JPH0128074Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application The present application relates to a refueling nozzle that is particularly useful in self-service refueling stations where customers who are inexperienced in refueling themselves refuel themselves.

(B) Conventional technology and its problems For safety reasons, the nozzle at a gas station that uses a self-service system is designed so that when the operator leaves the refueling position, that is, when the operator takes his hand off the valve opening lever of the nozzle, the lever returns to its original position. The lever locking means is removed so that the valve is closed and refueling is stopped.

Built-in valves are normally opened against oil pressure and a valve-closing spring, and in order to supply a large amount of oil, the lever must be pulled for a long period of time against this force. It's a huge burden on female customers and makes their fingers hurt.

(c) Structure and operation to solve the problem The present application is proposed in view of the above-mentioned problem. When you release your hand from the lever, the lever is unlocked by the lever locking means and the valve closes, ensuring safety.It consists of a handle, a built-in valve that opens and closes the flow path, A lever that opens and closes the built-in valve,
In a nozzle having lever locking means for locking the lever in the built-in valve open position, the lever locking means is provided with a lever locking piece that can take both a lever lockable position and a lever lockable position, The handle is provided with an actuation piece that is allowed to be displaced in the direction of the handle and takes a standby position protruding from the handle when not displaced, so that the actuation piece can be displaced in the direction of the handle and the lever locking piece can lock the lever. The two are linked together so that the displacements to the positions coincide, and in addition, a means is provided for urging the actuating piece toward the standby position. When the handle is grasped, the actuating piece is displaced toward the handle, causing the lever to engage. Since the stop piece takes the lever locking position, the lever can be locked when the built-in valve is open, but when the handle is released, the lever locking means returns to the lever locking impossible position, so the lever locking is released. The built-in valve is closed.

(d) Embodiment N is an oil supply nozzle in which a handle 2 and a discharge pipe 3 are formed or connected to a main body 1, and oil sent through a hose 4 passes through a valve chamber 5 and a flow path 6 to the discharge pipe 3. released from.

Reference numeral 7 denotes a valve body, which is always urged by a spring 8 in the direction of being pressed against the valve seat 9. Reference numeral 10 denotes a valve stem extending from the valve body 7.

11 has a lower half shaped like a sickle so that it can be easily caught by fingers, and an upper end that rotates around a fulcrum shaft 12 implanted in the main body 1, and has enough play to swing in a direction perpendicular to the rotation trajectory. It is a lever for opening and closing the valve that is fitted into the fulcrum shaft 12, and the left end of the valve rod 10 is always in contact with a portion slightly above the midpoint of the lever 11.

Reference numeral 13 denotes an operating piece, which is rotatable about a shaft 14 implanted in the handle 2, and is always biased counterclockwise in FIGS. 1 and 2 by a spring 15.

Reference numeral 16 denotes a locking piece, the upper surface of which locks the lever 11 is stepped into a step shape, and the main body 1 and the handle 2
It is rotatable around a shaft 18 that is erected on a lever guard 17 that is spanned between.

Further, a long hole 19 is bored at the right end of the locking piece, and a shaft 20 implanted in the actuation piece 13 is fitted into this long hole 19, so that the locking piece 16 moves according to the movement of the actuation piece 13. It's starting to work.

In the above configuration, when the handle 2 is not gripped, the operating piece 13 and the locking piece 16 are operated by the spring 15.
2, and in this state, even if the lever 11 is pulled in some way, its lower end cannot be locked to the stepped portion of the locking piece 16.

When the handle is grasped, the operating piece 13 is rotated clockwise against the bias of the spring 15 to the home position shown in FIG. This causes the shaft 20 to move the locking piece 16 to the shaft 18.
Rotate counterclockwise around the center.

The rotation locus of the lower end of the lever 11 is as shown by the two-dot chain line shown in FIG. can be opened, and at an appropriate position, the lever 11 can be moved to the position shown by the solid line in FIG.
Even if the finger is removed from the lever 11 in this state, the valve 7 remains open and refueling continues.

If the operator leaves the refueling position due to carelessness or some kind of accident during refueling, he or she will release the handle 2. At this time, the force pressing the actuating piece 13 in the clockwise direction 10 is removed, so the actuating piece 13 is rotated counterclockwise from the normal position by the elasticity of the spring 15, and thereby the locking piece 18 is also rotated clockwise. As a result, the lever 11 can no longer be locked in the valve open position by the locking piece 16, and the valve body 1
The valve 7 is closed by the spring 8 and hydraulic pressure, and returns to the state shown in FIG.

(E) Effect As detailed above, since the lever locking piece is displaced to the lockable position by the displacement of the actuating piece that resists the bias, the lever locking means can prevent the lever from opening at the valve opening position. Even if the nozzle is locked, if the operator releases the nozzle handle for some reason while refueling, the actuating piece will return to its original position, which will close the valve and stop refueling, ensuring safety. This eliminates the strain on your fingers from continuously pulling the lever.

[Brief explanation of drawings]

Figure 1 shows a cross-section of a part of the nozzle, showing the state when the valve is open, Figure 2 shows the state when the valve is closed, and Figure 3 is a cross-section taken in the A-A direction in Figure 1. FIG. 4 is a cross-sectional view taken along the line B--B in FIG. 2. 2...Handle, 7...Valve body, 11...Lever, 1
3... Operating piece, 16... Locking piece.

Claims (1)

[Scope of utility model registration request] In a nozzle that has a handle, a built-in valve that opens and closes a flow path, a lever that opens and closes the built-in valve, and a lever locking means that locks the lever in the built-in valve open position, the lever locking means includes a lever locking means. A lever locking piece that can take both a lockable position and a lockable position is provided, and an actuation piece is provided on the handle, which allows displacement in the direction of the handle, and assumes a standby position protruding from the handle when not displaced. means for linking and connecting the two in order to match the displacement of the actuating piece toward the handle and the displacement of the lever locking piece to the lever locking position; and means for biasing the actuating piece toward the standby position. Refueling nozzle provided.