Heating and ventilation equipment pipeline connecting assembly
The design of the locking mechanism and sealing groove solves the problem of insufficient sealing of HVAC equipment pipe connections, enabling rapid installation and disassembly, and improving maintenance efficiency and sealing performance.
Patent Information
- Application Number
- CN202423277444.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing HVAC equipment piping connections suffer from insufficient sealing and are difficult to install and disassemble quickly, resulting in low maintenance and replacement efficiency and high costs.
The system employs a locking mechanism, including a fixed block, a translation and rotation mechanism, and an eccentric block. The eccentric block is driven to rotate eccentrically by a double-headed electric telescopic rod, enabling quick connection and disassembly of HVAC pipes. Combined with a sealing groove and sealing gasket, it ensures airtightness.
It enables rapid installation and disassembly of HVAC pipes, improves work efficiency, ensures normal system operation, enhances sealing, and reduces maintenance costs.
Smart Images

Figure CN223839928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of HVAC pipe connection technology, specifically to a pipe connection component for HVAC equipment. Background Technology
[0002] HVAC equipment piping mainly includes heating pipes, ventilation pipes, and air conditioning pipes. HVAC pipe connection components are important devices specifically used to connect HVAC equipment piping. HVAC pipe connectors are usually made of materials such as stainless steel and rubber. Their main function is to ensure that the piping system does not leak, maintain the sealing and pressure resistance of the piping system, thereby ensuring the stability and safe normal operation of the HVAC system.
[0003] Existing HVAC equipment piping typically uses flange or threaded connections, which results in insufficient sealing within the pipes and can easily lead to leaks. While welding HVAC pipes to fixed connection components can overcome this sealing problem, HVAC systems inevitably experience malfunctions during use. When repairs or replacements are needed, both threaded and welded connections require significant time and manpower to disassemble and install the pipes. The connection components cannot be quickly installed and disassembled, resulting in low efficiency and high costs. Utility Model Content
[0004] The purpose of this invention is to provide a connection component for HVAC equipment pipes, in order to solve the shortcomings of existing technologies where it is difficult to quickly install and disassemble HVAC pipes when maintenance and replacement are required.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a heating, ventilation, and air conditioning (HVAC) equipment pipe connection assembly, comprising an HVAC pipe one and an HVAC pipe two, wherein a connecting flange one is fixedly installed on one side of the HVAC pipe one, and fixing plates one are fixedly installed on all four sides of the connecting flange one, each of the four fixing plates one having a locking mechanism on the side near the HVAC pipe two; a connecting flange two is fixedly installed on the side of the HVAC pipe two near the HVAC pipe one, and fixing plates two are fixedly installed on all four sides of the connecting flange two, each of the four fixing plates two having a slot on the side near the HVAC pipe two; the locking mechanism is adapted to the slot, and the locking mechanism includes:
[0006] A fixing block, one side of which is fixedly connected to the side of the fixing plate one that is close to the heating and ventilation pipe two;
[0007] Two translation and rotation mechanisms are installed on both sides of the fixed block;
[0008] Two eccentric blocks are symmetrically installed at the two ends of the translation and rotation mechanisms away from the fixed blocks. The eccentric blocks can rotate eccentrically under the drive of the translation and rotation mechanisms, and their major axis direction is perpendicular to the connection direction of HVAC duct one and HVAC duct two.
[0009] Furthermore, the locking mechanism also includes two storage cylinders, which are symmetrically arranged on both sides of the fixing block and are fixedly connected to the fixing block.
[0010] Furthermore, both of the aforementioned translation and rotation mechanisms include:
[0011] A double-headed electric telescopic rod, wherein the double-headed electric telescopic rod is fixedly installed inside the fixing block;
[0012] A rotating drum is rotatably installed inside a storage tube. The rotating drum is fixedly connected to the screw of the double-headed electric telescopic rod. The surface of the rotating drum is provided with an inclined groove.
[0013] A fixing column is fixedly installed on the inner wall of the storage cylinder, and the fixing column is adapted to the inclined groove;
[0014] A locking pin is rotatably mounted on the end of the rotating drum away from the fixed block, and the end of the locking pin away from the fixed block can penetrate the rotating drum and be rotatably connected to the part of the rotating drum that is penetrated.
[0015] A spring is sleeved on the outer wall of the locking post, and its two ends are fixedly connected to the storage cylinder and the rotating cylinder, respectively.
[0016] Furthermore, the eccentric block is rotatably connected to the end of the locking pin away from the fixed block.
[0017] Furthermore, the card slot has limit grooves on both sides perpendicular to the HVAC pipe, and the limit grooves are adapted to the size of the eccentric block, which can push against the inner wall of the limit groove.
[0018] Furthermore, a sealing groove is provided on the side of the first HVAC pipe near the second HVAC pipe, and a sealing gasket is provided on the side of the second HVAC pipe near the first HVAC pipe, the sealing gasket being adapted to the sealing groove.
[0019] Compared with existing technologies, the HVAC equipment pipe connection assembly provided by this utility model can quickly connect HVAC pipe one and HVAC pipe two together through a locking mechanism, which greatly shortens the time for manual installation and disassembly, improves work efficiency, and ensures the normal operation of the system by timely maintenance and replacement of the connection assembly. The sealing gasket and sealing groove form a sealing layer between HVAC pipe one and HVAC pipe two, ensuring the sealing performance between them. In addition, through the cooperation of the translation and rotation mechanism and the eccentric block, the eccentric block can push against the inner wall of the limiting groove, thereby forming a radial force at the connection between HVAC pipe one and HVAC pipe two, further ensuring the sealing effect between the HVAC pipes. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0021] Figure 1 A perspective view of the HVAC equipment pipe connection assembly provided in the embodiment of this utility model;
[0022] Figure 2 A perspective view of a heating, ventilation, and air conditioning (HVAC) pipe provided for an embodiment of this utility model;
[0023] Figure 3 A perspective view of the second HVAC duct provided in this embodiment of the utility model;
[0024] Figure 4 This is a first perspective longitudinal section of the locking mechanism provided in an embodiment of the present utility model;
[0025] Figure 5 This is a second perspective longitudinal section view of the locking mechanism provided in an embodiment of the present utility model.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. HVAC pipe one; 2. HVAC pipe two; 3. Connecting flange one; 4. Connecting flange two; 5. Fixing plate one; 6. Fixing plate two; 7. Sealing groove; 8. Sealing gasket; 9. Locking mechanism; 91. Fixing block; 92. Storage cylinder; 93. Double-headed electric telescopic rod; 94. Rotary cylinder; 95. Inclined groove; 96. Fixing column; 97. Locking column; 98. Eccentric block; 99. Spring; 10. Slot; 11. Limiting groove. Detailed Implementation
[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0029] Example 1:
[0030] Please see Figure 1-5 A heating, ventilation, and air conditioning (HVAC) pipe connection assembly includes an HVAC pipe 1 and an HVAC pipe 2. A connecting flange 3 is fixedly installed on one side of the HVAC pipe 1. Fixing plates 5 are fixedly installed on all four sides of the connecting flange 3. A locking mechanism 9 is provided on the side of each of the four fixing plates 5 closest to the HVAC pipe 2. A connecting flange 4 is fixedly installed on the side of the HVAC pipe 2 near the HVAC pipe 1. Fixing plates 6 are fixedly installed on all four sides of the connecting flange 4. A slot 10 is provided on the side of each of the four fixing plates 6 closest to the HVAC pipe 2. The locking mechanism 9 is adapted to the slot 10. The locking mechanism 9 includes:
[0031] The fixing block 91 is fixedly connected on one side to the side of the fixing plate 5 near the heating and ventilation pipe 2;
[0032] Two translation and rotation mechanisms are installed on both sides of the fixed block 91;
[0033] Two eccentric blocks 98 are symmetrically installed at both ends of the two translation and rotation mechanisms away from the fixed block 91. The eccentric blocks 98 can rotate eccentrically under the drive of the translation and rotation mechanisms.
[0034] In a specific implementation, the eccentric block 98 can be elliptical, rectangular or other non-circular in shape, with its major axis perpendicular to the connection direction of HVAC pipe 1 and HVAC pipe 2. When the translation and rotation mechanism drives the eccentric block 98 to rotate, the far end of the eccentric block 98 will gradually approach or move away from the HVAC pipe 2 through the inner wall of the compression groove 10, providing a locking or unlocking function.
[0035] The locking mechanism 9 also includes two storage tubes 92, which are symmetrically arranged on both sides of the fixing block 91 and are fixedly connected to the fixing block 91.
[0036] Both translation and rotation mechanisms include:
[0037] A double-headed electric telescopic rod 93 is fixedly installed inside the fixing block 91.
[0038] Rotary drum 94 is rotatably installed inside storage tube 92. Rotary drum 94 is fixedly connected to the screw of double-headed electric telescopic rod 93. The surface of rotary drum 94 is provided with inclined groove 95.
[0039] Fixed post 96 is fixedly installed on the inner wall of storage cylinder 92, and fixed post 96 is adapted to inclined groove 95;
[0040] Locking pin 97 is rotatably mounted on the end of the rotating drum 94 away from the fixed block 91. The end of the locking pin 97 away from the fixed block 91 can pass through the rotating drum 94 and be rotatably connected to the part of the rotating drum 94 through which it is passed.
[0041] Spring 99 is sleeved on the outer wall of locking post 97, and its two ends are fixedly connected to storage cylinder 92 and rotating cylinder 94 respectively.
[0042] The eccentric block 98 is rotatably connected to the end of the locking pin 97 that is away from the fixed block 91.
[0043] The card slot 10 has limit grooves 11 on both sides perpendicular to the HVAC pipe 1. The limit grooves 11 are adapted to the size of the eccentric block 98, and the eccentric block 98 can push against the inner wall of the limit groove 11.
[0044] In a specific implementation, when the double-headed electric telescopic rod 93 begins to extend or retract, it drives the rotating drum 94 to rotate within the storage cylinder 92. Due to the cooperation of the inclined groove 95 and the fixed column 96, the rotation of the rotating drum 94 drives the locking column 97 to translate, thereby driving the eccentric block 98 to move, thus realizing the locking or unlocking function. During the locking process, the extension and retraction of the double-headed electric telescopic rod 93 causes the rotating drum 94 to rotate and drives the locking column 97 to move radially along the double-headed electric telescopic rod 93. When the distal end of the locking column 97 is inserted into the limiting groove 11 in the slot 10, the eccentric block 98 will also be pushed and squeezed into the slot 10 accordingly, forming a vertical force at the connection between HVAC pipe 1 and HVAC pipe 2, thereby ensuring a tight connection between HVAC pipe 1 and HVAC pipe 2.
[0045] During the unlocking process, the telescopic movement of the double-headed electric telescopic rod 93 will be reversed, causing the rotating drum 94 to rotate and drive the locking pin 97 to move away from the slot 10, thereby separating HVAC pipe 1 and HVAC pipe 2.
[0046] A sealing groove 7 is provided on the side of HVAC pipe 1 near HVAC pipe 2, and a sealing gasket 8 is provided on the side of HVAC pipe 2 near HVAC pipe 1. The sealing gasket 8 is compatible with the sealing groove 7.
[0047] Example 2:
[0048] Please see Figure 4 and Figure 5 This embodiment provides a technical solution based on embodiment one: the double-headed electric telescopic rod 93 can also be replaced by a servo motor and a gear screw structure. The motor rotation drives the screw to make horizontal linear motion, thereby driving the translation and rotation mechanism, and causing the eccentric block 98 to rotate eccentrically.
[0049] Working principle: During installation, HVAC pipe 1 and HVAC pipe 2 are initially aligned using connecting flange 3 and connecting flange 4. Then, the double-headed electric telescopic rod 93 drives the translation and rotation mechanism, causing the eccentric block 98 to rotate eccentrically. As the eccentric block 98 rotates, its distal end gradually inserts into the limiting groove 11 in the slot 10, allowing the sealing gasket 8 on one side of HVAC pipe 2 to extend into the sealing groove 7 on one side of HVAC pipe 1. When it is necessary to disassemble the connection assembly, simply reverse the driving of the translation and rotation mechanism, causing the eccentric block 98 to exit from the limiting groove 11 in the slot 10, separating the sealing gasket 8 from the sealing groove 7, thereby achieving the locking or unlocking function, ensuring a tight connection or quick unlocking of HVAC pipe 1 and HVAC pipe 2.
[0050] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A heating, ventilation, and air conditioning (HVAC) pipe connection assembly, comprising HVAC pipe one (1) and HVAC pipe two (2), characterized in that, A connecting flange 1 (3) is fixedly installed on one side of the HVAC pipe 1 (1). A fixing plate 1 (5) is fixedly installed on all four sides of the connecting flange 1 (3). A locking mechanism (9) is provided on the side of each of the four fixing plates 1 (5) near the HVAC pipe 2 (2). A connecting flange 2 (4) is fixedly installed on the side of the HVAC pipe 2 (1). A fixing plate 2 (6) is fixedly installed on all four sides of the connecting flange 2 (4). A slot (10) is provided on the side of each of the four fixing plates 2 (6) near the HVAC pipe 2 (2). The locking mechanism (9) is adapted to the slot (10). The locking mechanism (9) includes: The fixing block (91) is fixedly connected on one side to the side of the fixing plate (5) near the heating and ventilation pipe (2); Two translation and rotation mechanisms are installed on both sides of the fixed block (91); Two eccentric blocks (98) are symmetrically installed at both ends of the two translation and rotation mechanisms away from the fixed block (91). The eccentric blocks (98) can rotate eccentrically under the drive of the translation and rotation mechanisms, and their long axis direction is perpendicular to the connection direction of HVAC duct one (1) and HVAC duct two (2).
2. The HVAC equipment pipe connection assembly according to claim 1, characterized in that, The locking mechanism (9) also includes two storage tubes (92), which are symmetrically arranged on both sides of the fixing block (91) and are fixedly connected to the fixing block (91).
3. The HVAC equipment pipe connection assembly according to claim 1, characterized in that, Both of the aforementioned translation and rotation mechanisms include: A double-headed electric telescopic rod (93) is fixedly installed inside a fixing block (91); Rotary cylinder (94), which is rotatably installed inside storage cylinder (92), is fixedly connected to the screw of the double-headed electric telescopic rod (93), and the surface of the rotary cylinder (94) is provided with inclined groove (95); A fixing post (96) is fixedly installed on the inner wall of the storage cylinder (92), and the fixing post (96) is adapted to the inclined groove (95); Locking pin (97) is rotatably mounted on the end of the rotating cylinder (94) away from the fixed block (91). The end of the locking pin (97) away from the fixed block (91) can penetrate the rotating cylinder (94) and be rotatably connected to the penetration point of the rotating cylinder (94). A spring (99) is sleeved on the outer wall of the locking post (97), and its two ends are fixedly connected to the storage cylinder (92) and the rotating cylinder (94) respectively.
4. A pipe connection assembly for HVAC equipment according to claim 3, characterized in that, The eccentric block (98) is rotatably connected to the end of the locking pin (97) away from the fixed block (91).
5. A pipe connection assembly for HVAC equipment according to claim 1, characterized in that, The card slot (10) has a limiting groove (11) on both sides perpendicular to the HVAC pipe (1). The limiting groove (11) is adapted to the size of the eccentric block (98), and the eccentric block (98) can push against the inner wall of the limiting groove (11).
6. A pipe connection assembly for HVAC equipment according to claim 1, characterized in that, A sealing groove (7) is provided on the side of the first heating pipe (1) near the second heating pipe (2), and a sealing gasket (8) is provided on the side of the second heating pipe (2) near the first heating pipe (1). The sealing gasket (8) is adapted to the sealing groove (7).