JP4399804B2 - Undulating weir device - Google Patents

Description

  The present invention relates to an undulating weir device that raises or falls a door body by expanding or contracting a bag body provided below the door body.

Conventionally, undulation weir devices are installed in rivers or waterways, and by inflating a bag body provided under the door body, the door body is erected to block the river and waterway, and upstream and downstream And adjust the water level. In addition, this undulating weir device may be installed on a breakwater, and a storm surge or the like is prevented from launching over the breakwater by a door body that is inflated by a bag body.
Therefore, the door body is supported at the installation place so as to be rotatable about one end of the door body. When the door body is raised by the bag body, a relatively large predetermined load is applied to the substantially entire surface of the door body by the pressure of the bag body. A load corresponding to the predetermined load is also applied to the support portion that rotatably supports the door body. For this reason, there is a concern that each constituent member constituting the support portion may be in trouble such as deformation or breakage, and the door body may not normally rotate.

Patent Document 1 discloses an invention of a tide gate as a prior art of a support portion that rotatably supports a door body, and the door body in the invention of Patent Document 1 is rotatably supported. The support portion is configured as follows. That is, the lower part of the bearing / holding plate is supported by an anchor bolt on the vertical surface protruding from the upper end of the sea wall surface of the breakwater, and a plurality of protruding bearings are provided at the upper end of the bearing / holding plate at intervals. And recesses provided on both sides of these bearings. On the other hand, similarly to the door body, a plurality of bearings protruding at intervals and recesses provided on both sides of the bearings are formed at the lower end. Then, the bearings and recesses at the upper end of the bearing / holding plate and the recesses and bearings at the lower end of the door body are respectively combined by the rotation shafts, and the door body is supported by the bearing / holding plate fixed to the vertical surface of the breakwater. It is configured to freely move up and down.
JP 2002-309550 A

  In the invention of Patent Document 1 described above, the support portion that rotatably supports the door body rotates the bearing and the recessed portion provided at the upper end of the bearing / holding plate and the recessed portion and the bearing provided at the lower end of the door body, respectively. It is configured to freely move up and down while supporting the door body with the bearing and holding plate fixed to the vertical surface of the breakwater by combining with the shaft, but the bearing and holding plate and the relatively large structure of the door body In order to manufacture a plurality of recesses and bearings at the end, considerable manufacturing man-hours and appropriate facilities are required, which may cause manufacturing problems. Furthermore, in order to fit the recesses and bearings provided in each of the bearing / holding plate and the door body with each other, it is necessary to manage the dimensions in manufacturing, which further increases the number of manufacturing steps, which may increase the manufacturing cost. There is.

  The present invention has been made in view of such points, and in particular, the support portion that rotatably supports the door body is configured in a compact manner, and even if a load from the bag body acts on the door body, It is an object of the present invention to provide a hoisting weir device in which the body can normally rotate.

As a means for solving the above-mentioned problems, the present invention described in claim 1 is an undulating weir that raises or lowers a door body by expanding or contracting a bag body provided below the door body. In the apparatus, the undulating weir device is rotatably supported by a shaft portion extending in the width direction at an end portion of the door body, and a plurality of bearing portions are disposed along the shaft portion, and provided at an installation location. And a plurality of bearing fitting portions into which the respective bearing portions are fitted, and at least connecting means for connecting the respective bearing fitting portions to the corresponding bearing fitting portions.
Therefore, in the first aspect of the present invention, the support portion that rotatably supports the door body is provided with a bearing portion that is rotatably supported by the shaft portion that extends in the width direction at one end of the door body. Even if a load from the bag body acts on this door body, the load is applied to each component member constituting the support portion. Reasonable transmission is performed without concentrating on a part, and there is no problem such as deformation or breakage in each component member, and normal rotation of the door body is continued.

According to a second aspect of the present invention, in the first aspect of the present invention, each of the bearing fitting portions protrudes in a substantially horizontal direction from above and below a substantially vertical installation surface provided at an installation location. And the connecting means includes a fixed pin inserted through the pair of upper and lower bearing fitting portions and the bearing portion inserted into the pair of upper and lower bearing fitting portions in a substantially vertical direction, It is characterized by being connected to each other.
Therefore, in the second aspect of the present invention, the bearing portion is inserted into the pair of upper and lower bearing fitting portions projecting in the substantially horizontal direction from the installation surface, and the fixing pin is inserted into the pair of upper and lower bearing fitting portions in the substantially vertical direction. A pair of upper and lower bearing fittings and a bearing are inserted through the bearing and when the load from the bag acts on the door, the load transmitted between the bearing and the fixed pin is Since it is transmitted by the two-surface shearing of the fixing pin and the allowable load is about twice as much as that when it is transmitted by the one-surface shearing, it is advantageous in terms of strength. Similarly, the load transmitted between the shaft portion and the bearing portion is transmitted by the two-surface shearing of the shaft portion, and is approximately twice that when the allowable load is transmitted by the one-surface shearing. Therefore, it becomes advantageous in strength.

The invention described in claim 3 is the invention described in claim 1 or 2, further comprising a spacer inserted through the shaft portion and disposed between the adjacent bearing portions, wherein each bearing portion is each bearing. When fitted into the fitting portion, the spacer comes into contact with the installation surface or a projection portion protruding substantially horizontally from the installation surface.
Therefore, in the third aspect of the invention, when the bearing portion is fitted to the pair of upper and lower bearing fitting portions, the spacer is brought into contact with the installation surface or the projection portion protruding substantially horizontally from the installation surface. Even if the door is raised and a load from the bag acts on the door, this load is transmitted to the installation surface via the spacer.

  According to the undulating weir device of the present invention, when the door body is erected by inflating the bag body, a predetermined load from the bag body acts on the back surface of the door body, and the door body is rotated. A load corresponding to the predetermined load also acts on the support portion that is freely supported, but this load is not concentrated on one place of each constituent member that constitutes the support portion, and is rationally transmitted and supported. The door body can be normally rotated without causing a problem in each component member of the section. In addition, since the support portion can be made compact, it is possible to eliminate manufacturing problems and to provide an inexpensive hoisting weir device without requiring high dimensional control.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to FIGS.
The undulating weir device 1 according to the embodiment of the present invention is installed on a river bed 2, a water channel floor, a breakwater, or the like. In this description, a case where it is installed on a river bed 2 will be described.
As shown in FIG. 1, the undulating weir device 1 is provided with a door body 4 installed in a dug portion 3 in which a river bed 2 is dug down, and a lower portion of the door body 4, and compressed air is supplied to an internal space 5a. A bag body 5 that is discharged and expands or contracts, and a support portion 6 that rotatably supports the door body 4 are provided.
As shown in FIGS. 1 and 6, the door body 4 has a substantially rectangular skin plate 7 that dams the flow of water in the river upstream of the undulating weir device 1 when standing, and this skin plate 7 Are provided with a plurality of ribs 8 extending in parallel to each other in the longitudinal direction. The ribs 8, 8 have one end on the upstream side of the river protruding from one end on the upstream side of the river of the skin plate 7, and the shaft 9 is penetrated and fixed to one end on the upstream side of the river of the ribs 8, 8. The shaft portion 9 extends at one end of the door 4 on the upstream side of the river along the width direction. The shaft portion 9 may be divided at an appropriate interval.

  Moreover, as shown in FIG.1 and FIG.6, as for the door body 4, the other stream downstream end of the skin plate 7 is on the back side (surface turned to the river downstream side when the door body 4 stands | starts) side. A plurality of ribs 10 are disposed along the width direction of the door body 4 (in the direction of the paper in FIG. 1) inside the refracting portion 7b. Further, a spoiler 11 is provided on the river downstream end face of these ribs 10 so as to protrude upward from the other river downstream end of the skin plate 7, and when the door body 4 is raised by the spoiler 11. The vibration of the door body 4 due to the water flow of the water flow over the skin plate 7 is prevented.

  Moreover, as shown in FIG.1 and FIG.5, the door body 4 is provided with the side part watertight rubber | gum 13 along the side part 7a of the skin plate 7 by the side wall 12 side of a river. One end of the side water-tight rubber 13 is fixed to the side portion 7a of the skin plate 7 by the fixing plate 14 and the fixing bolt 15, and the other end is refracted upstream of the river when the door body 4 stands. In close contact with the side wall 12 of the river. The side watertight rubber 13 prevents water leakage between the side wall 12 of the river and the side portion 7a of the door body 4 (skin plate 7). In the undulating weir device 1, a plurality of the door bodies 4 described above are arranged in parallel in the river width direction. In this case, each of the adjacent side portions 7a, 7a of the skin plates 7, 7 adjacent to each other is provided. The intermediate watertight rubber (not shown) fixed to the door prevents water leakage between the adjacent door bodies 4 and 4.

Further, as shown in FIG. 1 and FIG. 6, the upstream portion of the digging portion 3 has a step portion 15 extending in a substantially horizontal direction at a lower position one step below the river bed 2, and continuously from the step portion 15. A door stop (installation surface) 16 extending in a substantially vertical direction is provided, and the step portion 15 and the door stop 16 are reinforced by a steel material such as an angle material.
As shown in FIGS. 1, 3 and 6, the door body 4 is supported by the door stop 16 via the support portion 6 so as to be rotatable around the shaft portion 9 at one end on the upstream side of the river.
The support portion 6 is rotatably inserted into a shaft portion 9 extending in the width direction at one end of the upstream side of the river of the door body 4, and a block-shaped bearing portion 20 disposed on both sides of the ribs 8 and 8. The plate-like bearing fitting portions 21 and 21 ′ extending in a substantially horizontal direction from the upper and lower sides of the door stopper 16 and fitted with the respective bearing portions 20, the pair of upper and lower bearing fitting portions 21 and 21 ′, and the pair of upper and lower portions The bearing portion 20 is inserted into the bearing fitting portion 21, 21 ′ in a substantially vertical direction, and a fixing pin 22 is connected to each other.
Therefore, the connecting means for connecting the pair of upper and lower bearing fitting portions 21 and 21 'and the bearing portion 20 is, as described above, the bearing portion 20 inserted into the pair of upper and lower bearing fitting portions 21 and 21'. In this configuration, the fixing pins 22 are inserted and connected in a substantially vertical direction.
Further, as shown in FIGS. 2 and 6, a substantially cylindrical spacer 23 is inserted into the shaft portion 9 between the bearing portions 20, 20 supported by the shaft portion 9 and adjacent to each other.

  As shown in FIGS. 1, 4 and 6, the upstream end surfaces 8 a and 8 a of the ribs 8 and 8 of the door body 4 on the upstream side of the door body 4 are applied to the upper portion of the door stop 16 when the door body 4 stands up. Stopping stoppers 25, 25 project from the downstream side of the river. Further, in the middle portion of the door stop 16, between the pair of upper and lower bearing fitting portions 21, 21 'adjacent in the width direction, each bearing portion 20 is fitted to each pair of upper and lower bearing fitting portions 21, 21'. When this is done, a projecting portion 26 with which the spacer 23 inserted through the shaft portion 9 of the door body 4 abuts is provided on the downstream side of the river. Further, as shown in FIGS. 3 and 6, a support plate 30 is formed on the upper portion of the door stop 16 to support a lower watertight rubber 31 to be described later when the door body 4 is lying down.

  Further, as shown in FIG. 1, the upstream end of the lower water-tight rubber 31 on the upstream side of the step 16 of the door stop 16 is clamped by the rubber pressing plate 32 and the bolt 33, and the lower water-tight rubber 31 The other end on the downstream side of the river is pressed against a rubber base 34 that is installed on each rib 8, 8 of the door body 4 by a rubber pressing plate 35 and a bolt 36.

As shown in FIGS. 1 and 3, the bag body 5 is made of a rubberized cloth, is provided below the door body 4, and is fixed to the digging portion 3. The bag body 5 is formed with a plate-like fixed portion 40 extending in the river width direction on the upstream side of the river. A mandrel 37 is embedded in the width direction of the bag body 5 along one end of the fixed portion 40 on the upstream side of the river, and the thickness of the portion is larger than the thickness of the fixed portion 40. , Functioning as the locked portion 41. The locked portion 41 is disposed immediately below the lower bearing fitting portion 21 ′, and the fixed portion 40 is provided on the lower bearing fitting portion 21 ′ and the circular protrusion 39 provided on the fixing bracket 38. By being pressed from above and below, the locked portion 41 is locked and the bag body 5 is fixed along the fixing bracket 38. The fixing metal 38 is fixed along the digging portion 3.
Further, a supply / exhaust pipe (not shown) disposed in the ground of the dug-down portion 3 is communicated with the internal space 5a of the bag body 5, and air is supplied from an air supply / discharge apparatus (not shown) via the supply / discharge pipe. Thus, the bag body 5 is expanded or contracted.

Next, the operation of the hoisting weir device 1 according to the embodiment of the present invention will be described.
First, as shown in FIG. 3, the undulating weir device 1 is arranged in the river dug-down part 3. That is, the door body 4 is rotatably supported by the door stop 16 via the support portion 6, and the bag body 5 is fixed below the door body 4. At this time, the spacer 23 inserted through the shaft portion 9 of the door body 4 is in a state of being in contact with the protruding portion 26 protruding from the door stop 16 (see FIG. 4). Further, the upper surface of the lower watertight rubber 31 and the surface of the river bed 2 are arranged on the same plane.
From this state, as shown in FIG. 1, when compressed air is supplied from the air supply / discharge device to the internal space 5a of the bag body 5 via the supply / discharge pipe, the bag body 5 gradually expands, The back surface of the door body 4 is pressed by the expansion of the body 5, and the door body 4 is rotated counterclockwise around the shaft portion 9 while the side watertight rubber 13 is slid on the side wall 12 of the river.

Next, when the bag body 5 continues to expand and the door body 4 is rotated, as shown in FIGS. 1 and 6, the river upstream end surfaces 8 a and 8 a of the ribs 8 and 8 of the door body 4 are In addition to being in contact with the stoppers 25, 25 provided on the upper portion of the door stop 16, the rotation of the door body 4 is restricted, and the door body 4 is erected at a predetermined angle with respect to the digging portion 3. Become.
In a state where each of the plurality of door bodies 4 arranged side by side is erected, the side portions 7a and 7a of the door bodies 4 and 4 arranged along the both side walls 12 and 12 of the river and the both side walls 12 of the river , 12 are provided with the respective side watertight rubbers 13 and 13 to prevent water leakage between them. Further, an intermediate watertight rubber is disposed between the door bodies 4 and 4 adjacent to each other, and water leakage between them is prevented. Furthermore, a lower watertight rubber 31 is disposed between the lower ends of the plurality of door bodies 4 arranged side by side and the river bed 2, thereby preventing water leakage therebetween.

  Next, from the state of FIG. 1, when compressed air is discharged from the internal space 5 a of the bag body 5 to the air supply / discharge device via the supply / discharge pipe, the bag body 5 gradually contracts, and the door body 4. Due to its own weight, each side watertight rubber 13, 13 is slid on the river side walls 12, 12, and is rotated clockwise around the shaft portion 9 and stored in the dug-down portion 3.

According to the undulation weir device 1 according to the embodiment of the present invention described above, the following effects can be obtained.
In a state where the compressed air is supplied to the internal space 5a of the bag body 5 provided below the door body 4 and the door body 4 is erected at a predetermined angle with respect to the digging portion 3, the rear surface of the door body 4 is A relatively large predetermined load from the bag body 5 acts on substantially the entire surface, and a load corresponding to the predetermined load acts on the support portion 6.
And when the load which acts on the support part 6 via the door body 4 from the bag body 5 is transmitted between the bearing part 20 and the fixed pin 22, it is transmitted by the two-surface shear of the fixed pin 22. In addition, since the allowable load is approximately twice that of the case where the load is transmitted by one-surface shearing, it is advantageous in terms of strength, and the fixing pin 22 can be prevented from being deformed or damaged. Similarly, when the load acting on the support portion 6 is transmitted between the shaft portion 9 and the bearing portion 20, the load is transmitted by the two-surface shear of the shaft portion 9, and the allowable load is one surface. Since it is about twice as much as when it is transmitted by shearing, it is advantageous in terms of strength, and deformation, breakage, etc. of the shaft portion 9 can be prevented.

  Therefore, even if a load from the bag body 5 acts on the support portion 6, rational transmission is performed without the load being concentrated on one of the constituent members constituting the support portion 6. The normal rotation operation of the door body 4 can be continued without causing problems such as deformation and breakage in each of the constituent members.

Further, a spacer 23 inserted through the shaft portion 9 is provided between the adjacent bearing portions 20 and 20, and a fixed pin is attached to a pair of upper and lower bearing fitting portions 21 and 21 ′ corresponding to each bearing portion 20. When the door body 4 is erected by the spacer 23 coming into contact with the projection 26 projecting from the door stop 16 when connected by the door 22, the load from the bag body 5 is passed through the spacer 23 through the spacer 23. It is possible to reliably transmit 16 hits.
In the present embodiment, the spacer 23 is brought into contact with the protrusion 26 projecting from the door stop 16 in a substantially horizontal direction so that the load from the bag 5 is transmitted to the door stop 16 through the spacer 23. However, it is also possible to transmit the load from the bag body 5 to the door stopper 16 via the spacer 23 as a form in which the protrusion 26 is not provided on the door stopper 16 and the spacer 23 is brought into direct contact with the door stopper 16. It is.
The spacer 23 prevents the bag body 5 from being caught between the river upstream end of the door body 4 and the lower bearing fitting portion 21 ′ when the bag body 5 is contracted. Since it rotates with respect to the operation | movement which the body 5 expand | swells or shrink | contracts, the function as an idler is also fulfill | performed.

  As described above, in particular, in the structure of the support portion 6, a structure (fastening method) is adopted in which the load allowed by a small amount of material is set while suppressing the thickness and the like, so that the structure can be made compact. In manufacturing, high dimensional management is not necessary and there is a degree of freedom, and it has become possible to solve manufacturing problems.

FIG. 1 is a undulation weir device according to an embodiment of the present invention, and is a side view showing a state in which a door body is erected. FIG. 2 is a top view of the vicinity of the shaft portion provided at one end of the door body. FIG. 3 is a side view of the vicinity of the support portion when the door body is laid down. FIG. 4 is a side view showing a state in which the spacer inserted into the shaft portion at one end of the door body is in contact with a protruding portion protruding from the door stop. FIG. 5 is a cross-sectional view taken along line AA in FIG. FIG. 6 is an exploded perspective view of the undulation weir device according to the embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Undulating dam device 4 Door body 5 Bag body 9 Shaft part 20 Bearing part 21, 21 'Bearing fitting part 22 Fixing pin 16 Door contact (installation surface)
23 Spacer 26 Projection

Claims (3)

In the undulation weir device for raising or lowering the door body by expanding or contracting the bag body provided below the door body,
The undulating weir device is rotatably supported by a shaft portion extending in the width direction at an end portion of the door body, and is provided at a plurality of bearing portions arranged along the shaft portion, and at installation locations. A hoisting weir device comprising at least a plurality of bearing fitting portions into which the bearing portions are fitted, and a connecting means for connecting the bearing fitting portions corresponding to the bearing portions. Each of the bearing fitting portions is configured to project in a substantially horizontal direction from above and below an installation surface extending in a substantially vertical direction provided at an installation location, and the coupling means includes the pair of upper and lower bearing fittings. 2. The structure according to claim 1, wherein a fixing pin is inserted in a substantially vertical direction through the portion and the bearing portion inserted into the pair of upper and lower bearing fitting portions, and is connected to each other. Undulating weir device. The spacer further includes a spacer that is inserted through the shaft portion and disposed between the adjacent bearing portions, and when the respective bearing portions are fitted into the respective bearing fitting portions, the spacer is the installation surface or the installation The undulating weir device according to claim 1, wherein the undulating dam device is in contact with a protruding portion protruding substantially horizontally from the surface.

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