CN102086854A - Piston component of portable air pump - Google Patents
Piston component of portable air pump Download PDFInfo
- Publication number
- CN102086854A CN102086854A CN2010106102157A CN201010610215A CN102086854A CN 102086854 A CN102086854 A CN 102086854A CN 2010106102157 A CN2010106102157 A CN 2010106102157A CN 201010610215 A CN201010610215 A CN 201010610215A CN 102086854 A CN102086854 A CN 102086854A
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- China
- Prior art keywords
- piston
- piston ring
- ring groove
- groove
- air pump
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Abstract
The invention discloses a piston component of a portable air pump. The piston component comprises a piston, and a piston connecting rod and a piston ring which are integrally molded with the piston, wherein a piston annular groove is formed along the circumferential direction of the side surface of the piston; the piston ring is embedded into the piston ring groove; the width of the piston ring groove is larger than the thickness of the piston ring; the piston ring can move up and down relative to the piston ring groove; an air current groove which is depressed from the bottom surface of the piston ring groove to the inner side and finally extends to the air compression end face of the piston is formed at a local position of the piston ring groove, and is communicated with a cylinder body; the air current groove is stepped; and the width of the piston ring groove is 1.4 to 2.5 times of the thickness of the piston ring. In the piston component, the width of the piston ring groove is set to be greater than the thickness of the piston ring by a certain value, the piston ring moves between the upper and lower side faces of the piston ring groove along the axial direction of the piston, and the air current groove is formed at the local position of the piston ring groove, so that air current flows from the piston ring groove into a cylinder in the air introducing process of the air pump, product reliability can be effectively enhanced and product cost can be effectively lowered.
Description
Technical field
The present invention relates to the portable air pump that a kind of dilly uses, particularly a kind of piston assembly of portable air pump.
Background technique
The piston assembly that the portable air pump of the middle-size and small-size vehicle use of prior art at present adopts comprises piston, piston ring and piston rod, wherein be connected by one-body molded in order to save cost between piston and the piston rod, the piston side surface is arranged with piston ring groove along circumferential hoop, piston ring is embedded in the piston ring groove, in addition, the end face of calming the anger of piston also is provided with the inlet hole of perforation, the piston gas-pressing end face is provided with the valve block of the unidirectional air inlet of control inlet hole, and valve block is fastenedly connected by screw and piston gas-pressing end face; The shortcoming of this structure is that piston intake valve block air-breathing, exhaust process at air pump when work needs resiliently deformable repeatedly, not only influence reliability of products, and, also need to increase tight assembly process to the requirement height of material, increase the cost of product.
Summary of the invention
The present invention is in order to overcome defective in the above-mentioned prior art, be set to greater than piston ring thickness certain value by the piston ring groove width, and the airslide of perforation is set between piston ring groove bottom surface and piston gas-pressing end face, be implemented in the air pump intake process air-flow and between piston ring groove downside and piston ring lower end surface, flow into cylinder, improve product reliability and reduce product cost through airslide.
The piston assembly of a kind of portable air pump of the present invention, comprise piston, with integrated piston rod of piston and piston ring, the piston side surface is arranged with piston ring groove along circumferential hoop, piston ring is embedded in the piston ring groove, the width of piston ring groove is greater than the thickness of piston ring, piston ring piston ring groove relatively moves up and down, and the local location of piston ring groove is provided with the airslide that caves in to the inside from the piston ring groove bottom surface and finally extend to the piston gas-pressing end face, and airslide is connected with cylinder block.
Preferably, the width of piston ring groove is 1.4 to 2.5 times of piston ring thickness.
Preferably, the airslide trend is for stepped.
Preferably, the outer rim of piston ring is connected with the slipper seal of cylinder inside wall; Under the cylinder intake state, piston ring is connected to the upper side wall of piston ring groove, and the space of air-flow between piston ring lower end surface and piston ring groove lower wall enters described airslide and then flow in the cylinder block; Under the cylinder compressive state, piston ring is connected to the lower wall of piston ring groove, and the gas in the cylinder is isolated from the outside.
Preferably, airslide can circumferentially evenly be provided with at interval along piston; Airslide quantity can be four.
Compared with prior art, the present invention has following beneficial effect:
Be set to greater than piston ring thickness certain value by the piston ring groove width, and piston ring is moved axially between the upper and lower side of piston ring groove along piston, and airslide is set at the local location of piston ring groove, be implemented in that air-flow flows into cylinder from piston ring groove in the air pump intake process, can effectively improve product reliability and reduce product cost.
Description of drawings
Fig. 1 is the exploded perspective view of the portable air pump piston assembly of the present invention;
Fig. 2 is that A-A after Fig. 1 assembles is to sectional view;
Fig. 3 is the work schematic representation of the portable air pump piston assembly of the present invention.
Mark the following drawings mark thereon in conjunction with the accompanying drawings:
The 1-piston, 11-piston ring groove, 12-airslide, 2-piston ring, 3-piston rod, 4-suction port, 5-cylinder block.
Embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subjected to the restriction of embodiment.
As shown in Figure 1 to Figure 3, the piston assembly of portable air pump of the present invention, comprise piston 1, with integrated piston rod 3 of piston and piston ring 2, the side surface of piston 1 is arranged with piston ring groove 11 along circumferential hoop, piston ring 2 is embedded in the piston ring groove 11, the width of piston ring groove is greater than the thickness of piston ring, and the width of piston ring groove is 1.4 to 2.5 times of piston ring thickness, like this piston ring 2 relatively piston ring groove 11 move up and down.Piston ring groove 11 circumferentially evenly is interval with four airslides 12 along piston, and airslide 12 extends to piston gas-pressing end face (being the end face of piston area to cylinder block 5) to the inside and finally from piston ring groove 11 bottom surfaces, and airslide 12 is connected with cylinder block 5.As shown in Figure 1, 2, the trend of this airslide 12 is stepped.
Further as shown in Figure 3, after piston assembly was installed, the outer rim of piston ring 2 was connected with the slipper seal of cylinder inside wall.Under the cylinder intake state, piston 1 and piston rod 3 axially move down along cylinder block 5, the piston ring 2 that embeds in the piston ring groove 11 moves on relative piston ring groove 11 at the rubbing action lower edge of cylinder block madial wall piston shaft, make piston ring 2 be connected to the upper side wall of piston ring groove 11, enter airslide 12 and then flow in the cylinder block 5 this moment from the space of air-flow between piston ring 2 lower end surfaces and piston ring groove 11 lower wall that suction port 4 enters; Charging stage finishes under the cylinder compressive state, piston upwards moves along cylinder axis, piston ring 2 moves down to relative piston ring groove 11 at the rubbing action lower edge of cylinder block madial wall piston shaft, piston ring 2 is connected to the lower wall of piston ring groove 11 and fits tightly, and makes that the gas in the cylinder block 5 is isolated from the outside.
The present invention is set to greater than piston ring thickness certain value by the piston ring groove width, and piston ring is moved axially between the upper and lower side of piston ring groove along piston, and airslide is set at the local location of piston ring groove, be implemented in that air-flow flows into cylinder from piston ring groove in the air pump intake process, can effectively improve product reliability and reduce product cost.
More than disclosed only be a specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (6)
1. the piston assembly of a portable air pump, comprise piston, with integrated piston rod of piston and piston ring, the piston side surface is arranged with piston ring groove along circumferential hoop, piston ring is embedded in the piston ring groove, it is characterized in that, the width of described piston ring groove is greater than the thickness of piston ring, piston ring piston ring groove relatively moves up and down, the local location of piston ring groove is provided with the airslide that caves in to the inside from the piston ring groove bottom surface and finally extend to the piston gas-pressing end face, and described airslide is connected with cylinder block.
2. the piston assembly of portable air pump according to claim 1 is characterized in that, the width of described piston ring groove is 1.4 to 2.5 times of piston ring thickness.
3. the piston assembly of portable air pump according to claim 1 and 2 is characterized in that, described airslide trend is for stepped.
4. the piston assembly of portable air pump according to claim 1 and 2 is characterized in that, the outer rim of described piston ring is connected with the slipper seal of cylinder inside wall; Under the cylinder intake state, piston ring is connected to the upper side wall of piston ring groove, and the space of air-flow between piston ring lower end surface and piston ring groove lower wall enters described airslide and then flow in the cylinder block; Under the cylinder compressive state, piston ring is connected to the lower wall of piston ring groove, and the gas in the cylinder is isolated from the outside.
5. the piston assembly of portable air pump according to claim 1 and 2 is characterized in that, described airslide circumferentially evenly is provided with at interval along piston.
6. the piston assembly of portable air pump according to claim 5 is characterized in that, described airslide quantity is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106102157A CN102086854A (en) | 2010-12-23 | 2010-12-23 | Piston component of portable air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106102157A CN102086854A (en) | 2010-12-23 | 2010-12-23 | Piston component of portable air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102086854A true CN102086854A (en) | 2011-06-08 |
Family
ID=44098801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106102157A Pending CN102086854A (en) | 2010-12-23 | 2010-12-23 | Piston component of portable air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102086854A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405617A (en) * | 2014-11-06 | 2015-03-11 | 格力休闲体育用品有限公司 | Piston inflating structure for piston-type air pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2091967U (en) * | 1991-03-22 | 1992-01-01 | 黄光智 | Plunger means of inflator |
| CN2148847Y (en) * | 1993-02-02 | 1993-12-08 | 丰余实业股份有限公司 | Improved structural double-direction air inlet piston |
| US6120266A (en) * | 1995-06-20 | 2000-09-19 | Atlas Copco Airpower, Naamloze Vennootschap | Piston mechanism with a flow passage through the piston |
| JP2001041161A (en) * | 1999-07-30 | 2001-02-13 | Teikoku Piston Ring Co Ltd | Non-lubricant compressor |
| CN2592899Y (en) * | 2002-12-11 | 2003-12-17 | 周文三 | Aircompressor piston body structure improvement |
| CN2617955Y (en) * | 2003-04-17 | 2004-05-26 | 上海齐耀动力技术有限公司 | Oilless lubricating pump gaseous ring set for piston air compressor |
| CN201209546Y (en) * | 2008-07-01 | 2009-03-18 | 陈人德 | Single pump piston type double-acting air-pumping device for air compressor |
| CN201908802U (en) * | 2010-12-23 | 2011-07-27 | 宁波五马实业有限公司 | Piston component of portable air pump |
-
2010
- 2010-12-23 CN CN2010106102157A patent/CN102086854A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2091967U (en) * | 1991-03-22 | 1992-01-01 | 黄光智 | Plunger means of inflator |
| CN2148847Y (en) * | 1993-02-02 | 1993-12-08 | 丰余实业股份有限公司 | Improved structural double-direction air inlet piston |
| US6120266A (en) * | 1995-06-20 | 2000-09-19 | Atlas Copco Airpower, Naamloze Vennootschap | Piston mechanism with a flow passage through the piston |
| JP2001041161A (en) * | 1999-07-30 | 2001-02-13 | Teikoku Piston Ring Co Ltd | Non-lubricant compressor |
| CN2592899Y (en) * | 2002-12-11 | 2003-12-17 | 周文三 | Aircompressor piston body structure improvement |
| CN2617955Y (en) * | 2003-04-17 | 2004-05-26 | 上海齐耀动力技术有限公司 | Oilless lubricating pump gaseous ring set for piston air compressor |
| CN201209546Y (en) * | 2008-07-01 | 2009-03-18 | 陈人德 | Single pump piston type double-acting air-pumping device for air compressor |
| CN201908802U (en) * | 2010-12-23 | 2011-07-27 | 宁波五马实业有限公司 | Piston component of portable air pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405617A (en) * | 2014-11-06 | 2015-03-11 | 格力休闲体育用品有限公司 | Piston inflating structure for piston-type air pump |
| CN104405617B (en) * | 2014-11-06 | 2016-09-21 | 格力休闲体育用品有限公司 | The piston pump structure of reciprocating air pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110608 |