Ventilation pipeline connecting device of heating ventilation air conditioning system
By adopting a combination design of connection support components and locking components in the HVAC system, the problems of unstable connection and poor sealing of traditional ventilation ducts are solved, thereby improving the stability and sealing of duct connections and reducing air leakage and energy waste.
Patent Information
- Application Number
- CN202520265837.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Traditional ventilation duct connections are prone to loosening under airflow impact, resulting in unstable connections and poor sealing, leading to air leakage problems and affecting the operating efficiency and energy consumption of HVAC systems.
The design employs a combination of a connecting support assembly and a locking assembly. The connecting support assembly includes a connecting support tube and a mounting plate, while the locking assembly consists of a connecting seat, a connecting plate, a pressing plate, and fastening bolts. Combined with a sealing ring, the connection stability and sealing are enhanced.
It improves the stability of duct connections, prevents them from falling off, enhances sealing, reduces air leakage, simplifies the installation and disassembly process, and adapts to the needs of different working conditions.
Smart Images

Figure CN223754903U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ventilation pipeline technical field especially, relates to a ventilation pipeline connecting device of heating ventilation air conditioning system. BACKGROUND
[0002] In the heating ventilation air conditioning system, ventilation pipeline as the key passage of air flow, its connection stability and sealing property directly influence the system's operation effect and energy consumption.
[0003] The traditional ventilation pipeline connecting mode adopts simple flange connection, and the flanges of adjacent air pipes are fastened through bolts, however, this connecting mode has many disadvantages, on the one hand, only relying on flange connection lacks effective support structure in the air pipe, when the system operates, the impact of airflow can easily make the connecting part loose, thereby influencing the stability of the pipeline, and even can cause the air pipe to fall off, influence the normal operation of the heating ventilation air conditioning system, on the other hand, the sealing performance of the traditional flange connection is limited, and in the long-term use process, the connecting part is prone to gaps, leading to air leakage, which not only reduces the ventilation efficiency of the system, but also causes energy waste. UTILITY MODEL CONTENTS
[0004] The utility model discloses a ventilation pipeline connecting device of heating ventilation air conditioning system.
[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A ventilation pipeline connecting device of heating ventilation air conditioning system, including the flange for the butt joint of two air pipes of wind pipe end part, the inside of adjacent two air pipes is equipped with the connecting support assembly that cooperates with its inner diameter, be provided with with its cooperation locking assembly between connecting support assembly and adjacent two flanges, wherein, connecting support assembly includes the connecting support pipe of the inside of wind pipe and the mounting plate of setting on the outer wall of connecting support pipe, locking assembly and mounting plate are movably connected.
[0007] As the preferred technical scheme of the application, the mounting plate is provided with a moving groove matched with the locking assembly, and the mounting plate is provided with a through hole matched with the flange.
[0008] As the preferred technical scheme of the application, the locking assembly includes a connecting seat movably arranged in the moving groove, a connecting plate arranged at the top of the connecting seat, two extrusion plates movably arranged at the bottom of the connecting plate, and a fastening bolt penetrating through the two extrusion plates.
[0009] As the preferred technical scheme of the application, the connecting plate is provided with a movable groove matched with the extrusion plate to enable the extrusion plate to move left and right.
[0010] As a preferred technical scheme of the present application, the locking assembly is provided with a plurality of groups along the connecting support assembly.
[0011] As a preferred technical scheme of the present application, the connecting support pipe outer wall is sleeved with a sealing rubber ring between the flange and the mounting plate.
[0012] Compared with the prior art, the ventilation pipeline connecting device of the heating and air conditioning system has the following beneficial effects:
[0013] 1. The ventilation pipeline connecting device of the heating and air conditioning system, the connecting support assembly is arranged in the adjacent two air pipes, the connecting support pipe in the connecting support assembly is matched with the inner diameter of the air pipe, and internal support structure is provided for the air pipe connection, compared with the traditional flange connection mode, the loosening of the connection caused by air flow impact is effectively avoided, the stability of the pipeline is greatly improved, the risk of air pipe falling off is reduced, and the normal operation of the heating and air conditioning system is ensured.
[0014] 2. The ventilation pipeline connecting device of the heating and air conditioning system, the connecting support pipe outer wall is sleeved with a sealing rubber ring, and the sealing rubber ring is located between the flange and the mounting plate, which further enhances the sealing performance of the air pipe connection, effectively prevents air leakage caused by gaps in the connection after long-term use, thereby improving the ventilation efficiency of the system and reducing energy waste.
[0015] 3. The ventilation pipeline connecting device of the heating and air conditioning system, the locking assembly and the mounting plate of the connecting support assembly are movably connected, the mounting plate is provided with a moving groove matched with the locking assembly, the connecting seat in the locking assembly can move in the moving groove, the connecting plate is further provided with a moving groove for left and right movement of the extrusion plate, and the extrusion plate is penetrated by the fastening bolt, which makes the operation more convenient during installation and disassembly, reduces the labor and time cost, and is conducive to the maintenance and upgrading of the heating and air conditioning system.
[0016] 4. The ventilation pipeline connecting device of the heating and air conditioning system, the locking assembly is provided with a plurality of groups along the connecting support assembly, and the fastening position and force can be flexibly adjusted according to actual needs, further ensuring the stability and sealing performance of the air pipe connection, and better adapting to the use requirements under different working conditions. DRAWINGS
[0017] Figure 1 The structure of the utility model Figure 1 ;
[0018] Figure 2 The structure of the utility model Figure 2 ;
[0019] Figure 3The utility model discloses a structure schematic view of connecting support subassembly in the utility model,
[0020] Figure 4 The utility model discloses a structure schematic view of locking subassembly in the utility model Figure 1 ;
[0021] Figure 5 The utility model discloses a structure schematic view of locking subassembly in the utility model Figure 2 .
[0022] In the drawing,
[0023] 100, air pipe, 101, flange, 200, connecting support subassembly, 201, connecting support pipe, 202, mounting plate, 203, moving groove, 204, through hole, 205, sealing rubber ring, 300, locking subassembly, 301, connecting seat, 302, connecting plate, 303, extruding plate, 304, fastening bolt, 305, movable groove. DETAILED DESCRIPTION
[0024] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, and all other embodiments obtained by the person skilled in the art without creative work on the basis of the embodiments in the utility model belong to the range protected by the utility model. EMBODIMENT
[0025] Referring to Figures 1-5 A ventilation pipe connecting device of a heating ventilation air conditioning system, including the flange 101 for butt joint two air pipes 100 set in the end of air pipe 100, the connecting support subassembly 200 that is cooperated with its inner diameter is set in the inside of adjacent two air pipes 100, and the locking subassembly 300 that is cooperated with it is provided between connecting support subassembly 200 and adjacent two flanges 101, wherein, connecting support subassembly 200 includes the connecting support pipe 201 that is set in the inside of air pipe 100 and the mounting plate 202 that is set on the outer wall of connecting support pipe 201, and locking subassembly 300 is movably connected with mounting plate 202.
[0026] Referring to Figure 3 The moving groove 203 that is cooperated with locking subassembly 300 is provided on mounting plate 202, and the through hole 204 that is cooperated with flange 101 is provided on mounting plate 202.
[0027] Referring to Figures 4-5The locking assembly 300 comprises a connecting seat 301 movably arranged inside the moving groove 203, a connecting plate 302 arranged on the top of the connecting seat 301, two extrusion plates 303 movably arranged on the bottom of the connecting plate 302, and a fastening bolt 304 penetrating through the two extrusion plates 303.
[0028] The connecting plate 302 is provided with a moving groove 305 cooperating with the extrusion plates 303 to enable the extrusion plates 303 to move left and right.
[0029] The locking assembly 300 is arranged along the connecting support assembly 200 in several groups.
[0030] With reference to Figures 1-2 The connecting support pipe 201 is sleeved with a sealing rubber ring 205 on the outer wall, and the sealing rubber ring 205 is located between the flanges 101 and the mounting plate 202.
