CN210689806U - Noise detection device - Google Patents
Noise detection device Download PDFInfo
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- CN210689806U CN210689806U CN201922099316.1U CN201922099316U CN210689806U CN 210689806 U CN210689806 U CN 210689806U CN 201922099316 U CN201922099316 U CN 201922099316U CN 210689806 U CN210689806 U CN 210689806U
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- shell
- cantilever beam
- combined
- noise
- supporting structure
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Abstract
A noise detection device comprises a shell, a combined cantilever beam, a supporting structure and a detection unit; the shell is a closed shell, the supporting structure is arranged in the shell, a plurality of combined cantilever beams are arranged on the supporting structure, the end parts of the combined cantilever beams face the inner side wall of the shell, and the detection unit is arranged at the outer side end part of the shell; the combined cantilever beam is connected with the detection unit through a lead. The utility model discloses a noise detection device can detect construction environment noise, shows the size of noise according to the luminous of the different colours of emitting diode, and many places installation back, testing result shows more directly perceived, and detection efficiency is higher.
Description
Technical Field
The utility model belongs to the technical field of the noise detection, in particular to noise detection device.
Background
At present, various constructions are carried out all the time, but in recent years, noises generated by the constructions become main noises of cities. Environmental noise pollution is the phenomenon that the generated environmental noise exceeds the national regulations and interferes with normal life, work and study of other people. Noise can be harmful to residents and constructors, so that the noise condition in construction must be detected in the construction process. Before the construction project is put into production or used, the environmental noise pollution prevention and control facility of the national regulation must be checked and accepted by an environmental protection administrative department, and if the national regulation is not met, the construction project cannot be put into production or used. The existing noise detection tool has low detection efficiency, which influences project progress and work efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a noise detection device to solve above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a noise detection device comprises a shell, a combined cantilever beam, a supporting structure and a detection unit; the shell is a closed shell, the supporting structure is arranged in the shell, a plurality of combined cantilever beams are arranged on the supporting structure, the end parts of the combined cantilever beams face the inner side wall of the shell, and the detection unit is arranged at the outer side end part of the shell; the combined cantilever beam is connected with the detection unit through a lead.
Further, the detection unit comprises a light emitting diode and a filter; the four filters are arranged at the top of the shell, and the side surface of each filter is provided with a light emitting diode; the number of the combined cantilever beams is the same as that of the light-emitting diodes, and each light-emitting diode is connected to one combined cantilever beam through a lead.
Further, the housing is cylindrical and the four filters are each disposed within a ninety degree sector of the top of the housing.
Furthermore, the combined cantilever beam comprises a cantilever beam, a phononic crystal, a piezoelectric film and a first permanent magnet; the cantilever beam is covered with a layer of piezoelectric film, the phononic crystal is arranged on the lower surface of the cantilever beam, one end of the cantilever beam is fixedly connected with the supporting structure, the other end of the cantilever beam is fixedly provided with a first permanent magnet, and the first permanent magnet is connected with the light-emitting diode through a wire.
Furthermore, four second permanent magnets are arranged on the inner side wall of the shell, and the positions of the second permanent magnets correspond to those of the first permanent magnets.
Furthermore, the supporting structure comprises a support column and a disc, the support column is vertically arranged in the center of the bottom plate on the inner side of the shell, the disc is arranged at the top of the support column, and the combined cantilever beam is arranged on the disc in equal radian.
Compared with the prior art, the utility model discloses there is following technological effect:
the utility model discloses a noise detection device can detect construction environment noise, shows the size of noise according to the luminous of the different colours of emitting diode, and many places installation back, testing result shows more directly perceived, and detection efficiency is higher.
The utility model discloses simple structure, safe and reliable, the installation of being convenient for, convenient to use improves work efficiency and quality to and characteristics such as portable.
Drawings
Fig. 1 is a schematic view of the inner planing surface of the present invention.
Fig. 2 is an overall schematic diagram of the present invention.
Fig. 3 is a schematic view of the cantilever structure of the present invention.
The device comprises a phononic crystal-1, a piezoelectric film-2, a first permanent magnet-3, a shell-4, a second permanent magnet-5, a combined cantilever beam-6, a disc-7, a light emitting diode-8, a filter-9 and a support-10.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
referring to fig. 1 to 3, a noise detection apparatus includes a housing 4, a combined cantilever 6, a supporting structure and a detection unit; the shell 4 is a closed shell, the supporting structure is arranged inside the shell 4, the supporting structure is provided with a plurality of combined cantilever beams 6, the end parts of the combined cantilever beams 6 face the inner side wall of the shell 4, and the detection unit is arranged at the outer end part of the shell 4; the combined cantilever beam 6 is connected with the detection unit through a lead.
The detection unit comprises a light emitting diode 8 and a filter 9; four filters 9 are arranged at the top of the shell 4, and a light-emitting diode 8 is arranged on the side surface of each filter; the number of the combined cantilever beams 6 is the same as that of the light-emitting diodes, and each light-emitting diode 8 is connected to one combined cantilever beam 6 through a lead.
The housing 4 is cylindrical and the four filters are each disposed within a ninety degree sector of the top of the housing 4.
The combined cantilever beam 6 comprises a cantilever beam, a phononic crystal 1, a piezoelectric film 2 and a first permanent magnet 3; the cantilever beam is covered with a layer of piezoelectric film 2, the phononic crystal 1 is arranged on the lower surface of the cantilever beam, one end of the cantilever beam is fixedly connected with the supporting structure, the other end of the cantilever beam is fixedly provided with a first permanent magnet, and the first permanent magnet 3 is connected with the light-emitting diode 8 through a wire.
