CN213024974U - Sand table of international trade teaching - Google Patents

Abstract

The utility model discloses a sand table of international trade teaching, which belongs to the technical field of teaching sand tables, and comprises a base, wherein an anti-collision device is installed on the side wall of a mounting box, a first rotating rod is rotatably connected on the inner bottom wall of the mounting box, the top of the first rotating rod is connected with two groups of symmetrically arranged bent rods, a supporting disk is installed at the vertical end of each bent rod, the top of the supporting disk is connected with a sand table main body through a lifting device, a motor is installed on the inner bottom wall of the mounting box, the output end of the motor is connected with a turntable, a grooved wheel is fixedly sleeved on the rod wall of the first rotating rod positioned in the mounting box, the bottom of the turntable is connected with a shifting lever, and one end of the shifting lever, which is far away from the; the utility model discloses not only can save the time of rotating the sand table and be convenient for the student of different angles to see the sand table of different angles, can also improve the protection effect to base 1.

Description

Sand table of international trade teaching

Technical Field

The utility model relates to a teaching sand table technical field especially relates to a sand table of international trade teaching.

Background

The international trade is also called general trader, which means goods and service transaction crossing the national boundary, generally consists of import trade and export trade, so the international trade is also called import and export trade, the international trade is also called world trade, the import and export trade can adjust the utilization rate of domestic production elements, improve the international supply and demand relationship, adjust the economic structure, increase the financial income and the like, and the international trade course needs to utilize a sand table to assist teaching in the actual teaching process so that students can better master the teaching content.

Traditional teaching sand table is convenient for student on every side can all see the inside model of sand table when using, rotates the regulation through manual to the sand table mostly, but if enclose around the sand table student more, the student of different angles is given to continuous rotation sand table and watches, can waste the time that mr a lot of like this.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art and providing a sand table for international trade teaching.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a sand table of international trade teaching, the on-line screen storage device comprises a base, be connected with the mounting box on the interior diapire of base, install buffer stop on the lateral wall of mounting box, it is connected with first bull stick to rotate on the interior diapire of mounting box, the top of first bull stick is connected with the curved bar that two sets of symmetries set up, the supporting disk is installed to the vertical end of curved bar, the top of supporting disk has the sand table main part through elevating gear erection joint, install the motor on the interior diapire of mounting box, the output of motor is connected with the carousel, first bull stick is located the fixed coupling of fixed coupling on the inside pole wall of mounting box has the sheave, the bottom of carousel is connected with the driving lever, the one end that the carousel was kept away from to the driving.

Preferably, the vertical end of the curved bar is rotatably connected with a rotating shaft, the top of the rotating shaft is fixedly connected with the bottom of the supporting disc, a first gear ring is sleeved on the side wall of the supporting disc, a second gear ring is embedded on the inner wall of the base, and the first gear ring is meshed with the second gear ring.

Preferably, buffer stop includes mounting bar, an installation section of thick bamboo, second bull stick and a rubber section of thick bamboo, and the top lateral wall and the bottom lateral wall of base all are connected with the mounting bar of mutual symmetry, install the installation section of thick bamboo that a plurality of groups equidistance distributes on the relative lateral wall of two sets of mounting bars, and the one end that the mounting bar was kept away from to the installation section of thick bamboo is rotated and is connected with the second bull stick, and the fixed cover has connect the rubber section of thick bamboo on the pole wall of second bull stick.

Preferably, elevating gear includes cylinder and flexible push rod, and the cylinder is connected at the top of supporting disk, the output fixed connection of flexible push rod and cylinder, the top of flexible push rod and the bottom fixed connection of sand table main part.

Preferably, a heating plate is installed on the top of the sand table main body.

Preferably, the side wall of the turntable, which is in contact with the grooved pulley, can be provided with anti-skid grains which are uniformly distributed.

Compared with the prior art, the utility model provides a sand table of international trade teaching possesses following beneficial effect:

