Rotary brush wall cleaner for cross steel plate joint of underground continuous wall

Abstract

This utility model relates to the field of diaphragm wall construction technology and discloses a rotary drilling wall brushing device with a cross-shaped steel plate joint for diaphragm walls. The device comprises a brushing tube, a top connector, a triangular tube, and multiple wire brushes. The top connector is welded to the brushing tube, and a connection interface is provided at the end of the top connector away from the brushing tube. Multiple wire brushes are provided on one side of the brushing tube. The triangular tube is welded to the end of the brushing tube away from the wire brushes. Multiple pin holes are provided on the top connector. Through the pin holes on the brushing tube, the brushing device can be quickly assembled and disassembled from the rotary drilling rig drill rod, allowing the brushing device to efficiently remove concrete blocks with the help of the rotary drilling rig, thus significantly reducing brushing time. Furthermore, the device is reusable and requires no additional equipment, saving on mechanical equipment investment costs. The device also has a simple structure, is easy to manufacture, and can be customized according to the actual trench width dimensions at the construction site.

Description

Technical Field

[0001] This utility model patent relates to the field of diaphragm wall construction technology, and more specifically, to a rotary drilling and brushing device for diaphragm wall cross-shaped steel plate joints. Background Technology

[0002] With the rapid advancement of urbanization in my country, the scale of urban infrastructure construction is expanding, and deep foundation pits are being designed extensively in building construction projects and urban rail transit projects. The diaphragm wall support technology for deep foundation pits is a mature technology with strong adaptability to geological conditions, and the support structure exhibits good stability and waterproofing. Therefore, it has been widely used in engineering design and construction.

[0003] The construction of diaphragm walls is carried out in unit sections. When adjacent unit sections are constructed sequentially, connection joints are formed. These joints can be achieved using flexible or rigid joints, with rigid joints being the most common method. Rigid joints typically use cross-shaped steel plates. After the reinforcing cage is lowered, the joint area of ​​the cross-shaped steel plate needs to be filled with bagged sand (or gravel, etc.) or a joint box needs to be lowered. Solidified material or surrounding concrete may remain on the cross-shaped steel plate. Furthermore, due to the presence of wall-protecting slurry within the section, a layer of mud will form on the surface of the cross-shaped steel plate at the connection joint during construction. In special cases, other solidified debris or surrounding concrete may adhere to the cross-shaped steel plate. To ensure good bonding between the later-poured concrete and the cross-shaped steel plate at the connection joint, prevent leakage, and increase the overall integrity of the wall, after the subsequent diaphragm wall sections are completed, the joint of the cross-shaped steel plate from the previous section needs to be brushed to remove all debris adhering to the surface of the cross-shaped steel plate. This ensures effective contact between the concrete of adjacent sections and enhances the overall integrity of the diaphragm wall.

[0004] Existing methods for brushing concrete in cross-shaped steel plate joints generally employ impact-type brushing, such as creating a wire brush on the side of an impact square drill bit or square hammer to brush away the concrete adhering to the I-beam channel; or using a crane to suspend the brush and repeatedly brush it up and down. However, when the wire brush encounters irregularly distributed concrete blocks, the suspended brush is prone to slipping along the layers; when encountering concrete with a certain strength, the brushing force is insufficient, resulting in poor brushing effect and difficulty in controlling verticality, leading to long brushing time, low efficiency, and high overall construction costs. Utility Model Content

[0005] The purpose of this utility model is to provide a rotary drilling brushing device for diaphragm walls with cross-shaped steel plate joints, which aims to solve the problems of long brushing time, low efficiency, and high overall construction cost in the existing technology.

[0006] This utility model is implemented as follows: a rotary drilling brushing device for diaphragm walls with cross-shaped steel plate joints includes a brushing tube, a top joint, a triangular tube, and multiple wire brushes. The top joint is welded to the brushing tube, and a connection interface is provided at the end of the top joint away from the brushing tube. Multiple wire brushes are provided on one side of the brushing tube. The triangular tube is welded to the end of the brushing tube away from the wire brushes. Multiple pin holes are provided on the top joint. Four bracket steel plates are welded at the welding and junction of the top joint and the brushing tube.

[0007] Preferably, the four bracket steel plates are distributed at intervals along the circumferential direction, and the bracket steel plates have hollowed-out sections.

[0008] Preferably, the brush wall tube, triangular tube and top connector are all made of wear-resistant steel plate with a thickness of 30mm.

[0009] Preferably, the wire brush is made of wire rope with a specification of 6×19+FC and an outer diameter of 25mm for each wire.

[0010] Preferably, the end of the wire brush is provided with a threaded bolt, and the exposed length of the wire rope is 300mm.

[0011] Preferably, a movable plate is inserted into the brush tube, and multiple wire brushes are mounted on the movable plate.

[0012] Preferably, the movable plate has multiple mating holes, and the threaded plugs on the multiple wire brushes are respectively welded into the multiple mating holes.

[0013] Preferably, both sides of the movable plate are provided with docking grooves, and the brush wall square tube is provided with two symmetrical docking protrusions that are adapted to the docking grooves.

[0014] Preferably, the top of the movable plate is provided with a docking insert, and the brush wall square tube is provided with a docking slot that matches the docking insert.

[0015] Preferably, both the docking slot and the docking insert are provided with connecting holes, and connecting bolts are inserted into the connecting holes. The movable plate is installed on the brush wall tube by means of the connecting bolts.

[0016] Compared with the prior art, the rotary drilling wall brushing device with cross steel plate joint for underground continuous wall provided by this utility model can be quickly assembled and disassembled with the rotary drilling machine drill rod through the pin hole on the brushing square tube. This allows the brushing device to efficiently remove concrete blocks with the help of the rotary drilling machine, and perform efficient wall brushing, which greatly reduces the brushing time. In addition, the device can be reused without the need for other equipment, saving the investment cost of mechanical equipment. At the same time, the device has a simple structure, is easy to manufacture, and can be made according to the actual trench width dimensions on the construction site. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the rotary drilling and brushing device for underground continuous wall cross steel plate joint provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the rotary drilling and brushing device for underground continuous wall cross steel plate joint provided by this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the rotary drilling and brushing device with cross-shaped steel plate joint for underground continuous wall provided by this utility model;

[0020] Figure 4 This is a schematic diagram showing the connection between the movable plate and the brushing tube of the rotary drilling brushing device with cross-shaped steel plate joint for underground continuous wall provided by this utility model.

[0021] Figure 5 This utility model provides a rotary drilling and wall brushing device with a cross-shaped steel plate joint for underground continuous wall. Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Wall brush tube; 2. Movable plate; 3. Triangular tube; 4. Threaded bolt; 5. Wire brush; 6. Butt hole; 7. Bracket steel plate; 8. Hollowed-out; 9. Connection interface; 10. Top connector; 11. Pin hole; 12. Butt protrusion; 13. Butt groove; 14. Connecting bolt; 15. Connecting hole; 16. Butt slot; 17. Butt insert. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] Reference Figure 1-5 The image shown is a preferred embodiment of the present invention.

[0028] The rotary drilling wall brushing device with cross-shaped steel plate joint for underground continuous wall includes a brushing tube 1, a top connector 10, a triangular tube 3, and multiple wire brushes 5. The top connector 10 is welded to the brushing tube 1. A connection interface 9 is provided at the end of the top connector 10 away from the brushing tube 1. Multiple wire brushes 5 are provided on one side of the brushing tube 1. The triangular tube 3 is welded to the end of the brushing tube 1 away from the wire brushes 5. Multiple pin holes 11 are provided on the top connector 10. Four bracket steel plates 7 are welded at the welding and junction of the top connector 10 and the brushing tube 1.

[0029] The pin hole 11 on the wall-brushing tube 1 allows for quick assembly and disassembly of the wall-brushing device and the rotary drilling rig rod, enabling the wall-brushing device to efficiently remove concrete blocks with the help of the rotary drilling rig and perform efficient wall brushing, greatly reducing the wall brushing time. Furthermore, the device is reusable and does not require the use of other equipment, saving on mechanical equipment investment costs. At the same time, the device has a simple structure, is easy to manufacture, and can be made according to the actual trench width dimensions at the construction site.

[0030] Specifically, in this embodiment, four corbel steel plates 7 are distributed at intervals along the circumference, and hollowed-out holes 8 are provided on the corbel steel plates 7 to ensure the structural strength between the brush wall square tube 1 and the top joint 10. By setting the hollowed-out holes 8, the weight can be reduced while controlling material costs.

[0031] Specifically, in this embodiment, the brush tube 1, the triangular tube 3, and the top connector 10 are all made of wear-resistant steel plate with a thickness of 30mm, which ensures the overall structural strength of the brush while guaranteeing its service life.

[0032] Specifically, in this embodiment, the wire brush 5 is made of wire rope with a specification of 6×19+FC and an outer diameter of 25mm for each wire, which ensures the stability of the wire brush 5 when cleaning concrete.

[0033] Specifically, in this embodiment, the end of the wire brush 5 is provided with a threaded bolt 4, and the exposed length of the wire rope is 300mm.

[0034] Specifically, in this embodiment, a movable plate 2 is inserted into the brush wall tube 1, and multiple wire brushes 5 are installed on the movable plate 2. Multiple docking holes 6 are opened on the movable plate 2, and the threaded bolts 4 on the multiple wire brushes 5 are respectively plugged into the multiple docking holes 6. Both sides of the movable plate 2 are provided with docking grooves 13, and two symmetrical docking protrusions 12 that are adapted to the docking grooves 13 are protruding on the brush wall tube 1.

[0035] Through the cooperation of structures such as movable plate 2, docking groove 13 and docking protrusion 12, it is easy to replace movable plate 2 with different combinations of wire brushes 5 for different working conditions, thereby improving the adaptability to working conditions.

[0036] Specifically, in this embodiment, the top of the movable plate 2 is provided with a docking insert 17, and the brush wall tube 1 is provided with a docking slot 16 that is compatible with the docking insert 17. Both the docking slot 16 and the docking insert 17 are provided with connecting holes 15, and connecting bolts 14 are inserted into the connecting holes 15. The movable plate 2 is installed on the brush wall tube 1 by connecting bolts 14.

[0037] The movable plate 2 and the brush tube 1 can be easily disassembled and assembled through the mating insert 17, mating slot 16 and connecting bolt 14.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary brush wall cleaner for a cross-plate joint of a diaphragm wall, characterized by, The device includes a wall brush consisting of a square brush tube, a top connector, a triangular tube, and multiple wire brushes. The top connector is welded to the square brush tube, and a connection interface is provided at the end of the top connector away from the square brush tube. Multiple wire brushes are provided on one side of the square brush tube. The triangular tube is welded to the end of the square brush tube away from the wire brushes. Multiple pin holes are provided on the top connector. Four bracket steel plates are welded to the welding and junction of the top connector and the square brush tube.

2. The underground continuous wall cross steel plate joint rotary excavator according to claim 1, wherein The four bracket steel plates are distributed at intervals along the circumference, and the bracket steel plates have hollowed-out sections.

3. The underground continuous wall cross steel plate joint rotary excavator according to claim 1, wherein The brush wall tube, triangular tube, and top connector are all made of wear-resistant steel plate with a thickness of 30mm.

4. The underground continuous wall cross steel plate joint rotary excavator according to claim 1, wherein The wire brush is made of wire rope with a specification of 6×19+FC and an outer diameter of 25mm for each wire.

5. The underground continuous wall cross steel plate joint rotary excavator according to claim 4, wherein The wire brush is provided with a threaded bolt at its end, and the exposed length of the wire rope is 300mm.

6. The rotary drilling and wall-brushing tool with a cross-shaped steel plate joint for diaphragm walls as described in claim 1, characterized in that, A movable plate is inserted into the brush tube, and multiple wire brushes are mounted on the movable plate.

7. The underground continuous wall cross steel plate joint rotary excavator according to claim 6, wherein The movable plate has multiple docking holes, and the threaded plugs on multiple wire brushes are respectively welded into the multiple docking holes.

8. The underground continuous wall cross steel plate joint rotary excavator according to claim 6, wherein Both sides of the movable plate are provided with docking grooves, and the brush wall tube is provided with two symmetrical docking protrusions that are adapted to the docking grooves.

9. The underground continuous wall cross steel plate joint rotary excavator according to claim 6, wherein The top of the movable plate is provided with a docking insert, and the brush wall square tube is provided with a docking slot that matches the docking insert.

10. The underground continuous wall cross steel plate joint rotary excavator according to claim 9, wherein Both the docking slot and the docking insert have connection holes, and connection bolts are inserted into the connection holes. The movable plate is installed on the brush wall tube by the connection bolts.

Images