JP5871375B2 - Dispenser cleaning container safety device - Google Patents

Description

  The present invention relates to a safety device for a dispenser cleaning container, and more particularly to a safety device for a dispenser cleaning container used when cleaning a piping path of a draft beer dispenser, for example.

  In general, when cleaning the piping path of the draft beer dispenser, first, the dispensing head is removed from the beer barrel, and the dispensing head is mounted on the mounting body of the cleaning container containing the cleaning liquid. Thereafter, for example, a carbon dioxide gas cylinder, which is a pressurized gas supply source, is connected to the dispense head via a gas hose and a pressure reducing valve to supply carbon dioxide gas into the cleaning container. Then, the cleaning liquid in the container is pressurized by the carbon dioxide gas supplied into the cleaning container, and the pressurized cleaning liquid is flowed to the pipe path of the dispenser via the mounting body and the dispense head to perform the cleaning operation.

  Conventionally, as a dispenser cleaning container used for cleaning the piping path of this type of dispenser, for example, a tapered diameter-reducing step portion that decreases in diameter toward the inside of the container is formed at the mouth of the container body that stores the cleaning liquid. In addition, a cross-section that is attached to the mouth by, for example, a bayonet fastening method, and that has a hollow sleeve that can be inserted into the mouth on a mounting body that is detachably attached to the dispensing head, and that can be fitted into the reduced diameter step portion in the hollow sleeve. An inverted U-shaped packing ring is provided, pressurized gas supplied via the dispense head is pressurized to the cleaning liquid in the container body, and the pressurized cleaning liquid is supplied from the inside of the device body to the dispenser side via the dispense head. There is known a structure having such a structure (see, for example, Patent Document 1).

  In the thing of the said patent document 1, in order to control removal of a mounting body itself, the plunger for a reverse rotation can be slid to the mounting body on the engagement flange by which the front-end | tip was provided in the opening part from the upper part The lock mechanism is elastically biased so that the tip can protrude into a gap provided in the engagement flange.

  In addition, as a means for solving the problem when removing the dispense head, for example, an attachment mechanism for attaching the dispense head to the mouth of the container body, and prohibiting the removal of the dispense head by engaging with this attachment mechanism, A movable member {specifically, a shaft member, an O-ring} provided to be movable between a prohibition position capable of ensuring the sealing of the container main body and an allowable position allowing the removal of the dispensing head and releasing the internal pressure of the container main body. Are known (for example, see Patent Document 2).

JP 2009-96471 A (Claims, FIGS. 3 to 5) JP 2000-109193 A (Claims, FIGS. 1 to 4)

  However, in the one described in Patent Document 1, since the packing ring having an inverted U-shaped cross section is mounted on the outer periphery of the hollow sleeve provided in the mounting body, the mounting body is detached from the container body. If the process is repeated, the packing ring may move out of the hollow sleeve. Due to such a shift of the packing ring, the sealing performance of the packing ring at the time of cleaning is deteriorated, and there is a concern that the gas remaining in the container main body at the time of removing the mounting body from the mouth becomes insufficient. Moreover, in the thing of patent document 1, when removing a mounting body, after releasing the lock | rock state of a lock mechanism, it is necessary to remove a mounting body, and there exists a possibility that removal may be troublesome.

  Moreover, although the structure described in Patent Document 2 has a structure in which the dispense head cannot be removed when the internal pressure of the container main body is high, it is necessary to separately provide an internal pressure of the container main body, that is, a degassing mechanism for residual gas. Therefore, there are problems that the structure becomes complicated and that it takes time and effort to remove the dispensing head. Moreover, in the thing of patent document 2, the degassing of the residual gas at the time of removing a mounting body from a container main body is not mentioned.

  The present invention has been made in view of the above circumstances, and ensures the sealing performance of the attachment portion between the dispenser cleaning container and the dispense head, facilitates attachment and removal, and safely removes residual gas at the time of removal. It is an object of the present invention to provide a safety device for a dispenser cleaning container which is discharged to the outside.

