JPH11156318A - Adaptor for washing dispenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adaptor for washing a dispenser simple in structure and rich in safety. SOLUTION: In an adaptor for washing a dispenser equipped with the connection part attached to the cap of washing barrel, a recessed mounting part 15 fitted with a dispenser head through a clamp means 20A in a detachable manner, the liquid flow passage 16 provided to the center of the bottom part of the mounting part 15 and the pressure feed gas flow passage 17 provided in the vicinity of the outer periphery of the liquid flow passage 16, a stepped bottom part 19 housing a ring-shaped packing 18 inserted so as to leave the opening parts 16a, 17b of the liquid flow passage 16 and the pressure feed gas flow passage 17 is provided to the mounting part 15 and the notch groove 22 piercing the stepped bottom part 19 from the stepped part top surface 19b thereof to the bottom surface 19c thereof is provided to the peripheral wall 19a of the stepped bottom part 19 by drilling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispenser cleaning adapter, and more particularly to a dispenser cleaning adapter used for removing beer from a beer keg, for example.

[0002]

2. Description of the Related Art Generally, a dispenser of this kind is attached to the mouth of a beer barrel and connected to a cylinder of a pumping gas such as carbon dioxide gas. In this state, a valve provided on a dispense head of the dispenser is operated. , By pressurizing carbon dioxide into the beer in the beer barrel,
It is used to supply beer to a predetermined place such as a cooling tank via a beer hose. The dispenser used in this way needs to be appropriately cleaned in order to maintain the quality of beer as well as hygiene.

Therefore, conventionally, a dispenser head of a dispenser removed from a beer barrel is mounted on a washing container, for example, a washing barrel having a mouth similar to that of a beer barrel containing water, and then the dispenser head of the dispenser head is mounted. By operating a valve to pressurize the carbon dioxide gas to the water in the washing barrel, as in the case of beer, the washing water is supplied to the beer hose,
Cleaning is performed by flowing inside the cooling tank and beer tap (tap). Then, after the supply of the carbon dioxide gas from the carbon dioxide gas cylinder is stopped, the tap is opened to remove the carbon dioxide gas remaining in the cleaning barrel, and then the dispense head is removed from the cleaning barrel.

[0004] However, in particular, as the cleaning time is shorter, gas may not be sufficiently released. When the dispense head is removed from the cleaning barrel with carbon dioxide gas remaining in the cleaning barrel as described above, There is a risk that the cleaning barrel may fly or the cleaning water may fly vigorously due to the pressure of the carbon dioxide gas, and there is a risk that the worker may be injured.

For this reason, conventionally, as shown in FIG.
A barrel provided with an exhaust valve 3 in the vicinity of a dispenser mounting port 2 of a cleaning barrel body 1 is used. When washing the dispenser using such a structure, the inside of the washing barrel main body 1 is filled with water, the dispense head is removed from the beer barrel while being connected to the carbon dioxide gas cylinder and the dispenser, and the dispense head is used for washing. It is attached to the mouth 2 of the barrel main body 1, the exhaust valve 3 is closed, and carbon dioxide gas is fed from the carbon dioxide gas cylinder into the barrel 1 for cleaning by the dispense head, and water in the barrel 1 for cleaning is removed. Cleaning is performed by pressure feeding. After the cleaning operation is completed, the supply of the carbon dioxide gas from the carbon dioxide gas cylinder is stopped, the exhaust valve 3 is opened, and the carbon dioxide gas remaining in the cleaning barrel main body 1 is exhausted. The dispense head has been removed from the main body 1.

[0006]

However, in the case where the exhaust valve 3 is attached to the washing barrel main body 1, there is a problem that it is difficult to attach the exhaust valve 3 to the thin washing barrel main body 1, and a dispense head is provided. There is a problem that the exhaust valve 3 hinders the attachment and detachment of the washing barrel body 1 when attaching or detaching it from the washing barrel main body 1, and the removal becomes troublesome.

In addition, there is also a problem that the safety is not sufficient because there is a case in which the gas exhaust by the exhaust valve 3 is forgotten before the dispensing head is removed.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a highly safe dispenser cleaning adapter which has a simple structure and allows simultaneous degassing when the dispense head is removed. .

[0009]

In order to achieve the above object, a dispenser cleaning adapter according to the present invention comprises a connecting portion attached to a mouth of a dispenser cleaning container and a concave portion for detachably mounting a dispensing head. Attachment portion, a liquid flow passage provided at the center of the bottom of the attachment portion, and a pressurized gas flow passage provided near the outer periphery of the liquid flow passage,
A dispenser washing adapter, comprising: a stepped bottom for accommodating a ring-shaped packing inserted leaving openings of the liquid flow path and the compressed gas flow path; and the stepped bottom. At an appropriate position on the peripheral wall of
The stepped bottom has a cutout groove penetrating from the top to the bottom of the stepped part. When the dispensing head is mounted on the mounting part by the fastening means, the packing is compressed and deformed to form the stepped bottom. And when the dispensing head is released, the pressurized gas flow passage and the notch groove can be communicated with each other (claim 1).

In the present invention, the fastening means may have a structure such as a screw-in type or a snap-fitting type, as long as it fixes the mounting portion of the dispense head between the stepped bottom and the stepped portion via the packing. Preferably, the fastening means includes a locking projection which projects inwardly on the opening side of the stepped bottom so as to clamp the mounting portion of the dispense head between the stepped bottom and the stepped bottom through the packing. It is better to be of the bayonet type (claim 2).

According to the dispenser cleaning adapter of the present invention configured as described above, when the dispensing head is mounted on the mounting portion, the packing interposed between the dispensing head and the bottom of the mounting portion is compressed and deformed. Then, since the notched groove is closed, the pressurized gas in the cleaning container can be pressurized and the cleansing water can be pressure-fed and supplied for cleaning without leaking the pressurized gas to the outside. In a state where the dispensing head is removed from the mounting portion, the compression of the packing is released, so that the notch groove communicates with the pumping gas flow passage to exhaust the pumping gas remaining in the cleaning container to the outside. Without). Therefore, degassing can be performed simultaneously with removal of the dispense head, so that degassing can be performed safely without any trouble.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a half sectional view showing a state in which a dispenser cleaning adapter (hereinafter simply referred to as an adapter) according to the present invention is mounted on a cleaning container such as a cleaning barrel, and FIG.
FIG. 2B is a plan view of the adapter, FIG. 2B is a sectional view of a half part of the adapter, and FIG. 2C is a sectional view of a main part along line AA of FIG. 2B.

The adapter 10 has a connecting portion 13 connected to a base 12 attached to a mouth portion of a cleaning barrel 11, and a concave mounting portion for detachably mounting a dispense head 14 through a fastening means 20A described later. 15, a liquid flow passage 16 provided at the center of the bottom of the mounting portion 15, and a plurality of, for example, four pressure-feeding gas flow passages 17 provided near the outer periphery of the liquid flow passage 16. The adapter 10 thus configured is formed of a plastic member.

The mounting portion 15 has a stepped bottom portion 19 for accommodating a ring-shaped packing 18 to be inserted except for openings 16a, 17a of the liquid flow passage 16 and the compressed gas flow passage 17.
Fastening means 20 having locking projections 20 projecting at two opposing locations on the inside of the opening side to clamp a mounting portion of the dispense head 14, for example, an outward flange portion 14a, between the bottom portion and the bottom portion.
A mainly.

In this case, the outward flange 14a may have at least a notch larger than the locking projection 20. When the dispense head 14 is mounted on the mounting portion 15, the outward flange 14 a is inserted into the concave mounting portion 15, avoiding the locking projection 20, and then the outward flange 14 a is rotated in the horizontal direction. Fastening is performed by a so-called bayonet method in which the outward flange 14a and the locking projection 20 are engaged. In this case, the lower surface of the locking projection 20, that is, the outward flange 14
It is preferable to provide a taper 21 at the corner of the surface pressing the upper surface of “a” (see FIG. 2C). The reason is that the dispense head 14 {specifically, the outward flange 14a}
This is because it is possible to easily attach / detach.

