CN2322203Y

CN2322203Y - Wind vane teaching appliance

Info

Publication number: CN2322203Y
Application number: CN 98202573
Authority: CN
Inventors: 徐万茂
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-23
Filing date: 1998-03-23
Publication date: 1999-06-02
Anticipated expiration: 2008-03-23

Abstract

The utility model relates to a wind vane teaching appliance, which comprises a base 1, an upright post 2, a wind vane 5, and empennages 3. The utility model is characterized in that the base 1 is provided with a tongue-and-groove 9; the upright post 2 is connected with the tongue-and-groove 9 on the base by a rabbet 10 on the lower end of the upright post; two empennages 3 is connected with a tongue-and-groove on the wind vane 5 by a rabbet on the empennages; the wind vane 5 and the empennages 3 are sheathed on the steel shaft 4 of the upright post 2 through axle holes 7. The utility model has the advantages of simple structure, convenient operation, and low cost. The utility model is an ideal learning tool for pupils.

Description

Wind vane teaching appliance

The utility model relates to teaching aid, the Wind vane teaching appliance that especially a kind of suitable pupil uses.

Teaching aid can make the student deeply understand the content of courses taken, cultivates students'ability for practice and problem-solving ability.But because existing teaching aid more complicated, cost of manufacture is than higher, can only be for the teacher as teaching aid to student's demonstration, the student can not start, and is unfavorable for that the student deeply understands and consolidates content, and students'ability for practice and problem-solving ability are cultivated in inconvenience.Especially lack the schooling apparatus that uses for the pupil at present.

The purpose of this utility model is this problem of schooling apparatus of taking action on one's own to use for students in middle and primary schools at lacking at present, the Wind vane teaching appliance that provide a kind of simple structure, be convenient to mounting or dismounting, cost is low, makes things convenient for students in middle and primary schools, especially pupil to use.

Wind vane teaching appliance described in the utility model comprises base, column, weathercock and empennage.Have tongue-and-groove on the base.Column lower end is shaped on tenon, and the upper end is fixed with the steel axle.Weathercock is arrow-shaped, and the rear portion has axis hole, and both sides are shaped on tongue-and-groove.Empennage is two, and respectively there is a tenon its inboard.Column joins by the tenon of lower end and the tongue-and-groove on the base.Two empennages join by tenon on it and the tongue-and-groove on the weathercock.Weathercock is contained on the steel axle of column by shaft hole sleeve together with empennage.

During experiment, the student does it yourself each part is assembled into weathervane, requires weathercock can rotate flexibly on the steel axle.Measure local wind direction in continuous several days with the weathervane that assembles and change, and carry out record, draw the wind direction that often blow locality, season at that time.This experiment can be cultivated the ability of students'ability for practice and record, analysis result.

The utility model simple structure, easy to operate, cost is low, is comparatively ideal pupil's schooling apparatus.

Fig. 1 is a structural map of the present utility model;

Fig. 2 is the front view of weathercock;

Fig. 3 is the A-A cut-open view of Fig. 2;

Fig. 4 is the attached view of Fig. 2;

Fig. 5 is the stereographic map of empennage;

Fig. 6 be base stereographic map;

Fig. 7 be column stereographic map.

The utility model is described in further detail below in conjunction with accompanying drawing:

As shown in Figure 1, Wind vane teaching appliance described in the utility model comprises base 1, column 2, weathercock 5 and empennage 3.As shown in Figure 6, have tongue-and-groove 9 on the base 1.As shown in Figure 7, column 2 lower ends are shaped on tenon 10, and the upper end is fixed with steel axle 4.As Fig. 2-shown in Figure 4, weathercock 5 is arrow-shaped, and the rear portion has axis hole 7, and both sides are shaped on tongue-and-groove 6.As shown in Figure 5, empennage 3 is two, and respectively there is a tenon 8 its inboard.Column 2 joins by the tenon 10 of lower end and the tongue-and-groove 9 on the base 1.Two empennages 3 join by the tongue-and-groove 6 on tenon on it 8 and the weathercock 5.Weathercock 5 is sleeved on the steel axle 4 of column 2 by axis hole 7 together with empennage 3.

Claims

1, a kind of Wind vane teaching appliance is characterized in that: comprise base, column, weathercock and empennage; Have tongue-and-groove on the base; Column lower end is shaped on tenon, and the upper end is fixed with the steel axle; Weathercock is arrow-shaped, and the rear portion has axis hole, and both sides are shaped on tongue-and-groove; Empennage is two, and respectively there is a tenon its inboard; Column joins by the tenon of lower end and the tongue-and-groove on the base; Two empennages join by tenon on it and the tongue-and-groove on the weathercock; Weathercock is contained on the steel axle of column by shaft hole sleeve together with empennage.