CN104131858B - Oil pan drain device - Google Patents
Oil pan drain device Download PDFInfo
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- CN104131858B CN104131858B CN201410309387.9A CN201410309387A CN104131858B CN 104131858 B CN104131858 B CN 104131858B CN 201410309387 A CN201410309387 A CN 201410309387A CN 104131858 B CN104131858 B CN 104131858B
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- hole
- boss
- alignment pin
- limiting unit
- push rod
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Abstract
The invention provides an oil pan drain device which comprises a connector body, an ejector rod and a stopper. The connector body is provided with a through hole in the center, the ejector rod is disposed in the through hole, the stopper is connected to the top side of the ejector rod, and the ejector rod is movably connected with the connector body axially. Sections of the stopper and the through hole are reduced gradually from top to bottom, and the maximum cross section of the stopper is of the same shape with the maximum cross section of the through hole. When the stopper and the through hole coincide, a continuous passage running through from top to bottom is formed in the through hole. With the oil pan drain device, a small quantity of engine oil can be drained for quality testing, so that engine oil changing time can be controlled more accurately and economic loss caused by engine oil changing is lowered. During engine oil draining, flow direction of the engine oil can be controlled to effectively avoid environmental pollution caused by jetting of the engine oil. Besides, during engine oil draining, detachment of the drain plug is omitted, and mechanical abrasion of the drain plug due to repeated detachment is avoided, thus service life of the drain plug is prolonged.
Description
Technical field
The invention belongs to automobile body part technical field, it is related to a kind of oil sump and drains the oil part.
Background technology
What automobile oil pan purge cock was commonly used at present is the spherical shell that head is outer six sides, and this structure compares
Relatively simple, but uncontrollable machine oil flow direction after dismounting, easily spray dirty everywhere, this structure need to be dismantled using conventional tool,
And repeatedly dismantle easily appearance damage or skid, scrappage is higher.
The Chinese utility model patent of Application No. 200820041355.5 disclosed in 14 days October in 2009 " drain the oil by one kind
Structure described in plug screw ", on the external cylindrical surface of the end of purge cock body, if the backing pin of projection, in the corresponding positions of spiro pluging hole
Install the backing pin straight runner coordinating with it and the backing pin circumference chute being attached thereto, backing pin straight runner parallel to plug screw axially bored line,
Backing pin circumference chute is a part for spiro pluging hole circular arc.Although this structure controls machine oil flow direction, can be without handss in whole process
Contact plug screw, improves the efficiency changed oil.But, this technique still cannot avoid repeatedly dismantling damage and the skidding that plug screw causes.
Content of the invention
It is an object of the invention to provide a kind of jettison gear of can not dismantling can achieve the device drained the oil.
In order to achieve the above object, the solution of the present invention is：
A kind of oil sump jettison gear, described device includes central authorities to be had the connection body of through hole, is located in described through hole
Push rod and the block being connected to described push rod top side；Described push rod is axially flexibly connected with described connection body；Wherein, institute
The section stating block and described through hole is and is gradually reduced from top to bottom, and the maximum cross section of described block and described through hole
Maximum cross-sectional shape is identical, and when overlapping, described jettison gear has the continuous passage of up/down perforation in described through hole.
Described device also includes the first position-limiting unit, to prevent described push rod from departing from institute towards the direction of described via bottoms
State through hole；Elastomeric element and be located at and described connect on body and the elastomeric element spacing list fixing with the top of described elastomeric element
Unit；And second position-limiting unit, to limit or to discharge the length of described elastomeric element.
First position-limiting unit is included positioned at the first alignment pin of described push rod outer wall with positioned at described connection inner body wall
First boss；First boss from described connect body inwall to described through hole in extend；Horizontal position outside first alignment pin
Put and be in first boss beyond the horizontal level of described through hole one end；It is spacing that first alignment pin and first boss are located at second
The same side of unit, and it is located at the same side of described elastomeric element and described elastomeric element position-limiting unit.
Second position-limiting unit includes the second alignment pin on described push rod and is located at and described connects the of inner body wall
Two boss；Second boss from described connect body inwall to described through hole in extend, the second alignment pin be concertina type alignment pin,
Telescopic direction is the radial direction of described push rod；Second alignment pin when width is minimum outside horizontal level be located at second boss
Within the horizontal level of described through hole one end；And the horizontal level outside when width is maximum then to surmount second boss close
The horizontal level of described through hole one end；Second alignment pin is located at the same side of the first position-limiting unit with second boss, and is located at institute
State elastomeric element and the same side of described elastomeric element position-limiting unit.
Described elastomeric element is spring, is sheathed on described push rod, and top is fixing end, the spacing list with described elastomeric element
Unit is fixedly connected, and bottom is movable end, contacts described second position-limiting unit；Described elastomeric element position-limiting unit is spring base, Gu
On described connection body.
Described oil sump jettison gear also includes being connected to the operation lid of described push rod bottom.
Described connection body is cylindric.
The described periphery connecting body has screw thread.
Described connection body is bolt.
Described connection body is plug screw.
Due to adopting such scheme, the invention has the beneficial effects as follows：The present invention can first release a small amount of machine oil detection oil product,
Thus being precisely controlled the time changing machine oil, reduce the economic loss that too early replacing machine oil causes；Putting machine oil simultaneously
When can control the flow direction of machine oil, effectively prevent the environmental pollution that oil injection causes；Meanwhile, the present invention when putting machine oil not
Jettison gear need being dismantled, thus avoiding the mechanical wear repeatedly dismantling the jettison gear causing, extending jettison gear
Service life；Additionally, in latter stage of draining the oil, machine oil discharges totally substantially, because oil sump is closure mechanism, pressing operation repeatedly
Lid, will produce certain negative pressure in oil sump, discharge totally beneficial to by machine oil.
Brief description
Fig. 1 is the structural representation that in the embodiment of the present invention, oil sump jettison gear is closed；
Fig. 2 is the sectional view at A-A visual angle in Fig. 1；
Fig. 3 is the structural representation that in the embodiment of the present invention, oil sump jettison gear is in open mode；
Fig. 4 is the sectional view at the B-B visual angle of Fig. 3.
In accompanying drawing：1st, purge cock lid；2nd, first boss；3rd, the first alignment pin；4th, push rod；5th, the second alignment pin；6th,
Two boss；7th, return spring；8th, spring base；9th, block；10th, screw thread；11st, purge cock body.
Specific embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the present invention is further illustrated.
The present invention proposes a kind of oil sump jettison gear, and this device includes centre and has through hole and for oil sump even
Connect connects body, the push rod being located in this through hole and the block being connected to push rod top side.Put with oil sump in the present embodiment
Illustrate as a example whelk plug, now connecting body is the middle plug screw with through hole, and therefore it is peripheral screwed circle
Column structure, accordingly also has screw in oil sump, the screw thread in screw is coordinated with plug screw outer periphery threads, and this oil sump is drained the oil
Plug screw is connected in this corresponding screw in the oil sump.
Fig. 1 show structural representation when this oil drain plug of oil pan is closed, and Fig. 2 is A-A visual angle in Fig. 1
Sectional view.Wherein, purge cock body 11 is to connect body, and 10 is its screw thread, and 4 is push rod, and 9 is block.This purge cock
Also include first boss 2 and the first alignment pin 3.First boss 2 is located on the inwall of purge cock body 11, from purge cock originally
The inwall of body 11 extends into through hole；First alignment pin 3 is located on the outer wall of push rod 4, and first boss 2 is located at the first alignment pin
3 lower section.Wherein, the horizontal level in the first alignment pin 3 outside be in the horizontal level near through hole one end for the first boss 2 with
Outward, thus when push rod 4 axially moves, because first boss 2 blocks the first alignment pin 3, thus push rod 4 a pole
The spacing position being set to when first boss 2 is contacted with the first alignment pin 3, therefore push rod 4 cannot take off towards the direction of via bottoms
From through hole.
This purge cock also includes the second alignment pin 5, second boss 6, spring 7 and spring base 8.Second alignment pin 5 is located at
On the outer wall of push rod 4, it is concertina type bayonet lock, can be along the radial expansion of push rod 4, you can make horizontal extension；Second boss 6
On the inwall of purge cock body 11, extend in the inwall of purge cock body 11 is to through hole.Wherein, the second alignment pin 5
Maximum in width, that is, be in elongation limit state when its outside horizontal level surmount second boss 6 near through hole one end
Horizontal level；And, horizontal position when that is, it be in the limit state of shortening, it outside minimum in the second alignment pin 5 width
In second boss 6 within the horizontal level of through hole one end.Thus, when the longitudinal force suffered by push rod 4 is sufficiently large, due to
The contraction of two alignment pins 5, the second alignment pin 5 can against the apparent motion of second boss 6, therefore can cross over second boss
6 move downwards or upwards (depending on the direction of longitudinal force on push rod 4)；Conversely, as the second alignment pin 5 is extending over one
Determine the horizontal level outside during degree and surmounted the horizontal level near through hole one end for the second boss 6, when acting on push rod 4
Down thrust not big, and the second alignment pin 5 already at second boss 6 top when, the second alignment pin 5 will be by second boss
6 block, thus push rod 4 is also stuck.
