WO2005031203A1 - 流路切換バルブ及びシャワーシステム - Google Patents
流路切換バルブ及びシャワーシステム Download PDFInfo
- Publication number
- WO2005031203A1 WO2005031203A1 PCT/JP2004/014270 JP2004014270W WO2005031203A1 WO 2005031203 A1 WO2005031203 A1 WO 2005031203A1 JP 2004014270 W JP2004014270 W JP 2004014270W WO 2005031203 A1 WO2005031203 A1 WO 2005031203A1
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- WO
- WIPO (PCT)
- Prior art keywords
- valve
- temperature
- flow path
- fluid
- water
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/04—Water-basin installations specially adapted to wash-basins or baths
- E03C1/044—Water-basin installations specially adapted to wash-basins or baths having a heating or cooling apparatus in the supply line
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/021—Devices for positioning or connecting of water supply lines
- E03C1/023—Devices for positioning or connecting of water supply lines with flow distribution, e.g. diverters
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C2201/00—Details, devices or methods not otherwise provided for
- E03C2201/30—Diverter valves in faucets or taps
Definitions
- the present invention relates to a flow path switching valve and a shower system.
- the flow path switching valve includes a temperature-sensitive spring whose shape is reversibly changed in accordance with the temperature of the fluid flowing into the flow path switching valve, and a valve body biased by the temperature-sensitive spring.
- a load is applied to the valve body due to a change in the shape of the temperature-sensitive spring, the state in which the discharge port for the appropriate temperature fluid, which is a fluid within the predetermined temperature range, communicates with the flow path, and the state in which the temperature is out of the predetermined temperature range
- the valve body moves so as to switch between a state in which the discharge port for the unsuitable temperature fluid, which is a fluid of the temperature, communicates with the flow path.
- the above-described flow path switching valve does not allow the user to intentionally discharge the unsuitable temperature water from the shower head by his / her own will. For example, even when cold water is required in summer or hot water is required in winter, the user cannot discharge cold water or hot water from the shower head.
- Patent Document 2 discloses a shower system improved so that not only the appropriate temperature water for solving such a problem but also the inappropriate temperature water can be discharged from the shower head as needed.
- This shower system opens and closes the unsuitable temperature water escape mechanism to prevent the unsuitable temperature water from being discharged with the shower head power, the binos flow path provided to bypass the escape mechanism, and the bypass flow path. And a changeover valve.
- the bypass valve may be opened by operating the switching valve. Then, the unsuitable temperature water is discharged from the shower head through the bypass passage without passing through the escape mechanism.
- Patent Document 1 JP-A-10-299926
- Patent Document 2 JP 2003-24232 A
- a flow path switching valve includes a nozzle casing, a valve element, and a valve element driving unit.
- the nozzle casing includes a fluid supply port for supplying a fluid into the valve casing and a first discharge port for discharging a fluid having a temperature outside a predetermined temperature range supplied into the valve casing through the fluid supply port.
- a second discharge port for discharging a fluid having a temperature within a predetermined temperature range supplied to the valve casing through the fluid supply port, a first flow path connecting the fluid supply port to the first discharge port, and a fluid supply port.
- a first valve seat is provided corresponding to the hole, and a second valve seat is provided corresponding to the second valve hole.
- the valve body has a first position where the valve body contacts the first valve seat so as to close the first valve hole, and a second position where the valve body contacts the second valve seat so as to close the second valve hole. Move between.
- the valve body driving means arranges the valve body at the first position or the second position based on the temperature of the fluid. Part of the first flow path and part of the second flow path are common.
- the flow path switching valve further includes locking means for forcibly moving the valve body to the first position and holding the valve body at the first position.
- a shower system includes the above-described flow path switching valve, a hose, and a shower head.
- the shower head is connected to a first outlet of the flow path switching valve via a hose.
- the present invention also provides another flow path switching valve as described below.
- the flow path switching valve has a main body in which a flow path through which the fluid passes is formed, a water discharge hole opened in the main body so as to supply the fluid to a subsequent element, and a temperature of the fluid outside the predetermined temperature range. Either a drain hole opened in the main body to drain water when the temperature is high, a power channel housed in the flow channel and connected to the water discharge hole, or a channel portion connected to the drain hole is opened or closed A first temperature sensing element housed in the flow path to urge the valve element in a predetermined direction, and a flow element to urge the valve element in a direction opposite to the predetermined direction. A bias spring and a second temperature sensing element housed in the road.
- the urging forces of the first temperature sensing element and the second temperature sensing element each change according to the temperature of the fluid. If the temperature of the fluid is out of the predetermined temperature range, the sum of the biasing force of the bias spring and the biasing force of the second temperature-sensitive element exceeds the biasing force of the first temperature-sensitive element, so that the drain hole force also decreases.
- the valve body moves so that is drained.
- a handle for forcibly moving the valve element in the flow path is connected to the valve element. By operating the handle, the valve element moves so as to close the part of the flow path leading to the drain hole.
- FIG. 1 is a schematic view of a flow path switching valve according to a first embodiment disposed between a mixing faucet and a shower head.
- FIG. 2 is a cross-sectional view of the flow path switching valve shown in FIG. 1 in a state where appropriate temperature water is discharged.
- FIG. 3 is a cross-sectional view of the flow path switching valve shown in FIG. 1 in a state in which inappropriate temperature water is discharged.
- FIG. 4 is a cross-sectional view of the flow path switching valve shown in FIG. 1 in a state where inappropriate temperature water is discharged from a water discharge hole.
- FIG. 5 is a cross-sectional view of a flow path switching valve according to a second embodiment in a state where appropriate temperature water is discharged from a water discharge hole.
- FIG. 6 is a cross-sectional view of a flow path switching valve according to a second embodiment in a state of discharging inappropriate temperature water.
- FIG. 7 shows a flow path switching valve according to a second embodiment in a state where inappropriate temperature water is discharged from a water discharge hole. Sectional view.
- FIG. 8 is an exploded perspective view showing a latch mechanism for alternately opening and closing a drain hole and a water discharge hole of a flow path switching valve according to a second embodiment.
- FIG. 9 is a developed view of a part of the latch mechanism shown in FIG.
- FIG. 10 is a cross-sectional view of a flow path switching valve according to a third embodiment in a state where appropriate temperature water is discharged from a water discharge hole.
- FIG. 11 is a sectional view of a flow path switching vanoleb according to a third embodiment in a state where low-temperature unsuitable hot water is discharged.
- FIG. 12 is a cross-sectional view of a flow path switching vanoleb according to a third embodiment in which high-temperature unsuitable water is discharged from drain holes.
- FIG. 13 is a sectional view of a flow path switching valve according to a third embodiment in a state in which low-temperature inappropriate water is forcibly discharged.
- FIG. 14 is a cross-sectional view of a flow path switching valve according to a third embodiment in a state in which high-temperature unsuitable water is forcibly discharged from a water discharge hole.
- FIG. 15 is a graph showing temperature characteristics of first and second wax thermoelements.
- the flow path switching valve A is mounted, for example, between a mixing faucet 1 and a shower head 2 in a bathroom.
- a supply pipe 5 is connected to the mixing faucet 1 for adjusting the temperature and flow rate of the fluid water.
- the mixing faucet 1 is equipped with a switching valve 4, and the water whose temperature and flow rate have been adjusted is selectively supplied to either the supply pipe 5 or the discharge pipe 3 of the mixing faucet 1 by operating the switching valve 4. Is done.
- the supply pipe 5 is connected to the hose 6 via the flow path switching valve A.
- the shower head 2 is attached to the end of the hose 6.
- the flow path switching valve A, the shower head 2 and the hose 6 constitute a shower system.
- the flow path switching valve A includes a hollow main body 10.
- a first opening hole 12 is provided at one end (the lower end in FIG. 2) of the main body 10.
- the first lid member 24 is mounted in the first opening hole 12.
- the first lid member 24 has a hot water supply port 24b as a fluid supply port.
- a second opening 13 is provided at the other end (the upper end in FIG. 2) of the main body 10. Second opening 13
- a second lid member 25 is attached to the pod.
- the main body 10, the first lid member 24, and the second lid member 25 constitute a valve casing.
- the valve casing has a flow path 11 inside. The water supplied from the mixing faucet 1 to the supply pipe 5 flows into the flow path 11 through the hot water supply port 24b.
- the peripheral wall of the main body 10 is provided with a drain hole 15 as a first discharge port and a water discharge hole 14 as a second discharge port.
- a predetermined temperature range that is, when the temperature of the water from the mixing faucet 1 is an appropriate temperature
- the water from the mixing faucet 1 is discharged by the water discharge port 14 force.
- the temperature of the water from the mixing faucet 1 is out of the predetermined temperature range, that is, if the water from the mixing faucet 1 is not at an appropriate temperature
- the water from the mixing faucet 1 is discharged to the drain hole 15 force. You. That is, the water from the mixing faucet 1 is selectively discharged or discharged from one of the water discharge hole 14 and the drain hole 15 according to the temperature of the water.
- a temperature higher than 35 ° C and lower than 45 ° C is an appropriate temperature
- a temperature equal to or lower than 35 ° C or higher than 45 ° C is an inappropriate temperature.
- the water discharge hole 14 and the drain hole 15 are arranged at positions different from each other in the flow direction of the water flowing through the flow path 11. Specifically, the water discharge hole 14 is located downstream of the drain hole 15. Each of the water discharge hole 14 and the drain hole 15 communicates with the hot water supply port 24 b through the flow path 11. That is, the flow path 11 is composed of a first flow path (arrow indicated by a two-dot line in FIG. 3) from the hot water supply port 24b to the drain hole 15 and a second flow path (FIG. 2) from the hot water supply port 24b to the water discharge hole 14. ), A part of the first flow path and a part of the second flow path are common (overlapping).
- a first valve hole 33a is provided in the middle of the flow path 11 from the hot water supply port 24b to the drain hole 15.
- a second valve hole 33b is provided in the middle of the flow path 11 from the hot water supply port 24b to the water discharge hole 14.
- the first valve hole 33a and the second valve hole 33b are arranged at different positions with respect to the flow direction of the water flowing through the flow path 11. Specifically, the second valve hole 33b is located downstream of the first valve hole 33a.
- the flow channel 11 accommodates a substantially cylindrical valve element 16.
- An annular groove 17 extending in the circumferential direction is provided at the center of the outer periphery of the valve element 16.
- a seal member 18 is mounted on the annular groove 17 so as to be in close contact with the outer surface of the valve body 16 and the inner surface of the flow path 11.
- the valve element 16 has an annular first end face 19a positioned close to the first lid member 24 at one end (see FIG. 2). At the lower end) and an annular second end face 19b located near the second lid member 25 at the other end (the upper end in FIG. 2).
- the valve element 16 functions as a first position P1 shown in FIG. 2 where the first end face 19a of the valve element 16 contacts the upper end face of the first lid member 24 functioning as the first valve seat 24a, and as the second valve seat 25a.
- the second lid member 25 is movable between a second position P2 shown in FIG. 3 where the second end surface 19b of the valve body 16 contacts the lower end surface of the second lid member 25.
- the second valve hole 33b is opened. Therefore, the water from the mixing faucet 1 is discharged from the spout 14.
- the valve element 16 is located at the second position P2
- the first valve hole 33a is opened as shown in FIG. Therefore, the water from the mixing faucet 1 is discharged from the drain hole 15.
- the flow path 11 includes a first temperature sensing element 23a for urging the valve element 16 toward the first position P1 (toward the downstream side), and a flow path 11 toward the second position P2 (toward the upstream side).
- the second thermosensitive element 23b for urging the valve body 16 and the bias spring 22 are housed therein.
- the first temperature sensing element 23a and the second temperature sensing element 23b are coil springs made of a shape memory alloy, and deform so as to expand and contract in the axial direction according to the temperature of water from the mixing faucet 1. .
- the first thermosensitive element 23a located downstream (upper in FIG. 2) of the valve body 16 extends when the temperature of the water from the mixing faucet 1 is within a predetermined temperature range.
- the second thermosensitive element 23b located upstream (below in FIG. 2) of the valve body 16 extends when the temperature of the water from the mixing faucet 1 is within a temperature range different from the predetermined temperature range. . Therefore, the urging forces of the first temperature sensing element 23a and the second temperature sensing element 23b change according to the temperature of the water from the mixing faucet 1, respectively. On the other hand, the biasing force of the bias spring 22 disposed in the second temperature sensing element 23b is not affected by the temperature of the water from the mixing faucet 1.
- the noise spring 22, the first temperature-sensitive element 23a, and the second temperature-sensitive element 23b are valves that position the valve body 16 at the first position P1 or the second position P2 based on the temperature of the water from the mixing faucet 1. Configure the body drive means.
- One end (the lower end in FIG. 2) of the first temperature sensing element 23a is in contact with a flange 20 provided at the center of the inner periphery of the valve body 16.
- the other end (the upper end in FIG. 2) of the first temperature sensing element 23a is in contact with a plug 28 screwed to the second lid member 25.
- One end (the upper end in FIG. 2) of the bias spring 22 and the second temperature sensing element 23b is in contact with the flange 20.
- the other end (the lower end in FIG. 2) of the bias spring 22 and the second temperature sensing element 23b is in contact with the first lid member 24.
- the load applied to the valve body 16 by the first temperature sensing element 23a is less than the load applied to the valve body 16 by the bias spring 22 and the second temperature sensing element 23b.
- the urging force of the first thermosensitive element 23a for urging the valve element 16 toward the upstream side (downward in FIG. 2) applies the valve element 16 toward the downstream side (upward in FIG. 2). It is less than the sum of the biasing force of the biasing noise 22 and the biasing force of the second temperature sensing element 23b. Accordingly, the valve element 16 moves upwardly and is located at the second position P2 as shown in FIG.
- the urging force of the first temperature sensing element 23a that urges the valve body 16 downward is equal to the urging force of the bias spring 22 that urges the valve body 16 upward and the second temperature sensing element 23b. Below the sum of the biasing forces. Therefore, the valve element 16 moves upward and is located at the second position P2.
- the first temperature-sensitive element 23a When the temperature of the water passing through the flow path 11 is higher than 35 ° C. and lower than 45 ° C., only the first temperature-sensitive element 23a extends, and the second temperature-sensitive element 23b does not extend. In this case, the load applied to the valve body by the first temperature sensing element 23a exceeds the load applied to the valve body 16 by the bias spring 22 and the second temperature sensing element 23b. In other words, the urging force of the first temperature sensing element 23a that urges the valve body 16 downward is equal to the urging force of the bias spring 22 that urges the valve body 16 upward and the second temperature sensing element 23b. Exceeds the sum of the biasing forces. Therefore, the valve element 16 moves downward and is disposed at the first position P1 as shown in FIG.
- the second lid member 25 is substantially cylindrical and has a through hole 26 extending in the axial direction.
- a female screw portion 27 is provided on the inner peripheral surface of the through hole 26.
- the plug 28 has a male thread 29 corresponding to the female thread 27. A part of the plug 28 is inserted into the through hole 26 in a state where the male screw part 29 of the plug 28 is engaged with the female screw part 27 of the second lid member 25.
- a handle 31 is connected to the tip of the plug 28.
- the plug 28 has an annular support portion 30 on the inner periphery, and the upper end of the first temperature sensing element 23a is in contact with the support portion 30.
- the valve element 16 moves to the first position P1 and is held there. Is done.
- the plug 28 and the handle 31 force the valve body 16 to the first position P1 to move the valve body 16 to the first position P1.
- the holding means is configured.
- the water in the flow path 11 is discharged from the water discharge hole 14 through the second valve hole 33b and supplied to the hose 6.
- the appropriate temperature water having a temperature higher than 35 ° C and lower than 45 ° C is discharged from the shower head 2.
- the present embodiment has the following advantages.
- the flow path switching valve A shown in FIG. 1 a part of the first flow path for discharging the appropriate temperature water from the shower head 2 and a part of the first flow path for discharging the inappropriate temperature water from the shower head 2 Part of the second channel is common. Therefore, the flow path switching valve A is more compact than a case where the first flow path and the second flow path are provided completely separately.
- the first and second temperature sensing elements 23a and 23b made of a shape memory alloy expand and contract in accordance with the temperature of water from the mixing faucet 1 so that the valve body 16 can be operated without relying on electric power. Move. Therefore, the flow path switching valve A can be installed as long as the installation space is allowed, even in a place where power is not secured. In addition, since a power source is not required, the flow path switching valve A does not require a structure for preventing leakage. This contributes to downsizing and low cost of the flow path switching valve A.
- the valve element 16 can be moved without relying on electric power. According to the first temperature sensing element 23a and the second temperature sensing element 23b, no operating noise is generated when the valve element 16 is moved. .
- valve body 16 Since the valve element 16 is disposed in the flow path 11 in the valve casing, the space of the main body 10 can be saved, and the flow path switching valve A can be made more compact. . [0035] (5) Since the valve body 16 that guides water flowing from the hot water supply port 24b to the water discharge hole 14 is formed in a cylindrical shape, the valve body 16 can be lightweight. As a result, the responsiveness when the valve element 16 moves is improved, and the opening and closing of the water discharge hole 14 and the drain hole 15 can be quickly switched. Further, the light weight of the valve body 16 contributes to the weight reduction of the flow path switching valve A.
- a cylindrical body 38 is screwed to the second lid member 25 of the flow path switching valve A.
- Three protrusions 39 are formed on the inner peripheral surface of the cylindrical body 38 so as to extend in the axial direction at equal intervals.
- a vertical groove 40 is formed between these ridges 39.
- a serrated surface 41 is formed at the end of each ridge 39.
- a stopper portion 42 is formed by these saw tooth surfaces 41 so as to be located at an intermediate portion between the adjacent vertical grooves 40.
- An operation shaft 43 is inserted into the cylinder 38 so that the upper end surface force of the cylinder 38 also protrudes.
- the handle 31 is attached to the upper end of the operation shaft 43.
- a support hole 44 is formed at the center of the lower end of the operation shaft 43.
- a flange 45 is formed on the outer periphery of the lower end of the operation shaft 43.
- a coil spring 46 is interposed between the flange 45 of the operation shaft 43 and the cylinder 38. The operating shaft 43 is urged outward by the urging force of the coil spring 46.
- a rotating body 49 is inserted and supported in the support hole 44 of the operation shaft 43 so as to be relatively rotatable and relatively movable in the axial direction.
- a flange 50 is formed on the outer periphery of the center of the rotating body 49.
- On the outer peripheral surface of the flange portion 50 three engagement protrusions 51 which can be engaged with the vertical groove 40 and the stopper portion 42 of the cylindrical body 38 are provided at regular intervals.
- An end face of the flange portion 50 facing the flange portion 45 of the operation shaft 43 is engaged with a chevron cam surface 48 of the operation shaft 43.
- Six possible inclined surfaces 52 are formed at equal intervals.
- a rotating body 49 is inserted through and supported by a lower end portion of the cylindrical body 38 via a support cylinder 54 so as to be movable in the axial direction.
- the tip of the rotator 49 is disposed in the flow path 11 through a through hole 53 (see FIG. 7) formed in the second lid member 25, and is mounted on the end of the first thermosensitive element 23a. It can abut against the pressing plate 56.
- a pressing spring 55 is extrapolated to the rotating body 49.
- One end of the pressing spring 55 is locked to the flange 50 of the rotating body 49, and the other end is locked to the support cylinder 54.
- a pressing spring 55 urges the rotating body 49 so as to move outwardly, so that the inclined surface 52 of the rotating body 49 is engaged with the angled cam surface 48 of the operation shaft 43.
- the tip of the rotating body 49 is separated from the pressing plate 56, and the first thermosensitive element 23a is forcibly compressed from the outside.
- the valve body 16 is moved to the first position P1, and the first end face 19a of the valve body 16 is in the first valve seat on the first lid member 24. Sitting at 24a. Thereby, communication between the flow path 11 and the drain hole 15 is prevented, and communication between the flow path 11 and the water discharge hole 14 is allowed, so that the appropriate temperature water is discharged from the water discharge hole 14.
- the tip of the rotating body 49 is separated from the pressing plate 56, and the first thermosensitive element 23a flows from the mixing faucet 1 in a state where it is not forcibly compressed from the outside.
- the valve body 16 is moved to the second position P2, and the second end face 19b of the valve body 16 is moved to the second valve seat 25a of the second lid member 25.
- the water discharge hole 14 is closed and the drain hole 15 is opened, so that the appropriate temperature water is drained from the drain hole 15.
- the coil spring 46 The force by which the handle 31 and the operation shaft 43 are returned to the upper position by the urging force.
- the rotating body 49 is held at the lower position.
- the first temperature sensing element 23a is held in a compressed state by the pressing plate 56, and the valve body 16 is forcibly moved to the first position P1.
- the second valve hole 33b is kept open, and the unsuitable temperature water continues to be discharged from the water discharge hole 14.
- the pressing plate 56 is released from the pressed state, and the urging force of the bias spring 22 and the second temperature sensing element 23b moves the valve body 16 to the second position P2.
- the valve body 16 remains at the second position P2, and the first valve hole 33a is kept open. As a result, the unsuitable temperature water is discharged from the drain hole 15.
- the valve body 16 is held at the first position P1 to disable the functions of the temperature sensing elements 23a and 23b and the bias spring 22; Can be alternately switched to an unlocked state in which the holding of the keys is released and their functions are enabled. Therefore, it is possible to switch with one touch as compared with the case where the handle 31 is rotated to switch between the locked state and the unlocked state shown in the first embodiment.
- the plug 28, the handle 31, the operating shaft 43, the rotating body 49, the pressing spring 55, and the pressing plate 56 constitute locking means.
- a cylindrical housing case 60 is provided between the main body 10 and the first lid member 24.
- a first wax thermo-element 61 as a first thermo-sensitive element and a second wax thermo-element 62 as a second thermo-sensitive element are arranged in the housing case 60 at intervals on the upstream and downstream sides thereof. And are housed.
- Each of the wax thermoelements 61 and 62 includes piston rods 61a and 62a whose protruding amounts change in accordance with the volume of the wax that changes according to the temperature of the shower water.
- a valve casing is composed of the main body 10, the first lid member 24, and the second lid member 25.
- the piston rods 61a, 62a of the wax thermoelements 61, 62 face in opposite directions.
- the tip of the piston rod 62a of the second wax thermoelement 62 is supported at the center of the first lid member 24 through which shower water can pass.
- a guide cylinder 62b for guiding the piston rod 62a is formed near the center of the force storage case 60.
- the guide cylinder 62b is slidably inserted into the center of the guide portion 63 through which shower water can pass.
- the second wax thermoelement 62 is supported so as to be able to move up and down.
- the first wax thermoelement 61 is supported on the upper part of the second wax thermoelement 62 via the bias spring 22.
- the wax thermoelements 61 and 62 can be approached or separated from each other.
- a guide cylinder 61b for guiding the piston rod 61a of the first wax thermoelement 61 is screwed to the center of the valve body 16.
- the valve spring driving means is constituted by the noise spring 22, the first wax thermoelement 61 and the second wax thermoelement 62.
- the first valve seat 64a with which the first end face 19a contacts when the valve element 16 is located at the first position P1 is the end of the storage case 60.
- the second valve seat 64b with which the second end face 19b contacts is attached by a holding member 65 screwed to the second lid member 25. It is the periphery of the valve seat 66.
- a plug 67 to which the handle 31 is physically attached is screwed to the second lid member 25 so as to be able to advance and retreat.
- a relief coil spring 68 is housed in the internal space 67a of the plug 67.
- One end of the relief coil spring 68 is in contact with the inner deep portion of the internal space 67a, and the other end is engaged with a moving body 70 provided on an adjuster 69 screwed to a lower end surface of the plug 67.
- the relief coil spring 68 has a spring constant larger than that of the bias spring 22, and the biasing force can be adjusted by changing the screwing position of the adjuster 69.
- the distal end of the piston rod 61a of the first wax thermoelement 61 is inserted into the through hole 69a formed in the center of the adjuster 69 so as to be able to contact the moving body 70.
- the temperature characteristics of the wax thermoelements 61 and 62 will be described.
- the piston rods 61a, 62a of the wax thermoelements 61, 62 are set so that the protrusion amounts differ according to the temperature of the shower water. That is, as shown in FIG. 15, when the temperature of the shower water is less than 5 ° C., the amount of protrusion of the piston rod 61a of the first wax thermoelement 61 is larger than that of the piston rod 62a of the second wax thermoelement 62. Is larger than the protrusion amount of If the temperature of the shower water exceeds 5 ° C, the amount of protrusion of the second piston rod 62a is larger than the amount of protrusion of the first piston rod 61a.
- the piston rod 61a of the first wax thermoelement 61 is set so that when the temperature of the shower water is 45 ° C., the amount of protrusion becomes the largest and reaches the stroke end.
- the piston rod 62a of the second wax thermoelement 62 is set to reach the stroke end when the temperature of the shower water is higher than 5 ° C.
- the first valve hole 33a is forcibly closed and the second valve hole 33b is opened, so that the inappropriate temperature water is showered from the water discharge port 14 even though the inappropriate temperature water is flowing through the flow path 11. Water is discharged to the head 2 side.
- the piston rod 61a of the first wax thermoelement 61 does not reach the stroke end. If there is room for further protrusion, the release coil spring 68 is compressed, so that the protrusion of the piston rod 61a can be released. For this reason, it is possible to prevent a large pulling force from being applied to the connection portion between the first thermostat element 61 and the valve element 16, and to improve reliability. At the same time, the first valve hole 33a and the second valve hole 33b can be satisfactorily opened and closed without being affected by the mounting accuracy of the first wax thermoelement 61.
- the first temperature sensing element 23a may be arranged inside the bias spring 22 instead of being arranged outside the noise spring 22.
- the first and second temperature sensing elements 23a and 23b may be leaf springs, wires, or the like instead of coil springs.
- the first temperature sensing element 23a extends when the temperature of the shower water is higher than 35 ° C. and lower than 45 ° C.
- the second temperature sensing element 23b is The shower water extends when the temperature of the shower water is 45 ° C or higher.
- another temperature-sensitive element that extends in a temperature range different from these temperatures may be used, and the temperature range considered as appropriate temperature water may be changed.
- the temperature range in which the piston rods 61a, 62a of the respective wax thermoelements 61, 62 protrude may be changed to change the temperature range regarded as the appropriate temperature water.
- the valve element 16 is mechanically moved to the first position using the temperature-sensitive elements 23a and 23b made of a shape memory alloy or the wax thermoelements 61 and 62. Force moving between P1 and second position P2
- the valve body 16 may be electrically moved by, for example, an electromagnetic valve.
- a temperature sensor is provided in the main body 10, and the electromagnetic valve is driven based on a temperature detection signal detected by the temperature sensor.
- the second outlet for discharging the unsuitable temperature water is provided on the upstream side of the flow path, and the first outlet for discharging the appropriate temperature water is provided on the downstream side.
- the positional relationship between the first and second outlets may be changed.
- the fluid is not limited to water (shower water), but may be another liquid such as lubricating oil or a gas such as air.
- the flow path switching valve A may be applied to, for example, a toilet flush hot toilet seat system instead of a bathtub shower system.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Temperature-Responsive Valves (AREA)
- Domestic Plumbing Installations (AREA)
- Bathtubs, Showers, And Their Attachments (AREA)
- Sliding Valves (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04788336A EP1669650A1 (en) | 2003-09-30 | 2004-09-29 | Flow channel switching valve and shower system |
US10/574,395 US20070119989A1 (en) | 2003-09-30 | 2004-09-29 | Flow channel switching valve and shower system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-339821 | 2003-09-30 | ||
JP2003339821 | 2003-09-30 | ||
JP2003431649A JP2005127499A (ja) | 2003-09-30 | 2003-12-25 | 流路切換バルブ及びシャワー装置 |
JP2003-431649 | 2003-12-25 |
Publications (1)
Publication Number | Publication Date |
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WO2005031203A1 true WO2005031203A1 (ja) | 2005-04-07 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/014270 WO2005031203A1 (ja) | 2003-09-30 | 2004-09-29 | 流路切換バルブ及びシャワーシステム |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070119989A1 (ja) |
EP (1) | EP1669650A1 (ja) |
JP (1) | JP2005127499A (ja) |
WO (1) | WO2005031203A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11725367B2 (en) | 2020-02-05 | 2023-08-15 | Sanei Ltd. | Cold water discharge apparatus |
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JP4919772B2 (ja) * | 2006-11-16 | 2012-04-18 | 株式会社Lixil | 自動温度調節機能付の湯水混合弁 |
US9050612B2 (en) * | 2009-03-19 | 2015-06-09 | Delta Faucet Company | Shower device with independently operating valves |
US20160201305A1 (en) * | 2013-10-09 | 2016-07-14 | Evolve Technologies, Llc | Auto-diverter valve without leakage |
US10066376B2 (en) * | 2013-10-09 | 2018-09-04 | Evolve Technologies Llc | Tub faucet having a control valve without hammering |
US10753071B2 (en) * | 2013-10-09 | 2020-08-25 | Evolve Technologies, Llc | Tub faucet having a control valve with reduced backpressure |
US10301800B2 (en) * | 2013-10-09 | 2019-05-28 | Evolve Technologies Llc | Tub faucet having a control valve with reduced backpressure |
US20160201302A1 (en) * | 2013-10-09 | 2016-07-14 | Evolve Technologies, Llc | Faucet valve having ada compliant reset |
US9737899B2 (en) * | 2013-10-09 | 2017-08-22 | Evolve Technologies, Llc | Water control system having a temperature controlled tub faucet valve |
CN105864456B (zh) * | 2016-03-18 | 2020-03-03 | 进化科技有限责任公司 | 无撞击的具有控制阀的浴缸龙头 |
CN106015653B (zh) * | 2016-06-21 | 2018-06-15 | 厦门松霖科技股份有限公司 | 一种排冷切换阀和组合花洒 |
US10563384B2 (en) * | 2017-05-12 | 2020-02-18 | Norman Faiola | Quick clean faucet |
DE102017123430A1 (de) * | 2017-10-09 | 2019-04-11 | Grohe Ag | Wegeventil |
DE102017123429A1 (de) * | 2017-10-09 | 2019-04-11 | Grohe Ag | Ventilanordnung und Sanitäranlage |
US10967390B2 (en) | 2017-12-01 | 2021-04-06 | Evolve Technologies, Llc | Efficient showerhead with purge outlet |
CN108361410A (zh) * | 2018-03-09 | 2018-08-03 | 厦门建霖健康家居股份有限公司 | 一种切换阀芯 |
JP7358261B2 (ja) * | 2020-02-05 | 2023-10-10 | Sanei株式会社 | 冷水排出装置 |
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JPS6299531A (ja) * | 1985-10-25 | 1987-05-09 | 松下電工株式会社 | 冷水及び熱湯の除去装置 |
JPS62149753U (ja) * | 1986-03-14 | 1987-09-22 | ||
JPH01173580U (ja) * | 1988-05-27 | 1989-12-08 | ||
JPH0684081U (ja) * | 1993-05-14 | 1994-12-02 | 株式会社エムアイシー | 自動切替弁 |
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JPH0886369A (ja) * | 1994-07-07 | 1996-04-02 | Hans Grohe Gmbh & Co Kg | 衛生機器用安全装置 |
JP2003024232A (ja) * | 2001-07-11 | 2003-01-28 | Kvk Corp | シャワー装置 |
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US2830767A (en) * | 1956-01-06 | 1958-04-15 | Thompson Prod Inc | Selector valve |
WO1997012164A1 (en) * | 1995-09-29 | 1997-04-03 | Toto Ltd. | Temperature responding valve device and channel changeover valve using same |
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- 2003-12-25 JP JP2003431649A patent/JP2005127499A/ja active Pending
-
2004
- 2004-09-29 EP EP04788336A patent/EP1669650A1/en not_active Withdrawn
- 2004-09-29 US US10/574,395 patent/US20070119989A1/en not_active Abandoned
- 2004-09-29 WO PCT/JP2004/014270 patent/WO2005031203A1/ja not_active Application Discontinuation
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JPS6299531A (ja) * | 1985-10-25 | 1987-05-09 | 松下電工株式会社 | 冷水及び熱湯の除去装置 |
JPS62149753U (ja) * | 1986-03-14 | 1987-09-22 | ||
JPH01173580U (ja) * | 1988-05-27 | 1989-12-08 | ||
JPH074563A (ja) * | 1993-03-04 | 1995-01-10 | Maier Perlman | 形状記憶合金製アクチュエーターを有する温感式三方ラインバルブ |
JPH0684081U (ja) * | 1993-05-14 | 1994-12-02 | 株式会社エムアイシー | 自動切替弁 |
JPH0886369A (ja) * | 1994-07-07 | 1996-04-02 | Hans Grohe Gmbh & Co Kg | 衛生機器用安全装置 |
JP2003024232A (ja) * | 2001-07-11 | 2003-01-28 | Kvk Corp | シャワー装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11725367B2 (en) | 2020-02-05 | 2023-08-15 | Sanei Ltd. | Cold water discharge apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP1669650A1 (en) | 2006-06-14 |
JP2005127499A (ja) | 2005-05-19 |
US20070119989A1 (en) | 2007-05-31 |
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