Connecting joint for automobile plastic ventilating pipe
By incorporating a threaded structure and adjustment mechanism into the automotive plastic ventilation pipe connector, the problem of frequent bending caused by bumps is solved, thereby improving the stability and service life of the connector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING RUNQIANG AUTO PARTS CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-05
AI Technical Summary
The plastic ventilation pipe connectors in automobiles frequently bend during bumpy rides, leading to reduced lifespan and potential damage and air leakage.
A connector for automotive plastic ventilation pipes has been designed. The connector body has threads on both its surface and inner cavity. It is fixed by a threaded sleeve and a threaded tube. The degree of bending can be adjusted by adjusting the distance between the rotating bracket and the rotating plate. Stability is ensured by a fixing ring and a support plate.
It improves the stability and service life of ventilation ducts, prevents frequent bending and deformation caused by bumps, and extends the service life of joints.
Smart Images

Figure CN224201336U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of ventilation pipe connectors, specifically a connecting connector for automotive plastic ventilation pipes. Background Technology
[0002] Automotive plastic ventilation ducts are key components of automotive air conditioning and ventilation systems. Their main function is to guide air from the engine compartment or outside the vehicle into the vehicle and ensure air circulation inside the vehicle. Automotive plastic ventilation duct connectors are mainly used to connect and fix the ventilation duct system inside the vehicle. The connectors play a key role in the vehicle's ventilation, air conditioning and heating systems.
[0003] Ventilation duct connectors are generally used for connecting at the corners of ventilation ducts, and therefore have a certain degree of bending. When using connectors made of softer materials, the bending points of the connectors will bend and return to their original positions due to vibrations caused by the bumps during vehicle operation. Frequent bending not only reduces the service life of the connectors, but may also cause damage and air leakage at the bending points, affecting the normal use of the ventilation system.
[0004] In summary, this utility model provides a connecting joint for automotive plastic ventilation pipes to solve the above-mentioned problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A connector for automotive plastic ventilation ducts, comprising:
[0007] The main unit includes a connector body, a first ventilation pipe is provided at the bottom of the connector body, a second ventilation pipe is provided on the back of the connector body, and the surfaces of the first ventilation pipe and the second ventilation pipe are provided with external threads.
[0008] The adjustment unit includes two fixing rings. The fixing rings are located on the surface of the connector body and are fixedly connected to the surface of the connector body. The back of the lower fixing ring is movably connected to a rotating frame via a rotating shaft. The bottom of the upper fixing ring is movably connected to a rotating plate via a rotating shaft. The inner cavity of the rotating frame is threaded with a threaded rod.
[0009] Furthermore, in this utility model, the lower end and the rear end of the surface of the connector body are provided with external threads, the lower end and the rear end of the inner cavity of the connector body are provided with internal threads, and the front end of the second ventilation pipe extends into the inner cavity of the connector body and is threadedly connected to the inner cavity of the connector body.
[0010] Furthermore, in this utility model, the lower end and the rear end of the surface of the connector body are both threadedly connected to a threaded sleeve, a threaded tube is fixedly connected to one side of the threaded sleeve, the inner cavity of the threaded tube is provided with an internal thread, and the top of the first ventilation pipe extends to the inner cavity of the threaded tube and is threadedly connected to the inner cavity of the threaded tube.
[0011] Furthermore, in this utility model, positioning grooves are provided on both sides of the rotating frame, and positioning plates are fixedly connected to both sides of the bottom of the rotating plate. The bottom of the positioning plate extends into the inner cavity of the positioning groove and is slidably connected to the inner cavity of the positioning groove.
[0012] Furthermore, in this utility model, a support plate is fixedly connected between the two positioning plates, and the top of the threaded rod passes through the support plate and is movably connected to the inner cavity of the support plate through a bearing.
[0013] Beneficial effects: This utility model has the following beneficial effects:
[0014] This utility model features a connector body for connecting a first ventilation pipe and a second ventilation pipe. Since both the surface and inner cavity of the connector body are threaded, each end can accommodate two different types of ventilation pipes: the first ventilation pipe on the surface and the second ventilation pipe inside, thus improving its practicality. A threaded sleeve and threaded tube are used to fix the first ventilation pipe, improving its stability on the connector body surface. A fixing ring is used to support the rotating frame and rotating plate. Because the distance between the rotating frame and rotating plate is adjustable, the bending degree of the connector body can be adjusted and fixed at a certain angle, preventing frequent bending deformation due to bumps and thus extending the service life of the connector body. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the connection structure of the fixed ring, rotating frame and rotating plate of this utility model;
[0017] Figure 3 This is a schematic diagram of the rotating frame and rotating plate in their separated states according to this utility model.
[0018] Figure 4 This is a schematic diagram of the main view cross-sectional structure of the threaded sleeve and threaded tube of this utility model.
[0019] In the picture:
[0020] 1. Main unit; 101. Connector body; 102. First ventilation pipe; 103. Second ventilation pipe; 104. Threaded sleeve; 105. Threaded pipe; 2. Adjustment unit; 201. Fixing ring; 202. Rotating frame; 203. Rotating plate; 204. Threaded rod; 205. Positioning groove; 206. Positioning plate; 207. Support plate. Detailed Implementation
[0021] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.
[0022] Example 1
[0023] like Figure 1-4 As shown, this is the first embodiment of the present invention, which provides a connecting connector for automotive plastic ventilation ducts, comprising:
[0024] The main unit 1 includes a connector body 101. A first ventilation pipe 102 is provided at the bottom of the connector body 101, and a second ventilation pipe 103 is provided on the back of the connector body 101. The surfaces of the first ventilation pipe 102 and the second ventilation pipe 103 are both provided with external threads.
[0025] Adjustment unit 2 includes two fixing rings 201. The fixing rings 201 are located on the surface of the connector body 101 and are fixedly connected to the surface of the connector body 101. The back of the lower fixing ring 201 is movably connected to the rotating frame 202 via a rotating shaft. The bottom of the upper fixing ring 201 is movably connected to the rotating plate 203 via a rotating shaft. The inner cavity of the rotating frame 202 is threadedly connected to a threaded rod 204.
[0026] like Figure 1-4As shown, the connector body 101 is used to connect the first ventilation pipe 102 and the second ventilation pipe 103. Since the surface and inner cavity of the connector body 101 are both threaded, each end can be equipped with two different types of ventilation pipes. The surface can be equipped with the first ventilation pipe 102, and the inner cavity can be equipped with the second ventilation pipe 103, thereby improving its practicality. The threaded sleeve 104 and the threaded tube 105 are used to fix the first ventilation pipe 102. The fixing ring 201 is used to support the rotating frame 202 and the rotating plate 203. Since the distance between the rotating frame 202 and the rotating plate 203 can be adjusted, the bending degree of the connector body 101 can be adjusted by adjusting the distance between the rotating frame 202 and the rotating plate 203, and it can be fixed at a certain amplitude to prevent the connector body 101 from frequently bending and deforming due to bumps, thereby improving the service life of the connector body 101.
[0027] Example 2
[0028] Reference Figure 1 and 4 This is the second embodiment of the present invention, which is based on the previous embodiment.
[0029] In this embodiment, the lower end and the rear end of the surface of the connector body 101 are provided with external threads, and the lower end and the rear end of the inner cavity of the connector body 101 are provided with internal threads. The front end of the second ventilation pipe 103 extends into the inner cavity of the connector body 101 and is threadedly connected to the inner cavity of the connector body 101.
[0030] The lower end and rear end of the surface of the connector body 101 are threadedly connected to threaded sleeves 104. A threaded tube 105 is fixedly connected to one side of the threaded sleeve 104. The inner cavity of the threaded tube 105 is provided with internal threads. The top of the first ventilation tube 102 extends to the inner cavity of the threaded tube 105 and is threadedly connected to the inner cavity of the threaded tube 105.
[0031] like Figure 1 and 4 As shown, the surface and inner cavity of the connector body 101 are both provided with threads, so each end can be equipped with two different types of ventilation pipes. The surface can be equipped with the first ventilation pipe 102, and the inner cavity can be equipped with the second ventilation pipe 103, thereby improving its practicality. The threaded sleeve 104 and the threaded tube 105 are used to fix the first ventilation pipe 102.
