WO2018235359A1 - 湯水切替栓 - Google Patents

湯水切替栓 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
English (en)
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/zh
Publication of WO2018235359A1 publication Critical patent/WO2018235359A1/ja

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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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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Multiple-Way Valves (AREA)
  • Temperature-Responsive Valves (AREA)
  • Domestic Plumbing Installations (AREA)
PCT/JP2018/010853 2017-06-19 2018-03-19 湯水切替栓 WO2018235359A1 (ja)

Priority Applications (1)

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CN201880040151.6A CN111033100B (zh) 2017-06-19 2018-03-19 冷热水切换龙头

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JP7112292B2 (ja) * 2018-09-06 2022-08-03 日本サーモスタット株式会社 湯水混合栓
CN111998098B (zh) * 2020-09-03 2022-02-08 浙江宁锚阀门有限公司 一种多管控制阀
CN113080701B (zh) * 2021-04-16 2022-08-19 泉州市默然信息技术有限公司 一种预防盲人烫伤的饮水机接水装置

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JP2009180302A (ja) * 2008-01-31 2009-08-13 Nippon Thermostat Co Ltd 湯水混合栓

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CN2474841Y (zh) * 2001-04-16 2002-01-30 张明亮 冷热水混水自动恒温阀
CN101000108A (zh) * 2006-01-11 2007-07-18 北京菁华资源科技有限公司 大口径恒温混水阀
CN101070916A (zh) * 2006-05-11 2007-11-14 叶萍 一种双金属温度控制阀门
JP4805088B2 (ja) * 2006-09-11 2011-11-02 株式会社三栄水栓製作所 湯水混合栓
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JP2009180302A (ja) * 2008-01-31 2009-08-13 Nippon Thermostat Co Ltd 湯水混合栓

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JP2019002537A (ja) 2019-01-10
JP6847777B2 (ja) 2021-03-24
TW201905364A (zh) 2019-02-01
CN111033100B (zh) 2021-11-02

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