JP4201072B2 - Rubber weir - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rubber weir arranged so as to cross a river or an irrigation canal, and more specifically, when the rubber weir collapses, the fluid in the rubber weir, particularly air, is exhausted efficiently and in a short time, is relates to a rubber dam to a rubber dam surface and the smooth surface.
[0002]
[Prior art]
Conventionally, a rubber weir for water intake for taking in agricultural water is formed by laminating a plurality of fiber reinforced rubber sheets provided with rubber layers on both sides of a core body reinforcing layer, and forming this into a belt-like bag or It is arranged so as to cross the irrigation channel and is fixed to the floor or slope of the river or irrigation channel.
[0003]
Then, by supplying fluid such as air into the bag body and inflating it up, it can be used as an intake weir for rivers or irrigation canals, etc. I try to let them.
[0004]
[Problems to be solved by the invention]
By the way, in the rubber weir as described above, for example, as shown in FIG. 6, the inner wall surface 2 of the rubber weir 1 is used to efficiently supply and discharge the fluid in the rubber weir when the rubber weir stands or falls. Further, a ventilation pipe 3 such as a vinyl pipe is attached by a fixing band 4.
[0005]
However, when the rubber weir 1 is in a lying state, the outer rubber layer of the attachment portion of the ventilation pipe 3 protrudes as a projection 5 only at a portion corresponding to the thickness of the ventilation pipe 3 as shown in FIG. The surface of the outer surface rubber layer 5 is subject to wear and damage due to the river flow, and there is a problem that the life of the rubber weir 1 is shortened.
[0006]
The object of the present invention is to discharge the enclosed fluid in a short time and completely when the rubber weir is overlaid, and to make the rubber weir surface smooth and extend the durability and life of the rubber weir. To provide a weir .
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention forms a rubber weir from a plurality of fiber reinforced rubber sheets each having a core reinforcing layer coated with a rubber layer into a belt-like bag body, and supplies the rubber layer on the inner surface of the bag body to the rubber layer. The gist is that a groove communicating with the outlet is directly formed .
[0008]
At least one groove is formed from one end to the other end side in the longitudinal direction of the rubber weir, and at least one groove is formed in the longitudinal direction and the circumferential direction of the rubber weir. It is also possible to form the grooves so that they intersect and communicate with each other.
[0009]
Thus, the rubber weir is formed into a belt-like bag body from a plurality of fiber-reinforced rubber sheets coated with a rubber layer on a core reinforcing layer, and a groove communicating with the supply / exhaust port is formed in the rubber layer on the inner surface of the bag body. By forming directly , when the rubber weir falls, the sealed fluid can be completely discharged, and there is no protrusion on the surface of the outer rubber layer and it always becomes a smooth surface. Wear and damage can be prevented, and the life of the rubber weir can be extended.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0011]
Note that the same components as those in the conventional example are denoted by the same reference numerals and description thereof is omitted.
[0012]
FIG. 1 is a perspective view showing a state in which a rubber weir 10 according to an embodiment of the present invention is installed and fixed to a slope 6a and a floor 6b of a river or irrigation channel 8 by a fastening member 7 such as a bolt, and FIG. FIG. 3 is a cross-sectional view of the rubber weir 10 when it is lying down.
[0013]
As shown in FIGS. 3 to 5, the rubber weir 10 includes a fiber reinforced rubber sheet 13 in which rubber layers 12 a and 12 b are coated on each surface of the core reinforcing layer 11, and rubber on both surfaces of the core reinforcing layer 11. A plurality of fiber reinforced rubber sheets 14 coated with the layer 12b are laminated, and the rubber layer 12a coated on the surface of the core reinforcing layer 11 is made of a different kind of rubber (for example, the rubber layer 12b) so as not to be vulcanized and bonded to the rubber layer 12b. In the case of EPDM, in the case of the rubber layer 12a, SBR, NBR, etc.).
[0014]
In the embodiment of the present invention, a groove 15 having a predetermined diameter (in this embodiment, a radius of about 4 mm with respect to a rubber thickness of 5 mm) is formed in the rubber layer 12a coated on the surface of the core reinforcing layer 11 in the rubber weir 10. It is formed so as to communicate with the supply / discharge port 17.
[0015]
The supply / discharge port 17 is provided in an arbitrary number at an arbitrary position on the slope 6a and / or the floor surface 6b, and is connected to a fluid supply / discharge device (not shown). FIG. 1 shows an example in which one is provided on each of the slope 6a and the floor 6b.
[0016]
At least one groove 15 is formed from one end in the longitudinal direction of the rubber weir 10 toward the other end, and at least one groove 15 is formed in the longitudinal direction and the circumferential direction of the rubber weir 10. It is also possible to form the direction grooves 15 so as to cross and communicate with each other.
[0017]
The groove 15 is formed by laminating the fiber reinforced rubber sheet 13 and the plurality of fiber reinforced rubber sheets 14 to form a belt-like rubber bag body, and after vulcanization molding, the width of the rubber bag body is formed. One side edge side in the direction is cut and peeled open as shown in FIG. 5, and a groove 15 is formed in one side of the rubber layer 12a in the longitudinal direction and the circumferential direction by a groove cutter or the like.
[0018]
Then, the rubber weir 10 formed in this way is moved to the installation location, the opening side edge side is sealed, the clamp portion 16 is formed, and the slope 6a of the river or the irrigation channel 8 is connected with the fastening member 7 such as a bolt. It is installed and fixed on the floor surface 6b.
[0019]
Thus, by forming the groove 15 communicating with the supply / exhaust port 17 of the rubber weir 10 on the inner wall surface of the rubber weir 10, the sealed fluid can be completely discharged when the rubber weir 10 falls down, Since the surface of the rubber layer has no protrusions and is always a smooth surface, local wear and damage due to a falling material or the like can be prevented, and the life of the rubber weir can be extended.
[0020]
【The invention's effect】
According to the present invention, a rubber weir is formed into a belt-like bag body from a plurality of fiber reinforced rubber sheets coated with a rubber layer on a core body reinforcement layer as described above, and the rubber layer on the inner surface of the bag body is provided with the above-mentioned supply / discharge port. Since the communicating groove was directly formed, when the rubber weir collapses, the enclosed fluid is completely discharged in a short time and the rubber weir surface is made smooth to extend the durability and life of the rubber weir. There is an effect that can be.
[0021]
In addition, since it is not necessary to install a ventilation pipe as in the prior art, the installation work can be simplified.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a rubber weir according to an embodiment of the present invention is installed and fixed on a slope and a floor surface of a river or an irrigation channel by a fastening member.
FIG. 2 is a perspective view of the rubber weir according to the present invention when standing.
FIG. 3 is a cross-sectional view of a rubber weir when lying down.
FIG. 4 is a partial cross-sectional view of a rubber weir when lying down.
FIG. 5 is an explanatory diagram when a groove is formed in a rubber weir.
FIG. 6 is a cross-sectional view of a conventional rubber weir when standing up.
FIG. 7 is a cross-sectional view of a conventional rubber weir when lying down.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rubber weir 2 Inner wall surface 3 Ventilation pipe 4 Fixing band 5 Protrusion 8 River or waterway 6a Slope 6b Floor 7 Fastening member 10 Rubber weir 11 Core reinforcement layer 12a, 12b Rubber layer 13 Fiber reinforced rubber sheet 14 Fiber reinforced rubber Sheet 15 Groove 16 Clamping part 17 Supply / exhaust port

Claims (3)

Is disposed so as to cross the river or canal, and a rubber dam to more upright or collapsed to a fluid supplied to and discharged from該河river or canal slope and / or supply-discharge port provided on the floor of,
The rubber weir is formed into a belt-like bag body from a plurality of fiber reinforced rubber sheets coated with a rubber layer on a core body reinforcement layer, and a groove communicating with the supply / discharge port is directly formed in the rubber layer on the inner surface of the bag body Rubber weir. The groove, a rubber dam according to claim 1, wherein a longitudinal least one or more grooves extending from one end to the other end of the rubber dam. The groove, the longitudinal direction and the circumferential with at least one or more grooves each extending in a direction, the rubber dam according to claim 1 wherein said longitudinal and circumferential grooves are communicated to cross each other in the rubber dam.

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