Gasoline engine cylinder body piston wear-resistant structure

Abstract

The utility model discloses a gasoline engine cylinder body piston wear-resisting structure which comprises a cylinder body, the cylinder body is provided with a piston rod, the surface of the cylinder body is fixedly connected with two installation frames, the two installation frames are distributed oppositely in the left-right direction, and the upper end and the lower end of the right surface of the installation frame located on the right side are fixedly connected with telescopic rods. A universal joint is fixedly connected between the right end of the telescopic rod and the right end of the piston rod, a protective sleeve is fixedly connected to the penetrating position of the piston rod on the right surface of the machine cylinder body, two grooves are formed in the inner wall of the protective sleeve, the two grooves are oppositely distributed left and right, the protective sleeve is divided into a sealing area and an impurity collecting area through the two grooves, and the sealing area is located in the machine cylinder body. A sponge gasket is arranged on the surface of the piston rod, and the left end and the right end of the sponge gasket make contact with the protective sleeve and the universal joint. Through the device, the stability of the cylinder piston is improved, and the influence of impurities and collision on the piston is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wear-resistant structures of cylinder blocks and pistons, and particularly relates to a wear-resistant structure of a gasoline engine cylinder block and piston. Background Technique

[0002] When a gasoline engine cylinder block works, it needs to use air pressure to control the movement of the piston. However, during the movement of the piston, there are potential hazards such as impurities and collisions that affect the service life of the piston, resulting in a reduction in the practicality of the piston. The "high wear-resistant piston ring" disclosed on the Chinese Patent Network, with the application number "200820002172.2", improves the wear resistance of the piston through a ceramic film. However, during the repeated movement of the piston, there is a potential hazard that the piston is damaged due to collisions, resulting in a reduction in the service life of the gasoline engine cylinder block piston. Content of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a wear-resistant structure of a gasoline engine cylinder block and piston, which restricts the movement range of the piston rod, reduces the situation of collision between the piston rod and the piston, reduces the influence of impurities and collisions on the gasoline engine cylinder block piston, thereby improving the wear resistance of the piston and extending the service life of the gasoline engine cylinder piston and piston rod.

[0004] The utility model also provides a wear-resistant structure of a gasoline engine cylinder block and piston as described above, including: a cylinder block body, the cylinder block body is provided with a piston rod, two mounting frames are fixedly connected to the surface of the cylinder block body, the two mounting frames are distributed relatively left and right, telescopic rods are fixedly connected to the upper and lower ends of the right surface of the mounting frame on the right side, a universal joint is fixedly connected between the right end of the telescopic rod and the right end of the piston rod, the left surface of the universal joint is fixedly connected to the right end of the piston rod, a protective sleeve is fixedly connected to the penetration part of the piston rod on the right surface of the cylinder block body, two grooves are arranged on the inner wall of the protective sleeve, the two grooves are distributed relatively left and right, and the two grooves divide the protective sleeve into a sealing area and a debris collection area. The sealing area is located inside the cylinder block body, a sponge gasket is arranged on the surface of the piston rod, and when the gasoline engine cylinder is not in use, the left and right ends of the sponge gasket are in contact with the protective sleeve and the universal joint.

[0005] According to the wear-resistant structure of a gasoline engine cylinder block and piston of the utility model, a plurality of exhaust holes are arranged on the side surface of the protective sleeve, and the exhaust holes are mutually communicated with the groove at the right end. It is convenient to discharge the excess gas in the groove.

[0006] According to the wear-resistant structure of a gasoline engine cylinder block and piston of the utility model, a limiting shell is arranged on the surface of the piston rod, the sponge gasket is located inside the limiting shell, and the limiting shell is of an opening and closing structure. It improves the stability of the sponge gasket.

[0007] A wear-resistant structure for a gasoline engine cylinder block piston according to the present utility model, an installation plate is fixedly connected to the surface of the telescopic rod at the upper end, and a connecting rod is fixedly connected between the lower surface of the installation plate and the limiting shell. The stability of the limiting shell is improved.

