JPS609190Y2 - Gravity liquid filling nozzle device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gravity liquid filling nozzle device used for filling containers by the weight of the liquid itself in the tank.

More specifically, the nozzle holder is slidably fitted into the nozzle body attached to the bottom of the liquid storage tank.
The holder has a nozzle integrated therein, and the body has a hole opened to the outside and a ring-shaped groove extending all around the body, and a ventilation hole that communicates with the hole after filling the holder with liquid. By introducing air into the nozzle, the liquid remaining in the nozzle is refilled into the container, and the volume decreased after the nozzle is removed from the container is refilled to quickly dispense a predetermined amount of liquid. This invention relates to a gravity-type liquid filling nozzle device that can fill a container with water.

BACKGROUND ART A gravity-type liquid filling nozzle device that directly uses the weight of the liquid as a device for filling a container such as a bottle with a liquid such as soy sauce is already known.

A nozzle body is attached to the bottom of a tank storing soy sauce, etc., and a nozzle holder with an integrated liquid discharge nozzle is fitted inside the nozzle body so as to be able to slide vertically.

When the container filled with liquid rises and pushes up the nozzle holder, the filling valve formed by the nozzle body and nozzle holder opens, and the liquid in the tank flows through the nozzle holder due to the weight of the liquid itself and leaves the nozzle. It is discharged into a container and filled into the container.

An overflow pipe is installed inside the nozzle, and this pipe extends from the top end of the nozzle to the inside top of the nozzle holder, and the air in the container that has begun to fill with liquid passes through this overflow pipe and flows into the nozzle holder. reach the top of.

An overflow valve formed by the nozzle holder and a pipe member connected to the tank is installed at the top of the nozzle holder, and when the nozzle holder is pushed up as described above, this valve also opens. The above air is discharged to the tank side.

When the containers are successively filled with liquid and the liquid level reaches the opening of the overflow pipe, the liquid rises in this pipe, and the discharge of liquid from the nozzle ends when this reaches the liquid level in the tank.

After this, when the container is lowered, the nozzle holder also moves downward, and the filling valve and overflow valve are closed to stop filling the lowering container with liquid.

In order to fill the container with liquid in a short time, it is possible to install the tank at a high place and set the liquid level head in the tank high to increase the speed of the liquid flowing down the nozzle or nozzle holder. However, in this method, the size of the device itself is inevitably increased, and the cost of the device is high, so there is a limit to how large the device can be.

Another method for quickly filling a container with liquid is to increase the diameter of the nozzle.

If this method is adopted, compared to the former method, the size of the device itself will not be increased, and it is also advantageous in terms of cost.

However, when the diameter of the nozzle is increased, the volume occupied by the nozzle inside the container increases, and therefore a predetermined amount of liquid cannot be filled into the container unless the liquid remaining in the nozzle is refilled into the container.

If an attempt is made to fill the container with more liquid in anticipation of the amount of liquid decreasing by the volume of the nozzle, the liquid will overflow from the container, which is not desirable.

Conventionally, devices using piston means to refill the container with the liquid remaining in the nozzle have been known, but such a device increases the number of parts and has a complicated structure, which is undesirable. .

The inventor of the present invention has developed an extremely simple configuration that allows liquid remaining in the nozzle to be filled into the container when the diameter of the nozzle is increased in order to finish filling the container with liquid in a short time and to quickly complete the liquid filling operation. The present invention has been developed so that it can be refilled.

The object of the present invention is to fit a nozzle holder into a nozzle body that is attached to the bottom of a tank and communicates with the tank so as to be able to slide vertically, and to cause the nozzle holder to discharge liquid into the container. A nozzle and an overflow pipe extending above the upper end of the nozzle are integrated internally, and the nozzle body and nozzle holder are opened when the nozzle holder is raised, and the liquid in the tank is drained through the nozzle. A filling valve is provided for injecting into the container through the nozzle holder, and the upper part of the nozzle holder is formed by a pipe member connected to the tank and the nozzle holder, and the air inside the container is discharged to the tank side to fill the container. In a gravity-type liquid filling nozzle device that is provided with an overflow valve for circulating the filled liquid back to the tank side, the nozzle body has a hole opened to the outside, and when the filling valve and the overflow valve are closed. Provided is a gravity type liquid filling nozzle device in which the nozzle holder is formed with a vent hole that coincides with the hole and introduces the atmosphere to the nozzle side.

