JP2016202783A - Hot water supply adapter of bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot water supply adapter capable of preventing blockage of a discharge port by a bather.SOLUTION: A hot water supply adapter P of a bathtub comprises an adapter body 1 attached to a bottom wall of a bathtub B in a penetrating state, a discharge port 31a on one end of a discharge channel 3a disposed on the adapter body 1 is opened in the bathtub B, and hot water supplied from a hot water supply device flows into the discharge channel 3a and the hot water is discharged from the discharge port 31a into the bathtub B. One end side of the discharge channel 3a is covered with a cover part 15a for discharge channel, and the discharge port 31a is formed on an outer peripheral side face of the cover part 15a, therefore the discharge port 31a is not opened upward, and is opened toward a direction along a bottom face of the bathtub B.SELECTED DRAWING: Figure 2A

Description

  The present invention relates to a hot water supply adapter for a bathtub in which hot water is discharged into the bathtub from a discharge port of an adapter body attached to the bottom wall of the bathtub in a penetrating manner.

  Conventionally, hot water and hot water that supply hot water into the bathtub from the hot water supply adapter (circulation adapter) of the bathtub and hot water in the bathtub are sucked from the hot water adapter and heated in an outdoor water heater, and then the heated hot water is There is a well-known hot water supply system for a bathtub that performs a memorial process (circulation process) for returning it into the bathtub through the hot water supply adapter.

  Furthermore, as shown in Patent Documents 1 and 2 in recent years, there has been proposed a drainage plug-integrated hot water supply adapter in which a hot water supply adapter is assembled to the bottom wall of a bathtub and a drainage plug is integrated into the hot water supply adapter. .

  In this hot water supply adapter, a drain plug provided on the bottom surface of the bathtub is provided with an openable / closable drain plug, and a discharge port and a suction port are formed in the vicinity of the drain port. And, for example, hot water in the bathtub is sucked back from the suction port and returned to the water heater while the drain port is closed by the drain plug at the time of remembrance, while hot water discharged from the water heater is discharged from the discharge port to the bathtub. Supplied in. Further, when draining, the drain plug is opened, and hot water in the bathtub is discharged from the drain outlet.

JP 2001-149248 A JP 2002-263019 A

  However, in the drain plug-integrated hot water supply adapter shown in Patent Documents 1 and 2, since the discharge port and the suction port are opened upward on the bottom surface of the bathtub, when adding hot water or memorial service during bathing In addition, the discharge port and the suction port may be blocked by the bather's buttocks and legs. If it does so, the suction | inhalation and discharge of hot water were not performed smoothly, the additional hot water and the memorial service were not performed reliably, and there existed a subject that there was a possibility that a bathing environment comfortable for a bather might not be obtained.

  The present invention has been made in view of the above problems, and provides a hot water supply adapter for a bathtub that can smoothly discharge and suction hot water without the discharge port or suction port being blocked by a bather. The purpose is to do.

  In order to solve the above problems, the present invention comprises the following means.

[1] An adapter body attached to the bottom wall of the bathtub in a penetrating state is provided, and a discharge port at one end of a discharge channel provided in the adapter body is opened in the bathtub, so that hot water supplied from a water heater is provided. A hot water supply adapter that flows into the discharge flow path and is discharged from the discharge port into the bathtub,
One end side of the discharge channel is covered with a cover for discharge channel, and the discharge port is formed on the outer peripheral side surface of the cover unit, so that the discharge port does not open upward and follows the bottom surface of the bathtub. A hot water supply adapter for a bathtub characterized by being opened in a direction.

[2] A suction channel is provided in the adapter main body, a suction port at one end of the suction channel is opened in the bathtub, and hot water in the bathtub is sucked into the suction channel from the suction port. Configured to return to the machine,
One end side of the suction channel is covered with a suction channel cover part, and the suction port is formed on the outer peripheral side surface of the cover part, so that the suction port does not open upward and follows the bottom surface of the bathtub. The hot-water supply adapter for bathtubs according to the preceding item 1, which is open toward the direction.

