WO2012093535A1

WO2012093535A1 - Water treatment device

Info

Publication number: WO2012093535A1
Application number: PCT/JP2011/078043
Authority: WO
Inventors: 廣瀬　政志; 威岩崎
Original assignee: パナソニック株式会社
Priority date: 2011-01-07
Filing date: 2011-12-05
Publication date: 2012-07-12
Also published as: TW201228941A; JP2012143681A

Abstract

A water treatment device comprising a main body for the purification treatment of water supplied from the exterior, and a discharge pipe for discharging to the exterior the water purified in the main body. The main body comprises a water-purifying unit for performing the purification treatment, an addition unit for adding an additive to the purified water treated in the water-purifying unit, and a container-shaped outer shell for housing the water-purifying unit and the addition unit. A recessed part which is recessed from the upper surface and also opened to the rear is provided to the outer shell. The recessed part has a bottom part in a position recessed from the upper surface. A loading port for loading the additive into the addition unit is provided to the bottom part. The main body is provided with a cover for covering the recessed part.

Description

Water treatment equipment

The present invention relates to a water treatment apparatus that purifies raw water such as tap water to generate purified water.

Conventionally, there is a water treatment apparatus including a water purification unit for purifying water and an addition unit for adding an additive to the water treated by the water purification unit (for example, JP-A-2007-83194). See the official gazette). In this case, in order to keep the addition amount of the additive to water at a certain value or more, it is necessary to periodically perform the replenishment work of replenishing the powder or blocky additive into the addition portion from the replenishment inlet of the addition portion. There is.

In the replenishment operation, after the back case, which forms approximately half of the outer surface, of the shell of the main body is removed from the main body, the insertion port is opened to the outside by removing the closing plug that closes the insertion port. Then, after the additive is supplied into the adding section from the opened charging port, the charging port is closed with a blocking plug, and the back case is attached to the main body, and the replenishment operation is completed.

In addition, in the prior art, in addition to providing an inlet on the outer surface of the main body and closing the inlet with a closing plug, removal of the rear case may be omitted.

However, in the conventional case in which the insertion port is covered by the rear case, a working space for removing the rear case from the main body is required at the rear of the water treatment apparatus for removing the rear case. Therefore, if the water treatment device is disposed with the back case in contact with the wall etc., preliminary work such as moving the water treatment device from the wall will be further performed before and after the additive supply operation. Simplification of work is desired. Furthermore, if the water treatment apparatus is disposed with the back case separated from the wall, etc., the work space becomes a dead space while the water treatment apparatus that does not perform the removal operation of the back case is normally available. There is also the problem of being undesirable.

Also, in the case where the closure plug is exposed on the outer surface of the main body, dust, dirt, etc. adhere to the uneven portions of the closure plug due to long-term external exposure, and maintenance such as cleaning of the closure plug becomes complicated. is there. And since the closure plug protrudes outside, there is also a possibility that the closure plug may be damaged by an unexpected contact or the like.

Then, the objective of this invention is providing the water treatment apparatus which simplified the replenishment operation | work of an additive agent by suppressing external exposure of an insertion opening and its periphery.

The water treatment apparatus of the present invention comprises a main body for purifying water supplied from the outside, and a discharge pipe for discharging the water purified by the main body to the outside, and the water purifier for performing the purification treatment by the main body And an addition unit for adding an additive to the purified water treated by the water purification unit, and a container-like outer shell including the water purification unit and the addition unit inside, and the outer shell is recessed from the upper surface and rearward A recess having a bottom open at a position where the recess is recessed from the upper surface, and an insertion port for introducing the additive into the adding portion is provided in the bottom, and the main body Provide a covering cover. With such a configuration, it is possible to suppress the external exposure of the inlet and its surroundings, and simplify the replenishment operation of the additive.

As this water treatment apparatus, it is preferable that the cover is provided with an upper surface portion which is flush with the upper surface of the outer shell when the concave portion is covered.

As this water treatment apparatus, the cover is formed in a U shape as viewed from the up and down direction and a back surface portion covering the opening on the rear side of the recess, extending downward from the lower surface of the upper surface portion It is preferable that an end part is provided with the reinforcement part fixed to the front surface of the back surface part.

As this water treatment apparatus, a pair of ribs are provided on both sides of the reinforcing portion, and the recess is disposed between the pair of ribs on the side surface facing the pair of ribs on each side. It is preferable to have a convex portion in the shape of a circle.

As this water treatment apparatus, ribs are respectively provided on both sides of the reinforcing portion, and the concave portion is disposed between the rib and the side end of the back surface on the side surface facing the rib on each side. It is preferable to have a rail-like convex part.

As this water treatment apparatus, it is preferable that the back surface portion is located inside the opening on the back side, and the cover has a finger hook portion protruding rearward on the top of the back surface portion.

As this water treatment apparatus, it is preferable that the back surface portion is flush with the opening on the back side, and the cover has a finger hook portion which protrudes to the rear from the recess at a lower portion of the back surface portion.

As this water treatment apparatus, the cover is attached to the outer shell so as to be vertically pivoted and attached, and the outer shell abuts against the cover at the time of attaching the cover to form a pivot below the part forming a pivot It is preferable that a projection that protrudes into the recess be provided, and the cover be provided with a locking portion that is fitted to the projection at a position facing the projection.

The preferred embodiments of the present invention will be described in more detail. Other features and advantages of the present invention will be better understood in conjunction with the following detailed description and the accompanying drawings.
It is a side cross-sectional view of the vicinity of the insertion port of the water treatment apparatus of this embodiment. It is a top view of the water treatment apparatus of this embodiment. FIG. 3 is a cross-sectional view taken along line AA of FIG. It is the front view which notched the main body front side of this embodiment. It is a side cross-sectional view around an insertion port of an example which provided the finger hook part of this embodiment. It is a side cross-sectional view of the periphery of the insertion port of another example which provided the finger hook part of this embodiment. It is a perspective view around a crevice of an example which provided a rib in a cover of this embodiment.

Hereinafter, an embodiment of the present invention will be described based on the drawings.

As shown in FIGS. 3 to 4, the water treatment apparatus according to the present embodiment includes a main body 1 for purifying water supplied from the outside and a discharge pipe 3 for discharging the water purified by the main body 1 to the outside of a sink or the like. And have.

The discharge pipe 3 is provided at a flexible hose-like circular pipe member 3a such as a spiral pipe, a connection portion 3b provided at one end of the circular pipe member 3a and connected to the main body 1, and at the other end of the circular pipe member 3a. And an outlet (not shown) for discharging the purified water (purified water) to the outside. And the discharge pipe 3 is rotated with respect to the main body 1 by the connection part 3b.

Further, as shown in FIG. 2, the main body 1 has an oval cylindrical outer shell 2. Assuming that the direction along the axial center of the outer shell 2 is the vertical direction, the lower end of the outer shell 2 contacts the mounting object such as a sink to place the main body 1 on the installation object as shown in FIG. The leg 4 is provided. The upper end of the outer shell 2 is provided with an inclined surface, and the inclined surface extends from one end of the short axis to the other end along the diameter direction on the short side of the ellipse (short axis direction of the ellipse), It is inclined toward the lower end of the cylinder.

In the following description, the short axis direction of the outer shell 2 is taken as the front and back direction, and among the inclined surfaces at the upper end of the outer shell 2, the side closer to the lower end (the lower side of the inclined surface) is taken as the front, and the opposite side (the higher side) Is the rear, and the long diameter direction (long axis direction of the ellipse) is the side.

Further, as shown in FIG. 3, the outer shell 2 of the main body 1 has a front case 2c forming a front half of the circumferential surface, a rear case 2b forming a rear half of the circumferential surface, and a lower portion forming a lower end. It is comprised by case 2d and upper surface case 2a which forms an upper surface. The lower case 2d and the upper case 2a are fixed to the front case 2c, and the rear case 2b is detachably attached to the front case 2c.

Furthermore, the outer shell 2 is provided with a recessed portion 20 which is recessed downward from the upper surface and opened rearward, and the recessed portion 20 has a flat portion 21 and a substantially U-shaped peripheral surface 22 opened rearward. The subject is composed. The circumferential surface 22 of the recess 20 is composed of two opposing side surfaces 22b and an arc-shaped front surface 22a located at the bottom of a U-shape connecting the front ends of the two side surfaces 22b.

In the recess 20, the upper opening edge 20a is formed in the upper surface case 2a, and the rear opening edge 20b, the peripheral surface 22, and the bottom 21 are formed in the back surface case 2b. Furthermore, the concave portion 20 has a circular opening at the bottom portion 21, and the opening is an insertion port 15 for supplying and replenishing the additive when disposing the additive in the adding portion 11. In addition, the detailed description of the addition part 11 grade | etc., Is mentioned later.

Moreover, the cover 30 which covers the recessed part 20 is detachably provided in the outer shell 2, and the cover 30 is formed with flexible resin, and as shown in FIG. There is. The cover 30 is formed in a box shape in which the lower surface is open as a whole, and includes an upper surface portion 31, a back surface portion 32 and a reinforcing portion 33. The upper surface portion 31 has a surface that is substantially flush with the surface of the upper surface case 2 a when the cover 30 covers the recess 20. Further, the back surface portion 32 has a surface that is substantially flush with the surface of the back surface case 2 b when the cover 30 covers the recess 20.

The reinforcing portion 33 is formed in a U-shape as viewed in the vertical direction, extending downward from the lower surface of the upper surface portion 31, and the end portion of the U-shape is fixed to the front surface of the back surface portion 32. Therefore, the reinforcing portion 33 suppresses the bending deformation of the back surface portion 32 to the front side and the bending deformation of the upper surface portion 31 to the lower side, that is, the upper surface portion 31 and the back surface portion 32 are reinforced by the reinforcing portion 33 .

Further, the cover 30 is pivoted in the vertical direction with respect to the outer shell 2 (upper surface case 2a) to be detached, and the front end of the upper surface portion 31 abuts on the upper surface case 2a when the cover 30 is attached. The contact portion is a pivot 40. The upper surface case 2 a is provided with a protrusion 24 projecting rearward at a position below the pivot 40, and the cover 30 is provided with the locking portion 34 at a position forward of the reinforcing portion 33 facing the protrusion 24. Have.

The locking portion 34 has a base 35 projecting downward from the vicinity of the front end of the lower surface of the upper surface portion 31 and a locking projection 36 projecting forward from the lower end of the base 35. A gap is formed between the front and rear direction. Then, when the cover 30 is attached, the base portion 35 is bent backward, and the locking projection 36 rides over the projection 24 and is positioned downward, whereby the locking portion 34 is locked to the projection 24. Therefore, when the cover 30 is attached (attached), the cover 30 is positioned and held by the outer shell 2 by the locking.

Further, as shown in FIG. 4, the main body 1 is treated by a water supply unit 7 to which raw water flows from the outside, a water treatment unit 8 that processes raw water supplied via the water supply unit 7, and a water treatment unit 8 It has the outflow part 12 which makes the said water flow out of the main body 1, and the control part which controls the water treatment part 8 in the inside. And the main body 1 is provided with the operation part 5 operated by the user, and the display part 6 which displays the operation result of the operation part 5 and the operation condition of the water treatment part 8 on the front side of the upper surface.

The water supply unit 7 is mainly configured of a cylindrical water supply hose 7a, one end of the water supply hose 7a is connected to the water treatment unit 8 inside the main body 1, and the other end protrudes outward from the main body 1 The other end is connected to an external water supply source (not shown). Therefore, the water supply hose 7a supplies the raw water to the water treatment unit 8 by the raw water being introduced from the water supply source.

As shown in FIG. 4, the water treatment unit 8 is supplied with raw water from the water supply unit 7 and a water purification unit 9 for purifying the raw water, an electrolysis unit 10 for electrolytically treating the water treated by the water purification unit 9, A part of the water in the part 10 is made to flow, and the addition part 11 which adds an additive to this water is provided.

The water purification unit 9 filters and cleans the raw water, and is internally provided with a water purification cartridge (not shown) for filtration in a detachable manner, and the water purification cartridge filters the activated carbon and the hollow fiber membrane module It has as a material. Then, the water purifier 9 filters the raw water and purifies the raw water by circulating the raw water in the filtration material, and generates purified water (cleaned water). Furthermore, the water purification unit 9 supplies the generated purified water to the electrolysis unit 10. The water purification cartridge may be provided with one of the activated carbon and the hollow fiber membrane module, and the filter medium is not limited to the activated carbon and the hollow fiber membrane module as long as it can filter raw water for purification.

The electrolytic unit 10 includes an electrolytic cell (not shown) into which purified water flows, and two electrode plates (not shown) disposed in the electrolytic cell and charged to a pair of polarities. Then, the purified water in the electrolytic cell is electrolytically treated by charging the pair of electrode plates to generate alkaline ionized water and acidic ionized water, and the respective ionized water is supplied to the outflow portion 12.

The outflow portion 12 is connected to the communication portion 12a that supplies one ionized water (for example, alkaline ionized water) to the discharge pipe 3 through the connection portion 3b, and the other discharge portion (not shown) such as a drainage port. And a drainage portion 12b for discharging ionized water (for example, acidic ionized water). And the drainage part 12b protrudes outward from the main body 1, the protrusion front end faces the external discharge part, and the drainage part 12b is discharging the other ion water to the external discharge part. Therefore, one ionized water supplied to the discharge pipe 3 through the communication part 12a is the purified water taken by the user of the water treatment apparatus.

Further, as shown in FIG. 3, the adding section 11 has a bottomed cylindrical addition cylinder section 13, an agent holder 14 disposed in the addition cylinder section 13 and storing the additive, and the addition cylinder section 13. And a closure plug 16 for closing the open end of the And the addition cylinder part 13 has a communicating hole (not shown) which connects the inside of the cylinder and the inside of the electrolytic cell to the peripheral surface, and a part of the water in the electrolytic cell is for adding through the communicating hole. It flows into the cylindrical portion 13. Furthermore, the addition cylinder portion 13 is provided with an attachment portion 13a detachably fitted with the closing plug 16 on the inner periphery of the upper end.

As shown in FIG. 1, the closing plug 16 has a cylindrical portion 16a inserted into the upper end of the adding cylindrical portion 13, a mounting portion 16b provided on the outer periphery of the cylindrical portion 16a and fitted with the mounting portion 13a, and a cylindrical portion A disk-shaped upper lid portion 16c provided at the upper end of 16a and a knob portion 16d projecting upward from the upper lid portion 16c are provided. A packing 17 is disposed between the outer peripheral surface of the cylindrical portion 16a below the attached portion 16b and the inner peripheral surface of the adding cylinder portion 13, and is sealed in a watertight manner.

Furthermore, the blocking plug 16 is integrally formed with the cylindrical portion 16a, the attached portion 16b, the upper lid portion 16c, and the knob portion 16d, and is attached by fitting the attached portion 16b to the attaching portion 13a. The fitting is, for example, provided with a male screw at the mounting portion 13a, a female screw at the mounting portion 16b, and has a screwing structure using a screw thread. Therefore, the closing plug 16 is attached to and detached from the adding cylinder 13 by rotating the knob 16d about the axial center of the cylinder 16a. The structure to be fitted may be a so-called bayonet structure or the like in which the mounting portion 16b has a plurality of claws and the mounting portion 13a has a stopper for hooking the claws.

The agent holder 14 is mainly composed of a bottomed cylindrical holder portion 14a having a diameter smaller than that of the addition cylinder portion 13, and the holder portion 14a has an annular flange portion 14b at the end on the opening side. Powdered or massive additives (not shown) are stored on the side. The agent holder 14 is disposed substantially concentrically on the inner peripheral side below the attachment portion 13a of the adding cylinder 13 with the end on the opening side facing upward, and substantially the entire outer periphery of the flange portion 14b is added It is in contact with the inner circumferential surface of the cylindrical portion 13.

Furthermore, the agent holder 14 has a water flow portion (not shown) capable of water flow to a part or the whole of the circumferential surface of the cylinder, and the additive in the agent holder 14 is added via the water flow portion The water dissolved in the water in the cylindrical portion 13 and the water in which the additive is dissolved mixes with the water in the electrolytic cell.

The additive stored in the agent holder 14 is, for example, an electrolytic aid such as a calcium preparation that assists the electrolytic treatment of the purified water in the electrolytic unit 10 by dissolving it in the purified water. Therefore, when the additive is dissolved in the purified water in the adding portion 11, the water in the electrolytic cell contains the additive, and the water in the electrolytic cell is easily subjected to the electrolytic treatment with the addition of the additive.

In addition, it is preferable to suppress flowing into an electrolytic cell before melt | dissolution by making a water flow part mesh-like, etc., if a water flow part makes an additive powder form. The shape, number, and the like of the water flow portion may be appropriately set according to the shape, type, and the like of the additive. Furthermore, the additive is not limited to the electrolytic aid.

The opening of the adding cylinder 13 is located at the bottom 21 of the recess 20, the upper lid 16c and the knob 16d of the closure plug 16 are located in the recess 20, and the closure plug 16 covers the cover 30 It is done. Therefore, the closing plug 16 is detached after removing the cover 30 from the recess 20, and the closing plug 16 is detached by inserting a hand into the recess 20.

As described above, the recess 20 covered with the cover 30 smaller than the rear case 2 b is provided at the upper rear of the outer shell 2, and the additive inlet 15 is provided in the recess 20. And since the insertion port 15 is covered with the cover 30, the preliminary work which open | releases the insertion port 15 outside can be performed easily at the time of additive replenishment compared with what removes the back case 2b.

In addition, since the recess 20 is covered with the cover 30, dust, dirt and the like do not easily adhere to the inside of the recess 20, and adhesion of dust and the like to the insertion port 15 and the closing plug 16 can be suppressed. Then, since the surface of the upper surface portion 31 is substantially flush with the upper surface of the outer shell 2, when dust or the like adheres to the upper surface portion 31, dust or the like is easily removed by cleaning the surface of the upper surface portion 31. It can be removed.

Furthermore, by providing the locking portion 34 below the pivot 40, the cover 30 can be held in the recess 20 without being held by a fixing tool such as a screw, and a fixing tool such as a driver or a wrench The cover 30 can be easily attached and detached without using the release tool. Therefore, preliminary work of additive supply can be easily performed.

By the way, even if it makes it easy to apply force to the cover 30 by providing the finger hook part 37 which protrudes back on the back surface part 32 of the cover 30 and putting a finger on the finger hook part 37 and rotating it when removing the cover 30. Good.

As this device, for example, in the device shown in FIG. 5, a finger hooking portion 37 is provided at the lower end of the back surface portion 32 so as to protrude rearward. Therefore, the operator can easily put the cover 30 by hooking the finger on the finger rest 37 or holding the finger rest 37 with fingers even when the operator does not insert a finger or the like between the cover 30 and the bottom 21 when removing the cover 30. It can be turned up and down.

As described above, by providing the finger hooking portion 37 on the back surface portion 32, the removal operation of the cover 30 can be simplified, and the addition operation of the additive can be further simplified. Furthermore, a finger can be made hard to be pinched between the cover 30 and the bottom part 21 at the time of attachment or detachment operation, and the safety of the attachment or detachment operation can be improved.

Then, if a gap that allows gripping the finger hook 37 is secured in the rear of the main body 1 immediately before the refilling operation, the cover 30 can be easily grasped and the cover 30 can be easily removed. When the cover 30 is removed, the amount of moving the water treatment apparatus forward can be reduced. Therefore, it is possible to easily perform the preliminary work that occurs before and after the replenishment work, as compared with the conventional water treatment apparatus in which the back case is removed. Furthermore, even if the water treatment device is disposed after providing a gap that allows gripping the finger hook portion 37 in advance instead of securing a gap immediately before the replenishment operation, compared to the conventional water treatment device, the water treatment device The dead space generated behind the processing device can be reduced.

By the way, as shown in FIG. 1, the back surface portion 32 of the cover 30 of the present embodiment is set to be flush with the back surface case 2b when the recess 20 is covered. However, even when the back surface portion 32 is located on the inner side (front side) from the rear opening of the recessed portion 20 when the recessed portion 20 is covered, even if the back surface portion 32 is not flush with the back surface of the main body 1 (that is, the back surface case 2b) Good. As this thing, for example, in the thing shown in FIG. 6, the finger hook part 37 which protruded back is provided in the upper end of the back surface part 32 which is a junction location of the back surface part 32 and the upper surface part 31. The rear end of the finger hook portion 37 is located forward of the rear surface (rear case 2 b) of the main body 1.

By thus positioning the rear end of the rear surface portion 32 and the rear end of the finger hook portion 37 in front of the rear surface case 2b, even if the rear surface of the main body 1 is disposed in contact with a wall etc. A gap can be secured between the And even if it does not move a water treatment apparatus at the time of a replenishment operation, the finger hooking part 37 can be grasped | ascertained via this clearance gap, and the cover 30 can be removed. Therefore, the preparatory work can be easily performed at the time of replenishment of the additive, and the replenishment work can be simplified, and the dead space behind the main body 1 can be eliminated.

