JP2002068387A - Tank for washing dispenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely remove a dispensing head by releasing the pressure of carbon dioxide in a tank for washing when the dispensing head is removed from the tank for washing. SOLUTION: This tank T for washing a dispenser is equipped with a tank main body 1 to house a washing liquid, and a fitting body 3. In this case, the fitting body 3 is attached to the mouth section 10 of the tank main body 1, and detachably fits the dispensing head 2 on the tank main body 1. In such a tank T for washing the dispenser, a residual pressure releasing mechanism 4 is formed. The residual pressure releasing mechanism 4 is equipped with a residual pressure releasing port 43 and a movable element 5. In this case, the residual pressure releasing port 43 goes through the side section of the fitting body 3. The movable element 5 is engaged with the dispensing head 2 fitted by the fitting body 3, and at the same time, opens/closes the residual pressure releasing port 43 accompanying the handle operation of the dispensing head 2. Thus, by lifting the handle 21 of the dispensing head 2 after a washing work of the dispenser, the engagement between the dispensing head 2 and the movable element 5 is released. At the same time, the residual pressure releasing port 43 opens, and the dispensing head 2 can be safely removed after the press-feeding gas residing in the tank main body 1 has been released to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispenser washing tank, and more particularly, for example, to a dispenser washing tank.
The present invention relates to a dispenser washing tank used for washing a draft passage of a draft beer dispenser.

[0002]

2. Description of the Related Art Generally, when cleaning a draft path of a draft beer dispenser, a dispense head is detached from a beer keg, attached to a cleaning tank containing a cleaning liquid (water), and then is placed in the cleaning tank via the dispense head. For example, carbon dioxide gas is injected (supplied) into the tank, and the carbon dioxide gas is pressurized to the cleaning liquid (water) in the tank, and the pressurized cleaning liquid (water) is flown through the pipe line of the dispenser via the dispense head for cleaning. Working.

In this type of dispenser washing tank, carbon dioxide remaining in the washing tank after washing the dispenser can be extracted by opening the tap valve of the dispenser, and the carbon dioxide gas is extracted. Later, the dispense head can be removed from the cleaning tank.

[0004]

However, in the above-described conventional dispensing cleaning tank, when the dispensing head is removed from the cleaning tank in a state where carbon dioxide gas remains in the cleaning tank due to an operation mistake or the like, The dispense head may be bounced off by the pressure of the carbon dioxide gas in the cleaning tank,
There was a risk of loud noises and injury to workers.

The present invention has been made in view of the above circumstances, and when the dispense head is removed from the cleaning tank with the carbon dioxide gas remaining in the cleaning tank, the pressure of the carbon dioxide gas in the cleaning tank is released. It is an object of the present invention to provide a dispenser washing tank in which the dispensing head can be safely removed.

[0006]

In order to achieve the above object, according to the present invention, there is provided a tank body for storing a cleaning liquid, and a dispense head attached to an opening of the tank body so as to be detachably mounted. Mounting body,
In the dispenser cleaning tank used for cleaning the dispenser, the pressurized gas supplied through the dispensing head is pressurized to the cleaning liquid in the tank body, and the pressurized cleaning liquid is supplied to the dispenser through the dispensing head. The mounting body has a residual pressure release hole penetrating through the side of the mounting body, engages with the dispense head mounted in the mounting body, and closes the residual pressure release hole when the dispense head is mounted. A residual pressure release mechanism including a mover is provided.

[0007] With this configuration, when the dispenser is washed, the dispensing head is engaged with the movable element of the residual pressure release mechanism in a state where the dispensing head is mounted on the mounting body, so that the movable element moves. As a result, the residual pressure release hole is closed, so that the inside of the cleaning tank is sealed. In this state, when the pressurized gas is supplied into the cleaning tank via the dispense head, the cleaning liquid in the cleaning tank is pressurized and flows to the dispenser side via the dispense head for cleaning.

According to a second aspect of the present invention, in the dispenser cleaning tank according to the first aspect, the movable element can open and close the residual pressure release hole with the opening and closing operation of the pressurized gas passage of the dispense head. It is characterized by becoming.

With this configuration, when the dispenser is washed, when the dispensing head is mounted on the mounting body, the dispensing head is provided with a residual pressure releasing mechanism in accordance with the opening operation of the pressurized gas passage of the dispensing head. By engaging the mover, the mover can move and close the residual pressure release hole, so that the inside of the cleaning tank is sealed. In this state, when the pressurized gas is supplied into the cleaning tank via the dispense head, the cleaning liquid in the cleaning tank is pressurized and flows to the dispenser side via the dispense head for cleaning. Also, after the dispenser is washed, the dispensing head disengages from the mover in conjunction with the closing operation of the pressurized gas passage of the dispense head, so that the mover moves to open the residual pressure release hole and release the tank body. The dispense head can be removed from the mounting body after the pumping gas remaining inside is released to the outside.

