CN2755332Y - Structure for increasing hydraulic cylinder life - Google Patents
Structure for increasing hydraulic cylinder life Download PDFInfo
- Publication number
- CN2755332Y CN2755332Y CN 200420109988 CN200420109988U CN2755332Y CN 2755332 Y CN2755332 Y CN 2755332Y CN 200420109988 CN200420109988 CN 200420109988 CN 200420109988 U CN200420109988 U CN 200420109988U CN 2755332 Y CN2755332 Y CN 2755332Y
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- seal ring
- new structure
- conduction band
- type seal
- 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
Links
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- Sealing Devices (AREA)
Abstract
The utility model relates to a pressure unit class, particularly to a new structure for increasing service life of a hydraulic cylinder. The new structure comprises a hydraulic cylinder body, a plunger and a conducting band, and a Y-shaped sealing ring is arranged at the front end of the conducting band on the side wall of the plunger along the pressure oil inlet direction. The new structure is characterized in that at least one Y-shaped sealing ring is arranged at the rear end of the conducting band on the side wall of the plunger. The utility model has the advantages of simple structure, favorable reliability and convenient use, and the additional Y-shaped sealing ring improves the service life of the hydraulic cylinder by several times.
Description
Technical field
The utility model relates to the pressure unit class, particularly a kind of new structure that increases the oil hydraulic cylinder life-span.
Background technique
In the prior art, be used for the hydraulic jack of hoist, y-type seal ring only is set one usually, when it damages replacing, need the dismounting oil cylinder, dismounting is loaded down with trivial details, the easily surface scratch easily of damage other component, particularly piston rod, the working life after it is changed is lower.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, a kind of new structure that increases the oil hydraulic cylinder life-span is provided, this new structure is that the twice y-type seal ring is set on the piston of oil hydraulic cylinder at least, when oil hydraulic cylinder initially normally uses, the first road seal ring works, and the second road seal ring and seal ring afterwards thereof are in state of dormancy.
The utility model purpose realizes being finished by following technological scheme:
A kind of new structure that increases the oil hydraulic cylinder life-span, comprise hydraulic cylinder, piston, conduction band, conduction band front end on piston side wall, just the pressure oil importer is characterized in that to y-type seal ring is installed at least one y-type seal ring is installed in the conduction band rear end on piston side wall.
At least one above-mentioned y-type seal ring refers to can be together, twice or three seals circle.
The utility model has the advantages that, simple in structure, good reliability, easy to use, increase by one y-type seal ring and the oil hydraulic cylinder life-span can be prolonged several times.
Summary of drawings
Accompanying drawing 1 is the utility model structural representation;
Concrete technological scheme
The utility model feature and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
As shown in Figure 1, label 1-6 represents respectively: hydraulic cylinder (1), piston (2), seal ring (3), conduction band (4), y-type seal ring (5), pressure oil import (6).
Present embodiment comprises hydraulic cylinder 1, piston 2, conduction band 4, conduction band 4 front ends on piston 2 sidewalls, and 6 directions of pressure oil import just are equipped with y-type seal ring 3, and conduction band 4 rear ends on piston 2 sidewalls are installed y-type seal ring 5 one.
Present embodiment is when initially normally using, the first road seal ring 3 works, shrink on the Y lip limit of the second road seal ring 5, be in state of dormancy, after 3 wearing and tearing of the first road seal ring, damaging, pressure oil penetrates into the second road seal ring 5, and expand in this Y type lip limit, pressurized, play seal action just now, but so life-span of the prolongation oil hydraulic cylinder of several times.
Claims (3)
1, a kind of new structure that increases the oil hydraulic cylinder life-span, comprise hydraulic cylinder, piston, conduction band, conduction band front end on piston side wall, just the pressure oil importer is characterized in that to y-type seal ring is installed at least one y-type seal ring is installed in the conduction band rear end on piston side wall.
2, a kind of new structure that increases the oil hydraulic cylinder life-span according to claim 1, it is characterized in that described conduction band rear end install at least one y-type seal ring refer to can install together, twice or three road y-type seal rings.
3, a kind of new structure that increases the oil hydraulic cylinder life-span according to claim 2 is characterized in that described conduction band rear installs y-type seal ring one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109988 CN2755332Y (en) | 2004-12-09 | 2004-12-09 | Structure for increasing hydraulic cylinder life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109988 CN2755332Y (en) | 2004-12-09 | 2004-12-09 | Structure for increasing hydraulic cylinder life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2755332Y true CN2755332Y (en) | 2006-02-01 |
Family
ID=35928960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109988 Expired - Fee Related CN2755332Y (en) | 2004-12-09 | 2004-12-09 | Structure for increasing hydraulic cylinder life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2755332Y (en) |
-
2004
- 2004-12-09 CN CN 200420109988 patent/CN2755332Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |