JP4092024B2 - Gate opening and closing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a gate-off equipment for opening and closing the wastewater path and intake passage.
[0002]
[Prior art]
FIG. 4 is a sectional view showing a conventional gate opening / closing device (conventional example 1). Conventionally, gate opening and closing devices for opening and closing river sluice gates and water gates are known. A gate opening / closing device 101 shown in FIG. 4 includes a gate pole 103, an opening / closing device 104 installed on the gate pillar 103, a rack 105 raised and lowered by the opening / closing device 104, and a roller gate 110 connected to the rack 105. I have. The switch 104 lifts the roller gate 110 by moving the rack 105 up and down. The roller gate 110 slides in the vertical direction along the door groove 106 of the gate pillar 103 to open and close the water channel 102. Such a gate opening / closing device 101 discharges river water to prevent inflow when it is a gate lock, and takes water from an irrigation channel when it is a water intake gate.
[0003]
FIG. 5 is a sectional view showing another conventional gate opening / closing device (conventional example 2). A gate opening / closing device 201 shown in FIG. 5 includes a flap gate 210 and a hinge 203 that rotatably supports the upper portion of the flap gate 210. The gate opening / closing device 201 opens and closes the flap gate 210 by water pressure acting from the inside of the water channel 202.
[0004]
FIG. 6 is a sectional view showing still another conventional gate opening / closing device (conventional example 3). A gate opening / closing device 301 shown in FIG. 6 includes a gate pole 303, a winch 304 installed on the gate pole 303, a flap gate 310, a hinge 305 that rotatably supports an upper portion of the flap gate 310, and a flap gate 310. And a wire rope 306 connected to the lower part of the cable. The gate opening / closing device 301 opens and closes the water channel 302 by winding the wire rope 306 with the winch 304 and rotating the flap gate 310.
[0005]
[Problems to be solved by the invention]
However, since the gate opening and closing devices 101 and 301 shown in FIGS. 4 and 6 are provided with the gate pillars 103 and 303, when the gate opening and closing devices 101 and 301 are used as lock gates, the gate pillars 103 and 303 are flooded. Sometimes it could be a hindrance. In addition, when the gate opening / closing devices 101 and 301 are used in a water channel, the load transmitted to the foundation ground by the gate pillars 103 and 303 is increased, which may cause uneven settlement. Furthermore, in order to operate the opening / closing machine 104 and winch 304, it is necessary to provide a bridge for management and the like, which together with the gate pillars 103 and 303, damages the surrounding landscape and increases the construction cost. It was.
[0006]
The gate opening / closing devices 201 and 301 shown in FIG. 5 and FIG. 6 close the flap gates 210 and 310 in an incomplete state when floating substances are sandwiched between the flap gates 210 and 310 and the water channels 202 and 302. There is a possibility that the water channels 202 and 302 cannot be opened and closed reliably. In addition, if the closure of the flap gates 210 and 310 is incomplete, there is a possibility that river water will flow backward inside the bank. As a result, the use of the gate opening and closing devices 201 and 301 is limited to high ground areas in the levee where no disaster occurs even if river water flows backward. Further, the gate opening / closing devices 201 and 301 have a problem that they are not suitable for water intake because the opening cross section cannot be accurately determined when the flap gates 210 and 310 are rotated to the intermediate position. .
[0007]
An object of the present invention is to provide a gating equipment capable of reliably opening and closing a flow path in a compact.
[0008]
[Means for Solving the Problems]
The present invention solves the above problems by the following means. In addition, although it attaches and demonstrates the code | symbol corresponding to embodiment of this invention mentioned later, it is not limited to this.
That is, the present invention includes a gate (10) for opening and closing the flow path (2), driving the gate in a substantially vertical direction, switching the flow path from a closed state to a half-open state, and tilting the gate. And a switching device (1) including switching means (2b, 2c, 11, 12, 13, 14, 16, 17, 18) for switching the flow path from the half-open state to the full-open state.
