JP3059403U - Watertight rubber plate and sluice gate using this - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a watertight rubber plate which enables both sides of a door provided on a watergate and reverse watertightness to stop water, and a watergate using the same. A watertight rubber plate (9) has an arc portion (9b) having a circular cross section, a flat plate portion (9a) extending in the tangential direction, and an annular portion (9).
b has a projection 9c formed in a direction forming an acute angle with the flat plate portion 9a. The sluice gate 2 supports rollers 8 provided on both edges of the door body 6 on door stops 7 provided on both side walls of the water channel, and a watertight rubber is provided between the edge of the door body 6 and the watertight wall 7a of the doorstop 7. The flat plate portion 9a of the plate 9 is attached to the edge of the door body 6, and the circular arc portion 9 of the watertight rubber plate 9 is mounted.
b and the projection 9c were brought into contact with the watertight wall 7a. In normal water pressure stoppage, the arc 9b is pressed against the watertight wall 7a to maintain watertightness. Conversely, when water pressure is applied to the opposite side of the door body 6, the projection 9c is formed.
Is pressed against the watertight wall 7a from the inside, so that reverse watertightness can be achieved.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 Rollers on the gate of the floodgate are provided with rollers on both sides, and the rollers are supported by piers or door stops provided on both sides of the revetment. There is also a floodgate that removes the roller and raises and lowers the door in a sliding manner. Normally, the edge of the door body 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 watertight state. The present invention relates to a watertight rubber plate used in this way and a floodgate using the same.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 4, a sluice gate 2 installed in a water channel 1 is laid over a concrete wall 3 protruding from both sides of a revetment, an operation room 4 is arranged, and a door 5 is driven by an internal driving device 5. The body 6 is raised and lowered to open and close the floodgate 2. A groove 7 is formed in the opposing concrete wall 3 in a vertical direction, and a door stop 7 is provided. The door stop 7 accommodates rollers 8 provided on both edges of the door body 6 and accommodates the vertical movement of the door body 6. Making it easier. The water gate that slides the door body 6 into sliding contact with the door stop 7 will be described later.

The door 6 provided on the water gate 2 is normally subjected to water pressure by a water flow (arrow in FIG. 4) flowing from upstream to downstream, and the edge of the door 6 is pressed against a door stop 7. Watertightness is maintained by providing a watertight rubber plate 9 at this location.

[0004]

[Problems to be solved by the invention]

 By the way, in the floodgate 2 provided in the irrigation canal or the downstream river, the water pressure applied to the door body 6 due to the fluctuation of the water level or the tide may be applied to both sides of the door body 6 or the opposite side of the normal door body 6. Therefore, in the watertight structure of the door body 6 provided in the floodgate 2, in the case of both sides of the door body 6 and reverse watertight water, the shape of the watertight rubber plate 9 is a Y-shaped cross section or the use of flat rubber back to back. Installed according to. However, in the above-mentioned 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 turned over. It is necessary to carry out inspection work to ensure that the lifting and lowering operations are reliable. When the mounting method is the reverse of the usual method using a P-shaped rubber section, the structure is effective only for reverse watertightness.

[0005] An object of the present invention is to provide a watertight rubber plate for improving the watertightness of a door of a floodgate and a floodgate using the same.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is directed to an annular portion having a circular cross section, a flat portion extending tangentially from a peripheral surface of the annular portion, and the annular portion and the flat portion. A projection is formed in a direction forming an acute angle with the flat plate portion, starting from an arc surface on the flat plate portion side divided by a diameter axis passing through a contact point with the flat plate portion.

According to a second aspect of the present invention, in the first aspect of the present invention, the annular portion and the protrusion are so contacted at two points of the annular portion and the tip of the projection that the opposed wall opposing the flat portion as a base surface. The size is matched.

The invention of claim 3 is characterized in that, in the invention of claim 1 or claim 2, the watertight rubber plate body is formed by extrusion molding.

According to a fourth aspect of the present invention, in the first or second aspect, the protrusions of the watertight rubber plate are formed by gradually changing the thickness and length in the height direction. I do.

A fifth aspect of the present invention is a water gate using a watertight rubber plate, wherein a watertight rubber plate having a substantially R-shaped cross section is provided on a door body provided on both side walls of the waterway and supported by a door stop, An arc portion of the rubber plate is brought into contact with the door stop, and a projection protruding from the arc portion of the watertight rubber plate is brought into contact with the door stop.

[0011] The invention according to claim 6 is a water gate using a watertight rubber plate, wherein doors are provided on both side walls of the water channel, rollers provided on both edges of the door body are supported by the door stop, Between the edge and the door stop, a flat portion of a water-tight rubber plate having a substantially R-shaped cross section was attached to the edge of the door body, and the arc and the projection of the water-tight rubber plate were brought into contact with the door stop. Features.

The invention according to claim 7 is a water gate using a watertight rubber plate, wherein doors are provided on both side walls of a water channel, and guide shoes provided on both side ends of a door body are slidably contacted with the door stop, A flat plate portion of a watertight rubber plate having a substantially R-shaped cross section is attached to the edge of the door body between the edge of the body and the door stop, and the arc portion and the projection of the watertight rubber plate are brought into contact with the door stop, A bearing member for protecting the watertight rubber plate is provided between the edge of the door body sandwiching the watertight rubber plate and the door stop.

[0013] The invention of claim 8 is the invention according to any one of claims 5 to 7, wherein the lower part of the facing surface of the door contacting the watertight rubber plate, or the lower surface of the facing surface. A gap filling metal member is provided at a lower portion of the door body.

[0014]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. As shown in FIG. 1 (a), a door 6 (one side is shown) provided on the floodgate 2 has rollers 8 at its ends, and is usually provided on the concrete wall 3 at the top, bottom, left and right. The door 6 is accommodated in a door stop 7 and supports the door 6. The water gate 2 raises and lowers the door body 6 to open and close the waterway 1. When the water body 1 is closed by lowering the door body 6, watertightness is maintained by a watertight rubber plate 9 provided at the edge of the door body 6. It is supposed to be.

As shown in FIG. 1B, the watertight rubber plate 9 that contacts the watertight wall 7a of the door stop 7 is formed in a substantially R-shaped cross section, and has a flat plate portion 9a, an arc portion (annular portion) 9b, It consists of a projection 9c. With only the watertight rubber plate 9, the circular arc portion 9b is equivalent to the aforementioned annular portion. The flat plate portion 9a of the watertight rubber plate 9 is fixed to the end flat surface of the door body 6, and the circular arc portion 9b comes into contact with the watertight wall (opposed wall) 7a of the door stop 7. The flat plate portion 9a and the projection 9c projecting at an acute angle come into contact with the watertight wall 7a and come into contact at two points. During this time, the watertight wall 7a is curved and separated. The watertight rubber plate 9 can be manufactured by extrusion, but when the shape of the projection 9c is to be deformed in the height direction, it can be press-formed by a metal mold.

In the above-mentioned water gate 2, the mounting method of the watertight rubber plate 9 is the same as the conventional method. In the case of reverse watertightness, the projection 9c of the watertight rubber plate 9 is pushed outward by water pressure, and the watertight wall 7a of the door stop 7 is provided. It comes into close contact with. Therefore, the watertightness of both surfaces is good due to the action of water pressure, and no turning-over phenomenon occurs, stable operation can be obtained, and reliability is improved.

As the watertight rubber plate 9, the shape in which the protrusion 9 c is attached to the P-type rubber is, as shown in FIG. 2A, a shape in which the protrusion 9 c is formed near the top of the circular arc portion 9 b, The projection 9c may be formed by projecting from the lower part of the arc portion 9b as shown in b). As shown in FIG. 3, the projection 9c is thin and long (length n1) near the water surface, and is near the bottom surface. 9c is made thicker and shorter (length n2), and the length and thickness of the protrusion 9c are appropriately adjusted to the assumed hydraulic pressure, and the contact line R is set at the same position in the lateral direction (the distance a from the contact point P of the arc portion 9b). At equal intervals). As a result, even if the water pressure near the water surface is small, the projection 9c is easily pressed and becomes watertight. Further, the distance a may be changed as the water depth increases. In this case, the contact between the projection 9c and the watertight wall 7a is restored by the vertical movement of the door body 6.

Further, as shown in FIGS. 4 (a) and 4 (b), a roller shift metal (gap filling metal) 10 is fixed to the bottom side surface of the door stop 7, and when the door body 6 is lowered, When the roller 8 is press-fitted, the door body 6 is prevented from swaying due to water pressure or flowing water, so that the watertightness of the watertight rubber plate 9 is also improved. As shown in FIGS. 5 (a) and 5 (b), in the floodgate 2 in which the door 6 is slid up and down, guide shoes 11 are provided at both ends of the door 6, and the watertight rubber plate 9 A supporting member 12 is provided in parallel. When the sluice gate 2 is closed, the watertight rubber plate 9 is pressed against the watertight wall 7a of the door stop 7, but the supporting member 12 is also sandwiched between them, and the watertight rubber plate 9 is crushed beyond the limit of the interval. Being not to be. On the opposite side of the door body 6 from the watertight rubber plate 9, a lower end of the door body 6 is provided with a wedge metal fitting (a gap filling metal) 13 a having a sharp lower end, and a door stop 7 corresponding to the wedge metal fitting 13 a. A wedge metal (gap filling metal) 13b whose upper end has an acute angle is provided at the lower part of the frame. The wedge metal parts 13a and 13b overlap with each other when the door body 6 descends in the same manner as the above-described roller-side metal piece 10 so as to prevent the door body 6 from swinging against water pressure and improve the watertightness of the watertight rubber plate 9. Has become.

[0019]

[Effect of the invention]

 As described above, in the invention of claim 1, since the projection is provided on the watertight rubber plate, the water pressure is reversed by attaching the watertight rubber plate of the present invention to the door installed on the floodgate as usual. When it hits, the protrusion comes into contact with the door stop and reverse watertightness can be maintained. In the invention according to claim 2, the annular portion and the projection of the watertight rubber plate come into contact with the door stop, so that the water pressure applied to the door body and the water pressure applied to the door body from the opposite direction can be reduced. , Can be kept watertight. In the invention according to the third aspect, since the watertight rubber plate is manufactured by extrusion molding, the length can be freely adjusted and can be adjusted to the size of the water gate. According to the present invention, the protrusions are thin and long near the water surface, and the protrusions are thick and short near the bottom surface to cope with the water pressure and improve the watertightness. According to the invention described in claim 5, the water gate of the water gate provided in the water channel improves the watertightness because the arc portion and the projection of the watertight rubber plate are brought into contact with the watertight wall. Further, since the mounting method is the same as the conventional method, the door body side has a general structure and the construction cost can be reduced. In addition, since the projections are not pressed against the watertight wall, they can be prevented from turning over and turning over. Furthermore, when both sides and reverse water pressure are applied, the arc is pressed against the watertight wall, and the projection is pressed against the watertight wall from the inside, and the watertightness is increased by the water pressure, and water can be stopped. Further, in the invention according to claim 6, the watertightness of the roller which raises and lowers the door body is improved by contacting the watertight wall on both sides of the water channel with the arc portion and the projection of the watertight rubber plate. The operation is ensured, and the opening and closing of the floodgate is ensured. In the invention according to claim 7, a watertight rubber plate and a supporting member are provided side by side with respect to the gate where the door body slides and moves up and down, and the watertight rubber plate is appropriately pressed, and the crushing by the supporting member is performed. Watertight when the gate is closed. In the invention according to the eighth aspect, since the gap filling metal is provided at the lower part of the door stop or the lower part of the door body, it is possible to prevent the door body from swaying when the water gate is closed, and to improve the water tightness.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing a sluice gate edge part (a) and a watertight rubber plate (b) used in the sluice gate part according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing modified examples (a) and (b) of the watertight rubber plate of FIG.

FIG. 3 is a perspective view of another embodiment of the watertight rubber plate of the sluice gate of FIG. 1;

FIG. 4 is a plan view (a) and a side view (b) of a modification of the floodgate of FIG. 1;
FIG.

FIG. 5 is a schematic diagram illustrating another modification of the floodgate of FIG. 1 with a plane (a) and a side (b).

FIG. 6 is a schematic view of a conventional floodgate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waterway 2 Water gate 3 Concrete wall 6 Door body 7 Door contact 7a Watertight wall (opposite wall) 8 Roller 9 Watertight rubber plate 9a Flat plate part 9b Arc part (annular part) 9c Projection 10 Roller fitting (gap filling metal) 13a, 13b Wedge hardware (gap filling hardware)

Claims (8)

[Utility model registration claims] 1. An annular portion having a circular cross section, a flat plate portion extending tangentially from a peripheral surface of the annular portion, and the flat plate divided into two by a diameter axis passing through a contact point between the annular portion and the flat plate portion. A watertight rubber plate, wherein a projection is formed in a direction forming an acute angle with the flat plate portion, starting from an arc surface on the side of the portion. 2. The size of the annular portion and the projection are adjusted so that the annular portion and the tip of the projection contact two opposing walls with the flat portion as a base surface. The watertight rubber plate as described. 3. The watertight rubber plate according to claim 1, wherein the watertight rubber plate body is formed by extrusion molding. 4. The protrusion of the watertight rubber plate is arranged in the height direction.
The watertight rubber plate according to claim 1, wherein the watertight rubber plate is formed by gradually changing the thickness and the length. 5. A water-tight rubber plate having a substantially R-shaped cross section is provided on a door body supported on a door stop provided on both side wall surfaces of a water channel, and an arc portion of the water-tight rubber plate is brought into contact with the door stop. A water gate, wherein a projection protruding from an arc portion of a watertight rubber plate is brought into contact with the door stop. 6. A door stop is provided on both side walls of the water channel, and rollers provided on both edges of the door body are supported by the door stop, and a substantially R-shaped cross section is provided between the edge of the door body and the door stop. A water gate, wherein a flat portion of the watertight rubber plate is attached to an edge of the door body, and an arc portion and a projection of the watertight rubber plate are brought into contact with a door stop. 7. A door stop is provided on both side wall surfaces of a water channel, and guide shoes provided on both side ends of the door body are slidably contacted with the door stop, and a cross section of approximately R is provided between an edge of the door body and the door stop. The flat part of the water-tight rubber plate is attached to the edge of the door body, the arc portion and the projection of the water-tight rubber plate are brought into contact with the door stop, and the edge and the door stop of the door body sandwiching the water-tight rubber plate. A sluice gate, wherein a supporting member for protecting the watertight rubber plate is provided therebetween. 8. A lower portion of a facing surface of the door contacting the watertight rubber plate, or a lower portion of a door body facing the lower portion of the facing surface.
The floodgate according to any one of claims 5 to 7, wherein a gap filling metal member is provided.