CN112216261A - Air whistle - Google Patents
Air whistle Download PDFInfo
- Publication number
- CN112216261A CN112216261A CN201910615314.5A CN201910615314A CN112216261A CN 112216261 A CN112216261 A CN 112216261A CN 201910615314 A CN201910615314 A CN 201910615314A CN 112216261 A CN112216261 A CN 112216261A
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- Prior art keywords
- air
- whistle
- seat
- air chamber
- horn
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 239000012535 impurity Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 239000012528 membrane Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
- G10K9/04—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated by compressed gases, e.g. compressed air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Toys (AREA)
Abstract
The invention provides a wind whistle, which belongs to the technical field of sound production equipment and comprises a wind whistle seat, a sound production structure, a loudspeaker, a frequency modulation seat and a wind source connecting part.
Description
Technical Field
The invention belongs to the technical field of sound production equipment, and particularly relates to a wind whistle.
Background
The whistle is an important sound warning device for the rail vehicle, can warn pedestrians and vehicles to avoid trains, and prevents safety accidents from being caused. In order to ensure the performance, safety and reliability of the air whistle, related standard files are set for domestic and foreign rail vehicles, and the performance indexes of the air whistle are defined. The air whistle frequency is the important performance index of air whistle, and current air whistle can't realize the frequency modulation function.
Disclosure of Invention
The invention aims to provide a wind whistle to solve the technical problem that the wind whistle in the prior art cannot be subjected to frequency modulation.
In order to achieve the purpose, the invention adopts the technical scheme that: there is provided a wind whistle comprising:
the whistle seat is provided with a hollow cavity for the flowing of air to produce sound;
the sounding structure is arranged in the hollow cavity and is used for dividing the hollow cavity into a first air chamber and an opening cavity;
the horn is fixedly arranged on the whistle seat and is communicated with the sounding structure;
the frequency modulation seat is used for covering the opening cavity and forming a second air chamber between the opening cavity and the sounding structure; the frequency modulation base is movably connected to the air whistle base along the opening direction of the opening cavity;
the wind regime connecting portion is located on the air whistle seat, be located the sound production structure with between the loudspeaker, and with first air chamber intercommunication for let in the air.
Furthermore, an internal thread is arranged on the whistle seat, and an external thread connected with the internal thread is arranged on the outer wall of the frequency modulation seat.
Furthermore, an exhaust hole for exhausting is formed in the frequency modulation seat.
Furthermore, the outer side surface of the frequency modulation seat is of a tooth-shaped structure, and the frequency modulation seat and the air whistle seat are positioned through a first bolt penetrating through the tooth-shaped structure.
Further, the sound emitting structure includes:
the diaphragm is arranged in the hollow cavity and fixed on the whistle seat, and the second air chamber is formed between the diaphragm and the frequency modulation seat;
one end of the sounding nozzle is abutted against one side of the diaphragm, which is far away from the second air chamber, and the other end of the sounding nozzle is fixed on the whistle seat and communicated with the horn;
the diaphragm and the sounding mouth enclose the hollow cavity into a first air chamber.
Further, the diaphragm is kept away from loudspeaker one side is equipped with solid fixed ring, gu be equipped with a plurality of first through-holes on the fixed ring, be equipped with on the diaphragm a plurality of with the corresponding second through-hole of first through-hole, be equipped with in the whistle seat with first through-hole with the corresponding screw hole of second through-hole, the diaphragm with gu fixed ring through passing first through-hole the second through-hole with the second bolt fixed connection of screw hole in on the whistle seat.
Furthermore, one side of the whistle seat close to the horn is provided with a first connecting hole communicated with the first air chamber, the other end of the sounding mouth is fixedly connected with one end of the first connecting hole, and the horn is fixedly connected with the other end of the first connecting hole.
Furthermore, a horn fixing sleeve fixedly connected with a horn is arranged at the other end of the first connecting hole.
Further, the wind source connection part includes:
the second connecting hole is formed in the whistle seat and communicated with the first air chamber;
and one end of the air pipe joint extends into the second connecting hole and is communicated with the first air chamber, and the other end of the air pipe joint is used for connecting an air source.
Furthermore, a filter screen for filtering impurities is arranged in the second connecting hole.
The air whistle provided by the invention has the beneficial effects that: compared with the prior art, when the air whistle is used, the air source or the compressed air source is connected to the air source connecting part, air penetrates through the air source connecting part and enters the first air chamber in the air whistle seat, the air interacts with the sound production structure in the first air chamber to enable the sound production structure to deform and produce sound through the horn, the frequency of the sound production structure deforming and recovering forms the sound production frequency of the air whistle, the space between the sound production structure and the frequency modulation seat is changed by adjusting the distance of the frequency modulation seat extending into the opening cavity, the deformation amount of the sound production structure facing the second air chamber is different, the time of the sound production structure returning to the original shape is changed along with the space size of the second air chamber, and the frequency of the air whistle is further changed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a wind whistle provided in an embodiment of the present invention;
fig. 2 is a left side view of a siren provided by an embodiment of the present invention;
fig. 3 is an exploded view of a wind whistle according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1. a frequency modulation base; 2. a fixing ring; 3. a membrane; 4. a second bolt; 5. a first gasket; 6. a pronunciation mouth; 7. a whistle base; 8. a first lock nut; 9. a horn fixing sleeve; 10. a horn; 11. a first bolt; 12. a second gasket; 13. a filter screen; 14. an air pipe joint; 15. a card sleeve; 16. a second lock nut; 17. an air exhaust hole; 18. installing a notch; 19. a first connection hole; 20. a second connection hole; 21. a first air chamber; 22. a second air chamber.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3, a flute according to the present invention will now be described. A wind whistle comprises a wind whistle seat 7, a sounding structure, a loudspeaker 10, a frequency modulation seat 1 and a wind source connecting part, wherein the wind whistle seat 7 is provided with a hollow cavity for gas flowing and sounding; the sounding structure is arranged in the hollow cavity and is used for dividing the hollow cavity into a first air chamber 21 and an opening cavity; the horn 10 is fixedly arranged on the whistle base 7 and communicated with the sounding structure; the frequency modulation base 1 is used for covering the opening cavity and forming a second air chamber 22 between the opening cavity and the sounding structure; the frequency modulation base 1 is movably connected to the whistle base 7 along the opening direction of the opening cavity; the wind source connecting part is arranged on the wind whistle seat 7, is positioned between the sounding structure and the loudspeaker 10, and is communicated with the first air chamber 21 for introducing air.
Compared with the prior art, when the air whistle provided by the invention is used, an air source or a compressed air source is connected to an air source connecting part, air passes through the air source connecting part and enters a first air chamber 21 in a whistle seat 7, the air interacts with a sounding structure in the first air chamber 21 to enable the sounding structure to deform and send sound through a loudspeaker 10, the deformed and recovered frequency of the sounding structure forms the sounding frequency of the whistle, the space between the sounding structure and the frequency modulation seat 1 is changed by adjusting the distance that the frequency modulation seat 1 extends into an open cavity, the pressure applied to the sounding structure after the sounding structure deforms towards a second air chamber 22 is different, the purpose of changing the frequency of the sounding structure after the sounding structure recovers the original shape is achieved, and the frequency of the whistle is changed.
The sound production structure is located the cavity intracavity, and with the cavity intracavity for the second air chamber 22 that is close to frequency modulation seat 1 and the first air chamber 21 that is close to loudspeaker 10, the wind regime enters into and makes the sound production structure warp in the first air chamber 21, reaches the purpose of exhaust sound production, and the pressure in the first air chamber 21 is less than the pressure in the second air chamber 22 to the sound production structure resumes the non-deformation state. In the process of continuously inputting the gas, the sounding structure is repeatedly deformed, and the whistle frequency is formed. The size of the second air chamber 22 can be realized by adjusting the frequency modulation base 1 and the depth of the second air chamber 22, the larger the second air chamber 22 is, the longer the period of the sound production structure for recovering deformation is, and the lower the frequency is; on the contrary, the smaller the second air chamber 22, the shorter the period of the sound generating structure recovering deformation, and the lower the frequency, thereby achieving the effect of adjusting the whistle frequency. The adjusting mode is simple and flexible. One side that frequency modulation seat 1 stretched into well cavity is equipped with the mounting groove, be equipped with in the mounting groove with mounting groove sliding fit's extension piece, extend the piece can bulge or withdraw to the mounting groove in, when frequency modulation seat 1 all stretched into still unsatisfied requirement to well cavity, can pull out one end with extending the piece earlier, improve the volume size that occupies of frequency modulation seat 1 in the cavity. The side face of the extension block, which is in sliding fit with the mounting groove, is provided with an elastic bulge, so that the extension block can be clamped conveniently.
