JP7194994B2 - Method for refurbishing automatic cleaning equipment, and electromagnetic valve, tool connecting jig, adapter, and main flow passage assembly equipment used in said method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for renovating an automatic flushing device that automatically flushes a toilet by sensing a user, and a solenoid valve, a tool connecting jig, an adapter, and a main flow path fitting used in the method.

Conventionally, as exemplified in FIGS. 1 and 9, a body portion having a main flow path and an opening/closing mechanism for opening and closing the main flow path, and a sensor disposed on the main body or upper lid of the toilet bowl to detect the user. and an internal unit having a drive control unit that controls the drive of the opening/closing mechanism based on a signal detected by the sensor, and an automatic flushing device that automatically flushes a toilet bowl has been put into practical use (Patent Document 1: Japanese Unexamined Patent Application Publication No. 2009-084791).

JP 2009-084791 A

However, in the conventional automatic cleaning apparatus illustrated in FIGS. 1 and 9, over time, not a few failures, particularly in sensors, have occurred. confronting. In other words, when the sensor fails, it becomes impossible (or difficult) to restore the status quo, so the automatic flushing function cannot be maintained, and the entire toilet must be replaced. Issues that arise can arise.

The present invention has been made in view of the above circumstances, and when a sensor or the like of an automatic flushing device of a toilet fails, the automatic flushing function is restored while utilizing a part of the automatic flushing device without replacing the entire toilet bowl. It is an object of the present invention to provide a refurbishment method that allows the remodeling method to be used, and also to provide an electromagnetic valve, a tool connecting jig, an adapter, and a main flow path incorporating instrument used in the method.

As one embodiment, the above problem is solved by means of solution as disclosed below.

The disclosed refurbishment method includes a main body having a main flow path for communicating flush water from a water intake to a water supply and an opening/closing mechanism for opening and closing the main flow, and a toilet bowl body or upper lid for use. an internal unit having a sensor for sensing a person and a drive control section for controlling the driving of the opening/closing mechanism according to a sensing signal from the sensor, the opening/closing mechanism being opened to open the main flow path; A method for remodeling an automatic flushing device for automatically flushing a toilet by allowing the flushing water to flow through the opening/closing mechanism, wherein the opening/closing mechanism includes a main electromagnetic valve attached to an installation opening provided in the middle of the main passage. either a step of disconnecting the wiring connected to the internal mold unit to stop functioning, or a step of disconnecting the wiring and then removing all or part of the internal mold unit. a step of removing the main solenoid valve from the mounting opening; a step of fixing a water stop cover to the mounting opening to seal the mounting opening; a step of removing a predetermined portion of the main flow passage on the downstream side of the above; a step of attaching, a step of attaching the solenoid valve directly or via an adapter to the main flow passage assembly, a second sensor for sensing a user, and driving the solenoid valve by a sensing signal of the second sensor. and fixing an external unit having a second drive control unit for controlling so as to be arranged on the top cover.

According to the disclosed refurbishment method, in an automatic flushing device in which a sensor for detecting a user is provided on the main body or the upper lid of the toilet bowl and the sensing signal is used to open and close the main flow path, when the sensor or the like breaks down, the automatic flushing device It is possible to realize renovation that restores the automatic cleaning function while utilizing a part of the Therefore, it is possible to suppress the occurrence of large-scale work and great expenses such as replacement of the entire toilet bowl when a sensor or the like fails, and it is possible to realize simple and low-cost refurbishment. .

It is a schematic diagram showing an example of a toilet provided with an automatic flushing device according to a conventional embodiment. FIG. 2 is a schematic diagram (perspective view from above the front) explaining an example of an automatic flushing device provided in the toilet bowl of FIG. 1 ; It is an explanatory view (perspective view from the front upper part) explaining the renovation method concerning a first embodiment of the present invention. It is an explanatory view (perspective view from the front upper part) explaining the renovation method concerning a first embodiment of the present invention. It is an explanatory view (perspective view from the front upper part) explaining the renovation method concerning a first embodiment of the present invention. 1 is a schematic diagram showing an example of a toilet equipped with an automatic flushing device to which the remodeling method according to the first embodiment of the present invention is applied; FIG. FIG. 2 is a schematic diagram (perspective view) showing an example of a main flow path incorporating instrument used in the remodeling method according to the first embodiment of the present invention; FIG. 2 is a schematic diagram (perspective view) showing an example of a main flow path incorporating instrument used in the remodeling method according to the first embodiment of the present invention; FIG. 10 is a schematic diagram showing another example of a toilet provided with an automatic flushing device according to a conventional embodiment; FIG. 10 is a schematic diagram (perspective view from above the front) explaining an example of an automatic flushing device provided in the toilet bowl of FIG. 9 ; It is explanatory drawing (perspective view from the front upper direction) explaining the remodeling method which concerns on 2nd embodiment of this invention. It is explanatory drawing (perspective view from the front upper direction) explaining the remodeling method which concerns on 2nd embodiment of this invention. It is explanatory drawing (perspective view from the front upper direction) explaining the remodeling method which concerns on 2nd embodiment of this invention. FIG. 4 is a schematic diagram showing an example of a toilet provided with an automatic flushing device to which the remodeling method according to the second embodiment of the present invention is applied; 11 is an enlarged view of a cylinder chamber of the automatic cleaning device of FIG. 10; FIG. It is a schematic diagram (perspective view) which shows the example of the electromagnetic valve used for the remodeling method which concerns on embodiment of this invention. FIG. 17 is a schematic diagram (plan view) of the solenoid valve shown in FIG. 16; FIG. 17 is a schematic diagram (front sectional view) of the solenoid valve shown in FIG. 16; It is a schematic diagram (perspective view) which shows the example of the tool connection jig|tool used for the remodeling method which concerns on embodiment of this invention. FIG. 4 is an explanatory diagram of a configuration for connecting an electromagnetic valve, a tool connecting jig, and a turning tool used in the remodeling method according to the embodiment of the present invention; FIG. 4 is a schematic diagram (perspective view) showing an example of an adapter used in the retrofitting method according to the embodiment of the present invention; FIG. 4 is a schematic diagram (perspective view) showing an example of an adapter used in the retrofitting method according to the embodiment of the present invention; It is a schematic diagram (front sectional view) which shows the example of the adapter used for the remodeling method which concerns on embodiment of this invention. It is a schematic diagram (perspective view) which shows the example of the water stop cover used for the remodeling method which concerns on embodiment of this invention.

[First embodiment]
(Renovation method)
A first embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic diagram showing an example of a toilet bowl 1 equipped with an automatic flushing device according to a conventional embodiment. As an example, the toilet bowl 1 comprises a main body 1A and an upper lid 1B fitted on the upper part of the main body 1A. It is configured. FIG. 2 shows the configuration of the upper portion of the main body 1A with the upper lid 1B removed. In addition, in all drawings for describing the embodiments, members having the same functions are denoted by the same reference numerals, and repeated description thereof may be omitted.

First, the automatic washing device 4 according to the conventional embodiment includes, as an example, a main flow path 18A that communicates from a water intake port 14A to a water feed port 16A to flow wash water, and an opening/closing mechanism 20A that opens and closes the main flow path 18A. is disposed on the upper portion of the main body 1A of the toilet bowl 1. Further, an internal unit 12 having a sensor 12A for sensing a user and a drive control section 12B for controlling the drive of the opening/closing mechanism 20A based on a sensing signal from the sensor 12A is disposed on the upper lid 1B of the toilet bowl 1. According to this, the sensor 12A senses the user (usage state) and sends a sensing signal to the drive control section 12B, and then the drive control section 12B sends an opening command signal to the opening/closing mechanism 20A. The opening/closing mechanism 20A is opened to open the main flow path 18A, allowing flushing water to flow therethrough, thereby obtaining an effect of automatically flushing the toilet bowl 1. FIG.

As an example, the main flow path 18A serves as a flow path that takes in water from the water intake port 14A connected to the water supply pipe 30A, passes through the main body portion 10A, and feeds the water to the main body 1A of the toilet bowl 1 connected to the water supply port 16A. It is configured. Here, the automatic cleaning device 4 is constructed by attaching a main electromagnetic valve 24 to an attachment opening 22 provided in the middle of the main flow path 18A as the opening/closing mechanism 20A. Therefore, to explain more specifically the above-mentioned "operation in which the drive control unit 12B sends an opening command signal to the open/close mechanism 20A to open the open/close mechanism 20A and open the main flow path 18A", the drive control unit 12B By sending a command signal to open the main solenoid valve 24, the main solenoid valve 24 incorporated in the flow path of the main flow path 18A (that is, the flow path in the main solenoid valve 24 forms part of the main flow path 18A). ) is driven by the command signal, the flow path in the main solenoid valve 24 changes from the closed position to the open position, and the effect of opening the main flow path 18A is obtained.

Therefore, if the internal unit 12, that is, the sensor 12A, the drive control section 12B, or the like breaks down, the automatic flushing function of the toilet cannot be obtained. At this time, if a replacement part such as the failed sensor 12A or the drive control unit 12B can be obtained, the system can be restored to the current state. However, as mentioned above, if the manufacture and supply of replacement parts ends due to the passage of time, the automatic flushing function cannot be restored, and a problem may arise in which the entire toilet must be replaced. .

Therefore, in order to restore the automatic cleaning function while utilizing a part of the existing automatic cleaning device 4 when the sensor 12A or the like fails, the remodeling method according to the present embodiment is characterized by comprising the following steps. .

First, in a state in which the upper lid 1B is removed from the main body 1A of the toilet bowl 1, the wiring 26 connected to the internal mold unit 12 is disconnected, and the step SA1 of stopping the function of the internal mold unit 12 is performed (FIG. 2 shows , the wiring 26 is disconnected from the internal mold unit 12). At this time, after disconnecting the wiring 26, a step of removing all or part of the internal mold unit 12 may be added (this additional step is not essential). However, for example, when the sensor 12A is removed from the upper lid 1B, that portion is opened, so it is preferable to attach a sealing member (not shown) separately so as not to impair the appearance.

Next, after step SA1, as shown in FIG. 3, after taking measures to prevent water spray by closing the stopcock 28 for stopping the water to flow through the main flow path 18A, the flow path of the main flow path 18A A step of removing the main solenoid valve 24 from the mounting opening 22 provided in the middle (step SA2), and a step of removing the predetermined portion 18a of the main flow passage 18A downstream of the mounting opening 22 in the main flow passage 18A (step SA3) is performed. Here, either step SA2 or step SA3 may be performed first. In the actual field, it is often the case that the removal work in step SA2 is easier if step SA3 is performed first. Note that the water fountain prevention measure may be implemented before step SA1, or may be implemented by closing a main faucet (not shown) provided upstream of the water intake.

Next, after step SA2 and step SA3, as shown in FIG. (step SA4). A detailed configuration of the water stop lid 240 will be described later.

Next, after step SA4, as shown in FIG. 5, the main flow path assembly is carried out by mounting an electromagnetic valve 120 for restoring the flow path and opening/closing the flow path at a position where the predetermined portion 18a is removed in the main flow path 18A. A step of attaching the device 200 (step SA5) and a step of directly attaching the solenoid valve 120 to the main flow passage incorporating device 200 (step SA6) are performed. Here, either step SA5 or step SA6 may be performed first. That is, first, the main flow passage assembly tool 200 (without the solenoid valve 120 attached) may be attached to the position where the predetermined portion 18a is removed, and then the main flow passage assembly assembly 200 may be attached with the solenoid valve 120, or Alternatively, the solenoid valve 120 may be attached to the main channel assembly tool 200 first, and then the main channel assembly tool 200 (with the solenoid valve 120 attached) may be attached to a position where the predetermined portion 18a is removed. Although the detailed configuration of the main flow passage assembly 200 will be described later, the object to which the solenoid valve 120 is attached (the “attachment target”) in this embodiment is the electromagnetic valve mounting portion 204 of the main flow passage assembly 200 .

According to the above configuration, the main flow passage assembly device 200 is attached at a position where the predetermined portion 18a is removed in the main flow passage 18A, and the flow passage from the water intake port 14A to the water supply port 16A is restored, and the water supply to the toilet bowl 1 is stopped. It becomes possible. Furthermore, an electromagnetic valve 120 is attached in the middle of the flow path, making it possible to open and close the flow path (main flow path 18A). That is, the solenoid valve 120 receives an on/off signal based on a user's sensing signal, opens the flow path by energizing the solenoid portion, and closes the flow path by demagnetizing (for details of the configuration and operation, see later). Therefore, instead of the main electromagnetic valve 24 removed from the main flow path 18A, the main flow path 18A can be opened and closed.

Here, the step of attaching the above-described electromagnetic valve 120 to the main flow passage assembly device 200 is performed by attaching to the electromagnetic valve 120 the detachable tool connection jig 110 that transmits the rotating force of the rotating tool to the electromagnetic valve 120, and then rotating the tool. By connecting the power tool to the tool connecting jig 110 and rotating it, the solenoid valve 120 is rotated, and the male threaded portion 128 provided on the outer peripheral portion of the solenoid valve 120 is moved to the attachment target (the main flow path incorporating tool 200). It may be carried out as a step of fixing by screwing it into a female screw portion provided at a predetermined position of the electromagnetic valve mounting portion 204 (the detailed configuration of the tool connecting jig 110 will be described later). Alternatively, a rotating tool is directly connected to the solenoid valve 120 and rotated to rotate the solenoid valve 120 so that the male threaded portion 128 provided on the outer peripheral portion of the solenoid valve 120 can be attached to the attachment target (the main flow path built-in device). 200 may be carried out as a step of fixing by screwing it into a female thread provided at a predetermined position of the solenoid valve mounting portion 204).

Next, after steps SA5 and SA6, as shown in FIG. 6, a second sensor 32A for sensing the user, and a second sensor 32A for controlling the drive of the electromagnetic valve 120 by the sensing signal of the second sensor 32A. A step of placing the external unit 32 having the drive control part 32B on the upper lid 1B of the toilet bowl 1 and fixing it to the upper lid 1B is performed (step SA7). At this time, after connecting the control wiring from the external mold unit 32 to the electromagnetic valve 120, the upper lid 1B may be fitted at a predetermined position on the main body 1A. Although the external unit 32 is configured to be driven by a battery, it is not limited to this, and may be configured to be driven by a commercial power supply of AC 100 [V] via an AC adapter or the like as appropriate (unnecessary). shown). Further, the mounting destination of the fixture for fixing the external mold unit 32 on the upper lid 1B may be the main body 1A or the wall surface.

As described above, the body part 10A of the existing automatic flushing device is arranged on the upper part of the body 1A, and the internal type unit 12 for sensing the user and controlling the flow of water is arranged on the upper lid 1B. 1, for example, when the internal type unit 12 (sensor 12A, etc.) fails, the mechanism for opening and closing the main flow path 18A is changed from the configuration using the main solenoid valve 24 to the electromagnetic It is possible to realize a retrofit method that restores the automatic cleaning function while switching to the configuration using the valve 120 . Therefore, since it is not necessary to replace the toilet bowl itself, or to demolish the wall to replace or install new equipment and piping, the remodeling work can be simplified, and the cost of parts and work can be greatly reduced. becomes possible. Moreover, this refurbishment method can be effectively applied not only when the internal unit 12 (sensor 12A, etc.) fails, but also when, for example, the main electromagnetic valve 24 or the like fails.

In the present embodiment, the configuration in which the main unit 10A is disposed above the main unit 1A as an existing automatic cleaning device has been described as an example, but the present invention is not limited to this. This refurbishment method can be similarly applied to a structure (not shown) in which a is arranged in a wall or in the vicinity of a wall.

(solenoid valve)
Next, the electromagnetic valve 120 used in the remodeling method according to this embodiment will be described in detail.

A perspective view (schematic view) of an electromagnetic valve 120 according to this embodiment is shown in FIG. 16, a plan view (schematic view) is shown in FIG. 17, and a front sectional view (schematic view) is shown in FIG. As a schematic configuration of the solenoid valve 120, a base portion 122 arranged in the center, a solenoid portion 124 fixed to a first end portion 122a of the base portion 122 via a fixing cap 132, and a solenoid portion 124 held inside the base portion 122. and a valve portion 126 that protrudes from the second end portion 122b.

First, the base portion 122 is formed using a metal material (eg, brass). As a specific configuration, a male screw that can be screwed into a female screw portion 206 provided on an inner peripheral portion 204a of an object to be attached (in the first embodiment, the solenoid valve attachment portion 204 of the main flow passage assembly device 200) It is formed in a cylindrical shape having a portion 128 on its outer periphery, and has a flange portion 130 protruding radially outward at the first end portion 122a.

According to this configuration, by screwing and fixing the male threaded portion 128 of the base portion 122 to the female threaded portion 206 of the inner peripheral portion 204a of the attachment target (solenoid valve attachment portion 204 of the main flow passage assembly 200), It becomes possible to fix the solenoid valve 120 to the attachment target (the solenoid valve attachment portion 204 of the main flow passage integrated instrument 200). In particular, by using a metal material for this portion, it is possible to reliably fix it while preventing water leakage.

Next, the fixed cap 132 is formed using a resin material (eg, polypropylene resin, polyacetal resin, etc.). Here, when mounting the electromagnetic valve 120 to the mounting target, it is necessary to rotate and screw together. Therefore, in the present embodiment, a plurality of jig mounting portions 136 for detachably mounting a tool connecting jig 110 (described later) for connecting the rotating tool T are provided at a plurality of locations so as to sandwich the solenoid portion 124 therebetween. ing. As an example, the jig mounting portions 136 are provided at two positions facing each other with the solenoid portion 124 interposed therebetween. The jig mounting portion 136 according to the present embodiment is also provided as a fixing groove portion 134 for fixing the solenoid portion 124 (specifically, the fixing plate 142 to which the stay 140 is fixed) to the fixing cap 132 .

In the jig mounting portion 136, that is, the fixed groove portion 134, wall portions 134a formed along the axial direction at both ends in the circumferential direction receive the turning force of the tool connecting jig 110 turned by the turning tool T. Acting part.

Next, the valve portion 126 is basically formed using a resin material (eg, polypropylene resin, polyacetal resin, etc., and the seal portion is an elastomer material) except for the metal portion such as the coil spring 150 . As a schematic configuration of the valve portion 126, an inlet 152 and an outlet 154 are formed at the outer periphery and radial center of the distal end portion 126a of the base portion 122 on the far side from the second end portion 122b. Further, a flow path 156 that communicates from the inflow port 152 to the outflow port 154 to flow cleaning water, and a differential pressure movable diaphragm valve 158 (valve element 158a, valve seat 158b) that opens and closes the flow path 156. , one end of which communicates with the valve box 158c, which is the movement space of the diaphragm valve 158, and the other end of which communicates with the communication passage 156 at a position downstream of the position where the diaphragm valve 158 is disposed. A passage 160 and a pilot valve 162 (valve element 162a, valve seat 162b) that opens and closes the exhaust pressure drain passage 160 by connecting a valve element 162a to the movable iron core 148 of the solenoid portion 124 is provided. In addition, around the outflow port 154 in the tip portion 126a, a tip seal that is brought into close contact with the second sealing surface 210 formed on the bottom surface portion 204b that is the back side of the attachment target (solenoid valve mounting portion 204 of the main flow path incorporating instrument 200). A portion 174 (illustratively formed in an annular shape using an elastomeric material) is provided.

According to this, the following effects are obtained. Specifically, when the second sensor 32A senses the user, the second drive control section 32B energizes the solenoid section 124 (coil 144) of the solenoid valve 120 according to the sensing signal, and the fixed iron core 146 and the like are excited. As a result, the movable iron core 148 moves in the direction of being attracted to the fixed iron core 146, and the valve body 162a of the pilot valve 162 moves away from the valve seat 162b, so that the exhaust pressure drain passage 160 is opened. (for example, it is set to about several seconds). At this time, since the exhaust pressure drain passage 160 communicates with the communication passage 156 at a position downstream of the position where the diaphragm valve 158 is arranged, the pressure in the exhaust pressure drain passage 160 is reduced to the atmosphere. be in a released state. Therefore, the pressure in the portion of the valve body 158c of the diaphragm valve 158 (the portion opposite to the side where the valve seat 158b is provided with respect to the valve body 158a) communicating with the exhaust pressure drain passage 160 is reduced. The valve body 158a moves from the side where the valve seat 158b is provided in the valve box 158c to the side opposite to the side where the valve seat 158b is provided. As a result, the flow path 156 is opened, so that the wash water flows from the inlet 152 to the outlet 154 . On the other hand, as a subsequent operation, when the electromagnetic valve 120 is demagnetized, the state in which the movable iron core 148 is attracted to the fixed iron core 146 is released, and the action of the return spring (coil spring) 172 causes the valve body of the pilot valve 162 to move. 162a comes into close contact with the valve seat 162b and the exhaust pressure drain passage 160 is closed. Here, since the valve element 158a of the diaphragm valve 158 has a small hole 158d that communicates the side on which the valve seat 158b is provided and the opposite side to the side on which the valve seat 158b is provided, the valve body 158c of the diaphragm valve 158 Inside, washing water gradually fills up from the inflow port 152 side through the small hole 158d to the back side of the valve body 158a (the side opposite to the side where the valve seat 158b is provided). Further, a return spring (coil spring) 150 is provided on the back side of the valve body 158a, and due to their action, the valve body 158a comes into contact with the valve seat 158b. Flow of cleaning water stops.

Here, as a configuration characteristic of the present embodiment, the valve portion 126 is a member that seals between the inner peripheral portion 204a of the attachment target (the solenoid valve attachment portion 204 of the main flow path incorporating device 200) at the outer peripheral portion. As such, the first seal portion 164 is fitted at a position close to the base portion 122 (second end portion 122b), and the second seal portion is fitted at a position far from the base portion 122 (second end portion 122b). 166 is fitted. As an example, the first seal portion 164 uses an O-ring made of an elastomer material. A self-sealing type U-packing made of an elastomer material is used for the second seal portion 166, and the fluid pressure of the cleaning water flowing in from the inlet 152 ensures airtightness.