As shown in FIG. 7, ribs 38 extending in the vertical direction may be provided on both sides of the reinforcing portion 33 of the cover 30 with a predetermined gap in front of the side end of the back surface portion 32 (FIG. 7). Then only one side is shown). On the other hand, rail-shaped convex portions 25 may be provided on both side surfaces 22b of the concave portion 20 so as to face the predetermined gaps respectively (only one side is shown in FIG. 7). Then, when the recess 20 is covered, the protrusion 25 is slide inserted into the predetermined gap between the rib 38 and the side end of the back surface 32.

Furthermore, each rib 38 is provided with a claw 39 protruding rearward, and when covering the recess 20, the claw 39 is elastically abutted against the protrusion 25 arranged in the predetermined gap, The front surface of the side end of the portion 32 is in contact with the protrusion 25.

Therefore, the side end of the rib 38 and the back surface portion 32 elastically sandwiches the convex portion 25 when the concave portion 20 is covered, and positions and holds the cover 30 back and forth in the concave portion. In addition, another rib 38 may be provided on each side of the reinforcing portion 33, and a pair of ribs 38 arranged in the front and back direction may form a gap for the convex portion 25 to slide and insert. However, as described above, if the gap between the rib 38 and the side end of the back surface 32 for the slide insertion is formed, the strength of the cover 30 can be improved and the shape of the cover 30 is simplified. The cost of producing the cover 30 can be reduced.

Alternatively, the claws 39 may be provided at the side end of the back surface portion 32 and the back surface of the rib 38 may be in contact with the projection 25 or the like. Of course, the convex portion 25 is not limited to the one extending in the vertical direction, and may be curved in accordance with the movement of the cover 30 at the time of rotation. Then, in the configuration in which the gap between the projections 25 is formed by the pair of ribs 38, the ribs 38 forming the pair are the front rib 38 and the back if they sandwich the projections 25 back and forth. The upper and lower positions of the ribs 38 may be offset from each other.

In addition, the water treatment apparatus is not limited to one that discharges ionized water, but is one that discharges clean water, or one that can selectively discharge ionized water and clean water, at least after water purification processing in the purification unit ( What is necessary is that it can discharge clean water.

Although the present invention has been described with reference to several preferred embodiments, various modifications and variations can be made by those skilled in the art without departing from the true spirit and scope of the present invention, ie, the claims.

Claims

It has a main body for purifying water supplied from the outside, and a discharge pipe for discharging the water purified by the main body to the outside,
The body includes: a water purification unit for performing the purification treatment; an addition unit for adding an additive to the purified water treated by the water purification unit; and a container-like outer shell including the water purification unit and the addition unit therein. Equipped
The outer shell is provided with a recess which is recessed from the upper surface and opened rearward,
The recess has a bottom at a position where it is recessed from the top surface, and an insertion port for introducing the additive into the addition portion is provided in the bottom
A water treatment apparatus characterized in that the main body includes a cover that covers the recess.
The water treatment apparatus according to claim 1, wherein the cover includes an upper surface portion which is flush with the upper surface of the outer shell when covering the concave portion.
The cover is formed in a U-shape as viewed from the up and down direction, and is extended downward from the lower surface of the upper surface, and the end of the U is a back surface. The water treatment apparatus according to claim 2, further comprising: a reinforcing portion fixed to the front surface.
A pair of ribs are provided on both sides of the reinforcing portion, respectively.
The said recessed part is equipped with the rail-shaped convex part arrange | positioned between a pair of said ribs in the side opposite to the said pair of ribs of each side, It is characterized by the above-mentioned. Water treatment equipment.
Ribs are provided on both sides of the reinforcing portion, respectively.
The invention is characterized in that the concave portion has a rail-like convex portion disposed between the rib and the side end of the back surface on a side surface facing the side rib. The water treatment apparatus according to 3.
The rear portion is positioned inside the opening on the rear side,
The water treatment apparatus according to any one of claims 3 to 5, wherein the cover has a finger hook projecting rearward on an upper portion of the back surface.
The rear portion is flush with the rear opening;
The water treatment apparatus according to any one of claims 3 to 5, wherein the cover has a finger hook portion which protrudes rearward from the concave portion at a lower portion of the back surface portion.
The cover is attached to the outer shell so as to be vertically rotated.
The outer shell is provided with a projection projecting into the recess below a portion which abuts on the cover at the time of attachment of the cover to form a pivot.
The water treatment apparatus according to any one of claims 1 to 7, wherein the cover is provided with a locking portion fitted to the protrusion at a position facing the protrusion.