JPH07317047A - Winch for tipping weir - Google Patents

Abstract

PURPOSE:To facilitate the resetting operation of a locking device by mounting a locking resetting device resetting the locking function of the locking device due to wind-up operation when the operation is carried out for a tipped panel. CONSTITUTION:A locking device 11 is composed of a ratchet 44 and a ratchet wheel 51, and a locking resetting device IV is constituted of an actuating lever 35 and an actuating pawl 65. When dust, etc., are stuck round a form panel 3, a pulley shaft 31 is rotated in the direction that the tipped panel 3 is erected when a handle is fitted to the square bar section of a winding shaft 50 and the winding shaft 50 is turned in the direction of winding The actuating lever 35 for the pulley shaft 31 pushes up the actuating pawl 65 for a camshaft 60, and a cam 61 is revolved in the counter-A Revolving torque by a balance weight 64 is applied, a bearing 47 is pushed out from a recessed section 61a, a rotary frame 41 is rotated in the counter-B direction, and the ratchet 44 is engaged with the ratchet wheel 51 again, thus resetting the locking device 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoisting device used for an overturning weir capable of overturning a weir plate provided in a waterway as necessary to discharge the water stored in the waterway. It is about.

[0002]

2. Description of the Related Art The base of a weir plate is pivotally attached to the bottom of a water channel, and the upper end of the weir plate is connected to a wire fed from a hoisting device provided on a levee. In addition, a fall weir has been put into practical use that supports it in a standing state and, when the waterway temporarily rises due to a typhoon or the like, is capable of overturning the waterway and discharging the water stored in the waterway. There is. Conventionally, the weir plate hoisting device used for this type of overturning weir has a structure in which a locking device for preventing the reversal of the hoisting shaft from being manually rotated is set again when the overturned weir plate is erected. It was If the reset of the locking device is neglected, the handle of the winding shaft is taken by the weight of the weir plate when the weir plate is wound, and the weir plate falls over, so that the weir cannot be wound.

[0003]

However, the hoisting device is generally housed in a sturdy case for protection and waterproofing, and the lid of the case must be opened and closed every time the lock device is reset. Therefore, there is a problem in that the work of resetting the locking device is troublesome.

[0004]

In order to solve the above problems, the present invention has the following constitution. That is, the device for winding a fall weir according to the present invention includes a winding device that winds a winding wire that is pivotally attached to an upright / inclinable dam plate whose base portion is pivotally attached to the bottom of a water channel, and a winding device. In a hoisting device for a fall weir, which includes a locking device that locks the winding device in the upright state of the weir plate, and a releasing device that releases the locking function of the locking device when the water level in the water channel increases above a predetermined amount It is characterized in that a lock reset device is provided for returning the lock function of the locking device due to the winding operation when the fallen barrier plate is wound up.

[0005]

With the operation of the lock reset device, the lock function of the lock device is automatically restored due to the winding operation of the fallen barrier plate. Therefore, the operator does not have to bother to reset the lock device.

[0006]

1 and 2 show an example of a water storage state of an overturning weir equipped with a winding device according to the present invention. This overturning weir 1 is a weir plate 3 in which a base 3a is pivotally attached to the bottom of a waterway 2.
And a hoisting device 4 installed on the embankment.
The barrier plate 3 has a plate-shaped mounting piece 6 provided at the upper end on the side where the winding device is installed, to which an end portion of a barrier plate supporting wire 7 fed from the winding device 4 is attached. It is supported by the plate support wire 7 in an upright state.

The barrier plate 3 has a round pipe 1 at the top of the frame member 10.
1 is provided horizontally, and a skin plate 12 made of a steel plate is attached to the upstream side of the frame material 10 and the round pipe 11. A watertight rubber 14 is attached by bolts 15 to a space formed between the bottom of the skin plate 12 and the bottom surface of the water channel 2 and a space between the side of the skin plate 12 and the side wall of the water channel 2. In addition, weir plate 3
The body part is frame material 10, round pipe 11, skin plate 1
2, the bottom plate 16 and the rear plate 17 form a water tank 18 formed in a hollow container shape. Hollow interior 1 of round pipe 11
1a and the water tank 18 communicate with each other through a plurality of through holes 20 provided on the bottom surface of the round pipe 11. A water inlet 21 is provided at the center of the upper surface of the round pipe 11. On the upstream side of the water intake port 21, a draining plate 22 having round bars 23 arranged in a grid pattern in an opening 22a is provided upright. The draining plate 22 provided on the upstream side of the suction port 21 may be formed by a plate body having no opening 22. Also,
A drain port 24 having a smaller cross-sectional area than the water intake port 21 is provided on the downstream side of the bottom of the water tank 18.

The winding device 4 includes an outer box 30 as a case.
A plurality of rotating shafts, gears and other parts are housed inside. The pulley shaft 31 provided in the central portion has a dam plate pulley 34 attached to a protruding portion protruding outside the outer box 30. An end portion of the dam plate supporting wire 7 is connected to the dam plate pulley 34 and wound in a predetermined direction. Further, a claw-shaped actuating lever 35 is integrally attached to a portion of the pulley shaft 31 inside the outer box 30. The gear 31 a of the pulley shaft 31 includes a secondary shaft 37 located on both sides of the pulley shaft 31 and gears 37 a, 3 of the pulling shaft 38.
It meshes with 8a.

A rotating frame 41 is rotatably attached to the secondary shaft 37 via a bush 40. Swivel frame 41
Consists of a pair of left and right plates, the lower end of which is fitted to the secondary shaft 37, a ratchet 44 urged downward by a plate spring 43 is provided in the middle, and a shaft 46 is supported at the upper end. Bearing 47 is provided. The rotating frame 41 is pulled in the direction of the pulley shaft 31 by a spring 48.

The gear 50a of the winding shaft 50 adjacent to the secondary shaft 37 meshes with the gear 37a of the secondary shaft. The winding shaft 50 has a tip portion 44 a of the ratchet 44.
A ratchet wheel 51 that meshes with is fitted.
In addition, the winding shaft 50 has an end portion on the opposite side of the water channel from the outer box 30
And a tip end portion thereof is a square rod portion 52 for fitting a winding handle. When a handle having a square hole is fitted into the square rod portion 52 and the winding shaft 52 is rotated in the winding direction, the pulley shaft 3 is moved in a direction in which the fallen dam plate 3 stands up.
1 rotates. It should be noted that when the ratchet 44 is meshed with the ratchet wheel 51, the hoisting shaft 50 can rotate only in the hoisting direction. The pulley shaft 3
1, secondary shaft 37, hoisting shaft 52 and weir plate pulley 34
And the like constitute a winding device (I), and the ratchet 44 and the ratchet wheel 51 constitute a locking device (II).

A disc-shaped cam 61 having a substantially fan-shaped recess 61a into which the bearing shaft 47 is fitted is provided on a cam shaft 60 provided at an intermediate portion between the pulley shaft 31 and the bearing shaft 46. It is installed. Cam 61
A cam lever 62 and a weight arm 63 are provided on the upper portion of the concave portion 61a so as to project. Both of them are bent from the middle part, and a balance weight 64 is attached to the tip of the weight arm 63. Also, cam 6
On the side surface of 1, the operating claw 6 that engages with the operation lever 35 in the previous period.
5 are attached by pins 66. Operating claw 65
Is provided in such a manner that the rear end surface 65a on the plane is brought close to the outer peripheral portion of the disk 67 provided on the cam shaft 60, and the pin 66 is provided.
It is possible to oscillate in a slight range around. And
It is normally pressed downward by the leaf spring 68. As shown in FIG. 7, a weight 69 is used instead of the leaf spring.
May be attached to the pin 66 and the operating claw 65 may be biased downward. The bearing 47, the cam 61, the cam lever 62 and the like, together with the float described later, constitute a releasing device (III) for releasing the lock. Also,
The operation lever 35, the operation claw 65, and the like are a lock reset device (IV) that resets the released lock.

