Multi-stage piston ring sealing structure

Abstract

The utility model discloses a multi-stage piston ring sealing structure, which relates to the technical field of pistons and comprises a piston, a mounting part and a sealing mechanism arranged on the mounting part and used for sealing. The fixing mechanism is arranged on the piston and the mounting part and used for fixing the mounting part, and the fixing mechanism comprises a plurality of fixing grooves which are formed in the piston and used for fixing parts; the rotating shaft is arranged in the mounting piece and is rotationally connected with the mounting piece; the connecting piece is arranged on the rotating shaft and is fixedly connected with the rotating shaft; and the number of the positioning pieces is multiple, and the multiple positioning pieces are arranged on the connecting piece and fixedly connected with the connecting piece. According to the device, by arranging the fixing mechanism, the sealing mechanism can be fixed to the piston, the sealing mechanism can be stably fixed, parts in the sealing mechanism can be conveniently replaced, and the device is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to piston technical field especially relates to a multistage piston ring sealing structure. BACKGROUND

[0002] The multistage piston ring is a group of piston rings with different functions and structures installed on the piston. It is generally composed of gas rings and oil rings. The gas ring usually has 2 to 3 channels, and its main function is to seal the high-temperature and high-pressure gas in the cylinder to prevent it from leaking into the crankcase, and at the same time, it can also transfer the heat from the piston head to the cylinder wall. The oil ring is located below the gas ring and is usually composed of 1 to 2 pieces. Its function is to scrape off the excess oil on the cylinder wall and distribute the oil evenly on the cylinder wall to reduce wear and friction. Through this division of labor and cooperation, the multistage piston ring effectively improves the performance and efficiency of the engine, reduces oil consumption and air leakage, and ensures the normal operation of the engine. The current piston ring is directly installed on the piston body during installation. When replacing the piston ring, it is not convenient to replace, so it needs to be improved. SUMMARY

[0003] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a multistage piston ring sealing structure, which aims to solve the technical problem of the above-mentioned piston ring replacement.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A multistage piston ring sealing structure, comprising a piston and a mounting piece, further comprising:

[0006] A sealing mechanism is provided on the mounting piece for sealing work.

[0007] A fixing mechanism is provided on the piston and the mounting piece for fixing the mounting piece, and the fixing mechanism comprises:

[0008] A plurality of fixing grooves are provided on the piston for component fixation.

[0009] A rotating shaft is provided in the mounting piece and is rotatably connected to the mounting piece.

[0010] A connecting piece is provided on the rotating shaft and is fixedly connected to the rotating shaft.

[0011] A plurality of positioning pieces are provided on the connecting piece and are fixedly connected to the connecting piece.

[0012] Preferably, the fixing mechanism further comprises:

[0013] A connecting part is provided in the rotating shaft for component connection.

[0014] A rotating part is arranged on the connecting part and used for rotating work.

[0015] Preferably, the connecting part comprises:

[0016] A connecting groove is arranged in the rotating shaft and used for connecting parts;

[0017] A spring is arranged in the connecting groove and used for fixing parts;

[0018] A fixing part is arranged on the spring and fixedly connected with the spring.

[0019] Preferably, the rotating part comprises:

[0020] A connecting column is arranged on the fixing part and fixedly connected with the fixing part;

[0021] A rotating knob is arranged on the connecting column and fixedly connected with the connecting column;

[0022] A sealing cover is arranged on the mounting part and used for sealing work.

[0023] Preferably, the sealing mechanism comprises:

[0024] A plurality of mounting grooves are arranged on the mounting part and used for mounting parts;

[0025] A sealing part is arranged in the mounting groove and used for sealing work.

[0026] Preferably, the sealing part comprises:

[0027] A first gas ring is arranged in the mounting groove and used for sealing work;

[0028] A second gas ring is arranged in the mounting groove and used for sealing work.

[0029] Preferably, the sealing part further comprises:

[0030] An upper wiper is arranged in the mounting groove and used for scraping oil;

[0031] A spring is arranged in the mounting groove and fixed in the mounting groove;

[0032] A lower wiper is arranged in the mounting groove and fixed in the mounting groove.

[0033] In summary, due to the adoption of the above technical scheme, the present application has the following beneficial effects:

[0034] 1. This device is equipped with a sealing mechanism, which can seal the device during operation to prevent air leakage from the piston. At the same time, the sealing mechanism can also scrape off and spread excess oil in the oil cylinder evenly, ensuring stable operation of the device.

[0035] 2. This device, by setting a fixing mechanism, can fix the sealing mechanism on the piston and provide stable sealing, which facilitates the replacement of components in the sealing mechanism and makes the device easy to use. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 A three-dimensional structural schematic diagram of a multi-stage piston ring sealing structure is shown.

[0038] Figure 2 A partial cross-sectional schematic diagram of a multi-stage piston ring sealing structure is shown.

[0039] Figure 3 An exploded three-dimensional structural diagram of a partial sealing mechanism of a multi-stage piston ring sealing structure is shown.

[0040] Figure 4 A three-dimensional structural diagram of a partial fixing mechanism of a multi-stage piston ring sealing structure is shown.

[0041] Figure 5 An exploded three-dimensional structural diagram of a portion of the fixing mechanism of a multi-stage piston ring sealing structure is shown.

[0042] Legend:

[0043] 1. Piston; 2. Mounting component; 3. Lower scraper; 4. Fixing groove; 5. Rotating shaft; 6. Connecting component; 7. Positioning component; 8. Connecting groove; 9. Spring; 10. Fixing component; 11. Connecting column; 12. Rotating knob; 13. Sealing cover; 14. Mounting groove; 15. First air ring; 16. Second air ring; 17. Upper scraper; 18. Liner spring. Detailed Implementation

[0044] With reference to the drawings and the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0045] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0046] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as "disposed on" another component, it can be directly disposed on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and the like used herein are for illustrative purposes only.

[0047] In addition, the terms "first", "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implying the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0048] Referring to Figures 1 to 5 Further description of the embodiment of the multi-stage piston ring sealing structure of the present application.

[0049] A multi-stage piston ring sealing structure, comprising a piston 1 and a mounting member 2, further comprising a sealing mechanism arranged on the mounting member 2 for sealing work; a fixing mechanism arranged on the piston 1 and the mounting member 2 for fixing the mounting member 2, the fixing mechanism comprising: a plurality of fixing grooves 4, and the plurality of fixing grooves 4 are arranged on the piston 1 for component fixing; a rotating shaft 5 arranged in the mounting member 2 and rotatably connected with the mounting member 2;

[0050] Connecting piece 6 is arranged on the rotating shaft 5 and fixedly connected with the rotating shaft 5; the positioning pieces 7 are arranged on the connecting piece 6 and fixedly connected with the connecting piece 6.

[0051] Reference Figure 1 And Figure 2 As a preferred embodiment, the fixing mechanism further comprises a connecting part arranged in the rotating shaft 5 for component connection, and a rotating part arranged on the connecting part for rotating work.

[0052] Reference Figure 5 As a preferred embodiment, the connecting part comprises a connecting groove 8 arranged in the rotating shaft 5 for component connection, a spring 9 arranged in the connecting groove 8 for component fixation, and a fixing piece 10 arranged on the spring 9 and fixedly connected with the spring 9.

[0053] Reference Figure 4 And Figure 5 As a preferred embodiment, the rotating part comprises a connecting column 11 arranged on the fixing piece 10 and fixedly connected with the fixing piece 10, a rotating knob 12 arranged on the connecting column 11 and fixedly connected with the connecting column 11, and a sealing cover 13 arranged on the mounting piece 2 for sealing work.

[0054] In this way, the fixing groove 4 is used for the positioning piece 7 to enter, and when the positioning piece 7 moves into the fixing groove 4, the positioning piece 7 can be fixed by the fixing groove 4, thereby completing the fixing work of the mounting piece 2; the fixing piece 10 can move and rotate in the connecting groove 8, and when the fixing piece 10 is at the bottom of the connecting groove 8, the fixing piece 10 will not drive the rotating shaft 5 to rotate when rotating, thereby preventing the positioning piece 7 from moving randomly; when the positioning piece 7 moves clockwise in the fixing groove 4, the positioning piece 7 can be fixed.

[0055] Reference Figure 2 And Figure 3 As a preferred embodiment, the sealing mechanism comprises a plurality of mounting grooves 14 arranged on the mounting piece 2 for component mounting, and a sealing part arranged in the mounting groove 14 for sealing work.

[0056] Reference Figure 3, as a preferred embodiment, the sealing part comprises: a first gas ring 15, provided in the mounting groove 14, for sealing work; a second gas ring 16, provided in the mounting groove 14, for sealing work; an upper wiper 17, provided in the mounting groove 14, for scraping oil; a spring 18, provided in the mounting groove 14, and fixed in the mounting groove 14; a lower wiper 3, provided in the mounting groove 14, and fixed in the mounting groove 14.

[0057] The device can be sealed by the sealing mechanism when the device is working, preventing air leakage of the piston 1 during work, and the sealing mechanism can also scrape and evenly apply the excess oil in the oil cylinder, ensuring stable operation of the device. The device can fix the sealing mechanism on the piston 1 and stably fix the sealing work by setting the fixing mechanism, which can facilitate the replacement of parts in the sealing mechanism and facilitate the use of the device.

[0058] Working principle: when the piston ring is replaced, the sealing cover 13 is first removed, the rotating knob 12 is manually rotated, the convex part on the fixing part 10 corresponds to the connecting groove 8, the spring 9 rebounds to move the fixing part 10 to the upper part of the connecting groove 8, then the rotating knob 12 is manually rotated counterclockwise, the rotating shaft 5 is rotated, the connecting part 6 is driven by the rotating shaft 5 to rotate the positioning part 7, the positioning part 7 moves in the connecting groove 8, moves to the outlet of the connecting groove 8, then the mounting part 2 can be removed from the piston 1 as a whole, and the first gas ring 15, the second gas ring 16, or the upper wiper 17 and the lower wiper 3 are replaced.

[0059] The above description of the embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-stage piston ring sealing arrangement comprising a piston (1) and a mounting member (2), characterized in that, Also include: Sealing mechanism, provided on the mounting (2), for sealing work; Fixing mechanism, provided on the piston (1) and mounting (2), for mounting (2) fixed, the fixing mechanism includes: Fixed groove (4) has a plurality of, and a plurality of fixed groove (4) is provided on the piston (1), for component fixed; Shaft (5), provided in the mounting (2), and with the mounting (2) rotation connection; Connecting piece (6), provided on the shaft (5), and with the shaft (5) fixed connection; Positioning piece (7) has a plurality of, and a plurality of positioning piece (7) is provided on the connecting piece (6), and with the connecting piece (6) fixed connection.

2. A multi-stage piston ring seal structure according to claim 1, wherein The fixing mechanism, further comprising: Connecting part, provided in the shaft (5), for component connection; Rotary part, provided on the connecting part, for rotation work.

3. A multi-stage piston ring seal arrangement according to claim 2, wherein, The connecting part includes: Connecting groove (8), provided in the shaft (5), for component connection; Spring (9), provided in the connecting groove (8), for component fixed; Fixed piece (10), provided on the spring (9), and with the spring (9) fixed connection.

4. A multi-stage piston ring seal arrangement according to claim 3, wherein, The rotary part includes: Connecting column (11), provided on the fixed piece (10), and with the fixed piece (10) fixed connection; Rotary knob (12), provided on the connecting column (11), and with the connecting column (11) fixed connection; Sealing cover (13), provided on the mounting (2), for sealing work.

5. A multi-stage piston ring seal arrangement according to claim 4, wherein, The sealing mechanism includes: Mounting groove (14) has a plurality of, and a plurality of mounting groove (14) is provided on the mounting (2), for component installation; Sealing part, provided in the mounting groove (14), for sealing work.

6. A multi-stage piston ring seal structure according to claim 5, wherein The sealing part includes: First gas ring (15), provided in the mounting groove (14), for sealing work; Second gas ring (16), provided in the mounting groove (14), for sealing work.

7. A multi-stage piston ring seal structure according to claim 6, wherein The sealing part, further comprising: Upper wiper (17), provided in the mounting groove (14), for oil scraping; Spring (18), provided in the mounting groove (14), and fixed in the mounting groove (14); Lower wiper (3), provided in the mounting groove (14), and fixed in the mounting groove (14).

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