JPH1121861A - Water shutoff structure and push-in device for stop-log plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To depress a stop-log plate despite light in the weight till the required position certainly and establish a certain sealing performance. SOLUTION: A water shutoff structure has a stop-log plate 2 guided and retained by a guide wall 1, which is equipped with a push-in device 5 to push in the stop-log plate 2 downward with the aid of a threaded shaft 4. The push-in device 5 is fitted with a frame 6 to be attached to the guide wall 1, and the shaft 4 is fitted in a nut 10 furnished on the frame 6 in such a way as capable of advancing and retreating in the vertical direction, wherein the nut 10 is installed over the plate 2 guided and retained by the guide wall 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-blocking structure for blocking a water channel such as a sewerage facility or an agricultural waterway facility, and a device for pushing a corner drop plate used in the water-blocking structure.

[0002]

2. Description of the Related Art In sewerage facilities, agricultural waterway facilities, cultivation and fishery facilities, etc., whether maintenance, inspection, or repair of facilities is performed with the treatment layer or waterway of each facility empty,
Alternatively, for the purpose of, for example, adjusting the amount of water in the irrigation canal, the canal is blocked by a corner drop plate stacked at a required height. The corner drop plate is inserted into a vertical guide groove provided on a wall surface of a water channel for damming, and a plurality of sheets are laminated to form a water-blocking wall having a required height. In the state in which the impermeable wall is configured as described above, conventionally, the top corner drop plate is fixed with a wedge or the like to secure the sealing property between the corner drop plate and the ground or between the respective drop plates. Was.

[0003]

In the case where a corner dropping plate is constructed in a state where water does not exist in the water channel, the above-mentioned wedges are used because each corner dropping plate is pressed by its own weight. Can secure sufficient sealing properties. However, when the corner drop plate is constructed in a state where water is present in the water channel, the following problem occurs. In other words, in recent years, lightweight angled boards made of synthetic wood or synthetic resin have been widely used, and many of them have a specific gravity of 1 or less. In the case of such a lightweight corner drop plate, if water exists in the water channel, the corner drop plate floats on the water and does not fall to a required position.

[0004] Even if the specific gravity is 1 or more, a buoyancy proportional to the volume of the angle-dropping plate acts, so that the crimping force between the angle-dropping plates becomes extremely small, and a required sealing property is secured. Can not do it. Therefore, the present invention provides a water-blocking structure and a device for pushing in a corner dropping plate that can surely push down the dropping plate even when water is present in the water channel and can secure a required sealing property. Aim.

[0005]

Means for Solving the Problems In order to achieve the above object, the present invention has taken the following technical means. That is, the present invention is characterized in that, in the water-blocking structure having the angle drop plate guided and held by the guide wall, a pushing device for pushing the angle drop plate downward by the screw shaft is provided on the guide wall. By this means, the angle drop plate guided by the guide wall can be forcibly pushed down by the screw shaft of the pushing device, and secures a reliable sealing property even in a state where water exists in the water channel. obtain. In addition, since the push-in operation is performed by the screw shaft, a necessary pushing stroke can be easily secured by setting the axial length of the screw shaft.

The pushing device has a frame attached to a guide wall, and a screw shaft is screwed to a nut provided on the frame so as to be able to move up and down in a vertical direction. The screw shaft may be configured to be disposed above the drop plate, and further, a lower end of the screw shaft may be provided with a contact portion that comes into contact with a corner drop plate or a spacer disposed above the angle drop plate. it can. According to such a configuration, a large pressing force can be applied to the angle drop plate by the axial force of the screw shaft, even though the structure is simple, and even if water is present in the water channel, the angle drop is reliably performed. The sealing plate can be pushed down to secure the sealing property.

Further, the frame includes a main body having a substantially U-shape in plan view so that the angle drop plate can be inserted from above, and a screw shaft support having a nut portion. It can be configured to be attached to the main body so that the posture can be changed to a posture where the angle drop plate can be inserted into the wall. According to this configuration, if the posture of the screw shaft support is changed, the nut portion is removed from above the corner dropping plate guided and held by the guide wall, and the upper side of the corner dropping plate is opened. It is possible to insert and remove the corner drop plate on the wall and remove the work.Also, while ensuring the sealing performance with the screw shaft, the height of the impermeable wall composed of multiple It is possible to speed up the work of removing the corner drop plate being constructed.

The frame may include a main body, and a pair of hinges connected to the main body so as to be openable and closable. When the nut is connected in an overlapping manner with the pair of hinges closed. And the upper space of the corner drop plate guided and held by the guide wall can be opened by opening the pair of hinge portions. According to such a configuration, when the pair of hinge portions are opened, the nut portion is removed from above the corner drop plate guided and held by the guide wall, and the upper portion of the corner drop plate is opened. It is possible to insert and remove the angle drop plate into and out of it, while maintaining the sealing performance with the screw shaft, while adjusting the height of the impermeable wall composed of multiple It is possible to speed up the work of removing the corner drop plate being constructed.

[0009]

1 and 2 show a water-blocking structure according to a first embodiment of the present invention, in which a corner drop plate 2 (a bypass plate) guided and held by left and right guide walls 1 is shown. ), And is provided in the middle of the waterway. In addition, the guide wall 1 may be constituted by a part of the side wall of the water channel. Various types of materials such as natural wood, synthetic wood, synthetic resin and the like can be used as the corner drop plate 2, but it is preferable to use a corrosion-resistant plate material. As the corrosion-resistant plate material, for example, a foam obtained by reinforcing a resin to be a hard foam with long glass fibers (for example,
If Sekisui Chemical Co., Ltd. product name "Eslon Neo Lumber FFU") is used, each foam and the skeleton or the foams can be easily joined by bolts and nuts or an adhesive.

As the resin to be used as the hard foam, a hard urethane resin, an unsaturated polyester resin or an epoxy resin is used. As the fiber for reinforcing the resin, it is most recommended to use not only glass fiber but also inorganic fiber such as carbon fiber, metal fiber and ceramic fiber and organic fiber such as aromatic polyamide fiber. The form of the fiber is
The form of long fibers such as yarn, cloth, roving, roving cloth and cross mat is suitable, but if necessary, short fibers such as chips and middle fibers and hollow fillers such as shirasu balloons can be used in combination. Up and down guide grooves 3 are formed in the left and right guide walls 1. The guide groove 3 is open upward, and the left and right ends of the corner drop plate 2 can be inserted into the groove 3.

The right and left guide walls 1 are provided with push-in devices 5 for pushing the angle drop plate 2 downward with the screw shafts 4, respectively. The pushing device 5 may be provided only on one of the right and left guide walls 1. The pushing device 5 includes a frame 6 that is detachably attached to and fixed to the guide wall 1. In this embodiment, the frame 6 is made of a steel plate, is formed in a gate shape straddling the groove 3 back and forth, and has a support piece 7 having a nut portion 10 to which the screw shaft 4 is screwed, and front and rear ends of the support piece 7. It has a leg piece 8 extending vertically downward from the part, and a mounting piece 9 extending forward and backward from the lower end of the leg piece 8.
An anchor bolt 11 is provided on the guide wall 1 at the front and rear sides of the groove 3.
The mounting pieces 9 are fastened and fixed to the bolts 11 by appropriate fastening means.

One of the means for fastening the mounting piece 9 to the bolt 11 is a wing nut 12, which can be easily and quickly tightened and loosened by manual operation. Also,
Anchor bolt insertion holes 13 formed in the mounting piece 9 on the side fastened by the wing nut 12 are open on one of the left and right sides so that the frame 6 can rotate about the axis of the anchor bolt 11 on the other side. I have. According to this configuration, the upper portion of the corner dropping plate 2 guided and held by the guide wall 1 can be opened by slightly loosening the wing nut 12 and rotating the frame 6, and in this state, the corner dropping plate 2 can be opened. Can be additionally inserted and extracted. The opening direction of the anchor bolt insertion hole 13 may be either left or right. However, if the left and right outer sides are opened, the frame 6 can be turned left and right inward, and the lower end of the screw shaft 4 is guided by the guide wall. Since no collision occurs, the frame 6 can be rotated even when the screw shaft 4 is lowered.

The nut portion 10 is formed by fixing a nut to the support portion 7 of the frame 6, and the guide wall 1 is provided.
Are located vertically above the left and right ends of the corner drop plate 2 guided and held by the guide groove 3. The screw shaft 4 is screwed to the nut portion 10 so as to be able to advance and retreat in the vertical direction. A handle 1 for rotating the screw shaft 4 is provided near the upper end of the screw shaft 4.
5 are attached. Also, at the lower end of the screw shaft 4,
A contact portion 16 is provided which comes into contact with the upper end of the corner drop plate 2 or the upper end of a spacer (not shown) disposed above the corner drop plate. The contact portion 16 is rotatably attached to the screw shaft 4. Further, it is preferable that the abutting portion 16 is detachably attached to the screw shaft 4 so as to be able to correspond to the shape of the upper end portion of the corner drop plate 2 or the spacer to be used. Since the contact portion 16 is in contact with the center of the angle drop plate 2 in the thickness direction, the moment in the direction in which the screw shaft 4 is inclined does not act, and the nut portion 1 does not act.
This prevents an unreasonable stress from acting on zero or the like.

When the screw shaft 4 is pulled up to the uppermost position, the vertical distance h between the lowermost contact portion 16 of the screw shaft 4 and the upper end surface of the guide wall 1 is equal to the vertical distance of the angle drop plate 2. The length is larger than the direction length l. With this configuration, if the screw shaft 4 is pulled up to the uppermost position, the frame 6 remains attached to the guide wall 1 and the left and right sides of the frame 6 as shown by a two-dot chain line in FIG. The angle drop plate 2 can be inserted between the leg portions 8 and the angle drop plate 2 can be inserted into the guide groove 3, thereby improving workability.

FIG. 3 shows a second embodiment of the present invention.
The same components as those in the first embodiment are denoted by the same reference numerals, detailed description thereof will be omitted, and different configurations and effects will be described. In the water shielding structure according to the second embodiment, the frame 6 includes a base piece 19 abutting on the upper end face of the guide wall 1 and an upright piece 20 extending upward from the left and right inner ends of the base piece 19. It has an L-shaped fitting. The base piece 19 is fastened and fixed to anchor bolts 11 provided on the front and rear sides of the guide groove 3. The nut 10 is provided at the center of the base piece 19.

In the present embodiment, the angle drop plate 2 is exemplified by one having a ridge 22 extending in the width direction at the upper end and a groove 23 into which the ridge 22 is fitted at the lower end. The screw shaft 4 corresponding to the upper end shape of the angle drop plate 2
As the contact portion 16 provided at the lower end of the bracket, a substantially U-shaped bracket with a downward opening is adopted, and the bracket is rotatably attached to the screw shaft 4. The handle 15 provided at the upper end of the screw shaft 15 is provided with an upwardly protruding grip portion 25 at the tip end thereof, so that the handle 15 can be easily rotated with one hand. In the water shielding structure according to the second embodiment, since the configuration of the frame 6 is extremely simple, a large cost reduction can be achieved. In the frame having the rising pieces as shown in the second embodiment, the central portion of the base piece 19 is lifted upward, and when the screw shaft is pulled up to the highest position, the bottom end of the screw shaft comes into contact. It is preferable that the vertical distance between the portion and the upper end surface of the guide wall be larger than the vertical length of the corner drop plate.

FIGS. 4 and 5 show a third embodiment of the present invention. The same components as those in the second embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. The effect will be described. In the water shielding structure according to the present embodiment, the frame 6 includes a main body (receiving frame) 26 attached and fixed to the guide wall 1 and a screw shaft support (gate-shaped frame) 27 having the nut 10. The main body 26 is formed in a substantially U-shape in plan view, and the U-shaped portion 26a is fitted in the guide groove 3, so that the angle drop plate 3 can be inserted and removed from above. The screw shaft support portion 27 is formed in a gate shape, and its two leg portions 27 a are provided with the U-shaped portions 26 of the main body portion 26.
a is rotatably connected to the upper side surfaces. The connecting means 28 may be of any type, but in the illustrated embodiment is constituted by bolts and nuts.
The screw shaft 4 for pushing is screwed into the nut portion 10 of the support portion 27. As shown in FIG.
If the pivot 7 is rotated left and right outward, the space above the guide groove 3 is opened, and in this state, the angle drop plate 3 can be freely inserted and removed. Then, when the corner drop plate 3 guided and held in the guide groove 3 is pushed downward, the support portion 27 is raised and the handle 15 is rotated as shown in FIG. Although the angle drop plate 3 may be directly pushed down by the screw shaft 4, as shown in FIG.
It can be pushed down via a spacer 29 disposed above the corner drop plate 3. Thus, the screw shaft 4 and the angle drop plate 3
If a spacer 29 is interposed between the screw shafts 4, the axial length of the screw shaft 4 can be shortened, and the pushing depth can be adjusted by the number of the spacers 29. In this embodiment, the support portion 27 (the gate-shaped frame) is attached to the main body portion 26 (the receiving frame). However, the support portion 27 (the portal frame) may be attached to a fitting fixed to the guide wall 1 by an anchor.

FIGS. 6 and 7 show a fourth embodiment of the present invention. The same components as those in the second embodiment are denoted by the same reference numerals, and detailed description is omitted. The effect will be described. In the water shielding structure according to the present embodiment, the frame 6 has a main body 30 attached and fixed to the upper end of the guide wall 1 and a pair of front and rear hinges 31 that are openably and closably connected to the main body 30. The main body 30 has a base piece 32 attached and fixed to the anchor bolt 11 provided on the guide wall 1, and the base piece 32 is a plate extending from the left and right outer positions of the guide groove 3 to the front and rear sides of the groove 3. The notch 33 is formed so that the upper part of the guide groove 3 is opened. Left and right inner edges, front and rear edges and notch 3 of base piece 32
At the edge along 3, there is provided a standing piece 34 that rises vertically upward.

The hinge portion 31 is rotatably attached to the front and rear ends of the upper end of the standing piece 34 via hinges 35.
The width in the front-rear direction of the hinge portion 31 is slightly smaller than the width in the front-rear direction of the standing piece 34. When the pair of hinges 31 are closed, as shown in FIG. 7, the two hinges 31 and the standing piece 34 are overlapped, and the bolts and nuts are overlapped in this overlapped state. 36 are integrally connected. If a wing nut is used as the nut, the nut can be tightened and loosened without using a tool, and the workability can be improved.

The nut portion 10 is formed by a part of the hinge portions 31 when the pair of hinge portions 31 are closed and connected in an overlapping manner as described above. In the present embodiment, a semi-cylindrical portion constituting a half of the nut portion 10 is formed substantially at the center of each hinge portion 31 in the width direction, and the nut portion 10 is configured by combining these semi-cylindrical portions. It has become. When the hinge portion 31 is opened, as shown by the two-dot chain line in FIG.
It is removed from above the corner drop plate 2 guided and held by the guide wall 1, and the space above the corner drop plate 2 is opened. Therefore, just by removing the bolts and nuts 36 and opening the hinge portion 31, the upper part of the corner dropping plate 2 can be quickly and easily opened, and the workability of additional insertion and removal of the corner dropping plate 2 is improved. obtain. Furthermore, since the screw shaft 4 can be immediately removed by opening the hinge portion 31, there is no need to rotate the screw shaft 4 to the upper position, and the operation can be simplified and speeded up.

The present invention is not limited to the above-described embodiment, and the design can be changed as appropriate. For example, as shown in FIG. 8, the contact portion 16 at the lower end of the screw shaft 4 is formed in a disk shape, and a guide shaft 40 is protruded downward from the corresponding contact portion 16. The guide plate 42 may be configured to be inserted into the guide recess 42 provided at the upper end of the work plate 2. In addition,
It is preferable that the cylindrical bush 41 is fitted in the guide recess 42. Further, the screw shaft 4 may be configured to be rotationally driven by driving means such as a motor.

[0022]

According to the present invention, in a water shielding structure having a corner drop plate guided and held by a guide wall,
Since the push-in device for pushing the angle drop plate downward by the screw shaft is provided, the angle drop plate can be reliably pushed to the required position by the screw shaft, and a reliable sealing property can be secured. Further, the pushing device includes a frame attached to the guide wall, and the screw shaft is screwed to a nut portion provided on the frame so as to be able to move up and down in a vertical direction, and the lower end of the screw shaft is applied to a corner drop plate or a spacer. Provided that a contact portion is provided, and the nut portion is disposed above the angle drop plate guided and held by the guide wall, it is possible to securely push the angle drop plate by the screw shaft while having a simple configuration. , Can exert a certain sealing force. Further, the frame includes a main body portion formed in a substantially U-shape in plan view so that the angle drop plate can be inserted from above, and a screw shaft support portion having a nut portion, and the support portion is angled to the guide wall. If the support plate is attached to the main body so that the position can be changed to a position that allows the insertion plate to be inserted, the space above the corner cut plate is opened by changing the position of the support part, and the corner cut plate to the guide wall is changed. It is possible to perform additional insertion and extraction work, and while ensuring the sealing performance with the screw shaft, adjust the height of the impermeable wall composed of multiple It is possible to speed up the work of removing the slab. Further, the frame has a main body, and a pair of hinges connected to the main body so as to be openable and closable. When the nut is closed and connected to each other by closing the pair of hinges, the hinges are connected to each other. The upper space of the corner drop plate guided and held by the guide wall is opened by opening the pair of hinge portions, so that the upper portion of the corner drop plate is opened by opening the pair of hinge portions. Opening the space, additional insertion and removal of the angle drop plate to the guide wall can be performed, and the water shield formed by a plurality of angle drop plates while ensuring the sealing performance with the screw shaft It is possible to speed up the adjustment of the height of the wall and the removal work of the corner drop plate that has already been constructed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a water shielding structure according to a first embodiment of the present invention.

FIG. 2 shows a main part of the water-impervious structure, (a) is a plan view,
(B) is a side view.

FIGS. 3A and 3B show a main part of a water shielding structure according to a second embodiment of the present invention, wherein FIG. 3A is a plan view and FIG. 3B is a side view.

FIGS. 4A and 4B show a pushing device according to a third embodiment of the present invention, wherein FIG. 4A is a plan view and FIG. 4B is a side view.

FIG. 5 is a front view showing a state where the corner drop plate is being pushed down by the pushing device.

FIG. 6 is a side view showing a main part of a water shielding structure according to a fourth embodiment of the present invention.

FIG. 7 is a plan view of the water impermeable structure.

FIG. 8 is a sectional view showing an embodiment of a lower end structure of the screw shaft.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide wall 2 Square drop plate 4 Screw shaft 5 Push-in device 6 Frame 10 Nut part 16 Contact part 26 Main body part 27 Screw shaft support part 30 Main body part 31 Hinge part

Claims (4)

[Claims] 1. A water shielding structure having a corner drop plate guided and held by a guide wall, wherein the guide wall is provided with a pushing device for pushing the angle drop plate downward by a screw shaft. 2. A frame mounted on a guide wall for guiding and holding a corner drop plate, and a screw shaft screwed to a nut portion provided on the frame so as to be able to move up and down in a vertical direction. It is arranged above the corner drop plate that is guided and held, and at the lower end of the screw shaft, there is provided a contact portion that comes into contact with a corner drop plate or a spacer arranged above the corner drop plate. Device for pushing the corner drop plate. 3. A frame includes a main body having a substantially U-shape in plan view so that a dropping plate can be inserted from above, and a screw shaft support having a nut, and the support is provided with a guide. The device for pushing in a corner drop plate according to claim 2, wherein the device is attached to the main body so that the posture can be changed to a position in which the corner drop plate can be inserted into a wall. 4. The frame has a main body and a pair of hinges connected to the main body so as to be openable and closable, and the nut is closed when the pair of hinges is closed and connected in an overlapping manner. The upper space of the corner drop plate guided and held by the guide wall is opened by opening the pair of hinge portions.
Or the pushing-in apparatus of the corner drop board of 3.