[0009]
The switching means includes a drive unit (11, 12, 13, 14, 18) for driving the gate, a first guide unit (2b, 2c) for guiding the gate in a substantially vertical direction, and the first unit. connected to the first guide portion, which is to shall and further comprising a second guide portion and the (16, 17) for guiding along the gate in a substantially arc-shaped curve.
[0010]
Further, the drive unit is configured to prevent the gate from being separated from the arm (11, 12) to be rotationally driven, the link (13, 14) connecting the arm and the gate, and the first guide member. A pullback device (18) for pulling back the gate to the first guide portion in conjunction with the rotation of the arm is included.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
Hereinafter, the first embodiment of the present invention will be described in more detail with reference to the drawings. FIG. 1 is a front view of a gate opening / closing device according to a first embodiment of the present invention. FIG. 2 is a side view showing a closed state of the gate opening and closing device according to the first embodiment of the present invention. FIG. 3 is a side view of the gate opening / closing device according to the first embodiment of the present invention in a fully opened state.
[0012]
The gate opening / closing device 1 is a device that opens and closes a drainage gate that discharges river water and the like to prevent inflow. The gate opening / closing device 1 includes a gate 10, arms 11 and 12, links 13 and 14, a torque shaft 15, guide members 16 and 17, and a pullback device 18.
[0013]
The water channel 2 is a channel through which river water and the like flow. The water channel 2 includes an opening 2a and guide surfaces 2b and 2c. As shown in FIG. 1, the opening 2 a has a rectangular cross-sectional shape, and the outlet width is wider than the outlet height. The guide surfaces 2b and 2c are portions that guide the gate 10 so as to be movable in a substantially vertical direction. The guide surfaces 2b and 2c are formed at both ends in the width direction of the opening 2a.
[0014]
The base 3 is a base portion for fixing the torque shaft 15, the guide members 16, 17 and the pullback device 18 and the like. The base 3 is provided in the upper part of the water channel 2.
[0015]
The gate 10 is an opening / closing member that opens and closes the water channel 2. The gate 10 is a plate-like door having a larger area than the opening 2a. The gate 10 moves in a direction substantially perpendicular to the direction of the water flow to open and close the opening 2a. Water pressure is applied to the gate 10 in the direction opposite to the direction of water flow. The gate 10 includes rollers 10a, 10b, 10c, and 10d, bearings 10e and 10f, and pins 10g and 10h.
[0016]
The rollers 10a and 10c are rolling members that are in rolling contact with the guide surface 2b, and the rollers 10b and 10d are rolling members that are in rolling contact with the guide surface 2c. The rollers 10a, 10b, 10c, and 10d are rotatably attached to the gate 10. The bearings 10e and 10f are members that rotatably support the pins 10g and 10h, respectively. The bearings 10e and 10f are attached to the upper end portion of the gate 10. The pin 10g is a member that rotatably connects the bearing 10e and the link 13, and the pin 10h is a member that rotatably connects the bearing 10f and the link 14.
[0017]
The arms 11 and 12 are members that drive the gate 10 by a rotating operation. As shown in FIG. 1, one end of the arm 11 is attached to the torque shaft 15, and the other end is rotatably connected to the link 13. One end of the arm 12 is attached to the torque shaft 15, and the other end is rotatably connected to the link 14. When the arms 11 and 12 are at the solid line position shown in FIG. 2, the water channel 2 is closed by the gate 10, and when the arms 11 and 12 are at the two-dot chain line position, the water channel 2 is half-opened by the gate 10. Further, when the arms 11 and 12 are at the two-dot chain line position shown in FIG. 3, the water channel 2 is half-opened by the gate 10, and when the arms 11 and 12 are at the solid line position, the water channel 2 is fully opened by the gate 10. The arms 11 and 12 are provided with pins 11a and 12a at the tip portions, respectively. The pin 11a is a member that rotatably connects the arm 11 and the link 13, and the pin 12a is a member that rotatably connects the arm 12 and the link 14.
[0018]
The link 13 is a connecting member that rotatably connects the gate 10 and the arm 11, and the link 14 is a connecting member that rotatably connects the gate 10 and the arm 12. When the arms 11 and 12 rotate, the links 13 and 14 rotate about the pins 11a and 12a, respectively, so that the gate 10 can move in a substantially vertical direction.
[0019]
The torque shaft 15 is a drive shaft that rotates the arms 11 and 12. As shown in FIG. 1, the torque shaft 15 includes bearings 15a, 15b, and 15c and sprockets 15d, 15e, and 15f. The bearings 15a, 15b, and 15c are members that rotatably support the torque shaft 15. The bearings 15a, 15b, and 15c are attached to the base 3. The sprocket 15 d is a member for rotating the torque shaft 15. A chain is wound around the sprocket 15d in order to transmit a driving force generated by a driving motor (not shown). The sprockets 15e and 15f are members for rotating the crankshaft 18a. A chain (not shown) is wound around the sprockets 15e and 15f in order to rotate the crankshaft 18a in conjunction with the rotation of the torque shaft 15.
[0020]
The guide members 16 and 17 are members that guide the gate 10 movably along a substantially arcuate curve. The guide members 16 and 17 are formed in a substantially arc shape. The guide members 16 and 17 are connected to the guide surfaces 2b and 2c, respectively. The guide member 16 includes a guide surface 16a that guides the roller 10a and a guide surface 16b that guides the roller 10c. The guide member 17 includes a guide surface 17a for guiding the roller 10b and a guide surface 17b for guiding the roller 10d. The guide surfaces 16a and 17a have a smaller radius of curvature than the guide surfaces 16b and 17b.
[0021]
The pull-back device 18 is a device that pulls the gate 10 back to the guide surfaces 2a and 2b in conjunction with the rotation of the arm 12 so that the gate 10 does not leave the guide surfaces 2b and 2c. The pull-back device 18 constitutes a drive device that drives the gate 10 together with the arms 11 and 12, the links 13 and 14, and the torque shaft 18. The pullback device 18 includes a crankshaft 18a, a crank 18b, a rod 18c, a sprocket 18d, a chain 18e, and a chain guide 18f. 2 and 3 is connected to the pin 10g side, and the drawing back device connected to the pin 10h side is not shown.
[0022]
The crankshaft 18 a is a drive shaft that rotates in conjunction with the arms 11 and 12 and the torque shaft 15. The crankshaft 18a is set to a predetermined rotation ratio with the torque shaft 15 so as to pull back the chain 18e by a predetermined amount. The crank 18b is a member that rotates around the crankshaft 18a. One end of the crank 18b is attached to the crankshaft 18a, and the other end is rotatably attached to the rod 18c. The rod 18c is a member that converts the rotational motion of the crank 18b into linear motion. One end of the rod 18c is rotatably connected to the crank 18b, and the other end is rotatably connected to the sprocket 18d. The sprocket 18d is a member around which the chain 18e is wound. The sprocket 18d reciprocates in conjunction with the crank 18b. The chain 18 e is a member that pulls back the gate 10. One end of the chain 18e is fixed to the base 3 by a support member (not shown), and the other end is connected to the pin 10g. The chain 18e is wound around the sprocket 18d and the torque shaft 15. The chain guide 18f is a pair of rotating bodies that sandwich and guide the chain 18e. The chain guide 18f is rotatably attached to the base 3.
[0023]
Next, the operation of the gate opening / closing device according to the first embodiment of the present invention will be described. In the state shown in FIGS. 1 and 2, the water channel 2 is closed by the gate 10. When the torque shaft 15 is driven and the arms 11 and 12 rotate in the A direction, the links 13 and 14 lift the gate 10. When the arms 11 and 12 rotate, the gate 10 starts to rise away from the guide surfaces 2a and 2b, and tries to contact the guide surfaces 2a and 2b again. At this time, the pull-back device 18 rotates the crank 18b in the B direction in conjunction with the rotation of the arms 11 and 12, and moves the sprocket 18d in the C direction. When the chain 18e pulls the pins 10g and 10h back in the C direction, the links 13 and 14 rotate around the pins 11a and 12a. As a result, the gate 10 is pulled back toward the guide surfaces 2b and 2c and rises in the vertical direction along the guide surfaces 2b and 2c. When the arms 11 and 12 rotate from the solid line position shown in FIG. 2 to the two-dot chain line position, the gate 10 opens the water channel 2 by about a half, and the water channel 2 changes from the closed state to the half-open state.
[0024]
As shown in FIG. 3, when the arms 11 and 12 further rotate in the A direction, the rollers 10a and 10b are guided by the guide surfaces 16a and 17a, respectively, and the rollers 10c and 10d are respectively guided by the guide surfaces 16b and 17b. The For this reason, the gate 10 changes from a vertical rise to an arc-like rise following the rotational movement of the arms 11 and 12, and the posture gradually tilts. When the arms 11 and 12 are rotated from the solid line position shown in FIG. 3 to the two-dot chain line position, the gate 10 is retracted to the upper part of the water channel 2 while being inclined with respect to the horizontal direction, and the water channel 2 is opened from the half-open state to the fully open state. become. When the arms 11 and 12 and the crank 18c rotate in the reverse direction from the state shown in FIG. 3, the gate 10 is lowered and the water channel 2 is changed from the fully open state to the closed state.
[0025]
The gate opening / closing device according to the first embodiment of the present invention has the following effects.
(1) In the first embodiment of the present invention, the gate 10 that opens and closes the water channel 2 is driven in a substantially vertical direction, the water channel 2 is switched from the closed state to the half-open state, and the gate 10 is inclined. The water channel 2 is switched from the half-open state to the full-open state. As described above, the gate opening / closing device 1 includes a vertical opening / closing mechanism using a roller gate and an arcuate opening / closing mechanism using a flap gate. As a result, when the water channel 2 is switched between the closed state and the half-open state, the gate 10 is driven in a substantially vertical direction, so that floating substances are sandwiched between the gate 10 and the water channel 2 to prevent the inability to close. be able to. In addition, when the water channel 2 is switched between the half-open state and the full-open state, the gate 10 is inclined, so that a gate pillar is not required, the landscape is not damaged, and the construction cost can be reduced.
[0026]
(2) In the first embodiment of the present invention, the guide surfaces 2b and 2c guide the gate 10 driven by the arms 11 and 12 and the links 13 and 14 in a substantially vertical direction, and the guide members 16 and 17 Guide along a generally arcuate curve. For this reason, the posture of the gate 10 can be easily changed according to the open / closed state of the water channel 2.
[0027]
(3) In the first embodiment of the present invention, the pull-back device 18 is connected to the guide surfaces 2b and 2c in conjunction with the rotation of the arms 11 and 12 so that the gate 10 is not separated from the guide surfaces 2b and 2c. 10 is pulled back. For this reason, since the gate 10 moves along the guide surfaces 2b and 2c, it is possible to reliably prevent a suspended matter from being sandwiched between the gate 10 and the water channel 2 and becoming impossible to close.
[0028]
(4) In the first embodiment of the present invention, the rollers 10a, 10b, 10c, 10d are brought into rolling contact with the guide surfaces 2b, 2c to raise or lower the gate 10. For this reason, even if water pressure is applied to the gate 10, the frictional force between the guide surfaces 2b, 2c and the gate 10 can be reduced to open and close the gate 10 easily.
[0029]
(Other embodiments)
The present invention is not limited to the embodiment described above, and various modifications or changes can be made as described below, and these are also within the equivalent scope of the present invention.
(1) Although the embodiment of the present invention has been described by taking the drainage lock gate as an example, the present invention is not limited to this and can be applied to a water intake gate for taking water from a water channel.
[0030]
(2) The embodiment of the present invention has been described by taking as an example the case where the water channel 2 is opened by about ½ by the gate 10, but the length of the arms 11, 12 can be varied to change the vertical of the gate 10. The amount of elevation in the direction can be adjusted arbitrarily.
[0031]
(3) Although the embodiment of the present invention has been described by taking as an example the case where the gate 10 is pulled back by the chain 18e, the gate 10 may be pulled back by a wire rope.
[0032]
(4) In the embodiment of the present invention, the driving force generated by the torque shaft 15 is transmitted to the crankshaft 18 a by the chain, and the rotation of the crankshaft 18 a is interlocked with the rotation of the torque shaft 15. In this case, the rotation ratio between the torque shaft 15 and the crankshaft 18a can be adjusted by the number of teeth of the sprockets 15e and 15f.
[0033]
(5) Although the embodiment of the present invention has been described by taking as an example the case where the torque shaft 15 and the crankshaft 18a are rotated by one drive motor, these may be driven by separate drive motors. . The rotating mechanism of the torque shaft 15 may be a hydraulic type such as a cylinder or a torque actuator, or a mechanical type such as a gear or a chain. Similarly, the rotation mechanism of the crankshaft 18a may be a hydraulic type such as a cylinder or a torque actuator, a mechanical type such as a gear or a chain, an electric motor, or the like.
[0034]
【The invention's effect】
As described above in detail, according to the present invention, the gate that opens and closes the flow path is driven in a substantially vertical direction, the flow path is switched from the closed state to the half-open state, and the gate is inclined to Since the apparatus is switched from the half-open state to the full-open state, the apparatus can be made compact and the flow path can be reliably opened and closed.
[0035]
In addition, since the gate is pulled up while being guided in a substantially vertical direction along the first guide portion, the gate is pulled up along the second guide portion formed of a substantially arc-shaped curve, so that depending on the open / close state of the water channel The posture of the gate can be changed easily.
[0036]
Furthermore, in order to prevent the gate from leaving the guide surface, the gate is always moved along the guide surface because the gate is pulled back to the guide surface by the pulling device in conjunction with the rotation of the arm. . For this reason, it is possible to reliably prevent an accident that a floating substance is sandwiched between the gate and the water channel and the gate cannot be closed.
[Brief description of the drawings]
FIG. 1 is a front view of a gate opening / closing device according to a first embodiment of the present invention.
FIG. 2 is a side view showing a closed state of the gate opening and closing device according to the first embodiment of the present invention.
FIG. 3 is a side view of the gate opening / closing device according to the first embodiment of the present invention in a fully opened state.
FIG. 4 is a cross-sectional view showing a conventional gate opening / closing device (conventional example 1).
FIG. 5 is a cross-sectional view showing a conventional gate opening / closing device (conventional example 2).
FIG. 6 is a cross-sectional view showing a conventional gate opening / closing device (conventional example 3).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Gate opening / closing apparatus 2 Flow path 2a Opening part 2b, 2c Guide surface 10 Gate 10a-10d Roller 11, 12 Arm 13, 14 Link 15 Torque shaft 16, 17 Guide member 16a, 16b, 17a, 17b Guide surface 18 Pull-back apparatus 18a Crankshaft 18b Crank 18c Rod 18d Sprocket 18e Chain

Claims (1)

A gate that opens and closes the flow path;
By driving the gate in a substantially vertical direction, switching to half open the flow path from the closed state, and, by tilting the gate, viewed including a switching means for switching the fully open state the flow path from the half-opened state,
The switching means is
A driving unit for driving the gate;
A first guide portion for guiding the gate in a substantially vertical direction;
A second guide part connected to the first guide part and guiding the gate along a substantially arcuate curve;
The drive unit is
An arm that rotates,
A link connecting the arm and the gate;
A pull-back device that pulls back the gate to the first guide portion in conjunction with the rotation of the arm so that the gate does not leave the first guide member;
A gate opening and closing device.

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