JP3484654B2 - Watertight rubber plate with tongue and sluice gate using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The door of a floodgate is provided with rollers on both sides, and the rollers are supported by a door stop provided on both sides of a pier or a seawall to raise and lower the door to open and close a water channel. There is also a sluice that removes the rollers and slides the door up and down. Normally, the edge of the door is pressed against the door stop by the water pressure of the water flow, so that a watertight rubber plate is interposed to make the doortight. The present invention relates to a watertight rubber plate with a tongue piece necessary for watertightness of a dam and a sluice using the rubber plate.

[0002]

2. Description of the Related Art Conventionally, a water gate having a structure for vertically raising and lowering a door body is provided with a door stop for holding the door body on a side wall, and a roller is interposed between the door body and the door stop. A sliding type structure is known in which sliding contact is made directly. Figure 5
The sluice gate 1 shown in FIG. 1 is provided with a doorway 4 by forming a groove in a vertical direction on a concrete wall 3 protruding from both sides of a waterway 2, and each door 4 accommodates rollers 6 provided on both edges of a door body 5. Thus, the door body 5 can be moved up and down.

Further, an operation room 7 is provided by being stretched over a concrete wall 3 protruding from both banks of the waterway 2, and an internal drive unit 8 lifts and lowers a door body 5 to open and close the water gate 1. . The door body 5 provided in the sluice gate 1 is normally subjected to water pressure by the water flow (arrow in FIG. 5) flowing from the upstream side to the downstream side, and the edge portion of the door body 5 is pressed against the door stop 4. Watertightness is maintained by providing a watertight rubber plate 9 at this location.

[0004]

By the way, in the floodgate 1 provided in the irrigation canal or the downstream river, the water pressure applied to the door body 5 fluctuates between the upstream side and the downstream side due to water level fluctuations and tidal tides.
There is a case where water pressure is applied to both sides or the side opposite to the side where normal water pressure is applied. Therefore, in the watertight structure of the door body 5 provided in the floodgate 1, in the case of both sides of the door body 5 and the reverse watertight stop water,
The shape of the watertight rubber plate 9 is attached according to the current situation, such as using a Y-shaped cross section or a flat rubber back to back. However, with the above means, workability is poor due to a special shape or a complicated mounting method, and since the structure becomes complicated, there is a possibility that the watertight rubber plate 9 may be turned over or curled up. It is necessary to perform an inspection work to check whether the safety and the lifting operation are reliable. When the conventional P-shaped rubber section is used and the mounting method is the reverse of the normal mounting method, only the reverse watertightness is effective and the object cannot be achieved.

It is an object of the present invention to provide a watertight rubber plate with a tongue piece for improving the watertightness and reverse watertightness of a watergate door and a watergate using the same.

[0006]

In order to achieve the above object, the invention relating to a watertight rubber plate with a tongue piece according to claim 1 has a circular cross section and a rectangular cross section which is in contact with one point and extends to one side. And, on the outer peripheral surface of the cross- section rectangular portion side from a location on the side opposite to the contact of the cross-section annular portion, facing the cross-section rectangular portion side,
In addition, it is common to make the cross-section rectangular portion side concave so that the space is widened, and to make the tip narrower than the width of the cross-section annular portion.
A cross-section arcuate tongue projectingly formed to be longer than the radius of the cross- section annular part, with respect to the rubber hardness of the cross-section annular part,
The cross-section arcuate tongue is made to have a larger rubber hardness and is integrally formed of rubber, and when the cross-section rectangular part is mounted on the door body of the floodgate, the cross-section annular part and the cross-section arcuate tongue face each other the doorstop of the opposing walls, characterized in that the two points of the cross-section annular portion and the cross-sectional arc <br/> Joshitahen was formed in contact.

In the invention relating to the watertight rubber plate with tongue according to claim 2, in the invention according to claim 1, the rubber hardness of the annular portion of the cross section is set to about 55 °, while the rubber hardness of the tongue with an arcuate cross section. Is about 60 °.

[0008] The invention according to tongue Katazuki watertight rubber plate according to claim 3 is the invention according to claim 1 or claim 2, the cross-sectional
It is characterized in that the surface arcuate tongue and the annular cross-section which is connected to the arcuate tongue in cross section are coated with urethane resin on the sliding contact part with the opposing wall of the door stop .

In order to achieve the above-mentioned object, the invention according to the water gate of claim 4 is provided with a door stop vertically on both side wall surfaces of the water channel, and both edges of the door body are supported by the door stop. between the doorstop and downstream edges of the cross-section annular portion, and a rectangular cross section portion extending on one side in contact with the one point, and the contact of the cross section <br/> annular portion opposite the outer peripheral surface of the rectangular cross section portion side of the portion of the side, said toward the rectangular cross section portion, and, as the interval is widened, and the rectangular cross section portion in a concave shape, the
The tip is narrower than the width of the ring section,
With a cross-section arcuate tongue formed to project longer than the radius of the ring part ,
With respect to the rubber hardness of the annular section, the arc-shaped tongue section
With a tongue that is made of rubber to increase the rubber hardness of
Watertight rubber plate, the rectangular cross-sectional portion is provided by mounting the door body as the base surface, the opposite of the doorstop two points of the cross-section annular portion and the cross-sectional arcuate tongue of the tongue Katazuki watertight rubber plate It is characterized by being in contact with the wall.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 2, the door body 5 (one side is shown) provided in the sluice gate 1 is provided with rollers 6 at its ends. Usually, the rollers 6 are provided above and below both edges of the door body 5, and are made of concrete. It is housed in a door stop 4 provided on a wall 3 and supports a door body 5. The sluice gate 1 raises and lowers the door body 5 to open and close the water channel 2, but when the door body 5 is lowered to close the sluice gate 1, the present invention is provided on both downstream side edges of the door body 5.
The watertight rubber plate 9 with the tongue piece according to the embodiment is extended in the vertical direction so that the watertightness is maintained.

As shown in FIG. 1, four facing walls (water,
The watertight rubber plate 9 with a tongue piece that contacts the dense wall) 4a has a cross-sectional shape of an annular portion (circular annular portion) 9a and a rectangular portion (rectangular sectional portion) 9b that contacts one point and extends to one side. And an arc-shaped tongue piece formed by projecting the rectangular portion 9b side into a concave shape from the outer circumferential surface of the annular portion 9a on the side of the rectangular portion 9b from the location opposite to the contact point between the rectangular portion 9b and the annular portion 9a. (Arc section
Tongue piece 9c is integrally formed. Also, the annular portion 9a
The continuous surface of the arc-shaped tongue piece 9c is smoothly curved.

[0012] tongue Katazuki arc-shaped tongue piece 9c of the watertight rubber plate 9,
The protruding base portion is formed to have the same width as the width of the annular portion 9a,
The protruding length is about 1.5 times the radius of the annular portion 9a, and its tip is thin. And each part of the watertight rubber plate 9 with a tongue piece is manufactured with different rubber hardness (here, the annular part 9a and the rectangular part 9b have a rubber hardness of about 55 °,
The arc-shaped tongue piece 9c has a rubber hardness of about 60 °. ). Also,
The entire surface of the arc-shaped tongue piece 9c and the opposing wall 4 of the annular portion 9a connected to the arc-shaped tongue piece 9c.
The sliding contact portion with a is coated with urethane resin U (here, as shown in FIG. 1, the coating surface is approximately half the circumference of the annular portion 9a indicated by the two boundary arrows and the outside of the arcuate tongue piece 9c. Inside.). Further, as shown in FIG. 1, the tongue
When the rectangular portion 9b of the attached watertight rubber plate 9 is mounted on the end surface of the door body 5 with the rectangular portion 9b as the base surface, the annular portion 9a and the arcuate tongue piece 9c are attached.
Has an annular portion 9 on the opposing wall 4a of the door stop 4 which faces it.
It is formed so that two points of a and the arcuate tongue piece 9c are in contact with each other. Reference numeral 10 is a bolt, and reference numeral 11 is a holding plate.

The watertight rubber plate 9 with a tongue piece can be manufactured by extrusion molding, but it can also be press-molded by a mold. Further, the arcuate tongue 9c is thin and long near the water surface, and the arcuate tongue 9c is thick and short near the riverbed,
The length and thickness of the arc-shaped tongue piece 9c can be appropriately formed according to the assumed water pressure. As a result, even if the water pressure near the water surface is small, the arcuate tongue piece 9c is easily pressed and brought into pressure contact with the opposing wall 4a to be in a watertight state. In this mounting structure, the tongue
When the watertight rubber plate 9 with a piece is positioned and fixed by the pressing plate 11, a movable space for the arcuate tongue piece 9c is secured.

Next, the operation of the watertight rubber plate 9 with a tongue piece according to the embodiment of the present invention will be described. When the door body 5 is lowered and the sluice gate 1 is closed, the annular portion 9a of the watertight rubber plate 9 with the tongue piece is normally set to 4 at the door stop due to the water pressure from running water from the upstream side.
It is pressed against the opposing wall 4a to be in a watertight state and the upstream side and the downstream side are separated. When the water pressure upstream and downstream reverses due to water level fluctuations and tides, the door body 5 presses the door stop 4 from the downstream side. In this case, watertight rubber plate 9 Katazuki tongue provided on the door 5 side edges, concave side inner arcuate tongues 9c is pressed by the water pressure on the downstream side can be effectively utilized water pressure on the downstream side. Earlier portion of a convex shape (arc) on the outside of the arcuate tongues 9c
Therefore, the convex shape on the outside of the arcuate tongue piece 9c is 4
It is pressed in surface contact with the opposing wall 4a of the doorstop 4 abut the opposing wall 4a. Further , when the water pressure on the downstream side further increases, the inner concave side of the arcuate tongue piece 9c is strongly pressed, and the outer convexity of the arcuate tongue piece 9c becomes even larger in surface contact with the opposing wall 4.
It comes into close contact with a. Further, when the water gate 1 is opened and closed when the water pressure is high, the rubber hardness is increased so that the shape of the arcuate tongue piece 9c becomes stronger against external force.
Since the coated urethane resin reduces the sliding resistance of the watertight rubber plate 9 with a tongue piece , the phenomenon of distortion and curling can be prevented, and the stable operation of the up-and-down movement of the door body 5 can be obtained, and the reliability is also enhanced. is there.

Further, as shown in FIGS. 3 (a) and 3 (b),
Roller shift hardware (gap filling hardware) on the bottom side of the door
When 12 is fixed and the roller 6 is press-fitted at the lowest position where the door body 5 descends, the water- tightness of the watertight rubber plate 9 with the tongue piece is prevented because the door body 5 is prevented from shaking due to water pressure or running water. Will be improved. In addition, FIG.
As shown in (b), in the sluice 1 in which the door body 5 is slid up and down, guide shoes 13 are provided at both ends of the door body 5, and the pressure support member is provided together with the watertight rubber plate 9 with a tongue piece. 14 are provided. When the sluice gate 1 is closed, with a tongue piece
The watertight rubber plate 9 is pressed against the opposing wall 4a of the door stop 4, but the pressure bearing member 14 is also sandwiched therebetween, so that the watertight rubber plate 9 with the tongue piece is not crushed beyond the limit of this interval. ing. Further, on the side opposite to the watertight rubber plate 9 with the tongue piece of the door body 5, a wedge metal (gap-filling metal) 15a having an acute lower end is provided at the lower portion of the door body 5, and the door strikes corresponding to the wedge metal 15a. A wedge metal (gap filling metal) 15b having an acute upper end is provided in the lower part of the No. 4 unit. Wedge hardware 15a,
15b is the door body 5 in the same manner as the roller gathering tool 12 described above.
Are overlapped with each other when they fall, and the swinging of the door body 5 against water pressure is prevented, and the watertightness of the watertight rubber plate 9 with a tongue piece is improved.

[0016]

As described above, in the invention relating to the watertight rubber plate with tongue according to the first aspect of the invention, the cross-section annular portion,
A tongue composed of a rectangular cross section and an arc tongue in cross section
Since the attached watertight rubber plate is not complicated in shape and can be extruded or the like, it is easy to manufacture, and since the mounting method is the same as that of the conventional one, the door side has a general structure and the construction cost is reduced.
Moreover, the tongue Katazuki watertight rubber plate, when mounted on the door of the sluice a rectangular cross section portion as a base surface, the shape of the cross section arcuate tongues,
Make the rectangular side of the cross section concave so that the front part is wider than the width of the ring cross section.
In addition to making it thin, it is formed to project longer than the radius of the annular section.
The rubber hardness of the circular ring section,
Since the rubber hardness of one piece is increased and it is configured integrally with rubber,
When water pressure is applied from the opposite direction, the cross-section ring section and cross-section
The two points of the arcuate tongue can be smoothly brought into close contact with the opposing wall by utilizing the water pressure, and the reverse watertight state can be achieved by a simple structure. The watertight rubber plate with tongue according to claim 2.
In such invention, the hardness of the cross-sectional arcuate tongues, since normally a larger rubber hardness than the ring portion of the hardness, sectional against reverse pressure
The arcuate tongue does not bend locally, and the tip of the arcuate tongue in cross section can be reliably brought into close contact with the opposing wall.
In the invention according to the watertight rubber plate with tongue according to claim 3,
When the watertight rubber plate with the tongue is attached to the door of the floodgate, the sliding contact with the facing wall of the door contact of the arc-shaped tongue with a cross section and the ring- shaped section that connects to the tongue with a cross section is coated with urethane resin. Moreover, it becomes easy to raise and lower the door body against the water pressure. Further, it is not necessary to increase the size of the drive device for raising and lowering the door body .

