Engine oil covering cap assembly capable of preventing engine oil emulsification, engine and vehicle

Abstract

The engine oil covering cap assembly comprises an engine oil covering cap, an engine oil opening and a valve plate, the valve plate is arranged on the engine oil opening, and when the engine oil opening is sealed by the engine oil covering cap, the valve plate is in a horizontal state and shields the bottom of the engine oil covering cap; when the engine oil opening cover is separated from the engine oil opening, the valve plate is in an inclined state, the engine oil opening is partially opened, engine oil in the cylinder head cover can be prevented from splashing into the engine oil opening cover, and therefore emulsion on the engine oil opening cover is prevented from being generated.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an oil cap assembly for preventing oil emulsification, an engine and a vehicle. Background Art

[0002] The engine oil cap is a seal for the oil filling port, usually located on the top of the engine and connected to the inside of the crankcase. In winter, when the ambient temperature is low, the engine is not fully warmed up after a short-distance run. The oil cap is located on the top of the engine and has a low temperature. When the water vapor in the crankcase contacts the oil cap, it is cooled, and condensed water gathers inside the oil cap and mixes with the oil attached to the oil cap to form an emulsion.

[0003] Generally, the oil cap is in the shape of a "door", with a large internal space, which makes it easy for more emulsions to accumulate inside. This generally does not affect the normal operation of the engine, but it will reduce the customer experience and cause misjudgment by after-sales maintenance personnel. The existing solution is to fix a flat baffle at the bottom of the oil cap, so that the oil cap forms a "mouth" structure as a whole, sealing the inside. This solution only solves the problem of internal emulsion accumulation, but more emulsions will still accumulate at the bottom of the flat baffle. Utility Model Content

[0004] The utility model provides an oil port cover assembly for preventing engine oil from emulsifying, thereby preventing emulsions from gathering on the oil port cover.

[0005] The utility model also provides an engine with the oil port cover assembly for preventing the oil from emulsifying.

[0006] The oil port cover assembly for preventing oil emulsification according to the first aspect of the utility model comprises an oil port cover, an oil port, and a valve plate, wherein the valve plate is arranged on the oil port. When the oil port cover closes the oil port, the valve plate is in a horizontal state, and the valve plate completely covers the bottom of the oil port cover; when the oil port cover is separated from the oil port, the valve plate is in an inclined state, partially opening the oil port.

[0007] The oil port cover assembly for preventing oil emulsification according to the embodiment of the utility model has at least the following beneficial effects: the valve plate is not fixedly mounted at the bottom of the oil port cover, but is rotatably mounted on the oil port. When the oil port cover is screwed into the oil port, the valve plate is in a horizontal state, which can prevent the oil in the cylinder head cover from splashing into the oil port cover, thereby avoiding the generation of emulsions in the oil port cover. When the oil port cover is screwed out of the oil port (i.e., the oil port cover is separated from the oil port), the valve plate moves to an inclined state, and the oil splashed on its bottom surface flows back to the oil pan under the action of gravity, while not affecting the oil filling. When the oil port cover is screwed back, the oil port cover will press the valve plate, and the valve plate will return to its position, and finally basically fit with the bottom of the oil port cover, covering the bottom of the oil port cover.

[0008] As an optional embodiment, the valve plate is rotatably arranged in the oil port by a rotating shaft, and the rotating shaft is located at a position far away from the center of the valve plate. Through the rotating connection of the rotating shaft, the state can be quickly changed as the oil port cover is screwed in and out, and the rotating shaft is far away from the center of the valve plate, and the opening of the valve plate is increased, which can ensure that the oil is added more smoothly.

[0009] As an optional embodiment, the oil port is further provided with a bracket, which is located below the valve plate and is configured to limit the opening of the valve plate. When the oil port cover is screwed out, the valve plate opens, and the bracket can prevent the valve plate from swinging back and forth due to inertia, thereby quickly and accurately limiting the opening of the valve plate.

[0010] As an optional embodiment, the valve plate is rotatably arranged in the oil port via a rotating shaft, and an elastic member is also arranged in the oil port, one end of the elastic member is connected to the valve plate, and the other end is fixedly mounted on the side wall of the oil port.

[0011] As an optional embodiment, a receiving groove is provided on the side wall of the oil port, and the rotating shaft is located in the receiving groove.

[0012] As an optional embodiment, the bracket includes a supporting portion and a limiting portion, the supporting portion fixes the rotating shaft in the accommodating groove, the limiting portion is located below the valve plate, and the limiting portion is configured to abut against the limiting portion when the valve plate opens the engine oil port.

[0013] As an optional embodiment, the valve plate is located at the lower end of the oil port, which is convenient for assembly and does not affect the sealing depth of the oil port cover.

[0014] As an optional embodiment, a gap is provided between the valve plate and the side wall of the oil port, and the width of the gap is 0.5mm-1mm. On the one hand, a gap of appropriate size prevents the valve plate from getting stuck during movement, and prevents oil and gas from entering when the gap is too large.

[0015] Additional aspects of the present invention will be partly given in the following description and partly become apparent from the following description or learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 A partial schematic diagram of an oil cap assembly for preventing oil emulsification in an engine provided by an embodiment of the utility model;

[0018] Figure 2 A three-dimensional schematic diagram of an oil filler cap in an oil filler cap assembly provided by an embodiment of the utility model;

[0019] Figure 3A schematic diagram of the oil filler cap in the oil filler cap assembly provided by the embodiment of the utility model in another direction;

[0020] Figure 4 A schematic diagram of an oil filler cap in the related art;

[0021] Figure 5 It is another structural schematic diagram of an oil filler cap in the related art;

[0022] Figure 6 A schematic cross-sectional structure diagram of an oil filler cap assembly provided by an embodiment of the utility model;

[0023] Figure 7 A schematic diagram of the assembly structure of a valve plate, a bracket and a support frame in an oil port cover assembly in an engine provided by an embodiment of the utility model;

[0024] Figure 8 A schematic diagram of the three-dimensional structure of the oil port cover assembly in the engine provided by the embodiment of the utility model in which the valve plate is in an open state;

[0025] Fig. 9 A schematic diagram of the structure of the valve plate from an open state to a closed state provided in an embodiment of the utility model;

[0026] Fig.10 A schematic diagram of the three-dimensional structure of the oil port cover assembly in the engine provided by the embodiment of the utility model in a closed state of the valve plate;

[0027] Fig.11 Another cross-sectional structural schematic diagram of the oil filler cap assembly provided in an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 200, engine; 201, cylinder head cover; 202, oil port; 203, valve plate; 204, bracket; 2041, limiter;

[0030] 2042, support portion; 205, elastic member;

[0031] 100. Oil filler cap; 101. Sealing plug; 102. Cover body; 103. Operating unit. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The present application embodiment provides an engine, which can be referred to Figure 1 As shown, the engine 200 may include a cylinder head cover 201, and an oil port 202 is provided on the cylinder head cover 201. The oil port 202 is provided with an oil port cover 100, and the oil port cover 100 can open or close the oil port 202. Therefore, the oil port cover 100 is located on the engine cylinder head cover 201 and is used to cover the oil port 202. The connection method between the oil port cover and the oil port is not limited here, and can be threaded connection, insertion fit, etc.

[0038] See also Figure 2As shown, the oil port cover 100 may include a connected sealing plug 101, a cover body 102, and an operating portion 103, wherein the sealing plug 101 may be located inside the oil port 202 and seal the oil port 202, the cover body 102 may be located outside the oil port 202, and the operating portion 103 is used by an operator to screw the oil port cover 100 into or out of the oil port 202. Of course, in some examples, the structure of the oil port cover 100 is not limited to the following. Figure 2 The structure shown may include the sealing plug 101 and the cover body 102 , or may include the sealing plug 101 and the operating portion 103 .

[0039] See also Figure 3 As shown, the interior of the sealing plug 101 of the oil filler cap 100 may be a hollow structure. Of course, in some examples, the sealing plug 101 of the oil filler cap 100 may also be a solid structure.

[0040] In the related art, the structure of the oil cap 100 can also be as follows Figure 4 As shown, the bottom of the oil filler cap 100 has a cavity 11a inside, and the top is a gripping portion 10a. Since the engine's oil filler cap serves as a seal for the oil filler, it is generally arranged at the top of the engine and communicates with the inside of the crankcase. In the winter when the ambient temperature is relatively low, the engine that runs for a short distance is not fully warmed up. The oil filler cap is located at the top of the engine and the temperature is relatively low. When the water vapor in the crankcase contacts the oil filler cap, it is cooled, and condensed water gathers inside the oil filler cap. The oil in the cylinder head of the engine will splash to the bottom of the oil filler cap. In this way, the condensed water mixes with the oil attached to the oil filler cap to form an emulsion. Since the bottom of the oil filler cap has a cavity and a large space, it is easy for more emulsions to gather at the bottom of the oil filler cap. When the oil filler cap is removed, the emulsion attached to the oil filler cap may cause misjudgment by maintenance personnel. For this reason, some technicians have improved the oil filler cap. For example, you can refer to Figure 5 As shown, the provided oil filler cap 10b is provided with a baffle 11b at the bottom, which solves the problem of emulsion accumulation in the cavity at the bottom end of the oil filler cap 10b, but a lot of emulsion will still gather on the bottom surface of the baffle 11b. When the oil filler cap 10b is taken out, there will still be a lot of emulsion on the baffle 11b at the bottom of the oil filler cap.

[0041] Therefore, in order to solve the problem of emulsion accumulation on the oil port cover, the embodiment of the present application proposes a solution, by setting a valve plate in the oil port, the valve plate and the oil port cover cooperate with each other, which can be referred to Figure 6 As shown, when the oil port cover 100 is located in the oil port 202, the valve plate 203 can be rotated to a horizontal state (see Fig. 9 or Fig.10), and the valve plate 203 and the bottom of the oil port cover 100 can be basically fitted, or the valve plate 203 completely covers the bottom of the oil port cover 100, so that when the oil in the engine splashes, the oil and condensed water are not easy to adhere to the bottom of the oil port cover 100 under the blocking effect of the valve plate 203, thereby avoiding the formation of emulsions at the bottom of the oil port cover 100; when the oil port cover 100 is screwed out of the oil port 202, the valve plate 203 can be rotated to an inclined state under the action of gravity or external force. In this state, the oil splashed on the bottom of the valve plate 203 flows back to the oil pan under the action of gravity, and the partial oil port 202 is opened, so that the engine oil can be added to the engine, which does not affect the oil filling. The bottom of the oil port cover 100 will not gather emulsions due to the shielding of the valve plate 203. Therefore, the solution provided in the embodiment of the present application avoids the formation of emulsions at the bottom of the oil port cover 100, and solves the problem that the oil port cover 100 is prone to gather emulsions, resulting in poor user experience and easy misjudgment in maintenance.

[0042] The utility model provides an oil cap assembly, an engine and a vehicle for preventing oil emulsification, which are described in detail below.

[0043] like Figure 6 and Figure 7 As shown, the utility model provides an oil port cover assembly for preventing oil emulsification, including an oil port cover 100, an oil port 202, and a valve plate 203. The valve plate 203 is rotatably arranged in the oil port 202 by means of a rotating shaft 2031. The valve plate 203 is arranged so that when the oil port cover 100 closes the oil port 202, the valve plate 203 and the bottom of the oil port cover 100 can be basically fitted, and the valve plate is in a horizontal state. The valve plate 203 completely blocks the bottom of the oil port cover 100. For example, the positive projection of the valve plate 203 toward the oil port cover 100 completely covers the bottom of the oil port cover 100. In this way, under the blocking effect of the valve plate 203, the oil and condensed water are not easily attached to the bottom of the oil port cover 100. When the oil port cover 100 is separated from the oil port 202 (for example, the oil port cover 100 is screwed out of the oil port 202), the valve plate 203 is in an inclined state, partially opening the oil port 202 to achieve the filling of the oil.

[0044] The shape of the valve plate 203 may be circular, elliptical, etc. The valve plate 203 may be a butterfly valve structure.

[0045] Therefore, the utility model provides an oil port cover assembly for preventing oil emulsification, by arranging a valve plate 203 in the oil port 202, the valve plate 203 cooperates with the oil port cover 100, so that when the oil port cover 100 is located in the oil port 202, the valve plate 203 can be rotated to a horizontal state (see Fig. 9 or Fig.10), and the valve plate 203 and the bottom of the oil port cover 100 can be basically fitted, or the valve plate 203 completely covers the bottom of the oil port cover 100, so that when the oil in the engine splashes, the oil and condensed water are not easy to adhere to the bottom of the oil port cover 100 under the blocking effect of the valve plate 203, thereby avoiding the formation of emulsions at the bottom of the oil port cover 100; when the oil port cover 100 is screwed out of the oil port 202, the valve plate 203 can be rotated to an inclined state under the action of gravity or external force (see Figure 8 As shown in the figure, the oil splashed on the bottom of the valve plate 203 flows back to the oil pan under the action of gravity, and the partial oil port 202 is opened, so that the oil can be added to the engine, which does not affect the oil filling. The bottom of the oil port cover 100 will not gather emulsions due to the shielding of the valve plate 203. Therefore, the solution provided in the embodiment of the present application avoids the formation of emulsions at the bottom of the oil port cover 100, and solves the problem that the oil port cover 100 is prone to gather emulsions, resulting in poor user experience and easy misjudgment in maintenance.

[0046] In a possible implementation, when the valve plate 203 is rotatably disposed at the oil port 202 via the rotating shaft 2031, the position of the rotating shaft 2031 will affect the inclination of the valve plate 203. Therefore, in the embodiment of the present application, the rotating shaft 2031 is disposed at a position away from the center of the valve plate 203, for example, Figure 7 As shown, the rotating shaft 2031 may be located at the side of the valve plate 203 close to the side wall of the oil port 202 and away from the center of the valve plate 203 , which is conducive to the valve plate 203 rotating to a tilted state.

[0047] When the valve plate 203 is rotatably disposed at the oil port 202 via the rotating shaft 2031, two receiving grooves (not shown) may be provided on the side wall of the oil port 202, one end of the rotating shaft 2031 is connected to the valve plate 203, and the other end of the rotating shaft 2031 is rotatably disposed in the receiving groove. The shape of the receiving groove is not limited, and may be a space in which the rotating shaft 2031 is placed and the rotating shaft 2031 is rotatable, and may be circular, elliptical, or a combination of an arc and a rectangle.

[0048] It should be noted that the number of the rotating shaft 2031 can be one or two. When the number of the rotating shaft 2031 is one, the rotating shaft 2031 is disposed on the valve plate 203, and the two ends of the rotating shaft 2031 are respectively disposed in two receiving grooves correspondingly provided on the side wall of the oil port 202. When the number of the rotating shaft 2031 is two, one end of each rotating shaft 2031 is connected to the valve plate 203, and the other end is disposed in rotation in the receiving groove.

[0049] The length of the shaft 2031 inserted into the receiving groove is not limited, as long as the shaft 2031 can be stably placed in the receiving groove without falling out of the receiving groove and fits the space around the engine oil port. According to the opening requirement of the valve plate 203, the shaft 2031 can be installed at a position slightly deviated from the center of the valve plate 203, or at a position of the valve plate 203 close to the side wall of the engine oil port. Considering that the larger the engine oil port is opened, the better when the engine oil is added, the shaft 2031 is fixed at a position of the valve plate 203 close to the side wall of the engine oil port.

[0050] In one possible implementation, see Figure 6 and Figure 7 As shown, the oil port 202 is also provided with a bracket 204, and the bracket 204 is provided below the valve plate 203, and the bracket 204 is on the same side as the rotating shaft 2031. One end of the bracket 204 is fixedly mounted on the side wall of the oil port, and the other end extends toward the center of the valve plate 203, and the position of this end is closer to the center of the valve plate 203 than the rotating shaft 2031. By providing the bracket 204, the valve plate 203 can be prevented from shaking several times due to inertia during the opening process. Under the action of the bracket 204, the opening of the valve plate 203 can be quickly and accurately limited, and the vibration of the cylinder head cover caused by shaking can be avoided.

[0051] The bracket 204 may also be on a different side from the rotating shaft 2031 , with one end fixed to the side wall of the oil port and the other end extending toward the center of the valve plate 203 , with the point of its projection onto the valve plate 203 being within the diameter of the valve plate 203 .

[0052] Working process: When the oil cap is not screwed into the oil port, refer to Fig. 9 As shown, the valve plate 203 is in an inclined state when in a free state, and the bracket 204 supports the valve plate 203 at a certain opening; when the oil port cover is screwed into the oil port, it gradually contacts the valve plate 203, and a force F is applied to the valve plate 203. Under the action of the force F, the valve plate 203 is driven to rotate to a horizontal state, and the valve plate 203 fits with the bottom of the oil port cover 100, as shown in FIG. Fig.10 As shown, the end of the oil port 202 facing the inside of the engine is closed by the valve plate 203 to prevent the oil from splashing into the inside of the oil port cover 100; when the oil needs to be added, the oil port cover 100 is opened, and the valve plate 203 is rotated to a tilted state to facilitate the oil filling, while the oil splashed at the bottom drips due to gravity.

[0053] like Figure 7As shown, the bracket 204 includes a support portion 2042 and a limiting portion 2041. The shape of the support portion 2042 matches the shape of the valve plate 203. The support portion 2042 is installed in a receiving groove provided on the side wall of the engine oil port 202, wherein the receiving groove is connected to the receiving groove for receiving the end of the rotating shaft 2031. The upper surface of the support portion 2042 contacts the rotating shaft 2031, and the support portion 2042 fixes the rotating shaft 2031 in the receiving groove. One end of the limiting portion 2041 is fixed to the support portion 2042, and the other end extends toward the central axis of the engine oil port 202 and is located below the valve plate 203. The limiting portion 2041 is configured to abut against the limiting portion 2041 when the valve plate 203 opens the engine oil port.

[0054] In another possible implementation, the bracket 204 may not be provided, and an elastic member may be further included for limiting and supporting. For example, see Fig.11 As shown, it can also include: an elastic member 205, the valve plate 203 is rotatably set in the oil port through the rotating shaft 2031, the rotating shaft 2031 is fixed to the valve plate 203 and is set away from the center of the valve plate 203, and the two ends of the rotating shaft 2031 are installed in two accommodating grooves opened on the side wall of the oil port, one end of the elastic member 205 is connected to the valve plate 203, and the other end is fixedly installed on the side wall of the oil port, and the installation position of the elastic member 205 is located below the position of the accommodating groove.

[0055] In the embodiment of the present application, the elastic member 205 may be a spring, or the elastic member 205 may be a flexible member with elasticity, or the elastic member 205 may be a spring sheet or elastic member with elastic deformation formed by bending or structural improvement.

[0056] In the embodiment of the present application, when the oil port cover is screwed into the oil port, it gradually contacts the valve plate 203, exerts a force on the valve plate 203, and drives the valve plate 203 to rotate to a horizontal state under the action of the force, and the valve plate 203 fits with the bottom of the oil port cover 100. At this time, the elastic member 205 can be in a stretched state; when the oil needs to be added, the oil port cover 100 is opened, and the valve plate 203 rotates to an inclined state under the elastic force of the elastic member 205. Or in another implementation, when the valve plate 203 fits with the bottom of the oil port cover 100, the elastic member 205 can be in a compressed state; when the oil port cover 100 is opened, the elastic member 205 in a compressed state rotates the valve plate 203 to an inclined state under the action of the elastic force.

[0057] In one possible implementation, a gap is provided between the valve plate 203 and the side wall of the oil port 202, specifically a gap between the edge of the valve plate 203 and the side wall of the oil port 202, and the width of the gap may be 05mm-1mm, for example, 0.5mm or 0.75mm or 1mm, etc., so that the valve plate 203 and the oil port 202 will not get stuck. The smaller the gap, the better the effect of preventing the oil from splashing into the oil port cover 100.

[0058] An embodiment of the present application also provides an engine, comprising an oil cap assembly for preventing oil emulsification according to any of the above embodiments.

[0059] An embodiment of the present application also provides a vehicle, including an engine having an oil cap assembly for preventing oil emulsification according to any of the above embodiments.

[0060] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. An oil cap assembly for preventing oil emulsification, comprising an oil cap and an oil port, characterized in that: It also includes a valve plate, which is arranged on the oil port. The valve plate is arranged so that when the oil port cover closes the oil port, the valve plate is in a horizontal state and the valve plate completely covers the bottom of the oil port cover; when the oil port cover is separated from the oil port, the valve plate is in an inclined state and partially opens the oil port.

2. The oil cap assembly for preventing oil emulsification according to claim 1, characterized in that: The valve plate is rotatably arranged in the oil port via a rotating shaft, and the rotating shaft is located at a position away from the center of the valve plate.

3. The oil cap assembly for preventing oil emulsification according to claim 2, characterized in that: The oil port is further provided with a bracket, the bracket is located below the valve plate, and the bracket is configured to limit the opening of the valve plate for rotation.

4. The oil cap assembly for preventing oil emulsification according to claim 1, characterized in that: The valve plate is rotatably arranged in the oil port via a rotating shaft. The oil port is also provided with an elastic member, one end of the elastic member is connected to the valve plate, and the other end is fixedly mounted on the side wall of the oil port.

5. The oil cap assembly for preventing oil emulsification according to claim 2 or 4, characterized in that: A receiving groove is arranged on the side wall of the oil port, and two ends of the rotating shaft are placed in the receiving groove.

6. The oil cap assembly for preventing oil emulsification according to claim 3, characterized in that: The bracket includes a supporting portion and a limiting portion, the supporting portion fixes the rotating shaft in a receiving groove on the side wall of the engine oil port, the limiting portion is located below the valve plate, and the limiting portion is configured to abut against the limiting portion when the valve plate opens the engine oil port.

7. The oil cap assembly for preventing oil emulsification according to claim 1, characterized in that: The valve plate is located at the lower end of the engine oil port.

8. The oil cap assembly for preventing oil emulsification according to claim 7, characterized in that: A gap is provided between the valve plate and the side wall of the oil port, and the width of the gap is 0.5 mm-1 mm.

9. An engine, characterized in that: It comprises an oil cap assembly for preventing oil emulsification as described in any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising the engine as claimed in claim 9.

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