CN202370935U - Guide sleeve having seal backpressure release and exhaust functions - Google Patents
Guide sleeve having seal backpressure release and exhaust functions Download PDFInfo
- Publication number
- CN202370935U CN202370935U CN2011205121930U CN201120512193U CN202370935U CN 202370935 U CN202370935 U CN 202370935U CN 2011205121930 U CN2011205121930 U CN 2011205121930U CN 201120512193 U CN201120512193 U CN 201120512193U CN 202370935 U CN202370935 U CN 202370935U
- Authority
- CN
- China
- Prior art keywords
- guide sleeve
- seal
- pressure
- exhaust
- seal ring
- 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 - Lifetime
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a structure of a guide sleeve having the seal backpressure release and exhaust functions, and belongs to the field of guide sleeves. The guide sleeve is mainly used for lifting hydraulic oil cylinders of long strokes. The guide sleeve comprises a guide sleeve, a Y-shaped seal ring and a step seal groove, wherein a pressure release oil port is arranged between the Y-shaped seal ring and the step seal groove, and an exhaust pressure measurement oil port is arranged towards a piston and in front of the step seal groove. The pressure release oil port is communicated with a system oil tank; a pressure measurement connector is installed on the exhaust pressure measurement oil port, and the pressure of the internal hydraulic oil in a rod cavity of a hydraulic cylinder can be measured at any time. The guide sleeve has the benefits that the structure is simple, the working stability of this type of the hydraulic oil cylinders is improved, and the seal service life is prolonged.
Description
Technical field
The utility model relates to a kind of guide sleeve, specifically is a kind of with the guide sleeve of sealing back pressure release with degassing function, is used for long stroke class hydraulic jack.
Technical background
At present, common guide sleeve, no relief opening and pressure release hydraulic fluid port, in-oil cylinder gas can't be discharged, thereby when causing hydraulic cylinder works, is prone to shake, make sound, creep, and influences the proper functioning of oil hydraulic cylinder, unstable properties, the hidden danger that security presence is certain.No pressure release hydraulic fluid port between " Y " seal ring and this special envelope, oil hydraulic cylinder is often worked, and very easily produces airtight high-pressure and hydraulic oil between " Y " seal ring and this special envelope, greatly reduces the working life of sealing.
Summary of the invention
It is a kind of with the guide sleeve of sealing back pressure release with degassing function that the utility model provides, and the oil hydraulic cylinder that is used for long stroke can improve the stability of hydraulic cylinder works, prolongs the working life of sealing.
The utility model is realized with following technological scheme: a kind of with the guide sleeve of sealing back pressure release with degassing function; Comprise guide sleeve, Y seal ring and Si Te envelope groove; Between Y seal ring and Si Te envelope groove, a pressure release hydraulic fluid port is arranged, an exhaust pressure measurement hydraulic fluid port is arranged in this special envelope groove piston direction previous dynasty.The pressure release hydraulic fluid port communicates with the system fuel tank,
Effectively exhaust of said structure prevents that the shake of oil hydraulic cylinder from creeping, and 0 pressure reduction between Y seal ring and Si Te envelope groove can effectively be protected sealing, and a pressure measuring tie-in is installed on exhaust pressure measurement hydraulic fluid port, can measure the pressure of the internal hydraulic pressure oil of oil hydraulic cylinder rod chamber at any time.
The beneficial effect of the utility model is: simple in structure, improved the working stability of such hydraulic jack, and prolonged the working life of sealing.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1, piston rod, 2, guide sleeve, 3, cylinder barrel, 4, this special envelope groove, 5, the Y seal ring, 6, the pressure release hydraulic fluid port, 7, exhaust pressure measurement hydraulic fluid port.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
As shown in Figure 1, band sealing back pressure discharges the guide sleeve with degassing function, comprises guide sleeve 2, is positioned at the Y seal ring 5 and the Si Te envelope groove 4 of 1 in guide sleeve 2 and piston rod; Between Y seal ring 5 and Si Te envelope groove 4, be processed with a pressure release hydraulic fluid port 6, this hydraulic fluid port is communicated with the system fuel tank; Be processed with an exhaust pressure measurement hydraulic fluid port 7 in this special envelope groove piston direction 4 previous dynasty.One pressure measuring tie-in is installed on exhaust pressure measurement hydraulic fluid port 7, can be measured the pressure of the internal hydraulic pressure oil of oil hydraulic cylinder rod chamber at any time.
Claims (1)
1. one kind discharges the guide sleeve with degassing function with the sealing back pressure; Comprise guide sleeve (2), Y seal ring (5) and this special envelope groove (4); It is characterized in that: between Y seal ring (5) and this special envelope groove (4), a pressure release hydraulic fluid port (6) is arranged, an exhaust pressure measurement hydraulic fluid port (7) is arranged in this special envelope groove (4) piston direction previous dynasty.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205121930U CN202370935U (en) | 2011-12-11 | 2011-12-11 | Guide sleeve having seal backpressure release and exhaust functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205121930U CN202370935U (en) | 2011-12-11 | 2011-12-11 | Guide sleeve having seal backpressure release and exhaust functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370935U true CN202370935U (en) | 2012-08-08 |
Family
ID=46594639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205121930U Expired - Lifetime CN202370935U (en) | 2011-12-11 | 2011-12-11 | Guide sleeve having seal backpressure release and exhaust functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481615A (en) * | 2016-12-01 | 2017-03-08 | 三集团有限公司 | A kind of sealing structure, oil cylinder and wind-driven generator |
| CN109452681A (en) * | 2018-12-12 | 2019-03-12 | 扬州科润德机械有限公司 | A kind of adjustable bulking machine of product bulk density |
-
2011
- 2011-12-11 CN CN2011205121930U patent/CN202370935U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481615A (en) * | 2016-12-01 | 2017-03-08 | 三集团有限公司 | A kind of sealing structure, oil cylinder and wind-driven generator |
| CN106481615B (en) * | 2016-12-01 | 2018-07-13 | 三一集团有限公司 | A kind of sealing structure, oil cylinder and wind-driven generator |
| CN109452681A (en) * | 2018-12-12 | 2019-03-12 | 扬州科润德机械有限公司 | A kind of adjustable bulking machine of product bulk density |
| CN109452681B (en) * | 2018-12-12 | 2023-07-07 | 扬州科润德机械有限公司 | Bulking machine with adjustable product volume weight |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2615020A3 (en) | Hydraulic brake mechanism | |
| CN103256275A (en) | Quick double-acting hydraulic cylinder | |
| CN202370935U (en) | Guide sleeve having seal backpressure release and exhaust functions | |
| CN202811571U (en) | Supercharged oil cylinder | |
| SE0600524L (en) | Accumulator | |
| CN201326603Y (en) | Telescopic cylinder | |
| CN201884360U (en) | Single-acting two-stage hydraulic cylinder | |
| CN102221028A (en) | Hydraulic cylinder | |
| CN202082195U (en) | Guide device of hydraulic cylinder | |
| CN105712237A (en) | Hydraulic jack | |
| CN103375456A (en) | Novel end cap | |
| CN205190427U (en) | Can assist increase formula hydraulic cylinder | |
| CN204008022U (en) | The twin cylinder closure mechanism of oil pump main body air tightness detecting clamp | |
| CN203656198U (en) | Y-shaped sealing ring | |
| CN203230653U (en) | Double-acting rapid hydraulic cylinder | |
| CN202300939U (en) | Cylinder structure of air booster pump | |
| CN202326848U (en) | Internal breathing type spring braking air chamber | |
| CN102032239A (en) | Anti-bending device for protective tube of long-stroke sensor for hydraulic cylinder | |
| CN201953739U (en) | Main hydraulic cylinder of press machine | |
| CN202300938U (en) | Air cylinder structure of air boosting pump | |
| CN204284066U (en) | Easy primer fluid compressing cylinder | |
| CN204804967U (en) | A piston for on engine | |
| CN202300997U (en) | Hydraulic piston of air boosting pump | |
| CN202579718U (en) | Air cylinder structure of clutch booster | |
| CN203548124U (en) | Double-oil-pump oil supply system for large diaphragm compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |