JP2005098640A - Combination faucet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive combination faucet of high usability capable of adjusting a temperature of the mixed water by a water heater. <P>SOLUTION: A valve seat case 3 has a first spring 13, a screw stock receiving member 22 having a shaft 14 for constantly pressing a slide guide means by the energizing force of the first spring 13, and a temperature adjustment valve 15 axially displaced with the shaft 14 for adjusting a clearance h of a hot water supply-side passage formed by hot water introduction holes 7, 8 and a clearance c of a water supply-side passage formed by water introduction holes 9, inside thereof, and being linearly guided in a fixed housing 2 along the axial direction, and a second spring 23 mounted between the screw stock receiving member 22 and a plate member 20, and moving the plate member 20 against the energizing force 13 of the first spring at a switching unit side while being contracted by the screw stock receiving member 22 moved to the switching unit side when the clearance c of the water supply-side passage is opened. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a hot and cold water mixing faucet.

  As a faucet having an automatic temperature control function, the present applicant, as shown in FIG. 4 to FIG. 7, has a water / hot water or mixed water discharge / stop function and a flow rate control function at one end of the faucet body 80. A thermo-type hot and cold water mixing faucet S in which a temperature control handle 82 having a function of adjusting the temperature of mixed water is provided at the other end of the faucet body 80 is proposed (Japanese Patent Application No. 2002-328208). (See the description and drawings). A switching unit 83 and a temperature control unit 84 are respectively inserted into the faucet body 80 through the right end opening 80a and the left end opening 80b of the faucet body 80 so as to be coaxial with the axis X of the faucet body 80. Yes. An end portion 85a of the cylindrical thermo main body 85 located on the switching unit side of the temperature control unit 84 is inserted into an end portion 87a of the switching valve case 87 located on the temperature control unit side of the switching unit 84 via the O-ring 86. It is detachably inserted. The thermo body 85 has one hot water introduction hole A and a plurality of water introduction holes B in the body, and has a thermo element 90 inside. The thermo element 90 contains a thermo wax 88, and further has a piston 89 that expands when the thermo wax 88 expands and contracts when the thermo wax 88 contracts. In addition, a thermo valve 91 is built in the thermo body 85. When the thermo-element 90 detects the temperature of the mixed water different from the temperature of the mixed water set in advance by the temperature control handle 82, the thermo-wax 88 expands or contracts and the piston 89 extends. Or, by shrinking, it is displaced together with the thermo element 90 in the axial center X direction of the faucet body 80, and is formed by the gap 200 of the hot water supply side passage formed by the hot water introduction hole A and the water introduction hole B. The gap 201 of the water supply side passage to be adjusted is adjusted. The thermo valve 91 is composed of two members, for example, a cylindrical thermo valve main body 91 and a thermo valve main body 91a which is also a small-diameter cylindrical member 91b. Reference numeral 93 denotes a cylindrical fixed housing provided between the temperature control handle 82 and the thermo main body 85, and is provided in a horizontally placed state coaxially with the faucet main body 80. The fixed housing 93 has guide grooves (not shown) at the upper and lower positions on the inner peripheral surface.

  94 is a slide guide body configured to be linearly moved back and forth along the axis X direction of the faucet body 80 by rotating the temperature control handle 82 around the axis X of the faucet body 80. The setting position of the thermo valve 91 is variably adjusted through the piston 89, and thereby the temperature of the mixed water set by the temperature control handle 82 (40 ° C.) and the hot water supply side passage gap 200 and the water supply side passage. The gap 201 is adjusted. The slide guide body 94 is provided in the fixed housing 93. As shown in FIG. 7, the slide guide body 94 has a recess 95a facing the thermo body side, and is a plate that is linearly guided along the axis X direction of the faucet body 80 by the guide groove. The member 95 and the screw rod 96 mesh with each other and have a groove 97b formed with continuous teeth facing the temperature control handle side, and linearly along the axis X direction of the faucet body 80 by the guide groove. Are provided with a screw rod receiving member 97 guided between the two members 95, 97, and a connecting wire 99 that couples the members 95, 97 through the spring 98. The piston tip 89 a is always in contact with the bottom surface of the recess 95 a of the plate member 95 by the biasing force of the spring 100. Then, the slide guide body 94 moves back and forth linearly along the axis X direction in the fixed housing 93 by the rotational movement of the plug rod 82a of the temperature control handle 82.

  However, since hot water heaters are widely used in each household, and the temperature of the hot water introduced into the hot water introduction hole A can be adjusted by the hot water heater, the above-described automatic temperature control function is not necessary and the hot water introduction until then. When the temperature control handle 82 is set to 40 ° C. when the temperature of the hot water introduced into the hole A is 45 ° C., for example, mixed water of about 39 ° C. is discharged from the water discharge pipe or shower. If the temperature is lower than 45 ° C., the temperature adjustment handle 82 cannot be handled at the 40 ° C. setting position. Further, the thermo element 90 is expensive.

  In addition, with a two-valve hot and cold water mixing faucet, it is difficult to operate the hot water handle and water handle with or without a water heater to discharge mixed water at around 39 ° C. by operating both handles once. Uselessness is bad.

  The present invention has been made in consideration of the above-mentioned matters, and an object thereof is to provide a cost-effective and easy-to-use hot and cold water mixing faucet capable of adjusting the temperature of mixed water by a hot water heater.

  In order to achieve the above object, the hot and cold water mixing faucet of the present invention includes a temperature control unit inserted into the faucet body through the left end opening of the faucet body, and a right end opening of the faucet body. A hot water and water mixing faucet comprising: a switching unit inserted into a faucet body, and configured to connect the temperature control unit to a left end portion of a cylindrical switching valve case of the switching unit. Is a cylindrical fixed housing fixed to the left end opening, and a substantially cylindrical valve seat case provided on the right end side of the fixed housing and having one hot water introduction hole and a plurality of water introduction holes in the body, A temperature control handle provided on the left end side of the fixed housing, and the valve seat case has a right end portion connected to the left end portion of the switching valve case, and the temperature adjustment handle is provided in the fixed housing. Around the axis of the faucet body A slide guide means configured to be linearly moved back and forth along the axial direction of the faucet body by rotating is accommodated, and the valve seat case includes a first spring and a first spring. A shaft that always presses the slide guide means by the urging force of one spring, and the shaft is displaced together with the shaft in the axial direction, thereby forming a gap in the hot water supply side passage formed by the hot water introduction hole and the water introduction hole. And a temperature control valve that can adjust the clearance of the water supply side passage formed by the inner side of the fixed housing, and the slide guide means is disposed in the fixed housing along the axial direction while being pressed by a shaft tip. A plate member guided linearly, a screw rod connected to the stopper rod of the temperature control handle, and a groove in which the screw rod engages with the temperature control handle A screw rod receiving member that is linearly guided in the fixed housing along the axial direction, and is interposed between the screw rod receiving member and the plate member, and a water supply side passage A second spring capable of moving the plate member toward the switching unit against the biasing force of the first spring while being contracted by the screw rod receiving member that is moved toward the switching unit when the gap is opened It is comprised by these.

In the present invention, the temperature control unit inserted into the faucet body through the left end opening of the faucet body is provided on the fixed housing in which the slide guide means is accommodated and on the right end side of the fixed housing. It consists of a valve seat case having two hot water introduction holes and a plurality of water introduction holes in the body, and a temperature control handle provided on the left end side of the fixed housing, and the temperature control handle is rotated around the axis of the faucet body. By moving the slide guide means, the slide guide means can be linearly moved back and forth along the axial direction of the faucet body. In addition, a first spring and the first spring are disposed inside the valve seat case. A shaft that constantly presses the slide guide means by an urging force and a temperature control valve are provided, and the temperature control valve is displaced together with the shaft in the axial direction and is formed by the hot water introduction hole. Since the gap of the hot water supply side passage and the gap of the water supply side passage formed by the water introduction hole can be adjusted, the optimum discharge temperature of the mixed water is adjusted in advance according to the hot water temperature set by the hot water heater. If the rotational operation position of the handle is determined, mixed water having a desired temperature can be obtained by a single rotational operation of the temperature control handle.
That is, in the present invention, instead of an expensive thermo element that displaces together with the thermo valve provided in the thermo-type hot / cold water faucet having an automatic temperature control function, a temperature control valve having only a function corresponding to the thermo valve is provided. It is inexpensive because it is used, and the temperature control valve can be operated only by manual operation of the temperature control handle to adjust the gap of the hot water supply side passage and the gap of the water supply side passage. It is easier to use than adjusting the temperature with a mixing faucet.

  Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited thereby.

1 to 3 show an embodiment of the present invention. Further, since the only difference from the conventional example is the temperature control unit, description will be made with reference to FIG.
1 to 3 and 4, the hot and cold water mixing faucet includes a temperature control unit 1 and a switching unit 83 (see FIG. 4), and the temperature control unit 1 is a cylindrical switching valve case 87 of the switching unit 83. Are connected to the left end portion 87a. The temperature control unit 1 is inserted into the faucet body 80 through the left end opening 80 b of the faucet body 80 so as to be coaxial with the axis X of the faucet body 80. The switching unit 83 is inserted into the faucet body 80 through the right end opening 80a of the faucet body 80 so as to be coaxial with the axis X.

  The characteristic configuration of the present invention will be described below.

The temperature control unit 1 includes a cylindrical fixed housing 2 fixed to the left end opening 80b, a substantially cylindrical valve seat case 3 provided on the right end side of the fixed housing 2, and a left end side of the fixed housing 2. And a temperature control handle 82 (see FIG. 4) provided in the main body. The valve seat case 3 includes an outer case portion 3a and an inner case portion 3b fitted into the outer case portion 3a via O-rings 4, 5, and 6. 7 is one hot water introduction hole portion formed in the body of the outer case portion 3a, 8 is one hot water introduction hole portion formed in the body of the inner case portion 3b so as to communicate with the hot water introduction hole portion 7, These hot water introduction hole portions 7 and 8 form one hot water introduction hole. The hot water introduction hole communicates with the most upstream water heater (not shown) through an upstream hot water pipe (not shown). A plurality of water introduction holes 9 are formed in the body of the outer case portion 3a. Reference numeral 10 denotes a water introduction hole portion formed in the body of the inner case portion 3b so as to communicate with each water introduction hole portion 9, and the water introduction hole is formed by the water introduction hole portion 9 and the water introduction hole portion 10. .
The valve seat case 3 has a right end connected to the left end 87 a of the switching valve case 87, and a left end of the valve seat case 3 connected to the left end of the faucet body 80. That is, the valve seat case 3 is fitted over the left end portion of the faucet body 80 and the left end portion 87 a of the switching valve case 87. The outer case portion 3a has an O-ring 11 in the outer peripheral groove, and the inner case portion 3b has an O-ring 12 in an outer peripheral groove provided at the right end portion. The O-ring 12 has a function of sealing between the outer peripheral surface of the left end portion 87a of the switching valve case 87 and the outer peripheral surface of the right end portion of the inner case portion 3b. .

  Further, the fixed housing 2 is configured such that the temperature adjustment handle 82 can be linearly moved back and forth along the axial direction of the faucet body 80 by rotating the temperature control handle 82 around the axis X of the faucet body 80. Slide guide means is accommodated, and the valve seat case 3 includes a first spring 13, a shaft 14 that constantly presses the slide guide means by the urging force of the first spring 13, and the shaft 14 And a gap h in the hot water supply side passage H formed by the hot water introduction holes 7 and 8 and a gap in the water supply side passage C formed by the water introduction holes 9 and 10. It has one temperature control valve 15 that can adjust c.

  The slide guide means is connected to a plate member 20 that is linearly guided in the fixed housing 2 along the axial direction while being pressed by the tip 14 a of the shaft 14, and a plug rod 82 a of the temperature control handle 82. The screw rod 21 and a groove (not shown) in which the screw rod 21 meshes are directed toward the temperature control handle, and are guided linearly in the fixed housing 2 along the axial direction. Screw rod receiving member 22 and the screw rod receiving member interposed between the screw rod receiving member 22 and the plate member 20 and moved to the switching unit side when the gap c of the water supply side passage C is opened. A second spring 23 that can move the plate member 20 toward the switching unit against the urging force of the first spring 13 while being contracted by 22. It is.

  Thus, the rotational operation position of the temperature control handle 82 is determined in advance so that the mixed water having the optimum discharge temperature is discharged from the water discharge pipe or shower according to the hot water temperature set by the hot water supply device. By operating the temperature control handle 82 at the rotational operation position, the mixed water having the optimum discharge temperature is not readjusted with the hot water handle and the water handle as in the case of the two-valve hot water / water mixing faucet. Also, it can be discharged from the water discharge pipe or shower with a single temperature control handle operation.

1 is a configuration explanatory view showing an embodiment of the present invention. It is a top view which shows the temperature control unit used in the said embodiment. It is a perspective view which shows the temperature control unit used in the said embodiment. It is whole structure explanatory drawing which shows prior invention. It is a figure which shows the automatic temperature control operation | movement in the said prior application invention. It is a disassembled perspective view which shows the principal part in the said prior application invention. It is structure explanatory drawing which shows the temperature control unit used by the said prior application invention.

Explanation of symbols

1 Temperature Control Unit 2 Fixed Housing 3 Valve Seat Case 13 First Spring
14 Shaft 20 Plate member 21 Screw rod 22 Screw rod receiving member 23 Second spring 82 Temperature control handle h Clearance in hot water supply side passage c Clearance in water supply side passage

Claims (1)

  A temperature control unit inserted into the faucet body through the left end opening of the faucet body, and a switching unit inserted into the faucet body through the right end opening of the faucet body, In a hot and cold water mixing faucet configured to connect a temperature control unit to the left end of the cylindrical switching valve case of the switching unit, the temperature control unit includes a cylindrical fixed housing fixed to the left end opening, A substantially cylindrical valve seat case provided on the right end side of the fixed housing and having one hot water introduction hole and a plurality of water introduction holes in the body; and a temperature control handle provided on the left end side of the fixed housing; The valve seat case has a right end connected to the left end of the switching valve case, and the fixed housing has a faucet body by rotating a temperature control handle around the axis of the faucet body. Straight along the axial direction Slide guide means configured to be able to move forward and backward is housed, and the valve seat case includes a first spring and a shaft that constantly presses the slide guide means by the urging force of the first spring. And a temperature capable of adjusting a gap between the hot water supply side passage formed by the hot water introduction hole and a gap between the water supply side passage formed by the water introduction hole. The slide guide means includes a plate member that is linearly guided in the fixed housing along the axial direction while being pressed by a shaft tip, and a plug for a temperature control handle. A screw bar connected to the bar and a groove in which the screw bar meshes with the screw facing the temperature control handle side, and the fixing along the axial direction. A screw rod receiving member that is guided linearly in the winging, and the screw that is interposed between the screw rod receiving member and the plate member and is moved to the switching unit side when the gap in the water supply side passage is opened. A hot and cold water mixing faucet comprising: a second spring capable of moving the plate member toward the switching unit against the biasing force of the first spring while being contracted by a rod receiving member.

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