CN203906767U - Multi-stage supercharged high-pressure piston - Google Patents
Multi-stage supercharged high-pressure piston Download PDFInfo
- Publication number
- CN203906767U CN203906767U CN201420247450.6U CN201420247450U CN203906767U CN 203906767 U CN203906767 U CN 203906767U CN 201420247450 U CN201420247450 U CN 201420247450U CN 203906767 U CN203906767 U CN 203906767U
- Authority
- CN
- China
- Prior art keywords
- piston
- pressure piston
- ring
- high pressure
- pressure
- 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
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The utility model relates to a multi-stage supercharged high-pressure piston. The multi-stage supercharged high-pressure piston comprises a high-pressure piston body and a piston cover sleeving the lower portion of the high-pressure piston body and is characterized in that the lateral side of the high-pressure piston body is provided with an upper piston ring and a lower piston ring, the lower end face of the upper piston ring and the upper end face of the lower piston ring are semicircular grooves in which seal rings are arranged, and a valve core is connected to the upper portion of a tower spring which is fixed to the bottom of an inner cavity of the piston cover. The multi-stage supercharged high-pressure piston is sealed by the seal rings under the condition of low pressure and jointly sealed by the seal rings and the piston rings under the condition of high pressure, thereby better sealing effects can be achieved.
Description
Technical field
The utility model relates to a kind of multi-stage booster formula high pressure piston, belongs to mechanical field.
Background technique
Traditional high pressure piston normally utilizes seal ring to seal, and utilizes seal ring sealing normal in the situation that of low pressure, but depend merely on seal ring in the situation that of high pressure, held and can't stand and can damage seal ring by so large pressure, so that whole piston.
Model utility content
In order to overcome defect of the prior art, the technological scheme that the utility model adopts is: a kind of multi-stage booster formula high pressure piston, comprise high pressure piston body and the piston cap that is enclosed within high pressure piston body bottom, it is characterized in that: the side of described high pressure piston body is provided with upper piston ring and lower piston ring, the upper-end surface of the lower end surface of described upper piston ring and lower piston ring is half slot, in described half slot, be provided with seal ring, the intracavity bottom of described piston cap is fixed with pagoda spring, and described pagoda spring top is connected with spool.
The utility model is sealed by seal ring in the situation that of low pressure, and at situation lower seal and the piston ring combination seal of high pressure, such sealing effect is better.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the schematic diagram of preferred embodiment of the present utility model;
In figure: 1, high pressure piston body; 2, upper piston ring; 3, seal ring; 4, spool; 5, pagoda spring; 6, lower piston ring; 7, piston cap.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1; the utility model is a kind of multi-stage booster formula high pressure piston; comprise high pressure piston body 1 and the piston cap 7 that is enclosed within high pressure piston body 1 bottom; the side of described high pressure piston body 1 is provided with upper piston ring 2 and lower piston ring 6; the upper-end surface of the lower end surface of described upper piston ring 2 and lower piston ring 6 is half slot; in described half slot, be provided with seal ring 3; the piston ring of half slot can effectively be protected seal ring 3; the intracavity bottom of described piston cap 7 is fixed with pagoda spring 5, and described pagoda spring 5 tops are connected with spool 4.Change like this high pressure piston and by seal ring, sealed the in the situation that of low pressure, at situation lower seal and the piston ring combination seal of high pressure, such sealing effect is better.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this model utility technological thought, carry out various change and modification completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to claim scope.
Claims (1)
1. a multi-stage booster formula high pressure piston, comprise high pressure piston body and the piston cap that is enclosed within high pressure piston body bottom, it is characterized in that: the side of described high pressure piston body is provided with upper piston ring and lower piston ring, the upper-end surface of the lower end surface of described upper piston ring and lower piston ring is half slot, in described half slot, be provided with seal ring, the intracavity bottom of described piston cap is fixed with pagoda spring, and described pagoda spring top is connected with spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247450.6U CN203906767U (en) | 2014-05-14 | 2014-05-14 | Multi-stage supercharged high-pressure piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247450.6U CN203906767U (en) | 2014-05-14 | 2014-05-14 | Multi-stage supercharged high-pressure piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906767U true CN203906767U (en) | 2014-10-29 |
Family
ID=51781048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420247450.6U Expired - Lifetime CN203906767U (en) | 2014-05-14 | 2014-05-14 | Multi-stage supercharged high-pressure piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906767U (en) |
-
2014
- 2014-05-14 CN CN201420247450.6U patent/CN203906767U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |