KR20040050270A - Oil drain plug apparatus - Google Patents

Abstract

PURPOSE: Structure of an oil drain plug is provided to offer convenience to a worker by making the discharge of a necessary amount of oil easy through an oil nozzle prepared in a serve valve when an oil pan is over-charged with oil. CONSTITUTION: A bolt hole(22) with a separate thread is prepared inside the end of an oil drain plug(20). A serve valve(30) made from rubber is fitted in the bolt hole. An annular valve face(32) easily bending in one direction is formed on the middle portion of the serve valve in a protruded form. An oil nozzle(36) penetrates through the lengthwise middle portion of the serve valve to control the amount of the discharged oil when the oil reserved in an oil pan(10) is discharged.

Description

Structure of oil drain plug {Oil drain plug apparatus}

The present invention relates to a structure of an oil drain plug, and more particularly, to prevent oil from splashing to an operator's body or a workplace in the process of discharging waste oil for oil change in an oil pan, and to easily control the discharge of oil. It relates to the structure of the oil drain plug to make.

In general, friction parts such as pistons, connecting rods, valve adjusters, and bearings of various parts of the engine of automobiles must be supplied with oil for lubrication for smooth operation. To this end, an oil pan for storing oil supplied to each friction part of the engine is mounted to the lower part of the cylinder block.

FIG. 6 is a view illustrating a conventional general oil pan 10, in which a tank 11 having a predetermined storage space for storing oil is formed, and transferring suction force of an oil pump to the inside of the tank 11. The oil strainer 12 is formed to receive the oil is absorbed.

The oil strainer 12 and the oil pump are connected by a pipe 13, which is located near the bottom of the tank 11. One side of the tank 11 is formed with an oil gauge for measuring the amount of oil. In addition, an oil discharge hole 14 for discharging oil is formed in the lower surface of the tank 11, and the drain plug 15 is mounted in the oil discharge hole 14.

On the other hand, when the oil stored in the general oil pan configured as described above is consumed and reduced below an appropriate level, the oil pressure drops. In this case, the oil pressure sensor attached to the engine detects a drop in the oil pressure, The attached oil pressure warning light will light. Therefore, the driver should check the oil level according to the warning of the oil pressure warning light and replenish the oil when the oil is low.

In addition, after driving the vehicle for a predetermined period or more, the viscosity of the engine may be degraded or contaminated, thereby preventing the engine oil from fulfilling its role. Therefore, the driver or mechanic of the vehicle should periodically replace the oil in the oil pan with new oil.

When the oil is exchanged in this way, the operator opens the drain plug 15 provided at one side of the oil pan 10 so that the oil stored in the oil pan 10 and each part of the engine is completely discharged. After the waste oil is completely discharged, fresh oil is replenished through an oil filler neck located above the rocker cover of the engine.

However, in the process of discharging the oil in the oil pan as described above, when the operator opens the drain plug, the oil stored in the oil pan is discharged to the outside of the oil pan at once and splashed into the clothes of the worker, in which case the oil is hot. There was a risk of injury to the operator. In addition, there is a problem that it is difficult to discharge the oil little by little when replenishing the oil pan excessively. In particular, in recent years, simple maintenance, such as the replacement of the engine oil is a situation that the number of self-directed driver directly by the driver is gradually increasing, the situation that must actively prepare for the above-described accident.

Therefore, the present invention has been made to solve the above problems, prevents oil splashing to the body or workplace of the worker in the process of discharging the waste oil for oil exchange in the oil pan, it is easy to control the discharge of oil It is an object of the present invention to provide an oil drain plug structure.

The present invention as a means for achieving the above object,

In the oil drain plug is formed in the lower portion of the oil pan that is installed in the lower part of the engine and stores the engine oil for lubricating the engine parts,

A bolt hole having a separate thread is provided inside the end of the oil drain plug, and a rubber sub-valve is fitted into the bolt hole, and a wing part easily bent in one direction is formed in the middle of the sub-valve. It is done.

1 is a block diagram of an oil drain plug according to the present invention.

Figure 2 is an open view of the oil drain plug according to the present invention.

3 is a cross-sectional view of an oil drain plug according to another embodiment of the present invention.

4 and 5 is an open state diagram of the oil drain plug according to another embodiment of the present invention.

6 is a view for explaining a conventional technology.

※ Explanation of code for main part of drawing

10: oil pan 14: drain hole

20: oil drain plug 22: bolt hole

30: sub valve 32: valve surface

34: annular groove 36: oil nozzle

40: wire strap 42: tool

Hereinafter, with reference to the accompanying drawings, preferred embodiments according to the configuration and operation of the oil drain structure according to the present invention will be described in detail.

1 is a configuration diagram of an oil drain plug according to the present invention, Figure 2 is an open state diagram of the oil drain plug according to the present invention, Figure 3 is a cross-sectional view of the oil drain plug according to another embodiment of the present invention, 5 is an open state diagram of an oil drain plug according to another embodiment of the present invention.

