A method for quickly plugging a plateau ice lake overflow

By using small-volume, lightweight geotextile bags and Velcro connections in high-altitude areas, combined with machinery and equipment, the problem of rapid sealing of lake overflow disasters in high-altitude areas has been solved, achieving convenient construction and environmental friendliness.

CN119083372BActive Publication Date: 2025-12-16CHINA INST OF WATER RESOURCES & HYDROPOWER RES
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202411418657.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-11
Publication Date
2025-12-16
Estimated Expiration
2044-10-11

AI Technical Summary

Technical Problem

Disasters caused by the overflow of lakes in plateau regions are difficult to contain effectively using traditional engineering measures, and the high-altitude environment limits the feasibility of high-intensity manual construction.

Method used

Small-volume, lightweight geotextile bags are used, connected with Velcro, and combined with machinery for rapid sealing. Screening components and transmission mechanisms improve the efficiency of sand and soil removal. Environmentally friendly materials are used to enhance the stability and erosion resistance of the dam.

Benefits of technology

It achieved efficient and convenient lake overflow containment, reduced the burden on construction workers, improved the stability and resistance to water erosion of the dam, protected the environment from pollution, and did not affect the plateau ecology during the construction process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119083372B_ABST
    Figure CN119083372B_ABST
Patent Text Reader

Abstract

The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is related to water conservancy engineering technical field.The application discloses a kind of highland ice lake overflow rapid plugging disposal method, it is
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, specifically to a method for rapid sealing and handling of overflowing plateau glacial lakes. Background Technology

[0002] With global climate change, increased precipitation and glacial melting in high-altitude regions have led to the overflow of plateau lakes, causing disasters such as flooding houses, grasslands, and roads. To prevent these disasters, emergency measures such as sealing off overflowing lakes are necessary, typically requiring engineering measures to enclose the lake's perimeter. However, the high altitude in high-altitude regions makes it impossible to perform these engineering measures with a large number of manual laborers. Based on the characteristics of high-altitude areas, this paper proposes a simple, feasible, and easy-to-operate method for rapid sealing of overflowing plateau glacial lakes. Summary of the Invention

[0003] The main objective of this invention is to provide a method for rapid sealing and disposal of overflowing plateau glacial lakes, in order to overcome the problems existing in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A method for rapidly sealing and managing the overflow of a plateau glacial lake includes the following steps:

[0006] S1, Precast geotextile bags

[0007] The geotextile bags are made of environmentally friendly materials. Each geotextile bag is small and can hold 10-30 kg of sand. One side of the geotextile bag has a male Velcro fastener and the other side has a female Velcro fastener.

[0008] S2, Filling geotextile bags

[0009] Using sand and soil from around the plateau lake as filler, bulldozing equipment is used to pile up the sand and soil on the foundation of the plateau lake, and then excavation equipment is used to transport the piled sand and soil to a belt elevator. The end outlet of the belt elevator is connected to a hopper, through which the sand and soil are loaded into geotextile bags, and sealing equipment is used to seal the geotextile bags after they are filled with sand and soil.

[0010] S3, Geotextile Bag Dike Construction

[0011] Select a suitable sealing location around the plateau glacial lake, and use a conveyor belt to transport the filled geotextile bags to the sealing location. Stack the geotextile bags in a staggered manner from low to high, and use male and female Velcro fasteners to make adjacent geotextile bags overlap each other.

[0012] Further, the geotextile bag in step S1 is prepared by using polyethylene terephthalate woven fabric and polypropylene geotextile fabric to press and form a bag body of the geotextile bag, cutting the bag body into small geotextile fabrics, and then sewing the geotextile fabrics into the required geotextile bag, and pasting a magic tape male tape and a magic tape female tape on two sides of the geotextile bag, and attaching a dustproof film outside the magic tape male tape and the magic tape female tape.

[0013] Further, the dustproof film is torn off before the geotextile bags are stacked in step S3.

[0014] Further, the lower part of the hopper is provided with a discharging device, the discharging device comprises a sand discharging box, support columns and a support base, the four peripheries of the bottom of the sand discharging box are provided with the support columns which are fixedly connected, the bottom of the support column is provided with the support base which is fixedly connected, the top of the sand discharging box is communicated with a feeding pipe which corresponds to the outlet of the hopper, the bottom of the sand discharging box is communicated with a discharging pipe, and the bottom of the discharging pipe is provided with a control valve.

[0015] Further, the left and right sides of the inner cavity of the sand discharging box are provided with the vibration springs which are fixedly connected, the top of the vibration spring is provided with the clamping seat which is fixedly connected, the upper part of the clamping seat is provided with the screening assembly, the screening assembly comprises a screening box, the top of the screening box is clamped to the clamping seat, the bottom of the screening box is inlaid with a screen, the back side of the bottom of the screening box is provided with a reserved groove, the middle end of the inner cavity of the sand discharging box is provided with a transmission mechanism, the transmission mechanism comprises a semicircular wheel, the semicircular wheel is movably connected to the back side of the inner cavity of the sand discharging box, the middle end of the front surface of the semicircular wheel is provided with the crank shaft which is fixedly connected, the surface of the crank shaft is provided with the movable sleeve which is movably connected, the bottom of the movable sleeve is provided with the connecting rod which is movably connected, and the bottom of the connecting rod is provided with the stirring rod which is movably connected.

[0016] Further, the back side of the sand discharging box is provided with a servo motor which is used for driving the semicircular wheel to rotate, and the output end of the servo motor is fixedly connected to the middle end of the back side of the semicircular wheel.

[0017] Further, the left and right sides of the front surface of the sand discharging box are provided with the box doors which are movably connected through hinges, and the bottom of the inner cavity of the sand discharging box is provided with the guide plate which is fixedly connected.

[0018] Further, the bottom of the left and right sides of the inner wall of the sand discharging box is provided with a second sliding groove, the left and right sides of the connecting rod are provided with the sliding plates which are fixedly connected, and the outer sides of the sliding plates are slidably connected to the inner cavities of the second sliding grooves.

[0019] Further, the left and right sides of the screening box are provided with the sliding blocks which are fixedly connected, the top of the left and right sides of the inner wall of the sand discharging box is provided with a first sliding groove, and the outer sides of the sliding blocks are slidably connected to the inner cavities of the first sliding grooves.

[0020] Further, the left and right sides of the screening box bottom are both provided with fixedly connected clamping blocks, which are clamped in the inner cavities of the clamping seats.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] The small single earthwork bag adopted by the present application has a sand loading capacity of 10-30 kg, small overall volume and light weight, facilitating splicing and carrying, so that the construction personnel have lower load and lower working intensity in the plateau area, and it is easier and more convenient to operate dam building and dike building;

[0023] The adjacent earthwork bags are connected through the connecting structure, the simple connection mode of the magic tape is adopted, and the two earthwork bags can be well connected after being overlapped; the overall stability is improved by utilizing the interlayer friction and embedding effect of the earthwork bags and the connection effect of the magic tape, and the dam body strength is increased;

[0024] The construction mode is mainly machine equipment and supplemented by manual work, the earthwork bags are filled with materials on site, and then sealed, so that the sealing disposal can be quickly completed;

[0025] The semi-circular wheel continuously contacts and separates from the screening box in the rotating process, drives the screening box to move up and down, improves the moving range of the screening box, and in turn improves the screening efficiency of the sandy soil, and the impurities mixed in the sandy soil are blocked in the inner cavity of the screening box; the crankshaft is driven to rotate by the semi-circular wheel, the crankshaft drives the stirring rod to move up and down through the transmission of the movable sleeve and the connecting rod according to the crank mechanism principle, so that the stirring rod stirs up and down in the inner cavity of the discharge pipe, avoiding the accumulation or blockage of the sandy soil during the discharging process, which reduces the discharging efficiency; the screen of the screening box can screen out soil bodies with a particle size larger than the screen and foreign matters, avoiding the phenomenon of not being dense and floating during the filling and sealing of the filled earthwork bags;

[0026] By setting the first sliding groove and the sliding block, the smoothness of the screening box during the up and down movement can be effectively improved, by setting the second sliding groove and the sliding plate, the stability of the connecting rod during the up and down movement can be effectively improved, by setting the flow guide plate, the accumulation of sandy soil in the inner cavity of the sand discharge box can be avoided, by setting the supporting column and the supporting seat, the sand discharge box can be supported, the stability of the whole during the discharging process can be effectively improved, and by setting the clamping seat and the clamping block, the screening box can be disassembled and cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The flow chart of the present application.

[0028] Figure 2 The structure schematic view of the present application.

[0029] Figure 3It is a structural schematic view of the sand box in the back view state of the application.

[0030] Figure 4 It is a structural schematic view of the sand box in the back view state of the application.

[0031] Figure 5 It is a structural schematic view of the sand box in the back view state of the application.

[0032] Figure 6 It is a structural schematic view of the sand box in the back view state of the application.

[0033] Figure 7 It is a structural schematic view of the sand box in the back view state of the application.

[0034] Figure 8 It is a structural schematic view of the sand box in the back view state of the application.

[0035] Figure 9 It is a structural schematic view of the sand box in the back view state of the application.

[0036] Wherein, 1, sand box; 2, support column; 3, support seat; 4, box door; 5, feeding pipe; 6, discharge pipe; 7, servo motor; 8, screening assembly; 801, screening box; 802, screen; 803, sliding block; 804, clamping block; 805, reserved slot; 9, transmission mechanism; 901, semicircular wheel; 902, crankshaft; 903, movable sleeve; 904, connecting rod; 905, stirring rod; 906, sliding plate; 10, vibration spring; 11, clamping seat; 12, first sliding groove; 13, second sliding groove; 14, guide plate. DETAILED DESCRIPTION

[0037] The technical solutions of the application are further described below by means of the drawings and examples.

[0038] In combination Figure 1 , the embodiment provides a highland ice lake overflow rapid plugging disposal method, including the following steps:

[0039] S1, prefabricated geotextile bag

[0040] The geotextile bag is processed by using an environmentally friendly material, the single geotextile bag is small, the sand loading capacity is 10-30 kg, one side of the geotextile bag is provided with a magic tape male post, and the other side is provided with a magic tape female post;

[0041] S2, filling the geotextile bag

[0042] The sand soil around the plateau lake is used as the filling material, the sand soil on the foundation of the plateau lake is piled up by the bulldozing equipment, the piled sand soil is transported to the belt type elevator by the excavating equipment, the end of the belt type elevator is connected with a hopper, the sand soil is loaded into the geotextile bag through the hopper, and the geotextile bag filled with the sand soil is sealed by the sealing equipment.

[0043] S3, building the embankment of the geotextile bag

[0044] A suitable sealing position is selected around the plateau ice lake, the geotextile bag filled with the sand soil is transported to the sealing position by the conveying belt, the geotextile bag is piled up by the way of low-to-high staggered joint laying, and the adjacent two geotextile bags are overlapped by the magic tape male and female.

[0045] In this embodiment, the sand loading amount of the geotextile bag can be adjusted according to the load of the construction personnel to ensure the safety of the construction personnel, and the sand loading amount also needs to be determined according to the stability of the embankment structure. The sand loading amount is determined by considering the two aspects, which is more reasonable. As preferred, the sand loading amount is 20 kg.

[0046] In this embodiment, the geotextile bag in step S1 is prepared by pressing the polyethylene terephthalate glycol fat woven cloth and the polypropylene geotextile cloth to form the bag body of the geotextile bag, cutting the geotextile cloth into small monomers, and then sewing the geotextile bag as required. The magic tape male and female are respectively pasted on both sides of the geotextile bag, and the dustproof film is attached outside the magic tape male and female.

[0047] The geotextile bag made of this material has strong anti-aging, anti-piercing, anti-top breaking and anti-water flow scouring ability, and does not pollute the environment, is convenient for mechanized construction, further avoids the use of a large amount of manpower, and will not easily age under strong ultraviolet rays in the plateau area. The water blocking effect is good, which can protect the sand body in the bag from being taken out, is suitable for the plateau environment, and is not like ordinary non-woven geotextile bag which is weathered and broken in one or two years.

[0048] In this embodiment, the dustproof film is torn off before the geotextile bag is piled up in step S3.

[0049] The bottom of the hopper in step S2 is provided with a discharging device, the discharging device comprises a sand discharging box 1, a supporting column 2 and a supporting base 3, the supporting column 2 is fixedly connected and arranged around the bottom of the sand discharging box 1, the supporting base 3 is fixedly connected and arranged at the bottom of the supporting column 2, the vibration spring 10 is fixedly connected and arranged at the left and right sides of the inner cavity of the sand discharging box 1, the clamping base 11 is fixedly connected and arranged at the top of the vibration spring 10, the feeding pipe 5 is communicated with the top of the sand discharging box 1, the discharging pipe 6 is communicated with the bottom of the sand discharging box 1, and the control valve is arranged at the bottom of the surface of the discharging pipe 6, the left and right sides of the front surface of the sand discharging box 1 are hingedly connected with the box door 4, the flow guide plate 14 is fixedly connected and arranged at the bottom of the inner cavity of the sand discharging box 1, and the screening assembly 8 and the transmission mechanism 9 are arranged on the sand discharging box 1.

[0050] In the embodiment, the screening assembly 8 is located above the clamping base 11, and the screening assembly 8 comprises a screening box 801, the screening box 801 is clamped at the top of the clamping base 11, the screen 802 is inlaid at the bottom of the screening box 801, the reserved groove 805 is arranged at the back of the bottom of the screening box 801, the sliding block 803 is fixedly connected and arranged at the left and right sides of the screening box 801, the first sliding groove 12 is arranged at the top of the left and right sides of the inner wall of the sand discharging box 1, the outer side of the sliding block 803 is slidingly connected to the inner cavity of the first sliding groove 12, and the clamping block 804 is fixedly connected and arranged at the left and right sides of the bottom of the screening box 801 and clamped in the inner cavity of the clamping base 11.

[0051] The semi-circular wheel 901 is in contact with and separated from the screening box 801 during rotation, drives the screening box 801 to move up and down, improves the moving amplitude of the screening box 801, and further improves the screening efficiency of the sand soil, and the impurities mixed in the sand soil are blocked in the inner cavity of the screening box 801, the first sliding groove 12 and the sliding block 803 can effectively improve the smoothness of the screening box 801 during the up and down movement, and the clamping base 11 and the clamping block 804 can disassemble and clean the screening box 801.

[0052] It should be emphasized that the aperture of the screen 802 can be set according to the specific particle size of the soil body at the location of the plugging engineering, mainly to screen out soil bodies with super particle size and foreign matters, and avoid the phenomenon of arching and non-compaction during filling.

[0053] In this embodiment, the transmission mechanism 9 is located in the middle end of the inner cavity of the sand box 1, the transmission mechanism 9 includes a semicircular wheel 901, the semicircular wheel 901 is movably connected to the back side of the inner cavity of the sand box 1, the middle end of the front surface of the semicircular wheel 901 is provided with a fixedly connected crankshaft 902, the surface of the crankshaft 902 is provided with a movably connected movable sleeve 903, the bottom of the movable sleeve 903 is provided with a movably connected connecting rod 904, the bottom of the connecting rod 904 is provided with a movably connected stirring rod 905, the back side of the sand box 1 is provided with a servo motor 7 for driving the semicircular wheel 901 to rotate, the output end of the servo motor 7 is fixedly connected to the middle end of the back side of the semicircular wheel 901, the bottom of the left and right sides of the inner wall of the sand box 1 is provided with a second sliding groove 13, the left and right sides of the connecting rod 904 are provided with fixedly connected sliding plates 906, and the outer side of the sliding plate 906 is slidably connected to the inner cavity of the second sliding groove 13.

[0054] The semicircular wheel 901 drives the crankshaft 902 to rotate, the crankshaft 902 drives the stirring rod 905 to move up and down through the transmission of the movable sleeve 903 and the connecting rod 904 by using the principle of the crank mechanism, so that the stirring rod 905 stirs up and down in the inner cavity of the discharge pipe 6, avoiding the accumulation or blockage of the sand during the discharging process, which reduces the discharging efficiency, the second sliding groove 13 and the sliding plate 906 can effectively improve the stability of the connecting rod 904 during the up and down movement, the flow guide plate 14 can avoid the accumulation of sand in the inner cavity of the sand box 1, the support column 2 and the support seat 3 can support the sand box 1, effectively improving the stability of the whole during the discharging process.

[0055] During the filling of the geotextile bag with sand, the sand enters the inner cavity of the sand box 1 through the feeding pipe 5, the output end of the servo motor 7 drives the semicircular wheel 901 to rotate, when the semicircular wheel 901 rotates upward and contacts the screening box 801, the screening box 801 moves upward due to the pushing of the semicircular wheel 901, and at the same time, the vibration spring 10 also deforms upward along with the movement of the screening box 801, when the semicircular wheel 901 rotates downward and cannot contact the screening box 801, the semicircular wheel 901 moves downward under the influence of gravity, the vibration spring 10 is pressed downward due to the weight of the screening box 801, and then restores the deformation, under the action of the elastic force, the sand in the inner cavity of the screening box 801 is screened, and the screening efficiency and effect of the sand are improved, the large particles or impurities mixed in the sand are blocked in the inner cavity of the screening box 801, avoiding the increase of the volume of the filler affecting the strength and stability of the geotextile bag, and avoiding the blockage of the discharge pipe 6 by large particles or impurities;

[0056] In the discharging process, the semi-circular wheel 901 drives the crankshaft 902 to rotate, and the crankshaft 902 drives the stirring rod 905 to move up and down through the transmission of the movable sleeve 903 and the connecting rod 904 according to the principle of the crank mechanism, so that the stirring rod 905 stirs up and down in the inner cavity of the discharge pipe 6, avoiding the accumulation or blockage of the sand soil in the discharging process, thereby reducing the discharging efficiency.

[0057] The supporting seat 3 can be provided with a weighing device, and the sand soil flowing out of the discharge pipe 6 enters the geotextile bag. When the display screen of the weighing device displays that the sand soil in the geotextile bag reaches the set threshold value, the control valve is closed, and then the opening of the geotextile bag is sealed by using a sealing machine. The filled geotextile bag is conveyed to the position to be plugged by a conveying belt.

[0058] The embodiment mainly aims at the construction disposal method in the special environment (highland environment), and improves the material, structure and construction process of the geotextile bag. Compared with the direct dam construction of sand soil, the problem of water flow scouring is solved, and the dam body strength is high and the overall stability is strong.

[0059] The geotextile bag is made of environment-friendly material, and when the dam body is removed, only the geotextile bag needs to be transported as construction residue, and the sand soil in the geotextile bag can be returned to the original place, so that the highland ecological protection area will not be damaged; the geotextile bag is changed into a small single structure, the sand loading capacity is 10-30 kg, and the weight is light, so that the staff can easily carry during construction, and the staff in the highland area will not work under high load; the construction method of taking materials on site mainly by machine equipment and supplemented by manual work provides the construction speed.

[0060] The above is only the preferred embodiment of the present application, and does not limit the technical scope of the present application in any way. Any slight modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical solution of the present application.

Claims

1. A method for quickly plugging a spillway of a plateau lake, characterized in that, The method comprises the following steps: S1, prefabricated earthwork bag The earthwork bag is made of environmentally friendly materials, and the single unit of the earthwork bag is small, with a sand loading capacity of 10-30 kg. One side of the earthwork bag is provided with a Velcro male fastener, and the other side is provided with a Velcro female fastener. S2, filling earthwork bag The sand soil around the plateau lake is used as the filling material. The sand soil on the plateau lake foundation is piled up by a bulldozing device, and then the piled sand soil is transported to a belt type elevator. The end of the belt type elevator is connected with a hopper. The sand soil is loaded into the earthwork bag through the hopper, and the earthwork bag filled with sand soil is sealed by a sealing device. S3, earthwork bag embankment Suitable sealing positions are selected around the plateau ice lake. The filled earthwork bags are transported to the sealing positions by a conveyor belt. The earthwork bags are piled up by a low-to-high staggered joint laying method, and the adjacent two earthwork bags are overlapped by the Velcro male fastener and the Velcro female fastener. In step S1, the earthwork bag is made of polyethylene terephthalate glycol woven fabric and polypropylene earthwork cloth. The earthwork bag body is cut into small single units of earthwork cloth, and then sewn into the required earthwork bag. The Velcro male fastener and the Velcro female fastener are attached to the two sides of the earthwork bag, and a dustproof film is attached to the outside of the Velcro male fastener and the Velcro female fastener. In step S3, the dustproof film is removed before the earthwork bags are piled up. In step S2, a discharging device is arranged below the hopper. The discharging device comprises a sand discharging box, support columns and a support base. The support columns are fixedly connected to the periphery of the bottom of the sand discharging box. The support base is fixedly connected to the bottom of the support columns. The sand discharging box is communicated with a feeding pipe corresponding to the outlet of the hopper at the top. The sand discharging box is communicated with a discharging pipe at the bottom. The bottom of the discharging pipe is provided with a control valve. Vibration springs are fixedly connected to the left and right sides of the inner cavity of the sand discharging box. The top of the vibration springs is fixedly connected with a clamping seat. A screening assembly is arranged above the clamping seat. The screening assembly comprises a screening box. The screening box is clamped to the top of the clamping seat. A screen is inlaid at the bottom of the screening box. A reserved groove is formed at the back of the bottom of the screening box. A transmission mechanism is arranged at the middle end of the inner cavity of the sand discharging box. The transmission mechanism comprises a semicircular wheel. The semicircular wheel is movably connected to the back of the inner cavity of the sand discharging box. A crankshaft is fixedly connected to the middle end of the front surface of the semicircular wheel. An activity sleeve is movably connected to the surface of the crankshaft. A connecting rod is movably connected to the bottom of the activity sleeve. An agitating rod is movably connected to the bottom of the connecting rod. A servo motor is arranged on the back of the sand discharging box to drive the semicircular wheel to rotate. The output end of the servo motor is fixedly connected to the middle end of the back of the semicircular wheel. Hinged box doors are movably connected to the left and right sides of the front surface of the sand discharging box. A guide plate is fixedly connected to the bottom of the inner cavity of the sand discharging box. Second sliding grooves are formed at the bottom of the left and right sides of the inner wall of the sand discharging box. Sliding plates are fixedly connected to the left and right sides of the connecting rod. The outer sides of the sliding plates are slidably connected to the inner cavities of the second sliding grooves. Both left and right sides of the screening box are equipped with fixedly connected sliding blocks, and the top of the left and right sides of the inner wall of the sand outlet box is provided with a first sliding groove; Both left and right sides of the bottom of the screening box are equipped with fixedly connected clamping blocks, and the clamping blocks are clamped in the inner cavity of the clamping seat.

Citation Information

Patent Citations

  • Construction method and construction equipment for banking through soilbags filled with solidified original-state silt

    CN109898467A

  • Flood prevention bag for emergency disposal of dam overflow

    CN218322614U

  • Anti-blocking feeding device for film blowing machine

    CN221737075U