A drilling device for ground construction

Abstract

The present invention discloses a drilling device for ground construction, which relates to the technical field of ground drilling; it includes a drilling member, and a lateral movement assisting member is installed on the drilling member, and the lateral movement assisting member is used to prevent soil leakage during the lateral movement of the drilling member; a soil shifting member is installed on the lateral movement assisting member; the soil shifting member is used to shift the drilled soil; two outward expansion and extrusion members are installed on the lateral movement assisting member; the outward expansion and extrusion members are used to fit the hole wall; a downward pressing driving part is respectively installed on the two lateral movement assisting members; the downward pressing driving part is used to squeeze the two outward expansion and extrusion members to expand; to solve the problems that the existing drilling device for ground construction is not convenient for directly drilling and moving laterally, and the soil between adjacent holes is prone to collapse; by using the lateral movement assisting member in cooperation with the drilling member, the structure can be displaced laterally during actual drilling, and the drilling efficiency of the structure can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ground drilling, and specifically to a drilling device for ground construction. Background Technique

[0002] In actual steel sheet pile construction work, it is usually necessary to insert steel sheet piles into the ground for cofferdam work. Before steel sheet pile construction, it is usually necessary to drill a guiding hole on the ground for construction to reduce the difficulty of inserting the steel sheet pile into the ground. The current drilling device for ground construction mainly drills vertically through a drill bit and ensures that the drilled holes are connected, which is not convenient for direct horizontal drilling and movement. The drilling efficiency is low, and it is necessary to frequently lift the drill bit to remove soil. At the same time, the soil between adjacent holes is prone to collapse, which is not conducive to maintaining the quality of the hole wall. At the same time, it is not convenient to give real-time prompts in the drilling area, and there are relatively large potential safety hazards.

[0003] Therefore, we propose a drilling device for ground construction. Summary of the Invention

[0004] The purpose of the present invention is to provide a drilling device for ground construction to solve the problems that the current drilling device for ground construction is not convenient for direct horizontal drilling and movement and the soil between adjacent holes is prone to collapse as mentioned in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A drilling device for ground construction, including a drilling member, a transverse movement auxiliary member is installed on the drilling member, and the transverse movement auxiliary member is used to prevent soil leakage when the drilling member moves horizontally; a soil pushing member is installed on the transverse movement auxiliary member; the soil pushing member is used to push the drilled soil; two outward expansion and extrusion members are installed on the transverse movement auxiliary member; the outward expansion and extrusion members are used to fit the hole wall; a downward pressure driving part is respectively installed on the two transverse movement auxiliary members; the downward pressure driving part is used to squeeze the two outward expansion and extrusion members to expand; an anti-falling warning member is installed on the soil pushing member; the anti-falling warning member is used to enclose the periphery of the drilling hole; the drilling member includes: a spiral drill bit and an upper rotary frame, and the upper rotary frame is rotatably sleeved on the spiral drill bit; a pin hole for connecting the drill string of the drilling rig is provided at the top of the spiral drill bit; the spiral drill bit is used for horizontal drilling and soil cutting.

[0006] Preferably, the drilling member further includes: a soil loosening drill bit, and a circle of soil loosening drill bits are fixedly installed at the bottom of the spiral drill bit; the soil loosening drill bits are used to loosen the soil at the bottom of the hole.

[0007] Preferably, the lateral movement assisting member includes: a soil retaining arc-shaped cover, a drag reduction roller shaft, and a bottom collar. The soil retaining arc-shaped cover is fixedly installed on the upper slewing frame by bolts; the soil retaining arc-shaped cover is located on the side of the auger bit; two drag reduction roller shafts are rotatably embedded inside the soil retaining arc-shaped cover, and the two drag reduction roller shafts are in rolling contact with the auger bit; a bottom collar is fixedly installed at the bottom of the soil retaining arc-shaped cover, and the bottom collar is sleeved on the bottom of the auger bit; the soil loosening bit is located above a circle of soil loosening bits; both sides of the soil retaining arc-shaped cover are used for fitting against the hole wall of the drilled hole.

