CN201487210U - Box-type sealing ring - Google Patents
Box-type sealing ring Download PDFInfo
- Publication number
- CN201487210U CN201487210U CN2009200297826U CN200920029782U CN201487210U CN 201487210 U CN201487210 U CN 201487210U CN 2009200297826 U CN2009200297826 U CN 2009200297826U CN 200920029782 U CN200920029782 U CN 200920029782U CN 201487210 U CN201487210 U CN 201487210U
- Authority
- CN
- China
- Prior art keywords
- oil seal
- support ring
- outer oil
- seal
- box
- 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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Abstract
The utility model belongs to a sealing element and in particular relates to a box-type sealing ring, which overcomes the defects of bad dust-proof effect and easy failure in the conventional box-type sealing ring. The box-type sealing ring comprises an external oil seal and support rings; the external oil seal comprises an external oil seal framework and a seal lip, the upper side, the lower side, the inner side and the outer side of the external oil seal are all provided with the support rings, and the seal lip is in clearance fit with the support rings; the external oil seal framework extends out of the support rings and is bent at the outer side of the support ring; and meanwhile the external oil seal which extends out of the support ring is also provided with at least two dust-proof lips facing the inner surface of the support rings, and the dust-proof lips are in clearance fit with the adjacent support rings. The box-type sealing ring improves the sealing effect of oil seal, realizes normal use in various severely-polluted environments, and has a guaranteed long service life.
Description
Technical field
The utility model belongs to a kind of Sealing, relates in particular to a kind of cartridge seal circle.
Background technique
At present, cartridge seal circle commonly used as shown in Figure 1, the support ring 2,3 that it comprises outer oil seal 1 and is arranged at outer oil seal 1 outside, the oil sealing of this structure can guarantee the use under the conventional environment.But owing to can slide up and down relatively between outer oil seal 1 and the support ring, when producing slide relative, can produce the gap between outer oil seal and the support ring, this moment, introduced contaminants was easy to enter in the outer oil seal along this gap, the dustproof weak effect that causes oil sealing, the impurity that enters simultaneously in the outer oil seal can cause the wearing and tearing of sealing lip lip, causes seal failure, has reduced the working life of oil sealing.Polluting than under the serious environmental, the problems referred to above are especially serious.
Summary of the invention
The purpose of this utility model is to overcome the dustproof weak effect of existing cartridge seal circle, and the defective that lost efficacy by improving the structure of cartridge seal circle, has promoted the sealing effect of oil sealing easily, make it can satisfy normal use under the various heavily contaminated environment, and guaranteed enough working life.
The utility model is to adopt following technological scheme to realize: a kind of cartridge seal circle, comprise outer oil seal and support ring, outer oil seal comprises outer oil seal skeleton and sealing lip, the upper and lower side and the medial and lateral of outer oil seal are equipped with support ring, be interference fit between sealing lip and the support ring, wherein, described outer oil seal skeleton stretches out support ring, and the outside of bending and support ring, stretch out the outer oil seal of support ring simultaneously and be provided with at least two dust excluder lips, be interference fit between dust excluder lips and the adjacent support ring towards the internal surface of support ring.
In the utility model, described outer oil seal skeleton upper surface is ring, and along its circumferencial direction through hole is set at interval.The effect of this through hole is when making oil sealing, and rubber can flow into and form dust excluder lips along through hole.
Described support ring outer surface carries out zinc-plated antirust processing, and this antirust processing mode has improved the antirust ability and the appearance quality of support ring.
In the utility model, even when generation between outer oil seal skeleton and the support ring slides up and down, by the cooperation between dust excluder lips of adding on the outer oil seal and the support ring metal covering that is adjacent, also can stop introduced contaminants to enter in the outer oil seal effectively, improved dustproof effect, prevent the destruction of introduced contaminants, realized end face seal and axially double seal sealing lip.
The beneficial effects of the utility model are: the cartridge seal circle of this structure has dustproof preferably effect, the wearing and tearing that stoped introduced contaminants that sealing lip is produced, promoted its stability in use, and prolonged working life, especially can satisfy normal use under various heavily contaminated environment and enough working life.
Description of drawings
Fig. 1 partly cuts open structural representation for cartridge seal circle in the prior art;
Fig. 2 partly cuts open structural representation for cartridge seal circle in the utility model.
Embodiment
As shown in Figure 2, this cartridge seal circle comprises outer oil seal 1 and support ring 3,6, and the upper and lower side and the medial and lateral of outer oil seal 1 are equipped with support ring, thereby has realized end face seal and axially double seal.Outer oil seal 1 comprises outer oil seal skeleton 2 and sealing lip 5, is interference fit between the support ring 6 that sealing lip 5 is adjacent.Outer oil seal skeleton 2 stretches out support ring 6, and bend the outside in support ring, as shown in the figure, the shape of outer oil seal skeleton 2 is down " U " shape substantially, support ring 6 stretches in the opening of outer oil seal skeleton 2, stretch out support ring and bend and be provided with two dust excluder lips 7, be interference fit between its lip and the adjacent support ring metal covering in the outer oil seal internal surface in support ring 6 outsides.Can stop introduced contaminants to enter in the outer oil seal 1 effectively by dust excluder lips 7, play the effect of protection sealing lip 5.The upper surface of described outer oil seal skeleton 2 is interval with through hole 4, and when making oil sealing, rubber can be gone between outer oil seal skeleton 2 and the support ring 6 by this orifice flow, forms dust excluder lips 7.
In the utility model, the number of the dust excluder lips 7 that is provided with on the outer oil seal 1 can be two, also can be more.This cartridge seal circle is mainly used in the sealing of vehicle bridge wheel hub.
Claims (3)
1. cartridge seal circle, comprise outer oil seal and support ring, wherein outer oil seal comprises outer oil seal skeleton and sealing lip, the upper and lower side and the medial and lateral of outer oil seal are equipped with support ring, be interference fit between sealing lip and the support ring, it is characterized in that: described outer oil seal skeleton stretches out support ring, and bends the outside in support ring, stretch out the outer oil seal of support ring simultaneously and be provided with at least two dust excluder lips, be interference fit between dust excluder lips and the adjacent support ring towards the internal surface of support ring.
2. cartridge seal circle according to claim 1 is characterized in that: described outer oil seal skeleton upper surface is ring, and along its circumferencial direction through hole is set at interval.
3. cartridge seal circle according to claim 1 is characterized in that: described support ring outer surface carries out zinc-plated processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200297826U CN201487210U (en) | 2009-07-16 | 2009-07-16 | Box-type sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200297826U CN201487210U (en) | 2009-07-16 | 2009-07-16 | Box-type sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487210U true CN201487210U (en) | 2010-05-26 |
Family
ID=42426089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200297826U Expired - Fee Related CN201487210U (en) | 2009-07-16 | 2009-07-16 | Box-type sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487210U (en) |
-
2009
- 2009-07-16 CN CN2009200297826U patent/CN201487210U/en not_active Expired - Fee Related
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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: 20100526 Termination date: 20120716 |