CN217687492U - Portable noise measuring device for open type box girder structure - Google Patents
Portable noise measuring device for open type box girder structure Download PDFInfo
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- CN217687492U CN217687492U CN202220184694.9U CN202220184694U CN217687492U CN 217687492 U CN217687492 U CN 217687492U CN 202220184694 U CN202220184694 U CN 202220184694U CN 217687492 U CN217687492 U CN 217687492U
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- main rod
- rod
- noise
- box girder
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Abstract
The utility model relates to a noise measuring device field specifically is a portable measuring device of open box girder structure noise. The noise measurement device comprises a main rod, a support rod, noise measurement equipment, a triangular support, a support piece, a switch and a buckle; the main rod and the branch rod are both of an electric control telescopic structure; four groups of branch bars are arranged along the periphery of the bottom end of the main rod, and one end of each group of branch bars is hinged with the main rod; the noise measuring equipment is arranged at the other end of the strut and the bottom of the main rod; the supporting piece is arranged on the main rod; the triangular support is arranged at the top end of the main rod; the buckle is arranged on the triangular bracket; the switch is arranged on the main rod. The utility model discloses be fixed in the A-frame on the case roof beam roof to pass the air vent of case roof beam bottom plate. The noise measuring equipment is placed at the positions of 0.3m on the surfaces of the web plate, the bottom plate and the flange plate of the measuring box girder by reasonably controlling the lengths of the main rod and the supporting rod and the opening angle of the supporting rod, so that the flexible measurement of noise is realized, the limitation of the traditional measuring method is avoided, and the measuring efficiency is improved.
Description
Technical Field
The utility model relates to a noise measurement device field especially relates to a portable measuring device of open box girder structure noise.
Background
At present: the box girder is used as a main bridge structure form and is widely applied to bridges of roads, expressways, railways, expressways, rail transit and the like. The box girder may be divided into a concrete box girder, a steel box girder, and a combined box girder. In recent years, the mileage of a high-speed railway is continuously increased, a plurality of high-speed railway lines pass through residential areas, and the noise problem is obvious; and with the continuous improvement of the design speed per hour of the high-speed railway, the noise is also larger and larger. It is necessary to study the noise characteristics of the different box girders by carrying out field tests. According to the noise test specification ISO3095, when the structural slab structure noise is measured, a sensor is placed at a position 0.3m away from the surface of a slab (ISO 3095), and the traditional test method consumes time when a scaffold is arranged at the lower part of a box girder to erect a microphone to a measuring position with a high elevation, is inconvenient to use and is difficult to meet the requirement of flexible noise measurement. Therefore, the portable box girder structure noise measuring device is designed to overcome the defects of the existing method and improve the measuring efficiency.
Through the above analysis, the problems and defects of the prior art are as follows: when the existing box girder structure noise measurement method is used for production test when the elevation of a bridge is high, the time consumed for installing test devices is long, and the turnover use is inconvenient.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the background art, the portable noise measuring device with the expanding box girder structure is provided. The utility model discloses be fixed in the A-frame on the case roof beam roof to pass the air vent of case roof beam bottom plate. The noise measuring equipment is placed at the positions of 0.3m on the surfaces of the web plate, the bottom plate and the flange plate of the measuring box girder by reasonably controlling the lengths of the main rod and the branch rod and the opening angle of the branch rod, so that the flexible measurement of noise is realized, the limitation of the traditional measuring method is avoided, and the measuring efficiency is improved.
The utility model provides a portable noise measuring device of an expanding box girder structure, which comprises a main rod, a support rod, noise measuring equipment, a triangular bracket, a support piece, a switch and a buckle; the main rod and the branch rod are both of an electric control telescopic structure; four groups of branch bars are arranged along the periphery of the bottom end of the main rod, and one end of each group of branch bars is hinged with the main rod; the noise measuring equipment is arranged at the other end of the branch rod and the bottom of the main rod; the supporting piece is arranged on the main rod and controls the opening and closing of the supporting rod; the triangular bracket is arranged at the top end of the main rod; the buckle is arranged on the triangular bracket; the switch is arranged on the main rod and controls the extension and retraction of the main rod and the branch rod.
The supporting piece comprises a plurality of groups of supporting frames and springs; the spring is arranged along the main rod; the support frame is Y type rotatable structure, and two sets of inclined ends connect the both ends of spring, and the vertical end is connected branch.
Preferably, the sliding grooves are formed in the periphery of the main rod and used for retracting the supporting rods.
Preferably, a circuit channel is arranged in the main rod and the branch rod, and a circuit of the noise measuring equipment passes through the circuit channel.
Preferably, the material of the main rod is carbon fiber.
Preferably, the noise measuring device is a microphone.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses an AB glue is fixed in the A-frame on the case roof beam roof to pass the air vent of case roof beam bottom plate. The noise measuring equipment is placed at the positions of 0.3m (according to the ISO3095 standard) on the surfaces of the web plate, the bottom plate and the flange plate of the measuring box girder by reasonably controlling the lengths of the main rod and the branch rod and the opening angle of the branch rod, so that the flexible measurement of noise is realized, the limitation of the traditional measuring method is avoided, and the measuring efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an installation diagram of an embodiment of the present invention;
fig. 3 is a schematic view of a connection structure of the main rod and the support rod according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of the buckle in an embodiment of the present invention.
Reference numerals: 1. a main rod; 2. a strut; 3. a noise measurement device; 4. a triangular bracket; 5. a support frame; 6. a spring; 7. a switch; 8. buckling; 9. a chute; 10. and (4) a box girder.
