Power grid civil construction pit digging and bottoming device and integrated construction equipment

Abstract

The application provides a pit digging bottom device for power grid civil construction and integrated construction equipment, and belongs to the technical field of power grid civil construction equipment, which comprises a rotary excavator, a chassis, a hoist, a communication unit and a control panel, the rotary excavator is provided with a rotary digging end for rotating drilling and digging earthwork towards the inside of the soil body, the chassis is arranged in the bottom of the dug pit for supporting and fixing the bottom end of the to-be-installed line pole; the hoist is connected to the rotary excavator for hoisting the chassis from the ground and placing the chassis in the pit, the communication unit is connected to the rotary excavator and electrically connected with the rotary excavator and the hoist, the control panel is wirelessly and remotely communicated with the communication unit, and the control panel is suitable for receiving the operation signals of the rotary digging end and the hoist. The pit digging bottom device for power grid civil construction and the integrated construction equipment have the technical effects of improving the pit digging construction efficiency, reducing the amount of excavated earthwork, being high in practicability, safe and reliable in construction, reducing the engineering cost and improving the quality and efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of power grid civil construction equipment, and more specifically, it relates to a pit-digging and bottom-laying device and integrated construction equipment for power grid civil construction. Background Technology

[0002] Current power grid and distribution network projects are extremely demanding. Traditionally, the excavation of trenches for power grid civil construction involves two methods: excavator excavation and manual excavation. Excavator excavation is limited by terrain and involves significant underground compensation costs. Furthermore, it requires the removal of large amounts of earth, resulting in poor shaping and heavy subsequent compaction work. Manual excavation requires a large workforce, has poor overall construction efficiency, and poses safety hazards. The excavated trenches are used to install and fix power poles used in power grid construction. Power poles are used to erect power transmission lines. The bottom of the pole is fixed in the trench, and the trench is manually filled, placing the lower part of the pole inside the soil. This achieves the fixation of the pole. Finally, the filled soil is compacted using tamping equipment.

[0003] Therefore, in the existing power grid civil construction, for the excavation of pits, it is necessary to study a construction machinery and equipment that can reduce earthwork excavation, improve excavation quality and efficiency, be highly applicable and safe and reliable, and achieve the effect of reducing project costs and eliminating safety hazards. Summary of the Invention

[0004] The purpose of this invention is to provide a pit excavation and bottom-laying device and integrated construction equipment for power grid civil engineering construction, aiming to solve the technical problems of low efficiency, poor excavation quality, large volume of excavated earth, and safety hazards of manual operation in power grid civil engineering construction.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a device for excavating and lowering pits for power grid civil construction, comprising: A rotary drilling rig has a rotary drilling end for rotating and excavating soil into the soil, the rotation speed of the rotary drilling end and the depth into the soil being controlled by a first controller of the rotary drilling rig. The chassis is placed at the bottom of the excavated pit to support and fix the bottom of the pole to be installed; A hoisting machine, connected to the rotary drilling rig, is used to lift the chassis from the ground and place the chassis inside the pit; the hoisting machine has a second controller suitable for controlling the hoisting operation. A communication unit, connected to the rotary drilling rig and electrically connected to the first controller and the second controller, the communication unit having a wireless communication module; and The control panel is wirelessly remotely connected to the wireless communication module of the communication unit, and the control panel has a control module suitable for receiving operating signals from the rotary drilling end and the hoist.

[0006] As another embodiment of this application, the excavation and bottom-laying device for power grid civil construction also includes a tamping component connected to the rotary drilling end of the rotary drilling machine. The tamping component is used to compact the backfilled soil and the bottom of the pit, so that the bottom of the pit forms a planar shape.

[0007] As another embodiment of this application, the rotary drilling end has a cylindrical structure and a digging tooth at the bottom end. Multiple first cutting teeth are provided on the outer wall of the cylindrical structure of the rotary drilling end in a spiral arrangement along its axial direction. The first cutting teeth are used to cut the inner wall of the pit during the excavation process.

[0008] In another embodiment of this application, the structural component on the rotary drilling rig used to connect the rotary drilling end is defined as a connecting part. An extension cylinder is connected to the upper end of the rotary drilling end. The extension cylinder is detachably connected to the connecting part. The lower end of the extension cylinder is used to connect the rotary drilling end. The extension cylinder is used to extend the rotary drilling length of the rotary drilling end. The outer diameter of the extension cylinder is less than or equal to the outer diameter of the rotary drilling end.

[0009] In another embodiment of this application, the outer wall of the extension cylinder is provided with a plurality of second cutting teeth arranged in a spiral along its axial direction. The second cutting teeth are used to cut the inner wall of the pit during the excavation process, and the spiral direction formed by the plurality of second cutting teeth is the same as the spiral direction formed by the plurality of first cutting teeth.

[0010] In another embodiment of this application, the lower end of the rotary drilling rig is connected to a variable diameter rotary drilling section, which is used to rotary drill into the soil and form a pit, and the diameter of the pit excavated by the variable diameter rotary drilling section can be adjusted.

[0011] In another embodiment of this application, the variable diameter rotary drilling unit includes: The horizontal rail has an upper end for inserting into the rotary drilling end and detachably connecting to the rotary drilling end, and a lower end with a slide rail arranged along its length. The middle of the horizontal rail is the center of the rotary drilling pit. Multiple auger drills are arranged vertically side-by-side, with their upper ends serving as drive ends and slidably connected to the slide rails. Each auger drill has the freedom to slide along the slide rails. These auger drills are used for rotary excavation of soil and are equidistant from the center of the pit. The auger drills are combined on a horizontal circumference to form an excavation assembly for pit excavation. The excavation assembly is coaxially arranged with the rotary excavation end. The diameter of the excavated pit is changed by adjusting the position of the auger drills on the slide rails. Multiple limiting components pass through the horizontal rail and are fastened to the upper end of the auger drill. The limiting components are used to limit the position of the auger drill on the horizontal rail or the slide.

[0012] In another embodiment of this application, the rotary drilling end is hollow, and the tamping assembly includes: The fitting part is used to be fitted inside the rotary drilling end and is detachably connected to the rotary drilling end; An elastic connector, attached to the lower end of the sleeve, has the freedom to extend and retract vertically; The compaction section, located directly below the fitted section, has its upper end fixedly connected to the lower end of the elastic connector, and is used to compact the soil; and A fixed connector is provided on the outer wall of the sleeve part. One end of the fixed connector is engaged with the sleeve part and the other end is hinged to the compaction part. Rotating the fixed connector away from the sleeve part is used to release the connection with the sleeve part; rotating the fixed connector closer to the sleeve part is used to fix the connection with the sleeve part, and after the connection, the elastic connector loses its elasticity.

[0013] As another embodiment of this application, the lower end of the compaction part is detachably connected to a plurality of compaction components, the lower end of each compaction component is connected to a wear-resistant block, the wear-resistant block is used to compact the soil, the plurality of compaction components are arranged in a circle around the circumference of the compaction part, and the outer diameter of the circle is adjustable, the plurality of compaction components are connected to each other by fasteners, and the upper end is fastened to the lower end of the compaction part.

[0014] The beneficial effects of the excavation and bottom-laying device for power grid civil construction provided by the present invention are as follows: Compared with the prior art, the excavation and bottom-laying device for power grid civil construction of the present invention includes a rotary drilling rig, a chassis, a hoisting machine, a communication unit, and a control panel. The rotary drilling rig has a rotary drilling end for rotating and drilling into the soil and excavating the earth. The rotation speed and the depth of the rotary drilling end into the soil are both controlled by a first controller of the rotary drilling rig. The chassis is placed at the bottom of the excavated pit to support and fix the bottom end of the pole to be installed. The hoisting machine is connected to the rotary drilling rig and is used to lift the chassis from the ground and place the chassis inside the pit. The hoisting machine has features suitable for controlling the hoisting. The second controller is in operation; the communication unit is connected to the rotary drilling rig and electrically connected to the first and second controllers. The communication unit has a wireless communication module; the control panel is wirelessly remotely connected to the wireless communication module of the communication unit. The control panel has a control module suitable for receiving operating signals from the rotary drilling end and the hoist. This solves the technical problems of low efficiency, poor excavation quality, large excavation volume, and safety hazards of manual operation in the excavation of pits for power grid civil engineering construction. It has the technical effects of improving the efficiency of pit excavation construction, reducing the excavation volume, strong practicality, reliable construction safety, reducing project costs, and improving quality and efficiency.

[0015] The present invention also provides an integrated excavation and bottom-laying construction equipment for power grid civil construction, which includes a transport vehicle for transporting poles, a crane for hoisting poles into the pit, and an excavation and bottom-laying device for power grid civil construction.

[0016] The beneficial effects of the integrated excavation and bottom-laying construction equipment for power grid civil construction provided by this invention are as follows: Compared with the prior art, the integrated excavation and bottom-laying construction equipment for power grid civil construction includes a transport vehicle, a crane, and an excavation and bottom-laying device for power grid civil construction. The cooperation between these multiple devices forms an integrated construction equipment, which can complete the excavation of pits for power grid construction and the construction of poles. It can automatically compact the soil and has the technical effects of improving the efficiency of pit excavation, reducing the amount of excavated earthwork, being highly practical, ensuring safe and reliable construction, reducing project costs, and improving quality and efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the excavation and bottom-laying device for power grid civil construction provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the chassis of the excavation and bottom-laying device for power grid civil construction provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the main structure of the rotary drilling end of the excavation device for digging pits in power grid civil construction provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the variable-diameter rotary drilling section of the excavation device for power grid civil construction provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the tamping component structure of the pit-digging and bottom-laying device for power grid civil construction provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of another structure of the tamping component of the pit-digging and bottom-laying device for power grid civil construction provided in an embodiment of the present invention; Figure 7 for Figure 6 A schematic diagram of a rammed component structure.

[0019] In the diagram: 1. Rotary drilling rig; 11. Rotary drilling end; 12. Digging tooth; 13. First cutting tooth; 2. Chassis; 21. Groove; 3. Hoist; 4. Communication unit; 5. Control panel; 6. Ramming assembly; 61. Set part; 62. Elastic connector; 63. Compactor; 64. Fixed connector; 65. Magnet; 7. Extension tube; 71. Countersunk bolt; 72. Second cutting tooth; 8. Variable diameter rotary drilling part; 81. Cross rail; 82. Spiral drilling rig; 83. Slide rail; 84. Limiting component; 9. Compactor; 10. Wear-resistant block. Detailed Implementation

[0020] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention 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 invention and are not intended to limit the present invention.

[0021] Please refer to the following: Figures 1 to 7 The present invention describes the excavation and bottom-laying device and integrated construction equipment for power grid civil engineering construction. The excavation and bottom-laying device for power grid civil engineering construction includes a rotary drilling rig 1, a chassis 2, a hoisting machine 3, a communication unit 4, and a control panel 5. The rotary drilling rig 1 has a rotary drilling end 11 for rotating and drilling into the soil and excavating earth. The rotation speed and depth of the rotary drilling end 11 into the soil are controlled by a first controller of the rotary drilling rig 1. The chassis 2 is placed at the bottom of the excavated pit to support and fix the bottom end of the pole to be installed. The hoisting machine 3 is connected to the rotary drilling rig 1 and is used to lift the chassis 2 from the ground and place it inside the pit. The hoisting machine 3 has a second controller suitable for controlling the hoisting operation. The communication unit 4 is connected to the rotary drilling rig 1 and electrically connected to the first and second controllers. The communication unit 4 has a wireless communication module. The control panel 5 is wirelessly remotely connected to the wireless communication module of the communication unit 4. The control panel 5 has a control module suitable for receiving operating signals from the rotary drilling end 11 and the hoisting machine 3.

[0022] The trench excavation and bottom-laying device for power grid civil construction provided by this invention, compared with the prior art, uses a rotary drilling rig 1 to excavate the soil, and a hoisting machine 3 to lift the chassis 2 into the trench. The rotary drilling end 11 and the hoisting machine are controlled by the control panel 5, which solves the technical problems of low efficiency, poor excavation quality, large amount of excavated soil, and safety hazards of manual operation in power grid civil construction trench excavation. It has the technical effects of improving trench excavation efficiency, reducing the amount of excavated soil, strong practicality, reliable construction safety, reducing project costs, and improving quality and efficiency.

[0023] The control panel 5 used in this invention operates on a principle similar to a remote control, enabling remote reception of the running trajectory of the rotary drilling rig 1's rotary drilling end 11 and the hoisting trajectory of the hoisting machine 3. In other words, the control panel 5 allows the user to determine whether the rotary drilling rig 1 or the hoisting machine 3 is in operation. Specifically, the communication unit 4 is an electronic communication device used in the prior art, enabling wireless communication with external communication devices and allowing for remote signal reception and transmission. Both the rotary drilling rig 1 and the hoisting machine 3 utilize existing technology, integrating the two devices into one unit to achieve "integrated" operation and construction, thus improving construction efficiency. The hoisting machine 3 is an existing hoisting machine or crane; connecting it to the rotary drilling rig 1 allows one device to perform two functions.

[0024] Specifically, the base 2 is a disc-shaped component laid at the bottom of the pit for installing and positioning the pole. Its upper end is used to place the pole, making the pole upright and confining it within the pit. The base 2 is disc-shaped and has a groove 21 formed in the middle of its upper end, suitable for placing the bottom end of the pole. The diameter of the groove 21 is larger than the outer diameter of the bottom end of the pole.

[0025] As a specific embodiment of the excavation and bottom-laying device for power grid civil construction provided by the present invention, please refer to Figures 1 to 7 The trenching device for power grid civil construction also includes a tamping assembly 6 connected to the rotary drilling end 11 of the rotary drilling rig 1. The tamping assembly 6 is used to compact the backfilled soil and the bottom of the trench, making the bottom of the trench flat. After the pole is backfilled, the tamping assembly 6 can be used to compact the soil around the pole, or after the trench is excavated, the tamping assembly 6 can be used to compact the soil at the bottom of the trench, which facilitates the installation of the chassis 2 and the fixing of the pole. The tamping assembly 6 can compact the soil in various locations, resulting in better construction quality and a more stable soil structure.

[0026] Specifically, the tamping assembly 6 is connected to the rotary drilling end 11. By controlling the up and down movement of the rotary drilling end 11 of the rotary drilling machine 1, the up and down movement of the tamping assembly 6 can be controlled, thereby achieving the compaction operation of the soil. During the compaction process, the rotary drilling end 11 does not rotate, but only moves up and down, which is the tamping action.

[0027] As a specific embodiment of the excavation and bottom-laying device for power grid civil construction provided by the present invention, please refer to Figures 1 to 7The rotary drilling end 11 has a cylindrical structure with digging teeth 12 at the bottom. Multiple first cutting teeth 13 are spirally arranged along its axial direction on the outer wall of the cylindrical structure of the rotary drilling end 11. The first cutting teeth 13 are used to cut the inner wall of the pit during excavation. The digging teeth 12 are cutting components on the rotary drilling end 11 itself used to cut the rotary-dug soil. During the rotary drilling cutting process of the rotary drilling end 11, multiple first cutting teeth 13 are provided to ensure that the soil on the pit wall can also be cut, or to enlarge the diameter of the pit. Different heights of the first cutting teeth 13 can be selected to enlarge the rotary drilling diameter of the pit. The first cutting teeth 13 are PDC cutting teeth.

[0028] As a specific embodiment of the excavation and bottom-laying device for power grid civil construction provided by the present invention, please refer to Figures 1 to 7 The structural component on the rotary drilling rig 1 used to connect the rotary drilling end 11 is defined as the connecting part ( Figure 3 (The upper part is indicated by the dotted line). An extension cylinder 7 is connected to the upper end of the rotary drilling end 11. The extension cylinder 7 is detachably connected to the connecting part. The lower end of the extension cylinder 7 is used to connect to the rotary drilling end 11, and the extension cylinder 7 is used to extend the rotary drilling length of the rotary drilling end 11. The outer diameter of the extension cylinder 7 is less than or equal to the outer diameter of the rotary drilling end 11. The connecting part is a component on the rotary drilling machine 1 used to connect the rotary drilling end 11, and the rotary drilling end 11 can be detached from the connecting part. When digging a deep pit, the extension cylinder 7 can be used to extend the height of the rotary drilling end 11, so that deeper pits can be excavated. This allows for one-time excavation of the pit, eliminating the need for repeated excavation using the rotary drilling end 11.