[0008] Preferably, the soil pushing member includes: a pushing plate and a rotary connecting seat. Two pushing plates are fixedly installed on the soil retaining arc-shaped cover by bolts, and the two soil retaining arc-shaped covers are installed obliquely; the two pushing plates are respectively used for fitting against the ground; rotary connecting seats are respectively fixedly installed on the two pushing plates; the pushing plate is used for pushing soil.

[0009] Preferably, the outward expansion and extrusion member includes: a rotary connecting arm, a swinging protrusion, and a rotary roller. Four rotary connecting arms are rotatably installed on the soil retaining arc-shaped cover, and the four rotary connecting arms are aligned in pairs up and down; swinging protrusions are respectively fixedly installed on the four rotary connecting arms, and the sides of the swinging protrusions are chamfered; a rotary roller is rotatably installed on the two aligned rotary connecting arms up and down, and a circle of protrusions is provided on the rotary roller; the rotary roller is used for rolling and fitting against the inner wall of the drilled hole. [[ID=X]]

[0010] Preferably, the outward expansion and extrusion member further includes: a driving motor. Driving motors are respectively fixedly installed on the two upper rotary connecting arms, and the output shafts of the two driving motors are respectively fixedly installed on the rotary roller; the driving motor is used for driving the rotary roller to rotate.

[0011] Preferably, the downward pressing driving part includes: a downward pressing slider, an extrusion inclined surface, and a driving hydraulic cylinder. The downward pressing slider is attached to the soil retaining arc-shaped cover; two extrusion inclined surfaces are fixedly installed on the downward pressing slider, and the two extrusion inclined surfaces are respectively inclined surface protrusion structures; the two extrusion inclined surfaces respectively squeeze and fit against the two swinging protrusions on the same side; driving hydraulic cylinders are respectively fixedly installed at both ends of the downward pressing slider, and the output shafts of the two driving hydraulic cylinders are respectively fixedly installed on both sides of the soil retaining arc-shaped cover; when the extrusion inclined surface moves to squeeze the swinging protrusion, the rotary connecting arm drives the rotary roller to expand outward.

[0012] Preferably, the anti-falling warning member includes: a wire winding roller and a warning wire. The wire winding roller is rotatably sleeved on the rotary connecting seat; the warning wire is spirally wound on the wire winding roller; the warning wire is of a warning color; a light strip is provided on the warning wire.

[0013] Preferably, the anti-falling warning component further includes: a tightening arm, a friction rubber block, and a friction rubber ring. The tightening arm is fixedly installed on the rotary connection seat; the friction rubber block is fixedly installed on the tightening arm and elastically fits the wire winding roller; the friction rubber ring is fixedly installed on the tightening arm, and a through hole is provided in the middle of the friction rubber ring; the middle of the friction rubber ring elastically fits the warning wire; the friction rubber ring is used to prevent the warning wire from loosening; the friction rubber block is used to reduce the rotation speed of the wire winding roller.

[0014] Preferably, the anti-falling warning component further includes: a ground-inserting shaft, a ground-inserting detection shaft, and a detection switch. The ground-inserting shaft is fixedly installed at the end of the warning wire; the ground-inserting detection shaft is slidably inserted at the bottom of the ground-inserting shaft; the detection switch is fixedly installed on the ground-inserting detection shaft and is pressed against the inner side of the ground-inserting shaft; the detection switch is electrically connected to the control power supply of the driving motor; the ground-inserting shaft is used to insert into the ground.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The present invention adopts a lateral movement auxiliary component in cooperation with a drilling component, which can facilitate the lateral displacement drilling of this structure during actual drilling, improve the drilling efficiency of this structure, realize continuous soil transportation, and at the same time, this structure uses a soil retaining arc-shaped cover to automatically enclose the soil on the auger bit during the movement along the drilling hole, which can prevent soil leakage. By using the auger bit to drill in a lateral movement manner, the hole wall of the drilling path can be made smoother.

[0017] The outer expansion extrusion component can be used to cooperate with the downward pressure driving part to expand and fit inside the drilled hole wall, assist in positioning the soil retaining arc-shaped cover, improve the stability of the soil retaining arc-shaped cover, and at the same time, by pressing, it can assist in extruding the drilled hole wall, improve the stability of the drilled hole wall, reduce the hole wall collapse rate. The rotary roller can achieve active rotation and roll and displace on the hole wall surface, which can assist in increasing the power of the auger bit to move in the hole, further improve the drilling efficiency, and at the same time, using the rotary roller to apply a propelling force at the rear of the soil retaining arc-shaped cover is more comprehensive, keeping the lower part of the soil retaining arc-shaped cover also having a stable forward propelling force to assist in drilling.

[0018] The anti-falling warning component can assist in pulling out a warning tape outside a row of holes during actual drilling of a guiding hole, improve the actual drilling safety of this structure, prompt the staff, reduce potential safety hazards, and prevent the staff from falling when directly crossing the drilling hole. At the same time, this structure can insert the anti-falling warning component into the ground to ensure that the driving motor can be normally controlled to be powered on and started only after the ground-inserting shaft is installed on the ground, which can prevent the staff from forgetting, can give a warning outside the ground opening, prompt the construction personnel in the site, increase safety, and also help with lighting to prompt the staff of the drilling position. Description of the Drawings

[0019] Figure 1 Schematic diagram of the overall structure of a drilling device for ground construction according to the present invention;

[0020] Figure 2 Schematic diagram of the bottom structure of a drilling device for ground construction according to the present invention;

[0021] Figure 3 Cross-sectional view of the internal structure of a drilling device for ground construction according to the present invention;

[0022] Figure 4 Schematic diagram of the structure of the drilling part of the present invention;

[0023] Figure 5 Schematic diagram of the structure of the lateral movement assisting part of the present invention;

[0024] Figure 6 Schematic diagram of the structure of the downward pressing driving part of the present invention;

[0025] Figure 7 For the present invention Figure 6 Enlarged view of the structure of area B in;

[0026] Figure 8 For the present invention Figure 2 Enlarged view of the structure of area C in;

[0027] Figure 9 Schematic diagram of the outer structure of the anti-falling warning part of the present invention;

[0028] Figure 10 Cross-sectional view of the internal structure of the anti-falling warning part of the present invention.

[0029] In the figure: 1. Drilling part; 101. Spiral drill bit; 102. Upper slewing frame; 103. Soil loosening drill bit; 2. Lateral movement assisting part; 201. Soil retaining arc cover; 202. Drag reduction roller shaft; 203. Bottom collar; 3. Soil scraping part; 301. Scraping plate; 302. Rotary connecting seat; 4. Outer expansion extrusion part; 401. Rotary connecting arm; 4011. Swing protrusion; 402. Rotary roller; 403. Driving motor; 5. Downward pressing driving part; 501. Downward pressing slider; 5011. Extrusion inclined surface; 502. Driving hydraulic cylinder; 6. Anti-falling warning part; 601. Wire winding roller; 602. Warning wire; 603. Tightening arm; 6031. Friction rubber block; 604. Friction rubber ring; 605. Ground inserting shaft; 606. Ground inserting detection shaft; 607. Detection switch. Detailed implementation manners

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1: Please refer to Figures 1 to 10 as shown in

[0032] The present invention provides a technical solution: a drilling device for ground construction, including a drilling member 1, a transverse movement assisting member 2 is installed on the drilling member 1, and the transverse movement assisting member 2 is used to prevent soil leakage when the drilling member 1 moves transversely; a soil pushing member 3 is installed on the transverse movement assisting member 2; the soil pushing member 3 is used to push the drilled soil; two outward expansion and extrusion members 4 are installed on the transverse movement assisting member 2; the outward expansion and extrusion members 4 are used to fit the hole wall; a downward pressing driving part 5 is respectively installed on the two transverse movement assisting members 2; the downward pressing driving part 5 is used to squeeze the two outward expansion and extrusion members 4 to expand; an anti-falling warning member 6 is installed on the soil pushing member 3; the anti-falling warning member 6 is used to enclose the periphery of the drill hole; the drilling member 1 includes: a spiral drill bit 101 and an upper rotary frame 102, the spiral drill bit 101 is rotatably sleeved with the upper rotary frame 102; a pin hole for connecting the drill string of the drill rig is provided at the top of the spiral drill bit 101; the spiral drill bit 101 is used to move transversely and drill soil.

[0033] Among them, the drilling component 1 further includes: a soil-loosening drill bit 103, and a circle of soil-loosening drill bits 103 is fixedly installed at the bottom of the spiral drill bit 101; the soil-loosening drill bit 103 is used for loosening the soil at the bottom of the hole; the lateral movement auxiliary component 2 includes: a soil-retaining arc-shaped cover 201, a drag-reducing roller shaft 202, and a bottom collar 203. The soil-retaining arc-shaped cover 201 is fixedly installed on the upper slewing frame 102 by bolts; the soil-retaining arc-shaped cover 201 is located on the side of the spiral drill bit 101; two drag-reducing roller shafts 202 are rollingly embedded inside the soil-retaining arc-shaped cover 201, and the two drag-reducing roller shafts 202 are in rolling contact with the spiral drill bit 101; the bottom of the soil-retaining arc-shaped cover 201 is fixedly installed with a bottom collar 203, and the bottom collar 203 is sleeved on the bottom of the spiral drill bit 101; the soil-loosening drill bit 103 is located above the circle of soil-loosening drill bits 103; both sides of the soil-retaining arc-shaped cover 201 are used for fitting against the hole wall of the drill hole; the soil-scraping component 3 includes: a scraping plate 301 and a rotary connecting seat 302. Two scraping plates 301 are fixedly installed on the soil-retaining arc-shaped cover 201 by bolts, and the two soil-retaining arc-shaped covers 201 are obliquely installed; the two scraping plates 301 are respectively used for fitting against the ground; rotary connecting seats 302 are respectively fixedly installed on the two scraping plates 301; the scraping plate 301 is used for pushing soil. By using the lateral movement auxiliary component 2 to cooperate with the drilling component 1, it is convenient for this structure to perform lateral displacement drilling during actual drilling, which can improve the drilling efficiency of this structure. There is no need for cumbersome multiple vertical drillings and discharging the soil in the drill bit after each drilling. It can realize continuous soil transportation. At the same time, this structure uses the soil-retaining arc-shaped cover 201 to automatically enclose the soil on the spiral drill bit 101 during the movement along the drill hole, which can prevent soil leakage. At the same time, this structure uses the way that the spiral drill bit 101 can move laterally for drilling, which can make the hole wall of the drilling path smoother, avoiding the problem that the adjacent drill holes have a wavy edge and poor neatness in the traditional successive drilling method, and a high risk of collapse when inserting steel sheet piles later. By using the soil-scraping component 3, it is convenient for this structure to push the soil discharged from the drilling to both sides in real time, which can prevent the soil from backfilling into the drill hole. The drilling control of this structure is simple and fast. As the spiral drill bit 101 rotates in real time, the soil can be discharged outward. The soil discharged to the ground is guided by the scraping plate 301 and is moved in real time by the driving of the drilling rig in cooperation with the scraping plate 301, which can ensure that the drilled soil is diverted outward and will not fall into the drilled groove hole. As the spiral drill bit 101 moves laterally for drilling and rotates, the soil-retaining arc-shaped cover 201 cooperates with the upper slewing frame 102 and the bottom collar 203 to sleeve the spiral drill bit 101. The soil-retaining arc-shaped cover 201 will not rotate with the spiral drill bit 101 but always remains in contact with the hole wall.

