Small-space waterproof pressure relief valve for automobiles

Abstract

This application relates to a small-space waterproof pressure relief valve for automobiles, comprising: a cover, an angled door, a transmission assembly, a pressure relief valve assembly, and a drive motor. The cover is suitable for covering the outer wall of an automobile and communicating with the interior of the automobile. The cover has a pressure relief port. The angled door is located outside the cover and is rotatably mounted on the cover, capable of rotating to seal the pressure relief port. The transmission assembly is located inside the cover and is connected to the angled door. The pressure relief valve assembly is positioned at the opening of the cover, corresponding to the angled door. The drive motor is located inside the cover and is connected to the automobile's hydraulic sensor to drive the transmission assembly. The cover has a hollow cuboid structure, with the side having the pressure relief port being the pressure relief side. The pressure relief side is inclined, and the sum of the rotation angle of the angled door and the inclination angle of the pressure relief side is less than or equal to 90 degrees. The reasonable setting of the inclination angle ensures the rotation flexibility and sealing reliability of the angled door, improving the working performance of the pressure relief valve in a small space.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to a small-space waterproof pressure relief valve for automobiles. Background Technology

[0002] During vehicle use, external water may come into contact with the vehicle's exterior walls through various means, while the vehicle's interior needs to maintain a certain pressure balance while preventing water from entering. Existing pressure relief valves, in confined spaces, often struggle to achieve both good waterproofing and effective pressure relief, exhibiting problems such as unreasonable structural design, poor sealing, and low space utilization, failing to meet the demands of vehicles under complex operating conditions. Therefore, there is an urgent need for a structure that can achieve reliable waterproofing and precise pressure relief within limited spaces. Utility Model Content

[0003] In view of this, this application proposes a small-space waterproof pressure relief valve for automobiles.

[0004] To address the issue of traditional tensioning mechanisms occupying space inside the material covering vehicle, this utility model provides a solution comprising: a cover, an angled door, a transmission assembly, a pressure relief valve assembly, and a drive motor.

[0005] The cover is suitable for covering the outer wall of a car and communicating with the interior of the car. The cover has a pressure relief port. The angled door is located outside the cover and is rotatably mounted on the cover. It can be rotated to seal the pressure relief port. The transmission assembly is located inside the cover and is connected to the angled door.

[0006] The pressure relief valve assembly is positioned at the opening of the cover, corresponding to the angled door;

[0007] The drive motor is housed within the cover and connected to the vehicle's hydraulic sensor to drive the transmission assembly;

[0008] The cover has a hollow cuboid structure, and the side with the pressure relief port is the pressure relief side. The pressure relief side is inclined, and the sum of the rotation angle of the angled door and the inclination angle of the pressure relief side is less than or equal to 90 degrees.

[0009] In one possible implementation, the angled door is located outside the cover, and the cross-sectional area of ​​the angled door is larger than the cross-sectional area of ​​the pressure relief port, thus covering the pressure relief port.

[0010] In one possible implementation, the transmission assembly includes: a first connecting rod, a second connecting rod, and an eccentric wheel;

[0011] The motor is connected to the eccentric wheel and drives the eccentric wheel to rotate circumferentially;

[0012] The first connecting rod is a rod-shaped structure, with one end rotatably connected to the eccentric wheel;

[0013] The second connecting rod is a plate-shaped structure, with its corners rotatably connected to the pressure relief port and the other end of the first connecting rod, respectively.

[0014] In one possible implementation, the cover is snapped into the pressure relief valve assembly;

[0015] The pressure relief valve assembly has a snap-fit ​​groove at its edge and a snap-fit ​​protrusion at its edge. The snap-fit ​​protrusion matches the snap-fit ​​groove, and the snap-fit ​​protrusion of the cover is embedded in the snap-fit ​​groove of the pressure relief valve assembly.

[0016] In one possible implementation, the cover is sealed to the vehicle's body sheet metal with a soft rubber seal.

[0017] In one possible implementation, the cross-section of the second link is triangular;

[0018] The angled door is fixedly connected to the side of the second connecting rod;

[0019] One end of the angled door is rotatably connected to the first connecting rod, and the other end is rotatably connected to the cover.

[0020] One possible implementation also includes: a speed reducer and a synchronous drive shaft;

[0021] The reducer and the synchronous drive shaft are disposed within the cover body;

[0022] One end of the synchronous transmission shaft is connected to the center of the eccentric wheel plate, and the other end is connected to the reducer;

[0023] The drive motor is connected to the synchronous transmission shaft via the reducer, driving the eccentric wheel to rotate around the synchronous transmission shaft in the circumferential direction.

[0024] In one possible implementation, the first link is bent at a preset angle;

[0025] One end of the first connecting rod is rotatably connected to the eccentric wheel, and the other end is rotatably connected to the second connecting rod. The bending direction of the first connecting rod is towards the eccentric wheel. When the angled door and the cover are closed, the connection position of the synchronous transmission shaft and the eccentric wheel is located between the connection position of the first connecting rod and the second connecting rod and the connection position of the first connecting rod and the eccentric wheel.

[0026] One possible implementation also includes: a sensor;

[0027] The sensor is suitable for installation at the water level sensing location on the vehicle.

[0028] The sensor is electrically connected to the drive motor and controls the drive motor to turn on and off.

[0029] In one possible implementation, the pressure relief valve assembly corresponds to the pressure relief port.

[0030] The beneficial effects of the automotive small-space waterproof pressure relief valve according to the embodiments of this application are as follows: It makes full use of the limited space by using the inclined pressure relief side of the cover in conjunction with the rotatable angled door to effectively prevent external moisture from entering the car interior when a seal is achieved. Simultaneously, when pressure relief is needed, the drive motor drives the angled door to rotate via the transmission assembly, opening the pressure relief port and promptly balancing the air pressure inside the vehicle. The reasonable setting of the tilt angle ensures the rotational flexibility and sealing reliability of the angled door, improving the working performance of the pressure relief valve in confined spaces.

[0031] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0032] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0033] Figure 1 A cross-sectional schematic diagram of a small-space waterproof pressure relief valve for automobiles according to an embodiment of this application is shown;

[0034] Figure 2 A schematic diagram showing the opening position of a pressure relief valve for a small-space waterproof structure used in automobiles according to an embodiment of this application;

[0035] Figure 3 This invention provides a three-view schematic diagram of the pressure relief valve of a small-space waterproof structure for automobiles in an embodiment of this application when it is open.

[0036] Figure 4 This illustration shows a three-view diagram of the closed position of a small-space waterproof pressure relief valve for automobiles according to an embodiment of this application.

[0037] Figure 5 This diagram shows the main structure of a small-space waterproof pressure relief valve for automobiles according to an embodiment of this application. Detailed Implementation

[0038] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0039] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or 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 utility model.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0042] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0043] like Figures 1-5As shown, the small-space waterproof pressure relief valve for automobiles according to this application embodiment includes: a cover 10, an angled door 30, a transmission assembly, a pressure relief valve assembly, and a drive motor 50. The cover 10 is suitable for covering the outer wall of the automobile and communicating with the interior of the automobile. The cover 10 has a pressure relief port. The angled door 30 is located outside the cover 10 and is rotatably mounted on the cover 10. It can be rotated to seal the pressure relief port. The transmission assembly is located inside the cover 10 and is connected to the angled door 30. The pressure relief valve assembly is located at the opening position of the cover 10 and corresponds to the angled door 30. The drive motor 50 is located inside the cover 10 and is connected to the hydraulic sensor of the automobile to drive the transmission assembly. The cover 10 has a hollow cuboid structure. The side with the pressure relief port is the pressure relief side. The pressure relief side is inclined. The sum of the rotation angle of the angled door 30 and the inclination angle of the pressure relief side is less than or equal to 90 degrees.

[0044] In this specific embodiment, the small space is fully utilized. The inclined pressure relief side of the cover 10, in conjunction with the rotatable angled door 30, effectively prevents external moisture from entering the vehicle interior when a seal is achieved. Simultaneously, when pressure relief is needed, the drive motor 50 rotates the angled door 30 via a transmission assembly, opening the pressure relief port and promptly balancing the air pressure inside the vehicle. The reasonable setting of the tilt angle ensures the rotational flexibility and sealing reliability of the angled door 30, improving the performance of the pressure relief valve within a small space.

[0045] When the angled door 30 is not open, the overall cross-section of the angled door 30 and the cover 10 forms an isosceles right trapezoid. When the angled door 30 is opened, the overall cross-section of the angled door 30 and the cover 10 forms a rectangle. Thus, even when the angled door 30 is normally open, it will not occupy the interior space of the car.

[0046] In one specific embodiment, the angled door 30 is located outside the cover, and the cross-sectional area of ​​the angled door 30 is larger than that of the pressure relief port, thus covering the pressure relief port. The larger cross-sectional area of ​​the angled door 30 allows for more reliable coverage of the pressure relief port, enhancing the sealing effect. Specifically, when the angled door 30 covers the pressure relief port, when water enters the interior of the vehicle's housing, the water provides water pressure to the closed angled door 30, further improving the sealing performance between the angled door 30 and the cover 10.

