CN1004332B - Flexible thin film elevating and falling weir - Google Patents

Abstract

The present invention relates to a flexible film elevating and falling weir fixed on the top of an underwater concrete structure. A discharge pipe is provided with an opening positioned at the lowest point in cladding in order to make the elevating and falling weir completely fall to make the water smoothly flow.

Description

Flexible thin film elevating and falling weir

The present invention relates to the elevating and falling weir made by fexible film, especially have the weir of the inflatable that has improved tapping equipment.

The elevating and falling weir that fexible film is made is fixed on the top of the concrete structure in the waters, by making it to rise, perhaps makes it to descend by venting to the elevating and falling weir inflation, thus controlled water flow.

The basic structure of inflatable flexible thin film elevating and falling weir comprises the covering of rubber fabric or similar articles, and this covering is fixed to the top of concrete structure.The pressure medium of air and/or water one class is charged into covering, make elevating and falling weir be raised to a permanent position, pressure medium is emitted from covering, makes elevating and falling weir be contracted to folded position (for example, uncensored Japan Patent Nos.11702/1965 and 2371/1969).

With reference to Fig. 1 (prior art), the high dykes and dams of making when inflatable flexible thin film elevating and falling weir and concrete (1) can play the effect of increasing dykes and dams when the top joins.But water (4) is accumulated to the bottom of covering (2), because the covering bottom is positioned at below the height that fills/put mouthful (3).Filling/put mouthful (3) is used for filling/release body to covering.By filling/put pipe (5), the airborne water vapour that sprays into covering (2) is by the water cooling in the waters.Vapor condensation Cheng Shui (4).As a result, after the covering venting, water still remains in the covering.The flexible elevating and falling weir of residual water overslaugh is retracted to the folded position that is positioned at the concrete structure top fully.And after the covering venting, overslaugh water lands smoothly from the top of concrete structure.

In this traditional flexible thin film elevating and falling weir, be that covering is on the bottom of folded position because the filling/put of water mouthful (3) is positioned at the minimum altitude of covering (2), residual water (4) can not be given off fully.

In Japanese kokai publication sho &lt;math><msup><mi></mi><msub><mi>60-23514</mi></msup><mi>60-23514</mi></msub></math> A kind of flexible thin film elevating and falling weir is arranged in number, still have above-mentioned shortcoming when it is used in the curved dam top surface.

At the shortcoming of above-mentioned prior art, task of the present invention provides a kind of improved flexible thin film elevating and falling weir.The invention provides a flexible thin film elevating and falling weir, it has a discharging mouth of pipe, and this mouth of pipe is positioned at the bottommost of the covering (also being " bag " in the present technique field) of rubber fabric, and is fixed on the concrete structure top, so that can shorten drain time, help to prevent pipe choking.

Other purpose of the present invention, feature and advantage will be embodied in below in conjunction with in the accompanying drawing description of this invention.Identical label is represented same parts or like in the accompanying drawing.

Fig. 1 (prior art) is the cross section of traditional elevating and falling weir, and this elevating and falling weir is fixed on the concrete structure.Wherein, Fig. 1 (a) represents setting (inflation) position of this elevating and falling weir, and Fig. 1 (b) represents the folded position of this elevating and falling weir.

Fig. 2 and Fig. 3 represent elevating and falling weir of the present invention, and Fig. 2 is the cross section of an embodiment, wherein delivery pipe with fill/put the pipe be connected.Fig. 3 (a) represents delivery pipe and fills/put the embodiment that the pipe branch is arranged.Fig. 3 (b) flows horizontal cross sectional view along the river, and elevating and falling weir is positioned on the river.

Fig. 4 (a) reaches the emission effect of each delivery pipe of two embodiment of the present invention that (b) explain.

The characteristic of delivery pipe of the present invention (6) is described in conjunction with Fig. 2 and Fig. 3, and the opening (7) of delivery pipe (6) is positioned at the lowest part of covering.As shown in Figures 2 and 3, delivery pipe (6) is located to be connected with covering (2) at opening (7).

As shown in Figure 2, delivery pipe (6) with fill/put pipe (5) and be connected.Forming the pipe fitting quantity and the size of delivery pipe (6) decides according to the width in river.

Fill/put link position between pipe (5) and the delivery pipe (6) and be lower than opening (7) position on the delivery pipe (6), so that water (4) is discharged from covering (2) smoothly.

The another kind of arrangement of Fig. 3 (a) expression pipe, delivery pipe (6) is with to fill/put pipe (5) separate.When needing, the water in the covering (2) is discharged by delivery pipe (6).Embodiment shown in Figure 3 comprises operation room (10), and this operation room is connected with pipe (6) with pipe (5).

As mentioned above, except that the opening that fills/put pipe (5) (3), it is positioned at the lowest part of covering (2) also to be provided with opening (7).Therefore, water (4) can not remain in the covering (2), can discharge smoothly by the opening (7) of pipe (6).

In one embodiment, fill/put pipe (5) and also can be used as delivery pipe (6), when the opening that fills/put pipe (5) was positioned at the lowest part of covering (2), its emission effect may reduce.The diameter that fills/put pipe (5) depends on filling/putting the time of elevating and falling weir.In general, the caliber scope is 50～150 millimeters.

When filling/putting pipe (5) and have major diameter D, need big flange be set for opening, shown in Fig. 4 (a), the lowest part that it makes covering (2) increases to the distance A of opening.Otherwise, when fill/put pipe just like shown in Fig. 4 (b) than minor diameter D the time, littler than the distance A shown in Fig. 4 (a) from the lowest part of covering (2) to opening apart from B.So, the emission effect of the embodiment shown in Fig. 4 (b) good than shown in Fig. 4 (a).

So the present invention can comprise a diameter less than the delivery pipe (6) that fills/put pipe (5) diameter, and be provided with opening at the covering lowest part.

According to the present invention, delivery pipe (6) is arranged on bottommost, thereby water can be discharged from covering smoothly.Thereby can make the elevating and falling weir inflation time rise fully and shrink fully when exitting.

According to aforementioned and accompanying drawing, other embodiments of the invention and improvement will be conspicuous for ordinary skill.

Claims (5)

1, a kind of being contained on the curved dam top surface is that the flexible thin film elevating and falling weir of pressure medium comprises with gas:

Can be fixed in the flexible covering at the concrete structure arc top of building in the water;

Fluid fills/puts pipe, and the one end has an opening, communicates with flexible covering inside, so that can both charge into or emission gases when this flexibility covering is in the position of gassy or vent gas;

Feature of the present invention is:

Have a delivery pipe at least, the opening of its entrance point is positioned at the extreme lower position of flexible covering inside, and its port of export fills/puts pipe with described fluid on than the low position of the opening of above-mentioned delivery pipe entrance point and links to each other.

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