CN2837963Y

CN2837963Y - Archimedes' law demonstrator

Info

Publication number: CN2837963Y
Application number: CN 200520087871
Authority: CN
Inventors: 陈晨; 陈元章
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-10-10
Filing date: 2005-10-10
Publication date: 2006-11-15
Anticipated expiration: 2015-10-10

Abstract

The utility model discloses an Archimedes' law demonstrator, which belongs to a physical teaching demonstrator, particularly a dynamics demonstrator. The demonstrator comprises a base, a vertical prop, a transverse beam, a spring scale, a lifting hook, experimental weight bodies, a water groove and a measuring cup. The utility model has the structure that a suspended cup is arranged between the spring scale and the hook, an object carrying rack arranged on the vertical prop can be elevated, the water groove is arranged on the object carrying rack and an overflow pipe is arranged in the water groove. Because the overflow pipe is arranged in the water groove, the utility model can conveniently and correctly collect overflow water, and thus the Archimedes' law can be visually and correctly demonstrated. The equipment is simple to manufacture and is suitable for teaching in junior middle schools.

Description

The Archimedes' principle demonstration device

Affiliated technical field

The utility model belongs to a kind of physics teaching demonstration instrument, particularly mechanics demonstration instrument.

Background technology

Often use equipment such as iron stand, spring balance, spilling water groove to form demonstration device in order to demonstrate Archimedes' principle in physics teaching in secondary school, though can play the demonstration effect, the water that the spilling water groove overflows is not easy accurate collection, often demonstrates weak effect.

Summary of the invention

The purpose of this utility model provides the technical scheme that a kind of convenience is collected the novel Archimedes' principle demonstration device that overflows water accurately.

The technical solution of the utility model is, a kind of Archimedes' principle demonstration device, comprise, base, column, crossbeam, spring balance, suspension hook, test weight, tank, measuring cup, its structure is: be equipped with between spring balance and suspension hook and hang cup, be installed on the liftable luggage carrier on the column and placing tank, overflow pipe is housed in the tank.

Described overflow pipe is derived by bottom of gullet or from the tank side.

When using this demonstration device, read the reading of spring balance when not putting the experiment weight, hang up weight and read the reading of spring balance again, dress water is to just beginning to overflow from overflow pipe in the tank, the liftable luggage carrier that tank is being placed in lifting progressively will be tested weight and be entered in the water and measuring cup to be connected on the overflow pipe lower end, this is to find out that the volume along with weight immersion water increases the buoyancy increase that weight is subjected to from the reading of spring balance, after weight immerses in the water fully, the reading of spring balance is still constant even sink again, water in the measuring cup is poured into when hanging the reading that can see spring balance in the cup and not immersing water with weight identical, thereby the buoyancy that allows the student recognize that object is subjected in liquid is identical with the weight of the liquid of discharge.

The Archimedes' principle demonstration device that provides of the present utility model has been owing to installed overflow pipe in tank, the water that can make things convenient for collections accurately to overflow, and image is demonstrated Archimedes' principle accurately, and equipment is easy to make and is fit to junior middle school's teaching use.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model,

Fig. 2 is the partial schematic diagram of another installation method of overflow pipe in the tank.

Among the figure, 1. column, 2. crossbeam, 3. spring balance 4. hangs cup, 5. suspension hook, 6. weight, 7. tank, 8. overflow pipe, 9. liftable luggage carrier, 10. measuring cup, 11. bases.

Embodiment

Embodiment of the present utility model is, as shown in the figure:

Embodiment 1, a kind of Archimedes' principle demonstration device, comprise, base 11, column 1, crossbeam 2, spring balance 3, suspension hook 5, test weight 6, tank 7, measuring cup 10, its structure is: be equipped with between spring balance and suspension hook and hang cup 4, be installed on the liftable luggage carrier 9 on the column and placing tank, be equipped with in the tank by bottom of gullet and derive overflow pipe 8.

Embodiment 2, a kind of Archimedes' principle demonstration device, comprise, base 11, column 1, crossbeam 2, spring balance 3, suspension hook 5, test weight 6, tank 7, measuring cup 10, its structure is: be equipped with between spring balance and suspension hook and hang cup 4, be installed on the liftable luggage carrier 9 on the column and placing tank, be equipped with in the tank by the tank side and derive overflow pipe 8.

Claims

1. Archimedes' principle demonstration device, comprise that base, column, crossbeam, spring balance, suspension hook, test weight, tank, measuring cup is characterized in that: between spring balance and suspension hook, be equipped with and hang cup, be installed on the liftable luggage carrier on the column and placing tank, overflow pipe is housed in the tank.

2. Archimedes' principle demonstration device according to claim 1 is characterized in that: described overflow pipe is derived by bottom of gullet or from the tank side.