CN211207687U

CN211207687U - Adjustable supporting base for economics teaching sand table

Info

Publication number: CN211207687U
Application number: CN202020103750.2U
Authority: CN
Inventors: 杨睿
Original assignee: Chongqing Industry Polytechnic College
Current assignee: Chongqing Industry Polytechnic College
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-08-07
Anticipated expiration: 2030-01-17

Abstract

An adjustable supporting base for an economics teaching sand table comprises four supporting legs, wherein a bottom plate is fixedly connected to the lower sides of the four supporting legs, a top plate is fixedly connected to the upper ends of the four supporting legs, four supporting plates are fixedly connected to the top plate, the four supporting plates are distributed in a rectangular mode, U-shaped grooves are formed in the upper ends of the four supporting plates, a display plate is arranged in the four U-shaped grooves, C-shaped tubes are connected to four side faces of the display plate in a sliding mode, the four C-shaped tubes correspond to the four U-shaped grooves respectively, two limiting bolts matched with the C-shaped tubes are arranged on the outer sides of the upper ends of the supporting plates, a first handle is arranged on each limiting bolt, a hinge seat is arranged at the lower end of the display plate, a spherical groove is formed in the hinge seat, a ball lead; the utility model is used for solve current sand table can not diversified adjust the problem of show angle.

Description

Adjustable supporting base for economics teaching sand table

Technical Field

The utility model belongs to the technical field of the sand table, concretely relates to adjustable economics teaching sand table is with supporting base.

Background

The economics teaching sand table simulates macroscopic and microscopic economic operation processes through chip deduction and role playing, creates a real economic environment, enables students to experience economic behaviors among enterprises, governments and consumers in real life, can integrate actual combat, operability and experience into a whole, enables the students to experience operation and macroscopic economic regulation and control of microscopic economy through scene simulation and role practice, and enables each student to obtain targeted results.

Economics teaching sand tables assume that the macro and micro economies consist of product markets and elemental markets, with participants in these markets including consumers, manufacturers, governments. At present, because whole fixed can not diversified regulation show angle when present sand table teaching show to influence teacher's teaching effect, be unfavorable for the student to listen to the class, reduced the teaching quality. Therefore, an adjustable supporting base for an economics teaching sand table is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: aims to provide an adjustable supporting base for an economics teaching sand table, which is used for solving the problems existing in the background technology.

In order to realize the technical purpose, the utility model discloses a technical scheme as follows:

an adjustable supporting base for an economics teaching sand table comprises four supporting legs, wherein a bottom plate is fixedly connected to the lower sides of the four supporting legs, a top plate is fixedly connected to the upper ends of the four supporting legs, four supporting plates are fixedly connected to the top plate, the four supporting plates are distributed in a rectangular shape, a U-shaped groove is formed in the upper ends of the four supporting plates, a display plate is arranged in the four U-shaped grooves, C-shaped tubes are slidably connected to four side surfaces of the display plate, the four C-shaped tubes correspond to the four U-shaped grooves respectively, two limiting bolts matched with the C-shaped tubes are arranged on the outer sides of the upper ends of the supporting plates, a first handle is arranged on each limiting bolt, a hinge seat is arranged at the lower end of each display plate and provided with a spherical groove, a ball head screw rod is assembled in the spherical groove, each, and the upper end of the bottom plate is provided with a transmission mechanism matched with the screw rod.

By adopting the technical scheme of the utility model, the transmission mechanism is used for moving the ball screw up and down; when the right side show angle is adjusted to the panel, twist out it through the first in command with all spacing bolts earlier, make the C venturi tube pass through the U-shaped groove from top to bottom, screw up it through the first in command with two spacing bolts on right side again, make the C venturi tube seal at the U-shaped inslot, then drive the bulb lead screw through drive mechanism and reciprocate, the bulb lead screw just through mutually supporting with articulated seat and spherical groove, jack-up the panel upwards, make the panel to the right side slope, accomplish the panel and adjust right side show angle. When the display board resets, the ball screw rod is driven to move downwards through the transmission mechanism, the ball screw rod is matched with the hinged seat and the spherical groove, the display board is pulled back, and the display board resets. Similarly, the left side, the front side and the rear side are adjusted, so that the display angle can be adjusted in multiple directions; the utility model provides an adjustable economics teaching sand table is with supporting base for solve the problem that current sand table can not diversely adjust the show angle.

Further inject, drive mechanism includes the rotation sleeve with lead screw threaded connection, it is connected with the bottom plate rotation to rotate the sleeve, it is equipped with the ring gear to rotate the sleeve outside, a pair of ann of bottom plate upper end fixedly connected with changes the boss, two ann changes the boss and rotates and be connected with the pivot, the pivot is equipped with the second handle, pivot fixedly connected with and ring gear assorted worm. With the structure, a user drives the rotating shaft to rotate by rotating the second handle, the rotating shaft drives the gear ring to rotate through the worm, the gear ring drives the rotating sleeve to rotate, the screw rod moves upwards or downwards according to the rotating direction of the rotating sleeve, and the ball head screw rod can move downwards or downwards.

