CN212061639U

CN212061639U - Macroscopic economics national economy circulation demonstration model

Info

Publication number: CN212061639U
Application number: CN202021200528.0U
Authority: CN
Inventors: 郝翠霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-26
Filing date: 2020-06-26
Publication date: 2020-12-01
Anticipated expiration: 2030-06-26

Abstract

The utility model discloses a macroscopic economy science national economy circulation demonstration model, including explanation board, guard box and base, the equal fixedly connected with universal wheel of four corners of base bottom, and the equal vertical fixedly connected with C type riser in both sides on base top, the horizontal fixedly connected with guard box in top of C type riser, and the horizontal fixedly connected with bottom plate of intermediate position department of the inside bottom of guard box, the fixed articulated scissors crane that has in one side on guard box top, and the horizontal fixed hinge in top of scissors crane has the roof, one side fixedly connected with fixed plate on roof top, and the fixed surface of bull stick is connected with the explanation board. The utility model discloses an at the inside scissors crane that sets up of protective housing, utilize the expansion and the accomodating of scissors crane, be convenient for arrange the explanation board in the protective housing outside completely or accomodate in the protective housing the inside, when avoiding not using, explanation board surface deposition or receive external force and damage, the maintenance of increase device becomes.

Description

Macroscopic economics national economy circulation demonstration model

Technical Field

The utility model relates to a demonstration model technical field specifically is a macroscopic economics national economy circulation demonstration model.

Background

With the development of society, the national economy of China is rapidly developed, wherein the macro economy is mainly used for researching the total economic quantities such as the general employment level, the total national income and the like by taking the activities of the general national economy process as a research object, and a demonstration model is used for explaining the knowledge at present, but the existing macro economy national economy circulation demonstration model has many problems or defects:

firstly, the traditional macro-economics national economy circulation demonstration model has no adjusting structure when in use, and the angle of an explanation board is fixed, so that the explanation is inconvenient;

secondly, the traditional macro-economics national economy circulation demonstration model has no protection structure when in use, and the explanation board is placed outside and is easy to be adhered with dust or damaged by external force;

third, the traditional macro-economics national economy circulation demonstration model has no fixed structure when in use, and the demonstration model is not firm enough and easy to slide under external force.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a macroscopic economy science national economy circulation demonstration model to solve the inconvenient regulation that proposes in the above-mentioned background art, can not protect and fix not firm problem inadequately.

In order to achieve the above object, the utility model provides a following technical scheme: a macroscopic economics national economy circulation demonstration model comprises an explanation plate, a protection box and a base, wherein universal wheels are fixedly connected at four corners of the bottom end of the base, fixed structures are arranged at the upper ends of two sides of the base, a storage box is fixedly connected at the middle position of the top end of the base, C-shaped vertical plates are vertically and fixedly connected at two sides of the top end of the base, the protection box is transversely and fixedly connected at the top end of each C-shaped vertical plate, a bottom plate is transversely and fixedly connected at the middle position of the bottom end inside the protection box, a scissors lifting frame is fixedly hinged at one side of the top end of the protection box, a top plate is transversely and fixedly hinged at the top end of the scissors lifting frame, first sliding grooves are transversely formed in one sides inside the top plate and the bottom plate, first sliding blocks are respectively and slidably connected inside the first sliding grooves, one ends of the first sliding blocks are respectively hinged, and the inside horizontal fixedly connected with of bottom plate on one side of first slider runs through the second threaded rod of guard box lateral wall, one side fixedly connected with fixed plate on roof top, and the top of fixed plate is provided with adjusts the structure, the bull stick has transversely been run through to the inside one side of fixed plate, and the fixed surface of bull stick is connected with the explanation board, the one end of explanation board one side is provided with writes the district, the upper end fixedly connected with push-and-pull rod of guard box one side.

Preferably, the horizontal fixedly connected with flexible pad in the upper end that the explanation board kept away from writing district one end, and the even fixedly connected with friction of one end of flexible pad is protruding.

