Piston sleeve for compressor

Abstract

The utility model relates to the technical field of compressors, and discloses a piston sleeve for a compressor, which is characterized in that an open ring groove matched with a sealing ring A for installation is formed between an insertion ring and a sleeve body; the surface of the sleeve body is provided with two concave ring grooves matched with the installation of the sealing rings B, and the bottom of the limiting ring is provided with an annular concave groove A matched with the installation of the sealing rings C; an annular concave groove B, an inner ring groove and an outer ring groove are formed in the mounting ring, a sealing ring D is mounted in the annular concave groove B, a sealing ring E is mounted in the inner ring groove, and a sealing ring F is mounted in the outer ring groove. The sealing ring A, the sealing ring B and the sealing ring C on the outer side of the sleeve body are used for improving the sealing performance of assembly of the sleeve body and a compressor main machine, the sealing ring D, the sealing ring E and the sealing ring F are used for improving the sealing performance of matched assembly of the sleeve body and an air cavity cover, gas leakage can be reduced through the multiple sealing rings, the efficient sealing effect is achieved, and the compression efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and particularly relates to a piston sleeve used for a compressor. Background Art

[0002] The piston sleeve in a compressor is a key component. It works closely with the piston, forming a sealed space with the sleeve. As the piston moves up and down, the size of this space changes, enabling the intake, compression, and discharge of gas. The sleeve provides a smooth running path for the piston, reducing friction and ensuring accurate movement. Through its structural design, the sleeve effectively reduces gas leakage during piston movement and improves compression efficiency.

[0003] In traditional technology, the piston sleeve installed on the compressor is only equipped with a sealing ring at the joint with the air cavity cover. This means that there is a lack of sufficient sealing measures at the leakage point where the piston sleeve is connected to the air compressor host, which may cause difficulties in assembly and maintenance work, may lead to reduced efficiency, and may even affect the stability and reliability of the compressor. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the utility model provides a piston sleeve for a compressor.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A piston sleeve for a compressor comprises a sleeve body, wherein the bottom end of the sleeve body is integrally formed with a plug ring for inserting into the compressor main body, the top end is integrally formed with a mounting ring, an open ring groove for fitting a sealing ring A is formed between the plug ring and the sleeve body; the surface of the sleeve body is provided with two recessed ring grooves for fitting a sealing ring B;

[0007] The outer side of the sleeve body is integrally formed with a limiting ring located below the mounting ring, and the bottom of the limiting ring is provided with an annular concave groove A for fitting with the sealing ring C;

[0008] The mounting ring is provided with an annular concave groove B and an inner ring groove and an outer ring groove located on both sides of the annular concave groove B. A sealing ring D is installed in the annular concave groove B, a sealing ring E is installed in the inner ring groove, and a sealing ring F is installed in the outer ring groove.

[0009] Sealing rings A, B, C, D, E, and F are made of high-temperature-resistant and wear-resistant rubber. On the outside of the sleeve body, sealing rings A, B, and C improve the seal between the sleeve body and the compressor main unit. Sealing rings D, E, and F improve the seal between the sleeve body and the air chamber cover. The sleeve body, piston, and air chamber cover form an air chamber that interfaces with the inlet and outlet pipes, achieving a highly effective seal. The use of multiple sealing rings reduces gas leakage and improves compression efficiency.

[0010] Preferably, six mounting holes A are arranged in an annular pattern at equal distances on the limit ring, mounting holes B are arranged in an annular pattern at equal distances on the annular concave groove B and correspond one to one with the mounting holes A, and an arc-shaped waist groove is provided on the annular concave groove B and between two adjacent mounting holes B.

[0011] Preferably, the sleeve body is inserted into the main unit of the compressor, and the sleeve body is fixed to the main unit of the compressor by bolts passing through the annular concave groove B and the limiting ring.

[0012] Preferably, the bolt passes through the mounting hole B and the mounting hole A and is threadedly connected to the main unit of the compressor.

[0013] Preferably, a plurality of mounting holes C are arranged in an annular pattern at equal distances on the mounting ring and located outside the outer ring groove, and the mounting ring is fixed to the main unit of the compressor by screws passing through the mounting holes C.

[0014] When installing the sleeve body and the air cavity cover, the bolts pass through the mounting holes B and A to thread the sleeve body to the main unit of the compressor, and the cylinder head and the sleeve body are fixed to the main unit of the compressor by the screw passing through the mounting hole C, which is double fixed. In addition, the setting of the arc waist groove between the two adjacent mounting holes B provides more installation flexibility for the installation of the air cavity cover.

[0015] Preferably, the inner surface of the sleeve body is provided with a plurality of grooves arranged at equal distances.

[0016] The sleeve body is made of lightweight, high-strength materials, such as aluminum alloy or titanium alloy, to reduce the weight of the device and improve its stability. Multiple grooves are set inside the sleeve body to increase its strength and rigidity.

[0017] Preferably, each of the concave annular grooves is surrounded by two limiting rings located on the outer surface of the sleeve body.

