JP2007196077A - Water treatment system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water treatment system capable of connecting a water supply pipe and a water conveyance pipe between a separate switching unit and a treatment unit without erroneous installation. <P>SOLUTION: This system comprises a switching unit 2 mounted on a water faucet 6 which supplies raw water and changing over the raw water to a predetermined water discharge port and a water channel by an internally mounted switching valve 25, a treatment unit 3 separate from the switching unit 2 and carrying out water treatment of the raw water, the water supply pipe 4 for supplying the raw water changed over by the change-over valve 25 of the switching unit 2 to the treatment unit 3, and the water conveyance pipe 5 for conveying treated water treated in the treatment unit 3 to the switching unit 2. The water supply pipe 4 and the water conveyance pipe 5 are formed with different diameters. A water supply pipe connection port 7 and a water conveyance pipe connection port 8 provided on the treatment unit 3 are formed with different diameters. The water supply pipe 4 and the water supply pipe connection port 7 are connected whose diameters are consistent with each other. The water conveyance pipe 5 and the water conveyance pipe connection port 8 are connected whose diameters are consistent with each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a water treatment apparatus.

  Conventionally, as shown in FIGS. 9 and 10, the water treatment apparatus 1 includes a switching unit 2 that switches raw water to a predetermined outlet or water channel by a switching valve 25 that is attached to the faucet 6 that supplies raw water and is internally provided. In addition, a configuration is known that includes a processing unit 3 that performs a raw water treatment separately from the switching unit 2 (see, for example, Patent Document 1). Specifically, in the water treatment apparatus 1 of FIG. 9, the raw water from the faucet 6 reaches the treatment unit 3 via the switching unit 2, and the treatment water spout 29 provided in the treatment unit 3 is treated water generated by the treatment unit 3. The water is discharged from. That is, a water supply pipe 4 for supplying raw water from the switching unit 2 to the processing unit 3 is connected between the switching unit 2 and the processing unit 3. On the other hand, in the water treatment apparatus 1 of FIG. 10, the raw water from the faucet 6 reaches the treatment unit 3 via the switching unit 2, and the treated water generated by the treatment unit 3 is returned to the switching unit 2 and provided in the switching unit 2. Water is discharged from the treated water outlet 29. In other words, between the switching unit 2 and the processing unit 3, in order to send raw water to the switching unit 2, the water supply pipe 4 for supplying raw water from the switching unit 2 to the processing unit 3, and the processing water treated by the processing unit 3. Are connected to each other.

By the way, the water treatment apparatus 1 in which the switching unit 2 and the treatment unit 3 as described above are separated from each other with respect to the switching unit 2 attached to the faucet 6, the treatment unit 3 is a counter or wall surface such as a kitchen or a wash basin. Etc., that is, the distance between the switching unit 2 and the treatment unit 3 is different depending on the installation location of the water treatment apparatus 1, so that the water supply pipe 4 and the water supply pipe 5 having appropriate lengths are provided. Construction to connect to the switching unit 2 and the treatment unit 3 is performed at the installation site of the water treatment device 1. And about connection construction to the switching unit 2 and the processing unit 3 of this water supply pipe 4 or the water supply pipe 5, in the former water treatment apparatus 1 of FIG. 9, it connects with the switching unit 2 and the processing unit 3. Since there is only one water supply pipe 4, it is sufficient to connect both ends of the water supply pipe 4 to each water supply pipe connection port 7 provided in the switching unit 2 or the processing unit 3, but there is no room for error in construction. In the water treatment apparatus 1 of FIG. 10, the two units of the water supply pipe 4 and the water supply pipe 5 are connected to the switching unit 2 and the treatment unit 3, and these two pipes are the switching unit 2. Or the water supply pipe connection port and the water supply pipe connection port provided in the processing unit 3 are appropriately connected. In this case, for example, the water supply pipe 4 appropriately connected to the processing unit 3 is connected to the switching unit 2. If it is accidentally connected to the water pipe connection port There is a possibility that the water supply pipe 5 appropriately connected to the treatment unit 3 may be mistakenly connected to the water supply pipe connection port of the switching unit 2. In this case, the water treatment apparatus 1 is not expected to operate normally, and the water treatment apparatus There was also a risk of causing one failure.
JP 2001-252647 A

  The present invention has been made in view of the above-described conventional problems, and provides a water treatment apparatus that can connect a water supply pipe and a water supply pipe between a separate switching unit and a treatment unit without making a mistake in construction. It is an object to do.

  In order to solve the above-mentioned problem, the water treatment apparatus according to claim 1 of the present invention includes a switching unit 2 that switches raw water to a predetermined outlet or water channel by a switching valve 25 that is attached to and built in a faucet 6 that supplies raw water. And a processing unit 3 for treating the raw water separately from the switching unit 2, a water supply pipe 4 for supplying raw water switched by the switching valve 25 of the switching unit 2 to the processing unit 3, and a processing unit. The water supply pipe 5 for supplying the treated water treated in 3 to the switching unit 2 is formed with different diameters of the water supply pipe 4 and the water supply pipe 5, and the water supply pipe connection provided in the processing unit 3 is provided. The diameters of the port 7 and the water pipe connection port 8 are formed to be different from each other, and the water pipe 4 and the water pipe connection port 7 having the same diameter are connected to each other, and the water pipe 5 and the water pipe connection port 8 having the same diameter are connected to each other. Is connected. According to this, the water supply pipe 4 and the water supply pipe 5 are formed with different diameters, and the water supply pipe connection port 7 and the water supply pipe connection port 8 provided in the processing unit 3 are formed with different diameters. Since the water supply pipe 4 and the water supply pipe connection port 7 to be connected are connected, and the water supply pipe 5 and the water supply pipe connection port 8 having the same diameter are connected, that is, the pipes having the same diameter and the pipe connection port are to be connected. Therefore, the water supply pipe 4 and the water supply pipe 5 can be connected to the water supply pipe connection port 7 and the water supply pipe connection port 8 without mistakes in construction.

  Moreover, the water treatment apparatus according to claim 2 is the water treatment apparatus according to claim 1, wherein the water supply pipe connection port 7 and the water supply pipe connection port 8 are arranged side by side on the side surface of the treatment unit 3 and have the same diameter as the outer diameter of the water supply pipe 4. It has a pipe attachment member 9 in which a water supply pipe insertion hole 10 and a water supply pipe insertion hole 11 having the same diameter as the outer diameter of the water supply pipe 5 are formed, and this pipe attachment member 9 is the end of the water supply pipe 4 and the water supply pipe 5. The water supply pipe 4 is inserted through the water supply pipe connection port 7 and the water supply pipe 5 is inserted through the water supply pipe connection port 8 and attached. A pipe attachment member 9 is attached to the side surface of the switching unit 2, and the water supply pipe 4 is connected to the water supply pipe connection port. 7 and the positioning part 12 and the to-be-positioned part 13 that coincide with each other when the pipe mounting member 9 is located at a predetermined mounting position on the side surface of the switching unit 2 connected to the water pipe connecting port 8. It is provided on the side surface of the unit 2 and the pipe mounting member 9. According to this, the water supply pipe having the same diameter as the outer diameter of the water supply pipe 4 even in a situation where a construction error is likely to occur in which the water supply pipe connection port 7 and the water supply pipe connection port 8 are arranged in parallel on the side surface of the processing unit 3. The pipe mounting member 9 formed with the insertion hole 10 and the water supply pipe insertion hole 11 having the same diameter as the outer diameter of the water supply pipe 5 allows the water supply pipe 4 to be inserted into the water supply pipe connection port 7 and the water supply pipe 5 to be connected to the water supply pipe connection port. 8 can be appropriately attached to the ends of the water supply pipe 4 and the water supply pipe 5, and the water supply pipe 4 is connected to the water supply pipe connection port 7 and the water supply pipe 5 is connected to the water supply pipe. A positioning portion 12 and a positioned portion 13 that match when the tube mounting member 9 is positioned at a predetermined mounting position on the side surface of the switching unit 2 connected to the port 8 are provided on the side surface of the switching unit 2 and the tube mounting member 9. Therefore, it was appropriately attached to the ends of the water supply pipe 4 and the water supply pipe 5. By attaching the attachment member 9 to the side surface of the switching unit 2 with the positioning portion 12 and the positioned portion 13 matched, the water supply pipe 4 is securely connected to the water supply pipe connection port 7 and the water supply pipe 5 is connected to the water supply pipe. In other words, the water supply pipe 4 and the water supply pipe 5 can be connected to the water supply pipe connection port 7 and the water supply pipe connection port 8 without any mistake in construction.

  The water treatment device according to claim 3 is the water treatment device according to claim 1, wherein the water supply pipe connection port 7 and the water supply pipe connection port 8 are arranged side by side on the side surface of the treatment unit 3, and have the same diameter as the outer diameter of the water supply pipe 4. It has a pipe attachment member 9 in which a water supply pipe insertion hole 10 and a water supply pipe insertion hole 11 having the same diameter as the outer diameter of the water supply pipe 5 are formed, and this pipe attachment member 9 is the end of the water supply pipe 4 and the water supply pipe 5. The water supply pipe 4 is inserted into the water supply pipe connection port 7 and the water supply pipe 5 is inserted into the water supply pipe connection port 8 and attached. The water supply pipe 4 is connected to the water supply pipe connection port 7 and the water supply pipe 5 is connected to the water supply pipe connection port. A blocking portion 14 that blocks the tube mounting member 9 from coming into contact with the side surface of the switching unit 2 when the tube mounting member 9 is not positioned at a predetermined mounting position on the side surface of the switching unit 2 connected to The portion 15 is provided on the side surface of the switching unit 2 and the pipe mounting member 9. According to this, the water supply pipe having the same diameter as the outer diameter of the water supply pipe 4 even in a situation where a construction error is likely to occur in which the water supply pipe connection port 7 and the water supply pipe connection port 8 are arranged in parallel on the side surface of the processing unit 3. The pipe mounting member 9 formed with the insertion hole 10 and the water supply pipe insertion hole 11 having the same diameter as the outer diameter of the water supply pipe 5 allows the water supply pipe 4 to be inserted into the water supply pipe connection port 7 and the water supply pipe 5 to be connected to the water supply pipe connection port. 8 can be appropriately attached to the ends of the water supply pipe 4 and the water supply pipe 5, and the water supply pipe 4 is connected to the water supply pipe connection port 7 and the water supply pipe 5 is connected to the water supply pipe. A blocking portion 14 that is in contact with the side surface of the switching unit 2 when the tube mounting member 9 is not located at a predetermined mounting position on the side surface of the switching unit 2 connected to the port 8 and that is blocked. Since the blocking portion 15 is provided on the side surface of the switching unit 2 and the pipe mounting member 9, When attaching the pipe attachment member 9 appropriately attached to the ends of the water supply pipe 4 and the water supply pipe 5 to the side surface of the switching unit 2, the pipe attachment member 9 is attached to the side surface of the switching unit 2 in an incorrect positional relationship. In this case, since the blocking portion 14 and the blocked portion 15 come into contact with each other and the pipe mounting member 9 is blocked from being attached to the side surface of the switching unit 2, the pipe mounting member 9 is switched to the installer. It can be led to the side of the unit 2 so that the water supply pipe 4 is connected to the water supply pipe connection port 7 and the water supply pipe 5 is attached at the correct position where it is connected to the water supply pipe connection port 8. The water supply pipe 5 can be connected to the water supply pipe connection port 7 and the water supply pipe connection port 8 without mistakes in construction.