Referring to fig. 1 and 3, as a specific embodiment of the flute provided by the present invention, an internal thread is provided on the flute seat 7, an external thread connected with the internal thread is provided on the outer wall of the frequency modulation seat 1, the frequency modulation seat 1 is connected with the inner wall of the hollow cavity through the thread, the length of the frequency modulation seat 1 extending into the hollow cavity can be controlled by rotating the frequency modulation seat 1, and the size of the space between the frequency modulation seat 1 and the sound generating structure is changed in this way. The aim of adjusting the air whistle frequency is achieved. After the tuning seat 1 is adjusted, the tuning seat 1 needs to be fixed on the whistle seat 7. The frequency modulation base 1 can be provided with a threaded hole, and the relative positions of the frequency modulation base 1 and the whistle base 7 are fixed through the first bolt 11. The handle can be arranged on the frequency modulation seat 1, so that the frequency modulation seat 1 can be conveniently rotated. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Referring to fig. 1 to 3, as a specific embodiment of the flute provided by the present invention, an exhaust hole 17 for exhausting is formed in the frequency modulation base 1, after air passes through the air source connection portion and enters the hollow cavity, the air is accumulated in the hollow cavity between the sounding structure and the horn 10, a pressure difference is generated between the left side and the right side of the sounding structure, the pressure on the right side is high, the sounding structure elastically deforms toward one side of the frequency modulation base 1, so that the sounding structure is opened and sounds, air flow enters the horn 10 to be blown out, and meanwhile, the air on the left side of the sounding structure is exhausted through the exhaust hole 17 in the frequency modulation base 1. The cover body used for covering the exhaust holes can be arranged on the frequency modulation base 1, and the cover body is internally provided with a flow guide hole used for guiding gas to flow downwards so as to prevent the gas from erupting to workers.
Referring to fig. 1 and 2, as a specific embodiment of the flute provided by the present invention, the outer side surface of the frequency modulation base 1 is a tooth-shaped structure 18, the frequency modulation base 1 and the flute base 7 are positioned by a first bolt 11 penetrating through the tooth-shaped structure 18, the outer side surface of the frequency modulation base 1 is the tooth-shaped structure 18, and the flute base 7 is provided with a plurality of threaded holes corresponding to the tooth-shaped structure 18, so that after the frequency modulation base 1 is rotated, the tooth-shaped structure 18 still has a threaded hole corresponding to the threaded hole on the flute base 7, and the relative position of the rotated frequency modulation base 1 and the flute base 7 is positioned by the first bolt 11 penetrating through the tooth-shaped structure 18 and the threaded hole. The first bolt 11 is sleeved with the second gasket 12, and the fixing effect of the first bolt 11 is firmer through the second gasket 12.
Referring to fig. 1 and 3, as a specific embodiment of the flute provided by the present invention, the sound generating structure includes a diaphragm 3 and a sound generating nozzle 6, the diaphragm 3 is disposed in the hollow cavity and fixed on the flute seat 7, and the second air chamber 22 is formed between the diaphragm 3 and the frequency modulation seat 1; one end of the sounding mouth 6 is abutted against one side of the diaphragm 3 far away from the second air chamber 22, and the other end is fixed on the whistle seat 7 and communicated with the horn 10; the membrane 3 and the sound-emitting mouth 6 enclose a hollow cavity as a first air chamber 21. Frequency modulation seat 1 is connected with second air chamber 22, diaphragm 3 sets up the intermediate position in cavity, divide into the second air chamber 22 that is close to frequency modulation seat 1 and the first air chamber 21 that is close to loudspeaker 10 with well cavity, the wind regime enters into and gathers in the first air chamber 21, make diaphragm 3 towards second air chamber 22 elastic deformation, thereby open the connected state between diaphragm 3 and the pronunciation mouth 6, the air current enters into pronunciation mouth 6 through the gap between pronunciation mouth 6 and the diaphragm 3, and make pronunciation mouth 6 sound production, then gas passes pronunciation mouth 6 and is blown out by loudspeaker 10 mouth, simultaneously, the gas in the second air chamber 22 is discharged through exhaust vent 17 on frequency modulation seat 1. After the gas is discharged from the mouthpiece 6, the pressure in the first air chamber 21 is lower than the pressure in the second air chamber 22, and the diaphragm 3 is restored to the non-deformed state. In the process of continuously inputting the wind source, the diaphragm 3 repeats the actions to form the whistle frequency. The size of the second air chamber 22 can be realized by adjusting the screwing depths of the frequency modulation base 1 and the whistle base 7, and the larger the second air chamber 22 is, the longer the period of single elastic deformation of the diaphragm 3 is, and the lower the frequency is; conversely, the smaller the second air chamber 22, the shorter the period of single elastic deformation of the diaphragm 3, and the lower the frequency, thereby achieving the effect of adjusting the whistle frequency. The membrane 3 may be a double membrane 3. The speed of the gas in the first air chamber 21 passing through the sound producing nozzle 6 is higher than that of the gas in the second air chamber 22 passing through the exhaust hole 17, and after the gas is exhausted from the sound producing nozzle 6, the pressure in the first air chamber 21 is lower than that in the second air chamber 22, so that the diaphragm 3 is restored to the non-deformed state. Be equipped with the spacing platform that is used for spacing pronunciation mouth 6 mounted position on the inner wall of well cavity for the cooperation is installed pronunciation mouth 6, makes pronunciation mouth 6 install fast accurate, raises the efficiency. It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Referring to fig. 1 and 3, as a specific embodiment of the whistle provided by the present invention, a fixing ring 2 is disposed on a side of a diaphragm 3 away from a horn 10, the fixing ring 2 is disposed with a plurality of first through holes, the diaphragm 3 is disposed with a plurality of second through holes corresponding to the first through holes, a whistle seat 7 is disposed with threaded holes corresponding to the first through holes and the second through holes, the diaphragm 3 and the fixing ring 2 are fixedly connected to the whistle seat 7 by second bolts 4 penetrating the first through holes, the second through holes and the threaded holes, the mounting surface is arranged on the inner wall of the hollow cavity of the whistle seat 7, the diaphragm 3 is firstly propped against the mounting surface, then establish solid fixed ring 2 pressure on diaphragm 3 to make each first through-hole and second through-hole align, use second bolt 4 to pass first through-hole and second through-hole and screw hole, reach the purpose of fixed diaphragm 3, it is better to fix the effect through solid fixed ring 2. And the first gasket 5 is sleeved on the second bolt 4 to enhance the fixing effect. The fixing ring 2 is made of a thin annular sheet made of a thin metal material.
Referring to fig. 1 and 3, as a specific embodiment of the flute according to the present invention, a first connection hole 19 communicated with a first air chamber 21 is formed at a side of the flute base 7 close to the horn 10, the other end of the sound nozzle 6 is fixedly connected to one end of the first connection hole 19, the horn 10 is fixedly connected to the other end of the first connection hole 19, the sound nozzle 6 is fixedly connected and communicated with a left end of the first connection hole 19, the horn 10 is fixedly connected and communicated with a right end of the first connection hole 19, the sound nozzle 6 is communicated with the horn 10 in this way, an air flow enters the sound nozzle 6 through a gap between the sound nozzle 6 and the diaphragm 3, the sound nozzle 6 sounds, and then the air flows through the first connection hole 19, enters the horn 10 and is discharged. An internal thread may be provided on an inner wall of the first connection hole 19, and the other end of the sound-emitting nozzle 6 and one end of the horn 10 are provided with an external thread to be matched with the internal thread.
