CN214304251U - Piston ring for air compressor - Google Patents
Piston ring for air compressor Download PDFInfo
- Publication number
- CN214304251U CN214304251U CN202023006231.3U CN202023006231U CN214304251U CN 214304251 U CN214304251 U CN 214304251U CN 202023006231 U CN202023006231 U CN 202023006231U CN 214304251 U CN214304251 U CN 214304251U
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- oil ring
- ring body
- spring
- oil
- air compressor
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Abstract
The utility model discloses a piston ring for air compressor, including having the open-ended oil ring, the oil ring includes the oil ring body, the both sides face outwards is provided with the scraper about the oil ring body, oil ring body inner circle is provided with the arc recess, arc groove department is provided with the spiral and props the spring, still be provided with the oil return opening on the oil ring body, seted up the kidney-shaped recess on the upper and lower side of oil ring body, the center of the directional oil ring of kidney-shaped recess, both sides end are provided with the spring respectively in the kidney-shaped recess, two the spring is inconsistent, the piston head of air compressor is applied to the oil ring body, be provided with the arch on the piston head, the arch is arranged in two between the spring. The utility model discloses be provided with the arch on the piston head, waist shape recess and spring on the cooperation oil ring have both guaranteed opening of oil ring and the cylinder wall contact of compressor, realize frizing and sealed, have also guaranteed simultaneously that the drunkenness can not appear in the oil ring, and then can not influence a plurality of sealing ring matched with leakproofness.
Description
Technical Field
The utility model relates to a piston ring technical field, concretely relates to piston ring for air compressor.
Background
The piston ring is one of the important parts for keeping the air compressor air tightness, plays a key role in the aspect of effective pressure and kinetic energy utilization rate in a keeping cylinder, and is manufactured into an open state in order to avoid the phenomenon that the piston ring expands in the cylinder due to the existence of the thermal expansion coefficient of a metal material, and when a plurality of piston rings are arranged, the openings need to be staggered to ensure the sealing property, but the piston rings can move in the working process, so that the problem of the sealing property can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, the piston ring of drunkenness is reduced to the not enough of existence among the above-mentioned background art in the during operation.
In order to achieve the above object, the utility model relates to a piston ring for air compressor has adopted following technical scheme:
the utility model provides a piston ring for air compressor, is including having the open-ended oil ring, the oil ring includes the oil ring body, the both sides face is outwards provided with the scraper about the oil ring body, oil ring body inner circle is provided with the arc recess, arc groove department is provided with the spiral and props the spring, still be provided with the oil return opening on the oil ring body, the kidney-shaped recess has been seted up on the upper and lower side of oil ring body, the center of the directional oil ring of kidney-shaped recess, both sides end is provided with the spring respectively in the kidney-shaped recess, two the spring is inconsistent, the piston head of air compressor is applied to the oil ring body, be provided with the arch on the piston head, the arch is arranged in two between the spring.
The utility model relates to a piston ring for air compressor's further improvement part lies in, the one end of oil ring body is equipped with the arc fixed block, and the other end of oil ring body is provided with the arc slot of same radian, the fixed block inserts the slot, the bottom is provided with the second spring in the slot, the fixed block supports the second spring.
The utility model relates to a piston ring for air compressor's further improvement part is in, the overhead distance between two upper and lower archs of piston is less than the distance between the waist shape grooved underside of laying about highly being greater than of oil ring body between from top to bottom.
The utility model relates to a piston ring for air compressor's further improvement part lies in, the oil ring body adopts steel or cast iron material to make.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses be provided with the arch on the piston head, waist shape recess and spring on the cooperation oil ring have both guaranteed opening of oil ring and the cylinder wall contact of compressor, realize frizing and sealed, have also guaranteed simultaneously that the drunkenness can not appear in the oil ring, and then can not influence a plurality of sealing ring matched with leakproofness.
Drawings
Fig. 1 is a schematic top view of the present invention;
fig. 2 is a schematic front structural view of the present invention;
in the figure: the scraper comprises an oil ring body 1, a scraper 2, a spiral supporting spring 3, a waist-shaped groove 4, a spring 5, a fixing block 6, a slot 7 and a second spring 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, a piston ring for an air compressor comprises an oil ring with an opening, wherein the oil ring comprises an oil ring body 1, scrapers 2 are arranged on the upper side surface and the lower side surface of the oil ring body outwards, an arc-shaped groove is formed in the inner ring of the oil ring body, a spiral supporting spring 3 is arranged at the arc-shaped groove, an oil return port is further formed in the oil ring body, the structures are all conventional common structures, further, a waist-shaped groove 4 is formed in the upper side surface and the lower side surface of the oil ring body and points to the center of the oil ring, springs 5 are arranged at two side ends in the waist-shaped groove respectively, the springs are in contact with each other, the oil ring body is applied to a piston head of the air compressor, a protrusion is arranged on the piston head, and the protrusion is arranged between the springs. The bulge can be limited between the two springs, can adapt to the elastic expansion of the oil ring body, can ensure that the oil ring does not move, and ensures the sealing property.
Further, an arc-shaped fixing block 6 is arranged at one end of the oil ring body, an arc-shaped slot 7 with the same radian is formed in the other end of the oil ring body, the fixing block is inserted into the slot, a second spring is arranged at the bottom in the slot, and the fixing block abuts against the second spring 8. The opening performance of the oil ring is guaranteed, and sealing is further guaranteed.
The distance between the upper and lower bulges on the piston head is smaller than the distance between the upper and lower parts of the oil ring body and larger than the distance between the bottom surfaces of the waist-shaped grooves which are arranged up and down. The oil ring is convenient to install on the piston head.
The oil ring body is made of steel or cast iron materials.
The utility model discloses a theory of operation does: install the oil ring body on the piston head for the arch about the piston head inserts between the spring of waist shape recess, make the fixed block insert slot receive the second spring extrusion again, at this moment, the oil ring installation finishes, in operation, the oil ring can open because elasticity, cooperation second spring, can inseparabler and cylinder wall contact, realize better frizing, reciprocate the in-process at the oil ring along with the piston head, can open bigger, realize spacingly by the spring this moment, simultaneously, the spring has also guaranteed that the oil ring can not the drunkenness.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The utility model provides a piston ring for air compressor, is including having the open-ended oil ring, the oil ring includes the oil ring body, the both sides face is outwards provided with the scraper about the oil ring body, oil ring body inner circle is provided with the arc recess, arc groove department is provided with the spiral and props the spring, still be provided with oil return opening, its characterized in that on the oil ring body: the oil ring comprises an oil ring body and is characterized in that waist-shaped grooves are formed in the upper side surface and the lower side surface of the oil ring body, the waist-shaped grooves point to the center of the oil ring, springs are arranged at two side ends in the waist-shaped grooves respectively, the two springs are abutted, the oil ring body is applied to a piston head of an air compressor, a protrusion is arranged on the piston head, and the protrusion is arranged between the two springs.
2. A piston ring for an air compressor according to claim 1, wherein: the oil ring is characterized in that an arc-shaped fixing block is arranged at one end of the oil ring body, an arc-shaped slot with the same radian is formed in the other end of the oil ring body, the fixing block is inserted into the slot, a second spring is arranged at the bottom in the slot, and the fixing block abuts against the second spring.
3. A piston ring for an air compressor according to claim 1, wherein: the distance between the upper and lower bulges on the piston head is smaller than the distance between the upper and lower parts of the oil ring body and larger than the distance between the bottom surfaces of the waist-shaped grooves which are arranged up and down.
4. A piston ring for an air compressor according to claim 1, wherein: the oil ring body is made of steel or cast iron materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023006231.3U CN214304251U (en) | 2020-12-15 | 2020-12-15 | Piston ring for air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023006231.3U CN214304251U (en) | 2020-12-15 | 2020-12-15 | Piston ring for air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214304251U true CN214304251U (en) | 2021-09-28 |
Family
ID=77853603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023006231.3U Active CN214304251U (en) | 2020-12-15 | 2020-12-15 | Piston ring for air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214304251U (en) |
-
2020
- 2020-12-15 CN CN202023006231.3U patent/CN214304251U/en active Active
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