Drilling rig for geotechnical engineering geological investigation

Abstract

The invention relates to the technical field of geological survey, in particular to a drilling rig for geotechnical engineering geological survey, which comprises a base, a lifting assembly and a support are connected with a driving assembly, the support is rotatably connected with a sampling mechanism, and during geological survey, the lifting assembly pushes the driving assembly and the sampling mechanism to move up and down together, so that the sampling mechanism is driven to move up and down; meanwhile, the driving assembly works to drive the drilling assembly to sample the geology, when the drilling assembly enters different soil layers, the resistance borne by the drilling assembly is different, so that under the condition that the drilling assembly enters different soil layers, the rotation speeds of the centrifugal swing assembly are different, and when the rotation speeds change, the transverse movement distance of the ejector rod assembly also changes; the sampling pipe is arranged on the drilling assembly, so that the drilling assembly samples two adjacent soil layers, for example, when a drill bit drills into a hard or soft soil layer, the sampling pipe automatically switches sampling points through the conical block, and representativeness and integrity of samples are ensured. In the prior art, the problem of sampling interruption or interlayer pollution is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration, in particular to a drilling device for geotechnical engineering geological exploration. Background Art

[0002] Geological exploration is the process of investigating and detecting geology through various means and methods to determine the appropriate bearing layer and to investigate and study the geological conditions of a certain area, including rocks, strata, structures, minerals, hydrology, and landforms. Geological exploration technology has evolved from the early extensive model that relied on manual drilling and surface observation to a modern system that integrates high-precision geophysical exploration, remote sensing mapping, digital modeling, and intelligent algorithms. This evolution is characterized by multi-dimensional data integration, real-time dynamic monitoring, and artificial intelligence decision-making. It aims to overcome the limitations of traditional methods in efficiency, accuracy, and adaptability to complex environments, and provide scientific support for resource development, engineering safety, and disaster prevention and control. The current technological frontier is further deepening and expanding in the direction of automated exploration equipment, multi-source heterogeneous data fusion analysis, and real-time deduction of geological processes. The existing publication number is CN118881300B, which is a portable geological exploration drilling device, including a cleaning and moving mechanism, the cleaning and moving mechanism including a load-bearing base plate, a drilling positioning mechanism installed on the top of the load-bearing base plate, a guide sliding cross bar fixedly connected to the left side of the top of the load-bearing base plate through a fixed plate, and a hollow support frame slidably installed on the surface of the guide sliding cross bar. The present invention relates to the field of geological exploration technology. This portable geological exploration drilling device combines the cleaning and moving mechanism and the drilling positioning mechanism. The arrangement of these mechanisms can allow the electric telescopic rod to simultaneously unfold the four L-shaped abutment plates when pulled upwards, and then the staff only needs to rotate the threaded plug rod to complete the installation. The whole process is quick and convenient. At the same time, after rising, the L-shaped toothed pressure plate can also use the linkage between the structures to complete self-locking, ensuring the stability of the structure after unfolding, and a number of inverted threaded plug rods can further improve the stability during drilling; The existing geological survey equipment has the following main shortcomings: Existing devices have low accuracy and continuity in soil layer sampling, resulting in sampling interruptions or inter-layer contamination problems. Summary of the Invention

[0003] The object of the present invention is to provide a drilling device for geotechnical engineering geological survey to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions: Provided is a drilling device for geotechnical engineering geological survey, comprising a base, a bracket fixedly connected to the base, a lifting assembly connected to the bracket, a driving assembly connected to the lifting assembly and the bracket, and a sampling mechanism rotatably connected to the bracket; wherein The sampling mechanism includes: The drilling assembly is rotatably connected to the bracket, the bracket is rotatably connected to a centrifugal swing assembly, and one side of the centrifugal swing assembly is slidably connected to a push rod assembly.

[0005] Furthermore, the lifting assembly includes: Motor 1, wherein the motor 1 is fixedly connected to the top of the bracket, the output end of the motor 1 is fixedly connected to a screw, both sides of the bracket are fixedly connected to a slide rail 1, and the slide rail 1 is slidably connected to a slider 1; and Two support plates are arranged longitudinally, the left ends of the two support plates cooperate with the screw rods through nuts, and the two sides of the two support plates are fixedly connected to the two sliders respectively.

[0006] Furthermore, the driving assembly includes: Motor 2, said motor 2 is fixed on the support plate below, the output end of said motor 2 is fixedly connected to a bevel gear, a driving shaft is rotatably connected to the support plate, a bevel gear is fixedly connected to the driving shaft, the two bevel gears are meshed, and the lower end of the driving shaft is fixedly connected to a synchronous wheel.

[0007] Furthermore, the drilling assembly includes: An outer sleeve, the outer sleeve is rotatably connected to the support plate, a synchronous wheel is fixedly connected to the outer sleeve, the two synchronous wheels are driven by a synchronous belt, the lower end of the outer sleeve is fixedly connected to a drill bit, an inlet 1 is provided on the outer sleeve, a sampling tube is slidably connected in the outer sleeve, an inlet 2 is provided on the sampling tube, the lower end of the sampling tube is fixedly connected to one end of a spring 1, the other end of the spring 1 is fixedly connected to the bottom of the outer sleeve, and the upper end of the sampling tube is fixedly connected to a conical block.

[0008] Furthermore, the centrifugal swing assembly includes: A connecting block is fixedly connected to the upper end of the driving shaft, and a plurality of guide rods are fixedly connected to the connecting block. A second spring is sleeved on the guide rod, and a counterweight block is slidably connected to the guide rod. The counterweight block is fixedly connected to the second spring, and the counterweight block is fixedly connected to one end of the right-angle rod, and the other end of the right-angle rod is rotatably connected to a roller.

[0009] Furthermore, the push rod assembly includes: An arc-shaped slide rail is fixedly connected to one end of a slide rod, the slide rod is slidably connected to a support plate, a spring three is sleeved on the slide rod, a sphere is fixedly connected to the other end of the slide rod, the sphere abuts against the side of the conical block, and the roller abuts against the arc-shaped slide rail.

[0010] Compared with the existing technology, one or more of the above technical solutions have the following beneficial effects: 1. During geological surveys, the lifting assembly pushes the drive assembly and the sampling mechanism up and down together. Simultaneously, the drive assembly works, driving the drilling assembly to sample the geology. When the drilling assembly enters different soil layers, it encounters different resistances. Therefore, when entering different soil layers, the centrifugal swing assembly rotates at different speeds. As the rotation speed changes, the distance the push rod assembly moves laterally also changes, allowing the drilling assembly to sample two adjacent soil layers. For example, when the drill bit penetrates a hard or soft soil layer, the sampling tube automatically switches the collection point through the tapered block, ensuring the representativeness and integrity of the sample. In existing technologies, the problems of sampling interruption or interlayer contamination have been effectively solved. 2. When the active shaft rotates, it drives the connecting block, right-angle rod, roller, guide rod and counterweight to rotate together. During rotation, the counterweight compresses spring 2 under the action of centrifugal force. When entering different soil layers, the centrifugal force on the counterweight changes. When the centrifugal force on the counterweight changes, the arc-shaped slide rail is displaced laterally under the action of spring 3. At the same time, the slide rod moves together, driving the ball to move, and then the sampling tube moves under the action of spring 1, so that inlet 2 corresponds to inlet 1. At this time, the soil loosened by the drill bit slides into the sampling tube to complete the sampling. Without manual judgment, adjacent soil layers can be accurately and continuously sampled. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0012] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a front view of the overall three-dimensional structure of the present invention; Figure 3 It is a left view of the overall three-dimensional structure of the present invention; Figure 4 This is a schematic diagram of the overall three-dimensional structure of the drive assembly of the present invention; Figure 5This is a schematic diagram of the overall three-dimensional structure of the drilling assembly of the present invention; Figure 6 This is a schematic diagram of the overall three-dimensional structure of the drilling assembly of the present invention; Figure 7 This is a schematic diagram of the overall three-dimensional structure of the outer sleeve of the present invention; Figure 8 This is a schematic diagram of the overall three-dimensional structure of the sampling tube of the present invention; Figure 9 This is a schematic diagram of the overall three-dimensional structure of the centrifugal swing assembly of the present invention; Figure 10 This is a schematic diagram of the exploded three-dimensional structure of the centrifugal swing assembly of the present invention; Figure 11 Schematic diagram of the overall three-dimensional structure of the push rod assembly of the present invention In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Base; 2. Bracket; 3. Lifting assembly; 31. Motor 1; 32. Screw; 33. Slide rail 1; 34. Slider 1; 35. Support plate; 4. Drive assembly; 41. Motor 2; 42. Bevel gear; 43. Drive shaft; 5. Sampling mechanism; 51. Drilling assembly; 511. Outer sleeve; 5111. Inlet 1; 512. Drill bit; 513. Sampling tube; 5131. Inlet 2; 514. Spring 1; 515. Conical block; 52. Centrifugal swing assembly; 521. Connecting block; 522. Guide rod; 523. Spring 2; 524. Counterweight; 525. Right-angle rod; 526. Roller; 53. Push rod assembly; 531. Arc slide rail; 532. Slide rod; 533. Spring 3; 534. Sphere. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0015] Reference Figure 1-3 As shown, a drilling device for geotechnical engineering geological survey includes a base 1, a bracket 2 is fixedly connected to the base 1, a lifting component 3 is connected to the bracket 2, a driving component 4 is connected to the lifting component 3, and a sampling mechanism 5 is rotatably connected to the bracket 2; wherein The sampling mechanism 5 includes: The drilling assembly 51 is rotatably connected to the bracket 2 , and the bracket 2 is rotatably connected to a centrifugal swing assembly 52 , and one side of the centrifugal swing assembly 52 is slidably connected to a push rod assembly 53 .

[0016] During geological surveys, the lifting assembly 3 pushes the driving assembly 4 and the sampling mechanism 5 up and down together. At the same time, the driving assembly 4 works to drive the drilling assembly 51 to sample the geology. When the drilling assembly 51 enters different soil layers, it encounters different resistances. Therefore, when entering different soil layers, the centrifugal swing assembly 52 rotates at different speeds. When the rotation speed changes, the lateral movement distance of the push rod assembly 53 also changes accordingly, allowing the drilling assembly 51 to sample two adjacent soil layers.

[0017] The lifting assembly 3 includes: Motor 1 31, said motor 1 31 being fixedly connected to the top of the bracket 2, said output end of the motor 1 31 being fixedly connected to a screw rod 32, said two sides of the bracket 2 being fixedly connected to a slide rail 1 33, said slide rail 1 33 being slidably connected to a slider 1 34; and Two support plates 35 are arranged longitudinally, the left ends of the two support plates 35 cooperate with the screw rod 32 through nuts, and the two sides of the two support plates 35 are fixedly connected to the two sliders 34 respectively.

[0018] The motor 31 works to drive the screw rod 32 to rotate. The screw rod 32 cooperates with the nut to make the screw rod 32 push the nut to move up and down when it rotates, thereby driving the support plate 35 to move up and down. The lifting and lowering of the support plate 35 drives the slider 1 34 to slide on the slide rail 1 33.

[0019] Reference Figure 4 As shown, the driving assembly 4 includes: Motor 2 41, the motor 2 41 is fixed on the support plate 35 below, the output end of the motor 2 41 is fixedly connected to a bevel gear 42, the support plate 35 is rotatably connected to a driving shaft 43, the driving shaft 43 is fixedly connected to a bevel gear 42, the two bevel gears 42 are meshed, and the lower end of the driving shaft 43 is fixedly connected to a synchronous wheel.

[0020] The second motor 41 works to drive the bevel gear 42 fixedly connected thereto to rotate, thereby driving the driving shaft 43 to rotate, and at the same time, the synchronous wheel fixedly connected to the lower end of the driving shaft 43 rotates.

[0021] Reference Figure 5-8 As shown, the drilling assembly 51 includes: The outer sleeve 511 is rotatably connected to the support plate 35. A synchronous wheel is fixedly connected to the outer sleeve 511, and the two synchronous wheels are driven by a synchronous belt. The lower end of the outer sleeve 511 is fixedly connected to the drill bit 512. The outer sleeve 511 is provided with an inlet 1 5111. A sampling tube 513 is slidably connected inside the outer sleeve 511. The sampling tube 513 is provided with an inlet 2 5131. The lower end of the sampling tube 513 is fixedly connected to one end of a spring 1 514. The other end of the spring 1 514 is fixedly connected to the bottom of the outer sleeve 511. The upper end of the sampling tube 513 is fixedly connected to a conical block 515.

[0022] Under the action of the synchronous belt drive, the synchronous wheel fixedly connected to the lower end of the driving shaft 43 drives a synchronous wheel fixedly connected to the outer sleeve 511 to rotate when it rotates, thereby driving the outer sleeve 511 to rotate, and then driving the sampling tube 513 and the conical block 515 to rotate together. At this time, the inlet 1 5111 is located above the inlet 2 5131.

[0023] Reference Figure 9-10 As shown, the centrifugal swing assembly 52 includes: The connecting block 521 is fixedly connected to the upper end of the driving shaft 43. Several guide rods 522 are fixedly connected to the connecting block 521. A spring 2 523 is sleeved on the guide rod 522. A counterweight 524 is slidably connected to the guide rod 522. The counterweight 524 is fixedly connected to the spring 2 523. The counterweight 524 is fixedly connected to one end of the right-angle rod 525. The other end of the right-angle rod 525 is rotatably connected to the roller 526.

[0024] When the driving shaft 43 rotates, it drives the connecting block 521, the right-angle rod 525, the roller 526, the guide rod 522 and the counterweight block 524 to rotate together. During rotation, the counterweight block 524 compresses the spring 2 523 under the action of centrifugal force. When entering different soil layers, the centrifugal force exerted on the counterweight block 524 changes.

[0025] Reference Figure 11 As shown, the push rod assembly 53 includes: The arc-shaped slide rail 531 is fixedly connected to one end of the slide rod 532, and the slide rod 532 is slidably connected to the support plate 35. The slide rod 532 is provided with a spring 3 533, and the other end of the slide rod 532 is fixedly connected to a ball 534, and the ball 534 abuts against the side of the conical block 515, and the roller 526 abuts against the arc-shaped slide rail 531.

[0026] When the centrifugal force on the counterweight 524 changes, the arc-shaped slide rail 531 is displaced laterally under the action of spring three 533, and the slide rod 532 moves together, driving the ball 534 to move, and then the sampling tube 513 moves under the action of spring one 514, so that the second inlet 5131 corresponds to the first inlet 5111. At this time, the soil loosened by the drill bit 512 slides into the sampling tube 513 to complete the sampling.

[0027] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing 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 should not be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, 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 device for geotechnical engineering geological survey, characterized by: The invention comprises a base (1), a bracket (2) fixedly connected to the base (1), a lifting assembly (3) connected to the bracket (2), a driving assembly (4) connected to the lifting assembly (3) and the bracket (2), and a sampling mechanism (5) rotatably connected to the bracket (2); wherein The sampling mechanism (5) includes: A drilling assembly (51) is rotatably connected to a bracket (2), a centrifugal swing assembly (52) is rotatably connected to the bracket (2), and a push rod assembly (53) is slidably connected to one side of the centrifugal swing assembly (52).

2. A drilling device for geotechnical engineering geological survey according to claim 1, characterized in that: The lifting assembly (3) includes: Motor 1 (31), wherein the motor 1 (31) is fixedly connected to the top of the bracket (2), the output end of the motor 1 (31) is fixedly connected to a screw rod (32), both sides of the bracket (2) are fixedly connected to a slide rail 1 (33), and a slider 1 (34) is slidably connected to the slide rail 1 (33); and Two support plates (35), the two support plates (35) are arranged longitudinally, the left ends of the two support plates (35) are matched with the screw rod (32) through nuts, and the two sides of the two support plates (35) are fixedly connected to the two sliders (34) respectively.

3. A drilling device for geotechnical engineering geological survey according to claim 2, characterized in that: The driving component (4) includes: Motor 2 (41), the motor 2 (41) is fixed on the support plate (35) below, the output end of the motor 2 (41) is fixedly connected to a bevel gear (42), the support plate (35) is rotatably connected to a driving shaft (43), the driving shaft (43) is fixedly connected to a bevel gear (42), the two bevel gears (42) are meshed, and the lower end of the driving shaft (43) is fixedly connected to a synchronous wheel.

4. The drilling device for geotechnical engineering geological survey according to claim 3, characterized in that: The drilling assembly (51) comprises: An outer sleeve (511) is rotatably connected to a support plate (35). A synchronous wheel is fixedly connected to the outer sleeve (511). The two synchronous wheels are driven by a synchronous belt. A drill bit (512) is fixedly connected to the lower end of the outer sleeve (511). An inlet 1 (5111) is provided on the outer sleeve (511). A sampling tube (513) is slidably connected inside the outer sleeve (511). An inlet 2 (5131) is provided on the sampling tube (513). The lower end of the sampling tube (513) is fixedly connected to one end of a spring 1 (514). The other end of the spring 1 (514) is fixedly connected to the bottom of the outer sleeve (511). The upper end of the sampling tube (513) is fixedly connected to a conical block (515).

5. The drilling device for geotechnical engineering geological survey according to claim 4, characterized in that: The centrifugal swing assembly (52) includes: A connecting block (521) is fixedly connected to the upper end of the driving shaft (43). A plurality of guide rods (522) are fixedly connected to the connecting block (521). A second spring (523) is sleeved on the guide rod (522). A counterweight (524) is slidably connected to the guide rod (522). The counterweight (524) is fixedly connected to the second spring (523). The counterweight (524) is fixedly connected to one end of a right-angle rod (525). The other end of the right-angle rod (525) is rotatably connected to a roller (526).

6. The drilling device for geotechnical engineering geological survey according to claim 5, characterized in that: The ejector assembly (53) includes: An arc-shaped slide rail (531) is fixedly connected to one end of a slide rod (532), the slide rod (532) is slidably connected to the support plate (35), a spring three (533) is sleeved on the slide rod (532), and a sphere (534) is fixedly connected to the other end of the slide rod (532), the sphere (534) abuts against the side of the conical block (515), and the roller (526) abuts against the arc-shaped slide rail (531).

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