According to another aspect of the present invention, there is provided a floodgate having a structure for raising and lowering a door body, wherein a cross-section annular portion and a cross-section arcuate tongue piece are provided between both edge portions on the downstream side of the door body and the door stop. Of 2
Watertight with tongues so that the points make contact with the opposite wall of the doorstep
Since the rectangular section of the rubber plate is attached to the edge of the door body, it is possible to prevent the tongue piece having an arcuate section from being curled up or curled up when the door body is moved up and down. Also, if the double-sided and reverse water pressure is applied to the door body, cross-sectional arcuate tongues are pressed from a more inward water pressure,
The tip of the tongue with an arcuate cross section is pressed against the opposing wall of the door stop to improve the watertight state. Further , the watertightness of the door body is increased according to the reverse water pressure, and the reverse watertight water stop is possible.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing a watertight rubber plate used in a floodgate according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part of the floodgate used in FIG.

FIG. 3 is a schematic diagram illustrating a main part of the floodgate of FIG. 1 with a plane (a) and a side surface (b).

FIG. 4 is a schematic diagram illustrating another main part of the floodgate of FIG. 1 with a plane (a) and a side surface (b).

FIG. 5 is a schematic view of a conventional floodgate.

[Explanation of symbols]

1 floodgate 2 waterways 3 concrete walls 4 units 4aOpposing wall (watertight wall) 5 door body 6 roller 9With tongueWatertight rubber plate9a Cross-section annular part (annular part) 9b Rectangular section (rectangular section) 9c Sectional arc tongue (arc tongue) U Urethane resin (coating)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor, Koji Inami               6093-4 Mizou, Saijo-cho, Higashihiroshima City, Hiroshima Prefecture (72) Inventor Norio Izumi               6-3-1 Takamiyagaoka, Takaya, Higashihiroshima City, Hiroshima Prefecture                (56) Reference JP-A-5-272123 (JP, A)                 Registered utility model 3059403 (JP, U)

Claims (4)

(57) [Claims] And 1. A cross-sectional annular portion, and a rectangular cross section portion extending on one side in contact with the one point on the outer peripheral surface of the rectangular cross section portion side from the opposite side of the portion and the contact of the cross-section annular portion, The cross section is directed toward the rectangular portion side and the interval is widened.
The cross-section rectangular part side is concave, and the width of the cross-section annular part
And a cross-section arcuate tongue that is formed so as to be thin and project longer than the radius of the ring- shaped cross section.
Increase the rubber hardness of the tongue with a cross section
Integrally constructed of rubber Te, when the rectangular cross section portion is attached to the door body of the sluice as a base surface, the cross-sectional circular ring portion and the cross-sectional
The opposing walls of the doorstop facing the surface arcuate tongue, the cross-sectional circular ring portion and tongue Katazuki watertight rubber plate 2 points characterized by being formed to contact the cross-sectional arcuate tongue. 2. A relative to that of about 55 ° rubber hardness of the cross-section annular portion, about 60 ° of rubber hardness of the cross-sectional arcuate tongue
The watertight rubber plate with tongue according to claim 1, wherein 3. A urethane resin is used to coat a sliding contact portion of the cross-section arcuate tongue and the cross-section annular portion that is in contact with the cross-section arcuate tongue with the facing wall of the door stop. The watertight rubber plate with a tongue according to claim 1 or 2. 4. A vertically provided doorstop waterways both sidewalls to support the edges of the door body in the doorstop, between the doorstop and downstream edges of the door body, sectional circular A section, a rectangular section in contact with one point thereof and extending to one side, an outer peripheral surface of the section rectangular section side from a point opposite to the contact point of the section annular section, toward the section rectangular section side, In addition, the cross-section rectangular portion side is made concave so that the space is widened, and the cross- section annular ring is formed.
The front part is narrower than the width of the part,
A cross-sectional arcuate tongues is longer protrude from the diameter, the cross-section
Compared with the rubber hardness of the annular portion,
Watertight rubber with a tongue that is made of rubber to a greater degree
The plate, and attached to the door body the rectangular section part a base surface
Provided, the cross-sectional annular portion of the watertight rubber plate with the tongue and the front
Sluice, characterized in that the two points of the serial cross-sectional arcuate tongue is brought into contact with the opposing wall per the door.