CN220705816U

CN220705816U - Piston with piston ring limit structure

Info

Publication number: CN220705816U
Application number: CN202322313748.4U
Authority: CN
Inventors: 陈素; 任少康
Original assignee: Anhui Weitong Locomotive Parts Co ltd
Current assignee: Anhui Weitong Locomotive Parts Co ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-04-02
Anticipated expiration: 2033-08-28

Abstract

The utility model discloses a piston with a piston ring limiting structure, which comprises a piston body, wherein two piston ring grooves are formed in the surface of the piston body, piston rings are movably connected in the piston ring grooves, limiting mechanisms are arranged in the piston ring grooves, and the two limiting mechanisms are staggered in the front-back direction; the utility model relates to the technical field of pistons, and discloses a limiting mechanism, which comprises a connecting rod, wherein one end of the connecting rod is fixedly connected with the inner wall of a piston ring groove, the other end of the connecting rod is fixedly connected with an arc limiting frame, and an arc limiting plate is movably connected inside the arc limiting frame. This piston with piston ring limit structure, through stop gear's setting, can carry out spacing fixedly behind the piston ring chucking at the piston ring groove, avoid the unexpected rotation of piston ring after long-term use to cause the phenomenon that the opening is relative from top to bottom, avoid taking place too much gas blow-by, further improved the sealing performance of piston ring.

Description

Piston with piston ring limit structure

Technical Field

The utility model relates to the technical field of pistons, in particular to a piston with a piston ring limiting structure.

Background

Pistons are the reciprocating parts in the cylinder block of an automobile engine.

The piston ring is provided with a plurality of piston ring grooves, 1 piston ring is arranged in each groove, the fracture position of the piston ring is required to be staggered and adjusted during arrangement, so that the tightness of a cylinder is ensured, most pistons are of infinite structure at present, after long-term use, the piston ring is easy to rotate accidentally, the openings are opposite up and down, the phenomenon of pressure relief caused by poor sealing is caused, and the use effect of the piston is reduced.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a piston with a piston ring limiting structure, and solves the problems in the background art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: a piston with a piston ring limiting structure comprises a piston body, wherein piston ring grooves are formed in the surface of the piston body, two piston ring grooves are formed in the surface of the piston body, piston rings are movably connected to the inner parts of the piston ring grooves, limiting mechanisms are arranged in the inner parts of the piston ring grooves, and the two limiting mechanisms are arranged in a staggered mode in the front-back direction;

stop gear includes the connecting rod, the one end and the inner wall fixed connection of piston ring groove of connecting rod, the other end fixedly connected with arc limit frame of connecting rod, and the inside swing joint of arc limit frame has the arc limiting plate, the equal fixedly connected with buffer spring in both sides at the arc limiting plate back, and buffer spring's one end and the back fixed connection of the spacing frame inner wall of arc, the equal fixedly connected with spacing fixture block in the positive both sides of arc limiting plate, the outside of arc limiting frame is run through to one side of spacing fixture block, the positive middle part fixedly connected with depression bar of arc limiting plate, the one end of depression bar runs through the arc limiting frame and extends to the front of arc limiting frame.

Preferably, the inside of piston ring has been seted up the spacing groove with the spacing frame looks adaptation of arc, the draw-in groove with spacing fixture block looks adaptation is seted up to the inside of piston ring and lie in one side of spacing groove.

Preferably, the inner wall of the piston ring is fixedly connected with protrusions, and two protrusions are arranged.

Preferably, a groove corresponding to the protrusion is formed in the inner wall of the piston ring groove.

Preferably, a piston tip hole is formed in the surface of the piston body.

Advantageous effects

The utility model provides a piston with a piston ring limiting structure. Compared with the prior art, the method has the following beneficial effects:

(1) This piston with piston ring limit structure, through stop gear's setting, can carry out spacing fixedly behind the piston ring chucking at the piston ring groove, avoid the unexpected rotation of piston ring after long-term use to cause the phenomenon that the opening is relative from top to bottom, avoid taking place too much gas channeling, further improved the sealing performance of piston ring.

(2) The piston with the piston ring limiting structure can help the piston ring to be positioned rapidly through the arrangement of the protrusions and the grooves, and the position of the fracture of the subsequent piston ring can be fixed conveniently.

Drawings

FIG. 1 is a perspective view of the structure of the present utility model;

FIG. 2 is a rear elevational view of the structure of the present utility model;

FIG. 3 is a top view of the inner structure of the metal ring of FIG. 1 according to the present utility model;

fig. 4 is a schematic structural view of the limiting mechanism of the present utility model.

In the figure: 1. a piston body; 2. a piston ring groove; 3. piston rings; 4. a limiting mechanism; 41. a connecting rod; 42. an arc-shaped limit frame; 43. an arc limiting plate; 44. a buffer spring; 45. a limit clamping block; 46. a compression bar; 5. a piston tip bore; 6. a protrusion; 7. a groove; 8. a limit groove; 9. a clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the utility model provides a piston with a piston ring limiting structure, which comprises a piston body 1, wherein a piston ring groove 2 is formed in the surface of the piston body 1, two piston ring grooves 2 are arranged, a piston ring 3 is movably connected in the piston ring groove 2, a limiting mechanism 4 is arranged in the piston ring groove 2, and the two limiting mechanisms 4 are arranged in a staggered manner in the front-back direction;

the stop gear 4 includes connecting rod 41, the one end of connecting rod 41 and the inner wall fixed connection of piston ring groove 2, the other end fixedly connected with arc spacing frame 42 of connecting rod 41, and the inside swing joint of arc spacing frame 42 has arc limiting plate 43, the equal fixedly connected with buffer spring 44 in both sides at the arc limiting plate 43 back, and the equal fixedly connected with spacing fixture block 45 in the back of the one end and the arc spacing frame 42 inner wall of buffer spring 44, the positive both sides of arc limiting plate 43 all fixedly connected with limiting block 45, one side of spacing fixture block 45 runs through arc limiting frame 42 and extends to the outside of arc limiting frame 42, the positive middle part fixedly connected with depression bar 46 of arc limiting plate 43, the one end of depression bar 46 runs through arc limiting frame 42 and extends to the front of arc limiting frame 42.

Specifically, the inside of piston ring 3 has offered the spacing groove 8 with the spacing frame 42 looks adaptation of arc, the draw-in groove 9 with spacing fixture block 45 looks adaptation is offered to the inside of piston ring 3 and lie in one side of spacing groove 8.

Specifically, the inner wall of the piston ring 3 is fixedly connected with protrusions 6, and two protrusions 6 are arranged.

Specifically, the inner wall of the piston ring groove 2 is provided with a groove 7 corresponding to the protrusion 6.

Specifically, the surface of the piston body 1 is provided with a piston tip hole 5.

And all that is not described in detail in this specification is well known to those skilled in the art.

When the piston ring is used, a person approaches the piston ring 3 to the piston ring groove 2, at the moment, the bulge 6 on the piston ring 3 corresponds to the groove 7, the bulge 6 falls into the groove 7 for limiting, then the person presses the pressing rod 46, the arc limiting plate 43 is driven by the pressing rod 46 to squeeze in the direction close to the connecting rod 41, the limiting clamping block 45 moves to the inside of the arc limiting frame 42, the buffer spring 44 is compressed by pressure, at the moment, the fracture of the piston ring 3 is close to the arc limiting frame 42 until two sides of the arc limiting frame 42 are inserted into the limiting groove 8, at the moment, the pressing rod 46 is loosened again, the reaction force generated by the compression force release of the buffer spring 44 pushes the arc limiting plate 43 until the limiting clamping block 45 is inserted into the clamping groove 9, limiting fixation of the piston ring 3 is realized, the upper limiting mechanism 4 and the lower limiting mechanism 4 are staggered front and back, the fracture of the piston ring 3 can be prevented from being vertically opposite, and the use effect of the piston is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Piston with piston ring limit structure, including piston body (1), its characterized in that: the piston comprises a piston body (1), wherein a piston ring groove (2) is formed in the surface of the piston body (1), two piston ring grooves (2) are formed in the piston ring groove (2), a piston ring (3) is movably connected in the piston ring groove (2), a limiting mechanism (4) is arranged in the piston ring groove (2), and the two limiting mechanisms (4) are arranged in a staggered mode in the front-back direction;

stop gear (4) are including connecting rod (41), the one end of connecting rod (41) and the inner wall fixed connection of piston ring groove (2), the other end fixedly connected with arc spacing frame (42) of connecting rod (41), and the inside swing joint of arc spacing frame (42) has arc limiting plate (43), the equal fixedly connected with buffer spring (44) in both sides at the arc limiting plate (43) back, and the equal fixedly connected with in the back of the one end and the arc spacing frame (42) inner wall of buffer spring (44), the equal fixedly connected with spacing fixture block (45) in the positive both sides of arc limiting plate (43), the outside of arc spacing frame (42) is run through to one side of spacing fixture block (45), the positive middle part fixedly connected with depression bar (46) of arc limiting plate (43), the one end of depression bar (46) runs through arc spacing frame (42) and extends to the positive of arc spacing frame (42).

2. A piston with piston ring spacing structure as claimed in claim 1, characterized in that: the inside of piston ring (3) is offered and is had spacing groove (8) with arc spacing frame (42) looks adaptation, draw-in groove (9) with spacing fixture block (45) looks adaptation are offered to the inside of piston ring (3) and lie in one side of spacing groove (8).

3. A piston with piston ring spacing structure as claimed in claim 1, characterized in that: the inner wall of the piston ring (3) is fixedly connected with protrusions (6), and the protrusions (6) are two.

4. A piston having a piston ring spacing structure as claimed in claim 3, wherein: the inner wall of the piston ring groove (2) is provided with a groove (7) corresponding to the bulge (6).

5. A piston with piston ring spacing structure as claimed in claim 1, characterized in that: a piston tip hole (5) is formed in the surface of the piston body (1).