Further limit, the number of the second handles is two, and the two second handles are respectively positioned at the left end and the right end of the rotating shaft. With the structure, a user can rotate the rotating shafts on the left side and the right side of the device conveniently.

Further defined, the second handle is a handwheel handle. With such a structure, the user can conveniently and continuously rotate the second handle.

Further defined, the first handle is in the shape of a chrysanthemum. Such a configuration facilitates a single hand rotation of the first handle by a user.

Further inject, the rotating sleeve upper end is equipped with spacing ring, the lead screw lower extreme is equipped with the spacing round platform with spacing ring assorted. Such structure can be spacing to the lead screw, prevents the lead screw and rotates the sleeve separation.

Compared with the prior art, the utility model has the following advantages:

with all spacing bolts through the first in command with it back out, make the C venturi tube pass through the U-shaped groove from top to bottom, screw up it through the first in command with two spacing bolts on right side again, make the C venturi tube seal at the U-shaped inslot, then drive the bulb lead screw through drive mechanism and reciprocate, the bulb lead screw just through mutually supporting with articulated seat and spherical groove, jack-up the panel makes progress, make the panel to the right side slope, accomplish the panel and adjust right side show angle, the same reason, the left side, front side and rear side are adjusted and are all made so, just so can diversified regulation show angle.

Drawings

The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

fig. 1 is a schematic structural view of an embodiment of the adjustable supporting base for the economics teaching sand table of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic structural view of an embodiment of a supporting base for an adjustable economics teaching sand table of the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

FIG. 5 is another schematic structural view of an embodiment of the adjustable supporting base for an economics teaching sand table of the present invention;

figure 6 is the utility model relates to an adjustable economics teaching sand table is with supporting the structural sketch of base embodiment C venturi tube, panel, articulated seat and spherical groove.

The main element symbols are as follows:

the support leg 1, the bottom plate 2, the top plate 21, the support plate 22, the U-shaped groove 23, the display plate 24, the C-shaped pipe 25, the limit bolt 26, the first handle 27, the hinge seat 3, the spherical groove 31, the ball screw rod 32, the ball 321, the screw rod 322, the rotating sleeve 4, the toothed ring 41, the rotation boss 42, the rotating shaft 43, the second handle 44 and the worm 45.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.

As shown in FIGS. 1-6, the utility model relates to an adjustable supporting base for an economics teaching sand table, which comprises four supporting legs 1, a bottom plate 2 fixedly connected to the lower side of the four supporting legs 1, a top plate 21 fixedly connected to the upper end of the four supporting legs 1, four supporting plates 22 fixedly connected to the top plate 21, four supporting plates 22 arranged in a rectangular distribution, U-shaped grooves 23 arranged at the upper ends of the four supporting plates 22, display plates 24 arranged in the four U-shaped grooves 23, C-shaped tubes 25 slidably connected to the four sides of the display plates 24, four C-shaped tubes 25 respectively corresponding to the four U-shaped grooves 23, two limiting bolts 26 matched with the C-shaped tubes 25 arranged at the outer side of the upper ends of the supporting plates 22, a first handle 27 arranged on the limiting bolts 26, a hinged base 3 arranged at the lower end of the display plates 24, a spherical groove 31 arranged on the hinged base 3, the screw rod 322 downwardly penetrates through the top plate 21 and is slidably connected with the top plate 21, and the upper end of the bottom plate 2 is provided with a transmission mechanism matched with the screw rod 322.

By adopting the technical scheme of the utility model, the transmission mechanism is used for moving the ball screw 32 up and down; when the display board 24 adjusts the right side show angle, will all limit bolt 26 be twisted out through the first in command 27 earlier, make C venturi tube 25 pass through U-shaped groove 23 from top to bottom, again with two limit bolt 26 on right side through the first in command 27 with it screws up, make C venturi tube 25 seal in U-shaped groove 23, then drive bulb lead screw 32 through drive mechanism and reciprocate, bulb lead screw 32 just through mutually supporting with articulated seat 3 and spherical groove 31, jack-up the display board 24 upwards, make the display board 24 to the right side slope, accomplish the display board 24 and adjust right side show angle. When the display board 24 resets, the ball screw rod 32 is driven to move downwards through the transmission mechanism, the ball screw rod 32 is matched with the hinge seat 3 and the spherical groove 31, the display board 24 is pulled back, and the display board 24 is reset. Similarly, the left side, the front side and the rear side are adjusted, so that the display angle can be adjusted in multiple directions; the utility model provides an adjustable economics teaching sand table is with supporting base for solve the problem that current sand table can not diversely adjust the show angle.

