CN108644208A - A kind of engine oil discharge screw - Google Patents
A kind of engine oil discharge screw Download PDFInfo
- Publication number
- CN108644208A CN108644208A CN201810747528.3A CN201810747528A CN108644208A CN 108644208 A CN108644208 A CN 108644208A CN 201810747528 A CN201810747528 A CN 201810747528A CN 108644208 A CN108644208 A CN 108644208A
- Authority
- CN
- China
- Prior art keywords
- shrinkage pool
- magnet
- oil discharge
- discharge screw
- oil
- 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
Links
- 239000010705 motor oil Substances 0.000 title claims abstract description 24
- 239000003921 oil Substances 0.000 abstract description 54
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 24
- 229910052742 iron Inorganic materials 0.000 abstract description 12
- 238000001179 sorption measurement Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 20
- 239000002184 metal Substances 0.000 description 20
- 229910052751 metal Inorganic materials 0.000 description 20
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000013475 authorization Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to a kind of engine oil discharge screws, including bolt head and threaded shank, the end far from the bolt head is recessed inwardly to form shrinkage pool in the threaded shank, the shrinkage pool bottom is provided with magnet, the height of the magnet is less than the depth of the shrinkage pool, and the magnet circumferential surface is alternate with the inner wall of the shrinkage pool at a certain distance.Since magnet circumferential surface is alternate with the inner wall of shrinkage pool at a certain distance, on the one hand, not only magnet outer end face is contacted with oil, but also the entire circumferential surface of magnet is also able to contact with oil, and the contact area of magnet and oil is big, this improves the adsorption capacity of magnet；On the other hand, the space between magnet circumferential surface and shrinkage pool inner wall is that the iron filings for being not easy to be adsorbed by the space of oil impact within this space are not easy to be impacted and dropped out from shrinkage pool by oil, this improves the adsorption effect of oil discharge screw.
Description
Technical field
The present invention relates to a kind of bolts, more particularly to a kind of engine oil discharge screw.
Background technology
Engine sump tank oil discharge screw is can to flow completely out oil sump for machine oil during engine maintaining to be arranged,
Oil discharge screw usually requires have following functions：1, good sealing effect；2, surface anti-corrosion；3, adsorbing metal is miscellaneous well
Matter.
In order to enable oil discharge screw adsorbing metal impurity（Predominantly iron filings）, oil discharge screw is usually used into magnetic material
It is made or is arranged in oil discharge screw magnet.But if the iron filings of absorption are located at the outside of oil discharge screw, iron filings still can
It is fallen due to the impact of oil.Authorization Notice No. is that the Chinese patent document of CN207145033U discloses one kind " for vehicle
The bolt shank of the oil discharge screw and engine of oil sump ", the oil discharge screw is made of magnetic material；But its presence lacks
Point, the outer weekly assembly of magnetic bolt shank adsorb iron filings, the iron filings at this due to being exposed to outside, iron filings be easy by oil impact and
It falls in oil again.Authorization Notice No. is that the Chinese patent document of CN203925662U also discloses that " a kind of oil discharge screw ",
Threaded shank end is equipped with shrinkage pool, and permanent magnet is equipped in shrinkage pool；But due to permanent magnet when mounted with the end of oil discharge screw
Face maintains an equal level, and the iron filings of absorption are still located on the outside of oil discharge screw, and iron filings are easy to be fallen by the impact of oil during draining the oil
It falls.Authorization Notice No. is that the Chinese patent document of CN205663479U discloses " a kind of oil discharge screw " again, at the end of threaded shank
Portion is provided with mounting hole, and permanent magnetic is arranged in mounting hole, and the height of this permanent magnetic is less than the depth of mounting hole so that in screw rod
Portion end forms a placed cavity, and placed cavity, which accommodates iron filings, prevents oily impact；But it still has disadvantage, due to permanent magnetic
It is limited with the contact area of oil, cause the adsorption capacity of permanent magnetic unsatisfactory.
Invention content
The invention aims to provide a kind of engine oil discharge screw, how solve enables engine oil discharge screw more
Well the problem of adsorbing metal impurity.
In order to achieve the above objectives, the technical solution adopted by the present invention is：
It is separate described in the threaded shank the present invention provides a kind of engine oil discharge screw, including bolt head and threaded shank
The end of bolt head is recessed inwardly to form shrinkage pool, and the shrinkage pool bottom is provided with magnet, and the height of the magnet is less than described
The depth of shrinkage pool, the magnet circumferential surface are alternate with the inner wall of the shrinkage pool at a certain distance.
Optimally, the volume of the magnet and the ratio between the volume in space of the inner wall is extended laterally to from the circumferential surface be
1：1~2：1.
Optimally, the shrinkage pool has the multiple and perpendicular cross section of the engine oil discharge screw axial line, exists
The area of plane of cross section is less than the base area of the shrinkage pool.