Further, the exhaust pressure drain channel 160 has an outer peripheral channel 168 formed in the outer peripheral portion between the first seal portion 164 and the second seal portion 166 of the valve portion 126 . This outer peripheral flow path 168 communicates with a predetermined position in the valve body 158c of the diaphragm valve 158 (the position opposite to the side where the valve seat 158b is provided with respect to the valve element 158a) with the pilot valve 162 interposed therebetween. In addition, it communicates with the flow path 156 at a position downstream of the position where the diaphragm valve 158 is arranged.

According to the above configuration, it is possible to form the valve portion 126 having the exhaust pressure drain passage 160 that performs the desired function with a resin material instead of a metal material. As a result, it is possible to reduce the weight of the solenoid valve 120, reduce the material cost, simplify and facilitate the manufacturing process, and improve the reliability. In particular, since the exhaust pressure drain passage 160 can be entirely or mostly formed by molding using a mold, machining becomes unnecessary or extremely simple. More specifically, if the valve portion 126 were formed of a metal material, due to restrictions on machining, for example, a portion of the flow path forming the exhaust pressure drain flow path 160 would be drilled from the outer peripheral portion, and then a spherical shape would be formed. Problems such as complication of the manufacturing process and decreased reliability (risk of water leakage) of the flow path (hole filling part) may arise, such as the need to fill holes with metal materials, but it is possible to solve these problems with the above configuration. becomes.

(Tool connection jig)
Next, the tool connecting jig 110 used in the remodeling method according to this embodiment will be described in detail.

FIG. 19 shows a perspective view (schematic view) of the tool connecting jig 110 according to this embodiment. The tool connecting jig 110 has legs 112 that are detachably attached to jig attachment portions 136 provided on a fixing cap 132 of the solenoid valve 120 so as to sandwich the solenoid portion 124 of the solenoid valve 120. A connecting portion that can connect the rotating tool T so that the axial center of the electromagnetic valve 120 and the axial center of the rotating tool T are aligned with each other when the portion 112 is attached to the fixed cap 132 (the jig mounting portion 136). 116. As an example, the connecting portion 116 is provided at a position where the center (axis) coincides with the axis of the solenoid valve 120 .

As shown in FIG. 19, the tool connecting jig 110 according to the present embodiment has a U-shape (U-shape) formed by bending a plate-like member using a metal material (for example, iron). It is formed in a shape having two side wall portions 110b and 110c extending in the same direction from the top. Here, leg portions 112 are provided at the tip portions of the two side wall portions 110b and 110c. As a result, the leg portion 112 is attached to the jig mounting portion 136 (there is no need to abut the solenoid portion 124) in such a manner that the solenoid portion 124 of the electromagnetic valve 120 is sandwiched, that is, the leg portion 112 is fitted so as to straddle the solenoid portion 124 (there is no need to contact the solenoid portion 124). That is, it is possible to detachably attach (engage with) the groove that also serves as the fixing groove portion 134 . Therefore, the width dimension of the leg portion 112 (the width dimension of the tip portion of the side wall portions 110b and 110c) is formed to be the same dimension that can be engaged with the circumferential dimension of the jig mounting portion 136 (fixing groove portion 134).

In addition, as a characteristic configuration of the tool connecting jig 110 according to the present embodiment, in the side wall portions (for example, the side wall portions 110b and 110c), from a point-symmetrical position about the connecting portion 116) A tilt prevention stopper 114 projecting inward is provided. As a modification, one side wall portion 110b (or 110c) or two side wall portions 110b and 110c may be provided with tilt prevention stoppers 114 at both ends in the width direction (not shown).

In particular, the tilt prevention stopper 114 does not abut when the connecting portion 116 is aligned with the axial center of the solenoid valve 120, and when the connecting portion 116 is tilted to deviate from the axial center of the solenoid valve 120 by a predetermined amount. It is configured to be contactable. Therefore, when the rotating tool T is connected to the connecting portion 116 and the solenoid valve 120 is rotated via the tool connecting jig 110, if the tool connecting jig 110 is at a predetermined engaging position (connecting portion 116 coincides with the axis of the solenoid valve 120), the tilt prevention stopper 114 is released when the predetermined amount of tilt occurs. , contact with the stay 140 of the solenoid valve 120 to prevent further tilting. Therefore, the work of mounting the solenoid valve 120 to the cylinder chamber 21 can be performed reliably and easily. Here, as described above, the anti-tilt stopper 114 is configured not to contact the solenoid portion 124 (stay 140) when the tool connecting jig 110 is attached to the jig attachment portion 136 at a predetermined position. This is because the stay 140 of the solenoid valve 120 is not supposed to be used as a rotational force acting portion that receives the rotational force, so that the actuation force is prevented from being transmitted due to the contact of the tilt prevention stopper 114. Purpose.

As an example of the rotating tool T for rotating the tool connecting jig 110, a general-purpose hexagonal wrench is used. Therefore, the connecting portion 116 is configured with a hexagonal connecting hole (or a connecting groove) to which the rotating tool T (here, a hexagonal wrench) can be connected. However, the rotating tool T is not limited to a hexagonal wrench, and may be a socket wrench, a screwdriver, or the like. Just do it. FIG. 20 shows a schematic diagram of connecting the solenoid valve 120, the tool connecting jig 110, and the rotating tool T. As shown in FIG.

(Equipment built into the main flow path)
Next, the main flow passage incorporating device 200 used in the remodeling method according to this embodiment will be described in detail.

FIG. 7 shows a perspective view (schematic diagram) of a main flow passage incorporating device 200 according to this embodiment. The main flow path assembly device 200 includes a flow path section 202 that replaces the removed predetermined portion 18a in the main flow path 18A, and an electromagnetic valve 120 that is provided in the middle of the flow path of the flow path section 202 and has an electromagnetic valve 120 attached thereto. and a valve attachment portion 204 . FIG. 8 shows a state in which the electromagnetic valve 120 is inserted and screwed into the electromagnetic valve mounting portion 204 and fixed at a predetermined position. If the outer diameter of the solenoid valve 120 is set smaller than the inner diameter of the solenoid valve mounting portion 204 for various reasons, an adapter may be provided between the solenoid valve mounting portion 204 and the solenoid valve 120 as a modification. 180 (detailed configuration will be described later) to attach the solenoid valve 120 to the solenoid valve attachment portion 204 .

The electromagnetic valve mounting portion 204 according to the present embodiment is formed in a bottomed cylindrical shape into which the electromagnetic valve 120 can be inserted using a metal material (brass as an example), and is provided on the outer peripheral portion of the electromagnetic valve 120. A female threaded portion 206 that can be screwed onto the male threaded portion 128 is provided on the inner peripheral portion 204a. Further, when the electromagnetic valve 120 is inserted and screwed into the inner peripheral portion 204a and fixed at a predetermined position, the first seal portion 164 fitted to the outer peripheral portion of the electromagnetic valve 120 and the second sealing portion 164 are closed. A first sealing surface 208 that seals by closely contacting both with the sealing portion 166, and an upstream side that is penetratingly formed closer to the bottom surface portion 204b than the first sealing surface 208 and communicates with the upstream side of the flow path portion 202. An opening 212 is provided.

In addition, a downstream opening 214 that penetrates and communicates with the downstream side of the flow path portion 202 is provided at the center in the radial direction of the bottom surface portion 204b. Further, on the inner surface of the bottom surface portion 204b, around the downstream opening 214, when the electromagnetic valve 120 is inserted and screwed and fixed at a predetermined position, the tip of the electromagnetic valve 120 A second seal surface 210 is provided to closely contact the tip seal portion 174 provided on the portion 126a.

