JP2604026Y2 - 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 purifier for purifying raw water.

[0002]

2. Description of the Related Art Conventionally, a water purifier having a main body case divided into two parts is one in which the half cases are fixed with screws in a state where the half cases are assembled, and the other in which the half cases are fitted and fixed. is there.

[0003]

However, with the screw or fitting means alone, the screw or fitting loosens over time due to external force such as a cock switching operation by a user or vibrations caused by water flow, so that it is divided into two. A gap was formed in the main body case and the appearance became unsightly.

[0004]

According to the present invention, there is provided a cock which can be switched between a raw water mode in which supplied raw water is directly discharged as raw water and a water purification mode in which the supplied raw water is passed through a water purification material to be purified and then discharged. The built-in main body is composed of two half cases divided into two, and the separation prevention member is fitted on a part of the outer wall of the main body to reliably prevent a gap from being generated in the main body. Can be.

[0005] Further, since the separation preventing member is formed in a ring shape, the strength of the fitting side is secured, and there is an effect of further preventing the separation of the main body.

Further, a water purification cartridge accommodating the water purification material can be detachably mounted to the main body, and a ring-shaped separation preventing member is provided at an end of the water purification cartridge on the mounting side. It is possible to reliably prevent the occurrence of a gap in the water purifying cartridge, and at the time of mounting the water purifying cartridge, it is possible to regulate and guide the water purifying cartridge by a part of the outer wall surface of the main body and the inner wall of the ring-shaped separation preventing member. This allows a smooth water purification cartridge to be installed. Moreover, the fixation of the water purification cartridge itself to the main body can be stabilized.

[0007] Further, since the part of the outer wall surface of the main body on which the separation preventing member is fitted is formed one step lower than the outer wall surface, the separation preventing member protrudes from the outer wall surface to improve the design. It won't hurt.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a water purifier. The water purifier includes a main body 1 and two cylindrical water purification cartridges 2 and 3.
It is composed of A fitting portion 5 serving as a raw water supply portion detachably attached to a water tap 4 is provided on the upper surface of the main body 1.
Is provided, and a drainage body 6 is provided on the lower surface thereof. A raw water / purified water switching lever 7 for mode switching is rotatably mounted on the right side surface. The two cartridges 2 and 3 are detachably mounted on the back surface of the main body 1 horizontally and parallel to each other. Main unit 1
Connects the half case 1a, 1b split into two
4, 55 and assembled. 8 is a tap for water supply.

FIG. 2 is a sectional view of the water purifier main body 1.
In the figure, reference numeral 9 denotes a fitting ring provided inside the fitting portion 5, which fits into the enlarged lower end portion of the faucet 4. Reference numeral 15 denotes a packing provided below the packing, which is in contact with the lower surface of the faucet 4 to prevent the raw water flowing out of the faucet 4 from leaking to the outside. The fitting portion 5 is ring-shaped and has a screw portion on the inner surface. By turning the fitting portion 5 by hand, the main body 1 is detachably attached to the lower end of the faucet 4.

In FIG. 3, a cock 10 is provided inside the main body 1. The cock portion 10 is configured to house a cock body 12 that rotates by operating the lever 7 to switch a flow path, inside a cock tube 11. Reference numerals 13 and 14 denote water passages and water passages formed by cutting out the cock body 12, and in FIG.
7 (see FIG. 2) are in communication. The drainage body 6 is provided directly below the cock part 10. Reference numeral 16 denotes a tubular drainage portion mounted on the drainage body 6.

FIG. 6 is an exploded view of the drainage means. An operation lever 19 for backwashing is attached to the drainage unit 16 integrally or separately. A guide wall 40 having a tapered upper surface 41 is provided on the inner surface of the drain portion 16, and an engaging member 16 ′ rotatably engaging with the center hole edge of the drain member 6 is provided on the upper surface. . Reference numeral 42 denotes a resilient coil spring stretched between the drainage body 6 and the drainage portion 16.

A large number of small holes 6a are formed in the lower surface of the drainage body 6 for jetting water in a shower shape. 43
Is an engaging nail portion. Reference numeral 44 denotes a filter laid in the drainage unit 16, and reference numeral 45 denotes an O-ring mounted inside the drainage body 6.

Reference numeral 46 denotes a valve body, and a projection 4 is provided on its upper surface.
7, and a rib 48 is provided on the side surface thereof. 49 is an O-ring. Reference numeral 50 denotes a ring-shaped fitting, and a projection 51 with which the projection 47 is engaged is protruded from the inner surface thereof.

In the assembled state, the rib 48 of the valve body 46 is mounted on the upper surface 41 of the guide wall, and the projection 47 engages with the projection 51, so that the valve body 46 is prevented from rotating. Normally, as shown in FIG. 2 and FIG.
6 is opened, and the water flowing to the drain body 6 is drained straight. When the lever 19 is horizontally rotated in the direction of arrow N shown in FIG. 6 against the spring force of the coil spring 42, the drainage portion 16 also rotates integrally, and the rib 48 is guided on the tapered upper surface 41 so as to ride on it. The valve body 46 rises, the drainage section 16 is closed, and the water flowing into the drainage body 6 is drained in a shower form from the small holes 6a.

In FIG. 4, a tube 21 is built in the center of one cartridge 2 in the longitudinal direction thereof.
Activated carbon 24 as a water purification material is stored in a space around the tube 21. Numeral 58 denotes a running water guide rib protruding from the inner surface of the cartridge 2, which regulates the flow direction of the raw water flowing inside the cartridge 2 and reduces the deviation of the activated carbon 24 and the dancing caused by the water flow.
Improves the water purification effect of activated carbon 24. The means for forming the ribs is optional. For example, as shown in FIG. 11, the ribs 65 may be formed in a spiral shape. In this case, the raw water flowing in the cartridge 2 is positively disturbed, and the activated carbon is activated. 24 can further improve the water purification effect.

In FIG. 4, a valve mechanism 25 is provided in a water passage from the water pipe 17 to the cartridge 2. The valve mechanism 25 includes a first valve piece 26 and a second valve piece 26.
, A coil spring 28 that resiliently springs the first valve piece 26, and a second spring made of a shape memory alloy that expands and deforms due to the temperature of water interposed between the two valve pieces 26, 27.
And a third coil spring 30 that resiliently springs the second valve piece 27. Valve piece 26
A hole 31 is formed on the side of the hole 31 as a bypass portion that leads to a second drain 32 (see FIG. 5) provided independently in the vicinity of the drain 16.

As will be described later, the drainage section 32 can be diverted to a drainage section for backwashed sewage. Normally, the low-temperature raw water sent from the faucet 4 passes through the water pipe 17 and the second valve piece 27 side of the valve mechanism 25 in the open state, and passes through the cartridge 2.
Flows to As will be described later, when the hot water flows, the second valve piece 27 of the valve mechanism 25 is opened by the extension deformation of the coil spring 29 made of the shape memory alloy, and the hot water flows into the opening 31. And the water is drained from the drain 32. Reference numeral 39 denotes a drain tube detachably attached to the drain portion 32.

In FIG. 4, the other cylindrical cartridge 3
Contains a hollow fiber membrane filter 33, and is provided with a water passage section 38 along the inner wall surface. The two cartridges 2 and 3 are connected via a communication path 36. The cartridge 3 is connected via a communication pipe 37 to
The cock 10 communicates with the cock.

In FIG. 4, the mounting portions 34 and 35 of the cartridges 2 and 3 are detachably mounted on mounting portions 56 and 57 provided at a plurality of positions on the main body 1 side. One mounting part 3
The dimensions and shape of the mounting part 4 and the mounted part 56 are different from those of the other mounting part 35 and the mounted part 57. By changing these shapes and dimensions as identification means in this way,
The cartridges 2 and 3 are erroneously inserted into the opposite mounting portions 56 and 5
7 can be prevented from being erroneously mounted.

In FIGS. 3 and 4, reference numerals 54 and 55 denote coupling rings as separation preventing members for the half cases 1a and 1b, and the half case 1a and the half case 1b of the main body 1 divided into two parts are not separated. As described above, they are fitted on the outer wall surfaces 70a, 70b of the half cases 1a, 1b. Further, as shown in the figure, the main body 1 has a cock 10 therein.

The cartridges 2 and 3 are provided with coupling rings 54 and 55, and the rings 54 and 55 are arranged in different colors. Thereby, the function of the water purification material in the cartridge can be visually distinguished, and erroneous mounting can be prevented by providing a display means of the same color as the rings 54, 55 on the side to be mounted. In the present embodiment, the ring 55 of the cartridge 3 containing the hollow fiber membrane filter is colored pink, and the letters "hollow fiber membrane" are printed on the body to be mounted in pink. Similarly, the ring 54 of the cartridge 2 containing activated carbon is green, and the letters "activated carbon" are printed in green on the main body to be mounted. The display means may be a simple colored symbol instead of a character. Further, by directly providing the rings 54 and 55 as the separation preventing members on the cartridges 2 and 3 in this manner, it is possible to reliably prevent the occurrence of a gap in the main body, and to prevent the water purification cartridges 2 and 3 from being formed. At the time of mounting, the outer wall surfaces 70a, 70b of the two half cases 1a, 1b and the ring 5 as a separation preventing member
The cartridges 2 and 3 can be regulated and guided by the use of the cartridges 4 and 55, so that the cartridges 2 and 3 can be mounted smoothly. Moreover, the fixing of the cartridges 2 and 3 can be stabilized. Also, the outer wall surfaces 70a, 70b of the two half cases 1a, 1b constituting the main body 1 are formed one step lower than the outer wall surfaces 71a, 71b so far, so that the ring 54 is fitted in the ring 54. , 55 are outer wall surfaces 71
Since it does not protrude with respect to a and 71b, it is not unsightly. That is, the outer wall surfaces 71a and 71b, the rings 54 and 55, and the water purification cartridges 2 and 3 are flush with each other and have a substantially linear and clean design. In this embodiment, the separation preventing members are provided on both of the two water purification cartridges 2 and 3, but the separation preventing member of one of the water purification cartridges can be omitted.

As shown in FIG. 4, both cartridges 2, 3
Are mounted on the main body 1 in parallel with each other. The fitting portion 5 is located on a bisector of the cartridges 2 and 3. By arranging the main body 1 and the cartridges 2 and 3 in this manner, the overall shape can be made compact, and the balance of the center of gravity of the whole becomes good when the fitting portion 5 is attached to the faucet 4. The two cartridges 2 and 3 may store the same water purification material. However, if different types of water purification materials having different water purification abilities such as activated carbon and hollow fiber membrane filters are stored as in the present embodiment, the water purification effect can be further improved. Can be given.

This water purifier has a lever 7 for switching between raw water and purified water.
Can be switched to four modes of raw water, raw water shower, purified water, and backwash. Next, each mode will be described.

FIG. 7 shows the raw water mode. Lever 7
Is horizontal, and the cock body 12 is pressed against the right surface of the cock tube 11. In this state, the water inlet 1 of the cock body 12
4 passes directly to the drainage section 16 and the raw water sent from the faucet 4
As shown by the arrow A, the water is directly drained from the drain portion 16 as it is.

FIG. 8 shows a raw water shower mode.
The lever 7 is located at the upper left, the water passage 14 communicates with the internal space 20 of the drainage body 6, and the raw water spouts out of the small hole 6 a in a shower shape as shown by the arrow B. If the faucet 4 is closed by the cock body 12, the water shutoff mode is set.

Next, referring to FIGS. 2, 4, and 9,
The water purification mode will be described. In the figure, an arrow C indicates a water passage route at the time of water purification, and a to f indicate passage points of the water passage route C.

In FIG. 2, raw water flowing from the faucet 4 passes through the water pipe 17 (passing point a), further passes through the valve mechanism 25 (passing point b), and enters the inside of one cartridge 2 (FIG. 4). Passing point c), after passing through the activated carbon 24, the pipe 2
1 (passing point d in FIG. 4). Thus, when passing through the activated carbon 24, the calcium in the raw water is adsorbed and removed.

Next, in FIG. 4, the raw water flows rightward through the communication passage 36 from the pipe 21 and enters the other cartridge 3 (passing point e). The impurities in the raw water are absorbed and removed by the hollow fiber membrane filter 33. The purified water from which impurities have been removed in this way passes from the water passage 38 through the communication pipe 37 (passing point f), and is drained from the drain 16 as shown by the arrow C in FIG.

FIG. 10 schematically shows the flowing water direction in the water purification mode. As shown in the figure, the raw water flowing into the upper part of the main body 1 from the faucet 4 is, as shown by the arrow,
The water is discharged from the drainage body 6 below the main body 1 through the cartridges 2, 3, the communication path 36, the communication pipe 37, and the like. The raw water flows naturally so that the raw water does not stay inside the water purifier, and the raw water flowing into the main body 1 is purified while flowing smoothly toward the drainage body 6.

Next, the backwash mode will be described with reference to FIG. In the figure, arrow D indicates the water flow route, and
E indicates a passing point. In this case, the cock unit 10 is in the same state as the raw water mode shown in FIG. 7, but operates the backwashing operation lever 19 to raise the valve body 46 and close the drainage unit 16. In this state, the raw water flowing into the water inlet 14 is
In, through the communication pipe 37 (passing point a), it flows into the water passage part 38 of the cartridge 3, and then enters the inside of the hollow fiber membrane filter 33 from the tip side of the hollow fiber membrane filter 33 (passing point b). Then, it flows to the left from the mounting section 35 through the communication path 36 and flows into the tube 21 of the other cartridge 2 (passing point c). That is, in the backwashing, the raw water flows in the opposite direction to the case of the above-mentioned purified water, and the impurities attached to the hollow fiber membrane filter 33 are removed.

In this case, as for the impurities adhering to the hollow fiber membrane filter 33, large impurities have been recovered in advance in the cartridge 2 containing activated carbon, and the impurities flowing backward by backwashing pass through the activated carbon and pass through the activated carbon. On the contrary, large impurities adhering to the activated carbon are washed away without being clogged.

Next, the water that has passed through the activated carbon 24 of the cartridge 2 passes through the valve mechanism 25 (passing point d), and the small holes 6a
Is drained in a shower form (passing point e in FIG. 7). In this way, back washing is performed occasionally, and the hollow fiber membrane filter 33 is removed.
By removing the impurities, the water purification ability of the hollow fiber membrane filter 33 can be restored and the life thereof can be extended.

As described above, the drainage section 16 from which purified water is drained is provided.
If a drainage portion for draining backwash sewage, for example, a shower small hole 6a is provided independently of each other, the drainage portion 1
It is possible to prevent the user from accidentally drinking the backwashed sewage as purified water due to the difference in the drainage form of 6, 6a. When the lever 19 is released, the drainage unit 16 rotates by the spring force of the coil spring 42, and automatically returns to the normal mode from the backwashing state.