[0008] A wear-resistant structure for a gasoline engine cylinder block piston according to the present utility model, the installation plate and the limiting shell are both made of rubber materials. To avoid the installation plate and the limiting shell from affecting the movement effect of the piston rod.

[0009] A wear-resistant structure for a gasoline engine cylinder block piston according to the present utility model, the length of the telescopic rod in the fully extended state and the length in the fully contracted state are respectively less than the length of the piston rod in the fully extended state and the length in the fully retracted state. To ensure that the telescopic rod restricts the movement range of the piston rod.

[0010] A wear-resistant structure for a gasoline engine cylinder block piston according to the present utility model, the two grooves form a lubricating oil leakage prevention cavity and an impurity isolation cavity. Facilitate the inspection of the grooves.

[0011] Beneficial effects

[0012] 1. Compared with the prior art, this wear-resistant structure for a gasoline engine cylinder block piston restricts the movement range of the piston rod through the telescopic rod, universal joint, protective sleeve, installation plate, limiting shell, and sponge gasket, reduces the collision between the piston rod and the piston, reduces the impact of impurities and collisions on the gasoline engine cylinder block piston, and prolongs the service life of the gasoline engine cylinder piston and piston rod. Description of the drawings

[0013] The following further illustrates the present utility model in conjunction with the drawings and embodiments;

[0014] Figure 1 It is the left view structure diagram of a wear-resistant structure for a gasoline engine cylinder block piston of the present utility model;

[0015] Figure 2 It is the right view structure diagram of a wear-resistant structure for a gasoline engine cylinder block piston of the present utility model;

[0016] Figure 3 It is the cross-sectional view structure diagram of a wear-resistant structure for a gasoline engine cylinder block piston of the present utility model;

[0017] Figure 4 It is the Figure 3 enlarged structure diagram at B of a wear-resistant structure for a gasoline engine cylinder block piston of the present utility model.

[0018] Legend description:

[0019] 1. Cylinder block body; 2. Piston rod; 3. Mounting frame; 4. Telescopic rod; 5. Mounting plate; 6. Universal joint; 7. Connecting rod; 8. Protective sleeve; 9. Exhaust hole; 10. Sponge gasket; 11. Limit shell; 12. Groove; 13. Sealing area; 14. Impurity collection area. Detailed implementation manners

[0020] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0021] Referring to Figures 1-4 , an anti-wear structure of a piston of a gasoline engine cylinder block according to an embodiment of the present utility model includes: a cylinder block body 1, a piston rod 2 is arranged on the cylinder block body 1, and two mounting frames 3 are fixedly connected to the surface of the cylinder block body 1. The two mounting frames 3 are distributed relatively left and right. At the upper and lower ends of the right surface of the right mounting frame 3, telescopic rods 4 are fixedly connected. The length of the telescopic rod 4 in the fully extended state and the length in the fully retracted state are respectively less than the length of the piston rod 2 in the fully extended state and the length in the fully retracted state. A universal joint 6 is fixedly connected between the right end of the telescopic rod 4 and the right end of the piston rod 2. The telescopic rod 4 restricts the movement range of the piston rod 2, and transfers the impact caused by the collision of the piston rod 2 to the telescopic rod 4 and the universal joint 6, thereby avoiding the collision from affecting the sealing effect of the piston rod 2.

[0022] A protective sleeve 8 is fixedly connected to the passing position of the piston rod 2 on the right surface of the cylinder block body 1. Two grooves 12 are arranged on the inner wall of the protective sleeve 8. The two grooves 12 are distributed relatively left and right. The two grooves 12 divide the protective sleeve 8 into a sealing area 13 and an impurity collection area 14. The two grooves 12 form a lubricating oil leakage prevention cavity and an impurity isolation cavity. The protective sleeve 8 separates the sealing and impurities by using the grooves 12 to ensure sufficient sealing of the protective sleeve 8 and reduce the entry of impurities into the interior of the cylinder block body 1. A plurality of exhaust holes 9 are arranged on the side surface of the protective sleeve 8. The exhaust holes 9 communicate with the groove 12 at the right end. The sealing area 13 is located inside the cylinder block body 1, and the exhaust holes 9 prevent the air pressure inside the groove 12 from being too high.

[0023] A sponge washer 10 is provided on the surface of the piston rod 2. When the gasoline engine cylinder is not in use, the left and right ends of the sponge washer 10 are in contact with the protective sleeve 8 and the universal joint. The sponge washer 10 and the protective sleeve 8 cooperate with each other to further reduce the impact of collision. A limit shell 11 is provided on the surface of the piston rod 2. The sponge washer 10 is located inside the limit shell 11. The limit shell 11 is an opening and closing structure. The limit shell 11 ensures that the divided sponge washer 10 has sufficient stability. A mounting plate 5 is fixedly connected to the surface of a set of telescopic rods 4 at the upper end. A connecting rod 7 is fixedly connected between the lower surface of the mounting plate 5 and the limit shell 11. Both the mounting plate 5 and the limit shell 11 are made of rubber materials. The mounting plate 5 and the connecting rod 7 improve the stability when the limit shell 11 and the sponge washer 10 act.

[0024] Working principle: When the piston rod 2 moves, when the piston rod 2 is pushed out and when the piston rod 2 is retracted, it is affected by the length of the telescopic rod 4. In both motion states, the collision stress is directly transferred to the telescopic rod 4 and the universal joint 6, thereby reducing the impact on the piston rod 2 and improving the wear resistance of the piston. The protrusion between the left end of the protective sleeve 8 and the two grooves 12 can scrape off the impurities attached to the surface of the piston rod 2, reducing the situation of impurities entering the cylinder block body 1.

[0025] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the purpose of the present invention.

Claims

1. A wear-resistant structure for the piston of a gasoline engine cylinder block, characterized in that, Including: A cylinder body (1), the cylinder body (1) is provided with a piston rod (2), the surface of the cylinder body (1) is fixedly connected with two mounting frames (3), the two mounting frames (3) are distributed relatively left and right, and both the upper and lower ends of the right surface of the mounting frame (3) on the right side are fixedly connected with telescopic rods (4), and a universal joint (6) is fixedly connected between the right ends of the telescopic rods (4) and the right end of the piston rod (2); A protective sleeve (8) is fixedly connected at the passing position of the piston rod (2) on the right surface of the cylinder body (1), two grooves (12) are arranged on the inner wall of the protective sleeve (8), the two grooves (12) are distributed relatively left and right, and the two grooves (12) divide the protective sleeve (8) into a sealing area (13) and a debris collection area (14), the sealing area (13) is located inside the cylinder body (1), a sponge gasket (10) is arranged on the surface of the piston rod (2), and when the gasoline cylinder is not in use, the left and right ends of the sponge gasket (10) are in contact with the protective sleeve (8) and the universal joint (6).

2. The wear-resistant structure of a gasoline engine cylinder block piston according to claim 1, characterized in that, A plurality of exhaust holes (9) are arranged on the side surface of the protective sleeve (8), and the exhaust holes (9) communicate with the groove (12) at the right end.

3. A wear-resistant structure for a gasoline engine cylinder block piston according to claim 1, characterized in that, A limiting shell (11) is arranged on the surface of the piston rod (2), the sponge gasket (10) is located inside the limiting shell (11), and the limiting shell (11) is of an opening and closing structure.

4. A wear-resistant structure of a gasoline engine cylinder block piston according to claim 3, characterized in that A mounting plate (5) is fixedly connected to the surface of the telescopic rod (4) at the upper end, and a connecting rod (7) is fixedly connected between the lower surface of the mounting plate (5) and the limiting shell (11).

5. A wear-resistant structure of a gasoline engine cylinder block piston according to claim 4, characterized in that, Both the mounting plate (5) and the limiting shell (11) are made of rubber material.

6. A wear-resistant structure of a gasoline engine cylinder block piston according to claim 1, characterized in that, The length of the telescopic rod (4) in the fully extended state and the length in the fully retracted state are respectively less than the length of the piston rod (2) in the fully extended state and the length in the fully retracted state.

7. A wear-resistant structure of a gasoline engine cylinder block piston according to claim 1, characterized in that, The two grooves (12) form a lubricating oil leakage prevention cavity and a debris isolation cavity.

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