JP2010163814A - Roof weir - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roof weir capable of maintaining proper durability even if a high-strong rubber bag is used, manufacturable at low cost, and having high maintainability. <P>SOLUTION: In this roof weir, a rubber bag body part 16 is formed of a rubber bag body 13 which is inflated/contracted by the presence/absence of air supply and a frame 11 the base end 14 of which is affixed along the outer edge of the rubber bag body 13 and the projecting ends 11a, 11a of which are rotatably connected to a fixed block. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an undulating weir using a rubber bag.

  The undulation weir is a comparatively small-scale one that controls liquid and the like by raising / lowering a structure in water. As a structure of such a undulation weir, a undulation dam is known in which a bag-like dam body formed of a rubber cloth sheet or the like is combined with a door body, and a fluid such as air is injected into the bag-like dam body to undulate (Patent Document 1). Further, it is generally known that the bag body is composed of a plurality of independent airtight bags that expand in multiple stages in the undulating direction of the rigid plate (Patent Document 2).

JP 59-65114 A Japanese Utility Model Publication No. 3-32625

  However, the rubber bag body that operates the door body requires a high strength that can withstand high air pressure because a large moment is exerted by hydraulic load. Moreover, when the hinge which supports a door body is rubber | gum, it is necessary to set a high safety factor. And since it is a special shape, there exists a problem that cost is high and replacement is not easy.

  Therefore, the present invention provides a hoisting weir that can maintain suitable durability without using a high-strength rubber bag, is low in cost, and has high maintainability.

  In order to achieve the above object, according to the first aspect of the present invention, there is provided a rubber bag body portion that expands / contracts in response to supply / discharge of a fluid, and a rubber bag body portion that is fixed to a fixed block disposed in a river bed A hoisting weir connected with a hoisting door body interlocking with the expansion / contraction of the rubber bag body, the rubber bag body portion being fixed to one end of the rubber bag body along the outer edge of the rubber bag body. The other end is formed of a frame that is rotatably connected to the fixed block.

  According to a second aspect of the present invention, in the configuration of the first aspect, the outer edge of the frame and the outer edge of the rubber bag body are fixed by the end of the frame and a fixing plate paired with the end. There is to pinch.

  According to a third aspect of the present invention, in the configuration of the first or second aspect, the frame is U-shaped, a pair of protruding end sides are hinged to the fixed block, and a linear base end side is the rubber bag body. It is to be fixed.

  According to a fourth aspect of the present invention, in the configuration of the first or second aspect, the frame is H-shaped, one protruding end side is hinged to the fixed block, and the rubber bag body is between the other protruding ends. It is to be fixed on three sides.

  According to a fifth aspect of the present invention, in the configuration of any one of the first to fourth aspects, the fixed block is made of steel.

According to the present invention, since the load moment acting on the rubber bag body portion is reduced by attaching the rubber bag body to the frame, the internal pressure of the rubber bag body portion can be lowered. And since the load concerning a rubber bag body part is reduced, it is not necessary to make a rubber bag body high intensity | strength, and it becomes possible to select an inexpensive rubber sheet.
According to the second aspect of the present invention, in addition to the effect of the first aspect, the frame and the rubber bag can be securely fixed, and the two are firmly integrated.
According to the third aspect of the invention, in addition to the effect of the first or second aspect, a strong frame can be obtained, leading to an improvement in durability.
According to invention of Claim 4, in addition to the effect of Claim 1 or 2, a rubber bag body is more firmly integrated with a flame | frame.
According to the fifth aspect of the present invention, in addition to the effect of any of the first to fourth aspects, it is not necessary to set the safety factor higher than that of the fixed block made of rubber. Moreover, even if it is a special shape, it can be manufactured at low cost, so the cost can be kept low and replacement is easy.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an explanatory diagram showing the configuration of the undulation weir. FIG. 2 is an explanatory view illustrating the configuration of the rubber bag body. FIG. 3 is an explanatory view showing a usage state of the undulation weir. FIG. 4 is an explanatory view showing a modified example of the rubber bag body portion of the undulation weir.

As shown in FIG. 1, the undulating weir 1 includes rubber bag bodies 16, 17 that expand / shrink in response to fluid supply / discharge on a fixed block 3 disposed in the river bed, and the rubber bag body 16. , 17 and the door body 2 that undulates in conjunction with expansion / contraction.
And this undulation dam 1 prevents water from being mixed between the floor surface and the fixed block 3 by laying a watertight rubber 4 between the higher floor surface of the river bed and the door body 2. In addition, it has a structure that maintains airtightness.

Next, the rubber bag body portion 16 has an inflated / shrinkable rubber bag body 13, one end fixed along the outer edge of the rubber bag body 13, and the other end rotatably connected to the fixed block 3. Frame 11. The switching valve 6 that supplies and shuts off the fluid and the switching valve 6 are rotated, so that air can be supplied from the air pump 7 to the rubber bag body 16 via the air pipe 8.
The rubber bag body portion 17 has the same configuration as that of the rubber bag body portion 16 except for a configuration including a hinge mechanism 17a that can bend the handle portion of the frame 11 in the overlapping direction of the rubber bag body portions 16 and 17. It expands / contracts by supplying and discharging fluid such as air. The rubber bag bodies 16 and 17 are connected to the fixed block 3 so as to overlap in the thickness direction (inflating / shrinking direction) of the rubber bag body 13.

As shown in FIG. 2 (a), the rubber bag body 13 and the frame 11 are connected by clamping the edge of the rubber bag body 13 between the base end 14 of the frame 11 and the fixing plate 12 and screwing it with a bolt. Composed by joining.
The pair of projecting ends 11 a and 11 a of the frame 11 includes a connecting portion 15 formed at each tip, and the frame 11 is fixed by axially attaching the connecting portions 15 and 15 to the fixed block 3 by the pins 5. The block 3 is rotatably connected.

  In addition, as shown in FIG.2 (b), the rubber bag body 13 is the state which opened the rubber sheet 10 in which the reinforcement fiber which can also endure high air pressure was folded, and the edge part was piled up, and opened. The left and right ends are closed with adhesive or heat welding. A plurality of bolt holes for connecting to the frame 11 are formed in the overlapped edge so as to form a line in the left and right end directions.

The undulation weir 1 configured as described above is used as follows. First, in a state in which no air is supplied to the rubber bag body portions 16 and 17, as shown in FIG. 3A, each rubber bag body 13 contracts and falls to the river bed, and the door body 2 also falls along the river bed. is doing.
When the switching valve 6 is turned from here and air is supplied into the air pipe 8 and air is supplied to the rubber bag body portions 16 and 17, the rubber bag body portions 16 and 17 expand the respective rubber bag bodies 13. As a result, the dimension in the thickness direction increases, and accordingly, the door body 2 gradually rises from the lying state of FIG. 3A, and the supply of air to each rubber bag body 13 becomes full. ) Will stand up.
On the contrary, when the hoisting dam 1 is not used, the air stored in the bags 13 and 13 is exhausted by the switching valve 6. Then, each rubber bag body 13 contracts, and with that, the door body 2 returns to the lying down state of FIG.

  Thus, according to the undulation weir 1 of the said form, the rubber bag body part 16 which expands / shrinks the rubber bag body part 16 and the base end 14 are fixed along the outer edge of the rubber bag body 13, and the protruding end 11a. , 11a is formed with the frame 11 rotatably connected to the fixed block 3, so that the load moment acting on the rubber bag body portion 16 is reduced by attaching the rubber bag body 13 to the frame 11, It becomes possible to lower the internal pressure of the rubber bag body portion 16. And since the load concerning the rubber bag body part 16 is reduced, it is not necessary to make the rubber bag body 13 high in strength, and it becomes possible to select an inexpensive rubber sheet 10.

In particular, the frame 11 and the outer edge of the rubber bag 13 are fixed by sandwiching the outer edge between the base end 14 of the frame 11 and the fixing plate 12 paired with the base end 14, whereby the frame 11 and the rubber bag 13 are fixed. The bag body 13 can be securely fixed, and both are firmly integrated.
The frame 11 is U-shaped and has a structure in which the pair of protruding ends 11a and 11a are hinged to the fixed block 3 and the linear base end 14 is fixed to the rubber bag 13, so that a strong frame is formed. Obtained to lead to improved durability.
In addition, since the fixed block 3 is made of steel, it is not necessary to set the safety factor higher than that of the fixed block 3 made of rubber. Moreover, even if it is a special shape, it can be manufactured at low cost, so the cost can be kept low and replacement is easy.

  The configuration of the undulating weir of the present invention is not limited to the aspect of the above embodiment, and the configuration of the rubber bag body part, the shape of the bag body, the configuration of the bag body and the like does not depart from the spirit of the present invention. Thus, it can be changed as necessary.

For example, as shown in FIG. 4 (a), the frame 21 is H-shaped, one protruding end 21a, 21a side is hinged to the fixed block 3, and the other protruding ends 21b, 21b and the central portion 24 are U-shaped. It can be set as the rubber bag body parts 26 and 27 which fix the rubber bag body 23 on three sides between the fixed plates 22 in a shape. The rubber bag body 23 in this case is formed by welding three sides fixed to the frame 21 in the bag-like rubber sheet 20 as shown in FIG.
Thus, if the rubber bag body 23 is fixed on the three sides of the H-shaped frame 21, the rubber bag body 23 is more firmly integrated with the frame 21.

  In addition, the material of the fixed block 3 does not necessarily need to be made of steel, and the strength of the fixed block 3 having a low safety factor and a special shape is higher than that of a conventional resin. As long as it can be manufactured at low cost, it can be changed as appropriate.

  Further, the number of the rubber bag body portions is not necessarily two as shown in FIGS. 1 and 3, and may be further increased. The door body is linked to the expansion / contraction of the rubber bag body portion. If it is the structure which stands and falls, it may reduce and can change suitably.

In addition, in the fixed block, the hinge for connecting the door body and the hinge for connecting the frame of the rubber bag body portion can be appropriately changed by combining them with one pin.
On the contrary, the connecting portions of the plurality of rubber bag body portions are axially attached by one pin, but may be axially attached at different positions, and can be changed as appropriate.

It is explanatory drawing which shows the structure of the undulation weir. (A) is explanatory drawing of a rubber bag body part, (b) is explanatory drawing of a rubber bag body. It is explanatory drawing which shows the use condition of a undulation weir, (a) shows the time of a fall, (b) shows the time of standing up, respectively. (A) is explanatory drawing of the example of a change of a rubber bag body part, (b) is explanatory drawing of a rubber bag body.

  1 ・ ・ Elevated weir 2 ・ ・ Door body 3 ・ ・ Fixed block 4 ・ ・ Watertight rubber at the bottom 5 ・ ・ Pin hinge 6 ・ ・ Switching valve 7 ・ ・ Air pump 8 ・ ・ Air piping 10 ・· Rubber sheet, 11 · · Frame, 11a · · Projection end, 12 · · Fixed plate, 13 · · Rubber bag body, · · · Base end, 15 · · Connection portion, 16 · · Rubber bag body portion, 17 · · · Rubber bag body, 20 · · Rubber sheet, 21 · · Frame, 21a, 21b · · Projection end, 22 · · Fixed plate, 23 · · Rubber bag, 24 · · Central portion, 25 · · Connection portion, 26 .. Rubber bag body part, 27 .. Rubber bag body part.

Claims (5)

A undulation in which a rubber bag body that expands / shrinks in response to fluid supply / discharge and a door body that undulates in conjunction with the expansion / contraction of the rubber bag body part are connected to a fixed block arranged on the riverbed A weir,
The rubber bag body portion is formed of a rubber bag body that expands / contracts, and a frame that has one end fixed along the outer edge of the rubber bag body and the other end rotatably connected to the fixed block. A characteristic undulating weir.   2. The frame and the outer edge of the rubber bag body are fixed by holding the outer edge between an end portion of the frame and a fixing plate paired with the end portion. Undulating weir.   The undulation weir according to claim 1 or 2, wherein the frame is U-shaped, a pair of protruding end sides are hinged to the fixed block, and a linear base end side is fixed to the rubber bag body. .   3. The frame according to claim 1 or 2, wherein the frame is H-shaped, one protruding end side is hinged to the fixed block, and the rubber bag body is fixed at three sides between the other protruding ends. Undulating weir.   The hoisting weir according to any one of claims 1 to 4, wherein the fixed block is made of steel.

Images