JPH0447224Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a cleaning device equipped with a bucket device for cleaning water intakes that automatically removes dust accumulated in water intakes of dams, waterworks, etc.

(Prior Art) Conventionally, as this type of water intake port cleaning device, those shown in FIGS. 6 and 7 have been used.

In FIG. 6, a is a water intake of a dam, etc., and a screen c for removing dust is provided on the water inflow side. The rakes d are attached at regular intervals to an endless belt-like member such as a chain or wire, and are designed to grasp and scrape up the dust accumulated between the screens.

The one shown in FIG. 7 is of a rake type in which the rake d is lowered by its own weight, e is a wire rope for opening and closing, and f is a wire rope for hoisting.

(Problems to be solved by the invention) However, with the so-called chain rake type or wire rake type as shown in Figure 6, large objects such as driftwood logs, miscellaneous trees, bamboo, etc. cannot be raked up. If the lifting height is high, the raked material may fall due to vibration, etc. When not in operation, rakes, raking chains, etc. act as unnecessary resistance to water intake, and sometimes debris gets caught in the chain, making it difficult to move.

Moreover, when the garbage is settled at the bottom of the screen, it is impossible to scrape it up as shown in FIG.

Furthermore, in the case of the so-called rope type shown in FIG. 7, when there is a large amount of garbage, the rake cannot enter the garbage with its own weight alone, and therefore cannot be raked up sufficiently.

(Means and effects for solving the problem) This invention is a solution to the above problem, and it is designed to pivot a plurality of fixed claws located on the screen side and a plurality of movable claws located on the upstream side. Attach a bucket bag consisting of the following to the tip of the lift boom, and install the front part of the tip of the fixed claw at a position set back from the upstream side to the downstream side by a certain amount with respect to the front surface of the screen, The tip of the movable claw is configured so that when the movable claw is closed, it can move from the upstream side to the downstream position by the above-mentioned fixed size with respect to the front surface of the screen, and large-sized garbage can be moved to both claws. This makes it possible to scrape up by grasping and holding it in a clamp-style manner, preventing it from falling, and also reliably grasping relatively small pieces of dirt.The movable claw can be grounded to the bottom of the water to scrape up dirt that has accumulated at the bottom. It can be cleaned powerfully and reliably.

(Example) An example of this invention will be described below based on the drawings.

1 and 2 show a side view and a front view of a cleaning device equipped with the cleaning bucket device of this invention. In these figures, 1 is a frame installed above the water intake, 2 is a tilt boom, 3, 4, 5 are lift arms, 3', 4', 5' are hydraulic lift cylinders, and 6 is a lift boom 5. A bucket attached to the tip, 7 is a screen.

The lift booms 3, 4, and 5 are extended and contracted in three stages by hydraulic lift cylinders 3', 4', and 5', which move the bucket 6 up and down as appropriate, and also move the bucket 6 up and down as needed.
1, the tilt boom 2 is operated, and when not in operation, the bucket 6 is moved to the standby position shown by A in FIG. 1, and the bucket is held at a position above the water surface. In this way, unnecessary resistance is eliminated and water flow through the screen 7 is improved.

In addition, 8 is a control member, 9 is a control frame, 1
0 indicates a hydraulic unit/electric motor, and 12 and 13 indicate water level sensors.

3 to 5 show details of a clamp-type raking structure of a bucket device using movable claws and fixed claws, which are the main parts of an embodiment of this invention. 6a is a movable claw located on the upstream side, and 6b is a fixed claw located on the screen 7 side and installed in each gap of the screen 7. The movable claw and the fixed claw are attached at 6c, and the movable claw 6a is moved by the hydraulic cylinder 15 relative to the fixed claw 6b to open and close the claw and clamp the garbage. The front surface of the tip of the fixed claw 6b is the third
As is clear from the figure and FIG. 5, it is installed so as to be located at a position set back from the upstream side to the downstream side by a dimension with respect to the front surface of the screen 7,
When closing the movable claw 6a, the tip of the movable claw 6a can be moved to a position that is a dimension downstream from the upstream side with respect to the front surface of the screen.
Therefore, even if dirt has settled at the bottom of the screen, the movable claw 6a can touch the bottom of the water, and can reliably grasp comparatively fine dirt such as aquatic plants and vinyl wrapped around the front of the screen without pushing it downward. In particular, it is possible to reliably scrape up even the dirt at the bottom.

Moreover, since the bucket 6, which is composed of a movable claw 6a and a fixed claw 6b, is moved up and down by the force of the hydraulic lift cylinder 5', the movable claw 6a and the fixed claw 6b sink into the garbage with a strong force, and remove the garbage. You can grab it and fry it.

Incidentally, reference numeral 16 denotes a comb-shaped presser tooth, which is attached to the tip of the movable claw 6a to maintain a constant distance between the plurality of movable claws and to rotate the movable claw 6b toward the fixed claw 6a. It also functions as a stopper to hold the movable claw in place when picking up trash.

In the embodiment of this invention, the rake-up structure uses a clamping method using fixed claws and movable claws as described above, so it can grasp and hold large objects such as driftwood logs, miscellaneous trees, bamboo, etc., and has a high lifting height. It can also prevent large pieces of debris from falling.

(Effects of the invention) This invention is made as detailed above, and since the bucket device has a clamping structure with a fixed claw and a movable claw, it can grasp and hold large objects such as driftwood logs, miscellaneous trees, bamboo, etc. Therefore, large-sized garbage can be easily and reliably raked up, and even if the lifting height is high, the raked-up large-sized garbage can be prevented from falling.

In addition, the bucket device is attached to the tip of the lift boom and is moved up and down by the force of a hydraulic lift cylinder, so the claws of the bucket can penetrate into the garbage with strong force, grasping the garbage, and scraping it up. can.

When not in operation, the bucket device is placed on standby at a position above the water surface, thereby preventing unnecessary resistance to water intake and improving the flow of water through the screen.

In particular, the front part of the tip of the fixed claw is set back a certain amount downstream from the upstream side with respect to the front of the screen, so you can compare aquatic plants, vinyl, etc. that wrap around the front of the screen. It is possible to securely grasp fine dirt without pushing it upward, and when the movable claw is closed, the movable claw can touch the ground to the bottom of the water, and even the dirt that has sunk to the lowest part can be easily scraped up.

[Brief explanation of the drawing]

FIGS. 1 and 2 show a side view and a front view, respectively, of a water intake opening cleaning device equipped with the cleaning bucket device of this invention. Figures 3, 4, and 5 show partial views of the bucket device, which is the main part of the embodiment of this invention, respectively, with Figure 3 being a side view, Figure 4 being a perspective view, and Figure 5 being a perspective view. FIG. 3 is a sectional view taken along line XX in FIG. 3; 6th
7 and 7 schematically show two types of conventional devices, and FIG. 8 schematically shows the case of scraping up garbage accumulated on the bottom of water using the device shown in FIG. 6. 5...Lift boom, 6...Bucket, 6a...
...Movable claw, 6b... Fixed claw, 7... Screen.

Claims (1)

[Scope of utility model registration request] A bucket consisting of a plurality of fixed claws and a plurality of movable claws are attached to the tip of the lift boom so that the fixed claws are located on the screen side and the movable claws are located on the upstream side. A bucket device for cleaning a water intake port, characterized in that the front part of the tip of the claw is located at a position set back from the upstream side to the downstream side by a certain amount with respect to the front surface of the screen.