JP3785486B2 - Bullet culvert forming device - Google Patents

Description

The present invention relates to a bullet culvert forming equipment, and more particularly, to a projectile culvert installed like for the drainage of wetland, forming a through Mizumizo filled with hydrophobic material, such as rice husk, especially about the equipment for.

Conventionally, a so-called bullet culvert forming device is known as a device for forming drainage culverts on poorly drained land. In this bullet culvert forming device, for example, a bullet culvert is formed in the ground by pulling with a bulldozer or the like in a state where a chisel (soil incision portion) provided with a bullet at the lower end is advanced into the ground. (For example, refer to Patent Document 1). In addition, in culvert drainage work where a culvert drainage pipe is laid in the groove, in order to improve drainage performance, a hydrophobic material for forming a water permeable layer such as pebbles and rice husks to a predetermined depth in the groove above the culvert drainage pipe is used. After the introduction, topsoil is put on the hydrophobic material to refill the groove.
Japanese Patent Publication No. 60-17894

  Therefore, even in bullet culverts, it is possible to improve drainage performance by putting and filling a hydrophobic material such as rice husk into the culvert, but a normal bullet culvert is located above the bullet section. Since the groove width was narrow, it was extremely difficult to introduce a hydrophobic material into the groove. In addition, the hydrophobic material is generally put into the groove from the bag, and the actual situation is that most of the work depends on manual work. For this reason, it is difficult to spread the hydrophobic material uniformly, and the input amount (depth) is uneven, or the hydrophobic material is wasted.

The present invention aims at providing introduction of hydrophobic materials into the Tsusuimizo, simultaneously with the formation of the bullet culvert filling, a bullet culvert forming equipment can be performed efficiently and uniformly.

To achieve the above object, the bullet underdrain forming apparatus of the present invention is to form a water passing grooves and projectile culverts, hydrophobic material to the water passage grooves Apparatus for Hama charging, the vehicle can travel backhoe A vertical blade that is rotatably mounted via a horizontal rotation shaft, a hydrophobic material hopper that is connected to the rear side in the advancing direction of the blade, and a hydrophobic that opens to the lower rear of the hydrophobic material hopper A material supply port , a bullet connected to the rotating end of the blade or the lower portion of the hydrophobic material hopper, and forming a bullet culvert behind the hydrophobic material supply port on the rear side in the excavation direction, and the rotation axis The backhoe is provided with a working arm of the backhoe that rotates the blade so that the bullet is inserted into the standby position on the ground on the backhoe side and the anti-backhoe side with respect to the working position in a state where the bullet is inserted into the ground. Excavator drive Together with and a cylinder, said blade in a state of being inserted into the ground is turned into the hydrophobic material in the hopper to the ongoing water passing excavating direction hydrophobic material is excavated by the blade from the hydrophobic material supply port It is characterized in that it is formed so as to be supplied into the water channel .

According to the present invention, simultaneously with the formation of the bullet culvert and the water channel, the hydrophobic material can be reliably put into the water channel having a narrow groove width above the bullet culvert, so the workability is greatly improved. At the same time, drainage performance in poorly drained land can be improved reliably.

1 to 9 show a reference example of a bullet culvert forming apparatus according to the present invention. FIG. 1 is a side view, FIG. 2 is a front view, and FIG. 3 is an arm of a backhoe as a working machine. 4 is a side view showing a state at the start of a bullet culvert forming operation, FIG. 5 is a side view showing a state during the formation of a bullet culvert, and FIG. 6 is a state at the end of the bullet culvert forming operation. 7 is a sectional side view of a bullet culvert filled with a hydrophobic material, FIG. 8 is a sectional front view of the bullet culvert, and FIG. 9 is a plan view showing a construction example of the bullet culvert.

The bullet culvert forming apparatus shown in this reference example is an apparatus in which a pair of bullet culvert forming portions 11 for simultaneously forming two rows of bullet culverts are integrally connected by a connecting frame 12 in the horizontal direction. The bullet culvert forming part 11 is operated by connecting the rotating shaft mounting part 13 and the driving means connecting part 14 provided in 12 to the arm 16 provided in the backhoe 15 as a working machine and the cylinder 17 as the driving means, respectively. I try to let them.

  The bullet culvert forming part 11 includes a blade 21 made of a plate-like body, a bullet 22 provided at a rotating end of the blade 21, and a hydrophobic material hopper 23 continuously provided on the rear side in the traveling direction of the blade 21. The hydrophobic material hopper 23 has a hydrophobic material supply port 24 opened at the lower rear side. In FIG. 2, on the left side of the connecting frame 12, a bullet culvert forming part composed of a blade 21 and a bullet 22 is provided without a hydrophobic material hopper 23, and a bullet culvert filled with a hydrophobic material and a normal bullet culvert. Can be formed simultaneously in parallel.

  The connecting frame 12 has connecting portions 25 to the blades 21 at both ends thereof, the rotating shaft mounting portion 13 at the center upper portion, the driving means connecting portion 14 at the rear side in the traveling direction of the center portion, and the center lower portion. Side-view arc-shaped guide members 26 for checking the excavation depth are provided, and the rotation shaft mounting portion 13 is rotatably mounted on the tip of the arm 16 of the backhoe 15 via the rotation shaft. Has been. Further, the driving means connecting portion 14 is connected to a link mechanism 27 at the end of the arm by a connecting shaft, and is connected to the cylinder 17 via the link mechanism 27. The positions of the rotating shaft mounting portion 13 and the driving means connecting portion 14 are such that when the bullet culvert forming portion 11 is rotated around the rotating shaft mounting portion 13 by the cylinder 17, the bullet 22 is inserted into the ground. It is set so that the bullet 22 can be rotated to the standby position on the work machine side and the standby position on the counter work machine side, which are located on the ground, with respect to the work position in the above state.

The blade 21 is a plate-like body with a sharpened tip portion that becomes a traveling direction when a bullet culvert is formed, in this reference example , the tip portion on the backhoe 15 side, and is arranged in the vertical direction. It is fixed to the connecting portion 25 with bolts. The bullet 22 is provided in a horizontal direction at a position that becomes the lower end of the blade 21 when a bullet culvert is formed, and has a bullet shape with a sharpened tip.

  The hydrophobic material hopper 23 is formed of a hydrophobic material charging portion 23a that expands in an inverted trapezoidal shape toward the upper opening, and a hydrophobic material guide portion 23b that is continuously provided below the hydrophobic material charging portion 23a. The width dimension of the hydrophobic material guide portion 23 b is wider than the width dimension (thickness) of the blade 21 and is narrower than the bullet 22. If the width dimension of the hydrophobic material guide portion 23b is too large, not only the excavation resistance at the time of construction increases but a large driving force is required, but the amount of the hydrophobic material to be filled increases and the cost increases. Further, in front of the hydrophobic material guide portion 23b, a slope portion 23c for eliminating a step between the rear end of the blade 21 and the front end of the hydrophobic material guide portion 23b is provided.

  The hydrophobic material supply port 24 is formed by opening the lower rear surface of the hydrophobic material guide portion 23b, and its height is about 1/2 to 3/4 from the bottom of the bullet culvert to be formed. For example, in a general paddy field, 10 to 15 cm is cultivated by a tractor or the like from the paddy surface, so that the bottom of the bullet 22 is set to about 40 cm and the filling height of the hydrophobic material is set to 25 to 30 cm. At this time, the hydrophobic material may be filled close to the surface, but only wasteful.

  As shown in FIGS. 3 to 6, the bullet culvert forming apparatus formed in this way is attached to the tip of the arm with the excavator (bucket) attached to the arm 16 of the general backhoe 15 removed. By operating the operation cylinder 18 and the shovel drive cylinder 17, a bullet culvert 32 filled with a hydrophobic material 31 can be formed as shown in FIGS. 7 to 9.

  First, as shown in FIG. 3, by operating the cylinders 17 and 18, the bullet culvert forming portion 11 is rotated to the standby position on the side opposite to the work machine far from the backhoe 15 and a bullet culvert is formed. Located at the end of land 33. In this state, the cylinder 17 is operated in the extending direction to rotate the bullet culvert forming portion 11 around the rotation shaft mounting portion 13, and as shown in FIG. 4, the lower portion of the bullet culvert forming portion 11, that is, the blade 21. The bullet 22 and the hydrophobic material guide part 23b are advanced to a predetermined depth in the ground so that the axis of the bullet 22 faces substantially horizontal and the opening of the hydrophobic material hopper 23 faces upward.

