JP2002146755A - Drainage system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drainage system capable of simplifying a structure and selectively conducting two-way drainage, that is, forward-direction drainage and reverse-direction drainage by simple switching operations. SOLUTION: A partition part 10, installed to partition one water area 1 and the other water area 2, is provided with a drainage pump 4 rotatable in normal and reverse directions, wherethrough both of the water areas 1 and 2 are communicated with each other. An opening at one end of the pump casing 4B of the pump 4 is made to face onto the water area 1 and fitted openably/ closably with a flap valve 5A. An opening at the other end thereof is made to face onto the water area 2 and fitted openably/closably with a flap valve 5B. The flap valve 5A is opened, and the pump 4 is rotated in the normal direction so as to discharge water in the water area 1 into the water area 2. The flap valve 5B is opened, and the pump 4 is rotated in the reverse direction so as to discharge water in the water area 2 into the water area 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a drainage device,
In particular, the present invention relates to a drainage device that can selectively perform drainage from one water area to another water area or drainage from another water area to one water area.

[0002]

2. Description of the Related Art Conventionally, as a drainage device, as shown in FIG. 10, a drainage pump 4 composed of a horizontal axis submersible pump is installed in a partition part 3 for separating one water area 1 and the other water area 2, and this drainage pump is provided. The two water areas 1 and 2 are communicated with each other via a drain 4, and an opening of the drain pump 4 facing the other water area 2 allows a flow from one water area 1 to the other water area 2 and the other water area 2. There is known a structure in which a flap valve 5 which opens and closes so as to stop the flow from the water to one water area 1 is mounted. In addition, the drainage pump 4 includes a pump body 4A and a pump casing 4B having a cylindrical opening at both ends and accommodating the pump body 4A.

According to the conventional drainage device, when the drainage pump 4 is operated, the water in one water area 1 flows inside the pump casing 4B toward the other water area 2 and pushes the flap valve 5 to open the other. The water is drained to water area 2. When the operation of the drainage pump 4 is stopped, drainage from one water area 1 to the other water area 2 is stopped, and the flap valve 5 is stopped.
Is automatically closed by the combined action of its own weight and the water pressure of the other water area 2, and backflow from the other water area 2 to the one water area 1 is prevented.

As described above, in the conventional drainage device, the drainage direction is limited to only the forward direction from one water area 1 to the other water area 2, and the drainage direction in the reverse direction from the other water area 2 to one water area 1 is limited. Despite the demand, it was not possible to drain in the reverse direction.

[0005] Therefore, the applicant of the present invention has considered a drainage device capable of draining in two directions, a forward direction and a reverse direction. In this drainage device, as shown in FIG. 11, an intermediate water area 7 is interposed between one water area 1 and the other water area 2 via gates 6A and 6B which can be moved up and down. Is installed, and the drainage pipe of this vertical shaft drainage pump 8 is
One drain pipe 8A extending to the other water area 2 and another drain pipe 8B extending to the other water area 2 are branched, and one switching pipe 9A is interposed in one drain pipe 8A and the other is connected to the other drain pipe 8B. The switching valve 9B is interposed.

According to the drainage device configured as described above,
With the gate 6B closed, the gate 6A is opened as shown by a two-dot chain line, water in one water area 1 flows into the intermediate water area 7, one switching valve 9A of the vertical shaft drain pump 8 is closed, and the other is closed. By opening the switching valve 9B and operating the vertical shaft drainage pump 8, one of the water areas 1 flowing into the intermediate water area 7 is opened.
Is drained to the other water area 2 via the other drain pipe 8B of the vertical shaft drain pump 8. Conversely, when the gate 6A is closed, the gate 6B is opened as shown by a two-dot chain line,
The water in the other water area 2 is caused to flow into the intermediate water area 7, and the other switching valve 9B of the vertical shaft drain pump 8 is closed and the one switching valve 9 is opened.
By opening the valve A and operating the vertical drainage pump 8, the water in the other water area 2 that has flowed into the intermediate water area 7 is drained to the one water area 1 through one drainage pipe 8A of the vertical drainage pump 8. be able to.

