JP2013018491A - Elbow and liquid ejecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid ejecting device allowing easy setting of a bottle.SOLUTION: The liquid ejecting device includes: an elbow 1 connected to a mouth part Q of a PET bottle P; a cock 2 connected to the elbow 1; and a stand 3. The elbow 1 has: a bottle connection part 12 which is connected to the mouth part Q of the bottle; a cock connection part 13 to which the cock 2 is connected; a cylindrical shaft part 4 which is suspended on an extension of a center axis C of the bottle connection part 12; an air introducing pipe 5 which is inserted and provided in the cylindrical shaft part 4; and valves 7 and 27 which are provided at least at either the lower end of the cylindrical shaft part 4 or the tip of the air introducing pipe 5. The stand 3 has a vertical hole 8 in which the cylindrical shaft part 4 of the elbow 1 is inserted from above.

Description

  The present invention relates to an elbow for pouring liquid from a bottle and a liquid pouring device.

The present applicant connects an elbow and a cock to the mouth of a plastic bottle, holds it in a stand-up state on the stand, and allows the beverage in the plastic bottle to be poured out by operating the lever of the cock. Has been developed and a patent application has been filed (see Patent Document 1).
In such a beverage server, it is necessary to introduce air into the plastic bottle when the beverage is poured out from the cock, and the above-mentioned conventional one forms the air hole 12 on the side surface of the connecting pipe 11 of the cock 4, An air introduction pipe 13 made of a resin pipe is connected to the air hole 12, and the air introduction pipe 13 is inserted into the PET bottle 1 through the elbow 3. When the cock 4 is attached, as shown in FIG. 5 of the same document, in order to prevent the beverage in the plastic bottle from entering the air introduction tube 13, the air is introduced with the air hole 12 closed with the lid 15. The tube 13 was inserted into the elbow 3 and inserted into the plastic bottle 1. After the plastic bottle 1 was set on the stand 5, the lid 15 was removed to open the air hole 12. In addition, a check valve 14 is provided at the tip of the air introduction pipe 13 in order to prevent the beverage from flowing into the air introduction pipe.

  In the above conventional beverage server, when the cock is attached, the air introduction pipe must be inserted into the elbow, and the air hole must be closed or removed with a lid, which is cumbersome. .

JP 2009-120221 A

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide an elbow and a liquid dispensing device in which the bottle can be set more easily.

  In order to achieve the above object, an elbow according to the invention described in claim 1 includes a bottle connecting portion connected to a mouth portion of a plastic bottle, a cock connecting portion to which a cock is connected, and an extension of the central axis of the bottle connecting portion. Provided in at least one of a cylindrical shaft portion that hangs down on the line, an air introduction tube that is inserted into the cylindrical shaft portion, a lower end portion of the cylindrical shaft portion, and a tip portion of the air introduction tube And a valve.

  The elbow according to the invention of claim 2 is provided with the valve at the lower end portion of the cylindrical shaft portion in addition to the structure of the invention of claim 1, and the air inlet opens when the plastic bottle is set on the stand. The air intake is closed when the plastic bottle is removed from the stand.

  The elbow according to the invention described in claim 3 is characterized in that, in addition to the configuration of the invention described in claim 2, the valve is made of a rubbery material, and a slit is provided in the central portion to form an air intake.

  A liquid dispensing apparatus according to a fourth aspect of the present invention includes an elbow connected to a mouth portion of a plastic bottle, a cock connected to the elbow, and a stand, and the elbow includes a bottle connecting portion connected to the bottle mouth portion, A cock connecting portion to which the cock is connected, a cylindrical shaft portion that is suspended from an extension line of the central axis of the bottle connecting portion, an air introduction pipe that is provided by being inserted into the cylindrical shaft portion, and a cylindrical shaft The stand has a vertical hole into which the cylindrical shaft portion of the elbow is inserted from above.

  In addition to the configuration of the invention according to claim 4, the stand has a valve opening provided at the bottom of the vertical hole, and the cylindrical shaft portion is fitted into the vertical hole. The valve sometimes comes into contact with the valve opening to open the air intake, and when the cylindrical shaft is removed from the vertical hole, the valve is separated from the valve opening to close the air intake.

