CN104179545A - Oil drain plug for engine sump - Google Patents
Oil drain plug for engine sump Download PDFInfo
- Publication number
- CN104179545A CN104179545A CN201410410425.XA CN201410410425A CN104179545A CN 104179545 A CN104179545 A CN 104179545A CN 201410410425 A CN201410410425 A CN 201410410425A CN 104179545 A CN104179545 A CN 104179545A
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- CN
- China
- Prior art keywords
- threaded stem
- oil drain
- center hole
- axial center
- drain plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an oil drain plug for an engine sump. The oil drain plug comprises a screw plug head, a threaded rod and a seal gasket between the screw plug head and the threaded rod, a permanent magnet is arranged in the threaded rod, the screw plug head, the threaded rod and the seal gasket are in an integral structure and made of stainless steel, the threaded rod is provided with an axial center hole, the diameter of the axial center hole is 0.3-0.35 times of the outer diameter of the threaded rod, the permanent magnet comprises a rod portion and an end face portion, the rod portion is inserted in the axial center hole, and the end face portion is arranged at the outer end of the rod portion. Therefore, the oil drain plug for the engine sump is simple in structure, and unnecessary troubles caused by scrap iron attracted by the outer wall of the threaded rod can be avoided.
Description
Technical field
The present invention relates to technical field of engines, particularly relate to a kind of oil drain plug for engine sump tank.
Background technique
Engine sump tank is the shell of sealing crankcase as oil storage tank, prevents that impurity from entering, and collects and store the lubricant oil being flowed back to by the each friction surface of diesel engine.On engine sump tank, be provided with oil drain plug, while changing oil, be used for emitting dirty oil, there is at present a kind of magnetic oil drain plug, be used for adsorbing the iron filings in dirty oil, existing this oil drain plug is all to slot on screw rod, in groove, insert magnet, but existing this groove is too large, cause the wall of screw rod thin, magnet just may make the outer wall of screw rod also have adsorptive power, and iron adsorption, on screw rod outer wall, is backed out while draining the oil at screw rod, can impact back out smoothly, and iron filings on outer wall are backed out in process and can again be scraped in oil sump inside at screw rod.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of oil drain plug for engine sump tank, simple in structure, can avoid the outer wall absorption iron filings of screw rod to bring unnecessary trouble.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of oil drain plug for engine sump tank is provided, comprise: plug screw head, threaded stem, with be arranged on described plug screw head, gasket seal between threaded stem, in described threaded stem, be provided with permanent magnet, described plug screw head, threaded stem and gasket seal are integral type structure, and adopt stainless steel to make, described threaded stem is provided with axial center hole, the aperture of described axial center hole is 0.3 ~ 0.35 times of threaded stem external diameter, described permanent magnet comprises the bar portion being plugged in axial center hole and is arranged on the end face portion on bar portion outer end.
In a preferred embodiment of the present invention, the aperture of described axial center hole is 0.3 times of threaded stem external diameter.
In a preferred embodiment of the present invention, between described bar portion and axial center hole, be provided with plastics partition.
In a preferred embodiment of the present invention, described end face portion abuts on the end face of threaded stem.
The invention has the beneficial effects as follows: the present invention is for the oil drain plug of engine sump tank, simple in structure, can avoid the outer wall absorption iron filings of screw rod to bring unnecessary trouble.
Brief description of the drawings
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the structural representation of the present invention for oil drain plug one preferred embodiment of engine sump tank.
In accompanying drawing, the mark of each parts is as follows: 1, plug screw head, 2, threaded stem, 3, gasket seal, 4, axial center hole, 5, bar portion, 6, end face portion.
Embodiment
To the technological scheme in the embodiment of the present invention be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiments that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of oil drain plug for engine sump tank, comprise: plug screw head 1, threaded stem 2 and be arranged on the gasket seal 3 between described plug screw head 1, threaded stem 2, in described threaded stem 2, be provided with permanent magnet, described plug screw head 1, threaded stem 2 and gasket seal 3 are integral type structure, and adopt stainless steel to make, on described gasket seal 3, be provided with tooth engaged, strengthen sealability.
Described threaded stem 2 is provided with axial center hole 4, and the aperture of described axial center hole 4 is 0.3 ~ 0.35 times of threaded stem 2 external diameters, and the wall of threaded stem 2 is thicker like this, is just not easy adsorbing metal bits on outer wall.
Described permanent magnet comprises the bar portion 5 being plugged in axial center hole 4 and is arranged on the end face portion 6 on bar portion 5 outer ends.
Preferably, the aperture of described axial center hole 4 is 0.3 times of threaded stem 2 external diameters.
Between described bar portion 5 and axial center hole, be provided with plastics partition, this plastics partition can make the magnetic on threaded stem 2 outer walls further reduce, and is difficult for absorption iron filings.
Preferably, described end face portion 6 abuts on the end face of threaded stem 2.
The invention has the beneficial effects as follows: the present invention is for the oil drain plug of engine sump tank, simple in structure, can avoid the outer wall absorption iron filings of screw rod to bring unnecessary trouble.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. the oil drain plug for engine sump tank, it is characterized in that, comprise: plug screw head, threaded stem and be arranged on the gasket seal between described plug screw head, threaded stem, in described threaded stem, be provided with permanent magnet, described plug screw head, threaded stem and gasket seal are integral type structure, and adopt stainless steel to make, described threaded stem is provided with axial center hole, the aperture of described axial center hole is 0.3 ~ 0.35 times of threaded stem external diameter, and described permanent magnet comprises the bar portion being plugged in axial center hole and is arranged on the end face portion on bar portion outer end.
2. the oil drain plug for engine sump tank according to claim 1, is characterized in that, the aperture of described axial center hole is 0.3 times of threaded stem external diameter.
3. the oil drain plug for engine sump tank according to claim 1, is characterized in that, between described bar portion and axial center hole, is provided with plastics partition.
4. the oil drain plug for engine sump tank according to claim 1, is characterized in that, described end face portion abuts on the end face of threaded stem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410410425.XA CN104179545A (en) | 2014-08-20 | 2014-08-20 | Oil drain plug for engine sump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410410425.XA CN104179545A (en) | 2014-08-20 | 2014-08-20 | Oil drain plug for engine sump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104179545A true CN104179545A (en) | 2014-12-03 |
Family
ID=51960855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410410425.XA Pending CN104179545A (en) | 2014-08-20 | 2014-08-20 | Oil drain plug for engine sump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104179545A (en) |
-
2014
- 2014-08-20 CN CN201410410425.XA patent/CN104179545A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141203 |