Preferably, the explanation board is close to the even fixedly connected with dead lever in one side of writing district one end, and the one end on dead lever surface all twines pressure spring, the equal sliding connection in dead lever surface of pressure spring one end has L type briquetting.

Preferably, the inside of adjusting the structure has set gradually regulation hole, regulation pole and regulating spring, adjust the vertical top of running through at the fixed plate of pole, and the upper end winding on regulation pole surface has regulating spring, the fixed plate on bull stick surface is inside evenly seted up with adjusting pole matched with regulation hole.

Preferably, the upper ends of the two sides in the protection box are vertically provided with second sliding grooves, the inside of each second sliding groove is connected with a second sliding block in a sliding mode, and one end of each second sliding block is welded with one side of the top plate.

Preferably, fixed knot constructs's inside has set gradually fly leaf, gasbag, reset spring, anti-skidding sucking disc, fixed case and first threaded rod, the equal fixed connection of fixed case is in the inside both sides of base, and the vertical first threaded rod that runs through in intermediate position department on fixed case top, the inside horizontal sliding connection of fixed case of first threaded rod bottom has the fly leaf, and the equal vertical anti-skidding sucking disc that runs through in both ends of fly leaf bottom, the equal fixedly connected with gasbag in intermediate position department of fixed case bottom, and the equal fixedly connected with reset spring in both ends of gasbag inside, the both sides of gasbag are all through pipe and the inside intercommunication of anti-skidding sucking disc.

Compared with the prior art, the beneficial effects of the utility model are that: the macro-economics national economy circulation demonstration model is reasonable in structure and has the following advantages:

(1) the adjusting rod is moved to be completely separated from the adjusting hole by arranging the fixed plate on one side of the top end of the top plate, and the adjusting structure is arranged on the top end of the fixed plate, and then the rotating rod is rotated to enable the explaining plate to deflect, so that the device can be inclined at different angles, the situation that students or audiences cannot watch clearly due to indoor light factors is avoided, and the user experience of users is improved;

(2) the top plate and the scissors lifting frame are arranged in the protection box, the scissors lifting frame is stored by moving the first sliding block by rotating the second threaded rod, and the top plate is driven to descend stably, so that the explanation board is completely stored in the protection box, the problem that the explanation board is exposed outside for a long time to cause surface dust accumulation or damage due to external force is avoided, and the maintenance cost of the device is further increased;

(3) the utility model discloses a portable electronic device, including base, portable electronic device, gasbag, reset spring, fixed knot structure, through setting up fixed knot in base both sides, through rotating first threaded rod, make the fly leaf slide and drive the anti-skidding sucking disc decline, press down the gasbag simultaneously, discharge the partial air in the gasbag, after anti-skidding sucking disc contact ground, loosen the gasbag, under reset spring's spring action, make the gasbag resume the former state, make under external atmospheric pressure, anti-skidding sucking disc produces the negative pressure, produce suction, improve the fixed stability of device, avoid the device to receive the external force and slide, lead to demonstration article to drop, the.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the bottom view of the base of the present invention;

fig. 4 is an enlarged schematic view of the adjusting structure of the present invention.

In the figure: 1. fixing the rod; 2. an explanation board; 3. an adjustment structure; 301. an adjustment hole; 302. adjusting a rod; 303. adjusting the spring; 4. a fixing plate; 5. a top plate; 6. a scissor lifting frame; 7. a protection box; 8. a storage box; 9. a C-shaped vertical plate; 10. a base; 11. a universal wheel; 12. a base plate; 13. a first chute; 14. a first slider; 15. a fixed structure; 1501. a movable plate; 1502. an air bag; 1503. a return spring; 1504. an anti-slip sucker; 1505. a fixed box; 1506. a first threaded rod; 16. a second threaded rod; 17. a second chute; 18. a push-pull rod; 19. a second slider; 20. a rotating rod; 21. a writing area; 22. an L-shaped briquette; 23. a compression spring; 24. a flexible mat.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a macroscopic economics national economy circulation demonstration model comprises an explanation plate 2, a protection box 7 and a base 10, wherein four corners of the bottom end of the base 10 are fixedly connected with universal wheels 11, and the upper ends of two sides of the base 10 are provided with fixing structures 15;

the inside of the fixed structure 15 is sequentially provided with a movable plate 1501, an air bag 1502, a reset spring 1503, anti-slip suckers 1504, a fixed box 1505 and a first threaded rod 1506, wherein the fixed box 1505 is fixedly connected to two sides inside the base 10, the first threaded rod 1506 vertically penetrates through the middle position of the top end of the fixed box 1505, the movable plate 1501 is transversely and slidably connected inside the fixed box 1505 at the bottom end of the first threaded rod 1506, the anti-slip suckers 1504 vertically penetrate through two ends of the bottom end of the movable plate 1501, the air bag 1502 is fixedly connected to the middle position of the bottom end of the fixed box 1505, the reset spring 1503 is fixedly connected to two ends inside the air bag 1502, and two sides of the air bag 1502 are communicated with the inside of the anti-slip suckers;

specifically, as shown in fig. 1 and 2, when the structure is used, firstly, the first threaded rod 1506 is rotated, so that the movable plate 1501 descends to drive the anti-slip sucker 1504 to descend, and simultaneously the air bag 1502 is pressed to exhaust part of air in the air bag 1502, after the anti-slip sucker 1504 contacts the ground, the air bag 1502 is loosened, and under the action of the elastic force of the return spring 1503, the air bag 1502 is restored to the original shape, so that under the external atmospheric pressure, the anti-slip sucker 1504 generates negative pressure to generate suction force, and the stability of the device fixation is improved;

the middle position of the top end of the base 10 is fixedly connected with a storage box 8, two sides of the top end of the base 10 are vertically and fixedly connected with C-shaped vertical plates 9, the top end of each C-shaped vertical plate 9 is transversely and fixedly connected with a protection box 7, the middle position of the bottom end inside the protection box 7 is transversely and fixedly connected with a bottom plate 12, one side of the top end of the protection box 7 is fixedly hinged with a scissors lifting frame 6, and the top end of the scissors lifting frame 6 is transversely and fixedly hinged with a top plate 5;

a second sliding groove 17 is vertically formed in the upper ends of two sides in the protection box 7, a second sliding block 19 is connected to the inside of the second sliding groove 17 in a sliding mode, and one end of the second sliding block 19 is welded to one side of the top plate 5;

specifically, as shown in fig. 1, when this structure is used, first, the second slider 19 is slid inside the second slide groove 17, so that the up-and-down movement of the top plate 5 is more stable;

a first sliding groove 13 is transversely formed in one side of the inner part of the top plate 5 and one side of the inner part of the bottom plate 12, a first sliding block 14 is slidably connected in the first sliding groove 13, one end of the first sliding block 14 is hinged to one side of the top end and the bottom end of the scissors lifting frame 6 respectively, a second threaded rod 16 penetrating through the side wall of the protection box 7 is transversely and fixedly connected in the inner part of the bottom plate 12 on one side of the first sliding block 14, a fixed plate 4 is fixedly connected to one side of the top end of the top plate 5, and an adjusting structure 3 is arranged;

the adjusting structure 3 is internally provided with an adjusting hole 301, an adjusting rod 302 and an adjusting spring 303 in sequence, the adjusting rod 302 vertically penetrates through the top end of the fixing plate 4, the adjusting spring 303 is wound on the upper end of the surface of the adjusting rod 302, and the adjusting holes 301 matched with the adjusting rod 302 are uniformly formed in the fixing plate 4 on the surface of the rotating rod 20;

specifically, as shown in fig. 1 and 3, when the structure is used, firstly, the adjusting rod 302 is pulled to move to be completely separated from the adjusting hole 301, then the rotating rod 20 is rotated to deflect the explanation board 2, so that a student or a listener can watch the explanation board conveniently, and after the explanation board 2 deflects to a proper angle, the adjusting rod 302 is moved to be clamped into the adjusting hole 301 under the elastic force of the adjusting spring 303, so that the explanation board 2 is fixed after the angle is deflected;

a rotating rod 20 transversely penetrates through one side inside the fixed plate 4, an explanation plate 2 is fixedly connected to the surface of the rotating rod 20, and a writing area 21 is arranged at one end of one side of the explanation plate 2;

the upper end of the explanation board 2 far away from one end of the writing area 21 is transversely and fixedly connected with a flexible pad 24, and one end of the flexible pad 24 is uniformly and fixedly connected with a friction bulge;

specifically, as shown in fig. 2, when the structure is used, firstly, the flexible pad 24 is arranged, so that the support exists between the explaining plate 2 and the top plate 5 when the explaining plate is horizontally placed, and the friction between the explaining plate and the top plate is increased, so that the explaining plate is more stable when the explaining plate is horizontally placed;

one side of the explanation plate 2 close to one end of the writing area 21 is uniformly and fixedly connected with a fixed rod 1, one end of the surface of the fixed rod 1 is wound with a compression spring 23, and the surface of the fixed rod 1 at one end of the compression spring 23 is connected with an L-shaped pressing block 22 in a sliding manner;

specifically, as shown in fig. 1 and 2, when the structure is used, firstly, the L-shaped pressing block 22 is pushed to slide on the fixing rod 1 to compress the pressing spring 23, then, one end of the L-shaped pressing block 22 behind the paper or other non-magnetic demonstration object is moved by the elasticity of the pressing spring 23, and the demonstration object is fixed by the cooperation of the L-shaped pressing block 22 and the explaining plate 2;

the upper end of one side of the protection box 7 is fixedly connected with a push-pull rod 18.

The working principle is as follows: when the device is used, firstly, the push-pull rod 18 is pushed, the device is moved to a designated working place by using the universal wheel 11, then the first threaded rod 1506 is rotated, the movable plate 1501 slides in the fixed box 1505 to drive the anti-skid sucker 1504 to descend, meanwhile, the air bag 1502 is pressed, the reset spring 1503 deforms, and partial air in the air bag 1502 is exhausted through the guide pipe, after the anti-skid sucker 1504 is contacted with the ground, the air bag 1502 is loosened, under the elastic force action of the reset spring 1503, partial air sucked into the anti-skid sucker 1504 by the air bag 1502 is recovered to the original shape, so that the anti-skid sucker 1504 generates negative pressure under the external atmospheric pressure to generate suction, and the fixing stability of the device is improved;

then, a door body at the top end of the protection box 7 is opened, the second threaded rod 16 is rotated, the first sliding block 14 slides in the first sliding groove 13, the scissors lifting frame 6 is unfolded, meanwhile, the top plate 5 stably ascends by means of matching of the second sliding groove 17 and the second sliding block 19, the explanation plate 2 is lifted to the outside of the protection box 7, then the adjusting rod 302 is pulled, the adjusting rod 302 moves to stretch the adjusting spring 303 to be completely separated from the adjusting hole 301, the rotating rod 20 is rotated, the explanation plate 2 deflects, and is convenient for students or audiences to watch, after the explanation plate 2 deflects to a proper angle, the adjusting rod 302 is moved to be clamped into the adjusting hole 301 under the elastic force of the adjusting spring 303, and fixation after the explanation plate 2 deflects to the proper angle is realized;

the storage box 8 is opened, articles required for demonstration are taken out, part of magnetic demonstration articles are adsorbed on the surface of the explanation plate 2, the L-shaped pressing block 22 is shifted to enable the L-shaped pressing block 22 to slide on the fixing rod 1 to compress the pressing spring 23, then one end of the L-shaped pressing block 22 behind the paper or other non-magnetic demonstration articles is fixed by utilizing the elasticity of the pressing spring 23, the L-shaped pressing block 22 moves, the demonstration articles are fixed by matching with the explanation plate 2, meanwhile, the important contents of the demonstration can be written on the writing area 21, and the effect of the explanation demonstration is improved;

