Wall brushing device special for underground diaphragm wall cross joint

Abstract

The utility model belongs to the technical field of wall brushing devices, and particularly relates to a wall brushing device special for an underground diaphragm wall cross joint, which comprises a hydraulic grab bucket and a wall brushing steel plate, a fixed hinge piece is arranged at the top of the hydraulic grab bucket, bucket teeth are uniformly arranged at the bottom of the hydraulic grab bucket, connecting lug plates are symmetrically mounted on two sides of the hydraulic grab bucket through bolts, and the wall brushing steel plate is fixedly connected with the hydraulic grab bucket. The connecting lug plates exceed the surface of the back of the hydraulic grab bucket, a rail rod is arranged between the two connecting lug plates and transversely arranged on the outer side of the hydraulic grab bucket, two adjusting boxes transversely slide on the back of the hydraulic grab bucket, the rail rod penetrates through the adjusting boxes, and the device can be fixed to the outer side of the grab bucket through bolts and the connecting lug plates. When the grab bucket is used for digging earth, the grab bucket can be detached, the inner wall of a pit is prevented from being scratched, the distance and the extending size between the two wall brushing steel plates can be adjusted according to the actual use condition after installation, and the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wall brushes, and in particular relates to a special wall brush for a cross joint of an underground continuous wall. Background Art

[0002] The underground continuous wall is a very popular form of enclosure structure, with good water-stopping effect and strong adaptability to the stratum. There are various joint forms, among which the cross steel plate joint is one of them. During the trenching process of the underground continuous wall, the mud residue and the surrounding concrete at the cross steel plate position are difficult to clean. The traditional wall brush can clean the mud residue in a large area, but it is difficult to clean the mud residue at the corners of the cross steel plate. Long-term cleaning will cause the waiting time to be too long, resulting in too thick sediment in the trench section of the underground continuous wall, and in severe cases, it will cause the hole to collapse.

[0003] The prior art discloses a detachable wall brushing device for an underground continuous wall with a cross steel plate joint (patent announcement number: CN 217629913U). A wall brushing steel plate is arranged on the outside of a hydraulic grab bucket to clean the cross steel plate when the grab head moves downward. However, the connecting seat is welded to the surface of the grab bucket, which results in that the distance between the wall brushing steel plates cannot be adjusted and cannot adapt to the cleaning work of cross steel plates of different sizes. At the same time, the fixed connecting seat cannot be disassembled, and the inner wall of the pit may be scratched when the grab bucket is digging, resulting in an uneven inner wall, which affects the subsequent installation. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a special wall brush device for the cross joints of underground continuous walls, which can be realized by installing an adjustable wall brushing steel plate on the basis of the existing hydraulic grab to adapt to different cross steel plate cleaning tasks, and the distance between the outer wall brushing steel plate and the adjustment box can also be adjusted to improve the practicability of the equipment.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wall brush device specially used for a cross joint of an underground continuous wall comprises a hydraulic grab and a wall brushing steel plate, wherein a fixed hinge is arranged on the top of the hydraulic grab, bucket teeth are evenly arranged on the bottom of the hydraulic grab, connecting ear plates are symmetrically installed on both sides of the hydraulic grab by bolts, the connecting ear plates extend beyond the back surface of the hydraulic grab, a track rod is arranged between the two connecting ear plates, the track rod is transversely arranged on the outside of the hydraulic grab, two adjustment boxes are arranged on the back of the hydraulic grab for transverse sliding, the track rod passes through the adjustment box, internal threaded holes are symmetrically opened on the outer surface of the adjustment box away from the hydraulic grab, the wall brushing steel plate is arranged on the side of the adjustment box away from the hydraulic grab, the bottom of the wall brushing steel plate extends beyond the adjustment box, a bevel cutting edge is arranged on the bottom of the wall brushing steel plate, distance adjustment bolts are symmetrically arranged on the surface of the wall brushing steel plate, and the ends of a plurality of the distance adjustment bolts are all screwed into the internal threaded holes on the surface of the adjustment box.

[0007] Furthermore, a surface of one side of the track rod facing away from the hydraulic grab bucket is evenly provided with limiting grooves along the axis, and a mounting cavity is provided inside the adjustment box.

[0008] Furthermore, a rotating shaft is installed inside the installation cavity through a bearing, the rotating shaft passes through a surface of one side of the adjustment box, a knob is provided at the end of the rotating shaft, and the knob is placed outside the adjustment box.

[0009] Furthermore, a movable plate is arranged on the lower surface of the rotating shaft, and the movable plate is placed inside the installation cavity. Limiting protrusions are evenly arranged below one side of the movable plate close to the hydraulic grab, and the limiting protrusions are adapted to the internal dimensions of the limiting groove.

[0010] Furthermore, a tension spring is connected to a surface of one side of the movable plate close to the hydraulic grab, and an end of the tension spring facing away from the movable plate is connected to an inner wall of the installation cavity.

[0011] Furthermore, a steel mesh is laid on the outer surface of the brushed steel plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the device can be fixed to the outside of the grab bucket by bolts and connecting ear plates, and can be disassembled when the grab bucket is digging to prevent scratches on the inner wall of the pit; after installation, the distance and extension size between the two wall-brushing steel plates can be adjusted according to actual usage conditions to improve the practicability of the equipment; the bevel cutting blade at the bottom can effectively remove the soil adhering to the surface of the cross steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the installation three-dimensional structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the longitudinal sectional structure of the adjustment box of the utility model.

[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0016] 1. Hydraulic grab bucket; 2. Fixed hinge; 3. Bucket teeth; 4. Connecting ear plate; 5. Track rod; 6. Limiting groove; 7. Adjustment box; 8. Brushing steel plate; 9. Bevel cutting blade; 10. Distance adjustment bolt; 11. Installation cavity; 12. Rotating shaft; 13. Movable plate; 14. Limiting bump; 15. Tension spring; 16. Knob. DETAILED DESCRIPTION

[0017] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0018] like Figure 1 and Figure 2 As shown, a special wall brush for underground continuous wall cross joints includes a hydraulic grab 1 and a wall brush steel plate 8. A fixed hinge 2 is arranged on the top of the hydraulic grab 1, and bucket teeth 3 are evenly arranged on the bottom of the hydraulic grab 1. Connecting ear plates 4 are symmetrically installed on both sides of the hydraulic grab 1 through bolts, which can be installed and disassembled according to usage conditions. The connecting ear plates 4 extend beyond the back surface of the hydraulic grab 1. A track rod 5 is arranged between the two connecting ear plates 4. The track rod 5 is laterally placed on the outside of the hydraulic grab 1. There are two adjustment boxes 7 for transverse sliding on the back of the hydraulic grab 1. The distance between the two adjustment boxes 7 is moved according to usage conditions to adapt to different working environments. The track rod 5 runs through the adjustment box 7, and the adjustment box 7 is away from the hydraulic grab 1. Internal threaded holes are symmetrically provided on the outer surface, and the wall brushing steel plate 8 is placed on the side of the adjustment box 7 away from the hydraulic grab 1. The bottom of the wall brushing steel plate 8 exceeds the adjustment box 7. A beveled blade 9 is provided at the bottom of the wall brushing steel plate 8, and the soil on the surface of the cross steel plate can be scraped off by the beveled blade 9. Distance adjustment bolts 10 are symmetrically provided on the surface of the wall brushing steel plate 8. The end of the distance adjustment bolt 10 is provided with a hexagonal head flush with the outer surface of the wall brushing steel plate 8. The distance adjustment bolt 10 and the wall brushing steel plate 8 can rotate but cannot move axially. The ends of multiple distance adjustment bolts 10 are screwed into the internal threaded holes on the surface of the adjustment box 7. Screwing the distance adjustment bolts 10 can control the distance between the wall brushing steel plate 8 and the adjustment box 7.

[0019] like Figure 2 As shown, the surface of the side of the track rod 5 away from the hydraulic grab 1 is evenly provided with limiting grooves 6 along the axis, and an installation cavity 11 is provided inside the adjustment box 7. A rotating shaft 12 is installed inside the installation cavity 11 through a bearing. The rotating shaft 12 passes through the surface of one side of the adjustment box 7. A knob 16 is provided at the end of the rotating shaft 12, and the knob 16 is placed on the outside of the adjustment box 7 for easy control from the outside.

[0020] like Figure 2 As shown, a movable plate 13 is provided on the lower surface of the rotating shaft 12, and the movable plate 13 is placed inside the installation cavity 11. Limiting protrusions 14 are evenly provided below the side of the movable plate 13 close to the hydraulic grab 1. The limiting protrusions 14 are adapted to the internal dimensions of the limiting groove 6. A tension spring 15 is connected to the surface of the side of the movable plate 13 close to the hydraulic grab 1. The end of the tension spring 15 facing away from the movable plate 13 is connected to the inner wall of the installation cavity 11. The tension of the tension spring 15 is used to make the movable plate 13 in a vertical state when not subject to external force, so that multiple limiting protrusions 14 on the surface cooperate with the limiting groove 6 to fix the adjustment box 7.

[0021] like Figure 1 As shown, the outer surface of the wall-brushing steel plate 8 is paved with a steel mesh to improve the cleaning effect.

[0022] The working principle of the utility model is as follows: when it is necessary to brush the wall, the device can be installed on the outer surface of the hydraulic grab 1 by the cooperation of the bolts and the connecting ear plate 4, so that the track rod 5 is in a horizontal state. At the same time, due to the pulling of the tension spring 15, the movable plate 13 is in a vertical state, so that the limiting protrusion 14 and the limiting groove 6 cooperate with each other to achieve limiting. The rotating knob 16 can drive the rotating shaft 12 to rotate, and then the movable plate 13 rotates counterclockwise, so that the limiting protrusion 14 is disengaged from the cooperation with the limiting groove 6, and then the relative positions of the two adjustment boxes 7 can be adjusted to adapt to different working environments. The rotation of the knob 16 is loosened, and then fixation can be achieved. The rotating distance adjustment bolt 10 can adjust the position of the wall brushing steel plate 8 and the adjustment box 7. When the hydraulic grab 1 moves downward, the surface of the cross joint can be cleaned by the bevel cutting blade 9.

[0023] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A special wall brushing device for underground continuous wall cross joints, comprising a hydraulic grab (1) and a wall brushing steel plate (8), characterized in that: The top of the hydraulic grab (1) is provided with a fixed hinge (2), the bottom of the hydraulic grab (1) is evenly provided with bucket teeth (3), the two sides of the hydraulic grab (1) are symmetrically provided with connecting ear plates (4) by bolts, the connecting ear plates (4) are beyond the back surface of the hydraulic grab (1), a track rod (5) is provided between the two connecting ear plates (4), the track rod (5) is transversely arranged on the outside of the hydraulic grab (1), the back of the hydraulic grab (1) slides transversely with two adjustment boxes (7), the track rod (5) The adjusting box (7) is penetrated, and the outer surface of the adjusting box (7) facing away from the hydraulic grab (1) is symmetrically provided with internal threaded holes. The brush wall steel plate (8) is placed on the side of the adjusting box (7) facing away from the hydraulic grab (1), and the bottom of the brush wall steel plate (8) exceeds the adjusting box (7). The bottom of the brush wall steel plate (8) is provided with a bevel cutting edge (9). The surface of the brush wall steel plate (8) is symmetrically provided with distance adjustment bolts (10), and the ends of a plurality of the distance adjustment bolts (10) are all screwed into the internal threaded holes on the surface of the adjusting box (7).

2. The special wall brush for underground continuous wall cross joint according to claim 1, characterized in that: The surface of the track rod (5) on one side facing away from the hydraulic grab (1) is evenly provided with limiting grooves (6) along the axis, and the adjustment box (7) is provided with an installation cavity (11) inside.

3. The special wall brush for underground continuous wall cross joint according to claim 2, characterized in that: A rotating shaft (12) is installed inside the installation cavity (11) via a bearing. The rotating shaft (12) passes through a surface of one side of the adjustment box (7). A knob (16) is provided at the end of the rotating shaft (12). The knob (16) is placed outside the adjustment box (7).

4. The special wall brush for underground continuous wall cross joint according to claim 3, characterized in that: A movable plate (13) is arranged on the lower surface of the rotating shaft (12), and the movable plate (13) is placed inside the mounting cavity (11). Limiting protrusions (14) are evenly arranged below one side of the movable plate (13) close to the hydraulic grab (1), and the limiting protrusions (14) are adapted to the internal dimensions of the limiting groove (6).

5. The special wall brush for underground continuous wall cross joint according to claim 4, characterized in that: A tension spring (15) is connected to a surface of one side of the movable plate (13) close to the hydraulic grab (1), and an end of the tension spring (15) facing away from the movable plate (13) is connected to the inner wall of the installation cavity (11).

6. The special wall brush for underground continuous wall cross joint according to claim 1, characterized in that: The outer surface of the brushed steel plate (8) is paved with a steel mesh.

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