Engine oil filling and storing module of automobile engine

Abstract

The invention provides an engine oil filling and storing module of an automobile engine, and belongs to the technical field of automobile engine structures. According to the engine oil filling and storing module, through the structural design of the engine oil level gauge and the engine oil cover, the problem that in the prior art, an engine oil filling and storing module is high in maintenance burden cost for a target passenger group of a commercial vehicle of a micro-face / light passenger level is solved. At least two twisting parts are arranged on a ruler body of the oil level gauge, and the ruler body is twisted by 30-60 degrees clockwise at the twisting parts from the bottom end of the ruler body to the top end of the ruler body. The engine oil cover comprises a cover plug and a cover handle. The outer wall of the cover plug is provided with external threads matched with the internal threads of the filling port of the engine oil pan. A first torsion limiting part is arranged on the cover plug, a second torsion limiting part is arranged on the cover handle, and the cover plug and the cover handle are mutually limited in the circumferential direction of the engine oil cover through matching of the first torsion limiting part and the second torsion limiting part. And when the torsion applied to the cover handle drives the first torsion limiting part and the second torsion limiting part to be separated from each other, the cover plug and the cover handle rotate relative to each other.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive engine structures, and particularly relates to an oil filling and storage module for an automotive engine. Background Art

[0002] The oil filling and storage module of an automotive engine is an important part of the oil lubrication system, and is the oil supply source for the lubrication system to lubricate, cool, clean and seal the internal moving parts of the engine; its main components are an oil pan for storing oil, a filling port for receiving oil, an oil cap for sealing the filling port, and an oil dipstick for detecting the oil level in the oil pan; the oil pan is generally located at the bottom of the engine.

[0003] In order to ensure that the oil storage in the oil pan is sufficient, the user needs to insert an oil dipstick into the oil pan through the oil dipstick conduit of the engine to check the oil level; for commercial vehicles in the microvan / light passenger vehicle category, the oil dipstick conduit on the transversely-mounted gasoline engine they carry is generally bent to adapt to the overall design of the vehicle body. In response to this situation, a new type of oil dipstick described in the Chinese utility model patent with the authorization announcement number CN201635798U can be selected. The body of this oil dipstick uses a steel wire rope with good flexibility and toughness, enabling the oil dipstick to be freely inserted and removed in the bent oil dipstick conduit; obviously, the cost of this oil dipstick is higher than that of an oil dipstick made of common materials. Considering the target customer group and usage scenarios of commercial vehicles in the microvan / light passenger vehicle category, when this oil dipstick is damaged or lost and needs to be replaced, the relatively expensive oil dipstick will increase the maintenance burden on the user. At the same time, when the oil level in the oil pan is detected to be too low using the oil dipstick, the user will add oil to the oil pan through the oil filling port. At this time, the oil cap needs to be unscrewed, and after filling the oil, the oil cap needs to be tightened again; common metal threaded caps not only have poor sealing performance, but also it is difficult for the user to accurately judge whether they are tightened during the screwing process; if not tightened, the sealing effect will be poor; and if tightened too tightly, it will not only damage the threads of the oil cap and cause thread slipping, but also be unfavorable for the next oil filling, also increasing the maintenance burden on the user.

[0004] In summary, for the target customer group of commercial vehicles in the microvan / light passenger vehicle category, the existing oil filling and storage module of the engine has a relatively high maintenance burden cost. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide an oil filling and storage module for an automotive engine, which is used to solve the problem that the existing oil filling and storage module has a relatively high maintenance burden cost for the target customer group of commercial vehicles in the microvan / light passenger vehicle category.

[0006] To achieve the above and other related objectives, the present invention provides an engine oil filling and storage module for an automotive engine, which stores the engine oil required for the engine oil lubrication system and receives externally injected engine oil, including:

[0007] An oil pan for storing engine oil;

[0008] An oil dipstick for checking the oil level in the oil pan;

[0009] An oil cap for sealing the filling port of the oil pan;

[0010] The oil dipstick includes a handle and a dipstick body. The top end of the dipstick body is fixedly connected to the handle, and at least two torsion parts are provided on the dipstick body; looking from the bottom end of the dipstick body to the top end of the dipstick body, the dipstick body twists clockwise by 30-60° at the torsion parts.

[0011] The oil cap includes a plug and a cap handle. The outer wall of the plug is provided with an external thread adapted to the internal thread of the filling port of the oil pan; a first torque-limiting part is provided on the plug, and a second torque-limiting part is provided on the cap handle. The plug and the cap handle are mutually limited in the circumferential direction of the oil cap through the cooperation of the first torque-limiting part and the second torque-limiting part; when the torque applied to the cap handle drives the first torque-limiting part and the second torque-limiting part to disengage from each other, the plug and the cap handle rotate relative to each other.

[0012] As described above, the engine oil filling and storage module for an automotive engine of the present invention has at least the following beneficial effects:

[0013] Through the design of arranging torsion parts on the dipstick body, compared with the prior art in which the dipstick body is made of steel wire rope with good flexibility and toughness, the oil dipstick of the present invention not only adapts to the curved oil dipstick conduit on the engines of microvans / light buses, but also can be made of common oil dipstick materials, such as 65Mn alloy steel with surface galvanizing treatment or common stainless steel. It has lower costs during production and subsequent maintenance and replacement; at the same time, the plug and the cap handle are mutually limited in the circumferential direction of the oil cap through the cooperation of the first torque-limiting part and the second torque-limiting part. When the torque applied to the cap handle drives the first torque-limiting part and the second torque-limiting part to disengage from each other, the design that the plug and the cap handle rotate relative to each other enables the user to intuitively feel the disengagement of the first torque-limiting part and the second torque-limiting part when tightening the oil cap, so as to not only accurately judge whether the oil cap is tightened, but also avoid over-tightening the oil cap; in summary, through the above structural design, the engine oil filling and storage module of the present invention solves the problem that the maintenance and cost of the engine oil filling and storage module in the prior art are relatively high for the target customer group of microvans / light buses. Description of the Drawings

[0014] Figure 1Shown is a schematic diagram of an oil filling and storage module for an automotive engine according to the present invention.

[0015] Figure 2 Shown is a schematic diagram of the dipstick according to the present invention.

[0016] Figure 3 Shown is an exploded schematic diagram of the oil filler cap and the filling port according to the present invention.

[0017] Figure 4 Shown is a schematic diagram of the oil filler cap according to the present invention.

[0018] Figure 5 Shown is a circumferential cross-sectional view of the oil filler cap according to the present invention.

[0019] Figure 6 Shown is an axial cross-sectional view of the oil filler cap according to the present invention.

[0020] Element reference numeral description

[0021] Oil pan 1, filling port 11;

[0022] Dipstick 2, handle 21, body 22, torsion part 23, steel ball 24, solder joint 25;

[0023] Oil filler cap 3, plug 31, handle 32, ratchet teeth 33, ratchet bar 34, ratchet bar base 35, pawl 36, clamping projection 37, torsion platform 38, sealing plug 39;

[0024] Dipstick conduit 4. Detailed implementation manners

[0025] The following specific embodiments illustrate the implementation manners of the present invention. Persons familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0026] Please refer to Figures 1 to 6 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for persons familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0027] The following embodiments are only for illustration purposes. Combinations can be made between the various embodiments, and it is not limited to the content shown in the following single embodiment.

[0028] Please refer to Figure 1 , the present invention provides an oil filling and storage module for an automotive engine. Similar to the prior art, this oil filling and storage module stores the engine oil required for the engine oil lubrication system and receives externally injected oil, and it includes:

[0029] As Figure 1 shown, the oil pan 1 is installed at the bottom of the engine and is used to store engine oil.

[0030] As Figure 1 and Figure 2 shown, the oil dipstick 2 is used to check the oil level in the oil pan 1 to ensure that there is sufficient oil in the oil pan 1.

[0031] As Figure 1 shown, the oil cap 3 is used to seal the filling port 11 of the oil pan 1, prevent pollutants from entering the engine interior, ensure the cleanliness of the engine oil; at the same time, reduce the negative impact of air oxidation on the engine oil and extend the service life of the engine oil; in addition, the oil cap 3 also ensures that the high-temperature and high-pressure engine oil during engine operation will not splash or leak from the filling port 11 of the oil pan 1.

[0032] The difference between this oil filling and storage module for an automotive engine and the prior art lies in:

[0033] As Figure 2As shown in the figure, the dipstick 2 includes a handle 21 and a stick body 22. The top end of the stick body 22 is fixedly connected to the handle 21, and at least two torsion parts 23 are arranged on the stick body 22. Looking from the bottom end of the stick body 22 towards the top end, the stick body 22 is twisted clockwise by 30-60° at the torsion part 23. When the user uses the dipstick 2 to insert it into the dipstick conduit 4 to detect the oil level in the oil pan 1, due to the action of at least two torsion parts 23 on the stick body 22 of the dipstick 2, the dipstick 2 can be smoothly bent to adapt to the bent dipstick conduit 4. When the dipstick 2 is pulled out from the dipstick conduit 4, due to the action of the torsion part 23, the user can also smoothly pull out the dipstick 2. Considering that for commercial vehicles of the minivan / light passenger vehicle level, the dipstick conduit 4 on the transversely mounted gasoline engine carried by them is not only bent but also relatively long in order to adapt to the overall design of the vehicle body, the corresponding dipstick 2 is also relatively long. At least two torsion parts 23 need to be designed to ensure that the dipstick 2 can be smoothly inserted into the dipstick conduit 4 and pulled out from the dipstick conduit 4. Compared with the existing technology that uses a wire rope with better flexibility and toughness to make the stick body 22, the dipstick 2 of the present invention not only adapts to the bent dipstick conduit 4 on the engines of minivan / light passenger vehicle level commercial vehicles, but also can be made of common dipstick 2 materials, such as 65Mn alloy steel with surface galvanizing treatment or common stainless steel, which has lower costs during production and subsequent maintenance and replacement.

[0034] As Figure 3 and Figure 4 shown in the figure, the oil cap 3 includes a plug 31 and a handle 32. The outer wall of the plug 31 is provided with an external thread adapted to the internal thread of the filling port 11 of the oil pan 1. A first torque limiting part is arranged on the plug 31, and a second torque limiting part is arranged on the handle 32. The plug 31 and the handle 32 are mutually limited in the circumferential direction of the oil cap 3 through the cooperation of the first torque limiting part and the second torque limiting part. When the torque applied to the handle 32 drives the first torque limiting part and the second torque limiting part to disengage, the plug 31 and the handle 32 rotate relative to each other. The torque that drives the first torque limiting part and the second torque limiting part to disengage is greater than the tightening force when the engine cover is tightened. When the user tightens the oil cap 3, the user can intuitively feel that the first torque limiting part and the second torque limiting part disengage, so that not only can the user accurately judge whether the oil cap 3 is tightened, but also the user can avoid over-tightening the oil cap 3. The structural design of the oil cap 3 enables the user neither to cause poor sealing due to the failure to tighten the oil cap 3, nor to damage the thread of the oil cap 3 and cause thread slipping due to over-tightening, which is not conducive to the next oil filling. The specific structural form of the oil cap 3 will be introduced below.

[0035] In summary, through the above structural design, the engine oil filling and storage module of this vehicle solves the problem that the maintenance burden cost of the existing engine oil filling and storage module is relatively high for the target customer group of commercial vehicles at the microvan / light bus level.

[0036] In another embodiment, please refer to Figure 2 , the body 22 is sheet-shaped, and two torsion parts 23 are provided on the body 22, and are respectively located at the 1 / 3 length and 2 / 3 length of the body 22; looking from the bottom end of the body 22 to the top end of the body 22, the body 22 is twisted clockwise by 45° at the torsion part 23; the cost of processing the torsion part 23 on the sheet-shaped body 22 is lower; the two torsion parts 23 are respectively located at the 1 / 3 length and 2 / 3 length of the body 22, compared with other arrangement forms, the dimensions are easier to guarantee during processing, and during use, it is also easier to adapt to the bent shape of the dipstick tube 4; of course, the designer can design the specific position of the torsion part 23 according to the specific shape and size of the dipstick tube 4, which will not be elaborated here.

[0037] In another embodiment, please refer to Figure 2 , the handle 21 is made of plastic, with low cost and easy procurement; the body 22 is made of stainless steel, which can not only meet the anti-corrosion requirements of the dipstick 2, but also has a relatively low raw material procurement cost; a steel ball 24 is welded to the bottom end of the body 22. After the body 22 is inserted into the oil pan 1, the steel ball 24 contacts the bottom of the oil pan 1. Compared with the direct contact of the body 22, it has a buffering effect, which not only protects the bottom of the oil pan 1 from being damaged, but also protects the body 22 from wear; a plurality of welding points 25 are welded on the body 22 as liquid level marks. For low-cost microvan / light commercial vehicles, the method of welding the welding points 25 is simple and low-cost.

[0038] In another embodiment, please refer to Figure 2 , a sealing ring is installed at the joint of the handle 21 and the body 22 to prevent engine oil from leaking out of the dipstick tube 4.

[0039] In another embodiment, please refer to Figure 2 , an annular hole is provided on the handle 21 for the convenience of user operation.

[0040] In another embodiment, please refer to Figures 3 to 6 , we introduce the specific structures of the first torque limiter and the second torque limiter. The plug 31 is a barrel-shaped structure with a closed bottom and an open top. The first torque limiter is a plurality of ratchet teeth 33 provided on the inner wall of the plug 31, and the plurality of ratchet teeth 33 are evenly distributed along the circumference of the plug 31; the second torque limiter is a ratchet bar 34 provided on the cover handle 32; the ratchet bar 34 meshes with the ratchet teeth 33; when the user needs to tighten the oil cap 3, such asFigure 5 As shown, turn the cap handle 32 clockwise. Before it is tightened, the ratchet teeth 33 and the ratchet bar 34 are engaged with each other. When tightened, when the user applies a greater force to turn the cap handle 32, the ratchet bar 34 and the ratchet teeth 33 disengage from each other, and the cap handle 32 and the cap plug 31 rotate relative to each other. The torsional force applied by the user can no longer be transmitted to the cap plug 31 through the cap handle 32, and the external thread on the outer wall of the cap plug 31 no longer continues to be screwed tightly with the internal thread of the filling port 11. When the ratchet bar 34 rotates to the next ratchet tooth 33, similarly, the two will also disengage from each other. When the user needs to loosen the oil cap 3, as Figure 5 shown, turn the cap handle 32 counterclockwise. Since the ratchet bar 34 and the ratchet teeth 33 are of the reverse tooth-shaped structure as shown, when applying a torsional force exceeding the tightening force, the ratchet bar 34 and the ratchet teeth 33 still remain engaged with each other, so as to smoothly loosen the oil cap 3.

[0041] In another embodiment, please refer to Figure 4 and Figure 5 , there are multiple ratchet bars 34, which are fixedly connected to the lower surface of the cap handle 32 at equal intervals along the circumferential direction of the cap handle 32, ensuring the stability of the cooperation between the cap handle 32 and the cap plug 31 when turning the cap handle 32.

[0042] In another embodiment, please refer to Figure 5 , taking the central axis of the cap handle 32 as the axis, 6 ratchet bar bases 35 are arranged at equal intervals in a circular shape at the lower part of the cap handle 32. The ratchet bar bases 35 are fixedly connected to the lower part of the cap handle 32, and the ratchet bar 34 is fixedly connected to the outside of the ratchet bar base 35. The design of the ratchet bar base 35 further ensures the stability of the cooperation between the cap handle 32 and the cap plug 31 when turning the cap handle 32.

[0043] In another embodiment, please refer to Figure 4 and Figure 6 , a claw 36 is arranged on the outside of the cap handle 32, and a convex 37 is arranged radially outward at the top of the cap plug 31. The claw 36 is engaged with the convex 37 in the axial direction of the oil cap 3, ensuring that the cap handle 32 and the cap plug 31 cannot disengage axially and can rotate relative to each other circumferentially.

[0044] In another embodiment, please refer to Figure 6 , there are at least three claws 36, which are arranged at equal intervals along the circumferential direction of the cap handle 32 on the outside of the cap handle 32, so as to ensure that the cap handle 32 and the cap plug 31 can be firmly connected axially without disengaging. More specifically, the claw 36 can be designed to be 8 or other numbers, which will not be elaborated here.

[0045] In another embodiment, please refer to Figure 3 and Figure 4, a sealing plug 39 is installed between the plug 31 and the filling port 11 to further ensure the sealing effect of the engine oil cap 3.

[0046] In another embodiment, please refer to Figure 2 , the body 22 of the dipstick is 521 mm long, 4.7 mm wide and 1 mm thick to adapt to the dimensional requirements of the engine oil dipstick conduit 4 of minivans / light commercial vehicles.

[0047] In other embodiments, as Figure 4 shown, a torsion platform 38 is fixedly connected to the top of the handle 32 of the cap, and anti-slip lines are provided on the surface of the torsion platform 38 to facilitate the user to twist the engine oil cap 3.

[0048] In summary, through the structural design of the engine oil dipstick 2 and the engine oil cap 3 in the engine oil filling and storage module of an automobile engine, while adapting to the curved engine oil dipstick conduit 4 on minivan / light commercial vehicle engines, the cost is lower during production and subsequent maintenance and replacement; users can accurately judge whether the engine oil cap 3 is tightened and avoid over-tightening the engine oil cap 3; thus solving the problem that the maintenance burden cost of the existing engine oil filling and storage module is relatively high for the target customer group of minivan / light commercial vehicles. Therefore, the present invention effectively overcomes the disadvantages in the prior art and has high industrial utilization value.

[0049] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An engine oil filling and storage module for a vehicle engine, which stores the engine oil required by the engine oil lubrication system and receives externally injected engine oil, comprising: An oil pan for storing engine oil; An oil dipstick for checking the oil level in the oil pan; An oil cap for sealing the filling port of the oil pan; Characterized in that: The oil dipstick includes a handle and a dipstick body. The top end of the dipstick body is fixedly connected to the handle, and at least two torsion parts are provided on the dipstick body; when looking from the bottom end of the dipstick body to the top end of the dipstick body, the dipstick body is twisted clockwise by 30 to 60° at the torsion part; The oil cap includes a plug and a cap handle. The outer wall of the plug is provided with an external thread adapted to the internal thread of the filling port of the oil pan; a torsion limiting part one is provided on the plug, and a torsion limiting part two is provided on the cap handle. The plug and the cap handle are mutually limited in the circumferential direction of the oil cap through the cooperation of the torsion limiting part one and the torsion limiting part two; when the torsion force applied to the cap handle drives the torsion limiting part one and the torsion limiting part two to disengage from each other, the plug and the cap handle rotate relative to each other.

2. The engine oil filling and storage module for a vehicle engine according to claim 1, characterized in that: The dipstick body is sheet-shaped, and two torsion parts are provided on the dipstick body, which are respectively located at the 1 / 3 length and 2 / 3 length of the dipstick body; when looking from the bottom end of the dipstick body to the top end of the dipstick body, the dipstick body is twisted clockwise by 45° at the torsion part.

3. The engine oil filling and storage module for a vehicle engine according to claim 1, characterized in that: The handle is made of plastic, the dipstick body is made of stainless steel, a steel ball is welded at the bottom end of the dipstick body, and a plurality of welding points are welded on the dipstick body.

4. The engine oil filling and storage module for a vehicle engine according to claim 1, characterized in that: The plug is a barrel-shaped structure with a closed bottom and an open top. The torsion limiting part one is a plurality of ratchet teeth provided on the inner wall of the plug, and the plurality of ratchet teeth are equally spaced along the circumferential direction of the plug; the torsion limiting part two is a ratchet bar provided on the cap handle; both the ratchet bar and the ratchet teeth are reverse teeth and are engaged together.

5. The engine oil filling and storage module for a vehicle engine according to claim 4, characterized in that: There are a plurality of ratchet bars, which are fixedly connected to the lower surface of the cap handle at equal intervals along the circumferential direction of the cap handle.

6. The engine oil filling and storage module for a vehicle engine according to claim 1, characterized in that: A claw is provided on the outer side of the cap handle, and a convex is provided on the top of the plug along the radial direction outward. The claw is engaged with the convex in the axial direction of the oil cap.

7. The engine oil filling and storage module for a vehicle engine according to claim 1, characterized in that: A sealing ring is installed at the joint of the handle and the dipstick body, and an annular hole is provided on the handle.

8. The engine oil filling and storage module for a vehicle engine according to claim 5, characterized in that: A plurality of ratchet bar bases are fixedly connected to the lower part of the cap handle, and the plurality of ratchet bar bases are arranged at equal intervals in a circumferential manner with the central axis of the cap handle as the axis; The ratchet bar is fixedly connected to the outside of the ratchet bar base.

9. The oil filling and storage module for an automotive engine according to claim 1, wherein: The ruler body is 521 mm in length, 4.7 mm in width, and 1 mm in thickness.

10. The oil filling and storage module for an automotive engine according to claim 1, wherein: A torsion platform is fixedly connected to the top of the handle of the cover, and anti-slip patterns are provided on the surface of the torsion platform.

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