JPS5923753Y2 - Filling valve cleaning cap - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filling valve cleaning cap for cleaning a liquid filling valve.

Figures 1 and 2 show conventional filling valve cleaning caps. 1 is the main liquid tank, 2 is the liquid filling valve attached to the tank 1, the valve body 3, and the liquid inside the main body 3. A liquid filling passage 5 formed in communication with the lower passage 4, a gas conduit upper 6, and a lower gas conduit which is vertically adjustable and is attached to the valve body 3 so as to communicate with the gas conduit upper 6, and has holes 7 and 8 at its lower part. 9. A float 1o held in the lower waste conduit 9, a sealing gasket 11 that seals the mouth of the container attached to the valve body 3, and a pin 1 attached to the valve body 3.
It is composed of two parts.

13 is a filling valve cleaning device, which has a groove 1 that engages with the pin 12;
4 and a ring-shaped protrusion 15 that abuts the sealing gasket 11; a protrusion 1;
5 and a φ ring 18 for sealing between the cap 13 and the valve body 3.

19 is a cleaning liquid tank; 20, one end is the cleaning liquid tank 19;
22 is a cleaning liquid circulation pipe whose other end is connected to the valve body 3 via a joint 21; 22 is a cleaning liquid circulation pipe whose one end is connected to the cleaning liquid tank 19 and the other end is connected to the main liquid tank 1; 23;
and 24 are on-off valves provided in the pipes 2o and 22;
5 is a pump provided in the pipe 22.

In the above configuration, after the liquid filling operation is completed, the main liquid in the main liquid tank 1 is discharged, and the cleaning device 13 is attached to the filling valve 2 by engaging the pin 12 in the groove 14.

Thereafter, the on-off valves 23 and 24 are opened and the pump 25 is operated to fill the main liquid tank 1 with the cleaning liquid in the cleaning liquid tank 19 via the pipe 22.

After the main liquid tank 1 is filled with cleaning liquid, the filling valve 2
When the liquid valve and gas valve (not shown) are opened,
The cleaning liquid in the tank 1 is supplied to the upper gas pipe 6, the lower gas pipe 9,
and the cap 16 via the liquid flow lower passage 4 and the liquid filling passage 5.
The hole 17 is filled with the inside of the cap 16.
The liquid returns to the cleaning liquid tank 19 via the joint 21 and the piping 2o, circulates in the above-mentioned path, and cleans the inside of the main liquid tank 1 and the filling valve 2.

However, the cleaning cap 13 described above does not fit the filling valve 2.
If a certain amount of compression is not allowed for the φ ring 18 when the valve body 3 is attached to the valve body 18, the seal between the valve body 3 and the cap 16 will be incomplete, causing leakage of the cleaning liquid.

For this reason, there are drawbacks such as the need for force to attach the cleaning cap 13 and the possibility of damaging the φ ring 18.

In addition, since the liquid level in the container when filling the liquid is adjusted by vertically adjusting the lower gas conduit 9 and adjusting the thickness of the sealing gasket 11, the sealing gasket is used to fill the cap 16 with the cleaning liquid. In some cases, the tip of the protrusion 15 formed on the cap 16 so as to come into contact with the sealing gasket 11 needs to be processed in accordance with the thickness of the sealing gasket 11.

This invention was proposed to address the above points.
A cap that is removable from the filling valve body, a U seal that is attached to the cap and seals between the cap and the filling valve body, and a U-packet that is attached to the cap so that it can move up and down via a spring, and whose upper end It is characterized by a ring member that comes into contact with the sealing member of the container attached to the filling valve body, and its purpose is to be able to be easily attached to the filling valve and to ensure a seal of the cleaning liquid. It is an object of the present invention to provide a filling valve cleaning cap that can be used to clean the filling valve.

Since the present invention is constructed as described above, the U-packet is easily deformed when the cleaning device is installed, so that it is extremely easy to attach the cleaning device to the filling valve.

Furthermore, pump pressure is applied to the U-packet due to the circulation of the cleaning liquid, and both ends of the U-packet are pressed against the sealing surface, so that a reliable seal can be achieved.

Further, since the ring member for filling the cap with the cleaning liquid is mounted so as to be movable up and down via a spring, it is possible to easily adjust the thickness of the sealing gasket.

Hereinafter, embodiments of the present invention will be described based on FIGS. 3 and 4.

Note that explanations of the same parts as in FIGS. 1 and 2 will be omitted.

50 is a cleaning cap; cap 51. A U gasket 52 is fitted into the cap and performs a seal with the valve body 3, a ring member 54 is attached to the cap 51 so as to be movable up and down via a spring 53, and whose upper end abuts the sealing gasket 11; It consists of a hole 55 provided in the lower part of the hole 55 and at least one notch 56 provided in the upper end thereof.

In addition, as shown in FIG. 4, the U packing 52 has both ends 52
It is assumed that a and 52b are open upward and their tips are rounded.

Further, the cleaning cap 50 is attached by engaging the pin 12 provided in the valve body 3 with the groove provided in the cap 51, as in the conventional one.

In the above configuration, when the U gasket 52 is fitted into the cap 51, one end 52a of the U gasket 51 deforms along the wall surface of the cap 51, and when the cleaning cap 50 is attached to the filling valve 2, the U gasket 52 deforms. Other end 52
b is deformed when it hits the wall surface of the valve body 3, and seals between the cap 51 and the valve body 3.

On the other hand, the ring member 54 moves up and down according to the thickness of the sealing gasket 11 by the action of the spring 53, and its upper end reliably abuts against the sealing gasket 11.

In this state, cleaning liquid is circulated to clean the filling valve 2 in the same manner as in the conventional system.

Therefore, according to the above embodiment, the following effects can be obtained.

(1) Since the pump pressure from the cleaning liquid acts on the U gasket 52, both ends 52a and 52b are pressed against the wall surfaces of the cap 51 and the valve body 3, respectively.
A reliable liquid seal can be performed.

(2) When installing the cleaning cap 50, make sure to
2 is easily deformed, so it is extremely easy to install, and since the tip of the U-packet 52 is rounded, the U-packet 52 is less likely to be damaged. (3) The ring member 54 is attached via the spring 53. Since the sealing gasket 11 is mounted so as to be movable up and down, the thickness of the sealing gasket 11 can be easily adjusted.

(4) Since the notch 56 is provided at the upper end of the ring member 54, the sealing gasket 11 that the container contacts can be effectively cleaned during filling.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing the conventional one, Figure 2 is A of Figure 1.
Fig. 3 is a sectional view showing an embodiment of the present invention;
The figure is a sectional view of the U-packet. 2: Filling valve, 3: Valve body, 11 Niji ring gasket, 50: Cleaning cap, 51: Cap, 5
2: U packing, 53: spring, 54: ring member.

Claims (1)

[Scope of utility model registration request] A cap that is removable from the main valve body; a U-packet that is attached to the cap and seals between the cap and the filling valve body; A filling valve cleaning cap comprising a ring member that abuts against a sea tank member of a container attached to a filling valve body.