JP6506724B2 - Water heater - Google Patents

Description

  The present invention relates to a water heater that heats water to produce hot water.

  A water heater that heats water to produce hot water is used in coffee makers and the like as well as in electric kettles and pots. The water heating device is provided with a steam passage for discharging the water vapor generated as the water is heated to the outside of the device. And, in order to prevent hot and cold water from flowing out from the steam passage when the device falls over, an overturn water stop valve for closing the steam passage is also provided.

  The electric kettle described in Patent Document 1 has two steam passages, and an overturn water stop valve provided in each steam passage. The overturn water stop valve has a triangular frustum-shaped cone and a cone storage space. And in the normal state where the electric kettle is not overturned, the cone is located at the lower part of the cone storage space to allow the flow of steam. When the electric kettle falls over, the action of gravity moves the cone to the upper part of the cone storage space to close the steam passage, thereby preventing the outflow of hot and cold water through the steam passage.

  When it falls and the steam passage is closed, the inside of the electric kettle is sealed and the internal pressure rises. Then, when the electric kettle is returned to the normal posture (normal state), the cone is kept pressed to the upper part of the cone storage space by the increased internal pressure for a while. Here, the two steam passages have different inner diameters, and first, a cone of the steam passage having a small inner diameter drops by its own weight, and the steam passage is opened. As a result, the rise in internal pressure of the electric kettle is eliminated, and the cone of the steam passage having the larger inner diameter also falls and returns to the lower part of the pyramid storage space. That is, the overturn water stop valve of the electric kettle of Patent Document 1 solves the problem that the steam passage continues to close due to the rise of the internal pressure by the drop of the valve body itself while preventing the outflow of hot and cold water by moving the cone. It is a thing.

JP, 2010-69016, A

  In the above-mentioned electric kettle, the internal pressure of the electric kettle can not be eliminated until the cone drops in the steam passage with a small inner diameter. That is, it takes a certain amount of time to eliminate the internal pressure of the electric kettle. There is room for improvement in this regard.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a water heating device capable of quickly and reliably eliminating the rise in internal pressure and additionally suppressing the outflow of hot and cold water.

  The characteristic configuration of the water heating device for achieving the above object is a water heating device having a water heating unit, a storage container, a plurality of steam passages, and a plurality of water shut off valves, and the water heating unit is Heating the water to generate hot water, the storage container stores the hot water generated by the water heating unit, and the steam passage communicates the inside of the storage container with the outside of the water heating device The water stop valve is provided in each of the plurality of steam passages, and discharges steam from the inside of the storage container to the outside of the water heating device in an open state, while the inside of the storage container in a closed state And the outflow of hot water to the outside of the water heating device, and in the overturned state where the water heating device is in the overturned state, at least one of the water shutoff valves discharges the vapor; It is in the point that has become.

  According to the above feature configuration, the plurality of water shut off valves are provided in each of the plurality of steam passages, and in the open state, the steam is discharged from the inside of the storage container to the outside of the water heating device while in the closed state Discharge of steam from the inside of the storage container to the outside of the water heating device and outflow of hot water are suppressed, and in the overturned state where the water heating device is turned over, at least one of the water shut off valves discharges steam As a result, steam can be discharged from the storage container in the overturned state, and there is no possibility that the internal pressure will rise, so that the rise in internal pressure can be reliably eliminated. Further, depending on the structure of the water heating device, even if the internal pressure of the storage container may rise at the time of overturning or immediately after overturning, steam can be discharged from the water shutoff valve, so that the increase in internal pressure can be eliminated quickly. it can.

  Another characteristic configuration of the water heating device according to the present invention is that the water stop valve at the highest position of the water stop valves is opened in the overturned state.

  When the water heating device falls over, the hot and cold water in the storage container gathers at a low position by gravity. For this reason, according to the above-described characteristic configuration, the water shut-off valve at the highest position of the water shut-off valves is in the open state, so that the steam can be reliably discharged from the water shut-off valve in the open state.

  Another characteristic configuration of the water heating device according to the present invention has a flat side surface which is a flat side surface, and when the water heating device takes a posture in which the flat side surface is vertically downward in the overturned state. In the water stop valve, the water stop valve farthest from the flat side surface is in an open state.

  When the water heating device takes a posture in which the flat side faces vertically downward in the overturned state, the hot and cold water in the storage container is gathered at a low position, that is, the flat side by gravity. According to the above-mentioned characteristic configuration, since the water stop valve farthest from the flat side surface in the water stop valve is in the open state, the steam can be reliably discharged from the water stop valve in the open state.

  Another characteristic configuration of the water heating apparatus according to the present invention has a first side and a second side facing each other, and at least one of the water shutoff valves is closer to the first side than the second side. , And at least one of the other water shut off valves is disposed closer to the second side than the first side.

  According to the above feature configuration, at least one of the water shut off valves is disposed at a position closer to the first side than the second side, and at least one of the other water shut off valves is more than the first side. Since it is disposed at a position close to the second side surface, the water shut-off valve at a position close to the surface opposite to the lower side surface in the fall state where the first side surface or the second side surface is the lower side in the vertical direction. It is possible to quickly and reliably eliminate the rise in internal pressure by opening the valve, and to suppress the outflow of hot and cold water by closing the shutoff valve at a position close to the lower surface.

  Another characteristic configuration of the water heating device according to the present invention is that the water stop valve, which is open in the overturned state, is located above the central position of the storage container in the vertical direction.

  According to the above-mentioned feature configuration, since the water shut off valve which is open in the overturned state is located above the central position of the storage container in the vertical direction, the outflow of hot and cold water from the water shut off valve in the closed state is suppressed. While, it is possible to discharge the steam more reliably.

Another feature of the water heating device according to the present invention is that the water stop valve has a valve body and a valve seat, and the valve body is disposed movably according to the direction of the acting gravity and is open. In the state, the valve body and the valve seat are separated to allow discharge of steam from the inside of the storage container to the outside of the water heating device, and in the closed state, the valve body is fitted with the valve seat Suppressing the outflow of steam and hot water from the inside of the storage container to the outside of the water heating device;
In the water shut-off valve in the open state in the overturned state, the valve seat is positioned above the valve body in the vertical direction, and in the water shut-off valve in the closed state in the overturned state, the valve body in the vertical direction At the point where the valve seat is located on the lower side.

  According to the above configuration, the water shut off valve has a valve body and a valve seat, and the valve body is disposed movably according to the direction of the acting gravity, so the valve body is in the water heating state of the overturned state It moves in various directions according to the attitude of the device. In the water stop valve which is open in the overturned state, since the valve seat is located on the upper side of the valve body in the vertical direction, the valve body and the valve seat are separated by the action of gravity to allow the discharge of steam. In the water stop valve which is closed in the overturned state, since the valve seat is located below the valve body in the vertical direction, the valve body is engaged with the valve seat by the action of gravity to suppress the outflow of hot water. Therefore, the rise of the internal pressure can be eliminated more quickly and surely, and the outflow of the hot and cold water can be surely suppressed.

  Another characteristic configuration of the water heating device according to the present invention is that the water heating device has a substantially rectangular parallelepiped shape, and a first vertex which is one vertex of a quadrilateral shape of the water heating device viewed from above, and the first vertex At least one of the water shut off valves is disposed in the vicinity of the first vertex, and at least one of the other water shut off valves is disposed in the vicinity of the second vertex, The point is.

  According to the above characteristic configuration, since the water heating device has a substantially rectangular parallelepiped shape, there is a high possibility that one of the four substantially rectangular parallelepiped side surfaces is in the vertical direction in the fall state. Then, at least one of the water shutoff valves is disposed in the vicinity of the first vertex, and at least one of the other water shutoff valves is disposed in the vicinity of the second vertex. Here, in the fall state, one of the first vertex and the second vertex is located at the upper end of the water heating device in the vertical direction, and the other is located at the lower end of the water heating device in the vertical direction. become. Therefore, at least one of the shutoff valves is located at the upper end in the vertical direction of the water heating device, and at least one of the shutoff valves is located at the lower end in the vertical direction of the water heating device. Therefore, the upper water shutoff valve is opened and the lower water shutoff valve is closed, thereby more reliably discharging steam while suppressing the outflow of hot and cold water from the closed water shutoff valve. Can.

Cross-sectional view showing an outline of a tea beverage production apparatus Flow chart showing the operation of tea beverage production Cross-sectional view showing the structure of a tea beverage production apparatus An exploded perspective view showing the configuration of the extraction unit and the server An exploded perspective view showing the arrangement and structure of the water shut off valve Perspective view showing the structure of the valve base Schematic showing the posture of the water heating device in the overturned state and the state of the water shutoff valve Schematic showing the posture of the water heating device in the overturned state and the state of the water shutoff valve Schematic showing the posture of the water heating device in the overturned state and the state of the water shutoff valve Schematic showing the posture of the water heating device in the overturned state and the state of the water shutoff valve Schematic showing the posture of the water heating device in the overturned state and the state of the water shutoff valve Schematic showing the posture of the water heating device in the overturned state and the state of the water shutoff valve

  Hereinafter, the tea beverage production device 100 (an example of a device provided with a water heating device) according to the present embodiment will be described based on the drawings. The outline of the device 100 is as follows. That is, as shown in FIG. 1, the tea beverage production device 100 is generally in the shape of a rectangular parallelepiped as a whole, and the extraction unit 30 and the server 40 are attached to one surface thereof in a form in which each half is embedded. In the following description, the side on which the extraction unit 30 and the server 40 are disposed with respect to the main body 50 is referred to as the front side, and the side on which the water tank 11 is disposed is referred to as the rear side. The side on which the operation panel 51 is disposed is referred to as the upper side, and the side on which the server 40 is disposed is referred to as the lower side. The right side is referred to as the right side and the left side is referred to as the left side toward the front surface of the main body 50. The directions from the center of the tea beverage production apparatus 100 toward the front side, the rear side, the upper side, the lower side, the right side and the left side may be referred to as the front direction, the rear direction, the upper direction, the lower direction, the right direction and the left direction. The tea beverage production apparatus 100 is used by being placed on a table or the like in a posture in which the upward and downward directions coincide with the direction of gravity (vertical direction).

  As shown in FIG. 2, the tea beverage production apparatus 100 has a water supply unit 10, a boiler unit 20, an extraction unit 30 and a server 40. The water supply unit 10 and the boiler unit 20 are disposed inside the main body 50. The extraction unit 30 and the server 40 are detachable with respect to the main body 50. The water supply unit 10 stores water and supplies the stored water to the boiler unit 20. The boiler unit 20 heats the supplied water to generate hot water at a predetermined temperature, and supplies the hot water to the extraction unit 30. The extraction unit 30 immerses the tea bowl container 32 containing tea leaves therein into the supplied hot water to produce a tea beverage, and supplies the tea beverage to the server 40. The server 40 stores the tea beverage supplied from the extraction unit 30. The tea beverage production apparatus 100 has an operation panel 51 as shown in FIG. The operation panel 51 is provided on the upper side of the main body 50, receives an operation from the user, and transmits the operation to a control unit (not shown). A control part controls operation of a motor, a heater, etc. based on operation from a user, and controls operation of tea drink producing device 100.

  And the tea beverage production | generation apparatus 100 has the drive mechanism A, as shown in FIG. The drive mechanism A includes a support rotary plate 33, a drive rotary plate 55, and a motor 56, and rotates the teapot container 32 around a rotation axis parallel to the vertical direction.

  Hereinafter, the tea beverage production apparatus 100 will be described in more detail with reference to FIGS. 2 to 4.

  The water supply unit 10 includes a water tank 11, a water purification filter 12, a water supply pipe 13, a pump 14, and a water supply pipe 15. The water tank 11 is disposed on the rear side of the main body 50. A clean water filter 12 is disposed below the water tank 11. Water that has been purified and flowed out through the water purification filter 12 is sent to the pump 14 through the water supply pipe 13 and is sent to the boiler tank 21 of the boiler unit 20 through the water supply pipe 15 by the pump 14.

  The boiler unit 20 includes a boiler tank 21, a hot water pipe 22, a heater 23 (water heating unit), a hot water pipe 24, a temperature sensor 25, a hot water supply valve 26, a hot water supply valve lever 27, and a boiler cover 28. The boiler tank 21 is disposed on the upper side of the main body 50. The upper side of the boiler tank 21 is covered with a boiler cover 28, and a storage container is formed by the boiler tank 21 and the boiler cover 28. The water supply pipe 15 of the water supply unit 10 is connected to the boiler cover 28, and water from the water supply pipe 15 is poured from the upper side of the boiler tank 21.

  A heater 23 is disposed below the boiler tank 21. The hot and cold water pipe 22 connects the lower side of the boiler tank 21 and the upstream side of the heater 23. The hot and cold water pipe 24 connects the downstream side of the heater 23 and the upper side of the boiler tank 21. When the heater 23 is energized by the control of the control unit, the water in the heater 23 is heated, the pressure rises, and the water is sent to the boiler tank 21 through the hot water pipe 22. Then, the water of the boiler tank 21 is sent to the heater 23 through the hot and cold water pipe 22. Thus, the water is heated by circulating through the boiler tank 21 and the heater 23. In addition, you may provide suitably the non-return valve which defines this circulation in one direction.

  A temperature sensor 25 is disposed inside the boiler tank 21. The temperature sensor 25 detects the temperature of water inside the boiler tank 21 and notifies the control unit of the temperature. The control unit monitors the output of the temperature sensor 25 and stops the energization of the heater 23 when the water inside the boiler tank 21 reaches a set temperature (for example, 90 ° C.). Thus, the water in the boiler tank 21 is heated to the set temperature.

  A hot water supply valve 26 is disposed below the boiler tank 21. The hot water supply valve 26 is biased downward by a spring to close the lower hole of the boiler tank 21. The hot water supply valve 26 is connected to the valve connection portion 27a of the hot water supply valve lever 27 and opens when the hot water supply valve lever 27 is swung up and pushed up. Then, the hot water in the boiler tank 21 is supplied to the extraction unit 30 through the inlet D. The inlet D is a port for pouring hot water from the boiler unit 20 to the extraction unit 30, and is disposed directly above the rotation axis of the tea bowl container 32 in the present embodiment.

  The hot water supply valve lever 27 is a lever-like member, and is attached to the main body 50 so as to be pivotable about a fulcrum 27b. A valve connection portion 27 a which is a front end of the hot water supply valve lever 27 is connected to the hot water supply valve 26. An operation end 27 c which is a rear end of the hot water supply valve lever 27 is connected to the connecting member 54. By the rotation of a motor 53 described later, the hot water supply valve lever 27 swings, and the hot water supply valve 26 is opened.

  The extraction unit 30 has an extraction container 31, a tea bowl container 32, a support rotary plate 33, a lid 34, a tea supply valve 35 and a tea supply control lever 36.

  The extraction container 31 is a cup-shaped container whose upper side is opened, and accommodates the teacup container 32 inside. The extraction container 31 has a storage space 31a, an inner wall portion 31b, a support portion 31d, and a supported portion 31e. The accommodation space 31 a is a cylindrical space formed inside the extraction container 31, and accommodates the hot water and the tea bowl container 32 supplied from the boiler unit 20 inside. The inner wall portion 31b is a wall-shaped portion, and thereby a housing space 31a is formed.

  The support portion 31 d is an annular portion formed to protrude outward from the inner wall portion 31 b and is a flange-like portion. The support portion 31 d is formed slightly below the upper end 31 c of the inner wall portion 31 b. The upper surface of the support portion 31 d is formed as a surface parallel to the horizontal surface. The support portion 31 d is formed all around the extraction container 31.

  The supported portion 31e is a rib-like or plate-like portion formed to protrude outward at the lower portion of the extraction container 31 (see FIG. 4). The supported portion 31 e is placed on the upper side of the support rail 57 of the main body 50 when the extraction unit 30 is attached to the main body 50. That is, by placing the supported portion 31 e on the upper side of the support rail 57, the extraction unit 30 is supported by the main body 50.

  The tea bowl container 32 is a bottomed cylindrical container opened at the upper side, and accommodates tea leaves therein. An inclined portion 32 b is formed on the bottom surface 32 a of the tea bowl container 32. In the present embodiment, the bottom surface 32a is formed in a conical shape with its apex directed downward, and the side surface of the cone corresponds to the inclined portion 32b. A plurality of openings are formed on the bottom surface 32a and the side surface 32c of the tea bowl container 32, and a mesh-like sheet (not shown) is attached to the openings. A plurality of engagement portions 32 d are formed on the side surface 32 c of the teaspoon container 32. The engagement portion 32d is a plate-like portion protruding outward from the side surface 32c. The engagement portion 32 d engages with the engagement portion 33 b of the support rotary plate 33 described later to fix the tea bowl container 32 to the support rotary plate 33.

  The support rotary plate 33 is a hollow disk-like member, and supports and rotates the tea bowl container 32. The support rotary plate 33 has gear teeth 33a, an engaged portion 33b, a supported portion 33c, and an annular recessed portion 33d. The gear teeth 33a are gears formed on the outer peripheral portion of the support rotary plate 33, and mesh with gear teeth 55a of a drive rotary plate 55 described later. The engaged portion 33 b is a notch formed on the state side without the support rotary plate 33, and engages with the engagement portion 32 d of the tea bowl container 32 to support the tea bowl container 32.

  The supported portion 33 c is an annular portion that protrudes downward at the outer peripheral portion of the support rotary plate 33, and is formed below and inside the gear teeth 33 a. The annular recessed portion 33 d is an annular groove-shaped portion formed on the lower surface of the support rotary plate 33 and is formed immediately inside the supported portion 33 c. The lid 34 is a disk-like member, and an opening 34a is formed at the center.

  The extraction container 31, the tea bowl container 32, the support rotary plate 33, and the lid 34 which were mentioned above are piled up in this order, as shown in FIG. 4, and the extraction part 30 is formed. That is, the tea bowl container 32 is attached to the support rotary plate 33, the support rotary plate 33 is placed on the upper side of the extraction container 31, and the lid 34 is placed on the support rotary plate 33.

  At the lower part of the extraction container 31, a tea supply valve 35 is disposed. The tea supply valve 35 is biased downward by a spring to close the lower hole of the extraction container 31. The tea feeding valve 35 opens when it is pushed up by a valve operation member of the server 40 described later. Then, the tea beverage in the extraction container 31 flows out and is supplied to the server 40.

  The tea feeding control lever 36 is a lever-like member, and is attached to the lower part of the extraction container 31 so as to be able to swing around the fulcrum 36b. An annular portion 36a which is an end portion on the front side of the tea control lever 36 is an annular portion opened at the top and the bottom. The tea supply valve 35 is located inside the ring part 36a in the state which does not contact with the ring part 36a. The annular portion 36 a is located above the valve operating member 41 of the server 40. An operation end 36 c, which is a rear end of the tea control lever 36, is in contact with the operation member 52. The tea feeding control lever 36 swings with the rotation of the operation member 52 by the motor 53, and the ring portion 36a moves up and down.

  The server 40 has a valve operating member 41, a server lid 42 and a server container 43. The valve operating member 41 is an umbrella-like member, and is disposed at the center of the server lid 42 so as to be movable in the vertical direction, and is biased upward by a spring. The server container 43 is a cup-shaped member. The server lid 42 is placed on the server container 43 as a lid of the server container 43. An opening 42 b is formed around the valve operating member 41 in the server lid 42. The tea beverage that has flowed out from the tea supply valve 35 of the extraction unit 30 flows along the valve operation member 41 to the upper side of the server lid 42 and flows into the server container 43 through the opening 42 b.

  When the extraction unit 30 and the server 40 are mounted on the main body 50, the tea supply valve 35 of the extraction unit 30 and the valve operation member 41 of the server 40 are vertically disposed with the central axes aligned. When the tea supply control lever 36 is positioned at the lower side, the valve operation member 41 of the server 40 is pushed downward by the tea supply control lever 36 and does not contact the tea supply valve 35 of the extraction unit 30. Therefore, the tea supply valve 35 is not opened but kept closed. Therefore, the tea beverage does not flow out of the extraction unit 30.

  In a state where the tea feeding control lever 36 is positioned on the upper side, the valve operating member 41 of the server 40 contacts the tea feeding valve 35 of the extraction unit 30 and pushes up the tea feeding valve 35. Then, the tea supply valve 35 is opened, and the tea beverage flows out from the extraction unit 30 and flows into the server 40.

  Even when the tea control lever 36 is positioned at the upper side, when the server 40 is removed from the main body 50, the tea valve 35 of the extraction unit 30 is not pushed up, so the tea valve 35 is opened. It is kept closed. Therefore, at this time, the tea beverage does not flow out of the extraction unit 30. The same applies to the case where the tea feeding control lever 36 is located on the lower side.

  The drive rotary plate 55 and the motor 56 are disposed in the main body 50 (see FIG. 2). The driving rotary plate 55 is a gear having gear teeth on the outer peripheral portion, and is rotationally driven by a motor 56 around a rotation axis. When the extraction unit 30 is attached to the main body 50, the gear teeth of the drive rotary plate 55 mesh with the gear teeth 33a of the support rotary plate 33, and the rotation of the drive rotary plate 55 is transmitted to the support rotary plate 33. Thus, the support rotary plate 33 rotates.

  Next, along with the flow chart of FIG. 2, the operation of tea beverage production in the tea beverage production device 100 will be described. First, water is supplied to the water tank 11, tea leaves are accommodated inside the tea bowl container 32, and the extraction unit 30 and the server 40 are attached to the main body 50. At this time, the annular portion 36a of the tea control lever 36 is located on the lower side, and the valve operating member 41 of the server 40 is pushed downward by the tea control lever 36.

  From the operation panel 51, the type of tea leaf and the desired concentration and taste are input, the course of tea beverage production is selected, and tea beverage production is instructed. Then, the pump 14 is first driven, and the water of the water tank 11 is sent to the boiler tank 21 through the water purification filter 12, the water supply pipe 13, the pump 14 and the water supply pipe 15. The control unit monitors the drive current of the pump 14, and stops the pump 14 assuming that the water in the water tank 11 has run out when the amount of current falls below a predetermined value.

  Next, the control unit starts energization of the heater 23. Then, water is circulated and heated between the boiler tank 21 and the heater 23. The control unit monitors the output of the temperature sensor 25 and ends the energization of the heater 23 when the temperature of the hot water of the boiler tank 21 reaches a predetermined set temperature according to the selected course.

  Next, the control unit operates the motor 53 to move the operation member 52, the connection member 54, and the hot water supply valve lever 27 to open the hot water supply valve 26 for a predetermined time. Then, the hot water stored in the boiler tank 21 is poured into the tea bowl container 32 and the extraction container 31 of the extraction unit 30 through the inlet D and the opening 34 a of the lid 34.

  Thus, the hot water is stored in the storage space 31a of the extraction container 31, the tea leaves are immersed in the hot water, and a tea beverage is produced. At this time, the control unit operates the motor 56. Then, the drive rotary plate 55 and the support rotary plate 33 rotate, and the teapot container 32 rotates.

  After a predetermined time corresponding to the selected course has elapsed, the control unit stops the motor 56, operates the motor 53, moves the operation member 52 and the tea feeding control lever 36, and moves the annular portion 36a upward Let Then, the valve operating member 41 of the server 40 pushes up the tea supply valve 35 of the extraction unit 30 to open it, and the tea beverage flows out from the extraction unit 30 and is stored in the server 40.

  Next, the water shutoff valve H and the steam passage J will be described with reference to FIGS. 1, 3, 5 and 6. A front side steam port 71 and a rear side steam port 81 are provided on the upper side of the main body 50. A front water stop valve 72 is provided at a position corresponding to the front steam port 71 of the boiler cover 28, and a rear water stop valve 82 is provided at a position corresponding to the rear steam port 81 of the boiler cover 28. .

  The front water stop valve 72 includes a valve base 73, a valve cover 74, and a valve ball 75 (valve body K). The valve base 73 has a shape in which a wall 73a is provided upright on a substantially disc-like bottom plate (FIG. 6). A pair of rails 73b and a lower surface hole 73c are formed in the bottom plate inside the surrounding wall 73a. A side hole 73 d is formed on the side surface of the surrounding wall 73 a. The valve base 73 is disposed on the steam port 28 a formed in the boiler cover 28 such that the steam port 28 a and the lower surface hole 73 c vertically overlap.

  The valve body ball 75 is a ball having a diameter larger than the side surface 32c of the surrounding wall 73a. The valve body ball 75 is placed on the pair of rails 73b inside the surrounding wall 73a. The valve ball 75 is freely movable along the rail 73b.

  The valve cover 74 is a cylindrical member whose upper surface is closed, and an upper surface hole 74a is formed on the upper surface. The valve cover 74 is disposed on the upper side of the valve base 73. At this time, the valve cover 74 closes the upper side of the surrounding wall 73a and covers the periphery of the surrounding wall 73a. The upper surface hole 74a is located outside the surrounding wall 73a. Then, the steam of hot water stored in the boiler tank 21 passes through the steam port 28a of the boiler cover 28, the lower surface hole 73c of the valve base 73, the side surface hole 73d of the surrounding wall 73a, and the upper surface hole 74a of the valve cover 74 in this order. The air is discharged from the front side steam port 71 to the outside of the main body 50. That is, the front steam passage 76 is formed through the steam port 28a, the lower surface hole 73c, the side surface hole 73d, the upper surface hole 74a and the front steam port 71. The front steam passage 76 communicates the inside of the boiler tank 21 with the outside of the tea beverage producing apparatus 100.

