Automatic drilling equipment for groundwater or soil testing and sampling

Abstract

The present invention relates to the field of sampling drilling technology, and in particular to an automatic drilling device for groundwater or soil detection sampling, comprising: a positioning plate, wherein positioning rods are installed at the four corners of the lower end of the positioning plate; a lifting device, wherein the lifting device is connected to the upper end of the positioning plate; a transmission device, wherein the transmission device is connected to the lifting device, wherein the transmission device comprises a driving module connected to the lifting device, wherein the lower end of the driving module is fixedly connected to a cylindrical frame, and the annular side wall of the cylindrical frame is connected to a plurality of circumferentially evenly distributed clamping mechanisms. The transmission device used in the present invention can realize the function of rapid splicing and disassembly between the extension device, and the function of rapid splicing and disassembly between multiple extension devices can also be realized, thereby effectively improving the speed of splicing the extension device during the drilling process, thereby improving the efficiency of drilling.

Description

Technical Field

[0001] The invention relates to the technical field of sampling drilling, and in particular to an automatic drilling device for groundwater or soil detection sampling. Background Art

[0002] In the fields of geology, engineering, environmental science, etc., drilling is a common preparation before sampling. Drilling can effectively reach the required sampling location and assist in obtaining underground information, assessing geological conditions, monitoring groundwater and resource exploration.

[0003] When drilling holes at sampling locations using existing technology, the drilling machine is usually first fixed at the marked position, and then the splicing tube and the drill bit are connected to the motor, the motor is started, and the motor drives the splicing tube and the drill bit to rotate, thereby drilling holes in the soil. When the splicing tube rotates into the soil, the motor is turned off and the connection between the motor and the splicing tube is released. Then the next splicing tube is selected, and the splicing tube is connected between the motor and the splicing tube in the soil. The motor is started again, and the motor continues to rotate the hole through the splicing tube and the drill bit. The steps of splicing the splicing tubes are repeated until the depth of the drilling reaches the requirement, and then the motor is turned off and sampling is performed. However, when splicing multiple splicing tubes, two splicing tubes are usually plugged together first, and then the connection between the two splicing tubes is connected by bolts. The connection efficiency is low, and the connection between the two splicing tubes is only connected by bolts, which is prone to bending when subjected to a large external force, thereby affecting the accuracy of drilling. Summary of the invention

[0004] Based on this, it is necessary to provide an automatic drilling device for groundwater or soil detection sampling, aiming to solve the problems caused by drilling holes in the soil at the sampling location in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme to achieve: an automatic drilling device for groundwater or soil detection sampling, comprising: a positioning plate, and positioning rods are installed at the four corners of the lower end of the positioning plate.

[0006] It also includes a lifting device, which is connected to the upper end of the positioning plate.

[0007] It also includes a transmission device, which is connected to the lifting device. The transmission device includes a driving module connected to the lifting device. The lower end of the driving module is fixedly connected to a cylindrical frame, and the annular side wall of the cylindrical frame is connected to a plurality of circumferentially evenly distributed clamping mechanisms. The lower end of the cylindrical frame is equipped with a plurality of circumferentially evenly distributed plug-in rods.

[0008] It also includes an extension device, which is provided with multiple extension devices and is evenly distributed from top to bottom. Two adjacent extension devices are detachably linked, and the extension device located at the top is detachably connected to the transmission device. The extension device includes a cylindrical barrel arranged below the cylindrical frame, and a plurality of circumferentially evenly distributed plug-in mechanisms are connected to the cylindrical barrel wall near the upper end. A plurality of circumferentially evenly distributed clamping countersunk holes are also opened on the inner wall of the cylindrical barrel near the upper end, and a splicing mechanism is connected to the lower end of the inner wall of the cylindrical barrel. The outer wall of the cylindrical barrel is installed with a first threaded leaf.

[0009] It also includes a drill bit device, which is arranged at the lower end of the cylindrical tube located at the bottom. The drill bit device includes a cylindrical frame fixedly connected to the lower end of the cylindrical tube located at the bottom, and the lower end of the cylindrical frame is hinged with a plurality of circumferentially evenly distributed fan-shaped arc plates, and a limiting block is installed on the inner arc surface of the fan-shaped arc plate, and a limiting groove is provided on the upper end of the limiting block. A limiting mechanism is connected to the inner wall of the cylindrical frame, a second threaded leaf is installed on the outer frame wall of the cylindrical frame, and a third threaded leaf is installed on the outer arc surface of the fan-shaped arc plate.

[0010] According to an embodiment of the present invention, the lifting device includes a lifting frame installed on the upper end of the positioning plate, a guide column is installed in the lifting frame, a lifting module is slidably connected to the guide column, and the lifting module is fixedly connected to the driving module.

[0011] According to an embodiment of the present invention, the extension device also includes a plurality of guide grooves evenly distributed circumferentially and opened at the upper end of the inner wall of the cylindrical tube, the guide groove is an L-shaped structure, and the upper end of the cylindrical tube is provided with a plurality of plug-in holes evenly distributed circumferentially.

[0012] According to an embodiment of the present invention, the clamping mechanism includes a T-shaped cylindrical rod installed on the inner wall of the cylindrical frame, a sliding plate is slidably sleeved on the horizontal section of the T-shaped cylindrical rod, a return spring is installed between the sliding plate and the vertical section of the T-shaped cylindrical rod, a pressing block is installed on the upper side of one end of the sliding plate close to the cylindrical frame wall, the pressing block is slidably connected to the cylindrical frame wall, a clamping block is installed on the lower side of one end of the sliding plate close to the cylindrical frame wall, and a slope is provided at the lower end of the clamping block.

[0013] According to an embodiment of the present invention, the plug-in mechanism includes an L-shaped hole opened on the wall of the cylindrical tube, an L-shaped plate is slidably connected in the L-shaped hole, a connecting spring is installed between the vertical section of the L-shaped plate and the hole wall of the vertical section of the L-shaped hole, a traction handle is installed on the vertical section of the L-shaped plate, a slope is provided at the upper end of the horizontal section of the L-shaped plate, and a barrier branch chain is connected to the lower end of the horizontal section of the L-shaped plate.

[0014] According to an embodiment of the present invention, the splicing mechanism includes a circular ring frame installed on the inner wall of the cylindrical tube near the lower end, a plurality of circumferentially evenly distributed arc-shaped connecting holes are opened at the lower end of the circular ring frame, the aperture of one end of the arc-shaped connecting hole is larger than the aperture of the other end, a plurality of circumferentially evenly distributed splicing holes are opened on the annular side wall of the circular ring frame near the lower end, a plurality of circumferentially evenly distributed connecting cylinders are installed on the upper end of the circular ring frame, a baffle is installed on the upper end of the connecting cylinder, a plurality of guide branch chains evenly distributed from top to bottom are commonly connected to the plurality of connecting cylinders, and a plurality of circumferentially evenly distributed sliding blocks are installed at the lower end of the outer ring surface of the circular ring frame.

[0015] According to an embodiment of the present invention, the limiting mechanism includes a plurality of positioning columns evenly distributed in the circumference and installed on the inner wall of the cylindrical frame, two cylindrical rollers are arranged below the positioning columns, the cylindrical rollers are rotatably connected to the inner wall of the cylindrical frame, a rotating plate is rotatably connected to the positioning column via a torsion spring, a traction rope is fixedly connected to one end of the rotating plate, and the other ends of the plurality of traction ropes are passed around the corresponding two cylindrical rollers and a limiting ring is installed together.

[0016] According to an embodiment of the present invention, the barrier branch chain includes a sliding countersunk hole provided at the lower end of the horizontal section of the L-shaped plate, and a barrier column is slidably connected in the sliding countersunk hole.

[0017] According to an embodiment of the present invention, the guide branch chain includes an annular plate fixedly connected to the plurality of connecting cylinders, the inner surface of the annular plate is provided with a plurality of circumferentially evenly distributed rotating grooves, the guide plate is rotatably connected in the rotating groove, and a support spring is installed between the guide plate and the rotating groove wall.

[0018] According to an embodiment of the present invention, a magnet is installed on the bottom wall of the limiting groove, and the magnet is magnetically matched with the limiting ring.

[0019] In summary, the present invention includes the following beneficial technical effects:

[0020] The transmission device and the extension device used in the present invention can realize the function of rapid splicing and disassembly, and the multiple extension devices can also realize the function of rapid splicing and disassembly, which effectively improves the speed of splicing the extension devices during the drilling process, thereby improving the drilling efficiency.

[0021] The extension devices used in the present invention can achieve multi-point connection, and the connection operation is simple and convenient, which effectively improves the strength of the connection between the two extension devices, avoids the problem of stress bending at the connection between the two extension devices, ensures the accuracy of drilling, and avoids damage to the drilling equipment.

[0022] The extension device used in the present invention cooperates with the drill bit device to enable the sampler to move from the inside of the extension device and the drill bit device to the sampling position, and can guide the sampler to avoid damage to the sampler, while effectively preventing the influence of soil or groundwater at other depths on the sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle is shown.

[0025] Figure 2 A schematic diagram of the second viewing angle stereoscopic structure of the present invention is shown.

[0026] Figure 3 A front view of the present invention is shown.

[0027] Figure 4 A left side view of the present invention is shown.

[0028] Figure 5 Shows Figure 4 Sectional view of AA.

[0029] Figure 6 Shows Figure 5 Magnified view of the middle N region.

[0030] Figure 7 A cross-sectional view of a transmission device according to the present invention is shown.

[0031] Figure 8 A schematic structural diagram of the extending device of the present invention is shown.

[0032] Fig. 9 A cross-sectional view of an extension device of the present invention is shown.

[0033] Fig.10 A cross-sectional view of a drill head assembly of the present invention is shown.

[0034] The above drawings include the following reference numerals: 1. positioning plate; 11. positioning rod; 2. lifting device; 21. lifting frame; 22. guide column; 23. lifting module; 3. transmission device; 31. drive module; 32. cylindrical frame; 33. clamping mechanism; 331. T-shaped cylindrical rod; 332. sliding plate; 333. return spring; 334. pressing block; 335. clamping block; 34. plug-in rod; 4. extension device; 41. cylindrical tube; 42. plug-in mechanism; 421. L-shaped hole; 422. L-shaped plate; 423. connecting spring; 424. traction handle; 425. partition branch chain; 4251. sliding countersunk hole ; 4252, barrier column; 43, snap-on countersunk hole; 44, splicing mechanism; 441, circular ring frame; 442, arc-shaped connecting hole; 443, splicing connecting hole; 444, connecting cylinder; 445, baffle; 446, guide branch chain; 4461, annular plate; 4462, rotating groove; 4463, guide plate; 4464, supporting spring; 447, sliding block; 45, guide groove; 46, plug-in hole; 5, drill device; 51, cylindrical frame; 52, fan-shaped arc plate; 53, limit block; 54, limit mechanism; 541, positioning column; 542, cylindrical roller; 543, rotating plate; 544, traction rope; 545, limit ring. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0036] See also Figure 1-Figure 4 An automatic drilling device for groundwater or soil detection sampling includes a positioning plate 1, and positioning rods 11 are installed at the four corners of the lower end of the positioning plate 1.

[0037] During the specific operation, the positioning plate 1 is lifted to the drilling position by an existing crane, and then the positioning plate 1 is pressed, and the positioning plate 1 is inserted into the ground through four positioning rods 11 to achieve the positioning of the positioning plate 1.

[0038] See also Figure 1 and Figure 5 The automatic drilling equipment for groundwater or soil detection sampling also includes a lifting device 2, which is connected to the upper end of the positioning plate 1. The lifting device 2 includes a lifting frame 21 installed on the upper end of the positioning plate 1, and a guide column 22 is installed in the lifting frame 21. A lifting module 23 is slidably connected to the guide column 22.

[0039] During specific operation, the positioning plate 1 fixes the lifting frame 21 at the working position. The lifting module 23 is an existing device that can be lifted up and down. The lifting module 23 is located at the uppermost end of the lifting frame 21 .

[0040] See also Figure 1 , Figure 5 and Figure 6 The automatic drilling equipment for groundwater or soil detection sampling also includes a transmission device 3, which is connected to the lifting device 2. The transmission device 3 includes a driving module 31 connected to the lifting device 2. The lifting module 23 is fixedly connected to the driving module 31. The lower end of the driving module 31 is fixedly connected to a cylindrical frame 32. The annular side wall of the cylindrical frame 32 is connected to a plurality of circumferentially evenly distributed clamping mechanisms 33. The lower end of the cylindrical frame 32 is installed with a plurality of circumferentially evenly distributed plug rods 34.

[0041] During specific operation, the driving module 31 is an existing rotating motor. Before operation, the lifting module 23 drives the driving module 31 to be located at the top wall of the lifting frame 21 , and the driving module 31 drives the cylindrical frame 32 and multiple clamping mechanisms 33 to be located at the top wall of the lifting frame 21 .

[0042] See also Figure 1 , Figure 5 , Figure 8 and Fig. 9 The automatic drilling equipment for groundwater or soil detection sampling also includes an extension device 4, which is provided with multiple extension devices 4 and is evenly distributed from top to bottom. Two adjacent extension devices 4 are detachably connected, and the extension device 4 located at the top is detachably connected to the cylindrical frame 32. The extension device 4 includes a cylindrical barrel 41 arranged below the cylindrical frame 32, and a plurality of circumferentially evenly distributed plug-in mechanisms 42 are connected to the wall of the cylindrical barrel 41 near the upper end. A plurality of circumferentially evenly distributed clamping countersunk holes 43 are also opened on the inner wall of the cylindrical barrel 41 near the upper end. A splicing mechanism 44 is connected to the lower end of the inner wall of the cylindrical barrel 41, and a first threaded leaf is installed on the outer wall of the cylindrical barrel 41.

[0043] See also Figure 1 , Figure 6 and Fig. 9 The extension device 4 also includes a plurality of guide grooves 45 evenly distributed in the circumference and opened at the upper end of the inner wall of the cylindrical tube 41. The guide groove 45 is an L-shaped structure. The upper end of the cylindrical tube 41 is provided with a plurality of plug-in holes 46 evenly distributed in the circumference.

[0044] See also Figure 5 and Figure 7The clamping mechanism 33 includes a T-shaped cylindrical rod 331 installed on the inner wall of the cylindrical frame 32, a sliding plate 332 is slidably sleeved on the horizontal section of the T-shaped cylindrical rod 331, a return spring 333 is installed between the sliding plate 332 and the vertical section of the T-shaped cylindrical rod 331, a pressing block 334 is installed on the upper side of one end of the sliding plate 332 close to the frame wall of the cylindrical frame 32, the pressing block 334 is slidably connected with the frame wall of the cylindrical frame 32, a clamping block 335 is installed on the lower side of one end of the sliding plate 332 close to the frame wall of the cylindrical frame 32, and the lower end of the clamping block 335 is provided with an inclined surface.

[0045] In the specific work, a cylindrical tube 41 is manually taken before work, and then the cylindrical tube 41 is moved to the lower end of the cylindrical frame 32. In this process, the cylindrical tube 41 pushes the inclined surface of the lower end of the multiple clamping blocks 335, and the multiple clamping blocks 335 are driven by the force to move the corresponding sliding plates 332, and the sliding plates 332 drive the pressing blocks 334 to move inside the cylindrical frame 32 and squeeze the return spring 333, thereby releasing the obstruction of the multiple clamping blocks 335 on the cylindrical tube 41, and then the upper end of the cylindrical tube 41 is tightly attached to the lower end of the cylindrical frame 32, and the multiple plug-in rods 335 are connected. 4 is plugged and matched with the corresponding plug-in holes 46, and at the same time, the multiple clamping blocks 335 move to the corresponding clamping countersunk holes 43, and the compressed reset spring 333 is reset and drives the clamping blocks 335 to move into the clamping countersunk holes 43 through the sliding plate 332, thereby realizing the function of quick connection between the cylindrical tube 41 and the cylindrical frame 32, and the connection operation is simple and convenient, the multiple plug-in rods 34 are plugged and matched with the multiple plug-in holes 46, and the multiple clamping blocks 335 are matched with the multiple clamping countersunk holes 43, which effectively improves the strength of the rotation transmission between the cylindrical tube 41 and the cylindrical frame 32.

[0046] See also Figure 5 and Figure 6 The plug-in mechanism 42 includes an L-shaped hole 421 opened on the wall of the cylindrical tube 41, an L-shaped plate 422 is slidably connected in the L-shaped hole 421, a connecting spring 423 is installed between the vertical section of the L-shaped plate 422 and the hole wall of the vertical section of the L-shaped hole 421, a traction handle 424 is installed on the vertical section of the L-shaped plate 422, a slope is provided at the upper end of the horizontal section of the L-shaped plate 422, and a blocking branch chain 425 is connected to the lower end of the horizontal section of the L-shaped plate 422.

[0047] See also Figure 5 , Figure 8 and Fig. 9The splicing mechanism 44 includes a circular frame 441 installed on the inner wall of the cylindrical tube 41 near the lower end, a plurality of arc-shaped connecting holes 442 uniformly distributed in the circumference are opened at the lower end of the circular frame 441, and the aperture of one end of the arc-shaped connecting hole 442 is larger than the aperture of the other end. A plurality of splicing holes 443 uniformly distributed in the circumference are opened on the annular side wall of the circular frame 441 near the lower end, a plurality of connecting cylinders 444 uniformly distributed in the circumference are installed on the upper end of the circular frame 441, a baffle 445 is installed on the upper end of the connecting cylinder 444, and a plurality of guide branches 446 uniformly distributed from top to bottom are commonly connected to the plurality of connecting cylinders 444, and a plurality of sliding blocks 447 uniformly distributed in the circumference are installed at the lower end of the outer ring surface of the circular frame 441.

[0048] See also Figure 1 The automatic drilling equipment for groundwater or soil detection sampling also includes a drill bit device 5.

[0049] When the cylindrical barrel 41 is fixedly connected to the drill bit device 5, the cylindrical barrel 41 is moved toward the circular frame 441 installed in the cylindrical barrel 41 at the lower end of the cylindrical frame 32. The multiple sliding blocks 447 on the circular frame 441 at the top are simultaneously inserted into the multiple guide grooves 45 on the cylindrical barrel 41 at the bottom, and then the cylindrical barrel 41 at the bottom is pushed upward, and the sliding blocks 447 slide along the vertical sections of the guide grooves 45. In this process, the large-diameter ends of the multiple arc-shaped connecting holes 442 on the circular frame 441 pass through the multiple baffles 445 and are sleeved on the multiple connecting cylinders 444. At the same time, the circular frame 441 pushes the slopes on the horizontal sections of the multiple L-shaped plates 422. The L-shaped plates 422 are forced to move toward the outside of the cylindrical barrel 41 and stretch the connecting springs 423, thereby avoiding affecting the movement of the cylindrical barrel 41 below. When the sliding block 447 moves to the lower end of the vertical section of the guide groove 45, the sliding block 447 at the bottom is rotated. The square cylindrical tube 41, the rotating cylindrical tube 41 drives the guide groove 45 to rotate, and the horizontal section of the guide groove 45 slides relative to the sliding block 447, and the rotating cylindrical tube 41 drives multiple L-shaped plates 422 to move to the splicing hole 443, and the connecting spring 423 in the stretched state is reset and drives the horizontal section of the L-shaped plate 422 to move into the corresponding splicing hole 443, so as to realize the function of quick splicing of the two cylindrical tubes 41, and at the same time, the rotating cylindrical tube 41 drives the baffle 445 at the upper end of the multiple connecting cylinders 444 to move to the upper end of the small aperture end of the corresponding arc-shaped connecting hole 442, thereby realizing the function of connecting the multiple connecting cylinders 444 below with the circular ring frame 441 above, and the multiple sliding blocks 447 above are connected with the horizontal sections of the multiple guide grooves 45 below, which effectively improves the strength of the connection between the two cylindrical tubes 41, avoids the bending of the connection between the two cylindrical tubes 41 due to external force, and ensures the accuracy of subsequent drilling.

[0050] See also Figure 1 , Figure 5 and Fig.10 The drill bit device 5 is arranged at the lower end of the cylindrical tube 41 located at the bottom, and the drill bit device 5 includes a cylindrical frame 51 fixedly connected to the lower end of the cylindrical tube 41 located at the bottom, and a plurality of circumferentially evenly distributed fan-shaped arc plates 52 are hinged at the lower end of the cylindrical frame 51, and a limiting block 53 is installed on the inner arc surface of the fan-shaped arc plate 52, and a limiting groove is provided at the upper end of the limiting block 53. A limiting mechanism 54 is connected to the inner wall of the cylindrical frame 51, and a second threaded leaf is installed on the outer frame wall of the cylindrical frame 51, and a third threaded leaf is installed on the outer arc surface of the fan-shaped arc plate 52.

[0051] During specific operation, the limit block 53 limits the multiple fan-shaped arc plates 52 during drilling, thereby improving the strength of the fit between the multiple fan-shaped arc plates 52, preventing the multiple fan-shaped arc plates 52 from shaking left and right after being stressed, and preventing the multiple fan-shaped arc plates 52 from being misaligned when drilling holes. After the lowermost cylindrical tube 41 is spliced ​​with the upper cylindrical tube 41, the function of connecting the cylindrical frame 51 with the cylindrical frame 32 is realized, and then the driving module 31 is started, the driving module 31 drives the cylindrical frame 32 to rotate, the cylindrical frame 32 drives the multiple cylindrical tubes 41 to rotate, and the multiple cylindrical tubes 41 drive the first threaded leaves to rotate. At the same time, the cylindrical tube 41 drives the cylindrical frame 51 and the multiple fan-shaped arc plates 52 to rotate, and the cylindrical frame 51 and the multiple fan-shaped arc plates 52 respectively drive the second threaded leaves and the third threaded leaves to rotate, and then the lifting module 23 is started, and the lifting module 23 drives the driving module 31 to descend, and the driving module 31 drives the cylindrical frame 32, the cylindrical tube 41, the cylindrical frame 51 and the multiple fan-shaped arc plates 52 to rotate. The arc plate 52 descends, and the rotating first thread leaf, second thread leaf and third thread leaf drill the designated position. When the upper end of the cylindrical barrel 41 located above rotates to a certain height from the ground, the driving module 31 stops working, and a plurality of pressing blocks 334 are pressed at the same time. The pressing blocks 334 drive the clamping blocks 335 to separate from the corresponding clamping countersunk holes 43 through the sliding plates 332, thereby realizing the function of separating the cylindrical frame 32 from the cylindrical barrel 41. The lifting module 23 drives the cylindrical frame 32 to rise through the driving module 31, and then takes the new cylindrical barrel 41 again, and connects it between the cylindrical frame 32 and the cylindrical barrel 41 in the ground through the previous splicing method, thereby realizing the function of extending the drilling depth. Then, the driving module 31 and the lifting module 23 are started again, and the steps of splicing the cylindrical barrel 41 and working the driving module 31 and the lifting module 23 are repeated until the drilling depth reaches the requirement, and then the cylindrical frame 32 is separated from the cylindrical barrel 41.

[0052] See also Figure 5 , Figure 8 and Fig. 9The guide branch chain 446 includes an annular plate 4461 fixedly connected to the plurality of connecting cylinders 444, the inner surface of the annular plate 4461 is provided with a plurality of circumferentially evenly distributed rotating grooves 4462, a guide plate 4463 is rotatably connected in the rotating groove 4462, and a support spring 4464 is installed between the guide plate 4463 and the groove wall of the rotating groove 4462.

[0053] See also Figure 5 and Fig.10 The limiting mechanism 54 includes a plurality of positioning columns 541 evenly distributed in the circumference and installed on the inner wall of the cylindrical frame 51, two cylindrical rollers 542 are arranged below the positioning columns 541, and the cylindrical rollers 542 are rotatably connected to the inner wall of the cylindrical frame 51, and a rotating plate 543 is rotatably connected to the positioning column 541 through a torsion spring, and a traction rope 544 is fixedly connected to one end of the rotating plate 543, and the other ends of the plurality of traction ropes 544 pass around the corresponding two cylindrical rollers 542 and are jointly installed with a limiting ring 545, and a magnet is installed on the bottom wall of the limiting groove, and the magnet is magnetically matched with the limiting ring 545.

[0054] During specific work, when drilling is completed and sampling is carried out, the existing sampler enters the cylindrical barrel 41 from the upper end of the top cylindrical barrel 41 and moves downward, and the sampler presses down multiple guide plates 4463, and the guide plates 4463 guide the sampler in the center through the support springs 4464 to avoid collision between the sampler and the cylindrical barrel 41, until the lower end of the sampler moves to the upper end of the multiple rotating plates 543, and then the sampler continues to press down the multiple rotating plates 543, and the multiple rotating plates 543 rotate and drive the limit rings 545 to move upward and move out of the limit grooves of the multiple limit blocks 53 through the multiple traction ropes 544, thereby releasing the limit on the multiple fan-shaped arc plates 52, and the sampler continues to squeeze the multiple fan-shaped arc plates 52 and open the multiple fan-shaped arc plates 52, and then the sampler takes samples, and the multiple cylindrical barrels 41 and the column frame 51 cooperate to effectively block the soil or groundwater at the remaining depths to ensure that the sampled soil or groundwater is at the required sampling depth.

