JP6495802B2 - Water server - Google Patents

Description

  The present invention relates to a water server.

  Patent Document 1 discloses a conventional water server. This water server fills a chamber provided in the apparatus with water and carbon dioxide gas at a predetermined ratio. And carbonated water can be manufactured by rotating the stirrer with a blade provided in the chamber and stirring water and carbon dioxide gas. For this reason, this water server can produce carbonated water of a desired density | concentration by adjusting the rotation speed and time of a stirrer with a blade.

  Patent Document 2 discloses a conventional carbon dioxide mixing device. This carbon dioxide mixing device has a fitting tube portion and a cap. The fitting cylinder part accommodates a cylinder storing carbon dioxide gas. The cylinder can produce carbonated water once. The cylinder is fixed to the fitting cylinder by a stopper. The cap is provided with a through-hole penetrating vertically. The cap is provided with a through hole that communicates the inside and outside of the bottle. The cap is provided with a needle with a hole above the through hole. The cap communicates with the through hole and is provided with an injection tube. The cap is provided with a one-way valve communicating with a portion where the through hole and the injection pipe are connected. The cap can be sealed by attaching it to a bottle of cold water.

  In this carbon dioxide gas mixing device, the fitting cylinder portion in which the cylinder is accommodated is screwed into the cap, so that the needle with a hole provided in the cap can open the cylinder. Thus, the carbon dioxide mixing device can cause the carbon dioxide discharged from the cylinder to flow into the bottle. In this carbon dioxide mixing device, the carbon dioxide flowing into the bottle does not leak out from the inside of the bottle by the one-way valve. For this reason, this carbon dioxide mixing device can maintain the quality of the produced carbonated water for a long time.

JP-T-2004-528969 Utility model registration No. 3177083

  However, since the water server of Patent Document 1 has a chamber in the apparatus main body, the structure of the apparatus is complicated. Moreover, this water server requires time to stir water and carbon dioxide gas in a chamber in the apparatus main body before supplying carbonated water to the user. For this reason, it takes time for this water server to provide carbonated water to the user.

  Carbon dioxide has a property of being more soluble in water as the temperature of the water is lower. For this reason, the carbon dioxide mixing device of Patent Document 2 cannot produce carbonated water well unless it obtains cooling water. In addition, this carbon dioxide gas mixing device requires time and labor to store a new cylinder in the fitting cylinder every time carbonated water is produced.

  This invention is made | formed in view of the said conventional situation, Comprising: It is set as the problem which should be solved to provide the water server which can manufacture carbonated water easily.

The water server of the present invention is
A drinking water cooling section for cooling water;
A water discharger having a drinking water spout for discharging cooling water cooled by this drinking water cooling unit and supplying it to the user,
A carbon dioxide introduction section having a carbon dioxide introduction port for introducing carbon dioxide,
A carbon dioxide gas injection unit having a carbon dioxide injection port for injecting carbon dioxide gas introduced from the carbon dioxide gas introduction unit and supplying it to the user,
Equipped with a,
The water spouting portion and the carbon dioxide gas injection unit, that is arranged to supply separately independently cooling water and the carbon dioxide gas to a user.

  This water server can separately supply cooling water and carbon dioxide to the user. Thus, the user can produce a desired amount of carbonated water by mixing a desired amount of carbon dioxide gas with a desired amount of cooling water. For this reason, since this water server is not provided with a structure for producing carbonated water in the apparatus, the structure in the apparatus can be simplified. In addition, since this water server does not require a space for providing a structure for producing carbonated water in the apparatus, the outer shape of the apparatus can be further reduced. Moreover, since this water server can produce carbonated water of a user's desired quantity, it can suppress using a cooling water and carbon dioxide gas wastefully.

  Therefore, the structure of the water server of the present invention can be simplified.

It is the schematic which shows the structure of the water server of Example 1. FIG. It is a principal part enlarged view which shows the cartridge of the water server of Example 1, and a drinking water mounting part, (A) shows the state before mounting a cartridge in a drinking water mounting part, (B) is a cartridge. The state which mounted in the drinking water mounting part is shown. It is a principal part enlarged view which shows the carbon dioxide introduction part of the water server of Example 1, and the carbon dioxide discharge part of a cylinder. It is a principal part enlarged view which shows the carbon dioxide injection part of the water server of Example 1, a carbon dioxide inflow part, and the cooling water inflow part of a storage part. It is a principal part enlarged view which shows the state which the carbonic acid gas injection port of the carbonic acid gas injection part on-off valve of the water server of Example 1 and the carbonic acid gas inflow port of the non-return valve of a carbonic acid gas inflow part are connecting. It is a front view which shows the external appearance of the water server of Example 1. FIG. It is a side view which shows the external appearance of the water server of Example 1. FIG. It is XX sectional drawing of the arrow of FIG. FIG. 7 is a cross-sectional view taken along line YY in FIG. 6. It is an operation | work procedure which manufactures carbonated water using the water server of Example 1, Comprising: The state which poured the cooling water discharged from the drinking water spout into the storage part is shown. It is the operation | work procedure which manufactures carbonated water using the water server of Example 1, Comprising: The state which screwed and attached the cover part of the carbon dioxide gas inflow part to the storage part into which cooling water was made to flow is shown. The operation procedure for producing carbonated water using the water server of Example 1, wherein the check valve of the container into which the cooling water is introduced and the carbon dioxide inflow part is attached is inserted into the check valve guide part of the carbon dioxide injection part. The carbon dioxide gas inlet of the check valve communicates with the carbon dioxide gas injection port of the carbon dioxide gas injection part opening / closing valve. It is the operation | work procedure which manufactures carbonated water using the water server of Example 1, Comprising: The state which flows in carbon dioxide through the carbon dioxide inflow part in the container into which cooling water was flowed is shown. It is the operation | work procedure which manufactures carbonated water using the water server of Example 1, Comprising: The state which removed the container into which cooling water and carbon dioxide gas were flowed in from the supply part is shown. It is the operation | work procedure which manufactures carbonated water using the water server of Example 1, Comprising: The state which shaken the container into which cooling water and carbon dioxide gas were flowed in and stirred the cooling water and carbon dioxide gas in a container is shown. It is a principal part enlarged view which shows the carbon dioxide introduction part of the other Example and the carbon dioxide discharge part of a cylinder.

  A preferred embodiment of the present invention will be described.

  In the water server of the present invention, the drinking water spouting unit and the carbon dioxide gas injection unit may be provided side by side. In this case, the water server can inject and mix the carbon dioxide gas into the cold water taken out from the drinking water spouting section immediately from the carbon dioxide injection section. As a result, this water server can produce carbonated water immediately before the cooling water warms up, so it is possible to mix more carbon dioxide gas into the cooling water and produce higher concentration carbonated water. Can do.

  The water server according to the present invention includes a first guide section that stores a cooling water, guides a container having a carbon dioxide inlet into which carbon dioxide is introduced, and communicates the carbon dioxide inlet with the carbon dioxide injection port. obtain. In this case, the water server can reliably guide and communicate the carbon dioxide inlet provided in the container to the carbon dioxide jet. For this reason, this water server can make the carbon dioxide inflow part and the carbon dioxide injection part communicate easily. Moreover, this water server can suppress that a carbon dioxide inflow part unintentionally collides with a carbon dioxide injection part and the circumference | surroundings of a carbon dioxide injection part, and is damaged or deform | transformed.

  The water server of the present invention includes a first on-off valve that opens and closes a carbon dioxide gas flow path that communicates the carbon dioxide introduction section and the carbon dioxide injection section, and the carbon dioxide injection section. And a second on-off valve that opens when the carbon dioxide gas communication port communicates. In this case, in this water server, the second on-off valve does not open unless the carbon dioxide inflow port of the container communicates with the carbon dioxide injection port. Therefore, in this water server, even if the first on-off valve is inadvertently opened in a state where the carbon dioxide inlet of the container is not in communication with the carbon dioxide jet, the carbon dioxide jets from the carbon dioxide jet. That can be suppressed.

  The carbon dioxide gas introduction part of the water server of the present invention guides a cylinder having a carbon dioxide gas discharge part having a carbon dioxide gas discharge port for storing carbon dioxide gas and flowing out the carbon dioxide gas, and the carbon dioxide gas discharge port is connected to the carbon dioxide gas discharge port. It may have a 2nd guide part connected to a gas inlet. In this case, since this water server can guide the cylinder with the second guide portion provided in the carbon dioxide gas introduction portion, the carbon dioxide gas discharge port can be reliably guided to and communicated with the carbon dioxide gas introduction port. For this reason, this water server can prevent poor connection between the carbon dioxide discharge port and the carbon dioxide introduction port of the cylinder, and can prevent carbon dioxide from leaking out due to poor connection.

  The carbon dioxide gas inlet of the water server of the present invention can rotate between an opening direction when the cylinder is mounted and an opening direction when the cylinder is stored. In this case, when the water server is installed with a cylinder and the carbon dioxide discharge port communicates with the carbon dioxide introduction port, the carbon dioxide introduction port can be directed toward the operator, so that the cylinder can be easily installed. it can. Further, after the water server has been installed, the carbon dioxide gas inlet port rotates together with the cylinder so that the cylinder can be stored in the apparatus. Thus, since this water server can easily store the cylinder in the apparatus, the depth dimension can be reduced.

  Next, a first embodiment in which the water server of the present invention is embodied will be described with reference to the drawings.

<Example 1>
As shown in FIG. 1, the water server according to the first embodiment includes a drinking water supply function unit 1 that supplies drinking water, a carbon dioxide supply function unit 2 that supplies carbon dioxide, a supply unit 13, and a container 40. .

  The drinking water supply function unit 1 includes a drinking water mounting unit 10, a cartridge 10F, a drinking water mounting unit water conduit 20, a drinking water cooling unit 11, a drinking water cooling unit water conduit 21, a drinking water heating unit 12, and a drinking water discharge. It has a partial water conduit 22 and a drinking water discharger 23.

  The drinking water mounting part 10 is provided in the upper end part of the water server main body 50 (refer FIG. 1, 2 (A), (B), 6, 7). The drinking water placing part 10 has a drinking water placing part bottom wall 10A, a standing wall part 10B, a cover member storage part 10K, a cover member 10D, and a placing part spring 10E. 10 A of drinking water mounting part bottom walls have the width in the front-back direction, and have comprised the flat form extended in the left-right direction. The standing wall portion 10B extends upward from the left and right end portions on the front side, the left and right sides, and the rear side of the bottom wall 10A of the drinking water placement portion. In the standing wall portion 10B, the dimension between the two opposite sides of the left and right end portions on the front side increases as it goes upward. The cover member storage portion 10K is formed to be recessed downward from the upper surface of the drinking water placing portion bottom wall 10A. The cover member storage portion 10K has a cylindrical shape, and a cover member storage portion bottom wall 10L extending toward the inside of the cylindrical shape is provided at the lower end. The cover member storage portion bottom wall 10L is penetrated by a drinking water mounting portion water conduit 20 described later.

  The cover member 10D has a cylindrical shape and extends in the vertical direction. The cover member 10 </ b> D is provided with a protective wall portion 10 </ b> M extending toward the inner side of the cylindrical shape at the upper end of the cylindrical shape. The protective wall portion 10M penetrates the center portion in the vertical direction and is provided with a needle insertion hole 10N. The cover member 10D has a cylindrical lower end opened. The cover member 10D has a cylindrical lower end portion inserted into a cover member storage portion 10K provided on the drinking water placing portion bottom wall 10A.

