Waterproof opening and closing function air intake pipe

Abstract

This utility model discloses a waterproof air intake pipe with an opening and closing function, belonging to the field of automotive parts technology. The key technical points are: it includes an air intake pipe body with an airflow channel inside; its features include: a driving component and a baffle on the air intake pipe body; the baffle is rotatably disposed within the airflow channel and is used to isolate the airflow channel; the driving component drives the baffle to rotate, causing the baffle to isolate the airflow channel or to keep the airflow channel in a normally open state; the baffle is provided with an annular seal made of elastic material; a positioning step is provided within the airflow channel; when the baffle isolates the airflow channel, the annular seal abuts against the positioning step and forms a seal; several annular sealing protrusions are provided on the contact surface between the annular seal and the positioning step; these annular sealing protrusions are all inclined and deformable, and are arranged along the radial direction of the annular seal; thus, the air intake pipe has superior waterproof performance.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, and specifically relates to a waterproof air intake pipe with opening and closing function. Background Technology

[0002] The main function of a car engine's air intake manifold is to deliver clean, dry, sufficient, and stable air to the engine to meet its needs.

[0003] Chinese patent CN218816700U discloses a waterproof air intake pipe for an automobile engine, including an air intake pipe, a baffle plate fixedly installed on the bottom of the inner wall of the air intake pipe near the air intake port, a drain pipe fixedly installed on the bottom of one side of the air intake pipe, a water tank fixedly installed at the lower end of the drain pipe, a miniature submersible pump fixedly installed on one side of the bottom surface of the inner wall of the water tank, one end of a flexible hose fixedly connected to the outlet of the miniature submersible pump, the other end of the flexible hose located outside the water tank, and a liquid level sensor fixedly installed on the bottom surface of the inner wall of the water tank.

[0004] The above technical solution has the following drawbacks: The waterproof air inlet pipe has a water baffle plate fixedly installed on the bottom of the inner wall of the air inlet pipe near the air inlet. When water enters the air inlet pipe, the water flow will be bounced in the opposite direction due to inertia and the obstruction of the water baffle plate, which can change the direction of water flow. In addition, the water flow is not easily splashed to the left side due to the inclined setting of the water baffle plate. However, this design can only block liquid water. In a humid environment, moisture in the air can still pass freely with the airflow, which will have an adverse effect and has certain limitations. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a waterproof air inlet pipe with opening and closing function. The technical problem to be solved by this utility model is: how to further improve the waterproof performance.

[0006] The above-mentioned technical objective of this utility model can be achieved through the following technical solution: a waterproof opening and closing function air inlet pipe, including an air inlet pipe body, an airflow channel inside the air inlet pipe body, a driving component and a baffle on the air inlet pipe body, the baffle being rotatably disposed in the airflow channel, the baffle being used to isolate the airflow channel, the driving component being used to drive the baffle to rotate, so that the baffle isolates the airflow channel or keeps the airflow channel in a normal open state, the baffle being provided with an annular sealing component, the annular sealing component being made of elastic material, a positioning step being provided inside the airflow channel, when the baffle isolates the airflow channel, the annular sealing component abuts against the positioning step and forms a seal, a plurality of annular sealing protrusions are provided on the contact surface between the annular sealing component and the positioning step, the plurality of annular sealing protrusions are all inclined and deformable, and the plurality of annular sealing protrusions are arranged along the radial direction of the annular sealing component.

[0007] In the aforementioned waterproof opening and closing function air inlet pipe, an annular mounting groove is provided on the baffle, and the annular seal is snapped into the annular mounting groove.

[0008] In the aforementioned waterproof opening and closing function air inlet pipe, an annular positioning protrusion is provided in the annular mounting groove, and a positioning ring groove adapted to the positioning protrusion is provided on the annular seal, with the annular positioning protrusion inserted into the positioning ring groove.

[0009] In the aforementioned waterproof opening and closing function air inlet pipe, the cross-section of the annular positioning protrusion is trapezoidal.

[0010] In the aforementioned waterproof opening and closing function air inlet pipe, an annular groove is provided on the contact surface between the annular seal and the baffle.

[0011] In the aforementioned waterproof opening and closing function air inlet pipe, the driving component includes an electric actuator, the baffle has a rotating shaft, and the output end of the electric actuator is splinedly engaged with the rotating shaft.