[0007]

That is, according to the drainage device shown in FIG. 11, two-way drainage in the forward direction and the reverse direction, which was impossible in the conventional drainage device described with reference to FIG. Is possible. However, the gate 6
Not only are A and 6B and switching valves 9A and 9B necessary, but also an elevating device for raising and lowering (opening and closing) the gates 6A and 6B and a controller for controlling opening and closing of the switching valves 9A and 9B are separately required. It is complicated, and when the drainage direction is switched, the gates 6A, 6B are raised and lowered, and the switching valves 9A,
Since a complicated operation such as opening and closing of 9B is required, there is a disadvantage that switching of the drainage direction is troublesome.

Accordingly, an object of the present invention is to provide a drainage device which simplifies the structure and which can selectively perform two-way drainage of forward drainage and reverse drainage by a simple switching operation. I have.

[0009]

In order to achieve the above object, a drainage device according to the present invention is provided in a partition section for partitioning one water area and the other water area, and the drainage apparatus is provided with one water area. A drainage device that can select drainage to the other water area or drainage from the other water area to one water area, wherein the two water areas communicate with each other via a forward / reverse rotatable drain pump installed in the partition. And a flap valve that opens and closes so as to allow flow from the opposite water area and stop flow to the opposite water area at both end openings facing the both water areas of the drain pump. And

[0010] The drainage device according to the second aspect of the present invention is installed in a partition part that separates one water area from the other water area, and drains water from one water area to the other water area or one water area from the other water area. A drainage device that can select drainage to the water area, wherein the two water areas communicate with each other via a forward / reverse rotatable drain pump installed in the partition part, and face the two water areas of the drain pump. A flap valve that can be attached to and detached from at least one of the both-end openings at both ends thereof, allows the flow from the water area on the opposite side to the mounting side, and opens and closes to stop the flow to the opposite water area. Is attached.

Further, the drainage device according to the third aspect of the present invention is a drainage device capable of selecting drainage from one water area to the other water area or drainage from the other water area to one water area communicating with each other. A partition wall for partitioning the two water areas is detachably attached to a boundary between the two water areas, and a drain pump for connecting the two water areas to each other is mounted on the partition wall. A flap valve, which opens and closes so as to allow flow from the water area on the opposite side and stop flow to the water area on the opposite side, is attached to one of the openings facing both ends.

According to the first aspect of the present invention, by opening the flap valve attached to the opening facing one of the water areas and rotating the drain pump forward, the water in one of the water areas becomes the other water area. The flap valve attached to the opening facing the opening is pushed open and drained to the other water area. Also, by opening the flap valve attached to the opening facing the other water area, and by rotating the drainage pump in reverse, the water in the other water area has the flap valve attached to the opening facing the one water area. It is pushed down and drained into one water area. further,
Even if there is a water level difference between one water area and the other water area when the drain pump is stopped, by closing the flap valve, the water stops from the high water side to the low water side due to the water stopping action of the flap valve. The flow can be stopped.

According to the second aspect of the present invention, the flap valve is attached only to the opening facing the other water area, the flap valve at the opening facing the one water area is removed, and the drainage pump is rotated forward. The water in one water area is pushed to the flap valve and drained to the other water area. Also, by attaching a flap valve only to the opening facing one water area, removing the flap valve at the opening facing the other water area, and rotating the drainage pump in reverse, the water in the other water area pushes the flap valve. Widely drained into one water area. Furthermore, even if there is a water level difference between one water area and the other water area when the drain pump is stopped, a flap valve is attached to the opening facing the water area on the high water level side, so that the water stop action of the flap valve is achieved. Thus, the flow of water from the high water level to the low water level can be stopped.

According to the third aspect of the present invention, the opening for mounting the flap valve is oriented so as to face the other water area, the partition wall is mounted on the boundary between the two water areas, and the drain pump is operated. Thereby, the water in one water area pushes the flap valve open and is drained to the other water area. Also, by directing the opening where the flap valve is installed so as to face one water area, mounting the partition wall at the boundary between the two water areas, and operating the drainage pump, the water in the other water area pushes the flap valve. Widely drained into one water area. Furthermore, even if there is a water level difference between one water area and the other water area when the operation of the drainage pump is stopped, the opening for attaching the flap valve is directed so as to face the water area on the high water level side, and the partition wall is formed. Is attached to the boundary between the two water areas, the flow of water from the high water level to the low water level can be stopped by the water stopping action of the flap valve.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional side view showing one embodiment of the invention described in claim 1. The same parts as those of the conventional example and the comparative example are denoted by the same reference numerals, and the redundant description of the structure will be omitted. In FIG. 1, a partition 10 that partitions one water area 1 and the other water area 2 is provided, and a drain pump 4 that can rotate forward and reverse is installed in the partition section 10. The water area 1 and the other water area 2 communicate with each other.

The forward / reversely rotatable drain pump 4 comprises an outer rotor type horizontal shaft submersible pump having a pump body 4A and a cylindrical pump casing 4B having both ends open and containing the pump body 4A. One end opening of the pump casing 4B faces one water area 1 and the other end opening faces the other water area 2. One flap valve 5A is attached to one end opening so as to be openable and closable. The other flap valve 5B is attached to the portion so as to be openable and closable.

The one flap valve 5A is connected to one of the switches 11A provided at the top of the partition section 10 via a wire or a ring chain 12, and operates one of the switches 11A manually or automatically. It can be opened and closed by winding or unwinding the wire or the ring chain 12. Further, the other flap valve 5B is connected to the other switch 11B installed on the top of the partition 10 by a wire or ring chain 1B.
2, and can be opened or closed by operating the other switch 11B manually or automatically to wind or unwind the wire or ring chain 12.

In the above structure, as shown in FIG. 2, one switch 11A is operated to open one flap valve 5A, and the forward / reversely rotatable drain pump 4 is rotated forward, so that one water area is opened. The water 1 is drained to the other water area 2 by pushing the other flap valve 5B open as indicated by a two-dot chain line. As shown in FIG. 3, the other switchgear 11B operates to open the other flap valve 5B and reversely rotate the forward / reversely rotatable drainage pump 4 so that the water in the other water area 2 is one-way. 5A is drained to one of the water bodies 1 by being pushed open as shown by a two-dot chain line. That is, claim 1
The drainage device according to the invention described in (1), the selection of two-way drainage of forward drainage and reverse drainage can be performed by a simplified structure and a simple switching operation as compared with the drainage device of FIG. 11. it can.

Further, even if there is a water level difference between one water area 1 and the other water area 2 in a state where the drain pump 4 which can rotate forward and backward is stopped, the flap valves 5A and 5B are closed as shown in FIG. Accordingly, the flow of water from the high water level to the low water level can be stopped by the water stopping action of these flap valves 5A and 5B.

Next, an embodiment of the present invention will be described. FIG. 4 is a longitudinal sectional side view showing one embodiment of the invention described in claim 2. The same parts as those of the first aspect are denoted by the same reference numerals, and the description of the same structure will be omitted. In FIG. 4, one flap valve 5A is removably and removably attached to one end opening of a pump casing 4B in the forward / reverse rotating drain pump 4, and the other flap valve 5B is opened / closed to the other end opening. It is freely and detachably attached. That is, the upper end portion 13 of the flange at the opening at both ends of the pump casing 4B is used as a connected portion, and the flap valve 5A,
By configuring the downward hook-shaped connecting portion 14 provided on the 5B side so as to be separably fitted and connected from the upper side, the flap valves 5A and 5A are provided at both ends of the pump casing 4B.
B is detachably attached.

With such a configuration, as shown in FIG. 5, one of the flap valves 5A is removed, and the water pump 4 that can rotate in the normal and reverse directions is rotated forward, so that the water in one water area 1 is turned into the other water. Is pushed out as shown by the two-dot chain line and drained to the other water area 2. Also, as shown in FIG. 6, by removing the other flap valve 5B and rotating the drain pump 4 that can rotate forward and backward in reverse, the water in the other water area 2 can connect the one flap valve 5A with a two-dot chain line. As shown, it is spread and drained to the other water area 2.

As described above, the two flap valves 5A, 5A
By using only one flap valve 5X without using B, two-way drainage of forward drainage and reverse drainage can be selected and performed. That is, as shown in FIG. 5, the flap valve 5X is attached to the other end opening of the pump casing 4B, and the drainage pump 4 that can rotate in the normal and reverse directions is rotated forward, so that the water in one of the water areas 1 becomes the flap valve 5X. Is pushed out as shown by a two-dot chain line and drained to the other water area 2. Also, as shown in FIG. 6, a flap valve 5X is attached to one end opening of the pump casing 4B,
By reversing the forward / reverse rotation of the drain pump 4, the water in the other water area 2 is pushed out by the flap valve 5 </ b> X as shown by a two-dot chain line and drained into the other water area 2. That is,
In the drainage device according to the second aspect of the present invention, the selection of two-way drainage, that is, forward drainage and reverse drainage, is performed by a simplified structure and a simple switching operation as compared with the drainage device of FIG. Can do it.

Further, even if there is a water level difference between one water area 1 and the other water area 2 in a state in which the forward / reverse rotation of the drain pump 4 is stopped, the two flap valves 5A and 5B are attached and detached as shown in FIG. In the structure which can be mounted, these flap valves 5A,
The flow of water from the high water level side to the low water level side can be stopped by the 5B water stopping action. Further, in the structure using only one flap valve 5X shown in FIG. 5, even if the water level WL of the other water area 2 indicated by the two-dot chain line is higher than the water level of one water area 1, the pump facing the other water area 2 Since the flap valve 5X is attached to the opening at the other end of the casing 4B, the flow of water from the other water area 2 to the one water area 1 can be stopped by the water stopping action of the flap valve 5X. In the structure using only one flap valve 5X, one end of the pump casing 4B facing one water area 1 even if the water level WL indicated by the two-dot chain line of one water area 1 is higher than the water level of the other water area 2. Since the flap valve 5X is attached to the opening, the flow of water from one water area 1 to the other water area 2 can be stopped by the water stopping action of the flap valve 5X.

Next, an embodiment of the present invention will be described. FIG. 7 is a plan view showing an embodiment of the invention described in claim 3, and FIG. 8 is a longitudinal sectional front view taken along line AA of FIG. The same portions as those of the first or second aspect of the invention are denoted by the same reference numerals, and a duplicate description of the structure will be omitted. 7 and 8, a boundary 15 between one water area 1 and the other water area 2 is formed by a vertical guide groove that extends on both sides in the width direction than the two water areas 1 and 2. 16 can be inserted and removed from above (removable)
And, by being mounted in a watertight manner, one water area 1 and the other water area 2 are partitioned. The partition wall 16 is provided with a drainage pump 4 for communicating the two water areas 1 and 2 with each other, and the flap valve 5 is mounted on the other end of the pump casing 4B of the drainage pump 4. Furthermore, hanging bolts 17,
17 are attached.

With such a configuration, by operating the drainage pump 4, the water in one of the water areas 1 is pushed to open the flap valve 5 and drained to the other water area 2. Further, the partition wall 16 is lifted by a lifting machine (not shown) using the suspension bolts 17 and 17 and is pulled out from the boundary portion 15, and as shown in FIG. 9, the other end of the pump casing 4B to which the flap valve 5 is attached. By operating the drainage pump 4 with the opening directed toward one of the water areas 1 and the partition wall 16 attached to the boundary 15, the water in the other water area 2 pushes the flap valve 5 to open the one side. Drained into water area 2. That is, in the drainage device according to the third aspect of the present invention, the selection of two-way drainage, that is, forward drainage and reverse drainage, is simplified compared with the drainage device of FIG. It can be done by operation.

Further, even if there is a water level difference between one water area and the other water area when the operation of the drain pump is stopped, the flap valve 5
By attaching the partition wall 16 to the boundary portion 16 so that one of the openings on which the flap valve is attached faces the water area on the high water level side, the water blocking action of the flap valve 5 causes the flap valve 5 to move from the high water level side to the low water level side. Water can be stopped.

[0027]

As described above, since the drainage device according to the present invention is constituted, the following special effects can be obtained.

According to the first aspect of the present invention, the water in one water area is drained to the other water area by opening the flap valve attached to the opening facing one water area and rotating the drainage pump forward. By opening the flap valve attached to the opening facing the other water area and rotating the drain pump in reverse, the water in the other water area can be drained to the one water area. That is, selection of two-way drainage, that is, forward drainage and reverse drainage, can be performed by a simplified structure and a simple switching operation.

According to the second aspect of the present invention, the flap valve is attached only to the opening facing the other water area, the flap valve at the opening facing the one water area is removed, and the drainage pump is rotated forward. Water in the water area of the other can be drained to the other water area, the flap valve is installed only in the opening facing the one water area, the flap valve in the opening facing the other water area is removed, and the drainage pump is rotated in reverse. Thus, the water in the other water area can be drained to the one water area. That is,
Selection of two-way drainage, forward drainage and reverse drainage, can be made by a simplified structure and a simple switching operation.

According to a third aspect of the present invention, the opening for mounting the flap valve is oriented so as to face the other water area, the partition wall is mounted on the boundary between the two water areas, and the drain pump is operated. The water in one water area can be drained to the other water area, the opening where the flap valve is installed faces the one water area, the partition wall is installed at the boundary between both water areas, and the drainage pump is operated. By doing so, the water in the other water area can be drained to the one water area. That is, selection of two-way drainage, that is, forward drainage and reverse drainage, can be performed by a simplified structure and a simple switching operation.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing an embodiment of the invention described in claim 1;

FIG. 2 is a vertical sectional side view showing a state of drainage from one water area to another water area.

FIG. 3 is a vertical sectional side view showing a state of drainage from the other water area to one water area.

FIG. 4 is a longitudinal sectional side view showing one embodiment of the invention described in claim 2;

FIG. 5 is a vertical sectional side view showing a drainage state from one water area to the other water area.

FIG. 6 is a vertical sectional side view showing a drainage state from the other water area to one water area.

FIG. 7 is a plan view showing an embodiment of the invention described in claim 3;

FIG. 8 is a vertical sectional front view taken along line AA of FIG. 7;

FIG. 9 is a plan view showing a state of drainage from the other water area to one water area.

FIG. 10 is a plan view of a conventional example.

FIG. 11 is a longitudinal sectional side view of a comparative example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 One water area 2 The other water area 4 Drainage pump 5 Flap valve 5A flap valve 5B flap valve 5X flap valve 10 Partition part 15 Boundary part 16 Partition wall 13 Gate valve

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akihiro Takahashi 1-1-1, Nakamiya Oike, Hirakata City, Osaka Prefecture Inside Kubota Hirakata Plant Co., Ltd. (72) Inventor Yasushi Hashimoto 1-1-1, Nakamiya Oike, Hirakata City, Osaka Prefecture No.1 F-term in Kubota Hirakata Factory (reference) 2D019 AA41

Claims (3)

[Claims] 1. A drainage device that is installed in a partition that separates one water area and another water area and that can select drainage from one water area to another water area or drainage from another water area to one water area. The two water areas are communicated with each other via a forward / reverse rotatable drain pump installed in the partition part, and the flow from the water area on the opposite side is allowed at both ends of the drain pump facing the both water areas. And a flap valve that opens and closes so as to stop the flow to the opposite water area. 2. A drainage device that is installed in a partition that separates one water area and the other water area and that can select drainage from one water area to another water area or drainage from another water area to one water area. The two water areas are communicated with each other via a forward / reverse rotatable drain pump installed in the partition part, and the both end openings are formed in at least one of both end openings facing the both water areas of the drain pump. And a flap valve which is openable and closable so as to allow the flow from the water area on the opposite side of the mounting side and to stop the flow to the water area on the opposite side. 3. A drainage device which can select drainage from one water area to the other water area or drainage from the other water area to one water area communicating with each other, wherein the water area is partitioned at a boundary between the two water areas. A partition wall is detachably attached, and a drainage pump that connects the two water areas to each other is attached to the partition wall, and one end of one of both end openings facing the two water areas of the drainage pump is provided on the opposite side. A drainage device having a flap valve that opens and closes to allow flow from a water area and stop flow to an opposite water area.