  The water treatment apparatus according to claim 4 is the water treatment apparatus according to claim 1 or 2, wherein the water supply pipe connection port 7 and the water supply pipe connection port 8 are each formed in a cylindrical shape protruding outward from the side surface of the switching unit 2, The cylindrical water supply pipe connection port 7 and the water supply pipe connection port 8 are each formed with a tapered portion 16 having a smaller diameter toward the tip, and the cylindrical shape surrounding the water supply pipe connection port 7 and the water supply pipe connection port 8 on the side surface of the switching unit 2. The peripheral wall 17 is provided, a male screw 18 is engraved on the outer peripheral surface of the peripheral wall 17, and a tubular cap member 19 attached to the ends of the water supply pipe 4 and the water supply pipe 5 and a cylindrical cap member 19 are provided on the peripheral wall 17. The female screw 20 that is placed on the cap member 19 and is engraved on the inner peripheral surface of the cap member 19 is screwed into the male screw 18 of the peripheral wall 17, and the contact portion 21 provided on the cap member 19 is provided on the pipe mounting member 9. Abutting on the abutting portion 22 toward the switching unit 2, the water supply pipe connection port 7 and the water supply pipe The water supply pipe 4 and the water supply pipe 5 that are externally fitted to the tapered portion 16 of the connection port 8 are pressed by the inner surfaces 10a and 11a of the water supply pipe insertion hole 10 and the water supply pipe insertion hole 11 of the pipe mounting member 9, respectively. . According to this, the water supply pipe 4 and the water supply pipe 5 are connected to the water supply pipe 4 and the water supply pipe 5 by using the pipe mounting member 9 for connecting the water supply pipe 4 and the water supply pipe 5 to the water supply pipe connection port 7 and the water supply pipe connection port 8 without error. It is possible to make a strong and watertight connection to the port 7 and the water pipe connection port 8, that is, the connection structure of the water supply pipe 4 and the water pipe 5 to the water supply pipe connection port 7 and the water pipe connection port 8. The configuration can be simplified.

  The present invention has an advantage that the water supply pipe and the water supply pipe can be connected to the water supply pipe connection port and the water supply pipe connection port without any mistake in construction.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  As shown in FIG. 2, the water treatment apparatus 1 of the present example includes a switching unit 2 that switches raw water to a predetermined water outlet or water channel by a switching valve 25 that is attached to a faucet 6 that supplies raw water, and the switching unit. 2 is connected to the treatment unit 3 having a water treatment unit for treating the raw water separately and to supply the raw water switched by the switching valve 25 to the treatment unit 3. The water supply pipe 4 and the water supply pipe 5 connected to the switching unit 2 and the processing unit 3 in order to send the treated water processed by the processing unit 3 to the switching unit 2 are configured. The water supply pipe 4 and the water supply pipe 5 are constituted by flexible flexible hoses, and the switching unit 2 and the separate processing unit 3 can be appropriately disposed at arbitrary positions on the kitchen wall or flange. Has been. In the water treatment apparatus 1 of this example, as shown in FIG. 2 (b), the raw water straight mode (arrow A → B) in which raw water is discharged straight from the straight water discharge port 28a provided in the switching unit 2, FIG. 2 (c). The raw water shower mode (arrow A → C) in which the raw water is discharged in the form of a shower from the shower spout 28b provided in the switching unit 2 as shown in FIG. 2, and the raw water is supplied to the water supply pipe 4 by the switching unit 2 as shown in FIG. The treated water mode (arrows A → D → E →) for discharging the treated water generated in the treated unit 3 from the treated water spout 29 provided in the switching unit 2 via the water pipe 5. F → G → H → I → J).

  The switching unit 2 incorporates an internal member 24 provided with a switching valve 25 in a case 23 formed by joining an upper case 23a and a lower case 23b which are divided vertically as shown in FIGS. An operation lever 26 for operating the valve body 25b of the valve 25 is attached. The switching unit 2 has a flat and thin outer shape, a faucet connection port 27 to which the faucet 6 is connected is provided on the top surface, and a raw water spout port 28 and a treated water spout port 29 are provided on the bottom surface. . In this example, a straight water outlet 28 a and a shower water outlet 28 b are provided as the raw water outlet 28. For convenience, when the arrow a on the horizontal plane is the front, the arrow b is the rear, the arrow c is the left, and the arrow d is the right, the rear surface of the case 23 of the switching unit 2 has a water supply pipe 4 A water supply pipe connection port 7 and a water supply pipe connection port 8 to which the water pipe 5 is connected are provided, and an operation lever 26 is provided along the left and right surfaces and the front surface of the side surface of the case 23 of the switching unit 2. .

