CN205959488U - Bobble endless presentation device - Google Patents
Bobble endless presentation device Download PDFInfo
- Publication number
- CN205959488U CN205959488U CN201620494542.3U CN201620494542U CN205959488U CN 205959488 U CN205959488 U CN 205959488U CN 201620494542 U CN201620494542 U CN 201620494542U CN 205959488 U CN205959488 U CN 205959488U
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- CN
- China
- Prior art keywords
- vertical tube
- bead
- ring
- return duct
- vertical pipe
- 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.)
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Abstract
The utility model discloses a bobble endless presentation device, including bobble, fan, vertical pipe, back flow and ring, the air outlet of fan communicates the lower extreme at vertical pipe, the bobble is placed vertical intraductal, back flow one end intercommunication is in vertical pipe side, and the gas outlet of the other end is located near on the vertical pipe, the ring is installed to vertical pipe, encircle to be located vertical pipe and back flow intercommunication department upper end, the internal diameter of ring is greater than the bobble, vertical pipe upper end separates one section distance with the air outlet of back flow, vertical pipe equals with back flow internal diameter size, intra -annular footpath and vertical internal diameter of pipe ratio are 1: 2 3. The utility model is simple in operation, can be under the thrust and fluidic bernoulli's theorem combined action of air current, realize the reciprocating of bobble, just audio -visual the understandings fluidic characteristic of student, the hydromechanical basic law, the fluid is to the effect effect of object, grasp ideal fluid's constant flow.
Description
Technical field
The utility model is related to a kind of device used in science and education test and recreation.More specifically, this practicality
The new apparatus for demonstrating being related to a kind of circulation of the bead for science and education test.
Background technology
In a fluid system, in air-flow, current, flow velocity is faster, and the pressure that fluid produces is less, here it is being claimed
Denier Bernoulli Jacob for the father of hydrodynamics.The content of Bernoulli's theorem is：By can not press, perfect fluid is determined along flow tube
Bernoulli's theorem when permanent current moves is known, flowing velocity increases, and the static pressure of fluid will reduce；Conversely, flowing velocity reduces, fluid
Static pressure will increase.Its essence is the conservation of mechanical energy of fluid, that is,：Kinetic energy+gravitional force+pressure potential=constant.Bai Nu
Sharp law has a wide range of applications in hydraulics and applied fluid mechanics.Because it is finite relationship formula, commonly use it to replace
Differential equation of motion, therefore significant in hydromechanical theoretical research.Bernoulli's theorem is applied to and exists including gas
All interior fluids, are that fluid makees one of fundamemtal phenomena during steady flow, reflect the pressure of fluid and the relation of flow velocity, that is,
The flow velocity of fluid is bigger, and pressure is less；The flow velocity of fluid is less, and pressure is bigger.
But in existing teaching process, it is to enter with reference to examples such as aircraft wing, sprayer, petrolic vaporizers mostly
Row explanation, does not have the circulation apparatus for demonstrating occurring simultaneously utilizing the thrust of air-flow and the Bernoulli's theorem of fluid, does not have one yet
Can be directly perceived, lively demonstration circulation apparatus for demonstrating under airflow function for the bead so that student gets information about the spy of fluid
Property, hydromechanical basic law, the action effect to object for the fluid, grasp the Steady Flow of perfect fluid.
How to design a device that can demonstrate bead circulation, so that student gets information about the characteristic of fluid, stream
The basic law of mechanics, the action effect to object for the fluid, grasp the Steady Flow of perfect fluid, this is to be badly in need of asking of solution
Topic.
Utility model content
The utility model, in order to overcome the defect of prior art, discloses a kind of apparatus for demonstrating of bead circulation.
A purpose of the present utility model is, designs a kind of simple to operate, can be in the thrust of air-flow and fluid
Under Bernoulli's theorem collective effect, realize the apparatus for demonstrating of the iterative motion of bead.
In order to realize according to these purposes of the present utility model and further advantage, there is provided a kind of demonstration dress of bead circulation
Put, including：
Bead, it is the spheroid of quality very little；
Blower fan, its internal impeller converts mechanical energy into gas kinetic energy, and air-flow is transferred out；
VERTICAL TUBE, the air-flow that blower fan produces is drawn by straight up, and the air outlet of described blower fan connects in VERTICAL TUBE
Lower end, described bead is placed in VERTICAL TUBE；
Return duct, the airflow diversion part that blower fan is produced by it to VERTICAL TUBE upper end, the connection of described return duct one end exists
VERTICAL TUBE side, the gas outlet of the other end is located near VERTICAL TUBE upper end；
Ring, it is used for reducing bore, increases gas flow rate in pipe, and described VERTICAL TUBE is provided with ring, and ring is located at VERTICAL TUBE
With return duct connectivity part upper end, the internal diameter of described ring is more than bead；
Wherein, the air outlet of described VERTICAL TUBE upper end and return duct from a distance, in described VERTICAL TUBE and return duct
Footpath is equal in magnitude, and described ring internal diameter and vertical bore ratio are 1:2-3.