  The placement portion spring 10E is provided in a cover member storage portion 10K provided on the drinking water placement portion bottom wall 10A. The placement portion spring 10E is a compression coil spring. The mounting portion spring 10E is arranged in the vertical direction, and the lower end is connected to the upper surface of the cover member storage portion bottom wall 10L of the cover member storage portion 10K. Further, the upper end of the mounting portion spring 10E is connected to the lower surface of the protective wall portion 10M of the cover member 10D. Thereby, the cover member 10D is provided with the elastic force of the mounting portion spring 10E in the upward direction. That is, the cover member 10 </ b> D can cover the periphery of the needle portion 20 </ b> A of the drinking water mounting portion water conduit 20 in a state where a cartridge 10 </ b> F described later is not mounted on the drinking water mounting portion 10. For this reason, cover member 10D can suppress that a user etc. touches needle part 20A carelessly. Further, when a force is applied downward from the upper side, the cover member 10D is stored in the protective wall portion 10M and the cover member storage portion 10K, and the upper surface of the protective wall portion 10M and the upper surface of the drinking water placing portion bottom wall 10A are separated. It becomes flush (see FIG. 2B). Further, when the cover member 10D stops applying a downward force from the upper side, the cover member 10D moves upward by the elastic force of the mounting portion spring 10E, and the cylindrical lower end portion is inserted into the cover member storage portion 10K. Return to.

  The drinking water placing unit 10 configured in this way can place a cartridge 10F containing a bag 53, which will be described later, filled with drinking water, and introduce drinking water into the water server. Specifically, when the drinking water placing part 10 places the cartridge 10F containing the bag 53 filled with drinking water, the protective wall part 10M of the cover member 10D comes into contact with the cartridge bottom wall 10G of the cartridge 10F and is pushed down. . At this time, in the protective wall portion 10M, the needle insertion hole 10N passes through the needle portion 20A of the drinking water placing portion water conduit 20. Moreover, the recessed part 10P of the cartridge 10F fits the standing water part 10B in the drinking water mounting part 10. FIG. In addition, when the lower surface of the cartridge bottom wall 10G of the cartridge 10F comes into contact with the upper surface of the drinking water mounting portion bottom wall 10A, the drinking water mounting portion 10 has an upper end of the needle portion 20A of the drinking water mounting portion water guide channel 20 at the cartridge. The through-hole 10Q provided in the bottom wall 10G is inserted, and the bag 53 is pierced while protruding upward from the cartridge bottom wall 10G.

  The cartridge 10F has a cartridge bottom wall 10G, a peripheral wall 10H, and an upper lid 10J. The cartridge bottom wall 10G has a flat plate shape having a width in the front-rear direction and extending in the left-right direction. The peripheral wall 10H rises continuously on the outer periphery of the cartridge bottom wall 10G. The peripheral wall 10H is formed with a left and right end portions on the front side of the lower end portion of the outer peripheral surface, both left and right sides, and a hollow portion 10P in which the rear side is recessed toward the inside. The indented portion 10P is fitted to the standing wall portion 10B of the drinking water placing portion 10. The cartridge bottom wall 10G penetrates in the vertical direction and is provided with a through hole 10Q. The through hole 10Q communicates coaxially with the needle insertion hole 10N of the cover member 10D when the cartridge 10F is placed on the drinking water placing portion 10. The front lid 10J has a width in the front-rear direction and expands in the left-right direction, and a rear side hangs downward from the rear edge of the front side in the rear direction (see FIG. 7). The lower surface of the upper lid 10J abuts on the upper end of the peripheral wall 10H and is placed on the upper end of the peripheral wall 10H.

  The cartridge 10 </ b> F configured in this way can store a bag 53 filled with drinking water. Specifically, since the bag 53 filled with drinking water is formed of a synthetic resin such as polypropylene, the shape is not fixed and it is difficult to handle. By storing the bag 53 filled with drinking water, the cartridge 10 </ b> F can easily carry the bag 53 filled with drinking water and place it on the drinking water placement unit 10. Further, when the needle portion 20A of the drinking water mounting portion water guide channel 20 pierces the bag 53, the cartridge 10F can reliably match the relative position of the bag 53 and the needle portion 20A, so that the drinking water leaks from the bag 53. Can be suppressed.

  The drinking water mounting portion water guide channel 20 has a tubular shape and extends in the vertical direction. The drinking water placing part water guide path 20 communicates with the closed upper end of the drinking water cooling part 11 described later at the tubular lower end. The drinking water mounting portion water conduit 20 has a needle portion 20A and a drinking water introduction electromagnetic valve 20C. The needle portion 20A is formed in a thin conical shape in the upward direction. The needle portion 20A is hollow inside. The needle portion 20A is formed with a drinking water introduction hole 20B provided through the conical outer peripheral surface. The needle portion 20 </ b> A has a conical lower end communicating with the tubular upper end of the drinking water mounting portion water conduit 20. The drinking water mounting part water guide channel 20 penetrates the cover member storage part bottom wall 10L of the drinking water mounting part 10, and the needle part 20A is provided protruding above the drinking water mounting part bottom wall 10A. The upper end of the needle portion 20A is located below the protective wall portion 10M of the cover member 10D.

  20 C of drinking water introduction | transduction solenoid valves are provided in communication between the cover member storage part bottom wall 10L of the drinking water mounting part 10 of the drinking water mounting part water conduit 20, and the closed upper end of the drinking water cooling part 11. ing. The drinking water introduction electromagnetic valve 20 </ b> C is provided with a water inlet port on the side of the cover member storage portion bottom wall 10 </ b> L of the drinking water placement portion 10. The drinking water introduction solenoid valve 20C is electrically connected to a control unit (not shown). The control unit can control the flow of drinking water or carbon dioxide introduced into the apparatus. In addition, the control unit can store a predetermined value used when comparing with a value corresponding to the state in the apparatus.

  Moreover, the upper side of the drinking water introduction | transduction electromagnetic valve 20C is connected with the drinking water mounting part water conduit 20 with respect to the closed upper end of the drinking water cooling part 11 via a support member (not shown). Thereby, the drinking water mounting part water conduit 20 does not shift | deviate the upper side of the drinking water introduction | transduction electromagnetic valve 20C with respect to the upper end by which the drinking water cooling part 11 was closed. The support member is made of synthetic resin. For this reason, this water server is filled with hot water circulated in the apparatus, and when sterilizing the apparatus, the heat of the hot water filled in the drinking water cooling part 11 is transmitted to the needle part 20A via the support member. Can be difficult. As a result, in this water server, the bag 53 pierced by the needle portion 20A is deformed or broken by the heat of hot water, and the drinking water filled in the bag 53 leaks from between the bag 53 and the needle portion 20A. That can be suppressed.

  The drinking water mounting part conduit 20 thus configured can introduce drinking water from the bag 53 filled with drinking water into the drinking water cooling part 11. Specifically, the cartridge 10 </ b> F containing the bag 53 filled with drinking water is placed in the drinking water placement unit 10. Then, the needle portion 20A passes through the through hole 10Q provided in the cartridge bottom wall 10G, and pierces the bag 53 while protruding upward from the cartridge bottom wall 10G. And the drinking water reaches the water inlet port of the drinking water introduction electromagnetic valve 20C through the drinking water introduction hole 20B provided in the needle portion 20A.

  The drinking water introduction solenoid valve 20C has a predetermined value (predetermined value is controlled in advance) corresponding to the level of drinking water stored in the drinking water cooling unit 11 detected by a float switch 11D of the drinking water cooling unit 11 described later. The valve is automatically closed when it is larger (stored in the section), and is automatically opened when it is smaller than a predetermined value. Specifically, when the control unit determines that the float switch 11D has been switched from OFF to ON (when the water level in the drinking water cooling unit 11 has dropped), a lead time is provided for 5 seconds to open the drinking water introduction solenoid valve 20C. The control which controls is performed, and drinking water is introduce | transduced into the drinking water cooling part 11. FIG. Further, when the control unit determines that the float switch 11D has been switched from ON to OFF (when the water level in the drinking water cooling unit 11 rises), a lead time is provided for 0.8 seconds, and the drinking water introduction electromagnetic valve 20C is set. Execute the control to close the valve. Thereby, the drinking water introduction electromagnetic valve 20 </ b> C can introduce an appropriate amount of drinking water from the drinking water placing unit 10 to the drinking water cooling unit 11.

  The drinking water cooling unit 11 is provided below the drinking water placing unit 10. The drinking water cooling unit 11 has a cylindrical shape and extends in the vertical direction, and the upper end and the lower end are closed. The drinking water cooling part 11 is provided with a partition part 11A inside. The partition part 11A partitions the space formed inside the drinking water cooling part 11 into an upper side and a lower side. The partition portion 11A has a disk shape. The partition portion 11 </ b> A has a disk-shaped central axis disposed on the cylindrical central axis of the drinking water cooling unit 11. The partition portion 11 </ b> A has a disk-shaped outer diameter slightly smaller than the cylindrical inner diameter of the drinking water cooling unit 11. That is, the drinking water cooling unit 11 has a gap formed between the outer peripheral surface of the partition unit 11A and the cylindrical inner peripheral surface of the drinking water cooling unit 11 in the upper and lower spaces partitioned by the partition unit 11A. Are in communication with each other.

  11 A of partition parts penetrate in the up-down direction in the flat center part, and the through-hole 11B is provided. This through hole 11B communicates with the upper end of a drinking water cooling section conduit 21 described later. The drinking water cooling unit 11 has a cooling member 11C attached to the lower outer peripheral surface. Further, the drinking water cooling unit 11 communicates with a tubular lower end of a cooling water flow path 22A described later at the closed lower end.

  The drinking water cooling unit 11 configured in this way can cool the drinking water introduced into the drinking water cooling unit 11 into cooling water. Specifically, in the drinking water cooling unit 11, the drinking water introduced from the drinking water mounting unit conduit 20 is formed between the outer peripheral surface of the partition portion 11 </ b> A and the cylindrical inner peripheral surface of the drinking water cooling unit 11. It introduce | transduces into the space below the drinking water cooling part 11 partitioned off by 11 A of partition parts through the clearance gap. In the drinking water cooling unit 11, drinking water introduced into the lower space enters the cooling water side electromagnetic valve 22F of the drinking water discharge channel 22D via the cooling water channel 22A side of the drinking water discharge unit conduit 22 described later. It is introduced to the port side and the water inlet port side of the circuit solenoid valve 22E of the hot water circuit 22C. Moreover, drinking water is introduced into the drinking water heating part 12 mentioned later through the through-hole 11B of the partition part 11A, and the drinking water cooling part conduit 21.

  Moreover, the drinking water cooling part 11 can cool the drinking water introduced into the space below the drinking water cooling part 11 partitioned by the partition part 11A by the cooling member 11C to make cooling water. 11 C of cooling members are arrange | positioned under the partition part 11A. That is, the drinking water cooling unit 11 can cool the drinking water. When water is cooled and the temperature drops, the specific gravity increases and the water tends to sink downward. For this reason, the drinking water cooling part 11 can cool drinking water efficiently by providing the cooling member 11C below the partition part 11A. Moreover, the drinking water cooling part 11 can prevent mixing with cooling water and the drinking water which is not cooled by the partition part 11A. That is, 11 A of partition parts can suppress that the temperature of cooling water changes by mixing cooling water and uncooled drinking water. Thus, the drinking water cooling unit 11 can store the drinking water in the upper space of the partition portion 11A at room temperature and can store the cooling water in the lower space. For this reason, this water server can supply the user with the stably cooled drinking water.

  The drinking water cooling unit 11 is provided with a float switch 11D at the closed upper end. The float switch 11D can detect the level of water introduced into the drinking water cooling unit 11 and transmit a value corresponding to the level of drinking water stored in the drinking water cooling unit 11 to the control unit.

  The drinking water cooling section water conduit 21 has a tubular shape and extends in the vertical direction. The drinking water cooling section conduit 21 has a tubular upper end extending through the closed lower end of the drinking water cooling section 11 and extending into the drinking water cooling section 11. The upper end of the drinking water cooling section water conduit 21 communicates with a through hole 11 </ b> B provided in the partition section 11 </ b> A of the drinking water cooling section 11. The drinking water cooling section conduit 21 has a tubular lower end extending through the closed upper end of the drinking water heating section 12 and extending into the drinking water heating section 12. The drinking water cooling unit conduit 21 is disposed with a slight gap between the lower end and the upper surface of the closed lower end of the drinking water heating unit 12. Further, the drinking water cooling section water conduit 21 is slightly inclined near the upper surface of the closed lower end of the drinking water heating section 12.

  Moreover, the drinking water cooling part water conduit 21 penetrates directly under the closed upper end of the drinking water heating part 12, and the gas inflow hole 21B is provided. When the drinking water is introduced from the drinking water cooling unit 11 to the drinking water heating unit 12, the gas inflow hole 21 </ b> B can cause the air remaining in the drinking water heating unit 12 to flow into the drinking water cooling unit conduit 21. In addition, when the drinking water heating unit 12 heats the drinking water, the gas inflow hole 21B does not hinder the flow of drinking water introduced from the drinking water cooling unit 11, and the water vapor generated in the drinking water heating unit 12 Gas can be allowed to flow into the drinking water cooling section water conduit 21.

  The drinking water cooling section conduit 21 is provided with a pump 21 </ b> A communicating between the lower end of the drinking water cooling section 11 and the upper end of the drinking water heating section 12. The pump 21A is electrically connected to the control unit. The pump 21A does not hinder the flow of drinking water in the drinking water cooling section conduit 21 in the non-driven state. Moreover, the upper side of the pump 21 </ b> A is inclined in the drinking water cooling section water conduit 21. Thereby, this water server can suppress the load concerning pump 21A, when driving pump 21A and sending hot water from drinking water heating part 12 to drinking water cooling part 11. For this reason, this water server can further reduce the size of the pump 21A.

  If the upper side of the pump 21A of the drinking water cooling section conduit 21 is not inclined, gas such as water vapor generated in the drinking water heating section 12 or air remaining in the drinking water heating section 12 is generated in the drinking water cooling section. Even if an attempt is made to flow toward the drinking water cooling unit 11 through the water conduit 21, the drinking water introduced from the drinking water cooling unit 11 may be clogged. However, this water server inclines the upper side of the pump 21 </ b> A of the drinking water cooling unit conduit 21 to incline the gas such as water vapor generated in the drinking water heating unit 12 and the air remaining in the drinking water heating unit 12. The collected drinking water cooling unit can be gathered on the upper side of the water conduit 21 and can flow toward the drinking water cooling unit 11. Further, the drinking water introduced from the drinking water cooling unit 11 can be gathered under the inclined drinking water cooling unit conduit 21 and flow toward the drinking water heating unit 12. In other words, the water server tilts the upper side of the pump 21 </ b> A of the drinking water cooling section water conduit 21, so that gas such as water vapor generated in the drinking water heating section 12, air remaining in the drinking water heating section 12, and Each of the drinking water introduced from the drinking water cooling part 11 can be poured favorably.

  The drinking water cooling section conduit 21 thus configured can introduce the drinking water introduced into the drinking water cooling section 11 into the drinking water heating section 12. Specifically, drinking water is introduced into the drinking water cooling unit conduit 21 through the through hole of the partition portion 11 </ b> A of the drinking water cooling unit 11. Then, the drinking water passes through the pump 21 </ b> A and is introduced into the lower end portion in the drinking water heating unit 12.

  Moreover, the drinking water cooling part water conduit 21 drives the pump 21A and heats the hot water heated by the drinking water heating part 12 from the drinking water heating part 12 to the drinking water cooling part 11, and a drinking water spout part water conduit described later. The hot water can be circulated and filled in the apparatus for a predetermined time. Thereby, this water server can perform sterilization in an apparatus with hot water. Thus, the water server can easily sterilize the apparatus without disassembling the apparatus.

  The drinking water heating unit 12 has a cylindrical shape and extends in the vertical direction, and the upper and lower ends of the cylindrical shape are closed. The drinking water heating unit 12 is provided below the drinking water cooling unit 11. The drinking water heating unit 12 is provided with a heating member 12A at the lower part inside. A sheathed heater is used as the heating member 12A. Moreover, the drinking water heating part 12 has the tubular other end of the hot water flow path 22B of the drinking water spout part water conveyance path 22 mentioned later connected in the closed upper end.

  The drinking water heating unit 12 configured in this manner can heat the introduced drinking water by the heating member 12A to make hot water. In addition, the drinking water heating unit 12 supplies the drinking water heated by the heating member 12A via the hot water flow path 22B side of the drinking water discharge section conduit 22 to the water inlet port of the hot water side electromagnetic valve 22G of the drinking water discharge path 22D. And the non-water inlet port side of the circulation path solenoid valve 22E of the hot water circulation path 22C.

  The drinking water spouting part conduit 22 has a cooling water channel 22A, a hot water channel 22B, a hot water circulation channel 22C, and a drinking water discharging channel 22D. The cooling water passage 22A has a tubular shape and extends in one direction. One end of the cooling water flow path 22 </ b> A communicates with the closed lower end of the drinking water cooling unit 11. The hot water flow path 22B has a tubular shape and extends in one direction. The hot water flow path 22 </ b> B communicates with the closed upper end of the drinking water heating unit 12 at the other end of the tubular shape.

  The hot water circulation path 22C has a tubular shape and extends in one direction. The hot water circulation path 22C has a tubular end connected to the other end of the cooling water flow path 22A and the other end connected to one end of the hot water flow path 22B. The hot water circulation path 22C is provided with a circulation path solenoid valve 22E in communication with a tubular intermediate portion. The circulation path electromagnetic valve 22E can be opened when the pump 21A of the drinking water cooling section conduit 21 is driven, and can be closed when the pump 21A stops driving. The circulation path electromagnetic valve 22E is electrically connected to the control unit. The circulation path solenoid valve 22E is provided with a water inlet port on the side of the cooling water flow path 22A of the hot water circulation path 22C.

  The drinking water discharge channel 22D has a tubular shape and extends in one direction. The drinking water discharge channel 22D has a tubular end communicating with the other end of the cooling water channel 22A and the other end communicating with one end of the hot water channel 22B. The drinking water discharge passage 22D is provided with a cooling water side electromagnetic valve 22F and a hot water side electromagnetic valve 22G communicating with each other at a tubular intermediate portion. The drinking water discharge channel 22D is formed of a synthetic resin between the cooling water side solenoid valve 22F and the hot water side solenoid valve 22G. The cooling water side solenoid valve 22F and the hot water side solenoid valve 22G are each electrically connected to the control unit. The cooling water side solenoid valve 22F and the hot water side solenoid valve 22G can be opened and closed by operating the operation unit 14 electrically connected to the control unit when used by the user. .

  Here, the configuration of the operation unit 14 will be described. The operation unit 14 is provided adjacent to the front side of the water server main body 50 and above the supply unit 13 described later (see FIGS. 6 and 7). The operation unit 14 includes a cooling water supply button 14A, a hot water supply button 14B, a carbon dioxide supply button 14C, and a lock release button 14D (see FIG. 9). While the cooling water supply button 14A is being pressed, the cooling water side electromagnetic valve 22F can be opened. While the hot water supply button 14B is being pressed, the hot water side electromagnetic valve 22G can be opened. While the carbon dioxide supply button 14C is being pressed, a carbon dioxide electromagnetic valve 32C described later can be opened. When the lock release button 14D is pressed, the operations of the cooling water supply button 14A, the hot water supply button 14B, and the carbon dioxide supply button 14C can be disabled or enabled. In other words, the lock release button 14D can prevent the discharge of cooling water or hot water or the injection of carbon dioxide gas due to an incorrect button operation (child mischief or careless contact with the button). Further, the lock release button 14D can be made not to function with respect to the operation of the cooling water supply button 14A. Moreover, when the temperature of the hot water stored in the drinking water heating unit 12 is lower than a predetermined temperature, the hot water supply button 14B is not pressed without pressing the lock release button 14D and the operation of the hot water supply button 14B is not enabled. Press for a predetermined time. Thereby, the hot water stored in the drinking water heating part 12 can also be heated again.

  The cooling water side solenoid valve 22F and the hot water side solenoid valve 22G are arranged adjacent to each other in series with respect to the drinking water discharge channel 22D. The cooling water side solenoid valve 22F is provided with a water inlet port on the side of the cooling water passage 22A of the drinking water discharge passage 22D. Moreover, the hot water side solenoid valve 22G is provided with a water inlet port on the hot water flow path 22B side of the drinking water discharge channel 22D.

  The drinking water spouting portion conduit 22 thus configured can send cooling water and hot water to the drinking water spouting portion 23 described later via the drinking water discharging passage 22D described later. Specifically, the drinking water spouting section water conduit 22 can open the cooling water side electromagnetic valve 22F while the user is pressing the cooling water supply button 14A of the operation section 14. Thereby, the cooling water introduced into the water inlet port side of the cooling water side electromagnetic valve 22F can be introduced into the drinking water discharger 23 via the cooling water side electromagnetic valve 22F. Then, after the desired amount of cooling water is taken out, if the pressing of the cooling water supply button 14A is stopped, the cooling water side electromagnetic valve 22F can be closed. Thereby, the introduction of the cooling water into the drinking water discharger 23 can be stopped.

  In addition, the drinking water spouting section conduit 22 can open the hot water side electromagnetic valve 22G while the user is pressing the hot water supply button 14B of the operation section 14. Thereby, the hot water introduced into the water inlet port side of the hot water side electromagnetic valve 22G can be introduced into the drinking water discharger 23 via the hot water side electromagnetic valve 22G. And hot water is discharged from the drinking water outlet 23A and supplied to the user. And after taking out a desired amount of hot water, if it stops pushing the hot water supply button 14B, the hot water side solenoid valve 22G can be closed. Thereby, introduction | transduction to the drinking water spouting part 23 of hot water can be stopped.

  Moreover, the drinking water discharge part water conduit 22 can drive the pump 21A of the drinking water cooling part water conduit 21, and can open the circulation path electromagnetic valve 22E. Thereby, the hot water heated by the heating unit is sent to the drinking water cooling unit 11 and returns to the drinking water heating unit 12 again via the hot water circulation path 22C, and the hot water circulates and fills the device. The inside can be sterilized.

  When the drinking water discharge channel 22D drives the pump 21A of the drinking water cooling unit conduit 21 to circulate hot water in the apparatus, the drinking water discharge channel 22D reaches the respective inlet ports of the cooling water side solenoid valve 22F and the hot water side solenoid valve 22G. Hot water is filled. Then, the heat of hot water is transmitted between the cooling water side electromagnetic valve 22F and the hot water side electromagnetic valve 22G of the drinking water discharge channel 22D. The drinking water discharge channel 22D is formed of a synthetic resin between the cooling water side solenoid valve 22F and the hot water side solenoid valve 22G. For this reason, it is difficult for the drinking water discharge channel 22D to transmit the heat of hot water between the cooling water side electromagnetic valve 22F and the hot water side electromagnetic valve 22G. That is, in the drinking water discharge channel 22D, the temperature between the cooling water side solenoid valve 22F and the hot water side solenoid valve 22G is unlikely to rise to a temperature at which miscellaneous bacteria can easily propagate. Thereby, the drinking water discharge channel 22D can suppress propagation of various germs between the cooling water side solenoid valve 22F and the hot water side solenoid valve 22G.

  The drinking water spouting part 23 has a tubular shape. The drinking water spouting portion 23 is made of a synthetic resin. One end of the tubular portion of the drinking water spouting portion 23 communicates between the circulation path electromagnetic valve 22E and the cooling water side electromagnetic valve 22F of the drinking water discharging water passage 22D. In addition, the other end of the drinking water spouting portion 23 communicates with a drinking water spout 23A provided on the lower side of an upper surface portion 13D of the supply portion 13 described later provided on the front side of the water server main body 50.

  The drinking water spouting portion 23 configured in this way is supplied from the drinking water spout 23A described later with the cooling water cooled by the drinking water cooling portion 11 and the hot water heated by the drinking water heating portion 12 from the drinking water discharging portion conduit 22. Water can be discharged and supplied to the user. That is, the water server body 50 can supply cooling water and hot water to the user.

  The drinking water spouting portion 23 is made of a synthetic resin. For this reason, it is difficult for the drinking water spouting part 23 to transmit heat from between the cooling water side electromagnetic valve 22F and the hot water side electromagnetic valve 22G of the drinking water discharging water channel 22D. That is, the drinking water spouting portion 23 is unlikely to rise to a temperature at which various germs can easily propagate. Thereby, the drinking water spouting part 23 can suppress that germs propagate.

  As shown in FIG. 1, the carbon dioxide supply function unit 2 includes a carbon dioxide introduction unit 30, a carbon dioxide channel 32, and a carbon dioxide injection unit 31. The carbon dioxide introduction part 30 is provided inside the lower part of the front side of the water server body 50 (see FIGS. 6 and 7). As shown in FIG. 3, the carbon dioxide introduction part 30 has a carbon dioxide introduction port 30A and a cylinder guide part 30B which is a second guide part.

  The carbon dioxide gas inlet 30A has a cylindrical shape and extends vertically. The carbon dioxide gas inlet 30A has a cylindrical lower end opened to form an opening 30F. The carbon dioxide gas inlet 30A is formed with a female thread in the circumferential direction on a cylindrical inner peripheral surface. The carbon dioxide gas inlet 30A is provided with a carbon dioxide gas inlet upper wall 30C having a cylindrical upper end extending in a flat plate shape toward the inside of the cylinder. The upper wall 30C of the carbon dioxide gas inlet has a convex portion 30D that protrudes downward in a cylindrical shape from the lower surface on the inner peripheral side. Further, the upper end wall 30C of the carbon dioxide gas inlet is connected to one end of the tubular carbon dioxide channel 32 having a tubular shape, which will be described later, on the upper surface on the inner peripheral side. The carbon dioxide gas inlet 30 </ b> A has a cylindrical projection 30 </ b> D communicating with one end of the carbon dioxide gas channel 32.

  The cylinder guide portion 30B has a cylindrical shape, and extends in the vertical direction so as to cover the carbon dioxide gas inlet 30A on the cylindrical outer side of the carbon dioxide gas inlet 30A. Further, the cylinder guide portion 30B has a cylindrical central axis disposed on the cylindrical central axis of the carbon dioxide gas inlet 30A. In the cylinder guide portion 30B, a vertical section facing the outer peripheral surface of the carbon dioxide gas inlet 30A is in contact with the outer peripheral surface of the carbon dioxide gas inlet 30A. The cylinder guide portion 30B is formed with a diameter-expanded portion 30G that expands downward while extending from the lower side of the vertical section facing the outer peripheral surface of the carbon dioxide gas inlet 30A toward the outer side in the radial direction. Yes. The cylinder guide portion 30B is formed with a straight portion 30H having a cylindrical diameter extending downward from the lower end of the enlarged diameter portion 30G. The straight portion 30H has a cylindrical inner diameter that is slightly larger than the outer diameter of the cylinder main body 52A of the cylinder 52 described later. The cylinder guide part 30B is opened with the lower end of the straight part 30H extending downward from the lower end of the carbon dioxide gas inlet 30A. The cylinder guide part 30B is provided with a cylinder guide part upper wall 30E whose upper end extends in a flat plate shape toward the inside of the cylinder. The cylinder guide upper wall 30E has an inner peripheral lower surface in contact with an upper surface of the carbon dioxide gas inlet upper wall 30C.

  The carbon dioxide gas inlet 30 configured as described above can introduce the carbon dioxide gas discharged from the cylinder 52 into the water server through the carbon dioxide gas inlet 30A. In detail, the carbon dioxide introduction part 30 inserts the carbon dioxide discharge part 52B of the cylinder 52 from the cylindrical open lower end of the straight part 30H of the cylinder guide part 30B, and inserts the cylinder 52. Further, even when the carbon dioxide gas introduction part 30 is inserted into the cylinder guide part 30B in an oblique direction, the carbon dioxide gas discharge part 52B of the cylinder 52 is slid along the inside of the enlarged diameter part 30G. The gas is reliably guided to the gas inlet 30A. That is, the cylinder guide unit 30B guides the cylinder 52 and causes the carbon dioxide gas discharge port 52C of the cylinder 52 to communicate with the carbon dioxide gas introduction port 30A of the carbon dioxide gas introduction unit 30. For this reason, the carbon dioxide gas discharge port 52C of the cylinder 52 can be reliably guided and communicated with the carbon dioxide gas introduction port 30A. For this reason, the carbon dioxide introduction part 30 can prevent poor connection between the carbon dioxide discharge port 52C of the cylinder 52 and the carbon dioxide introduction port 30A, and prevent the carbon dioxide from leaking due to poor connection. Can do.

  Here, the structure of the cylinder 52 attached to the carbon dioxide introduction part 30 will be described. The cylinder 52 is made of metal. As shown in FIG. 3, the cylinder 52 includes a cylinder main body 52A and a carbon dioxide discharge part 52B. The cylinder main body 52A and the carbon dioxide gas discharge part 52B are cylindrical. The outer diameter of the carbon dioxide discharge part 52B is smaller than the outer diameter of the cylinder main body 52A. The carbon dioxide discharge part 52B has a cylindrical base end coaxially provided at one end of the cylinder main body 52A. The carbon dioxide discharge part 52B has a male screw formed in the circumferential direction on the outer peripheral surface. The cylinder 52 can store approximately 74 grams of carbon dioxide. This water server can produce about 10 liters of carbonated water when one cylinder 52 is attached. That is, it is not necessary for the water server to install a new cylinder 52 every time carbonated water is produced.

  Further, the carbon dioxide introduction part 30 can screw the carbon dioxide discharge part 52B of the cylinder 52 into the carbon dioxide introduction port 30A. Then, the cylindrical tip surface of the carbon dioxide discharge part 52B is pressed against the lower end of the convex portion 30D provided in the carbon dioxide gas inlet 30A, and the lower end of the convex portion 30D penetrates the cylindrical tip surface, Can be opened. In this way, the carbon dioxide gas discharge port 52C can be formed on the tip surface of the carbon dioxide gas discharge part 52B. Thus, the carbon dioxide gas introduced from the carbon dioxide gas outlet 52C of the cylinder 52 is introduced into the carbon dioxide gas flow path 32 through the carbon dioxide gas inlet 30A.

  As shown in FIG. 1, the carbon dioxide channel 32 extends in a tubular shape. One end of the carbon dioxide gas flow path 32 is connected to the carbon dioxide gas inlet upper wall 30C of the carbon dioxide gas inlet 30A, and the other end is connected to the carbon dioxide gas injection part on / off valve side upper wall part 31D of the carbon dioxide gas injection part on / off valve 31A described later. It is connected to. The carbon dioxide gas flow path 32 is provided at one end thereof with a pressure reducing valve 32A communicating therewith. The carbon dioxide gas flow path 32 is provided with a hinge part 32 </ b> B that can be bent and extended in the vicinity of the carbon dioxide gas introduction part 30.

  The carbon dioxide gas flow path 32 is provided adjacent to the carbon dioxide gas injection part opening / closing valve 31A and in communication with a carbon dioxide electromagnetic valve 32C as a first opening / closing valve. The carbon dioxide gas solenoid valve 32C is electrically connected to the control unit.

  The carbon dioxide channel 32 thus configured can guide the carbon dioxide introduced from the carbon dioxide introduction part 30 to the carbon dioxide injection part 31. Specifically, the carbon dioxide gas flow path 32 can adjust the flow rate of the carbon dioxide gas introduced from the carbon dioxide gas introduction port 30A and flowing toward the carbon dioxide gas injection unit 31 side by adjusting the pressure reducing valve 32A to a desired flow rate. The pressure reducing valve 32A may be adjusted in advance to a predetermined flow rate when the apparatus is manufactured, or may be adjusted to a desired flow rate by a user's operation. The carbon dioxide channel 32 can introduce carbon dioxide to the inflow port side of the carbon dioxide solenoid valve 32C. Further, the carbon dioxide gas flow path 32 can be opened while the carbon dioxide gas supply button 14C of the operation unit 14 electrically connected to the control unit is being pressed when the user uses the carbon dioxide electromagnetic valve 32C. . Further, the carbon dioxide electromagnetic valve 32C can be closed when the carbon dioxide supply button 14C is stopped.

  Further, the carbon dioxide gas channel 32 operates the hinge portion 32B to turn the carbon dioxide gas introduction portion 30 so that the lower end of the carbon dioxide gas introduction port 30A is directed to the front side of the water server body 50 which is the direction of the operator. Can do. For this reason, when the carbon dioxide gas flow path 32 is fitted with the cylinder 52 and the carbon dioxide discharge port 52C is communicated with the carbon dioxide introduction port 30A, the carbon dioxide introduction port 30A can be directed toward the operator. It can be easily installed.

  Further, since the carbon dioxide gas flow channel 32 can operate the hinge portion 32B and rotate the carbon dioxide gas introduction portion 30 to turn the lower end of the carbon dioxide gas introduction port 30A downward in the vertical direction. Then, the carbon dioxide gas inlet 30A rotates together with the cylinder 52 so that the cylinder 52 can be accommodated in the apparatus. Thus, since this water server can easily store the cylinder 52 in the apparatus, the depth dimension can be reduced. That is, the carbon dioxide gas inlet 30 </ b> A can be rotated between the opening direction when the cylinder 52 is mounted and the opening direction when the cylinder 52 is stored.

  The carbon dioxide injection unit 31 is provided in a supply unit 13 described later provided on the front side of the water server main body 50. That is, the water server body 50 can supply carbon dioxide to the user. As shown in FIGS. 4 and 5, the carbon dioxide injection unit 31 includes a carbon dioxide injection unit on / off valve 31 </ b> A that is a second on / off valve, and a check valve guide unit 31 </ b> B.

  The carbon dioxide injection unit on / off valve 31A includes a carbon dioxide injection unit on / off valve side cylinder portion 31C, a carbon dioxide injection unit on / off valve side upper wall portion 31D, a carbon dioxide injection unit on / off valve side lower wall portion 31E, a carbon dioxide injection port 31F, A gas injection part on / off valve side valve element 31G and a carbon dioxide injection part on / off valve side spring 31H are provided. The carbon dioxide gas injection part opening / closing valve side cylinder part 31C has a cylindrical shape and extends in the vertical direction. The carbon dioxide gas injection part on / off valve side upper wall part 31D extends in a flat plate shape from the upper end of the carbon dioxide gas injection part on / off valve side cylinder part 31C toward the inside. The carbon dioxide gas injection part opening / closing valve side upper wall part 31D is connected to the inner upper surface at the other end having a tubular shape of the carbon dioxide gas flow path 32. The lower wall portion 31E on the carbon dioxide gas injection portion on / off valve side extends in a flat plate shape from the lower end of the carbon dioxide gas injection portion on / off valve side cylindrical portion 31C toward the inside.

  The carbon dioxide gas injection port 31F is provided in the flat plate-like central portion of the carbon dioxide gas injection portion opening / closing valve side lower wall portion 31E so as to penetrate vertically. The carbon dioxide gas injection part on / off valve side valve element 31G is provided on the upper side of the carbon dioxide gas injection port 31F provided on the carbon dioxide gas injection part on / off valve side lower wall part 31E. The carbon dioxide gas injection part opening / closing valve side valve body 31G has a narrow truncated cone shape in the downward direction. The lower side of the carbon dioxide gas injection section opening / closing valve side valve element 31G is inserted downward from the upper side of the carbon dioxide injection port 31F, and protrudes below the carbon dioxide injection port 31F. The carbon dioxide gas injection part on / off valve side valve body 31G has a frustoconical outer peripheral surface that is in contact with the upper end of the inner peripheral surface of the carbon dioxide gas injection port 31F.

  The carbon dioxide injection part on / off valve side spring 31H is provided above the carbon dioxide injection part on / off valve side valve body 31G. The carbon dioxide gas injection portion opening / closing valve side spring 31H is a compression coil spring. The carbon dioxide gas injection unit on / off valve side spring 31H is arranged in the vertical direction, and the lower end is connected to the upper end surface of the carbon dioxide gas injection unit on / off valve side valve body 31G. Further, the upper end of the carbon dioxide gas injection part on / off valve side spring 31H is connected to the lower surface of the carbon dioxide gas injection part on / off valve side upper wall part 31D. The carbon dioxide gas injection part on / off valve side valve element 31G is provided with the elastic force of the carbon dioxide gas injection part on / off valve side spring 31H in the downward direction. That is, the carbon dioxide gas injection part on / off valve side valve body 31G can close the carbon dioxide gas injection port 31F with the frustoconical outer peripheral surface coming into contact with the upper end of the inner peripheral surface of the carbon dioxide injection port 31F.

  The check valve guide portion 31B has a cylindrical shape and hangs from the lower end portion of the outer peripheral surface of the carbon dioxide gas injection portion opening / closing valve side tubular portion 31C. The carbon dioxide injection section 31 is provided on the lower side of the upper wall section 31D of the supply section 13 which will be described later. It is provided in contact with.

  Further, the check valve guide portion 31B is provided with an engaging member 31J on the inner side of the cylinder. The engaging member 31J has an annular shape whose dimension in the front-rear direction is larger than that in the left-right direction. The engaging member 31J forms an inclined surface in which an annular inner lower end portion is inclined outward. When the check valve 40G of the carbon dioxide inflow portion 40B of the container 40 described later is inserted into the check valve guide portion 31B, the upper end of the outer peripheral surface of the check valve 40G is the lower end of the engagement member 31J. The engaging member 31J is pushed and expanded in the left-right direction while abutting against the inclined surface formed in the left and right. At this time, the engaging member 31J enters the groove 31K formed on the cylindrical inner side of the check valve guide portion 31B. When the check valve 40G of the carbon dioxide inflow portion 40B communicates with the carbon dioxide injection portion opening / closing valve 31A of the carbon dioxide injection portion 31, the engagement member 31J is engaged with the engagement groove 40S formed on the outer peripheral surface of the check valve 40G. The check valve 40G and the carbon dioxide gas injection part opening / closing valve 31A can be kept in communication with each other.

  Further, the check valve guide portion 31B is provided with push buttons (not shown) on the front side and the rear side of the cylindrical outer side. These push buttons can release the grip of the check valve 40G by the engaging member 31J. Specifically, when each of these push buttons is pushed toward the cylindrical inner side of the check valve guide portion 31B, the engagement member 31J is pushed from the front-rear direction. Then, the dimension in the left-right direction of the engaging member 31J increases. Then, the engagement between the engagement member 31J and the engagement groove 40S of the check valve 40G is released. In this way, the state where the check valve 40G and the carbon dioxide gas injection part opening / closing valve 31A communicate with each other is released, and the container 40 can be removed from the water server body 50.

  The carbon dioxide gas injection unit 31 thus configured can inject carbon dioxide from the carbon dioxide injection port 31F to supply carbon dioxide to the user. More specifically, the carbon dioxide injection section 31 guides the check valve 40G of the carbon dioxide inflow section 40B of the container 40 by inserting it into the check valve guide section 31B of the carbon dioxide injection section 31 to guide the carbon dioxide inflow section of the container 40. The non-return valve 40G of 40B is communicated with the carbon dioxide injection section opening / closing valve 31A of the carbon dioxide injection section 31. At this time, the carbon dioxide injection section 31 has a lower end surface of the carbon dioxide injection section opening / closing valve side valve body 31G of the carbon dioxide injection section opening / closing valve 31A of the check valve side valve body 40Q of the check valve 40G of the carbon dioxide inflow section 40B. It is pushed up by the upper end surface. Then, a clearance gap is formed between the frustoconical outer peripheral surface of the carbon dioxide gas injection part on / off valve side valve body 31G and the upper end of the inner peripheral surface of the carbon dioxide gas injection port 31F. At this time, a gap is also formed between the frustoconical outer peripheral surface of the check valve side valve body 40Q and the lower end of the inner peripheral surface of the carbon dioxide gas inlet 40N. In other words, the carbon dioxide injection section 31 does not open the carbon dioxide injection section opening / closing valve 31A unless the carbon dioxide inlet 40N of the container 40 communicates with the carbon dioxide injection opening 31F. Further, the carbon dioxide gas injection unit 31 does not generate carbon dioxide even if the carbon dioxide electromagnetic valve 32C is inadvertently opened in a state where the carbon dioxide gas inlet 40N of the container 40 described later is not in communication with the carbon dioxide gas injection port 31F. Ejection from the gas injection port 31F can be suppressed.

  The carbon dioxide injection unit 31 opens the carbon dioxide electromagnetic valve 32C while the user presses the carbon dioxide supply button 14C of the operation unit 14, and converts the carbon dioxide introduced from the carbon dioxide introduction unit 30 into the carbon dioxide injection port 31F. Can be injected into the container 40. When the carbon dioxide supply button 14C is stopped, the carbon dioxide electromagnetic valve 32C is closed, and the carbon dioxide injection from the carbon dioxide injection port 31F is stopped, so that the carbon dioxide flows into the container 40. You can also stop.

  The supply unit 13 is provided on the front side of the central portion of the water server main body 50 (see FIGS. 6 and 7). As shown in FIG. 8, the supply unit 13 is formed with a concave portion 13 </ b> A whose left and right central portions are recessed backward.

  The supply part 13 is formed with a storage part guide part 13B which is a first guide part recessed in the rearward direction on the right side of the concave part 13A. The storage portion guide portion 13B is formed such that its radius of curvature is substantially constant in the cross-sectional shape in the left-right direction. The storage portion guide portion 13 </ b> B has a curvature radius that is substantially the same as the cylindrical outer diameter of the storage portion 40 </ b> A of the container 40.

  The supply unit 13 is formed with a lower surface portion 13C extending in a flat plate shape at the lower end of the recess portion 13A and the storage portion guide portion 13B. The lower surface portion 13 </ b> C is provided with a plurality of drain holes 13 </ b> E penetrating in a vertical direction in a flat central portion. When the drainage hole 13E discharges drinking water from the drinking water spout 23A and allows it to flow into the container 40, the water that has not flowed into the container 40 can flow to the drip tray 51 provided directly below the lower surface portion 13C. The flat lower surface portion 13C and the drip tray 51 can be removed from the supply portion 13 (not shown). Thus, the water accumulated in the drip tray 51 can be easily discarded. Moreover, this water server can arrange | position the container with a bigger dimension of an up-down direction to the supply part 13 by removing the lower surface part 13C and the drip tray 51. FIG. For this reason, this water server can flow cooling water, hot water, and carbon dioxide into various containers. The supply unit 13 is formed with a continuous upper surface portion 13D extending in a flat plate shape at the upper end of the recess 13A and the storage portion guide portion 13B. The front end of the upper surface portion 13 </ b> D is continuous with the outer peripheral surface of the water server main body 50.

  As shown in FIG. 6, the supply unit 13 is provided with a drinking water spout 23 </ b> A in the left and right central part on the lower side of the upper surface part 13 </ b> D. Further, the supply unit 13 is provided with a carbon dioxide gas injection unit 31 on the lower right side of the upper surface part 13D. That is, this water server is provided with the drinking water spouting unit 23 and the carbon dioxide gas injection unit 31 side by side. The carbon dioxide injection section 31 is provided with the center of the carbon dioxide injection opening 31F of the carbon dioxide injection section opening / closing valve 31A aligned with the center of the radius of curvature of the storage section guide section 13B (see FIG. 8).

  The supply unit 13 configured in this way can supply cooling water and hot water to the user from a drinking water spout 23A provided on the lower side of the upper surface part 13D. In detail, the supply part 13 can arrange | position the storage part 40A of the container 40 mentioned later directly under the drinking water spout 23A provided in the lower side of upper surface part 13D. And the cooling water discharged from the drinking water outlet 23A can be made to flow in the storage part 40A of the container 40 via the cooling water inflow part 40D.

  Further, the supply unit 13 can supply carbon dioxide gas to the user from the carbon dioxide gas injection unit 31 provided below the upper surface part 13D. Specifically, the supply unit 13 can bring the outer peripheral surface of the storage unit 40A of the container 40 into contact with the storage unit guide unit 13B. Thereby, the supply part 13 can easily insert the check valve 40G of the carbon dioxide inflow part 40B attached to the storage part 40A of the container 40 into the check valve guide part 31B of the carbon dioxide injection part 31. That is, the storage unit guide unit 13B stores the cooling water, guides the container 40 having the carbon dioxide gas inlet 40N through which the carbon dioxide gas flows in, and guides the carbon dioxide gas inlet 40N of the carbon dioxide gas inlet unit 40B to the carbon dioxide injection port 31F. Can be easily communicated with. In addition, the supply unit 13 can prevent the carbon dioxide inflow unit 40B from being unintentionally damaged and deformed around the carbon dioxide injection unit 31 and the carbon dioxide injection unit 31. And the carbon dioxide injected from the carbon dioxide injection part 31 can be made to flow into the container 40.

  Moreover, since the supply part 13 has the drinking water spouting part 23 and the carbon dioxide gas injection part 31 arranged side by side, the carbonated water can be produced immediately before the cooling water flowing into the storage part 40A is warmed. More carbon dioxide gas can be mixed with the cooling water, and higher concentration carbonated water can be produced.

  As shown in FIG. 4, the container 40 has a storage part 40A and a carbon dioxide inflow part 40B. The reservoir 40A has a cooling water inflow portion 40D. The storage portion 40A is cylindrical and extends in the up-down direction, and the lower end is closed. The storage portion 40A is formed with a storage portion upper wall 40C that is curved and extends inward while bulging upward at the cylindrical upper end. The cooling water inflow portion 40D has a cylindrical shape and extends from the upper surface of the inner periphery of the reservoir upper wall 40C. The outer diameter of the cooling water inflow portion 40D is smaller than the outer diameter of the storage portion 40A. Further, the cooling water inflow portion 40D has a male screw formed in the circumferential direction on the outer peripheral surface.

  The carbon dioxide inflow portion 40B includes a carbon dioxide inflow passage 40E, a lid portion 40F, and a check valve 40G. The carbon dioxide inflow passage 40E has a tubular shape and extends in the vertical direction. The carbon dioxide inflow passage 40E is provided with a carbon dioxide outlet 40H at the lower end. The lid portion 40F includes an annular portion 40J and a cylindrical portion 40K. The annular portion 40J extends in an annular shape from the outer peripheral surface of the upper end portion of the carbon dioxide inflow passage 40E to the outer radial direction. The cylindrical portion 40K has a cylindrical shape and hangs from the outer peripheral surface of the annular portion 40J. The cylindrical portion 40K is formed with a female thread in the circumferential direction on a cylindrical inner peripheral surface. Moreover, when the container 40 screws the carbon dioxide inflow part 40B into the storage part 40A, the lower end of the carbon dioxide inflow path 40E extends to the vicinity of the bottom surface of the storage part 40A. That is, the container 40 has the carbon dioxide gas outlet 40H disposed in the vicinity of the bottom surface of the storage portion 40A.

  As shown in FIGS. 4 and 5, the check valve 40G includes a check valve side cylinder portion 40L, a check valve side upper wall portion 40M, a carbon dioxide gas inlet 40N, a check valve side lower wall portion 40P, and a check valve. A side valve body 40Q and a check valve side spring 40R are provided. The check valve side cylinder portion 40L has a cylindrical shape and extends in the vertical direction. The check valve side cylinder portion 40L is provided with an engagement groove 40S that is recessed inwardly at the top of the outer peripheral surface. The check valve side upper wall part 40M extends in a flat plate shape from the upper end of the check valve side cylinder part 40L inward.

  The carbon dioxide gas inlet 40N is provided so as to penetrate in the vertical direction in the flat central portion of the check valve side upper wall portion 40M. The check valve side lower wall portion 40P extends in a flat plate shape from the lower end of the check valve side cylinder portion 40L toward the inside. An inner lower surface of the check valve side lower wall portion 40P communicates with the upper end of the carbon dioxide inflow passage 40E.

  The check valve side valve body 40Q is provided below the carbon dioxide gas inlet 40N provided in the check valve side upper wall portion 40M. The check valve side valve body 40Q has a truncated cone shape in the upward direction. The check valve side valve body 40Q has a truncated cone-shaped upper side inserted upward from the lower side of the carbon dioxide gas inlet 40N and protrudes above the carbon dioxide gas inlet 40N. The check valve side valve body 40Q has a frustoconical outer peripheral surface in contact with the lower end of the inner peripheral surface of the carbon dioxide inlet 40N.

  The check valve side spring 40R is provided below the check valve side valve body 40Q. The check valve side spring 40R is a compression coil spring. The check valve side spring 40R is arranged in the vertical direction, and the upper end is connected to the lower end surface of the check valve side valve body 40Q. The lower end of the check valve side spring 40R is coupled to the upper surface of the check valve side lower wall portion 40P. The check valve side valve body 40Q is provided with the elastic force of the check valve side spring 40R in the upward direction. That is, the check valve side valve body 40Q can close the carbon dioxide gas inlet 40N by the frustoconical outer circumferential surface coming into contact with the lower end of the inner circumferential surface of the carbon dioxide gas inlet 40N.

  The container 40 thus configured can hold cooling water and carbon dioxide gas therein. In detail, the container 40 screws the internal thread provided in the cylindrical part 40K of the cover part 40F provided in the carbon dioxide inflow part 40B into the external thread provided in the cooling water inflow part 40D of the storage part 40A. Thereby, the container 40 can seal an inside and can hold | maintain a cooling water and a carbon dioxide gas inflow inside. Specifically, when carbon dioxide gas is caused to flow into the container 40 into which cooling water has been introduced, the carbon dioxide gas flows into the container 40 through the carbon dioxide gas outlet 40H. At this time, in the container 40, the lower end of the carbon dioxide inflow path 40E extends to the vicinity of the bottom surface of the container 40, and the carbon dioxide outlet 40H is disposed in the vicinity of the bottom surface of the storage portion 40A. Thereby, the container 40 can make the distance which the carbon dioxide gas which flowed in in the container 40 passes in cooling water longer. For this reason, the container 40 can dissolve more carbon dioxide gas into the cooling water while uniformly stirring the cooling water flowing into the storage portion 40A with the carbon dioxide gas.

  Further, the inside of the container 40 holds carbon dioxide gas that has not been dissolved in the cooling water. At this time, the container 40 is removed from the supply unit 13 and shaken with the lid 40F screwed into the cooling water inflow unit 40D, thereby stirring the cooling water in the container 40 and the carbon dioxide gas held on the top of the container 40. can do. Thereby, the carbon dioxide gas hold | maintained at the upper part of the container 40 is not wasted, but carbonated water can be manufactured efficiently.

  Next, the operation of this water server will be described.

  First, as shown in FIG. 1, a bag 53 filled with drinking water is stored in a cartridge 10F. The bag 53 is made of a synthetic resin such as polypropylene. Then, the upper lid 10J is placed on the upper end of the peripheral wall 10H in contact with the upper end of the peripheral wall 10H. Next, as illustrated in FIG. 2B, the cartridge 10 </ b> F containing the bag 53 filled with drinking water is placed on the drinking water placement unit 10. When the cartridge 10F is placed on the drinking water placing portion 10, the cover member 10D is pushed down by the protective wall portion 10M coming into contact with the cartridge bottom wall 10G of the cartridge 10F. At this time, in the protective wall portion 10M, the needle insertion hole 10N passes through the needle portion 20A of the drinking water placing portion water conduit 20. And the hollow part 10P of the cartridge 10F fits into the standing wall part 10B of the drinking water mounting part 10. FIG. The lower surface of the cartridge bottom wall 10G of the cartridge 10F comes into contact with the upper surface of the drinking water mounting portion bottom wall 10A of the drinking water mounting portion 10. At this time, the upper end of the needle portion 20A of the drinking water mounting portion water guide channel 20 is inserted through the through hole 10Q provided in the cartridge bottom wall 10G, and pierces the bag 53 while protruding above the cartridge bottom wall 10G. In addition, even if drinking water leaks out from the bag 53 to the drinking water mounting part 10, it can be poured to the drip tray 51 via the drinking water mounting part drainage channel 10C.

  As shown in FIG. 1, the drinking water filled in the bag 53 is the drinking water partitioned by the partition portion 11A via the drinking water introduction hole 20B provided in the needle portion 20A and the drinking water mounting portion water conduit 20. It is introduced into the space above the cooling unit 11. And the drinking water is partitioned by the partition portion 11A through a gap formed between the outer peripheral surface of the partition portion 11A of the drinking water cooling portion 11 and the cylindrical inner peripheral surface of the drinking water cooling portion 11. It is introduced into the space below the cooling unit 11. Further, the drinking water introduced into the space below the drinking water cooling unit 11 enters the cooling water side electromagnetic valve 22F of the drinking water discharge channel 22D via the cooling water channel 22A side of the drinking water discharge unit conduit 22. It is introduced to the port side and the water inlet port side of the circuit solenoid valve 22E of the hot water circuit 22C. In addition, the drinking water is introduced into the drinking water heating unit 12 through the through-hole 11B of the partition unit 11A and the drinking water cooling unit conduit 21. Furthermore, the drinking water introduced into the drinking water heating unit 12 is supplied via the hot water flow path 22B side of the drinking water discharge section conduit 22 and the hot water side of the hot water side solenoid valve 22G of the drinking water discharge path 22D and hot water. It is introduced to the non-water-inlet port side of the circulation path solenoid valve 22E of the circulation path 22C.

  And when the value corresponding to the water level of the drinking water introduced into the drinking water cooling unit 11 detected by the float switch 11D of the drinking water cooling unit 11 becomes larger than a predetermined value, the drinking water introduction electromagnetic valve 20C is closed. To do. This completes the introduction of drinking water into the water server.

  In addition, when more drinking water is introduced into the drinking water cooling unit 11 than a predetermined amount, the function of the float switch 11D is stopped. Thereby, the control unit of this water server can stop the operation of the apparatus. Moreover, since the air filter 11F is provided in the drinking water cooling part drainage path 11E, it can prevent that a foreign material penetrate | invades in the drinking water cooling part 11 via the drinking water cooling part drainage path 11E.

  Next, as shown in FIGS. 1, 3, and 7, a cylinder 52 in which carbon dioxide is stored is attached to the carbon dioxide introduction part 30.

  First, the hinge part 32B provided in the carbon dioxide gas flow path 32 is operated, the carbon dioxide gas introduction part 30 is rotated, and the opening part 30F which is the lower end which the carbon dioxide gas introduction port 30A opened is water which is the direction of an operator. It faces toward the front side of the server main body 50.

  Next, the carbon dioxide discharge part 52B of the cylinder 52 is inserted from the cylindrical open lower end of the linear part 30H of the cylinder guide part 30B of the carbon dioxide introduction part 30, and the cylinder 52 is inserted. Then, the carbon dioxide discharge part 52B of the cylinder 52 is screwed into the carbon dioxide introduction port 30A. Then, the cylindrical tip surface of the carbon dioxide discharge part 52B is pressed against the lower end of the convex portion 30D provided in the carbon dioxide gas inlet 30A, and the lower end of the convex portion 30D penetrates the cylindrical tip surface, Open the plug. In this way, the carbon dioxide discharge port 52C is formed at the tip end surface of the carbon dioxide discharge portion 52B. That is, the cylinder guide unit 30B guides the cylinder 52 and causes the carbon dioxide gas discharge port 52C of the cylinder 52 to communicate with the carbon dioxide gas introduction port 30A of the carbon dioxide gas introduction unit 30. Then, the carbon dioxide gas flowing out from the carbon dioxide gas discharge port 52 </ b> C of the cylinder 52 is introduced into the carbon dioxide gas flow path 32 through the carbon dioxide gas introduction port 30 </ b> A of the carbon dioxide gas introduction unit 30.

  At this time, by adjusting the pressure reducing valve 32A provided in the carbon dioxide gas flow path 32, the flow rate of the carbon dioxide gas introduced from the carbon dioxide gas inlet 30A and flowing to the carbon dioxide gas injection unit 31 side can be adjusted to a desired flow rate. it can. The pressure reducing valve 32A may be adjusted in advance to a predetermined flow rate when the apparatus is manufactured, or may be adjusted to a desired flow rate by a user's operation. Then, carbon dioxide is introduced to the inflow port side of the carbon dioxide solenoid valve 32C. And the hinge part 32B provided in the carbon dioxide gas flow path 32 is operated, the carbon dioxide gas introduction part 30 is rotated, the lower end where the carbon dioxide gas introduction port 30A is opened is directed downward in the vertical direction, and the cylinder 52 is placed in the water server. It is stored in the main body 50. That is, the carbon dioxide gas inlet 30 </ b> A can be rotated between the opening direction when the cylinder 52 is mounted and the opening direction when the cylinder 52 is stored. Thus, the introduction of carbon dioxide into the water server is completed.

  When discharging cooling water from the drinking water outlet 23A, the cooling water side electromagnetic valve 22F is opened while the user presses the cooling water supply button 14A of the operation unit 14. Then, the cooling water introduced into the water inlet port side of the cooling water side electromagnetic valve 22F is introduced into the drinking water discharging unit 23 via the cooling water side electromagnetic valve 22F. Then, cooling water is discharged from the drinking water outlet 23A and supplied to the user. Then, after taking out a desired amount of cooling water, when the pressing of the cooling water supply button 14A is stopped, the cooling water side electromagnetic valve 22F is closed. Thereby, the introduction of the cooling water into the drinking water discharging unit 23 is stopped.

  When hot water is discharged from the drinking water spout 23A, the hot water side electromagnetic valve 22G is opened while the user presses the hot water supply button 14B of the operation unit 14. Then, the hot water introduced into the water inlet port side of the hot water side electromagnetic valve 22G is introduced into the drinking water discharger 23 via the hot water side electromagnetic valve 22G. And hot water is discharged from the drinking water outlet 23A and supplied to the user. And after taking out a desired amount of hot water, if it stops pushing the hot water supply button 14B, the hot water side solenoid valve 22G will close. Thereby, the introduction of hot water into the drinking water discharger 23 is stopped.

  When hot water is circulated and filled in the apparatus to sterilize the apparatus, the pump 21A provided in the drinking water cooling section water conduit 21 is driven and the circulation solenoid valve 22E is opened. The sterilization in the apparatus can be automatically performed at predetermined time intervals. First, the pump 21 </ b> A is driven, and hot water heated by the drinking water heating unit 12 passes through the drinking water cooling unit conduit 21 and is sent from the drinking water heating unit 12 toward the drinking water cooling unit 11. Then, the hot water is sent to the space above the drinking water cooling unit 11 partitioned by the partition unit 11A. And hot water is below the drinking water cooling part 11 partitioned by the partition part 11A through a gap formed between the outer peripheral surface of the partition part 11A and the cylindrical inner peripheral surface of the drinking water cooling part 11 Sent to the space. And hot water is sent to the drinking water heating part 12 again via the cooling water flow path 22A, the hot water circulation path 22C, and the hot water flow path 22B of the drinking water discharge section water conduit 22. Thus, this water server can perform sterilization in the apparatus by filling the apparatus with circulating hot water evenly. Then, after circulating the hot water for a predetermined time, the driving of the pump 21A is automatically stopped and the circulation path electromagnetic valve 22E is closed.

  Next, a method for producing carbonated water will be described.

  First, as shown in FIG. 10, the storage portion 40A is disposed directly below the drinking water spout 23A provided on the lower side of the upper surface portion 13D of the supply portion 13 of the water server body 50. Then, the cooling water discharged from the drinking water outlet 23A is caused to flow into the storage portion 40A via the cooling water inflow portion 40D. The temperature of the cooling water is 10 ° C. or less. And as shown in FIG. 11, the carbon dioxide inflow part 40B is attached to the storage part 40A into which the cooling water was made to flow. Specifically, the storage unit 40A into which the cooling water has been introduced is removed from the supply unit 13, and the lid 40F of the carbon dioxide inflow unit 40B is screwed into the cooling water inflow unit 40D of the storage unit 40A. At this time, the carbon dioxide gas outlet 40H of the carbon dioxide inlet 40E of the carbon dioxide inlet 40B is immersed in the cooling water that has flowed into the reservoir 40A. That is, in the carbon dioxide inflow portion 40B, the carbon dioxide gas outlet 40H formed at the lower end of the carbon dioxide inflow passage 40E communicates with the storage portion 40A.

  Next, as shown in FIG. 12, the container 40 is disposed directly below the carbon dioxide injection section 31 provided on the lower side of the upper surface section 13D of the supply section 13 of the water server body 50, and is opposite to the carbon dioxide inflow section 40B. The stop valve 40G is communicated with the carbon dioxide gas injection part opening / closing valve 31A of the carbon dioxide gas injection part 31. At this time, the check valve 40G of the carbon dioxide inflow part 40B is easily inserted into the check valve guide 31B of the carbon dioxide injection part 31 by bringing the outer peripheral surface of the storage part 40A into contact with the storage part guide 13B. be able to. That is, the storage part guide part 13B can guide the container 40, and can connect the carbon dioxide inflow port 40N of the carbon dioxide inflow part 40B to the carbon dioxide injection port 31F.

  Then, as shown in FIG. 5, the check valve 40G of the carbon dioxide inflow part 40B is inserted into the check valve guide part 31B of the carbon dioxide injection part 31. Then, the lower end surface of the carbon dioxide injection section on / off valve side valve body 31G of the carbon dioxide injection section on / off valve 31A of the carbon dioxide injection section 31 and the check valve side valve body 40Q of the check valve 40G of the carbon dioxide inflow section 40B. The end face comes into contact.

  Then, the upper surface of the check valve side upper wall portion 40M of the check valve 40G of the carbon dioxide gas inflow portion 40B is formed on the upper surface of the carbon dioxide gas injection portion on / off valve side wall 31E of the carbon dioxide injection portion on / off valve 31A of the carbon dioxide injection portion 31 Make contact with the bottom surface. Then, the upper end surface of the check valve side valve body 40Q of the check valve 40G of the carbon dioxide gas inflow section 40B and the carbon dioxide injection section opening / closing valve side valve body 31G of the carbon dioxide injection section opening / closing valve 31A of the carbon dioxide injection section 31 The end faces are pressed against each other. Then, a clearance gap is formed between the frustoconical outer peripheral surface of the carbon dioxide gas injection part on / off valve side valve body 31G and the upper end of the inner peripheral surface of the carbon dioxide gas injection port 31F. Further, a gap is formed between the frustoconical outer peripheral surface of the check valve side valve body 40Q and the lower end of the inner peripheral surface of the carbon dioxide gas inlet 40N. Thus, the check valve 40G of the carbon dioxide inflow portion 40B communicates with the carbon dioxide injection portion opening / closing valve 31A of the carbon dioxide injection portion 31. That is, the carbon dioxide injection part on-off valve 31A provided in the carbon dioxide injection part 31 of the water server main body 50 allows the carbon dioxide inflow part 40B of the carbon dioxide inflow part 40B to communicate with the carbon dioxide injection part 31F. The valve is opened in conjunction with a check valve 40G provided in 40B. At this time, the engagement member 31J provided in the check valve guide portion 31B engages with an engagement groove 40S formed on the outer peripheral surface of the check valve 40G, so that the check valve 40G and the carbon dioxide injection portion opening / closing valve are engaged. The state where 31A communicates can be maintained.

  Next, as shown in FIG. 13, carbon dioxide gas is caused to flow into the container 40. Specifically, the carbon dioxide electromagnetic valve 32C is opened while the user presses the carbon dioxide supply button 14C of the operation unit 14. Then, the carbon dioxide introduced into the carbon dioxide introduction part 30 is injected from the carbon dioxide injection port 31 </ b> F of the carbon dioxide injection part 31 and flows into the container 40. That is, this water server injects carbon dioxide from the carbon dioxide injection port 31F and supplies it to the user. At this time, carbon dioxide flows into the cooling water in the container 40 through the carbon dioxide outlet 40H of the carbon dioxide inlet 40E of the carbon dioxide inlet 40B. At this time, the carbon dioxide gas can be dissolved in the cooling water while stirring the cooling water flowing into the container 40.

  When the carbon dioxide electromagnetic valve 32C is opened, the pressure in the carbon dioxide gas flow path 32 becomes small and becomes almost the same as the pressure in the container 40. As the inflow of carbon dioxide into the container 40 proceeds, the pressure in the carbon dioxide channel 32 gradually increases. When the inflow of carbon dioxide into the container 40 further proceeds, the pressure in the carbon dioxide channel 32 becomes substantially equal to the pressure before opening the carbon dioxide solenoid valve 32C. Then, since carbon dioxide gas does not flow into the container 40, stirring of the cooling water in the container 40 by the carbon dioxide gas is also stopped. Thus, the user can visually determine that the inflow of carbon dioxide gas into the container 40 has ended. Then, pressing of the carbon dioxide supply button 14C is stopped, the carbon dioxide electromagnetic valve 32C is closed, and the inflow of the carbon dioxide into the container 40 is stopped. At this time, the inside of the container 40 holds carbon dioxide gas that has not been dissolved in the cooling water at the top.

  Note that a desired amount of carbon dioxide can be caused to flow into the container 40 by continuously pressing the carbon dioxide supply button 14C for a user's desired time. Thereby, this water server can also produce low concentration carbonated water easily. That is, this water server can easily adjust the concentration of carbonated water to be produced as compared with a conventional carbon dioxide gas mixing device that uses up a cylinder each time carbonated water is produced.

  Next, as shown in FIG. 14, the check valve 40G of the carbon dioxide inflow portion 40B is removed from the check valve guide portion 31B of the carbon dioxide injection portion 31, and the container 40 is removed from the supply portion 13. Specifically, when each of a pair of push buttons (not shown) provided in the check valve guide portion 31B is pushed into the cylindrical inside of the check valve guide portion 31B, the engaging member 31J and the check valve 40G are provided. The engagement with the engagement groove 40S is released. In this way, the container 40 is removed from the supply unit 13. At this time, the check valve side valve body 40Q of the check valve 40G makes the frustoconical outer peripheral surface abut on the lower end of the inner peripheral surface of the carbon dioxide inlet 40N by the elastic force of the check valve side spring 40R. Furthermore, since the pressure in the container 40 is greater than atmospheric pressure, the frustoconical outer peripheral surface of the check valve side valve body 40Q is pressed against the lower end of the inner peripheral surface of the carbon dioxide gas inlet 40N. For this reason, the check valve 40G can prevent the carbon dioxide gas flowing into the container 40 from leaking outside from the carbon dioxide gas inlet 40N.

  Further, the carbon dioxide gas injection part on / off valve side valve body 31G of the carbon dioxide gas injection part on / off valve 31A is caused by the elastic force of the carbon dioxide gas injection part on / off valve side spring 31H, so that the frustoconical outer peripheral surface is the inner periphery of the carbon dioxide injection port 31F Abuts the top edge of the surface. Furthermore, since the pressure in the carbon dioxide channel 32 is greater than the atmospheric pressure, the frustoconical outer peripheral surface of the carbon dioxide injection unit on / off valve side valve body 31G is pressed against the upper end of the inner peripheral surface of the carbon dioxide injection port 31F. For this reason, the carbon dioxide injection part on-off valve 31A can prevent the carbon dioxide from leaking outside from the carbon dioxide injection port 31F. Thus, the carbon dioxide inflow portion 40B is detachable from the carbon dioxide injection port 31F at the carbon dioxide inlet 40N of the check valve 40G. And as shown in FIG. 15, the container 40 is shaken and the cooling water which flowed in the container 40 and the carbon dioxide gas hold | maintained at the upper part in the container 40 are stirred. In this way, carbonated water can be efficiently produced without wasting the carbon dioxide gas held in the upper part of the container 40.

  The carbon dioxide gas flow path 32 is provided with a carbon dioxide gas injection part on-off valve 31A and a carbon dioxide gas solenoid valve 32C which are adjacent to each other and communicate with each other. Thereby, the space in the carbon dioxide gas flow path 32 between the carbon dioxide electromagnetic valve 32C and the carbon dioxide injection part opening / closing valve 31A is reduced. Accordingly, the volume of carbon dioxide remaining in the carbon dioxide flow path 32 between the carbon dioxide electromagnetic valve 32C and the carbon dioxide injection section opening / closing valve 31A can be reduced. When the check valve 40G of 40B is communicated with the carbon dioxide injection part opening / closing valve 31A of the carbon dioxide injection part 31, it can be easily communicated.

  As described above, the water server can separately supply the cooling water and the carbon dioxide gas to the user. Thus, the user can produce a desired amount of carbonated water by mixing a desired amount of carbon dioxide gas with a desired amount of cooling water. For this reason, since this water server is not provided with a structure for producing carbonated water in the apparatus, the structure in the apparatus can be simplified. In addition, since this water server does not require a space for providing a structure for producing carbonated water in the apparatus, the outer shape of the apparatus can be further reduced. Moreover, since this water server can produce carbonated water of a user's desired quantity, it can suppress using a cooling water and carbon dioxide gas wastefully.

  Therefore, the water server of the present invention can easily produce carbonated water.

  Moreover, this water server is provided with a drinking water spouting unit 23 and a carbon dioxide gas injection unit 31 side by side. For this reason, this water server can inject carbon dioxide into the cold water taken out from the drinking water discharger 23 immediately from the carbon dioxide injection unit 31 and mix it. As a result, this water server can produce carbonated water immediately before the cooling water warms up, so it is possible to mix more carbon dioxide gas into the cooling water and produce higher concentration carbonated water. Can do.

  Further, this water server guides a container 40 having a carbon dioxide gas inlet 40N for storing cooling water and allowing carbon dioxide to flow in, and a reservoir guide part for communicating the carbon dioxide gas inlet 40N with the carbon dioxide gas injection port 31F. 13B is provided. For this reason, this water server can reliably guide and communicate the carbon dioxide gas inlet 40N provided in the container 40 to the carbon dioxide gas injection port 31F. For this reason, this water server can make the carbon dioxide gas inflow part 40B and the carbon dioxide gas injection part 31 communicate easily. Further, the water server can prevent the carbon dioxide inflow portion 40B from being unintentionally damaged or deformed around the carbon dioxide injection portion 31 or the carbon dioxide injection portion 31 without intention.

  The water server is provided in the carbon dioxide gas solenoid valve 32C that opens and closes the carbon dioxide gas flow path 32 that communicates the carbon dioxide introduction unit 30 and the carbon dioxide injection unit 31, and the carbon dioxide injection port 31. A carbon dioxide injection section opening / closing valve 31A that opens when 40N is communicated with the carbon dioxide injection opening 31F is provided. For this reason, in this water server, unless the carbon dioxide inlet 40N of the container 40 communicates with the carbon dioxide jet 31F, the carbon dioxide jet opening / closing valve 31A does not open. For this reason, the water server injects carbon dioxide even if the carbon dioxide electromagnetic valve 32C is inadvertently opened when the carbon dioxide inlet 40N of the container 40 is not in communication with the carbon dioxide injection port 31F. Ejection from the mouth 31F can be suppressed.

  Further, the carbon dioxide gas introduction part 30 of this water server guides the cylinder 52 having a carbon dioxide gas discharge part 52B having a carbon dioxide gas discharge port 52C through which the carbon dioxide gas is stored and flows out. There is a cylinder guide portion 30B for communicating 52C with the carbon dioxide gas inlet 30A. For this reason, since this water server can guide the cylinder 52 with the cylinder guide part 30B provided in the carbon dioxide introduction part 30, the carbon dioxide discharge port 52C is reliably guided to and communicated with the carbon dioxide introduction part 30A. Can do. For this reason, this water server can prevent poor connection between the carbon dioxide discharge port 52C of the cylinder 52 and the carbon dioxide introduction port 30A, and can prevent carbon dioxide from leaking out due to poor connection. .

  Further, the carbon dioxide gas inlet 30A of the water server rotates between an opening direction when the cylinder 52 is mounted and a direction when the cylinder 52 is stored. For this reason, the water server can easily direct the cylinder 52 because the carbon dioxide introduction port 30A can be directed toward the operator when the cylinder 52 is attached and the carbon dioxide discharge port 52C is communicated with the carbon dioxide introduction port 30A. Can be attached to. Further, in the water server, after the installation of the cylinder 52 is completed, the carbon dioxide gas inlet 30A rotates together with the cylinder 52 so that the cylinder 52 can be stored in the apparatus. Thus, since this water server can easily store the cylinder 52 in the apparatus, the depth dimension can be reduced.

The present invention is not limited to the first embodiment described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the first embodiment, the carbon dioxide inflow portion and the cooling water inflow portion of the container are provided separately. However, the present invention is not limited to this, and the carbon dioxide inflow portion and the cooling water inflow portion may be provided in common. good.
(2) In the first embodiment, the storage section guide section is provided in the supply section. However, the present invention is not limited thereto, and the storage section guide section may not be provided.
(3) In the first embodiment, the storage portion guide portion is provided in the supply portion. However, the present invention is not limited to this, and the check valve guide portion of the carbon dioxide gas injection portion is formed in a wide conical shape in the downward direction. May be guided to the carbon dioxide gas injection part on-off valve.
(4) In Example 1, the check valve guide part of the carbon dioxide injection unit is provided. However, the present invention is not limited thereto, and the check valve guide part of the carbon dioxide injection unit may not be provided.
(5) In Example 1, the cylinder guide part is provided in the carbon dioxide gas introduction part. However, the present invention is not limited thereto, and the cylinder guide part may not be provided in the carbon dioxide gas introduction part.

(6) In Example 1, the hinge part is provided in the carbon dioxide gas flow path. However, the present invention is not limited thereto, and the hinge part may not be provided in the carbon dioxide gas flow path.
(7) In Example 1, the user visually determines the amount of carbon dioxide flowing into the container, but the present invention is not limited thereto, and a flow sensor may be provided in the carbon dioxide channel. In this case, the flow rate of the carbon dioxide gas flowing per unit time in the carbon dioxide channel is monitored by the flow sensor. When carbon dioxide gas flows into the container and the flow rate of the carbon dioxide gas flowing per unit time in the carbon dioxide channel becomes smaller than a predetermined flow rate, the carbon dioxide electromagnetic valve is closed.
(8) In Example 1, the user visually determines the amount of carbon dioxide flowing into the container. However, the present invention is not limited to this, and a pressure sensor may be provided in the carbon dioxide channel. In this case, the pressure sensor monitors the pressure in the carbon dioxide channel. Then, when carbon dioxide gas flows into the container and the pressure in the carbon dioxide channel becomes higher than a predetermined pressure, the carbon dioxide electromagnetic valve is closed.
(9) In Example 1, the carbon dioxide electromagnetic valve is provided in the carbon dioxide flow path, but this is not limiting, and the carbon dioxide electromagnetic valve may not be provided in the carbon dioxide flow path.
(10) In the first embodiment, the circuit solenoid valve is opened and the time for driving the pump provided in the drinking water cooling section water conduit is automatically operated at a predetermined time to heat the apparatus. The water is circulated. However, the present invention is not limited to this, and the user opens the circulation path solenoid valve at a desired time by operating the operation section and drives the pump provided in the drinking water cooling section water conduit to heat. Water may be circulated.

(11) In Example 1, the container is shaken, the cooling water flowing into the container and the carbon dioxide gas held in the upper part of the container are stirred, so that the carbon dioxide gas is not wasted and the carbon dioxide gas is dissolved in the cooling water. However, the present invention is not limited to this, and the carbon dioxide gas may be simply allowed to flow into the cooling water in the container via the carbon dioxide gas outlet of the carbon dioxide gas inlet.
(12) In Example 1, although cooling water and hot water are each discharged from a drinking water outlet, not only this but cooling water and hot water may be discharged from a separate drinking water outlet good.
(13) In the first embodiment, the cooling water side solenoid valve, the hot water side solenoid valve, and the carbon dioxide gas solenoid valve are opened and closed via the control unit. The side solenoid valve and the carbon dioxide gas solenoid valve may be replaced with manual valves, and the valves may be manually opened and closed.
(14) In the first embodiment, the carbon dioxide introduction part is rotated so that the cylindrical opening of the carbon dioxide introduction port faces downward in the vertical direction, and the cylinder is housed in the apparatus main body. Alternatively, the cylinder may be housed in the apparatus main body by rotating the carbon dioxide introduction part so that the cylindrical opening of the carbon dioxide introduction port faces in the upward or leftward direction in the vertical direction.
(15) In Example 1, the drinking water introduction solenoid valve automatically opens and closes by determining the value corresponding to the level of drinking water stored in the drinking water cooling unit detected by the float switch by the control unit. Without limitation, a float valve or the like may be used.
(16) In Example 1, the cooling water and the room temperature water are stored in the drinking water cooling unit, but not limited thereto, the drinking water cooling unit is not provided, and the cooling member is provided in the drinking water cooling unit side flow path. It may be provided. In this case, since the space which provides a drinking water cooling part in an apparatus is unnecessary, the external shape of an apparatus can be made smaller.
(17) In the first embodiment, push buttons are provided on the cylindrical outer front side and the rear side of the check valve guide part. Push buttons may be provided on each of the left side and the right side.
(18) In the first embodiment, the cylinder guide portion 30B includes the enlarged diameter portion 30G and the straight portion 30H, but the inner diameter of the cylinder guide portion 130B is slightly smaller than the outer diameter of the cylinder 52 as shown in FIG. It may be a large constant cylinder. In FIG. 16, the same components as those in the first embodiment are denoted by the same reference numerals.

11 ... Drinking water cooling part 13B ... Storage part guide part (1st guide part)
DESCRIPTION OF SYMBOLS 23 ... Drinking water spout part 23A ... Drinking water spout 30 ... Carbon dioxide introduction part 30A ... Carbon dioxide introduction part 30B, 130B ... Cylinder guide part (2nd guide part)
31 ... Carbon dioxide injection part 31A ... Carbon dioxide injection part on-off valve (second on-off valve)
31F ... Carbon dioxide gas injection port 32 ... Carbon dioxide gas flow path 32C ... Carbon dioxide gas solenoid valve (first on-off valve)
DESCRIPTION OF SYMBOLS 40 ... Container 40B ... Carbon dioxide inflow part 40D ... Cooling water inflow part 40N ... Carbon dioxide gas inlet 52 ... Cylinder 52B ... Carbon dioxide gas discharge part 52C ... Carbon dioxide gas outlet

Claims (6)

A drinking water cooling section for cooling water;
A drinking water spout unit having a drinking water spout for discharging cooling water cooled by this drinking water cooling unit and supplying it to the user,
A carbon dioxide introduction section having a carbon dioxide introduction port for introducing carbon dioxide,
A carbon dioxide gas injection unit having a carbon dioxide injection port for injecting carbon dioxide gas introduced from the carbon dioxide gas introduction unit and supplying it to the user,
Equipped with a,
The water spouting portion and the carbon dioxide gas injection section, water dispenser, characterized that you have been arranged to supply independently to the cooling water and the carbon dioxide gas to a user.   The water server according to claim 1, wherein the drinking water spouting unit and the carbon dioxide gas injection unit are arranged in parallel.   A cooling device is stored, a container having a carbon dioxide gas inlet for introducing carbon dioxide gas is guided, and a first guide portion is provided for communicating the carbon dioxide gas inlet with the carbon dioxide gas injection port. The water server according to claim 2. A first on-off valve that opens and closes a carbon dioxide channel that communicates the carbon dioxide introduction part and the carbon dioxide injection part;
A second on-off valve that is provided in the carbon dioxide gas injection unit and opens when the carbon dioxide gas inlet communicates with the carbon dioxide gas injection port;
The water server according to claim 3, further comprising: The carbon dioxide introduction part is
A carbon dioxide gas is stored, and a cylinder having a carbon dioxide gas discharge port having a carbon dioxide gas discharge port through which carbon dioxide gas flows out is guided, and a second guide portion is provided for communicating the carbon dioxide gas discharge port with the carbon dioxide gas introduction port. The water server according to any one of claims 1 to 4, wherein the water server is provided. The carbon dioxide gas inlet is
The water server according to claim 5, wherein the water server rotates between an opening direction when the cylinder is mounted and an opening direction when the cylinder is stored.