JPH09195353A - Channel device and toilet stool utilizing it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To have an inlet pipe section for supplying water to a water storage tank used for toilet stool, etc., and to promote work efficiency by providing easily a pressure reducing valve to the inlet pipe section in a detachable manner. SOLUTION: In a water storage tank A, an inlet pipe section 304 is connected to a water supply source (water service pipe) through a straight stop valve 306 and a water supply connection pipe 307. An inclined section 308b having a slantly upward opening section is formed in a primary side channel 308 of the inlet pipe section 304. A pressure reducing unit is provided in a mounting space of the inclined section 308b in a detachable manner. The pressure reducing unit is used for reducing pressure of flowing water through the primary side channel 308, and when a cover on the upper part of the water storage tank A is opened, the pressure reducing unit can be detachable from the opening section through an opening of the tank.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow path device having a pressure reducing valve or the like in the middle of a flow path such as a water supply pipe and a flush water tank for a toilet using the flow path device.

[0002]

2. Description of the Related Art Conventionally, in a wash water tank for storing wash water to be supplied to a toilet bowl, water is supplied through a water supply pipe connected to a water pipe. Such water supply increases noise as the amount of water increases, but in order to reduce this noise, a pressure reducing valve is provided (Actual No. 54-111836).
Issue).

FIG. 45 is a sectional view showing a portion where a water supply device is attached to a conventional wash water tank 1000. In FIG. 45, a tank body 1001 of the wash water tank 1000 is provided with a ball tap 1002 for stopping the supply of wash water according to the water level of the wash water. The ball tap 1002 is a mounting hole 1001 for the tank body 1001.
a main pipe 1003 attached to a and a main pipe 1003
A main valve 1004 connected to the main valve 1004, a float 1006 connected to the main valve 1004 via a cooperation mechanism 1005, and a water discharge pipe 1 connected to the main pipe 1003 via the main valve 1004.
007 and. In addition, the main pipe 1003
Is a water pipe 10 as a water supply source via a pressure reducing valve 1008.
09. The pressure reducing valve 1008 is made of an elastic member and has a ring body 1008 having a flow path in the central portion.
a.

In the ball tap 1002 having this structure, when the water pressure from the water pipe 1009 is applied and the float 1006 descends according to the water level in the tank body 1001 due to the drainage of the tank body 1001, the main valve 1
004 is opened, the water pipe 1009 and the pressure reducing valve 1008,
Water is supplied into the tank main body 1001 through the water discharge pipe 1007, while the main valve 1004 is supplied when the float 1006 rises.
To close the water supply. At this time, the pressure reducing valve 1008
The ring body 1008a provided inside elastically deforms in accordance with the water pressure to change the flow passage area, thereby suppressing the increase in the flow rate and silencing the sound.

[0005]

However, in the ball tap 1002, when the pressure reducing valve 1008 is clogged or is to be replaced, the pressure reducing valve 1008 is removed from the main pipe 1003 and the water pipe 1009 by a screw portion, Also,
When installing the pressure reducing valve 1008, the main pipe 1003
And it is necessary to connect by screwing in the water pipe 1009. When the pressure reducing valve 1008 is attached and detached, the water pipe 1009 comes off the main pipe 1003. Therefore, there is a problem that the work of connecting the pressure reducing valve 1008 while positioning both of them is troublesome.

The present invention is to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a flow passage device in which a pressure reducing valve and the like can be easily attached to and detached from a flow passage forming member, and a wash water tank using the same. And

[0007]

[Means for Solving the Problem and Its Action / Effect] A first invention made to solve the above-mentioned problems is to provide a flow path forming member having a flow path, and one end provided on the flow path forming member. A mounting portion having a mounting space that is a mounting opening for connecting a portion in the middle of the flow path and opening the other end to the outside, and is attachable to and detachable from the mounting space through the mounting opening. Valve means having a fluid function part which is interposed in the flow path when attached,
The fluid function unit may include a fluid adjustment unit that adjusts the pressure of the fluid flowing through the flow path.

In the flow channel device according to the first aspect of the present invention, the mounting portion is formed on the flow channel forming member that forms the flow channel. The mounting portion has a mounting space in which the valve means can be attached and detached. One end of the mounting space is connected in the middle of the flow path, and when the valve means is mounted, the fluid function part provided in the valve means is interposed in the flow path, and the fluid control part of Adjust either pressure or flow.

Further, the other end of the mounting space is provided with a mounting opening opened to the outside, and the valve means is mounted in the mounting space through this mounting opening. in this way,
The valve means can be attached to and detached from the attachment space through the attachment opening, and if the valve means is attached to the attachment space, the fluid control section can be interposed in the flow path. Moreover, even when the valve means is not mounted in the mounting space of the flow path forming member, the flow path forming member is not separated unlike the water supply pipe described in the related art, so that the attachment / detachment work is easy. is there.

Here, as a preferable mode of the valve means, it is desirable that the fluid function part is integrally assembled and that the support part is supported by the mounting space. This allows
The valve means is unitized so that the fluid function portion can be attached to and detached from the attachment space via the support portion, and therefore attachment / detachment to / from the attachment space becomes a one-touch operation.

In another preferred embodiment, the valve member is mounted in the mounting space by mounting the sealing member on the outer peripheral portion of the support portion in advance or by mounting the sealing member on the wall surface forming the mounting space in advance. At the same time, since between the support portion and the wall surface, that is, the flow path and the outside are sealed,
It is not necessary to use another complicated seal structure, and the mounting work can be further improved.

A second invention is an application of the flow passage device according to the first invention to a flush water tank for storing flush water to be supplied to a toilet bowl. That is, the wash water tank includes a water supply pipe connected to a water supply source (water pipe) to supply the wash water. This water supply pipe is provided with valve means having a fluid adjusting portion for adjusting the pressure and flow rate of the fluid.
When such valve means is detached for replacement or the like in a narrow space in the tank body, the water supply pipe is not separated at the valve means, so that the work is facilitated.

Further, as a preferred aspect of the second invention, when a washing water tank for closing the tank opening of the tank body with a lid is provided, valve means is provided in the vicinity of the tank opening.
Further, it is desirable that the tank opening is oriented toward the tank opening side. With this configuration, if the lid is removed, the valve means can be attached to and detached from the attachment portion of the water supply pipe through the tank opening, so that workability can be improved.

Furthermore, a third aspect of the present invention provides a flow path forming member,
The fluid function means is mounted in place of the valve means according to the first and second aspects of the invention. That is, the fluid function part of the fluid function means is applied to the strainer that captures the unique substances contained in the fluid. This strainer may be used alone in the fluid function means, or may be used in combination with the fluid control portion of the valve means of the first and second inventions.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a water storage tank A, FIG. 1 is a sectional view showing an upper part of the water storage tank A, FIG. 2 is a side sectional view showing the whole water storage tank A, and FIG. 3 is a plan view of the water storage tank A from above. 4 and 5 are perspective views of the main part.

In FIG. 2, the water storage tank A has a double structure including a resin tank A1 molded of synthetic resin and a ceramic cover A2 provided so as to cover the outer surface of the resin tank A1. An inflow pipe C is provided at the bottom of the resin tank A1.
Is erected, and the inflow pipe C is connected to the water supply pipe D. A drain valve E is provided at the bottom of the resin tank A1. The drain valve E is connected to a toilet bowl (not shown) by piping.

At the upper end of the inflow pipe C, as shown in FIG. 1, a ball tap B (water supply device) consisting of a pilot valve B1 and a diaphragm valve B2 which is opened by opening the pilot valve B1. It is arranged. The pilot valve B1 includes a valve body B3 as shown in FIG.
This valve body B3 is a valve seat B4 of the pilot valve B1 (FIG. 1).
The arm 3 is pivotally attached to the base end of the arm 3 so as to come into contact with and separate from the arm 3 in a vertically swingable manner. The other end of the arm 3 is screwed to the support shaft 2 of the float 1 so as to be vertically movable.

As shown in FIG. 1, the float 1 is made of synthetic resin and has a cylindrical shape with its upper surface 1a closed. The float may be formed in a hollow shape with its upper and lower surfaces sealed.

A support shaft 2 is integrally provided on the upper surface of the float 1. The support shaft 2 is the upper surface 1 of the float 1.
It is composed of an upper shaft portion 2a vertically projecting upward from a and a lower shaft portion 2b vertically projecting downward from the lower surface 1b of the float 1 and having the same outer diameter as the outer diameter of the upper shaft portion 2a. . The upper shaft portion 2a and the lower shaft portion 2b are arranged in a straight line in the vertical direction, and first screw portions 2c, 2c such as a male screw are formed on each of them.

If necessary, the support shaft 2 may be cut out so as to fit in a mounting recess 3a of the arm 3 to be described later as shown in FIG. 4 in a direction orthogonal to the respective axial directions. In the case of the present embodiment, both surfaces of the upper shaft portion 2a and the lower shaft portion 2b which face each other in the direction orthogonal to the axial direction are cut out substantially in parallel to form parallel surfaces 2d, 2d.

Further, on the outer peripheral portion of the support shaft 2, water storage amount indicators 4, ... Are formed in the axial direction thereof. As shown in FIG. 1, the water storage index 4 is a float when the water surface height W (full water position) in the resin tank A1 at the time of water stop is substantially equal to different flush water amounts of a plurality of types of toilet bowls. It can be used to indicate the mounting position of 1. That is, in the plurality of water storage indexes 4, ... By adjusting the arm 3 to any one of them and adjusting and moving the mounting position of the float 1 in the vertical direction, the water surface height W when water is stopped is stored in the water storage tank A.
It is possible to substantially match the flush water amount of the toilet connected to the pipe.

In the case of this embodiment, as shown in FIG. 4, the upper shaft portion 2a and the lower shaft portion 2 are used as the stored water amount indexes 4.
Although a groove having an outer diameter smaller than that of the first screw portion 2c of b is provided in the circumferential direction, a projection having an outer diameter larger than that of the first screw portion 2c may be provided so as to protrude all around the circumferential direction.

The arm 3 moves upward on the tip side to which the float 1 is attached, so that the valve element B3 disposed at the base end is brought into contact with the valve seat B4 to close the pilot valve B1. belongs to. At the tip of the arm 3,
As shown in FIGS. 3 and 4, the upper shaft portion 2a of the support shaft 2
Also, mounting recesses 3a are formed so that the lower shaft portions 2b engage with each other in a direction orthogonal to the respective axial directions so as to be freely inserted and removed.

The mounting recess 3a is formed into a substantially C-shaped plane, the inner diameter of which is substantially the same as the outer diameters of the upper shaft 2a and the lower shaft 2b, and the upper shaft 2a is inserted into the mounting recess 3a.
Or the lower shaft portion 2b is fitted to and elastically gripped. The attachment recess 3a can be attached to the upper shaft portion 2a or the lower shaft portion 2b with one touch. In the case of this embodiment, the mounting recess 3a
The opening size of is substantially equal to or slightly smaller than the distance between the parallel surfaces 2d and 2d of the upper shaft portion 2a and the lower shaft portion 2b.

A second screw portion 3b is engraved on the inner surface of the mounting recess 3a. The second screw portion 3b is formed so as to be screwed with the first screw portion 2c of the upper shaft portion 2a or the first screw portion 2c of the lower shaft portion 2b.

Further, the arm 3 is formed so as to bend so as to descend as it goes to the tip end where the mounting recess 3a is disposed as shown in FIGS. That is, the mounting recess 3a is mounted near the lower end of the support shaft 2, and in the case of the present embodiment, near the lower end of the lower shaft 2b. In this case, when the mounting position of the float 1 is set near the upper limit position, the upper end surface 2 of the support shaft 2
The upper end surface of the upper shaft portion 2a, which is e, is prevented from hitting the lid A3 that covers the upper surface opening of the pottery cover A2.

In the case of this embodiment, the pressure reducing valve F is arranged by bending the middle of the inflow pipe C. The pressure reducing valve F significantly reduces the flow velocity of tap water supplied from the water supply pipe D to muffle the water.

Further, as shown in FIG.
Is arranged so as to raise the swingable shaft attachment position 3c upward, and is arranged so that the float 1 does not interfere with the pressure reducing valve F or the like protruding from the middle of the inflow pipe C. As a result, the arm 3 is prevented from being caught when the pilot valve B1 is swung downward, which is the opening direction, and the diaphragm valve B2 is reliably opened.

Further, as shown in FIG. 2, by opening the diaphragm valve B2, a part of the tap water is directly guided to the resin tank A1 and is made to flow to the hand-washing / water-discharging tool G. Then, the water flowing out from the hand-washing / water-discharging tool G flows into the resin tank A1 through the hand-washing pot A4 formed on the upper surface of the lid A3.

Next, the assembly procedure and operation of the ball tap B will be described. Mounting recess 3 for arm 3
a is attached to the upper shaft portion 2a or the lower shaft portion 2b. At this time, since the water storage amount index 4 is formed so as to correspond to the amount of flush water required for the toilet connected to the water storage tank A, the mounting recess 3a of the arm 3 is attached according to the water storage amount index 4. . As a result, the mounting position of the float 1 is determined.

When the water pressure of the tap water supplied to the ball tap B is higher or lower than usual depending on the installation location, the upper shaft portion 2a and the lower shaft portion 2b correspond to this water pressure.
The mounting position of the float 1 can be finely adjusted by rotating the.

In the case of connecting a toilet with a maximum amount of flush water by piping, as shown by the solid line in FIG. 1, the mounting recess 3a of the arm 3 is mounted on the lower shaft portion 2b and arranged near the lower end of the lower shaft portion 2b. By adjusting and moving upward in accordance with the stored water amount index 4, the mounting position of the float 1 rises to near its upper limit position. Further, in the case of connecting a toilet bowl having a smaller amount of flush water than the maximum, by adjusting and moving downward in accordance with the stored water amount index 4 arranged near the upper end of the lower shaft portion 2b, the mounting position of the float 1 is lowered. .

On the other hand, when a toilet bowl with a small amount of flush water is connected by piping, the mounting recess 3a of the arm 3 is connected to the upper shaft 2a.
If it is replaced with a new one and is adjusted and moved according to the stored water amount index 4 arranged at the upper end of the upper shaft portion 2a, the mounting position of the float 1 is further lowered.

When a toilet bowl having a minimum amount of flush water is connected by piping, as shown by the alternate long and short dash line in FIG. 1, it is moved downward in accordance with the stored water amount indicator 4 arranged near the upper end of the upper shaft portion 2a. When the adjustment movement is performed, the mounting position of the float 1 is lowered to near its lower limit position.

Ball tap B assembled in this way
When the tip of the float 1 and the arm 3 moves downward as shown by the chain double-dashed line in FIG. 1 as the surface of the wash water stored by opening the drain valve E moves downward, the pilot valve B
1 opens and the diaphragm valve B2 opens, whereby water is supplied from the water supply pipe D into the resin tank A1 through the inflow pipe C.

As described above, the tip side of the float 1 and the arm 3 moves upward as the surface of the wash water stored by the water supply rises. Then, when the water surface height W in the resin tank A1 reaches a height that substantially matches the amount of flush water required for the toilet connected to the pipe, as shown by the solid line in FIG. The valve element B3 arranged in contact with the valve seat B4 closes the pilot valve B1. By this closing, the diaphragm valve B2 closes and water supply from the water supply pipe D is stopped.

On the other hand, FIGS. 5 and 6 show another embodiment, and FIG. 7 shows another embodiment.

In the above-described embodiments shown in FIGS. 1 to 4, the support shaft 2 is composed of the upper shaft portion 2a and the lower shaft portion 2b, and the arm 3 is attached to either one of them in the axial direction. It is a structure that can be adjusted and moved. On the other hand, in the embodiment of FIGS. 5 and 6, the upper surface 1 a of the float 1 is
And an inner shaft portion 2f that vertically projects upward from the inner shaft portion 2f.
A support shaft 2 is constituted by a cylindrical outer shaft portion 2g mounted on the outer peripheral surface of f so as to be adjustable and movable in the axial direction, and an arm 3 is adjustable and movable in the axial direction on the outer peripheral surface of the outer shaft portion 2g. The structure other than the above is the same as that of the embodiment shown in FIGS. 1 to 4.

In FIG. 5, a third screw portion 2h such as a male screw is engraved on the outer peripheral surface of the inner shaft portion 2f. On the other hand, the inner peripheral surface of the outer shaft portion 2g is engraved with a fourth screw portion 2i such as a female screw that is screwed into the third screw portion 2h, and the outer shaft portion 2g is attached to the inner shaft portion 2f. It can be adjusted and moved freely. A first screw portion 2j such as a male screw is engraved on the outer peripheral surface of the outer shaft portion 2g. This first
The screw portion 2j is screwed to the second screw portion 3d such as a female screw engraved in the mounting recess 3a of the arm 3 so as to be adjustable and movable.

Furthermore, the arm 3 is bent so as to descend toward the mounting recess 3a. That is, in the arm 3, even when the mounting recess 3a is mounted on the lower end of the outer shaft portion 2g and the mounting position of the float 1 is set near the upper limit, the upper end surface 2k of the outer shaft portion 2g does not hit the lid A3. Is formed.

With the above construction, the inner shaft portion 2f is adjusted and moved upward with respect to the outer shaft portion 2g as shown by the solid line in FIG.
With the inner shaft portion 2f inserted in the outer shaft portion 2g, the outer shaft portion 2
When the adjusting position is moved upwards to near the lower end of g, the mounting position of the float 1 rises to near its upper limit position, and when the adjusting position is moved downwards to near the upper end of the outer shaft portion 2g, the mounting position of the float 1 is lowered. Then, if the inner shaft portion 2f is adjusted and moved downward with respect to the outer shaft portion 2g from this state, the mounting position of the float 1 is further lowered, and the inner shaft portion 2f as shown by the one-dot chain line in FIG. If the outer shaft portion 2g is exposed to the vicinity of the upper end, the mounting position of the float 1 is lowered to the vicinity of the lower limit position.

Therefore, in the ones shown in FIGS. 5 and 6, it is not necessary to make the tip of the arm 3 reach a position below the lower surface 1b of the float 1 as compared with the embodiment shown in FIGS. The shape of can be miniaturized and can be made compact.

Another embodiment shown in FIG. 7 is a float 1
Inner shaft 2f 'protruding upward from the upper surface 1a, a cylindrical outer shaft 2g' mounted on the outer peripheral surface of the inner shaft 2f 'so as to be adjustable in the axial direction, and the lower surface 1b of the float 1. The supporting shaft 2 is constituted by a lower shaft portion 2b 'formed to have the same outer diameter as the outer diameter of the outer shaft portion 2g' protruding downward from the outer shaft portion 2g 'or the lower shaft portion 2b'. The configuration in which one is selected and the arm 3 is attached so as to be adjustable and movable in the respective axial directions is different from the embodiment shown in FIGS. 1 to 4, and other configurations are shown in FIGS. 1 to 4. It is the same as the embodiment.

In the embodiment shown in FIG. 7, similar to the embodiments shown in FIGS. 5 and 6, the outer peripheral surface of the inner shaft portion 2f 'is provided with a third screw portion 2h' such as a male screw. Then
A fourth screw portion 2i ', such as a female screw, which is screwed with the third screw portion 2h' is engraved on the inner peripheral surface of the outer shaft portion 2g 'and is screwed so as to be adjustable and movable. A first screw portion 2j 'such as a male screw is engraved on the outer peripheral surface of the lower shaft portion 2b', and a first screw portion 2c 'such as a male screw is formed on the outer peripheral surface of the lower shaft portion 2b'.
Is engraved, and a second screw portion 3d 'such as a female screw for screwing with the first screw portion 2j' of the outer shaft portion 2g 'or the first screw portion 2c' of the lower shaft portion 2b 'is armed. 3 is engraved in the mounting recess 3a of the screw 3 and screwed so as to be adjustable and movable.

Further, the upper end surface 2k 'of the outer shaft portion 2g' is
To close or open the arm 3 as shown.
The mounting recess 3a is attached to the lower end of the lower shaft portion 2b 'by bending the shape of the mounting recess 3a to the tip where the mounting recess 3a is disposed so as to descend as it goes to the mounting recess 3a. Is set near the upper limit position, the upper end surface 2k 'of the outer shaft portion 2g' is covered by the lid A3.
I try not to hit.

With the above construction, as shown by the solid line in FIG. 7, the inner shaft portion 2f 'is adjusted and moved upward with respect to the outer shaft portion 2g', and the outer shaft portion 2g is brought close to the lower end of the inner shaft portion 2f '. If the arm 3 is attached to the lower shaft portion 2b 'and the upper shaft portion 2b' is adjusted and moved upward to near the lower end of the lower shaft portion 2b 'while still being inserted into the ′, the mounting position of the float 1 rises to near its upper limit position, If the shaft portion 2b 'is adjusted and moved downward near the upper end, the float 1
The mounting position of the arm 3 is lowered, while the arm 3
If the outer shaft portion 2g 'is replaced near the upper end of the outer shaft portion 2g', the mounting position of the float 1 is further lowered.
If the inner shaft portion 2f 'is adjusted and moved downward with respect to g', the mounting position of the float 1 is further lowered, and as shown by the alternate long and short dash line in FIG. Shaft 2
If exposed from g, the mounting position of the float 1 is lowered to near its lower limit position.

Therefore, the embodiment shown in FIG. 7 is different from the embodiment shown in FIGS. 1 to 4 and the embodiments shown in FIGS. 5 and 6 in that the arm 3 extends from the lower shaft portion 2b 'to the outer shaft portion 2g'. And the outer shaft portion 2
Since there is the second adjustment stage in which the inner shaft portion 2f 'is adjusted and moved downward from g', the adjustment range up to the lower limit position of the float 1 can be further expanded.

In each of the above-described embodiments, the water storage tank A has a double structure including the resin tank A1 and the pottery cover A2. However, the water storage tank A is not limited to this and may have a conventionally known single structure. Of course, the ball tap B is composed of the pilot valve B1 and the diaphragm valve B2, but the structure and arrangement of the ball tap B are not limited to those shown in the figures, and other structures and arrangements may be used.

Further, in the embodiment shown in FIGS. 1 to 4, the upper shaft portion 2a and the lower shaft portion 2b are notched so as to fit into the mounting recess 3a of the arm 3 and the parallel surfaces 2d and 2d are formed. , The upper shaft 2a if fitted into the mounting recess 3a
The lower shaft portion 2b does not necessarily need to be cut out, and the embodiment shown in FIGS. 5 and 6 and the embodiment shown in FIG. The surfaces 2d 'and 2d' may be formed, and the resin tank A
Inlet pipe C is erected at the bottom of 1 and water supply pipe D (see FIG. 2)
However, it goes without saying that the water supply pipe may be connected by another structure.

Next, still another embodiment will be described with reference to FIGS. 8 to FIG.
In this embodiment, the water storage tank A has a double structure including a resin tank A1 made of synthetic resin and a ceramic cover A2 provided so as to cover the outer surface of the resin tank A1. Inflow pipe C is erected on the water supply pipe D
Drain valve E installed at the bottom of the resin tank A1
A ball tap B (water supply device), which is connected to a toilet via a pipe, and includes a pilot valve B1 and a diaphragm valve B2 that is opened by opening the pilot valve B1 is provided at the upper end of the inflow pipe C. The base end portion of the arm 103 to which the valve element B3 of the pilot valve B1 is connected is vertically pivoted so that the valve element B3 contacts and separates from the valve seat B4 of the pilot valve B1. Wear this arm 10
The support shaft 102 of the float 101 is screwed to the tip of the unit 3 so as to be adjustable in the vertical direction.

As shown in FIGS. 8 and 9, the float 101 is formed of a synthetic resin in a cylindrical shape in which at least the upper surface 101a is closed, or in a hollow shape in which the upper and lower surfaces are sealed.
At the center of a, a support shaft 102 that vertically projects upward in a state where the float 101 floats is integrally formed near the water surface of the wash water stored in the resin tank A1.
A ceramic cover A2 such as a male screw is engraved on the outer peripheral surface of the.

If necessary, the support shaft 102 is provided with the float 101 when the water surface height W in the resin tank A1 when the water is stopped is practically equal to different flush water amounts of a plurality of types of toilet bowls. Plural water storage index 10 showing position
2b ... Are arranged in the axial direction of the support shaft 102, and the arm 103 is aligned with any one of the plurality of water storage indexes 102b. The water surface height W may be made to substantially match the flush water amount of the toilet bowl connected to the water storage tank A. In the case of the illustrated example, as shown in FIG. 8, a pottery cover A of the support shaft 102 is used as a water storage amount index 102b ...
A groove having an outer diameter smaller than 2 is provided in the circumferential direction.

The arm 103 has a structure shown in FIGS.
As shown in FIG. 0, the tip end side to which the float 101 is attached rises, so that the valve body B3 disposed at the base end portion is moved to the valve seat B.
4 has a conventionally well-known structure in which the pilot valve B1 is closed by abutting against it, and a swinging means 104 for swingably supporting the support shaft 102 with respect to the arm 103 is provided at the tip thereof. Set up.

The swinging means 104 includes a concave surface portion 104a formed at the tip of the arm 103 and curved in an arc shape at least in the axial direction of the arm 103, and slidable in the axial direction of the arm 103 along the concave surface portion 104a. The support shaft 102 that engages with the support shaft 102 is screwed to the convex surface portion 104b. By sliding the convex surface portion 104b along the concave surface portion 104a, the support shaft 102 is swingably supported with respect to the arm 103. To be done.

In the case of the present embodiment, as shown in FIG. 8, a storage recess 103a whose upper surface is opened at the tip of the arm 103.
And the concave surface portion 104a is arranged on the bottom surface of the storage concave portion 103a, and the convex surface portion 104b is arranged so as to face the concave surface portion 104a.
By covering the upper surface opening of 3a with the lid 103b,
The convex surface portion 104b is housed and provided in the housing concave portion 103a, and the lid portion 103b has an insertion hole 103c through which the upper portion 102c of the support shaft 102 protruding above the convex surface portion 104b does not come into contact, and at least the arm thereof. As the inner peripheral surface of the base end side of 103 goes upward, the upper portion 10
The opening is made so as to be inclined away from 2c, or the diameter is made much larger than that of the upper portion 102c.

The front surface of the convex surface portion 104b is formed in a circular shape, but at least the lower half portion may be curved in an arc shape so as to fit with the concave surface portion 104a.
For example, a screw hole 104c in which a female screw is engraved and which is screwed with the ceramics cover A2 of No. 02 is penetrated and opened in the vertical direction.

Further, at the center of the lower end of the concave surface portion 104a, a through hole 104d through which a lower portion 102d of the support shaft 102, which projects downward from the convex surface portion 104b, passes without coming into contact with the lower portion 102d.
Is drilled so that at least the inner peripheral surface of the tip end side of the arm 103 inclines in a direction that gradually separates from the lower portion 102d as it goes downward.

Further, the rocking means 104 is provided with a rocking direction restricting portion 104e for rocking the support shaft 102 only in the axial direction of the arm 103, if necessary. In the case of the present embodiment, as shown in FIG.
As 4e, the transverse plane shape of the convex surface portion 104b is formed into, for example, a rectangular shape, and the storage concave portion 10 is fitted so as to fit with the rectangular shape.
By forming the cross-sectional plane shape of 3a into, for example, a rectangular shape, the convex surface portion 1 with respect to the storage concave portion 103a of the arm 103 is formed.
04b is non-rotatably supported in the rotation direction of the support shaft 102.

In this embodiment, as shown in FIGS. 8 and 10, the arm 103 is bent so that the shape of the arm 103 is lowered as it goes toward the tip.
Attach the tip of 3 near the lower end of the support shaft 102
When the mounting position of 01 is set near the upper limit position, the upper end surface 102e of the support shaft 102 does not abut the lid A3 that covers the upper opening of the ceramic cover A2.

Furthermore, by arranging the pressure reducing valve F by bending the middle of the inflow pipe C, the flow velocity of the tap water supplied from the water supply pipe D is significantly reduced and the sound is silenced, and the arm 103 swings. The free shaft mounting position 103d is raised and arranged, and the arm 10 is arranged so that the float 101 does not interfere with the closing cap F1 or the like protruding from the middle of the inflow pipe C.
By disposing 3, the arm 103 is prevented from being caught when the pilot valve B1 is swung downward which is the opening direction of the pilot valve B1, the diaphragm valve B2 is reliably opened, and the diaphragm valve B2 is opened. A part of the tap water thus made flows into the resin tank A1 from the hand-washing spout G through the hand-washing pot A4 formed on the upper surface of the lid A3, and the rest of the tap water directly flows into the resin tank A1. There is.

Next, the assembly procedure and operation of the ball tap will be described. First, the stored water amount index 102 corresponding to the amount of wash water required for the toilet connected to the water storage tank A by piping.
b is found from the support shaft 102, and this water storage index 102b
By rotating the support shaft 102 in accordance with the above, the mounting position of the float 101 with respect to the convex surface portion 104b and the arm 103 is adjusted, and when the water pressure of tap water supplied to the ball tap is higher or lower than usual depending on the installation location. By rotating the support shaft 102 in response to this water pressure, the mounting position of the float 101 is finely adjusted.

At this time, even if the support shaft 102 is rotated, the convex surface portion 104b which is linked to the support shaft 102 has the swing direction regulating portion 1a.
Since the arm 104 is non-rotatably supported by the housing recess 103a of the arm 103 by the 04e, the convex surface portion 104b does not rotate together with the rotation of the support shaft 102, which facilitates the adjustment work.

The ball tap thus assembled has the float 10 as shown by the chain double-dashed line in FIG. 8 as the surface of the wash water stored by the opening of the drain valve E descends.
1 and the tip side of the arm 103 move downward, the pilot valve B1 opens and the diaphragm valve B2 opens, whereby water is supplied from the water supply pipe D into the resin tank A1 through the inflow pipe C, and the stored water. As the surface of the washing water rises, the tip side of the float 101 and the arm 103 moves upward.

At this time, when the float 101 is floated on the ascending / descending water surface, the support shaft 102 naturally becomes vertical, and the convex surface portion 104b linked to the vertical support shaft 102 becomes the concave surface portion 1.
By sliding in the axial direction of the arm 103 along 04a, the support shaft 10 can be moved regardless of the swing angle of the arm 103.
In No. 2, the float 101 is always held in the vertical state and the float 101 does not tilt.

The water surface height W in the resin tank A1
At a height substantially corresponding to the amount of flush water required for the toilet connected to the pipe, the valve element B3 arranged at the base end portion of the arm 103 as shown by the solid line in FIG. And the pilot valve B1 is closed, and the diaphragm valve B2 is closed by this closing to stop the water supply from the water supply pipe D.

On the other hand, what is shown in FIGS. 11 and 12 is still another embodiment of the present invention, in which a fitting concave portion whose lower surface is opened at the tip of the arm 103 is used instead of the accommodating concave portion 103a. A concave surface portion 1 that forms a swinging means 104 on the upper surface of the fitting concave portion 103e by integrally connecting 103e.
04a 'is arranged, the convex surface portion 104b' is arranged so as to face the concave surface portion 104a ', and the lower surface opening of the fitting concave portion 103e is covered with a lid portion as necessary, so that the fitting concave portion 103e is formed. The configuration in which the convex surface portion 104b 'is arranged so as to be housed therein is different from the embodiment shown in FIGS. 8 to 10, and other configurations are shown in FIGS.
0 is the same as the embodiment shown in FIG.

In this embodiment, as shown in FIG. 11, the front shape of at least the upper half of the convex surface portion 104b 'is curved in an arc shape so as to fit with the concave surface portion 104a', and the first screw of the support shaft 102 is formed. A screw hole 104c ', for example, in which a female screw is engraved, which is screwed into the portion 102a, is formed by penetrating in the vertical direction. At the center of the upper end of the concave surface portion 104a ', a through hole 104d' through which the upper portion 102c 'of the support shaft 102, which projects upward from the convex surface portion 104b', penetrates without contact.
Is opened so that at least the inner peripheral surface of the arm 103 at the base end side is inclined in a direction in which the inner peripheral surface gradually separates from the upper portion 102c 'as it goes upward, and the through hole 104d' is formed.
A larger diameter retaining portion 102f is provided on the upper end of the support shaft 102 so as to project therefrom. Further, as shown in FIG. 12, at the tip of the arm 103, an insertion opening 103f is provided to allow the support shaft 102 to be inserted into and removed from the fitting recess 103e.
04a 'and the through-hole 104d' are connected and opened. The insertion opening 103f is formed to be slightly smaller than the outer diameter of the support shaft 102, and the support shaft 102 is inserted while elastically deforming the insertion opening 103f so that the insertion opening 103f can be easily inserted from the concave surface portion 104a 'and the through hole 104d'. Support shaft 102
It is preferable to prevent the support shaft 10 from coming out, but the support shaft 10
You may form so that it may become substantially the same as the outer diameter of 2.

With the above structure, when the mounting position of the float 101 is adjusted, the support shaft 102 is moved downward or the support shaft 102 is taken out from the insertion opening 103f and the convex surface portion 104b is pulled out of the fitting recess 103e. The support shaft 102 is rotated while pulling out ′ and pressing the convex surface portion 104b ′ with a hand to prevent the convex surface portion 104b ′ from rotating together. Then, when the water surface of the wash water descends, the support shaft 10 is released from the fitting recess 103e of the arm 103 that swings downward.
2, the convex surface portion 104b 'comes out, but the retaining portion 1
The support shaft 102 is not disengaged from the through hole 104d 'by 02f. After that, water supply is started by opening the pilot valve B1 and the diaphragm valve B2, and when the surface of the washing water rises and the float 101 and the support shaft 102 rise, the support shaft 102 and the convex surface portion 104b 'are fitted to the arm 103. Since the support shaft 102 naturally becomes vertical due to the float 101 that has entered the concave portion 103e and floated on the water surface, the convex surface portion 104b ′ linked to the vertical support shaft 102 is the concave surface portion 10.
By sliding in the axial direction of the arm 103 along 4a ', the support shaft 10 is irrespective of the swing angle of the arm 103.
In No. 2, the float 101 is always held in the vertical state and the float 101 does not tilt.

In each of the embodiments shown in FIGS. 8 to 10 and 11 to 12, the water storage tank A has a double structure including the resin tank A1 and the ceramic cover A2.
The present invention is not limited to this, and may have a conventionally known single structure, and the ball tap B is composed of the pilot valve B1 and the diaphragm valve B2, but the structure and arrangement of the ball tap are not limited to those shown in the drawings, and The structure and arrangement of

Further, the swinging direction restricting portion 104e is provided only in the embodiment shown in FIGS. 8 to 10.
1 and the embodiment shown in FIG. 12, the structure is not limited to the structure described above, and the support shaft 10
Other structures may be used as long as 2 can be swung only in the axial direction of the arm 103. Further, the inflow pipe C is erected at the bottom of the resin tank A1 and the water supply pipe D is connected. It goes without saying that piping may be connected.

Next, still another embodiment will be described with reference to FIGS. In this embodiment, as shown in FIG. 13 to FIG. 16, the water storage tank A has a double structure including a resin tank A1 formed of synthetic resin and a ceramic cover A2 provided so as to cover the outer surface of the resin tank A1. An inflow pipe C is erected on the bottom of the resin tank A1 to connect a water supply pipe D, and is connected to a toilet bowl through a drain valve E arranged at the bottom of the resin tank A1. At the upper end of the pilot valve B1 and the pilot valve B1
A ball tap B composed of a diaphragm valve B2 that is opened by opening the pilot valve B
A base end portion of an arm 203 to which one valve body B3 is connected is pivotally attached in a vertical direction so that the valve body B3 comes in contact with and separates from the valve seat B4 of the pilot valve B1. The support shaft 202 of the float 201 is screwed to the tip of the shaft so as to be vertically movable.

As shown in FIGS. 13 to 15, the float 201 is formed in a cylindrical shape in which at least the upper surface 201a is closed with a synthetic resin, or in a hollow shape in which the upper and lower surfaces are sealed, and the support shaft 202 is mounted above the upper surface 201a. The support shaft 202 is engraved with a first screw portion 202a such as a male screw on its outer peripheral surface. Further, if necessary, as shown in FIGS. 15 and 16, a mounting recess 203a of an arm 203, which will be described later, is cut out so as to fit in a direction orthogonal to the axial direction of the support shaft 202. In the case of the present embodiment, both surfaces facing each other in the direction orthogonal to the axial direction of the support shaft 202 are cut out substantially parallel to each other to form the parallel surface 202.
b, 202b are formed.

Further, the support shaft 202 has a plurality of attachment positions of the float 201 when the water surface height W in the resin tank A1 when the water is stopped is practically equal to different flush water amounts of a plurality of types of toilet bowls. Are stored in the axial direction of the support shaft 202, and a plurality of water storage indexes 204 ...
By adjusting the arm 203 to any one of the ... and vertically moving the mounting position of the float 201, the water surface height W when water is stopped and the flush water amount of the toilet bowl connected to the water storage tank A can be practically determined. Match. In the case of this embodiment, projections 204a having a larger outer diameter than the first screw portion 202a of the support shaft 202 as the water storage amount indexes 204 ... Are provided over the entire circumference in the circumferential direction or partially projected. I have set up.

The arm 203 is connected to the float 201.
The valve body B3 disposed at the base end is brought into contact with the valve seat B4 by raising the tip end side for mounting the pilot valve B.
1 has a conventionally well-known structure for closing the valve 1, and a mounting recess 203a is formed at the tip thereof so that the support shaft 202 can be freely inserted and removed in a direction orthogonal to the axial direction thereof, as shown in FIGS. Form this mounting recess 20
3a has an inner diameter that is substantially the same as the outer diameter of the support shaft 202 and is formed in a substantially C-shape in a plane.
The support shaft 202 inserted in a is fitted and elastically gripped. In the case of the present embodiment, the opening size of the mounting recess 203a is set to the parallel surface 20 of the support shaft 202.
The distance between 2b and 202b is substantially the same as or slightly smaller than that. On the inner surface of the mounting recess 203a, a second screw portion 203b such as a female screw that is screwed with the first screw portion 202a of the support shaft 202 is engraved.

Further, in this embodiment, FIG. 13 and FIG.
By bending the shape of the arm 203 so as to descend as shown in FIG.
When the mounting recess 203a of 03 is mounted near the lower end of the support shaft 202 and the mounting position of the float 201 is set near the upper limit position, the upper end surface 202c of the support shaft 202 covers the upper opening of the ceramic cover A2. I try not to hit A3. Furthermore, by bending the middle of the inflow pipe C and disposing the pressure reducing valve F, the flow velocity of the tap water supplied from the water supply pipe D is significantly reduced to muffle the sound, and the arm 203 can swing freely. By arranging the landing position 203c upward and arranging the arm 203 so that the float 201 does not interfere with the closing cap F1 or the like protruding from the middle of the inflow pipe C, the arm 203 opens the pilot valve B1. The diaphragm valve B2 is surely opened by preventing it from being caught when it is swung downward, which is a direction, and a part of the tap water that has passed by the opening of the diaphragm valve B2 is discharged from the hand-washing / water-discharging tool G to the lid A3. It flows into the resin tank A1 through the hand-washing pot A4 formed on the upper surface, and the rest of the tap water directly flows into the resin tank A1.

Next, the assembly procedure and operation of such a ball tap will be described. First, a water storage amount index 204 corresponding to the amount of flush water required for the toilet connected to the water storage tank A by piping is found from the support shaft 202, and the arm 203 is aligned with the cut parallel surfaces 202b and 202b of this portion.
When the mounting recess 203a of the mounting recess 203a is fitted, the first screw portion 202a of the portion and the second screw portion 20 of the mounting recess 203a are attached.
3b is screwed and elastically gripped, whereby the float 2
01 support shaft 202 and arm 203 are attached with one touch. Then, when the water pressure of the tap water supplied to the ball tap is higher or lower than usual depending on the installation location, the mounting position of the float 201 is finely adjusted by rotating the support shaft 202 corresponding to this water pressure.

The ball tap thus assembled has the float 2 as shown by the chain double-dashed line in FIG. 13 as the surface of the wash water stored by the opening of the drain valve E descends.
01 and the tip side of the arm 203 move downward, the pilot valve B1 opens and the diaphragm valve B2 opens, which causes the resin tank A1 from the water supply pipe D through the inflow pipe C.
The tip side of the float 201 and the arm 203 moves upward as the water level of the wash water stored therein rises. Then, when the water surface height W in the resin tank A1 reaches a height that substantially matches the amount of flush water required for the toilet connected to the pipe, as shown by the solid line in FIG. The valve element B3 arranged in contact with the valve seat B4 closes the pilot valve B1. By this closing, the diaphragm valve B2 closes and water supply from the water supply pipe D is stopped.

On the other hand, what is shown in FIGS. 17 and 18 is still another embodiment of the present invention, in which the first screw portion 2 of the support shaft 202 serves as a plurality of water storage amount indexes 204 ...
The projections 204a having a larger outer diameter than 02a are projected, and the grooves 204b having a smaller outer diameter than the first screw portion 202a of the support shaft 202 are circumferentially recessed. 16 is different from the embodiment shown in FIG. 16 in other respects, the configuration is the same as the embodiment shown in FIGS. 13 to 16.

Therefore, those of FIGS. 17 and 18 are similar to those of FIG.
In the embodiment shown in FIGS. 3 to 16, the mounting recess 203a of the arm 203 abuts the protrusions 204a ... And prevents further adjustment movement, so that the adjustment range is reduced, but in comparison with this, the grooves 204b. Since the mounting recess 203a of 203 can be adjusted and moved, the adjustment range can be expanded.

In each of the embodiments shown above, the water storage tank A
The resin tank A1 and the pottery cover A2 have a double structure. However, the structure is not limited to this, and a conventionally known single structure may be used.
And a diaphragm valve B2, but a ball tap B
The structure and arrangement are not limited to those shown in the figure, and other structures and arrangements may be used. Further, although the support shaft 202 is cut out so as to fit with the mounting recess 203a of the arm 203, if it is fitted with the mounting recess 203a, the support shaft 202 is cut.
Does not necessarily need to be cut out, and the resin tank A1
The inflow pipe C was erected at the bottom of the and the water supply pipe D was connected.
It goes without saying that the water supply pipe may be connected by another structure.

Next, still another embodiment will be described with reference to FIGS. 19 is a front sectional view of the water storage tank A, and FIG. 20 is a side sectional view of the water storage tank A. The water storage tank A according to the present embodiment includes a ball tap B'as a water supply device. The water storage tank A has a double structure including a resin tank A1 and a pottery cover A2. At the bottom of the water storage tank A, a drain valve E and a handle device H for opening the drain valve E are provided.

As shown in FIG. 20, the ball tap B ′ has a pilot valve 301a whose valve portion 301 is directly opened / closed by vertical movement of a float 302 as the water level in the water storage tank A is raised and lowered, and a pilot valve 301a of this pilot valve 301a. It is a conventionally known diaphragm type ball tap composed of a diaphragm valve 301b that causes an opening operation by opening the valve.
It is constructed as a bottom water supply system.

The ball tap B ′ is connected to an inflow pipe portion 304 (flow passage forming member) in which the main body 303 extends downward long. The inflow pipe portion 304 is attached to the bottom of the water storage tank A in a state of standing upright almost vertically, and an inflow port 305 opening at the lower end thereof is connected to a water supply connection pipe 307 taken out from the water stopcock 306.

A primary side flow path 308 is formed in the inflow pipe section 304 from the inflow port 305 to the valve section 301. The primary flow path 308 includes a first vertical portion 308a extending substantially vertically from the inlet 305 and a first vertical portion 308a.
A sloped portion 308b (mounting portion) that is continuous with the first curved portion 309a and is inclined obliquely upward to the downstream side, and a sloped portion 308b that continuously reaches the valve portion 301 through the second curved portion 309b. It has two vertical portions 308c.

Further, the inflow pipe portion 304 has the inclined portion 3
An opening 310 coaxial with the inclined portion 308b is provided on the extension of the axis of 08b, and the decompression unit 311 is inserted and arranged from the opening 310 into the inclined portion 308b.

FIG. 21 is an enlarged sectional view showing the vicinity of the pressure reducing unit 311 of FIG. 20, and FIG. 22 is an exploded perspective view of the pressure reducing unit 311. As shown in FIGS. 21 and 22, the decompression unit 311 includes a cap portion 312 that closes the opening 310, and a valve case 313 that is connected to the cap portion 312 with a proper distance from the tip of the cap portion 312.
A drop-preventing member 314 assembled at the tip opening of the valve case 313; a pressure reducing member 315 housed inside the valve case 313; and a spring receiving portion 316 provided at the rear end of the pressure reducing member 315 and the valve case 313. And a spring 317 that is inserted between the pressure reducing member 315 and the depressurization member 314 to urge the pressure reducing member 315 toward the drop-off prevention member 314.

The cap portion 312 is made of a disk having a diameter substantially the same as the inner diameter of the opening portion 310, an operating knob 318 is provided on the outer surface thereof, and an engaging portion of the opening portion 310 which will be described later is provided on the peripheral surface thereof. Protrusion-shaped locking portion 320 that engages with the portion 319
Is provided. Further, an O-ring 321 is attached to the peripheral surface of the cap portion 312 on the tip side of the locking portion 320.

The valve case 313 is formed in a generally cylindrical shape and is coaxially connected to the front surface of the cap portion 312 via a holding arm 322, and is held between the rear end and the front surface of the cap portion 312. An interval 323 corresponding to the length of the arm 322 is provided. Further, in the valve case 313, an inner flange-shaped spring receiving portion 316 is formed in a rear end opening portion, and a seat portion 324 is formed in a step shape in an axially intermediate portion. The valve case 3
The seat portion 324 of No. 13 is formed to have a diameter slightly smaller than the inner diameter of the inclined portion 308b of the primary side channel 308,
An O-ring 325 is attached to its outer peripheral surface.

The decompression member 315 is the valve case 31.
3 is located upstream of the seat portion 324 and has a disk shape slightly smaller than the inner diameter of the seat portion 324. A throttle hole 326 is formed in the center of the disk portion so as to project rearward in a cylindrical shape. The throttle hole 326 is widened toward the front surface side of the pressure reducing member 315, and the front end opening edge is gently continuous with the front surface of the pressure reducing member 315.

Further, the pressure reducing member 315 is provided with a spring receiving groove 327 surrounding the throttle hole 326 on the back surface and a plurality of axially extending ribs 328 formed on the peripheral surface. The diameter of the circle drawn by connecting the tips of these ribs 328 is substantially the same as the inner diameter of the valve case 313 beyond the seat portion 324. The pressure reducing member 315 is slidably inserted into a portion of the valve case 313 beyond the seat portion 324, and has a groove 327 for receiving a spring and a valve case 313.
The spring 317 is elastically mounted over the spring receiving portion 316.

The fall-off preventing member 314 is formed in a ring shape, and the throttle hole 3 of the pressure reducing member 315 is formed in the center thereof.
A lid portion 330 for closing 26 is provided supported by a spoke-shaped support portion 329. This lid 330
Has a cone shape that can be fitted into the throttle hole 326. Further, the inside diameter of the fall-off prevention member 314 is formed to be slightly smaller than the outside diameter of the portion of the pressure reducing member 315 where the rib 328 is not provided. The fall prevention member 314 is mounted coaxially with the tip opening of the valve case 313, and the decompression member 315 is provided on the upper surface of the peripheral edge of the spring 31.
It is urged by 7 and close.

The depressurizing unit 311 has the cap portion 312 when mounted on the inclined portion 308b.
The space 323 provided between the valve case 313 and the valve case 313 corresponds to the inlet portion of the second vertical portion 308c of the primary side flow path 308.

On the other hand, an engaging portion 319 is provided in the opening 310 of the inflow pipe portion 304 in a slit shape in the circumferential direction. The engaging portion 319 is provided so as to engage with the engaging portion 320 provided on the peripheral surface of the cap portion 312. In addition, a guide portion 331 that guides the locking portion 320 to the engaging portion 319 is recessed in the opening portion 310 from the opening edge to the engaging portion 319.

The lateral width of the guide portion 331 is equal to or larger than the lateral width of the engaging portion 320, and the engaging portion 3
19 is formed such that the depth beyond the portion where the guide portion 331 communicates is longer than the lateral width of the locking portion 320.
A protrusion 332 for preventing a return is formed on the portion 19 from the depth end thereof to a position before the dimension substantially corresponding to the lateral width of the engaging portion 319. In addition, the locking portion 320 and the engaging portion 3
The reference numerals 19 are provided on the cap portion 312 and the opening portion 310, respectively, at two locations in line symmetry.

The decompression unit 311 configured as above.
Is attached to the inclined portion 308b of the inflow pipe portion 304,
First, the lid A3 on the upper part of the water storage tank A is removed, and the tank opening A5 is opened. Then, holding the pressure reducing unit 311 through the tank opening A5, the valve case 313
Insert into the opening 310 from the side. At this time, the locking portion 320 of the cap portion 312 is connected to the guide portion 33 of the opening portion 310.
1 and push it into the inclined portion 308b,
Hold 8 and rotate half a turn. Thereby, the locking portion 3
The depressurizing unit 311 is attached to the inclined portion 308b in a state where 20 is snap-fitted to the return preventing projection 332 and is prevented from returning to the guide portion 331 side.

Therefore, the depressurizing unit 311 is inserted into the inclined portion 308b through the opening 310 and the cap portion 3 is inserted.
It can be attached by a one-touch operation that can rotate 12 half, and when removing it, the cap part 312
It is easy to pull out the knob 318 by rotating it half way.
Moreover, even when the pressure reducing unit 311 is not attached to the inclined portion 308b, the inclined portion 308b is not separated between the first vertical portion 308a and the second vertical portion 308c of the primary side channel 308. It is easy to attach and detach the decompression unit 311.

Further, on the outer peripheral portion of the cap portion 312, O
The ring 321 is mounted, and the O-ring 325 is mounted on the outer peripheral portion of the valve case 313. These are provided when the pressure reducing unit 311 is inserted into the inclined portion 308b.
A seal is formed between the inclined portion 308b and the inner wall surface. Therefore, at the same time as mounting the decompression unit 311, the inclined portion 308
The seal between b and b can be surely performed with a simple structure.

Next, the operation of the decompression unit 311 will be described. Now, when there is no flow of water in the primary side flow path 308, that is, in the state where the ball tap B ′ is closed, the pressure reducing member 315 is biased by the spring 317 and is pressed against the fall prevention member 314. And the lid portion 330 of the dropout prevention member 314 is attached to the throttle hole 3 of the pressure reducing member 315.
26 is plugged to block the throttle hole 326. At this time, the rib 328 provided on the peripheral surface of the pressure reducing member 315 causes the peripheral surface of the pressure reducing member 315 and the valve case 31 to move.
A gap (not shown) formed between the inner surface of the sheet 3 and the inner surface of the sheet 3 is also blocked by the drop-preventing member 314 so that water cannot pass therethrough.

Now, when the drain valve E of the toilet flush tank device is opened to flush the flush water stored in the water storage tank A, the water level in the water storage tank A is lowered, and the water supply to the ball tap B'begins. Since the decompression member 315 receives the flowing water pressure, it moves to the downstream side against the spring 317 and falls off.
14, the throttle hole 326 and the lid portion 330 are disengaged from each other to open the throttle hole 326, and the gap between the peripheral surface of the pressure reducing member 315 and the inner surface of the valve case 313 can also pass water. Become.

Therefore, the valve portion 30 of the ball tap B ′ is
The water supplied to No. 1 is squeezed by the squeezing hole 326 and the gap to reduce the pressure. When the water pressure is high, the pressure reducing member 315 moves further rearward, and the back surface of the pressure reducing member 315 comes into close contact with the seat portion 324 of the valve case 313 to block the flow of water passing through the gap. As a result, the water will flow only through the throttle hole 326, and the pressure will be further reduced.

When a negative pressure is generated on the upstream side for some reason, the force of water for pushing the pressure reducing member 315 to the downstream side disappears, so that the pressure reducing member 315 has a spring 317.
Is pressed against the drop-preventing member 314 by the urging force, and the throttle hole 326 is fitted and closed in the lid portion 330, and at the same time, the gap around the decompression member 315 is also closed by the drop-preventing member 314 to prevent backflow. To be done.

In the toilet bowl cleaning tank device, the water flowing through the primary side flow path 308 of the ball tap B ′ is
The flow velocity is reduced by the flow path resistance of the first bent portion 309a, and further reduced by the pressure reducing member 315, so that the noise caused by the flow of water is significantly reduced.

At this time, since the shape of the throttle hole 326 is such that it expands to the upstream side, the water flow is gradually and gradually throttled as if a plurality of throttles were stacked, and noise reduction is effective. To be done.

Further, when a negative pressure is generated in the upstream, the pressure reducing member 315 is pressed against the drop-preventing member 314, so that the lid portion 330 of the drop-preventing member 314 is closed.
6 is fitted like a plug to close the throttle hole 326, and at the same time, the gap around the decompression member 315 is also closed by the fall prevention member 314, so that backflow is prevented.

The lid portion 330 does not necessarily have to be formed in a cone shape that fits into the throttle hole 326 like a plug, and the pressure reducing member 315 is brought into contact with the drop-preventing member 314 to close the throttle hole 326. If it can be closed, it may be formed in a flat plate shape.

Further, in the embodiment described above, the case where the water supply device installed in the water storage tank A uses the ball tap B'is described, but the water supply device is not limited to the ball tap B ', but any type of water supply device. It is also possible to use.

Next, still another embodiment will be described with reference to FIGS. 23 to 26. In the illustrated embodiment, a water storage tank A in the toilet bowl cleaning tank device includes a ball tap B ″ as a faucet, a drain valve E, and a handle device H (FIG. 24) for opening and operating the drain valve E. ing.

The ball tap B ″ has a pilot valve 401a which directly opens and closes the valve portion 401 by vertical movement of the float 402 as the water level in the water storage tank A rises and lowers, and a valve opening operation by opening the pilot valve 401a. This is a conventionally known diaphragm type ball tap composed of a diaphragm valve 401b which is agitated, and is of a lower water supply type. That is, the ball tap B ″ is its main body 403.
Is provided with an inflow pipe portion 406 extending downwardly. The inflow pipe portion 406 is attached to a bottom portion of the resin tank A1 so as to stand substantially vertically, and an inflow port 404 opening at a lower end thereof is provided in a water supply pipe 405. Connected.

A primary side flow path 407 is formed in the inflow pipe section 406 from the inflow port 404 to the valve section 401, and a pressure reducing valve installation section 409 (mounting section) having an opening 408 on the side surface of the inflow pipe section 406. ) Is formed. Pressure reducing valve installation part 4
Numeral 09 extends cylindrically in the inflow pipe portion 406 obliquely downward with the opening 408 facing upward, and the pressure reducing valve installation portion 40
A pressure reducing valve unit 410, which will be described later, is installed at 9.

On the other hand, although the primary side flow passage 407 is formed substantially vertically, the axes thereof are deviated in parallel before and after the pressure reducing valve installation portion 409. That is, the flow path 407a upstream of the pressure reducing valve installation portion 409 communicates with the pressure reducing valve installation portion 409 at the tip of the pressure reducing valve installation portion 409, and the flow path 407b downstream of the pressure reducing valve installation portion 409 is connected to the pressure reducing valve. The pressure reducing valve installation portion 409 is connected to the side surface of the installation portion 409. That is, the primary side flow path 407 is formed so as to pass through the pressure reducing valve installation portion 409, and the flow path is bent in the pressure reducing valve installation portion 409.

The pressure reducing valve unit 410 installed in the pressure reducing valve installation unit 409 has a cap 411 for closing the opening 408.
It is unitized by integrally assembling all the functional parts.

That is, the pressure reducing valve unit 410 includes a cap 411 provided with an operating knob 413 and a cap 411.
1, a spring receiving portion 415 of a substantially cylindrical shape having a diameter slightly smaller than the inner diameter of the pressure reducing valve installation portion 409, and extending in the axial direction from the peripheral portions of the spring receiving portion 415 and the cap 411. A plurality of holding arms 41 to be connected
6 and an O-ring 414 fitted to the outer peripheral surface of the spring receiving portion 415.

A fall prevention member 417 is attached to the opening at the tip of the spring receiving portion 415, and a pressure reducing member 418 is slidably accommodated inside the spring receiving portion 415. The spring 420 is inserted between the spring portion 419 and the step portion 419 provided in the spring receiving portion 415.
The pressure reducing member 418 is biased forward by 20.

The pressure reducing member 418 has a spring receiving portion 415.
It is composed of a disk-shaped piece having a diameter substantially the same as the inner diameter of, and has a throttle hole 421 in the center. The fall prevention member 417 is
The pressure reducing member 4 is formed in a ring shape and is formed in the center thereof.
Cone-shaped protrusions 422 that fit into the eighteen throttle holes 421 and are fitted into the throttle holes 421 are provided via spoke-shaped support portions 423. The throttle hole 421 of the pressure reducing member 418 has a lower half portion widened toward the lower surface side in order to facilitate fitting of the protrusion 422 of the drop-off preventing member 417.

The pressure reducing valve section 4 unitized as described above.
10 is inserted into the pressure reducing valve installation portion 409 and the cap 411.
Is fixed to the opening portion 408, and the opening portion 408 is closed to install the pressure reducing valve installation portion 409. The O-ring 414 is installed between the outer peripheral surface of the spring receiving portion 415 and the inner peripheral surface of the pressure reducing valve installation portion 409. Sealed with.

On the outer peripheral surface of the cap 411, a projection-like locking portion 424 is provided, while the pressure reducing valve installation portion 409 is provided.
An engaging portion 425 corresponding to the engaging portion 424 is provided in a slit shape in the circumferential direction in the opening portion 408, and a guide portion 426 that guides the engaging portion 424 to the engaging portion 425.
Is recessed from the opening edge to the engaging portion 425.

The lateral width of the engaging portion 424 is equal to that of the guide portion 42.
6 is equal to or smaller than the lateral width of 6, and the engaging portion 425
Is formed such that the depth before the portion where the guide portion 426 communicates is longer than the lateral width of the locking portion 424.
A protrusion 427 for preventing a return is formed on the portion 5 from the front end of the depth thereof to a portion before the dimension substantially corresponding to the lateral width of the locking portion 424. In addition, the locking portion 424 and the engaging portion 42
Two caps 5 are provided on the cap 411 and the opening 408, respectively, in line symmetry. In addition, the cap 4
11 has an O-ring 42 slightly forward of the locking portion 424.
8 is attached.

With this structure, the unitized pressure reducing valve portion 410 aligns the locking portion 424 of the cap 411 with the guide portion 426 of the opening portion 408 to reduce the pressure reducing valve installation portion 4.
09 and push it half way to lock part 42
4 can be engaged with the engaging portion 425, and the locking portion 42
4 is snap-fitted to the return preventing projection 427 to prevent returning to the guide portion 426 side. These locking parts 4
The engagement of the pressure reducing valve portion 410 with the engagement portion 425
Is installed in the pressure reducing valve installation portion 409 by fixing the cap 411 to the opening 408, and the space between the cap 411 and the opening 408 is O of the outer peripheral surface of the cap 411.
Sealed by ring 428.

Further, in the pressure reducing valve section 410, the cap 411 is slightly rotated in this state to the side opposite to the above, so that the engaging section 425 is disengaged from the return preventing projection 427.
It moves to a position aligned with the guide portion 426. Therefore, in this state, the pressure reducing valve portion 410 can be taken out by pulling out the cap 411 from the opening portion 408.

The operation of the pressure reducing valve unit 410 will be described below. Now, from the inflow port 404 to the primary side flow path 407.
The water that has flowed in is supplied to the valve unit 401 of the ball tap B ″ via the pressure reducing valve installation unit 409, but when passing through the pressure reducing valve installation unit 409, the pressure reducing valve unit 410 installed in the pressure reduction valve installation unit 409 The pressure reducing member 418 is moved by the flow pressure to the spring 4
It moves to the rear against 20, and passes through the central throttle hole 421 of the pressure reducing member 418. As a result, the flow rate of the inflow water is reduced by the throttle hole 421 and the pressure is reduced.

If a negative pressure is generated on the upstream side for some reason, the force of water for pushing the pressure reducing member 418 to the downstream side disappears.
The urging force of 20 pushes against the drop-off prevention member 417, and the throttle hole 421 is fitted into the projection 422 to be closed and backflow is prevented. In the figure, the water storage tank A is composed of a resin tank A1 and a ceramic cover A2 that covers the resin tank A1.

Next, still another embodiment will be described with reference to FIGS. 28 to 31. 28 is a front sectional view showing a water storage tank A for cleaning a toilet bowl, and FIG. 29 is a side sectional view of the water storage tank A. The water storage tank A includes a ball tap B ′ as a water supply device, a drain valve E, and a handle device H ′ that opens and operates the drain valve E. The water storage tank A is
It has a double structure composed of a resin tank 501 made of a synthetic resin molded product, and a pottery tank cover 502 provided so as to cover the resin tank 501.

Further, the drain valve E comprises a large cleaning drain valve E1 and a small cleaning drain valve E2, and a valve seat 503 of the small cleaning drain valve E2 is provided above the valve body 504 of the large cleaning drain valve E1. While forming the drain valve E1 for large washing, the valve body 504 of the drain valve E1 for large washing and the valve body 505 of drain valve E2 for small washing are vertically stacked so that the drain valves E1 and E2 for large washing and the small washing are arranged coaxially. There is. In the drain valve E, valve elements 504 and 505 for large cleaning and small cleaning are connected to a spindle 506 of a handle device H ′ through a pulling member 507 such as a ball chain.

The handle device H ′ has a spindle 506 rotatably supported by a spindle guide 508 fixed to the side wall of the resin tank 501. The spindle 506 is connected to a handle shaft 510 of a handle 509 arranged outside the tank cover 502. The spindle 506 is provided with two arms 511 and 512, which are distributed on both sides of the rotation axis, one of which is a valve body 504 of the large cleaning drain valve E1.
On the other hand, the other is connected to the valve body 505 of the small cleaning drain valve E2 via the pulling member 507, respectively.

Therefore, in the handle device H ', the handle 509 is rotated to one side to pull up the valve body 504 of the large cleaning drain valve E1 to open the large cleaning drain valve E1 and rotate it to the other side. As a result, the valve body 505 of the small cleaning drain valve E2 can be pulled up to open the small cleaning drain valve E2.

On the other hand, the ball tap B'is a diaphragm type ball tap configured for lower water supply.
As shown in FIG. 5, the main body 513 is connected with an inflow pipe portion 514 which projects in a tubular shape and extends downward.
Is inserted into a mounting hole 515 provided at the bottom of the resin tank 501, and is vertically fixed to the resin tank 501.

FIG. 31 is an exploded perspective view showing the periphery of the ball tap B '. The body 513 of the ball tap B '
Is supported by the inflow pipe portion 514 and is located at the upper part in the resin tank 501. The main body 513 is provided with an outlet 516 for stored water of the tank and an outlet 517 for hand washing water. The outlet member 516 for storing water has a spout member 5
18, the hand-washing water outlet 517 is connected to a hand-washing connection pipe 520 which communicates with the hand-washing water discharge tool 519.

FIG. 30 is a sectional view showing the vicinity of the water outlet member 518. As shown in FIG. 30 and FIG. 31, the water discharge port member 518 is formed in a cylindrical shape, and the stored water outlet 51 is formed.
6, a water discharge port 521a is provided on the lower surface of the connection pipe 521, which projects downward, and a refill pipe 522 is connected to the tip end.
The tip of the refill pipe 522 is attached to the resin tank 50.
It faces the upper end of the overflow pipe 523 that is integrally provided in the first unit.

A water outlet member 518 is provided on the connecting pipe 521.
A rib 524 is provided on the outer peripheral surface of the base of the submerged water discharge pipe holding portion 526 for holding a water submerged water discharge pipe 525, which will be described later, at a slight distance from the lower surface of the rib. It is provided, and the submerged water discharge pipe 525 is connected through the submerged water discharge pipe holding portion 526.

The submerged water discharge pipe holding portion 526 includes a ring 526a having an inner diameter larger than the outer diameter of the water discharge port 521a, and the water discharge port 5.
21a and a spoke-shaped ring support portion 526b that protrudes from the outer periphery of the ring 21a and holds the ring 526a concentrically around the water outlet 521a, and is integrally formed with the water outlet member 518.

The water discharge port member 518 is integrally formed with the submerged water discharge pipe holding portion 526 and the rib 524 by an elastic member, and the stored water outlet 516 of the main body 513.
It is connected to this stored water outlet 516 by being pressed into.

The rib 524 has a water discharge port 521a.
Are provided on a line orthogonal to the axis of the water discharge port 521a, and the length from the tip of one rib 524 to the tip of the other rib 524 is at least the ring of the submerged water discharge pipe holding portion 526. It is formed to be larger than the outer diameter of 526a.

On the other hand, as shown in FIG. 30, the submerged water discharge pipe 5
Numeral 25 is made of a plastic tube and is located above the water surface height W (full position) when water is stopped.
And a lower pipe portion 525b which extends from the upper pipe portion 525a and is located below the water surface height W. The submerged water discharge pipe 525 has an upper end serving as a water inlet 525d (FIG. 31), and its inner diameter is set to the ring 5 of the submerged water discharge pipe holding portion 526.
26a, the outer diameter of which is the same as the outer diameter of 26a, one end of which is fitted into the ring 526a of the submersible spouting pipe holding portion 526 and is attached to the submersible spouting pipe holding portion 526 in a suspended manner.
A lower pipe portion 525b is extended downward in a manner communicating with 1a. The lower end of the lower pipe portion 525b reaches the vicinity of the bottom portion of the resin tank 501 and serves as a discharge port 525c for discharging water to the resin tank 501. In addition, the submerged water discharge pipe 525
The upper end of the submerged water discharge pipe 525 is abutted against the rib 524 and positions the submerged water discharge pipe 525 with respect to the water discharge port 521a.

With this configuration, the upper end of the submersible spouting pipe 525 is located slightly above the lower end of the spouting port 521a, and is slightly separated from the lower surface of the spouting member 518, and the inner peripheral surface of the submersible spouting pipe 525 is formed. An atmosphere opening 527 is formed between the water discharge port 521a and the outer peripheral surface of the water discharge port 521a so that the upper surface is always open to the atmosphere. Therefore, even if a negative pressure is generated on the upstream side of the ball tap B ′ for some reason, air is sucked from the atmosphere opening 527 between the inner peripheral surface of the submersible water discharge pipe 525 and the outer peripheral surface of the water discharge port 521a. , The vacuum condition is broken immediately. That is, the atmosphere opening 527 is
Acting as a vacuum breaker, submersible spout 525
It is possible to prevent the water in the resin tank 501 from flowing back to the upstream side of the spout member 518 side.

The atmosphere opening 527 is used for the submerged water discharge pipe 5.
Since it is formed in the upper pipe portion 525a located in the upper part of 25, that is, it is arranged in the resin tank 501, even if the water is splashed from the atmosphere opening 527 during the water supply, it is dripped in the resin tank 501. , Does not flow out of the resin tank 501. Further, the structure is simple because it is not the complicated valve body structure like the cube breaker described in the related art but only the atmospheric opening 527.

Further, the flow passage area of the submerged water discharge pipe 525 is
Since it is larger than the flow passage area of the water outlet 521a, the water inlet 52
A flow for sucking air into the submerged water discharge pipe 525 is likely to occur through the atmospheric opening 527 formed by a part of 5d.
Therefore, it is difficult for water to flow from the submerged water discharge pipe 525 to the submerged water discharge pipe 525 through the atmosphere opening 527 during water supply. Further, the air opening 527 does not need to be separately formed in the upper pipe portion 525a of the submerged water discharge pipe 525, and the water inlet 525
Since d is used, its configuration can be simplified.

On the other hand, the upper end of the submerged water discharge pipe 525 is
It extends slightly above the lower end of the water outlet 521a.
That is, the water outlet 521a is formed in the connecting pipe 521 formed of a pipe body, and the tip end of the connecting pipe 521 is configured to penetrate into the water inlet 525d. According to this configuration, when water is supplied from the ball tap B ′, the spout 521
a flows water into the upper pipe portion 525a from a position inside the water inlet port 525d by a distance, so that the connecting pipe 521 has a capacity corresponding to the length of the upper pipe portion 525a that enters the water inlet port 525d. It becomes a buffer space to store water. Therefore, even when the flow rate of the water flowing out from the water discharge port 521a suddenly changes, the water in the upper pipe portion 525a does not change to the atmosphere opening portion 52.
The submerged water discharge pipe 525
It can be supplied to the lower side of the reservoir surface through.

Further, the submersible water discharge pipe 525 supplies water into the resin tank 501 from the discharge port 525c provided at the lower portion of the lower pipe portion 525b, that is, from the high position provided at the upper portion of the resin tank 501 to the bottom portion of the resin tank 501. Since it does not supply water to, it does not generate a loud noise due to falling water. Moreover, since the sound of water flowing in the submerged water discharge pipe 525 is generated in the submerged water discharge pipe 525, noise is small.

The submerged water discharge pipe 525 is attached to the main body 513 via the submerged water discharge pipe holding portion 526, that is, the ring 52 of the submerged water discharge pipe holding portion 526.
When 6a is press-fitted into the water inlet 525d of the submersible spout 525, the ring 526a and the water inlet 525d are elastically deformed, and the submersible spout 525 is attached to the main body 513 in a suspended manner. Is.

Next, still another embodiment of the present invention will be described with reference to FIGS. 32 to 36. In the figure, the water storage tank A of the toilet bowl cleaning tank device is provided with a ball tap B'as a water supply device. The ball tap B ′ is configured for lower water supply, and the inflow pipe portion 601 has a pressure reducing valve portion 602.
Although a diaphragm type ball tap provided with is shown, in the case of a lateral water supply type, of course, the valve opening / closing operation is performed by the float 6
A direct-acting ball tap that is directly controlled by 03 is also optional.

In the main body 604 of the ball tap B ′, the secondary side flow path 605 is branched into a tank water supply side and a hand washing water supply side, and a water discharge port member 607 is provided on the tank water supply side via a tank water supply port 606. A hand washing connection pipe 609 is connected to the hand washing water supply side through a hand washing water supply port 608.
The main body 604 of the ball tap B ′ is made of synthetic resin, and the spout member 607 and the hand washing connection pipe 609 are made of a material having a certain degree of flexibility and rigidity, for example, TPE.

The spout member 607 is formed in a tubular shape, a refill pipe 611 is provided at the axial tip end thereof through a makeup water outlet 610, and the spout port 61 is formed on the lower surface of the axially intermediate portion.
2 is provided so as to project in the direction perpendicular to the axis. The refill pipe 611 is formed integrally with the water outlet member 607, and is formed in a shape that is gently curved downward from the tip of the water outlet member 607.

At least the inner diameter of the base portion of the water discharge port member 607 is formed to be the same as the outer diameter of the tank water supply port 606, and the base portion is fitted into the tank water supply port 606 by using its flexible elasticity. Then, it is connected to the tank water supply port 606.

Further, a projecting piece 613 axially projecting and having an engaging hole 614 is formed at the end of the spout member 607. In addition, a locking protrusion 615 that is formed to project is provided on the outer peripheral portion of the main body 604. This locking projection 6
The water discharge port member 607 is fixed to the main body 604 by engaging the engaging hole 614 of the projecting piece 613. At this time, the water outlet 612 of the water outlet member 607 is vertically oriented downward and the tip of the refill pipe 611 is arranged so as to face the upper end opening of the overflow pipe 616 provided in the water storage tank A.

The water discharge port 612 is coaxially provided with a submerged water discharge pipe holding ring 618 having a gap 617 between the water discharge port 612 and the outer peripheral surface thereof. An upper end of a submerged water discharge pipe 619 is externally fitted to the submerged water discharge pipe holding ring 618. The submerged water discharge pipe 619 is for discharging the water discharged from the water discharge port 612 to below the stored water surface of the water storage tank A, and the lower end thereof extends to the vicinity of the bottom of the water storage tank A. The submersible spout holding ring 618 secures a gap 617 provided between the outer peripheral surface of the spout 612 and the inner peripheral surface of the submerged spout 619, and the gap 617 serves as a vent hole which acts as a vacuum breaker. There is.

On the other hand, the hand-washing connection pipe 609 described above is almost L-shaped.
The main body-side connecting portion 620 is formed on one side of the bent portion, and the water discharger-side connecting portion 621 is formed on the other side of the bent portion.

The handwash connecting pipe 609 is connected to the main body side connecting portion 6
The outer diameter of 20 is formed to be the same as the inner diameter of the hand-washing water supply port 608, and the outer diameter of the water spouting tool side connection portion 621 is formed to be the same as the inner diameter of the base opening of the hand-washing water spouter 622. The main body side connecting portion 620 is connected to the main body 604 by being press-fitted into the hand-washing water supply port 608 to raise the water spouting tool side connecting portion 621 vertically, while the water spouting tool side connecting portion 62 is connected.
1 is press-fitted and connected to the base opening of the hand-washing / water-discharging tool 622.

Water spouting tool side connection portion 6 of the hand washing connection pipe 609
A narrow neck portion 623 is formed at the base portion of 21, and a notch 624 that engages with the peripheral surface of the narrow neck portion 623 is provided at the upper surface portion of the hand washing water inlet 608. With this configuration, when the hand-washing connection pipe 609 is connected to the hand-washing water supply port 608, the narrow neck portion 623 and the notch 624 are accurately engaged with each other, so that the spouting tool-side connection portion 621 of the hand-washing connection pipe 609 is vertical and It stands up coaxially with the base opening of the hand-washing / water-discharging tool 622, and its upper end is located above the lower end of the hand-washing / water-discharging tool 622.

As shown in FIG. 34, the hand-washing spout 622 is composed of a resin tank A1 whose water storage tank A is made of synthetic resin, and a ceramic cover A2 which covers the resin tank A1.
When the water storage tank A has a heavy structure, a mounting portion 626 having a groove width corresponding to the thickness of the rear wall of the water storage tank A and having a downward opening is provided on the rear surface of the base portion.

Then, by inserting and engaging the insertion slit 625 with the upper edge of the rear surface of the resin tank A1 of the water storage tank A, the hand-washing / water-discharging tool 622 is attached to the mounting portion 62.
Hold the back wall of the resin tank A1 with the water tank A
The structure is fixed to.

33, the drain valve E and the handle device H for opening and operating the drain valve E are shown.

FIG. 37 is a sectional view showing the vicinity of a water spout member 710 and a submerged water discharge pipe 720 according to another embodiment, and FIG. 38 is a plan view of the submerged water discharge pipe 720 of FIG.
37 and 38, a connecting pipe 730 is connected between the water spout member 710 and the submerged water discharge pipe 720. The connecting pipe 730 is formed obliquely downward from the water outlet member 710 and is connected to a side portion of the submerged water discharge pipe 720, and the flow passage area of the connection flow passage 730 a of the connection pipe 730 is equal to the flow of the submerged water discharge pipe 720. It is formed smaller than the road area.
That is, the connecting pipe 730 is an upstream pipe portion 731 that projects obliquely downward from a lower portion of the water spout member 710, and a downstream portion that is fitted and connected to the upstream pipe portion 731 and that projects from a side portion of the submerged water discharge pipe 720. And a tube portion 732.

As shown in FIG. 38, the connecting pipe 730 is eccentrically connected to the side of the submerged water discharge pipe 720 and eccentric to the axis of the submerged water discharge pipe 720. That is, the connecting pipe 7
30 has an inner wall surface that is tangential to the inner wall surface of the submerged water discharge pipe 720, and is connected so that water flowing out from the connection flow channel 730 a flows along the inner wall surface of the submerged water discharge pipe 720. The submerged water discharge pipe 720 is an open pipe body, and has an upper end portion serving as an atmosphere opening portion 721 and a lower end portion serving as a discharge port (not shown).

In the above structure, the connection pipe 730 is eccentrically connected to the side of the submersible spout pipe 720, so that water entering the submerged spout pipe 720 from the connection channel 730a flows along the inner wall surface of the submerged spout pipe 720. It flows spirally and is discharged from a discharge port to a resin tank (not shown). Therefore, even if the flow passage area when entering the submerged water discharge pipe 720 from the connection flow passage 730a becomes large, the water flowing in the submerged water discharge pipe 720 does not have a large vertical flow velocity and is sucked in from the atmosphere opening 721. The amount of air is small. Therefore, water is prevented from flowing out from the submerged water discharge pipe 720 to the outside through the atmospheric opening 721, and the amount of intake air through the atmospheric opening 721 is small, and noise accompanying this intake air does not occur.

FIG. 39 is a cross-sectional view showing the vicinity of a connecting portion to which a water spout member 750 and a submerged water discharge pipe 760 according to another embodiment are connected. In FIG. 39, the spout member 7
A connecting pipe 75 having a connecting flow path 751a at the lower part of 50
1 is protruded. On the outer periphery of the lower part of the connecting pipe 751,
A ring portion 752 is formed, and this ring portion 752 is formed.
Atmosphere opening 753 is formed in. The ring portion 7
52 is made of a synthetic resin and has an outer diameter slightly larger than the inner diameter of the submersible spouting pipe 760. The submersible spouting pipe 760 is hung by being press-fitted into the submersible spouting pipe 760. I support you.

In addition, at the upper part of the submersible water discharge pipe 760,
A storage part 761 is formed. This storage unit 761 is
The flow passage area is formed larger than the connection flow passage 751a of the connection pipe 751. The upper portion of the storage portion 761 has an opening 7
61a, and the lower part serves as an outlet 761b. The outlet 761b is connected to the lower pipe portion 762 of the submerged water discharge pipe 760. The flow passage area of the outlet 761b is formed smaller than the flow passage area of the connection flow passage 751a of the connection pipe 751.

In such a structure, when water is discharged into the submerged water discharge pipe 760 through the connection flow passage 751a of the connection pipe 751, the flow passage area of the outlet 761b is changed to the connection flow passage 751a.
40 is smaller than the flow passage area of No. 2, the water flowing into the connecting flow passage 751a as shown in FIG.
It is temporarily stored in 1. In this way, the connection channel 751
Even if water flows into the storage part 761 from a, the storage part 761
The flow velocity is low, the amount of intake of air from the atmosphere opening 753 is small, and noise due to intake is not generated.

The capacity of the reservoir 761 is set such that the water supplied to the resin tank reaches the full position while the water is supplied to the reservoir 761.
Although the water level in the storage unit 761 slightly rises, the capacity is set such that the water level does not flow out through the atmospheric opening 753 or the water level in the storage unit 761 is substantially balanced. As a result, almost no air is sucked into the reservoir 761 through the atmosphere opening 753, and noise can be eliminated.

FIG. 41 is a cross-sectional view showing the vicinity of the connecting portion to which the water spout member 770 and the submerged water discharge pipe 780 are connected, showing another embodiment. In FIG. 41, the spout member 77
A connecting pipe 771 having a connecting channel 771a at the bottom of 0.
Is protruding. A ring portion 772 made of synthetic resin is formed below the connecting pipe 771. The ring portion 772 is press-fitted into the opening 780a at the upper end of the submerged water discharge pipe 780 to suspend and support the submerged water discharge pipe 780. Further, a sound insulating plate 774, which is a disk-shaped member, is provided above the connecting pipe 771. This sound insulation plate 774 has a gap 77 at the upper end of the submerged water discharge pipe 780.
4a are arranged apart. Also, this gap 774a
Together with the opening 780a and the opening 772a formed in the ring portion 772 constitute an atmospheric opening 775.

In such a structure, when water is discharged into the submerged water discharge pipe 780 through the connection flow passage 771a of the connection pipe 771, the flow passage area of the submersion water discharge pipe 780 is the connection flow passage 77.
Since it is larger than the flow path area of 1a, air flows into the submerged water discharge pipe 780 through the atmospheric opening 775. In this case, since the gap 774a between the sound insulation plate 774 and the upper end of the submerged water discharge pipe 780 is larger than the opening 772a of the ring portion 772, no offensive sound is generated. Moreover, the sound insulation plate 77
4 indicates the sound of falling water in the submersible spout pipe 780.
Since it is enclosed in 80, the sound transmitted to the outside can be eliminated.

FIG. 42 is a sectional view showing a spout member 800 and a submerged spout pipe 810 according to another embodiment. The present embodiment is characterized in that the submerged water discharge pipe 810 is formed in a spiral shape, and other configurations are the same as those in the above-described embodiments. A connection pipe 801 having a connection flow channel 801a is provided in a lower portion of the water spout member 800 so as to project therefrom.
A submerged water discharge pipe 810 is connected to the submerged water supply pipe 1. Submersible spout pipe 8
10 is formed in a spiral shape over almost the entire length,
Atmosphere opening 811 is formed in the upper part, and ejection port 812 is formed in the lower part. The discharge port 812 is
Since the submerged water discharge pipe 810 itself has a spiral shape, the discharged water is discharged in the horizontal direction and is directed toward the inner wall surface of the resin tank A1.

In the above structure, the submersible water discharge pipe 810 is
Because of the spiral shape, the water flowing in the submerged water discharge pipe 810 does not directly drop from the upper portion to the discharge port 812, but flows spirally upward from the vertical direction, and the force of falling in the vertical direction is weakened. Therefore, the sound of water flowing through the submerged water discharge pipe 810 can be further reduced.

Further, since the discharge port 812 faces the inner wall surface of the resin tank A1 and is discharged toward the inner wall surface, the water discharged from the discharge port 812 flows along the resin tank A1. Therefore, the sound generated by the water discharged from the discharge port 812 while the discharge port 812 is submerged can also be reduced.

The tank device according to the present invention can be suitably applied to a wash water tank for supplying wash water into the bowl portion of a toilet bowl, and is not limited to this, and for example,
It can also be applied to a hot water storage type tank device.

In the embodiment shown in FIGS. 19 to 23, the pressure reducing unit 311 is used as the primary side flow passage 30 of the inflow pipe section 304.
Although it has only the function of decompressing the water flowing through 8,
As shown in FIG. 3 and FIG. 44, a strainer for removing dust contained in water may be added. FIG. 43 is a front view showing a cap portion 312, a valve case 313, and the like which form a part of the decompression unit 900, and FIG.
4 is a sectional view taken along line bb of FIG. 43. In the description of this embodiment, the same members as those in the embodiment shown in FIG. 22 or the members corresponding thereto are designated by the same reference numerals. FIG.
2, FIG. 43 and FIG. 44, the cap portion 312 and the valve case 313 are connected by a plurality of holding arms 322. A space 323, which is a flow path communicating with the second vertical portion 308c, is formed between the holding arms 322. The strainer 9 is provided between the cap portion 312 and the valve case 313 and inside the holding arm 322.
01 is attached. The strainer 901 is a net body woven of resin fibers and removes dust.

According to this decompression unit 900, the water passing through the first vertical portion 308a and the inclined portion 308b of the primary side flow passage 308 is decompressed, and the strainer 901 removes dust and the like to remove the second vertical portion. 308c. In addition, the depressurizing unit 900 can simultaneously attach and detach the strainer 901 that removes dust at the same time as the depressurizing action, and thus the workability can be improved.

The strainer is unitized as a pressure reducing valve as in the above-described embodiment, and is also formed separately from the pressure reducing valve, without separating the primary side flow path 308 itself.
You may make it the structure to interpose in the primary side flow path 308.

The present invention is not limited to the above-described embodiments, but can be carried out in various modes without departing from the scope of the invention.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view of a ball tap showing an example of an embodiment of the present invention.

FIG. 2 is a reduced vertical side view showing the entire water storage tank.

FIG. 3 is a cross-sectional plan view of the same.

FIG. 4 is an exploded perspective view showing attachment of a support shaft and an arm.

FIG. 5 is a vertical sectional front view of a ball tap according to another embodiment of the present invention.

FIG. 6 is an exploded perspective view showing attachment of a support shaft and an arm.

FIG. 7 is a vertical sectional front view of a ball tap showing still another embodiment of the present invention.

FIG. 8 is a vertical sectional front view of a ball tap showing still another embodiment of the present invention.

FIG. 9 is a plan view showing a part of the main part cut away.

FIG. 10 is a reduced vertical sectional side view showing the entire water storage tank.

FIG. 11 is a vertical sectional front view of a ball tap showing still another embodiment of the present invention.

FIG. 12 is a plan view showing a part of the main part cut away.

FIG. 13 is a vertical sectional front view of a ball tap showing still another embodiment of the present invention.

FIG. 14 is a reduced vertical side view showing the entire water storage tank.

FIG. 15 is a plan view showing a part of the main part cut away.

FIG. 16 is an exploded perspective view showing a main part.

FIG. 17 is a vertical cross-sectional front view of a ball tap showing still another embodiment of the present invention.

FIG. 18 is an exploded perspective view showing a main part.

FIG. 19 is a vertical sectional front view of the entire water storage tank showing still another embodiment of the present invention.

FIG. 20 is a vertical sectional side view of the same.

FIG. 21 is an enlarged sectional view of a main part.

FIG. 22 is a perspective view of an essential part showing the pressure reducing valve part in an exploded manner.

FIG. 23 is a vertical sectional side view of the entire water storage tank showing still another embodiment of the present invention.

FIG. 24 is a vertical sectional front view of the same.

FIG. 25 is an enlarged cross-sectional view of a main part.

FIG. 26 is a perspective view of a main part of the pressure reducing valve part in an exploded manner.

FIG. 27 is a partially cutaway front view of the pressure reducing valve portion.

FIG. 28 is a vertical sectional front view of the entire water storage tank showing still another embodiment of the present invention.

FIG. 29 is a vertical sectional side view of the same.

FIG. 30 is an enlarged sectional view of a vacuum breaker portion.

FIG. 31 is an exploded perspective view showing a connection relationship between a ball tap and each component connected thereto.

FIG. 32 is a cross-sectional plan view of the entire water storage tank showing still another embodiment of the present invention.

FIG. 33 is a vertical sectional front view of the same.

FIG. 34 is a vertical sectional side view of the same.

FIG. 35 is an enlarged sectional view of a vacuum breaker portion.

FIG. 36 is an exploded perspective view showing the connection relationship between the ball tap and each component connected thereto.

FIG. 37 is a cross-sectional view showing a connecting portion between a water spout member and a submerged water discharge pipe according to another embodiment.

38 is a plan view of the submerged water discharge pipe of FIG. 37 as viewed from above. FIG.

FIG. 39 is a cross-sectional view showing a connecting portion between a water spout member and a submerged water discharge pipe according to another embodiment.

FIG. 40 is an explanatory diagram illustrating the water supply operation of FIG. 39.

FIG. 41 is a cross-sectional view showing a connection portion between a water spout member and a submerged water discharge pipe according to still another embodiment.

FIG. 42 is a side view showing a partially submerged submersible spouting pipe according to another invention.

FIG. 43 is a side view showing a cap portion and a valve case of a pressure reducing unit equipped with a strainer.

44 is a cross-sectional view taken along the line bb of FIG. 43.

FIG. 45 is a side view for explaining a part around the conventional water supply device by breaking it.

[Explanation of symbols]

 A ... Water storage tank A1 ... Resin tank A2 ... Ceramic cover A3 ... Lid A4 ... Hand wash bowl A5 ... Tank opening B ... Ball tap B1 ... Pilot valve B2 ... Diaphragm valve B3 ... Valve body B4 ... Valve seat C ... Inflow pipe D ... Water supply piping E ... Drain valve E1 ... Large cleaning drain valve E2 ... Small cleaning drain valve F ... Pressure reducing valve G ... Hand wash spout H ... Handle device 1 ... Float 1a ... Upper surface 1b ... Lower surface 2 ... Support shaft 2a ... Upper shaft portion 2b ... lower shaft portion 2c ... first screw portion 2d ... parallel surface 2e ... upper end surface 2f ... inner shaft portion 2g ... outer shaft portion 2h ... third screw portion 2i ... fourth screw portion 2j ... first screw portion 2k ... upper end surface 3 ... Arm 3a ... Recessed part 3b ... 2nd screw part 3c ... Shaft attachment position 3d ... 2nd screw part 4 ... Water storage amount index 101 ... Float 101a ... Upper surface 102 ... Support shaft 102a ... 1st screw part 102b ... Water storage amount index 102c. … Upper part 1 Reference numeral 02d ... Lower part 102e ... Upper end surface 102f ... Retaining portion 103 ... Arm 103a ... Storage recess 103b ... Lid 103c ... Insertion hole 103d ... Shaft mounting position 103e ... Fitting recess 103f ... Insertion port 104 ... Swing means 104a ... Concave surface Part 104b ... Convex part 104c ... Screw hole 104d ... Through hole 104e ... Swing direction restricting part 201 ... Float 201a ... Upper surface 202 ... Support shaft 202a ... First screw part 202b ... Parallel surface 202c ... Upper end surface 203 ... Arm 203a ... Recessed portion 203b ... 2nd screw part 203c ... Shaft attachment position 204 ... Water storage amount index 204a ... Protrusion 204b ... Groove 301 ... Valve part 301a ... Pilot valve 301b ... Diaphragm valve 302 ... Float 303 ... Main body 304 ... Inflow pipe part 305 ... Inlet port 306 ... Water stopcock 307 ... Water supply connection pipe 308 ... Primary side flow path 308a 1st vertical part 308b ... inclined part 308c ... 2nd vertical part 309a ... 1st bending part 309b ... 2nd bending part 310 ... opening part 311 ... decompression unit 312 ... cap part 313 ... valve case 314 ... fall prevention member 315 ... decompression. Member 316 ... Spring receiving portion 317 ... Spring 318 ... Knob 319 ... Engaging portion 320 ... Engaging portion 321 ... O-ring 322 ... Holding arm 323 ... Interval 324 ... Seat portion 325 ... O-ring 326 ... Throttling hole 327 ... Groove 328 ... Rib 329 ... Supporting part 330 ... Lid part 331 ... Guide part 332 ... Protrusion 401 ... Valve part 401a ... Pilot valve 401b ... Diaphragm valve 402 ... Float 403 ... Main body 404 ... Inlet port 405 ... Water supply pipe 406 ... Inflow pipe part 407 ... Primary Side flow passage 407a ... Flow passage 407b ... Flow passage 408 ... Opening portion 409 ... Pressure reducing valve installation 410 ... Pressure reducing valve portion 411 ... Cap 413 ... Knob 414 ... O-ring 415 ... Spring receiving portion 416 ... Holding arm 417 ... Fall prevention member 418 ... Pressure reducing member 419 ... Step portion 420 ... Spring 421 ... Throttle hole 422 ... Projection portion 423 ... Support portion 424 ... Locking portion 425 ... Engaging portion 426 ... Guide portion 427 ... Protrusion 428 ... O ring 501 ... Resin tank 502 ... Tank cover 503 ... Valve seat 504, 505 ... Valve body 506 ... Spindle 507 ... Pulling member 508 ... Spindle guide 509 ... Handle 510 ... Handle shaft 511,512 ... Arm 513 ... Main body 514 ... Inflow pipe part 515 ... Mounting hole 516 ... Stored water outlet 517 ... Hand wash outlet 518 ... Spout member 519 ... Hand wash spout Tool 520 ... Hand wash connection pipe 521 ... Connection pipe 521a ... Water discharge port 522 ... Liffey Pipe 523 ... Overflow pipe 524 ... Rib 525 ... Submerged water discharge pipe 525a ... Upper pipe portion 525b ... Lower pipe portion 525c ... Discharge port 525d ... Water inlet port 526 ... Submerged water discharge pipe holding portion 526a ... Ring 526b ... Ring support portion 527 ... Atmosphere opening Part 601 ... Inflow pipe part 602 ... Pressure reducing valve part 603 ... Float 604 ... Main body 605 ... Secondary side flow path 606 ... Tank water supply port 607 ... Water spout member 608 ... Hand wash water supply port 609 ... Hand wash connection pipe 610 ... Makeup water intake port 611 ... Refill pipe 612 ... Water discharge port 613 ... Projection piece 614 ... Engagement hole 615 ... Locking protrusion 616 ... Overflow pipe 617 ... Gap 618 ... Submerged water discharge pipe holding ring 619 ... Submerged water discharge pipe 620 ... Main body side connection part 621 ... Water discharge Tool side connection part 622 ... Hand wash spout 623 ... Neck neck 625 ... Slit 626 ... Mounting part 710 ... Vomiting Mouth member 720 ... Submerged water discharge pipe 721 ... Atmosphere opening 730 ... Connection pipe 730a ... Connection flow passage 731 ... Upstream pipe portion 732 ... Downstream pipe portion 750 ... Water discharge member 751 ... Connection pipe 751a ... Connection flow passage 752 ... Ring portion 753 Atmosphere opening 760 ... Submerged water discharge pipe 761 ... Storage part 761a ... Opening part 761b ... Outflow port 762 ... Lower pipe part 770 ... Water discharge member 771 ... Connection pipe 771a ... Connection flow passage 772 ... Ring part 772a ... Opening 774 ... Sound insulation Plate 774a ... Gap 775 ... Atmosphere opening 780 ... Submerged water discharge pipe 780a ... Opening 800 ... Water discharge member 801 ... Connection pipe 801a ... Connection flow path 810 ... Submerged water discharge pipe 811 ... Atmosphere opening 812 ... Discharge port 900 ... Pressure reduction unit 901 ... Strainer 1000 ... Wash water tank 1001 ... Tank body 1001a ... Mounting hole 1002 ... Ball -Up 1003 ... the main pipe 1004 ... the main valve 1005 ... cooperation mechanism 1006 ... float 1007 ... water discharge pipe 1008 ... pressure reducing valve 1008a ... ring body 1009 ... water pipe

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Tomokazu Goda 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka Prefecture Totoki Equipment Co., Ltd. (72) Kuniharu Shigematsu 2 Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka 1-2-1 Totoki Equipment Co., Ltd. (72) Inventor Masaaki Hayashi 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture Totoki Equipment Co., Ltd.

Claims (7)

[Claims] 1. A flow path forming member having a flow path, and a mounting opening provided on the flow path forming member, one end of which is connected to the middle of the flow path and the other end of which is open to the outside. An attachment portion having an attachment space; and a valve means having a fluid function portion that is attachable to and detachable from the attachment space through the attachment opening, and that has a fluid function portion that is interposed in the flow channel when attached to the attachment space. The flow channel device, wherein the fluid function unit includes a fluid control unit that controls the pressure of the fluid flowing through the flow channel. 2. The flow path device according to claim 1, wherein the valve means includes a support portion detachably supported in the mounting space and the fluid function portion is unitized. 3. The flow channel device according to claim 2, further comprising a seal member that is interposed between the support portion and a wall surface that forms the mounting space and seals between the flow channel and the outside. 4. A tank main body for storing the cleaning water for supplying the cleaning water to a toilet bowl, and a water supply which is disposed in the tank main body and is connected to a water supply source and supplies the cleaning water into the tank main body. A flush water tank for a toilet having a pipe, wherein the flow channel device according to claim 1 is provided in the water supply pipe. 5. A tank main body for storing cleaning water for supplying cleaning water to a toilet bowl and having a tank opening at an upper portion, a lid for closing the tank opening, a water supply source disposed in the tank main body, and a water supply source. In a flush water tank for a toilet having a water supply pipe connected to the tank body and supplying flush water into the tank body, the flow passage device according to claim 1 is provided in the vicinity of the tank opening. Wash water tank. 6. The cleaning water tank according to claim 5, wherein the mounting opening is arranged facing the tank opening side, and the mounting space is formed so that the valve means can be detachably mounted through the tank opening. . 7. A flow path forming member having a flow path, and a mounting opening provided on the flow path forming member, wherein one end is connected to the middle of the flow path and the other end is open to the outside. A mounting portion having a space, and a fluid function means that is removable from the mounting space through the mounting opening and that has a fluid function portion that is interposed in the flow path when mounted in the mounting space. The fluid function unit includes a strainer that captures a solid matter of the fluid flowing through the flow channel.