An automobile intake and exhaust valve

Abstract

The utility model discloses an automobile air intake and exhaust valve, include: valve body, circular annular structure, rotation subassembly, eccentric setting in the valve body, the both ends of this rotation subassembly are protruding the outer wall of valve body, eccentric setting the installation position of rotation subassembly deviates the central axis of the center of section circle of valve body, limiting mechanism, set up in the outside of valve body, with the one end of rotation subassembly is connected for limiting the rotation angle of rotation subassembly, and drive rotation subassembly rotates, air intake pipeline, set up in one side of valve body, exhaust pipeline, set up in the other side of valve body, valve plate, fixedly set up on rotation subassembly, drive the rotation of valve plate through rotation subassembly to control the through / close between air intake pipeline and exhaust pipeline. The utility model can solve the problem of the water flow backflow of the traditional air intake and exhaust pipeline under the wading condition.

Description

Technical Field

[0001] This utility model relates to the field of automotive valve technology, and in particular to an automotive intake and exhaust valve. Background Technology

[0002] Traditional gasoline vehicles have their intake and exhaust pipes designed with upward openings, and the openings are positioned higher than the vehicle's chassis to prevent water backflow from causing the internal combustion engine to stall when the vehicle is wading through water; while the intake and exhaust pipes of new hybrid vehicles are located under the vehicle's chassis, resulting in a simpler and more aesthetically pleasing structure.

[0003] Whether it's a traditional gasoline car or a new hybrid car, although there are differences in the design of the intake and exhaust pipes, they cannot solve the problem of water backflow when the vehicle is wading through water and the water level is higher than the intake and exhaust pipes, which can lead to water entering the engine.

[0004] Therefore, there is a need to provide a waterproof automotive intake and exhaust valve that can overcome the problem of water backflow that easily occurs in traditional intake and exhaust pipes when wading through water.

[0005] The statements herein provide only background information relating to this invention and do not necessarily constitute prior art. Utility Model Content

[0006] The purpose of this invention is to provide an automotive intake and exhaust valve that can solve the problem of water backflow that easily occurs in traditional intake and exhaust pipes when wading through water.

[0007] To achieve the above objectives, this utility model provides an automotive intake and exhaust valve, comprising:

[0008] The valve body has a circular ring structure;

[0009] A rotating assembly is eccentrically disposed within the valve body, with both ends of the rotating assembly extending beyond the outer wall of the valve body; the eccentricity refers to the fact that the installation position of the rotating assembly is offset from the central axis of the circle of the cross-section of the valve body.

[0010] A limiting mechanism is disposed outside the valve body and connected to one end of the rotating assembly. It is used to limit the rotation angle of the rotating assembly and drive the rotating assembly to rotate.

[0011] An air inlet pipe is located on one side of the valve body for gas to enter;

[0012] An exhaust pipe is located on the other side of the valve body for exhaust gas discharge;

[0013] The valve plate is fixedly mounted on the rotating assembly. The rotating assembly drives the valve plate to rotate, thereby controlling the opening / closing of the intake pipe and the exhaust pipe.

[0014] Optionally, the vehicle intake and exhaust valves further include:

[0015] A valve actuator is electrically connected to the limiting mechanism to drive the limiting mechanism to rotate, thereby driving the rotation of the rotating assembly and the valve plate on it to rotate.

[0016] A bottom support member is disposed outside the valve body, located on the outer wall of the valve body on the other side opposite to the limiting mechanism, to provide an upward supporting force for the rotating assembly.

[0017] Optionally, the rotating component includes:

[0018] A rotating shaft includes a first end and a second end, the first end being connected to the limiting mechanism and the second end being connected to the bottom support member;

[0019] The upper bushing is fitted onto one end of the rotating shaft near the limiting mechanism to provide radial and axial support for the rotating shaft.

[0020] An elastic component is sleeved outside the rotating shaft and located below the upper shaft sleeve. The deformation of the elastic component provides axial force to the rotating shaft.

[0021] The lower bushing is fitted outside the rotating shaft and located below the elastic component, providing radial and axial support for the rotating shaft.

[0022] Optionally, the rotating assembly further includes: a washer, fitted over the outside of the rotating shaft and located between the upper bushing and the elastic member.

[0023] Optionally, a rotating ball is provided between the pivot and the bottom support.

[0024] Optionally, the valve plate is fixedly mounted on the rotating shaft, and the rotation of the rotating shaft causes the valve plate to rotate around the rotating shaft.

[0025] Optionally, the inner surface of the valve body is a conical surface, which fits tightly with the outer contour surface of the annular side of the valve plate.

[0026] Optionally, the limiting mechanism includes:

[0027] A limiting platform is provided on the outer wall of the valve body, and the rotating component is embedded inside the limiting platform;

[0028] A limiting plate is located above the limiting platform. One end of the limiting plate is connected to the first end of the rotating shaft, and the other end is connected to the valve actuator to control the rotation of the limiting plate.

[0029] Optionally, the limiting plate is provided with a 90° arc-shaped slot near the limiting platform;

[0030] The limiting platform is provided with a limiting block, which is accommodated in the arc-shaped slot to limit the rotation of the limiting plate from 0 to 90°.

[0031] Optionally, the inner wall of the valve body is provided with a stop block, which is used to lock the valve plate when the valve is in the closed state.

[0032] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The automobile intake and exhaust valve provided by this utility model adopts an integrated casting method, which has a low processing cost. The materials used have good corrosion resistance and welding performance, which can ensure that the valve is firmly installed on the exhaust pipe.

[0034] 2. The automotive intake and exhaust valve provided by this utility model has a well-fitting internal shaft system assembly, which effectively reduces the axial and radial movement of the shaft system and enhances the stability of the shaft system.

[0035] 3. The automobile intake and exhaust valve provided by this utility model has effective waterproof performance; specifically, the valve plate and the rotating component are eccentrically set on the valve body. The eccentric design makes the movement trajectory of the valve plate have cam characteristics, which greatly reduces friction and wear during the opening and closing process, and generates a "wedge effect" to enhance the seal when the valve is closed. Attached Figure Description

[0036] Figure 1 This is a cross-sectional structural diagram of the automotive intake and exhaust valve of this utility model;

[0037] Figure 2 This is a schematic diagram of the structure of the rotating component of this utility model;

[0038] Figure 3 This is an axonometric view of the automobile intake and exhaust valves of this utility model when closed;

[0039] Figure 4 This is an axonometric view of the automobile intake and exhaust valves of this utility model when they are open. Detailed Implementation

[0040] The following will be combined with the appendix Figures 1-4The present invention will be further described in detail through preferred embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only for the purpose of conveniently and clearly illustrating the embodiments of the present invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of the present invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by the present invention, should still fall within the scope of the technical content disclosed in the present invention.

[0041] This utility model provides an automotive intake and exhaust valve, such as... Figure 1 As shown, the automotive intake and exhaust valve includes: a valve body 100, which has a circular annular structure; a rotating assembly 400, which is eccentrically disposed within the valve body 100, with both ends of the rotating assembly 400 extending out of the outer wall of the valve body 100; a limiting mechanism 500, disposed outside the valve body 100 and connected to one end of the rotating assembly 400, for driving the rotating assembly 400 to rotate and limiting the rotation angle of the rotating assembly 400; an intake pipe 200, connected to one side of the valve body 100, for gas to enter; and an exhaust pipe 300. A valve plate 700 is connected to the other side of the valve body 100 for exhaust gas discharge; the valve plate 700 is fixedly mounted on the rotating assembly 400, and the rotation of the valve plate 700 is driven by the rotating assembly 400 to control the connection / closure between the intake pipe 200 and the exhaust pipe 300; the bottom support member 600 is disposed outside the valve body 100 and connected to the other end of the rotating assembly 400, that is, located on the outer wall of the valve body 100 on the other side opposite to the limiting mechanism 500, so as to provide an upward supporting force to the rotating assembly 400.

[0042] Because the valve body 100 has a circular structure, its cross-section is circular. The installation position of the rotating component 400 is slightly off-center from the central axis of the circular cross-section of the valve body 100. The valve plate 700 and the rotating component 400 are eccentrically disposed within the valve body 100. The eccentric design makes the movement trajectory of the valve plate 700 exhibit cam characteristics. This design significantly reduces the friction and wear of the valve plate 700 relative to the valve body 100 during the opening / closing process and generates a "wedge effect" to enhance the seal when closed.

