Air conditioner air duct noise reduction structure

Abstract

The utility model provides a kind of air conditioner air pipe noise reduction structure, it is related to air pipe noise reduction technical field, including air pipe, buffer mechanism, first dismounting mechanism and second dismounting mechanism, the buffer mechanism includes rubber strip, limit ring and joint spare, the side surface of rubber strip and limit ring is fixedly connected, the side surface of limit ring is attached with the outer wall of air pipe, rubber strip, limit ring and joint spare are used to shock absorption and buffering to air pipe, prevent air pipe from appearing low-frequency noise by vibration influence;The first dismounting mechanism includes installation frame and spike block, in the utility model, limit ring can be positioned to air pipe, joint spare can prevent air pipe from occurring lateral displacement in vibration, cooperate the elastic deformation of rubber strip and can be changed into the vibration of air pipe, so as to the low frequency of air pipe can be reduced noise, simultaneously, extrusion frame is embedded into the inside of installation frame, so that it can replace sound-absorbing cotton, thereby reduce the noise reduction cost of the device.

Description

Technical Field

[0001] This utility model relates to the field of duct noise reduction technology, and in particular to a noise reduction structure for air conditioning ducts. Background Technology

[0002] Noise reduction in air conditioning ducts is mainly achieved through silencers. The core principle is to use acoustic design to absorb, reflect, or interfere with sound waves, thereby reducing airflow noise.

[0003] Currently, noise reduction structures can only reduce high noise levels in ducts. However, ducts are prone to vibration due to wind, and long-term vibration can lead to low-frequency noise, making it impossible for noise reduction structures to completely reduce noise within the ducts. In addition, when the sound-absorbing cotton is damaged, the entire noise reduction structure usually needs to be replaced, which increases the cost of noise reduction.

[0004] Therefore, we propose a noise reduction structure for air conditioning ducts to address the problems mentioned above. Utility Model Content

[0005] This invention proposes a noise reduction structure for air conditioning ducts to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: including a duct, a buffer mechanism, a first disassembly and assembly mechanism, and a second disassembly and assembly mechanism. The buffer mechanism includes a rubber strip, a limiting ring, and a joint. The rubber strip is fixedly connected to the side surface of the limiting ring, and the side surface of the limiting ring is in contact with the outer wall of the duct. The rubber strip, the limiting ring, and the joint are used to dampen and buffer the duct to prevent the duct from generating low-frequency noise due to vibration.

[0007] The first disassembly and assembly mechanism includes an installation frame and a spike block, the spike block being fixedly connected to the inner wall of the installation frame. The second disassembly and assembly mechanism includes a compression frame, the compression frame being internally fitted to the installation frame. The installation frame, spike block, and compression frame are used to disassemble and replace the filler used for noise reduction.

[0008] Preferably, the buffer mechanism further includes a rubber block, the side surface of which is fixedly connected to the side surface of the limiting ring, a spring fixedly connected to the side surface of the rubber block, and the left end of the spring fixedly connected to the inner wall of the compression frame. Friction seats are fixedly connected to both the upper and lower surfaces of the limiting ring, and the upper surface of the friction seat is movably connected to the lower surface of the joint, and the upper surface of the joint is movably connected to the inner wall of the compression frame.

[0009] Preferably, the first disassembly and assembly mechanism further includes a mounting plate, the side surface of which is movably connected to both sides of the mounting frame via bearings, and a fixing rod is fitted inside the mounting plate, with a stop block fixedly connected to both sides of the fixing rod.

[0010] Preferably, the second disassembly and assembly mechanism further includes an insert plate, which is fixedly connected to the upper and lower surfaces of the extrusion frame, and the rear surface of the insert plate is fitted and connected to the front surface of the mounting frame.

[0011] Preferably, the interior of the mounting frame is provided with sound-absorbing cotton, and the sound-absorbing cotton is in contact with the outer surface of the extrusion frame.

[0012] Preferably, the outer surface of the mounting frame is fitted with a duct, and the front and rear surfaces of the duct are fixedly connected with connecting plates, and the interior of the connecting plates is fitted with a fixing rod.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, when the duct is affected by the vibration caused by the wind, the joint moves within the extrusion frame, and the contact surface between the friction seat and the joint generates sliding friction, which effectively suppresses low-frequency vibration. The limiting effect of the joint can prevent the duct from lateral displacement during vibration. Together with the elastic deformation of the rubber block and rubber strip, the elastic reset of the spring, and the friction damping of the friction seat and the joint, a multi-level buffer mechanism is formed, which reduces the vibration amplitude of the duct and thus avoids the problem of low-frequency noise caused by vibration.

[0015] 2. In this utility model, when the sound-absorbing cotton needs to be replaced, the worker rotates and pulls the fixing rod to separate it from the hole in the connecting plate, pulls the insert plate backward from the mounting frame, and separates the squeezing frame from the mounting frame. By separating the squeezing frame from the mounting frame, the old sound-absorbing cotton that has aged and been hooked by the barbs can be taken out. After the old sound-absorbing cotton is taken out, new sound-absorbing cotton is filled into the mounting frame, and the squeezing frame is embedded into the mounting frame to compact the sound-absorbing cotton, thus completing the installation of the sound-absorbing cotton, thereby reducing the noise reduction cost of the device. Attached Figure Description

[0016] Figure 1 This utility model provides a front view perspective view of an air conditioning duct noise reduction structure.

[0017] Figure 2 This utility model provides a three-dimensional view of the duct structure in an air conditioning duct noise reduction structure;

[0018] Figure 3 This utility model provides a three-dimensional structural view of the first disassembly and assembly mechanism in an air conditioning duct noise reduction structure;

[0019] Figure 4 This utility model presents a three-dimensional view of the second disassembly mechanism in an air conditioning duct noise reduction structure.

[0020] Legend: 1. Air duct; 2. First disassembly and assembly mechanism; 201. Mounting frame; 202. Mounting plate; 203. Fixing rod; 204. Stop block; 205. Spike block; 3. Connecting plate; 4. Air duct; 5. Second disassembly and assembly mechanism; 501. Extrusion frame; 502. Insert plate; 6. Buffer mechanism; 601. Limiting ring; 602. Joint component; 603. Friction seat; 604. Rubber strip; 605. Spring; 606. Rubber block; 7. Sound-absorbing cotton. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can also be implemented in other ways than those described herein, and therefore the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1, as shown in the attached document Figures 1-4 As shown, it includes a duct 4, a buffer mechanism 6, a first disassembly and assembly mechanism 2 and a second disassembly and assembly mechanism 5. The buffer mechanism 6 includes a rubber strip 604, a limiting ring 601 and a joint 602. The rubber strip 604 is fixedly connected to the side surface of the limiting ring 601. The side surface of the limiting ring 601 is in contact with the outer wall of the duct 4. The rubber strip 604, the limiting ring 601 and the joint 602 are used to dampen and buffer the duct 4 to prevent the duct 4 from generating low-frequency noise due to vibration.

[0024] The first disassembly and assembly mechanism 2 includes an installation frame 201 and a spike block 205. The spike block 205 is fixedly connected to the inner wall of the installation frame 201. The second disassembly and assembly mechanism 5 includes a compression frame 501. The compression frame 501 is internally fitted to the installation frame 201. The installation frame 201, the spike block 205, and the compression frame 501 are used to disassemble and replace the filler used for noise reduction.

[0025] The overall effect of embodiment 1 is as follows: the limiting ring 601 can limit the air duct 4, the joint 602 can prevent the air duct 4 from lateral displacement during vibration, and the elastic deformation of the rubber strip 604 can replace the vibration of the air duct 4, thereby reducing the low frequency noise of the air duct 4. At the same time, the extrusion frame 501 is fitted into the interior of the mounting frame 201, so that the sound-absorbing cotton 7 can be replaced, thereby reducing the noise reduction cost of the device.

