CN203085025U - Swim bladder function demonstration device - Google Patents

Swim bladder function demonstration device Download PDF

Info

Publication number
CN203085025U
CN203085025U CN 201220688286 CN201220688286U CN203085025U CN 203085025 U CN203085025 U CN 203085025U CN 201220688286 CN201220688286 CN 201220688286 CN 201220688286 U CN201220688286 U CN 201220688286U CN 203085025 U CN203085025 U CN 203085025U
Authority
CN
China
Prior art keywords
bottle
water
bladder function
inflator
demonstration device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220688286
Other languages
Chinese (zh)
Inventor
梁云鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 201220688286 priority Critical patent/CN203085025U/en
Application granted granted Critical
Publication of CN203085025U publication Critical patent/CN203085025U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Instructional Devices (AREA)

Abstract

The utility model discloses a swim bladder function demonstration device comprising an experiment bottle prepared by plastic and filled with proper amount of water, a bottom cap, a plastic bottle floating in water and with air sealed in the bottle, a weight arranged below the plastic bottle and an inflator; two sides of a top of the bottle cap are respectively provided with an air outlet and an air inlet both connected inside the experiment bottle; a top of the air outlet is provided with a switch; and the air inlet is connected with the inflator. The swim bladder function demonstration device is simple in structure, and can scientifically and accurately demonstrate a principle of fish floating in water.

Description

Air bladder function presentation device
Technical field
The utility model relates to a kind of experimental teaching equipment, especially a kind of air bladder function presentation device.
Background technology
In primary school's science class, be used for demonstrating sink-float " Cartesian diver " teaching aid freely, form by the plastic bottle and the untight cap for brush.Its principle is: when squeeze bottle period of the day from 11 p.m. to 1 a.m cap for brush gas firmly is compressed, a part of water enters the cap for brush, causes " Cartesian diver " to arrange the smaller volume of water, is subjected to buoyancy and reduces, and it has just sunk; Otherwise when unclamping hand, the pressure of water reduces, and volume of air increases in the cap for brush, and the volume that " Cartesian diver " arranges water increases thereupon, is subjected to buoyancy and also increases, and it has just floated up.This teaching aid uses the cap for brush to open wide, and belongs to not closed state, and by the liquid of turnover, change arranges volume and realizes drifting along.
In teaching, when explaining the principle of work of submarine with " Cartesian diver ", explanation fish the moving about of also using in water.Even in junior middle school's grade eight bioconversion medium, the teacher can be interpreted as the principle of bionical air bladder when explaining the principle of work of submarine.This is unaccommodated in fact, is a kind of viewpoint of mistake, also can be described as a kind of scientific mistake.
Air bladder seals, and gas does not increase not minimizing yet in the fish glue.There is not the change of the water yield yet.Its sink-float impels the air bladder volume change to form by the variation of intraabdominal pressure.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of air bladder function presentation device simple in structure.
In order to solve the problems of the technologies described above, the utility model comprises that one is made of plastics and inner experiment bottle, a bottle cap, the enclose inside that suitable quantity of water is housed has gas and float over a weight and the inflator that plastic bottle, in the water is arranged on the plastic bottle bottom, both sides, described bottle cap upper end are respectively arranged with and test an inner gas outlet and the air intake opening that is connected of bottle, upper end, described gas outlet is provided with a switch, and described air intake opening is connected with described inflator.
Air bladder function presentation device of the present utility model is simple in structure, the principle of can the correct demonstration fish of science drifting along in water.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model air bladder function presentation device.
Embodiment
Referring to Fig. 1, air bladder function presentation device of the present utility model comprises that one is made of plastics and inner experiment bottle 1, a bottle cap 2, the enclose inside that suitable quantity of water is housed has gas and float over a weight 4 and the inflator 5 that plastic bottle 3, in the water is arranged on plastic bottle 3 bottoms, both sides, described bottle cap 2 upper end are respectively arranged with and test a gas outlet 6 and the air intake opening 7 that bottle 1 inside is connected, 6 upper ends, described gas outlet are provided with a switch 8, and described air intake opening 7 is connected with described inflator 5.
Principle of work of the present utility model is:
Described plastic bottle 3 can be simulated air bladder, weight 4 is equivalent to the weight of fish, when using inflator 5 in experiment bottle 1, to inflate, experiment bottle 1 internal pressure becomes big, plastic bottle 3 dwindles and sinks, behind the switch 8 of opening gas outlet 6, pressure slowly recovers normally in the experiment bottle 1, and plastic bottle 3 recovers normal and come-up gradually.
In sum, content of the present utility model is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present utility model, but these embodiment are included within the scope of the present utility model.

Claims (1)

1. air bladder function presentation device, it is characterized in that: comprise that one is made of plastics and inner experiment bottle (1), a bottle cap (2), the enclose inside that suitable quantity of water is housed has gas and float over a weight (4) and the inflator (5) that plastic bottle (3), in the water is arranged on plastic bottle (3) bottom, both sides, described bottle cap (2) upper end are respectively arranged with and test a gas outlet (6) and the air intake opening (7) that bottle (1) inside is connected, upper end, described gas outlet (6) is provided with a switch (8), and described air intake opening (7) is connected with described inflator (5).
CN 201220688286 2012-12-14 2012-12-14 Swim bladder function demonstration device Expired - Fee Related CN203085025U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220688286 CN203085025U (en) 2012-12-14 2012-12-14 Swim bladder function demonstration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220688286 CN203085025U (en) 2012-12-14 2012-12-14 Swim bladder function demonstration device

Publications (1)

Publication Number Publication Date
CN203085025U true CN203085025U (en) 2013-07-24

Family

ID=48830843

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220688286 Expired - Fee Related CN203085025U (en) 2012-12-14 2012-12-14 Swim bladder function demonstration device

Country Status (1)

Country Link
CN (1) CN203085025U (en)

Similar Documents

Publication Publication Date Title
CN203085025U (en) Swim bladder function demonstration device
CN201383255Y (en) Simple experimental demonstration vessel of atmospheric pressure equilibrium principle
CN103617759B (en) Buoyancy teaching demonstration instrument
CN201638429U (en) Device for demonstrating atmospheric pressure
CN202362984U (en) Demonstration instrument for water spray phenomenon inside negative air pressure flask
CN202126791U (en) Transpiration demonstrating device
CN202013687U (en) Device for demonstrating relationship between lung breathing and diaphragm movement
CN201126664Y (en) Teaching appliances for demonstrating submarine boat sink-float principle
CN201532722U (en) Air buoyancy demonstration instrument
CN204143713U (en) The all-round exploring instrument of buoyancy factor
CN201927251U (en) Gravity and buoyancy relation demonstrating instrument
CN203799542U (en) Buoyancy demonstration device
CN203070621U (en) Water pressure demonstration apparatus for physics teaching
CN205247750U (en) Tsunami teaching demonstration appearance
CN203179353U (en) Atmospheric pressure experiment demonstration instrument
CN202758520U (en) A demonstrator used for demonstrating relation between gravity and buoyancy
CN201955967U (en) Device for demonstrating density teaching
CN202189487U (en) Osmosis demonstration apparatus
CN201126668Y (en) Demonstration instrument for object sink-float and suspension
CN201812404U (en) Osmosis demonstration device
CN203386397U (en) Buoyancy formation cause exploration instrument
CN202996135U (en) Buoyancy demonstration instrument
CN201429920Y (en) Gravity and buoyancy relationship demonstration instrument
CN202948643U (en) Demonstrator for simulating ups and downs of fish
CN201111753Y (en) Submarines model

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
DD01 Delivery of document by public notice

Addressee: Liang Yunpeng

Document name: Notification to Pay the Fees

DD01 Delivery of document by public notice

Addressee: Liang Yunpeng

Document name: Notification of Termination of Patent Right

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130724

Termination date: 20141214

EXPY Termination of patent right or utility model