JP3783861B2 - Ring gate device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ring gate device installed in a river or dam channel.
[0002]
[Prior art]
Conventionally, as a gate device for opening and closing a river or a dam waterway, a pull-up gate device, a lodging gate device, a rising sector gate device, and the like are known.
[0003]
The pull-up type gate device is switched to an open state or a closed state by moving a plate-like gate body in an upright state up and down by a lifting means such as a rope while guiding it to a door groove provided on the left and right columns. Is.
The overturning gate device is a device that supports the gate body at the bottom of the water channel so that it can rotate by supporting one end of the gate. When the gate body is placed so as to be parallel to the bottom of the water channel When opened to a predetermined angle with respect to the bottom, it is switched to the closed state.
In addition, the rising sector gate device spans the gate body so as to be perpendicular to the discs that are spaced apart from each other so as to form a pair, and these left and right discs are provided at the center position thereof. The gate body is switched between the open state and the closed state via the disk by rotating the support shaft around the center.
[0004]
[Problems to be solved by the invention]
Each of the conventional gate devices described above has the following problems.
That is, in the pull-up type gate device, when the gate is fully opened, the gate body must be lifted so as not to interfere with running water, and the right and left columns are raised upright, so that the civil engineering structure becomes large, resulting in an increase in civil engineering costs. Further, door grooves are formed on both sides of the water channel, and these door grooves cause a disturbance of the flow of water, which is not hydraulically preferable.
[0005]
Further, in the overturning gate device, a space for storing the gate main body when it is closed or for storing the drive unit for opening and closing the gate main body must be secured on the bottom surface of the water channel. Since the civil engineering shape of the bottom part is complicated, civil engineering costs increase. In addition, since the flowing water flows on the upper surface of the gate body that has been brought down to a substantially horizontal state in the open state, the upper surface of the gate body may be damaged by the flowing sand and driftwood.
[0006]
Further, in the rising sector gate device, the water pressure applied to the gate body when in the closed state acts on the support shaft supporting the disk via the disk, and a considerable load is applied to the support shaft. The structure around the support shaft is complicated, and the maintenance management around the support shaft is expensive.
[0007]
The present invention has been made in view of the above circumstances, and the object of the present invention is to reduce the construction cost and not to disturb the flow of water in the open state and to damage the gate body. Provided is a ring gate device that is less prone to fear and that is easy to maintain and maintain without being subjected to a load due to water pressure in a closed position.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the invention according to claim 1, a water channel configuration having a substantially rectangular cross section formed by left and right side walls arranged at intervals and a bottom portion connecting the lower portions of the left and right side walls. A ring gate device in which a ring gate body having left and right ring portions and an arcuate gate portion attached across the left and right ring portions is installed on the body, and on the inner surfaces of the left and right side walls A ring-shaped door groove is formed, and the ring portion of the ring gate body is housed in the door groove. At least one of the left and right side walls is rotationally driven to open and close the gate portion. A drive mechanism is disposed, and the ring portion is housed in a floating state in the door groove by supporting an inner peripheral surface thereof by a rotation support portion .
[0010]
The invention according to claim 2, in the ring gate device according to claim 2, the inner peripheral surface of the ring portion of places where the gate portion is attached is attached is pressure support member, the pressure supporting member is the Tomizo It is characterized in that it is supported in contact with the inner peripheral surface.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a ring gate device according to the present invention will be described with reference to the drawings.
1 to 7 show an embodiment of a ring gate device according to the present invention. FIG. 1 is an overall perspective view of a part of the ring gate device, and FIG. 2 is an enlarged perspective view of a part thereof.
[0012]
As shown in FIGS. 1 and 2, the ring gate device 1 shown here is installed in a waterway of a river or a dam, and the waterway structure 2 disposed in the waterway is connected to the waterway structure. A ring gate body 3 that opens and closes the two water channel portions 2a is installed.
[0013]
The water channel component 2 is a ceiling that connects left and right side walls 10A, 10B that are spaced apart from each other, a bottom 11 that connects the lower portions of the left and right side walls 10A, 10B, and an upper portion of the left and right side walls 10A, 10B. The section 12 is formed in a substantially rectangular cross section.
[0014]
The side walls 10A and 10B constituting the water channel portion 2a are formed by curving in an arc shape on the upstream side, and the bottom portion 11 is formed by rounding the upstream side and gradually lowering the downstream side toward the downstream. Yes.
Further, a door groove 14 having a rectangular cross section and an overall ring shape is formed on the inner surfaces of the side walls 10A and 10B. A ring portion 21 of the ring gate body 3 is accommodated in the door groove 14 so as to be flush with the side surface of the ring portion 21 so as not to protrude from the surfaces of the side walls 10A and 10B.
[0015]
The ring gate body 3 includes a left and right ring part 21 and an arcuate gate part 22 attached across the left and right ring parts 21.
As shown in FIG. 3, the ring portion 21 is a combination of, for example, a plurality of steel materials so as to have a rectangular cross section by appropriate joining means such as welding.
Moreover, the gate part 22 is formed by combining steel materials in the same manner as the ring part 21, and a reinforcing member 22 a is attached to an internal required portion as necessary. Further, a seal member 23 such as a rubber material is attached to the left and right side portions of the gate portion 22 so as to protrude outward (see FIG. 3), and the gate portion 22 is brought into contact with the side walls 10A and 10B. And the side walls 10A and 10B are kept liquid-tight.
[0016]
Further, a seal member 24 is attached to one end portion of the gate portion 22 so as to protrude outward, and this seal member 24 abuts on the upper surface of the bottom portion 11 of the water channel structure 2 when the gate portion 22 is in a closed state. As a result, liquid-tightness, which is a good blocking function of the water channel, is secured.
[0017]
One of the left and right side walls 10A and 10B, for example, the side wall 10A, is provided with a drive mechanism 30 that rotates and drives the ring portion 21 to open and close the gate portion 22 (see FIG. 2).
The drive mechanism 30 includes a large gear 31 provided on the outer periphery of the ring portion 21, a pinion 32 that meshes with the large gear 31, and a motor 33 that drives the pinion 32 to rotate forward and backward. Here, as shown in FIG. 3, the large gear 31 includes a plurality of pin members 35 in the circumferential direction between a ring portion side wall constituting member 21 a constituting the ring portion 21 and a steel plate 34 provided in parallel thereto. It is configured to be installed at regular intervals. Further, the pinion 32 and the motor 33 are provided at a position as high as possible in the water channel structure 2 so as not to be exposed to water.
[0018]
Further, as shown in FIGS. 6 and 4, a plurality of support members 36 that rotatably support the ring portion 21 are provided on the side walls 10 </ b> A and 10 </ b> B of the water channel structure 2 and facing the door groove 14 (for example, Here, two are provided per ring portion 21), and the central portion thereof is rotatably supported by a bracket 37. Then, the ring portion 21, by thus being support the upper inner peripheral surface of these supporting members 36 are housed in a floating state to Tomizo 14.
[0019]
Further, as shown in FIG. 3, a water pressure support member 38 is attached to the inner peripheral surface of the ring portion 21 where the gate portion 22 is attached, and the water pressure support member 38 is attached to the inner peripheral surface of the door groove 14. By abutting, the water pressure received by the gate portion 22 is transmitted to the side walls 10 </ b> A and 10 </ b> B via the ring portion 21 through the water pressure support member 38 and the door-end hardware 39. Here, as the hydraulic support member 38, for example, a roller, a shoe or the like is used.
[0020]
On the other hand, a metal door 39 is embedded in the inner peripheral surface of the door groove 14 of the side wall 10 </ b> A, 10 </ b> B of the water channel structure 2 and facing the water pressure support member 38, and is received from the water pressure support member 38. The inner peripheral surface of the door groove 14 is reinforced so that the load is distributed and transmitted to the water channel structure 2.
[0021]
In addition, as shown in FIG. 5, a plurality of guide hardwares 40 are provided at predetermined intervals along the circumferential direction of the door groove 14 at locations facing the inner peripheral surface of the ring portion 31 of the door groove 14. The ring portion 21 in the door groove 14 can be smoothly rotated. In FIG. 1, FIG. 6 and FIG. 7 , reference numeral 41 denotes an inspection passage provided in the upper part of the ceiling portion 12 of the water channel structure 2.
[0022]
Next, the operation of the ring gate device 1 configured as described above will be described.
FIG. 6 shows a case where the ring gate device 1 is in a fully closed state. That is, at this time, the seal member 24 provided at the lower end of the gate portion 22 of the ring gate body 3 is in contact with the bottom portion 11 of the water channel structure 2 so as to block the water channel portion 2a of the water channel structure 2a. .
[0023]
At this time, a load due to water pressure is applied to the gate portion 22 from the front, and this load is applied from the gate portion 22 to the left and right ring portions 21, the water pressure support portion 38 provided on the left and right ring portions 21, and the water pressure support portion. It is widely dispersed and transmitted to the waterway structure 2 through the door-to-door hardware 39 that faces 38 (see FIG. 3). Since the ring gate device 1 as a whole is widely dispersed and supported with respect to the load caused by the water pressure, it has a strong strength against the water pressure, and the water pressure acting on the gate portion 22 is a part of the device. It is possible to prevent a situation in which the battery is damaged by receiving a concentrated load.
[0024]
Thereafter, for example, when the water level of the dam to which the ring gate device 1 is attached has to rise and the water in the dam has to be discharged, the drive mechanism 30 is operated to open the gate portion 22.
That is, the motor 33 is rotated in an appropriate direction, and the pinion 32 is forcibly rotated. The rotation of the pinion 32 is transmitted to the large gear 31 engaged therewith, and the one ring portion 21 integrated with the large gear 31 is rotated. As the one ring portion 21 rotates, the gate portion 22 and the other ring portion 21 rotate integrally therewith. As a result, the ring gate device 1 is fully opened as shown in FIG. .
[0025]
When the ring gate body 3 composed of the left and right ring portions 21 and the gate portion 22 is rotated, the left and right ring portions 21 are supported by the support member 36 in a floating state in the door groove 14, and the ring portion Since the guide 21 is guided by the guide hardware 40, the frictional resistance is low and smooth rotation is ensured. Therefore, a relatively small driving force of the motor 33 is sufficient.
[0026]
Similarly, when the ring gate device 1 is in the open state or when the ring gate device 1 is in the open state from the closed state, the door groove 14 is closed by the ring portion 21 of the ring gate body 3, and The inner surfaces of the side walls 10A and 10B have almost no unevenness, and are flush with each other as if they were one member surface. Thus, since the inner surfaces of the side walls 10A and 10B are simply flat and flush with each other, the flow path resistance is extremely low, and the flow becomes excellent hydraulically and a smooth water flow is ensured.
[0027]
In addition, since the door groove 14 is closed by the ring portion 21 as described above, overflow water can be prevented from entering the inside of the door groove 14, and thereby, along the door groove 14. The large gear 31, the pinion 32, and the motor 33, which are the constituent members of the drive mechanism 30 that are provided, can be prevented from being directly exposed to running water, and the durability of the drive mechanism 30 can be improved. .
6 and 7, the symbol Wa indicates the design flood level, Wb indicates the surcharge water level, and Wc indicates the full water level.
[0028]
The above-described embodiment is merely an example of the present invention, and the design of the present invention can be appropriately changed as necessary.
For example, in the above-described embodiment, only one of the ring portions 21 is forcibly rotated by the drive mechanism to open and close the gate portion 22, but the present invention is not limited to this, and both the left and right ring portions are connected. You may make it forcibly rotate while synchronizing.
[0029]
【The invention's effect】
As described above, according to the present invention, the following excellent effects can be obtained.
Compared to a pull-up type gate device, since a large-scale civil engineering structure (peer) is not required, the cost of civil engineering can be reduced and the center of gravity can be reduced, so that the stability of the structure is also improved. Moreover, it may be judged that the scenery is good.
In addition, by accommodating the ring portion in the door groove, the inner surface of the side wall can be made flat with no unevenness, and a hydraulically favorable structure can be obtained. In addition, it is possible to prevent the drive mechanism that rotationally drives the ring portion from being directly exposed to running water, and the durability of these drive mechanisms can be improved.
In addition, as compared with the overturning gate device, it is not necessary to store a structure at the bottom of the flow path, so the civil engineering shape becomes simple. In addition, since the gate portion does not interfere with running water at the time of full opening, there is no possibility of being damaged by flowing sand, driftwood, etc., and maintenance and inspection of the gate portion can be performed even during running water.
In addition, as compared with the rising sector gate device, the hydraulic load is transmitted from the hydraulic support member to the water channel structure, so that the structure is mechanically and civilally simple, and maintenance management is facilitated.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional perspective view showing an overall configuration of a ring gate device according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a drive mechanism of the ring gate device according to the embodiment of the present invention.
FIG. 3 is a cross-sectional view showing a configuration of the gate portion and its periphery of the ring gate device according to the embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a structure of a rotation support portion of the ring gate device according to the embodiment of the present invention.
FIG. 5 is a cross-sectional view showing a configuration of a guide hardware of the ring gate device according to the embodiment of the present invention.
FIG. 6 is a cross-sectional view showing a fully closed state of the ring gate device according to the embodiment of the present invention.
FIG. 7 is a cross-sectional view showing a fully opened state of the ring gate device according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ring gate apparatus 2 Waterway structure 2a Waterway part 3 Ring gate main body 10A, 10B Side wall 11 Bottom part 12 Ceiling part 14 Door groove 21 Ring part 22 Gate part 23 Seal member 24 Partition member 30 Drive mechanism 31 Large gear 32 Pinion 33 Motor 38 Hydraulic support member 39 Hardware 40 per door Guide hardware

Claims (2)

A water channel structure having a substantially rectangular cross section formed by left and right side walls spaced apart from each other and a bottom part connecting the lower portions of the left and right side walls, and straddles the left and right ring parts and the left and right ring parts. A ring gate device in which a ring gate body provided with an arcuate gate portion to be attached is installed,
Ring-shaped door grooves are formed on the inner surfaces of the left and right side walls, respectively, and the ring portions of the ring gate body are housed in the door grooves, and the ring portion is rotated on at least one of the left and right side walls. A driving mechanism for driving to open and close the gate portion is disposed ;
The ring part is housed in a floating state in the door groove by supporting the inner peripheral surface of the ring part by a rotation support part . The ring gate device according to claim 1,
A ring gate characterized in that a water pressure support member is attached to the inner peripheral surface of the ring portion where the gate portion is attached, and the water pressure support member is supported by being in contact with the inner peripheral surface of the door groove. apparatus.

Images