JP2003253912A - Water-level follow-up type rise-fall gate device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem in operational certainty or the like in a conventional water-level follow-up type rise-fall gate device. <P>SOLUTION: The water-level follow-up type rise-fall gate device has a rise-fall gate housing ditch 1 formed on the ground side in an area having a low altitude or the ground side in the vicinity of a building entrance, a rise-fall gate 2, which is installed rotatably to the ground side through a hinge means 3 so as to follow up a water level on the rise-fall gate housing ditch 1 side and rise and fall, is rotated and erected with the elevation of the water level on the housing ditch 1 side from a fallen and lied-down state housed in the housing ditch 1 and cuts off the flow of water into the area having the low altitude or the building, and a headrace-drainage canal 5 communicating with the housing ditch 1 from a place lower than the housing ditch 1. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water level follow-up type undulating gate device which rotates and stands up as the water level rises to block the flow of water into a low altitude area or a building.

[0002]

2. Description of the Related Art Conventionally, Japanese Unexamined Patent Publication No. 2001-214425 discloses a water level follow-up type undulating gate device which cuts off the flow of water into a building by means of an undulating gate which rotates and stands up as the water level rises. . As shown in FIG. 7, the undulation gate storage groove 103 formed on the floor 102 (ground side) in front of the underground entrance 101 of the building and the water level on the undulation gate storage groove 103 side undulate. Is rotatably attached via the hinge means 104, and is rotatably erected by buoyancy and water pressure as the water level on the side of the undulating gate storage groove 103 rises from the fallen state of being housed in the undulating gate storage groove 103 so that the building underground And an undulating gate 105 that blocks the flow of water to and from. The undulating gate 105 is provided with the side portion 106 in contact with the sliding plate 107.
Slides on the sliding plate 107 and rises and falls. Reference numeral 108 denotes a float chamber having a lock device (not shown) for engaging and locking the undulating gate 105. When the water level in the float chamber 108 reaches a predetermined water level, the engagement lock of the undulating gate 105 is released by the lock device, which allows the undulating operation of the undulating gate 105 to be carried out upright. It is possible to cut off the flow of water.

[0003]

In the case of the above prior art,
Since water flows into the undulating gate storage groove 103 only from the upward direction flowing on the floor surface, the undulating gate storage groove 103
It takes time for water to collect inside and the undulating gate 105
Rotation start is delayed. Therefore, in the case of sudden water increase,
A considerable amount of water may flow into the basement of the building. For example, if water suddenly rushes in a state where water is not accumulated in the undulating gate storage groove 103 and the lock is not released, the buoyancy of the undulating gate 105 loses the pressure of the water and the underground of the building There is a possibility that the undulating gate 105 will be in an upright state after a considerable amount of water has flowed into it. That is, there is a problem in the reliability of the water cutoff operation at the time of water discharge. In addition, for example, even during normal rainfall, the water level in the float chamber 108 immediately reaches a predetermined water level, the lock device is unlocked, and the undulating gate 105 floats halfway. there is a possibility.
That is, malfunction is likely to occur. In this case, the undulating gate 1
It is also possible to push down 05 to lock it, but at this time, the water that has accumulated in the undulating gate storage groove 103 overflows onto the floor surface, so this overflowing water stains clothes, and The treatment of this overflowing water is troublesome. Furthermore, in this case, the water accumulated in the undulating gate storage groove 103 does not completely overflow, and the water does not easily draw even after the water has subsided. That is,
The drainage of water in the undulating gate storage groove 103 is poor. Since the water is poorly drained as described above, water remains in the float chamber 108 for a long time, and the mechanism of the lock device in the float chamber 108 is likely to be rusted and malfunction. In addition, it is considered that it will take a very long time to automatically lock the undulating gate 105 and return to the laid state because the water does not easily drain even after the water has subsided. It seems that the undulation gate 105 is pushed down and locked to return to the laid state. That is, there is no certainty in the automatic return operation to the normal time. As described above, Japanese Patent Laid-Open No. 2001-214425
The conventional water level follow-up type undulating gate device disclosed in Japanese Patent Publication has a problem in operational reliability.

[0004]

SUMMARY OF THE INVENTION A water level following type undulating gate device of the present invention comprises an undulating gate storage groove formed on the ground side at the water's edge in the area of low altitude or on the ground side near a building entrance and exit, and this undulating gate. It is rotatably attached to the ground side via hinge means so as to undulate following the water level on the storage groove side, and is stored in the undulation gate storage groove from the fall state to the water level on the undulation gate storage groove side as the water level rises. An undulating gate that swivels to stand up and blocks the flow of water into a low-altitude area or the inside of a building, and a drainage channel that communicates with the undulating gate storage groove from a position lower than the undulating gate storage groove. Since this water guiding / draining path is provided, the inflow of water into the undulating gate storage groove is accelerated, the upright rotation operation of the undulating gate is started early, and the water drainage in the undulating gate storage groove is accelerated. The falling motion of the undulating gate will also be smooth. Further, it is located above the undulating gate so as to operate in conjunction with the undulating operation of the undulating gate, and when the undulating gate stands up, it extends continuously above the undulating gate at the upper end side of the undulating gate. An upper turning gate is provided, and water is shut off by the undulating gate and the upper turning gate. This makes it possible to reduce the size of the undulating gate and eliminate the buoyancy of the undulating gate. . Further, buoyancy assisting means for assisting the buoyancy of the undulating gate that starts erection operation by buoyancy by the water flowing into the undulating gate storage groove is provided, thereby eliminating the buoyancy shortage of the undulating gate.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment FIG. 1 is a diagram for explaining the operation of a water level following type undulating gate device according to a first embodiment, and FIG. 2 is a schematic perspective view of the water level following type undulating gate device in a collapsed state. In the first embodiment,
An example of a water level following type undulating gate device provided at the water's edge in a low altitude area such as along the sea or along a river will be described. In each figure, reference numeral 1 denotes an undulating gate storage groove made of concrete, for example, which is formed on the ground side at the water's edge in a low altitude area.
2 is an undulating gate. The undulating gate 2 is rotatably attached via a hinge means 3 so as to undulate following the water level on the undulating gate storage groove 1 side. For example, the undulating gate storage groove 1 is formed so as to extend along the shoreline by installing a concrete formwork and placing concrete. A plurality of undulating gates 2, 2, ... Are rotatably attached to the undulating gate storage groove 1 on the side opposite to the sea or river side via, for example, rubber hinge means 3. The adjacent undulating gates 2, 2 ... Are connected to each other by, for example, a bolt and nut via a rubber connecting member 4. Further, the water drainage channel 5 is provided by a pipe that communicates with the undulating gate storage groove 1 from the sea or the river which is lower than the undulating gate storage groove 1. The undulating gate 2 is composed of, for example, an undulating wall 2a made of plastic, a thin iron plate, an aluminum plate or the like, and a buoyant body 2b provided on the lower surface side of the undulating wall 2a (FIG. 1).
(See (a)). As the buoyant body 2b, for example, a hollow box-shaped member made of a thin steel plate or an FRP (fiber reinforced plastic) member is used. When the FRP is formed, it may have a solid structure because the FRP has a small specific gravity. The undulating gate 2 is manufactured so that the specific gravity is much less than 1.

Next, the operation will be described. As shown in FIG. 1A, the undulating gate 2 is normally laid down and is housed in the undulating gate housing groove 1. Then, when the water level increases during an abnormal time (when water is flowing out), as shown in FIG. 1B, the water W first flows into the undulating gate storage groove 1 via the water guiding / draining path 5 to cause the undulating gate 2 to move. It floats with buoyancy. Further, as the water level increases, the undulating gate 2 stands up as shown in FIG. 1 (c) due to buoyancy and water pressure. As a result, at the time of flooding, it is possible to block the flow of the water W to a low altitude area such as along the sea or along a river, and prevent water damage. In addition, in the case of the first embodiment, in order to regulate the further rotation of the undulating gate 2 at a stage slightly before the upright state, the lanyard 6 is used.
Is provided. Further, when the water level subsides and the water level falls, the water in the undulating gate storage groove 1 is returned (drained) to the sea or river through the drainage channel 5, so the undulating gate 2 automatically moves. Return to the state of 1 (a). According to the water level following type undulating gate device according to the first embodiment,
Water quickly flows into the undulation gate storage groove 1 through the water guiding / draining path 5 to start the upright rotation operation of the undulating gate 2 early, and the water level quickly drops due to the drainage through the water guiding / draining path 5. The undulating gate 2 automatically and smoothly returns to the laid state.

That is, according to the first embodiment, the drainage channel 5
Since the rising and lowering gate 2 can be started early, the water cutoff operation at the time of flooding is excellent, and the drainage of the water in the rising and falling gate storage groove 1 is excellent. As a result, a quick and smooth return operation of the undulating gate 2 to the collapsed state can be realized without human intervention.

Embodiment 2 FIG. 3 (a) is a plan view of a water level following type undulating gate device according to a second embodiment, FIG. 3 (b) is a sectional view, and FIG. 4 is a schematic perspective view of a water level following undulating gate device. Is. In the second embodiment, a water level following type undulating gate device provided near a building entrance will be described as an example. It should be noted that the same functional portions as those in FIG. 1 are denoted by the same reference numerals and detailed description thereof will be omitted. As shown in FIGS. 3 and 4, an undulating gate storage groove 1 is formed on the floor S (ground side) near the underground entrance 20 of the building. Then, as in the first embodiment, the undulating gate 2 and the drainage channel 5
Is provided. The lower surface 21 on one end side of the undulating gate 2 on the underground entrance / exit 20 side is connected to the bottom side of the undulating gate storage groove 1 on the underground entrance / exit side, for example, by a rubber hinge means 30, whereby the undulating gate 2 rotates. It is free.
The area of the undulating wall 2a of the undulating gate 2 is equal to the entrance 20
It is possible to close the entrance 20 with the undulating wall 2a (see FIG. 4). An annular rubber seal 7 is provided on the front surface around the entrance / exit 20 (the front surface 22a of the passage side wall 22), and the front surface around the entrance / exit 20 and the top surface 2f of the undulation wall 2a when the undulation wall 2a stands upright. I try to secure the adhesion with. Further, in the second embodiment, the water guide / drainage channel 5 is connected to a sewer pipe, a gutter, or the like near the undulating gate storage groove 1. The operation of the water level follow-up type undulating gate device according to the second embodiment is basically the same as that of the first embodiment. However, in the case of the water level follow-up type undulating gate device, since the rotation of the undulating gate 2 after the upright state is restricted by the front surface 22a of the passage side wall 22, the tow belt 6 is unnecessary.

In the case of the second embodiment, Japanese Patent Laid-Open No. 2001-21
It is possible to solve all the problems of the conventional water level following type undulating gate device disclosed in Japanese Patent No. 4425. That is, since the drainage channel 5 is provided, the upright rotation operation of the uplifting gate 2 can be started at an early stage, so that the water shutoff operation at the time of water discharge is excellent in reliability, and malfunctions as in the past are also possible. Disappear.
Further, the drainage of water in the undulating gate storage groove 1 is improved, and a quick and smooth return operation of the undulating gate 2 to the laid state can be realized without manual intervention. Further, the conventional lock mechanism is not necessary, and the device has few failures.

In the prior art of Japanese Patent Laid-Open No. 2001-214425, since the side portion 106 of the undulating gate 105 is slid by the sliding plate 107, the undulating gate 105 can be smoothly rotated by friction. Although hindered, in the second embodiment, the side portion of the undulating gate 2 is not slid to ensure smooth rotation of the undulating gate 2. However,
Also in the present invention, the undulating gate 2 is provided with the passage side walls 22, 22.
In the same manner as in the conventional technique disclosed in Japanese Patent Laid-Open No. 2001-214425, the side portion of the undulating gate 2 is disposed between the passage side walls 22.
It may be slid through.

Third Embodiment If the size of the undulating gate 2 is increased, the buoyancy becomes insufficient. In such a case, as shown in FIG. 5, the height of the undulating gate 2 is shortened. The undulating gate 12 may be reduced in size, and an upper turning gate 13 may be provided which hangs down from above and turns in conjunction with the turning upright of the undulating gate 12. That is, the undulating gate 12 operates above the undulating gate 12 in conjunction with the undulating operation of the undulating gate 12, and when the undulating gate 12 stands upright, the undulating gate 12 is continuously connected to the upper end of the undulating gate 12.
Upper turning gate 13 positioned so as to extend above
Is provided, and the water W is blocked by the undulating gate 12 and the upper turning gate 13. That is, the ends of the rope 15 are connected to the undulating gate 12 and the upper side turning gate 13 via the pulleys 14, respectively, and the undulating operations of the undulating gate 12 and the upper side turning gate 13 are interlocked. At the time of standing, the state changes from FIG. 5 (a) to FIG. 5 (b). In FIG. 5, 13a is a hinge means of the upper turning gate 13. Further, the pulley 14 may be arranged in a recess provided on the ceiling side. In the third embodiment, since the size of the undulating gate can be reduced, it is possible to solve the buoyancy shortage of the undulating gate.
It is possible to further speed up the start of the standing rotation operation of the undulating gate. Further, since the upper side turning gate 13 is provided, it becomes possible to shut off even at a flood water level which is equal to or higher than that when a large undulating gate is used.
It should be noted that when the undulating gate 12 is in the upright state, the upper side turning gate 13 is located outside so that the upper end side of the undulating gate 12 can be suppressed.
The operation timing of may be adjusted.

Embodiment 4 Further, as shown in FIG.
May be connected to the undulating gate 2 and the counterweight 16 as a buoyancy assisting means may be hung on the other end of the rope 15 so that the weight of the counterweight 16 compensates for the insufficient buoyancy of the undulating gate 2. A spring such as a tension spring, a compression spring, or a coil spring may be used as the buoyancy assisting means. In the fourth embodiment, the insufficient buoyancy of the undulating gate 2 can be solved, and the start of the standing rotation operation of the undulating gate 2 can be further accelerated.

Although FIGS. 5 and 6 show an example in which the structure is applied to the underground entrance of a building, it is rather a water level provided at the waterside in a low altitude area such as along the sea or along a river as in the first embodiment. Since the swelling gate of the follow-up type undulating gate device is larger, the third and fourth embodiments are more effective when applied to the water level follow-up undulating gate device of the first embodiment. In this case, a pillar is set up separately, and the rotation range of the undulating gate is restricted to the upright state by this pillar, and if the pulley is equipped with a horizontal bar etc. Good. Further, in this case, when the rotation of the undulating gate 12 having a reduced height is restricted by the tow belt 6 before the upright state as shown in FIG. 1C,
The upper turning gate 13 may be operated so as to be continuous with the upper end of the undulating gate 12 in this state, or to suppress the upper end side.

[0014]

According to the first aspect of the present invention, since the drainage channel is provided, it is possible to start the upright rotation operation of the undulating gate at an early stage, and the undulating operation of the undulating gate can be performed without manual intervention. It is possible to obtain a water level follow-up type undulating gate device that can be smoothly operated and has excellent operational reliability. According to the second aspect, the size of the undulating gate can be reduced, the buoyancy of the undulating gate can be eliminated, and the standing rotation operation of the undulating gate can be started earlier. Further, since the upper side turning gate is provided, it is possible to shut off even at a flood water level equal to or higher than that when a large undulating gate is used. According to the third aspect, the buoyancy assisting means can eliminate the buoyancy shortage of the undulating gate, and can further accelerate the start of the upright rotation operation of the undulating gate.

[Brief description of drawings]

FIG. 1 is an operation explanatory diagram of a water level follow-up type undulating gate device according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view showing a water level follow-up type undulating gate device according to the first embodiment.

FIG. 3 is a diagram showing a water level following type undulating gate device according to a second embodiment.

FIG. 4 is a perspective view of a water level following type undulating gate device according to a second embodiment.

FIG. 5 is an operation explanatory diagram of a water level following type undulating gate device according to a third embodiment.

FIG. 6 is a view showing a water level following type undulating gate device according to a fourth embodiment.

FIG. 7 is a view showing an example of a conventional water level following type undulating gate device.

[Explanation of reference numerals] 1 undulation gate storage groove, 2, 12 undulation gate, 3, 3
0 hinge means, 5 drainage channel, 13 upper side turning gate, 16 counterweight (buoyancy assisting means).

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Daijiro Tanabe             No. 2 Tsukutocho, Shinjuku-ku, Tokyo Co., Ltd.             Kumagai Gumi Tokyo Head Office F-term (reference) 2D019 CA01                 2E039 AC04

Claims (3)

[Claims] 1. An undulating gate storage groove formed on the ground side at the water's edge in the area of low altitude or near the building entrance / exit, and the ground side so as to undulate following the water level on the undulating gate storage groove side. , Which is rotatably attached via hinge means, is stored in the undulating gate storage groove from a fallen state to a standing position as the water level on the side of the undulating gate storage groove rises and rises to an area or building with a low altitude. A water level follow-up type undulating gate device, comprising: an undulating gate that blocks the flow of the undulating gate; and a water guiding / drainage channel that communicates with the undulating gate storage groove from a position lower than the undulating gate storage groove. 2. An upper part of the undulating gate, which is interlocked with an undulating motion of the undulating gate, so that when the undulating gate stands up, it extends continuously above the upper and lower side of the undulating gate. Providing an upper turning gate to be positioned,
The water level follow-up type undulating gate device according to claim 1, wherein the undulating gate and the upper rotating gate are configured to block water. 3. A water level follow-up type undulation according to claim 1, further comprising buoyancy assisting means for assisting buoyancy of the undulation gate, which starts erection operation by buoyancy by water flowing into the undulation gate storage groove. Gate device.