  [3] The hot water supply adapter according to item 2, wherein the discharge port is opened toward one side and the suction port is opened toward the other side opposite to the one side.

[4] The adapter body is provided with a drain port for draining hot water in the bathtub, and a drain plug is provided at the drain port so as to be freely opened and closed.
The discharge port is provided on one side across the drain port, and the suction port is provided on the other side,
4. The bathtub according to item 3 above, wherein a concave water passage groove communicating from the bottom surface of the bathtub to the drain outlet is formed between the discharge channel cover portion and the suction channel cover portion at the outer peripheral edge of the drain port. Hot water adapter.

  [5] The hot-water supply adapter for bathtubs according to the preceding item 4, wherein the opening surface of the drain outlet is set at the same height or lower than the bottom surface of the bathtub.

[6] An adapter body attached to the bottom wall of the bathtub in a penetrating state is provided, and a discharge port at one end of a discharge channel provided in the adapter body is opened in the bathtub, so that hot water supplied from a water heater is provided. While flowing into the discharge channel and being discharged into the bathtub from the discharge port, a suction port at one end of the suction channel provided in the adapter main body is opened in the bathtub, and hot water in the bathtub is drawn into the suction port A hot water supply adapter that is sucked into the suction flow path and returned to the water heater,
One end side of the suction channel is covered with a suction channel cover part, and the suction port is formed on the outer peripheral side surface of the cover part, so that the suction port does not open upward and follows the bottom surface of the bathtub. A hot water supply adapter for a bathtub characterized by being opened in a direction.

  According to the hot water supply adapter for a bathtub of the invention [1], one end side (the bathtub inner side) of the discharge channel is covered by the discharge channel cover part, and the discharge port is formed on the outer peripheral side surface of the cover part. Since the discharge port is not opened on the upper side but is opened in the horizontal direction along the bottom of the bathtub, the discharge port is not blocked by the bather's buttocks and legs, Hot water can be discharged smoothly.

  According to the hot water supply adapter for a bathtub of the invention [2], since the suction port is opened in the horizontal direction along the bottom surface of the bathtub, the suction port is closed by the bather's buttocks and legs. There is no such thing, and the suction of hot water into the suction port can be performed smoothly.

  According to the hot water supply adapter for a bathtub of the invention [3], since the discharge port and the suction port are opened in opposite directions, the hot water discharged from the discharge port circulates largely in the bathtub and is sucked into the suction port. As a result, the occurrence of so-called shortcuts can be prevented and the memorial operation can be performed efficiently.

  According to the hot water supply adapter for the bathtub of the invention [4], the water flow channel leading from the bathtub wall surface to the drain outlet is formed between the discharge flow path cover portion and the suction flow path cover portion, so that the hot water in the bathtub is At least, the hot water can be smoothly led to the drain through the water groove, and the discharge performance can be improved.

  According to the hot water supply adapter for a bathtub of the invention [5], since the opening surface of the drain port is set to be equal to or lower than the bottom surface of the bathtub, hot water can be guided more smoothly from the bottom surface of the bathtub to the drain port. The property can be further improved.

  According to the hot water supply adapter for the bathtub of the invention [6], the suction port is not blocked by the bather's buttocks and legs as in the above, and the suction of hot water from the suction port is performed smoothly. Can do.

FIG. 1 is a cross-sectional view showing a hot water supply system for a bathtub to which a drain plug integrated hot water supply adapter according to an embodiment of the present invention is applied. Drawing 2A is a sectional view which looked at the hot-water supply adapter circumference in the hot-water supply system of an embodiment from one direction. Drawing 2B is an exploded sectional view which looked at the hot-water supply adapter circumference in the hot-water supply system of an embodiment from the other direction. Drawing 3A is a perspective view which looked at a hot-water supply adapter of an embodiment from one direction. Drawing 3B is a perspective view which looked at a hot-water supply adapter of an embodiment from the other direction. FIG. 4 is a plan view showing the hot water supply adapter of the embodiment.

  FIG. 1 is a cross-sectional view showing a hot water supply system for a bathtub to which a drain plug integrated hot water supply adapter P according to an embodiment of the present invention is applied, and FIGS. 2A to 4 are views showing the hot water supply adapter P. As shown in these drawings, in this hot water supply system, a drain plug-integrated hot water supply adapter P is assembled to the bottom wall of the bathtub B in a penetrating state. In the following description, in order to facilitate understanding of the invention, the right side is referred to as “front side” and the left side is referred to as “rear side” in FIG.

  As shown in FIGS. 1 to 4, the hot water supply adapter P includes an adapter main body 1 and a drain plug 5. The adapter body 1 includes a drain pipe 2. A donut-shaped flange 11 protruding outward (horizontal direction) is integrally formed at the upper end (one end) of the drain pipe 2. In the present embodiment, one end opening (upper end opening) of the drain pipe 2, in other words, the central hole of the flange 11 is configured as the drain port 21. An opening (other end opening) 22 on the other end side (lower end side) of the drain pipe 2 is opened sideways.

  On the lower surface of the flange 11, an outer peripheral wall 12 is formed integrally with the flange 11 so as to cover the outer periphery of the drain pipe 2. A male screw is engraved on the outer peripheral surface of the outer peripheral wall 12.

  Cover portions 15a and 15b are formed on both sides of the flange 11 of the adapter body 1 in front and behind the drain outlet 21 so as to cover the upper side of the flange 11. Among the cover portions 15a and 15b, the front side is configured as the discharge flow path cover portion 15a, and the rear side is configured as the suction flow path cover portion 15b. The cover portions 15 a and 15 b are formed in a substantially arc shape in plan view, and the outer peripheral edge portions of the cover portions 15 a and 15 b are arranged along the outer peripheral edge portion of the flange 11. Further, a discharge port 31a and a suction port 31b extending continuously in the circumferential direction are formed on the respective outer peripheral side surfaces of the discharge channel cover portion 3a and the suction channel cover portion 3b. Here, in the present embodiment, the discharge port 31a is in a direction (horizontal direction) along the bottom surface of the bathtub B and opens toward the front side (one side), and the suction port 31b extends along the bottom surface of the bathtub B. It is a direction (horizontal direction), Comprising: It opens toward the back side (other side). That is, the discharge port 31a and the suction port 31b are opened in opposite directions.

  Further, on the front side between the drain pipe 2 and the outer peripheral wall 12, there is a discharge channel 3a whose upper end side (one end side) passes through the flange 11 and passes through the inside of the discharge channel cover portion 15a to reach the discharge port 31a. Is formed. The lower end side (the other end side) of the discharge flow path 3a is opened downward in the forward connection pipe portion 32a. Further, an L-shaped forward joint pipe 33a is connected to the forward connection pipe section 32a.

  Further, the rear side between the drain pipe 2 and the outer peripheral wall 12 is formed independently of the discharge flow path 3a, and the upper end side (one end side) penetrates the flange 11 to form the suction flow path cover portion 15b. A suction flow path 3b is formed through the inside to the suction port 31b. The lower end side (the other end side) of the suction flow path 3b opens downward in the return side connecting pipe portion 32b. Further, an L-shaped return side joint pipe 33b is connected to the return side connection pipe part 32b.

  Further, a recess that communicates the drain outlet 21 of the adapter body 1 and the outside of the adapter body 1 (the bottom surface of the bathtub) is provided between the discharge passage cover portion 15a and the suction passage cover portion 15b on the flange 11 of the adapter body 1. A groove-shaped water passage groove 16 is formed.

  The adapter main body 1 having the above-described configuration is inserted into the mounting hole H formed on the bottom wall of the bathtub so that the flange 11 is installed at the peripheral edge of the mounting hole H on the bottom surface of the bathtub. An annular female screw member 19 is fastened to the male screw on the outer peripheral wall 12 of the adapter body 1 from the lower surface side. In this way, the peripheral portion of the mounting hole H in the bathtub bottom wall is sandwiched and held by the female screw member 19 and the flange 11 of the adapter body 1, and the adapter body 1 is assembled in a penetrating manner in the bathtub bottom wall.

  A watertight packing 191 is interposed between the flange 11 of the adapter 11 and the bathtub bottom wall, and a watertight packing 192 is also interposed between the female screw member 19 and the bathtub bottom wall.

  Moreover, in this embodiment, the peripheral part of the attachment hole H in the bathtub bottom wall is recessed, and the opening surface (equivalent to the upper surface of the flange 11) of the drain port 21 is set to the substantially same height position with respect to the bathtub bottom surface. Has been. Furthermore, the bottom surface of the water flow groove 16 in the adapter main body 1 is also set at substantially the same height position with respect to the bottom surface of the bathtub.

  The drain plug 5 attached to the drain port 21 of the adapter body 1 so as to be freely opened and closed is constituted by a pop-up drain plug. That is, one end of a wire 51 is connected to the center of the lower surface of the drain plug 5, and a tube 52 that slidably accommodates the wire 51 passes through the drain pipe 2 from the lower part of the drain pipe 2 through the drain pipe peripheral wall. To the outside of the adapter body 1. Furthermore, the other end side of the wire 51 in the tube 52 is connected to a drain plug operation section (not shown) provided at, for example, a bathtub edge. There are two types of pop-up type drain plugs: manual type and automatic type (electric type). In the case of manual type, the drain plug operation part is provided with a knob that can be pushed / retracted, etc. The drain plug 5 is pushed up and the drain port 21 is opened as shown by the imaginary line in FIGS. 2A and 2B, while the drain plug 5 is pulled down via the wire 51 by pulling up the knob, for example. Accordingly, as shown by the solid lines in FIGS. 2A and 2B, the drain outlet 21 is closed in a watertight state by the drain plug 5. In the case of the automatic type (electric type), the drain plug operation unit is provided with a push button or the like, and when the push button is pushed with the drain plug 5 closed, the wire 51 is pushed in and the drain plug 5 is When the push button is operated from the opened state while the drain port 21 is pushed up, the wire 51 is pulled in and the drain plug 5 is pulled down to close the drain port 21. .

  The forward connection pipe 32a (outward pipe joint 33a) of the adapter main body 1 in the adapter P is connected to the discharge port 9a of the water heater 9 via the forward pipe 91a and the return connection pipe of the adapter main body 1. 32b (return side pipe joint 33b) is connected to the suction port 9b of the water heater 9 through a return pipe 91b.

  The hot water discharged from the discharge port 9a of the water heater 9 is introduced into the forward connection pipe portion 32a of the adapter P through the forward tube 91a, and further discharged into the bathtub B from the discharge port 31a through the discharge channel 3a. It has come to be. The hot water in the bathtub B sucked from the suction port 31b of the adapter P is introduced into the return pipe 9b from the return side connection pipe portion 32b through the suction flow path 3b, and sucked into the hot water heater 9 through the return pipe 9b. It has come to be.

  When hot water is applied in the hot water supply system having the above configuration, a double conveyance method is adopted. That is, hot water is discharged from the discharge port 9a and the suction port 9b of the water heater 9 with the drain plug 5 closed, and the hot water passes through the forward pipe 91a and the return pipe 91b, and the discharge flow path 3a of the hot water supply adapter P. And the suction channel 3b is supplied into the bathtub B from the discharge port 31a and the suction port 31b. In addition, when performing hot water beam by single conveyance, the hot water discharged from the discharge port 9a of the water heater 9 is supplied into the bathtub B from the discharge port 31a through the discharge pipe 3a and the discharge flow path 3a of the hot water supply adapter P. Is done.

  In the case of performing the retreat in a state where a predetermined amount of hot water is stored in the bathtub B, the hot water in the bathtub B is set to a negative pressure by setting the suction port 9b of the hot water heater 9 to a negative pressure. It is sucked in from 31b and returned to the hot water heater 9 through the suction flow path 3b and the return pipe 91b. The returned hot water is heated by the water heater 9, and the heated hot water is discharged from the discharge port 9a, introduced into the discharge flow path 3a of the adapter P through the forward pipe 91a, and then into the bathtub B from the discharge port 31a. Discharged. In this way, hot water is circulated between the bathtub B and the hot water heater 9 to perform the memorial. In addition, in the case of addition hot water (hot water) or additional water (pour water), the hot water in the bathtub B is not returned to the hot water supply device 9, but the hot water from the hot water supply device 9 passes through the forward pipe 91a and the discharge flow path 3a. Thus, it will be supplied into the bathtub B from the discharge port 31a.

  On the other hand, as described above, when the drain plug 5 is opened by the operation of the drain plug operation section at the tub edge, the hot water stored in the bathtub B is discharged through the drain port 21.

  According to the drain plug-integrated hot water supply adapter P in the hot water supply system described above, one end side (inside each bathtub) of the discharge flow path 3a and the suction flow path 3b is the discharge flow path cover portion 15a and the suction flow path cover portion 15b. Since the discharge port 31a and the suction port 31b are formed on the outer peripheral side surfaces of the respective cover portions 15a and 15b, the discharge port 31a and the suction port 31b are not opened upward and are horizontally aligned along the bathtub bottom surface. It is opened toward. For this reason, the discharge port 3a and the suction port 31b are not blocked by the bather's buttocks and legs. Therefore, since hot water can be smoothly discharged from the discharge port 31a and hot water can be smoothly sucked into the suction port 31b, memorial, additional hot water, and additional water can be surely performed during bathing, so that comfortable bathing can be performed. You can get the environment.

  Furthermore, according to the hot water supply system of the present embodiment, the discharge port 31a of the adapter P is opened forward along the bathtub bottom surface, and the suction port 31b is opened backward along the bathtub wall surface. The hot water discharged forward from the outlet 31a of the adapter P at the time of memorialization makes a U-turn on the front wall of the bathtub and flows backward along the side wall of the bathtub, and further makes a U-turn on the rear wall of the bathtub and moves forward. To be sucked from the suction port 31b. As described above, since a hot water flow that circulates throughout the entire area of the bathtub is generated during the memorial service, hot water discharged from the discharge port 31a of the adapter P can be prevented from being directly sucked from the suction port 31b. In addition, it is possible to perform the memorial efficiently and to accurately control the temperature of the hot water in the bathtub.

  Moreover, according to the adapter P of this embodiment, since the water flow groove 16 leading from the bathtub wall surface to the drain outlet 21 is formed between the two cover portions 15a and 15b on the outer peripheral upper surface side, the hot water in the bathtub B is Even if the remaining hot water is reduced when discharging from the drain port 21, the hot water is smoothly guided to the drain port 21 through the water passage groove 16 and discharged. In this way, it is possible to reliably prevent problems such as good drainage and a small amount of hot water remaining without being discharged.

  Especially in this embodiment, since the opening surface of the drain port 21 and the bottom surface of the water flow groove 16 are set at the same height position with respect to the bottom surface of the bathtub, good drainage can be obtained more reliably. The drainage can be further improved.

  In the above embodiment, the drain plug-integrated hot water supply adapter in which the drain plug is integrally incorporated in the adapter main body has been described as an example. However, the present invention is not limited thereto, and in the present invention, a drain outlet and a drain plug are integrally provided. It can also be applied to hot water adapters that are not.

  In the above embodiment, both the discharge port and the suction port are opened in the horizontal direction along the bottom surface of the bathtub. However, the present invention is not limited to this. In the present invention, at least one of the discharge port and the drain port is used. What is necessary is just to make it an opening part open in the direction in alignment with the bathtub bottom face.

  Furthermore, in the said embodiment, although the circulation type hot water supply adapter which circulates hot water between a bathtub and a water heater was mentioned as an example, it was not restricted to it, In this invention, only hot water is supplied in a bathtub from a water heater. It can also be applied to hot water supply adapters.

  Further, in the above embodiment, the forward pipe 91a from the water heater 9 and the return side connection pipe part 32a (return side pipe joint 33b) and the return side connection pipe part 32b (return side pipe joint 33b) of the hot water supply adapter P and Although the case where the present invention is applied to the so-called polar type hot water supply adapter P in which the connection portion of the return pipe 91b is determined has been described as an example, the present invention is not limited to this, and the present invention is not limited to two connections of the hot water supply adapter. The present invention can also be applied to a so-called non-polar type hot-water supply adapter that can be used regardless of whether an outgoing pipe or a return pipe from a hot water heater is connected to the pipe portion.

  Moreover, in the said embodiment, although the opening surface of the drain port 21 and the bottom face of the water flow groove 16 are set to the same height position with respect to the bathtub bottom face, it is not restricted only to it, In this invention, the opening of the drain port 21 You may make it set the surface and / or the bottom face of the water flow groove 16 to a position lower than the bathtub bottom face.

  The hot-water supply adapter for a bathtub according to the present invention can be suitably applied to a bathtub in a general house, for example.

1: Adapter body 15a: Cover for discharge channel 15b: Cover for suction channel 16: Water flow groove 2: Drain pipe 21: Drain port 3a: Discharge channel 31a: Discharge port 3b: Suction channel 31b: Suction Port 5: Drain plug 9: Water heater B: Bathtub P: Drain plug integrated water heater adapter

Claims (6)

An adapter body attached to the bottom wall of the bathtub in a penetrating state, a discharge port at one end of a discharge channel provided in the adapter body is opened in the bathtub, and hot water supplied from a water heater is supplied to the discharge flow A hot water supply adapter that is flowed into the road and discharged from the discharge port into the bathtub,
One end side of the discharge channel is covered with a cover for discharge channel, and the discharge port is formed on the outer peripheral side surface of the cover unit, so that the discharge port does not open upward and follows the bottom surface of the bathtub. A hot water supply adapter for a bathtub characterized by being opened in a direction. The adapter body is provided with a suction channel, and a suction port at one end of the suction channel is opened in the bathtub, and hot water in the bathtub is sucked into the suction channel from the suction port and returned to the water heater. Configured as
One end side of the suction channel is covered with a suction channel cover part, and the suction port is formed on the outer peripheral side surface of the cover part, so that the suction port does not open upward and follows the bottom surface of the bathtub. The hot water supply adapter for a bathtub according to claim 1, wherein the hot water supply adapter is opened toward a direction.   The hot water supply adapter according to claim 2, wherein the discharge port opens toward one side and the suction port opens toward the other side opposite to the one side. The adapter body is provided with a drain outlet for draining hot water in the bathtub, and a drain plug is provided at the drain outlet so as to be freely opened and closed.
The discharge port is provided on one side across the drain port, and the suction port is provided on the other side,
The recessed water flow groove which leads to the said drain outlet from the bathtub bottom face is formed between the said discharge flow path cover part and the said suction flow path cover part in the outer periphery part of the said drain outlet. Hot water adapter for bathtub.   The hot-water supply adapter for a bathtub according to claim 4, wherein the opening surface of the drain outlet is set at the same height or lower than the bottom surface of the bathtub. An adapter body attached to the bottom wall of the bathtub in a penetrating state, a discharge port at one end of a discharge channel provided in the adapter body is opened in the bathtub, and hot water supplied from a water heater is supplied to the discharge flow The suction port at one end of the suction channel provided in the adapter body is opened in the bathtub, and hot water in the bathtub is sucked from the suction port. A hot water supply adapter that is sucked into the flow path and returned to the water heater,
One end side of the suction channel is covered with a suction channel cover part, and the suction port is formed on the outer peripheral side surface of the cover part, so that the suction port does not open upward and follows the bottom surface of the bathtub. A hot water supply adapter for a bathtub characterized by being opened in a direction.

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