JPH0336578Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an automatic tipping gate configured so that when the water level of the waterway rises above a predetermined value, a weir plate installed in the waterway automatically falls over to open the waterway. .

As for the above-mentioned automatic overturning gate, one has been developed that uses a float as a water level sensing device and uses the buoyancy of the float to mechanically release the locking mechanism of the weir plate. In this type of automatic overturning gate, the locking mechanism may not be released properly due to insufficient buoyancy of the float, and there is a risk of water damage occurring when the water rises.

This invention was made in view of the above circumstances,
To provide an automatic overturning gate that reliably overturns a weir plate when the water level exceeds a predetermined value and is easy to manage.

In other words, the automatic tipping gate according to the present invention is
A weir plate supported in a fallable manner in a waterway, and a hoisting device for hoisting the weir plate upright with a wire,
At all times, the wire is fixed by restraint means to support the weir board in an upright state, but when the water level in the waterway rises above a predetermined value, the restraint means is released, the wire is let out from the hoisting device, and the weir board is automatically raised. an automatic overturning gate configured to overturn the gate, including a motor activated by the sensing device for detecting a rise in the water level, and a release device driven by the power of the motor to release the restraint means; It is characterized by having the following.

Hereinafter, a more detailed explanation will be given based on the embodiments shown in the drawings.

Fig. 1 is a side view showing one example of the automatic overturning gate according to the present invention, Fig. 2 a and b are views in the direction of arrows A and B in Fig. 1, and Fig. 3 is an enlarged view of a portion thereof. FIG. Moreover, FIGS. 4 to 9 are explanatory diagrams of the hoisting device, and FIG. 10 is an explanatory diagram showing the relationship between each part. This automatic overturning gate includes a weir plate 1 whose base 1a is hingedly attached to the bottom of a waterway 2, a hoisting device 3, and a flat mounting piece provided at the upper end of one side of the weir plate 1. An end portion of the wire 5 let out from the hoisting device 3 is attached to the wire 4 . The wire 5 is attached to the mounting piece 4 through holes drilled in the mounting piece 4 on both the left and right sides.
This is done by binding the wire 5 passed through the wire 5 into a loop with a fixture 5a. A distribution tool 1b is provided at the center of the upper end of the weir plate 1 to distribute water to the left and right.

The winding device 3 includes a gear train consisting of a plurality of gears and other parts housed inside an outer box 10, and a pulley 11 for winding the wire 5 on the side surface facing the waterway.
is provided. Shaft 12 supporting pulley 11
is supported by bearings 13, 13', and pulley 1
A gear 15 is attached to the end opposite to 1.

Next to the pulley shaft 12, an intermediate shaft 16 parallel to the pulley shaft is supported by bearings 17, 17', and two gears 19, 20 are mounted on this intermediate shaft 16.
and a sprocket wheel 21 are fitted.
In the figure, 22 and 22' are collars. One gear 19 of the intermediate shaft 16 is always in mesh with the gear 15 of the pulley shaft.

Bearings 24, 24' are disposed diagonally below the intermediate shaft 16.
A winding shaft 25 supported by is provided parallel to the intermediate shaft 16. A ratchet wheel 26 and a gear 27 are fitted to the winding shaft 25.
Furthermore, a rotating frame 30 is rotatably attached via a bush 29. The rotating frame 30 consists of a pair of left and right plates, the lower end of which is fitted onto the winding shaft,
A gear 33 supported by a shaft 31 and bearings 32, 32' is provided at the intermediate portion, and bearings 35, 35' fitted to a shaft 34 are provided at the upper end. The gear 27 and the gear 33 are always in mesh with each other. A stopper 37 that is pivotally supported by a pin 36 is engaged with the ratchet wheel 26 so that it can rotate only in one direction (the winding direction). That is, the ratchet wheel 26 serves as a restraining means for restraining the free rotation of the hoisting shaft 25, and the gears 15, 19, 20, 27, 33, etc. serve as a transmission device that connects the pulley shaft 12 and the hoisting shaft 25. It is becoming. In the figure, 39 is the stopper 37
It is a leaf spring that holds down the . The end of the winding shaft 25 on the side opposite to the water channel protrudes from the outer box 10, and the tip 25a is a square bar into which the winding handle is fitted. By fitting a handle with a square hole into the tip 25a and rotating the winding shaft 25 in the winding direction, the fallen weir plate 1 can be erected.

A cam shaft 40 is provided diagonally above the winding shaft 25, and a cam 41 is mounted on this shaft 40 with bearings 42, 4.
It is rotatably attached via 2'. The cam 41 has the bearings 35, 35' on its outer periphery.
It is formed into a disk shape with a sector-shaped recess 41a into which the lever 43 is fitted, and a lever 43 is provided to protrude in the radial direction from above the recess 41a. The rotating frame 30 is provided on the outer peripheral surface of the cam 41 just below the recess 41a.
Bearings 35, 35' are in contact with each other, and the rotating frame 30, which is always biased clockwise in the figure by a coil spring 45, is supported thereby. And like this bearing 35,3
5' is not fitted into the recess 41a, the gear 33 of the rotating frame 30 meshes with the gear 20 of the intermediate shaft 16, as shown by the chain line in FIG.

A support shaft 50 is provided above the pulley shaft 12, and a rotating disk 51 is rotatably supported by a bearing 52. An arm 53 that projects horizontally is fixed to the rotating disk 51, and one end of the arm 53 is pivotally attached to the lever 43 of the cam 41.
The opposite end of the connecting rod 56 connected to the pivot point 5
7 has been done. An elongated hole 59 along the circumferential direction is bored in the lower part of the rotating disk 51, and a rotation regulating bar 60 is loosely fitted into the elongated hole 59.

An oil brake 70 is attached to the side wall of the outer box 10, and a sprocket wheel 72 fitted onto its rotating shaft 71 is connected to the sprocket wheel 21 of the intermediate shaft 16 by a chain 73. The rotation speeds of the intermediate shaft 16 and the pulley shaft 12 are regulated by the oil brake 70.

Note that between the pulley shaft 12 and the winding shaft 25,
If necessary, more gears, chains, etc. can be inserted to reduce the force required for hoisting the weir plate 1.

Furthermore, in the part of the outer box 10 opposite to the waterway,
A mounting plate 80 is provided at a position facing the arm 53, and a motor 81, a reduction gear 82, and a limit switch 83 are mounted on the mounting plate 80.
A rotary lever that projects vertically is fixed to the tip of an output shaft 85 of a motor 81 whose rotational speed is reduced by a speed reducer 82 (for example, to a reduction ratio of 1/20). One rotary lever 86 is provided with a horizontal protrusion 87 near its tip, and when the motor 81 is stopped, this protrusion 87 is located at the lower end, and the arm 53 is maintained on it. It is configured as follows. Moreover, the rotating lever 89 on the opposite side is 1
Each time it rotates, it comes into contact with the actuator 90 of the limit switch 83, and sends a signal to the control box to cut off the power to the motor 81. This motor 81 includes a rotating disc 51, an arm 5
3. Connecting rod 56, lever 53 and cam 41
It serves as the power source for the drive device of the release device F, which is composed of the following.

The power source for the motor 81 is a battery 93 that is charged by a solar cell 92 provided on the upper cover 10a of the outer box 10. A motor starting circuit in which the battery 93 and the motor 81 are connected by wiring is provided with a switch lever 103 for opening and closing the circuit, which is attached to a switch box 101 and biased downward by a spring 102. There is. A float 105 is provided in a float chamber communicating with a water channel provided below the switch box 101, and an upper end 106a of a rod 106 that projects upward from the float 105 is located directly below the switch lever 103. ing. In addition, the battery 93, motor starting circuit, and motor 81
A buzzer 98 that issues a warning while the is rotating is housed in a control box 99. 9
Reference numeral 7 denotes a manual push button, which allows the motor 81 to be manually rotated regardless of the vertical movement of the float 105. FIG. 11 is a flowchart showing the operation of the drive device of the release device F.

Next, to explain the operation of this automatic overturning gate, when the weir plate 1 is upright as shown in FIGS. 1 and 2, the arm 53 of the rotating disc 51
However, as shown in FIGS. 8 and 9, the rotation lever 86
is maintained on the upper surface of the protrusion 87.
In this state, the bearings 35, 3 of the rotating frame 30
5' is located outside the recess 41a of the cam 41 and
The movable gear 33 at the intermediate portion of the rotating frame 30 meshes with the gear 20 of the intermediate shaft 16 . Further, the movable gear 33 meshes with a gear 27 fixed to the winding shaft 25, and the winding shaft 25 has a ratchet wheel that allows the winding shaft 25 to rotate only in the winding direction (the direction in which the weir plate 1 is erected). 26 is fixed, even if a force (due to water pressure and the gravity of the weir plate 1) in the direction of pushing down the weir plate 1 is applied to the pulley 11 via the wire 5, the pulley shaft 12 does not rotate. The dam board will never collapse.

Next, when the waterway increases due to heavy rain and the water level reaches a predetermined value, the float 105 rises above a predetermined amount, and the rod 1 provided at the upper end of the float 105 floats.
The upper end 106a of 06 pushes up the switch lever 103 against the spring 102, thereby closing the motor starting circuit and rotating the motor 81, so that the output shaft 85 is slowly rotated by the action of the reducer 82. and rotate. Accordingly, the protrusion 87 of the rotary lever 86 pushes up the arm 53 (arrow P), causing the rotary disk 51 to rotate in the direction of the arrow Q, and the connecting rod 56 pivoted thereon to move in the direction of the arrow R. To move the cam 41, the lever 43 rotates the cam 41 in the direction of arrow S. Then, the recess 41a becomes the fifth
In order to move to the position indicated by the chain line in the figure, the bearings 35, 35' fall into the recess 41a, and the rotating frame 30 rotates by that amount in the direction of arrow T (clockwise), and the movable gear 33 and gear 20 The engagement between the two is broken. As a result, the intermediate shaft 16 and the pulley shaft 12 are no longer restrained by the ratchet 26, and the pulley 11
can now rotate freely,
The wire 5 is let out from the pulley 11, and the weir plate 1 suspended by the wire falls in the direction of arrow Z with the base 1a as the center of rotation. As shown in FIG. 9, the rotary disk 51 is provided with an elongated hole 59 in the lower right portion thereof, and the weight of this portion is light, so that the rotary disk 51 can be moved slightly in the direction of the arrow Q. If it rotates, the weight balance will be disrupted and it will be biased in the direction of more rotation. On the other hand, just before the rotation lever 89 rotates once and returns to its original position, it presses the actuator 90 of the limit switch 83, so a signal to stop the motor 81 is sent to the control box 99, and the rotation of the motor 81 is stopped and restarted. Stay in the initial state. Note that even if a stop signal is sent to the motor 81 starting circuit, the rotary lever 89 will stop beyond the actuator 90 due to the remaining force. Furthermore, the actuator 90 automatically returns when the rotation lever 89 passes;
If the switch lever 103 remains pushed up, an input signal is sent to the motor starting circuit again, causing the motor 81 to rotate. When the water level falls due to the overturning of the weir plate 1, the float 105 also falls accordingly, so that the switch lever 103 returns to its initial state by the contraction force of the spring 102, and the motor 81 stops. In addition, the switch lever 103
It would be convenient if it could be operated manually.

As mentioned above, the float 105 that senses the water level
Separately, since a motor 81 is provided as a power source for the releasing device of the locking mechanism of the weir plate, sufficient output can be obtained. Since the buoyancy of the float is used to operate the switch lever that opens and closes the circuit of this motor, a large force is not required and the switch lever can be operated reliably even with a small diameter float. Further, since the float is housed in the cylindrical float chamber 109, it is not affected by the flow of water or floating objects in running water. In addition, although the illustrated example uses a solar battery as a power source,
A dry cell, a storage battery, etc. may be used as a power source. Furthermore, as a sensing device for sensing the water level, in addition to the float, known water level detection means such as an optical sensor or an electrical sensor can be used.

When standing up the fallen weir board 1, use the arm 5.
3 is rotated in the anti-Q direction and placed on the protrusion 87 of the rotary lever 86 (the gear 20 and the movable gear 33 mesh with each other), and the handle 100 is fitted onto the tip 25a of the winding shaft 25 to wind the winding. Just rotate it in the direction.

As explained above, since the automatic overturning gate according to the present invention releases the locking mechanism of the weir plate by the power of the motor, its operation is reliable. Furthermore, since no complicated structure is required, construction for installation is easy, and maintenance and management are also easy.

[Brief explanation of drawings]

Figure 1 is a side view of the automatic overturning gate, Figure 2 a,
b is a view taken along arrows A and B in Fig. 1, Fig. 3 is a partially enlarged view, Fig. 4 is a partially expanded sectional view of the hoisting device, and Fig. 5 shows the meshing relationship of the gear train. Mechanism diagram, Figure 6 is an explanatory diagram of the ratchet wheel, Figure 7 is a side view showing the relationship between the rotating frame and the cam, Figure 8 is a plan view of the upper part of the hoisting device, Figure 9 is a side view thereof, FIG. 10 is an explanatory diagram showing the relationship between each part, and FIG. 11 is a flowchart. 1... Weir plate, 2... Channel, 3... Hoisting device, 4... Mounting piece, 5... Wire, 10... Outer box, 11... Pulley,
12... Axis, 15, 19, 20, 27... Gear, 33
...Movable gear, 16...Intermediate shaft, 26...Ratchet wheel, 41...Cam, 51...Rotating disk, 53...Arm, 81...Motor, 86, 89...Rotating lever,
92...Solar cell, 93...Battery, 103...Switch lever, 105...Float, 106...Rod, F...Release device.

Claims (1)

[Scope of utility model registration request] It is equipped with a weir plate that is supported in a fallable manner in the waterway, and a hoisting device that suspends the weir board with wires and stands it upright.Although the wires are usually fixed with restraint means and the weir plate is supported in an upright state, In an automatic overturning gate configured to release the restraining means and automatically overturn the weir plate by letting out a wire from the hoisting device when the water level inside rises above a predetermined value, the gate is attached to the outer surface of the hoisting device. a battery that stores electric power from the solar battery; a motor that rotates using the battery as a power source to release the restraining means; and a motor that starts when the water level in the waterway rises to a predetermined value or higher. An automatic overturning gate characterized by being equipped with a sensing device for detecting