JPH1098U - Water purifier - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention regulates the circumferential component of the water flowing in the water purification cartridge 2 from one end to the other end in the flowing water direction.
An object is to provide a water purifier that can utilize the water purification material 24 uniformly. [Structure] A water passage route C is formed between a raw water supply unit 5 and a drainage unit 16, and the raw water flowing from the raw water supply unit 5 into the water passage route C is purified and then sent to the drain unit 16. A water purifier is provided on the inner wall of the water purification cartridge 2 forming a part of the water passage route C and storing the water purification material 24, from one end of the water purification cartridge 2 in the water passage direction to the other end. Was.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention is a water purifier for purifying raw water, and has a characteristic water passage.

[0002]

[Prior art]

 Generally, in a water purifier that purifies raw water, a water purifier having a rib formed in a circumferential direction (a direction orthogonal to a flowing water direction) on an inner wall of a water purification cartridge that forms a part of a water passage of the water purifier is known. Have been. (June 56-24489)

[0003]

[Problems to be solved by the invention]

 However, in the above-mentioned water purifier, although the short-circuit phenomenon of water can be prevented, water flows in one direction from one end to the other end of the water purification cartridge because water has a component flowing in the circumferential direction in the water purification cartridge. May flow intensively at one location, in which case uniform purification cannot be performed and purification efficiency is reduced.

[0004]

[Means for Solving the Problems]

 According to the present invention, a water passage route C is formed between the raw water supply unit 5 and the drainage unit 16, and the raw water flowing from the raw water supply unit 5 into the water passage route C is purified and then discharged. A water purifier for supplying water to the section 16, which is a part of the water passage route C and has an inner wall of the water purification cartridge 2 that accommodates the water purification material 24. By providing the ribs 58 for water, the circumferential component of the water flowing in the water purification cartridge 2 can be regulated from one end to the other end in the flowing water direction, and the purification efficiency is increased by utilizing the water purification material 24 uniformly. be able to. Further, since the running water guide rib 58 is provided from one end to the other end in the running water direction, the strength of the water purification cartridge 2 in the longitudinal direction can be increased, and the external force when the water purifier falls and the water purification material 24 when clogging occurs. Deformation and breakage due to a rise in water pressure can be prevented as much as possible.

[0005]

【Example】

 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. This water purifier includes a main body 1 and two cylindrical water purification cartridges 2 and 3. On the upper surface of the main body 1 is provided a fitting portion 5 serving as a raw water supply portion which is detachably attached to a water tap 4, and a drainage body 6 is provided on a lower surface thereof. A switching lever 7 for mode switching is rotatably mounted on the 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. The main body 1 is assembled by connecting the split half cases 1a and 1b by connecting rings 54 and 55. 8 is a tap for water supply.

FIG. 2 is a cross-sectional view of the water purification cartridge. In the drawing, 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 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 section 10 is provided inside the main body section 1. The cock portion 10 is configured to house a cock body 12 that is rotated by operating the lever 7 to switch the flow path, inside a cock tube 11. Numerals 13 and 14 denote water passages formed in the cock body 12 and water passages. In FIG. 2, the water passage 13 communicates with a water passage pipe 17 (see FIG. 2). 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 is attached to the drainage section 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 ′ is provided on the upper surface for rotatably engaging with a central hole edge of the drain member 6. . Reference numeral 42 denotes a resilient coil spring stretched between the drainage body 6 and the drainage portion 16. On the lower surface of the drainage body 6, a number of small holes 6a for discharging water like a shower are formed. Reference numeral 43 denotes an engaging nail portion. Reference numeral 44 denotes a filter laid on the drainage unit 16, and 45 denotes an O-ring mounted inside the drainage body 6.

Reference numeral 46 denotes a valve body, and a projection 47 is provided on the upper surface thereof, and a rib 48 is provided on a 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 placed 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. 3, the valve body 46 is grounded to the drainage part 16, so that the drainage part 16 is opened and the water flowing to the drainage body 6 is drained straight. When the lever 19 is horizontally rotated in the direction of the 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. Then, the valve body 46 rises, the drainage part 16 is closed, and the water flowing into the drainage body 6 is drained in a shower form from the small hole 6a. That is, the lever 19 is a switching means for switching between shower-like drainage and normal drainage.

In FIG. 4 and FIG. 5, a tube 21 is built in the center of one cartridge 2 in the longitudinal direction. Activated carbon 24 as a water purification material is stored in the space around the tube 21. Reference numeral 58 denotes a running water guiding rib protruding from one end of the inner wall of the cartridge 2 in the water flow direction to the other end. The rib 58 regulates the circumferential flow component of the raw water flowing inside the cartridge 2 so as to uniformly activate the activated carbon. 24 can be utilized. Further, the water purification effect of the activated carbon 24 can be improved by reducing the bias of the activated carbon 24 and the dance caused by the water flow. 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. The water purification effect of the activated carbon 24 can be further improved.

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, a second valve piece 27, a coil spring 28 that resiliently springs the first valve piece 26, and a water temperature interposed between the two valve pieces 26 and 27. The second coil spring 29 is made of, for example, a shape memory alloy that expands and deforms, and a third coil spring 30 that resiliently projects the second valve piece 27. On the side of the valve piece 26, an opening portion 31 is formed as a bypass portion that leads to a second drain portion 32 (see FIG. 5) provided independently near the drain portion 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 flows to the cartridge 2 through the water pipe 17 and the second valve piece 27 in the open state of the valve mechanism 25. As will be described later, when hot water flows, the second valve piece 27 of the valve mechanism 25 is opened by the extension and deformation of the coil spring 29 made of a shape memory alloy, and the hot water is supplied to 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, a hollow fiber membrane filter 33 is housed in the other cylindrical cartridge 3, and a water passage 38 is provided along the inner wall surface. The two cartridges 2 and 3 are connected via a communication path 36. The cartridge 3 is in communication with the cock 10 via a communication pipe 37.

In FIG. 4, 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. The dimensions and shape of the one mounting part 34 and the mounted part 56 are different from those of the other mounting part 35 and the mounted part 57. In this way, by changing these shapes and dimensions and using the identification means, it is possible to prevent the cartridges 2 and 3 from being erroneously mounted on the opposite mounting portions 56 and 57.

In FIG. 4, reference numerals 54 and 55 denote coupling rings which are fitted from the outside of the half cases 1a and 1b so that the half case 1a and the half case 1b of the main body 1 are not separated. Have been.

The cartridges 2 and 3 are provided with coupling rings 54 and 55, and the rings 54 and 55 are arranged in different colors. As a result, the function of the water purification material in the cartridge can be visually distinguished, and erroneous mounting can be prevented by providing display means of the same color as the rings 54 and 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 in pink on the main body to be mounted. Similarly, the ring 54 of the cartridge 2 containing activated carbon is green, and the characters "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.

As shown in FIG. 4, the two cartridges 2 and 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 entire shape can be compactly formed, and the center of gravity of the whole becomes good when the fitting portion 5 is attached to the faucet 4. . Both cartridges 2 and 3 may store the same water purification material. However, if different types of water purification materials having different water purification capacities such as activated carbon and hollow fiber membrane filters are stored as in this embodiment, the water purification is further improved. The effect can be improved.

This water purifier can be switched to four modes of raw water, raw water shower, purified water, and backwashing by operating the switching lever 7, and each mode will be described next.

FIG. 7 shows the raw water mode. The lever 7 is horizontal, and the cock body 12 presses against the right surface of the cock tube 11. In this state, the water outlet 14 of the cock body 12 passes directly to the drain 16, and the raw water sent from the faucet 4 is drained straight from the drain 16 as shown by the arrow A.

FIG. 8 shows a raw water shower mode. The lever 7 is located on the upper left side, and the water inlet 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. When the faucet 4 side is closed by the cock body 12, the water shutoff mode is set.

Next, the water purification mode will be described with reference to FIGS. 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). After passing through the activated carbon 24 at the passing point c), the tube enters the pipe 21 (passing point d in FIG. 4). As described above, 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 from the pipe 21 to the right through the communication path 36 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 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 passes through the cartridges 2 and 3, the communication passage 36, the communication pipe 37, and the like, as indicated by arrows, and drains water from the lower part of the main body 1. Although the raw water is discharged from the body 6, the raw water flowing from the faucet 4 naturally flows down from the high position to the low position toward the drainage body 6, so that the raw water may be blocked inside the water purifier. 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, an arrow D indicates a water passage route, and A to E indicate passing points. In this case, the cock unit 10 is in the same state as the raw water mode shown in FIG. 7, but the lever 19 is operated to raise the valve body 46 and close the drainage unit 16. In this state, the raw water flowing into the water inlet 14 passes through the communication pipe 37 (passing point a), flows into the water flowing part 38 of the cartridge 3 in FIG. From the side, it enters the inside of the hollow fiber membrane filter 33 (passing point b), flows from the mounting part 35 to the left through the communication path 36, and flows into the tube 21 of the other cartridge 2 (passing point c). . In other words, in the backwashing, the raw water flows in the opposite direction to the case of the above-mentioned purified water, and removes impurities adhering to the hollow fiber membrane filter 33.