Detailed Description
Example one
As shown in fig. 1-4, the portable noise measuring device with an expanding box girder structure provided by the present invention comprises a main rod 1, a support rod 2, a noise measuring device 3, a triangular support 4, a support member, a switch 7 and a buckle 8; the main rod 1 and the branch rod 2 are both of an electric control telescopic structure; four groups of the supporting rods 2 are arranged along the periphery of the bottom end of the main rod 1, and one end of each group of the supporting rods 2 is hinged with the main rod 1; the noise measuring equipment 3 is arranged at the other end of the strut 2 and the bottom of the main rod 1; the supporting piece is arranged on the main rod 1 and controls the opening and closing of the supporting rod 2; the triangular bracket 4 is arranged at the top end of the main rod 1; the buckle 8 is arranged on the triangular bracket 4; the switch 7 is arranged on the main rod 1 and controls the extension and retraction of the main rod 1 and the branch rod 2.
The support comprises a plurality of groups of support frames 5 and springs 6; the spring 6 is arranged along the main rod 1; the support frame 5 is a Y-shaped rotatable structure, two groups of inclined ends are connected with two ends of the spring 6, and a vertical end is connected with the supporting rod 2.
Example two
As shown in fig. 1-4, the portable noise measuring device with an open box girder structure provided by the present invention comprises a main rod 1, a support rod 2, a noise measuring device 3, a triangular bracket 4, a support member, a switch 7 and a buckle 8; the main rod 1 and the branch rod 2 are both of an electric control telescopic structure; four groups of the supporting rods 2 are arranged along the periphery of the bottom end of the main rod 1, and one end of each group of the supporting rods 2 is hinged with the main rod 1; the noise measuring equipment 3 is arranged at the other end of the strut 2 and the bottom of the main rod 1; the supporting piece is arranged on the main rod 1 and controls the opening and closing of the supporting rod 2; the triangular bracket 4 is arranged at the top end of the main rod 1; the buckle 8 is arranged on the triangular bracket 4; the switch 7 is arranged on the main rod 1 and controls the extension and retraction of the main rod 1 and the branch rod 2.
The support comprises a plurality of groups of support frames 5 and springs 6; the spring 6 is arranged along the main rod 1; the support frame 5 is a Y-shaped rotatable structure, two groups of inclined ends are connected with two ends of the spring 6, and a vertical end is connected with the supporting rod 2.
Furthermore, the main rod 1 is provided with sliding chutes 9 around for retracting the supporting rods 2.
Further, a circuit channel is arranged in the main rod 1 and the branch rod 2.
Further, the material of the main rod is carbon fiber.
Further, the noise measuring device 3 is a microphone.
The utility model discloses a AB glue is fixed in on the roof of case roof beam 10 with A-frame 4 to pass the air vent of case roof beam 10 bottom plates. The noise measuring equipment 3 is placed at the positions of 0.3m (according to the standard ISO 3095) on the surfaces of the web plate, the bottom plate and the flange plate of the measuring box girder 10 by reasonably controlling the lengths of the main rod 1 and the branch rod 2 and the opening angle of the branch rod 2, so that the flexible measurement of noise is realized, the limitation of the traditional measuring method is avoided, and the measuring efficiency is improved.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.
Claims (5)
1. The portable noise measuring device with the unfolded box girder structure is characterized by comprising a main rod (1), a support rod (2), noise measuring equipment (3), a triangular support (4), a support piece, a switch (7) and a buckle (8); the main rod (1) and the support rod (2) are both of an electric control telescopic structure; four groups of the supporting rods (2) are arranged along the periphery of the bottom end of the main rod (1), and one end of each group of the supporting rods (2) is hinged with the main rod (1); the noise measuring equipment (3) is arranged at the other end of the branch rod (2) and the bottom of the main rod (1); the supporting piece is arranged on the main rod (1); the triangular support (4) is arranged at the top end of the main rod (1); the buckle (8) is arranged on the triangular bracket (4); the switch (7) is arranged on the main rod (1);
the supporting piece comprises a plurality of groups of supporting frames (5) and springs (6); the spring (6) is arranged along the main rod (1); the support frame (5) is a Y-shaped rotatable structure, two groups of inclined ends are connected with two ends of the spring (6), and a vertical end is connected with the supporting rod (2).
2. The portable noise measuring device of the opening box girder structure according to claim 1, wherein the main rod (1) is provided with sliding grooves (9) around for retracting the supporting rods (2).
3. The portable measuring device of the noise of the opening box girder structure of claim 1, wherein the main rod (1) and the supporting rod (2) are provided with a line channel.
4. The portable acoustic portable measurement device of claim 1, wherein the material of the primary bar is carbon fiber.
5. The portable measuring device of the open box girder construction noise according to claim 1, characterized in that the noise measuring equipment (3) is a microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220184694.9U CN217687492U (en) | 2022-01-24 | 2022-01-24 | Portable noise measuring device for open type box girder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220184694.9U CN217687492U (en) | 2022-01-24 | 2022-01-24 | Portable noise measuring device for open type box girder structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217687492U true CN217687492U (en) | 2022-10-28 |
Family
ID=83728431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220184694.9U Active CN217687492U (en) | 2022-01-24 | 2022-01-24 | Portable noise measuring device for open type box girder structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217687492U (en) |
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2022
- 2022-01-24 CN CN202220184694.9U patent/CN217687492U/en active Active
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