Self-lubricating compressor

By designing a self-lubricating compressor, utilizing a pump mechanism and automatic on/off valves, the problem of untimely lubrication is solved, achieving automatic lubrication of parts, reducing friction and noise, and extending service life.

CN224200767UActive Publication Date: 2026-05-05SICHUAN BODE ANT NEST CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN BODE ANT NEST CONSTR ENG CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In the operation of existing compressors, untimely lubrication leads to accelerated wear of parts, increased noise, reduced service life, and a lack of automatic lubrication devices.

Method used

The self-lubricating compressor is designed with a pump mechanism and a delivery pipe. The automatic delivery and control of the lubricating fluid is achieved through an automatic on/off valve. The magnetic movable plate and on/off control mechanism ensure that the lubricating fluid enters the lubrication pipeline when needed and shuts off when not needed.

Benefits of technology

It achieves automatic lubrication of compressor parts, reduces friction and noise, and extends the service life of the device.

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Abstract

The utility model discloses a self-lubricating compressor and relates to the technical field of compressors, the self-lubricating compressor comprises a compressor body, a self-lubricating mechanism is arranged on the compressor body, the self-lubricating mechanism comprises a liquid pumping mechanism used for providing lubricating liquid and a liquid feeding pipe, one end of the liquid feeding pipe is communicated with the liquid pumping mechanism, and the other end of the liquid feeding pipe is communicated with the compressor body. And an automatic on-off valve is arranged on the liquid feeding pipe, and the automatic on-off valve is used for controlling on-off of the liquid feeding pipe. The self-lubricating mechanism installed on the compressor body is used for lubricating parts needing to be lubricated in the compressor body. And the liquid pumping mechanism is used for conveying the lubricating liquid into the lubricating pipeline in the compressor body through the liquid conveying pipe for lubrication. The automatic on-off valve can automatically control on-off of the liquid feeding pipe, the valve is opened when needed, and lubricating liquid can flow into a lubricating pipeline in the compressor body through the valve. And the valve is closed when lubrication is not needed.
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Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and more specifically, to a self-lubricating compressor. Background Technology

[0002] A compressor is a driven fluid machine that elevates low-pressure gas to high-pressure gas; it is the heart of a refrigeration system. It draws in low-temperature, low-pressure refrigerant gas through the suction pipe, compresses it using a piston driven by a motor, and then discharges high-temperature, high-pressure refrigerant gas through the discharge pipe, providing power for the refrigeration cycle. This achieves the refrigeration cycle of compression → condensation (heat release) → expansion → evaporation (heat absorption). Compressors are classified into reciprocating compressors, screw compressors, centrifugal compressors, and linear compressors, among others.

[0003] Many internal components of a compressor require lubrication before or during use, necessitating the design of specialized lubrication devices. However, most existing compressors do not automatically add lubricating oil, leading to insufficient lubrication of components such as the rotor, shaft, and bearings during operation. This results in increased friction and wear, reducing the lifespan of the device and causing significant noise during operation.

[0004] Therefore, a self-lubricating compressor is proposed. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a self-lubricating compressor.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A self-lubricating compressor includes a compressor body with a self-lubricating mechanism. The self-lubricating mechanism includes a pump mechanism for providing lubricating fluid and a delivery pipe. One end of the delivery pipe is connected to the pump mechanism, and the other end is connected to a lubrication pipe inside the compressor body. An automatic on / off valve is provided on the delivery pipe to control the on / off state of the delivery pipe.

[0008] Furthermore, in this utility model, the aforementioned automatic on / off valve includes a leaking plate, a magnetically attracted movable plate, and an on / off control mechanism. The leaking plate is fixedly disposed within the aforementioned liquid delivery pipe; the magnetically attracted movable plate is slidably disposed within the aforementioned liquid delivery pipe and is always in contact with the leaking plate; the leaking plate has a plurality of first through holes, and the magnetically attracted movable plate has a plurality of second through holes. Under the control of the aforementioned on / off control mechanism, the second through holes can be connected or disconnected from the first through holes in a one-to-one correspondence; when the second through holes are connected to the first through holes, the lubricating fluid in the aforementioned liquid delivery pipe can flow sequentially through the first through holes and the second through holes into the lubrication pipe inside the aforementioned compressor body.

