JPH0724629Y2 - Suction pipe device for fuel pump - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to an improvement of a suction pipe device of an oil supply pump which is used when fueling an engine of, for example, a small boat or an agricultural machine.

2. Description of the Related Art Conventionally, an oil supply device of this type has an oil supply pipe of an appropriate length connected to a discharge port of a pump driven by a small motor, and an injector equipped with a hand switch of the motor is attached to a tip of the oil supply device. It is well known that the lower end of the pump is connected to a suction pipe inserted into an oil tank. It is also generally well known that an L-shaped pipe portion having an air supply hole is provided in the middle of the suction pipe and the air supply hole is opened to return the oil in the suction pipe to the oil tank after the oil supply is completed. It is being done.

Problems to be Solved by the Invention As described above, the conventional refueling pump opens the air supply hole after refueling to return the oil in the suction pipe.
In the upper suction pipe ahead of the air supply hole, in the pump,
Oil remains in the oil supply pipe and injecting tool, and it takes time to return this to the oil tank. There was a drawback that it was easy to copy. Therefore, it has been desired to improve the oil supply pipe so that it can be easily removed every time it is used.

In order to solve the problems, the present invention provides an L-shaped pipe portion having an air supply hole in the middle of the suction pipe, and a large-diameter bottomed tubular oil receiver integrally with the L-shaped pipe portion. The upper surface of the oil receiver is covered with an openable / closable lid, a plug body for sealing the air supply hole is provided on the back surface of the lid, and an oil drain hole communicating with the oil tank is formed at the bottom of the oil receiver. The present invention provides a suction pipe device of a characteristic oil supply pump.

Operation The suction pipe device of the present invention configured as described above is configured such that, after the oil pump is used, when the lid of the oil receiver is opened, the air enters through the air supply hole opened from the tight stopper, and the lower suction pipe is inserted into the oil tank. The oil in the pipe descends like the conventional device, but if you insert the tip of the injection tool into the oil receiver that opens greatly by opening the lid and operate the hand switch, the pump will drive the lower part of the suction. The oil remaining at the tip of the pipe is discharged from the injection tool to the oil receiver and returned to the oil tank through the oil discharge hole at the bottom.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

In the figure, 1 is a lower suction pipe that is inserted into a pouring port t of an oil tank T using a 1-toe can, and 2 is a suction port 3 of a pump P.
The upper suction pipe to be connected to 4 and the upper and lower suction pipes 1,
L-shaped pipe part provided in the middle of 2, S is the upper and lower suction pipes 1, 2
And an L-shaped pipe portion 4, a suction pipe 5 is provided with an oil feed pipe of an appropriate length to be connected to the discharge port 6 of the pump P, and 7 is provided with a hand switch 8 of the motor M of the pump P, and the oil feed pipe 5
With a conventionally known injecting device connected to the tip of, the hand switch 8 is actuated by gripping the handle lever 9 to suck up the oil in the oil tank T and supply it to the fuel tank of the engine.
10 is a large-diameter, bottomed cylindrical oil receiver integrally provided so as to surround the L-shaped pipe portion 4, 11 is an air supply hole opened on the top surface of the L-shaped pipe portion 4, and 12 is an air supply hole 11 on the back surface. A lid that covers the open upper surface of the oil receiver 10 by projecting a sealing plug 13 to open and close, 14 is an oil drain hole penetrating the bottom portion 15 of the oil receiver 10, and 16 is an oil receiver as shown in FIG. The oil receiving portion 10 is a ring-shaped fitting portion formed on the back surface of the bottom of the oil container 10. The oil receiving portion 10 can be fixed on the oil tank by fitting the fitting portion 16 into the pouring port t of the oil tank T. Is also located in the spout t together with the lower suction pipe 1.

In this oil supply pump configured as described above, when the lid 12 is opened after the oil supply is completed, the oil receiver 10 is opened, the air supply hole 11 is opened, and the oil in the lower suction pipe 1 is lowered into the oil tank T. Then, when the tip of the refilled injection device 7 is inserted into the oil receiver 10 and the handle lever 9 is gripped, the pump P
Operates to discharge the oil remaining in the suction pipe 2, the pump P, the oil feed pipe 5 and the injecting tool 7 into the oil receiver 10 and return the oil from the oil drain hole 14 to the oil tank T.

As described above, according to the present invention, a large-diameter, bottomed tubular oil receiver is integrally provided with an L-shaped pipe portion having an air supply hole in the middle of the suction pipe of the oil supply pump. Since the plug of the air supply hole was provided on the back of the oil and the oil drain hole was formed through the bottom of the oil receiver, the oil in the upper suction pipe, pump, oil supply pipe and injecting tool that remains after refueling is operated by the pump. Can be forced back into the oil tank very easily. Therefore, according to the present invention, the operation of discharging the residual oil does not require any trouble and can be easily performed by anyone, which is very useful in preventing waste of fuel and environmental pollution. .

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is an exploded perspective view of the same, and FIG. 2 is a partially cutaway elevational view of an essential part thereof. S ... Suction pipe, 1 ... Lower suction pipe, 2 ... Upper suction pipe, P ... Pump, 3 ... Suction port, 4 ... L-shaped pipe section, 5 ... Oil supply pipe, 6 ... Spitting Exit, 7 ... injection device, 8 ... hand switch, 9 ... handle lever, 10 ...
… Oil receiver, 11… Air supply hole, 12… Lid, 13… Plug, 14…
… Oil drainage hole, 15 …… bottom part, 16 …… fitting part, T …… oil tank, t
…… Spout, M …… Motor.

Claims (2)

[Scope of utility model registration request] 1. An L-shaped pipe portion 4 having an air supply hole 11 is provided in the middle of a suction pipe S, and a large-diameter bottomed cylindrical oil receiver 10 is provided integrally with the L-shaped pipe portion 4. The upper surface of the oil receiver 10 is covered with an openable / closable lid 12, and a plug body 13 for sealing the air supply hole 11 is provided on the rear surface of the lid 12, and a bottom portion 15 of the oil receiver 10 communicates with an oil tank T. A suction pipe device for an oil supply pump, which is characterized by having 14 pierced. 2. The refueling according to claim 1, characterized in that an annular fitting portion 16 which fits into the spout t of the oil tank T is formed on the back surface of the oil receiver 10. Pump suction pipe device.