CN204573100U - Twist shape oil drive back thread oil sealing - Google Patents
Twist shape oil drive back thread oil sealing Download PDFInfo
- Publication number
- CN204573100U CN204573100U CN201520174324.7U CN201520174324U CN204573100U CN 204573100 U CN204573100 U CN 204573100U CN 201520174324 U CN201520174324 U CN 201520174324U CN 204573100 U CN204573100 U CN 204573100U
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- China
- Prior art keywords
- oil
- drive back
- back thread
- rubber elastomer
- sealing
- 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
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- Sealing Devices (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a kind of twist shape oil drive back thread oil sealing, it comprises oil tight skeleton, rubber elastomer, deflation spring, the lower end of described rubber elastomer is connected on the side of oil tight skeleton, described deflation spring is arranged in rubber elastomer, described rubber elastomer is attached with bidirectional crossed type oil drive back thread.This oil sealing has stronger pump-absorb action, can be good at preventing from revealing, and in addition, energy two-way oil return, improves sealability; Meanwhile, oily line cross section is D shape, semicircle or arc, can reduce rubbing surface, improves the wear-resisting property of product, extends product performance.
Description
Technical field
The utility model belongs to oil sealing, is specifically related to a kind of twist shape oil drive back thread oil sealing.
Background technique
At present, general two-way oil return line structure oil sealing structure is made up of oil tight skeleton, rubber elastomer and deflation spring, rubber elastomer is connected on oil tight skeleton, and tighten spring and be arranged in rubber elastomer, oil return thread structure is the structures such as splayed configuration, waveform or grid-shaped.
Notification number is CN2388421Y, and application number is 98236241.2, name is called that the patent of the dynamic rotation axis grease seal of two-way oil return line discloses so a kind of two-way oil return line structure oil sealing.This two-way oil return line structure oil sealing is due to the restriction of structure, and have a strong impact on running shaft and need the sealing effect at bidirectional rotation place and the working life of oil sealing, meanwhile, product realizability is poor, industrialized production ability.
The prior art patent No. is 98236241.2, a kind of dynamic rotary oil sealing with two-way oil return line is disclosed in the utility model patent specification of denomination of invention for " the dynamic rotary oil sealing of band two-way oil return line ", be made up of skeleton, rubber, spring, sealing lip and " eight " type oil drive back thread that mold pressing goes out that is circumferentially evenly arranged at sealing lip, triangular in shape or the quadrilateral of its oil drive back thread section, this oil sealing oil return thread structure complicated processing is produced inconvenient, and working life is short.
Summary of the invention
In order to overcome the problems referred to above that prior art field exists, the purpose of this utility model is, provides a kind of twist shape oil drive back thread oil sealing, solves traditional oil drive back thread oil sealing sealing weak effect, the problems such as working life is short.
The twist shape oil drive back thread oil sealing that the utility model provides, it comprises oil tight skeleton, rubber elastomer, deflation spring, the lower end of described rubber elastomer is connected on the side of oil tight skeleton, described deflation spring is arranged in rubber elastomer, described rubber elastomer is attached with bidirectional crossed type oil drive back thread.
Described bidirectional crossed type oil drive back thread is twist shape.
The cross section of described bidirectional crossed type oil drive back thread is D shape, semicircle or arc.
The twist shape oil drive back thread oil sealing that the utility model provides, its beneficial effect is, this oil sealing has stronger pump-absorb action, can be good at preventing from revealing, and in addition, energy two-way oil return, improves sealability; Meanwhile, oily line cross section is D shape, semicircle or arc, can reduce rubbing surface, improves the wear-resisting property of product, extends product performance.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the utility model embodiment.
Mark in figure:
1. tighten spring; 2. oil tight skeleton; 3. rubber elastomer; 4. bidirectional crossed type oil drive back thread.
Embodiment
With reference to the accompanying drawings, in conjunction with the embodiments, to the twist shape oil drive back thread oil sealing that the utility model provides, be described in detail.
Embodiment
With reference to Fig. 1, the twist shape oil drive back thread oil sealing of the present embodiment, comprise oil tight skeleton 2, rubber elastomer and deflation spring 1, described rubber elastomer 3 is connected on described oil tight skeleton 2, described deflation spring 1 is arranged in described rubber elastomer 3, and rubber elastomer 3 is attached with bidirectional crossed type oil drive back thread 4.
Rubber elastomer 3 is attached with bidirectional crossed type oil drive back thread 4 in twist shape, and twist shape oil return thread structure has stronger pump-absorb action, can be good at preventing from revealing, and in addition, energy two-way oil return, improves sealability; The cross section of the bidirectional crossed type oil drive back thread 4 that rubber elastomer 3 adheres to is D shape, semicircle or arc, can reduce rubbing surface, improves the wear-resisting property of product, extends life of product.
Claims (3)
1. a twist shape oil drive back thread oil sealing, it is characterized in that: it comprises oil tight skeleton, rubber elastomer, deflation spring, the lower end of described rubber elastomer is connected on the side of oil tight skeleton, described deflation spring is arranged in rubber elastomer, described rubber elastomer is attached with bidirectional crossed type oil drive back thread.
2. twist shape oil drive back thread oil sealing according to claim 1, is characterized in that: described bidirectional crossed type oil drive back thread is twist shape.
3. twist shape oil drive back thread oil sealing according to claim 1 and 2, is characterized in that: the cross section of described bidirectional crossed type oil drive back thread is D shape, semicircle or arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520174324.7U CN204573100U (en) | 2015-03-26 | 2015-03-26 | Twist shape oil drive back thread oil sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520174324.7U CN204573100U (en) | 2015-03-26 | 2015-03-26 | Twist shape oil drive back thread oil sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204573100U true CN204573100U (en) | 2015-08-19 |
Family
ID=53865741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520174324.7U Expired - Fee Related CN204573100U (en) | 2015-03-26 | 2015-03-26 | Twist shape oil drive back thread oil sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204573100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728449A (en) * | 2015-03-26 | 2015-06-24 | 山东东都新材料科技有限公司 | Chinese-doughnut-shaped oil-back line oil seal |
-
2015
- 2015-03-26 CN CN201520174324.7U patent/CN204573100U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728449A (en) * | 2015-03-26 | 2015-06-24 | 山东东都新材料科技有限公司 | Chinese-doughnut-shaped oil-back line oil seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 |