Sound insulation and ventilation device for noise prevention and control

Abstract

The utility model discloses a sound insulation and ventilation device for noise prevention and control, and belongs to the technical field of ventilation equipment. The sound insulation ventilation device for noise prevention and control comprises a ventilation pipe body, two sound insulation plates are rotationally connected between the inner walls of the two sides of the ventilation pipe body, and a fan is fixedly installed between the inner walls of the ventilation pipe body; each control mechanism comprises a mounting box, a transmission threaded rod, a transmission toothed plate and a transmission gear, the mounting box is fixedly connected to the outer surface of one side of the ventilation pipe body, the sound insulation ventilation device for noise prevention and control, the ventilation pipe body and the two sound insulation plates form an S-shaped air duct, and the surfaces of the sound insulation plates are covered with efficient sound absorption materials. These materials can rapidly capture and absorb sound waves, preventing further propagation of noise to other areas through the ventilation system. Meanwhile, due to the vertical arrangement mode of the sound insulation plates, the path length of sound transmission is increased, and the intensity of noise is further weakened through multiple times of reflection and interference.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, and more specifically to a noise-proofing and noise-preventing sound-insulating ventilation device. Background Art

[0002] In industrial production, the ventilation system of the factory is crucial to ensure the comfort of employees' working environment, improve work efficiency and maintain the normal operation of equipment. However, traditional ventilation systems often face the problem of noise pollution. When the machinery and equipment in the factory are running, a lot of noise will be generated. This noise not only affects the physical and mental health of employees, but may also interfere with the operation of equipment.

[0003] Traditional ventilation systems usually adopt a straight air duct design. Although it ensures good ventilation, it is incapable of controlling noise. In a noisy environment, the noise will spread to the entire factory through the ventilation system, causing noise pollution. In addition, in order to reduce noise, some factories will use methods such as adding sound insulation materials or installing soundproof doors and windows, but these measures often cause certain obstacles to the ventilation system and affect the ventilation effect. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a noise-prevention soundproof ventilation device, which can automatically adjust the state of the soundproof board according to the noise level in the factory through the precise operation of the control mechanism. When the noise is not loud, the soundproof board remains in a horizontal state and will not block the air flow, thus ensuring good ventilation of the ventilation pipe body. When the noise is too loud, the soundproof board can be quickly transformed into a vertical state, forming an S-shaped air duct with the ventilation pipe body, which greatly absorbs and reduces noise by increasing the path length of sound propagation and multiple reflection interference.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the utility model adopts the following technical solutions:

[0008] A noise-proofing and ventilation device, comprising:

[0009] A ventilation pipe body, wherein two sound insulation plates are rotatably connected between the inner walls on both sides of the ventilation pipe body, and a fan is fixedly installed between the inner walls of the ventilation pipe body; and

[0010] Two sets of control mechanisms, the control mechanisms include an installation box, a transmission threaded rod, a transmission tooth plate and a transmission gear, the installation box is fixedly connected to the outer surface of one side of the ventilation pipe body, the transmission threaded rod is rotatably connected between the inner walls on both sides of the installation box, the transmission tooth plate is threadedly connected to the transmission threaded rod, the transmission gear is rotatably connected to the inner wall on one side of the installation box, and the transmission gear is fixedly connected to the corresponding sound insulation board through a rotating shaft rod.

[0011] As a preferred solution of the utility model, the control mechanism further comprises a servo motor, the servo motor is fixedly mounted on an outer surface of one side of the mounting box, and the output end of the servo motor is fixedly connected to the transmission threaded rod.

[0012] As a preferred solution of the utility model, the control mechanism further includes two limit rods, the two limit rods are fixedly connected between the inner walls on both sides of the installation box, and the transmission toothed plate is slidably sleeved on the two limit rods.

[0013] As a preferred solution of the present utility model, each of the limit rods is made of stainless steel.

[0014] As a preferred solution of the utility model, rectifying grid plates are fixedly connected between the inner walls of the four sides of the ventilation pipe body.

[0015] As a preferred solution of the utility model, the rectifying grid plate is located between the fan and the corresponding sound insulation plate.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the utility model provides a noise-proofing and sound-insulating ventilation device, which has the following beneficial effects:

[0018] The noise prevention and control sound insulation ventilation device, when the noise in the factory is not loud, the two sound insulation boards are kept in a horizontal state in contact with the inner wall of the ventilation pipe body, and will not block the air flow. Under the operation of the fan, the ventilation pipe body maintains good ventilation. When the noise in the factory is too loud, the two control mechanisms start to work, and the transmission tooth plate is driven to move a certain distance by controlling the transmission threaded rod to rotate a certain amplitude. The transmission tooth plate will drive the transmission gear to rotate ninety degrees, and finally the two sound insulation boards are kept in a vertical state inside the ventilation pipe body. The ventilation pipe body and the two sound insulation boards form an S-shaped air duct. Although the air flow in the factory is slightly slowed down, it does not significantly affect the ventilation function of the ventilation pipe body. The ventilation function of the ventilation pipe body can still be stably and normally realized. The surface of the sound insulation board is covered with high-efficiency sound-absorbing materials, which can quickly capture and absorb sound waves to prevent noise from further propagating to other areas through the ventilation system. At the same time, the vertical arrangement of the sound insulation board not only increases the path length of sound propagation, but also further weakens the intensity of the noise through multiple reflections and interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is a three-dimensional diagram of the interior of the ventilation pipe body of the utility model;

[0021] Figure 3 It is a cross-sectional view of the control mechanism of the utility model;

[0022] Figure 4 For the utility model Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 It is a partial structural stereogram of the utility model.

[0024] Description of the numbers in the figure:

[0025] 1. Ventilation pipe body; 2. Control mechanism; 201. Installation box; 202. Transmission threaded rod; 203. Transmission tooth plate; 204. Transmission gear; 205. Servo motor; 206. Limit rod; 3. Fan; 4. Sound insulation board; 5. Rectifier grid plate. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example:

[0028] See also Figure 1-Figure 5 , a noise-proof ventilation device for noise prevention, comprising:

[0029] A ventilation pipe body 1, two sound insulation plates 4 are rotatably connected between the inner walls of both sides of the ventilation pipe body 1, and a fan 3 is fixedly installed between the inner walls of the ventilation pipe body 1; and

[0030] Two sets of control mechanisms 2, the control mechanism 2 includes an installation box 201, a transmission threaded rod 202, a transmission tooth plate 203 and a transmission gear 204, the installation box 201 is fixedly connected to the outer surface of one side of the ventilation pipe body 1, the transmission threaded rod 202 is rotatably connected between the inner walls on both sides of the installation box 201, the transmission tooth plate 203 is threadedly connected to the transmission threaded rod 202, the transmission gear 204 is rotatably connected to the inner wall on one side of the installation box 201, and the transmission gear 204 is fixedly connected to the corresponding sound insulation board 4 through a rotating shaft rod.

[0031] In a specific embodiment of the present utility model, two groups of control mechanisms 2 are respectively used to control the rotation of two sound insulation boards 4. The installation positions of the two groups of control mechanisms 2 on the ventilation pipe body 1 are different, corresponding to the installation positions of the two sound insulation boards 4 one above and one below. When the noise in the factory is not loud, the two sound insulation boards 4 are kept in a horizontal state in contact with the inner wall of the ventilation pipe body 1, and will not block the air flow. Under the operation of the fan 3, the ventilation pipe body 1 maintains good ventilation. When the noise in the factory is too loud, the two groups of control mechanisms 2 start to work. Only one group of control mechanisms 2 is described here. The working principle of the other group of control mechanisms 2 is exactly the same. By controlling the transmission screw The rod 202 rotates a certain amplitude, driving the transmission tooth plate 203 to move a certain distance, and the transmission tooth plate 203 drives the transmission gear 204 to rotate ninety degrees, and finally the two sound insulation boards 4 are kept in a vertical state inside the ventilation pipe body 1. The ventilation pipe body 1 and the two sound insulation boards 4 form an S-shaped air duct. Although the air flow in the factory is slightly slowed down, it does not have a significant impact on the ventilation function of the ventilation pipe body 1. The ventilation function of the ventilation pipe body 1 can still be stably and normally realized. The surface of the sound insulation board 4 is covered with high-efficiency sound-absorbing materials. These materials can quickly capture and absorb sound waves to prevent noise from further spreading to other areas through the ventilation system. At the same time, the vertical arrangement of the sound insulation board 4 not only increases the path length of sound propagation, but also further weakens the intensity of the noise through multiple reflections and interference.

[0032] Specifically, the control mechanism 2 further includes a servo motor 205 . The servo motor 205 is fixedly mounted on an outer surface of one side of the mounting box 201 . The output end of the servo motor 205 is fixedly connected to the transmission threaded rod 202 .

[0033] In this embodiment, the servo motor 205 is controlled to start, so as to drive the transmission threaded rod 202 to rotate by a fixed amplitude.

[0034] Specifically, the control mechanism 2 further includes two limit rods 206 . The two limit rods 206 are fixedly connected between the inner walls on both sides of the installation box 201 . The transmission gear plate 203 is slidably sleeved on the two limit rods 206 .

[0035] In this embodiment, the two limiting rods 206 enable the transmission gear plate 203 to maintain stable movement.

[0036] Specifically, each limiting rod 206 is made of stainless steel.

[0037] In this embodiment, the limiting rod 206 is made of stainless steel, which is more durable.

[0038] Specifically, the rectifying grid plates 5 are fixedly connected between the inner walls of the four sides of the ventilation pipe body 1 .

[0039] In this embodiment, the rectifying grid plate 5 plays a role in smooth ventilation.

[0040] Specifically, the rectifying grid plate 5 is located between the fan 3 and the corresponding sound insulation plate 4 .

[0041] In this embodiment, the rectifying grid plate 5 is located near the fan 3, so as to reasonably utilize the installation space.

[0042] Working principle: when the noise in the factory is not loud, the two sound insulation boards 4 both maintain a horizontal state in contact with the inner wall of the ventilation pipe body 1, and will not block the air flow. Under the operation of the fan 3, the ventilation pipe body 1 maintains good ventilation. When the noise in the factory is too loud, the two groups of control mechanisms 2 start to work, and the servo motor 205 is controlled to start, driving the transmission threaded rod 202 to rotate a certain amplitude, driving the transmission gear plate 203 to move a certain distance, and the transmission gear plate 203 will drive the transmission gear 204 to rotate ninety degrees, and finally the two sound insulation boards 4 are kept in a vertical state inside the ventilation pipe body 1. The ventilation pipe body 1 and the two sound insulation boards 4 form an S-shaped air duct. Although the air flow in the factory is slightly slowed down, it does not cause a significant impact on the ventilation function of the ventilation pipe body 1. The ventilation function of the ventilation pipe body 1 can still be stably and normally realized. The surface of the sound insulation board 4 is covered with high-efficiency sound-absorbing materials. These materials can quickly capture and absorb sound waves to prevent noise from further spreading to other areas through the ventilation system. At the same time, the vertical arrangement of the sound insulation board 4 not only increases the path length of sound propagation, but also further weakens the intensity of noise through multiple reflections and interferences, thereby achieving effective noise prevention and control. The control method of the utility model is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and wiring layout in detail.

[0043] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A noise-proof ventilation device for noise prevention, characterized in that: include: A ventilation pipe body (1), wherein two sound insulation plates (4) are rotatably connected between the inner walls on both sides of the ventilation pipe body (1), and a fan (3) is fixedly installed between the inner walls of the ventilation pipe body (1); and Two sets of control mechanisms (2), the control mechanisms (2) comprising a mounting box (201), a transmission threaded rod (202), a transmission tooth plate (203) and a transmission gear (204), the mounting box (201) being fixedly connected to an outer surface of one side of the ventilation pipe body (1), the transmission threaded rod (202) being rotatably connected between two inner walls of the mounting box (201), the transmission tooth plate (203) being threadedly connected to the transmission threaded rod (202), the transmission gear (204) being rotatably connected to an inner wall of one side of the mounting box (201), and the transmission gear (204) being fixedly connected to a corresponding sound insulation board (4) via a rotating shaft rod.

2. A noise-proofing and sound-insulating ventilation device according to claim 1, characterized in that: The control mechanism (2) further comprises a servo motor (205), wherein the servo motor (205) is fixedly mounted on an outer surface of one side of the mounting box (201), and an output end of the servo motor (205) is fixedly connected to the transmission threaded rod (202).

3. A noise-proofing and sound-insulating ventilation device according to claim 1, characterized in that: The control mechanism (2) further comprises two limit rods (206), the two limit rods (206) are fixedly connected between the inner walls on both sides of the installation box (201), and the transmission toothed plate (203) is slidably sleeved on the two limit rods (206).

4. A noise-proofing and sound-insulating ventilation device according to claim 3, characterized in that: Each of the limiting rods (206) is made of stainless steel.

5. A noise-proofing and sound-insulating ventilation device according to claim 1, characterized in that: Rectifying grid plates (5) are fixedly connected between the inner walls of the four sides of the ventilation pipe body (1).

6. A noise-proofing and sound-insulating ventilation device according to claim 5, characterized in that: The rectifying grid plate (5) is located between the fan (3) and the corresponding sound insulation plate (4).

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