[0031] Specifically, when the ventilation pipe 100 connection device of the present application is used, during installation of the ventilation pipe 100 connection device, the connecting support pipe 201 in the connecting support assembly 200 is first sleeved into the interiors of two adjacent ventilation pipes 100, and since the connecting support pipe 201 cooperates with the inner diameters of the ventilation pipes 100, reliable internal support is provided for the connection of the ventilation pipes 100, and meanwhile, flanges 101 for abutting are arranged at the end portions of the ventilation pipes 100, and the two adjacent flanges 101 are further fastened and connected by the subsequently installed locking assembly 300. The mounting plate 202 in the connecting support assembly 200 is arranged on the outer wall of the connecting support pipe 201, and the locking assembly 300 is movably connected with the mounting plate 202, so that the connecting support assembly 200 and the locking assembly 300 cooperate to make the connection between the ventilation pipes 100 more stable, effectively avoiding loosening caused by air flow impact when only the flanges 101 are connected, and greatly enhancing the stability of the pipe connection.
[0032] The mounting plate 202 is provided with a moving groove 203, and the connecting seat 301 of the locking assembly 300 is movable in the moving groove 203. The connecting seat 301 is provided with the connecting plate 302 on the top, and the two extrusion plates 303 are movably arranged on the bottom of the connecting plate 302. The fastening bolt 304 penetrates through the two extrusion plates 303. When it is necessary to fasten the adjacent ventilation pipes 100, the fastening bolt 304 is adjusted to enable the two extrusion plates 303 to move left and right in the moving groove 305 of the connecting plate 302, and the extrusion plates 303 extrude the two adjacent flanges 101, so as to tightly connect the two adjacent ventilation pipes 100 together. Since the locking assembly 300 is arranged along the connecting support assembly 200 in several groups, the fastening bolt 304 can be flexibly adjusted at different positions according to actual conditions, so that the flanges 101 at each position can be firmly extruded, and the stability of the entire connection is ensured.
[0033] The outer wall of the connecting support pipe 201 is sleeved with a sealing rubber ring 205, which is located between the flange 101 and the mounting plate 202. When the adjacent two flanges 101 are fastened through the locking assembly 300, the sealing rubber ring 205 is extruded, fills the gap possibly existing between the flange 101 and the mounting plate 202, forms a good sealing structure, effectively prevents air leakage due to the gap at the connection after long-term use, improves the ventilation efficiency of the system, and reduces energy waste.
[0034] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A ventilation duct connecting device of a heating, ventilation and air conditioning system, comprising a flange (101) arranged at the end of a ventilation duct (100) for abutting two ventilation ducts (100), characterized in that, Two adjacent air pipes (100) are internally sleeved with a connecting support assembly (200) matched with the inner diameter of the air pipes (100), the connecting support assembly (200) and the two adjacent flanges (101) are provided with a locking assembly (300) matched therewith, wherein the connecting support assembly (200) comprises a connecting support pipe (201) sleeved in the air pipe (100) and a mounting plate (202) provided on the outer wall of the connecting support pipe (201), and the locking assembly (300) is movably connected with the mounting plate (202).
2. A ventilation duct connection device for a heating, ventilation and air conditioning system according to claim 1, characterized in that The mounting plate (202) is provided with a moving groove (203) matched with the locking assembly (300), and the mounting plate (202) is provided with a penetrating hole (204) matched with the flange (101).
3. A ventilation duct connection device for a heating, ventilation and air conditioning system according to claim 2, characterized in that The locking assembly (300) comprises a connecting seat (301) movably arranged in the moving groove (203), a connecting plate (302) arranged on the top of the connecting seat (301), two extrusion plates (303) movably arranged on the bottom of the connecting plate (302), and a fastening bolt (304) penetrating through the two extrusion plates (303).
4. The vent duct connection device of a heating, ventilation, and air conditioning system according to claim 3, wherein, The connecting plate (302) is provided with a moving groove (305) matched with the extrusion plate (303) to enable the extrusion plate (303) to move left and right.
5. The vent duct connection apparatus of a heating, ventilation, and air conditioning system according to claim 1, wherein, The locking assembly (300) is provided with a plurality of groups along the connecting support assembly (200).
6. The vent duct connection apparatus of a heating, ventilation, and air conditioning system according to claim 1, wherein The outer wall of the connecting support pipe (201) is sleeved with a sealing rubber ring (205), and the sealing rubber ring (205) is located between the flange (101) and the mounting plate (202).