CN216691277U

CN216691277U - Anti-crack motorcycle piston with good sealing performance

Info

Publication number: CN216691277U
Application number: CN202123258800.8U
Authority: CN
Inventors: 马元红
Original assignee: Zhengrui Auto Parts Co ltd
Current assignee: Zhengrui Auto Parts Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-06-07
Anticipated expiration: 2031-12-23

Abstract

The utility model relates to the technical field of motorcycle accessories, in particular to a motorcycle piston with good crack resistance and sealing performance, which comprises a piston body, wherein a plurality of groups of sealing rings are arranged above the outer surface of the piston body, a plurality of clamping pins are in through clamping connection between the plurality of groups of sealing rings and the piston body, a protective cover is in clamping connection with the top of the outer surface of the piston body, and a wear-resistant coating and an oxidation resistant layer are arranged on the top surface of the protective cover. The utility model has the advantages that: the piston body has the advantages that the plurality of clamping grooves are formed in one side of the outer portion of the piston body, the plurality of clamping holes are formed in the inner surfaces of the plurality of clamping grooves, the sealing rings are arranged in the plurality of clamping grooves, the shapes of the plurality of sealing rings are semi-circular, the clamping holes are formed in the outer portions of the plurality of sealing rings, the clamping pins are clamped in the clamping holes, one end of the outer portion of each clamping pin is concealed in the inner portion of each sealing ring, one end of the inner side of each clamping pin exceeds the inner surface of the piston body, and convenience is brought to a user to detach and replace the sealing rings.

Description

Anti-crack motorcycle piston with good sealing performance

Technical Field

The utility model relates to the technical field of motorcycle accessories, in particular to a motorcycle piston with good crack resistance and sealing performance.

Background

The piston is a reciprocating member in the cylinder block of the engine. The basic structure of the piston can be divided into a top part, a head part and a skirt part, the top part of the piston is the main part forming a combustion chamber, the shape of the top part of the piston is related to the selected combustion chamber form, and the gasoline engine mostly adopts a flat-top piston, so that the gasoline engine has the advantage of small heat absorption area; the top of the piston of a diesel engine often has various pits, the specific shape, position and size of which must be adapted to the requirements of the mixture formation and combustion of the diesel engine.

Be provided with a plurality of piston rings in the outside of piston, after long-time motion, the piston ring can cause wearing and tearing, influences the leakproofness between piston and the cylinder body, and current piston ring is not convenient for dismantle the change in practical application.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, provides the motorcycle piston with good crack resistance and sealing performance, and effectively overcomes the defects in the prior art.

The purpose of the utility model is realized by the following technical scheme: the motorcycle piston with the good anti-cracking and sealing performance comprises a piston body, wherein a plurality of groups of sealing rings are arranged above the outer surface of the piston body, a plurality of clamping pins are connected between the plurality of groups of sealing rings and the piston body in a penetrating and clamping mode, a protective cover is connected to the top of the outer surface of the piston body in a clamping mode, and a wear-resistant coating and an anti-oxidation layer are arranged on the top surface of the protective cover.

Optionally, a plurality of clamping grooves are formed in one side of the outer portion of the piston body, and a plurality of groups of sealing rings are arranged in the plurality of clamping grooves.

Optionally, the plurality of groups of sealing rings are semicircular, and the plurality of groups of sealing rings form a circular ring in a pairwise surrounding manner.

Optionally, a plurality of card holes have all been seted up to a plurality of internal surfaces that clamp the groove, and a plurality of blocks of hole have also been seted up to the multiunit the surface of sealing ring, the multiunit the inside in card hole all the joint be the bayonet lock, the user of being convenient for dismantles the change to the sealing ring.

Optionally, one end of the outer side of each of the plurality of bayonet pins is concealed in the sealing ring, and one end of the inner side of each of the plurality of bayonet pins exceeds the inner surface of the piston body.

Optionally, the edge of the top surface of the piston body is concave inwards to form a groove, and the protective cover is clamped outside the groove and can protect the head of the piston body, so that the risk of fragmentation is reduced.

