CN203480738U - Water buoyancy demonstrator for teaching - Google Patents
Water buoyancy demonstrator for teaching Download PDFInfo
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- CN203480738U CN203480738U CN201320607747.4U CN201320607747U CN203480738U CN 203480738 U CN203480738 U CN 203480738U CN 201320607747 U CN201320607747 U CN 201320607747U CN 203480738 U CN203480738 U CN 203480738U
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- teaching
- water
- transparent vessel
- cross bar
- buoyancy demonstrator
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Abstract
The utility model belongs to the technical field of teaching aid design and manufacture, and particularly to a water buoyancy demonstrator for teaching. The water buoyancy demonstrator comprises a base, columns, a transparent container and a water storage tank. The columns of the water buoyancy demonstrator are arranged on the base. The transparent container is arranged between the two columns. A drain plug is matched with a water discharging hole. The sidewall of the transparent container is provided with supporting boards. A cross bar penetrates through the supporting boards. Levers with holes are arranged on the cross bar and can slide on the cross bar. A shorter end of the arm-of-force of each lever is connected with an object through a connector. A water storage tank supporting frame is arranged between the supporting boards. The bottom of the water storage tank is provided with a water outlet pipe. The water buoyancy demonstrator for teaching has a reasonably designed structure. Visual and vivid effect for the effect of object by water buoyancy is obtained, so that the student can easily understand. High demonstration effect is obtained. Teaching quality on class is greatly improved.
Description
Technical field
The utility model belongs to design and the manufacturing technology field of teaching aid, particularly a kind of teaching buoyancy demonstrator.
Background technology
Existing five grades volume two of religion section version school science class the 6th class heavy and floating unit is about " object of sinking is subject to buoyancy of water ".Teaching material requires to prove that the object of sinking is subject to buoyancy of water with experiment.But the method for teaching material prompting is the object that is sunk in water, first weighs up airborne gravity, then puts into water, weighs up the gravity in water.By the comparative analysis of two data, illustrate that the object sinking has been subject to buoyancy of water.This abstract mode is told pupil, pupil is difficult to understand, although the method for teaching material prompting makes student can see that object has lightened in water, student can not can be subject to the strength to pop-up to the object sinking by clear understanding in water, and many students leave in the heart greatly and feel uncertain.Can design a kind of demonstration device to facilitate student's object that method is observed sinking intuitively under the effect of water, can leave container bottom, slowly rise, facilitate student to understand.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of teaching aid intuitively of Design and manufacture is demonstration device in other words, demonstrates intuitively the effect of water buoyancy, facilitates student to understand.
It is as follows that the utility model solves the problems of the technologies described above adopted technical scheme: teaching buoyancy demonstrator, comprise base, column, transparent vessel and water tank, two root posts of described water buoyancy demonstrator are fixedly installed on respectively on base, transparent vessel is arranged between two root posts, and drain plug matches with the osculum being arranged in transparent vessel lower wall; Fixed respectively on two sidewalls of transparent vessel two back up pads are being set; Cross bar is arranged between back up pad through two through holes corresponding to back up pad top; With porose lever, be arranged on cross bar and can on cross bar, slide; The shorter one end of lever arm of force is connected by web member and physical objects are vertical, and physical objects contacts with diapire in transparent vessel; Water tank bracing frame is fixed to be arranged between two back up pads, and the fixed bracing frame middle part that is arranged on of water tank, is arranging rising pipe in water tank bottom.
In practice, the object of sinking is subject to buoyancy of water demonstration device, is mainly used in school science class teaching demonstration heavy and floating unit and uses.A rectangular parallelepiped transparent plastic container for this demonstration device, puts into container by a solid plastic ball, rubber plug, one section of iron pipe (4 centimetres) physical objects, then three objects is hung in to the shorter one end of demonstration device lever arm of force.In air, the object of three kinds of different materials all leans against container bottom.In container, add clear water, can see that three kinds of objects all slowly float in water.The object that sinking is described with this has been subject to buoyancy of water.