In this case, the impurities adhering to the hollow fiber membrane filter 33 are previously recovered in the cartridge 2 containing activated carbon, and are backflowed by back washing. The impurities pass through the activated carbon and pass through the activated carbon. Instead, large impurities adhering to the activated carbon are washed away without clogging.

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 is drained like a shower from the small hole 6a (passing point e in FIG. 7). In this way, if impurities are removed from the hollow fiber membrane filter 33 by occasional backwashing, the water purification ability of the hollow fiber membrane filter 33 can be restored and the life thereof can be extended.

As described above, if the drainage section 16 from which purified water is drained and the drainage section from which backwashed sewage is drained, for example, the shower holes 6a are provided independently of each other, the drainage sections 16 and 6a are provided. Due to the difference in the drainage form, it is possible to prevent the user from accidentally drinking the backwashed sewage as purified water. When the hand is released from the lever 19, the drainage unit 16 is rotated by the spring force of the coil spring 42, and automatically returns to the normal mode from the backwashing state.

As described above, the backwashing operation lever 9 is provided separately from the mode switching lever 7, and the backwashing state is automatically released by releasing the hand. In addition, it is possible to more reliably prevent the user from drinking the backwash wastewater by mistake. Furthermore, since the purified water is drained straight from the drainage section 16, the backwashed sewage is drained in the form of a shower from the small holes 6a, so the drainage modes of the purified water and the backwashed sewage are different. The user can distinguish between clean water and backwashed sewage.

Further, the two cartridges 2 and 3 are provided in parallel, and the mounting portions 34 and 35 as the water inlet / outlet portions are connected by a communication passage 36, and the raw water flows in the forward and reverse directions through the communication passage 36. Thereby, the entire structure can be made compact.

By the way, since the activated carbon 24 and the hollow fiber membrane filter 33 are stained and the water purification ability is reduced, the cartridges 2 and 3 need to 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. 4, when hot water flows into the valve mechanism 25, 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 the hot water is supplied to the cartridge 2 side. Do not flow to 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 flows through the activated carbon 24 and the antibacterial material is not eluted.

When switching from hot water to cold water, the coil spring 29 returns to its original shape and returns to a 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 at a low temperature, the spring force of one spring member 28 is made larger than the spring force of the other spring member 29 to reduce the spring force. In addition, when the temperature is high, the spring force of the spring member 29 is made larger than the spring force of the spring member 28 to open the bypass side, so that the water passage can be switched quickly and sensitively in response to a change in water temperature. There is.

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 opening 31 and the drainage part are formed. There is an advantage that water can be drained from 32.

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 main body. Even if it is placed directly below the sewage, the sewage is not poured into the cup, and it is possible to prevent the use of sewage by mistake.

[0039]

[Effect of the invention]

 As described above, in the present invention, the water passage route C is formed between the raw water supply unit 5 and the drainage unit 16 and the raw water flowing from the raw water supply unit 5 into the water passage route C is purified. And a water purifier for supplying water to the drainage section 16. The water purifier forms a part of the water passage route C, and is provided on the inner wall of the water purification cartridge 2 containing the water purification material 24 from one end in the flowing direction of the water purification cartridge 2. By providing the running water guide ribs 58 at the ends, the circumferential component of the water flowing in the water purification cartridge 2 can be regulated from one end in the running water direction to the other end, and the water purification material 24 can be utilized evenly. Purification efficiency can be increased. Further, since the running water guide rib 58 is provided from one end to the other end in the running water direction, the strength of the water purification cartridge 2 in the longitudinal direction can be increased, and the external force when the water purifier falls and the water pressure when the water purification material 24 is clogged. As a result, deformation and breakage caused by the above can be prevented as much as possible.

[0040]

[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.

[0041]

[Explanation of symbols]

 2 Water purification cartridge 5 Raw water supply unit 16 Drainage unit 24 Water purification material 58 Flowing water guide rib

Claims (1)

[Utility model registration claims] 1. A water passage route C is formed between a raw water supply unit 5 and a drainage unit 16. The raw water flowing from the raw water supply unit 5 into the water passage route C is purified, and then the drainage unit 16 is cleaned. A water-guiding rib 58 extending from one end of the water-purifying cartridge 2 in the flowing direction to the other end of the water-purifying cartridge 2 forming a part of the water-passing route C and storing the water-purifying material 24. A water purifier characterized by having a.