JPH0328524B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an automatic gate installed in a waterway,
The door body is automatically overturned or lowered by either electrical means or mechanical means.

(Prior Art and Problems to be Solved by the Invention) Some gates are installed in waterways such as rivers and agricultural waterways, and have a gate body installed on a river bed so that it can rise and fall freely or rise and fall. Furthermore, when the water level of the waterway rises to the planned water level, the automatic operating device that automatically overturns or lowers the gate body to open and close the waterway can be either mechanical or electrical. be. However, none of these systems has sufficient reliability and has the problem of not always operating normally due to equipment failures, power outages, etc.

Therefore, the present invention provides an automatic actuation device that combines electrical means and mechanical means.
To provide an automatic gate capable of surely operating a gate body if the water level of a waterway rises.

(Means for Solving the Problems) The present invention includes a door body 1, 65 that opens and closes a waterway, a switch part 7 that detects the water level of the waterway, and a switch part 7 that is activated when the water level of the waterway rises and the switch part 7 is activated. a motor M that is driven by the motor M, and a first door body that is driven and operated by the motor M to release the operation blocking state of the door bodies 1, 65, and causes the door bodies 1, 65 to fall over and lower due to their own weight. Activation blocking means 14, 5
0, and when the water level detection float 4 rises to the surface, the buoyancy of the float 4 releases the operation blocking state of the door bodies 1, 65, and the second door causes the door bodies 1, 65 to fall and descend under their own weight. Body movement prevention means 1
8 and 19, and the door bodies 1 and 65 are overturned and lowered either by the operation of the switch part 7 or by the floating of the float 4.

(Function) In the above configuration, when the operating water level of the switch section 7 is lower than the operating water level of the float 4, the switch section 7 is operated first due to the rise in the water level, and the motor M
By driving, the door operation blocking state by the first door operation blocking means 14, 50 is released, and the door bodies 1, 65 are overturned or lowered to open and close the water level.

Even if the water level rises, the motor M may not be driven and the door body 1, 65 may not operate due to a power outage, equipment failure, or the like. In this case, as the water level further rises, the float 4 floats up, and its buoyancy releases the door operation blocking state by the second door operation prevention means 18, 19, causing the door bodies 1, 65 to fall or descend. to open and close the waterway.

Contrary to the above case, when the operating water level of the float 4 is lower than the operating water level of the switch section 7, the door bodies 1 and 65 are first activated by the second door operation prevention means 18 and 19. falling, descending,
If the door bodies 1, 65 do not fall or fall due to a failure or malfunction of the second door operation prevention means 18, 19, the water level further rises, and the switch part 7 is activated. Door body operation prevention means 1
4 and 50, the door bodies 1 and 65 are overturned and lowered.

In this way, according to the above configuration, even if either the electrical means or the mechanical means fails, the door body 1, 6
5 can be reliably overturned or lowered.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a front view of an automatic gate according to the present invention, and FIG. 2 is an exploded view, in which 1 is a gate body, and this gate body 1 is pivoted on a riverbed 2 via a hinge part 3 so as to be freely undulating. It is supported and rotates around the hinge part 3 to rise and fall. Reference numeral 4 denotes a water level detection float, which is disposed in a space 6 formed in the side wall 5. When the water level of the waterway rises and the water level enters this space 6, it rises due to its buoyancy. Reference numeral 7 denotes a switch section consisting of a reed switch disposed within the space 6, which is activated when the water level of the waterway rises to drive a motor M (described later), the details of which will be described later.

Reference numeral 8 denotes a winding wire, which is tied to a sheave 9 connected to the side of the door body 1. One end thereof is attached to a stop 10 (see FIG. 2) provided on the side wall portion 5, and the other end is wound around a drum 11. In Figure 1, 1
Reference numeral 2 denotes a box installed on the upper surface of the side wall portion 5, and an automatic operating device 13 is housed within this box 12.

In FIG. 2, reference numeral 14 denotes a first door operation blocking means constituting the automatic operating device 13, and a sliding body 14 is attached to a rotating shaft 141 driven by a motor M.
2 and a circular wall portion 143 are attached thereto. Also, between the sliding body 142 and the circular wall portion 143, the gear 1
44 is interposed.

