KR20030094144A - water main direct connection in water clean machine - Google Patents

Abstract

PURPOSE: A water supply directly connecting type water purifier is provided to perform complex function by integrating precipitation filter and activated carbon filter into one carbon block filter, effectively filter suspended solids by preventing channeling phenomena and prevent damage of membrane by cutting off inflow of activated carbon into hollow fiber membrane filter. CONSTITUTION: In a water supply directly connecting type water purifier for purifying the raw water by sequentially passing raw water supplied to water supply pipe(1) through a plurality of filter, the water supply directly connecting type water purifier comprises a carbon block filter(100) in which the precipitated water is flown so that the water flown in passes through a lower central part of carbon block(130) after the precipitation is performed as water supplied to the water supply pipe(1) is passing through PE block (precipitation block) on the outskirts of the carbon block filter(100); a cartridge filter(200) in which the water sequentially passes through granular activated carbon(260) and ceramic(240) and flows to the outskirts of a lower part of the cartridge filter(200) after the water filtered through the carbon block filter(100) and discharged to the lower central part of the carbon block(130) flows in an upper central part from a lower central part of the cartridge filter(200); and a hollow fiber membrane filter(300) in which the water discharged to the outskirts of the lower part of the cartridge filter(200) passes through silver activated carbon(360) upwardly through the outskirts of a lower part of the hollow fiber membrane filter(300), the water passing through the silver activated carbon(360) is again filtered on the outskirts of an upper part of the hollow fiber membrane filter(300) and flows downward to pass through membrane(340), and the water passing through the membrane(340) is remained in antibacterial chamber(300) and then passes through a lower central part of the hollow fiber membrane filter(300) before being discharged into discharge pipe(410).

Description

Water main direct connection in water clean machine}

The present invention relates to a water direct type water purifier that is used by directly connecting to a power outlet installed in a sink, or installed and used under a sink.

As is well known, the water direct connection water purifier can be easily connected to the raw water line in the sink connected to the faucet or faucet so that the purified water can be easily ingested and consumed at home, and household appliances such as refrigerators and hot and cold water heaters To use it.

The water direct connection water purifier is generally configured such that water supplied from a raw water line is purified while sequentially passing through a plurality of filters arranged in series by water pressure, and constitutes a conventional water direct connection water purifier to which such a multi-stage filter is applied. This is as follows.

As shown in FIG. 1, a sedimentation filter 11 made of a nonwoven fabric or the like is provided to primaryly filter the raw water introduced from the raw water line, and the granular activated carbon filter is configured to secondaryly filter the water passing through the precipitation filter 11. 12) is provided with a carbon block filter (10); A cartridge filter (20) in which granular activated carbon (21) and ceramics (22) are separated and filled to filter the water passing through the carbon block filter (10); Hollow fiber membrane 31 is provided with a hollow fiber membrane membrane 31 to filter bacteria and fine impurities and water to pass through the cartridge peter 20, and a silver activated carbon 32 is filled therein to suppress bacterial growth. It is composed of a desert filter (30).

In addition, the raw water line and the water supply pipe 1 is connected to the lower center of the precipitation filter 11, the upper center of the precipitation filter 11, the lower center of the granular activated carbon filter 12, and the upper portion of the granular activated carbon filter 12 The center and the lower center of the cartridge filter 20, the upper center of the cartridge filter 20 and the lower center of the hollow fiber membrane filter 30 are sequentially connected by connecting tubes 2, 2 ', 2 ", respectively. do.

However, the conventional water direct type water purifier configured as described above is composed of a precipitation filter 11 and a granular activated carbon filter 12 each of which the carbon block filter 10 is made of a nonwoven fabric or the like. There is a problem of this deterioration.

In addition, the water supplied to the carbon block filter 10 and the cartridge filter 20 is passed in one direction from the bottom to the top, there is a problem that the contact time with the filling is shortened so that the water purification effect is lowered, the raw water by the water pressure When the water passes upward, the channeling phenomenon occurs in one side of the water path, causing the suspended solids and impurities contained in the raw water to pass through without being filtered, thereby reducing the water purification effect.

In addition, when activated carbon is introduced into the hollow fiber membrane filter 30 together with the water passing through the cartridge filter 20, the granules may be damaged by the direct contact of the activated carbon having a sharp granularity. There is an uneconomical problem that a separate sterilization device such as a photocatalyst, a UV-lamp, etc. is required in order to prevent the bacteria introduced from the outside into the water remaining in the flow path.

