Automobile valve chamber cover

Abstract

The utility model relates to the technical field of automobile accessories, in particular to an automobile valve chamber cover which comprises a cover body, an oil-gas separation cover and a protective buckle cover, an installation area is arranged on the cover body, and a backflow hole and an oil-gas outlet are formed in the installation area. The oil-gas separation cover is buckled on the mounting area and forms an oil-gas cavity and a waste gas transition cavity which are mutually independent, the oil-gas separation cover is provided with a waste gas discharge port and at least one oil-gas inlet, and the oil-gas inlet and the oil-gas outlet are both communicated with the oil-gas cavity; the protection buckle cover is buckled on the oil-gas separation cover, the backflow hole and the waste gas discharging opening are both communicated with the waste gas transition cavity, and a waste gas valve is arranged in the waste gas discharging opening. The automobile valve chamber cover adopts a split design and is convenient to manufacture and low in replacement cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessories, and particularly relates to an automobile valve chamber cover. BACKGROUND

[0002] Engine valve chamber covers are generally installed on engines together with cylinder covers and form a sealed structure. With increasingly high environmental protection requirements, in order to reduce air pollution caused by direct discharge of engine combustion exhaust gas into the atmosphere and excessive consumption of engine oil, oil-gas separation structures are added in existing engine structures to realize reuse of engine oil and secondary combustion of exhaust gas. For example, a valve chamber cover with a high-efficiency oil-gas separation structure is disclosed in patent CN202410810455.3. In this patent, an oil-gas separation structure is directly integrally formed on the valve chamber cover body, and then the oil-gas separation structure is sealed by an upper shell. Such a design makes the structure of the valve chamber cover body relatively complex, requires a high-quality forming die in the forming process, and has a high manufacturing cost. In addition, since the valve chamber cover body is directly installed on the cylinder cover of the engine, the valve chamber cover body is prone to damage during use, and thus the entire valve chamber cover body and the oil-gas separation structure thereon need to be replaced, which has a high replacement cost. SUMMARY

[0003] To overcome one of the deficiencies of the prior art, the purpose of the utility model is to provide an automobile valve chamber cover. The automobile valve chamber cover is designed in a split type, is easy to manufacture, and has a low replacement cost.

[0004] To solve the above problems, the utility model adopts the following technical scheme:

[0005] An automobile valve chamber cover includes a cover body, an oil-gas separation cover, and a protective buckle cover. The cover body is provided with a mounting area. The mounting area is provided with a backflow hole and an oil-gas outlet. The oil-gas separation cover is buckled on the mounting area and forms an oil-gas cavity and an exhaust gas transition cavity that are independent of each other. The oil-gas separation cover is provided with an exhaust gas discharge port and at least one oil-gas inlet. The oil-gas inlet and the oil-gas outlet are both in communication with the oil-gas cavity. The protective buckle cover is buckled on the oil-gas separation cover. The backflow hole and the exhaust gas discharge port are both in communication with the exhaust gas transition cavity. An exhaust gas valve is arranged in the exhaust gas discharge port.

[0006] Further, the oil-gas inlet is provided with two oil-gas inlets, which are arranged on two ends of the oil-gas separation cover, respectively.

[0007] Further, the oil-gas separation cover is provided with an air inlet transition cavity on a region where the oil-gas inlet is located. The air inlet transition cavity is in communication with the oil-gas cavity. An air inlet valve is arranged between the air inlet transition cavity and the oil-gas cavity.

[0008] Further, the second opening is arranged on the outer end of the air inlet transition chamber, and the protective buckle cover is buckled and sealed on the second opening.

[0009] Further, the first opening is arranged on the corresponding area of the exhaust gas transition chamber of the oil-gas separation cover, and the protective buckle cover is buckled and sealed on the first opening.

[0010] Further, the cover body is provided with an oil filler cap mounting hole.

[0011] Further, the cover body is provided with a plurality of ignition coil mounting holes, the oil-gas separation cover is provided with an extension area, a plurality of hole positions matched with the ignition coil mounting holes are arranged on the extension area, and an installation cylinder portion is arranged on the end of the hole position away from the ignition coil mounting hole.

[0012] Further, the installation ring table is arranged on the side of the ignition coil mounting hole matched with the oil-gas separation cover, and the sealing convex ring matched with the installation ring table is arranged on the side corresponding to the hole position.

[0013] Further, the protective buckle cover is arranged with a recessed portion on the area where the installation cylinder portion is located.

[0014] Further, the installation area is provided with a sealing clamping groove, and the open end of the oil-gas separation cover is buckled in the sealing clamping groove.

[0015] Compared with the prior art, the automobile valve chamber cover has the beneficial effects that:

[0016] The cover body and the oil-gas separation cover of the automobile valve chamber cover are designed in a split mode, so that the automobile valve chamber cover is convenient to manufacture and convenient to disassemble and replace in the later period. The oil-gas separation cover is buckled on the cover body to form an oil-gas cavity and an exhaust gas transition chamber, so that the exhaust gas and the oil-gas can be isolated, the complex cavity structure is convenient to manufacture, and the manufacturing difficulty is reduced. In addition, the exhaust gas transition chamber can buffer the exhaust gas discharged from the engine combustion chamber to the greatest extent, so as to ensure the stability of the pressure in the engine. Meanwhile, the filter structure can be placed in the exhaust gas transition chamber, so as to effectively reduce the pollution of the discharged exhaust gas to the environment. The protective buckle cover is arranged, which can not only improve the protection performance, but also can be used to seal the hole of the oil-gas separation cover, so as to be convenient to overhaul in the later period.

[0017] The utility model will be further explained in detail in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the structure diagram of the embodiment of the utility model Figure 1 ;

[0019] Figure 2is a structure schematic diagram of the embodiment of the utility model Figure 2 ;

[0020] Figure 3 is the explosion drawing of the embodiment of the utility model

[0021] Figure 4 is the partial structure schematic diagram of the embodiment of the utility model

[0022] Figure 5 is Figure 1 the plane section view along A-A direction in

[0023] Figure 6 is Figure 1 the plane section view along B-B direction in

[0024] Explanation of figure mark:

[0025] Cover body 10, installation area 11, backflow hole 12, oil gas outlet 13, sealing clamping groove 14, oil filler cap mounting hole 15, ignition coil mounting hole 16, installation ring table 17, installation along 18, mounting hole site 19

[0026] Oil gas separation cover 20, waste gas discharge port 21, oil gas inlet 22, intake transition cavity 23, intake valve 24, second opening 25, first opening 26, extension area 27, installation cylinder part 28, sealing convex ring 29

[0027] Protective buckle cover 30, avoidance recess 31

[0028] Oil gas cavity 40

[0029] Waste gas transition cavity 50

[0030] Waste gas valve 60 Specific implementation

[0031] In order to make the utility model's purpose, technical scheme and advantage more clear and distinct, the following combines the attached drawing and embodiment, and further detailedly explains the utility model. It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0032] Refer to Figures 1 to 4The automobile valve chamber cover shown in the application comprises a cover body 10, an oil-gas separation cover 20 and a protective buckle cover 30, the cover body 10 is provided with a mounting area 11, the mounting area 11 is provided with a backflow hole 12 and an oil-gas outlet 13, the oil-gas separation cover 20 is buckled on the mounting area 11 and forms an oil-gas cavity 40 and a waste gas transition cavity 50 which are independent of each other, the oil-gas separation cover 20 is provided with a waste gas discharge port 21 and at least one oil-gas inlet 22, the oil-gas inlet 22 and the oil-gas outlet 13 are both in communication with the oil-gas cavity 40; the protective buckle cover 30 is buckled on the oil-gas separation cover 20, the backflow hole 12 and the waste gas discharge port 21 are both in communication with the waste gas transition cavity 50, and the waste gas discharge port 21 is provided with a waste gas valve 60.

