WO2018235359A1 - Hot water/cold water switching faucet - Google Patents

Hot water/cold water switching faucet Download PDF

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Publication number
WO2018235359A1
WO2018235359A1 PCT/JP2018/010853 JP2018010853W WO2018235359A1 WO 2018235359 A1 WO2018235359 A1 WO 2018235359A1 JP 2018010853 W JP2018010853 W JP 2018010853W WO 2018235359 A1 WO2018235359 A1 WO 2018235359A1
Authority
WO
WIPO (PCT)
Prior art keywords
hot water
casing
hot
control valve
valve body
Prior art date
Application number
PCT/JP2018/010853
Other languages
French (fr)
Japanese (ja)
Inventor
栄治 関
剛 萩原
Original Assignee
日本サーモスタット株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本サーモスタット株式会社 filed Critical 日本サーモスタット株式会社
Priority to CN201880040151.6A priority Critical patent/CN111033100B/en
Publication of WO2018235359A1 publication Critical patent/WO2018235359A1/en

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures

Definitions

  • the present invention relates to a hot water switching valve for switching between hot water and water.
  • a tubular casing having a hot water inlet, a water inlet and an outlet, and a control valve body disposed in the casing and capable of selectively closing the hot water inlet and the water inlet, and moving the control valve body DESCRIPTION OF RELATED ART
  • the hot water switching plug which can switch hot water and water by making it be known is known (for example, refer patent document 1).
  • Patent Document 1 a hot water / water switching plug for temperature control attached to a faucet in a bathroom of a general household, and even if the outlet temperature changes due to a change in water pressure etc., the biasing force is accompanied by this temperature change.
  • the temperature sensitive spring By changing the temperature sensitive spring, the degree of opening of the hot water inlet by the control valve body can be adjusted, and hot water of appropriate temperature can be discharged from the outlet.
  • An object of the present invention is to provide a hot water / water switching plug which can suppress the manufacturing cost more than the conventional one while maintaining the safety in view of the above points.
  • the present invention is A cylindrical casing (for example, the casing 2 of the embodiment, hereinafter the same); A hot water inlet (for example, hot water inlet 6 in the embodiment, hereinafter the same) and an aqueous inlet (for example, water inlet 7 in the embodiment), which are provided on the circumferential wall of the casing at intervals in the axial direction.
  • a hot water inlet for example, hot water inlet 6 in the embodiment, hereinafter the same
  • aqueous inlet for example, water inlet 7 in the embodiment
  • An outlet provided at an end of the casing on the water inlet side (for example, the outlet 5 in the embodiment, hereinafter the same);
  • a water discharge state is provided axially slidably in the casing, and by sliding in the casing, the water inlet is closed and the water inlet is opened to allow water to flow out from the outlet (
  • the water discharge state of the embodiment hereinafter the same
  • the hot water discharge state for example, the water discharge state of the embodiment below
  • control valve body for example, control valve body 9 according to the embodiment, hereinafter the same
  • a water / water switching screw e.g., the water / water switching screw 13 according to the embodiment, hereinafter the same
  • a slider that is disposed in the casing in a state of being prevented from rotating and is screwed with the hot water switching screw, and slides in the axial direction in the casing by rotating the hot water switching screw (for example, a slider of the embodiment) 12.
  • a temperature sensitive element for example, the wax element 10 or the SMA spring according to the embodiment, hereinafter the same
  • the control valve body is a hot water switching valve (for example, the hot water switching valve 1 of the embodiment, hereinafter the same) configured to move forward and backward according to the slider moved forward and backward by the rotation of the hot water switching screw.
  • a closing mechanism (e.g., a closing mechanism 15 according to the embodiment) which reduces the amount of hot water to be discharged from the outlet when the temperature of the hot water flowing in the casing becomes equal to or higher than a predetermined temperature by using expansion and contraction of the temperature sensing element. Identical)).
  • the closing mechanism and the temperature sensing element for operating the closing mechanism at the location where the temperature sensing element for temperature control of the conventional hot and cold water mixing valve is built, and the hot water having a predetermined temperature or more When the hot water is discharged, the amount of hot water flowing out of the outlet can be reduced.
  • a hot water / water switching plug having the casing of a hot / water mixing tap having a high-performance temperature control function, a hot water / water switching screw, etc. as a common part, and assembling of the bathroom to a faucet is also high performance.
  • the hot and cold water mixing valve is assembled in the same manner, the hot and cold water switching valve can be easily assembled. Therefore, it is possible to provide a hot water switching plug whose manufacturing cost is reduced while maintaining safety.
  • the closing mechanism is a collar member (for example, the collar member 16 of the embodiment, hereinafter the same) and an inward overhang provided on the inner peripheral surface of the casing.
  • Parts e.g., annular members 17 of the embodiment, hereinafter the same
  • the extension of the temperature sensing element causes the collar member to be pressed and the collar member and the overhanging part overlap, thereby causing the flow
  • the amount of hot and cold water flowing out of the outlet can be reduced.
  • the collar member and the overhanging portion overlap to reduce the amount of hot and cold water flowing out from the outflow port.
  • the outflow from the outlet can be prevented or suppressed, and the safety of the hot water switching plug can be maintained by a simple configuration.
  • the outflow amount of the hot water decreases, it is possible to notify the user that the hot water having the predetermined temperature or more is flowing out by the decrease of the outflow amount.
  • the overhanging portion can be constituted by an annular member (for example, the annular member 17 of the embodiment, hereinafter the same) fixed in the casing.
  • the gap between the overhang portion and the collar member can be adjusted by the annular member, and the manufacturing cost can be suppressed without requiring the casing to be formed with high accuracy.
  • the collar member is provided with a guide portion (for example, the pillar portion 16e of the embodiment, hereinafter the same) extending toward the inside of the overhang portion. .
  • the collar member is accommodated inside the overhang without being caught by the end of the overhang, and the collar member and the overhang can be smoothly overlapped.
  • the closing mechanism when the closing mechanism is not in the closed state, a gap is generated between the collar member and the projecting portion, and a gap through which the water flows is formed on the outer peripheral side of the collar member. Therefore, the collar member is easily wobbled.
  • the guide extends from the collar member toward the inside of the overhang, the guide provided on the collar member is positioned inside the overhang even if the closing mechanism is not in the closed state. And the wobble of the collar member can be prevented or suppressed.
  • the annular member can be easily assembled to the casing as compared with the case where another guide portion extending from the annular member as the overhang toward the outside of the collar member is provided. It becomes easy, and manufacture becomes easy also as the whole hot water switching plug.
  • the closing mechanism is at least partially constituted by the control valve body, and the control valve body is pressed by the extension of the temperature sensing element to cause the molten metal flow by the control valve body.
  • the inlet can be blocked to reduce the amount of hot water flowing out of the outlet.
  • the closing mechanism is configured by using the existing control valve body, it is possible to effectively utilize the existing parts and provide the hot water / water switching plug with secured safety at low cost.
  • the closing mechanism is configured using only the existing control valve body, the hot water / water switching plug which secures safety by effectively using the existing parts without using new additional parts can be achieved at a lower cost. Can be provided.
  • the slider when the control valve body is pressed by the extension of the temperature sensing element and the hot water inlet is closed by the control valve body, the slider is also moved by the control valve body.
  • the hot water switching screw is rotated by being pushed back.
  • the hot water inlet is closed by the control valve body by the extension of the temperature sensing element, and the hot water switching screw is also rotated. Therefore, even if the temperature sensing element cools and shrinks, the hot water switching screw is switched to the outgoing water state in which the hot water inlet is closed by the control valve and the water inlet is opened. Can be prevented.
  • a mechanism for maintaining the blocking state is separately provided in the hot water switching plug It is not necessary to be able to provide the ability to maintain a blocked state without increasing the part count and manufacturing costs.
  • Explanatory drawing which shows the pouring state of the hot water switching plug of 1st Embodiment in a partial cross section.
  • Explanatory drawing which shows the pouring state of the hot water switching plug of 1st Embodiment in a partial cross section.
  • Explanatory drawing which shows the state which the thermosensitive element of the hot water switching valve
  • the perspective view which shows the pouring state of the hot water switching plug of 1st Embodiment in a partial cross section.
  • the perspective view which shows the state which the thermosensitive element of the hot water switching plug of 1st Embodiment extended by a partial cross section.
  • the perspective view which shows the color
  • FIG. 1 is explanatory drawing which shows the pouring state of the hot water switching plug of 1st Embodiment in a partial cross section.
  • FIG. 2 is explanatory drawing which shows the pouring state of the hot water switching plug of 1st Embodiment in a partial cross section.
  • FIG. 3 is explanatory drawing which shows the state which the thermosensitive element of the hot water switching plug of 1st Embodiment extended in a partial cross section.
  • FIG. 4 is a perspective view which shows the pouring state of the hot water switching plug of 1st Embodiment by a partial cross section.
  • FIG. 1 is explanatory drawing which shows the pouring state of the hot water switching plug of 1st Embodiment in a partial cross section.
  • FIG. 2 is explanatory drawing which shows the pouring state of the hot water switching plug of 1st Embodiment in a partial cross section.
  • FIG. 3 is explanatory drawing which shows the state which the thermosensitive element of the hot water switching plug of 1st Em
  • FIG. 5 is a perspective view which shows the state which the temperature-sensitive element of the hot water switching plug of 1st Embodiment extended by a partial cross section.
  • FIG. 6 is a perspective view showing the collar member of the first embodiment.
  • FIG. 7 is a perspective view showing another example of the collar member of the first embodiment.
  • FIG. 8 is an explanatory view showing, in a partial cross section, a state in which the temperature sensitive element of the hot water switching valve according to the second embodiment is extended.
  • FIG. 9 is explanatory drawing which shows the state which the temperature-sensitive element of the hot water switching plug of 3rd Embodiment extended in a partial cross section.
  • the hot water switching valve 1 of the first embodiment includes a cylindrical casing 2 and a control valve mechanism W incorporated in the casing 2.
  • the casing 2 has a cylindrical shape with a bottom, and has a first casing member 3 having an external thread 3a at the outer periphery of the opening end, and a cylindrical shape, an external thread 3a of the first casing 3 at one opening end. And a second casing member 4 having an outlet 5 at the other open end.
  • the second casing member 4 is located on the outlet 5 side with respect to the female screw portion 4 a and has a plurality of water inlets 6 provided at intervals in the circumferential direction, and a predetermined distance from the water inlet 6. And a plurality of water inlets 7 provided at the outlet 5 side and spaced at intervals in the circumferential direction.
  • the first casing member 3 also has a hole 8 drilled in the center of the bottom wall.
  • the second casing member 4 is circumferentially spaced at the open end of the outer cylindrical portion 4b having the female screw portion 4a and the other side (outlet 5 side) opposite to the side on which the female screw portion 4a is formed. And an inner cylindrical portion 4d supported on an inner concentric axis by a plurality of connection portions 4c. A space defined by the outer cylindrical portion 4b, the connection portion 4c, and the inner cylindrical portion 4d is an outlet 5 from which the hot and cold water flowing from the hot water inlet 6 and the water inlet 7 flows out.
  • the outlet 5 side of the inner cylindrical portion 4d is closed, and the wax element 10 is configured to be received by the closed portion of the inner cylindrical portion 4d.
  • the control valve mechanism W includes a control valve body 9 capable of selectively closing either the hot water inlet 6 or the water inlet 7 and a wax as a temperature sensing element disposed closer to the outflow port 5 than the control valve body 9.
  • a bias spring 11 disposed between the element 10, the control valve body 9 and the wax element 10 and biasing the control valve body 9 away from the wax element 10, and integrally formed with the control valve body 9;
  • a slider 12 positioned on the side of the first casing member 3 of the control valve body 9.
  • the temperature-sensitive element is not limited to the wax element 10, and may be any other element as long as it is drawn when the temperature of the hot and cold water flowing out from the outlet 5 is equal to or higher than a predetermined temperature and shrunk below the predetermined temperature.
  • the temperature sensitive element may be configured by an SMA (Shape Memory Alloy) spring.
  • the biasing force (elastic force) of the SMA spring changes due to the temperature change of the hot and cold water, so that the bias spring 11 of the hot water / water switching plug 1, the return prevention spring 14 and the SMA spring break down, and as a result, the SMA spring expands and contracts. It will be.
  • the “predetermined temperature” is a temperature set based on the safety when hot water is used in a bathroom or the like, and in the embodiment, necessary and sufficient safety can be ensured.
  • the temperature can be set.
  • a plurality of (for example, six) water channels 9a having a substantially arc-shaped cross section penetrating in the axial direction are provided at intervals in the circumferential direction.
  • the hot water flowing in from the hot water inlet 6 flows out from the outlet 5 through the hot water passage 9a.
  • a protrusion 9b extending annularly in the circumferential direction is provided on the outer periphery of the control valve body 9.
  • the protrusion 9 b prevents or suppresses that the hot water flowing in from the hot water inlet 6 passes the outer periphery of the control valve body 9 and the water flowing in from the water inlet 7 passes the outer circumferential surface of the control valve 9. ing.
  • the protrusion 9 b has less frictional resistance as compared with a rubber packing or the like, the control valve body 9 can slide smoothly in the casing 2.
