CN211044672U - Teaching aid for geography teaching - Google Patents

Abstract

The utility model belongs to the technical field of teaching aids, in particular to a teaching aid for geography teaching, which comprises a base, a telescopic column is fixedly arranged at the top side of the base, a first transverse plate is fixedly arranged at the top end of the telescopic column, a second transverse plate is arranged above the first transverse plate in parallel, a third transverse plate is arranged above the second transverse plate in parallel, two first connecting rods are rotatably arranged on one side of the first transverse plate, and two head rods are located the both sides of flexible post respectively, and the top of two head rods is all rotated and is installed on one side of second diaphragm, and the top of two head rods is all rotated and has been cup jointed the one end of second connecting rod, and the other end of two second connecting rods all rotates and installs on one side of third diaphragm, the utility model discloses can be convenient for simple convenient firm expansion second diaphragm and third diaphragm, the use of accomodating of the teaching aid of being convenient for.

Description

A teaching aid for geography teaching

technical field

The utility model relates to the technical field of teaching tools, in particular to a teaching tool for geography teaching.

Background technique

Maps are often used in the process of geography teaching, and various places are displayed and explained through the map, which increases the intuition and vividness of the classroom. The maps used in the existing geography teaching process are usually printed directly on paper during teaching, and the paper is hung on the blackboard for explanation, but the explanation is inconvenient to use;

The patent with the application number of 201721859411.1 discloses a teaching aid for geography, which includes a vertically arranged support rod and an operation panel connected to the support rod. The top of the support rod is rotated with a display board; the bottom of the support rod is provided with a support seat, on the support seat Equipped with a battery; the front of the display board is provided with a light-transmitting display paper with a map of China printed on it. LED lights, the LED lights are located on the inside of the display paper; the battery supplies power to the LED lights, and switches are connected in series between each LED light and the battery, and each switch is distributed on the operation panel; the back of the display board is provided with a flexible solar panel, and the solar panel is a battery powered by. The utility model has a simple structure, so that teachers can easily explain various positions in China, and easily illuminate the positions on the map, so that the teaching process of the teachers is more vivid, and the students can more easily remember the combination of the map and the teachers' explanations. Lecture content, improve teaching effect. However, the teaching aid is inconvenient to unfold and store during use, and is inconvenient to carry and operate during use.

Utility model content

The purpose of the utility model is to propose a teaching aid for geography teaching in order to solve the shortcomings existing in the prior art.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A teaching aid for geography teaching, comprising a base, a telescopic column is fixedly installed on the top side of the base, a first transverse plate is fixedly installed at the top of the telescopic column, and a second transverse plate is arranged in parallel above the first transverse plate , a third horizontal plate is arranged in parallel above the second horizontal plate, two first connecting rods are rotatably installed on one side of the first horizontal plate, and the two first connecting rods are respectively located on both sides of the telescopic column, The top ends of the two first connecting rods are both rotatably mounted on one side of the second horizontal plate, the top ends of the two first connecting rods are rotatably sleeved with one end of the second connecting rods, and the other ends of the two second connecting rods are rotatably sleeved. Both are rotatably mounted on one side of the third horizontal plate.

Preferably, the bottom end of any first connecting rod is rotatably sleeved with one end of the inclined rod, the other end of the inclined rod is rotatably installed with a rotating shaft, and one end of the short rod is rotatably sleeved on the rotating shaft, and the other end of the short rod is rotatably installed on the On one side of the third transverse plate, and the short rod is located between the two second connecting rods.

Preferably, one end of the long rod is rotatably sleeved on the rotating shaft, and the other end of the long rod is rotatably sleeved on the top end of a first connecting rod close to the rotating shaft.

Preferably, the end of the second transverse plate close to the long rod is provided with a movable groove along the horizontal direction, a movable block is slidably installed in the movable groove, one side of the movable block extends out of the movable groove, and is fixedly installed with a movable groove. One end of the torsion spring, the other end of the torsion spring is fixedly installed with a limit rod, the limit rod is matched with the movable groove, the side of the limit rod close to the first horizontal plate is fixedly installed with a clamping block, one end of the first horizontal plate A card slot is provided just below the movable groove, and the card block is adapted to the card slot.

Preferably, a sliding groove is opened on the inner wall of the bottom side of the movable groove, a sliding block is slidably installed in the sliding groove, the top side of the sliding block is fixedly connected with the bottom side of the movable block, and a spring is fixedly installed on the inner wall of the movable groove one end of the spring, and the other end of the spring is fixedly installed on the movable block.

In the utility model, the teaching aid for geography teaching is provided with a base, a telescopic column, a first horizontal board, a second horizontal board and a third horizontal board, so it is convenient to connect the first horizontal board and the second horizontal board. The board and the third horizontal board are folded to facilitate the storage of teaching aids;

Since the first connecting rod, the second connecting rod, the inclined rod, the rotating shaft, the short rod, the long rod, the limit rod, the clamping block, the clamping groove, the movable groove, the spring, the movable block, the sliding groove, the sliding block, the torsion Therefore, the third horizontal plate is lifted up, and the third horizontal plate drives the second horizontal plate to move upward through the second connecting rod. At the same time, the second horizontal plate rotates based on the first horizontal plate through the first connecting rod, and the third horizontal plate The board makes the connection structure of the second horizontal board and the third horizontal board stable through the inclined rod, the rotating shaft, the short rod and the long rod. When the second horizontal board and the third horizontal board are unfolded, the limit rod is pulled, and the limit rod drives the movement. The block slides in the movable groove, and when the spring is stretched, the limit rod moves out of the movable groove, and the clamping block is driven into the clamping groove under the action of the torsion spring, which can facilitate the second horizontal plate and the third horizontal plate. The position of a horizontal plate is stable;

The utility model can easily, conveniently and stably unfold the second horizontal plate and the third horizontal plate, and is convenient for the storage and use of teaching aids.

Description of drawings

Fig. 1 is the structural representation of a kind of teaching aid for geography teaching proposed by the utility model;

2 is a schematic diagram of the connection structure between the second horizontal plate and the limit rod of a teaching aid for geography teaching proposed by the utility model;

FIG. 3 is a schematic structural diagram of part A of a teaching aid for geography teaching proposed by the utility model.

In the figure: 1 base, 2 telescopic column, 3 first horizontal plate, 4 second horizontal plate, 5 third horizontal plate, 6 first connecting rod, 7 second connecting rod, 8 inclined rod, 9 rotating shaft, 10 short rod , 11 long rod, 12 limit rod, 13 block, 14 card slot, 15 movable groove, 16 spring, 17 movable block, 18 sliding groove, 19 sliding block, 20 torsion spring.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Example 1

1-3, a teaching aid for geography teaching, including a base 1, a telescopic column 2 is fixedly installed on the top side of the base 1, the telescopic column 2 is an existing commonly used adjustable telescopic rod, and the top of the telescopic column 2 is fixedly installed There is a first transverse plate 3, a second transverse plate 4 is arranged in parallel above the first transverse plate 3, a third transverse plate 5 is arranged in parallel above the second transverse plate 4, and is rotated and installed on one side of the first transverse plate 3 There are two first connecting rods 6, and the two first connecting rods 6 are respectively located on both sides of the telescopic column 2, and the top ends of the two first connecting rods 6 are rotatably installed on one side of the second transverse plate 4, and the two The top ends of the first connecting rods 6 are both rotatably sleeved with one end of the second connecting rods 7 , and the other ends of the two second connecting rods 7 are rotatably mounted on one side of the third horizontal plate 5 . , 2 telescopic columns, 3 the first horizontal board, 4 the second horizontal board, 5 the third horizontal board, therefore, it is convenient to fold the first horizontal board 3, the second horizontal board 4 and the third horizontal board 5, which is convenient for the teaching aids. storage.

In the present invention, the bottom end of any first connecting rod 6 is rotatably sleeved with one end of the oblique rod 8, the other end of the oblique rod 8 is rotatably installed with a rotating shaft 9, and the rotating shaft 9 is rotatably sleeved with one end of the short rod 10, The other end of the short rod 10 is rotatably mounted on one side of the third horizontal plate 5, and the short rod 10 is located between the two second connecting rods 7, and one end of the long rod 11 is rotatably sleeved on the rotating shaft 9, and the long rod 11 The other end is rotatably connected to the top end of a first connecting rod 6 close to the rotating shaft 9, and one end of the second transverse plate 4 close to the long rod 11 is provided with a movable groove 15 along the horizontal direction, and the movable groove 15 is slidably installed. There is a movable block 17, one side of the movable block 17 extends to the outside of the movable groove 15, and one end of the torsion spring 20 is fixedly installed, and the other end of the torsion spring 20 is fixedly installed with a limit rod 12, the limit rod 12 and the movable groove. 15, the side of the limit rod 12 close to the first horizontal plate 3 is fixedly installed with a clamping block 13, and one end of the first transverse plate 3 is provided with a clamping slot 14 directly below the movable groove 15, and the clamping block 13 Matching with the card slot 14, a sliding slot 18 is opened on the bottom side inner wall of the movable slot 15, a sliding block 19 is slidably installed in the sliding slot 18, and the top side of the sliding block 19 is fixedly connected with the bottom side of the movable block 17, One end of the spring 16 is fixedly installed on the inner wall of the movable groove 15, and the other end of the spring 16 is fixedly installed on the movable block 17, and the third horizontal plate 5 is lifted upward, and the third horizontal plate 5 drives the second horizontal plate 5 through the second connecting rod 7. The plate 4 moves upward, at the same time, the second horizontal plate 4 rotates based on the first horizontal plate 3 through the first connecting rod 6, and the third horizontal plate 5 makes the second horizontal plate 5 through the inclined rod 8, the rotating shaft 9, the short rod 10 and the long rod 11 The connection structure of the horizontal plate 4 and the third horizontal plate 5 is stable. When the second horizontal plate 4 and the third horizontal plate 5 are unfolded, the limit rod 12 is pulled, and the limit rod 12 drives the movable block 17 to slide in the movable groove 15 , and the tension spring 16, the limit rod 12 moves out of the movable groove 15, and the torsion spring 20 drives the clamping block 13 into the clamping groove 14 under the action, which can facilitate the second transverse plate 4 and the third transverse plate 5 based on The position of the first transverse plate 3 is stable.

Embodiment 2

1-3, a teaching aid for geography teaching includes a base 1, a telescopic column 2 is fixedly welded on the top side of the base 1, a first horizontal plate 3 is fixedly welded on the top of the telescopic column 2, and the A second transverse plate 4 is arranged in parallel above, a third transverse plate 5 is arranged in parallel above the second transverse plate 4, and two first connecting rods 6 are rotatably installed on one side of the first transverse plate 3, and the two A connecting rod 6 is located on both sides of the telescopic column 2 respectively, the top ends of the two first connecting rods 6 are rotatably mounted on one side of the second horizontal plate 4, and the top ends of the two first connecting rods 6 are both rotatably sleeved with One end of the second connecting rod 7 and the other end of the two second connecting rods 7 are both rotatably mounted on one side of the third horizontal plate 5 .

In the present invention, the bottom end of any first connecting rod 6 is rotatably sleeved with one end of the oblique rod 8, the other end of the oblique rod 8 is rotatably installed with a rotating shaft 9, and the rotating shaft 9 is rotatably sleeved with one end of the short rod 10, The other end of the short rod 10 is rotatably mounted on one side of the third transverse plate 5 , and the short rod 10 is located between the two second connecting rods 7 .

In the present invention, one end of the long rod 11 is rotatably sleeved on the rotating shaft 9 , and the other end of the long rod 11 is rotatably sleeved on the top of a first connecting rod 6 close to the rotating shaft 9 .

In the present invention, a movable groove 15 is formed on one end of the second transverse plate 4 close to the long rod 11 along the horizontal direction. A movable block 17 is slidably installed in the movable groove 15, and one side of the movable block 17 extends to the movable groove. 15, and one end of the torsion spring 20 is fixedly welded, and the other end of the torsion spring 20 is fixedly welded with a limit rod 12, the limit rod 12 is matched with the movable groove 15, and the limit rod 12 is close to the first horizontal plate 3. One side is fixedly welded with a clamping block 13, and one end of the first horizontal plate 3 is provided with a clamping groove 14 located directly below the movable groove 15, and the clamping block 13 is adapted to the clamping groove 14. The cooperation is convenient to stabilize the position of the second horizontal plate 4 , and the third horizontal plate 5 can stabilize its structure through the inclined rod 8 , the rotating shaft 9 , the short rod 10 and the long rod 11 .

In the present invention, a sliding groove 18 is opened on the inner wall of the bottom side of the movable groove 15, a sliding block 19 is slidably installed in the sliding groove 18, the top side of the sliding block 19 is fixedly connected with the bottom side of the movable block 17, and the movable groove One end of the spring 16 is fixedly welded on the inner wall of 15 , and the other end of the spring 16 is fixedly welded on the movable block 17 .

According to the working principle of the present invention, the third horizontal plate 5 is lifted upward, and the third horizontal plate 5 drives the second horizontal plate 4 to move upward through the second connecting rod 7 . The first transverse plate 3 rotates, and the third transverse plate 5 makes the connection structure of the second transverse plate 4 and the third transverse plate 5 stable through the inclined rod 8, the rotating shaft 9, the short rod 10 and the long rod 11. 4 and the third horizontal plate 5 are unfolded, pull the limit rod 12, the limit rod 12 drives the movable block 17 to slide in the movable groove 15, and stretches the spring 16, the limit rod 12 moves out of the movable groove 15, and the torsion spring The clamping block 13 is driven into the clamping slot 14 under the action of 20 , which can facilitate the stabilization of the position of the second transverse plate 4 and the third transverse plate 5 based on the first transverse plate 3 .

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (5)

1. A teaching aid for geography teaching comprises a base (1) and is characterized in that a telescopic column (2) is fixedly installed on the top side of the base (1), a first transverse plate (3) is fixedly installed at the top end of the telescopic column (2), a second transverse plate (4) is arranged above the first transverse plate (3) in parallel, a third transverse plate (5) is arranged above the second transverse plate (4) in parallel, two first connecting rods (6) are rotatably arranged on one side of the first transverse plate (3), and two head rods (6) are respectively located the both sides of flexible post (2), and the top of two head rods (6) all rotates and installs on one side of second diaphragm (4), and the top of two head rods (6) all rotates the one end that has cup jointed second connecting rod (7), and the other end of two second connecting rod (7) all rotates and installs on one side of third diaphragm (5).

2. A geography teaching aid according to claim 1, wherein one end of a diagonal rod (8) is rotatably sleeved at the bottom end of any one first connecting rod (6), a rotating shaft (9) is rotatably installed at the other end of the diagonal rod (8), one end of a short rod (10) is rotatably sleeved on the rotating shaft (9), the other end of the short rod (10) is rotatably installed on one side of a third transverse plate (5), and the short rod (10) is located between two second connecting rods (7).

3. A geography teaching aid according to claim 2, wherein one end of the long rod (11) is rotatably sleeved on the rotating shaft (9), and the other end of the long rod (11) is rotatably sleeved on the top end of a first connecting rod (6) close to the rotating shaft (9).

4. The teaching aid of claim 1, characterized in that, one end of the second transverse plate (4) close to the long rod (11) is provided with a movable groove (15) along the horizontal direction, a movable block (17) is slidably mounted in the movable groove (15), one side of the movable block (17) extends out of the movable groove (15), and one end of a torsion spring (20) is fixedly mounted, the other end of the torsion spring (20) is fixedly mounted with a limiting rod (12), the limiting rod (12) is matched with the movable groove (15), one side of the limiting rod (12) close to the first transverse plate (3) is fixedly mounted with a clamping block (13), one end of the first transverse plate (3) is provided with a clamping groove (14) under the movable groove (15), and the clamping block (13) is matched with the clamping groove (14).

5. A geography teaching aid according to claim 4, wherein a sliding groove (18) is formed in the inner wall of the bottom side of the movable groove (15), a sliding block (19) is slidably mounted in the sliding groove (18), the top side of the sliding block (19) is fixedly connected with the bottom side of the movable block (17), one end of a spring (16) is fixedly mounted on the inner wall of the movable groove (15), and the other end of the spring (16) is fixedly mounted on the movable block (17).

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