JP2023164781A5 - - Google Patents

Description

The present invention relates to a water intake device that is interposed in a waterway and can move up and down, and that is installed at the bottom of the waterway and dams up water from the waterway to take in water, and also relates to a water intake box-like body that constitutes the water intake device. be.

The present applicant provided a water intake device integrated with a movable weir in Patent Document 1 (Japanese Unexamined Patent Publication No. 2003-34923). The water intake device has a configuration in which a water intake separate from the movable weir is provided on the downstream side of a rectangular box-shaped movable weir that is interposed in the waterway and can move up and down, and the water intake is , had an intake screen that sloped downward toward the downstream side of the waterway. Then, with the movable weir installed at the bottom of the waterway, water is dammed up, the waterway water that has overflowed the upper end of the movable weir is allowed to flow down through the water intake screen, and a portion of the flowing sewage is filtered. It was configured to take in water and store the taken water in a water intake tank forming the lower part of the water intake device. Further, the means for raising and lowering the water intake device includes a rack drive device and a rack rod that is moved up and down by the rack drive device and is pivotally supported on the left and right sides of the upper end surface of the movable weir, respectively, The water intake device was configured to be moved up and down by forward and reverse rotational driving of the rack drive device.

In this way, the water intake device uses the rectangular box-shaped movable weir that is configured separately, and the water intake device that is separate from the movable weir, and the water intake device is installed on the downstream side of the movable weir. The movable weir was the only structural part that could withstand water pressure. Therefore, the movable weir needed to have sufficient strength to withstand water pressure.

Therefore, in Patent Document 1, when constructing the movable weir, weir plates arranged at required intervals in the longitudinal direction of the waterway are connected to each other by a large number of connecting members made of channel materials, H-beams, and I-beams. The connection was made by welding. At the same time, a large number of reinforcing materials are arranged to reinforce the welded portions, and the reinforcing materials are fixed by welding.

In this way, the movable weir is constructed using a large number of connecting members and a large number of reinforcing members in addition to the weir plate, and the connecting members and reinforcing members can constitute a structural part that can withstand water pressure. It has a thick wall, with a thickness of 9 to 12 mm, and in most cases, a wall thickness of 12 mm is used. For this reason, the weight of the movable weir is very large, and therefore a large lifting device with a large capacity (in Patent Document 1, it is equipped with a rack drive device and a rack rod) is required to move the movable weir up and down. There was a problem in that the water intake equipment required an increase in the price of the water intake equipment. In addition, the movable weir has a large number of parts and requires welding at many locations, which requires a very large number of man-hours to manufacture.This requires a large amount of welding cost and labor, which significantly increases the manufacturing cost of the water intake device. There was a problem that led to

Further, the water intake device takes in the raised canal water through an intake screen of the water intake device attached to the downstream side of the waterway of the movable weir, and transfers the taken water to an intake screen on the bottom side of the water intake device. It was configured to be housed in a water tank. In this manner, the water intake device was configured to take water from the waterway only through the water intake device. Therefore, there is a limit to the length of the water intake screen in the extending direction and the volume of the water intake tank forming the bottom side of the water intake device, and therefore, there is a limit to the amount of water that can be taken in by the water intake device.

Therefore, the water intake device has been required to increase the amount of water intake.
A first means for increasing the water intake amount is to increase the length of the water intake screen in the width direction of the waterway by increasing the size of the water intake device, and increasing the length of the water intake screen in the width direction of the waterway. It is conceivable to increase the water intake area accordingly.

Alternatively, as shown by the dashed line in FIG. 14, it is possible to increase the size of the water intake device by increasing the length of the water intake device a in the waterway extension direction. Thereby, the height of the upper end c of the water intake tank b on the downstream side of the waterway can be set lower, and the length of the water intake screen d in the inclination direction can be made longer to increase the water intake area. Moreover, it is possible to increase the volume of the water intake tank b forming the bottom side of the water intake device a. This makes it possible to increase the amount of water intake.

However, if the water intake device is made larger by increasing the length of the water intake device in the waterway extension direction, the weight of the water intake device will further increase due to the increase in size. This makes the problem mentioned above regarding weight even more serious.

In addition, when the water intake device is made larger by setting the length of the water intake device longer in the waterway extension direction, the center of gravity of the water intake device may be shifted from the original pivot position (the axis of the lower end of the rack rod). The movable weir is moved to the downstream side of the waterway from the support position (that is, the pivot support position set on the upper end surface of the movable weir). Therefore, in order to vertically move the water intake device whose center of gravity has moved to the downstream side of the waterway in a well-balanced manner, the shaft support f that pivotally supports the lower end of the rack rod e constituting the lifting device is connected to the upper end of the movable weir. It is necessary to move it downstream from the pivot position on the surface. To this end, it is necessary to construct support structures g that are strongly reinforced on each of the left and right sides of the upper end surface of the movable weir so as to protrude toward the downstream side. However, when such a support structure part g is formed in a protruding manner, the amount of steel used increases accordingly, which results in an increase in the weight of the water intake device and an increase in manufacturing cost.

Japanese Patent Application Publication No. 2003-34923

The present invention was developed in view of the above-mentioned conventional problems in the water intake device that is interposed in a waterway and can move up and down and takes in water while installed at the bottom of the waterway, and can solve the following problems. The object of the present invention is to provide a water intake device and a water intake box-like body constituting the same.
That is, a first object of the present invention is to increase the water intake efficiency while ensuring the necessary rigidity for a weir to withstand water pressure and making the water intake device compact.
A second object of the present invention is to reduce the weight of a water intake device that dams up and takes water from a canal, thereby reducing the lifting load when raising the water intake device and reducing the capacity of the lifting device. The objective is to reduce the manufacturing cost of water intake devices.
A third object of the present invention is to simplify the structure by reducing the number of parts used and reduce the number of manufacturing steps, thereby facilitating the manufacture of the water intake device and reducing the manufacturing cost.

