CN102831802A - Water spray phenomenon demonstrator in negative-pressure flask - Google Patents
Water spray phenomenon demonstrator in negative-pressure flask Download PDFInfo
- Publication number
- CN102831802A CN102831802A CN 201110164632 CN201110164632A CN102831802A CN 102831802 A CN102831802 A CN 102831802A CN 201110164632 CN201110164632 CN 201110164632 CN 201110164632 A CN201110164632 A CN 201110164632A CN 102831802 A CN102831802 A CN 102831802A
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- water
- flask
- water spray
- conduit
- spray
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Abstract
The invention relates to a water spray phenomenon demonstrator in a negative-pressure flask, which can be applied to the physics teaching of the junior and senior high schools. The invention aims to provide a teaching instrument for enabling students to directly observe the phenomenon. A rubber cork is plugged in a flask mouth in a common experiment; two holes are formed in the rubber cork, a conduit is inserted into the two holes respectively, and the conduits are communicated with the upper and lower containers; the upper container contains a certain amount of water; when the lower conduit is full of water, the lower container is put in; and since the water in water pipe flows downward under self weight, the gas in the flask generates negative pressure, and the water in the upper container continuously flows into multiple small holes on a water spray rubber nozzle in the flask under negative pressure through the conduits under the effect of atmosphere to spray water. The water spray phenomenon demonstrator provided by the invention has simple structure, low manufacturing cost and great ornamental value of water spray, is convenient to operate, avoids energy consumption and easily attracts the attention and interest of the students.
Description
Technical field:
The present invention relates to a kind of physics educational apparatus, can in the junior-senior high school physics teaching, use.
Background technology:
There is atmospheric pressure in earth surface; The people lives under the normal pressure but is anti-subtle after being accustomed to; The water surface that this instrument communicates owing to two pipes has difference in height to cause negative pressure in the flask, and being pushed down in atmospheric effect by the water in the higher water surface container becomes the water spray wonder in the flask.
Summary of the invention:
The objective of the invention is to use instrument in order to solve the teaching that can let the student observe directly phenomenon.
The object of the invention is realized through following technical scheme:
The flask mouth of common experiment usefulness is plugged with bottle closure of rubber; Being equipped with two holes on the bottle closure of rubber plugs conduit respectively and communicates with upper and lower two containers; A certain amount of water is housed in the upper container; Instantly the road conduit is put into down container after filling water, makes the gas in the flask produce negative pressure owing to the deadweight of water in the water pipe flows downward, and the water in the upper container constantly flows into through conduit under atmospheric effect and is in the flask under the negative pressure a plurality of apertures on the water spray rubber mouth and realizes water spray.
Method of application of the present invention is:
1, goes up filling part water in the surface vessel in two containers.
2, feed the interior fills with water of conduit of container down.
3, open feeding and go up the water injection through pipe switch in the surface vessel, promptly can be observed the water spray phenomenon in the flask.
Characteristics of the present invention and advantage have:
Simple in structure, cost of manufacture is low, and is easy to operate, energy free consumption, and the sight of water spray is strong, causes student's attention and interest easily.
Description of drawings:
This figure is a water spray phenomenon demonstrator structure synoptic diagram in the negative pressure flask
Label declaration among the figure:
(1) flask (2) rubber shower nozzle (3) is gone up water conduit (4) rubber plug (5) plastics basin (6) water inlet switch (7) water (8) water conduit (9) plastic flexible pipe (10) bucket down
Specific embodiments:
Further specify below in conjunction with accompanying drawing and how to realize:
1, the rubber plug on the flask is stamped two holes, is connected with conduit in two holes respectively, and one passes in the surface vessel, and another root passes to down in the surface vessel.
2, rubber plug and flask tight-lipped the connecting airtight that conduit will be housed, touch, and plastic flexible pipe is loaded onto in the downcomer lower end.
3, the upper and lower arrangement of two containers makes two containers that obvious difference in height arranged.
4, go up water filling in the surface vessel, as the water source of water spray, straight-through surface vessel down of another conduit and fills with water in this conduit.
5, open the water inlet pipe switch, the rubber shower nozzle can be sprayed water in the flask.
Claims (1)
1. water spray phenomenon demonstrator in the negative pressure flask is equipped with a nozzle in its flask, it is characterized in that the upper hose top is equipped with the rubber nozzle, and the identical small sircle hole of a plurality of diameters is arranged on the nozzle, can make the water of ejection form the fireworks display shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110164632 CN102831802A (en) | 2011-06-17 | 2011-06-17 | Water spray phenomenon demonstrator in negative-pressure flask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110164632 CN102831802A (en) | 2011-06-17 | 2011-06-17 | Water spray phenomenon demonstrator in negative-pressure flask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102831802A true CN102831802A (en) | 2012-12-19 |
Family
ID=47334906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110164632 Pending CN102831802A (en) | 2011-06-17 | 2011-06-17 | Water spray phenomenon demonstrator in negative-pressure flask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102831802A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702137A (en) * | 2016-04-14 | 2016-06-22 | 长安益阳发电有限公司 | Teaching aid of water resource energy conversion |
| CN106023741A (en) * | 2016-08-12 | 2016-10-12 | 湖南工学院 | Sandglass-type hero-of-alexandria fountain circulating demonstration instrument |
-
2011
- 2011-06-17 CN CN 201110164632 patent/CN102831802A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702137A (en) * | 2016-04-14 | 2016-06-22 | 长安益阳发电有限公司 | Teaching aid of water resource energy conversion |
| CN106023741A (en) * | 2016-08-12 | 2016-10-12 | 湖南工学院 | Sandglass-type hero-of-alexandria fountain circulating demonstration instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |