Noise reduction and ventilation structure of soundproof room

Abstract

The utility model discloses a noise reduction ventilation structure of a soundproof room, which relates to the technical field of soundproof rooms and comprises a soundproof room, the soundproof room comprises an external wall panel, an air inlet is arranged at the top end of the right side of the external wall panel, an air outlet is arranged at the bottom end of the left side of the external wall panel, and a ventilation pipeline is fixedly mounted at the input end of the air inlet. And a mute air bellow is fixedly mounted at the other end of the ventilation pipeline. According to the utility model, the sound-absorbing cotton is arranged to absorb noise when airflow enters the ventilating duct, and airflow surging is reflected and interfered under the action of the plurality of baffles and the rubber pads, so that sound energy is reduced, and noise reduction is achieved; the conical noise reduction plate is matched to change the sound transmission direction, disperse sound energy and reduce the noise intensity in a special shape, the sound absorption holes enable sound waves to rub in the holes and convert and absorb the sound energy through a porous structure, and various kinds of noise are further effectively weakened through cooperation of the two.

Description

TECHNICAL FIELD

[0001] The utility model relates to soundproof room technical field, concretely relates to a soundproof room's noise reduction ventilation structure. BACKGROUND

[0002] Soundproof room is a kind of environmental protection equipment for seeking to improve and control noise pollution increasingly serious, commonly used in the occasion with quiet level demand.

[0003] Because the space of soundproof room is relatively closed, so the air permeability of integral wall surface is relatively poor, if soundproof room has no air permeability structure, indoor very easy to appear the situation of oxygen deficiency, lead to people unable to stay in soundproof room for a long time, therefore need to carry out ventilation treatment.

[0004] Because soundproof room increases ventilation structure, and these ventilation structures are usually composed of passage structure such as exhaust fan, lead to the sound insulation effect of original soundproof room greatly reduces, and ventilation and sound insulation appear the problem of contradiction, therefore, we provide a soundproof room's noise reduction ventilation structure. UTILITY MODEL CONTENTS

[0005] The utility model is to provide a soundproof room's noise reduction ventilation structure to solve the problems in the background art.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0007] A soundproof room's noise reduction ventilation structure, including soundproof room, the soundproof room includes outer wallboard, the right side top of outer wallboard is equipped with air inlet, the left side bottom of outer wallboard is equipped with air outlet, the input end of air inlet is fixedly installed with ventilation duct, the other end of ventilation duct is fixedly installed with mute bellows.

[0008] The inside of air inlet, air outlet and ventilation duct is provided with noise reduction unit.

[0009] The noise reduction unit includes sound-absorbing cotton fixedly installed on the inner wall of ventilation duct, the inner wall of air inlet and air outlet is fixedly installed with conical noise reduction board, and the conical noise reduction board changes the sound propagation direction with special shape, disperses sound energy and reduces noise intensity.

[0010] The further improvement of the utility model technical scheme is that: the inside of conical noise reduction board is equipped with sound absorption hole, the sound absorption hole is equipped with multiple groups, the conical noise reduction board is provided with multiple groups, and the sound absorption hole is made of porous structure, so that sound waves are rubbed in the pore, sound energy is converted and absorbed, and the two are matched, to further effectively weaken various noises.

[0011] The further improvement of the utility model technical scheme lies in that: the baffle is fixedly installed on the outer surface of the sound-absorbing cotton in the inside of the ventilation duct, rubber pads are fixedly installed around the baffle, the airflow surges reflect and interfere under the action of the multiple baffles and rubber pads, and then the sound energy is reduced to achieve the purpose of noise reduction.

[0012] The further improvement of the utility model technical scheme lies in that: the support support is fixedly installed on the outer surface of the outer wall plate.

[0013] The further improvement of the utility model technical scheme lies in that: the cross support is fixedly installed on the inner wall of the mute bellows, the bearing frame is fixedly installed at the rear end of the cross support, and the servo motor is fixedly installed in the inside of the bearing frame.

[0014] The further improvement of the utility model technical scheme lies in that: the driving rod is fixedly installed on the output end of the servo motor, the other end of the driving rod penetrates through the cross support and is fixedly sleeved with the rotating shaft, and the mute fan blades are fixedly installed around the outer surface of the rotating shaft.

[0015] The further improvement of the utility model technical scheme lies in that: the external thread is formed on the outer surface of the input end of the mute bellows, the dust cover is arranged on the input end of the mute bellows, the internal thread is formed on the inner wall of the dust cover, the internal thread is threadedly sleeved on the outer surface of the external thread, and the dust cover can prevent impurities in the airflow from entering the soundproof room.

[0016] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0017] The utility model provides a kind of noise reduction ventilation structure of soundproof room, by setting sound-absorbing cotton when airflow enters ventilation duct, noise absorption, airflow surges reflect and interfere under the action of the multiple baffles and rubber pads, and then the sound energy is reduced to achieve the effect of noise reduction.

[0018] The utility model provides a kind of noise reduction ventilation structure of soundproof room, by setting taper noise reduction board, when airflow is discharged to soundproof room interior, cooperate taper noise reduction board to change sound propagation direction with special shape, disperse sound energy to reduce noise intensity, sound-absorbing hole is converted and absorbed by friction of sound wave in aperture by virtue of porous structure, both cooperate, further effectively weaken all kinds of noise. DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the mute bellows structure schematic diagram of the utility model;

[0021] Figure 3 It is the cross section schematic view of the mute bellows structure of the utility model;

[0022] Figure 4 It is the cross section schematic view of the ventilation duct structure of the utility model;

[0023] Figure 5 It is the air inlet structure schematic view of the utility model.

[0024] In the drawing: 1, soundproof room;2, outer wallboard;21, mute bellows;22, ventilation duct;221, sound absorbing cotton;222, baffle;223, rubber pad;23, support support;24, cross support;25, bearing frame;26, servo motor;27, drive rod;28, rotating shaft;29, mute fan blade;210, external thread;211, dust cover;212, internal thread;3, air inlet;31, conical noise reduction plate;32, sound absorbing hole;4, air outlet. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. EMBODIMENT

[0026] As Figures 1-5 shown, the utility model provides a kind of noise reduction ventilation structure of soundproof room, including soundproof room 1, soundproof room 1 includes outer wallboard 2, the right side top of outer wallboard 2 is equipped with air inlet 3, the left side bottom of outer wallboard 2 is equipped with air outlet 4, the input end of air inlet 3 is fixedly installed with ventilation duct 22, the other end of ventilation duct 22 is fixedly installed with mute bellows 21, the inside of air inlet 3 and air outlet 4 and ventilation duct 22 is all provided with noise reduction unit, and noise reduction unit includes sound absorbing cotton 221 fixedly installed on the inner wall of ventilation duct 22, the inner wall of air inlet 3 and air outlet 4 is all fixedly installed with conical noise reduction plate 31, conical noise reduction plate 31 is equipped with sound absorbing hole 32, sound absorbing hole 32 is equipped with multiple groups, conical noise reduction plate 31 is equipped with multiple groups, the outer surface of sound absorbing cotton 221 in the inside of ventilation duct 22 is fixedly installed with baffle 222, and the periphery of baffle 222 is all fixedly installed with rubber pad 223.

[0027] Further, when the gas enters the ventilation duct 22, the noise is absorbed by the sound-absorbing cotton 221, and the sound energy is further reduced by reflection and interference under the action of the plurality of baffles 222 and the rubber pads 223, so that the purpose of noise reduction is achieved. When the airflow enters the air inlet 3 and is discharged to the soundproof room 1, the conical noise reduction plate 31 is matched with the special shape to change the sound propagation direction, disperse the sound energy and reduce the noise intensity. The sound-absorbing hole 32 is provided with a porous structure, so that the sound wave is rubbed in the pore, and the sound energy is converted and absorbed. The two are matched to effectively weaken various noises. Embodiment

[0028] As shown in Figures 1-5 the utility model provides a technical scheme based on embodiment 1: preferably, the outer surface of the mute bellows 21 is fixedly installed with a support support 23, the support support 23 is fixedly installed on the outer surface of the outer wall plate 2, the inner wall of the mute bellows 21 is fixedly installed with a cross support 24, the rear end of the cross support 24 is fixedly installed with a bearing frame 25, the inside of the bearing frame 25 is fixedly installed with a servo motor 26, the output end of the servo motor 26 is fixedly installed with a drive rod 27, the other end of the drive rod 27 penetrates the cross support 24 and is fixedly sleeved with a rotating shaft 28, the outer surface of the rotating shaft 28 is fixedly installed with a mute fan blade 29.

[0029] Further, the output end of the servo motor 26 drives the drive rod 27 to drive the rotating shaft 28 to drive the mute fan blade 29 to rotate at a uniform speed. The two groups of mute fan blades 29 operate simultaneously. One group cooperates with the air inlet 3 to transport external air to the soundproof room 1, and the other group cooperates with the air outlet 4 to transport air in the soundproof room 1 to the outside, thereby realizing the effect of circulating ventilation. Embodiment

[0030] As shown in Figures 1-5 the utility model provides a technical scheme based on embodiment 1-2: preferably, the outer surface of the input end of the mute bellows 21 is provided with an external thread 210, the input end of the mute bellows 21 is provided with a dust cover 211, the inner wall of the dust cover 211 is provided with an internal thread 212, and the internal thread 212 is threadedly sleeved on the outer surface of the external thread 210.

[0031] Further, the dust cover 211 is threadedly sleeved on the input port of the mute bellows 21 to block the impurities in the airflow.

[0032] The working principle of the noise reduction ventilation structure of the soundproof room will be described below.

[0033] As shown in Figures 1-5As shown, during use, the output end of the servo motor 26 drives the driving rod 27 to promote the rotation shaft 28 to rotate at a constant speed to drive the mute fan blade 29 to rotate at a constant speed, the mute fan blade 29 rotates to generate suction, two groups of mute fan blades 29 operate simultaneously, one group cooperates with the air inlet 3 to transport external air to the soundproof room 1, and the other group cooperates with the air outlet 4 to transport the air in the soundproof room 1 to the outside, thereby realizing the function of circulating ventilation, when the gas enters the ventilation pipeline 22, the sound absorbing cotton 221 cooperates to absorb noise, under the action of the plurality of baffles 222 and the rubber pad 223, the sound is reflected and interfered, further reducing the sound energy to achieve the purpose of noise reduction, when the airflow enters the air inlet 3 to discharge to the soundproof room 1, the conical noise reduction plate 31 cooperates to change the sound propagation direction with a special shape, disperses the sound energy to reduce the noise intensity, the sound absorbing hole 32 is provided with a porous structure, the sound wave is rubbed in the pore, the sound energy is converted and absorbed, and the two cooperate to effectively weaken various noises.

[0034] The above has made a detailed description of the utility model in general, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A noise reduction and ventilation structure for a soundproof room, comprising a soundproof room (1), characterized in that: The soundproof room (1) includes an outer wall panel (2), an air inlet (3) is provided at the top right side of the outer wall panel (2), an air outlet (4) is provided at the bottom left side of the outer wall panel (2), a ventilation duct (22) is fixedly installed at the input end of the air inlet (3), and a silent bellows (21) is fixedly installed at the other end of the ventilation duct (22). Noise reduction units are provided inside the air inlet (3), air outlet (4), and ventilation duct (22); The noise reduction unit includes sound-absorbing cotton (221) fixedly installed on the inner wall of the ventilation duct (22), and conical noise reduction plates (31) are fixedly installed on the inner walls of the air inlet (3) and the air outlet (4).

2. The noise reduction and ventilation structure of a soundproof room according to claim 1, characterized in that: The conical noise reduction plate (31) has sound-absorbing holes (32) inside, and there are multiple sets of sound-absorbing holes (32). The conical noise reduction plate (31) is provided with multiple sets of these holes.

3. The noise reduction and ventilation structure of a soundproof room according to claim 1, characterized in that: Inside the ventilation duct (22), a baffle (222) is fixedly installed on the outer surface of the sound-absorbing cotton (221), and rubber pads (223) are fixedly installed around the baffle (222).

4. The noise reduction and ventilation structure of a soundproof room according to claim 1, characterized in that: A support bracket (23) is fixedly installed on the outer surface of the silent air box (21), and the support bracket (23) is fixedly installed on the outer surface of the outer wall panel (2).

5. The noise reduction and ventilation structure of a soundproof room according to claim 1, characterized in that: A cross bracket (24) is fixedly installed on the inner wall of the silent air box (21), and a support frame (25) is fixedly installed at the rear end of the cross bracket (24). A servo motor (26) is fixedly installed inside the support frame (25).

6. The noise reduction and ventilation structure of a soundproof room according to claim 5, characterized in that: A drive rod (27) is fixedly installed on the output end of the servo motor (26). The other end of the drive rod (27) passes through the cross bracket (24) and is fixedly sleeved with a rotating shaft (28). Silent fan blades (29) are fixedly installed on the outer surfaces of the rotating shaft (28).

7. The noise reduction and ventilation structure of a soundproof room according to claim 1, characterized in that: The silent air box (21) has an external thread (210) on the outer surface of its input end. The silent air box (21) has a dust cover (211) on its input end. The dust cover (211) has an internal thread (212) on its inner wall. The internal thread (212) is threaded onto the outer surface of the external thread (210).

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