WO2008072908A1

WO2008072908A1 - Cock

Info

Publication number: WO2008072908A1
Application number: PCT/KR2007/006502
Authority: WO
Inventors: Young Hwan Kim; Kyu Duck Sim
Original assignee: Young Hwan Kim; Kyu Duck Sim
Priority date: 2006-12-14
Filing date: 2007-12-13
Publication date: 2008-06-19

Abstract

A cock is disclosed. The cock is constructed so that a control unit is moved downwards or upwards by the operation of an actuating unit to open or close a water outlet port of the cock, thus preventing the contamination of the water outlet port, by which the cock is reliably used, and external air is fed to purified water discharged through the water outlet port, thus allowing a user to drink functional purified water having an increased amount of dissolved oxygen. Further, the water outlet port and the control unit may be cleaned in a state in which the supply of purified water to a path of a body unit is blocked, thus preventing the waste of purified water, and being convenient to clean, therefore affording easy maintenance.

Description

COCK

[Description of Drawings]

Fig. 1 is a perspective view showing a cock, according to the present invention; Fig. 2 is an exploded perspective view showing the cock, according to the present invention;

Fig. 3 is a sectional view showing the cock, according to the present invention;

Figs . 4 to 7 are views showing the operating state in which purified water is dispensed by pressing a push button of a pressing unit according to the present invention;

Figs. 8 and 9 are views showing the operating state in which purified water is dispensed by pressing a lever of the pressing unit according to the present invention; Fig. 10 is a sectional view showing the state in which external air is introduced into the cock when purified water is dispensed by pressing the pressing unit; and

Fig. 11 is a sectional view showing the state in which the supply of purified water is blocked according to the present invention.

100: body unit 110: housing

120: path 130: water outlet port 140: mounting opening 150: slide opening

160: fastening cap 200: pressing unit

210: push button 220: horizontal shaft

230: spring 240: lever

300: actuating unit 310: movement guide part 320: elastic member 330: holding member

340: waterproof packing 350: movable shaft

400: control unit 410: control member

420: downward movement-preventing piece 430: discharge guide member

440: diffusion preventing member

500: antibacterial unit

510: antibacterial cap 520: antibacterial member

530: antibacterial guide member 600: purified water blocking unit

610: purified water blocking opening

620: purified water blocking part

630: support member

[Technical Field] The present invention relates, in general, to a cock which is mounted to a hot and cold water dispenser, a hot and cold water purifier, or an ionized water generator and, more particularly, to a cock, in which the lower portion of a water outlet port for dispensing purified water is opened or closed, thus preventing the water outlet port from being contaminated, and in which external air is introduced into the cock when hot or cold water is dispensed, thus increasing the amount of dissolved oxygen in the hot or cold water.

[Background Art]

Today, modern people enjoy the benefits of affluent civilization thanks to industrial development. However, the earth' s environment is getting more and more polluted, because of the use of vast amounts of energy resulting from industrialization. In particular, water pollution is the most serious problem. In order to solve this problem, water dispensing apparatuses for dispensing clean water, namely, water purifiers, have spread to and are now used in government offices, workplaces, schools, and homes.

The water purifiers are classified into a hot and cold water purifier, which has a water purification filter therein and is connected directly to a tap, and a hot and cold water dispenser, which uses a water tank having a predetermined volume of purified water stored therein, and supplies the purified water. Since the hot and cold water purifier and the hot and cold water dispenser store hot water at a high temperature and cold water at a low temperature using a heating device and a cooling device, hot or cold water can be selected by a user and is then dispensed. Thus, the hot and cold water purifier and the hot and cold water dispenser can be conveniently used. However, the hot and cold water purifier and the hot and cold water dispenser are problematic in that an accident may occur when a user is careless with hot water at a high temperature.

In order to solve the problem, various prior arts have been proposed in Korean Patent No. 321808, Korean U.M. Registration No. 390713, etc. The prior arts are advantageous in that they solve the conventional problem. However, the prior arts are problematic in that a water outlet port of a cock for dispensing hot water is always open, so that the water outlet port is likely to be contaminated by external air or impurities, and hot water is subsequently dispensed through the contaminated water outlet port, so that it is impossible to drink uncontaminated water.