A threaded portion 142a is formed on the inner peripheral surface of the sliding body 143, and this threaded portion 142a is connected to the rotating shaft 14.
It is screwed into a threaded portion 141a formed in 1.
Therefore, when the motor M rotates forward in the direction of arrow a, the sliding body 143 slides in the direction of arrow A and gear 1
44 is strongly sandwiched between the sliding body 142 and the circular wall portion 143, and the gear 144 is driven by the motor M to rotate the circular wall portion 1.
43 and the sliding body 142 in the direction a. Also, when motor M rotates in the opposite direction in the direction of arrow b,
The sliding body 142 slides in the direction of arrow B, and the gear 144
is in a neutral state in which it can freely rotate between the sliding body 142 and the circular wall portion 143.

142b is a gear portion formed at the end of the sliding body 142, and this gear portion 142b has a gear 15.
are meshing. The rotating shaft 16 of this gear 15 is
It is connected to the rotating shaft 17 of the drum 11,
The drum 11 therefore rotates together with the gear 15.

Reference numeral 18 is a pawl gear, with which a stopper 19 is removably engaged. 20 is a rotating plate, and the stopper 19 is connected to this rotating plate 2 via a leaf spring 21.
attached to 0. While the stopper 19 is engaged with the pawl gear 18, the pawl gear 18 is allowed to rotate in the direction of uprighting the door body 1 (in the direction of arrow c), but it is allowed to rotate in the direction of the door body 1 falling (arrow d). direction). That is, pawl gear 1
8 and the stopper 19 constitute a means for preventing second door operation.

The rear end of the rotary plate 20 is connected to the support plate 2 by a pin 22.
3 is rotatably supported. Reference numeral 24 denotes a locking plate, the distal hook portion 24a of which is removably engaged with the rotary plate 20, and the rear end portion of which is rotatably attached to the connecting plate 25 via a pin 26. There is. The connecting plate 25 is rotatably attached to the support plate 27 by a pin 28 .

The rear end portion of the locking plate 24 is supported by a long rod 29. Reference numeral 30 denotes a rotating plate disposed on the support plate 31 (see also FIG. 3), which is connected to the long rod 29.
The upper end is attached to the tip of the rotating plate 30, and the float 4 is connected to the rear end of the rotating plate 30 via a long rod 33.

Normally, the hook portion 24a of the locking plate 24 is engaged with the rotary plate 20, and prevents the rotary plate 20 from rotating in the direction of arrow e in FIG. , when the float 4 rises due to the buoyancy of the water that has entered the space 6, the rotating plate 30 is moved by the long rod 33.
The engagement plate 24 is pushed up by the long rod 29 and rotates around its tip in the direction of arrow f (see Fig. 3).
The hook portion 24a is pulled up and separated from the rotary plate 20. Then, the rotary plate 20 rotates in the direction of the arrow e due to the force received from the pawl gear 18, the stopper 19 separates from the pawl gear 18, and the pawl gear 18 becomes rotatable in the direction in which the door body 1 falls (in the direction of the arrow d). , the door body 1 overturns due to its own weight and backwater pressure.

34 is a sprocket attached to the rotating shaft 35 of the pawl gear 18, and is connected to a sprocket 37 via a chain 36. A rotating shaft 38 of the sprocket 37 is connected to a rotating shaft 40 of a gear 39 that meshes with the gear 144. 41 is a bearing.

FIG. 4 shows a drive circuit for the motor M, in which 41 is a power supply section, 7a and 7b are contacts of the switch section 7, and 42a and 42b are manual switch section 42.
The contacts 7a, 7b and the contacts 42a, 4
2b are opened and closed in conjunction with each other. As the power supply unit 41, in addition to a commercial power supply, it is also possible to use a solar battery or the like.

60 is a limit switch for stopping the drive of the motor M when the door body 1 is completely laid down on the river bed 2. Normally, the drive circuit of the motor M is open and the motor M is stopped, but as will be explained in detail later, the water level of the waterway rises and the contacts 7a,
When 7b is turned on, a positive current Ia flows through the motor M, causing the motor M to rotate in the forward direction, thereby overturning the door body 1 in the up-and-down state. Also, operate the manual switch 42 to
2a and 42b are turned on, a reverse current Ib flows and the motor M rotates in the reverse direction, causing the door body 1 to fall down on the riverbed 2.
pull up. In this embodiment, the operating water level of the door body 1 by the switch part 7 is lower than the operating water level of the door body 1 by the float 4, and before the float 4 floats up and the stopper 19 separates from the pawl gear 18, each contact 7a , 7b are input.

