Noise reduction device on ventilating duct

Abstract

The utility model discloses a noise reduction device on a ventilating duct, which belongs to the technical field of ventilating duct noise reduction, and adopts the technical scheme that the noise reduction device comprises a ventilating duct body, the outer side of the ventilating duct body is movably connected with a noise reduction component, and the left side of the ventilating duct body is movably connected with a mounting pad; the inner side of the sound absorption cotton block is connected with the outer side of the ventilation pipe body in a sleeved mode, the outer side of the sound absorption cotton block is connected with the inner side of the sound insulation foam in a sleeved mode, and the outer side of the sound insulation foam is movably connected with the inner side of the connecting block. According to the noise reduction ventilation pipe, noise formed on the inner side of the ventilation pipe body can be greatly reduced, finally, a user sleeves the outer side of the sound insulation sponge with a connecting block and a connecting piece and enables the connecting block and the connecting piece to be in bolted connection, sleeving of the sound insulation foam and a sound absorption cotton block is protected, and by arranging a mounting pad matched with the ventilation pipe body, the noise reduction effect is improved. The ventilation pipe is used for improving the installation sealing performance of the ventilation pipe body.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation pipe noise reduction, in particular to a noise reduction device on a ventilation duct. Background Art

[0002] A duct is a pipe used in a ventilation system to transfer air from one place to another to achieve indoor air circulation and renewal. The duct is usually made of metal, plastic or other materials. Its shape can be circular, rectangular or other geometric shapes, depending on the specific application and needs.

[0003] The patent document with publication number CN217003645U discloses a leakage-proof connection structure for a ventilation pipe, including a top plate, a top plate side plate fixedly installed on one side of the top plate, a first outer frame fixedly sleeved on the top ends of the top plate and the top plate side plates, a mounting structure movably sleeved on the outer side of the first outer frame, a closing structure fixedly installed on the other end of the top plate, and a first inner frame fixedly installed on one side of the first outer frame. The utility model drives the rotation of the gear by the operation of a motor provided, and the corresponding rack can move vertically under the rotation of the gear, thereby driving the baffle to descend. When descending, the rack will send the bottom of the baffle into the closed groove through the side rail, thereby achieving the closure of the ventilation pipe. In an emergency, the ventilation pipe can be sealed to achieve the purpose of leakage prevention.

[0004] When the existing ventilation system is in operation, the air flowing in the ventilation duct will generate noise, especially when the air speed is high or the duct design is improper. Such noise may affect the quality of life of the occupants. For example, in a family residence or office space, excessive noise may cause unnecessary interference and discomfort. Therefore, a noise reduction device on the ventilation duct is proposed. Utility Model Content

[0005] The utility model provides a noise reduction device on a ventilation duct, aiming to solve the problem that when the existing ventilation system is running, the air flowing in the ventilation duct will generate noise, especially when the air speed is high or the duct design is improper, the noise may affect the quality of life of the occupants. For example, in a family residence or office space, excessive noise may cause unnecessary interference and discomfort. For this reason, a noise reduction device on the ventilation duct is proposed, thereby affecting the use effect of the ventilation duct.

[0006] The utility model is implemented as follows: a noise reduction device on a ventilation duct comprises a ventilation duct body, a noise reduction component is movably connected to the outside of the ventilation duct body, and a mounting pad is movably connected to the left side of the ventilation duct body;

[0007] The noise reduction component includes a sound-absorbing cotton block, a sound-insulating foam, a connecting block and a connecting piece. The inner side of the sound-absorbing cotton block is sleeved with the outer side of the ventilation duct body, the outer side of the sound-absorbing cotton block is sleeved with the inner side of the sound-insulating foam, the outer side of the sound-insulating foam is movably connected to the inner side of the connecting block, the outer side of the sound-insulating foam is movably connected to the inner side of the connecting piece, and the bottom of the connecting block is bolted to the top of the connecting piece.

[0008] In order to achieve the effect of stable connection between the noise reduction component and the ventilation duct body, as a preferred noise reduction device on a ventilation duct of the utility model, the outer side of the connecting block is movably connected to the inner side of the ventilation duct body, and the outer side of the connecting piece is movably connected to the inner side of the ventilation duct body.

[0009] In order to achieve the effect of protecting the sound insulation foam, as a noise reduction device on a ventilation duct of the utility model, a buffer block is fixedly connected to the outside of the sound insulation foam, and the number of the buffer blocks is several and evenly distributed on the outside of the buffer block.

[0010] In order to achieve the effect of increasing the sealing of the noise reduction component and the ventilation duct body, as a preferred noise reduction device on the ventilation duct of the utility model, a sealing block is sleeved on the outer side of the ventilation duct body, and the left side of the sealing block is movably connected to the right side of the connecting block, and the left side of the sealing block is movably connected to the right side of the connecting piece.

[0011] In order to achieve the effect of fastening the sound insulation foam with the ventilation pipe body, as a preferred noise reduction device on a ventilation duct of the utility model, the inner side of the sealing block is movably connected to the outer side of the sound insulation foam, and the number of the sealing blocks is two.

[0012] In order to achieve the effect that the ventilation duct body can be installed, as a preferred noise reduction device on a ventilation duct of the utility model, both sides of the ventilation duct body are provided with installation holes, and the number of the installation holes is several.

[0013] In order to facilitate the user to take the connecting block, as a preferred noise reduction device on a ventilation duct of the utility model, the top of the connecting block is fixedly connected with a fixing handle, the outer wall of the fixing handle is provided with anti-slip grooves, and the shape of the anti-slip grooves is a mesh.

[0014] In order to achieve the effect of increasing the installation sealing of the ventilation duct body, as a preferred noise reduction device on a ventilation duct of the utility model, the number of the mounting pads is two and they are respectively arranged on both sides of the ventilation duct body, and the mounting pads are connected to the ventilation duct body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The noise reduction device on the ventilation duct is provided with a ventilation duct body, a noise reduction component and a mounting pad. When the user needs to perform noise reduction treatment on the ventilation duct body, first, the user sets the sound-absorbing cotton block on the outer side of the ventilation duct body. By setting the attracting cotton block, the sound-absorbing cotton block can absorb the sound wave energy in the environment, reduce the propagation and reflection of sound, reduce the noise level and can isolate the sound to a certain extent. Then, the user sets the sound insulation foam on the outer side of the sound absorption cotton block. By setting the sound insulation foam, the sound insulation foam can absorb the sound wave energy like the sound absorption cotton block. When the sound wave passes through the sound insulation foam, its energy will be absorbed by the foam, reduce the propagation and reflection of sound, thereby reducing the noise level. By setting the sound absorption cotton block to absorb noise and the sound insulation foam to isolate noise, the noise formed on the inner side of the ventilation duct body can be greatly reduced. Finally, the user sets the connecting block and the connecting piece on the outer side of the sound insulation sponge and bolts the connecting block and the connecting piece to protect the setting of the sound insulation foam and the sound absorption cotton block. By setting the mounting pad matched with the ventilation duct body, it is used to increase the sealing of the ventilation duct body when it is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall structural diagram of the noise reduction device on the ventilation duct of the utility model;

[0018] Figure 2 This is a disassembled diagram of the noise reduction component in the utility model;

[0019] Figure 3 A diagram showing the overall structure of the noise reduction component in the utility model;

[0020] Figure 4 It is a cut-away diagram of the noise reduction component in the utility model;

[0021] Figure 5 This is a diagram showing the structural connection of the ventilation duct body part in the utility model.

[0022] In the figure, 1. ventilation duct body; 2. noise reduction component; 201. sound-absorbing cotton block; 202. sound insulation foam; 203. connecting block; 204. connecting piece; 3. mounting pad; 4. buffer block; 5. sealing block; 6. mounting hole; 7. fixing handle. DETAILED DESCRIPTION

[0023] 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 embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] See also Figure 1-5 The utility model provides a technical solution: a noise reduction device on a ventilation duct, comprising a ventilation duct body 1, a noise reduction component 2 is movably connected to the outside of the ventilation duct body 1, and a mounting pad 3 is movably connected to the left side of the ventilation duct body 1;

[0026] The noise reduction component 2 includes a sound-absorbing cotton block 201, a sound-insulating foam 202, a connecting block 203 and a connecting piece 204. The inner side of the sound-absorbing cotton block 201 is sleeved with the outer side of the ventilation duct body 1, the outer side of the sound-absorbing cotton block 201 is sleeved with the inner side of the sound-insulating foam 202, the outer side of the sound-insulating foam 202 is movably connected to the inner side of the connecting block 203, the outer side of the sound-insulating foam 202 is movably connected to the inner side of the connecting piece 204, and the bottom of the connecting block 203 is bolted to the top of the connecting piece 204.

[0027] In this embodiment: by setting the ventilation duct body 1, the noise reduction component 2 and the installation pad 3, when the user needs to perform noise reduction treatment on the ventilation duct body 1, first, the user sets the sound-absorbing cotton block 201 on the outside of the ventilation duct body 1. By setting the suction cotton block, the sound-absorbing cotton block 201 can absorb the sound wave energy in the environment, reduce the propagation and reflection of the sound, reduce the noise level and can isolate the sound to a certain extent. Then the user sets the sound insulation foam 202 on the outside of the sound insulation foam 202. By setting the sound insulation foam 202, the sound insulation foam 202 can absorb the sound wave energy like the sound absorption cotton block 201. When When sound waves pass through the sound-insulating foam 202, their energy will be absorbed by the foam, reducing the propagation and reflection of sound, thereby reducing the noise level. By arranging the sound-absorbing cotton block 201 to absorb noise and the sound-insulating foam 202 to isolate noise, the noise formed inside the ventilation duct body can be greatly reduced. Finally, the user puts the connecting block 203 and the connecting piece 204 on the outside of the sound-insulating sponge and bolts the connecting block 203 and the connecting piece 204 to protect the sound-insulating foam 202 and the sound-absorbing cotton block 201. By setting a mounting pad 3 that cooperates with the ventilation duct body 1, it is used to increase the sealing of the installed ventilation duct body 1.

[0028] As a technical optimization solution of the present invention, the outer side of the connecting block 203 is movably connected to the inner side of the ventilation pipe body 1 , and the outer side of the connecting piece 204 is movably connected to the inner side of the ventilation pipe body 1 .

[0029] In this embodiment, the connection block 203 and the connection member 204 are arranged to cooperate with the ventilation duct body 1 so that the noise reduction component 2 can be installed on the outside of the ventilation duct body 1 .

[0030] As a technical optimization solution of the present invention, a buffer block 4 is fixedly connected to the outer side of the sound insulation foam 202 , and the number of the buffer blocks 4 is several and evenly distributed on the outer side of the buffer block 4 .

[0031] In this embodiment, a plurality of buffer blocks 4 fixed to the sound insulation foam 202 are provided to prevent the connection blocks 203 and the connection members 204 from squeezing and damaging the sound insulation foam 202 .

[0032] As a technical optimization solution of the utility model, a sealing block 5 is sleeved on the outer side of the ventilation duct body 1, and the left side of the sealing block 5 is movably connected to the right side of the connecting block 203, and the left side of the sealing block 5 is movably connected to the right side of the connecting piece 204.

[0033] In this embodiment: a sealing block 5 connected to the ventilation pipe body 1 is provided to enable the connection block 203 and the connection piece 204 to cooperate with the connection of the ventilation pipe body 1 to be sealed.

[0034] As a technical optimization solution of the present invention, the inner side of the sealing block 5 is movably connected to the outer side of the sound insulation foam 202, and the number of the sealing blocks 5 is two.

[0035] In this embodiment, the sealing block 5 is arranged on the outside of the sound insulation foam 202 so as to tighten the sleeve of the sound insulation foam 202 to a certain extent.

[0036] As a technical optimization solution of the present invention, mounting holes 6 are provided on both sides of the ventilation pipe body 1, and the number of the mounting holes 6 is several.

[0037] In this embodiment, the ventilation duct body 1 is provided with a plurality of mounting holes 6 so that the ventilation duct body 1 can be connected.

[0038] As a technical optimization solution of the present invention, a fixing handle 7 is fixedly connected to the top of the connecting block 203, and an outer wall of the fixing handle 7 is provided with anti-skid patterns, and the shape of the anti-skid patterns is mesh-like.

[0039] In this embodiment, a fixing handle 7 fixed to the connection block 203 is provided to facilitate the user to take the connection block 203 , and an anti-slip pattern is provided on the fixing handle 7 to increase the friction force on the surface of the fixing handle 7 .

[0040] As a technical optimization solution of the present invention, there are two mounting pads 3 which are respectively arranged on both sides of the ventilation duct body 1 , and the mounting pads 3 are connected to the ventilation duct body 1 .

[0041] In this embodiment, a mounting pad 3 matched with the ventilation duct body 1 is provided to increase the sealing performance of the ventilation duct body 1 during installation.

[0042] Working principle: First, when the user needs to perform noise reduction treatment on the ventilation duct body 1, first, the user sets the sound-absorbing cotton block 201 on the outside of the ventilation duct body 1. By setting the attracting cotton block, the sound-absorbing cotton block 201 can absorb the sound wave energy in the environment, reduce the propagation and reflection of the sound, reduce the noise level and isolate the sound to a certain extent. Then the user sets the sound insulation foam 202 on the outside of the sound insulation foam 202. By setting the sound insulation foam 202, the sound insulation foam 202 can absorb the sound wave energy like the sound absorption cotton block 201. When the sound wave passes through the sound insulation foam 202 When sound is emitted, its energy will be absorbed by the foam, reducing the propagation and reflection of sound, thereby reducing the noise level. By arranging the sound-absorbing cotton block 201 to absorb noise and the sound-proof foam 202 to isolate noise, the noise formed inside the ventilation duct body can be greatly reduced. Finally, the user puts the connecting block 203 and the connecting piece 204 on the outside of the sound-proof sponge and bolts the connecting block 203 and the connecting piece 204 to protect the sound-proof foam 202 and the sound-absorbing cotton block 201. By arranging the installation pad 3 that cooperates with the ventilation duct body 1, it is used to increase the sealing of the ventilation duct body 1 when it is installed.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A noise reduction device for a ventilation duct, comprising a ventilation duct body (1), characterized in that: A noise reduction component (2) is movably connected to the outside of the ventilation duct body (1), and a mounting pad (3) is movably connected to the left side of the ventilation duct body (1); The noise reduction component (2) comprises a sound-absorbing cotton block (201), a sound-insulating foam (202), a connecting block (203) and a connecting piece (204); the inner side of the sound-absorbing cotton block (201) is sleeved with the outer side of the ventilation pipe body (1); the outer side of the sound-absorbing cotton block (201) is sleeved with the inner side of the sound-insulating foam (202); the outer side of the sound-insulating foam (202) is movably connected to the inner side of the connecting block (203); the outer side of the sound-insulating foam (202) is movably connected to the inner side of the connecting piece (204); and the bottom of the connecting block (203) is bolted to the top of the connecting piece (204).

2. A noise reduction device for a ventilation duct according to claim 1, characterized in that: The outer side of the connection block (203) is movably connected to the inner side of the ventilation pipe body (1), and the outer side of the connection piece (204) is movably connected to the inner side of the ventilation pipe body (1).

3. The noise reduction device for a ventilation duct according to claim 1, characterized in that: A buffer block (4) is fixedly connected to the outer side of the sound insulation foam (202); the buffer blocks (4) are in multiple numbers and are evenly distributed on the outer side of the buffer block (4).

4. The noise reduction device for a ventilation duct according to claim 1, characterized in that: A sealing block (5) is sleeved on the outer side of the ventilation pipe body (1); the left side of the sealing block (5) is movably connected to the right side of the connecting block (203); and the left side of the sealing block (5) is movably connected to the right side of the connecting piece (204).

5. A noise reduction device for a ventilation duct according to claim 4, characterized in that: The inner side of the sealing block (5) is movably connected to the outer side of the sound insulation foam (202), and the number of the sealing blocks (5) is two.

6. The noise reduction device for a ventilation duct according to claim 1, characterized in that: Both sides of the ventilation pipe body (1) are provided with mounting holes (6), and the number of the mounting holes (6) is several.

7. The noise reduction device for a ventilation duct according to claim 1, characterized in that: A fixing handle (7) is fixedly connected to the top of the connection block (203), and an outer wall of the fixing handle (7) is provided with anti-skid patterns, wherein the anti-skid patterns are in a mesh shape.

8. The noise reduction device for a ventilation duct according to claim 1, characterized in that: The number of the mounting pads (3) is two and they are respectively arranged on both sides of the ventilation pipe body (1); the mounting pads (3) are in communication with the ventilation pipe body (1).

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