JP3642763B2 - Stationary water purifier - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention fills a filter material filling container having a water supply port and a water discharge port, passes raw water such as tap water supplied from the water supply port through the filter material, and discharges the raw water from the water discharge port. It relates to a water purifier that purifies raw water.
[0002]
[Prior art]
In recent years, purifiers are becoming popular 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 such as suppressing bacterial growth in the water purifier or draining residual water.
[0003]
As a stationary water purifier having such a device, for example, Japanese Patent Application Laid-Open No. 10-15542 “filter cartridge for water purifier” is known.
According to FIG. 1 of the above publication, the above-described technique accommodates the inner container 3 in which the filter body 4 (the reference numeral is diverted from the reference numeral described in the publication) and the inner container 3 and the filter body 5 are accommodated. A water purifier filtration cartridge 1 composed of an outer container 2, wherein a drain hole 23 is formed at the bottom of the outer container 2 to drain water accumulated in the water purifier filtration cartridge 1 when the water purifier is stopped. is there.
[0004]
[Problems to be solved by the invention]
However, the water purifier filtration cartridge 1 can drain water in the water purifier filtration cartridge 1 when the water purifier is stopped, and can prevent bacterial growth. However, each time the water purifier is used, the water purifier filtration cartridge 1 is used. When the water in the cartridge 1 is drained and the water purifier is used in a short use cycle, there is an inconvenience that it takes time until the water comes out.
Moreover, since the water in a water purifier is extracted every time it uses, the usage-amount of water will be caused and the running cost of a water purifier will also increase.
That is, an energy-saving (economic) stationary water purifier that meets the needs of users is desired.
[0005]
Accordingly, an object of the present invention is to provide a stationary water purifier that allows the user to select a mode for discharging the water in the water purifier when the use is stopped and a mode for holding the water in the water purifier when the use is stopped according to the needs of the user. Is to provide a vessel.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, claim 1 is a water purifier provided with a drain valve on the ceiling of the filter medium container in order to drain the raw water remaining in the filter medium container when the use is stopped. An air introduction hole for removing raw water remaining by introducing air into the filter medium container, a float that opens and closes the air introduction hole according to the water level of the filter medium container, and the vertical movement range of this float A height setting member disposed on the lower surface of the float for restriction and an operation member capable of operating the height setting member from the outside of the filter medium container are provided.
[0007]
For example, when using a stationary water purifier in a short interval, operate the operating member from the outside of the filter medium container, raise the height setting member, and always make the float block the air introduction hole, Keep the water in the filter container when the use is stopped.
In addition, when the stationary water purifier is used at a long interval, the operation member is operated from the outside of the filter medium container, the height setting member is lowered, and the float can be lowered with the water level when the pressure in the filter medium container is lowered. In this way, the air in the filter medium container is discharged when the use is stopped by opening the air introduction hole.
[0008]
That is, by providing the water drain valve with an air introduction hole, a float, a height setting member and an operation member, a mode for discharging the water in the filter medium container when the use is stopped, and a water in the filter medium container when the use is stopped. The mode to be held can be selected according to the needs of the user. Thereby, the propagation of bacteria in the filter medium container can be prevented, inconvenience such as lack of water immediately can be eliminated, and water can be saved. As a result, the convenience of the user of the stationary water purifier can be improved.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the 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 a water supply hose 13 is connected to the faucet 12. The raw water such as tap water is injected into the stationary water purifier 10 through the water, the purified water purified by the stationary water purifier 10 is returned from the water discharge hose 14 to the switching cock 11 side, and the purified water is taken out from the switching cock 11. To connect. 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 the raw water is directly discharged.
[0010]
2 is a cross-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 includes a base pedestal 23 having a water supply port 21 and a water discharge port 22, an inner pedestal 24 and an outer pedestal 25 placed on the base pedestal 23, and the inner pedestal 24 and the outer pedestal 25. A filter medium container 26 attached to the base base 23, a filter medium 27 housed 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 filter medium And a drain valve 40 provided on the ceiling 29 of the container 26.
In the figure, 32 is disposed below the filter material 27 to support the lower part of the water supply pipe 28 and the lower support member, and 33 is disposed above the filter material 27 to support the upper part of the water supply pipe 28 and the upper support member. It is. The lower / upper support members 32 and 33 are members to which a non-woven fabric is attached (or insert-molded), and serve to prevent the filter medium 27 from flowing out.
[0011]
That is, the stationary water purifier 10 guides raw water such as tap water injected from the water supply port 21 to the upper part of the filter medium container 26 through the water supply pipe 28, and passes the raw water from the upper part to the lower part of the filter medium 27. The raw water is purified, and the purified water is discharged from the switching cock 11 through the water discharge hose 14 from the water discharge port 22.
[0012]
Next, the structure of the drain valve 40 will be described.
FIG. 3 is an exploded perspective view of the drain valve of the stationary water purifier according to the present invention. The drain valve 40 is attached to the ceiling 29 of the filter medium container 26 and is rotatable about the valve body 41. An operation member 42 to be attached, an operation knob 43 attached to the operation member 42 integrally, a height setting member 45 attached to the operation member 42 via a pin 44 so as to be vertically slidable, and an upper surface of the height setting member 45 The float 46 to be placed, a packing 47 interposed between the valve body 41 and the lower surface of the ceiling 29, and an O-ring 48 interposed between the valve body 41 and the operation member 42.
The water drain valve 40 is also an air intake valve for extracting water remaining in the filter medium container 26 by taking air into the filter medium container 26.
[0013]
The valve body 41 has a cylindrical portion 51, a flange 53 provided on the cylindrical portion 51, an oval cylindrical portion 54 formed on the flange 53, and a pin 44 that can be slid up and down by being provided on the cylindrical portion 51. It comprises long holes 55 and 55 for guiding, 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.
[0014]
The operation member 42 includes a cylindrical portion main body 61, a flange portion 62 formed on the cylindrical portion main body 61, a male screw portion 63 formed on the flange portion 62, and an O-ring groove formed on the outer surface of the cylindrical portion main body 61. 64, a retaining ring fitting groove 65 formed on the outer surface of the cylindrical portion main body 61, cam holes 66 and 66 for moving the pin 44 up and down by forming in the cylindrical portion main body 61, and an inner surface of the cylindrical portion main body 61 It is composed of a conical portion 67 to which the float 46 is applied and a communication hole 68 formed continuously with the conical portion 67.
[0015]
In the operation knob 43, a female screw portion 72 into which the male screw portion 63 of the operation member 42 is screwed is formed in the main body portion 71, and an air introduction hole 73 is formed in the upper portion of the female screw portion 72.
The height setting member 45 is a substantially rectangular block, and in order to slide the inner surface 69 of the cylindrical portion main body 61 up and down, circular guide portions 74... The same applies hereinafter), an insertion hole 75 for inserting the pin 44 was formed, and through holes 76 and 76 for allowing water to enter and exit freely were formed.
[0016]
The float 46 is a spherical member and is formed of an elastic material that floats on water, such as ethylene rubber.
The packing 47 is a member in which an oval hole 77 is formed in a circular elastic member to be fitted into the oval cylindrical portion 54.
[0017]
FIG. 4 is a perspective view of the water drain valve of the stationary water purifier according to the present invention, and FIG. 5 is a perspective view showing the internal structure of the water drain valve of the stationary water purifier according to the present invention.
The stationary water purifier 10 (see FIG. 1) is a water purifier having a drain valve 40 on the 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. The air introduction hole 73 for removing the raw water remaining by introducing air into the filter medium container 26 into the water drain valve 40 and the air introduction hole 73 that moves up and down according to the water level of the filter medium container 26. A float 46 that opens and closes, a height setting member 45 disposed on the lower surface of the float 46 to restrict the vertical movement range of the float 46, and the height setting member 45 is operated from outside the filter medium container 26. It can be said that the operation member 42 is provided.
[0018]
6 is a cross-sectional view taken along line 6-6 of FIG. 4 and shows a front cross-section of the drain valve 40. FIG.
For example, when the stationary water purifier 10 (see FIG. 1) is used at a short interval, the operation member 42 is operated from the outside of the filter medium container 26, the height setting member 45 is raised, and the float 46 is always introduced with air. By closing the hole 73, the water in the filter medium container 26 can be held while the use is stopped.
[0019]
Further, when the stationary water purifier 10 is used at a long interval, the operation member 42 is operated from the outside of the filter medium container 26, the height setting member 45 is lowered, and the water level is lowered when the pressure in the filter medium container 26 is lowered. Accordingly, the float 46 can be lowered 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.
[0020]
The stationary water purifier 10 (see FIG. 1) includes the air introduction hole 73, the float 46, the height setting member 45, and the operation member 42 in the drain valve 40, so that the water in the filter medium container 26 is stopped when the use is stopped. The mode for discharging the water and the mode for holding the water in the filter medium container 26 when the use is stopped can be selected according to the needs of the user. Thereby, the propagation of bacteria in the filter medium container 26 can be prevented, inconvenience such as lack of water immediately 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 on the filter medium container 26, and 79 denotes a retaining ring for preventing the operation member 42 from coming off from the valve body 41.
Next, the operation of the stationary water purifier 10 described above will be described.
FIGS. 7A and 7B are operation explanatory views (No. 1) 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, and the float 46 is pressed against the conical portion 67 of the operation member 42. The air conduction hole 73 was set in a closed state. In (b), the water tap 12 (see FIG. 1) is opened, and raw water 18 such as tap water is poured into the filter medium container 26. When the faucet 12 is closed in this state, the raw water 18 remains in the filter medium container 26.
That is, the inconvenience such as the fact that the purified water does not come out immediately can be eliminated, and the water can be saved.
[0022]
8 (a) and 8 (b) are operation explanatory views (No. 2) of the stationary water purifier according to the present invention.
In (a), by turning the operation knob 43, the height setting member 45 is lowered from the outside of the filter medium container 26, and the float 46 is separated from the conical portion 67 of the operation member 42. The hole 68 is released, and the air conduction hole 73 is set in an open state.
In (b), when the faucet 12 (see FIG. 1) is opened and raw water 18 such as tap water is injected into the filter medium container 26, the float 46 rises as shown by the arrow in accordance with the water surface level and opens the communication hole 68. The air conduction hole 73 is closed. Thereby, the raw water 18 does not blow out from the air conduction hole 73, and there is no hindrance to the water purification function.
[0023]
FIG. 9 is an operation explanatory view (No. 3) of the stationary water purifier according to the present invention.
When the faucet 12 (see FIG. 1) is closed in the state shown in FIG. 8B, 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 is lowered, the float 46 is lowered as shown by the arrow, the float 46 is separated from the conical portion 67 of the operation member 42, the air introduction hole 73 is opened, and the water in the filter medium container 26 can be drained.
[0024]
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 the water in the filter medium container 26 when the use is stopped, and a filtration when the use is stopped. The mode for holding the water in the material container 26 can be selected according to the needs of the user. Thereby, the propagation of bacteria in the filter medium container 26 can be prevented, and purified water can be discharged as soon as water is passed, and water saving can also be achieved.
[0025]
FIG. 10 is a front sectional view of a drain valve of another embodiment of the stationary water purifier according to the present invention. The same parts as the drain valve 40 are denoted by the same reference numerals and detailed description thereof is 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 a packing, 48 is an O-ring, 78 is a C-ring, 79 is a retaining ring. The operation member 82 is divided into a cylindrical main body 81 and a conical member 87 formed of an elastic body in the cylindrical main body 81, and a rigid material is used for the float 86.
That is, the drainage valve 80 can increase the degree of freedom in design by making the operation member 82 into a divided configuration of the cylindrical body 81 and the conical member 87.
[0026]
In the embodiment, the rigid material float 86 is used in the drain valve 80 as shown in FIG. 9, but the invention is not limited to this, and an elastic float may be used.
[0027]
【The invention's effect】
The present invention exhibits the following effects by the above configuration.
According to the first aspect of the present invention, the air introduction hole for removing the raw water remaining by introducing air into the filter medium container and the air introduction hole are opened and closed according to the water level of the filter medium container. Since it has a float, a height setting member arranged 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 the outside of the filter medium container The mode for discharging the water in the filter medium container when the use is stopped and the mode for holding the water in the filter medium container when the use is stopped can be selected according to the needs of the user.
Thereby, propagation of bacteria in the filter medium container can be prevented, and purified water can be discharged as soon as water is passed, and water saving can also be achieved. 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. 3 is an exploded view of a drain valve of the stationary water purifier according to the present invention. FIG. 4 is a perspective view of a water drain valve of a stationary water purifier according to the present invention. FIG. 5 is a perspective view showing an internal structure of a water drain valve of the stationary water purifier according to the present invention. FIG. 7 is a sectional view taken along line 6-6. FIG. 7 is an explanatory diagram of the operation of the stationary water purifier according to the present invention (part 1).
FIG. 8 is a diagram for explaining the operation of a stationary water purifier according to the present invention (part 2).
FIG. 9 is a diagram for explaining the operation of a stationary water purifier according to the present invention (part 3).
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.
DESCRIPTION OF SYMBOLS 10 ... Stationary type water purifier, 26 ... Filter material container, 29 ... Ceiling, 40,80 ... Drain valve, 42 ... Operation member, 45 ... Height setting member, 46 ... Float, 73 ... Air introduction hole.

Claims (1)

A water purifier equipped with a drain valve on the ceiling of the filter medium container to drain the raw water remaining in the filter medium container when the use is stopped,
The drain valve includes an air introduction hole for removing raw water remaining by introducing air into the filter medium container, and a float that opens and closes the air introduction hole according to the water level of the filter medium container. And a height setting member arranged on the lower surface of the float to regulate the vertical movement range of the float, and an operation member capable of operating the height setting member from the outside of the filter medium container. A stationary water purifier characterized by that.

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