CN201992058U - External jack rod piston supporting and sealing structure - Google Patents
External jack rod piston supporting and sealing structure Download PDFInfo
- Publication number
- CN201992058U CN201992058U CN2011201213666U CN201120121366U CN201992058U CN 201992058 U CN201992058 U CN 201992058U CN 2011201213666 U CN2011201213666 U CN 2011201213666U CN 201120121366 U CN201120121366 U CN 201120121366U CN 201992058 U CN201992058 U CN 201992058U
- Authority
- CN
- China
- Prior art keywords
- ring
- piston
- sealing
- supporting
- external jack
- 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
Images
Abstract
The utility model discloses an external jack rod piston supporting and sealing structure comprising a steel piston substrate. A copper ring is arranged in the middle of the piston substrate, a loose rib is arranged below the copper ring, an angular check ring and a rubber ring are arranged below the loose rib, thus forming a set of sealing combination strong in support, good in tightness and nice in durability. In the design, friction between an oil cylinder and the piston supporting and sealing combination is smaller, articulation, cylinder score and other phenomena are prevented, the clearance is reasonable, the service life of a sealing piece can be prolonged for several times and furthermore, the service life of the jack is prolonged and the use cost of users is reduced.
Description
Technical field
The utility model relates to technical field of jacks, particularly relates to a kind of external jack ram piston supporting and sealing configuration.
Background technique
In the jack using process, because of push rod is bearing huge pressure loading, produce huge frictional force between ram piston and the oil cylinder, supporting is improper with Seal Design, very easily causes scuffing of cylinder bore, Sealing to damage, thereby causes jack to lose efficacy.What original jack piston supported usefulness is cast iron, in sealed groove, load onto dihedral back-up ring and rubber ring, when designing like this, gap between piston and the oil cylinder just can not be too little, if the gap is too little, be easy to cause pull-cylinder phenomena, excesssive gap is easy to cause dihedral back-up ring and rubber ring again under the effect of high pressure oil, extrusion-deformation and breakage cause the seal failure jack to scrap.
The model utility content
For solving the problems of the technologies described above, the purpose of this utility model provides and a kind ofly can make prolong several times the working life of Sealing, thereby improves the working life of jack, reduces the supporting of external jack ram piston and the sealing configuration of user's user cost.
External jack ram piston supporting of the present utility model and sealing configuration comprise the steel piston matrix, place a copper ring in the middle of the piston matrix, and loose rib of placement below copper ring is at the underneath dihedral back-up ring and the rubber ring of loose rib.
External jack ram piston supporting of the present utility model and sealing configuration, rubber ring is a UN polyamine fat seal ring.
Compared with prior art; piston matrix of the present utility model is made with steel; the matrix cylindrical is smaller, places a copper ring in the middle of piston, play supporting role; the friction factor of copper and iron and steel is less; wear resistance is better, and seizure resistance is good, so the gap of copper ring and oil cylinder can suitably be put a little bit smaller; thereby can better bring into play supporting force, and seal ring is shielded.Loose rib of placement below copper ring when pressure-bearing, can well keep the less gap with oil cylinder, prevents seal ring extrusion-deformation breakage.At the underneath dihedral back-up ring and the UN polyamine fat seal ring (perhaps rubber ring) of loose rib, so just formed that a cover supporting is strong, good airproof performance, seal combination that serviceability is good.Like this between design oil cylinder and the piston support seal combination friction littler, prevent phenomenons such as interlock, scuffing of cylinder bore, reasonably the gap can make prolong several times the working life of Sealing, thereby improve the working life of jack reduction user's user cost.
Description of drawings
Fig. 1 is the sectional view of supporting of the utility model external jack ram piston and sealing configuration;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
As depicted in figs. 1 and 2, a kind of external jack ram piston supporting and sealing configuration, comprise steel piston matrix 1, in the middle of piston matrix 1, place a copper ring 2, loose rib 3 of placement below copper ring 2, at the underneath dihedral back-up ring 4 and the rubber ring 5 of loose rib 3, rubber ring 5 is a UN polyamine fat seal ring.
Piston matrix 1 usefulness steel of the present utility model are made; the matrix cylindrical is smaller; in the middle of piston matrix 1, place a copper ring 2; play supporting role; the friction factor of copper and iron and steel is less; wear resistance is better; seizure resistance is good; therefore the gap of copper ring and oil cylinder can suitably put a little bit smaller, thereby can better bring into play supporting force, and seal ring is shielded; loose rib 3 of placement below copper ring 2; when pressure-bearing, can well keep the less gap with oil cylinder, prevent seal ring extrusion-deformation breakage.At the underneath dihedral back-up ring 4 and the UN polyamine fat seal ring 5 (perhaps rubber ring) of loose rib 3, so just formed that a cover supporting is strong, good airproof performance, seal combination that serviceability is good.Like this between design oil cylinder and the piston support seal combination friction littler, prevent phenomenons such as interlock, scuffing of cylinder bore, reasonably the gap can make prolong several times the working life of Sealing, thereby improve the working life of jack reduction user's user cost.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (2)
1. an external jack ram piston supports and sealing configuration, comprises the steel piston matrix, it is characterized in that: place a copper ring in the middle of the piston matrix, loose rib of placement below copper ring is at the underneath dihedral back-up ring and the rubber ring of loose rib.
2. external jack ram piston supporting according to claim 1 and sealing configuration, it is characterized in that: described rubber ring is a UN polyamine fat seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201213666U CN201992058U (en) | 2011-04-22 | 2011-04-22 | External jack rod piston supporting and sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201213666U CN201992058U (en) | 2011-04-22 | 2011-04-22 | External jack rod piston supporting and sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992058U true CN201992058U (en) | 2011-09-28 |
Family
ID=44668548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201213666U Expired - Fee Related CN201992058U (en) | 2011-04-22 | 2011-04-22 | External jack rod piston supporting and sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201992058U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765674A (en) * | 2012-07-04 | 2012-11-07 | 常熟通润汽车零部件股份有限公司 | Piston rod and cylinder body matched structure for hydraulic jack |
| CN103792396A (en) * | 2013-12-03 | 2014-05-14 | 镇江腾龙智能科技有限公司 | Streaming potential online measuring instrument probe lower piston improvement |
| CN106064797A (en) * | 2016-04-14 | 2016-11-02 | 衡阳市锦泰工具有限公司 | The sealing structure of hydraulic jack piston |
-
2011
- 2011-04-22 CN CN2011201213666U patent/CN201992058U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765674A (en) * | 2012-07-04 | 2012-11-07 | 常熟通润汽车零部件股份有限公司 | Piston rod and cylinder body matched structure for hydraulic jack |
| CN103792396A (en) * | 2013-12-03 | 2014-05-14 | 镇江腾龙智能科技有限公司 | Streaming potential online measuring instrument probe lower piston improvement |
| CN106064797A (en) * | 2016-04-14 | 2016-11-02 | 衡阳市锦泰工具有限公司 | The sealing structure of hydraulic jack piston |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201992058U (en) | External jack rod piston supporting and sealing structure | |
| CN201416636Y (en) | Combined seal ring of piston | |
| CN203098548U (en) | Shaft | |
| CN202468529U (en) | Novel piston structure of plunger type cylinder | |
| CN201836152U (en) | Guide sleeve of hydraulic oil cylinder | |
| CN204041437U (en) | A kind of hydraulic planger pump housing assembly | |
| CN201218252Y (en) | Improved hydraulic cylinder piston rod | |
| CN103696945B (en) | Crosshead of natural gas compressor | |
| CN103851200A (en) | Hydraulic sealing part | |
| CN203584731U (en) | Cobalt-base alloy natural gas compressor crosshead | |
| CN201843850U (en) | Hydraulic cylinder component | |
| CN202851965U (en) | Novel sealing ring | |
| CN202732544U (en) | Supporting device used for supporting oil cylinder | |
| CN206988213U (en) | A kind of oil cylinder interval nested structure | |
| CN201982660U (en) | Dual-seal hydraulic oil cylinder | |
| CN106801672A (en) | A kind of cylinder body handling axle sleeve of axial plunger pump | |
| CN202082192U (en) | Limit component for hydraulic executive device of heavy dump truck | |
| CN103696940B (en) | Cobalt base alloy crosshead of natural gas compressor | |
| CN202418090U (en) | Plunger-type oil cylinder | |
| CN202597083U (en) | Axial plunger pump with circulating oil passage | |
| CN203161516U (en) | Concrete piston sealing member | |
| CN205605326U (en) | Box -like cylinder block of cluster engine | |
| CN203098841U (en) | Piston | |
| CN202811635U (en) | Wood gripping oil cylinder for loading machine | |
| CN202451507U (en) | Guide sleeve for hydraulic cylinder |
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 |
Granted publication date: 20110928 Termination date: 20200422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |