JP2570902Y2 - Water tap with water purifier - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water tap attached to a home sink or the like, and more particularly to a water tap having a water purification function.

[0002]

2. Description of the Related Art In order to remove impurities such as lime, odor, red rust, mold, germs and harmful substances which are dissolved or mixed in tap water, for example, a water purifier is conventionally used in a water tap of a sink used for drinking. Was sometimes attached.

In a conventional water purifier, as shown in FIG. 11, a filter material such as activated carbon, a hollow fiber membrane filter, or a calcium ceramic is accommodated in a plastic cylindrical water purifier body a. Is placed on the sink b, and the switching valve d is screwed to the water discharge pipe f of the water tap c,
The distal end of a hose e drawn from the water purifier main body a is connected to a branch port provided in the switching valve d, and by operating a lever g of the switching valve d, hot water discharged to the water discharge pipe f is supplied to the hose e. , Is filtered through the water purifier main body a,
The filtered water is discharged by a water discharge pipe h provided in the water purifier. When the lever g is switched, the hot water of the water discharge pipe f does not pass through the water purifier main body a and is directly discharged from the lower surface of the switching valve d. It is also possible to make water spout more.

In the conventional water purifier shown in FIG. 12, the water purifier main body a is directly fixed to the water discharge pipe f of the water tap c. In this case also, the lever g is operated to switch the water purifier. Is available.

[0005]

However, the water purifier shown in FIG. 11 has the following problems. (A) The hose e and the water purifier main body a occupy a narrow space in the sink, which hinders kitchen work, makes cleaning difficult, and tends to be unsanitary. (B) The hose e prevents the water discharge pipe f from swinging freely. (C) A soft hose must be used to facilitate the swinging of the water discharge pipe f. However, heat resistance and pressure resistance are lost, and high-temperature hot water is passed through.
Alternatively, there is a possibility that the filter medium is broken when the water pressure rises due to clogging of the filter medium or the like. The water purifier shown in FIG. 12 has the following problem. (D) The distance between the sink of the sink and the discharge port is reduced, so that a large container cannot enter. (E) Since the water purifier body a is heavy, it is difficult to swing the water discharge pipe f, and the inside of the sink is narrowed in terms of space. (F) At the connecting portion of the water discharge pipe f on the secondary side of the water faucet c, since the seal portion is not originally made to have pressure resistance, if the filter medium is clogged, the water pressure in the water discharge pipe f rises and water leakage occurs. May cause.

Further, the above two conventional water purifiers have the following common problem. (G) If the filter medium is clogged or the water outlet of the water purifier is closed for some other reason, the water supply pressure will be entirely inside the water purifier body a, and the pressure difference from the atmospheric pressure will increase. Since the wall of the vessel main body a is hung, the vessel wall is expanded and deformed or broken. This may be more pronounced when hot water is supplied, so that hot water could not be passed through. (H) In some cases, a safety valve is attached to the water purifier main body a in order to release the pressure in the water purifier main body a. However, this not only complicates the structure, but also leaks water from the safety valve to wet the surroundings, or The hose j for draining the leaked water is shown in FIG.
However, there is a drawback in that the treatment is bad, for example, it must be provided as exemplified in (1). (I) If the water purifier is not used for a while, the remaining water in the water purifier main body rots and becomes unsanitary. In particular, in these cases, since air easily enters the water purifier main body a, it is easy to propagate various bacteria in the water purifier main body a.

[0007]

Water purifier with faucet of the present invention According to an aspect of the present invention to solve the above problems, forming a chamber together with the water supply plug body in the flow path in the faucet body, casing
A water purification cartridge with a filter medium enclosed in the case
So that almost all of it is immersed in the fluid flowing through the chamber
A first feature of the present invention is that the flowing water flowing through the flow path is exchangeably incorporated into the chamber and discharged through the water purification cartridge. Further, in the present invention, in the water tap with the water purifier, a branch flow path is formed in a branch shape in the flow path in which the chamber is formed, and a valve port is formed in each of the branch flow path and the secondary flow path of the water purification cartridge. Further, a further feature is that a valve body for selectively opening each valve port to the discharge-side flow path is incorporated in the hydrant body. Further, in the present invention, the water faucet main body is a hot and cold water mixing faucet, the flow path formed by the chamber is a hot and cold water mixing water flow path, and when the valve port of the secondary flow path of the water purification cartridge is closed. And a communication portion for constantly flowing a small amount of water in the secondary channel of the water purification cartridge to the discharge channel.

[0008]

When the water tap is opened, the flowing water in the flow path enters the water purification cartridge, is filtered and purified by the filter medium, and impurities such as calcium, off-flavor, and red rust are removed and flow out to the discharge side flow path. Here, the water purification cartridge is housed in a chamber formed integrally with the hydrant body, so that even if the water pressure in the chamber rises, the water purification cartridge also has the same pressure. There is no equal. The water purification cartridge is always immersed in the flow path of the water faucet main body, so that water flows even when water is passed through the branch flow path (raw water discharge), so that water around the cartridge does not accumulate. Further, the water is replaced more completely by passing a small amount of water.

[0009]

1 to 8, an embodiment of a water tap with a water purifier according to the present invention will be described. The water tap shown in this embodiment is a so-called single-lever hot and cold water tap. Therefore, on the back of the water tap main body 1, a hot water supply pipe 2 communicating with the hot water supply source and a water supply pipe 3 communicating with the hot water supply source are provided on the flanged threaded cylinders 4,5 and the flanged threaded cylinders 4,5. The unions are engaged by union nuts 6 and 7, respectively. Reference numerals 8 and 9 denote hot water supply channels and water supply channels formed in the water tap main body 1 so as to communicate with the hot water supply pipe 2 and the water supply pipe 3, respectively. Faucet body 1 is a top cylindrical standing portion 10 in the horizontal cylindrical and exhibits its oblong tube-shaped body portion 11 made of bronze, the tubular projection 62 on the lower surface are formed respectively integrally. Then, the mixing valve assembly 1 is provided on the cylindrical upright portion 10.
2 are accommodated. The mixing valve assembly 12 has a structure which has been conventionally used in a single-lever type hot and cold water mixing faucet, and is provided on a bottom plate 14 of a cylindrical case body 13 with a hot water port 15 communicating with the hot water supply passage 8. A fixed valve plate 17 is fixedly provided with a water valve port 16 communicating with the water supply passage 9, and a movable valve plate 18 is disposed on the fixed valve plate 17, and the movable valve plate 18 rotates and slides. It is pressed against the fixed valve plate 17 by the holding body 19 so as to be free. The presser body 1
9 is rotatably accommodated in the case body 13 and is
A connecting rod 23 is pivotally supported by a pin 22 to the connecting rod 23.
An inner end of the connecting rod 23 is loosely fitted into a concave portion 24 formed on the upper surface of the movable valve plate 18, and a lever handle 21 is fixed to an outer protruding end of the connecting rod 23 by a screw 25. Therefore, the movable valve plate 18 moves forward and backward on the fixed valve plate 17 by moving the lever handle 21 up and down, and the movable valve plate 18 rotates on the fixed valve plate 17 by rotating the lever handle 21. Accordingly, the opening amounts of the hot water valve port 15 and the water valve port 16 are adjusted accordingly, so that the amount of hot water discharged from the opening 26 of the case body 13 to the flow path 27 and the mixing ratio thereof can be adjusted. I have.

[0010] Water is a laterally long cylindrical body part 11 of the plug body 1 is yield volumes of water purification cartridge 29 in the channel 27 the chamber 28 is formed in the channel 27 is formed the chamber 28. Purification cartridge 29, as shown in FIG. 8, bottom threaded shaft portion 30 is within the cylindrical <br/> case 32 made of plastic inlet 31 is opened in the bottom toward the peripheral side wall are formed integrally And a filter medium such as activated carbon 33 and hollow fiber membrane 34, or magnesium clinker and calcium ceramics and ultra-micro filter, or ion exchange resin and activated carbon, or calcium sulfite and carbon fiber. The cover 35 is covered with an aqueous lid 35, and a seal O is wound around the outer periphery of the lid 35.
It is a ring.

An annular engaging member 39 is fixed to the one end opening of the horizontally long cylindrical body 11 by a screw 38, and the annular engaging member 39 is axially formed on the inner periphery as shown in FIGS. And a circumferential engagement groove 41 communicating with the inner end of the insertion groove 40 is formed. 42 is the annular engaging member 3
9 is a dome-shaped cap into which the cylindrical portion 43 is inserted. On the outer periphery of the cylindrical portion 43, an engaging claw 44 that can pass through the insertion groove 40 is formed. Then, by rotating the cap 42, the engaging claw 44 is engaged in the engaging groove 41 as shown in FIG. 3, and one end of the elongated tubular body 11 is closed. The screw shaft 30 of the water purification cartridge 29 is screwed into the center of the cylindrical portion 43 in the cap 42 in advance. Reference numeral 45 denotes an O-ring for sealing the cap 42. Reference numeral 46 denotes a plastic display ring which is fitted around the outer periphery of the cap 42 so as to be able to change the winding position. Numerals 1 to 12 (not shown) are written on the surface of the display ring 46. . 47 is the display ring 4
Each time the water purifying cartridge 29 is replaced by rotating the display ring 46 to match the above-mentioned number with the display point 47 at the rivet pin-shaped display point fixed to the outer periphery of the horizontally long cylindrical body 11 near 6 The next required exchange month can be displayed numerically.

A valve port 48 is formed at the other end of the chamber 28 in which the water purification cartridge 29 is accommodated. An O-ring 36 for sealing the water purification cartridge 29 is provided on the inner peripheral surface of the chamber 28 connected to the valve port 48. Be close. The flow path 27 communicates with the inlet 31 of the water purification cartridge 29, and a branch flow path 49 is formed in a branched shape as shown in FIG. Reference numeral 50 denotes a tubular bonnet screwed to the other end of the horizontally long cylindrical body 11 by a screwing portion 61. The bonnet 50 has a valve port 51 formed at an inner end thereof and opposed to the valve port 48. At the same time, a through hole 52 formed in the side wall of the bonnet 50 communicates with the branch channel 49. A spindle 53 is disposed in the bonnet 50 so as to be able to advance and retreat by screwing the screwing portion 54, and an O-ring 55 which is in sliding contact with the inner peripheral surface of the bonnet 50 in a watertight manner is provided at an intermediate portion of the spindle 53. Is provided, and a valve body 56 located between the valve port 48 and the valve port 51 is formed at the inner end. Reference numeral 57 denotes a switching handle fixed to the outwardly projecting end of the spindle 53 by a screw 58. Valve body 56
Is located between the valve port 48 and the valve port 51 where the horizontal cylindrical body 1 is located.
1 and a cylindrical projecting portion 62 connected to the discharge-side flow path 59
Water discharge pipe 60 to the cylindrical projecting portion 62 communicates is supported so as to be rotatable in a horizontal plane.

In the hydrant with a water purifier thus formed,
The hot / cold mixed water (hereinafter referred to as raw water) flowing out of the flow path 27
The water enters the cylindrical case 32 through the inlet 31 and is filtered by the activated carbon 33 and the hollow fiber membrane 34 to reach the outlet 37. Therefore, as shown in FIG. 2, if the switching handle 57 is rotated to separate the valve body 56 provided at the distal end of the spindle 53 from the valve port 48, the clean water reaching the outlet 37 is discharged to the discharge side flow path. The water is discharged to the water discharge pipe 60 through 59. At that time, the back surface of the valve body 56 closes the valve port 51, so that the raw water can be prevented from being discharged. Also, as shown in FIG.
8, when the valve port 48 is closed,
The raw water that has flowed out through the branch flow path 49, the through hole 52, and the valve port 51 flows out to the discharge side flow path 59, and is discharged to the water discharge pipe 60 as raw water.

When replacing the water purifying cartridge 29, the cap 42 is rotated to disengage the engaging claw 44 into the engaging groove 41, and the engaging claw 44 is pulled out through the insertion groove 40, whereby the cap 42 is removed. Release from the engagement groove 41. Thereby, the water purification cartridge 29 screwed and fixed to the cylindrical portion 43 is simultaneously drawn out of the horizontally long cylindrical body portion 11. Here, the screw can be easily replaced by unscrewing the screw shaft portion 30, replacing the screw shaft portion 30 with a new water purification cartridge, and returning the cartridge to its original state.

On the other hand, the water purification cartridge 29 shown in FIG.
Is formed by forming an inlet 31 at the bottom of a cylindrical case 32. In this case, the water purification cartridge 29 is accommodated in the chamber 28 as shown in FIG.
Are separated from the inner end face of the cylindrical portion 43. A water purification cartridge 29 having such a configuration may be used. In the above embodiment, the water purification cartridge 29 is fixed to the cap 42 by forming the screw shaft 30 in the water purification cartridge 29 and screwing the screw shaft 30 to the inner end surface of the cap 42. The fastening means is not limited to screwing as in this embodiment, but may be a means such as press-fitting, or a method of forming an elastic claw piece and restoring it. Although the above embodiment has been described with reference to the hot and cold water mixing faucet, the present invention is not limited to this hot and cold water mixing faucet but may be applied to a single water faucet. In addition to providing a water purification cartridge in the secondary flow path, a water purification cartridge may be provided in the primary flow path.

