WO2021206075A1 - Notification device and fluid processing device - Google Patents

Abstract

This notification device, which provides notification of a replacement timing of a consumable member in a fluid processing device, comprises: a first rotary body that, in a state of use, is disposed inside a flow passage of the fluid processing device and rotates using the flow of a fluid inside the flow passage as a power source; a second rotary body that rotates on the basis of the rotation of the first rotary body; a reducer that reduces the rotation speed of the first rotary body and transmits the rotation to the second rotary body; a replacement notification unit provided to the second rotary body; and a determination unit that is provided in a first direction while facing the second rotary body, wherein the replacement notification unit rotates along with the second rotary body and, when a replacement timing arrives, matches the determination unit in the first direction.

Description

Notification device and fluid processing device

The present invention relates to, for example, a notification device and a fluid treatment device for notifying the user of the replacement time of consumable parts in the fluid treatment device.

Conventionally, a water treatment device for purifying tap water is known (see Patent Document 1). This water treatment device has a purifying agent for removing impurities from tap water.

Such a purifying agent is a consumable part and gets dirty with use. Therefore, in order to maintain the performance of the water treatment apparatus in a desired state, the consumable parts are replaced after being used for a predetermined period of time.

For this purpose, the above-mentioned water treatment device has a means for notifying the user when to replace the purifying agent. Specifically, this water treatment device has a constant flow valve for making the flow rate of tap water flowing into the water treatment device constant, and a pressure switch for detecting the pressure of tap water flowing into the constant flow valve. ..

Then, the above-mentioned water treatment device detects the time when the pressure of tap water flowing into the constant flow valve is equal to or higher than a predetermined value by the pressure switch, and the user sets the replacement time of the purifying agent based on the detected time. Notify information to make a decision.

Jitsukaisho 60-123628

By the way, the water treatment apparatus disclosed in Patent Document 1 as described above has a pressure sensor for detecting the pressure of tap water flowing into the constant flow valve. Such a pressure sensor is expensive, and there is a possibility that the cost of the means (notification device) for notifying the replacement time, and thus the water treatment device, will increase.

An object of the present invention is to provide a notification device and a fluid treatment device capable of notifying the user of the replacement time of consumable parts incorporated in the water treatment device at a low cost.

The notification device according to the present invention is
It is a notification device that notifies the replacement time of consumable members in the fluid processing device.
In use, a first rotating body that is placed in the flow path of the fluid processing device and rotates using the flow of fluid in the flow path as a power source.
A second rotating body that rotates based on the rotation of the first rotating body,
A speed reducer that decelerates the rotation of the first rotating body and transmits it to the second rotating body,
The exchange notification unit provided on the second rotating body and
A determination unit provided so as to face the second rotating body in the first direction,
With
The exchange notification unit rotates together with the second rotating body, and when the exchange time comes, it coincides with the determination unit in the first direction.

The fluid processing apparatus according to the present invention is
The flow path through which the fluid flows and
A filter provided in the flow path that filters the fluid,
The above-mentioned notification device and the above-mentioned notification device are provided.

According to the present invention, it is possible to provide a notification device and a fluid treatment device for notifying the replacement time of consumable parts incorporated in the water treatment device at low cost.

FIG. 1 is a schematic view of a fluid processing apparatus according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view of the notification device according to the first embodiment. FIG. 3 is a perspective view of the impeller. FIG. 4 is a plan view of the gear. FIG. 5 is a plan view of the final gear. FIG. 6 is a plan view of the final gear for explaining the modification 1 of the notification unit. Figure 7A is a view for explaining how to use the notification device is a A ₁ arrow view of FIG. Figure 7B is a view for explaining how to use the notification device is a A ₁ arrow view of FIG. Figure 7C is a view for explaining how to use the notification device is a A ₁ arrow view of FIG. Figure 7D is a view for explaining how to use the notification device provided with a first modification of the determination unit, it is A ₁ arrow view of FIG. Figure 7E is a view for explaining how to use the notification device provided with a second modification of the determination unit, it is A ₁ arrow view of FIG. FIG. 8 is a cross-sectional view of the notification device according to the second embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The notification device and the fluid processing device according to the embodiment described later are examples of the notification device and the fluid processing device according to the present invention, and the present invention is not limited to the embodiment.

[Embodiment 1]
Hereinafter, the fluid processing device 1 and the notification device 2 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 7C.

<Fluid processing equipment>
FIG. 1 is a schematic view of the fluid processing apparatus 1. The fluid treatment device 1 is, for example, a water treatment device. The fluid treatment device 1 is not limited to the water treatment device. For example, the fluid treatment device 1 may be a water treatment device that removes impurities (chlorine and the like) contained in the water, which is the fluid to be treated. Further, it may be a water treatment device that softens hard water, and the fluid to be treated may be drinking water or may not be drinking water. The fluid to be treated may be, for example, domestic wastewater or industrial wastewater.

The fluid processing device 1 has a pipe 11, a filter 12, and a notification device 2.

(Plumbing)
The pipe 11 has a cylindrical shape and defines a flow path through which water flows. In the case of the present embodiment, the pipe 11 has a front side pipe 111 and a rear side pipe 112.

The front pipe 111 connects the water pipe 13 and the filter 12. The front pipe 111 defines the front flow path 113, which is a flow path between the water pipe 13 and the filter 12.

The front side pipe 111 has a front side first pipe 111a and a front side second pipe 111b.

The front first pipe 111a connects the water pipe 13 and the notification device 2. The front side first pipe 111a defines the front side first flow path 113a.

The first end of the front first pipe 111a (the end on the upstream side in the direction of fluid flow) is connected to the water pipe 13. The second end of the front first pipe 111a (the end on the downstream side in the fluid flow direction) is connected to the filter 12. The tap water discharged from the water pipe 13 (hereinafter, simply referred to as “water”) flows into the filter 12 through the front first pipe 111a (front first flow path 113a).

The front second pipe 111b connects the notification device 2 and the filter 12. The front side second pipe 111b defines the front side second flow path 113b.

The first end (upstream end) of the front second pipe 111b is connected to the notification device 2. The second end (downstream end) of the front second pipe 111b is connected to the filter 12. The water flowing out from the notification device 2 flows through the front side second pipe 111b (front side second flow path 113b) and flows into the filter 12.

The rear pipe 112 connects the filter 12 and the faucet 14. The rear pipe 112 defines a rear flow path 114, which is a flow path between the filter 12 and the faucet 14. The rear pipe 112 has a first end portion and a second end portion.

The first end of the rear pipe 112 is the end on the upstream side in the direction in which the fluid (treated water in the case of this embodiment) flows. The first end of the rear pipe 112 is connected to the filter 12. The second end of the rear pipe 112 is the end on the downstream side in the direction in which the fluid (treated water in the case of this embodiment) flows. The second end of the rear pipe 112 is connected to the faucet 14.

The water filtered by the filter 12 becomes treated water and flows out from the filter 12. Then, the treated water is discharged from the faucet through the rear flow path 114.

(filter)
The filter 12 corresponds to an example of consumable parts. The filter 12 is, for example, an ion exchange resin filter that removes calcium ions and magnesium ions from water, or a dechlorination filter that removes chlorine from water. The type of filter is not limited to the case of this embodiment. The filter may be a variety of filters that remove substances from the fluid.

(Notification device)
The notification device 2 is a device for notifying the user of the replacement time of the filter 12, which is a consumable member in the fluid processing device 1.