[0012] In the aforementioned waterproof opening and closing function air inlet pipe, the cross-section of several of the annular sealing protrusions is triangular.

[0013] In the aforementioned waterproof opening and closing function air intake pipe, a maintenance port is provided on the main body of the air intake pipe, and a cover is bolted to the main body of the air intake pipe. The cover is used to seal the maintenance port, and sealant is filled between the cover and the main body of the air intake pipe.

[0014] In the aforementioned waterproof air inlet pipe with opening and closing function, a transparent observation window is provided on the cover. A filter plate and an adsorption plate for adsorbing water vapor are detachably arranged in sequence along the airflow direction in the airflow channel. The filter plate and the adsorption plate can be observed through the transparent observation window.

[0015] In the aforementioned waterproof opening and closing function air inlet pipe, the baffle is provided with an adsorption layer for adsorbing water vapor on the surface of the inlet of the air inlet pipe body. An annular collection groove is provided inside the air inlet pipe body. The annular collection groove is located between the filter plate and the adsorption plate. A sensing probe is provided at the lowest point of the annular collection groove. The sensing probe is used to detect the moisture in the annular collection groove in real time. The sensing probe is electrically connected to the driving component.

[0016] In summary, the beneficial effects of this utility model compared to the prior art are as follows:

[0017] During normal use, the baffle is driven to rotate by the drive component, so that the airflow channel is in the normal open state. When not in use, the baffle is driven to rotate by the drive component, so that the baffle blocks the airflow channel. The annular seal abuts against the positioning step in the airflow channel to form a seal, thereby effectively preventing liquid water and moisture in the air from passing through the airflow channel with the gas, thus further improving the waterproof performance of the air intake pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1;

[0019] Figure 2 This is a partial structural schematic diagram of Embodiment 1;

[0020] Figure 3 This is a cross-sectional view of Embodiment 1;

[0021] Figure 4 This is a partial cross-sectional view of Embodiment 1;

[0022] Figure 5 for Figure 4 Enlarged view of part A;

[0023] Figure 6 This is a cross-sectional view of Example 2.

[0024] Reference numerals: 1. Intake pipe body; 2. Airflow channel; 3. Drive component; 4. Baffle; 5. Annular seal; 6. Positioning step; 7. Annular sealing protrusion; 8. Annular mounting groove; 9. Annular positioning protrusion; 10. Positioning ring groove; 11. Annular groove; 12. Rotating shaft; 13. Maintenance port; 14. Cover; 15. Filter plate; 16. Adsorption plate; 17. Adsorption layer; 20. Transparent observation window; 18. Annular collection groove; 19. Sensor probe. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] Waterproof air intake pipe with opening and closing function, such as Figures 1 to 5 As shown, it includes an air intake pipe body 1, an airflow channel 2 inside the air intake pipe body 1, a driving component 3 and a baffle 4 on the air intake pipe body 1, the baffle 4 is rotatably disposed in the airflow channel 2, and the baffle 4 is used to isolate the airflow channel 2.

[0027] Specifically, in this embodiment, the drive component 3 includes an electric actuator, and the baffle 4 has a rotating shaft 12. The output end of the electric actuator is splined with the rotating shaft 12. It should be noted that the splined connection between the output end of the electric actuator and the rotating shaft 12 ensures efficient and stable power transmission and facilitates the separation of the baffle 4 from the electric actuator, making it easy to quickly disassemble and maintain in the future.

[0028] The driving component 3 is used to drive the baffle 4 to rotate, so that the baffle 4 isolates the airflow channel 2 or keeps the airflow channel 2 in a normal open state. That is, when in normal use, the gas can pass through the airflow channel 2 smoothly, while when not in use, the baffle 4 isolates the airflow channel 2, thereby preventing liquid water and moisture in the air from passing through the airflow channel 2 with the gas.

[0029] Furthermore, the baffle 4 is provided with an annular seal 5, which is made of elastic material. A positioning step 6 is provided in the airflow channel 2. When the baffle 4 blocks the airflow channel 2, the annular seal 5 and the positioning step 6 abut against each other and form a seal. Through the sealing effect formed by the abutment of the annular seal 5 and the positioning step 6, the waterproof performance is further improved, and moisture is prevented from penetrating through with the gas.

