JP3000393B2 - Water supply device for two-tank type receiving tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water replenishing apparatus for replenishing water to both the A and B chambers of a two-tank type water receiving tank in which the inside of a water tank main body is partitioned into a room A and a room B by a partition wall. .

[0002]

2. Description of the Related Art Such a two-tank type water receiving tank is conventionally known. The two-tank type water receiving tank is always used as a one-tank type water receiving tank by always connecting the partitioned A and B chambers with a communication pipe that is piped outside the tank body, and inspects and cleans the inside. In this case, the on-off valve provided in the middle of the communication pipe is closed to shut off the communication between the A and B chambers. For example, the water in the A room is emptied, inspected and cleaned, and during that time, the water in the B room is supplied. At the same time, if the amount of water decreases, replenish water, and if the inspection and cleaning of room A is completed, A
After the room is full, empty the water in the room B and inspect and clean it. During that time, supply the water in the room A, and when the amount of water decreases, receive water supply and when the inspection and cleaning of the room B are completed. After the chamber B is filled with water, the on-off valve is opened, and the chambers A and B are communicated again. Thereby, water can be supplied to either of the chambers A and B at the time of inspection and cleaning of the tank, and interruption of water supply can be avoided.

[0003]

As described above, one of the two chambers A and B is supplied with water in the other chamber during inspection and cleaning, and when the amount of water is reduced, the main valve and the ball tap are provided. A, B to supply tap water with a fixed water level valve consisting of
In addition to providing a sub-tank for replenishing water with the constant water level valve in both chambers, it was necessary to provide electrodes for monitoring the water levels in the A and B chambers in both the A and B chambers.

[0004]

Therefore, in the first aspect of the present invention, the constant water level valve and the sub-tank are shared by both the A and B chambers, and the inside of the water tank body is a partition wall. In the two-tank type water receiving tank partitioned into the chamber A and the chamber B, a sub-tank in which tap water is supplied via a constant water level valve including a main valve and a ball tap is installed inside the water tank main body, Inside the A room, one end is fixed to the outer wall of the A room and the A room water conduit is connected to the A room, and one end is fixed to the partition wall and the B room water conduit is connected to the B room. Opposite A- and B-room valve seats, and one of the A- and A-room valve seats opened and closed by switching from the outside to the outside of the water tank body. Also, an open / close switching valve having a valve plate inside the valve cylinder that can open both valve seats together is provided in the A room, The other end of the A-room water pipe is connected to the A-chamber valve seat of the switching valve, and the other end of the B-room water pipe is connected to the B-chamber valve seat. A branch pipe opened at an interval between the seat cylinder and the B-chamber valve seat cylinder is provided, a supply pipe having a lower end communicating with the branch pipe is erected, and an upper end of the supply pipe is communicated with the sub tank.

In order to share the electrode for monitoring the water level in both the A and B chambers, the inside of the supply pipe of the first embodiment is divided into two by a vertical partition wall. A water pipe is connected to one section, and an electrode for water level monitoring is suspended from the top inside the other section, or an auxiliary pipe whose lower end communicates with the branch pipe of claim 1 as in claim 3. A pipe may be erected, and an electrode for monitoring the water level may be erected from above the auxiliary pipe.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In each of the illustrated embodiments, reference numeral 1 denotes a water tank body,
The interior is partitioned by a partition wall 2 into a room A and a room B having almost the same capacity. Inside the room A, one end is the outer wall a of the room A.
, And communicates with the room A through an opening in the peripheral surface.
A chamber water pipe 3 and a B-room water pipe 4 whose one end is fixed to the opening of the partition wall 2 by flange connection or the like and communicates with the B chamber are piped. Connect to

The open / close switching valve 5 includes an A-chamber valve seat cylinder 3 'and a B-chamber valve seat cylinder 4' opposed to each other inside a valve cylinder 5 ', and a push-pull operation from outside the water tank main body. A valve plate 6 that can be opened and closed by switching one of the seat cylinder 3 'and the B chamber valve seat cylinder 4' to open and the other to close, or both the valve seat cylinders 3 'and 4' can be opened.
The other end of the opposed A-room water pipe 3 is connected to the A-room valve seat cylinder 3 ', and the other end of the B-room water pipe 4 is connected to the B-room valve seat cylinder 4'. The valve cylinder 5 'of the open / close switching valve has a T-shape, and a branch pipe 7 opened at an interval between the A-chamber valve seat cylinder 3' and the B-chamber valve seat cylinder 4 '.
Having.

A sub-tank 11 to which tap water is supplied by a well-known constant water level valve 8 comprising a main valve and a ball tap (sub-valve) is installed above the inside of the water tank main body. The main valve 9 of the constant water level valve is provided in the middle of the water inlet pipe 12 for supplying tap water to the inside of the sub-tank 11 and connected outside the water tank body, and the ball tap 10 projects from the main valve 9 into the inside of the sub-tank 11. It is provided at the tip of the pilot tube 13.

The sub-tank 11 is in contact with the partition wall 2 and A, B
It may be installed inside one of the two rooms (Fig. 1,
7), it may be placed on the notch 14 provided at the upper end of the partition wall 2 and installed over both the A and B chambers (FIG. 6).
In any case, the upper part of the sub-tank 11 projects upward from the ceiling wall of the water tank main body 1, and the lid 11 'of the sub-tank can be removed with bolts, nuts, etc., and removed and opened for maintenance, inspection, and cleaning. To be able to put.

When the sub-tank is installed inside the room A (or room B), the lower end of the branch pipe 7 communicates with the inside of the room, and when the sub-tank is installed over both the rooms A and B, either room. The supplied supply pipe 15 is erected, and the upper end of the supply pipe is connected to the bottom of the sub tank 11 to communicate with the inside of the sub tank.

A vent 16 is provided on the lid of the sub-tank and on the ceiling wall of both the A and B rooms to allow the inside to communicate with the outside air.
Manholes 17 are provided on the ceiling walls of both the rooms A and B, and the manholes are opened so that workers can enter the room and clean the room. Further, the sub-tank 11 is supplied with water in the tank, and overflows to drain excess water to the outside of the water tank main body when water supply does not stop even if the water level exceeds a predetermined upper limit water level due to a failure of the constant water level valve 8. Connect the water pipe 18.

[0012] One end of the A room water pipe 3 is fixed to the outer wall a of the A room and communicated with the A room.
In order to move the valve plate 6 in the axial direction within the valve cylinder 5 ′, the A-chamber valve seat cylinder 3 ′ is screwed and connected to the inner circumference at one end , and the opening 20 is provided on the peripheral wall, and the end plate 21 is provided at the other end. The end plate 21 is provided with a thin hollow cylinder 22 having a male screw on the outer periphery and projecting concentrically. The hollow cylinder 22 has a handle 23 at the outer end, and the distal end passes through the inside of the A-room water pipe 3 and the A-room valve seat cylinder 3 ′, and
The rotating shaft 24 reaching the chamber valve seat cylinder 4 'penetrates, and the rotating shaft 24 has a male screw 25 at a portion protruding into the valve cylinder 5'. The male screw 25 is engaged with the center of the valve plate 6 in the valve cylinder 5 ', which can close the ends of the valve seat cylinders 3', 4 'in both the A chamber and the B chamber. A female screw cylinder 26 having a female screw on the inner periphery is fixed.

[0013] One end of the previous SL A chamber conduit 3 to be fixed to the outer wall of the chamber A, the outer wall a, opened a hole through which the hollow cylinder 22 to one end portion opposite to the A chamber water conduit 3, Packing The hollow tube 22 fitted with is inserted from the room through the hole to protrude outward, and a nut 27 is fitted into the hollow tube from the outside and tightened to the outer surface of the outer wall a to fix the A room water pipe 3 to the inner surface of the outer wall. Sealing is performed by compressing the packing fitted into the hollow cylinder between the end plate 21 and the inner surface of the outer wall. Then, a rotary shaft 24 fitted with a cap nut 28 screwed into a male screw on the outer periphery of the hollow cylinder 22 is inserted into the hollow cylinder 22 from the outside, and the female screw cylinder 26 at the center of the valve plate 6 placed in the valve cylinder 5 '. Inside the male screw 25 of the rotating shaft 24
, And the tip of the rotating shaft is positioned near the B chamber valve seat cylinder 4 ′. In this state, the cap nut 28 is lightly tightened to a male screw on the outer periphery of the hollow cylinder 22, and the end face of the hollow cylinder 22 and the cap nut 2
8, the flange 24 ′ provided on the rotating shaft 24 is lightly sandwiched to prevent the rotating shaft 24 from moving in the axial direction. Then, the handle 23 is fixed to the outer end of the rotating shaft 24.
A notch 29 is provided on the peripheral edge of the valve plate 6, and this notch is engaged with a ridge 30 provided in the axial direction inside the valve cylinder 5 '.
This prevents the valve plate 6 from rotating.

When the A-room water pipe 3 is fixed to the outer wall a in this manner , the A-room valve seat 3 ' is provided at the other end of the A-room water pipe 3, and the B-room valve seat 4' is provided at the other end of the B-room water pipe 4. the coupling by, for example, each screwing.

The open / close switching valve 5 is arranged such that when the valve plate 6 is in a neutral position separated from both the A and B valve seat cylinders 3 'and 4' in the valve cylinder 5 ', the two valve seat cylinders 3' and 4 ' Open, rotate shaft 2 from this position
4 is rotated in one direction, the valve plate 6 is pulled, and the A-chamber valve seat cylinder 3 '
And turn it in the opposite direction, push the valve plate 6
The chamber valve seat cylinder 4 'can be closed.

The chamber A and the chamber B are communicated with each other, and the valve plate 6 of the open / close switching valve 5 is set to the neutral position in order to use the same as a one-tank type water tank. Thereby, the A room and the B room communicate with each other via the A room water conduit 3, the B room water conduit 4, and the open / close switching valve 5 connecting both the tubes.
The water levels in both the A and B chambers and the supply pipe 15 are the same.
When the water in both chambers A and B is supplied to the outside and the water level in the sub-tank falls accordingly, the float 1 of the ball tap 10
0 'also goes down. When the float descends to a predetermined position, the ball tap 10 opens and the upstream pipe 1 of the water inlet pipe 12 is opened.
Tap water reaching the ball tap through the main valve 9 and pilot pipe 13 which are closed from 2 'is supplied to the sub tank at a small flow rate. When the water supply by the ball tap 10 starts, the pressure changes inside the main valve 9, the main valve 9 is fully opened, and tap water is supplied from the main valve to the sub-tank at a large flow rate through the downstream pipe 12 ″ of the water inlet pipe. Is done.

When the tap water is replenished in the sub-tank 11 and the water levels in both the A and B chambers and the sub-tank rise, the float 10 'of the ball tap also rises, and when the water level comes to just before the upper limit, the ball tap closes. The opposite pressure change occurs inside the main valve, and the main valve closes before the water supply ends. Even if the water level reaches the upper limit due to the failure of the constant water level valve 8, the supply of water does not stop. If the water exceeds the upper limit water level, the overflow pipe 18 drains out to prevent the water level from rising further. . In order to prevent the float 10 'of the ball tap from violently moving with the replenished water during the replenishment of water and to prevent a breakdown, the downstream pipe 12 "of the water inlet pipe protruding into the sub tank.
It is preferable to place the tip of the container downward so as to protrude into the supply tube 15.

When inspecting and cleaning the inside of the A-room, the A-room valve seat cylinder 3 'is closed by the valve plate 6 of the open / close switching valve 5. As a result, the open / close switching valve 5 communicates with the chamber B via the valve chamber 4 'of the chamber B and the water pipe 4 of the chamber B, but is shut off from the chamber A.
The water in the room A can be drained from the drain to check and clean the room. In the meantime, outside water is supplied from the room B, and when the water level in the room B decreases, the water in the water receiving tank and the tap water are supplied to the inlet pipe 12, the supply pipe 15, the open / close switching valve 5, and the chamber B as described above. The water is supplied to the room B via the water pipe 4 and the water level is restored.

After the inspection and cleaning of the chamber A are completed, the valve plate 6 of the switching valve 5 is set to the neutral position, and the water levels of the chambers A and B are raised to a predetermined state. Also, by closing the B-chamber valve seat cylinder 4 'with the valve plate 6 of the open / close switching valve, the inspection and the like of the B-chamber can be similarly performed.
During the cleaning, the water in the room A is supplied to the outside, and when the water level in the room decreases, the water in the water receiving tank and the tap water are replenished to recover the water level.

Thus, the A room water pipe 3 and the B room water pipe 4
By operating the open / close switching valve 5 connected from outside the tank, water supply to both the A and B chambers and water supply to the A chamber and the B chamber can be performed.

The constant water level valve 8 automatically starts the supply of tap water when the water level in the sub-tank drops and stops the supply when the water level recovers. The electrodes are used to monitor abnormalities in which water supply is not performed and to monitor abnormalities in which water supply does not stop even when the water level recovers. The electrodes 31 may be vertically installed from the ceiling walls of the rooms A and B, but two sets of the room A and the room B are required. To complete this in one set, supply pipe 1
5 is divided into two by a vertical partition wall 15 ′, and an electrode 31 is suspended from above (FIG. 6) inside one of the divisions. Auxiliary pipe 32 whose lower end communicates with
The A, B standing on either chamber, the electrodes 3 1 to vertically from above into the auxiliary tube (1, 7).

In the case where the electrode 31 is vertically provided in one of two sections inside the supply pipe defined by the vertical partition wall 15 '(FIG. 6).
It is preferable that the cross-sectional shape of the supply pipe is elliptical or oval, and a vertical partition wall 15 'is provided in the short axis direction. The vertical partition wall 15 'is water supplied from the water inlet pipe 12 into the other section of the supply pipe to prevent the water in one section from which the electrode hangs from waving. Therefore, it is not necessary to provide the entire height of the supply tube, and the lower end may be located slightly below the lower end of the electrode having a long downward length from the upper end of the supply tube. Then, the upper end of the electrode 31 is fixed to the lid 11 ′ of the sub-tank or attached to the ceiling wall of the room A or the room B.

Auxiliary pipe 32 whose lower end communicates with branch pipe 7 is denoted by A,
In the case of standing in either of the rooms B, the upper end of the auxiliary pipe 32 is connected to the bottom of the sub-tank 11 to communicate with the inside of the sub-tank, and the electrode hanging down from the lid of the sub-tank as shown in FIGS. Of the 31s, the longer one may be received (the electrode for detecting that the downward length is short and the supply of water does not stop even if the upper limit water level is exceeded is placed in the sub tank). The upper end of the auxiliary tube may be connected to the ceiling wall of one of the two rooms A and B, which are erected in the room, and the entire electrode 31 may protrude into the auxiliary tube from above (FIG. 7 ).

Further, the sub-tank 11 may be a large one as shown in FIGS. 1 and 6, or a small one as shown in FIGS. Furthermore, the inside of the sub-tank is partitioned by a partial partition 33 between a portion where the ball tap 10 is located and a portion where the upper end of the supply pipe 15 communicates, and when the water inlet pipe 12 supplies water to the sub-tank or the supply pipe. The wave generated may prevent the float of the ball tap from swinging.

In each of the illustrated embodiments, the A-room water pipe 3 and the A-room valve seat 3 'and the B-room water pipe 4 and the B-room valve seat 4' are separated and connected. It may be a series.

The A-room water pipe 3, the B-room water pipe 4, and the open / close switching valve 5 may be provided inside the B-room. In that case B
One end of the room water pipe 4 is fixed to the outer wall of the room B and communicates with the room B, and one end of the water pipe of the room A is fixed to a partition wall and communicates with the room A.

Further, in the illustrated embodiment, the open / close switching valve 5 is of a type that pushes and pulls the valve plate 6 in the axial direction.
The present invention is not limited to this, and any rotary valve having the same function can be used.

[0028]

According to the present invention, a sub-tank 11 for supplying tap water from a water inlet pipe 12 through a constant water level valve 8 composed of a main valve 9 and a ball tap 10 is installed inside the water tank main body. One of two chambers A and B partitioned by a partition wall 2 inside 1, an inside of the A chamber, an A chamber water pipe 3 having one end fixed to the outer wall of the A chamber and communicating with the inside of the A chamber; A B-room water pipe 4 having one end fixed to the partition wall 2 and communicating with the inside of the B chamber is connected. The opposite ends of the two water pipes 3 and 4 are connected to an open / close switching valve 5 and open / closed. A supply pipe 15 is erected on the branch pipe 7 provided in the valve 5, and the upper end of the supply pipe communicates with the sub-tank. Water can be replenished either alone or in room B alone. Both chambers A and B can be separately supplied via a fixed water level valve. It is possible to eliminate the device or a double complexity of piping when installing the sub-tank that way water is replenished.

According to the second and third aspects, the double complexity of providing the electrodes for monitoring the water level in both the A and B chambers can be eliminated.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a water receiving tank according to the present invention.

FIG. 2 is an enlarged sectional view of a main part of FIG.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is an enlarged sectional view of the open / close switching valve of FIG. 1;

FIG. 5 is a sectional view taken along line VV in FIG. 4;

FIG. 6 is a perspective view of another embodiment of the water receiving tank according to the present invention.

FIG. 7 is a front view of a main part of still another embodiment of the water receiving tank according to the present invention.

FIG. 8 is a side view of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water tank main body 2 Partition wall 3 A-room water pipe 3 'A-room valve seat pipe 4 B-room water pipe 4' B-room valve seat pipe 5 Open / close switching valve 5 'Valve pipe 6 Valve plate 7 Branch pipe 8 Constant water level valve 9 Main valve 10 Ball tap 11 Sub tank 12 Water inlet pipe 13 Pilot pipe 15 Supply pipe 31 Electrode

Continuation of the front page (56) References JP-A-2-129096 (JP, U) JP-A-56-138974 (JP, U) Patent 2869957 (JP, B2) (58) Fields investigated (Int. Cl. ⁷⁾ , DB name) B65D 90/00 E03B 11/00

Claims (3)

(57) [Claims] 1. A two-tank type water receiving tank in which the inside of a water tank main body is partitioned into a room A and a room B by a partition wall, and a constant water level valve comprising a main valve and a ball tap is provided inside the water tank main body. A sub-tank for supplying tap water is installed, and
Inside the chamber, one end is fixed to the outer wall of the A room and the A room water pipe is connected to the A room, and one end is fixed to the partition wall.
A B-room water pipe communicating with the room is piped, and the A-chamber valve seat cylinder and the B-chamber valve seat cylinder which are opposed to each other, and the A-chamber valve seat cylinder and the B-chamber valve seat cylinder are operated from outside the water tank body. An A / C switch valve having a valve plate inside the valve cylinder that can be opened and closed by switching one to open and the other to be closed, or both valve seats can be opened together, is provided in the A chamber. One end is connected to the A-chamber valve seat of the open / close switching valve, and the other end of the B-room water pipe is connected to the B-chamber valve seat, respectively. A two-tank type water receiving tank, wherein a branch pipe having an opening at an opposing interval of a seat cylinder is provided, a supply pipe having a lower end communicating with the branch pipe is erected, and an upper end of the supply pipe is communicated with a sub-tank. Water supply device. 2. The supply pipe according to claim 1, wherein the inside of the supply pipe is divided into two by a vertical partition wall, and an electrode for monitoring a water level is suspended from above in one of the divisions. Water supply device for tank type receiving tank. 3. A two-tank type water receiving tank, wherein an auxiliary pipe having a lower end communicating with the branch pipe according to claim 1 is erected, and an electrode for monitoring a water level is vertically installed in the auxiliary pipe from above. Water supply device.