Detachable and reusable underground filling retaining wall device

Abstract

The utility model discloses a detachable and reusable underground filling retaining wall device which comprises a framework layer, the framework layer comprises supporting rods and cross beams, the bottom end of each supporting rod is provided with a rotatable screw rod, the supporting rods form a liftable structure through supporting of the screw rods, and supporting plates are fixed to the bottom ends of the screw rods; the cross beams comprise movable cross beams and fixed cross beams, an adjusting mechanism is mounted at the top end of each supporting rod, the cross beams mounted on the adjusting mechanisms are the movable cross beams, and the other cross beams are the fixed cross beams; the adjusting mechanism comprises a supporting seat and an adjusting screw, and the supporting seat is movably installed at the top end of the supporting rod through the adjusting screw. In this way, the height of the whole framework layer can be adjusted by rotating the screw rod, the height of the movable cross beam on the top can be finely adjusted by rotating the adjusting screw, the requirements of irregular terrains can be better met, practicability is high, flexibility and mobility are achieved, the working efficiency can be remarkably improved, and cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of construction protection device technology, and in particular to a detachable and reusable underground filling retaining wall device. Background Technology

[0002] Backfill mining methods are increasingly widely used in mining production due to their advantages such as operational safety, ability to delay surface subsidence, and effective prevention of engineering geological disasters like deep rock bursts. In backfill mining, the construction of backfill retaining walls is a crucial step that must be completed before backfilling. The quality of the backfill retaining wall construction directly affects the efficiency and quality of the backfilling process. In some mines, improper retaining wall construction frequently leads to problems such as slurry leakage and sand leakage during backfilling, and in severe cases, even complete retaining wall collapse, resulting in underground environmental pollution and difficulties in handling sand leakage. Some mines increase the thickness of the retaining walls to improve safety, but this increases material consumption, prolongs construction time, and thus reduces mining and backfilling efficiency. Other mines use non-removable and non-reusable retaining wall devices such as concrete retaining walls, leading to a significant increase in costs. To address these issues, the industry has been actively researching solutions. For example, Chinese utility model patent CN202122596535.8 discloses a reusable flexible filling retaining wall for underground mines. This design uses a layered structure comprising a skeleton layer, a mesh layer, and a geotextile layer. The skeleton layer serves as the supporting structure, bearing the pressure. The mesh layer evenly absorbs the pressure applied by the geotextile layer, providing excellent buffering. The geotextile layer effectively blocks the filling slurry and allows for liquid seepage, thus aiding in slurry dewatering. The three components are easy to install and can be dismantled and reused after construction. However, current solutions still have some drawbacks. For instance, because the internal structure of mine tunnels is irregular and uneven, and traditional retaining wall devices are generally prefabricated, complex modifications are required to adapt the retaining wall structure to irregular terrain, consuming significant manpower, resources, and time, thus impacting efficiency. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing a downhole filling retaining wall device that is simple in structure, easy to operate, flexible in adjustment, highly mobile, efficient, better adaptable to irregular terrain, and detachable and reusable.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a detachable and reusable downhole filling retaining wall device, comprising a skeleton layer, which can be combined with wooden boards, felt, etc. to form a complete retaining wall. The skeleton layer includes several support rods and several crossbeams, which are installed crosswise with the support rods. The key feature is that a rotatable screw is installed at the bottom end of each support rod, and the support rod forms a lifting structure through the support of the screw. A support plate is fixed at the bottom end of the screw. The crossbeams include movable crossbeams and fixed crossbeams. An adjustment mechanism is installed at the top of each support rod. The crossbeams installed on the adjustment mechanism are movable crossbeams, and the other crossbeams are fixed crossbeams. The adjustment mechanism includes a support base and an adjustment screw. The support base is movably installed on the top of the support rod through the adjustment screw to form a height fine-tuning structure. The support base is provided with an installation groove, and the movable crossbeam is installed in the installation groove of the support base.

[0005] Furthermore, a fixing hole is provided at the center of the bottom surface of the support base, and a telescopic force-bearing rod is provided at the center of the top of the support rod. The top of the telescopic force-bearing rod is inserted into the fixing hole of the support base. An adjusting screw is provided on each side of the telescopic force-bearing rod, and the two adjusting screws are symmetrically arranged. A screw hole is provided on each side of the fixing hole corresponding to the two adjusting screws, and the adjusting screws are connected to the screw holes.

[0006] Furthermore, a rotating handle is provided on the two adjusting screws. The rotating handle is located in the gap between the support base and the support rod. The rotating handle is made of welded threaded steel.

[0007] Furthermore, a rotating plate is provided at the lower part of the screw, through which the screw passes and is screwed to the support rod, and a threaded steel bar is welded to the edge of the rotating plate to form a rotating handle.

[0008] Furthermore, each fixed crossbeam is locked to the support rod by bolts or clamps, which facilitates installation and disassembly.

[0009] Furthermore, the top of the support rod has a solid column, approximately 10cm in length, on which the adjusting screw and telescopic force-bearing rod are installed, which can improve the strength of the support structure.

[0010] Preferably, the mounting groove of the support base is a semi-circular groove with an upward opening, and the movable crossbeam is embedded in the mounting groove, which facilitates quick installation and disassembly.

[0011] This invention allows for height adjustment of the entire frame layer via a rotating screw, and fine-tuning of the height of the top movable crossbeam via a rotating adjusting screw. This facilitates use in various underground scenarios, particularly adapting to irregular terrain. It is highly practical, flexible, and significantly improves work efficiency while reducing costs. Furthermore, the entire device is easily disassembled for reuse. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the assembly structure of the main body of this utility model;

[0014] Figure 3 This is a schematic diagram of the assembly structure of the support base and the support rod;

[0015] Figure 4 This is a schematic diagram of the bottom structure of the support base.

[0016] In the diagram, 1 is the movable crossbeam, 2 is the adjustment mechanism, 3 is the support rod, 4 is the screw, 41 is the support plate, 42 is the rotating plate, 5 is the support base, 51 is the mounting groove, 52 is the fixing hole, 53 is the screw hole, 6 is the adjusting screw, 61 is the rotating handle, 7 is the telescopic force-bearing rod, and 8 is the fixed crossbeam. Detailed Implementation

[0017] In this embodiment, refer to Figures 1-4 The removable and reusable downhole filling retaining wall device includes a frame layer that can be combined with wooden boards, felt, etc., to form a complete retaining wall. The frame layer includes several support rods 3 and several crossbeams, which are installed crosswise with the support rods 3. A rotatable screw 4 is installed at the bottom end of each support rod 3, and the support rod 3 forms a liftable structure through the support of the screw 4. A support plate 41 is fixed at the bottom end of the screw 4. The crossbeams include movable crossbeams 1 and fixed crossbeams 8. An adjustment mechanism 2 is installed at the top of each support rod 3. The crossbeam installed on the adjustment mechanism 2 is the movable crossbeam 1, which can be adjusted in height individually. The other crossbeams are fixed crossbeams 8, which can achieve overall height adjustment as the support rods 3 are raised and lowered. The adjustment mechanism 2 includes a support base 5 and an adjustment screw 6. The support base 5 is movably installed at the top of the support rod 3 through the adjustment screw 6 to form a height fine-tuning structure. The support base 5 is provided with an installation groove 51, and the movable crossbeam 1 is installed in the installation groove 51 of the support base 5, which can achieve quick installation and disassembly.

[0018] A fixing hole 52 is provided at the center of the bottom surface of the support base 5, and a telescopic force-bearing rod 7 is provided at the center of the top of the support rod 3. The top of the telescopic force-bearing rod 7 is inserted into the fixing hole 52 of the support base 5. An adjusting screw 6 is provided on each side of the telescopic force-bearing rod 7, and the two adjusting screws 6 are symmetrically arranged on the left and right. A screw hole 53 is provided on each side of the fixing hole 52 corresponding to the two adjusting screws 6. The adjusting screws 6 are connected to the screw holes 53 so that they can be rotated for adjustment, thereby realizing the fine adjustment of the height of the movable crossbeam 1.

[0019] A rotating handle 61 is provided on the two adjusting screws 6. The rotating handle 61 is located in the gap between the support base 5 and the support rod 3. The rotating handle 61 is made of threaded steel welded together. Pushing the rotating handle 61 will rotate the adjusting screw 61.

[0020] A rotating plate 42 is provided at the lower part of the screw 4. The screw 4 passes through the rotating plate 42 and is screwed to the support rod 3. A threaded steel bar is welded to the edge of the rotating plate 42 to form a rotating handle. The screw 4 can be rotated by pushing the rotating handle.

[0021] Each fixed crossbeam 8 is locked to the support rod 3 by bolts or clamps, which facilitates installation and disassembly.

[0022] The top of the support rod 3 has a solid column, about 10cm long. The adjusting screw 6 and the telescopic force-bearing rod 7 are both installed on the solid column, which can improve the strength of the support structure.

[0023] The mounting groove 51 of the support base 5 is a semi-circular groove with an upward opening. The movable crossbeam 1 is embedded in the mounting groove 51, which facilitates quick installation and disassembly.

[0024] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A demountable and reusable downhole packing screen apparatus comprising a skeleton layer, the skeleton layer comprising a plurality of support rods and a plurality of crossbeams, the crossbeams being crosswise mounted to the support rods, characterized in that: A rotatable screw rod is installed at the bottom end of each support rod, the support rods form a liftable structure through the support of the screw rods, a support plate is fixed at the bottom end of the screw rod; the cross beams include movable cross beams and fixed cross beams, an adjusting mechanism is installed at the top end of each support rod, the cross beam installed on the adjusting mechanism is a movable cross beam, and the other cross beams are fixed cross beams; the adjusting mechanism includes a support seat and an adjusting screw, the support seat is movably installed at the top end of the support rod through the adjusting screw to form a height fine adjustment structure, an installation slot is arranged on the support seat, and the movable cross beam is installed in the installation slot of the support seat.

2. The detachable and reusable downhole packing screen device of claim 1, wherein: A fixing hole is arranged at the center of the bottom surface of the support seat, an elastic force rod is arranged at the center of the top end of the support rod, the top end of the elastic force rod is inserted into the fixing hole of the support seat, an adjusting screw is arranged on each side of the elastic force rod, and the two adjusting screws are symmetrically arranged; a screw hole is arranged on each side of the fixing hole corresponding to the two adjusting screws, and the adjusting screws are inserted into the screw holes.

3. The detachable and reusable downhole packing screen device of claim 2, wherein: A rotating handle is arranged on each adjusting screw, the rotating handle is located in the gap between the support seat and the support rod, and the rotating handle is welded by using threaded steel.

4. The detachable and reusable downhole packing screen device of claim 1, wherein: A rotating plate is arranged at the lower part of the screw rod, the screw rod is screwed with the support rod through the rotating plate, and threaded steel is welded at the edge of the rotating plate to form a rotating handle.

5. The detachable and reusable downhole packing screen device of claim 1, wherein: Each fixed cross beam is locked and fixed with the support rod through bolts or clamps.

6. The detachable and reusable downhole packing screen device of claim 2, wherein: The top end of the support rod has a solid column, and the adjusting screw and the elastic force rod are installed on the solid column.

7. The detachable and reusable downhole packing screen device of claim 1, wherein: The installation slot of the support seat is a semicircular slot with an upward opening, and the movable cross beam is embedded in the installation slot.

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