Connecting piece for air supply branch pipe and air supply branch pipe assembly comprising connecting piece

Abstract

The utility model provides a connecting piece for an air supply branch pipe and an air supply branch pipe assembly comprising the same. The connecting piece for the air supply branch pipe comprises a cylindrical main body, and openings in the two axial ends of the main body are used for communicating with the air supply branch pipe; the resistance adjusting plate is arranged in an inner cavity of the main body, the peripheral side of the resistance adjusting plate is in butt joint with the inner wall of the main body, adjusting holes are formed in the resistance adjusting plate, and the connecting piece for the air supply branch pipes is arranged between the air supply branch pipes used for connection and used for adjusting the air passing resistance. The air volume is adjusted; and the air noise is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of ventilation equipment technology, specifically relating to a connector for an air supply branch pipe and an air supply branch pipe assembly containing the connector. Background Technology

[0002] Ventilation equipment and air conditioning are essential in shopping malls, subways, buildings and residences. They not only improve people's comfort, but also serve as an important guarantee for meeting basic living needs and economic activities.

[0003] The "Five Constant Systems" technology living space employs a combination of displacement ventilation and radiant terminal air conditioning to ensure a relatively constant indoor environment. The displacement ventilation system guarantees the volume, humidity, and cleanliness of fresh air while maintaining positive pressure. Within the fresh air supply system, ducts connect to distribution boxes, which in turn deliver air from the ducts. Each distribution box is connected to an air supply duct assembly, with at least one duct in each room. Air from the distribution box is then delivered to each room via the air supply duct assemblies.

[0004] A common problem with this type of air supply is that the lengths of the air supply branch pipes in the air supply branch pipe assembly are different, resulting in different resistances in each branch, which in turn leads to different air volumes and an imbalance in the air volume output from each air supply box. If the air supply box is very close to the distribution box, the air supply branch pipe is too short compared to the air supply branch pipes of other branches, resulting in too low resistance, a large air volume, and a large amount of wind noise.

[0005] Currently, the above problems can be solved by increasing the length of the air supply branch pipe, thus extending the loop. However, this method wastes material in the air supply branch pipe, and the extra loop distance is often limited by site conditions, frequently failing to meet the required additional length. Alternatively, an airflow regulating valve can be installed at the air supply box. The airflow of the branch can be controlled by adjusting the opening of the valve. However, for branches with excessive airflow, reducing the airflow by too small an opening of the regulating valve will produce a whistling noise; furthermore, the opening of this type of regulating valve is difficult to fix, is prone to movement, and is difficult to restore to its original position after changes.

[0006] Therefore, it is necessary to design a connector for the air supply branch pipe and an air supply branch pipe assembly containing it to avoid the problem of large air volume and high wind noise caused by the air supply branch pipe being too short. Utility Model Content

[0007] To address some or all of the aforementioned technical problems in the prior art, this utility model proposes a connector and an air supply branch pipe assembly. The connector is disposed between connected air supply branch pipes to adjust the resistance to airflow, thereby regulating airflow and reducing wind noise.

[0008] According to one aspect of the present invention, a connector for an air supply branch pipe is provided, comprising:

[0009] The main body is cylindrical, with openings at both axial ends for connecting to air supply branch pipes.

[0010] A resistance adjustment plate is disposed in the inner cavity of the main body, the outer peripheral side of the resistance adjustment plate is connected to the inner wall of the main body, and an adjustment hole is provided on the resistance adjustment plate.

[0011] In one embodiment, there are multiple adjustment holes, which are evenly distributed on the resistance adjustment plate.

[0012] In one embodiment, the number of adjustment holes is at least four.

[0013] In one embodiment, the adjustment hole is configured as a circular hole.

[0014] In one embodiment, the main body has connecting sections at both axial ends, and at least one sealing ring is provided on the inner wall of each connecting section.

[0015] In one embodiment, multiple sealing rings are provided on the inner wall of each of the connecting segments.

[0016] In one embodiment, snap-fit ​​members are provided on the inner wall of the body, and the snap-fit ​​members are axially spaced apart in the body to form snap-fit ​​grooves that define the resistance adjustment plate.

[0017] In one embodiment, the snap-fit ​​element is configured as a wedge-shaped protrusion.

[0018] According to another aspect of the present invention, an air supply branch pipe assembly is provided, comprising:

[0019] air supply branch pipe,

[0020] The aforementioned connectors for air supply branch pipes,

[0021] The connector for the air supply branch pipe is disposed between two adjacent air supply branch pipes, and each air supply branch pipe is connected to the connector for the air supply branch pipe in a continuous manner.

[0022] In one embodiment, each of the air supply branch pipes is inserted into the inner cavity of the main body, and / or the connector for the air supply branch pipe is located at the middle position along the length of the air supply branch pipe.

[0023] Compared with the prior art, the advantages of this utility model are as follows: the connector for the air supply branch pipe includes a resistance adjustment plate with an adjustment hole. During the use of the connector for the air supply branch pipe, it is set on the air supply branch so that the air is blown through the resistance adjustment plate. The resistance of the air supply branch pipe can be adjusted through the adjustment hole, which helps to maintain the balance of different air supply volumes in the fresh air system. Attached Figure Description

[0024] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, in which:

[0025] Figure 1 A perspective view of a connector for an air supply branch pipe according to an embodiment of the present invention is shown;

[0026] Figure 2 For from Figure 1 AA cross-section view;

[0027] Figure 3 An exploded view of an air supply branch pipe assembly according to an embodiment of the present invention is shown;

[0028] Figure 4 An assembly diagram of an air supply branch pipe assembly according to an embodiment of the present invention is shown.

[0029] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0030] To make the technical solution and advantages of this utility model clearer, the exemplary embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not an exhaustive list of all embodiments. Furthermore, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0031] An embodiment of this utility model provides a connector for an air supply branch pipe. For example... Figures 1 to 4 As shown, the connector 10 for the air supply branch pipe includes a main body 11 and a resistance adjusting plate 12. The main body 11 is cylindrical and is used to connect to the air supply branch pipe 50 as part of the air duct. The resistance adjusting plate 12 itself is a plate-shaped component. Adjustment holes 13 are provided on the resistance adjusting plate 12. After installation, the resistance adjusting plate 12 is located within the inner cavity of the main body 11, and the outer periphery of the resistance adjusting plate 12 abuts against the inner wall of the main body 11, dividing the axial space of the main body 11 so that air passing through the main body 11 must pass through the adjustment holes 13 on the resistance adjusting plate 12 to be blown downstream.

[0032] As can be seen, by providing a connector 10 for the air supply branch pipe 50, the air must pass through the adjustment hole 13 on the resistance adjustment plate 12 when it is transported within the air supply branch pipe 50. This adjustment hole 13 is used to change or adjust the flow area of ​​the air supply branch pipe 50, thereby adjusting the air supply resistance. Therefore, even if the length of the air supply branch pipe 50 is relatively short, the air supply volume can be adjusted by changing the resistance through the connector 10, thus maintaining air volume balance between this air supply branch pipe and other air supply branch pipes.

[0033] According to this application, there are multiple regulating holes 13, evenly distributed on the resistance regulating plate 12. This arrangement effectively ensures the uniformity of airflow within the main body 11, thereby ensuring stable air delivery. Preferably, the number of regulating holes 13 is at least four. The specific number of regulating holes 13 can be adjusted according to the cross-sectional size of the inner cavity of the main body 11, processing costs, preset resistance levels, etc. For example, the number of regulating holes 13 is eight. This arrangement further ensures the uniform distribution of airflow within the main body 11.

[0034] The adjustment hole 13 can be one or more of the following: square hole, round hole, elliptical hole, triangular hole, or polygonal hole. Preferably, the adjustment hole 13 is constructed as a round hole, which can reduce processing costs and simplify the processing process.

[0035] Both ends of the main body 11 are provided with connecting sections 14. These connecting sections 14 are used to connect with the ventilation branch pipe 50. At least one sealing ring 15 is provided on the inner wall of each connecting section 14. For example, the sealing ring 15 is a silicone sealing ring. Preferably, multiple sealing rings 15 are provided on the inner wall of each connecting section 14, and these multiple sealing rings 15 are connected as a whole for easy installation and processing. During the connection process between the connector 10 for the air supply branch pipe and the air supply branch pipe 50, the air supply branch pipe 50 can be inserted into the inner cavity of the connecting section 14. The sealing ring 15 at this location not only seals the air supply branch pipe 50 and the main body 11 but also increases the friction at the insertion point, ensuring the connection stability between the air supply branch pipe 50 and the main body 11.

[0036] A snap-fit ​​element 16 is provided on the inner wall of the main body 11. The snap-fit ​​elements 16 are spaced apart axially along the main body 11 to form snap-fit ​​grooves 17 for defining the resistance adjustment plate 12. Specifically, the snap-fit ​​elements 16 are constructed as wedge-shaped protrusions. That is, in the axial section, the cross-section of the snap-fit ​​element 16 is triangular, meaning the thickness of the snap-fit ​​element 16 on the main body 11 is not uniform; the outer end (the end away from the axial center of the main body 11) is thinner than the inner end (the end closer to the axial center of the main body 11). During the installation of the resistance adjustment plate 12, the inclined surface of the snap-fit ​​element 16 guides the resistance adjustment plate 12 deeper until it is installed in place and snapped between the snap-fit ​​grooves 17 formed by the two snap-fit ​​elements 16. This arrangement helps to define the position of the resistance adjustment plate 12 and facilitates its installation.

[0037] This application also relates to an air supply branch pipe assembly. The air supply branch pipe assembly includes an air supply branch pipe 50 and the aforementioned connector 10 for the air supply branch pipe. The connector 10 for the air supply branch pipe is disposed between two adjacent air supply branch pipes 50. Each air supply branch pipe 50 is connected in a communicative manner to the connector 10 for the air supply branch pipe.

[0038] Specifically, each air supply branch pipe 50 is inserted into the inner cavity of the main body 11. The sealing ring 15 seals the air supply branch pipe 50 to the main body 11, and the sealing ring 15 exerts a relatively large clamping force on the air supply branch pipe 50, ensuring its stable placement within the main body 11. Along the entire length of the air supply branch pipe 50, the connector 10 is positioned approximately in the middle. This arrangement ensures that the connector 10 is neither too close to the air distribution box nor the air supply box, effectively preventing noise feedback.

[0039] In practical applications, it is easy to understand that one or more connectors 10 can be installed along the entire length of the air supply branch pipe 50. By changing the size and opening density of the adjusting holes 13 of the connectors 10 used for the air supply branch pipe, the resistance value can be effectively adjusted to meet the usage requirements. It is easy to understand that the smaller the flow area of ​​the adjusting holes 13, the greater the resistance value.

[0040] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and / or modifications falling within the scope of the present invention, and all changes and / or modifications made according to the embodiments of the present invention should be covered within the protection scope of the present invention.

Claims

1. A connector for an air supply branch pipe, characterized in that, include: The main body is cylindrical, with openings at both axial ends for connecting to air supply branch pipes. A resistance adjustment plate is disposed in the inner cavity of the main body, the outer peripheral side of the resistance adjustment plate is connected to the inner wall of the main body, and an adjustment hole is provided on the resistance adjustment plate.

2. The connector for the air supply branch pipe according to claim 1, characterized in that, The adjustment holes are multiple and are evenly distributed on the resistance adjustment plate.

3. The connector for the air supply branch pipe according to claim 2, characterized in that, The minimum number of adjustment holes is four.

4. The connector for the air supply branch pipe according to claim 2, characterized in that, The adjustment hole is constructed as a circular hole.

5. The connector for an air supply branch pipe according to any one of claims 1 to 4, characterized in that, The main body has connecting sections at both axial ends, and at least one sealing ring is provided on the inner wall of each connecting section.

6. The connector for an air supply branch pipe according to claim 5, characterized in that, Multiple sealing rings are provided on the inner wall of each of the connecting sections.

7. The connector for an air supply branch pipe according to claim 5, characterized in that, A snap-fit ​​element is provided on the inner wall of the main body, and the snap-fit ​​element is axially spaced along the main body to form snap-fit ​​grooves that define the resistance adjustment plate.

8. The connector for a branch air supply pipe according to claim 7, characterized in that, The snap-fit ​​component is constructed as a wedge-shaped protrusion.

9. An air supply branch pipe assembly, characterized in that, include: air supply branch pipe, The connector for the air supply branch pipe according to any one of claims 1 to 8, The connector for the air supply branch pipe is disposed between two adjacent air supply branch pipes, and each air supply branch pipe is connected to the connector for the air supply branch pipe in a continuous manner.

10. The air supply branch pipe assembly according to claim 9, characterized in that, Each of the aforementioned air supply branch pipes is inserted into the inner cavity of the main body, and / or the connector for the air supply branch pipe is located at the middle position along the length of the air supply branch pipe.

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