According to a third aspect of the present invention, in the dispenser washing tank according to the first or second aspect, the residual pressure release mechanism includes a residual pressure release passage provided through the side of the mounting body. A cap having a residual pressure release hole attached to a closed portion of the residual pressure release passage, a movable element slidably disposed in the residual pressure release passage, and the cap around the residual pressure release hole; A seal member mounted on one of the contact surfaces of the mover, a spring member for constantly urging the mover in a direction away from the cap side, and dispensing the mount from the mover And an engaging protrusion that protrudes into the head mounting portion and engages with and disengages from the dispense head.

[0011] With this configuration, when the dispenser is cleaned, the dispensing head is mounted on the mounting body and the dispensing head and the engaging projections are engaged with each other, thereby resisting the elastic force of the spring member. As a result, the mover moves to the residual pressure release hole side, and the seal member comes into close contact with the periphery of the residual pressure release hole. Thereby, the inside of the cleaning tank can be reliably sealed, and leakage of the pressurized gas supplied into the cleaning tank can be prevented. Further, after the dispenser is washed, by disengaging the dispensing head from the engagement protrusion, the movable element is moved to the mounting body side by the elastic force of the spring member, and the close contact state of the seal member is released and the residual pressure is released. A hole is opened, and the pressurized gas remaining in the cleaning tank can be released to the outside.

According to a fourth aspect of the present invention, in the dispenser washing tank according to the first or second aspect, the residual pressure release mechanism includes a residual pressure release passage provided through the side of the mounting body. A cap having a residual pressure release hole attached to a closed portion of the residual pressure release passage, a movable member slidably disposed in the residual pressure release passage, and facing the residual pressure release hole in the movable member. A seal member mounted on the distal end surface, a spring member for constantly urging the movable element in a direction away from the cap side, and projecting from the movable element into the dispense head mounting cavity of the mounted body. , A dispensing head and an engaging projection that engages with and disengages from the dispensing head.

With this configuration, the dispensing head is mounted on the mounting body, and the dispensing head and the engaging projection are engaged with each other, so that the movable element releases the residual pressure against the elastic force of the spring member. By moving to the hole side, the seal member can directly close the residual pressure release hole. Thereby, the inside of the cleaning tank can be reliably sealed, and leakage of the pressurized gas supplied into the cleaning tank can be prevented. Further, after the dispenser is washed, the engagement between the dispensing head and the engagement protrusion is released, so that the movable member is moved to the mounting body side by the elastic force of the spring member, and the closed state of the seal member is released to release the residual pressure. A hole is opened, and the pressurized gas remaining in the cleaning tank can be released to the outside.

According to a fifth aspect of the present invention, there is provided the dispenser cleaning tank according to the first or second aspect, wherein the residual pressure release mechanism is provided in a side portion of the mounting body in a penetrating manner, and one or more of the residual pressure relief mechanisms are circumferentially provided. A residual pressure release passage having a plurality of residual pressure release holes, a cap attached to an opening of the residual pressure release passage, a movable element slidably disposed in the residual pressure release passage, When the movable element is mounted on the outer peripheral surface of the child and moves to the mounting body side, the residual pressure release hole is located closer to the mounting body than the residual pressure release hole, and when the movable element moves to the cap side. A seal member mounted at a position for sealing the movable member from the cap side, a spring member for constantly urging the movable element in a direction away from the cap side, and a dispensing head of the mounted body from the movable element. When entering the mounting section In addition, it is characterized by comprising an engagement projection engaged with and disengaged from the dispense head, and a residual pressure discharge passage penetrating the movable element and the engagement projection.

With this configuration, when the dispenser is washed, the dispensing head is mounted on the mounting body, and the dispensing head and the engaging projections are engaged with each other, thereby resisting the elastic force of the spring member. As a result, the mover moves to the cap side, so that the seal member attached to the mover moves to the cap side, and seals the residual pressure relief holes from the mount body side and the cap side. Thus, the cleaning tank can be securely sealed, and leakage of the pressurized gas supplied into the tank body can be prevented. Also, after the dispenser is washed, the disengagement of the dispensing head and the engagement projection causes the movable element to move toward the mounting body by the elastic force of the spring member, so that the residual pressure of the seal member mounted on the movable element is released. The residual pressure release hole is positioned closer to the mounting body than the hole, the sealed state of the residual pressure release hole is released, and the pressure feed remaining in the tank body through the residual pressure release hole formed through the residual pressure discharge passage formed in the mover and the engagement protrusion. Gas can escape to the outside.

In the present invention, the arrangement of the spring member may be arbitrary, as long as the spring always biases the movable element away from the cap side. A concave portion is provided on a tip end surface of the movable element facing the cap, and a spring member is contracted between a bottom portion in the concave portion and the cap (claim 6). It is better to form a small-diameter portion on the cap-side portion and shrink a spring member between the movable element and the cap in a gap formed between the small-diameter portion and the inner peripheral surface of the residual pressure release passage. Good (claim 7).

With this configuration, the spring member can be provided in a narrow space.