  In this state, an amount of the hydrophobic material 31 corresponding to one work amount is put into the hopper from the opening of the hydrophobic material hopper 23. At this time, it is possible to put a large amount of hydrophobic material into the hydrophobic material hopper 23, but not only the hopper is enlarged, but also moves to the position where the next bullet culvert is formed after forming one bullet culvert. In this case, the hydrophobic material flows out from the hydrophobic material supply port 24 and is wasted. In order to prevent the hydrophobic material from flowing out, it is necessary to provide a shutter or the like for opening and closing the hydrophobic material supply port 24. This increases the cost of the apparatus, and providing a movable part is not preferable as a cause of failure.

  Next, as shown in FIG. 5, the cylinders 17 and 18 are operated in a state where the lower part of the bullet culvert forming part 11 is inserted into the ground, and the bullet culvert forming part 11 is directed toward the backhoe 15 to , The bullet culvert 32 having a predetermined shape is formed after the blade 21, the bullet 22 and the hydrophobic material guide portion 23 b have passed, and the hydrophobic material 31 in the hydrophobic material hopper 23 is transferred from the hydrophobic material supply port 24. It flows out into the bullet culvert 32 and is in a state of being uniformly charged and filled up to a predetermined height in the groove. It is also possible to form the bullet culvert 32 by running the backhoe 15 with the positions of the bullet culvert forming portion 11 and the arm 16 fixed, and the traveling of the backhoe 15 and the operation of the cylinders 17 and 18 are used in combination. You can also.

  As shown in FIG. 6, when the bullet culvert 32 reaches a predetermined position, for example, near or above the culvert drain pipe, the bullet culvert forming section 11 is rotated to the standby position on the working machine side to thereby form the bullet culvert forming section 11. Pull out the bottom of the ground. As a result, as shown in FIG. 7, a bullet culvert 32 having a predetermined length and filled with the hydrophobic material 31 is formed.

In the bullet culvert forming apparatus shown in this reference example , the above-described operation is repeated with an appropriate interval, so that the land 33 is filled with the bullet culvert 32 filled with the hydrophobic material 31 and the hydrophobic material. The normal bullet culverts 34 that are not present can be alternately formed at predetermined intervals. Further, since the bullet 22 is greatly swollen, cracks can be generated in the soil around the bullet culverts 32 and 34, so that the water permeability is improved and the effect of the culvert can be enhanced. Therefore, the predetermined drainage effect can be obtained without filling all the bullet culverts with the hydrophobic material, so that the cost required for the hydrophobic material can be greatly reduced.

  Further, as shown in FIG. 4, when the lower part of the bullet culvert forming part 11 is advanced into the ground, the bullet culvert forming part 11 is rotated on the spot, so that the bullet culvert 32 is also provided at the end of the land 33. Can be formed easily and reliably, and drainage near the land edge can be improved. In particular, by mounting the bullet culvert forming part 11 on the arm 16 of the backhoe 15, the travel amount of the work machine can be reduced, and it is not necessary to run around the land 33 that forms the bullet culvert 32 like a tractor. The roughness of the ground, for example, the rice field, can be minimized. Furthermore, since the work implement can be operated without stepping on the part where the bullet culvert is formed and the work implement does not need to be turned, there is no occurrence of roughing or destruction of the bullet culvert caused by the running or turning of the work implement.

  Further, by appropriately operating the arm 16, a bullet culvert can be easily and reliably formed on an inclined ground, and a bullet culvert in a state of being continuous from an inclined ground to a flat ground can be easily formed. The upper part of the hydrophobic material 31 filled in the bullet culvert 32 may be backfilled with surrounding earth and sand, and the arcuate portions of the bullet culverts on the starting side and the terminal side are filled with rice husk and earth and sand as necessary. Then close it.

In this reference example , the bullet culvert forming apparatus in which the bullet culvert forming section 11 provided with the hydrophobic material hopper 23 and the bullet culvert forming section 11 without the hydrophobic material hopper 23 are provided in the connecting frame 12 at predetermined intervals is exemplified. The bullet culvert forming part 11 may be provided with a hydrophobic material hopper 23. Further, by providing the rotating shaft mounting portion 13 and the driving means connecting portion 14 at an appropriate position of the blade 21 having the hydrophobic material hopper 23, the bullet culvert filled with the hydrophobic material by only one bullet culvert forming portion 11 can be formed. In contrast, it is possible to provide three or more bullet culvert forming portions 11 on the connecting frame 12 and a hydrophobic material hopper 23 on at least one of them. Furthermore, the working machine is not limited to the backhoe 15, and a tractor or the like can be used. As the hydrophobic material, rice husks are optimal for bullet culverts in fields and the like, but pebbles and the like can also be used in parks, schoolyards, and the like.

  In the same configuration as described above, the bullet 22 provided at the rotating end of the blade 21 is omitted, and the blade 21 and the hydrophobic material hopper 23 are combined to form a narrow water passage groove. At the same time as excavation, the water channel can be filled with a hydrophobic material, and the water channel filled with the hydrophobic material can be easily and reliably formed by attaching the material to the backhoe 15 in the same manner as described above. be able to.

10 and 11 show an embodiment of the present invention, in which a bullet is provided on the rear side in the excavation direction with respect to the hydrophobic material supply port in the water flow groove forming apparatus in which no bullet is provided at the rotating end of the blade. An example is shown. In addition, the same code | symbol is attached | subjected to the component same as the component in the bullet culvert formation apparatus shown in the said reference example , respectively, and detailed description is abbreviate | omitted.

  The bullet 22 shown in this embodiment is connected to the rotating end of the blade 21 via a chain 41. During excavation, the bullet 22 is pulled by the blade 21 and behind the hydrophobic material supply port 24 in the excavation direction. It is in a state that forms a bullet culvert. Accordingly, the hydrophobic material 31 from the hydrophobic material supply port 24 is supplied into the groove excavated by the blade 21, and thereafter, the lower end of the groove is expanded by the bullet 22, and as shown in FIG. Is filled with a hydrophobic material 31, and a bullet culvert 44 can be formed in a state where almost no hydrophobic material is present in the bottom bullet portion 43.

  The bullet 22 can be connected to the blade 21 with the chain 41, or an appropriate arm can be used or connected to the lower portion of the hydrophobic material hopper 23. The bullet 22 and the blade 21 can be used during excavation work. It is preferable to use a connecting tool having flexibility such as a chain so that an unreasonable force is not applied.

It is a side view which shows one reference example of the bullet culvert formation apparatus of this invention. It is also a front view. It is a side view which shows the state which mounted | wore the backhoe with the bullet culvert formation apparatus. It is a side view which shows the state at the time of a bullet culvert formation work start. It is a side view which shows the state in a bullet culvert formation operation. It is a side view which shows the state at the time of a bullet culvert formation work completion | finish. It is a cross-sectional side view of the formed bullet culvert. It is a cross-sectional front view of the formed bullet culvert. It is a top view which shows the construction example of a bullet culvert. It is a side view which shows the example of 1 form of this invention. It is a section front view of the bullet culvert formed in one example of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Bullet culvert formation part, 12 ... Connection frame, 13 ... Rotating shaft mounting part, 14 ... Drive means connection part, 15 ... Backhoe, 16 ... Arm, 17, 18 ... Cylinder, 21 ... Blade, 22 ... Bullet, 23 ... Hydrophobic material hopper, 23a... Hydrophobic material charging section, 23b... Hydrophobic material guide section, 23c... Slope section, 24... Hydrophobic material supply port, 25. , 32, 34 ... bullet culvert, 33 ... land, 41 ... chain, 42 ... groove, 43 ... bullet, 44 ... bullet culvert

Claims (1)

Forming a water passing grooves and projectile culverts, an apparatus for Hama hydrophobic material charge to the water passage groove, is rotatably mounted via a pivot axis in horizontal direction drivable backhoe A blade in the vertical direction, a hydrophobic material hopper continuously provided on the rear side in the moving direction of the blade, a hydrophobic material supply port opened at the lower rear of the hydrophobic material hopper, a rotating end of the blade or the hydrophobic material A bullet that is connected to the lower part of the hopper and forms a bullet culvert behind the hydrophobic material supply port in the excavation direction, and the blade is rotated around the rotation axis to insert the bullet into the ground A shovel drive cylinder provided on the work arm of the backhoe, which is positioned at both standby positions on the ground on the backhoe side and the anti-backhoe side with respect to the work position in the state of being placed , and inserted into the ground State Wherein the blade is formed so as to be supplied into the Tsusuimizo which the hydrophobic material has been charged into the hydrophobic material in the hopper in progress is drilled by said blade from said hydrophobic material supply port to the water passing grooves drilling direction A bullet culvert forming device characterized by this.

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