[0033] In the application, the cover body 10 is mounted on the cylinder head of the engine, and the oil-gas cavity 40 and the waste gas transition cavity 50 are actually obtained by the cooperation of the oil-gas separation cover 20 and the cover body 10, so that they can be fixed to each other by screws or ultrasonic welding in the actual installation process. In an embodiment of the application, in order to ensure the sealing of the oil-gas cavity 40 and the waste gas transition cavity 50, the mounting area 11 is provided with a sealing clamping groove 14, and the opening end of the oil-gas separation cover 20 is buckled in the sealing clamping groove 14. The middle region of the oil-gas separation cover 20 is provided with a partition structure, which divides the space obtained by the cooperation of the oil-gas separation cover 20 and the cover body 10 into the oil-gas cavity 40 and the waste gas transition cavity 50. Similarly, the mounting area 11 is also provided with a sealing clamping groove 14 matched with the partition structure. In the application, the partition structure is not straight, which needs to be adapted to the structure of the oil-gas cavity 40 and the waste gas transition cavity 50.

[0034] The mounting edge 18 is provided on the opening side of the cover body 10, the mounting edge 18 is provided with a sealing groove for accommodating a sealing ring. In addition, the cover body 10 is provided with a plurality of mounting holes 19, which are mainly used for fixing the cover body 10 on the cylinder head by screws.

[0035] In addition, in order to handle the waste gas in the crankcase of the engine, the waste gas contains water, oil, gasoline and other substances, in order to avoid the pollution of the atmosphere caused by the discharge of these substances into the atmosphere with the airflow, the airflow needs to be separated and filtered. Therefore, in an embodiment of the application, a filter element is arranged in the waste gas transition cavity 50.

[0036] The cover body 10 and the oil-gas separation cover 20 of the automobile valve chamber cover are designed in a split type, which is convenient for manufacturing and disassembling and replacing in later period. When the oil-gas separation cover 20 is buckled on the cover body 10 to form an oil-gas cavity 40 and a waste gas transition cavity 50, the waste gas and the oil-gas can be isolated, and the complex cavity structure can be manufactured conveniently, thereby reducing the manufacturing difficulty. In addition, the design of the waste gas transition cavity 50 can buffer the waste gas discharged from the engine combustion chamber to the greatest extent, thereby ensuring the stability of the pressure in the engine. Meanwhile, the waste gas transition cavity 50 can be used to place a filtering structure, which can effectively reduce the pollution of the discharged waste gas to the environment. In addition, the protective buckle cover 30 is arranged, which can not only improve the protection performance, but also can be used to block the holes on the oil-gas separation cover 20, thereby facilitating the maintenance in later period.

[0037] Referring to Figures 1 to 2 In an embodiment of the present application, in order to make the air intake uniform, two oil-gas inlets 22 are arranged on the two ends of the oil-gas separation cover 20. In addition, an air intake transition cavity 23 is arranged on the area where the oil-gas inlets 22 are located on the oil-gas separation cover 20. The air intake transition cavity 23 is in communication with the oil-gas cavity 40, and an air intake valve 24 is arranged between the air intake transition cavity 23 and the oil-gas cavity 40. A second opening 25 is arranged on the outer end of the air intake transition cavity 23, and the protective buckle cover 30 is buckled and blocked on the second opening 25. The air intake transition cavity 23 is actually a part of the oil-gas cavity 40, and the structure is designed for the purpose of facilitating the buckling and sealing of the protective buckle cover 30. In addition, the air intake transition cavity 23 is designed in an openable type, which can facilitate the cleaning of the dirt in the air intake transition cavity 23 and the adjustment of the air intake pressure of the oil-gas. In addition, the structure design of the second opening 25 can facilitate the staff to check the specific situation of the oil-gas cavity 40 by only opening the protective buckle cover 30, thereby avoiding the opening of the oil-gas separation cover 20 and improving the convenience.

[0038] Referring to Figure 3 Similarly, in an embodiment of the present application, in order to facilitate the staff to check the situation in the waste gas transition cavity 50, clean the oil dirt and replace the filter core structure in the waste gas transition cavity 50, a first opening 26 is arranged on the corresponding area of the waste gas transition cavity 50 on the oil-gas separation cover 20, and the protective buckle cover 30 is buckled and blocked on the first opening 26.

[0039] Actually, in the above two embodiments, the opening end of the first opening 26 and the second opening 25 is provided with a buckle groove, and the protective buckle cover 30 is provided with a buckle edge structure matched with the buckle groove at the corresponding position, so that the two are sealed with each other. Of course, in an embodiment, a sealing ring structure is arranged in the buckle groove.

