CN201615222U - Thermoplastic polyurethane combined dustproof - Google Patents
Thermoplastic polyurethane combined dustproof Download PDFInfo
- Publication number
- CN201615222U CN201615222U CN2009202620094U CN200920262009U CN201615222U CN 201615222 U CN201615222 U CN 201615222U CN 2009202620094 U CN2009202620094 U CN 2009202620094U CN 200920262009 U CN200920262009 U CN 200920262009U CN 201615222 U CN201615222 U CN 201615222U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- stainless steel
- steel casing
- thermoplastic polyurethane
- root
- 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 relates a hydraulic seal ring, and particularly relates to a thermoplastic polyurethane combined dustproof seal ring with a stainless steel casing. An inner lip part, an outer lip part and a root part are arranged on the seal ring, a groove with an edgefold is formed at the root part of the thermoplastic urethanes combined dustproof seal ring, the stainless steel casing is arranged right next to the outer side of the outer lip part, and the edgefold of the stainless steel casing is embedded into the groove at the root part; and the cylinder body is in interference fit with the stainless steel casing at the root part. Compared with the prior art, the utility model has the function of completely preventing external pollutants from entering into the oil cylinder from the mounting position.
Description
Technical field:
The utility model relates to a kind of hydraulic seal circle, particularly a kind of thermoplastic polyurethane combination dust-proof seal ring that has stainless steel casing.
Background technique:
Usually, if be stained with silt and water, and very under the situation of strong bond, common dust-proof seal ring is difficult to remove on the piston rod.Like this, silt and water bonding on the piston rod surface just are easy to be brought in the oil cylinder, have had a strong impact on the working life of oil cylinder and seal ring.
Summary of the invention:
The purpose of this utility model is a kind of thermoplastic polyurethane combination dust-proof seal ring that has stainless steel casing of inventing with deficiency for the defective that overcomes existing hydraulic seal coil structures.
The utility model is realized by following technological means:
A kind of thermoplastic polyurethane combination dust-proof seal ring of the present utility model, seal ring is provided with inner lip, external lip and root, described thermoplastic polyurethane combination dust-proof seal ring, its root is provided with the groove of band flanging, be close to the external lip outside and be provided with stainless steel casing, the flanging of stainless steel casing inlays in the groove of root; The stainless steel casing of described root and cylinder body be assembled into interference fit.
The utility model compared with prior art has the function that stops the external contamination thing to enter oil cylinder inside from the mounting point fully.
Description of drawings:
Fig. 1 is the schematic cross-section that has the thermoplastic polyurethane combination dust-proof seal ring of stainless steel casing of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further set forth:
According to Fig. 1, a kind of thermoplastic polyurethane combination dust-proof seal ring of the present utility model, material hardness are generally Shao Shi (A) 92 degree～95 degree.Seal ring is provided with inner lip 1, external lip 2 and root 3, and its root 3 is provided with the groove of band flanging, is close to external lip 2 outsides and is provided with stainless steel casing 4, and the flanging of stainless steel casing 4 inlays in the groove of root 3; The interference fit that is assembled into of stainless steel casing 4 and cylinder body.
If do not add stainless steel casing 4, if be stained with silt and water, and be that common dust-proof seal ring is difficult to remove under the situation of strong bond very on the oil cylinder piston bar.Like this, silt and water bonding on the piston rod surface just are easy to be brought in the oil cylinder, have had a strong impact on the working life of oil cylinder and seal ring.
Adopted structural design of the present utility model, can overcome effectively under the above-mentioned working condition, existing dust-proof seal ring is existing is difficult to remove the silt that firmly is bonded on the oil cylinder piston bar and the defective and the deficiency of water, made it to have:
1, stainless steel casing can not can corrosion; Be designed to this structure and correspondingly increased the interior supporting effect of dust ring inside;
2, the trench design of stainless steel casing and cylinder body is an interference fit, can stop the external contamination thing to enter oil cylinder inside from the mounting point fully;
3, the thermoplastic polyurethane material of Cai Yonging has high wear resistance, less permanent deformation, high anti-mechanical shock performance; Under the support of this stainless steel casing, the corresponding increase of the intensity of the dustproof lip of the contact segment of dust ring and piston rod;
4, operating temperature can reach-35 ℃～110 ℃;
5, the movement velocity of piston rod can reach 1m/s;
Although it is pointed out that here the utility model is described in detail, with regard to related domain staff, the similar modification of the class Sihe of making on this basis all should belong to the utility model protection domain.
Claims (2)
1. a thermoplastic polyurethane makes up dust-proof seal ring, seal ring is provided with inner lip, external lip and root, it is characterized in that: described thermoplastic polyurethane combination dust-proof seal ring, its root is provided with the groove of band flanging, be close to the external lip outside and be provided with stainless steel casing, the flanging of stainless steel casing inlays in the groove of root.
2. a kind of thermoplastic polyurethane combination dust-proof seal ring according to claim 1 is characterized in that: the stainless steel casing of described root and cylinder body groove be assembled into interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202620094U CN201615222U (en) | 2009-12-29 | 2009-12-29 | Thermoplastic polyurethane combined dustproof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202620094U CN201615222U (en) | 2009-12-29 | 2009-12-29 | Thermoplastic polyurethane combined dustproof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615222U true CN201615222U (en) | 2010-10-27 |
Family
ID=43001591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202620094U Expired - Fee Related CN201615222U (en) | 2009-12-29 | 2009-12-29 | Thermoplastic polyurethane combined dustproof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201615222U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954224A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Dustproof seal ring |
| CN108718788A (en) * | 2018-05-22 | 2018-11-02 | 福建省永春天露农林专业合作社 | A kind of gardens Potted-plant container |
-
2009
- 2009-12-29 CN CN2009202620094U patent/CN201615222U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954224A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Dustproof seal ring |
| CN108718788A (en) * | 2018-05-22 | 2018-11-02 | 福建省永春天露农林专业合作社 | A kind of gardens Potted-plant container |
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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: 20101027 Termination date: 20121229 |