A spring compression wire 70 is attached to the raising shaft 38.
Of the spring pulley 71 and the weight support wire 72
A wound pulley 73 for a weight is fitted. The free end of the spring compression wire 70 is drawn into the inside of the storage cylinder 76 that stores the compression spring 75 provided outside the outer box 30, and is connected to the regulation plate 77 provided at the tip of the compression spring 75. Has been done. The free end of the weight support wire 72 is
It is suspended in a vertical hole 79 for a weight provided vertically on the embankment, and a weight 80 for pulling up the dam plate is attached to the lower end portion thereof. These compression springs 75 and weights 80 constitute a pulling force applying means 39 for applying a force in the standing direction to the dam plate 3.

Further, a float chamber 83 is provided just below the center of the winding device 4. The float chamber 83 is connected to the water channel 2 through a through hole 84 and is filled with water having the same water level as the water channel 2. In the float chamber 83, a float 85 that moves up and down according to the change in water level is arranged.
A receiving tray 87 is provided on the upper end portion of the rod 86 attached to the float 85, and the tip end portion of the cam lever 62 is placed on the receiving tray 87.

Next, the operation of the winding device 4 will be described. During normal water storage, the weir plate 3 is supported in an upright state as shown in FIG. 3, and the water on the upstream side is little by little.
It flows over to the downstream side. At this time, in the winding device 4, as shown by the solid line in FIGS. 5 and 8, the bearing 47 of the rotating frame 41 contacts the outer peripheral surface of the cam 61, and the ratchet 44 meshes with the ratchet wheel 51. The lock device (II) is in a functioning state, and the winding shaft 51 and each shaft directly and indirectly meshing with the winding shaft 51 are restrained from rotating in one direction (direction in which the dam plate falls). There is. A part of the running water projects from the water intake port 21 protruding above the weir plate 3 to the round pipe 11 and the water tank 18.
Flows in. At the same time, the water in the tank also flows out to the downstream side from the drain port 24, but the amount of inflowing water is larger than the outflowing amount of water, so the insides of the round pipe 11 and the water tank 18 are filled with water. Therefore, the weight of the barrier plate itself, the water pressure on the upstream side, and the round pipe 11 are
The weight of the water in the water tank 18 and the weight of the water in the water tank 18 serve as the force F for overturning the barrier plate 3.

When water in the water channel increases due to a sunset or the like, the float 85 moves upward accordingly, the cam lever 62 is pushed up, and the cam 61 rotates in the A direction. Then, when the water level exceeds the falling water level, the bearing 47 fits into the recess 61a of the cam 61 as shown by the alternate long and short dash line in FIGS. 5 and 8, and the rotating frame 41 moves in the B direction by the action of the spring 48. Rotate. By the action of the release device (III), the meshing relationship between the ratchet 44 and the ratchet wheel 51 is released, and the respective rotary shafts are rotatable, the weir plate supporting wire 7 is fed out from the weir plate pulley 34, and the weir plate 3 is Fall by the force F described above. The weir plate 3 which has completely collapsed,
As shown in FIG. 4, its tip is placed on a cushion rubber 90 provided on the bottom of the water channel, and is substantially parallel to the bottom of the water channel.

When the weir plate is laid down, the water level in the water channel is lowered, and almost no water enters the round pipe 11 through the water intake port 21. Therefore, the water in the water tank 18 is gradually discharged due to the outflow from the water outlet port 24. Decrease to. Along with that, the force F ′ for keeping the barrier plate 3 in the laid state is gradually reduced.
On the other hand, the weir plate support wire 7 has a pulling force applying means 39.
Due to this, the force X for pulling up the barrier plate 3 acts. This force X is a force X _S compression spring 75 which is compressed to return to the original extended state, a sum of the weight X _P acting on the weight 80, which is wound up, the force X _S is dam 3 100 It is the maximum in the state of being laid down. When the force F ′ for keeping the laid state is smaller than the force X for pulling up, the dam plate 3 automatically stands up.

The lock reset device (IV) operates by the rotation of the pulley shaft 31 when the barrier plate is erected. That is,
The operating lever 35 of the pulley shaft 31 is connected to the operating pawl 6 of the cam shaft 60.
Since 5 is pushed up, the cam 61 rotates in the anti-A direction.
When the cam 61 rotates a certain amount or more, the balance weight 6
4, the bearing 47 has a recess 61.
It is extruded from a. As a result, the rotating frame 41 rotates in the direction opposite to the arrow B, and the ratchet 44 meshes with the ratchet wheel 51 again. Therefore, the rotary shafts are again fixed, the dam plate is supported in an upright state, and water storage is started.

Since the weir plate 3 of the overturning weir 1 is filled with water in the water tank 18 at the time of storing water, the force F for overturning is large and the overturning reliably occurs when the water level in the waterway exceeds a predetermined value. . When the barrier plate 3 is in the laid-down state, the action of the draining plate 22 prevents water from flowing into the suction port 21. In order for the collapsed weir plate 3 to stand up again, the water level of the flowing water is sufficiently lowered, the inflow of water to the water intake port 21 is stopped, and the water in the water tank 18 must be drained.
It is possible to completely discharge the increased water. Further, since there is a large difference between the force F for attempting to overturn the weir plate and the force required for raising the overturned weir plate, the force X for raising the weir plate is X.
There is a margin in the setting of, and the standing motion is reliable.

When dust or the like is entangled in the dam plate 3 so that it does not stand up automatically or when it is necessary to forcibly stand up for some reason, a square hole is provided in the square rod portion 52 of the winding shaft 50. The handle plate may be fitted and the dam plate 3 may be rolled up manually. Also in this case, since the lock reset device (IV) works and the lock device (II) is automatically reset when the handle is turned to some extent, the worker does not need to set the lock device. Since the water tank of the dam plate 3 is empty, the winding is relatively easy.

In the above-mentioned embodiment, when the water level in the waterway exceeds a predetermined water level, the water level automatically falls, and when the stored water is discharged, it automatically stands up. Needless to say, the winding device according to the present invention is also suitable for a fall weir having a structure in which a fall weir plate is manually wound.

[0021]

As described above, the device for hoisting a fall weir according to the present invention is a lock reset device that restores the locking function of the lock device for preventing the reverse rotation of the hoisting shaft due to the hoisting operation of the weir plate. Since it is equipped with a lock plate, there is no need to set the lock device each time the barrier plate is erected. In addition, it is safe because it prevents accidents caused by forgetting to set it.

[Brief description of drawings]

FIG. 1 is a front view of an overturning weir provided with a winding device according to the present invention as seen from the upstream side.

FIG. 2 is a side view thereof.

FIG. 3 is a cross-sectional view of a barrier plate.

FIG. 4 is a side view of the barrier plate when it falls.

FIG. 5 is a side view of the winding device.

FIG. 6 is a plan view thereof.

FIG. 7 is an explanatory diagram of another embodiment.

FIG. 8 is an enlarged view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Overturning weir 2 Water channel 3 Weir plate 4 Winding device 7 Weir plate support wire (I) Winding device (II) Lock device (III) Release device (IV) Lock reset device

Claims (1)

[Claims] 1. A winding device for winding a winding wire pivotally attached to an upright / invertable dam plate whose base portion is pivotally attached to the bottom of a water channel, and winding in a standing state of the dam plate. In a roll-up device for a fall weir equipped with a lock device for locking the device, and a release device for releasing the lock function of the lock device when the water level in the water channel increases to a predetermined amount or more, when the fallen weir plate is wound up, A roll-up device for a fall weir, comprising a lock reset device for returning the lock function of the lock device due to a roll-up operation.