Referring to fig. 1 and 3, as a specific embodiment of the wind whistle provided by the present invention, a horn fixing sleeve 9 for fixedly connecting with a horn 10 is disposed at the other end of the first connection hole 19, an external thread is disposed on an outer side surface of the horn fixing sleeve 9, and is in threaded connection with an inner wall of the first connection hole 19, and then the horn 10 is in threaded connection with the horn fixing sleeve 9, so that the horn 10 can be conveniently mounted, dismounted, and replaced. The first locking nut 8 is sleeved on the outer side surface of the horn fixing sleeve 9, and the horn fixing sleeve 9 is locked by the first locking nut 8 after being installed in the first connecting hole 19 through the horn fixing sleeve 9. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 3, as an embodiment of the air whistle provided by the present invention, the air source connecting portion includes a second connecting hole 20 and an air pipe joint 14, the second connecting hole 20 is disposed on the whistle base 7 and is communicated with the first air chamber 21; one end of the air pipe joint 14 extends into the second connecting hole 20 and is communicated with the first air chamber 21, the other end of the air pipe joint is used for connecting an air source, the second connecting hole 20 is arranged to be a stepped hole, one end of the air pipe joint 14 is installed on a stepped surface in the second connecting hole 20, then the air source is directly connected to the other end of the air pipe joint 14 and is inflated into the air pipe joint 14, and the air source can be quickly and firmly connected in the mode. The air pipe joint 14 adopts a tubular structure, a shoulder is arranged on the outer side surface of the tubular structure and is abutted against the whistle seat 7, external threads are respectively arranged at two ends of the tubular structure, one end of the tubular structure extends into the second connecting hole 20 and is connected with the second connecting hole 20, and the external threads at the other end of the tubular structure are sleeved with a second locking nut 16. The clamping sleeve 15 is arranged in the air pipe joint 14, the clamping sleeve 15 is installed in the air pipe joint 14 in a matched mode, and when the air pipe joint 14 is locked through the second locking nut 16, the clamping sleeve 15 is pressed in the air pipe joint 14 through the second locking nut 16 to form effective sealing connection.
Referring to fig. 1 and 3, as a specific embodiment of the air whistle provided by the present invention, a filter 13 for filtering impurities is disposed in the second connection hole 20, the filter 13 is disposed in the air pipe joint 14, and when the air source passes through the air pipe joint 14 and the second connection hole 20, the filter 13 filters part of impurities in the air source, so as to ensure the normal operation of the air whistle. Meanwhile, impurities are reduced from entering the whistle seat 7, the diaphragm 3 can be effectively protected, the sounding mouth 6 is not damaged, the sounding effect of the whistle is improved, and the service life of the whistle is prolonged.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The air whistle, its characterized in that includes:
the whistle seat is provided with a hollow cavity for the flowing of air to produce sound;
the sounding structure is arranged in the hollow cavity and is used for dividing the hollow cavity into a first air chamber and an opening cavity;
the horn is fixedly arranged on the whistle seat and is communicated with the sounding structure;
the frequency modulation seat is used for covering the opening cavity and forming a second air chamber between the opening cavity and the sounding structure; the frequency modulation base is movably connected to the air whistle base along the opening direction of the opening cavity;
the wind regime connecting portion is located on the air whistle seat, be located the sound production structure with between the loudspeaker, and with first air chamber intercommunication for let in the air.
2. The air whistle of claim 1 wherein the air whistle base has an internal thread, and the frequency tuning base has an external thread on an outer wall thereof, the external thread being in threaded engagement with the internal thread.
3. The air whistle of claim 1 wherein the tuning base is provided with an exhaust hole for exhausting air.
4. The air whistle of claim 1 wherein an outer side surface of the tuning seat is a toothed structure, and the tuning seat and the whistle seat are positioned by a first bolt passing through the toothed structure.
5. The flute according to claim 1, wherein the sound emitting structure comprises:
the diaphragm is arranged in the hollow cavity and fixed on the whistle seat, and the second air chamber is formed between the diaphragm and the frequency modulation seat;
one end of the sounding nozzle is abutted against one side of the diaphragm, which is far away from the second air chamber, and the other end of the sounding nozzle is fixed on the whistle seat and communicated with the horn;
the diaphragm and the sounding mouth enclose the hollow cavity into a first air chamber.
6. The flute according to claim 5, wherein a fixing ring is provided on a side of the diaphragm away from the horn, the fixing ring is provided with a plurality of first through holes, the diaphragm is provided with a plurality of second through holes corresponding to the first through holes, the flute holder is provided with threaded holes corresponding to the first through holes and the second through holes, and the diaphragm and the fixing ring are fixedly connected to the flute holder by second bolts passing through the first through holes, the second through holes and the threaded holes.
7. The wind whistle of claim 5 wherein a side of the wind whistle base adjacent to the horn is provided with a first connection hole communicating with the first air chamber, the other end of the sounding mouth is fixedly connected with one end of the first connection hole, and the horn is fixedly connected with the other end of the first connection hole.
8. The flute according to claim 7, wherein a horn securing sleeve for securing connection with the horn is provided on the other end of the first connecting hole.
9. The air whistle of claim 1 wherein the wind source connection includes:
the second connecting hole is formed in the whistle seat and communicated with the first air chamber;
and one end of the air pipe joint extends into the second connecting hole and is communicated with the first air chamber, and the other end of the air pipe joint is used for connecting an air source.
10. The air whistle of claim 9 wherein a filter screen for filtering impurities is provided in the second connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615314.5A CN112216261A (en) | 2019-07-09 | 2019-07-09 | Air whistle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615314.5A CN112216261A (en) | 2019-07-09 | 2019-07-09 | Air whistle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112216261A true CN112216261A (en) | 2021-01-12 |
Family
ID=74047335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910615314.5A Pending CN112216261A (en) | 2019-07-09 | 2019-07-09 | Air whistle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112216261A (en) |
Citations (10)
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|---|---|---|---|---|
| FR740828A (en) * | 1931-08-08 | 1933-02-01 | Moto Meter Gauge And Equipment | Electric acoustic warning device |
| GB676375A (en) * | 1949-08-24 | 1952-07-23 | Vickers Armstrongs Ltd | Improvements in or relating to sound producing instruments |
| US3477405A (en) * | 1967-07-19 | 1969-11-11 | Ford Motor Co | Adjustable frequency horn |
| CN201378423Y (en) * | 2009-04-20 | 2010-01-06 | 上海国之鼎铁路机电有限公司 | Horn used for railway locomotive and CRH train |
| WO2010150091A1 (en) * | 2009-06-26 | 2010-12-29 | Michel Le Pimpec | Apparatus for learning to play and practicing the bagpipe |
| CN204904810U (en) * | 2015-08-20 | 2015-12-23 | 青岛长胜铁路车辆配件厂 | Air whistle of controllable decibel value and frequency |
| CN206236423U (en) * | 2016-12-13 | 2017-06-09 | 南京越博动力系统股份有限公司 | A kind of Frequency Adjustable heimholtz resonator |
| CN207311484U (en) * | 2017-10-12 | 2018-05-04 | 中车唐山机车车辆有限公司 | Bagpipe apparatus and system |
| CN207849410U (en) * | 2017-12-18 | 2018-09-11 | 青岛凯能环保科技股份有限公司 | Diaphragm type acoustic wave ash ejector |
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-
2019
- 2019-07-09 CN CN201910615314.5A patent/CN112216261A/en active Pending
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|---|---|---|---|---|
| FR740828A (en) * | 1931-08-08 | 1933-02-01 | Moto Meter Gauge And Equipment | Electric acoustic warning device |
| GB676375A (en) * | 1949-08-24 | 1952-07-23 | Vickers Armstrongs Ltd | Improvements in or relating to sound producing instruments |
| US3477405A (en) * | 1967-07-19 | 1969-11-11 | Ford Motor Co | Adjustable frequency horn |
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| WO2010150091A1 (en) * | 2009-06-26 | 2010-12-29 | Michel Le Pimpec | Apparatus for learning to play and practicing the bagpipe |
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