JP2004027878A - Horizontal drainage pump device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a horizontal drainage pump device capable of improving workability in attaching/detaching a pump casing including a horizontal pump to/from a pump casing attached element. <P>SOLUTION: A locking portion 10 bulging out in an angular collar shape is provided in a tip end sucking port 6A side of the pump casing 6 including the horizontal pump 5, and engaging grooves 11, 11 which extends in a longitudinal direction enabling the locking portion 10 engaging/disengaging and opposes in a horizontal direction is provided on a surface facing an outer water area 2 of a water stopping gate door element (a pump casing attached element) 3. While the locking portion 10 is engaged with the engaging grooves 11, 11, the pump casing 6 is descended to attach the pump casing 6 to the water stopping gate door element 3, and the pump casing 6 is ascended to remove the pump casing 6 from the water stopping gate door element 3. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a horizontal shaft drainage pump device suitable for application to, for example, a pump gate.
[0002]
[Prior art]
Conventionally, as shown in FIG. 7, a concrete gate leg 4 is erected at the boundary between the inner water area 1 and the outer water area 2, and a water stop 4 A is opened and closed at a lower end of the gate leg 4. There is known a pump gate in which a gate door body 3 is provided so as to be able to move up and down, and a horizontal axis pump 5 composed of, for example, an outer rotor type horizontal axis submersible pump is mounted on the water stop gate door body 3 via a pump casing 6. .
[0003]
The horizontal axis pump 5 is incorporated in a pump casing 6 having both ends opened in the horizontal axis direction. The pump casing 6 can be inserted into and removed from a through hole 3 </ b> A provided in the thickness direction of the water stop gate door 3. It is fitted to the water stop gate door 3 in a state fitted and detachably fastened and fixed by a plurality of bolts (not shown). The front end suction port 6A of the pump casing 6 faces the internal water area 1, the rear end discharge port 6B faces the external water area 2, and the flow of water from the internal water area 1 to the external water area 2 is allowed. A flap valve 7 that opens and closes to stop the flow (backflow) of water from the water area 2 to the internal water area 1 is attached.
[0004]
That is, the pump casing 6 having the both ends 6A and 6B in the horizontal axis direction opened, the horizontal pump 5 housed in the pump casing 6, and the water stop gate door body 3 (pump casing cover) to which the pump casing 6 is attached. The horizontal axis drainage pump device 8 provided with a garment is applied to a pump gate.
[0005]
According to this type of pump gate, the horizontal shaft pump 5 is opened and closed by the opening / closing means (not shown) provided on the upper side, and the drinking port 4A in which the water stop gate door body 3 is lowered via the spindles 9 and 9 is fully closed. By the operation, the water in the inner water area 1 is sucked from the suction port 6A of the pump casing 6, and the water pressure pushes the flap valve 7 open and is discharged (drained) to the outer water area 2. Further, when the operation of the horizontal pump 5 is stopped in a state in which the drinking mouth 4A is fully closed by the water stop gate door 3, the drainage from the inner water area 1 to the outer water area 2 is stopped, and the flap valve 7 has its own weight and the outer weight. It is automatically closed by the combined action with the water pressure of the water area 2, and even if the water level of the external water area 2 is higher than the water level of the internal water area 1, the backflow from the external water area 2 to the internal water area 1 can be prevented. Further, when the water level of the inner water area 1 is higher than the water level of the outer water area 2, the water stop gate door 3 is lifted by the opening / closing means (not shown) via the spindles 9 and 9, and the drinking opening 4A is fully opened. In addition, the water in the inner water area 1 can be allowed to flow naturally (natural drainage) to the outer water area 2B.
[0006]
[Problems to be solved by the invention]
By the way, in the pump gate to which the conventional horizontal shaft drainage pump device 8 is applied, when the pump casing 6 is detached from the water stop gate door 3 at the time of, for example, maintenance of the horizontal shaft pump 5, a plurality of pumps (not shown) are used. When the pump casing 6 needs to be removed from the watertight gate door 3 after maintenance, a complicated removal operation for releasing the fastening of the pump casing 6 by the bolts is necessary. A complicated mounting work for fastening and fixing 6 is required. That is, when the horizontal pump 5 is maintained, the pump casing 6 incorporating the horizontal pump 5 is very difficult to attach and detach, and it is difficult to quickly respond in an emergency or the like.
[0007]
Therefore, there has been proposed a gate pump in which the above-mentioned disadvantages are solved and the workability of attaching and detaching a pump casing having a built-in horizontal axis pump is improved (Japanese Patent Application Laid-Open No. 2001-342999). According to this type of gate pump, a complicated removal operation of releasing the fastening of the pump casing by the plurality of bolts and a complicated mounting operation of fastening and fixing the pump casing by the plurality of bolts are not required. It is possible to improve the workability of attaching and detaching the pump casing containing the pump, and to expect quick response in an emergency or the like.
[0008]
However, a detachable hook is fitted on the upper part of the discharge casing (pump casing), and a pair of brackets having guide portions formed on the left and right sides of the detachable hook are projected rearward, and the pair of brackets support the locking rod. At the same time, a horizontally opened detachable stand is supported on the water stop gate, and a pair of guide rods for holding the guide section are provided upright on both upper sides of the detachable stand, and the locking rod is engaged between the guide rods. Since the holding portion for stopping is provided, the structure is complicated and it is difficult to manufacture, so there is a disadvantage that the initial cost is increased.
[0009]
The present invention has been made in view of such circumstances, and it is possible to improve the workability of attaching and detaching a pump casing having a built-in horizontal shaft pump to and from a pump casing adherend with a very simple structure. It is an object of the present invention to provide a horizontal axis drainage pump device that can be used.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, a horizontal shaft drainage pump device according to the present invention is provided with a pump casing having openings at both ends in the horizontal axis direction, a horizontal shaft pump built in the pump casing, and the pump casing. A horizontal axis drainage pump device having a pump casing adherend, wherein the pump casing is provided with a locking portion projecting outward, and the pump casing adherend is capable of engaging and disengaging the locking portion in a vertical direction. It is characterized in that an engaging groove is provided which extends.
[0011]
ADVANTAGE OF THE INVENTION According to this invention, the pump in which the horizontal axis pump is built in is lowered | hung by lowering a pump casing in the state which the engaging part provided in the pump casing engaged with the engaging groove provided in the pump casing to-be-adhered body. The casing can be mounted on the pump casing adherend.
In addition, the pump casing is lifted in a state where the locking portion is engaged with the engagement groove and the pump casing is mounted on the pump casing adherend, thereby attaching the pump casing to the pump casing. Can be removed from the body.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a vertical sectional side view showing an embodiment in which the present invention is applied to a pump gate, and FIG. 2 is a perspective view showing an exploded state of a water shutoff gate door body and a pump casing containing a horizontal axis pump. The same or corresponding portions as those in the conventional example of FIG. 7 are denoted by the same reference numerals, and the description of the overlapping structure and operation will be omitted.
[0013]
In FIG. 1 and FIG. 2, a locking portion 10 that protrudes in a rectangular flange shape is provided on a tip suction port 6 </ b> A side of a pump casing 6 containing a horizontal axis pump 5, and a water stop gate door body (pump casing attachment) is provided. On the surface of the body 3 facing the outer water area 2, engagement grooves 11, 11 extending in the vertical direction and capable of facing in the horizontal direction are provided so that the locking portions 10 can be engaged and disengaged.
[0014]
That is, the outer dimensions and thickness of the rectangular collar-shaped locking portion 10 are formed to a value that can be fitted to the engagement grooves 11 and 11 so as to be able to move up and down, and the pump casing 6 has its front end suction port 6A side. The front end suction port 6A is fitted to the through hole 10A provided in the locking portion 10 in a watertight manner, and the front end suction port 6A is opened on the back side of the locking portion 10. Therefore, as shown in FIG. 2, after the widthwise opposite ends of the rectangular flange-shaped locking portion 10 correspond to the upper ends of the engagement grooves 11, 11, the pump casing 6 is moved down, so that the locking portion is formed. By fitting both ends in the width direction of 10 into the engagement grooves 11, the pump casing 6 allows the front end suction port 6 </ b> A to pass through the through hole 3 </ b> A of the water stop gate door body 3, as shown in FIG. 1. It is attached to the water stop gate door body 3 in a state where it matches with water.
[0015]
Since the wedge bodies 12, 12 are provided at both ends in the width direction of the rectangular flange-shaped locking portion 10 with an interval in the vertical direction, these wedge bodies 12, 12 are engaged as shown in FIG. Interfering with the inner surfaces of the grooves 11, 11, the front end suction port 6 </ b> A of the pump casing 6 is pressed in the direction of the water stop gate door 3. Therefore, the watertightness that allows water to flow between the front end suction port 6A of the pump casing 6 and the water stop gate door body 3, more specifically, the watertightness that allows water to flow between the front end suction port 6A and the through hole 3A that matches the watertightness. Can be enhanced. As shown in FIG. 4, both ends in the width direction of the rectangular flange-shaped locking portion 10 (however, only one widthwise end portion of the locking portion 10 is shown in FIG. 4) Even when both of the mating grooves 11 are formed in a wedge-like shape that gradually becomes thinner downward, the watertightness that allows water to flow between the distal end suction port 6A and the through hole 3A can be increased.
[0016]
In this manner, by lowering both ends in the width direction of the locking portion 10 provided on the pump casing 6 in a state of being engaged with the engaging grooves 11, 11 provided on the water stop gate door body 3 from above, the lateral direction is reduced. The pump casing 6 in which the shaft pump 5 is built can be easily mounted on the water stop gate door body 3, and the pump in which the horizontal shaft pump 5 is built is lifted by raising the pump casing 6 in this state. The casing 6 can be easily removed from the water stop gate door 3. Therefore, for example, during maintenance of the horizontal shaft pump 5, the workability of attaching and detaching the pump casing 6 incorporating the horizontal shaft pump 5 can be improved so that it is possible to respond quickly in an emergency or the like, and the structure is simple. Since it is easy to manufacture, the initial cost can be reduced.
[0017]
In addition, in the said embodiment, although the water stop surface of the water stop gate door body 3 demonstrated the positive pressure water stop gate which is an upstream, as shown in FIG. Can also be applied to a counter pressure stop gate on the downstream side. As shown in FIG. 6, a rectangular flange-shaped locking portion 10 is provided near the center in the axial direction of the pump casing 6 in which the horizontal shaft pump 5 (not shown in FIG. 5) is built. The pump casing 6 can be attached to and detached from the water passage (pump casing adherend) 13 by engaging and disengaging both ends of the locking portion 10 in the width direction with the engagement grooves 11 formed on the side wall of the water passage 13. .
[0018]
【The invention's effect】
As described above, since the horizontal shaft drainage pump device according to the present invention is configured, the following special effects can be obtained.
[0019]
That is, the pump casing can be easily pumped by lowering the locking portion provided on the pump casing in which the horizontal axis pump is incorporated, in a state of being engaged from the upper side with the engaging groove provided on the pump casing attached body. Not only can the pump casing be mounted on the casing adherend, but also the pump casing can be easily removed from the pump casing adherend by lifting the pump casing in this state. Therefore, for example, during maintenance of the horizontal shaft pump, the workability of attaching and detaching the pump casing incorporating the horizontal shaft pump can be improved so that it is possible to respond quickly in an emergency or the like, and the structure is simple and easy to manufacture. Therefore, the initial cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a vertical sectional side view showing an embodiment in which the present invention is applied to a pump gate.
FIG. 2 is a perspective view showing a disassembled state of a water stop gate door and a pump casing.
FIG. 3 is a longitudinal sectional side view partially showing an example of a water stop structure.
FIG. 4 is a longitudinal sectional side view partially showing another example of the water blocking structure.
FIG. 5 is a vertical sectional side view showing a second embodiment of the present invention.
FIG. 6 is a perspective view showing a third embodiment of the present invention.
FIG. 7 is a longitudinal sectional side view of a conventional example.
[Explanation of symbols]
3 Water stop gate door (pump casing adherend)
5 Horizontal axis pump 8 Horizontal axis drainage pump device 10 Engagement section 11 Engagement groove 13 Water passage (pump casing adherend)
T Thickness w1 Width in the width direction

Claims (1)

A horizontal-axis drainage pump device comprising: a pump casing having both ends opened in the horizontal axis direction; a horizontal pump incorporated in the pump casing; and a pump casing adherend on which the pump casing is mounted. A horizontal shaft drainage pump provided with a locking portion projecting outward on a casing, and a vertically extending engagement groove capable of engaging and disengaging the locking portion is provided on the pump casing adherend. apparatus.

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