Air conditioner pipeline structure capable of being quickly installed in butt joint mode

The design of the positioning and docking mechanisms solves the problems of complex air conditioning pipe connections and sealing, enabling rapid installation and efficient disassembly, and improving the operational stability and sealing of the air conditioning system.

CN224214904UActive Publication Date: 2026-05-08SHENZHEN ZHONGJING ENVIRONMENTAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN ZHONGJING ENVIRONMENTAL TECH CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing air conditioning duct connection methods require specialized equipment and personnel. Welding is prone to deformation, flange connections are cumbersome and reduce sealing performance, and threaded connections require high precision and are prone to loosening after repeated disassembly and assembly, resulting in complex installation and reduced sealing.

Method used

The system employs positioning and docking mechanisms, utilizing components such as limit blocks, limit posts, sealing gaskets, and sealing rings to achieve rapid docking, ensuring coaxiality and sealing performance, reducing the risk of refrigerant leakage, and improving system stability.

Benefits of technology

It enables rapid installation and disassembly of air conditioning ducts, improves installation efficiency, enhances system operational stability and reliability, and prevents refrigerant leakage and the entry of dust and impurities.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air conditioner pipeline structure capable of being rapidly installed in a butt joint mode, and relates to the technical field of air conditioner pipelines. The device comprises a connecting pipe, the top of the connecting pipe is communicated with an inner pipe, the bottom of the surface of the inner pipe is fixedly connected with a positioning mechanism, and the top of the positioning mechanism is provided with a butt joint mechanism. Through the positioning mechanism and the butt joint mechanism, quick butt joint installation of air conditioner pipelines is achieved, a limiting block and a limiting column in the positioning mechanism are used in cooperation with a limiting groove and a limiting hole in the butt joint mechanism, the butt joint position of the pipelines can be accurately guided, and the pipelines can be quickly installed only by aligning a positioning base at the bottom of a butt joint pipe with a connecting sleeve at the top of an inner pipe. The pressing block is pressed down to enable the limiting column to contract, then the positioning seat is inserted into the connecting sleeve, and after the pressing block is loosened, the limiting column pops up under the action of the first spring and is clamped into the limiting hole, so that preliminary positioning of the pipeline can be completed, the pipeline installation time is greatly shortened, and the construction efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of air conditioning duct technology, and in particular relates to an air conditioning duct structure that allows for quick connection and installation. Background Technology

[0002] In modern buildings, air conditioning systems have become an indispensable part. Their installation quality and efficiency directly affect the user experience and energy consumption of the entire building. As an important component of the air conditioning system, air conditioning ducts undertake the key task of transporting media such as refrigerant and condensate. Traditional air conditioning duct connection structures mainly adopt welding, flange connection, threaded connection and other methods.

[0003] While welding provides high connection strength for existing pipe connections, it requires specialized welding equipment and skilled technicians. Furthermore, the high temperatures generated during welding can easily deform the pipes, affecting the normal operation of the air conditioning system. Flange connections rely on numerous bolts and nuts for fastening, making installation and disassembly cumbersome and costly in terms of manpower and time. Additionally, aging gaskets can lead to refrigerant leaks. Threaded connections require extremely high precision in pipe machining, and repeated disassembly and reassembly can cause thread wear, resulting in loose connections and reduced pipe sealing.

[0004] To address these issues, we provide a quick-connect and installable air conditioning duct structure. Utility Model Content

[0005] The purpose of this utility model is to provide an air conditioning pipe structure that can be quickly installed. By cooperating with the positioning mechanism and the docking mechanism, it solves the problems of existing technologies, such as welding methods requiring professional equipment and personnel, easy pipe deformation, flange connections relying on a large number of bolts and nuts, complicated installation and disassembly, and threaded connections requiring high processing precision, resulting in thread wear and reduced sealing performance after repeated disassembly and assembly.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a quick-connect and installable air conditioning duct structure, including a connecting pipe. The top of the connecting pipe is connected to an inner pipe. A positioning mechanism is fixedly connected to the bottom surface of the inner pipe. A docking mechanism is provided on the top of the positioning mechanism. The positioning mechanism includes a connecting sleeve, which is fitted onto the surface of the inner pipe. Limiting blocks are fixedly connected to both sides of the connecting sleeve. A first spring is fixedly connected to the bottom of one side of the inner cavity of the limiting block. A movable plate is fixedly connected to one side of the first spring. A limiting post is fixedly connected to the top of one side of the movable plate. One side of the limiting post penetrates the inner cavity of the limiting block and extends to the outside of the limiting block. A pressing block is fixedly connected to the bottom of one side of the movable plate. One side of the pressing block extends to the outside of the limiting block. The connecting sleeve... Tightly fitted onto the surface of the inner tube, forming a stable fit, the push-button at the bottom of the movable plate has an anti-slip surface for easy pressing by operators. It is also connected to the movable plate via an embedded structure, ensuring a secure fit and preventing detachment. During air conditioning pipe installation, simply align the inner tube with the connecting pipe; the limiting post automatically engages with the positioning hole under the action of the first spring, achieving rapid positioning without complex measurement and calibration steps, significantly shortening installation time. When disassembly is required, pressing the push-button compresses the first spring on the movable plate, causing the limiting post to retract into the limiting block, easily separating the pipe components. The operation is simple. Furthermore, the precise fit of the positioning mechanism ensures coaxiality between the connecting pipe and the docking component, reducing the risk of refrigerant leakage and improving the stability and reliability of the air conditioning system.

[0008] The present invention is further configured such that the docking mechanism includes a connecting pipe, which is disposed above the inner pipe. A positioning seat is fixedly connected to the bottom of the connecting pipe, and a second spring is fixedly connected to both sides of the top of the positioning seat. A sealing gasket is fixedly connected to the bottom of the second spring. The connecting pipe is disposed above the inner pipe, and the second spring cooperates with the sealing gasket at the bottom. When the pipes are docked, the second spring can buffer the impact force generated during docking, preventing damage to the components due to rigid collision. Under the pressure of the second spring, the sealing gasket can tightly fit the interface between the inner pipe and the connecting pipe to form a sealing structure, effectively preventing refrigerant leakage, ensuring the air conditioning cooling and heating effect, and improving the reliability and stability of the system operation.

[0009] The present invention is further configured such that both sides of the bottom of the positioning seat are provided with limiting grooves for use with limiting blocks, and a limiting hole is provided on one side of the inner cavity of the limiting groove. The limiting groove cooperates with the limiting block, and the limiting hole is adapted to the limiting post. During the pipe docking process, the limiting block can be accurately embedded in the limiting groove to achieve initial positioning and guidance. When the limiting post is inserted into the limiting hole, the stability of the connection is further enhanced, preventing the pipe from shifting in the horizontal and vertical directions.

[0010] The present invention is further configured such that a sealing ring is fixedly connected to the top of the connecting sleeve, and the sealing ring is fitted onto the surface of the inner tube. The sealing ring is tightly fitted onto the surface of the inner tube. When the pipes are connected, the sealing ring can fill the tiny gaps at the connection point, which can not only effectively prevent refrigerant leakage, but also prevent external dust, water vapor and other impurities from entering the pipe.

[0011] The present invention is further configured such that a limiting sleeve is fixedly connected to the top of the connecting pipe, the top of the limiting sleeve is connected to the inner pipe, and the limiting sleeve is connected to the inner pipe, which provides a guiding function for the installation of the inner pipe, so that the inner pipe can be quickly aligned with the connecting pipe, reducing the installation difficulty and improving the installation efficiency.

[0012] The present invention is further configured such that the outer diameter of the inner tube is adapted to the inner diameter of the connecting pipe, one side of the inner tube extends into the inner cavity of the connecting pipe, the outer diameter of the inner tube is adapted to the inner diameter of the connecting pipe, the inner tube can be smoothly inserted into the inner cavity of the connecting pipe, and the two closely cooperate to form a continuous flow channel, effectively reducing the flow resistance of refrigerant at the pipe interface and ensuring smooth flow of refrigerant.

[0013] The present invention is further configured such that the limiting holes are symmetrically arranged, the limiting holes are adapted to the limiting posts, and the limiting holes and limiting posts cooperate to ensure that the pipe is subjected to uniform force on both sides after docking, thereby avoiding pipe twisting or deformation or local stress concentration due to uneven force.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model achieves rapid docking and installation of air conditioning pipes through a positioning mechanism and a docking mechanism. The limiting block and limiting column in the positioning mechanism work together with the limiting groove and limiting hole in the docking mechanism to accurately guide the docking position of the pipes. Simply align the positioning seat at the bottom of the docking pipe with the connecting sleeve at the top of the inner pipe, press the button to retract the limiting column, then insert the positioning seat into the connecting sleeve, and after releasing the button, the limiting column pops out under the action of the first spring and locks into the limiting hole, thus completing the initial positioning of the pipes. This greatly shortens the pipe installation time and improves construction efficiency.

[0016] 2. This utility model forms a double sealing structure by using the sealing ring at the top of the connecting sleeve and the sealing gasket in the inner cavity of the positioning seat, which effectively prevents media leakage. After the connecting pipe and the inner pipe are connected, the sealing ring fits tightly against the bottom of the positioning seat, and the sealing gasket is in close contact with the top of the inner pipe under the pressure of the inner pipe. The double sealing ensures the sealing performance of the pipe connection and improves the operational stability and reliability of the air conditioning system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a 3D diagram of an air conditioning duct structure that allows for quick docking and installation.

[0019] Figure 2 This is a perspective view of the butt joint and its connection structure in an air conditioning duct structure that allows for quick docking and installation.

[0020] Figure 3 This is a three-dimensional view of the connecting pipes and their connection structure in an air conditioning duct structure that allows for quick docking and installation.

[0021] Figure 4 This is a bottom-view perspective view of the positioning seat in an air conditioning duct structure designed for quick docking and installation.

[0022] Figure 5 This is a perspective view of the positioning seat and its connecting mechanism in an air conditioning duct structure that allows for quick docking and installation.

[0023] Figure 6 This is a cross-sectional view of a limiting block in an air conditioning duct structure that allows for quick docking and installation.

[0024] In the attached diagram: 1. Connecting pipe; 2. Inner pipe; 3. Positioning mechanism; 31. Connecting sleeve; 32. Limiting block; 33. First spring; 34. Movable plate; 35. Limiting post; 36. Press block; 4. Docking mechanism; 41. Docking pipe; 42. Positioning seat; 43. Second spring; 44. Sealing gasket; 5. Limiting groove; 6. Limiting hole; 7. Sealing ring; 8. Limiting sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-6 This utility model is a quick-connect and installable air conditioning pipe structure, including a connecting pipe 1, the top of which is connected to an inner pipe 2, a positioning mechanism 3 is fixedly connected to the bottom of the surface of the inner pipe 2, and a docking mechanism 4 is provided on the top of the positioning mechanism 3. The positioning mechanism 3 includes a connecting sleeve 31, which is sleeved on the surface of the inner pipe 2. Limiting blocks 32 are fixedly connected to both sides of the connecting sleeve 31. A first spring 33 is fixedly connected to the bottom of one side of the inner cavity of the limiting block 32. A movable plate 34 is fixedly connected to one side of the first spring 33. A limiting post 35 is fixedly connected to the top of one side of the movable plate 34. One side of the limiting post 35 penetrates the inner cavity of the limiting block 32 and extends to the outside of the limiting block 32. A pressing block 36 is fixedly connected to the bottom of one side of the movable plate 34. One side of the pressing block 36 penetrates to the outside of the limiting block 32.

[0028] Specifically: the connecting sleeve 31 fits tightly onto the surface of the inner tube 2, forming a stable fit with the inner tube 2. The push block 36 at the bottom of the movable plate 34 has an anti-slip surface, making it easy for operators to press. It is also connected to the movable plate 34 through an embedded structure, making it stable and not easy to fall off. When installing the air conditioning pipe, simply align the inner tube 2 with the docking pipe 41. The limiting post 35 automatically snaps into the positioning hole under the action of the first spring 33, achieving rapid positioning without complicated measurement and calibration steps, greatly shortening the installation time. When disassembly is required, pressing the push block 36 drives the movable plate 34 to compress the first spring 33, causing the limiting post 35 to retract into the limiting block 32, making it easy to separate the pipe components. The operation is simple. In addition, the precise fit of the positioning mechanism 3 can ensure the coaxiality between the connecting pipe 1 and the docking component, reduce the risk of refrigerant leakage, and improve the stability and reliability of the air conditioning system.

[0029] Example 2

[0030] Please see Figure 1-6 Based on Embodiment 1, the docking mechanism 4 includes a docking tube 41, which is located above the inner tube 2. A positioning seat 42 is fixedly connected to the bottom of the docking tube 41. A second spring 43 is fixedly connected to both sides of the top of the inner cavity of the positioning seat 42. A sealing gasket 44 is fixedly connected to the bottom of the second spring 43. A limiting groove 5 that cooperates with the limiting block 32 is opened on both sides of the bottom of the positioning seat 42. A limiting hole 6 is opened on one side of the inner cavity of the limiting groove 5. A sealing ring 7 is fixedly connected to the top of the connecting sleeve 31. The sealing ring 7 is sleeved on the surface of the inner tube 2. A limiting sleeve 8 is fixedly connected to the top of the connecting tube 1. The top of the limiting sleeve 8 communicates with the inner tube 2. The outer diameter of the inner tube 2 is adapted to the inner diameter of the docking tube 41. One side of the inner tube 2 extends into the inner cavity of the docking tube 41. The limiting holes 6 are symmetrically arranged and are adapted to the limiting post 35.

[0031] Specifically: The connecting pipe 41 is positioned above the inner pipe 2. The second spring 43 cooperates with the bottom sealing gasket 44. During pipe connection, the second spring 43 can buffer the impact force generated during connection, preventing damage to components due to rigid collision. Under the pressure of the second spring 43, the sealing gasket 44 can tightly fit the interface between the inner pipe 2 and the connecting pipe 41, forming a sealing structure, effectively preventing refrigerant leakage, ensuring the air conditioning cooling and heating effect, and improving the reliability and stability of system operation. The limiting groove 5 cooperates with the limiting block 32, and the limiting hole 6 matches the limiting post 35. During pipe connection, the limiting block 32 can accurately embed into the limiting groove 5 to achieve initial positioning and guidance. When the limiting post 35 is inserted into the limiting hole 6, it further enhances the stability of the connection, preventing pipe displacement in the horizontal and vertical directions. The sealing ring 7 is tightly fitted onto the surface of the inner tube 2. When the pipes are connected, the sealing ring 7 can fill the tiny gaps at the connection point, which can not only effectively prevent refrigerant leakage, but also prevent external dust, water vapor and other impurities from entering the pipe. The limiting sleeve 8 is connected to the inner tube 2, providing a guide for the installation of the inner tube 2, so that the inner tube 2 can be quickly aligned with the connecting pipe 1, reducing the installation difficulty and improving the installation efficiency. The outer diameter of the inner tube 2 is compatible with the inner diameter of the connecting pipe 41, so the inner tube 2 can be smoothly inserted into the inner cavity of the connecting pipe 41. The two fit together to form a continuous flow channel, effectively reducing the flow resistance of the refrigerant at the pipe interface and ensuring smooth refrigerant flow. The limiting hole 6 cooperates with the limiting post 35 to make the pipe evenly stressed on both sides after connection, avoiding pipe twisting or deformation or local stress concentration caused by uneven stress.

[0032] The working principle of this utility model is as follows: During the installation stage, the inner tube 2 is aligned with the connecting tube 41. When the limiting block 32 is embedded in the limiting groove 5, the limiting post 35 will automatically engage with the limiting hole 6 to complete the initial positioning. No complex calibration is required, which greatly shortens the installation time. Since the outer diameter of the inner tube 2 is compatible with the inner diameter of the connecting tube 41, the two fit together to form a continuous flow channel. The second spring 43 plays a buffering role during the docking process to avoid damage from rigid collisions of the components. When the inner tube 2 is inserted into place, the second spring 43 presses down on the sealing gasket 44 to make it fit tightly against the interface between the inner tube 2 and the connecting tube 41 to form a sealing structure and prevent refrigerant leakage.

[0033] When disassembly is required, the operator presses the button 36, which drives the movable plate 34 to compress the first spring 33, causing the limiting post 35 to retract into the limiting block 32. The limiting post 35 separates from the limiting hole 6, and the inner tube 2 can be easily pulled out from the connecting pipe 41, realizing the separation of the pipe components. The operation is simple and quick.

[0034] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A quick-connect and installable air conditioning duct structure, comprising a connecting pipe (1), characterized in that: The top of the connecting pipe (1) is connected to the inner pipe (2), and the bottom of the surface of the inner pipe (2) is fixedly connected to the positioning mechanism (3), and the top of the positioning mechanism (3) is provided with a docking mechanism (4). The positioning mechanism (3) includes a connecting sleeve (31), which is fitted onto the surface of the inner tube (2). Limiting blocks (32) are fixedly connected to both sides of the connecting sleeve (31). A first spring (33) is fixedly connected to the bottom of one side of the inner cavity of the limiting block (32). A movable plate (34) is fixedly connected to one side of the first spring (33). A limiting post (35) is fixedly connected to the top of one side of the movable plate (34). One side of the limiting post (35) penetrates the inner cavity of the limiting block (32) and extends to the outside of the limiting block (32). A pressing block (36) is fixedly connected to the bottom of one side of the movable plate (34). One side of the pressing block (36) penetrates to the outside of the limiting block (32).

2. The air conditioning duct structure for quick connection and installation according to claim 1, characterized in that: The docking mechanism (4) includes a docking tube (41), which is located above the inner tube (2). A positioning seat (42) is fixedly connected to the bottom of the docking tube (41). A second spring (43) is fixedly connected to both sides of the top of the inner cavity of the positioning seat (42). A sealing gasket (44) is fixedly connected to the bottom of the second spring (43).

3. The air conditioning duct structure for quick docking and installation according to claim 2, characterized in that: The positioning seat (42) has a limiting groove (5) on both sides of its bottom that works with the limiting block (32), and a limiting hole (6) is provided on one side of the inner cavity of the limiting groove (5).

4. The air conditioning duct structure for quick docking and installation according to claim 1, characterized in that: A sealing ring (7) is fixedly connected to the top of the connecting sleeve (31), and the sealing ring (7) is sleeved on the surface of the inner tube (2).

5. The air conditioning duct structure for quick docking and installation according to claim 1, characterized in that: A limiting sleeve (8) is fixedly connected to the top of the connecting pipe (1), and the top of the limiting sleeve (8) is connected to the inner pipe (2).

6. The air conditioning duct structure for quick docking and installation according to claim 2, characterized in that: The outer diameter of the inner tube (2) is adapted to the inner diameter of the connecting tube (41), and one side of the inner tube (2) extends into the inner cavity of the connecting tube (41).

7. The air conditioning duct structure for quick docking and installation according to claim 3, characterized in that: The limiting holes (6) are symmetrically arranged, and the limiting holes (6) are adapted to the limiting posts (35).