JPS592204Y2 - Backfilling equipment for trenchers - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a backfilling device that is capable of automatically backfilling soil dug up by a trencher used for excavating a trench for burying a drainage pipe.

According to conventional trenchers, a drainage pipe is automatically laid in the trench at the same time as the trench is excavated, and permeable materials such as rice husks are automatically buried on top of the pipe at the same time. The work of backfilling the raised soil was done later by a separate operation such as a rotary machine, which was inefficient.

The present invention improves the above-mentioned conventional problems and provides a backfilling device with a simple configuration that can automatically backfill excavated embankments at the same time as installing underground drainage pipes and burying permeable materials. The main feature of this system is that a trencher is provided with a tank for storing a water-permeable material, and the water-permeable material is allowed to fall freely from an outlet at the bottom of the tank into a groove excavated by the trencher. , backfilling means is provided for dropping the embankment excavated by the trencher into the trench behind the feeding outlet, and the backfilling means is arranged in left and right sides in a substantially V-shape in close proximity to each other in the rear direction. It consists of a pair of backfilling plates and a stay for attaching the backfilling plates to the machine frame side of the trencher.

An embodiment of the present invention will be described below with reference to the drawings. In the drawings, reference numeral 1 indicates a tractor, and reference numeral 2 indicates an L-wrencher mounted to the rear of the tractor by a connecting mechanism 3 such as a three-point link so as to be able to be raised and lowered.

The trencher 2 includes a machine frame 4, a drive device 5, an excavation device 6, etc., and power from the I-tractor 1 is transmitted to the drive device 5.

The excavation device 6 has a driving sprocket, a driven sprocket, a guide sprocket, etc. on a beam 7, and a chino is hung on these sprockets.A large number of excavation blades are arranged in a row on a circulating body 8 such as a chino.

The excavating device 6 is circulated in the direction of arrow A in FIG.

Reference numeral 9 denotes an excavation cover, which is supported by the machine frame 4, beam 7, etc. behind the rotating body 8, and extends along the rotating body 8.

This excavation cover 9 has a groove bottom leveling part 9a formed in its lower part, and this leveling part 9a is fastened at the upper part with two pins 10.11, and can be raised and lowered by freely inserting and removing one of the pins. has been done.

Reference numeral 12 denotes excavation auxiliary covers, which are shelled in pairs on the left and right so as to protrude rearward at a midway point in the longitudinal direction of the excavation cover 9, and these auxiliary covers 12 connect a tank 13 containing rice husks as a water-permeable material to the machine frame 4. We work together to support.

The tank 13 is equipped with a shutter 15 at the outlet 14 at the bottom, and when the shutter 15 opens, the rice husks E flow through the outlet 14.
The left and right auxiliary covers 12 are designed to be able to fall through between them.

In addition, this auxiliary cover 12 is provided to extend further rearward than the outlet 14 so that the soil F dug up on both sides of the trench B does not fall into the trench B before the rice husks E. be.

Reference numeral 16 denotes a pipe drainage device for underground draining, which allows a pipe 18 for draining underground that is wound around a support base 17 supported on the machine frame 5 in front of the tank 13 to be fed out rearward along the excavation cover 9. .

A pipe guide roller 19 for feeding the pipe 18 along the bottom of the excavation groove is attached to the leveling section 9a.

20' indicates the soil removal cover. Reference numeral 20 denotes backfilling means, which includes a pair of left and right stays 20.21 and a pair of left and right embedding plates 22.2.
2, the front end of each of the stays 21, 21 is attached to the machine frame 4 or the auxiliary cover 12, etc., and extends rearward in a shape that expands outward from side to side.
A backfill plate 22, 22 is attached to the rear end of the back end 2, respectively.
2a and 22a are installed in a substantially V-shape so as to be close to each other and face toward the inner excavation groove B.

According to the structure of the above-described embodiment of the present invention, as the tractor 1 moves forward, the excavating blade of the excavating device 6 scrapes up the soil and digs the trench B, and the underground drainage pipe delivery device 16 excavates the drainage pipe. 18 is laid on the bottom of the groove leveled with the leveling plate 9a, and at the same time, the tank 13 is laid.
The rice husks E fall down and are buried on top of the drainage pipe 18 on the bottom of the trench, and the embankment F dug up on both sides of the trench B by the backfilling plate 22 is placed on top of the rice husks E in the trench B. This means that groove B is automatically refilled.

As described above, the backfilling board 22 installed in a substantially V-shape
．． 22 allows for easy and sufficient backfilling, and the backfilling means 20 has a simple structure consisting of a pair of stays 21.21 and backfilling plates 22.22, and is easy to manufacture.

In addition, the backfilling means 20 can be configured to be small and lightweight, so that even if the trencher 2 is provided with the backfilling means 20, the rear of the trencher 2 does not become excessively heavy, and the trencher 2 can be lifted and lowered without any hindrance.

The backfilling means 20 may be removably mounted so that it can be removed when backfilling is not required.

This invention has a backfilling means attached to the machine frame side of the trencher that drops the embankment excavated by the trencher into the trench behind the outlet of the tank that stores the permeable material, and automatically fills the excavated soil. The backfilling process can be carried out efficiently and satisfactorily, and since the backfilling means consists of a pair of backfilling plates and stays, the backfilling means can be made small and lightweight. , the trencher 2 can be raised and lowered without any trouble.

Furthermore, it has the advantage of having a simple configuration and being easy to manufacture.

[Brief explanation of the drawing]

FIG. 1 is a side view of the proposed device, and FIG. 2 is a plan view of the main part. 2...Trencher, 13...Tank,
14... Feeding outlet, 20... Backfilling means, 21... Stay, 22... Backfilling board.

Claims (1)

[Scope of utility model registration request] A tank 13 for storing a permeable material E is provided in the trencher 2, and the trencher 2 is
A backfilling means 20 is provided for dropping the embankment F excavated by the trencher 2 into the trench B behind the feeding port 14, and The backfilling means 20 includes a pair of left and right backfilling plates 22.22 arranged close to each other in the rear direction in a substantially V-shape, and the backfilling plates 22.22 are attached to the machine frame 4 side of the trencher 2. A backfilling device for a trencher, comprising a stay 21 and a stay 21.