JP2012077549A - Dredging jig and dredging method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dredging jig and a dredging method capable of cleaning/dredging a sewer and a traverse water channel at a narrow location where a large-sized cleaning vehicle cannot be carried in due to the small amount of water.SOLUTION: A head rope 22 is made to pass through an earthenware pipe T by a guide rope or the like beforehand, and the head rope 22 is pulled to insert a base plate 1, an umbrella-shaped head 2 and a high pressure jetting nozzle 3 into the earthenware pipe T. Then, the head rope 22 is loosened, and in the state of making the umbrella-shaped head 2 stand upright by pulling back an inner rope 23, high pressure water is supplied from a flexible pipe 25 through a water pipe 26 to the high pressure jetting nozzle 3, and high pressure jetting water is jetted from a water jetting port 17 to the back. A tail rope 24 is pulled back to move back the base plate 1, the umbrella-shaped head 2 and the high pressure jetting nozzle 3, and sediment D is raked out.

Description

  The present invention relates to rainwater and domestic drainage in confined areas where large-scale cleaning vehicles cannot be carried in, pipes and crossing waterways for sewers, agricultural waterways, stormwater drainage in the surrounding area, such as agriculture mainly during railway construction. The present invention relates to a dredge jig and a drenching method for cleaning and drooping prone laying for flowing water.

Conventionally, pipe facilities such as pipes and manholes have been cleaned by high-pressure washing car cleaning (pipe pipes with a pipe diameter of 200 to less than 800 mm), bucket machine cleaning (pipe pipes with a pipe diameter of 200 to 2,000 mm or less), and sludge suction. Cleaning methods such as car cleaning (tube tubs with a pipe diameter of 800 mm or more) and manual cleaning are known.
The high-pressure washing car cleaning is carried out by inserting a high-pressure hose upstream from the downstream manhole in the section to be cleaned, and spraying washing water pressurized from the high-pressure washing car from a nozzle attached to the tip of the high-pressure hose for propulsion and retraction. Repeatedly, sediment such as earth and sand is collected in the downstream manhole and sucked up by the suction hose of the sludge suction vehicle.
In the bucket machine cleaning, a wire is passed between manholes, a bucket that opens and closes is attached to the wire, pulled to the ground by a bucket machine (winch), and earth and sand collected in the bucket are loaded onto a dump truck.
In the sludge suction wheel cleaning, the suction hose of the sludge suction wheel is inserted downstream from the upstream manhole in the section to be cleaned, and the operator operates the tip of the suction hose in the pipe to suck up the deposit directly.

Here, there exists a well-known technique (refer patent document 1) as an in-pipe cleaning apparatus used in order to clean the inside of pipes, such as a sewer pipe.
In this known technique, a material that deposits or adheres to the inside of the pipe of an equipment having a buried pipe and a pipe such as a manhole that communicates the pipe with the ground is inserted into the pipe. In the tube cleaning device, at least one end opening of the flexible tube is used as a scavenging port, and the space in the flexible tube is set as a holding space, and is led into the tube tube from the upper end opening of the tube. Thereafter, a scraper body that is movable in the pipe tub and is configured to be returned to the ground through the pipe while holding the deposit in the storage space by the movement, and means for moving the scraper body; It is an in-pipe cleaning apparatus provided with.

In addition, as a countermeasure for track collapse, for the proneness that is currently under investigation, it is far away from the normal place where the “dripping / camera survey” is performed using a high-pressure washing car and a camera car from the road or approach road. There are places that are not close to each other and that are difficult to bring to the survey site.
However, when the survey was conducted without dredging, the entire sag was unknown due to the state of sediment accumulation, and the problem was that the survey accuracy was inferior.
In addition, fixed high-pressure cleaning using a railroad vehicle for performing dredging concurrently uses a large amount of cleaning water, so there is a problem of water shortage when there is a lot of sediment.

Japanese Patent Laid-Open No. 10-338964

  An object of the present invention is to provide a dredging jig and dredging method capable of cleaning and dripping pipes and crossing waterways in narrow places where a large cleaning vehicle cannot be carried in with a small amount of water.

The drenching jig of the present invention is composed of a boat-shaped substrate, an umbrella-shaped head swingably provided at the tip of the substrate, and a high-pressure spray nozzle arranged at the center of the substrate.
According to the drenching method of the present invention, a first hook and a second hook are provided on the front and rear portions above the umbrella-shaped head, respectively, and a head rope and a middle rope are fastened to the first hook and the second hook. In a dredging jig provided with a circular hole at the rear end of the rear end side substrate and fastening a tail rope to the circular hole, the head rope penetrates into the clay pipe in advance with a guide rope or the like, pulls the head rope, Insert the substrate, the umbrella-shaped head and the high-pressure spray nozzle into the clay pipe, then loosen the head rope, pull the middle rope back and let the umbrella-shaped head stand upright, and the water pipe from the flexible pipe The high pressure water is supplied to the high pressure spray nozzle, the high pressure spray water is sprayed backward from the fountain port, the tail rope is pulled back, and the substrate, the umbrella-shaped head and the high pressure spray nozzle are retracted to scrape the earth and sand. is there.

  The drenching jig and drenching method of the present invention is composed of a boat-shaped substrate, an umbrella-shaped head swingably provided at the tip of the substrate, and a high-pressure spray nozzle arranged at the center of the substrate. There is an effect that the soil can be scraped with water.

It is a top view of the dredging jig of this invention. It is a sectional side view of the dredging jig of this invention. It is a sectional side view in the state where the umbrella head of the dredging jig of the present invention inclined. It is sectional drawing of a railway site. It is sectional drawing at the time of the start of the dredging jig of this invention. It is sectional drawing at the time of dripping of the dripping jig of this invention. It is sectional drawing when dodging the level | step difference of the dredging jig of this invention. It is a sectional side view of other Example 1 of the dredging jig of this invention. It is a sectional side view of other Example 2 of the dredging jig of this invention.

One embodiment of a dredging jig according to the present invention will be described below with reference to the accompanying drawings.
As shown in the plan view of FIG. 1, the drenching jig of the present invention is arranged in a boat-shaped substrate 1, an umbrella-shaped head 2 provided swingably at the tip of the substrate 1, and the center of the substrate 1. And a high-pressure spray nozzle 3.
A part of the umbrella head 2 is a sectional view.

As shown in the side sectional view of FIG. 2, the substrate 1 is flat at the front end side substrate 4, provided with a stepped portion 5 to make the rear end side substrate 6 flat and low, and at the center of the front end side substrate 4. Is provided with a long hole 7 into which a swing arm 19 to be described later is inserted, and a circular hole 8 through which water sprayed from the high-pressure spray nozzle 3 is sprayed is provided at the rear of the tip side substrate 4.
The step portion 5 has a height at least equal to or larger than the diameter of the high-pressure injection nozzle 5, and a round hole 9 into which the high-pressure injection nozzle 3 can be inserted is formed in the center portion of the step portion 5.
The rear end side substrate 6 is provided with a circular hole 10 at the rear end, and a tail rope 24 (shown in FIG. 5) for pulling back the substrate 1 is fastened to the circular hole 10.

The umbrella-shaped head 2 has a conical shape with a top on the tip side, and a main bearing 13 and a sub-bearing 14 of the umbrella-shaped head 2 on a main shaft 11 and a sub shaft 12 provided in parallel before and after the front end of the substrate 1. Are formed so as to be swingable up and down.
A first hook 15 and a second hook 16 shown in FIG. 2 are provided on the front and rear portions above the umbrella-shaped head 2, and the umbrella-shaped head 2 is inclined forward as shown in a side sectional view of FIG. A head rope 22 (shown in FIG. 5) for causing the dredging jig to advance is fastened to the first hook 15, and the umbrella head 2 is pulled up to the second hook 16 so that the umbrella head 2 stands upright. The intermediate rope 23 (shown in FIG. 5) is fastened.
A sub-bearing 17 shown in FIG. 2 is formed on the rear part below the umbrella-shaped head 2 to provide a sub-shaft 18, and a swing arm 19 is pivotally attached to the sub-shaft 18. A rod that is inserted into a long hole 7 formed in the substrate 4 so that the umbrella-shaped head 2 becomes upright as shown in FIGS. 3 to 2 when the middle rope 23 (shown in FIG. 6) is pulled back. 20 is provided at the tip.

  The high-pressure spray nozzle 3 is inserted through the round hole 9 of the step portion 5 from the rear to the front, the front end is positioned at the center of the circular hole 8 of the front end side substrate 4, and the rear end is located on the rear end side substrate 6. It is placed and fixed to the rear end side substrate 6 with the tube clamp 21.

Next, the operation of the dredge jig according to the present invention will be described below with reference to the accompanying drawings.
The case where the earth and sand D collected in the earth pipe T crossing the embankment M of the track R in the railway site shown in the cross-sectional view of FIG.

  As shown in the cross-sectional view of FIG. 5, the head rope 22 is first penetrated into the earth pipe D with a guide rope or the like in advance, and the head rope 22 is pulled, and the substrate 1, the umbrella head 2, and the high pressure injection nozzle 3 are moved. Insert into the clay pipe D. At that time, the umbrella-shaped head 2 is pulled forward in an inclined state by the first hook 15 to which the head rope 22 is fastened, while the swing arm 19 is protruded from the long hole 7 of the tip side substrate 4. .

When dredging the earth and sand D, as shown in the cross-sectional view of FIG. 6, the head rope 22 is loosened, the middle rope 23 is pulled back, and the umbrella-shaped head 2 is brought upright. In that case, the umbrella-shaped head 2 is pulled back and upright by the second hook 16 to which the intermediate rope 23 is fastened, and at the same time, the swing arm 19 is pulled forward and the tip-side substrate 4 The stop rod 20 is caught in the long hole 7 and stopped.
In this way, with the umbrella head 2 standing upright, the high pressure water is supplied from the flexible pipe 25 to the high pressure injection nozzle 3 through the water supply pipe 26, and the high pressure injection water is injected backward from the fountain port 27. In addition, in the case of this Example, although the high pressure jet water was jetted back, if the earth and sand D can be softened or peeled, it will not necessarily be limited to a jet direction.
Then, with the umbrella head 2 kept in an upright state, the tail rope 24 is pulled back, and the substrate 1, the umbrella head 2, and the high pressure injection nozzle 3 are moved backward.
In this manner, the umbrella-shaped head 2 is moved forward with the tilted state and the umbrella-shaped head 2 is moved back and forth with the umbrella-shaped head 2 upright, and the sand-and-sand D is softened or separated by the high-pressure spray nozzle 3. Scrape out D.

  As shown in the cross-sectional view of FIG. 7, when the step S is formed by the deformed earth pipe T ′, the umbrella-shaped head 2 does not get caught by the step S during the pullback, but in that case, The balance of the three ropes, that is, the head rope 22, the middle rope 23, and the tail rope 24, is pulled alternately, and the earth and sand D are scraped out while changing the inclination angle of the umbrella head 2 to avoid the step S.

Furthermore, another embodiment of the dredging jig of the present invention will be described below with reference to the accompanying drawings.
As shown in the side sectional view of FIG. 8, a rope 28 is provided in place of the swing arm 19 and the stop rod 20, and an attachment member 29 is fixed to the lower part of the umbrella-shaped head 2. The rope 28 is fastened using the long hole 7 and the circular hole 8.
As shown in the side sectional view of FIG. 9, a butting bar 30 is provided on the tip side of the tip side substrate 4 in place of the swing arm 19 and the stop rod 20 to act as a stopper when the umbrella-shaped head 2 stands upright.

DESCRIPTION OF SYMBOLS 1 Substrate 2 Umbrella head 3 High pressure injection nozzle 4 Front end side substrate 5 Stepped portion 6 Rear end side substrate 7 Long hole 8 Circular hole 9 Round hole 10 Main hole 12 Main shaft 12 Sub shaft 13 Main bearing 14 Sub bearing 15 First hook 16 Second hook 17 Sub-bearing 18 Sub-shaft 19 Swing arm 20 Stop rod 21 Fastener 22 Head rope 23 Medium rope 24 Tail rope 25 Soft pipe 26 Water pipe 27 Fountain port 28 Rope 29 Mounting member 30 Butting stick

Claims (4)

  A drenching jig comprising a boat-shaped substrate, an umbrella-shaped head swingably provided at the tip of the substrate, and a high-pressure spray nozzle disposed in the center of the substrate.   The substrate has a flat and high front end side substrate, a stepped portion is provided to make the rear end side flat and low, and a long hole into which a swing arm is inserted is provided in the center of the front end side substrate. A circular hole through which water sprayed from the high-pressure spray nozzle is sprayed is provided at the rear portion of the side substrate, and the umbrella-shaped head has a conical shape with a top portion on the tip side, and is provided in parallel with the front and rear of the tip of the substrate. And the main shaft and the sub-bearing of the umbrella-shaped head are connected to the countershaft and are formed to be swingable up and down. The high-pressure injection nozzle is inserted through the round hole of the stepped portion from the rear to the front, and the tip is inserted into the tip 2. The drenching jig according to claim 1, wherein the dripping jig is positioned at the center of the circular hole of the side substrate, the rear end is placed on the rear end side substrate, and is fixed to the rear end side substrate by a pipe clamp.   A first hook and a second hook are provided on the front and rear portions above the umbrella-shaped head, respectively, a head rope and a middle rope are fastened to the first hook and the second hook, and the rear end of the board on the rear end side of the board The dredging jig according to claim 1, wherein a circular hole is provided in the circular hole, and the head rope penetrates the earth pipe with a guide rope or the like in advance, and the head rope is pulled, Insert the substrate, the umbrella-shaped head and the high-pressure spray nozzle into the clay pipe, then loosen the head rope, pull the middle rope back and let the umbrella-shaped head stand upright, and the water pipe from the flexible pipe The high pressure water is supplied to the high pressure spray nozzle, the high pressure spray water is sprayed backward from the fountain port, the tail rope is pulled back, the substrate, the umbrella-shaped head and the high pressure spray nozzle are retracted to scrape the earth and sand. Characteristic drought method.   If a step is formed by the deformed clay pipe, balance the head rope, the middle rope, and the tail rope, pull alternately, and dodge the step while changing the tilt angle of the umbrella head 4. The dripping method according to claim 3, wherein the earth and sand are scraped out.

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