CN-121994530-A - Geological exploration soil layer sampling equipment

CN121994530ACN 121994530 ACN121994530 ACN 121994530ACN-121994530-A

Abstract

The application relates to the technical field of sampling equipment, and discloses geological exploration soil layer sampling equipment, which comprises a frame and at least one drill pipe, wherein the frame is arranged on a vehicle body, the bottom end of the drill pipe is connected with a drill bit, a movable drill-down device which is driven by a hydraulic cylinder to move up and down is arranged on the frame, the middle part of the drill bit is of a hollow design, the inside of the drill bit is communicated with the inside of the drill pipe, the top of the drill bit is provided with an annular diversion trench communicated with the lower diversion trench, and the drill bit is also provided with a diversion hole communicated with the annular diversion trench. The middle part of the drill bit is hollow, the inner part of the drill bit is communicated with the inner part of the drill pipe, when the drill bit is used for drilling, the soil which is not broken on the inner side of the drill bit forms a soil column to be sampled and positioned on the inner side of the drill pipe, and on the premise of ensuring high-efficiency drilling of sampling deep soil, the integrity of the soil to be sampled is also ensured, so that the accuracy of soil sampling survey results is further improved.

Inventors

ZHOU JIE
DU NAIPENG
WANG HUAQIN
LI JINJIN
Xue Aoqi
SHI SUMEI
CHEN XIAOTING
Zu Chunyin
ZHONG HONGLI
ZHAO JINYANG
WANG TIECHENG
ZHANG XIAOYONG
LI YUEQIN
CHEN WEI
HAN WEI
YANG XIAOYUN
HE KAI
SUN YAOYAO
CHEN XIANG
ZHOU HAO
CHEN TIANLAI
PAN LEI
LIU XINGFENG

Assignees

苏源检测有限公司

Dates

Publication Date: 20260508
Application Date: 20260313

Claims (10)

1. The soil layer sampling equipment for geological exploration comprises a frame and at least one drill pipe, wherein the frame is arranged on a vehicle body, the bottom end of the drill pipe is connected with a drill bit, and the soil layer sampling equipment is characterized in that a mobile drill-down device which is driven by a hydraulic cylinder to move up and down is arranged on the frame, the mobile drill-down device comprises a driven rotating shaft which is driven by a motor to rotate, a plurality of upper diversion trenches distributed in a circumferential array are arranged on the driven rotating shaft, and an air charging tank which is communicated with two of the upper diversion trenches is also arranged on the driven rotating shaft; The drill pipe is provided with a lower diversion trench communicated with the upper diversion trench, the middle part of the drill bit is hollow, the interior of the drill bit is communicated with the interior of the drill pipe, the top of the drill bit is provided with an annular diversion trench communicated with the lower diversion trench, and the drill bit is also provided with a diversion hole communicated with the annular diversion trench; when the drill soil is sampled, cooling liquid sequentially flows through the upper diversion trench, the lower diversion trench, the annular diversion trench and the diversion holes, the drill bit is cooled, meanwhile, broken soil is driven to flow upwards and discharge, and meanwhile, the soil which is not broken on the inner side of the drill bit forms a soil column to be sampled and positioned on the inner side of the drill pipe.
2. The geological exploration soil sampling device according to claim 1, wherein the movable tripping device further comprises a lower locating plate and an upper locating plate which are arranged up and down, the lower locating plate is located below the upper locating plate, the bottom end of a piston shaft of the hydraulic cylinder is fixedly connected with the top of the upper locating plate, locating blocks are fixedly connected to two ends between the lower locating plate and the upper locating plate respectively, the driven rotating shaft is rotatably connected with the lower locating plate and the upper locating plate through bearings, the lower locating plate and the upper locating plate which are arranged up and down limit the driven rotating shaft respectively, stable rotation of the driven rotating shaft is ensured, and meanwhile, the upper locating plate is driven to move up and down by the hydraulic cylinder driving the piston shaft, so that the movable tripping device is driven to move up and down integrally.
3. The geological exploration soil sampling device according to claim 2, wherein two groups of limiting rods are fixedly arranged on the frame, the number of one group of limiting rods is at least two, the two limiting rods in the same group are movably sleeved with one positioning block, and the hydraulic cylinder can drive the piston shaft to drive the moving tripping device to stably move up and down through the limiting effect of the limiting rods on the positioning block.
4. The geological exploration soil sampling device according to claim 2, wherein the driven gear positioned below the lower positioning plate is fixedly installed on the driven rotating shaft, the motor is fixedly installed at the top of the upper positioning plate, the output rotating shaft of the motor extends to the position below the lower positioning plate and is fixedly provided with the driving gear, the external teeth of the driving gear are meshed with the external teeth of the driven gear, the driving gear is driven to rotate by the motor to drive the output rotating shaft, and the driven gear and the driven rotating shaft are driven to synchronously rotate by the meshing action of the driving gear and the driven gear.
5. The geological exploration soil sampling device according to claim 1, wherein a rotary joint is fixedly connected to the top end of the passive rotating shaft, a liquid injection pipe is fixedly connected to one end of the rotary joint, which is far away from the passive rotating shaft, and cooling liquid can be continuously injected through the liquid injection pipe when the passive rotating shaft is driven to rotate by a motor.
6. The geological exploration soil sampling device according to claim 1, wherein the top of the drill pipe is provided with a slot, the bottom end of the passive rotating shaft and the bottom end of another drill pipe can be inserted into the slot, the top end of the drill pipe is also provided with a plurality of jacks positioned in the slot, the plurality of jacks are circumferentially distributed on the drill pipe and are arranged in a staggered manner with the lower diversion trenches, the bottom ends of the passive rotating shaft and the drill pipe are respectively fixedly provided with a plurality of inserting shafts which are the same with the jacks in number and correspond to each other in position and are matched with each other, the lower diversion trench at the bottom end of the passive rotating shaft and the inserting shaft at the bottom end of another drill pipe can be inserted into the jack at the top end of one drill pipe, and when the motor drives the passive rotating shaft to rotate, the passive rotating shaft can drive the whole of one drill pipe or the drill pipes after being inserted.
7. The geological exploration soil sampling device according to claim 6, wherein the bottom ends of the driven rotating shaft and the drill pipes are respectively provided with an insertion pipe, the inside of the insertion pipe positioned at the bottom end of the driven rotating shaft is communicated with the inside of the upper diversion trench, the inside of the insertion pipe positioned at the bottom end of the drill pipe is communicated with the insertion hole, the insertion pipe positioned at the bottom end of the driven rotating shaft and the insertion pipe positioned at the bottom end of the other drill pipe are inserted into the lower diversion trench at the top of the drill pipe, after the driven rotating shaft is inserted into the drill pipe, the upper diversion trench in the driven rotating shaft is communicated with the lower diversion trench in the drill pipe, and after the drill pipes are inserted into each other, the lower diversion trenches in the drill pipes are communicated.
8. The geological exploration soil sampling equipment according to claim 1, wherein a film is arranged in the drill pipe, annular pressing plates for limiting and sealing the upper end and the lower end of the film are respectively arranged at the top end and the bottom end of the drill pipe, a one-way valve is fixedly arranged in a lower diversion trench communicated with the air charging tank on the drill pipe, a sealing plug is further arranged at the bottom end of the lower diversion trench, a transverse diversion trench communicated with the lower diversion trench and the inner side of the drill pipe is arranged on the drill pipe, when the drilling of the drill bit is finished, air charging and pressurizing are carried out through the air charging tank, the film is expanded inwards to be tightly attached to soil so as to clamp the soil, when the drill pipe is lifted, the inner side of the drill pipe can be driven to move upwards together, and when the two connected drill pipes are detached, the air in the one-way flowing effect of the one-way valve is utilized, the air leakage in the lower diversion trench is prevented, the film expanded in the lower diversion trench is always in a state of clamping a soil column, the soil column can be conveniently wrapped by the film while the drill pipe is lifted, the soil column is ensured not to be loose, a good layering state is maintained, and the data of each layer can be conveniently surveyed.
9. The geological exploration soil sampling device according to claim 8, wherein the annular pressing plate is provided with an annular groove in the middle of the inner side, so that the annular pressing plate can be conveniently detached from the drill pipe through the annular groove.
10. The geological exploration soil sampling device according to claim 1, wherein the outer side of the drill pipe is further provided with a spiral blade, and through rotation of the spiral blade while drilling pipe, the spiral blade is matched with cooling liquid to flow back upwards on the outer side of the drill pipe, so that the soil is more favorably discharged.

Description

Geological exploration soil layer sampling equipment Technical Field The application relates to the technical field of sampling equipment, in particular to soil layer sampling equipment for geological exploration. Background The geological exploration is to survey and detect geology by various means and methods so as to investigate and research the geological conditions of rocks, strata, structures, minerals, hydrology, landforms and the like in a certain area, wherein the soil sampling is the most commonly used means for the geological exploration, namely, soil samples are researched by sampling the soil of each depth layer of underground, the sampling depth of the soil is deeper in the geological exploration, and a simple cannula is difficult to adapt to the sampling requirement, so drilling equipment is needed. For example, chinese patent publication No. CN114739722B discloses a soil sampling method for geological exploration, which drills soil by driving a screw, and samples and surveys by collecting the drilled soil, however, after the soil is drilled by the screw, the sampled soil is easily mixed in each layer, which is not beneficial to survey and research of soil in each layer, and affects the accuracy of the address exploration result. The Chinese patent publication No. CN116448485B discloses a soil stratified sampling device, which utilizes a plurality of sampling cylinders which are longitudinally and equidistantly arranged on a sampling rod to sample soil with different depths after the soil is drilled and descended by the sampling rod, and avoids the mixing of the soil of each layer, but adopts the soil of each layer to sample the soil at intervals in a stratified manner, thus leading to the non-continuity of the sampled soil layer and affecting the accuracy of geological exploration results. Disclosure of Invention The application provides geological exploration soil layer sampling equipment which has the advantages of good effect of sampling deep soil and higher accuracy of sampling results, and is used for solving the problems that the existing equipment is easy to mix all layers of soil when drilling and sampling the deep soil, and the accuracy of the geological exploration results can be influenced when sampling samples which are interval soil. The soil layer sampling device for geological exploration comprises a frame and at least one drill pipe, wherein the frame is arranged on a vehicle body, the bottom end of the drill pipe is connected with a drill bit, a movable drill-down device which is driven by a hydraulic cylinder to move up and down is arranged on the frame, the movable drill-down device comprises a driven rotating shaft which is driven by a motor to rotate, a plurality of upper diversion trenches distributed in a circumferential array are arranged on the driven rotating shaft, and an air charging tank which is communicated with two of the upper diversion trenches is also arranged on the driven rotating shaft. The drill pipe is provided with a lower diversion trench communicated with the upper diversion trench, the middle part of the drill bit is hollow, the inside of the drill bit is communicated with the inside of the drill pipe, the top of the drill bit is provided with an annular diversion trench communicated with the lower diversion trench, and the drill bit is also provided with a diversion hole communicated with the annular diversion trench. When the drill soil is sampled, cooling liquid sequentially flows through the upper diversion trench, the lower diversion trench, the annular diversion trench and the diversion holes, the drill bit is cooled, meanwhile, broken soil is driven to flow upwards and discharge, and meanwhile, the soil which is not broken on the inner side of the drill bit forms a soil column to be sampled and positioned on the inner side of the drill pipe. Further, remove the device of boring still including lower locating plate and the last locating plate that sets up from top to bottom, lower locating plate is located the below of going up the locating plate, the piston shaft bottom of pneumatic cylinder and the top fixed connection of going up the locating plate, the both ends between lower locating plate and the last locating plate are fixedly connected with locating piece respectively, and passive pivot and lower locating plate and last locating plate pass through the bearing and rotate to be connected, and lower locating plate and last locating plate that set up from top to bottom limit the passive pivot respectively, ensure the rotation that passive pivot can be stable, simultaneously drive the piston shaft by the pneumatic cylinder and drive the locating plate and reciprocate, and then drive and remove down the whole up-and-down movement of boring device. Further, two groups of limiting rods are fixedly installed on the frame, the number of one group of limiting rods is at least two, two limiting rods in the same group are movably sleeved with one