CN203735703U - Portable teaching device - Google Patents

Abstract

The utility model aims to provide a device for bringing convenience to teachers on teaching and making the atmosphere of a classroom more activated, namely, a portable teaching device. The teaching device comprises idler wheels, a lower supporting arm, an upper supporting arm, a mechanical arm, and an L-shaped flat plate placement table. The lower end of the lower supporting arm is connected with the supporting platform, and the upper end of the lower supporting arm is connected with the upper supporting arm. The idler wheels are installed at the lower end of the supporting platform. The upper end of the upper supporting arm is connected to the lower surface of a tabletop.

Description

A portable teaching device

technical field

The utility model relates to an intelligent portable teaching device which is convenient for teachers to teach.

Background technique

Good teacher-student communication is very necessary for teaching. There are many students in domestic classes and large classrooms. Poor teacher-student communication is a major factor affecting the teaching effect. Today's multimedia desks are bulky and cannot be moved conveniently. The excessive volume forms a block, which prevents teachers from communicating with students better on the podium, and teachers cannot get off the podium to complete tasks such as writing on the screen and operating information terminals. It also caused teachers to be unable to get off the platform to better communicate with students.

At present, there are convenient mobile desks, but it cannot realize the function of information terminals such as teaching materials, materials or tablets moving with the teacher, and always in the most suitable perspective in front of the teacher. At present, the most portable multimedia terminal is a tablet computer. There are few devices for installing a tablet computer on the arm, and the existing products have disadvantages such as poor stability and troublesome use. Trial operation is required during installation, and it is even difficult for one person to complete the installation operation.

Contents of the invention

The purpose of the utility model is to provide a portable teaching desk, which is convenient for teachers to teach and makes the classroom more active.

The technical scheme adopted for realizing the purpose of the utility model is such that a portable teaching device includes a roller, a lower support arm, an upper support arm, a manipulator and an L-shaped flat plate placement platform. The lower end of the lower support arm is connected to the support platform, and the upper end is connected to the upper support arm. Rollers are installed at the lower end of the support platform. The upper end of the upper support arm is connected to the lower surface of the desktop.

A manipulator is installed on the upper surface of the desktop. The manipulator is equipped with a multi-section manipulator to realize the expected spatial movement of each part of the manipulator. The movable end of the manipulator is connected with one side of the L-shaped flat plate placing platform. The L-shaped plate placing platform includes parallel plates and vertical plates, and the lower end of the vertical plates is connected to the upper surface of the parallel plates. One side of the vertical plate is connected with the movable end of the manipulator.

A bevel gear is installed on the upper surface of the parallel plate, and the bevel gear is driven by a micro motor. A nut is installed on the upper end of the micro-motor, fixed on the lower surface of the parallel plate, and connected with the first arc plate and the second arc plate to control the angle and height of the plate.

A gourd-shaped buckle is installed on the upper end of the vertical plate. One end of the flat plate is connected with a gourd-shaped buckle. A first arc plate and a second arc plate are installed on the lower surface of the flat plate. The inner sides of the first circular arc plate and the second circular arc plate have teeth meshing with the bevel gear, and the inner sides of the first circular arc plate and the second circular arc plate are engaged with both sides of the bevel gear.

Further, the bevel gear, the first arc plate and the second arc plate are packaged in a metal box with both ends open.

Preferably, the flat plate is rectangular.

The beneficial effects of the utility model are: the current multimedia teaching method is changed, it is convenient for teachers to put teaching aids, watch computers and textbooks, and increase the interactivity of teaching classrooms. Carrying a tablet device with you allows teachers to step off the podium and play PPT, drawing, writing, displaying, etc. while interacting with students, making the classroom learning and discussion atmosphere more active, and the learning life is dreamy.

Description of drawings

Fig. 1 is the overall structure outline drawing of the present utility model;

Fig. 2 is the outline drawing of the L-shaped flat plate placing platform;

Fig. 3 is the left side view of L-shaped flat plate placing platform;

Fig. 4 is the top view of flat support plate;

Fig. 5 is an enlarged view of part A in Fig. 2;

Fig. 6 is a partially enlarged view of part A-A in Fig. 5;

Fig. 7 is a structural diagram of the rotating screw for adjusting the angle of the flat panel;

Fig. 8 is an enlarged view of the gourd-shaped buckle structure.

In the figure: 1-roller, 2-lower support arm, 3-upper support arm, 4-manipulator, 5-L-shaped flat plate placement platform, 6-gourd-shaped buckle, 7-bevel gear, 8-micro motor, 10- Flat plate, 11-metal box, 12-the first arc plate, 120-the second arc plate.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and embodiments, but it should not be understood that the scope of the above subject matter of the utility model is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present utility model, various replacements and changes made according to common technical knowledge and conventional means in this field shall be included in the protection scope of the present utility model.

A portable teaching device, comprising a roller 1, a lower support arm 2, an upper support arm 3, a manipulator 4 and an L-shaped flat board placement platform 5.

The lower end of the lower support arm 2 is connected to the support platform, and the upper end is connected to the upper support arm 3 . Rollers 1 are installed at the lower end of the support platform. The upper end of the upper support arm 3 is connected to the lower surface of the desktop. In the embodiment, the lower support arm 2 and the upper support arm 3 are cylinders supported by metal. Preferably, the lower support arm 2 is a solid cylinder, and the upper support arm 3 is a hollow cylinder with an open lower end. A gas spring is installed in the hollow cavity of the upper support arm 3 . The upper end of the lower support arm 2 is inserted into the inner cavity of the upper support arm 3 and connected with the telescopic end of the gas spring. The height of the desktop connected to the upper end of the upper support arm 3 can be adjusted through the gas spring.

Manipulator 4 is installed on the upper surface of the desktop. The manipulator 4 is equipped with a multi-section manipulator to realize the expected spatial movement of each part of the manipulator. Preferably, the manipulator 4 includes four mutually hinged metal rods. Wherein, the first section of metal rod is vertically installed on the upper surface of the desktop, its lower end can rotate, and its upper end is hinged with the second section of metal rod. Further, ball bearings are installed on the upper surface of the desktop. The axial direction of the ball bearing is perpendicular to the upper surface of the desktop. The outer ring of the ball bearing is fixedly connected to the upper surface of the desktop, and the inner ring is connected to the lower end of the first metal rod. This allows the first piece of metal to rotate freely. In this embodiment, one end of the second section of the metal rod is hinged to the first section of the metal rod, and the other end is hinged to the head end of the third section of the metal rod. The end of the third section of the metal rod is hinged to the head end of the fourth section of the metal rod. The end of the fourth section of the metal rod is the free end of the manipulator 4 . Even better, the fourth section of the metal rod is an L-shaped metal rod.

The movable end of the manipulator 4 is connected with one side of the L-shaped flat plate placing platform 5 . The L-shaped plate placing platform 5 includes parallel plates and vertical plates, and the lower ends of the vertical plates are connected to the upper surfaces of the parallel plates. One side of the vertical board is connected with the movable end of the manipulator 4, so that during the teaching process, the L-shaped flat board placing platform 5 can be pulled arbitrarily.

A bevel gear 7 is installed on the upper surface of the parallel plate, and the bevel gear 7 is driven by a micro motor 8 . The bevel gear 7 is installed on the upper end of the micro motor 8 . In the embodiment, the micro motor 8 is fixed under the parallel plate. The output shaft of the micro motor 8 drives the bevel gear 7 to connect and cooperate with the first arc plate 12 and the second arc plate 120 to control the angle and height of the flat plate 10 .

A gourd-shaped buckle 6 is installed on the upper end of the vertical plate. Referring to FIG. 8 , the gourd-shaped buckle 6 is composed of two elastic pieces, and the lower ends of the elastic pieces are fixed on the upper ends of the vertical plates. The upper end of the gourd-shaped buckle 6 is open, so that a cylinder with a diameter within a certain range can be embedded in the gourd-shaped buckle 6 and fixed by the gourd-shaped buckle 6, and when the cylinder is lifted upward, the cylinder can be separated from the buckle .

One end of the flat plate 10 is connected with the gourd-shaped buckle 6 . Referring to FIG. 4 , a cylindrical handle extends from both ends of the flat plate 10 . After the cylindrical handle is inserted into the gourd-shaped buckle 6 , the tablet 10 is obliquely supported on the L-shaped tablet placement platform 5 . A first arc plate 12 and a second arc plate 120 are installed on the lower surface of the flat plate 10 . Both the first arc plate 12 and the second arc plate 120 have one end connected to the lower surface of the flat plate 10 and the other end suspended in the air. Referring to Fig. 2, the first circular arc plate 12 and the second circular arc plate 120 are installed symmetrically. From a side view, the first circular arc plate 12 and the second circular arc plate 120 form a semicircle together, and The dangling ends overlap each other. The inner sides of the first circular arc plate 12 and the second circular arc plate 120 have teeth engaged with the bevel gear, and the inner sides of the first circular arc plate 12 and the second circular arc plate 120 are engaged with both sides of the bevel gear. It is worth noting that the tablet 10 is used to carry teaching materials, a tablet computer, and the like. After starting the micro-motor 8, the first circular arc plate 12 and the second circular arc plate 120 are drawn to one side by the bevel gear 7, or are separated to both sides, so as to be changed by the first circular arc plate 12 and the second circular arc plate 120 The inclination of the supporting plate 10.

Further, the bevel gear 7 , the first arc plate 12 and the second arc plate 120 are packaged in a metal box 11 with both ends open.

Preferably, the flat panel 10 is rectangular.

Claims (3)

1. a carry-on teaching device, is characterized in that: comprise roller (1), lower support arm (2), upper support arm (3), manipulator (4) and L shaped dull and stereotyped mounting table (5);

The lower end of described lower support arm (2) connects support platform, upper end connects upper support arm (3); Roller (1) is installed in the lower end of described support platform; The upper end of described upper support arm (3) is connected to the lower surface of desktop;

The upper surface installation manipulator (4) of described desktop; The movable end of described manipulator (4) is connected with a side of L shaped dull and stereotyped mounting table (5); Described L shaped dull and stereotyped mounting table (5) comprises parallel-plate and vertical panel, and the lower end of described vertical panel is connected to the upper surface of parallel-plate;

The upper surface of described parallel-plate is installed bevel gear (7), and described bevel gear (7) drives by micromachine (8);

Pear-Shaped buckle (6) is installed in the upper end of described vertical panel; One end of described flat board (10) is connected with Pear-Shaped buckle (6); The lower surface of described flat board (10) is installed the first arc plate (12) and the second arc plate (120); The inner side of described the first arc plate (12) and the second arc plate (120) has the tooth engaging with bevel gear, and the inner side of described the first arc plate (12) and the second arc plate (120) is engaged in the both sides of bevel gear.

2. the carry-on teaching device of one according to claim 1, is characterized in that: bevel gear (7), described the first arc plate (12) and the second arc plate (120) are encapsulated in the can (11) of open at both ends.

3. the carry-on teaching device of one according to claim 1, is characterized in that: described flat board (10) is rectangle.