[0047] In one specific embodiment, the transmission assembly includes a first connecting rod 21, a second connecting rod 23, and an eccentric wheel 22. A motor is driven by the eccentric wheel 22, causing it to rotate circumferentially. The first connecting rod 21 is a rod-shaped structure, with one end rotatably connected to the eccentric wheel 22. The second connecting rod 23 is a plate-shaped structure, with its corners rotatably connected to the pressure relief port and the other end of the first connecting rod 21, respectively. The eccentric wheel 22 converts the motor's circular motion into the reciprocating rotation of the first connecting rod 21 and the second connecting rod 23, precisely controlling the opening and closing angles of the angled door 30. This ensures the pressure relief valve operates reliably and responds quickly during operation, and allows for timely adjustment of the angled door 30's state based on signals from the hydraulic sensor.

[0048] In one specific embodiment, the cover 10 is snapped into the pressure relief valve assembly. The pressure relief valve assembly has a snap-fit ​​groove at its edge, and the cover 10 has a snap-fit ​​protrusion at its edge. The snap-fit ​​protrusion matches the snap-fit ​​groove, and the snap-fit ​​protrusion of the cover 10 is embedded within the snap-fit ​​groove of the pressure relief valve assembly. This snap-fit ​​connection method makes the installation and disassembly of the cover 10 and the pressure relief valve assembly more convenient, improving production and maintenance efficiency. Simultaneously, the snap-fit ​​structure ensures the stability of the connection between the two, ensuring that the pressure relief valve assembly will not loosen due to vibration or other factors during operation, thus guaranteeing the reliability of the entire pressure relief valve structure.

[0049] In one specific embodiment, the cover 10 is sealed to the car body sheet metal with a soft rubber seal. This soft rubber seal enhances the sealing performance between the cover 10 and the car body sheet metal, further improving the pressure relief valve's waterproof capability. It effectively prevents external liquids and gases from penetrating through the installation area, ensuring the safety of the car's interior environment. Simultaneously, the elasticity of the soft rubber can accommodate slight deformations of the car body sheet metal.

[0050] In one specific embodiment, the second connecting rod 23 has a triangular cross-section. The angled door 30 is fixedly connected to the side of the second connecting rod 23. One end of the angled door 30 is rotatably connected to the first connecting rod 21, and the other end is rotatably connected to the cover 10. The triangular cross-section of the second connecting rod 23 improves the structural strength and stability of the transmission assembly, ensuring that it will not deform or break during long-term use, and guaranteeing the reliability of the rotation of the angled door 30. The connection method of the two end corners of the angled door 30 makes its rotation smoother, accurately covering and leaving the pressure relief port, and improving the working accuracy of the pressure relief valve.

[0051] In one specific embodiment, it further includes: a reducer 24 and a synchronous drive shaft 25. The reducer 24 and the synchronous drive shaft 25 are disposed inside the cover 10. One end of the synchronous drive shaft 25 is connected to the center position of the plate surface of the eccentric wheel 22, and the other end is connected to the reducer 24. The drive motor 50 is connected to the synchronous drive shaft 25 through the reducer 24, and drives the eccentric wheel 22 to rotate around the circumferential direction of the synchronous drive shaft 25.

[0052] In one specific embodiment, the first connecting rod 21 is bent at a preset angle. One end of the first connecting rod 21 is rotatably connected to the eccentric wheel 22, and the other end is rotatably connected to the second connecting rod 23. The bending direction of the first connecting rod 21 is towards the eccentric wheel 22. When the angled door 30 and the cover 10 are closed, the connection position of the synchronous transmission shaft 25 and the eccentric wheel 22 is located between the connection position of the first connecting rod 21 and the second connecting rod 23 and the connection position of the first connecting rod 21 and the eccentric wheel 22.

[0053] In this specific embodiment, the connection rotation position between the eccentric wheel 22 and the first connecting rod 21 and the connection position between the second connecting rod 23 and the first connecting rod 21 are located on both sides of the connection position between the eccentric wheel 22 and the synchronous transmission shaft 25, thereby completing the self-locking of the first connecting rod 21 and the second connecting rod 23 relative to the eccentric wheel 22.