[0030] Preferably, the annular seal 5 is made of rubber to ensure that the annular seal 5 and the positioning step 6 are always tightly fitted in the sealed state, thus ensuring the stability and reliability of the seal.

[0031] Furthermore, several annular sealing protrusions 7 are provided on the contact surface between the annular seal 5 and the positioning step 6. These annular sealing protrusions 7 are all inclined and deformable. They are arranged along the radial direction of the annular seal 5. It should be noted that when the annular seal 5 and the positioning step 6 abut against each other, the inclined annular sealing protrusions 7 deform and fit against the positioning step 6, thereby forming multiple seals radially, which can significantly improve the sealing performance and enhance the waterproof performance.

[0032] In this embodiment, there are three annular sealing protrusions 7, but the number can be increased appropriately without any specific limitation. Preferably, the cross-section of each of the annular sealing protrusions 7 is triangular, because the sharp structure of the triangle can further enhance the sealing effect and effectively prevent gas or liquid from penetrating.

[0033] Since the annular seal 5 is made of elastic material, it will age as the service time increases, which will have an adverse effect on the seal. Therefore, in this embodiment, the annular seal 5 is installed by opening an annular mounting groove 8 on the baffle 4 and snapping the annular seal 5 into the annular mounting groove 8. This ensures the relative stability between the annular seal 5 and the baffle 4 and facilitates the disassembly and replacement of the annular seal 5 in the future.

[0034] Specifically, an annular positioning protrusion 9 is provided in the annular mounting groove 8, and a positioning ring groove 10 adapted to the positioning protrusion is provided on the annular seal 5. The annular positioning protrusion 9 is inserted into the positioning ring groove 10, and the cross-section of the annular positioning protrusion 9 is trapezoidal.

[0035] It should be noted that the annular positioning protrusion 9 is inserted into the positioning ring groove 10 to ensure the relative stability of the annular seal 5 and the baffle 4. Moreover, since the cross-section of the annular positioning protrusion 9 is trapezoidal, the guiding effect of the inclined surface of the trapezoidal structure during the process of inserting the annular positioning protrusion 9 into the positioning ring groove 10 can effectively reduce jamming and resistance during the assembly process, making the assembly easier and smoother for the operator. This can effectively reduce the assembly difficulty of the two components, and the trapezoidal structure can further improve the stability of the two components after assembly, thereby improving the reliability of the structure.

[0036] An annular groove 11 is provided on the contact surface between the annular seal 5 and the baffle 4. The annular groove 11 is provided on the opposite surface of the contact surface between the annular seal 5 and the positioning step 6. By providing the annular groove 11, not only can the material consumption of the annular seal 5 be reduced, but the contact area between the annular seal 5 and the baffle 4 is also reduced, which facilitates the disassembly and maintenance of the annular seal 5. Moreover, it is more conducive to the adaptive deformation of the annular seal 5 when it comes into contact with the positioning step 6 for sealing.

[0037] The intake pipe body 1 has a maintenance port 13. A cover 14 is bolted to the intake pipe body 1. The cover 14 is used to cover the maintenance port 13. The bolted connection not only ensures the stable connection between the intake pipe body 1 and the cover 14, but also facilitates the disassembly and assembly of the cover 14 in the future. The cover 14 can be disassembled later to perform maintenance work on the baffle 4 and the annular seal 5 through the maintenance port 13.

[0038] The cover 14 and the air intake pipe body 1 are filled with sealant to ensure a tight seal between them. Example

[0039] The difference between Example 2 and Example 1 is that, as Figure 6 As shown, a filter plate 15 and an adsorption plate 16 for adsorbing water vapor are detachably arranged in sequence along the airflow direction in the airflow channel 2. When the gas passes through the filter plate 15, the filter plate 15 traps impurities, and when the gas passes through the adsorption plate 16, the adsorption plate adsorbs the moisture carried by the gas.

[0040] A transparent observation window 20 is provided on the cover 14, through which the filter plate 15 and the adsorption plate 16 can be observed. Based on the information observed from the transparent observation window 20, the user can more accurately determine when the filter plate 15 and the adsorption plate 16 need to be maintained or replaced.

[0041] An annular collection groove 18 is provided inside the main body 1 of the air intake pipe. The annular collection groove 18 is located between the filter plate 15 and the adsorption plate 16. A sensing probe 19 is provided at the lowest point of the annular collection groove 18. The sensing probe 19 can be a humidity sensor. The sensing probe 19 is used to detect the moisture in the annular collection groove 18 in real time. The sensing probe 19 is electrically connected to the driving component 3. When the sensing probe 19 detects that the moisture content exceeds the preset threshold, it triggers the driving component 3 to drive the baffle 4 to rotate and cut off the airflow channel 2, so as to prevent moisture from continuously passing through the airflow channel 2.

[0042] The surface of the baffle 4 relative to the inlet of the air intake pipe body 1 is provided with an adsorption layer 17 for adsorbing water vapor. The adsorption layer 17 adsorbs water vapor, thereby preventing water vapor from accumulating on the baffle 4 in a humid environment.

[0043] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model; those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A waterproof air intake pipe with opening and closing function, comprising an air intake pipe body (1), wherein the air intake pipe body (1) has an airflow channel (2), characterized in that: The intake pipe body (1) is provided with a drive unit (3) and a baffle (4). The baffle (4) is rotatably disposed in the airflow channel (2). The baffle (4) is used to block the airflow channel (2). The drive unit (3) is used to drive the baffle (4) to rotate, so that the baffle (4) blocks the airflow channel (2) or keeps the airflow channel (2) in a normal open state. The baffle (4) is provided with an annular seal (5). The annular seal (5) is made of elastic material. The airflow channel (2) is provided with a positioning step (6). When the baffle (4) blocks the airflow channel (2), the annular seal (5) abuts against the positioning step (6) and forms a seal. Several annular sealing protrusions (7) are provided on the contact surface between the annular seal (5) and the positioning step (6). The several annular sealing protrusions (7) are all inclined and deformable. The several annular sealing protrusions (7) are arranged along the radial direction of the annular seal (5).

2. The waterproof inlet pipe with opening and closing function according to claim 1, characterized in that: The baffle (4) is provided with an annular mounting groove (8), and the annular seal (5) is snapped into the annular mounting groove (8).

3. The waterproof inlet pipe with opening and closing function according to claim 2, characterized in that: The annular mounting groove (8) is provided with an annular positioning protrusion (9), and the annular seal (5) is provided with a positioning ring groove (10) that matches the positioning protrusion. The annular positioning protrusion (9) is inserted into the positioning ring groove (10).

4. The waterproof inlet pipe with opening and closing function according to claim 3, characterized in that: The cross-section of the annular positioning protrusion (9) is trapezoidal.

5. The waterproof inlet pipe with opening and closing function according to claim 4, characterized in that: An annular groove (11) is provided on the contact surface between the annular seal (5) and the baffle (4).

6. The waterproof inlet pipe with opening and closing function according to any one of claims 1, 2, 3, 4, or 5, characterized in that: The drive unit (3) includes an electric actuator, and the baffle (4) has a rotating shaft (12), the output end of which is splinedly engaged with the rotating shaft (12).

7. The waterproof inlet pipe with opening and closing function according to any one of claims 1, 2, 3, 4, or 5, characterized in that: The cross-sections of several of the annular sealing protrusions (7) are all triangular.

8. The waterproof inlet pipe with opening and closing function according to any one of claims 1, 2, 3, 4, or 5, characterized in that: The intake pipe body (1) has a maintenance port (13) and a cover (14) is bolted to the intake pipe body (1). The cover (14) is used to cover the maintenance port (13) and the cover (14) and the intake pipe body (1) are filled with sealant.

9. The waterproof inlet pipe with opening and closing function according to claim 8, characterized in that: A transparent observation window (20) is provided on the cover (14). A filter plate (15) and an adsorption plate (16) for adsorbing water vapor are detachably arranged in the airflow channel (2) along the airflow direction. The filter plate (15) and the adsorption plate (16) can be observed through the transparent observation window (20).

10. The waterproof inlet pipe with opening and closing function according to claim 9, characterized in that: The baffle (4) is provided with an adsorption layer (17) for adsorbing water vapor on the surface of the inlet of the air intake pipe body (1). An annular collection groove (18) is provided inside the air intake pipe body (1). The annular collection groove (18) is located between the filter plate (15) and the adsorption plate (16). A sensing probe (19) is provided at the lowest point of the annular collection groove (18). The sensing probe (19) is used to detect the moisture in the annular collection groove (18) in real time. The sensing probe (19) is electrically connected to the drive unit (3).

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