In addition, after filling the contents into the chamber 40 of each filter, the upper cap 41 is covered, and the edges of the connecting parts are heated by ultrasonic bonding or bonded by friction, and in the case of such ultrasonic bonding, activated carbon dust, etc. Deviation occurs in the joint surface by the influence of, and in the case of friction bonding by rotation, as shown in Figure 2, the edge of the upper cap 41 protrudes outward (burr) occurs, to remove it Since the post-treatment process is required for the separate process, there is a problem that the work efficiency is lowered and the productivity is lowered.

The present invention is to solve the conventional problems as described above, the object of the sedimentation filter and the activated carbon filter to a single carbon block filter to perform a complex function, and passed through each filter By increasing the contact time between the water and the fillers to prevent channeling phenomenon, it is possible to effectively filter the suspended solids and to prevent the activated carbon from entering the hollow fiber membrane filter to prevent damaging the membrane by the sharp granular activated carbon. In addition, it is possible to prevent bacteria from propagating in the remaining water after passing through the membrane, and to provide a water-directed water purifier capable of firmly and beautifully coupling the chamber and the upper cap of each filter.

The water direct connection water purifier of the present invention for achieving this purpose, the carbon block filter so that the water supplied to the water supply pipe is precipitated while passing through the outer PE block (sedimentation block) is introduced into the inner side to pass through the lower center of the carbon block. The cartridge filter is configured so that the water filtered through the carbon block filter and discharged to the lower center flows from the lower center to the upper center, and then passes through the granular activated carbon and ceramics sequentially and passes through the lower outer area. The water discharged to the lower outer portion of the passes through the lower activated carbon through the silver activated carbon upwards, the water passing through the silver activated carbon is filtered again in the upper outer portion and passes downward through the membrane, and the water passing through the membrane passes through the antimicrobial chamber. It is characterized in that the hollow fiber membrane filter is configured to pass through to the lower center after the remaining It is.

In addition, the water direct connection water purifier of the present invention is characterized in that the chamber and the upper cap of each filter are molded in a rotary fusion method.

1 is a schematic cross-sectional view showing a configuration of a filter for filtering raw water in the related art.

2 is a cross-sectional view of a filter case fused by a conventional ultrasonic method

3 is a perspective view of a water direct type water purifier to which the present invention is applied.

4 is a cross-sectional view of the water direct type water purifier to which the present invention is applied.

5 is a cross-sectional view showing a carbon block filter to which the present invention is applied.

Figure 6 is a cross-sectional view showing a cartridge filter to which the present invention is applied

Figure 7 is a perspective view showing a support member of the cartridge filter to which the present invention is applied

Figure 8 is a perspective view showing a filter plate of the cartridge filter to which the present invention is applied

9 is a cross-sectional view showing a hollow fiber membrane filter to which the present invention is applied

10 is a perspective view showing a supporting member of the hollow fiber membrane filter to which the present invention is applied

11 is an operating state of the water direct type water purifier to which the present invention is applied.

<Explanation of symbols for the main parts of the drawings>

100: carbon block filter 130: carbon block

140: PE block (precipitation block) 200: cartridge filter

240: ceramic 260: granular activated carbon

300: hollow fiber membrane filter 340: antibacterial chamber

350: membrane 360: silver activated carbon

Hereinafter, the configuration of an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 3 is a perspective view of a water direct type water purifier to which the present invention is applied, and FIG. 4 is a cross-sectional view of a water direct type water purifier to which the present invention is applied.

The water purifier of the present invention, the water supplied to the water supply pipe (1) is precipitated while passing through the PE block (sedimentation block) 140 of the outside and then introduced into the carbon block filter so as to pass through the lower center of the carbon block 130 ( 100), and the water filtered through the carbon block filter 100 and discharged to the lower center flows from the lower center to the upper center, and then passes through the granular activated carbon 260 and the ceramic 240 in sequence to the lower outer portion. The cartridge filter 200 is configured to pass through the water, and the water discharged to the lower outer portion of the cartridge filter 200 passes upward through the lower activated carbon to the silver activated carbon 360 and passes through the silver activated carbon 360. After the filter is filtered again at the upper outer side, the membrane 340 passes downward, and the water passing through the membrane 340 remains in the antimicrobial chamber 330 and passes through the lower center to be discharged into the discharge tube 410. Configure the desert filter 300 .

And each of these filters 100, 200, 300 are sequentially arranged in an upright state, the outer portion is configured to wrap in a case 400 on the enclosure that is opened and closed, so that the direction can be switched to one side of the upper The flexible discharge pipe 410 is provided to be connected to the outlet of the hollow fiber membrane filter 300, the front center of the case 400 is equipped with an indicator 420 for displaying the replacement time of each filter, more Specifically, it is as follows.

As shown in FIG. 5, the carbon block filter 100 has a thread formed on an inner circumferential surface thereof so as to communicate with an interior of an open cylindrical container, and a support piece 111 protruding upward is passed through the lower portion thereof. The guide hole 112 penetrates a predetermined angle around the support piece 111, and a chamber 110 having a coupling groove 113 having a predetermined depth is formed on an upper surface of the cylindrical container, and the support piece 111 is provided. The fastening piece 121 through which the inside penetrates to the thread of the screw), and the boss 122 protrudes upward to form a passage in the center of the fastening piece 121, and the guide rib 123 is formed on the outer circumferential surface thereof. The lower fixing member 120 is formed in close contact with the lower inner circumferential surface of the chamber 110 to form an inflow path 124 through which raw water can move.

In addition, the upper surface of the boss 121 is provided with a carbon block 130 is formed by pressing the granular activated carbon to form a passage 131 in the center, the outer peripheral surface of the carbon block (such as non-woven fabric) of the polyethylene ( 130 is seated on the PE block (precipitating block) 140 formed by wrapping the surface with a predetermined thickness, and is mounted on the upper surface of the carbon block 130 and PE block (precipitating block) 140 of the chamber 110 The upper fixing member 150 is provided with a boss 151 which seals the upper inner circumferential surface and forms a passage in the center, and protrudes downward, and the coupling protrusion 161 to correspond to the coupling groove 113 of the chamber 110. ) Is joined in a rotary fusion method forcibly press-fitting while rotating the fixing cap 160 protruding downward.

As shown in FIG. 6, the cartridge filter 200 has a support piece 211 protruding upward so as to communicate with an inside of an open cylindrical container. The guide hole 212 penetrates at a predetermined angle to the chamber, and the locking jaws 213 and 213 'are formed on the upper and lower inner circumferential surfaces of the cylindrical container, and a chamber in which the coupling groove 214 of a predetermined depth is formed on the upper surface. 210 is provided, the upper and lower filter plate 220 which is seated on the upper and lower locking jaw (213, 213 ') of the chamber 210 to filter the foreign matter and the filling of water passing through the carbon block filter 100. 220 'is provided.

In addition, a boss 231 is formed between the upper and lower filter plates 220 and 220 ′ so that one end thereof is coupled to the support piece 211 of the chamber 210. A support member 230 having a radially formed wing 232 for guiding the ceramic 240 to be evenly filled on the outer circumferential surface of the lower end of 231 is provided as shown in FIG. 7, and the lower filtration plate 220 ′. On top of the ceramic 240 is evenly filled in the interior of the chamber 210 by the wing 232 of the support member 230.

In addition, the upper surface of the ceramic 240 is provided with an isolation member 250 for passing only the water without passing the particles of the granular activated carbon 260 below, between the isolation member 250 and the upper filter plate 220 The granular activated carbon 260 is filled and joined in a rotary fusion method forcibly indenting while rotating the fixing cap 270 protruding downward from the coupling protrusion 271 to correspond to the coupling groove 214 of the chamber 210. Let's do it.

As illustrated in FIG. 8, the upper and lower filtration plates 220 and 220 ′ include a fine metal mesh 223 between upper and lower bodies 221 and 222 having ribs formed by penetrating an installation hole in a center thereof. Secure by insert injection.

The wing 232 of the support member 230, the guide piece 222a for guiding the ceramic 240 is formed on the upper and lower sides, the ceramic 240 is to be moved between the guide piece 222a. The moving space 222b is formed to be stacked so that it can be stacked.

As shown in FIG. 9, the hollow fiber membrane filter 300 has a support piece 311 protruding upwardly so as to communicate with an inside of a cylindrical container having an upper portion penetrated through the lower portion of the hollow fiber membrane filter 300. The guide hole 312 penetrates at a predetermined angle around the chamber, and upper and lower locking jaws 313 and 313 'are formed on the inner and outer circumferential surfaces of the cylindrical container, and a chamber in which a coupling groove 314 of a predetermined depth is formed on the upper surface. It is provided with a 310, the upper and lower locking projections (313, 313 ') of the chamber 310, the lower and upper filter plate 320 for filtering foreign matter and the filling of water passing through the cartridge filter 200. 320 'is provided.

In addition, a boss 331 is formed in the upper portion of the lower filter plate 320 'and penetrated therein so as to be coupled to the support piece 311 of the chamber 310. 332 is formed, and the support member 330 is radially provided with a wing 333 so that the silver activated carbon 360 below is evenly filled on the outer circumferential surface of the boss 331, as shown in FIG. 10.

In addition, an antimicrobial chamber 340 containing an antimicrobial agent 341 is provided in the receiving space 332 of the support member 330, and the membrane 350 is disposed in the receiving space 332 which is an upper portion of the antimicrobial chamber 340. The built-in membrane housing 351 is seated, and the chamber 310 is rotated while the wing 333 of the support member 330 rotates the activated carbon 360 between the lower and upper filter plates 320 and 320 '. Filling the inside evenly, the coupling protrusion 371 protrudes downward to correspond to the coupling groove 314 of the chamber 310, while rotating the fixing cap 370 is equipped with an air vent 372 therein It is joined by the rotation welding method which is forced indentation.

Meanwhile, the carbon block filter 100, the cartridge filter 200, and the hollow fiber membrane filter 300 configured as described above are connected to each of the connection pipes 2, and the water supply pipe 1 is connected to the carbon block filter 100. The hollow fiber membrane filter 300 is connected to the discharge pipe 410 and positioned inside the case 400, and then measures an amount of purified water discharged by being filtered on one side of the hollow fiber membrane filter 300. 420 is mounted.

Referring to the operation of the present invention configured as described above are as follows.

First, as shown in FIG. 11, the raw water flowing through the water supply pipe 1 passes through the guide hole 112 of the chamber 110 by hydraulic pressure, thereby opening the inflow path 124 of the lower fixing member 120. While passing through the inner circumferential surface of the chamber 110 through the upper part, the foreign particles having large particles contained in the raw water are filtered while precipitated in the PE block (sedimentation block) 140, and the filtered water is PE block (sedimentation block) ( 140).

In addition, the water passing through the PE block (precipitation block) 140, while passing through the carbon block 130 again to remove organic contaminants and heavy metals.

At this time, since the raw water flowing into the carbon block filter 100 flows upward along the inner circumferential surface of the chamber 110 and evenly flows through the outer circumferential surface of the PE block (sedimentation block) 140, the channeling phenomenon is not shown. To prevent it.

On the other hand, the water passing through the carbon block 130 is moved downward along the passage 131 of the carbon block 130 is discharged into the fastening piece 121 of the lower fixing member 120.

Then, the water filtered and discharged to the carbon block filter 100 through the above process is introduced into the cartridge filter 200 through the connection pipe (2).

In this case, the water introduced into the cartridge filter 200 flows from the lower center to the upper center via the boss 231 of the support member 230, and the water introduced into the upper center is the boss 231. It is distributed to the outside about the end of the).

When water is dispersed in this way, the foreign matter contained in the water flowing through the carbon block filter 100 in the metal mesh 223 of the upper filter plate 220 is filtered and discharged to the lower portion.

In addition, the water discharged to the lower portion of the upper filtration plate 220 passes through the granular activated carbon 260 to remove organic contaminants again and at the same time separates the granular activated carbon 260 and the water from the sequestering member 250 to obtain granular activated carbon ( 260 does not pass, but only filtered water.

Meanwhile, the water passing through the isolation member 250 adsorbs heavy metals, supplies minerals such as calcium and iron ions, and moves to the lower portion of the chamber 210 via the ceramic 240 which emits far infrared rays. By separating the powder or powder and water of the ceramic 240 from the metal mesh 223 of the lower filtration plate 220 'and passing only the water supplied with the mineral and the iron ions, it passes through the guide hole 212 of the chamber 210. It is discharged to the outside of the cartridge filter 200.

At this time, the water that passes through the carbon block filter 100 into the support member 230 and is dispersed outward from the end of the support member 230 and moved to the bottom is filled in the cartridge filter 200. Increasing the contact time with the will increase the efficiency of the purified water.

In addition, the water filtered and discharged from the cartridge filter 200 is introduced into the hollow fiber membrane filter 300 through the connection pipe (2).

At this time, the water introduced into the hollow fiber membrane filter 200 is introduced into the guide hole 312 of the chamber 310 and the water filtered by the cartridge filter 200 in the metal mesh of the lower filter plate 320 again. When the filter is introduced upwards, it removes residual chlorine or organic matter from the silver activated carbon 360, exerts antibacterial function, and can solve the odor.

The water passing through the silver activated carbon 360 separates the silver activated carbon 360 and the water of the sharp particles from the upper filter plate 320 'and passes only the filtered water, and the water passed through the upper filter plate 320'. The hollow fiber membrane of 0.1 μm or less passes through the membrane 340 through which bacteria and fine impurities are filtered, and minerals that are beneficial to the body pass downward to remain in the antibacterial chamber 330, and remain in the antibacterial chamber 330. Water can be used hygienically while inhibiting the growth of microorganisms by the antimicrobial agent 331, and prevents the formation of scale, water passing through the antimicrobial chamber 330 passes through the boss 331 of the support member 330 It is discharged to the outside of the hollow fiber membrane filter (300).

The water purified through the above process is discharged through the discharge pipe 410, and stored in a container such as a cup for drinking, and the indicator of the use of the purified water to measure the replacement of the filter on the indicator 420 And replace the filter with the displayed content.

As described above, the present invention, the precipitation filter and the activated carbon filter can be combined into a single carbon block filter to perform a complex function, and the channeling (channeling) by increasing the contact time of the water and the fillers passed through each filter By preventing phenomena, it is possible to effectively filter suspended solids, prevent activated carbon from entering the hollow fiber membrane filter, and prevent the membrane from being damaged by sharp granular activated carbon.The water remaining after passing through the membrane The bacteria can be prevented from propagating and have the advantage of firmly and beautifully bonding the chamber and the upper cap of each filter.

Claims (6)