Preferably, the transmission mechanism comprises a rotating sleeve 4 in threaded connection with the screw rod 32, the rotating sleeve 4 is rotatably connected with the bottom plate 2, a toothed ring 41 is arranged on the outer side of the rotating sleeve 4, a pair of safety rotating bosses 42 is fixedly connected to the upper end of the bottom plate 2, two safety rotating bosses 42 are rotatably connected with a rotating shaft 43, the rotating shaft 43 is provided with a second handle 44, and the rotating shaft 43 is fixedly connected with a worm 45 matched with the toothed ring 41. With such a structure, a user rotates the second handle 44 to drive the rotating shaft 43 to rotate, the rotating shaft 43 drives the gear ring 41 to rotate through the worm 45, the gear ring 41 drives the rotating sleeve 4 to rotate, the screw rod 32 moves upwards or downwards according to the rotating direction of the rotating sleeve 4, and the ball screw rod 32 can move downwards or downwards. In fact, other structures that enable the ball screw 32 to move downward or downward are also contemplated as appropriate.

Preferably, the number of the second handles 44 is two, and the two second handles 44 are respectively located at the left and right ends of the rotating shaft 43. This configuration facilitates the user to rotate the shaft 43 on both the left and right sides of the device. In fact, other configurations that facilitate the user's ability to rotate the shaft 43 on both the left and right sides of the device are also contemplated as appropriate.

Preferably, the second handle 44 is a handwheel handle. This configuration facilitates the user to continue to rotate the second handle 44. In fact, other configurations that facilitate continuous rotation of the second handle 44 by the user are contemplated.

Preferably, the first handle 27 is chrysanthemum-shaped. This configuration facilitates a single hand rotation of the first handle 27 by the user. In fact, other configurations that facilitate one-handed rotation of first handle 27 by a user are contemplated.

Preferably, the upper end of the rotating sleeve 4 is provided with a limiting ring, and the lower end of the screw rod 32 is provided with a limiting round table matched with the limiting ring. Such a structure can limit the screw rod 32 and prevent the screw rod 32 from being separated from the rotating sleeve 4. In fact, other structures capable of preventing the separation of the screw 32 from the rotating sleeve 4 are also conceivable depending on the circumstances.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides an adjustable economics teaching sand table is with supporting base, includes four supporting legss (1), its characterized in that: the four supporting legs (1) are fixedly connected with a bottom plate (2) at the lower side, the four supporting legs (1) are fixedly connected with a top plate (21) at the upper end, the top plate (21) is fixedly connected with four supporting plates (22), the four supporting plates (22) are distributed in a rectangular shape, the four supporting plates (22) are respectively provided with a U-shaped groove (23), the four U-shaped grooves (23) are provided with a display plate (24), the four sides of the display plate (24) are respectively connected with a C-shaped pipe (25) in a sliding manner, the four C-shaped pipes (25) are respectively corresponding to the four U-shaped grooves (23), the outer side of the upper end of each supporting plate (22) is provided with two limiting bolts (26) matched with the C-shaped pipes (25), each limiting bolt (26) is provided with a first handle (27), the lower end of each display plate (24), spherical groove (31) are equipped with bulb lead screw (32), bulb lead screw (32) include bulb (321) and lead screw (322), lead screw (322) run through roof (21) downwards, and with roof (21) sliding connection, bottom plate (2) upper end be equipped with lead screw (322) assorted drive mechanism.

2. The adjustable supporting base for the economics teaching sand table of claim 1 wherein: drive mechanism includes the rotation sleeve (4) with lead screw (32) threaded connection, it rotates with bottom plate (2) to rotate sleeve (4) and is connected, it is equipped with ring gear (41) to rotate sleeve (4) outside, a pair of ann of bottom plate (2) upper end fixedly connected with changes boss (42), two ann changes boss (42) and rotates and is connected with pivot (43), pivot (43) are equipped with second handle (44), pivot (43) fixedly connected with and ring gear (41) assorted worm (45).

3. The adjustable supporting base for the economics teaching sand table of claim 2 wherein: the number of the second handles (44) is two, and the two second handles (44) are respectively positioned at the left end and the right end of the rotating shaft (43).

4. The adjustable supporting base for the economics teaching sand table of claim 3 wherein: the second handle (44) is a hand wheel handle.

5. The adjustable supporting base for the economics teaching sand table of claim 1 wherein: the first handle (27) is in a chrysanthemum shape.

6. The adjustable supporting base for the economics teaching sand table of claim 2 wherein: the upper end of the rotating sleeve (4) is provided with a limiting circular ring, and the lower end of the screw rod (32) is provided with a limiting circular truncated cone matched with the limiting circular ring.