Further, because the amount of time that hot water dispensed through the water outlet port contacts external air is reduced, the amount of dissolved oxygen in hot water does not increase, so that the hot water is not converted into functional hot water. Furthermore, in order to clean the water outlet port, the hot water stored in a hot-water tank must be dumped. Thus, such a construction wastes hot water and makes it complicated to clean the water outlet port, so that maintenance is difficult.

[Disclosure] [Technical Problem]

Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a cock, in which a control unit moves up and down relative to a water outlet port to close or open the water outlet port, thus preventing contamination of the water outlet port, and in which external air is added to purified water discharged through the water outlet port, thus allowing a user to drink functional purified water having an increased amount of dissolved oxygen, and in which the water outlet port may be cleaned while the supply of purified water is blocked, thus preventing the waste of purified water and being convenient to clean, therefore affording easy maintenance.

In order to accomplish the above object, the present invention provides a cock, including a body unit which is connected to a hot and cold water tank, with a path formed through the body unit and guiding the supply ot puπiieα water, a pressing unit which is pressed to feed purified water from the body unit, an actuating unit which moves the control unit to a lower portion of a water outlet port of the body unit when the pressing unit is pressed, and simultaneously, discharges purified water through the water outlet port, which is opened as the control unit moves, a control unit which guides discharge of purified water to the water outlet port, which is opened when the control unit is moved to the lower portion of the water outlet port by the actuating unit, and introduces external air when the purified water is discharged, thus making the purified water contact the external air, therefore increasing an amount of dissolved oxygen in the purified water, and an antibacterial unit which kills germs in purified water which is fed to the path of the body unit.

[Mode for Invention]

Hereinafter, a cock according to the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 is a perspective view showing a cock, according to the present invention, Fig. 2 is an exploded perspective view showing the cock, according to the present invention, and Fig. 3 is a sectional view showing the cock, according to the present invention.

According to the present invention, the cock includes a body unit 100, a pressing unit 200, an actuating unit 300, a control unit 400, and an antibacterial unit 500. The body unit is connected to a hot and cold water tank, with a path 120 formed through the body unit and guiding the supply of purified water. The pressing unit is pressed to supply purified water from the body unit 100. When the pressing unit 200 is pressed, the actuating unit moves the control 5 unit 400 to the lower portion of a water outlet port 130 of the body unit 100, and simultaneously, discharges purified water through the water outlet port 130, which is opened as the control unit 400 moves. The control unit guides the discharge of purified water to the water outlet port 130,

10 which is opened when the control unit is moved to the lower portion of the water outlet port 130 by the actuating unit 300, and introduces external air into the purified water that is discharged through the water outlet port 130. Hence, the purified water contacts external air, so that the amount

35 of dissolved oxygen in the purified water increases. The antibacterial unit kills germs in purified water fed through the path 120 of the body unit 100. The units will be described below in detail.

The body unit 100 includes a housing 110, which

?0 communicates with the hot and cold water tank. The path 120 is defined in the housing and guides purified water from the hot and cold water tank to the water outlet port 130. The water outlet port 130 is used to discharge purified water, fed through the path 120, outside the housing 110. A mounting

P5 opening 140 is provided above the water outlet port 130. Guide protrusions 141 are provided on the inner circumference of the mounting opening and guide the movement of the actuating unit 300. Shaft seats 142 are provided on the edge of the mounting opening, so that a rotating shaft 241 of the

30 pressing unit 200 is seated in the shaft seats. Further, a slide opening 150 is formed in the sidewall ot the Housing iiu in such a way as to communicate with the mounting opening 140, and guides the movement of the pressing unit 200. A fastening cap 160 is mounted to the upper portion of the housing 110 so as to close the mounting opening 140. A fastening guide piece 170 is provided on the sidewall of the housing 110, and allows the body unit to be fastened to a water purifier using a fastening member.

The pressing unit 200 is provided with a push button 210, a horizontal shaft 220, a spring 230, and a lever 240. The push button is mounted to the slide opening 150 of the body unit 100. The horizontal shaft has on a lower portion thereof an inclined surface 221, which functions to press a movable shaft 350 of the actuating unit 300 when the horizontal shaft moves into the actuating unit 300 when the push button 210 is pressed. A locking protrusion 222 is provided on an end of the inclined surface 221 and engages with a locking step 350' of the movable shaft 350. When the push button 210 is pressed, thus moving the horizontal shaft 220 into the actuating unit 300, the spring is compressed by the horizontal shaft. Meanwhile, when the pressing force is released, the horizontal shaft 220 is restored to its original position by the spring. The rotating shaft 241 of the lever is seated in the shaft seats 142 of the body unit 100, and the lever is used to dispense purified water.

The actuating unit 300 is provided with a movement guide part 310, an elastic member 320, a holding member 330, a waterproof packing 340, and the movable shaft 350. The movement guide part has guide grooves 311, which engage with the guide protrusions 141 of the body unit 100, and has a movement guide space 312 to guide the movement of the horizontal shaft 220 of the pressing unit 200 while the movement guide part moves up and down along the guide protrusions 141. The movement guide part is seated in the mounting opening 140. When the lever 240 of the pressing unit 200 is pressed, the movement guide part 310 moves down along the guide protrusions 141, thus compressing the elastic member. Meanwhile, when pressing force is released from the lever 240, the movement guide part 310 is restored to its original position by the elastic member. The holding member holds the lower end of the elastic member 320 to protect it. The waterproof packing is pressed by the holding member 330 due to the elastic force of the elastic member 320, thus closing the upper portion of the water outlet port 130 of the body unit 100. A shaft hole 341 is formed through the waterproof packing for insertion of the movable shaft 350 into the shaft hole. The movable shaft passes through an upward movement-preventing piece 351, which is in close contact with the lower surface of the shaft hole 341 of the waterproof packing 340, in such a way as to protrude upwards from the shaft hole 341. The movable shaft has on the upper end thereof the locking step 350' , which engages with the locking protrusion 222 of the horizontal shaft 220.

The control unit 400 is provided with a control member 410, a downward movement-preventing piece 420, and a discharge guide member 430. The control member is mounted to the lower portion of the movable shaft 350 of the actuating unit 300, thus opening and closing the lower portion of the water outlet port 130 of the body unit 100. The downward movement- preventing piece is mounted to the movable shaft 350 so as to prevent the movement of the control member 41(J. The discharge guide member is detachably mounted to the lower end of the water outlet port 130 of the body unit 100, and guides purified water, which is discharged through the water outlet port 130, which is opened as the control member 410 moves downwards. Air inlet holes 431 are radially formed through the discharge guide member 430, and allow external air to flow into the cock when the purified water is discharged.

The control unit may further include a diffusion preventing member 440 and a sterilization member 450. The diffusion preventing member is provided between the control member 410 and the discharge guide member 430, and guides the discharge of purified water, in addition to preventing purified water discharged through the water outlet port 130 from diffusing. The sterilization member is seated on a support step 432 of the discharge guide member 430, and functions to sterilize purified water discharged through the diffusion preventing member 440. Preferably, the sterilization member 450 is made of silver. The antibacterial unit 500 is provided with an antibacterial cap 510, an antibacterial member 520, and an antibacterial guide member 530. The antibacterial cap closes one end of the path 120, and a space 511 for accommodating the antibacterial member 520 is defined in the antibacterial cap. Guide projections 512 are radially formed on the outer circumference of the space 511. The antibacterial member is seated in the space 511 of the antibacterial cap 510, and functions to kill germs in purified water. The antibacterial guide member is coupled to the guide projections 512 so as to prevent the removal of the antibacterial member 520, seated in the space 511 in the antibacterial cap 510, and guide the movement of purified water.

Preferably, the antibacterial member 520 is a ceramic filter. The cock may further include a purified water blocking unit 600, which blocks the supply of purified water through the path 120 of the body unit 100, thus allowing the control unit 400 to be easily separated from the movable shaft 350 of the actuating unit 300. The purified water blocking unit 600 is provided with a purified water blocking opening 610, a purified water blocking part 620, and a support member 630. The purified water blocking opening is formed through the housing 110 of the body unit 100 in such a way as to communicate with the path 120 of the body unit 100. The purified water blocking part is inserted into the purified water blocking opening 610, and rotates forwards and backwards, thus opening or closing the path 120. The support member is secured to the purified water blocking opening 610 in such a way that one end of a rotation guide member 622 of the purified water blocking part 620 protrudes out, in addition to preventing the removal of the purified water blocking part 620.