[0026] Example 2, as Figures 1-2As shown, the buffer mechanism 6 also includes a rubber block 606. The side surface of the rubber block 606 is fixedly connected to the side surface of the limiting ring 601. A spring 605 is fixedly connected to the side surface of the rubber block 606, and the left end of the spring 605 is fixedly connected to the inner wall of the compression frame 501. Friction seats 603 are fixedly connected to both the upper and lower surfaces of the limiting ring 601. The upper surface of the friction seat 603 is movably connected to the lower surface of the joint member 602, and the upper surface of the joint member 602 is movably connected to the inner wall of the compression frame 501.

[0027] The overall effect of Embodiment 2 is as follows: When the duct 4 is affected by vibration caused by wind, the vibration of the duct 4 can be initially absorbed by the elastic deformation of the rubber block 606 and the rubber strip 604. The limiting ring 601 fits against the outer wall of the duct 4, and the vibration force is dispersed to multiple directions through the flexible connection of the rubber strip 604, avoiding local stress concentration. When the rubber block 606 is compressed, the spring 605 can be compressed or stretched during vibration to help the duct 4 restore balance. The cooperation between the spring 605 and the rubber block 606 further consumes vibration energy. To reduce residual vibration amplitude, when the duct 4 vibrates, the joint 602 moves within the compression frame 501, and the contact surface between the friction seat 603 and the joint 602 generates sliding friction, effectively suppressing low-frequency vibration. The limiting effect of the joint 602 can prevent the duct 4 from undergoing lateral displacement during vibration. Together with the elastic deformation of the rubber block 606 and the rubber strip 604, the elastic reset of the spring 605, and the friction damping of the friction seat 603 and the joint 602, a multi-level buffer mechanism is formed, which reduces the vibration amplitude of the duct 4, thereby avoiding low-frequency noise problems caused by vibration.

[0028] Example 3, as Figure 1 , Figure 3 and Figure 4 As shown, the first disassembly and assembly mechanism 2 also includes a mounting plate 202. The side surface of the mounting plate 202 is movably connected to both sides of the mounting frame 201 via bearings. A fixing rod 203 is fitted inside the mounting plate 202. A stop block 204 is fixedly connected to both sides of the fixing rod 203. The second disassembly and assembly mechanism 5 also includes an insert plate 502. The insert plate 502 is fixedly connected to the upper and lower surfaces of the extrusion frame 501. The rear surface of the insert plate 502 is fitted to the front surface of the mounting frame 201. Sound-absorbing cotton 7 is provided inside the mounting frame 201 and is attached to the outer surface of the extrusion frame 501. A duct 1 is fitted to the outer surface of the mounting frame 201. A connecting plate 3 is fixedly connected to both the front and rear surfaces of the duct 1, and the interior of the connecting plate 3 is fitted to the fixing rod 203.

[0029] The effect achieved by the entire embodiment 3 is as follows: When the sound-absorbing cotton 7 needs to be replaced, the worker rotates and pulls the fixing rod 203 to separate it from the hole in the connecting plate 3, pulls the insert plate 502 out of the mounting frame 201, and separates the compression frame 501 from the mounting frame 201. By separating the compression frame 501 from the mounting frame 201, the old sound-absorbing cotton 7 that has aged and is hooked by the barbed block 205 is taken out. After the old sound-absorbing cotton 7 is taken out, the new sound-absorbing cotton 7 is filled into the mounting frame 201. The compression frame 501 is embedded into the interior of the mounting frame 201 to compact the sound-absorbing cotton 7. The other side of the sound-absorbing cotton 7 will be pierced by the barbed block 205. The insert plate 502 is inserted into the slot of the mounting frame 201, thereby locking the compression frame 501 in the compressed position. The fixing rod 203 is pushed through the interior of the connecting plate 3. The position of the stop block 204 can be adjusted by rotating the fixing rod 203, thus completing the connection between the mounting frame 201 and the air duct 1.

