CN207261199U - A kind of piston for the compression of two-stage air - Google Patents
A kind of piston for the compression of two-stage air Download PDFInfo
- Publication number
- CN207261199U CN207261199U CN201720832319.XU CN201720832319U CN207261199U CN 207261199 U CN207261199 U CN 207261199U CN 201720832319 U CN201720832319 U CN 201720832319U CN 207261199 U CN207261199 U CN 207261199U
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- piston
- piston part
- compression
- cylinder
- stick harness
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
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Abstract
The utility model discloses a kind of piston for the compression of two-stage air, the stick harness of the piston is equipped with the tapered portion of pyramidal structure, the stick harness of piston is divided into piston part and lower piston part；Upper piston part and lower piston part are cylindrical structural；Wherein, top plug portion is located at the top of lower piston part, and has a diameter larger than the diameter of lower piston part.Upper piston part and lower piston part are equipped with sealing mechanism.The utility model is divided into upper piston part and lower piston part by the design piston stick harness of stick harness tapered portion, the top face of wherein upper piston part forms first order compression chamber in cylinder piston intracavitary, the lower section of tapered portion forms second level compression chamber in the plunger shaft of cylinder, so as to fulfill the two stages of compression of single cylinder single-piston.
Description
Technical field
It the utility model is related to the piston of air compressor.
Background technology
Piston type air compressor is moved back and forth in cylinder by crankshaft-link rod band piston and realizes that air compresses.Generally
Piston type air compressor in, when piston is close to axis, cylinder is from ambient inlet air；When piston is away from Crankshaft
The air in cylinder is compressed during the heart.Compressed when one major issue of this air compressor is cylinder air-breathing with air
When, piston stress differs greatly, and causes to vibrate larger.And this air compressor is due to its own characteristic, it usually needs point
Level compression.Implements spatial scalable compression can reduce delivery temperature, save work done during compression, improve volumetric efficiency, increase compressed gas capacity.This
Outside, in marine air compressor, since ship space is limited, can accomplish more for the volume requirement of air compressor
It is compact.
The content of the invention
Problem to be solved in the utility model：Single-piston realizes two stages of compression.
To solve the above problems, the scheme that the utility model uses is as follows：
A kind of piston for the compression of two-stage air, the stick harness of the piston are equipped with the tapered portion of pyramidal structure, make piston
Stick harness is divided into piston part and lower piston part；Upper piston part and lower piston part are cylindrical structural；Wherein, top plug portion is located at lower piston part
Top, and have a diameter larger than the diameter of lower piston part.
Further, upper piston part is equipped with the first sealing mechanism；Lower piston part is equipped with the second sealing mechanism.
The technique effect of the utility model is as follows：Top plug is divided into by the design piston stick harness of stick harness tapered portion
Portion and lower piston part, wherein the top face of upper piston part forms first order compression chamber in cylinder piston intracavitary, the lower section of tapered portion exists
Second level compression chamber is formed in the plunger shaft of cylinder, so as to fulfill the two stages of compression of single cylinder single-piston.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment.
Embodiment
The utility model is described in further details below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of piston for the compression of two-stage air, including stick harness.Connecting rod chamber 25 is equipped with stick harness.Connecting rod
Chamber 25 is used for installing connecting rods 39 so that piston can be connected with bent axle.The cone of up big and down small pyramidal structure is provided with stick harness
Shape portion 21.Stick harness is divided into upper piston part 22 and lower piston part 23 by tapered portion 21.Upper piston part 22 and lower piston part 23 are cylindrical knot
Structure, wherein, upper piston part 22 is located at the top of lower piston part 23, and has a diameter larger than the diameter of lower piston part 23.The top of upper piston part 22
Portion is the top surface 24 of stick harness, and the bottom surface of lower piston part 23 has the opening of connecting rod chamber 25.First sealer is installed on upper piston part 22
Structure 221.Lower 23 lower end of piston part is provided with the second sealing mechanism 231.First sealing mechanism 221 and the second sealing mechanism 231 by
Sealing ring and oil-scraping ring are formed.
When the piston of the present embodiment is installed on cylinder piston intracavitary, cylinder piston chamber has and 21 same slope of tapered portion
Interior tapering so that cylinder piston chamber is divided into compression chamber and directed cavity up and down.Wherein, upper piston part 22 is located in compression chamber, and
Compression chamber is formed by being sealed between the first sealing mechanism 221 and the cavity wall of compression chamber, and in the top of top surface 24.Lower piston part 23
Lower end be located in directed cavity, and pass through between the second sealing mechanism 231 and the cavity wall of directed cavity realize sealing.Due to tapered portion
21 presence causes the lower section of tapered portion 21 to form the compression chamber of annular in cylinder piston intracavitary.The compression chamber of the top of top surface 24
Cross section is much larger than the compression chamber of the lower section of tapered portion 21, and therefore, the compression chamber of the top of top surface 24 can be used as first order compression chamber, and
The compression chamber of the lower section of tapered portion 21 can be used as second level compression chamber.The bottom for being located at cylinder piston chamber into outlet of first order compression chamber
Portion, the interior tapering into outlet between compression chamber and directed cavity of second level compression chamber.First order compression chamber and second level pressure
The two-stage air compressor of single cylinder single-piston is formed after the cascade of contracting chamber.
Claims (1)
1. a kind of piston for the compression of two-stage air, it is characterised in that the stick harness of the piston is equipped with the tapered portion of pyramidal structure
(21), the stick harness of piston is made to be divided into piston part (22) and lower piston part (23)；Upper piston part (22) and lower piston part (23) are circle
Column construction；Wherein, upper piston part (22) is located at the top of lower piston part (23), and has a diameter larger than the diameter of lower piston part (23)；
It is the top surface (24) of stick harness at the top of upper piston part (22)；Upper piston part (22) is equipped with the first sealing mechanism (221)；Lower piston part (23)
It is equipped with the second sealing mechanism (231)；When the piston is installed on cylinder piston intracavitary, cylinder piston chamber is divided into pressure up and down
Contracting chamber and directed cavity；Wherein, upper piston part (22) is located in compression chamber, and passes through the first sealing mechanism (221) and the chamber of compression chamber
Sealed between wall, and first order compression chamber is formed in the top of top surface (24)；The lower end of lower piston part (23) is located in directed cavity, and
Sealing is realized between the cavity wall of directed cavity by the second sealing mechanism (231) so that live in cylinder the lower section of tapered portion (21)
Plug intracavitary forms the second level compression chamber of annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720832319.XU CN207261199U (en) | 2017-07-11 | 2017-07-11 | A kind of piston for the compression of two-stage air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720832319.XU CN207261199U (en) | 2017-07-11 | 2017-07-11 | A kind of piston for the compression of two-stage air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261199U true CN207261199U (en) | 2018-04-20 |
Family
ID=61926434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720832319.XU Active CN207261199U (en) | 2017-07-11 | 2017-07-11 | A kind of piston for the compression of two-stage air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207261199U (en) |
-
2017
- 2017-07-11 CN CN201720832319.XU patent/CN207261199U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |