JPH0671584U - Sediment suction device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a sediment suction device capable of efficiently collecting sediment deposited in mud water. [Structure] A device for sucking the earth and sand 9 accumulated in the muddy water 10 in the sewer pipe 8. The swing motor 1 is attached to a gantry that moves in the sewer pipe 8 by self-propelling or indexing, and the rotation axis of the swing motor 1 is parallel to the pipe axis of the sewer pipe. A guide 4 for supporting the telescopic jack 5 and the support plate 2 is attached to the swing motor 1. The telescopic jack 5 supports a lid-shaped member 7 and a suction hose 6 that communicates with the upper portion of the lid-shaped member 7. The support plate 2 supports a scraping plate 3 having an air hole 3'opened at the bottom. When the rocking motor 1 is rotated, the scraping plate 3 is displaced along the bottom surface of the sewer pipe 8 as shown by an arrow, and scoops the earth and sand 9. After that, the telescopic jack 5 is extended and the lid-shaped member 7 is covered on the scraping plate 3, and the earth and sand on the scraping plate 3 is sucked through the suction hose 6 and discharged to the outside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sediment suction device applied to the collection of sediment deposited in muddy water of sewers, ports, rivers, etc.

[0002]

[Prior art]

 When suctioning sediment accumulated in muddy water such as a sewer pipe with a suction device such as a vacuum car, it is difficult to collect only sediment continuously and efficiently because the sediment is below the muddy water. In some cases, air was also mixed in for suction. The situation is shown in FIG.

As described above, conventionally, when the earth and sand (sludge) accumulated in the muddy water in the sewer pipe is collected manually, a suction device such as a vacuum car is mainly used, but at this time, it should be collected. Since the sediment is in the lower part of the muddy water, it was difficult to suck only the sediment efficiently and continuously. Therefore, he was sucking muddy water and earth and sand together. In addition, when the depth is above a certain level (about 10 m), air is also sucked in, and it is sucked up in a state where earth, sand, water, and air are mixed.

In this case, the amount of air to be sucked is adjusted according to the experience and intuition of the operator. Therefore, the sediment collection rate after collection was low, and it was necessary to further remove unnecessary water after collection. Further, as shown in FIG. 4, since the soil and sand are scraped off and sucked by human power, the worker's body is contaminated by dirt and the like, and it is a heavy labor.

[0005]

[Problems to be solved by the device]

 An object of the present invention is to provide a sediment suction device that can efficiently collect sediment deposited in mud water. Another object of the present invention is to provide a sediment suction device having a simple structure that can mechanically collect the sediment accumulated in mud water without leaving it.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, in the earth and sand suction device according to the present invention, a scooping plate having a hole at the bottom for drowning the bottom of muddy water, a lid-like member to be covered on the scraping plate for drowning the bottom of muddy water, and this lid-shaped member A structure is used that has a suction hose that is in communication with the member and that sucks the earth and sand contained between the scraping plate and the lid-shaped member.

[0007]

[Action]

 The scraping plate dredges the muddy water bottom with a manipulator driven by water pressure, hydraulic pressure, or an electric motor. The sediment that had accumulated on the bottom of the muddy water was scraped up on the scraping plate, scooped up above the mud surface, and after the mud flowed down, the suction hose was connected to the lid-shaped member on the scraping plate. By covering the scraping board with the lid-shaped member, a high suction power is created instantaneously between the scraping board and the lid-like member, and the relatively small amount of sand and sand remaining on the scraping board is transferred from there to the ground suction car. Suction.

At this time, since the bottom of the scraping plate has a hole, air does not flow between the scraping plate and the lid-like member through the hole and the flow of the suction hose is not blocked. Instead, the lumps of sand are pneumatically transported. After that, the scraping board 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 can be reliably transported.

[0009]

【Example】

 Hereinafter, the earth and sand suction device according to the present invention will be specifically described with reference to the embodiments shown in FIGS. 1 and 2. 1 and 2 show a case where the earth and sand suction device of the present invention is applied to suck the earth and sand 9 accumulated in the muddy water 10 in the sewer pipe 8. In FIGS. 1 and 2, reference numeral 11 denotes a gantry that moves in the sewer pipe 8 by self-propelling or indexing. Reference numeral 1 denotes a rocking motor that is attached to a pedestal 11 and that rotates in the circumferential direction of the sewer pipe 8 in parallel with the axis of the sewer pipe 8 by hydraulic pressure, hydraulic pressure, or electric.

