All-steel pile casing device for socketed pile under complex landform and construction method

Abstract

The invention provides a rock-socketed pile all-steel pile casing device under a complex landform and a construction method. The rock-socketed pile all-steel pile casing device comprises rotary excavating equipment, a lifting and swinging mechanism, a clamping mechanism, a clamping assembly and a plurality of pile casings which are spliced up and down; an overturning frame is arranged on the rotary excavating equipment in a transmission manner and is connected with a rotary excavating drill bit assembly; the lifting and swinging mechanism comprises a lifting mechanism, an arc-shaped plate and a swinging mechanism, the lifting mechanism is arranged in the overturning frame, and the lifting mechanism is connected with the arc-shaped plate; before use, the rotary excavating drill bit assembly is sleeved with the pile casings firstly, then when the rotary excavating drill bit assembly conducts punching, the pile casing on the lowest side is placed in a hole and then clamped, the pile casings can be screwed into soil under the action of the lifting mechanism and the swing mechanism, if splicing is needed, the pile casings on the upper side are split firstly, then the pile casings on the lower side are detached, and the pile casings on the lower side are detached. And then the rotary excavating drill bit assembly is spliced and overlapped with the pile casing on the lower side, so that the rotary excavating drill bit assembly does not need to be pulled out for splicing, and the construction efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of casing follow-up for rotary drilling rigs, in particular to a full-steel casing device and a construction method for rock-embedded piles under complex terrain. Background Art

[0002] Rotary drilling is a construction technology suitable for drilling holes in building foundation projects. It is widely used in municipal construction, highway bridges, high-rise buildings and other foundation construction projects. With different drilling tools, it is suitable for dry, wet and rock drilling operations.

[0003] The patent with the publication number of CN220522473U discloses a full casing follow-up rotary drilling rig. The utility model installs a penetration ring and a screw-in block at the lower part of the cylinder, so that when the cylinder rotates and moves downward, the smaller diameter part of the lower part of the penetration ring rotates downward like a drill bit during rotation. At the same time, the circumferentially distributed screw-in blocks, under the action of their inclined surfaces, will splash the soil outside the penetration ring when rotating. Under the joint action of the two, the cylinder can dig the land with great effort to improve the use effect and digging efficiency of the device; the patent with the publication number of CN219315718U discloses a pile foundation casing that can be spliced. When in use, the spliced ​​pile foundation casing can be made into a plurality of middle casings of different heights according to the needs of pile foundation construction; the spliced ​​pile foundation casing can be spliced ​​to the required depth according to actual needs; the spliced ​​pile foundation casing can be hoisted and installed in sections, and the splicing method is simple and easy to operate.

[0004] Although the above patent can solve the problem that the casing can be better excavated, and the casing is spliced ​​to facilitate operation and transportation, it still has the following disadvantages: during the screwing process of the casing, the casing needs to be spliced ​​and stacked according to actual needs, but in the stacking process, the rotary drilling rig needs to be taken out of the casing before the casings can be spliced. Frequent and repeated operations require multiple casings to be spliced ​​and stacked, resulting in cumbersome operation. Summary of the invention

[0005] The purpose of the present invention is to provide a full-steel casing device and construction method for rock-embedded piles under complex terrain, aiming to solve the problem in the prior art that the rotary drilling rig must be taken out of the casing before the casings can be spliced, resulting in a cumbersome operation process.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: the all-steel casing device and construction method of rock-embedded piles under complex terrain include rotary drilling equipment, the lifting and swinging mechanism, the clamping mechanism, the clamping assembly, and a plurality of casings spliced ​​up and down; The rotary drilling device is provided with a flip frame, and the flip frame is connected to the rotary drilling drill bit assembly; The lifting and swinging mechanism comprises a lifting mechanism, an arc plate and a swinging mechanism. The lifting mechanism is arranged in the flip frame, and the lifting mechanism is connected to the arc plate, so that the arc plate moves up and down along the flip frame; the swinging mechanism is arranged on the arc plate, and the swinging mechanism is connected to the clamping mechanism, so that the clamping casing rotates with the rotary drill bit assembly as the axis; The casing comprises a barrel, an L-shaped clamping block and an L-shaped clamping slot block, the barrel is sleeved on the rotary drill bit assembly, the uppermost barrel is arranged on the flip frame, the L-shaped clamping block is fixedly arranged on the inner side wall of the bottom of the barrel, the L-shaped clamping slot block is fixedly arranged on the inner side wall of the top of the barrel, the clamping assembly is arranged in the L-shaped clamping slot block, the L-shaped clamping block is inserted into the L-shaped clamping slot block, and under the action of the clamping assembly, the L-shaped clamping block is clamped in the L-shaped clamping slot block; When the cylinder body above the clamping mechanism rotates under the drive of the swing mechanism, the L-shaped clamping block can be separated from the L-shaped clamping slot block, so that the two upper and lower adjacent casings can be separated; The clamping mechanism clamps the cylinder below, and under the cooperation of the swing mechanism and the lifting mechanism, the cylinder below can be rotated and moved into the hole.

[0007] Preferably, the clamping assembly includes a first spring and a top block; the first spring is fixedly arranged on the inner side wall of the L-shaped slot block, and the other end of the first spring is fixedly connected to the top block, so that the top block moves in the L-shaped slot block; The L-shaped card block is inserted into the L-shaped card slot block, and the push block pushes the L-shaped card block into the L-shaped card slot block under the action of the first spring.

[0008] Preferably, the lifting mechanism includes a lead screw and a first drive device, the lead screw is arranged in the flip frame and rotates along the extension direction of the flip frame, the first drive device is fixed on the inner top wall of the flip frame, the first drive device is connected to the lead screw in transmission, and the arc plate is mounted on the lead screw and is threadedly connected to the lead screw.

[0009] Preferably, the swing mechanism comprises an arc-shaped rack, a first gear and a second driving device; a limiting groove is provided on the arc plate; The arc-shaped rack is fixed in the limiting groove, the second driving device is slidably arranged in the limiting groove, the output end of the second driving device is transmission connected with the first gear, the first gear is meshed with the arc-shaped rack, a limiting arc-shaped groove is provided in the limiting groove, and the first gear is slidably arranged in the limiting arc-shaped groove.

[0010] Preferably, the first gear rotating sleeve is provided with a connecting rod, and the connecting rod is connected to the clamping mechanism, so that the clamping mechanism moves forward and backward along the limiting groove; The arc-shaped plate is fixedly provided with a bearing plate away from the flip frame, the bearing plate is provided with a limiting sliding groove, the connecting rod is fixedly provided with a limiting pin, and the limiting pin is slidably arranged in the limiting sliding groove.

[0011] Preferably, the clamping mechanism comprises a fixing plate, a telescopic device and two clamping plates symmetrically arranged front and back; the fixing plate is fixedly connected to the connecting rod; The telescopic device is fixed on a fixed plate, a limiting slide rail is fixed on the fixed plate, two sliding blocks spaced apart from each other are slidably provided on the limiting slide rail, and the sliding blocks are fixedly connected to the clamping plate.

[0012] Preferably, the end surface of the movable rod of the telescopic device is hingedly connected to one of the sliding blocks, the end surface of the fixed rod of the telescopic device is fixedly provided with a telescopic sleeve rod, the telescopic sleeve rod is hingedly connected to the other sliding block, and the two sliding blocks are connected by a connecting rod assembly so that the two sliding blocks move in relative or opposite directions.

[0013] Preferably, the connecting rod assembly includes an inclined rod and a swing rod; the swing rod is rotatably arranged on the top of the fixed plate, each of the sliding blocks is hingedly connected to the inclined rod, and the other end of the inclined rod is hingedly connected to the swing rod.

[0014] Preferably, the rotary drilling bit assembly includes a third driving device, a spiral cutter head, a third telescopic device and a fixed traction member; the fixed traction member is fixedly arranged on the flip frame, the third driving device is fixedly arranged at the bottom of the fixed traction member, a fixed block is fixedly arranged on the flip frame, the output end of the third driving device passes through the fixed block and is transmission-connected with the third telescopic device, the spiral cutter head is fixedly arranged at the bottom of the movable rod of the third telescopic device, and the bottom of the fixed block is clamped with the uppermost casing.

[0015] Preferably, the specific operations are as follows: S1, according to the height control points provided by the owner, carry out dense layout to ensure the visibility of the building axis points under the dense points; S2, move the rotary drilling equipment to the vicinity of the rotary hole and flip the frame vertically to the ground; S3, first clamp the uppermost casing on the fixed block, then splice and clamp the casings together in sequence, and sleeve the spliced ​​casings on the rotary drilling bit assembly; S4, driving the third driving device and the third telescopic device to start, so that the spiral cutter head can be rotated into the soil; S5, clamp the upper casing by the clamping mechanism, then drive the swing mechanism to start, so that the lower casing is separated from it. After the separation is completed, the arc plate is driven downward by the lifting mechanism to place the lower casing in the hole opened by the spiral cutter head; S6, after the lowermost casing is placed in the hole, the clamping mechanism does not release the casing, and then the lowermost casing can be screwed into the hole under the action of the swing mechanism and the clamping mechanism, and stops when the lowermost casing cannot be clamped; S7, repeating the operations of S5-S6, splicing and superimposing the split casing on the casing below, and clamping the casing and screwing it into the hole; S8, when the casing is lowered to a height that meets the requirements, the screwing is stopped, the spiral cutter head is pulled out of the hole, the steel cage is lowered, and concrete is poured; S9, driving the lifting mechanism to move, so that the clamping mechanism clamps the casing and pulls the casing out of the hole.

[0016] The beneficial effects are: 1. Before use, the casing is first put on the rotary drill bit assembly, and then when the rotary drill bit assembly is drilling, the lowermost casing is first placed in the hole, and then the casing is clamped. Under the action of the lifting mechanism and the swing mechanism, the casing can be rotated into the soil. If splicing is required, the upper casing is first split, and then spliced ​​and superimposed with the lower casing, so that there is no need to pull out the rotary drill bit assembly and then splice, which greatly improves the construction efficiency.

[0017] 2. The casing can be clamped by the clamping mechanism, and then the swinging mechanism can drive the clamping mechanism to rotate, so that the clamping mechanism can clamp the casing and rotate it, so as to facilitate the disassembly of the casings. Then the lifting mechanism is driven to start, so that the lifting mechanism can drive the arc plate to move up and down along the flip frame, so that the height of the clamped casing can be adjusted, so that the casing stored on the upper side can be disassembled and moved to the lower side, and assembled with the casing on the lower side, so that the length of the casing can be adjusted according to needs, which greatly improves the practicality.

[0018] 3. Under the action of the clamping assembly, when the L-shaped clamping block is inserted into the L-shaped clamping slot block, the L-shaped clamping block can be pushed into the L-shaped clamping slot block under the action of the first spring and the push block to improve the connection stability between the casings, and when the casings are removed from each other, the clamped casing can be driven to rotate through the swing mechanism to squeeze the first spring, so that the L-shaped clamping block is separated from the L-shaped clamping slot block, thereby achieving the effect of removing adjacent casings.

[0019] 4. The auxiliary support rod is set up to share the bearing capacity of the fixed block, and can also provide limit support for the up and down movement of the arc plate, which greatly improves the firmness of the device and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a clamping mechanism clamping an upper casing in a specific embodiment of the present invention; Figure 2 It is a structural schematic diagram of a clamping mechanism clamping a casing to move in a specific embodiment of the present invention; Figure 3 It is a structural schematic diagram of a clamping mechanism clamping a casing and splicing a lower casing in a specific embodiment of the present invention; Figure 4 It is a schematic diagram of the structure of the clamping mechanism and the upper casing adapted to each other in a specific embodiment of the present invention; Figure 5 is a schematic structural diagram of a partial cross-section of a flip frame in a specific embodiment of the present invention; Figure 6 It is a structural schematic diagram of the casing splitting in a specific embodiment of the present invention; Figure 7 is a schematic structural diagram of a partial cross-section of an L-shaped card slot block in a specific embodiment of the present invention; Figure 8 It is a structural schematic diagram of the swing mechanism drive in a specific embodiment of the present invention; Fig. 9 is a schematic structural diagram of the clamping mechanism driving in a specific embodiment of the present invention; Fig.10 is a structural schematic diagram of a specific embodiment of the present invention in which a bearing plate is installed on a curved plate; Fig.11 It is a structural schematic diagram of the operation process in a specific embodiment of the present invention; Fig.12 is a schematic structural diagram of auxiliary support by auxiliary support rods in a specific embodiment of the present invention; Fig.13 is a schematic diagram of the structure of the curved plate without the support plate installed in a specific embodiment of the present invention; Fig.14 It is a schematic diagram of the process of clamping the casing and driving the swing mechanism to rotate in a specific embodiment of the present invention.

[0021] In the figure: 101, lifting mechanism; 1011, lead screw; 1012, first driving device; 102, arc plate; 103, swing mechanism; 1031, arc rack; 1032, first gear; 1033, second driving device; 2, clamping mechanism; 201, fixed plate; 202, telescopic device; 203, clamping plate; 3, clamping assembly; 301, first spring; 302, top block; 4, casing; 401, cylinder; 402, L-shaped clamping block ; 403, L-shaped slot block; 6, rotary drilling equipment; 7, flip frame; 8, rotary drilling drill bit assembly; 801, third driving device; 802, spiral cutter head; 803, third telescopic device; 9, connecting rod; 10, limiting slide rail; 11, sliding block; 12, telescopic sleeve rod; 13, connecting rod assembly; 1301, inclined rod; 1302, swing rod; 15, fixed block; 16, bearing plate; 17, limiting slide groove; 18, limiting groove; 24, auxiliary support rod. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] Embodiment 1. This embodiment aims to provide a full-steel casing device for rock-embedded piles under complex terrain. It is mainly used for splicing casings 4 without pulling out the rotary drill bit assembly 8. At present, when the rotary drill bit assembly 8 is drilling a hole, the casing 4 needs to be screwed in synchronously. When the casing 4 needs to be spliced, the rotary drill bit assembly 8 needs to be pulled out first, and then the casing 4 can be spliced, resulting in low construction efficiency. In this embodiment, the casings 4 can be spliced ​​with each other without pulling out the rotary drill bit assembly 8, which greatly improves the construction efficiency.

[0024] Based on the above problems, Figure 1-4 As shown, the rotary drilling equipment 6 is driven into the area where construction is required, and then a casing 4 is clamped on the fixed block 15. In this embodiment, since an L-shaped clamping block 402 is fixed on the fixed block 15, the casing 4 can be fixed after the L-shaped clamping block 402 is inserted into the L-shaped clamping slot block 403. Then, the casing 4 is spliced ​​and sleeved on the rotary drilling drill bit assembly 8 in sequence. In actual use, bolts can also be used to fix the L-shaped clamping block 402 and the L-shaped clamping slot block 403 to enhance the connection stability between the casings 4.

[0025] After the casing 4 is installed, the flip frame 7 can be flipped to a vertical state. In this embodiment, a plurality of support seats are fixedly provided on the flip frame 7 to support the casing 4 to prevent the casing 4 from tilting.

[0026] like Fig.11 As shown, the construction area is firstly drilled by the rotary drilling drill assembly 8.

[0027] Specifically, the rotary drilling bit assembly 8 includes a third driving device 801, a spiral cutter head 802, a third telescopic device 803 and a fixed traction member. In this embodiment, the third driving device 801 is a third driving self-locking motor, the third telescopic device 803 is a third electric telescopic rod, and the fixed traction member is fixedly arranged on the flip frame 7. The third driving device 801 is fixedly arranged at the bottom of the fixed traction member. A fixed block 15 is fixedly arranged on the flip frame 7. The output end of the third driving device 801 passes through the fixed block 15 and is transmission-connected with the third telescopic device 803. When the third driving device 801 is driven to start, the third telescopic device 803 can be driven to rotate. When the third telescopic device 803 rotates, the spiral cutter head 802 can be driven to rotate, so that the land is spirally drilled. The spiral cutter head 802 is fixedly arranged at the bottom of the movable rod of the third telescopic device 803. The bottom of the fixed block 15 is clamped with the uppermost casing 4. After the third telescopic device 803 is started, the spiral cutter head 802 can be driven to move downward, so that the spiral cutter head 802 punches a hole of a certain depth.

[0028] like Figure 1 As shown, after the hole is drilled, the lowermost casing 4 is first removed and moved into the hole, and then the clamping mechanism 2 clamps the casing 4 placed in the hole and is screwed into the soil together with the spiral cutter head 802.

[0029] Specifically, Fig. 9 As shown, the clamping mechanism 2 includes a fixed plate 201, a telescopic device 202 and two clamping plates 203 symmetrically arranged front and back. In this embodiment, the telescopic device 202 is an electric telescopic rod, and the fixed plate 201 is fixedly connected to the connecting rod 9; the telescopic device 202 is fixedly arranged on the fixed plate 201, and a limiting slide rail 10 is fixedly arranged on the fixed plate 201. Two sliding blocks 11 spaced apart front and back are slidably arranged on the limiting slide rail 10. The sliding block 11 is fixedly connected to the clamping plate 203. When the sliding block 11 moves, it can be clamped on the outer side of the casing 4 through the two clamping plates 203.

[0030] The movable rod end surface of the telescopic device 202 is hingedly connected to one of the sliding blocks 11, and the telescopic device 202 is driven to start, so that one of the sliding blocks 11 can be driven to move along the limiting slide rail 10. The fixed rod end surface of the telescopic device 202 is fixedly provided with a telescopic sleeve rod 12. In this embodiment, the telescopic sleeve rod 12 includes a sleeve and a sleeve rod sleeve. The telescopic sleeve rod 12 is hingedly connected to the other sliding block 11. The two sliding blocks 11 are connected by a connecting rod assembly 13, so that the two sliding blocks 11 move in relative or opposite directions. When the two inclined rods 1301 rotate, the other sliding block 11 can be driven to move along the limiting slide rail 10, so that the two sliding blocks 11 move in relative or opposite directions.