On the other hand, the flow passage portion 202 according to the present embodiment includes an upstream flow passage 202 a using a bellows pipe made of a metallic material connected to the upstream opening 212 of the electromagnetic valve mounting portion 204 , and a flow path 202 a downstream of the electromagnetic valve mounting portion 204 . and a downstream flow path 202b using a rotating L-shaped pipe made of a metal material connected to the side opening 214. As shown in FIG. A pipe joint 216 is provided at the upstream end of the upstream flow path 202a, and a pipe joint 218 is provided at the downstream end of the downstream flow path 202b. In this way, since the flow path section 202 is configured with the bellows piping and the rotary L-shaped piping, it is easy and It can be done with certainty.

(adapter)
Next, the adapter 180 used in the remodeling method according to this embodiment will be described in detail.

As schematic diagrams of the adapter 180 according to this embodiment, a perspective view of the first end portion 180a side is shown in FIG. 21, a perspective view of the second end portion 180b side is shown in FIG. 22, and a front sectional view is shown in FIG.

This adapter 180 is formed in a cylindrical shape with different diameters using a metal material (brass as an example). As a specific configuration, the outer peripheral portion has a male screw portion 182 that can be screwed into the female screw portion 206 of the inner peripheral portion 204a of the attachment target (solenoid valve attachment portion 204 of the main flow passage assembly 200), and , a female threaded portion 184 that can be screwed into the male threaded portion 128 of the outer peripheral portion of the electromagnetic valve 120 is provided on the inner peripheral portion. Further, the first end portion 180a has a flange portion 186 projecting radially outward. The outer peripheral portion of the brim-shaped portion 186 is configured as a tool locking portion for locking and rotating a general-purpose turning tool (such as a spanner). Further, a water passage port 188 penetrating in the radial direction is formed in the second end portion 180b. Here, the opening 194 provided in the radial center of the second end portion 180b is an opening through which the tip portion 126a of the valve portion 126 of the electromagnetic valve 120 is inserted and arranged in a projected state.

A seal portion 190 is fitted on the outer peripheral portion of the adapter 180 as a member that seals with the inner peripheral portion 204a of the attachment target (the solenoid valve attachment portion 204 of the main flow passage assembly device 200). As an example, the sealing portion 190 uses an O-ring made of an elastomer material. Here, when the adapter 180 is fixed at a predetermined position of the attachment target (solenoid valve attachment portion 204 of the main flow path integration device 200), the seal portion 190 is installed to the attachment target (the main flow path integration device 200 of the electromagnetic valve attachment portion 204). It is arranged at a position in close contact with the first sealing surface 208 of the valve mounting portion 204).

Further, in the inner peripheral portion of the adapter 180, when the solenoid valve 120 is fixed at a predetermined position of the adapter 180, the first seal portion 164 and the second seal portion 166 provided on the solenoid valve 120 A sealing surface 192 is provided for sealing by bringing both of the parts into close contact with each other. Further, in this state, the axial position of the water passage port 188 of the adapter 180 and the axial position of the inlet port 152 of the electromagnetic valve 120 are configured to match. Therefore, washing water is passed from the flow path portion 202 (upstream flow path 202 a ) to the inlet 152 via the water flow port 188 .

According to the adapter 180 having the above configuration, due to various circumstances (for example, using general-purpose products for the solenoid valve 120, the solenoid valve attachment portion 204, etc.), the outer diameter of the solenoid valve 120 may be larger than the attachment target (solenoid valve Even if the inner diameter of the mounting portion 204) is smaller than the inner diameter of the mounting portion 204, the adapter 180 is interposed between the solenoid valve mounting portion 204 and the solenoid valve 120, so that the solenoid valve 120 can be attached to the solenoid valve mounting portion 204. It can be installed.

(water stop lid)
Next, the waterproof cover 240 used in the remodeling method will be described in detail.

FIG. 24 shows a schematic diagram (perspective view seen from the side facing the attachment opening 22) of the water stop lid 240 according to this embodiment. This water stop lid 240 is formed using a metal material (brass as an example), and has a flat plate portion 242 and a flat plate portion 242 protruding from the flat plate portion 242 on the side facing the mounting opening 22. and a cylindrical portion 244 .

Here, a seal portion 246 is fitted as a member for sealing between the outer peripheral portion of the cylindrical portion 244 and the inner peripheral portion of the mounting opening 22 . As an example, the sealing portion 246 uses an O-ring made of an elastomer material.

According to this configuration, the cylindrical portion 244 of the water stop cover 240 is inserted into the mounting opening 22 with the main solenoid valve 24 removed, and the flat plate portion 242 is screwed to the main body portion 10A. Sealing of the mounting opening 22 can be effected by.

[Second embodiment]
Next, a second embodiment of the invention will be described. Regarding this embodiment, although the basic configuration is the same as that of the above-described first embodiment, there are some differences in configuration. The present embodiment will be described below with reference to the drawings, focusing on the differences.

(Renovation method)
A second embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 9 is a schematic diagram showing another example of a toilet provided with an automatic flushing device according to a conventional embodiment. As an example, the toilet 2 includes a main body 2A and an upper lid 2B fitted on the upper portion of the main body 2A. configured as follows. FIG. 10 shows the configuration of the upper portion of the main body 2A with the upper lid 2B removed. In addition, in all drawings for describing the embodiments, members having the same functions are denoted by the same reference numerals, and repeated description thereof may be omitted.

First, the automatic washing device 5 according to the conventional embodiment includes, as an example, a main flow passage 18B that communicates from a water intake port 14B to a water feed port 16B to flow washing water, and an opening/closing mechanism 20B that opens and closes the main flow passage 18B. is disposed on the upper portion of the main body 2A of the toilet bowl 2. Further, an internal unit 13 having a sensor 13A for sensing a user and a drive control section 13B for controlling the drive of the opening/closing mechanism 20B based on a sensing signal from the sensor 13A is provided in the main body 2A of the toilet bowl 2. According to this, the sensor 13A senses the user (usage state) and sends a sensing signal to the drive control section 13B, and then the drive control section 13B sends an opening command signal to the opening/closing mechanism 20B, whereby The opening/closing mechanism 20B is opened to open the main flow path 18B, allowing flushing water to flow therethrough, thereby obtaining an effect of automatically flushing the toilet bowl 2. FIG.

As an example, the main flow path 18B serves as a flow path that takes in water from the water intake port 14B connected to the water supply pipe 30B, passes through the main body portion 10B, and feeds the water to the main body 2A of the toilet bowl 2 connected to the water supply port 16B. It is configured. Here, the automatic cleaning device 5 includes, as the opening/closing mechanism 20B, a differential pressure-moving piston valve 23 arranged in the cylinder chamber 21 of the main body 10B, and one end of which is opened in the wall portion of the cylinder chamber 21. A second opening 27 communicates with the cylinder chamber 21 through the first opening 25, and the other end of the second opening 27 is formed downstream of the position where the piston valve 23 of the main flow passage 18B is disposed. and a sub-electromagnetic valve 31 that opens and closes the sub-flow path 29 . Therefore, to explain more specifically the above-mentioned "operation in which the drive control unit 13B sends an open command signal to the open/close mechanism 20B to open the open/close mechanism 20B and open the main flow passage 18B", the drive control unit 13B By sending an open command signal to the sub-electromagnetic valve 31, the sub-electromagnetic valve 31 is driven and the sub-flow path 29 is opened. At this time, since the sub-channel 29 communicates with the main channel 18B on the downstream side through the second opening 27, the pressure in the sub-channel 29 is released to the atmosphere. Therefore, the pressure on the rear end portion 23a side (first opening hole 25 side) of the piston valve 23 is reduced through the first opening hole 25, so that the piston valve 23 moves toward the back side (bottom portion) in the cylinder chamber 21. 21b side) toward the opening end 21a side. This provides an effect of opening the main flow path 18B.