[0040] Referring to Figure 1 and Figure 2In an embodiment of the present application, the cover body 10 is provided with a filler cap mounting hole 15, and the filler cap mounting hole 15 is provided with a cover.

[0041] Referring to Figures 1 to 4 In an embodiment of the present application, the cover body 10 is provided with a plurality of ignition coil mounting holes 16, the oil-gas separation cover 20 is provided with an extension area 27, the extension area 27 is provided with a plurality of hole positions adapted to the ignition coil mounting holes 16, and the hole positions are provided with mounting cylinder portions 28 at the ends away from the ignition coil mounting holes 16. The main purpose of the extension area 27 is to further provide mounting space and protection, facilitate the later personnel to adapt and install the outer end structure of the ignition coil, and reduce the structural complexity of the ignition coil mounting holes 16 when the cover body 10 is formed, so as to realize structural simplification. The structure of the mounting cylinder portion 28 is mainly to ensure that the structure formed by the ignition coil mounting hole 16 and the mounting cylinder portion 28 can adapt to the external ignition coil.

[0042] In the improved embodiment described above, in order to ensure the continuity and sealing of the ignition coil mounting hole 16 and the mounting cylinder portion 28, and avoid the entry of external oil gas or water vapor, the side of the ignition coil mounting hole 16 matched with the oil-gas separation cover 20 is provided with a mounting ring table 17, and the side corresponding to the hole position is provided with a sealing convex ring 29 matched with the mounting ring table 17.

[0043] In addition, in the improved scheme described above, the protection buckle cover 30 is provided with a recess 31 at the area where the mounting cylinder portion 28 is located, and the main purpose is to facilitate the later installation of the ignition coil.

[0044] The above embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and replacements made by those skilled in the art on the basis of the present application all belong to the scope of protection required by the present application.

Claims

1. An automotive valve cover, characterized by, The cover body is provided with a mounting area, a backflow hole and an oil gas outlet, the oil gas separation cover is buckled on the mounting area and forms an oil gas cavity and a waste gas transition cavity, the oil gas separation cover is provided with a waste gas discharge port and at least one oil gas inlet, the oil gas inlet and the oil gas outlet are in communication with the oil gas cavity, the protective buckle cover is buckled on the oil gas separation cover, the backflow hole and the waste gas discharge port are in communication with the waste gas transition cavity, and the waste gas discharge port is provided with a waste gas valve.

2. The valve cover of claim 1, wherein: The oil gas inlet is provided with two oil gas inlets and is arranged on both ends of the oil gas separation cover.

3. The valve cover according to claim 1 or 2, characterized in that: The oil gas separation cover is provided with an air inlet transition cavity on the area where the oil gas inlet is located, the air inlet transition cavity is in communication with the oil gas cavity, and an air inlet valve is arranged between the air inlet transition cavity and the oil gas cavity.

4. The valve cover of claim 3, wherein: The air inlet transition cavity is provided with a second opening at one end thereof, and the protective buckle cover is buckled and sealed on the second opening.

5. The valve cover of claim 1 wherein: The oil gas separation cover is provided with a first opening on the corresponding area of the waste gas transition cavity, and the protective buckle cover is buckled and sealed on the first opening.

6. The valve cover of claim 1, wherein: The cover body is provided with an oil inlet cover mounting hole.

7. The valve cover of claim 6, wherein: The cover body is provided with a plurality of ignition coil mounting holes, the oil gas separation cover is provided with an extension area, the extension area is provided with a plurality of hole positions matched with the ignition coil mounting holes, and the hole positions are provided with mounting cylinder portions at one end away from the ignition coil mounting holes.

8. The valve cover of claim 7, wherein: The side of the ignition coil mounting hole matched with the oil gas separation cover is provided with a mounting ring table, and the side corresponding to the hole position is provided with a sealing convex ring matched with the mounting ring table.

9. The valve cover of claim 7, wherein: The protective buckle cover is provided with a recessed portion on the area where the mounting cylinder portion is located.

10. The valve cover of claim 1, wherein: The mounting area is provided with a sealing clamping groove, and one end of the opening of the oil gas separation cover is buckled in the sealing clamping groove.

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