JPS586932Y2 - Earth-sliding prevention device on both shoulders of a trench excavator - Google Patents

Description

[Detailed description of the invention] In order to prevent the excavated soil piled up on the shoulder of the trench side by the trench excavator from falling into the trench, a frame is provided at the rear of the packet conveyor to prevent the soil from falling into the trench. The present invention relates to a landslide prevention device for a trench shoulder in a trench excavator, characterized in that a landslide prevention plate to which a sliding bridge-like plate is attached is slidably and loosely fitted to the frame.

In recent years, during agricultural land improvement projects, underdrain drainage is one of the important items in order to improve agricultural productivity and modernize and rationalize management. Drainage is often carried out by burying the pipe, but if even a small amount of excavated soil collapses after excavating a culvert, the buried water intake pipe may be partially lifted by the soil, impairing its drainage function.

Therefore, trench excavators have conventionally been equipped with soil-sliding prevention devices, but the position of the soil-sliding device must be adjusted depending on the depth of the trench. This has been done by means such as hydraulic cylinders, but the structure is complicated, the price is high, and the operation is complicated.

Moreover, it is necessary to create a slope when excavating the culvert drainage, but there is no easy way to gradually fine-tune the position of the earth-slide prevention device according to the slope.

This invention has a structure in which the landslide prevention plate with the bridge-like plate attached is loosely fitted to the frame so that it can slide freely, so even if the excavation depth gradually changes depending on the slope, the bridge-like plate will remain on the ground surface. It has a simple structure in which the position of the soil collapse prevention plate is automatically determined by sliding along the boundary between the soft excavated soil that has just been excavated.
The purpose of the present invention is to provide an excavator that prevents soil from collapsing on the shoulder of the ditch and excavates a ditch for drainage.

In order to achieve the above object, the present invention has the following configuration.

The embodiments shown in the drawings will be described in more detail below.

FIG. 1 is a side view of the entire excavator, in which a main body 2 having an engine section and a control seat, and an excavator section 3 which is movable up and down are provided on the upper part of a running section 1 having crawlers.

The excavator section 3 is held by an arm 10 having a fulcrum on the main body 2, and is moved up and down by rotation of the arm 10 to adjust the depth of excavation.

For excavation, the conveyor 4 is engaged with the drive wheels, the packets 5 fixed to the conveyor 4 are used to excavate, and the excavated soil is transported to the upper part and further lifted up by a lifting mechanism (not shown) and the earth removal plate 9, etc. to a certain level. move it to a location.

Furthermore, there is a frame 6 located at the rear of the conveyor 4, and a groove bottom finisher 7 is provided at the tip of the frame 6, which smoothes the groove bottom to create a smooth slope.

The landslide prevention device equipped with the bridge-like plate of the present invention is installed in a slidably loose fit on the frame 6.

2 to 4 are enlarged views of the landslide prevention device and its installation, showing a side view, a rear view, and a top view, respectively.

There are projecting parts 8 on the left and right sides of the frame 6, to which the landslide prevention device is slidably attached.

The landslide prevention plate 11 has a wing-like shape and extends diagonally backward from the portion facing the front of the frame.

This part is constructed from a single iron plate, and the lower tip of the wing is sloped so that the top of the excavation rises like a ridge.

If the left and right soil-sliding prevention plates 11 have the same shape on the left and right, or have a structure in which most of the excavated soil falls on the earth-discharging plate side, it is more rational to make the earth-discharging plate side larger.

The attachment to the frame can be achieved by welding the attachment plate 13 shown in FIG. 3, or by bending the iron plate part so that the overhanging part 8 of the frame can be slid from the front and back.

The gutter-like plate 12 is attached to the lower part of the landslide prevention plate 11 by welding or the like, and its front end is sloped upward so that it can slide on the ground surface.

As explained above, the present invention provides an earth-slide prevention plate on both shoulders of a groove in a trench excavator, which is characterized in that an earth-slide prevention plate to which a bridge-like plate is attached is slidably and loosely fitted to the frame. Since it is a prevention device, it has the following effects.

As the rod-shaped plate slides on the ground surface, the position of the soil-sliding prevention plate is automatically determined based on the ground surface of the field, so there is no need to take depth into account and manually adjust the position using screws. Since the structure is simple and does not require a complicated structure such as a hydraulic cylinder, the cost can be reduced and failures do not occur.

[Brief explanation of the drawing]

FIG. 1 is a side view of a trench excavator according to an embodiment of the present invention, and FIGS. 2 to 4 are a side view and a rear view of a landslide prevention device, respectively.
A plan view is shown. 1... Traveling part, 2... Engine and control seat body, 3... Excavation equipment part, 4...
...Conveyor, 5...Packet, 6...
・Frame, 7... Groove bottom finisher, 8...
・Overhanging part, 9... Earth removal plate, 10...
・Arm part, 11...Earth-sliding prevention plate, 12...
...Bridge plate, 13...Mounting plate, 14...
・・Stotsunos−

Claims (1)

[Scope of utility model registration request] In an excavator for excavating a culvert, which discharges the excavated packets with a discharge plate at the upper end of the packet conveyor, a frame is installed in parallel with the packet conveyor at the rear of the packet conveyor, and a bridge plate that slides on the ground surface is attached. 1. An earth-sliding prevention device for a groove-side shoulder in a trench excavator, characterized in that a soil-sliding prevention plate is slidably and loosely fitted to the frame.