[0055] See also Figure 6 The blocking branch chain 425 includes a sliding countersunk hole 4251 opened at the lower end of the horizontal section of the L-shaped plate 422, and a blocking column 4252 is slidably connected in the sliding countersunk hole 4251.

[0056] During the specific work, after the sampling is completed, the cylindrical frame 32 is connected to the cylindrical barrel 41, and the driving module 31 is started to rotate it in the opposite direction, so as to take out the cylindrical barrel 41 in the soil. When one cylindrical barrel 41 is moved out of the soil, the driving module 31 is closed and the cylindrical frame 32 is separated from the cylindrical barrel 41, and then the multiple traction handles 424 on the top cylindrical barrel 41 are pulled in turn, and the traction handles 424 drive the L-shaped plate 422 to separate from the corresponding splicing hole 443. When the L-shaped plate 422 drives the blocking column 4252 in the sliding countersunk hole 4251 to move to the outside of the L-shaped hole 421, the blocking column 4252 slides out of the sliding countersunk hole 4251 to block the resetting of the L-shaped plate 422, thereby facilitating the separation of the two cylindrical barrels 41. Then, the steps of moving the cylindrical barrel 41 out of the soil and separating the two adjacent cylindrical barrels 41 are repeated until multiple cylindrical barrels 41 and the cylindrical frame 51 are moved out of the soil, the borehole is backfilled, and the drilling is completed.

[0057] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0058] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic drilling device for groundwater or soil detection sampling, comprising a positioning plate (1), wherein positioning rods (11) are installed at the four corners of the lower end of the positioning plate (1), characterized in that: Also includes: A lifting device (2) connected to the upper end of the positioning plate (1); A transmission device (3) connected to the lifting device (2), the transmission device (3) comprising a driving module (31) connected to the lifting device (2), the lower end of the driving module (31) being fixedly connected to a cylindrical frame (32), a plurality of circumferentially evenly distributed clamping mechanisms (33) being connected to the annular side wall of the cylindrical frame (32), and a plurality of circumferentially evenly distributed plug-in rods (34) being installed at the lower end of the cylindrical frame (32); The extension device (4) is provided with a plurality of extension devices that are evenly distributed from top to bottom, two adjacent extension devices (4) are detachably connected, and the extension device (4) located at the top is detachably connected to the transmission device (3), the extension device (4) comprises a cylindrical barrel (41) arranged below the cylindrical frame (32), a cylinder wall of the cylindrical barrel (41) is connected with a plurality of circumferentially evenly distributed plug-in mechanisms (42) near the upper end, the inner wall of the cylindrical barrel (41) is also provided with a plurality of circumferentially evenly distributed clamping countersunk holes (43), the lower end of the inner wall of the cylindrical barrel (41) is connected with a splicing mechanism (44), and the outer wall of the cylindrical barrel (41) is provided with a first threaded leaf; A drill bit device (5) is arranged at the lower end of the cylindrical tube (41) located at the bottom, and the drill bit device (5) comprises a columnar frame (51) fixedly connected to the lower end of the cylindrical tube (41) located at the bottom, a plurality of circumferentially evenly distributed fan-shaped arc plates (52) are hingedly connected to the lower end of the columnar frame (51), a limiting block (53) is installed on the inner arc surface of the fan-shaped arc plate (52), and a limiting groove is provided at the upper end of the limiting block (53), a limiting mechanism (54) is connected to the inner wall of the columnar frame (51), a second threaded leaf is installed on the outer frame wall of the columnar frame (51), and a third threaded leaf is installed on the outer arc surface of the fan-shaped arc plate (52); The extension device (4) further comprises a plurality of guide grooves (45) evenly distributed in the circumferential direction and provided at the upper end of the inner wall of the cylindrical tube (41); the upper end of the cylindrical tube (41) is provided with a plurality of plug holes (46) evenly distributed in the circumferential direction; The plug-in mechanism (42) comprises an L-shaped hole (421) formed on the wall of the cylindrical tube (41), an L-shaped plate (422) being slidably connected in the L-shaped hole (421), a connecting spring (423) being installed between the vertical section of the L-shaped plate (422) and the hole wall of the vertical section of the L-shaped hole (421), a traction handle (424) being installed on the vertical section of the L-shaped plate (422), a slope being provided at the upper end of the horizontal section of the L-shaped plate (422), and a barrier branch chain (425) being connected to the lower end of the horizontal section of the L-shaped plate (422); The splicing mechanism (44) comprises a circular ring frame (441) installed on the inner wall of the cylindrical tube (41) near the lower end, a plurality of arc-shaped connecting holes (442) evenly distributed in the circumferential direction are opened at the lower end of the circular ring frame (441), the aperture of one end of the arc-shaped connecting hole (442) is larger than the aperture of the other end, a plurality of splicing connecting holes (443) evenly distributed in the circumferential direction are opened on the annular side wall of the circular ring frame (441) near the lower end, a plurality of connecting cylinders (444) evenly distributed in the circumferential direction are installed on the upper end of the circular ring frame (441), a baffle (445) is installed on the upper end of the connecting cylinder (444), a plurality of guiding branches (446) evenly distributed from top to bottom are commonly connected to the plurality of connecting cylinders (444), and a plurality of sliding blocks (447) evenly distributed in the circumferential direction are installed at the lower end of the outer ring surface of the circular ring frame (441); The barrier branch chain (425) comprises a sliding countersunk hole (4251) provided at the lower end of the horizontal section of the L-shaped plate (422), and a barrier column (4252) is slidably connected in the sliding countersunk hole (4251); The guide branch chain (446) includes an annular plate (4461) fixedly connected to the plurality of connecting cylinders (444); the inner surface of the annular plate (4461) is provided with a plurality of circumferentially evenly distributed rotating grooves (4462); a guide plate (4463) is rotatably connected in the rotating groove (4462); a support spring (4464) is installed between the guide plate (4463) and the groove wall of the rotating groove (4462).

