CN204904810U - Air whistle of controllable decibel value and frequency - Google Patents
Air whistle of controllable decibel value and frequency Download PDFInfo
- Publication number
- CN204904810U CN204904810U CN201520629751.XU CN201520629751U CN204904810U CN 204904810 U CN204904810 U CN 204904810U CN 201520629751 U CN201520629751 U CN 201520629751U CN 204904810 U CN204904810 U CN 204904810U
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- Prior art keywords
- bagpipe
- decibel value
- frequency
- valve body
- air whistle
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Abstract
The utility model provides an air whistle of controllable decibel value and frequency, be equipped with the boss be the cylinder air whistle body front end for threaded connection loudspeaker and describe an air whistle section of thick bamboo, the side is the joint body of connecting the air supply pipeline, air whistle body boss rear end is the valve body, the end cover, the valve body four corners respectively is equipped with the fixing bolt who passes the end cover, the valve body inner chamber is equipped with sound board, moreover, the steam generator is simple in structure, easy operation, easy installation, after accomplishing, each part equipment need not the debugging, need not any locking operation, can set for decibel value and frequency according to the demand, satisfy the environmental protection requirement.
Description
Technical field
The utility model relates to a kind ofly to blow a whistle the controlled decibel value of system and the bagpipe of frequency for railway locomotive.
Background technology
In train travelling process, bagpipe is used to play warning function, along with the attention to environmental problem, the requirement increasingly stringent of neighbourhood noise, different regions require different to Standard of Environmental Noise, in the urban district of areal with urban district external noise standard-required also different, and existing bagpipe decibel value and frequency unadjustable, the requirement of user in zones of different can not be met.
The patent No. be 201120229410.5 utility model patent disclose one can accordatura amount bagpipe, when air pressure definite value, the size of horn body gas flow is regulated by adjustment needle-valve, adjust the volume of bagpipe, after bagpipe meets the requirements of decibel value, need set nut to lock, this bagpipe can only determine decibel value under the condition of level pressure, controlled audio parameter is only limitted to decibel value, cannot determine the frequency of sound.
Summary of the invention
In order to technical matters to be solved is for the deficiency existing for prior art, the utility model provides the bagpipe of a kind of controlled decibel value and frequency, structure is simple, easy to operate, easily install, without the need to debugging after each assembling parts completes, without the need to any lock operation, decibel value and frequency can be set according to demand, meet environmental requirement.
The purpose of this utility model realizes like this, the bagpipe of a kind of controlled decibel value and frequency, be provided with the boss cylindrical bagpipe body front end horn-like bagpipe cylinder that is threaded, side is the fittings body connecting source of the gas pipeline, bagpipe body boss rear end is valve body, end cap, valve body corner is respectively provided with the set bolt through end cap, body cavity is provided with pronunciation board, being fixed on by bagpipe with set bolt, locomotive blows a whistle in system, during use, pressurized air enters intracoelomic cavity by fittings body, make pronunciation board do regular vibration and sounded by the discharge of bagpipe cylinder, by adjustment bagpipe cylinder moulding (length, radian, bagpipe cylinder diameter) audible frequency and decibel value can be controlled, structure is simple, easy to operate, easy installation, without the need to debugging after each assembling parts completes, without the need to any lock operation, decibel value and frequency can be determined according to customer requirement.
Feature of the present utility model is, by changing, bagpipe tube length is short, cambered surface degree, bagpipe cylinder diameter realize, and require finally to determine according to user for its pronouncing frequency and pronunciation decibel value.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is left view of the present utility model.
In figure: 1, bagpipe cylinder; 2, bagpipe body; 3, fittings body; 4, valve body; 5, end cap; 6, boss; 7, pronunciation board; 8, fastening bolt.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in the figure, be provided with the boss 6 cylindrical bagpipe body 2 front end horn-like bagpipe cylinder 1 that is threaded, side is the fittings body 3 connecting source of the gas pipeline, boss 6 rear end of bagpipe body 2 is valve bodies 4, end cap 5, valve body 4 four jiaos is respectively provided with the set bolt 8 through end cap 5, valve body 4 inner chamber is provided with pronunciation board 7, being fixed on by bagpipe with set bolt 8, locomotive blows a whistle in system, during use, pressurized air enters valve body 4 inner chamber by fittings body 3, make pronunciation board 7 do regular vibration and sounded by bagpipe cylinder 1 discharge, by adjustment bagpipe cylinder 1 moulding (length, radian, bagpipe cylinder diameter) audible frequency and decibel value can be controlled, structure is simple, easy to operate, easy installation, without the need to debugging after each assembling parts completes, without the need to any lock operation, decibel value and frequency can be determined according to customer requirement.
In sum; the utility model structure is simple; easy to operate, easily install; without the need to debugging after each assembling parts completes, without the need to any lock operation, decibel value and frequency can be set according to demand; meet environmental requirement; be illustrated the utility model by way of example above, but the utility model is not limited to above-mentioned specific embodiment, all any changes of doing based on the utility model or modification all belong to the claimed scope of the utility model.
Claims (2)
1. a bagpipe for controlled decibel value and frequency, is characterized in that: be provided with the boss cylindrical bagpipe body front end horn-like bagpipe cylinder that is threaded, side be connect the fittings body of source of the gas pipeline, bagpipe body boss rear end is valve body, end cap.
2. the bagpipe of a kind of controlled decibel value according to claim 1 and frequency, is characterized in that: valve body corner is respectively provided with the set bolt through end cap, and body cavity is provided with pronunciation board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520629751.XU CN204904810U (en) | 2015-08-20 | 2015-08-20 | Air whistle of controllable decibel value and frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520629751.XU CN204904810U (en) | 2015-08-20 | 2015-08-20 | Air whistle of controllable decibel value and frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204904810U true CN204904810U (en) | 2015-12-23 |
Family
ID=54926971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520629751.XU Active CN204904810U (en) | 2015-08-20 | 2015-08-20 | Air whistle of controllable decibel value and frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204904810U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216261A (en) * | 2019-07-09 | 2021-01-12 | 中车唐山机车车辆有限公司 | Air whistle |
| CN113450740A (en) * | 2021-06-30 | 2021-09-28 | 杨帆 | Musical instrument rotary valve |
-
2015
- 2015-08-20 CN CN201520629751.XU patent/CN204904810U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216261A (en) * | 2019-07-09 | 2021-01-12 | 中车唐山机车车辆有限公司 | Air whistle |
| CN113450740A (en) * | 2021-06-30 | 2021-09-28 | 杨帆 | Musical instrument rotary valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |