JP2007143535A - Tool for removing aquatic plant, tool for gathering aquatic plant and method for removing aquatic plant by using them - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method so as to remove aquatic plants such as water lettuce, water hyacinth, etc., capable of becoming harmful weeds economically and effectively. <P>SOLUTION: This method for removing the aquatic plants is provided by hanging an aquatic plant-removing tool 3 by a movable wire 10A and a fixed wire 10B hang from the tip end part of an arm 2 at a track crane 1, scooping up the aquatic plants growing over a water region by the aquatic plant-removing tool 3 with the swinging, and lifting up and down operations of the arm 2 and the running out and winding back operations of the movable wire 10A, and dumping them ashore, or in the case of transferring the aquatic plants in the water region to the dumping place, surrounding the harmful weeds with a tool for gathering aquatic weed 16 consisting of a multiple number of approximately rod-formed floats 17 and string-formed members for joining the end parts of the approximately rod-formed floats 17 with each other and towing them to the dumping place by a boat, etc. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a removing tool for removing aquatic plants, a weed collecting tool for moving aquatic plants together in a river, a lake, and the like, and a method for removing aquatic plants using them.

  In recent years, abnormal overgrowth of aquatic plants such as water lettuce, Amazon domesa, canard and water hyacinth has become a problem in rivers and lakes. In particular, water lettuce is very prosperous and covers the entire water surface in a short period of time, so sunlight does not reach the water and photosynthesis by underwater plants is not performed, resulting in a significant increase in oxygen concentration in the water. The water quality deteriorates and the water quality deteriorates, and the aquatic organisms such as fish cannot live.

  Conventionally, as a method for removing aquatic plants, an operator rides a boat with an outboard motor and goes to the water area where aquatic plants are thriving, where they are scraped up and moved to the shore, using backhoes. Landing is being carried out.

  In the above-mentioned aquatic plant removal work, it takes time and labor for workers to rake up the aquatic plants from the boat.In shallow water, workers enter the water and rake up. However, because the bottom is mud and so on, unlike the land, it is not possible to work quickly. In addition, even when the scraped aquatic plants are moved to the shore, there is a problem that the aquatic plants are easily broken during the movement.

  In addition to the methods described above, various removal operations have been attempted, but the actual situation is that sufficient results have not been obtained.

  The objective of this invention is providing the removal tool which can remove aquatic plants economically and efficiently, and the aquatic plant removal method using the same.

  The present invention according to claim 1 relates to an aquatic plant removing tool having a squib surface portion for scooping aquatic plants and a hooking portion for a suspension wire.

  In addition, in this application, aquatic plants include everything to be removed as harmful grasses in the water area, and specifically include water lettuce, water hyacinth and the like.

  According to a second aspect of the present invention, there is provided the aquatic plant removing tool according to the first aspect, wherein the squeeze surface portion has a U-shaped outer frame as viewed from the plane with the front side, and a predetermined interval in the left-right direction within the outer frame. The squeeze bar member is provided, and the latching portions are provided at the upper end of the suspension shaft erected on the squeeze surface portion and at both ends of the rear edge of the squeeze surface portion.

  According to a third aspect of the present invention, in the aquatic plant removing tool according to the second aspect, a rear wall is erected on the rear edge of the squeeze surface portion.

  The present invention according to claim 4 is the aquatic plant removing tool according to claim 1, wherein the main body includes a front and rear triangular frame and a connecting frame member that connects each corner of the triangular frame. A plurality of rod-shaped members extending in the front-rear direction are provided on the left and right side surfaces and the bottom surface with a predetermined interval, and a plurality of rod-shaped members extending in the vertical direction are provided on the back surface with a predetermined interval, so that the main body has the front side The main body has an open bowl shape, the bottom surface of the main body is a squeeze surface portion, and floats are attached to both side surfaces of the main body.

  According to a fifth aspect of the present invention, there is provided the aquatic plant removing tool according to the fourth aspect, wherein a plurality of blades extending forward are provided at predetermined intervals in the left-right direction on the front surface of the lower frame member of the front triangular frame. It is characterized by being provided.

  The present invention according to claim 6 relates to an aquatic plant focusing tool having a plurality of substantially rod-like floating bodies and a string-like member for connecting the ends of adjacent substantially rod-like floating bodies.

  According to a seventh aspect of the present invention, in the aquatic plant focusing tool according to the sixth aspect, the substantially rod-like floating body has a thickness that enters a boundary between water lettuce leaves and roots.

  The substantially rod-shaped floating body is not particularly limited as long as it is generally rod-shaped and floats on the water surface, and examples thereof include bamboo, a foamed resin molded into a rod shape, and rubber.

  The present invention according to claim 8 is a method for removing aquatic plants using the aquatic plant removing tool according to any one of claims 1 to 5, wherein the suspension wire is attached to an arm of a landing machine. It is characterized in that the tip of the aquatic plant is fastened to the hanging part of the aquatic plant remover and the aquatic plant remover is suspended, and the aquatic plant is scooped up and collected at the landing site by turning and lifting the arm. It is what.

  The landing machine is not particularly limited as long as it is a machine that can suspend the aquatic plant remover, and examples thereof include a crane, an excavator, and a scraper.

  The present invention according to claim 9 is a method for removing aquatic plants using the aquatic plant removing tool according to any one of claims 1 to 5 and the aquatic plant focusing tool according to claim 6 or 7. Then, the aquatic plants gathered on the surface of the water are surrounded by the aquatic plants, and the aquatic plants are pulled by a boat and / or human power to move the aquatic plants to the landing site, and then the suspension attached to the arm of the landing machine. Fasten the tip of the suspension wire to the hook of the aquatic plant remover, suspend the aquatic plant remover, and scoop the aquatic grass on the squeeze surface of the aquatic plant remover and swivel it up and down to collect it at the landing site. It is a feature.

  When carrying out the method for removing aquatic plants according to the present invention using the aquatic plant removing tool and the aquatic plant bundling tool of the present invention, first, the aquatic plant bundling tool is used to surround aquatic plants such as water lettuce over the water surface within a certain range, and It can be easily moved to the landing site, and then the water weed remover of the present invention is suspended on the arm of a landing machine such as a crane, and the arm surface is swung and the aquatic plant remover is lifted and lowered. Can be reliably and efficiently accumulated on land.

  Needless to say, when removing aquatic plants that have flourished around the landing site, it is not necessary to move the aquatic plants using the aquatic plant focusing tool.

  Next, an embodiment when the present invention is applied to a water lettuce removing operation will be described with reference to the drawings. In addition, this invention is not limited to the embodiment which concerns, A various deformation | transformation implementation is possible within the range of the summary.

  As shown in FIG. 1 and FIG. 2, an aquatic plant removal tool, which will be described later, by one movable wire (10A) and two fixed wires (10B) hanging from the tip of the arm (2) of the truck crane (1). (3) is suspended.

  That is, as shown in FIGS. 3 and 4, the aquatic plant removing tool (3) is erected at the center of the square squeeze surface portion (4) and the rear edge (4a) of the squeeze surface portion (4). A suspension shaft (5) inclined forward by a predetermined angle, and a support shaft (the upper end is fixed to the central portion of the length of the suspension shaft (5) and the lower end is fixed to the squeeze surface portion (4) ( 6) and a rear wall (9) erected on the rear edge (4a) of the squeeze surface portion (4).

  The squeeze surface part (4) is a part for scooping up the water lettuce (L). The U-shaped outer frame (7) viewed from the open plane, one end is fixed on the rear frame member (7a) of the outer frame (7), and the other end extends to the front side of the outer frame (7), And a plurality of square steel pipe squeeze beam members (8) provided at predetermined intervals in the left-right direction of the outer frame (7).

  In addition, an inner frame member (11) is provided on the lower surface of the outer frame (7) of the squeeze surface portion (4) in parallel with the rear frame member (7a) of the outer frame (7). These are supported by fixing the lower end of each squeeze bar member (8) and the support shaft (6). Further, on the upper part of the suspension shaft (5), there are auxiliary rod-like members (12) erected from the both ends of the upper surface of the rear frame member (7a) and the upper surface of the middle frame member (11) on the squeeze surface portion (4). The top of the is fixed.

  The rear wall (9) is composed of a downward U-shaped frame (9b) and a rod-shaped inner member (9c) installed in a zigzag manner inside thereof.

As shown in FIGS. 3 to 5, the wire (10A) is attached to the upper end of the suspension shaft (5) and the upper end of the rear edge (4a) of the squeeze surface portion (4).
Hooks (13) and (14) for hooking (10B) are provided.

  In the figure, (20) is provided between the upper corner (9a) of the rear wall (9) and the left and right frame members (7b) (7c) of the squeeze surface (4) in order to reinforce the rear wall (9). FIG. Further, in this embodiment, the squeeze surface portion (4), the suspension shaft (5), the support shaft (6), the auxiliary rod member (12), the reinforcement member (20), etc. of the aquatic plant removal tool (3) are all. It is made of iron. Each member is fixed by welding.

  In this embodiment, as shown in FIGS. 1 and 2, the movable wire (10A) is suspended from one side of the tip of the arm (2) of the truck crane (1), and two fixed wires ( 10B) is suspended, and the movable wire (10A) and the fixed wire (10B) are suspended by the movable wire (10A) and the fixed wire (10B) when the arm (2) of the truck crane (1) turns. The aquatic plant removing tool (3) is set at an interval at which it does not rotate. That is, at the tip of the arm (2) of the truck crane (1), when the hanging positions of the movable wire (10A) and the fixed wire (10B) are close to each other, the aquatic plant removal tool ( When 3) rotates and scoops up the water lettuce (L), it must wait until the aquatic plant removal tool (3) returns to its original state, which reduces work efficiency and prevents this. There is a need.

  In this embodiment, the lower end of the movable wire (10A) is connected to the hooking portion (13) at the upper end of the suspension shaft (5) in the aquatic plant removing tool (3) via the hook (15). The lower end of the fixed wire (10B) of the book is connected to a hooking portion (14) provided at both ends of the rear edge (4a) of the squeeze surface portion (4) in the aquatic plant removing tool (3).

  As shown in FIG. 6, the aquatic plant focusing tool (16) includes a plurality of substantially rod-like floating bodies (17) made of bamboo or the like, and a rope-like member (such as a rope) connecting adjacent tip portions of the substantially rod-like floating bodies (17). 18). The aquatic plant focusing tool (16) surrounds a large number of water lettuce (L) floating on the water surface within a certain range and moves to a landing place by a boat.

  Moreover, as shown in FIG. 7, it is preferable that the substantially rod-shaped floating body (17) has a thickness that enters the boundary between the root (L1) and the leaf (L2) of the water lettuce (L), and a diameter of 3 to 4 cm is preferable. It is.

  Next, a method for removing water lettuce (L) using the aquatic plant removing tool (3) and the aquatic plant focusing tool (16) described above will be described. First, as shown in FIG. On the boat (B) attached to the place where the water lettuce (L) is prosperous, where the water lettuce (L) is surrounded by an aquatic plant focusing tool (16), and then the worker (W) Connect the bundling tool (16) with the boat (B) and rope (E), etc., and move the boat (B) to the landing place of the water lettuce (L). It is towed to the landing site in a state of being focused by the tool (16).

  And at the landing site, after turning the arm (2) of the truck crane (1) above the towed water lettuce (L), the movable wire (10A) is slightly loosened, and the aquatic plant remover (3) The water lettuce (L) is scooped with the squeeze surface portion (4) inclined to the water surface (see FIG. 9). Next, the movable wire (10A) of the truck crane (1) is slightly wound up so that the squeeze surface part (4) of the aquatic plant removal tool (3) is in a substantially horizontal state, and water lettuce (L) is placed thereon ( 10), the arm (2) of the truck crane (1) is swung to the accumulation place of the water lettuce (L). After that, the movable wire (10A) of the truck crane (1) is completely loosened, and the aquatic plant removal tool (3) is substantially suspended by only two fixed wires (10B). The squeeze surface part (4) of the removal tool (3) becomes almost vertical (state shown in FIG. 4), and accordingly, the water lettuce (L) on the squeeze surface part (4) falls to the accumulation place.

  By repeating the operations described above, the water lettuce (L) in the water area can be surely cleared. And, in the aquatic plant removing tool (3) in the present embodiment, the squeeze surface portion (4) is constituted by a plurality of squeeze bar members (8) extending forward, so that the water lettuce (L) removal operation described above is performed. In this case, the scooping surface portion (4) can be smoothly raked and discharged without the water lettuce (L) being caught.

  Next, another embodiment of the aquatic plant removing tool (3) described above will be described. As shown in FIGS. 11 and 12, the aquatic plant removing tool (21) has a main body (22) having a truss structure, It has front and rear triangular frames (23), (24), and connecting frame members (25), (26) that connect the corners of the triangular frames (23), (24). Then, on both side surfaces (22a) (22b), back surface (22c) and bottom surface (22d) of the removal tool main body (22), rod-shaped members (28) extending in the front-rear direction and the vertical direction are provided at regular intervals. Thus, the removal tool main body (22) has a bowl shape with an open front side. The bottom surface (22d) becomes a squeeze surface portion of the water lettuce (L).

  The triangular frames (23) and (24) and the connecting frame members (25) and (26) are both made of square steel pipes, and the rod-like member (28) is made of solid iron.

  A float (29) made of a drum can is attached to the lower part of both side surfaces (22a) and (22b) of the removing tool main body (22) by a pair of front and rear circular strip members (30). More specifically, the circular belt-like member (30) is wound on the portion near both ends of the outer peripheral surface of the float (29), and the end thereof is the connecting frame member (26) and the triangular frame body on the front and rear thereof. (23) It is fixed to the middle frame member (31) secured between the (24).

  On the front surface of the lower frame member (23a) of the front triangular frame (23), a blade body (32) extending forward is protruded at a predetermined interval in the left-right direction. In addition, a square steel pipe suspension arm (33) protruding forward is provided at the upper front corner of the front triangular frame (23), and the suspension arm (33) has a two-member structure. The first member (33A) fixed to the front surface of the upper corner of the triangular frame (23), and the second member (33B) fitted in the first member (33A). The ends of the member (33A) and the second member (33B) are connected by a pin (34).

  Then, as shown in FIG. 13, when removing the water lettuce (L) using the aquatic plant removing tool (21) of the present embodiment, the front and rear ends of the suspension arm (33) of the aquatic plant removing tool (21). If we suspend the left and right frame members of the side triangle frame (24) with the movable wires (35) and (36) of the truck crane (not shown), respectively, The float (29) on the left and right of (21) causes the aquatic plant removal tool (21) to float on the water surface (S), and then moves the truck crane arm (not shown) to remove the aquatic plant removal tool (21). Is moved in the direction of the water lettuce (L), so that the water lettuce (L) is accommodated in the aquatic plant removing tool (21). Thereafter, as shown in FIG. 14, the movable wire (35) connected to the tip of the suspension arm (33) of the aquatic plant removing tool (21) is wound up and the front side of the aquatic plant removing tool (21) is raised. The water lettuce (L) placed on the bottom surface (22d), which is the squeeze surface portion of the aquatic plant removing tool (21), slides backward, and as a result, the water lettuce (L) becomes the back surface (22c) of the aquatic plant removing device (21). Accumulated. Then, by repeating the above-described operation, when a large amount of water lettuce (L) is accumulated in the bowl-shaped aquatic plant removing tool (21), the arm of the truck crane is turned to remove the aquatic plant removing device (21). After moving to the accumulation place of the water lettuce (L), the water lettuce (L) inside is dropped with the front opening of the aquatic plant removing tool (21) directed downward by moving the movable wires (35) and (36) up and down.

  The blade (32) provided on the front surface of the lower frame member (23a) in the triangular frame (23) on the front side of the aquatic plant removing tool (21) is used for removing the water lettuce (L). For cutting tangled water lettuce (L) and other aquatic plants.

  In the aquatic plant removing tool (21) described above, its both side surfaces (22a) (22b), back surface (22c) and bottom surface (22d) are composed of a plurality of rod-like members (28) extending in the front-rear direction or the vertical direction. Therefore, the water lettuce (L) is not caught on these surfaces, and the scooping operation and the removing operation can be performed smoothly.

  According to the present invention, aquatic plants such as water lettuce that have flourished in the water area can be collected in a certain range, moved as it is to the landing site, and landed efficiently with a crane or the like. It can be widely used to remove various aquatic plants in the harbors of the city.

It is a general view which shows the state which suspended the aquatic plant removal tool with the crane. It is a figure which shows the drooping state of the wire in the arm front-end | tip part of a crane. It is the perspective view of the state which made the squeeze surface part of the aquatic plant removal tool substantially horizontal. It is the perspective view of the state which made the squeeze surface part of the aquatic plant removal tool substantially vertical. It is a partial expansion perspective view which shows the rear edge corner | angular part of the squeeze surface part in an aquatic plant removal tool. It is a top view of an aquatic plant focusing tool. It is a figure which shows the contact state of the substantially rod-shaped floating body with respect to the water lettuce of the water surface. It is a top view which shows the towing state of the water lettuce group by an aquatic plant focusing tool. It is a figure which shows the state which scoops water lettuce with an aquatic plant removal tool. It is a figure which shows the state which scooped up water lettuce with the aquatic plant removal tool. It is a perspective view which shows other embodiment of an aquatic plant removal tool. It is a perspective view which similarly shows other embodiment of an aquatic plant removal tool. It is a side view of the state which floated the aquatic plant removal tool on the water surface. It is a side view of the state which lifted the front side of the aquatic plant removal tool.

Explanation of symbols

(1) Truck crane

(2) Arm

(3) Aquatic plant removal tool

(4) Squee face

(13) (14) Hook
(16) Aquatic grass bunch

Claims (9)

  An aquatic plant removing tool having a squib surface portion for scooping aquatic plants and a hooking portion for a suspension wire.   The squeeze part has a U-shaped outer frame when viewed from the plane where the front side is located, and a squeeze bar member provided at a predetermined interval in the left and right direction within the outer frame, and the latching part is erected on the squeeze part The aquatic plant removing tool according to claim 1, wherein the tool is provided at the upper end of the suspended shaft and at both ends of the rear edge of the squeeze surface portion.   The aquatic plant removing tool according to claim 2, wherein a rear wall is erected on the rear edge of the squeeze surface portion.   The main body has a front and rear triangular frame and a connecting frame member that connects the corners of the triangular frame, and a plurality of bar-shaped members extending in the front-rear direction are spaced at predetermined intervals on the left and right side surfaces and the bottom surface of the main body. A plurality of rod-like members extending in the vertical direction are provided at a predetermined interval on the back surface, so that the main body has a bowl shape with an opening on the front side, and the bottom surface of the main body is a squeeze surface portion. The aquatic plant removing tool according to claim 1, wherein floats are attached to both side surfaces.   The aquatic plant removing tool according to claim 4, wherein a plurality of blades extending forward are provided on the front surface of the lower frame member of the front triangular frame at predetermined intervals in the left-right direction.   An aquatic plant focusing tool comprising a plurality of substantially rod-shaped floating bodies and a string-like member that connects ends of adjacent substantially rod-shaped floating bodies.   An aquatic tool that has a rod-like floating body with a thickness that enters the boundary between the leaves and roots of water lettuce.   A method for removing aquatic plants using the aquatic plant removing tool according to any one of claims 1 to 5, wherein a tip of a suspension wire attached to an arm of a landing machine is attached to the aquatic plant removing tool. The aquatic plant removing method is characterized in that the aquatic plant removing tool is suspended by being fastened to a portion, and the aquatic plants on the surface of the aquatic plant removing tool are scooped and moved up and down by an arm turning and lifting operation.   A method for removing aquatic plants using the aquatic plant removing tool according to any one of claims 1 to 5 and the aquatic plant focusing tool according to claim 6 or 7, wherein the aquatic plants clustered on the water surface are treated with aquatic plants. After enclosing with the focusing tool, the aquatic grass focusing tool is pulled by a boat and / or human power to move the aquatic grass to the landing site, and then the tip of the suspension wire attached to the arm of the landing machine is removed. The aquatic plant removing method is characterized in that the aquatic plant removing tool is suspended by being fastened to the latching portion of the water and is collected at the landing site by scooping the aquatic grass on the squeeze surface portion of the aquatic plant removing device by turning and lifting the arm.

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