Preferably, also include：
Cage modle cover, it is annular disc up and down, connects some bent outward arc strips, under described cage modle cover between two disks
Port connection is fixed on VERTICAL TUBE upper port, and cage modle cover upper port is less than the gas outlet of return duct, and described bead is placed in cage modle cover
Interior, the disk endoporus of cage modle cover is more than bead.
Preferably, described VERTICAL TUBE and return duct are each attached on backboard, and backboard is vertically fixed on the upper surface of showcase.
Preferably, described VERTICAL TUBE and return duct are all fixed together by Fixing shrink ring, and retainer ring is passed through again
Screw is fixed on backboard, and described retainer ring opens up hole, and the internal diameter in hole is equal in magnitude with VERTICAL TUBE, return duct external diameter.
Preferably, the fixing end of described retainer ring is plane, and the other end is semicircle.
Preferably, described assembling is inside showcase.
The utility model at least includes following beneficial effect：Because bead bottom is pushed up by air-flow in VERTICAL TUBE
Power, bead side is subject to airflow function in return duct, and according to the Bernoulli's theorem of fluid, bead side is subject to and air-flow side
To contrary pressure, therefore bead is first pushed to the floating of VERTICAL TUBE top, then airflow function in return duct, produces and air-flow
Pressure in opposite direction, bead is pressed into return duct, returns in VERTICAL TUBE along return duct, carries out reciprocation cycle so in pipe
Motion；Because cage modle cover is annular disc up and down, between two disks, connect some bent outward arc strips, cage modle cover lower port connects
It is fixed on VERTICAL TUBE upper port, therefore cage modle cover has flow-disturbing protective action, prevent air-flow shakiness from leading to foam ball disorderly to fly；Due to
Hole is opened up on retainer ring, the internal diameter in hole is equal in magnitude with VERTICAL TUBE, return duct external diameter, and pipeline is plugged in retainer ring, retainer ring
It is screwed on backboard, the fixing end of retainer ring is plane, and the other end is semicircle, and therefore Pipe installing is simple, square
Just, together with backplane, retainer ring is connected even closer, firm, the peace that raising uses to the fixing end of retainer ring with backboard
Quan Xing；Because blower fan adopts centrifugal blower, external buncher, therefore noise are extremely low, can real-time adjustment air force, control
The height of foam bead；Because all pipelines are all using antistatic acrylic pipeline, therefore avoiding electrostatic interaction makes bead attached
In inner-walls of duct, affect demonstrating effect；Because backboard is arranged on showcase, therefore bandwagon effect is good, is easy to the use of product
And popularization.
Part is embodied by further advantage of the present utility model, target and feature by description below, and part also will be passed through
Research of the present utility model and practice are understood by the person skilled in the art.
Brief description
Fig. 1 is the structure principle chart of the apparatus for demonstrating of bead circulation in embodiment of the present utility model；
Fig. 2 is the overall structure diagram of retainer ring in embodiment of the present utility model；
Fig. 3 is the stereogram of the apparatus for demonstrating of bead circulation in embodiment of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be appreciated that used herein such as " have ", "comprising" and " inclusion " term do not allot one or many
The presence of individual other element or a combination thereof or interpolation.
Fig. 1 to 3 shows according to a kind of way of realization of the present utility model, including：Bead 1, described bead 1 is bubble
Foam ball, bead 1 is placed in VERTICAL TUBE 2, and VERTICAL TUBE 2 lower end connects centrifugal blower 3 air outlet, described VERTICAL TUBE 2 lower side
Connection return duct 4 one end, the gas outlet of return duct 4 other end is located near VERTICAL TUBE 2 upper end, described VERTICAL TUBE 2, centrifugal blower
3 air outlets and return duct 4 can pass through three-way pipe communicating pipe, be provided with ring 5 in described VERTICAL TUBE 2 with one heart, and ring 5 is located at VERTICAL TUBE 2
With return duct 4 connectivity part upper end, the internal diameter of described ring 5 is more than bead 1, the air outlet of described VERTICAL TUBE 2 upper end and return duct 4 every
Open a segment distance, described VERTICAL TUBE 2 is equal in magnitude with return duct 4 internal diameter, described ring 5 internal diameter size is 22mm, described VERTICAL TUBE 2
It is 55m with return duct 4 internal diameter size.
Bead 1 is used for the movable body of circulation demonstration；VERTICAL TUBE 2 is used for transmission air-flow straight up so that bead suspends
In the air；Centrifugal blower 3 provides power for circulation demonstration；Return duct 4 is used for transmitting the side airflow of bead so that bead side
By airflow function in return duct, according to the Bernoulli's theorem of fluid, bead side is subject to press contrary with airflow direction
Power；Ring 5 reduces the internal diameter of VERTICAL TUBE, improves the air velocity in pipe.
In this technical scheme, bead bottom is subject to the upwards thrust of air-flow in VERTICAL TUBE, is flowed back in bead side
Airflow function in pipe, according to the Bernoulli's theorem of fluid, bead side is subject to the pressure contrary with airflow direction, and bead is first
It is pushed to the floating of VERTICAL TUBE top, then airflow function in return duct, produce the pressure contrary with airflow direction, bead is pressed
Enter return duct, return in VERTICAL TUBE along return duct, carry out reciprocation cycle motion so in pipe.
A kind of implementation of the blower fan in such scheme is：Above-mentioned blower fan adopts centrifugal blower 3, external electrodeless variable-speed
Device.Noise is had using this scheme extremely low, can real-time adjustment air force, control the benefit of the height of foam bead.
A kind of implementation of the pipeline in such scheme is：Above-mentioned pipeline is all using antistatic acrylic pipeline.Adopt
Had with this scheme and avoid electrostatic interaction and make bead be attached to inner-walls of duct, the benefit of impact demonstrating effect.
In another kind of example, described VERTICAL TUBE 2 upper port connects cage modle cover 6, and cage modle cover is annular disc about 6, and two
Some bent outward arc strips are connected between disk.Therefore flow-disturbing protective action is had using this scheme, prevent air-flow shakiness from leading
Cause the benefit that foam ball disorderly flies.And, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another kind of example, described retainer ring 7 opens up hole 8, the internal diameter in hole 8 is big with VERTICAL TUBE 2, return duct 4 external diameter
Little equal, pipeline is plugged in retainer ring 7, and retainer ring 7 is screwed on backboard 9, and the fixing end of retainer ring 7 is flat
Face, the other end is semicircle.Pipe installing is had using this scheme simple, convenient, the fixing end of retainer ring and backplane
Together, retainer ring is connected the benefit of the security even closer, firm, raising uses with backboard.And, this mode
A kind of simply explanation of preferred embodiments, but be not limited thereto.
In another kind of example, described backboard 9 is arranged on showcase 10.Bandwagon effect is had using this scheme good, just
The benefit using and promoting in product.And, this mode is a kind of explanation of preferred embodiments, but is not limited to
This.
As described above, according to the utility model, because bead bottom is subject to the upwards thrust of air-flow in VERTICAL TUBE, bead side
Face is subject to airflow function in return duct, and according to the Bernoulli's theorem of fluid, bead side is subject to contrary with airflow direction
Pressure, therefore bead are first pushed to the floating of VERTICAL TUBE top, then airflow function in return duct, produce contrary with airflow direction
Pressure, bead is pressed into return duct, returns in VERTICAL TUBE along return duct, carries out reciprocation cycle motion so in pipe；By
It is annular disc up and down in cage modle cover, between two disks, connects some bent outward arc strips, the connection of cage modle cover lower port is fixed on
VERTICAL TUBE upper port, therefore cage modle cover have flow-disturbing protective action, prevent air-flow shakiness from leading to foam ball disorderly to fly；Due to retainer ring
On open up hole, the internal diameter in hole is equal in magnitude with VERTICAL TUBE, return duct external diameter, and pipeline is plugged in retainer ring, retainer ring pass through spiral shell
Silk is fixed on backboard, and the fixing end of retainer ring is plane, and the other end is semicircle, and therefore Pipe installing is simple, convenient, fixing
Together with backplane, retainer ring is connected even closer, firm, the security that raising uses to the fixing end of ring with backboard；By
Adopt centrifugal blower in blower fan, external buncher, therefore noise are extremely low, can real-time adjustment air force, control foam little
The height of ball；Because all pipelines are all using antistatic acrylic pipeline, therefore avoiding electrostatic interaction makes bead be attached to pipe
Road inwall, affects demonstrating effect；Because backboard is arranged on showcase, therefore bandwagon effect is good, is easy to using and promoting of product.