[0043] The automotive intake and exhaust valve further includes a valve actuator electrically connected to the limiting mechanism 500 to drive the limiting mechanism 500 to rotate, thereby driving the rotation assembly 400 and the valve plate 700 connected thereto to rotate.

[0044] Among them, such as Figure 2 As shown, the rotating assembly 400 includes: a rotating shaft 410, which has a first end and a second end, the first end being connected to the limiting mechanism 500 and the second end being connected to the bottom support member 600; an upper bushing 420, which is sleeved on the end of the rotating shaft 410 near the limiting mechanism 500, providing radial and axial support for the rotating shaft 410; an elastic member 430, which is sleeved on the outside of the rotating shaft 410 and located below the upper bushing 420, and provides axial force to the rotating shaft 410 through the deformation of the elastic member 430; and a lower bushing 440, which is sleeved on the outside of the rotating shaft 410 and located below the elastic member 430, providing radial and axial support for the rotating shaft 410 while blocking high-temperature exhaust gas.

[0045] Furthermore, the first and second ends of the rotating shaft 410 are respectively provided with protrusions at the points where they contact the annular wall of the valve body 100. These protrusions are embedded in the annular wall of the valve body 100, so that the rotating shaft 410 is relatively fixed, and the lower surface of the lower bushing 440 abuts against the protrusion at the first end.

[0046] The rotating assembly 400 further includes a washer 450, which is sleeved on the outside of the rotating shaft 410 and located between the upper bushing 420 and the elastic member 430.

[0047] Preferably, the elastic component 430 is a plurality of butterfly springs. The washer 450 is a spherical washer; specifically, the side of the washer 450 that contacts the elastic component 430 is a plane, and the side that contacts the upper bushing 420 is a spherical surface. The surface of the upper bushing 420 near the washer 450 is an inclined surface.

[0048] The disc spring is compressed between the upper bushing 420, the washer 450, and the lower bushing 440 to generate upward and downward elastic forces. The upward elastic force can press the washer 450 and the upper bushing 420 together, and the fit between the spherical surface of the washer 450 and the inclined surface of the upper bushing 420 ensures a good sealing effect. The downward elastic force is used to press the lower bushing 440 against the protrusion of the rotating shaft 410 to ensure a tight seal.

[0049] In a specific embodiment of this utility model, the fixed height of the upper bushing 420 relative to the limiting mechanism 500 is adjustable. Different axial forces can be obtained by varying the installation height and adjusting the compression of the disc spring. When the operating environment changes, including changes in gas pressure, ambient temperature, and valve dynamic operation, different axial forces are required to ensure that gas does not leak through the gap between the rotating assembly 400 and the valve body 100.

[0050] Since the lower bushing 440 is closer to the valve body 100, its performance is affected by high-temperature exhaust gas. Therefore, the lower bushing 440 is preferably made of a high-temperature resistant material. Preferably, the lower bushing 440 is made of high-temperature resistant materials such as ceramics or graphite, so it can work in a high-temperature exhaust gas environment of 650℃. Furthermore, ceramic materials have high hardness and strong wear resistance, and graphite materials also have a self-lubricating effect, which can greatly improve the service life of the intake and exhaust valves. The elastic component 430 is made of high-temperature resistant nickel-based alloy or other high-temperature resistant stainless steel.

[0051] Furthermore, a rotating ball 800 is provided between the rotating shaft 410 and the bottom support 600 to allow the rotating shaft 410 to rotate smoothly and reduce wear between the rotating shaft 410 and the bottom support 600. Specifically, the bottom surface of the rotating shaft 410 near the end of the bottom support 600 is provided with a first spherical groove, and the top surface of the bottom support 600 near the side of the rotating shaft 410 is provided with a second spherical groove. The rotating ball 800 is embedded in the spherical groove structure formed by the first spherical groove and the second spherical groove.

[0052] Preferably, the rotating ball 800 is made of high-temperature resistant and wear-resistant materials such as ceramic or graphite.

[0053] The valve plate 700 is fixedly mounted on the rotating shaft 410. The rotation of the rotating shaft 410 causes the valve plate 700 to rotate around the rotating shaft 410.

[0054] Furthermore, the inner surface of the valve body 100 is a conical surface, which can tightly fit with the outer contour surface of the annular side of the valve plate 700 to achieve a seal between the valve plate 700 and the conical surface. Specifically, when the valve plate 700 is rotated to the closed state, the diameter of the inner surface of the valve body 100 is the same as the diameter of the outer contour surface of the valve plate 700, and the taper of the inner surface of the valve body 100 is also the same as the taper of the outer contour surface of the annular side of the valve plate 700.

[0055] The limiting mechanism 500 includes: a limiting platform 520 disposed on the outer wall of the valve body 100, the first end of the rotating shaft 410 being embedded inside the limiting platform 520, and an upper bushing 420, an elastic component 430, and a lower bushing 440 sleeved on the first end; and a limiting disc 510 located above the limiting platform 520, one end of the limiting disc 510 being fixedly connected to the first end of the rotating shaft 410, and the other end being connected to the valve actuator to control the rotation of the limiting disc 510 through the valve actuator.

[0056] Furthermore, such as Figure 3 As shown, the limiting disk 510 has a 90° arc-shaped slot 511 on the side near the limiting platform 520. The limiting platform 520 includes a limiting plane 522 and a limiting block 521. The limiting block 521 is disposed on the limiting plane 522 and is used to limit the rotation angle of the limiting disk 510 relative to the limiting platform 520. When the limiting disk 510 is installed on the limiting platform 520, the limiting block 521 is precisely accommodated within the 90° arc-shaped slot 511, and due to the presence of the 90° arc-shaped slot, the limiting disk 510 can only rotate within the range of 0 to 90° relative to the limiting platform 520.

[0057] Specifically, when the limiting disk 510 is driven by the valve actuator, it begins to rotate. Under the limitation of the limiting block 521, the limiting disk 510 rotates relative to the limiting platform 520 by a range greater than 0° and less than 90°, thereby driving the rotating shaft 410 connected to the limiting disk 510 to rotate, and finally driving the valve plate 700 to rotate within the range of 0 to 90°.

[0058] Furthermore, when the valve actuator controls the limiting disc 510 to rotate until one side of the arc-shaped slot 511 abuts against the limiting block 521, the valve plate 700 is in a closed state, that is, the conical surface of the inner surface of the valve body 100 is in close contact with the outer contour surface of the annular side of the valve plate 700; when the valve actuator controls the limiting disc 510 to rotate in the opposite direction until the other side of the arc-shaped slot 511 abuts against the limiting block 521, the valve plate 700 is in an open state, that is, the conical surface of the inner surface of the valve body 100 is not in contact with the outer contour surface of the side of the valve plate 700, and an airflow channel is formed.

[0059] The automotive intake and exhaust valve provided by this utility model can control the limit mechanism 500 to rotate when the vehicle is in a water-filled state and the water level is higher than the intake and exhaust pipes, causing water backflow. This will drive the rotation of the rotating component 400 and the valve plate 700 connected to it to rotate the valve plate 700 from the open state to the closed state.

[0060] Specifically, when valve plate 700 is in such a state Figure 3 When the valve plate 700 is in the position shown, it is located in the middle of the valve body 100, and the conical surface of the inner surface of the valve body 100 is in close contact with the outer contour surface of the side of the valve plate 700. At this time, the automobile intake and exhaust valves are in the closed state.

[0061] When valve plate 700 is in such a state Figure 4 In the indicated position, the conical surface of the inner surface of the valve body 100 is not in contact with the outer contour surface of the annular side of the valve plate 700, and a certain airflow channel is formed between the valve plate 700 and the valve body 100. At this time, the vehicle's intake and exhaust valves are in the open state. That is, the conical surface of the inner surface of the valve body 100 is separated from the outer contour surface of the side of the valve plate 700, and the vehicle's exhaust gas can be discharged normally through the intake and exhaust valves.

[0062] Furthermore, such as Figure 3 As shown, a stop block 101 is provided on the inner wall of the valve body 100. The stop block 101 is used to lock the valve plate 700 when the valve is closed, so as to prevent the passage between the air intake pipe 200 and the exhaust pipe 300 from being reopened after the valve plate 700 is rotated excessively.

[0063] The intake and exhaust valve is integrally cast by casting the valve body 100, intake pipe 200, exhaust pipe 300 and limiting platform 520. The processing cost is relatively low, and it can maintain corrosion resistance for a long time at high temperature. It has good welding performance and can ensure that the intake and exhaust valve is stably installed on the exhaust pipe.

[0064] In summary, the automotive intake and exhaust valve provided by this utility model has an effective waterproof function, a stable shaft structure, and a longer service life.

[0065] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0066] In the description of this utility model, it should be understood that the terms "center," "height," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0067] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0068] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0069] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. An automotive intake and exhaust valve, characterized in that, include: The valve body (100) has a circular ring structure; A rotating assembly (400) is eccentrically disposed within the valve body (100), with both ends of the rotating assembly (400) extending out of the outer wall of the valve body (100); the eccentricity refers to the fact that the installation position of the rotating assembly (400) is offset from the central axis of the center of the cross-sectional circle of the valve body (100); A limiting mechanism (500) is disposed outside the valve body (100) and connected to one end of the rotating assembly (400). It is used to limit the rotation angle of the rotating assembly (400) and drive the rotating assembly (400) to rotate. An air intake pipe (200) is provided on one side of the valve body (100) for gas to enter; An exhaust pipe (300) is provided on the other side of the valve body (100) for exhaust gas discharge; The valve plate (700) is fixedly mounted on the rotating assembly (400). The rotating assembly (400) drives the valve plate (700) to rotate, thereby controlling the connection / closure between the intake pipe (200) and the exhaust pipe (300).

2. The automotive intake and exhaust valve as described in claim 1, characterized in that, Also includes: A valve actuator is electrically connected to the limiting mechanism (500) to drive the limiting mechanism (500) to rotate, thereby driving the rotation assembly (400) and the valve plate (700) on it to rotate; A bottom support (600) is disposed outside the valve body (100) on the outer wall of the valve body (100) on the other side opposite to the limiting mechanism (500) to provide an upward supporting force to the rotating assembly (400).

3. The automotive intake and exhaust valve as described in claim 2, characterized in that, The rotating assembly (400) includes: A rotating shaft (410) includes a first end and a second end, the first end being connected to the limiting mechanism (500) and the second end being connected to the bottom support (600). An upper bushing (420) is sleeved on one end of the rotating shaft (410) near the limiting mechanism (500) to provide radial and axial support for the rotating shaft (410); An elastic member (430) is sleeved outside the rotating shaft (410) and located under the upper bushing (420). The deformation of the elastic member (430) provides axial force to the rotating shaft (410). The lower bushing (440) is sleeved on the outside of the rotating shaft (410) and located under the elastic member (430), providing radial and axial support for the rotating shaft (410).

4. The automotive intake and exhaust valve as described in claim 3, characterized in that, The rotating assembly (400) further includes a washer (450) sleeved on the outside of the rotating shaft (410) and located between the upper bushing (420) and the elastic member (430).

5. The automotive intake and exhaust valve as described in claim 3, characterized in that, A rotating ball (800) is provided between the rotating shaft (410) and the bottom support (600).

6. The automotive intake and exhaust valve as described in claim 3, characterized in that, The valve plate (700) is fixedly mounted on the rotating shaft (410). The rotation of the rotating shaft (410) causes the valve plate (700) to rotate around the rotating shaft (410).

7. The automotive intake and exhaust valve as described in claim 1, characterized in that, The inner surface of the valve body (100) is a conical surface, which is in close contact with the outer contour surface of the annular side of the valve plate (700).

8. The automotive intake and exhaust valve as described in claim 3, characterized in that, The limiting mechanism (500) includes: A limiting platform (520) is disposed on the outer wall of the valve body (100), and the rotating assembly (400) is embedded inside the limiting platform (520); A limiting plate (510) is located above the limiting platform (520). One end of the limiting plate (510) is connected to the first end of the rotating shaft (410), and the other end is connected to the valve actuator to control the rotation of the limiting plate (510) through the valve actuator.

9. The automotive intake and exhaust valve as described in claim 8, characterized in that, The limiting plate (510) has a 90° arc-shaped slot (511) on the side near the limiting platform (520); The limiting platform (520) is provided with a limiting block (521), which is housed in the arc-shaped slot (511) to restrict the limiting disk (510) from rotating from 0 to 90°.

10. The automotive intake and exhaust valve as described in claim 1, characterized in that, The valve body (100) has a stop (101) on its inner wall, which is used to lock the valve plate (700) when the valve is closed.

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