[0029] Specifically, the height of the extension tube 7 can be reasonably selected according to actual needs, and its height is not limited in this invention. The bottom end of the connecting part is inserted into the upper part of the extension tube 7. The extension tube 7 is provided with multiple countersunk screw holes, which are fitted with multiple countersunk bolts 71. By screwing the countersunk bolts 71, they can be screwed or abutted with the connecting part, thus achieving a tight connection between the extension tube 7 and the connecting part.

[0030] The lower end of the extension cylinder 7 is connected to the upper end of the rotary drilling end 11 by a flange or bolts, or by welding.

[0031] As a specific embodiment of the excavation and bottom-laying device for power grid civil construction provided by the present invention, please refer to Figures 1 to 7 The outer wall of the extension cylinder 7 is provided with multiple second cutting teeth 72 arranged in a spiral pattern along its axial direction. The second cutting teeth 72 are used to cut the inner wall of the pit during the excavation process. The spiral direction formed by the multiple second cutting teeth 72 is the same as the spiral direction formed by the multiple first cutting teeth 13, and it must also be the same as the rotation direction of the rotary drilling end 11, that is, the spiral direction is the same as the rotation direction of the rotary drilling end 11. The arrangement of the second cutting teeth 72 will not affect the use of the countersunk bolts 71.

[0032] In order to adjust the excavation diameter of the pit, as a specific embodiment of the pit-digging and bottom-setting device for power grid civil construction provided by the present invention, please refer to... Figures 1 to 7 The rotary drilling rig 1 has a variable-diameter rotary drilling section 8 connected to its lower end at the rotary drilling end 11. The variable-diameter rotary drilling section 8 is used to rotary drill into the soil and form a pit, and the diameter of the pit excavated by the variable-diameter rotary drilling section 8 can be adjusted. In the prior art, the excavation diameter of the pit cannot be adjusted. If the diameter of the pole to be constructed is large or small, the diameter of the hole formed by the rotary drilling end 11 cannot be adjusted. By using the variable-diameter rotary drilling section 8, the technical problem of not being able to adjust the rotary drilling diameter in the prior art can be solved.

[0033] By using the variable-diameter rotary drilling unit 8, it is possible to excavate pits of different diameters. However, the excavation depth is not as great as that of the rotary drilling end 11. This variable-diameter rotary drilling unit 8 can be regarded as a device for excavating shallow pits. Alternatively, the variable-diameter rotary drilling unit 8 can be used for excavation first, followed by the rotary drilling end 11.

[0034] As a specific embodiment of the excavation and bottom-laying device for power grid civil construction provided by the present invention, please refer to Figures 1 to 7 The variable-diameter rotary drilling unit 8 includes a horizontal rail 81, multiple auger drills 82, and multiple limiting members 84. The upper end of the horizontal rail 81 is inserted into the rotary drilling end 11 and detachably connected to the rotary drilling end 11, while the lower end has a slide rail 83 arranged along its length. The center of the horizontal rail 81 in the horizontal direction is the center of the drilled pit. The multiple auger drills 82 are arranged vertically side by side, with the upper end being the drive end, and are slidably connected to the slide rail 83. The auger drills 82 have the freedom to slide along the slide rail 83. 82 is used for rotary excavation of soil and is equidistant from the center of the pit. Multiple auger drills 82 are combined on the circumference of the horizontal plane to form an excavation assembly for excavating the pit. The excavation assembly is coaxially set with the rotary drilling end 11. The diameter of the excavated pit is changed by adjusting the position of multiple auger drills 82 on the slide rail 83. Multiple limiting members 84 pass through the horizontal rail 81 and are fastened to the upper end of the auger drill 82. The limiting members 84 are used to limit the position of the auger drill 82 on the horizontal rail 81 or the slide rail 83. The upper end of the horizontal rail 81 has a cylindrical protrusion that can be inserted into the rotary drilling end 11 to achieve a fixed connection with it. Thus, when the rotary drilling end 11 rotates, it drives multiple auger drills 82 to rotate. However, the auger drills 82 themselves can also rotate. The rotation of the rotary drilling end 11 can be considered as revolution, while the rotation of the auger drills 82 can be considered as rotation. This combination of revolution and rotation allows for pit excavation, improving excavation efficiency. It is important to note that the excavation depth depends on the length or depth of the auger drill rod of the auger drill 82; it is generally used for shallower pits.

[0035] When it is necessary to adjust the excavation diameter of the pit, the position of the auger drill 82 can be adjusted on the slide 83 first. It is necessary to ensure that multiple auger drills 82 can form a circle and be on the same circumference. This can make the formation efficiency of the excavated pit high.

[0036] As a specific embodiment of the excavation and bottom-laying device for power grid civil construction provided by the present invention, please refer to Figures 1 to 7 The rotary drilling end 11 is hollow inside. The tamping assembly 6 includes a fitting part 61, an elastic connector 62, a compaction part 63, and a fixed connector 64. The fitting part 61 is fitted inside the rotary drilling end 11 and is detachably connected to it. The elastic connector 62 is connected to the lower end of the fitting part 61 and has the freedom to extend and retract vertically. The compaction part 63 is located directly below the fitting part 61, and its upper end is fixedly connected to the lower end of the elastic connector 62 for compacting the soil. The fixed connector 64 is located on the outer wall of the fitting part 61, with one end engaging with the fitting part 61 and the other end hinged to the compaction part 63. Rotating the fixed connector 64 away from the fitting part 61 releases the connection to the fitting part 61; rotating the fixed connector 64 towards the fitting part 61 fixes the fitting part 61 in place, and after connection, the elastic connector 62 loses its elasticity. The upper part of the fitting part 61 is inserted into the rotary drilling end 11. Figure 5 The dotted line in the upper middle section represents the rotary drilling end 11. The rotary drilling end 11 drives the mounting part 61 to move up and down. The mounting part 61, through the elastic connector 62, drives the compaction part 63 to move up and down. The compaction part 63 can compact the soil. The function of the elastic connector 62 is to provide the compaction part 63 with a certain impact force on the soil, but also allow it to have a certain rebound force after being compacted. In this way, the soil deformation is smaller and the soil is easier to compact. The elastic connector 62 is a high-strength spring used in the prior art, which can pull the compaction part 63 to move up and down. With the up and down movement of the mounting part 61, the compaction part 63 is allowed to have a certain up and down elastic movement, which can achieve repeated compaction of the soil. As the mounting part 61 continues to press down, when the mounting part 61 compresses the elastic connector 62 and continues to move towards the compaction part 63, the compaction force of the compaction part 63 on the soil is greater. The more stable the soil is compacted, the higher the soil strength. When the elastic connector 62 is not needed, the fixed connector 64 can be used to fix the sleeve part 61 and the compaction part 63 together. In this case, the compaction part 63 and the sleeve part 61 are combined into a whole and move with the up and down movement of the rotary drilling end 11, which can also achieve compaction of the soil. The compaction method at this time can be called "rigid compaction", while the compaction method when using the elastic connector 62 can be called "elastic compaction".

[0037] The fixed connector 64 can be seen as the fixed connection between the side panels of a truck and the pillars on the vehicle, which we see in our daily lives.

[0038] Preferably, magnets 65 (preferably electromagnets) that can magnetically attract each other are respectively provided at the lower end of the sleeve part 61 and the upper end of the compaction part 63. The magnets 65 are connected to wire harnesses. When the magnets 65 are energized, the two magnets 65 attract each other, fixing the sleeve part 61 and the compaction part 63 together. In this case, the fixing connector 64 is not needed. This fixing method is essentially a replacement for the fixing connector 64. Multiple fixing connectors 64 are arranged along the outer circumference of the sleeve part 61, forming a circle, and together they serve to provide support and fixation.

[0039] As a specific embodiment of the excavation and bottom-laying device for power grid civil construction provided by the present invention, please refer to Figures 1 to 7 The lower end of the compaction section 63 is detachably connected to multiple compaction components 9. Each compaction component 9 has a wear-resistant block 10 connected to its lower end. The wear-resistant block 10 is used to compact the soil. The multiple compaction components 9 form a circle around the circumference of the compaction section 63, and the outer diameter of this circle is adjustable. The multiple compaction components 9 are connected to each other by fasteners, and their upper ends are firmly connected to the lower end of the compaction section 63. The multiple compaction components 9 have different structures, but their upper ends are all connected to the lower end of the compaction section 63 by fasteners. There can be gaps between the multiple compaction components 9, or they can be tightly fitted together without gaps, both methods achieving soil compaction. When the diameter of the circle formed by the multiple compaction components 9 is small, other compaction components 9 can be added to the outside of the outermost compaction component 9, such as... Figure 6 The tamping element 9 is added on the outer side. The tamping elements 9 can be connected to each other using fasteners. The wear-resistant block 10 provides wear resistance, thus extending service life.

[0040] An insertion hole is provided at the bottom end of the compaction part 63, and a protrusion is provided at the top end of the compaction part 9, which can be inserted into the insertion hole. A mounting hole is provided on the protrusion. By using screws to pass through the mounting hole and connect to the compaction part 63, the compaction part 9 can be fixed to the compaction part 63. The wear-resistant block 10 is a common wear-resistant block, and its upper end can be connected to the compaction part 9 by snap-fit ​​or welding. The bottom ends of the wear-resistant blocks 10 of multiple compaction parts 9 are all in the same plane.

[0041] This invention also provides an integrated excavation and bottom-laying construction device for power grid civil engineering construction. Please refer to [link / reference]. Figures 1 to 7 The integrated excavation and bottom-laying construction equipment for power grid civil construction includes a transport vehicle for transporting power poles, a crane for hoisting power poles into the pit, and an excavation and bottom-laying device for power grid civil construction.

[0042] The beneficial effects of the integrated excavation and bottom-laying construction equipment for power grid civil construction provided by this invention are as follows: Compared with the prior art, the integrated excavation and bottom-laying construction equipment for power grid civil construction includes a transport vehicle, a crane, and an excavation and bottom-laying device for power grid civil construction. The cooperation between these multiple devices forms an integrated construction equipment, which can complete the excavation of pits for power grid construction and the construction of poles. It can automatically compact the soil and has the technical effects of improving the efficiency of pit excavation, reducing the amount of excavated earthwork, being highly practical, ensuring safe and reliable construction, reducing project costs, and improving quality and efficiency.

[0043] The transport vehicle and reversing vehicle used are both existing mechanical equipment. They work together with the power grid civil construction pit excavation and bottom-laying device of the present invention to realize the automatic construction of power grid poles, reduce manual intervention, reduce the labor intensity of manual construction operations, and improve the automation level and work efficiency of power grid construction.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for excavating and lowering pits in power grid civil construction, characterized in that, The system includes a rotary drilling rig, a chassis, a hoist, a communication unit, and a control panel. The rotary drilling rig has a rotary drilling end adapted to rotate and drill into the soil, and the rotation speed and depth of the rotary drilling end into the soil are controlled by a first controller of the rotary drilling rig. The chassis is placed at the bottom of the excavated pit and is adapted to support and fix the bottom end of a pole to be installed. The hoist is connected to the rotary drilling rig and is adapted to lift the chassis from the ground and place the chassis inside the pit. The hoist has a second controller adapted to control the hoisting operation. The communication unit is connected to the rotary drilling rig and has a wireless communication module that is electrically connected to the first and second controllers. The control panel is wirelessly remotely connected to the wireless communication module and has a control module adapted to receive operating signals from the rotary drilling end and the hoist. The excavation and bottom-setting device for power grid civil construction also includes a tamping component connected to the rotary drilling end of the rotary drilling machine. The tamping component is suitable for compacting the backfill soil and the bottom of the pit, so that the bottom of the pit forms a flat shape. The rotary drilling end is hollow inside. The tamping assembly includes a fitting part, an elastic connector, a compaction part, and a fixed connector. The fitting part is adapted to be fitted inside the rotary drilling end and is detachably connected to the rotary drilling end. The elastic connector is connected to the lower end of the fitting part and has the freedom to extend and retract vertically. The compaction part is located directly below the fitting part, and its upper end is fixedly connected to the lower end of the elastic connector and is suitable for compacting the soil. The fixed connector is located on the outer wall of the fitting part. One end of the fixed connector engages with the fitting part, and the other end is hinged to the compaction part. Rotating the fixed connector away from the fitting part releases the connection with the fitting part; rotating the fixed connector closer to the fitting part fixes the fitting part in place. After the fixed connector is connected to the fitting part, the elastic connector loses its elasticity.

2. The excavation and bottom-laying device for power grid civil construction as described in claim 1, characterized in that, The rotary drilling end has a cylindrical structure and a digging tooth at the bottom. Multiple first cutting teeth are arranged in a spiral pattern along its axial direction on the outer wall of the cylindrical structure of the rotary drilling end. The first cutting teeth are suitable for cutting the inner wall of the pit during the excavation process.

3. The excavation and bottom-laying device for power grid civil construction as described in claim 2, characterized in that, The structural component on the rotary drilling rig used to connect the rotary drilling end is defined as a connecting part. An extension cylinder is connected to the upper end of the rotary drilling end. The extension cylinder is detachably connected to the connecting part. The lower end of the extension cylinder is used to connect to the rotary drilling end. The extension cylinder is adapted to extend the rotary drilling length of the rotary drilling end. The outer diameter of the extension cylinder is less than or equal to the outer diameter of the rotary drilling end.

4. The excavation and bottom-laying device for power grid civil construction as described in claim 3, characterized in that, The outer wall of the extension tube is provided with a plurality of second cutting teeth arranged in a spiral along its axial direction. The second cutting teeth are used to cut the inner wall of the pit during the excavation process. The spiral direction formed by the plurality of second cutting teeth is the same as the spiral direction formed by the plurality of first cutting teeth.

5. The excavation and bottom-laying device for power grid civil construction as described in claim 1, characterized in that, The rotary drilling rig has a variable diameter rotary drilling section connected to its lower end. The variable diameter rotary drilling section is suitable for rotary drilling into the soil to form a pit, and the diameter of the pit excavated by the variable diameter rotary drilling section can be adjusted.

6. The excavation and bottom-laying device for power grid civil construction as described in claim 5, characterized in that, The variable-diameter rotary drilling unit includes a horizontal rail, multiple auger drills, and multiple limiting components. The upper end of the horizontal rail is adapted to be inserted into the rotary drilling end and detachably connected to the rotary drilling end. The lower end of the horizontal rail has a slide rail arranged along its length. The center of the horizontal rail in the horizontal direction is the center of the rotary-dug pit. The multiple auger drills are arranged vertically side by side. The upper end of each auger drill is the drive end and is slidably connected to the slide rail. Each auger drill has the freedom to slide along the slide rail. The multiple auger drills are adapted to rotary-dig soil and are equidistant from the center of the pit. The multiple auger drills are combined with each other on the circumference of the horizontal plane to form an excavation assembly for excavating the pit. The excavation assembly is coaxially arranged with the rotary drilling end. The diameter of the excavated pit can be changed by adjusting the position of the multiple auger drills on the slide rail. The multiple limiting components pass through the horizontal rail and are fastened to the upper end of each auger drill. The limiting components are adapted to limit the position of the auger drill on the horizontal rail or the slide rail.

7. The excavation and bottom-laying device for power grid civil construction as described in claim 1, characterized in that, The lower end of the compaction section is detachably connected to multiple compaction components. The lower end of each compaction component is connected to a wear-resistant block. The wear-resistant block is used to compact the soil. The multiple compaction components form a circle around the circumference of the compaction section, and the outer diameter of the circle is adjustable. The multiple compaction components are connected to each other by fasteners. The upper end of each compaction component is fastened to the lower end of the compaction section.

8. An integrated excavation and bottom-digging construction equipment for power grid civil engineering construction, characterized in that: It includes a transport vehicle for transporting utility poles, a crane for hoisting utility poles into the pit, and a pit-digging device for power grid civil construction as described in any one of claims 1-7.

Images