CN102297261A - Piston and sealing ring easily assembling combination structure - Google Patents
Piston and sealing ring easily assembling combination structure Download PDFInfo
- Publication number
- CN102297261A CN102297261A CN2011102614540A CN201110261454A CN102297261A CN 102297261 A CN102297261 A CN 102297261A CN 2011102614540 A CN2011102614540 A CN 2011102614540A CN 201110261454 A CN201110261454 A CN 201110261454A CN 102297261 A CN102297261 A CN 102297261A
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- sealing ring
- piston
- seal ring
- ring
- diameter
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Abstract
The invention discloses a piston and sealing ring easily assembling combination structure. A piston comprises a piston head and a piston rod; an inner sealing ring and an outer sealing ring are arranged in a mounting groove formed on the piston head; the piston head consists of two cylinders with different diameters, which are connected; the mounting groove is formed on the cylinder with the smaller diameter; the diameter of the cylinder with the smaller diameter is less than or equal to the inner diameter of the outer sealing ring; the cylinder with the smaller diameter is provided with a positioning groove; a check ring is clamped in the positioning groove; and the inner sealing ring and the outer sealing ring are positioned between the check ring and the cylinder with the larger diameter. The inner sealing ring is arranged in the mounting groove, the outer sealing ring is sleeved on the inner sealing ring, and the check ring is clamped in the positioning groove, so that the inner sealing ring and the outer sealing ring are reliably arranged. The piston head consists of the two cylinders with the different diameters, which are connected, so the outer sealing ring is easily assembled and disassembled.
Description
Technical field
The present invention relates to the composite structure of piston and seal ring.
Background technique
The composite structure of existing piston and seal ring is, has mounting groove on a cylindrical piston head, from the inside to the outside, inner seal ring and exterior seal ring is housed successively in mounting groove.Because inner seal ring is generally the rubber material, exterior seal ring is generally engineering plastics, therefore the deficiency of the composite structure of above-mentioned existing piston and seal ring existence is: when the dismounting exterior seal ring, it need be enlarged by force, easily with its damage, and dismounting exterior seal ring inconvenience.
Summary of the invention
The object of the present invention is to provide a kind of piston and seal ring easy assembling type composite structure, this composite structure can make the easy disassembling of inside and outside seal ring.
For achieving the above object, the present invention adopts following scheme: piston and seal ring easy assembling type composite structure, piston has piston head and piston rod, inner seal ring and exterior seal ring are housed in the mounting groove that has on the piston head, piston head is connected to form by the cylindrical body that two diameters differ, mounting groove is opened on the less cylindrical body of diameter, the less cylindrical diameter of diameter is smaller or equal to the internal diameter of exterior seal ring, on the less cylindrical body of diameter, have locating slot, be installed with back-up ring in the locating slot, inner seal ring and exterior seal ring are between the bigger cylindrical body of back-up ring and diameter.
By such scheme as seen, when piston provided by the invention and seal ring easy assembling type composite structure are installed, earlier inner seal ring is loaded in the mounting groove, again exterior seal ring is enclosed within on the inner seal ring, and then back-up ring is stuck in the locating slot, can guarantee the reliable installation of inside and outside seal ring.Because piston head is connected to form by the cylindrical body that two diameters differ, exterior seal ring can be easy to dismounting.In addition, be loaded on piston in the cylinder body after, be subjected to the restriction of cylinder inner bore, back-up ring can not come off from mounting groove.
The present invention is rational in infrastructure, use is reliable, easy accessibility, quick.
Description of drawings
Fig. 1 is the structural drawing of one embodiment of the invention;
Fig. 2 is the structural representation of back-up ring.
Embodiment
Further specify the present invention below in conjunction with embodiment and accompanying drawing.
Referring to Fig. 1
In piston provided by the invention and the seal ring easy assembling type composite structure, piston has piston head 1 and piston rod 2, inner seal ring 3 and exterior seal ring 4 are housed in the mounting groove 1c that has on the piston head 1, the cylindrical body 1a that piston head 1 is differed by two diameters, cylindrical body 1b connects to form, mounting groove 1c opens on the less cylindrical body 1b of diameter, the diameter of the cylindrical body 1b that diameter is less is smaller or equal to the internal diameter of exterior seal ring 4, on the less cylindrical body 1b of diameter, have locating slot 1d, be installed with back-up ring 5 in the locating slot 1d, inner seal ring 3 and exterior seal ring 4 are between the bigger cylindrical body 1a of back-up ring 5 and diameter.
In conjunction with Fig. 1, Fig. 2
For better that inner seal ring 3, exterior seal ring 4 is fixing, in the present embodiment, locating slot 1d is circular, and mounting groove 1c communicates with locating slot 1d, and back-up ring 5 is more than two, back-up ring 5 be shaped as an annulus section.The internal diameter of back-up ring 5 is identical with the diameter of locating slot 1d bottom land.
Claims (2)
1. piston and seal ring easy assembling type composite structure, piston has piston head and piston rod, inner seal ring and exterior seal ring are housed in the mounting groove that has on the piston head, it is characterized in that: piston head is connected to form by the cylindrical body that two diameters differ, mounting groove is opened on the less cylindrical body of diameter, the less cylindrical diameter of diameter is smaller or equal to the internal diameter of exterior seal ring, on the less cylindrical body of diameter, have locating slot, be installed with back-up ring in the locating slot, inner seal ring and exterior seal ring are between the bigger cylindrical body of back-up ring and diameter.
2. piston according to claim 1 and seal ring easy assembling type composite structure is characterized in that: locating slot is circular, and mounting groove communicates with locating slot, and back-up ring is more than two, back-up ring be shaped as an annulus section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102614540A CN102297261A (en) | 2011-09-06 | 2011-09-06 | Piston and sealing ring easily assembling combination structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102614540A CN102297261A (en) | 2011-09-06 | 2011-09-06 | Piston and sealing ring easily assembling combination structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102297261A true CN102297261A (en) | 2011-12-28 |
Family
ID=45357864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102614540A Pending CN102297261A (en) | 2011-09-06 | 2011-09-06 | Piston and sealing ring easily assembling combination structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102297261A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498918A (en) * | 2013-09-29 | 2014-01-08 | 苏州好特斯模具有限公司 | High-temperature cylinder sealing assembly |
| CN104214347A (en) * | 2014-08-27 | 2014-12-17 | 无锡同心塑料制品有限公司 | Sealing device between two objects of performing relative reciprocating motion |
| CN113175381A (en) * | 2021-05-20 | 2021-07-27 | 魏云冬 | Low inertia crankshaft transmission system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038968U (en) * | 1988-08-05 | 1989-06-07 | 李九平 | Piston ring |
| CN2152905Y (en) * | 1993-04-10 | 1994-01-12 | 新汶矿务局 | Single-hydraulic prop piston head |
| EP0672850A1 (en) * | 1994-03-14 | 1995-09-20 | Ford Motor Company Limited | A piston and ring assembly |
| CN1492136A (en) * | 2002-10-22 | 2004-04-28 | 高敦华 | Cut sealing double ring piston engine and working unit |
| CN202228663U (en) * | 2011-09-06 | 2012-05-23 | 倪禹隆 | Conveniently-assembled combination structure of piston and sealing ring |
-
2011
- 2011-09-06 CN CN2011102614540A patent/CN102297261A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038968U (en) * | 1988-08-05 | 1989-06-07 | 李九平 | Piston ring |
| CN2152905Y (en) * | 1993-04-10 | 1994-01-12 | 新汶矿务局 | Single-hydraulic prop piston head |
| EP0672850A1 (en) * | 1994-03-14 | 1995-09-20 | Ford Motor Company Limited | A piston and ring assembly |
| CN1492136A (en) * | 2002-10-22 | 2004-04-28 | 高敦华 | Cut sealing double ring piston engine and working unit |
| CN202228663U (en) * | 2011-09-06 | 2012-05-23 | 倪禹隆 | Conveniently-assembled combination structure of piston and sealing ring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498918A (en) * | 2013-09-29 | 2014-01-08 | 苏州好特斯模具有限公司 | High-temperature cylinder sealing assembly |
| CN104214347A (en) * | 2014-08-27 | 2014-12-17 | 无锡同心塑料制品有限公司 | Sealing device between two objects of performing relative reciprocating motion |
| CN113175381A (en) * | 2021-05-20 | 2021-07-27 | 魏云冬 | Low inertia crankshaft transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111228 |