Split mounting type inverted filter trunk

Abstract

The utility model discloses a split mounting type inverted filter trunk which comprises a bottom plate, a barrel, a plurality of inverted filter pipes and filler. A circular boss is arranged on the bottom plate, and a plurality of water permeable holes are formed in the circular boss; the round barrel is formed by splicing a plurality of arc-shaped splicing plates, a hoop is sleeved outside the round barrel, and the lower end of the round barrel is supported on the bottom plate and positioned outside the round boss; the inverted filter pipes are arranged in the barrel, the lower ends of the inverted filter pipes are inserted into the water permeable holes in a one-to-one correspondence manner, and the upper ends of the inverted filter pipes extend to the upper part of the barrel; the barrel is filled with the filler, and the elevation of the top of the filler is not higher than the upper end of each inverted filter pipe. The utility model not only is convenient for quick assembly, but also has no requirement on the filler in the trunk, and is convenient for local material utilization.

Description

Technical Field

[0001] The utility model relates to the technical field of treatment of piping hazards, in particular to a prefabricated inverted filter cofferdam. Background Art

[0002] When flood comes, the dike body is prone to hazards such as piping, bank collapse, overtopping, landslide, etc., among which the incidence of piping is the highest. Piping is a phenomenon in which fine particles filled in the pores of the soil skeleton are carried away by seepage water and form a seepage channel. If not removed in time, with the scouring of water, the sediment at the lower layer of the dike foundation will continuously gush out, and the diameter of the piping will become larger and larger, resulting in uneven settlement of the dike foundation and ultimately leading to dike collapse.

[0003] An inverted filter cofferdam is a method for treating piping hazards. When piping occurs, a cofferdam is quickly built at the piping opening with soil filled in woven bags or gunny bags. The bottom of the cofferdam wall should be in close contact with the ground. Sand, gravel or straw filter materials are layered and filled in the well according to the requirements of three-layer inverted filtration, and then a drain pipe is installed at the wellhead to drain away the seeping clear water.

[0004] The prefabricated inverted filter cofferdam breaks through the traditional thinking mode of building a cofferdam, abandons the traditional cofferdam materials, structures and construction techniques, and has the characteristics of high construction efficiency and speed, flexible assembly, strong adaptability, convenient storage and transportation, low cost, reusable, green and environmental protection, etc. However, in the existing prefabricated inverted filter cofferdam, sand, gravel or straw filter materials still need to be layered and filled, and in many cases, local materials cannot be used. Summary of the Utility Model

[0005] Aiming at the defects in the prior art, the utility model provides a prefabricated inverted filter cofferdam, so that it is not only convenient for quick assembly, but also has no requirements for the filling materials in the cofferdam, and is convenient for using local materials.

[0006] The utility model provides a prefabricated inverted filter cofferdam, comprising:

[0007] A bottom plate, on which a circular boss is provided, and a plurality of water permeable holes are provided on the circular boss;

[0008] A round barrel, which is spliced by a plurality of arc-shaped plates, a hoop is sleeved outside the round barrel, and the lower end of the round barrel is supported on the bottom plate and positioned outside the circular boss;

[0009] A plurality of inverted filter pipes, which are placed in the round barrel, the lower ends of the inverted filter pipes are respectively inserted into the water permeable holes one by one, and the upper ends of the inverted filter pipes extend to the upper part of the round barrel;

[0010] Filling materials, which are filled in the round barrel, and the elevation of the top of the filling materials is not higher than the upper ends of the inverted filter pipes.

[0011] Further, a convex edge protruding outward is provided at the lower edge of the drum, a pressing ring is sleeved outside the drum and presses on the convex edge, and a plurality of locking members for locking the pressing ring on the bottom plate are provided around the bottom plate.

[0012] Further, the locking member includes a fixed shaft, a rotating pressing block and a locking nut. The lower end of the fixed shaft is fixed on the bottom plate. The rotating pressing block is rotatably installed on the fixed shaft and can slide up and down relative to the fixed shaft. By rotating the rotating pressing block, the rotating pressing block can be pressed on the upper side of the pressing ring or avoid the pressing ring. The locking nut is threadedly connected to the upper end of the fixed shaft and locked on the upper side of the rotating pressing block.

[0013] Further, a spring supporting between the bottom plate and the rotating pressing block is sleeved outside the fixed shaft.

[0014] Further, the adjacent two arc-shaped splints are combined by means of a male tenon and a mortise.

[0015] Further, an overflow pipe is arranged outside the drum and above the elevation of the top of the filler.

[0016] Further, the lower end of the filter pipe is wrapped with geotextile, and the periphery of the geotextile is pressed tightly between the outer wall of the filter pipe and the inner wall of the water permeable hole.

[0017] Further, a colloidal anti-seepage ring is arranged around the lower side of the bottom plate.

[0018] Further, both the bottom plate and the drum are made of lightweight plastics.

[0019] The beneficial effects of the present utility model are embodied in:

[0020] When a piping accident occurs, it is necessary to first level the site at the piping location, then place the bottom plate at the piping occurrence location, then insert the filter pipes at each water permeable hole on the bottom plate, and then assemble the arc-shaped splints around the circular boss on the bottom plate into a drum. After the drum is assembled, put on a hoop outside the drum wall, and then fill the drum with filler. It is convenient for quick assembly. After the filter cofferdam is completed, the water at the piping location seeps through the filter pipes to the upper part of the drum. The filler in the drum only serves to provide pressure for the bottom plate and does not need to percolate through the filler. Therefore, there are no requirements for the filler in the cofferdam, which is convenient for obtaining materials locally. Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0022] Figure 1 This is the assembly drawing of the embodiment of the present utility model;

[0023] Figure 2 This is the structural schematic diagram of the bottom plate of the embodiment of the present utility model;

[0024] Figure 3 This is the structural schematic diagram of the arc-shaped splicing board of the embodiment of the present utility model;

[0025] Figure 4 This is the structural schematic diagram of the filter tube of the embodiment of the present utility model;

[0026] Figure 5 This is the structural schematic diagram of the combination of the filter tube and the bottom plate of the embodiment of the present utility model;

[0027] Figure 6 It is Figure 1 The enlarged view of part A of .

[0028] In the attached drawings, 100 - bottom plate; 110 - circular boss; 120 - water permeable holes; 200 - barrel; 210 - arc-shaped splicing board; 211 - convex tenon; 212 - mortise groove; 220 - hoop; 230 - convex edge; 240 - overflow pipe; 300 - filter tube; 310 - geotextile; 400 - filler; 500 - compression ring; 600 - locking part; 610 - fixed shaft; 620 - rotating pressing block; 630 - locking nut; 640 - spring. Specific embodiments

[0029] Next, embodiments of the technical solution of the present utility model will be described in detail with reference to the attached drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0030] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the field to which the present utility model belongs.

[0031] As Figures 1-6 shown, the embodiment of the present utility model provides a prefabricated filter well, including a bottom plate 100, a barrel 200, a plurality of filter tubes 300 and a filler 400.

[0032] Referring to Figure 2 , a circular boss 110 is provided on the bottom plate 100, and a plurality of water permeable holes 120 are provided on the circular boss 110.

[0033] Referring to Figure 1 and Figure 3, the cylindrical barrel 200 is formed by splicing multiple arc-shaped panels 210. A hoop 220 is sleeved outside the cylindrical barrel 200. The lower end of the cylindrical barrel 200 is supported on the bottom plate 100 and positioned outside the circular boss 110. To improve the tightness of the splicing between the arc-shaped panels 210 of the cylindrical barrel 200, two adjacent arc-shaped panels 210 are combined by means of a male tenon 211 and a mortise 212.

[0034] In this embodiment, both the bottom plate 100 and the cylindrical barrel 200 are made of lightweight plastics, so that the bottom plate 100 and the cylindrical barrel 200 are of light weight and are easy to move.

[0035] Referring to Figure 1 and Figure 5 , the filter pipes 300 are placed inside the cylindrical barrel 200. The lower ends of the filter pipes 300 are inserted into the water-permeable holes 120 one by one, and the upper ends of the filter pipes 300 extend to the upper part of the cylindrical barrel 200. Preferably, referring to Figure 5 , the lower end of the filter pipe 300 is wrapped with geotextile 310. The periphery of the geotextile 310 is pressed between the outer wall of the filter pipe 300 and the inner wall of the water-permeable hole 120. The geotextile 310 can filter the seepage water at the piping location, with a simple structure and reliable filtration.

[0036] Referring again to Figure 1 , the filler 400 is filled inside the cylindrical barrel 200, and the elevation of the top of the filler 400 is not higher than the upper ends of the filter pipes 300.

[0037] When a piping danger occurs, it is necessary to first level the site at the piping location, then place the bottom plate 100 at the piping occurrence location, then insert the filter pipes 300 at the water-permeable holes 120 on the bottom plate 100, and then splice the arc-shaped panels 210 around the circular boss 110 on the bottom plate 100 to form the cylindrical barrel 200. After the cylindrical barrel 200 is spliced, a hoop 220 is sleeved outside the cylindrical wall, and then the filler 400 is filled into the cylindrical barrel 200. It is convenient for quick assembly. After the filter cofferdam is completed, the water at the piping location seeps through the filter pipes 300 to the upper part of the cylindrical barrel 200. The filler 400 inside the cylindrical barrel 200 only serves to provide pressure for the bottom plate 100 and does not need to filter through the filler 400. Therefore, there are no requirements for the filler 400 inside the cofferdam, which is convenient for local material selection.

[0038] In this embodiment, referring to Figure 1 , the lower edge of the cylindrical barrel 200 is provided with an outwardly protruding flange 230. A pressure ring 500 is sleeved outside the cylindrical barrel 200 and presses on the flange 230. A plurality of locking members 600 for locking the pressure ring 500 to the bottom plate 100 are provided around the bottom plate 100. During assembly, the pressure ring 500 can be locked by the locking members 600, thereby preventing the cylindrical barrel 200 from separating from the bottom plate 100.

[0039] Specifically, referring toFigure 6 , the locking member 600 includes a fixed shaft 610, a rotating pressing block 620 and a locking nut 630. The lower end of the fixed shaft 610 is fixed on the bottom plate 100. The rotating pressing block 620 is rotatably mounted on the fixed shaft 610 and can slide up and down relative to the fixed shaft 610. By rotating the rotating pressing block 620, the rotating pressing block 620 can be pressed against the upper side of the pressing ring 500 or avoid the pressing ring 500. The locking nut 630 is threadedly connected to the upper end of the fixed shaft 610 and locked on the upper side of the rotating pressing block 620. When locking, rotate the rotating pressing block 620 to the upper side of the pressing ring 500, and then tighten the locking nut 630 so that the rotating pressing block 620 is pressed tightly against the pressing ring 500. When disassembling, loosen the locking nut 630 and rotate the rotating pressing block 620 to a position avoiding the pressing ring 500, then the drum 200 can be disassembled from the bottom plate 100.

[0040] Preferably, a spring 640 is sleeved outside the fixed shaft 610 and supported between the bottom plate 100 and the rotating pressing block 620. In this way, tightening the locking nut 630 can drive the rotating pressing block 620 to press down, and loosening the locking nut 630 can drive the rotating pressing block 620 to move up under the action of the spring 640.

[0041] In this embodiment, referring to Figure 1 , an overflow pipe 240 is arranged outside the drum 200 above the elevation of the top of the filler 400, and the water seeping out from the filter pipe 300 can be discharged through the overflow pipe 240.

[0042] In this embodiment, a colloidal anti-seepage ring is arranged around the lower side of the bottom plate 100, which can reduce the seepage of the piping water between the bottom plate 100 and the ground.

[0043] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. An assembled filter well, characterized in that: include: A bottom plate, wherein a circular boss is provided on the bottom plate, and a plurality of water-permeable holes are provided on the circular boss; A round barrel, which is formed by splicing a plurality of arc-shaped panels, and is covered with a hoop, and the lower end of the round barrel is supported on the bottom plate and positioned outside the circular boss; A plurality of filter tubes are placed in the drum, the lower ends of the filter tubes are plugged into the water holes one by one, and the upper ends of the filter tubes extend to the upper part of the drum; The filler is filled in the drum, and the elevation of the top of the filler is not higher than the upper end of each of the reverse filter tubes.

2. The assembled filter well according to claim 1 is characterized in that: The lower edge of the drum is provided with a convex edge protruding outward, the drum outer shell is provided with a pressing ring pressed on the convex edge, and the periphery of the bottom plate is provided with a plurality of locking members for locking the pressing ring on the bottom plate.

3. The assembled reverse filtration well according to claim 2 is characterized in that: The locking member includes a fixed shaft, a rotating pressure block and a locking nut. The lower end of the fixed shaft is fixed to the bottom plate. The rotating pressure block is rotatably installed on the fixed shaft and can slide up and down relative to the fixed shaft. The rotating pressure block can be pressed on the upper side of the pressure ring or avoid the pressure ring by rotating the rotating pressure block. The locking nut is threadedly connected to the upper end of the fixed shaft and locked on the upper side of the rotating pressure block.

4. The assembled reverse filtration well according to claim 3 is characterized in that: The fixed shaft outer sleeve is provided with a spring supported between the bottom plate and the rotating pressing block.

5. The assembled filter well according to claim 1 is characterized in that: Two adjacent arc-shaped panels are connected by means of tongue and groove.

6. The assembled filter well according to claim 1 is characterized in that: An overflow pipe is arranged outside the drum and is located above the elevation of the top of the filler.

7. The assembled filter well according to claim 1 is characterized in that: The lower end of the filter tube is wrapped with a geotextile, and the periphery of the geotextile is pressed tightly between the outer wall of the filter tube and the inner wall of the water permeable hole.

8. The assembled filter well according to claim 1 is characterized in that: A gel-like anti-seepage ring is arranged around the lower side of the bottom plate.

9. The assembled reverse filtration well according to claim 1 is characterized in that: The bottom plate and the round barrel are both made of light plastic.

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