Outdoor noise monitoring device

Abstract

The utility model discloses an outdoor noise monitoring device, which comprises a microphone mesh enclosure, an upper shell, a mounting bracket, a lamp ring, a lower shell, a preamplifier shell, a microphone, a mainboard and a transmission cable, the microphone mesh enclosure comprises a pinnacle, a rubber ring, a wind ball, a protective cylinder and a mesh enclosure, the wind ball sleeves the pinnacle and is sealed through the rubber ring, and the pinnacle is provided with a skirt edge abutted against the rubber ring; the protection cylinder is arranged in the wind ball and sleeves the upper end of the microphone, a plurality of sound receiving grooves are uniformly distributed in the protection cylinder, and the grid cover sleeves the protection cylinder; the preamplifier shell is fixed and electrically connected with the microphone, the preamplifier shell is electrically connected with the mainboard, the lamp ring is fixed on the lower shell, the transmission cable is connected with the mainboard, the mainboard is arranged in the upper shell, and the upper shell is connected with the preamplifier shell. According to the utility model, through the multiple waterproof design of the microphone mesh enclosure, the hidden danger that water enters the microphone can be effectively eradicated.

Description

Technical Field

[0001] The utility model relates to the technical field of noise monitoring, in particular to an outdoor noise monitoring device. Background Art

[0002] An outdoor noise monitoring device is a device that is fixed in an outdoor place for a long time to collect and process and upload real-time sound pressure level data. It is used to monitor noise changes and provide data support for noise prevention and control. With the implementation of laws and regulations such as the Environmental Protection Law, the Regulations on the Prevention and Control of Urban Environmental Noise Pollution, and the Urban Area Environmental Noise Standards, the monitoring, evaluation, control and punishment of environmental noise are stipulated, and the demand for outdoor noise monitoring devices is increasing.

[0003] The waterproof design of the mainstream outdoor noise monitoring devices on the market is unreasonable, and there is a risk of water ingress into the microphone. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model

[0005] The utility model aims to solve the technical problems existing in the prior art and provides an outdoor noise monitoring device, which can effectively prevent the hidden danger of water ingress into the microphone through the multiple waterproof designs of the microphone mesh cover.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the technical solution provided by the utility model is:

[0008] An outdoor noise monitoring device comprises a microphone mesh cover, an upper shell, a mounting bracket, a light ring, a lower shell, a preamplifier shell, a microphone, a main board, and a transmission cable; the microphone mesh cover comprises a spire, a rubber ring, a wind ball, a protective tube, and a mesh cover; the wind ball is sleeved on the spire and sealed by the rubber ring; the spire is provided with a skirt abutting against the rubber ring; the protective tube is arranged in the wind ball and sleeved on the upper end of the microphone, a plurality of sound collecting grooves are evenly distributed on the protective tube, and the mesh cover is sleeved outside the protective tube; the preamplifier shell is fixed to the microphone and forms an electrical connection, the light ring is fixed to the lower shell, the transmission cable is connected to the main board, the main board is arranged in the upper shell, and the upper shell is connected to the preamplifier shell.

[0009] Optionally, the protective tube is threadedly connected to the preamplifier housing, and a drainage gap is provided between the protective tube and the preamplifier housing.

[0010] Optionally, the upper shell has a thin neck connected to the preamplifier housing, a groove is provided on the inner side of the thin neck, a first O-ring is provided in the groove, a limiting ring abutting against the end of the thin neck is provided on the preamplifier housing, a chamfer is provided on the inner side of the end of the thin neck, and a second O-ring is provided in the chamfer.

[0011] Optionally, a third O-ring and a fourth O-ring are respectively provided on the upper and lower sides of the light ring.

[0012] Optionally, the light ring is connected to the lower shell via screws, a screw hole matching the screw is provided at the upper end of the light ring, and the upper end of the light ring is threadedly connected to the upper shell.

[0013] Optionally, it also includes a sunscreen cover which is arranged outside the upper shell and is detachably connected to the upper shell.

[0014] Optionally, the mounting bracket is provided with a first connecting surface, a second connecting surface and a third connecting surface, the first connecting surface and the second connecting surface are respectively provided on both sides of the mounting bracket, the second connecting surface and the third connecting surface are provided on the same side of the mounting bracket and are perpendicular to each other, one of the second connecting surface and the third connecting surface is selectively connected to the lower shell, and the first connecting surface is provided with a connecting plane and a connecting groove.

[0015] Optionally, a cable tie fixing groove is provided on the mounting bracket.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0018] The multiple waterproof designs of the microphone grille in this outdoor noise monitoring device can effectively prevent the hidden danger of water entering the microphone. The miniaturized design meets the strict waterproof requirements and can be installed quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of an outdoor noise monitoring device proposed in an embodiment of the utility model;

[0020] Figure 2 A cross-sectional schematic diagram of an outdoor noise monitoring device proposed in an embodiment of the utility model;

[0021] Figure 3 A partial cross-sectional schematic diagram of an outdoor noise monitoring device proposed in an embodiment of the utility model;

[0022] Figure 4 A schematic structural diagram of a preamplifier housing in an outdoor noise monitoring device proposed in an embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the structure of an installation bracket in an outdoor noise monitoring device proposed in an embodiment of the utility model Figure 1 ;

[0024] Figure 6 A schematic diagram of the structure of an installation bracket in an outdoor noise monitoring device proposed in an embodiment of the utility model Figure 2 ;

[0025] 1. Microphone mesh cover; 101. Tip; 102. Rubber ring; 103. Wind ball; 104. Protective tube; 105. Mesh cover; 106. Skirt; 107. Drainage gap; 2. Upper shell; 21. Narrow neck; 3. Sunscreen; 4. Mounting bracket; 41. First connection surface; 42. Second connection surface; 43. Third connection surface; 44. Cable tie fixing groove; 5. Light ring; 6. Lower shell; 7. Preamplifier housing; 7a. Parallel surface; 8. Microphone; 9. Mainboard; 10. Transmission cable; 11. First O-ring; 12. Second O-ring; 13. Third O-ring; 14. Fourth O-ring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and do not limit the protection scope of the utility model.

[0027] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed on" or "installed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. Further, when an element is considered to be "fixedly connected to" another element, the two may be fixed in a detachable connection manner or in a non-detachable connection manner, such as socketing, snap-on, one-piece fixation, welding, etc., which can be achieved in the prior art and will not be repeated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] The “first” and “second” involved in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0030] Combined with Figure 1-6 , an outdoor noise monitoring device of this embodiment includes a microphone mesh cover 1, an upper shell 2, a mounting bracket 4, a light ring 5, a lower shell 6, a preamplifier housing 7, a microphone 8, a main board 9, and a transmission cable 10; the microphone mesh cover 1 includes a spire 101, a rubber ring 102, a wind ball 103, a protective tube 104, and a mesh cover 105. The wind ball 103 is sleeved on the spire 101 and sealed by the rubber ring 102. The wind ball 103 and the inner side of the C-shaped cross section of the rubber ring 102 are fixed by glue to form a sealed connection, which is the first waterproof design. The spire 101 is a conical structure, and the top of the cone is vertically facing the sky ( Figure 2 For the convenience of illustration, it is rotated 90° counterclockwise). The conical bottom has a skirt 106 that is inclined outward and downward. The outer edge of the skirt is generally 1-4 mm larger than the diameter of the protective tube 104, which can prevent rainwater entering through the rubber ring 102 from invading the mesh cover 105. This is the second waterproof design. The protective tube 104 is arranged in the wind ball 103 and is sleeved on the upper end of the microphone 8. The protective tube 104 is evenly provided with a plurality of vertical slots at the position of the microphone 8 as sound receiving slots. The mesh cover 105 is sleeved outside the protective tube 104. The upper end of the mesh cover 105 is flush with the lower end plane of the spire 101. The mesh cover 105 is evenly distributed with fine holes, which ensures that the sound signal is attenuated as little as possible while preventing the water drops rolling on it from entering the interior of the protective tube 104. This is the third waterproof design. The upper part of the preamplifier housing 7 is provided with a thread fixed with the microphone 8 and forms an electrical connection. The preamplifier 7 is electrically connected to the main board 9. The light ring 5 is fixed on the lower housing 6. The transmission cable 10 is connected to the main board 9. The main board 9 is arranged in the upper housing 2, and the upper housing 2 is connected to the preamplifier housing 7.

[0031] The multiple waterproof designs of the microphone grille in this outdoor noise monitoring device can effectively prevent the hidden danger of water entering the microphone. The miniaturized design meets the strict waterproof requirements and can be installed quickly.

[0032] As a preferred embodiment of the present invention, the protective tube 104 is threadedly connected to the preamplifier housing 7, a drainage gap 107 is provided between the protective tube 104 and the preamplifier housing 7, and an external thread connected to the protective tube 104 is provided on the amplifier housing 7. The threaded outer circumference of the external thread is symmetrically cut to form a parallel surface 7a. The gap formed between the parallel surface 7a and the inner side of the protective tube 104 is the drainage gap 107. Even if there is water inside the protective tube 104, it can flow out smoothly without accumulation. This is the fourth waterproof design.

[0033] As a preferred embodiment of the utility model, the upper shell 2 has a thin neck 21 connected to the preamplifier housing 7, a groove is provided on the inner side of the thin neck 21, a first O-ring 11 is provided in the groove, a limiting ring is provided on the preamplifier housing 7 to abut the end of the thin neck 21, a chamfer is provided on the inner side of the end of the thin neck 21, a second O-ring 12 is provided in the chamfer, and the upper shell 2 and the preamplifier housing 7 are fixed by threads, at which time the first O-ring 11 and the second O-ring 12 are both squeezed and compressed.

[0034] As a preferred solution of the utility model, the third O-ring 13 and the fourth O-ring 14 are respectively provided on the upper and lower sides of the light ring 5, the light ring 5 is first fixed to the lower shell 6 by screws, the upper end of the light ring 5 is provided with screw holes matched with the screws, the transmission cable 10 passes through the lower shell 6 and is fixed and sealed with glue, and the transmission cable 10 is electrically connected to the main board 9. After the main board is installed, the upper part of the light ring 5 is fixed to the upper shell 2 with threads, and no exposed screws can be seen in appearance at this time.

[0035] As a preferred solution of the utility model, it also includes a sunscreen 3 disposed outside the upper shell 2 and detachably connected to the upper shell 2. The sunscreen 3 is a conical structure with upper and lower openings, and the thin neck portion matches the thin neck portion of the upper shell 2. There are openings on the conical surface, which can be ventilated and heat dissipated while protecting from the sun. The sunscreen 3 is very convenient to install and can be selected or not according to needs.

[0036] As a preferred embodiment of the utility model, a first connecting surface 41, a second connecting surface 42 and a third connecting surface 43 are provided on the mounting bracket 4. The first connecting surface 41 and the second connecting surface 42 are respectively arranged on both sides of the mounting bracket 4 and are parallel to each other. The second connecting surface 42 and the third connecting surface 43 are arranged on the same side of the mounting bracket 4 and are perpendicular to each other. The second connecting surface 42 and the third connecting surface 43 are selectively connected to the lower shell 6 by screws. The mounting bracket 4 and the lower shell 6 are designed with two installation states of 0° and 90°. A connecting plane and a connecting groove are provided on the first connecting surface 41, so that the first connecting surface 41 has a flat fitting angle for fixing to a flat surface such as a wall. At the same time, a groove is provided to fix it on a cylindrical rod body, and a cable tie fixing groove 44 is provided on the mounting bracket 4. The cable tie fixing groove 44 is arranged to penetrate the mounting bracket 4 so that the cable tie can pass through the regulations, which is flexible and convenient.

[0037] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. An outdoor noise monitoring device, characterized in that: Includes microphone grille, upper shell, mounting bracket, light ring, lower shell, preamplifier shell, microphone, main board, transmission cable; The microphone mesh cover comprises a pointed top, a rubber ring, a wind ball, a protective tube, and a mesh cover. The wind ball is sleeved on the pointed top and sealed by the rubber ring. The pointed top is provided with a skirt that abuts against the rubber ring. The protective tube is arranged in the wind ball and sleeved on the upper end of the microphone, a plurality of sound collecting grooves are evenly distributed on the protective tube, and the grid cover is sleeved outside the protective tube; The preamplifier housing is fixed to the microphone and electrically connected, the light ring is fixed to the lower housing, the transmission cable is connected to the main board, the preamplifier housing is electrically connected to the main board, the main board is arranged in the upper housing, and the upper housing is connected to the preamplifier housing.

2. An outdoor noise monitoring device according to claim 1, characterized in that: The protective tube is threadedly connected to the preamplifier housing, and a drainage gap is provided between the protective tube and the preamplifier housing.

3. An outdoor noise monitoring device according to claim 1, characterized in that: The upper shell has a thin neck connected to the preamplifier housing, a groove is provided on the inner side of the thin neck, a first O-ring is provided in the groove, a limiting ring abutting against the end of the thin neck is provided on the preamplifier housing, a chamfer is provided on the inner side of the end of the thin neck, and a second O-ring is provided in the chamfer.

4. An outdoor noise monitoring device according to claim 1, characterized in that: A third O-ring and a fourth O-ring are respectively arranged on the upper and lower sides of the lamp ring.

5. An outdoor noise monitoring device according to claim 1, characterized in that: The light ring is connected to the lower shell by screws, the upper end of the light ring is provided with screw holes matched with the screws, and the upper end of the light ring is threadedly connected to the upper shell.

6. An outdoor noise monitoring device according to any one of claims 1 to 5, characterized in that: It also includes a sunscreen that is arranged outside the upper shell and is detachably connected to the upper shell.

7. An outdoor noise monitoring device according to any one of claims 1 to 5, characterized in that: The mounting bracket is provided with a first connecting surface, a second connecting surface and a third connecting surface, the first connecting surface and the second connecting surface are respectively provided on both sides of the mounting bracket, the second connecting surface and the third connecting surface are provided on the same side of the mounting bracket and are perpendicular to each other, one of the second connecting surface and the third connecting surface is selectively connected to the lower shell, and the first connecting surface is provided with a connecting plane and a connecting groove.

8. An outdoor noise monitoring device according to claim 7, characterized in that: The mounting bracket is provided with a cable tie fixing groove.

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