A road noise monitoring and noise reduction device

Abstract

The utility model provides a kind of road noise monitoring and noise reduction device, comprising: noise reduction box, noise reduction box is installed in support frame top, noise reduction box inside is equipped with soundproofing cotton, several rows of hole groups are equidistantly opened on the rear side in noise reduction box interior, the hole group is all made of several groups of noise reduction holes, one noise reduction plate is equipped between the upper and lower adjacent two rows of hole groups, and several groups of noise reduction grooves are opened on the upper surface and lower surface of noise reduction plate, compared with prior art, the utility model has the beneficial effects as follows: by setting noise reduction box, traffic noise enters into noise reduction box interior through several groups of strip-shaped sound-absorbing holes opened on the front of monitoring plate, is first repeatedly bounced and weakened along noise reduction groove, then is repeatedly bounced and weakened for second time in noise reduction hole interior, and finally is absorbed and weakened by soundproofing cotton, so the final effect is that traffic noise can be significantly weakened, additional noise is prevented due to large wind force, and the harm of traffic noise is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of noise monitoring technology, and specifically relates to a road noise monitoring and noise reduction device. Background Technology

[0002] Road noise monitoring and reduction devices are comprehensive technical systems designed to address traffic noise pollution. They are primarily used to collect and analyze noise data in real time and employ physical or technical means to reduce the impact of noise on the surrounding environment. Their core functions include dynamic monitoring of noise sources, data transmission, pollution assessment, and active noise reduction intervention. In real life, urban traffic lines are dense, generating significant traffic noise during vehicle movement. If this traffic noise is not monitored and addressed, it will affect residents' daily lives and work. Existing road noise monitoring and reduction devices generally use sound barriers installed along both sides of the road to block noise. However, this method has drawbacks. Sound barriers typically have perforations and slots on their surface to enhance noise absorption; however, when external winds are strong, wind can pass through these perforations and slots, generating noise that mixes with traffic noise, thus creating even more noise. Therefore, a new structure is proposed to address these issues. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a road noise monitoring and noise reduction device to solve the problems mentioned in the background technology.

[0004] This utility model is achieved through the following technical solution: a road noise monitoring and noise reduction device, comprising: a noise reduction box, the noise reduction box being installed on the top of a support frame, the noise reduction box being provided with sound insulation cotton inside, and a number of rows of holes being equally spaced on the rear side inside the noise reduction box, each row of holes being composed of a number of noise reduction holes;

[0005] A noise reduction plate is provided between two adjacent rows of holes. Several noise reduction grooves are provided on the upper and lower surfaces of the noise reduction plate. A monitoring plate is fixed to the front of the noise reduction box by bolts. Several sound absorption holes are provided on the front of the monitoring plate.

[0006] In a preferred embodiment, the top of the noise reduction box is provided with a control mechanism, which includes a power supply module, a data receiving module, a data analysis module, and a data conversion module.

[0007] A display screen is installed on the top front of the monitoring board, and a noise sensor is provided on both the left and right sides of the display screen. A noise sensor of the same specification is installed on the back of the noise reduction box.

[0008] In a preferred embodiment, the sound insulation cotton is embedded inside the noise reduction box, and the areas where the sound insulation cotton and several sets of noise reduction holes are located are opposite each other. The noise reduction holes are a horn-shaped structure with a gradually decreasing diameter from front to back.

[0009] In a preferred embodiment, a group of noise-reducing holes arranged horizontally forms a hole group, and the hole group is arranged in several rows from top to bottom. The noise-reducing plates are respectively installed between two adjacent rows of hole groups.

[0010] In a preferred embodiment, the noise reduction grooves on the upper and lower surfaces of the noise reduction plate are of the same size and are mirror-symmetrically arranged, and the noise reduction grooves have a wave-shaped structure.

[0011] In a preferred embodiment, several groups of sound-absorbing holes are equidistantly distributed on the left and right sides of the front of the monitoring plate. The sound-absorbing holes are horizontal strip-shaped holes. A sound-concentrating plate is provided on the left and right sides of the back of the monitoring plate.

[0012] In a preferred embodiment, a storage box is provided below the monitoring board, and a dustproof board is stored inside the storage box. A dustproof mesh is glued to the inner side of the dustproof board, and a pull rod is provided on the top of the dustproof board. The dustproof board and the dustproof mesh are both made of stainless steel, and the dustproof board and the storage box are connected by a sliding rail and a buckle design.

[0013] In a preferred embodiment, a strip-shaped through hole is provided on the lower front of the monitoring plate to facilitate pulling the dustproof plate. The pull rod is located above the strip-shaped through hole, and the length and width of the dustproof plate match the length and width of the front of the monitoring plate.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are as follows: 1. By setting up a noise reduction box, sound insulation cotton is embedded inside the noise reduction box, and several rows of holes are equally spaced on the rear side of the noise reduction box. Each row of holes consists of several groups of noise reduction holes. A noise reduction plate is set between two adjacent rows of holes. Noise reduction grooves are opened on the upper and lower surfaces of the noise reduction plate. In actual use, traffic noise enters the noise reduction box through several groups of strip-shaped sound absorption holes on the front of the monitoring plate. The noise first passes through the gaps between several groups of noise reduction plates and is repeatedly bounced and weakened along the noise reduction grooves. The noise weakened once enters the noise reduction holes and is repeatedly bounced inside the noise reduction holes, thereby undergoing secondary weakening. Finally, it is absorbed and weakened by the sound insulation cotton. Therefore, the final effect is to significantly reduce traffic noise, prevent additional noise from being generated when the wind is strong, and greatly reduce the harm of traffic noise.

[0015] 2. By setting up a dustproof plate, which is stored inside the storage box, and by pulling the dustproof plate, the left and right sides of the dustproof plate have damping friction with the inside of the storage box, thus preventing the dustproof plate from falling due to its own weight. In actual use, pinch the lever and pull the dustproof plate upward to pull the dustproof plate out of the storage box, so that the dustproof net covers the front of the monitoring plate. At this time, the dustproof net serves two purposes: firstly, it prevents dust from entering the front of the monitoring plate and clogging the sound absorption holes; secondly, it weakens the wind force and prevents air from directly passing through the sound absorption holes and generating noise when the wind is strong. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a road noise monitoring and noise reduction device according to the present invention.

[0018] Figure 2 This is a schematic diagram of the internal structure of the noise reduction box in a road noise monitoring and noise reduction device of this utility model.

[0019] Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A in the middle.

[0020] Figure 4 This is a schematic diagram of the sound insulation cotton in a road noise monitoring and noise reduction device according to this utility model.

[0021] Figure 5 This is a schematic diagram of the back of the monitoring plate in a road noise monitoring and noise reduction device of this utility model.

[0022] In the diagram, 100 is the support frame, 110 is the storage box, and 120 is the dustproof plate.

[0023] 200-Noise reduction box, 210-Noise reduction hole, 220-Noise reduction board, 221-Noise reduction groove, 230-Sound insulation cotton;

[0024] 300 - Monitoring board, 310 - Noise sensor, 320 - Sound absorption hole, 330 - Sound focusing board. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 As the first embodiment of this utility model: a road noise monitoring and noise reduction device, including: a noise reduction box 200, the noise reduction box 200 is installed on the top of the support frame 100, the noise reduction box 200 is provided with sound insulation cotton 230 inside, and a number of rows of holes are equally spaced on the rear side inside the noise reduction box 200, each row of holes is composed of a number of noise reduction holes 210.

[0027] A noise reduction plate 220 is provided between two adjacent rows of holes. Several noise reduction grooves 221 are provided on the upper and lower surfaces of the noise reduction plate 220. A monitoring plate 300 is fixed to the front of the noise reduction box 200 by bolts. Several sound absorption holes 320 are provided on the front of the monitoring plate 300.

[0028] The top of the noise reduction box 200 is equipped with a control mechanism, which includes a power supply module, a data receiving module, a data analysis module, and a data conversion module.

[0029] A display screen is installed on the top front of the monitoring board 300, and a noise sensor 310 is installed on both the left and right sides of the display screen. A noise sensor 310 of the same specification is installed on the back of the noise reduction box 200.

[0030] The sound insulation cotton 230 is embedded inside the noise reduction box 200, and the areas where the sound insulation cotton 230 and several sets of noise reduction holes 210 are located are opposite each other. The noise reduction holes 210 are a horn-shaped structure with a gradually decreasing diameter from front to back.

[0031] Several groups of noise reduction holes 210 arranged horizontally form a hole group. The hole group is arranged in several rows from top to bottom. Several groups of noise reduction plates 220 are respectively installed between two adjacent rows of hole groups.

[0032] The noise reduction grooves 221 on the upper and lower surfaces of the noise reduction plate 220 are of the same size and are mirror-symmetrically arranged, and the noise reduction grooves 221 have a wave-shaped structure.

[0033] Several sets of sound-absorbing holes 320 are equidistantly distributed on the left and right sides of the front of the monitoring plate 300. The sound-absorbing holes 320 are horizontal strip-shaped hole structures. A sound-concentrating plate 330 is provided on the left and right sides of the back of the monitoring plate 300.

[0034] In actual use, the noise sensor 310 located on the upper left and right sides of the front of the monitoring board 300 can monitor traffic noise and then transmit the data to the control mechanism on the top of the noise reduction box 200. The noise data is converted by the control mechanism and displayed on the screen for easy viewing by the staff (the control mechanism, the screen and the noise sensor 310 are all existing technologies, and their internal structure and working principle will not be described in detail here). Traffic noise enters the rear of the monitoring board 300 through several sets of strip-shaped sound-absorbing holes 320, and then is gathered and transmitted to the interior of the noise reduction box 200 by two sets of sound-concentrating plates 330. After entering the noise reduction box 200, the noise is first transmitted to the rear along the gaps between several sets of noise reduction plates 220. During the transmission process, the noise bounces repeatedly between the noise reduction grooves 221 on the lower surface of the upper noise reduction plate 220 and the noise reduction grooves 221 on the upper surface of the lower noise reduction plate 220 and is transmitted to the rear, thereby reducing the noise.

[0035] The noise then enters the noise reduction hole 210. Since the noise reduction hole 210 is a horn-shaped structure with a gradually decreasing diameter from front to back, the noise is repeatedly ejected inside the noise reduction hole 210, thereby achieving secondary attenuation. The noise after secondary attenuation is absorbed and weakened by the sound insulation cotton 230. The weakened noise continues to be transmitted backward and is sensed by the noise sensor 310 installed on the back of the noise reduction box 200. The processed noise data is displayed on the screen. Therefore, the final effect is to significantly improve the noise reduction effect, prevent additional noise from being generated when the wind is strong, and greatly reduce the harm of traffic noise.

[0036] Please see Figures 1-5 As a second embodiment of this utility model: based on the description in the above embodiments, a storage box 110 is provided below the monitoring plate 300. The storage box 110 contains a dustproof plate 120. A dustproof net is glued to the inner side of the dustproof plate 120. A pull rod is provided on the top of the dustproof plate 120. The dustproof plate 120 and the dustproof net are both made of stainless steel. The dustproof plate 120 and the storage box 110 are connected by a sliding rail and a buckle design.

[0037] A strip-shaped through hole is provided on the lower front of the monitoring plate 300 to facilitate pulling the dustproof plate 120. The pull rod is located above the strip-shaped through hole, and the length and width of the dustproof plate 120 match the length and width of the front of the monitoring plate 300.

[0038] In actual use, pinch the lever and pull the dust cover 120 upwards to pull the dust cover 120 out from inside the storage box 110, thereby covering the front of the monitoring board 300. The dust cover 120 has a dustproof mesh glued to the inside, so the dustproof mesh can prevent dust from entering the front of the monitoring board 300 and blocking the sound absorption hole 320. At the same time, the dustproof mesh can also buffer the flowing air when the wind is strong, reducing the force of the air impacting the front of the monitoring board 300, thereby reducing the noise generated when the air passes through the sound absorption hole 320.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A road noise monitoring and reduction device, comprising: The noise reduction box (200) is characterized in that: the noise reduction box (200) is installed on the top of the support frame (100), the noise reduction box (200) is provided with sound insulation cotton (230) inside, and a number of rows of holes are equally spaced on the rear side inside the noise reduction box (200), each row of holes is composed of a number of noise reduction holes (210). A noise reduction plate (220) is provided between two adjacent rows of holes. Several noise reduction grooves (221) are provided on the upper and lower surfaces of the noise reduction plate (220). A monitoring plate (300) is fixed to the front of the noise reduction box (200) by bolts. Several sound absorption holes (320) are provided on the front of the monitoring plate (300).

2. The road noise monitoring and reduction device as described in claim 1, characterized in that: The top of the noise reduction box (200) is equipped with a control mechanism, which includes a power supply module, a data receiving module, a data analysis module, and a data conversion module; The monitoring board (300) has a display screen mounted on the top front, and a noise sensor (310) is provided on both the left and right sides of the display screen. The noise reduction box (200) has a noise sensor (310) of the same specification mounted on the back.

3. The road noise monitoring and reduction device as described in claim 1, characterized in that: The sound insulation cotton (230) is embedded inside the noise reduction box (200), and the areas where the sound insulation cotton (230) and several sets of noise reduction holes (210) are located are opposite each other. The noise reduction holes (210) are horn-shaped structures with a gradually decreasing diameter from front to back.

4. The road noise monitoring and reduction device as described in claim 3, characterized in that: A group of noise reduction holes (210) arranged horizontally forms a hole group. The hole group is arranged in several rows from top to bottom. The noise reduction plates (220) are respectively installed between two adjacent rows of hole groups.

5. The road noise monitoring and reduction device as described in claim 4, characterized in that: The noise reduction grooves (221) on the upper and lower surfaces of the noise reduction plate (220) are of the same size and are mirror-symmetrically arranged. The noise reduction grooves (221) have a wave-shaped structure.

6. The road noise monitoring and reduction device as described in claim 1, characterized in that: Several sets of sound-absorbing holes (320) are equidistantly distributed on the left and right sides of the front of the monitoring plate (300). The sound-absorbing holes (320) are horizontal strip-shaped hole structures. A sound-concentrating plate (330) is provided on the left and right sides of the back of the monitoring plate (300).

7. The road noise monitoring and reduction device as described in claim 6, characterized in that: Below the monitoring board (300) is a storage box (110), inside which a dustproof board (120) is stored. A dustproof mesh is glued to the inside of the dustproof board (120), and a pull rod is provided on the top of the dustproof board (120).

8. The road noise monitoring and reduction device as described in claim 7, characterized in that: The monitoring plate (300) has a strip-shaped through hole on the lower front side to facilitate pulling the dustproof plate (120). The pull rod is located above the strip-shaped through hole. The length and width of the dustproof plate (120) match the length and width of the front side of the monitoring plate (300).

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