JPS592186Y2 - Drainage pipe burying machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a drainage management construction machine for forming culverts in agricultural land.

This type of working machine is equipped with a trench excavator and a porous drainage pipe laid in the bottom of the trench formed by the trench excavator, and is towed by a tractor to dig a continuous trench. It is well known to follow this by laying a drainage pipe in the bottom of the trench and then covering the trench with soil to form an underground ditch.

Therefore, water penetrating into the soil enters the drain pipe through the pores on its circumferential surface, is guided by the drain pipe, and is discharged to a predetermined position.

However, since the drain pipe is located in the trench and is directly covered with soil, there is a problem that the pores of the drain pipe become clogged, making it impossible to achieve the intended purpose.

For this reason, in recent years, proposals have been made to solve this problem by dropping granular materials such as rice husks to promote drainage when laying the drain pipes so that the granular materials are positioned around the buried drain pipes. ing.

However, when granular materials are simply thrown into a drain pipe in a random manner, the granular materials are not properly interposed between the drain pipe and the bottom of the ditch, and the pores at the bottom of the drain pipe are not visible. There is a problem that clogging occurs and the expected effect cannot be fully achieved.

If the granular material is dropped before the drain pipe touches the bottom of the ditch, the granular material can be interposed between the drain pipe and the bottom of the ditch. Of course, it is not possible to scatter granular material from the side to the top, and the drainage pipe is bent up and down due to the large amount of granular material thrown onto the bottom of the ditch, allowing water that has entered the drain pipe to be properly guided and discharged. There is a problem that cannot be solved.

In view of the above, the present invention provides a tank for dropping granular material with a first dumping port and a second dumping port, and a relatively small amount of granular material dropped from the first dumping port is placed between the drain pipe and the trench bottom. intervene,
In addition to forcing water to properly enter the drain pipe from the bottom without bending the drain pipe, the relatively large amount of granular material dropped from the second outlet allows the granular material to flow through the drain pipe after it has been laid. To provide a drainage management construction work machine which enables ideal drainage from buried drainage pipes after covering with soil by distributing wastewater appropriately from the circumferential side to the upper part of the soil. It is a purpose.

Therefore, its features include a trench excavator, a porous drainage pipe laid on the bottom of the trench formed by the trench excavator, and a large number of granular materials for promoting drainage being dropped and spread on the drainage pipe. In a work machine equipped with a tank, the tank is located at the front of the work machine in the direction of movement and above the ungrounded part of the drain pipe, and has a first drop port through which a relatively small amount of granular material is dropped. In addition, a second discharge port is provided at the rear in the direction of travel and above the ground contact portion of the drain pipe, through which a relatively large amount of granular material is discharged.

One embodiment of the present invention will be described below in detail based on the drawings. A drainage management equipment work machine 1 is towed by a tractor 3 via a three-point linkage mechanism 2, and an auger is attached to the front of the machine frame 4. It is equipped with a trench excavator 5, a drainage pipe 7 wound upward via a support 6, and a tank 8 at the rear.

The auger trench excavator 5 includes an auger 9 and an auger tube 10, and is driven from the PTO shaft of the tractor 3 via a universal joint (not shown).
The trench excavator 5 may be of a conveyor type instead of an auger type.

The machine frame 4 of the working machine 1 has a bracket 12 fixed at its front end equipped with a gauge device 11 such as a gauge wheel for adjusting and setting the excavation depth of the trench excavator 5, and although not shown in the figure, Preferably, soil covering plates for covering the trench 13 formed by the trench excavator 5 with soil are provided on both sides of the rear of the machine frame 4.

The drain pipe 7 is a porous hose called a so-called corrugated pipe that has a large number of pores 14 on its circumferential surface, and is suspended from between the trench excavator 5 and the tank 8, and is towed by the tractor 3. As the machine 1 advances, a non-contacting part 16 that is bent and tilted rearward just before it touches down on the trench bottom 15, and a grounding part 17 that contacts the trench bottom 15 behind the non-contacting part 16 are formed and are continuous. and laid on the trench bottom 15.

The tank 8 is provided with a drop tube 20 in communication with the lower part of a hopper that stores the granular material 18 for promoting drainage such as rice husks, and a drop tube 20 is installed at the boundary between the hopper 19 and the drop tube 20 to block communication between the two. A shutter 21 that can be freely pulled out from the rear is provided.

The drop tube 20 is moved in a traveling direction F towed by the tractor 3.
On the other hand, a porous regulation plate 22 is fixed to the front wall of the cylinder 20 and extends from a position near the shutter 21 to approximately the front and back center of the lower opening, and the lower opening defined by this regulation plate 22 The front part is the first drop-in port 23, and the rear part is the second drop-in port 2.
4, the first drop-in port 23 is installed above the ungrounded part 16 of the drain pipe 7, and the second drop-in port 24 is installed above the grounded part 17 of the drain pipe 7.

Although the regulating plate 22 is shown as a plate material having a large number of pores 25 for regulating the amount of granular material 18 passing through in the illustrated example, it may be a net material having an appropriate mesh.

According to the present invention based on the above embodiment, the working machine 1 towed by the tractor 3 excavates and forms the trench 13 with the trench excavator 5, and subsequently lays the drain pipe 7 in the trench bottom 15. The granular material 18 is dropped and dispersed from above the drain pipe 7 to be laid by the tank 8, and then the trench 13 is covered with soil with a soil covering plate, and the drain pipe 7 is continuously buried in the agricultural land.

When dropping the granular material 18, if the shutter 21 of the tank 8 is pulled out backward, the granular material 18 in the hopper 19 will fall into the drop tube 20, and a uniform specific amount of small amount A of the granular material 18 will pass through the regulation plate 22. An unspecified amount of granular material 18 is dropped from the first drop port 23 through the second drop port 24 and freely falls through the internal space of the drop tube 20 without being restricted by the regulating plate 22 .

At this time, a small amount A of the granular material 18 dropped from the first dropping port 23 is scattered on the ungrounded part 16 of the drain pipe 7 and the groove bottom 1
5 and the drain pipe 7 as shown in the third drawing.

Further, a large amount of the granular material 18 dropped from the second dumping port 24 is scattered on the grounding part 17 of the drain pipe 7 and spreads from the circumferential side to the upper part of the drain pipe 7 as shown in FIG. 3 II. will be established.

Therefore, since the granular material 18 is located around the entire circumference of the drain pipe 7, which is buried underground by covering the groove 18 with soil, water can be properly drained from the drainage pores 14 around the entire circumference of the drain pipe 7. It enters the drain pipe 7.

Moreover, the granular material 1 interposed between the groove bottom 15 and the drain pipe 7
Since 8 is a small amount A, the groove bottom 15 is made uniform without being uneven, and therefore the drain pipe 7 is laid and buried in a straight line along the groove bottom 15 without being bent up or down. Therefore, the water in the drain pipe 7 can be suitably discharged to a predetermined position, and there is no disadvantage of water remaining in the drain pipe 7.

[Brief explanation of the drawing]

FIG. 1 is a side view showing one embodiment of the present invention, FIG. 2 is an enlarged longitudinal cross-sectional view of main parts showing the working state, and FIG. II is a sectional view showing the state in which the granular material is attached to a drain pipe. 1... Drainage management equipment, 5... Ditch excavator, 7... Drain pipe, 8... Tank, 1
5...Groove bottom, 16...Ungrounded part, 17
...Grounding part, 18...Granular material, 21.
...Shutter, 22...Regulation plate, 23.
...First drop-in port, 24...Second drop-in port.

Claims (1)

[Scope of utility model registration request] A working machine equipped with a trench excavator, a porous drainage pipe laid on the bottom of a trench formed by the trench excavator, and a tank for dropping and dispersing a large number of granular materials for promoting drainage into the drainage pipe to be laid. The tank has a first drop-in port located at the front of the working machine in the direction of travel and above an ungrounded part of the drain pipe and which drops a relatively small amount of granular material, and a first drop-in port located at the rear of the work machine in the direction of travel. A drainage management construction work machine characterized by comprising: a second discharge port located above a grounded portion of a drain pipe for discharging a relatively large amount of granular material.