JPH0340904Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field) This invention relates to an overturning weir that allows water stored in a waterway to be released by overturning a weir plate installed in a waterway as necessary. It is.

(Background technology) The base of the weir plate is pivotally attached to the bottom of the waterway, and the upper end of the weir plate is connected to a wire fed out from a hoisting device installed on the embankment, and the weir plate is suspended by this wire.
An overturning weir has been put into practical use that is supported in an upright position, and in the event of a temporary increase in water due to a typhoon, the weir plate can be collapsed to release water stored in the canal. There is. In this type of overturning weir, the pulley of the hoisting device protrudes toward the waterway side, and the wire fed out from this pulley is connected to the upper end of the weir plate, but it is said that the wire tends to become entangled with debris and floating objects in the flowing water. There was a problem.

In addition, since the hoisting device is installed on the embankment, the wire for suspending the weir board in the waterway is stretched parallel to the waterway, and in order to prevent the generation of lateral force as much as possible, it is necessary to install the hoisting device on the embankment. It was necessary to increase the amount of protrusion of the pulley toward the waterway, which often caused problems in terms of strength.

In order to improve the shortcomings of the conventional overturning weir, an overturning weir has been developed in which an arc-shaped groove is provided on the side wall of the waterway along the trajectory of the upper end of the weir plate, and a wire is passed through the groove. Although this method has been developed, it is difficult to form arcuate grooves with sufficient accuracy on the side walls of waterways, and it is not economically desirable. Further, passing a wire subjected to large tension through an arc-shaped groove tends to cause problems in maintaining smooth operation, and the wire itself is likely to wear out.

(Purpose of the invention) The present invention was devised in view of the above-mentioned circumstances, and aims to provide an overturning weir that prevents dust and floating objects from getting entangled in wires and is easy to construct.

(Disclosure of the invention) That is, the overturning weir according to the present invention includes a weir plate whose base is pivotally attached to the bottom of the waterway, and the weir plate is erected by a hoisting device via a wire attached to the upper end of the weir plate. In the overturning weir, the weir plate is supported in a state where the weir plate is supported, and is configured to be able to overturn the weir plate to open the waterway if necessary, and a fitting that protrudes upward is provided at the upper end of the weir plate,
A rod-shaped connecting member is attached to the end of the fixture so as to be rotatable in the same direction as the weir plate, and the free end of the connecting member has a protrusion that projects toward the side wall of the waterway. The end of the wire is connected to the protrusion, and the protrusion of the connecting member fits into the side wall of the waterway so that it can move up and down as the weir plate rotates. It is characterized by the formation of linear grooves.

(Example) Hereinafter, the example shown in the drawings will be described in detail.

Fig. 1 is a side view showing an example of the overturning weir according to the present invention, Figs. 2 and 3 are views in the direction of the X and Y arrows in Fig. 1, and Figs. 4 and 5 are They are an A-B-CD cross-sectional view and an E-E cross-sectional view in FIG. 1. This overturning weir G is an automatic overturning gate configured to automatically release stored water downstream when a predetermined water level is reached, and the base 2a is hinged to the bottom of the waterway 1. It is provided in a waterway 1 whose side walls and bottom are hardened with concrete, and is equipped with a weir board 2 and a hoisting device 3 installed on the embankment. The weir plate 2 is supported in an upright state suspended by the wire 5, with the end of a wire 5 fed out from a hoisting device 3 attached to a connecting device 4 provided on the upper part of the weir plate 2. has been done.
In the figure, 2b is a distribution tool for distributing water 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 colors. 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.
Further, 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 the shaft 3 support member 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.
It can only rotate in one direction (winding direction). In the figure, 39 is a leaf spring that presses the stopper 37. Note that the end of the winding shaft 25 on the opposite side to the waterway protrudes from the outer box 10, and the tip 2
5a is a square rod part into which the winding handle is fitted. By fitting a handle with a square hole into the tip 25a and rotating the hoisting shaft 25 in the hoisting direction, the overturned 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, 42.
It is rotatably attached via '. The cam 41 is formed into a disc shape with a fan-shaped recess 41a on the outer circumference into which the bearings 35, 35 are fitted, and a lever 43 is provided to protrude in the radial direction from above the recess 41a. Bearings 35, 35' of the rotating frame 30 are in contact with the outer circumferential surface of the cam 41 just below the recess 41a, and the rotating frame is always biased clockwise in the figure by the coil spring 45. 30 is supported by this. And like this, bearings 35, 35'
When the rotary frame 30 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.

A spherical float 63 housed in a water hole 61 communicating with a water channel is fixed to the lower end of a rod 62 that penetrates the bottom of the outer box 10 and protrudes downward. A plate 65 is fixed.

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, install more gears, and weir plate 1
The force required for winding can be reduced.

The structure of the coupling device 4 is shown in FIG. That is, a plate-shaped fixture 80 is provided integrally with the weir plate 2 at the upper end of the side of the weir plate 2 on which the hoisting device 3 is installed, and this fixture 80 has one end of a rod-shaped connecting member 81. A recessed portion 81a formed in the portion is fitted, and both 80 and 81 are pivotally connected by a pin 82. Further, a pin 84 of a protrusion 83 that protrudes toward the side wall of the water channel 1 is provided at the free end of the connecting member 81, and a connecting member 86 with a roller 85 provided on the protruding portion of the pin 84 rotates. It is attached so that it can move freely. The end of the wire 5 is
It is attached to this connecting member 86. Also,
A linear guide groove 88 having a cross-sectional shape as shown in FIG. 5 is provided on the side wall of the waterway so as to be inclined so that the lower part is located on the downstream side. The protrusion 83
is movably and loosely fitted into this guide groove 88. Note that the guide groove 8 in which the roller 85 rolls
8 has a rail material 89 with a smooth surface.
is lined. Further, a stopper 90 protruding into the groove is provided at the lower end of the guide groove 88, and the connecting member 86 is loosely fitted inside the guide groove 88 so as to be vertically movable. Note that 92 in the figure is a hole for securing a space for assembly, and is covered with a cover after the coupling device 4 is assembled.

Next, to explain the operation of this overturning weir, when the weir plate 1 is upright as shown by the solid line in FIG. 1, the arm 53 of the rotating disk 51 is As shown in the figure, the float 63 is maintained on a support plate 65 at the upper end of the rod 62. In this state, rotating frame 3
0 bearings 35, 35' are in the recess 4 of the cam 41.
1a and is in contact with the outer peripheral portion of the cam 41, and the gear 33 at the intermediate portion of the rotating frame 30 meshes with the gear 20 of the intermediate shaft 16. The gear 33 meshes with a gear 27 fixed to the winding shaft 25, and the winding shaft 25 has a ratchet wheel 26 that allows the winding shaft 25 to rotate only in the winding direction (the direction in which the weir plate 1 is erected). is fixed, so 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 2 is applied to the pulley 11 via the wire 5, the pulley shaft 12 will not rotate. The dam will not collapse. In this state, water on the upstream side gradually flows over the weir plate and flows downstream.

Next, when the waterway increases due to a shower or the like and the water level reaches the overturning water level WL, the float 63 moves upwards (arrow P) due to buoyancy, and the upper end of the rod 62 integrated with the float 63 moves to the support plate. Arm 53 on 65
rotate it upward. For this reason, the rotating disk 51
rotates in the direction of arrow Q and moves the connecting rod 56 pivoted thereon in the direction of arrow R, so that the lever 43 rotates the cam 41 in the direction of arrow S.
Then, since the recess 41a moves to the position shown by the chain line in FIG.
1a, the rotation frame 30 rotates in the direction of arrow T (clockwise) by that amount, and the gear 33 and the gear 20 are disengaged. As a result, the intermediate shaft 16
Since the pulley shaft 12 and the pulley shaft 12 are no longer constrained by the ratchet 26 and the pulley 11 can rotate freely, the wire 5 is let out from the pulley 11 and the weir plate 2 suspended by this wire is The base 1a is the center of rotation and falls over. As shown in FIG. 11, the rotary disk 51 is provided with an elongated hole 59 at the lower right portion thereof, and the weight of this portion is light, so that the rotary disk 51 is slightly rotated 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.

The manner in which the weir board 2 is laid down is shown by the chain line in FIG. 1, with the state Z indicating the state in the middle of lodging, and the state Z' indicating the state completely laid down. The connecting member 81 and the connecting member 86 of the connecting device 4 rotate about the pins 82 and 84 as the weir plate 2 falls. Further, the roller 85 of the connecting member 86 is connected to the guide groove 88.
rolling on the side wall of As can be seen from the figure, even though the tip of the weir plate 2 falls down while drawing an arcuate trajectory, the wire 5 is always kept straight in a fixed direction (guide groove 88 direction). That is, by providing the above-mentioned connecting device 4, even if the guide groove is formed in a straight line, no unreasonable force is applied to the wire, and smooth operation can be maintained. In addition, since the wire 5 is connected to the weir plate through the guide groove provided on the side wall of the waterway, there is no need for the pulley 11 to protrude significantly onto the waterway, reducing the load applied to the pulley shaft 12 that supports the pulley. can do. Since the wire 5 passes through the guide groove 88, it is not tangled with dust or the like.

When raising the fallen weir plate 2, since the float 63 has descended, the arm 53 is rotated in the anti-Q direction and placed on the support plate 65 (the gear 20 and the gear 33 mesh). The handle 100 may be fitted onto the tip 25a of the winding shaft 25 and rotated in the winding direction. Since the arm 53 and the support plate 65 are exposed on the upper surface of the outer box 10, this return operation is easy.

Although the embodiment has been described using an automatic overturning gate as an example, it goes without saying that similar effects can be obtained with a manual overturning weir.

(Effects of the invention) As is clear from the above explanation, the overturning weir according to the present invention connects the wire for suspending the weir plate to the weir plate through a linear groove provided on the side wall of the waterway, so construction of the waterway is easy. It is easy to use, and it is highly practical as it prevents dust from getting tangled in the wire during use.

[Brief explanation of the drawing]

Figure 1 is a side view of the overturning weir, Figures 2 and 3 are views from the X and Y arrows in Figure 1, and Figures 4 and 5.
The figure shows the A-B-C-D sectional view and the E-
E sectional view, Fig. 6 is a sectional view of the hoisting device partially expanded, Fig. 7 is a mechanism diagram showing the meshing relationship of the gear train, Fig. 8 is an explanatory diagram of the ratchet wheel, Fig. 9 10 is a side view showing the relationship between the rotating frame and the cam, FIG. 10 is a plan view of the upper part of the winding device, and FIG. 11 is a side view thereof. 1... Channel, 2... Weir plate, 3... Hoisting device,
4... Connecting device, 5... Wire, 10... Outer box,
11... Pulley, 12... Shaft, 15, 19, 2
0,27...Gear, 33...Movable gear, 16...
Intermediate shaft, 26... Ratchet wheel, 41...
Cam, 51...Rotating disk, 53...Arm, 63
... Float, 80 fitting, 81 ... connection member,
86... Connection member, 88... Guide groove, G... Overturning weir.

Claims (1)

[Scope of utility model registration request] Equipped with a weir plate whose base is pivoted to the bottom of the waterway,
An overturning weir configured to support the weir plate in an upright state by a hoisting device via wires attached to its upper end, and to allow the weir plate to be overturned to open the waterway if necessary. A fitting that projects upward is provided at the upper end of the weir plate, and a rod-shaped connecting member is pivotally attached to the end of the fitting so as to be rotatable in the same direction as the rotation direction of the weir plate. The free end of the connecting member is provided with a protrusion projecting toward the side wall of the water channel, the end of the wire is connected to the protrusion, and the side wall of the water channel is provided with
An overturning weir characterized by forming a linear groove into which the protrusion of the connecting member can fit and move up and down within the weir plate as the weir plate rotates.