CN203405991U

CN203405991U - Gas suspended globe

Info

Publication number: CN203405991U
Application number: CN201320374201.9U
Authority: CN
Inventors: 郭云峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-18
Filing date: 2013-06-18
Publication date: 2014-01-22
Anticipated expiration: 2023-06-18

Abstract

The utility model relates to a teaching instrument, in particular to a gas suspended globe, which solves the problems of the prior art that the existing instrument cannot interestingly and vividly reveal the Bernoulli's principle, and furthermore the teaching quality of physics is affected. The gas suspended globe comprises a base; a round rotary drum which is arranged on the base and capable of flexibly rotating; a small blower which is arranged in the rotary drum and powered by an electric brush and a power supply contact ring; an electric bulb which is arranged on the top of a hollow rotating shaft and used for simulating the sun; a small driving motor which is arranged on one side of the rotary drum and used for driving the rotary drum to rotate. When the power switch of the blower is pushed, the blower in the rotary drum starts to work and the high-speed flowing air allows the globe on the air outlet of the blower to be suspended in the air; when the power switch of the driving small motor is pushed, the rotary drum starts to rotate, and the suspended globe synchronously rotates together with the air outlet on the rotary drum. The gas suspended globe has features of simple production technology and operation, reasonable structure, vivid and interesting demonstration effect, and facilitates to inspire student's learning interest and improves the teaching quality of physics.

Description

Gas suspension terrestrial globe

Technical field

The utility model relates to a kind of instruments used for education, is specially a kind of gas suspension terrestrial globe.

Background technology

Teaching aid is as the instrument of teacher's aided education, there is the irreplaceable effect of other means, classroom teaching is used the excellence of demonstration effect and interesting teaching aid in good time, can motivate students' interest in learning, the learning initiative of mobilizing students, outstanding focal points, break through teaching difficulty, optimize classroom structure, the ability of creative of Developing Students ', effectively improves the quality of teaching and efficiency.

In Middle School Physics teaching, existing instrument can not carry out the lecture experiment of vivid and interesting to the scientific knowledge of bernoulli principle at present, and the weak effect of demonstration is unfavorable for exciting student's interest and improves physics lesson quality of instruction.

Summary of the invention

The utility model can not carry out problem visual in image, vivid and interesting experimental demonstration in order to solve in present physical teaching course particularly teaching aid used in bernoulli principle chapters and sections, and a kind of gas suspension terrestrial globe is provided.

A kind of gas suspension terrestrial globe, comprise base (1), the circular rotating cylinder (3) of the upper device energy flexible rotating of base (1), device little hair-dryer (2) in it, the power supply of little hair-dryer is supplied with by brush, power supply contact ring (5), in the blank pipe of rotating shaft, there is wire to be connected with the hair-dryer power switch outside rotating cylinder, guaranteed the power supply supply at rotating cylinder rotary state blowing down blower fan, at the bulb (7) of the top of hollow rotating shaft (8) the unit simulation sun, in parallel with air blower circuit with the wire in rotating shaft blank pipe; At the driving small machine (12) of the two-way deceleration of one side of rotating cylinder device, in order to drive rotating cylinder to make it rotation; Press hair-dryer power switch (9), little hair-dryer (2) in rotating cylinder (3) is started working, the flow at high speed air that it produces is suspended in the terrestrial globe being placed on hair-dryer air outlet (4) in the air, and the bulb on rotating shaft top is shinny simultaneously; Press small machine power switch, rotating cylinder (3) starts rotation, is suspended in aerial terrestrial globe (6) and also follows hair-dryer air outlet (4) synchronous rotary on rotating cylinder (3).The utility model manufacture craft and simple to operate, rational in infrastructure, demonstration effect vivid and interesting, is convenient to excite students ' interest of study, improves physics lesson quality of instruction.

The utility model utilizes moving air can produce the bernoulli principle of negative pressure, with hair-dryer, blow terrestrial globe, terrestrial globe is suspended in the air, and with driving small machine, the rotating cylinder of device hair-dryer is rotated, being suspended in aerial terrestrial globe will be around luminous bulb running, demonstration effect vivid and interesting, visual in image, contribute to improve student's learning interest, excite student's creativity consciousness, student is expressly understood and grasps securely knowledge, its compact conformation, advantages of simple, flexible and convenient operation, preserve easy to carry, there is the impayable superiority of existing promulgated by the State Council instrument, have good value for applications.

Accompanying drawing explanation

Accompanying drawing is the utility model basic structure front plan view;

In figure: 1, base; 2, little hair-dryer; 3, rotating cylinder; 4, little hair-dryer air outlet; 5, brush, power supply contact ring; 6, the terrestrial globe suspending; 7, bulb (simulated solar); 8, rotating shaft; 9, hair-dryer power switch; 10, drive small machine power switch; 11, power lead; 12, drive small machine.

Embodiment

A kind of gas suspension terrestrial globe, comprise base (1), the circular rotating cylinder (3) of the upper device energy flexible rotating of base (1), device little hair-dryer (2) in it, the power supply of little hair-dryer is supplied with by brush, power supply contact ring (5), guaranteed the power supply supply at rotating cylinder (3) rotary state blowing down blower fan (2), at the top of hollow rotating shaft device bulb (7), in order to simulated solar, hollow rotating shaft has wire that hair-dryer and bulb and hair-dryer power switch are connected into parallel circuit; On one side of rotating cylinder, install the driving small machine (12) of two-way deceleration, in order to drive rotating cylinder to make it rotation; Press hair-dryer power switch (9), little hair-dryer (2) in rotating cylinder (3) is started working, swiftly flowing air is suspended in the terrestrial globe (6) being placed on hair-dryer air outlet (4) in the air, press and drive small machine power switch, rotating cylinder starts rotation, is suspended in aerial terrestrial globe (6) and also follows hair-dryer air outlet (4) synchronous rotary on rotating cylinder (3).The terrestrial globe suspending is around shinny bulb rotation, makes the experimental demonstration of the bernoulli principle very visual in image vivid and interesting that becomes.

Examination on experimental operation: 1, switch on power;

2, press hair-dryer power switch, terrestrial globe is suspended in the air by moving air at a high speed, and bulb is shinny simultaneously.

3, press and drive small machine power switch, rotating cylinder rotation, is suspended in aerial terrestrial globe and starts to circle around shinny bulb.

Claims

1. a gas suspension terrestrial globe, comprise base (1), the circular rotating cylinder (3) of the upper device energy flexible rotating of base (1), device little hair-dryer (2) in it, the power supply of little hair-dryer is supplied with by brush, power supply contact ring (5), in the blank pipe of rotating shaft, there is wire to be connected with the hair-dryer power switch outside rotating cylinder, guaranteed the power supply supply at rotating cylinder rotary state blowing down blower fan, at the bulb (7) of the top of hollow rotating shaft (8) the unit simulation sun, in parallel with air blower circuit with the wire in rotating shaft blank pipe; At the driving small machine (12) of the two-way deceleration of one side of rotating cylinder device, in order to drive rotating cylinder to make it rotation; Press hair-dryer power switch (9), little hair-dryer (2) in rotating cylinder (3) is started working, the flow at high speed air that it produces is suspended in the terrestrial globe being placed on hair-dryer air outlet (4) in the air, and the bulb on rotating shaft top is shinny simultaneously; Press small machine power switch, rotating cylinder (3) starts rotation, is suspended in aerial terrestrial globe (6) and also follows hair-dryer air outlet (4) synchronous rotary on rotating cylinder (3).