[0054] In one specific embodiment, the system further includes a sensor, which is suitable for installation at the water level sensing location on the vehicle. The sensor is electrically connected to the drive motor 50 and controls the opening and closing of the drive motor 50. The addition of the sensor enables the pressure relief valve to have automatic sensing and control functions, allowing it to adjust the state of the angled door 30 in a timely manner according to changes in the water level around the vehicle. When encountering situations such as wading through water, the sensor detects a rise in the water level and automatically controls the drive motor 50 to close the angled door 30, strengthening the seal and preventing water from entering the vehicle. When the water level drops, it automatically opens to relieve pressure, ensuring pressure balance inside the vehicle and improving the safety and reliability of the vehicle in complex environments.

[0055] In one specific embodiment, the pressure relief valve assembly 40 corresponds to the pressure relief port.

[0056] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A small-space waterproof pressure relief valve for automobiles, characterized in that, include: Cover, angled door, transmission assembly, pressure relief valve assembly, and drive motor; The cover is suitable for covering the outer wall of a car and communicating with the interior of the car. The cover has a pressure relief port. The angled door is located outside the cover and is rotatably mounted on the cover. It can be rotated to seal the pressure relief port. The transmission assembly is located inside the cover and is connected to the angled door. The pressure relief valve assembly is positioned at the opening of the cover, corresponding to the angled door; The drive motor is housed within the cover and connected to the vehicle's hydraulic sensor to drive the transmission assembly; The cover has a hollow cuboid structure, and the side with the pressure relief port is the pressure relief side. The pressure relief side is inclined, and the sum of the rotation angle of the angled door and the inclination angle of the pressure relief side is less than or equal to 90 degrees.

2. The pressure relief valve for automobiles with a small-space waterproof structure according to claim 1, characterized in that, The angled door is located outside the cover, and the cross-sectional area of ​​the angled door is larger than the cross-sectional area of ​​the pressure relief port, thus covering the pressure relief port.

3. The pressure relief valve for automobiles with a small-space waterproof structure according to claim 1, characterized in that, The transmission assembly includes: a first connecting rod, a second connecting rod, and an eccentric wheel; The motor is connected to the eccentric wheel and drives the eccentric wheel to rotate circumferentially; The first connecting rod is a rod-shaped structure, with one end rotatably connected to the eccentric wheel; The second connecting rod is a plate-shaped structure, with its corners rotatably connected to the pressure relief port and the other end of the first connecting rod, respectively.

4. The pressure relief valve for automobiles with a small-space waterproof structure according to claim 1, characterized in that, The cover is snapped into the pressure relief valve assembly; The pressure relief valve assembly has a snap-fit ​​groove at its edge and a snap-fit ​​protrusion at its edge. The snap-fit ​​protrusion matches the snap-fit ​​groove, and the snap-fit ​​protrusion of the cover is embedded in the snap-fit ​​groove of the pressure relief valve assembly.

5. The pressure relief valve for automobiles with a small-space waterproof structure according to claim 4, characterized in that, The cover is sealed to the car body sheet metal with soft rubber.

6. The pressure relief valve for automobiles with a small-space waterproof structure according to claim 3, characterized in that, The cross-section of the second connecting rod is triangular. The angled door is fixedly connected to the side of the second connecting rod; One end of the angled door is rotatably connected to the first connecting rod, and the other end is rotatably connected to the cover.

7. The pressure relief valve for automobiles with a small-space waterproof structure according to claim 6, characterized in that, Also includes: Reducer and synchronous drive shaft; The reducer and the synchronous drive shaft are disposed within the cover body; One end of the synchronous transmission shaft is connected to the center of the eccentric wheel plate, and the other end is connected to the reducer; The drive motor is connected to the synchronous transmission shaft via the reducer, driving the eccentric wheel to rotate around the synchronous transmission shaft in the circumferential direction.

8. The pressure relief valve for automobiles with a small-space waterproof structure according to claim 7, characterized in that, The first connecting rod is bent at a preset angle; One end of the first connecting rod is rotatably connected to the eccentric wheel, and the other end is rotatably connected to the second connecting rod. The bending direction of the first connecting rod is towards the eccentric wheel. When the angled door and the cover are closed, the connection position of the synchronous transmission shaft and the eccentric wheel is located between the connection position of the first connecting rod and the second connecting rod and the connection position of the first connecting rod and the eccentric wheel.

9. The pressure relief valve for automobiles with a small-space waterproof structure according to claim 1, characterized in that, Also includes: sensor; The sensor is suitable for installation at the water level sensing location on the vehicle. The sensor is electrically connected to the drive motor and controls the drive motor to turn on and off.

10. The pressure relief valve for automobiles with a small-space waterproof structure according to claim 1, characterized in that, The pressure relief valve assembly corresponds to the pressure relief port.

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