JP2019181417A - Water purifier - Google Patents

Abstract

To provide a water purifier capable of treating leakage by evaporation by reducing the amount of leakage during cartridge replacement and without using a drain pipe for draining the leakage to the outside.SOLUTION: By providing a casing 1 for removing a cartridge 2 with the cartridge facing upward, the amount of water leakage is reduced by the Torricellian effect. By providing a cartridge side connection portion 22 with a surface tension maintaining mechanism that maintains the surface tension of the liquid to be treated, water leakage is further reduced. The amount of water leakage can be reduced by a check valve 16. Further, the vaporization treatment is reliably performed by a water absorption and vaporization cloth 3 that absorbs water leakage and evaporates later.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a water purifier.

  Conventionally, tap water has been obligated to add chlorine for sterilization, and there is little concern that tap water will be contaminated by various bacteria, but the taste of water has been impaired by the odor of chalk. It has also been confirmed that trihalomethane having carcinogenicity is produced in tap water by reacting chlorine with organic substances such as humic substances contained in tap water. Furthermore, due to recent pollution of rivers and lakes, etc., it has been confirmed that a source of mold odor is contained as a trace component in tap water using these as raw water. Therefore, water purifiers are widely used to remove substances that impair the taste of water and harmful substances.

  The general structure of the water purifier is configured to include a cartridge having a filter body inside and a water discharge passage for discharging the water to be treated purified in the cartridge to the outside.

JP 2014-131781 A Design Registration No. 1530662

  The water purifier is used by replacing the cartridge in order to maintain the performance of the filter body. In the conventional submarine type water purifier (Patent Document 2) and built-in type water purifier, when the water purifier cartridge is removed from the water purifier casing, the treated water that flows out from each connection port and accumulates in the water purifier casing is drained. It was discharged | emitted out of the casing for water purifiers via the connection part for drains, and the piping for drains. The submarine type water purifier is a water purifier in which the cartridge can be exchanged from the top of the kitchen when the lid is removed, and the casing body of the water purifier is located below the top of the system kitchen, leaving a part.

  For this reason, there was a problem that sewage flows backward from the drain pipe to the water purifier or insects enter.

  The present invention makes it possible to reduce the amount of water leakage during cartridge replacement, without using a drain pipe for draining the water leakage to the outside, and to evaporate the water leakage by placing a water absorption and vaporizing cloth on the bottom surface of the casing. An object is to provide a water purifier.

The water purifier of the present invention is
A water purifier for purifying the liquid to be treated,
A cartridge having a filter body inside;
A casing to which the cartridge is connected,
The casing has a cylindrical shape with an opening for inserting / removing the cartridge at the top, and has a cylindrical casing side connection portion for connecting the cartridge at the bottom, and the casing side connection portion An inflow channel through which the liquid to be processed flows into the cartridge, and a water discharge channel through which the liquid to be processed in the cartridge is discharged through the casing side connection portion,
The cartridge has a cylindrical cartridge side connection portion connected to the casing side connection portion,
One of the casing side connection part and the cartridge side connection part is inserted and connected to the other,
The cartridge-side connecting portion includes a surface tension maintaining mechanism that maintains the surface tension of the liquid to be processed.

  According to this feature, since the cartridge is pulled out directly upward, water leakage is reduced by the Trichelli effect. A small amount of water leakage occurs before stabilization (the cartridge moves with acceleration) at the time of the initial extraction, but the amount of water leakage due to surface tension is also reduced. In addition, the water purifier which extracts a cartridge toward right above is disclosed by patent document 1, and is provided with a surface tension maintenance mechanism.

The water purifier of the present invention is
The surface tension maintaining mechanism is one or two or more linear members or a plate-like member having a surface parallel to the liquid flow direction to be processed.
The linear member or the plate-like member is made of synthetic resin or metal, and is arranged so as to divide a cross section intersecting with the liquid flow direction to be processed at the lower end of the cylindrical connecting part on the cartridge side. And

  According to this feature, the effective diameter of the cylinder of the cartridge side connection portion is reduced, and the surface tension is increased.

The water purifier of the present invention is
The surface tension maintaining mechanism is a lower end of the cartridge side connecting portion having a diameter of 5 mm to 17 mm.

  According to this feature, the effective diameter of the cartridge side connection portion is small and sufficient surface tension can be obtained without having a special member.

The water purifier of the present invention is
The water discharge flow path is provided with a check valve for preventing the liquid to be treated from flowing out from the upper end of the casing main body water discharge side connection part at the time of cartridge replacement,
The check valve is urged toward the upper end of the casing main body water discharge side connection part.

  According to this feature, the water leakage before stabilization at the time of the initial extraction is reduced by the check valve and is reduced in volume. Note that a check valve is generally installed at the casing main body inflow side connecting portion in order to prevent a backflow from the cartridge to the inflow piping.

The water purifier of the present invention is
A water absorption and vaporization cloth is provided on the bottom surface of the casing,
A vent hole is provided on a side surface of the casing.

  According to this feature, the water leakage can be held on the water absorption and vaporization cloth inside the bottom surface of the casing and vaporized later.

The water purifier of the present invention is
A drain part is provided on the bottom surface of the casing,
A tubular member is provided which is connected to the lower side of the drain part and surrounds the water absorption and vaporization cloth hanging from the drain part.

  This feature also allows water leakage to be retained on the water absorption and vaporization fabric and later vaporized. In this case, it is not necessary to provide a vent hole.

  ADVANTAGE OF THE INVENTION According to this invention, the water purifier which can process a water leak by vaporization can be provided, without using the drain piping for reducing the water leak in cartridge replacement | exchange, and draining a water leak outside.

FIG. 1 is a diagram illustrating a casing. FIG. 2 is a diagram illustrating the cartridge. FIG. 3 is a diagram illustrating a casing side connection portion and a cartridge side connection portion on the water discharge side. FIG. 4 is a diagram showing a surface tension maintaining mechanism. FIG. 5 is a diagram showing a surface tension maintaining mechanism. FIG. 6 is a view showing a surface tension maintaining mechanism. FIG. 7 is a diagram showing a vaporization mechanism. FIG. 8 is a diagram showing a mechanism of vaporization.

  Examples of the present invention will be described below.

  The water purifier is a submarine type water purifier or a built-in type water purifier provided with a cartridge 2 having a filter body 23 inside and a casing 1 to which the cartridge 2 is connected.

  FIG. 1 is a diagram illustrating a casing. The casing 1 includes a casing-side connecting portion 12 provided at the bottom of the casing body 11, an opening 13 provided above, and a vent hole 14 provided on a side surface. The opening 13 can be closed by the lid 15. In addition, although the two casing side connection parts 12 of the inflow side connection part and the water discharge side connection part are drawn in the figure, the connection part for drains may be added and three or more casing side connection parts 12 may be used.

  FIG. 2 is a diagram illustrating the cartridge. The cartridge 2 includes a cartridge side connection portion 22 provided at the bottom of the cartridge main body 21, and a filter body 23 is provided. A handle 24 is also provided. In the drawing, two cartridge side connection portions 22 are drawn, ie, an inflow side connection portion and a water discharge side connection portion. Water flows in the direction of the white arrow in the figure.

  When the cartridge 2 is mounted on the casing 1, the cartridge 2 is moved directly downward so that the cartridge side connection portion 22 is inserted into the casing side connection portion 12.

  When removing the cartridge 2 from the casing 1, the cartridge 2 is moved directly upward so that the cartridge side connection portion 22 is removed from the casing side connection portion 12. At this time, the handle 24 can be held and operated.

  Here, the cartridge 2 can be fixed to the casing 1 by the lid portion 15 or by a meshing structure (not shown) such as inserting a metal rod. Moreover, it is good also as performing by an electromagnet (not shown).

  FIG. 3 is a diagram illustrating a casing side connection portion and a cartridge side connection portion. FIG. 3 is a cross-sectional view showing a casing-side connecting portion 12 and a cartridge-side connecting portion 22 in a state where the cartridge 1 shown in FIG. 2 is mounted on the casing 1 shown in FIG.

  As shown in the figure, the cartridge side connection portion 22 is inserted into the casing side connection portion 12. In order to remove the cartridge side connection portion 22 from the casing side connection portion 12, the cartridge side connection portion 22 (cartridge 2) is moved right above. The casing-side connection portion 12 may be inserted into the cartridge-side connection portion 22.

  The cartridge side connection part 22 becomes an inflow port to the cartridge of the water to be treated or a water discharge port from the cartridge of the water to be treated.

  A portion of the casing side connection portion 12 on the water discharge side below the cartridge side connection portion 22 on the water discharge side is a water discharge passage 17, and a check valve 16 is provided in the water discharge passage 17. The check valve 16 is, for example, a spring disk type check valve, and when there is no liquid flowing from the cartridge side connection portion 22 to the casing side connection portion 12, the valve is moved upward by the spring (upstream side of the liquid to be circulated). ) And pressed.

  When the cartridge 2 is replaced, water to be treated is held in the cartridge 2 (cartridge side connection portion 22) before replacement. When the cartridge side connection portion 22 is removed from the casing side connection portion 12, the water to be treated leaks from the upper end of the casing side connection portion water discharge side, but the amount thereof is made small.

  Since the cartridge side connecting portion 22 (cartridge 2) is moved directly above (in the direction opposite to the gravitational acceleration), in principle, no water leaks from the lower end of the cartridge side connecting portion 22 due to the Trichelli effect. Further, water leakage is also prevented by the atmospheric pressure received by the lower end portion (A-A line in the figure) of the cartridge side connection portion 22 and the liquid holding force of the filter body 23. However, a small amount of water leaks until the movement becomes stable, such as when the movement has acceleration.

  Such a small amount of water leakage can be reduced by the surface tension of the water to be treated at the lower end portion of the cartridge side connection portion 22. This is because the surface tension becomes a force that hinders water leakage (movement downward of the water to be treated).

  FIG. 4 is a diagram showing a surface tension maintaining mechanism. FIG. 4 is a view showing a cartridge side connection portion 22 in a cross section taken along line AA in FIG. 3. Since the surface tension at the end of the cylinder increases as the diameter of the cylinder decreases, the cross section may be divided by the linear member 25 as shown in FIGS. (A) is 2 divisions, (B) is 3 divisions, (C) is 4 divisions, (D) is a figure which shows 6 divisions. The surface tension may be further increased by dividing the number into a larger number.

  As the linear member 25, it is preferable to use, for example, a stainless steel wire having a diameter of 0.5 to 0.8 mm in consideration of the antibacterial property of the water purifier when the cartridge is not replaced.

  FIG. 5 is a diagram showing a surface tension maintaining mechanism. This is a modification to FIG. Although FIG. 5A corresponds to FIG. 4A, the linear member 25 may be curved. FIGS. 5B and 5C correspond to FIG. 4C, but the two linear members 25 may have different curved shapes, one being a linear shape and the other being a curved shape. It may be. In this way, the shape of the linear member 25 may be arbitrarily designed.

  FIG. 6 is a view showing a surface tension maintaining mechanism. 4 and 5 shows another form. FIG. 6A shows a cross section taken along line BB in FIG. Two linear members 25 are shown in accordance with reference numerals 25a and 25b in FIG.

  FIG. 6B shows another embodiment. A plate member 26 is used instead of the linear member 25 in FIGS. The plate-like member 26 has a surface parallel to the liquid flow direction (the vertical direction in the drawing). The plate-like member 26 is seen extending in the vertical direction of the drawing.

  The surface tension maintaining mechanism can be configured without using the linear member 25 and the plate-like member 26. In FIG. 3, if the diameter R of the lower end hole 27 of the cartridge side connection portion 22 is small, the lower end of the cartridge side connection portion 22 (the periphery of the lower end hole 27) serves as a surface tension maintaining mechanism. This is because the diameter R of the cartridge side connecting portion is small and sufficient surface tension can be obtained.

  Here, when the diameter R is too small, the pressure loss of the water to be treated increases and the flow rate decreases. On the other hand, if the diameter R is too large, a sufficient surface tension cannot be obtained, and air easily enters from the lower end hole, which makes it difficult for the Trichelle effect to occur. The diameter R is preferably 5 mm or more and 17 mm or less.

  In addition to the surface tension maintaining mechanism described above, the check valve 16 can also reduce the amount of water leakage. When the cartridge 2 is replaced, there is no flow of water to be treated at the connection position between the cartridge side connection portion 22 and the casing side connection portion 12, and the check valve 16 is pressed upstream by a spring. That is, it is a bottom lid when viewed from each upper end of the casing side connection portion 12.

  When the check valve 16 is below the upper end of the casing side connection portion 12, the water to be treated that has accumulated above the check valve of the casing side connection portion 12 is stabilized and the surface tension is maintained. In addition, the check valve on the inflow side is generally provided in the lower end portion on the inflow side of the casing side connection portion 12.

  When the check valve 16 is above the casing-side connection portion 12 water discharge side upper end in the water discharge flow path including the water discharge pipe and water faucet water discharge passage, from the check valve to the casing side connection portion 12 water discharge side upper end The treated water does not flow back due to the Trichelli effect and is stable, and the surface tension is maintained at the upper end of the casing-side connecting portion 12 on the water discharge side.

  Hereinafter, vaporization of the leaked water that occurs even though the amount is reduced will be described. Due to the mechanism described above, the amount of water leakage in the cartridge exchange is reduced to about 3 to 5 ml. For example, it is an amount that can be evaporated and vaporized in 24 hours.

  FIG. 7 is a diagram showing a vaporization mechanism. Compared to FIG. 1, the casing 1 is provided with a water absorption and vaporization cloth 3 below the upper end of the casing side connection portion 12. The leaked water is absorbed by the water absorption and vaporization cloth 3 and vaporizes later. At that time, since the air in the casing body 11 is replaced by the vent hole 14, reliable vaporization is performed.

  As the water absorption and vaporization cloth 3, it is preferable to use an antibacterial polyester nonwoven fabric or the like.

  FIG. 8 is a diagram showing a mechanism of vaporization. This is a mechanism different from that shown in FIG. Compared to FIG. 1, the casing 1 is provided with a drain portion 18 at the bottom. The water leakage moves to the drain portion 18 by a capillary phenomenon generated in the water absorption and vaporization cloth. The vent hole 14 is not provided.

  A water-absorbing and vaporizing cloth 3 laid on the inside of the bottom of the casing body is provided with a shape part that hangs down from the drain part, and water leakage is moved to the sag-shaped part by capillary action and vaporized. In this case, a tubular member for vaporization such as a lattice or net-like side surface surrounding the hanging portion of the water-absorbing and vaporizing cloth 3 and a material made of resin or metal may be connected below the drain portion. When the water leakage exceeds the water absorption capacity of the water absorption / vaporization cloth 3, the lower part of the vaporization tubular member connected to the drain portion 18 is temporarily stored as the water leakage receiver 19, and then the water absorption / vaporization cloth 3 again from the water leakage reception 19. Vaporize by moving moisture to the hanging part of the water.

  In this case, unlike the case shown in FIG. 7, the water-absorbing and vaporizing cloth 3 can be visually recognized. Therefore, a colored cloth whose hue changes due to water absorption may be used. Further, the vent hole 14 may not be provided.

  As described above in detail, the water purifier of the present embodiment includes the casing 1 that is pulled out with the cartridge 2 facing upward, thereby reducing the amount of water leakage due to the Trichelli effect. By providing the cartridge side connection portion 22 with a surface tension maintaining mechanism that maintains the surface tension of the liquid to be treated, water leakage is further reduced. A small amount of water leakage by the check valve 16 is also possible. Further, the vaporization treatment is reliably performed by the water absorption and vaporization cloth 3 that absorbs water leakage and evaporates later.

  It is a water purifier capable of treating leakage by vaporization without reducing drainage in cartridge replacement and using a drain pipe for draining the leakage to the outside. There is no problem that sewage flows backward from the drain pipe to the water purifier or insects invade, and it can be used by many people.

DESCRIPTION OF SYMBOLS 1 Casing 11 Casing main body 12 Casing side connection part 13 Opening 14 Ventilation hole 15 Cover part 16 Check valve 17 Water discharge flow path 18 Drain part 19 Water leak receiver 2 Cartridge 21 Cartridge main body 22 Cartridge side connection part 23 Filter body 24 Handle 25 Wire -Like member 26 Plate-like member 27 Lower end hole 3 Water absorption and vaporization cloth

Claims (6)

A water purifier for purifying the liquid to be treated,
A cartridge having a filter body inside;
A casing to which the cartridge is connected,
The casing has a cylindrical shape with an opening for inserting / removing the cartridge at the top, and has a cylindrical casing side connecting portion for connecting the cartridge at the bottom, and the casing side connecting portion An inflow channel through which the liquid to be processed flows into the cartridge and a water discharge channel through which the liquid to be processed in the cartridge is discharged;
The cartridge has a cylindrical cartridge side connection portion connected to the casing side connection portion,
One of the casing side connection portion and the cartridge side connection portion is inserted and connected to the other,
The water purifier, wherein the cartridge side connecting portion includes a surface tension maintaining mechanism that maintains a surface tension of the liquid to be treated. The surface tension maintaining mechanism is one or two or more linear members or a plate-like member having a surface parallel to the liquid flow direction.
The linear member or the plate-like member is made of synthetic resin or metal, and is arranged so as to divide a cross section intersecting with the liquid flow direction to be processed at the lower end of the cylindrical connecting portion of the cartridge. The water purifier according to claim 1.   The water purifier according to claim 1, wherein the surface tension maintaining mechanism is a lower end of the cartridge side connection portion having a diameter of 5 mm or more and 17 mm or less. The water discharge flow path is provided with a check valve for preventing a backflow of the liquid to be treated toward the upper end of the casing side connection part,
The water purifier according to any one of claims 1 to 3, wherein the check valve is biased toward an upper end of the casing-side connection portion. A water absorption and vaporization cloth is provided inside the bottom surface of the casing,
The water purifier according to any one of claims 1 to 4, wherein a ventilation hole is provided on a side surface of the casing. A drain part is provided on the bottom surface of the casing,
The water purifier according to any one of claims 1 to 4, further comprising a tubular member that is connected to a lower portion of the drain portion and surrounds a water absorption and vaporization cloth that hangs down from the drain portion.