  In order to achieve the above object, a dispenser cleaning container safety device according to the present invention is attached to a container main body for storing cleaning liquid and a mouth of the container main body with a seal member interposed therebetween, so that the dispensing head can be attached and detached. A mounting body to be mounted and a pressurized gas supplied through the dispensing head, which is provided on the mounting body and supplied through the dispensing head, is supplied into the container body, and a cleaning liquid pressurized by the pressurized gas is dispensed by the dispenser. A dispenser cleaning container having a valve member to be supplied to the side, wherein the mounting body includes a cylindrical mounting portion having a female screw portion screwed into a male screw portion provided in a mouth portion of the container body, The cylindrical mounting portion includes a circumferential groove having an inner wall facing the inner circumferential surface of the mouth portion, and the sealing member is a fitting provided in the circumferential groove. A base having a fitting ridge that can be fitted in the fitting groove, a flexible first seal piece that can contact the inner circumferential surface of the mouth, and an inner wall of the circumferential groove that can be contacted. It is made of a synthetic rubber member that integrally forms a flexible second seal piece, and the first seal piece and the second seal piece are formed in an expanding taper shape toward the tip, A tapered surface is formed on the inner peripheral surface of the mouth portion that expands toward the upper end so as to gradually release contact with the first seal piece of the seal member when the mounting body is removed. (Claim 1). In this case, the fitting groove is constituted by first and second fitting grooves provided in the corners of the inner wall and the bottom wall of the circumferential groove, and the fitting ridges are respectively provided in the first and second fitting grooves. It is preferable that the first and second fitting protrusions can be fitted in the first and second fitting grooves (Claim 2).

  With this configuration, the seal member can be securely attached to the mounting body, and the first sealing piece of the seal member is screwed into the mouth portion of the container body by screwing the mounting body into the mouth portion of the container body. The second seal piece contacts the inner wall of the circumferential groove provided in the mounting body. When the gas for feeding is supplied into the container body, the first seal piece is pressed against the inner peripheral surface of the mouth by the gas pressure, and the second seal piece is pressed against the inner wall of the peripheral groove. .

  Further, when removing the mounting body from the mouth, when the screwed state of the mounting body and the mouth is released, the tip of the first seal piece moves from the inner peripheral surface of the mouth toward the expanding taper surface, and gradually. In addition, the contact between the first seal piece and the inner peripheral surface of the mouth is released, and the gas remaining in the container body can be discharged to the outside.

  In this case, the fitting groove provided in the circumferential groove of the mounting body is constituted by the first and second fitting grooves provided in the corner portion of the inner wall and the bottom wall of the circumferential groove, By forming the fitting ridges provided on the base with the first and second fitting ridges that can be fitted into the first and second fitting grooves, respectively, the sealing member is formed on the circumferential groove. It can be fitted and fixed at two orthogonal positions.

  According to a third aspect of the present invention, in the safety device for a dispenser cleaning container according to the first or second aspect, the screw of the male screw portion and the female screw portion is formed by a double thread having a screw engagement position in a 180 ° direction. It is characterized by being.

  By configuring in this way, even if the strength is doubled by the number of screw windings, the mounting body can be rotated once as a screw feed amount and the screw pitch can be moved by two pitches. As with the number, attachment and removal of the mounting body can be facilitated.

  Further, in the safety device for a dispenser cleaning container according to any one of claims 1 to 3, a start position of a screw of a male screw portion provided in a mouth portion of the container body is provided in an opening end portion of the mouth portion. It is preferable to provide the start position of the screw of the female thread portion provided at the cylindrical mounting portion of the mounting body, below the standing cylindrical portion, and above the hanging cylindrical portion provided at the opening end of the cylindrical mounting portion. Item 4).

  By comprising in this way, when attaching a mounting body to the opening | mouth part of a container main body, it can prevent that a mounting body inclines.

  Further, the invention according to claim 5 is the dispenser cleaning container safety device according to any one of claims 1 to 4, wherein the male screw portion and the female screw portion have a flat end. And

  By configuring in this way, even if the mounting body is forcibly tightened in an inclined state, the screw thread provided at the mouth of the container body is flat because the tip of the thread is flat. Since the female screw portion that is screwed onto the surface abuts on the surface, it is not further tightened.

According to a sixth aspect of the present invention, in the dispenser cleaning container safety device according to any one of the first to fifth aspects, the mounting body includes a pressurized gas supply recess having an open upper end, and the pressurized gas supply recess. A guide tube portion that communicates with a communication port provided in the center of the bottom portion of the bottom portion and extends downward, and has a small hole for circulating a pressurized gas in the bottom portion, and the valve member is configured to supply the pressurized gas. A head that is accommodated in the recess leaving a gap for the pressurized gas flow path, and a leg that is suspended under the head and is air-tightly and slidably inserted into the guide tube portion; A cleaning liquid flow passage that opens to the upper end surface of the head and the lower side surface of the leg, and a closing lid that is provided at the lower end of the leg and is capable of contacting and separating from the lower end surface of the guide tube portion. Formed by a synthetic rubber member, and the bottom of the compressed gas supply recess A dispenser mounted between the mounting body and a spring member having a biasing force (elastic force) that is deflated between the head and the head and constantly presses the closing lid against the lower end surface of the guide tube portion. When the head is operated, the cleaning liquid flow passage is formed so as to be able to communicate with the inside of the container body against the urging force (elastic force) of the spring member, and the spring member is removed when the dispensing head is removed from the mounting body. The closing lid closes the lower end surface of the guide cylinder portion by the urging force (elastic force) of the guide cylinder, and the residual gas in the container body is formed to be discharged to the outside through the small hole and the gap for the pressurized gas flow. It is characterized by.

  With this configuration, when the dispense head is attached to the mounting body attached to the mouth of the container body and the dispense head is operated, the valve member moves downward against the biasing force (elastic force) of the spring member. The cleaning liquid flow passage communicates with the inside of the container body. In this state, the pressurized gas supplied via the dispense head can be supplied into the container body, and the cleaning liquid pressurized by the pressurized gas can be supplied to the dispenser side.

  Further, when the dispensing head is removed from the mounting body, the valve member is moved upward by the urging force (elastic force) of the spring member, the communication between the cleaning liquid flow path and the inside of the container body is blocked, and the gas remaining in the container body Is discharged to the outside through a small hole and a gap for pressure gas distribution.

  In addition, the invention according to claim 7 is the safety device for the dispenser cleaning container according to claim 6, wherein the outer peripheral surface is projected on the upper surface of the bottom of the pumped gas supply recess on the concentric circle of the communication port. An annular upright portion having a narrow taper shape toward the bottom, and is formed on the lower surface of the head portion of the valve member so as to be able to fit into the annular upright portion, and has a flexibility capable of being pressed against the narrow taper surface. It is characterized by forming a fitting groove portion having an outer peripheral wall.

  With this configuration, when the gas for feeding is supplied by the operation of the dispense head in a state where the dispense head is attached to the mounting body, the outer peripheral wall of the fitting concave groove portion is caused by the gas pressure so that the upper end of the annular upright portion is Toward the outer peripheral surface of the narrow taper shape.

  According to this invention, since it is configured as described above, the following excellent effects can be obtained.

  (1) According to the invention described in claim 1, the first seal piece is pressed against the inner peripheral surface of the mouth portion by the gas pressure of the gas for feeding supplied into the container body, and the second seal piece is Since it is pressed by the inner wall of the circumferential groove, the sealing performance of the attachment portion between the container main body and the mounting body can be ensured. Further, since the seal member has the first seal piece and the second seal piece which are formed in an expanding taper shape toward the distal end, it has an influence on the tightening force of screwing into the mouth portion of the mounting body. It is possible to make the sealing state constant without receiving.

  In addition, without stopping the supply of carbon dioxide from the carbon dioxide cylinder after the cleaning operation, even if the mounting body is removed from the mouth, the gas remaining in the container body can be gradually discharged to the outside. , You can safely remove the mounting body.

  In this case, the fitting groove provided in the circumferential groove of the mounting body is constituted by the first and second fitting grooves provided in the corner portion of the inner wall and the bottom wall of the circumferential groove, By forming the fitting ridges provided on the base with the first and second fitting ridges that can be fitted into the first and second fitting grooves, respectively, the sealing member is formed on the circumferential groove. Since it can be fitted and fixed at two orthogonal positions, the seal member will not come off even when the first seal piece of the seal member receives a force in the opposite direction of the inside and outside during attachment and removal of the mounting body. Therefore, the sealing performance of the sealing member can be further stabilized, and the gas remaining in the container body when the mounting body is removed can be surely discharged (Claim 2).

  (2) According to the invention described in claim 3, even if the screw feed amount is doubled to ensure safety, the mounting body can be rotated once and the screw pitch can be moved by two pitches. In addition to 1), the attachment body can be easily attached and detached.

  (3) According to the invention described in claim 4, when the mounting body is attached to the mouth of the container body, the mounting body can be prevented from being inclined, so in addition to the above (1) and (2) Further, it is possible to prevent the mounting body from being slanted, and the mounting body can be securely attached to the mouth of the container body.

  (4) According to the invention of claim 5, in addition to the above (3), the tip of the threaded portion is flat even if the mounting body is forcibly tightened in an inclined state. Therefore, since the female screw portion that is screwed into the male screw portion provided in the mouth portion of the container body abuts on the surface, the screw cannot be further tightened, so that the screw can be prevented from being damaged.

  (5) According to the invention described in claim 6, when the dispensing head is removed from the mounting body, the communication between the cleaning liquid flow passage and the inside of the container main body is blocked, and the gas remaining in the container main body has a small hole for pressure gas distribution and Since the gas is discharged to the outside through the gap, only the gas remaining in the container body can be safely discharged to the outside.

  (6) According to the seventh aspect of the invention, the outer peripheral wall of the fitting groove provided in the valve member by the gas pressure of the supplied pressure-feeding gas is provided concentrically with the cleaning liquid flow port of the mounting body. In addition to the above (1) to (5), the sealing performance can be further improved because the outer peripheral surface of the narrow tapered shape is pressed toward the upper end of the annular upright portion.

It is a schematic block diagram which shows the use condition of the container for dispenser washing | cleaning which concerns on this invention. It is sectional drawing (a) which shows the use condition of the container for dispenser washing | cleaning which concerns on this invention, and the I section expanded sectional view (b) of (a). It is an expanded sectional view which shows the attachment state of the valve member in this invention. It is sectional drawing which shows the non-use state of the container for dispenser cleaning which concerns on this invention. It is a cross-sectional perspective view of the mounting body in this invention. It is sectional drawing which shows the state which removed the dispensing head from the mounting body of the container for a dispenser washing | cleaning which concerns on this invention. It is the perspective view (a) which shows the opening | mouth part of the container main body in this invention, and the top view (b) of a container main body. They are the principal part expanded sectional view (a) which shows the attachment state of the container main body and mounting body in this invention, and the principal part expanded sectional view (b) which shows the state which removes a mounting body from a container main body.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated in detail based on an accompanying drawing. Here, a case will be described in which the dispenser cleaning container safety device according to the present invention is used for a dispenser cleaning container used when cleaning a piping path of a draft beer dispenser.

  A dispenser cleaning container T according to the present invention (hereinafter referred to as a cleaning container T) includes a container main body 1 that contains a cleaning liquid W and a mouth 10 of the container main body 1 as described later, as shown in FIGS. The mounting body 3 is attached via a seal member 5 and is mounted in the mounting body 3 so that the dispensing head 2 is detachably mounted. The operation of the dispensing head 2 supplies the pumped gas into the container body 1. The valve member 4 that supplies the cleaning liquid W pressurized by the pressurized gas to the dispenser 7 side is mainly configured.

  As shown in FIGS. 1 to 3, the dispensing head 2 has an attachment portion 20 having an inward flange portion 21 detachably attached to an attachment portion 30 formed at the upper end of the attachment body 3 at the lower end. It has. In this case, the mounting portion 30 of the mounting body 3 is formed by an outward flange, and has a shape in which linear notches 31 are formed at three locations on the outer periphery of the flange. Therefore, attachment of the dispense head 2 to the mounting body 3 can be performed by a so-called bayonet method.

  The dispensing head 2 includes a body portion 22 having a through passage 22 a penetrating vertically, and a handle 24 that moves the cleaning liquid outlet tube 23 in the through passage 22 a of the body portion 22.

  In this case, a pressure gas introduction port 25 is provided on one side portion of the body portion 22. The pressure gas introduction port 25 and the pressure gas supply means, that is, the carbon dioxide gas cylinder 6 are connected through a gas hose 60 and a pressure reducing valve 61. The carbon dioxide gas inlet 25 can be opened and closed by a cleaning liquid inlet pipe 23 that moves by operating the handle 24. Further, the lower end surface of the cleaning liquid introducing pipe 23 is formed so as to be able to contact an upper end surface 40a of the head 40 of the valve member 4 disposed in the mounting body 3 described later.

  The mounting body 3 is formed of, for example, a plastic member, and is formed in a lid shape as shown in FIGS. 2, 4, and 5, and is a male screw formed in the mouth 10 of the container body 1 on the inner side. A cylindrical mounting portion 33 provided with a female screw portion 32 capable of being screwed (screwed) to the portion 11 and a circumferential groove having an inner wall 34a facing the inner peripheral surface of the mouth portion 10 at the upper portion of the cylindrical mounting portion 33 34, and the seal member 5 is fitted in the circumferential groove 34. In this case, the screws of the male screw portion 11 and the female screw portion 32 are formed by a trapezoidal screw having a flat tip, and are formed by a double thread having a screw engagement position in the 180 ° direction.

  In this way, the screws of the male screw portion 11 and the female screw portion 32 are formed by double threads having a screw engagement position in the direction of 180 °, so that even if the screw feed amount is doubled and safety is ensured, mounting is possible. Since the body 3 can be rotated once and the pitch of the screw can be moved by two pitches, the attachment and detachment of the mounting body 3 from the container body 1 can be facilitated.

  Furthermore, the screw start position 11a of the male screw portion 11 provided at the mouth portion 10 of the container body 1 is provided below the upright cylindrical portion 12 provided at the opening end portion of the mouth portion 10 (see FIG. 7). Although not shown, the screw start position of the female thread portion 32 provided in the cylindrical mounting portion 33 of the mounting body 3 is also provided at the opening end of the cylindrical mounting portion 33 so as to correspond to the screw start position 11a of the male screw portion 11. It is provided above the hanging cylindrical part 35 to be provided.

