Ocean current demonstration device for geography teaching

Abstract

The invention discloses an ocean current demonstration device for geography teaching. The ocean current demonstration device comprises a housing, a mounting hole is arranged at top of an outer wall atthe left side of the housing, a circumferential wall of the mounting hole is provided with a blower, a heating resistor disk is disposed on the left side of the inner wall of the bottom of the housing, the two sides of the inner wall of the bottom of the housing are provided with equidistantly distributed ribbons, two drain holes are opened in the middle of the inner wall of the bottom of the housing, a drain pipe with a Y-shaped structure is arranged at a middle position of the outer wall of the bottom of the housing, a fixing groove is provided at the middle position of the inner wall of the bottom of the housing. The ocean current demonstration device does not need to manually drop ink, is convenient and easy to operate, avoids the situation that the ink is squeezed to the top of an ink storage bag and is difficult to drip, ensures accurate ink discharge, ensures that the current flow direction during the demonstration is not affected by the current when a baffle plate moves, ensures the authenticity of the demonstration, ensures the tightness of the two demonstration areas, prevents water circulation in the two areas, and improves the accuracy of the demonstration.

Description

technical field [0001] The invention relates to the field of education technology, in particular to an ocean current demonstration device for geography teaching. Background technique [0002] Ocean currents are also known as ocean currents. In addition to the tidal movement caused by tidal forces in the ocean, the large-scale flow of seawater along a certain path is mainly driven by wind, or the uneven density distribution of seawater caused by thermal-salinity effects. sex. According to different causes of formation, ocean currents can be divided into three types: aeolian currents, density currents, and compensation currents. In geography teaching, when teachers explain the formation process and influencing factors of ocean currents, they can only describe them orally because there are no teaching aids, and the teaching is not intuitive enough. [0003] After retrieval, the Chinese patent application number is CN206388397U, which discloses a teaching and demonstration devi...

AI Technical Summary

Problems solved by technology

An ocean current teaching demonstration device in the above-mentioned patent has the following deficiencies: 1. There is an error in judging the flow direction of the ocean current through the movement of the floating ball, and there is also the problem of inconvenient operation by injecting inks of different colors into the two demonstration areas. ;2. During the demonstration, the water in the two demonstration areas is currently circulated by pulling out the baffle. When the baffle is pulled out, the baffle drives the water flow and affects the demonstration accuracy.

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