Further, the area of the cross section gradually subtracts from the shrinkage pool bottom on the opening direction of the shrinkage pool
It is small.
Further, circle protrusion is provided on the inner wall, the magnet is located at plane and described where the protrusion
Between bottom surface.
Further, the shrinkage pool closes on the cross-sectional area of opening and is gradually reduced on direction from inside to outside.
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
A kind of engine oil discharge screw of the present invention, since magnet circumferential surface is alternate with the inner wall of shrinkage pool at a certain distance, on the one hand,
Not only magnet outer end face is contacted with oil, but also the entire circumferential surface of magnet is also able to contact with oil, and the contact area of magnet and oil is
Big, this improves the adsorption capacity of magnet；On the other hand, since magnet circumferential surface is alternate with the inner wall of shrinkage pool at a certain distance,
Therefore the space of a receiving metal impurities is formd between magnet circumferential surface and shrinkage pool inner wall, this is one and is not easy to be rushed by oil
The space hit, the iron filings adsorbed within this space are not easy to be impacted and dropped out from shrinkage pool by oil, this improves oil discharge screw
Adsorption effect.
Description of the drawings
Some specific embodiments that the invention will be described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing：
Fig. 1 is the stereoscopic schematic diagram according to a kind of engine oil discharge screw embodiment of the present invention 1；
Fig. 2 is the sectional view that embodiment illustrated in fig. 1 passes through axial line section；
Fig. 3 is the sectional view by axial line section according to a kind of engine oil discharge screw embodiment of the present invention 2；
Fig. 4 is the sectional view by axial line section according to a kind of engine oil discharge screw embodiment of the present invention 3；
Fig. 5 is the sectional view by axial line section according to a kind of engine oil discharge screw embodiment of the present invention 4；
Wherein, the reference numerals are as follows：
1, bolt head；11, ring flange；111, flange face；
2, threaded shank；21, shrinkage pool；211, bottom surface；212, inner wall；213, it is open；22, ontology；221, raised；
3, magnet；31, circumferential surface；32, top surface.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other at conflict.
Embodiment 1
As depicted in figs. 1 and 2, engine oil discharge screw includes bolt head 1 and threaded shank 2, and bolt head 1 is held for spanner
With stopper oil sump, threaded shank 2 is used to be screwed and adsorbing metal impurity（Mainly iron filings）.
The spanner snap fit of bolt head 1 can be that cross, linear type, interior hexagon or outer-hexagonal shape etc. are various often
Shape is advised, there is no particular restriction for shape, using cross in the present embodiment.Bolt head 1 also has ring flange 11, flange
Disk 11 is for stopper gasket or direct stopper in oil sump.In other technical solutions, flange of the ring flange 11 towards oil sump
One circle storage tank can also be set on face 111 for placing sealing ring.
Threaded shank 2 is wholely set with bolt head 1, and threaded shank 2 extends from ring flange 11 to remote, and threaded shank 2 includes ontology
22 and shrinkage pool 21.22 shape substantially cylindrical of ontology, the border of ontology 22 is formed with screw thread.In threaded shank 2 far from bolt head
The end in portion 1 is recessed inwardly to form shrinkage pool 21, and shrinkage pool 21 is the blind hole of cylinder.And the depth of shrinkage pool 21 is less than the length of ontology 22
Degree, such ontology 22 are solid close to the part of bolt head 1, this makes oil discharge screw have good intensity.Other technologies
In scheme, shrinkage pool 21 is not necessarily cylindrical hole, other shapes of hole is can also be, such as square column shape, six box type column shapes
Deng there is no particular restriction for shape.The inner wall 212 of the about horizontal plane in the bottom surface 211 of shrinkage pool 21, shrinkage pool 21 is arc surface shape
Shape.Shrinkage pool 21 has the multiple and perpendicular cross of engine oil discharge screw axial line on the direction of opening 213 from its bottom surface 211
Section, since shrinkage pool 21 is cylinder in the present embodiment, the area of all cross sections is equal.
Magnet 3 is provided in shrinkage pool 21, magnet 3 is permanent magnet, and magnet 3 is arranged at the center of bottom surface 211, magnet 3
Shape be cylinder.In other technical solutions, the shape of magnet 3 can also be that square column shape, six box type column shapes etc. are conventional
Shape.Magnet 3 has circumferential surface 31 and top surface 32.The height of magnet 3 is less than the depth of shrinkage pool 21 namely top surface 32 does not reach shrinkage pool 21
Opening 213, the space between top surface 32 and opening 213 can be used for accommodating metal impurities, and the metal in the space
Impurity makes metal impurities be not easy to be washed away by oil due to the protective effect of side ontology 22（Shrinkage pool 21 is opened in oil）.Such as figure
2, circumferential surface 31 is alternate with inner wall 212 at a certain distance, in the space that circumferential surface 31 extends laterally to inner wall 212, also has oil and fills
Enter wherein, at this moment the circumferential surface 31 of magnet 3 is contacted with oil namely circumferential surface 31 and top surface 32 are contacted with oil, at this moment magnet 3 and oil
Contact area is big, so magnet 3 can largely adsorb the metal impurities in oil, improves the adsorption energy of magnet 3
Power.Also, due to 3 circumferential surface of magnet absorption metal impurities be extended laterally in the space of inner wall 212 in circumferential surface 31, and by
It is in deeper position in shrinkage pool 21 in the space, and magnet 3 can stop the impact force of oil so that the metal in the space is miscellaneous
Matter is not easy to be impacted and dropped out from shrinkage pool 21 by oil, and which further improves the absorption of the metal impurities of engine oil discharge screw to imitate
Fruit.
A balance is needed between the volume in the space that the volume and circumferential surface 31 of magnet 3 extend laterally to inner wall 212, if
The volume of magnet 3 is excessive, then the spatial volume that circumferential surface 31 extends laterally to inner wall 212 will be less than normal, space is less than normal to be unfavorable for
Enough adsorbing metal impurity；If the volume of magnet 3 is too small, the adsorption capacity of magnet 3 is not big enough, is equally unfavorable for ADSORPTION OF GOLD
Belong to impurity.In the present embodiment, it is about 1 that volume and the circumferential surface 31 of magnet 3, which extend laterally to the ratio between volume in space of inner wall 212,：
1, in other technical solutions, which can also be other values certainly, but if the ratio is 1：1 to 2：In the range of 1（Packet
Include 1：1 and 2：1）When, the storing ability that the adsorption magnetic force and circumferential surface 31 of magnet 3 extend laterally to the space of inner wall 212 is preferable,
The two can reach good balance.
Embodiment 2
As shown in figure 3, embodiment 2 and the difference of embodiment 1 are, in embodiment 2, shrinkage pool 21 with the perpendicular cross section of axial line
Area be variation from top to bottom, which is open on 213 directions from 21 bottom of shrinkage pool to shrinkage pool and is gradually reduced,
I.e. shrinkage pool 21 is being to shrink from the flaring degree on the direction to outside inside it, and this results in truncated cone-shapeds as shown in Figure 3
Shrinkage pool 21.The advantages of this spline structure shrinkage pool 21 is that external oil influences to reduce on 21 internal impact of shrinkage pool, is adsorbed on magnet 3
Metal impurities are not easy to drop out shrinkage pool 21 by oil impact, improve the metal impurities adsorption capacity of engine oil discharge screw.
Embodiment 3
As shown in figure 4, embodiment 3 and the difference of embodiment 1 are, in embodiment 3, circle protrusion is provided on the inner wall of shrinkage pool 21
221, magnet 3 is located between raised 221 place planes and bottom surface 211.The advantages of protrusion 221 is equally that external oil is to shrinkage pool 21
Internal impact influences to reduce, and the metal impurities being adsorbed on magnet 3 are not easy to drop out shrinkage pool 21 by oil impact, improve engine
The metal impurities adsorption capacity of oil discharge screw.Also, embodiment 2 is compared, shrinkage pool 21 can store more gold in the present embodiment
Belong to impurity.
Embodiment 4
As shown in figure 5, embodiment 4 and the difference of embodiment 1 are, in embodiment 4, shrinkage pool 21 closes on the cross section face of opening 213
Product is gradually reduced on direction from inside to outside.The advantages of this spline structure shrinkage pool 21 is equally that external oil rushes 21 inside of shrinkage pool
It hits influence to reduce, the metal impurities being adsorbed on magnet 3 are not easy to drop out shrinkage pool 21 by oil impact, improve engine and drain the oil spiral shell
The metal impurities adsorption capacity of bolt.And embodiment illustrated in fig. 32 is compared, shrinkage pool 21 can store more metals in embodiment 4
Impurity；Compared to embodiment illustrated in fig. 43, embodiment 4 is easier to industry manufacture.
In Fig. 3 to embodiment illustrated in fig. 52 to embodiment 4, magnet 3 can be placed into shrinkage pool 21 and be fixed from outside
Onto bottom surface 211, the installation of magnet 3 is convenient.
Fig. 3 may be summarized to be to embodiment illustrated in fig. 52 to embodiment 4：Shrinkage pool 21 has multiple spiral shells of draining the oil with engine
The perpendicular cross section of bolt axial line, there are 211 areas of bottom surface that the area of plane of cross section is less than shrinkage pool 21.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention, all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of engine oil discharge screw, including bolt head（1）And threaded shank（2）, the threaded shank（2）The upper separate spiral shell
Bolt head（1）End be recessed inwardly to form shrinkage pool（21）, the shrinkage pool（21）Bottom is provided with magnet（3）, the magnet（3）
Height be less than the shrinkage pool（21）Depth, it is characterised in that：The magnet（3）Circumferential surface（31）With the shrinkage pool（21）It is interior
Wall（212）It is alternate at a certain distance.
2. a kind of engine oil discharge screw according to claim 1, it is characterised in that：The magnet（3）Volume and from
The circumferential surface（31）Extend laterally to the inner wall（212）The ratio between the volume in space be 1：1~2：1.
3. a kind of engine oil discharge screw according to claim 1, it is characterised in that：The shrinkage pool（21）With it is multiple with
The perpendicular cross section of the engine oil discharge screw axial line, there are the areas of plane of cross section to be less than the shrinkage pool（21）'s
Bottom surface（211）Area.
4. a kind of engine oil discharge screw according to claim 3, it is characterised in that：The area of the cross section is from institute
State shrinkage pool（21）Bottom is to the shrinkage pool（21）Opening（213）It is gradually reduced on direction.
5. a kind of engine oil discharge screw according to claim 3, it is characterised in that：The inner wall（212）On be provided with
One circle protrusion（221）, the magnet（3）Positioned at the protrusion（221）Place plane and the bottom surface（211）Between.
6. a kind of engine oil discharge screw according to claim 3, it is characterised in that：The shrinkage pool（21）Close on opening
（213）Cross-sectional area be gradually reduced on direction from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810747528.3A CN108644208A (en) | 2018-07-09 | 2018-07-09 | A kind of engine oil discharge screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810747528.3A CN108644208A (en) | 2018-07-09 | 2018-07-09 | A kind of engine oil discharge screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108644208A true CN108644208A (en) | 2018-10-12 |
Family
ID=63751371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810747528.3A Pending CN108644208A (en) | 2018-07-09 | 2018-07-09 | A kind of engine oil discharge screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108644208A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1965835U (en) * | 1967-01-30 | 1967-08-10 | Alfred Gruegelsberg | MAGNETIC PLUG. |
| SE9000521D0 (en) * | 1990-02-13 | 1990-02-13 | Sura Magnets Ab | Oil plug |
| CN102909127A (en) * | 2012-10-19 | 2013-02-06 | 西安中科麦特电子技术设备有限公司 | Clean oil drainage bolt for lubricant oil |
| KR20130050072A (en) * | 2011-11-07 | 2013-05-15 | 현대위아 주식회사 | Drain plug |
| CN106274454A (en) * | 2016-09-29 | 2017-01-04 | 浙江吉利新能源商用车有限公司 | A kind of fuel tank |
| CN206111265U (en) * | 2016-10-26 | 2017-04-19 | 江西腾勒动力有限公司 | Oil drain plug screw on car oil pan |
| CN206642882U (en) * | 2017-03-31 | 2017-11-17 | 江苏建筑职业技术学院 | Filter for tank drainback |
| CN207145033U (en) * | 2017-08-08 | 2018-03-27 | 北京汽车股份有限公司 | Oil discharge screw and engine for oil pan of vehicle |
| CN208503209U (en) * | 2018-07-09 | 2019-02-15 | 苏州永基精密五金制品有限公司 | A kind of engine oil discharge screw |
-
2018
- 2018-07-09 CN CN201810747528.3A patent/CN108644208A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1965835U (en) * | 1967-01-30 | 1967-08-10 | Alfred Gruegelsberg | MAGNETIC PLUG. |
| SE9000521D0 (en) * | 1990-02-13 | 1990-02-13 | Sura Magnets Ab | Oil plug |
| KR20130050072A (en) * | 2011-11-07 | 2013-05-15 | 현대위아 주식회사 | Drain plug |
| CN102909127A (en) * | 2012-10-19 | 2013-02-06 | 西安中科麦特电子技术设备有限公司 | Clean oil drainage bolt for lubricant oil |
| CN106274454A (en) * | 2016-09-29 | 2017-01-04 | 浙江吉利新能源商用车有限公司 | A kind of fuel tank |
| CN206111265U (en) * | 2016-10-26 | 2017-04-19 | 江西腾勒动力有限公司 | Oil drain plug screw on car oil pan |
| CN206642882U (en) * | 2017-03-31 | 2017-11-17 | 江苏建筑职业技术学院 | Filter for tank drainback |
| CN207145033U (en) * | 2017-08-08 | 2018-03-27 | 北京汽车股份有限公司 | Oil discharge screw and engine for oil pan of vehicle |
| CN208503209U (en) * | 2018-07-09 | 2019-02-15 | 苏州永基精密五金制品有限公司 | A kind of engine oil discharge screw |
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