JP5811561B2 - Human body local cleaning equipment - Google Patents

Description

  The present invention relates to a human body local cleaning device that generates hot water in a hot water tank and injects the hot water into the human body local part.

  A conventional human body local cleaning apparatus includes a cleaning nozzle (cleaning means) and a hot water storage tank (warm water tank), and water taken from the inlet at the lower part of the hot water tank spreads horizontally along the bottom of the hot water tank. Some rectifying units (rectifying means) are provided in the hot water tank that allow the water on the lower layer side of the hot water tank to push up the hot water on the upper layer side (see, for example, Patent Document 1).

  Also, in other human body local cleaning devices, in a hot water tank (hot water tank unit) that discharges the stored hot water to the outside, a tank body (hot water tank) that stores hot water and an electric heater disposed at the lower part of the hot water tank (Warm water heater) and a thermistor (temperature adjusting means) disposed in the upper part of the warm water tank, in order to push up part of the warm water without stirring and discharge it from the drain pipe (outlet) A water intake pipe (horizontal opening) having a water intake opening (horizontal opening) formed in a water intake pipe arranged at the bottom of one corner of the tank and a water intake opening toward the bottom of the hot water tank and the other side of the hot water tank on the lower side. There is one in which the rectifying means is arranged in the hot water tank unit (for example, see Patent Document 2).

JP 2002-294804 A JP-A-9-279661

  There is a demand from users or sellers for a human body local cleaning device including a hot water tank unit that can be used comfortably by extending the time (warm water duration) during which hot water of appropriate temperature is sprayed from the cleaning means to the human body local area. .

  However, in the rectifying means of Patent Document 1, water flows in from a box-like rectifying means installed at one corner of the bottom surface of the hot water tank in a direction parallel to the bottom surface of the hot water tank. As a result, the hot water accumulated in the upward direction of the rectifying means becomes a blind spot of the flow of water that has flowed into the hot water tank, and is prevented from being pushed out to the outlet even if the water has flowed in. However, there is a problem that it is difficult to be ejected from the cleaning means. In addition, since the direction in which water flows from the rectifying means into the hot water tank is one direction, it tends to pass through a short distance region between the water inlet and outlet formed on the inner surface of the hot water tank with the least resistance. A water flow path (flux) is easily formed. As a result, the hot water in the region other than the flux also stays in the same manner, and it is difficult for the hot water to be jetted from the cleaning means.

  In the rectifying means of Patent Document 2, the water inlet is provided in two directions along the tank bottom surface and the tank bottom surface. Thereby, the inflowing water is applied to the wall surface facing the inflow port, forms a flow along the bottom wall surface, and is pushed up toward the outflow port, but is not sufficiently decelerated because the water is reflected on the wall surface, A flux is easily formed.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a human body local cleaning device including a hot water tank having a rectifying means that can be used comfortably by extending the hot water duration.

The first problem-solving means of the present invention includes a hot water tank unit that is supplied with water from a water supply source and generates hot water, and a cleaning means that injects hot water generated by the hot water tank unit into a human body part. A hot water tank unit that stores water supplied from the water supply source, and forms a water inlet at a lower part and a hot water outlet at an upper part, and the hot water tank. A warm water heater for heating water flowing in from the inflow port, temperature adjusting means for adjusting the temperature of warm water heated in the warm water tank, and a lower portion in the warm water tank, Rectifying means for adjusting the speed and direction of water flowing into the tank, and the rectifying means has an upward opening and a horizontal opening, and the water flowing in from the inflow port , Open upward And the rectifying means, the wall of the hot water tank, and the hot water heater are arranged in a horizontal direction, and the hot water heater includes the rectifying means and the hot water tank. Between the two walls .

In the second problem-solving means of the present invention, the upward opening and the horizontal opening are each composed of a plurality of holes.
The third problem-solving means of the present invention has a configuration in which the total area of the horizontal opening is larger than the total area of the upward opening.

According to a fourth aspect of the present invention, the ratio of the opening area between the total area of the upper opening and the total area of the horizontal opening is from 1: 1.2 to 1: 4. .3.

The fifth problem solving means of the present invention is a configuration in which the rectifying means and the hot water heater are arranged so as not to overlap in the vertical direction .

  In the human body local cleaning device of the present invention, the flow rate of water flowing into the hot water tank from the inlet is reduced by the upward opening and the horizontal opening of the rectifying means, and the hot water is supplied from the upward and horizontal directions of the rectifying means. Water flows toward the lower part of the hot water layer generated in the tank. By causing water to flow in two directions, a blind spot in which hot water stays in both the upward and horizontal directions of the rectifying means is not formed, so that hot water in both dead angles can be pushed up and utilized without waste. Furthermore, by flowing in the two directions, the hot water is pushed toward the outlet of the hot water tank uniformly so as not to break the boundary between the upper and lower layers formed by the hot water and water, so that the dead angle where the hot water stays is It is difficult to form. As a result, the local body cleaning device can utilize the hot water in the hot water tank more efficiently than before, and maintain the boundary between the water and the hot water uniformly and in all directions in the upward and horizontal directions of the rectifying means. Thus, the hot water in the hot water tank can be pushed up toward the outlet of the hot water tank and sprayed from the cleaning means. Accordingly, the human body local cleaning device suppresses the retention of hot water in the hot water tank, and therefore, the time for injecting hot water of the appropriate temperature from the cleaning means to the human body local area becomes longer than before, so that the user can use it comfortably.

  Further, in the human body local cleaning device of the present invention, the upward opening and the horizontal opening of the rectifying means are each composed of a plurality of holes, so that the water to be pushed up is dispersed and the boundary between water and hot water is made more uniform. Can be pushed up. Thereby, formation of a flux and formation of the blind spot of the hot water which retains in areas other than a flux can be reduced further. Furthermore, it is possible to push the hot water in the hot water tank uniformly toward the outlet so as not to break the boundary between the upper and lower layers formed by the hot water and water.

  In the human body local cleaning device of the present invention, the ratio of the opening area between the total area of the upward opening of the rectifying means and the total area of the horizontal opening is set to 1: 1.2 to 1: 4.3. Thus, the water flow rate in the horizontal direction can be made larger than the water flow rate in the upward direction. As a result, the boundary between the hot water and the water flowing into the hot water tank from the horizontal opening is formed with the hot water and water while catching up with the boundary between the hot water and the water flowing into the hot water tank from the upper opening. As long as the boundary between the upper and lower layers is not broken, the boundary between the horizontal direction and the upper direction can be uniformly pushed up toward the outlet, and hot water can be used without waste.

  Moreover, in the human body local washing apparatus of this invention, water can be flowed from a rectification | straightening means toward a warm water heater by arrange | positioning a rectification | straightening means between an inflow port and a warm water heater. Thereby, warm water can be utilized efficiently from the lowermost surface of the warm water layer generated by the warm water heater.

It is a perspective view inside a human body local cleaning device of the present invention. It is II sectional drawing of the hot water tank unit which showed the hot water heater, the temperature control means, and the rectification | straightening means of the human body local cleaning apparatus of this invention. It is a front view of the hot water tank which showed the inflow port of water, and the outflow port of warm water. It is the III arrow directional view seen from the inflow port side of the rectification | straightening means which has an upper direction opening part and a horizontal direction opening part. It is the III arrow line view which looked at the rectification | straightening means which has an upper direction opening part and a horizontal direction opening part from the inflow port and the intermediate side of a hot water heater. It is IV-IV sectional drawing of a hot water tank which showed the rectification | straightening means. It is the graph which showed the relationship between the opening area ratio of the total area of an upper direction, and the total area of a horizontal direction, and hot water duration.

  Embodiments of the present invention will be described below in detail with reference to the drawings.

  First, the configuration of the human body local cleaning device 1 will be described.

FIG. 1 is a perspective view of the inside of a human body local cleaning device 1 having a hot water tank unit 2 and a cleaning nozzle 3 (cleaning means). A hot water tank unit 2 having a capacity of 5.5 × 10 ⁵ mm ³ is installed in the center of the human body local cleaning device 1 in the center of the drawing, and a cleaning nozzle 3 is provided in the center of the human body local cleaning device 1 in the drawing. is set up. In FIG. 1, the cleaning nozzle 3 is a nozzle that can be expanded and contracted by the water pressure of the water supply 60 (water supply source). The cleaning nozzle 3 can be replaced with another means such as a hole for injecting hot water. Further, the water supply 60 can be replaced by another means such as a pressurizing pump.

  FIG. 2 is a cross-sectional view of the hot water tank unit 2 taken along the line II. The hot water tank unit 2 includes a hot water tank 20 formed of a thermoplastic resin such as polypropylene that can be mass-produced at low cost, and a sheathed heater having an outer cylinder at the lower part of the hot water tank 20 for preventing leakage between water. 30 (warm water heater). Further, the hot water tank unit 2 is disengaged from the vertical upper portion of the sheathed heater 30 between the sheathed heater 30 and the warm water outlet 22 formed in the upper part of the warm water tank 20 as shown in the right center portion of the drawing. A thermistor 40 (temperature adjusting means) is provided on the side wall of the hot water tank 20. The thermistor 40 has an outer cylinder that is formed of a copper-based alloy or the like and has high thermal conductivity so as not to cause leakage between the water in the hot water tank 20. Further, the thermistor 40 is combined with a control circuit 41 (see FIG. 1) that controls the output of the sheathed heater 30 according to the detected temperature, and constitutes a temperature adjusting means for the hot water generated in the hot water tank 20. Further, the hot water tank unit 2 includes a bottom plate 50 formed of a thermoplastic resin such as polypropylene that can be mass-produced at low cost between a water inlet 21 formed at a lower portion inside the hot water tank 20 and a sheathed heater 30. (Rectifying means). The bottom plate 50 is attached to the lower part of the hot water tank 20 so that the lower surface of the ceiling of the bottom plate 50 is located 10 mm above the inflow port 21. At this time, in the bottom plate 50, a boss 23 having a height of 3 mm to 4.5 mm and a height of 27 mm formed on the bottom surface of the hot water tank 20 is inserted into a fixing hole 53 having a diameter of 5 mm formed on the ceiling of the bottom plate 50. At this time, the boss 23 is provided with a receiving surface that supports the bottom surface of the bottom plate 50 as a step so that the bottom surface of the bottom plate 50 is located 10 mm above the inlet 21. Further, after the bottom plate 50 is inserted into the boss 23, the boss 23 protrudes from the top surface of the bottom plate 50 by 4 mm as a crushing allowance for crushing the head of the boss 23 with heat caulking and deforming it into a screw head shape. The boss 23 is provided with a step. The sheathed heater 30 can be replaced by another means such as a ceramic heater having a leakage preventing means such as glaze or a sheathed heater 30 having an outer cylinder formed by press-forming stainless steel having a high melting point. Further, the thermistor 40 is a temperature control means made of a bimetal having an outer cylinder which is press-molded with a copper-based alloy or the like and has high thermal conductivity so as not to cause electric leakage between water in the hot water tank 20. It is also possible to substitute by this means.

  FIG. 3 is a front view of the hot water tank 20 showing the water supply port 24 and the hot water discharge port 25 from the outside. A water supply port 24 having a diameter of 5.2 mm is formed in the lower part of the hot water tank 20 in order to allow the water supplied from the water supply 60 to flow into the hot water tank 20. A discharge port 25 having a diameter of 4 mm is formed in the upper part of the hot water tank 20 through the outlet port 22 having a diameter of 4 mm in order to allow the warm water to flow from the warm water tank 20 to the cleaning nozzle 3. In addition, the magnitude | size of the water supply port 24, the outflow port 22, and the discharge port 25 is decided suitably according to the increase / decrease request | requirement of the flow volume of the warm water injected from the washing nozzle 3 to a human body local part.

  FIG. 4 is a view of the bottom plate 50 having the upper opening 51 and the horizontal opening 52 as seen from the direction of the inlet 21 (see FIG. 6). An upper opening 51 is formed in the ceiling of the bottom plate 50, and a horizontal opening 52 is formed in the side surface of the bottom plate 50. The upward opening 51 includes a plurality of through holes in which nine φ4 mm holes are arranged, and is integrated with the bottom plate 50. Note that the upward opening 51 may be a hole having a diameter of 3 to 5 mm. Furthermore, the upward opening 51 can be replaced with a slit-shaped notch. Furthermore, it is also possible to form a hole by making the upward opening 51 into a notch shape and sandwiching it with the side wall surface of the hot water tank 20. Moreover, the horizontal direction opening part 52 of the bottom plate 50 is made into the shape formed with five slit-shaped notches of width 4mm height 5mm. Furthermore, six slit-shaped notches are formed on the surface that cannot be seen in FIG. 4 to form a total of eleven. Thereby, when the bottom plate 50 is injection-molded, the horizontal opening 52 does not need to have an undercut shape, and the mold does not need to be a complicated, expensive, and fragile slide mold. Further, in order to fix the bottom plate 50 to the hot water tank 20, a fixing hole 53 of φ5 mm into which the boss 23 formed in the hot water tank 20 can be inserted is formed in the ceiling of the bottom plate 50.

FIG. 5 is a III arrow view (see FIG. 6) of the bottom plate 50 having the upper opening 51 and the horizontal opening 52. An upper opening 51 is formed on the ceiling of the bottom plate 50, and a horizontal opening 52 is formed on the side of the bottom plate 50. Also in the direction facing the sheathed heater 30, a horizontal opening 52 is formed with six slit-shaped notches having a width of 4 mm and a height of 5 mm. 4 and 5, the upper opening 51 and the horizontal opening 52 can be provided with chamfering or chamfering on the inside or outside of the bottom plate 50 or both. It is. Thereby, the pressure loss in both the opening parts 51 and 25 can be reduced.

FIG. 6 is a sectional view of the hot water tank 20 taken along the line IV-IV. The bottom plate 50 is disposed between the inlet 21 of the hot water tank 20 and the sheathed heater 30. Further, the head of the boss 23 protruding 4 mm from the bottom plate 50 is heat caulked to deform the head of the boss 23 and fix the bottom plate 50 to the boss 23. At this time, the hot water tank 20 is formed so that a step serving as a receiving portion of the bottom plate 50 is provided in the middle of the boss 23 so that the mounting position and height of the bottom plate 50 can be determined. Similarly, when the hot water tank 20 is inserted into the bottom plate 50 so that it can be fixed by crushing the head of the boss 23, a part of the boss 23 protrudes 4 mm above the bottom plate 50 as a crushing margin. The hot water tank 20 is formed. Moreover, the bottom plate 50 is arrange | positioned beside the sheathed heater 30 so that it may not overlap with the sheathed heater 30 so that warm water can be pushed up from the lower surface of the sheathed heater 30.

  FIG. 7 is a graph showing the result of testing and confirming the relationship between the ratio of the opening area between the total area of the upper opening 51 of the bottom plate 50 and the total area of the horizontal opening 52 and the hot water duration. . In this graph, the vertical axis represents the hot water duration, and the horizontal axis represents the opening area ratio. However, the ratio of the opening area on the horizontal axis is the horizontal opening portion that occupies the opening area ratio of the total area A of the upper opening portion 51 and the total area B of the horizontal opening portion 52 to the total opening area ratio of the two. The ratio of the total area B of 52 (B / (A + B)).

  Below, the flow of the water in the hot water tank 20 and the operation | movement of each component incorporated in the hot water tank unit 2 of the human body local cleaning apparatus 1 of this invention are demonstrated.

In the human body local cleaning apparatus 1 according to the embodiment of the present invention, the water supplied from the water supply 60 has a flow rate of about 1 × 10 ² mm / s and a flow rate of about 8.3 × 10 ³ mm ³ / s. 2, and after being heated to an appropriate temperature in the hot water tank unit 2, it is pushed out to the washing nozzle 3 by the water pressure of the water supply 60. Thereby, the warm water of the appropriate temperature is sprayed from the washing nozzle 3 to the local body part, and the human body part can be washed comfortably.

  Below, the flow of water in the hot water tank 20 will be described in detail.

  Water supplied from the water supply 60 passes through an inflow port 21 formed in the lower part of the hot water tank 20, and has an upward opening 51 formed in the bottom plate 50 provided in the lower part of the hot water tank 20 and the horizontal direction. It passes through the opening 52 at a flow rate of about 2.5 × 10 mm / s. Here, the upper direction opening part 51 and the horizontal direction opening part 52 are formed so that each total area ratio may be 1: 1.2-1: 4.3. Thereafter, the passed water reaches the lower surface of the hot water layer generated in the hot water tank 20 by the sheath heater 30. Thereafter, the passed water is uniformly directed toward the outlet 22 of the hot water tank 20 at a flow rate of about 1 mm / s so as not to break the boundary between the hot water layer generated in the hot water tank 20 and the flowing water layer. Push up the warm water layer. Thereafter, the water that has passed passes through the discharge port 25 of the hot water tank 20 and injects hot water from the washing nozzle 3 onto the human body part.

  Below, the effect of the human body local cleaning apparatus 1 of this invention is demonstrated.