A guide 4 that supports the telescopic jack 5 and the support plate 2 is attached to the swing motor 1. The telescopic jack 5 supports a bowl-shaped lid-shaped member 7 and a suction hose 6 that communicates with the upper portion of the lid-shaped member 7. Reference numeral 3 is a scraping plate supported by the support plate 2 such as a dust remover, and the scraping plate 3 has an air hole 3'of which opening degree can be adjusted at the bottom thereof.

The scraping plate 3 is displaced along the inner surface of the sewer pipe 8 by the rotation of the rocking motor 1 so that the sediment 9 accumulated at the bottom of the sewer pipe 8 is discharged from the muddy water 10 to above the muddy water surface. I will scoop up. After that, the expansion jack 5 is extended, and the lid-shaped member 7 is put on the scraped-up plate 3 on the scooped-up sand, and the suction hose 6 attached to the lid-shaped member 7 is used to cover the inside of the scraped-up plate 3. The earth and sand are sucked by the suction force (negative pressure) of the suction truck, and transported by air to the ground.

At this time, since there is an air hole 3 ′ at the bottom of the scraping plate 3, the opening degree is adjusted in advance so that an appropriate amount of air can enter, and the air is sucked to remove the soil without causing a closed state. Can be transported. In this way, after sucking the sand and sand scooped up on the scraping plate 3, the telescopic jack 5 is contracted to separate the lid-shaped member 7 from the scraping plate 3.

After that, the swinging motor 1 is rotated in the reverse direction and the scraping plate is returned to the muddy water 10 again, and like the above-described case, the earth and sand at the bottom of the sewer pipe 8 are scooped up and the lid-shaped member 7 is covered thereon. , Suction and discharge the sediment inside. By repeating such operations, it is possible to reliably transport the earth and sand scooped up from the muddy water, although intermittently.

FIG. 3 shows the entire structure, and the earth and sand suction device shown in FIGS. 1 and 2 is attached to the portion A. The section B is a transfer device that is composed of two mounts a and b, and the two mounts a and b alternately perform gripping and transfer to the inner surface of the sewer pipe 8 to run in the scale insect method. C indicates a ground suction truck. As described above, while the underground sewer pipe 8 automatically moves, 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 with reference to the drawings, but the present invention is not limited to this. Needless to say, various modifications and changes may be made within the scope of the claims for utility model registration. For example, in the illustrated device, both the scraping plate 3 and the lid-shaped member 7 are configured to be swung by the swing motor 1, but the lid-shaped member 7 is fixed and the scraping is performed. Only the plate 3 may be swung, and when the scraping plate 3 is swung to the position of the lid-shaped member 7, the lid-shaped member 7 may be covered to suck the earth and sand.

[0016]

【The invention's effect】

 As described above in detail, in the earth and sand suction device according to the present invention, a raking plate having a hole at the bottom and dredging the mud bottom, a lid-like member to be covered on the raking plate drowning the mud bottom, And a suction hose connected to the lid-like member for sucking the earth and sand contained between the scraping plate and the lid-like member. According to this, the scraping plate accumulates in muddy water. Since the soil that is being collected is mechanically scooped above the surface of the muddy water, the muddy water flows down from the scraping plate, and it is possible to collect the sediment with a smaller amount of water than when suctioning the sediment in the muddy water as in the past, and to collect the remaining water. It requires less processing.

Further, in the device according to the present invention, the intermittent operation of scooping up the earth and sand to cover the lid-like member and then sucking the earth and sand is performed, but since the earth and sand is scooped out from the mud water and then sucked, the muddy water (containing the earth and sand). It is possible to instantaneously aspirate a small amount of earth and sand (low water content) than to continuously aspirate (low rate), and even if it is impossible to discharge due to negative pressure at a vertical 10 m, it is possible to agglomerate earth and sand. As a result of pneumatic transportation, the vertical transportation distance can be increased. Further, in the device according to the present invention, since a mass of sand and sand is mixed into the suction hose instantaneously from the state of sucking only air, a strong suction force (negative pressure) reaches the tip to effectively discharge the sand and sand. You can do it.

[Brief description of drawings]

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

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

FIG. 3 is an overall configuration diagram of a sediment suction device according to an 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]

 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 frame

Claims (1)

[Scope of utility model registration request] 1. A raking plate having a hole at the bottom for drowning the muddy water bottom, a lid-shaped member covering the raking plate drowning the muddy water bottom, and the raking plate communicating with the lid-shaped member. A sand and sand suction device having a suction hose for sucking the sand and sand contained between the lid and the lid-shaped member.