JPH1097U - Water purification cartridge - Google Patents

Abstract

(57) [Summary] [Object] The present invention is directed to a water purification cartridge detachably mounted on a water purifier, and an object thereof is to provide a sanitary water purification cartridge. [Constitution] A water inlet and a water outlet 71 are detachably attached to a water purifier for purifying raw water flowing from a raw water supply unit 5 and sending the purified water to a drainage unit 16. In the water purifying cartridge having a water inlet 70 and a water outlet 71, an annular protective wall 73 such that the water inlet 70 and the water outlet 71 are located on the inner side thereof is formed in the mounting portion 35, and the water inlet 70 and the water outlet 71 are connected to the water inlet 70 and the water outlet 71. The protective wall 73 is disposed on the back side of the end 72.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a water purification cartridge detachably mounted on a water purifier that purifies raw water.

[0002]

[Prior art]

 Conventionally, a water purification cartridge mounted on a water purifier that purifies raw water has a configuration in which a water inlet and a water outlet are formed at a mounting portion with the water purifier so as to be easily mounted on the water purifier. (Literature scandal)

[0003]

[Problems to be solved by the invention]

 When this type of water purification cartridge is installed in the water purifier, it is held by the user's hand, but if the user gets crazy and drops it on the floor carelessly, the water inlet or outlet formed to protrude becomes dirty. It was unsanitary because the components adhered. Also, even if it is not dropped on the floor surface, when the water purifier is attached to the water purifier, the hand holding the water purification cartridge may come into contact with the water inlet or the water outlet, and contaminants may adhere thereto. In particular, the dirt component contains germs.If the germs are attached to the water purifier with the germs attached, the germs proliferate in the water flow route of the water purifier, and the user drinks water containing these germs. Will be.

[0004]

[Means for Solving the Problems]

 The present invention is provided with a water purifier for purifying raw water supplied from the raw water supply unit 5 and then supplying the purified water to the drainage unit 16. The water purifier is detachably mounted on the water purifier. In the water purification cartridge having the outlet 71, an annular protective wall 73 is formed in the mounting portion 35 such that the water inlet 70 and the water outlet 71 are located on the inner side thereof, and the water inlet 70 and the water outlet 71 are formed. By arranging them on the back side of the end portion 72 of the protective wall 73, it is possible to eliminate contact with the outside and to surely prevent attachment of dirt components.

The protective wall 73 has an outer dimension L 1 smaller than the outer dimension L 2 of the cartridge body 3, so that when a user mounts the water purification cartridge on the water purifier, the water inlet and the water inflow port are formed by the steps. The position of the water outlet can be recognized, and the water inlet and the water outlet can be further prevented from touching.

[0006]

【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 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 10 is provided inside the main body 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, which has a projection 47 projecting from its upper surface and a rib 48 projecting from its side surface. 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, a tube 21 is built in the center of one cartridge body 2 in the length direction thereof. Activated carbon 24 as a water purification material is stored in a space around the tube 21. Reference numeral 58 denotes a running water guide rib protruding from the inner surface of the cartridge body 2. The rib 58 regulates the flow direction of raw water flowing inside the cartridge body 2, and reduces the bias of the activated carbon 24 and the dancing caused by the water flow. Activated carbon 24 improves the water purification effect. The means for forming the ribs is optional. For example, as shown in FIG. 11, the ribs 65 may be formed in a helical shape, so that the raw water flowing in the cartridge body 2 is actively disturbed. In addition, 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 body 2. The valve mechanism 25 includes a first valve piece 26, a second valve piece 27, a coil spring 28 for resilient the first valve piece 26, and a water temperature interposed between the valve pieces 26, 27. The second coil spring 29 is made of, for example, a shape memory alloy that expands and deforms, and the third coil spring 30 that springs 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 drainage portion 32 (see FIG. 5) provided independently near the drainage 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 main body 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 expansion and deformation of the coil spring 29 made of a shape memory alloy, and the hot water flows through 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 body 3, and a water passage section 38 is provided along the inner wall surface. Both cartridges 2 and 3 are connected via a communication path 36. The cartridge body 3 communicates with the cock 10 via a communication pipe 37.

