A drilling platform for highway bridge construction

Abstract

The present invention discloses a drilling platform for highway bridge construction, comprising a drilling platform body fixedly mounted at the rear end of an engineering vehicle, an inverted L-shaped frame, a lifting plate, a spiral drill rod and other key components. The lifting plate is provided with a knocking mechanism, which drives the spiral drill rod to move up and down reciprocatingly through a cylindrical sleeve, an inclined circular plate, an arc-shaped slider and a gear transmission, thereby achieving reciprocating knocking and crushing of the rock formation and improving drilling efficiency. The platform is also provided with an adjustment mechanism, which accurately controls the drilling depth of the spiral drill rod through the screw connection between the threaded rod and the threaded sleeve block, thereby enhancing drilling accuracy. The dust reduction mechanism utilizes the cooperation of a piston plate, a pull rod and a one-way valve to spray water atomization to the drill hole to achieve dust reduction. The third gear at the bottom end of the fixed ring drives the bulldozer plate to perform a circular motion, moving the crushed soil at the drill hole to prevent backfilling of the drill hole. The present invention improves drilling efficiency through the coordinated use of the above-mentioned structures, thereby achieving efficient, accurate and environmentally friendly highway bridge construction drilling operations.

Description

Technical Field

[0001] The invention relates to the technical field of highway bridge construction drilling, in particular to a highway bridge construction drilling platform. Background Art

[0002] Highway bridge engineering refers to all the work involved in planning, designing, constructing, maintaining, and repairing structures that cross water areas, valleys, and all traffic passages. Due to the complex geological conditions of highway bridge engineering and the large and important structures, the foundation structure needs to withstand large loads. Therefore, during the construction of highway bridge engineering, for areas where foundations have not yet been established, pile holes are formed in the foundation soil through mechanical drilling, steel pipe squeezing, or manual excavation. Steel cages are placed inside the holes and concrete is poured to provide a solid foundation for the subsequent construction of load-bearing platforms. Depending on the hole-forming method, bored piles can be divided into several categories, including sunken pipe bored piles, bored piles, and excavated bored piles. Existing highway bridge construction drilling platforms have deficiencies in drilling efficiency, adaptability, and accuracy. Especially when faced with drilling tasks requiring complex geological conditions and high precision, the limitations of traditional technology become even more apparent.

[0003] The existing Chinese patent with publication number CN116255084B includes a bracket and an auger installed at the rear end of an engineering vehicle, the bracket is slidingly installed with a lifting plate away from the side wall of the engineering vehicle, a threaded rod with a thread penetrating the lifting plate is rotatably installed on one side of the bracket, the auger is rotatably installed at the bottom end of the lifting plate, the bracket sliding sleeve is provided with a connecting seat penetrated by the threaded rod, the end of the connecting seat away from the bracket is fixedly installed with a guide seat penetrated by the auger, a soil collecting cavity is opened inside the guide seat, a soil cleaning groove is opened at the bottom end of the soil collecting cavity, a rotating ring tube is rotatably installed inside the soil collecting cavity, and symmetrically distributed soil cleaning plates are provided below the rotating ring tube.

[0004] When the above device is in use, the threaded rod is set to drive the auger to drill downward, and the threaded rod simultaneously drives the transmission through the one-way conveying box to rotate, and the rotating ring tube drives the soil cleaning plate to rotate. The soil cleaning plate cleans the soil brought out by the drilling hole. When the soil cleaning plate reaches the soil cleaning trough, the soil will enter the soil cleaning trough, and the soil brought out by the drilling hole can be collected in time for easy cleaning. However, in actual use, due to the hardness of rock formations at different depths, when the drill rod encounters a harder rock formation, the drilling speed is slow, which affects the drilling speed. Therefore, it is difficult to drive the drill rod to move back and forth up and down to crush the rock formation.

[0005] For this reason, we propose a drilling platform for highway bridge construction. Summary of the Invention

[0006] The purpose of the present invention is to provide a highway bridge construction drilling platform, which has the advantage of driving the drill rod to move up and down to break the rock layer, and solves the problems in the background technology.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a highway bridge construction drilling platform, comprising a drilling platform body fixedly mounted on the rear end of an engineering vehicle, one side of the drilling platform body being fixedly connected to an inverted L-shaped frame, and a movable groove being provided on the inverted L-shaped frame, the inner wall of the movable groove being movably connected to a lifting plate for lifting and reciprocating movement, a rotating sleeve being penetrated and rotatably connected to the lifting plate, the inner wall of the lifting plate being lifted and movably connected to an auger rod for drilling, the top end of the inverted L-shaped frame being penetrated and fixedly rotatably connected to a spline shaft driven to reciprocate by a power mechanism, and the bottom end of the spline shaft being penetrated to the inner wall of the auger rod and being lifted and moved, the lifting plate being penetrated and fixedly connected to a cylindrical shell at symmetrical positions on both sides of the rotating sleeve, and the cylindrical shell being provided with a knocking mechanism for driving the auger rod to lift and reciprocate.

[0008] Preferably, the knocking mechanism includes two cylindrical shells, each of which is rotatably connected to a cylindrical sleeve on its outer contour near the end, and an inclined circular plate supporting the spiral drill rod is fixedly connected to the outer contour of the cylindrical sleeve on both sides, and the spiral drill rod is fixedly connected to a support plate on its outer contour near the end, and arc-shaped sliders are fixedly connected at symmetrical positions at both ends of the support plate, and annular grooves supporting the arc-shaped sliders are provided on the outer contours of the inclined circular plates on both sides, and the arc-shaped sliders on both sides respectively penetrate into the inner wall of the annular groove on the adjacent side and are movably connected.

[0009] Preferably, a first gear that drives the cylindrical sleeve to rotate is fixedly connected to the outer contour of the rotating sleeve near the end, and a second gear that meshes with the first gear is fixedly connected to the outer contours of the cylindrical sleeves on both sides.

[0010] Preferably, the inverted L-shaped frame is provided with an adjustment mechanism for adjusting the drilling depth of the spiral drill rod, and the adjustment mechanism includes a threaded rod on the inverted L-shaped frame that passes through the inner wall of the movable groove and is connected to a fixed axis to drive the lifting plate to perform lifting and movement adjustment, and a threaded sleeve is passed through and fixedly connected on the lifting plate, and the threaded sleeve is sleeved on the outer contour of the threaded rod and screwed.

[0011] Preferably, the end of the spline shaft is coaxially fixedly connected to a second pulley that drives the threaded rod to rotate back and forth on a fixed axis, and the end of the threaded rod is coaxially fixedly connected to a first pulley at a position corresponding to the second pulley, and a transmission belt that drives the threaded rod to rotate back and forth on a fixed axis is sleeved in a sliding groove on the outer contour of the second pulley and the first pulley.

[0012] Preferably, the drilling platform body is provided with a dust reduction mechanism for reducing dust around the borehole, the dust reduction mechanism includes a water tank for storing water fixedly connected to the drilling platform body, the two cylindrical shells are penetrated and fixedly connected at symmetrical positions on both sides near the bottom end, the bottom ends of the water inlet pipes on both sides are penetrated to the inner wall of the water tank and fixedly connected, the bottom of the drilling platform body is fixedly connected to a fixing ring, the fixing ring is penetrated and fixedly connected at symmetrical positions on both sides of the fixing ring, and the bottom ends of the drainage pipes on both sides are respectively penetrated to the inner wall of the atomizing nozzle on the adjacent side and fixedly connected.

[0013] Preferably, the inner walls of the cylindrical shells on both sides are connected to piston plates that can be lifted and moved to extract and discharge water from the water tank. Pull rods are fixedly connected to the piston plates on both sides, and the ends of the two pull rods away from the piston plates are fixedly connected to the support plates. The inner walls of the water inlet pipe and the drain pipe on each side close to one end of the cylindrical shell are fixedly connected to a one-way liquid inlet valve and a one-way liquid discharge valve.