  The seal member 5 is made of synthetic rubber such as silicon rubber. The seal member 5 is flexible so that it can come into contact with the base 50 having a substantially rectangular cross section fitted into a circumferential groove 34 provided in the cylindrical mounting portion 33 of the mounting body 3 and the inner peripheral surface 10 a of the mouth portion 10. And a flexible second seal piece 52 that can come into contact with the inner wall 34a of the circumferential groove 34 are formed integrally with the first seal piece 51 and the second seal piece 51. The seal piece 52 is formed to have a substantially Y-shaped cross section that forms an expanding taper shape toward the tip. In this case, as shown in FIG. 8, first and second fitting grooves 36a and 36b are provided at the corners of the inner wall 34a and the bottom wall 34b of the circumferential groove 34. In a state where the first and second fitting ridges 50a and 50b protruding from the two adjacent sides of the base 50 of the seal member 5 are fitted into the second fitting grooves 36a and 36b, The seal member 5 is fitted in the groove 34. By configuring in this way, the first and second fitting grooves 36a and 36b provided at the corners of the inner wall 34a and the bottom wall 34b of the circumferential groove 34, that is, at two orthogonal positions, are provided on the seal member 5 with each other. The seal member 5 can be fitted and fixed in the circumferential groove 34 in a state in which the first and second fitting protrusions 50a and 50b protruding from two adjacent sides of the base 50 are fitted. Thereby, the seal member 5 can be reliably fixed to the circumferential groove 34 of the mounting body 3. Therefore, the seal member 5, particularly the first seal piece 51, receives a force on the inner side when the mounting body 3 is attached and receives a force on the opposite outer side when the mounting body 3 is removed, but the seal member 5 is detached. There is nothing. Further, even if the mounting body 3 is repeatedly mounted (detached) on the mouth portion 10 of the container body 1, there is no fear that the position of the seal member 5 is shifted.

  In addition, the container main body 1 is formed, for example with stainless steel. The mouth portion 10 of the container main body 1 is formed to have a diameter slightly smaller than the outer diameter of the container main body 1, and a first portion of the seal member 5 is attached to the upper portion of the inner peripheral surface 10 a when the mounting body 3 is removed. A tapered surface 13 is formed which expands toward the upper end so as to gradually release the contact with the seal piece 51.

  As described above, the sealing member 5 is formed in a substantially Y-shaped cross section, and the tapered surface 13 that expands toward the upper end is formed on the inner peripheral surface 10 a of the mouth portion 10, whereby the mouth portion 10 of the container body 1. By screwing the mounting body 3 into the first sealing piece 51, the first sealing piece 51 of the sealing member 5 comes into contact with the inner peripheral surface 10 a of the mouth portion 10 of the container body 1, and the second sealing piece 52 is placed around the mounting body 3. It contacts the inner wall 34a of the groove 34. In this state, when the gas for pressure feeding is supplied into the container main body 1, the first seal piece 51 is pressed against the inner peripheral surface 10 a of the mouth portion 10 by the gas pressure, and the second seal piece 52 is Since it is pressed against the inner wall of the circumferential groove 34, the sealing performance can be improved (see FIG. 8A).

  Further, when the mounting body 3 is removed from the mouth portion 10, when the threaded state of the mounting body 3 and the mouth portion 10 is released, the distal end portion of the first seal piece 51 expands from the inner peripheral surface 10 a of the mouth portion 10. It moves to the surface 13 side, the contact between the first seal piece 51 and the inner peripheral surface of the mouth portion 10 is gradually released, and the gas remaining in the container body 1 can be discharged to the outside. Therefore, the gas remaining in the container body 1 can be safely discharged to the outside at the same time as the mounting body 3 is removed from the container body 1.

  The mounting body 3 includes a pressure-feed gas supply recess 37 whose upper end is open, and a guide cylinder portion 37c that extends downward and communicates with a communication port 37b provided at the center of the bottom portion 37a of the pressure-feed gas supply recess 37. And a small hole 37d for pressurized gas flow is provided in the bottom portion 37a. Further, on the concentric circle of the communication port 37b on the upper surface of the bottom portion 37a of the mounting body 3, an annular upright portion 38 whose outer peripheral surface 38a is narrowly tapered toward the upper end is projected. A siphon tube 39 extending to the bottom of the container body 1 is connected to the guide cylinder portion 37c.

  A degassing valve 80 that can be manually operated via a degassing port 81 is provided on the side wall portion of the mounting body 3 below the bottom 37 a of the pressurized gas supply recess 37.