The beneficial effects of the utility model: the utility model reasonable in design, the effect that is subject to buoyancy of water generation for object is more directly perceived, vivid, and student is easily understood, and demonstration effect is fine, has improved greatly the quality of instruction in classroom.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is the perspective view of the utility model embodiment 1.
Embodiment
Embodiment 1, teaching buoyancy demonstrator, as shown in Figure 1, comprise base 1, column 2, transparent vessel and water tank 10, two root posts 2 of described water buoyancy demonstrator are fixedly installed on respectively on base 1, transparent vessel is arranged between two root posts, and drain plug 6 matches with the osculum being arranged in transparent vessel lower wall; Fixed respectively on two sidewalls of transparent vessel two back up pads 7 are being set; Cross bar 11 is arranged between back up pad 7 through two through holes corresponding to back up pad 7 tops; With porose lever 8, be arranged on cross bar 11 and can on cross bar 11, slide; The shorter one end of lever 8 arm of forces is connected by web member and physical objects are vertical, and physical objects contacts with diapire in transparent vessel; Water tank bracing frame 9 is fixed to be arranged between two back up pads 7, and fixed bracing frame 9 middle parts that are arranged on of water tank, are arranging rising pipe 12 in water tank 10 bottoms.Described transparent vessel is for being circle or ellipse or rectangle.Described physical objects is solid plastic ball 5 and/or rubber plug 3 and/or iron pipe 4.Described web member is cord or thin wire.Unsettled fixed being arranged between column 2 of described transparent vessel.Described water tank 10 is circle or ellipse or rectangle.
Claims (6)
1. teaching buoyancy demonstrator, comprise base, column, transparent vessel and water tank, it is characterized in that: two root posts of described water buoyancy demonstrator are fixedly installed on respectively on base, transparent vessel is arranged between two root posts, and drain plug matches with the osculum being arranged in transparent vessel lower wall; Fixed respectively on two sidewalls of transparent vessel two back up pads are being set; Cross bar is arranged between back up pad through two through holes corresponding to back up pad top; With porose lever, be arranged on cross bar and can on cross bar, slide; The shorter one end of lever arm of force is connected by web member and physical objects are vertical, and physical objects contacts with diapire in transparent vessel; Water tank bracing frame is fixed to be arranged between two back up pads, and the fixed bracing frame middle part that is arranged on of water tank, is arranging rising pipe in water tank bottom.
2. teaching buoyancy demonstrator according to claim 1, is characterized in that: described transparent vessel is for being circle or ellipse or rectangle.
3. teaching buoyancy demonstrator according to claim 1, is characterized in that: described physical objects is solid plastic ball and/or rubber plug and/or iron pipe.
4. teaching buoyancy demonstrator according to claim 1, is characterized in that: described web member is cord or thin wire.
5. teaching buoyancy demonstrator according to claim 1, is characterized in that: unsettled fixed being arranged between column of described transparent vessel.
6. teaching buoyancy demonstrator according to claim 1, is characterized in that: described water tank is circle or ellipse or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607747.4U CN203480738U (en) | 2013-09-30 | 2013-09-30 | Water buoyancy demonstrator for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607747.4U CN203480738U (en) | 2013-09-30 | 2013-09-30 | Water buoyancy demonstrator for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203480738U true CN203480738U (en) | 2014-03-12 |
Family
ID=50229026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320607747.4U Expired - Fee Related CN203480738U (en) | 2013-09-30 | 2013-09-30 | Water buoyancy demonstrator for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203480738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911254A (en) * | 2016-06-02 | 2016-08-31 | 广西大学 | Dichotomy-based testing method for cohesive soil water buoyance reduction coefficient |
-
2013
- 2013-09-30 CN CN201320607747.4U patent/CN203480738U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911254A (en) * | 2016-06-02 | 2016-08-31 | 广西大学 | Dichotomy-based testing method for cohesive soil water buoyance reduction coefficient |
| CN105911254B (en) * | 2016-06-02 | 2019-01-01 | 广西大学 | The test method of cohesive soil water buoyancy reduction coefficient based on dichotomy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |