CN109697923A - A kind of device for jet pipe teaching - Google Patents
A kind of device for jet pipe teaching Download PDFInfo
- Publication number
- CN109697923A CN109697923A CN201910159973.2A CN201910159973A CN109697923A CN 109697923 A CN109697923 A CN 109697923A CN 201910159973 A CN201910159973 A CN 201910159973A CN 109697923 A CN109697923 A CN 109697923A
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- jet pipe
- tube
- gas
- guide tube
- student
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
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- General Physics & Mathematics (AREA)
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- Mathematical Physics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Educational Administration (AREA)
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- Business, Economics & Management (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Measuring Volume Flow (AREA)
Abstract
For develop can allow student visually direct feel to the effect of jet pipe, cost is not high again and is convenient for carrying in order in class demonstration and can allowing each student that can participate in the jet pipe instructional device in experimentation can give full play to the learning interest of student.The present invention devises a kind of device for jet pipe teaching, it is by support (1), graded tube (2), gas-guide tube (5,6,11), air duct fitting (9), measurement bead (8), convergent nozzle (7) composition.Measurement bead is placed in graded tube, and graded tube is fixed by support and passed through gas-guide tube, air duct fitting and convergent nozzle etc. and connect with external device (ED) (such as inflator).Compared with prior art, the beneficial effect of technical solution of the present invention is: apparatus structure is simple, light, makes it easier to carry and cost is not high, therefore is convenient for class demonstration, allows student to operate after class；And the variation for measuring bead height can allow the effect of student's direct feel to jet pipe to excite students ' interest of study in turn, promote teaching efficiency.
Description
Technical field
The present invention relates to instructional device correlative technology fields, more particularly, to a kind of device for jet pipe teaching.
Background technique
It is influenced by the modernization science and technology such as smart phone, 4G high-speed communication, university student pole during course learning
Easily divert one's attention.No matter for university student or primary and secondary students, interest is all best teacher.Thus impart knowledge to students in college course
In the process can with and it should be emphasized that students ' interest of study excitation.Student is allowed first to be interested in, be taught under content, conditions permit again again
It is engaged in scientific experiment verifying institute's theory, to realize the purpose for preferably teaching student.
Jet pipe typically belongs to the content of courses of thermodynamics course in college course system, assumes in unitary steady flow
Under, the changing rule of pressure, speed, flow after flowing through jet pipe by acquisition fluid after a large amount of derivation of equation etc.；Simultaneously also
There are many jet pipe experimental provisions that can measure this change procedure well, student should be able to by experiment and laboratory report later
Better understand this process.Seem that the content imparted knowledge to students about jet pipe is solved perfectly, student can therefrom acquire base
Plinth theory can also grasp experimental technique.But reality is, the derivation of equation from the beginning just allows many students to hang back, and
Experiment later also can not allow student to obtain direct feel in vision in time, thus many students is caused to lose interest in this, from
It is that very difficult learning Content thus contradicts or even abandon to carry out deep learning that this is considered as in subconsciousness.
So we need such jet pipe instructional device, student's visually work of the direct feel to jet pipe can be allowed first
With it is that can allow each student that can participate in experimentation again that secondly cost is not high and is convenient for carrying in order to class demonstration
In the learning interest of student can be given full play to.Existing all kinds of jet pipe instructional devices are made a general survey of, and have not seen similar products.
Summary of the invention
For develop can allow student visually direct feel to jet pipe effect, again cost it is not high and be convenient for carrying with
Convenient for that in class demonstration and can allow each student that can participate in experimentation to give full play to the learning interest of student
Jet pipe instructional device, present invention design have been invented a kind of device for jet pipe teaching, by support (1), graded tube (2), have been led
Tracheae (5,6,11), air duct fitting (9), measurement bead (8), convergent nozzle (7) composition.Wherein measurement bead is placed in graded tube
Interior, graded tube is fixed by support and is passed through gas-guide tube, air duct fitting and convergent nozzle etc. and connects with external device (ED) (such as inflator)
It connects.
Preferably, support lower part is plastics conical support, and top is slightly larger than the round-meshed plastics of graded tube and bottom surface
Hollow cylinder processed.The effect of support is fixed graded tube.
Preferably, graded tube is a hollow plastics rounding cylinder transparent pipe, and tube wall is carved with scale, and tube bottom face, which is shunk, to be become
Become an interface that can be connect with gas-guide tube after narrow.
Preferably, gas-guide tube is made of soft hose, quantity have 4, including 2 short-range missile tracheaes, 1 root long gas-guide tube and
1 gas-guide tube being connect with graded tube.The effect of gas-guide tube is that the gas for providing external equipment (such as inflator) imported into quarter
It spends in pipe.
Preferably, measurement bead is hollow bead made of light material, and diameter is more smaller than scale pipe diameter.By leading
The gas provided by external equipment (such as inflator) is imported in graded tube and blows afloat measurement bead by tracheae, and student's direct feel is allowed to arrive
Jet pipe acts on the variation of lower fluid flowing.
Preferably, becoming one after jet pipe selects plastics convergent nozzle, jet pipe both ends to shrink can be directly connected to gas-guide tube
Interface.
Compared with prior art, the beneficial effect of technical solution of the present invention is: apparatus structure is simple, light, makes it easier to
It carries and cost is not high, therefore be convenient for class demonstration, allow student to operate after class；And the variation for measuring bead height can allow student intuitive
It experiences the effect of jet pipe and then excites students ' interest of study, promote teaching efficiency.
Detailed description of the invention
Fig. 1 is structure drawing of device.
Device operation schematic diagram when Fig. 2 is without using jet pipe.
Device operation schematic diagram when Fig. 3 is using jet pipe.
Wherein, corresponding appended drawing reference in figure are as follows: 1- support, 2- graded tube, 3- graded tube high scale, 4- graded tube with lead
Pipe jointing part, 5- short-range missile tracheae, 6- long gas-guide tube, 7- convergent nozzle, 8- measure bead, 9- air duct fitting, 10- conduit and outer
Connect equipment (such as inflator) interconnecting piece, the gas-guide tube of 11- connection graded tube.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
The following further describes the technical solution of the present invention with reference to the accompanying drawings and examples.
In jet pipe teaching process, support, graded tube and gas-guide tube etc. are connected and led to according to mode as shown in Figure 2 first
It crosses interface (10) to connect with external equipment inflator, and invites a student to make great efforts operational pump cylinder and full class classmate is allowed to observe and survey
The height for measuring bead records height value after waiting beads highly stable.
Then, support, graded tube and gas-guide tube and jet pipe are connected according to mode as shown in Figure 3, equally passes through interface
(10) it is connect with external equipment inflator, and invites that same student makes great efforts operational pump cylinder and to allow full class classmate to observe and measure small
The height of ball records height value after waiting beads highly stable.
Then, the difference of the scale value as obtained by observation Germicidal efficacy twice, proposes have asking for difference in height why
Thus topic amplifies out the serial content of courses such as structure, principle of jet pipe, and then can even amplify out the working principle etc. of inflator
The serial content of courses.
Further, give this device to student after class, allow they voluntarily practice or each other match therefrom to obtain pair
More cognitions of jet pipe.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (6)
1. it is a kind of for jet pipe teaching device, it is characterised in that: the instructional device invented by support (1), graded tube (2),
Gas-guide tube (5,6,11), air duct fitting (9), measurement bead (8), convergent nozzle (7) composition；Wherein measurement bead is placed in scale
In pipe, gas-guide tube, air duct fitting and convergent nozzle etc. and external device (ED) (such as inflator) are fixed by support and passed through to graded tube
Connection.
2. a kind of device for jet pipe teaching according to claim 1, it is characterised in that: support lower part is plastics system cone
Shape bracket, top are slightly larger than the round-meshed plastics hollow cylinder of graded tube and bottom surface.
3. a kind of device for jet pipe teaching according to claim 1, it is characterised in that: graded tube is one hollow
Plastics rounding cylinder transparent pipe, tube wall are carved with scale, and the contraction of tube bottom face becomes an interface that can be connect with gas-guide tube after narrowing.
