A concrete anti-seepage wall brushing device for troughing of grab bucket machines

Abstract

This utility model relates to the field of water conservancy construction technology, specifically a wall-brushing device for concrete anti-seepage walls used in grab bucket excavators. It includes a base plate, with two opposing base vertical plates fixed to the lower surface of the base plate. A first reinforcing plate is fixed between each base vertical plate and the base plate. Two outer wire mesh clamps are fixed to the upper surface of the base plate, and two inner wire mesh clamps are detachably installed between the two outer wire mesh clamps. The two outer wire mesh clamps and the two inner wire mesh clamps correspond one-to-one and are all semi-circular. Several wire brushes, evenly spaced along their arc-shaped edges, are clamped between each outer wire mesh clamp and its corresponding inner wire mesh clamp. Several reinforcing ribs are fixed between the tops of the two outer wire mesh clamps along their arc-shaped edges. This invention solves the problems of existing concrete anti-seepage wall joint treatment where wall brushing, slag removal, roughening, and groove milling require two separate sets of equipment for step-by-step operation, resulting in low construction efficiency, high construction costs, and time consumption.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy construction technology, specifically a concrete anti-seepage wall brushing device used for trenching by grab bucket machines. Background Technology

[0002] Concrete cutoff walls are key structures for controlling seepage in water conservancy projects. They are usually constructed in sections, requiring the underground continuous wall to be divided into multiple independent units, such as sequence I, sequence II, and sequence III sections, and then constructed at intervals. Therefore, the concrete of adjacent sections needs to be jointed. To ensure the seepage prevention performance of the concrete joint between adjacent sections, the concrete end faces of the poured sections need to be brushed, cleaned, roughened, and shaped. Currently, it is common practice to first use a pipe puller to mill grooves into the concrete end faces of the poured sections, and then use a wire brush to remove surface mud and laitance, and roughen the surface so that the concrete of adjacent sections can fill the grooves to form an interlocking water-stopping structure.

[0003] However, practice has shown that the existing treatment of joints between adjacent sections of concrete anti-seepage walls has the following problems: First, brushing, cleaning and roughening the wall and milling the grooves require two separate operations using wire brushes and pipe pulling machines, which is inefficient and requires repeated positioning when switching equipment. Second, the pipe pulling machine is a high-powered device, which requires not only three or more workers to work together, but also heavy-duty cranes to lift the pipes and move equipment, resulting in high costs and time consumption in terms of personnel, materials and machines.

[0004] Therefore, it is necessary to invent a concrete anti-seepage wall brushing device for troughing of grab bucket machines to solve the above problems. Utility Model Content

[0005] To address the problems of existing concrete anti-seepage wall joint treatment involving brushing, slag removal, roughening, and groove milling requiring separate equipment for each step, resulting in low construction efficiency, high construction costs, and time consumption, this invention provides a concrete anti-seepage wall brushing device for use with grab bucket machines in trenching.

[0006] This utility model is achieved using the following technical solution:

[0007] A concrete anti-seepage wall brushing device for troughing with a grab bucket machine includes a base plate. Two opposing base vertical plates are fixed on the lower surface of the base plate. A first reinforcing plate is fixed between each base vertical plate and the base plate. Two opposing outer wire clamps are fixed on the upper surface of the base plate. Two inner wire clamps are detachably installed between the two outer wire clamps. The two outer wire clamps and the two inner wire clamps correspond one-to-one and are all semi-circular. Several wire brushes are clamped between each outer wire clamp and its corresponding inner wire clamp along its arc edge at equal intervals. Several reinforcing ribs are uniformly fixed between the top ends of the two outer wire clamps along their arc edge.

[0008] Furthermore, each outer wire clamp and its corresponding inner wire clamp are provided with several mounting holes, and the two are connected and fixed by mounting bolts passing through the mounting holes.

[0009] Furthermore, each outer wire clamp and its corresponding inner wire clamp are provided with several wire brush grooves that correspond one-to-one with several wire brushes.

[0010] Furthermore, several lifting holes are provided on the base plate and on the outer side of the two outer steel wire clamps.

[0011] Furthermore, a second reinforcing rib is fixed between each outer steel wire clamp and the base plate.

[0012] Furthermore, both base plates have connection holes, and a connecting pin is inserted into both connection holes. The tail end of the connecting pin has a bolt hole, and a connecting bolt is inserted into the bolt hole.

[0013] This utility model features a reasonable and reliable structural design. Through a composite structure of a semi-circular steel wire brush array and a rigid clamping plate, it simultaneously completes the brush wall cleaning and roughening, as well as the groove forming, merging the traditional separate processes into a single operation. This significantly improves construction efficiency and effectively shortens the construction period. Furthermore, this device boasts the advantages of being small and lightweight. Its external connection design allows it to be directly mounted on a grab bucket machine, completely replacing the heavy-duty pipe pulling machine and its associated heavy-duty crane, effectively reducing costs. In summary, this device achieves integrated cleaning, roughening, and forming through structural innovation, overcoming the three major construction pain points of fragmented processes, low efficiency, and high costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is the structural explosion of the present invention. Figure 1 .

[0016] Figure 3 This is the structural explosion of the present invention. Figure 2 .

[0017] Figure 4 This is a schematic diagram of the steel wire brush groove in this utility model.

[0018] In the diagram: 1. Base plate; 2. Base vertical plate; 3. First reinforcing rib; 4. Outer wire clamp; 5. Inner wire clamp; 6. Wire brush; 7. Reinforcing rib; 8. Mounting hole; 9. Mounting bolt; 10. Wire brush groove; 11. Lifting hole; 12. Second reinforcing rib; 13. Connecting hole; 14. Connecting pin; 15. Bolt hole; 16. Connecting bolt. Detailed Implementation

[0019] A concrete seepage-proof wall brushing device for trenching with a grab bucket machine, as shown in the attached document. Figure 1 ~Appendix Figure 3 As shown, the system includes a base plate 1, with two opposing base vertical plates 2 fixed on the lower surface of the base plate 1. A first reinforcing plate 3 is fixed between each base vertical plate 2 and the base plate 1. Two opposing outer wire clamps 4 are fixed on the upper surface of the base plate 1. Two inner wire clamps 5 are detachably installed between the two outer wire clamps 4. The two outer wire clamps 4 and the two inner wire clamps 5 correspond one-to-one and are all semi-circular. Several wire brushes 6 are clamped between each outer wire clamp 4 and its corresponding inner wire clamp 5, and several reinforcing ribs 7 are evenly fixed between the top ends of the two outer wire clamps 4 along their arc edges.

[0020] In this utility model, the base plate 1, the base vertical plate 2, and the first reinforcing plate 3 form a supporting frame, serving as the basic load-bearing structure of the entire device. This frame connects to the grab bucket and withstands the impact and friction forces during concrete brushing and milling, enhancing overall strength and stability. The outer wire clamp 4, the inner wire clamp 5, and the wire brush 6 constitute the brushing assembly, enabling the brushing, cleaning, and roughening of the concrete end face of the poured trench section. This removes mud and laitance, roughens the surface, and improves the adhesion at the joints. Simultaneously, the semi-circular design precisely matches the semi-circular groove contour required by the anti-seepage wall, allowing for groove formation during cleaning and roughening, completing both processes simultaneously and effectively improving construction efficiency. The wire brush 6 is evenly spaced along the arc edge to ensure uniform brushing. The reinforcing ribs 7 enhance structural rigidity, preventing the outer wire clamp 4 from bending and deforming under stress, improving the overall rigidity and fatigue resistance of the brushing assembly, and ensuring no deformation during long-term use.

[0021] Each outer wire clamp 4 and its corresponding inner wire clamp 5 are provided with several mounting holes 8, and the two are connected and fixed by mounting bolts 9 passing through the mounting holes 8.

[0022] The combined design of mounting hole 8 and mounting bolt 9 enables the detachable connection of outer wire clamp 4 and inner wire clamp 5, facilitating the replacement of worn wire brush 6, and adapting to different thicknesses or lengths of wire brush 6, thus improving flexibility.

[0023] As attached Figure 3 As shown, each outer wire clamp 4 and its corresponding inner wire clamp 5 are provided with several wire brush grooves 10 that correspond one-to-one with several wire brushes 6.

[0024] The wire brush groove 10 is used to position and secure the wire brush 6, preventing it from shifting or falling off during operation and ensuring that the wire brush 6 works stably during the brushing process.

[0025] Several hoisting holes 11 are provided on the base plate 1 and on the outside of the two outer steel wire clamps 4.

[0026] The lifting hole 11 facilitates the handling, lifting, and installation of the device onto the grab bucket crane, reducing the difficulty of manual handling. In addition, the device has the advantages of being small and lightweight, and can be lifted using small lifting equipment.

[0027] Each outer steel wire clamp 4 is fixed with a second reinforcing rib 12 between it and the base plate 1.

[0028] The second reinforcing rib 12 is used to strengthen the connection between the outer steel wire clamp 4 and the base plate 1, prevent the structure from loosening or breaking, and enhance the vibration resistance of the overall device.

[0029] Both base vertical plates 2 have connection holes 13, and a connecting pin 14 is inserted into both connection holes 13. A bolt hole 15 is opened at the tail end of the connecting pin 14, and a connecting bolt 16 is inserted into the bolt hole 15.

[0030] The connecting hole 13, connecting pin 14, bolt hole 15, and connecting bolt 16 form a hanging structure, which allows the entire device to be quickly and securely installed on the outside of the hydraulic grab bucket machine, enabling it to be used immediately after hanging without complicated installation. It is adaptable to different models of grab bucket machines, improving construction flexibility and work efficiency.

[0031] In use, first hoist the device to the vicinity of the section to be constructed through the hoisting hole 11. Align the base vertical plate 2 with the reserved interface on the side wall of the grab bucket of the grab machine, insert the connecting pin 14 and screw in the connecting bolt 16 to prevent detachment. After confirming that the reinforcing rib 7 is not deformed and the wire brush 6 is not detached, operate the grab machine to align the device with the concrete end face of the section to be constructed. Adjust the height of the device so that the wire brush 6 just contacts the concrete end face. Then control the grab machine to move up and down reciprocatingly, while the device squeezes the concrete end face, so that the wire brush 6 continuously rubs against the concrete end face to remove mud. The process involves removing the slurry and roughening the surface, observing the wall-brushing effect, and adjusting the pressure or speed as needed until the outer steel wire clamp 4 and its corresponding inner steel wire clamp 5 compress and shape the concrete end face and the roughening degree of the concrete end face reaches the required level. Then, the grab bucket machine is stopped, and the device is removed from the grab bucket machine and placed in a safe area. This completes the use of the device. It overcomes the problems of existing concrete anti-seepage wall joint treatment where wall brushing, slag removal, roughening, and groove milling require two sets of equipment for step-by-step operation, resulting in low construction efficiency, high construction cost, and time consumption.

[0032] In practice, the worn wire brush 6 can be replaced by unscrewing the mounting bolt 9, and then the outer wire clamp 4 and its corresponding inner wire clamp 5 can be tightened again.

[0033] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element 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.

[0034] 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.

Claims

1. A concrete anti-seepage wall brushing device for trenching with a grab bucket machine, characterized in that: The base plate (1) is fixed with two opposing base vertical plates (2) on the lower surface of the base plate (1). A first reinforcing plate (3) is fixed between each base vertical plate (2) and the base plate (1). Two opposing outer wire clamps (4) are fixed on the upper surface of the base plate (1). Two inner wire clamps (5) are detachably installed between the two outer wire clamps (4). The two outer wire clamps (4) and the two inner wire clamps (5) correspond one-to-one and are all semi-circular. Several wire brushes (6) are clamped between each outer wire clamp (4) and its corresponding inner wire clamp (5) and are evenly distributed along its arc edge. Several reinforcing ribs (7) are evenly fixed between the tops of the two outer wire clamps (4) along their arc edge.

2. The concrete anti-seepage wall brushing device for troughing by a grab bucket machine according to claim 1, characterized in that: Each outer wire clamp (4) and its corresponding inner wire clamp (5) are provided with several mounting holes (8), and the two are connected and fixed by mounting bolts (9) passing through the mounting holes (8).

3. A concrete anti-seepage wall brushing device for trenching with a grab bucket machine according to claim 1, characterized in that: Each outer wire clamp (4) and its corresponding inner wire clamp (5) are provided with several wire brush grooves (10) that correspond one-to-one with several wire brushes (6).

4. A concrete anti-seepage wall brushing device for trenching with a grab bucket machine according to claim 1, characterized in that: Several hoisting holes (11) are provided on the base plate (1) and on the outside of the two outer steel wire clamps (4).

5. A concrete anti-seepage wall brushing device for trenching with a grab bucket machine according to claim 1, characterized in that: Each outer steel wire clamp (4) is fixed with a second reinforcing rib (12) between it and the base plate (1).

6. A concrete anti-seepage wall brushing device for trenching with a grab bucket machine according to claim 1, characterized in that: Both base vertical plates (2) are provided with connection holes (13), and a connecting pin (14) is inserted into both connection holes (13). A bolt hole (15) is provided at the end of the connecting pin (14), and a connecting bolt (16) is inserted into the bolt hole (15).

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