[0009] Furthermore, in this utility model, the on / off control mechanism includes a spring, an electromagnet, and a controller with a timing function. The electromagnet is disposed on the liquid delivery pipe and located at one end of the magnetically attracted movable plate. The controller with the timing function is electrically connected to the electromagnet. A fixed seat is disposed on the liquid delivery pipe. The fixed seat is located at the end of the magnetically attracted movable plate away from the electromagnet. One end of the spring is connected to the magnetically attracted movable plate, and the other end is connected to the fixed seat.

[0010] Furthermore, in this utility model, a groove adapted to the magnetically movable plate is provided in the liquid delivery tube, and the magnetically movable plate is slidably disposed in the groove; a limiting ring is provided in the groove, and the limiting ring is located between the fixed seat and the magnetically movable plate; the spring passes through the limiting ring and is connected to the magnetically movable plate.

[0011] Furthermore, in this utility model, a through hole is provided at the bottom of the aforementioned chute, and the through hole communicates with the interior of the aforementioned liquid delivery pipe.

[0012] Furthermore, in this utility model, the above-mentioned pumping mechanism includes a water pump, an inlet pipe, and a liquid storage tank disposed on the compressor body. The water pump is disposed on the liquid storage tank and has an inlet and an outlet. One end of the inlet pipe is connected to the inlet and the other end is connected to the interior of the liquid storage tank. The end of the delivery pipe away from the compressor body is connected to the outlet.

[0013] Furthermore, in this utility model, the liquid delivery pipe is provided with a corrugated pipe section.

[0014] The beneficial effects of this utility model are:

[0015] This invention provides a self-lubricating compressor. A self-lubricating mechanism installed on the compressor body lubricates internal components requiring lubrication. A pumping mechanism delivers lubricating fluid via a delivery pipe to the lubrication pipes inside the compressor body. An automatic on / off valve automatically controls the opening and closing of the delivery pipe; the valve opens when needed, allowing lubricating fluid to flow into the lubrication pipes inside the compressor body; the valve closes when lubrication is not required. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure in which the second through hole and the first through hole are in a connected state in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure in which the second through hole and the first through hole are not connected in an embodiment of this utility model.

[0019] In the diagram: 1-Compressor body; 2-Liquid delivery pipe; 3-Drain plate; 4-Magnetic movable plate; 5-First through hole; 6-Second through hole; 7-Spring; 8-Electromagnet; 9-Fixed base; 10-Slide groove; 11-Limit ring; 12-Through hole; 13-Water pump; 14-Liquid inlet pipe; 15-Liquid storage tank; 16-Liquid inlet; 17-Liquid outlet; 18-Corrugated pipe section. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] See Figure 1-3 This utility model provides a technical solution:

[0022] A self-lubricating compressor includes a compressor body 1, on which a self-lubricating mechanism is provided. The self-lubricating mechanism includes a pump mechanism for providing lubricating fluid and a delivery pipe 2. One end of the delivery pipe 2 is connected to the pump mechanism, and the other end is connected to a lubrication pipe inside the compressor body 1. An automatic on / off valve is provided on the delivery pipe 2 to control the on / off state of the delivery pipe 2.

[0023] In this embodiment, a self-lubricating mechanism installed on the compressor body 1 is used to lubricate the parts inside the compressor body 1 that require lubrication. A pumping mechanism is used to deliver lubricating fluid through the delivery pipe 2 to the lubrication pipes inside the compressor body 1 for lubrication. An automatic on / off valve can automatically control the opening and closing of the delivery pipe 2; the valve opens when needed, allowing lubricating fluid to flow into the lubrication pipes inside the compressor body 1; the valve closes when lubrication is not required.

[0024] In some embodiments of this example, the automatic on / off valve includes a drain plate 3, a magnetically attached movable plate 4, and an on / off control mechanism. The drain plate 3 is fixedly disposed inside the liquid delivery pipe 2. The magnetically attached movable plate 4 is slidably disposed inside the liquid delivery pipe 2 and is always in contact with the drain plate 3. The drain plate 3 has a plurality of first through holes 5, and the magnetically attached movable plate 4 has a plurality of second through holes 6. Under the control of the on / off control mechanism, the second through holes 6 can be connected or disconnected from the first through holes 5 in a one-to-one correspondence. When the second through hole 6 is connected to the first through hole 5, the lubricating fluid in the liquid delivery pipe 2 can flow into the lubrication pipe inside the compressor body 1 in sequence through the first through hole 5 and the second through hole 6.