By providing the water purification cartridge 29 in the chamber 28 formed in the flow path 27 of the water faucet main body 1 as described above, the water purification cartridge is immersed in the flowing water flowing through the flow path 27, so that water stays. The risk of spoilage or propagation of various bacteria is reduced. In addition, even when the valve body 56 closes the valve port 48, pores and the like as shown by a virtual line in FIG. The provision of the communication portion 62 ensures the flow of water in the water purification cartridge 29, which is more effective in preventing the above-mentioned decay.

[0017]

[Effect of the invention] Thus, the water tap with the water purifier of the invention is
Since the water purification cartridge is built into the main body of the water tap, the water purifier itself or the hose does not occupy a large space such as a sink as in the conventional case, so that cleaning can be performed without disturbing kitchen work. It will be easier. In addition, there is no need to worry about the pressure resistance and heat resistance of hoses, water purifier cases, etc., and in the case of a mixed faucet, there is no danger of leakage, damage to the wall, or deformation even if hot water is passed through. For this reason, the water purified through the water purifier as in the prior art can be used more conveniently for drinking without the need for a new kettle to boil. Furthermore, a branch flow path is formed in a branch shape in the flow path in which the chamber is formed, and a water purification cartridge is provided in the chamber, so that flowing water always flows around the water purification cartridge and does not become stagnant water, so it is sanitary. is there. Since the water purification cartridge is housed in the chamber and the inside and outside of the case have the same water pressure, there is an advantage that the case is made of plastic and can be manufactured at low cost without the possibility of destruction even if it has no pressure resistance.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view of an essential part showing one embodiment of the present invention.

FIG. 2 is a partial view showing an operation state of FIG. 1;

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a sectional view taken along line CC of FIG. 1;

FIG. 6 is a sectional view taken along line DD of FIG. 1;

FIG. 7 is a sectional view taken along line EE of FIG. 6;

FIG. 8 is an exploded perspective view of the water purification cartridge.

FIG. 9 is an exploded perspective view showing another embodiment of the water purification cartridge.

FIG. 10 is a horizontal sectional view of the water tap showing an attached state of the water purification cartridge of FIG. 9;

FIG. 11 is a perspective view showing a mounting state of a conventional water purifier.

FIG. 12 is a perspective view showing a conventional water purifier mounted and used.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 faucet main body 12 mixing valve assembly 21 lever handle 27 flow path 28 chamber 29 water purification cartridge 31 inflow port 32 case 36 sealing O-ring 37 outflow port 42 cap 48 valve port 49 branch flow path 51 valve port 56 valve element 57 switching Handle 59 Discharge side flow channel 60 Water discharge pipe

Continuation of front page (56) References JP-A-4-210287 (JP, A) JP-A-62-247814 (JP, A) JP-A-62-204818 (JP, A) JP-A-2-1000069 (JP, A) , U) Fully open 1615-155013 (JP, U) Fully open 1979-11322 (JP, U) Fully open, Showa 60-121568 (JP, U) Fully open, Showa 52-78364 (JP, U)

Claims (4)

(57) [Scope of request for utility model registration] 1. A chamber is formed integrally with a hydrant body in a flow path of the hydrant body, and a filter medium is sealed in a case.
The water purification cartridge and the case
Water supplied with a water purifier, wherein the water flowing through the flow path is discharged after being immersed in the flowing fluid and removably incorporated into the chamber so as to pass through the water purification cartridge. plug. 2. A branch flow path is formed in a flow path in which a chamber is formed, and a valve port is formed in each of the branch flow path and a secondary flow path of the water purification cartridge. 2. The water tap with a water purifier according to claim 1, wherein a valve body selectively opened to the discharge side flow path is incorporated in the water tap body. 3. A water tap with a water purifier according to claim 1, wherein the water tap body is a hot and cold water mixing faucet, and the flow path in which the chamber is formed is a hot and cold water mixing water flow path. 4. A communication section which always allows a small amount of water in the secondary flow path of the water purification cartridge to flow through the discharge flow path when the valve port of the secondary flow path of the water purification cartridge is closed. The water tap with a water purifier according to claim 2 or 3, wherein: