Geological drilling corer

Abstract

The utility model relates to a geological drilling corer, which relates to the technical field of drilling equipment, and comprises a drill tower, a drilling assembly, a coring assembly and a protection assembly, the drill tower is vertically arranged; the drilling assembly is arranged on the drill tower and used for drilling the ground. The coring assembly is arranged on the drill tower and is used for coring operation; and the protection assembly is arranged on the drill tower and is used for protecting the obtained core sample. According to the invention, the convenience of geological exploration can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of drilling equipment, and in particular to a geological drilling corer. Background Art

[0002] In the process of geological exploration, in order to better study and analyze the structure and composition of the soil layer, it is usually necessary to drill and coring the soil layer, and then analyze the core samples obtained.

[0003] Existing coring drilling usually uses a drilling device to send a coring barrel into the ground, and then uses the drilling equipment to drive the coring barrel to feed downward while rotating, thereby forming a columnar core sample in the coring barrel, and then the operator withdraws the drill to remove the coring barrel and the core sample, completing the coring work of the soil layer.

[0004] During the above-mentioned coring drilling process, the core sample is fixed in the coring barrel by the friction between the core sample and the coring barrel. During the drilling withdrawal process, the drilling equipment is prone to collide with the drilling arm, causing the core sample to break and partially fall out of the coring barrel, requiring the operator to drill and coring repeatedly, which brings great inconvenience to geological exploration. Utility Model Content

[0005] In order to improve the convenience of geological exploration, the present application provides a geological drilling core sampling device.

[0006] The present application provides a geological drilling corer, which adopts the following technical solution:

[0007] A geological drilling coring device comprises a drilling tower, a drilling assembly, a coring assembly and a protection assembly; the drilling tower is arranged vertically; the drilling assembly is arranged on the drilling tower and is used for drilling operations on the ground; the coring assembly is arranged on the drilling tower and is used for coring operations; the protection assembly is arranged on the drilling tower and is used for protecting the obtained core sample.

[0008] By adopting the above technical scheme, when conducting geological exploration, the drilling assembly is first used to drill on the ground. When drilling to the depth to be surveyed, the coring assembly is used to perform coring. After coring, the drilling assembly is retracted. During the retraction process, the protective assembly is used to protect the obtained core sample, thereby preventing the core sample from breaking and falling, thereby ensuring that the drilling and coring are completed in one go, and improving the convenience of geological exploration.

[0009] Optionally, the drilling assembly includes a drill rod, a drill bit and a driving component; the drill rod is arranged on the drilling tower; the drill bit is coaxially fixedly connected to the drill rod; the driving component is arranged on the drilling tower, and the driving component is used to drive the drill rod and the drill bit to perform reciprocating linear motion, and drive the drill rod to rotate.

[0010] By adopting the above technical solution, when conducting geological exploration, the driving assembly is used to drive the drill rod to rotate, thereby driving the drill bit to rotate. The driving assembly also drives the drill rod and the drill bit to perform reciprocating linear motion, thereby realizing drilling and retracting operations.

[0011] Optionally, a mounting groove is provided inside the drill bit, a coring groove is provided on the drill bit, and the coring groove is connected to the mounting groove; the coring assembly includes a coring barrel and an electric push rod; one end of the coring barrel is an open structure, and the coring barrel and the coring groove are coaxially arranged; the fixed end of the electric push rod is fixedly connected to the drill rod, and the movable end of the electric push rod is passed through the drill bit and fixedly connected to the coring barrel.

[0012] By adopting the above technical solution, when performing coring operations, an electric push rod is used to push the coring barrel downward, one end of the coring barrel is inserted into the coring groove, and then the driving assembly is used to drive the drill rod and the drill bit to rotate and feed, so that a core sample is formed in the coring barrel, thereby completing the coring operation.

[0013] Optionally, the protection component includes a baffle and a transmission component, wherein two baffles are provided and are respectively located on both sides of the core barrel, the baffle is slidably connected to the drill bit, and one end of the baffle is a blade-like structure; the transmission component is provided on the drill bit, and is used to transmit the sliding of the core barrel to the baffle and drive the baffle to slide.

[0014] By adopting the above technical solution, during the coring operation, when the electric push rod pushes the coring barrel downward, the sliding of the coring barrel is transmitted to the baffle through the transmission assembly, and the two baffles are driven to slide in the direction away from each other, making way for the coring barrel, so that the extension of the coring barrel is not affected. When the coring operation is completed and the drilling operation is performed, the operator starts the electric push rod to drive the coring barrel upward, and uses the transmission assembly to drive the two baffles to slide in the direction of approaching each other. At the same time, the motor is still in a working state, and the drill rod and the drill bit will drive the baffle to rotate. The baffle cuts off the core sample. When the coring barrel is retracted into the installation groove, the two baffles abut and are located at the bottom of the coring barrel, protecting the core sample during the drilling process to prevent the core sample from falling, thereby achieving protection of the core sample.

[0015] Optionally, two groups of transmission components are provided, and correspond one-to-one with the baffles; the transmission components include a rack, a gear and a telescopic arm; the rack is fixedly provided on the core barrel; the gear is located in the mounting groove and is rotatably connected to the drill bit, and the gear is meshed with the rack; one end of the telescopic arm is fixedly connected to the gear, and the other end is hinged to the baffle.

[0016] By adopting the above technical solution, when the core barrel moves downward and extends, it drives the rack to move downward, thereby driving the gear to rotate, and the gear in turn drives the telescopic arm to rotate in the direction away from the core barrel, thereby driving the baffle to slide in the direction away from the core barrel; when the core barrel moves upward and retracts, it drives the rack to move upward, thereby driving the gear to rotate in the opposite direction, and the gear in turn drives the telescopic arm to rotate in the direction close to the core barrel, thereby driving the baffle to slide in the direction close to the core barrel.

[0017] Optionally, magnetic strips are fixedly provided on the two baffles, and the magnetic properties of the two magnetic strips are opposite.

[0018] By adopting the above technical solution, when the two baffles move to the bottom of the core barrel, the two magnetic strips attract each other. Under the action of the mutual attraction between the two magnetic strips, the two baffles are abutted and fixed together, thereby avoiding the separation of the two baffles due to collision during the drilling withdrawal process, ensuring that the two baffles are abutted together, thereby ensuring the protection of the core sample.

[0019] Optionally, a core-out assembly is provided in the core-out barrel, and the core-out assembly includes a push plate and a spring; the push plate is slidably provided in the core-out barrel; and both ends of the spring are fixedly connected to the push plate and the core-out barrel respectively.

[0020] By adopting the above technical solution, after the baffle cuts off the core sample, the push plate provides a thrust to the core sample under the action of the spring, cooperates with the baffle to clamp and fix the core sample, thereby protecting the core sample during the drilling withdrawal process. After the drilling withdrawal is completed, the operator starts the electric push rod to drive the coring barrel to extend into the coring groove, and the coring barrel drives the rack, gear and telescopic arm to move, thereby driving the baffle to move away from the coring barrel. Under the elastic force of the spring, the push plate moves toward the opening direction of the coring barrel to push the core sample out completely, thereby ensuring the integrity of the core sample, avoiding repeated drilling and coring operations, and improving the convenience of geological exploration.

[0021] Optionally, the driving component includes a hydraulic telescopic rod and a motor; the fixed end of the hydraulic telescopic rod is fixedly connected to the drilling tower; the motor is fixedly connected to the movable end of the hydraulic telescopic rod, and the output shaft of the motor is coaxially fixedly connected to the drill rod.

[0022] By adopting the above technical solution, when conducting geological surveys, a motor is used to drive the drill rod to rotate, thereby driving the drill bit to rotate. At the same time, the hydraulic telescopic rod drives the motor, drill rod and drill bit to perform up and down reciprocating linear motion, thereby realizing drilling and retracting operations.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When conducting geological exploration, first use the drilling assembly to drill on the ground. When drilling to the depth to be surveyed, use the coring assembly to perform coring. After coring, the drilling assembly will be retracted. During the retraction process, the protective assembly will be used to protect the obtained core sample to prevent the core sample from breaking and falling, thereby ensuring that the drilling and coring are completed in one go, which improves the convenience of geological exploration;

[0025] 2. After the drill is withdrawn, the operator starts the electric push rod to drive the coring barrel to extend into the coring groove. The coring barrel drives the rack, gear and telescopic arm to move, thereby driving the baffle to move away from the coring barrel. Under the elastic force of the spring, the push plate moves toward the opening of the coring barrel to push the core sample out completely, thereby ensuring the integrity of the core sample and avoiding repeated drilling and coring operations, thereby improving the convenience of geological exploration. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0027] Figure 2 is a cross-sectional view of an embodiment of the present application;

[0028] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0029] Figure 4 This is a partial enlarged view of the embodiment of the present application for showing the transmission components.

[0030] Description of reference numerals:

[0031] 1. Drilling tower;

[0032] 2. Drilling assembly; 21. Drill rod; 22. Drill bit; 221. Mounting slot; 222. Coring slot; 23. Driving component; 231. Motor; 232. Hydraulic telescopic rod;

[0033] 3. Coring assembly; 31. Coring barrel; 32. Electric push rod;

[0034] 4. Protection assembly; 41. Baffle; 411. Magnetic strip; 42. Transmission component; 421. Rack; 422. Gear; 423. Telescopic arm;

[0035] 5. core ejection assembly; 51. spring; 52. push plate. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] The present application embodiment discloses a geological drilling core sampling device. Figures 1 to 4A geological drilling coring device comprises a drilling tower 1, a drilling assembly 2, a coring assembly 3 and a protection assembly 4. The drilling tower 1 is vertically arranged on the ground at a location to be surveyed.

[0038] Reference Figure 1 The drilling assembly 2 includes a driving component 23, a drill rod 21 and a drill bit 22. The driving component 23 includes a hydraulic telescopic rod 232 and a motor 231. The hydraulic telescopic rod 232 is vertically arranged, and the top of the fixed end of the hydraulic telescopic rod 232 is fixedly connected to the drilling tower 1. The motor 231 is fixedly connected to the movable end of the hydraulic telescopic rod 232, and the output shaft of the motor 231 is vertically arranged downward. The drill rod 21 is coaxially fixedly arranged on the output shaft of the motor 231. The drill bit 22 is located at the bottom of the drill rod 21 and is coaxially fixedly connected to the drill rod 21.

[0039] During geological survey, the motor 231 is used to drive the drill rod 21 to rotate, thereby driving the drill bit 22 to rotate. At the same time, the hydraulic telescopic rod 232 drives the motor 231, the drill rod 21 and the drill bit 22 to perform up and down reciprocating linear motion, thereby realizing drilling and retracting operations.

[0040] Reference Figure 2 and Figure 3 , a mounting groove 221 is provided inside the drill bit 22. A coring groove 222 is coaxially provided at the bottom of the drill bit 22, and the coring groove 222 is communicated with the mounting groove 221. The coring assembly 3 includes an electric push rod 32 and a coring barrel 31, wherein the fixed end of the electric push rod 32 is coaxially arranged inside the drill rod 21 and is fixedly connected to the drill rod 21, and the movable end of the electric push rod 32 is passed through the top of the drill bit 22 and is located in the mounting groove 221. The coring barrel 31 is located in the mounting groove 221 and is coaxially fixedly connected to the movable end of the electric push rod 32, and the coring barrel 31 is a bottom opening structure.

[0041] During the geological survey, when the drill bit 22 drills to the depth to be surveyed, the operator extends the electric push rod 32 to drive the coring barrel 31 to move downward, and one end of the coring barrel 31 extends into the coring groove 222. The bottom of the coring barrel 31 is flush with the bottom of the drill bit 22. Then the motor 231 is used to drive the drill rod 21 and the drill bit 22 to rotate. At the same time, the hydraulic telescopic rod 232 drives the drill rod 21 and the drill bit 22 to feed downward, so that a columnar core sample is formed in the coring barrel 31, completing the coring operation.

[0042] Reference Figure 3 and Figure 4The protection component 4 includes a baffle 41 and a transmission component 42. The baffle 41 is a semicircular plate-shaped structure, and two baffles 41 are provided, and are respectively located on both sides of the core barrel 31. Slide grooves are provided at the bottom of the two opposite side walls of the mounting groove 221. Slide blocks are fixedly provided on both sides of the baffle 41, and the slide blocks are located in the slide grooves and are slidably connected to the drill bit 22, and the sliding axis is horizontally arranged. The ends of the two baffles 41 that are close to each other are both blade-shaped structures. A magnetic strip 411 is fixedly embedded inside the baffle 41, and the two magnetic strips 411 in the two baffles 41 have opposite magnetic properties.

[0043] Reference Figure 3 and Figure 4 The transmission component 42 is provided with two groups, and corresponds to the baffle 41 one by one. The transmission component 42 includes a rack 421, a gear 422 and a telescopic arm 423. The rack 421 is vertically arranged and fixedly connected to the outer wall of the core barrel 31. The gear 422 is located in the mounting groove 221 and is rotatably connected to the drill bit 22. The rotation axis is horizontally arranged, and the gear 422 is meshed with the rack 421. The fixed end of the telescopic arm 423 is hinged to the baffle 41, and the hinge axis is arranged parallel to the rotation axis of the gear 422. The movable end of the telescopic arm 423 is fixedly connected to the gear 422.

[0044] In the initial state, the two baffles 41 are located at the bottom of the coring barrel 31, and the two baffles 41 form a circular plate-shaped structure. The magnetic strips 411 on the two baffles 41 attract each other, so that the two baffles 41 are fixed. During the coring operation, when the operator starts the electric push rod 32 to push the coring barrel 31 downward and extend it into the coring groove 222, the coring barrel 31 drives the rack 421 to move downward, thereby driving the gear 422 to rotate, and the rotation of the gear 422 drives the telescopic arm 423 to rotate in the direction away from the coring barrel 31. Since the baffle 41 is slidably connected to the drill bit 22, the telescopic arm 423 will drive the baffle 41 to overcome the mutual attraction between the two magnetic strips 411 and slide in the direction away from the coring barrel 31. In this process, the telescopic arm 423 will adaptively adjust its own length, and the baffle 41 will slide in the direction away from the coring barrel 31, thereby giving way to avoid affecting the extension of the coring barrel 31.

[0045] When the coring operation is completed, the operator starts the hydraulic telescopic rod 232 to drive the drill rod 21 and the drill bit 22 to move upward for retracting the drill. At the same time, the electric push rod 32 is started to drive the coring barrel 31 to move upward, thereby driving the rack 421 to move upward, and the rack 421 drives the gear 422 to rotate, thereby driving the telescopic arm 423 to rotate in the direction close to the coring barrel 31, and the telescopic arm 423 drives the baffle 41 to slide in the direction close to the coring barrel 31. In this process, the motor 231 is started to drive the drill rod 21 and the drill bit 22 to rotate, thereby driving the baffle 41 to rotate relative to the core sample, and the blade of the baffle 41 cuts the core sample. As the electric push rod 32 drives the coring barrel 31 to be retracted into the mounting groove 221, the baffle 41 also moves to the bottom of the coring barrel 31. Under the mutual attraction of the two magnetic strips 411, the two baffles 41 are fixed to protect the core sample during the retracting process to prevent the core sample from falling.

[0046] Reference Figure 4 A core assembly 5 is arranged in the core barrel 31, and the core assembly 5 includes a push plate 52 and a spring 51. The push plate 52 is coaxially arranged in the core barrel 31 and is slidably connected to the core barrel 31, and the sliding axis is arranged along the length direction of the core barrel 31. The spring 51 is vertically arranged in the core barrel 31, and both ends of the spring 51 are fixedly connected to the core barrel 31 and the push plate 52 respectively.

[0047] During the coring operation, when the hydraulic telescopic rod 232 drives the drill rod 21 and the drill bit 22 to feed downward, and the motor 231 drives the drill rod 21 and the drill bit 22 to rotate for coring, the core sample is gradually formed in the coring barrel 31, and pushes the push plate 52 to overcome the elastic force of the spring 51 and move to the top of the coring barrel 31, and the coring operation is completed.

[0048] After the coring operation is completed and the baffle 41 cuts off the core sample, under the elastic force of the spring 51, the push plate 52 and the baffle 41 provide a clamping force to the core sample to fix the core sample.

[0049] After the drill is withdrawn, the operator starts the electric push rod 32, driving the coring barrel 31 to extend into the coring groove 222. The coring barrel 31 drives the rack 421, the gear 422 and the telescopic arm 423 to move, thereby driving the baffle 41 to move away from the coring barrel 31. Under the elastic force of the spring 51, the push plate 52 moves toward the opening direction of the coring barrel 31, pushing the core sample out completely. The operator can then receive the core sample and analyze it.

[0050] The implementation principle of a geological drilling corer in the embodiment of the present application is:

[0051] When conducting geological survey, the motor 231 is used to drive the drill rod 21 to rotate, driving the drill bit 22 to rotate, and at the same time the hydraulic telescopic rod 232 drives the motor 231, the drill rod 21 and the drill bit 22 to feed downward, thereby performing drilling operations.

[0052] When the drill bit 22 drills to the depth to be surveyed, the operator extends the electric push rod 32 to drive the coring barrel 31 to move downward, thereby driving the gear 422 to rotate. The rotation of the gear 422 drives the telescopic arm 423 to rotate in the direction away from the coring barrel 31. The telescopic arm 423 will drive the baffle 41 to overcome the mutual attraction between the two magnetic strips 411 and slide in the direction away from the coring barrel 31 until one end of the coring barrel 31 extends into the coring groove 222, and the bottom of the coring barrel 31 is flush with the bottom of the drill bit 22. Then the motor 231 is used to drive the drill rod 21 and the drill bit 22 to rotate. At the same time, the hydraulic telescopic rod 232 drives the drill rod 21 and the drill bit 22 to feed downward, and the core sample is gradually formed in the coring barrel 31. The core sample pushes the push plate 52 to overcome the elastic force of the spring 51 and move to the top of the coring barrel 31, and the coring operation is completed.

[0053] After the coring operation is completed, the operator starts the hydraulic telescopic rod 232 to drive the drill rod 21 and the drill bit 22 to move upward to withdraw the drill. At the same time, the electric push rod 32 is started to drive the coring barrel 31 to move upward, thereby driving the rack 421 to move upward, and the rack 421 drives the gear 422 to rotate, thereby driving the telescopic arm 423 to rotate in the direction close to the coring barrel 31, and the telescopic arm 423 drives the baffle 41 to slide in the direction close to the coring barrel 31. In this process, the motor 231 starts to drive the drill rod 21 The electric push rod 32 drives the core barrel 31 to be retracted into the mounting groove 221, and the baffle 41 also moves to the bottom of the core barrel 31. Under the mutual attraction of the two magnetic strips 411, the two baffles 41 are fixed. Under the elastic force of the spring 51, the push plate 52 and the baffle 41 provide a clamping force for the core sample to fix the core sample and protect the core sample during the drilling withdrawal process to prevent the core sample from breaking and falling.

[0054] After the drill is withdrawn, the operator starts the electric push rod 32, driving the coring barrel 31 to extend into the coring groove 222. The coring barrel 31 drives the rack 421, the gear 422 and the telescopic arm 423 to move, thereby driving the baffle 41 to move away from the coring barrel 31. Under the elastic force of the spring 51, the push plate 52 moves toward the opening direction of the coring barrel 31, pushing the core sample out completely. The operator can then receive the core sample and analyze it.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A geological drilling corer, characterized in that: The invention comprises a drilling tower (1), a drilling assembly (2), a coring assembly (3) and a protection assembly (4); the drilling tower (1) is arranged vertically; the drilling assembly (2) is arranged on the drilling tower (1) and is used for drilling the ground; the coring assembly (3) is arranged on the drilling tower (1) and is used for coring; and the protection assembly (4) is arranged on the drilling tower (1) and is used for protecting the obtained core sample.

2. A geological drilling corer according to claim 1, characterized in that: The drilling assembly (2) comprises a drill rod (21), a drill bit (22) and a driving component (23); the drill rod (21) is arranged on the drilling tower (1); the drill bit (22) is coaxially fixedly connected to the drill rod (21); the driving component (23) is arranged on the drilling tower (1), and the driving component (23) is used to drive the drill rod (21) and the drill bit (22) to perform reciprocating linear motion, and to drive the drill rod (21) to rotate.

3. A geological drilling corer according to claim 2, characterized in that: The drill bit (22) is provided with a mounting groove (221) inside, and the drill bit (22) is provided with a coring groove (222), and the coring groove (222) is communicated with the mounting groove (221); the coring assembly (3) comprises a coring barrel (31) and an electric push rod (32); one end of the coring barrel (31) is an open structure, and the coring barrel (31) and the coring groove (222) are coaxially arranged; the fixed end of the electric push rod (32) is fixedly connected to the drill rod (21), and the movable end of the electric push rod (32) is inserted into the drill bit (22) and fixedly connected to the coring barrel (31).

4. A geological drilling corer according to claim 3, characterized in that: The protection assembly (4) comprises a baffle (41) and a transmission component (42); two baffles (41) are provided and are respectively located on both sides of the core barrel (31); the baffle (41) is slidably connected to the drill bit (22); one end of the baffle (41) is in a blade-like structure; the transmission component (42) is provided on the drill bit (22) and is used to transmit the sliding movement of the core barrel (31) to the baffle (41) and drive the baffle (41) to slide.

5. A geological drilling corer according to claim 4, characterized in that: The transmission component (42) is provided in two groups and corresponds to the baffle (41) one by one; the transmission component (42) comprises a rack (421), a gear (422) and a telescopic arm (423); the rack (421) is fixedly arranged on the coring barrel (31); the gear (422) is located in the mounting groove (221) and is rotatably connected to the drill bit (22), and the gear (422) is meshed with the rack (421); one end of the telescopic arm (423) is fixedly connected to the gear (422), and the other end is hinged to the baffle (41).

6. A geological drilling corer according to claim 5, characterized in that: A magnetic strip (411) is fixedly arranged on each of the two baffles (41), and the two magnetic strips (411) have opposite magnetic properties.

7. A geological drilling corer according to claim 5, characterized in that: A core extraction assembly (5) is arranged in the core extraction barrel (31), and the core extraction assembly (5) comprises a push plate (52) and a spring (51); the push plate (52) is slidably arranged in the core extraction barrel (31); and two ends of the spring (51) are fixedly connected to the push plate (52) and the core extraction barrel (31), respectively.

8. A geological drilling corer according to claim 2, characterized in that: The driving component (23) comprises a hydraulic telescopic rod (232) and a motor (231); the fixed end of the hydraulic telescopic rod (232) is fixedly connected to the drilling tower (1); the motor (231) is fixedly connected to the movable end of the hydraulic telescopic rod (232), and the output shaft of the motor (231) is coaxially fixedly connected to the drilling rod (21).

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