[0025] In this embodiment, the on / off control mechanism is used to control the position of the magnetically attracted movable plate 4 in the liquid delivery pipe 2, thereby controlling the communication state between the second through hole 6 and the first through hole 5, so as to control the flow state of the lubricating fluid.

[0026] In some embodiments of this example, the on / off control mechanism includes a spring 7, an electromagnet 8, and a controller with a timing function. The electromagnet 8 is disposed on the liquid delivery pipe 2 and located at one end of the magnetically attracted movable plate 4. The controller with the timing function is electrically connected to the electromagnet 8. A fixed seat 9 is disposed on the liquid delivery pipe 2. The fixed seat 9 is located at the end of the magnetically attracted movable plate 4 away from the electromagnet 8. One end of the spring 7 is connected to the magnetically attracted movable plate 4, and the other end is connected to the fixed seat 9.

[0027] In this embodiment, a controller with a timing function (not shown in the figure) is used to control the movement of the electromagnet 8, and the interval time for each lubrication can be set according to the actual working conditions. When lubrication is required, the controller with the timing function controls the electromagnet 8 to be energized. At this time, the electromagnet 8 is magnetic, and the magnetically attracted movable plate 4 moves towards the electromagnet 8 under the action of the magnetic attraction of the electromagnet 8, overcoming the elastic force of the spring 7, until the magnetically attracted movable plate 4 can no longer move. At this time, the second through hole 6 and the first through hole 5 are connected one-to-one, and the lubricating fluid in the liquid delivery pipe 2 can flow into the lubrication pipe inside the compressor body 1 through the first through hole 5 and the second through hole 6 in sequence. When lubrication is completed, the controller with the timing function de-energizes the electromagnet 8. At this time, the electromagnet 8 is demagnetized, and the magnetically attracted movable plate 4 moves away from the electromagnet 8 under the action of the elastic force of the spring 7, until it can no longer move. At this time, the second through hole 6 and the first through hole 5 are offset and not connected, so the lubricating fluid in the liquid delivery pipe 2 cannot flow into the lubrication pipe inside the compressor body 1 through the first through hole 5 and the second through hole 6.

[0028] In some embodiments of this example, the liquid delivery pipe 2 is provided with a sliding groove 10 adapted to the magnetically pleasing movable plate 4, and the magnetically pleasing movable plate 4 is slidably disposed in the sliding groove 10; a limiting ring 11 is provided in the sliding groove 10, and the limiting ring 11 is located between the fixed base 9 and the magnetically pleasing movable plate 4; the spring 7 passes through the limiting ring 11 and is connected to the magnetically pleasing movable plate 4.

[0029] In this embodiment, the slide groove 10 is used to install the magnetically movable plate 4, allowing the magnetically movable plate 4 to move within the slide groove 10. The limiting ring 11 is used to limit the displacement of the magnetically movable plate 4. After lubrication is completed, the controller with a timing function de-energizes the electromagnet 8. At this time, the electromagnet 8 is demagnetized, and the magnetically movable plate 4 moves away from the electromagnet 8 under the action of the spring force of the spring 7 until it abuts against the limiting ring 11. At this time, the second through hole 6 and the first through hole 5 are misaligned and not connected. Therefore, the lubricating fluid in the liquid delivery pipe 2 cannot flow into the lubrication pipe inside the compressor body 1 through the first through hole 5 and the second through hole 6.

[0030] In some embodiments of this example, a through hole 12 is provided at the bottom of the chute 10, and the through hole 12 is connected to the interior of the liquid delivery pipe 2.

[0031] In this embodiment, as the magnetically movable plate 4 moves within the slide groove 10, lubricating fluid may seep from between the magnetically movable plate 4 and the drain plate 3 to both ends of the magnetically movable plate 4, that is, seep into the space between the magnetically movable plate 4 and the electromagnet 8, or into the space between the limiting ring 11 and the magnetically movable plate 4. If too much lubricating fluid accumulates in this space, it will affect the displacement of the magnetically movable plate 4, thereby affecting the blocking effect of the magnetically movable plate 4. A through hole 12 is opened at the bottom of the slide groove 10, which is connected to the interior of the liquid delivery pipe 2. The lubricating fluid in this space can flow away through the through hole 12 so as not to affect the movement of the magnetically movable plate 4.

