JP2013057444A - Tapping tool for high-temperature hot water resupply-type bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tapping tool for a high-temperature hot water resupply type bathtub capable of properly operating a cutoff valve regardless of a flow rate of supplied hot water.SOLUTION: This tapping tool includes a discharge flow channel A for introducing hot water supplied from the outside of a bathtub, a discharge port 45 for discharging the hot water passing through the discharge flow channel A into the bathtub, a cutoff valve 53 for cutting off the discharge flow channel A in operating to stop the supply of hot water, and a shape-memory member 55 disposed at one side at a downstream side of the discharge port 45 and operating the cutoff valve 53 in detecting the hot water of a prescribed temperature or higher. A diffusion guiding section 46 for guiding a part of the hot water discharged from the discharge port 45 to the other side and diffusing the hot water is disposed in the discharge port 45.

Description

  The present invention relates to a hot water hot water bath tub attached to a bathtub.

  In general bathtub facilities, hot water heated by a hot water heater outside the bathroom is supplied into the bathtub from a hot water outlet such as a hot water outlet adapter installed on the side wall of the bathtub.

  Among the bath facilities, the hot water hot water type is supplied with hot water of about 40 ° C from the hot water supply when hot water is supplied into an empty bathtub, while hot water in the bathtub (water) When hot water is added to increase the temperature of the remaining hot water in the state of remaining hot water (when chasing), hot water of 80 ° C or higher is supplied into the bathtub from the tap It has come to be.

  In such high-temperature hot water bath-type bath facilities, when a hot water supply is apologized and hot water is supplied (high-temperature hot water), the shut-off valve is activated to stop the supply of hot water. It has become.

  For example, in the high temperature hot water type hot water outlet shown in Patent Documents 1 to 3 below, a shape memory spring is provided on the side downstream of the discharge port, and when a high temperature abnormality is detected by the spring, the spring expands and contracts. The shut-off valve is activated. For example, when hot hot water is used when hot water is poured, that is, when there is no hot water around the discharge port, the hot water discharged from the discharge port will bounce off the inner surface of the outer cover and make contact with the shape memory spring. Thus, a high temperature is detected by the spring, and the shut-off valve is activated. When hot water is discharged from the discharge port during normal hot water supply, that is, when there is hot water around the discharge port, the hot water mixes with the hot water around the discharge port and the temperature drops. Accordingly, hot water exceeding the required amount is not supplied to the periphery of the shape memory spring, and the high temperature abnormality is not detected before the temperature in the bathtub reaches the specified temperature.

Japanese Patent No. 2586832 Japanese Patent No. 2643891 JP-A-8-247556

  As for the hot water heater used for the above hot water bath type bathtub facilities, the flow rate of hot water supplied varies greatly depending on, for example, the model. However, in the conventional high-temperature hot water type hot-water supply tool, the following problems occur according to the flow rate of hot water.

  First, when there is a large flow rate during normal hot water (when chasing), the momentum of hot water discharged from the discharge port becomes strong, so hot water can easily flow into a wide area around the discharge port. When the heat is transmitted to the shape memory spring and reacts, the shutoff valve operates and the hot water supply is interrupted even though the temperature in the bathtub does not reach the specified temperature.

  On the other hand, in order to prevent this interruption, if the shape memory spring is arranged far away from the discharge port, a problem occurs when the flow rate of hot water is small. In other words, if you apologize when hot water is poured out, if the flow rate is small, the momentum of the hot water discharged from the discharge port is weak, so that the hot water is difficult to scatter to the shape memory spring. End up. For this reason, it becomes difficult for the shape memory spring to detect a high temperature abnormality, and there is a problem that the hot water supply is not immediately stopped.

  As described above, in a conventional hot water supply device adapted to high flow hot water, when connected to a low flow water heater, there is a possibility that the shutoff valve may not operate when shutoff is necessary. When connected to a hot water heater with a high flow rate, there is a problem that the shut-off valve may operate when shut-off is unnecessary.

  The present invention has been made in view of the above-described problems, and is a high-temperature hot water supply that can appropriately supply and stop hot water by appropriately operating a shut-off valve regardless of the flow rate of hot water supplied. It aims at providing the hot-water supply tool for type bathtubs.

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

[1] A hot water hot water bath tub attached to a side wall of a bathtub in a penetrating state,
A discharge passage for introducing hot water supplied from outside the bathtub;
A discharge port for discharging hot water that has passed through the discharge flow path into the bathtub;
A shut-off valve that shuts off the hot water supply by shutting off the discharge flow path during operation;
A shape memory member that is disposed on one side on the downstream side of the discharge port and that activates the shut-off valve when hot water of a predetermined temperature or more is sensed, and
A hot water hot water bath tub hot spring characterized by having a diffusion guiding part for diffusing the hot water by guiding a part of the hot water discharged from the discharge port to the other side inside the discharge port. Ingredients.

  [2] The item 1 described above, wherein the diffusion guide portion is formed by an inclined surface that is provided on one side surface of the inner peripheral side surface of the discharge port and is inclined toward the other side toward the downstream side. Hot spring hot water bath tub as described in 1.

[3] A cover member that covers the discharge port and the shape memory member and that is formed with an opening through which hot water discharged from the discharge port flows out,
The high temperature hot water type bath tub according to the preceding item 1 or 2, wherein a diversion portion for diverting hot water discharged from the discharge port and guiding it to the other side is provided between the discharge port and the opening of the cover member. Hot springs.

[4] A hot water hot water bath tub attached to the side wall of the bathtub in a penetrating state,
A discharge passage for introducing hot water supplied from outside the bathtub;
A discharge port for discharging hot water that has passed through the discharge flow path into the bathtub;
A shut-off valve that shuts off the hot water supply by shutting off the discharge flow path during operation;
A shape memory member that is arranged on one side downstream of the discharge port and that activates the shut-off valve when hot water of a predetermined temperature or more is sensed;
A cover member that covers the discharge port and the shape memory member and that has an opening formed to allow the hot water discharged from the discharge port to flow out,
A high-temperature hot-water bath tub hot-water supply device, characterized in that a diversion portion is provided between the discharge port and the opening of the cover member to divert hot water discharged from the discharge port and guide it to the other side. .

  [5] The hot water hot water bath tub hot-water supply device according to any one of items 1 to 4, wherein the discharge port is provided on both sides of the shape memory member.

  [6] The hot water hot water bath tub hot-water supply device according to any one of items 1 to 5, wherein the discharge port is disposed downward.

  [7] The hot water hot-water bath tub drainer according to [3] or [4], wherein a lattice member is provided in the opening of the cover member, and the diverter is disposed corresponding to the lattice member.

[8] A partition wall extending downstream is provided between the shape memory member and the discharge port,
The hot water supply hot water according to any one of the preceding items 1 to 7, wherein a corner portion on the discharge port side at the lower end surface of the partition wall is formed in a chamfered shape to form a wraparound guide surface. Hot spring for bath tub.

  [9] The hot water hot water bath tub outlet according to the above item 8, wherein an other side direction guide surface that is inclined toward the other side as it goes downstream is formed on the discharge port side of the partition wall.

  According to the hot-water hot water bath tub outlet of the invention [1], in the case of a high flow rate, the hot water discharged from the discharge port can be dispersed to the other side which is the direction away from the shape memory spring. In the case of a low flow rate, it can flow out downstream without being dispersed. For this reason, regardless of the flow rate of hot water, only the required amount of hot water can be guided to the shape memory member side, the shut-off valve can be operated appropriately, and hot water can be supplied and stopped accurately. .

  According to invention [2], the hot water hot water bath tub outlet can more reliably disperse the hot water discharged from the discharge port when the flow rate is high.

  According to invention [3], the hot water hot water bath tub outlet can further disperse the hot water discharged from the discharge port when the flow rate is high.

  According to the hot water hot water bath tub outlet of the invention [4], in the case of a high flow rate, hot water discharged from the discharge port can be dispersed to the other side, and in the case of a low flow rate, It can flow out downstream without being dispersed. For this reason, regardless of the flow rate of hot water, the shut-off valve can be appropriately operated, and hot water can be supplied and stopped accurately.

  According to the hot water hot water bath tub discharge device of the invention [5], the flow rate of hot water discharged from the discharge port can be sufficiently secured when the flow rate is low, and the flow rate of hot water is sufficiently increased when the flow rate is high. Can be secured.

  According to the hot water hot tub type hot water outlet of the invention [6], even when the hot water outlet is attached to the shape memory member, particularly when the discharge ports are arranged on both sides of the shape memory member, the shape memory member is provided. The hot water from one discharge port arranged on the upper side is easily supplied to the shape memory member side, and the hot water from the other discharge port arranged on the lower side is difficult to be supplied to the shape memory member side. That is, on the one hand, the hot water supply to the shape memory member side is increased, but on the other hand, the hot water is decreased, so that the mutual disadvantages are offset. Therefore, even when the hot water supply device is inclined, the shape memory member can detect hot water with high accuracy.

  According to the hot water hot water bath tub discharge device of the invention [7], hot water diverted by the diverting portion can be prevented from coming into contact with the grid member vigorously when pouring hot water at a high flow rate. For this reason, at the time of normal hot water supply, it is possible to prevent hot hot water from inadvertently rebounding from the lattice member and moving toward the shape memory member side.

  According to the hot water hot tub type hot water outlet of the invention [8], hot water discharged from the discharge port wraps around the shape memory member side along the wraparound guide surface particularly when the flow rate is low. For this reason, when high temperature hot water is discharged when hot water is poured, high temperature hot water can be reliably guided to the shape memory member side even at a low flow rate.

  According to the hot water hot tub type hot water outlet of the invention [9], hot water discharged from the discharge port can be further dispersed when the flow rate is high.

FIG. 1 is a side view showing a hot water hot water bath tub according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing the hot water outlet of the embodiment. FIG. 3 is a front cross-sectional view showing the hot-water supply device of the embodiment in a channel conduction state. FIG. 4 is a front cross-sectional view showing the hot-water supply device of the embodiment in a flow path blocking state. FIG. 5 is a front view showing a flow path partition member of the water heater in the embodiment. FIG. 6 is a side view showing the flow path partition member of the embodiment. FIG. 7 is a bottom view showing the flow path partition member of the embodiment. FIG. 8 is an exploded perspective view showing the flow path partition member of the embodiment. FIG. 9 is a front sectional view showing the flow path partition member of the embodiment. FIG. 10 is a side cross-sectional view showing the flow path partition member of the embodiment. FIG. 11 is a front cross-sectional view of a half of one side for explaining the flow of hot water in the hot-water supply device of the embodiment. FIG. 11 (a) is a front cross-sectional view at a high flow rate, and FIG. FIG.

  FIG. 1 is a side view showing a hot water hot water bath tub for an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the hot water tap.

  As shown in both figures, this hot water supply tool is assembled in a mounting hole H provided in a side wall W of the bathtub, and supplies hot water supplied from an outdoor water heater into the bathtub. In this embodiment, the outdoor water heater has a high-temperature hot water hot water function, and when hot water is supplied into an empty bathtub, hot water at an appropriate temperature of about 40 ° C. can be supplied, and the temperature in the bathtub is low. When hot water is poured in when hot water (water) is left in the state of hot water (water), hot water of 80 ° C. or higher can be supplied.

  The tapping tool of the present embodiment includes an out-tank fixture 1, a male screw member 2, a flow path partition member 3, and a filter 9 as basic components. In addition, in this specification, the inner side (left side of FIG. 1) is set as the “front side” or “front side” with respect to the bathtub along the axial direction of the hot-water supply tool, and the outer side (right side of FIG. It will be described as “rear side” or “back side”.

  As shown in FIGS. 1 and 2, the tank outer mounting member 1 is disposed on the same axis in the outer cylindrical portion 12 having a bottomed cylindrical shape with the front side open and the rear side closed. The cylindrical inner cylinder portion 11, the flat ring-shaped flange portion 15 provided on the outer periphery of the front end of the outer cylinder portion 12, and the rear end of the peripheral wall of the outer periphery portion 12 are integrally provided so as to protrude sideways. A pipe-like outer tube connecting portion 13 is integrally provided.

  The inner space of the inner cylinder part 11 is connected to the inner space of the outer pipe connection part 13, and both the inner spaces of the inner cylinder part 11 and the outer pipe connection part 13 are part of the discharge flow path A described later. It is configured as. The axial center of the outer tube connecting portion 13 is substantially orthogonal to the axial center of the inner tube portion 11, and hot water introduced into the outer tube connecting portion 13 is transferred from the outer tube connecting portion 13 to the inner tube as will be described later. When flowing into the section 11, the direction is changed by approximately 90 °.

  In the present embodiment, the pipe connecting portion is constituted by the inner cylinder portion 11.

  A female screw for assembling to the male screw member 2 is engraved on the inner peripheral surface of the front portion of the outer cylinder portion 12.

  In addition, the synthetic resin packing for aiming at watertightness between the flange part 15 and the bathtub outer wall surface is attached to the outer peripheral edge part of the flange part 15 of the tank outer attachment member 1.

  As shown in FIGS. 1 and 2, the male screw member 2 integrally includes a cylindrical body portion 21 whose front and rear ends are open, and a flat ring-shaped flange portion 25 provided on the outer periphery of the front end of the body portion 21. It has a cylindrical shaped product with a hook.

  A male screw is engraved on the outer peripheral side surface of the body portion 21 in correspondence with the female thread of the outer tube portion 12 in the tank outer attachment member 1, and the body portion 21 is placed in the outer tube portion 12 of the tank outer attachment member 1. It can be fixed by screwing in.

  The male screw member 2 is fixed to the side wall W of the bathtub together with the above-mentioned tank outer attachment member 1. That is, in a state in which the flange portion 15 of the tank outer mounting member 1 is disposed along the peripheral edge portion of the mounting hole H on the outer wall surface of the bathtub, the flange portion 25 of the male screw member 2 is a ring-shaped packing made of synthetic rubber ( The body portion 21 of the male screw member 2 is screwed into the outer cylinder portion 12 of the outside-tubing attachment member 1 through the attachment hole H so as to be pressed against the peripheral edge portion of the attachment hole H on the inner wall surface of the bathtub. Fixed. Accordingly, the peripheral edge of the mounting hole in the side wall W of the bathtub is sandwiched by the flange portions 15 and 25 of both the members 1 and 2, and both the members 1 and 2 are assembled in the side wall W in a penetrating state.

  5-10 is a figure which shows the flow-path partition member 3. FIG. As shown in these drawings, the flow path partition member 3 includes an elongated cylindrical pipe portion 31 that extends linearly along the axial direction (front-rear direction), and a circle provided at the front end portion of the pipe portion 31. It has a plate-like disc part 41.

  A valve casing body 42 is formed on the front surface of the disc portion 41 so as to protrude forward. The valve casing main body 42 has a hollow structure and is open at its upper end, and a valve casing lid 43 is fixed to the upper end opening by a screw 44.

  In the present embodiment, a hollow casing portion is constituted by a part of the disc portion 41, the valve casing body 42 and the valve casing lid 43, and a portion surrounded by them is constituted as the valve chamber 4. Yes. The valve chamber 4 constitutes a part of the discharge passage A.

  The inside of the pipe part 31 is configured as a part of the discharge flow path A. The inside of the pipe portion 31 is communicated with the inside of the valve chamber 4 through the front end opening of the pipe portion 31.

  Rectangular discharge ports 45 are formed on both sides of the lower wall of the valve casing main body 42, respectively. In the state of front view (front sectional view), the discharge ports 45 are disposed on both sides of the pipe portion 31.

  In this embodiment, the discharge ports 45, 45 have a length in the vertical direction, and when the upper end thereof is opened to the valve chamber 4, the lower end is opened to the outside at the lower end surface of the valve casing body 42. Has been.

  Each discharge port 45, 45 is opened downward, and is arranged such that the axis is along the vertical direction.

  A diffusion guiding portion 46 is formed on the inner (one side) side surface of the inner peripheral four side surfaces of the lower ends of the discharge ports 45, 45. The diffusion guiding portion 46 is configured by an inclined surface that faces obliquely outward, specifically, an inclined surface that gradually goes outward (other side) as it goes downward (downstream).

  Here, in the present embodiment, when “one side” and “other side” are referred to, the center side of the hot water outlet (a shape memory spring 55 described later is disposed) with reference to the position of the axial center of the discharge ports 45, 45. The side direction is defined as one side (inside), and the direction away from the center of the tapping tool (direction away from the shape memory spring 55) is defined as the other side (outside).

  As shown in FIGS. 3, 4, 8, etc., the valve shaft 51 provided in the valve chamber 4 is disposed along the vertical direction at the intermediate position in the horizontal direction of the valve chamber 4 between the discharge ports 45, 45 on both sides. Yes. The lower side of the valve shaft 51 penetrates the lower end wall of the valve casing main body 42 so as to be slidable in the vertical direction, and the upper end portion is attached to the valve casing lid 43 so as to be slidable in the vertical direction. On the other hand, it is configured to be slidable in the vertical direction (axial direction).

  In the valve chamber 4, an intermediate portion of a valve member 52 that slides together with the valve shaft 51 is fixed to the valve shaft 51. Both side portions of the valve member 52 are configured as shut-off valves 53 and 53, and the shut-off valves 53 and 53 are arranged corresponding to the discharge ports 45 and 45, respectively.

  The opening edge part of the discharge ports 45 and 45 in the internal peripheral surface of the valve chamber 4 is comprised as a valve seat. As shown in FIG. 3, in a state where the valve shaft 51 is disposed at the position slid upward, the shutoff valves 53 and 53 are separated from the discharge ports 45 and 45, and the discharge ports 45 and 45 are opened. In this state, since hot water can pass through the discharge ports 45, 45, the discharge flow path A capable of supplying hot water is conducted.

  Further, as shown in FIG. 4, when the valve shaft 51 slides downward, the discharge ports 45, 45 are closed by the shutoff valves 53, 53. In this state, since hot water cannot pass through the discharge ports 45, 45, the discharge flow path A that cannot supply hot water is blocked.

  A compression coil spring 54 is externally fitted between the valve member 52 in the valve shaft 51 and the lower surface of the valve chamber 4. The urging force of the compression coil spring 54 acts in the extending direction, and the urging force pushes the valve member 52 upward together with the valve shaft 51 in the normal state as shown in FIG. Are spaced apart from the discharge ports 45, 45, and the discharge ports 45, 45 are open.

  A spring receiving piece 47 that extends downward and protrudes forward is formed at the center of the lower end of the disc portion 41. A lower end of a shape memory spring 55 made of a shape memory alloy as a shape memory member is attached to the forward projecting portion of the spring receiving piece 47, and an upper end of the shape memory spring 55 is attached to the lower end of the valve shaft 51.

  The shape memory spring 55 is contracted when a temperature higher than the temperature of hot water that can be comfortably bathed is sensed, and is shape-memorized so that the stretched state is maintained under a temperature environment lower than that temperature.

  Therefore, when hot water touches the shape memory spring 55, the shape memory spring 55 contracts as shown in FIG. 4, and the valve shaft 51 moves downward against the urging force of the compression coil spring 54 together with the valve member 52. By sliding, the discharge ports 45 and 45 are closed by the shutoff valves 53 and 53.

  On both sides of the shape memory spring 55 in the disc portion 41, partition walls 56, 56 extending downward are formed between the shape memory spring 55 and both side discharge ports 45, 45.

  The partition walls 56, 56 have upper ends connected to the inside of the discharge ports 45, 45 in the valve casing main body 42, and a lower end disposed near the lower end of the shape memory spring 55 in the outer peripheral edge of the disc portion 41. Yes.

  5 and 9, the lower end edge of the partition walls 56, 56 is located at the corner of the lower end surface on the discharge port 45, 45 side, in other words, the lower end surface and the discharge port 45, 45 side. Corner portions between the side surfaces (outer surfaces) are formed in a chamfered shape, and wraparound guide surfaces 561 and 561 are formed.

  Further, on the side surface (outer side surface) of the partition walls 56, 56 on the discharge port 45, 45 side, the upper side of the wraparound guide surfaces 561, 561 is directed outward (other side) toward the lower side (downstream side). The outer guide surfaces 57 and 57 are formed so as to incline toward each other.

  Here, in the present embodiment, as shown in FIG. 7 and the like, the front end positions of the partition walls 56 and 56 including the wraparound guide surfaces 561 and 561 and the outer guide surfaces 57 and 57 are more forward than the discharge ports 45 and 45. Has been placed.

  As shown in FIGS. 3 to 5, on the downstream side of the discharge ports 45, 45 in the disc portion 41, flow dividing portions 58, 58 are formed apart from the partition walls 56, 56.

  The diversion portions 58 and 58 are configured as outer guide surfaces 581 and 581 that incline so that the surface on the side facing the discharge ports 45 and 45 is directed outward (other side) as it goes downward (downstream). Yes.

  Here, in the present embodiment, as shown in FIG. 7 and the like, the front end positions of the flow dividing portions 58 and 58 including the outer guide surfaces 581 and 581 are arranged in front of the discharge ports 45 and 45.

  The flow path partition member 3 having the above configuration is detachably engaged with the male screw member 2 assembled together with the outside tank attachment member 1 on the side wall W of the bathtub by a well-known engagement means, and the engagement thereof. In this state, from the front side, the screw 35 (see FIG. 2) is screwed and fixed to the disc part 41 of the flow path partition member 3 and the flange part 25 of the male screw member 2.

  In this assembled state, the pipe portion 31 in the flow path partition member 3 is inserted into the inner cylinder portion 11 of the outside-tubing attachment member 1 disposed inside the male screw member 2 and penetrates the side wall W of the bathtub. Arranged in a state.

  Further, in this assembled state, the water tightness between the members 11 and 31 is achieved by an O-ring (not shown) disposed between the inner cylinder portion 11 of the outer tank attachment member 1 and the pipe portion 31 of the flow path partition member 3. And a packing (not shown) provided on the rear surface of the disk part 41 of the flow path partition member 3, between the disk part 41 of the flow path partition member 3 and the flange part 25 of the male screw member 2. The water-tightness is designed.

  Here, in this embodiment, the outer pipe connecting portion 13 of the tank outer attachment member 1, the inner cylinder portion 11, the pipe portion 31 of the flow path partition member 3, and the inside of the valve chamber 4 are connected in communication, and the discharge flow path A Is formed. The hot water introduced into the discharge flow path A from the outer pipe connecting portion 13 is discharged from the discharge ports 45 and 45 through the discharge flow path A.

  1-4, the filter 9 is arrange | positioned so that the front side of the flow-path partition member 3 may be covered. In the present embodiment, the filter 9 constitutes a cover member.

  The filter 9 has an oblong shape that is vertically long when viewed from the front, and includes a peripheral side wall 91 and a front wall 92 that closes the front side of the peripheral side wall 91.

  An opening 93 is formed in the peripheral side wall 91 except for the upper portion thereof, and a lattice member 94 is formed in the opening 93 in the vertical and horizontal directions. And the hot water discharged from the discharge ports 45, 45 is supplied into the bathtub through the opening 93.

  The filter 9 is detachably attached to the flow path forming member 3 by a known engagement means so as to cover the flow path forming member 3.

  In this filter assembled state, one of the lattice members 941 of the lattice members 94 extending in the front-rear direction among the lattice members 94 of the filter 9 is disposed corresponding to the flow dividing portion 58 of the flow path partition member 3. In other words, the flow dividing portion 58 is formed at a position corresponding to the lattice member 941.

  Further, in this assembled state, a gap is formed between the front wall 92 of the filter 9 and the partition wall 56 of the flow path partition member 3.

  Needless to say, in the present invention, the procedure for assembling the hot water heater to the bathtub is not limited, and any procedure may be used.

  As for the hot-water supply tool assembled in the bathtub, the outer pipe connecting portion 13 of the outside-tubing attachment member 1 and the outdoor water heater are connected by piping through the outer pipe.

  The hot water introduced from the water heater into the discharge passage A through the outer pipe connection portion 13 is discharged from the discharge ports 45 and 45 through the discharge passage A and through the opening 93 of the filter 9. It is supplied into the bathtub.

  By the way, although the hot water supply type hot water heater has different flow rates of hot water to be supplied depending on the model, the hot water supply device of this embodiment has a high flow rate (in the case of high flow rate) and a low flow rate ( In the case of a low flow rate), the flow (flow characteristics) of hot water discharged from the discharge ports 45 and 45 is different.

  First, in the case of a high flow rate, as shown in FIG. 11 (a), since the hot water flowing through the discharge passage A is strong, a part of the hot water discharged from the discharge ports 45, 45 is diffusion-induced. By being guided by the portions 46 and 46 and guided to the outside (the other side), that is, in a direction away from the shape memory spring 55, the whole is diffused and discharged in the circumferential direction. In addition, in the figure, the flow of hot water is schematically shown by broken-line arrows.

  Further, in the present embodiment, since the diverting portions 58 and 58 are formed on the downstream side of the discharge ports 45 and 45, a part of the hot water discharged from the discharge ports 45 and 45 is formed by the diverting portions 58 and 58. By diverting to the outside by the outer guide surfaces 581 and 581, the entire surface is further diffused.

  Thus, in the case of a high flow rate, the hot water outlet of this embodiment flows so that the hot water discharged from the discharge ports 45, 45 radiates outward, and the flow rate is small and momentum when viewed partially. It has been reduced.

  In FIG. 11A, only the right half is shown, but it goes without saying that the flow of hot water in the case of a high flow rate is substantially the same as that on the left half.