  In the hot water tank 20 of the human body local cleaning device 1 of the present invention, water is caused to flow into the hot water tank 20 by the upward opening 51 and the horizontal opening 52, so that the bottom plate 50 is both upward and horizontal. A blind spot that becomes a stay of hot water is less likely to be formed than in the past. Thereby, the hot water of both areas can be pushed up and utilized more efficiently than before. Furthermore, since the water is caused to flow into the hot water tank 20 in two directions by the upper opening 51 and the horizontal opening 52 of the bottom plate 50, it is difficult to form a flux as compared with the conventional case. Further, the total opening area of the upper opening 51 and the horizontal opening 52 is about four times as large as the opening area of the water supply port 24. From this, the upper and lower layers formed of hot water and water are The flow rate of water can be reduced uniformly to the extent that the boundary is not broken. By these actions, the hot water is pushed up uniformly toward the outlet 22 of the hot water tank 20 so as not to break the boundary between the upper and lower layers formed by the hot water and water. Furthermore, the hot water in the hot water tank 20 can be sprayed from the washing nozzle 3 without waste as compared with the conventional case, and the hot water duration time can be extended and used comfortably. In addition, the pressure loss in both openings 51 and 52 can also be reduced by providing the chamfering of the C surface shape or R surface shape in the upper direction opening part 51 and the horizontal direction opening part 52. FIG.

  The ratio of the opening area between the total area of the upper opening 51 of the bottom plate 50 and the total area of the horizontal opening 52 is 0.55 (1: 1.2) to 0.81 (1: 4.3). As a result, the hot water duration can be increased to 50 seconds or more. In particular, the best hot water duration 54 s can be obtained by setting the opening area ratio to 0.67 (1: 2). Usually, the jet time of hot water required to wash off the dirt on the human body part is about 2 to 5 seconds. If it is washed carefully while moving the buttocks back and forth, left and right, it takes about 15 seconds. On the other hand, when the local body washing apparatus 1 is used in a standard family of four, the hot water duration of 50 s is used by the next user immediately after the previous user, and the four people can comfortably localize the human body. This is the last time that the cleaning device 1 can be used. Therefore, it is desirable to increase the hot water duration even from 50 s to 1 s. However, even if the next user comes in immediately, it takes about 60 seconds or more for the replacement time and stool time with the previous user. During that time, the previous user uses it to replace it with hot water. It is possible to heat the incoming water.

  Moreover, the human body local cleaning apparatus 1 integrates the bottom plate 50, the upward opening 51, and the horizontal opening 52 so that the bottom plate 50, the upward opening 51, and the horizontal opening are integrated. The portion 52 can be integrally formed. Thereby, when the change request of the shape and size of the hot water tank 20 occurs, the shape of the bottom plate 50 according to each hot water tank 20 shape, the opening shape of the upper opening 51 and the horizontal opening 52, Can be prepared. Thereby, it becomes possible to respond to various requests for changing the shape of the hot water tank 20.

1 Human body local cleaning device 2 Hot water tank unit 3 Cleaning nozzle (cleaning means)
20 Hot water tank 21 Inlet 22 Outlet 30 Sheath heater (hot water heater)
40 thermistor (temperature control means)
50 Bottom plate (rectifying means)
51 Upper opening 52 Horizontal opening 53 Fixing hole

Claims (5)

A hot water tank unit that is supplied with water from a water supply source and generates hot water;
Cleaning means for injecting hot water generated by the hot water tank unit to a human body part;
A human body local cleaning device comprising:
The hot water tank unit is
A hot water tank for storing water supplied from the water supply source, forming a water inlet at the bottom, and a hot water outlet at the top;
A hot water heater for heating the water flowing in from the inlet in the hot water tank;
Temperature adjusting means for adjusting the temperature of the hot water heated in the hot water tank;
Rectifying means provided at a lower part in the hot water tank, for adjusting the speed and direction of water flowing into the tank from the inlet,
The rectifying means has an upward opening and a horizontal opening,
Water flowing in from the inlet is branched into the upward opening and the horizontal opening,
The straightening means, the wall of the hot water tank, and the hot water heater are arranged in a horizontal direction, and the hot water heater is disposed between the straightening means and the wall of the hot water tank. Cleaning device.   The human body local cleaning apparatus according to claim 1, wherein each of the upper opening and the horizontal opening includes a plurality of holes. The human body local cleaning apparatus according to claim 1, wherein a total area of the horizontal opening is larger than a total area of the upward opening. And the total area of the upward opening, and the total area of the horizontal openings, the opening area ratio of 1: characterized in that it is a 2, according to any one of claims 1 to 3 Human body local cleaning equipment. The human body local cleaning apparatus according to any one of claims 1 to 4, wherein the rectifying means and the hot water heater are arranged so as not to overlap each other in the vertical direction.

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