Drainage mechanism and vehicle

Abstract

The application relates to the technical field of passenger car body drainage, and provides a drainage mechanism and a vehicle. According to the drainage mechanism provided by the application, airflow forms a Venturi effect in a wind collecting path, and forms a negative pressure in a second section. On this basis, since the second section is communicated with a drainage groove, an atmospheric pressure difference is formed between the outside atmospheric pressure and the environment in the second section, so that water in the drainage groove is sucked into the second section and is blown into a third section along with the wind from the first section, and then flows to a collecting cavity. The drainage mechanism realizes a Venturi pneumatic negative pressure drainage mode, utilizes driving airflow to generate stable negative pressure, realizes active water sucking operation on the drainage groove, and avoids a series of problems such as backflow and sheet metal corrosion caused by the fact that accumulated water in the drainage groove cannot be drained.

Description

Technical Field

[0001] This application relates to the field of bus body drainage technology, and in particular to a drainage mechanism and vehicle. Background Technology

[0002] Currently, the drainage channels on the roof and sides of buses generally use shallow gravity-fed drainage, which is simple in structure and low in cost, but has obvious drawbacks. Objectively speaking, the drainage channels are generally shallow in depth and have a small slope, which results in slow water flow and easy accumulation and blockage of mud, sand, and debris. When the vehicle is in motion, there is often negative pressure on the outside of the A-pillar, causing rainwater to be unable to drain and backflow. Moreover, the water that cannot be drained in time remains inside the pillar for a long time, causing sheet metal corrosion and making the structure prone to freezing and cracking in winter, requiring frequent manual maintenance. Summary of the Invention

[0003] In view of this, this application provides a drainage mechanism and vehicle, with the aim of solving the above-mentioned technical problems to a certain extent.

[0004] A drainage mechanism according to an embodiment of this application is used in a vehicle, the vehicle including a roof and side panels, both the roof and side panels being provided with drainage grooves, the drainage mechanism comprising: An air-collision assembly, comprising an air-collecting component and a collecting component, wherein the air-collecting component has an air-collecting path and the collecting component has a collecting chamber communicating with the external environment; The air collection path includes a first section, a second section, and a third section connected in sequence. The cross-sectional area of ​​the second section is smaller than that of the first section and the third section. The second section is connected to the drainage trough. The first section is directed toward the front of the vehicle. The third section is connected to the collection chamber.

[0005] Based on the above technical solutions, optionally, the air collection component is disposed inside the vehicle.

[0006] Optionally, based on any of the above technical solutions, the collection chamber is located inside the vehicle.

[0007] Optionally, based on any of the above technical solutions, the vehicle has a B-pillar, and the collection chamber is disposed within the B-pillar.

[0008] Optionally, based on any of the above technical solutions, the drainage mechanism further includes a check valve and a pipeline, the pipeline being used to connect the drainage trough and the second section, the check valve being disposed within the pipeline, and the check valve being used to unidirectionally guide the pipeline from the drainage trough to the second section.

[0009] Optionally, based on any of the above technical solutions, the drainage mechanism further includes a filter element disposed within the pipeline, the filter element being used to filter the fluid flowing from the drainage trough to the second section.

[0010] Optionally, based on any of the above technical solutions, the drainage mechanism further includes a filter element and a pipeline, the pipeline being used to connect the drainage tank and the second section, the filter element being disposed within the pipeline, and the filter element being used to filter the fluid flowing from the drainage tank to the second section.

[0011] Optionally, based on any of the above technical solutions, the first segment has an air intake opening, the first segment extends along a horizontal direction, and the air intake opening is inclined relative to the horizontal direction.

[0012] Based on any of the above technical solutions, optionally, the second segment includes a contraction segment, a straight segment, and a diffusion segment arranged sequentially along the direction from the first segment to the third segment, wherein the cross-sectional area of ​​the contraction segment gradually decreases, the cross-sectional area of ​​the diffusion segment gradually increases, and the cross-sectional area of ​​the straight segment is smaller than the cross-sectional area of ​​the first segment and the cross-sectional area of ​​the third segment.

[0013] According to a second aspect of the present application, a vehicle is provided, the vehicle including the drainage mechanism described above.

[0014] According to the drainage mechanism provided in this application, since the air intake path has a second section with a smaller cross-sectional area in the middle than the first and third sections, there is airflow flowing from the first section to the second section and then to the third section. Because the second section, with its smaller cross-sectional area, is located between the first and third sections, the airflow creates a Venturi effect, resulting in negative pressure within the second section. Furthermore, since the second section is connected to the drainage trough, a pressure difference is created between the external atmospheric pressure and the environment within the second section. This causes water from the drainage trough to be drawn into the second section and blown into the third section by the airflow from the first section, eventually flowing into the collection chamber.

[0015] According to the drainage mechanism provided in this application, a Venturi pneumatic negative pressure drainage method is realized. By using the airflow of the vehicle to generate a stable negative pressure, the water is actively sucked into the drainage channel, avoiding a series of problems such as backflow and sheet metal corrosion caused by water accumulation in the drainage channel.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a drainage mechanism provided according to an embodiment of this application is shown.

[0019] Figure 2 It shows Figure 1 A schematic diagram of the AA section.

[0020] Figure 3 It shows Figure 1 A schematic diagram of the BB cross section.

[0021] Figure label: 100 - Air intake component; 110 - First section; 120 - Second section; 121 - Contraction section; 122 - Straight section; 123 - Diffusion section; 130 - Third section; 200 - Collection component; 210 - Collection chamber; 300 - Piping; 310 - Horizontal section; 320 - Guide section; 400 - Drainage trough; 500 - Filter screen; 600 - Check valve. Detailed Implementation

[0022] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0026] According to a first aspect of the embodiments of this application, a drainage mechanism is provided, which will be described below in conjunction with... Figures 1 to 3 Describe in detail the structure and working principle of the drainage system.

[0027] According to the embodiments of this application, the drainage mechanism is used in a vehicle, which includes a roof and side panels. Both the roof and side panels are provided with drainage channels 400. The drainage mechanism includes a wind-collision component and a collection component 200.

[0028] In an embodiment, the air-collision assembly includes an air-collecting component 100 and a collecting component 200. The air-collecting component 100 has an air-collecting path, and the collecting component 200 has a collecting cavity 210 that communicates with the external environment.

[0029] Specifically, the air intake path includes a first segment 110, a second segment 120, and a third segment 130 connected in sequence. At least a portion of the cross-sectional area of ​​the second segment 120 is smaller than that of the first segment 110 and the third segment 130. The second segment 120 is connected to the drainage channel 400. The first segment 110 is directed toward the front of the vehicle. The third segment 130 is connected to the collection chamber 210.

[0030] Thus, according to the drainage mechanism provided in this application embodiment, since the air intake path has a second section 120 with a cross-sectional area smaller than that of the first section 110 and the third section 130, there is airflow in the air intake path from the first section to the second section and then to the third section 130. Because the second section 120, with its smaller cross-sectional area, is located between the first section 110 and the third section 130, the airflow in the air intake path forms a Venturi effect, creating negative pressure within the second section 120. Based on this, since the second section 120 is connected to the drainage trough 400, a pressure difference is created between the external atmospheric pressure and the environment within the second section 120, causing water in the drainage trough 400 to be drawn into the second section 120 and blown into the third section 130 by the wind from the first section 110, and then flows towards the collection chamber 210.

[0031] Thus, the drainage mechanism provided in this application embodiment realizes the Venturi pneumatic negative pressure drainage method, which uses the airflow of the vehicle to generate a stable negative pressure, and realizes the active water suction operation of the drainage groove 400, avoiding a series of backflow and sheet metal corrosion problems caused by the inability to drain water in the drainage groove 400.

[0032] In an embodiment, as an example, the air intake path can be, for example, a tubular air intake passage. According to the above description, the first segment 110 can be, for example, an air intake segment, and is cylindrical. The second segment 120 can include two parts: a conical segment connected to the first segment 110, which gradually tapers towards the direction of the third segment 130; the second part of the second segment 120, located between the conical segment and the third segment 130, can also be cylindrical, with a diameter smaller than that of the first segment 110, thus having a smaller cross-sectional area; the third segment 130 is also cylindrical and directly connected to the second part of the second segment 120.

[0033] In this embodiment, since the third segment 130 is connected to the collection chamber 210 and the collection chamber 210 is connected to the external environment, the airflow can carry the accumulated water and atomize it, which is then carried into the collection chamber 210 via the third segment 130.

[0034] According to the drainage mechanism provided in this application embodiment, the air intake component 100 is disposed inside the vehicle. Here, as an example, the air intake component 100 can be a tubular structure as a whole and can be embedded inside the vehicle, for example, embedded inside the A-pillar. The extending direction of the air intake component 100 can be, for example, the front-rear direction of the vehicle, and can be arranged horizontally. Disposing the air intake component 100 inside the vehicle can effectively increase the reliability of the air intake component 100, while reducing the space occupied by the drainage mechanism.

[0035] According to the drainage mechanism provided in this application embodiment, the collection chamber 210 is located inside the vehicle, thereby effectively increasing the reliability of the air intake component 100 and reducing the space occupied by the drainage mechanism. Here, a drainage channel can be provided at the bottom of the collection chamber 210, and the bottom opening of the drainage channel can be provided on the vehicle body to drain accumulated water.

[0036] According to the drainage mechanism provided in the embodiments of this application, in the embodiments, the vehicle has a B-pillar, and the collection chamber 210 is disposed in the B-pillar. The drainage channel that is already present in the B-pillar in the prior art can be used to communicate with the collection chamber 210, or the drainage channel can be directly used as the collection chamber 210 to reduce the amount of modification to the original structure of the vehicle.

[0037] According to the drainage mechanism provided in the embodiments of this application, the drainage mechanism may further include a check valve 600 and a pipeline 300. The pipeline 300 is used to connect the drainage tank 400 and the second section 120. The check valve 600 is disposed in the pipeline 300 and is used to unidirectionally guide the pipeline 300 from the drainage tank 400 to the second section 120. As an example, the check valve 600 can be a one-way valve, which helps to prevent water from accidentally flowing back into the drainage tank 400.

[0038] According to the drainage mechanism provided in the embodiments of this application, the drainage mechanism may further include a filter element. The filter element may be disposed in the pipe 300. The filter element is used to filter the fluid flowing from the drainage tank 400 to the second section 120 to prevent impurities from flowing into the second section 120 and causing blockage. Preferably, the filter element may be disposed at the opening between the pipe 300 and the drainage tank 400 to prevent impurities from entering the pipe 300. The filter element may be, for example, a filter screen 500.

[0039] According to the drainage mechanism provided in the embodiments of this application, the first section 110 has an air intake opening. The first section 110 extends along the horizontal direction, and the air intake opening is inclined relative to the horizontal direction, thereby increasing the air intake area.

[0040] Based on the technical solutions described above, according to the drainage mechanism provided in the embodiments of this application, the drainage channels 400 on the top and side of the vehicle can be shallow channels already installed in existing vehicles. The lowest point of the front end of the shallow channel can be provided with the above-mentioned pipe 300. The pipe 300 as a whole can serve as a water collection well, having a horizontal section 310 extending in a horizontal direction, and a longitudinal guide section 320 extending in a vertical direction.

[0041] In this embodiment, the horizontal section 310 of the water collection well is used to connect to the shallow foundation trench mentioned above, and therefore has an opening. A filter screen 500 structure, such as a filter cover, is installed at the opening to prevent the water collection well and the air intake component 100 from becoming clogged.

[0042] In this embodiment, the air intake component 100 can actually be integrated with the A-pillar itself, and therefore can be considered as being directly installed on the A-pillar. For example, the first section 110, the second section 120, and the third section 130 can be installed on the outer panel of the A-pillar. As mentioned above, the first section 110, the second section 120, and the third section 130 together achieve the Venturi effect, and therefore, the three sections as a whole are essentially a Venturi tube structure. The Venturi air inlet is located in the first section 110, and the Venturi exhaust outlet is located in the third section 130.

[0043] In this embodiment, the second segment 120 has a constriction segment 121, which is a tapered segment. From the first segment 110 towards the third segment 130, the diameter gradually decreases, resulting in a gradually decreasing cross-sectional area. The second segment 120 also has a throat, which is a straight segment 122 of uniform diameter, located after the constriction segment 121. The second segment 120 may further include a diffusion segment 123, which has a similar shape to the constriction segment 121, also being a tapered segment, but its diameter increases towards the third segment 130, thereby gradually increasing the cross-sectional area.

[0044] In this embodiment, a negative pressure is generated in the throat, and the pipe 300 is connected to the drain trough 400. A one-way valve is further provided in the pipe 300 as a check valve structure to prevent water that has flowed into the throat from flowing towards the drain trough 400 in case of an accident.

[0045] As an example, the collection chamber 210 can be an existing vehicle, i.e., the B-pillar cavity already installed in a bus. During operation, the airflow enters the intake, accelerates through the contraction section 121, and forms a strong negative pressure at the throat, drawing in and atomizing rainwater from the drainage channel. This water is then discharged with the airflow from the exhaust port of the diffuser section 123 into the B-pillar cavity. As an example, the one-way valve can also be an active solenoid valve, which can be closed by the vehicle controller when the vehicle is parked to prevent exhaust fumes, dust, or insects from entering the pipe 300.

[0046] According to a second aspect of the embodiments of this application, a vehicle is provided, which includes the drainage mechanism described above and also has the aforementioned beneficial effects, which will not be repeated here. Here, as an example, the vehicle may be, for example, a passenger car.

[0047] The above are merely preferred embodiments of this application and do not limit the scope of protection of this application. Any equivalent structural transformations made based on the innovative concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A drainage mechanism, characterized in that, The drainage mechanism is used in a vehicle, the vehicle including a roof and side panels, both the roof and side panels being provided with drainage grooves, the drainage mechanism comprising: An air-collision assembly, comprising an air-collecting component and a collecting component, wherein the air-collecting component has an air-collecting path and the collecting component has a collecting chamber communicating with the external environment; The air collection path includes a first segment, a second segment, and a third segment connected in sequence. At least a portion of the cross-sectional area of ​​the second segment is smaller than that of the first segment and the third segment. The second segment is connected to the drainage trough. The first segment is directed toward the front of the vehicle. The third segment is connected to the collection chamber.

2. The drainage mechanism according to claim 1, characterized in that, The air intake component is located inside the vehicle.

3. The drainage mechanism according to claim 1, characterized in that, The collection chamber is located inside the vehicle.

4. The drainage mechanism according to claim 3, characterized in that, The vehicle has a B-pillar, and the collection chamber is located inside the B-pillar.

5. The drainage mechanism according to claim 1, characterized in that, The drainage mechanism further includes a check valve and a pipeline. The pipeline is used to connect the drainage trough and the second section. The check valve is disposed in the pipeline and is used to allow one-way flow of the pipeline from the drainage trough to the second section.

6. The drainage mechanism according to claim 5, characterized in that, The drainage mechanism further includes a filter element disposed within the pipeline, the filter element being used to filter the fluid flowing from the drainage trough to the second section.

7. The drainage mechanism according to claim 1, characterized in that, The drainage mechanism further includes a filter element and a pipe. The pipe is used to connect the drainage tank and the second section. The filter element is disposed in the pipe and is used to filter the fluid flowing from the drainage tank to the second section.

8. The drainage mechanism according to claim 1, characterized in that, The first segment has an air intake opening, the first segment extends in a horizontal direction, and the air intake opening is inclined relative to the horizontal direction.

9. The drainage mechanism according to any one of claims 1 to 8, characterized in that, The second segment includes a contraction segment, a straight segment, and a diffusion segment arranged sequentially along the direction from the first segment to the third segment. The cross-sectional area of ​​the contraction segment gradually decreases, the cross-sectional area of ​​the diffusion segment gradually increases, and the cross-sectional area of ​​the straight segment is smaller than the cross-sectional area of ​​the first segment and the cross-sectional area of ​​the third segment.

10. A vehicle, characterized in that, The vehicle includes a drainage mechanism as described in any one of claims 1 to 9.

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