Therefore, if the internal unit 13, that is, the sensor 13A, the drive control section 13B, or the like fails, the automatic flushing function of the toilet cannot be obtained. At this time, if a replacement part such as the failed sensor 13A or the drive control unit 13B can be obtained, the system can be restored to the status quo. However, as mentioned above, if the manufacture and supply of replacement parts ends due to the passage of time, the automatic flushing function cannot be restored, and a problem may arise in which the entire toilet must be replaced. .

Therefore, in order to restore the automatic cleaning function while utilizing a part of the existing automatic cleaning device 5 when the sensor 13A or the like fails, the remodeling method according to the present embodiment is characterized by comprising the following steps. .

First, with the upper lid 2B removed from the main body 2A of the toilet bowl 2, the wiring (not shown) connected to the internal mold unit 13 is disconnected, and the step SB1 of stopping the function of the internal mold unit 13 is carried out. FIG. 10 shows a state in which the wiring is separated from the internal mold unit 13). At this time, after disconnecting the wiring, a step of removing all or part of the internal mold unit 13 may be added (this additional step is not essential). However, for example, when the sensor 13A is removed from the main body 2A, that portion becomes open, so it is preferable to attach a sealing member (not shown) separately so as not to impair the appearance.

Next, after step SB1, as shown in FIG. 11, the water stop valve 19 for stopping the water to flow through the main flow path 18B is closed to take measures to prevent water from flowing into the main flow path 10B. A sealing lid 33 that seals the open end 21a of 21 is removed, and then a differential pressure-moving piston valve 23 that moves in the cylinder chamber 21 to flow and stop water in the main flow passage 18B is installed in the cylinder chamber. 21 is performed (step SB2). Note that the water fountain prevention measure may be implemented before step SB1, or may be implemented by closing a main water tap (not shown) provided further upstream than the stop cock 19 .

Next, after step SB2, an electromagnetic valve 120 for opening and closing the main flow path 18B is installed in the cylinder chamber 21 as shown in FIG. A step of inserting and screwing and attaching to the main body portion 10B and sealing the opening end portion 21a of the cylinder chamber 21 by the electromagnetic valve 120 is carried out (step SB3). That is, the target (“attachment target”) to which the electromagnetic valve 120 in this embodiment is attached is the cylinder chamber 21 of the main body portion 10B. Here, an enlarged view of the cylinder chamber 21 is shown in FIG.

The above step SB3 is carried out as follows. Specifically, after the detachable tool connecting jig 110 for transmitting the turning force of the turning tool T to the electromagnetic valve 120 is attached to the electromagnetic valve 120, the turning tool T is connected to the tool connecting jig 110. By rotating, the solenoid valve 120 is rotated, and the male threaded portion 128 provided on the outer peripheral portion of the solenoid valve 120 is directly screwed into the female threaded portion 21c provided on the inner wall of the cylinder chamber 21 to attach it. . At this time, the tip seal portion 174 provided at the tip portion 126a of the solenoid valve 120 is brought into close contact with the bottom surface portion 21b (second seal surface 21f) of the cylinder chamber 21 on the back side. As a modification, when the outer diameter of the solenoid valve 120 (male threaded portion 128) is set smaller than the inner diameter of the cylinder chamber 21 (female threaded portion 21c), an adapter 180 is interposed therebetween. A process of inserting the solenoid valve 120 into the cylinder chamber 21 and screwing it may be employed. Although the adapter 180 is also shown in FIGS. 12 and 13 to explain the mounting structure, the adapter 180 is not an essential component.

According to the above configuration, the solenoid valve 120 is attached in the middle of the main flow path 18B (that is, the cylinder chamber 21), so that the main flow path 18B can be opened and closed. Therefore, it is possible to open and close the main flow path 18B instead of using the differential pressure movable piston valve 23 removed from the main flow path 18B (cylinder chamber 21).

Next, after step SB3, as shown in FIG. 14, a second sensor 32A for sensing the user and a second drive control unit for controlling the driving of the electromagnetic valve 120 by the sensing signal of the second sensor 32A. A step of fixing the external mold unit 32 having 32B to the upper lid 2B of the toilet bowl 2 is performed by placing it on the upper lid 2B of the toilet bowl 2 (step SB4). At this time, after connecting the control wiring from the external mold unit 32 to the electromagnetic valve 120, the upper cover 2B may be fitted at a predetermined position on the main body 2A. Although the external unit 32 is configured to be driven by a battery, it is not limited to this, and may be configured to be driven by a commercial power supply of AC 100 [V] via an AC adapter or the like as appropriate (unnecessary). shown). Further, the mounting destination of the fixture for fixing the external mold unit 32 on the upper lid 2B may be the main body 2A or the wall surface.

As described above, the body part 10B of the existing automatic flushing device is arranged on the upper part of the body 2A, and the internal type unit 13 for sensing the user and controlling the flow of water is arranged in the body 2A. 2, for example, when the internal type unit 13 (sensor 13A, etc.) fails, a mechanism that opens and closes the main flow path 18B by utilizing a part of the automatic cleaning device is replaced with a differential pressure movement type piston valve 23. It is possible to realize a refurbishment method of restoring the automatic cleaning function while switching from the configuration using the solenoid valve 120 to the configuration using the solenoid valve 120 . Therefore, since it is not necessary to replace the toilet bowl itself, or to demolish the wall to replace or install new equipment and piping, the remodeling work can be simplified, and the cost of parts and work can be greatly reduced. becomes possible. Moreover, this remodeling method can be effectively applied not only when the internal unit 13 (sensor 13A, etc.) fails, but also when, for example, the auxiliary solenoid valve 31 etc. fails.

In the present embodiment, the configuration in which the main unit 10B is disposed above the main unit 2A as an existing automatic cleaning device has been described as an example, but the present invention is not limited to this, and the main unit This refurbishment method can be similarly applied to a structure (not shown) in which a is arranged in a wall or in the vicinity of a wall.

(solenoid valve)
The configuration of the solenoid valve 120 itself according to this embodiment is as described in the above first embodiment. Here, when using the solenoid valve 120 in the remodeling method according to the second embodiment of the present invention, the differences from the case of using it in the remodeling method according to the first embodiment will be mainly described.

In this embodiment, the mounting target of the solenoid valve 120 is the cylinder chamber 21 of the main body portion 10B. Therefore, the male threaded portion 128 of the base portion 122 is configured to be screwed into the female threaded portion 21c of the cylinder chamber 21 of the main body portion 10B. According to this, by screwing and fixing the male threaded portion 128 of the base portion 122 to the female threaded portion 21c of the attachment target (the cylinder chamber 21 of the main body portion 10B), the solenoid valve 120 is fixed to the attachment target (the main body portion 10B). can be fixed to the cylinder chamber 21). In addition, the code|symbol 120a side is called a 1st edge part, and the code|symbol 120b side is called a 2nd edge part.

Further, when the solenoid valve 120 is mounted at a predetermined position in the cylinder chamber 21, the tip seal portion 174 provided at the tip portion 126a of the valve portion 126 opens at the center in the radial direction of the bottom portion 21b of the cylinder chamber 21. The second sealing surface 21f formed around the outflow port 21e is tightly attached. At this time, in a state sealed by the tip seal portion 174, the inflow port 152 of the solenoid valve 120 communicates with the inflow port 21d of the cylinder chamber, and the outflow port 154 of the solenoid valve 120 communicates with the outflow port 21e of the cylinder chamber. becomes.