In FIG. 4, the mounting portions 34 and 35 of the cartridge main bodies 2 and 3 are detachably mounted on mounting portions 56 and 57 provided at a plurality of locations on the main body 1 side. The dimensions and shape of one of the mounting portions 34 and the mounted portion 56 are different from those of the other mounting portion 35 and the mounted portion 57. In this way, by changing the shape and dimensions of the cartridge main body 2 and 3 as the identification means, it is possible to prevent the cartridge main bodies 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 cartridge bodies 2 and 3 are provided with coupling rings 54 and 55, and the rings 54 and 55 are arranged in different colors. Further, an annular protective wall 73 to be described later is formed integrally with the coupling ring 55 so as to protrude therefrom. 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.

In FIG. 3 and FIG. 4, the cartridge body 2 detachably mounted on the mounting portion 57 of the main body 1 has a water inlet 70 and a water outlet 71 on the mounting portion 35 of the cartridge body 2. They are arranged concentrically. The water inlet 70 and the water outlet 71 are formed so as to be located inside the annular protective wall 73. In addition, the water inlet 70 and the water outlet 71 are disposed at positions D1 and D2 behind the protruding end 72 of the annular protective wall 73, respectively. Thereby, when replacing the water purification cartridge with a new one, the water inlet 70 and the water outlet 71 are protected as much as possible from contact with the outside.

Further, in FIGS. 3 and 4, the annular protective wall 73 has an outer dimension L 1 smaller than the outer dimension L 2 of the cylindrical cartridge main body 3. When the cartridge body 3 is mounted, the position of the water inflow port 70 and the water outflow port 71 can be recognized by the step, so that the water inflow port 70 and the water outflow port 71 can be further prevented from touching.

As shown in FIG. 4, both 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 of the cartridges 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 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 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 have been recovered in advance in the cartridge 2 containing activated carbon and are back-flowed 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 holes 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, shower small holes 6a, are provided independently of each other, the drainage sections 16, 6a can be 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 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. 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 flows into the cartridge 2. 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 portion 32 at a position shifted from the central drain portion 16 at the lower portion 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.

[0042]

[Effect of the invention]

 As described above, the present invention is removably mounted on a water purifier that feeds raw water flowing from the raw water supply unit 5 to the drainage unit 16 after purifying the purified water. In the water purification cartridge having a water inlet 70 and a water outlet 71, an annular protective wall 73 is formed in the mounting portion 35 such that the water inlet 70 and the water outlet 71 are located on the inner side thereof. By arranging the water inlet 70 and the water outlet 71 behind the end 72 of the protective wall 73, it is possible to eliminate contact with the outside and to surely prevent adhesion of dirt components.

The protective wall 73 has an outer dimension L1 smaller than the outer dimension L2 of the cartridge body 3, so that when the user mounts the water purification cartridge on the water purifier, the water inlet and the water flow are formed due to the steps. The position of the outlet can be recognized, and the water inlet and the water outlet can be further prevented from touching.

[0044]

[Brief description of the drawings]

FIG. 1 is a perspective view of a water purifier and a water purification cartridge according to the present invention.

FIG. 2 is a front sectional view of the water purifier and the water purification cartridge according to the present invention.

FIG. 3 is a side sectional view of the water purifier and the water purification cartridge according to the present invention.

FIG. 4 is a plan sectional view of the water purifier and the water purification cartridge according to the present invention.

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 and the water purification cartridge according to the present invention.

FIG. 8 is a side sectional view of the water purifier and the water purification cartridge according to the present invention.

FIG. 9 is a side sectional view of the water purifier and the water purification cartridge according to the present invention.

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

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

[0045]

[Explanation of symbols]

 3 Water Purification Cartridge 5 Raw Water Supply Unit 16 Drainage Unit 33 Water Purification Material 35 Mounting Unit 70 Water Inlet 71 Water Outlet 72 End 73 Protective Wall

Claims (2)

[Utility model registration claims] 1. A water inlet which is detachably attached to a water purifier for purifying raw water flowing from a raw water supply unit 5 and then feeding the purified water to a drainage unit 16, and which is attached to the mounting unit 35 with the water purifier side.
And a water purification cartridge having a water outlet 71,
An annular protective wall 73 is formed in the mounting portion 35 such that the water inlet 70 and the water outlet 71 are located on the inner side thereof. A water purification cartridge, wherein the water purification cartridge is located on the back side of 72. 2. The water purification cartridge according to claim 1, wherein the protection wall 73 has an outer dimension L1 smaller than the outer dimension L2 of the cartridge body 3.