Mounting structure of drainage pipe of automobile ventilation cover plate
By installing the drain outlet of the drain pipe on the inner plate of the front cabin side beam and using a snap-fit connector with a wedge-shaped surface, the problem of inconvenient drain pipe installation was solved, achieving a convenient and secure installation effect and reducing costs.
Patent Information
- Application Number
- CN202520339848.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The outlet of the existing automotive ventilation cover drain pipe is installed too far from the ventilation cover, which makes installation inconvenient and requires multiple fasteners, and space is limited.
Design an installation structure for a car ventilation cover drain pipe, install the drain pipe outlet on the mounting hole of the inner panel of the front compartment side beam, and use a snap-fit connector with a wedge-shaped surface to simplify the installation process by using a blow-molded square tube structure.
It enables convenient installation of drainage pipes, reduces installation costs, and improves installation stability and space utilization efficiency by simplifying the structure.
Smart Images

Figure CN223735972U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive technology, and more specifically, it relates to an installation structure for a drainage pipe of an automotive ventilation cover. Background Technology
[0002] The ventilation cover is an important component of a car, typically located above the engine compartment, connecting the windshield and the engine hood. The ventilation cover serves to guide rainwater or car wash water out of the vehicle, preventing water from flowing into the body and sheet metal structure, and protecting the sheet metal from corrosion. To achieve drainage, the ventilation cover usually has drainage channels, with drain holes at both ends. The channels are typically sloping, higher in the middle and lower at both ends, to facilitate the drainage of incoming water. When drain holes are provided, the channels guide water into the drain holes, which then drain it out. Some current models also have drain pipes connected to the drain holes on both sides, allowing water to drain through the drain pipes. Currently, many car ventilation covers have drain pipe outlets installed on the front wheel arch sheet metal. These drain pipes are quite long, requiring multiple bolts, screws, or rivets for installation, and the limited installation space makes them inconvenient. Summary of the Invention
[0003] The purpose of this utility model is to provide an installation structure for a car ventilation cover drain pipe, so as to overcome the problems in the prior art where the fixed position of the drain pipe outlet is too far from the ventilation cover drain outlet and needs to be fixed to the vehicle body by fasteners such as snap fasteners.
[0004] This utility model is achieved by the following technical solution: an installation structure for a drainage pipe of an automotive ventilation cover, comprising a ventilation cover, a drainage pipe, and an inner plate of the front compartment side beam. The ventilation cover is provided with a water flow channel, and drainage holes are respectively provided at both ends of the water flow channel. The drainage holes are connected to the inlet of the drainage pipe. Mounting holes are provided on the inner plate of the front compartment side beam, and the outlet of the drainage pipe is installed on the mounting holes of the inner plate of the front compartment side beam.
[0005] Furthermore, the drain pipe is a square pipe.
[0006] Furthermore, a snap-fit connector is installed at the outlet of the drain pipe. The snap-fit connector has a square annular protrusion on its rear side and multiple wedge-shaped surfaces on the front side of the protrusion. The inner plate of the front cabin side beam is located between the wedge-shaped surfaces and the protrusion.
[0007] Furthermore, the drain pipe is formed by blow molding.
[0008] Furthermore, a drainage grille is installed on the drain outlet of the ventilation cover.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] This invention shortens the length of the drain pipe by changing the installation position of the drain outlet on the ventilation cover, making it easier to arrange the drain pipe inside the vehicle.
[0011] Because the drain pipe of this invention is relatively short, its outlet can be securely fastened to the mounting hole on the front cabin side beam using only its own snap-fit connector. This makes the drain pipe easier to install, unlike the drain pipes on the ventilation cover in the prior art which require the use of snap-fit, bolts, or screws for installation.
[0012] Because the drainage pipe described in this utility model is relatively short, it is blow-molded, which can effectively reduce costs compared to the injection molding used in current drainage pipes. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the present invention;
[0014] Figure 2 This is a partial structural schematic diagram of the present invention;
[0015] Figure 3 This is a partial structural schematic diagram of the drainage pipe described in this utility model.
[0016] In the diagram: 1. Ventilation cover; 2. Drain pipe; 3. Inner panel of the front cabin side beam; 4. Water channel; 5. Drain hole; 6. Mounting hole; 7. Clip connector; 8. Raised edge; 9. Wedge-shaped surface; 10. Drainage grille; 11. Outer panel of the front cabin side beam; 12. Fender. Detailed Implementation
[0017] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort should fall within the scope of protection of this utility model.
[0018] An installation structure for a car ventilation cover drain pipe includes a ventilation cover 1, a drain pipe 2, and a front compartment side beam inner plate 3. The ventilation cover 1 is provided with a water flow channel 4, and the ventilation cover 1 is provided with drain holes 5 at both ends of the water flow channel 4. The drain holes 5 are connected to the water inlet of the drain pipe 2. The front compartment side beam inner plate 3 is provided with an installation hole 6, and the water outlet of the drain pipe 2 is installed on the installation hole 6 of the front compartment side beam inner plate 3.
[0019] The ventilation cover 1 of this utility model is provided with a water channel 4. The water channel 4 can generally adopt a structure that is high in the middle and low at both ends. After water falls onto the ventilation cover 1, it will flow through the water channel 4 to both ends of the water channel 4. When drainage holes 5 are opened at both ends of the water channel 4, the water will flow through the water channel 4 into the drainage holes 5. By installing a drain pipe 2 on the drainage hole 5, the drain pipe 2 can guide the water from the drainage hole 5 to the ground. In this utility model, the outlet of the drain pipe 2 is installed on the inner plate 3 of the front cabin side beam, and the outlet of the drain pipe 2 extends outward from the inner plate 3 of the front cabin side beam, so that the outlet of the drain pipe 2 is between the inner plate 3 and the outer plate 11 of the front cabin side beam. The outer side of the outer plate 11 of the front cabin side beam is the fender 12. The water discharged by the drain pipe 2 flows from between the outer plate 11 and the inner plate 3 of the front cabin side beam to the mudguard on the lower side and then to the ground. This invention shortens the length of the drain pipe 2 by changing the installation position of the drain outlet on the ventilation cover 1, making it easier to arrange inside the vehicle. Because the drain pipe 2 is shorter, its outlet can be securely fastened to the mounting hole 6 on the inner panel 3 of the front compartment side beam using only its own snap-fit connector 7. This makes the drain pipe 2 easier to install, eliminating the need for bolts, screws, or other fasteners as in existing ventilation cover 1 drain pipe installation methods.
[0020] The drainage pipe 2 is a square pipe.
[0021] The outlet of the drain pipe 2 is equipped with a clamping connector 7. The rear side of the clamping connector 7 is provided with a square annular protrusion 8. The clamping connector 7 is provided with multiple wedge-shaped surfaces 9 on the front side of the protrusion 8. The inner plate 3 of the front cabin side beam is between the wedge-shaped surfaces 9 and the protrusion 8.
[0022] The drain pipe 2 described in this utility model is very easy and secure to fix. When fixing, it is only necessary to insert the clamping connector 7 into the mounting hole 6 of the inner plate of the front cabin side beam 3. When inserted, the mounting hole 6 of the inner plate of the front cabin side beam 3 will simultaneously squeeze the wedge-shaped surface 9 on the clamping connector 7. Since both the drain pipe 2 and the clamping connector 7 are made of plastic, they have a certain elastic deformation ability. Therefore, the wedge-shaped surface 9 is compressed inward, and the mounting hole 6 on the inner plate of the front cabin side beam 3 passes through the wedge-shaped surface 9, thereby allowing the mounting hole 6 on the inner plate of the front cabin side beam 3 to be inserted between the wedge-shaped surface 9 and the protrusion 8. When the drain pipe 2 is a square pipe, the clamping connector 7 also adopts a square structure. The mounting hole 6 on the inner plate 3 of the front cabin side beam is a square hole. A wedge-shaped surface 9 is installed on each of the four sides of the clamping connector 7. The maximum vertical distance between two wedge-shaped surfaces 9 that are opposite each other is greater than the height of the mounting hole 6. The maximum horizontal distance between two wedge-shaped surfaces 9 that are opposite each other is greater than the width of the mounting hole 6. The size of the mounting hole 6 is smaller than the size of the protrusion 8. This allows the clamping connector 7 to be securely clamped onto the inner plate 3 of the front cabin side beam.
[0023] The drain pipe 2 is formed by blow molding.
[0024] Because the drain pipe 2 described in this utility model is relatively short, it is blow-molded, which can effectively reduce costs compared to the injection molding used in the current drain pipe 2.
[0025] A drainage grille 10 is installed on the drain outlet of the ventilation cover 1. This invention, by setting the drainage grille 10, can prevent large objects from entering the drain pipe 2, thus serving a filtering function. The drain outlet of the ventilation cover 1 is inserted into the inlet of the drain pipe 2. The drain outlet of the ventilation cover 1 can be connected to the inlet of the drain pipe 2 by means of snap-fit or threaded connection. A sealing ring is also installed between the drain outlet of the ventilation cover 1 and the drain pipe 2 to prevent water from flowing out from between the drain outlet and the drain pipe 2.
Claims
1. An installation structure for a drainage pipe on an automotive ventilation cover, characterized in that, It comprises a ventilation cover plate (1), a drain pipe (2) and a front cabin beam inner plate (3), the ventilation cover plate (1) is provided with a water flow groove (4), the ventilation cover plate (1) is provided with a drain hole (5) at both ends of the water flow groove (4), the drain hole (5) is connected with the water inlet of the drain pipe (2), the front cabin beam inner plate (3) is provided with a mounting hole (6), and the water outlet of the drain pipe (2) is mounted on the mounting hole (6) of the front cabin beam inner plate (3).
2. The installation structure of a drain pipe of a vented floor panel of an automobile according to claim 1, characterized in that, The drain pipe (2) is a square pipe.
3. The mounting structure for a drain of a vented floor panel of an automobile according to claim 1, characterized in that, The water outlet of the drain pipe (2) is provided with a clamping joint (7), the rear side of the clamping joint (7) is provided with a square ring-shaped convex edge (8), the front side of the clamping joint (7) is provided with a plurality of wedge-shaped surfaces (9), and the front cabin beam inner plate (3) is between the wedge-shaped surfaces (9) and the convex edge (8).
4. The mounting structure for a drain of a vented floor panel of an automobile according to claim 1, characterized in that, The drain pipe (2) is blow molded.
5. The mounting structure for a drain of a vented floor panel of an automobile according to claim 1, characterized in that, The drain hole of the ventilation cover plate (1) is provided with a drain grille (10).