[0032] Example 3
[0033] Reference Figure 3 This is the third embodiment of the present invention, which is based on the first two embodiments.
[0034] In this embodiment, positioning grooves 205 are provided on both sides of the rotating frame 202, and positioning plates 206 are fixedly connected to both sides of the bottom of the rotating plate 203. The bottom of the positioning plate 206 extends into the inner cavity of the positioning groove 205 and is slidably connected to the inner cavity of the positioning groove 205.
[0035] A support plate 207 is fixedly connected between the two positioning plates 206. The top of the threaded rod 204 passes through the support plate 207 and is movably connected to the inner cavity of the support plate 207 through a bearing.
[0036] like Figure 3 As shown, the positioning groove 205 and the positioning plate 206 cooperate to limit the rotation frame 202 and the rotation plate 203, ensuring that they are in the same straight line. The support plate 207 is used to support the threaded rod 204. By rotating the threaded rod 204, the distance between the rotation frame 202 and the rotation plate 203 can be adjusted, thereby adjusting the bending amplitude of the connector body 101.
[0037] During use, the surface and inner cavity of the connector body 101 are both threaded, so each end can be equipped with two different types of ventilation pipes. The surface can be equipped with the first ventilation pipe 102, and the threaded sleeve 104 and threaded tube 105 are used to fix the first ventilation pipe 102, improving its stability on the surface of the connector body 101. The inner cavity can be equipped with the second ventilation pipe 103, thereby improving its practicality. When it is necessary to adjust the angle of the connector body 101, the threaded rod 204 is rotated. By rotating the threaded rod 204, the distance between the rotating frame 202 and the rotating plate 203 can be adjusted, thereby adjusting the bending amplitude of the connector body 101. At this time, the positioning groove 205 and the positioning plate 206 cooperate to limit the rotating frame 202 and the rotating plate 203, ensuring that they are in the same straight line.
[0038] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.
[0039] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.
Claims
1. A connector for automotive plastic ventilation ducts, characterized in that: include, The main body unit (1) includes a connector body (101), a first ventilation pipe (102) is provided at the bottom of the connector body (101), and a second ventilation pipe (103) is provided on the back of the connector body (101). The surfaces of the first ventilation pipe (102) and the second ventilation pipe (103) are both provided with external threads. Adjustment unit (2), the adjustment unit (2) includes a fixing ring (201), the number of fixing rings (201) is two, the fixing ring (201) is located on the surface of the connector body (101) and is fixedly connected to the surface of the connector body (101), the back of the lower fixing ring (201) is movably connected to a rotating frame (202) through a rotating shaft, the bottom of the upper fixing ring (201) is movably connected to a rotating plate (203) through a rotating shaft, and the inner cavity of the rotating frame (202) is threadedly connected to a threaded rod (204).
2. The connector for automotive plastic ventilation ducts as described in claim 1, characterized in that: The lower end and rear end of the surface of the connector body (101) are provided with external threads, and the lower end and rear end of the inner cavity of the connector body (101) are provided with internal threads. The front end of the second ventilation pipe (103) extends into the inner cavity of the connector body (101) and is threadedly connected to the inner cavity of the connector body (101).
3. The connector for automotive plastic ventilation ducts as described in claim 1, characterized in that: The lower end and rear end of the surface of the connector body (101) are threaded with threaded sleeves (104). A threaded tube (105) is fixedly connected to one side of the threaded sleeve (104). The inner cavity of the threaded tube (105) is provided with internal threads. The top of the first ventilation pipe (102) extends to the inner cavity of the threaded tube (105) and is threadedly connected to the inner cavity of the threaded tube (105).
4. The connector for automotive plastic ventilation ducts as described in claim 1, characterized in that: The rotating frame (202) has positioning grooves (205) on both sides, and positioning plates (206) are fixedly connected to both sides of the bottom of the rotating plate (203). The bottom of the positioning plate (206) extends into the inner cavity of the positioning groove (205) and is slidably connected to the inner cavity of the positioning groove (205).
5. The connector for automotive plastic ventilation ducts as described in claim 4, characterized in that: A support plate (207) is fixedly connected between the two positioning plates (206). The top of the threaded rod (204) passes through the support plate (207) and is movably connected to the inner cavity of the support plate (207) through a bearing.