A noise reduction structure of an air conditioning ventilation system

Abstract

This utility model provides a noise reduction structure for an air conditioning ventilation system, belonging to the field of air conditioning system noise reduction technology. It includes a ventilation duct with sound-insulating cotton installed inside, and a filter assembly at the front end of the ventilation duct. The filter assembly includes a fixed frame, which is fixedly installed inside the ventilation duct. The sound-insulating cotton effectively isolates noise from inside the ventilation duct, achieving noise reduction. With the positioning component, when the filter screen has little dust and needs cleaning, the filter screen, movable frame, and fixed frame can be easily rotated out. At this time, the filter screen is not detached from the ventilation duct, allowing workers to clean it directly without disassembly, making operation convenient. With the limiting component, when deep cleaning of the filter screen is required, it can be directly removed from inside the movable frame for deep cleaning, also making operation convenient.

Description

Technical Field

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

[0002] An air conditioning and ventilation system is an integrated system that combines air conditioning units and ventilation equipment to treat indoor air. It mainly consists of air handling units, duct networks, fresh air inlets, and cooling devices. The system regulates air temperature, humidity, and cleanliness through forced circulation and is widely used in large, enclosed spaces such as hotels and shopping malls. Compared to independent air conditioning, it has energy savings advantages, but requires a fresh air module to maintain air quality.

[0003] During the operation of an air conditioning and ventilation system, a continuous flow of air enters the ventilation ducts, generating noise. The stronger the airflow, the greater the noise. To avoid affecting users, noise reduction measures are usually installed. Currently, the noise reduction structure of air conditioning and ventilation systems is typically equipped with filters. However, the filters need to be cleaned regularly to prevent clogging. While the filters in current noise reduction structures are usually fixed with bolts, which, although secure, require tools for disassembly and cleaning, making the process inconvenient. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology and to propose a noise reduction structure for an air conditioning ventilation system.

[0005] The technical problem to be solved by this utility model is to provide a noise reduction structure for an air conditioning and ventilation system to solve the problem of inconvenient disassembly in existing systems.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A noise reduction structure for an air conditioning ventilation system includes: a ventilation duct, the inner cavity of which is fitted with sound insulation cotton, and a filter assembly is provided at the front end of the ventilation duct; the filter assembly includes a fixed frame, which is fixedly installed in the inner cavity of the ventilation duct, and a movable frame is movably installed in the inner cavity of the fixed frame, a positioning component is provided between the movable frame and the fixed frame, and a filter screen is installed in the inner cavity of the movable frame, with a limit component provided on the filter screen.

[0008] Preferably, a movable shaft is fixedly installed through the movable frame. The movable shaft is vertically arranged, and both ends of the movable shaft pass through the fixed frame and are rotatably connected to the fixed frame.

[0009] Preferably, multiple locking blocks are fixedly installed on the outer wall of the filter screen, and multiple locking slots are opened on the inner wall of the movable frame, with the locking blocks movably engaging in the inner cavity of the corresponding locking slots.

[0010] Preferably, the positioning component includes a fixed block, a vertical groove is provided on the movable frame, the fixed block is fixedly installed in the inner cavity of the vertical groove, and multiple vertical shafts are fixedly installed on the top and bottom of the fixed block. One end of each of the multiple vertical shafts is fixedly connected to the inner wall of the vertical groove, and a movable block is movably installed through the multiple vertical shafts on the same side. A spring is fixedly installed between the movable block and the fixed block, and two positioning blocks are fixedly installed on the outer wall of the movable block. The two positioning blocks are respectively attached to the two sides of the outer wall of the fixed block.

[0011] Preferably, anti-slip seats are fixedly installed on the outer walls of both movable blocks.

[0012] Preferably, the limiting component includes two round shafts, both of which are rotatably connected to the filter screen, and both ends of the two round shafts are fixedly installed with limiting blocks, which are respectively attached to the two sides of the outer wall of the movable frame.

[0013] Preferably, rubber pads are fixedly installed on opposite sides of the two limiting blocks, and the rubber pads are in contact with the outer wall of the movable frame.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects:

[0015] In the above solution, by installing sound insulation cotton, the noise inside the ventilation duct can be isolated to a great extent, thus achieving the purpose of noise reduction;

[0016] In the above solution, by setting the positioning component, when there is not much dust on the filter screen and it needs to be cleaned, the filter screen and the movable frame and the fixed frame can be easily rotated out. At this time, the filter screen and the ventilation duct are not disassembled, and the staff can directly clean the filter screen without disassembly, which is convenient to operate.