  The internal member 24 is integrally formed with a switching valve 25 and various water channels. The switching valve 25 includes a valve chamber 25a formed in a free-bottomed cylinder shape that is laid down substantially horizontally, and a valve body 25b that is disposed in the valve chamber 25a so as to be rotatable about a substantially horizontal axis. Is done. The various water channels include a straight water discharge channel 30 from the valve chamber 25a to the straight water discharge port 28a, a shower water discharge channel 31 from the valve chamber 25a to the shower water discharge port 28b, and a process from the valve chamber 25a to the water supply pipe connection port 7. A unit water channel 32 and a treated water discharge channel 33 from the water pipe connection port 8 to the treated water discharge port 29 are provided. The valve chamber 25a is communicated with a faucet connection port 27 for connecting the faucet 6, and by rotating the valve body 25b in the valve chamber 25a, the rotational position of the valve body 25b in the valve chamber 25a is changed. The inlets of the water channels 30, 31, 32 that open into the valve chamber 25a are appropriately opened and closed so that the raw water from the water tap 6 flows toward the selected water channels 30, 31, 32. Here, the treated water discharge waterway 33 is arranged so as to overlap the upper position of the treatment unit waterway 32, and any of the above waterways is arranged so as to go around from the rear side of the switching valve 25 to the left side. It is formed in an L-shaped tube. In addition, a vertical tubular rectification part 34 that extends up and down of the switching unit 2 is formed in the downstream part of the water channel 33 for the treated water discharge, and reaches the treated water discharge port 29. A rectifying fin 34a for rectifying the treated water is formed (FIG. 5). Further, since the treated water discharge waterway 33 is arranged to overlap the upper position of the treatment unit waterway 32, the water supply pipe connection port 8 is arranged above the water supply pipe connection port 7 on the rear surface of the switching unit 2. Has been placed. Note that the bottom-bottomed cylindrical valve chamber 25a laid down substantially horizontally opens its cylinder opening to the right of the switching unit 2, and the valve body 25b disposed in the valve chamber 25a has one end of the valve chamber 25a. It protrudes out of the valve chamber 25a from the tube opening. At one end of the valve body 25b protruding outside the valve chamber 25a, a connecting shaft portion 35 connected to the connecting bearing portion 38 of the operation lever 26 is formed. Specifically, the connecting shaft portion 35 is formed in a shaft shape having a substantially D-shaped cross section.

  The operation lever 26 is a U-shaped member having leg pieces 26b projecting from both ends of a rod-shaped gripping portion 26a. The operation lever 26 has the leg pieces 26b along the left and right sides of the switching unit 2 and the side surfaces of the switching unit 2. Is attached to the switching unit 2 so that the gripping portion 26a is along the front surface. Specifically, a pair of left and right leg pieces 26b of the operating lever 26 are provided with pivot portions 37 that are pivotally supported in a freely and detachable manner on bearing portions 36 provided on the side surfaces (left surface and right surface) of the switching unit 2 facing each other. The right leg piece 26b is formed with a connecting bearing portion 38 having a D-shaped cross section connected to the connecting shaft portion 35 of the valve body 25b in addition to the pivot portion 37. In other words, the operation lever 26 is configured such that the pivot portions 37 of the leg pieces 26b are pivotally supported on the bearing portions 36 on the side surfaces (left surface and right surface) of the switching unit 2, respectively. Is pivotable in the vertical direction, and the connecting bearing portion 38 is coupled to the connecting shaft portion 35 of the valve body 25b, so that the switching valve 25 can be moved in accordance with the vertical rotation operation of the grip portion 26a. The rotational position of the valve body 25b is changed so that the raw water can be switched to a predetermined flow path (30, 31, 32).

  As shown in FIGS. 6 and 7, the treatment unit 3 is a purified water generation unit 40 that filters raw water to obtain purified water, and electrolyzed water generation that obtains electrolyzed water having alkaline or acidic water quality by electrolyzing the water. It is possible to generate treated water that has been subjected to water purification treatment or electrolytic treatment on the raw water supplied through the water supply pipe 4a.

  Specifically, the processing unit 3 has a flat box-shaped housing 39 whose depth is shorter than the width and height, and the water supply pipe 4 connected to the processing unit 3 is connected to the water supply pipe in the housing 39. 5, and the purified water generation unit 40 and the electrolyzed water generation unit 41 are arranged in this order from the upstream side. Here, the water purification unit 40 is constituted by a water purification cartridge provided with a filter medium such as activated carbon or a hollow fiber membrane, and this water purification cartridge can be replaced from the rear surface of the housing 39. The electrolyzed water generating unit 41 includes two types of electrodes 44 and 45 inside the electrolytic cell 43 and an electrolytic diaphragm 43a that partitions both of them. That is, in the electrolytic cell 43, a space on the electrode 44 side (hereinafter referred to as a main chamber 46) and a space on the electrode 45 side (hereinafter referred to as a sub chamber 47) formed by the electrolytic diaphragm 43a are formed. The electrodes 44 and 45 are supplied with power through a control unit 48 built in the housing 39.

