JP3440193B2 - Waste oil treatment equipment for vehicle lifts - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle lift waste oil treatment apparatus for easily discharging waste oil such as engine oil from a vehicle being lifted up during maintenance work of an automobile.

[0002]

2. Description of the Related Art Conventionally, a waste oil receiver called a drain cart is set under a lifted vehicle.

[0003]

In the conventional method using the drain cart, when the lift is buried when it is lowered, a recess is formed on the floor surface of the place where the support base of the lift is housed. Therefore, it may not be possible to set the drain cart directly under the drain depending on the position of the oil pan of the vehicle, and it takes time to discharge the drain cart, and the wheels of the drain cart fall into the recesses and the waste oil is spilled over the surrounding area. There was a problem such as getting dirty.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a waste oil treatment device for a vehicle lift, in which a waste oil receiver is provided on a board or a stand of a lift to easily discharge waste oil. .

[0005]

In order to achieve the above object, the present invention provides a rail on a support base of a vehicle for a vehicle lift , and engages a waste oil receiver on the rail so as to be movable in the front-rear direction. Open the drain pipe of the waste oil receiver by lowering the lift.
A discharge valve is installed and it flows down from the discharge pipe.
The waste oil is received at the opening of the waste oil pipe and the pump is operated to
It is characterized by discharging to a waste oil tank through a pipe .

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a first embodiment of the present invention.
4 to FIG.

Reference numeral 1 denotes a waste oil treatment device, and 2 denotes a supporting base of a vehicle of a known lift of the panda cliff type. The supporting base 2 consists of a pair of parallel strip-shaped plates, and has a U-shaped cross section inside thereof. The rail 2a formed on is fixed.

Reference numeral 3 denotes a waste oil receiver, and two rollers 3a and 3a are axially fixed to both side surfaces of the waste oil receiver 3, respectively.
a is engaged with the inside of the U-shaped rail 2a to move the waste oil receiver 3 in the front-rear direction of the support pedestal 2 and the waste oil is provided directly below the drain under the vehicle body of the vehicle A on the support pedestal 2. I got to receive it.

The waste oil receiver 3 is formed in a funnel shape and has a wide opening 3b in the upper part and a discharge pipe 3c in the lower part.
A discharge valve 4 is provided in the discharge pipe 3c.

As shown in FIG. 4, the discharge valve 4 comprises a valve body 4b provided in the middle of a projection shaft 4a which is constantly urged downward by a compression coil spring 4c in a discharge pipe 3c. Presses the fixed O-ring 4d against the peripheral edge of the through hole 4e to close the discharge pipe 3c. Incidentally, FIG. 4 shows a state in which the projection shaft 4a is pushed upward and the discharge pipe 3c is opened.

Reference numeral 6 denotes a waste oil pipe. The tip of the waste oil pipe 6 is formed in an opening 5 having a U-shaped cross section in the pit B and receives the waste oil flowing down from the discharge pipe 3c. 6
Is connected to the opening 5 and a waste oil tank 7 buried underground, and a pump 6a driven by a motor 6b is interposed.

Reference numeral 2b is a vehicle entry plate, and C is a hydraulic cylinder for moving the lift up and down.

In FIG. 3, reference numeral 8 denotes a position sensor provided in the pit. As shown in FIG. 1, the position sensor 8 is the support base 2
Has the function of detecting that

Reference numeral 9 denotes a liquid level sensor, and the upper limit liquid level sensor 9a is provided above the opening 5 of the waste oil pipe 6 and has a function of detecting the height of the waste oil accumulated from the waste oil receiver 3. In addition, a lower limit liquid level sensor 9b is provided below the opening 5.

Reference numeral 10 denotes a control unit equipped with a microcomputer, which receives a detection signal detected by the position sensor 8 and the liquid level sensor 9 and operates a motor 6b for driving the pump 6a.

Next, a method of using the first embodiment will be described.

First, the vehicle A is put on the bearing table 2 that is descending on the floor and stopped, and the bearing table 2 is raised to a height suitable for work.

Next, the waste oil receiver 3 provided on the support pedestal 2 is moved to just below the drain of the vehicle A, the drain outlet is opened, and waste oil such as engine oil is discharged to the opening 3b of the waste oil receiver 3. Let

When the discharge work is completed, the discharge port is closed,
After moving the waste oil receiver 3 to a predetermined rear position, the support base 2 is lowered.

When the support base 2 is lowered, the lower end of the projection shaft 4a of the discharge valve 4 provided in the discharge pipe 3c of the waste oil receiver 3 is pushed up by the valve operating plate 4f provided in the pit B and opened. Then, waste oil is discharged from the discharge pipe 3c to the waste oil pipe 6
When the waste oil flows down to the opening 5 of the upper limit liquid level sensor 9a provided above the opening 5 and the waste oil is collected up to the height of the upper limit liquid level sensor 9a, the control unit 10 causes the motor 6b to output a detection signal from the upper limit liquid level sensor 9a. Is driven to pump to the waste oil tank 7 installed underground by the pump 6a, and when the amount of waste oil accumulated in the opening 5 becomes small, the motor 6b is automatically stopped by the detection signal of the lower limit liquid level sensor 9b.

It should be noted that without using the upper and lower limit two sensors,
The presence or absence of waste oil may be detected by two sensors.

Further, when the amount of waste oil accumulated in the opening 5 is between the upper and lower liquid level sensors 9a and 9b, the position sensor 8 detects that the support base 2 is lowered and the control unit 10 is detected. Operates the motor 6b to discharge the waste oil, and when the waste oil decreases to the lower limit liquid level sensor 9b, the motor 6b is automatically stopped by the control unit 10.

As described above, the worker simply moves the waste oil receiver 3 directly below the drain of the vehicle A and moves the waste oil receiver 3 to a predetermined position after the draining work. It can be carried out.

Although not shown, a brake means is provided to prevent the waste oil receiver 3 from moving during work and leaking the waste oil to the outside. The brake means is provided so as to sandwich the roller 3a. Alternatively, a long plate-like member for pressing the roller 3a of the waste oil receiver 3 against the rail 2a may be provided along the rail 2a.

Next, a second embodiment of the present invention will be described with reference to FIG.

The feature of the second embodiment is that the hose 11 is connected to the thin discharge pipe 3c below the waste oil receiver 3 without the discharge valve 4.

The hose 11 has a bellows shape that can be expanded and contracted.
It is connected to the auxiliary tank 12 installed at the bottom of the pit B at the bottom end.

The auxiliary tank 12 communicates with a waste oil tank 7 buried underground by a waste oil pipe 6 and a pump 6a is interposed. Here, since the waste oil is once received by the auxiliary tank 12, a large space is not taken in the lower part of the lift.

Reference numeral 1'denotes a waste oil treatment device and 2 a bearing stand of a known lift truck of the pandagraph type. A position sensor 8 is provided in a pit B, and the bearing stand 2 is the same as in FIG. Has the function of detecting that

A liquid level sensor 9 is provided in the auxiliary tank 12.
The upper limit liquid level sensor 9a is provided above the auxiliary tank 12 and has a function of detecting the height of the waste oil collected from the waste oil receiver 3 and the auxiliary tank 12
A lower limit liquid level sensor 9b is provided in the lower part of the.

The system configuration is the same as that of FIG. 3, and 10 is a control unit equipped with a microcomputer, which receives a detection signal detected by the position sensor 8 and the liquid level sensor 9 and operates a motor 6b for driving the pump 6a. .

Next, a method of using the second embodiment will be described.

First, the vehicle A is put on the bearing table 2 that is descending on the floor and stopped, and the bearing table 2 is raised to a height suitable for the work.

Next, the waste oil receiver 3 provided on the support base 2 is moved to a position directly below the drain of the vehicle A, the drain outlet is opened, and waste oil such as engine oil is discharged to the opening 3b of the waste oil receiver 3. Let

When the discharge work is completed, the discharge port is closed and the support base 2 is lowered.

At this time, waste oil flows from the waste oil receiver 3 to the hose 11
When the waste oil accumulates up to the height of the upper limit liquid level sensor 9a provided on the upper part of the auxiliary tank 12, the control unit 10 causes the motor 6b to output a detection signal from the upper limit liquid level sensor 9a. Is driven to pump to the waste oil tank 7 installed underground by the pump 6a, and when the amount of waste oil accumulated in the auxiliary tank 12 becomes small, the motor 6b is automatically stopped by the detection signal of the lower limit liquid level sensor 9b.

Further, when the amount of waste oil accumulated in the auxiliary tank 12 is between the upper and lower liquid level sensors 9a and 9b,
The position sensor 8 detects that the support base 2 is lowered, and the control unit 10 operates the motor 6b to discharge the waste oil,
Further, when the amount of waste oil decreases to the lower limit liquid level sensor 9b, the motor 6b
Is automatically stopped by the control unit 10.

As described above, the worker simply moves the waste oil receiver 3 to the position directly below the drain of the vehicle A, and the rest of the waste oil processing apparatus 1 is then operated.
The waste oil treatment can be automatically performed by '.

Next, a third embodiment of the present invention will be described with reference to FIG.

The feature of the third embodiment is to use a lift of a bearing stand type which supports the vehicle body from below the vehicle. Below the vehicle body, below the bearing stand 2 ', exhaust gas from the engine is used. Since the pipe, shaft, gearbox, etc. are protruding, the waste oil receiver 3
′ Is provided so as to be lower than the rail 2a ′ of the support base 2 ′.

The method of treating waste oil is exactly the same as that of the first embodiment. Further, if the hose 11 is connected, it becomes the same as that of the second embodiment.

Further, the rail for moving the waste oil receiver provided in the bearing table in the front-rear direction may be provided so as to be suspended from the lower surface of the bearing table.

[0043]

As described above, according to the present invention, since the waste oil receiver is provided on the support base of the vehicle lift so as to be movable in the front-rear direction, the waste oil discharge process can be automatically and simply performed and the periphery of the lift can be achieved. It has an effect that it is not polluted with waste oil.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part.

FIG. 3 is a system configuration diagram.

FIG. 4 is a cross-sectional view of a discharge valve.

FIG. 5 is an explanatory diagram of a second embodiment of the present invention.

FIG. 6 is a cross-sectional view of a main part of a third embodiment of the present invention.

[Explanation of symbols]

1 Waste oil treatment equipment 2 support stand 2a rail 3 Waste oil receiver 4 discharge valve 5 Waste oil pipe opening 6a pump 7 waste oil tank 10 Control unit A vehicle B pit

Continuation of front page (56) Reference JP-A-49-13848 (JP, A) JP-A-7-208139 (JP, A) Actual flat 3-46097 (JP, U) Actual flat 3-49154 (JP , U) Actual Kaihei 6-60712 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60S 5/00

Claims (3)

(57) [Claims] 1. A rail is provided on a support base of a vehicle for a vehicle lift, a waste oil receiver is engaged with the rail so as to be movable in the front-rear direction, and a drain pipe of the waste oil receiver is lowered by the lift.
Provide an open discharge valve and let it flow down from the discharge pipe.
Receive waste oil at the opening of the waste oil pipe and operate the pump to
A waste oil treatment device for a vehicle lift, which discharges to a waste oil tank via an oil pipe . 2. A position sensor for detecting the lowering of the support base, and a control unit for operating the pump according to the detection signal of the position sensor to automatically discharge the waste oil from the waste oil pipe or the auxiliary tank. The waste oil treatment device for vehicle lift according to claim 1 , wherein 3. A liquid level sensor is provided in the waste oil pipe opening or the auxiliary tank, and when the waste oil from the waste oil receiver reaches a predetermined level or more in the waste oil pipe opening or the auxiliary tank, the liquid level sensor The waste oil treatment device for a vehicle lift according to claim 2 , wherein the pump is operated by the control unit in response to a detection signal of the above.