With the above configuration, when the filling of the liquid into the container is finished and the nozzle holder is lowered to close the filling valve and the overflow valve, the liquid flows to the nozzle side through the hole and the ventilation hole. Because atmospheric pressure acts, the liquid remaining in the nozzle can be refilled into the container,
Even when the nozzle is removed from the container, a predetermined amount of liquid remains in the container, and the diameter of the nozzle is increased to increase the filling speed of the liquid.The structure is extremely simple, just by forming the hole and the ventilation hole. can be distant relatives.

Another object of the present invention is that when the hole is inclined so that the nozzle holder side is lower and the atmosphere is introduced through the hole, liquid flows from the hole to the outside of the nozzle body. To provide a gravity-type liquid filling nozzle device which prevents the liquid filling from occurring.

Further, the object of the present invention is that the end of the hole on the nozzle holder side is formed into a ring-shaped groove, and the ventilation hole is formed to be located on the opposite side of the hole, so that atmospheric air can be removed. When refilling the container with the liquid remaining in the nozzle due to introduction, the ring-shaped groove separates the hole from the ventilation hole, thereby preventing the liquid from blowing out from the hole. The present invention provides a type liquid filling nozzle device.

Furthermore, an object of the present invention is to form an end of the hole on the nozzle holder side into an incomplete ring-shaped groove in which the vicinity of the hole is closed, and to form the ventilation hole into a part of the ring-shaped groove. Gravity-type liquid is formed to coincide with the terminal end, thereby increasing the distance between the vent and the hole to more effectively prevent liquid from blowing out from the hole when introducing the atmosphere. A filling nozzle device is provided.

A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

Fig. 1 shows the device according to the present invention, and Fig. 2 shows the device according to the present invention.
It is a 2-line sectional view.

Reference numeral 1 denotes a liquid storage tank, and since the apparatus according to this embodiment is used to fill bottles with soy sauce, the tank 1 stores soy sauce.

A nozzle body 2 is attached to the lower surface 1a of the tank 1 through a flange portion 2a by screw connection or the like, and this nozzle body 2 is provided to protrude downward from the tank 1.

A sliding hole 3 is vertically formed inside the nozzle body 2, and a filter body 4 is fixed to the upper part facing the inside of the tank 1, and a filter 4a provided on the circumferential side of the body 4. The inside of the nozzle body 2 and the tank 1 are communicated through the nozzle body 2 and the tank 1.

The sliding hole 3 has a nozzle holder 5 shaped like a vertical tube.
is fitted so as to be slidable in the vertical direction, a spring receiving seat part 5a is made to protrude laterally at the lower part of this 5, and a coil spring 6 is compressed between the lower surface of the nozzle body 2 and this seat part 5a. A downward elastic force is constantly applied to the nozzle holder 5 by the spring 6.

A female tapered valve seat 7 that expands upward is formed at the upper end of the sliding hole 3 of the nozzle body 2, and a male tapered valve portion 8 that tapers downward is formed in the nozzle holder 5 facing this portion.
form.

As shown in FIG. 4, the nozzle holder 5 is pressed downward by the elastic force of the coil spring 6, and the O-ring 9 fixed to the valve part 8 is pressed against the valve seat 7, and the nozzle holder 5 is moved to a downward position relative to the nozzle body 2. The filling valve 10 is defined by the valve seat 7 and the valve portion 8.

A pipe member 11 attached to the filter body 4 is slidably fitted in the upper part of the nozzle holder 5, and when the nozzle holder 5 is moved up and down with respect to the nozzle body 2, the pipe member 11 is Mo nozzle holder 5
slides in the vertical direction.

At the upper part of the nozzle holder 5 into which the pipe member 11 is fitted, there is a female tapered valve seat 1 which expands downward as shown in FIG.
2, and a male tapered valve seat 13 that tapers upward is formed on the pipe member 11, and an O-ring 14 is fixed to this portion 13.

A coil spring 15 is compressed between the shoulder portion 5b of the nozzle holder 5 and the flange portion 11a of the pipe member 11 attached to the filter body 4, and this spring 15 also exerts a downward elastic force on the nozzle holder 5. and when the filling valve 10 is closed, the O-ring 1
The valve seat 12 is in surface contact with the valve seat 13 via the valve seat 4.

As a result, an overflow valve 16 is formed in the upper part of the nozzle holder 5 by the valve seat 12 and the valve portion 13.

The tip of the pipe member 11 extends toward the tank 1, and a portion of the lower portion faces the inside of the filter body 4 and is fitted into the nozzle holder 5 as described above.

The inner bore of the pipe member 11 is not continuous, but instead defines discontinuous passages 17, 18 as shown in FIG.

A communicating hole 19 having a larger diameter than the pipe member 11 in this portion is formed in the nozzle holder 5 facing the passage 18, and through holes 20 and 21 are formed in the respective passages 17 and 18.

The nozzle holder 5 rises and the overflow valve 16
When the passages 17 and 18 are opened, the passages 17 and 18 are connected through the communication hole 19 and the communication holes 20 and 21.

The nozzle holder 5 has a liquid introduction hole 22 located below the filling valve 10, and when the filling valve 10 is opened, the chamber A of the filter body 4 and the chamber B of the nozzle holder 5 are connected to each other. It is connected via the introduction hole 22.

A nozzle 23 having the same diameter as the inner diameter of the holder 5 is integrally installed inside the nozzle holder 5, and the upper end 23a of the nozzle 23 extends to the middle of the nozzle holder 5, and the lower end extends from the bottom of the nozzle holder 5. It protrudes to a sufficient length and extends to the vicinity of the bottom surface of the bottle filled with liquid, ie, the soy sauce.

An overflow pipe 24 is provided inside the nozzle 23 so as to be integrated with the nozzle 23, and the tip of this pipe 24 extends upward from the upper end 23a of the nozzle 23, and the lower end is opened as an inflow hole 25 in the side surface of the nozzle 23. ing.

Reference numeral 26 in FIG. 1 is a clamp pivotally attached to the nozzle holder 5. By engaging this clamp 26 with an engaging portion 27 formed at the lower part of the nozzle body 2, the nozzle holder 5 is raised and the filling is performed. The valve 10 and overflow valve 16 are opened and steam or the like is passed through the device to perform sterilization.

A hole 28 opened to the outside is formed in the nozzle body 2 to allow communication between the inside and outside of the nozzle body 2.

As shown in FIG. 1, the holes 28 are not formed at the same height in the horizontal direction, but are made so that the nozzle holder 5 side is lowered and the height position gradually increases toward the outside, and is inclined.

The end of the hole 28 on the nozzle holder 5 side is recessed to form a ring-shaped groove 29 as shown in FIG.
The entire outer circumferential surface of the ring-shaped groove 29 is arranged so that the ring-shaped groove 29 is located therein.

Also, a ventilation hole 30 is formed in the nozzle holder 5.The position of the ventilation hole 30 is such that it is completely aligned with the ring-shaped groove 29 when the nozzle holder 5 is at the lowering limit position and the filling valve 10 and overflow valve 16 are closed. , and is formed to be located on the opposite side of the angle 1800 of the hole 28.

Next, we will discuss the effect.

FIG. 1 shows the state before filling with liquid, and when the container to be filled with liquid, that is, the bottle 31 is raised by means not shown, the backing 32, the guide 33, the backing 34
The bottle 31 and the lower surface of the nozzle holder 5 come into contact with each other through the
A further upward movement of the bottle 31 causes the nozzle holder 5 to be pushed up against the elastic force of the spring 6.15.

