JP5077631B2 - Hot water tank equipment for local cleaning equipment - Google Patents

Description

  The present invention relates to a hot water tank apparatus for a local cleaning apparatus.

There has been provided an apparatus for cleaning a local part of a human body with warm water. This device is equipped with a hot water tank device with a water storage chamber for storing hot water. As a hot water tank device, a tank body having a water storage chamber having an opening on the lateral side, a tank having a closing lid for closing the water storage chamber opening, a heater for heating the water in the water storage chamber to warm water, and the water storage chamber A hot water supply part that discharges hot water toward the local cleaning part and a water supply part that supplies water to the water storage chamber are known (Patent Document 1). According to this, the heater, the hot water supply part, and the water supply part are attached to the closing lid which closes the opening of the water storage chamber of the tank body. Furthermore, the tank body has a double structure having a vacuum heat insulating layer, and has an excellent heat retention effect.
JP 2001-336201 A

  According to the technique which concerns on patent document 1, the heater, the hot water supply part, and the water supply part are attached to the closing lid which closes the opening of the water storage chamber of a tank main body. For this reason, both a water supply position for supplying cold water to the water storage chamber and a hot water discharge position for supplying hot water in the water storage chamber to the local washing section are arranged on the closing lid and arranged on the same side. Therefore, the cold water supplied to the water storage chamber is easily mixed with the hot water near the hot water outlet of the water storage chamber. In this case, there is a possibility that a sufficient warm water sustaining effect cannot be obtained.

  The present invention has been made in view of the above-described circumstances, and cold water supplied to the water storage chamber is prevented from being immediately mixed with hot water in the vicinity of the hot water discharge portion of the water storage chamber, and the sustained effect of the hot water discharged from the hot water discharge portion. It is an object of the present invention to provide a hot water tank device for a local cleaning device that is advantageous for increasing the temperature.

(1) A hot water tank apparatus for a local cleaning apparatus according to aspect 1 includes (i) a tank having an opening and a tank body having a water storage chamber for storing water, and a closing lid for closing the opening of the water storage chamber of the tank body. And (ii) a heater provided in the tank for heating the water in the water storage chamber to warm water, and (iii) a hot water outlet facing the water storage chamber provided in the closing lid, from the hot water outlet to the local washing section In a hot water tank apparatus for a local cleaning apparatus, comprising a hot water discharge section for discharging, and (iv) a water supply section for supplying water to a water storage chamber provided in a closing lid,
(V) The water supply unit has a water supply passage extending from the closed portion toward the wall portion of the tank body facing the closure lid, and a water supply port formed at the tip of the water supply passage and facing the water storage chamber, (Vi) In the figure in which the tank is cut along the height direction, the water supply port of the water supply unit is disposed diagonally with respect to the hot water discharge unit in the water storage chamber and below the hot water discharge port of the hot water supply unit,
In the figure where the tank is cut along the height direction, the tank is arranged in an inclined state so that the center line extending along the horizontal direction of the water storage chamber of the tank is inclined with respect to the virtual horizontal line. It is facing the bottom wall of the inclined tank ,
A drain passage for discharging the water in the reservoir is provided;
The drain passage is provided with a drain suction port that faces the water storage chamber and is provided at the same height as the water supply port,
A drainage unit that can be opened and closed to drain water from the drain suction port;
Upon opening the drain portion, suction water accumulated at the bottom of the tank and the inclined state from the drain inlet, characterized that you effluent outside the tank by siphon principle.

  In this case, since the water supply port of the water supply unit faces the water storage chamber, cold water is supplied from the water supply port of the water supply unit to the water storage chamber. The water stored in the tank is heated by the heater to become hot water. The hot water in the water storage chamber is discharged from the hot water outlet facing the water storage chamber toward the local cleaning section, and is used for local cleaning of the human body. Therefore, of the hot water stored in the water storage chamber, the hot water on the side of the hot water outlet of the hot water outlet is preferentially supplied to the local washing section.

According to the hot water tank apparatus for a local cleaning apparatus according to aspect 1, the center line extending along the lateral direction of the water storage chamber of the tank is inclined with respect to the virtual horizontal line in the drawing in which the tank is cut along the height direction. Thus, the tank is disposed in an inclined state, and the water supply port faces the bottom wall of the inclined tank while approaching. Moreover, it has an effect as described in (3) mentioned later. Further, when water is accumulated in the water storage chamber 21 of the tank 2, the water is also launched into the drain passage, and the water pressure at the drain suction port acts on the water storage chamber 21. Therefore, if the drainage part which can drain the water from the drain suction port is opened, the water accumulated in the lowermost part of the inclined tank can be drained out of the tank from the drain suction port by the principle of siphon.

