JP3081410B2 - Engine oil changer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for replacing engine oil of a vehicle, which is installed in a gasoline filling station or the like.

[0002]

2. Description of the Related Art Conventionally, after an oil change operation, the amount of waste oil in a waste oil can measured by a waste oil measuring device is equal to or greater than a predetermined value, or the amount of new oil measured by the new oil measuring device is equal to or less than a predetermined value. If there is, just before the next oil change operation is about to start, the waste oil in the waste oil can is full,
Alternatively, the operator was notified that the new oil in the new oil can was empty by a lamp, a buzzer, or the like.

[0003]

However, it takes a considerable amount of time to discharge waste oil from a waste oil can in the apparatus, to replenish new oil cans with new oil cans, or to replace them with new oil cans containing new oil. If the notification is just before starting the next oil change operation as described above, the customer who wants to change the oil will have to wait, or even more when the gas station is busy. If so, they would have to wait for another customer. Further, it was not possible to quickly and accurately determine what kind of notification was made only by the notification of the lamp or the buzzer.

[0004] It is an object of the present invention to provide an engine oil change device which can solve the above problems.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided:
In an engine oil changer equipped with a waste oil can for storing waste oil and a waste oil measuring device for measuring the amount of waste oil in the waste oil can, a sound generating means for generating a sound for urging the discharge of waste oil; Later, and when the power is turned on, if the amount of waste oil in the waste oil can measured by the waste oil measuring device is equal to or greater than the amount that the waste oil can is expected to be full during the next oil change, the sound generating means And a control means for outputting the sound from the control unit. Further, the present invention provides an engine oil changing device including a new oil can for storing new oil inside a box, and a new oil measuring device for measuring the amount of new oil in the new oil can. A sound generating means for generating a sound prompting the replenishment of oil, and a new oil amount in the new oil can measured by the new oil measuring device at the end of the oil change and at power-on, during the next oil change. The gist of the invention is to provide a control means for outputting the sound from the sound generating means when the oil can is empty or less.

[0006]

According to the present invention, the worker is notified by voice, so that the worker can know exactly what to do.

[0007] Further, the drainage of the waste oil in the apparatus and the replenishment of the new oil can be performed when the oil change operation is completed and when the power is turned on again.

[0008]

An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an overall configuration diagram of an engine oil changing apparatus according to an embodiment of the present invention. A new oil can 2a for storing a plurality of types of new oil for injection in a box 1 on the new oil side. , 2b, 2
c, the new oil measuring devices 3a, 3
b, 3c, one end is opened in the new oil cans 2a, 2b, 2c, and the other end is connected to a forward / reversely rotatable new oil pump 5 via solenoid valves 4a, 4b, 4c. Pipes 6a, 6
b, 6c, a pipe 9 having one end connected to a pump 5 for new oil, and the other end connected to a hose 8 for new oil injection outside the box 1 via an electromagnetic valve 7; The other end is connected to the pump 5, and the other end is connected to the new oil injection hoses 12a, 12b, 12c and the new oil replenishing hose 13 connecting coupler 14 via the solenoid valves 10a, 10b, 10c and 11 outside the box 1. Pipe 1
Pipes 5a, 15b, 15c and 16 are provided.

On the waste oil side, a waste oil can 17 for storing the recovered waste oil in the box 1 is disposed on a waste oil measuring device 18 such as a load cell, and one end is opened in the waste oil can 17. Pipe line 20 whose end is connected to a waste oil pump 19 that can rotate forward and reverse.
And one end connected to a waste oil pump 19, and the other end via a solenoid valve 21, a strainer 22 and a solenoid valve 23, respectively.
Pipes 27 and 28 connected to a waste oil extracting hose 24 and a waste oil discharging hose 25 connecting coupler 26 outside the box 1 are provided.

Further, new oil injection hoses 12a, 12b,
A nozzle dedicated for injection 29 is connected to the tip of 12c, and a nozzle 30 for both sampling and injection is connected to the tips of the new oil injection hose 8 and the waste oil extraction hose 24.

Reference numerals 31, 32, and 33 denote an operation unit for performing oil change, a display for displaying an oil amount, and a speaker for generating sound, provided above the box body 1, respectively. Although not shown, the operation unit 31 includes switches for selecting each process such as automatic, new oil injection, and draining of waste oil, an oil type selection switch for selecting a type of new oil, a nozzle selection switch for selecting a nozzle to be used, and a waste oil discharge switch. , A new oil refill switch, a numeric keypad for setting a new oil injection amount, a start / stop switch, and other switches.

FIG. 2 is a block diagram showing a control system of the present apparatus. The box 1 is provided with a control device 34 using a conventionally known microcomputer or the like, and the new oil measuring devices 2a, 2b, 2c. , Waste oil measuring device 18, operation unit 31
Input signals from the respective switches are introduced into the control device 34, and as control signals, the electromagnetic valves 4a, 4b, 4c, 7, 1
0a, 10b, 10c, 11, 21, 23, pump 5 for new oil, pump 19 for waste oil, display 32, speaker 33
Is output to execute engine oil change.

Next, the usage and operation will be described with reference to FIG.

To change the engine oil, a process to be executed is selected by a process selection switch in the operation unit 33 (step 1), and a new oil to be injected is selected by an oil type selection switch (step 2). Further, the nozzle to be used is selected by the nozzle selection SW (step 3). In this case, the automatic process and the new oil in the new oil can 2a and the sampling and injection nozzle 3
Description will be made assuming that 0 is selected. First, insert the sampling and injection nozzle 30 into the oil pan of the car,
A start switch in the operation unit 33 is operated (step 4). Then, a control signal is output from the control device 34 which has received the signal from each of the switches, the solenoid valve 21 is opened, the waste oil pump 19 is driven to rotate forward (step 5), that is, the waste oil extracting operation is started, The waste oil is discharged into the waste oil can 17 via the sampling and injection nozzle 30, the waste oil removal hose 24, the pipe 27, and the pipe 20.

When the amount of waste oil W1 in the waste oil can 17 measured by the waste oil measuring device 18 is substantially unchanged (step 7), a control signal is output from the control device 34, the valve 21 is closed, and the waste oil is closed. The pump 19 is stopped (step 8), and the draining of the waste oil is terminated. However, the amount of waste oil W1 in the waste oil can 17 is a predetermined amount W2 even during the draining (the remaining 5 liters so as not to be full during the current draining). It is determined whether or not it is greater than or equal to) (Step 6). If W1 is greater than or equal to W2, the sound A (please discharge waste oil, etc.) registered in advance in the control device 34 is output from the speaker 33. It is also possible to output the information only once (steps 9 and 10) to notify the worker that the waste oil can 17 is almost full of waste oil. The reason why the sampling is performed only once is, as described above, that the waste oil can 17 is not filled in this time, so that the worker who receives the notification does not need to immediately stop the sampling operation. This is because of the consideration.

Further, since this step is an automatic step and the new oil in the new oil can 2a is selected, a control signal is continuously output from the controller 34, the solenoid valves 4a and 7 are opened, and the new oil The pump 5 is driven to rotate forward (step 11), that is, the new oil injection operation is started, and the new oil flows through the pipe 6a, the pipe 9, the new oil injection hose 8, and the sampling and injection nozzle 30 to the oil. Infused into bread.

When the new oil amount W5 in the new oil can 2a measured by the new oil measuring device 3a becomes equal to the waste oil extraction amount W6 (step 13), a control signal is output from the control device 34, and the valve 4a, 7 is closed, the new oil pump 5 stops (step 14), and the injection of the new oil is terminated. The amount of the new oil in the new oil can 2a even during the injection as in the case of draining the waste oil. It is determined whether or not W3 is equal to or less than a predetermined amount W4 (when the remaining amount is about 5 liters so as not to become empty during the current injection) (step 12). If W3 is equal to or less than W4, it is registered in advance in the control device 34. Voice B
(Please add new oil, etc.) from speaker 33 to 1
It is also possible to output it only once (steps 15 and 16) and to notify the operator that the new oil in the new oil can 2a is almost empty.

Thereafter, it is determined whether the waste oil amount W1 in the waste oil can 17 is equal to or more than a predetermined amount W2 and whether the new oil amount W3 in the new oil can 2a is equal to or less than a predetermined amount W4 (step 17). ,
19), if W1 is equal to or greater than W2 and W3 is equal to or less than W4, the sounds A and B registered in advance in the control device 34 are sequentially output from the speaker 33 (step 1).
8, 20) Notify the worker that the waste oil can 17 is almost full of waste oil and that the new oil in the new oil can 2a is almost empty.

Even if the power was turned off due to the inability to discharge waste oil or replenish new oil within the same day due to the notification of the closing time of business hours, the time immediately before, etc. When the power is turned on at a time, it is determined as an initial operation whether or not W1 is equal to or greater than W2 and whether or not W3 is equal to or less than W4. If W1 is equal to or greater than W2 and W3 is equal to or less than W4, the control device 34 Since the sound A or the sound B is output (step 29), the worker who has heard the sound may discharge waste oil or replenish new oil.

Next, the operator who has completed the oil change, first discharges the waste oil in the waste oil can 17 by using the connecting coupler 26.
Is connected to a waste oil discharging hose 25, and the end thereof is inserted into an empty can outside the apparatus to operate the waste oil discharging SW (step 21). Then, a control signal is output from the control device 34,
The solenoid valve 23 is opened, the waste oil pump 19 is driven in reverse (step 22), that is, the waste oil discharge operation is started, and the waste oil in the waste oil can 17 passes through the pipe 20, the pipe 28, and the waste oil discharge hose 25. Then, it is discharged into the empty can. When the amount W1 of the waste oil in the waste oil can 17 measured by the waste oil measuring device 18 is not substantially changed soon (step 23), the control device 34.
Outputs a control signal, the solenoid valve 23 is closed, the waste oil pump 19 is stopped (step 24), and waste oil discharge is terminated.

Further, in order to replenish the new oil in the new oil can 2a, a new oil replenishing hose 13 is connected to the connecting coupler 14, and the tip of the hose is inserted into the new oil can outside the apparatus. The replenishment switch is operated (step 25). Then, the control device 34
, The solenoid valves 4a and 11 are opened, the new oil pump 5 is driven in reverse (step 26), that is, the new oil replenishment operation is started, and the new oil in the new oil can outside the device is discharged. New oil refill hose 13, line 16, line 9, line 6a
Is discharged into the new oil can 2a. When the new oil amount W3 in the new oil can 2a measured by the new oil measuring device 3a eventually becomes substantially equal to the new oil storage amount W7 of the new oil can 2a (not particularly shown, the new oil amount in the new oil can outside the device). This is not the case when the oil amount is smaller than the new oil storage amount of the new oil can 2a, and may be when the new oil amount W3 measured by the new oil measuring device 3a has almost no change (step 27). Control device 34
Output a control signal, the solenoid valves 4a and 11 are closed, the new oil pump 5 is stopped (step 26), and the replenishment of the new oil is terminated.

In this embodiment, only the automatic process is described. However, the present invention can be similarly applied to the case where the waste oil is extracted and the new oil is injected alone, and the same effect can be obtained. Can be Also, if the next step is performed despite the sound output, an error occurs during the step, and the valve and the pump are stopped, which is a well-known technique in the related art. Is omitted.

[0024]

As described above, according to the present invention, the operator is notified by voice that the waste oil can is almost full or the new oil in the new oil can is almost empty. The user can accurately grasp the waste oil amount state and the new oil amount state in the apparatus. In addition, to notify the operator when the oil change operation is completed and when the power is turned on again, the operator must discharge the waste oil from the waste oil can in the device or add new oil to the new oil can between the next oil change work. If the sound was heard immediately before the end of business hours, the operator turned off the power to discharge waste oil or replenish new oil the next day. Also, if the power is turned on the next day, it will be notified by voice again, so at this time it is only necessary to discharge waste oil or replenish new oil, so that efficient oil change work can be performed without waiting for customers. Become.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an engine oil changing device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a control system of the device.

FIG. 3 is a flowchart showing the operation of the apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box 2a-2c Waste oil can 3a-3c New oil measuring device 17 Waste oil can 18 Waste oil measuring device 33 Speaker 34 Control device

Claims (2)

(57) [Claims] 1. An engine oil changing device having a waste oil can for storing waste oil inside a box and a waste oil measuring device for measuring the amount of waste oil in the waste oil can. The generated sound generating means and the amount of waste oil in the waste oil can measured by the waste oil measuring device after completion of the oil change and when the power is turned on is the amount that the waste oil can is expected to be full during the next oil change. In the above case, a control means for outputting the sound from the sound generation means is provided. 2. An engine oil changing device, comprising: a new oil can for storing new oil inside a box; and a new oil measuring device for measuring the amount of new oil in the new oil can. Voice generating means for generating a voice prompting replenishment of the oil, and after the oil change is completed and when the power is turned on, the amount of the new oil in the new oil can measured by the new oil measuring device is changed during the next oil change. An engine oil changing device, comprising: a control unit that outputs the sound from the sound generation unit when the amount of the can is equal to or less than an expected amount.