  A flow sensor 49 is provided in the internal flow path 42 downstream of the water purification unit 40, the internal flow path 42 downstream of the flow sensor 49 is branched into two, and one branch flow path 50 is connected to the electrolytic cell 43. The other branch channel 51 reaches the sub chamber 47 of the electrolytic cell 43 through the electrolyte addition cylinder 52. The flow rate sensor 49 is connected to the control unit 48, and energization of the electrodes 44 and 45 by the control unit 48 is appropriately performed so as to obtain electrolyzed water having a predetermined ph value based on the flow rate information obtained from the flow rate sensor 49. To be done. The electrolyte addition cylinder 52 plays a role of improving the electrolysis efficiency of the water in the electrolytic cell 43 by supplying the electrolyte to the water reaching the electrolytic cell 43 and is replaceable from the rear surface of the housing 39 in a cartridge type. Has been. The electrolyte addition cylinder 52 of this example is composed of a calcium addition cylinder and plays a role of dissolving useful components in the electrolytic water in addition to the role of improving the electrolysis efficiency of water in the electrolytic bath 43. An internal flow path 42 through which the electrolyzed water generated in the electrolyzer 43 is passed from the main chamber 46 is provided to reach the water pipe 5, and the secondary chamber 47 generates secondary water generated when electrolyzed water is generated in the electrolyzer 43. A drainage channel 53 for discharging typical electrolyzed water is provided. In this example, the one branch channel 50 is further branched before reaching the main chamber 46 of the electrolytic cell 43, one reaches the main chamber 46 of the electrolytic cell 43, and the other passes through the throttle 54 and the drain channel 53. Has reached. The throttle 54 adjusts the amount of water flowing through the one and the other branch channels 50, 51. Specifically, the flow rate of the one branch channel 50 reaching the main chamber 46 is adjusted to the other chamber reaching the sub chamber 47. It plays a role of reducing compared to the flow rate of the branch flow path 51. The inlet 42 a and the outlet 42 b of the internal channel 42 are provided on the bottom surface of the housing 39, and the drain channel 53 extends the discharge hose 55 from the bottom surface of the housing 39 to provide the outlet 53 a outside the housing 39. In the figure, reference numeral 56 denotes a power supply line extended from the control unit 48.

  The control unit 48 can be operated by an operation unit 57 disposed along an R portion 39 a formed between the front surface and the upper surface of the housing 39. Here, when the user operates the operation unit 57 so that the treated water generated in the treatment unit 3 is alkali ion water, the control unit 48 causes the electrode 44 of the main chamber 46 to be the cathode and the sub chamber 47 to An electrolytic voltage is applied so that the electrode 45 becomes an anode, alkaline ionized water flows through the internal flow path 42, and acidic ionized water flows through the drainage flow path 53. On the other hand, when the user operates the operation unit 57 so that the treated water generated in the treatment unit 3 is acidic ion water, the control unit 48 causes the electrode 44 of the main chamber 46 to be the anode and the electrode of the sub chamber 47 to be the electrode. Electrolytic voltage is applied so that 45 becomes a cathode, acidic ion water flows through the internal flow path 42, and alkaline ion water flows through the drain flow path 53. When the user operates the operation unit 57 so that the treated water generated in the treatment unit 3 is purified water that only removes dust and the like without changing the ph value, the control unit 48 causes the electrodes 44, The application of the electrolytic voltage to 45 is not performed, and the purified water generated by the purified water generation unit 40 passes through the electrolytic tank 43 as it is and flows into the internal flow path 42.

  The switching unit 2 and the processing unit 3 are connected by a water supply pipe 4 and a water supply pipe 5. Specifically, the inlet 4 a of the water supply pipe 4 is connected to the water supply pipe connection port 7, and the outlet 4 b is connected to the inlet 42 a of the internal flow path 42 of the processing unit 3. Further, the inlet 5 a of the water pipe 5 is connected to the outlet 42 b of the internal flow path 42 of the processing unit 3, and the outlet 5 b is connected to the water pipe connection port 8. The water supply pipe 4 and the water supply pipe 5 of this example are composed of a flexible hose having a flexible structure except for both ends separated in a bifurcated shape. The port 7 and the water pipe connection port 8 are connected to the inlet 42 a and the outlet 42 b of the internal flow path 42.

  By the way, in this example, it has the feature that it devised to make the connection to the water supply pipe connection port 7 and the water supply pipe connection port 8 of the water supply pipe 4 and the water supply pipe 5 not to make a mistake. Detailed description.

  The water supply pipe 4 and the water supply pipe 5 of this example are formed with different diameters. Further, the water supply pipe connection port 7 and the water supply pipe connection port 8 provided in the processing unit 3 are also formed with different diameters. The water supply pipe 4 and the water supply pipe connection port 7 having the same diameter are connected to each other, and the water supply pipe 5 and the water supply pipe connection port 8 having the same diameter are connected to each other. Specifically, since the processing unit 3 has a structure in which a part of the supplied raw water is drained from the drainage channel 53 as described above, the water supply pipe 4 and the water supply pipe connection port 7 have a large diameter. The water pipe 5 and the water pipe connection port 8 are formed with a small diameter. The water supply pipe 4 and the water supply pipe 5 are externally fitted and connected to the water supply pipe connection port 7 and the water supply pipe connection port 8 formed in a cylindrical shape. That is, since it cannot connect even if it tries to connect the water pipe 5 with a small diameter to the water pipe connection port 7 with a large diameter, the water pipe 4 and the water pipe 5 are connected to the water pipe connection port 7 and the water pipe connection port 8. There is no mistake in the connection.

  It is also preferable to appeal to the sight of the installer so that there is no mistake in the connection of the water supply pipe 4 and the water supply pipe 5 to the water supply pipe connection port 7 and the water supply pipe connection port 8. For example, the inner pipe surface of the water supply pipe 4 and the inner pipe surface of the water supply pipe connection port 7 are made the same color, and the inner pipe surface of the water supply pipe 5 and the inner pipe surface of the water supply pipe connection port 8 are connected to the water supply pipe 4. The same color can be obtained by using a color different from the color of the inner tube surface. According to this, while maintaining the good external appearance of the water treatment apparatus 1 without changing the external appearance of the water supply pipe 4 and the water supply pipe 5, the water supply of the water supply pipe 4 and the water supply pipe 5 is appealed to the sight of the installer. It is possible to prevent an error from occurring in the connection to the pipe connection port 7 and the water pipe connection port 8.

  Specifically, as shown in FIG. 5, the water supply pipe connection port 7 and the water supply pipe connection port 8 of this example are formed in a cylindrical shape protruding rearward from the rear surface of the switching unit 2, and this cylindrical water supply pipe connection port 7. Each of the water pipe connection ports 8 is provided with a taper portion 16 whose outer diameter becomes narrower toward the rear. A cylindrical peripheral wall 17 is formed on the rear surface of the switching unit 2 so as to surround the periphery of the water supply pipe connection port 7 and the water supply pipe connection port 8. A male screw 18 is engraved on the outer peripheral surface of the peripheral wall 17. Yes. The water supply pipe connection port 7 and the water supply pipe connection port 8 are formed so as to protrude rearward from the peripheral wall 17. Moreover, the pipe attachment member 9 is attached to the edge part of the water supply pipe 4 and the water supply pipe 5 of the side connected to the water supply pipe connection port 7 and the water supply pipe connection port 8 as shown in FIG. The pipe attachment member 9 is formed in a free-bottomed cylindrical shape, and a water supply pipe insertion hole 10 having the same diameter as the outer diameter of the water supply pipe 4 and a water supply pipe insertion hole 11 having the same diameter as the outer diameter of the water supply pipe 5 are formed in the bottom surface of the tube. Has been. The pipe attachment member 9 is attached to the ends of the water supply pipe 4 and the water supply pipe 5 by inserting the water supply pipe 4 through the water supply pipe insertion hole 10 and inserting the water supply pipe 5 through the water supply pipe insertion hole 11. The water supply pipe 4 and the water supply pipe 5 are externally fitted in a state where they are forcibly fitted to the respective tapered portions 16 of the water supply pipe connection port 7 and the water supply pipe connection port 8 from the rear of the switching unit 2, and a cap member 19 is attached to the peripheral wall 17. Thus, it is firmly and watertightly connected through the tube mounting member 9.

  Here, the cap member 19 is formed in a cylindrical shape, and a female screw 20 is engraved on the inner peripheral surface in the vicinity of one of the cylindrical openings, and a flange-shaped contact projecting inwardly on the other cylindrical opening. The part 21 is provided over the circumferential direction. The cap member 19 has a pipe mounting member 9 attached to the ends of the water supply pipe 4 and the water supply pipe 5 positioned inside the cylinder, and the female screw 20 on the inner peripheral surface is screwed into the male screw 18 on the peripheral wall 17. Thus, the peripheral wall 17 and the pipe attachment member 9 are attached to the switching unit 2 from the rear so as to cover the outside. By rotating the cap member 19 and screwing the female screw 20 on the inner peripheral surface into the male screw 18 of the peripheral wall 17, the cap member 19 approaches the switching unit 2. The abutting portion 21 of 19 abuts on the outer edge portion of the bottom surface of the tube mounting member 9 that becomes the abutted portion 22, and the tube mounting member 9 also approaches the switching unit 2 along with the cap member 19. When the pipe attachment member 9 approaches the switching unit 2, the inner surface 10 a, 11 a of the water supply pipe insertion hole 10 or the water supply pipe insertion hole 11 of the pipe attachment member 9 is connected to the water supply pipe connection port 7 or the water supply pipe connection port 8. The water supply pipe 4 and the water supply pipe 5 that are externally fitted in a state of being forcedly fitted to each taper portion 16 are pressed from the outside, that is, as shown in FIG. 1, the water supply pipe 4 and the water supply pipe 5 are pressed. Is sandwiched between the inner surface 10a, 11a of each of the water supply pipe insertion hole 10 and the water supply pipe insertion hole 11 of the pipe attachment member 9 and each tapered portion 16 of the water supply pipe connection port 7 and the water supply pipe connection port 8. The main connection is made to the water supply pipe connection port 7 and the water supply pipe connection port 8 in a strong and watertight manner.

  As described above, in the previous stage of the main connection to the water supply pipe connection port 7 and the water supply pipe connection port 8 of the water supply pipe 4 and the water supply pipe 5 using the cap member 19 and the pipe attachment member 9, as shown in FIG. Thus, the water supply pipe 4 and the water supply pipe 5 with the pipe attachment member 9 attached are externally fitted and temporarily connected to the water supply pipe connection port 7 and the water supply pipe connection port 8, but in this example, the pipe attachment member 9 is devised so as not to make a mistake in the temporary connection of the water supply pipe 4 or the water supply pipe 5 to the water supply pipe connection port 7 or the water supply pipe connection port 8. That is, a fitting protrusion 58 that protrudes rearward is formed inside the peripheral wall 17 of the switching unit 2, and a fitting hole 59 in which the protrusion 58 is fitted inside the tube of the tube mounting member 9 is formed. In this example, a pair of fitting protrusions 58 are provided at symmetrical positions that are orthogonal to the line connecting the water supply pipe connection port 7 and the water supply pipe connection port 8. Of the pair of fitting protrusions 58, one fitting protrusion 58 is constituted by a rectangular block-like block protrusion 58a, and the other fitting protrusion 58 is disposed in parallel with a gap therebetween. It consists of rod-shaped protrusions 58b and 58b. A pair of fitting hole portions 59 are also provided in the tube attachment member 9 corresponding to each fitting protrusion 58. One fitting hole 59 of the pair of fitting holes 59 is configured by a single hole 59a into which the fitting protrusion 58 of the block-shaped protrusion 58a is fitted, and the other fitting hole 59 is a pair of fitting holes 59a. The rod-shaped protrusions 58b, 58b are formed by parallel holes 59b with a partition wall 59c between the fittings. The fitting projection 58 and the fitting hole 59 are connected to the rear surface of the switching unit 2 in a predetermined state (the water supply pipe 4 and the water supply pipe 5 are connected to the water supply pipe connection port 7 and the water supply pipe connection port 8. It can be fitted when close to each other.

  When the water supply pipe 4 or the water supply pipe 5 is temporarily connected to the water supply pipe connection port 7 or the water supply pipe connection port 8, the pipe mounting member 9 attached to the end of the water supply pipe 4 or the water supply pipe 5 is connected to the water supply pipe 4 or the water supply pipe. The water pipe 5 is brought close to the switching unit 2. At this time, by fitting the fitting projection 58 and the fitting hole 59, the pipe mounting member 9 is attached to the switching unit 2 in a predetermined manner. The water supply pipe 4 and the water supply pipe 5 can be close to each other in a state where the water supply pipe 4 and the water supply pipe 5 can be connected to the water supply pipe connection port 7 and the water supply pipe connection port 8, that is, the water supply pipe 4 and the water supply pipe 5 are connected to the water supply pipe connection port 7 and the water supply pipe. Since it can be positioned corresponding to the port 8, the provisional connection of the water supply pipe 4 or the water supply pipe 5 to the water supply pipe connection port 7 or the water supply pipe connection port 8 does not cause an error. In other words, the fitting protrusion 58 and the fitting hole 59 are provided on the rear surface of the switching unit 2 where the water supply pipe 4 is connected to the water supply pipe connection port 7 and the water supply pipe 5 is connected to the water supply pipe connection port 8. The positioning portion 12 and the positioned portion 13 that coincide with each other when the pipe mounting member 9 is positioned at the mounting position are configured with respect to the rear surface of the switching unit 2 having the water supply pipe connection port 7 and the water supply pipe connection port 8. Thus, the pipe attachment member 9 attached in a predetermined state to the water supply pipe 4 and the water supply pipe 5 can be positioned and arranged, that is, the water supply pipe 4 is connected to the water supply pipe connection port 7 and the water supply pipe 5 is connected to the water supply pipe. Since each can be located at a predetermined connection position to the port 8, no error occurs in the temporary connection of the water supply pipe 4 or the water supply pipe 5 to the water supply pipe connection port 7 or the water supply pipe connection port 8. It is.

  Furthermore, in this example, the water supply pipe connection port 8 is located at the upper position and the water supply pipe connection port 7 is located at the lower position, and they are arranged adjacently in the vertical direction. Specifically, when trying to connect the water supply pipe 4 or the water supply pipe 5 to the water supply pipe connection port 7 or the water supply pipe connection port 8 by mistake, the water supply pipe 4 is set to the upper position and the water supply pipe 5 is set to the lower position. This is the case where the pipe connection port 7 and the water pipe connection port 8 are brought close to each other. At this time, since the pipe attachment member 9 attached to the water supply pipe 4 or the water supply pipe 5 is turned upside down, the pair of fitting hole portions 59 of the pipe attachment member 9 is one fitting formed by a single hole 59a. The joint hole 59 is close to the other fitting protrusion 58 formed by a pair of rod-shaped protrusions 58b and 58b, and the other fitting hole 59 formed by the side-by-side hole 59b is a block-shaped protrusion 58a. It comes close to the one fitting protrusion 58 comprised. At this time, at least one fitting protrusion 58 that is the block-shaped protrusion 58a comes into contact with the partition wall 59c between the parallel holes 59b that is the other fitting hole 59. Proximity of the tube mounting member 9 located at the rear surface of the switching unit 2 is prevented.

  As described above, when the fitting protrusion 58 is prevented from fitting into the other fitting hole 59 by the partition wall 59c, the builder constructs the water supply pipe 4 or the water supply pipe to which the pipe attachment member 9 is attached. 5 is in the wrong position with respect to the water supply pipe connection port 7 and the water supply pipe connection port 8, the position of the water supply pipe 4 and the water supply pipe 5 is turned upside down and the water supply pipe connection port 7 and the water supply pipe connection are established. Since it can guide so that it may be located in the right connection position to the mouth 8, it comes to be sure that a mistake does not arise in the temporary connection to the water supply pipe connection port 7 or the water supply pipe connection port 8 of the water supply pipe 4 or the water supply pipe 5. It is. In other words, the water supply pipe 4 is connected to the water supply pipe connection port 7 and the water supply pipe 5 is connected to the partition wall 59c of the fitting hole 59 and the portion of the fitting protrusion 58 (block-shaped protrusion 58a) that hits the partition wall 59c. Is blocked when the pipe mounting member 9 is not located at a predetermined mounting position on the side surface of the switching unit 2 connected to the water pipe connection port 8 to prevent the pipe mounting member 9 from approaching the side surface of the switching unit 2. The switching unit 2 which comprises the part 14 and the to-be-prevented part 15 and has the water supply pipe connection port 7 and the water supply pipe connection port 8 at the wrong positions of the pipe attachment members 9 attached to the water supply pipe 4 and the water supply pipe 5. Therefore, the provisional connection of the water supply pipe 4 and the water supply pipe 5 to the water supply pipe connection port 7 and the water supply pipe connection port 8 is prevented from occurring.

BRIEF DESCRIPTION OF THE DRAWINGS It is a water treatment apparatus of the example of embodiment of this invention, (a) is a sectional side view of a switching unit, (b) is a front view of a pipe attachment member, (c) is K of (a). FIG. (A) is the whole perspective view of a water treatment apparatus same as the above, (b), (c) is a perspective view of the principal part. It is a disassembled perspective view of a switching unit same as the above. It is a perspective view of the principal part of a switching unit same as the above. It is a sectional side view of the same switching unit of a cross section different from FIG. It is explanatory drawing explaining a processing unit same as the above. It is the disassembled perspective view which looked at the processing unit same as the above from the rear side. (A) (b) is explanatory drawing which demonstrates the connection construction to the switching unit of a water supply pipe and a water supply pipe same as the above. It is a whole perspective view of the water treatment apparatus of the example of a prior art. It is a whole perspective view of the water treatment apparatus of the other example of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water treatment apparatus 2 Switching unit 3 Processing unit 4 Water supply pipe 5 Water supply pipe 5
6 Water faucet 7 Water supply pipe connection port 8 Water supply pipe connection port 9 Pipe mounting member 10 Water supply pipe insertion hole 11 Water supply pipe insertion hole 12 Positioning portion 13 Positioned portion 14 Blocking portion 15 Blocked portion 16 Taper portion 17 Peripheral wall 18 Male screw 19 Cap member 20 Female screw 21 Abutting portion 22 Abutted portion

Claims (4)

A switching unit that switches raw water to a predetermined outlet or water channel by a switching valve attached to a faucet that supplies raw water, a processing unit that performs raw water treatment separately from the switching unit, and a switching unit. It has a water supply pipe for supplying raw water switched by the switching valve to the treatment unit, and a water supply pipe for feeding treated water treated by the treatment unit to the switching unit, and the diameter of the water supply pipe and the water supply pipe is reduced. The water supply pipe connection port and the water supply pipe connection port provided in the treatment unit are formed with different diameters, and the diameters of the water supply pipe and the water supply pipe connection port are matched. A water treatment apparatus comprising a water pipe and a water pipe connection port connected to each other. A water supply pipe connection port and a water supply pipe connection port are juxtaposed on the side surface of the treatment unit to form a water supply pipe insertion hole having the same diameter as the outer diameter of the water supply pipe and a water supply pipe insertion hole having the same diameter as the outer diameter of the water supply pipe The pipe attachment member is attached to the end of the water supply pipe and the water supply pipe by inserting the water supply pipe through the water supply pipe connection port and the water supply pipe through the water supply pipe connection port. A pipe attachment member is attached to the side, and when the pipe attachment member is located at a predetermined attachment position on the side face of the switching unit where the water supply pipe is connected to the water supply pipe connection port and the water supply pipe is connected to the water supply pipe connection port. The water treatment apparatus according to claim 1, wherein the positioning portion and the positioned portion are provided on the side surface of the switching unit and the pipe mounting member. A water supply pipe connection port and a water supply pipe connection port are juxtaposed on the side surface of the treatment unit to form a water supply pipe insertion hole having the same diameter as the outer diameter of the water supply pipe and a water supply pipe insertion hole having the same diameter as the outer diameter of the water supply pipe The pipe attachment member is attached to the end of the water supply pipe and the water supply pipe by inserting the water supply pipe through the water supply pipe connection port and the water supply pipe through the water supply pipe connection port. When the pipe mounting member is not located at a predetermined mounting position on the side surface of the switching unit that is connected to the water supply pipe connection port and the water supply pipe is connected to the water pipe connection port, the pipe mounting member contacts the side surface of the switching unit. The water treatment apparatus according to claim 1, wherein a blocking portion and a blocked portion for blocking proximity are provided on a side surface of the switching unit and a pipe mounting member. The water supply pipe connection port and the water supply pipe connection port are each formed in a cylindrical shape projecting outward from the side surface of the switching unit, and each of the cylindrical water supply pipe connection port and the water supply pipe connection port is provided with a tapered portion that decreases in diameter toward the tip. A cylindrical peripheral wall that surrounds the water supply pipe connection port and the water supply pipe connection port is formed on the side surface of the switching unit, and a male screw is engraved on the outer peripheral surface of the peripheral wall, and the ends of the water supply pipe and the water supply pipe are formed. Place the tubular cap member on the pipe mounting member and the peripheral wall, and place the female screw engraved on the inner peripheral surface of the cap member into the male screw on the peripheral wall. The water supply pipe and the water supply pipe that are in contact with the contacted portion provided on the pipe attachment member toward the switching unit and are fitted on the tapered portion of the water supply pipe connection port and the water supply pipe connection port are connected to the water supply pipe insertion hole of the pipe attachment member and 4. The water pipe insertion hole is pressed at the inner surface of each hole. Water treatment equipment.

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