1. when the sand table for international trade teaching is used, the telescopic push rod is firstly controlled to move up and down when the air cylinder works to drive the sand table main body to move to a proper height, the heating plate at the bottom of the sand table main body can heat the inside of the sand table main body to enable sand to be in a dry state, the sand is prevented from being wet and agglomerated and inconvenient to operate, then the motor is controlled to work to drive the turntable fixedly connected with the output end of the turntable to rotate, the turntable can drive the shifting lever provided with the round pin to rotate, the shifting lever rotates for a circle and is clamped inside the clamping groove of the grooved wheel through the round pin, the grooved wheel is driven to rotate for a short distance, the grooved wheel is driven to realize intermittent motion, so that the first rotating rod fixedly connected with the grooved wheel is driven to rotate intermittently, the first rotating rod can drive the supporting plate to rotate through the curved rod, and the supporting plate is driven to slowly rotate and stop, therefore, students at all surrounding angles can see the model inside the sand table main body in sequence, and the supporting plate is rotationally connected with the curved bar through the rotating shaft, so the supporting plate can also rotate through the matching of the first gear ring and the second gear ring when rotating, the small plate main body can also rotate along the edge of the base on the supporting plate, the students can further conveniently see the sand table main body at all angles, the end time does not need to be adjusted by hands, when an obstacle collides with the side wall of the base, the obstacle can contact with the rubber cylinder before the rubber cylinder, the rubber cylinder can firstly play a role of buffering protection on the base, and the second rotating bar is rotationally connected with the mounting cylinder, the obstacle can rub the rubber cylinder when colliding with the rubber cylinder, so the rubber cylinder can rotate, and further play a role of unloading force on the obstacle, can accelerate the barrier to roll from the lateral wall of base and fall to not only can save the time of rotating the sand table and be convenient for the student of different angles can see the sand table of different angles, can also improve the protection effect to the base.

Drawings

Fig. 1 is a schematic structural diagram of a sand table for international trade teaching according to the present invention;

fig. 2 is a schematic view of the internal structure of a base of a sand table for international trade teaching according to the present invention;

fig. 3 is an internal front view of a base for international trade teaching according to the present invention;

fig. 4 is the utility model provides a mounting box inner structure schematic diagram of international trade teaching.

In the figure: 1. a base; 101. a second ring gear; 2. mounting a box; 3. a first rotating lever; 301. a curved bar; 302. a rotating shaft; 4. a support disc; 401. a first ring gear; 5. a cylinder; 501. a telescopic push rod; 6. a sand table body; 601. heating plates; 7. a motor; 8. a turntable; 801. a deflector rod; 802. a round pin; 9. a grooved wheel; 901. a card slot; 10. mounting a bar; 11. mounting the cylinder; 12. a second rotating rod; 13. a rubber cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-4, a sand table for international trade teaching comprises a base 1, wherein an inner bottom wall of the base 1 is connected with a mounting box 2, a side wall of the mounting box 2 is provided with an anti-collision device, an inner bottom wall of the mounting box 2 is rotatably connected with a first rotating rod 3, the top of the first rotating rod 3 is connected with two groups of symmetrically arranged bent rods 301, a supporting plate 4 is installed at the vertical end of each bent rod 301, the top of the supporting plate 4 is connected with a sand table main body 6 through a lifting device, an inner bottom wall of the mounting box 2 is provided with a motor 7, the output end of the motor 7 is connected with a rotating table 8, a grooved pulley 9 is fixedly sleeved on a rod wall of the first rotating rod 3 inside the mounting box 2, the bottom of the rotating table 8 is connected with a shifting lever 801, one end of the shifting lever 801, which is far away from the rotating table 8;

a rotating shaft 302 is rotatably connected to the vertical end of the curved rod 301, the top of the rotating shaft 302 is fixedly connected with the bottom of the supporting disk 4, a first gear ring 401 is sleeved on the side wall of the supporting disk 4, a second gear ring 101 is embedded on the inner wall of the base 1, and the first gear ring 401 is meshed with the second gear ring 101;

the anti-collision device comprises mounting bars 10, mounting cylinders 11, second rotating rods 12 and rubber cylinders 13, wherein the top side wall and the bottom side wall of the base 1 are both connected with the mounting bars 10 which are symmetrical to each other, a plurality of groups of mounting cylinders 11 which are distributed at equal intervals are mounted on the opposite side walls of the two groups of mounting bars 10, one ends of the mounting cylinders 11, far away from the mounting bars 10, are rotatably connected with the second rotating rods 12, and the rubber cylinders 13 are fixedly sleeved on the rod walls of the second rotating rods 12;

the lifting device comprises an air cylinder 5 and a telescopic push rod 501, the air cylinder 5 is connected to the top of the supporting plate 4, the telescopic push rod 501 is fixedly connected with the output end of the air cylinder 5, and the top of the telescopic push rod 501 is fixedly connected with the bottom of the sand table main body 6;

the top of the sand table main body 6 is provided with a heating plate 601;

the side wall of the rotary table 8 contacting with the grooved wheel 9 can be provided with anti-skid grains which are uniformly distributed.

