JPS6242233Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is an air compressor that has a compressor body, a sealed chamber containing a lubricating oil to be supplied to the compressor body, and an oil level gauge attached to the chamber. This relates to automatic refueling equipment for aircraft.

Conventionally, when lubricating oil is built into the chamber together with the air compressor, the lubricating oil is added into the chamber by the amount of lubricating oil consumed during operation while checking the oil level gauge. Therefore, the oil level gauge is regularly checked and the oil level is refilled to the upper limit before it falls below the lower limit. Therefore, if the oil level gauge is not checked regularly, the oil level will fall below the lower limit and lubricating oil will no longer be sent to the sliding parts of the compressor, causing the piston to seize in the cylinder or other malfunctions. It was the cause.

Further, since the width between the upper limit and the lower limit is generally 1 to 2 cm, even if lubricating oil is replenished to the upper limit, the period until the next replenishment is short and frequent replenishment is required.
Therefore, always be careful not to check the oil level gauge, and use a funnel etc. every time you refuel to prevent oil from leaking around the oil filler port. Containers, funnels, etc. had to be stored, and each time, hands got dirty with oil, making them difficult to handle.

The present invention was developed in view of the above situation, and eliminates the need for frequent oil level inspections and oil replenishment, eliminates the need for the compressor to run out of lubricating oil, and eliminates the need to get hands and surrounding areas dirty. The object of the present invention is to provide an automatic oiling device for an air compressor that can improve handling.

The automatic replenishment device for an air compressor of the present invention includes a compressor body, a sealed chamber containing lubricating oil to be supplied to the compressor body, and an oil level gauge attached to the chamber. an oil supply pipe fixed to the chamber, the lower end of which is opened between the upper and lower limits of the oil level of the oil level gauge, and one end of a soft tube communicated with the upper end opening; and a seal formed of a transparent or translucent material. The oil outlet of the mouth is placed at the bottom and communicates with the other end of the soft tube. Based on the weight of the replenishment oil inside, the upper side is supported so as to lean against the chamber side, and is detachable so as to stand upright as the replenishment oil decreases. A cartridge-type oil container is attached to the chamber, and the oil container is attached to the outer wall of the chamber and displays a warning that the supply oil in the oil container has decreased in conjunction with the oil container being placed upright due to a decrease in the amount of oil in the oil container. This means that there is a means to do so.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The automatic oil supply system for an air compressor according to the present invention will be explained below using an embodiment with reference to FIG. FIG. 1 shows a cross-sectional view of the main parts. Reference numeral 1 denotes a chamber. Inside the chamber 1, a compressor main body 2 and a lubricating oil 3 supplied to the compressor main body 2 through an oil intake port 4 are built and sealed. 5 is the air intake port, 6 is the discharge port, and 7 is the chamber 1.
This is an oil level gauge for the lubricating oil 3 attached to the end face of the introduction tube 8. Reference numeral 9 is an oil supply pipe that penetrates and is fixed to the highest part of the upper surface of the introduction tube 8, and has a lower end opening located between the upper and lower limits of the lubricating oil 3, and one end of a soft tube 10 is communicated with the upper end. Reference numeral 11 denotes a cartridge-type oil container made of a transparent or translucent material, filled with replenishing oil 12, and having a sealing opening 15 cut so that it can be inserted and detached into the upper end opening of the soft tube 10 in an inverted shape. It's summery. And oil container 11
is formed in a cylindrical shape, and the end opposite to the side where the sealing port 15 is formed is connected to the chamber via a holding part consisting of an annular holding part 16 and a support spring plate 13 provided radially protruding from the circumferential surface of the annular holding part 16. It is tilted and supported so that it leans on 1. In this state, when a large amount of make-up oil 12 is stored in the oil container 11, the support spring plate 13 is bent and leans against the chamber 1 based on the weight, and when the weight becomes lighter, the oil container 11
is pushed by the support spring plate 13, and the support spring plate 13 changes from a curved shape to a flat plate shape, and the oil container 11 becomes an upright shape. Reference numeral 14 denotes an alarm switch, which is open when the support spring plate 13 is tilted by the weight of the oil container 11 and leans against the chamber 1, and the weight of the oil container 11 becomes lighter and the oil container 11 becomes the support spring plate. 13 to close the circuit when it is in an upright state.

