CN202708051U - Piston rod - Google Patents
Piston rod Download PDFInfo
- Publication number
- CN202708051U CN202708051U CN 201220434834 CN201220434834U CN202708051U CN 202708051 U CN202708051 U CN 202708051U CN 201220434834 CN201220434834 CN 201220434834 CN 201220434834 U CN201220434834 U CN 201220434834U CN 202708051 U CN202708051 U CN 202708051U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- cavity
- rod body
- utility
- model
- 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 rod which comprises a seal cover (1) and a piston rod body (2); a cavity (3) is arranged in the piston rod body (2); the cavity (3) contains cooling fluid (4); and the seal cover (1) seals the cavity (3) by being connected with the piston rod body (2). According to the piston rod, because the cavity is arranged in the piston rod body and the cooling fluid is injected into the cavity, the heating temperature when the piston rod works is reduced, so that the piston rod does not easily expand and deform after being heated, the precision is not damaged, and the service life of the piston rod is prolonged.
Description
Technical field
The utility model relates to field of internal combustion engine, particularly a kind of piston rod.
Background technique
Piston rod in the existing internal-combustion engine needs support piston to do ceaselessly in when work to move back and forth, used to make long afterwards the easy expanded by heating distortion of piston rod, thereby destroyed the precision of piston rod, caused Efficiency Decreasing, reduced the working life of internal-combustion engine, but also can damage other accessories of internal-combustion engine.
The model utility content
The technical problem that (one) will solve
The technical problems to be solved in the utility model is the problem that will solve the easy expanded by heating distortion of piston rod.
(2) technological scheme
For addressing the above problem, piston rod of the present utility model comprises sealing cover and piston rod body; The inside of described piston rod body is provided with cavity, and described cavity is provided with cooling liquid, and described sealing cover makes the cavity sealing by being connected with the piston rod body.A kind of piston rod of the present utility model reduces the heating temperature of piston rod by cavity being set in the piston rod body and injecting cooling liquid, makes piston rod be difficult for the expanded by heating distortion.
In the above-mentioned piston rod, described piston rod body is threaded with sealing cover.
(3) beneficial effect
Piston rod of the present utility model, by cavity being set in the piston rod body and injecting cooling liquid, the heating temperature when reducing piston rod work makes piston rod be difficult for the expanded by heating distortion, and the precision of piston rod can not destroyed, thereby improves the working life of piston rod.
Description of drawings
Fig. 1 is the structural representation of piston rod of the present utility model;
1 is that sealing cover, 2 is that piston rod body, 3 is that cavity, 4 is cooling liquid among the figure.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, piston rod of the present utility model comprises sealing cover 1 and piston rod body 2; The inside of described piston rod body 2 is provided with cavity 3, and described cavity 3 is provided with cooling liquid 4, and described sealing cover 1 makes cavity 3 sealings by being threaded with piston rod body 2.A kind of piston rod of the present utility model arranges cavity 3 and injects cooling liquid 4 by piston rod body 2 is interior, reduces the heating temperature of piston rod, makes piston rod be difficult for the expanded by heating distortion.
Injection is opened sealing cover 1 during cooling liquid, the cavity 3 interior injection cooling liquids 4 of piston rod body 2 then, and then sealing cover 1 covers stopper rod body 2 and gets final product.
Piston rod of the present utility model arranges cavity 3 and injects cooling liquid by piston rod body 2 is interior, and the heating temperature when reducing piston rod work makes piston rod be difficult for the expanded by heating distortion, and the precision of piston rod can not destroyed, thereby improves the working life of piston rod.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. a piston rod is characterized in that, described piston rod comprises sealing cover (1) and piston rod body (2); The inside of described piston rod body (2) is provided with cavity (3), and described cavity (3) is provided with cooling liquid (4), and described sealing cover (1) makes cavity (3) sealing by being connected with piston rod body (2).
2. according to claim 1 described piston rod is characterized in that, described piston rod body (2) is threaded with sealing cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220434834 CN202708051U (en) | 2012-08-29 | 2012-08-29 | Piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220434834 CN202708051U (en) | 2012-08-29 | 2012-08-29 | Piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708051U true CN202708051U (en) | 2013-01-30 |
Family
ID=47588357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220434834 Expired - Fee Related CN202708051U (en) | 2012-08-29 | 2012-08-29 | Piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708051U (en) |
-
2012
- 2012-08-29 CN CN 201220434834 patent/CN202708051U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20130829 |