JPH032759B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a nozzle gun for supplying kerosene, and more particularly to a device for automatically stopping the supply of fuel to a cartridge tank of a stove or the like.

<Prior art and its problems> A manual pump used to transfer kerosene from a container to another container is used, for example, to transfer kerosene from a container (18 plastic container) to a cartridge tank such as a stove. This is used when refueling with kerosene to the cartridge tank, and if the cartridge tank is not monitored during refueling, kerosene will overflow from the cartridge tank. The overflowing kerosene easily seeped into the floors, causing problems such as the stains and odor being difficult to remove even when wiped with a cloth. Also recently, the fifth
As shown in the figure, there is a refueling pump c with a nozzle gun b attached to the tip of a refueling hose a, and the refueling can be adjusted and stopped by the adjustment lever d of the nozzle gun b. There is a problem in that the refueling state of the cartridge tank must be monitored, and time is wasted for this purpose.

<Means for solving the problem> In order to solve the above problem, a float for sensing the liquid level is built into the nozzle gun by appropriate means, and the nozzle is automatically blocked. , its gist is that the upper part of the cylindrical shape with an open bottom end has a hose connecting cylindrical body that communicates with the cylindrical body, and a valve seat with an ejection hole is provided in the middle part of the cylindrical body. , a valve stem having one end protruding loosely from the upper end of the cylindrical body above the nozzle hole, and a valve rod having a valve body disposed at the other end for freely closing the nozzle hole; One end of the rod is loosely connected to the tip of a lever for lifting the valve stem, the bending portion of which is pivotally supported on the outer periphery of the hose connecting cylinder, and furthermore, the rod is connected at all times between the valve body and the upper end of the cylinder. A spring body is provided around the valve stem so that the jet hole is closed by the biasing force of the spring,
In a nozzle gun in which the amount of kerosene supplied can be freely adjusted by operating the valve stem lifting lever, a rod with a tapered tip is formed coaxially with the valve stem at the bottom of the valve body. The locking member is provided so as to be loosely inserted into the ejection hole, and the locking member is pivotally supported within the cylindrical body at a side portion of the rod so as to maintain the ejection hole in an open state. A link member is provided with a cam roller for locking the valve seat, a spring member is interposed between the upper end of the link member and a protruding piece protruding from the lower part of the valve seat, and the link member is disposed within the opening at the lower end of the cylindrical body. A liquid level sensing float is included between the lower end of the member via a link mechanism, and the locking member is released from the cam roller when the liquid level sensing float is located at the uppermost end. This is a nozzle gun for supplying kerosene.

<Embodiments and Effects> The nozzle gun for supplying kerosene of the present invention will be described in detail below with reference to drawings showing embodiments thereof.

FIG. 1 is a partially cut-away explanatory view of the present invention, showing a hose connection cylinder 3 that can connect the tip of a kerosene supply hose to the upper side of a cylinder 1 with an open bottom end by means of a hose lock nut 2. It communicates diagonally upward. In the middle part of the cylindrical body 1 there is an ejection hole 4.
is formed by a valve seat 5 and a partition wall 6 that supports the valve seat 5, and one end thereof is located above the jet hole 4 and coaxially with the cylinder 1.
A valve rod 8 is protruded loosely from the upper end and has a valve body 7 disposed at the other end that freely closes the spout hole 4, and one end of the valve rod 8 is for connecting the hose. It is loosely connected to the tip of a lever 10 for lifting the valve stem, which is pivotally supported on the outer periphery of the cylindrical body 3 using a bent portion 9 as a fulcrum. Therefore, the spring body 11, which normally maintains the state in which the jet hole 4 is closed by the biasing force of the spring, is placed between the valve body 7 and the upper end of the cylinder body 1, and the valve stem 8 is replaced. It will be set up accordingly.

Reference numeral 12 indicates a lever 10 for lifting the valve stem when the tip of the lever 10 for lifting the valve stem is pulled upward.
This is a ring-shaped member that is attached to the top of the valve stem 8 in order to engage the tip and pull the valve stem 8 upward. Reference numeral 13 denotes a spring member for maintaining the valve stem lifting lever 10 always held.

A rod 15 is provided at the bottom of the valve body 7 coaxially with the valve stem 8 and has a locking member 14 having a tapered tip, and the rod 15 supplies kerosene to the inside of the spout hole 4. It shall be formed in a loosely inserted state so as not to cause any trouble during the installation.
Therefore, when the locking member 14 is pulled upward by the valve stem lifting lever 10, the locking member 14 is attached to the side part of the rod 15 on a link member 16 that is pivotally supported within the cylinder body 1. The link member 16 is configured to be locked by a cam roller 17, and the tip of the link member 16 has a protruding piece 18 that protrudes from the lower part of the partition wall 6.
A spring member 19 is installed between the two. Further, a liquid level sensing float 20 is included in the lower end opening of the cylinder 1, and the liquid level sensing float 20
The link member 1 is bent into an inverted L shape with the upper end.
6 and the base end thereof, the structure is such that they are pivoted and interlocked by interlocking link members 21, 21, . . . whose fulcrums are points A and B, respectively.

A projecting piece is provided around the rod 15 so that the rod 15 is always located on the central axis of the cylindrical body 1 and does not swing due to sliding with the cam roller 17. Guide members 22, 22, . . . are provided around the circumference.

In the present invention having the above configuration, as shown in FIG.
Insert the lower end opening of the cylindrical body 1 into the mouth of the tube. In this case, the cylindrical body 1 is locked in a fixed position by the flange-shaped protrusion 24 provided around the outer periphery of the cylindrical body 1, and when the lever 10 for lifting the valve stem is pulled, The valve stem 8 is lifted up against the biasing force of the spring body 11 wound around the valve stem 8, and the tapered locking member 14, which is integrally provided at the bottom of the valve stem 8, is similarly lifted upward. and moves upward while sliding over the cam roller 17. At this point, as shown in FIG. 3, the moment due to the weight of the liquid level sensing float 20 at this point is applied to the spring member 19 installed between the tip of the link member 16 and the protruding piece 18.
Since the moment is larger than that of the tapered locking member 14 and the cam roller 17, the locking member 14 and the cam roller 17 are
A straight line F connecting the contact point C with the cam roller 17, the center D of the cam roller 17, and the rotation center point E of the link member 16
An extension line G between the contact point C on the surface of the locking member 14
If the angle formed by the
is held in the position where the hole is opened, and kerosene is supplied.

As shown in FIG. 4, the container 23
When the liquid level sensing float 20 is filled with kerosene H, the liquid level sensing float 20 floats up and its own weight becomes almost zero, so the moment due to the dead weight of the liquid level sensing float 20 is smaller than the moment due to the spring member 19. As the cam roller 17 rotates slightly upward, the valve stem 8 moves slightly downward due to the biasing force of the spring body 11. A force pushing downward due to the biasing force acts to rapidly rotate the cam roller 17 upward, so that the locking member 14 is released from being fixed by the cam roller 17, and the valve stem 8 is moved to the spring body. It is pushed down by the urging force of 11,
The jet hole 4 is completely closed by the valve body 7, and the supply of kerosene is automatically stopped.

<Effects of the Invention> As described above, according to the present invention, when refueling a cartridge tank container of a stove or the like with kerosene, the lever for pulling up the valve stem is pulled to set the refueling state. When the container is filled with kerosene, the liquid level sensing float detects the kerosene level and automatically stops refueling, causing kerosene to overflow from the container. Moreover, since there is no need for monitoring, it is effective in saving a lot of time and effort.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway explanatory diagram of the present invention, and FIGS. 2 to 4 are explanatory diagrams showing the usage state of the present invention, respectively.
FIG. 5 is an overall explanatory diagram showing a kerosene supply pump using a conventional nozzle gun. In the figure, 1: cylinder body, 3: hose connection cylinder body, 4:
Spout hole, 5: Valve seat, 7: Valve body, 8: Valve stem, 9: Bent part, 10: Valve stem lifting lever, 11: Spring body,
14: Locking member, 15: Rod, 16: Link member, 17: Cam roller, 18: Projecting piece, 19: Spring member, 20: Float for liquid level sensing, 2
1, 21,...: Interlocking link member.

Claims (1)

[Claims] 1. A cylindrical body with an open bottom end has a hose connection cylindrical body communicating with the cylindrical body on the upper side thereof, and a valve seat with a spout hole is disposed in the middle part of the cylindrical body. The upper part includes a valve stem whose one end protrudes loosely to the outside of the upper end of the cylindrical body, and the other end of which is provided with a valve body that freely closes the jet hole, and one end of the valve stem is A bending portion is connected to the tip of the lever for pulling up the valve stem, which is pivotally supported on the outer periphery of the hose connection cylinder, in a loose fit,
Furthermore, a spring body is provided between the valve body and the upper end of the cylindrical body so as to wrap around the valve stem so that the jet hole is normally closed by the biasing force of the spring. In a nozzle gun that can freely adjust the amount of kerosene supplied by operation, a rod body having a locking member with a tapered tip formed coaxially with the valve stem at the bottom of the valve body is loosely fitted into the spout hole. A cam roller is attached to a side portion of the rod body so as to be inserted through the cylinder body, and a cam roller is pivotally supported within the cylinder body and locks the locking member so as to maintain the jet hole opened. A link member is provided, a spring member is interposed between the upper end of the link member and a protruding piece protruding from the lower part of the valve seat, and a link mechanism is provided between the lower end of the link member and the lower end of the cylindrical body. A nozzle gun for supplying kerosene, characterized in that a liquid level sensing float is enclosed through the cam roller, and the locking member is released from the cam roller when the liquid level sensing float is located at the uppermost end. .