CN214997944U

CN214997944U - High-air-tightness engine piston ring

Info

Publication number: CN214997944U
Application number: CN202120447941.5U
Authority: CN
Inventors: 张韦
Original assignee: Shenzhen Weimaite Hardware And Plastic Products Co ltd
Current assignee: Shenzhen Weimaite Hardware And Plastic Products Co ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-12-03
Anticipated expiration: 2031-03-02

Abstract

The utility model discloses a high gas tightness engine piston ring relates to the engine field. Including the piston ring body, the one end fixedly connected with bar lug of piston ring body, the open slot has been seted up to the other end of piston ring body, the inside of open slot cup joints with bar lug's outside, a plurality of arc draw-in grooves have been seted up with the top symmetry to the bottom of open slot inner wall, bar lug is close to the bottom of open slot and is provided with two arc fixture blocks with the top symmetry, the outside of arc fixture block is connected with the inside block of arc draw-in groove. The utility model discloses a through the design of arc fixture block and arc draw-in groove, under the condition that the motor operation leads to the piston ring body thermal expansion, utilize the high gas tightness of joint between arc fixture block and the arc draw-in groove in order to last realization engine operation, wearing and tearing in the cylinder are greatly alleviated to this mode, have avoided piston ring mouth department can increase the problem of air leakage.

Description

High-air-tightness engine piston ring

Technical Field

The utility model relates to the technical field of engines, specifically a high gas tightness engine piston ring.

Background

A piston ring is correspondingly arranged in a piston ring groove formed in the existing piston, and a certain opening gap must be reserved for the piston ring due to the influence of metal expansion caused by heat and contraction caused by cold.

The gas leaked from the annular opening of the existing piston impacts the piston on the inner side of the cylinder along the piston to knock the cylinder, so that the abrasion in the cylinder is increased, and the gas leakage at the annular opening of the piston is increased.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art not enough, the utility model discloses a high gas tightness engine piston ring to solve the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a high gas tightness engine piston ring, includes the piston ring body, the one end fixedly connected with bar lug of piston ring body, the open slot has been seted up to the other end of piston ring body, the inside of open slot cup joints with the outside of bar lug, a plurality of arc draw-in grooves have been seted up with the top symmetry to the bottom of open slot inner wall, the bar lug is close to the bottom of open slot and is provided with two arc fixture blocks with the top symmetry, the outside of arc fixture block is connected with the inside block of arc draw-in groove.

Preferably, two elastic parts are symmetrically and fixedly embedded in one side, close to the open slot, of the strip-shaped convex block, and one side parts of the two elastic parts are fixedly connected with one sides of the two arc-shaped clamping blocks.

Preferably, the top end of the piston ring body is fixedly connected with a first annular bump, and the bottom end of the piston ring body is fixedly connected with a second annular bump.

Preferably, the inner wall of the second annular bump is attached to the outer wall of the first annular bump.

The utility model discloses a high gas tightness engine piston ring, its beneficial effect who possesses as follows:

the utility model, through the design of the arc-shaped clamping block and the arc-shaped clamping groove, when the motor runs for a certain time, the bar-shaped convex block moves towards the direction far away from the open slot under the thermal expansion of the piston ring body, the bar-shaped convex block drives the two arc-shaped clamping blocks to move under the movement of the bar-shaped convex block, when the arc-shaped clamping block moves out of the arc-shaped clamping groove, the arc-shaped clamping block is stressed to move towards the inside of the strip-shaped convex block, the elastic part is stressed and compressed under the movement of the arc-shaped clamping block, after the arc fixture block moves to the arc draw-in groove top of suitable position, promote the arc fixture block and remove to arc draw-in groove direction under the bounce of elastic component, until the arc fixture block realize with the arc draw-in groove between the joint, then under the joint between arc fixture block and the arc draw-in groove with the high gas tightness of continuous realization engine operation, the wearing and tearing in the cylinder have greatly been alleviated to this mode, have avoided piston ring mouth department can increase the problem of air leakage.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the back of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a piston ring body; 2. a first annular projection; 3. a bar-shaped projection; 4. an open slot; 5. a second annular bump; 6. an arc-shaped clamping groove; 7. an elastic member; 8. an arc-shaped clamping block.

