CN102214403B - Music type energy conversion demonstrating instrument - Google Patents
Music type energy conversion demonstrating instrument Download PDFInfo
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- CN102214403B CN102214403B CN 201110209170 CN201110209170A CN102214403B CN 102214403 B CN102214403 B CN 102214403B CN 201110209170 CN201110209170 CN 201110209170 CN 201110209170 A CN201110209170 A CN 201110209170A CN 102214403 B CN102214403 B CN 102214403B
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- Prior art keywords
- water level
- energy conversion
- rod
- level case
- key
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Abstract
The invention discloses a music type energy conversion demonstrating instrument. The music type energy conversion demonstrating instrument comprises a water storing tank, a constant water-level box, a changing flow passage and a key sound-producing mechanism; the changing flow passage comprises a pressure energy hole and a kinetic energy hole and the key sound-producing mechanism is provided with a bracket, a symmetrical curved plate, a rod type driving hammer, keys, a pressure vibrating sound-producing device and the like; one end of the rod type driving hammer is connected with a straight rod which is vertical to the vertex of the symmetrical curved plane, the other end of the rod type driving hammer is in contact with the keys at intervals and the rod type driving hammer is arranged on the bracket. Compared with the prior art, the music type energy conversion demonstrating instrument disclosed by the invention has the advantages of simple structure, clear physical conception and convenience for use; the combination of the energy conversion and the music change enriches the content of the energy conversion; and the demonstrating instrument has lower cost and strong interestingness and is suitable for the popular science education of middle school and primary schools and hydraulic experimental teaching in water-conservancy scientific research academies.
Description
Technical field
The present invention be directed to water body mobile in the pipeline when flowing through the variation of pipeline border, its section kinetic energy, pressure energy change, and a kind of music type energy conversion demonstrating instrument of design.It belongs to the hydraulics technical field.
Background technology
The current water section Energy Transferring Status in the pipeline process of flowing through in display pipeline, prior art are to be the description means with the section piezometric head line, and the height of piezometric head line has reflected the size of section energy.The mode of this description is too dull, lacks interest, thereby the prior art Shortcomings.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned the deficiencies in the prior art, and invent a kind of music type energy conversion demonstrating instrument, it adopts pressure energy, kinetic energy hole vertical fluid mode, with the contrajet acting force that acts on the curved slab, be converted into the power of rod-type hammer, impact key with this, the pressure vibration acoustical generator sounding that causes key to drive, explain the variation of section energy with the size of sound, evaded the deficiencies in the prior art.
Technical solution of the present invention:
A kind of music type energy conversion demonstrating instrument, comprise the constant water level case, change runner and key sound generating mechanism, be provided with pressure energy hole and kinetic energy hole at described variation runner, described key sound generating mechanism comprises support, the symmetroid plate, the rod-type hammer, key and pressure vibration acoustical generator, described variation runner one end links to each other with the constant water level case, change the runner other end flow control valve is set, described rod-type hammer one end links to each other with the vertical straight-bar in symmetroid summit, the rod-type hammer other end is positioned at described key downside and discontinuous connection, described key upside links to each other with the pressure vibration acoustical generator, and described support is arranged on and changes runner pressure energy hole and right side, kinetic energy hole.
Its structure of apparatus of the present invention is comprised of three parts: water supply part, variation runner and key sound generating mechanism.At water supply part, reserve tank, constant water level case are set, its working mechanism: water pump is raised to the water extraction of reserve tank in the constant water level case, utilizes in the constant water level case that glass bead and resistance punching carry out energy dissipating in the energy dissipating chamber, makes in the constant water level case water surface stable.Pressure energy hole, kinetic energy hole, support and flow control valve are set changing runner, the flow action of vertical injection is in the symmetroid inwall in kinetic energy hole and the pressure energy hole.In the key sound generating mechanism, the symmetroid plate that is subject to jet impulse impels rod-type hammer vertical uplift, the hammering key, and the key pressurized causes the pronunciation of pressure vibration acoustical generator.Advantage of the present invention: simple in structure, cost is lower, and is easy to use, clear physics conception, the intension of energy conversion has been enriched in the combination that energy conversion and music change, abundant in content, interesting strong, in being suitable for, primary school's Popular Science Education and the hydraulic experiment teaching of water conservancy class research institutions.
Description of drawings
Fig. 1 is apparatus of the present invention schematic diagram.
Wherein: 1, reserve tank, 2, water pump, 3, water inlet pipe, 4, energy dissipating chamber, 5, the constant water level case, 6, overflow plate, 7, drainpipe, 8, outlet, 9, desktop supports, 10, return pipe, 11, desktop, 12, change runner, 13, pressure energy hole, 14, the kinetic energy hole, 15, the pressure energy hole, 16, kinetic energy hole, 17, the pressure energy hole, 18, key, 19, rod-type hammer, 20, symmetroid, 21, the kinetic energy hole, 22, support, 23, change the runner support, 24, flow control valve, 25, the backwater feeder, 26, pressure vibration hair device sound.
