阅读说明：本技术 一种用于发动机的机油标尺 (oil dipstick for engine ) 是由 岳湘楠 张东 丁志强 翟永辉 李建武 祁奇 苏嘉达 董晓 傅铭宇 于 2019-10-18 设计创作，主要内容包括：本发明公开了一种用于发动机的机油标尺,属于发动机零部件技术领域。所述机油标尺包括标尺主体和设于所述标尺主体一端的密封塞,所述密封塞上设置排气机构,所述排气机构连通机油标尺管和外界,所述机油标尺管内的气体能够由所述排气机构逸出。本发明所提供的机油标尺,既能保证对机油标尺管的密封,还能在密封过程中实现机油标尺管内气体的逸出,最大限度地减少密闭空气腔所密封的气体体积,进而减小机油标尺管内机油液面与油底壳内机油液面的液面误差,从而保证机油液面测量的准确性,使用方便、成本低廉,测量结果准确可靠。(The invention discloses engine oil dipstick for an engine, which belongs to the technical field of engine parts and comprises a dipstick main body and a sealing plug arranged at the end of the dipstick main body, wherein an exhaust mechanism is arranged on the sealing plug and is communicated with an engine oil dipstick pipe and the outside, and gas in the engine oil dipstick pipe can escape from the exhaust mechanism.)

The engine oil dipstick is used for an engine and is characterized by comprising a dipstick body (1) and a sealing plug (2) arranged at the end of the dipstick body (1), wherein an exhaust mechanism is arranged on the sealing plug (2), the exhaust mechanism is communicated with an engine oil dipstick tube (200) and the outside, and gas in the engine oil dipstick tube (200) can escape from the exhaust mechanism.

2. The dipstick according to claim 1, wherein the sealing plug (2) comprises a sealing plug main body (21) and a positioning part (22) arranged at the end of the sealing plug main body (21), the venting mechanism is arranged on the sealing plug main body (21), the sealing plug main body (21) extends into the dipstick tube (200) to seal the dipstick tube (200), and the positioning part (22) is used for limiting the length of the dipstick extending into the dipstick tube (200).

3. The dipstick according to claim 2, wherein the sealing plug body (21) is of a bamboo joint structure, the largest outer diameter of which is larger than the inner diameter of the dipstick tube (200).

4. The dipstick according to claim 1, characterized in that the venting means is a venting groove (4) provided in the outer wall of the sealing plug (2), the venting groove (4) extending in the axial direction of the sealing plug (2).

5. The dipstick according to claim 1, characterized in that the venting means is a vent hole provided on the sealing plug (2), which vent hole communicates the inside of the dipstick tube (200) with the outside.

6. The dipstick according to claim 5, characterized in that the vent hole comprises th vent hole and a second vent hole which are communicated with each other, the th vent hole extends from the free end of the sealing plug (2) along the axial direction of the sealing plug (2) until being communicated with the second vent hole, the end of the second vent hole is communicated with the th vent hole, and the end penetrates through the side wall of the sealing plug (2) and is communicated with the outside.

7. The dipstick according to claim 6, characterized in that the second venting hole extends in a direction perpendicular to the axial direction of the sealing plug (2).

8. The dipstick according to claim 4, characterized in that the vent groove (4) is provided in a plurality, and the vent grooves (4) are evenly distributed along the circumference of the sealing plug (2).

9. The dipstick according to claim 1, characterized in that the sealing plug (2) is a rubber.

10. The dipstick of claim 1, further comprising a dipstick handle (3), wherein the dipstick handle (3) is provided at the end of the sealing plug (2) not connected to the dipstick body (1).

Technical Field

The invention relates to the technical field of engine parts, in particular to oil dipsticks for an engine.

Background

The engine oil is stored in the oil pan of the engine, and plays roles of lubrication, cooling, cleaning, sealing and leakage prevention, rust prevention and corrosion prevention, shock absorption and buffering, wear reduction and the like on the engine, so that the engine oil is known as 'blood' of an automobile and is vital to normal operation of the engine. Proper amount of engine oil is added, and too little or too much is not needed: if the engine oil amount is too small, the engine oil cannot play the roles of lubrication, cooling and the like, so that the friction among all parts is increased, and the parts are worn out too early, thereby affecting the normal work of the engine; when the engine oil is excessive, the engine oil can be led to enter a combustion chamber from a gap between a cylinder and a piston to participate in combustion, and carbon deposits are formed, the carbon deposits can improve the compression ratio of the engine, increase the possibility of generating knocking, and deteriorate combustion, so that the emission of automobile exhaust does not reach the standard and the environment is polluted; the carbon deposit is in a red hot state in the cylinder and is easy to cause pre-ignition, if the carbon deposit falls into the cylinder, the abrasion of the cylinder and a piston is aggravated, and the engine oil pollution is accelerated; in addition, when the engine oil is excessive, the crankshaft connecting rod can be contacted with the liquid level of the engine oil, so that the stirring resistance is increased, and the fuel consumption is increased. Therefore, the oil level gauge usually extends into an oil gauge pipe of the engine to complete the detection of the oil level and know the oil content so as to supplement or reduce the oil in time.

Meanwhile, with the increasing severity of environmental regulations, the consumption of engine oil becomes an important index for measuring the quality of the engine. The good engine must guarantee that the engine oil can not volatilize and leak from the oil scale pipe, so the good sealing performance between the engine oil scale and the engine oil scale pipe must be achieved. When the existing engine oil dipstick tube is sealed, a sealed air cavity is formed above the engine oil liquid level in the engine oil dipstick tube, so that the measurement error of the engine oil liquid level is caused.

Therefore, it is desirable to provide dipsticks for engines that address the above-mentioned problems.

Disclosure of Invention

The invention aims to provide oil dipsticks for an engine, and solves the problem that errors are caused to oil level measurement by a closed air cavity formed by the oil dipstick tube and closed by the oil dipstick tube in the prior art.

In order to realize the purpose, the following technical scheme is provided:

oil dipstick for engine, the oil dipstick includes the scale main part with locate the sealing plug of scale main part end, set up exhaust mechanism on the sealing plug, exhaust mechanism intercommunication oil dipstick pipe and external world, the intraductal gas of oil dipstick can be by exhaust mechanism escapes.

Preferably, the sealing plug comprises a sealing plug main body and a positioning part arranged at the end of the sealing plug main body, the exhaust mechanism is arranged on the sealing plug main body, the sealing plug main body extends into the oil dipstick tube to seal the oil dipstick tube, and the positioning part is used for limiting the length of the oil dipstick extending into the oil dipstick tube.

Preferably, the main body of the sealing plug is of a bamboo joint structure, and the maximum outer diameter of the bamboo joint structure is larger than the inner diameter of the oil gauge pipe.

Preferably, the venting mechanism is a venting groove formed in an outer wall of the sealing plug, and the venting groove extends along an axial direction of the sealing plug.

Preferably, the exhaust mechanism is an exhaust hole formed in the sealing plug, and the exhaust hole is communicated with the inside of the engine oil gauge pipe and the outside.

Preferably, the vent hole comprises th vent hole and a second vent hole which are communicated with each other, the th vent hole extends from the free end of the sealing plug along the axial direction of the sealing plug until the free end is communicated with the second vent hole, the end of the second vent hole is communicated with the th vent hole, and the end penetrates through the side wall of the sealing plug to be communicated with the outside.

Preferably, the second vent hole extends in a direction perpendicular to the plug axis.

Preferably, the exhaust grooves are provided in plurality, and the exhaust grooves are uniformly distributed along the circumferential direction of the sealing plug.

Preferably, the sealing plug is a rubber member.

Preferably, the dipstick further comprises a dipstick handle, and the dipstick handle is arranged at the end of the sealing plug which is not connected with the dipstick body.

Compared with the prior art, the invention has the beneficial effects that:

the engine oil level gauge provided by the invention can ensure the sealing of the engine oil level gauge pipe, and can realize the escape of gas in the engine oil level gauge pipe in the sealing process, so that the volume of the gas sealed by the sealed air cavity is reduced to the maximum extent, and further, the liquid level error between the liquid level of the engine oil in the engine oil level gauge pipe and the liquid level of the engine oil in the oil pan is reduced, thereby ensuring the accuracy of the measurement of the liquid level of the engine oil, and the engine oil level gauge is convenient to use, low in cost and accurate and reliable in measurement result.

Drawings

FIG. 1 is a schematic structural diagram of a prior art oil level gauge;

FIG. 2 is a cross-sectional view of a prior art oil dipstick;

FIG. 3 is a schematic view of a prior art oil dipstick when it is just inserted into the oil dipstick tube;

FIG. 4 is a schematic view of a prior art oil dipstick when fully inserted into an oil dipstick tube;

FIG. 5 is a schematic diagram of the oil dipstick in an embodiment of the present invention;

FIG. 6 is a cross-sectional view of an oil dipstick in an embodiment of the present invention;

FIG. 7 is a schematic view of the dipstick of the present invention just after insertion into the dipstick tube;

FIG. 8 is a schematic view of the oil level indicator fully inserted into the oil level indicator tube in an embodiment of the present invention.

Reference numerals:

100. 100' -an oil pan; 200. 200' -an engine oil gauge tube; 300. 300' -enclosing an air cavity;

10. 10' -oil level in the oil pan; 20. 20' -oil level in the oil gauge tube;

1. 1' -a scale body; 2. 2' -a sealing plug; 21-a sealing plug body; 22-a positioning section; 3. 3' -a staff gauge handle; 4-an exhaust groove.

Detailed Description

To further clarify the objects, aspects and advantages of embodiments of the present invention, reference will now be made in detail to the present embodiments of the invention as illustrated in the accompanying drawings, which are incorporated in this specification, and it is to be understood that the embodiments illustrated and described are some, but not all, of the embodiments of the invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once a item is defined in figures, it need not be further defined and explained by in subsequent figures.

In the description of the present invention, it is to be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally put out when products of the present invention are used, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus are not to be construed as limitations of the present invention.

In describing the present invention, it should also be noted that unless otherwise expressly stated or limited, the terms "disposed" and "connected" are intended to be , for example, a fixed connection, a removable connection, or physical connection, a mechanical connection, or an electrical connection.

In the present invention, unless expressly stated or limited otherwise, "above" or "below" a second feature includes features directly contacting the second feature and may also include features directly contacting the second feature but through another feature in between, further, features "above", "over" and "above" the second feature includes features directly above and obliquely above the second feature or merely means that the feature is at a higher level than the second feature, features "below", "beneath" and "beneath" the second feature includes features directly below and obliquely below the second feature, or merely means that the feature is at a lower level than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

Fig. 5 is a schematic structural diagram of an oil dipstick in an embodiment of the present invention, fig. 6 is a cross-sectional view of the oil dipstick in an embodiment of the present invention, referring to fig. 5 and fig. 6, the embodiment discloses kinds of oil dipstickticks for an engine, which are used to extend into an oil dipstick tube 200 to complete oil level measurement, and the oil dipstick specifically includes a dipstick body 1 and a sealing plug 2 disposed at an end of the dipstick body 1 , an exhaust mechanism is disposed on the sealing plug 2, the exhaust mechanism can communicate the oil dipstick tube 200 with the outside, when the sealing plug 2 seals the oil dipstick tube 200, gas in the oil dipstick tube 200 can escape from the exhaust mechanism, the oil dipstick tube provided in the embodiment can ensure sealing of the oil dipstick tube 200, and also realize escape of gas in the oil dipstick tube 200 during sealing, maximally reduce the volume of gas sealed by the air cavity 300, further reduce a level error between the oil level 20 in the oil dipstick tube and the oil level 10 in the oil pan, thereby ensuring accuracy of oil level measurement, convenience and cost, and reliability of use, and reliability of measurement, when the oil dipstick tube 200 is disposed in an embodiment, the oil dipstick tube, the exhaust mechanism, an optional exhaust mechanism can reduce resistance of the exhaust plug 200 when the exhaust hole 4, the exhaust hole 4 formed in the exhaust hole 200, the exhaust mechanism, the exhaust hole 2, the exhaust mechanism 200, the exhaust mechanism is formed in the exhaust hole 2, the exhaust mechanism, the exhaust hole 2, the exhaust mechanism can be convenient and the exhaust hole 300, the exhaust mechanism, the exhaust hole 300, the exhaust hole 2 can be convenient to reduce the exhaust.

The sealing plug 2 comprises a sealing plug body 21 and a positioning part 22 arranged at the end of the sealing plug body 21 , an exhaust mechanism is arranged on the sealing plug body 21, the sealing plug body 21 extends into the oil scale pipe 200 and is used for sealing the oil scale pipe 200, the positioning part 22 is used for limiting the length of the oil scale extending into the oil scale pipe 200, when the optional positioning part 22 is abutted to the inlet end of the oil scale pipe 200, the oil scale is inserted to a limit position, in the specific implementation, in the process that the sealing plug body 21 extends into the oil scale pipe 200, air in the oil scale pipe 200 escapes from the exhaust mechanism on the sealing plug body 21 until the exhaust mechanism completely enters into the oil scale pipe 200, the sealing plug body 21 can completely seal the oil scale pipe 200, the arrangement enables the sealing plug 2 to serve the purpose of sealing the oil scale pipe 200, the volume of the sealed air cavity 300 in the oil scale pipe 200 is reduced as far as possible, the situation that the oil exhaust hole 20 in the oil scale pipe is reduced under the air pressure of the sealed air cavity 300 is not capable of accurately representing the inner oil level 10 of the oil pan mechanism is reduced, the oil drain hole 10, the direction of the oil drain hole 20, the exhaust hole 2, the exhaust mechanism is a second exhaust hole, the exhaust mechanism is arranged along the direction of the sealing plug body 21, the exhaust end of the sealing plug 2, the exhaust hole, the sealing plug 2, the exhaust hole 21, the exhaust mechanism, the exhaust hole, the exhaust mechanism, the exhaust end of the sealing plug 2, the.

Optionally, the number of the vent grooves 4 or vent holes of the vent mechanism is not limited herein, and may be , two or more, and optionally, a plurality of vent grooves 4 may be uniformly distributed along the circumferential direction of the sealing plug 2, so as to improve the venting effect and facilitate the sealing operation of the sealing plug 2.

The sealing plug main body 21 in the embodiment can be of a cylindrical structure, the outer diameter of the cylinder is larger than the inner diameter of the engine oil scale pipe 200, certainly, as preferred embodiments, the sealing plug main body 21 can also be of a bamboo joint structure, the maximum outer diameter of the bamboo joint structure is larger than the inner diameter of the engine oil scale pipe 200, the bamboo joint structure can provide -defined movable space for the sealing plug 2 when the sealing plug 2 is plugged, the plugging of the sealing plug main body 21 is facilitated, and the sealing effect is not affected.

The sealing plug 2 can be a rubber piece, the rubber has better corrosion resistance and high temperature resistance and has fixed elasticity, so that the sealing plug main body 21 can be plugged into the engine oil gauge pipe 200, the sealing effect of the engine oil gauge pipe 200 can be fully realized by the extrusion deformation of the rubber sealing plug 2 during plugging, and the engine oil is prevented from volatilizing, and optionally, the exhaust groove 4 or the exhaust hole on the sealing plug 2 can be formed by injection molding.

In order to better understand the technical solution, the oil dipstick without the exhaust mechanism is taken as an example to specifically explain the technical defects of the prior art.