[0014] Preferably, the bottom end of the fixed ring is rotatably connected to a third gear, and the bottom of the third gear is fixedly connected to a plurality of bulldozer plates for moving the crushed soil around the drill hole, and the bulldozer plates are evenly placed on the third gear, and the bottom end of the threaded rod is coaxially fixedly connected to a fourth gear that drives the first pulley to rotate, and the teeth on the fourth gear and the third gear are engaged with each other.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the cooperation of the cylindrical sleeve, the inclined circular plate, the arc-shaped slider and the gear transmission, the spiral drill rod can be lifted and reciprocated, and the rock formation is struck back and forth, and the impact force is applied to the rock surface to cause the rock formation to break. Compared with the traditional single rotary drilling, it can more effectively break the harder rock formation, speed up the drilling speed, and significantly improve the drilling efficiency. Especially when facing rock formations of different depths and hardness, the advantages are more obvious, and it can effectively solve the problem of slow drilling speed of traditional drilling methods when encountering hard rock formations. At the same time, because the striking mechanism can drive the spiral drill rod to perform regular lifting and reciprocating movements, the force on the drill rod during the drilling process is more uniform, avoiding the situation where the local wear of the drill rod is too fast due to long-term single-direction rotary drilling, thereby effectively extending the service life of the spiral drill rod and reducing construction costs.

[0017] Second, the threaded connection between the threaded rod and the threaded sleeve, along with the graduated lines on the inverted L-shaped frame, precisely controls the lifting distance of the lifting plate and auger rod, enabling precise adjustment of the drilling depth. Construction personnel can intuitively observe and adjust the drilling depth based on the graduated lines, ensuring that the drilling depth strictly meets design requirements. This improves drilling accuracy and quality, and is crucial for strict control of drilling depth during highway bridge foundation construction.

[0018] 3. Through the cooperation of water tank, water inlet pipe, drainage pipe, atomizing nozzle, piston plate, pull rod and one-way valve, the water source is atomized and sprayed to the drill hole, which can timely and effectively deal with the dust generated in the drilling process. This not only reduces the pollution of dust to the surrounding environment, avoids the situation of dust flying all over the construction site, but also reduces the harm caused by dust to the health of construction workers, providing construction workers with a cleaner and healthier working environment, which meets the requirements of modern construction for environmental protection and occupational health. At the same time, a good construction environment also helps to improve the work efficiency and construction quality of construction workers, thereby indirectly reducing construction costs and improving the economic benefits of the entire project.

[0019] Fourth, the bulldozer plate is driven by the third gear at the bottom end of the fixed ring to perform circular motion, guiding the broken soil at the drill hole to the outside, effectively avoiding the broken soil from backfilling into the drill hole. During the drilling construction process, if the broken soil is backfilled, it will not only affect the depth and quality of the drill hole, but may also cause accidents such as drill rod jamming. The movement of the bulldozer plate ensures the cleanliness and smooth flow of the drill hole, providing good conditions for subsequent construction processes such as steel cage placement and concrete pouring, ensuring the smooth progress of construction, and then timely moving the broken soil at the drill hole to prevent the broken soil from accumulating around the drill hole and affecting the passage and operation of construction workers, reducing the probability of safety accidents such as falls and slips caused by the sliding and accumulation of broken soil, improving the safety of the construction site, and providing better protection for the personal safety of construction workers.

[0020] The coordinated use of the above-mentioned structure solves the problem that in actual use of the existing device, due to the hardness of rock layers at different depths, when the drill rod encounters a harder rock layer, the drilling speed is slow, thereby affecting the drilling speed, and it is difficult to drive the drill rod to move up and down to crush the rock layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a cross-sectional schematic diagram of the three-dimensional mechanism of the present invention;

[0023] Figure 3This is a schematic diagram of the three-dimensional structure of the rotating sleeve of the present invention;

[0024] Figure 4 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0025] Figure 5 For the present invention Figure 3 Schematic diagram of the structure at B in the middle;

[0026] Figure 6 This is a schematic cross-sectional view of the three-dimensional structure of the cylindrical shell of the present invention;

[0027] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at C in the middle;

[0028] Figure 8 This is a schematic diagram of the three-dimensional structure of the third gear of the present invention.

[0029] In the figure: 1. Drilling platform body; 2. Inverted L-shaped frame; 202. Movable groove; 3. Lifting plate; 4. Rotating sleeve; 5. Auger rod; 6. Spline shaft; 7. Cylindrical shell; 8. Cylindrical sleeve; 9. Inclined circular plate; 901. Annular groove; 10. Support plate; 11. Arc-shaped slider; 12. First gear; 13. Second gear; 14. Threaded rod; 15. Threaded sleeve block; 16. First pulley; 17. Second pulley; 18. Drive belt; 19. Water tank; 20. Water inlet pipe; 201. One-way liquid inlet valve; 21. Drain pipe; 211. One-way liquid discharge valve; 22. Fixed ring; 23. Atomizing nozzle; 24. Pull rod; 25. Piston plate; 26. Third gear; 27. Bulldozer plate; 28. Fourth gear. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] For example 1, please refer to Figures 1 to 8The present invention provides a technical solution: a highway bridge construction drilling platform, comprising a drilling platform body 1 fixedly mounted on the rear end of an engineering vehicle, one side of the drilling platform body 1 is fixedly connected to an inverted L-shaped frame 2, and the inverted L-shaped frame 2 is provided with a movable groove 202, the inner wall of the movable groove 202 is movably connected with a lifting plate 3 for lifting and reciprocating movement, the lifting plate 3 is penetrated and rotatably connected with a rotating sleeve 4, the inner wall of the lifting plate 3 is lifted and movably connected with an auger rod 5 for drilling, the top end of the inverted L-shaped frame 2 is penetrated and fixedly connected to a spline shaft rod 6 driven by a power mechanism to reciprocate, and the bottom end of the spline shaft rod 6 penetrates the inner wall of the auger rod 5 and is lifted and moved. The lifting plate 3 is penetrated and fixedly connected with a cylindrical shell 7 at symmetrical positions on both sides of the rotating sleeve 4, and the cylindrical shell 7 is provided with a knocking mechanism that drives the auger rod 5 to lift and reciprocate.

[0032] When in use, by setting the drilling platform body 1, the drilling platform body 1 is installed at the tail end of the engineering vehicle, so that the engineering vehicle can move the drilling platform body 1 to the drilling area, and the inverted L-shaped frame 2 is provided on the drilling platform body 1, and the inverted L-shaped frame 2 is fixedly supported on the drilling platform body 1, and the movable groove 202 opened on the inverted L-shaped frame 2 and the lifting plate 3 provided on the movable groove 202 can make the lifting plate 3 move up and down on the inner wall of the movable groove 202, and the rotating sleeve 4 provided on the lifting plate 3 can be rotatably supported on the lifting plate 3, and the spiral drill rod 5 provided on the lifting plate 3 and the spline shaft 6 provided on the inverted L-shaped frame 2 are connected to the inner wall of the spiral drill rod 5 for lifting and movement, and the spline shaft 6 is driven to rotate by the motor, so that the motor can drive the spiral drill rod 5 to synchronously rotate back and forth on a fixed axis through the spline shaft 6, thereby driving the spiral drill rod 5 to rotate for drilling operation.

[0033] The auger rod 5 is connected to the inner wall of the rotating sleeve 4 for lifting and moving, so that the auger rod 5 can drive the rotating sleeve 4 to rotate on the lifting plate 3. The cylindrical shell 7 is fixedly supported on the lifting plate 3 through the cylindrical shell 7 provided on the lifting plate 3, and the knocking mechanism provided on the cylindrical shell 7 can drive the auger rod 5 to knock the rock formation back and forth, so that the auger rod 5 can crush the rock formation, thereby improving the drilling efficiency of the auger rod 5.

[0034] Example 2, based on Example 1, further:

[0035] The knocking mechanism includes two cylindrical shells 7, on the outer contours of which are close to the ends, cylindrical sleeves 8 are rotatably connected. The outer contours of the cylindrical sleeves 8 on both sides are fixedly connected with inclined circular plates 9 for supporting the auger rod 5. The outer contours of the auger rod 5 close to the ends are fixedly connected with support plates 10. Arc-shaped sliders 11 are fixedly connected at symmetrical positions at both ends of the support plates 10. Annular grooves 901 for supporting the arc-shaped sliders 11 are provided on the outer contours of the inclined circular plates 9 on both sides. The arc-shaped sliders 11 on both sides respectively penetrate the inner walls of the annular grooves 901 on the adjacent sides and are movably connected.

[0036] A first gear 12 is fixedly connected to the outer contour of the rotating sleeve 4 near the end thereof for driving the cylindrical sleeve 8 to rotate, and a second gear 13 is fixedly connected to the outer contour of the cylindrical sleeve 8 on both sides for meshing transmission with the first gear 12 .

[0037] During use, the cylindrical sleeve 8 provided on the cylindrical shell 7 is used to enable the cylindrical sleeve 8 to be rotatably connected on the outer contour of the cylindrical shell 7, and the inclined circular plate 9 provided on the cylindrical sleeve 8 fixes and supports the inclined circular plate 9 on the cylindrical sleeve 8. The support plate 10 provided on the auger rod 5 can be sleeved on the outer contour of the auger rod 5 and rotatably connected. The annular groove 901 opened on the inclined circular plate 9 and the arc-shaped slider 11 provided on the support plate 10 can support the arc-shaped slider 11 movably on the inner wall of the annular groove 901. At the same time, the arc-shaped slider 11 can support the support plate 10 under the action of the annular groove 901, so that the auger rod 5 can rotate on a fixed axis on the inner wall of the support plate 10.

[0038] When drilling, the first gear 12 provided on the rotating sleeve 4 is used to rotate the rotating sleeve 4 as the auger rod 5 drives the rotating sleeve 4 to rotate, so that the rotating sleeve 4 can drive the first gear 12 to rotate synchronously, and the second gear 13 provided on the cylindrical sleeve 8 is meshed with the teeth on the second gear 13 and the first gear 12, so that the second gear 13 can drive the cylindrical sleeve 8 to rotate synchronously on the outer contour of the cylindrical shell 7 under the action of the first gear 12, and the cylindrical sleeve 8 can drive the inclined circular plate 9 to rotate, and the inclined circular plate 9 is placed obliquely on the cylindrical sleeve 8, and then the arc slider 11 can pull the auger rod 5 to move up and down through the support plate 10 under the action of the annular groove 901, so that the auger rod 5 can reciprocate and knock on the rock formation, and the auger rod 5 can apply impact force to the surface of the rock formation, causing the rock formation to break, thereby further improving the efficiency of drilling.

[0039] Example 3, based on Example 2, further comprises:

[0040] The inverted L-shaped frame 2 is provided with an adjustment mechanism for adjusting the drilling depth of the spiral drill rod 5. The adjustment mechanism includes a threaded rod 14 on the inverted L-shaped frame 2 that passes through the inner wall of the movable groove 202 and is connected to a fixed axis to drive the lifting plate 3 to perform lifting and movement adjustment. A threaded sleeve 15 is passed through and fixedly connected to the lifting plate 3. The threaded sleeve 15 is sleeved on the outer contour of the threaded rod 14 and is screwed.

[0041] The end of the spline shaft 6 is coaxially fixedly connected to a second pulley 17 that drives the threaded rod 14 to rotate back and forth on a fixed axis. The end of the threaded rod 14 is coaxially fixedly connected to a first pulley 16 at a position corresponding to the second pulley 17. A transmission belt 18 that drives the threaded rod 14 to rotate back and forth on a fixed axis is sleeved in a sliding groove on the outer contour of the second pulley 17 and the first pulley 16.

[0042] When in use, the threaded rod 14 provided on the inverted L-shaped frame 2 is used to enable the threaded rod 14 to be connected to the inverted L-shaped frame 2 for fixed-axis rotation. The second pulley 17 provided on the spline shaft 6 is coaxially fixedly connected to the spline shaft 6, so that the spline shaft 6 can drive the second pulley 17 to synchronously rotate back and forth on the fixed axis. The first pulley 16 provided on the threaded rod 14 and the transmission belt 18 provided on the first pulley 16 and the second pulley 17 are sleeved in the slide groove on the outer contour of the first pulley 16 and the second pulley 17. As the spline shaft 6 drives the second pulley 17, the first pulley 16 and the second pulley 17 are driven by the spline shaft 6. The pulley 17 rotates back and forth on a fixed axis, so that the transmission belt 18 can drive the first pulley 16 and the threaded rod 14 to rotate back and forth on a fixed axis synchronously on the inverted L-shaped frame 2 under the action of the second pulley 17. Through the threaded sleeve 15 provided on the lifting plate 3, and the threaded sleeve 15 is sleeved on the outer contour of the threaded rod 14 and screwed, as the threaded rod 14 rotates back and forth on a fixed axis, the threaded sleeve 15 can drive the lifting plate 3 to move up and down and back and forth on the inner wall of the movable groove 202 under the action of the threaded rod 14. At the same time, the lifting plate 3 can drive the auger rod 5 to move up and down and back and forth synchronously on the spline shaft 6.

[0043] And the radius of the first pulley 16 is greater than the radius of the second pulley 17. When the spline shaft 6 drives the auger rod 5 to drill, the lifting plate 3 can drive the auger rod 5 to move slowly in the downward vertical direction, so that the lifting plate 3 can drive the auger rod 5 to move downward for drilling construction, and a scale line is set on one side of the inverted L-shaped frame 2 so that personnel can intuitively see the drilling depth of the auger rod 5, further improving the drilling accuracy of the auger rod 5.

[0044] When the drilling is completed, the above structure is reset and moved in the opposite direction, and then the lifting plate 3 can pull the auger rod 5 to reset and move upward out of the drill hole.

[0045] Example 4, based on Example 3, further:

[0046] The drilling platform body 1 is provided with a dust reduction mechanism for reducing dust around the borehole, and the dust reduction mechanism includes a water tank 19 for storing water fixedly connected to the drilling platform body 1, and the two cylindrical shells 7 are penetrated and fixedly connected at symmetrical positions on both sides near the bottom end, with a water inlet pipe 20 and a drain pipe 21, the bottom ends of the water inlet pipes 20 on both sides are penetrated to the inner wall of the water tank 19 and fixedly connected, and a fixing ring 22 is fixedly connected to the bottom of the drilling platform body 1, and the fixing ring 22 is penetrated and fixedly connected at symmetrical positions on both sides with an atomizing nozzle 23 for atomizing and spraying water to the borehole, and the bottom ends of the drain pipes 21 on both sides are respectively penetrated to the inner wall of the atomizing nozzle 23 on the adjacent side and fixedly connected.

[0047] The inner walls of the cylindrical shell 7 on both sides are connected to the piston plate 25 for extracting and discharging the water source inside the water tank 19, and the piston plates 25 on both sides are fixedly connected to the pull rods 24. The ends of the two pull rods 24 away from the piston plates 25 are fixedly connected to the support plate 10. The inner walls of the water inlet pipe 20 and the drain pipe 21 on each side close to one end of the cylindrical shell 7 are fixedly connected to a one-way liquid inlet valve 201 and a one-way liquid discharge valve 211.

[0048] During use, the water tank 19 provided on the drilling platform body 1 is filled with water, and the water inlet pipe 20 and the drain pipe 21 provided on the cylindrical shell 7 are connected to the inner wall of the cylindrical shell 7. At the same time, the water inlet pipe 20 can connect the water tank 19 with the inner wall of the cylindrical shell 7. The fixing ring 22 provided on the drilling platform body 1 is fixedly supported on the bottom of the drilling platform body 1, and the atomizing nozzle 23 provided on the fixing ring 22 can enable the drain pipe 21 to connect the atomizing nozzle 23 with the inner wall of the cylindrical shell 7.