  In the figure which cut | disconnected the tank along the height direction, the water supply port of a water supply part is arrange | positioned diagonally with respect to the hot water outlet of a hot water supply part in a water storage chamber, and the downward direction of the hot water outlet of a hot water supply part. For this reason, when cold water is supplied from the water supply port of the water supply unit to the water storage chamber, the cold water is supplied to a position far from the hot water outlet of the hot water discharge unit in the water storage chamber. For this reason, warm hot water (preferentially supplied toward the local cleaning section) of the hot water outlet stored in the water storage room is mixed with cold water newly supplied from the water supply opening to the water storage room. Is suppressed. Therefore, it can contribute to increasing the hot water duration in which hot water is continuously discharged from the hot water outlet.

  (2) According to the hot water tank apparatus for a local cleaning device according to aspect 2, in the above aspect, the tank is in a horizontally long shape, and the water supply port is the center line of the water supply port or an extension line thereof and the bottom wall of the tank body It is characterized in that it is approaching while facing the bottom wall of the tank body so as to intersect. Since the tank has a horizontally long shape, an increase in size of the tank in the height direction can be suppressed. The water supply port is approaching while facing the bottom wall of the tank body so that the center line of the water supply port or an extension line thereof intersects the bottom wall of the tank body. For this reason, since the cold water supplied from the water supply port to the water storage chamber hits the bottom wall of the tank, the speed of the cold water is reduced. For this reason, it is suppressed that cold water flows in into a water storage chamber rapidly, and it is suppressed that cold water spreads to the whole water storage chamber at an early stage. Therefore, it is advantageous to maintain the temperature of warm hot water (supplied preferentially toward the local washing section) on the side of the hot water outlet stored in the water storage chamber. The approach distance that the water supply port approaches while facing the bottom wall of the tank body differs depending on the volume of the water storage chamber and the like, and is not particularly limited, but water supplied from the water supply port to the water storage chamber is not limited. Any distance that hits the bottom wall of the main body and can attenuate the speed of water is acceptable.

  (3) According to the hot water tank device for a local cleaning device according to aspect 3, in the above aspect, the drain passage for discharging the water in the water storage chamber is provided, and the drain passage has a drain suction port facing the water storage chamber. It is characterized by having. In this case, the water in the water storage chamber can be sucked from the drain suction port and discharged to the water discharge place through the drain passage. It is preferable that the drain suction port is also used as the water supply port of the water supply passage. The number of parts is reduced. For this reason, when the water supply port is approaching while facing the bottom wall of the tank body, the drain suction port is also approaching while facing the bottom wall of the tank body, and is close to the bottom wall of the tank body. Water can be drained.

  (4) According to the hot water tank device for a local cleaning device according to aspect 4, the closing lid is relatively upward and the drain suction port of the drain passage is relatively lower than the state before the tank is inclined. It is set to be located on the side. In this case, compared with the state before the inclination of the tank, the closing lid is located on the relatively upper side and the drain suction port of the drain passage is located on the relatively lower side. Since the drain suction port of the drain passage is located on the lower side in this way, it is advantageous for draining water near the bottom wall of the tank body, and it is advantageous for reducing the amount of water remaining in the water storage chamber during draining.

  In addition, the inclination causes the closing lid to be relatively upward and the drain suction port of the drain passage to be relatively lower, so that the water pressure acting on the drain suction port increases. Therefore, when draining the water of a water storage chamber via a drain channel | path using a water pressure, the suction property from a drain suction port can be improved and drain property can be improved.

  (5) According to the hot water tank apparatus for a local cleaning device according to aspect 5, the water supply passage is formed by a water supply pipe, the drain passage is formed by a drain pipe, and at least of the water supply pipe and the drain pipe One has a baffle-like or blade-like baffle plate member extending laterally along the one length direction. In this case, the baffle plate member further suppresses mixing of the cold water on the bottom wall side of the water storage chamber and the hot water in the upper portion of the water storage chamber (hot water near the hot water outlet). It is advantageous to increase the warm water sustaining effect.

  According to the present invention, in the figure in which the tank is cut along the height direction, the water supply port of the water supply unit is disposed diagonally with respect to the hot water outlet of the hot water discharge unit and below the hot water discharge port of the hot water discharge unit. Yes. For this reason, when cold water is supplied from the water supply port of the water supply unit to the water storage chamber, the cold water is supplied to a position far from the hot water outlet of the hot water discharge unit in the water storage chamber. For this reason, warm hot water (preferentially supplied toward the local washing section) of the hot water outlet stored in the water storage room and cold water newly supplied from the water supply outlet to the water storage room are immediately mixed. It is suppressed. Therefore, it can contribute to increasing the hot water duration in which hot water is continuously discharged from the hot water outlet.

  Furthermore, according to the present invention, in the drawing in which the tank is cut along the height direction, the tank is disposed in an inclined state so that the center line extending along the lateral direction of the reservoir of the tank is inclined with respect to the virtual horizontal line. The water supply port faces the bottom wall of the inclined tank while approaching it. For this reason, it is further suppressed that the cold water supplied to the water storage chamber is immediately mixed with the hot water near the hot water outlet of the water storage chamber. Therefore, it is advantageous in enhancing the hot water sustaining effect of the hot water tank device during the cleaning process for cleaning the local part.

(Embodiment 1)
An embodiment of the present invention will be described with reference to FIGS. A Western-style toilet is provided with a local cleaning device for cleaning a local part of a human body. The hot water tank device 1 is mounted on a local cleaning device. The hot water tank apparatus 1 includes a tank 2, a heater 3, a hot water supply unit 4, and a water supply unit 5.

  As shown in FIG. 1, the tank 2 has a horizontally long container shape having a water storage chamber 21 in which water is stored. The tank 2 includes a tank main body 22 having a peripheral wall 2525 including a water storage chamber 21 having an opening 20 opened laterally, and a closing lid 23 that closes the opening 20 of the water storage chamber 21 of the tank main body 22 in a sealed manner. Have. A wall portion of the tank body 22 opposite to the closing lid 23 and the opening 20 is a closing wall 24. The closing lid 23 has a fitting protrusion 23 r that fits into the opening 20 of the tank 2.

  As shown in FIG. 1, the tank body 22 includes an outer tank 2p, an inner tank 2i disposed in the outer tank 2p, and a heat insulating layer 28 interposed between the inner tank 2i and the outer tank 2p. The air in the heat insulation layer 28 is less than the atmosphere, and therefore the inside of the heat insulation layer 28 is in a reduced pressure state, and a higher degree of vacuum is preferable in order to improve the heat insulation. The heat insulation property of the warm water in the tank 2 is enhanced by the heat insulating layer 28, and the warm water retention effect is improved. The outer tank 2p is integrally formed and has an outer peripheral wall 25p and an outer closing wall 24p continuous with the outer peripheral wall 25p. The inner tank 2i is integrally formed and has an inner peripheral wall 25i facing the outer peripheral wall 25p and an inner closing wall 24i continuous with the inner peripheral wall 25i so as to face the outer closing wall 24p. The material of the outer tank 2p and the inner tank 2i is not particularly limited, and metal or hard resin is adopted. Examples of the metal include stainless steel and carbon steel.

  The heater 3 has a heater terminal 3 x and is provided in the tank 2. In particular, the heater 3 is attached to the closing lid 23 of the tank 2. The heater 3 heats the water in the water storage chamber 21 to make warm water. The heater 3 is disposed below the water storage chamber 21, and is disposed from the closing lid 23 toward the closing wall 24 along the bottom wall 2 x of the tank 2 while approaching the bottom wall 2 x of the tank 2. As shown in FIG. 1, the tip 3 e of the heater 3 approaches the closing wall 24 of the tank 2 through the gap space 54. Here, the heater 3 is disposed along the bottom wall 2x. In the water storage chamber 21, warm hot water moves upward due to the specific gravity difference, and cold water accumulates near the bottom wall 2x of the tank 2 due to the specific gravity difference. For this reason, it is for heating the water near the bottom wall 2x of the water storage chamber 21 of the tank 2 efficiently. Since the heater 3 is disposed so that the tip 3e of the heater 3 is inclined downward as it approaches the closing wall 24, it is advantageous for heating the water below the water storage chamber 21.

  In addition, if it is set as the full length L (refer FIG. 1) of the part inserted in the water storage chamber 21 among the heaters 3, the heat generating part 3f of the heater 3 will be from the front-end | tip part 3e of the heater 3 (5 / 6-1 / 2). The region has a length of about × L. This is for efficiently heating the water supply port 57 side to which cold water is supplied. However, the length of the heat generating portion 3f is not limited to the above value.

  The hot water outlet 4 is provided on the closing lid 23. The hot water outlet 4 has a hot water outlet 41 that faces the water storage chamber 21. The hot water outlet 41 discharges the hot water in the water storage chamber 21 toward the local cleaning unit 300 (cleaning nozzle). The hot water outlet 41 of the hot water outlet 4 is provided on the upper side of the closing lid 23, that is, on the upper side of the tank 2. This is because the inside of the water storage chamber 21 is warmer in the upper part than in the lower part, which is advantageous for discharging warm hot water from the hot water supply part 4 during the cleaning process.

  The water supply unit 5 is provided on the closing lid 23 so as to be positioned below the hot water supply unit 4, and supplies tap water to the water storage chamber 21 of the tank 2. In this specification, the water before being heated by the heater 3 is cold water. The water supply unit 5 includes a pipe-shaped (round pipe-shaped) water supply pipe 52 having a first water supply passage 51 extending from the closing lid 23 toward the closing wall 24 of the tank 2, and the closing wall 24 of the water supply pipe 52. And a water supply element 53 connected to the tip portion approaching the water. As shown in FIG. 1, the water supply element 53 is disposed in a gap space 54 located between the tip 3 e of the heater 3 and the closing wall 24. A base end portion 52 m of the water supply pipe 52 is connected to the water pipe side through the main valve 200.

  As shown in FIG. 3, the water supply element 53 is provided at a second water supply passage 55 extending in the vertical direction, a shielding wall portion 56 that closes an upper end of the second water supply passage 55, and a lower end portion of the water supply element 53. Further, the water supply port 57 having a substantially square opening shape and a through hole 53r are provided. Since the upper part of the second water supply passage 55 is closed by the shielding wall portion 56, the water in the second water supply passage 55 does not move directly above the shielding wall portion 56 of the water supply element 53. Thus, the cold water is prevented from being heated immediately above the water storage chamber 21 without being heated by the heater 3, which is advantageous for further increasing the hot water duration.

  As shown in FIG. 3, the second water supply passage 55 of the water supply element 53 communicates with the other end portion of the first water supply passage 51 through the through hole 53r. The water supply port 57 faces the vicinity of the bottom wall 2x of the water storage chamber 21 while approaching. The water supply element 53 has a thin box shape, and is arranged as close to the inner surface of the closing wall 24 as possible so as to form a gap L1 with respect to the closing wall 24 of the tank 2. For this reason, it is advantageous to keep the hot water outlet 41 of the hot water outlet 4 and the water supply element 53 as far away as possible. As shown in FIG. 1, the water supply pipe 52 and the water supply element 53 are L-shaped or substantially L-shaped, and the water is bent and flowed so as to reduce the speed of the water.

  FIG.1 and FIG.2 shows the figure which cut | disconnected the tank 2 along the height direction. As shown in FIG. 1, the water storage chamber 21 of the tank 2 has a center line PB extending in the lateral direction and oriented. If the center in the length direction of the center line PB of the tank 2 is PC (the center of the length and direction of the tank 2), the water supply port 57 of the water supply unit 5 It is arranged at a diagonal position with respect to the hot water outlet 41. That is, the water supply port 57 of the water supply unit 5 and the hot water outlet 41 of the hot water supply unit 4 sandwich the center PC of the water storage chamber 21 of the tank 2. Specifically, the hot water outlet 4 is provided in the vicinity of the upper portion of the closing lid 23 so as to be located above the center line PB of the tank 2. On the other hand, the water supply port 57 is provided in the vicinity of the lower end portion of the closing wall 24 facing the closing lid 23 in the tank 2 so as to be located below the center line PB of the tank 2. For this reason, the hot water outlet 41 from which the hot water in the water storage chamber 21 is discharged and the water supply port 57 through which cold water is supplied to the water storage chamber 21 can be separated as far as possible in the water storage chamber 21. it can. Therefore, the warm hot water on the side of the hot water outlet 41 of the hot water outlet 4 and the cold water supplied to the water storage chamber 21 from the water supply port 57 are prevented from being mixed immediately. Therefore, when washing the local part (the toilet part or the female part), it is advantageous to discharge warm hot water from the hot water outlet 41 of the hot water supply part 4 toward the local washing part 300 for as long as possible, and the hot water sustaining effect is improved. . Therefore, even when the time for local cleaning of the user becomes long, the comfort of cleaning is maintained.

  According to FIG. 1, the direction of the water supply passage 51 of the water supply pipe 52 and the direction of the second water supply passage 55 of the water supply element 53 are crossed at an angle θA. Therefore, it is advantageous for the water flowing through the water supply passage 51 to bend and decelerate so as to be bent in the second water supply passage 55 of the water supply element 53. Furthermore, if the flow passage cross-sectional area of the water supply passage 51 is S1, and the flow passage cross-sectional area of the second water supply passage 55 of the water supply element 53 is S2, S2 is larger than S1. For this reason, when the water flowing through the water supply passage 51 reaches the second water supply passage 55 of the water supply element 53, the flow passage cross-sectional area increases, so the speed of the water is reduced. Therefore, it is suppressed that cold water is rapidly ejected from the water supply port 57 to the water storage chamber 21. Therefore, the warm hot water on the side of the hot water supply section 4 and the cold water supplied to the water storage chamber 21 from the water supply port 57 are further suppressed from being mixed immediately. Therefore, it is suppressed that the temperature of the hot water by the side of the hot water supply part 4 falls, and also in this meaning, warm water duration time becomes long.

  Further, as shown in FIG. 3, the water supply port 57 is connected to the bottom wall 2x of the tank body 22 so that the extended line of the center line P1 of the water supply port 57 and the surface of the bottom wall 2x of the tank body 22 intersect at an angle θ2. Approaching while facing. In this case, the angle θ2 can be set in a range of approximately 70 to 120 degrees, particularly in a range of 85 to 95 degrees. For this reason, the cold water discharged from the water supply port 57 hits the bottom wall 2x of the tank body 22, and the speed of the cold water is reduced. Also in this sense, the warm hot water on the side of the hot water supply section 4 and the cold water supplied to the water storage chamber 21 from the water supply port 57 are further suppressed from being mixed immediately. The angle θ2 is not limited to the above value, and may be set to an acute angle or an obtuse angle.

  According to the present embodiment, as shown in FIG. 1, the tank 2 is arranged such that the center line PB of the water storage chamber 21 of the tank 2 is inclined at an angle θ1 with respect to the virtual horizontal line HA. As a result, the closing lid 23 is set relatively higher than before the inclination, and the lower end 24u of the closing wall 24 and the water supply port 57 are set relatively lower. Therefore, the hot water outlet 41 of the hot water supply section 4 and the water supply opening 57 of the water supply section 5 can be separated as far as possible. The warm hot water on the side of the hot water supply section 4 and the cold water supplied to the water storage chamber 21 from the water supply port 57 are further suppressed from being mixed immediately. Therefore, the hot water duration time is increased, which is more advantageous for discharging warm hot water from the hot water supply unit 4 to the local cleaning unit 300. Although the above-described angle θ1 can be selected as appropriate, it can be appropriately set within a range of about 3 to 40 degrees, for example, within a range of 5 to 35 degrees. Since the tank 2 is inclined, as shown in FIG. 1, the outer tank 2p, the inner tank 2i, the water supply passage 51, and the drain passage 60 described later are also imaginary horizontal line HA (perpendicular to the vertical line). Direction).

  Further, according to the present embodiment in which the tank 2 is inclined, the space WE above the water surface WD (see FIG. 1) of the hot water stored in the water storage chamber 21 as compared with the case where the inclination is not set. The advantage of reducing the volume of the is obtained. Therefore, the ineffective volume of the water storage chamber 21 can be reduced and the effective volume of the water storage chamber 21 can be increased. Also in this sense, the amount of hot water stored in the water storage chamber 21 can be increased, and in this sense, it is advantageous for increasing the hot water duration.

  In use, when the user operates a cleaning switch (not shown), the main valve 200 (water stopcock) connected to the water pipe or the like is opened. Then, cold water is automatically supplied toward the water storage chamber 21 through the water supply passage 51 of the water supply section 5 by the water pressure on the water pipe side. The cold water flows toward the closed wall 24, further changes its direction by an angle θA in the second water supply passage 55, and is supplied downward from the water supply port 57 toward the vicinity of the bottom wall 2 x of the water storage chamber 21. Then, the hot water in the vicinity of the hot water outlet 41 of the hot water outlet 4 in the water storage chamber 21 is automatically pushed out from the hot water outlet 41 toward the local washing part 300 to the extent equivalent to the amount of water newly supplied. Used for cleaning.

  Here, the cold water supplied from the water supply port 57 near the bottom wall 2x in the water storage chamber 21 is stored in the bottom wall 2x but is heated by the heat generating portion 3f of the heater 3 because it is close to the heater 3. The heated warm water gradually rises above the water storage chamber 21 due to the difference in specific gravity. According to the present embodiment, the hot water outlet 41 of the hot water outlet 4 and the hot water outlet 57 of the water feeder 5 are diagonally positioned in the water storage chamber 21 while maintaining the water inlet 57 below the hot water outlet 41 as described above. Is arranged. Therefore, since the hot water outlet 41 of the hot water outlet 4 is separated as far as possible from the water inlet 57, the cold water in the hot water inlet 57 and the hot water in the vicinity of the hot water outlet 41 of the hot water outlet 4 are prevented from being mixed immediately. Therefore, the temperature of the hot water near the hot water outlet 41 of the hot water outlet 4 is maintained as high as possible, which is advantageous for increasing the hot water duration.

  Now, the water in the water storage chamber 21 of the tank 2 may be drained for maintenance or cleaning. As described above, the outer tank 2p constituting the tank 2 has the outer peripheral wall 25p and the outer closing wall 24p. The inner tank 2i has an inner peripheral wall 25i and an inner closing wall 24i. As described above, the tank body 22 is a vacuum tank having a heat insulating structure having a double structure in which the other end side is a closing wall 24 (24i, 24p). For this reason, it is not preferable to form a drain suction port in the vicinity of the lower portion 24u of the closing wall 24 of the tank body 22 in order to ensure a satisfactory degree of vacuum of the vacuum heat insulating layer 28 over a long period of time.

  Therefore, in the present embodiment, as shown in FIG. 5, the drain member 6 for discharging the water in the water storage chamber 21 is attached using a closing lid 23 provided on the side opposite to the closing wall 24. . The drain member 6 has a drain pipe 61 having a drain passage 60. The drain pipe 61 extends in the tank 2 from the closing lid 23 toward the closing wall 24 so as to run in parallel with the water supply pipe 52 along the lateral direction. As shown in FIG. 5, one end portion 61 h of the drain pipe 61 is connected to the closing lid 23 similarly to the one end portion 52 h of the water supply pipe 52. The other end 61 k of the drain pipe 61 is connected to the water supply element 53 in the same manner as the other end 52 k of the water supply pipe 52. Therefore, the water supply passage 51 and the drain passage 60 communicate with the second water supply passage 55 of the water supply element 53 while running side by side. The water supply port 57 formed on the lower surface of the water supply element 53 also serves as the drain suction port 60u. That is, the water supply port 57 and the drain suction port 60u are shared. The drain suction port 60u faces the water storage chamber 21 and faces the bottom wall 2x of the tank 2 while approaching. Here, when water is stored in the water storage chamber 21 of the tank 2, the water also enters the drain passage 60. The water pressure in the water storage chamber 21 acts on the drain suction port 60u. Therefore, if the drainage portion 66 (see FIG. 5, drainage valve) connected to the base end portion 61m of the drain pipe 61 is opened, the water near the bottom wall 2x of the tank 2 in the water storage chamber 21 is drained by the siphon principle. The water is automatically sucked into the drain passage 60 from the port 60u, and the drain passage 60 flows in the direction of the arrow W2, so that most of the water in the water storage chamber 21 can be automatically discharged.

  According to the present embodiment, as described above, the tank 2 is arranged in an inclined state so that the center line PB extending and oriented in the lateral direction of the tank 2 is inclined at an angle θ1 with respect to the virtual horizontal line HA. As a result, the closing lid 23 is positioned on a relatively higher side than before the inclination, and the drain suction port 60u is positioned on a relatively lower side (substantially the lowest part of the tank 2). For this reason, water easily collects in the vicinity of the lowermost part of the water storage chamber 21, which is advantageous for sucking and draining water near the lowermost part of the bottom wall 2 x of the water storage chamber 21 from the drain suction port 60 u. As a result, there is an advantage that the amount of water remaining in the vicinity of the lowermost portion of the bottom wall 2x of the water storage chamber 21 of the tank 2 can be reduced as much as possible during the drain treatment.

  In addition, due to the above-described inclination, as described above, the closing lid 23 is relatively further on the upper side and the drain suction port 60u of the drain passage 60 is relatively on the lower side, so that the drain suction of the drain member 6 can be performed. The height position of the water surface WD with respect to the mouth 60u can be increased, and the water pressure acting on the drain suction port 60u can be increased. Therefore, when the water in the water storage chamber 21 is drained through the drain passage 60 using the water pressure in the water storage chamber 21, the water suction property from the drain suction port 60 u to the drain passage 60 can be improved, and the drain of the tank 2 can be improved. The advantage which can improve property is acquired.

  As shown in FIG. 2, the tip 3 e of the heater 3 is U-shaped and is the lowermost part of the heater 3. Since the water supply port 57 is disposed in the vicinity of the front end portion 3e of the heater 3, the cold water supplied from the water supply port 57 to the water storage chamber 21 can be effectively heated by the U-shaped front end portion 3e.

  As shown in FIG. 1, the water supply pipe 52 and the drain pipe 61 are located above the heater 3, but are located at a distance LB away from the heater 3 and above the heater 3. Accordingly, even when the amount of heat generated by the heater 3 is large, the water supply pipe 52 and the drain pipe 61 are not easily affected by the heat of the heater 3.

  Further, as shown in FIG. 2, the water supply pipe 52 and the drain pipe 61 are run in parallel in the water storage chamber 21 at substantially the same height and substantially in parallel. For this reason, the space of the water storage chamber 21 is divided into a first area KA where warm hot water on the side of the hot water outlet 41 of the hot water outlet section 4 is likely to exist, and a second area KB where water whose temperature is lower than that of the first area KA Is expected to function as a baffle plate member that is roughly classified.

  In addition, according to this embodiment, as shown in FIG. 4, the heater flange 90, the temperature sensor 91 (thermistor) which measures the temperature of the water of the water storage chamber 21, the temperature fuse 92, the safety switch 93 for overheating prevention, A vacuum breaker 94 for preventing backflow is provided on the closing lid 23 of the tank 2.

  In addition, since both the drain pipe 61 and the water supply pipe 52 are mutually running in parallel between the closing lid 23 and the water supply element 53, it is compared with the case of only one of the drain pipe 61 and the water supply pipe 52. And the effect which raises the support strength of the water supply element 53 can also be anticipated.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIG. The second embodiment basically has the same configuration and the same function and effect as the first embodiment. However, the water supply pipe 52 has a flange-shaped or blade-shaped first baffle plate member 7 a extending along the length direction of the water supply pipe 52. The first baffle plate member 7 a extends outward in the direction perpendicular to the axis of the water supply pipe 52. The drain pipe 61 has a flange-like or blade-like second baffle plate member 7 b that extends along the length direction of the drain pipe 61. The second baffle plate member 7b extends outward in the direction perpendicular to the axis of the water supply pipe 52 (in the directions of arrows K1 and K2). Thereby, the cold water on the bottom wall 2x side of the water storage chamber 21 and the hot water in the upper portion of the water storage chamber 21 (the hot water near the hot water outlet 41 of the hot water outlet section 4 are prevented from descending. Accordingly, the hot water duration during the cleaning process Since the first baffle plate member 7a and the second baffle plate member 7b do not completely partition the water storage chamber 21, the hot water heated by the heater 3 moves upward. The flow path is secured, and only one of the first baffle plate member 7a and the second baffle plate member 7b may be used.

(Other)
In the above-described embodiment, the water supply port 57 formed on the lower surface of the water supply element 53 also serves as the drain suction port 60u. However, the water supply port 57 and the drain suction port 60u are independent of each other. It may be provided. In the above-described embodiment, the tank 2 is inclined by the angle θ1 with respect to the virtual horizontal line HA. However, the present invention is not limited to this, and the tank 2 may be disposed horizontally or substantially horizontally along the virtual horizontal line HA. The tank 2 has a vacuum heat insulation double structure of the inner tank 2i and the outer tank 2p. However, a single layer structure may be used, or a triple structure of the inner tank, the intermediate tank and the outer tank may be used for further heat insulation. May be raised. It is not limited to the local cleaning device attached to the Western-style toilet, but may be a hot water tank device used for the local cleaning device attached to a portable toilet for nursing care or the like. The present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications within a range not departing from the gist. The following technical idea can also be grasped from the above description.

  (Additional Item 1) A tank body having an opening and a water storage chamber for storing water, a tank having a closing lid for closing the opening of the water storage chamber of the tank body, and water in the water storage chamber provided in the tank A heater for heating to warm water, a hot water outlet having a hot water outlet facing the water storage chamber provided in the closing lid, and discharging from the hot water outlet toward the local washing section, and (iv) provided in the closing lid In the hot water tank device for a local cleaning device, the water supply portion extends from the closure lid toward the wall portion of the tank body facing the closure lid. In the figure having a water supply passage provided and a water supply port formed at the tip of the water supply passage and facing the water storage chamber, the tank being cut along the height direction, the water supply port of the water supply unit is In the water reservoir Hot water tank and wherein the being and is arranged below the outflow position of the tapping portion at the diagonal positions with respect to the tap hole of the serial tapping portion. This hot water tank apparatus can be applied to other than the local cleaning apparatus.

  (Additional Item 2) A tank body having an opening and a water storage chamber for storing water, a tank having a closing lid for closing the opening of the water storage chamber of the tank body, and water in the water storage chamber provided in the tank A heater for heating to warm water, a hot water outlet having a hot water outlet facing the water storage chamber provided in the closing lid, and discharging from the hot water outlet toward the local washing section, and (iv) provided in the closing lid A hot water tank apparatus for a local cleaning apparatus, comprising a water supply section for supplying water to the water storage chamber.

    The present invention can be used for a local cleaning apparatus for cleaning a local part of a human body.

It is sectional drawing which concerns on Embodiment 1 and was cut | disconnected along the height direction of a hot water tank apparatus. It is a perspective view of the principal part cut along the height direction of a warm water tank device. It is an expanded sectional view near the water supply opening of a hot water tank device. It is a side view of a closure lid. It is sectional drawing along the VV line of FIG. FIG. 5 is a cross-sectional view taken along line VV in FIG. 1 according to the second embodiment.

  2 is a tank, 20 is an opening, 21 is a water storage chamber, 22 is a tank body, 23 is a closing lid, 3 is a heater, 4 is a hot water supply part, 5 is a water supply part, 51 is a water supply passage, 57 is a water supply port, and 60 is A drain passage is shown.

Claims (6)

(I) a tank body having an opening and a water storage chamber for storing water; a tank having a closing lid for closing the opening of the water storage chamber of the tank body; and (ii) water in the water storage chamber provided in the tank. (Iii) a hot water outlet that has a hot water outlet facing the water storage chamber provided on the closing lid and discharges from the hot water outlet toward the local cleaning section; and (iv) In a hot water tank apparatus for a local cleaning device, comprising a water supply section for supplying water to the water storage chamber provided in a closing lid,
(V) The water supply section is formed at a front end of the water supply passage that extends from the closure lid toward the wall portion of the tank body that faces the closure lid, and faces the water storage chamber. With a water inlet,
(Vi) In the figure which cut | disconnected the said tank along the height direction, the said water supply opening of the said water supply part is a diagonal position with respect to the said hot water outlet of the said hot water supply part in the said water storage chamber, and the said hot water supply part of the said hot water supply part It is located below the tap,
In the figure in which the tank is cut along the height direction, the tank is disposed in an inclined state such that a center line extending along a lateral direction of the water storage chamber of the tank is inclined with respect to a virtual horizontal line, The water supply port is opposed to the inclined bottom wall of the tank ,
A drain passage for discharging the water in the reservoir is provided;
The drain passage is provided with a drain suction port that faces the water storage chamber and is provided at the same height as the water supply port,
A drainage unit that can be opened and closed to drain water from the drain suction port;
Upon opening the drain portion, suction water accumulated at the bottom of the tank and the inclined state from the drain inlet, hot water tank apparatus for localized cleaning apparatus characterized that you effluent outside the tank by siphon principle .   2. The tank according to claim 1, wherein the tank has a horizontally long shape, and the water supply port is formed on the bottom wall of the tank body such that a center line of the water supply port or an extension line thereof intersects the bottom wall of the tank body. A hot water tank apparatus for a local cleaning apparatus, characterized by being approached while facing each other. In Claim 1 or 2 , it is set so that the closing lid may be located relatively on the upper side and the drain suction port of the drain passage may be located on the lower side compared to the state before the tank is inclined. A hot water tank device for a local cleaning device. The hot water tank apparatus for a local cleaning apparatus according to any one of claims 1 to 3 , wherein the tank body has a vacuum heat insulating layer. The water supply passage according to any one of claims 1 to 4 , wherein the water supply passage is formed of a water supply pipe, the drain passage is formed of a drain pipe, and at least one of the water supply pipe and the drain pipe. Has a baffle-like or blade-like baffle plate member extending laterally along the one length direction, and a hot water tank device for a local cleaning device. In any one of claims 1-5, wherein the heater as this of the tip approaches the wall portion facing the closure lid of the tank body, it is arranged to ramp down A hot water tank device for a local cleaning device.

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