Drilling and sampling device for bridge pile foundation construction in karst area

Abstract

The invention relates to the technical field of drilling and sampling, and discloses a karst area bridge pile foundation construction drilling and sampling device which comprises a movable vehicle body, a fixing frame, a turnover mechanism, a second electric hydraulic device, a driving motor and a drilling barrel, a second supporting column and a first supporting column are fixedly arranged at the front end and the rear end of the movable vehicle body, and universal wheels are installed at the bottoms of the first supporting column and the second supporting column; the fixing frame is fixedly arranged at the front end of the movable vehicle body, the turnover mechanism is arranged above the fixing frame, the upper portion of the turnover mechanism is connected with a turnover frame of an L-shaped plate-shaped structure, the second electric hydraulic device is fixedly arranged at the end of the turnover frame in a penetrating mode, the bottom of the second electric hydraulic device is connected with a third hydraulic rod, and the driving motor is installed at the bottom of the third hydraulic rod. The bottom of the driving motor is connected with a driving shaft II; the drilling barrel is mounted at the bottom of the driving shaft II; and a safety protection auxiliary drilling device is arranged outside the drilling barrel. The device is suitable for bridge pile foundation construction under complex geological conditions such as karst areas, and accurate and stable drilling sampling can be conveniently carried out at different angles.

Description

Technical Field

[0001] The invention relates to the technical field of drilling sampling, and in particular to a drilling sampling device for bridge pile foundation construction in a karst area. Background Art

[0002] Karst areas were once considered a restricted area for bridge construction, mainly for two reasons: first, the quality of piles is difficult to guarantee, and second, collapse accidents are prone to occur during the construction of pile foundations, making construction safety difficult to guarantee. At present, most bridges may be affected by geological conditions during the construction of pile foundations, especially construction in karst areas, which sets up obstacles for the construction of bridge pile foundations. In order to ensure the strength, safety and stability of bridge pile foundations, it is necessary to first conduct small-scale mobile drilling sampling operations on the bridge pile foundations during construction, and then conduct drilling sampling of the bridge pile foundations after judging the sampling results.

[0003] Existing construction drilling devices are difficult to move flexibly in complex karst terrain, and are not suitable for bridge pile foundation drilling sampling in complex geological conditions such as karst areas. Most drilling devices only have directional drilling sampling and cannot adjust the drilling angle. There are too many uncertain factors in the drilling process that are difficult to protect safely, which may cause the drilling process to be unstable and tilted, and reduce accuracy and efficiency. Therefore, it is necessary to design a corresponding technical solution to solve this problem. Summary of the invention

[0004] The purpose of the present invention is to provide a drilling sampling device for bridge pile foundation construction in karst areas in response to the above-mentioned deficiencies of existing construction drilling devices. The device can be well applied to bridge pile foundation drilling sampling under complex geological conditions such as karst areas, and can facilitate accurate and stable drilling sampling at different angles. At the same time, it can effectively improve the stability during the drilling process, reduce the shaking coefficient during the drilling process, and enhance the accuracy, efficiency and safety of drilling.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention provides a drilling sampling device for bridge pile foundation construction in karst areas, comprising a mobile body, a fixed frame, a turning mechanism, a second electric hydraulic device, a driving motor and a drill tube, wherein both sides of the bottom of the mobile body are fixedly provided with cross bars, a second pillar is fixedly provided at the front end of the cross bar, a first pillar is fixedly provided at the rear end of the cross bar, and universal wheels are installed at the bottoms of the first pillar and the second pillar;

[0007] The fixing frame is an L-shaped plate structure fixedly arranged at the front end of the mobile vehicle body, the flipping mechanism is arranged above the fixing frame, and the flipping frame is connected to the top of the flipping mechanism. The fixing frame and the flipping frame are in opposite structures;

[0008] The second electric hydraulic device is fixedly mounted on the end of the turning frame, the bottom of the second electric hydraulic device is connected to a hydraulic rod 3, the driving motor is mounted on the bottom of the hydraulic rod 3, the bottom of the driving motor is connected to a driving shaft 2, and the drill tube is mounted on the bottom of the driving shaft 2;

[0009] A safety protection auxiliary drilling device is arranged on the outside of the drill tube, and the safety protection auxiliary drilling device is installed upward on the outside of the driving motor.

[0010] As a preferred solution of the present invention, a lining rod is fixedly provided near the upper end of the pillar, a fixing seat is fixedly provided at the bottom of the lining rod, a bottom plate is fixedly provided at the rear end of the fixing seat, a supporting frame is fixedly provided at the upper end of the bottom plate, an axle frame is movably connected to the supporting frame, a pull rod is fixedly provided at the upper end of the axle frame, a handle frame is fixedly provided at the upper end of the pull rod, and a steering wheel is rotatably connected to the bottom of the bottom plate; the lining rod is used to install the fixing seat downward, the fixing seat is used to stably support the bottom plate, the bottom plate is used to rotate downward to support the steering wheel, and the bottom plate is used to fix the supporting frame upward, the supporting frame is used to rotate and adjust the axle frame, and the axle frame is used to fix the pull rod upward so that the pull rod can be rotated or flipped to adjust the angle to pull and move the vehicle body, and the handle frame is convenient for two-handed holding operation.