4. a kind of device for jet pipe teaching according to claim 1, it is characterised in that: gas-guide tube is by soft hose
It is made, quantity has 4, including 2 short-range missile tracheaes, 1 root long gas-guide tube and 1 gas-guide tube connecting with graded tube.
5. a kind of device for jet pipe teaching according to claim 1, it is characterised in that: measurement bead is light material
Manufactured hollow bead, diameter are more smaller than scale pipe diameter.
6. a kind of device for jet pipe teaching according to claim 1, it is characterised in that: jet pipe selects plastics system tapered
Jet pipe, jet pipe both ends become an interface that can be directly connected to gas-guide tube after shrinking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910159973.2A CN109697923A (en) | 2019-03-04 | 2019-03-04 | A kind of device for jet pipe teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910159973.2A CN109697923A (en) | 2019-03-04 | 2019-03-04 | A kind of device for jet pipe teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109697923A true CN109697923A (en) | 2019-04-30 |
Family
ID=66235082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910159973.2A Withdrawn CN109697923A (en) | 2019-03-04 | 2019-03-04 | A kind of device for jet pipe teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109697923A (en) |
Citations (9)
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|---|---|---|---|---|
| JPH11352877A (en) * | 1998-06-11 | 1999-12-24 | Seibunsha:Kk | Water gun/air gun for learning |
| KR20120051391A (en) * | 2010-11-12 | 2012-05-22 | 한국항공우주연구원 | Test apparatus for developing pogo suppression device |
| CN202631243U (en) * | 2012-06-16 | 2012-12-26 | 榆林学院 | Experimental test device for CO2 spray pipe |
| CN205943173U (en) * | 2016-06-02 | 2017-02-08 | 河南理工大学万方科技学院 | Vocal music exerciser |
| CN207493100U (en) * | 2017-11-23 | 2018-06-15 | 南通市肺科医院（南通市第六人民医院） | A kind of adjustable pulmonary function trainer |
| CN108267290A (en) * | 2017-12-19 | 2018-07-10 | 中国航天空气动力技术研究院 | A kind of quiet jet pipe boundary layer suction arrangement |
| CN109014900A (en) * | 2018-09-04 | 2018-12-18 | 湖北三江航天江北机械工程有限公司 | The assembly method of flexible joint nozzle |
| CN208426597U (en) * | 2018-05-28 | 2019-01-25 | 复旦大学附属中山医院 | A kind of expiratory muscle training system based on Internet of Things |
| CN208525752U (en) * | 2018-05-31 | 2019-02-22 | 宋卫红 | A kind of Respiratory Medicine lung capacity training device |
-
2019
- 2019-03-04 CN CN201910159973.2A patent/CN109697923A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11352877A (en) * | 1998-06-11 | 1999-12-24 | Seibunsha:Kk | Water gun/air gun for learning |
| KR20120051391A (en) * | 2010-11-12 | 2012-05-22 | 한국항공우주연구원 | Test apparatus for developing pogo suppression device |
| CN202631243U (en) * | 2012-06-16 | 2012-12-26 | 榆林学院 | Experimental test device for CO2 spray pipe |
| CN205943173U (en) * | 2016-06-02 | 2017-02-08 | 河南理工大学万方科技学院 | Vocal music exerciser |
| CN207493100U (en) * | 2017-11-23 | 2018-06-15 | 南通市肺科医院（南通市第六人民医院） | A kind of adjustable pulmonary function trainer |
| CN108267290A (en) * | 2017-12-19 | 2018-07-10 | 中国航天空气动力技术研究院 | A kind of quiet jet pipe boundary layer suction arrangement |
| CN208426597U (en) * | 2018-05-28 | 2019-01-25 | 复旦大学附属中山医院 | A kind of expiratory muscle training system based on Internet of Things |
| CN208525752U (en) * | 2018-05-31 | 2019-02-22 | 宋卫红 | A kind of Respiratory Medicine lung capacity training device |
| CN109014900A (en) * | 2018-09-04 | 2018-12-18 | 湖北三江航天江北机械工程有限公司 | The assembly method of flexible joint nozzle |
Non-Patent Citations (1)
| Title |
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| 闻建龙: "《流体力学实验》", 31 July 2018, 江苏大学出版社 * |
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Application publication date: 20190430 |