CN205298521U - Piston - Google Patents
Piston Download PDFInfo
- Publication number
- CN205298521U CN205298521U CN201520871783.0U CN201520871783U CN205298521U CN 205298521 U CN205298521 U CN 205298521U CN 201520871783 U CN201520871783 U CN 201520871783U CN 205298521 U CN205298521 U CN 205298521U
- Authority
- CN
- China
- Prior art keywords
- piston
- pin
- round pin
- hole
- ring
- 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
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a piston, the step part is connected with the piston body, be equipped with a piston round pin through -hole in the piston main part, be equipped with the piston round pin in the piston round pin through -hole, the one end shrink of piston round pin through -hole forms spacing platform, the internal diameter of spacing platform is less than the diameter of piston round pin, the one end butt of piston round pin spacing platform, the other end of piston round pin is fixed a position in piston round pin through -hole through the round pin retaining ring, the utility model discloses a round pin retaining ring only need be installed through spacing platform location, the other end of piston round pin through round pin retaining ring location to piston round pin one end during the assembly, the assembly of being convenient for improves assembly efficiency.
Description
Technical field
This utility model relates to a kind of piston.
Background technology
In prior art, the piston pin of piston is installed on piston pin through hole is the pin back-up ring location by two ends, and the installation selling back-up ring is complex, causes that piston assembly work is inefficient.
Utility model content
This utility model aims to overcome that above-mentioned the deficiencies in the prior art, it is provided that a kind of piston being easy to assembling.
The technical solution of the utility model is: a kind of piston, including piston main body, a piston pin through hole it is provided with in described piston main body, it is provided with piston pin in piston pin through hole, one end of described piston pin through hole is shunk and is formed limiting stand, the internal diameter of described limiting stand is less than the diameter of described piston pin, and one end of described piston pin abuts described limiting stand, and the other end of described piston pin is positioned in piston pin through hole by pin back-up ring.
Further, one end of described piston pin is provided with secondary pin, the diameter of described secondary pin is equal with the internal diameter of described limiting stand, the length of described secondary pin is more than the length of described limiting stand, consider that piston pin to do the left and right translation of slight amplitude in piston pin through hole, one secondary pin is set, makes secondary pin one end also reserve certain displacement space.
Further, described piston pin and described secondary pin are formed as one structure.
Further, the upper end of described piston main body is equipped with first gas ring, second gas ring and a pushing out ring from top to bottom successively, and described pushing out ring is clamped between two siding tracks.
Further, the top of described piston main body is additionally provided with three installations and shows that a boss, described three installations show the installation site of a boss corresponding described first gas ring, described second gas ring and described pushing out ring respectively.
Further, described installation shows that a boss is hemispherical.
The beneficial effects of the utility model are: piston pin one end of the present utility model is positioned by limiting stand, and the other end of piston pin is positioned by pin back-up ring, only need to install a pin back-up ring, it is simple to assembling, improve efficiency of assembling during assembling.
This utility model is also provided with first gas ring, second gas ring and a pushing out ring, improve the performance of piston, meanwhile, piston tip arranges three installations and shows a boss, be explicitly shown out first gas ring, second gas ring and pushing out ring opening towards position, improve efficiency of assembling further.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional view of Figure 1A-A.
Detailed description of the invention
By the examples below, and in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail.
In conjunction with shown in Fig. 1 and Fig. 2, a kind of piston, including piston main body 1, a piston pin through hole 2 it is provided with in piston main body 1, being provided with piston pin 3 in piston pin through hole 2, one end of piston pin through hole 2 is shunk and is formed limiting stand 4, and the internal diameter of limiting stand 4 is less than the diameter of piston pin 3, one end of piston pin 3 abuts limiting stand 4, and the other end of piston pin 3 is positioned in piston pin through hole 3 by pin back-up ring 5.
Further, one end of piston pin 3 is provided with secondary pin 6, and the diameter of secondary pin 6 is equal with the internal diameter of limiting stand 4, and the length of secondary pin 6 is more than the length of limiting stand 4.
Further, piston pin 3 and secondary pin 5 are formed as one structure.
Further, the upper end of piston main body 1 is equipped with first gas ring 7, second gas ring 8 and a pushing out ring 9 from top to bottom successively, and a pushing out ring 9 is clamped between two siding tracks 10.
Further, the top of piston main body 1 is additionally provided with three installations and shows a boss 11, and the installation site of a boss 11 corresponding first gas ring 7, second gas ring 8 and a pushing out ring 9 respectively is shown in three installations.
Further, installation shows that a boss 11 is for hemispherical.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (6)
1. a piston, including piston main body, a piston pin through hole it is provided with in described piston main body, it is provided with piston pin in piston pin through hole, it is characterized in that: one end of described piston pin through hole is shunk and formed limiting stand, the internal diameter of described limiting stand is less than the diameter of described piston pin, and one end of described piston pin abuts described limiting stand, and the other end of described piston pin is positioned in piston pin through hole by pin back-up ring.
2. a kind of piston according to claim 1, it is characterised in that: one end of described piston pin is provided with secondary pin, and the diameter of described secondary pin is equal with the internal diameter of described limiting stand, and the length of described secondary pin is more than the length of described limiting stand.
3. a kind of piston according to claim 2, it is characterised in that: described piston pin and described secondary pin are formed as one structure.
4. a kind of piston according to claim 1, it is characterised in that: the upper end of described piston main body is equipped with first gas ring, second gas ring and a pushing out ring from top to bottom successively, and described pushing out ring is clamped between two siding tracks.
5. a kind of piston according to claim 4, it is characterized in that: the top of described piston main body is additionally provided with three installations and shows that a boss, described three installations show the installation site of a boss corresponding described first gas ring, described second gas ring and described pushing out ring respectively.
6. a kind of piston according to claim 5, it is characterised in that: described installation shows that a boss is hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520871783.0U CN205298521U (en) | 2015-11-05 | 2015-11-05 | Piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520871783.0U CN205298521U (en) | 2015-11-05 | 2015-11-05 | Piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298521U true CN205298521U (en) | 2016-06-08 |
Family
ID=56438940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520871783.0U Expired - Fee Related CN205298521U (en) | 2015-11-05 | 2015-11-05 | Piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298521U (en) |
-
2015
- 2015-11-05 CN CN201520871783.0U patent/CN205298521U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20161105 |