JPH0630892Y2 - Gate watertight equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a watertight device in a gate which has a door body of two or more stages and which is required to keep watertight between each stage.

[Conventional technology]

Generally, a two-stage gate is installed at the river mouth, and each door is moved up and down independently, and its span is about
It is as long as 40 to 50 m, and the water pressure on the upstream side of the river and the water pressure on the sea side may be almost the same or different, especially when the water pressure is different, the door body that receives large pressure bends and The watertight rubber between the doors does not follow the bending of the door and causes water leakage. As one means for solving this, for example, the one disclosed in Japanese Utility Model Publication No. 57-055395 is known.

As shown in FIG. 4, the means of the above publication will be outlined with reference to the reference numerals used in the publication.
The bracket 13 with the long hole 14 is projected on the
A support member that engages via 15 and stands upright in parallel with the upper door 1
Watertight rubber is fixed to both upper and lower ends of 12, and a U-shaped elastic watertight plate 1 is formed between the upper and lower watertight rubbers and the lower door 2
It was intervened with 7,17 '.

[Problems to be solved by the device]

It is clear that if the above-mentioned means is used, reliable watertightness can always be obtained under any water pressure condition. However, since the watertight plate is bent in a U-shape, it is possible for dust to flow inside. There is a drawback that things are likely to accumulate and the function is obstructed by dust, and because the bracket is attached to the outer skin of the door at a distance, and also a watertight plate is attached, it takes time and effort to attach it. It is disadvantageous for maintenance.

The present invention was developed with the object of solving the above drawbacks.

[Means for Solving the Problems]

In the watertight device according to the present invention, a mounting member having a groove with an open front is provided on the front surface of the lower door body facing the upper door body, and belt-shaped watertight rubber is fixed above and below the mounting member. In addition, the middle part of the upper and lower water-tight rubbers is elastically bent up and down, and the support plate is fixed between the tip ends of the bent upper and lower water-tight rubbers. Is slidably engaged with the groove of the mounting member.

〔Example〕

The present invention will be described in detail with reference to the watertight device in the two-stage gate shown in FIG. 3, as shown in FIG.
A mounting member 4 having a concave groove 3 having an open front surface is fixed to a skin facing the upper-stage door body 2 of the lower-stage door body 1 by welding means over the entire length in the span direction of the door body 1, Watertight rubbers 5 and 6 are fixed to the upper surface and the lower surface of the mounting member 4 by bolting, respectively. The watertight rubbers 5 and 6 are not formed by bending from the beginning but have a horizontal strip shape, and a base portion 5a thereof. , 6a is thick, intermediate portions 5b, 6b are thin, tip portions 5c, 6c are also thick, and leading portions 5d, 6d are formed in a pipe shape having a diameter larger than the thickness of the leading portions 5c, 6c.
Therefore, as shown in FIG. 1, the upper watertight rubber 5 is bent upward from the intermediate portion 5b, and the lower watertight rubber 6 is inserted at the intermediate portion 6b.
The support plate 7 which bends further downward and abuts both of the erected front end portions 5c, 6c is brought into contact with the elastic support plate 7 like a steel plate over the entire span thereof, and the support plate 7 is attached to the front end portions 5c. ， 6c
The watertight rubbers 5 and 6 are held in a bent state by the support plate 7, and are also fastened to the support plate 7 by the bolts. Are projected at intervals in the span direction. Further, on the front surface of the fastening portion with both tip portions 5c, 6c of the support plate 7,
Stoppers 9 and 10 are attached to prevent the tip portions 5d and 6d of the watertight rubbers 5 and 6 from being abnormally pressed against the upper door body 2.

Because of the above structure, when water flows down from the upstream side to the downstream side as shown by arrow 11 in FIG. 3, the water level on the upstream side is high and the water pressure on the downstream side is higher. It is a body which is strongly pressed against the body 2 to be watertight. On the contrary, when the water level on the downstream side is higher than that on the upstream side, the watertight rubber 6 on the lower side strongly presses the upper door 2 to be watertight.
Further, when there is no water level difference between the upstream side and the downstream side, the upper and lower watertight rubbers 5 and 6 maintain watertightness by the repulsive force of the bent intermediate portions 5b and 6b.

When the door body is bent by water pressure, the watertight rubbers 5, 6
It follows the repulsive force of the bent portion and keeps the watertight in the bent state.

[Effect of device]

The present invention has the above-mentioned structure, and since the attachment member is fixed to the skin of the door body and the member for attaching the watertightness is attached to the attachment member, the labor of attaching various members to the door body can be saved, It is easy to maintain. Further, since the upper and lower watertight rubbers that elastically bend are connected to each other by the support plate between the both ends, the watertight rubber can be surely held in a bent state, and moreover, the protrusions protruding from the support plate. Since the piece is slidably engaged with the groove of the mounting member, the watertight rubber is maintained in a supported state. Further, the followability with respect to the bending of the door body is satisfactorily obtained, and the water tight action with durability is obtained reliably.

[Brief description of drawings]

FIG. 1 is a sectional view showing a watertight device for a gate according to the present invention,
FIG. 2 is a sectional view showing a state in which a watertight rubber is attached,
FIG. 3 is a side view showing an example of a gate provided with the watertight device of the present invention, and FIG. 4 is a sectional view showing an example of a conventional watertight device. 1 ... Lower door, 2 ... Upper door, 3 ... Recessed groove, 4
...... Mounting members, 5, 6 ...... Watertight rubber, 7 ・ ・ ・ Support plate,
8 ... Projection piece, 9, 10 ... Stopper

Claims (1)

[Scope of utility model registration request] 1. A mounting member (4) having a concave groove (3) whose front surface is open is provided on a front surface of the lower door body (1) facing the upper door body (2) so as to project therefrom. Band-shaped watertight rubbers (5, 6) are fixed above and below (4), and the middle parts (5b, 6b) of the upper and lower watertight rubbers (5, 6) are elastically bent up and down. Yes, bent upper and lower watertight rubber (5,
The support plate (7) is fixed between the respective tip portions of 6), and the projecting piece (8) protruding from the support plate (7) is attached to the mounting member (4).
Watertight device for a gate, which is slidably engaged with the groove (3) of the gate.