Air port bottom box capable of discharging air uniformly
By introducing a flow stabilizer and quick-release structure into the air vent base box, the problem of uneven airflow distribution in traditional air vent base boxes is solved, achieving improved uniformity and efficiency of airflow, while reducing noise impact and providing convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG CHAIN WIND ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional air vent base boxes have a simple design and lack airflow regulation structures, resulting in uneven airflow distribution and affecting air output efficiency.
A uniform air outlet base box was designed, which adopts a quick-release structure consisting of a vertically set flow stabilizer plate and elastic snap-fit pieces and barbs. The airflow is divided by evenly distributed ventilation holes to form a laminar flow effect, and the smoothness and cleanliness of the flow environment are improved by using thermal insulation cotton and sound insulation cotton.
It achieves uniform airflow diffusion, improves air outlet efficiency, reduces equipment noise, and facilitates quick installation and cleaning maintenance of the airflow stabilizer.
Smart Images

Figure CN224151037U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fresh air system technology, and in particular to an air outlet base box with uniform airflow. Background Technology
[0002] In recent years, with the improvement of people's material living standards, people have paid more and more attention to indoor and outdoor environments. In particular, air pollution has a significant impact on people's living environment and indoor comfort, making fresh air systems increasingly popular in the market. An air vent box is an accessory used in fresh air systems, primarily serving as a transition and connection between the duct and the air vent. When the dimensions of the duct and the air vent are inconsistent, an air vent box needs to be installed between them to ensure that air can flow smoothly from the duct into the air vent.
[0003] Traditional air vent boxes are relatively simple in design and lack airflow regulation structures, which can lead to uneven airflow distribution. Over time, this can affect the efficiency of airflow. Therefore, an improved air vent box with uniform airflow has been developed. Utility Model Content
[0004] In view of the shortcomings of the prior art, this application provides an air outlet base box with uniform air output, which overcomes the shortcomings of the prior art and aims to solve the problem that the traditional air outlet base box is relatively simple in design and lacks airflow adjustment structure, which leads to uneven airflow distribution and affects the air output efficiency over time.
[0005] To achieve the above objectives, this application provides the following technical solution: a uniformly vented air box, comprising an air box, an air outlet at the bottom of the air box, a valve connector fixedly installed at the rear end of the air box, and a PE pipe fixedly connected to the air box via the valve connector; a flow stabilizer plate is provided inside the air box, and the direction of the flow stabilizer plate is perpendicular to the flow direction inside the air box; a plurality of ventilation holes are uniformly provided on the outer surface of the flow stabilizer plate; a fixing seat is fixedly installed inside the air box behind the flow stabilizer plate; an insertion groove is provided inside the fixing seat; a fixing buckle is slidably inserted into the insertion groove; a through hole is provided at the bottom of the flow stabilizer plate for the fixing buckle to pass through; elastic snap-fit pieces are symmetrically connected to the outer wall of the fixing buckle; a barb is provided at the front end of the elastic snap-fit piece; and snap-fit grooves for the barb to be inserted are symmetrically provided on the outer walls of both sides of the fixing seat.
[0006] By adopting the above technical solution, the fixing buckle is slidably inserted into the inside of the fixing base through the through hole. The elastic snap-fit piece is deformed by compression. After the barb slides along the inner wall of the insertion groove to the snap-fit groove position, the elastic restoring force drives the barb to embed into the groove to form a mechanical interlock. The flow stabilizer plate can then be fixedly installed inside the air box. The vertically set flow stabilizer plate divides the airflow through evenly distributed ventilation holes to form a laminar flow effect, achieving uniform airflow diffusion and ensuring the uniformity of the air outlet. The quick-release structure composed of the elastic snap-fit piece and the barb cooperates with the snap-fit groove to realize the quick installation or removal of the flow stabilizer plate, which facilitates timely replacement, maintenance and cleaning of the flow stabilizer plate, maintains the smoothness and cleanliness of the internal flow environment, and helps to improve the air outlet efficiency.
[0007] As a preferred technical solution of this application, the flow stabilizer is located between the fixing buckle and the fixing seat, and the outer walls of both sides of the flow stabilizer abut against the outer walls of the fixing buckle and the fixing seat respectively, and the outer wall of the elastic snap-fit piece fits against the inner wall of the through hole.
[0008] By adopting the above technical solution, a mechanical constraint is formed, which can resist the displacement caused by airflow impact and ensure the installation stability of the flow stabilizer plate.
[0009] As a preferred technical solution of this application, the number of through holes is three and they are evenly distributed along the length direction of the flow stabilizer plate. The number of the fixing seat, the fixing buckle and the through holes are the same and correspond one-to-one.
[0010] By adopting the above technical solution, the force-bearing area of the flow stabilizer is divided into multiple equivalent intervals by uniformly distributed fixed points, preventing the flow stabilizer from tilting or shifting due to airflow impact.
[0011] As a preferred technical solution of this application, the outer side of the air box is provided with heat insulation cotton, and the inner side of the air box is provided with sound insulation cotton.
[0012] By adopting the above technical solutions, the use of thermal insulation cotton provides insulation, keeping the circulating air inside the air box at a constant temperature, and the use of sound insulation cotton provides sound insulation, reducing the noise impact of the equipment in the operating environment.
[0013] As a preferred technical solution of this application, connecting ears are fixedly installed on both outer walls of the bellows.
[0014] By adopting the above technical solution, the bellows is fixedly installed inside the air outlet via connecting ears.
[0015] As a preferred technical solution of this application, the air valve connector is internally rotatably connected to a rotating shaft, and a butterfly plate is provided on the rotating shaft. Mounting seats are symmetrically installed on both outer walls of the air valve connector, and mounting buckles are slidably inserted into the interior of the mounting seats. The air valve connector is fixedly connected to the PE pipe through the mounting buckles.
[0016] By adopting the above technical solution, the PE pipe is fixedly installed inside the air valve connector through the cooperation between the mounting base and the mounting buckle. The combination of the rotating shaft and the butterfly plate realizes the precise adjustment of the medium flow rate. The opening and closing or flow control can be quickly completed by changing the rotation angle of the butterfly plate.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] 1. In this utility model, by sliding the fixing buckle through the through hole into the inside of the fixing base, the elastic snap-fit piece is compressed and deformed. After the barb slides along the inner wall of the insertion groove to the snap-fit groove position, the elastic restoring force drives the barb to embed into the groove to form a mechanical interlock, thus fixing the flow stabilizer plate inside the air box. The vertically set flow stabilizer plate divides the airflow through evenly distributed ventilation holes to form a laminar flow effect, achieving uniform airflow diffusion and ensuring the uniformity of the air outlet. The quick-release structure composed of the elastic snap-fit piece and the barb cooperates with the snap-fit groove to realize the quick installation or removal of the flow stabilizer plate, which facilitates timely replacement of the flow stabilizer plate for maintenance and cleaning, maintains the smoothness and cleanliness of the internal flow environment, and helps to improve the air outlet efficiency.
[0019] 2. In this utility model, the use of thermal insulation cotton provides thermal insulation, keeping the circulating air inside the bellows at a constant temperature. The use of sound insulation cotton provides sound insulation, reducing the noise impact of the equipment in the operating environment.
[0020] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto. Attached Figure Description
[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0022] Figure 1 This is a schematic diagram of the overall structure of this application;
[0023] Figure 2 This is a schematic diagram of the internal structure of the bellows in this application;
[0024] Figure 3 This is a partial structural diagram of this application;
[0025] Figure 4 This is a schematic diagram showing the connection between the fixing base and the fixing buckle in this application;
[0026] Figure 5This is a schematic diagram of the structural composition of the damper connector of this application.
[0027] In the diagram: 1. Air box; 2. Air outlet; 3. Air valve connector; 4. Connecting ear; 5. Thermal insulation cotton; 6. Sound insulation cotton; 7. Flow stabilizer plate; 8. Ventilation hole; 9. Fixing base; 10. Fixing buckle; 11. Through hole; 12. Insertion groove; 13. Elastic snap-fit piece; 14. Barb; 15. Snap-fit groove; 16. Rotating shaft; 17. Butterfly plate; 18. Mounting base; 19. Mounting buckle. Detailed Implementation
[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0029] like Figure 1 - Figure 5 As shown, this embodiment provides a uniformly vented air box, including an air box 1. An air outlet 2 is provided at the bottom of the air box 1. A valve connector 3 is fixedly installed at the rear end of the air box 1, and a PE pipe is fixedly connected to the air box 1 through the valve connector 3. A flow stabilizer 7 is provided inside the air box 1, and the direction of the flow stabilizer 7 is perpendicular to the flow direction inside the air box 1. Several ventilation holes 8 are evenly provided on the outer surface of the flow stabilizer 7. A fixing seat 9 is fixedly installed inside the air box 1 behind the flow stabilizer 7. An insertion groove 12 is provided inside the fixing seat 9, and a fixing buckle 10 is slidably inserted into the insertion groove 12. A through hole 11 is provided at the bottom of the flow stabilizer 7 for the fixing buckle 10 to pass through. Elastic snap-fit pieces 13 are symmetrically connected to the outer wall of the fixing buckle 10. A barb 14 is provided at the front end of the elastic snap-fit piece 13. The two sides of the fixing seat 9 are... The wall is symmetrically provided with snap-fit grooves 15 for inserting the barbs 14. In use, by sliding the fixing buckle 10 through the through hole 11 into the inside of the fixing base 9, the elastic snap-fit piece 13 is compressed and deformed. After the barb 14 slides along the inner wall of the insertion groove 12 to the position of the snap-fit groove 15, the elastic restoring force drives the barb 14 to embed into the groove to form a mechanical interlock, so that the flow stabilizer 7 can be fixedly installed inside the air box 1. The vertically arranged flow stabilizer 7 divides the airflow through the evenly distributed ventilation holes 8 to form a laminar flow effect, realizes the uniform diffusion of airflow, and ensures the uniformity of the air outlet. The quick-release structure composed of the elastic snap-fit piece 13 and the barb 14 cooperates with the snap-fit groove 15 to realize the quick installation or removal of the flow stabilizer 7, which facilitates timely replacement of the flow stabilizer 7 for maintenance and cleaning, maintains the smoothness and cleanliness of the internal flow environment, and helps to improve the air outlet efficiency.
[0030] In this embodiment, as Figure 2-4As shown, the flow stabilizer 7 is located between the fixing buckle 10 and the fixing seat 9, and the outer walls on both sides of the flow stabilizer 7 abut against the outer walls of the fixing buckle 10 and the fixing seat 9 respectively. The outer wall of the elastic snap-fit piece 13 fits against the inner wall of the through hole 11. During use, it forms a mechanical constraint, which can resist the displacement caused by the airflow impact and ensure the installation stability of the flow stabilizer 7.
[0031] In this embodiment, as Figure 2-4 As shown, there are three through holes 11, which are evenly distributed along the length of the flow stabilizer plate 7. The number of fixing bases 9, fixing buckles 10 and through holes 11 are the same and correspond one-to-one. In use, the force-bearing area of the flow stabilizer plate 7 is divided into multiple equivalent intervals by the evenly distributed fixing points, so as to prevent the flow stabilizer plate 7 from tilting or shifting due to airflow impact.
[0032] In this embodiment, as Figure 1 and 2 As shown, the outer side of the air box 1 is provided with heat insulation cotton 5, and the inner side of the air box 1 is provided with sound insulation cotton 6. During use, the heat insulation cotton 5 is used to keep the temperature of the circulating air inside the air box 1 constant, and the sound insulation cotton 6 is used to reduce the noise impact of the equipment in the use environment.
[0033] In this embodiment, as Figure 1 As shown, connecting ears 4 are fixedly installed on both outer walls of the bellows 1. In use, the bellows 1 is fixedly installed in the air outlet through the connecting ears 4.
[0034] In this embodiment, as Figure 1 and 5 As shown, a rotating shaft 16 is rotatably connected inside the damper connector 3, and a butterfly plate 17 is provided on the rotating shaft 16. Mounting seats 18 are symmetrically installed on the outer walls of both sides of the damper connector 3. Mounting buckles 19 are slidably inserted into the interior of the mounting seats 18. The damper connector 3 is fixedly connected to the PE pipe through the mounting buckles 19. In use, the PE pipe is fixedly installed inside the damper connector 3 by the cooperation between the mounting seats 18 and the mounting buckles 19. The combination of the rotating shaft 16 and the butterfly plate 17 realizes the precise adjustment of the medium flow rate. The opening and closing or flow control can be quickly completed by changing the rotation angle of the butterfly plate 17.
[0035] The working principle of this utility model is as follows: When using the air outlet base box with uniform airflow of this application, first place the flow stabilizer plate 7 inside the air box 1, then slide the fixing buckle 10 through the through hole 11 into the fixing seat 9. The elastic snap-fit piece 13 is deformed by compression. After the barb 14 slides along the inner wall of the insertion groove 12 to the snap-fit groove 15, the elastic restoring force drives the barb 14 to embed into the groove to form a mechanical interlock, so that the flow stabilizer plate 7 can be fixedly installed inside the air box 1. Then, the PE pipe is placed inside the air valve connector 3, and the PE pipe is fixed by sliding the mounting buckle 19 into the mounting seat 18. In subsequent use, the vertically set flow stabilizer plate 7 divides the airflow through the evenly distributed ventilation holes 8 to form a laminar flow effect, realizes the uniform diffusion of airflow, and ensures the uniformity of airflow.
[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.
Claims
1. An air outlet uniform tuyere bottom box, comprising a wind box (1), characterized in that, The bottom of the air box (1) is provided with an air outlet (2). A valve connector (3) is fixedly installed at the rear end of the air box (1), and a PE pipe is fixedly connected to the air box (1) through the valve connector (3). A flow stabilizer plate (7) is provided inside the air box (1), and the direction of the flow stabilizer plate (7) is perpendicular to the flow direction inside the air box (1). Several ventilation holes (8) are evenly opened on the outer surface of the flow stabilizer plate (7). A valve is fixedly installed inside the air box (1) behind the flow stabilizer plate (7). The fixed base (9) has an insertion groove (12) inside, and a fixing buckle (10) is slidably inserted into the insertion groove (12). The bottom of the flow plate (7) has a through hole (11) for the fixing buckle (10) to pass through. The outer wall of the fixing buckle (10) is symmetrically connected with an elastic snap piece (13). The front end of the elastic snap piece (13) is provided with a barb (14). The outer walls on both sides of the fixed base (9) are symmetrically provided with snap grooves (15) for the barb (14) to be inserted.
2. The air outlet uniform bottom box according to claim 1, wherein, The flow stabilizer plate (7) is located between the fixing buckle (10) and the fixing seat (9), and the outer walls on both sides of the flow stabilizer plate (7) abut against the outer walls of the fixing buckle (10) and the fixing seat (9) respectively. The outer wall of the elastic snap-fit piece (13) fits against the inner wall of the through hole (11).
3. The air outlet uniform bottom box according to claim 1, characterized in that, The number of through holes (11) is three and they are evenly distributed along the length of the flow stabilizer (7). The number of the fixing seat (9), fixing buckle (10) and through holes (11) are the same and correspond one-to-one.
4. The air outlet uniform bottom box according to claim 1, characterized in that, The outer side of the bellows (1) is provided with heat insulation cotton (5), and the inner side of the bellows (1) is provided with sound insulation cotton (6).
5. The air outlet uniform bottom box according to claim 1, characterized in that, Connecting ears (4) are fixedly installed on both outer walls of the bellows (1).
6. The air outlet uniform bottom box according to claim 1, characterized in that, The air valve connector (3) is rotatably connected to a rotating shaft (16), and a butterfly plate (17) is provided on the rotating shaft (16). Mounting seats (18) are symmetrically installed on the outer walls of both sides of the air valve connector (3). Mounting buckles (19) are slidably inserted into the interior of the mounting seats (18). The air valve connector (3) is fixedly connected to the PE pipe through the mounting buckles (19).