Hereinafter, in explaining the structure of the notification device 2 according to the present embodiment, the Cartesian coordinate system (X, Y, Z) shown in FIGS. 2 to 7C will be used.

The X direction corresponds to the left-right direction in the usage state of the notification device 2. Further, the X direction corresponds to the direction in which the fluid (in the case of this embodiment, water) flows inside the notification device 2. The + side in the X direction corresponds to the direction from the upstream to the downstream. The X direction-side corresponds to the direction from the downstream to the upstream.

The Y direction corresponds to the front-back direction in the usage state of the notification device 2. The + side in the Y direction corresponds to the rear side. The Y direction-side corresponds to the front side. The X direction and the Y direction may be interchanged.

The Z direction corresponds to the vertical direction (top-bottom direction) in the usage state of the notification device 2. The + side (plus side) in the Z direction corresponds to the upper side, and the-side (minus side) in the Z direction corresponds to the lower side. The Z direction is also the height direction of the notification device 2. The Z direction is not limited to the vertical direction (top-bottom direction) in the used state.

As shown in FIG. 1, the notification device 2 is provided between the front side first pipe 111a and the front side second pipe 111b.

Specifically, the notification device 2 includes a housing 20, a first support shaft 21, a second support shaft 22, an impeller 23, a speed reducer 3, a replacement notification unit 4, a replacement notice unit 5, and a replacement warning unit 5. A determination unit 6 is provided.

(housing)
The housing 20 is made of synthetic resin. The housing 20 is, for example, a cube or a rectangular parallelepiped box shape and has an accommodating portion 201. Specifically, the housing 20 has a bottom plate portion 202, a side plate portion 203, and a top plate portion 204.

The bottom plate portion 202 is made of synthetic resin and has a rectangular (substantially square in the case of this embodiment) plate shape. The bottom plate portion 202 has a first side surface (upper side surface) which is a side surface on the + side in the Z direction. The bottom plate portion 202 has a lower first support portion 202a and a lower second support portion 202b on the upper side surface.

The lower first support portion 202a is composed of recesses with an open upper side. The lower first support portion 202a supports the second end portion (lower end portion) of the first support shaft 21. The lower second support portion 202b is composed of a recess having an opening on the upper side. The lower second support portion 202b supports the second end portion (lower end portion) of the second support shaft 22.

The side plate portion 203 is made of synthetic resin and has a cylindrical shape with a rectangular cross section (in the case of this embodiment, a substantially square shape). The side plate portion 203 has a first end portion (upper end portion) which is an end portion on the + side in the Z direction and a second end portion (lower end portion) which is an end portion on the − side in the Z direction.

In the case of this embodiment, the side plate portion 203 is composed of four plates combined in a cylindrical shape. The cross section of the side plate portion 203 means a cross section when the side plate portion 203 is cut in a plane perpendicular to the Z direction (that is, an XY plane).

The side plate portion 203 has an inflow port 203a and an outflow port 203b at two positions facing each other in the X direction. In the case of the present embodiment, the inflow port 203a and the outflow port 203b are provided on the same straight line parallel to the X direction. However, the arrangement relationship between the inflow port 203a and the outflow port 203b is not limited to the case of the present embodiment.

The second end (downstream end) of the front first pipe 111a is fixed to the inflow port 203a. A first end portion (upstream end portion) of the front side second pipe 111b is fixed to the outflow port 203b.

The side plate portion 203 is fixed to the upper side surface of the bottom plate portion 202 by fastening parts (for example, bolts and pins). A rubber seal ring 205 is provided between the end surface (lower end surface) of the side plate portion 203 on the second end side and the upper side surface of the bottom plate portion 202. The seal ring 205 is a member for maintaining watertightness between the side plate portion 203 and the bottom plate portion 202.

The top plate part 204 is made of synthetic resin and is transparent as a whole. The top plate portion 204 has a rectangular plate shape (in the case of the present embodiment, a substantially square shape). The top plate portion 204 has a first side surface (upper side surface) which is a side surface on the + side in the Z direction and a second side surface (lower side surface) which is a side surface on the − side in the Z direction.

The top plate portion 204 has an upper first support portion 204a at a position facing the lower first support portion 202a of the bottom plate portion 202 in the Z direction (vertical direction) on the lower side surface. The upper first support portion 204a is composed of a recess having an opening on the lower side. The upper first support portion 204a supports the first end portion (upper end portion) of the first support shaft 21.

The top plate portion 204 has an upper second support portion 204b at a position facing the lower second support portion 202b of the bottom plate portion 202 in the Z direction (vertical direction) on the lower side surface. The upper second support portion 204b is composed of a recess having an opening on the lower side. The upper second support portion 204b supports the first end portion (upper end portion) of the second support shaft 22.

The top plate portion 204 is fixed to the end surface (upper end surface) of the side plate portion 203 on the first end side by fastening parts (for example, bolts and pins).

The space surrounded by the upper side surface of the bottom plate portion 202, the inner peripheral surface of the side plate portion 203, and the lower side surface of the top plate portion 204 as described above is the accommodating portion 201. A first support shaft 21, a second support shaft 22, an impeller 23, and a speed reducer 3 are arranged in the accommodating portion 201.

Further, the accommodating portion 201 is filled with the water flowing in from the inflow port 203a. The water in the accommodating portion 201 flows out from the outflow port 203b. In this way, the accommodating unit 201 constitutes a part of the flow path of the fluid processing device 1. That is, in the case of the present embodiment, the housing 20 defines a part of the flow path of the fluid processing device 1.

(First support shaft)
The first support shaft 21 corresponds to an example of the first shaft, and is a shaft member extending in the Z direction. The first support shaft 21 has a first end portion (upper end portion) which is one end portion in the Z direction and a second end portion (lower end portion) which is the other end portion in the Z direction.

The first support shaft 21 is supported by the housing 20 in a rotatable state. Specifically, the upper end portion of the first support shaft 21 is rotatably supported by the upper first support portion 204a of the top plate portion 204. The lower end portion of the first support shaft 21 is rotatably supported by the lower first support portion 202a of the bottom plate portion 202. The central axis of the first support shaft 21 corresponds to an example of the first central axis.

(Second support shaft)
The second support shaft 22 corresponds to an example of the second shaft, and is a shaft member extending in the Z direction. The second support shaft 22 is provided in a state parallel to the first support shaft 21. The second support shaft 22 has a first end portion (upper end portion) which is one end portion in the Z direction and a second end portion (lower end portion) which is the other end portion in the Z direction.

The second support shaft 22 is supported by the housing 20 in a non-rotatable state. Specifically, the upper end portion of the second support shaft 22 is supported by the upper second support portion 204b of the top plate portion 204. The lower end of the second support shaft 22 is supported by the lower second support portion 202b of the bottom plate portion 202. The central axis of the second support shaft 22 corresponds to an example of the second central axis. The second central axis is parallel to the first central axis.

(Imperial wheel)
The impeller 23 is made of synthetic resin and corresponds to an example of the first rotating body. The impeller 23 is arranged in the flow path of the fluid processing device 1 (in the case of the present embodiment, the accommodating portion 201) in the used state. The impeller 23 rotates using the flow of fluid (water in the case of this embodiment) in the flow path as a power source.

Specifically, the impeller 23 has a base 230 and a plurality of blades 231.

The base 230 has a cylindrical shape with a central hole. The first support shaft 21 is inserted through the central hole of the base 230. The base portion 230 is fixed to the first support shaft 21 in a state of being positioned in the vertical direction with respect to the first support shaft 21. Therefore, when the impeller 23 rotates, the first support shaft 21 also rotates.

