CN210925112U

CN210925112U - Economics teaching supply and demand relation display model

Info

Publication number: CN210925112U
Application number: CN201922246417.7U
Authority: CN
Inventors: 冯腾蛟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-07-03
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses an economics teaching supply and demand relation show model, including the bottom water tank, the upper surface of bottom water tank has the demand water tank through bracing piece fixed mounting, the lower fixed surface of demand water tank installs the demand valve, the last fixed surface of demand water tank installs the supply water tank, the lower fixed surface of supply water tank installs the supply valve, the rear side surface of demand water tank passes through straight tube fixedly connected with communicating pipe, the inboard surface sliding connection of communicating pipe has the floating block, the last fixed surface of floating block installs U type pole, the surface sliding connection of U type pole is in the surface of communicating pipe, the fixed mounting of surface end department of U type pole has the indicator, can improve the convenience and the stability of using like this greatly, guarantees the show teaching effect.

Description

Economics teaching supply and demand relation display model

Technical Field

The utility model relates to a teaching model field, more specifically say, relate to an economics teaching supply and demand relation show model.

Background

In the economics teaching work, in order to intuitively demonstrate the change of supply and demand relations, a model is generally adopted for demonstration, and the change and the influence of the price of an article are directly indicated through the supply and demand change.

However, most of the existing display models simply display price changes through pointer changes, the changes of supply and demand cannot be clearly displayed, the display effect is poor, and in economics, government intervention is accompanied, and the existing models cannot be displayed and visually expressed, so that the teaching effect is influenced.

SUMMERY OF THE UTILITY MODEL

Problem to exist among the prior art, the utility model aims to provide an economics teaching supply and demand relation show model, demand water tank and supply water tank through range upon range of connection, can come the change of directly perceived show supply demand through rivers quantity, convenient teaching, connecting floating block and U type pole through the communicating pipe of intercommunication simultaneously, can avoid the interference of water impact, guarantee the stability of bandwagon effect, simultaneously through connecting intervention nut at instruction threaded rod both ends, can simulate dry prognostic price change, convenience and stability that can improve the use so greatly, guarantee show teaching effect.

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides an economics teaching supply and demand relation display model, includes the bottom water tank, the upper surface of bottom water tank has the demand water tank through bracing piece fixed mounting, the lower fixed surface of demand water tank installs the demand valve, the last fixed surface of demand water tank installs supply water tank, the lower fixed surface of supply water tank installs supply valve, the rear side surface of demand water tank passes through straight tube fixedly connected with communicating pipe, the inboard surface sliding connection of communicating pipe has the floating block, the last fixed surface of floating block installs U type pole, the surface sliding connection of U type pole is in the surface of communicating pipe, the surface end fixed mounting of U type pole has the indicator.

Furthermore, the demand valves and the supply valves are four and are evenly distributed at equal intervals, the number of the valves which can be opened and closed can be selected to show the supply demand change through mounting the valves, and the demand valve and the supply valve are visual and convenient to use.

Furthermore, a guide head is fixedly adhered to the outer surface of the floating block, the outer surface of the guide head is connected to the inner side surface of the communicating pipe in a sliding mode, the floating block is supported through the guide head, the up-and-down floating stability is guaranteed, and interference is reduced.

Further, the inside rear side fixed mounting of bottom water tank has the instruction threaded rod, the instruction threaded rod is located the rear end position of communicating pipe, demonstrates through supporting the threaded rod, and is more directly perceived.

Furthermore, the surface of instructing the threaded rod is equipped with instructs the plane, the surface sliding connection of instructing the head instructs planar surface, through set up on instructing the threaded rod and instruct the plane, can show the scale, from the top down increases in proper order, and then can show price change directly perceived, convenient teaching.

Furthermore, intervention nuts are connected to two ends of the outer surface of the indication threaded rod in a threaded mode, the intervention nuts are located at the upper end of the indication head, and the intervention nuts are installed, so that the price change range of the dry state can be simulated, the comprehensiveness of display is guaranteed, and the teaching quality is improved.

Further, the front side surface fixed mounting of bottom water tank has the working shaft, the working shaft passes through the fixed inside that communicates in the working shaft water tank of pipeline, through installation working shaft, can continuously supply water, does benefit to long-time show and uses.

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

(1) this scheme is through the demand water tank of range upon range of connection and supply with the water tank, can come the change of directly perceived show supply demand through rivers quantity, and convenient teaching connects floating block and U type pole through communicating pipe of intercommunication simultaneously, can avoid the interference of rivers impact, guarantees the stability of bandwagon effect.

(2) The quantity that can select the switching through installing a plurality of valves demonstrates the supply demand change, and is more directly perceived, facilitates the use.

(3) The floating block is supported by the guide head, so that the stability of up-and-down floating is ensured, and the interference is reduced.

(4) The display is carried out through the supporting threaded rod, and the display is visual.

(5) Through set up the instruction plane on instructing the threaded rod, can show the scale, from the top down increases in proper order, and then can show the price change directly perceived, convenient teaching.

(6) Through installing the intervention nut, the price change range of the intervention nut can be simulated, the comprehensiveness of the display is ensured, and the teaching quality is improved.

(7) Through the installation working shaft, can continuously supply water, do benefit to long-time show and use.

Drawings

Fig. 1 is a perspective view of the overall structure of the present invention;

fig. 2 is a schematic internal cross-sectional view of the present invention;

FIG. 3 is a schematic cross-sectional view of the floating block connection of the present invention;

fig. 4 is a schematic cross-sectional view of an indicating threaded rod according to the present invention.

The reference numbers in the figures illustrate:

1 bottom water tank, 11 support rods, 12 demand water tank, 13 demand valve, 14 supply water tank, 15 supply valve, 16 communicating pipe, 17 floating block, 18U-shaped rod, 19 indicating head, 2 guiding head, 21 indicating threaded rod, 22 indicating plane, 23 intervening nut, 24 water supply pump and 25 pipeline.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-4, a model for displaying the supply and demand relationship in economics teaching comprises a bottom water tank 1, referring to fig. 1, fig. 2 and fig. 3, wherein the bottom water tank 1 can store water and contact with the outflow water to ensure the stability of long-term display, a demand water tank 12 is fixedly arranged on the upper surface of the bottom water tank 1 through a support rod 11, a demand valve 13 is fixedly arranged on the lower surface of the demand water tank 12 to simulate market demand, visual demonstration is realized by opening and closing the demand valve 13 to facilitate viewing, a supply water tank 14 is fixedly arranged on the upper surface of the demand water tank 12, a supply valve 15 is fixedly arranged on the lower surface of the supply water tank 14, visual demonstration of supply quantity change is realized by opening and closing the supply valve 15 to facilitate use, a communicating pipe 16 is fixedly connected to the rear side surface of the demand water tank 12 to form a communicating vessel, and further reduce the, guarantee the stability of fluctuation from top to bottom, do benefit to the show, the inboard surface sliding connection of communicating pipe 16 has floating block 17, floating block 17's last fixed surface installs U type pole 18, the surface sliding connection of U type pole 18 is in the surface of communicating pipe 16, the surface end fixed mounting of U type pole 18 has indicating head 19, can be connected to on the instruction plane 22, can direct-viewing display price change like this, it is lower more to make progress the price, floating block 17's surface fixed adhesion has direction head 2, support through direction head 2, gliding stability from top to bottom can be guaranteed, simultaneously can not interfere the water circulation, the surface sliding connection of direction head 2 is in the inboard surface of communicating pipe 16.

Referring to fig. 2 and 4, an indicating threaded rod 21 is fixedly installed on the rear side of the inside of the bottom water tank 1, the indicating threaded rod 21 is located at the rear end of the communicating pipe 16, an indicating plane 22 is arranged on the outer surface of the indicating threaded rod 21, and is provided with scale values for displaying price changes, the outer surface of the indicating head 19 is slidably connected to the outer surface of the indicating plane 22, intervention nuts 23 are threadedly connected to both ends of the outer surface of the indicating threaded rod 21, and intervention nuts 23 are connected to both ends of the outer surface of the indicating threaded rod 21, so that the intervention positions can be adjusted, and government intervention states can be simulated, so that price changes are stabilized in an intervention interval even if supply and demand relations change, natural states and intervention states of supply and demand relations can be more comprehensively displayed, teaching use is facilitated, the intervention nuts 23 are located at the upper end of the indicating head 19, belonging to the prior art and not described in detail, the water supply pump 24 is fixedly connected to the interior of the supply tank 14 through a pipe 25.

When the water dispenser is used, water can be pumped into the supply water tank 14, then the supply valve 15 can be opened, the supply quantity is simulated to change, water flow enters the demand water tank 12, different quantities of demand valves 13 can not be opened, the demand quantity is simulated to change, therefore, when the supply quantity is smaller than the demand quantity, water cannot be stored in the demand water tank 12, the floating block 17 is positioned at the bottommost position, the indicating head 19 indicates the maximum value, when the supply valve 15 is opened in a larger quantity, the supply water flow is larger, the demand quantity is small, water can be stored in the demand water tank 12, the liquid level is increased, the floating block 17 floats upwards, the indicating head 19 is driven by the U-shaped rod 18 to slide upwards, the price change can be visually displayed, and when government intervention is carried out, the intervention nut 23 can be connected to the indicating threaded rod 21 and adjusted to the intervention position, the government intervention state is simulated, and therefore, even if the supply and demand relation changes, the price change is also stabilized in the intervention interval, and the natural state and the intervention state of the supply and demand relation are comprehensively displayed, so that the teaching and use are convenient, the stability and the high efficiency are realized, and the teaching quality is effectively improved.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides an economics teaching supply and demand relation show model, includes bottom water tank (1), its characterized in that: the utility model discloses a water supply device, including bottom water tank (1), upper surface, straight tube fixedly connected with communicating pipe (16) are passed through to the lower fixed surface of demand water tank (12), the upper surface fixed mounting of demand water tank (12) has demand water tank (12), the lower fixed mounting of supply water tank (14) has supply valve (15), the rear side surface of demand water tank (12) passes through straight tube fixedly connected with communicating pipe (16), the inboard surface sliding connection of communicating pipe (16) has floating block (17), the last fixed surface of floating block (17) installs U type pole (18), the surface sliding of U type pole (18) is connected in the surface of communicating pipe (16), the surface end fixed mounting of U type pole (18) has indicator head (19).

2. The economics teaching supply and demand relationship demonstration model according to claim 1 wherein: the demand valves (13) and the supply valves (15) are four in number and are evenly distributed at equal intervals.

3. The economics teaching supply and demand relationship demonstration model according to claim 1 wherein: the outer surface of the floating block (17) is fixedly adhered with a guide head (2), and the outer surface of the guide head (2) is connected to the inner side surface of the communicating pipe (16) in a sliding manner.

4. The economics teaching supply and demand relationship demonstration model according to claim 1 wherein: the inside rear side fixed mounting of bottom water tank (1) has instruction threaded rod (21), instruction threaded rod (21) are located the rear end position of communicating pipe (16).

5. The economics teaching supply and demand relationship demonstration model according to claim 4 wherein: the outer surface of the indication threaded rod (21) is provided with an indication plane (22), and the outer surface of the indication head (19) is connected to the outer surface of the indication plane (22) in a sliding mode.

6. The economics teaching supply and demand relationship demonstration model according to claim 4 wherein: and interference nuts (23) are connected to two ends of the outer surface of the indication threaded rod (21) in a threaded manner, and the interference nuts (23) are located at the upper end of the indication head (19).

7. The economics teaching supply and demand relationship demonstration model according to claim 1 wherein: a water supply pump (24) is fixedly arranged on the front side surface of the bottom water tank (1), and the water supply pump (24) is fixedly communicated with the inside of the water supply tank (14) through a pipeline (25).