  When the valve ball 75 moves to close the side hole 73d of the surrounding wall 73a, steam and hot water from the boiler tank 21 can not pass through the side hole 73d. That is, at this time, the front water stop valve 72 is closed. That is, the edge of the side hole 73 d functions as the valve seat 73 e of the front water stop valve 72.

  When the tea beverage production apparatus 100 is inclined or falls over, the valve ball 75 moves along the rail 73b by the action of gravity. Whether the valve ball 75 moves in a direction toward or away from the side hole 73 d depends on the orientation of the rail 73 b with respect to the tea beverage producing device 100 and the tilting / falling direction of the tea beverage producing device 100. Change. When the valve seat 73e is positioned above the valve body ball 75 in the vertical direction, the valve body ball 75 and the valve seat 73e are separated, and the front water shutoff valve 72 is in an open state. At this time, the steam from the boiler tank 21 can pass through the front steam passage 76. When the valve seat 73e is positioned below the valve body ball 75 in the vertical direction, the valve body ball 75 and the valve seat 73e come into contact with each other and fit, and the valve body ball 75 closes the side hole 73d. The valve 72 is closed. At this time, the hot and cold water from the boiler tank 21 can not pass through the front steam passage 76.

  The front water shut-off valve 72 and the rear water shut-off valve 82 have the same structure except that they have different directions. That is, the rear water shutoff valve 82 has a valve base 83, a valve cover 84, and a valve ball 85 (valve body K). The steam of hot water stored in the boiler tank 21 passes through the steam port of the boiler cover 28, the lower surface hole of the valve base 83, the side surface hole of the surrounding wall and the upper surface hole 84a of the valve cover 84 in this order, It is released from the body 81 to the outside of the main body 50. That is, the rear steam passage is formed through the steam port, the lower surface hole, the side surface hole, the upper surface hole 84 a and the rear steam port 81. The rear side steam passage communicates the inside of the boiler tank 21 with the outside of the tea beverage producing apparatus 100.

The front side water stop valve 72 is disposed on the front side and the left side of the tea beverage production device 100. The rail 73 b of the front water stop valve 72 is disposed along a direction deviated 45 ° from the front-rear direction. The side hole 73d (valve seat 73e) is disposed outside the rail 73b.
The rear water shutoff valve 82 is disposed on the rear side and the right side of the tea beverage production device 100. The rails of the rear water shut off valve 82 are disposed along a direction that is deviated 45 degrees from the front-rear direction. The side hole (valve seat 83e) of the rear water shutoff valve 82 is disposed on the outside as viewed from the rail.

  The arrangement of the front water shutoff valve 72 and the rear water shutoff valve 82 and the state of the water shutoff valve H in the overturned state will be described with reference to FIGS. 7 to 10. 7 to 10 schematically show a state viewed from the upper side of the tea beverage production device 100 when the tea beverage production device 100 falls over. Here, the tea beverage production device 100 of the present embodiment is configured as a substantially rectangular parallelepiped as a whole. In this case, a posture in which the right side surface (first side surface S1: flat side surface) is vertically downward as the assumed toppled state (FIG. 7, right-side inversion state), and the rear surface is vertically downward Posture (Fig. 8, the rear overturned state), the left side (second side S2: flat side) in the vertical direction down (Fig. 9, left upside down), the front surface in the vertical direction down There are four of the postures (FIG. 10, front overturned).

  As shown in FIG. 7, the front side water stop valve 72 is arrange | positioned in the vicinity of 1st vertex T1 which is one vertex in the square shape which carried out the top view of the tea beverage production apparatus 100. As shown in FIG. The rear water shutoff valve 82 is disposed in the vicinity of a second vertex T2 located diagonally to the first vertex T1. Here, assuming that a plane located equidistant from the first side surface S1 (right side surface) and the second side surface S2 (left side surface) is the center plane P, the rear water shutoff valve 82 has the first side surface S1 and the center plane It is arranged between P and. That is, the rear water shutoff valve 82 is disposed at a position closer to the first side surface S1 than the second side surface S2. The front water shutoff valve 72 is disposed between the second side surface S2 and the central plane P. That is, the front water shutoff valve 72 is disposed at a position closer to the second side surface S2 than the first side surface S1. In addition, since the tea beverage production | generation apparatus 100 is a rectangular parallelepiped shape, 1st side S1, 2nd side S2, and center surface P are mutually parallel. Further, in the present embodiment, each of the first side surface S1 and the second side surface S2 is formed flat (flat side surface).

  In the right overturned state shown in FIG. 7, the valve body ball 75 of the front water shutoff valve 72 moves downward in the vertical direction to be separated from the valve seat 73e, and the front water shutoff valve 72 is in the open state. The valve body ball 85 of the rear side water stop valve 82 moves downward in the vertical direction and is engaged with the valve seat 83e, and the rear side water stop valve 82 is in a closed state. The front side water shut off valve 72 in the open state is located on the upper side with respect to the vertical direction with respect to the rear side water shut off valve 82 in the closed state, and is the water shut off valve H at the highest position among the water shut off valves H. is there. Moreover, the front side water stop valve 72 which is an open state is located above the center position M of the boiler tank 21 (storage container) regarding the perpendicular direction. Further, in the right overturned state, the first side surface S1 which is the flat side surface is in the vertical direction lower side, and the front water shutoff valve 72 which is the water shutoff valve farthest from the first side surface S1 is opened. . In the right-side overturned state in which the above-described state occurs, the internal pressure rise of the boiler tank 21 is eliminated by discharging the steam through the open front side shutoff valve 72, and the hot water from the closed rear side shutoff valve 82 Outflow is controlled.

  In the rear overturned state shown in FIG. 8, the valve body ball 75 of the front water shutoff valve 72 moves downward in the vertical direction to be separated from the valve seat 73e, and the front water shutoff valve 72 is in the open state. The valve body ball 85 of the rear side water stop valve 82 moves downward in the vertical direction and is engaged with the valve seat 83e, and the rear side water stop valve 82 is in a closed state. The front side water shut off valve 72 in the open state is located on the upper side with respect to the vertical direction with respect to the rear side water shut off valve 82 in the closed state, and is the water shut off valve H at the highest position among the water shut off valves H. is there. Moreover, the front side water stop valve 72 which is an open state is located above the center position M of the boiler tank 21 (storage container) regarding the perpendicular direction. In the rear overturned state where the above-mentioned state is reached, the internal pressure rise of the boiler tank 21 is eliminated by discharging the steam through the open front side water shut-off valve 72, and the rear side water shut off valve 82 is closed. The outflow of hot water is suppressed.

  In the left overturned state shown in FIG. 9, the valve body ball 75 of the front water shutoff valve 72 moves downward in the vertical direction and is engaged with the valve seat 73e, and the front water shutoff valve 72 is closed. The valve body ball 85 of the rear side water stop valve 82 moves downward in the vertical direction and is separated from the valve seat 83e, and the rear side water stop valve 82 is in an open state. The rear side water shut off valve 82 in the open state is located on the upper side with respect to the vertical direction with respect to the front side water shut off valve 72 in the closed state, and is the water shut off valve at the highest position among the water shut off valves H. is there. Further, the rear water shutoff valve 82 in the open state is located above the central position M of the boiler tank 21 (storage container) in the vertical direction. Further, in the left overturned state, the second side surface S2 which is the flat side surface is in the vertical direction lower side, and the rear water shutoff valve 82 which is the water shutoff valve farthest from the second side surface S2 is opened. There is. In the left-side overturned state in which the above-described state occurs, the internal pressure rise of the boiler tank 21 is eliminated by discharging the steam through the rear side shutoff valve 82 in the open state, and hot water from the front shutoff valve 72 in the closed state. Outflow is controlled.

  In the front overturned state shown in FIG. 10, the valve body ball 75 of the front water shutoff valve 72 moves downward in the vertical direction and is engaged with the valve seat 73e, and the front water shutoff valve 72 is closed. The valve body ball 85 of the rear side water stop valve 82 moves downward in the vertical direction and is separated from the valve seat 83e, and the rear side water stop valve 82 is in an open state. The rear side water shut off valve 82 in the open state is located on the upper side with respect to the vertical direction with respect to the front side water shut off valve 72 in the closed state, and is the water shut off valve at the highest position among the water shut off valves H. is there. Further, the rear water shutoff valve 82 in the open state is located above the central position M of the boiler tank 21 (storage container) in the vertical direction. In the front overturned state which becomes the state described above, the internal pressure rise of the boiler tank 21 is eliminated by discharging the steam through the back side shutoff valve 82 which is open state, and the hot water from the front shutoff valve 72 which is closed state Outflow is controlled.

  In addition, in the above-mentioned tea beverage production apparatus 100, the open state and the closed state of the water shutoff valve H are switched according to the posture when falling. Then, the water shutoff valve H at a position where there is a high possibility that hot and cold water will flow out is closed. For example, the water shutoff valve H located at a relatively low position at the time of falling falls in a closed state. In addition, the water shutoff valve H at a position where the possibility of hot water outflow is low is in the closed state. For example, the water shutoff valve H located at a relatively high position at the time of falling falls in a closed state. By configuring the tea beverage producing apparatus 100 in this manner, the rise of the internal pressure of the boiler tank 21 is quickly and reliably eliminated by the water shutoff valve H in the open state, and the outflow of hot and cold water by the water shutoff valve H in the closed state. It is possible to suppress

Other Embodiments
(1) In the above-described embodiment, the tea beverage production device 100 is configured as a substantially rectangular parallelepiped, and has two water shutoff valves H. The shape of a hexagonal column as shown in FIG. 11 and FIG. 12 as the tea beverage production device 100 is also possible. The tea beverage producing apparatus 100 according to this embodiment has a first water shutoff valve 102, a second water shutoff valve 202 and a third water shutoff valve 302. These three water shut off valves H are arranged in the vicinity of every other apex with respect to the apex of a hexagon of the tea beverage production device 100 viewed from the top. In this case, as the assumed overturned state of the tea beverage producing apparatus 100, a posture in which one side surface (the first side surface S1) is turned downward in the vertical direction (FIG. 11, first overturned condition) and the first posture to the upper surface There are two postures (FIG. 12, second falling state) in a state of being rotated 60 ° clockwise as viewed. As shown in FIG. 11, assuming that a central plane P is a plane located equidistant from the first side surface S1 (flat side surface) described above and the second side surface S2 (flat side surface) parallel to the first side surface S1. The first water shutoff valve 102 is disposed between the first side surface S1 and the central plane P, and the second water shutoff valve 202 is disposed between the second side surface S2 and the central plane P. That is, the first water shutoff valve 102 is disposed at a position closer to the first side surface S1 than the second side surface S2, and the second water shutoff valve 202 is disposed at a position closer to the second side surface S2 than the first side surface S1. It is arranged.