The plurality of blades 231 are provided at a plurality of locations on the outer peripheral surface of the base 230. Each of the plurality of blades 231 is curved in a curved shape. Such an impeller 23 rotates about the first support shaft 21 based on the energy of water colliding with the plurality of blades 231.

In the case of the present embodiment, the central axis of the impeller 23 (that is, the first central axis) is perpendicular to the direction in which water flows in the flow path (that is, the X direction) (Z in the case of the present embodiment). The direction) matches. However, the arrangement mode of the impeller 23 is not limited to the arrangement mode of the present embodiment.

For example, the central axis of the impeller 23 may coincide with a direction parallel to the direction in which water flows in the flow path (that is, the X direction). In this case, the notification device 2 may include a mechanism (not shown) for transmitting the rotation of the impeller 23 to the speed reducer 3 described later.

(Decelerator)
The speed reducer 3 reduces the rotation of the impeller 23, which is the first rotating body, and transmits the rotation to the final gear 30f, which is the second rotating body.

Specifically, the speed reducer 3 has the first gear 30a and the second gear in order from the upstream side (impeller 23 side) in the path for transmitting the rotation of the impeller 23 (hereinafter, referred to as the rotation transmission path). It has 30b, a third gear 30c, a fourth gear 30d, a fifth gear 30e, and a final gear 30f.

In the case of the present embodiment, the first gear 30a, the second gear 30b, the third gear 30c, the fourth gear 30d, the fifth gear 30e, and the final gear 30f have the same structure. Hereinafter, for convenience of explanation, the first gear 30a, the second gear 30b, the third gear 30c, the fourth gear 30d, the fifth gear 30e, and the final gear 30f are collectively referred to as a gear 31.

Regarding the structures of the first gear 30a, the second gear 30b, the third gear 30c, the fourth gear 30d, the fifth gear 30e, and the final gear 30f, the following description of the gear 31 may be read as appropriate.

The gear 31 is a so-called double gear made of synthetic resin. The gear 31 has a large-diameter gear portion 32 and a small-diameter gear portion 33.

The large-diameter gear portion 32 has a large-diameter side base portion 320 and a large-diameter side tooth portion 321.

The large diameter side base 320 has a disk shape made of synthetic resin. The large-diameter side base 320 has a first side surface (upper side surface) which is one surface in the axial direction of the gear 31 and a second side surface (lower side surface) which is the other surface in the axial direction. The axial direction of the gear 31 coincides with the Z direction. The large-diameter side base 320 has a central hole 311 in the central portion that penetrates the large-diameter side base 320 in the axial direction.

The large-diameter side tooth portion 321 is composed of a plurality of teeth 322 provided on the outer peripheral surface of the large-diameter side base portion 320. Each of the plurality of teeth 322 is made of synthetic resin and is arranged through a gap in the circumferential direction. In the case of the present embodiment, each of the plurality of teeth 322 is a so-called flat tooth cut parallel to the central axis of the gear 31.

The small diameter gear portion 33 is provided integrally with the large diameter gear portion 32 on the upper side surface of the large diameter gear portion 32. The small-diameter gear portion 33 has a small-diameter side base portion 330 and a small-diameter side tooth portion 331.

The small diameter side base 330 has a disk shape made of synthetic resin. The small diameter side base 330 has a first side surface (upper side surface) which is one surface in the axial direction of the gear 31 and a second side surface (lower side surface) which is the other surface in the axial direction.

The lower side surface of the small diameter side base 330 is connected to the upper side surface of the large diameter side base 320. The small-diameter side base 330 has a central hole 311 in the central portion that penetrates the small-diameter side base 330 in the axial direction.

The small diameter side tooth portion 331 is composed of a plurality of teeth 332 provided on the outer peripheral surface of the small diameter side base portion 330. Each of the plurality of teeth 332 is made of synthetic resin and is arranged through a gap in the circumferential direction. In the case of the present embodiment, each of the plurality of teeth 332 is a so-called flat tooth cut parallel to the central axis of the gear 31. The diameter of the tooth tip circle of the small diameter gear portion 33 is smaller than the diameter of the tooth tip circle of the large diameter gear portion 32.

The number of teeth 322 in the large-diameter side tooth portion 321 and the number of teeth 332 in the small-diameter side tooth portion 331 are appropriately set according to the reduction ratio of the speed reducer 3.

Next, the arrangement of the first gear 30a, the second gear 30b, the third gear 30c, the fourth gear 30d, the fifth gear 30e, and the final gear 30f will be described. The first gear 30a, the second gear 30b, the third gear 30c, the fourth gear 30d, the fifth gear 30e, and the final gear 30f each have the same configuration as the gear 31.

The first gear 30a is provided on the most upstream side in the rotation transmission path. The first support shaft 21 is inserted through the center hole 311 of the first gear 30a. That is, the central axis of the first gear 30a and the central axis of the impeller 23 are the same.

The first gear 30a is fixed to the first support shaft 21 in a state of being positioned in the vertical direction with respect to the first support shaft 21. Therefore, when the first support shaft 21 rotates, the first gear 30a also rotates.

The second gear 30b is provided on the downstream side of the first gear 30a in the rotation transmission path. The second support shaft 22 is inserted through the center hole 311 of the second gear 30b. The second gear 30b is positioned in the vertical direction with respect to the second support shaft 22. Further, the second gear 30b is supported by the second support shaft 22 in a rotatable state.

The large diameter side tooth portion 321 of the second gear 30b meshes with the small diameter side tooth portion 331 of the first gear 30a. Therefore, the rotation of the first gear 30a is decelerated based on the ratio of the number of teeth of the large-diameter side tooth portion 321 in the second gear 30b to the number of teeth of the small-diameter side tooth portion 331 in the first gear 30a. It is transmitted to the second gear 30b.

The third gear 30c is provided on the downstream side of the second gear 30b in the rotation transmission path. The first support shaft 21 is inserted through the center hole 311 of the third gear 30c. The central shaft of the third gear 30c and the central shaft of the first gear 30a are the same.

The third gear 30c is positioned in the vertical direction with respect to the first support shaft 21. The third gear 30c is rotatable with respect to the first support shaft 21.

The large diameter side tooth portion 321 of the third gear 30c meshes with the small diameter side tooth portion 331 of the second gear 30b. Therefore, the rotation of the second gear 30b is decelerated based on the ratio of the number of teeth of the large-diameter side tooth portion 321 in the third gear 30c to the number of teeth of the small-diameter side tooth portion 331 in the second gear 30b. It is transmitted to the three gears 30c.

The fourth gear 30d is provided on the downstream side of the third gear 30c in the rotation transmission path. The second support shaft 22 is inserted through the center hole 311 of the fourth gear 30d. The central axis of the fourth gear 30d and the central axis of the second gear 30b are the same.

The fourth gear 30d is positioned in the vertical direction with respect to the second support shaft 22. Further, the fourth gear 30d is supported by the second support shaft 22 in a rotatable state.

The large diameter side tooth portion 321 of the fourth gear 30d meshes with the small diameter side tooth portion 331 of the third gear 30c. Therefore, the rotation of the third gear 30c is decelerated based on the ratio of the number of teeth of the large-diameter side tooth portion 321 in the fourth gear 30d to the number of teeth of the small-diameter side tooth portion 331 in the third gear 30c. It is transmitted to the four gears 30d.

