JP2561299Y2 - Sediment suction device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sediment suction device applied to the collection of sediment deposited in muddy water of sewers, ports, rivers, and the like.

[0002]

2. Description of the Related Art When suctioning sediment deposited in muddy water such as a sewer pipe by a suction device such as a vacuum car,
Since the earth and sand is below the muddy water, it is difficult to continuously and efficiently collect only the earth and sand, and the air is mixed with the earth and sand and, in some cases, air as well, and sucked. The situation is shown in FIG.

As described above, conventionally, when soil and sediment (sludge) accumulated in muddy water in a sewer pipe is manually collected, a suction device such as a vacuum car has been mainly used. It was difficult to efficiently and continuously suck only the soil because it was below the muddy water. Therefore, muddy water and earth and sand were sucked together. Further, when the depth is more than a certain level (about 10 m), the air is further sucked, and the soil, the water and the air are mixed and sucked.

[0004] In this case, the amount of air to be sucked is adjusted based on the experience and intuition of the operator. Therefore, the collection rate of the earth and sand after the collection is low, and it is necessary to further remove unnecessary moisture after the collection. Further, as shown in FIG. 4, since the earth and sand are sucked by being manually sucked, the worker's body is smudged with dirt and the like, and the work is extremely heavy.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sediment suction device capable of efficiently collecting sediment deposited in muddy water. Another object of the present invention is to provide a sediment suction device having a simple structure that can be mechanically collected without leaving sediment deposited in muddy water.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the earth and sand suction device according to the present invention has a hole in the bottom and a scraping plate for dripping the muddy bottom, and a scraping plate for dripping the muddy bottom. And a suction hose that communicates with the lid and that sucks the earth and sand contained between the scraper and the lid.

[0007]

The above-mentioned scraping plate dredges the muddy water bottom with a manipulator driven by water pressure, hydraulic pressure, an electric motor or the like. The sediment deposited on the bottom of the muddy water is scraped up on a scraping board and is directly scooped above the muddy water surface.
After the muddy water flows down, the lid-like member to which the suction hose is connected is placed on the scraping plate, thereby instantaneously creating a high suction force between the scraping plate and the lid-like member.
As a result, the sediment mass with relatively little water remaining on the scraping plate is sucked from there to a ground suction truck or the like.

At this time, since the bottom of the scraping plate has a hole, air flows between the scraping plate and the lid-like member through the hole, so that the flow of the suction hose is not blocked. , The sediment is transported by air. After that, the scraping plate is returned to the muddy water again, and the earth and sand is collected again. By repeating these operations, the sediment deposited on the bottom of the sewer pipe or the like can be reliably transported.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The earth and sand suction device according to the present invention will be described below in detail with reference to the embodiments shown in FIGS. FIG.
FIG. 2 shows a case where the earth and sand suction device of the present invention is applied to suck the earth and sand 9 deposited in the muddy water 10 in the sewer pipe 8. 1 and 2, reference numeral 11 denotes a gantry which moves in the sewer pipe 8 by itself or by index. Reference numeral 1 denotes a hydraulic, hydraulic, or electric swing motor that is attached to the gantry 11 and rotates in the circumferential direction of the sewer pipe 8 in parallel with the axis of the sewer pipe 8.

The rocking motor 1 is provided with a telescopic jack 5 and a guide 4 for supporting the support plate 2. The telescopic jack 5 supports a bowl-shaped lid member 7 and a suction hose 6 communicated with an upper portion of the lid member 7. 3 is
This is a scraping plate like a dustpan supported by the support plate 2, and has an air hole 3 ′ whose opening can be adjusted at the bottom of the scraping plate 3.

The scraping plate 3 is displaced along the inner surface of the sewer pipe 8 by the rotation of the rocking motor 1, and moves the sediment 9 deposited on the bottom of the sewer pipe 8 from the muddy water 10 to above the muddy water surface. I'll scoop up. Thereafter, the telescopic jack 5 is extended, and the lid member 7 is put on the earth and sand which has been scooped up on the scraping plate 3. The suction hose 6 attached to the lid member 7 causes the inside of the scraping plate 3 to move. Soil is sucked by the suction power (negative pressure) of the suction truck and transported to the ground by air transport.

At this time, since the bottom of the scraping plate 3 has an air hole 3 ', the opening is adjusted in advance so that an appropriate amount of air enters, the air is sucked, and the sediment is conveyed without causing a blockage. can do. After sucking the earth and sand scooped on the scraping plate 3 in this way, the extensible jack 5 is contracted, and the lid member 7 is separated from the scraping plate 3.

Then, the rocking motor 1 is rotated in the reverse direction, the scraping plate is returned into the muddy water 10 again, the soil at the bottom of the sewer pipe 8 is scooped up, and the lid-like member 7 is put thereon as described above. Suction and discharge of the earth and sand inside. By repeating such an operation, the earth and sand picked up from the muddy water can be transported intermittently but surely.

FIG. 3 shows the entire structure, and the earth and sand suction device shown in FIGS. 1 and 2 is attached to part A.
The portion B is a transfer device that includes two mounts a and b, and the two mounts a and b alternately travel and grip the inner surface of the sewer pipe 8 and move in a scale-insecting manner. C indicates a ground suction vehicle. As described above, the inside of the underground sewer pipe 8 is automatically shifted, and the sediment deposited on the bottom of the sewer pipe 8 is discharged.

As described above, an example in which the earth and sand suction device according to the present invention is applied to suck and discharge earth and sand from muddy water in a sewer pipe has been specifically described based on the drawings, but the present invention is not limited to this. Needless to say, various modifications and changes may be made within the scope shown in the claims for utility model registration. For example, in the illustrated device, both the scraping plate 3 and the lid member 7 are configured to be rocked by the rocking motor 1. However, the lid member 7 is fixed, and only the scraping plate 3 is rocked. When the scraping plate 3 swings to the position of the lid member 7, the lid member 7 may be covered to suck the earth and sand.

[0016]

As described above in detail, in the earth and sand suction device according to the present invention, a scraping plate having a hole at the bottom and dripping the muddy bottom is put on the scraping plate dripping the muddy bottom. A lid-like member, and a suction hose connected to the lid-like member for sucking earth and sand contained between the scraping plate and the lid-like member. Since the sediment deposited inside is mechanically scooped above the muddy water level, the muddy water flows down from the scraping plate, and the sediment can be recovered with less water than the conventional method of sucking the sediment in the muddy water, Less sewage treatment is required.

In the apparatus according to the present invention, the intermittent operation of scooping up the earth and sand and covering the lid-like member and then sucking in the earth and sand is performed. Can be instantaneously sucked in a smaller amount of sediment (low water content) than in the case of continuous suction of low By pneumatic transport, the vertical transport distance can be increased. Further, in the device according to the present invention, since the earth inside the suction hose is sucked only by air and sediment blocks are instantaneously mixed therein, a strong suction force (negative pressure) reaches the tip and the sand can be effectively discharged. .

[Brief description of the drawings]

FIG. 1 is a front view of an earth and sand suction device according to an embodiment of the present invention.

FIG. 2 is a side view of the apparatus shown in FIG.

FIG. 3 is an overall configuration diagram of the earth and sand suction device according to one embodiment of the present invention.

FIG. 4 is a perspective view showing an example of a conventional earth and sand suction device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 swing motor 2 support plate 3 scraping plate 4 guide 5 telescopic jack 6 suction hose 7 lid-like member 8 sewer pipe 9 earth and sand 10 muddy water 11 base

Claims (1)

(57) [Scope of request for utility model registration] 1. A scraping plate having a hole at a bottom portion for dripping a muddy bottom portion, a lid-like member put on the scraping plate having a muddy-water bottom portion drawn thereon, and the scraping plate communicated with the lid-like member. And a suction hose for sucking earth and sand contained between the lid and the lid member.