  • the wax element 10 is housed in a bottomed cylindrical wax housing 10a for containing wax and a diaphragm not shown, a guide member 10b caulked and fixed to the opening of the wax housing 10a, and a guide member 10b. And a piston 10c to be guided.
  • the guide member 10b is provided with a hole 10d that allows the tip of the piston 10c to be freely protruded.
  • An annular protrusion 10 e is provided on the outer periphery of the opening end of the wax housing 10 a so as to protrude radially outward.
  • the wax element 10 when the temperature of the water flowing in the casing 2 reaches a predetermined temperature or more, the wax in the wax housing 10a expands and the diaphragm (not shown) expands, and the piston 10c protrudes from the hole 10d of the guide member 10b. Do. Further, when the temperature of the hot and cold water flowing in the casing 2 becomes lower than a predetermined temperature, the wax in the wax housing 10a contracts and the diaphragm (not shown) returns to its original state, and the piston 10c is accommodated again in the guide member 10b. In this manner, the wax element 10 is configured to be stretchable by the temperature change of the hot and cold water in the casing 2.
  • An annular water-side valve seat 7 a is provided at an opening edge on the outlet 5 side of the water inlet 7 of the second casing member 4 so as to protrude radially inward of the second casing member 4.
  • the open end of the first casing member 3 on the side of the male screw portion 3a is the end of the second casing member 4 on the side away from the outlet 5 of the melt inlet 6 of the second casing member 4 in a state of being screwed to the second casing member 4 It is located and functions as the hot water side valve seat 6a.
  • the control valve body 9 is disposed slidably in the axial direction of the casing 2 between the hot water side valve seat 6 a and the water side valve seat 7 a in the casing 2.
  • the control valve body 9 By moving in the axial direction, the control valve body 9 abuts against the hot water side valve seat 6 a to close the hot water inlet 6 and separate from the water side valve seat 7 a to open the water inlet 7 (FIG. 2) (See Fig. 1) and a hot-out state (see FIG. 1) in which the hot water inlet 6 is separated from the hot water side valve seat 6a and the hot water inlet 6 is opened to abut the water side valve seat 7a to close the water inlet 7. It can be switched.
  • a plurality of axially extending groove portions 12a are formed on the outer peripheral surface of the slider 12 at intervals in the circumferential direction, and in the inner peripheral surface of the first casing member 3, in the axial direction corresponding to the groove portions 12a.
  • a plurality of extending ridges 3b are formed. The rotation of the slider 12 in the casing 2 is prevented by the engagement of the groove 12a and the protrusion 3b.
  • a female screw portion 12 b is formed on the inner circumferential surface of the slider 12.
  • a hot water / water switching screw 13 is disposed so as to be located between the bottom wall of the first casing member 3 and the slider 12.
  • a hole 8 is provided in the bottom wall of the first casing member 3.
  • the hot water switching screw 13 is exposed to the outside of the casing 2 from the hole 8 and is provided at the axial direction center of the hot water switching screw 13 and a connecting part 13a to which a hot water switching dial etc. (not shown) is connected.
  • an annular projection 13b for preventing the hot water / water switching screw 13 from falling out of the casing 2 from the hole 8 by engaging with the inner surface of the bottom wall of the first casing member 3;
  • a male screw 13c screwed to 12b.
  • the male screw 13c of the water / water switching screw 13 is rotated, and the slider 12 having the female screw 12b screwed to the male screw 13c is engaged by the groove 12a and the protrusion 3b. Because it can not rotate, it slides in the axial direction. Thus, the control valve body 9 integrally formed with the slider 12 can also be moved to any position in the axial direction.
  • the male screw portion 13c of the hot water switching screw 13 and the female screw portion 12b of the slider 12 are configured such that the stroke of the slider 12 becomes large even if the lead is enlarged and the hot water switching screw 13 is rotated small.
  • the slider 12 moves to the hot water switching screw 13 side by the biasing force of the bias spring 11, water pressure, etc. in a state where the slider 12 is separated from the hot water switching screw 13.
  • a return prevention spring 14 is provided between the annular projection 13 b of the hot water switching screw 13 and the slider 12 to prevent or suppress unintended sliding of the slider 12.
  • the hot water switching plug 1 of the present embodiment includes a closing mechanism 15.
  • the closing mechanism 15 is a collar member 16 (for example, made of stainless steel or synthetic resin) disposed in the casing 2 and between the control valve body 9 and the wax element 10, and an inner peripheral surface of the second casing member 4. And an annular member 17 (for example, made of synthetic resin) fixed by press-fitting.
  • the collar member 16 includes a cylindrical portion 16a and a closed portion 16b that closes one end of the cylindrical portion 16a.
  • the cylindrical portion 16a is provided with a plurality of rectangular window portions 16c positioned on the other end side opening and spaced in the circumferential direction.
  • a hole 16 d is provided in the closed portion 16 b.
  • a portion of the column portion 16e of the cylindrical portion 16a existing between the windows 16c in the circumferential direction, and a cylinder positioned on the other end side of the window portion 16c in the cylindrical portion 16a.
  • the portion of the portion 16a guides the movement of the collar member 16 in the axial direction, and corresponds to the guide portion of the present invention.
  • the guide can also be provided on the annular member 17.
  • a pillar extending from the annular member 17 to the outer periphery of the cylindrical portion 16 a of the collar member 16 may be provided.
  • the annular member 17 since the annular member 17 is press-fit into the casing 2, if the annular member 17 is provided with a pillar, it is necessary to carefully press-in while carefully avoiding the pillar from breaking when press-fitting. Yes, assembly is troublesome.
  • the annular member 17 can be easily assembled to the casing 2, and the manufacturing is possible even with the hot and cold water switching valve 1 as a whole. It becomes easy.
  • the wax rod body 10a of the wax element 10 is inserted into the hole 16d of the closed portion 16b, and the closed portion 16b of the collar member 16 is engaged with the annular projection 10e of the wax member 10a.
  • the outer diameter of the collar member 16 is set smaller than the inner diameter of the annular member 17.
  • One end of the bias spring 11 is received by the annular protrusion 10 e of the wax element 10 through the closed portion 16 b of the collar member 16.
  • the shape of the collar member 16 is not limited to that shown in FIG.
  • a pillar 16 e may be provided which extends from the other end of the cylindrical portion 16 a toward the inside of the annular member 17.
  • the pillar portion 16e corresponds to the guiding portion of the present invention.
  • the annular member 17 not provided with the column portion can be easily press-fitted into the casing 2, and the manufacturing can be facilitated even as the entire hot water / water switching plug 1.
  • the column portion 16e may not be provided, and instead of the column portion 16e, a guide portion extending from one end of the annular member 17 to the outside of the cylindrical portion 16a of the collar member 16 may be provided.
  • the usage method of the hot water switching plug 1 of 1st Embodiment is demonstrated.
  • the control valve 9 integrally formed with the slider 12 is also made on the hot water switching screw 13 side by rotating the hot water switching screw 13 and pulling the slider 12 toward the hot water switching screw 13 side. Be drawn to As a result, the control valve body 9 abuts against the hot water side valve seat 6 a to close the hot water inlet 6, and only the water inlet 7 is opened.
  • the wax in the wax housing 10a expands and the diaphragm (not shown) expands, and the piston 10c protrudes from the hole 10d of the guide member 10b.
  • the collar member 16 is pressed by the wax element 10, and the collar member 16 and the annular member 17 as the overhang portion overlap with each other, and the outflow amount of hot and cold water from the outlet 5 is reduced. For this reason, it is possible to prevent or suppress high temperature hot water from flowing out from the outlet 5, and maintain the safety of the hot water switching valve 1 to the same extent as the existing high performance hot water mixing valve by a simple configuration. Can.
  • the control valve 9 is pressed by the wax element 10 via the bias spring 11, and the hot water inlet 6 is closed by the control valve 9.
  • the biasing force of the bias spring 11 and the return prevention spring 14 is set to And when the control valve body 9 is pressed by the hot water inlet 6 side, the hot water switching screw 13 rotates and is returned to the position of the water discharge state.
  • the wax element 10 By providing the wax element 10, it is possible to reduce the amount of the hot water flowing out from the outlet when the hot water having a predetermined temperature or more is drawn.
  • the hot and cold water switching valve 1 can be easily assembled. Therefore, the hot and cold water switching valve 1 can be provided in which the manufacturing cost is reduced while maintaining the safety.
  • the hot water switching plug 1 of the present embodiment when the temperature of the hot water flowing in the casing 2 is equal to or higher than the predetermined temperature, the collar member 16 and the annular member 17 as the overhanging portion overlap and flow out. Since the outflow amount of hot water from 5 decreases, high temperature hot water can be prevented or suppressed from flowing out from the outlet 5, and the safety of the hot water switching valve 1 can be improved by the simple configuration. It can be maintained at the same level as the mixing stopper.
  • the closing mechanism 15 when the outgoing hot water is at a predetermined temperature or higher, the closing mechanism 15 is closed, and the outflow amount of hot water decreases, so the outflow amount of the hot water decreases and thus the user is given predetermined. It can be informed that hot water with a temperature higher than that is flowing out.
  • a portion between the collar member 16 in the circumferential direction between the window portions 16c as the guide portion and a portion closer to the control valve body 9 than the window portion 16c are annular members. Extending radially inward 17, this portion guides the collar member 16 so that it can move smoothly inside the annular member 17. Therefore, the collar member 16 is accommodated inside the annular member 17 without being caught by the end of the annular member 17 as the overhanging part, and the collar member 16 and the annular member 17 can be smoothly overlapped.
  • the collar member 16 is easily wobbled.
  • the guide portion provided on the collar member 16 is the inner side of the annular member 17 even when the closing mechanism 15 is not in the closed state.
  • the collar member can be positioned to prevent or suppress wobble of the collar member.
  • the annular member 17 not provided with the column portion can be easily press-fitted to the casing 2, and the manufacturing as a whole of the hot water / water switching plug 1 becomes easy.
  • the hot water switching plug 1 of the present embodiment it is not necessary to integrally mold the overhanging portion on the casing 2. For this reason, the gap between the overhanging portion and the collar member 16 can be adjusted by the annular member 17 as the overhanging portion in the present embodiment, and the casing 2 is highly accurate in order to appropriately set the gap with the collar member 16 The manufacturing cost of the hot water switching plug 1 can be suppressed without requiring molding of the above.
  • the existing control valve body 9 is conventionally used for a high performance hot / cold water mixing valve to construct the closing mechanism 15, so that the existing parts can be effectively used.
  • the hot and cold water switching plug 1 it is possible to provide the hot and cold water switching plug 1 with secured safety at a low cost.
  • the hot water inlet 6 is closed by the control valve body 9 and the hot water switching screw 13 is also rotated by the extension of the wax element 10 as the temperature sensing element. Therefore, even if the wax element 10 cools and shrinks, the hot water / water switching screw 13 is switched to the water discharging state in which the hot water inlet 6 is closed by the control valve body 9 and the water inlet 7 is opened. It is possible to maintain the hot state and open the hot water inlet 6 to prevent the hot water having a predetermined temperature or more from flowing out from the outflow port 5 again.
  • the closing mechanism 15 has been described which is configured by the collar member 16, the annular member 17, and the control valve body 9.
  • the closing mechanism of the present invention may not necessarily include the control valve body 9 as a component.
  • the closing mechanism is configured by the collar member 16 and the annular member 17, and the bias is applied so that the control valve body 9 does not close the hot water inlet 6 even when hot water having a predetermined temperature or more flows out.
  • the elastic force of the spring 11 and the return prevention spring 14 may be set.
  • the closing mechanism of the present invention does not necessarily have to include the collar member 16 and the annular member 17 as components.
  • the closing mechanism when the closing mechanism is constituted by the control valve body 9 and hot water having a predetermined temperature or more flows out, the high temperature hot water flows out by the control valve body 9 closing the hot water inlet 6. It may be possible to maintain the safety by preventing it from flowing out.
  • the annular member 17 separate from the second casing member 4 is fixed as the overhang portion of the present invention, and the second casing member 4 is adjusted to the outer diameter of the collar member 16 to be high.
  • projection part of this invention is not restricted to this.
  • the overhanging portion may be integrally formed with the second casing member 4.
  • the hot and cold water switching valve 1 of the second embodiment will be described with reference to FIG.
  • the same components as those of the first embodiment are denoted by the same reference numerals and the description thereof will be omitted.
  • the hot water switching plug 1 of the second embodiment does not have a collar member and an annular member, and the temperature of hot water flowing through the inside of the casing 2 becomes equal to or higher than a predetermined temperature.
  • the wax housing 10 a presses the control valve body 9 in the direction to close the hot water inlet 6. Therefore, the closing mechanism 15 of the second embodiment is only the control valve body 9.
  • the other configuration of the second embodiment is the same as that of the first embodiment.
  • the control valve body 9 as the closing mechanism is operated at the location where the temperature sensing element for temperature control of the conventional hot water / water mixing valve is incorporated.
  • the hot water inlet 6 is closed by the control valve body 9 and the hot water flows out from the outlet 5 only when the hot water having a predetermined temperature or more flows through the inside of the casing 2 only by providing the wax element 10 as a temperature sensing element for Can reduce the amount of Therefore, according to the hot water switching plug 1 of the second embodiment, by increasing the amount of water flowing out from the outlet 5, the temperature of hot water flowing out from the outlet 5 can be suppressed to less than the predetermined temperature.
  • hot and cold water switching plugs that use the casing of hot and cold water mixing taps that have high-performance temperature control functions and hot and cold water switching screws as common parts.
  • the hot and cold water mixing valve is assembled in the same manner, the hot and cold water switching valve can be easily assembled. Therefore, it is possible to provide a hot water switching plug whose manufacturing cost is reduced while maintaining safety.
  • the closing mechanism 15 is configured by using the existing control valve body 9, the existing parts can be used without using new additional parts such as the collar member and the annular member. It is possible to provide the hot and cold water switching valve 1 securing the safety at a low cost, by effectively utilizing the
  • the hot water inlet is blocked by the control valve body by the extension of the wax element 10 and the hot water switching screw 13 is also rotated. Therefore, even if the wax element 10 cools and shrinks, the hot water switching screw 13 is switched to a water discharging state in which the hot water inlet 6 is closed by the control valve body 9 and the water inlet is opened. It is possible to prevent the outflow from the outlet.
  • the hot and cold water switching valve 1 according to the third embodiment will be described with reference to FIG.
  • the same components as those of the first embodiment are denoted by the same reference numerals and the description thereof will be omitted.
  • the closing mechanism 15 is only the control valve body 9
  • the wax element 10 does not directly contact the control valve body 9 and bias spring
  • the control valve body 9 is configured to be pressed through 11.
  • the control valve body 9 of the third embodiment is not integrally molded with the slider 12 as in the first embodiment or the second embodiment, and is configured separately, and the control valve body 9 and the slider 12 And a bias spring 18 is disposed therebetween.
  • the slider 12 presses the control valve body 9 via the bias spring 18.
  • a wax element for moving the control valve body 9 to the hot water inlet 6 closed side to the place where the temperature-sensitive element for temperature control of the conventional hot water / water mixing valve is incorporated.
  • the provision of 10 can close the hot water inlet 6 and reduce the amount of hot water flowing out from the hot water outlet 5 when hot water having a predetermined temperature or more is discharged.
  • the amount of hot water supplied from the hot water inlet 6 into the casing 2 is reduced, the flow rate of water flowing in from the water inlet 7 is increased, and the temperature of hot water flowing out from the outlet 5 is made lower than a predetermined temperature. It is possible to reduce and secure safety.
  • the hot and cold water switching valve 1 having the hot water / water mixing faucet casing having high-performance temperature control function and the hot and cold water switching screw as a common part. Since the hot and cold water mixing valve is assembled in the same manner as in the above, the hot and cold water switching valve can be easily assembled. Therefore, it is possible to provide a hot water switching plug whose manufacturing cost is reduced while maintaining safety.
  • the closing mechanism 15 is configured by using the existing control valve body used in the high performance hot water / water mixing plug, new additions such as a collar member and an annular member etc. It is possible to provide the hot and cold water switching valve 1 securing safety at a low cost by effectively using existing parts without using parts.
  • the hot water inlet 6 is closed by the control valve body 9 by the extension of the wax element 10 as the temperature sensing element and the hot water switching screw 13 is also rotated. Return to the position of. Therefore, even if the wax element 10 cools and shrinks, the hot water switching screw 13 maintains the position of the water discharge state, so that it is possible to prevent the hot water having a predetermined temperature or more from flowing out again from the outlet.
  • the mechanism for maintaining the blocking state It is not necessary to provide a maintenance function of the blocking state without increasing the number of parts and the manufacturing cost.
  • the slider 12 when the wax element 10 is extended, the slider 12 is pressed and moved via the bias spring 11, the control valve body 9, and the bias spring 18, and the hot water switching screw 13 is rotated to discharge water It explained what went back to the position which becomes a state.
  • the elastic forces of the two bias springs 11 and 18 and the return prevention spring 14 are set so that the slider 12 does not move and the hot water switching screw 13 does not rotate even when the wax element 10 is extended.
  • the control valve body 9 is moved to the side where the hot water inlet 6 is closed through the bias spring 11 by the extension of the wax element 10 to make the hot water state, and hot water having a predetermined temperature or more is The effect of the present invention of preventing flowing out can be obtained.
  • control valve body 10 wax element (temperature sensitive element) 12: slider 13: hot water switching screw 15: closing mechanism 16: collar member 16e: pillar portion 17: annular member (extension portion) .

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Abstract

Provided is a hot water/cold water switching faucet with which stability can be maintained and the manufacturing cost can be decreased compared to the prior art. A hot water/cold water switching faucet comprises: a control valve body (9) that is switchable, by slidingly moving within a casing (2), between a cold water discharge state in which a hot water flow inlet (6) is closed and cold water is discharged, and a hot water discharge state in which a cold water flow inlet (7) is closed and hot water is discharged from a flow outlet (5); a slider (12) that is disposed to be screwed to a hot water/cold water switching screw (13) in a state in which rotation of the slider is inhibited within the casing (2), and that is slidingly moved in the axial direction through the inside of the casing (2) by rotating the hot water/cold water switching screw (13); and a wax element (10) that expands/contracts according to a temperature change of the hot water/cold water flowing through the inside of the casing (2). The hot water/cold water switching faucet further comprises a closing mechanism (15) that utilizes the expansion/contraction of the wax element (10) to decrease the amount of hot water discharged from the flow outlet (5) when the temperature of the hot water/cold water flowing through the inside of the casing (2) reaches or exceeds a predetermined temperature.

Description

湯水切替栓Hot water switch valve
　本発明は、湯と水とを切り替える湯水切替栓に関する。 BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a hot water switching valve for switching between hot water and water.
　従来、湯流入口、水流入口及び流出口を有する筒状のケーシングと、ケーシング内に配置され湯流入口と水流入口とを選択的に閉塞可能な制御弁体とを備え、制御弁体を移動させることによって湯と水とを切り替え自在な湯水切替栓が知られている（例えば、特許文献１参照）。 Conventionally, a tubular casing having a hot water inlet, a water inlet and an outlet, and a control valve body disposed in the casing and capable of selectively closing the hot water inlet and the water inlet, and moving the control valve body DESCRIPTION OF RELATED ART The hot water switching plug which can switch hot water and water by making it be known is known (for example, refer patent document 1).
　特許文献１のものでは、一般家庭のお風呂場の水栓に取り付けられる温度調節用の湯水切替栓であり、水圧の変化などにより出湯温度が変化しても、この温度変化に伴って付勢力が変化する感温ばねによって制御弁体による湯流入口の開度が調節されて、適切な温度の湯を流出口から出すことができる。 In the case of Patent Document 1, a hot water / water switching plug for temperature control attached to a faucet in a bathroom of a general household, and even if the outlet temperature changes due to a change in water pressure etc., the biasing force is accompanied by this temperature change. By changing the temperature sensitive spring, the degree of opening of the hot water inlet by the control valve body can be adjusted, and hot water of appropriate temperature can be discharged from the outlet.
特開２００９－１８０３０２号公報JP, 2009-180302, A
　近年、一般家庭の給湯器の進歩により、お風呂場の水栓の手元で湯水切替栓を用いて温度調整をする機会が減少し、専ら給湯器のリモコンで温度調整するケースが増加している。 In recent years, with the progress of water heaters in general homes, the opportunity to adjust the temperature using the hot water switching valve at the hand of the faucet in the bathroom has decreased, and the cases where the temperature is adjusted exclusively with the remote control of the water heater are increasing. .
　本発明は、以上の点に鑑み、安全性を維持しつつ、従来よりも製造コストを抑えることができる湯水切替栓を提供することを目的とする。 An object of the present invention is to provide a hot water / water switching plug which can suppress the manufacturing cost more than the conventional one while maintaining the safety in view of the above points.
　［１］上記目的を達成するため、本発明は、
　筒状のケーシング（例えば、実施形態のケーシング２。以下同一。）と、
　前記ケーシングの周壁に軸方向へ互いに間隔を存して設けられた湯流入口（例えば、実施形態の湯流入口６。以下同一。）及び水流入口（例えば、実施形態の水流入口７。以下同一。）と、
　前記ケーシングの前記水流入口側の端部に設けられた流出口（例えば、実施形態の流出口５。以下同一。）と、
　前記ケーシング内に軸方向に摺動自在に設けられ、前記ケーシング内を摺動することにより、前記湯流入口を閉塞し且つ前記水流入口を開口して水を前記流出口から流出させる出水状態（例えば、実施形態の出水状態。以下同一。）と、前記湯流入口を開口し且つ前記水流入口を閉塞して湯を前記流出口から流出させる出湯状態（例えば、実施形態の出湯状態。以下同一。）との何れかの状態に切替可能な制御弁体（例えば、実施形態の制御弁体９。以下同一。）と、
　前記ケーシング内で湯流入口側の端部に回転自在に配置され、一部が前記ケーシングの軸方向外方へ露出する湯水切替ネジ（例えば、実施形態の湯水切替ネジ１３。以下同一。）と、
　前記ケーシング内に回転を阻止された状態で前記湯水切替ネジと螺合して配置され、前記湯水切替ネジを回転させることにより前記ケーシング内を軸方向へ摺動するスライダ（例えば、実施形態のスライダ１２。以下同一。）と、
　前記ケーシング内に配置され、前記ケーシング内を流れる湯水の温度変化に応じて伸縮する感温素子（例えば、実施形態のワックスエレメント１０やＳＭＡバネ。以下同一。）と、
　を備え、前記制御弁体は、前記湯水切替ネジの回転によって進退する前記スライダに応じて進退するように構成された湯水切替栓（例えば、実施形態の湯水切替栓１。以下同一。）であって、
　前記感温素子の伸縮を利用して、前記ケーシング内を流れる湯水が所定温度以上となるときに前記流出口から流出させる湯の量を減少させる閉塞機構（例えば、実施形態の閉塞機構１５。以下同一。）を備えることを特徴とする。 [1] In order to achieve the above object, the present invention is
A cylindrical casing (for example, the casing 2 of the embodiment, hereinafter the same);
A hot water inlet (for example, hot water inlet 6 in the embodiment, hereinafter the same) and an aqueous inlet (for example, water inlet 7 in the embodiment), which are provided on the circumferential wall of the casing at intervals in the axial direction. .)When,
An outlet provided at an end of the casing on the water inlet side (for example, the outlet 5 in the embodiment, hereinafter the same);
A water discharge state is provided axially slidably in the casing, and by sliding in the casing, the water inlet is closed and the water inlet is opened to allow water to flow out from the outlet ( For example, the water discharge state of the embodiment (hereinafter the same) and the hot water discharge state (for example, the water discharge state of the embodiment below) in which the hot water inlet is opened and the hot water flows out from the water outlet. And the control valve body (for example, control valve body 9 according to the embodiment, hereinafter the same) which can be switched to any state of
A water / water switching screw (e.g., the water / water switching screw 13 according to the embodiment, hereinafter the same), which is rotatably disposed at an end on the hot water inlet side in the casing and partially exposed outward in the axial direction of the casing. ,
A slider that is disposed in the casing in a state of being prevented from rotating and is screwed with the hot water switching screw, and slides in the axial direction in the casing by rotating the hot water switching screw (for example, a slider of the embodiment) 12. The same below) and
A temperature sensitive element (for example, the wax element 10 or the SMA spring according to the embodiment, hereinafter the same) which is disposed in the casing and which expands and contracts in accordance with the temperature change of the hot and cold water flowing in the casing;
And the control valve body is a hot water switching valve (for example, the hot water switching valve 1 of the embodiment, hereinafter the same) configured to move forward and backward according to the slider moved forward and backward by the rotation of the hot water switching screw. ,
A closing mechanism (e.g., a closing mechanism 15 according to the embodiment) which reduces the amount of hot water to be discharged from the outlet when the temperature of the hot water flowing in the casing becomes equal to or higher than a predetermined temperature by using expansion and contraction of the temperature sensing element. Identical)).
　本発明によれば、従来の湯水混合栓の温度調整用の感温素子が内蔵されていた箇所に閉塞機構と閉塞機構を作動させるための感温素子を設けるだけで、所定温度以上の湯が出湯された場合に、流出口から流出する湯の量を減少させることができる。 According to the present invention, it is only necessary to provide the closing mechanism and the temperature sensing element for operating the closing mechanism at the location where the temperature sensing element for temperature control of the conventional hot and cold water mixing valve is built, and the hot water having a predetermined temperature or more When the hot water is discharged, the amount of hot water flowing out of the outlet can be reduced.
　ゆえに、高性能の温調機能を有する湯水混合栓のケーシングや湯水切替ネジなどを共通部品とする湯水切替栓を製造することができ、お風呂場の水栓への組み付けも従来の高性能の湯水混合栓と同様に組み付けられるため、湯水切替栓の組み付けが容易となる。従って、安全性を維持しつつ、製造コストを抑えた湯水切替栓を提供することができる。 Therefore, it is possible to manufacture a hot water / water switching plug having the casing of a hot / water mixing tap having a high-performance temperature control function, a hot water / water switching screw, etc. as a common part, and assembling of the bathroom to a faucet is also high performance. As the hot and cold water mixing valve is assembled in the same manner, the hot and cold water switching valve can be easily assembled. Therefore, it is possible to provide a hot water switching plug whose manufacturing cost is reduced while maintaining safety.
　［２］また、本発明においては、前記閉塞機構は、カラー部材（例えば、実施形態のカラー部材１６。以下同一。）と、前記ケーシングの内周面に設けられた内方に張り出す張出部（例えば、実施形態の環状部材１７。以下同一。）とで構成され、前記感温素子の延伸によって前記カラー部材が押圧されて前記カラー部材と前記張出部とが重なり合うことにより、前記流出口から流出される湯水の量を減少させることができる。 [2] Further, in the present invention, the closing mechanism is a collar member (for example, the collar member 16 of the embodiment, hereinafter the same) and an inward overhang provided on the inner peripheral surface of the casing. Parts (e.g., annular members 17 of the embodiment, hereinafter the same), the extension of the temperature sensing element causes the collar member to be pressed and the collar member and the overhanging part overlap, thereby causing the flow The amount of hot and cold water flowing out of the outlet can be reduced.
　かかる構成によれば、ケーシング内を流れる湯水の温度が所定温度以上である場合には、カラー部材と張出部とが重なり合って流出口からの湯水の流出量が減少するため、高温の湯水が流出口から流れ出ることを防止又は抑制することができ、簡易な構成によって、湯水切替栓の安全性を維持することができる。 According to this configuration, when the temperature of the hot and cold water flowing in the casing is equal to or higher than the predetermined temperature, the collar member and the overhanging portion overlap to reduce the amount of hot and cold water flowing out from the outflow port. The outflow from the outlet can be prevented or suppressed, and the safety of the hot water switching plug can be maintained by a simple configuration.
　また、湯水の流出量が減少するため、流出量の減少により、利用者に所定温度以上の湯水が流出していることを報知することができる。 Further, since the outflow amount of the hot water decreases, it is possible to notify the user that the hot water having the predetermined temperature or more is flowing out by the decrease of the outflow amount.
　［３］また、本発明においては、前記張出部は、前記ケーシング内に固定された環状部材（例えば、実施形態の環状部材１７。以下同一。）で構成されることができる。 [3] Further, in the present invention, the overhanging portion can be constituted by an annular member (for example, the annular member 17 of the embodiment, hereinafter the same) fixed in the casing.
　かかる構成によれば、ケーシングに張出部を一体成型する必要がない。このため、張出部とカラー部材との隙間を環状部材で調節することができ、ケーシングに高精度の成形が要求されることなく、製造コストを抑えることができる。 According to this configuration, it is not necessary to integrally form the overhanging portion on the casing. Therefore, the gap between the overhang portion and the collar member can be adjusted by the annular member, and the manufacturing cost can be suppressed without requiring the casing to be formed with high accuracy.
　［４］また、本発明においては、前記カラー部材には、前記張出部の内側に向かって延びる案内部（例えば、実施形態の柱部１６ｅ。以下同一。）が設けられていることが好ましい。 [4] Further, in the present invention, preferably, the collar member is provided with a guide portion (for example, the pillar portion 16e of the embodiment, hereinafter the same) extending toward the inside of the overhang portion. .
　かかる構成によれば、カラー部材が張出部の端部に引っ掛かることなく張出部の内側へ収容されて、カラー部材と張出部とを滑らかに重なり合わせることができる。また、閉塞機構が閉塞状態でない場合には、カラー部材と張出部との間に隙間が生じており、カラー部材の外周側には、湯水が流れる隙間が形成される。従って、カラー部材がぐらつき易い。しかしながら、カラー部材から張出部の内側に向かって案内部が伸びていれば、閉塞機構が閉塞状態でない場合においても、カラー部材に設けられた案内部を張出部の内側へ位置させておくことができ、カラー部材のぐらつきを防止し又は抑制させることができる。 According to this configuration, the collar member is accommodated inside the overhang without being caught by the end of the overhang, and the collar member and the overhang can be smoothly overlapped. In addition, when the closing mechanism is not in the closed state, a gap is generated between the collar member and the projecting portion, and a gap through which the water flows is formed on the outer peripheral side of the collar member. Therefore, the collar member is easily wobbled. However, if the guide extends from the collar member toward the inside of the overhang, the guide provided on the collar member is positioned inside the overhang even if the closing mechanism is not in the closed state. And the wobble of the collar member can be prevented or suppressed.
　更に、カラー部材に案内部を設けることによって、張出部としての環状部材からカラー部材の外側に向かって延びる他の案内部を設けた場合と比較して、環状部材をケーシングに容易に組み付けられるようになり、湯水切替栓全体としても製造が容易となる。 Furthermore, by providing the guide portion on the collar member, the annular member can be easily assembled to the casing as compared with the case where another guide portion extending from the annular member as the overhang toward the outside of the collar member is provided. It becomes easy, and manufacture becomes easy also as the whole hot water switching plug.
　［５］また、本発明においては、前記閉塞機構は、前記制御弁体によって少なくとも一部が構成され、前記感温素子の延伸によって前記制御弁体が押圧されて前記制御弁体によって前記湯流入口が閉塞されて、前記流出口から流出される湯の量を減少させることができる。 [5] Further, in the present invention, the closing mechanism is at least partially constituted by the control valve body, and the control valve body is pressed by the extension of the temperature sensing element to cause the molten metal flow by the control valve body. The inlet can be blocked to reduce the amount of hot water flowing out of the outlet.
　かかる構成によれば、既存の制御弁体を利用して閉塞機構を構成するため、既存部品を有効活用して、安全性を確保した湯水切替栓を低廉なコストで提供することができる。特に、閉塞機構を既存の制御弁体のみを利用して構成すれば、新たな追加部品を利用せずに既存部品を有効活用して、安全性を確保した湯水切替栓を更に低廉なコストで提供することができる。 According to this configuration, since the closing mechanism is configured by using the existing control valve body, it is possible to effectively utilize the existing parts and provide the hot water / water switching plug with secured safety at low cost. In particular, if the closing mechanism is configured using only the existing control valve body, the hot water / water switching plug which secures safety by effectively using the existing parts without using new additional parts can be achieved at a lower cost. Can be provided.
　［６］また、本発明においては、前記感温素子の延伸によって、前記制御弁体が押圧されて前記制御弁体によって前記湯流入口が閉塞されるときに、前記制御弁体によって前記スライダも押し戻されて、前記湯水切替ネジが回転することが好ましい。 [6] Further, in the present invention, when the control valve body is pressed by the extension of the temperature sensing element and the hot water inlet is closed by the control valve body, the slider is also moved by the control valve body. Preferably, the hot water switching screw is rotated by being pushed back.
　かかる構成によれば、感温素子の延伸によって制御弁体により湯流入口が閉塞されるとともに湯水切替ネジも回転する。従って、感温素子が冷えて縮んでも、湯水切替ネジが制御弁体によって湯流入口を閉塞し水流入口を開口させる出水状態に切り替えられているため、再び所定温度以上の湯水が流出口から流出することを防止することができる。また、所定温度以上の湯水が再度流出口から流出することを阻止する阻止状態を既存部品の湯水切替ネジで維持させることができるため、阻止状態を維持させるための機構を別途湯水切替栓に設ける必要がなく、部品点数および製造コストを増加させることなく、阻止状態の維持機能を設けることができる。 According to this configuration, the hot water inlet is closed by the control valve body by the extension of the temperature sensing element, and the hot water switching screw is also rotated. Therefore, even if the temperature sensing element cools and shrinks, the hot water switching screw is switched to the outgoing water state in which the hot water inlet is closed by the control valve and the water inlet is opened. Can be prevented. In addition, since it is possible to maintain the blocking state that prevents the hot water having a predetermined temperature or more from flowing out again from the outlet with the hot water switching screw of the existing part, a mechanism for maintaining the blocking state is separately provided in the hot water switching plug It is not necessary to be able to provide the ability to maintain a blocked state without increasing the part count and manufacturing costs.
第１実施形態の湯水切替栓の出湯状態を一部断面で示す説明図。Explanatory drawing which shows the pouring state of the hot water switching plug of 1st Embodiment in a partial cross section. 第１実施形態の湯水切替栓の出水状態を一部断面で示す説明図。Explanatory drawing which shows the pouring state of the hot water switching plug of 1st Embodiment in a partial cross section. 第１実施形態の湯水切替栓の感温素子が延伸した状態を一部断面で示す説明図。Explanatory drawing which shows the state which the thermosensitive element of the hot water switching valve | bulb of 1st Embodiment extended in a partial cross section. 第１実施形態の湯水切替栓の出湯状態を一部断面で示す斜視図。The perspective view which shows the pouring state of the hot water switching plug of 1st Embodiment in a partial cross section. 第１実施形態の湯水切替栓の感温素子が延伸した状態を一部断面で示す斜視図。The perspective view which shows the state which the thermosensitive element of the hot water switching plug of 1st Embodiment extended by a partial cross section. 第１実施形態のカラー部材を示す斜視図。The perspective view which shows the color | collar member of 1st Embodiment. 第１実施形態のカラー部材の他の実施例を示す斜視図。The perspective view which shows the other Example of the color | collar member of 1st Embodiment. 第２実施形態の湯水切替栓の感温素子が延伸した状態を一部断面で示す説明図。Explanatory drawing which shows the state which the thermosensitive element of the hot water switching valve | bulb of 2nd Embodiment extended in a partial cross section. 第３実施形態の湯水切替栓の感温素子が延伸した状態を一部断面で示す説明図。Explanatory drawing which shows the state which the thermosensitive element of the hot water switching valve | bulb of 3rd Embodiment extended in a partial cross section.
　図を参照して、本発明の湯水切替栓の実施形態を説明する。図１は、第１実施形態の湯水切替栓の出湯状態を一部断面で示す説明図である。図２は、第１実施形態の湯水切替栓の出水状態を一部断面で示す説明図である。図３は、第１実施形態の湯水切替栓の感温素子が延伸した状態を一部断面で示す説明図である。図４は、第１実施形態の湯水切替栓の出湯状態を一部断面で示す斜視図である。図５は、第１実施形態の湯水切替栓の感温素子が延伸した状態を一部断面で示す斜視図である。図６は、第１実施形態のカラー部材を示す斜視図である。図７は、第１実施形態のカラー部材の他の実施例を示す斜視図である。図８は、第２実施形態の湯水切替栓の感温素子が延伸した状態を一部断面で示す説明図である。図９は、第３実施形態の湯水切替栓の感温素子が延伸した状態を一部断面で示す説明図である。 An embodiment of the hot water switching valve of the present invention will be described with reference to the drawings. FIG. 1: is explanatory drawing which shows the pouring state of the hot water switching plug of 1st Embodiment in a partial cross section. FIG. 2: is explanatory drawing which shows the pouring state of the hot water switching plug of 1st Embodiment in a partial cross section. FIG. 3: is explanatory drawing which shows the state which the thermosensitive element of the hot water switching plug of 1st Embodiment extended in a partial cross section. FIG. 4: is a perspective view which shows the pouring state of the hot water switching plug of 1st Embodiment by a partial cross section. FIG. 5: is a perspective view which shows the state which the temperature-sensitive element of the hot water switching plug of 1st Embodiment extended by a partial cross section. FIG. 6 is a perspective view showing the collar member of the first embodiment. FIG. 7 is a perspective view showing another example of the collar member of the first embodiment. FIG. 8 is an explanatory view showing, in a partial cross section, a state in which the temperature sensitive element of the hot water switching valve according to the second embodiment is extended. FIG. 9: is explanatory drawing which shows the state which the temperature-sensitive element of the hot water switching plug of 3rd Embodiment extended in a partial cross section.
　［第１実施形態］
　図１に示すように、第１実施形態の湯水切替栓１は、円筒状のケーシング２と、ケーシング２に内蔵される制御弁機構Ｗとを備える。 First Embodiment
As shown in FIG. 1, the hot water switching valve 1 of the first embodiment includes a cylindrical casing 2 and a control valve mechanism W incorporated in the casing 2.
　ケーシング２は、有底筒状であって開口端部外周に雄ネジ部３ａを有する第１ケーシング部材３と、円筒状であって一方の開口端部に第１ケーシング部材３の雄ネジ部３ａに螺合する雌ネジ部４ａを有し、他方の開口端部に流出口５を有する第２ケーシング部材４とで構成される。 The casing 2 has a cylindrical shape with a bottom, and has a first casing member 3 having an external thread 3a at the outer periphery of the opening end, and a cylindrical shape, an external thread 3a of the first casing 3 at one opening end. And a second casing member 4 having an outlet 5 at the other open end.
　第２ケーシング部材４は、雌ネジ部４ａよりも流出口５側に位置させて周方向に間隔を存して複数穿設された湯流入口６と、湯流入口６から所定の間隔を存して流出口５側に位置させて周方向に間隔を存して複数穿設された水流入口７とを備える。また第１ケーシング部材３は、底壁の中央に穿設された孔部８を備える。 The second casing member 4 is located on the outlet 5 side with respect to the female screw portion 4 a and has a plurality of water inlets 6 provided at intervals in the circumferential direction, and a predetermined distance from the water inlet 6. And a plurality of water inlets 7 provided at the outlet 5 side and spaced at intervals in the circumferential direction. The first casing member 3 also has a hole 8 drilled in the center of the bottom wall.
　第２ケーシング部材４は、前記雌ネジ部４ａを有する外筒部４ｂと、その雌ネジ部４ａが形成された側と反対側の他方（流出口５側）の開口端部に周方向に間隔を存して複数設けられた接続部４ｃにより内方同心軸上に支持される内筒部４ｄとで構成される。外筒部４ｂと接続部４ｃと内筒部４ｄとにより画成される空間が、湯流入口６及び水流入口７から流入した湯水を流出させる流出口５となる。 The second casing member 4 is circumferentially spaced at the open end of the outer cylindrical portion 4b having the female screw portion 4a and the other side (outlet 5 side) opposite to the side on which the female screw portion 4a is formed. And an inner cylindrical portion 4d supported on an inner concentric axis by a plurality of connection portions 4c. A space defined by the outer cylindrical portion 4b, the connection portion 4c, and the inner cylindrical portion 4d is an outlet 5 from which the hot and cold water flowing from the hot water inlet 6 and the water inlet 7 flows out.
　内筒部４ｄの流出口５側は、閉塞されており、ワックスエレメント１０を内筒部４ｄの閉塞された部分で受けられるように構成されている。 The outlet 5 side of the inner cylindrical portion 4d is closed, and the wax element 10 is configured to be received by the closed portion of the inner cylindrical portion 4d.
　制御弁機構Ｗは、湯流入口６又は水流入口７の何れかを選択的に閉塞自在な制御弁体９と、制御弁体９よりも流出口５側に配置された感温素子としてのワックスエレメント１０と、制御弁体９とワックスエレメント１０との間に配置され、制御弁体９をワックスエレメント１０から離隔させるように付勢するバイアスバネ１１と、制御弁体９と一体に成形され、制御弁体９の第１ケーシング部材３側に位置するスライダ１２とを備える。 The control valve mechanism W includes a control valve body 9 capable of selectively closing either the hot water inlet 6 or the water inlet 7 and a wax as a temperature sensing element disposed closer to the outflow port 5 than the control valve body 9. A bias spring 11 disposed between the element 10, the control valve body 9 and the wax element 10 and biasing the control valve body 9 away from the wax element 10, and integrally formed with the control valve body 9; And a slider 12 positioned on the side of the first casing member 3 of the control valve body 9.
　なお、感温素子はワックスエレメント１０に限らず、流出口５から流出する湯水の温度が所定温度以上となるときに延伸して、所定温度未満のときに縮むものであれば他のものであってもよい。例えば、感温素子はＳＭＡ（Ｓｈａｐｅ　Ｍｅｍｏｒｙ　Ａｌｌｏｙ：形状記憶合金）バネで構成することもできる。ＳＭＡバネが湯水の温度変化によって付勢力（弾性力）が変化することにより、湯水切替栓１のバイアスバネ１１、戻り防止バネ１４、ＳＭＡバネの均衡が崩れて、結果的にＳＭＡバネが伸縮することとなる。 The temperature-sensitive element is not limited to the wax element 10, and may be any other element as long as it is drawn when the temperature of the hot and cold water flowing out from the outlet 5 is equal to or higher than a predetermined temperature and shrunk below the predetermined temperature. May be For example, the temperature sensitive element may be configured by an SMA (Shape Memory Alloy) spring. The biasing force (elastic force) of the SMA spring changes due to the temperature change of the hot and cold water, so that the bias spring 11 of the hot water / water switching plug 1, the return prevention spring 14 and the SMA spring break down, and as a result, the SMA spring expands and contracts. It will be.
　また、実施形態中、「所定温度」とはお風呂場などで湯を使用した場合の安全性に基づいて設定される温度であり、本実施形態においては、必要十分な安全性を確保することができる温度に設定されている。 Further, in the embodiment, the “predetermined temperature” is a temperature set based on the safety when hot water is used in a bathroom or the like, and in the embodiment, necessary and sufficient safety can be ensured. The temperature can be set.
　制御弁体９には、軸方向に貫通する断面略円弧形状の湯用流路９ａが周方向に間隔を存して複数（例えば、６つ）穿設されている。湯流入口６から流入した湯は、湯用流路９ａを通って流出口５から流出する。また、制御弁体９の外周には、周方向へ環状に延びる突条９ｂが設けられている。この突条９ｂにより、湯流入口６から流入した湯が制御弁体９の外周を通過すること、及び水流入口７から流入した水が制御弁体９の外周を通過することを防止又は抑制している。また、ゴムパッキンなどと比較して突条９ｂは摩擦抵抗が少ないため、ケーシング２内で制御弁体９を滑らかに摺動させることができる。 In the control valve body 9, a plurality of (for example, six) water channels 9a having a substantially arc-shaped cross section penetrating in the axial direction are provided at intervals in the circumferential direction. The hot water flowing in from the hot water inlet 6 flows out from the outlet 5 through the hot water passage 9a. Further, on the outer periphery of the control valve body 9, a protrusion 9b extending annularly in the circumferential direction is provided. The protrusion 9 b prevents or suppresses that the hot water flowing in from the hot water inlet 6 passes the outer periphery of the control valve body 9 and the water flowing in from the water inlet 7 passes the outer circumferential surface of the control valve 9. ing. Further, since the protrusion 9 b has less frictional resistance as compared with a rubber packing or the like, the control valve body 9 can slide smoothly in the casing 2.
　ワックスエレメント１０は、図示省略したワックスおよびダイヤフラム等を収容する有底筒状のワックス筺体１０ａと、ワックス筺体１０ａの開口部にかしめて固定されたガイド部材１０ｂと、ガイド部材１０ｂ内に収容されて案内されるピストン１０ｃとを備える。ガイド部材１０ｂは、ピストン１０ｃの先端部を突出自在とさせる孔部１０ｄを備える。ワックス筺体１０ａの開口端部の外周には、径方向外方へ突出する環状突出部１０ｅが設けられている。 The wax element 10 is housed in a bottomed cylindrical wax housing 10a for containing wax and a diaphragm not shown, a guide member 10b caulked and fixed to the opening of the wax housing 10a, and a guide member 10b. And a piston 10c to be guided. The guide member 10b is provided with a hole 10d that allows the tip of the piston 10c to be freely protruded. An annular protrusion 10 e is provided on the outer periphery of the opening end of the wax housing 10 a so as to protrude radially outward.
　ワックスエレメント１０は、ケーシング２内を流れる湯水の温度が所定温度以上となると、ワックス筺体１０ａ内のワックスが膨張してダイヤフラム（図示省略）が膨らみ、ピストン１０ｃがガイド部材１０ｂの孔部１０ｄから突出する。また、ケーシング２内を流れる湯水の温度が所定温度未満となるとワックス筺体１０ａ内のワックスが収縮してダイヤフラム（図示省略）が元に戻り、ピストン１０ｃが再びガイド部材１０ｂ内に収容される。このようにして、ワックスエレメント１０はケーシング２内の湯水の温度変化によって伸縮自在に構成されている。 In the wax element 10, when the temperature of the water flowing in the casing 2 reaches a predetermined temperature or more, the wax in the wax housing 10a expands and the diaphragm (not shown) expands, and the piston 10c protrudes from the hole 10d of the guide member 10b. Do. Further, when the temperature of the hot and cold water flowing in the casing 2 becomes lower than a predetermined temperature, the wax in the wax housing 10a contracts and the diaphragm (not shown) returns to its original state, and the piston 10c is accommodated again in the guide member 10b. In this manner, the wax element 10 is configured to be stretchable by the temperature change of the hot and cold water in the casing 2.
　第２ケーシング部材４の水流入口７における流出口５側の開口縁部には、第２ケーシング部材４の径方向内方へ突出するように環状の水側弁座７ａが設けられている。第１ケーシング部材３の雄ネジ部３ａ側の開口端縁は、第２ケーシング部材４に螺着した状態で第２ケーシング部材４の湯流入口６の流出口５から離隔する側の端縁に位置しており、湯側弁座６ａとして機能する。 An annular water-side valve seat 7 a is provided at an opening edge on the outlet 5 side of the water inlet 7 of the second casing member 4 so as to protrude radially inward of the second casing member 4. The open end of the first casing member 3 on the side of the male screw portion 3a is the end of the second casing member 4 on the side away from the outlet 5 of the melt inlet 6 of the second casing member 4 in a state of being screwed to the second casing member 4 It is located and functions as the hot water side valve seat 6a.
　制御弁体９は、ケーシング２内において、湯側弁座６ａと水側弁座７ａとの間をケーシング２の軸方向に摺動自在に配置されている。 The control valve body 9 is disposed slidably in the axial direction of the casing 2 between the hot water side valve seat 6 a and the water side valve seat 7 a in the casing 2.
　制御弁体９は、軸方向へ移動することにより、湯側弁座６ａに当接して湯流入口６を閉塞し水側弁座７ａから離隔して水流入口７を開口させる出水状態（図２参照）と、湯側弁座６ａから離隔して湯流入口６を開口し水側弁座７ａに当接して水流入口７を閉塞する出湯状態（図１参照）と、の何れかの状態に切換ることができる。 By moving in the axial direction, the control valve body 9 abuts against the hot water side valve seat 6 a to close the hot water inlet 6 and separate from the water side valve seat 7 a to open the water inlet 7 (FIG. 2) (See Fig. 1) and a hot-out state (see FIG. 1) in which the hot water inlet 6 is separated from the hot water side valve seat 6a and the hot water inlet 6 is opened to abut the water side valve seat 7a to close the water inlet 7. It can be switched.
　スライダ１２の外周面には、軸方向へ延びる溝部１２ａが周方向に間隔を存して複数形成されており、第１ケーシング部材３の内周面には、溝部１２ａに対応して軸方向へ延びる複数の突条３ｂが形成されている。溝部１２ａと突条３ｂとが係合することにより、スライダ１２のケーシング２内における回転が阻止される。また、スライダ１２の内周面には、雌ネジ部１２ｂが形成されている。 A plurality of axially extending groove portions 12a are formed on the outer peripheral surface of the slider 12 at intervals in the circumferential direction, and in the inner peripheral surface of the first casing member 3, in the axial direction corresponding to the groove portions 12a. A plurality of extending ridges 3b are formed. The rotation of the slider 12 in the casing 2 is prevented by the engagement of the groove 12a and the protrusion 3b. In addition, a female screw portion 12 b is formed on the inner circumferential surface of the slider 12.
　また、ケーシング２内には、第１ケーシング部材３の底壁とスライダ１２との間に位置させて湯水切替ネジ１３が配置されている。第１ケーシング部材３の底壁には孔部８が設けられている。湯水切替ネジ１３は、この孔部８からケーシング２の外方に露出し、図示省略した温水切替ダイヤル等が接続される接続部１３ａと、湯水切替ネジ１３の軸方向中央に設けられ、径方向に張り出して第１ケーシング部材３の底壁内面に係止することで湯水切替ネジ１３が孔部８からケーシング２の外へ脱落することを防止する環状突部１３ｂと、スライダ１２の雌ネジ部１２ｂに螺合する雄ネジ部１３ｃとを備える。 In the casing 2, a hot water / water switching screw 13 is disposed so as to be located between the bottom wall of the first casing member 3 and the slider 12. A hole 8 is provided in the bottom wall of the first casing member 3. The hot water switching screw 13 is exposed to the outside of the casing 2 from the hole 8 and is provided at the axial direction center of the hot water switching screw 13 and a connecting part 13a to which a hot water switching dial etc. (not shown) is connected. And an annular projection 13b for preventing the hot water / water switching screw 13 from falling out of the casing 2 from the hole 8 by engaging with the inner surface of the bottom wall of the first casing member 3; And a male screw 13c screwed to 12b.
　湯水切替ネジ１３を回転させると、湯水切替ネジ１３の雄ネジ部１３ｃが回転し、雄ネジ部１３ｃに螺合する雌ネジ部１２ｂを備えるスライダ１２は溝部１２ａと突条３ｂとの係合によって回転不能であるため、軸方向にスライドする。これにより、スライダ１２と一体に成形された制御弁体９も軸方向へ任意の位置に移動させることができる。 When the water / water switching screw 13 is rotated, the male screw 13c of the water / water switching screw 13 is rotated, and the slider 12 having the female screw 12b screwed to the male screw 13c is engaged by the groove 12a and the protrusion 3b. Because it can not rotate, it slides in the axial direction. Thus, the control valve body 9 integrally formed with the slider 12 can also be moved to any position in the axial direction.
　湯水切替ネジ１３の雄ネジ部１３ｃ及びスライダ１２の雌ネジ部１２ｂは、リードを大きくし湯水切替ネジ１３を小さく回転させてもスライダ１２のストロークが大きくなるように構成されている。なお、雄ネジ部１３ｃと雌ネジ部１２ｂのリードを大きくすると、スライダ１２が湯水切替ネジ１３から離隔した状態において、バイアスバネ１１の付勢力や水圧などにより、スライダ１２が湯水切替ネジ１３側へ摺動して湯水切替ネジ１３が回転してしまう虞がある。これを防止するため、湯水切替ネジ１３の環状突部１３ｂとスライダ１２との間に戻り防止バネ１４を設け、意図しないスライダ１２の摺動を防止又は抑制させている。 The male screw portion 13c of the hot water switching screw 13 and the female screw portion 12b of the slider 12 are configured such that the stroke of the slider 12 becomes large even if the lead is enlarged and the hot water switching screw 13 is rotated small. When the leads of the male screw 13c and the female screw 12b are enlarged, the slider 12 moves to the hot water switching screw 13 side by the biasing force of the bias spring 11, water pressure, etc. in a state where the slider 12 is separated from the hot water switching screw 13. There is a possibility that the hot water switching screw 13 may rotate and slide. In order to prevent this, a return prevention spring 14 is provided between the annular projection 13 b of the hot water switching screw 13 and the slider 12 to prevent or suppress unintended sliding of the slider 12.
　本実施形態の湯水切替栓１は、閉塞機構１５を備える。閉塞機構１５は、ケーシング２内であって制御弁体９とワックスエレメント１０との間に配置されたカラー部材１６（例えば、ステンレス製や合成樹脂製）と、第２ケーシング部材４の内周面に圧入して固定された環状部材１７（例えば、合成樹脂製）とを備える。 The hot water switching plug 1 of the present embodiment includes a closing mechanism 15. The closing mechanism 15 is a collar member 16 (for example, made of stainless steel or synthetic resin) disposed in the casing 2 and between the control valve body 9 and the wax element 10, and an inner peripheral surface of the second casing member 4. And an annular member 17 (for example, made of synthetic resin) fixed by press-fitting.
　図６に示すように、カラー部材１６は、円筒部１６ａと、円筒部１６ａの一端を閉塞する閉塞部１６ｂとを備える。円筒部１６ａには、開口している他端側に位置させて周方向に間隔を存して長方形状の窓部１６ｃが複数設けられている。閉塞部１６ｂには、孔部１６ｄが設けられている。第１実施形態のカラー部材１６においては、窓部１６ｃ同士の周方向の間に存在する円筒部１６ａの柱部１６ｅの部分、及び円筒部１６ａにおける窓部１６ｃよりも他端側に位置する円筒部１６ａの部分が、カラー部材１６の軸方向への移動を案内することとなり、本発明の案内部に該当する。 As shown in FIG. 6, the collar member 16 includes a cylindrical portion 16a and a closed portion 16b that closes one end of the cylindrical portion 16a. The cylindrical portion 16a is provided with a plurality of rectangular window portions 16c positioned on the other end side opening and spaced in the circumferential direction. A hole 16 d is provided in the closed portion 16 b. In the collar member 16 of the first embodiment, a portion of the column portion 16e of the cylindrical portion 16a existing between the windows 16c in the circumferential direction, and a cylinder positioned on the other end side of the window portion 16c in the cylindrical portion 16a. The portion of the portion 16a guides the movement of the collar member 16 in the axial direction, and corresponds to the guide portion of the present invention.
　この案内部は、環状部材１７に設けることもできる。この場合、環状部材１７からカラー部材１６の円筒部１６ａの外周まで伸びる柱部を設ければよい。しかしながら、本実施形態においては、環状部材１７をケーシング２に圧入しているため、環状部材１７に柱部を設けると圧入のときに柱部が折れないように注意しながら慎重に圧入する必要があり、組み付けが面倒である。 The guide can also be provided on the annular member 17. In this case, a pillar extending from the annular member 17 to the outer periphery of the cylindrical portion 16 a of the collar member 16 may be provided. However, in the present embodiment, since the annular member 17 is press-fit into the casing 2, if the annular member 17 is provided with a pillar, it is necessary to carefully press-in while carefully avoiding the pillar from breaking when press-fitting. Yes, assembly is troublesome.
　そこで、本実施形態のように案内部を環状部材１７の内側に位置するように構成することにより、環状部材１７を容易にケーシング２に組み付けられる様になり、湯水切替栓１全体としても製造が容易となる。 Therefore, by configuring the guide portion to be positioned inside the annular member 17 as in the present embodiment, the annular member 17 can be easily assembled to the casing 2, and the manufacturing is possible even with the hot and cold water switching valve 1 as a whole. It becomes easy.
　ワックスエレメント１０のワックス筺体１０ａは、閉塞部１６ｂの孔部１６ｄに挿通され、カラー部材１６の閉塞部１６ｂは、ワックス筺体１０ａの環状突出部１０ｅに係止される。 The wax rod body 10a of the wax element 10 is inserted into the hole 16d of the closed portion 16b, and the closed portion 16b of the collar member 16 is engaged with the annular projection 10e of the wax member 10a.
　カラー部材１６の外径は、環状部材１７の内径よりも小径に設定されている。バイアスバネ１１の一端は、カラー部材１６の閉塞部１６ｂを介してワックスエレメント１０の環状突出部１０ｅで受けられている。 The outer diameter of the collar member 16 is set smaller than the inner diameter of the annular member 17. One end of the bias spring 11 is received by the annular protrusion 10 e of the wax element 10 through the closed portion 16 b of the collar member 16.
　なお、カラー部材１６の形状は図６のものに限らない。例えば、図７に示す他のカラー部材の例のように、円筒部１６ａの他端から環状部材１７の内側に向かって延びる柱部１６ｅを備えるものであってもよい。柱部１６ｅが本発明の案内部に該当する。このように構成することにより、柱部を備えていない環状部材１７を容易にケーシング２に圧入することができ、湯水切替栓１全体としても製造が容易となる。また、柱部１６ｅは無くてもよく、柱部１６ｅに代えて、環状部材１７の一端からカラー部材１６の円筒部１６ａの外側に向かって延びる案内部を設けてもよい。 The shape of the collar member 16 is not limited to that shown in FIG. For example, as in the example of another collar member shown in FIG. 7, a pillar 16 e may be provided which extends from the other end of the cylindrical portion 16 a toward the inside of the annular member 17. The pillar portion 16e corresponds to the guiding portion of the present invention. With such a configuration, the annular member 17 not provided with the column portion can be easily press-fitted into the casing 2, and the manufacturing can be facilitated even as the entire hot water / water switching plug 1. Further, the column portion 16e may not be provided, and instead of the column portion 16e, a guide portion extending from one end of the annular member 17 to the outside of the cylindrical portion 16a of the collar member 16 may be provided.
　以下、第１実施形態の湯水切替栓１の使用方法について説明する。まず、水のみを使用する場合には、湯水切替ネジ１３を回転させてスライダ１２を湯水切替ネジ１３側に引き寄せることにより、スライダ１２と一体に成形された制御弁体９も湯水切替ネジ１３側に引き寄せられる。これにより、制御弁体９が湯側弁座６ａに当接して湯流入口６を閉塞し水流入口７のみが開口する出水状態となる。 Hereinafter, the usage method of the hot water switching plug 1 of 1st Embodiment is demonstrated. First, when only water is used, the control valve 9 integrally formed with the slider 12 is also made on the hot water switching screw 13 side by rotating the hot water switching screw 13 and pulling the slider 12 toward the hot water switching screw 13 side. Be drawn to As a result, the control valve body 9 abuts against the hot water side valve seat 6 a to close the hot water inlet 6, and only the water inlet 7 is opened.
　湯水切替ネジ１３を反対側に回転させると、制御弁体９により水流入口７が閉塞され、湯流入口６が開口する出湯状態となる。 When the hot water switching screw 13 is rotated in the opposite direction, the water inlet 7 is closed by the control valve body 9, and the hot water inlet 6 is opened.
　また、ケーシング２内を流れる湯水の温度が所定温度以上になると、ワックス筺体１０ａ内のワックスが膨張してダイヤフラム（図示省略）が膨らみ、ピストン１０ｃがガイド部材１０ｂの孔部１０ｄから突出する。これにより、ワックスエレメント１０によって、カラー部材１６が押圧され、カラー部材１６と張出部としての環状部材１７とが重なり合って流出口５からの湯水の流出量が減少する。このため、高温の湯水が流出口５から流れ出ることを防止又は抑制することができ、簡易な構成によって、湯水切替栓１の安全性を既存の高性能の湯水混合栓と同程度に維持することができる。 Further, when the temperature of the hot and cold water flowing in the casing 2 reaches a predetermined temperature or more, the wax in the wax housing 10a expands and the diaphragm (not shown) expands, and the piston 10c protrudes from the hole 10d of the guide member 10b. As a result, the collar member 16 is pressed by the wax element 10, and the collar member 16 and the annular member 17 as the overhang portion overlap with each other, and the outflow amount of hot and cold water from the outlet 5 is reduced. For this reason, it is possible to prevent or suppress high temperature hot water from flowing out from the outlet 5, and maintain the safety of the hot water switching valve 1 to the same extent as the existing high performance hot water mixing valve by a simple configuration. Can.
　また、ガイド部材１０ｂからピストン１０ｃが突出して、ワックスエレメント１０が延伸すると、ワックスエレメント１０によりバイアスバネ１１を介して制御弁体９が押圧されて、制御弁体９により湯流入口６が閉塞されるようにバイアスバネ１１及び戻り防止バネ１４の付勢力が設定されている。そして、制御弁体９が湯流入口６側に押圧されることにより、湯水切替ネジ１３が回転して出水状態の位置に戻される。 Further, when the piston 10c protrudes from the guide member 10b and the wax element 10 extends, the control valve 9 is pressed by the wax element 10 via the bias spring 11, and the hot water inlet 6 is closed by the control valve 9. The biasing force of the bias spring 11 and the return prevention spring 14 is set to And when the control valve body 9 is pressed by the hot water inlet 6 side, the hot water switching screw 13 rotates and is returned to the position of the water discharge state.
　本実施形態の湯水切替栓１によれば、従来の湯水混合栓の温度調整用の感温素子が内蔵されていた箇所に、閉塞機構１５と、閉塞機構１５を作動させるための感温素子としてのワックスエレメント１０を設けるだけで、所定温度以上の湯が出湯された場合に、流出口から流出する湯の量を減少させることができる。 According to the hot water / water switching plug 1 of the present embodiment, the closing mechanism 15 and the temperature sensing element for operating the closing mechanism 15 in the place where the temperature sensing element for temperature control of the conventional hot and cold water mixing valve is incorporated. By providing the wax element 10, it is possible to reduce the amount of the hot water flowing out from the outlet when the hot water having a predetermined temperature or more is drawn.
　ゆえに、既存の高性能の温調機能を有する湯水混合栓のケーシングや湯水切替ネジなどを共通部品とする湯水切替栓を製造することができ、お風呂場の水栓への組み付けも従来の高性能の湯水混合栓と同様に組み付けられるため、湯水切替栓１の組み付けが容易となる。従って、安全性を維持しつつ、製造コストを抑えた湯水切替栓１を提供することができる。 Therefore, it is possible to manufacture a hot water / water switching plug having as a common part the existing hot / cold water mixing valve casing having high-performance temperature control function, a hot water / water switching screw, etc. As the hot and cold water mixing valve of the performance is assembled in the same manner, the hot and cold water switching valve 1 can be easily assembled. Therefore, the hot and cold water switching valve 1 can be provided in which the manufacturing cost is reduced while maintaining the safety.
　また、本実施形態の湯水切替栓１によれば、ケーシング２内を流れる湯水の温度が所定温度以上である場合には、カラー部材１６と張出部としての環状部材１７とが重なり合って流出口５からの湯水の流出量が減少するため、高温の湯水が流出口５から流れ出ることを防止又は抑制することができ、簡易な構成によって、湯水切替栓１の安全性を既存の高性能の湯水混合栓と同程度に維持することができる。 Further, according to the hot water switching plug 1 of the present embodiment, when the temperature of the hot water flowing in the casing 2 is equal to or higher than the predetermined temperature, the collar member 16 and the annular member 17 as the overhanging portion overlap and flow out. Since the outflow amount of hot water from 5 decreases, high temperature hot water can be prevented or suppressed from flowing out from the outlet 5, and the safety of the hot water switching valve 1 can be improved by the simple configuration. It can be maintained at the same level as the mixing stopper.
　また、湯水切替栓１では、流出する湯水が所定温度以上である場合には、閉塞機構１５が閉じて、湯水の流出量が減少するため、この湯水の流出量の減少により、利用者に所定温度以上の湯水が流出していることを報知することができる。 Further, in the hot water switching plug 1, when the outgoing hot water is at a predetermined temperature or higher, the closing mechanism 15 is closed, and the outflow amount of hot water decreases, so the outflow amount of the hot water decreases and thus the user is given predetermined. It can be informed that hot water with a temperature higher than that is flowing out.
　また、本実施形態の湯水切替栓１によれば、カラー部材１６から案内部としての窓部１６ｃ同士の周方向の間の部分、及び窓部１６ｃよりも制御弁体９側の部分が環状部材１７の径方向内側に延びており、この部分によって、カラー部材１６が環状部材１７の内側へスムーズに移動できるように案内する。従って、カラー部材１６が張出部としての環状部材１７の端部に引っ掛かることなく環状部材１７の内側へ収容されて、カラー部材１６と環状部材１７とを滑らかに重なり合わせることができる。 Further, according to the hot water / water switching plug 1 of the present embodiment, a portion between the collar member 16 in the circumferential direction between the window portions 16c as the guide portion and a portion closer to the control valve body 9 than the window portion 16c are annular members. Extending radially inward 17, this portion guides the collar member 16 so that it can move smoothly inside the annular member 17. Therefore, the collar member 16 is accommodated inside the annular member 17 without being caught by the end of the annular member 17 as the overhanging part, and the collar member 16 and the annular member 17 can be smoothly overlapped.
　また、閉塞機構１５が閉塞状態でない場合には、カラー部材１６と環状部材１７との間に隙間が生じており、カラー部材１６の外周側には、湯水が流れる隙間が形成される。従って、カラー部材１６がぐらつき易い。しかしながら、カラー部材１６から環状部材１７の内側に向かって上述した案内部が伸びていれば、閉塞機構１５が閉塞状態でない場合においても、カラー部材１６に設けられた案内部を環状部材１７の内側へ位置させておくことができ、カラー部材のぐらつきを防止し又は抑制させることができる。更に、カラー部材１６に案内部を設けることによって、柱部を備えていない環状部材１７を容易にケーシング２に圧入することができ、湯水切替栓１全体としても製造が容易となる。 Further, when the closing mechanism 15 is not in the closed state, a gap is generated between the collar member 16 and the annular member 17, and a gap through which the water flows is formed on the outer peripheral side of the collar member 16. Therefore, the collar member 16 is easily wobbled. However, if the above-described guide portion extends from the collar member 16 toward the inside of the annular member 17, the guide portion provided on the collar member 16 is the inner side of the annular member 17 even when the closing mechanism 15 is not in the closed state. The collar member can be positioned to prevent or suppress wobble of the collar member. Furthermore, by providing the guide portion on the collar member 16, the annular member 17 not provided with the column portion can be easily press-fitted to the casing 2, and the manufacturing as a whole of the hot water / water switching plug 1 becomes easy.
　また、本実施形態の湯水切替栓１によれば、ケーシング２に張出部を一体成型する必要がない。このため、張出部とカラー部材１６との隙間を本実施形態の張出部としての環状部材１７で調節することができ、ケーシング２にカラー部材１６との隙間を適切に設定すべく高精度の成形が要求されることなく、湯水切替栓１の製造コストを抑えることができる。 Moreover, according to the hot water switching plug 1 of the present embodiment, it is not necessary to integrally mold the overhanging portion on the casing 2. For this reason, the gap between the overhanging portion and the collar member 16 can be adjusted by the annular member 17 as the overhanging portion in the present embodiment, and the casing 2 is highly accurate in order to appropriately set the gap with the collar member 16 The manufacturing cost of the hot water switching plug 1 can be suppressed without requiring molding of the above.
　また、本実施形態の湯水切替栓１によれば、従来から高性能の湯水混合栓に用いられている既存の制御弁体９を利用して閉塞機構１５を構成するため、既存部品を有効活用して、安全性を確保した湯水切替栓１を低廉なコストで提供することができる。 Further, according to the hot water / water switching plug 1 of the present embodiment, the existing control valve body 9 is conventionally used for a high performance hot / cold water mixing valve to construct the closing mechanism 15, so that the existing parts can be effectively used. Thus, it is possible to provide the hot and cold water switching plug 1 with secured safety at a low cost.
　また、本実施形態の湯水切替栓１によれば、感温素子としてのワックスエレメント１０の延伸によって制御弁体９により湯流入口６が閉塞されるとともに湯水切替ネジ１３も回転する。従って、ワックスエレメント１０が冷えて縮んでも、湯水切替ネジ１３が制御弁体９によって湯流入口６を閉塞し水流入口７を開口させる出水状態に切り替えられているため、湯流入口６が閉塞された状態を維持することができ、湯流入口６が開口することによって再び所定温度以上の湯水が流出口５から流出することを防止することができる。また、所定温度以上の湯水が再度流出口から流出することを阻止する阻止状態を既存部品の湯水切替ネジ１３で維持させることができるため、阻止状態を維持させるための機構を別途湯水切替栓に設ける必要がなく、部品点数および製造コストを増加させることなく、阻止状態の維持機能を設けることができる。 Further, according to the hot water / water switching plug 1 of the present embodiment, the hot water inlet 6 is closed by the control valve body 9 and the hot water switching screw 13 is also rotated by the extension of the wax element 10 as the temperature sensing element. Therefore, even if the wax element 10 cools and shrinks, the hot water / water switching screw 13 is switched to the water discharging state in which the hot water inlet 6 is closed by the control valve body 9 and the water inlet 7 is opened. It is possible to maintain the hot state and open the hot water inlet 6 to prevent the hot water having a predetermined temperature or more from flowing out from the outflow port 5 again. In addition, since a blocked state that blocks the flow of hot water at a predetermined temperature or more out of the outlet can be maintained by the hot water switching screw 13 of the existing part, a mechanism for maintaining the blocked state is separately used as a hot water switching plug There is no need to provide it, and the function of maintaining the blocking state can be provided without increasing the number of parts and the manufacturing cost.
　なお、第１実施形態においては、閉塞機構１５として、カラー部材１６と、環状部材１７と、制御弁体９とで構成されたものを説明した。しかしながら、本発明の閉塞機構は、必ずしも制御弁体９を構成要素として備えていなくてもよい。例えば、閉塞機構を、カラー部材１６と環状部材１７とで構成し、所定温度以上の湯水が流出している場合であっても、制御弁体９が湯流入口６を閉塞しないように、バイアスバネ１１及び戻り防止バネ１４の弾性力を設定してもよい。 In the first embodiment, the closing mechanism 15 has been described which is configured by the collar member 16, the annular member 17, and the control valve body 9. However, the closing mechanism of the present invention may not necessarily include the control valve body 9 as a component. For example, the closing mechanism is configured by the collar member 16 and the annular member 17, and the bias is applied so that the control valve body 9 does not close the hot water inlet 6 even when hot water having a predetermined temperature or more flows out. The elastic force of the spring 11 and the return prevention spring 14 may be set.
　また、逆に、本発明の閉塞機構は、必ずしもカラー部材１６及び環状部材１７を構成要素として備えていなくてもよい。例えば、閉塞機構を、制御弁体９で構成し、所定温度以上の湯水が流出している場合には、制御弁体９が湯流入口６を閉塞することにより、高温の湯が流出口５から流出することを防止して、安全性を維持するようにしてもよい。 Moreover, conversely, the closing mechanism of the present invention does not necessarily have to include the collar member 16 and the annular member 17 as components. For example, when the closing mechanism is constituted by the control valve body 9 and hot water having a predetermined temperature or more flows out, the high temperature hot water flows out by the control valve body 9 closing the hot water inlet 6. It may be possible to maintain the safety by preventing it from flowing out.
　また、第１実施形態においては、本発明の張出部として、第２ケーシング部材４と別体の環状部材１７を固定して、第２ケーシング部材４をカラー部材１６の外径に合わせて高精度に成形する必要がないものを説明したが、本発明の張出部はこれに限らない。例えば、張出部は、第２ケーシング部材４と一体に成形してもよい。 In the first embodiment, the annular member 17 separate from the second casing member 4 is fixed as the overhang portion of the present invention, and the second casing member 4 is adjusted to the outer diameter of the collar member 16 to be high. Although the thing which does not need to be shape | molded to the precision was demonstrated, the overhang | projection part of this invention is not restricted to this. For example, the overhanging portion may be integrally formed with the second casing member 4.
　［第２実施形態］
　図８を参照して、第２実施形態の湯水切替栓１を説明する。なお、第１実施形態と同一の構成は同一の符号を付して説明を省略する。第２実施形態の湯水切替栓１は、カラー部材及び環状部材を備えておらず、ケーシング２内を流れる湯水の温度が所定温度以上となりワックスエレメント１０がピストン１０ｃを突出させて全体が軸方向へ延びると、ワックス筺体１０ａが制御弁体９を湯流入口６を閉塞させる方向へ押圧する。従って、第２実施形態の閉塞機構１５は制御弁体９のみとなる。第２実施形態の他の構成は、第１実施形態と同様である。 Second Embodiment
The hot and cold water switching valve 1 of the second embodiment will be described with reference to FIG. The same components as those of the first embodiment are denoted by the same reference numerals and the description thereof will be omitted. The hot water switching plug 1 of the second embodiment does not have a collar member and an annular member, and the temperature of hot water flowing through the inside of the casing 2 becomes equal to or higher than a predetermined temperature. When extended, the wax housing 10 a presses the control valve body 9 in the direction to close the hot water inlet 6. Therefore, the closing mechanism 15 of the second embodiment is only the control valve body 9. The other configuration of the second embodiment is the same as that of the first embodiment.
　第２実施形態の湯水切替栓１によっても、第１実施形態と同様に、従来の湯水混合栓の温度調整用の感温素子が内蔵されていた箇所に閉塞機構としての制御弁体９を作動させるための感温素子としてのワックスエレメント１０を設けるだけで、所定温度以上の湯水がケーシング２内を流れる場合に、湯流入口６を制御弁体９で閉塞して流出口５から流出する湯の量を減少させることができる。従って、第２実施形態の湯水切替栓１によれば、流出口５から流出する水の量を増加させることにより、流出口５から流出する湯水の温度を所定温度未満に抑えることができる。 Also by the hot water / water switching plug 1 of the second embodiment, as in the first embodiment, the control valve body 9 as the closing mechanism is operated at the location where the temperature sensing element for temperature control of the conventional hot water / water mixing valve is incorporated. The hot water inlet 6 is closed by the control valve body 9 and the hot water flows out from the outlet 5 only when the hot water having a predetermined temperature or more flows through the inside of the casing 2 only by providing the wax element 10 as a temperature sensing element for Can reduce the amount of Therefore, according to the hot water switching plug 1 of the second embodiment, by increasing the amount of water flowing out from the outlet 5, the temperature of hot water flowing out from the outlet 5 can be suppressed to less than the predetermined temperature.
　また、高性能の温調機能を有する湯水混合栓のケーシングや湯水切替ネジなどを共通部品とする湯水切替栓を製造することができ、お風呂場の水栓への組み付けも従来の高性能の湯水混合栓と同様に組み付けられるため、湯水切替栓の組み付けが容易となる。従って、安全性を維持しつつ、製造コストを抑えた湯水切替栓を提供することができる。 In addition, it is possible to manufacture hot and cold water switching plugs that use the casing of hot and cold water mixing taps that have high-performance temperature control functions and hot and cold water switching screws as common parts. As the hot and cold water mixing valve is assembled in the same manner, the hot and cold water switching valve can be easily assembled. Therefore, it is possible to provide a hot water switching plug whose manufacturing cost is reduced while maintaining safety.
　また、本実施形態の湯水切替栓１によれば、既存の制御弁体９を利用して閉塞機構１５を構成するため、カラー部材及び環状部材等の新たな追加部品を利用せずに既存部品を有効活用して、安全性を確保した湯水切替栓１を低廉なコストで提供することができる。 Further, according to the hot water / water switching plug 1 of the present embodiment, since the closing mechanism 15 is configured by using the existing control valve body 9, the existing parts can be used without using new additional parts such as the collar member and the annular member. It is possible to provide the hot and cold water switching valve 1 securing the safety at a low cost, by effectively utilizing the
　また、本実施形態の湯水切替栓１によれば、ワックスエレメント１０の延伸によって制御弁体により湯流入口が閉塞されるとともに湯水切替ネジ１３も回転する。従って、ワックスエレメント１０が冷えて縮んでも、湯水切替ネジ１３が制御弁体９によって湯流入口６を閉塞し水流入口を開口させる出水状態に切り替えられているため、再び所定温度以上の湯水が流出口から流出することを防止することができる。また、所定温度以上の湯水が再度流出口５から流出することを阻止する阻止状態を既存部品の湯水切替ネジで維持させることができるため、阻止状態を維持させるための機構を別途湯水切替栓１に設ける必要がなく、部品点数および製造コストを増加させることなく、阻止状態の維持機能を設けることができる。 Further, according to the hot water switching plug 1 of the present embodiment, the hot water inlet is blocked by the control valve body by the extension of the wax element 10 and the hot water switching screw 13 is also rotated. Therefore, even if the wax element 10 cools and shrinks, the hot water switching screw 13 is switched to a water discharging state in which the hot water inlet 6 is closed by the control valve body 9 and the water inlet is opened. It is possible to prevent the outflow from the outlet. In addition, since it is possible to maintain the blocking state that prevents the boiling water having the predetermined temperature or more from flowing out again from the outlet 5 by the hot water switching screw of the existing part, a mechanism for maintaining the blocking state is separately provided It is not necessary to provide a maintenance function of the blocking state without increasing the number of parts and the manufacturing cost.
　［第３実施形態］
　図９を参照して、第３実施形態の湯水切替栓１を説明する。なお、第１実施形態と同一の構成は同一の符号を付して説明を省略する。第３実施形態の湯水切替栓１は、第２実施形態と同様に、閉塞機構１５が制御弁体９のみであるものの、ワックスエレメント１０は、制御弁体９に直接接触することなく、バイアスバネ１１を介して制御弁体９を押圧するように構成されている。また、第３実施形態の制御弁体９は、第１実施形態や第２実施形態のようにスライダ１２と一体成型されておらず、別体に構成されており、制御弁体９とスライダ１２との間には、バイアスバネ１８が配置されている。第３実施形態においては、スライダ１２は、バイアスバネ１８を介して制御弁体９を押圧することとなる。 Third Embodiment
The hot and cold water switching valve 1 according to the third embodiment will be described with reference to FIG. The same components as those of the first embodiment are denoted by the same reference numerals and the description thereof will be omitted. In the hot water / water switching plug 1 of the third embodiment, as in the second embodiment, although the closing mechanism 15 is only the control valve body 9, the wax element 10 does not directly contact the control valve body 9 and bias spring The control valve body 9 is configured to be pressed through 11. Also, the control valve body 9 of the third embodiment is not integrally molded with the slider 12 as in the first embodiment or the second embodiment, and is configured separately, and the control valve body 9 and the slider 12 And a bias spring 18 is disposed therebetween. In the third embodiment, the slider 12 presses the control valve body 9 via the bias spring 18.
　本実施形態の湯水切替栓１によれば、従来の湯水混合栓の温度調整用の感温素子が内蔵されていた箇所に制御弁体９を湯流入口６閉塞側へ移動させるためのワックスエレメント１０を設けるだけで、所定温度以上の湯が出湯された場合に、湯流入口６を閉じ、流出口５から流出する湯の量を減少させることができる。これにより、湯流入口６からケーシング２内に供給される湯の量が減少し、水流入口７から流入する水の流量が増加して、流出口５から流出する湯水の温度を所定温度未満に低下させ、安全性を確保することができる。 According to the hot water / water switching plug 1 of the present embodiment, a wax element for moving the control valve body 9 to the hot water inlet 6 closed side to the place where the temperature-sensitive element for temperature control of the conventional hot water / water mixing valve is incorporated. The provision of 10 can close the hot water inlet 6 and reduce the amount of hot water flowing out from the hot water outlet 5 when hot water having a predetermined temperature or more is discharged. As a result, the amount of hot water supplied from the hot water inlet 6 into the casing 2 is reduced, the flow rate of water flowing in from the water inlet 7 is increased, and the temperature of hot water flowing out from the outlet 5 is made lower than a predetermined temperature. It is possible to reduce and secure safety.
　また、高性能の温調機能を有する湯水混合栓のケーシングや湯水切替ネジなどを共通部品とする湯水切替栓１を製造することができ、お風呂場の水栓への組み付けも従来の高性能の湯水混合栓と同様に組み付けられるため、湯水切替栓の組み付けが容易となる。従って、安全性を維持しつつ、製造コストを抑えた湯水切替栓を提供することができる。 In addition, it is possible to manufacture the hot and cold water switching valve 1 having the hot water / water mixing faucet casing having high-performance temperature control function and the hot and cold water switching screw as a common part. Since the hot and cold water mixing valve is assembled in the same manner as in the above, the hot and cold water switching valve can be easily assembled. Therefore, it is possible to provide a hot water switching plug whose manufacturing cost is reduced while maintaining safety.
　また、本実施形態の湯水切替栓１によれば、高性能の湯水混合栓で用いられる既存の制御弁体を利用して閉塞機構１５を構成するため、カラー部材及び環状部材等の新たな追加部品を利用せずに既存部品を有効活用して、安全性を確保した湯水切替栓１を低廉なコストで提供することができる。 Further, according to the hot water / water switching plug 1 of the present embodiment, since the closing mechanism 15 is configured by using the existing control valve body used in the high performance hot water / water mixing plug, new additions such as a collar member and an annular member etc. It is possible to provide the hot and cold water switching valve 1 securing safety at a low cost by effectively using existing parts without using parts.
　また、本実施形態の湯水切替栓１によれば、感温素子としてのワックスエレメント１０の延伸によって制御弁体９により湯流入口６が閉塞されるとともに湯水切替ネジ１３も回転して、出水状態の位置に戻る。従って、ワックスエレメント１０が冷えて縮んでも、湯水切替ネジ１３は出水状態の位置を維持することとなるため、再び所定温度以上の湯水が流出口から流出することを防止することができる。また、所定温度以上の湯水が再度流出口から流出することを阻止する阻止状態を既存部品の湯水切替ネジ１３で維持させることができるため、阻止状態を維持させるための機構を別途湯水切替栓１に設ける必要がなく、部品点数および製造コストを増加させることなく、阻止状態の維持機能を設けることができる。 Further, according to the hot water / water switching plug 1 of the present embodiment, the hot water inlet 6 is closed by the control valve body 9 by the extension of the wax element 10 as the temperature sensing element and the hot water switching screw 13 is also rotated. Return to the position of. Therefore, even if the wax element 10 cools and shrinks, the hot water switching screw 13 maintains the position of the water discharge state, so that it is possible to prevent the hot water having a predetermined temperature or more from flowing out again from the outlet. In addition, since it is possible to maintain the blocking state that prevents the hot water having a predetermined temperature or more from flowing out again from the outlet with the hot water switching screw 13 of the existing part, the mechanism for maintaining the blocking state It is not necessary to provide a maintenance function of the blocking state without increasing the number of parts and the manufacturing cost.
　なお、第３実施形態においては、ワックスエレメント１０が延伸すると、バイアスバネ１１、制御弁体９、バイアスバネ１８、を介してスライダ１２が押圧されて移動し、湯水切替ネジ１３が回転して出水状態となる位置に戻るものを説明した。しかしながら、第３実施形態において、ワックスエレメント１０が延伸してもスライダ１２が移動せず湯水切替ネジ１３が回転しないように、２つのバイアスバネ１１、１８、及び戻り防止バネ１４の弾性力を設定してもよい。かかる構成によっても、ワックスエレメント１０の延伸により、バイアスバネ１１を介して制御弁体９を湯流入口６が閉塞される側へ移動させて出水状態とし、所定温度以上の湯水が流出口５から流れ出ることを防止するという本発明の効果を得ることができる。 In the third embodiment, when the wax element 10 is extended, the slider 12 is pressed and moved via the bias spring 11, the control valve body 9, and the bias spring 18, and the hot water switching screw 13 is rotated to discharge water It explained what went back to the position which becomes a state. However, in the third embodiment, the elastic forces of the two bias springs 11 and 18 and the return prevention spring 14 are set so that the slider 12 does not move and the hot water switching screw 13 does not rotate even when the wax element 10 is extended. You may Also according to this configuration, the control valve body 9 is moved to the side where the hot water inlet 6 is closed through the bias spring 11 by the extension of the wax element 10 to make the hot water state, and hot water having a predetermined temperature or more is The effect of the present invention of preventing flowing out can be obtained.
１…湯水切替栓、　２…ケーシング、　５…流出口、　６…湯流入口、　７…水流入口、
　９…制御弁体、　１０…ワックスエレメント（感温素子）、　１２…スライダ、　１３…湯水切替ネジ、　１５…閉塞機構、　１６…カラー部材、　１６ｅ…柱部、　１７…環状部材（張出部）。 1 ... hot water switch valve, 2 ... casing, 5 ... outlet, 6 ... hot water inlet, 7 ... water inlet,
9: control valve body 10: wax element (temperature sensitive element) 12: slider 13: hot water switching screw 15: closing mechanism 16: collar member 16e: pillar portion 17: annular member (extension portion) .

Claims (6)

  1. 　筒状のケーシングと、
    　前記ケーシングの周壁に軸方向へ互いに間隔を存して設けられた湯流入口及び水流入口と、
    　前記ケーシングの前記水流入口側の端部に設けられた流出口と、
    　前記ケーシング内に軸方向に摺動自在に設けられ、前記ケーシング内を摺動することにより、前記湯流入口を閉塞し且つ前記水流入口を開口して水を前記流出口から流出させる出水状態と、前記湯流入口を開口し且つ前記水流入口を閉塞して湯を前記流出口から流出させる出湯状態との何れかの状態に切替可能な制御弁体と、
    　前記ケーシング内で湯流入口側の端部に回転自在に配置され、一部が前記ケーシングの軸方向外方へ露出する湯水切替ネジと、
    　前記ケーシング内に回転を阻止された状態で前記湯水切替ネジと螺合して配置され、前記湯水切替ネジを回転させることにより前記ケーシング内を軸方向へ摺動するスライダと、
    　前記ケーシング内に配置され、前記ケーシング内を流れる湯水の温度変化に応じて伸縮する感温素子と、
    　を備え、前記制御弁体は、前記湯水切替ネジの回転によって進退する前記スライダに応じて進退するように構成された湯水切替栓であって、
    　前記感温素子の伸縮を利用して、前記ケーシング内を流れる湯水が所定温度以上となるときに前記流出口から流出させる湯の量を減少させる閉塞機構を備えることを特徴とする湯水切替栓。     With a cylindrical casing,
    A water inlet and a water inlet provided axially spaced from each other on the peripheral wall of the casing;
    An outlet provided at an end of the water inlet side of the casing;
    It is provided axially slidably in the casing, and by sliding in the casing, the hot water inlet is closed and the water inlet is opened to allow water to flow out from the outlet. A control valve body which can be switched to any state of an outlet state where the hot water inlet is opened and the hot water is discharged from the outlet by closing the water inlet;
    A hot water / water switching screw which is rotatably disposed at an end on the hot water inlet side in the casing and a part of which is exposed outward in the axial direction of the casing;
    A slider which is disposed in the casing in a state of being prevented from rotating and is screwed with the hot water switching screw, and which slides in the casing in the axial direction by rotating the hot water switching screw;
    A temperature sensitive element disposed in the casing and capable of expanding and contracting according to a temperature change of hot and cold water flowing in the casing;
    The control valve body is a hot water / water switching valve configured to move forward / back in response to the slider moving forward / backward by rotation of the hot water / water switching screw,
    A hot water switching plug comprising a closing mechanism for reducing an amount of hot water to be discharged from the outlet when hot water flowing in the casing reaches a predetermined temperature or more by utilizing expansion and contraction of the temperature sensing element.
  2. 　請求項１に記載の湯水切替栓であって、
    　前記閉塞機構は、カラー部材と、前記ケーシングの内周面に設けられた内方に張り出す張出部とで構成され、
    　前記感温素子の延伸によって前記カラー部材が押圧されて前記カラー部材と前記張出部とが重なり合うことにより、前記流出口から流出される湯水の量を減少させることを特徴とする湯水切替栓。     It is a hot water switching plug according to claim 1, and
    The closing mechanism includes a collar member and an inward projecting portion provided on an inner circumferential surface of the casing.
    A hot water / water switching plug according to claim 1, characterized in that the amount of hot water flowing out from the outflow port is reduced by the collar member being pressed by the extension of the temperature sensitive element and the collar member and the overhang portion overlapping each other.
  3. 　請求項２に記載の湯水切替栓であって、
    　前記張出部は、前記ケーシング内に固定された環状部材で構成されることを特徴とする湯水切替栓。     It is a hot water switching plug according to claim 2, and
    The hot and cold water switching valve according to claim 1, wherein the overhanging portion is formed of an annular member fixed in the casing.
  4. 　請求項２又は請求項３に記載の湯水切替栓であって、
    　前記カラー部材には、前記張出部の内側に向かって延びる案内部が設けられていることを特徴とする湯水切替栓。     It is a hot water switching plug according to claim 2 or claim 3,
    The hot and cold water switching valve according to claim 1, wherein the collar member is provided with a guide portion extending toward the inside of the overhang portion.
  5. 　請求項１から請求項４の何れか１項に記載の湯水切替栓であって、
    　前記閉塞機構は、前記制御弁体によって少なくとも一部が構成され、
    　前記感温素子の延伸によって前記制御弁体が押圧されて前記制御弁体によって前記湯流入口が閉塞されて、前記流出口から流出される湯の量を減少させることを特徴とする湯水切替栓。     It is a hot water switching plug according to any one of claims 1 to 4,
    The closing mechanism is at least partially configured by the control valve body,
    A hot water / water switching plug characterized in that the control valve body is pressed by the extension of the temperature sensing element and the hot water inlet is closed by the control valve body to reduce the amount of hot water flowing out from the outflow port. .
  6. 　請求項５に記載の湯水切替栓であって、
    　前記感温素子の延伸によって、前記制御弁体が押圧されて前記制御弁体によって前記湯流入口が閉塞されるときに、前記制御弁体によって前記スライダも押し戻されて、前記湯水切替ネジが回転することを特徴とする湯水切替栓。     It is a hot water switching plug according to claim 5, and
    When the control valve body is pressed by the extension of the temperature sensing element and the hot water inlet is closed by the control valve body, the slider is also pushed back by the control valve body, and the hot water switching screw rotates. Hot and cold water switching valve characterized by having.
PCT/JP2018/010853 2017-06-19 2018-03-19 Hot water/cold water switching faucet WO2018235359A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880040151.6A CN111033100B (en) 2017-06-19 2018-03-19 Cold and hot water switching tap

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-119652 2017-06-19
JP2017119652A JP6847777B2 (en) 2017-06-19 2017-06-19 Hot water switching tap

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JP7112292B2 (en) * 2018-09-06 2022-08-03 日本サーモスタット株式会社 hot water mixer tap
CN111998098B (en) * 2020-09-03 2022-02-08 浙江宁锚阀门有限公司 Multi-pipe control valve
CN113080701B (en) * 2021-04-16 2022-08-19 泉州市默然信息技术有限公司 Water dispenser water receiving device for preventing blind person from being scalded

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