Modular quick-fit ventilation duct connector

Abstract

The utility model discloses a modularization quick -mounting ventilation pipe connecting piece belongs to automobile ventilation pipe connecting technical field, and its technical key points include ventilation pipe main part, and the one end of ventilation pipe main part is provided with the connecting pipe, and the one end fixedly connected with first fixed ring is arranged to ventilation pipe main part close connecting pipe, and the surface symmetrical sleeve of first fixed ring is equipped with two first locating ring, and the surface close connecting pipe of two first locating ring all is fixedly connected with first limit shell, and the utility model connecting piece adopts split type structure, and is convenient to connect in the inside of the car instrument desk of limited space, poor sight, is inserted with the cooperation of first limit ring and second limit ring, and the embedding of rubber ring and first limit ring and the setting of sealing washer, forms multiple sealing and limiting mechanism, not only effectively prevents the relative rotation and displacement between ventilation pipe and connecting pipe, also has improved the air tightness of connecting place obviously.

Description

Technical Field

[0001] This utility model belongs to the field of automotive ventilation pipe connection technology, specifically relating to a modular quick-installation ventilation pipe connector. Background Technology

[0002] In the modern automotive industry, air conditioning and ventilation systems are one of the key subsystems for ensuring driving and riding comfort. Ventilation ducts, acting as the "blood vessels" of this system, are responsible for efficiently and accurately delivering treated air (cool, hot, or natural air) from the fan unit to the various air vents within the vehicle cabin. Ventilation duct connectors are the core interfaces connecting different duct sections, guide components, and air vents; their performance directly affects the efficiency of the entire ventilation system, NVH (noise, vibration, and harshness) performance, and the ease of assembly and maintenance.

[0003] A search revealed Chinese patent CN218702611U, which discloses an automotive ventilation duct assembly, including a support plate. The upper side of the support plate is equipped with a ventilation duct and a pipe interface. However, traditional connectors often use simple buckles or bands, which are extremely inconvenient to operate when assembling inside the car dashboard where the space is extremely small and the line of sight is obstructed. Incorrect installation may also lead to loose connections or air leakage. Utility Model Content

[0004] The purpose of this utility model is to provide a modular quick-installation ventilation pipe connector to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular quick-installation ventilation duct connector, comprising a ventilation duct body, a connecting pipe at one end of the ventilation duct body, a first fixing ring fixedly connected to the end of the ventilation duct body near the connecting pipe, two first positioning rings symmetrically sleeved on the surface of the first fixing ring, a first limiting shell fixedly connected to the side of each of the two first positioning rings near the connecting pipe, a plurality of second limiting rings uniformly fixedly connected along the axis on the inner wall of the two first limiting shells, a second fixing ring fixedly connected to the end of the connecting pipe near the ventilation duct body, two second positioning rings symmetrically sleeved on the surface of the second fixing ring, a second limiting shell fixedly connected to the side of each second positioning ring near the ventilation duct body, a plurality of first limiting rings uniformly fixedly connected to the outer surface of each second limiting shell along the axis, and two connecting plates symmetrically fixedly connected to the surface of each first limiting shell, the two connecting plates on the same side being fitted together and connected to each other by bolts.

[0006] Preferably, the diameter of the second limiting shell is smaller than the diameter of the first limiting shell, and the two second limiting shells are located between the two first limiting shells, and each pair of first limiting rings is located between the two second limiting rings.

[0007] Preferably, the inner walls of the two first limiting shells are each uniformly fixedly connected with a plurality of rubber rings along the axis, each rubber ring being located between every two second limiting rings, and each rubber ring being inserted between two first limiting rings.

[0008] Preferably, a plurality of first limiting blocks are uniformly fixedly connected to the surface of the first fixing ring, and a positioning groove is formed inside the first positioning ring at the position of the first limiting block. A plurality of second limiting blocks are uniformly fixedly connected to the surface of the second fixing ring, and a positioning groove is formed in the second positioning ring at the position of the second limiting block.

[0009] Preferably, the cross-sections of the second positioning ring and the first positioning ring are perpendicular to each other.

[0010] Preferably, a sealing ring is provided between the ventilation duct body and the connecting pipe, and the two sides of the sealing ring are respectively in contact with the ventilation duct body and the connecting pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The connector in this utility model adopts a split structure, and modular assembly is achieved through components such as the first positioning ring, the second positioning ring, the first limiting shell, and the second limiting shell. It is convenient to connect in the interior of the car dashboard where space is limited and visibility is poor. This design significantly improves the assembly efficiency and operability in complex environments.

[0012] 2. This utility model forms a multi-layer sealing and limiting mechanism through the insertion and cooperation of the first limiting ring and the second limiting ring, the nesting of the rubber ring and the first limiting ring, and the setting of the sealing ring. It not only effectively prevents the relative rotation and displacement between the ventilation pipe and the connecting pipe, but also significantly improves the airtightness of the connection, avoids air leakage or loosening, and ensures the stable operation of the ventilation system.

[0013] 3. This utility model has a first limiting block and a second limiting block respectively provided on the first fixing ring and the second fixing ring, which cooperate with the positioning groove on the positioning ring to prevent the positioning ring from rotating on its own during the assembly process. This design ensures the accurate positioning of the connecting parts during assembly, avoids poor sealing or unstable connection caused by misalignment, and improves the consistency and reliability of the assembly. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the second limiting ring and rubber ring structure of this utility model; Figure 4This is a schematic diagram of the first limiting shell and connecting plate structure of this utility model; In the diagram: 1. Ventilation duct body; 2. Connecting pipe; 3. First positioning ring; 4. First limiting shell; 5. Connecting plate; 6. First fixing ring; 7. First limiting block; 8. First limiting ring; 9. Second limiting ring; 10. Rubber ring; 11. Second fixing ring; 12. Second limiting block; 13. Second positioning ring; 14. Second limiting shell; 15. Sealing ring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-4 This utility model provides a modular quick-installation ventilation duct connector, including a ventilation duct body 1, a connecting pipe 2 at one end of the ventilation duct body 1, a first fixing ring 6 fixedly connected to the end of the ventilation duct body 1 near the connecting pipe 2, two first positioning rings 3 symmetrically sleeved on the surface of the first fixing ring 6, a first limiting shell 4 fixedly connected to the side of each of the two first positioning rings 3 near the connecting pipe 2, and a plurality of second limiting rings 9 evenly fixedly connected along the axis on the inner wall of the two first limiting shells 4, a second fixing ring 11 fixedly connected to the end of the connecting pipe 2 near the ventilation duct body 1, two second positioning rings 13 symmetrically sleeved on the surface of the second fixing ring 11, a second limiting shell 14 fixedly connected to the side of each second positioning ring 13 near the ventilation duct body 1, a plurality of first limiting rings 8 evenly fixedly connected along the axis on the outer surface of each second limiting shell 14, and two connecting plates symmetrically fixedly connected to the surface of each first limiting shell 4. 5. Two connecting plates 5 located on the same side are fitted together and connected to each other by bolts. When it is necessary to connect the ventilation pipe body 1 and the connecting pipe 2, the ventilation pipe body 1 and the connecting pipe 2 are brought close to each other. Then, the two second positioning rings 13 are first fitted onto the surface of the second fixing ring 11. At the same time as the two second positioning rings 13 merge, the two second limiting shells 14 will also merge into a cylindrical shape. Then, the two first positioning rings 3 are fitted onto the surface of the first fixing ring 6, so that the two first limiting shells 4 merge into a cylindrical shape. When the first limiting shell 4 is in a cylindrical shape, the two first limiting shells 4 will fit onto the surface of the two second limiting shells 14. When the two first limiting shells 4 merge, the two connecting plates 5 will fit together. Then, the two connecting plates 5 are locked by bolts, realizing the modularization of the connection. When assembling in the interior of the car dashboard where the space is extremely small and the line of sight is obstructed, the connecting parts can be installed one by one.

[0017] Preferably, the diameter of the second limiting shell 14 is smaller than the diameter of the first limiting shell 4, and the two second limiting shells 14 are located between the two first limiting shells 4. Each pair of first limiting rings 8 is located between the two second limiting rings 9. The inner walls of the two first limiting shells 4 are uniformly fixedly connected with a number of rubber rings 10 along the axis. Each rubber ring 10 is located between each pair of second limiting rings 9 and is inserted between the two first limiting rings 8. When the two first limiting shells 4 are merged, the number of first limiting rings 8 will be inserted between the two second limiting rings 9 respectively, and the number of rubber rings 10 will be inserted between the two first limiting rings 8 at the same time. By limiting each other through the second limiting rings 9 and the first limiting rings 8, the ventilation pipe body 1 and the connecting pipe 2 are limited. By cooperating with each other through the rubber rings 10 and the first limiting rings 8, the ventilation pipe body 1 and the connecting pipe 2 are sealed.

[0018] Preferably, a plurality of first limiting blocks 7 are uniformly fixedly connected to the surface of the first fixing ring 6, and positioning grooves are formed inside the first positioning ring 3 at the positions of the first limiting blocks 7. A plurality of second limiting blocks 12 are uniformly fixedly connected to the surface of the second fixing ring 11, and positioning grooves are formed at the positions of the second limiting blocks 12 of the second positioning ring 13. When the first positioning ring 3 is fitted onto the surface of the first fixing ring 6, the first limiting blocks 7 will be inserted into the interior of the positioning grooves to limit the first positioning ring 3. When the second positioning ring 13 is fitted onto the surface of the second fixing ring 11, the second limiting blocks 12 will also be inserted into the interior of the limiting grooves to limit the second positioning ring 13, thus preventing the connector from rotating on its own when the ventilation pipe body 1 and the connecting pipe 2 are connected.

[0019] Preferably, the cross-sections of the second positioning ring 13 and the first positioning ring 3 are perpendicular to each other, and the cross-sections of the two second positioning rings 13 and the two first positioning rings 3 are perpendicular to each other to increase the sealing performance of the connector.

[0020] Preferably, a sealing ring 15 is provided between the ventilation duct body 1 and the connecting pipe 2, and both sides of the sealing ring 15 are respectively in contact with the ventilation duct body 1 and the connecting pipe 2. Before the ventilation duct body 1 and the connecting pipe 2 come into contact with each other, the sealing ring 15 is placed between the ventilation duct body 1 and the connecting pipe 2, and the two sides of the ventilation duct body 1 and the connecting pipe 2 are in contact with each other, thereby enhancing the sealing of the connection between the ventilation duct body 1 and the connecting pipe 2 through the sealing ring 15.

[0021] The use of this utility model involves the following steps: S1: When it is necessary to connect the ventilation pipe body 1 and the connecting pipe 2, bring the ventilation pipe body 1 and the connecting pipe 2 close to each other, and then first put the two second positioning rings 13 on the surface of the second fixing ring 11. At the same time as the two second positioning rings 13 merge, the two second limiting shells 14 will also merge into a cylindrical shape. Then put the two first positioning rings 3 on the surface of the first fixing ring 6, so that the two first limiting shells 4 merge into a cylindrical shape. When the first limiting shell 4 is in a cylindrical shape, the two first limiting shells 4 will fit on the surface of the two second limiting shells 14. When the two first limiting shells 4 merge, the two connecting plates 5 will fit together. Then the two connecting plates 5 are locked by bolts, realizing the modularization of the connection. When assembling in the interior of the car dashboard where the space is extremely small and the line of sight is obstructed, the connecting parts can be installed one by one. S2: When the two first limiting shells 4 are combined, several first limiting rings 8 will be inserted between the two second limiting rings 9 respectively, and several rubber rings 10 will be inserted between the two first limiting rings 8 at the same time. By limiting each other between the second limiting rings 9 and the first limiting rings 8, the ventilation pipe body 1 and the connecting pipe 2 are limited. By cooperating with each other between the rubber rings 10 and the first limiting rings 8, the ventilation pipe body 1 and the connecting pipe 2 are sealed. S3: When the first positioning ring 3 is fitted onto the surface of the first fixed ring 6, the first limiting block 7 will be inserted into the interior of the positioning groove to limit the first positioning ring 3. When the second positioning ring 13 is fitted onto the surface of the second fixed ring 11, the second limiting block 12 will also be inserted into the interior of the limiting groove to limit the second positioning ring 13, thus preventing the connector from rotating on its own when the ventilation pipe body 1 and the connecting pipe 2 are connected. S4: Before the ventilation duct body 1 and the connecting pipe 2 come into contact with each other, a sealing ring 15 is placed between the ventilation duct body 1 and the connecting pipe 2, and the two sides of the ventilation duct body 1 and the connecting pipe 2 are made to fit together with the sealing ring 15, thereby enhancing the sealing of the connection between the ventilation duct body 1 and the connecting pipe 2 through the sealing ring 15.

[0022] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change. The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs. The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A modular quick-installation ventilation duct connector, comprising a ventilation duct body (1), wherein a connecting pipe (2) is provided at one end of the ventilation duct body (1), characterized in that: The ventilation pipe body (1) is fixedly connected to a first fixing ring (6) at one end near the connecting pipe (2). Two first positioning rings (3) are symmetrically fitted on the surface of the first fixing ring (6). A first limiting shell (4) is fixedly connected to the side of the two first positioning rings (3) near the connecting pipe (2). Several second limiting rings (9) are evenly fixedly connected to the inner wall of the two first limiting shells (4) along the axis. A second fixing ring (11) is fixedly connected to one end of the connecting pipe (2) near the ventilation pipe body (1). Two second positioning rings (13) are symmetrically fitted on the surface of the second fixing ring (11). A second limiting shell (14) is fixedly connected to the side of each second positioning ring (13) near the ventilation pipe body (1). Several first limiting rings (8) are evenly fixedly connected to the outer surface of each second limiting shell (14) along the axis. Two connecting plates (5) are symmetrically fixedly connected to the surface of each first limiting shell (4). The two connecting plates (5) on the same side are fitted together and connected to each other by bolts.

2. The modular quick-installation ventilation duct connector according to claim 1, characterized in that: The diameter of the second limiting shell (14) is smaller than the diameter of the first limiting shell (4), and the two second limiting shells (14) are located between the two first limiting shells (4), and each pair of first limiting rings (8) is located between the two second limiting rings (9).

3. A modular quick-installation ventilation duct connector according to claim 2, characterized in that: The inner walls of the two first limiting shells (4) are uniformly fixed with a number of rubber rings (10) along the axis. Each rubber ring (10) is located between every two second limiting rings (9) and each rubber ring (10) is inserted between two first limiting rings (8).

4. A modular quick-installation ventilation duct connector according to claim 1, characterized in that: The surface of the first fixed ring (6) is uniformly fixedly connected with a number of first limiting blocks (7), and the interior of the first positioning ring (3) is provided with positioning grooves at the positions of the first limiting blocks (7). The surface of the second fixed ring (11) is uniformly fixedly connected with a number of second limiting blocks (12), and the second positioning ring (13) is provided with positioning grooves at the positions of the second limiting blocks (12).

5. A modular quick-installation ventilation duct connector according to claim 4, characterized in that: The second positioning ring (13) and the first positioning ring (3) are perpendicular to each other at their cross-sections.

6. A modular quick-installation ventilation duct connector according to claim 1, characterized in that: A sealing ring (15) is provided between the ventilation pipe body (1) and the connecting pipe (2), and the two sides of the sealing ring (15) are respectively in contact with the ventilation pipe body (1) and the connecting pipe (2).

Images