JP3353095B2 - Excavation bottom maintenance method and its equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excavation bottom maintenance method and an apparatus for use in maintenance of an excavation bottom using laser equipment.

[0002]

2. Description of the Related Art Conventionally, there has been a method of excavating along a laser beam emitted from a laser measuring machine in order to flatten the excavation bottom surface when excavating with a drilling machine such as a backhoe for burying pipes or the like. is there.

In this method, an operator adjusts a laser beam emitted from a laser measuring machine installed at a predetermined reference point so that a worker supports a staff or a stupid stick with his / her hand and irradiates the staff with the laser beam. , while viewing the laser spot of the staff, along which, and how the operator of the excavator that advances the drilling operation, a predetermined bucket of the excavator
The light receiving means is provided at a position, operating Les signals from the light receiving means
The operator of the excavator along the
And a method over others proceed with the excavation work.

In the former method, the worker must move the staff as the work progresses and repeat the work until a predetermined excavation work is completed. Therefore, the operator of the excavator to do the work
In addition to over, unless the charge and those of the workers one more person for this task
Rather, it requires human labor.

In the latter method, the light receiving device is used in the latter method.
Ground angle of the bucket of the attached excavator, absolute to the drilling surface
There was a problem that it had to be constant .

The present invention has been made in view of the above circumstances, and when performing excavation work with an excavating machine such as a backhoe, the excavating machine receives a laser beam emitted from a laser measuring machine at a target. The purpose is to accurately and promptly maintain the bottom of the excavation with only one operator.

[0007]

The excavating bottom maintenance target of the present invention receives the laser beam emitted from a predetermined reference point while the excavator operator proceeds with the work alone. We are taking measures.

That is, the target plate is provided independently, and a laser beam can be visually recognized from both sides. The target plate has a horizontal scale and a weight at a lower end. At any position above the vertical center of gravity passing through the horizontal center of gravity on the target plate,
The target plate is rotatably connected to a support attached to the base plate, and the horizontal scale of the target plate can be automatically kept horizontal. The column is fixed vertically to the base plate, and the base plate has an installation area and weight that do not easily fall down due to vibration during excavation. Further, an arm is attached to the base plate, and a gap is provided between the target plate and the arm such that claws of an excavating machine such as a backhoe can pass through.

[0009] The target plate of the target for maintenance of an excavated bottom surface according to the present invention is rotatably connected to the column at an arbitrary position above the vertical center of gravity passing through the horizontal direction. The marked horizontal scale always indicates the horizontal level, regardless of the state of the target body for drilling bottom maintenance , and the laser beam to be received can be confirmed at any position on the horizontal scale line. it can.

[0010] Further, the work of flattening the excavated bottom surface with an excavating machine such as a backhoe is to extend the excavated bottom surface to the backhoe side when the target body for excavated bottom maintenance is viewed from the place where the laser measuring machine is installed. In accordance with the progress of the work, it is necessary to sequentially move, but in the excavation bottom surface maintenance method and the apparatus according to the present invention, the nail of the excavation machine such as a backhoe is attached to the arm attached to the excavation bottom surface maintenance target body. The base plate of the target body for excavation bottom surface maintenance has an installation area and weight that do not easily fall down due to vibration during excavation. So
It is very stable and does not fall down.

【Example】

An excavating bottom maintenance target according to an embodiment of the present invention will be described below with reference to the drawings. Of course, the present invention is limited to the specific configuration of this embodiment. is not.

As shown in the perspective view of FIG. 1, an excavating bottom maintenance target 9 according to one embodiment of the present invention connects a target plate 1, a base plate 4, and the target plate 1 to the base plate 4. It is composed of a column 7 and an arm 5 extending upward from both ends of the plane of the base plate 4 to form an arch.

Further, the target plate 1 is provided with a horizontal scale 2, a weight 3, and a level unit 6.

The support 7 is vertically erected from the center of the base plate 4, and a hole provided at the upper end of the support 7 and a y-axis direction passing through the center of gravity of the target plate 1 in the x-axis direction. The target plate 1 is rotatably fixed to the support column 7 by inserting the pin 8 at a position where the hole is provided at an arbitrary position above the center of gravity of the target plate.

As shown in the side view of FIG. 2, in the operation, first, a laser measuring machine 10 having an automatic leveling function is aligned with a reference point on the bottom surface of the excavation by a known method, and excavation is performed. Emits a vertical laser beam.

Next, the operator of the backhoe 11 hooks the arm 5 of the target 9 for maintenance of the excavation floor with the claw of the backhoe 11 and lowers it on the bottom of the excavation in front of the laser measuring machine 10.

The arm 5 has an arch shape, but is not limited to this shape. In short, the arm 5 can be of a semicircular shape, an elliptical shape, or a key shape if it can be hung with a hook of a backhoe and hung. Is also good.

[0018] Operator backhoe 11, so that it can receive the laser beam on the target plate 1, but adjusting the (substantially central portion of the drilling bottom) location of the drilling bottom servicing target, in this work, for example, posts 7 When the installation location is low, it is extended, and when it is high, it is retracted, so that the laser beam matches the horizontal scale 2 of the target.

When the installation surface is inclined by a slope or a stone, the arm 5 is held down by the claws of the backhoe 11 while looking at the leveler 6, and the target 9 for excavation bottom surface maintenance is removed.
Can be in a state close to a horizontal state.

As described above, since the laser beam applied to the target plate 1 indicates the reference point, the excavation operation is performed by the backhoe 11 with reference to the reference point.

When the excavation operation proceeds and the beam of the laser beam irradiated on the target plate 1 moves away from the excavation point and it becomes difficult to visually recognize the reference point, the excavation bottom surface maintenance target 9 is moved by the above-described method. Lift, move to the backhoe side, and install.

Until the excavation of the planned ground is completed,
The operations described in 18 to 0021 are repeated.

【The invention's effect】

As described above, according to the present invention, when the excavation bottom surface is maintained using a laser measuring machine, it is possible to reduce labor costs, perform high work efficiency, and perform high-precision excavation work.

That is, when excavating, the target plate receiving the laser beam as a reference point is rotatably connected to the base plate via the support, so that a horizontal reference line can be easily obtained. Since the base plate is provided with an arm which can be hooked by a hook of an excavating machine such as a backhoe, the operator can lift it alone and drop it on the bottom of the excavation.

When the base plate is dropped on the bottom of the excavation, the base plate is about half the size of newsprint, for example, and has a weight that cannot be easily moved by human power. No problem, and firmly support the target plate to keep it stable.

Accordingly, it is not necessary for the worker to support the staff and receive the laser beam with the progress of the work, so that the labor cost can be reduced.

According to the present invention, as compared with the conventional method, the working accuracy can be more accurate and the effect of cost reduction can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of the apparatus of the present invention.

FIG. 2 is a side view of an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Target plate 2 ... Horizontal scale 3 ... Weight 4 ... Base plate 5 ... Arm) 6 ... Leveler 7 ... Prop 8 ... Pin 9 ... Target for digging bottom maintenance 10 ... Laser measuring machine 11 ... Backhoe

Claims (4)

(57) [Claims] 1. A pipe burying construction, etc., drilling in the drilling machine such as a backhoe, when servicing a drilling bottom at a predetermined depth, and laser measuring instrument is installed with independent, and, the laser beam Both sides
Use a target having a target plate that can be seen from the drilling bottom maintenance method of working is more accurate and the operator can perform alone. 2. The method according to claim 1, wherein the target plate is horizontally aligned on a vertical line.
The scale and the lower end are provided with weights. And
At any position above the position of the center of gravity that passes through the vertical direction, it is rotatably connected to a support attached to the base plate, and the horizontal scale of the target plate is automatically leveled.
It can be kept. Struts are projected from the base plate
And fixed vertically to the base plate.
Between the over g e t preparative plate and the arm, the drilling of such backhoes
There is a gap that allows the nail of the machine to slip through
And it is drilling the bottom settling 備用target. 3. The target for maintenance of an excavated bottom according to claim 2, wherein a level is attached to the base plate in order to hold the target body for maintenance of the excavated bottom substantially horizontally. 4. The excavating bottom maintenance target according to claim 2, wherein the column is vertically expandable and contractible.