JP2007125534A - Filter case for water cleaner and water cleaner provided with filter utilizing the filter case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filter case which facilitates replacement of a filter, and also can permanently keep a sealing function, and to provide a water cleaner easily usable without depending on the inside/outside. <P>SOLUTION: The filter case is composed of: a filter storage tube with one end bottomed tubular shape for storing a filter; an inner cover for sealing the opening part in the upper end of the filter storage tube; and an upper cover provided with a feed port engaged with the upper part of the inner cover and feeding a liquid to the inside of the filter storage tube via the inner cover and with an exhaust port for exhausting the liquid fed to the inside of the filter storage tube via the inner cover. The inner cover is fitted so as to be freely attachable/detachable to/from the filter storage tube, the lower face of the upper cover is provided with annular groove parts, and O-rings are arranged at the groove parts. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a filter case used for a filter for a water purifier and a water purifier provided with a filter using the filter case. It is related with a water purifier provided with a filter case and a filter using the filter case.

  Environmental pollution associated with industrial development is a serious problem, and in particular, the problem of water pollution has not been solved yet. In urban areas, in order to purify the collected water, a large amount of chemical substances for water purification such as chlorine are administered in the water purification process. As a result, in urban areas, the water supplied from the Waterworks Bureau has a little odor and is not suitable for beverages.

The deterioration of drinking water quality in apartment buildings is even more serious. Drinking water supplied from the Waterworks Bureau is temporarily stored in a water storage tank provided in the housing complex, and supplied from the water storage tank to each house in the housing complex.
Collective housing water tanks are regularly cleaned by the housing management company, but they are not always sanitary due to insufficient cleaning work, damage to the water tank, or rust on the inner wall of the water tank. Is currently not being supplied.
Therefore, in recent years, many water purifiers for personally purifying water have been put on the market.

Patent document 1 is disclosing the filter case which can be used for the water purifier for purifying water personally. FIG. 10 shows a filter structure of a water purifier disclosed in Patent Document 1.
A filter structure used in a conventional water purifier includes a case main body (B) formed in a substantially bottomed cylindrical shape, a closing member (C) for closing the lower end opening of the case main body (B), and a case main body (B ) A filter (F) formed in a cylindrical shape housed inside, and an annular seal member (S) disposed in the case body (B) internal corner corner and the closing member (C) internal corner corner. .
A supply port for supplying water is provided at the center of the closing member (C), and a discharge port for discharging water that has passed through the filter (F) is provided on the upper surface of the case body (B). B) Impurities contained in the passing water are removed by the internal filter (F).
The seal member (S) is formed to be bent, and includes a peripheral area around the corner edge of the filter (F) (the upper surface edge and upper peripheral surface of the filter (F) and the lower surface edge and lower peripheral surface of the filter (F)). It abuts and is sandwiched between the filter (F), the inner wall of the case main body (B) and the inner wall of the closing member (C), and prevents water components that do not pass through the filter (F) from being discharged from the discharge port.

JP 2002-224505 A

When the above filter structure is used, the procedure for replacing the clogged filter is as follows.
First, the screwing between the closing member (C) and the case main body (B) is released, and the filter (F) inside the case main body (C) is removed.
Then, a new filter (F) is arranged inside the case main body (B), and the closing member (C) is attached to the case main body (B) again.
The seal member (S) exerts a sealing function by pressing the filter (F), the inner wall of the case body (B), and the closing member (C) with a force generated by compressive deformation. Therefore, it is formed from a rubber plate.
Such a rubber plate exhibits a high frictional force on the upper and lower surfaces of the filter (F), and since the closing member (C) is rotated when attached to the case body (B), the filter (F) is replaced when the filter is replaced. As a result, a twisting force is applied to the filter (F) and the filter (F) may be damaged due to the twisting force.

In order not to generate a twisting force, a method of fitting the closing member (C) into the case main body (B) is also conceivable.
However, even with this method, when the filter (F) is inserted into the case body (B), or when the filter (F) is fixed to the closing member (C), the seal member (S) and the filter (F ) A frictional force is generated with the peripheral surface, and this frictional force causes the seal member (S) to wear out. As a result, the sealing member (S) loses its sealing function over time.

Therefore, the filter structure used for the water purifier for purifying water personally or in the home requires not only the ease of replacement of the filter but also the function that the seal member can be replaced using a generally available seal member. Is done.
However, the filter structure as shown in FIG. 10 uses a seal member (S) made in accordance with the case shape. Therefore, the seal member (S) cannot be easily replaced.
Therefore, when the sealing member (S) cannot sufficiently perform the sealing function, the entire filter structure is discarded.

The problem of filter replacement as described above is common not only to the technique disclosed in Patent Document 1, but also to other filters. This inconvenience of filter replacement often results in contacting the water purifier vendor at the time of filter replacement, requiring the labor of the water purifier vendor to collect the water purifier and replace the filter. It is supposed to be.
Therefore, it can be said that the conventional water purifier cannot be easily handled even if it is used for personal water purification at home.

Furthermore, conventionally, there is no water purifier used outdoors because there is no water purifier that can be handled easily.
Due to the recent trend of outdoor recreation, opportunities for cooking outdoors are increasing. In such cases, tap water is usually used for drinking or cooking water. Alternatively, well water may be used, but in recent years, the quality of well water may be deteriorated due to industrial waste illegally dumped in the mountains.
Therefore, the demand for water purifiers that can be easily handled outdoors will increase in the future.

  The present invention has been made in view of the above circumstances, and can be easily replaced regardless of whether it is a filter case that can be easily replaced with a filter and that can permanently secure a sealing function, both indoors and outdoors. The purpose is to provide a possible water purifier.

According to the first aspect of the present invention, there is provided a filter housing cylinder having a bottomed end that houses a filter, an inner lid that seals an upper end opening of the filter housing cylinder, and an upper portion of the inner lid that engages with the filter. A supply port capable of supplying liquid to the inside of the storage cylinder via the inner lid, and an upper lid provided with a discharge port capable of discharging the liquid supplied to the inside of the filter storage cylinder via the inner lid, The water purifier filter case is characterized in that a lid is detachably attached to the filter housing cylinder, an annular groove is provided on the lower surface of the upper lid, and an O-ring is disposed in the groove.
According to a second aspect of the present invention, the inner lid includes a base portion having a disk shape in plan view, an upper cylindrical portion projecting upward from the upper surface of the base portion, and an annular shape projecting downward from the lower surface of the base portion The upper cylinder part is composed of a cylindrical outer cylinder and a cylindrical inner cylinder arranged inside the outer cylinder, and an O-ring is attached to the outer cylinder in a pair of upper and lower sides, An opening is provided between the pair of O-rings, and the water supplied from the supply port is formed in the space formed between the outer cylinder and the inner cylinder via the opening formed in the outer cylinder. Into the filter housing cylinder, the lower end of the inner cylinder extends to the inside of the filter, and after water that has reached the filter housing cylinder passes through the filter, the lower end of the inner cylinder 2. The discharge from the discharge port through an opening formed at an upper end. Which is a water purifier filter case.
According to a third aspect of the present invention, the filter is formed in a cylindrical shape, a plurality of fixed pieces project downward from the lower surface of the base portion, and the fixed pieces are arranged at equal intervals around the inner cylinder. And it is a filter case for water purifiers of Claim 2 which presses the said filter upper surface.
According to a fourth aspect of the present invention, there is provided a water supply port that is provided on the outer surface of the housing and is supplied with water, and at least one filter that is connected to the water supply port and removes impurities contained in the water sent from the water supply port. A faucet that is connected to the filter and attached to the outer surface of the housing, a pressure pump that applies pressure to water sent to the filter, and a power source that supplies power to the pressure pump. The filter case is housed in a filter case housed in the housing, and the filter case has a one-end-bottomed tubular filter housing tube that houses the filter, and an inner lid that seals the upper end opening of the filter housing tube, A supply port that engages with the upper portion of the inner lid and can supply liquid to the inside of the filter housing cylinder via the inner lid, and allows the liquid supplied to the inside of the filter housing cylinder to pass through the inner lid. The upper cover is provided with a discharge port that can be discharged, and the inner cover is detachably attached to the filter housing cylinder, an annular groove is provided on the lower surface of the upper cover, an O-ring is disposed in the groove, and the power supply Is a water purifier characterized by being a storage battery that can store electricity from any of a household power supply, a vehicle battery, and a solar battery.

According to the first aspect of the present invention, by providing the inner lid and providing the seal structure between the inner lid and the upper lid, it is not necessary to dispose the seal structure inside the filter housing cylinder. This makes it possible to secure the sealing function with seal parts that can be obtained in the market, and it is possible to replace the filter without requiring a special technique.
Furthermore, since it is possible to secure the sealing function by using only seal parts available on the market, the sealing parts can be easily replaced when the sealing function deteriorates over time, and the sealing function can be permanently secured. is there.
According to invention of Claim 2, the liquid before filtration and the liquid after filtration can be reliably isolate | separated inside a filter case, and only the liquid after filtration can be discharged | emitted.
According to invention of Claim 3, it becomes possible to fix a filter reliably in a filter case.
According to invention of Claim 4, it becomes a water purifier which can be used regardless of indoors and outdoors, and becomes a water purifier with which filter replacement is easy.

Hereinafter, embodiments of a water purifier filter case and a water purifier using the water purifier filter case according to the present invention will be described.
FIG. 1 shows a longitudinal sectional view of a filter case for a water purifier.
The water purifier filter case (1) is attached to an opening formed at the upper end of the filter housing cylinder (2) having a bottomed cylindrical shape, and an inner lid (3) for sealing the opening. ) And an upper lid (4) attached to the upper portion of the inner lid (3).
In the example shown in FIG. 1, a cylindrical filter (5) is accommodated inside the filter accommodating cylinder (2).

Reference is now made to FIGS. FIG. 2 is a detailed external view of the upper lid (4), FIG. 2 (a) is a plan view of the upper lid (4), and FIG. 2 (b) is a front view of the upper lid (4). 2 (c) is a bottom view of the upper lid (4).
The upper lid (4) includes a base portion (41), an engaging portion (42) that protrudes from the bottom surface of the base portion (41) and is formed in an arc shape when viewed from the bottom, and is located above the top surface of the base portion (41). An upper cylinder housing part (43) formed in a cylindrical shape with a bottom having one end projecting to the upper surface, a supply port (44) and a discharge port (45) extending in a radial direction from the peripheral surface of the upper cylinder housing part (43), A reinforcing plate (46) extending in the radial direction from the peripheral surface of the upper cylinder housing part (43) and surrounding the upper cylinder housing part (43), and upward from the upper surface of the base part (41) The support plate (47) extends and is connected to the lower ends of the supply port (44) and the discharge port (45).

The base part (41) is formed in a disk shape, a part of the edge part thereof is cut off, and has a straight outline. On the lower surface of the base portion (41), the engaging portion (42) protrudes downward from the portion having the arcuate contour. The engaging portion (42) is formed in a substantially L-shaped cross section, and a protruding portion (421) formed in a bottom view arc shape is formed at the lower end of the inner peripheral surface of the engaging portion (42). The protruding part (421) protrudes inward of the engaging part (42).
An opening (411) is formed at the center of the lower surface of the base (41), and a cavity (431) extends upward from the opening (411) to form an internal space of the upper cylinder housing (43).
An annular groove (412) is further formed concentrically with the opening (411) on the lower surface of the base (41), and the groove (412) surrounds the opening (411).
The groove (412) is provided with an O-ring (6) (see FIG. 1), and the O-ring (6) is in close contact with the upper surface of the inner lid (3).

  The upper cylinder housing part (43) is formed in a cylindrical shape with one end so as to protrude upward from the base part (41). As described above, an opening (411) is provided at the lower end of the cavity (431), in which the cavity (431) is formed, inside the upper cylinder housing (43). Moreover, the upper part of the upper cylinder accommodating part (43) has block | closed the cavity part (431).

A supply port (44) and a discharge port (45) formed in a cylindrical shape extend in the radial direction from the outer peripheral surface of the upper tube housing portion (43). In the example shown in FIGS. 1 and 2, a pair of supply ports (44) and one discharge port (45) are shown, but the present invention is not limited to this, and the supply port (44) and the discharge port (45). The number of outlets (45) can be determined as appropriate according to the intended use of the filter case (1).
The inner surfaces of the supply port (44) and the discharge port (45) are preferably threaded. Accordingly, the fitting can be easily attached to the supply port (44) and the discharge port (45), and connection to other fluid control devices is facilitated via the fitting.
The internal space of the supply port (44) and the discharge port (45) communicates with the cavity (431) (see FIG. 1).

A disc-shaped reinforcing plate (46) further extends in the radial direction from the outer peripheral surface of the upper tube accommodating portion (43), and the reinforcing plate (46) is arranged in parallel to the upper surface of the base portion (41). Is done. The reinforcing plate (46) connects the peripheral surfaces of the supply port (44) and the discharge port (45). Accordingly, it is possible to prevent horizontal deformation of the supply port (44) and the discharge port (45) protruding in the radial direction from the peripheral surface of the upper cylinder housing portion (43), and the upper lid (4) is prevented from being deformed. It is possible to prevent the supply port (44) and the discharge port (45) from being damaged at the time of mounting.
The support plate (47) connects the lower ends of the supply port (44) and the discharge port (45) and the upper surface of the base part (41). Thereby, the bending deformation of the supply port (44) and the discharge port (45) in the vertical direction is prevented.

From the upper surface of the reinforcing plate (46), four connecting portions (461) formed in a cylindrical shape protrude upward. The connecting portion (461) is provided with a through hole in the axial direction, the through hole penetrates the reinforcing plate (46), and an opening is formed on the lower surface of the reinforcing plate (46). The four connection portions (461) are arranged at equal intervals so as to surround the periphery of the upper tube housing portion (43).
The connection portion (461) is used for fixing the filter case (1) to another member. Therefore, it is preferable that the inner peripheral surface of the connection portion (461) is threaded.

Reference is now made to FIGS. 3 shows details of the inner lid (3), FIG. 3 (a) is a plan view of the inner lid (3), and FIG. 3 (b) is a longitudinal sectional view of the inner lid (3). FIG. 3 (c) is a bottom view of the inner lid (3).
The inner lid (3) includes a base part (31) formed in a disc shape and a cylindrical upper tube part (32) protruding upward from the center of the upper surface of the base part (31).
The upper cylinder portion (32) includes an outer cylinder (321) formed in a cylindrical shape and a cylindrical inner cylinder (322) disposed inside the outer cylinder (321). The outer diameter of the inner cylinder (322) is smaller than the inner diameter of the outer cylinder (321), and a space is formed between the outer peripheral surface of the inner cylinder (322) and the inner peripheral surface of the outer cylinder (321). . The inner cylinder (322) is arranged at a position where the upper end of the inner cylinder (322) and the upper end of the outer cylinder (321) are flush with each other. The upper edge of the inner cylinder (322) and the upper edge of the outer cylinder (321) are It is connected by an annular wall (323) that forms the upper end of the cylindrical portion (32), and the annular wall (323) is a space formed between the outer peripheral surface of the inner cylinder (322) and the inner peripheral surface of the outer cylinder (321). Block the top.
Four connecting portions (324) formed in a plate shape from the outer peripheral surface of the inner cylinder (322) extend in the radial direction. The connecting portions (324) are arranged at equal intervals in a space formed between the outer peripheral surface of the inner cylinder (322) and the inner peripheral surface of the outer cylinder (321). This strengthens the connection between the inner cylinder (322) and the outer cylinder (324), and prevents the inner cylinder (322) from being bent in the radial direction when the inner cylinder (322) is inserted into the filter (5). .
The inner cylinder (322) is formed longer than the outer cylinder (321), protrudes downward through a through hole provided in the center of the base part (31), and the lower end of the inner cylinder (322) is the base part ( 31). Thereby, it becomes possible to insert the lower end portion of the inner cylinder (322) into the filter (5) formed in a cylindrical shape.

A plurality of annularly formed protrusions (325) are arranged on the outer peripheral surface of the outer cylinder (321), and the protrusions (325) extend in the radial direction of the outer cylinder (321). Thereby, a groove part (326) will be formed between protrusion parts (325). In the illustrated example, a pair of upper and lower grooves (326) are formed.
An O-ring (7) is disposed in the groove (326), and the O-ring (7) is in close contact with the inner wall surface of the upper cylinder housing (43).

Around the opening formed in the center of the base part (31), a plurality of fixing pieces (33) projecting downward from the lower surface of the base part (31) are arranged. The fixing pieces (33) are small plate-like pieces and are arranged at equal intervals around the opening in the center of the base portion (31).
The fixed piece (33) presses the upper surface of the filter (5) when the inner lid (3) is attached to the storage cylinder (2), and fixes the filter (5) in the internal cylinder direction of the storage cylinder (2). .
An annular protrusion (34) extends downward from the lower surface of the base (31). The protrusion (34) is formed so as to surround the outside of the plurality of fixed pieces (33). The protrusion (34) is fitted to the upper end of the housing cylinder (2), whereby the inner lid (3) is fixed on the housing cylinder (2), and the inner lid (3) is opened at the upper end of the housing cylinder (2). The part will be blocked.
If a threaded portion is formed on the upper end of the inner wall surface of the housing cylinder (2), a threaded portion is formed on the outer peripheral surface of the projecting portion (34), and the inner lid (3) is screwed onto the housing portion (2). A means for fixing them together can also be adopted.

FIG. 4 is a front view of the inner lid (3).
Out of the pair of protrusions (325) forming the O-ring groove (326) disposed on the outer peripheral surface upper side of the outer cylinder (321), the lower protrusion part (325) and the outer cylinder (32) outer peripheral surface lower side An opening (327) is formed in a portion of the outer cylinder (32) between the upper protrusion (325) of the pair of protrusions (325) forming the O-ring groove (326) disposed on the outer ring. It is formed.
The liquid that has entered the upper lid (4) from the supply port (44) is sealed at the top and bottom by a pair of upper and lower O-rings (7), and the inner peripheral surface of the upper cylinder housing (43) and the outer cylinder (321). ) Enter the space surrounded by the outer peripheral surface. Thereafter, the liquid enters the space formed between the outer peripheral surface of the inner cylinder (322) and the inner peripheral surface of the outer cylinder (321) through the opening (327) formed in the outer cylinder (321). Since the upper end of the space formed between the outer peripheral surface of the inner cylinder (322) and the inner peripheral surface of the outer cylinder (321) is closed by the annular wall (323), the liquid that has entered moves downward and is stored. It reaches the inside of the tube (2). The liquid that has entered the housing cylinder (2) passes through the upper surface or outer peripheral surface of the filter (5), enters the filter (5), and enters the cavity formed at the center of the filter (5). The liquid in the cavity passes through the inner cylinder (322) and is discharged from an opening formed at the upper end of the inner lid (3).
The discharge port (45) is sealed at the lower end by an upper O-ring of a pair of O-rings fitted to the outer cylinder (321), and is located at the upper part of the upper cylinder accommodating part (43) and the upper part of the outer cylinder (321). It communicates with the space surrounded by the outer peripheral surface. Thereby, the liquid discharged from the upper end opening of the inner lid (3) reaches the discharge port (45) and is discharged from the discharge port (45).

FIG. 5 is a developed view of the peripheral surface of the base portion (31) of the inner lid (3). FIGS. 5 (a) to 5 (c) show the engagement portion (42) of the upper lid (4) and the middle portion. The engagement process of a lid | cover (3) is shown.
The base portion (31) includes an annular rib (311) that is formed in a thin annular shape and extends radially from the lower peripheral surface of the base portion (31). Further, an arcuate engagement portion (312) formed in an arc shape extends from the upper peripheral surface of the base portion (31) in the radial direction. Thereby, a groove part (313) is formed between the annular rib (311) and the engaging part (312).
A guide piece (314) is disposed in the vicinity of one end of the groove (313). The guide piece (314) is formed in a substantially triangular prism shape, and the slope is directed upward.

In the state shown in FIG. 5A, the protruding portion (421) formed on the inner peripheral surface of the engaging portion (42) of the upper lid (4) is shown above the base portion (31) of the inner lid (3). ing.
Of the pair of engaging portions (312) formed on the inner lid (3), the arc-shaped interval connecting the right end portion of one engaging portion (312) and the left end portion of the other engaging portion (312) is: It is formed longer than the arc length of the protruding portion (421) formed on the inner peripheral surface of the engaging portion (42) of the upper lid (4). Therefore, when the upper lid (4) is approached from the upper side to the inner lid (3), the protrusion (421) of the upper lid (4) passes between the engaging portions (312) of the inner lid (3).
Then, as shown in FIG. 5B, the lower end corner of the projecting portion (421) abuts on the inclined surface of the guide piece (314) and is guided by the inclined surface of the guide piece (314) to move in the horizontal direction (FIG. 5 (c)).
Thus, the protrusion (421) enters the groove (313) formed between the engagement portion (312) and the annular rib (311), and the upper lid (2) and the inner lid (3) are engaged. To do.
Thus, engagement with an upper cover (4) and an inner cover (3) will be performed simply.

FIG. 6 shows an example of how the filter case (1) is used.
In the example shown in FIGS. 1 to 5, the description has been made using the form in which the filter (5) formed in a cylindrical shape is housed inside, but the present invention is not limited to this, and for example, a granular filter It is also possible to accommodate a filter that does not have a regularity, such as a filter or a fibrous filter, in the accommodating cylinder (2). At this time, it is preferable to extend the inner cylinder (322) to the vicinity of the bottom of the housing cylinder (2). As a result, only the filtered liquid can be reliably sent to the discharge port.

FIG. 7 is a configuration diagram of a water purifier configured using the filter case (1).
The water purifier (100) shown in FIG. 7 includes a first filter (101), a second filter (102), a third filter (103), a fourth filter (104), and a fifth filter (105). Is provided. In the example shown in FIG. 7, the filter case (1) described in relation to FIGS. 1 to 6 is used for the first filter (101).

In FIG. 7, a portion indicated by reference numeral I is a water supply unit, and water is supplied from the water supply unit. Ordinary tap water, well water, or water collected from a river is supplied from the water supply unit (I).
The water supplied from the water supply unit (I) reaches the second filter (102) disposed downstream of the water supply unit (I). The second filter (102) is filled with polypropylene fibers having a small fiber diameter. The second filter (102) removes impurities having a relatively large particle size, such as dust, dust, and other suspended matters contained in water.
The downstream side of the second filter (102) is connected to the pump (106), and the pump (106) forcibly sends the water that has reached the second filter (102) to the downstream side of the pump (106), Pressure is applied to water downstream of the pump (106).

The water delivered by the pump (106) reaches the third filter (103).
The third filter (103) is filled with activated carbon particles having a small particle size. The third filter (103) removes microorganisms, chlorine or organic matter from the water passing through the third filter (103).
The water filtered by the third filter (103) then reaches the first filter (101) via the shutoff valve (107).

A reverse osmosis membrane filter is arranged inside the first filter (101), the reverse osmosis membrane filter is formed in a substantially cylindrical shape, and is fixed in the filter case (1) in a state as shown in FIG. .
The reverse osmosis membrane filter has micropores having a diameter of about 0.0001 μm, and the size of the micropores is substantially the same as that of water molecules. The reverse osmosis membrane filter thereby reliably captures bacteria and impurities having a large molecular structure. Further, since the micropore is smaller than the size in which two water molecules are arranged, a film of water molecules is formed around the micropore. Ions dissolved in water cannot enter the water molecule film, and as a result, only water molecules can pass through the micropores.
Thereby, ions having the same size as water molecules can be removed.
The pump (106) loads the water with such a pressure that the water disposed in the first filter (101) can pass through the reverse osmosis membrane filter.

Two flow paths are formed on the downstream side of the first filter (101). One is a route toward the discharge port indicated by a symbol (O) in FIG. 7 via the flow rate control unit (108), and the other is a route toward the shut-off valve (107).
The path toward the discharge port (O) is mainly used for draining water from the water purifier (100).

A pressure switch (109) is arranged on the downstream side of the shutoff valve (107), and the pressure switch (109) is connected to the pressure tank (110) on the downstream side of the pressure switch (109). Is detected.
When the pressure tank (110) is filled with a predetermined amount of water and reaches a predetermined internal pressure, the pressure switch (109) sends a signal to the shut-off valve (107) to close the shut-off valve (107). Thereby, the path | route connected to a 1st filter (101) from a pressure tank (110) is closed.

The fourth filter (104) is connected in the middle of the path connecting the pressure switch (109) and the pressure tank (110).
The fourth filter (104) is filled with particles made of activated carbon. The activated carbon particles may have a larger diameter than the activated carbon particles disposed in the third filter (103).
When water is stored in the pressure tank (110), the odor of the parts constituting the pressure tank (110) may be transferred. A 4th filter (104) removes the odor component which moved to the water in a pressure tank (110). Furthermore, when the component which comprises activated carbon moves to water, the taste of the water which passes a 4th filter (104) will be improved.

A fifth filter (105) is disposed downstream of the fourth filter (104). The fifth filter (105) is filled with ceramic spheres that irradiate far infrared rays.
Usually, water exists in a state where water molecules are attached to each other. The far-infrared rays emitted from the ceramic spheres release the connection between the water molecules and make the water molecules dispersed. Thereby, it will change to water with a pleasant taste.
A faucet (111) is disposed downstream of the fifth filter (105), and a path between the fifth filter (105) and the faucet (111) is connected by a transparent tube. An ultraviolet lamp (112) is arranged near the transparent tube, and the ultraviolet lamp (112) irradiates the transparent tube with ultraviolet rays. By this ultraviolet irradiation, the water discharged from the faucet (111) is surely sterilized.

  When water is discharged from the faucet (111) and the pressure inside the pressure tank (110) decreases, the pressure switch (109) detects a pressure drop inside the pressure tank (110), and the pressure inside the pressure tank (110). When is below a predetermined threshold, the valve (107) is opened. Thereby, water is again supplied to the pressure tank (110).

  In the above description, the filter case (1) is used for the first filter (101), but the filter case (1) may be used for the other filters (102, 103, 104, 105). Since the first filter (101) uses a filter having the finest holes, clogging occurs earlier than the other filters (102, 103, 104, 105). Therefore, it is preferable to use the filter case (1) for the first filter (101) because it is possible to quickly replace the filter (5) quickly.

8 is a configuration diagram of the water purifier (100) described in FIG. 7, FIG. 8 (a) is a plan view of the water purifier (100), and FIG. 8 (b) is a side view of the water purifier (100). FIG.
The water purifier (100) shown in FIG. 8 is in a state where all the components of the water purifier (100) shown in FIG. 7 are accommodated in one housing (200). Although only the main configuration of the water purifier (100) is shown in FIG. 8, the pressure switch (109), the shut-off valve (107), the flow rate controller (108) or each component is connected. The pipeline to do is not shown. However, since these components have a small volume, they can be appropriately arranged and fixed in the gaps of the main components shown in FIG.

The first to fifth filters (101, 102, 103, 104, 105) are fixed to the side wall surface of the housing (200). For this fixing, a connecting portion (461) formed on the upper lid (4) is used. For example, by providing a through-hole that matches the position of the connection portion (461) on the side wall surface of the housing (200), and threading the connection portion (461), the first to fifth filters ( 101, 102, 103, 104, 105) can be easily fixed to the side wall surface of the housing (200).
In addition, it is preferable that the 1st thru | or 3rd filter (101,102,103) is distribute | arranged to a housing | casing (200) upper part. This is because these filters (101, 102, 103) arranged on the upstream side of the water purifier (100) need to be replaced more frequently than the other filters (104, 105).
Further, a pressure tank (110) and a pump (106) are arranged and fixed inside the housing (200). And these water purifier components are connected by the pipe line in the path | route as shown in FIG.

A storage battery (113) housed in a waterproof case is arranged inside the housing (200), and connectors (114, 115, 116) that are electrically connected to the storage battery (113) on the outer surface of the housing (200). ) Is placed.
The storage battery (113) is electrically connected to the pump (106) and other devices that are operated by electrical energy. And these operate | move with the electrical energy stored in the inside of a storage battery (113).

Each of the connectors (114, 115, 116) is connected to a household power source, a vehicle battery, and a solar cell panel, receives electric power from these power supply elements, and supplies electric energy to the storage battery (113). The supplied electrical energy is stored in the storage battery (113).
FIG. 9 is an external view of the housing (200).
The upper end opening of the housing (200) is closed by the lid (201). The lid (201) is attached via a hinge (202). The lid (201) prevents foreign substances such as dust from entering the water purifier (100).
A handle (203) is attached to the upper surface of the lid (201), and the housing (200) is easy to carry. As a result, the water purifier (100) can be used anywhere desired by the user. A connector (114) connectable to a household power source, a connector (115) connectable to a vehicle battery, and a connector (116) connectable to a solar battery panel are attached to the housing (200). The water purifier (100) can be used regardless of the outdoors.
A faucet (111) is detachably attached to the upper surface of the lid (201). When carrying the water purifier (100), it is preferable that the faucet (111) can be accommodated inside the housing (200).
The solar cell panel may be arranged on the upper surface of the lid (201), or may be arranged inside the casing (200) and taken out from the casing (200) as necessary. For example, a solar cell panel is attached to the edge of the lid (201) via a hinge, the solar cell panel is arranged on the back surface of the lid (201) when housed, and the solar cell panel is rotated during use to accommodate the housing (200) It is exposed to the outside.

  The present invention is suitably applied to a water purifier that can be used both indoors and outdoors.

It is a longitudinal cross-sectional view of the filter case which concerns on this invention. It is a figure which shows the upper cover of the filter case which concerns on this invention. It is a figure which shows the inner cover of the filter case which concerns on this invention. It is a front view of the inner lid of the filter case according to the present invention. It is an expanded view of the base part surrounding surface of the inner cover of the filter case which concerns on this invention. It is a figure which shows an example of the usage condition of the filter case which concerns on this invention. It is a block diagram of the water purifier which concerns on this invention. It is a layout of the component of the water purifier concerning the present invention. It is an external appearance perspective view of the housing | casing of the water purifier which concerns on this invention. It is a figure which shows the conventional water purifier.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Filter case 100 ... Water purifier 2 ... Filter accommodation cylinder 200 ... Case 3 ... Middle cover 321 ... Outer cylinder 322 ... Inner cylinder 327 ... Opening part 33 ... Fixing piece 34 ... Projection part 4 ... Top cover 44 ... Supply port 45 ... Discharge port 5 ... Filter

Claims (4)

A filter housing tube having a bottom end and a tubular shape that houses the filter;
An inner lid for sealing the upper end opening of the filter housing cylinder;
A supply port that engages with the upper portion of the inner lid and can supply liquid to the inside of the filter housing cylinder via the inner lid, and discharges the liquid supplied to the inside of the filter housing cylinder through the inner lid. Consisting of a top cover with possible outlets,
The inner lid is detachably attached to the filter housing cylinder;
An annular groove is provided on the lower surface of the upper lid,
A water purifier filter case, wherein an O-ring is disposed in the groove. The inner lid has a disk-shaped base portion in plan view;
An upper cylindrical portion protruding upward from the upper surface of the base portion;
It consists of an annular protrusion that protrudes downward from the bottom surface of the base part,
The upper tube portion is a cylindrical outer tube,
It consists of a cylindrical inner cylinder arranged inside the outer cylinder,
A pair of upper and lower O-rings are attached to the outer cylinder, and an opening is provided between the pair of O-rings.
The water supplied from the supply port flows into the space formed between the outer cylinder and the inner cylinder through the opening formed in the outer cylinder, enters the filter housing cylinder,
The lower end of the inner cylinder extends to the inside of the filter,
The water that has reached the filter housing cylinder passes through the filter and is then discharged from the discharge port from the lower end of the inner cylinder through an opening formed at the upper end of the inner cylinder. The filter case for water purifier of description. The filter is formed in a cylindrical shape;
A plurality of fixed pieces project downward from the lower surface of the base part,
The filter case for a water purifier according to claim 2, wherein the fixed pieces are arranged around the inner cylinder at equal intervals and press the upper surface of the filter. A water supply port provided on the outer surface of the housing and supplied with water;
At least one filter connected to the water supply port and removing impurities contained in water sent from the water supply port;
A faucet connected to the filter and attached to the outer surface of the housing;
A pressurizing pump that applies pressure to the water sent to the filter;
A power supply for supplying power to the pressure pump;
The filter is housed in a filter case housed in the housing;
The filter case includes a filter housing cylinder having a bottomed end that houses a filter, an inner lid that seals an upper end opening of the filter housing cylinder, an upper portion of the inner lid, and an inner portion of the filter housing cylinder. A supply port through which the liquid can be supplied through the inner lid, and an upper cover having a discharge port through which the liquid supplied into the filter housing cylinder can be discharged through the inner cover. Removably attached to the filter housing cylinder, an annular groove is provided on the lower surface of the upper lid, and an O-ring is disposed in the groove.
The said power supply is a storage battery which can be stored from any of a household power supply, a vehicle battery, and a solar battery.

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