Automobile intake and exhaust valve

Abstract

The invention discloses an automobile intake and exhaust valve which comprises a valve body of a circular ring structure. The rotating assembly is eccentrically arranged in the valve body, and the two ends of the rotating assembly extend out of the outer wall of the valve body; eccentric arrangement means that the mounting position of the rotating assembly deviates from the central axis of the circle center of the section circle of the valve body. The limiting mechanism is arranged outside the valve body, connected with one end of the rotating assembly and used for limiting the rotating angle of the rotating assembly and driving the rotating assembly to rotate; the air inlet pipeline is arranged on one side of the valve body; the exhaust pipeline is arranged on the other side of the valve body; and the valve plate is fixedly arranged on the rotating assembly, and the rotating assembly drives the valve plate to rotate so as to control connection / disconnection between the air inlet pipeline and the exhaust pipeline. The problem that a traditional air inlet and exhaust pipeline is prone to water flow backward under the wading condition can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile valves, in particular to an automobile intake and exhaust valve. Background Art

[0002] The intake and exhaust ducts of traditional gasoline vehicles are designed to open upwards, and the opening position is higher than the vehicle chassis to prevent the internal combustion engine from stalling due to backflow of water when the vehicle wades through water; while the intake and exhaust ducts of the new hybrid vehicle are arranged under the vehicle chassis, with a simple and beautiful structure.

[0003] Whether it is a traditional gasoline vehicle or a new hybrid vehicle, although there are differences in the design of the intake and exhaust pipes, neither can solve the problem of water backflow when the vehicle is wading and the water level is higher than the intake and exhaust pipes, which in turn causes water to enter the engine.

[0004] Therefore, it is necessary to provide a car intake and exhaust valve with a waterproof function, which can overcome the problem of water backflow that is easy to occur in traditional intake and exhaust pipes when wading in water.

[0005] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. Summary of the Invention

[0006] The purpose of the present invention is to provide an automobile intake and exhaust valve, which can solve the problem of water backflow that is easy to occur in traditional intake and exhaust pipes when wading in water.

[0007] To achieve the above-mentioned object, the present invention provides an automobile 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 eccentric arrangement means that the installation position of the rotating assembly deviates from the central axis of the center of the circular cross-section of the valve body;

[0010] a limiting mechanism, disposed outside the valve body and connected to one end of the rotating assembly, for limiting the rotation angle of the rotating assembly and driving the rotating assembly to rotate;

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

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

[0013] The valve plate is fixedly arranged on the rotating assembly, and the rotating assembly drives the valve plate to rotate to control the connection / closure between the intake pipe and the exhaust pipe.

[0014] Optionally, the automobile intake and exhaust valve further comprises:

[0015] a valve driver 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 thereon;

[0016] The bottom support member is arranged outside the valve body and is located on the outer wall of the valve body on the other side relative to the limiting mechanism to provide an upward supporting force for the rotating assembly.

[0017] Optionally, the rotating assembly includes:

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

[0019] An upper sleeve is sleeved on one end of the rotating shaft close to the limiting mechanism to provide radial and axial support for the rotating shaft;

[0020] an elastic component, sleeved on the outside of the rotating shaft and located below the upper sleeve, and providing axial force to the rotating shaft through deformation of the elastic component;

[0021] The lower shaft sleeve is sleeved on the outside of the rotating shaft and located under the elastic component to provide radial support and axial support for the rotating shaft.

[0022] Optionally, the rotating assembly further includes: a washer, which is sleeved on the outside of the rotating shaft and located between the upper sleeve and the elastic component.

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

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

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

[0026] Optionally, the limiting mechanism includes:

[0027] A limit platform is provided on the outer wall of the valve body, and the rotating assembly is embedded in the limit platform;

[0028] A limit plate is located above the limit platform, one end of the limit plate is connected to the first end of the rotating shaft, and the other end is connected to the valve driver to control the rotation of the limit plate through the valve driver.

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

[0030] The limiting platform is provided with a limiting block, which is accommodated in the arc-shaped slot to limit the limiting disk from rotating within a range of 0 to 90 degrees.

[0031] Optionally, a stopper is provided on the inner wall of the valve body, and the stopper is used to lock the valve plate when the valve is in a 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 the present invention adopts an integrated casting method, which has low processing costs, and the materials used are corrosion-resistant and have good welding properties, which can ensure that the valve is firmly installed on the exhaust pipe.

[0034] 2. The automobile intake and exhaust valve provided by the present invention has good coordination of internal shaft system components, which effectively reduces axial and radial movement of the shaft system, and the shaft system has strong stability.

[0035] 3. The present invention provides an automobile intake and exhaust valve with effective waterproof performance. Specifically, the valve plate and the rotating assembly are eccentrically arranged 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 produces a "wedge effect" when the valve is closed to enhance the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a cross-sectional structural diagram of the automobile intake and exhaust valve of the present invention;

[0037] Figure 2 It is a structural schematic diagram of the rotating assembly of the present invention;

[0038] Figure 3 This is an axial side view of the automobile intake and exhaust valve of the present invention when it is closed;

[0039] Figure 4 This is an axial side view of the automobile intake and exhaust valves of the present invention when they are open. DETAILED DESCRIPTION

[0040] The following will be combined with the attached Figures 1 to 4, the present invention is further described in detail through preferred embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the drawings are in a very simplified form and are not in precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purposes, features and advantages of the present invention more obvious and easy to understand, please refer to the drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention, so they have no technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0041] The present invention provides an automobile intake and exhaust valve, such as Figure 1 As shown, the automobile intake and exhaust valve includes: a valve body 100, which is an annular structure; a rotating assembly 400, which is eccentrically arranged in the valve body 100, and the two ends of the rotating assembly 400 extend out of the outer wall of the valve body 100; a limiting mechanism 500, which is arranged outside the valve body 100 and is connected to one end of the rotating assembly 400, and is used to drive the rotating assembly 400 to rotate and limit the rotation angle of the rotating assembly 400; an intake pipe 200, which is connected to one side of the valve body 100 for gas to enter; an exhaust pipe 300, which is connected to the exhaust pipe 300. It is connected to the other side of the valve body 100 and is used for exhaust gas discharge; the valve plate 700 is fixedly arranged on the rotating component 400, and the rotation of the valve plate 700 is driven by the rotating component 400 to control the connection / closure between the intake pipe 200 and the exhaust pipe 300; the bottom support member 600 is arranged on the outside of the valve body 100 and is connected to the other end of the rotating component 400, that is, it is located on the outer wall of the valve body 100 on the other side relative to the limiting mechanism 500, so as to provide an upward supporting force for the rotating component 400.

[0042] Among them, because the valve body 100 has a circular ring structure, its cross-section is circular; the installation position of the rotating assembly 400 deviates slightly from the central axis of the center of the circular cross-section of the valve body 100, and the valve plate 700 and the rotating assembly 400 are eccentrically arranged in the valve body 100. The eccentric design makes the movement trajectory of the valve plate 700 present a cam characteristic. This design greatly reduces the friction and wear of the valve plate 700 relative to the valve body 100 during the opening / closing process, and produces a "wedge effect" when closing to enhance the seal.

[0043] The automobile intake and exhaust valve further includes: a valve driver 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 includes a first end and a second end, the first end is connected to the limiting mechanism 500, and the second end is connected to the bottom support member 600; an upper sleeve 420, which is sleeved on one end of the rotating shaft 410 close to the limiting mechanism 500, to provide radial support and axial support for the rotating shaft 410; an elastic component 430, which is sleeved on the outside of the rotating shaft 410 and located under the upper sleeve 420, and provides axial force to the rotating shaft 410 through the deformation of the elastic component 430; a lower sleeve 440, which is sleeved on the outside of the rotating shaft 410 and located under the elastic component 430, to provide radial support and axial support for the rotating shaft 410, and at the same time block high-temperature exhaust gas.

[0045] Furthermore, the first end and the second end of the rotating shaft 410 are respectively provided with a protrusion at the annular wall of the valve body 100, and the protrusion is 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 sleeve 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 sleeve 420 and the elastic component 430 .

[0047] Preferably, the elastic component 430 is a plurality of butterfly springs. The washer 450 is a spherical washer. Specifically, the washer 450 has a flat surface on the side that contacts the elastic component 430 and a spherical surface on the side that contacts the upper sleeve 420. The surface of the upper sleeve 420 close to the washer 450 is an inclined surface.

[0048] The butterfly spring is compressed between the upper sleeve 420, the washer 450 and the lower sleeve 440 to generate upward and downward elastic forces; the upward elastic force can press the washer 450 and the upper sleeve 420, and through the cooperation between the spherical surface of the washer 450 and the inclined surface of the upper sleeve 420, the sealing effect is fully guaranteed; the downward elastic force is used to press the lower sleeve 440 and the raised part of the rotating shaft 410 to ensure sealing.

[0049] In a specific embodiment of the present invention, the fixed height of the upper sleeve 420 relative to the stopper mechanism 500 is adjustable. By varying the installation height and adjusting the compression of the butterfly spring, varying axial forces can be achieved. When operating conditions change, including changes in gas pressure, ambient temperature, and valve dynamics, varying 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] The lower sleeve 440 is closer to the valve body 100, and high-temperature exhaust gas can affect its performance. Therefore, the lower sleeve 440 is preferably made of a high-temperature resistant material. Preferably, the lower sleeve 440 is made of a high-temperature resistant material such as ceramic or graphite, so it can operate in a high-temperature exhaust gas environment of 650°C. Ceramic materials have high hardness and strong wear resistance, and graphite materials are self-lubricating, which can greatly extend the service life of the intake and exhaust valves. The elastic component 430 is made of a 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 member 600 to enable the rotating shaft 410 to rotate smoothly and reduce wear between the rotating shaft 410 and the bottom support member 600; specifically, a first spherical groove is provided on the bottom surface of the rotating shaft 410 close to one end of the bottom support member 600, and a second spherical groove is provided on the top surface of the bottom support member 600 close to the rotating shaft 410; 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 ceramics or graphite.

[0053] The valve plate 700 is fixedly disposed on the rotating shaft 410 , and the rotation of the rotating shaft 410 drives 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 that tightly mates with the outer contour 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 a closed position, the diameter of the inner surface of the valve body 100 is the same as the diameter of the outer contour 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 of the annular side of the valve plate 700.

[0055] In which, the limiting mechanism 500 includes: a limiting platform 520, which is arranged on the outer wall of the valve body 100, and the first end of the rotating shaft 410 is embedded in the limiting platform 520, and the upper shaft sleeve 420, the elastic component 430, and the lower shaft sleeve 440 are sleeved on the end; a limiting plate 510, which is located above the limiting platform 520, and one end of the limiting plate 510 is fixedly connected to the first end of the rotating shaft 410, and the other end is connected to the valve driver to control the rotation of the limiting plate 510 through the valve driver.

[0056] Further, if Figure 3 As shown, a 90° arc-shaped slot opening 511 is provided on one side of the limit plate 510 close to the limit platform 520. The limit platform 520 comprises: a limit plane 522 and a limit block 521. The limit block 521 is provided on the limit plane 522, and is used to limit the rotation angle of the limit plate 510 relative to the limit platform 520. When the limit plate 510 is mounted on the limit platform 520, the limit block 521 is just accommodated in the 90° arc-shaped slot opening 511, and due to the existence of the 90° arc-shaped slot opening, the limit plate 510 can only rotate within the range of 0 to 90° relative to the limit platform 520.

[0057] Specifically, when the limit plate 510 is driven by the valve driver, it starts to rotate, and under the limitation of the limit block 521, the limit plate 510 rotates relative to the limit platform 520 by more than 0° and less than 90°, thereby driving the rotation of the rotating shaft 410 connected to the limit plate 510, and finally driving the valve plate 700 to rotate within the range of 0 to 90°.

[0058] Further, when the valve driver controls the limit plate 510 to rotate until one side of the arc-shaped slot 511 abuts against the limit 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 tightly fitted with the outer contour surface of the annular side of the valve plate 700; when the valve driver controls the limit plate 510 to rotate in the opposite direction until the other side of the arc-shaped slot 511 abuts against the limit 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 fitted with the outer contour surface of the side of the valve plate 700, and an air flow channel is formed.

[0059] The automobile intake and exhaust valve provided by the present invention can, when the vehicle is in a wading state and the water level is higher than the intake and exhaust pipes and water backflow occurs, control the rotation of the limiting mechanism 500 through the valve driver, thereby driving the rotation of the rotating assembly 400 and the valve plate 700 connected thereto to rotate the valve plate 700 in the open state to the closed state.

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

[0061] When the valve plate 700 is in the Figure 4 In the position shown, the conical surface of the inner surface of the valve body 100 and the outer contour of the annular side of the valve plate 700 do not align, forming a certain airflow channel 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 and the outer contour of the side of the valve plate 700 are separated from each other, allowing vehicle exhaust to be discharged normally through the intake and exhaust valves.

[0062] Further, if Figure 3 As shown, a stopper 101 is provided on the inner wall of the valve body 100, and the stopper 101 is used to lock the valve plate 700 when the valve is in a closed state to prevent the passage between the intake pipe 200 and the exhaust pipe 300 from being reopened after the valve plate 700 rotates excessively.

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

[0064] In summary, the automobile intake and exhaust valve provided by the present invention 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 "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0066] In the description of the present invention, it should be understood that the terms "center," "height," "thickness," "up," "down," "vertical," "horizontal," "top," "bottom," "inside," "outside," "axial," "radial," "circumferential," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0067] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0068] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in 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 is not intended to limit the present invention. After reading the above description, various modifications and substitutions of the present invention will become apparent to those skilled in the art. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. An automobile intake and exhaust valve, characterized in that: include: The valve body (100) is an annular structure; A rotating assembly (400) is eccentrically arranged in the valve body (100), with both ends of the rotating assembly (400) extending out of the outer wall of the valve body (100); the eccentric arrangement means that the installation position of the rotating assembly (400) deviates from the central axis of the center of the circular cross-section of the valve body (100); a limiting mechanism (500), disposed outside the valve body (100), connected to one end of the rotating assembly (400), for limiting the rotation angle of the rotating assembly (400) and driving the rotating assembly (400) to rotate; An air inlet pipe (200), 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) and is used for exhausting exhaust gas; The valve plate (700) is fixedly mounted on the rotating assembly (400), and 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 automobile intake and exhaust valve according to claim 1, characterized in that: Also includes: a valve driver 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) thereon to rotate; The bottom support member (600) is arranged outside the valve body (100) and is located on the outer wall of the valve body (100) on the other side relative to the limiting mechanism (500) to provide an upward supporting force for the rotating assembly (400).

3. The automobile intake and exhaust valve according to claim 2, characterized in that: The rotating assembly (400) comprises: a rotating shaft (410), comprising a first end and a second end, wherein the first end is connected to the limiting mechanism (500), and the second end is connected to the bottom support member (600); An upper shaft sleeve (420) is sleeved on one end of the rotating shaft (410) close to the limiting mechanism (500) to provide radial support and axial support for the rotating shaft (410); An elastic component (430) is sleeved on the outside of the rotating shaft (410) and located below the upper sleeve (420), and provides an axial force to the rotating shaft (410) through deformation of the elastic component (430); The lower shaft sleeve (440) is sleeved on the outside of the rotating shaft (410) and located under the elastic component (430), providing radial support and axial support for the rotating shaft (410).

4. The automobile intake and exhaust valve according to claim 3, characterized in that: 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 sleeve (420) and the elastic component (430).

5. The automobile intake and exhaust valve according to claim 3, characterized in that: A rotating ball (800) is provided between the rotating shaft (410) and the bottom supporting member (600).

6. The automobile intake and exhaust valve according to claim 3, characterized in that: The valve plate (700) is fixedly arranged on the rotating shaft (410), and the rotation of the rotating shaft (410) drives the valve plate (700) to rotate around the rotating shaft (410).

7. The automobile intake and exhaust valve according to claim 1, characterized in that: The inner surface of the valve body (100) is a conical surface, and the conical surface is tightly matched with the outer contour surface of the annular side of the valve plate (700).

8. The automobile intake and exhaust valve according to claim 3, characterized in that: The limiting mechanism (500) comprises: A limiting platform (520) is provided on the outer wall of the valve body (100), and the rotating assembly (400) is embedded in 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 driver to control the rotation of the limiting plate (510) through the valve driver.

9. The automobile intake and exhaust valve according to claim 8, characterized in that: The limiting plate (510) is provided with a 90° arc-shaped slot opening (511) on the side close to the limiting platform (520); The limiting platform (520) is provided with a limiting block (521), and the limiting block (521) is accommodated in the arc-shaped slot opening (511) to limit the limiting disk (510) from rotating within a range of 0 to 90 degrees.

10. The automobile intake and exhaust valve according to claim 1, characterized in that: A stopper (101) is provided on the inner wall of the valve body (100), and the stopper (101) is used to lock the valve plate (700) when the valve is in a closed state.

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