This state is shown in FIG.

As a result, the closed filling valve 10 is opened, and the liquid that had been flowing into the chamber A of the filter body 4 through the filter 4a passes through the filling valve 10 and fills the chamber B of the nozzle holder 5 and the nozzle 23 with the weight of the liquid itself. The liquid then flows down and begins to be injected into the bottle 31 from the lower end opening of the nozzle 23.

As the liquid continues to be injected, the air in the group 31 flows into the inflow hole 25.
It is guided from there to the overflow pipe 24 and reaches the upper part of the nozzle holder 5.

Since the overflow valve 16 is opened at the same time as the nozzle holder 5 is pushed up, this air flows through the passage 18 of the pipe member 11, the through hole 21, the communication hole 19 of the nozzle holder 5, the passage hole 20 of the pipe member 11, and the passage. 17
are discharged to the tank 1 side through each of them to ensure that the bottle 31 is filled with liquid.

When the filling of the liquid into the bottle 31 further progresses and the liquid level reaches the inflow hole 25, the liquid flows into the overflow pipe 2.
4, and is returned to the tank 1 side like the discharged air, and when the reflux liquid reaches the inside of the pipe member 11 at the same height as the liquid level in the tank 1, the liquid is filled. is completed.

In this case, as shown in FIG. 2, the ventilation hole 30 provided in the nozzle holder 5 is located at a position shifted from the hole 28 of the nozzle body 2, so that the air flows through the inside of the nozzle body 2 and is injected into the bottle 31. There is no risk of the liquid leaking outside.

After that, when the bottle 31 is lowered, the nozzle holder 5 moves downward by the elastic force of the spring 6.15, and the filling valve 1
0 and overflow valve 16 are closed.

This stops the filling of liquid from the tank 1 into the bottle 31, and since the ventilation hole 30 of the nozzle holder 5 and the ring-shaped groove 29 formed at the end of the hole 28 of the nozzle body 2 coincide, this hole Air is introduced into the nozzle holder 5 from 28, and the liquid remaining in the chamber B of the nozzle holder 5 and the nozzle 23 is refilled into the bottle 31 by this atmospheric pressure.

Therefore, when nozzle 23 is removed from bottle 31, this nozzle 23 is in class 31! : The amount of liquid corresponding to the volume occupied by the bottle is returned to the bottle 31, and a predetermined amount of liquid is
can be filled.

In the above, an overlapping state in which the ring-shaped groove 29 and the vent hole 30 partially overlap occurs for a very short time immediately before the filling valve 10 is closed, and during this period, liquid flows into the vent hole 30, Ring-shaped groove 29, hole 28
There is a risk that it will be distributed and blown out.

However, as described above, since the vent hole 30 is formed on the opposite side of the hole 28, the liquid cannot reach the hole 28 unless it detours around the ring-shaped groove 29, and there is a time delay corresponding to this detour. A time lag occurs, during which time the filling valve 10
Since the holes 28 are closed, there is no risk of liquid blowing out from the holes 28.

Further, since the hole 28 is inclined with the nozzle holder 5 side lowered as described above, it is possible to prevent liquid from dripping to the outside.

FIG. 6 shows another embodiment. In this example, the nozzle holder 5
Instead of forming a ring-shaped groove surrounding the entire circumference of the nozzle body 2, a protrusion 35 is formed in the nozzle body 2 near the hole 28 toward the nozzle holder 5, and the ring-shaped groove is closed at the end. An incomplete ring-shaped groove 29a is formed.

Further, a ventilation hole 30a formed in the nozzle holder 5 is also provided at the end of this incomplete ring-shaped groove 29a.

As a result, the distance between the vent hole 30a and the hole 28 becomes longer than in the previous embodiment, and therefore the time for the liquid to detour becomes longer, making it possible to more effectively prevent the liquid from blowing out from the hole 28. can.

As is clear from the above description, according to the present invention, a hole opening to the atmosphere is formed in the nozzle body, and the end of the hole on the nozzle holder side is formed into a ring shape so as to surround the entire circumference of the holder. Since a ventilation hole is formed in the nozzle holder, which is formed as a groove and communicates with the hole through the ring-shaped groove when the liquid filling valve composed of the nozzle body and the nozzle holder is closed, after the filling operation is completed, The hole, the ring groove and the vent allow atmospheric air to be introduced into the nozzle, and this atmospheric pressure allows the remaining liquid in the nozzle to refill the container, and the vent is connected to the hole. Because they are formed on opposite sides, the hole and the ventilation hole are separated, which prevents liquid from blowing out from the hole when introducing the atmosphere. Therefore, the nozzle diameter can be increased to speed up liquid filling. In such a case, this can be achieved with an extremely simple structure that only forms the holes, ring-shaped grooves, and ventilation holes as described above without using any special mechanism such as a piston means, and gravity-type liquid filling can be achieved. It is possible to increase the filling speed in the nozzle device.

In addition, according to the present invention, since it is possible to refill the container with an amount equal to the volume of the nozzle that occupied the inside of the container, the diameter of the nozzle is increased and the lower end is extended sufficiently long to reach near the bottom of the container. Therefore, for example, when the device according to the present invention is used for filling soy sauce, it exhibits various features such as being able to pour soy sauce into bottles without creating bubbles. It is highly practical.

Furthermore, as specified in the embodiment section, if the hole is provided with the nozzle holder side lowered and inclined upward, it is possible to more effectively prevent liquid from dripping to the outside from this part. In addition, if the ring-shaped groove is formed as an incomplete ring-shaped groove closed near the hole, the distance between the hole and the ventilation hole becomes longer, and the blowing of liquid from the hole becomes more effective. can be prevented.

[Brief explanation of the drawing]

The drawings show a preferred embodiment of the present invention, in which Fig. 1 is a side sectional view of the device before liquid filling, Fig. 2 is a sectional view taken along the line 2-2 in Fig. 1, and Fig. 3 shows the overflow valve portion in Fig. 4 is an enlarged view of the filling valve part, FIG. 5 is a view similar to FIG. 1 during liquid filling, and FIG. 6 is a view similar to FIG. 2 showing another embodiment. . In the drawing, 1 is a tank, 2 is a nozzle body, 10 is a filling valve, 11 is a pipe member, 16 is an overflow valve, 23 is a nozzle, 24 is an overflow pipe, 28
29 is a hole, 29 is a ring-shaped groove, 29a is an incomplete ring-shaped groove, 30.30a is a ventilation hole, and 31 is a bottle which is a container.

Claims (2)

[Scope of utility model registration request] (1) a. A nozzle body provided at the bottom of a liquid storage tank, with a valve seat communicating with the inside of the tank and a sliding hole communicating with the valve seat provided in the vertical direction; b. A nozzle body provided vertically in the sliding hole. The nozzle body and the nozzle body form a liquid filling valve so that the valve seat opens when the nozzle body is raised and communicates the vertical passage provided inside the tank with the inside of the tank through the liquid introduction hole. A nozzle holder is provided with a pipe member fixedly installed on the tank side and a part that constitutes an overflow valve that opens when rising.
an overflow pipe that communicates with the portion constituting the overflow valve section; and a liquid filling nozzle section that communicates with the vertical passage inside the nozzle holder; d. a hole provided in the nozzle body that communicates with the outside; and a hole that communicates with the hole. a ring-shaped groove formed to surround the circumference of the nozzle holder; A gravity-type liquid filling nozzle device comprising the above-mentioned components, and a ventilation hole that communicates the inside of the nozzle holder with the outside via a ring-shaped groove and a hole. (2) The gravity-type liquid filling nozzle device according to claim 1 of the utility model registration, characterized in that the hole is formed so that the nozzle holder side is lowered and the nozzle body is inclined upward. .