Cylinder sleeve assembly of medical oilless air compressor

Abstract

The utility model discloses a medical oilless air compressor cylinder sleeve assembly, which comprises a cylinder sleeve, a first pressing ring, a second pressing ring and radiating fins, the first pressing ring is concentrically arranged at the top of the cylinder sleeve, the second pressing ring is concentrically arranged at the bottom of the cylinder sleeve, the radiating fins are arranged between the first pressing ring and the second pressing ring, and the radiating fins are arranged in the cylinder sleeve. The cooling fins are parallel to the axial direction of the cylinder sleeve, one side of each cooling fin is attached to the outer circle of the cylinder sleeve, first positioning grooves corresponding to the tops of the cooling fins are formed in the bottom face of the first pressing ring in an inwards-concave mode, and second positioning grooves corresponding to the bottoms of the cooling fins are formed in the top face of the second pressing ring. The cylinder sleeve assembly of the medical oilless air compressor is convenient to assemble, the machining cost is reduced, the cylinder sleeve can be independently replaced after being abraded, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a cylinder sleeve component of a medical oil-free air compressor. Background Art

[0002] The operation of an oil-free air compressor requires the cooperation of the piston and the cylinder liner. Since no lubricating oil is required, the compressed air generated is cleaner and suitable for medical equipment.

[0003] When the piston moves in the cylinder sleeve, the heat generated is relatively large, and the heat dissipation needs to be strengthened. The utility model patent with application number 2019216244076 discloses a heat dissipation structure of the piston cylinder sleeve of an oil-free air compression pump. The heat dissipation effect can be improved by processing the heat sink outside the cylinder sleeve, but the processing cost is relatively high. Since there is no lubricating oil for lubrication and cooling in the oil-free air compressor, the friction is large and the life is relatively short. The cylinder sleeve needs to be replaced frequently, which further increases the maintenance cost and needs to be improved. Utility Model Content

[0004] The utility model aims to provide a cylinder sleeve assembly of a medical oil-free air compressor, which reduces the processing difficulty and maintenance cost.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A cylinder sleeve assembly of a medical oil-free air compressor comprises: a cylinder sleeve, a first pressing ring, a second pressing ring and a heat dissipation fin, wherein the first pressing ring is concentrically arranged at the top of the cylinder sleeve, the second pressing ring is concentrically arranged at the bottom of the cylinder sleeve, the heat dissipation fin is arranged between the first pressing ring and the second pressing ring, the heat dissipation fin is parallel to the axial direction of the cylinder sleeve, and one side of the heat dissipation fin is in contact with the outer circle of the cylinder sleeve, the bottom surface of the first pressing ring is concavely arranged with a first positioning groove corresponding to the top of the heat dissipation fin, and the top surface of the second pressing ring is arranged with a second positioning groove corresponding to the bottom of the heat dissipation fin.

[0007] Wherein, the side surface of the heat dissipation fin is provided with an arc surface which fits with the outer circle of the cylinder sleeve.

[0008] Wherein, the first pressing ring and the second pressing ring are symmetrically provided with through holes.

[0009] Wherein, the number of the heat dissipation fins is 10 to 50.

[0010] Wherein, a first annular groove corresponding to the first pressure ring is concavely arranged on the top edge of the cylinder sleeve, and the first pressure ring is arranged in the first annular groove.

[0011] Wherein, a second annular groove corresponding to the second pressure ring is concavely arranged on the bottom edge of the cylinder sleeve, and the second pressure ring is arranged in the second annular groove.

[0012] Wherein, a first sealing ring installation groove is arranged on the top surface of the first pressing ring, and a second sealing ring installation groove is arranged on the bottom surface of the second pressing ring.

[0013] The beneficial effects of the utility model are as follows: a cylinder sleeve assembly of a medical oil-free air compressor, in which the cylinder sleeve and the heat dissipation fins adopt a split structure, which is convenient for assembly and reduces the processing difficulty and cost. Moreover, the cylinder sleeve can be replaced separately after being worn, and the first pressure ring, the second pressure ring and the heat dissipation fins can be reused, which greatly reduces the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 yes Figure 1 Exploded diagram of

[0016] Figure 3 yes Figure 2 Top view of the second pressure ring. DETAILED DESCRIPTION

[0017] Combine the following Figure 1 to Figure 3 The technical solution of the utility model is further illustrated by specific embodiments.

[0018] like Figure 1 The cylinder sleeve assembly of the medical oil-free air compressor shown includes: a cylinder sleeve 1, a first pressure ring 3, a second pressure ring 2 and a heat dissipation fin 4. The first pressure ring 3 is concentrically arranged on the top of the cylinder sleeve 1. In this embodiment, the top edge of the cylinder sleeve 1 is concavely arranged with a first annular groove 9 corresponding to the first pressure ring 3. The first pressure ring 3 is arranged in the first annular groove 9, which is accurately positioned and easy to assemble.

[0019] The second pressing ring 2 is concentrically arranged at the bottom of the cylinder sleeve 1. In this embodiment, Figure 2 As shown, the bottom edge of the cylinder sleeve 1 is concavely provided with a second annular groove 10 corresponding to the second pressing ring 2, and the second pressing ring 2 is arranged in the second annular groove 10, thereby ensuring the concentricity and structural stability after assembly.

[0020] The heat dissipation fin 4 is arranged between the first pressing ring 3 and the second pressing ring 2. In the present embodiment, the heat dissipation fin 4 is parallel to the axial direction of the cylinder liner 1, and one side of the heat dissipation fin 4 is in contact with the outer circle of the cylinder liner 1, so that the heat of the cylinder liner 1 can be transferred to the heat dissipation fin 4, thereby improving the heat dissipation effect of the cylinder liner 1 through the heat dissipation fin 4.

[0021] In this embodiment, the number of the heat dissipation fins 4 is 10 to 50. A large number of heat dissipation fins 4 is conducive to increasing the heat dissipation area and heat dissipation effect. The side of the heat dissipation fin 4 is provided with an arc surface that fits the outer circle of the cylinder sleeve 1, ensuring the fit between the side of the heat dissipation fin 4 and the outer circle of the cylinder sleeve 1 and the heat conduction effect.

[0022] A first positioning groove 6 corresponding to the top of the heat sink fin 4 is concavely arranged on the bottom surface of the first pressing ring 3 to position the top of the heat sink fin 4. A second positioning groove 7 corresponding to the bottom of the heat sink fin 4 is arranged on the top surface of the second pressing ring 2 to position the bottom of the heat sink fin 4, thereby improving the convenience of assembly and the structural stability after assembly, reducing the processing difficulty and cost, and the cylinder liner 1 can be replaced separately after being worn, and the first pressing ring 3, the second pressing ring 2 and the heat sink fin 4 can be reused, thereby reducing the maintenance cost.

[0023] like Figure 3 As shown, for the convenience of installation, through holes 11 are symmetrically arranged on the first pressing ring 3 and the second pressing ring 2, respectively, and the screws on the cylinder head of the oil-free air compressor are connected to the crankcase through the through holes 11, thereby realizing the compression and fixation of the first pressing ring 3, the cylinder liner 1 and the second pressing ring 2, and the structure is stable.

[0024] In this embodiment, a first sealing ring installation groove 5 is provided on the top surface of the first pressure ring 3, and a second sealing ring installation groove 8 is provided on the bottom surface of the second pressure ring 2, so as to facilitate the installation of the sealing ring and avoid the problem of cylinder liner leakage.

[0025] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A cylinder sleeve assembly of a medical oil-free air compressor, characterized in that: include: A cylinder liner, a first pressing ring, a second pressing ring and heat dissipation fins, wherein the first pressing ring is concentrically arranged at the top of the cylinder liner, the second pressing ring is concentrically arranged at the bottom of the cylinder liner, the heat dissipation fins are arranged between the first pressing ring and the second pressing ring, the heat dissipation fins are parallel to the axial direction of the cylinder liner, and one side of the heat dissipation fins is in contact with the outer circle of the cylinder liner, the bottom surface of the first pressing ring is concavely arranged with a first positioning groove corresponding to the top of the heat dissipation fin, and the top surface of the second pressing ring is arranged with a second positioning groove corresponding to the bottom of the heat dissipation fin.

2. The cylinder sleeve assembly of the medical oil-free air compressor according to claim 1, characterized in that: The side surface of the heat dissipation fin is provided with an arc surface which fits with the outer circle of the cylinder sleeve.

3. The cylinder sleeve assembly of the medical oil-free air compressor according to claim 1, characterized in that: The first pressing ring and the second pressing ring are symmetrically provided with through holes.

4. The cylinder sleeve assembly of the medical oil-free air compressor according to claim 1, characterized in that: The number of the heat dissipation fins is 10 to 50.

5. The cylinder sleeve assembly of the medical oil-free air compressor according to claim 1, characterized in that: The top edge of the cylinder sleeve is concavely provided with a first annular groove corresponding to the first pressing ring, and the first pressing ring is arranged in the first annular groove.

6. The cylinder sleeve assembly of the medical oil-free air compressor according to claim 1, characterized in that: The bottom edge of the cylinder sleeve is concavely provided with a second annular groove corresponding to the second pressing ring, and the second pressing ring is arranged in the second annular groove.

7. The cylinder sleeve assembly of the medical oil-free air compressor according to claim 1, characterized in that: The top surface of the first pressure ring is provided with a first sealing ring installation groove, and the bottom surface of the second pressure ring is provided with a second sealing ring installation groove.

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