after the demonstration is accomplished, can take off the demonstration article on explanation board 2 surface, arrange storage tank 8 storage in, realize recycling, place roof 5 surfaces in after deflecting explanation board 2 again, later reverse rotation second threaded rod 16, place explanation board 2 inside protective box 7 is arranged in completely, avoid explanation board 2 to expose for a long time outside, lead to the surface deposition or receive external force and damage.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a model is demonstrated to macroscopic economy national economy circulation, includes explanation board (2), guard box (7) and base (10), its characterized in that: four corners of the bottom end of the base (10) are fixedly connected with universal wheels (11), the upper ends of two sides of the base (10) are respectively provided with a fixed structure (15), the middle position of the top end of the base (10) is fixedly connected with a storage box (8), two sides of the top end of the base (10) are vertically and fixedly connected with a C-shaped vertical plate (9), the top end of the C-shaped vertical plate (9) is transversely and fixedly connected with a protective box (7), the middle position of the inner bottom end of the protective box (7) is transversely and fixedly connected with a bottom plate (12), one side of the top end of the protective box (7) is fixedly hinged with a scissors lifting frame (6), the top end of the scissors lifting frame (6) is transversely and fixedly hinged with a top plate (5), one side of the inner parts of the top plate (5) and the bottom plate (12) is transversely provided with a first sliding chute (13), and the, the one end of first slider (14) is articulated with scissors crane (6) top and bottom one side respectively, and the inside horizontal fixedly connected with of bottom plate (12) of first slider (14) one side runs through second threaded rod (16) of guard box (7) lateral wall, one side fixedly connected with fixed plate (4) on roof (5) top, and the top of fixed plate (4) is provided with regulation structure (3), fixed plate (4) inside one side transversely runs through has bull stick (20), and the fixed surface of bull stick (20) is connected with explanation board (2), the one end of explanation board (2) one side is provided with writes district (21), the upper end fixedly connected with push-and-pull rod (18) of guard box (7) one side.

2. The macro-economics national economy cycle demonstration model of claim 1 wherein: the horizontal fixedly connected with flexible pad (24) in upper end that writing district (21) one end was kept away from in explanation board (2), and the even fixedly connected with friction of one end of flexible pad (24) is protruding.

3. The macro-economics national economy cycle demonstration model of claim 1 wherein: the explanation board (2) are close to even fixedly connected with dead lever (1) in one side of writing district (21) one end, and the one end on dead lever (1) surface all twines and has pressure spring (23), the equal sliding connection in dead lever (1) surface of pressure spring (23) one end has L type briquetting (22).

4. The macro-economics national economy cycle demonstration model of claim 1 wherein: adjust the inside of structure (3) and set gradually regulation hole (301), adjust pole (302) and regulating spring (303), adjust pole (302) vertical run through on the top of fixed plate (4), and the upper end winding on adjusting pole (302) surface has regulating spring (303), fixed plate (4) on bull stick (20) surface is inside evenly seted up and is adjusted pole (302) matched with regulation hole (301).

5. The macro-economics national economy cycle demonstration model of claim 1 wherein: second spout (17) have all vertically been seted up to the upper end of guard box (7) inside both sides, and the equal sliding connection in inside of second spout (17) has second slider (19), the one end of second slider (19) all welds with roof (5) one side.

6. The macro-economics national economy cycle demonstration model of claim 1 wherein: the fixed structure (15) is internally provided with a movable plate (1501), an air bag (1502), a return spring (1503), an anti-skidding sucker (1504), a fixed box (1505) and a first threaded rod (1506) in sequence, the fixed box (1505) is fixedly connected to two sides in the base (10), a first threaded rod (1506) vertically penetrates through the middle position of the top end of the fixed box (1505), a movable plate (1501) is transversely connected in a sliding way in a fixed box (1505) at the bottom end of the first threaded rod (1506), and the two ends of the bottom end of the movable plate (1501) are vertically penetrated with anti-skid suckers (1504), the middle position of the bottom end of the fixed box (1505) is fixedly connected with an air bag (1502), and both ends of the inner part of the air bag (1502) are fixedly connected with a return spring (1503), both sides of the air bag (1502) are communicated with the interior of the anti-slip sucker (1504) through a conduit.