Embodiment
The course of work: a certain amount of water is stored in the reserve tank 1, and the water in the reserve tank 1 enters energy dissipating chamber 4 by water pump lifting.In energy dissipating chamber 4, current and glass bead and the interaction of resistance punching consume flow energy, so that flow out the water body of energy dissipating chamber, and in the 5 interior slowly steadily risings of constant water level case.When the water body in the constant water level case 5 slowly steadily rises to the top of overflow plate 6, the beginning overflow.The water of overflow flow back in the reserve tank 1 through drainpipe 7.This moment, the water level in the constant water level case 5 keeps constant.In the constant water level situation, open the switch of flow control valve 24, make the interior flow of variation runner keep certain value.Then, open successively the seal closure of pressure energy hole, upper end, kinetic energy hole, vertical fluid acts on the symmetroid 20 in the hole.The symmetroid 20 of being impacted moves upward, and causes rod-type hammer 14 to move vertically upward, impacts key 18, and the key 18 that is impacted drives pressure vibration acoustical generator 26 and sends music.Change flow control valve 24 apertures, the pressure energy in pressure energy hole and the kinetic energy in kinetic energy hole are changed, the value of variation, after can being impacted by symmetrical panel 20, rod-type hammer 19 impacts key 18, causes that the music that pressure vibration hair device sound 26 sends just judges.
Claims (2)
1. music type energy conversion demonstrating instrument, it is characterized in that: comprise constant water level case (5), change runner (12) and key sound generating mechanism, be provided with pressure energy hole (13 at described variation runner (12), 15,17) and kinetic energy hole (14,16,21), described key sound generating mechanism comprises support (22), symmetroid plate (20), rod-type hammer (19), key (18) and pressure vibration acoustical generator (26), described variation runner (12) one ends link to each other with constant water level case (5), change runner (12) other end flow control valve (24) is set, described rod-type hammer (19) one ends link to each other with the vertical straight-bar in symmetroid (20) summit, rod-type hammer (19) other end is positioned at described key (18) downside and discontinuous connection, described key (18) upside links to each other with pressure vibration acoustical generator (26), and described support (22) is arranged on and changes runner pressure energy hole and right side, kinetic energy hole; On described support (22) top slide opening is set, rod-type hammer (19) slides in support (22) slide opening vertical the connection.
2. music type energy conversion demonstrating instrument according to claim 1, it is characterized in that: also be provided with a reserve tank (1) in described constant water level case lower end, energy dissipating chamber (4) also is set in described constant water level case (5), the entrance of overflow plate (6) and drainpipe (7), in described reserve tank, be provided with water pump (2), described water inlet pipe (3) one ends are connected with described water pump (2), the energy dissipating chamber (4) that the other end of water inlet pipe (3) is connected to the constant water level case makes the water body of constant water level case (5) stable, described overflow plate (6) makes the water level of constant water level case (5) constant, and reserve tank (1) is vertically pointed in the outlet (8) of described drainpipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110209170 CN102214403B (en) | 2011-07-26 | 2011-07-26 | Music type energy conversion demonstrating instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110209170 CN102214403B (en) | 2011-07-26 | 2011-07-26 | Music type energy conversion demonstrating instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102214403A CN102214403A (en) | 2011-10-12 |
| CN102214403B true CN102214403B (en) | 2013-04-10 |
Family
ID=44745697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110209170 Expired - Fee Related CN102214403B (en) | 2011-07-26 | 2011-07-26 | Music type energy conversion demonstrating instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102214403B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409079A (en) * | 2016-05-31 | 2017-02-15 | 河海大学 | Water attack demonstration experiment apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2729678Y (en) * | 2004-10-12 | 2005-09-28 | 浙江大学 | Self circulating bernoulli equation experiment instrument |
| CN2870038Y (en) * | 2006-01-18 | 2007-02-14 | 浙江大学 | Self-circulation electric measuring momentum theorem experiment instrument |
| FR2952464B1 (en) * | 2009-11-09 | 2011-12-09 | Essilor Int | DEMONSTRATOR OF HYDROPHOBIC PROPERTY |
| CN101739874B (en) * | 2010-02-02 | 2011-06-15 | 浙江大学 | Torque balance momentum law experimental device |
| CN101865746B (en) * | 2010-06-02 | 2011-08-10 | 河海大学 | Vertical jetting momentum equation dynamometer |
| CN101950507B (en) * | 2010-09-07 | 2012-01-04 | 河海大学 | Demonstration experiment device of water hammer phenomena in pipelines with various pipe qualities and pipe types |
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2011
- 2011-07-26 CN CN 201110209170 patent/CN102214403B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102214403A (en) | 2011-10-12 |
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