[0030] The working principle of the entire device is as follows: new sound-absorbing cotton 7 is filled into the mounting frame 201, the extrusion frame 501 is embedded into the mounting frame 201 to compact the sound-absorbing cotton 7, and the other side of the sound-absorbing cotton 7 is pierced by the spike 205. The insert plate 502 is inserted into the slot of the mounting frame 201, thereby locking the extrusion frame 501 in the compacted position. The fixing rod 203 is pushed through the interior of the connecting plate 3 to complete the installation of the sound-absorbing cotton. The sound-absorbing cotton can be used to reduce noise in the air duct.

[0031] When the duct 4 is affected by the vibration caused by the wind, the elastic deformation of the rubber block 606 and rubber strip 604 causes the spring 605 to cooperate with the rubber block 606 to further consume the vibration energy and reduce the residual vibration amplitude. The limiting function of the joint 602 can prevent the duct 4 from lateral displacement during vibration. Together with the elastic deformation of the rubber block 606 and rubber strip 604, the elastic reset of the spring 605, and the friction damping of the friction seat 603 and the joint 602, a multi-level buffer mechanism is formed, which reduces the vibration amplitude of the duct 4 and thus avoids the low-frequency noise problem caused by vibration.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A noise reduction structure for air conditioning ducts, characterized in that: The system includes a duct (4), a buffer mechanism (6), a first disassembly and assembly mechanism (2), and a second disassembly and assembly mechanism (5). The buffer mechanism (6) includes a rubber strip (604), a limiting ring (601), and a joint (602). The rubber strip (604) is fixedly connected to the side surface of the limiting ring (601), and the side surface of the limiting ring (601) is in contact with the outer wall of the duct (4). The rubber strip (604), the limiting ring (601), and the joint (602) are used to dampen and buffer the duct (4) to prevent the duct (4) from generating low-frequency noise due to vibration. The first disassembly and assembly mechanism (2) includes a mounting frame (201) and a spike (205). The spike (205) is fixedly connected to the inner wall of the mounting frame (201). The second disassembly and assembly mechanism (5) includes a compression frame (501). The compression frame (501) is internally fitted to the mounting frame (201). The mounting frame (201), spike (205), and compression frame (501) are used to disassemble and replace the filler used for noise reduction.

2. The noise reduction structure for an air conditioning duct according to claim 1, characterized in that: The buffer mechanism (6) further includes a rubber block (606), the side surface of which is fixedly connected to the side surface of the limiting ring (601), a spring (605) is fixedly connected to the side surface of the rubber block (606), and the left end of the spring (605) is fixedly connected to the inner wall of the compression frame (501). Friction seats (603) are fixedly connected to both the upper and lower surfaces of the limiting ring (601), and the upper surface of the friction seat (603) is movably connected to the lower surface of the joint (602). The upper surface of the joint (602) is movably connected to the inner wall of the compression frame (501).

3. The noise reduction structure for an air conditioning duct according to claim 1, characterized in that: The first disassembly and assembly mechanism (2) further includes an mounting plate (202). The side surface of the mounting plate (202) is movably connected to both sides of the mounting frame (201) via bearings. A fixing rod (203) is fitted inside the mounting plate (202), and a stop block (204) is fixedly connected to both sides of the fixing rod (203).

4. The noise reduction structure for an air conditioning duct according to claim 1, characterized in that: The second disassembly and assembly mechanism (5) further includes a insert plate (502), which is fixedly connected to the upper and lower surfaces of the extrusion frame (501), and the rear surface of the insert plate (502) is fitted and connected to the front surface of the mounting frame (201).

5. The noise reduction structure for an air conditioning duct according to claim 1, characterized in that: The mounting frame (201) is provided with sound-absorbing cotton (7) inside, and the sound-absorbing cotton (7) is attached to the outer surface of the extrusion frame (501).

6. The noise reduction structure for an air conditioning duct according to claim 1, characterized in that: The outer surface of the mounting frame (201) is fitted with a duct (1), and the front and rear surfaces of the duct (1) are fixedly connected with connecting plates (3), and the interior of the connecting plates (3) is fitted with a fixing rod (203).

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