[0018] Compared with the prior art, the technical effects and advantages of the utility model are:

[0019] The piston sleeve for the compressor can effectively improve the sealing performance between the sleeve body 1 and other components by providing multiple sealing rings, thereby preventing leakage of the compressor during operation, reducing gas leakage and improving compression efficiency.

[0020] The design of the sleeve body takes into account the convenience of assembly and maintenance. For example, structures such as the plug-in ring and the installation ring are provided to facilitate assembly and maintenance work and improve work efficiency. The sleeve body is fixed to the main unit of the compressor by bolts and screws, realizing double fixation, enhancing the reliability of the connection, and reducing system failures caused by improper assembly.

[0021] The sleeve body and air chamber cover are secured with bolts and screws, respectively, achieving dual fixation. Anti-loosening measures and fatigue-life limit points are designed to make the entire compression system more stable and durable. Precise hole design and seal installation achieve better sealing performance, enhancing the sealing between the sleeve body and other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the utility model from the first perspective;

[0023] Figure 2 This is a schematic structural diagram of the utility model from a second viewing angle;

[0024] Figure 3 For this utility model Figure 1 Schematic diagram of the structure of the sealing ring installed in the middle;

[0025] Figure 4 For this utility model Figure 2 Schematic diagram of the structure for installing the sealing ring.

[0026] In the figure: 1. Sleeve body; 2. Plug ring; 3. Limiting ring; 4. Mounting ring; 5. Open ring groove; 6. Concave ring groove; 7. Annular concave groove A; 8. Annular concave groove B; 9. Inner ring groove; 10. Outer ring groove; 11. Sealing ring A; 12. Sealing ring B; 13. Sealing ring C; 14. Sealing ring D; 15. Sealing ring E; 16. Sealing ring F; 17. Mounting hole A; 18. Mounting hole B; 19. Arc waist groove; 20. Mounting hole C; 21. Groove position; 22. Limiting ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] The following is combined with Figure 1-4 To further explain this application,

[0029] An embodiment of the present application discloses a piston sleeve for a compressor, comprising a sleeve body 1, wherein the bottom end of the sleeve body 1 is integrally formed with a plug-in ring 2 for inserting into the compressor main unit, and the top is integrally formed with a mounting ring 4, and an open ring groove 5 for fitting a sealing ring A11 is formed between the plug-in ring 2 and the sleeve body 1; the surface of the sleeve body 1 is provided with two concave ring grooves 6 for fitting a sealing ring B12, and each of the concave ring grooves 6 is surrounded by two limit rings 22 located on the outer surface of the sleeve body 1.

[0030] The outer side of the sleeve body 1 is integrally formed with a limiting ring 3 located below the mounting ring 4. The bottom of the limiting ring 3 is provided with an annular concave groove A7 for fitting with the sealing ring C13.

[0031] The mounting ring 4 is provided with an annular concave groove B8 and an inner ring groove 9 and an outer ring groove 10 located on the inner and outer sides of the annular concave groove B8. A sealing ring D14 is installed in the annular concave groove B8, a sealing ring E15 is installed in the inner ring groove 9, and a sealing ring F16 is installed in the outer ring groove 10.

[0032] Sealing rings A11, B12, C13, D14, E15, and F16 are made of high-temperature-resistant and wear-resistant rubber. On the outside of sleeve body 1, sealing rings A11, B12, and C13 improve the seal between sleeve body 1 and the compressor mainframe. Sealing rings D14, E15, and F16 improve the seal between sleeve body 1 and the air chamber cover. Sleeve body 1, piston, and air chamber cover form an air chamber that interfaces with inlet and outlet gas lines, achieving efficient sealing. The presence of multiple sealing rings reduces gas leakage and improves compression efficiency.

[0033] The limiting ring 3 is provided with six mounting holes A17 arranged in an annular pattern at equal distances, the annular concave groove B8 is provided with mounting holes B18 arranged in an annular pattern at equal distances corresponding to the mounting holes A17, and an arc-shaped waist groove 19 is provided on the annular concave groove B8 and between two adjacent mounting holes B18.

[0034] The sleeve body 1 is inserted into the main unit of the compressor and is fixed to the main unit of the compressor by bolts passing through the annular concave groove B8 and the limiting ring 3.

[0035] The bolt passes through the mounting hole B18 and the mounting hole A17 and is threadedly connected to the main body of the compressor.

[0036] A plurality of mounting holes C20 are arranged in an annular pattern at equal intervals on the mounting ring 4 and located outside the outer ring groove 10 . The mounting ring 4 is fixed to the main unit of the compressor via screws passing through the mounting holes C20 .

[0037] When installing the sleeve body 1 and the air cavity cover, the bolts pass through the mounting holes B18 and the mounting holes A17 to thread the sleeve body 1 to the main unit of the compressor, and the cylinder head and the sleeve body 1 are fixed to the main unit of the compressor by the screw passing through the mounting hole C20, which is a double fixation. In addition, the setting of the arc-shaped waist groove 19 between the two adjacent mounting holes B18 provides more installation flexibility for the installation of the air cavity cover.

[0038] Through the through-fixation of bolts and screws, the sleeve body 1 and the air cavity cover can be firmly connected to the main unit of the compressor, ensuring the stability and durability of the entire compression system. The sleeve body 1 and the air cavity cover are fixed by bolts and screws respectively, realizing double fixation, enhancing the reliability of the connection, and reducing system failures caused by improper assembly. The setting of the arc-shaped waist groove 19 provides more space and flexibility for the installation of the air cavity cover, making the assembly process more convenient and adaptable to different working environments and installation requirements.

[0039] By means of preset mounting holes and concave grooves, as well as corresponding mounting holes and bolts / screws, standardization and modularization of components are achieved, which facilitates production and maintenance. Since the design takes the convenience of assembly and maintenance into consideration, when maintenance or replacement of parts is required, the operation can be carried out quickly, which reduces maintenance costs and time. By means of precise hole design and installation of seals, the sealing performance between the sleeve body 1 and other components can be further improved, leakage can be reduced, and compression efficiency can be improved.

[0040] The inner surface of the sleeve body 1 is provided with a plurality of grooves 21 arranged at equal distances.

[0041] The sleeve body 1 is made of a lightweight, high-strength material, such as aluminum alloy or titanium alloy, to reduce the weight of the device and improve its stability. Multiple grooves 21 are provided within the sleeve body 1 to increase its strength and rigidity. Aluminum alloy or titanium alloy has excellent thermal conductivity, which helps improve the thermal management efficiency of the compressor and maintain the operating temperature within a reasonable range.

[0042] The piston sleeve for the compressor can effectively improve the sealing performance between the sleeve body 1 and other components by providing multiple sealing rings, such as sealing ring A11, sealing ring B12, sealing ring C13, sealing ring D14, sealing ring E15, and sealing ring F16, thereby preventing leakage of the compressor during operation and improving the compression efficiency of the system.

[0043] The sealing ring made of rubber material can withstand the high temperature and high pressure environment generated by the compressor during operation, extend the service life of the sealing ring, and reduce the frequency of maintenance and replacement. The design of the sleeve body 1 has structures such as the plug-in ring 2, the installation ring 4, and the limit ring 3, which can ensure the accurate assembly of the sleeve body 1 and other components, and improve the stability and reliability of the entire compressor.

[0044] The air cavity formed by the sleeve body 1, the piston and the air cavity cover can ensure smooth inflow and outflow of gas, reduce resistance, and improve the efficiency of the air cavity, thereby improving the working performance of the entire compressor. The design of the sleeve body 1 takes into account the convenience of assembly and maintenance. For example, structures such as the plug-in ring 2 and the installation ring 4 are provided, which can facilitate assembly and maintenance work and improve work efficiency.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A piston sleeve for a compressor, comprising a sleeve body (1), characterized in that: The bottom end of the sleeve body (1) is integrally formed with a plug ring (2) inserted into the compressor main unit, and the top is integrally formed with a mounting ring (4). An open ring groove (5) for mounting a sealing ring A (11) is formed between the plug ring (2) and the sleeve body (1); the surface of the sleeve body (1) is provided with two concave ring grooves (6) for mounting a sealing ring B (12). The outer side surface of the sleeve body (1) is integrally formed with a limiting ring (3) located below the mounting ring (4), and the bottom of the limiting ring (3) is provided with an annular concave groove A (7) for fitting with the sealing ring C (13); The mounting ring (4) is provided with an annular concave groove B (8) and an inner ring groove (9) and an outer ring groove (10) located on both sides of the annular concave groove B (8). A sealing ring D (14) is installed in the annular concave groove B (8), a sealing ring E (15) is installed in the inner ring groove (9), and a sealing ring F (16) is installed in the outer ring groove (10).

2. The piston sleeve for a compressor according to claim 1, characterized in that: The limiting ring (3) is provided with six mounting holes A (17) arranged in an annular pattern at equal intervals, the annular concave groove B (8) is provided with mounting holes B (18) arranged in an annular pattern at equal intervals and corresponding to the mounting holes A (17), and an arc-shaped waist groove (19) is provided on the annular concave groove B (8) and located between two adjacent mounting holes B (18).

3. The piston sleeve for a compressor according to claim 2, characterized in that: The sleeve body (1) is inserted into the main unit of the compressor, and the sleeve body (1) is fixed to the main unit of the compressor by bolts penetrating the annular concave groove B (8) and the limiting ring (3).

4. The piston sleeve for a compressor according to claim 3, characterized in that: The bolt passes through the mounting hole B (18) and the mounting hole A (17) and is threadedly connected to the main unit of the compressor.

5. The piston sleeve for a compressor according to claim 2, characterized in that: A plurality of mounting holes C (20) are arranged in an annular pattern at equal distances on the mounting ring (4) and located outside the outer ring groove (10). The mounting ring (4) is fixed to the main unit of the compressor via screws passing through the mounting holes C (20).

6. The piston sleeve for a compressor according to claim 1, characterized in that: The inner surface of the sleeve body (1) is provided with a plurality of grooves (21) arranged at equal distances.

7. The piston sleeve for a compressor according to claim 1, characterized in that: Each of the concave annular grooves (6) is surrounded by two limiting rings (22) located on the outer surface of the sleeve body (1).

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