Further, the drainage portion 6a of the backwashing wastewater is provided on the lower surface of the main body portion 1 and the backwashing lever 19 for driving the backwashing mechanism is connected to the raw water / purified water switching lever 7 as described above.
By providing the main body 1 separately from the above, it is possible to reliably prevent backwashing sewage erroneous drinking due to erroneous operation of the frequently operated raw water / purified water switching lever 7. In addition, the backwash lever 19
Is provided separately from the raw water / purified water switching lever 7, but is attached to the main body 1 together with the raw water / purified water switching lever 7 to form one unit. Also, the separate backwash lever 19 can always be visually checked, and forgetting to backwash can be prevented as much as possible. The raw water / purified water switching lever 7 and the backwashing lever 19 are stained with water or the like over time. The washing lever 7 and the backwashing lever 19 can be washed at the same time. Further, since the backwashing wastewater discharge section 6a is provided in one of the units, the degree of contamination of the backwashing wastewater flowing down to the vicinity thereof while operating the lever 19 for backwashing can be confirmed, so that it is easy to use.

Further, since the mounting surface of the backwash lever 19 to the main body 1 is different from the mounting surface of the raw water / purified water switching lever 7, even if the two units are close to each other as one unit, Operation errors can be reliably prevented. In the case of the present embodiment, the lever 7 for switching between raw water and purified water is attached to the right side surface, and the lever 19 for backwashing is attached to the lower surface.
Can be attached to the left side and the front side. In addition, since the raw water / purified water switching lever 7 has a large size and the backwashing lever 19 has a smaller size than the raw water / purified water switching lever 7, the user can easily distinguish between them.
Even if the units are close to each other as one unit, operation errors can be reliably prevented. In addition, the raw water
The cleaning water switching lever 7 is linearly moved,
Are formed in a curved shape, and the shapes are different from each other, so that operation errors can be further prevented.

Further, the water purifying material 2 is attached to the main body 1.
Since the water purification cartridges 2 and 3 containing the cartridges 4 and 33 are detachably mounted, the condition of the backwashed sewage or the recovery after the backwash is checked. Remove cartridges 2 and 3,
Exchange can be performed, and usability is improved.

Further, the backwashing lever 19 is configured to be biased by the elastic body 42 for automatically returning from the backwashing state to the normal mode, so that the backwashing state is automatically released. In addition, it is possible to more reliably prevent the user from drinking the backwash wastewater by mistake.

Further, two cartridges 2 and 3 are provided in parallel, and mounting portions 34 and 35, which are the entrances and exits of water, respectively.
Are connected by a communication path 36, and the raw water flows in the forward and reverse directions through the communication path 36, whereby the entire structure can be made compact.

Since the activated carbon 24 and the hollow fiber membrane filter 33 are contaminated with water and the water purification capacity is reduced, the cartridges 2 and 3 must be removed from the main body 1 and replaced as needed. In this case, since the cartridges 2 and 3 are mounted on the main body 1 independently of each other, the cartridge 2 or 3 whose replacement time has come can be individually removed and replaced.

It is also known that the surface of the activated carbon 24 is coated with an antibacterial material such as silver to prevent the propagation of various bacteria. Hot water may be supplied from the faucet 4.
However, when hot water is sent to the cartridge 2, the antibacterial material coated on the activated carbon 24 elutes, and drinking hot water containing the antibacterial material causes a health problem. Therefore, the present device avoids such inconvenience by configuring the valve mechanism 25 in which the coil spring 29 made of a shape memory alloy is interposed.

That is, in FIG.
, The coil spring 29 is heated and extended, the valve piece 26 is pushed up and the valve piece 27 is pushed down, so that hot water does not flow to the cartridge 2 side. Then, the hot water is drained from the drain 32 through the opening 31 which is a bypass (see FIG. 5). Therefore, the hot water does not flow through the activated carbon 24 and the antibacterial material is not eluted.

When the hot water is switched to cold water, the coil spring 29 returns to its original shape and returns to the normal water purification state. In particular, the valve piece 26 that opens and closes the bypass side is sandwiched between two coil spring members 28 and 29, and when the temperature is low, the spring force of one spring member 28 is made larger than the spring force of the other spring member 29 to reduce the bypass side. And at high temperatures, the spring material 29
By opening the bypass side by making the spring force of the spring member 28 larger than the spring force of the spring member 28, there is an advantage that the water passage can be quickly switched with high sensitivity according to a change in the water temperature.

According to this means, when the cartridge 2 is clogged and the internal water pressure on the cartridge side increases, the valve piece 26 is pushed up by the internal pressure, and the valve piece 26 is pushed up from the opening 31 and the drain 32. There is an advantage that water can be drained.

As described above, the sewage during backwashing is drained in a shower form from the small hole 6a. However, the flow path to the small hole 6a is closed, and the valve piece 26 is closed as described above. The backwashed sewage may be drained from the drainage section 32 by being pushed up by the internal pressure.

Also in this case, since the purified water and the sewage are drained from the independent holes, confusion can be prevented. In particular, by disposing the drain 32 at a position shifted from the center drain 16 at the bottom of the main body, the cup can be moved to The sewage is not poured into the cup even if the sewage is placed right below, and the use of sewage by mistake can be prevented naturally.

As described above, the present invention has a built-in cock that can be switched between a raw water mode in which the supplied raw water is directly discharged as raw water and a water purification mode in which the raw water is passed through a water purification material to be purified and then discharged. The main body part is composed of two half cases divided into two, and the separation prevention member is fitted on a part of the outer wall surface of the main body part, so that it is possible to reliably prevent a gap from being generated in the main body part. It does not impair the aesthetics of the water purifier.

Further, since the separation preventing member is formed in a ring shape, the strength of the fitting side is ensured, and there is a further effect of preventing separation of the main body.

Further, the water purifying cartridge for accommodating the water purifying material can be detachably mounted to the main body, and a ring-shaped separation preventing member is provided at an end of the mounting side of the water purifying cartridge. It is possible to reliably prevent the occurrence of a gap in the water purifying cartridge, and at the time of mounting the water purifying cartridge, it is possible to regulate and guide the water purifying cartridge by a part of the outer wall surface of the main body and the inner wall of the ring-shaped separation preventing member. This allows a smooth water purification cartridge to be installed. Moreover, the fixation of the water purification cartridge itself to the main body can be stabilized.

Further, the part of the outer wall surface of the main body on which the anti-separation member is fitted is formed one step lower than the previous outer wall surface, so that the anti-separation member protrudes from the outer wall surface to improve the design. It won't hurt.

[0050]

[Brief description of the drawings]

FIG. 1 is a perspective view of a water purifier.

FIG. 2 is a front sectional view of the water purifier.

FIG. 3 is a side sectional view of the water purifier.

FIG. 4 is a plan sectional view of the water purifier.

FIG. 5 is a partial sectional view of the water purifier.

FIG. 6 is an exploded view of the drainage means.

FIG. 7 is a side sectional view of the water purifier.

FIG. 8 is a side sectional view of the water purifier.

FIG. 9 is a side sectional view of the water purifier.

FIG. 10 is a schematic front view showing a flowing water direction.

FIG. 11 is a sectional view of another embodiment of the cartridge.

[0051]

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body part 1a Half case 1b Half case 2 Water purification cartridge 3 Water purification cartridge 10 Cock part 24 Water purification material 33 Water purification material 54 Separation prevention member 55 Separation prevention member 70a outer wall surface 70b outer wall surface

Claims (3)

(57) [Scope of request for utility model registration] 1. A main body unit having a built-in cock that can be switched between a raw water mode in which supplied raw water is directly discharged as raw water and a water purification mode in which the raw water is passed through a water purification material to be purified and then discharged. It consists of two half cases split,
A water purifier characterized in that a ring-shaped separation preventing member is fitted on a part of the outer wall surface of the main body. 2. A water purifying cartridge accommodating the water purifying material is detachably mountable to the main body, and a ring-shaped separation preventing member is provided at an end of the water purifying cartridge on the mounting side. The water purifier according to claim 1. 3. The device according to claim 1, wherein a part of the outer wall surface of the main body to which the ring-shaped separation preventing member is fitted is formed one step lower than the outer wall surface. The described water purifier.