As shown in FIGS. 2A and 3,
At an appropriate position of the peripheral wall 19a of the stepped bottom 19 (four places are shown in the drawing), a step top surface 19 of the stepped bottom 19 is provided.
A cutout groove 22 penetrating from b to the bottom surface 19c is formed. This notch groove 22 is cut off from the pressure-feeding gas flow passage 17 when a mounting portion of the dispense head 14, for example, the outward flange portion 14 a is mounted on the mounting portion 15. That is, the outward flange 14 is located between the bottom of the mounting portion 15 and the locking projection 20.
When the packing 18 is mounted in a state where it is sandwiched, the packing 18 is compressed and deformed and comes into close contact with the bottom surface 19c and the peripheral wall 19a, so that the communication between the notch groove 22 and the pressurized gas flow passage 17 is cut off (see FIG. 4A). . When the dispense head 14 is removed from the mounting portion 15, the compressed state of the packing 18 is released, and the gap 23 between the bottom surface 19c and the peripheral wall 19a of the mounting portion 15 is formed by the pressure of the carbon dioxide gas remaining in the cleaning barrel 11. Is formed, the notch groove 22 and the pressurized gas flow passage 17
Are in communication with each other. Therefore, carbon dioxide gas remaining in the cleaning barrel 11 can be exhausted (degassed) to the outside through the gap 23 between the pressurized gas flow passage 17 and the packing 18 and the bottom surface 19c and the peripheral wall 19a of the mounting portion 15. (See FIG. 4B).

The dispense head 14 has a gas inlet 14b connected to a not-shown compressed gas supply source, for example, a carbon dioxide gas cylinder, and an operating lever 1 of a valve (not shown).
4c is provided, and by opening the valve with the operation lever 14c, the carbon dioxide gas supplied from the carbon dioxide gas cylinder pressurizes the cleaning water, that is, the water filled in the cleaning barrel 11, and the water is circulated. The washing operation can be performed by exhausting air from the tap via a beer hose (not shown) via the path 16. In addition, a seal member 2 is provided between the outer peripheral surface of the liquid flow tube portion 14 d of the dispense head 14 and the inner peripheral surface of the liquid flow passage 16 of the adapter 10.
5, a dispense head 14 and a base 12
An O-ring 24 is interposed between them to maintain the sealing property.

When the dispenser is cleaned using the adapter 10 configured as described above, the cleaning barrel 11 is filled with water for cleaning, and the dispensing head is moved from the beer barrel (not shown) together with the adapter 10 to a carbon dioxide gas cylinder. And remove it while connected to the dispenser.
0 is connected to a base 12 attached to the mouth of the washing barrel 11, and carbon dioxide gas is fed from the carbon dioxide gas cylinder into the washing barrel 11 by a dispensing head, and water in the washing barrel 11 is pumped. And perform washing. After the cleaning operation is completed, the supply of the carbon dioxide gas from the carbon dioxide gas cylinder is stopped, and the outward flange portion 14a of the dispense head 14 is removed from the adapter 10, as described above. The state is released, and the notch groove 22 and the pressure-feeding gas flow path 17 are in communication with each other, so that the carbon dioxide gas remaining in the cleaning barrel 11 is exhausted (degassed) to the outside. Therefore, the carbon dioxide gas remaining in the cleaning barrel 11 can be exhausted (degassed) at the same time when the dispense head 14 is detached, so that it is not necessary to degas after cleaning as in the conventional case, and it is simple and reliable. Can be degassed.

In the above-described embodiment, the case where the liquid flow passage 16 is provided at the center position and the pressurized gas flow passage 17 is provided around the liquid flow passage 16 has been described. However, such a structure is not necessarily required. For example, the liquid flow path 16 may be provided at a position offset from the center, and the pressure-feeding gas flow path 17 may be provided at other positions.
The liquid flow passage 16 and the pressurized gas flow passage 17 may be defined. Further, in the above-described embodiment, the case where the adapter 10 is a screw-in type has been described, but a bayonet-type coupling structure other than the screw-in type may be used.

[0021]

Next, the results of experiments on airtightness and safety performed by appropriately changing the depth of the stepped bottom portion 19 of the adapter 10 will be described.

◎ Experimental conditions ・ Depth of stepped bottom No cutout groove: 5.5mm, 6.0mm, 6.5m
m, 6.7mm With notched groove: 5.5mm, 6.0mm, 6.5m
m-Notch groove Width of notch groove: 8 to 10 mm Number of notch grooves: 4-Pressurized gas: compressed air-Test pressure: 2.0 kgf / cm ² , 2.5 kgf / c
m ² , 3.0 Kgf / cm ² , 3.5 Kgf / cm ² · Test method: At each of the above pressures, a fitting valve (dispense head) having a diameter of 33 mm was sealed,
The removal state was repeated 10 times and confirmed. The removal speed of the fitting valve was intentionally slightly increased.

Based on the above experimental conditions, the airtightness and safety of Comparative Examples 1 to 4 each having no notched groove in the stepped bottom and Examples 1 to 3 each having the notched groove in the stepped bottom were provided. When the properties were evaluated, the results shown in Table 1 were obtained.
In this case, the airtightness was evaluated with or without air leak at a pressure of 3.5 kgf / cm ² with the fitting valve attached. The safety was evaluated based on the presence or absence of a popping sound when the fitting valve was removed.

[0024]

[Table 1]

As a result of the above experiment, air leaks did not occur in Comparative Examples 1 to 3, but a popping sound was generated when the fitting valve (dispense head) was removed. In the case of Comparative Example 4, air leakage was observed. In contrast, in the case of the first embodiment, a slight popping sound was generated when the fitting valve (dispense head) was removed.
There were no air leaks. In Examples 2 and 3, there was no air leak, and there was no popping sound when the fitting valve (dispense head) was removed.

Therefore, the stepped bottom portion 19 of the adapter 10
It has been found that sufficient safety can be ensured by appropriately setting the depth of the groove to, for example, 6.0 mm, 6.5 mm, or the like, and providing the cutout groove 22 in the peripheral wall 19 a of the stepped bottom portion 19.

[0027]

As described above, according to the dispenser cleaning adapter of the present invention, when the dispensing head is mounted on the mounting portion, the packing interposed between the dispensing head and the bottom of the mounting portion is not affected. Since the gas is compressed and deformed to close the notch groove, the pressurized gas in the cleaning container can be pressurized and the cleaning water can be pressure-fed and supplied to the cleaning without leaking the pressurized gas to the outside. In a state where the dispensing head is removed from the mounting portion, the compression of the packing is released, so that the notch groove communicates with the pumping gas flow passage to exhaust the pumping gas remaining in the cleaning container to the outside. Without). Therefore, the gas can be vented simultaneously with the removal of the dispense head without opening the tap, so that the gas can be vented safely without any trouble.

[Brief description of the drawings]

FIG. 1 is a half sectional view showing a state in which a dispenser cleaning adapter according to the present invention is mounted on a cleaning container.

2A is a plan view of the adapter, FIG. 2B is a half-sectional view of the adapter, and FIG. 2B is a sectional view of a main part taken along line AA of FIG.

FIG. 3 is a sectional perspective view showing a mounting portion, a stepped bottom portion, and a cutout groove according to the present invention.

FIGS. 4A and 4B are a main part cross-sectional view showing a state where a dispense head is mounted on an adapter and a main part cross-sectional view showing a state where a dispense head is removed from the adapter.

FIG. 5 is a perspective view showing a conventional cleaning barrel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 13 Connecting part 15 Mounting part 16 Liquid flow path 16a Opening 17 Pressurized gas flow path 17a Opening 18 Packing 19 Stepped bottom part 19a Peripheral wall 19b Step top surface 19c Bottom surface 20A Fastening means 20 Locking projection 22 Notch groove

Claims (2)

[Claims] 1. A connecting portion attached to the mouth of a dispenser washing container, a concave mounting portion to which a dispensing head is removably mounted via fastening means, and a liquid flow passage provided at the center of the bottom of the mounting portion. And a pressurized gas flow passage provided in the vicinity of the outer periphery of the liquid flow passage, wherein the mounting portion is a ring that is inserted while leaving the liquid flow passage and the pressurized gas flow passage open. A stepped bottom portion for accommodating a stepped packing, and a cutout groove penetrating from a step top surface to a bottom surface of the stepped bottom portion at an appropriate position on a peripheral wall of the stepped bottom portion. When the dispensing head is mounted on the mounting portion by means, the packing is compressed and deformed to be in close contact with the stepped bottom portion, and when the mounting of the dispensing head is released, the pressure feeding gas is released. The flow passage and the notched groove allows communication, dispenser cleaning adapter, characterized in that. 2. The dispenser cleaning adapter according to claim 1, wherein the fastening means is provided inside the opening of the stepped bottom so as to clamp a mounting portion of the dispense head with the stepped bottom through a packing. An adapter for cleaning a dispenser, comprising a projecting locking projection.