JP5647586B2 - Bath tub and its flow regulating member - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a hot water supply device for a bathtub attached to the bathtub and a rectifying member thereof.

  In general bathtub facilities, hot water heated by a hot water heater outside the bathroom is supplied into the bathtub from a hot-water supply device installed on the side wall of the bathtub.

  For example, as shown in the following Patent Documents 1 to 3, a hot water hot water bath tub outlet is a discharge channel that extends from the outside of the bathtub to the inside of the bathtub, and a discharge port that opens into the bathtub and communicates with the discharge channel The water heater and the discharge flow path are connected by piping with an outer pipe. Then, hot water is introduced from the water heater into the discharge channel of the hot water outlet through the outer tube, and hot water that has passed through the discharge channel is discharged from the discharge port and supplied into the bathtub. ing.

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

  By the way, in the conventional hot-water supply tool, eddy currents are generated in the hot water flowing through the discharge flow path due to the shape of the discharge flow path, so that the hot water flow is biased and the hot water is stabilized from the discharge port. The problem that it is not discharged in a state occurs. As a result, inconveniences such as insufficient flow of hot water to be supplied may occur.

  This invention is made | formed in view of said subject, and it aims at providing the hot-water supply tool for bathtubs in which hot water is discharged in the stable state from a discharge outlet, and its rectification | straightening member.

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

[1] A flow path partition member in which a linearly extending pipe portion is disposed in a penetrating manner on the side wall of the bathtub, and has a discharge port that communicates with the pipe portion and opens into the bathtub,
An outside-tubing attachment member having a pipe connection portion communicating with the upstream end portion of the pipe portion, and a pipe-like outer tube connection portion communicating with the pipe connection portion disposed outside the bathtub,
When the flow path constituted by the pipe part and the pipe connection part is an axial direction flow path, the rectifying plate is provided on the upstream side of the axial direction flow path and arranged along the axial direction. A rectifying member having
Hot water introduced into the axial flow path from the outside of the bathtub through the outer pipe connecting portion changes direction and is discharged from the discharge port through the rectifying member and the axial flow path. Bathtub tapping equipment characterized by having done.

[2] The rectifying member includes a cylindrical body fitted into the upstream end portion of the pipe portion in a conforming state,
The hot water supply device for bathtubs according to the preceding item 1, wherein the current plate is provided inside the cylindrical body.

  [3] In a front view as viewed from the downstream side along the axial center of the pipe portion, the rectifying plates are arranged radially inside the cylindrical body and are arranged at equal intervals in the circumferential direction. The hot water supply device for bathtubs according to the preceding item 2, which is arranged.

  [4] The bathtub hot-water supply device according to any one of the preceding items 1 to 3, wherein the outer pipe connection portion has an axial center disposed substantially perpendicular to the axial center of the pipe portion.

  [5] The hot water supply device for a bathtub according to any one of the preceding items 1 to 4, wherein two discharge ports are formed so as to be positioned on both sides of the pipe portion in a front view state, respectively.

[6] A casing portion connected to the downstream end portion of the pipe portion is provided,
4. The hot water supply device for a bathtub according to the above item 2 or 3, wherein the discharge port is formed on the peripheral wall of the casing portion.

  [7] The bathtub hot-water supply device according to [6], wherein the discharge port is disposed downward.

[8] a shut-off valve that closes the discharge port during operation to stop the supply of hot water;
8. 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. Bathtub hot springs.

[9] A linearly extending pipe portion is arranged in a penetrating manner in the side wall of the bathtub, and has a discharge partition that communicates with the pipe portion and opens into the bathtub, and upstream of the pipe portion. An outer tank mounting member having a pipe connection portion communicating with the side end portion, and a pipe-like outer tube connection portion communicating with the pipe connection portion disposed outside the bathtub, and the outer tube from outside the bathtub Hot water introduced into the pipe connection part via the connection part is a rectifying member for a hot water supply device for a bath tub that changes direction and is discharged from the discharge port through the pipe part,
A rectifying member for a hot water supply device for a bath tub, comprising a rectifying plate provided at an upstream end portion of the pipe portion and disposed along an axial direction.

  The present invention can also employ the following configurations.

  [10] Any one of items 1 to 8 above, wherein a diffusion guide portion is provided in the discharge port to guide a part of the hot water discharged from the discharge port to the other side to diffuse the hot water. The hot water supply device for bathtubs as described in 2.

[11] 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,
Any one of the preceding items 1 to 8, and 10 in which a diversion part 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. Bathtub hot springs.

  According to the hot water supply device for bathtubs of the invention [1], since the flow straightening member is arranged on the upstream side of the axial direction flow path, the hot water passes through the flow straightening member and is rectified and the vortex flow or the like disappears. There is no bias in the flow of hot water, and hot water can be discharged from the discharge port in a stable state.

  According to the hot water supply device for bathtubs of the invention [2], it is possible to easily attach the rectifying member only by fitting the rectifying member into the pipe portion of the flow path partition member.

  According to the bathtub water heater of the invention [3], the hot water is more reliably rectified, and the hot water can be discharged from the discharge port in a more stable state.

  According to the water heater for bathtubs of the invention [4], whirlpools are particularly easily generated in the hot water introduced into the pipe connecting portion through the outer pipe connecting portion, but the whirlpool can be reliably eliminated. .

  According to the water heater for bathtubs of the invention [5], hot water can be discharged from the two discharge ports in an even state.

  According to invention [6] and [7], the tub hot-water supply device is apt to generate turbulent flow in the casing part, but the flow rate of hot water that has passed through the rectifying member can be reduced on the downstream side of the pipe part. It is possible to prevent the occurrence of turbulent flow and to discharge from the discharge port in a more stable state.

  According to invention [8], the hot-water supply device for bathtubs can be suitably employed for a hot-water hot-water bath supply device for bathtubs.

  According to the invention [9], it is possible to provide a rectifying member for a hot water supply device for bathtubs that exhibits the same operational effects as described above.

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 in a state where the flow regulating member is fitted. 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 high flow rate, and FIG. 11 (b) is at low flow rate. FIG. FIGS. 12A and 12B are diagrams showing the rectifying member employed in the embodiment, wherein FIG. 12A is a side view, FIG. 12B is a front view, and FIG. 12C is a side sectional view. FIG. 13 is a block diagram schematically showing the periphery of the discharge flow path in the hot water outlet of the embodiment.

  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 a tank external fixture 1, a male screw member 2, a flow path partition member 3, a rectifying member 6, 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.

 As shown in FIGS. 10 and 12, a rectifying member 6 is provided at the rear end (downstream end) of the pipe portion 31 of the flow path partition member 3.

  The rectifying member 6 includes a cylindrical tubular body 61, a flange portion 62 formed so as to project outward on the outer periphery of the rear end of the tubular body 61, and a rectifying plate 63 formed inside the tubular body 61. And.

  The cylindrical body 61 has an outer diameter dimension corresponding to an inner diameter dimension of the pipe portion 31 of the flow path partition member 3 and can be fitted into the pipe portion 31 in an adapted state. .

  The flange portion 62 has an outer diameter dimension that is larger than the inner diameter dimension of the pipe portion 31 and is equal to or smaller than the outer diameter size of the pipe portion 31, and when the tubular body 61 is fitted into the pipe portion 31. By engaging with the rear end surface of the pipe portion 31, the rectifying member 6 is positioned with respect to the pipe portion 31, and the forward displacement is prevented.

  Four rectifying plates 63 are provided at equal intervals in the circumferential direction. That is, in the front view state, each rectifying plate 63 is radially arranged such that each inner end thereof is connected and integrated at the axial center position, and the outer end is connected and integrated with the inner peripheral surface of the cylindrical body 61. They are arranged and arranged at intervals of 90 ° in the circumferential direction. Further, each rectifying plate 63 is formed in a plate shape that is continuously formed along the axial direction of the rectifying member 6.

  The straightening member 6 is bonded in a state in which the tubular body 61 is fitted into the rear end portion of the pipe portion 31 so that the flange portion 62 is locked to the rear end surface of the pipe portion 31 in the flow path partition member 3. It is bonded and fixed by the agent.

  In this embodiment, the rectifying member 6 is attached to the flow path partition member 3 with an adhesive. However, in the present invention, the attachment method is not limited. For example, the rectifying member 6 is made of a material having elasticity, and is attached to the pipe portion 31 by being compressed and press-fitted, and a circumferential groove is formed on the outer peripheral surface of the cylindrical body 61 of the rectifying member 6, and O A mounting method in which an elastic member such as a ring is accommodated and the elastic member is compressed and press-fitted into the pipe portion 31, a male screw is engraved on the outer peripheral surface of the cylindrical body 61 of the rectifying member 6, and the pipe portion An attachment method or the like in which a female screw is engraved on the inner peripheral surface of 31 and the rectifying member 6 is screwed into and fixed to the pipe portion 31 can be employed. The point is that it can be fixed to such an extent that it can prevent displacement in the axial direction and rotation in the direction around the axis against the water pressure of the hot water flowing through the pipe portion 31, and can be attached and detached with a relatively simple operation. Any mounting method can be employed.

  The flow path partition member 3 to which the rectifying member 6 having the above configuration is attached is detachably engaged with the male screw member 2 assembled together with the outside-tubing attachment member 1 on the side wall W of the bathtub by a known engagement means. In addition, in the engaged state, the screw 35 (see FIG. 2) is screwed into and fixed to the disc portion 41 of the flow path partition member 3 and the flange portion 25 of the male screw member 2 from the front side.

  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.

  Next, in this embodiment, the rectifying action by the rectifying member 3 will be described. FIG. 12 is a block diagram schematically showing the periphery of the discharge flow path in the hot water outlet of the present embodiment. As shown in the figure, of the discharge flow path A in the hot water outlet, a flow path constituted by the inside of the pipe portion 31 of the flow path partition member 3 is referred to as a first center flow path A1, When the flow path constituted by the inside of the cylinder portion 11 is the second center flow path A2, and the flow path constituted by the inside of the outer tube connection portion 13 of the outside-tubing attachment member 1 is the introduction flow path A3, The flow paths A1 and A2 are arranged on a straight line along the axis of the hot water supply tool, and the introduction flow path A3 is arranged substantially at right angles to the center flow paths A1 and A2. Therefore, when hot water is introduced into the second center flow path A2 through the introduction flow path A3, the flow direction of the hot water is changed by 90 °. When hot water is bent by 90 ° and flows in this way, a vortex is generated.

  In the state where the vortex flow is generated, the flow of hot water passing through the center flow paths A2 and A1 and the valve chamber 4 is biased, and hot water is discharged from the discharge ports 45 and 45 in a state where the flow is biased. Furthermore, there is a variation in the flow rate, flow rate, discharge direction, etc. of hot water between the two discharge ports 45, 45. As described above, when the flow rate is varied and hot water is discharged from the discharge ports 45 and 45 with the flow being biased, the flow of the hot water is disturbed and becomes unstable, so that a sufficient flow rate cannot be secured. As will be described later, when hot hot water is poured out during hot water pouring, the shape memory spring 55 cannot detect a high temperature abnormality, or a high temperature abnormality is detected during normal hot water pouring.

Therefore, in the tap water tool of the present embodiment, the rectifying member 6 is disposed at the rear end portion of the pipe portion 31 of the flow path partition member 3, that is, the upstream end portion of the first center flow path A1. Even if hot water is generated when hot water is introduced from the flow path A3 to the second center flow path A2, when the hot water passes through the flow straightening member 6, it flows along the flow straightening plate 63 and is rectified. The eddy current disappears. Since the rectified hot water passes through the first center flow path A1 and the valve chamber 4,
Hot water is discharged from the discharge ports 45, 45 in the rectified state. Furthermore, there is no variation in the flow rate, the flow velocity, the discharge direction, etc. between the two discharge ports 45, 45, and a uniform state is obtained. When hot water is discharged from the discharge ports 45, 45 in such a rectified state without fluctuations, the flow of hot water is stable without being disturbed, and a sufficient flow rate can be secured. When the hot water is discharged, the shape memory spring 55 can accurately detect the high temperature abnormality, and it is possible to reliably prevent a problem that the high temperature abnormality is inadvertently detected during normal hot water supply.

  Here, in the present embodiment, the rectifying member 6 needs to be disposed not at the front end portion or the middle portion of the pipe portion 31 of the flow path partition member 3 but at the rear end portion. That is, in the region where the rectifying member 6 is attached in the pipe portion 3, the flow path inner diameter becomes small and the cross-sectional area of the flow path becomes small. For this reason, if the rectifying member 6 is attached to the first half of the pipe portion 31 (downstream of the first center flow path A1), the vortex flow disappears, but hot water escapes the pipe portion 31 in a state where the flow velocity is high, and the valve chamber 4 Flow into. Then, the hot water having a high flow velocity changes direction in the valve chamber 4, so that turbulent flow is likely to occur, the meaning of rectification is lost, and the flow rate is also reduced. When the rectifying member 6 is attached to the front end portion or the intermediate portion of the pipe portion 31 as described above, a new problem of turbulence occurs although the vortex flow disappears.

  Therefore, when the rectifying member 6 is attached to the rear end portion (upstream end portion) of the pipe portion 31 as in the present embodiment, the first center from the time when the rectifying member 6 is pulled out until the valve chamber 4 is reached. The distance of the flow path A1 can be secured sufficiently long. Since the rectifying member 6 is not disposed in the first center flow path A1 after the rectification, the cross-sectional area of the flow path is large and the flow rate of hot water can be reduced. Therefore, although the flow rate temporarily increases as hot water passes through the rectifying member 6, the flow rate can be appropriately reduced while passing through the first center flow path A1 after rectification. Thus, after sufficiently reducing the flow velocity, hot water can be introduced into the valve chamber 4 to change the direction, and the occurrence of turbulent flow can be reliably prevented.

  In the present embodiment, the straightening member 6 adjusts the length in the axial direction to 1/2 to 1/8 with respect to the length in the axial direction of the pipe portion 31 of the partition member 3. It is preferable to adjust to 1/3 to 1/6. That is, when the length of the rectifying member 6 is too long, the flow velocity becomes too fast and turbulence may occur. On the contrary, when the length of the rectifying member 6 is too short, the rectifying action cannot be sufficiently exhibited, and the eddy current may not be lost.

  In the present embodiment, an axial direction flow path is constituted by the first and second center flow paths A1 and A2.

  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 at a low flow rate is substantially the same as that on the right 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 (periphery 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.

  Furthermore, in the present embodiment, since the flow dividing portions 58 and 58 are formed at positions corresponding to the lattice members 941 and 941, the hot water is divided so as to avoid the lattice members 941 and 941 when pouring hot water. Since the water is diverted by the portions 58 and 58, hot water can be prevented from coming into contact with the lattice members 941 and 941 vigorously. For this reason, it is possible to prevent hot hot water from bouncing back at the lattice members 941 and 941 and changing its direction to the shape memory spring 55 or the like, and at the time of normal hot water before the temperature in the bathtub reaches the specified temperature. 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, since the rectifying member 6 is disposed in the pipe portion 31 of the flow path partition member 3, the hot water is rectified by passing through the rectifying member 6 and is swirled. Disappears and the flow of hot water is not biased, and is discharged from the discharge ports 45 and 45 in a rectified state. Since the flow of hot water discharged in this way is stable, a sufficient flow rate can be secured and the detection accuracy by the shape memory spring 55 can be improved.

  In particular, when two discharge ports 45 are formed as in the present embodiment, there is no variation in flow rate or flow velocity between the two discharge ports 45 and 45, and the two discharge ports 45 and 45 are evenly distributed. In such a state, hot water can be discharged, and the above effect can be obtained more reliably.

  Furthermore, in this embodiment, since the rectification member 6 is fitted and attached to the pipe part 31 of the flow path partition member 3, the rectification member 6 can also be attached to an existing hot-water supply device later, which is an excellent general purpose It has a sex.

  Further, according to the hot water supply device of the present embodiment, hot water discharged from the discharge ports 45 and 45 can be dispersed outward when the flow rate is high, and without being dispersed when the flow rate is low. It is possible to make it flow downward in a collective state. For this reason, regardless of the flow rate of hot water, hot water exceeding the required amount is reliably guided to the shape memory spring 55 side in an emergency such as when high-temperature tapping is performed when hot water is poured. 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 side partition walls 56, 56 and the filter front wall 92. Except when necessary, hot water of a required amount or more is supplied from the gap to the side partitions. It does not flow into the walls 56, 56, and it can be prevented that the shape memory spring 55 detects 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.

  Moreover, in the said embodiment, although the case where this invention was applied to the hot-water supply tool which only supplies the hot water from a water heater in a bathtub was mentioned as an example, it was not restricted to it, In this invention, in a bathtub The hot water can be sucked back into the water heater, and can also be applied to a circulating hot water adapter that supplies hot water from the water heater into the bathtub.

  Further, in the above-described embodiment, the case where four rectifying plates 63 of the rectifying member 6 are provided has been described as an example. However, in the present invention, the configuration of the number of rectifying plates, the arrangement position, the shape, and the like is described in the above-described embodiment. It is not limited to only those. For example, three or less current plates may be formed, or five or more current plates may be formed, or the current plates may be formed in a vertical stripe shape, a horizontal stripe shape, or a lattice shape in a front sectional view instead of a radial shape. good. In the present invention, the rectifying member only needs to have at least one rectifying plate disposed along the axial direction.

  Moreover, in the said embodiment, although the rectification | straightening member 6 is provided in the pipe part 31 of the flow-path partition member 3, the installation position of a rectification | straightening member is not limited in this invention. For example, in this invention, you may install a rectification | straightening member in the inner cylinder part (pipe connection part) 11 of the tank outer attachment member 1. FIG. That is, in the present invention, the rectifying member 6 is a center flow path (axial direction flow path) constituted by the pipe portion 31 of the flow path partition member 3 and the inner cylinder portion (pipe connection portion) 11 of the outside-tubing attachment member 1. Suffices to be provided upstream of A1 and A2.

  Moreover, in the said embodiment, although the outer tube connection part 13 of the tank outer attachment member 1 is arrange | positioned so that the shaft center may be arrange | positioned substantially at right angles with respect to the shaft center of the pipe part 31 of the flow-path partition member 3, it is only that. The present invention is not limited, and the present invention is not limited as long as the hot water can change its direction even a little on the upstream side of the axial flow paths A1 and A2, for example, in front of the pipe portion 31 (downstream side). It can also be applied to a hot spring.

  The bathtub water heater of the present invention can be applied to, for example, a general household bathtub.

1: Outside tank attachment member 11: Inner cylinder part (pipe connection part)
13: Outer pipe connection part 3: Channel partition member 31: Pipe part 42: Valve casing body (casing part)
43: Valve casing lid (casing part)
45: Discharge port 55: Shape memory spring (shape memory member)
6: Rectifying member 61: Cylindrical body 63: Rectifying plate 9: Filter (cover member)
A1: 1st center flow path (axial center direction flow path)
A2: Second center flow path (axial center direction flow path)
H: Mounting hole W: Side wall of bathtub

Claims (9)

A linearly extending pipe portion is disposed in a penetrating manner on the side wall of the bathtub, and is connected to the pipe portion, and has a discharge opening that opens into the bathtub,
An outside-tubing attachment member having a pipe connection portion communicating with the upstream end portion of the pipe portion, and a pipe-like outer tube connection portion communicating with the pipe connection portion disposed outside the bathtub,
When the flow path constituted by the pipe part and the pipe connection part is an axial direction flow path, the rectifying plate is provided on the upstream side of the axial direction flow path and arranged along the axial direction. A rectifying member having
Hot water introduced into the axial flow path from the outside of the bathtub through the outer pipe connecting portion changes direction and is discharged from the discharge port through the rectifying member and the axial flow path. Bathtub tapping equipment characterized by having done. The rectifying member includes a cylindrical body that is fitted into the upstream end of the pipe portion in an adapted state,
The hot water supply device for bathtubs according to claim 1, wherein the current plate is provided inside the tubular body .   In a state in front view as viewed from the downstream side along the axis of the pipe portion, the rectifying plates are arranged radially inside the cylindrical body, and a plurality of rectifying plates are arranged at equal intervals in the circumferential direction. The bathtub water heater according to claim 2.   The hot water supply device for a bathtub according to any one of claims 1 to 3, wherein the outer pipe connecting portion has an axial center disposed substantially perpendicular to the axial center of the pipe portion.   The hot water supply device for bathtubs according to any one of claims 1 to 4, wherein two discharge ports are formed so as to be positioned on both sides of the pipe portion in a front view state. A casing portion that is connected to the downstream end portion of the pipe portion is provided.
The hot water supply device for bathtubs according to claim 2 or 3, wherein the discharge port is formed in a peripheral wall of the casing portion.   The hot water supply device for bathtubs according to claim 6, wherein the discharge port is disposed downward. A shut-off valve that closes the discharge port during operation and stops the supply of hot water;
The shape memory member which is arrange | positioned in the one side in the downstream of the said discharge outlet, and operates the said shut-off valve when the hot water more than predetermined | prescribed temperature is sensed is provided in any one of Claims 1-7 The bathing utensil as described. A pipe part extending in a straight line is arranged in a penetrating manner on the side wall of the bathtub, and has a discharge partition opening in the bathtub and communicating with the pipe part, and an upstream end of the pipe part And a pipe-like outer pipe connecting portion that communicates with the pipe connecting portion, and is disposed outside the bathtub, and the outer pipe connecting portion from outside the bathtub. The hot water introduced into the pipe connecting part through the rectifying member of the hot water supply device for the bathtub, which is changed in direction and discharged from the outlet through the pipe part,
A rectifying member for a hot water supply device for a bath tub, comprising a rectifying plate provided at an upstream end portion of the pipe portion and disposed along an axial direction.

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