In order to solve the above problems, the present invention employs the following means.
That is, the first aspect of the water intake box-like body according to the present invention is a water intake box-like body that is interposed in a waterway and can move up and down, and can dam up and take in water from the waterway when it is installed at the bottom of the waterway. A horizontal upper plate part is formed of a metal plate, and is provided at the upper end of the first upright plate part to project horizontally toward the downstream of the waterway. A horizontal lower plate part that can constitute the bottom of the water intake tank and projects horizontally toward the downstream of the waterway is provided at the lower end of the first upright plate part, and an end of the horizontal lower plate part on the downstream side of the waterway is provided. The device has a main body portion on which a second upright plate portion is erected, and the left and right open ends of the main body portion are closed with side plates.
A portion below the upper end of the second upright plate portion constitutes the water intake tank, which allows channel water that has overflowed the upper end of the first upright plate portion to flow down and filters a portion of the flowing sewage water. The upper and lower ends of the water intake screen, which slopes downward toward the downstream of the waterway and allows water intake on the lower surface side, are directly or indirectly connected to the tip of the horizontal upper plate part and the second upright plate part. It is connected to the upper end, and is configured so that water taken in by the water intake screen is stored in the water intake tank. At least the horizontal upper plate portion, the first upright plate portion, and the required width plate portion on the upstream side of the waterway of the horizontal lower plate portion are formed by bending a single metal plate. It is characterized by being formed in a series.

A second aspect of the water intake box-like body according to the present invention is a water intake box-like body that is interposed in a waterway and can move up and down, and can dam up and take in water from the waterway when installed on the bottom of the waterway. ,
It is formed of a metal plate, and a horizontal upper plate part that projects horizontally toward the downstream side of the waterway is provided at the upper end of the first upright plate part. A horizontal lower plate part that can constitute the bottom of the water intake tank and projects horizontally toward the downstream of the waterway is provided at the lower end of the first upright plate part, and an end of the horizontal lower plate part on the downstream side of the waterway is provided. The device has a main body portion on which a second upright plate portion is erected, and the left and right open ends of the main body portion are closed with side plates. A portion below the upper end of the second upright plate portion constitutes the water intake tank, which allows channel water that has overflowed the upper end of the first upright plate portion to flow down and filters a portion of the flowing sewage water. The upper and lower ends of the water intake screen, which slopes downward toward the downstream of the waterway and allows water intake on the lower surface side, are directly or indirectly connected to the tip of the horizontal upper plate part and the second upright plate part. It is connected to the upper end, and is configured so that water taken in by the water intake screen is stored in the water intake tank. The horizontal upper plate part, the first upright plate part, the horizontal lower plate part, and the second upright plate part are formed in series by bending a single metal plate. It is characterized by the presence of

A third aspect of the water intake box-like body according to the present invention is a water intake box-like body that is interposed in a waterway and can move up and down, and can dam up and take in water from the waterway when installed at the bottom of the waterway. ,
It is formed of a metal plate, and a horizontal upper plate part that projects horizontally toward the downstream side of the waterway is provided at the upper end of the first upright plate part. A horizontal lower plate part that can constitute the bottom of the water intake tank and projects horizontally toward the downstream of the waterway is provided at the lower end of the first upright plate part, and an end of the horizontal lower plate part on the downstream side of the waterway is provided. The device has a main body portion on which a second upright plate portion is erected, and the left and right open ends of the main body portion are closed with side plates. A portion below the upper end of the second upright plate portion constitutes the water intake tank, which allows channel water that has overflowed the upper end of the first upright plate portion to flow down and filters a portion of the flowing sewage water. The upper and lower ends of the water intake screen, which slopes downward toward the downstream of the waterway and allows water intake on the lower surface side, are directly or indirectly connected to the tip of the horizontal upper plate part and the second upright plate part. It is connected to the upper end, and is configured so that water taken in by the water intake screen is stored in the water intake tank. The horizontal upper plate portion, the first upright plate portion, and the required width plate portion on the upstream side of the waterway of the horizontal lower plate portion are formed in series by bending a single metal plate. At the same time, the tip of the required width plate part and the base end of the remaining width plate part of the horizontal lower plate part are welded, and the tip part of the remaining width plate part is connected to the second width plate part. It is characterized in that the upright plate portion is formed in a bent manner.

A fourth aspect of the water intake box-like body according to the present invention is a water intake box-like body that is interposed in a waterway and can move up and down, and can dam up and take in water from the waterway when installed at the bottom of the waterway. ,
It is formed of a metal plate, and a horizontal upper plate part that projects horizontally toward the downstream side of the waterway is provided at the upper end of the first upright plate part. A horizontal lower plate part that can constitute the bottom of the water intake tank and projects horizontally toward the downstream of the waterway is provided at the lower end of the first upright plate part, and an end of the horizontal lower plate part on the downstream side of the waterway is provided. The device has a main body portion on which a second upright plate portion is erected, and the left and right open ends of the main body portion are closed with side plates. A portion below the upper end of the second upright plate portion constitutes the water intake tank. Upper and lower ends of a water intake screen that slopes downward toward the downstream side of the waterway, allowing the waterway water that has overflowed the upper end of the first upright plate part to flow down, and filtering a portion of the flowing sewage water so that water can be taken on the lower surface side. is directly or indirectly connected to the tip of the horizontal upper plate and the upper end of the second upright plate so that the water taken by the water intake screen is stored in the water intake tank. It is composed of The horizontal upper plate part, the first upright plate part, and the horizontal lower plate part are formed in series by bending a single metal plate, and the second upright plate part The lower end portion is welded to the tip portion of the horizontal lower plate portion.

A first aspect of the water intake device according to the present invention is that the water intake box-like body, which is interposed in the waterway and can move up and down, has a water intake box-shaped body that has a width of 1. It is equipped with a water intake type movable weir in which left and right weir plates extending in the direction are protruded in left and right opposite directions, and when the water intake box-like body is installed on the bottom of the waterway, the water intake box-like body and the left and right The weir plate is a water intake device configured to close the waterway, dam up water from the waterway, and take in water. The water intake box-like body is formed of a metal plate, and has a horizontal upper plate portion projecting horizontally toward the downstream side of the waterway at the upper end of the first upright plate portion, and
A horizontal lower plate part that can constitute the bottom of the water intake tank and projects horizontally toward the downstream of the waterway is provided at the lower end of the first upright plate part, and an end of the horizontal lower plate part on the downstream side of the waterway is provided. The water intake box-like body is constructed by having a main body portion on which a second upright plate portion is erected, and the left and right open ends of the main body portion are closed with side plates. A portion below the upper end of the second upright plate portion constitutes the water intake tank. Upper and lower ends of a water intake screen that slopes downward toward the downstream side of the waterway, allowing the waterway water that has overflowed the upper end of the first upright plate part to flow down, and filtering a portion of the flowing sewage water so that water can be taken on the lower surface side. is directly or indirectly connected to the tip of the horizontal upper plate and the upper end of the second upright plate so that the water taken by the water intake screen is stored in the water intake tank. It is composed of At least the horizontal upper plate portion, the first upright plate portion, and the required width plate portion on the upstream side of the waterway of the horizontal lower plate portion are formed by bending a single metal plate. It is characterized by being formed in a series.