[0049] By means of the piston plate 25 provided on the cylindrical shell 7, and the piston plate 25 fitting with the inner wall of the cylindrical shell 7, the piston plate 25 is connected to and lifted on the inner wall of the cylindrical shell 7. By means of the pull rod 24 provided on the piston plate 25, the two ends of the pull rod 24 are fixedly supported on the piston plate 25 and the support plate 10 respectively. As the support plate 10 drives the auger rod 5 to move up and down reciprocatingly, the pull rod 24 can pull the piston plate 25 to move up and down synchronously on the inner wall of the cylindrical shell 7 under the action of the support plate 10. By means of the one-way liquid inlet valve 201 and the one-way liquid discharge valve 211 provided on the water inlet pipe 20 and the drain pipe 21, when the pull rod 24 pulls the piston plate 25 toward the end away from the water inlet pipe 20, the internal air pressure of the cylindrical shell 7 near the end of the water inlet pipe 20 is In the negative pressure state, the one-way liquid inlet valve 201 is in the open state and the one-way liquid discharge valve 211 is in the closed state, so that the water inlet pipe 20 can quantitatively extract the water source inside the water tank 19 to the inner wall of the cylindrical shell 7. When the pull rod 24 pushes the piston plate 25 to move toward the end close to the water inlet pipe 20, and the internal air pressure of the cylindrical shell 7 close to the end of the water inlet pipe 20 is positive pressure, the one-way liquid inlet valve 201 is in the closed state and the one-way liquid discharge valve 211 is in the open state, then the drain pipe 21 can discharge the water source inside the cylindrical shell 7 to the inner wall of the atomizing nozzle 23, and the atomizing nozzle 23 can atomize the water source and spray it to the drill hole, so that the water mist can reduce the dust at the drill hole, avoiding the problem of dust polluting the air, causing inhalation by surrounding people, and causing harm to the body.

[0050] Example 5, based on Example 4, further:

[0051] The bottom end of the fixing ring 22 is rotatably connected to a third gear 26, and the bottom of the third gear 26 is fixedly connected to a plurality of bulldozers 27 for moving the crushed soil around the drill hole, and the bulldozers 27 are evenly placed on the third gear 26. The bottom end of the threaded rod 14 is coaxially fixedly connected to a fourth gear 28 that drives the first pulley 16 to rotate, and the fourth gear 28 is meshed with the teeth on the third gear 26.

[0052] When in use, the third gear 26 provided on the fixing ring 22 is rotatably connected to the bottom end of the fixing ring 22, and the bulldozer 27 provided on the third gear 26 fixes the bulldozer 27 on the third gear 26, and the fourth gear 28 is provided on the threaded rod 14, and the fourth gear 28 is coaxially fixedly connected to the threaded rod 14, so that the threaded rod 14 can drive the fourth gear 28 to rotate synchronously, accompanied by the meshing transmission of the fourth gear 28 and the third gear 26, so that the third gear 26 can drive the bulldozer 27 to perform a circular motion at the drill hole under the action of the fourth gear 28, and the bulldozer 27 is placed obliquely on the third gear 26, so that the bulldozer 27 can guide the broken soil at the drill hole toward the outside, avoiding the problem of backfilling of the broken soil at the drill hole.

[0053] Furthermore, the existing device can drive the drill rod to move up and down to break the rock layer during actual use, thereby improving the efficiency of drilling and being easy to use, which is better than traditional products.

[0054] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and drawings can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description will be given here.

[0055] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A drilling platform for highway bridge construction, characterized by: The invention comprises a drilling platform body (1) fixedly mounted on the rear end of an engineering vehicle, wherein one side of the drilling platform body (1) is fixedly connected to an inverted L-shaped frame (2), and a movable groove (202) is provided on the inverted L-shaped frame (2), and the inner wall of the movable groove (202) is movably connected to a lifting plate (3) for lifting and reciprocating movement, a rotating sleeve (4) is penetrated and rotatably connected to the lifting plate (3), and the inner wall of the lifting plate (3) is lifted and movably connected to a spiral drill rod (5) for drilling, and the top end of the inverted L-shaped frame (2) is penetrated and fixedly rotatably connected to a spline shaft (6) driven to reciprocate by a power mechanism, and the bottom end of the spline shaft (6) penetrates the inner wall of the spiral drill rod (5) and is lifted and movably connected, and cylindrical shells (7) are penetrated and fixedly connected at symmetrical positions on both sides of the lifting plate (3) near the rotating sleeve (4), and a knocking mechanism is provided on the cylindrical shell (7) for driving the spiral drill rod (5) to lift and reciprocate; The knocking mechanism comprises two cylindrical shells (7) with cylindrical sleeves (8) rotatably connected on their outer contours near the ends, the outer contours of the cylindrical sleeves (8) on both sides are fixedly connected with inclined circular plates (9) for supporting the auger rod (5), the outer contour of the auger rod (5) near the ends is connected with a support plate (10), and arc-shaped sliders (11) are fixedly connected at symmetrical positions at both ends of the support plate (10), and annular grooves (901) for supporting the arc-shaped sliders (11) are formed on the outer contours of the inclined circular plates (9) on both sides, and the arc-shaped sliders (11) on both sides respectively penetrate the inner wall of the annular groove (901) on the adjacent side and are movably connected.

2. A highway bridge construction drilling platform according to claim 1, characterized in that: A first gear (12) is fixedly connected to the outer contour of the rotating sleeve (4) near the end thereof for driving the cylindrical sleeve (8) to rotate, and a second gear (13) is fixedly connected to the outer contours of the cylindrical sleeves (8) on both sides for meshing transmission with the first gear (12).

3. A highway bridge construction drilling platform according to claim 2, characterized in that: The inverted L-shaped frame (2) is provided with an adjustment mechanism for adjusting the drilling depth of the spiral drill rod (5), the adjustment mechanism comprising a threaded rod (14) on the inverted L-shaped frame (2) that passes through the inner wall of the movable groove (202) and is connected to the lifting plate (3) for lifting and moving adjustment, and a threaded sleeve (15) is passed through and fixedly connected to the lifting plate (3), and the threaded sleeve (15) is sleeved on the outer contour of the threaded rod (14) and is screwed.

4. A highway bridge construction drilling platform according to claim 3, characterized in that: The end of the spline shaft (6) is coaxially fixedly connected to a second pulley (17) for driving the threaded rod (14) to perform fixed-axis reciprocating rotation. The end of the threaded rod (14) is coaxially fixedly connected to a first pulley (16) at a position corresponding to the second pulley (17). A transmission belt (18) for driving the threaded rod (14) to perform fixed-axis reciprocating rotation is sleeved in a sliding groove on the outer contour of the second pulley (17) and the first pulley (16).

5. A highway bridge construction drilling platform according to claim 4, characterized in that: The drilling platform body (1) is provided with a dust reduction mechanism for reducing dust around the borehole, the dust reduction mechanism comprising a water tank (19) for storing a water source fixedly connected to the drilling platform body (1), a water inlet pipe (20) and a drain pipe (21) are penetrated and fixedly connected at symmetrical positions on both sides of the two cylindrical shells (7) near the bottom end, the bottom ends of the water inlet pipes (20) on both sides are penetrated to the inner wall of the water tank (19) and fixedly connected, a fixing ring (22) is fixedly connected to the bottom of the drilling platform body (1), and atomizing nozzles (23) for atomizing and spraying water to the borehole are penetrated and fixedly connected at symmetrical positions on both sides of the fixing ring (22), and the bottom ends of the drain pipes (21) on both sides are respectively penetrated to the inner wall of the atomizing nozzle (23) on the adjacent side and fixedly connected.

6. A highway bridge construction drilling platform according to claim 5, characterized in that: The inner walls of the cylindrical shells (7) on both sides are connected to piston plates (25) for extracting and discharging water from the water tank (19) in a lifting and moving manner. Pull rods (24) are fixedly connected to the piston plates (25) on both sides. The ends of the two pull rods (24) away from the piston plates (25) are fixedly connected to the support plate (10). The inner walls of the water inlet pipe (20) and the drain pipe (21) on each side close to one end of the cylindrical shell (7) are fixedly connected to a one-way liquid inlet valve (201) and a one-way liquid discharge valve (211).

7. A highway bridge construction drilling platform according to claim 6, characterized in that: The bottom end of the fixing ring (22) is rotatably connected to a third gear (26), and the bottom of the third gear (26) is fixedly connected to a plurality of bulldozers (27) for moving crushed soil around the drill hole, and the bulldozers (27) are evenly placed on the third gear (26). The bottom end of the threaded rod (14) is coaxially fixedly connected to a fourth gear (28) for driving the first pulley (16) to rotate, and the teeth on the fourth gear (28) and the third gear (26) are meshed with each other.

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