[0011] As a preferred embodiment of the present invention, an electric hydraulic device 1 is fixedly provided at the middle of the top of the mobile body, a control device is electrically connected to the front of the electric hydraulic device 1, a hydraulic rod 1 is connected through the bottom of the electric hydraulic device 1, a support plate with a cross-plate structure is fixedly provided at the bottom of the hydraulic rod 1, a hydraulic rod 2 is connected to the bottom of the fixed frame, and the upper part of the hydraulic rod 2 is connected to the electric hydraulic device 1 through a hydraulic pipeline, and a support seat is fixedly provided at the bottom outer end of the support plate and the bottom of the hydraulic rod 2, and the support seats are both step-shaped, and an auxiliary telescopic rod is fixedly provided at the top outer end of the support plate and the bottom of the mobile body; the electric hydraulic device 1 is used to control the lifting and lowering adjustment of the hydraulic rod 1 and the hydraulic rod 2 downward or toward the front end through a hydraulic pipeline, the support plate with a cross-plate structure is used to increase the supporting area, and multiple sets of step-shaped support seats are used to support the mobile body on the ground for more stable drilling sampling, and the auxiliary telescopic rod is used to assist the lifting and lowering adjustment of the support plate to prevent tilting and provide stable support.

[0012] As a preferred embodiment of the present invention, a groove is provided on the top of the fixed frame, a positioning hole 1 is provided at the lower end of the rear portion of the flip frame, and a positioning hole 2 is provided at the bottom of the flip frame; the flip mechanism includes a driving motor 1 and a positioning support mechanism, a driving shaft 1 is connected through the bottom of the flip frame, the driving shaft 1 is rotatably connected to the upper end of the groove, shaft cylinders are connected through the upper ends of the groove, the driving motor 1 is connected through the shaft cylinder to the side of the driving shaft 1, a support is fixedly provided at the bottom of the driving motor 1, the support is installed on the side of the fixed frame, and the positioning support mechanism is fixedly provided at the bottom of the groove; the groove is used for movably adjusting the flip frame and installing the positioning support mechanism, the support is used to support the driving motor 1, the driving motor 1 is used to drive and control the rotation of the driving shaft 1, the driving shaft 1 is used to drive the flip frame to adjust the flipping angle, and the positioning hole 1 and the positioning hole 2 are both used for positioning support at different positions.

[0013] As a preferred embodiment of the present invention, the positioning support mechanism includes an electric push rod device 1, an end plate and a positioning head. The electric push rod device 1 is fixedly arranged at the bottom middle of the groove, the top of the electric push rod device 1 is connected to a push rod 1, the end plate is laterally fixedly arranged on the top of the push rod 1, the positioning head is fixedly distributed on the top of the end plate, the external sliding connection of the push rod 1 is connected to a limiting ring, and the outer side wall of the limiting ring is fixedly provided with a support rod of an inverted L-shaped structure; the electric push rod device 1 and the push rod 1 are used to control the lifting and lowering adjustment of the end plate, a plurality of positioning heads are used to position and plug in the positioning hole 1 or the positioning hole 2 so as to lock the support flip frame, a plurality of support rods of an inverted L-shaped structure are used to stabilize the high-strength support limiting ring, and the limiting ring is used to safely limit the stable sliding of the push rod 1.

[0014] As a preferred solution of the present invention, a fixing column is fixedly distributed on the upper end of the side of the fixing frame, a fixing plate is fixedly provided on the outer end of the fixing column, a sliding groove is opened at the outer end edge of the fixing plate, the circumference of the sliding groove is three quarters of a circle, and a limiting axis is fixedly distributed on the side of the flipping frame, the limiting axis is connected through the sliding groove, and the outer end of the limiting axis is connected with a locking bolt by a thread; a plurality of fixing columns are used to support the fixing plate with high strength, the limiting axis is used to assist the flipping adjustment of the flipping frame to be more stable, the sliding groove is used to limit the sliding limiting axis, and the locking bolt is used to lock the limiting axis to the outer end of the sliding groove, so as to further stably support the flipping frame, and the circumference of the sliding groove is three quarters of a circle, so that the flipping adjustment angle of the flipping frame is within 270 degrees, thereby improving the range of flipping adjustment.

[0015] As a preferred solution of the present invention, a limit rod is fixedly provided on the bottom side end of the hydraulic rod three, a positioning block is fixedly provided on the front end of the flip frame, a limit hole is provided inside the positioning block, and the limit rod is connected to the limit hole through the limit hole; the limit hole is used for movably adjusting the limit rod, thereby assisting the lifting and lowering adjustment of the hydraulic rod three to make it more stable.

[0016] As a preferred embodiment of the present invention, the safety protection auxiliary drilling device includes a mounting ring, a bracket one, an electric push rod device two, a bracket two, an electric push rod device three and an auxiliary protective plate, the mounting ring is sleeved on the outside of the driving motor, a circle of the mounting ring is connected by threaded penetration with locking bolts, the bracket one is fixed at the front and rear ends of the mounting ring, the electric push rod device two longitudinally penetrates the bracket one and is connected to the push rod two, the bracket two is fixed at the bottom of the push rod two, the electric push rod device three transversely penetrates the bracket two and is connected to the push rod three, and the auxiliary protective plate is fixed at the inner end of the push rod three; the mounting ring is used to sleeve and install the safety protection auxiliary drilling device on the outside of the driving motor, the locking bolt is used to adjust the tightness to facilitate the disassembly and assembly of the safety protection auxiliary drilling device to the outside of the driving motor, the electric push rod device two and the push rod two are used to lift and adjust the height of the bracket two, the electric push rod device three and the push rod three are used to telescopically adjust the position of the auxiliary protective plate, so that it can stably clamp the drill barrel and assist in stable rotation drilling.

[0017] As a preferred solution of the present invention, the inner side of the auxiliary protective plate is an arc-shaped structure, and a fixed frame is fixedly distributed on the inner wall of the auxiliary protective plate, and shaft seats are fixedly provided at the upper and lower ends of the interior of the fixed frame, and a movable shaft is rotatably connected between the shaft seats, and an auxiliary roller is fixedly provided in the middle of the movable shaft, and the auxiliary roller is a spherical structure; the auxiliary protective plate with an arc-shaped structure on the inner side fits the drill barrel more closely, the shaft seat is used for movably supporting the rotation of the movable shaft, and the movable shaft is used to fix the auxiliary roller with a spherical structure so that it can be rotated and adjusted, and multiple groups of auxiliary rollers directly contact the outer wall of the drill barrel to make the rotation more stable.

[0018] As a preferred embodiment of the present invention, anti-sway positioning structures are provided on both sides of the auxiliary protective plate, and the anti-sway positioning structures include an electric push rod device four, an extension plate and a metal docking plate, the extension plate is fixedly arranged on the side end of the auxiliary protective plate, the electric push rod device four is connected through the extension plate at the front end, the output end of the electric push rod device four is connected with a push rod four, the end of the push rod four is fixedly provided with a magnetic block, the metal docking plate is connected through the extension plate at the rear end, a positioning groove is provided at the front end of the metal docking plate, and the magnetic block is positioned and inserted in the positioning groove; the extension plates at the front and rear ends of both sides are respectively used to fix the electric push rod device four and the metal docking plate, the electric push rod device four and the push rod four are used to control the telescopic adjustment of the magnetic block, and the positioning groove is used to position the magnetic block, so that it is strongly adsorbed and positioned, and the auxiliary drill barrel is more stable and anti-sway when rotating.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] The present invention enhances the mobility and stability of the device by means of pillars and universal wheels arranged under the mobile body, so that the device can be flexibly moved in complex karst terrain and is suitable for bridge pile foundation construction under complex geological conditions such as karst areas. The flip frame connected to the flip mechanism above the fixed frame is convenient for flipping and adjusting the construction drilling mechanism according to the construction requirements of bridge pile foundations in karst areas, so as to facilitate accurate and stable drilling sampling at different angles. The drill barrel is automatically lifted and controlled for drilling sampling by means of the arranged electric hydraulic device 2 and the driving motor. In addition, the safety protection auxiliary drilling device is arranged outside the drill barrel. The all-round protection design can effectively improve the stability during the drilling process and reduce the shaking coefficient during the drilling process. Multiple sets of auxiliary rollers can be flexibly adjusted as the drill barrel rotates during the drilling process, so as to enhance the accuracy, efficiency and safety of drilling, and further enhance its application value in bridge pile foundation construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0022] Figure 1 It is a schematic diagram of the overall front left upper viewing angle structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall front right upper viewing angle structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the overall rear left lower viewing angle structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the upper left side of the front part of the mobile vehicle body of the present invention;

[0026] Figure 5 It is a schematic diagram of the overall structure of the construction drilling mechanism of the present invention;

[0027] Figure 6 It is a schematic structural diagram of the flip mechanism of the present invention from the upper right front view;

[0028] Figure 7 It is a schematic diagram of the overall structure of the flip-back positioning support mechanism of the present invention;

[0029] Figure 8 It is a schematic diagram of the lifting drilling structure of the present invention;

[0030] Fig. 9It is a schematic structural diagram of the safety protection auxiliary drilling device of the present invention;

[0031] Fig.10 It is a schematic diagram of the anti-sway positioning structure of the present invention;

[0032] Fig.11 It is a schematic diagram of the structure of the auxiliary protection plate of the present invention;

[0033] Fig.12 It is a schematic diagram of the auxiliary roller structure of the present invention.

[0034] Marks and corresponding parts names in the attached drawings:

[0035] 1. Mobile body; 11. Crossbar; 12. Pillar 1; 121. Pillar 2; 122. Universal wheel; 13. Lining rod; 14. Fixed seat; 141. Pull rod; 142. Handle frame; 143. Axle frame; 144. Support frame; 145. Bottom plate; 146. Steering wheel; 2. Electric hydraulic device 1; 21. Control device; 22. Hydraulic rod 1; 23. Support plate; 24. Hydraulic rod 2; 25. Support seat; 26. Auxiliary telescopic rod; 3. Fixed frame; 31. Groove; 32. Turning frame; 321. Positioning hole 1; 322. Positioning hole 2; 41. Driving motor 1; 411. Driving shaft 1; 412. Support; 42. Shaft cylinder; 43. Positioning support mechanism; 431. Electric push rod device 1; 432. Push rod 1; 433. End plate; 434. Positioning head; 435. Limiting ring; 436. Support rod; 44, fixed plate; 441, fixed column; 442, slide groove; 45, limit shaft; 451, locking bolt; 5, electric hydraulic device two; 51, hydraulic rod three; 52, positioning block; 521, limit hole; 53, limit rod; 6, drive motor two; 61, drive shaft two; 7, drill tube; 8, safety protection auxiliary drilling device; 81, mounting ring; 811, locking bolt; 82, bracket one; 83, electric push rod device two; 831, push rod two; 84, bracket two; 85, electric push rod device three; 851, push rod three; 86, auxiliary protective plate; 861, auxiliary roller; 862, fixed frame; 863, movable shaft; 864, shaft seat; 87, electric push rod device four; 871, push rod four; 872, magnetic block; 88, extension plate; 881, metal docking plate; 882, positioning groove. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0038] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0039] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0041] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0042] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces), unless otherwise clearly and specifically defined.

[0043] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0044] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0045] Please refer to Figures 1 to 12 A drilling sampling device for bridge pile foundation construction in a karst area provided in an embodiment of the present application comprises a mobile body 1, a fixed frame 3, a turning mechanism, an electric hydraulic device 2 5, a driving motor 6 and a drill tube 7, a cross bar 11 is fixedly provided on both sides of the bottom of the mobile body 1 in the walking direction, a pillar 2 121 is fixedly provided at the front end of the cross bar 11, a pillar 12 is fixedly provided at the rear end of the cross bar 11, and a universal wheel 122 is installed at the bottom of the pillar 12 and the pillar 2 121;

[0046] The fixing frame 3 is an L-shaped plate structure fixedly arranged at the front end of the mobile vehicle body 1, the flipping mechanism is arranged at the upper part of the fixing frame 3, and the flipping mechanism is connected to a flipping frame 32 with an L-shaped plate structure, and the fixing frame 3 and the flipping frame 32 are arranged in an opposite structure;

[0047] The electric hydraulic device 2 5 is fixedly mounted on the end of the overturn frame 32, the bottom of the electric hydraulic device 2 5 is connected to a hydraulic rod 3 51, the drive motor 6 is mounted on the bottom of the hydraulic rod 3 51, the bottom of the drive motor 6 is connected to a drive shaft 2 61, and the drill tube 7 is mounted on the bottom of the drive shaft 2 61;

[0048] A safety protection auxiliary drilling device 8 is provided on the outside of the drill tube 7 , and the safety protection auxiliary drilling device 8 is installed upward on the outside of the driving motor 6 .

[0049] The support and universal wheel 122 arranged under the mobile body 1 enhance the mobility and stability of the device, so that it can be flexibly moved in the complex karst terrain, and is suitable for drilling and sampling of bridge pile foundations under complex geological conditions such as karst areas; the flip frame 32 connected by the flip mechanism above the fixed frame 3 is convenient for flipping and adjusting the construction drilling mechanism according to the construction requirements of bridge pile foundations in karst areas, so as to facilitate accurate and stable drilling sampling at different angles; the electric hydraulic device 25 and the drive motor 6 are arranged to automatically lift and control the drilling sampling of the drill barrel 7, and the safety protection auxiliary drilling device 8 is arranged outside the drill barrel 7. The all-round protection design can effectively improve the stability of the drilling process and reduce the shaking coefficient of the drilling process. The multiple sets of auxiliary rollers 861 can be flexibly adjusted with the rotation of the drill barrel 7 during the drilling process, thereby enhancing the accuracy, efficiency and safety of drilling, and further enhancing its application value in the construction of bridge pile foundations.

[0050] According to some embodiments of the present application, a lining rod 13 is fixedly provided between the two pillars 12 near the upper end, a fixing seat 14 is fixedly provided at the bottom of the lining rod 13, a bottom plate 145 is fixedly provided at the bottom of the rear end of the fixing seat 14, a support frame 144 is fixedly provided at the upper end of the bottom plate 145, an axle frame 143 is movably connected to the support frame 144, a pull rod 141 is fixedly provided at the upper end of the axle frame 143, a handle frame 142 is fixedly provided at the upper end of the pull rod 141, and a steering wheel 146 is rotatably connected to the bottom of the bottom plate 145.

[0051] Among them, the lining rod 13 is used to install the fixing seat 14 downward, the fixing seat 14 is used to firmly support the base plate 145, the base plate 145 is used to rotate and support the steering wheel 146 downward, and the base plate 145 is used to fix the support frame 144 upward, the support frame 144 is used to rotate and adjust the axle frame 143, and the axle frame 143 is used to fix the pull rod 141 upward, so that the pull rod 141 can be rotated or flipped to adjust the angle to pull and move the vehicle body 1, and the handle frame 142 is convenient for two-handed holding operation.

[0052] According to some embodiments of the present application, an electric hydraulic device 2 is fixedly provided at the middle of the top of the mobile body 1, a control device 21 is electrically connected to the front of the electric hydraulic device 2, a hydraulic rod 22 is connected through the bottom of the electric hydraulic device 2, a support plate 23 with a cross-plate structure is fixedly provided at the bottom of the hydraulic rod 22, a hydraulic rod 24 is connected to the bottom of the fixed frame 3, the top of the hydraulic rod 24 is connected to the electric hydraulic device 2 through a hydraulic pipe, a support seat 25 is fixedly provided at the bottom outer end of the support plate 23 and the bottom of the hydraulic rod 24, and the support seat 25 is in the shape of a step, and an auxiliary telescopic rod 26 is fixedly provided at the top outer end of the support plate 23 and the bottom of the mobile body 1.

[0053] Among them, the electric hydraulic device 2 is used to control the lifting and lowering adjustment of the hydraulic rod 1 22 and the hydraulic rod 2 24 downward or toward the front end through the hydraulic pipeline, the support plate 23 with a cross-plate structure is used to increase the support area, and multiple sets of step-shaped support seats 25 are used to support the mobile vehicle body 1 on the ground to facilitate more stable drilling and sampling. The auxiliary telescopic rod 26 is used to assist the lifting and lowering adjustment of the support plate 23 to prevent tilting and provide stable support.

[0054] According to some embodiments of the present application, a groove 31 is provided on the top of the fixing frame 3, a positioning hole 1 321 is provided on the rear lower end of the flip frame 32, and a positioning hole 2 322 is provided on the bottom of the flip frame 32;

[0055] The flipping mechanism includes a driving motor 41 and a positioning support mechanism 43. A driving shaft 411 is connected through the bottom of the flip frame 32. The driving shaft 411 is rotatably connected to the upper end of the groove 31. The upper ends of the groove 31 are connected through shaft tubes 42. The driving motor 41 passes through the shaft tube 42 and is connected to the ends of the driving shaft 411. A support 412 is fixedly provided at the bottom of the driving motor 41. The support 412 is installed on the side of the fixing frame 3. The positioning support mechanism 43 is fixedly provided at the bottom of the groove 31.

[0056] Among them, the groove 31 is used for movably adjusting the flip frame 32 and installing the positioning support mechanism 43, the support 412 is used to support the driving motor 41, the driving motor 41 is used to drive and control the driving shaft 411 to rotate, and the driving shaft 411 is used to drive the flip frame 32 to flip and adjust the angle, and the positioning hole 1 321 and the positioning hole 2 322 are both used for positioning support at different positions.

[0057] According to some embodiments of the present application, the positioning support mechanism 43 includes an electric push rod device 431, an end plate 433 and a positioning head 434. The electric push rod device 431 is fixedly arranged at the middle of the bottom of the groove 31. The top of the electric push rod device 431 is connected to a push rod 432. The end plate 433 is laterally fixedly arranged on the top of the push rod 432. The positioning head 434 is fixedly distributed on the top of the end plate 433. The outer sliding connection of the push rod 432 is a limiting ring 435. The outer side wall of the limiting ring 435 is fixedly distributed with a support rod 436 of an inverted L-shaped structure.

[0058] Among them, the electric push rod device 431 and the push rod 432 are used to control the lifting and lowering adjustment of the end plate 433, multiple positioning heads 434 are used to position and insert the positioning hole 1 321 or the positioning hole 2 322 to lock the support flip frame 32, and multiple inverted L-shaped support rods 436 are used to stabilize the high-strength support limit ring 435, and the limit ring 435 is used to safely limit the push rod 432 to ensure stable sliding.

[0059] According to some embodiments of the present application, a fixing column 441 is fixedly distributed on the upper end of the side of the fixing frame 3, a fixing plate 44 is fixedly provided on the outer end of the fixing column 441, a slide groove 442 is provided at the outer edge of the fixing plate 44, and the circumference of the slide groove 442 is three quarters of a circle, and a limiting shaft 45 is fixedly distributed on the side of the flip frame 32, the limiting shaft 45 penetrates and is connected to the slide groove 442, and the outer end of the limiting shaft 45 is connected to a locking bolt 451 through a thread;

[0060] Among them, multiple fixed columns 441 are used to support the fixed plate 44 with high strength, the limiting shaft 45 is used to assist the flipping adjustment of the flip frame 32 more stably, the slide groove 442 is used to limit the sliding limiting shaft 45, and the locking bolt 451 is used to lock the limiting shaft 45 to the outer end of the slide groove 442, so as to further stably support the flip frame 32. The circumference of the slide groove 442 is three quarters of a circle, so that the flipping adjustment angle of the flip frame 32 is within 270 degrees, thereby improving the flipping adjustment range.

[0061] According to some embodiments of the present application, a limiting rod 53 is fixedly provided at the bottom side end of the hydraulic rod three 51, and a positioning block 52 is fixedly provided at the front end of the flip frame 32. A limiting hole 521 is provided inside the positioning block 52, and the limiting rod 53 is connected to the limiting hole 521 through the limiting hole 521; the limiting hole 521 is used for movably adjusting the limiting rod 53, thereby assisting the lifting and lowering adjustment of the hydraulic rod three 51 to make it more stable.