Fig. 1 is a schematic structural diagram of an oil level gauge in the prior art, fig. 2 is a cross-sectional view of the oil level gauge in the prior art, fig. 3 is a schematic diagram when the oil level gauge in the prior art is just inserted into an oil level gauge pipe, fig. 4 is a schematic diagram when the oil level gauge in the prior art is completely inserted into the oil level gauge pipe, in fig. 3, when the oil level gauge is just inserted into the oil level gauge pipe 200 ', the oil level 10 ' in an oil pan is as high as the oil level 20 ' in the oil level gauge pipe, but the oil level gauge and the oil level gauge pipe 200 ' are in a sealed state at the moment, namely a sealed air chamber 300 ' is formed, as shown in fig. 4, when the oil level gauge pipe is continuously inserted into the oil level gauge pipe 200 ', the air compression space in the sealed air chamber 300 ' is limited, so that syringes of engine oil can be formed when the compression cannot be continued, the engine oil can be "pressed into" the oil pan ", and at the oil level 20 ' in the oil level gauge pipe is lower than the oil level 10 ', namely, the measured oil level is lower, the oil level is deviated, and the engine oil injection amount is further caused, so that the engine shortage of the engine is caused.

The following will specifically describe the oil level measuring process of the oil dipstick provided in this embodiment, in which the sealing plug main body 21 is composed of three bamboo joint structures, and the exhaust mechanism is selected as the exhaust groove 4.

Fig. 7 is a schematic diagram of an oil dipstick just inserted into an oil dipstick tube in an embodiment of the present invention, and fig. 8 is a schematic diagram of an oil dipstick completely inserted into an oil dipstick tube in an embodiment of the present invention, as shown in fig. 7, when the th joint of the oil dipstick of the present embodiment is just inserted into the oil dipstick tube 200, the oil liquid level 10 in the oil pan and the oil liquid level 20 in the oil dipstick tube are at the same height, and due to the presence of the air discharge groove 4, the sealed air cavity 300 between the oil dipstick and the oil dipstick tube 200 is not completely closed at this time, as shown in fig. 8, when the oil dipstick tube 200 is continuously inserted, the air in the sealed air cavity 300 flows into the atmosphere along the air discharge groove 4 penetrating the , the second complete joint and the majority of the third joint, thereby preventing the air in the sealed air cavity 300 from being compressed to form a large air pressure, and therefore, the positioning portion 22 of the sealing plug 2 abuts against the inlet end of the dipstick tube 200, and the air in the oil dipstick tube 200 is hardly compressed, thereby preventing the oil dipstick tube from being significantly reduced in the oil dipstick tube 20 and thus improving the accuracy of.

Certainly, in other embodiments, the exhaust groove 4 may be disposed on the side wall of the oil scale tube 200 instead of disposing the exhaust groove 4 on the sealing plug 2 of the oil scale, and the exhaust groove 4 penetrates through the side wall of the oil scale tube 200, at this time, in the process that the sealing plug main body 21 blocks the oil scale tube 200, the exhaust groove 4 on the oil scale tube 200 is always communicated with the inside of the oil scale tube 200 and the outside, so that the air pressure of the closed air cavity 300 does not rise, the oil level sealing plug 20 in the oil scale tube and the oil level 10 in the oil pan are kept , after the sealing plug main body 21 is completely clamped into the oil scale tube 200, the sealing plug 2 can completely block the oil scale tube 200, and the sealing plug 2 isolates the exhaust groove 4 from the closed air cavity 300, thereby ensuring the sealing performance of the oil scale tube 200.

, the oil level gauge further comprises a gauge handle 3 for facilitating a worker to hold the oil level gauge, the gauge handle 3 is arranged at the end of the sealing plug 2 which is not connected with the gauge main body 1, and scales can be optionally arranged on the gauge main body 1 to represent the height of the oil level, so that the oil level is visualized.

In order to ensure that the oil level indicator is used for accurately measuring the oil amount in the engine, the embodiment also provides a using method of the oil level indicator, which comprises the following specific steps:

s1, firstly, stopping the vehicle on a horizontal ground, extinguishing the vehicle, then standing for 15 minutes, and making the engine oil flow back to the oil pan as far as possible;

s2, pulling out the oil dipstick and wiping the oil on the scale part of the dipstick main body 1;

and S3, inserting the oil dipstick into the oil dipstick tube 200, pulling out the oil dipstick tube, and reading the height of the oil on the dipstick body 1 to reach the middle position of the upper limit and the lower limit of the graduated scale.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.