CN2142593Y

CN2142593Y - Discrimination of contour map and principle demonstrative model

Info

Publication number: CN2142593Y
Application number: CN 92236669
Authority: CN
Inventors: 张泽昕; 崔海玉
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-12
Filing date: 1992-10-12
Publication date: 1993-09-22
Anticipated expiration: 2002-10-12

Abstract

The utility model belongs to a geographical demonstrative teaching aid which is composed of a framework, a landscape drawing board, a topographic profile drawing board and a drawing board which can be folded into a model. The utility model has the key point that the model can be evolved into a three-dimensional isohypse reading model form a plane isohypse hypsometric map through operating an operating lever, and the three-dimensional isohypse reading model can be matched with a topographical profile map and a topographical landscape map. The utility model can visually demonstrate and changes abstract objects to concrete objects to cause the principle of the isohypse hypsometric map to be obvious. The utility model is suitable for being popularized and used in universities, middle schools and primary schools of China.

Description

Discrimination of contour map and principle demonstrative model

The utility model belongs to a kind of geographical demonstration teaching aid.

" the hypsographic map interpretation model " that uses in the teaching of China universities, middle and primary schools is a kind of changeless stereoscopic model at present, can not demonstrate its principle, also not having geomorphologic landscape contrasts, student's results of learning are very undesirable, and model heaviness, use inconvenience, this old-fashioned teaching aid can not adapt to current teaching needs far away.

The utility model purpose provides a kind of improved, develops into three-dimensional level line interpretation model by the plane hypsographic map, can contrast with topographical profile graph and landform landscape.

The utility model mainly contains framework (1), view chart board (3), topographic profile chart board (4), can fold model chart board (5), operation panel (6), elastic profile line (9), liftable metal level line (10), telescopic elevation post (11), high scale (12), operating rod (13) combines, key is that framework (1) rear side both sides have two chutes to insert a view chart board (3) and another piece from top to bottom respectively and are connected and become one by rolling over soft material, topographic profile chart board (4), can roll over model chart board (5), can fold model chart board (5) and can fold into an angle of 90 degrees forward; The level line schematic diagram divides two parts (Fig. 2) up and down.The first half is the topographical profile graph of land Gao Haishen, draws the level line layer colours topomap of Lower Half by dotted line, is plotted in chart board (4) respectively, above (5); Can fold be equipped with on the model chart board (5) with hypsographic map in the level line consistent liftable metal level line (10) that coincide, many telescopic elevation posts (11), scalable high scale (14), by a resilient topographic profile line (9), connect many elevation posts (11), metal level line (10) and scalable high scale (12) penetrate chart board (5) and are connected with operating rod (13).During use, if operating rod is released forward, each bar level line rises according to different separately elevations, just form level line relief model (Fig. 3), as retract operating rod and can form planar graph (Fig. 2, Fig. 4), elevation post (11) and operating rod (13) are collected in the operation panel (6) at the framework back side, open case lid during use, operating rod is released forward, again the model chart board slightly being mentioned the framework kerve releases forward, gliding is converted into 90 with sectional view and spends parallelly with desktop, and three-dimensional relief block is corresponding with sectional view, occurs landscape map simultaneously and contrast (Fig. 3) below sectional view, the time spent is not mentioned the model chart board, retract operating rod, the level line of stereoscopic model is got back to the plane and is reduced into planimetric map, covers case lid and gets final product.

Advantage of the present utility model is, can make model by the plane hypsographic map by the manipulation bar, and developing becomes three-dimensional level line interpretation model, and contrasts with topographical profile graph and landform landscape figure three.Demonstration that can be vivid becomes specifically abstract, and the hypsographic map principle is come into plain view, and this teaching aid is rationally novel in design, makes simply, and is cheap, is suitable for promoting the use of in China universities, middle and primary schools.

Description of drawings:

Fig. 1, be the utility model frame diagram

Fig. 2, be the utility model level line landform schematic diagram

Fig. 3, be the utility model model, section view, three contrast figure

Fig. 4, be the utility model elevation post and operating rod synoptic diagram

(1) framework (2) chute (3) view chart board (4) topographic profile chart board (5) can fold model chart board (6) operation panel (7) kerve (8) but the high scale of the telescopic elevation post of broken line (9) elastic profile line (10) liftable metal level line (11) (12) (13) operating rod.

Embodiment:

The utility model manufacturing materials can be selected for use: timber, tinsel, elasticity degree of tightness lines, plastics.

Rectangular frame (1) specification (70 * 60) cm, there is chute on framework rear side both sides, there are kerve (7), view chart board (3) specification (68 * 58) cm in the below, insert framework second chute, topographic profile chart board (4), specification are (68 * 19) cm, can roll over model chart board (5) specification and be (68 * 39) cm, roll over soft material again and be connected and be one, insert article one chute.Chart board (5) can be rolled over and an angle of 90 degrees can be folded into forward.Liftable metal level line (10) and many telescopic elevation posts (11) made with the ferrous metal iron wire are installed on the chart board (5), scalable high scale (14), connect elevation post (11) by an elasticity landform profile line (9), metal level line (10) and scalable high scale (12) penetrate chart board (5) and are connected with operating rod (13).

Claims

1, a kind of hypsographic map interpretation and principle demonstration model by framework (1), view chart board (3), topographic profile chart board (4), can fold model chart board (5) and constitute, it is characterized in that:

There are two chutes on a, framework (1) rear side both sides, can insert view chart board (3) from top to bottom respectively and be connected and become one, topographic profile chart board (4), can roll over model chart board (5), can fold model chart board (5) and can fold into an angle of 90 degrees forward by rolling over soft material;

B, level line schematic diagram divide two parts up and down, and the first half is the topographical profile graph of land Gao Haishen, draw the level line layer colours topomap of Lower Half by dotted line, are plotted in chart board (4) respectively, above (5);

C, can fold be equipped with on the model chart board (5) with hypsographic map in level line coincide consistent liftable metal level line (10), many telescopic elevation posts (11), scalable high scale (14), by a resilient topographic profile line (9) connection many telescopic elevation posts (11), metal level line (10) and scalable high scale (12), penetrating chart board (5) is connected with operating rod (13), release operating rod and can form the level line relief model, retract operating rod and can form planar graph.