Optionally, the top surface of the piston body is provided with a mounting hole, the middle part of the top surface of the protective cover is rotatably connected with a connecting bolt, and the connecting bolt is in threaded connection with the mounting hole.

Optionally, the oxidation resistant layer is disposed on an exterior of the wear resistant coating.

The utility model has the following advantages:

1. this anti motorcycle piston that split leakproofness is good, a plurality of grooves that clamp have been seted up in piston body outside one side, a plurality of card holes have all been seted up at a plurality of internal surfaces that clamp the groove, the inside in a plurality of grooves that clamp is provided with the sealing ring, the shape of a plurality of sealing rings is semi-circular, the card hole has all been seted up in the outside of a plurality of sealing rings, inside joint in card hole has the bayonet lock, the outside one end of bayonet lock is concealed in the inside of sealing ring, the inboard one end of bayonet lock surpasss the internal surface of piston body, convenient to use personnel dismantle the change to the sealing ring.

2. This motorcycle piston that anti leakproofness is good, edge at piston body top surface is seted up flutedly, the mounting hole has been seted up at the top surface of piston body, outside joint at the recess has the protection casing, middle part at the protection casing top surface is rotated and is connected with the connecting bolt, connecting bolt and mounting hole threaded connection, can protect the head of piston body, reduce and take place cracked risk, and simultaneously, top surface at the protection casing is provided with wear-resistant coating, top surface at wear-resistant coating is provided with the antioxidation layer, to a certain extent, the life of protection casing has been increased, satisfy the needs of in-service use.

Drawings

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

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

FIG. 3 is a schematic structural view of a piston body according to the present invention;

FIG. 4 is a schematic view of the internal structure of the piston body according to the present invention;

FIG. 5 is a schematic view of the structure of the shield of the present invention;

fig. 6 is a schematic sectional view of the shield according to the present invention.

In the figure: 1-a piston body, 2-a sealing ring, 3-a protective cover, 4-a connecting bolt, 5-a bayonet lock, 6-a wear-resistant coating, 7-an anti-oxidation layer, 8-a groove, 9-a mounting hole, 10-a clamping groove and 11-a clamping hole.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, but the scope of the utility model is not limited to the following.

The first embodiment is as follows:

as shown in fig. 1 to 6, the motorcycle piston with good crack resistance and sealing performance comprises a piston body 1, a plurality of groups of sealing rings 2 are arranged above the outer surface of the piston body 1, a plurality of clamping pins 5 penetrate through and are clamped between the groups of sealing rings 2 and the piston body 1, a protective cover 3 is clamped at the top of the outer surface of the piston body 1, and a wear-resistant coating 6 and an oxidation-resistant layer 7 are arranged on the top surface of the protective cover 3.

As an optional technical scheme of the utility model, the size of the sealing ring 2 is ensured to be matched with that of the clamping groove 10, so that a gap between the sealing ring 2 and the clamping groove 10 is small, and the aim of good sealing performance between the piston and the cylinder body is fulfilled.

The shape of the plurality of groups of sealing rings 2 is semicircular, and the plurality of groups of sealing rings 2 are enclosed into a ring shape.

The inner surfaces of the clamping grooves 10 are provided with a plurality of clamping holes 11, the outer surfaces of the plurality of groups of sealing rings 2 are also provided with a plurality of clamping holes 11, and the clamping pins 5 are clamped in the plurality of groups of clamping holes 11.

One end of the outer side of each bayonet 5 is concealed in the sealing ring 2, and one end of the inner side of each bayonet 5 exceeds the inner surface of the piston body 1.

The edge of the top surface of the piston body 1 is internally concave with a groove 8, the outside of the groove 8 is clamped with the protective cover 3, and the protective cover 3 is clamped outside the groove 8 when the protective cover 3 is installed, so that the protective cover 3 can clamp the piston body 1.

Mounting hole 9 has been seted up to the top surface of piston body 1, and the middle part of protection casing 3 top surface is rotated and is connected with connecting bolt 4, connecting bolt 4 and mounting hole 9 threaded connection.