Four second permanent magnets 5 are arranged on the inner side wall of the shell 4, and the positions of the second permanent magnets 5 correspond to those of the first permanent magnets 3.
The supporting structure comprises a support column 10 and a disc 7, wherein the support column 10 is vertically arranged in the center of the bottom plate on the inner side of the shell 4, the disc 7 is arranged at the top of the support column 10, and the combined cantilever beam 6 is arranged on the disc in an equal radian mode.
A detection method of a noise detection apparatus, comprising the steps of:
and 3, connecting one cantilever beam with one light emitting diode, and reflecting the noise according to the light emitting colors of different light emitting diodes.
A novel noise detection method and a device are characterized by comprising a phononic crystal, a piezoelectric film, a permanent magnet 1, a shell, a permanent magnet 2, a combined cantilever beam, a disc, four light emitting diodes, four filters and a support; the combined cantilever beam consists of a phonon crystal, a piezoelectric film and a permanent magnet 1, and the four combined cantilever beams are arranged on the disc and are connected with the light-emitting diode through four wires; the piezoelectric film completely covers the upper surface of the combined cantilever beam, and the permanent magnet 1 is placed at the tail part of the combined cantilever beam; the permanent magnet 2 is arranged on the inner surface of the shell and is parallel to the permanent magnet 1; four LEDs are mounted on the upper part of the whole device, and a disc is supported on the supporting column. Compared with the prior art, the novel noise detection method can be conveniently carried when noise measurement is carried out, and the working efficiency is improved.
Furthermore, the phononic crystal can absorb the energy of vibration with different frequencies in different structural forms, the vibration causes the piezoelectric film to generate current, and different light-emitting diodes emit light through the conducting wires to display the noise.
Furthermore, in order to enhance the directional sensitivity of the system to the vibration source in the real environment, each cantilever beam is a cantilever beam formed by combining a linear cantilever beam and an arched cantilever beam.
Furthermore, in order to realize that the noise detection device is matched with the environmental vibration sources with different frequencies, the resonant frequency of the cantilever beam structure can be adjusted by adjusting the distance between the permanent magnet 1 and the permanent magnet 2 to match the environmental vibration sources with different frequency ranges, and the energy collection efficiency is improved.
Further, the filters can select noise with different frequencies to pass through, so that the four filters are used for setting filtering with different frequencies to cause different cantilever beams to vibrate, and the noise is displayed through the light emitting of the light emitting diode.
Furthermore, the noise detection device does not need to be powered by an external power supply or an internal battery, and is convenient to use.
Claims (6)
1. A noise detection device is characterized by comprising a shell (4), a combined cantilever beam (6), a supporting structure and a detection unit; the shell (4) is a closed shell, the supporting structure is arranged inside the shell (4), the supporting structure is provided with a plurality of combined cantilever beams (6), the end parts of the combined cantilever beams (6) face the inner side wall of the shell (4), and the detection unit is arranged at the outer end part of the shell (4); the combined cantilever beam (6) is connected with the detection unit through a lead.
2. A noise detection arrangement according to claim 1, characterized in that the detection unit comprises a light emitting diode (8) and a filter (9); the four filters (9) are arranged at the top of the shell (4), and the side surface of each filter is provided with a light-emitting diode (8); the number of the combined cantilever beams (6) is the same as that of the light-emitting diodes, and each light-emitting diode (8) is connected to one combined cantilever beam (6) through a lead.
3. A noise detecting arrangement according to claim 2, characterized in that the housing (4) is cylindrical and that the four filters are each arranged in a ninety degree sector at the top of the housing (4).
4. A noise detecting arrangement according to claim 2, characterized in that the combined cantilever (6) comprises a cantilever, a phononic crystal (1), a piezoelectric film (2) and a first permanent magnet (3); the cantilever beam is covered with a layer of piezoelectric film (2), the phononic crystal (1) is arranged on the lower surface of the cantilever beam, one end of the cantilever beam is fixedly connected with the supporting structure, the other end of the cantilever beam is fixedly provided with a first permanent magnet, and the first permanent magnet (3) is connected with the light-emitting diode (8) through a wire.
5. A noise detecting arrangement according to claim 4, characterized in that four second permanent magnets (5) are arranged on the inner side wall of the housing (4), the positions of the second permanent magnets (5) corresponding to the first permanent magnets (3).
6. A noise detecting arrangement according to claim 1, characterized in that the supporting structure comprises a pillar (10) and a disc (7), the pillar (10) being arranged vertically in the centre of the inner bottom plate of the housing (4), the disc (7) being arranged on top of the pillar (10), the combined cantilever beam (6) being arranged in an equal arc on the disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922099316.1U CN210689806U (en) | 2019-11-28 | 2019-11-28 | Noise detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922099316.1U CN210689806U (en) | 2019-11-28 | 2019-11-28 | Noise detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210689806U true CN210689806U (en) | 2020-06-05 |
Family
ID=70899764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922099316.1U Expired - Fee Related CN210689806U (en) | 2019-11-28 | 2019-11-28 | Noise detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210689806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793620A (en) * | 2019-11-28 | 2020-02-14 | 长安大学 | Noise detection device and detection method |
-
2019
- 2019-11-28 CN CN201922099316.1U patent/CN210689806U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793620A (en) * | 2019-11-28 | 2020-02-14 | 长安大学 | Noise detection device and detection method |
| CN110793620B (en) * | 2019-11-28 | 2024-01-26 | 长安大学 | Noise detection device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20200605 Termination date: 20201128 |