CN203597637U

CN203597637U - Map hanging device for teaching demonstration of economics

Info

Publication number: CN203597637U
Application number: CN201320836795.0U
Authority: CN
Inventors: 赵昭
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-18
Filing date: 2013-12-18
Publication date: 2014-05-21
Anticipated expiration: 2023-12-18

Abstract

A map hanging device for teaching demonstration of economics comprises a base and rolling wheels mounted on the lower portion of the base, and a first supporting rod and a second supporting rod are arranged on the base in sequence, are connected in an inserted mode and are locked through a locking nut. A first transverse rod is horizontally arranged at the top end of the second supporting rod, a third vertical supporting rod is connected to the first transverse rod, corresponding vertical sliding grooves are formed in the pipe walls of the left side and the right side of the third supporting rod respectively, a second transverse rod in sliding fit with the vertical sliding grooves is arranged in the vertical sliding grooves, and limiting plates are fixed to the positions, on the pipe walls of the outer walls of the left vertical sliding groove and the right vertical sliding groove, of the second transverse rod respectively. A spring ring and a second spring are arranged at the positions, in pipe cavities on the upper side and the lower side of the second transverse rod, of the third supporting rod respectively. The first transverse rod and the second transverse rod are respectively provided with a plurality of clamps. The map hanging device is simple in structure, convenient to operate, fast in movement and high in safety coefficient, and teaching quality of teachers and learning efficiency of students can be greatly improved.

Description

Teaching of Economics demonstration Map-hanging set

Technical field

The utility model relates to teaching aid field, particularly a kind of Teaching of Economics demonstration Map-hanging set.

Background technology

In the teaching process of economics class specialty, for vivider, show education informations to student intuitively, often need to carry out aided education by files such as some charts, pictures, common way is that chart or picture clip are fixed on blackboard, now just need several students wall chart simultaneously, and the operation of often need to ascending a height in the time that chart is larger, one has affected efficiency of teaching greatly, and two also there is certain potential safety hazard in it.

Utility model content

For above problem, the utility model provides a kind of Teaching of Economics demonstration Map-hanging set of simple in structure, easy to use, with low cost and safety and stability.

The technical solution of the utility model is: comprise base with and the roller of lower installation, the first support bar and the second support bar are installed on described base successively, and the two adopts inserting mode connect and lock by locking nut; The top level of the second described support bar is installed the first cross bar, on the first cross bar, connect the 3rd vertical support bar, on the tube wall of the left and right sides of the 3rd support bar, have the vertical chute of mutual correspondence, in vertical chute, the second cross bar being slidably matched with it is installed, about the second cross bar is positioned at, on the tube wall in vertical chute outside, is fixed respectively limiting plate; The tube chamber that described the 3rd support bar is positioned at the second cross bar upper and lower sides is installed respectively the first spring and the second spring, the top fixed dam of the 3rd support bar, and the upper end of the second spring and baffle plate against the top of, lower end and the second cross bar against, the bottom of the upper end of the first spring and the second cross bar against the top of, lower end and the first cross bar against; On the first described cross bar and the second cross bar, be equipped with multiple clips.

Such scheme can be more preferably:

Described the first cross bar and the second cross bar are Collapsible structure.

Two ends of the first described cross bar are respectively equipped with draw ring, and two ends of the second described cross bar are respectively equipped with drag hook, after described draw ring and drag hook are close, can hang and close.

Prior art is compared, and the utility model is simple in structure, easy to operate, fast mobile and safety coefficient is high, can increase substantially teacher's quality of instruction and student's learning efficiency.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

In figure: the 1st, roller, the 2nd, base, 3 is first support bars, the 4th, and locking nut, 5 is that the second support bar, 6 is first cross bars, the 7th, and clip, 8 is that the 3rd support bar, 9 is second cross bars, the 10th, baffle plate, the 11st, limiting plate, 12 is first springs, 13 is second springs, the 14th, drag hook, the 15th, draw ring.

The specific embodiment

Referring to Fig. 1, a kind of Teaching of Economics demonstration Map-hanging set, comprise base 2 with and the roller 1 of lower installation, the first support bar 3 and the second support bar 5 are installed on base 2 successively, and the two adopts inserting mode connect and lock by locking nut 4; The top level of the second support bar 5 is installed the first cross bar 6, on the first cross bar 6, connect the 3rd vertical support bar 8, on the tube wall of the left and right sides of the 3rd support bar 8, have the vertical chute of mutual correspondence, about being positioned at, the second cross bar 9, the second cross bars 9 that in vertical chute, installation is slidably matched with it fix respectively limiting plate 11 on tube wall in vertical chute outside; The 3rd support bar 8 is positioned at the tube chamber of the second cross bar 9 upper and lower sides the first spring 12 and the second spring 13 is installed respectively, the top fixed dam 10 of the 3rd support bar 8, and the upper end of the second spring 13 and baffle plate 10 against the top of, lower end and the second cross bar 9 against, the bottom of the upper end of the first spring 12 and the second cross bar 9 against the top of, lower end and the first cross bar 6 against; The first cross bar 6 and the second cross bar 9 are Collapsible structure, and on it, are equipped with multiple clips 7.Two ends that two ends of the first cross bar 6 are respectively equipped with draw ring 15, the second cross bars 9 are respectively equipped with drag hook 14, after draw ring 15 is close with drag hook 14, can hangs and close.

When use, first by pull, the second support bar 5 is transferred to the first support bar 3, reduce the whole height of device, then press down the second cross bar 9, it is moved down along the vertical chute on the 3rd support bar 8, now compressed, the second spring 13 of the first spring 12 launches, and moves down after putting in place and uses by drag hook 14, the draw ring 15 of both sides and coordinate the first cross bar 6 and the relative locking of the second cross bar 9; Four jiaos of chart or picture are fixed on the first cross bar 6 and the second cross bar 9 by clip 7 respectively, then the extension of removing drag hook 14, draw ring 15 closes state, the second cross bar 9 moves on the vertical chute in edge under the elastic force effect of the second spring 13, now the top of chart or picture is also moved on together, when chart or picture are all unfolded after stretching, the second cross bar 9 stops mobile.Limiting plate 11 is for preventing the transverse shifting of the second cross bar 9, and baffle plate 10 comes off from the top of vertical chute for preventing the second cross bar 9.Finally by pull by the second support bar 5 by stretching out in the first support bar 3, adjust behind suitable position and lock with locking nut 4.

Claims

1. a Teaching of Economics demonstration Map-hanging set, is characterized in that: comprise base with and the roller of lower installation, the first support bar and the second support bar are installed on described base successively, and the two adopts inserting mode connect and lock by locking nut; The top level of the second described support bar is installed the first cross bar, on the first cross bar, connect the 3rd vertical support bar, on the tube wall of the left and right sides of the 3rd support bar, have the vertical chute of mutual correspondence, in vertical chute, the second cross bar being slidably matched with it is installed, about the second cross bar is positioned at, on the tube wall in vertical chute outside, is fixed respectively limiting plate; The tube chamber that described the 3rd support bar is positioned at the second cross bar upper and lower sides is installed respectively the first spring and the second spring, the top fixed dam of the 3rd support bar, and the upper end of the second spring and baffle plate against the top of, lower end and the second cross bar against, the bottom of the upper end of the first spring and the second cross bar against the top of, lower end and the first cross bar against; On the first described cross bar and the second cross bar, be equipped with multiple clips.

2. Teaching of Economics demonstration Map-hanging set as claimed in claim 1, is characterized in that: described the first cross bar and the second cross bar are Collapsible structure.

3. Teaching of Economics demonstration Map-hanging set as claimed in claim 1 or 2, it is characterized in that: two ends of the first described cross bar are respectively equipped with draw ring, two ends of the second described cross bar are respectively equipped with drag hook, after described draw ring and drag hook are close, can hang and close.