[0034] Among them, the outward expansion and extrusion part 4 includes: a rotary connecting arm 401, a swinging protrusion 4011 and a rotary roller 402. Four rotary connecting arms 401 are rotatably installed on the retaining arc-shaped cover 201, and the four rotary connecting arms 401 are aligned in pairs up and down; swinging protrusions 4011 are respectively and fixedly installed on the four rotary connecting arms 401, and the sides of the swinging protrusions 4011 are chamfered; a rotary roller 402 is rotatably installed on the two aligned rotary connecting arms 401 up and down, and a circle of protrusions is provided on the rotary roller 402; the rotary roller 402 is used to roll and fit on the inner wall of the drilling hole; the outward expansion and extrusion part 4 further includes: a driving motor 403. Driving motors 403 are respectively and fixedly installed on the two upper rotary connecting arms 401, and the output shafts of the two driving motors 403 are respectively and fixedly installed on the rotary roller 402; the driving motor 403 is used to drive the rotary roller 402 to rotate; the downward pressing driving part 5 includes: a downward pressing slider 501, an extrusion inclined surface 5011 and a driving hydraulic cylinder 502. The downward pressing slider 501 is attached to the retaining arc-shaped cover 201; two extrusion inclined surfaces 5011 are fixedly installed on the downward pressing slider 501, and the two extrusion inclined surfaces 5011 are respectively inclined surface protrusion structures; the two extrusion inclined surfaces 5011 respectively extrude and fit the two swinging protrusions 4011 on the same side; driving hydraulic cylinders 502 are respectively and fixedly installed at both ends of the downward pressing slider 501, and the output shafts of the two driving hydraulic cylinders 502 are respectively and fixedly installed on both sides of the retaining arc-shaped cover 201; when the extrusion inclined surface 5011 moves to extrude the swinging protrusion 4011, the rotary connecting arm 401 drives the rotary roller 402 to expand outward. The outward expansion and extrusion part 4 can be used to cooperate with the downward pressing driving part 5 to expand and fit inside the hole wall of the drilling, can assist in positioning the retaining arc-shaped cover 201, improve the stability of the retaining arc-shaped cover 201, and at the same time can assist in extruding the hole wall of the drilling by pressing, improve the stability of the hole wall of the drilling, reduce the hole wall collapse rate, improve the compactness of the soil on the hole wall. At the same time, the rotary roller 402 can rotate actively and roll and displace on the hole wall surface, which can assist in improving the power of the spiral drill bit 101 to move in the hole, further improve the drilling efficiency. At the same time, using the rotary roller 402 to apply a propulsive force at the rear of the retaining arc-shaped cover 201 is more comprehensive, keeping the lower part of the retaining arc-shaped cover 201 also having a stable forward propulsive force to assist in drilling. As the spiral drill bit 101 is controlled to displace by the drilling rig, the driving motor 403 can be used to drive the rotary roller 402 to rotate actively, roll and advance on the hole wall surface, and assist in compacting the hole wall. The displacement speed of the rotary roller 402 only needs to be consistent with the speed at which the spiral drill bit 101 is controlled by the drilling rig to move horizontally and drill.

[0035] Embodiment 2. On the basis of Embodiment 1, the anti-falling warning member 6 includes: a wire winding roller 601 and a warning wire 602. The wire winding roller 601 is rotatably sleeved on the rotary connecting seat 302; the warning wire 602 is spirally wound around the wire winding roller 601; the warning wire 602 is of a warning color; a light strip is provided on the warning wire 602; the anti-falling warning member 6 further includes: a tightening arm 603, a friction rubber block 6031 and a friction rubber ring 604. The tightening arm 603 is fixedly installed on the rotary connecting seat 302; the friction rubber block 6031 is fixedly installed on the tightening arm 603, and the friction rubber block 6031 elastically fits the wire winding roller 601; the friction rubber ring 604 is fixedly installed on the tightening arm 603, and a through hole is provided in the middle of the friction rubber ring 604; the middle of the friction rubber ring 604 elastically fits the warning wire 602; the friction rubber ring 604 is used to prevent the warning wire 602 from loosening; the friction rubber block 6031 is used to reduce the rotation speed of the wire winding roller 601; the anti-falling warning member 6 further includes: a ground-inserting shaft 605, a ground-inserting detection shaft 606 and a detection switch 607. The ground-inserting shaft 605 is fixedly installed at the end of the warning wire 602; the ground-inserting detection shaft 606 is slidably inserted at the bottom of the ground-inserting shaft 605; the detection switch 607 is fixedly installed on the ground-inserting detection shaft 606, and the detection switch 607 is pressed against and fits the inner side of the ground-inserting shaft 605; the detection switch 607 is electrically connected to the control power supply of the driving motor 403; the ground-inserting shaft 605 is used to insert into the ground. The anti-falling warning member 6 can be used to assist in pulling out a warning belt outside a row of holes during actual drilling of a guiding hole, which can improve the actual drilling safety of this structure, can prompt the staff, reduce potential safety hazards, prevent the staff from falling when directly crossing the drilling hole, and at the same time, this structure can use the anti-falling warning member 6 to insert into the ground to ensure that the driving motor 403 can be normally controlled to be powered on and started only after the ground-inserting shaft 605 is installed on the ground, which can prevent the staff from forgetting. Because there is still a certain distance between the pile driving position and the spiral drill bit 101 when a traditional pile driver constructs steel sheet piles, this structure can assist in real-time warning work. When the ground-inserting shaft 605 is inserted into the ground, the ground-inserting detection shaft 606 will move up and squeeze the detection switch 607 under the blockage of the ground soil. Only at this time can the driving motor 403 be normally controlled to be powered on and started. As the spiral drill bit 101 moves, the warning wire 602 on the wire winding roller 601 can be unrolled and discharged. When the warning wire 602 is discharged, the friction rubber ring 604 is used to prevent the warning wire 602 from loosening, and the friction rubber block 6031 can also fit the wire winding roller 601 to limit the speed, preventing too much warning wire 602 from being discharged at once, which can warn outside the ground opening, prompt the construction staff in the site, increase safety, and also help with lighting to prompt the staff of the drilling position.

[0036] The working principle of this embodiment is as follows: First, the top of the spiral drill bit 101 is inserted into the drill string of the drilling rig, and the pin is inserted into the pin hole on the spiral drill bit 101 to fix it to the drill string of the drilling rig. First, use a normal rotary drill bit to drill two adjacent holes on the ground to facilitate the placement of this structure in the hole. At this time, the spiral drill bit 101 can be controlled to rotate by the drilling rig, and the drilling rig can be controlled to move, driving the spiral drill bit 101 to move together, directly applying pressure to the side of the borehole wall for drilling, and the opposite side is protected by the retaining arc cover 201 that fits on the hole wall to prevent soil leakage. As the spiral drill bit 101 The real-time rotation can discharge the soil outward. The soil discharged from the ground is guided by the toggle plate 301 and is moved in real time by the drilling rig, which can ensure that the drilled soil is diverted outward and will not fall into the drilled slot. After the structure is placed in the drill hole, the hydraulic cylinder 502 can be controlled to drive the extrusion slope 5011 to move downward, which can squeeze the swing protrusion 4011. The two rotary connecting arms 401 can be expanded outward and fit against the hole wall respectively. As the spiral drill bit 101 is controlled to move by the drilling rig, the soil can be drilled outward. The driving motor 403 drives the rotary roller 402 to rotate actively, push and roll on the surface of the hole wall, and assist in compacting the hole wall. The displacement speed of the rotary roller 402 is kept consistent with the speed of the spiral drill bit 101 controlled by the drilling rig to move horizontally. When the ground insertion shaft 605 is inserted into the ground, the ground insertion detection shaft 606 is blocked by the ground soil and moves up to squeeze the detection switch 607. The detection switch 607 is connected in series with the switch of the driving motor 403. Only then can the switch of the driving motor 403 be normally controlled to be powered on and started. As the spiral drill bit 101 moves, the line is reeled in. The warning line 602 on the roller 601 can be unwound and discharged, which can serve as a warning outside the hole in the ground without affecting the pile driver's follow-up piling. Because the warning line 602 is limited in length, when the spiral drill head 101 moves too long or needs to turn at a large angle, the ground insertion shaft 605 can be manually pulled out, and the warning line 602 on the winding roller 601 can be manually rotated and reinserted into the ground. In this way, the position of the ground insertion shaft 605 can be adjusted as the drilling moves, which can be more suitable for dark light environments, improve safety, and prevent forgetting to install.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling device for ground construction, including a drilling part (1), and a transverse movement assisting part (2) is installed on the drilling part (1), characterized in that: The transverse movement auxiliary part (2) is used to prevent soil leakage when the drilling part (1) moves transversely; a soil pushing part (3) is installed on the transverse movement auxiliary part (2); the soil pushing part (3) is used to push the drilled soil; Two outward expanding and squeezing parts (4) are installed on the transverse movement auxiliary part (2); the outward expanding and squeezing parts (4) are used to fit the hole wall; Lower pressing driving parts (5) are respectively installed on the two transverse movement auxiliary parts (2); the lower pressing driving parts (5) are used to squeeze the two outward expanding and squeezing parts (4) to expand; An anti-falling warning part (6) is installed on the soil pushing part (3); the anti-falling warning part (6) is used to enclose the periphery of the drilling hole; The drilling part (1) includes: a spiral drill bit (101) and an upper rotary frame (102), the spiral drill bit (101) is rotatably sleeved with the upper rotary frame (102); a pin hole for connecting the drill string of the drilling rig is provided at the top of the spiral drill bit (101); the spiral drill bit (101) is used to move transversely and drill soil; The drilling part (1) further includes: a soil loosening drill bit (103), a circle of soil loosening drill bits (103) is fixedly installed at the bottom of the spiral drill bit (101); the soil loosening drill bit (103) is used to loosen the soil at the bottom of the hole; The transverse movement auxiliary part (2) includes: a soil retaining arc-shaped cover (201), a drag reduction roller shaft (202) and a bottom collar (203), the soil retaining arc-shaped cover (201) is fixedly installed on the upper rotary frame (102) by bolts; the soil retaining arc-shaped cover (201) is located on the side of the spiral drill bit (101); two drag reduction roller shafts (202) are rollingly embedded inside the soil retaining arc-shaped cover (201), and the two drag reduction roller shafts (202) rollingly fit the spiral drill bit (101); the bottom of the soil retaining arc-shaped cover (201) is fixedly installed with a bottom collar (203), and the bottom collar (203) is sleeved on the bottom of the spiral drill bit (101); the soil loosening drill bit (103) is located above the circle of soil loosening drill bits (103); both sides of the soil retaining arc-shaped cover (201) are used to fit the hole wall of the drilling hole; The soil pushing part (3) includes: a pushing plate (301) and a rotary connecting seat (302), two pushing plates (301) are fixedly installed on the soil retaining arc-shaped cover (201) by bolts, and the two soil retaining arc-shaped covers (201) are installed obliquely; the two pushing plates (301) are respectively used to fit on the ground; rotary connecting seats (302) are respectively fixedly installed on the two pushing plates (301); the pushing plate (301) is used to push soil; The external expansion and extrusion part (4) includes: a rotary connecting arm (401), a swinging protrusion (4011) and a rotary roller (402). Four rotary connecting arms (401) are rotatably installed on the retaining arc-shaped cover (201), and the four rotary connecting arms (401) are aligned in pairs up and down; Swing protrusions (4011) are respectively and fixedly installed on the four rotary connecting arms (401), and the sides of the swing protrusions (4011) are chamfered; A rotary roller (402) is rotatably installed on the upper and lower aligned rotary connecting arms (401), and a circle of protrusions is provided on the rotary roller (402); The rotary roller (402) is used to roll and fit on the inner wall of the drill hole.

2. The drilling device for ground construction according to claim 1, characterized in that: The external expansion and extrusion part (4) further includes: a driving motor (403). Driving motors (403) are respectively and fixedly installed on the upper two rotary connecting arms (401), and the output shafts of the two driving motors (403) are respectively fixedly installed on the rotary roller (402); The driving motor (403) is used to drive the rotary roller (402) to rotate.

3. A drilling device for ground construction according to claim 1, characterized in that: The downward pressing and driving part (5) includes: a downward pressing slider (501), an extrusion inclined surface (5011) and a driving hydraulic cylinder (502). The downward pressing slider (501) is attached to the retaining arc-shaped cover (201); Two extrusion inclined surfaces (5011) are fixedly installed on the downward pressing slider (501), and the two extrusion inclined surfaces (5011) are respectively inclined surface protrusion structures; The two extrusion inclined surfaces (5011) respectively squeeze and fit the two swinging protrusions (4011) on the same side; Driving hydraulic cylinders (502) are respectively fixedly installed at both ends of the downward pressing slider (501), and the output shafts of the two driving hydraulic cylinders (502) are respectively fixedly installed on both sides of the retaining arc-shaped cover (201); When the extrusion inclined surface (5011) moves to squeeze the swinging protrusion (4011), the rotary connecting arm (401) drives the rotary roller (402) to expand outward.

4. A drilling device for ground construction according to claim 2, characterized in that: The anti-falling warning part (6) includes: a wire winding roller (601) and a warning wire (602). The wire winding roller (601) is rotatably sleeved on the rotary connecting seat (302); A warning wire (602) is spirally wound on the wire winding roller (601); The warning wire (602) is of a warning color; A light strip is provided on the warning wire (602).

5. The drilling device for ground construction according to claim 4, characterized in that: The anti-falling warning part (6) further includes: a tightening arm (603), a friction rubber block (6031) and a friction rubber ring (604). A tightening arm (603) is fixedly installed on the rotary connecting seat (302); A friction rubber block (6031) is fixedly installed on the tightening arm (603), and the friction rubber block (6031) elastically fits the wire winding roller (601); A friction rubber ring (604) is fixedly installed on the tightening arm (603), and a through hole is provided in the middle of the friction rubber ring (604); The middle part of the friction rubber ring (604) elastically fits the warning wire (602); The friction rubber ring (604) is used to prevent the warning wire (602) from loosening; The friction rubber block (6031) is used to reduce the rotation speed of the wire winding roller (601).

6. The drilling device for ground construction according to claim 5, characterized in that: The anti-falling warning device (6) further includes: a ground-inserting shaft (605), a ground-inserting detection shaft (606), and a detection switch (607). The ground-inserting shaft (605) is fixedly installed at the end of the warning line (602); the ground-inserting detection shaft (606) is slidably inserted at the bottom of the ground-inserting shaft (605); a detection switch (607) is fixedly installed on the ground-inserting detection shaft (606), and the detection switch (607) is pressed against and fitted to the inner side of the ground-inserting shaft (605); the detection switch (607) is electrically connected to the control power supply of the driving motor (403); the ground-inserting shaft (605) is used for inserting into the ground.

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