JPS6148700A - Automatic oil exchanger for car - Google Patents

Abstract

PURPOSE:To permit the automatic discharge of old liquid and pouring of new oil by inserting a hose into a new-oil tank and setting a vacuum pipe into the hole on an oil level gauge and then turning-ON a switch. CONSTITUTION:After sufficiently pouring oil into a new-oil tank 30, an oil level gauge is pulled-off, and a vacuum pipe 1 is pushed-into the insertion hole of the level gauge until the vacuum pipe contacts with a collar 9, and after a feeding and discharging pipe 2 is pushed-in until it reaches the bottom of the tank on a car, an electric power source is connected. Then, a sensor 7 operates to revolve an electric motor 12 and a pump 17, and old oil is discharged into a discharged- liquid tank 22 through the feeding and discharging pipe 2, sensor chamber 8, transfer pipe 19, suction hole 18, discharge hole 20, and a discharge hole 21. When discharge is completed, the sensor 7 operates, and new oil is supplied into the oil tank through a feeding pipe 29 and the feeding and discharging pipe 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is designed to automate the replacement of engine oil, automatic transmission fluid, and power steering oil in automobiles. Next, to explain an example, FIG. 1 is a wiring and piping diagram, the bold line indicates the piping diagram, and FIG. 2 is an enlarged view of the area around the vacuum pipe. First, a supply/discharge pipe 2 with an outer circumference that has a space between it and the inner circumference of a vacuum pipe l, which has an outer circumference that can be inserted into an insertion hole of an oil gauge of an automobile, is made longer than the vacuum pipe l and inserted, and one end is inserted into the three-way qI3. A sliding contact member 4 is connected to the vacuum pipe and one end of the vacuum pipe is slidable on the outer periphery of the supply/discharge pipe.
The other end is open to the outside air through an open part 5, and a transfer pipe 6 is provided on the side of the sliding contact member, which communicates with the vacuum chamber 8' of the vacuum sensor 7' and is slidable on the outer periphery of the vacuum pipe. A collar 9 is provided so that it can be locked with a screw lO. - Next, the lead wire 13 of the power supply 11 and the electric motor 12
A changeover switch 15 is provided between the vacuum sensor 41 and the shaft 14 so as to change the switch depending on the degree of vacuum. The other side of the changeover switch is electrically connected to the time switch 16 through a lead wire 13'. The electric motor is used to rotate the pump 17, and the suction hole 1B of the pump is connected to one side of the three-way pipe 3 through the suction pipe 19, and the discharge hole 20 is connected to a transparent visual hole in the middle. It communicates with a drain tank 22 through a pipe 23 and a discharge pipe 21 .

Furthermore, the lead wire 13 is connected via a time switch to another electric motor 12', which is connected to the pumps 24 and 25.
The discharge hole 26 of the pump 24 is connected to the other side of the three-way tube 3 through a supply pipe 27, and the suction hole 28 has a transparent viewing tube 23 in the middle.
It communicates with the inside of the new oil tank 3° through a new oil suction pipe 29 provided with .

The suction hole 31 of the other pump 25 communicates with the vacuum chamber 8' of the vacuum sensor 7' in the example through a transfer pipe 6'.

Note that 32 is a check valve and 33 is a filter. 34 more
is a vacuum sensor that sounds a buzzer at the lamp base of 35 when there is no new oil in the new oil tank.
6 is a lamp and 37 is a buzzer.

With the above structure, fill the new oil tank 30 with enough oil, then remove the automobile oil level gauge, and compare the length of the level gauge with the upper level stamped by the automobile manufacturer from the brim of the level gauge. After fixing the opening part 5 of the vacuum pipe 1 and the collar 9 with the same length with the screws 10, push the vacuum pipe into the insertion hole of the automobile oil level gauge until it touches the collar 9, and then Push the pump 17 so that the pipe 2 reaches the bottom of the automobile oil tank.
is rotated to drain the liquid into the drain tank 22 via the supply/discharge pipe 2, the three-way pipe 3, the filter 33, the check valve 32', the sensor chamber 8, the transfer pipe 19, the suction hole 18, the discharge hole 20, and the discharge pipe 21. Drain old car oil inside. When the discharge is finished, the sensor 7 is activated, and the A part of the time switch 16 is activated, and the electric motor 1 is activated.
2', when the pumps 24 and 25 are rotated, new oil passes through the suction supply pipe 29, the suction hole 28, the discharge hole 26, the supply pipe 27, the three-way pipe 3, and the supply/discharge pipe 2, and then enters the oil tank of the automobile. At this time, the oil is supplied to the automobile engine〉1
[? If you leave it as it is, it will overflow outside the car oil tank, but the suction of the pump 25 rotating in this gap Outside air is sucked and discharged from the opening 5 of the vacuum pipe 5 with 31 holes, but when the supply of new oil continues and the oil level in the car tank reaches the opening of the vacuum pipe 5, the vacuum sensor When the vacuum level of the vacuum chamber 8' at 7' rises, the switch 15' is turned off by the shaft 14', the work end signal lamp lights up, and the buzzer sounds.As described above, Insert the hose into the new oil tank, set the vacuum pipe in the hole for the car oil level gauge, and turn on the switch to drain the old car fluid, inject new oil for cleaning, and drain the cleaning oil. Finally, when the new oil injection reaches the level specified by the car manufacturer, it automatically stops and finishes the work.
It contributes to the safety of automobile operation by being able to automatically and reliably ((,) efficiently.

[Brief explanation of drawings]

This figure is a drawing of an embodiment of the present invention, FIG. 1 is a diagram of its wiring and piping, and FIG. 2 is an enlarged view of the area around the vacuum pipe. l...Vacuum W Double supply m pipe 7...Vacuum sensor 12.12'...Electric motor 16.
...Time switch 17.2 to 25...Pump position 1 Figure

Claims (1)

[Claims] On the outer periphery of the supply/discharge pipe, one end of which communicates with the three-way pipe, one end of the vacuum pipe is slidably and tightly locked to the outer periphery of the supply/discharge pipe, and the other end of the vacuum pipe is released, and a transfer pipe that communicates with a vacuum sensor that is linked to an open/close switch is provided in the middle of the vacuum pipe. A collar can be slidably locked on the outer periphery of the vacuum pipe, and a plurality of pumps are connected to an electric motor connected to a time switch so that the suction hole of pump No. 1 and the discharge hole of No. 2 are connected first. An automatic oil change machine for an automobile, characterized in that the third suction hole is connected to the first three-way pipe, and the third suction hole is connected to the first vacuum sensor.