This device has the above-mentioned configuration, and its operation will be explained next.

First, when the door body 1 is upright, the stopper 19 is engaged with the pawl gear 18. In this state, the gear 39 connected to the pawl gear 18 is in a rotation-prevented state. Now, when the water level of the water channel rises and water enters the space 6, the contacts 7a and 7b of the switch section 7 are closed. Then, a reverse current Ib flows, and the motor M rotates in the reverse direction in the direction of arrow b. Then, the sliding body 142 slides in the direction B, the gear 144 becomes free, and the coupling state between the first door operation blocking means 14 and the pawl gear 18 is released. Then, the sliding body 142 also becomes free, and the sliding body 14 is moved through the drum 11.
The door body 1 connected to the door body 2 rotates around the hinge part 3 due to its own weight and backwater pressure and falls over. At this time, the wire 8 is unwound and the drum 11 rotates in the g direction.

Then, the rotation is transmitted to the gear 15 via the rotating shafts 17 and 16, and the gear 15 rotates in a direction to slide the sliding body 142 in the direction of arrow A. Then, the sliding body 142 is pressed against the gear 144 again, and the gear 1
44 is integrally connected to the sliding body 142 and the circular wall portion 143, and rotation of the sliding body 142 is prevented. Then, the gear 15 also stops rotating, and the drum 11 moves as shown by the arrow g.
Rotation in this direction becomes impossible, and the door body 1 stops falling.

However, since the motor M is still rotating in the direction b, the sliding body 142 again slides in the direction of arrow B and becomes free, and the door body 1 falls again in the same manner as above, and the wire 8 is wound. Drum 11 returned
rotates in the direction of arrow g. Then, the sliding body 142 slides in the direction of arrow A in the same manner as described above, and is pressed against the gear 144 again. After that, the same operation as above was repeated, and the door body 1 gradually fell onto the river bed 2.
Finally, the limit switch 60 is opened and the motor M stops driving. As described above, in this device, the sliding body 142 and the pawl gear 18 are rotated by the reverse rotation of the motor M.
By repeatedly and instantaneously releasing the connected state, the door body 1 is gradually overturned.

When raising the door body 1 that has fallen on the riverbed 2, operate the manual switch 42 to close each contact 42a,
Insert 42b. Then, a positive current Ia flows and the motor M rotates in the direction of arrow a. Then the sliding body 14
2 slides in the direction of the arrow A and is pressed against the gear 144, and in that state rotates in the direction a. Then, the drum 11 rotates in the h direction, the wire 8 is wound up, and the door body 1 stands up.

As mentioned above, the door body 1 is overturned by the operation of the motor M, but even if the water level rises due to a power outage or equipment failure, the door body 1 is overturned by electric means such as the motor M.
may not be able to fall. In such a case, as the water level further rises, the float 4 floats up, and the stopper 19 is moved by the pawl gear 18 due to its buoyancy.
The claw gear 18 becomes free. Then, the door body 1 overturns due to its own weight and backwater pressure.

At this time, the wire 8 is rewound and the drum 11 rotates in the direction of arrow g, and along with this, the sliding body 142,
The circular wall portion 143 and the gear 144 rotate together in the door body falling direction (ie, in the direction of arrow b). In this manner, according to the present device, even if the door body 1 cannot be tipped over due to a power outage or equipment failure, the stopper 19 is moved to the pawl gear 18 by the operation of the float 4.
It is possible to reliably overturn the door body 1 by separating it from the door.

(Other Embodiments) FIG. 5 shows another embodiment of the present invention, in which reference numeral 50 denotes door operation prevention means disposed in place of the first door operation prevention means 14. , a differential gear section 51.

FIG. 6 is an exploded perspective view of the differential gear section 51, showing an external gear 52, three internal gears 53 mounted inside the external gear 52, and an external gear meshed with the internal gear 53. It consists of a bevel gear 54, a bevel gear 55, etc., which are attached to both sides of the gear 52. The differential gear section 51 itself is well known.

The bevel gear 54 is connected to a rotating shaft 56 of a forward/reverse motor M, and the rotating shaft 57 of the bevel gear 55 is connected to a gear 58. This gear 58 is gear 3
The external gear 52 is connected to the drum 11 via a gear 15. In FIG. 5, parts common to the first embodiment, such as the rotating plate 20, the locking plate 24, and the float 4, are omitted.

In the above configuration, the stopper 19 is engaged with the pawl gear 18 when the door body 1 is upright. In this state, the gear 3 connected to the pawl gear 18
9, 58 and the bevel gear 55 are in a rotation-blocking state.

Now, when the water level of the water channel rises and water enters the space 6, the contacts 7a and 7b of the switch section 7 are closed. Then, a reverse current Ib flows, and the motor M rotates in the reverse direction in the direction of arrow b. Then, the external gear 52 also rotates in the same direction b together with the bevel gear 54. The rotation of the external gear 52 is transmitted to the drum 11 via the gear 15 etc., the drum 11 rotates in the g direction, the wire 8 is rewound, and the door body 1 is gently tipped over. Door body 1
When it is completely collapsed, the limit switch section 60 is turned off and the motor M stops driving.

When pulling up the door body 1 that has fallen onto the river bed 2, operate the manual switch 42 to close each contact 42a,
Insert 42b. Then, a positive current Ia flows and the motor M rotates in the direction of arrow a. Then drum 11
rotates in the h direction, the wire 8 is wound up, and the door body 1 stands up.

If the door body 1 cannot be tipped over by the above-mentioned electrical means even if the water level rises due to a failure of the motor M or equipment, etc., the water level rises further and the float 4 floats up, and the stopper 19 moves to the pawl gear 18. depart from. Then, the pawl gear 18 becomes free. Then, the bevel gear 55 and the external gear 52 become free, and the door body 1 falls down due to its own weight and backwater pressure.

In this embodiment, the door body 1 is raised and lowered by the output of the external gear 52 via the gear 15, etc., but the external gear 52 is connected to the motor M via the small-diameter internal gear 53, and is decelerated. Since it rotates slowly, it has a large rotational force, and therefore the heavy door body 1 can be raised and lowered slowly and reliably with a large force.

The present invention is not limited to the above-mentioned embodiments, and various design modifications are possible.For example, when the water level of a waterway rises, the invention is an automatic lifting type that disengages the stopper from the pawl gear and lowers the door body. This can also be applied to gates. In that case, as shown in FIG. 7, the pinion 67 that engages with the rack rod 66 erected on the elevating door body 65 may be connected to the gear 15, and the drive circuit of the motor M may also be a well-known forward/reverse drive. It can be easily constructed by applying circuits. Furthermore, the operating water level of the switch section 7 is set higher than the water level at which the stopper 19 separates from the pawl gear 18 due to the floating of the float 4, and the door body is normally operated by mechanical means such as the stopper 19. The door body may be operated by electrical means such as the switch section 7 or the motor M when the automatic means is malfunctioning.

(Effects of the Invention) As explained above, the present invention comprises an electric door operation prevention means and a mechanical door operation prevention means, so if either means does not operate due to a failure or the like. However, since the other means operates, the door body can be reliably overturned and lowered when the water level of the waterway rises.

[Brief explanation of drawings]

The figure shows an embodiment of the present invention.
The figure is a front view of the automatic gate, the second figure is an exploded view, and the third figure is a front view of the automatic gate.
The figure is a partial side view, Figure 4 is a motor drive circuit diagram,
FIG. 5 is an exploded view of another embodiment of the present invention, FIG. 6 is an exploded view of a differential gear, and FIG. 7 is a partial side view of still another embodiment. 1, 65... Door body, 4... Float, 7... Switch portion, 14, 50... First door operation blocking means, 18, 19... Second door operation blocking means, M
……motor.

Claims (1)

[Claims of Claims] 1. A door body that opens and closes a waterway, a switch part that detects the water level of the waterway, a motor that is driven when the water level of the waterway rises and the switch part is activated, and a motor that is driven by this motor to operate. As a result, when the first door operation prevention means releases the operation prevention state of the door body and causes the door body to overturn and descend due to its own weight, and when the water level detection float floats up, the buoyancy of this float causes the above-mentioned Release the door block from operating,
A second door operation prevention means for overturning and lowering the door body by its own weight is provided, so that the door body can be overturned and lowered by either the operation of the switch section or the floating of the float. An automatic gate characterized by: