Precise noise analyzer

Abstract

The utility model relates to the technical field of noise detection, in particular to a precise noise analyzer. According to the technical scheme, the analyzer comprises an analyzer body, a protective cover, an exhaust pipe and a connecting ring, a microphone is arranged on the outer wall of one end of the analyzer body, a fan cover body sleeves the outer side of the microphone, the protective cover is arranged on the outer wall of one end of the analyzer body, and the exhaust pipe is installed on the outer wall of one side of the protective cover in an inserted mode. By arranging the connecting ring, the exhaust pipe and the protective cover, the effect of cleaning the fan cover body is achieved, secondary pollution of dust to the fan cover body is avoided, the relative cleanliness of the fan cover body is guaranteed, and the detection accuracy of noise values is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of noise detection, in particular to a precision noise analyzer. Background Technique

[0002] A noise analyzer is a device used to measure and analyze noise, which can detect and analyze the noise level in the environment. The noise analyzer converts sound into an electrical signal through a microphone, and then performs impedance transformation through a preamplifier to match the microphone with an attenuator. Then, the signal is sent to an amplifier to be amplified to a certain amplitude, and then processed by an effective value detector and displayed on the instrument.

[0003] In the process of using the existing technology, although there are many benefits, there are still the following problems. It lacks a cleaning structure for the wind cover, resulting in dust in the air adhering to the pores of the wind cover, affecting the accuracy of sound waves passing through the wind cover and being collected by the microphone, and affecting the accuracy of noise value detection. Content of the Utility Model

[0004] The purpose of the utility model is to provide a precision noise analyzer to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A precision noise analyzer, including an analyzer body, a protective cover, an exhaust pipe and a connecting ring. A microphone is arranged on the outer wall of one end of the analyzer body, a wind cover body is sleeved outside the microphone, a protective cover is arranged on the outer wall of one end of the analyzer body, and an exhaust pipe is inserted and installed on the outer wall of one side of the protective cover.

[0006] When using a precision noise analyzer in this technical solution, the staff manually takes the protective cover and places it outside the wind cover body. The protective cover shields and protects the wind cover body, preventing the device from being contaminated by foreign objects when not in use. And when the wind cover body passes through the through hole, the wind cover body is compressed by the connecting ring, driving the doped dust inside the wind cover body to shake out. Moreover, the fan body drives the air flow, so that the gas inside the protective cover is discharged through the exhaust pipe, achieving the purpose of discharging the fallen dust.

[0007] Preferably, buckles are installed on the outer walls of both sides of the protective cover, and the buckles are clamped with the outer wall of the analyzer body. The buckles ensure the connection stability between the protective cover and the analyzer body and the position stability of the protective cover.

[0008] Preferably, a display is embedded and installed on one side of the outer wall of the upper end of the analyzer body, and control buttons are arranged on the outer wall of the upper end of the analyzer body in a rectangular array distribution. The display displays the detection data, and the staff provides a control signal to the analyzer body through the control buttons.

[0009] Preferably, the exhaust duct is connected to the inside of the protective cover. One side of the inner wall of the exhaust duct is provided with a support frame, and a fan body is arranged on the outer wall of one side of the support frame. One side of the inner wall of the exhaust duct is provided with a plug. The fan body drives the air flow inside the protective cover, so that the gas inside the protective cover is discharged through the exhaust duct, and the plug blocks the exhaust duct.

[0010] Preferably, the inner wall of the protective cover is provided with connecting rings distributed equidistantly and in parallel. Through holes are formed inside the connecting rings, and the inner diameter of the through holes is smaller than the outer diameter of the hood body.

[0011] Preferably, a sealing gasket is fixedly attached to the outer wall of one side of the protective cover, and the sealing gasket is in contact with the outer wall of the analyzer body. The sealing gasket ensures the sealing performance between the protective cover and the analyzer body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting the connecting ring, the exhaust duct and the protective cover, the present utility model achieves the effect of cleaning the hood body. The staff manually takes the protective cover and places it outside the hood body. The protective cover shields and protects the hood body to prevent the equipment from being contaminated by foreign objects in the outside world when not in use. When the hood body passes through the through hole, the hood body is compressed by the connecting ring, driving the dust mixed inside the hood body to shake out. Moreover, the fan body drives the air flow, so that the gas inside the protective cover is discharged through the exhaust duct, achieving the purpose of discharging the fallen dust, avoiding secondary pollution of the hood body by the dust, thereby ensuring the relative cleanliness of the hood body and ensuring the detection accuracy of the noise value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural appearance diagram of the analyzer body of the present utility model;

[0014] Figure 2 is a schematic cross-sectional view of the protective cover structure of the present utility model;

[0015] Figure 3 is an enlarged schematic view of the exhaust duct structure of the present utility model.

[0016] In the figure: 1, analyzer body; 11, microphone; 12, hood body; 2, protective cover; 21, exhaust duct; 22, sealing gasket; 23, connecting ring; 24, through hole; 25, support frame; 26, fan body; 27, plug. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1 - 3 , two embodiments provided by the present utility model:

[0019] Embodiment 1: A precision noise analyzer, including an analyzer body 1, a protective cover 2, an exhaust pipe 21 and a connecting ring 23. A microphone 11 is provided on the outer wall of one end of the analyzer body 1. A wind shield body 12 is sleeved outside the microphone 11. A protective cover 2 is provided on the outer wall of one end of the analyzer body 1. The exhaust pipe 21 is inserted and installed on the outer wall of one side of the protective cover 2.

[0020] Clasps are installed on the outer walls of both sides of the protective cover 2, and the clasps are clamped with the outer wall of the analyzer body 1. The clasps ensure the connection stability between the protective cover 2 and the analyzer body 1 and ensure the position stability of the protective cover 2.

[0021] A display is embedded and installed on one side of the outer wall of the upper end of the analyzer body 1. Control buttons are provided on the outer wall of the upper end of the analyzer body 1 and are distributed in a rectangular array. The display displays the detection data, and the staff provides a control signal to the analyzer body 1 through the control buttons. The wind shield body 12 shields and protects the microphone 11, reducing the influence of air flow on the data collected by the microphone 11, and the analyzer body 1 performs noise detection on the data collected by the microphone 11.

[0022] Embodiment 2: A precision noise analyzer, including an analyzer body 1, a protective cover 2, an exhaust pipe 21 and a connecting ring 23. A microphone 11 is provided on the outer wall of one end of the analyzer body 1. A wind shield body 12 is sleeved outside the microphone 11. A protective cover 2 is provided on the outer wall of one end of the analyzer body 1. The exhaust pipe 21 is inserted and installed on the outer wall of one side of the protective cover 2.

[0023] Clasps are installed on the outer walls of both sides of the protective cover 2, and the clasps are clamped with the outer wall of the analyzer body 1. The clasps ensure the connection stability between the protective cover 2 and the analyzer body 1 and ensure the position stability of the protective cover 2.

[0024] A display is embedded and installed on one side of the outer wall of the upper end of the analyzer body 1. Control buttons are provided on the outer wall of the upper end of the analyzer body 1 and are distributed in a rectangular array. The display displays the detection data, and the staff provides a control signal to the analyzer body 1 through the control buttons.

[0025] The exhaust duct 21 is internally connected to the protective cover 2. On one side of the inner wall of the exhaust duct 21, a support frame 25 is installed. On the outer wall of one side of the support frame 25, a fan body 26 is provided. On one side of the inner wall of the exhaust duct 21, a plug 27 is provided. The fan body 26 drives the air flow inside the protective cover 2, so that the gas inside the protective cover 2 is discharged through the exhaust duct 21, and the plug 27 blocks the exhaust duct 21.

[0026] On the inner wall of the protective cover 2, connecting rings 23 are installed in equidistant and parallel distribution. Through holes 24 are formed inside the connecting rings 23, and the inner diameter of the through holes 24 is smaller than the outer diameter of the hood body 12.

[0027] A sealing gasket 22 is fixedly attached to the outer wall of one side of the protective cover 2, and the sealing gasket 22 is in contact with the outer wall of the analyzer body 1. The sealing gasket 22 ensures the sealing performance between the protective cover 2 and the analyzer body 1. The staff manually takes the protective cover 2 and places it outside the hood body 12. The protective cover 2 shields and protects the hood body 12 to prevent the equipment from being contaminated by foreign objects when not in use. When the hood body 12 passes through the through hole 24, the hood body 12 is compressed by the connecting ring 23, driving the doped dust inside the hood body 12 to shake out. Moreover, the fan body 26 drives the air flow, so that the gas inside the protective cover 2 is discharged through the exhaust duct 21, achieving the purpose of discharging the fallen dust, avoiding secondary pollution of the hood body 12 by the dust, thus ensuring the relative cleanliness of the hood body 12 and ensuring the detection accuracy of the noise value.

[0028] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A precision noise analyzer, comprising an analyzer body (1), a protective cover (2), an exhaust pipe (21) and a connecting ring (23), characterized in that: A microphone (11) is provided on the outer wall of one end of the analyzer body (1), a wind shield body (12) is sleeved on the outer side of the microphone (11), a protective shield (2) is provided on the outer wall of one end of the analyzer body (1), and an exhaust pipe (21) is plugged and installed on the outer wall of one side of the protective shield (2).

2. A precision noise analyzer according to claim 1, characterized in that: Buckles are installed on the outer walls of both sides of the protective cover (2), and the buckles are snap-connected to the outer wall of the analyzer body (1).

3. A precision noise analyzer according to claim 1, characterized in that: A display is embedded and mounted on one side of the upper outer wall of the analyzer body (1), and control buttons distributed in a rectangular array are arranged on the upper outer wall of the analyzer body (1).

4. A precision noise analyzer according to claim 1, characterized in that: The exhaust pipe (21) is connected to the interior of the protective cover (2); a support frame (25) is installed on one side of the inner wall of the exhaust pipe (21); a fan body (26) is arranged on the outer wall of one side of the support frame (25); and a plug (27) is arranged on one side of the inner wall of the exhaust pipe (21).

5. A precision noise analyzer according to claim 1, characterized in that: The inner wall of the protective cover (2) is provided with connecting rings (23) which are equidistantly distributed in parallel, and a through hole (24) is provided inside the connecting ring (23), and the inner diameter of the through hole (24) is smaller than the outer diameter of the wind cover body (12).

6. A precision noise analyzer according to claim 1, characterized in that: A sealing gasket (22) is fixedly attached to an outer wall of one side of the protective cover (2), and the sealing gasket (22) is in contact with an outer wall of the analyzer body (1).

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