CN202371075U - Piston special for gas spring - Google Patents
Piston special for gas spring Download PDFInfo
- Publication number
- CN202371075U CN202371075U CN2011204977845U CN201120497784U CN202371075U CN 202371075 U CN202371075 U CN 202371075U CN 2011204977845 U CN2011204977845 U CN 2011204977845U CN 201120497784 U CN201120497784 U CN 201120497784U CN 202371075 U CN202371075 U CN 202371075U
- Authority
- CN
- China
- Prior art keywords
- piston
- gas spring
- air spring
- special
- piston body
- 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
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a piston special for a gas spring. The piston special for the gas spring is used for automobiles, furniture and the like. The piston special for the gas spring comprises a piston body with a piston hole, wherein a step is formed on the piston body; and a sealing base which is matched with a sealing ring is arranged at the periphery of the step. The piston special for the gas spring can be simply processed, reduces the friction in a cylinder of the gas spring so as to eliminate abnormal sound, improves production efficiency, and optimizes the operational performance of a gas spring assembly.
Description
Technical field:
The utility model is relevant with the air spring on being used for automobile, furniture etc., and is special relevant with the air spring special piston.
Background technique:
At present; The air spring piston that each pressurized gas spring manufacturer is produced is owing to be product of metal material, and the difficulty of processing coefficient is big, and piston hole is difficult to avoid bad defectives such as burr in course of working; Piston hole is blocked in burr meeting on the high side; Cross gas and freely do not cause assembly the jam phenomenon to occur thereby cross oil, metallic material piston friction coefficient is big, and air spring piston-shaped for cylindrical, cooperate with the O RunddichtringO and not have leading role; Internal lubrication oil and gas do not have buffering behind the circulation piston hole, be prone to cause air spring assembly abnormal sound.
The model utility content:
The purpose of the utility model is in order to provide a kind of processing simple, to reduce air spring cylinder barrel internal friction power, eliminate abnormal sound, enhance productivity, optimizing the air spring special piston of air spring assembly usability.
The purpose of the utility model realizes like this:
The utility model air spring special piston includes the piston body of piston hole, it is characterized in that step is arranged on the piston body; The step periphery has the sealing seat that cooperates with seal ring, and piston body can adopt composite material, like polyformaldehyde composite material (POW), injection machine once-through; Processing method is simple, good product consistency, and making can be not jagged in efficient height and the piston hole; Composite material piston can more effectively reduce cylinder barrel internal friction power; Step and sealing seat are arranged on the piston body, work good with seal ring, steering capability is good.
Above-mentioned step end face has the circular groove that communicates with piston hole, lubricant oil, gas through the time play buffer function, avoid air spring assembly abnormal sound.
Above-mentioned piston body circumferential distribution has several grooves, has dwindled the area of contact with cylinder barrel, the friction factor when reducing air spring work, and simultaneously, when air spring stress was worked, groove played gas/lubricant oil effect after the O RunddichtringO is adjacent to piston.
Several above-mentioned grooves are evenly distributed on the piston body periphery.
The utility model processing is simple, reduces air spring cylinder barrel internal friction power, eliminates abnormal sound, enhances productivity, and optimizes air spring assembly usability.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is that the utility model and piston rod, seal ring assemble schematic representation.
Embodiment:
Referring to Fig. 1, Fig. 2, present embodiment air spring special piston comprises the piston body of processing with polyformaldehyde composite material that piston hole 1 is arranged 2.Step 3 is arranged on the piston body.The step periphery has the sealing seat 4 that cooperates with the O RunddichtringO.The step end face has the circular groove 5 that communicates with piston hole.The piston body periphery is evenly distributed with several grooves 6.
Fig. 3 is that the utility model and piston rod 10, O RunddichtringO 7 assemble schematic representation.The A stroke presses down direction for air spring stress among Fig. 3, and the B stroke is that air spring receives inner nitrogen pressure return direction.When piston rod assembly is worked at the A stroke; O RunddichtringO 7 pastes piston; Nitrogen, lubricant oil flow out through gas sheet 8 and the inflow of cylinder barrel gap, groove, when piston rod assembly is worked at the B stroke, and nitrogen; Lubricant oil flows into circular groove 5 through piston hole, and buffering back in circular groove 5 (this process rises and eliminates noise contributions) flows out through the air passing hole on the gas sheet 9 again.
Claims (4)
1. air spring special piston includes the piston body of piston hole, it is characterized in that step is arranged on the piston body, and the step periphery has the sealing seat that cooperates with seal ring.
2. air spring special piston as claimed in claim 1 is characterized in that the step end face has the circular groove that communicates with piston hole.
3. according to claim 1 or claim 2 air spring special piston is characterized in that the piston body circumferential distribution has several grooves.
4. air spring special piston as claimed in claim 3 is characterized in that several grooves are evenly distributed on the piston body periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204977845U CN202371075U (en) | 2011-12-05 | 2011-12-05 | Piston special for gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204977845U CN202371075U (en) | 2011-12-05 | 2011-12-05 | Piston special for gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371075U true CN202371075U (en) | 2012-08-08 |
Family
ID=46594779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204977845U Expired - Lifetime CN202371075U (en) | 2011-12-05 | 2011-12-05 | Piston special for gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371075U (en) |
-
2011
- 2011-12-05 CN CN2011204977845U patent/CN202371075U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101979889B (en) | Lining machining method | |
| CN106042431A (en) | Double-station punching machine | |
| CN202371075U (en) | Piston special for gas spring | |
| CN201559053U (en) | Assembling die of V-shaped belt wheel of automobile power steering pump | |
| CN102259129A (en) | Flanging process for full-circle main bearing and special die thereof | |
| CN207814059U (en) | Pneumatic hydraulic pressurized construction | |
| CN203906205U (en) | Power end of high-pressure grouting pump | |
| CN202140555U (en) | Braking device of planet speed reducing machine | |
| CN210547604U (en) | Piston ring processing device | |
| CN203670067U (en) | Engine fuel pump roller tappet | |
| CN202251956U (en) | Floating gap seal with high speed, high frequency and high abrasion resistance | |
| CN102335899A (en) | Assembly device for square seal ring for holes | |
| CN204458156U (en) | Custom Prosthesis high-power diesel plunger coupled parts | |
| CN203146184U (en) | Needle valve structure capable of prolonging service life of oil nozzle | |
| CN200961530Y (en) | Diesel engine piston with decompression step | |
| CN208534874U (en) | A kind of rapid-pressurizing hydraulic cylinder | |
| CN201100514Y (en) | Novel pole piston pump for high-pressure oil injector | |
| CN209067459U (en) | A kind of plunger pump cylinder body set | |
| CN203146482U (en) | Rod chamber side buffer structure of hydraulic cylinder | |
| CN205732446U (en) | A kind of workpiece decompressor | |
| CN202427718U (en) | End cap of bending cylinder | |
| CN104728004A (en) | Delivery valve pressing seat on diesel engine high-pressure oil pumps | |
| CN214304133U (en) | Oil inlet valve component with adjustable oil inlet pressure of fuel supply system | |
| CN214171004U (en) | Piston rod limit structure for hydraulic cylinder | |
| CN204436930U (en) | A kind of speed governing cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |