JPH0138548B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a water purifier, and more particularly, to a water purifier mainly used in households to remove minute impurities and odors contained in water. Concerning vessels.

(Prior Art) Generally, water used as drinking water is disinfected with chlorine to maintain free residual chlorine of 0.1 PPM or more for hygiene reasons, as stipulated by the enforcement regulations of the Water Supply Act. Since the drinking water is disinfected with chlorine, it can be used without any particular sanitary problems.

However, before drinking water can actually be accessed from a faucet in a home or building, it must pass through intermediate pipes or a temporary storage tank. Therefore, the drinking water used from the above-mentioned taps currently contains impurities such as iron oxide, odors, and even germs.

BACKGROUND OF THE INVENTION Water purifiers have been developed and are now widely used to remove undesirable substances, odors, and germs contained in drinking water.

(Problems to be Solved by the Invention) The main components of the water purifier described above are to remove impurities, odors, and germs contained in drinking water, and include a filtration device to remove impurities, and a filtration device to eliminate odors. It consists of activated carbon and/or a sterilization device for sterilizing germs.

Among the main components of this water purifier, the filtration device for removing impurities is quite large, and the filtration capacity of the filter in the filtration device decreases when drinking water is used continuously. The filter must be cleaned or replaced. Cleaning or replacing the filter is a large-scale and extremely troublesome process, and requires time and maintenance.

(Object of the Invention) The object of the present invention was proposed in order to improve the problem in view of the above circumstances. The purpose is to provide a compact water purifier that can remove water.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a water purifier for removing minute impurities and odors contained in water. A filter device is provided in which a linear filter element is wound around the outer periphery of a cylindrical winding core frame provided approximately at the center of the filter, and a filter aid is sealed on the outer periphery of the linear filter element. A second invention is a water purifier, characterized in that a thin film filter bag is detachably placed on the water purifier, and activated carbon is provided in the lower part of the water purifier. This water purifier removes impurities and odors, and includes a filter device in which a linear filter element is wound around the outer circumferential surface of a cylindrical winding core frame provided approximately in the center of the water purifier, A thin filter bag filled with a filter aid is removably placed on the outer peripheral surface of the linear filter element, and activated carbon is provided in the lower part of the water purifier, and further, an outer peripheral frame of the water purifier is provided. At least a part of the first outer peripheral frame corresponding to the filter device in the body is made of a transparent member, and a color sample is provided on the outer peripheral frame near the transparent member to know when to replace the filter bag. This water purifier is characterized by:

(Function) By employing the present invention, when the filtration capacity of the filter device in a water purifier decreases and it is time to replace it, the filter bag detachably attached to the outer periphery of the filter element can be easily and easily replaced. All you have to do is do that.

In addition, in order to know when to replace the filter device when its filtration ability decreases, the first outer frame body corresponding to the filter device in the outer frame body of the water purifier is made of a transparent member, and the outer circumferential frame in the vicinity of the transparent member is You can replace the filter bag with a new one by providing a color sample on the body and confirming from the outside that the color of the filtered and colored filter bag is almost the same as the color sample, for example, the color of iron oxide. I can do it.

(Embodiments of the Invention) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

Referring to FIGS. 1 and 2, the water purifier 1 includes an outer frame 3, a filter device 5 provided in the longitudinal direction approximately in the center of the outer frame 3, and It is composed of activated carbon 7 and the like provided in the lower part in the direction.

The filter device 5 includes a winding core frame 11 in which filter elements 9 having a thickness of, for example, 30 to 50 μm are laminated on the outer peripheral surface, and a thin film in which a filter aid 13 such as diatomaceous earth is sealed in the outer peripheral surface of the filter elements 9. It is connected to the filter bag 15. The core frame body 1
Pressing plates 17 and 19 for holding down the filter element 9 are attached to the upper and lower ends in FIG. 1, respectively.

A large number of through holes 11H (see FIG. 3) are bored in the outer peripheral side surface of the winding core frame 11. The filter element 9 is made by coating a wire with a suitable coating, then winding it around a core frame 11 in a coil shape and stacking it, and then dissolving and removing the coating to form minute gaps. .

As shown in FIG. 3, a hollow portion 19 is formed between the winding core frame 11 and the filter element 9, and the hollow portion M communicates with the through hole 11H.

The thin filter bag 15 is made of, for example, polyethylene with very fine pores, and is adapted to allow water to flow through it by immersing it in water. Furthermore, as described above, a filter aid 13 such as diatomaceous earth is sealed in the thin filter bag 15 and is placed over the outer peripheral surface of the filter element 9. By flowing water containing impurities such as iron oxide from the outside to the inside of the filter bag 15, as shown in FIGS.
It is attracted to the outer circumferential surface of the Thus, a precoat P is formed on the outer peripheral surface of the filter element 9. (See FIG. 3) Therefore, impurities contained in the water adhere to the precoat P, and are further filtered through the filter element 9, and the filtered water flows through the through hole 11H to the core frame 11. It flows inside and is discharged, for example, downwardly as shown in FIG.

In order to remove impurities attached to the filter bag 15, the filter bag 15 is removed from the filter element 9 and replaced. In addition, if there are not many impurities attached to the filter bag 15, it is also possible to carry out backwashing, which will be described in detail later.

The degree to which impurities adhere to the filter bag 15 and the filtering function is no longer achieved varies depending on the quality of the water, but is usually at the point when about 50 to 1000 pieces of water have been used. Note that the filter bag 15 is the filter element 9.
Since it is simply put on and installed, even an amateur can easily replace it.

The outer peripheral frame 3 includes a first outer peripheral frame 21 that substantially corresponds to the filter device 5, and a second outer peripheral frame 23 that is detachable at the upper part of the first outer peripheral frame 21 in FIG. The first outer peripheral frame 21 and the first
In the figure, the third outer peripheral frame body 25 is detachable at the lower part.
It is composed of.

The first outer peripheral frame 21 has a cylindrical shape, for example,
Moreover, it is made of a transparent material such as acrylic. By making the first outer peripheral frame 21 a transparent member, it is possible to visually observe the state of impurity adhering to the filter bag 15 from the outside through the first outer peripheral frame 21 which is a transparent member.

In FIG. 1, the first outer circumferential frame 21 has a step cylindrical portion 21U having a step at its upper part, and a male thread 21S is carved on the outer periphery of the step cylindrical portion 21U. On the other hand, a female thread 23S is carved in a lower inner peripheral portion of the second outer peripheral frame 23 at a portion corresponding to the male thread 21S. Therefore, the first
The outer circumferential frame body 21 and the second outer circumferential frame body 23 can be freely attached and detached by screwing male screws 21S and female screws 23S together.

Further, in FIG. 1, the lower part of the first outer peripheral frame 21 is a stepped cylindrical part 21D having a step, similar to the upper part, and the outer peripheral part of the stepped cylindrical part 21D is
A male thread 21S is engraved. On the other hand, a female thread 25S is carved in the upper inner peripheral portion of the third outer peripheral frame 25 at a portion corresponding to the male thread 21S. Thus, the first outer peripheral frame 21 and the third outer peripheral frame 25 can be freely attached and detached by screwing the male thread 21S and the female thread 25S.

Furthermore, between the lower part of the first outer peripheral frame 21 and the third outer peripheral frame 25, a cylindrical body 2 as a color sample is provided.
7 is interposed therebetween, and the inner peripheral portion of this cylindrical body 27 is also provided with a female thread 27S. Therefore, the male thread 21S of the first outer peripheral frame 21 and the female thread 2 of the cylindrical body 27
7S is screwed together and detachably attached.

The outer peripheral surface of the cylindrical body 27 serving as a color sample is painted or colored with brown, that is, the iron oxide color of iron oxide, which is contained in a large amount among the impurities. Therefore, the color of the impurities adhering to the filter bag 15 described above is, for example, the color of the cylindrical body 2 as a color sample.
The filter bag 15 can be used efficiently by comparing the iron oxide color of the surface of the filter bag 7 and determining that the color is almost the same and replacing the filter bag 15. In addition, the filter bag 15 and the cylindrical body 2
The color of the surface 7 can be determined by visually observing it from outside the first outer peripheral frame 21 of the transparent member described above.

Although the cylindrical body 27 serving as a color sample is provided at the lower part of the first outer peripheral frame 21, it may be provided at the upper part.

The surface color of the second outer circumferential frame 23 and the third outer circumferential frame 25 is, for example, black to give an aesthetic appearance, but it is not limited to black in particular.

Upper step cylinder part 21U in the first outer peripheral frame
For example, a black rubber gasket 29 is attached to the groove of the second outer peripheral frame 23 in contact with the upper end of the housing to prevent water leakage.

A plurality of protrusions 31 protruding upward in FIG. 1 are integrally formed on the upper part of the second outer peripheral frame 23, and a bowl-shaped cap 33 is attached to the protrusions 31 for attachment and detachment. It's becoming possible. Inside the cap 33, there is a hollow cap plate 3.
5 is installed.

For example, a black rubber gasket 37 for preventing water leakage is attached to a stepped portion in the center of the upper plate 23P of the second outer peripheral frame 23.

For example, a chrome-plated annular faucet stopper 39 is erected on the upper plate 23P of the second outer peripheral frame 23. Attach to H. A second connection is made to the water faucet H via the faucet stopper 39.
When attaching the second outer frame 23, the cap 33 is removed from the second outer frame 23 and inserted into the water faucet H.

On the lower plate 21D of the first outer frame 21 between the outer circumference of the cylindrical body 19H of the presser plate 19 that presses the filter element 9 and the inner circumference of the lower part of the first outer frame 21. For example, a black rubber gasket 43 for preventing water leakage is attached to the housing.
Moreover, a male thread 19S is carved on the outer periphery of the body 19H of the holding plate 19, while a female thread 21S is carved on the inner periphery of the body of the lower plate 21D of the first outer peripheral frame 21. This male screw 1
9S and a female thread 21S are screwed together and can be attached and detached. Thus, the first outer peripheral frame 21 and the filter device 5 are removable.

The first outer frame 2 is located at the lower part of the third outer frame 25.
A groove is formed in the part where the lower end of 1 touches, and a black rubber gasket 4, for example, is inserted into the groove to prevent water leakage.
5 is installed.

The activated carbon 7 is removably attached to a stepped portion in the center of the third outer frame 25, which is detachably attached to the first outer frame 21. The activated carbon 7 is made of felt, for example, and is particularly effective in removing odor from water.

A protrusion 25T having a conical outer shape is integrally provided downward at the center of the lower end of the third outer peripheral frame 25 to allow filtered water to flow downward. There is.

Next, an example of how the water purifier 1 is used will be explained. The second outer peripheral frame 23 in the assembled water purifier 1
Remove the cap 33 from the tap and insert the cap 33 into the water faucet H. Next, the water purifier 1 is attached to the water faucet H by attaching the second outer peripheral frame 23 to the water faucet H using a plurality of bolts 41 via the faucet stopper 39.

In this state, by turning a faucet (not shown), the water flows into the space inside the water purifier 1 from above as shown by the arrow in FIG. The water flowing into the space is filtered through the filter device 5 as shown by the arrow.
The water flows through the filter bag 15 from the outer peripheral surface into the winding core frame body 11. As a result, a precoat P is formed by the action of the filter aid 13 enclosed in the filter bag 15, the filter element 9, and the winding core frame 11, and impurities contained in the water are transferred to the filter bag 15. It attaches and is filtered. The filtered water is
The water flows downward inside the winding core frame 11, the odor is eliminated by the activated carbon 7 attached to the third outer peripheral frame 25, and the water is free from impurities and odor and can be used.