  On the other hand, the valve member 4 is formed of a synthetic rubber such as NBR (acrylonitrile butadiene rubber). The valve member 4 has a flat head portion 40 which is accommodated in the pressure gas supply recess 37 leaving a gap S for the pressure gas flow passage, and a lower portion of the head portion 40. A cylindrical leg 41 that is air-tightly and slidably inserted into 37c, a cleaning liquid flow passage 42 that opens on the upper end surface 40a of the head 40 and the lower side surface of the leg 41, and the leg 41 A closing lid 43 provided at the lower end and capable of coming into contact with and separating from the lower end surface of the guide cylinder portion 37c. In this case, the closing lid 43 is formed in a disk shape having an attachment hole 43a through which the small diameter cylindrical portion 44 provided at the lower end of the leg portion 41 is inserted, and is attached to the small diameter cylindrical portion 44 through the attachment hole 43a. In this state, it is fixed to the leg portion 41 of the valve member 4 by a retaining pin 46 inserted into a through hole 45 orthogonal to the axial direction provided on the lower end side of the small diameter cylindrical portion 44. The closing lid 43 may be fixed to the leg portion 41 by using a fixing means other than the retaining pin 46 such as adhesion or screwing.

  Further, the valve member 4 is contracted between the bottom portion 37a and the head portion 40 of the pressurized gas supply recess 37, and has a biasing force (elastic force) that presses the normally closed lid 43 against the lower end surface of the guide cylinder portion 37c. A spring member 47 such as a compression spring is provided. When the closing head 43 is pressed against the lower end surface of the guide tube portion 37c by the biasing force (elastic force) of the spring member 47, the valve member 4 is provided in a state where the dispensing head 2 is removed from the mounting body 3. The cleaning liquid flow passage 42 thus formed does not communicate with the inside of the container body 1. Further, when the dispensing head 2 is attached to the mounting body 3 and the handle 24 is operated (rotated downward), the lower end surface of the cleaning liquid introduction pipe 23 of the dispensing head 2 contacts the upper surface of the head 40 of the valve member 4. The valve member 4 is moved downward against the urging force (elastic force) of the spring member 47. Then, the closing lid 43 is separated from the lower end surface of the guide cylinder portion 37 c, the lower end opening of the cleaning liquid flow passage 42 is exposed in the container main body 1, and the cleaning liquid flow passage 42 communicates with the inside of the container main body 1.

  In addition, a fitting concave groove portion 48 is formed on the lower surface of the head portion 40 of the valve member 4 so as to be fitted to an annular upright portion 38 provided in the pressurized gas supply concave portion 37 of the mounting body 3. In this case, the fitting concave groove portion 48 is formed with a flexible outer peripheral wall 48 a that can be pressed against a narrow taper surface formed on the outer peripheral surface 38 a of the annular upright portion 38.

  As described above, on the upper surface of the bottom of the pressurized gas supply recess 37 provided in the mounting body 3, the outer peripheral surface 38 a protrudes from the upper end of the narrow tapered shape toward the upper end, while the head of the valve member 4. By forming a fitting concave groove portion 48 having a flexible outer peripheral wall 48a formed on the lower surface so as to be fitted to the annular upright portion 38 and capable of being press-contacted to the narrow tapered outer peripheral surface 38a. The outer peripheral wall 48 a of the fitting groove 48 can be pressed against the narrow tapered outer peripheral surface 38 a of the annular upright portion 38 by the gas pressure of the pumped gas supplied into the gas supply recess 37. Therefore, when the dispenser 7 is cleaned, it is possible to prevent the pressurized gas supplied into the container main body 1 via the dispense head 2 from flowing into the cleaning liquid supply side, that is, the siphon tube 39 side.

  When cleaning the piping path of the dispenser 7 using the cleaning container T having the mounting body 3 and the dispensing head 2 configured as described above, first, the mouth 10 of the container body 1 containing the cleaning liquid W is used. The male thread part 11 and the female thread part 32 of the mounting body 3 are screwed together to mount the mounting body 3 to the container body 1. Next, the attachment part 20 of the dispense head 2 is attached to the attachment part 30 formed at the upper end of the mounting body 3 by the bayonet method.

  After attaching the mounting body 3 and the dispensing head 2 to the container body 1, the carbon dioxide gas cylinder 6 is connected to the dispensing head 2 via the gas hose 60 and the pressure reducing valve 61, while the beer hose 70 is connected to the cleaning liquid outlet pipe 23 of the dispensing head 2. The dispenser 7 is connected via

  In the dispense head 2 connected in this way, the cleaning liquid introduction pipe 23 is moved downward by rotating the handle 24 downward, and the lower end surface of the cleaning liquid introduction pipe 23 is located on the head 40 of the valve member 4. Since the valve member 4 is moved downward against the urging force (elastic force) of the spring member 47 in contact with the upper surface, the lower end opening of the cleaning liquid flow passage 42 is exposed in the container body 1 and the cleaning liquid flow passage. 42 communicates with the siphon tube 39. The carbon dioxide gas supplied from the carbon dioxide gas cylinder 6 through the carbon dioxide gas inlet 25 is the gap S between the pressurized gas supply recess 37 of the mounting body 3 and the head 40 of the valve member 4 and the small hole 37d for pressurized gas distribution. Then, the cleaning liquid W filled in the container body 1 is pressurized. The pressurized cleaning liquid W passes through the siphon tube 39 and the cleaning liquid flow passage 42, enters the dispenser 7 through the beer hose 70, passes through the piping path, and then is discharged from the tap 71 to perform the cleaning operation. Can do.

  During the cleaning operation, the gas pressure of the carbon dioxide gas supplied into the container body 1 acts on the first seal piece 51 and the second seal piece 52 of the seal member 5, and the first seal piece 51 has a mouth portion. The second seal piece 52 is pressed against the inner wall 34a of the circumferential groove 34 in which the seal member 5 is fitted. Therefore, the attachment part of the container main body 1 and the mounting body 3 is reliably sealed. Further, since the carbon dioxide gas supplied (inflowed) into the pressurized gas supply recess 37 of the mounting body 3 is filled in the pressurized gas supply recess 37 until it flows into the container body 1 through the small hole 37d for pressurized gas circulation, The gas pressure of the filled carbon dioxide gas acts on the outer peripheral wall 48 a of the fitting groove 48 of the valve member 4, and presses the outer peripheral wall 48 a against the narrow tapered outer peripheral surface 38 a of the annular upright portion 38. Therefore, when the dispenser 7 is cleaned, it is possible to prevent the pressurized gas supplied into the container main body 1 via the dispense head 2 from flowing into the cleaning liquid supply side, that is, the siphon tube 39 side.

  When the dispensing head 2 and the mounting body 3 are removed from the container main body 1 after the cleaning operation is completed, it is removed after closing the main plug of the carbon dioxide gas cylinder 6.

  When removing the dispensing head 2 from the mounting body 3, the handle 24 is rotated upward to move the cleaning liquid outlet tube 23 upward, and then the dispensing head 2 is removed from the mounting body 3. In this state, the valve member 4 is moved upward by the urging force (elastic force) of the spring member 47, and the closing lid 43 of the valve member 4 is pressed against the lower end surface of the guide cylinder portion 37c. As a result, the cleaning liquid flow passage 42 provided in the valve member 4 is blocked from the inside of the container main body 1, so that the carbon dioxide remaining in the container main body 1 flows into the small holes 37 d for pressurized gas circulation and the pressurized gas supply recess 37. The valve member 4 is discharged to the outside through the gap S of the head 40. Therefore, even if the dispensing head 2 is removed from the mounting body 3 with the dispensing head 2 attached without stopping the supply of carbon dioxide gas from the carbon dioxide cylinder after the cleaning operation, residual moisture in the container body 1 is inadequate. There is no worry of splashing outside or making loud noises.

  Further, when removing the mounting body 3 from the container body 1, when the threaded state of the mounting body 3 and the mouth portion 10 is released, the tip of the first seal piece 51 expands from the inner peripheral surface 10 a of the mouth portion 10. Since the first seal piece 51 and the inner peripheral surface of the mouth portion 10 are gradually released from moving toward the open tapered surface 13 side, the gas remaining in the container body 1 can be discharged to the outside. At the same time as removing the mounting body 3 from the container body 1, the gas remaining in the container body 1 can be safely discharged to the outside. Therefore, when removing the mounting body 3 from the container main body 1, there is no fear that the residual moisture in the container main body 1 will be inadvertently scattered outside or make a loud sound.

T Dispenser cleaning container W Cleaning liquid 1 Container body 2 Dispensing head 3 Mounted body 4 Valve member 5 Seal member 10 Mouth part 10a Inner peripheral surface 11 Male thread part 11a Screw start position 12 Standing cylindrical part 13 Expanding taper surface 23 Cleaning liquid outlet pipe 24 Handle 32 Female thread portion 33 Cylindrical mounting portion 34 Circumferential groove 34a Inner wall 34b Bottom wall 35 Suspended cylindrical portion 36a First fitting groove 36b Second fitting groove 37 Pressure gas supply recess 37a Bottom portion 37b Communication port 37c Guide tube portion 37d Small hole 38 for pressure-feed gas flow Annular upright portion 38a Outer peripheral surface 40 Valve member head portion 41 Valve member leg portion 42 Washing liquid flow passage 43 Closing lid 47 Spring member 48 Fitting groove 48a Outer peripheral wall 50 Seal member base portion 50a First fitting protrusion 50b Second fitting protrusion 51 First seal piece 52 Second seal piece S Clearance

Claims (7)

A container main body that contains the cleaning liquid, a mounting member that is attached to the mouth of the container main body with a seal member interposed therebetween, and a mounting body that is detachably mounted on the dispensing head, and is provided on the mounting body. In the dispenser cleaning container, comprising a valve member that supplies the pressurized gas supplied through the dispense head into the container body and supplies the cleaning liquid pressurized by the pressurized gas to the dispenser side.
The mounting body includes a cylindrical mounting portion having a female screw portion that is screwed into a male screw portion provided in a mouth portion of the container body, and is opposed to an inner peripheral surface of the mouth portion at an upper portion of the cylindrical mounting portion. Comprising a circumferential groove having an inner wall;
The seal member includes a base having a fitting protrusion that can be fitted in a fitting groove provided in the circumferential groove, and a flexible first seal that can contact the inner circumferential surface of the mouth. A synthetic rubber member integrally forming a piece and a flexible second seal piece that can come into contact with the inner wall of the circumferential groove, and the first seal piece and the second seal piece Forming each other in an expanding taper shape,
A tapered surface is formed on an upper portion of the inner peripheral surface of the mouth so as to expand toward the upper end so as to gradually release contact with the first seal piece of the seal member when the mounting body is removed. ,
A dispenser cleaning container safety device. In the dispenser cleaning container safety device according to claim 1,
The fitting groove is composed of first and second fitting grooves provided at the corners of the inner wall and the bottom wall of the circumferential groove, and the fitting ridges are the first and second fitting grooves, respectively. A dispenser cleaning container safety device comprising first and second fitting ridges that can be fitted in fitting grooves. In the safety device of the dispenser washing container according to claim 1 or 2,
The safety device for a dispenser cleaning container, wherein the screw of the male screw portion and the female screw portion is formed by a double thread having a screw engagement position in a 180 ° direction. In the safety device of the dispenser washing container according to any one of claims 1 to 3,
The start position of the screw of the external thread portion provided at the mouth portion of the container body is provided below the standing cylindrical portion provided at the opening end portion of the mouth portion, and the screw of the internal thread portion provided at the cylindrical mounting portion of the mounting body The dispenser cleaning container safety device is characterized in that the starting position is provided above a hanging cylindrical portion provided at an opening end of the cylindrical mounting portion. In the safety device of the dispenser washing container according to any one of claims 1 to 4,
The safety device for a dispenser cleaning container, wherein the male screw portion and the female screw portion have a flat tip. In the safety device of the dispenser washing container according to any one of claims 1 to 5,
The mounting body includes a pumping gas supply recess having an upper end opened, and a guide tube portion that extends downward and communicates with a communication port provided in the center of the bottom of the pumping gas supply recess. Equipped with a small hole for pressurized gas distribution,
The valve member has a head housed in the pumped gas supply recess leaving a gap for the pumped gas flow path, and is suspended below the head, and is air-tightly slid and slides in the guide tube portion. A leg portion that is freely inserted, a cleaning liquid flow passage that opens to an upper end surface of the head portion and a lower side surface of the leg portion, a lower end surface of the leg portion, and is in contact with a lower end surface of the guide tube portion. A detachable closing lid, and formed of a synthetic rubber member,
A spring member that is contracted between the bottom portion of the pumping gas supply recess and the head portion and that has a biasing force that constantly presses the closing lid against the lower end surface of the guide tube portion;
The cleaning liquid flow passage is formed so as to be able to communicate with the inside of the container body against the biasing force of the spring member by operation of the dispensing head mounted on the mounting body,
When the dispensing head is removed from the mounting body, the closing lid closes the lower end surface of the guide cylinder portion by the urging force of the spring member, and the residual gas in the container body is transferred to the small holes and gaps for the pressure gas distribution. It is formed so that it can be discharged to the outside through
A dispenser cleaning container safety device. The safety device for a container for cleaning a dispenser according to claim 6,
On the upper surface of the bottom of the pumped gas supply recess, a concentric circle of the communication port is provided, and the outer peripheral surface has a narrow taper-shaped annular upstanding portion toward the upper end,
Formed on the lower surface of the head portion of the valve member is a fitting concave groove portion having a flexible outer peripheral wall that is formed so as to be fitted to the annular upright portion and can be pressed against the narrow tapered surface.
A dispenser cleaning container safety device.

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