Although embodiment of the present utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization.It can be applied to various suitable fields of the present utility model completely.For those skilled in the art,
It is easily achieved other modification.Therefore under the universal being limited without departing substantially from claim and equivalency range, this reality
It is not limited to specific details with new and shown here as the legend with description.
Claims (6)
1. a kind of apparatus for demonstrating of bead circulation is it is characterised in that include：
Bead, it is the spheroid of quality very little；
Blower fan, its internal impeller converts mechanical energy into gas kinetic energy, and air-flow is transferred out；
VERTICAL TUBE, the air-flow that blower fan produces is drawn by straight up, and the air outlet of described blower fan connects in the lower end of VERTICAL TUBE,
Described bead is placed in VERTICAL TUBE；
Return duct, to VERTICAL TUBE upper end, described return duct one end connects vertical the airflow diversion part that blower fan is produced by it
Tube side face, the gas outlet of the other end is located near VERTICAL TUBE upper end；
Ring, it is used for reducing bore, increases gas flow rate in pipe, and described VERTICAL TUBE is provided with ring, and ring is located at VERTICAL TUBE and returns
Flow tube connectivity part upper end, the internal diameter of described ring is more than bead；
Wherein, from a distance, described VERTICAL TUBE is big with backflow bore for the air outlet of described VERTICAL TUBE upper end and return duct
Little equal, described ring internal diameter and vertical bore ratio are 1:2-3.
2. the apparatus for demonstrating of bead circulation as claimed in claim 1 is it is characterised in that also include：
Cage modle cover, it is annular disc up and down, connects some bent outward arc strips, described cage modle cover lower port between two disks
Connection is fixed on VERTICAL TUBE upper port, and cage modle cover upper port is less than the gas outlet of return duct, and described bead is placed in cage modle cover, cage
The disk endoporus of type cover is more than bead.
3. as any one of claim 1 or 2 bead circulation apparatus for demonstrating it is characterised in that described VERTICAL TUBE and
Return duct is each attached on backboard, and backboard is vertically fixed on the upper surface of showcase.
4. the apparatus for demonstrating of bead circulation as claimed in claim 3 is it is characterised in that described VERTICAL TUBE and return duct all pass through
Fixing shrink ring is fixed together, and retainer ring is screwed on backboard again, and described retainer ring opens up hole, hole interior
Footpath is equal in magnitude with VERTICAL TUBE, return duct external diameter.
5. the apparatus for demonstrating of bead circulation as claimed in claim 4 is it is characterised in that the fixing end of described retainer ring is flat
Face, the other end is semicircle.
6. the apparatus for demonstrating of bead circulation as claimed in claim 3 is it is characterised in that described assembling is inside showcase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620494542.3U CN205959488U (en) | 2016-05-27 | 2016-05-27 | Bobble endless presentation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620494542.3U CN205959488U (en) | 2016-05-27 | 2016-05-27 | Bobble endless presentation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205959488U true CN205959488U (en) | 2017-02-15 |
Family
ID=57967952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620494542.3U Expired - Fee Related CN205959488U (en) | 2016-05-27 | 2016-05-27 | Bobble endless presentation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205959488U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369366A (en) * | 2017-06-23 | 2017-11-21 | 北京福睿媒森科技有限公司 | A kind of bead brattice entertainment for children facility for study |
| CN108961955A (en) * | 2018-07-26 | 2018-12-07 | 王小兰 | It is a kind of for demonstrating the device of bernoulli principle |
-
2016
- 2016-05-27 CN CN201620494542.3U patent/CN205959488U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369366A (en) * | 2017-06-23 | 2017-11-21 | 北京福睿媒森科技有限公司 | A kind of bead brattice entertainment for children facility for study |
| CN108961955A (en) * | 2018-07-26 | 2018-12-07 | 王小兰 | It is a kind of for demonstrating the device of bernoulli principle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 223005 Room 312, Building 4, 266 Chengde South Road (Huaian Software Park), Huaian Economic and Technological Development Zone, Jiangsu Province Patentee after: Jiangsu science dream Creation Engineering Co., Ltd. Address before: 223005 Room 312, Building 4, 266 Chengde South Road (Huaian Software Park), Huaian Economic and Technological Development Zone, Jiangsu Province Patentee before: Huaming, Jiangsu science and education equipment company limited |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20200527 |