Quick connecting structure of air pipe lower hanging pipe of air conditioner ventilation system

By adopting a quick connection structure in the air conditioning ventilation system, the rotating handle is used to achieve rapid fixed connection between the air duct and the lower hanging pipe, the problems of slow connection speed and high cost in the prior art are solved, and construction efficiency and connection sealing are improved.

CN222865069UActive Publication Date: 2025-05-13BEIJING GLAISHER AIR CONDITIONING EQUIP CO LTD
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Patent Information

Application Number
CN202421547965.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-02
Publication Date
2025-05-13
Estimated Expiration
2034-07-02

AI Technical Summary

Technical Problem

In the existing air conditioning ventilation system, the connection speed between the air duct and the lower hanging pipe is slow, resulting in low construction efficiency and high cost, especially when the construction period is tight, it is easy to cause problems such as station occupation and cost increase.

Method used

A quick connection structure for air conditioning and ventilation system air duct lower duct is adopted, including setting up a hanging pipe at the opening of the air duct and setting a rotating handle in the hanging pipe. The fast fixing connection between the air duct and the hanging pipe is achieved through the compression of the rotating handle, ensuring the sealing of the connection.

Benefits of technology

It realizes the rapid installation of air ducts and lower-mounted pipes, ensures the sealing of the connection, reduces costs and improves efficiency, and is suitable for quick connections when construction periods are tight.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222865069U_ABST
Patent Text Reader

Abstract

The utility model discloses a quick connecting structure for a lower hanging pipe of an air pipe of an air-conditioning ventilation system, which relates to the technical field of central air-conditioning systems and comprises a hanging pipe, the hanging pipe is arranged at an opening of the air pipe, a sealing structure is arranged at the joint of the hanging pipe and the air pipe, a rotating handle is arranged in the hanging pipe, and the hanging pipe is connected with the air pipe by rotating the rotating handle. And the rotating handle extends out of the outer side of the hanging pipe and is tightly pressed on the inner side of the opening of the air pipe. The device is simple in structure, simple and rapid to operate, capable of achieving rapid installation of the air pipe and the lower hanging pipe, capable of guaranteeing the sealing performance of the connecting position, capable of effectively reducing cost and improving efficiency and convenient to use practically.
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Description

Technical Field

[0001] The utility model relates to the technical field of central air-conditioning systems, in particular to a quick connection structure of a lower hanging pipe of an air duct of an air-conditioning ventilation system. Background Art

[0002] In the air conditioning and ventilation system, when the terminal air duct is connected to the air outlet, a hole corresponding to the supply and return (exhaust) air volume specification is generally opened at the lower end or side of the horizontal air duct, and then one end of the flexible connection short tube is flanged on all four sides, and nailed on the flange to connect with the outer steel plate of the air duct opening. After the connection, the air flow in the air duct and the flexible connection is connected to achieve the purpose of supplying air or inhaling indoor air. There is another situation, that is, the hole of the air duct is flanged, and the inner diameter of the flexible connection is not flanged and is covered on the outside of the flange of the air duct, and nailed to connect; this traditional installation method mainly has the following problems:

[0003] 1) The installation speed is slow and the labor cost is high;

[0004] 2) When the construction period is tight, due to slow construction, after the decoration professionals or other related professionals occupy the position, it will be difficult to make soft connections or track the air vents, resulting in increased costs.

[0005] Therefore, exploring an efficient, fast and quality-assured connection method can better meet market demand. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the utility model provides a quick connection structure for the lower hanging pipe of the air duct of an air conditioning and ventilation system, which can quickly realize the quick installation of the air duct and the lower hanging pipe, thereby achieving the purpose of facilitating practical use.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The quick connection structure of the hanging pipe under the air duct of the air conditioning ventilation system includes a hanging pipe, which is arranged at the opening of the air duct. A sealing structure is arranged at the connection between the hanging pipe and the air duct. A rotating handle is arranged inside the hanging pipe. When the rotating handle is rotated, the rotating handle extends out of the outside of the hanging pipe and is pressed tightly against the inside of the opening of the air duct.

[0009] Optionally, the rotating handle includes a C-shaped pressing portion, and the C-shaped pressing portion is used to contact the inner side of the air duct.

[0010] Optionally, a fixing plate is provided inside the hanging tube, and the rotating handle is rotatably provided on the fixing plate.

[0011] Optionally, the fixing plate is fixed to the inner side of the hanging tube by rivets.

[0012] Optionally, the hanging pipe is a short pipe, and the short pipe is a structure made of galvanized steel plate.

[0013] Optionally, the hanging pipe is a soft connection, and the soft connection is connected by a hose and a thin steel plate through a machine.

[0014] Optionally, a flange is provided at the end of the short tube or the flexible connection, and the sealing structure is located between the flange and the air duct.

[0015] Optionally, the sealing structure is a sealing strip.

[0016] Optionally, one end of the short tube facing away from the air duct is connected to a standard straight tube and / or a flexible connection.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model has a simple structure and is easy and quick to operate, can realize the rapid installation of the air duct and the lower hanging pipe, and ensures the sealing of the connection, effectively reduces the cost and improves the efficiency, and is convenient for practical use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of Example 1 of the utility model.

[0020] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the middle.

[0021] Figure 3 This is a schematic diagram of the structure of Example 2 of the utility model.

[0022] Figure 4 This is a schematic diagram of the structure of Example 3 of the utility model.

[0023] Reference numerals in the figures:

[0024] 1. Fixing plate; 2. Sealing strip; 3. Turning handle; 4. Short tube; 5. Rivet; 6. Flange; 7. Standard straight tube; 8. Flexible connection. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Embodiment 1:

[0027] like Figure 1 and Figure 2As shown, the utility model provides a quick connection structure for a hanging pipe under an air duct of an air conditioning and ventilation system, which includes a hanging pipe adapted to the opening of the air duct, wherein the hanging pipe is a short pipe 4, and the short pipe 4 is a square pipe or a round pipe structure. In this embodiment, the short pipe 4 is a square pipe. A sealing structure is installed between the short pipe 4 and the air duct to ensure the sealing between the short pipe 4 and the air duct to prevent air leakage. A plurality of rotating handles 3 are installed in the short pipe 4, and the rotating handles 3 are restricted in the short pipe 4 and cannot be moved, but can only be rotated at a certain angle. The rotating handles 3 can extend outside the short pipe 4, and are used for fixed connection between the short pipe 4 and the air duct, and the short pipe 4 is clamped on the air duct.

[0028] When the short tube 4 is installed, the rotating handle 3 does not extend out of the outside of the short tube 4, so that the short tube 4 is aligned with the opening of the air duct, and the flange end face of the short tube 4 is in close contact with the opening of the air duct. Afterwards, the rotating handle 3 located in the short tube 4 is rotated so that the upper end of the rotating handle 3 is screwed into the upper part of the lower steel plate of the air duct, that is, the rotating handle 3 extends out of the short tube 4 and is pressed against the inner side of the air duct, and the end of the short tube 4 is in contact with the air duct, thereby realizing rapid fixation of the short tube 4 on the air duct. The sealing structure is located at the connection between the short tube 4 and the air duct to ensure the sealing of the two.

[0029] In this embodiment, in order to achieve stability in the connection between the short tube 4 and the air duct, at least one rotating handle 3 is installed on each side of the short tube 4 .

[0030] In a possible embodiment, the rotating handle 3 includes a C-shaped pressing portion, and the C-shaped pressing portion is used to contact the inner side of the opening of the air duct. When the rotating handle 3 is rotated, the C-shaped pressing portion can enter the inner side of the opening of the air duct and contact it, and press the air duct tightly against the short tube 4.

[0031] In addition, the rotating handle 3 is made of cold-drawn round steel or spring steel. The rotating handle 3 made of cold-drawn round steel or spring steel is easy to undergo a certain elastic deformation, pressing the open end of the air duct tightly against the short tube 4 to prevent the lower hanging tube from shifting.

[0032] In order to realize the installation of the rotating handle 3 in the short tube 4, a fixing plate 1 is fixedly installed inside the short tube 4, and the rotating handle 3 is installed on the fixing plate 1. In this embodiment, the fixing plate 1 is fixed to the short tube 4 by rivets 5, and the fixing plate 1 is selected to be a galvanized steel plate.

[0033] In a possible embodiment, a flange 6 is provided at the connection end between the short tube 4 and the air duct, a sealing structure is located between the flange 6 and the air duct, and the sealing structure is a sealing strip 2, and the sealing strip 2 is a flame retardant B1 grade black rubber-plastic single-sided adhesive / fireproof 9501. In this embodiment, the flange 6 is a flange 6 of the short tube 4 or a common plate flange 6, and the short tube 4 is a galvanized air duct.

[0034] In addition, a flange 6 structure may also be provided at the other end of the short pipe 4 to facilitate the connection between the short pipe 4 and the pipeline structure.

[0035] With the continuous development of air conditioning, ventilation and smoke exhaust systems in the construction industry, competition is becoming increasingly fierce. Only by reducing costs, improving efficiency, and constantly breaking through and innovating existing technologies can enterprises remain invincible.

[0036] The utility model can be quickly installed on the air duct with simple and fast operation, low cost and high efficiency. Under the premise of ensuring the connection quality, the connection speed between the air duct and the upper end of the short pipe is greatly improved, and the interference of other types of work in the rush stage is reduced.

[0037] Embodiment 2:

[0038] like Figure 3 As shown, the difference between this embodiment and embodiment 1 is that the hanging pipe is a soft connection 8, and the soft connection 8 is a machine-made soft connection. The soft connection 8 includes a hose and a thin steel plate. The thin steel plate forms a closed rectangle or circle. The two ends of the hose are engaged with the thin steel plate by a machine to form a sealing structure. One end of the soft connection 8 is connected to the air outlet, and the other end of the soft connection 4 is adapted to the opening of the air duct.

[0039] In this embodiment, the hose is made of gray polyurethane coated glass fiber cloth or other soft connection materials, and the soft connection 4 is a square tube or a round tube as a whole.

[0040] Now, the flexible connection 8 is taken as a square tube as an example for explanation. A sealing structure is installed between a thin steel plate on the flexible connection 8 and the air duct to ensure the sealing between the flexible connection 8 and the air duct and prevent air leakage. A plurality of rotating handles 3 are installed in the above-mentioned thin steel plate. The rotating handles 3 can extend outward from the thin steel plate and are used for fixed connection between the flexible connection 8 and the air duct, and the flexible connection 8 is clamped on the air duct.

[0041] When installing the flexible connection 8, first match the thin steel plate with the rotating handle 3 with the opening of the air duct, and make the end face of the thin steel plate close to the opening of the air duct. Then, rotate the rotating handle 3 located in the thin steel plate, and the rotating handle 3 extends out of the thin steel plate. One end of the rotating handle 3 is pressed against the inner side of the opening of the air duct, and the end of the thin steel plate is in contact with the air duct, so as to realize the rapid fixation of the flexible connection 8 on the air duct. The sealing structure is located at the connection between the flexible connection 8 and the air duct to ensure the sealing of the two.

[0042] In this embodiment, in order to achieve stability in the connection between the thin steel plate and the air duct, at least one rotating handle 3 is installed on each side of the thin steel plate.

[0043] In a possible embodiment, the rotating handle 3 includes a C-shaped pressing portion, and the C-shaped pressing portion is used to contact the inner side of the opening of the air duct. When the rotating handle 3 is rotated, the C-shaped pressing portion can enter the inner side of the opening of the air duct and contact it, and tightly press the opening of the air duct against the thin steel plate.

[0044] In addition, the rotating handle 3 is made of cold-drawn round steel or spring steel. The rotating handle 3 made of cold-drawn round steel or spring steel is easy to undergo a certain elastic deformation, so that the open end of the air duct is tightly pressed against the thin steel plate.

[0045] In order to realize the installation of the rotating handle 3 in the thin steel plate, a fixing plate 1 is fixedly installed inside the thin steel plate, and the rotating handle 3 is installed on the fixing plate 1. In this embodiment, the fixing plate 1 is fixed to the thin steel plate by rivets 5, and the fixing plate 1 is selected to be a galvanized steel plate.

[0046] In a possible embodiment, the connection end between the thin steel plate and the air duct is provided with a flanged flange 6, a sealing structure is located between the flanged flange 6 and the air duct, and the sealing structure is a sealing strip 2, and the sealing strip 2 is a flame retardant B1 grade black rubber-plastic single-sided adhesive / fireproof 9501. In this embodiment, the thin steel plate is a galvanized steel plate.

[0047] In addition, there is no requirement for the specific structure of the thin steel plate at the other end of the flexible connection 4, which may have a flange structure to facilitate its connection with the pipeline structure. Under the premise of ensuring the connection quality, the connection speed between the air duct and the upper end of the flexible connection is greatly improved, reducing the interference of other types of work during the rush stage.

[0048] Embodiment 3:

[0049] like Figure 4 As shown, the difference between this embodiment and embodiment 1 is that it also includes a standard straight pipe 7 and a flexible connection 8. The flexible connection 8 adopts the structure of embodiment 2, which will not be elaborated in detail here.

[0050] The standard straight pipe 7 is a structure made of galvanized steel plate, and both ends of the standard straight pipe 7 have flange structures, and the standard straight pipe 7 is connected to the short pipe 4. One end of the flexible connection 8 has a flange structure, and the flexible connection 8 is connected to the standard straight pipe 7.

[0051] In addition, in other possible embodiments, the standard straight pipe 7 and the flexible connection 8 can be directly connected to the short pipe 4 .

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. The quick connection structure of the air duct under the air conditioning and ventilation system is characterized by: The invention comprises a hanging pipe, wherein the hanging pipe is arranged at the opening of the air duct, a sealing structure is arranged at the connection between the hanging pipe and the air duct, a rotating handle (3) is arranged inside the hanging pipe, and when the rotating handle (3) is rotated, the rotating handle (3) extends out of the outside of the hanging pipe, and the rotating handle (3) is pressed tightly against the inside of the opening of the air duct.

2. The quick connection structure of the air duct under-hanging pipe of the air conditioning and ventilation system according to claim 1 is characterized in that: The rotating handle (3) comprises a C-shaped pressing portion, and the C-shaped pressing portion is used to contact the inner side of the air duct.

3. The quick connection structure of the air duct under-hanging pipe of the air conditioning and ventilation system according to claim 1 or 2, characterized in that: A fixing plate (1) is arranged inside the hanging tube, and the rotating handle (3) is rotatably arranged on the fixing plate (1).

4. The quick connection structure of the air duct under-hanging pipe of the air conditioning and ventilation system according to claim 3 is characterized in that: The fixing plate (1) is fixed to the inner side of the hanging pipe by means of rivets (5).

5. The quick connection structure of the air duct under-hanging pipe of the air conditioning and ventilation system according to claim 1, characterized in that: The hanging pipe is a short pipe (4), and the short pipe (4) is a structure made of galvanized steel plate.

6. The quick connection structure for the air duct under-hanging pipe of the air conditioning and ventilation system according to claim 1, characterized in that: The hanging pipe is a soft connection (8), and the soft connection (8) is connected to the thin steel plate by a hose through a machine.

7. The quick connection structure for the air duct under-hanging pipe of the air conditioning and ventilation system according to claim 5, characterized in that: A flange (6) is provided at the end of the short tube (4), and the sealing structure is located between the flange (6) and the air duct.

8. The quick connection structure for the air duct under-hanging pipe of the air conditioning and ventilation system according to claim 6, characterized in that: A flange (6) is provided at the end of the flexible connection (8), and the sealing structure is located between the flange (6) and the air duct.

9. The quick connection structure of the air duct under-hanging pipe of the air conditioning and ventilation system according to claim 7 or 8, characterized in that: The sealing structure is a sealing rubber strip (2).

10. The quick connection structure for the air duct under-hanging pipe of the air conditioning and ventilation system according to claim 5, characterized in that: One end of the short tube (4) facing away from the air duct is connected to a standard straight tube (7) and / or a flexible connection (8).