JPS625540Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an on-off valve for a cartridge oil tank that can have a large oil supply opening.

Conventional on-off valves for cartridge oil tanks have a valve seat provided in an oil supply hole, and the oil supply hole is closed off by the valve that is pressed against the valve seat by a spring.
The oil supply hole is opened by pushing the valve against a spring, but when the oil supply hole is configured with a large opening (valve seat), the valve seat must be made larger to obtain the same sealing force. This requires a stronger spring, and the spring usually has to be pushed open by the weight of an empty cartridge oil tank, so there is a limit to how strong the spring can be, and in practice it is impossible to open a large opening. .

On the other hand, if the oil supply hole is large and an on-off valve can be constructed, it will be convenient to insert the oil supply hose etc. directly into the oil supply hole and refuel without getting your hands dirty, and it will also prevent oil leakage accidents caused by improper tightening of the cap. Although it was clear that this method had excellent practicality, it was difficult to put it into practical use.

This invention solves the above problem, and a part of the wall surface of the cartridge oil tank 1 is formed into a protrusion 3 having a tapered part 2. In the embodiment, the protrusion 3 is formed by a mounting screw 13. It is fixedly installed in the cartridge oil tank 1 and cannot be removed during refueling. 4 is a flat plate portion configured at the base of the protrusion 3;
This part functions as the valve seat of conventional products. 6 is a bottomed cylinder having a tapered part 5 inscribed in the tapered part 2; 7 is a collar formed by expanding the open end of the bottomed cylinder 6 outward; and a rubber magnet 8 is attached to the collar. It faces the flat plate part 4. The tapered portion 2 has a required number of openings 9, and the openings 9 are normally covered by the tapered portion 5 of the bottomed cylinder 6. 10 is a hole drilled at the tip of the protrusion 3; 11 is a shaft attached to the bottom surface of the bottomed cylinder 6; the shaft 11 passes through the tip hole 10 and projects; the end of the shaft 11 and the protrusion A spring 12 is interposed between the tip of the rubber magnet 8 and the tip of the rubber magnet 8, and the rubber magnet 8 is guided to the flat plate portion 4 by the spring 12 and the tapered portion 5. Reference numeral 14 designates an oil supply pipe, and when it is inserted into the protrusion 3 through the opening 9, the spring 12 is compressed and the bottomed cylinder 6 is pushed in, and the rubber magnet 8 and the flat plate part 4 do not come into close contact with each other.
Can be refueled. Note that if the opening 9 is provided at other positions, the air in the cartridge oil tank can be easily released.

With the above configuration, if the cartridge oil tank 1 is tipped over and inserted into an oil pan etc., the flat plate part 4
Even if the rubber magnet 8 is firmly attached to the shaft 11, the weight of the oil tank 1 and the weight of the oil in the oil tank 1 are
Because of this, the bottomed cylinder 6 is easily pushed and the close contact between the flat plate portion 4 and the rubber magnet 8 is broken. Therefore, the oil in the cartridge oil tank 1 can flow out through the opening 9 from the gap between the cylinder 6 and the protrusion 3. Furthermore, even if the oil in the oil tank 1 is used, the flat plate part 4 and the rubber magnet 8 are separated, so the adsorption force does not work, and the oil tank floats up to open and close like when a strong spring is used to obtain a strong closing force. The oil in the oil tank 1 can be completely used up without closing the valve.

On the other hand, when the cartridge oil tank 1 is lifted up, the rubber magnet 8 is attracted to the flat plate part 4 by the force of the spring 12 and the gravity of the bottomed cylinder 6, and the rubber magnet 8 is easily deformed, and the oil that has become attached to the flat plate part 4 is removed. This will never happen.

Opening 9 when refueling cartridge oil tank 1
When the oil supply pipe 14 is inserted and the tapered part 5 of the bottomed cylinder 6 is pushed, the bottomed cylinder 6 is pushed and the close contact between the flat plate part 4 and the rubber magnet 8 is broken, and the oil is supplied into the oil tank 1. At this time, there is no need to touch the protrusion 3 that is wet with oil, so there is no chance of it getting dirty with oil. Furthermore, if a plurality of openings 9 are provided, the oil sent directly from the oil supply pipe 14 will not adhere to the other openings, and only air can escape, allowing efficient oil supply.

When refueling is completed, if the refueling pipe 14 is pulled out, the spring 12
lifts the bottomed cylinder 6 against gravity, and the tapered part 5 contacts the tapered part 2, so the protrusion 3 and the bottomed cylinder 6 fit concentrically, and the protrusion 3 is held in place. The flat plate portion 4 and the rubber magnet 8 can be brought into close contact with each other. Furthermore, once the flat plate portion 4 and the rubber magnet 8 are in close contact with each other, the attraction force is maximum when they are in close contact with each other, so there is no fear of oil leakage.

As mentioned above, in this invention, the closing force of the on-off valve is not the force of a spring, so strong force is not required to keep the valve open, and it is possible to open a large opening, which significantly improves practical performance. It is.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the main part of this device, and Fig. 2 is a sectional view of the main part during refueling. DESCRIPTION OF SYMBOLS 1...Cartridge oil tank, 2...Tapered part, 3...Protrusion, 4...Flat plate part, 5...Tapered part, 6...Bottomed cylinder, 7...Brim part, 8...Rubber Magnet, 9... Opening, 10... Tip hole of protrusion, 1
1...axis, 12...spring.

Claims (1)

[Scope of utility model registration request] A part of the wall surface of the cartridge oil tank 1 is formed into a protrusion 3 having a tapered part 2, and a flat plate part 4 is formed at the base of the protrusion 3, and a tapered part 5 is inscribed in the tapered part 2. The open end of the bottomed cylindrical body 6 is expanded outward to form a flange 7.
A rubber magnet 8 is attached to face the flat plate part 4, an opening 9 is made in the tapered part 2, and a shaft 11 is attached to the bottom surface of the bottomed cylinder 6 through the tip hole 10 of the protrusion 3. A cartridge oil tank is constructed in which a spring 12 is interposed between the end of the shaft 11 and the tip of the protrusion 3, and the rubber magnet 8 is guided to the flat plate part 4 by the spring 12 and the tapered part 5. Open/close valve.