A second aspect of the water intake device according to the present invention is that the water intake box-like body, which is interposed in the waterway and can move up and down, is provided with a width of 100 mm at the left and right ends of the upstream end portion of the waterway when viewed in the width direction of the waterway. It is equipped with a water intake type movable weir in which left and right weir plates extending in the direction are protruded in left and right opposite directions, and when the water intake box-like body is installed on the bottom of the waterway, the water intake box-like body and the left and right The weir plate is a water intake device configured to close the waterway, dam up water from the waterway, and take in water. The water intake box-like body is formed of a metal plate, and has a horizontal upper plate portion projecting horizontally toward the downstream side of the waterway at the upper end of the first upright plate portion, and
A horizontal lower plate part that can constitute the bottom of the water intake tank and projects horizontally toward the downstream of the waterway is provided at the lower end of the first upright plate part, and an end of the horizontal lower plate part on the downstream side of the waterway is provided. The water intake box-like body is constructed by having a main body portion on which a second upright plate portion is erected, and the left and right open ends of the main body portion are closed with side plates. A portion below the upper end of the second upright plate portion constitutes the water intake tank, which allows channel water that has overflowed the upper end of the first upright plate portion to flow down and filters a portion of the flowing sewage water. The upper and lower ends of the water intake screen, which slopes downward toward the downstream of the waterway and allows water intake on the lower surface side, are directly or indirectly connected to the tip of the horizontal upper plate part and the second upright plate part. It is connected to the upper end, and is configured so that water taken in by the water intake screen is stored in the water intake tank. The horizontal upper plate part, the first upright plate part, the horizontal lower plate part, and the second upright plate part are formed in series by bending a single metal plate. It is characterized by this.

A third aspect of the water intake device according to the present invention is that the water intake box-shaped body, which is interposed in the waterway and can move up and down, is provided with a width of 100 mm at the left and right end portions of the upstream end portion of the waterway when viewed in the width direction of the waterway. It is equipped with a water intake type movable weir in which left and right weir plates extending in the direction are protruded in left and right opposite directions, and when the water intake box-like body is installed on the bottom of the waterway, the water intake box-like body and the left and right The weir plate is a water intake device configured to close the waterway, dam up water from the waterway, and take in water. The water intake box-like body is formed of a metal plate, and has a horizontal upper plate portion projecting horizontally toward the downstream side of the waterway at the upper end of the first upright plate portion, and
A horizontal lower plate part that can constitute the bottom of the water intake tank and projects horizontally toward the downstream of the waterway is provided at the lower end of the first upright plate part, and an end of the horizontal lower plate part on the downstream side of the waterway is provided. The water intake box-like body is constructed by having a main body portion on which a second upright plate portion is erected, and the left and right open ends of the main body portion are closed with side plates. A portion below the upper end of the second upright plate portion constitutes the water intake tank, which allows channel water that has overflowed the upper end of the first upright plate portion to flow down and filters a portion of the flowing sewage water. The upper and lower ends of the water intake screen, which slopes downward toward the downstream of the waterway and allows water intake on the lower surface side, are directly or indirectly connected to the tip of the horizontal upper plate part and the second upright plate part. It is connected to the upper end, and is configured so that water taken in by the water intake screen is stored in the water intake tank. The horizontal upper plate part, the first upright plate part, and the required width plate part on the upstream side of the waterway of the horizontal lower plate part are formed by bending one metal plate and forming a series of parts. At the same time, the tip of the required width plate is welded to the base end of the remaining width plate of the horizontal lower plate, and the tip of the remaining width plate is welded to the base of the second width plate. It is characterized in that the upright plate portion is formed in a bent manner .

A fourth aspect of the water intake device according to the present invention is that the water intake box-like body, which is interposed in the waterway and can move up and down, is provided with a width of about It is equipped with a water intake type movable weir in which left and right weir plates extending in the direction are protruded in left and right opposite directions, and when the water intake box-like body is installed on the bottom of the waterway, the water intake box-like body and the left and right The weir plate is a water intake device configured to close the waterway, dam up water from the waterway, and take in water. The water intake box-like body is formed of a metal plate, and has a horizontal upper plate portion projecting horizontally toward the downstream side of the waterway at the upper end of the first upright plate portion, and
A horizontal lower plate part that can constitute the bottom of the water intake tank and projects horizontally toward the downstream of the waterway is provided at the lower end of the first upright plate part, and an end of the horizontal lower plate part on the downstream side of the waterway is provided. The water intake box-like body is constructed by having a main body portion on which a second upright plate portion is erected, and the left and right open ends of the main body portion are closed with side plates. A portion below the upper end of the second upright plate portion constitutes the water intake tank, which allows channel water that has overflowed the upper end of the first upright plate portion to flow down and filters a portion of the flowing sewage water. The upper and lower ends of the water intake screen, which slopes downward toward the downstream of the waterway and allows water intake on the lower surface side, are directly or indirectly connected to the tip of the horizontal upper plate part and the second upright plate part. It is connected to the upper end, and is configured so that water taken in by the water intake screen is stored in the water intake tank. The horizontal upper plate part, the first upright plate part, and the horizontal lower plate part are formed in series by bending a single metal plate, and the second upright plate part The lower end portion is welded to the tip portion of the horizontal lower plate portion.

