Compressor oil return device

Abstract

The utility model provides a compressor oil return device which comprises a shell, and an oil-gas mixing outlet is formed in the left middle side in the shell. A compressed air inlet is formed in the right side in the shell; a vacuum port is formed in the lower side of the interior of the shell and located between the oil-gas mixed outlet and the compressed air inlet, and the oil-gas separator is characterized in that a first sealed type inserting assembly is arranged in the compressed air inlet, and the left end of the first sealed type inserting assembly penetrates through the middle portion of the left portion of the inner side of the compressed air inlet and extends into the vacuum port; and a second sealing type inserting assembly is arranged in the oil-gas mixing outlet. According to the utility model, the arrangement of the first plug connector, the first through hole, the first annular sealing block, the second plug connector, the second through hole and the second annular sealing block facilitates the realization of the interference fit effect of the shell and the plug connectors under the sealing condition, and can effectively avoid the problem that a gap appears between the shell and the plug connectors.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressor oil return, in particular to a compressor oil return device. Background Art

[0002] The compressor oil return device is an oil return structure installed in the compressor system, such as a compressor oil return device with publication number CN207212672U, which includes a shell, and the shell is provided with a compressed air inlet, an oil-gas mixing outlet and a vacuum port. An oil leakage hole is opened at the lubricating oil leakage point, the compressed air inlet is connected to the compressed air source, and the oil-gas mixing outlet is connected to the air inlet of the compressor head. There are still some problems in the actual use of the oil return device, such as: due to the interference fit connection between the connector and the shell, the connector and the shell will be deformed when heated, and then the connection between the connector and the shell will have a gap due to extrusion, which may affect the normal use of the oil return device. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the utility model provides a compressor oil return device, which can achieve the effect of interference fit between the shell and the connector under a sealed condition, and can effectively avoid the problem of gap between the shell and the connector.

[0004] The technical scheme is as follows: a compressor oil return device comprises a shell, an oil-gas mixture outlet is provided on the left side of the shell interior; a compressed air inlet is provided on the right side of the shell interior; a vacuum port is provided on the lower side of the shell interior, and the vacuum port is located between the oil-gas mixture outlet and the compressed air inlet, and is characterized in that a first sealed plug-in assembly is provided inside the compressed air inlet, and the left end of the first sealed plug-in assembly passes through the middle part of the inner left part of the compressed air inlet and extends into the vacuum port; a second sealed plug-in assembly is provided inside the oil-gas mixture outlet, and the right end of the second sealed plug-in assembly passes through the middle part of the inner right part of the oil-gas mixture outlet and extends into the vacuum port; the first sealed plug-in assembly and the second sealed plug-in assembly are respectively arranged with interference fit with the shell; the first sealed plug-in assembly and the second sealed plug-in assembly are arranged to be opposite to each other.

[0005] Preferably, the first sealed plug-in assembly comprises a first plug-in component, a first through hole is transversely formed in the middle portion of the interior of the first plug-in component; an annular groove is formed in the middle portion of the outer wall of the first plug-in component, and a first annular sealing block is sleeved inside the annular groove.

[0006] Preferably, the second sealed plug-in assembly comprises a second plug-in component, a second through hole is transversely formed in the middle portion of the interior of the second plug-in component; an annular mounting groove is formed on the outer wall of the second plug-in component, and a second annular sealing block is sleeved on the inner side of the annular mounting groove.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] In the utility model, the arrangement of the first connector, the first through hole, the first annular sealing block, the second connector, the second through hole and the second annular sealing block is conducive to achieving an interference fit between the shell and the connector in a sealed state, and can effectively avoid the problem of gaps between the shell and the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] Figure 2 It is a structural schematic diagram of the first sealed plug-in assembly of the utility model;

[0011] Figure 3 It is a structural schematic diagram of the second sealed plug-in assembly of the utility model.

[0012] In the figure:

[0013] 1. Shell; 2. Oil-gas mixture outlet; 3. Compressed air inlet; 4. Vacuum port; 5. First sealed plug-in assembly; 51. First plug-in component; 52. First through hole; 53. First annular sealing block; 6. Second sealed plug-in assembly; 61. Second plug-in component; 62. Second through hole; 63. Second annular sealing block. DETAILED DESCRIPTION

[0014] The utility model is described in detail below in conjunction with the accompanying drawings. Figure 1 As shown, a compressor oil return device includes a shell 1, an oil-gas mixture outlet 2 is opened on the left side of the shell 1; a compressed air inlet 3 is opened on the right side of the shell 1; a vacuum port 4 is opened on the lower side of the shell 1, and the vacuum port 4 is located between the oil-gas mixture outlet 2 and the compressed air inlet 3; a first sealed plug-in component 5 is arranged inside the compressed air inlet 3, and the left end of the first sealed plug-in component 5 passes through the middle part of the inner left part of the compressed air inlet 3 and extends to the vacuum port 4; a second sealed plug-in component 6 is arranged inside the oil-gas mixture outlet 2, and the right end of the second sealed plug-in component 6 passes through the middle part of the inner right part of the oil-gas mixture outlet 2 and extends to the inside of the vacuum port 4; the first sealed plug-in component 5 and the second sealed plug-in component 6 are respectively arranged with interference fit with the shell 1; the first sealed plug-in component 5 and the second sealed plug-in component 6 are arranged to be opposite to each other.

[0015] In this embodiment, combined with the Figure 2As shown, the first sealed plug-in assembly 5 includes a first plug-in component 51, a first through hole 52 is transversely opened in the middle of the inner part of the first plug-in component 51; an annular groove is opened in the middle of the outer wall of the first plug-in component 51, and a first annular sealing block 53 is sleeved on the inner side of the annular groove.

[0016] In this embodiment, combined with the Figure 3 As shown, the second sealed plug-in assembly 6 includes a second plug-in component 61, and a second through hole 62 is horizontally opened in the middle part of the inner part of the second plug-in component 61; an annular mounting groove is opened on the outer wall of the second plug-in component 61, and a second annular sealing block 63 is sleeved on the inner side of the annular mounting groove.

[0017] In this embodiment, specifically, the first connector 51 is disposed inside the compressed air inlet 3 , and the left end of the first connector 51 passes through the middle portion of the inner left portion of the compressed air inlet 3 and extends to the inside of the vacuum port 4 .

[0018] In this embodiment, specifically, the first connector 51 is interference-fitted with the housing 1 , and a first annular sealing block 53 is clamped at the connection between the first connector 51 and the housing 1 .

[0019] In this embodiment, specifically, the second connector 61 is disposed inside the oil-gas mixture outlet 2 , and the right end of the second connector 61 passes through the middle portion of the inner right portion of the oil-gas mixture outlet 2 and extends to the inside of the vacuum port 4 .

[0020] In this embodiment, specifically, the second connector 61 is interference fit with the housing 1 , and a second annular sealing block 63 is clamped at the connection between the second connector 61 and the housing 1 .

[0021] In this embodiment, specifically, the first annular sealing block 53 and the second annular sealing block 63 are respectively made of annular rubber blocks.

[0022] In the present embodiment, specifically, when the utility model is used, since the first annular sealing block 53 and the second annular sealing block 63 are respectively provided on the outer walls of the first connector 51 and the second connector 61, when the first connector 51 and the second connector 61 are respectively installed in the interior of the shell 1, the first annular sealing block 53 is clamped at the connection between the first connector 51 and the shell 1, and the second annular sealing block 63 is clamped at the connection between the second connector 61 and the shell 1. Since the first annular sealing block 53 and the second annular sealing block 63 both have a certain flexibility, when the first connector 51 and the second connector 61 are respectively deformed by heat, the first annular sealing block 53 and the second annular sealing block 63 will automatically change with the changes of the first connector 51 and the second connector 61, thereby always sealing the gap, achieving the effect of interference fit between the shell and the connector under the sealed condition, and effectively avoiding the problem of gap between the shell and the connector.

[0023] In this embodiment, specifically, the second connector 61 and the first connector 51 are arranged to be opposite to each other.

[0024] In this embodiment, specifically, the inner diameter of the first through hole 52 is smaller than the inner diameter of the second through hole 62 .

[0025] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A compressor oil return device, comprising a housing (1), wherein an oil-gas mixture outlet (2) is provided on the left side of the housing (1); a compressed air inlet (3) is provided on the right side of the housing (1); a vacuum port (4) is provided on the lower side of the housing (1), and the vacuum port (4) is located between the oil-gas mixture outlet (2) and the compressed air inlet (3), wherein: A first sealed plug-in assembly (5) is arranged inside the compressed air inlet (3), and the left end of the first sealed plug-in assembly (5) passes through the middle part of the inner left part of the compressed air inlet (3) and extends to the vacuum port (4); a second sealed plug-in assembly (6) is arranged inside the oil-gas mixture outlet (2), and the right end of the second sealed plug-in assembly (6) passes through the middle part of the inner right part of the oil-gas mixture outlet (2) and extends to the inside of the vacuum port (4); the first sealed plug-in assembly (5) and the second sealed plug-in assembly (6) are respectively arranged in an interference fit with the housing (1); the first sealed plug-in assembly (5) and the second sealed plug-in assembly (6) Oppositely matched arrangement; the first sealed plug-in assembly (5) comprises a first plug-in component (51), a first through hole (52) is transversely provided in the middle portion of the interior of the first plug-in component (51); an annular groove is provided in the middle portion of the outer wall of the first plug-in component (51), and a first annular sealing block (53) is sleeved on the inner side of the annular groove; the second sealed plug-in assembly (6) comprises a second plug-in component (61), a second through hole (62) is transversely provided in the middle portion of the interior of the second plug-in component (61); an annular mounting groove is provided on the outer wall of the second plug-in component (61), and a second annular sealing block (63) is sleeved on the inner side of the annular mounting groove.

2. The compressor oil return device according to claim 1, characterized in that: The first connector (51) is arranged inside the compressed air inlet (3), and the left end of the first connector (51) passes through the middle part of the inner left part of the compressed air inlet (3) and extends to the inside of the vacuum port (4).

3. The compressor oil return device according to claim 1, characterized in that: The first plug-in connector (51) is arranged in an interference fit with the housing (1), and a first annular sealing block (53) is clamped at the connection between the first plug-in connector (51) and the housing (1).

4. The compressor oil return device according to claim 1, characterized in that: The second connector (61) is arranged inside the oil-gas mixture outlet (2), and the right end of the second connector (61) passes through the middle part of the inner right part of the oil-gas mixture outlet (2) and extends to the inside of the vacuum port (4).

5. The compressor oil return device according to claim 1, characterized in that: The second plug connector (61) is arranged in an interference fit with the housing (1), and a second annular sealing block (63) is clamped at the connection between the second plug connector (61) and the housing (1).

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