CN204215629U - A kind of for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum - Google Patents
A kind of for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum Download PDFInfo
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- CN204215629U CN204215629U CN201420671158.7U CN201420671158U CN204215629U CN 204215629 U CN204215629 U CN 204215629U CN 201420671158 U CN201420671158 U CN 201420671158U CN 204215629 U CN204215629 U CN 204215629U
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Abstract
The utility model discloses a kind of for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, comprising: tank; Vacuum tank; The Upper vertical of described vacuum tank connects a common excretory duct, described common excretory duct upper end extends to form the first arm and the second arm, described first arm and the second arm are respectively arranged with the first valve and the second valve, and described first arm and the second arm are divided into arc section and vertical section; Described first arm is transparent pipe, and tank is stretched in the vertical section lower end of described first arm, and enters below surface level; The vertical section of described second arm is provided with a piston, and described piston hangs a pallet by suspension hook, in order to accept counterweight; Wherein, the cross section of described common excretory duct is rectangle, and its position near described vacuum tank is provided with a water wheeler, and the turning axle of described water wheeler is connected with a generator through described common excretory duct, and described generator is a bulb powered by wire.The utility model is interesting by force, function is many.
Description
Technical field
The invention belongs to instruments used for education field, particularly a kind of for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum.
Background technology
In the education of middle and primary schools stage, physics lesson to tell about atmospheric pressure and pull of vacuum, because atmospheric pressure cannot see impalpable, must demonstrate by certain device.Common way is use water tumbler, is covered by the water cup mouth glass sheet filling water at, holds glass sheet demonstrate atmospheric existence by atmospheric pressure.This method material is easy to get, simple to operate.But regrettably, in this experiment, student can not experience the energy that atmospheric pressure brings truly, dynamic is inadequate, interesting not enough, nor can calculate atmospheric value.
Summary of the invention
Based on above-mentioned deficiency, the present invention has designed and developed that a kind of interest is strong, function is many for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum.
Technical scheme provided by the invention is:
For the atmospheric pressure of education experiment and an apparatus for demonstrating for pull of vacuum, comprising:
Tank, it is arranged in a L bracket, and for storing water, and tank is at the height adjustable of vertical direction;
Vacuum tank, its side is provided with hand-operated vacuum-pumping device, and opposite side is provided with drainpipe; The Upper vertical of described vacuum tank connects a common excretory duct, described common excretory duct upper end extends to form the first arm and the second arm, described first arm and the second arm are respectively arranged with the first valve and the second valve, and described first arm and the second arm are divided into arc section and vertical section; Described first arm is transparent pipe, and tank is stretched in the vertical section lower end of described first arm, and enters below surface level; The vertical section of described second arm is provided with a piston, and described piston hangs a pallet by suspension hook, in order to accept counterweight;
Wherein, the cross section of described common excretory duct is rectangle, and its position near described vacuum tank is provided with a water wheeler, and the turning axle of described water wheeler is connected with a generator through described common excretory duct, and described generator is a bulb powered by wire; In the middle part of described common excretory duct, inwall is provided with drainage plate, described drainage plate and vertical direction are 30-70 degree angle, and the cross section of described drainage plate is arc, and it is in directly over described water wheeler turning axle bottom.
Preferably, described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, described water is red ink.
Preferably, described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, the width of blade of described water wheeler is slightly less than described common excretory duct cross-sectional width, and the length of described blade is slightly less than 1/2nd of described common excretory duct cross-sectional length.
Preferably, described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, described blade surface is curved, and radian is 40-60 degree.
Preferably, described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, the vertical section of described second arm is provided with scale, and the vertical section of described second arm is provided with limited block bottom.
Preferably, described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, described piston cross-sectional area be 2-3 square centimeter.
Preferably, described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, described hand-operated vacuum-pumping device is positioned at described vacuum tank one upper lateral part, and described drainpipe is positioned at described vacuum tank opposite side bottom.
Preferably, described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, described drainpipe is provided with the 3rd valve.
Beneficial effect of the present invention: (1) uses the present invention, and student can experience atmospheric strength truly, can generate electricity, and also can recommend weight.(2) in the present invention, water, under the effect of pull of vacuum, enters vacuum tank by tank, water slug water wheeler, and drive electrical generators generates electricity, and makes bulb luminous, dynamically shows pull of vacuum to student, interesting strong.(3) use the present invention can calculate atmospheric pressure intensity values, and hydropower process can also be demonstrated, more with better function than traditional device for demonstrating atmospheric pressure.
Accompanying drawing explanation
Fig. 1 is the structural representation for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum of the present invention.
Fig. 2 is the structural representation of water wheeler of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to instructions word to make those skilled in the art.
As depicted in figs. 1 and 2, the invention provides a kind of for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, comprising:
Tank 5, it is arranged in a L bracket, and for storing water, and tank 5 is at the height adjustable of vertical direction;
Vacuum tank 1, its side is provided with hand-operated vacuum-pumping device 13, and opposite side is provided with drainpipe 14; The Upper vertical of described vacuum tank 1 connects a common excretory duct 2, described common excretory duct 2 upper end extends to form the first arm 3 and the second arm 4, described first arm 3 and the second arm 4 are respectively arranged with the first valve 11 and the second valve 12, and described first arm 3 and the second arm 4 are divided into arc section and vertical section; Described first arm 3 is transparent pipe, and tank 5 is stretched in the vertical section lower end of described first arm 3, and enters below surface level; The vertical section of described second arm 4 is provided with a piston 9, and a pallet 10 is hung by suspension hook in described piston 9 lower end, in order to accept counterweight 15;
Wherein, the cross section of described common excretory duct 2 is rectangle, and its position near described vacuum tank 1 is provided with a water wheeler 6, and the turning axle of described water wheeler 6 is connected with a generator 7 through described common excretory duct 2, and described generator 7 is that a bulb 8 is powered by wire; In the middle part of described common excretory duct 2, inwall is provided with drainage plate 16, described drainage plate 16 is 30-70 degree angle with vertical direction, and the cross section of described drainage plate 16 is arc, and it is in directly over described water wheeler 6 turning axle bottom.
Tank 5 for storing water, the height that tank 5 height adjustable can allow student understand air pressure energy water extraction to be risen.Vacuum tank 1, for the formation of vacuum, produces pull of vacuum, and hand-operated vacuum-pumping device 13 is for extracting out the air in vacuum tank 1, and drainpipe 14 is discharged for the water that will enter in vacuum tank 1.First arm 3 stretches into below the water surface of tank 5, and after vacuum tank 1 forms vacuum, the second valve 12 is closed, and the first valve 11 is opened, and water can be inhaled into vacuum tank from the first arm 3.First arm 3 is designed to transparent, is convenient to the flowing of observation of students water.Piston 9 lower end is placed with the pallet 10 of counterweight 15 by suspension hook hanging, after vacuum tank 1 forms vacuum, the second valve 12 is opened, and the first valve 11 is closed, piston 9 can drive pallet 10 and counterweight 15 to move straight up, can calculate atmospheric pressure intensity values according to the move distance of piston 9 and counterweight 15 quality.
Water, can through common excretory duct 2 when entering vacuum tank 1, water impact water wheeler 6, and water wheeler 6 drive electrical generators 7 generates electricity, and generator 7 makes bulb 8 luminous.Drainage plate 16 makes current impact water wheeler 6 from a direction, and water wheeler 6 is only rotated to a direction, and when drainage plate 16 and vertical direction are 30-70 degree angle, the impact effect of water to water wheeler 6 is better.Arc section makes drainage plate 16 that current can be made more concentrated, increases the impact effect of water.Being in bottom directly over described water wheeler 6 turning axle of drainage plate 16, makes current only have impact to water wheeler 6 impeller of side.
Described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, described water is red ink.Red ink is better obvious, is convenient to observation of students.
Described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, the width of blade of described water wheeler 6 is slightly less than described common excretory duct 2 cross-sectional width, and the length of described blade is slightly less than 1/2nd of described common excretory duct 2 cross-sectional length.Such setting, makes blade obtain water impact as far as possible, and water can be fully used.
Described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, described blade surface is curved, and radian is 40-60 degree.Surface arc shaped blade increases the area bearing water impact, improves waterpower utilization rate.
As shown in Figure 2, described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, the vertical section of described second arm 4 is provided with scale, and the vertical section of described second arm 4 is provided with limited block bottom.Limited block is used for preventing piston 9 from skidding off from the second arm 4, the height that scale rises for showing slide block, for calculating atmospheric pressure intensity values.
Described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, described piston 9 cross-sectional area be 2-3 square centimeter.When the cross-sectional area of piston 9 is 2-3 square centimeter, the moderate pressure that piston 9 surface is subject to, is convenient to calculate atmospheric pressure.
As shown in Figure 1, described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, described hand-operated vacuum-pumping device 13 is positioned at described vacuum tank 1 one upper lateral part, and described drainpipe 14 is positioned at described vacuum tank 1 opposite side bottom.
As shown in Figure 1, described for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, described drainpipe 14 is provided with the 3rd valve.
When device uses, first by the first valve 11, second valve 12 and the 3rd valve closing, with hand-operated vacuum-pumping device 13, vacuum tank 1 is vacuumized, open the first valve 11, water is inhaled into vacuum tank 1 by the first arm 3 and common excretory duct 2, when water flows through common excretory duct 2, impacts water wheeler 6, drive electrical generators 7 generates electricity, and generator 7 generation current makes bulb 8 luminous; After vacuum tank 1 is full of water, namely open the 3rd valve, water is emptying; Again by the first valve 11 and the 3rd valve closing, vacuumized by vacuum tank 1, put into counterweight 15 in pallet 10 with hand-operated vacuum-pumping device 13, open the second valve 12, piston 9 can move straight up, writes down piston 9 position scale; Change counterweight 15 quantity, repeatedly repeat aforesaid operations, write down the scale of piston 9 position, according to the scale of piston 9 position and the quality of counterweight 15, atmospheric pressure intensity values can be calculated.
Although embodiment of the present invention are open as above, but it is not restricted to listed in instructions and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (8)
1., for the atmospheric pressure of education experiment and an apparatus for demonstrating for pull of vacuum, it is characterized in that, comprising:
Tank, it is arranged in a L bracket, and for storing water, and tank is at the height adjustable of vertical direction;
Vacuum tank, its side is provided with hand-operated vacuum-pumping device, and opposite side is provided with drainpipe; The Upper vertical of described vacuum tank connects a common excretory duct, described common excretory duct upper end extends to form the first arm and the second arm, described first arm and the second arm are respectively arranged with the first valve and the second valve, and described first arm and the second arm are divided into arc section and vertical section; Described first arm is transparent pipe, and tank is stretched in the vertical section lower end of described first arm, and enters below surface level; The vertical section of described second arm is provided with a piston, and described piston hangs a pallet by suspension hook, in order to accept counterweight;
Wherein, the cross section of described common excretory duct is rectangle, and its position near described vacuum tank is provided with a water wheeler, and the turning axle of described water wheeler is connected with a generator through described common excretory duct, and described generator is a bulb powered by wire; In the middle part of described common excretory duct, inwall is provided with drainage plate, described drainage plate and vertical direction are 30-70 degree angle, and the cross section of described drainage plate is arc, and it is in directly over described water wheeler turning axle bottom.
2. as claimed in claim 1 for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, it is characterized in that, described water is red ink.
3. as claimed in claim 1 for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, it is characterized in that, the width of blade of described water wheeler is slightly less than described common excretory duct cross-sectional width, and the length of described blade is slightly less than 1/2nd of described common excretory duct cross-sectional length.
4. as claimed in claim 3 for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, it is characterized in that, described blade surface is curved, and radian is 40-60 degree.
5. as claimed in claim 1 for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, it is characterized in that, the vertical section of described second arm is provided with scale, and the vertical section of described second arm is provided with limited block bottom.
6. as claimed in claim 1 for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, it is characterized in that, described piston cross-sectional area be 2-3 square centimeter.
7. as claimed in claim 1 for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, it is characterized in that, described hand-operated vacuum-pumping device is positioned at described vacuum tank one upper lateral part, and described drainpipe is positioned at described vacuum tank opposite side bottom.
8. as claimed in claim 7 for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum, it is characterized in that, described drainpipe is provided with the 3rd valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420671158.7U CN204215629U (en) | 2014-11-11 | 2014-11-11 | A kind of for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420671158.7U CN204215629U (en) | 2014-11-11 | 2014-11-11 | A kind of for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum |
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| Publication Number | Publication Date |
|---|---|
| CN204215629U true CN204215629U (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420671158.7U Expired - Fee Related CN204215629U (en) | 2014-11-11 | 2014-11-11 | A kind of for the atmospheric pressure of education experiment and the apparatus for demonstrating of pull of vacuum |
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| Country | Link |
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| CN (1) | CN204215629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376763A (en) * | 2014-11-11 | 2015-02-25 | 李长久 | Atmospheric pressure and vacuum suction presentation device for teaching experiments |
-
2014
- 2014-11-11 CN CN201420671158.7U patent/CN204215629U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376763A (en) * | 2014-11-11 | 2015-02-25 | 李长久 | Atmospheric pressure and vacuum suction presentation device for teaching experiments |
| CN104376763B (en) * | 2014-11-11 | 2016-10-05 | 韦佐 | A kind of atmospheric pressure for education experiment and the apparatus for demonstrating of pull of vacuum |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20151111 |
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| EXPY | Termination of patent right or utility model |