JPS609432Y2 - kerosene pump - Google Patents

Description

[Detailed description of the invention] This invention relates to improvement of the oil supply side portion of a kerosene pump.

When transferring oil from a kerosene can to a kerosene stove, a siphon-type kerosene pump is generally used easily.

If you use this type of pump, the tip of the oil supply side of the pump may become dislodged from the stove's fuel filler opening, allowing oil to flow outside of the stove.

If the material of the pump has hardened due to cold weather, it is necessary to hold it down while refueling so that the tip of the pump is inserted into the fuel filler opening of the stove.

For this purpose, there is a system in which the barrel tip is hook-like engaged with the fuel filler port using a metal fitting, but this has the disadvantage that the engagement disengages when the pump is operated manually to fill the fuel.

Therefore, this invention compensates for the above-mentioned drawback by ensuring this engagement by crimping.

To explain with an example, the tip part a of the kerosene pump on the lubricating side has a vertical protrusion 1 and a groove 2 as shown in FIG. 4 in cross section.
and.

The number of vertical stripes and grooves is not limited, and as described later, it is sufficient that the grooves 2 have a shallow depth because they can serve as air flow paths.

A ring-shaped plate 3 having a required thickness is fixed to the protrusion 1 on the upper outer periphery of the tube tip part a.

Next, as shown in Fig. 5, the cap b has a screw 6 on the inner circumferential wall that fits into the screw 5 provided in a protrusive manner on the fuel filler port 4 of the kerosene stove, and a screw 6 on the inner circumferential wall of the kerosene heater, and a screw 6 on the outer periphery of the tip portion a in the center. A hole 7 for fitting is provided.

The hole wall 8 is used to extend the hole 7 further downward from the lower end of the screw 6.
are integrally provided, a collar 9 is provided on the outer periphery of the lower end of the wall 8, and protrusions 10 are provided oppositely at the lower stage of the collar 9 as shown in FIG.

At the upper circumferential edge of the hole 7, an engaging piece 11 into which the disk 3 of the tube tip part is fitted is provided oppositely as shown in FIG.

Since the tube tip portion a and the cap b are made of a soft synthetic resin material, in order to fit the disk 3 of the tube tip portion into the engaging piece 11 of the cap, the cap b is fitted with a slight dovetail shape.

A backing 12 is fitted onto the lower end of the hole wall 8 and is seated on the collar 9, and a spring 14 is disposed between the backing 12 and the head plate 13 of the cap b, thereby constituting this invention.

In addition, 15 in FIG. 5 is a strainer holding groove, and 16 is a kerosene stove fuel filler tube.

To use this do the following:

Generally, in a kerosene stove that is directly refueled using a kerosene pump, there is a symmetrical cut groove on the inner peripheral edge of the fuel filler port 4 of the fuel filler tube 16, and a protrusion provided on the back of the fuel filler port cover is inserted into the groove. I'm trying to engage.

For this model, the protruding piece 1 at the lower end of the hole wall 8 of the cap b
0 into the cut groove and rotated in one direction to lock the cap b and the kerosene stove fuel filler tube 16.

Next, the cap b is pushed down against the spring 14, and the screws 5 and 6 are engaged to fix the cap b to the fuel filler tube 16.

As a result, the backing 12 is fixed to the fuel filler port 4, and an air flow path is formed between the waist backing 12 and the concave groove 2 of the tip portion a, and the tip portion a of the cap b is connected to the plate 3 and the engagement piece 11. It is fixed depending on the case.

Incidentally, the barrel tip portion a can be made so as to be connected to the tip of the oil supply pipe of a conventional kerosene pump as appropriate.

Therefore, even if the kerosene pump is operated roughly or the pump is hardened due to cold weather, the kerosene pump can be safely refueled.

[Brief explanation of the drawing]

Fig. 1 is a partial vertical sectional view of this devised pump, Fig. 2 and the following are partial views, Fig. 2 is a plan view of the cap, Fig. 3 is a bottom view of the cap, Fig. 4 is a sectional view of the tip of the cylinder, Figure 5 is a partial vertical sectional view of the fuel filler opening of the kerosene stove. In the figure, a is the tip of the cylinder, b is the cap, 1 is the protrusion, 2 is the groove, 3 is the plate, 4 is the oil filler port, 5 is the screw, 6 is the screw, 7 is the hole, 8 is the hole wall, and 9 is the hole wall. Collar, 10 is a projecting piece, 11 is an engaging piece, 1
2 is the backing, 13 is the head plate, and 14 is the spring.

Claims (1)

[Scope of utility model registration request] The tip part a on the oil supply side of the kerosene pump has a groove 2 for ventilation along the longitudinal direction in its cross section, and a plate 3 is integrally provided on the outer periphery of the tip part a at the upper part of the groove 2. , the cap b has a hole 7 in its center for inserting the tube tip part a, and has a circular shape 7.
The hole wall 8 is extended to the lower part of the groove 2, and a retaining collar 9 for the backing that is fitted onto the hole wall 8 is provided on the outer periphery of the lower end thereof, and a protruding piece 10 is provided in a protruding manner at the lower end of the cap b. A spring 14 is provided between the screw 6, the collar 1b, the head plate 13, and the backing 12 on the inner circumferential wall, and the cylinder tip part a and the cap b are connected so that the plate 3 of the cylinder tip part a is opposed to the upper periphery of the hole 7 of the cap b. A kerosene pump that is assembled by engaging with a coupling piece 11.