[0062] According to some embodiments of the present application, the safety protection auxiliary drilling device 8 includes a mounting ring 81, a bracket 1 82, an electric push rod device 2 83, a bracket 2 84, an electric push rod device 3 85 and an auxiliary protection plate 86, the mounting ring 81 is sleeved on the outside of the driving motor 6, a locking bolt 811 is distributed around the mounting ring 81 through a threaded connection, the bracket 1 82 is fixed to the front and rear ends of the mounting ring 81, the electric push rod device 2 83 longitudinally penetrates the bracket 1 82 and is connected to the push rod 2 831, the bracket 2 84 is fixed to the bottom of the push rod 2 831, the electric push rod device 3 85 transversely penetrates the bracket 2 84 and is connected to the push rod 3 851, and the auxiliary protection plate 86 is fixed to the inner end of the push rod 3 851;

[0063] Among them, the mounting ring 81 is used to install the safety protection auxiliary drilling device 8 on the outside of the driving motor 6, the locking bolt 811 is used for tightness adjustment to facilitate disassembly and assembly of the safety protection auxiliary drilling device 8 to the outside of the driving motor 6, the electric push rod device 2 83 and the push rod 2 831 are used to lift and adjust the height of the bracket 2 84, and the electric push rod device 3 85 and the push rod 3 851 are used to telescopically adjust the position of the auxiliary protection plate 86, so that it can stably clamp the drill barrel 7 to assist in stable rotation drilling.

[0064] According to some embodiments of the present application, the inner side of the auxiliary protective plate 86 is an arc-shaped structure, and a fixed frame 862 is fixedly distributed on the inner wall of the auxiliary protective plate 86. Axle seats 864 are fixedly provided at the upper and lower ends of the interior of the fixed frame 862. A movable shaft 863 is rotatably connected between the axle seats 864. An auxiliary roller 861 is fixedly provided in the middle of the movable shaft 863, and the auxiliary roller 861 is a spherical structure.

[0065] The auxiliary protective plate 86 with an arc-shaped inner side fits the drill tube 7 more closely, the shaft seat 864 is used to movably support the rotation of the movable shaft 863, and the movable shaft 863 is used to fix the auxiliary roller 861 with a spherical structure to enable its rotation to be adjusted. Multiple groups of auxiliary rollers 861 directly contact the outer wall of the drill tube 7 to make the rotation more stable.

[0066] According to some embodiments of the present application, anti-sway positioning structures are provided on both sides of the auxiliary protective plate 86, and the anti-sway positioning structures include an electric push rod device 87, an extension plate 88 and a metal docking plate 881. The extension plate 88 is fixed to the side end of the auxiliary protective plate 86, and the electric push rod device 87 is connected through the extension plate 88 at the front end. The output end of the electric push rod device 87 is connected to a push rod 871, and a magnetic block 872 is fixed at the end of the push rod 871. The metal docking plate 881 is connected through the extension plate 88 at the rear end, and a positioning groove 882 is opened at the front end of the metal docking plate 881. The magnetic block 872 is positioned and inserted into the positioning groove 882.

[0067] Among them, the extension plates 88 on both sides of the auxiliary protective plate 86 are respectively used to fix the electric push rod device four 87 and the metal docking plate 881. The electric push rod device four 87 and the push rod four 871 are used to control the telescopic adjustment of the magnetic suction block 872. The positioning groove 882 is used to position the magnetic suction block 872 so that it can be strongly adsorbed and positioned, and the auxiliary drill tube 7 is more stable and anti-shaking when rotating.

[0068] Working principle: The handheld handle frame 142 pulls the device as a whole through the pull rod 141, and multiple universal wheels 122 at the bottom enable it to move flexibly in the complex karst terrain, which is suitable for bridge pile foundation construction under complex geological conditions such as karst areas;

[0069] After moving to a suitable position, the control device 21 starts the electric hydraulic device 1 2, controls the lifting and lowering of the hydraulic rod 1 22 and the hydraulic rod 2 24 through the hydraulic pipeline, and the auxiliary support plate 23 is stably lifted and lowered through multiple auxiliary telescopic rods 26, and finally contacts the ground through multiple support seats 25 to stabilize the support device as a whole;

[0070] Start the drive motor 2 6 to automatically control the drive shaft 2 61 to rotate, drive the drill tube 7 to drill holes and take samples at high speed, and start the electric hydraulic device 2 5 to automatically control the lifting and lowering adjustment of the hydraulic rod 3 51, so that the drill tube 7 drills holes at the pile foundation to take samples;

[0071] During the process, the safety protection auxiliary drilling device 8 is used for safety protection, the electric push rod device 2 83 and the electric push rod device 3 85 are started, and the push rod 2 831 and the push rod 3 851 are automatically controlled to be telescopically adjusted so that the auxiliary protection plate 86 clamps and positions the drill tube 7 at different heights, making the rotation and drilling more stable and reducing the shaking coefficient. Multiple auxiliary rollers 861 contact the outer wall of the drill tube 7, thereby enhancing the accuracy, efficiency and safety of drilling. At the same time, the electric push rod device 4 87 is started to automatically control the push rod 4 871 and the magnetic suction block 872, so that they are inserted and positioned at the positioning groove 882 of the metal docking plate 881, further ensuring the safety of the auxiliary drill tube 7 for drilling and sampling.

[0072] When it is necessary to drill holes at different angles for sampling, the electric push rod device 1 431 of the positioning support mechanism 43 is started to automatically control the push rod 1 432 to adjust the extension and contraction, so that the multiple positioning heads 434 on the top of the end plate 433 are located inside the second positioning hole 322 and moved out;

[0073] The locking bolt 451 is loosened and adjusted, and the driving motor 41 is started to automatically control the driving shaft 411 to rotate, and the flipping frame 32 is controlled to flip and adjust, so that the double-group limit shaft 45 is located in the slide groove 442 and slides within a limited position, so that the flipping frame 32 can flip more stably, and the locking bolt 451 is tightened and adjusted to lock the limit shaft 45, and the positioning support mechanism 43 is started again so that the multiple positioning heads 434 are inserted into the positioning hole 321 to fix and support the flipping frame 32. The positioning support mechanism 43 is only started when the construction drilling mechanism is downward or forward to position and support the flipping frame 32, so that it can maintain more stable drilling sampling, and is convenient for flipping and adjusting the construction drilling mechanism according to the construction requirements of bridge pile foundations in karst areas, so as to facilitate accurate and stable drilling sampling at different angles.

[0074] The mobile vehicle body 1, the cross bar 11, the pillar 12, the pillar 2 121, the universal wheel 122, the lining rod 13, the fixed seat 14, the pull rod 141, the handle frame 142, the shaft frame 143, the support frame 144, the bottom plate 145, the steering wheel 146, the electric hydraulic device 2, the control device 21, the hydraulic rod 122, the support plate 23, the hydraulic rod 24, the support seat 25, the auxiliary telescopic rod 26, the fixed frame 3, the groove 31, the flip frame 32, the positioning hole 1 321, the positioning hole 2 322, the driving motor 1 41, the driving shaft 1 411, the support 412, the shaft cylinder 42, the positioning support mechanism 43, the electric push rod device 1 431, the push rod 1 432, the end plate 433, the positioning head 434, the limit ring 435, the support rod 43 6. Fixed plate 44, fixed column 441, slide 442, limit shaft 45, locking bolt 451, electric hydraulic device II 5, hydraulic rod III 51, positioning block 52, limiting hole 521, limiting rod 53, drive motor II 6, drive shaft II 61, drill tube 7, safety protection auxiliary drilling device 8, mounting ring 81, locking bolt 811, bracket I 82, electric push rod device II 83, push rod II 831, bracket II 84, electric push rod device III 85, push rod III 851, auxiliary protective plate 86, auxiliary roller 861, fixed frame 862, movable shaft 863, shaft seat 864, electric push rod device IV 87, push rod IV 871, magnetic block 872, extension plate 88, metal docking plate 881, positioning groove 882, etc. are all universal standard The structure and principle of the parts are known to the technicians in this field through the technical manual or conventional experimental methods. The problem solved by the present invention is that it is not applicable to bridge pile foundation drilling sampling under complex geological conditions such as karst areas. Most drilling devices only have directional drilling sampling and cannot adjust the drilling angle. There are too many uncertain factors in the drilling process, which are difficult to protect safely. The drilling process may be unstable and tilted, and the accuracy and efficiency may be reduced. The present invention enhances the mobility and stability of the device through the combination of the above-mentioned parts, by setting the support and universal wheel 122 under the mobile body 1, so that it can move flexibly in the complex karst terrain, and is suitable for bridge pile foundation drilling under complex geological conditions such as karst areas. Hole sampling, through the flip frame 32 connected to the fixing frame 3 through the flip mechanism, it is convenient to flip and adjust the construction drilling mechanism according to the construction requirements of the bridge pile foundation in the karst area, so as to facilitate accurate and stable drilling sampling at different angles. The electric hydraulic device 25 and the driving motor 6 are provided to enable the drill tube 7 to automatically lift and control the drilling sampling, and the safety protection auxiliary drilling device 8 is provided on the outside of the drill tube 7. The all-round protection design can effectively improve the stability of the drilling process and reduce the shaking coefficient during the drilling process. Multiple sets of auxiliary rollers 861 can be flexibly adjusted with the rotation of the drill tube 7 during the drilling process, thereby enhancing the accuracy, efficiency and safety of drilling, and further enhancing its application value in bridge pile foundation drilling sampling.

[0075] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drilling sampling device for bridge pile foundation construction in karst areas, characterized in that: It comprises a mobile body (1), a fixed frame (3), a turning mechanism, an electric hydraulic device (5), a driving motor (6) and a drill tube (7); the bottom of the mobile body (1) is connected to a universal wheel (122) to enable the device to move; The fixed frame (3) is an L-shaped plate-like structure fixedly arranged at the front end of the mobile vehicle body (1), the flipping mechanism is arranged at the upper part of the fixed frame (3), and the flipping mechanism is connected to a flipping frame (32) having an L-shaped plate-like structure, and the fixed frame (3) and the flipping frame (32) are arranged in an opposite structure; The second electric hydraulic device (5) is arranged on the turning frame (32), the bottom of the second electric hydraulic device (5) is connected to the third hydraulic rod (51), the driving motor (6) is installed at the bottom of the third hydraulic rod (51), the bottom of the driving motor (6) is connected to the second driving shaft (61), and the drill tube (7) is installed at the bottom of the second driving shaft (61); A safety protection auxiliary drilling device (8) is provided on the outside of the drill tube (7), and the safety protection auxiliary drilling device (8) is installed on the outside of the driving motor (6).

2. The drilling sampling device for bridge pile foundation construction in karst areas according to claim 1 is characterized in that: The rear end of the mobile vehicle body (1) is connected to a fixed seat (14), a support frame (144) is provided on the fixed seat (14), an axle frame (143) is movably connected to the support frame (144), a pull rod (141) is provided on the axle frame (143), and a steering wheel (146) is also rotatably connected to the fixed seat (14).

3. The drilling sampling device for bridge pile foundation construction in karst areas according to claim 1 is characterized in that: The mobile vehicle body (1) is provided with an electric hydraulic device (2), the electric hydraulic device (2) is electrically connected to a control device (21), the bottom of the electric hydraulic device (2) is connected to a hydraulic rod (22), the bottom of the hydraulic rod (22) is fixedly provided with a support plate (23), the bottom of the fixed frame (3) is connected to a hydraulic rod (24), the hydraulic rod (24) is connected to the electric hydraulic device (2) through a hydraulic pipeline, the bottom of the support plate (23) and the bottom of the hydraulic rod (24) are both fixedly provided with a support seat (25), and an auxiliary telescopic rod (26) is provided between the support plate (23) and the mobile vehicle body (1).

4. The drilling sampling device for bridge pile foundation construction in karst areas according to claim 1 is characterized in that: The fixing frame (3) is provided with a groove (31), the bottom of the turning frame (32) is placed in the groove (31), and a plurality of positioning holes are provided along the circumferential direction; The flipping mechanism comprises a driving motor (41) and a positioning support mechanism (43); a driving shaft (411) is connected through the bottom of the flipping frame (32); the driving shaft (411) is rotatably connected to the upper end of the groove (31); the driving motor (41) is connected to the driving shaft (411); and the positioning support mechanism (43) is arranged at the bottom of the groove (31) and is used to lock the corresponding positioning hole after the flipping frame (32) rotates.

5. The drilling sampling device for bridge pile foundation construction in karst areas according to claim 4 is characterized in that: The positioning support mechanism (43) comprises an electric push rod device (431), an end plate (433) and a positioning head (434); the electric push rod device (431) is fixedly arranged at the bottom of the groove (31); the top of the electric push rod device (431) is connected to a push rod (432); the end plate (433) is laterally fixedly arranged at the top of the push rod (432); the positioning head (434) is fixedly arranged on the end plate (433) and cooperates with the positioning hole; the outer side of the push rod (432) is slidably sleeved with a limiting ring (435); the outer side wall of the limiting ring (435) is fixedly connected to the wall of the groove (31).

6. The drilling sampling device for bridge pile foundation construction in karst areas according to claim 5 is characterized in that: A fixing plate (44) is fixedly provided on the side of the fixing frame (3), a sliding groove (442) is provided on the fixing plate (44) along the circumferential direction, a limiting shaft (45) is fixedly provided on the side of the flip frame (32), the limiting shaft (45) is connected through the sliding groove (442), and the outer end of the limiting shaft (45) is connected to a locking bolt (451) through a thread.

7. The drilling sampling device for bridge pile foundation construction in karst areas according to claim 1 is characterized in that: A limiting rod (53) is fixedly provided on the bottom outer wall of the hydraulic rod three (51), a positioning block (52) is fixedly provided on the front end of the flip frame (32), a limiting hole (521) is provided on the positioning block (52), and the limiting rod (53) penetrates and is connected in the limiting hole (521).

8. The drilling sampling device for bridge pile foundation construction in karst areas according to claim 1 is characterized in that: The safety protection auxiliary drilling device (8) comprises a mounting ring (81), a bracket one (82), an electric push rod device two (83), a bracket two (84), an electric push rod device three (85) and an auxiliary protection plate (86), wherein the mounting ring (81) is fixedly sleeved on the outside of the driving motor (6), the bracket one (82) is fixedly arranged at the front and rear ends of the mounting ring (81), the electric push rod device two (83) longitudinally penetrates the bracket one (82) and is connected to the push rod two (831), the bracket two (84) is fixedly arranged at the bottom of the push rod two (831), the electric push rod device three (85) transversely penetrates the bracket two (84) and is connected to the push rod three (851), and the auxiliary protection plate (86) is fixedly arranged at the inner end of the push rod three (851).

9. The drilling sampling device for bridge pile foundation construction in karst areas according to claim 8, characterized in that: The inner side of the auxiliary protective plate (86) is an arc-shaped structure, and a plurality of fixed frames (862) are fixedly distributed on the inner side wall of the auxiliary protective plate (86), and an auxiliary roller (861) is rotatably arranged inside each of the fixed frames (862), and the auxiliary roller (861) is a spherical structure.

10. The drilling sampling device for bridge pile foundation construction in karst areas according to claim 9, characterized in that: Anti-sway positioning structures are provided on both sides of the auxiliary protective plate (86), and the anti-sway positioning structures include an electric push rod device four (87), an extension plate (88) and a metal docking plate (881). The extension plate (88) is fixedly arranged on the side end of the auxiliary protective plate (86). The electric push rod device four (87) is located at the front end of the extension plate (88). The output end of the electric push rod device four (87) is connected to a push rod four (871). A magnetic block (872) is fixedly arranged at the end of the push rod four (871). The metal docking plate (881) is located at the rear end of the extension plate (88). A positioning groove (882) is opened on the metal docking plate (881), and the magnetic block (872) is positioned and inserted into the positioning groove (882).

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