2. The automatic drilling equipment for groundwater or soil detection sampling according to claim 1, characterized in that: The lifting device (2) comprises a lifting frame (21) mounted on the upper end of the positioning plate (1), a guide column (22) being mounted in the lifting frame (21), a lifting module (23) being slidably connected to the guide column (22), and the lifting module (23) being fixedly connected to the driving module (31).

3. The automatic drilling equipment for groundwater or soil detection sampling according to claim 1, characterized in that: The clamping mechanism (33) comprises a T-shaped cylindrical rod (331) mounted on the inner wall of the cylindrical frame (32); a sliding plate (332) is slidably sleeved on the horizontal section of the T-shaped cylindrical rod (331); a return spring (333) is installed between the sliding plate (332) and the vertical section of the T-shaped cylindrical rod (331); a pressing block (334) is installed at the upper side of one end of the sliding plate (332) close to the frame wall of the cylindrical frame (32); the pressing block (334) is slidably connected to the frame wall of the cylindrical frame (32); a clamping block (335) is installed at the lower side of one end of the sliding plate (332) close to the frame wall of the cylindrical frame (32); and a slope is arranged at the lower end of the clamping block (335).

4. The automatic drilling equipment for groundwater or soil detection sampling according to claim 1, characterized in that: The limiting mechanism (54) comprises a plurality of positioning columns (541) uniformly distributed in the circumferential direction and mounted on the inner wall of the cylindrical frame (51); two cylindrical rollers (542) are arranged below the positioning columns (541); the cylindrical rollers (542) are rotatably connected to the inner wall of the cylindrical frame (51); a rotating plate (543) is rotatably connected to the positioning columns (541) via a torsion spring; one end of the rotating plate (543) is fixedly connected to a traction rope (544); the other ends of the plurality of traction ropes (544) are passed around the corresponding two cylindrical rollers (542) and are jointly mounted with a limiting ring (545).

5. The automatic drilling equipment for groundwater or soil detection sampling according to claim 4, characterized in that: A magnet is installed on the bottom wall of the limiting groove, and the magnet is magnetically matched with the limiting ring (545).

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