  Since the elbow according to the first aspect of the present invention is provided by inserting the air introduction pipe into the cylindrical shaft portion that is suspended from the extended line of the central axis of the bottle connecting portion, the elbow is connected to the bottle mouth portion. Since the air introduction pipe is attached and it is not necessary to insert the air introduction pipe into the elbow when the cock is attached, it becomes easy to set the plastic bottle. Moreover, since the valve is provided in at least any one of the lower end part of a cylindrical axial part, and the front-end | tip part of an air introduction pipe | tube, it can prevent that the liquid in a PET bottle flows in into an air introduction pipe | tube. By inserting the cylindrical shaft portion into the vertical hole of the stand, the bottle can be stably held in a standing state on the stand.

  In addition to the features of claim 1, the elbow according to the invention of claim 2 is provided with a valve at the lower end of the cylindrical shaft portion, and when the plastic bottle is set on the stand, the air intake port opens, Since the air intake port is closed when the stand is removed from the stand, it is not necessary to open and close the air intake port by hand, which makes it easier to set the plastic bottle.

  In addition to the features of claim 2, the elbow according to the invention of claim 3 has a simple valve structure because the valve is made of a rubbery material and a slit is formed in the central portion to form an air intake. It can be manufactured at low cost, and the air intake port opens and closes stably as the cylindrical shaft part is inserted into and removed from the vertical hole of the stand.

  In the liquid dispensing apparatus according to the fourth aspect of the present invention, since the air introduction tube is inserted into the cylindrical shaft portion of the elbow of the present invention, there is no need to insert the air introduction tube into the elbow when the cock is attached. It is easy to set the bottle. Moreover, since the valve is provided in at least any one of the lower end part of a cylindrical axial part, and the front-end | tip part of an air introduction pipe | tube, it can prevent that the liquid in a PET bottle flows in into an air introduction pipe | tube. By inserting the cylindrical shaft portion of the elbow into the vertical hole of the stand, the bottle can be stably held in a standing state on the stand.

  According to a fifth aspect of the present invention, in addition to the feature of the fourth aspect, the liquid dispensing apparatus has a valve opening provided at the bottom of the vertical hole of the stand, and the valve is disposed when the cylindrical shaft portion is fitted into the vertical hole. When the valve comes into contact with the opening, the air intake opens, and when the cylindrical shaft is removed from the vertical hole, the valve is separated from the valve opening, the air intake is closed, and the air intake needs to be opened and closed by hand. This makes it easier to set a plastic bottle.

It is a longitudinal cross-sectional view which expands and shows the principal part of the liquid extraction apparatus of this invention. It is a general view of the liquid extraction apparatus of this invention. (A) is a side view which shows the attachment state of the elbow with respect to a plastic bottle mouth part, (b) is a side view which shows the connection state of the cock with respect to an elbow. It is a side view which shows the state when setting the PET bottle which attached the elbow and the cock to the stand. (A) is a longitudinal cross-sectional view of a valve, (b) is a bottom view of a valve. It is a principal part longitudinal cross-sectional view of the liquid extraction apparatus at the time of attaching a check valve to the front-end | tip part of an air introduction pipe | tube. It is the longitudinal cross-sectional view of a non-return valve, Comprising: (a) has shown the state when a cock is closed, (b) has shown the state when a cock is open.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 2 is an overall view showing an embodiment of the liquid dispensing apparatus of the present invention, and FIG. 1 is an enlarged longitudinal sectional view showing a main part of the liquid dispensing apparatus. As shown in FIG. 2, the liquid dispensing apparatus is configured such that a cock 2 is inserted into a mouth Q (hereinafter referred to as a bottle mouth Q) of a plastic bottle P filled with a liquid W via an elbow 1 of the present invention. This is connected, this is made to stand upside down on the stand 3, and the operation lever 10 of the cock 2 is operated to pour out the liquid W from the plastic bottle P. The plastic bottle P is filled with soup stock liquid type miso W (hereinafter referred to as “liquid miso”). Pour this from the cook 2 into a container E such as rice cake, and mix with hot water and your favorite ingredients. So you can easily make delicious miso soup. The elbow 1, cock 2 and stand 3 are all made of synthetic resin.

As shown in FIG. 1, the elbow 1 of the present invention (hereinafter referred to as elbow 1) is formed in a shape in which a conduit 11 for guiding a liquid miso W is bent obliquely downward from the upper plastic bottle P to the front side. The bottle connection portion 12 for screwing the bottle mouth portion Q is formed in the upward opening portion, and the cock connection portion 13 is formed in the other opening portion. The bottle connection portion 12 is formed with a female screw portion that is screwed with the screw of the bottle mouth portion Q, and a packing is attached so as to be in close contact with the end surface of the bottle mouth portion Q. In addition, substantially L-shaped engaging grooves 14 are formed on both the left and right sides, and a packing is provided to which the end face of the insertion portion 15 of the cock 2 is in close contact.
The elbow 1 further has a cylindrical shaft portion 4 suspended on an extension line of the central axis C of the plastic bottle P, and a circular contact portion 16 on the stand 3 at a spaced position above the cylindrical shaft portion 4. It is formed in a bowl shape.
A through hole 17 is provided in the vertical direction in the center of the cylindrical shaft portion 4 and is inserted into the through hole 17 so that the air introduction pipe 5 stands upright. As shown in FIG. 2, the upper end of the air introduction pipe 5 reaches the bottom of the inverted PET bottle P and protrudes above the liquid level of the liquid miso W. As shown in FIG. 1, a tubular valve mounting member 26 is fitted and attached to the lower end portion of the cylindrical shaft portion 4 from below, and a protrusion formed on the outer peripheral surface of the lower end portion of the valve mounting member 26. 26, the silicon rubber valve 7 is detachably attached. As shown in FIG. 5, the valve 7 has a conical raised portion 18 in the center, and the raised portion 18 is provided with a slit 19 in a cross shape to form an air intake 6.

  As shown in FIG. 1, the stand 3 is formed with a recess 20 for receiving the elbow 1 on the upper surface, and the recess 20 is formed with a seat 21 for receiving the contact portion 16 of the elbow 1. Is provided with a vertical hole 8 into which the cylindrical shaft portion 4 of the elbow 1 is inserted from above. In this way, the abutting portion 16 of the elbow 1 is received by the seat portion 21 of the stand 3, and the cylindrical shaft portion 4 of the elbow 1 is inserted into the vertical hole 8 and held at a spaced position below the seat portion 21. The plastic bottle P can always be stably held vertically at the center of the stand 3. Further, the stand 3 is provided with a protruding valve opening 9 having a hole in the center at the bottom of the vertical hole 8. When the elbow 1 and the cock 2 are connected to the plastic bottle P and set on the stand 3, the valve 7 The air intake 6 is opened when the raised portion 18 is pushed up by the valve opening 9. When the plastic bottle P is lifted and removed from the stand 3, as shown in FIG. 4, the valve opening 9 is separated from the raised portion 18 of the valve 7, so that the air intake 6 of the valve 7 is automatically closed.

  As shown in FIG. 1, the cock 2 has a connecting pipe 22 for connecting to the elbow 1 obliquely upward, and includes a plug 15 to the elbow 1 at the tip of the connecting pipe 22. Protrusions 24 having a circular cross section are provided on both the left and right sides of the, and the protrusions 24 are held so as not to be engaged with the engaging grooves 14 of the elbow 1. The cock 2 is configured such that when the operation lever 10 is tilted forward, a valve (not shown) that closes the liquid spout 25 is pulled up, and the liquid miso W in the plastic bottle P is poured out from the liquid spout 25. is there. When liquid miso W is poured out from the cock 2, air is introduced into the plastic bottle P through the air inlet pipe 5 from the air intake 6 of the valve 7 provided at the lower end of the cylindrical shaft portion 4 of the elbow 1. Liquid miso W can be smoothly poured out without pulsation.

The procedure for setting the PET bottle P on the stand 3 will be described. First, as shown in FIG. 3A, the cap of the bottle mouth Q is removed and the air introduction tube 5 is inserted into the PET bottle P. Then, while turning the elbow 1, the bottle mouth Q is screwed into the bottle connection portion 12 of the elbow 1 to attach the elbow 1. At this time, since the air intake 6 of the valve 7 is closed, the liquid miso W in the plastic bottle P does not flow into the air introduction pipe 5.
Next, as shown in FIG. 3 (b), the insertion portion 15 of the cock 2 is inserted into the cock connection portion 13 of the elbow 1, and the protrusion 24 is inserted into the L-shaped engagement groove 14 so that the cock 2 is slightly twisted. Engage all the way and attach the cock 2. Thereafter, as shown in FIG. 4, the plastic bottle P is held upside down, the cylindrical shaft portion 4 of the elbow 1 is inserted into the vertical hole 8 of the stand 3, and the contact portion 16 of the elbow 1 is inserted into the seat portion 21 of the stand 3. The plastic bottle P is stably held on the stand 3. When the plastic bottle P is set in the stand 3 in this way, as shown in FIG. 1, the raised portion 18 of the valve 7 is pushed up by the valve opening portion 9 and the air intake 6 is opened.

As described above, since the present liquid dispensing apparatus is provided by inserting the air introduction pipe 5 into the cylindrical shaft portion 4 of the elbow 1, the air introduction pipe 5 needs to be inserted into the elbow 1 when the cock 2 is attached. In addition, a valve 7 having an air intake 6 to the air introduction pipe 5 is provided at the lower end of the cylindrical shaft portion 4, and the stand 3 has a valve at the bottom of the vertical hole 8 into which the cylindrical shaft portion 4 is inserted from above. When the opening portion 9 is provided and the plastic bottle P is set on the stand 3, the valve 7 comes into contact with the valve opening portion 9 to open the air intake 6, and when the plastic bottle P is removed from the stand 3, the valve 7 moves from the valve opening portion 9. Since the air intake 6 closes away, it is not necessary to open and close the air intake 6 by hand, so that the plastic bottle P can be set easily.
By inserting the cylindrical shaft portion 4 of the elbow 1 into the vertical hole 8 of the stand 3, the plastic bottle P can be stably held in a standing state on the stand 3. By lengthening the air introduction pipe 5 so as to reach the bottom of the plastic bottle P, it is not necessary to provide a check valve at the tip of the air introduction pipe 5.

FIG. 6 shows another embodiment of the liquid dispensing apparatus. In the present embodiment, the valve 7 at the lower end of the cylindrical shaft portion 4 of the elbow 1 is removed, and the air intake 6 at the lower end of the air introduction pipe 5 is always open. A check valve 27 for preventing the liquid miso W from flowing into the air introduction pipe 5 is attached to the tip of the air introduction pipe 5. As shown in FIG. 7, the check valve 27 includes a base portion 30 having a connection portion 28 into which the air introduction pipe 5 is inserted on the lower side and a valve body seating portion 29 attached to the upper end portion, and the base portion 30 from above. It comprises a valve case 32 that covers and forms the valve body accommodating space 31 and a valve body 33 that is detachably accommodated in the valve body accommodating space 31. The base 30, the valve case 32, and the valve body 33 are made of resin, and the valve body seating portion 29 is made of silicon rubber. An air outlet 34 is formed on the upper surface of the valve case 32, and a rib 35 is provided on the back side of the air outlet 34. When the valve body 33 is lifted, the air outlet 34 is not blocked by the valve body 33. I am doing so. The valve body 33 is formed in a bullet shape with a hemispherical lower part and a flat upper surface, and moves about 1 mm in a direction approaching and separating from the valve body seating part 29 in the valve body accommodating space 31 (vertical direction in FIG. 7) It is possible.
While the cock 2 is closed, the valve element 33 is pressed against the valve element seat 29 by the pressure of the liquid miso W in the plastic bottle P as shown in FIG. Is prevented from flowing into the air introduction pipe 5. When the cock 2 is opened and the liquid miso W is poured out from the beverage pouring outlet 25, air is sucked into the air introduction pipe 13 from the air inlet 6, so that the valve element 33 is shown in FIG. The air floats up and leaves the valve seat 29, so that air 36 is discharged from the air outlet 34 into the liquid miso W. As described above, since air is sent into the plastic bottle P through the air intake 6 and the air introduction pipe 5 during liquid extraction, the liquid and air in the plastic bottle P are replaced. The liquid miso W can be poured smoothly without pulsating. Since the check valve 27 is attached to the tip of the air introduction pipe 5, the air introduction pipe 5 does not have to reach the bottom of the plastic bottle P. Therefore, the air introduction pipe 5 can be made short and large. The air introduction pipe 5 can be shared by different plastic bottles P.
The check valve 27 is not limited to the one having the above structure, and may be a beak shape integrally formed of silicon rubber or the like as described in FIG. After the valve 7 is attached to the lower end portion of the cylindrical shaft portion 4 of the elbow 1, the check valve 27 can also be attached to the distal end portion of the air introduction pipe 5.

  The present invention is not limited to the embodiments described above. The type of liquid to be dispensed is arbitrary, and is not limited to liquid miso, but may be soft drinks, alcohol such as tea and water, whiskey and shochu, and seasonings other than liquid miso such as soy sauce and mayonnaise. The bottle is not necessarily a plastic bottle. The cock 2 may have any structure.

DESCRIPTION OF SYMBOLS 1 Elbow 2 Cock 3 Stand 4 Cylindrical shaft part 5 Air introduction pipe 6 Air intake 7 Valve 8 Vertical hole 9 Valve opening part 10 Operation lever 11 Pipe line 12 Bottle connection part 13 Cock connection part 14 Engagement groove 15 Insertion part 16 Contact part 17 Through hole 18 Raised part 19 Slit 20 Recessed part 21 Seat part 22 Connection pipe 24 Projection 25 Liquid outlet 26 Valve mounting member 27 Check valve (valve)
28 Connecting portion 29 Valve seating portion 30 Base portion 31 Valve body housing space 32 Valve case 33 Valve body 34 Air outlet 35 Rib 36 Air W Liquid miso (liquid)
E Container P Plastic bottle (bottle)
Q Bottle mouth C Center axis

Claims (5)

  A bottle connecting part connected to the mouth of a plastic bottle, a cock connecting part to which a cock is connected, a cylindrical shaft part provided on an extension line of the central axis of the bottle connecting part, and a cylindrical shaft part An elbow comprising an air introduction tube provided by insertion, and a valve provided at at least one of a lower end portion of the cylindrical shaft portion and a tip portion of the air introduction tube.   The valve is provided at a lower end portion of the cylindrical shaft portion, and the air intake port is opened when the plastic bottle is set on the stand, and the air intake port is closed when the plastic bottle is removed from the stand. The elbow according to Item 1.   3. The elbow according to claim 2, wherein the valve is made of a rubber material, and a slit is provided in the central portion to form an air intake.   The elbow includes an elbow connected to the mouth portion of the plastic bottle, a cock connected to the elbow, and a stand. The elbow has a bottle connecting portion connected to the bottle mouth portion, a cock connecting portion to which the cock is connected, and a bottle connection. At least one of a cylindrical shaft portion provided to hang down on an extension line of the central axis of the portion, an air introduction tube provided by being inserted into the cylindrical shaft portion, a lower end portion of the cylindrical shaft portion, and a tip portion of the air introduction tube A liquid pouring device comprising: a valve provided on either side; and the stand has a vertical hole into which the cylindrical shaft portion of the elbow is inserted from above.   The stand has a valve opening provided at the bottom of the vertical hole, and when the cylindrical shaft is fitted into the vertical hole, the valve contacts the valve opening to open the air intake, and the cylindrical shaft from the vertical hole. 5. The liquid dispensing apparatus according to claim 4, wherein the valve is separated from the valve opening portion and the air intake port is closed when the valve is detached.

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