JP2003305459A - Fixed type water purifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water purifier directly connected to a faucet for enabling a user to select a mode for discharging the water in the water purifier in stopping using the water purifier and a mode for holding the water in the water purifier in stopping using the water purifier in accordance with his/her needs. <P>SOLUTION: In this water purifier provided with a drain valve 40 on the ceiling 29 of a filter medium container 26 to remove raw water of service water remaining in the filter medium container 26 in stopping using the water purifier, the drain value 40 is provided with an air introduction hole 73 for removing the remaining raw water by introducing air into the filter medium container 26, a float 46 that goes up and down in accordance with the water level of the filter medium container 26 to open/close the air introduction hole 73, a height setting member 45 disposed at the bottom face of the float 46 to control the vertical moving range of the float 46, and an operation member 42 that can operate the height setting member 45 from the outside of the filter medium container 26. <P>COPYRIGHT: (C)2004,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter material-filled container provided with a water supply port and a water discharge port, filled with a filter material, and a tap water supplied to the filter material from a water supply port. The present invention relates to a water purifier that purifies raw water by passing raw water such as water and discharging the raw water from a water outlet. [0002] In recent years, purifiers have become widespread for home use or business use. For example, since water purifiers often have residual water, bacteria may be generated if the residual water stays in the water purifier for a long period of time. Therefore, various attempts have been made to suppress the growth of bacteria or drain residual water in a water purifier. [0003] As a stationary water purifier that has been devised in this way, for example, Japanese Patent Application Laid-Open No. H10-15542 entitled "Filter Cartridge for Water Purifier" is known. According to FIG. 1 of the gazette, the above-described technique includes an inner container 3 containing a filter 4 (the reference numeral is the same as that described in the gazette), a container 3 containing the inner container 3 and a filter 5. A water purifier filtration cartridge 1 comprising an outer container 2 and a water draining hole 23 formed at the bottom of the outer container 2 to drain water retained in the water purifier filter cartridge 1 when the use of the water purifier is stopped. is there. However, in the filter cartridge 1 for a water purifier, when the use of the water purifier is stopped, the water in the filter cartridge 1 for the water purifier can be drained, and the propagation of bacteria can be prevented. However, when the water purifier is used, the water in the water purifier filtration cartridge 1 is drained, and when the water purifier is used in a short use cycle, there is an inconvenience that it takes time until the water comes out. In addition, since the water in the water purifier is drained each time it is used, the amount of water used increases, and the running cost of the water purifier also increases. That is, an energy-saving (economical) stationary water purifier that meets the needs of the user is desired. Therefore, an object of the present invention is to make it possible to select a mode for discharging water in the water purifier when the use is stopped and a mode for holding water in the water purifier when the use is stopped according to the needs of the user. An object of the present invention is to provide a stationary water purifier. [0006] In order to achieve the above object, a first aspect of the present invention is to provide a drainage valve on the ceiling of the filter medium container in order to drain raw water remaining in the filter medium container when use is stopped. Water purifier, an air introduction hole for removing residual raw water by introducing air into the filter material container, and an air intake hole that moves up and down according to the water level of the filter material container. A float that opens and closes, a height setting member disposed on the lower surface of the float to regulate the vertical movement range of the float, and an operation member that can operate the height setting member from outside the filter medium container, It is characterized by having. For example, when the stationary water purifier is used at short intervals, the operating member is operated from outside the filter medium container, the height setting member is raised, and the float is always in a state in which the air introduction hole is closed. In this way, the water in the filter medium container is maintained when the use is stopped. When the stationary water purifier is used at long intervals, the operating member is operated from outside the filter medium container, the height setting member is lowered, and when the pressure in the filter medium container is lowered, the float can be lowered with the water level. In this way, the air in the air introduction hole is released, so that the water in the filter medium container is discharged when the use is stopped. [0008] That is, an air introduction hole,
By having a float, a height setting member and an operation member,
A mode in which the water in the filter medium container is discharged when the use is stopped and a mode in which the water in the filter medium container is held when the use is stopped can be selected according to the needs of the user. This can prevent the growth of bacteria in the filter media container,
Inconvenience such as not running out of water can be eliminated immediately, and water can be saved. As a result, the convenience of the user of the stationary water purifier can be improved. Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is a perspective view showing a connection state of a stationary water purifier according to the present invention. The stationary water purifier 10 is connected to a faucet 12 via a switching cock 11 so that
Raw water, such as tap water, is injected into the stationary water purifier 10 through the water supply hose 13, and the purified water purified by the stationary water purifier 10 is returned from the water discharge hose 14 to the switching cock 11 side,
The switching cock 11 is connected so as to take out purified water. Further, the switching cock 11 serves to switch between a mode in which raw water such as tap water is injected into the stationary water purifier 10 and a mode in which raw water is directly discharged. FIG. 2 is a sectional view taken along line 2-2 of FIG. 1 and shows the internal structure of the stationary water purifier 10. The stationary water purifier 10
A base 23 having a water inlet 21 and a water outlet 22; an inner pedestal 24 and an outer pedestal 25 mounted on the base 23; and an inner pedestal 24 and an outer pedestal 25
A filter medium container 26 attached to the base 23 via
A filter medium 27 stored in the filter medium container 26, a water supply pipe 28 disposed in the filter medium container 26 so as to penetrate the center of the filter medium 27, and a drain valve provided on a ceiling 29 of the filter medium container 26. 40. In the figure, 32
Reference numeral 33 denotes a lower support member that supports the lower portion of the water supply pipe 28 by being disposed below the filter medium 27, and 33 denotes an upper support member that supports the upper portion of the water supply pipe 28 by being disposed above the filter medium 27. Also, the lower and upper support members 32,
Reference numeral 33 denotes a member to which a nonwoven fabric is stuck (or insert-molded), and serves to prevent the filtration material 27 from flowing out. That is, the stationary water purifier 10 is provided with the water supply port 2.
Raw water such as tap water injected from 1 is supplied to the upper part of the filter medium container 26 by a water supply pipe 28, and the raw water is passed from the upper part to the lower part of the filter medium 27, thereby purifying the raw water and discharging the purified water. Water is discharged from the switching cock 11 through the water discharge hose 14 from the water port 22. Next, the structure of the drain valve 40 will be described. FIG. 3 is an exploded perspective view of a drain valve of the stationary water purifier according to the present invention.
6, a valve body 41 mounted on the ceiling 29, an operation member 42 rotatably mounted on the valve body 41, an operation knob 43 integrally mounted on the operation member 42, and a vertical slide on the operation member 42 via a pin 44. A height setting member 45 to be mounted, a float 46 placed on the upper surface of the height setting member 45, a packing 47 interposed between the valve body 41 and the lower surface of the ceiling 29, and a valve body 41
And an O-ring 48 interposed between the control member 42 and the operation member 42. The drain valve 40 is also an air intake valve for removing air remaining in the filter medium container 26 by taking air into the filter medium container 26. The valve body 41 has a cylindrical portion 51, a flange 53 provided on the cylindrical portion 51, an oval-shaped cylindrical portion 54 formed on the flange 53, and a pin 44 provided on the cylindrical portion 51 to move the pin 44 up and down. A slot 55 that slides and guides,
55, and a C-ring fitting groove 56 provided in the oval cylindrical portion 54 for attachment to the filter medium container 26 (see FIG. 2). Reference numeral 57 denotes an inner surface of the cylindrical portion 51. The operating member 42 includes a cylindrical body 61, a flange 62 formed on the cylindrical body 61, a male thread 63 formed on the flange 62, and a cylindrical body 61.
O-ring groove 64 formed on the outer surface of
A retaining ring fitting groove 65 formed on the outer surface of the
Cam holes 66, 66 for moving the pin 44 up and down, a conical portion 67 formed on the inner surface of the cylindrical portion main body 61 to hit the float 46, and a conical portion 67
And a communication hole 68 formed so as to be continuous. The operation knob 43 is attached to the main body 71 by the operation member 4.
A female screw portion 72 into which the two male screw portions 63 are screwed is formed, and an air introduction hole 73 is formed above the female screw portion 72. The height setting member 45 is a substantially rectangular block. In order to slide the inner surface 69 of the cylindrical portion main body 61 up and down, circular guide portions 74... And the same shall apply hereinafter), and the insertion hole 7 into which the pin 44 is inserted.
5 and through holes 76, 76 that allow water to enter and exit freely.
Was formed. The float 46 is a spherical member and is formed of an elastic material floating on water such as ethylene rubber.
The packing 47 is a member in which an oval hole 77 to be fitted to the oval cylindrical portion 54 is formed in a circular elastic member. FIG. 4 is a perspective view of a drain valve of the stationary water purifier according to the present invention, and FIG. 5 is a perspective view showing an internal structure of the drain valve of the stationary water purifier according to the present invention. The stationary water purifier 10 (see FIG. 1) is a water purifier provided with a drain valve 40 on a ceiling 29 of the filter medium container 26 in order to drain raw water such as tap water remaining in the filter medium container 26 when the use is stopped. Then, an air introduction hole 7 for removing the residual raw water by introducing air into the filter medium container 26 to the drain valve 40.
3, a float 46 that opens and closes the air introduction hole 73 up and down according to the water surface level of the filter medium container 26, and a height setting member disposed on the lower surface of the float 46 to regulate the vertical movement range of the float 46 45 and the height setting member 4
5 can be operated from the outside of the filter medium container 26. FIG. 6 is a sectional view taken along line 6-6 of FIG. For example, when the stationary water purifier 10 (see FIG. 1) is used at short intervals, the operating member 42 is operated from outside the filter medium container 26, the height setting member 45 is raised, and the float 46 is always supplied with air. By keeping the hole 73 closed, it is possible to keep the water in the filter medium container 26 held when the use is stopped. When the stationary water purifier 10 is used at a long interval, the operating member 42 is operated from outside the filter medium container 26 to lower the height setting member 45 so that the pressure in the filter medium container 26 decreases. At this time, the float 46 can be lowered with the water level, and the air introduction hole 73 is released so that the water in the filter medium container 26 is discharged when the use is stopped. The stationary water purifier 10 (see FIG. 1) is provided with an air introduction hole 73, a float 46, a height setting member 45, and an operation member 42 in the drain valve 40, so that the filter medium container 26 can be used when the use is stopped. It is possible to select a mode for discharging water from the inside and a mode for holding water in the filter medium container 26 when the use is stopped according to the needs of the user. As a result, the growth of bacteria in the filter medium container 26 can be prevented, inconvenience such as running out of water can be eliminated, and water can be saved. As a result, the convenience of the user of the stationary water purifier 10 can be improved. Reference numeral 78 denotes a C ring for stopping the valve body 41 in the filter medium container 26;
Shows a retaining ring for preventing the operation member 42 from coming off in the valve body 41. The operation of the stationary water purifier 10 described above will be described below. FIGS. 7A and 7B are explanatory diagrams (1) of the operation of the stationary water purifier according to the present invention. In (a), by turning the operation knob 43, the height setting member 45 is raised from the outside of the filter medium container 26, the float 46 is pressed against the conical portion 67 of the operation member 42, and the communication hole 68 is formed by the float 46. And the air conducting hole 73 is set in a closed state. In (b), the faucet 12 (see FIG. 1) is opened, and the raw water 18 such as tap water is injected into the filter medium container 26. When the faucet 12 is closed in this state, the raw water 18 is
6 will remain. In other words, inconveniences such as the impossibility of immediately purifying water can be eliminated, and water can also be saved. FIGS. 8 (a) and 8 (b) are diagrams for explaining the operation of the stationary water purifier according to the present invention (part 2). In (a), by turning the operation knob 43, the height setting member 45 is lowered from outside the filter medium container 26, and the float 46 is separated from the conical portion 67 of the operation member 42 so that the float 46 communicates with the float 46. The hole 68 is released, and the air conducting hole 73 is set in an open state. In (b), when the faucet 12 (see FIG. 1) is opened and the raw water 18 such as tap water is injected into the filter medium container 26, the float 46 rises as indicated by the arrow according to the water surface level, and the communication hole 68 is opened. The air conducting hole 73 is closed and closed. Thus, the raw water 18 does not blow out from the air passage hole 73, and there is no hindrance to the water purification operation. FIG. 9 is an operation explanatory view (3) of the stationary water purifier according to the present invention. Faucet 1 in the state shown in FIG.
When 2 (see FIG. 1) is closed, the water pressure of the raw water 18 disappears, and the pressure in the filter medium container 26 decreases. Then, as the water surface level 19 decreases, the float 46 descends as shown by the arrow, the float 46 separates from the conical portion 67 of the operation member 42, opens the air introduction hole 73, and drains the water in the filter medium container 26. That is, by providing the water drain valve 40 with the air introduction hole 73, the float 46, the height setting member 45, and the operation member 42, a mode for discharging water from the filter medium container 26 when use is stopped, The mode for holding the water in the filter medium container 26 at the time of stoppage can be selected according to the needs of the user. Thereby, the filter medium container 26
Bacteria can be prevented from breeding inside, water can be discharged as soon as water is passed, and water can be saved. FIG. 10 is a front sectional view of a water drain valve of another embodiment of the stationary water purifier according to the present invention. The same parts as those of the water drain valve 40 are denoted by the same reference numerals, and detailed description thereof will be omitted. In the figure, 41 is a valve body, 43 is an operation knob, 44 is a pin, 45 is a height setting member, 47 is packing, and 48 is O
A draining valve 80 includes a cylindrical main body 81 and a conical member 8 formed of an elastic body in the cylindrical main body 81.
7 and the float 86 is made of a rigid material. That is, the water drain valve 80 can have a greater degree of freedom in design by forming the operating member 82 into a divided configuration of the cylindrical main body 81 and the conical member 87. In the embodiment, as shown in FIG. 9, a float 86 made of a rigid material is used in the water drain valve 80. However, the present invention is not limited to this, and a float made of an elastic material is used. Is also good. According to the present invention, the following effects are exerted by the above-mentioned structure. According to the first aspect of the present invention, an air introduction hole for removing residual raw water by introducing air into the filter medium container, and an air introduction hole that opens and closes up and down according to the water surface level of the filter medium container, in the drain valve. A float, a height setting member disposed on the lower surface of the float to regulate a vertical movement range of the float, and an operation member capable of operating the height setting member from outside the filter medium container. The mode in which the water in the filter medium container is discharged when the use is stopped and the mode in which the water in the filter medium container is held when the use is stopped can be selected according to the needs of the user. As a result, the growth of bacteria in the filter medium container can be prevented, the purified water can be discharged as soon as water is passed, and water can be saved. As a result, the convenience of the user of the stationary water purifier can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a connection state of a stationary water purifier according to the present invention. FIG. 2 is a sectional view taken along line 2-2 of FIG. 1 FIG. FIG. 4 is an exploded perspective view of a water drain valve of the water purifier. FIG. 4 is a perspective view of a water drain valve of the stationary water purifier according to the present invention. FIG. 5 is a perspective view showing an internal structure of the water drain valve of the stationary water purifier according to the present invention. FIG. 6 is a sectional view taken along line 6-6 in FIG. 4. FIG. 7 is an explanatory view of the operation of the stationary water purifier according to the present invention (part 1). FIG. 8 is an operational explanatory view of the stationary water purifier according to the present invention. (Part 2) FIG. 9 is a view for explaining the operation of the stationary water purifier according to the present invention (part 3). FIG. 10 is a front sectional view of a drain valve of another embodiment of the stationary water purifier according to the present invention. Description: 10: stationary water purifier, 26: filter material container, 29: ceiling,
40, 80: drain valve, 42: operating member, 45: height setting member, 46: float, 73: air introduction hole.

Claims (1)

Claims: 1. A water purifier provided with a drain valve on a ceiling of a filter material container for draining raw water remaining in the filter material container when use is stopped, wherein the water drain valve comprises: An air introduction hole for removing residual raw water by introducing air into the filter medium container, a float that opens and closes the air introduction hole up and down according to the water level of the filter medium container, A stationary apparatus comprising: a height setting member disposed on the lower surface of the float for regulating a moving range; and an operating member capable of operating the height setting member from outside the filter medium container. Type water purifier.