The fifth gear 30e is provided on the downstream side of the fourth gear 30d in the rotation transmission path. The first support shaft 21 is inserted through the center hole 311 of the fifth gear 30e. The central axis of the fifth gear 30e and the central axis of the third gear 30c are the same.

The fifth gear 30e is positioned in the vertical direction with respect to the first support shaft 21. The fifth gear 30e is rotatable with respect to the first support shaft 21.

The large diameter side tooth portion 321 of the fifth gear 30e meshes with the small diameter side tooth portion 331 of the fourth gear 30d. Therefore, the rotation of the fourth gear 30d is decelerated based on the ratio of the number of teeth of the large-diameter side tooth portion 321 in the fifth gear 30e to the number of teeth of the small-diameter side tooth portion 331 in the fourth gear 30d. It is transmitted to the five gears 30e.

The final gear 30f corresponds to an example of the second rotating body, and is provided on the most downstream side (that is, the side farthest from the impeller 23) in the rotation transmission path. The second support shaft 22 is inserted through the center hole 311 of the final gear 30f. The central axis of the final gear 30f and the central axis of the fourth gear 30d are the same.

The final gear 30f is positioned in the vertical direction with respect to the second support shaft 22. Further, the final gear 30f is supported by the second support shaft 22 in a rotatable state.

The large diameter side tooth portion 321 of the final gear 30f meshes with the small diameter side tooth portion 331 of the fifth gear 30e. Therefore, the rotation of the fifth gear 30e is decelerated based on the ratio of the number of teeth of the large-diameter side tooth portion 321 in the final gear 30f to the number of teeth of the small-diameter side tooth portion 331 in the fifth gear 30e, and the final gear is reduced. It is transmitted to 30f.

The final gear 30f has a ring-shaped first region 301 (see FIG. 5) on the upper side surface of the large-diameter side base 320. The first region 301 is a ring-shaped region surrounding the small-diameter gear portion 33 on the upper side surface of the final gear 30f. The exchange notification unit 4, which will be described later, is provided in the first area 301.

(Additional notes regarding reducers)
The speed reducer 3 having the above configuration decelerates the rotation of the impeller 23 at a predetermined reduction ratio and transmits the rotation to the final gear 30f which is the second rotating body. The reduction ratio of the speed reducer 3 may be set according to the properties of the fluid to be processed.

When one replacement notification unit 4 (see FIG. 5) is provided in the final gear 30f as in the present embodiment, the notification device 2 sets the replacement time of the filter 12 once when the final gear 30f makes one rotation. Notify times. In this case, if the time required for the final gear 30f to make one rotation is short, the replacement time of the filter 12 becomes early. On the other hand, if the time required for the final gear 30f to make one rotation is long, the replacement time of the filter 12 is delayed.

Due to the nature of the fluid to be processed, if the filter 12 deteriorates quickly, the filter 12 needs to be replaced earlier. In this case, the reduction ratio of the speed reducer 3 is set to be relatively small, and the time required for the final gear 30f to make one rotation is set to be relatively short.

Due to the nature of the fluid to be processed, if the filter 12 deteriorates slowly, the replacement time of the filter 12 will be delayed. In this case, the reduction ratio of the speed reducer 3 is set to be relatively large, and the time required for the final gear 30f to make one rotation is set to be relatively long.

As described above, in the case of the present embodiment, by adjusting the reduction ratio of the speed reducer 3 according to the properties of the fluid to be processed, it is possible to notify the replacement time of the filter 12 according to the fluid to be processed.

(Exchange notification section)
The replacement notification unit 4 is provided on the surface (upper side surface in the case of the present embodiment) of the final gear 30f, which is the second rotating body. Specifically, the replacement notification unit 4 is provided at one location in the circumferential direction in the first region 301 of the final gear 30f.

In the case of the present embodiment, the exchange notification unit 4 is provided on the upper side surface of the ring-shaped seal 41 attached to the first area 301. The exchange notification unit 4 is composed of marks provided on the upper side surface of the seal 41. The exchange notification unit 4 has a pattern different from other parts on the upper side surface of the seal 41. Such an exchange notification unit 4 is a mark for making the user recognize that the exchange time of the filter 12 has come.

The exchange notification unit 4 may be a mark directly provided in the first area 301, for example, by printing or painting. Further, in the case of the present embodiment, the replacement notification unit 4 is provided in the final gear 30f of the speed reducer 3. However, the replacement notification unit 4 may be provided on a rotating body other than the final gear 30f. For example, the replacement notification unit 4 may be provided on a rotating body (not shown) that rotates in synchronization with the final gear 30f. In this case, this rotating body corresponds to the second rotating body.

Further, in the case of the present embodiment, the exchange notification unit 4 is provided only in one place of the first area 301. Therefore, the notification device 2 can notify one replacement time for one rotation of the final gear 30f. However, the exchange notification unit 4 may be provided at a plurality of locations in the first region 301.

Here, a modified example of the exchange notification unit 4 will be described. FIG. 6 shows an example of a modification of the exchange notification unit 4. In the case of this modification, the exchange notification unit 4 is provided at two locations in the first region 301. Specifically, the exchange notification units 4 are provided at two locations displaced by 180 ° from each other in the circumferential direction of the first region 301. In the case of such a modification, it is possible to notify the replacement time twice for one rotation of the final gear 30f.

Although not shown, the number of exchange notification units may be three or more. Further, the position of the exchange notification unit is not limited to the upper side surface of the second rotating body. For example, the exchange notification unit may be provided on the outer peripheral surface of the second rotating body. In this case, the outer peripheral surface of the second rotating body corresponds to an example of the surface of the second rotating body.

(Exchange notice)
The replacement notice unit 5 is provided on the surface (upper side surface in the case of the present embodiment) of the final gear 30f, which is the second rotating body. Specifically, the replacement notice unit 5 is provided at a position adjacent to the replacement notification unit 4 in the first region 301 of the final gear 30f. The replacement notice unit 5 is provided in front of the replacement notification unit 4 in the rotation direction of the final gear 30f.

In the case of the present embodiment, the exchange notice unit 5 is provided at a position adjacent to the exchange notification unit 4 on the seal 41. The exchange notice unit 5 is composed of marks having a pattern different from that of the exchange notification unit 4. Such a replacement notice unit 5 is a mark for making the user recognize that the replacement time of the filter 12 is approaching.

The replacement notice unit 5 may be a mark directly provided in the first area 301, for example, by printing or painting. Further, although not shown, in the case of the modified example of the exchange notification unit 4 shown in FIG. 6, an exchange notice unit 5 may be provided for each of the two exchange notification units 4. The replacement notice unit 5 may be omitted.

(Judgment unit)
The determination unit 6 is used when the user determines when to replace the filter 12. The user recognizes that the replacement time of the filter 12 has arrived when the determination unit 6 and the exchange notification unit 4 coincide with the predetermined direction (first direction). In the case of this embodiment, the predetermined direction is the vertical direction. In other words, the predetermined direction is a direction parallel to the first central axis.

Such a determination unit 6 is provided in a state of facing the surface of the final gear 30f (upper side surface in the case of the present embodiment) in the vertical direction. Specifically, a plate 60 is provided on the upper side surface of the top plate portion 204 of the housing 20.

The plate 60 has a plate shape having the same shape as the top plate portion 204 in a plan view. Such a plate 60 is opaque as a whole, and is fixed to the upper side surface of the top plate portion 204 by a fixing means such as an adhesive. The plan view means that the plate 60 is viewed from one side in the Z direction (for example, the + side in the Z direction).

The determination unit 6 is composed of a slit 61 (see FIGS. 2 and 7A to 7C) provided in a part of the plate 60. The determination unit 6 faces the first region 301 of the final gear 30f in the vertical direction. Since the top plate portion 204 is entirely transparent, the user can visually recognize the first region 301 from above the notification device 2 via the determination unit 6.

When the first region 301 rotates with the rotation of the final gear 30f, the region facing the determination unit 6 in the vertical direction moves in the first region 301.

The structure of the determination unit is not limited to the case of this embodiment. For example, the determination unit may be provided directly on the upper side surface of the top plate portion of the housing. In this case, the top plate portion may have a transparent portion (first portion) corresponding to the determination portion and an opaque portion other than the first portion (second portion). The user can visually recognize a part of the first region 301 from above the notification device 2 via the portion corresponding to the determination unit. Further, the determination unit may be, for example, a mark such as a line or an arrow provided on the top plate portion of the housing. Further, the determination portion may be, for example, a convex portion or a concave portion provided on the top plate portion of the housing.

(Modification example 1 of the judgment unit)
A modified example 1 of the determination unit will be described with reference to FIG. 7D. In the case of this modification, the determination unit 6B is composed of a slit 61 similar to the determination unit 6 described above, and a determination mark 62a provided around the slit 61 on the upper side surface of the plate 60.

Specifically, in the case of this modification, the determination mark 62a is a straight line provided on the same straight line as the slit 61 in the longitudinal direction of the slit 61 (in the case of the present embodiment, the X direction).

The determination mark 62a has a first end portion (X direction + side end portion) which is an end portion on the side closer to the slit 61 and a second end portion (X direction − side) which is an end portion on the side farther from the slit 61. End) and. The first end portion of the determination mark 62a coincides with the first end edge (end edge on the X direction-side) of the slit 61.

In the case of this modification, the determination mark 62a is simply a straight line, but may be, for example, an arrow having an arrow at the first end portion. The determination mark 62a may be provided on the upper side surface of the plate 60 by printing or painting, or may be a convex portion or a concave portion integrally provided on the plate 60.

Note that the plate 60 may be omitted in this modification. In the case where the plate 60 is omitted, the determination portion may be configured by the determination mark 62a provided directly on the upper side surface of the top plate portion 204 in the housing 20. In this case, the determination mark 62a may be a mark directly provided on the top plate portion by printing, painting, or the like, or may be a convex portion or a concave portion integrally provided on the top plate portion 204.

(Modification example 2 of the judgment unit)
A modified example 2 of the determination unit will be described with reference to FIG. 7E. In the case of this modification, the determination unit 6C is composed of a slit 61 similar to the determination unit 6 described above, and a determination mark 62b provided on the upper side surface of the top plate portion 204 of the housing 20.

Specifically, in the case of this modification, the determination mark 62b is a straight line provided on the upper side surface of the top plate portion 204 in a region facing the slit 61 in the vertical direction (hereinafter, referred to as “opposing region”). be. The determination mark 62b is a straight line provided on the same straight line as the slit 61 in the longitudinal direction of the slit 61 (in the case of this embodiment, the X direction).

Further, the determination mark 62b is provided at the center position of the slit 61 in the lateral direction (in the case of the present embodiment, the Y direction) in the facing region.

The determination mark 62b has a first end portion that is an end portion on one side (X direction + side) in the X direction and a second end portion that is an end portion on one side (X direction − side) in the X direction. Have. The first end portion of the determination mark 62b coincides with the second end edge (X direction + side end edge) of the slit 61.

In the case of this modification, the determination mark 62b is simply a straight line, but may be, for example, an arrow having an arrow at the second end. In this modification, the plate 60 may be omitted. In this case, the determination unit may be configured by the determination mark 62b. The determination mark 62b may be a mark directly provided on the top plate portion 204 by printing, painting, or the like, or may be a convex portion or a concave portion integrally provided on the top plate portion 204.

(How to use the notification device)
Next, how to use the notification device 2 will be described. First, the user sets the exchange notification unit 4 in the state shown in FIG. 7A. In the state shown in FIG. 7A, replacement notification unit 4 is positioned on the front side in the rotational direction of the final gear 30f than the determination unit 6 (direction shown in FIG. 7A by arrow A _2). The state shown in FIG. 7A is referred to as an initial state of the notification device 2 (hereinafter, simply referred to as “initial state”).

Although not shown, the notification device 2 may include means for setting the state of the notification device 2 to the initial state (hereinafter, referred to as "initialization means"). The initialization means sets the state of the notification device 2 to the initial state based on the operation of the user. After replacing the old filter 12 with the new filter 12, the user sets the state of the notification device 2 to the initial state by operating the initialization means. The use of the notification device 2 is then disclosed.

When the user opens the faucet 14, water flows from the water pipe 13 toward the faucet 14. This water is treated by the filter 12 and flows out of the faucet 14. At this time, the impeller 23 rotates according to the flow rate of the water that has passed through the notification device 2. The rotation of the impeller 23 is decelerated by the speed reducer 3 and transmitted to the final gear 30f of the speed reducer 3. Then, together with the final gear 30f, the exchange notification unit 4 and the exchange notice unit 5 provided on the final gear 30f rotate.

When the flow rate of water that has passed through the notification device 2 reaches a predetermined amount, as shown in FIG. 7B, the replacement notice unit 5 and the determination unit 6 coincide with each other in the vertical direction. In other words, the replacement advance notice unit 5 rotates together with the final gear 30f and overlaps the determination unit 6 in the vertical direction before the replacement time of the filter 12 by a predetermined time. The vertical direction corresponds to an example of the first direction.

In this state, the user can visually recognize the exchange notice unit 5 via the determination unit 6. As a result, the user can recognize that the time to replace the filter 12 is approaching. The state shown in FIG. 7B is referred to as a replacement notice state of the notification device 2 (hereinafter, simply referred to as “replacement notice state”).

When water passes through the notification device 2 from the exchange notice state shown in FIG. 7B, the exchange notification unit 4 and the determination unit 6 coincide with each other in the vertical direction as shown in FIG. 7C. In this state, the user can visually recognize the exchange notification unit 4 via the determination unit 6 (slit 61). As a result, the user can recognize that it is time to replace the filter 12.

Note that FIG. 7D is a diagram corresponding to FIG. 7C with respect to the water treatment apparatus provided with the above-described modification unit 1 of the determination unit. In the case of the structure shown in FIG. 7D, when water passes through the notification device 2 from the exchange notice state shown in FIG. 7B, the exchange notification unit 4 and the slit 61 and the determination mark 62a of the determination unit 6B coincide with each other in the vertical direction. ..

In this state, the user can visually recognize the overlap between the exchange notification unit 4 and the determination mark 62a while visually recognizing the exchange notification unit 4 through the slit 61. Therefore, the user can more easily recognize that it is time to replace the filter 12.

Further, FIG. 7E is a diagram corresponding to FIG. 7C with respect to the water treatment apparatus provided with the above-described modification unit 2 of the determination unit. As for the structure shown in FIG. 7E, as in the structure shown in FIG. 7D, the user can more easily recognize that it is time to replace the filter 12.

(Action / effect of this embodiment)
As described above, according to the notification device 2 according to the present embodiment, the user visually recognizes whether or not the exchange notification unit 4 and the determination unit 6 match, and the replacement time of the filter 12 has arrived. It can be determined whether or not it is done. Since the rotation speed of the replacement notification unit 4 (that is, the rotation speed of the final gear 30f) is set according to the properties of the fluid to be processed, the user can recognize an appropriate replacement time of the filter 12. As a result, the maintenance cost of the fluid processing apparatus 1 can be reduced.

Further, in the case of the present embodiment, the notification device 2 includes a replacement notice unit 5. Therefore, the user can determine whether or not the replacement time of the filter 12 is approaching by visually recognizing whether or not the replacement notice unit 5 and the determination unit 6 match. In this way, the user can recognize in advance that the time to replace the filter 12 is approaching.

<Embodiment 2>
The second embodiment according to the present invention will be described with reference to FIG. The notification device 2B according to the present embodiment includes a first unit 7 and a second unit 8.

(First unit)
The first unit 7 includes a first housing 71, a first support shaft 72, an impeller 23, and metal pieces 73a and 73b. The structure of the impeller 23 is the same as that of the first embodiment described above.

(First housing)
The first housing 71 is made of synthetic resin. The first housing 71 has, for example, a rectangular parallelepiped box shape and has a first accommodating portion 710. Specifically, the first housing 71 has a first bottom plate portion 711, a first side plate portion 712, and a first top plate portion 713.

The first bottom plate portion 711 is made of synthetic resin and has a rectangular (substantially square in the case of this embodiment) plate shape. The first bottom plate portion 711 has a first side surface (upper side surface) which is a side surface on the + side in the Z direction. The first bottom plate portion 711 has a lower support portion 711a on the upper side surface.

The lower support portion 711a is composed of a recess with an opening on the upper side. The lower support portion 711a supports the second end portion (lower end portion) of the first support shaft 72.

The first side plate portion 712 is made of synthetic resin and has a cylindrical shape with a rectangular cross section (in the case of this embodiment, a substantially square shape). The first side plate portion 712 has a first end portion (upper end portion) which is an end portion on the + side in the Z direction and a second end portion (lower end portion) which is an end portion on the − side in the Z direction.

In the case of this embodiment, the first side plate portion 712 is composed of four plates combined in a cylindrical shape. The cross section of the first side plate portion 712 means a cross section when the first side plate portion 712 is cut in a plane perpendicular to the Z direction (that is, an XY plane).

The first side plate portion 712 has an inflow port 712a and an outflow port 712b at two positions facing each other in the X direction. In the case of the present embodiment, the inflow port 712a and the outflow port 712b are provided on the same straight line parallel to the X direction. However, the arrangement relationship between the inflow port 712a and the outflow port 712b is not limited to the case of the present embodiment.

The second end (downstream end) of the front first pipe 111a is fixed to the inflow port 712a. A first end portion (upstream end portion) of the front side second pipe 111b is fixed to the outflow port 712b.

The first side plate portion 712 is fixed to the upper side surface of the first bottom plate portion 711 by fastening parts (for example, bolts and pins). A rubber seal ring 205 is provided between the end surface (lower end surface) of the first side plate portion 712 on the second end side and the upper side surface of the first bottom plate portion 711. The seal ring 205 is a member for maintaining watertightness between the first side plate portion 712 and the first bottom plate portion 711.

The first top plate portion 713 is made of synthetic resin and has a rectangular plate shape (in the case of this embodiment, a substantially square shape). The first top plate portion 713 has a first side surface (upper side surface) which is a side surface on the + side in the Z direction and a second side surface (lower side surface) which is a side surface on the − side in the Z direction.

The first top plate portion 713 has an upper support portion 713a at a position facing the lower support portion 711a of the first bottom plate portion 711 in the Z direction (vertical direction) on the lower side surface. The upper support portion 713a is composed of a recess having an opening on the lower side. The upper support portion 713a supports the first end portion (upper end portion) of the first support shaft 72.

The first top plate portion 713 is fixed to the end surface (upper end surface) of the first side plate portion 712 on the first end side by fastening parts (for example, bolts and pins).

The space surrounded by the upper side surface of the first bottom plate portion 711, the inner peripheral surface of the first side plate portion 712, and the lower side surface of the first top plate portion 713 as described above is the first accommodating portion 710. A first support shaft 72, an impeller 23, and metal pieces 73a and 73b are arranged in the first accommodating portion 710.

Further, the first accommodating portion 710 is filled with water flowing in from the inflow port 712a. The water in the first accommodating portion 710 flows out from the outflow port 712b. As described above, the first accommodating portion 710 constitutes a part of the fluid flow path. That is, in the case of the present embodiment, the first housing 71 defines a part of the flow path of the fluid processing apparatus.

(First support shaft)
The first support shaft 72 corresponds to an example of the first shaft, and is a shaft member extending in the Z direction. The first support shaft 72 has a first end portion (upper end portion) which is one end portion in the Z direction and a second end portion (lower end portion) which is the other end portion in the Z direction.

The first support shaft 72 is supported by the first housing 71. Specifically, the upper end portion of the first support shaft 72 is supported by the upper support portion 713a of the first top plate portion 713. The lower end of the first support shaft 72 is supported by the lower support portion 711a of the first bottom plate portion 711. The first support shaft 72 may be rotatable or non-rotatable. The central axis of the first support shaft 72 corresponds to an example of the first central axis.

The impeller 23 is arranged in the flow path of the fluid processing apparatus (in the case of the present embodiment, the first accommodating portion 710) in the used state. The impeller 23 rotates using the flow of fluid (water in the case of this embodiment) in the flow path as a power source. The structure of such an impeller 23 is the same as that of the first embodiment described above.

The impeller 23 is supported by the first support shaft 72. The impeller 23 is positioned in the vertical direction with respect to the first support shaft 72. In the case of this embodiment, the impeller 23 is rotatable with respect to the first support shaft 21.

(piece of metal)
The metal pieces 73a and 73b are made of magnetic metal and are provided on the upper surface of the impeller 23. In the case of the present embodiment, the metal pieces 73a and 73b are provided at two locations on the upper surface of the impeller 23, which are displaced by 180 degrees in the circumferential direction.

(Second unit)
The second unit 8 is arranged above the first unit 7, for example. The second unit 8 includes a second housing 81, a second support shaft 82, a third support shaft 83, a speed reducer 3, a replacement notification unit 4, a replacement notice unit 5, a determination unit 6, and a magnet 84a. , 84b and. The structure of the speed reducer 3, the replacement notification unit 4, the replacement notice unit 5, and the determination unit 6 is the same as that of the first embodiment described above.

(Second housing)
The second housing 81 is made of synthetic resin. The second housing 81 has, for example, a rectangular parallelepiped box shape and has a second housing portion 810. Specifically, the second housing 81 has a second bottom plate portion 811, a second side plate portion 812, and a second top plate portion 813.

The second bottom plate portion 811 is made of synthetic resin and has a rectangular (substantially square in the case of this embodiment) plate shape. The second bottom plate portion 811 has a first side surface (upper side surface) which is a side surface on the + side in the Z direction and a second side surface (lower side surface) which is a side surface on the − side in the Z direction. The second bottom plate portion 811 has a lower first support portion 811a and a lower second support portion 811b on the upper side surface.

The lower first support portion 811a is provided on the same straight line parallel to the lower support portion 711a and the upper support portion 713a of the first housing 71 in the Z direction (vertical direction). The lower first support portion 811a is composed of a recess having an opening on the upper side.

The lower first support portion 811a supports the second end portion (lower end portion) of the second support shaft 82. The lower second support portion 811b is composed of a recess having an opening on the upper side. The lower second support portion 811b supports the second end portion (lower end portion) of the third support shaft 83.

The lower side surface of the second bottom plate portion 811 and the upper side surface of the first top plate portion 713 in the first housing 71 face each other in the vertical direction in a state of contact.

The second side plate portion 812 is made of synthetic resin and has a cylindrical shape with a rectangular cross section (in the case of this embodiment, a substantially square shape). The second side plate portion 812 has a first end portion (upper end portion) which is an end portion on the + side in the Z direction and a second end portion (lower end portion) which is an end portion on the − side in the Z direction. In the case of the present embodiment, the second side plate portion 812 is composed of four plates combined in a cylindrical shape. The cross section of the second side plate portion 812 means a cross section when the second side plate portion 812 is cut in a plane perpendicular to the Z direction (that is, an XY plane).

The second side plate portion 812 is fixed to the upper side surface of the second bottom plate portion 811 by fastening parts (for example, bolts and pins).

The second top plate portion 813 is made of synthetic resin and has a rectangular plate shape (in the case of this embodiment, a substantially square shape). The second top plate portion 813 has a first side surface (upper side surface) which is a side surface on the + side in the Z direction and a second side surface (lower side surface) which is a side surface on the − side in the Z direction.

The second top plate portion 813 has an upper first support portion 813a at a position facing the lower first support portion 811a of the second bottom plate portion 811 in the Z direction (vertical direction) on the lower side surface. The upper first support portion 813a is composed of a recess having an opening on the lower side. The upper first support portion 813a supports the first end portion (upper end portion) of the second support shaft 82.

The second top plate portion 813 has an upper second support portion 813b at a position facing the lower second support portion 811b of the second bottom plate portion 811 in the Z direction (vertical direction) on the lower side surface. The upper second support portion 813b is composed of a recess having an opening on the lower side. The upper second support portion 813b supports the first end portion (upper end portion) of the third support shaft 83.

The second top plate portion 813 is fixed to the end surface (upper end surface) of the second side plate portion 812 on the first end side by fastening parts (for example, bolts and pins).

The space surrounded by the upper side surface of the second bottom plate portion 811 as described above, the inner peripheral surface of the second side plate portion 812, and the lower side surface of the second top plate portion 813 is the second accommodating portion 810. A second support shaft 82, a third support shaft 83, a speed reducer 3, a replacement notification unit 4, a replacement notice unit 5, a determination unit 6, and magnets 84a and 84b are arranged in the second accommodating unit 810.

Such a second accommodating section 810 is a space isolated from the first accommodating section 710. In the case of the present embodiment, the second support shaft 82, the third support shaft 83, the speed reducer 3, the replacement notification unit 4, the replacement notice unit 5, the determination unit 6, and the magnets 84a and 84b are the flow paths of the fluid processing device 1. It is provided outside.

(Second support shaft)
The second support shaft 82 corresponds to an example of the first shaft, and is a shaft member extending in the Z direction. The second support shaft 82 has a first end portion (upper end portion) which is one end portion in the Z direction and a second end portion (lower end portion) which is the other end portion in the Z direction.

The second support shaft 82 is supported by the second housing 81 in a non-rotatable state. Specifically, the upper end portion of the second support shaft 82 is supported by the upper first support portion 813a of the second top plate portion 813. The lower end of the second support shaft 82 is supported by the lower first support portion 811a of the second bottom plate portion 811. The central axis of the second support shaft 82 coincides with the central axis of the first support shaft 72. The central axis of the second support shaft 82 corresponds to an example of the first central axis.

(Third support shaft)
The third support shaft 83 corresponds to an example of the second shaft, and is a shaft member extending in the Z direction. The third support shaft 83 is provided in a state parallel to the second support shaft 82. The third support shaft 83 has a first end portion (upper end portion) which is one end portion in the Z direction and a second end portion (lower end portion) which is the other end portion in the Z direction.

The third support shaft 83 is supported by the second housing 81 in a non-rotatable state. Specifically, the upper end portion of the third support shaft 83 is supported by the upper second support portion 813b of the second top plate portion 813. The lower end of the third support shaft 83 is supported by the lower second support portion 811b of the second bottom plate portion 811. The central axis of the third support shaft 83 corresponds to an example of the second central axis. The second central axis is parallel to the first central axis.

(Decelerator)
The speed reducer 3 reduces the rotation of the impeller 23, which is the first rotating body, and transmits the rotation to the final gear 30f, which is the second rotating body. The structure of such a speed reducer 3 is almost the same as that of the first embodiment described above. Hereinafter, a mode of assembling the speed reducer 3 to the second support shaft 82 and the third support shaft 83 will be described.

The first gear 30a is provided on the most upstream side in the rotation transmission path. A second support shaft 82 is inserted through the center hole 311 of the first gear 30a. The central axis of the first gear 30a and the central axis of the impeller 23 are located on the same straight line.

The first gear 30a is positioned in the vertical direction with respect to the second support shaft 82. The first gear 30a is rotatable with respect to the second support shaft 82.

The second gear 30b is provided on the downstream side of the first gear 30a in the rotation transmission path. A third support shaft 83 is inserted through the center hole 311 of the second gear 30b. The second gear 30b is positioned in the vertical direction with respect to the third support shaft 83. Further, the second gear 30b is supported by the third support shaft 83 in a rotatable state.

The large diameter side tooth portion 321 of the second gear 30b meshes with the small diameter side tooth portion 331 of the first gear 30a. Therefore, the rotation of the first gear 30a is decelerated based on the ratio of the number of teeth of the large-diameter side tooth portion 321 in the second gear 30b to the number of teeth of the small-diameter side tooth portion 331 in the first gear 30a. It is transmitted to the two gears 30b.

The third gear 30c is provided on the downstream side of the second gear 30b in the rotation transmission path. A second support shaft 82 is inserted through the center hole 311 of the third gear 30c. The central shaft of the third gear 30c and the central shaft of the first gear 30a are the same.

The third gear 30c is positioned in the vertical direction with respect to the second support shaft 82. The third gear 30c is rotatable with respect to the second support shaft 82.

The large diameter side tooth portion 321 of the third gear 30c meshes with the small diameter side tooth portion 331 of the second gear 30b. Therefore, the rotation of the second gear 30b is decelerated based on the ratio of the number of teeth of the large-diameter side tooth portion 321 in the third gear 30c to the number of teeth of the small-diameter side tooth portion 331 in the second gear 30b. It is transmitted to the three gears 30c.

The fourth gear 30d is provided on the downstream side of the third gear 30c in the rotation transmission path. A third support shaft 83 is inserted through the center hole 311 of the fourth gear 30d. The central axis of the fourth gear 30d and the central axis of the second gear 30b are the same.

The fourth gear 30d is positioned in the vertical direction with respect to the third support shaft 83. Further, the fourth gear 30d is supported by the third support shaft 83 in a rotatable state.

The large diameter side tooth portion 321 of the fourth gear 30d meshes with the small diameter side tooth portion 331 of the third gear 30c. Therefore, the rotation of the third gear 30c is decelerated based on the ratio of the number of teeth of the large-diameter side tooth portion 321 in the fourth gear 30d to the number of teeth of the small-diameter side tooth portion 331 in the third gear 30c. It is transmitted to the four gears 30d.

The fifth gear 30e is provided on the downstream side of the fourth gear 30d in the rotation transmission path. A second support shaft 82 is inserted through the center hole 311 of the fifth gear 30e. The central axis of the fifth gear 30e and the central axis of the third gear 30c are the same.

The fifth gear 30e is positioned in the vertical direction with respect to the second support shaft 82. The fifth gear 30e is rotatable with respect to the second support shaft 82.

The large diameter side tooth portion 321 of the fifth gear 30e meshes with the small diameter side tooth portion 331 of the fourth gear 30d. Therefore, the rotation of the fourth gear 30d is decelerated based on the ratio of the number of teeth of the large-diameter side tooth portion 321 in the fifth gear 30e to the number of teeth of the small-diameter side tooth portion 331 in the fourth gear 30d. It is transmitted to the five gears 30e.

The final gear 30f corresponds to an example of the second rotating body, and is provided on the most downstream side (that is, the side farthest from the impeller 23) in the rotation transmission path. A third support shaft 83 is inserted through the center hole 311 of the final gear 30f. The central axis of the final gear 30f and the central axis of the fourth gear 30d are the same.

The final gear 30f is positioned in the vertical direction with respect to the third support shaft 83. Further, the final gear 30f is supported by the third support shaft 83 in a rotatable state.

The large diameter side tooth portion 321 of the final gear 30f meshes with the small diameter side tooth portion 331 of the fifth gear 30e. Therefore, the rotation of the fifth gear 30e is decelerated based on the ratio of the number of teeth of the large-diameter side tooth portion 321 in the final gear 30f to the number of teeth of the small-diameter side tooth portion 331 in the fifth gear 30e, and the final gear is reduced. It is transmitted to 30f.

(magnet)
The magnets 84a and 84b are provided on the lower side surface of the first gear 30a. In the case of the present embodiment, the magnets 84a and 84b are provided at two locations on the lower side surface of the first gear 30a, which are displaced by 180 degrees in the circumferential direction.

The magnets 84a and 84b and the metal pieces 73a and 73b form a transmission mechanism 9 that transmits the rotation of the impeller 23, which is the first rotating body, to the speed reducer 3.

When the impeller 23 rotates, the metal pieces 73a and 73b rotate together with the impeller 23. When the metal pieces 73a and 73b rotate, the magnets 84a and 84b rotate so as to be carried around by the metal pieces 73a and 73b. As a result, the first gear 30a rotates together with the magnets 84a and 84b. The rotation of the first gear 30a is reduced by the speed reducer 3 and transmitted to the final gear 30f. Other configurations, actions, and effects of the notification device 2B are the same as those of the notification device 2 in the above-described first embodiment.

(Action / effect of this embodiment)
In the case of the present embodiment having the above configuration, the second support shaft 82, the third support shaft 83, the speed reducer 3, the replacement notification unit 4, the replacement notice unit 5, the determination unit 6, and the magnets 84a and 84b are provided. It is arranged in the second accommodating portion 810 of the second housing 81 provided outside the flow path of the fluid processing apparatus. Therefore, it is possible to improve the work efficiency of replacement and maintenance of each member provided in the second accommodating portion 810.

All disclosures of the specification, drawings, and abstract contained in the Japanese application of Japanese Patent Application No. 2020-71261 filed on April 10, 2020 are incorporated herein by reference.

The present invention can be applied to various fluid processing devices.

1 Fluid treatment device 11 Piping 111 Front piping 111a Front first piping 111b Front second piping 112 Rear piping 113 Front flow path 113a Front first flow path 113b Front second flow path 114 Rear flow path 12 Filter 13 Water pipe 14 Water Plug 2, 2B Notification device 20 Housing 201 Accommodation 202 Bottom plate 202a Lower first support 202b Lower second support 203 Side plate 203a Inflow port 203b Outlet 204 Top plate 204a Upper first support 204b Upper first 2 Support part 205 Seal ring 21 1st support shaft 22 2nd support shaft 23 Impeller 230 Base 231 blade 3 Reducer 30a 1st gear 30b 2nd gear 30c 3rd gear 30d 4th gear 30e 5th gear 30f Final gear 301 First area 31 Gear 311 Center hole 32 Large diameter gear part 320 Large diameter side base 321 Large diameter side tooth part 322 Tooth 33 Small diameter gear part 330 Small diameter side base 331 Small diameter side tooth part 332 Tooth 4 Replacement notification part 41 Seal 5 Replacement notice Part 6, 6B, 6C Judgment part 60 Plate 61 Slit 62a, 62b Judgment mark 7 First unit 71 First housing 710 First storage part 711 First bottom plate part 711a Lower support part 712 First side plate part 712a Inflow port 712b Flow Outlet 713 1st top plate 713a Upper support 72 1st support shaft 73a, 73b Metal piece 8 2nd unit 81 2nd housing 810 2nd accommodating 811 2nd bottom plate 811a Lower 1st support 811b Lower 1st (Ii) Support part 812 Second side plate part 813 Second top plate part 813a Upper first support part 813b Upper second support part 82 Second support shaft 83 Third support shaft 84a, 84b Magnet 9 Transmission mechanism

Claims (12)

1. It is a notification device that notifies the replacement time of consumable members in the fluid processing device.
   In the state of use, a first rotating body that is arranged in the flow path of the fluid processing apparatus and rotates by using the flow of fluid in the flow path as a power source.
   A second rotating body that rotates based on the rotation of the first rotating body, and
   A speed reducer that decelerates the rotation of the first rotating body and transmits it to the second rotating body,
   The exchange notification unit provided on the second rotating body and
   A determination unit provided so as to face the second rotating body in the first direction,
   With
   The exchange notification unit rotates together with the second rotating body, and when the exchange time arrives, the exchange notification unit coincides with the determination unit in the first direction.
   Notification device.
2. The notification device according to claim 1, wherein the second rotating body and the speed reducer are arranged in the flow path in the used state.
3. The speed reducer has a plurality of gears meshed with each other so as to be able to transmit the rotation of the first rotating body.
   The notification device according to claim 1 or 2, wherein the second rotating body is the final gear which is the gear farthest from the first rotating body among the plurality of gears.
4. The first rotating body can rotate about the first central axis and
   The notification device according to claim 3, wherein the second rotating body and the plurality of gears can rotate about the first central axis or the second central axis which is an axis parallel to the first central axis.
5. The first rotating body is fixed to a first shaft whose central axis coincides with the first central axis.
   The notification device according to claim 4, wherein each of the plurality of gears is provided on the first shaft or the second shaft whose central shaft coincides with the second central shaft.
6. The notification device according to claim 5, wherein the final gear is provided on the second shaft.
7. The notification device according to claim 1, wherein the second rotating body and the speed reducer are provided outside the flow path.
8. The notification device according to claim 7, further comprising a transmission mechanism provided between the first rotating body and the speed reducer to transmit the rotation of the first rotating body to the speed reducer.
9. The notification device according to any one of claims 1 to 8, wherein the exchange notification unit is provided at one location in the circumferential direction of the second rotating body.
10. The notification device according to any one of claims 1 to 8, wherein the exchange notification unit is provided at two locations displaced by 180 ° from each other in the circumferential direction of the second rotating body.
11. An exchange notice unit provided at a position adjacent to the exchange notification unit in the second rotating body is further provided.
    The item according to any one of claims 1 to 10, wherein the exchange notice unit rotates together with the second rotating body and coincides with the determination unit in the first direction before the exchange time by a predetermined time. Notification device.
12. The flow path through which the fluid flows and
    A filter provided in the flow path and filtering the fluid,
    A fluid processing device comprising the notification device according to any one of claims 1 to 11.

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