CN202118258U - An oil seal with an oil return thread - Google Patents

An oil seal with an oil return thread Download PDF

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Publication number
CN202118258U
CN202118258U CN2011201101641U CN201120110164U CN202118258U CN 202118258 U CN202118258 U CN 202118258U CN 2011201101641 U CN2011201101641 U CN 2011201101641U CN 201120110164 U CN201120110164 U CN 201120110164U CN 202118258 U CN202118258 U CN 202118258U
Authority
CN
China
Prior art keywords
oil
oil sealing
drive back
lip
back thread
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.)
Expired - Fee Related
Application number
CN2011201101641U
Other languages
Chinese (zh)
Inventor
周文韬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FOSHAN SHUNDE YIDA AUTOMOTIVE SEALING ARTICLE Co Ltd
Original Assignee
FOSHAN SHUNDE YIDA AUTOMOTIVE SEALING ARTICLE Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FOSHAN SHUNDE YIDA AUTOMOTIVE SEALING ARTICLE Co Ltd filed Critical FOSHAN SHUNDE YIDA AUTOMOTIVE SEALING ARTICLE Co Ltd
Priority to CN2011201101641U priority Critical patent/CN202118258U/en
Application granted granted Critical
Publication of CN202118258U publication Critical patent/CN202118258U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Sealing With Elastic Sealing Lips (AREA)

Abstract

The utility model discloses an oil seal with an oil return thread. The oil seal comprises an oil seal body and is characterized in that an inner side of a lip of the oil seal body is circumferentially provided with the oil return thread comprising a plurality of diamond-shaped projections, which are disposed on an inner wall of the lip of the oil seal body in a slant manner. The oil seal guarantees reliable static seal with no leakage and good effect of dynamic seal with strong oil returning capability.

Description

A kind of oil sealing with oil drive back thread
Technical field
The utility model relates to the seal arrangement technical field, relates to a kind of oil seal structure in particular.
Background technique
At present, oil sealing is widely used in the motor of automobile, and it is installed in the end face of rotating shaft, prevents that lubricant oil with pressure from leaking.Like one Chinese patent application number is CN200610046541.3, and the model utility name is called a kind of rotary oil seal with oil-sealing mouth, and a main oil sealing surface and envelope dirt lip are arranged on the interior ring, and it is characterized in that: the opposite side at main oil sealing surface also has an oil-sealing mouth.This patent structure has alleviated the pressure of main oil sealing surface pressurized, has prolonged the working life of main oil sealing surface, but sealability is not good, leaks easily.
The model utility content
The purpose of the utility model is exactly provide for the deficiency that solves existing technology a kind of not only simple in structure, easy for installation, and long service life, the oil sealing of the band oil drive back thread of good seal performance.
The utility model is to adopt following technical solution to realize above-mentioned purpose: a kind of oil sealing with oil drive back thread, comprise the oil sealing main body, and it is characterized in that the lip inner circumferential of said oil sealing main body is provided with the oil drive back thread that comprises several projections.
As further specifying of such scheme, said projection assumes diamond in shape, and is obliquely installed the lip inwall in the oil sealing main body.
The said lip cross section that has the oil sealing main body of oil drive back thread is trapezoidal.
The lip arranged outside of said oil seal body has annular groove, and assembly has spring ring in the annular groove.
The lip bottom of said oil seal body is provided with the flange that extends internally.
Said flange slope setting, ledge surface is provided with some convex tendons.
The beneficial effect that the utility model adopts above-mentioned technical solution to reach is:
The utility model oil seal lip position is provided with the rhombus oil drive back thread, relies on oil drive back thread to return the oil that functional oil will leak and inhales back, and this rhombus return wire features of shape can guarantee that the oil sealing static sealing is reliable, does not leak; Pump is inhaled the effect extra-heavy, and dynamic seal (packing) is respond well, and it is strong to return oily ability.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the utility model.
Description of reference numerals: 1, oil sealing main body 2, oil drive back thread 3, lip 4, annular groove 5, convex tendon
Embodiment
As shown in Figure 1, a kind of oil sealing with oil drive back thread of the utility model comprises oil sealing main body 1, and the lip inner circumferential of oil sealing main body 1 is provided with the oil drive back thread 2 that comprises several projections, and projection assumes diamond in shape, and is obliquely installed the lip inwall in the oil sealing main body.Wherein, lip 3 cross sections that have an oil sealing main body 1 of oil drive back thread 2 are trapezoidal.Lip 3 arranged outside of oil seal body have annular groove 4, and assembly has spring ring in the annular groove 4.The lip bottom of oil seal body is provided with the flange that extends internally, the flange slope setting, and ledge surface is provided with some convex tendons 5.
In the using process, rely on oil drive back thread to return the oil that functional oil will leak and inhale back, this rhombus return wire features of shape can guarantee that the oil sealing static sealing is reliable, does not leak; Pump is inhaled the effect extra-heavy, and dynamic seal (packing) is respond well, and it is strong to return oily ability.
Above-described only is the preferred implementation of the utility model; Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design; Can also make some distortion and improvement, these all belong to the protection domain of the utility model.

Claims (6)

1. the oil sealing with oil drive back thread comprises the oil sealing main body, it is characterized in that, the lip inner circumferential of said oil sealing main body is provided with the oil drive back thread that comprises several projections.
2. the oil sealing of band oil drive back thread according to claim 1 is characterized in that, said projection assumes diamond in shape, and is obliquely installed the lip inwall in the oil sealing main body.
3. the oil sealing of band oil drive back thread according to claim 1 and 2 is characterized in that, the said lip cross section that has the oil sealing main body of oil drive back thread is trapezoidal.
4. the oil sealing of band oil drive back thread according to claim 1 is characterized in that, the lip arranged outside of said oil seal body has annular groove, and assembly has spring ring in the annular groove.
5. the oil sealing of band oil drive back thread according to claim 1 is characterized in that, the lip bottom of said oil seal body is provided with the flange that extends internally.
6. the oil sealing of band oil drive back thread according to claim 5 is characterized in that, said flange slope setting, and ledge surface is provided with some convex tendons.
CN2011201101641U 2011-04-13 2011-04-13 An oil seal with an oil return thread Expired - Fee Related CN202118258U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201101641U CN202118258U (en) 2011-04-13 2011-04-13 An oil seal with an oil return thread

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201101641U CN202118258U (en) 2011-04-13 2011-04-13 An oil seal with an oil return thread

Publications (1)

Publication Number Publication Date
CN202118258U true CN202118258U (en) 2012-01-18

Family

ID=45459325

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201101641U Expired - Fee Related CN202118258U (en) 2011-04-13 2011-04-13 An oil seal with an oil return thread

Country Status (1)

Country Link
CN (1) CN202118258U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104358599A (en) * 2014-11-18 2015-02-18 烟台润蚨祥油封有限公司 Low-friction air valve oil seal
CN104989826A (en) * 2015-07-22 2015-10-21 青岛开世密封工业有限公司 Water seal
CN107701703A (en) * 2017-10-16 2018-02-16 东风汽车有限公司 Oil seal of rear output end of transfer case of military off-road vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104358599A (en) * 2014-11-18 2015-02-18 烟台润蚨祥油封有限公司 Low-friction air valve oil seal
CN104989826A (en) * 2015-07-22 2015-10-21 青岛开世密封工业有限公司 Water seal
CN107701703A (en) * 2017-10-16 2018-02-16 东风汽车有限公司 Oil seal of rear output end of transfer case of military off-road vehicle
CN107701703B (en) * 2017-10-16 2023-10-27 东风汽车有限公司 Oil seal at rear output end of transfer case of military off-road vehicle

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120118

Termination date: 20120413