Compressor oil change mechanism and compressor applying same

Abstract

The utility model discloses a compressor oil changing mechanism and a compressor applying the same, and relates to the field of compressor maintenance, the compressor oil changing mechanism comprises a first connecting pipe, a second connecting pipe, a first valve body and a second valve body, the first connecting pipe is connected with the first valve body, the second connecting pipe is connected with the second valve body, one end of the first connecting pipe is connected with an air inlet of the compressor, and the other end of the first connecting pipe is connected with an air outlet of the compressor. One end of the second connecting pipe is connected with an air outlet of the compressor, and the other end of the second connecting pipe is connected with vacuumizing equipment or a refrigerant discharging pipeline; after oil discharge is completed, the first connecting pipe is connected with oil supply equipment, the second connecting pipe is connected with vacuumizing equipment, the vacuumizing equipment is started, and lubricating oil in the oil supply equipment enters the compressor and flows into the power mechanism; the first valve body is closed after oil injection is completed, the second valve body is closed after vacuumizing, oil change operation is completed, oil change operation of the compressor without an oil injection port can be completed in situ, operation is convenient and fast, and the maintenance efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of compressor repair and maintenance, in particular to a compressor oil changing mechanism and a compressor using the same. Background Art

[0002] In daily life, air conditioners are widely used as indoor temperature regulation equipment. The main power equipment of air conditioners is the compressor, so the service life of the compressor affects the service life of the entire air conditioner.

[0003] The compressor is mainly composed of a power mechanism and a compression mechanism. The compression mechanism uses the power output of the power mechanism to compress the refrigerant. The power mechanism requires lubricating oil to provide it with lubrication, sealing, cooling and other functions. Therefore, its service life is closely related to the quality of the lubricating oil.

[0004] As the compressor's service life increases, the quality of the lubricating oil will gradually decline. Therefore, the compressor needs to be replaced with oil during repair or maintenance. However, some existing compressors are only equipped with an oil drain pipe with a one-way valve. The maintenance technician can only drain the oil but cannot fill it with oil. If such compressors need to be filled with oil after draining the oil, they often need to be returned to the factory and filled with oil using the manufacturer's unique oil filling equipment, which seriously delays the time required for repair and maintenance and reduces the efficiency of repair and maintenance.

[0005] Therefore, people are in urgent need of a compressor oil changing mechanism for improving the maintenance efficiency of a compressor that is not provided with an oil filling port. Summary of the invention

[0006] The purpose of the utility model is to provide a compressor oil changing mechanism and a compressor using the same, so as to solve the problems existing in the above-mentioned prior art. By utilizing the arrangement of the first valve body and the second valve body, the oil changing operation of the compressor can be completed in situ, thereby improving the maintenance efficiency.

[0007] To achieve the above-mentioned purpose, the utility model provides the following solution: the utility model provides a compressor oil changing mechanism, including a first connecting pipe, a second connecting pipe, a first valve body and a second valve body, the first connecting pipe is connected to the first valve body, the second connecting pipe is connected to the second valve body, one end of the first connecting pipe is connected to the air inlet of the compressor, and the other end is connected to the oil supply port of the oil supply equipment or the refrigerant supply pipeline, one end of the second connecting pipe is connected to the air outlet of the compressor, and the other end is connected to the suction port of the vacuum equipment or the refrigerant discharge pipeline.

[0008] Preferably, the first valve body and the second valve body are needle valves.

[0009] Preferably, the first connecting pipe is an air inlet pipe of a compressor, the first valve body is welded to the air inlet pipe of the compressor, the second connecting pipe is an air outlet pipe of the compressor, and the second valve body is welded to the air outlet pipe of the compressor.

[0010] Preferably, the compressor oil changing mechanism also includes a third valve body and a fourth valve body, one end of the third valve body is connected to the refrigerant supply pipeline, and the other end is detachably connected to the first connecting pipe, and one end of the fourth valve body is connected to the refrigerant discharge pipeline, and the other end is detachably connected to the second connecting pipe.

[0011] Preferably, the third valve body and the fourth valve body are manual valves.

[0012] Preferably, the first connecting pipe and the second connecting pipe are three-way connecting pipes, the first valve body and the third valve body are respectively connected to different passages of the first connecting pipe, and the second valve body and the fourth valve body are respectively connected to different passages of the second connecting pipe.

[0013] Preferably, a passage opening of the first connecting pipe connected to the first valve body is provided with a blocking piece, and a passage opening of the second connecting pipe connected to the second valve body is provided with a blocking piece.

[0014] The utility model also provides a compressor using the above-mentioned compressor oil changing mechanism, including a compressor body, an oil drain pipe is arranged at the bottom of the compressor body, the air inlet pipe of the compressor body is connected to the first connecting pipe, the air outlet pipe is connected to the second connecting pipe, the refrigerant supply pipeline of the compressor body is connected to the third valve body, and the refrigerant discharge pipeline of the compressor body is connected to the fourth valve body.

[0015] Compared with the prior art, the utility model mainly achieves the following technical effects:

[0016] When oil change is needed, first use the oil drain pipe to drain the lubricating oil in the compressor. After the discharge is completed, connect the first connecting pipe to the oil supply equipment, connect the second connecting pipe to the vacuum equipment, start the vacuum equipment, and the lubricating oil in the oil supply equipment enters the compression mechanism of the compressor. Using the characteristics of the lubricating oil liquid flow, under the influence of gravity, the lubricating oil passes through the gap into the compressor power mechanism; after the oil filling is completed, close the first valve body, and use the vacuum equipment to vacuum the compressor. After the vacuum is completed, close the second valve body. At this time, the oil change operation is completed. The oil change operation of the compressor without an oil filling port can be completed in situ without returning to the factory for oil change. The operation is convenient and the maintenance efficiency is high.

[0017] Compared with the prior art, other solutions of the utility model have achieved the following technical effects:

[0018] When the compressor is repaired and maintained, the leakage of the refrigerant in the pipeline can be avoided by closing the third valve body and the fourth valve body, thereby saving refrigerant and reducing the repair and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic diagram of the structure of a compressor using a compressor oil changing mechanism according to the utility model;

[0021] Among them, 1. the first connecting pipe; 2. the second connecting pipe; 3. the first valve body; 4. the second valve body; 5. the third valve body; 6. the fourth valve body; 7. the compressor body; 8. the oil drain pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model aims to provide a compressor oil changing mechanism and a compressor using the same, so as to solve the problems existing in the prior art. By utilizing the arrangement of the first valve body and the second valve body, the oil changing operation of the compressor can be completed in situ, thereby improving the maintenance efficiency.

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Please refer to Figure 1As shown, a compressor oil changing mechanism is provided, including a first connecting pipe 1, a second connecting pipe 2, a first valve body 3 and a second valve body 4. The first connecting pipe 1 is connected with the first valve body 3, and the first valve body 3 can be located at the end or the middle of the first connecting pipe 1. The second connecting pipe 2 is connected with the second valve body 4, and the second valve body 4 can be located at the end or the middle of the second connecting pipe 2. One end of the first connecting pipe 1 is connected to the air inlet of the compressor, and the other end is connected to the oil supply port of the oil supply equipment or the refrigerant supply pipeline according to the working condition. One end of the second connecting pipe 2 is connected to the air outlet of the compressor, and the other end is connected to the suction port of the vacuum equipment or the refrigerant discharge pipeline according to the working condition. When the compressor works normally, the first connecting pipe 1 is connected to the refrigerant supply pipeline, and the second connecting pipe 2 is connected to the refrigerant discharge pipeline. When the compressor is in oil changing working condition, the first connecting pipe 1 is connected to the oil supply equipment, and the second connecting pipe 2 is connected to the vacuum equipment; the oil supply equipment can be a box body, a bag body, a refueling gun, etc. containing oil, and the vacuum equipment uses a vacuum pump.

[0026] The working principle of this mechanism is as follows: when oil change is needed, the lubricating oil in the compressor is first discharged by using the oil drain pipe 8. After the discharge is completed, the first connecting pipe 1 is connected to the oil supply equipment, and the second connecting pipe 2 is connected to the vacuum pumping equipment. The vacuum pumping equipment is started, and the lubricating oil in the oil supply equipment enters the compression mechanism of the compressor. By utilizing the flow characteristics of the lubricating oil liquid, under the influence of gravity, the lubricating oil passes through the gap between the compression mechanism and the power mechanism and enters the compressor power mechanism; after the oil filling is completed, the first valve body 3 is closed, and the vacuum pumping equipment is used to vacuum the compressor. After the vacuum pumping is completed, the second valve body 4 is closed. At this time, the oil change operation is completed. The oil change operation of the compressor without an oil filling port can be completed in situ without returning to the factory for oil change. The operation is convenient and the maintenance efficiency is high.

[0027] The first valve body 3 and the second valve body 4 can be manual valves or solenoid valves. Preferably, the first valve body 3 and the second valve body 4 are needle valves, which can reduce costs accordingly.

[0028] The air inlet pipe of the compressor can be used as the first connecting pipe 1, the first valve body 3 is welded to the air inlet pipe of the compressor, the air outlet pipe of the compressor is used as the second connecting pipe 2, and the second valve body 4 is welded to the air outlet pipe of the compressor.

[0029] The mechanism also includes a third valve body 5 and a fourth valve body 6. One end of the third valve body 5 is connected to the refrigerant supply pipeline, and the other end is detachably connected to the first connecting pipe 1. One end of the fourth valve body 6 is connected to the refrigerant discharge pipeline, and the other end is detachably connected to the second connecting pipe 2. The detachable connection is a threaded connection. When the compressor is repaired and maintained, the third valve body 5 and the fourth valve body 6 can be turned off to avoid leakage of the refrigerant in the pipeline, thereby saving refrigerant and reducing maintenance costs.

[0030] To reduce costs, the third valve body 5 and the fourth valve body 6 are manual valves, such as shut-off valves, stop valves, ball valves, etc.

[0031] In order to eliminate the time required for replacing the connecting pipe and connecting different pipelines when changing the oil, the first connecting pipe 1 and the second connecting pipe 2 can be set as three-way connecting pipes, the first valve body 3 and the third valve body 5 are respectively connected to different passages of the first connecting pipe 1, and the second valve body 4 and the fourth valve body 6 are respectively connected to different passages of the second connecting pipe 2, and the switching between the passages can be completed by controlling each valve body.

[0032] When the connecting pipe is set as a three-way connecting pipe, a blocking piece is provided at the passage opening of the first connecting pipe 1 connected to the first valve body 3, and a blocking piece is provided at the passage opening of the second connecting pipe 2 connected to the second valve body 4. The blocking piece can be a threaded cover body, which is used to block the passage opening when the compressor is in normal working condition to prevent the entry of debris.

[0033] The oil changing mechanism in this embodiment can be installed on the compressor during the production phase, and can also be installed on the compressor during the subsequent maintenance phase.

[0034] The utility model also provides a compressor using the above-mentioned compressor oil changing mechanism, including a compressor body 7, an oil drain pipe 8 with a built-in one-way valve is arranged at the bottom of the compressor body 7, the air inlet pipe of the compressor body 7 is connected to the first connecting pipe 1, the air outlet pipe is connected to the second connecting pipe 2, the refrigerant supply pipeline of the compressor body 7 is connected to the third valve body 5, and the refrigerant discharge pipeline of the compressor body 7 is connected to the fourth valve body 6.

[0035] When the air inlet pipe and the air outlet pipe of the compressor are used as the first connecting pipe 1 and the second connecting pipe 2 , they can be welded to the first valve body 3 and the second valve body 4 .

[0036] Adaptive changes made according to actual needs are all within the protection scope of this utility model.

[0037] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0038] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A compressor oil changing mechanism, characterized in that: It includes a first connecting pipe, a second connecting pipe, a first valve body and a second valve body, the first connecting pipe is connected to the first valve body, the second connecting pipe is connected to the second valve body, one end of the first connecting pipe is connected to the air inlet of the compressor, and the other end is connected to the oil supply port of the oil supply equipment or the refrigerant supply pipeline, one end of the second connecting pipe is connected to the air outlet of the compressor, and the other end is connected to the suction port of the vacuum equipment or the refrigerant discharge pipeline.

2. The compressor oil changing mechanism according to claim 1, characterized in that: The first valve body and the second valve body are needle valves.

3. The compressor oil changing mechanism according to claim 1, characterized in that: The first connecting pipe is the air inlet pipe of the compressor, the first valve body is welded to the air inlet pipe of the compressor, the second connecting pipe is the air outlet pipe of the compressor, and the second valve body is welded to the air outlet pipe of the compressor.

4. The compressor oil changing mechanism according to claim 1, characterized in that: The compressor oil changing mechanism also includes a third valve body and a fourth valve body, one end of the third valve body is connected to the refrigerant supply pipeline, and the other end is detachably connected to the first connecting pipe, and one end of the fourth valve body is connected to the refrigerant discharge pipeline, and the other end is detachably connected to the second connecting pipe.

5. The compressor oil changing mechanism according to claim 4, characterized in that: The third valve body and the fourth valve body are manual valves.

6. The compressor oil changing mechanism according to claim 4, characterized in that: The first connecting pipe and the second connecting pipe are three-way connecting pipes, the first valve body and the third valve body are respectively connected to different passages of the first connecting pipe, and the second valve body and the fourth valve body are respectively connected to different passages of the second connecting pipe.

7. The compressor oil changing mechanism according to claim 6, characterized in that: A blocking piece is provided at a passage opening of the first connecting pipe connected to the first valve body, and a blocking piece is provided at a passage opening of the second connecting pipe connected to the second valve body.

8. A compressor, characterized in that: The compressor oil changing mechanism as described in any one of claims 1 to 7 includes a compressor body, an oil drain pipe is arranged at the bottom of the compressor body, an air inlet pipe of the compressor body is connected to the first connecting pipe, an air outlet pipe is connected to the second connecting pipe, a refrigerant supply pipeline of the compressor body is connected to a third valve body, and a refrigerant discharge pipeline of the compressor body is connected to a fourth valve body.

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