Reusable combined geotextile tube bag and use method thereof

Abstract

The invention discloses a reusable combined geotextile tube bag and a use method thereof. Relates to the technical field of geotextile tube bags, and adopts a top cloth, a bottom cloth and a locking device, a filling connector is reserved in the center of the top end of the top cloth, the top cloth and the bottom cloth are the same in size, upper connecting pieces are arranged on the four edges of the top cloth, and lower connecting pieces are arranged on the four edges of the bottom cloth. The geotextile tube bags are componentized and assembled, the geotextile tube bags are combined through the top cloth, the bottom cloth, the filling connectors, the upper connecting pieces, the lower connecting pieces, the corner connecting blocks and the locking devices, the components can be subjected to industrialized production, the quality is controllable, the components can be spliced and formed on the construction site, the dehydration efficiency of on-site slurry is greatly improved, and the construction period is shortened. The multiple clamping grooves are formed in the bottom end of the upper connecting piece, the protruding block is fixedly installed at the top end of the lower connecting piece, and the clamping grooves are connected with the protruding block in a buckled mode, so that the sealing performance of the geotextile pipe bag is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of geotechnical pipe bag, in particular to a reusable combined geotechnical pipe bag and a using method thereof. BACKGROUND

[0002] In recent years, a large number of reclamation projects have been carried out in many coastal areas. The water content of some newly dredged soft soil layers is as high as 80% or more, and the strength and bearing capacity are extremely low. In addition, there are widely distributed deep soft clay layers below the dredged soil layers, which have the characteristics of high water content, large compressibility, low strength and low bearing capacity.

[0003] The traditional mud treatment method mainly includes mud pool sedimentation and air drying method, waste soil truck transportation to designated site stacking method, and mechanical pressure filtration method. There are problems such as high mud treatment cost, low efficiency, easy leakage and pollution of urban environment, safety hazards and land later management and recovery. Therefore, more efficient, lower consumption and more environmentally friendly geotechnical pipe bags have gradually attracted the attention of technical personnel. However, in the prior art, the sewing efficiency of the top cloth and the bottom cloth of the geotechnical pipe bag is low, and it can only be used once, which greatly increases the purchase cost of the geotechnical pipe bag. In order to improve the splicing efficiency of the geotechnical pipe bag, improve the utilization rate of the geotechnical pipe bag, reduce the use amount of the geotechnical pipe bag, save social resources, save the cost of treating dredged soil and mud soil, improve the competitiveness, a reusable combined geotechnical pipe bag and a using method thereof are needed. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a reusable combined geotechnical pipe bag and a using method thereof, which solves the problems raised in the current background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A reusable combined geotechnical pipe bag and a using method thereof, comprising a top cloth, a bottom cloth and a locking device, a filling connector is reserved at the center of the top end of the top cloth, the top cloth and the bottom cloth are the same size, four edges of the top cloth are provided with upper connecting pieces, four edges of the bottom cloth are provided with lower connecting pieces, a plurality of clamping grooves are arranged at the bottom end of the upper connecting piece, a protruding block matched with the clamping groove is fixedly installed at the top end of the lower connecting piece, the clamping groove and the protruding block are buckled connected, an angle connecting piece is arranged on one side of the upper connecting piece, symmetrical connecting buckles are arranged at both ends of the upper connecting piece and the lower connecting piece, a lock buckle matched with the connecting buckle is arranged on both sides of the angle connecting piece, the connecting buckle and the lock buckle are used in cooperation, and the locking device is arranged on the outer side of the upper connecting piece and the lower connecting piece.

[0007] Preferably, the top cloth and the bottom cloth are made of high-strength polyester fiber and polypropylene composite geotextile.

[0008] Preferably, the top cloth and the outer surface of the bottom cloth are coated with an anti-ultraviolet coating, which is a nano-titanium dioxide coating.

[0009] Preferably, the bottom cloth is internally provided with a plurality of reinforcing ribs, which form a honeycomb support structure, and a water-permeable gap is arranged between each honeycomb cell in the honeycomb support structure.

[0010] Preferably, the locking device comprises a first fixed block, one side of the lower connecting piece is provided with a second fixed block, the bottom end of the first fixed block is fixedly installed with a movable rod, the top end of the second fixed block is provided with a movable slot, the movable rod and the movable slot are movably connected, one side of the movable rod is provided with a guide slot, the inside of the second fixed block is provided with a spring, one side of the spring is provided with a push block, one side of the push block is provided with a guide block, the guide slot and the guide block are used in cooperation, the front and back of the push block are provided with sliding blocks, and the two sides of the second fixed block are provided with sliding grooves, and the sliding blocks and the sliding grooves are slidably connected.

[0011] A method for using a reusable combined earthwork pipe bag, comprising the following steps:

[0012] 1) The top cloth and the bottom cloth are made of high-strength polyester fiber and polypropylene composite earthwork cloth, the four edges of the top cloth and the upper connecting piece are fixedly connected by sewing, adhesive or screw / rivet, the four edges of the bottom cloth and the lower connecting piece are fixedly connected by sewing, adhesive or screw / rivet, and a filling connector is installed at the center of the top cloth;

[0013] 2) The bottom cloth is laid flat on the workbench or the bottom surface, then the top cloth is covered on the bottom cloth, the corners of the two cloths are aligned, and the side provided with the filling connector is upward;

[0014] 3) The movable rod is inserted into the movable slot of the second fixed block, then the sliding block is pulled to the left side in the sliding groove, the sliding block drives the push block to stretch the spring, the guide block is inserted into the guide slot on one side of the movable rod, so that the guide block clamps the movable rod, the upper connecting piece and the lower connecting piece are locked, the clamping slot at the bottom end of the upper connecting piece is buckled with the protruding block fixedly installed at the top end of the lower connecting piece, so as to close the entire earthwork pipe bag;

[0015] 4) Then the connecting buckles opened at both ends of the upper connecting piece and the lower connecting piece are used in cooperation with the lock buckles arranged on the two side surfaces of the corner connecting piece, so as to complete the connection of one side, and the connection of the remaining corners and sides is completed in this way, and the assembly of the earthwork pipe bag is completed;

[0016] 5) determine the soil bag in the slurry dewatering is completed, separate the lock and the connection buckle, make the angle connecting block away from the upper connecting piece and the lower connecting piece, then pull the slider in the slide groove to the right side, the slider drives the push block to extrude the spring, makes the guide block away from the guide groove opened in the side of the movable rod, thereby releases the clamping of the guide block to the movable rod, makes the convex block away from the clamping groove, makes the upper connecting piece away from the lower connecting piece;

[0017] 6) open the top cloth, dig out the soil after the slurry dewatering;

[0018] 7) the top cloth, the bottom cloth, the filling joint, the upper connecting piece, the lower connecting piece, the angle connecting block and the locking device are put into clean water and washed, and are left for next use after air drying.

[0019] Compared with the prior art, the beneficial effects achieved by the application are:

[0020] The reusable combined soil pipe bag and the use method thereof provided by the application can be assembled by the top cloth, the bottom cloth, the filling joint, the upper connecting piece, the lower connecting piece, the angle connecting block and the locking device, and the components can be factory-produced and quality-controlled, so that the soil pipe bag can be assembled and formed on the construction site, the dewatering efficiency of the slurry on the site is greatly improved, the sealing performance of the soil pipe bag is improved by the clamping groove and the convex block, the strength of the corner connecting part is greatly improved by the connection buckle and the lock on the two ends of the upper connecting piece and the lower connecting piece, and the danger of the slurry filling along the joint is avoided;

[0021] The utility model discloses a locking device is set up, when the slurry in soil pipe bag dewatering ends, through the cooperation connection of separating lock and connection buckle, the angle connecting block is away from the upper connecting piece and the lower connecting piece, then pull the slider in the slide groove to the right side, the slider drives the push block to extrude the spring, makes the guide block away from the guide groove opened in the side of the movable rod, thereby releases the clamping of the guide block to the movable rod, makes the convex block away from the clamping groove, makes the upper connecting piece away from the lower connecting piece, can separate the top cloth and the bottom cloth, can be repeatedly used after washing, thereby improve the repeat utilization of soil pipe bag, and further reduce construction cost;

[0022] The utility model discloses a top cloth and bottom cloth are made of high strength polyester fiber and polypropylene composite geotextile, and the high strength polyester fiber is combined with the thick denier filament structure of polypropylene, has high impact and puncture resistance, can improve the service life of geotextile pipe bag greatly, and the uniform pore structure of polypropylene is combined with the filtering characteristic of high strength polyester fiber, can improve the dewatering effect of slurry greatly, and the outer surface of top cloth and bottom cloth is coated with ultraviolet resistant coating, and the ultraviolet resistant coating is nanometer titanium dioxide coating, can absorb and shield ultraviolet, thereby can improve the service life of geotextile pipe bag,

[0023] The utility model discloses a bottom cloth inside is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs form honeycomb support structure, and the honeycomb support structure can evenly distribute the pressure of slurry in geotextile pipe bag, thereby greatly improving the compressive strength in geotextile pipe bag, reducing the risk of rupture due to uneven local stress, and water permeable gap is arranged between each honeycomb unit in honeycomb support structure, and cooperates with the water permeable characteristic of high strength polyester fiber and polypropylene composite geotextile, thereby accelerating the drainage consolidation of slurry in geotextile pipe bag, and further improving the dewatering effect of slurry. ACCURACY OF DRAWINGS

[0024] Figure 1 It is the three-dimensional structure schematic drawing of the utility model.

[0025] Figure 2 It is the sectional view of the utility model.

[0026] Figure 3 It is the internal structure schematic drawing of the bottom of the utility model.

[0027] Figure 4 It is the sectional view of the top cloth of the utility model.

[0028] Figure 5 It is the three-dimensional structure schematic drawing of the corner connecting block of the utility model.

[0029] Figure 6 It is the internal structure schematic drawing of the locking device of the utility model.

[0030] Figure 7 It is the A place local structure amplification schematic drawing of Figure 1 .

[0031] Figure 8 It is the B place local structure amplification schematic drawing of Figure 2 .

[0032] Figure: 1, top cloth; 1.1, ultraviolet protection layer; 2, bottom cloth; 3, filling joint; 4, reinforcing rib; 5, upper connecting piece; 6, lower connecting piece; 7, clamping groove; 8, protruding block; 9, corner connecting block; 10, lock; 11, connecting buckle; 12, locking device; 12.1, first fixed block; 12.2, second fixed block; 12.3, movable rod; 12.4, movable groove; 12.5, guide groove; 12.6, spring; 12.7, push block; 12.8, guide block; 12.9, sliding block; 12.91, sliding groove. DETAILED DESCRIPTION

[0033] To further illustrate the embodiments, the present application provides drawings which are part of the disclosure of the present application, mainly used to illustrate the embodiments, and can be used to explain the operating principle of the embodiments in conjunction with the related description of the specification. Those skilled in the art should be able to understand other possible implementations and advantages of the present application by referring to these contents. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0034] According to an embodiment of the present application, a reusable combined geotechnical pipe bag and its use method are provided.

[0035] Embodiment one:

[0036] As shown in the drawings Figure 1 A reusable combined geotechnical pipe bag and its use method, including top cloth 1, bottom cloth 2, locking device 12, the top end center of the top cloth 1 is reserved with a filling joint 3, the size of the top cloth 1 and the bottom cloth 2 is the same, the four edges of the top cloth 1 are provided with upper connecting pieces 5, the four edges of the bottom cloth 2 are provided with lower connecting pieces 6, the bottom end of the upper connecting piece 5 is provided with a plurality of clamping grooves 7, the top end of the lower connecting piece 6 is fixedly installed with protruding blocks 8 matched with the clamping grooves 7, the clamping grooves 7 and the protruding blocks 8 are buckled connected, one side of the upper connecting piece 5 is provided with a corner connecting piece 9, both ends of the upper connecting piece 5 and the lower connecting piece 6 are provided with symmetrical connecting buckles 11, both sides of the corner connecting piece 9 are provided with lock buckles 10 matched with the connecting buckles 11, the connecting buckles 11 and the lock buckles 10 are used in cooperation, the outer sides of the upper connecting piece 5 and the lower connecting piece 6 are provided with locking devices 12.

[0037] Embodiment two:

[0038] As shown in the drawings Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, a reusable combined earthwork pipe bag is constructed by componentizing and assembling the earthwork pipe bag, and the earthwork pipe bag is combined by top cloth 1, bottom cloth 2, filling joint 3, upper connecting piece 5, lower connecting piece 6, corner connecting block 9 and locking device 12. The components can be factory-produced and quality-controlled, and can be assembled and formed on the construction site, thereby greatly improving the dewatering efficiency of the slurry on site.

[0039] In which a plurality of clamping grooves 7 are provided at the bottom end of the upper connecting piece 5, and a protrusion 8 is fixedly installed at the top end of the lower connecting piece 6, and the clamping grooves 7 and the protrusion 8 are buckled connected, thereby improving the sealing performance of the earthwork pipe bag. At the same time, connecting buckles 11 are provided at both ends of the upper connecting piece 5 and the lower connecting piece 6, and buckling locks 10 are provided on both sides of the corner connecting block 9, and the corner connecting block 9 can be pressed between the two groups of upper connecting pieces 5 and lower connecting pieces 6 through the cooperation of the connecting buckles 11 and the buckling locks 10, thereby completing the connection of each corner and each side, thereby greatly improving the strength of each corner connection and avoiding the risk of slurry rupture along the joint during slurry filling.

[0040] In which the locking device 12 is provided, and when the dewatering of the slurry in the earthwork pipe bag is completed, the corner connecting block 9 is separated from the upper connecting piece 5 and the lower connecting piece 6 by cooperating the buckling lock 10 and the connecting buckle 11, and then the sliding block 12.9 is pulled in the sliding groove 12.91 to the right side, the sliding block 12.9 drives the push block 12.7 to extrude the spring 12.6, so that the guide block 12.8 is away from the guide groove 12.5 opened on one side of the movable rod 12.3, thereby releasing the clamping of the guide block 12.8 to the movable rod 12.3, and the protrusion 8 is away from the clamping groove 7, so that the upper connecting piece 5 is away from the lower connecting piece 6, thereby separating the top cloth 1 and the bottom cloth 2, and after cleaning, the top cloth 1 and the bottom cloth 2 can be reused, thereby improving the reuse rate of the earthwork pipe bag and reducing the construction cost.

[0041] As shown in the drawings Figure 3 In which a plurality of reinforcing ribs 4 are provided inside the bottom cloth 2, and the plurality of reinforcing ribs 4 form a honeycomb support structure, which can uniformly distribute the pressure generated by the slurry inside the earthwork pipe bag, thereby greatly improving the compressive strength of the earthwork pipe bag and reducing the risk of rupture due to uneven local stress. In addition, water-permeable gaps are provided between each honeycomb unit in the honeycomb support structure, which cooperates with the water-permeable properties of the high-strength polyester fiber and polypropylene composite earthwork cloth, thereby accelerating the drainage and consolidation of the slurry inside the earthwork pipe bag, and thereby improving the dewatering effect of the slurry.

[0042] As shown in the drawings Figure 4As shown, wherein by adopting high-strength polyester fiber and polypropylene composite geotextile made of top cloth 1 and bottom cloth 2, the toughness of high-strength polyester fiber combined with the coarse denier filament structure of polypropylene has high impact and puncture resistance, which can greatly improve the service life of the geotextile tube bag, and the uniform pore structure of polypropylene combined with the filtering properties of high-strength polyester fiber can greatly improve the dewatering effect of the slurry, and at the same time, the outer surface of the top cloth 1 and the bottom cloth 2 is coated with an ultraviolet resistant coating 1.1, which is a nano titanium dioxide coating that can absorb and shield ultraviolet rays, thereby improving the service life of the geotextile tube bag.

[0043] As shown in the accompanying drawings Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, a method for using a reusable combined geotextile tube bag, comprising the following steps:

[0044] 1) Adopting high-strength polyester fiber and polypropylene composite geotextile to make top cloth 1 and bottom cloth 2, fixing and connecting the four edges of the top cloth 1 and the upper connecting piece 5 by sewing, adhesive or screw / rivet, and fixing and connecting the four edges of the bottom cloth 2 and the lower connecting piece 6 by sewing, adhesive or screw / rivet, and installing a filling joint 3 at the center of the top cloth 1;

[0045] 2) Place the bottom cloth 2 on the workbench or floor, then cover the top cloth 1 on the bottom cloth 2, align the corners of the two cloths, and set the side with the filling joint 3 upwards;

[0046] 3) Insert the movable rod 12.3 into the movable slot 12.4 of the second fixed block 12.2, then pull the sliding block 12.9 in the sliding groove 12.91 to the left side, the sliding block 12.9 drives the push block 12.7 to stretch the spring 12.6, so that the guide block 12.8 is inserted into the guide slot 12.5 on one side of the movable rod 12.3, thereby clamping the movable rod 12.3 with the guide block 12.8, locking the upper connecting piece 5 and the lower connecting piece 6, and making the bottom end of the upper connecting piece 5 with the clamping groove 7 and the top end of the lower connecting piece 6 with the protruding block 8 buckle connection, thereby closing the entire geotextile tube bag;

[0047] 4) Then use the connecting buckle 11 on both ends of the upper connecting piece 5 and the lower connecting piece 6 with the lock buckle 10 on both sides of the corner connecting piece 9, thereby completing the connection of one side, and using this method to complete the connection of the remaining corners and sides, and complete the assembly of the geotextile tube bag;

[0048] 5) determine the soil bag in the slurry dewatering is completed, separate buckle 10 and connecting buckle 11, make the angle connecting block 9 away from the upper connecting piece 5 and the lower connecting piece 6, then pull the slider 12.9 in the chute 12.91 to the right side, the slider 12.9 drives the push block 12.7 to extrude the spring 12.6, make the guide block 12.8 away from the guide groove 12.5 opened in the side of the movable rod 12.3, so that the guide block 12.8 is released to the movable rod 12.3, then the lug 8 is away from the card slot 7, make the upper connecting piece 5 away from the lower connecting piece 6;

[0049] 6) the top cloth 1 is opened, and the soil after the slurry dewatering is removed;

[0050] 7) the top cloth 1, the bottom cloth 2, the filling joint 3, the upper connecting piece 5, the lower connecting piece 6, the angle connecting block 9 and the locking device 12 are put into clean water for washing, and are left for next use after air drying.

[0051] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0052] In the present application, unless otherwise explicitly specified and limited, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0053] It should be noted that, in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.

[0054] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A reusable modular geotube bag, characterized by: The invention comprises a top cloth (1), a bottom cloth (2), and a locking device (12). A filling joint (3) is reserved at the center of the top of the top cloth (1). The top cloth (1) and the bottom cloth (2) have the same size. The four sides of the top cloth (1) are all provided with upper connecting pieces (5). The four sides of the bottom cloth (2) are all provided with lower connecting pieces (6). The bottom end of the upper connecting piece (5) is provided with a plurality of slots (7). The top end of the lower connecting piece (6) is fixedly provided with a protrusion (8) that matches the slots (7). The card slot (7) is snap-connected with the protrusion (8), a corner connector (9) is provided on one side of the upper connector (5), symmetrical connecting buckles (11) are provided at both ends of the upper connector (5) and the lower connector (6), and locking buckles (10) are provided on both sides of the corner connector (9) for matching with the connecting buckles (11), the connecting buckles (11) and the locking buckles (10) are used in conjunction with each other, and locking devices (12) are provided on the outer sides of the upper connector (5) and the lower connector (6).

2. The reusable combined geotube bag according to claim 1, characterized in that: The top cloth (1) and the bottom cloth (2) are both made of high-strength polyester fiber and polypropylene composite geotextile.

3. The reusable combined geotube bag according to claim 1, characterized in that: The outer surfaces of the top cloth (1) and the bottom cloth (2) are both coated with an anti-ultraviolet coating (1.1), and the anti-ultraviolet coating (1.1) is a nano titanium dioxide coating.

4. The reusable combined geotube bag according to claim 1, characterized in that: A plurality of reinforcing ribs (4) are arranged inside the base fabric (2), and the plurality of reinforcing ribs (4) form a honeycomb support structure, wherein water-permeable gaps are arranged between each honeycomb unit in the honeycomb support structure.

5. The reusable combined geotube bag according to claim 1, characterized in that: The locking device (12) comprises a first fixed block (12.1), a second fixed block (12.2) is provided on one side of the lower connecting member (6), a movable rod (12.3) is fixedly installed at the bottom end of the first fixed block (12.1), a movable groove (12.4) is provided on the surface of the second fixed block (12.2), the movable rod (12.3) and the movable groove (12.4) are movably connected, a guide groove (12.5) is provided on one side of the movable rod (12.3), and the second fixed block (12.2) is provided with a movable groove (12.4). A spring (12.6) is provided inside, a push block (12.7) is provided on one side of the spring (12.6), a guide block (12.8) is provided on one side of the push block (12.7), the guide groove (12.5) and the guide block (12.8) are used in conjunction with each other, a slider (12.9) is provided on the front and rear of the push block (12.7), a slide groove (12.91) is provided on both sides of the second fixed block (12.2), and the slider (12.9) and the slide groove (12.91) are in sliding connection.

6. A method for using a reusable modular geotube bag according to claim 1 or 2, comprising the following steps: 1) A top fabric (1) and a bottom fabric (2) made of a composite geotextile of high-strength polyester fiber and polypropylene are used, the four sides of the top fabric (1) and the upper connecting piece (5) are fixedly connected by sewing, adhesive or screws / rivets, the four sides of the bottom fabric (2) and the lower connecting piece (6) are fixedly connected by sewing, adhesive or screws / rivets, and a filling joint (3) is installed at the center of the top fabric (1); 2) Lay the bottom cloth (2) flat on a workbench or bottom surface, then cover the top cloth (1) on the bottom cloth (2), align the corners of the two cloths, and place the side with the filling joint (3) upwards; 3) Insert the movable rod (12.3) into the movable groove (12.4) provided by the second fixed block (12.2), and then pull the slider (12.9) to the left in the slide groove (12.91), so that the slider (12.9) drives the push block (12.7) to stretch the spring (12.6), so that the guide block (12.8) is inserted into the guide groove (12.5) provided on one side of the movable rod (12.3), thereby clamping the guide block (12.8) to the movable rod (12.3), so that the upper connecting piece (5) and the lower connecting piece (6) are locked, so that the slot (7) provided at the bottom end of the upper connecting piece (5) is buckled with the protrusion (8) fixedly installed at the top end of the lower connecting piece (6), thereby closing the entire geotube bag; 4) Then, the connecting buckles (11) provided at both ends of the upper connecting piece (5) and the lower connecting piece (6) are used in conjunction with the locking buckles (10) provided on both sides of the corner connecting piece (9) to complete the connection of one side. In this way, the connection of the remaining corners and sides is completed, and the assembly of the geotube bag is completed; 5) After confirming that the slurry in the geotube bag has been dehydrated, the buckle (10) and the connecting buckle (11) are separated, so that the corner connecting block (9) is away from the upper connecting piece (5) and the lower connecting piece (6), and then the slider (12.9) is pulled to the right in the slide groove (12.91). The slider (12.9) drives the push block (12.7) to squeeze the spring (12.6), so that the guide block (12.8) is away from the guide groove (12.5) provided on one side of the movable rod (12.3), thereby releasing the clamping of the guide block (12.8) on the movable rod (12.3), and then the protrusion (8) is moved away from the clamping groove (7), so that the upper connecting piece (5) is away from the lower connecting piece (6); 6) Lift the top cloth (1) and dig out the soil after the mud is dehydrated; 7) Wash the top cloth (1), bottom cloth (2), filling joint (3), upper connecting piece (5), lower connecting piece (6), corner connecting block (9) and locking device (12) in clean water, and air dry them for next use.

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