Inside the chamber 1, lubricating oil 3 is fed into the compressor main body 1 from an oil intake port 4 for lubrication and cooling, and air is sucked in from an air intake port 5, compressed, and discharged from a discharge port 6 to operate the compressor. Ru. When the lubricating oil 3 drops even slightly from the proper position (generally the center position) of the oil level gauge 7, the lower end of the oil supply pipe 9 separates from the oil level and air passes through the oil supply pipe 9 and the soft tube 10 and enters the oil container 11. The replenishing oil 12 flows into the introduction cylinder 8 by that amount, and the oil level rises to the appropriate position of the oil level gauge 7, and then stops. In addition,
This operation is repeated each time the oil level of the lubricating oil 3 decreases. When the supply oil 12 in the oil container 11 decreases and the time to replace the oil container 11 approaches, the oil container 11 is raised upright by the tension of the support spring plate 14, and the alarm switch 13 is turned on, causing an alarm. A light signal is emitted to notify that the replenishment oil 12 is nearing the sky. The structure in which the alarm switch 13, the support spring plate 14, and the oil container 11 are installed in an inclined manner forms a means for displaying a warning that the supply oil in the oil container 11 has decreased and the time has come to replace the oil container 11. There is.

When the alarm is displayed, the oil container 11 is transparent or translucent, so the remaining amount can be checked at a glance.
A small amount of make-up oil 12 remaining in the oil container 11 flows into the chamber 1 in its entirety when the oil container 11 is pulled out from the flexible tube 10, and the oil container 11 can be completely emptied and thrown away. Also, the following oil container 11
When installing, by cutting near the sealing port 15 and installing it, it is completely possible to avoid getting your hands dirty with oil or making them dirty with oil.

In this way, the air compressor automatic oil supply system of this embodiment eliminates the need to check the oil level on the oil level gauge once the cartridge-type oil container is installed until a warning is issued when the oil container is nearly empty. Since it is only necessary to replace the oil container, it is possible to prevent the air compressor from running out of lubricating oil and causing failure. Therefore, there is no need to check the oil level or frequently replenish oil. Also,
The amount of replenishment oil remaining in the oil container can be easily checked, and there is no chance of getting your hands dirty with oil or scattering oil when replacing the oil container.

As described above, the automatic oiling device for an air compressor of the present invention eliminates the need for frequent oil level checks and oil replenishment, and prevents the compressor from running out of lubricating oil.
This has the effect of significantly improving the ease of handling without getting your hands or surrounding areas dirty with oil.

[Brief explanation of drawings]

FIG. 1 is a sectional view of essential parts of an embodiment of an automatic oil supply device for an air compressor according to the present invention, and FIG. 2 is a front view of the oil container shown in FIG. 1. 1... Chamber, 2... Compressor body, 3... Lubricating oil, 7... Oil level gauge, 9... Oil supply pipe, 10... Soft tube, 11... Oil container, 12... Supply oil,
13...Alarm switch, 14...Support spring.

Claims (1)

[Scope of utility model registration request] A compressor body, a sealed chamber containing a compressor body and lubricating oil to be supplied to the compressor body, and an oil level gauge attached to the chamber, wherein the oil level gauge is fixed to the chamber. an oil supply pipe whose lower end is opened between the upper and lower limits of the oil level, and one end of a soft tube is communicated with the upper end opening; and an oil supply pipe whose sealing port is made of a transparent or translucent material and whose oil outlet is located at the lower part of the pipe. a cartridge-type oil container that is connected to an end and is supported such that its upper side leans against the chamber side based on the weight of the replenishment oil therein, and is detachably attached to the chamber so as to stand upright as the replenishment oil decreases; means attached to the outside of the oil container to display an alarm indicating that the supply oil in the oil container has decreased in conjunction with the uprighting of the oil container due to a decrease in the amount of oil in the oil container. Automatic lubrication device for compressor.