According to the present invention, the water intake device can be made compact by ensuring the required rigidity as a weir with strength against water pressure, and the water intake efficiency can be increased. or,
It is possible to reduce the price of the water intake device by reducing the lifting load when lifting the water intake device that dams water canal water and reducing the capacity of the lifting device, thereby reducing the size of the lifting device. By simplifying the structure of the water intake device and reducing the number of manufacturing steps by reducing the number of parts used for the device configuration, it is possible to facilitate the manufacture of the water intake device and reduce manufacturing costs.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view illustrating a water intake device according to the present invention with a water intake type movable weir in a lowermost state and a highest raised state. FIG. 1 is a plan view illustrating a water intake device according to the present invention. It is a perspective view explaining a water intake type movable weir which constitutes a water intake device concerning the present invention. FIG. 3 is a cross-sectional view showing a state in which a water intake type movable weir is installed at the bottom of a waterway, and water is being taken in by raising the weir of waterway water. It is a side view of a water intake type movable weir. FIG. 3 is a perspective view and a partial side view illustrating the configuration of the main body. FIG. 2 is a partial perspective view showing the configuration of a water intake screen. It is a sectional view explaining water intake action by a water intake screen. FIG. 3 is an explanatory diagram illustrating the rectifying action of running water by a running water guide plate. FIG. 3 is a plan view illustrating the water-stopping effect of the fin-like waterstop rubber. FIG. 3 is a perspective view and a cross-sectional view illustrating the mutual engagement between the wedge-shaped regulating protrusions. FIG. 3 is a partial sectional view showing a state in which a water intake box-like body is installed at the bottom of a waterway via an inclination adjustment member. FIG. 3 is a side view showing a state in which the water intake box-like body is reinforced with an annular reinforcing member. It is an explanatory view explaining the problem of the conventional water intake device.

1 to 5, a water intake device 1 according to the present invention is provided with a water intake type movable weir 3 that is interposed in a waterway 2 and can move up and down, and the water intake type movable weir 3 has a water intake type as shown in FIGS. Left and right weir plates 10 and 11 extending in the width direction protrude in opposite directions at the left and right ends 7 and 9 of the upstream end portion 6 of the box-like body 5 when viewed in the width direction of the waterway 2. When the water intake type movable weir 3 is installed on the waterway bottom 12 (FIGS. 1 and 4), the water intake box-like body 5 and the left and right weir plates 10, 11 are connected to the waterway 2. The structure is such that the canal water is taken in by closing the canal and damming up the canal water. Here, "left and right" refers to the left and right sides as seen in the upstream direction of the waterway. The same applies to "left and right" below.

As shown in FIGS. 4 to 6, the water intake box-like body 5 is formed of a metal plate, and has a horizontal upper plate that projects horizontally toward the downstream of the waterway at the upper end 15 of the first upright plate portion 13. The lower end 17 of the first upright plate part 13 forms a bottom part 20 of the water intake tank 19, and a horizontal lower plate part 21 which protrudes horizontally toward the downstream of the waterway is provided. It has a main body part 25 in which a second upright plate part 23 is erected at the end 22 of the horizontal lower plate part 21 on the downstream side of the waterway. The left and right open ends 26 and 27 of the main body portion 25 are closed by left and right side plates 29 and 30 (FIGS. 2 to 3, FIG. 5), and are lower than the upper end 31 of the second upright plate portion 23. The entire side portion (the entire space between the first upright plate portion 13 and the second upright plate portion 23) is the water intake tank 19 (FIG. 4).

In addition , as shown in FIG. 4, the water intake box-like body 5 allows the channel water that has overflowed the upper end 15 of the first upright plate portion 13 to flow down, and filters a portion of the flowing sewage water so that the water is collected on the lower surface side 32. It has a water intake screen 33 that slopes downward toward the downstream of the waterway to enable water intake. The upper and lower ends 35 and 36 of the water intake screen 33 are connected directly or indirectly to the tip 37 of the horizontal upper plate part 16 and the upper end 31 of the second upright plate part 23 (in this embodiment, the upper end 31 The water intake tank 19 is connected to the water intake tank 19, and the water intake screen 33 is connected to the water intake tank 19. At least the horizontal upper plate portion 16, the first upright plate portion 13, and the required width plate portion 40 on the upstream side of the waterway of the horizontal lower plate portion 21 are formed by bending a metal plate. It is formed in a series. This will be explained in detail below.

The main body portion 25 constituting the water intake box-like body 5 is formed of a metal plate, for example, a stainless steel plate with a wall thickness of 6 mm. The main body portion 25 includes the horizontal upper plate portion 16, the first upright plate portion 13, the horizontal lower plate portion 21, and the second upright plate portion 23 by bending a single metal plate. However, in this embodiment, in view of the large size of the main body portion 25, the following structure is adopted in order to facilitate manufacturing.

That is, as shown in FIGS. 4 and 6, the horizontal lower plate part 21 is divided into two parts, a required width plate part 40 on the upstream side of the waterway and a remaining width plate part 41, and the horizontal upper plate part 16 and the The first upright plate portion 13 and the required width plate portion 40 are formed integrally by bending a single metal plate (stainless steel plate). The remaining width plate portion 41 has the second upright plate portion 23 bent in series at its distal end portion 42 (FIG. 6(B)) , and is connected to the end portion 43 of the required width plate portion 40. The end portions 45 of the remaining width plate portion 41 are integrated with each other by welding.

The height of the first upright plate portion 13 is, for example, 1000 mm, and the width dimension of the horizontal upper plate portion 16 is set to 150 to 300 mm, for example, 200 mm. Further, in this embodiment, the width of the required width plate portion 40 is approximately equal to the width of the horizontal upper plate portion 16, and is set to 150 to 300 mm, for example, 200 mm.

In the main body portion 25 configured in this manner, the horizontal upper plate portion 16, the first upstanding plate portion 13, and the required width plate portion 40 form a channel-shaped cross section with high rigidity. A channel-shaped body 46 is formed. The left and right open ends 26 and 27 of the main body portion 25 having such a configuration are closed by the left and right side plates 29 and 30, as shown in FIGS. 2, 3 and 5, and the water intake screen 33 is closed. The water intake box-like body 5 is constructed by connecting the upper and lower ends 35 and 36 directly or indirectly to the tip of the horizontal upper plate part 16 and the upper end 31 of the second upright plate part 23. There is. The portion below the upper end 31 of the second upright plate portion 23 is the water intake tank 19 (FIG. 4).

Since the main body portion 25 (FIG. 6) of the water intake box-like body 5 is configured as the channel-like body 46, the water intake box-like body 5 itself has high rigidity. In addition, since the left and right open ends 26 and 27 of the main body 25 are closed by the left and right side plates 29 and 30, the left and right side plates 29 and 30 also function as reinforcing ribs for the main body 25, The rigidity of the water intake box-like body 5 is further improved. This ensures the strength of the water intake box-like body 5 against water pressure.

The water intake screen 33 constituting the water intake box-like body 5 may be of any type as long as it blocks foreign matter such as fallen leaves contained in the running water and allows water to be taken on the lower surface side 32 thereof. For example, as shown in FIGS. 7 and 8, the water intake screen 33 has stainless steel screen bars 49 that have a V-shaped cross section that tapers toward the back side and extend in the left-right direction, and are spaced at a required interval in the left-right direction. They are arranged in multiple stages up and down on a vertical supporting bar 50 which is arranged in an inclined state, and the whole is constructed in the shape of an integrated cage. The width of the wide outer surface 51 of the screen bar 49 is set to about 5 mm, and the outer surface 51 is inclined slightly downward to the downstream side with respect to the inclined line 34 of the water intake screen 33, as shown in FIG. The water intake screen 33 having slits 52 through which water flows is formed by arranging the water intake screen 33 in multiple stages on the support bar 50 at intervals of about 1 mm.

The inclination angle (the angle of the inclination line 34) of the water intake screen 33 is vertical so that foreign objects such as fallen leaves contained in the water flowing down are unlikely to get caught on the upper surface (hereinafter referred to as the screen surface) 53 of the water intake screen 33. The water intake screen 33 is set at an angle of 30 to 35 degrees, for example, about 30 degrees, with respect to the line, and the lower side of the water intake screen 33 is formed into a cavity as shown in FIG.

As described above, the upper end 35 of the water intake screen 33 is connected directly or indirectly to the tip 37 of the horizontal upper surface portion 16. In this embodiment, as shown in FIGS. 3 to 4 and 7, it is indirectly connected to the tip 37 of the horizontal upper plate portion 16 via a water flow guide plate 55. As shown in FIGS. 3 to 4 and 9, the flowing water guide plate 55 has a portion on the downstream side of the waterway formed as an upwardly convex arc-shaped plate portion 56, and a portion on the upstream side of the waterway as a horizontal plate. 57.

A lower end 59 of the arcuate plate portion 56 is connected to the upper end 35 of the water intake screen 33, and a tip 60 of the horizontal plate portion 57 is connected to the tip 37 of the horizontal upper plate portion 16. Further, as described above, the lower end 36 of the water intake screen 33 is connected directly or indirectly to the upper end 31 of the second upright plate portion 23. In this embodiment, as shown in FIG. 4, the lower end 36 of the water intake screen 33 is indirectly supported via a protruding support member 62 fixed to the upper outer surface 61 of the second upright plate section 23. The lower end 36 of the water intake screen 33 is connected to the upper end 31 of the second upright plate portion 23.

The horizontal upper plate part 16 increases the flow rate of the dammed waterway water to make it easier for garbage in the waterway to flow downstream, and the water flow guide plate 55 adjusts the flow rate so that water reaches the water intake screen 33. This is to facilitate smooth flow. The water that has fallen on the lower surface side 32 of the water intake screen 33 is stored in the water intake tank 19.

The side plates 29 and 30 that close the left and right open ends 26 and 27 of the main body part 25 are connected to the left edge of the horizontal upper plate part 16 and the left edge of the water intake screen 33, as shown in FIG. At a series of left side edges 63 and a series of right side edges 65 extending between the right edge of the horizontal upper plate section 16 and the right edge of the water intake screen 33, the dammed channel water is transferred to the water intake screen. A series of left and right guide walls 66 and 67 are provided to reliably guide the robot to the 33. The height of the left and right guide walls 66, 67 is set to, for example, about 100 mm.

The left and right weir plates 10 and 11 are formed of metal plates (for example, stainless steel plates) with a thickness of, for example, 6 mm, and are located on the upstream side of the waterway of the left and right side plates 29 and 30 that constitute the water intake box-like body 5. The left and right end portions 7 and 9 of the end portions are welded in opposite directions so as to extend in the width direction of the waterway. The tips 10a, 11a of the left and right weir plates 10, 11 are close to the inner surfaces 73, 75a of the left and right weirs 71, 72, as shown in FIG.

In this embodiment, as shown in FIG. The upper ends of the weir plates 10 and 11 are flush with the upper ends of the guide vertical walls 66 and 67, as shown in FIG. 3. Therefore, when the water intake box-like body 5 is installed on the waterway bottom part 12 (FIG. 1), the waterway water dammed up to the height of the upper ends of the guide walls 66, 67 as shown in FIG. As shown by the arrows, the water is collected between the left and right guide vertical walls 66, 67 and supplied to the water intake screen 33.

Further, as shown in FIGS. 2 to 3 and 5, one of the left and right side portions of the water intake box-like body 5 when viewed in the waterway width direction (in this embodiment, the side surface portion formed by the right side plate) 75c A rectangular water intake 76 (Fig. 5), which is slightly elongated in the waterway extension direction, is provided at the lower part of the water channel, and a proximal opening 79 (Fig. 5) is in communication with the base end portion 80 (FIG. 3) of the water guide pipe body 77, which is welded to the side surface portion 75c . Further, rectangular support pipes 81, 81, which are slightly elongated in the waterway extension direction and are located slightly above the water guide pipe body 77 and on the upstream side and the downstream side of the waterway, are attached to the side surface portion 75c. The base end portions 82, 82 (FIG. 3) of the support tubes 81, 81 are welded to the side surface portion 75c .

In order to further improve the strength of these protrusions at the side surface portion 75c , the proximal end portions of the water guide pipe body 77 and the support pipe bodies 81, 81 are inserted into the water intake box-like body 5, Preferably, the base end portions 80, 82, 82 are welded to the side surface portion 75c . Further, as shown in FIGS. 3 and 5, for example, by connecting the support tubes 81 and 81 to each other and to each support tube 81 and the water guide tube 77 by welding with a reinforcing member 83 such as a reinforcing plate, The support tubes 81, 81 and the water guide tube 77 are made into a high-strength integral structure tube 85.

As shown in FIGS. 2 and 3, the other side surface (left side surface) 86 of the water intake box-like body 5 when viewed in the waterway width direction also has a pipe body having the same structure as the water guide pipe body 77 (however, A tube (not intended for water conveyance) 87 and support tubes 89, 89 having the same structure as the support tubes 81, 81 are similarly protruded, and the support tubes By connecting the bodies 89, 89 and each support tube 89 to the tube 87 by welding with a reinforcing member 90 such as a reinforcing plate, the support tube 89 and the tube 87 are formed into a highly strong integral structure. A tube body 91 is used.

Further, in this embodiment, reinforcing means 92 shown in FIGS. 2 and 5 is employed in order to increase the water pressure resistance of the left and right weir plates 10 and 11. That is, for the right weir plate 11, the reinforcing means 92 is connected to the weir plate 11, the support tube 81 on the upstream side of the waterway (the edge portion of the support tube 81 in this embodiment), and the guide. The water pipe body 77 is connected by welding with a connecting plate 92b extending in the left-right direction. As for the weir plate 10 on the left side, as shown in FIG. The tube body 87 is connected by welding with a connecting plate 92a extending in the left-right direction.

The water intake type movable weir 3 is interposed in the water channel 2 and is configured to be able to move up and down. In this embodiment, as shown in FIGS. 1 and 2, the monolithic tube is connected to the left and right guide grooves 95 and 96 that are continuously provided in the vertical direction on the opposing inner surfaces of the left and right dams 71 and 72. By fitting the left and right end portions 97 and 99 of the guide grooves 91 and 85, the water intake type movable weir 3 is configured to be movable up and down along the guide grooves 95 and 96.

With the left and right end portions 97, 99 of the left and right integrated structure tube bodies 91, 85 fitted into the opposing guide grooves 95, 96, both the weir plates 10 are inserted as shown in FIGS. 2 and 10. , 11 are in close proximity to the inner surfaces 73, 75a of the dams 71, 72. Therefore, as shown in FIGS. 2 and 10, in order to prevent waterway water from leaking through the gap, vertically long fin-like surfaces are formed on the surface portions 100 on the upstream side of the waterway at the tips of the weir plates 10 and 11. A water stop rubber 101 is fixed with bolts, and the tip edge 102 of the water stop rubber 101 is brought into elastic pressure contact with the inner surfaces 73, 75 of the dams 71, 72.

As shown in FIGS. 1 and 2, the opposing left and right guide grooves 95 and 96 are formed by disposing vertically long columnar left and right channel steels 102 and 103 with the openings of the guide grooves 95 and 96 facing each other. It is formed. As shown in FIG. 1, the left and right columnar channel steels 102 and 103 extend above the dams 71 and 72, and their upper ends are connected to each other by a horizontal member 107.

Furthermore, as shown in FIGS. 2 to 3 and 11, on the downstream side surface portions 109, 109 of the integral structure pipe bodies 91 , 85, protrusions are provided on the inner surface 110 facing upstream of the guide grooves 95, 96. A wedge-shaped regulating protrusion 112 that can engage with the wedge-shaped regulating protrusion 111 is provided in a protruding manner, and when the water intake type movable weir 3 is lowered, the engagement of the regulating protrusions 111 and 112 causes The water intake type movable weir 3 is made to be stable in the lowest position shown in FIGS. 1 and 5.

When the water intake type movable weir 3 is in the lowest state shown in FIG. The outflow port 115 communicates with an inflow port 117 (FIG. 1) provided in a water tank 116 adjacent to and in contact with the guide groove 96. The water stored in the water storage tank 116 via the outflow port 115 and the inflow port 117 is pumped to a predetermined location via the water pipe 120 by the operation of the submersible pump 119 (FIG. 2) installed in the water storage tank 116. delivered to the location.

In this embodiment, the vertical movement of the water intake type movable weir 3 is performed using a lifting device 123 comprising a rack rod 121 and a rack drive device 122, as shown in FIG. As shown in FIGS. 1 to 3, the rack rod 121 is connected to the support tubes 89, 89 on the upstream side of the waterway and on the downstream side of the waterway, which constitute the high-strength integral structure tubes 91, 85 arranged on the left and right sides . , 81, 81 and are welded to each other, supporting members 125, 125 (FIGS. 1 to 3) are pivotally supported and extend upward, and a rack is provided continuously in the vertical direction. The rack rod 121 is inserted into a vertical insertion hole (not shown) provided in the horizontal member 107, and projects upwardly from the horizontal member 107, and extends toward the left and right ends of the upper surface of the horizontal member 107. are provided with the rack driving devices 122, 122.

The left and right rack drive devices 122, 122 are connected by a rotary connection shaft 126, and the rotation connection shaft 126 is driven forward and backward by a reduction motor 127 provided on one rack drive device 122a. The structure is such that pinions (not shown) provided at both ends thereof are rotated, thereby causing the left and right rack rods 121, 121 to move up and down, and the water intake type movable weir 3 to move up and down accordingly.

Next, the functions and effects of the water intake device 1 according to the present invention will be explained. First, the basic functions and effects related to damming up water channel water and taking water will be explained. The unique functions and effects of the present invention resulting from the unique configuration of the present invention will be explained by comparison.

A. Regarding the basic effects of the present invention In order to take water using the water intake device 1 having the above-mentioned configuration, the water intake box-like body 5 is installed on the waterway bottom part 12, as shown in FIGS. 1 and 5, for example. (In the figure , the lowest end state where the lower end surface 129 of the water intake box-like body 5 is in contact with the bottom surface portion 12 of the water channel). In this state, the dammed channel water is dammed up to the upper end height of the left and right guide walls 66, 67, passes through the horizontal upper plate part 16, is guided by the flowing water guide plate 55, and flows down. After that, as shown by arrows in FIGS. 4 and 8, the water flows downstream on the inclined screen surface 53.

At this time, the horizontal upper plate portion 16 increases the flow rate of the dammed waterway water to facilitate the flow of debris in the waterway downstream, and also serves as the water guide plate 55 ( FIGS. 4, 7, and 9). adjusts the flow velocity to make it easier for water to flow smoothly into the water intake screen 33.

When the channel water flows down the water guide plate 55 and the screen surface 53, foreign objects such as fallen leaves are blocked, and a part of the flowing water is efficiently taken in through the slits 52 (FIG. 8) of the water intake screen 33. It falls on the lower surface side 32 (FIG. 4(A)) of the water intake screen 33. The water that has fallen in this way is collected in the water intake tank 19 (FIG . 4 ), and then, as shown by the arrow in FIG. ) flows into the water storage tank 116, and then, by operating the submersible pump 119 (FIG. 2), it is sent to a predetermined location via the water pipe 120 and used for snow melting, agricultural water, industrial water, etc.

When there is a risk that the water volume of the waterway may rise abnormally due to heavy rain, the water intake screen 33 is The movable weir 3 is brought to its highest position as shown by the dashed line in FIG. As a result, the water intake type movable weir 3 is in an elevated state away from the water channel 2, as shown by the dashed line in FIG. In addition, when water is to be taken for a period of time for the purpose of melting snow, etc., the water intake type movable weir 3 is raised in the same manner as shown in FIG. 1 during seasons such as summer when water intake is not required. By raising the water intake type movable weir 3 in this way, the earth and sand accumulated on the upstream side of the water intake type movable weir 3 can be flowed downstream with a water flow.

B. Regarding the unique effects of the present invention due to the unique configuration of the present invention in comparison with the water intake device according to Patent Document 1

1. Unique configuration of the present invention As described above (see FIG. 2, etc.), the intake type movable weir 3 is located at the left and right ends of the upstream end portion 6 of the water intake box 5 when viewed in the width direction of the waterway. Left and right weir plates 10 and 11 extending in the width direction are protruded in opposite left and right directions on the parts 7 and 9, and when the water intake type movable weir 3 is installed on the waterway bottom part 12, the water intake The box-shaped body 5 and the left and right weir plates 10, 11 are configured to close the waterway 2, dam up water from the waterway, and take in water. The water intake box-like body 5 is formed of a metal plate, and has a horizontal upper plate portion 16 projecting horizontally toward the downstream side of the waterway at the upper end of the first upright plate portion 13. At the lower end 17 of the first upright plate section 13, the horizontal lower plate section 21 constituting the bottom of the water intake tank 19 is protruded, and at the downstream end 22 of the horizontal lower plate section 21, a second The main body part 25 has a standing plate part 23 erected thereon. The left and right open ends 26, 27 of the main body 25 are closed by left and right side plates 29, 30, and the upper and lower ends 35, 36 of the water intake screen 33, which slopes downward toward the downstream of the waterway, are directly or indirectly closed. Specifically, the water intake box-shaped body 5 is configured by being connected to the tip 37 of the horizontal upper plate part 16 and the upper end 31 of the second upright plate part 23.

The water intake box-shaped body 5 having such a configuration has at least the horizontal upper plate part 16, the first upright plate part 13, and the horizontal lower plate part 21 on the upstream side of the waterway in the main body part 25. Since the channel-shaped body 46 is constructed by forming the required width plate portion 40 in a series by bending a single metal plate, the channel-shaped body 46 itself has high rigidity. In addition, since the left and right open ends 26 and 27 of the main body are closed by the left and right side plates 29 and 30, the left and right side plates 29 and 30 also function as reinforcing ribs for the main body 25, The rigidity of the water intake box-like body 5 is further improved.

The intake type movable weir 3 is arranged at the left and right ends 7 and 9 of the upstream end portion 6 of the water intake box-shaped body 5 when viewed in the width direction of the waterway 2, so as to extend in the width direction of the waterway. Left and right weir plates 10 and 11 are provided in a protruding manner, and when the water intake type movable weir 3 is installed on the bottom surface 12 of the waterway, the waterway 2 is closed and the waterway water is dammed up.

By the way, since the bending moment due to the water pressure acting on the water intake type movable weir 3 that closes the waterway 2 acts more toward the center in the width direction of the waterway 2, the water intake box installed on the waterway bottom 12 Although a large bending moment will act on the shaped body 5, the water intake box shaped body 5 can resist the bending moment because of its high rigidity as described above. The water intake box-like body 5 does not have a structure in which a weir plate is reinforced using a large number of connecting members or a large number of reinforcing materials, as in the movable weir described in Patent Document 1, but the members used The thickness is also not as thick as in the movable weir.

Nevertheless, the reason why the water intake box-shaped body 5 can resist the large bending moment is that the main body portion 25 is connected to the horizontal upper plate portion 16, the first upright plate portion 13, and the required portion. This is because the channel-like body 46 (FIG. 4) having high rigidity is formed by the width plate portion 40. Second, the movable weir in Patent Document 1 is independent of the water intake, and only the movable weir alone can function as a weir, whereas in the present invention, the entire internal space is This is because the entire highly rigid water intake box-like body 5, which can also serve as a water tank, can function as a weir.

2. Unique Functions and Effects As described above, the water intake device 1 according to the present invention has the following unique functions and effects, and solves the first, second, and third problems described in the "Problems" section above. can be solved.

[About solving the first issue]
In the water intake device of the present invention, the main body portion 25 of the highly rigid water intake box-like body 5 that also serves as a weir is provided with the channel-like body 46 . In the channel-shaped body 46, the horizontal upper plate portion 16, the first upright plate portion 13, and the required width plate portion 40 on the upstream side of the waterway of the horizontal lower plate portion 21 are formed of a single metal plate. It is formed in a series by bending and has high rigidity. Since the entire portion below the upper end 31 of the second upright plate portion 23 constitutes the water intake tank 19 that accommodates the water taken by the water intake screen 33, the water intake tank has a large volume. 19 has been obtained. Therefore, even if the height of the upper end 31 of the second upright plate portion 23 is set low, the water intake tank 19 can secure a predetermined volume. Therefore, according to the present invention, a screen having a longer length in the inclined direction 34 (FIG. 4) can be adopted as the water intake screen 33. In addition, the height of the upper end of the water intake screen 33 with respect to the vertical line can be changed while maintaining the inclination angle of the water intake screen 33 with respect to the vertical line at an angle suitable for water (for example, an angle of about 30 degrees with respect to the vertical line). The lower end position can be lowered. This makes it possible to increase the amount of water taken by the water intake screen 33.

In the movable weir described in Patent Document 1, as explained in the "Background Art" section, the part that functions as a movable weir and the part that functions as a water intake device are separate bodies, and the water intake The water taken in by the screen was stored only in the water intake tank. Therefore, in order to ensure a predetermined volume of the water intake tank, the height of the upper end of the vertical wall on the downstream side of the water intake tank must be set high. Therefore, the height of the lower end of the water intake screen has to be set at a high position, and the height of the upper end of the water intake screen is limited by the River Act to 1/2 of the planned high water level. Therefore, there was a limit to the amount of water intake through the water intake screen.

In the water intake device 1 of the present invention, the entire portion of the water intake box-shaped body 5, which has the required rigidity and also serves as a weir, is connected to the water intake tank 19, below the upper end 31 of the second upright plate portion 23. Since the configuration can be adopted, it is possible to increase the water intake efficiency while making the water intake device 1 compact. Therefore, the present invention solves the first problem, that is, "to increase water intake efficiency while making the water intake device compact by ensuring the required rigidity as a weir to withstand water pressure." can.

[About solving the second issue]
In the water intake device 1 of the present invention, the channel-shaped body 46 has high rigidity as described above. Therefore, the water intake box-like body is constructed using the highly rigid channel-like body 46, and the left and right open ends 26, 27 of the main body portion 25 are closed with the left and right side plates 29, 30. As mentioned above, 5 serves as a weir to ensure strength against water pressure.

Therefore, as described above with respect to the movable weir described in Patent Document 1, the inside of the water intake box-like body 5 is equipped with a large number of connecting members (channel materials, H-beams, I-beams) and a large number of reinforcing materials. There is no need to use it for reinforcement. Therefore, according to the present invention, the weight of the water intake device 1 can be reduced. Thereby, the lifting device 123 can be made smaller, and the price of the water intake device 1 can be reduced. Therefore, according to the present invention, it is possible to solve the second problem, that is, to reduce the weight of the water intake device 1 that takes in water by damming waterway water, and to reduce the lifting load when raising the water intake device. The problem of "reducing the capacity of the device and reducing the manufacturing cost of the water intake device" can be solved.

[About solving the third issue]
As described above, the water intake box-like body 5 constituting the water intake device 1 of the present invention extends from the left and right open ends 26, 27 of the main body portion 25, which is constructed using the highly rigid channel-like body 46. It is constructed by being closed by side plates 29 and 30, and serves as a weir to ensure strength against water pressure. Therefore, as described above with respect to the movable weir described in Patent Document 1, the interior of the water intake box-like body is equipped with a large number of connecting members (channel materials, H-beams, I-beams) and a large number of reinforcing members. There is no need to use reinforcement. Furthermore, welding at multiple locations for this purpose becomes unnecessary. As a result, according to the present invention, it is possible to simplify the structure by reducing the number of parts used and to reduce the number of manufacturing steps, thereby facilitating manufacturing and reducing manufacturing costs. Therefore, according to the present invention, the third problem is solved, that is, "simplifying the structure by reducing the number of parts used and reducing the number of manufacturing steps to facilitate the manufacture of the water intake device and reduce the manufacturing cost." can be solved.

It goes without saying that the present invention is by no means limited to what has been shown in the above embodiments, and that various design changes can be made within the scope of the claims. An example of this is as follows.

(1) In the present invention, at least the horizontal upper plate portion 16, the first upright plate portion 13, and the required width plate portion 40 on the upstream side of the waterway of the horizontal lower plate portion 21 are aligned. It is characterized by being formed in a series by bending a single metal plate. An example of this is the one described in the above embodiment, in which the horizontal upper plate part 16, the first upright plate part 13, the horizontal lower plate part 21, and the second upright plate part 23 are connected together. A series of metal plates may be formed by bending them. When formed in series, the required width plate portion 40 refers to the entire horizontal lower plate portion 21 . In the case where the required width plate portion 40 includes the entire horizontal lower plate portion 21, the lower end of the second upright plate portion 23 is not formed in a series as described above. It is connected to the tip of the section 21 by welding.

(2) The volume of the water intake box is set as required by taking into account the width of the waterway, the planned high water level of the waterway, the required water intake, etc.

(3) The water intake box-like body 5 dams up and takes in water from the waterway when it is installed on the waterway bottom portion 12. Here, "a state installed on the waterway bottom part 12" refers to a state where the lower surface part 129 of the water intake box-like body 5 is in contact with the waterway bottom part 12 in a horizontal state as described above. Not limited. FIG. 12 shows that when the waterway bottom surface 12 is not in a horizontal state, an inclination adjustment member 140 is interposed at an appropriate position between the bottom surface 129 of the water intake box-like body 5 and the waterway bottom surface 12 to adjust the respective inclinations. A case is shown in which the attitude of the water intake box-shaped body 5 is adjusted to a horizontal state by adjusting the height of the upper end 141 of the adjustment member 140.

(4) Depending on the installation situation of the water intake device 1 of the present invention, if it is necessary to further improve the strength against water pressure of the water intake box-shaped body 5, an annular reinforcing member whose inner edge is illustrated with a thick line in FIG. 142 is installed inside the water intake box-like body 5, one at the middle part when viewed in the length direction (channel width direction), or, considering the rigidity required for the water intake box-like body 5, The annular reinforcing portion 142 may be formed by arranging a plurality of reinforcing portions at required intervals (for example, 1 m intervals) in the length direction. The annular reinforcing member 142 is fixed to the inner surface 145 of the water intake box-like body 5 by welding. When the annular reinforcing member 142 is arranged in this manner, the tip end surface 147 of the annular reinforcing member 142 is formed as an inclined end surface 146 along the screen surface 53 in the portion where the screen surface 53 exists. When the annular reinforcing member 142 is disposed in this manner, the water intake screen 33 is arranged so that the screen surface 53 and the inclined end surface 146 are flush with each other. It is preferable that it be discontinued at member 142. In addition, in FIG. 13, a rectangular notch 149 formed between the horizontal lower plate portion 21 and the horizontal lower plate portion 21 is provided so as not to obstruct the movement of water toward the tip opening 113 in the water intake tank 19. It is.

(5) The upper and lower ends of the water intake screen 33 may be directly connected to the tip of the horizontal upper plate part 16 and the upper end of the second upright plate part 23.

(6) The raising and lowering of the water intake type movable weir 3 is performed by a lifting device similar to that used in conventional movable weirs, such as a lifting device in which a threaded rod is used in place of the rack rod 12 and a nut member is combined with the threaded rod. be able to.

1 Water intake device 2 Channel 3 Water intake type movable weir 5 Water intake box-shaped body 10 Left weir plate 11 Right weir plate 12 Channel bottom section 13 First upright plate section 16 Horizontal upper plate section 19 Water intake tank 21 Horizontal lower plate section 23 Second upright plate portion 25 Main body portion 29 Side plate 30 Side plate 33 Water intake screen 40 Required width plate portion 41 Remaining width plate portion 46 Channel shaped body 55 Water guide plate 66 Left guide vertical wall 67 Right guide vertical wall 85 Integral structure pipe Body 91 Integral tube body 121 Rack rod 122 Rack drive device 123 Lifting device

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