JPH0324533B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The invention of this application relates to a bucket device for scooping up hard earth and sand and an excavation bucket device.

Conventionally, when scooping relatively soft earth and sand, it has been possible to scoop the earth and sand using a general power shovel or a similar bucket device, but if the earth and sand is hard, a general power shovel or a similar bucket device can be used to scoop out relatively soft earth and sand. The bucket equipment had the drawback of not being able to scoop out the dirt and sand reliably.

In addition, in order to scoop up submerged sediment, especially hard submerged submergence, the water that is with the sediment moves in a confused state when scooping up the sediment, so the sediment also moves as the water moves.
It is difficult to reliably hold the submerged soil in the bucket, and it is extremely difficult to reliably raise the bucket while the bucket continues to scoop from the bottom of the water to the surface. When the bucket was raised, the water inside the bucket was drained out of the bucket along with the soil, resulting in a very small amount of soil remaining inside the bucket.

The invention of this application aims to eliminate the above-mentioned drawbacks.

Next, the specific structure for achieving the above object will be explained with reference to the drawings. The composite bucket structure is composed of a main bucket and an opening/closing bucket that have curved bottom surfaces facing each other in the front and rear directions and are closed in a bivalve shape in a closed state. A pivot part for opening and closing the bucket of these composite bucket structures is provided on the main body bucket side above the body, and a hydraulic, spring type, or other power device for opening and closing the bucket is provided near the pivot part. A bucket opening/closing device is provided, the width of the facing composite bucket trunk structure is approximately twice the depth in the front and back direction of the bucket, and a wear-resistant material made of rubber or synthetic resin is attached to the edge of the side wall of the bucket. an elastic material is disposed, a digging claw is disposed at the lower tip of the bucket, a large number of small openings in the shape of a round, square, rhombus, or hexagon are disposed on the wall of the bucket; The center of gravity of the entire structure is located below the approximately central position of the pin holes provided at the front and rear upper ends of the main body buckets, and each Ensure that the bucket is positioned in the closed position, and that the
An excavation hole is provided at the lower tip of the main bucket, facing vertically from the pivot point for opening and closing the bucket, which is located at a lower position midway between the pin holes provided at the front and back of the upper end of the main bucket. With the opening/closing bucket opened with respect to the main body bucket by the bucket opening/closing device, the excavating claw provided at the lower tip position of each bucket of the composite bucket structure is opened. Both are a bucket device for scooping up hard earth and sand and a bucket device for excavating.

Next, to describe the effects resulting from the above configuration, the bucket device of the invention of this application is suspended by a steel cable, suspended in a relatively deep place, and then opened to grasp the earth and sand. It is suitable for use in excavating even relatively hard earth and sand, and has the effect of making it possible to excavate relatively hard earth and sand with the digging claw and to reliably scoop earth and sand into the inside of the bucket. In addition, by narrowing the width of the bucket to reduce the difference in the resistance of dirt to the claws on both sides of the bucket, the entire bucket can be filled with dirt evenly during the process of operating the bucket from the open state to the closed state. It has the effect of making you feel moisturized.

In addition, by opening a large number of small holes in the bucket, not only does it reduce the weight of the bucket and reduce power costs, but it also prevents most of the dirt and sand from spilling out from the openings. Moreover, even in the case of underwater work such as dredging work, there is an effect that soil can be reliably scooped up with the bucket while allowing the water in the bucket to flow out from the opening part.

Furthermore, in the present invention, the main bucket and the opening/closing bucket, which have curved bottom surfaces with respect to each other in the front and rear directions, are closed in a bivalve shape in the closed state. There is no need to scoop it up and carry it, the closed state is reliable, and there is no risk of the earth and sand contained inside falling downward. In addition, the present invention is arranged such that the center of gravity of the entire structure is located below the approximately central position of the pin holes provided at the front and back positions of the upper end of the main body bucket, so that the center of gravity of the entire structure is located below the approximate center position of the pin holes provided at the front and rear positions of the upper end of the main body bucket. Since each bucket is positioned in a closed position at the bottom, when excavating hard earth and sand, it is possible to reliably point the excavation claws provided at the lower tip of each bucket downward. effective. Particularly in underwater situations, even if the water flow resists the bucket device, the lower tip of each bucket with its excavating claws can be reliably oriented downward to scoop up dirt from the bottom of the water. In addition, the present invention is
Normally, the excavation is provided at the lower tip of the main bucket, facing vertically from the pivot point for opening and closing the bucket, which is located at a lower position midway between the pin holes provided at the front and back positions on the upper end of the main bucket. Since the opening/closing claw part is positioned so that when the opening/closing bucket is opened relative to the main bucket, when the opening/closing bucket opens to one side based on the pivot part for opening/closing the bucket, the main bucket can be opened. The excavating claw portion located at the lower tip moves to the opposite side, which has the effect of making it easier to open the lower side of the device body and perform soil scooping and excavation work.

In addition, when scooping or excavating hard earth and sand, it is possible to prolong the life of the bucket by placing a wear-resistant and elastic material made of rubber or synthetic resin on the edge of the side wall of the bucket, which is subject to relatively heavy wear and tear. Desirably, appropriate reinforcement measures must be taken into consideration for parts that are subject to particularly severe wear in order to maintain durability or enhance weather resistance, if necessary.

In addition, it is preferable to pass a pin through the pin hole provided at the front and back positions of the upper end of the main bucket, and use it as an intermediary body so that the pin can be suspended by a steel cable.
It is also possible to engage the pin in the appropriate position of the crank mechanism provided at the tip of the arm of the power shovel.The hard soil scooping bucket device and excavating bucket device of the present invention can be used in consideration of the optimal usage conditions depending on the nature of the construction work. It is desirable to use it.

[Brief explanation of the drawing]

Fig. 1 is a front view of the soil scooping bucket device and excavation bucket device according to the present invention, Fig. 2 is a side sectional view of Fig. 1, and Fig. 3 shows the shape of the opening of the bucket. 3A, 3B, 3C, and 3D show the shapes of the respective openings. 1...Body bucket, 2...Opening/closing bucket, 3
... Pivotal part for opening and closing the bucket, 4... Power device for opening and closing the bucket, 5... Excavation claw, 6...
Bucket wall, 7...small opening, 8...front pin hole, 9...rear pin hole.

Claims (1)

[Claims] 1. A main body bucket and an opening/closing bucket, each having a curved bottom surface in the front-rear direction, are closed in the form of a two-piece structure. A pivot part for opening and closing the bucket of the structure is provided, a desired bucket opening/closing device is arranged near the pivot part, and the width of the facing composite bucket part structure is made relatively narrow, and the composite bucket part structure is A digging claw is provided at the lower tip of each bucket of the composite bucket structure, and a large number of small openings in the shape of a round, square, diamond, or hexagon are provided on the wall surface of each bucket of the composite bucket structure. The center of gravity of the entire structure is located below the approximately central position of the pin holes provided at the front and back of the upper end of the main body bucket, and each bucket is positioned in a closed state, and normally faces vertically from the pivot for opening and closing the bucket, which is located at a lower position between the pin holes provided at the front and back positions of the upper end of the main bucket. The excavating claw provided at the lower tip of the main bucket is located at the lower position, and the composite bucket structure is opened with the opening/closing bucket opened with respect to the main bucket by the bucket opening/closing device. A bucket bucket device for scooping hard earth and sand and an excavating bucket device, in which digging claws disposed at the lower end of each bucket can both be directed downward.