[0017] In the above solution, by setting the limiting component, the filter screen can be directly removed from the inside of the movable frame for deep cleaning when deep cleaning is required, which is convenient to operate. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0019] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0020] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the filter assembly of this utility model;

[0022] Figure 4 This is an exploded view of the structure of the filter assembly of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the limiting component of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the positioning component of this utility model.

[0025] [Figure Labels]

[0026] 1. Ventilation duct; 2. Sound insulation cotton; 3. Filter assembly; 31. Fixed frame; 32. Movable frame; 33. Filter screen; 34. Locking block; 35. Locking groove; 36. Movable shaft; 37. Positioning assembly; 371. Vertical groove; 372. Fixed block; 373. Vertical shaft; 374. Movable block; 375. Spring; 376. Positioning block; 377. Anti-slip seat; 38. Limiting assembly; 381. Round shaft; 382. Limiting block; 383. Rubber pad.

[0027] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The present invention provides a noise reduction structure for an air conditioning ventilation system, comprising: a ventilation duct 1, with sound insulation cotton 2 installed in the inner cavity of the ventilation duct 1, and a filter assembly 3 provided at the front end of the ventilation duct 1; the filter assembly 3 includes a fixed frame 31, which is fixedly installed in the inner cavity of the ventilation duct 1, and a movable frame 32 is movably installed in the inner cavity of the fixed frame 31, a positioning component 37 is provided between the movable frame 32 and the fixed frame 31, and a filter screen 33 is installed in the inner cavity of the movable frame 32, with a limiting component 38 provided on the filter screen 33.

[0031] When in use, ventilation duct 1 is used for real-time ventilation. During ventilation, sound insulation cotton 2 is used to reduce noise, and filter component 3 is used to filter impurities in the air.

[0032] Specifically, in the ventilation assembly, the air is filtered by the filter screen 33, and a limiting component 38 is provided between the filter screen 33 and the movable frame 32, which can release the limiting component 38 and disassemble the filter screen 33. A positioning component 37 is provided between the movable frame 32 and the fixed frame 31, which can deflect the movable frame 32 and the filter screen 33 to the outside when cleaning the filter screen 33, so as to facilitate the cleaning of the filter screen 33.

[0033] In this embodiment, as Figure 4 As shown; a movable shaft 36 is fixedly installed through the movable frame 32. The movable shaft 36 is vertically arranged, and both ends of the movable shaft 36 pass through the fixed frame 31 and are rotatably connected to the fixed frame 31.

[0034] In use, the movable shaft 36 is used to realize the rotational connection between the movable frame 32 and the fixed frame 31. When the movable frame 32 drives the filter screen 33 to deflect synchronously, it makes a circular motion with the movable shaft 36 as the center, and rotates the filter screen 33 out from the inside of the ventilation pipe 1, making it convenient for staff to clean its inner and outer sides.

[0035] In this embodiment, as Figure 4 As shown; multiple clips 34 are fixedly installed on the outer wall of the filter screen 33, and multiple slots 35 are opened on the inner wall of the movable frame 32, with the clips 34 movably engaging in the inner cavity of the corresponding slots 35.

[0036] In use, multiple locking blocks 34 and locking slots 35 are used to achieve the docking limit between the filter screen 33 and the movable frame 32, making the installation between the filter screen 33 and the movable frame 32 more stable.

[0037] In this embodiment, as Figures 4-6 As shown; the positioning component 37 includes a fixed block 372, and a vertical groove 371 is provided on the movable frame 32. The fixed block 372 is fixedly installed in the inner cavity of the vertical groove 371, and multiple vertical shafts 373 are fixedly installed on the top and bottom of the fixed block 372. One end of the multiple vertical shafts 373 is fixedly connected to the inner wall of the vertical groove 371, and a movable block 374 is movably installed through the multiple vertical shafts 373 on the same side. A spring 375 is fixedly installed between the movable block 374 and the fixed block 372, and two positioning blocks 376 are fixedly installed on the outer wall of the movable block 374. The two positioning blocks 376 are respectively attached to the two sides of the outer wall of the fixed block 372.

[0038] In use, press the two movable blocks 374 respectively, so that the two movable blocks 374 compress the corresponding springs 375 respectively. At the same time, the two movable blocks 374 drive the corresponding positioning blocks 376 away from the fixed frame 31. At this time, there is no positioning measure between the movable frame 32 and the fixed frame 31. The movable frame 32 can be deflected around the movable axis 36. After cleaning, the movable frame 32 is reset, and the multiple positioning blocks 376 are reset under the elastic force of the springs 375. They are then repositioned and locked onto both sides of the outer wall of the fixed frame 31, realizing the positioning between the movable frame 32 and the fixed frame 31, and further realizing the installation of the filter screen 33.

[0039] In this embodiment, as Figure 6 As shown; anti-slip seats 377 are fixedly installed on the outer walls of both movable blocks 374.

[0040] When in use, the anti-slip seat 377 can improve the convenience for workers to apply force to the outer wall of the movable block 374 and avoid slippage.

[0041] In this embodiment, as Figures 4-5 As shown; the limiting component 38 includes two round shafts 381, both of which are rotatably connected to the filter screen 33, and both ends of the two round shafts 381 are fixedly installed with limiting blocks 382, ​​which are respectively attached to the two sides of the outer wall of the movable frame 32.

[0042] In use, two limiting blocks 382 are used to limit the filter screen 33 on both sides of the outer wall of the movable frame 32 to achieve the limiting installation between the filter screen 33 and the movable frame 32. When disassembling the filter screen 33, simply rotate the limiting block 382 around the circular axis 381 to rotate the limiting block 382 to a horizontal state, and the filter screen 33 can be directly removed from the inside of the movable frame 32. The operation is convenient.

[0043] In this embodiment, as Figures 4-5 As shown; rubber pads 383 are fixedly installed on the opposite side of the two limiting blocks 382, ​​and the rubber pads 383 are in contact with the outer wall of the movable frame 32.

[0044] When in use, the rubber pad 383 effectively increases the friction between the limit block 382 and the movable frame 32, thereby improving the limiting effect.

[0045] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A noise reduction structure for an air conditioning ventilation system, characterized in that, include: Ventilation duct (1), the inner cavity of which is equipped with sound insulation cotton (2), and a filter assembly (3) is provided at the front end of the ventilation duct (1); The filter assembly (3) includes a fixed frame (31), which is fixedly installed in the inner cavity of the ventilation pipe (1). A movable frame (32) is movably installed in the inner cavity of the fixed frame (31). A positioning component (37) is provided between the movable frame (32) and the fixed frame (31). A filter screen (33) is installed in the inner cavity of the movable frame (32). A limiting component (38) is provided on the filter screen (33).

2. The noise reduction structure of an air conditioning ventilation system according to claim 1, characterized in that: A movable shaft (36) is fixedly installed through the movable frame (32). The movable shaft (36) is vertically arranged, and both ends of the movable shaft (36) pass through the fixed frame (31) and are rotatably connected to the fixed frame (31).

3. The noise reduction structure of an air conditioning ventilation system according to claim 1, characterized in that: Multiple locking blocks (34) are fixedly installed on the outer wall of the filter screen (33), and multiple slots (35) are opened on the inner wall of the movable frame (32). The locking blocks (34) are movably locked into the inner cavity of the corresponding slots (35).

4. The noise reduction structure of an air conditioning ventilation system according to claim 1, characterized in that: The positioning component (37) includes a fixed block (372), and a vertical groove (371) is provided on the movable frame (32). The fixed block (372) is fixedly installed in the inner cavity of the vertical groove (371), and multiple vertical shafts (373) are fixedly installed on the top and bottom of the fixed block (372). One end of the multiple vertical shafts (373) is fixedly connected to the inner wall of the vertical groove (371), and a movable block (374) is movably installed through the multiple vertical shafts (373) on the same side. A spring (375) is fixedly installed between the movable block (374) and the fixed block (372), and two positioning blocks (376) are fixedly installed on the outer wall of the movable block (374). The two positioning blocks (376) are respectively attached to the two sides of the outer wall of the fixed block (372).

5. The noise reduction structure of an air conditioning ventilation system according to claim 4, characterized in that: Anti-slip seats (377) are fixedly installed on the outer walls of both movable blocks (374).

6. The noise reduction structure of an air conditioning ventilation system according to claim 1, characterized in that: The limiting component (38) includes two round shafts (381), both of which are rotatably connected to the filter screen (33), and both ends of the two round shafts (381) are fixedly installed with limiting blocks (382), which are respectively attached to the two sides of the outer wall of the movable frame (32).

7. The noise reduction structure of an air conditioning ventilation system according to claim 6, characterized in that: Rubber pads (383) are fixedly installed on opposite sides of the two limiting blocks (382), and the rubber pads (383) are in contact with the outer wall of the movable frame (32).

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