stepper motors 6 and eight support seats 7, a horizontal lead screw is respectively installed along the length direction on the upper and lower ends of the blackboard main body 1 Screw nut drive pair 4, each horizontal lead screw screw nut drive pair 4 is installed on the blackboard main body 1 through two support seats 7, and one end of each horizontal lead screw screw nut drive pair 4 is connected to the output of a stepper motor 6 The shaft is fixed, and the nuts of the two horizontal screw nut transmission pairs 4 are connected to the two ends of the longitudinal coordinate scale 3; the left and right side ends of the blackboard main body 1 are respectively installed with a vertical screw nut transmission pair along the vertical direction 5. Each longitudinal screw nut transmission pair 5 is installed on the blackboard main body 1 through two support seats 7, and one end of each longitudinal screw nut transmission pair 5 is fixedly connected to the output shaft of a stepping motor 6, The screw nuts of the two longitudinal screw nut transmission pairs 5 are connected to the two ends of the horizontal coordinate scale 2, the horizontal coordinate scale 2 is arranged adjacent to the front surface of the blackboard main body 1, and the vertical coordinate scale 3 and the horizontal coordinate scale 2 are perpendicular to each other. Sticker settings.

When in use, start the stepper motor 6 on the two horizontal screw nut transmission pairs 4, the stepper motors 6 on the two horizontal screw screw female transmission pairs 4 have the same speed and the opposite speed, and the two horizontal screw screws The screw nut of female transmission pair 4 moves synchronously, adjusts the position of longitudinal coordinate ruler 3 by two horizontal lead screw screw nut transmission pairs 4; The speed of the stepper motor 6 on the two longitudinal screw nut transmission pairs 5 is consistent and the speed is opposite. The screw nuts of the two longitudinal screw screw nut transmission pairs 5 move synchronously, and the horizontal coordinates are adjusted by the two longitudinal screw screw nut transmission pairs 5. The position of feet 2.

Specific embodiment two: In this embodiment, both the horizontal coordinate scale 2 and the vertical coordinate scale 3 are engraved with scales. This design makes it easy to draw the axes. Other compositions and connection methods are the same as those in Embodiment 1.

Claims (2)

1. A teaching blackboard with horizontal and vertical coordinate rulers that can be automatically adjusted, said teaching blackboard comprising a blackboard main body (1), characterized in that: said teaching blackboard also includes a horizontal coordinate ruler (2), a vertical coordinate ruler (3 ), two horizontal screw nut transmission pairs (4), two longitudinal screw screw nut transmission pairs (5), four stepper motors (6) and eight support seats (7), blackboard main body (1) The upper and lower ends of the upper and lower ends are respectively installed with a transverse lead screw nut drive pair (4) along the length direction, and each transverse lead screw nut drive pair (4) is installed on the blackboard main body (1) through two support seats (7) , one end of each horizontal lead screw nut drive pair (4) is affixed to the output shaft of a stepper motor (6), and the screw nuts of the two transverse lead screw nut drive pairs (4) are connected to the longitudinal coordinate scale ( 3) are connected at both ends; the left and right side ends of the blackboard main body (1) are respectively equipped with a longitudinal screw nut drive pair (5) along the vertical direction, and each longitudinal screw screw nut drive pair (5) passes through two A support base (7) is installed on the blackboard main body (1), and one end of each longitudinal screw nut transmission pair (5) is fixedly connected with the output shaft of a stepping motor (6), and the two longitudinal screw screws The nuts of the female drive pair (5) are connected to the two ends of the horizontal coordinate scale (2), the horizontal coordinate scale (2) is arranged adjacent to the front surface of the blackboard main body (1), and the vertical coordinate scale (3) is connected to the horizontal coordinate scale (2) Vertical and close to each other. 2. The teaching blackboard with automatic adjustment of the horizontal and vertical coordinates according to claim 1, characterized in that: the horizontal coordinates (2) and the vertical coordinates (3) are all engraved with scales.

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