Furthermore, in this state, both the first seal portion 164 and the second seal portion 166 fitted to the outer peripheral portion of the valve portion 126 are positioned against the inner peripheral portion of the mounting target (cylinder chamber 21 of the main body portion 10B). It becomes the structure which closely_contact|adheres to the provided 1st sealing surface 21g.

Here, the first seal portion 164 is positioned at the position of the first opening hole 25 of the main body portion 10B when the electromagnetic valve 120 is fixed at a predetermined position of the attachment target (cylinder chamber 21 of the main body portion 10B). On the other hand, it is arranged at a position on the inner side of the cylinder chamber 21, that is, at a position near the second end portion 120b of the solenoid valve 120 (close to the tip portion 126a of the valve portion 126). By providing this configuration and the configuration of the outer peripheral flow path 168 described above, it is possible to form the valve portion 126 having the exhaust pressure drain flow path 160 that performs the desired function from a resin material instead of a metal material. As a result, it is possible to reduce the weight of the solenoid valve 120, reduce the material cost, simplify and facilitate the manufacturing process, and improve the reliability. In particular, since the exhaust pressure drain passage 160 can be entirely or mostly formed by molding using a mold, machining becomes unnecessary or extremely simple. More specifically, if the valve portion 126 were formed of a metal material, due to restrictions on machining, for example, a portion of the flow path forming the exhaust pressure drain flow path 160 would be drilled from the outer peripheral portion, and then a spherical shape would be formed. Problems such as complication of the manufacturing process and decreased reliability (risk of water leakage) of the flow path (hole filling part) may arise, such as the need to fill holes with metal materials, but it is possible to solve these problems with the above configuration. becomes.

(adapter)
The configuration of the adapter 180 itself according to this embodiment is as described in the above first embodiment. Here, the difference between the case where the adapter 180 is used in the remodeling method according to the second embodiment of the present invention and the case where it is used in the remodeling method according to the first embodiment will be mainly described.

In this embodiment, the adapter 180 is attached to the cylinder chamber 21 of the main body 10B. Therefore, the male threaded portion 182 of the outer peripheral portion is configured to be screwed into the female threaded portion 21c of the cylinder chamber 21 of the main body portion 10B. According to this, by screwing and fixing the male screw portion 182 of the outer peripheral portion to the female screw portion 21c of the attachment target (cylinder chamber 21 of the main body portion 10B), the adapter 180 is fixed to the attachment target (cylinder chamber 21 of the main body portion 10B). It becomes possible to fix it in the chamber 21).

In addition, the seal portion 190 on the outer peripheral portion seals with the inner peripheral portion (first seal surface 21g) of the mounting target (cylinder chamber 21 of the main body portion 10B). Here, when the adapter 180 is fixed at a predetermined position in the cylinder chamber 21, the seal portion 190 is positioned relative to the position of the first opening hole 25 of the cylinder chamber 21 to the attachment target (main body portion 10B). It is arranged at a position close to the bottom surface portion 21b of the cylinder chamber 21), that is, a position close to the second end portion 180b of the adapter 180. As shown in FIG.

Further, in the inner peripheral portion of the adapter 180, when the solenoid valve 120 is fixed at a predetermined position of the adapter 180, the first seal portion 164 and the second seal portion 166 provided on the solenoid valve 120 A sealing surface 192 is provided for sealing by bringing both of the parts into close contact with each other. Further, in this state, the axial position of the water passage port 188 of the adapter 180 and the axial position of the inlet port 152 of the electromagnetic valve 120 are configured to match. Therefore, the cleaning water flows from the inlet 21 d of the cylinder chamber 21 to the inlet 152 via the water inlet 188 .

According to the adapter 180 having the above configuration, due to various circumstances (for example, using a general-purpose product for the solenoid valve 120, etc.), the outer diameter of the solenoid valve 120 may be larger than the attachment target (the cylinder chamber 21 of the main body 10B). By interposing the adapter 180 between the cylinder chamber 21 and the solenoid valve 120 , the solenoid valve 120 can be attached to the cylinder chamber 21 even if the inner diameter is set smaller than the inner diameter of the cylinder chamber 21 .

As described above, the disclosed refurbishment method and the electromagnetic valve, tool connecting jig, adapter, and main flow passage assembly device used in the refurbishment method can solve the above-mentioned problems, and can be used for the main body or upper lid of the toilet bowl. In an automatic cleaning device equipped with a sensor that detects people and opening and closing the main flow path based on the detection signal, when the sensor, etc. fails, the automatic cleaning function is restored while using a part of the automatic cleaning device. can be realized. Therefore, it is possible to suppress the occurrence of large-scale work and great expenses such as replacement of the entire toilet bowl when a sensor or the like fails, and it is possible to realize simple and low-cost refurbishment. .

Further, it goes without saying that the present invention is not limited to the embodiments described above, and that various modifications can be made without departing from the scope of the present invention. For example, in the above embodiments, examples of application to a configuration in which a unit having a sensor and a drive control section is provided on the upper portion of the toilet bowl body or the upper lid fitted to the upper portion of the toilet bowl body have been mainly described. However, the present invention is also applicable to a configuration in which a unit having the sensor and the drive control section is provided inside the wall or near the wall (for example, a position above the toilet bowl and in front of the wall surface). obtain.

The solenoid valve, the tool connecting jig, the adapter, and the main flow path assembly device described above may be appropriately combined to form a "refurbishing device used in this refurbishing method".

1, 2 Toilet bowls 1A, 2A Main bodies 1B, 2B Upper lids 4, 5 Automatic washing devices 10A, 10B Main bodies 12, 13 Internal type units 18A, 18B Main flow paths 20A, 20B Open/close mechanism 21 Cylinder chamber 22 Mounting opening 23 Piston valve 24 Main solenoid valve 25 First opening hole 27 Second opening hole 29 Sub-flow paths 30A, 30B Water supply pipe 31 Sub-electromagnetic valve 32 External unit 33 Sealing lid 110 Tool connecting jig 112 Leg 114 Anti-tilt stopper 116 Connecting part 120 Solenoid valve 122 Base portion 124 Solenoid portion 126 Valve portion 128 Male screw portion 132 Fixed cap 134 Fixed groove portion 136 Jig attachment portion 140 Stay 152 Inlet 154 Outlet 156 Flow passage 158 Diaphragm valve 160 Exhaust pressure drain passage 162 Pilot valve 164 First seal portion 166 Second seal portion 168 Outer peripheral flow path 174 Tip seal portion 180 Adapter 200 Main flow passage assembly 202 Flow path portion 204 Solenoid valve mounting portion 240 Water stop lid P Piping T Turning tool WL Wall surface

Claims (12)

A main body having a main flow path that communicates with a water intake port to a water feed port for the flow of cleansing water and an opening/closing mechanism that opens and closes the main flow path, and a sensor that is arranged on the main body or the upper lid of the toilet to detect the user. and an internal type unit having a drive control section for controlling the driving of the opening/closing mechanism based on a detection signal of the sensor, and the cleaning water is passed by opening the main flow path by opening the opening/closing mechanism. A method for refurbishing an automatic flushing device for flushing and automatically flushing a toilet bowl, comprising:
The opening/closing mechanism is configured by attaching a main solenoid valve to an attachment opening provided in the middle of the flow path of the main flow path,
a step of disconnecting the wiring connected to the internal mold unit to stop functioning, or a step of disconnecting the wiring and then removing all or part of the internal mold unit;
removing the main solenoid valve from the mounting opening;
a step of sealing the mounting opening by fixing a waterproof lid to the mounting opening;
removing a predetermined portion of the main flow path downstream of the mounting opening;
A step of installing a main flow passage incorporating tool for restoring the flow passage and mounting an electromagnetic valve for opening and closing the flow passage at a position in the main flow passage from which the predetermined portion has been removed;
a step of attaching the solenoid valve to the main flow passage assembly device directly or via an adapter;
An external unit having a second sensor for sensing a user and a second drive control section for controlling the drive of the electromagnetic valve according to a sensing signal of the second sensor is arranged on the top cover. and a fixing step. A main body having a main flow path that communicates with a water intake port to a water feed port for the flow of cleansing water and an opening/closing mechanism that opens and closes the main flow path, and a sensor that is arranged on the main body or the upper lid of the toilet to detect the user. and an internal type unit having a drive control section for controlling the driving of the opening/closing mechanism based on a detection signal of the sensor, and the cleaning water is passed by opening the main flow path by opening the opening/closing mechanism. A method for refurbishing an automatic flushing device for flushing and automatically flushing a toilet bowl, comprising:
The open/close mechanism communicates with the cylinder chamber through a differential pressure-moving piston valve arranged in the cylinder chamber of the main body and a first opening having one end formed in the wall of the cylinder chamber. a secondary flow channel having the other end communicating with the primary flow channel through a second opening formed at a position downstream of the position where the piston valve is arranged in the primary flow channel; a sub-solenoid valve for opening and closing the path,
a step of disconnecting the wiring connected to the internal mold unit to stop functioning, or a step of disconnecting the wiring and then removing all or part of the internal mold unit;
a step of removing the piston valve from the cylinder chamber after removing the sealing lid sealing the opening end portion of the cylinder chamber from the body portion;
a step of inserting an electromagnetic valve for opening and closing the main flow path into the cylinder chamber directly or via an adapter, attaching the electromagnetic valve to the main body, and sealing the open end of the cylinder chamber; ,
An external unit having a second sensor for sensing a user and a second drive control section for controlling the drive of the electromagnetic valve according to a sensing signal of the second sensor is arranged on the top cover. and a fixing step. The solenoid valve used in the method for refurbishing an automatic washing device according to claim 1 or claim 2,
a cylindrical base portion formed using a metal material and having a male screw portion on the outer peripheral portion;
a solenoid portion fixed to the first end of the base portion via a fixing cap;
a valve portion held inside the base portion and protruding from a second end portion;
The valve portion includes a flow path that communicates from an inflow port to an outflow port to flow the cleaning water, a differential pressure movable diaphragm valve that opens and closes the flow path, and one end of which moves the diaphragm valve. an exhaust pressure drain passage that communicates with the valve box serving as a space and that the other end communicates with the communication passage at a position downstream of the position where the diaphragm valve is arranged; and a movable iron core of the solenoid portion. a pilot valve that opens and closes the exhaust pressure drain passage by connecting a valve body to the exhaust pressure drain passage; A first seal portion is fitted on a side closer to the base portion and a second seal portion is fitted on a side farther from the base portion as a member that seals with the inner peripheral portion of the mounting target,
The exhaust pressure drain channel has an outer peripheral channel formed in an outer peripheral portion between the first seal portion and the second seal portion in the valve portion,
The outer peripheral passage communicates with the valve box with the pilot valve interposed therebetween, and communicates with the communication passage at a position downstream of a position where the diaphragm valve is disposed. A solenoid valve characterized by: 4. The solenoid valve according to claim 3, wherein the fixing cap has a jig mounting portion for detachably mounting a tool connecting jig for connecting the turning tool in a position sandwiching the solenoid portion. 5. The electromagnetic valve according to claim 4, wherein the jig mounting portion is provided also as a fixing groove portion for fixing the solenoid portion to the fixing cap. Wall portions formed in the axial direction at both ends in the circumferential direction of the fixed groove serve as turning force acting portions that receive the turning force of the tool connecting jig turned by the turning tool. 6. A solenoid valve according to item 5. The solenoid valve according to any one of claims 4 to 6, wherein the fixed cap is formed using a resin material. The tool connection jig detachably attached to the jig attachment portion of the solenoid valve according to any one of claims 4 to 7,
It has a leg portion detachably attached to a jig attachment portion provided on a fixing cap of the electromagnetic valve in an arrangement sandwiching the solenoid portion of the solenoid valve at the center, and the leg portion is attached to the fixing cap. A tool connecting jig, comprising a connecting portion for connecting the rotating tool so that the axis of the electromagnetic valve and the axis of the rotating tool are aligned. The main flow passage incorporating tool used in the method of refurbishing an automatic washing device according to claim 1,
a channel portion serving as a channel in place of the predetermined portion removed in the main channel;
and an electromagnetic valve mounting portion provided in the middle of the flow path of the flow path portion to which the electromagnetic valve is mounted. The electromagnetic valve mounting portion is formed in a bottomed cylindrical shape into which the electromagnetic valve can be inserted, and has a female screw portion on the inner circumference that can be screwed into a male screw portion provided on the outer peripheral portion of the electromagnetic valve. owned by the Department,
In the inner peripheral portion, when the solenoid valve is fixed at a predetermined position, both the first seal portion and the second seal portion fitted to the outer peripheral portion of the solenoid valve are brought into close contact with each other for sealing. and an upstream opening that is formed through the first sealing surface toward the bottom surface and communicates with the upstream side of the flow path,
In the bottom portion, a downstream opening is formed through the center in the radial direction and communicates with the downstream side of the flow path portion, and the solenoid valve is fixed at a predetermined position around the downstream opening. 10. The main flow path incorporating device according to claim 9, further comprising a second sealing surface for closely contacting a tip seal portion provided at the tip of the solenoid valve when the solenoid valve is in a closed state. The adapter used in the method for refurbishing an automatic cleaning device according to claim 1 or claim 2,
A female threaded portion having a male threaded portion on an outer peripheral portion that can be screwed into a female threaded portion provided on an object to be attached, and a female threaded portion that can be screwed into a male threaded portion provided on an outer wall of the electromagnetic valve. on the inner circumference,
A seal portion is fitted in the outer peripheral portion as a member for sealing with the attachment target,
In the inner peripheral portion, when the solenoid valve is fixed at a predetermined position, there is a seal surface that seals by bringing both the first seal portion and the second seal portion provided on the solenoid valve into close contact. An adapter, characterized in that it is provided with: A main body having a main flow path that communicates with a water intake port to a water feed port for the flow of cleansing water and an opening/closing mechanism that opens and closes the main flow path, and a sensor that is arranged on the main body or the upper lid of the toilet to detect the user. and an internal type unit having a drive control section for controlling the driving of the opening/closing mechanism based on a detection signal of the sensor, and the cleaning water is passed by opening the main flow path by opening the opening/closing mechanism. A method for refurbishing an automatic flushing device for flushing and automatically flushing a toilet bowl, comprising:
a step of disconnecting the wiring connected to the internal mold unit to stop functioning, or a step of disconnecting the wiring and then removing all or part of the internal mold unit;
An external unit having a second sensor for sensing a user and a second drive control section for controlling the driving of the opening/closing mechanism according to a sensing signal of the second sensor is arranged on the top cover. A method of retrofitting an automatic cleaning device, comprising:

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