Detailed Description

The embodiment of the utility model discloses a high-air-tightness engine piston ring, as shown in figures 1-3, the high-air-tightness engine piston ring comprises a piston ring body 1, the whole piston ring body 1 is made of steel material, one end of the piston ring body 1 is fixedly connected with a strip-shaped lug 3, the other end of the piston ring body 1 is provided with an open slot 4, the inside of the open slot 4 is sleeved with the outside of the strip-shaped lug 3, the expansion and contraction of the piston ring body 1 can be adapted through the sleeving between the strip-shaped lug 3 and the open slot 4, so as to improve the service life of the piston ring body 1, the bottom end and the top end of the inner wall of the open slot 4 are symmetrically provided with a plurality of arc-shaped clamping grooves 6, two arc-shaped clamping blocks 8 are symmetrically arranged at the bottom end and the top end of the strip-shaped lug 3, the outside of the arc-shaped clamping blocks 8 are connected with the inside of the arc-shaped clamping grooves 6 in a clamping manner, when the piston ring body 1 is heated and contracted with cold, the strip-shaped lug 3 is forced to move in the open slot 4, the arc-shaped clamping block 8 is connected with the arc-shaped clamping groove 6 in a clamping manner, so that the piston ring body 1 is ensured to have certain high air tightness to the running of an engine when in use.

Bar lug 3 is close to the fixed two elastic component 7 that are equipped with of one side symmetry of open slot 4, elastic component 7 is for having certain elastic hard material, one side subsection and one side fixed connection of two arc fixture block 8 of two elastic component 7, when bar lug 3 removes in

open slot

4, 8 atress of arc fixture block are to removing in bar lug 3, make elastic component 7 atress compression under the arc fixture block 8 removes, when arc fixture block 8 removes to 6 tops of other arc draw-in grooves, utilize the elastic potential energy of elastic component 7, in order to realize that the block between arc fixture block 8 and the arc draw-in groove 6 is connected.

The top fixedly connected with first annular lug 2 of piston ring body 1, the bottom fixedly connected with second annular lug 5 of piston ring body 1, the inner wall of second annular lug 5 and the outer wall of first annular lug 2 laminate each other, through the laminating between second annular lug 5 and the first annular lug 2 to realize the cooperation between a plurality of piston ring bodies 1 and use.

The working principle is as follows: install behind the engine piston at piston ring body 1, when the engine operation certain time, piston ring body 1 thermal expansion makes bar lug 3 remove to the direction of keeping away from open slot 4 down, bar lug 3 removes and drives two arc fixture blocks 8 removal down, when arc fixture block 8 shifts out arc draw-in groove 6, arc fixture block 8 atress removes to bar lug 3 inside, make elastic component 7 atress compression under the arc fixture block 8 removes, after arc fixture block 8 removes to the arc draw-in groove 6 top of suitable position, promote arc fixture block 8 and remove to arc draw-in groove 6 direction under elastic component 7's bounce, until arc fixture block 8 realize with the joint between arc draw-in groove 6, then under the joint between arc fixture block 8 and arc draw-in groove 6 with the high gas tightness of continuous realization engine operation.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A high gas tightness engine piston ring, includes piston ring body (1), its characterized in that: the piston ring is characterized in that one end of the piston ring body (1) is fixedly connected with a strip-shaped convex block (3), an open groove (4) is formed in the other end of the piston ring body (1), the inside of the open groove (4) is sleeved with the outside of the strip-shaped convex block (3), a plurality of arc-shaped clamping grooves (6) are formed in the bottom end and the top end of the inner wall of the open groove (4) symmetrically, two arc-shaped clamping blocks (8) are arranged at the bottom end, close to the open groove (4), of the strip-shaped convex block (3) and symmetrically arranged at the top end of the open groove (4), and the outside of the arc-shaped clamping blocks (8) is connected with the inside of the arc-shaped clamping grooves (6) in a clamping mode.

2. A highly gas-tight engine piston ring according to claim 1, characterized in that: two elastic pieces (7) are symmetrically and fixedly embedded in one side, close to the open slot (4), of the strip-shaped convex block (3), and one side of each elastic piece (7) is fixedly connected with one side of each arc-shaped clamping block (8).

3. A highly gas-tight engine piston ring according to claim 1, characterized in that: the top end of the piston ring body (1) is fixedly connected with a first annular bump (2), and the bottom end of the piston ring body (1) is fixedly connected with a second annular bump (5).

4. A highly gas-tight engine piston ring according to claim 3, characterized in that: the inner wall of the second annular bump (5) is attached to the outer wall of the first annular bump (2).