  In the first overturned state shown in FIG. 11, the valve body ball 105 of the first water shutoff valve 102 moves downward in the vertical direction and is engaged with the valve seat 103e, and the first water shutoff valve 102 is closed. ing. The valve body ball 205 of the second water shutoff valve 202 moves vertically downward and is separated from the valve seat 203e, and the second water shutoff valve 202 is in an open state. The valve body ball 305 of the third water stop valve 302 moves downward in the vertical direction and is engaged with the valve seat 303 e, and the third water stop valve 302 is in a closed state. The second water shutoff valve 202 in the open state is located on the upper side in the vertical direction with respect to the first water shutoff valve 102 and the third water shutoff valve 302 in the closed state. The second water shutoff valve 202 located at the highest position among the three water shutoff valves H is in the open state. Further, the second water shutoff valve 202 in the open state is located above the central position M of the boiler tank 21 (storage container) in the vertical direction. Further, in the first overturned state, the first side surface S1 which is the flat side surface is in the vertical direction lower side, and the first water shutoff valve 102 which is the water stop valve farthest from the first side surface S1 is opened. ing. In the first overturned state in which the above-described state occurs, the internal pressure increase of the boiler tank 21 is eliminated by discharging the steam through the second shutoff valve 202 in the open state, and the first shutoff valve 102 in the closed state and The outflow of hot and cold water from the third shutoff valve 302 is suppressed.

  In the second overturned state shown in FIG. 12, the valve body ball 105 of the first water shutoff valve 102 moves downward in the vertical direction and is separated from the valve seat 103e, and the first water shutoff valve 102 is opened. There is. The valve body ball 205 of the second water shutoff valve 202 moves vertically downward and is separated from the valve seat 203e, and the second water shutoff valve 202 is in an open state. The valve body ball 305 of the third water stop valve 302 moves downward in the vertical direction and is engaged with the valve seat 303 e, and the third water stop valve 302 is in a closed state. The first shutoff valve 102 and the second shutoff valve 202 in the open state are located on the upper side in the vertical direction with respect to the third shutoff valve 302 in the closed state. The second water shutoff valve 202 located at the highest position among the three water shutoff valves H is in the open state. Further, the second water shutoff valve 202 in the open state is located above the central position M of the boiler tank 21 (storage container) in the vertical direction. In the second overturned state in which the above-described state is achieved, the internal pressure rise of the boiler tank 21 is eliminated by discharging the steam through the first shutoff valve 102 and the second shutoff valve 202 which are in the open state. The outflow of hot and cold water from the third shutoff valve 302 is suppressed.

(2) As a shape of the tea drink production | generation apparatus 100, other shapes besides the shape of the above-mentioned rectangular parallelepiped and a hexagonal column are also possible. For example, a triangular prism, a pentagonal prism, an octagonal prism, etc. are also possible, and an asymmetrical shape is also possible. Also, rounded corners are possible. In addition, it is also possible that the side surfaces facing each other of the tea beverage producing apparatus 100 are not parallel, that is, the above-described first side surface S1 and the second side surface S2 are not parallel but merely facing each other. The number of shutoff valves H may be four or more.

  The configurations disclosed in the above embodiments can be applied in combination with the configurations disclosed in the other embodiments as long as no contradiction arises, and the embodiments disclosed herein are exemplifications. That is, the embodiment of the present invention is not limited to this, and can be suitably modified without departing from the object of the present invention.

21: boiler tank (storage container), 23: heater (water heating unit), 28: boiler cover (storage container), 100: tea beverage production device (water heating device), H: water stop valve, J: steam passage, K: valve body, L: valve seat, M: central position, S1: first side (flat side), S2: second side (flat side), T1: first apex, T2: second apex

Claims (1)

A water heating apparatus comprising a water heating unit, a storage container, a plurality of steam passages, and a plurality of water stop valves,
The water heating unit heats the water to generate hot water,
The storage container stores the hot water generated by the water heating unit,
The steam passage communicates the inside of the storage container with the outside of the water heating device,
The water stop valve is provided in each of the plurality of steam passages, and discharges steam from the inside of the storage container to the outside of the water heating device in an open state, while from the inside of the storage container in a closed state Suppressing the discharge of steam to the outside of the water heating device and the outflow of hot water,
In the overturned state in which the water heating device is in the overturned state, at least one of the water stop valves is in the open state for discharging the vapor ;
The water heating device has a substantially rectangular parallelepiped shape, and the water shutoff is performed with respect to a first vertex which is one vertex in a square shape of the water heating device viewed from above and a second vertex located diagonally of the first vertex A water heating device, wherein at least one of the valves is arranged in the vicinity of the first apex and at least one of the other stop valves is arranged in the vicinity of the second apex .

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