A piston ring assembly

Abstract

The utility model discloses a piston ring assembly, including the casing, be provided with the piston ring in the casing, the upper end inside sealing block of casing is installed, the lower end of sealing block is located the upper portion of piston ring, the lower end of casing is located in frock, and the side wall of casing has the camber. The utility model has the beneficial effects that: through setting camber on the side wall of casing, the sealing block of casing upper end will extrude piston ring and move down, thereby guiding piston ring and entering the casing stably and compressing, and then replaced the traditional knock method, makes the stress even distribution, guarantees the leakproofness.

Description

Technical Field

[0001] This utility model relates to the field of piston ring technology, and in particular to a piston ring assembly. Background Technology

[0002] Modern piston rings are made of thin and highly elastic materials. During manual installation, uneven force can easily lead to permanent deformation or even breakage, affecting the sealing performance. Furthermore, multiple piston rings need to be precisely aligned with the ring grooves, but the traditional hammering method can easily cause local jamming of the piston rings, resulting in excessive or misaligned gaps between the ring and the bottom of the groove, making it difficult to ensure uniform circumferential distribution and easily causing air leakage. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a piston ring assembly.

[0004] The purpose of this utility model is achieved through the following technical solution: a piston ring assembly, including a housing, a piston ring disposed inside the housing, a sealing block installed inside the upper end of the housing, the lower end of the sealing block located above the piston ring, the lower end of the housing located inside the tooling, and the side wall of the housing having an arc.

[0005] Preferably, the housing includes an upper shell and a lower shell, the upper shell is obliquely mounted on the upper end of the lower shell, the outer side wall of the lower shell is connected to the inner side wall of the tooling, and the outer side wall of the sealing block is connected to the inner side wall of the upper shell.

[0006] Preferably, the angle between the central axis of the shell and the extension line of the lower surface of the upper shell is 3~5°.

[0007] Preferably, the inner wall of the upper shell is provided with a threaded section a, and the outer wall of the sealing block is provided with a threaded section b corresponding to the threaded section a.

[0008] Preferably, the axis at the lower end of the housing is aligned with the axis of the tooling.

[0009] The present invention has the following advantages: By setting an arc on the side wall of the housing, the sealing block at the upper end of the housing will squeeze the piston ring to move downward, thereby guiding the piston ring to be smoothly compressed into the housing, thus replacing the traditional knocking method, making the force evenly distributed and ensuring the sealing performance. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the external structure of the piston ring assembly;

[0011] Figure 2 This is a cross-sectional structural diagram of the piston ring assembly;

[0012] In the figure, 1-sealing block, 2-shell, 3-upper shell, 4-lower shell, 5-tooling, 6-piston ring, 7-threaded section a. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0016] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In this embodiment, as Figure 1 and Figure 2 As shown, a piston ring assembly includes a housing 2, within which a piston ring 6 is disposed. A sealing block 1 is installed inside the upper end of the housing 2, with the lower end of the sealing block 1 located above the piston ring 6. The lower end of the housing 2 is located within a tooling 5, and the sidewall of the housing 2 has an arc shape. By providing an arc shape on the sidewall of the housing 2, the sealing block 1 at the upper end of the housing 2 will compress the piston ring 6 downwards, thereby guiding the piston ring 6 to be smoothly compressed into the housing 2. This replaces the traditional hammering method, ensuring uniform force distribution and guaranteeing sealing performance.

[0020] Furthermore, the housing 2 includes an upper housing 3 and a lower housing 4. The upper housing 3 is obliquely mounted on the upper end of the lower housing 4. The outer side wall of the lower housing 4 is connected to the inner side wall of the tooling 5, and the outer side wall of the sealing block 1 is connected to the inner side wall of the upper housing 3. Even further, the angle between the central axis of the housing 2 and the extension line of the lower surface of the upper housing 3 is 3~5°.

[0021] In this embodiment, a threaded section a7 is provided on the inner wall of the upper shell 3, and a threaded section b corresponding to the threaded section a7 is provided on the outer wall of the sealing block 1. Specifically, since the upper shell 3 and the sealing block 1 are connected by a threaded transmission, the operator first puts the piston ring 6 into the housing 2, and then threadedly installs the sealing block 1 on the upper end of the housing 2. As the sealing block 1 moves downward, it pushes the piston ring 6 downward. Since the angle between the central axis of the housing 2 and the extension line of the lower surface of the upper shell 3 is 3~5°, that is, the upper shell 3 forms a conical inlet, the piston ring 6 can be guided to be smoothly compressed into the housing 2, thereby replacing the traditional knocking method, making the force evenly distributed, and ensuring the sealing performance.

[0022] In this embodiment, the axis at the lower end of the housing 2 is aligned with the axis of the tooling 5.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A piston ring assembly, characterized in that: Includes a housing (2), a piston ring (6) is provided inside the housing (2), a sealing block (1) is installed inside the upper end of the housing (2), the lower end of the sealing block (1) is located above the piston ring (6), the lower end of the housing (2) is located inside the tooling (5), and the side wall of the housing (2) has an arc.

2. The piston ring assembly according to claim 1, characterized in that: The housing (2) includes an upper shell (3) and a lower shell (4). The upper shell (3) is obliquely installed on the upper end of the lower shell (4). The outer side wall of the lower shell (4) is connected to the inner side wall of the tooling (5). The outer side wall of the sealing block (1) is connected to the inner side wall of the upper shell (3).

3. The piston ring assembly according to claim 2, characterized in that: The angle between the central axis of the shell (2) and the extension line of the lower surface of the upper shell (3) is 3~5°.

4. The piston ring assembly according to claim 3, characterized in that: The inner wall of the upper shell (3) is provided with a threaded section a (7), and the outer wall of the sealing block (1) is provided with a threaded section b corresponding to the threaded section a (7).

5. The piston ring assembly according to claim 4, characterized in that: The axis at the lower end of the housing (2) is aligned with the axis of the tooling (5).

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