In a water direct type water purifier in which raw water supplied to the water supply pipe 1 is passed through a plurality of filters in order to purify the water, The water supplied to the water supply pipe 1 is precipitated while passing through the PE block (sedimentation block) 140 of the outside and then introduced into the carbon block filter 100 configured to pass through the lower center of the carbon block 130 and ; The cartridge filter filtered through the carbon block filter 100 and discharged to the lower center from the lower center flows into the upper center and then passes through the granular activated carbon 260 and the ceramic 240 in order to pass through the lower outer portion. 200; The water discharged to the lower outer portion of the cartridge filter 200 passes through the lower activated carbon through the silver activated carbon 360 upwards, and the water passing through the silver activated carbon 360 is filtered again from the upper outer membrane 340. Passing through the membrane, the water passing through the membrane 340 is left in the antimicrobial chamber 330 and passed through the lower center is characterized in that the hollow fiber membrane filter 300 is configured to discharge to the discharge pipe 410 Water direct connection water purifier. The method of claim 1, wherein the carbon block filter 100, A thread is formed on the inner circumferential surface so that the upper part communicates with the inside of the open cylindrical container, and the support piece 111 protruding upward is penetrated through the lower part, and the guide hole 112 is spaced at a predetermined angle around the support piece 111. Is penetrated, the chamber 110 is provided with a coupling groove 113 of a predetermined depth on the upper surface of the cylindrical container, the fastening piece 121 is penetrated through the screw thread of the support piece 111 is fastened, The boss 122 protrudes upward to form a passage in the center of the fastening piece 121, and the guide rib 123 is in close contact with the lower inner circumferential surface of the chamber 110 so that the raw water can move. A lower fixing member 120 having an inflow path 124 is provided, and a carbon block 130 press-molded granular activated carbon such that a passage 131 is formed at the center of the upper surface of the boss 121. The outer peripheral surface of the carbon block 130 is made of a porous polyethylene (nonwoven fabric, etc.) The PE block (sedimentation block) 140 formed by wrapping the surface with a predetermined thickness is seated on the upper surface of the carbon block 130 and the PE block (sedimentation block) 140, and the upper portion of the chamber 110. The upper fixing member 150 protruding downwards is provided with a boss 151 which seals the inner circumferential surface and forms a passage in the center thereof, and the coupling protrusion 161 to correspond to the coupling groove 113 of the chamber 110. Is directly connected to the water purifier, characterized in that for bonding in a rotary fusion method forcibly pressed while rotating the fixed cap 160 protruding downward. The method of claim 1, wherein the cartridge filter 200, The support piece 211 protruded upward so as to communicate with the inside of the open cylindrical container is passed through the lower portion, the guide hole 212 is penetrated through the support piece 211 to be spaced at a predetermined angle, the cylindrical The upper and lower locking jaws 213 and 213 'are formed on the inner circumferential surface of the container, and a chamber 210 having a coupling groove 214 having a predetermined depth is provided on the upper surface, and upper and lower locking portions of the chamber 210 are provided. Upper and lower filter plates 220 and 220 ′ which are seated on the jaws 213 and 213 ′ and which filter foreign matters and fillings of the water that have passed through the carbon block filter 100 are provided. The upper and lower filter plates 220 are provided. And a boss 231 formed therebetween so that one end thereof is coupled to the support piece 211 of the chamber 210, and is mounted on the outer circumferential surface of the lower end of the boss 231. The support member 230 is radially formed with a blade 232 for guiding the ceramic 240 to be evenly filled, and the lower filter plate 220 'is provided. The top of the ceramic 240 is evenly filled in the interior of the chamber 210 by the wing 232 of the support member 230, the particles of granular activated carbon 260 to the upper surface of the ceramic 240 Is provided with an isolation member 250 for passing only water without passing through, and the granular activated carbon 260 is filled between the isolation member 250 and the upper filtration plate 220, and the coupling groove 214 of the chamber 210 is provided. Coupling projection 271 is directly connected to the water purifier, characterized in that for bonding in a rotary fusion method forcibly pressurized while rotating the fixed cap 270 protruding downward. The method of claim 3, wherein the upper and lower filter plates 220, 220 ', Water supply direct connection water purifier, characterized in that the fine metal mesh 223 is fixed by insert injection between the upper and lower body 221, 222 ribs formed through the installation hole in the center. According to claim 3, The wing 232 of the support member 230, Guide pieces 222a for guiding the ceramic 240 are formed at upper and lower portions, and the moving spaces 222b are formed to be stacked so that the ceramic 240 can be moved between the guide pieces 222a. Water direct connection water purifier characterized by the above-mentioned. The method of claim 1, wherein the hollow fiber membrane filter 300, A support piece 311 protruding upwardly communicates with the lower part so that the upper part communicates with the inside of the open cylindrical container, and the guide hole 312 penetrates at a predetermined angle around the support piece 311. The upper and lower locking jaws 313 and 313 ′ are formed on the inner circumferential surface of the container, and a chamber 310 having a coupling groove 314 having a predetermined depth is provided on the upper surface, and upper and lower locking portions of the chamber 310 are provided. Lower and upper filter plates 320 and 320 'are disposed on the jaws 313 and 313' to filter the foreign substances and the fillers of the water that have passed through the cartridge filter 200, and the lower filter plate 320 'is provided. A boss 331 is formed in the upper portion of the boss 331 through which the inside is penetrated to be coupled to the support piece 311 of the chamber 310, and an accommodation space 332 is formed on the boss 331. On the outer circumferential surface of the 331 is provided with a support member 330, the blade 333 is formed radially so that the silver activated carbon 360 is evenly filled, An antimicrobial chamber 340 containing an antimicrobial agent 341 is provided in the receiving space 332 of the support member 330, and the membrane 350 is embedded in the receiving space 332 that is the upper portion of the antimicrobial chamber 340. The membrane housing 351 is seated, and the silver activated carbon 360 is rotated between the lower and upper filter plates 320 and 320 'while rotating the blade 333 of the support member 330 into the chamber 310. Filling evenly, the coupling protrusion 371 protrudes downward to correspond to the coupling groove 314 of the chamber 310, forcibly press-fitting while rotating the fixed cap 370 is equipped with an air vent 372 therein Water direct type water purifier, characterized in that the bonding by the rotation fusion method.