JPH11158850A - Flash board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flash board capable of obtaining a secure sealing property for each flash board and excellent in durability in a flash board used in the state of being stacked in multiple stages. SOLUTION: A plurality of water shielding walls of a specified height are formed by inserting them into a receiving frame 3 installed on both the right and left side walls 2 of a water channel and stacking in vertical direction. In this case, a seal material 8 provided between the walls and the receiving frame 3 is installed at both right and left front end parts on the downstream side, and the seal material 8 comprises a hard body part 9 and a soft body part 10 projected from the hard the body part 9 to the receiving surface 3a of the receiving frame 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corner drop used for a waterway blocking device of a sewage treatment facility or the like.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a receiving frame 23 provided on both side walls 22 of a waterway 21 has an effective length of about 200 to 600 mm in order to block a waterway such as a sewage treatment plant. A plurality of corner cut-offs 24 are inserted, and these are piled up to constitute a channel blocking wall. In such a conventional corner drop 24, as shown in FIG. 7, in order to ensure watertightness,
Watertight rubber plates 25 (seal material) are attached to both sides of the corner drop 24 so as to seal with the receiving frame 23.

[0003]

However, when a conventional sealing structure using a rubber plate 25 is employed, a relatively hard material is used to ensure durability, but it is difficult to obtain sufficient watertightness. Can not. On the other hand, when a soft seal rubber is employed, the rubber is compressed by a large force due to water pressure, and the soft rubber is likely to be damaged. Therefore, the present invention
An object of the present invention is to provide a corner drop that is used by stacking a plurality of corner drops, in which a reliable watertightness can be obtained for each corner drop and also excellent in durability.

[0004]

According to the present invention, the following technical means are provided to achieve the above object. In other words, the present invention is a corner drop for forming a water impermeable wall of a required height by inserting a plurality of receiving frames provided on the left and right side walls of the water channel and stacking up and down, at the left and right ends of the downstream front. A sealing material interposed between the receiving frame and the receiving frame is attached, and the sealing material is formed of a hard body portion and a soft body portion that projects more toward the receiving surface of the receiving frame than the hard body portion. Features. According to such a configuration, while ensuring reliable watertightness by the soft body portion that can be easily deformed, when the soft body portion is deformed to some extent, the hard body portion contacts the receiving surface of the receiving frame to further deform the soft body portion. To prevent soft body breakage,
Durability is also ensured. The soft part and the hard part of the sealing material may be formed separately from different materials, or may be integrally formed from the same material. When forming a separate body,
It is preferable that the soft portion of the sealing material is made of soft rubber or soft resin foam from the viewpoint of ensuring watertightness. The hard portion can be made of a hard synthetic resin such as a hard polyurethane resin or a foam thereof, and various hard materials such as wood and metal can be used. When the soft part and the hard part are integrally molded, they are integrally molded with the same elastic material to form a solid hard part, while forming a space inside the soft part, so that the soft part can be easily formed. It is preferable to be configured to be capable of elastic deformation.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. The corner drop 1 according to the first embodiment of the present invention shown in FIGS. 1 to 3 is inserted into receiving frames 3 provided on the left and right side walls 2 of the waterway, so that a plurality of corner drops 1 are formed. By stacking, the required height of the canal is constructed.

The receiving frame 3 is provided in a vertical guide groove 4 formed on each of the left and right side walls 2 of the water channel. The receiving frame 3 in the illustrated example is made of a steel frame having a U-shaped cross section,
It is attached and fixed to the side wall 2 by fixing means (not shown) such as an anchor. In addition, the receiving frame may be constituted by a plate-like plate material attached to each of the inner surfaces of the guide grooves 4,
Further, it can be constituted by the guide groove 4 formed in the side wall 2.

The corner drop 1 is formed in a substantially rectangular parallelepiped shape that is long in the left-right direction, and a ridge 5 extending over the entire length in the left-right width direction projects upward, and another corner drop 1 is provided at the bottom. A concave groove 6 is formed over the entire length in the left-right width direction into which the ridge 5 is fitted. Various types such as natural wood, synthetic wood, synthetic resin and the like can be used as the corner drop 1, but it is preferable to use a corrosion-resistant plate material. As the corrosion-resistant plate material, for example, a foam in which a resin that becomes a hard foam is reinforced with long glass fibers (for example, trade name “Eslon Neo Lumber FFU” manufactured by Sekisui Chemical Co., Ltd.) can be used, Most preferably, a long glass fiber reinforced urethane resin foam is used.

As the resin to be used as the hard foam, for example, a thermosetting resin such as a hard urethane resin, a vinyl ester resin, a phenol resin, an unsaturated polyester resin or an epoxy resin is preferably used. In the foamed resin, inorganic fillers such as calcium carbonate, gypsum, talc, aluminum hydroxide, and clay, and lightweight aggregates such as shirasu balloons, pearlite, and glass balloons are used to improve compressive strength and reduce costs. May be added. As the fiber for reinforcing the resin, it is most recommended to use not only glass fiber but also inorganic fiber such as carbon fiber, metal fiber and ceramic fiber and organic fiber such as aromatic polyamide fiber. Fiber forms include yarn, cloth, roving,
A long fiber form such as a roving cloth and a cloth mat is suitable, but a short fiber such as a chip or a middle fiber can be used together if necessary.

As shown in FIG. 2, the width L of the inner surface of the receiving frame 2 is
The thickness of the angle drop 1 is set to be larger than the thickness d of the angle drop 1 so that the angle drop 1 can be easily dropped in a state where there is no water in the water channel. After the plurality of corner cuts 1 have been dropped, it is preferable that the uppermost corner drop 1 is pressed downward by an appropriate pushing means (not shown) to secure watertightness between the top and bottom of the corner cut 1. As such a pushing means, a weight such as lead or a clamp device can be employed.

On the upper surface of the corner drop 1, a sealing material 7 is provided over substantially the entire length in the left-right width direction in order to improve the watertightness between the upper and lower corner drops 1. In the illustrated example, a long rubber plate 7 is provided as a sealing material at both ends in the thickness direction of the upper surface of the corner drop 1, thereby further improving the watertightness.

At the left and right ends of the downstream front of the corner drop 1,
A seal member 8 is attached to the gap between the corner drop 1 and the receiving surface 3a of the receiving frame 3. This sealing material 8 is hard part 9
And a soft part 10 protruding from the hard part 9 in the thickness direction of the angle drop 1, so that the soft part 10 is closer to the receiving surface 3 a of the receiving frame 3 than the hard part 9. It is projected toward.
Further, it is preferable that both the hard portion 9 and the soft portion 10 of the sealing material 8 are formed to be continuous and continuous over the entire length in the vertical width direction of the corner drop. Although the watertightness of the soft portion 10 can be ensured by preventing deformation of the soft portion 10, the hard portion 9 can be provided intermittently at a plurality of locations in the vertical direction.

The soft portion 10 and the hard portion 9 are formed separately from each other. It is preferable that the soft portion 10 is formed of a soft rubber or a soft resin foam, and the hard portion 9 is formed of an incompressible hard material. It is formed by material. For example, the hard portion 9 is preferably formed of a material having a small friction coefficient and excellent in abrasion resistance, such as polyamide, ultra high molecular weight polyethylene, Teflon, and steel, but may be formed of hard rubber. The soft body part 10 and the hard body part 9 are respectively formed in a vertically long rectangular column shape or a plate shape, and are arranged adjacently on the left and right. Note that a slight gap may be formed between the hard part 9 and the soft part 10. The soft portion 10 is disposed outside the hard portion 9 in the left-right width direction. In the illustrated example, the soft portion 10 is disposed along the left and right side edges of the corner drop 1.

According to the corner drop 1 according to the present embodiment, the corner drop 1 is pressed to the downstream side by the water pressure while maintaining the reliable watertightness by the soft body 10 made of soft rubber, and the soft body 10 Is deformed in the thickness direction of the angle drop 1, as shown in FIG. 3, the hard portion 9 abuts on the receiving surface 3a of the receiving frame 3 to prevent further deformation of the soft portion 10 in the thickness direction. Although an external force acts on the soft portion 10 inwardly to the left and right due to the water pressure, the deformation of the soft portion 10 to the left and right inward is prevented by the hard portion 9, so that the watertight action of the soft portion 10 is ensured. be able to.

FIG. 4 shows a corner drop 1 according to a second embodiment of the present invention. The difference from the first embodiment is that the hard portion 9 has a thin portion on the outside in the left-right width direction. 9 a and an inner thick portion 9 b, which is formed continuously over the entire length in the vertical direction, and is formed separately from the hard portion 9.
However, it is attached to the surface of the thin portion 9a of the hard portion 9, and the other configuration, operation, and effect are the same, and thus detailed description is omitted.

FIG. 5 shows a corner drop 1 according to a third embodiment of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted. In addition, different configurations, functions and effects will be described. In the corner drop 1 of the present embodiment, the soft portion 10 and the hard portion 9 of the sealing material 8 are integrally formed of the same elastic material. The hard portion 9 is formed solid, while a space (hole) is formed inside the soft portion 9 over the entire length in the vertical direction, and is configured to be easily elastically deformable. The sealing material 8 can be easily and inexpensively manufactured by extruding hard rubber, for example. In the present embodiment,
The hard body part 9 is disposed along the left and right side edges of the corner drop 1, and the soft body part 10 is arranged inside the hard body part 9 in the left-right direction.

The present invention is not limited to the above-described embodiment, and the design can be changed as appropriate.

[0017]

According to the present invention, a plurality of receiving frames provided on the left and right side walls of the water channel are inserted and stacked up and down to form a water impermeable wall having a required height. A sealing material interposed between the receiving frame and each of the left and right ends is attached, and the sealing material is formed of a hard body portion and a soft body portion that projects more toward the receiving surface of the receiving frame than the hard body portion. The soft part that can be easily deformed ensures reliable watertightness, but when the soft part deforms to some extent, the hard part contacts the receiving surface of the receiving frame and prevents further deformation of the soft part However, this can prevent the soft body from being damaged, and can improve durability. In addition, if the soft portion of the sealing material is made of a soft rubber or a soft resin foam, it is possible to ensure reliable watertightness. Also, the soft body and the hard body are integrally formed of the same material to form the hard body solidly, while forming a space inside the soft body so that the soft body can be easily elastically deformed. Then, the sealing material exhibiting the above-mentioned effects can be manufactured at low cost by extrusion molding, and the number of working steps for attaching the sealing material to the corner drop can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a corner drop according to a first embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part showing a state where the same angle drop is inserted into a receiving frame.

FIG. 3 is an enlarged cross-sectional view of a main part showing a state in which water pressure acts on the angle drop.

FIG. 4 is an enlarged cross-sectional view of a main part of a corner drop according to a second embodiment of the present invention.

FIG. 5 is an enlarged cross-sectional view of a main part of a corner drop according to a third embodiment of the present invention.

FIG. 6 is a front view showing a water blocking structure of a water channel formed by a plurality of corner cuts.

7A and 7B show a conventional angle drop, FIG. 7A is a plan view, and FIG.
Is a front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Corner drop 2 Side wall of waterway 3 Receiving frame 3a Receiving surface 8 Sealing material 9 Hard part 10 Soft part

Claims (3)

[Claims] Claims 1. In a corner drop for inserting a plurality of receiving frames provided on both right and left side walls of a water channel and stacking up and down to form a water impermeable wall of a required height, A sealing material interposed between the receiving frame and the receiving frame is attached, and the sealing material includes a hard body portion and a soft body portion projecting toward the receiving surface of the receiving frame from the hard body portion. To drop corners. 2. The corner drop according to claim 1, wherein the soft portion of the sealing material is made of a soft rubber or a soft resin foam. 3. A hard member and a soft member of the sealing material are integrally formed of the same elastic material, the hard member is formed solid, and the soft member has a space formed therein. The corner drop according to claim 1.