Reference numeral 20 shown in the drawing indicates an oil drain plug according to the present invention, and reference numeral 30 indicates a sub valve according to the present invention.

The oil drain plug 20 blocks the drain hole 14 for discharging the stored oil in the oil pan 10 to the outside, and has a thread on its outer circumferential surface to be screwed into the drain hole 14. Is formed.

However, a bolt hole 22 having a separate thread is formed inside the end of the oil drain plug 20, and the thread of the bolt hole 22 is opposite to the thread formed in the drain hole 14. Is formed. In addition, the bolt hole 22 is equipped with a sub-valve 30 to be manufactured separately, the sub-valve 30 is formed of an elastic rubber material so as to be forcibly fitted into the drain hole (14). The direction of the thread formed in the threaded portion of the sub valve 30 is formed in a direction opposite to the direction of the thread formed on the outer circumferential surface of the oil drain plug 20.

An annular protruding valve face 32 is formed in the middle of the sub valve 30, and the valve face 32 is forcibly inserted into the drain hole 14 when the oil drain plug 20 is mounted in the fitting direction. To lose. Therefore, the valve surface 32 is in close contact with the inner surface of the drain hole 14 when the oil drain plug 20 is pulled in the detachable direction, and serves to temporarily block the drain hole 14. In particular, in order to allow the valve surface 32 to be easily bent on only one side, it is preferable that an annular groove 34 is formed on the boundary between the valve surface 32 and the threaded portion.

In particular, it is preferable that the oil nozzle 36 penetrates through the longitudinal center of the sub-valve 30, which can be used to control the discharge of oil in the process of discharging the oil stored in the oil pan 10. will be.

A process of mounting the oil drain plug 20 in which the sub valve 30 is installed to the drain hole 14 of the oil pan 10 will be described as follows.

The threaded portion of the sub valve 30 is inserted into the bolt hole 22, and then the oil drain plug 20 is screwed into the drain hole 14. At this time, since the oil drain plug 20 and the screw thread are formed in the opposite direction, the sub-valve 30 is prevented from being rotated and loosened in the process of mounting the oil drain plug 20.

The process of opening the oil drain plug 20 when discharging the waste oil in order to replace the oil in the oil pan 10 is performed as follows.

First, when the oil drain plug 20 is turned in the release direction, the oil drain plug 20 is separated from the drain hole 14. At this time, the valve surface 32 of the sub-valve 30 is in close contact with the inner surface of the drain hole 14, so that oil is not discharged.

Then, when the operator pulls the oil drain plug 20 outward for the purpose of draining oil, the valve face 32 is bent backward and the sub valve 30 is released from the drain hole 14. . Accordingly, the waste oil in the oil pan 10 is discharged.

On the other hand, when oil is overcharged in the oil pan 10 and the oil of a predetermined amount needs to be discharged, what is necessary is as follows.

First, the oil drain plug 20 is first rotated in the disengagement direction to disengage. Then, the middle of the threaded portion of the sub-valve 30 is tied with a separate wire strap 40 so that the oil nozzle 36 is closed, and the oil drain plug 20 is separated from the sub-valve 30. Be sure to

After the oil drain plug 20 is removed, the oil nozzle 36 whose middle is closed by the tightening force of the wire strap 40 by pressing both ends of the wire strap 40 using a tool 42 such as a pliers. Then, a small amount of oil is discharged through the oil nozzle 36. After the desired amount of oil is discharged, the worker has the above-mentioned wire strap 40 being tightened with the tool 42. Place both ends of the oil nozzle 36 so that it closes again.

Finally, the oil drain plug 20 may be mounted on the sub valve 30, and then the oil drain plug 20 may be coupled to the drain hole 14.

As described above, the oil drain plug 20 according to the present invention can solve many of the conventional problems generated in the process of discharging the oil from the oil pan 10, thereby making it easier for workers to replace the oil. Increased.

The present invention configured as described above can reduce the phenomenon that the waste oil splashes to the worker or the workplace in the process of replacing the engine oil, and is provided in the sub-valve when the oil is overcharged in the oil pan to remove only a part of the oil There is a great advantage that it is easy to discharge as much oil as necessary through the oil nozzle to provide a lot of convenience to the operator.

Claims (3)

In the oil drain plug is formed in the lower portion of the oil pan that is installed in the lower part of the engine and stores the engine oil for lubricating the engine parts, A bolt hole 22 having a separate thread is provided inside the end of the oil drain plug 20, and a rubber sub valve 30 is inserted into the bolt hole 22, and the sub valve 30 is inserted therein. The structure of the oil drain plug, characterized in that the middle portion of the) is formed to protrude an annular valve surface 32 easily bent in one direction only. The method of claim 1, The direction of the thread formed on the outer circumferential surface of the oil drain plug 20 and the direction of the thread of the sub valve 32 filled in the bolt hole 22 are formed in opposite directions. . The method of claim 1, The structure of the oil drain plug, characterized in that the penetrating oil nozzle 36 is formed in the longitudinal center of the sub-valve (30).