Spring base 8 is fixed on purge cock body 11, and return spring 7 is sheathed on push rod 4, and top is fixed on spring
On seat 8, bottom is movable end, contacts with the second alignment pin 5.Therefore, if the second alignment pin 5 is stuck by second boss 6, then return
Position spring 7 be locked, thus stuck between the second alignment pin 5 and spring base 8.If the second alignment pin 7 is by push rod axial direction
Push and dynamic down move through the surface of second boss 6 from second boss more than 6, then return spring 7 is unlocked.
Above-mentioned first alignment pin 3 and first boss 2 are positioned at the same side of the second spacer pin 5 and second boss 6, and are located at back
Position spring 7 and the same side of spring base 8.Equally, the second alignment pin 5 and second boss 6 are located at the first alignment pin 3 and first boss
2 the same side, and it is located at the same side of return spring 7 and spring base 8.
In order to realize the pass of oil passageway and close, the sectional area of block 9 and through hole is gradually reduced from top to bottom, and block 9
Maximum cross section and through hole maximum cross section (i.e. both are located at the cross section on top) identical, and when both overlap
When, the cross-sectional area that block 9 is highly gone up at other is less than the identical cross-sectional area highly going up through hole, now this purge cock
There is in through hole the continuous passage of up/down perforation, i.e. oil drain canal.Therefore, when the top surface of block 9 is overlapped with the top surface of through hole
When, oil drain canal is blocked；Moved upwards when block 9 promotes with push rod 4, and make the top in through hole for the top surface of block 9
When on face, the oil drain canal between block 9 and purge cock body 11 is opened.
The present embodiment also includes the purge cock lid 1 (being used for the operation lid of operation) being connected to push rod 4 bottom.
When pressing purge cock lid 1, push rod 4 is promoted to move upwards so that second boss 6 crossed by the second alignment pin 5, due to
The position-limiting action to the second alignment pin 5 for the second boss 6, return spring 7 is locked between spring base 8 and the second alignment pin 5.This
When, the top surface of push rod 4 is pushed out through hole, thus oil drain canal.The structure that Fig. 3 show now oil drain plug of oil pan is shown
It is intended to, Fig. 4 is the sectional view on B-B visual angle in Fig. 3.Arrow in Fig. 3 represents flow direction in oil drain canal for the machine oil.
Press purge cock lid 1 again, promote push rod 4 to move up, return spring 7 is compressed.Relieving is applied to drains the oil
After thrust on plug screw lid 1, the thrust suffered by push rod 4 disappears, and return spring 7 can be to the downward elastic thrust of the second alignment pin 5
Make the second alignment pin 5 cross second boss 6 to move downward, this downward motion is because first boss 2 is to the first alignment pin 3
Spacing and limit.Now, the top of block 9 is overlapped with the top of through hole, thus oil drain canal is blocked, as shown in Figure 1.
The invention is not restricted to the content described in the present embodiment, some of which structure, annexation, position relationship etc. can have
Other variants, such as purge cock can also be oil discharge screw etc..
The present invention can first release a small amount of machine oil detection oil product, thus being precisely controlled the time changing machine oil, reduces
Too early change the economic loss that machine oil causes；The flow direction of machine oil can be controlled when putting machine oil, effectively prevent oil injection
The environmental pollution causing；Meanwhile, the present invention need not dismantle jettison gear when putting machine oil, thus avoid dismounting repeatedly causing
Jettison gear mechanical wear, extend the service life of jettison gear；Additionally, in latter stage of draining the oil, machine oil discharges dry substantially
Only, because oil sump is closure mechanism, pressing operation lid (the purge cock lid as in embodiment), will produce in oil sump repeatedly
Raw certain negative pressure, discharges totally beneficial to by machine oil.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and apply this
Bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without through performing creative labour.Therefore, the invention is not restricted to enforcement here
Example, according to the announcement of the present invention, the improvement made without departing from scope and modification all should be for those skilled in the art
Within protection scope of the present invention.
Claims (8)
1. a kind of oil sump jettison gear it is characterised in that：Described device includes central authorities to be had the connection body of through hole, is located at institute
The block stated the push rod in through hole and be connected to described push rod top side；Axially activity connects for described push rod and described connection body
Connect；
Wherein, the section of described block and described through hole is and is gradually reduced from top to bottom, and the maximum cross section of described block
Identical with the maximum cross-sectional shape of described through hole, and when misaligned, described jettison gear has in described through hole up and down
The continuous passage of insertion；
Described device also includes the first position-limiting unit, to prevent described push rod from departing from described leading to towards the direction of described via bottoms
Hole；
Elastomeric element and be located at and described connect on body and the elastomeric element position-limiting unit fixing with the top of described elastomeric element；
And
Second position-limiting unit, to limit or to discharge the length of described elastomeric element；
Second position-limiting unit includes the alignment pin (5) on described push rod and is located at the described boss (6) connecting inner body wall；
Described boss (6) from described connect body inwall to described through hole in extend, described alignment pin (5) be concertina type alignment pin,
Telescopic direction is the radial direction of described push rod；
Described alignment pin (5) when width is minimum outside horizontal level be located at described boss (6) near described through hole one end
Within horizontal level；And the horizontal level outside when width is maximum then surmounts described boss (6) near described through hole one end
Horizontal level；
Described alignment pin (5) is located at the same side of the first position-limiting unit with described boss (6), and is located at described elastomeric element and institute
State the same side of elastomeric element position-limiting unit.
2. oil sump jettison gear according to claim 1 it is characterised in that：First position-limiting unit is included positioned at described top
First alignment pin of bar outer wall and the first boss being located at described connection inner body wall；First boss is in described connection body
Wall extends into described through hole；First boss is located at the lower section of the first alignment pin；
Horizontal level outside first alignment pin is in first boss beyond the horizontal level of described through hole one end；
First alignment pin is located at the same side of the second position-limiting unit with first boss, and is located at described elastomeric element and described elasticity
The same side of part position-limiting unit.
3. oil sump jettison gear according to claim 1 it is characterised in that：Described elastomeric element is spring, is sheathed on
On described push rod, top is fixing end, is fixedly connected with described elastomeric element position-limiting unit, and bottom is movable end, and contact is described
Second position-limiting unit；Described elastomeric element position-limiting unit is spring base, is fixed on described connection body.
4. oil sump jettison gear according to claim 3 it is characterised in that：Described oil sump jettison gear is also included even
It is connected to the operation lid of described push rod bottom.
5. oil sump jettison gear according to claim 1 it is characterised in that：Described connection body is cylindric.
6. oil sump jettison gear according to claim 1 it is characterised in that：The described periphery connecting body has spiral shell
Stricture of vagina.
7. oil sump jettison gear according to claim 1 it is characterised in that：Described connection body is bolt.
8. oil sump jettison gear according to claim 1 it is characterised in that：Described connection body is plug screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410309387.9A CN104131858B (en) | 2014-07-01 | 2014-07-01 | Oil pan drain device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410309387.9A CN104131858B (en) | 2014-07-01 | 2014-07-01 | Oil pan drain device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104131858A CN104131858A (en) | 2014-11-05 |
| CN104131858B true CN104131858B (en) | 2017-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410309387.9A Active CN104131858B (en) | 2014-07-01 | 2014-07-01 | Oil pan drain device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104131858B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058748B (en) * | 2018-08-17 | 2020-08-25 | 温州联睿工业产品设计有限公司 | Automobile maintenance auxiliary oil changing equipment for automobile materials |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7611937U1 (en) * | 1976-04-15 | 1976-09-02 | 4630 Bochum | VALVE DEVICE FOR DRAINING LIQUIDS |
| CN2639209Y (en) * | 2003-08-14 | 2004-09-08 | 刘建华 | Fuel outlet valve |
| CN202370614U (en) * | 2011-12-23 | 2012-08-08 | 泰豪科技股份有限公司 | Portable oil drainage device |
| CN102877914B (en) * | 2012-10-25 | 2016-01-06 | 浙江吉利汽车研究院有限公司杭州分公司 | A kind of convenient oil discharge screw observing oil product |
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2014
- 2014-07-01 CN CN201410309387.9A patent/CN104131858B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104131858A (en) | 2014-11-05 |
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