  On the other hand, in the case of a low flow rate, as shown in FIG. 11B, since the momentum of the hot water flowing through the discharge passage A is weak, the diffusion guide portions 46 and 46 in the discharge ports 45 and 45 and the partition wall 56 are used. The hot water flowing along the outer guide surfaces 57 and 57 of the slab 57 flows down by its own weight without being scattered outside. For this reason, the hot water does not diffuse outward, but flows downward in the vicinity of the partition walls 56 and 56 (around the shape memory spring 55). In addition, in the figure, the flow of hot water is schematically shown by broken-line arrows.

  Furthermore, since the hot water discharged from the discharge ports 45 and 45 flows together downward without being diffused, the hot water passes through the inside of the flow dividing portions 58 and 58. For this reason, the hot water is not affected by the flow dividing portions 58, 58, and also in this respect, the diffusion of the hot water is prevented. Even if hot water passes around the diversion portions 58 and 58, the hot water does not spread more than necessary, as described above, because the momentum of the hot water is weak.

  Thus, in the case of a low flow rate, the hot water discharged from the discharge ports 45, 45 flows together downward without diffusing to the outside, so that a predetermined flow rate can be secured when viewed partially, and the momentum is also somewhat It is secured.

  In FIG. 11B, only the left half is shown, but it goes without saying that the flow of hot water in the case of a low flow rate is substantially the same as the left half.

  In this embodiment, when hot water is poured (that is, when hot water is poured), that is, when the hot water in the bathtub is adjusted to an appropriate temperature for bathing with the hot water (water) remaining in the bathtub, Then, hot water having a temperature of 80 ° C. or higher is supplied to the outer pipe, the hot water is introduced into the discharge passage A through the outer pipe connecting portion 13, and the hot water passes through the discharge passage A as shown in FIG. Then, it is discharged from the discharge ports 45, 45 and supplied into the bathtub through the opening 93 of the filter 9. The hot water supplied in this way and the hot water in the bathtub are mixed together, and the hot water is supplied until the temperature of the hot water in the bathtub reaches a predetermined temperature.

  In this embodiment, when hot water is applied, that is, when hot water is stored in an empty bathtub, hot water having a temperature suitable for bathing is supplied from the water heater to the outer pipe, and the hot water is discharged through the external fitting connection portion 13. As shown in FIG. 3, the hot water passes through the discharge flow path A, is discharged from the discharge ports 45, 45, and is supplied into the bathtub through the opening 93 of the filter 9. . Thus, hot water is supplied at an appropriate temperature until an appropriate amount of hot water is accumulated in the bathtub.

  In addition, when hot water is supplied and hot water is mistakenly supplied as hot water (high-temperature hot water), the hot water discharged from the discharge ports 45 and 45 through the discharge passage A of the hot water tool is It bounces off and scatters on a part in the filter 92, for example, a filter inner surface such as a front wall 92 of the filter 92, a peripheral side wall 93 (peripheral edges of the lattice members 94 and 941 and the opening 93), a spring receiving piece 47, and the like. Furthermore, a part of the scattered hot water is divided into both sides by a gap between the lower ends of both side partition walls 56, 56, a gap between the front end of both side partition walls 56, 56 and the front wall 92 of filter 92. It flows between the walls 56 and 56 and contacts the shape memory spring 55. As a result, as shown in FIG. 4, the shape memory spring 55 senses a high temperature and contracts, the valve member 52 descends against the urging force of the compression coil spring 54, and the shut-off valves 53, 53 are discharged from the discharge ports 45, 45. Occlude. Thus, the hot water supply is stopped and the hot water supply is immediately stopped.

  Here, in the hot water supply device of the present embodiment, particularly when the flow rate is high, the shape memory spring 55 detects a high temperature abnormality inadvertently before the temperature in the bathtub reaches the specified temperature during normal hot water supply. It is possible to surely prevent the problem of end.

  That is, when hot water is supplied, if the flow rate is high, the hot water discharged from the discharge ports 45, 45 has a strong momentum, so that the hot water is easily supplied to the periphery of the shape memory spring 55, and the bathtub There is a possibility that a high temperature abnormality may be detected by the shape memory spring 55 before the internal temperature reaches the specified temperature.

  On the other hand, as described with reference to FIG. 11 (a), in the hot water outlet of this embodiment, when the flow rate is high, the hot water discharged from the discharge ports 45, 45 is greatly diffused to the outside (the other side). Therefore, in the vicinity of the partition walls 56, 56 (around the shape memory spring 55), the momentum of hot water is partially reduced and the flow rate is also reduced. For this reason, in the vicinity of the partition walls 56, 56, the hot water is smoothly mixed with the remaining hot water and the temperature is lowered, so that the hot water is not introduced more than the required amount to the shape memory spring 55 side. The temperature around the shape memory spring 55 does not become higher than necessary. Therefore, at the time of normal hot water supply, before the temperature in the bathtub reaches the specified temperature, it is possible to reliably prevent a problem that a high temperature abnormality is detected by the shape memory spring 55.

  In addition, in the present embodiment, since the flow dividing portions 58 and 58 are formed at positions corresponding to the lattice members 941 and 941, hot water avoids the lattice members 941 and 941 when pouring hot water. Since the flow is divided by the flow dividing portions 58 and 58, hot water can be prevented from coming into contact with the grid members 941 and 941 vigorously. For this reason, it is possible to appropriately prevent hot hot water from bouncing back at the lattice members 941 and 941 and turning toward the shape memory spring 55, etc., and before the temperature in the bathtub reaches the specified temperature during normal hot water supply. Further, it is possible to more reliably prevent the shape memory spring 55 from detecting a high temperature abnormality.

  Needless to say, when hot water is poured in a low flow rate, the hot water discharged from the discharge ports 45, 45 is weak and the flow rate is small, so hot hot water is smoothly mixed with the remaining hot water in the bathtub. Accordingly, since the temperature is lowered, hot water is not supplied more than the required amount around the shape memory spring 55. Accordingly, as in the case of the high flow rate described above, it is possible to reliably prevent a problem that a high temperature abnormality is detected by the shape memory spring 55 before the temperature in the bathtub reaches the specified temperature during normal hot water pouring. .

  On the other hand, in the hot-water supply device of the present embodiment, when high-temperature hot-water supply is performed when hot water is poured at a low flow rate, supply of hot water is immediately stopped.

  That is, when high temperature hot water is discharged when hot water is poured, if the flow rate is low, the momentum of the hot water discharged from the discharge ports 45, 45 is weak, so that the hot water is sufficiently rebounded at the site in the filter. Therefore, there is a possibility that the hot water does not contact the shape memory spring 55 and the supply of the hot water is not stopped carelessly.

  On the other hand, as explained in FIG. 11 (b) above, in the hot water outlet of the present embodiment, when the flow rate is low, the hot water discharged from the discharge ports 45, 45 is gathered without diffusing outside. Therefore, a predetermined flow rate can be partially secured in the vicinity of the partition walls 56 and 56 (around the shape memory spring 55), and a certain amount of momentum can be secured. For this reason, when a part of hot water sufficiently rebounds at the site in the filter and reaches the shape memory spring 55, the shape memory spring 55 senses a high temperature and the supply of hot water is stopped. In this way, when hot hot water is discharged during hot water supply, the supply of hot water can be reliably stopped.

  In addition, in the present embodiment, since the guiding surfaces 561 and 561 are formed around the downstream end portions of the partition walls 56 and 56, the hot water flowing along the partition walls 56 and 56 has a low momentum, so Due to the influence of the tension, the wire wraps inward along the wraparound guide surfaces 561 and 561. For this reason, hot water at the time of hot water filling is reliably guided to the shape memory spring 55 side, and the supply of hot water can be reliably stopped.

  When hot water is poured at a high flow rate, hot water is prevented from flowing inward by the wraparound guide surfaces 561 and 561. That is, since the outer guide surfaces 57 and 57 are arranged upstream of the wrap-around guide surfaces 561 and 561, hot water having a high flow rate and strong momentum is guided to the outside by the outer guide surfaces 57 and 57. Therefore, only a small amount of hot water reaches the wraparound guide surfaces 561 and 561 side. For this reason, when hot water is poured at a high flow rate, hot water is prevented from flowing inward along the guiding surfaces 561 and 561.

  Needless to say, in the case of a high flow rate, even if high temperature hot water is discharged when hot water is poured, the hot water discharged from the discharge ports 45, 45 is strong and the flow rate is large. The hot water supply can be reliably stopped by rebounding and reliably reaching the shape memory spring 55 and detecting the high temperature by the spring 55.

  As described above, according to the tapping tool of the present embodiment, the hot water discharged from the discharge ports 45 and 45 can be dispersed outward in the case of a high flow rate, and dispersed in the case of a low flow rate. Without letting it flow, it can flow down in a collective state. For this reason, regardless of the flow rate of hot water, hot water is reliably guided to the shape memory spring 55 side in an emergency such as when hot hot water is discharged during hot water filling, and more than the required amount during normal hot water supply. The hot water is not inadvertently guided to the shape memory spring 55 side, and the shutoff valves 53 and 53 can be operated appropriately. For this reason, hot water can be supplied and stopped accurately, and high reliability can be obtained as a hot water outlet.

  In the present embodiment, a gap is formed between the front ends of the both side partition walls 56, 56 and the filter front wall 92. From this gap, high-temperature hot water of a required amount or more is formed on both side partition walls 56, 56. It is possible to prevent the shape memory spring 55 from detecting a high temperature except when necessary. That is, in this embodiment, since the front end positions of the both side partition walls 56, 56 are arranged in front of the front end positions of the discharge ports 45, 45, hot water discharged from the discharge ports 45, 45 is usually When pouring hot water, it will circulate in the rear position (lower position) than the both side partition walls 56, 56. At the time of hot water, hot water exceeding the required amount gets over the front side of the both side partition walls 56, 56, It does not flow between the partition walls 56, 56 on both sides. Of course, when high temperature hot water is discharged when hot water is poured, the hot water discharged from the discharge ports 45 and 45 bounces back to the part in the filter, gets over the front side of the both side partition walls 56 and 56, and the both side partition walls 56 , 56 may flow in between.

  Further, in the present embodiment, since the two discharge ports 45 and 45 are formed, each opening size (hole diameter) of the discharge ports 45 and 45 is made smaller than when only one discharge port is used. can do. For this reason, when hot discharge is performed at a low flow rate during hot water filling, the hot water momentum can be ensured to some extent at each of the discharge ports 45 and 45. Furthermore, since the two discharge ports 45 are formed, the flow resistance can be reduced and a sufficient flow rate can be secured in a high flow rate state. That is, the flow rate can be ensured when the flow rate is low, and the flow rate can be sufficiently secured when the flow rate is high.

  In the present embodiment, since the downward discharge ports 45, 45 are arranged on both sides of the shape memory spring 55, the attached state of the tapping tool itself is displaced in the circumferential direction (rotation direction), and the discharge port 45. , 45 can be detected with high accuracy and high temperature hot water.

  That is, when one discharge port is formed on one side of the shape memory spring, the hot water discharge tool is attached at an angle so that the discharge port is positioned below the shape memory spring. Hot water becomes difficult to be supplied to the shape memory spring side, and there is a possibility that hot water cannot be sufficiently detected. On the contrary, when the hot water outlet is attached so that the discharge port is located above the shape memory spring, the hot water discharged from the discharge port is easily supplied to the shape memory spring side, There is a risk of detecting hot water more than necessary. Thus, when there is only one discharge port, the degree of hot water applied to the shape memory spring differs depending on the inclination of the hot water outlet, and the accuracy of detecting hot water by the shape memory spring is reduced.

  On the other hand, in this embodiment, since the discharge ports 45, 45 are arranged on both sides of the shape memory spring 55, when the hot water outlet is attached to be inclined, the one arranged on the upper side of the shape memory spring 55 Hot water from the discharge port 45 is easily supplied to the shape memory spring 55 side, and hot water from the other discharge port 45 disposed on the lower side is difficult to be supplied to the shape memory spring 55 side. That is, on the one hand, the supply of hot water to the shape memory spring 55 side is increased, but on the other hand, it is less, so that the disadvantages of the two discharge ports 45, 45 when they are arranged tilted are offset. Therefore, even when the water heater is tilted, the shape memory spring 55 can detect hot water with high accuracy, maintain hot water sensing performance regardless of the tilt of the water heater, and improve reliability. This can be further improved.

  In the above-described embodiment, the discharge port is disposed downward. However, the present invention is not limited to this, and the discharge port may be disposed obliquely downward in the present invention.

  The high-temperature hot-water bath tub outlet of the present invention can be applied to, for example, a general household bathtub.

45: Discharge port 46: Diffusion guide part 53: Shut-off valve 55: Shape memory spring (shape memory member)
56: Partition wall 561: Rounding guide surface 57: Outer guide surface 58: Dividing portion 9: Filter (cover member)
93: Openings 94, 941: Grid member A: Discharge flow path W: Side wall of bathtub

Claims (9)

A hot water hot water bath tub attached to the side wall of the bathtub in a penetrating state,
A discharge passage for introducing hot water supplied from outside the bathtub;
A discharge port for discharging hot water that has passed through the discharge flow path into the bathtub;
A shut-off valve that shuts off the hot water supply by shutting off the discharge flow path during operation;
A shape memory member that is disposed on one side on the downstream side of the discharge port and that activates the shut-off valve when hot water of a predetermined temperature or more is sensed, and
A hot water hot water bath tub hot spring characterized by having a diffusion guiding part for diffusing the hot water by guiding a part of the hot water discharged from the discharge port to the other side inside the discharge port. Ingredients.   The said diffusion guide part is provided in the side surface of one side among the inner peripheral side surfaces of the said discharge outlet, and is comprised by the inclined surface which inclines so that it may go to another side as it goes downstream. Hot water hot water bath tub. A cover member that covers the discharge port and the shape memory member, and that has an opening that allows hot water discharged from the discharge port to flow out;
The hot water hot water bath type bathtub according to claim 1 or 2, wherein a diversion portion for diverting hot water discharged from the discharge port and guiding it to the other side is provided between the discharge port and the opening of the cover member. Hot water supply tool. A hot water hot water bath tub attached to the side wall of the bathtub in a penetrating state,
A discharge passage for introducing hot water supplied from outside the bathtub;
A discharge port for discharging hot water that has passed through the discharge flow path into the bathtub;
A shut-off valve that shuts off the hot water supply by shutting off the discharge flow path during operation;
A shape memory member that is arranged on one side downstream of the discharge port and that activates the shut-off valve when hot water of a predetermined temperature or more is sensed;
A cover member that covers the discharge port and the shape memory member and that has an opening formed to allow the hot water discharged from the discharge port to flow out,
A high-temperature hot-water bath tub hot-water supply device, characterized in that a diversion portion is provided between the discharge port and the opening of the cover member to divert hot water discharged from the discharge port and guide it to the other side. .   The hot-water hot water bath tub for hot water according to any one of claims 1 to 4, wherein the discharge ports are respectively provided on both sides of the shape memory member.   The said discharge outlet is a hot-water supply type hot-water bath tub for hot water baths according to any one of claims 1 to 5, which is disposed downward.   The high-temperature hot-water bath tub hot-watering device according to claim 3 or 4, wherein a lattice member is provided in the opening of the cover member, and the diversion portion is disposed corresponding to the lattice member. A partition wall extending downstream is provided between the shape memory member and the discharge port;
The high-temperature hot plug according to any one of claims 1 to 7, wherein a corner portion on the discharge port side of the lower end surface of the partition wall is formed in a chamfered shape to form a wraparound guide surface. Hot water bath tub. The hot water hot water bath tub outlet according to claim 8, wherein an other side direction guide surface is formed on the discharge port side of the partition wall so as to be inclined toward the other side toward the downstream side.

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