When the teaching sand table is used, the telescopic push rod 501 is controlled to move up and down when the air cylinder 5 works to drive the sand table main body 6 to move to a proper height, the heating plate 601 at the bottom of the sand table main body 6 can heat the inside of the sand table main body 6 to enable sand to be in a dry state, the sand is prevented from being wet and agglomerated and inconvenient to operate, then the motor 7 is controlled to work to drive the turntable 8 fixedly connected with the output end of the turntable 8 to rotate, the turntable 8 can drive the deflector rod 801 provided with the round pin 802 to rotate, the deflector rod 801 can be clamped inside the clamping groove 901 of the grooved wheel 9 through the round pin 802 in a circle of rotation and drive the grooved wheel 9 to rotate for a short distance, so that the grooved wheel 9 realizes intermittent motion, the first rotating rod 3 fixedly connected with the grooved wheel 9 is driven to rotate intermittently, the first rotating rod 3 can drive the supporting plate 4 to rotate through the curved rod 301, and the supporting plate 4 drives, the circulation is continuous in turn, so that students at all surrounding angles can see the model inside the sand table main body 6 at intervals, and because the supporting plate 4 is rotationally connected with the curved bar 301 through the rotating shaft 302, the supporting plate 4 can rotate through the matching of the first gear ring 401 and the second gear ring 101 when rotating, the sand table main body 6 can rotate along the edge of the base 1 on the supporting plate 4, so that the students can see the sand table main body 6 at all angles, the sand table main body 6 does not need to be adjusted by hands, time is saved, when an obstacle collides with the side wall of the base 1, the obstacle can be firstly contacted with the rubber cylinder 13, so that the rubber cylinder 13 can play a role in buffering protection for the base 1, and because the second rotating bar 12 is rotationally connected with the mounting cylinder 11, the obstacle can rub with the rubber cylinder 13 when colliding with the rubber cylinder 13, thereby can make rubber cylinder 13 take place to rotate, and then play a power of unloading effect to the barrier, can accelerate the barrier to roll from the lateral wall of base 1 and fall to not only can save the time of rotating the sand table and be convenient for the student of different angles can see the sand table of different angles, can also improve the protection effect to base 1.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a sand table of international trade teaching, includes base (1), be connected with mounting box (2) on the interior diapire of base (1), its characterized in that, install buffer stop on the lateral wall of mounting box (2), it is connected with first bull stick (3) to rotate on the interior diapire of mounting box (2), the top of first bull stick (3) is connected with curved bar (301) that two sets of symmetries set up, supporting disk (4) are installed to the vertical end of curved bar (301), the top of supporting disk (4) is connected with sand table main part (6) through elevating gear erection joint, the interior diapire of mounting box (2) is installed motor (7), the output of motor (7) is connected with carousel (8), first bull stick (3) are located the fixed cover on the inside pole wall of mounting box (2) and are connected with sheave (9), the bottom of carousel (8) is connected with driving lever (801), one end, far away from the turntable (8), of the shifting lever (801) is connected with a round pin (802), and four groups of clamping grooves (901) matched with the round pin (802) are formed in the side wall of the grooved wheel (9).

2. The sand table for international trade teaching as claimed in claim 1, wherein a rotating shaft (302) is rotatably connected to the vertical end of the curved rod (301), the top of the rotating shaft (302) is fixedly connected with the bottom of the supporting plate (4), a first gear ring (401) is sleeved on the side wall of the supporting plate (4), a second gear ring (101) is embedded on the inner wall of the base (1), and the first gear ring (401) and the second gear ring (101) are meshed with each other.

3. The sand table for international trade teaching as claimed in claim 1, wherein the anti-collision device comprises a mounting bar (10), a mounting cylinder (11), a second rotating rod (12) and a rubber cylinder (13), wherein the top side wall and the bottom side wall of the base (1) are both connected with the mounting bar (10) which are symmetrical to each other, two sets of the mounting bars (10) are provided with a plurality of sets of mounting cylinders (11) which are distributed at equal intervals on the opposite side walls of the mounting bar (10), one end of each mounting cylinder (11) far away from the corresponding mounting bar (10) is rotatably connected with the second rotating rod (12), and the rubber cylinder (13) is fixedly sleeved on the rod wall of the second rotating rod (12).

4. The sand table for international trade teaching as claimed in claim 1, wherein the lifting device comprises an air cylinder (5) and a telescopic push rod (501), the air cylinder (5) is connected to the top of the supporting plate (4), the telescopic push rod (501) is fixedly connected with the output end of the air cylinder (5), and the top of the telescopic push rod (501) is fixedly connected with the bottom of the sand table main body (6).

5. A sand table for international trade teaching as claimed in claim 1, wherein a heating plate (601) is mounted on the top of the sand table body (6).

6. A sand table for international trade teaching according to claim 1, wherein the side walls of the rotary table (8) in contact with the grooved wheels (9) may have evenly distributed anti-slip patterns.

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