It is preferable that a guide surface of the dispense head is formed on the upper surface of the engagement protrusion so as to be inclined downward toward the tip.

With such a configuration, the dispensing head and the engaging projection engage with each other while relatively moving along the guide surface, so that the movable element can move smoothly, and the residual pressure release hole is provided. Can be reliably opened and closed.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a dispenser cleaning tank according to the present invention will be described below in detail with reference to the accompanying drawings.

◎ First Embodiment FIG. 1 is a schematic configuration diagram showing a use state of a dispenser washing tank of the present invention, FIG. 2 is a half sectional view showing a dispenser washing tank with a dispense head mounted thereon, FIG. 3A is a sectional view showing a closed state of the residual pressure relief mechanism according to the first embodiment of the present invention, and FIG.
FIG. 5 is a cross-sectional view showing an open state of the residual pressure relief mechanism.

As shown in FIGS. 1 and 2, the dispenser washing tank T (hereinafter referred to as washing tank T) is attached to a tank body 1 containing a washing liquid and an opening 10 of the tank body 1. A main body comprising a mounting body 3 to which the dispensing head 2 is removably mounted, and a residual pressure relief mechanism 4 formed on the side of the mounting body 3 for discharging the residual pressure-feeding gas, for example, carbon dioxide gas, in the tank body 1. Have been.

The mounting body 3 is formed of, for example, a plastic member. As shown in FIGS. 2 and 4, the mounting body 3 is formed in a substantially cylindrical shape, and a female screw portion 31 formed on the inner peripheral surface of the lower end opening 30 is attached to the mouth 10 of the tank body 1. It is formed integrally with the tank main body 1 by being screw-coupled to the provided male screw portion 11.

An inward flange portion 32 is formed on the inner peripheral surface of the intermediate portion of the mounting body 3, and a concave groove 33 is provided on the lower surface of the inward flange portion 32. 3
An O-ring 34 that can be in close contact with the upper surface of the mouth 10 of the tank body 1 is mounted in the inside 3 (see FIG. 3).

A mounting flange 36 is formed on the upper end side of the mounting body 3 with which the mounting portion 20 of the dispense head 2 is detachably engaged. In this case, as shown in FIG. 4, the mounting flange portion 36 is provided with three mounting pieces 37 that protrude outward and form a triangular vertex in an arc shape. The mounting portion 20 of the dispense head 2 can be detachably engaged with the dispense head 2.
In this case, the mounting portion 20 of the dispense head 2
As shown in FIG. 2 and FIG. 5, there are provided a concave portion 20a surrounding the mounting flange portion 36, and a mounting piece 20b extending inward from the open end of the concave portion 20a. Piece 2
0b has a notch 2 slightly larger than the mounting piece 37 of the mounting body 3.
0c are provided at three locations in the circumferential direction. A step 20d is provided around a later-described through-passage 21a provided at the center of the concave portion 20a.
A sealing member 35 having a plurality of concentric annular ridges;
(See FIGS. 2, 3 and 5).

The dispensing head 2 has a body 21 having the mounting portion 20 at the lower end and a through-passage 21a penetrating vertically, and a through-passage 2 of the body 21.
Handle 2 for moving washing water outlet pipe 22 within 1a
3 is provided.

In this case, a carbon dioxide gas inlet 24 is provided on one side of the body 21. This carbon dioxide inlet 2
4 and a carbon dioxide gas cylinder 8 are connected via a carbon dioxide gas supply tube 9 (see FIG. 1). The carbon dioxide gas inlet 24 can be opened and closed by a washing water outlet pipe 22 that is moved by operating the handle 23.

The washing water outlet pipe 22 has an outward flange portion 22a at a position near the lower end thereof, and a plurality of (12 in the drawing) are arranged on the concentric circle of the outward flange portion 22a at appropriate intervals. Gas communication hole 22b)
Are drilled (see FIG. 5). This cleaning outlet pipe 22
A flange 25 having the same diameter as the cleaning outlet pipe 22
is connected via an O-ring 25b to the lower end of the joint member 25, the washing water guide tube 2 extending to near the bottom in the tank body 1.
6 are connected (see FIGS. 2 and 3).

The handle 23 has a bifurcated portion 23a which straddles the washing water outlet pipe 22 on the tip end side. The tip of the bifurcated portion 23a is located on one side of the upper end of the body 21. It is pivotally attached to an upright bracket 21b with a pivot 23b so as to be vertically rotatable. The intermediate portion of the forked portion 23a of the handle 23 is engaged with the washing water outlet pipe 22 with an engaging projection 23c. Therefore, the pivot 23b
By rotating the handle 23 upward and downward with the fulcrum as a fulcrum, the washing water outlet pipe 22 is moved upward and downward in the through passage 21a. Further, a grip 23d is mounted on the base end side of the handle 23 so as to be slidable with respect to the handle 23 main body. The grip 23d has an upper end portion of the trunk 21 located in the forked portion 23a. A lock pin 23e is provided integrally with the lock stepped portion 21c provided on the other side so as to be removably engaged (see FIG. 2). In this case, grip 2
3d and the lock pin 23e such that the lock pin 23e always projects into the forked portion 23a by the urging of the elastic force of a spring (not shown), that is, the lock pin 23e can be engaged with the locking step 21c. Has become.