The state of adhesion of impurities on the filter bag 15 is approximately the same as the iron oxide color of the surface of the cylindrical body as a color sample, for example, when viewed from the outside of the first outer peripheral frame 21 of the transparent member. When the levels are the same, the first outer frame 21 is removed from the second outer frame 23. Furthermore, the filter bag 15 attached to the outer peripheral part of the filter element 9 is removed and easily replaced with a new one, and the first outer peripheral frame 21 is replaced with a second one.
By attaching it to the outer peripheral frame 23 of the filter bag 15, the filter bag 15 can be easily replaced.

Further, when the filter bag 15 is still usable to remove impurities attached to the filter bag 15, the first outer peripheral frame 21 is removed from the second outer peripheral frame 23, and the first outer peripheral frame 21 is removed from the second outer peripheral frame 23. The third outer frame 25 is also removed from the outer frame 21, and the first outer frame 21 is turned upside down in FIG.
It is also possible to remove impurities adhering to the filter bag 15 by attaching it to the filter bag 15 and backwashing it with water.

Furthermore, when the activated carbon 7 is to be replaced, the third outer peripheral frame 25 can be removed from the first outer peripheral frame 21 to easily and easily replace the activated carbon 7.

Note that the present invention is not limited to the embodiments described above, and can be implemented in other embodiments by making appropriate changes.

(Effects of the Invention) As understood from the description of the embodiments above, according to the present invention, a filter bag containing a filter aid is attached to and detached from the outer periphery of a filter element of a filter device provided in a water purifier. Since the filter bag is freely attached, when impurities adhere to the filter bag and it no longer performs its filtration function, the filter bag can be removed from the filter element and replaced simply and easily.

In addition, the adhesion status of impurities on the filter bag can be determined by using the first outer peripheral frame as a transparent member.
It is possible to determine when it is time to replace the filter bag by visually observing from the outside that the color of the color sample provided near the outer frame of the filter has become almost the same as, for example, the iron oxide color. And it can be easily replaced in a short time.

Furthermore, the water purifier of the present invention is more compact than conventional water purifiers and can be manufactured at lower cost.

[Brief explanation of drawings]

FIG. 1 is a front sectional view of a water purifier showing an embodiment of the present invention, and FIG. 2 is a plan view of FIG. 1. FIG. 3 is an enlarged view of the portion shown by the arrow in FIG. Explanation of the symbols representing the main parts of the drawing, 1...
Water purifier, 3... Outer frame, 5... Filter device, 7... Activated carbon, 9... Filter element, 11
... Winding core frame body, 13 ... Filtration aid, 15 ... Filter bag, 21 ... First outer peripheral frame body, 23 ...
Second outer peripheral frame, 25...Third outer peripheral frame, H...
...Water faucet.

Claims (1)

[Claims] 1. A water purifier that removes minute impurities and odors contained in water, the water purifier having a linear shape on the outer periphery of a cylindrical winding core frame provided approximately in the center of the water purifier. A filter device is provided in which a filter element is wound around the linear filter element, and a thin film filter bag containing a filter aid is removably attached to the outer peripheral surface of the linear filter element. A water purifier characterized by having activated carbon in its part. 2 A water purifier that removes minute impurities and odors contained in water, in which a linear filter element is wound around the outer circumferential surface of a cylindrical winding core frame provided approximately in the center of the water purifier. A filter device is provided,
A thin filter bag filled with a filter aid is removably placed on the outer peripheral surface of the linear filter element, and activated carbon is provided in the lower part of the water purifier, and further, an outer peripheral frame of the water purifier is provided. At least a part of the first outer peripheral frame corresponding to the filter device in the body is made of a transparent member, and a color sample is provided on the outer peripheral frame near the transparent member to know when to replace the filter bag. A water purifier featuring: 3. The outer peripheral frame is characterized by comprising a first outer peripheral frame portion corresponding to the filter device, and second and third outer peripheral frame portions that are detachably attached above and below the first outer peripheral frame portion. A water purifier according to claim 2.