Cylinder body structure of double-cylinder air cylinder of air compressor

Abstract

The utility model provides an air compressor double-cylinder air cylinder body structure which comprises a body, two parallel piston holes are formed in the body, a sealing groove is formed in the end of the body, the piston holes are located in the sealing groove, a plurality of heat dissipation fins are connected to the body, and the heat dissipation fins are located in the sealing groove. The multiple heat dissipation fins are distributed in the axial direction of the piston hole, and gaps are formed between the adjacent heat dissipation fins, so that the purpose of prolonging the service life of the sealing ring is achieved.

Description

Technical Field

[0001] The utility model relates to an air compressor, and particularly to a double-cylinder cylinder block structure of an air compressor. Background Art

[0002] At present, a Chinese patent with the authorization announcement number of CN207813867U discloses an air compressor cylinder block, which includes an aluminum cylinder block. There are two adjacent piston holes on the cylinder block. A square installation block extends from one side of the cylinder block. An air inlet hole communicating with the piston hole is provided on the installation block. A material removal pit is provided at the interval position between the air inlet hole and the outer wall of the installation block. An air outlet hole communicating with the piston hole is provided on the other side of the cylinder block. The cylinder block is provided with a connection panel flush with the opening end face of the air outlet hole. An arc-shaped scavenging channel is provided at one end of the piston hole. The inlet of the scavenging channel is arranged at the opening of the piston hole, and the outlet of the scavenging channel is arranged on the inner wall of the piston hole. The other end of the piston hole is provided with an isosceles hexagonal sealing connection end face. A sealing groove annularly arranged along the piston hole is provided on the sealing connection end face. Connection holes are arranged at the corner positions of the hexagonal surface on the sealing connection end face. In this way, the technical effects of lightweight design, good airtightness and reliable installation can be achieved.

[0003] However, the cylinder block needs to have good sealing performance. However, this kind of air compressor cylinder block only sets a sealing groove on the sealing connection end face, and places the sealing ring in the sealing groove. During the operation of the air compressor, high temperature will be generated. Since the sealing groove is close to the piston hole, the sealing ring bears a high temperature and has poor heat dissipation performance, so its service life is short. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a double-cylinder cylinder block structure of an air compressor to achieve the purpose of prolonging the service life of the sealing ring.

[0005] To solve the above technical problems, the technical solution of the utility model is: a double-cylinder cylinder block structure of an air compressor, including a body. Two parallel piston holes are opened on the body. A sealing groove is opened at the end of the body. The piston holes are located inside the sealing groove. A plurality of heat dissipation fins are connected to the body. The plurality of heat dissipation fins are distributed along the axial direction of the piston holes, and there is a gap between adjacent heat dissipation fins.

[0006] By implementing the above technical solution, the piston rod is slidably connected in the piston hole. The piston rod rubs against the inner wall of the piston hole to generate heat, and the heat is transferred to the body. The heat dissipation area is increased through the heat dissipation fins, so that the body can be quickly cooled down, thereby achieving the purpose of prolonging the service life of the sealing ring located in the sealing groove.

[0007] As a preferred embodiment of the present utility model, heat dissipation grooves are provided on the outer wall of the body, the heat dissipation fins are embedded in the heat dissipation grooves, the heat dissipation fins have notches and form a first connection end and a second connection end, and the first connection end and the second connection end are connected by a positioning structure.

[0008] To achieve the above technical solution, since the heat dissipation fins have notches, the heat dissipation fins can be deformed and then embedded in the heat dissipation grooves, and then the first connection end and the second connection end are fixed through the positioning structure, so that the heat dissipation fins are fixed in the heat dissipation grooves, facilitating the disassembly and assembly between the heat dissipation fins and the body.

[0009] As a preferred embodiment of the present utility model, heat conductive silicone grease layers are filled in both the heat dissipation grooves and the notches.

[0010] To achieve the above technical solution, the heat conductive silicone grease layers can improve the efficiency of transferring heat from the body to the heat dissipation fins, thereby further improving the heat dissipation efficiency and prolonging the service life of the sealing ring.

[0011] As a preferred embodiment of the present utility model, the positioning structure includes a positioning sleeve, a positioning piece, a connection hole, and a connection bolt. The positioning sleeve is fixed to the first connection end, the positioning piece is fixed to the second connection end and is used to penetrate into the positioning sleeve, the connection hole is opened on the surface of the positioning piece, and the connection bolt is threadedly connected to the positioning sleeve and penetrates into the connection hole.

[0012] To achieve the above technical solution, the positioning piece is penetrated into the positioning sleeve. Subsequently, the connection bolt is threadedly connected to the positioning sleeve, and the connection bolt penetrates into the connection hole, so that the positioning piece cannot be disengaged from the positioning sleeve, realizing the positioning between the first connection end and the second connection end.

[0013] As a preferred embodiment of the present utility model, a fastening inclined surface is provided on the inner wall of the connection hole, and the connection bolt abuts against the fastening inclined surface and moves the positioning piece in the direction close to the positioning sleeve.

[0014] To achieve the above technical solution, the positioning bolt is rotated so that the positioning bolt abuts against the fastening inclined surface. Through the guiding action of the fastening inclined surface, the positioning piece further has a tendency to move closer to the positioning sleeve. Subsequently, the positioning bolt penetrates into the positioning hole along the fastening inclined surface, making the connection between the heat dissipation fins and the body more tight and stable.

[0015] As a preferred embodiment of the present utility model, an installation groove is provided on the side wall of the heat dissipation fin, and a silver heat pipe is fixedly connected in the installation groove.

[0016] To implement the above technical solution, silver has a relatively high heat conduction efficiency. Therefore, after fixing the silver heat pipe in the installation groove, the heat dissipation effect can be further improved. Moreover, compared with the body made of silver, the production cost can be effectively reduced.

[0017] As a preferred solution of the present utility model, fixing holes are provided on the end face of the body, and a plurality of the fixing holes are arranged around the piston hole.

[0018] To implement the above technical solution, it is convenient to connect the body and the main engine of the air compressor. Moreover, when connecting the main engine and the body, the sealing ring can be fully contacted with the main engine, improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front structural schematic diagram of the present utility model;

[0020] Figure 2 is a schematic diagram showing the position of the sealing groove;

[0021] Figure 3 is a sectional schematic diagram of the present utility model;

[0022] Figure 4 is a schematic diagram showing the structure of the heat dissipation fins;

[0023] Figure 5 is a schematic diagram showing the connection structure of the positioning sleeve and the positioning piece.

[0024] Reference numerals: 1, body; 11, piston hole; 2, sealing groove; 21, sealing ring; 22, fixing hole; 3, heat dissipation fins; 31, notch; 4, heat dissipation groove; 51, first connection end; 52, second connection end; 6, positioning structure; 61, positioning sleeve; 62, positioning piece; 63, connection hole; 64, connection bolt; 65, fastening inclined surface; 66, threaded hole; 7, installation groove; 8, silver heat pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further details the specific embodiments of the present utility model in conjunction with the drawings, so that the technical solutions of the present utility model are easier to understand and master.

[0026] A double-cylinder cylinder block structure of an air compressor includes a body 1, on which two parallel piston holes 11 are provided, and the piston holes 11 are arranged along the height direction of the body 1.

[0027] A sealing groove 2 is provided at the end of the body 1, the piston hole 11 is located inside the sealing groove 2, and the sealing ring 21 is embedded into the sealing groove 2. Six fixing holes 22 are provided on the end face of the body 1, the fixing holes 22 are arranged around the piston hole 11 and are all located outside the sealing ring 21.

[0028] A plurality of heat dissipation fins 3 are connected to the outer wall of the body 1. The plurality of heat dissipation fins 3 are distributed along the axial direction of the piston hole 11, and there is a gap between two adjacent heat dissipation fins 3.

[0029] An annular heat dissipation groove 4 is formed on the outer wall of the body 1. The heat dissipation fin 3 has a notch 31 and forms a first connection end 51 and a second connection end 52. The heat dissipation fin 3 is inserted into the heat dissipation groove 4. Thermal grease layers are filled in both the heat dissipation groove 4 and the notch 31 to improve the heat conduction efficiency of the body 1 transferring heat to the heat dissipation fins 3.

[0030] The first connection end 51 and the second connection end 52 are connected through a positioning structure 6. The positioning structure 6 includes a positioning sleeve 61, a positioning piece 62, a connection hole 63, and a connection bolt 64. Among them, the positioning sleeve 61 is fixed to the first connection end 51; the positioning piece 62 is fixed to the second connection end 52 and is used to penetrate into the positioning sleeve 61. The connection hole 63 is formed on the surface of the positioning piece 62; a threaded hole 66 is formed on the positioning sleeve 61 and communicates with the outer wall and the inner wall of the positioning sleeve 61.

[0031] A fastening inclined surface 65 is formed on the inner wall of the connection hole 63.

[0032] The heat dissipation fin 3 is inserted into the heat dissipation groove 4, and the connecting piece is penetrated into the connecting sleeve, so that the connection hole 63 and the threaded hole 66 are arranged in a staggered manner. The connection bolt 64 is threadedly connected to the threaded hole 66 and extends into the interior of the connecting sleeve. The end of the connection bolt 64 abuts against the fastening inclined surface 65. Through the guiding action of the fastening inclined surface 65, the staggered arrangement of the connection hole 63 and the threaded hole 66 is gradually changed to the coaxial arrangement of the connection hole 63 and the threaded hole 66 until the end of the connection bolt 64 penetrates into the connection hole 63, so that the connection between the heat dissipation fin 3 and the heat dissipation groove 4 is tighter and more stable.

[0033] An installation groove 7 is formed on the side wall of the heat dissipation fin 3, and a silver heat pipe 8 is fixedly connected in the installation groove 7.

[0034] Of course, the above are only typical examples of the present invention. In addition, the present invention can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A double-cylinder cylinder block structure of an air compressor, comprising a body (1), wherein the body (1) is provided with two parallel piston holes (11), an end of the body (1) is provided with a sealing groove (2), and the piston hole (11) is located inside the sealing groove (2), wherein: A plurality of heat dissipation fins (3) are connected to the body (1), and the plurality of heat dissipation fins (3) are distributed along the axial direction of the piston hole (11), with gaps between adjacent heat dissipation fins (3).

2. The double-cylinder cylinder block structure of an air compressor according to claim 1 is characterized in that: A heat dissipation groove (4) is provided on the outer wall of the body (1), the heat dissipation fin (3) is embedded in the heat dissipation groove (4), the heat dissipation fin (3) has a notch (31) and forms a first connection end (51) and a second connection end (52), and the first connection end (51) and the second connection end (52) are connected via a positioning structure (6).

3. The double-cylinder cylinder block structure of an air compressor according to claim 2 is characterized in that: The heat dissipation groove (4) and the notch (31) are both filled with a thermally conductive silicone grease layer.

4. The double-cylinder cylinder block structure of an air compressor according to claim 2 is characterized in that: The positioning structure (6) comprises a positioning sleeve (61), a positioning sheet (62), a connecting hole (63) and a connecting bolt (64); the positioning sleeve (61) is fixed to the first connecting end (51); the positioning sheet (62) is fixed to the second connecting end (52) and is used to be inserted into the positioning sleeve (61); the connecting hole (63) is formed on the surface of the positioning sheet (62); and the connecting bolt (64) is threadedly connected to the positioning sleeve (61) and is inserted into the connecting hole (63).

5. The double-cylinder cylinder block structure of an air compressor according to claim 4 is characterized in that: A fastening inclined surface (65) is provided on the inner wall of the connecting hole (63), and the connecting bolt (64) contacts the fastening inclined surface (65) to move the positioning piece (62) toward the positioning sleeve (61).

6. A double-cylinder cylinder block structure for an air compressor according to any one of claims 1 to 5, characterized in that: A mounting groove (7) is provided on the side wall of the heat dissipation fin (3), and a silver heat conducting pipe (8) is fixedly connected in the mounting groove (7).

7. The double-cylinder cylinder block structure of an air compressor according to claim 6, characterized in that: A fixing hole (22) is provided on the end surface of the body (1), and a plurality of the fixing holes (22) are arranged around the piston hole (11).

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