In order to mount the dispense head 2 configured as described above to the cleaning tank T, the mounting flange 36 of the mounting body 3 previously mounted on the mouth 10 of the tank body 1 is mounted.
The mounting flange 37 is positioned within the concave portion 20a of the mounting portion 20 by matching the mounting piece 37 of the dispensing head 2 with the notch 20c provided in the mounting portion 20 of the dispense head 2. Then, by rotating one or both of the dispense head 2 and the tank main body 1 in the horizontal direction, the attachment piece 20b of the attachment portion 20 and the attachment piece 37 of the attachment 3 are engaged. At this time, since the seal member 35 is in close contact with the upper surface of the mounting flange 36 of the mounting body 3 and the outward flange 22a of the washing water outlet pipe 22 that is moved downward by the operation of the handle 23 presses the seal member 35, The dispense head 2 is attached to the cleaning tank T while maintaining airtightness.

When the dispense head 2 is to be removed, the notch 2
0c can be removed by matching with the mounting piece 37.

As shown in FIGS. 2 and 3, the residual pressure relief mechanism 4 has a circular cross-section residual pressure relief passage 40 projecting horizontally from the side of the mounting body 3, and a residual pressure relief passage 40. A cap 42 having a residual pressure release hole 43 attached to the opening 41 of the movable member 40; a movable element 5 slidably disposed in the residual pressure release passage 40; A spring member for urging an elastic force in a direction away from the compression spring 4
4 and a seal member 45 attached to the contact surface of the mover 5 in the cap 42 constitute a main part.

In this case, the residual pressure release passage 40 is formed in a circular cross section projecting horizontally from the side of the mounting body 3, and passes through a through hole 39 penetrating the side wall 38 of the mounting body 3. And is communicated with the inside of the hollow portion of the mounting body 3. A male screw portion 40b is formed in the outer peripheral portion 40a on the distal end side of the residual pressure release passage 40.

The cap 42 has a residual pressure release passage 40
The female screw part 42b which is screw-coupled to the male screw part 40b is formed. In the center of the top 42a of the cap 42, a residual pressure release hole 43 for releasing carbon dioxide remaining in the tank body 1 to the outside is formed. Also, the cap 42
An annular concave groove 42c is formed on the inner surface of the top 42a on the concentric circle of the residual pressure release hole 43, and a seal member such as O which abuts on the distal end surface 52 of the movable element 5 is provided in the annular concave groove 42c. A ring 45 is mounted. Here, the case where the O-ring 45 is mounted on the top 42a of the cap 42 has been described. However, the O-ring 45 may be mounted on the distal end surface 52 of the movable element 5 that contacts the top 42a of the cap 42.

As shown in FIGS. 2 and 3, the mover 5 projects from a columnar base 50 in a direction in which the base 50 is located on the mounting body 3 side, and is fitted into the through hole 39. And an engaging projection 51 to be provided. In addition, a concave portion 5 is provided on a distal end surface 52 of the movable element 5 that faces the cap 42 of the base 50.
3 are provided. Between the bottom 54 in the recess 53 and the top 42a of the cap 42, a spring member, for example, a compression spring 44, which constantly urges the elastic force in a direction in which the cap 42 and the movable element 5 are separated from each other, is contracted. In addition, the engagement projection 51
A guide surface 51a of the dispense head 2 is formed at a corner of the upper surface of the dispensing head 2 and is inclined downward toward the tip. The cleaning water outlet pipe 22 of the dispense head 2 is provided on the guide surface 51a.
(Specifically, the flange portion 25a of the joint member 25 connected to the washing water outlet pipe 22) can come into contact. In addition, on the side surface of the base 50, for example, on the upper surface, a side surface of the base 50 is chamfered to form a passage 55 through which carbon dioxide gas from the tank body 1 passes (see FIG. 3).

When cleaning the dispenser 6 using the cleaning tank T configured as described above, first, the concave portion of the inward flange portion 32 formed on the mounting body 3 is formed in the mouth portion 10 of the tank body 1. It is mounted via an O-ring 46 mounted in the groove 33. Normally, the mouth 10 of the tank body 1 is
The mounting body 3 is mounted in advance. Notch 20 of mounting portion 20 of dispense head 2 from above mounted body 3
c is aligned with the mounting piece 37 of the mounting body 3, the mounting flange 36 is positioned within the concave portion 20a of the mounting portion 20, and the dispense head 2 and the tank main body 1 are relatively horizontally rotated to mount the mounting portion. 20 mounting piece 20b and mounting piece 3 of mounting flange 36
7 is engaged. Next, when the handle 23 of the dispense head 2 is lowered, the cleaning water outlet pipe 22 connected to the handle 23 moves downward, and the flange portion 25a of the joint member 25 connected to the cleaning water outlet pipe 22 The mover 5 is moved toward the cap 42 against the elastic force of the compression spring 44 while being engaged with the engagement protrusion 51 and in contact with the guide surface 51 a. Then, the tip surface of the mover 5 is
The residual pressure release hole 43 formed on the cap 42 is closed in close contact with the O-ring 45 mounted on the cap 42, and the inside of the cleaning tank T is sealed.

In this state, since the valve 8 a of the carbon dioxide gas cylinder 8 is open, the carbon dioxide gas is supplied into the tank body 1 through the carbon dioxide gas inlet 24 of the dispense head 2. Then, the washing water L stored in the tank body 1 is pressurized, and the washing water L flows to the dispenser 6 side through the washing water guide tube 26 and the washing water outlet pipe 22 of the dispense head 2 to wash the dispenser 6. To be served. Accordingly, the work of cleaning the dispenser 6 can be performed while maintaining the airtightness in the cleaning tank T.

After the washing operation is completed, the handle 23 of the dispense head 2 is raised to close the carbon dioxide gas inlet 24, so that the flange portion 25 of the joint member 25 connected to the washing water outlet pipe 22 of the dispense head 2.
a is disengaged from the engagement projection 51 of the mover 5. As a result, the movable element 5 that has been in close contact with the cap 42 via the O-ring 45 is pushed back by the elastic force of the compression spring 44, so that the residual pressure release hole 43 is opened, and the carbonic acid remaining in the tank body 1 is released. The gas is discharged from the residual pressure release hole 43 to the outside.

When the dispense head 2 is removed from the mounting body 3 after the carbon dioxide gas remaining in the tank body 1 is discharged to the outside through the residual pressure release hole 43 in this manner,
By displacing the notch (not shown) of the mounting portion 20 with the mounting piece 37 by the operation reverse to the above mounting operation, and disengaging the mounting flange portion 20 and the mounting piece 37, the dispense head 2 is attached to the mounting body 3. That is, it can be removed from the tank body 1. Therefore, the dispense head 2 can be detached from the tank main body 1 after the carbon dioxide gas remaining in the tank main body 1 escapes from the residual pressure release hole 43 to the outside, so that the dispense head 2 is jumped off by the pressure of the carbon dioxide gas. The dispensing head 2 can be safely removed from the tank main body 1 without generating an explosive sound.

Second Embodiment FIG. 6A is a sectional view showing a closed state of a residual pressure relief mechanism according to a second embodiment of the present invention, and FIG. 6B is an open state of the residual pressure relief mechanism. FIG.

The second embodiment is a case where the sealing structure of the residual pressure relief mechanism 4 in the first embodiment is changed. That is, in the residual pressure release mechanism 4A in the second embodiment, the seal member 46 is mounted on the distal end surface of the movable element 5A slidably disposed in the residual pressure release passage 40, and
6 shows a case where the residual pressure release hole 43 formed in the cap 42 is formed so as to be able to be closed.

In this case, the mover 5A has a cylindrical base 56, a small diameter portion 57 which is reduced in diameter and protrudes toward the distal end of the base 56, and an engagement protrusion 51 which protrudes toward the base end of the base 56.
Is provided. Further, on the distal end surface of the small diameter portion 57, a sealing member 46 is provided in a concave portion 53a which opens outward.
Is installed.

The sealing member 46 is made of, for example, silicon formed by integrally forming a cylindrical body 46a fitted into the recess 53a and a hemispherically bulging head 46b at the tip of the body 46a. It is formed of synthetic rubber such as rubber.

One end of the gap formed between the small diameter portion 57 of the mover 5A and the inner peripheral surface of the residual pressure release passage 40 is engaged with the inner surface of the top portion 42a of the cap 42, and the other end is inserted into the gap. A compression spring 44A (spring member) that engages with the distal end surface of the base 56 is contracted. Therefore, the movable element 5A is always separated from the cap 42 side by the elastic force of the compression spring 44A, and the residual pressure release hole 43 is opened.

Also, at the upper corner of the engaging projection 51,
As in the first embodiment, a guide surface 51a having a downward slope toward the tip is formed. In addition, the engagement protrusion 51
On the upper surface of the base member 56 and the upper surface of the base portion 56, a carbon dioxide gas passage 55a which is linearly continuous is formed.

In the second embodiment, other parts are the same as those in the first embodiment, and the same parts are denoted by the same reference numerals and description thereof will be omitted.

The dispenser 6 using the dispenser washing tank T of the second embodiment configured as described above.
When the cleaning is performed, first, the dispense head 2 is attached to the mounting body 3 in the same procedure as in the first embodiment. Then, when the handle 23 of the dispense head 2 is lowered, the flange portion 25 a of the connection joint 25 connected to the washing water outlet pipe 22 is engaged with the guide surface 51 a of the engagement projection 51 while being in contact therewith. By engaging a part of the dispense head 2 with the mover 5A in this manner, the mover 5A is moved toward the cap 42 against the elastic force of the compression spring 44A, and is attached to the distal end surface of the mover 5A. The hemispherical head 46b of the sealed member 46 directly closes the residual pressure release hole 43.

Therefore, the inside of the tank body 1 is maintained in a sealed state. In this state, when the carbon dioxide gas is supplied from the carbon dioxide gas cylinder 8 into the tank main body 1 in the same procedure as in the first embodiment, the cleaning water L stored in the tank main body 1 is pressurized, and the dispense head 2 Cleaning guide tube 2
The cleaning water L flows toward the dispenser 6 via the cleaning water outlet pipe 22 and the cleaning water outlet pipe 22, and is used for cleaning the dispenser 6.
Accordingly, the work of cleaning the dispenser 6 can be performed while maintaining the airtightness in the cleaning tank T.

After the washing operation is completed, the handle 23 of the dispense head 2 is raised, so that a part of the dispense head 2, ie, the flange portion 25a of the joint member 25 and the engagement projection 51 of the movable element 5A are engaged. Is solved. Thereby, the seal member 46 closing the residual pressure release hole 43 of the cap 42 is separated from the cap 42 side together with the movable element 5A pushed back by the elastic force of the compression spring 44A, so that the residual pressure release hole 43 is formed. The carbon dioxide gas which has been opened and remains in the tank body 1 has a residual pressure release hole 4.
3 to the outside.

After the carbon dioxide remaining in the tank body 1 is discharged to the outside in this manner, the dispense head 2 can be removed from the mounting body 3, that is, the tank body 1 in the same procedure as in the first embodiment.

Third Embodiment FIG. 7A is a cross-sectional view showing a closed state of a residual pressure relief mechanism in a third embodiment of the present invention, and FIG. 7B is an open state of the residual pressure relief mechanism. FIG.

The third embodiment is a case where the sealing structure of the residual pressure relief mechanisms 4, 4A in the first and second embodiments is changed. That is, the residual pressure release mechanism 4B in the third embodiment forms a residual pressure release hole 43a in the residual pressure release passage 40, and seals the movable member 5B slidably disposed in the residual pressure release passage 40 with a seal member. 47 is attached.

In this case, one or a plurality of (in the drawing, two cases are shown) residual pressure release holes 43a are provided in the circumferential direction of the residual pressure release passage 40. The mover 5B
As in the first embodiment, a cylindrical base 50 having a recess 53 and an engagement protrusion 51 protruding from the base end of the base 50 into the mounting portion of the dispense head 2.
Are integrally formed. At the outer peripheral surface of the base 50 of the mover 5B, two concave grooves 58 are provided at two places spaced apart from the residual pressure release hole 43a, and these concave grooves 58 are provided.
An O-ring 47, which is a seal member, is mounted inside each. In addition, the base 50 of the mover 5B and the engagement protrusion 51
Is formed with a residual pressure discharge passage 59 in a penetrating manner.

As in the first embodiment, the movable element 5B constructed as described above always has the cap 42 and the movable element 5B between the bottom 54 in the recess 53 and the top 42a of the cap 42. A spring member, for example, a compression spring 44 for urging the elastic force in the separating direction is contracted. In addition, the engagement protrusion 5
A guide surface 51a of the dispense head 2 is formed at a corner of the upper surface of the dispensing head 2 and is inclined downward toward the tip.

In the third embodiment, the other parts are the same as those in the first embodiment, and the same parts are denoted by the same reference numerals and description thereof will be omitted.

The dispenser 6 using the dispenser washing tank T of the third embodiment configured as described above.
First, the dispense head 2 is attached to the mounting body 3 in the same procedure as in the first and second embodiments. And the handle 23 of the dispense head 2
Is lowered, the connection joint 2 connected to the washing water outlet pipe 22
The fifth flange portion 25a is engaged with the guide surface 51a of the engagement protrusion 51 while being in contact therewith. Thus, the dispense head 2
Is partially engaged with the mover 5B, so that the mover 5B
Are moved toward the cap 42 against the elastic force of the compression spring 44, and the two O-rings 47 mounted on the outer peripheral surface of the base 50 of the mover 5B are in close contact with the inner peripheral surface of the residual pressure release passage 40. At the same time, the residual pressure release hole 43a is closed from the cap 42 side and the mounting body 3 side.

Therefore, the inside of the tank body 1 is maintained in a sealed state. In this state, when the carbon dioxide gas is supplied from the carbon dioxide gas cylinder 8 into the tank main body 1 in the same procedure as in the first and second embodiments, the cleaning water L stored in the tank main body 1 is pressurized and dispensed. The washing water L flows toward the dispenser 6 via the washing guide tube 26 and the washing water outlet pipe 22 of the head 2, and is used for washing the dispenser 6. Accordingly, the work of cleaning the dispenser 6 can be performed while maintaining the airtightness in the cleaning tank T.

After the washing operation is completed, the handle 23 of the dispense head 2 is raised, so that a part of the dispense head 2, ie, the flange portion 25a of the joint member 25 and the engagement projection 51 of the movable element 5B are engaged. Is solved. Thereby, the residual pressure release hole 43 of the residual pressure release passage 40 is formed.
a is closed from the cap 42 side together with the mover 5B pushed back by the elastic force of the compression spring 44, so that the O-ring 47, which has closed the a from the cap 42 side and the mounting body 3 side, is mounted at two places with an interval. When both of the O-rings 47 are moved from the residual pressure release hole 43a to the mounting body 3 side, the residual pressure release hole 43 is opened, and the carbon dioxide gas remaining in the tank body 1 is released from the movable element 5B. Base 50
Then, the residual pressure is released to the outside through the residual pressure release hole 43a through a residual pressure discharge passage 59 formed through the engagement protrusion 51 in a penetrating manner.

After the carbon dioxide remaining in the tank body 1 is discharged to the outside in this manner, the dispense head 2 is removed from the mounting body 3, ie, the tank body 1 in the same procedure as in the first and second embodiments. Can be.

[0060]

As described above in detail, the dispenser cleaning tank according to the present invention is constructed as described above, and therefore has the following excellent effects.

(1) According to the first aspect of the invention, when cleaning the dispenser, the dispensing head is engaged with the movable element of the residual pressure releasing mechanism while the dispensing head is mounted on the mounting body. Since the mover moves and the residual pressure release hole is closed, the inside of the cleaning tank can be sealed. In this state, by supplying the pressurized gas into the cleaning tank via the dispense head,
The cleaning liquid in the cleaning tank is pressurized and provided for cleaning the dispenser via the dispense head. Therefore, since the cleaning gas is supplied to the cleaning liquid without leakage, the cleaning operation can be performed efficiently. Also, after the dispenser is washed, the dispensing head and the movable element are disengaged from each other, so that the movable element moves to open the residual pressure release hole, and the pumping gas remaining in the tank body is released to the outside before dispensing. Since the head can be removed from the mounting body, when the dispensing head is removed from the mounting body, the dispensing head does not splash off or generate an explosive sound due to the pressure of the compressed gas remaining in the cleaning tank. Therefore, the dispense head can be safely removed.

(2) According to the second aspect of the present invention, when cleaning the dispenser, the dispensing head is attached to the mounting body, and the dispensing head is opened along with the opening operation of the pressurized gas passage of the dispensing head. By engaging the mover of the residual pressure release mechanism, the mover moves and the residual pressure release hole is closed, so that the inside of the cleaning tank can be sealed. In this state, the cleaning solution in the cleaning tank is pressurized by supplying the pressurized gas into the cleaning tank via the dispense head, and is used for cleaning the dispenser via the dispense head. Therefore, since the cleaning gas is supplied to the cleaning liquid without leakage, the cleaning operation can be performed efficiently. After the dispenser is washed, the dispensing head is disengaged from the mover in accordance with the closing operation of the pressurized gas passage of the dispense head, so that the mover moves to open the residual pressure release hole, and the tank main body is opened. The dispensing head can be removed from the mounting body after the pumping gas remaining in the inside is released to the outside.When the dispensing head is removed from the mounting body, the dispensing head jumps due to the pressure of the pumping gas remaining in the cleaning tank. There is no flying or explosion. Therefore, the dispense head can be safely removed.

(3) According to the invention of claims 3 to 5,
When cleaning the dispenser, the dispensing head is attached to the mounting body, and the dispensing head and the engagement protrusion are engaged with each other, so that the movable element moves to the residual pressure release hole side and the seal member is moved to the residual pressure release hole. And the residual pressure release hole is closed around the periphery of the cleaning tank, and in addition to the above (1) and (2), the inside of the cleaning tank can be further securely sealed. Leakage can be prevented. Further, by disengaging the dispensing head and the engagement projection after the dispenser is washed, the movable element moves to the mounting body side due to the elastic force of the spring member, and the seal member is released from the close contact state or the closed state and remains. Since the pressure relief hole is opened, the pumping gas remaining in the cleaning tank in addition to the above (1) and (2) can be quickly discharged to the outside.

(4) According to the sixth and seventh aspects of the invention,
A recess is provided on the tip surface of the mover facing the cap, and a spring member is contracted between the bottom and the cap in the recess, or a small-diameter portion is formed on the cap side of the mover. By compressing the spring member between the mover and the cap in the gap formed between the small diameter portion and the inner peripheral surface of the residual pressure relief passage, the spring member is disposed in a narrow space. Therefore, in addition to the above (3), the residual pressure relief mechanism can be further reduced in size.
The entire washing tank can be reduced in size.

(5) According to the eighth aspect of the present invention, the dispensing head and the engaging protrusion are formed on the upper surface of the engaging protrusion by forming the guide surface of the dispensing head with a downward slope toward the tip. , The movable element can be further smoothly moved in addition to the above (3), and the opening and closing of the residual pressure release hole can be ensured.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a use state of a dispenser cleaning tank of the present invention.

FIG. 2 is a half sectional view showing a mounted state of a dispenser cleaning tank of the present invention.

FIGS. 3A and 3B are a sectional view showing a closed state of a residual pressure release hole of the residual pressure release mechanism and a sectional view showing an opened state of the residual pressure release hole in the first embodiment of the present invention; FIGS.

FIGS. 4A and 4B are perspective views showing a mounting body according to the present invention and a plan view of FIG.

FIG. 5 is a bottom view of the dispense head.

FIGS. 6A and 6B are a sectional view showing a closed state of a residual pressure relief mechanism and a sectional view showing an open state of the residual pressure relief mechanism in a second embodiment of the present invention.

FIGS. 7A and 7B are a sectional view showing a closed state of a residual pressure relief mechanism and a sectional view showing an opened state of a residual pressure relief mechanism in a third embodiment of the present invention.

[Explanation of symbols]

 T Dispenser cleaning tank 1 Tank main body 2 Dispensing head 3 Mounting body 4 Residual pressure relief mechanism 5, 5A, 5B mover 10 Mouth 40 Residual pressure relief passage 42 Cap 43 Residual pressure relief hole 44, 44A Compression spring (spring member) 45 O-ring (seal member) 46 seal member 47 O-ring (seal member) 51 engagement projection 51a guide surface

Claims (8)

[Claims] 1. A pressurized gas supplied via a dispense head, comprising: a tank body for containing a cleaning liquid; and a mounting body attached to an opening of the tank body and detachably mounting a dispense head. A dispenser washing tank used for washing the dispenser, which pressurizes the washing solution in the tank body and supplies the pressurized washing solution to the dispenser side via a dispensing head. A residual pressure relief mechanism comprising: a residual pressure release hole that penetrates through; a movable element that engages with the dispense head mounted in the mounting body and closes the residual pressure release hole when the dispense head is mounted. A dispenser washing tank characterized by being provided. 2. The dispenser cleaning tank according to claim 1, wherein the movable element is configured to open and close a residual pressure release hole in accordance with an opening and closing operation of the pressurized gas passage of the dispense head. Dispenser washing tank. 3. The dispenser cleaning tank according to claim 1, wherein the residual pressure release mechanism is provided with a residual pressure release passage penetratingly provided on a side portion of the mounting body, and an opening of the residual pressure release passage. A cap having a residual pressure relief hole attached to the portion, a movable element slidably disposed in the residual pressure relief passage, and a contact surface between the cap and the movable element around the residual pressure relief hole A spring member that constantly urges the movable element in a direction away from the cap side, and projects from the movable element into the dispense head mounting portion of the mounting body. A dispenser cleaning tank, comprising: a dispensing head; 4. The dispenser cleaning tank according to claim 1, wherein the residual pressure release mechanism is provided with a residual pressure release passage penetratingly provided on a side portion of the mounting body, and closing the residual pressure release passage. A cap having a residual pressure relief hole attached to the portion, a movable element slidably disposed in the residual pressure relief passage, and a movable element mounted on a distal end surface of the movable element facing the residual pressure relief hole. A spring member for constantly urging the movable element in a direction away from the cap side, a spring member that protrudes from the movable element into the dispensing head mounting portion of the mounting body, and engages with and disengages from the dispensing head. An engagement projection that engages with
A dispenser washing tank comprising: 5. The dispenser cleaning tank according to claim 1, wherein the residual pressure release mechanism is provided in a side portion of the mounting body in a penetrating manner, and one or more residual pressure release holes are provided in a circumferential direction thereof. A residual pressure release passage having: a cap attached to an opening of the residual pressure release passage; a movable element slidably disposed in the residual pressure release path; and a movable element mounted on an outer peripheral surface of the movable element. When the mover moves to the mount side, the mover is positioned closer to the mount than the residual pressure release hole, and when the mover moves to the cap side, the residual pressure release hole is moved to the mount side and the cap. A seal member mounted at a position for sealing from the side, a spring member for constantly urging the movable element in a direction away from the cap side, and a projection from the movable element into a dispense head mounting portion of the mounting body. Along with the dispute Engaging projections for engaging the disengaged to Suheddo, dispenser cleaning tank, characterized by comprising: a residual pressure Detchi penetrating the movable element and the engaging projection. 6. The dispenser washing tank according to claim 3, wherein a recess is provided on a tip end surface of the movable element facing the cap, and a spring member is provided between the bottom in the recess and the cap. A dispenser washing tank characterized by being reduced in size. 7. The dispenser cleaning tank according to claim 4, wherein a small diameter portion is formed in a cap side portion of the mover.
A dispenser cleaning tank, wherein a spring member is contracted between the movable member and the cap in a gap formed between the small diameter portion and the inner peripheral surface of the residual pressure release passage. 8. The dispenser cleaning tank according to claim 3, wherein a guide surface of a dispensing head is formed on an upper surface of the engagement protrusion, the guide surface having a downward slope toward a tip. Dispenser cleaning tank.