[0032] In some embodiments of this example, the pump mechanism includes a water pump 13, an inlet pipe 14, and a storage tank 15 disposed on the compressor body 1. The water pump 13 is disposed on the storage tank 15 and has an inlet port 16 and an outlet port 17. One end of the inlet pipe 14 is connected to the inlet port 16, and the other end is connected to the interior of the storage tank 15. The end of the delivery pipe 2 away from the compressor body 1 is connected to the outlet port 17.

[0033] In this embodiment, the pump mechanism is designed in this way to facilitate the delivery of lubricating fluid through the delivery pipe 2 to the lubrication pipe inside the compressor body 1 for lubrication.

[0034] In some embodiments of this example, a corrugated pipe section 18 is provided on the liquid delivery pipe 2.

[0035] In this embodiment, because the bellows has better elasticity than ordinary pipes, it can twist and bend without breaking or deforming when subjected to external force. When the automatic on / off valve needs to be replaced, the liquid delivery pipe 2 can be in a bent state, which facilitates the disassembly and installation of the automatic on / off valve.

[0036] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A self-lubricating compressor, comprising a compressor body (1), characterized in that, The compressor body (1) is provided with a self-lubricating mechanism, which includes a pump mechanism for providing lubricating fluid and a delivery pipe (2). One end of the delivery pipe (2) is connected to the pump mechanism, and the other end is connected to the lubrication pipe inside the compressor body (1). The delivery pipe (2) is provided with an automatic on / off valve for controlling its own on / off state.

2. A self-lubricating compressor according to claim 1, characterized in that, The automatic on / off valve includes a leak plate (3), a magnetically attached movable plate (4), and an on / off control mechanism. The leak plate (3) is fixedly installed inside the liquid delivery pipe (2). The magnetically attached movable plate (4) is slidably installed inside the liquid delivery pipe (2) and is always in contact with the leak plate (3). The leak plate (3) has several first through holes (5), and the magnetically attached movable plate (4) has several second through holes (6). Under the control of the on / off control mechanism, the second through holes (6) can be connected to or not connected to the first through holes (5) in a one-to-one correspondence. When the second through hole (6) is connected to the first through hole (5), the lubricating fluid in the liquid delivery pipe (2) can flow into the lubrication pipe inside the compressor body (1) in sequence through the first through hole (5) and the second through hole (6).

3. A self-lubricating compressor according to claim 2, characterized in that, The on / off control mechanism includes a spring (7), an electromagnet (8), and a controller with a timing function. The electromagnet (8) is mounted on the liquid delivery pipe (2) and located at one end of the magnetically aspirated movable plate (4). The controller with the timing function is electrically connected to the electromagnet (8). A fixed seat (9) is mounted on the liquid delivery pipe (2). The fixed seat (9) is located at the end of the magnetically aspirated movable plate (4) away from the electromagnet (8). One end of the spring (7) is connected to the magnetically aspirated movable plate (4), and the other end is connected to the fixed seat (9).

4. A self-lubricating compressor according to claim 3, characterized in that, The liquid delivery pipe (2) has a groove (10) adapted to the magnetic suction movable plate (4), and the magnetic suction movable plate (4) is slidably disposed in the groove (10); a limiting ring (11) is provided in the groove (10), and the limiting ring (11) is located between the fixed seat (9) and the magnetic suction movable plate (4); the spring (7) passes through the limiting ring (11) and is connected to the magnetic suction movable plate (4).

5. A self-lubricating compressor according to claim 4, characterized in that, The bottom of the chute (10) is provided with a through hole (12), which is connected to the interior of the liquid delivery pipe (2).

6. A self-lubricating compressor according to claim 1, characterized in that, The pump mechanism includes a water pump (13), an inlet pipe (14), and a storage tank (15) disposed on the compressor body (1). The water pump (13) is disposed on the storage tank (15). The water pump (13) is provided with an inlet (16) and an outlet (17). One end of the inlet pipe (14) is connected to the inlet (16), and the other end is connected to the interior of the storage tank (15). The end of the delivery pipe (2) away from the compressor body (1) is connected to the outlet (17).

7. A self-lubricating compressor according to claim 6, characterized in that, The liquid delivery pipe (2) is provided with a corrugated pipe section (18).