An anti-oxidation layer 7 is arranged on the outside of the wear-resistant coating 6.

Example two:

the difference between this embodiment and the first embodiment is that the wear-resistant coating 6 and the oxidation-resistant layer 7 are replaced by a corrosion-resistant layer and a high-temperature-resistant layer, wherein the corrosion-resistant layer is disposed outside, which ensures a high service life of the protective cover 3.

The working process of the utility model is as follows: when a user uses the piston, one side of the outer part of the piston body 1 is provided with a plurality of clamping grooves 10, the inner surfaces of the plurality of clamping grooves 10 are all provided with a plurality of clamping holes 11, the inner parts of the plurality of clamping grooves 10 are provided with the sealing rings 2, the shapes of the plurality of sealing rings 2 are semicircular, the outer parts of the plurality of sealing rings 2 are all provided with the clamping holes 11, the inner parts of the clamping holes 11 are clamped with the clamping pins 5, one ends of the outer parts of the clamping pins 5 are concealed in the sealing rings 2, one ends of the inner sides of the clamping pins 5 exceed the inner surface of the piston body 1, a user can conveniently detach and replace the sealing rings 2 by arranging the grooves 8 at the edge of the top surface of the piston body 1, the top surface of the piston body 1 is provided with the mounting holes 9, the protective cover 3 is clamped at the outer parts of the grooves 8, the middle part of the top surface of the protective cover 3 is rotatably connected with the connecting bolt 4, the connecting bolt 4 is in threaded connection with the mounting holes 9, and can protect the head part of the piston body 1, the cracked risk of taking place is reduced, simultaneously, is provided with wear-resistant coating 6 at the top surface of protection casing 3, is provided with oxidation resisting layer 7 at wear-resistant coating 6's top surface, to a certain extent, has increased protection casing 3's life, satisfies the needs of in-service use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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. A motorcycle piston with good crack resistance and sealing performance is characterized in that: including piston body (1), the top of piston body (1) surface is provided with multiunit sealing ring (2), multiunit sealing ring (2) with it has a plurality of bayonet locks (5) to run through the joint between piston body (1), the top joint of piston body (1) surface has protection casing (3), the top surface of protection casing (3) is provided with wear-resistant coating (6) and oxidation resisting layer (7).

2. A motorcycle piston with good crack-resistant and sealing properties according to claim 1, characterized in that: a plurality of clamping grooves (10) are formed in one side of the outer portion of the piston body (1), and a plurality of groups of sealing rings (2) are arranged in the clamping grooves (10).

3. A motorcycle piston with good crack-resistant and sealing properties according to claim 1, characterized in that: the shape of the plurality of groups of sealing rings (2) is semicircular, and the plurality of groups of sealing rings (2) are combined into a circular ring shape in a pairwise surrounding manner.

4. A motorcycle piston with good crack-resistant and sealing properties as claimed in claim 2, wherein: the inner surfaces of the clamping grooves (10) are provided with a plurality of clamping holes (11), the outer surfaces of the sealing rings (2) are provided with a plurality of clamping holes (11), and the clamping pins (5) are clamped in the clamping holes (11).

5. A motorcycle piston with good crack-resistant and sealing properties as claimed in claim 1, wherein: one end of the outer side of each of the clamping pins (5) is concealed in the sealing ring (2), and one end of the inner side of each of the clamping pins (5) exceeds the inner surface of the piston body (1).

6. A motorcycle piston with good crack-resistant and sealing properties according to claim 1, characterized in that: the edge indent of piston body (1) top surface is formed with recess (8), the outside joint of recess (8) is protection casing (3).

7. A motorcycle piston with good crack-resistant and sealing properties according to claim 1, characterized in that: mounting hole (9) have been seted up to the top surface of piston body (1), the middle part of protection casing (3) top surface is rotated and is connected with connecting bolt (4), connecting bolt (4) with mounting hole (9) threaded connection.

8. A motorcycle piston with good crack-resistant and sealing properties according to claim 1, characterized in that: the anti-oxidation layer (7) is arranged outside the wear-resistant coating (6).