JPS60184118A - Automation device for gate - Google Patents

Abstract

PURPOSE:To cause a door body to reliably stand upright, by a method wherein an engaging member is engaged with a second ratchet gear in a condition in which a stopper is disengaged from a first ratchet gear, and the stopper is engaged with the first ratchet gear in a condition in which the engaging member is disengaged from the second ratchet gear. CONSTITUTION:When the water level of a river is raised and buoyancy is exerted on a float 8, a stopper 23 is disengaged from a first ratchet gear 21, and the door body of a gate is rapidly fallen over. When the door body is caused to stand upright, a wire 27 is wound through control of a handle 31. In which case, since an engaging member 36 is engaged with a second ratchet gear 35 in a condition in which the stopper 23 is disengaged from a first ratchet gear 21, the handle 31 is not reversely rotated, and the engaging member 36 is disengaged from the second ratchet gear 35 in a condition in which winding of the wire 27 is completed. Further, since the stopper 23 is engaged with the first ratchet gear 21, the door body is caused to reliably stand upright in a condition in which the door body is pulled tense by means of the wire 27.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic device for gates installed in various waterways such as rivers and agricultural waterways.

BACKGROUND ART Gates are installed in various waterways such as rivers and agricultural waterways, and when the water level rises to a predetermined level, a float detects this and automatically overturns or lowers the gate body. This type of gate is generally constructed by connecting a gate body rotatably or vertically installed in a waterway to a type gear connected to an operating handle via wires, ranks, etc. until the water level reaches a predetermined level. When the float rises to the surface, the stopper that is interlocked with the float and engages with the mold gear is disengaged from the mold gear, and the door body is caused to fall onto the river bed due to the rotational moment due to its own weight and backwater pressure. , or allowed to fall due to its own weight. Conventionally, when raising or raising a door body that has fallen or fallen in this way, the door body is raised or raised by operating the handle, winding up a wire, etc., and then the stopper is manually inserted into the mold. It was designed to engage a gear to prevent the door body from falling or falling. However, the work of engaging the stopper with the pawl gear in this way is quite troublesome, partly because the stopper and the pawl gear are generally arranged in a relatively small box, and it is difficult for an inexperienced person to carry out the above-mentioned work. There were problems such as the risk of injury to hands and fingers when doing so. Furthermore, there has been a strong desire to develop an automatic locking device, especially for gates whose gates are raised and lowered by remote control using a motor or the like.

In consideration of the above points, the present invention provides an automatic system that automatically engages the stopper with the pawl gear when the operating handle is operated to raise or raise the door body that has fallen or fallen onto the riverbed. This device is made for the purpose of providing a device, which is provided with a second pawl gear that rotates in conjunction with the pawl gear, and the stopper is attached to a rotating member that rotates as the water level detection float rises. Separating from the second pawl gear in a state where the stopper is engaged with the pawl gear to prevent the door body from falling or falling;
The rotating member is provided with a retaining member that engages with the second pawl gear when the stopper is detached from the pawl gear and the door body is overturned or descended. When rotating the pawl gear in the direction of raising or raising the door body by operating the operation handle and increasing the winding number of the wire, the engaging member is engaged with the second pawl gear to rotate the pawl gear. Rotate the parts,
The stopper is automatically engaged and locked with the pawl gear. The present invention will be described in detail below with reference to the drawings, taking an undulating gate as an example.

Fig. 1 is a front view of the undulating gate according to the present invention, and Fig. 2 is a side view, in which 1 is a gate body rotatably installed in a river, and side walls 2 are fixedly installed on both sides of the river. It is located between .3 and 3. The door body 1 is pivotally supported by a rotating shaft 5 of a pedestal 4 fixed on the river bed, and rotates around the rotating shaft 5 to rise and fall. 6 is a reinforcing drum attached to the upper part of the door body 1.

Reference numeral 7 denotes a box body disposed on the side wall 2, and an automatic device for automatically overturning the door body 1, which will be described in detail later, is disposed within the box body 7. Reference numeral 8 denotes a float for water level detection arranged in a space 9 formed inside the side wall 2. When river water flows into the space 9 through the water inlet 10, the float 8 rises due to buoyancy. The automatic device is activated and the door body 1 is overturned.

Next, the automatic device disposed inside the box 7 will be explained with reference to FIGS. 3 to 6.

11 is a plywood attached to the inner wall surface of the box body 7,
The tip of the rotary plate 12 is placed on the upper surface of the base plate 11. The rear end of the rotary plate 12 is supported by a long rod 13 that projects from the float 8, and when the float 8 rises, the rotary plate 12 pivots around its tip as a fulcrum, as shown by the chain line in FIG. Rotate. 39 is a rotating plate 12 attached to the long rod 13
The support member 33 and 34 at the rear end are pull-out stops.

Reference numeral 15 denotes a first rotating member disposed below the rotating plate 12, and its rear end is rotatably supported by a pin 16 on a base plate 17 attached to the inner wall surface of the box body 7. . 1
Reference numeral 8 denotes a second rotating member serving as a rotation preventing member that prevents the pawl gear 21 (described in detail later) from rotating in the door body falling direction, and the lower tip thereof is connected to the first rotating member by a pin 19. 1
5 is rotatably connected. Further, the upper end of the rotating member 18 is connected to the rotary plate 12 via a connecting rod 20. Therefore, when the float 8 rises and the rotating plate 12 rotates as shown by the chain line in FIG.
8 is pulled up to the connecting rod 20, and both rotating members 15 and 18
rotates as shown by the chain line in FIG.

21 is a first pawl gear attached to the winding shaft 22, and a stopper 23 is engaged with the pawl gear 21. The stopper 23 is attached via a spring plate 24 to a rotating member 25 made of a single plate-shaped body. Further, a locking portion 18a formed in a notch at the rear of the second rotating member 18 is engaged with a side portion of the rotating member 25, and the rotating member 25 is moved in the direction of arrow C by the rotational force of the mold gear 21. The stopper 23 is rotated to prevent the stopper 23 from separating from the mold gear 21. Further, the lower surface of the rear end portion 18b of the rotating member 18 is configured so that the locking portion 18a can be detached from the side portion of the rotating member 25 with high sensitivity when the rotating member 18 rotates to the position indicated by the chain line in FIG. It has a smooth tapered surface. 32 is a rotating shaft of the rotating member 25 which is pivotally attached to the side end of the rotating member 25. As shown in FIG. S) When the y par 23 is engaged with the mold gear 21, it can be bent downward as shown by the chain line in FIG. 5 due to the flexibility of the spring plate 24.
1 is the direction in which the door body 1 is rolled up (arrow a in FIG.
However, it prevents the door body 1 from rotating in the direction of overturning (the direction indicated by the arrow in FIG. 5). Reference numeral 26 denotes a wheel for winding the winding wire 27, which is connected to the winding shaft 22 via rotating wheels 28, 29 and a chino 30, and rotates together with the winding shaft 22 to wind up or unwind the wire 27. . Further, the tip of the wire 27 is attached to the door body 1. The door body 1 is constantly subjected to a force in the direction of overturning due to the rotational moment due to its own weight and backwater pressure, and therefore the wire 2
The mold gear 21 connected to the door body 1 through the gear 7 is constantly receiving a force that rotates the door body l in the direction of overturning (in the direction indicated by the arrow), but this rotation is prevented by the stopper 23 and the door body 1 is rotated. It prevents l from falling over. 31 is the winding shaft 22
- an operating handle connected to the handle 31;
is operated to wind up the wire 27, and the door body 1 which has fallen down on the riverbed is erected.

35 is a second mold gear disposed coaxially with the first mold gear 21, and the mold gear 35
The diameter of the mold gear 21 is slightly smaller than that of the mold gear 21, and rotates together with the mold gear 21. 36 is the rotating member 25
A retaining member made of a spring material is attached to the side end on the rotating shaft 32 side, and is engaged with and detached from the second type gear 35. That is, in a state where the stopper 23 engages with the first mold gear 21 and prevents the mold gear 21 from rotating in the direction of overturning the door body 1, the engaging member 36
The tip is not engaged with the second type gear 35 and allows rotation of the door body 1 in the winding direction (direction indicated by the arrow).
(See the solid line in the figure), as described above, the float 8 floats up, the engaging portion 18a of the rotating member 18 is disengaged from the rotating member 25, and the rotating member 25 rotates in the direction of arrow C around the rotating shaft 32 to open the door. When the body 1 falls onto the river bed, the retaining member 36 also rotates around the rotating shaft 32.
The tip of the engaging member 36 engages with the mold gear 35 by rotating around the center. (See the chain line in Figure 6). Further, when the handle 31 is operated to wind up the wire 27 and the mold gear 21.35 is rotated in the direction of raising the door body 1 (in the direction of arrow a), the engaging member 36 that engages with the mold gear 35 is With the rotation of 35, the direction d opposite to the direction of the arrow C above is rotated around the rotation axis 32.
At the same time, the rotating member 25 also rotates in the direction of the arrow d, and the stopper 23 automatically engages with the mold gear 21 again to prevent the door body 1 from rotating in the falling direction. The retaining member 36 is again separated from the mold gear 35 (see solid line in FIG. 6). 37 is a blocking member that defines the rotation limit of the rotating member 25 in the direction of arrow C. In this way, the present device has the second type gear 35 and the engagement member 36 as described above.
Therefore, when operating the handle 31 to raise the door body 1 that has fallen down on the riverbed, the rotating member 25 rotates in the direction of arrow d to automatically move the stopper 23 to the mold gear 21.
can be engaged with.

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

Normally, the door body 1 stands up as shown by the solid line in FIG. 2 to block the river. In this state, the stopper 23 engages with the first mold gear 21, and prevents the mold gear 21 from rotating in the direction indicated by the arrow in FIG. 5, thereby preventing the door l from falling over. Further, in this state, the retaining member 36 is not engaged with the second type gear 35. When the water level of the river rises, the river water enters the space 9 through the water inlet 10, and the float 8 rises due to buoyancy. Then, the long rod 13 rises and the rotating plate 12 rotates to the position indicated by the chain line in FIG. Then, the rotating members 15 and 18 are connected to the connecting rod 2.
0, and the engaging portion 18a of the rotating member 18 separates from the rotating member 25. Then, the rotating member 25 is rotated in the direction of arrow C by the rotational force of the mold gear 21, and the stopper 23 is removed from the mold gear 21.

Then, the mold gear 21 becomes in a state where it can freely rotate, the door body 1 falls over due to the rotational moment due to its own weight and the action of water pressure, and the river water flows downstream (see the chain line in FIG. 2). In this state, the tip of the retaining member 36 is retained on the second type gear 35. In the above operation, the rotary plate 12 and the rotary member 18 rotate according to the principle of leverage, so that they can be rotated with a slight force. Further, since the lower surface of the descending portion 18b of the rotary plate 18 is a smooth tapered surface, it can rotate smoothly while being in contact with the upper surface of the rotary member 25. Therefore, according to this device, even if the float 8 receives only a slight buoyancy force, the rotating member 18
The engaging part 18a easily separates from the rotating member 25, and the mold gear 21 rotates in the direction of overturning the door body 1 (in the direction of the arrow), so when the water level of the river rises to a predetermined level, Upon detection, the door body 1 quickly falls over. Also door body 1
When raising the wire 2, operate the handle 31
7 and rotate the mold gears 21.35 in the direction of arrow a, the door body 1 is pulled by the wire 27 and stands up.

At this time, the tip of the engaging member 36 is engaged with the mold gear 35, so as the mold gear 35 rotates, the rotating member 25 rotates about the rotating shaft 32 in the direction of arrow d, and the stopper 25 rotates in the direction of arrow d.
3 engages with the mold gear 21 again to prevent the mold gear 21 from rotating in the direction in which the raised door body 1 falls, that is, in the direction indicated by the arrow.

The present invention can be modified in various ways other than the above-mentioned embodiments. For example, the rotating member 25 is formed of a single plate-shaped body, and the stopper 23 and the retaining member 36 are attached to this. However, the shape and structure of the rotating member is not limited to this. For example, the rotating member may be composed of a plurality of members and a stopper or an engaging member may be attached to each member. Any device may be used as long as the stopper can be automatically engaged with the first mold gear when the door body is operated to stand up or rise. Furthermore, both claw gears 21 and 35 may be integrally formed. Furthermore, although the above embodiments have been explained using an example of an undulating type gate, the present invention can also be applied to an elevating type gate that opens and closes a waterway by raising and lowering the door body.

As explained above, the automatic gate device according to the present invention includes:
A door body 1 rotatably grounded in a waterway and an operating handle 3
1 and connected to the door l, and a rotating member 25 that rotates as the water level detection float 8 rises. In the gate, the stopper 23 that engages with the first mold gear 25 is separated from the mold gear 21 as the rotating member 25 rotates.
A second mold gear 35 is provided which rotates with the first mold gear 35, and the stopper 23 is disengaged from the second mold gear 35 while being engaged with the first mold gear 21, and the stopper 23 is disengaged from the second mold gear 35 while being engaged with the first mold gear 21. Since the rotating member 25 is provided with a retaining member 36 that engages with the second type gear 35 in a state separated from the gear 21, it is possible to raise or raise the door body that has fallen or fallen onto the riverbed. , the stopper can be automatically engaged with the first type gear.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a front view of the gate, Fig. 2 is a side view, Fig. 3 is a perspective view of the automatic device, and Figs. 4 and 5 are partial side views. FIG. 6 is a partial plan view. l... Door body 8... Water level detection float 21... First type gear 23... Stopper 25... Rotating member 31... Operating handle 35... Second type gear 3
6... Retaining member Fig. 4 Fig. 5 Fig. 6

Claims (1)

[Claims] There is a gate body installed in the waterway, a first type gear connected to the operation handle and connected to the gate body, and a rotating member that rotates as the water level detection float rises, and is attached to the rotating member. a second mold gear that rotates together with the first mold gear in a gate configured to cause a stopper that is engaged with the first mold gear to be separated from the first mold gear as the rotating member rotates; and the stopper is disengaged from the second type gear while being engaged with the first type gear, and the stopper is disengaged from the second type gear while being disengaged from the first type gear. An automatic device for a gate, wherein an engaging member is provided on the rotating member.