A digging device for soft foundation dredging and backfill construction

By designing an excavation device to solidify and discharge silt at the construction site, the problem of time-consuming and labor-intensive dredging and backfilling in existing technologies has been solved, achieving efficient silt treatment and backfilling.

CN224314260UActive Publication Date: 2026-06-02SHANDONG LUQIAO GROUP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG LUQIAO GROUP CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing dredging and backfilling projects are time-consuming and labor-intensive, requiring the silt to be excavated to a designated location, solidified, and then returned to the site.

Method used

Design an excavation device that uses the excavator body to send silt into a solidification box. The solidification tank wall is used to squeeze out water by using a silt-forming plate, a silt-pressing plate, and a pressure plate. The solidified silt is then discharged through the silt outlet for backfilling.

Benefits of technology

The process is simplified, saving time and effort, and the silt removal and backfilling can be completed directly on the construction site.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of soft soil foundation dredging and backfilling construction technology, and in particular to an excavation device for soft soil foundation dredging and backfilling construction. It includes a base plate, an excavator body rotatably connected to the base plate, and a curing box connected to the base plate. The curing box has a drainage outlet, and an inlet is provided inside. A sludge-forming plate is slidably connected to the inlet via an adjusting component. A curing groove is also provided inside the curing box, and a pressure plate is slidably connected to the groove via an adjusting component. A pressure plate is detachably connected to the groove, and an outlet is provided at the bottom of the groove. This utility model uses the excavator body to deliver sludge from the construction site into the curing box through the inlet. The sludge-forming plate pushes the sludge into the curing groove. The pressure plate, sludge-forming plate, and pressure plate, in conjunction with the groove wall, squeeze the water out of the sludge through filter holes. The cured sludge is then discharged through the outlet for backfilling. Compared with traditional methods, this simplifies the process and saves time and labor.
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Description

Technical Field

[0001] This utility model relates to the field of soft soil dredging and backfilling construction technology, specifically to an excavation device for soft soil dredging and backfilling construction. Background Technology

[0002] Soft soil foundation dredging and backfilling refers to the process of removing silt from soft soil foundations using manual labor or machinery, and then using this silt to backfill the site or other designated locations. Dredging and backfilling projects are commonly used for the management of rivers, lakes, and other waterways to ensure the smooth flow and safety of the water.

[0003] In the past, when carrying out dredging and backfilling projects, it was necessary to use excavators to dig the silt to a designated location, then transport it to a silt solidification plant, and then return the solidified silt to the site. This process was time-consuming and labor-intensive.

[0004] Therefore, in order to address the above problems, an excavation device for soft soil foundation dredging and backfilling is proposed. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by developing an excavation device for dredging and backfilling soft soil foundations. This device can squeeze out the water from the silt at the construction site and discharge the solidified silt for backfilling.

[0006] To achieve the above objectives, this utility model employs the following technical solution:

[0007] An excavation device for soft soil dredging and backfilling includes a base plate, an excavator body rotatably connected to the base plate, a curing box fixedly connected to the base plate, a drainage outlet fixedly connected to the curing box, a silt inlet opening inside the curing box, a silt-fixing plate slidably connected to the silt inlet opening via an adjusting component, a curing groove inside the curing box, a silt-pressing plate slidably connected to the curing groove via an adjusting component, a pressure plate detachably connected to the curing groove, a plurality of filter holes opened on the pressure plate, the filter holes communicating with the drainage outlet; and a silt outlet opening at the bottom of the curing groove.

[0008] Furthermore, the bottom of the base plate has an opening located below the sludge outlet and its size matches that of the sludge outlet. Slide grooves are fixedly connected to both sides of the opening, and sliders are slidably connected within the slide grooves. A baffle is fixedly connected between the two sliders and is slidably connected to the bottom of the sludge outlet. An installation block is fixedly connected to the baffle and is fixedly connected to the movable end of the first hydraulic telescopic rod. The rod body of the first hydraulic telescopic rod is fixedly connected to the base plate by a fastener.

[0009] Furthermore, the adjustment assembly is fixedly connected to the base plate via a mounting base. The adjustment assembly includes a second hydraulic telescopic rod and two limiting components. The two limiting components are located on the left and right sides of the second hydraulic telescopic rod, respectively. Each limiting component includes a limiting rod and a limiting groove. The limiting rod is slidably connected in the limiting groove. The rod body of the second hydraulic telescopic rod and the limiting groove are fixedly connected to the base plate. The movable end of the second hydraulic telescopic rod and the limiting rod are fixedly connected to the silt-pressing plate or the silt-forming plate.

[0010] Furthermore, a cover plate is detachably connected to the curing box, and the cover plate and the inner wall of the curing box form a curing groove. A window is opened on one side of the curing groove. The size of the window is the same as the cross-sectional size of the silt plate. The contact surface between the silt plate and the silt is an inclined surface. The silt plate is slidably connected to the window of the curing groove.

[0011] Furthermore, the bottom surface of the sludge inlet is horizontal and higher than the bottom surface of the curing tank. Part of the bottom surface of the curing tank is inclined and the other part is horizontal. The horizontal surface is lower than the bottom surface of the sludge inlet, and the sludge outlet is located at the horizontal surface.

[0012] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages:

[0013] This invention utilizes an excavator to feed silt from the construction site into a solidification box through an inlet. A silt-forming plate then pushes the silt into a solidification tank. A pressure plate, a silt-forming plate, and a pressure plate, working in conjunction with the tank wall, squeeze the water out of the silt through filter holes. The solidified silt is then discharged through an outlet for backfilling. Compared to traditional methods, this invention simplifies the process and saves time and labor. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a simplified top view of the present invention.

[0017] Figure 3 This is a simplified diagram of the base plate viewed from below.

[0018] Figure 4 This is a schematic diagram of the curing box and its main connection structure.

[0019] Figure 5 A schematic diagram of the adjustment component structure.

[0020] Figure 6 This is a cross-sectional view of the drainage outlet and its connecting structure.

[0021] Figure 7 This is a cross-sectional view of the curing tank and its connecting structure.

[0022] In the diagram: 1. Base plate; 2. Excavator body; 3. Curing box; 4. Drain outlet; 5. Silt inlet; 6. Adjustment component; 7. Silt-forming plate; 8. Curing tank; 9. Silt-pressing plate; 10. Pressure plate; 11. Filter hole; 12. Silt outlet; 13. Slide groove; 14. Sliding block; 15. Baffle; 16. Mounting block; 17. First hydraulic telescopic rod; 18. Second hydraulic telescopic rod; 19. Limiting rod; 20. Limiting groove; 21. Cover plate; 22. Window. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-7 The excavation device shown includes a base plate 1, on which an excavator body 2 is rotatably connected. A curing box 3 is also fixedly connected to the base plate 1, and a drain outlet 4 is fixedly connected to the curing box 3. An inlet 5 is provided inside the curing box 3, and a sludge-forming plate 7 is slidably connected to the inlet 5 via an adjusting component 6. A curing groove 8 is also provided inside the curing box 3, and a pressure plate 9 is slidably connected to the curing groove 8 via the adjusting component 6. A pressure plate 10 is detachably connected to the curing groove 8. The dimensions of the pressure plate 9 and the pressure plate 10 are the same as the cross-sectional dimensions of the curing groove 8. Several filter holes 11 are provided on the pressure plate 10, and the filter holes 11 are connected to the drain outlet 4. The pressure plate 10 can be replaced at any time when the filter holes 11 become clogged. An outlet 12 is provided at the bottom of the curing groove 8, and the bottom of the outlet 12 is slightly lower than the lower surface of the curing box 3.

[0025] The bottom of the base plate 1 has an opening located below the sludge outlet 12 and its size matches that of the sludge outlet 12. Slide grooves 13 are fixedly connected to both sides of the opening, and sliders 14 are slidably connected within the slide grooves 13. A baffle 15 is fixedly connected between the two sliders 14 and is slidably connected to the bottom of the sludge outlet 12. An mounting block 16 is fixedly connected to the baffle 15 and is fixedly connected to the movable end of the first hydraulic telescopic rod 17. The rod body of the first hydraulic telescopic rod 17 is fixedly connected to the base plate 1 by a fastener.

[0026] The adjustment assembly 6 is fixedly connected to the base plate 1 via a mounting base. The adjustment assembly 6 includes a second hydraulic telescopic rod 18 and two limiting assemblies. The two limiting assemblies are located on the left and right sides of the second hydraulic telescopic rod 18, respectively. Each limiting assembly includes a limiting rod 19 and a limiting groove 20. The limiting rod 19 is slidably connected in the limiting groove 20. The rod body of the second hydraulic telescopic rod 18 and the limiting groove 20 are fixedly connected to the base plate 1. The movable end of the second hydraulic telescopic rod 18 and the limiting rod 19 are fixedly connected to the silt-pressing plate 9 or the silt-forming plate 7.

[0027] A cover plate 21 is detachably connected to the curing box 3. The cover plate 21 and the inner wall of the curing box 3 form a curing groove 8. The curing groove 8 has five closed surfaces, and a window 22 is opened on one side. The size of the window 22 is the same as the cross-sectional size of the silt plate 7. The contact surface between the silt plate 7 and the silt is an inclined surface that is wider at the top and narrower at the bottom. The silt plate 7 is slidably connected to the window 22 of the curing groove 8.

[0028] The bottom surface of the silt inlet 5 is horizontal and higher than the bottom surface of the curing tank 8. Part of the bottom surface of the curing tank 8 is inclined and the other part is horizontal. The horizontal surface is lower than the bottom surface of the silt inlet 5. The silt outlet 12 is located at the horizontal surface.

[0029] Working principle: The excavator body 2 delivers silt from the construction site into the solidification box 3 through the inlet 5. The adjusting component 6 controls the silt-forming plate 7 to push the silt into the solidification tank 8. This process can be repeated multiple times until the silt in the solidification tank 8 reaches a certain volume, causing the silt-forming plate 7 to stop at the window 22 of the solidification tank 8 for sealing. Then, the adjusting component 6 controls the pressing plate 9 to squeeze the silt. Through the cooperation of the pressing plate 9, the silt-forming plate 7, and the pressure plate 10 against the tank wall of the solidification tank 8, the water in the silt is squeezed out through the filter holes 11 and discharged through the drain outlet 4. The solidified silt is then discharged through the outlet 12 for backfilling. The dredging and backfilling work can be completed on-site with a single excavator, simplifying the process and saving time and labor compared to traditional methods.

[0030] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more unless otherwise explicitly specified.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An excavation device for dredging and backfilling soft soil foundations, characterized in that, The device includes a base plate (1), on which an excavator body (2) is rotatably connected. A curing box (3) is also fixedly connected to the base plate (1), and a drain outlet (4) is fixedly connected to the curing box (3). An inlet (5) is provided inside the curing box (3). A sludge-fixing plate (7) is slidably connected to the inlet (5) via an adjusting component (6). A curing tank (8) is also provided inside the curing box (3). A sludge-pressing plate (9) is slidably connected to the curing tank (8) via an adjusting component (6). A pressure plate (10) is also detachably connected to the curing tank (8). Several filter holes (11) are provided on the pressure plate (10), and the filter holes (11) are connected to the drain outlet (4). A sludge outlet (12) is provided at the bottom of the curing tank (8).

2. The excavation device for soft soil foundation dredging and backfilling according to claim 1, characterized in that: An opening is provided at the bottom of the base plate (1). The opening is located below the sludge outlet (12) and its size matches that of the sludge outlet (12). Slide grooves (13) are fixedly connected to both sides of the opening. Sliding blocks (14) are slidably connected in the slide grooves (13). A baffle (15) is fixedly connected between the two sliding blocks (14). The baffle (15) is slidably connected to the bottom of the sludge outlet (12). An mounting block (16) is fixedly connected to the baffle (15). The mounting block (16) is fixedly connected to the movable end of the first hydraulic telescopic rod (17). The rod body of the first hydraulic telescopic rod (17) is fixedly connected to the base plate (1) by a fastener.

3. The excavation device for soft soil foundation dredging and backfilling according to claim 2, characterized in that: The adjustment assembly (6) is fixedly connected to the base plate (1) via a mounting seat. The adjustment assembly (6) includes a second hydraulic telescopic rod (18) and two limiting assemblies. The two limiting assemblies are located on the left and right sides of the second hydraulic telescopic rod (18). The limiting assemblies include a limiting rod (19) and a limiting groove (20). The limiting rod (19) is slidably connected in the limiting groove (20). The rod body of the second hydraulic telescopic rod (18) and the limiting groove (20) are fixedly connected to the base plate (1). The movable end of the second hydraulic telescopic rod (18) and the limiting rod (19) are fixedly connected to the silt-pressing plate (9) or the silt-forming plate (7).

4. The excavation device for soft soil foundation dredging and backfilling construction according to claim 3, characterized in that: A cover plate (21) is detachably connected to the curing box (3). The cover plate (21) and the inner wall of the curing box (3) form a curing groove (8). A window (22) is opened on one side of the curing groove (8). The size of the window (22) is the same as the cross-sectional size of the silt plate (7). The contact surface between the silt plate (7) and the silt is an inclined surface. The silt plate (7) and the window (22) of the curing groove (8) are slidably connected.

5. The excavation device for soft soil foundation dredging and backfilling according to claim 4, characterized in that: The bottom surface of the sludge inlet (5) is horizontal and higher than the bottom surface of the curing tank (8). Part of the bottom surface of the curing tank (8) is inclined and the other part is horizontal. The horizontal surface is lower than the bottom surface of the sludge inlet (5). The sludge outlet (12) is located at the horizontal surface.