JP5978546B2 - Water-saving device for shower facilities - Google Patents

Description

  The present invention relates to a water-saving device for shower equipment, and more particularly, attached to the shower equipment to save water and a mixed water of hot water (hereinafter referred to as hot water) when using the shower, and remains in the shower head and the like when the shower is finished. The present invention relates to a water-saving device for shower facilities that automatically discharges hot and cold water to the outside.

In recent years, it has become difficult to secure water resources. In particular, in summer, the amount of water used increases while the amount of rainfall decreases, so water shortages have become a serious social problem.
As a countermeasure, corporations that supply tap water call for water conservation in ordinary households in the summer to save water. In addition, equipment manufacturers have proposed various types of water-saving devices that can save water by being attached to faucets.

  For example, Japanese Patent No. 4100653 (Patent Document 1) describes an invention of a flow control valve that uses a water control piece and can handle various flow control by this water control piece. Japanese Patent Application Laid-Open No. 2011-33133 (Patent Document 2) describes an invention of a flow rate regulator capable of adjusting a flow rate so that even an unskilled worker can easily obtain a desired discharge state. .

  On the other hand, there has been proposed a drainage device attached to the shower facility to discharge hot water remaining in the shower hose. For example, Japanese Patent Application Laid-Open No. 9-56628 (Patent Document 3) describes an invention of a shower apparatus provided with a drain valve that discharges hot water remaining in a shower hose after shower use. Further, Japanese Utility Model Publication No. 4-62186 (Patent Document 4) discloses a water drain plug that closes the drainage port when the feedwater pressure is applied in the middle of the hose and opens the drainage port when the feedwater pressure is released. The idea of the shower hose with the water drain provided is described.

Japanese Patent No. 4100653 JP 2011-33133 A JP-A-9-56628 Japanese Utility Model Publication No. 4-62186

  As described in Patent Documents 1 and 2, a water-saving device is a known device, and as described in Patent Documents 3 and 4, a water draining device is already known. It is an instrument. However, these devices have never been used side by side. The reason for this is that when a conventional water-saving device is installed in the shower facility, the water flow decreases due to the water-saving effect of the water-saving device, the momentum of the hot water blown from the shower head is weakened, and the shower function is reduced.

  Therefore, measures to save water in shower facilities include the use of a so-called water-saving shower head that modifies the shower head and saves water by reducing the diameter of the discharge (blowing) holes compared to conventional shower heads. ing. However, when such a water-saving shower head is used, a certain amount of water can be saved, but the amount of water saved depends on the type of the water-saving shower head, and the desired water-saving effect cannot be expected depending on the place where it is used. Sometimes.

  As a countermeasure, a water-saving shower head and a water-saving device can be installed. However, the adjustment of water saving between the water-saving shower head and the water-saving device becomes cumbersome and the adjustment may not be successful. The head may become unusable. In particular, in high-rise buildings, the water pressure on the high, middle and low floors is different, so it is necessary to make adjustments according to the water pressure on each floor, so it is extremely difficult to install a water-saving shower head and water-saving equipment. Become.

  As described above, the water-saving shower head can save water to some extent. On the other hand, when the shower ends, hot water may accumulate in the shower head and the shower hose and remain without being discharged. In particular, since the water-saving shower head has a smaller diameter of the discharge hole than the conventional shower head, hot water is hardly discharged from the discharge hole and often remains. If hot water remains in the shower head or the like, the remaining hot water may gradually flow out of the shower head and wet the surrounding bathroom or basin.

  For example, in a hotel or the like, when a customer checks out, the room starts to be cleaned immediately, and the bathroom is cleaned in a short time to welcome new customers. However, customers who enter the cabin may complain that they have not been cleaned when they see water in the basin or bathroom. The cause of this water accumulation is that hot water accumulated in the shower head and shower hose gradually leaks from the shower head over time.

  Moreover, the shower device provided with the drain valve described in Patent Document 3 and the shower hose with a drain valve described in Patent Document 4 have not been used together with a water-saving device until now. There are also the following potential problems. In other words, the shower device provided with the drain valve described in Patent Document 3 is provided with an accommodation hole for accommodating the valve body on the side surface of the joint, and its inner end surface projects into the flow path. It can be cumbersome and this protrusion can interfere with the flow of hot water. In addition, since there is only one circular hole in the receiving hole, the flow rate of hot water is limited, and the flow path for residual water becomes two places, this circular hole and notch, so that the residual water can be discharged smoothly. There is a risk of not becoming.

  Further, in the shower hose with a water drain plug described in Patent Document 4, the water drain part protruding sideways from the middle part in the longitudinal direction of the pipe-shaped main body part is a water drain plug. For this reason, all the parts that make up the drain plug, that is, the spring, valve seat surface, ball, and stopper must all be accommodated from the through-hole of the pipe-shaped body, so the drain section is formed and the drain plug is assembled. , Adjustment and maintenance are extremely troublesome. Therefore, the shower device provided with the drain valve described in Patent Document 3 and the shower hose with drain valve described in Patent Document 4 are extremely difficult to be made of metal having rigidity due to their structure. there were.

The present invention has been made to solve the above-described problems of the prior art. That is, an object of the present invention is to provide a water-saving device for a shower facility that automatically discharges hot water remaining in a shower head or the like to the outside at the end of a shower while saving hot water when using a shower.
In addition to the above object, another object of the present invention is to provide a water-saving device for shower equipment that can easily adjust water-saving while confirming the amount of water discharged from the shower head.
Furthermore, another object of the present invention is to provide a water-saving device for shower equipment that can make a member constituting the device from a rigid material such as a metal, improve durability, and can be easily assembled and manufactured.

The above object of the present invention can be achieved by the following configurations. That is, the water-saving device for shower equipment according to one aspect of the present invention is:
A water-saving device that saves hot water when using the shower, and a shower drainage device that discharges hot water remaining in the shower head and shower hose to the outside when the shower ends.
The water-saving device comprises a water-saving plate provided with at least one water-saving hole,
The shower drainage device includes a cylindrical body having openings at both ends, a water passage hole inside, and a housing hole communicating with the water passage hole in a part of the side wall, and Contains a drain valve that closes the drain port when a supply water pressure is applied to the accommodation hole, and opens the drain port when the supply water pressure is released;
The shower hose is connected to one of the openings,
The other of the openings is connected to a mixing faucet for supplying hot water to the shower head .

  According to the water-saving device for a shower facility according to one aspect of the present invention, hot water can be saved when the shower is used, and hot water remaining in the shower head and the shower hose can be automatically discharged to the outside at the end of the shower. Because the water-saving device is incorporated in the shower drainage device, it is possible to provide a compact and inexpensive water-saving device for shower equipment with a small number of parts.

It is the schematic of the shower installation in which the water-saving apparatus for shower facilities which concerns on the reference example of this invention is installed. It is sectional drawing which cut | disconnected the water saving apparatus for shower facilities of FIG. 1 on the centerline of a longitudinal direction (in an upright state, an upright direction). The water saving tool which comprises the water saving apparatus for shower facilities of FIG. 2 is shown, FIG. 3A is sectional drawing, FIG. 3B is a side view of the 1st cylindrical body closing wall which comprises a water saving tool. FIG. 4A is a sectional view, FIG. 4B is a left side view of FIG. 4A, and FIG. 4C is a right side view of FIG. 4A. It is sectional drawing of the shower drainage tool which comprises the water saving apparatus for shower facilities of FIG. The drain valve which comprises the shower drainage device of FIG. 5 is shown, FIG. 6A is a side view, FIG. 6B is a top view, FIG. 6C is a rear view. The valve cover body which comprises the shower drainage device of FIG. 5 is shown, FIG. 7A is a side view, FIG. 7B is a top view, FIG. 7C is a rear view. FIG. 8A is a cross-sectional view of a water-saving device for shower facilities according to an embodiment of the present invention, and FIG. 8B is a side view.

  Embodiments of the present invention will be described below with reference to the drawings. However, the embodiment described below exemplifies a water-saving device for a shower facility for embodying the technical idea of the present invention, and is not intended to specify the present invention. The invention is equally applicable to other embodiments within the scope of the claims.

[Reference example]
With reference to FIGS. 1-7, the water-saving apparatus for shower facilities which concerns on the reference example of this invention is demonstrated.

  As shown in FIG. 1, a water-saving device 2 for a shower facility according to a reference example of the present invention is used by being attached to the shower facility 1.

  A shower facility 1 shown in FIG. 1 is a general shower facility, and is mixed with a mixing faucet 10 that mixes and discharges cold water and hot water, and sprinkles the temperature-controlled hot water connected to the mixing faucet. And a shower head 16. In this shower facility 1, the shower facility water-saving device 2 has one end coupled to the mixing tap 10, the other end connected to the shower hose 15, and the shower hose 15 coupled to the tip of the shower head 16. ing. The shower head 16 is usually used by being hung on a hanging member 17 attached to a wall surface of a bathroom.

  The mixing faucet 10 is attached to the wall surface of the bathroom, and one end is connected to the hot water supply device 11 and the other end is connected to the cold water supply device 12. The hot water supply device 11 and the cold water supply device 12 are coupled to the hot water supply source and the cold water supply source by pipes 11A and 12A, respectively.

  This shower facility 1 operates hot water supply device 11 and cold water supply device 12 to adjust the temperature of the hot water, and discharges hot water from nozzle 14 or shower head 16 by switching handle 13. At this time, hot water adjusted by the shower facility water-saving device 2 is sprinkled from the shower head 16 when the shower is used, and remains in the shower head 16 and the shower hose 15 from the shower facility water-saving device 2 at the end of the shower. Hot water is automatically discharged to the outside.

  As shown in FIG. 2, the water-saving device 2 for the shower facility includes a water-saving device 3 that saves hot water when the shower is used, and a shower that automatically discharges hot water remaining in the shower head 16 and the shower hose 15 when the shower is finished. And a drainage tool 4.

  First, the water-saving tool 3 which comprises the water-saving apparatus 2 for shower facilities is demonstrated with reference to FIGS. The water-saving device 3 is formed of a cylindrical body having a predetermined length with one end closed by a closing wall 31 and the other end opened, and the inside being hollow, and a first portion penetrating the closing wall 31 in the center of the closing wall 31. An attachment hole 31b (see FIG. 2) and first water passage holes 31c and 31c ′ (see FIG. 3) for passing a predetermined amount of hot water consisting of openings of a predetermined area are provided around the first attachment hole 31b. The adjusted cylindrical body (hereinafter referred to as the first cylindrical body) 30 and an insertion portion into which one end is opened and the first cylindrical body 30 is inserted using the opening as an insertion port. The other end is open and the inside of the connecting cylinder 35 has a predetermined length (hereinafter referred to as a second cylinder) 35 and the surface of the closing wall 31 of the first cylinder 30. Then, the second mounting hole 38a communicating with the first mounting hole 31b and the first water flow holes 31c, 31c ′ are opened around the second mounting hole 38a. Was closed in a predetermined range or open water to pass through a second water passage hole 38d, it is provided with a water-saving plate 38 having 38d '(see FIG. 4), a.

  The first cylindrical body 30 is a circular cylindrical body having a predetermined length whose one end is closed by a closing wall 31, the other end is open, and the inside is hollow, and is formed of a metal material. This metal material is preferably free-cutting brass (BsBM / C3604BD), for example. The first cylindrical body 30 made of metal is preferably metal-plated, for example, chrome-plated, on the outer wall surface. By producing the first cylindrical body 30 from a metal material and plating it, the mechanical strength is high, the durability is improved, and a high-class feeling can be created. In addition, although the example which produced the 1st cylindrical body 30 with the metal material was shown here, it is not limited to this, You may produce the 1st cylindrical body 30 with the resin material.

  As shown in FIGS. 2 and 3, the internal hollow hole 32 is a water passage hole through which hot water passes. Further, on the outer peripheral wall surface on the side of the closing wall 31, there are formed a recessed groove 33 a having a depth and width that are large enough to mount the packing, and a guide recessed groove 33 b for guiding the fixing screw 35 </ b> A. In addition, the end part of the 1st cylindrical body 30 becomes the flange part 31a which approached the closing wall 31 and the recessed groove 33a by formation of this recessed groove 33a.

  The closing wall 31 is provided with a first mounting hole 31b of a predetermined size penetrating through the wall at the center, that is, on the longitudinal axis, and first water flow holes 31c and 31c ′ around the mounting hole. It has been. The attachment hole 31b is sized to allow the fixing tool 34A to be inserted, and the first water passage hole, that is, the two water passage holes 31c and 31c ′, respectively, has a predetermined opening as shown in FIG. 3B. It has an area and is arranged symmetrically about the mounting hole 31b.

  The shape of the two water passage holes 31c and 31c ′ is the same shape, and has a large opening having a large opening area and a hole shape having a small opening gradually reducing the opening area from the large opening, in other words, the head. The part is a large opening, and the tail that protrudes from the head is a small opening. With this shape, it is possible to finely adjust the amount of water flow between the water saving holes of the water saving plate 38. Note that the two water passage holes 31c and 31c ′ are not limited to the above shape, and may be formed in other shapes. Note that. As shown in FIG. 2 and FIG. 3A, the fixing tool 34A is composed of a bolt having a predetermined length and thickness from the head to the end, and this bolt is inserted into the mounting hole, For example, a nut is fixed.

  As the packing 34B (see FIG. 2) mounted in the recessed groove 33a, it is preferable to use a ring packing having a U-shaped cross section, so-called U-packing (NBR / hardness 70 °, suitable for food). By using this U-shaped ring packing, it is possible to prevent water leakage between the first cylindrical body 30 and the second cylindrical body 35 and to smoothly rotate the first cylindrical body 30. This type of packing has an O-shaped ring packing, but if this is used, the degree of sealing will be good, but it may be difficult to rotate the cylindrical body, making it difficult to rotate. A U-shaped ring packing is preferable because the member may be damaged when turned.

As shown in FIGS. 2 and 3, the second cylindrical body 35 is a circular cylindrical body having a predetermined length that is open at both ends and hollow inside, and is formed of a metal material. This metal material is formed of the same material as the first cylindrical body 30.
The second cylindrical body 35 is formed with a hollow hole 36 from an opening at one end toward the other opening end, and the hollow hole 36 is a portion of the cylindrical portion of the first cylindrical body 30. Is inserted into the inner diameter φ1 (symbol not shown) of the medium diameter cylindrical part A, the inner diameter φ2 (symbol not shown) of the small diameter cylindrical part B in which the water-saving plate 38 is positioned, and the inner diameter of the intermediate diameter cylindrical part A It is divided into substantially the same medium diameter φ3 (symbol not shown) and the medium diameter cylindrical portion C, and the boundaries of the sections in the hollow hole 36 are connected by a step having a predetermined height. The diameter of the hollow hole is φ1 = φ3> φ2.

  The medium-diameter cylindrical portion A has a hollow hole 36 having an inner diameter into which a portion of the cylindrical portion of the first cylindrical body 30 is inserted, and a wall surface on which the flange portion 31a of the first cylindrical body 30 abuts. The packing 34B has an inner wall surface in sliding contact. In addition, a scale (not shown) is formed on the outer peripheral wall surface, and a lock hole 35a that stops the rotation of the first cylindrical body 30 is formed through the outer peripheral wall surface. By providing this scale, the amount of rotation of the first cylindrical body 30 can be confirmed from the outside in combination with an indication (not shown) such as an arrow provided on the outer peripheral wall surface of the first cylindrical body 30. Can do. A fixing screw 35A is screwed into the lock hole 35a, and the first cylindrical body 30 can be prevented from rotating by adjusting the fixing screw 35A. The fixing screw 35A serves as a locking unit that locks the rotation of the first cylindrical body 30, but the locking unit is not limited to this, and a known locking unit may be used.

  As shown in FIG. 3A, the small-diameter cylindrical portion B of the second cylindrical portion 35 is provided with a projection 37 for fitting and positioning the water-saving plate 38 in the hollow hole 36 of this portion. In other words, the protrusion 37 is a convex protrusion that protrudes from the inner peripheral wall of the hollow hole 36 toward the central axis side by a predetermined height. The convex protrusion 37 narrows the inner diameter of the hollow hole 36 as compared with other portions, and a water-saving plate 38 is fitted into the narrowed portion.

  As shown in FIG. 4, the water-saving plate 38 is made of a disk-shaped metal plate having a predetermined diameter and thickness, and is manufactured by press working. The metal is preferably stainless steel. The water-saving plate 38 has a shallow dish shape that is recessed by a predetermined depth toward the center part with a little outer peripheral edge. By this pressing, the outer peripheral edge becomes a flange 38c and the other part becomes a dish bottom. The dish bottom 38b has a second mounting hole 38a penetrating the bottom plate at the center thereof and left and right of the mounting hole 38a. Second water passage holes 38d and 38d 'having a predetermined area are formed. When the first water passage holes 31c, 31c ′ and the second 38d, 38d ′ overlap, the water flow amount becomes maximum, and the water flow amount gradually decreases as this position shifts.

  In assembling the water-saving device 3, first, the water-saving plate 38 is fitted into the hollow hole 36 of the second cylindrical body 35 and positioned and fixed. Next, the first tubular body 30 is inserted from the opening of the tubular body 35, and the closed wall 31 is opposed to the water-saving plate 38. Thereafter, the second mounting hole 38a of the water-saving plate 38 and the first mounting hole 31b of the first cylindrical body 30 are aligned, and the bolts of the fixing tool 34A are inserted into these holes, and the bolts are inserted at the tip portions of the bolts. Secure the stopper, ie the nut. At this time, the first cylindrical body 30 is rotatably fixed to the water saving plate 38. Thereby, each opening of 1st water flow hole 31c, 31c 'and 2nd water flow hole 38d, 38d' opposes.

  By rotating the first cylindrical body 30 by this assembly, the opening areas of the first water passage holes 31c and 31c ′ and the second water passage holes 38d and 38d ′ are changed to adjust the amount of water flow. Is done.

  According to this water-saving device 3, since the first and second cylindrical bodies 30, 35 are coupled via the water-saving plate 38, both the cylindrical bodies 30, 35 are made of a rigid material such as a metal material. it can. Thereby, the water-saving tool 3 can express a high-class feeling while the cylindrical body (housing) improves durability and design. In addition, since the first and second water passage holes 31c and 31c 'are provided around the central first and second mounting holes, the water passage is distributed without being biased, and the usability is improved.

  Further, by rotating the first cylindrical body 30, it is possible to easily variably set the amount of water saving or outflow while confirming the amount of water saving from the outside. Moreover, since the protrusion 37 is provided in the 2nd cylindrical body 35 and the water saving board 38 can be positioned using this protrusion 37, the water saving board 38 can be fixed with a simple structure. Furthermore, since the display and lock means are provided, the variable setting of water saving is simplified, and the set state can be locked.

  Next, the shower drainage device 4 will be described with reference to FIGS. 2 and 5 to 7. As shown in FIG. 5, the shower drainage device 4 has a water passage comprising openings 41 a and 41 b having openings of predetermined diameters at both ends, and through holes of a predetermined diameter communicating with these openings and passing hot water therein. A hole 42 and a receiving hole 43 that passes through a part of the side wall of the substantially central portion in the longitudinal direction (upright direction in the standing state), communicates with the water passage hole 42, and accommodates the drain valve 45 therein. The drainage cylindrical body 40 (hereinafter, referred to as a third cylindrical body) is made of a rigid material such as a metal material.

  Of the openings 41a and 41b at both ends, a coupling means 41a ′ coupled to the water saving device 3 is provided on one opening 41a side, and a coupling means 41b ′ coupled to the shower hose 15 is provided on the other opening 41b. ing. One coupling means 41a ′ is a male screw carved on the outer peripheral wall surface, and the other coupling means 41b ′ is a female screw carved on the inner peripheral wall surface. The coupling means for the first and second openings is a screw, but is not limited to this, and any known coupling means such as a one-touch coupling means may be used.

  The water passage hole 42 made of a through hole has substantially the same inner diameter and is not provided with protrusions on the inner wall surface. Therefore, for example, compared to the shower device of Patent Document 3, there is less water resistance and smooth passage. Can be watered.

  The accommodation hole 43 is formed in a columnar portion 44 in which a part of the side wall is raised and bulged outward. This columnar portion is formed of a substantially cylindrical body, the diameter is larger than the diameter of the head of the drain valve 45 described later, the height is higher than the height of the drain valve, and the base 44a is raised and bulged from the side wall. The head 44b is a flat surface. The accommodation hole 43 is formed as a through hole having an inner diameter that is gradually reduced from the flat surface of the head 44b of the columnar portion toward the base 44a. The through hole extends from the flat surface of the head toward the base. Thus, a large-diameter hole 43a having the largest diameter, a medium-diameter hole 43b having a diameter slightly smaller than this diameter, and a small-diameter hole 43c having a smaller diameter are formed.

  The large-diameter hole portion 43a has a size for mounting the valve cover body 46, that is, an inner diameter and a depth, and a female screw is formed on the inner wall surface. The medium-diameter hole 43b has a size that allows a head 45a of a drain valve 45, which will be described later, to be inserted therethrough and freely move. Further, the small diameter hole portion 43 c is an opening hole having a diameter slightly smaller than the diameter of the head 45 a of the drain valve 45 and communicates with the water passage hole 42. This opening hole, that is, the small diameter hole portion 43c has a diameter smaller than the diameter of the head 45a of the drain valve 45 when the drain valve 45 is inserted from the large diameter hole 43a. The portion 45a does not jump out to the water passage hole 42, and serves as a valve port, that is, a water drain port for discharging hot water in the water passage hole 42 to the outside. This water drain port is closed by the head of the water drain valve 45 when a water supply pressure is applied in the water passage hole, and is opened, that is, opened when the water supply pressure is released. . This action is performed by a coiled spring attached to the drain valve 45.

  As shown in FIG. 6, the drain valve 45 includes a disc-shaped head 45a having a predetermined diameter and thickness, a short neck 45b that is connected to the head and is slightly smaller in diameter than the head diameter, A body 45c having a predetermined length slightly smaller than the diameter of the head connected to the neck, and a leg 45d connected to the body and having a diameter slightly smaller than the diameter of the body and extending downward by a predetermined length. The overall shape is a rod-shaped body having a substantially bolt shape in a side view, and is formed of a metal material. On the outer peripheral wall surface of the head portion 45a, a plurality of notch grooves 45a ′ are formed at substantially equal intervals by notching the wall surface to a predetermined depth.

  These notch grooves 45a 'serve as drain grooves when discharging residual water to the outside. Since the plurality of drain grooves are arranged at substantially intervals, the remaining water can be discharged to the outside more efficiently than, for example, the shower device of Patent Document 3. Since the head 45a and the neck 45b have different diameters, a step is formed at the boundary, and one end of the coiled spring is provided at the step, that is, the step serves as a stopper for restricting the movement of the coiled spring. Further, a step is also formed at the boundary between the trunk portion and the leg portion, and the O-ring is brought into contact with this step, that is, the step serves as a stopper for restricting the movement of the O-ring.

  The leg portion 45c is a columnar body that is slightly smaller in diameter than the body portion and extends downward for a predetermined length, and its diameter is slightly smaller than the diameter of the drain hole 47 (see FIG. 7) of the valve cover body 46 described later. , The length of this cover is shorter than the wall thickness.

  As shown in FIG. 7, the valve cover body 46 is formed of a disk-like body having a diameter and a thickness that is embedded and fixed in the large-diameter hole 43a (see FIG. 5) of the third tubular body 40. , A drain hole 47 consisting of a through hole in the central part, a fixing means 48 screwed to the female thread on the inner wall surface of the large diameter hole part 43a on the outer peripheral side wall surface, and an attaching or removing jig on the flat surface serving as the outer surface An engaging groove 49 to be engaged is provided. In addition, a recessed hole 50 is formed in the outer periphery of the drain hole 47. The opening of the recessed hole 50 has a circular shape, and one end of the coiled spring is positioned in this hole.

  To assemble the shower drainage device 4, first, a coiled spring and a ring packing are attached to the drain valve 45 and pushed into the accommodation hole 43 from the head 45 a side. Next, the valve cover body 46 is mounted and fixed in the large diameter hole 43a. For this attachment, a dedicated tool (not shown) having a claw is used, and the claw is inserted into the engaging groove 49 and fixed by screwing. According to this shower drainage device 4, when the water supply pressure is applied, the drain hole 47 is closed by inserting the leg portion 45d of the drain valve 45 into the drain hole 47, and when the water supply pressure is released, the drain hole 47 is closed. Water is discharged by opening the hole 47.

  The water-saving device 3 and the shower drainage device 4 assembled as described above are used and connected to assemble the water-saving device 2 for shower equipment. That is, the water-saving device 3 and the shower drainage device 4 are integrated by screwing and connecting to the joint portion 41 a ′ of the shower drainage device 4 with a joint portion provided in the hollow hole 36 of the water-saving device 3. In addition, although the example which used the screwing coupling means as a connection means of the water saving tool 3 and the shower drainage tool 4 was shown here, it is not limited to this, You may use another well-known connection means. . Of course, the water saving tool 3 and the shower drainage tool 4 can be used separately.

  The shower facility water-saving device 2 is attached to the shower facility 1 for use. The water saving adjustment is performed by turning the first cylindrical body 30 of the water saving tool 3. That is, when the first cylindrical body 30 is turned, the opening area of the water passage hole of the water saving plate 38 is changed, and the amount of flowing water is adjusted. This adjustment can be easily performed while observing the amount of blowout from the shower head 16. . This saves hot water when using the shower. At the end of the shower, the water supply pressure is released, so the drain valve 45 is opened, and the hot water remaining in the shower head 16 and the shower hose 15 is automatically discharged from the drain hole 47 to the outside.

[Embodiment]
Next, referring to FIG. 8, a water-saving device for shower facilities according to an embodiment of the present invention will be described. Although the water-saving device 2 for the shower facility in the reference example is obtained by connecting the water-saving device 3 and the shower drain device 4, the water-saving device for the shower facility in the embodiment includes the water-saving device 3 </ b> A in the shower drain device 4 in the reference example. It has a built-in configuration. And in the water saving apparatus for shower facilities of embodiment, the shower hose 15 (refer FIG. 1) is connected to one opening part 41b of opening part 41a, 41b, and the other opening part 41a is hot water to the shower head 16. Is connected to a mixing faucet 10 for supplying water.

  That is, the water-saving device for a shower facility according to the embodiment of the present invention has a configuration in which the water-saving device 3 </ b> A is constituted by a water-saving plate and this water-saving plate is incorporated in the hollow hole of the shower drainage device 4. According to this water-saving device for shower facilities, since the water-saving device is incorporated in the shower drainage device, it is possible to provide a compact and inexpensive water-saving device for shower facilities with a small number of parts.

DESCRIPTION OF SYMBOLS 1 Shower equipment 2 Water saving apparatus 3 for shower equipment 3, 3A Water saving tool 30 1st cylindrical body 31 Closing wall 31b 1st attachment hole 31c, 31c '1st water flow hole 35 2nd cylindrical body 37 Protrusion 38 Water saving plate 38a Second mounting holes 38d, 38d 'Second water through hole 4 Shower drainage device 40 Third tubular body 42 Water through hole 43 Housing hole 43c Drain port 45 Drain valve

Claims (1)

A water-saving device that saves hot water when using the shower, and a shower drainage device that discharges hot water remaining in the shower head and shower hose to the outside when the shower ends.
The water-saving device comprises a water-saving plate provided with at least one water-saving hole,
The shower drainage device includes a cylindrical body provided with openings at both ends, a water passage hole inside, and a housing hole communicating with the water passage hole at a part of the side wall, and the water-saving plate is provided at one of the openings. Contains a drain valve that closes the drain port when a supply water pressure is applied to the accommodation hole, and opens the drain port when the supply water pressure is released;
The shower hose is connected to one of the openings,
The other end of the opening is connected to a mixing faucet for supplying hot water to the shower head .