The purified water blocking part 620 is provided with a sealing member 621, which is inserted into the purified water blocking opening 610 of the body unit 100 in such a way as to be in close contact with the inner surface of the path 120, and the rotation guide member 622, which rotates the sealing member 621. The purified water blocking part may further include magnets 623, which are provided in the rotation guide member 622 and function to convert purified water into magnetized hexagonal water.

The operation of the cock according to the present invention, which is constructed as described above, will be described below. First, the body unit 100 is connected to the hot and cold water tank, which stores hot and cold purified water therein. In this state, in order to open the path 120 in the body unit 100, the purified water blocking part 620 of the purified water blocking unit 600 is rotated such that the purified water blocking part 620 is aligned in the same direction as the path 120 of the body unit 100, as shown in Fig. 4. At this time, the sealing member 621, coupled to the rotation guide member 622 of the purified water blocking part 620, opens the path 120 in the body unit 100, and the purified water, stored in the hot and cold water tank, is supplied through the path 120.

In this state, when it is required to dispense purified water, as shown in Fig. 5, the push button 210 of the pressing unit 200 is pressed. The push button 210 is moved into the mounting opening 140 along the slide opening 150, which is formed through the housing 110 of the body unit 100, thus pressing the horizontal shaft 220. While the horizontal shaft 220 is moved into the movement guide space 312 of the movement guide part 310, the horizontal shaft compresses the spring 230. Thereby, the horizontal shaft is placed in a rear portion of the movement guide space 312.

At this time, the inclined surface 221 of the horizontal shaft 220 is positioned directly above the movable shaft 350 of the actuating unit 300. In this state, when the lever 240 of the pressing unit 200 is pressed, as shown in Figs. 6 and 7, the lever 240 rotates counterciocKwise arounα the rotating shaft 241, which is seated in the shaft seats 142 of the mounting opening 140, and presses the upper surface of the movement guide part 310 of the actuating unit 300. Simultaneously, the guide grooves 311 of the movement guide part 310 move along the guide protrusions 141 to the lower end of the mounting opening 140. The horizontal shaft 220, which is placed in the movement guide space 312 of the movement guide part 310, moves downwards, so that the locking protrusion 222 of the horizontal shaft 220 engages with the locking step 350' of the movable shaft 350.

The engagement of the locking protrusion 222 of the horizontal shaft 220 with the locking step 350' of the movable shaft 350 is maintained. Thus, even if the pressing force is released from the button 210 of the pressing part 200, the horizontal shaft is not moved to a front portion in the movement guide space 312 of the movement guide part 310 by the restoring force of the spring 230.

In the state where the locking protrusion 222 of the horizontal shaft 220 engages with the locking step 350' of the movable shaft 350, the lower surface of the movement guide part 310, moving to the lower end of the mounting opening 140, compresses the elastic member 320, and the holding member 330, holding the elastic member 320, presses the waterproof packing 340. Simultaneously, the inclined surface 221 of the horizontal shaft 220, which is placed in the movement guide space 312, presses the upper portion of the movable shaft 350. Thus, the movable shaft 350 moves to the lower portion of the water outlet port 130 by a distance corresponding to the inclination angle of the inclined surface 221. The movable shaft 350 moves downwards the waterproof packing 340 supported by the upward movement-preventing piece 351, and the control member 410 of the control unit 400, coupled to the movable shaft 350, moves downwards along the movable shaft 350, thus opening the water outlet port 130 of the body unit 100.

Further, when the lever 240 of the pressing unit 200 is pressed in order to dispense purified water, stored in the hot and cold water tank, through the path 120, as shown in Figs. 8 and 9, the rotating shaft 241 of the lever 240, which is seated in the shaft seats 142 of the mounting opening 140, rotates counterclockwise. At this time, the lever presses the upper surface of the movement guide part 310 of the actuating unit 300, and simultaneously, the movement guide grooves 311 of the movement guide part 310 move along the movement guide protrusions 141 to the lower end of the mounting opening 140.

When the lower surface of the movement guide part 310, moving to the lower end of the mounting opening 140, compresses the elastic member 320, one end of the horizontal shaft 220, which is positioned in the movement guide space 312 of the movement guide part 310, is in close contact with the lower edge of the slide opening 150 of the body unit 100. Further, the inclined surface 221 of the horizontal shaft 220 approaches or comes into close contact with the upper portion of the movable shaft 350 of the actuating unit 300. In this state, when the push button 210 of the pressing unit 200 is pushed, the push button 210 moves along the slide opening 150 of the body unit 100 into the mounting opening 140, thus pressing the horizontal shaft 220. The horizontal shaft 220 moves to the rear portion in the movement guide space 312 of the movement guide part 310, and simultaneously compresses the spring 230. As the inclined surface 221 of the horizontal shaft 220 presses the upper portion of the movable shaft 350 of the actuating unit 300, the movable shaft 350 moves to the lower portion of the water outlet port 130 by a distance corresponding to the inclination angle of the inclined surface 221. Thereby, the control member 410 of the control unit 400, which is coupled to the movable shaft 350, moves downwards along the movable shaft 350, thus opening the water outlet port 130 of the body unit 100. When the horizontal shaft moves to the rear portion in the movement guide space 312 while the inclined surface 221 of the horizontal shaft 220 presses the locking step 350' of the movable shaft 350, the horizontal shaft is not moved to the front portion in the movement guide space 312 of the movement guide part 310 by the restoring force of the spring 230, even if the pressing force is released from the button 210 of the pressing unit 200, because the engagement of the locking protrusion 222 of the horizontal shaft 220 with the locking step 350' of the movable shaft 350 is maintained. When the water outlet port 130 of the body unit 100 is opened through the above-mentioned process, hot or cold purified water, generated in the hot and cold water tank, flows through the antibacterial unit 500, which closes one end of the path 120 of the body unit 100. Germs in the purified water that flows through the antibacterial guide member 530 of the antibacterial unit 500 are killed by the antibacterial member 520, which is held in the antibacterial cap 510 and comprises a ceramic filter.

Further, while the purified water, in which the germs are killed in the antibacterial unit 500, flows through the path 120, the purified water is converted into magnetized hexagonal water by the magnets 623 which are held in the rotation guide member 622 of the purified water blocking unit 600. "Hexagonal water" means water that is produced when water passes through a strong magnetic field, so that the molecular structure of the water is changed into a hexagonal structure, which is beneficial to cellular tissues of a human body.

The purified water, which is changed into hexagonal water by the magnets 623, flows to the water outlet port 130 of the body unit 100 and the lower portion of the water outlet port 130, and diffuses through the control member 410 supported by the downward movement-preventing piece 420 of the control unit 400. The diffusion preventing member 440 prevents the diffusion of the purified water at the lower portion of the water outlet port 130, and guides the purified water fed through the water outlet port 130.

The purified water, fed to the diffusion preventing member 440, flows through purified water discharge holes 441 which are radially formed through the outer circumference of the diffusion preventing member 440, thus preventing the purified water from diffusing. The purified water, which has passed through the purified water discharge holes 441, flows through the sterilization member 450, which is made of silver, so as to be sterilized. The sterilized water is discharged to the lower portion of the discharge guide member 430. Consequently, the sterilized and purified water is dispensed.

At this time, as shown in Fig. 10, according to the discharge speed of the purified water which is discharged to the lower portion of the discharge guide member 430, air present outside of the discharge guide member 430 flows into the air inlet holes 431, and is simultaneously mixed with purified water that passes through the purified water discharge holes 441 in the diffusion preventing member 440. Thus, the amount of dissolved oxygen in the purified water can be increased.

Further, when the supply of purified water is completed, and the pressing force is consequently released from the push button 210 and the lever 240 of the pressing unit 200, the pressing unit 200 is restored to its original state by the restoring force of the spring 230 of the pressing unit 200 and the elastic member 320 of the actuating unit 300. Simultaneously, as the actuating unit 300 is restored to its original state, the control unit 400 closes the water outlet port 130, and remains in a waiting mode for dispensing purified water.

Meanwhile, after the cock for dispensing purified water has been used for a predetermined period in the above- mentioned process, the control unit 400 must be cleaned. To achieve this, as shown in Fig. 11, the purified water blocking unit 600 must block the supply of purified water through the path 120 of the body unit 100. The rotation guide member 622 of the purified water blocking part 620 is rotated in the purified water blocking opening 610, which communicates with the path 120 of the body unit 100, in such a way as to be perpendicular to the path 120 of the body unit 100. At this time, the sealing member 621 coupled to the purified water blocking part 620 closes the inner circumference of the path 120, and blocks the supply of purified water. After the supply of purified water is blocked in this way, the push button 210 and the lever 240 of the pressing unit 200 are pressed, so that purified water is discharged through the water outlet port 130. In this state, the discharge guide member 430 and the diffusion preventing member 440 of the control unit 400 are separated from the body unit. Thereafter, the downward movement-preventing piece 420 and the control member 410 of the control unit 400 are separated from the movable shaft 350 of the actuating unit 300. In this state, a user can clean the water outlet port 130 of the body unit 100 and the control unit 400. If necessary, the discharge guide member 430 of the control unit 400 can be replaced with a new one.

Further, after the control unit 400 has been cleaned, the assembly of the control unit 400 is performed in an order opposite that in which the control unit is disassembled. Next, the rotation guide member 622 of the purified water blocking part 620 is rotated in such a way as to be in the same line as the path 120 of the body unit 100. At this time, the purified water blocking part 620 is aligned with the path 120 in the same line, so that the sealing member 621 of the purified water blocking part 620 opens the path 120, as shown in Fig. 4, thus guiding the movement of purified water. In this way, the cock remains in a waiting mode for dispensing purified water. Herein, hot or cold water supplied from the hot and cold water tank is limited to purified water. However, the present invention may be used as a cock for dispensing cold water or a cock for dispensing hot water. It is apparent that the cock of this invention may be applied to a hot and cold water dispenser, a hot and cold water purifier, or an ionized water generator.

[industrial Applicability]

As described above, the present invention provides a cock, in which a control unit is moved downwards or upwards by the operation of an actuating unit to open or close a water outlet port of the cock, thus preventing the contamination of the water outlet port, therefore being stably used, and in which external air is fed to purified water discharged through the water outlet port, thus allowing a user to drink functional purified water having an increased amount of dissolved oxygen. Further, the present invention provides a cock, in which a water outlet port and a control unit may be cleaned, because the supply of purified water to a path of a body unit is blocked, thus preventing the waste of purified water, and being convenient to clean, therefore affording easy maintenance.

Claims

[CLAIMS] [Claim l]

A cock, comprising: a body unit connected to a hot and cold water tank, with a path formed through the body unit and guiding the supply of purified water; a pressing unit pressed to feed purified water from the body unit; an actuating unit moving the control unit to a lower portion of a water outlet port of the body unit when the pressing unit is pressed, and simultaneously, discharging purified water through the water outlet port, which is opened as the control unit moves; a control unit for guiding discharge of purified water to the water outlet port, which is opened when the control unit is moved to the lower portion of the water outlet port by the actuating unit, and introducing external air when the purified water is discharged, thus making the purified water contact the external air, therefore increasing an amount of dissolved oxygen in the purified water; and an antibacterial unit for killing germs in purified water which is fed to the path of the body unit.

[Claim 2]

The cock according to claim 1, wherein the body unit comprises: a housing communicating with the hot and cold water tank, with the path defined in the housing and guiding purified water from the hot and cold water tank to the water outlet port; the water outlet port, used to discharge puntied water, fed through the path, to an outside of the housing; a mounting opening provided above the water outlet port, with a guide protrusion provided on an inner circumference of the mounting opening and guiding movement of the actuating unit, and a shaft seat provided on an edge of the mounting opening so that a rotating shaft of the pressing unit is seated in the shaft seat; a slide opening formed in a sidewall of the housing in such a way as to communicate with the mounting opening, and guiding movement of the pressing unit; a fastening cap mounted to an upper portion of the housing so as to close the mounting opening; and a fastening guide piece provided on a sidewall of the housing, and allowing the body unit to be fastened to a water purifier using a fastening member.

[Claim 3]

The cock according to claim 1, wherein the pressing unit comprises: a push button mounted to the slide opening of the body unit; a horizontal shaft having on a lower portion thereof an inclined surface, which functions to press a movable shaft of the actuating unit when the horizontal shaft is moved into the actuating unit in response to pressing of the push button, with a locking protrusion being provided on an end of the inclined surface and being engaged with a locking step of the movable shaft; a spring compressed by the horizontal shaft, which moves into the actuating unit when the push button is pressed, and restoring the horizontal shaft to an original position thereof when pressing force is released; and a lever for dispensing purified water, a rotating shaft of the lever being seated in the shaft seat of the body unit .

[Claim 4]

The cock according to claim 1, wherein the actuating unit comprises: a movement guide part having a guide groove which engages with the guide protrusion of the body unit, and having a movement guide space to guide movement of the horizontal shaft of the pressing unit while the movement guide part moves up and down along the guide protrusion, the movement guide part being seated in the mounting opening; an elastic member moved downwards along the guide protrusion and compressed when the lever of the pressing unit is pressed, and restoring the movement guide part to an original position thereof when pressing force is released from the lever; a holding member for holding and protecting a lower end of the elastic member; a waterproof packing, pressed by the holding member due to an elastic force of the elastic member, thus closing an upper portion of the water outlet port of the body unit, with a shaft hole formed through the waterproof packing for insertion of the movable shaft into the shaft hole; and the movable shaft, passing through an upward movement- preventing piece which is in close contact with a lower surface of the shaft hole of the waterproof packing, in such a way as to protrude upwards from the shaft hole, the movable shaft having on an upper end thereof the locking step, which engages with the locking protrusion of the horizontal shaft.

[Claim 5]

The cock according to claim 1, wherein the control unit comprises: a control member mounted to a lower portion of the movable shaft of the actuating unit, thus opening and closing the lower portion of the water outlet port of the body unit; a downward movement-preventing piece mounted to the movable shaft so as to prevent movement of the control member; and a discharge guide member, detachably mounted to a lower end of the water outlet port of the body unit, and guiding purified water, which is discharged through the water outlet port, which is opened as the control member moves downwards, with air inlet holes radially formed through the discharge guide member and permitting inflow of external air when the purified water is discharged, the discharge guide member having a support step inside the air inlet holes.

[Claim 6]

The cock according to claim 5, further comprising: a diffusion preventing member provided between the control member and the discharge guide member, and guiding discharge of purified water, in addition to preventing purified water discharged through the water outlet port from diffusing.

[Claim 7]

The cock according to claim 6, further comprising: a sterilization member seated on the support step of the discharge guide member, and functioning to sterilize purified water which is discharged through the diffusion preventing member.

[Claim 8]

The cock according to claim 7, wherein the sterilization member is made of silver.

[Claim 9]

The cock according to claim 1, wherein the antibacterial unit comprises : an antibacterial cap closing an end of the path, with a space defined in the antibacterial cap and accommodating an antibacterial member, and guide projections radially formed on an outer circumference of the space; an antibacterial member, seated in the space of the antibacterial cap, and functioning to kill germs in purified water; and an antibacterial guide member coupled to the guide projections so as to prevent removal of the antibacterial member seated in the space of the antibacterial cap and guide movement of purified water.

[Claim 10] The cock according to claim 9, wherein the antibacterial member is a ceramic filter. [Claim ll]

The cock according to claim 1, further comprising: a purified water blocking unit for blocking supply of purified water to the path of the body unit, thus allowing the control unit to be easily separated from the movable shaft of the actuating unit.

[Claim 12]

The cock according to claim 11, wherein the purified water blocking unit comprises: a purified water blocking opening formed through the housing of the body unit in such a way as to communicate with the path of the body unit; a purified water blocking part inserted into the purified water blocking opening, and rotated forwards and backwards, thus opening or closing the path; and a support member secured to the purified water blocking opening in such a way that an end of a rotation guide member of the purified water blocking part protrudes out, and preventing removal of the purified water blocking part.

[Claim 13]

The cock according to claim 12, wherein the purified water blocking part comprises: a sealing member, inserted into the purified water blocking opening of the body unit in such a way as to be in close contact with an inner surface of the path; and a rotation guide member for rotating the sealing member. [Claim 14]

The cock according to claim 13, further comprising: a magnet installed in the rotation guide member, and functioning to convert purified water into magnetized hexagonal water .