[0031] The connecting rod assembly 13 includes an inclined rod 1301 and a swing rod 1302; the swing rod 1302 is rotatably arranged on the top of the fixed plate 201, and each sliding block 11 is hingedly connected to the inclined rod 1301, and the other end of the inclined rod 1301 is hingedly connected to the swing rod 1302. When one of the sliding blocks 11 moves along the limiting slide rail 10, it can drive the corresponding inclined rod 1301 to rotate. Since the inclined rod 1301 is hingedly connected to the swing rod 1302, it can drive the swing rod 1302 to rotate. When the swing rod 1302 rotates, it can drive the other inclined rod 1301 to rotate.

[0032] like Fig.13 As shown, the swing mechanism 103 includes an arc-shaped rack 1031, a first gear 1032 and a second drive device 1033. In this embodiment, the second drive device 1033 is a second drive self-locking motor, and a limiting groove 18 is provided on the arc plate 102; the arc-shaped rack 1031 is fixedly arranged in the limiting groove 18, and the second drive device 1033 is slidably arranged in the limiting groove 18. The output end of the second drive device 1033 is transmission-connected with the first gear 1032. Since the first gear 1032 is meshed with the arc-shaped rack 1031, the first gear 1032 can be moved along the limiting arc-shaped groove. A limiting arc-shaped groove is provided in the limiting groove 18, and the first gear 1032 is slidably arranged in the limiting arc-shaped groove, driving the second drive device 1033 to start, so that the output shaft of the second drive device 1033 can drive the first gear 1032 to rotate.

[0033] The first gear 1032 is rotatably sleeved with a connecting rod 9, which is connected to the clamping mechanism 2, so that the clamping mechanism 2 moves forward and backward along the limiting groove 18. When the first gear 1032 rotates, it can drive the connecting rod 9 to swing, so that the clamping mechanism 2 swings and the casing 4 rotates.

[0034] In this embodiment, the casing 4 needs to be clamped by the clamping mechanism 2 first and rotated under the action of the swing mechanism 103, and then the casing 4 is released and the clamping mechanism 2 is returned to the initial position under the action of the swing mechanism 103, and the above operation is repeated to intermittently rotate the casing 4.

[0035] like Figure 3As shown, the lifting mechanism 101 includes a lead screw 1011 and a first drive device 1012. In the present embodiment, the first drive device 1012 is a first drive self-locking motor. The lead screw 1011 is arranged in the flip frame 7 and rotates along the extension direction of the flip frame 7. The first drive device 1012 is fixed on the inner top wall of the flip frame 7. The first drive device 1012 is connected to the lead screw 1011 in transmission. The arc plate 102 is mounted on the lead screw 1011 and is threadedly connected to the lead screw 1011. When the first drive device 1012 is started, the lead screw 1011 can be driven to rotate, so that the arc plate 102 moves downward along the flip frame 7, so that the clamped casing 4 can realize the trend of moving downward while rotating, thereby improving the effect of the casing 4 being screwed into the soil.

[0036] like Figure 2 As shown, when the casing 4 on the lower side is insufficient and needs to be spliced, it is only necessary to raise the swing mechanism 103 to the side of the casing 4 at the lowest end of the upper casing 4 and repeat the above operation to remove the casing 4.

[0037] In this embodiment, if there are bolts for fixing, the bolts of the casing 4 that needs to be disassembled can be removed, and then the casing 4 can be driven to rotate and disengage through the swing mechanism 103. Since the screws at the connection between other casings 4 have not been removed, the other casings 4 will not be driven to rotate, and only the casing 4 with the removed bolts can be driven to rotate.

[0038] The casing 4 to be disassembled can be lowered under the action of the lifting mechanism 101, and the L-shaped clamping block 402 is inserted into the L-shaped clamping groove block 403 for locking.

[0039] Specifically, Figure 6-Figure 7 As shown, the clamping assembly 3 includes a first spring 301 and a top block 302; the first spring 301 is fixedly arranged on the inner side wall of the L-shaped slot block 403, and the other end of the first spring 301 is fixedly connected to the top block 302, so that the top block 302 moves in the L-shaped slot block 403; the L-shaped clamping block 402 is inserted into the L-shaped slot block 403, and the top block 302 pushes the L-shaped clamping block 402 into the L-shaped slot block 403 under the action of the first spring 301. After the L-shaped clamping block 402 is inserted into the L-shaped slot block 403, the L-shaped clamping block 402 can be clamped in the L-shaped slot block 403 through the settings of the first spring 301 and the top block 302, and after the clamping is completed, the L-shaped clamping block 402 and the L-shaped slot block 403 are fixed by bolts.

[0040] If the casing 4 needs to be removed, it is only necessary to clamp the uppermost casing 4 by the clamping mechanism 2, and then repeat the above operation in reverse, so that the clamped casing 4 is moved upward and rotated to pull the casing 4 out of the hole.

[0041] Embodiment 2: In the structure of embodiment 1, when the connecting rod 9 is swung by the swing mechanism 103, since the connecting rod 9 is not limited, the connecting rod 9 may swing randomly, resulting in poor effect of clamping the casing 4.

[0042] Based on the above problems, this embodiment Fig.10 As shown, the arc plate 102 is fixed with a bearing plate 16 away from the flip frame 7, and a limit slide groove 17 is provided on the bearing plate 16. A limit pin is fixed on the connecting rod 9, and the limit pin is slidably arranged in the limit slide groove 17. Fig.14 As shown, when the connecting rod 9 is swinging, the limiting sliding groove 17 can limit the connecting rod 9, thereby improving the effect of the clamping mechanism 2 clamping the casing 4, and the bearing plate 16 can also strengthen the supporting force of the connecting rod 9.

[0043] Compared with Example 1, the advantage of this embodiment is that the arrangement of the bearing plate 16 and the limiting slide groove 17 can not only improve the supporting force of the connecting rod 9, but also limit the moving trajectory of the connecting rod 9, thereby improving the use effect and extending the service life.

[0044] In Example 3, in the structures of Example 1 and Example 2, the rotary drilling bit assembly 8 and the casing 4 are supported solely by the flip frame 7, resulting in insufficient supporting force of the flip frame 7, thereby reducing the service life of the device.

[0045] Based on the above problems, this embodiment Fig.12 As shown, auxiliary support rods 24 are fixedly provided on both sides of the flip frame 7, so that the auxiliary support rods 24 can bear the force of the rotary drilling bit assembly 8 and the casing 4, and also share the force for the flip frame 7, thereby extending the service life.

[0046] Compared with Embodiment 1 and Embodiment 2, the advantage of this embodiment is that the rotary drilling drill bit assembly 8 and the casing 4 are supported by the flip frame 7 and the auxiliary support rod 24, which can improve the supporting effect and extend the service life.

[0047] The construction method of all-steel casing for rock-embedded piles under complex terrain is as follows: S1, according to the height control points provided by the owner, carry out dense layout to ensure the visibility of the building axis points under the dense points; S2, move the rotary drilling device 6 to the vicinity of the rotary hole, and flip the frame 7 to be perpendicular to the ground; S3, first clamp the uppermost casing 4 on the fixing block 15, then splice and clamp the casings 4 together in sequence, and sleeve the spliced ​​casings 4 on the rotary drilling bit assembly 8, so that the number of casings 4 can be adjusted according to demand; S4, driving the third driving device 801 and the third telescopic device 803 to start, so that the spiral cutter head 802 can be rotated into the soil. The third driving device 801 is driven to start, which can drive the third telescopic device 803 to rotate. When the third telescopic device 803 rotates, it can drive the spiral cutter head 802 to rotate, so that the soil is spirally drilled. After the third telescopic device 803 is started, it can drive the spiral cutter head 802 to move downward, so that the spiral cutter head 802 drills a hole of a certain depth. S5, clamp the upper casing 4 by the clamping mechanism 2, then drive the swing mechanism 103 to start, so that the lowermost casing 4 is separated from it. After the separation is completed, the arc plate 102 is driven downward by the lifting mechanism 101 to place the lowermost casing 4 in the hole opened by the spiral cutter head 802; S6, after the lowermost casing 4 is placed in the hole, the clamping mechanism 2 does not release the casing 4, and then the lowermost casing 4 can be screwed into the hole under the action of the swing mechanism 103 and the clamping mechanism 2, and stops when the lowermost casing 4 cannot be clamped; S7, repeating the operations of S5-S6, splicing and superimposing the split casing 4 on the casing 4 below, and clamping the casing 4 and screwing it into the hole; S8, when the casing 4 is lowered to a height that meets the requirements, the screwing is stopped, and then the spiral cutter head 802 is pulled out of the hole, the steel cage is lowered, and then concrete is poured; S9, driving the lifting mechanism 101 to move, so that the clamping mechanism 2 clamps the casing 4, and pulls the casing 4 out of the hole The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. The basic concept of the present invention is to assemble the casing 4 on the flip frame 7, and then disassemble, move and install the casing 4 according to the needs, so that the casing 4 can be spliced ​​without pulling out the rotary drill assembly 8, which greatly improves the construction efficiency. Moreover, the pulled-out casing 4 can also be assembled on the flip frame 7 for the next use, and the casing 4 does not need to be disassembled and assembled again, which reduces the labor intensity of the construction personnel. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A full steel casing device for rock-embedded piles in complex terrain, comprising a rotary drilling device (6), characterized in that: The lifting and swinging mechanism, the clamping mechanism (2), the clamping assembly (3), and a plurality of casings (4) spliced ​​up and down; The rotary drilling device (6) is provided with a flip frame (7), and the flip frame (7) is connected to the rotary drilling drill bit assembly (8); The lifting and swinging mechanism comprises a lifting mechanism (101), an arc-shaped plate (102) and a swinging mechanism (103); the lifting mechanism (101) is arranged in the flip frame (7); the lifting mechanism (101) is connected to the arc-shaped plate (102) so that the arc-shaped plate (102) moves up and down along the flip frame (7); the swinging mechanism (103) is arranged on the arc-shaped plate (102); the swinging mechanism (103) is connected to the clamping mechanism (2) so that the clamping casing (4) rotates with the rotary drill bit assembly (8) as an axis; The casing (4) comprises a cylinder (401), an L-shaped clamping block (402) and an L-shaped clamping slot block (403); the cylinder (401) is sleeved on the rotary drill bit assembly (8); the cylinder (401) at the uppermost side is arranged on the flip frame (7); the L-shaped clamping block (402) is fixedly arranged on the inner side wall at the bottom of the cylinder (401); the L-shaped clamping slot block (403) is fixedly arranged on the inner side wall at the top of the cylinder (401); the clamping assembly (3) is arranged in the L-shaped clamping slot block (403); the L-shaped clamping block (402) is inserted into the L-shaped clamping slot block (403); under the action of the clamping assembly (3), the L-shaped clamping block (402) is clamped in the L-shaped clamping slot block (403); When the cylinder (401) above the clamping mechanism (2) rotates under the drive of the swing mechanism (103), the L-shaped clamping block (402) can be separated from the L-shaped clamping slot block (403), so that the two upper and lower adjacent casings (4) are separated; The clamping mechanism (2) clamps the lower cylinder (401), and under the cooperation of the swing mechanism (103) and the lifting mechanism (101), the lower cylinder (401) can be rotated and moved into the hole.

2. The all-steel casing device for rock-embedded piles in complex terrain according to claim 1 is characterized in that: The clamping assembly (3) comprises a first spring (301) and a top block (302); the first spring (301) is fixedly arranged on the inner side wall of the L-shaped slot block (403), and the other end of the first spring (301) is fixedly connected to the top block (302), so that the top block (302) moves in the L-shaped slot block (403); The L-shaped card block (402) is inserted into the L-shaped card slot block (403), so that the push block (302) pushes the L-shaped card block (402) into the L-shaped card slot block (403) under the action of the first spring (301).

3. The all-steel casing device for rock-embedded piles in complex terrain according to claim 1 is characterized in that: The lifting mechanism (101) comprises a lead screw (1011) and a first drive device (1012); the lead screw (1011) is arranged inside the flip frame (7) and rotates along the extension direction of the flip frame (7); the first drive device (1012) is fixed on the inner top wall of the flip frame (7); the first drive device (1012) is transmission-connected to the lead screw (1011); and the arc-shaped plate (102) is sleeved on the lead screw (1011) and is threadedly connected to the lead screw (1011).

4. The all-steel casing device for rock-embedded piles in complex terrain according to claim 1 is characterized in that: The swing mechanism (103) comprises an arc-shaped rack (1031), a first gear (1032) and a second driving device (1033); a limiting groove (18) is provided on the arc-shaped plate (102); The arc-shaped rack (1031) is fixedly arranged in the limiting groove (18), the second driving device (1033) is slidably arranged in the limiting groove (18), the output end of the second driving device (1033) is transmission-connected with the first gear (1032), the first gear (1032) is meshed with the arc-shaped rack (1031), a limiting arc-shaped groove is provided in the limiting groove (18), and the first gear (1032) is slidably arranged in the limiting arc-shaped groove.

5. The all-steel casing device for rock-embedded piles in complex terrain according to claim 4 is characterized in that: The first gear (1032) is rotatably sleeved with a connecting rod (9), the connecting rod (9) being connected to the clamping mechanism (2) so that the clamping mechanism (2) moves forward and backward along the limiting groove (18); A bearing plate (16) is fixedly provided on the arc-shaped plate (102) away from the flip frame (7), a limiting sliding groove (17) is provided on the bearing plate (16), and a limiting pin is fixedly provided on the connecting rod (9), and the limiting pin is slidably arranged in the limiting sliding groove (17).

6. The all-steel casing device for rock-embedded piles in complex terrain according to claim 5 is characterized in that: The clamping mechanism (2) comprises a fixing plate (201), a telescopic device (202), and two clamping plates (203) symmetrically arranged front and back; the fixing plate (201) is fixedly connected to the connecting rod (9); The telescopic device (202) is fixedly mounted on a fixed plate (201), a limiting slide rail (10) is fixedly mounted on the fixed plate (201), two sliding blocks (11) are slidably mounted on the limiting slide rail (10) and are spaced apart from each other in a front-to-rear manner, and the sliding blocks (11) are fixedly connected to the clamping plate (203).

7. The all-steel casing device for rock-embedded piles in complex terrain according to claim 6 is characterized in that: The movable rod end surface of the telescopic device (202) is hingedly connected to one of the sliding blocks (11); the fixed rod end surface of the telescopic device (202) is fixedly provided with a telescopic sleeve rod (12); the telescopic sleeve rod (12) is hingedly connected to the other sliding block (11); the two sliding blocks (11) are transmission-connected via a connecting rod assembly (13), so that the two sliding blocks (11) move in opposite or opposite directions.

8. The all-steel casing device for rock-embedded piles in complex terrain according to claim 7 is characterized in that: The connecting rod assembly (13) comprises an inclined rod (1301) and a swing rod (1302); the swing rod (1302) is rotatably arranged on the top of the fixed plate (201), each of the sliding blocks (11) is hingedly connected to the inclined rod (1301), and the other end of the inclined rod (1301) is hingedly connected to the swing rod (1302).

9. The all-steel casing device for rock-embedded piles in complex terrain according to claim 1 is characterized in that: The rotary drilling bit assembly (8) comprises a third driving device (801), a spiral cutter head (802), a third telescopic device (803) and a fixed traction member; the fixed traction member is fixedly arranged on the flip frame (7); the third driving device (801) is fixedly arranged at the bottom of the fixed traction member; a fixed block (15) is fixedly arranged on the flip frame (7); the output end of the third driving device (801) passes through the fixed block (15) and is transmission-connected to the third telescopic device (803); the spiral cutter head (802) is fixedly arranged at the bottom of a movable rod of the third telescopic device (803); and the bottom of the fixed block (15) is clamped with the uppermost casing (4).

10. The construction method of all-steel casing for rock-embedded piles under complex terrain is characterized by: The specific operations are as follows: S1, according to the height control points provided by the owner, carry out dense layout to ensure the visibility of the building axis points under the dense points; S2, moving the rotary drilling device (6) to the vicinity of the rotary hole and turning the frame (7) vertically to the ground; S3, first clamping the uppermost casing (4) onto the fixing block (15), then splicing and clamping the casings (4) together in sequence, and sleeve-mounting the spliced ​​casings (4) onto the rotary drilling bit assembly (8); S4, driving the third driving device (801) and the third telescopic device (803) to start, so that the spiral cutter head (802) can be rotated into the ground; S5, clamping the upper casing (4) by means of the clamping mechanism (2), and then driving the swing mechanism (103) to start, so that the lowermost casing (4) is separated from it. After the separation is completed, the arc plate (102) is driven downward by the lifting mechanism (101), and the lowermost casing (4) is placed in the hole opened by the spiral cutter head (802); S6, after the lowermost casing (4) is placed in the hole, the clamping mechanism (2) does not release the casing (4), and then the lowermost casing (4) is screwed into the hole under the action of the swing mechanism (103) and the clamping mechanism (2), and stops when the lowermost casing (4) can no longer be clamped; S7, repeating the operations of S5-S6, so that the separated casing (4) is spliced ​​and superimposed on the casing (4) below, and the casing (4) is clamped and screwed into the hole; S8, when the casing (4) is lowered to a height that meets the requirements, the screwing is stopped, and then the spiral cutter head (802) is pulled out of the hole, the steel cage is lowered, and then concrete is poured; S9, driving the lifting mechanism (101) to move, so that the clamping mechanism (2) clamps the casing (4), and pulls the casing (4) out of the hole.

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