Geological exploration sampling device

Abstract

The invention relates to the technical field of geological exploration, in particular to a geological exploration sampling device which comprises a supporting frame and a drill rod. The device is characterized in that a motor is fixed to the top of the supporting frame, a main shaft is fixed to the output end of the motor, the main shaft penetrates through the top of the supporting frame and is rotationally connected with the top of the supporting frame, the lower end of the main shaft extends into the drill rod and is connected with the drill rod through a transmission mechanism, and a supporting plate is arranged outside the drill rod and rotationally connected with the drill rod; wherein an impact mechanism is arranged above the supporting plate, when the motor drives the main shaft to rotate, on one hand, the main shaft drives the drill rod to rotate through the transmission mechanism, and on the other hand, the main shaft continuously impacts the supporting plate through the impact mechanism, so that the supporting plate drives the drill rod to move downwards; according to the device, a large impact force can be exerted on the drill rod, so that the drill rod can rapidly crush the stratum, the drilling speed can be remarkably increased in cooperation with rotation of the drill rod, and then the exploration sampling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration, and specifically to a geological exploration sampling device. Background Art

[0002] Geological exploration refers to the work of using mechanical tools to conduct excavation operations deep underground to understand the geological conditions. In places where there are few surface outcrops, significant lithological changes, or complex geological structures, it is often impossible to clarify the geological conditions solely by ground observation. This requires the use of geological exploration sampling devices to understand and collect the geological conditions and samples in the deep underground. Geological exploration sampling devices are equipment used to collect samples of underground rocks, soils, minerals, etc., and are widely used in fields such as mineral exploration, environmental monitoring, and engineering geology.

[0003] In the prior art, most use the rotation and linear motion of drill pipes to achieve the purpose of drilling and sampling. However, most of the current linear motion methods of drill pipes are continuous feeding methods driven by hydraulic or mechanical means, with relatively weak penetration ability. In hard strata, the drilling efficiency is low, and it takes a longer time to reach the target depth. During this period, it may cause greater disturbance to the surrounding strata, reducing the integrity of the samples. Summary of the Invention

[0004] The purpose of the present invention is to provide a geological exploration sampling device to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A geological exploration sampling device includes a support frame and a drill pipe. A motor is fixed at the top of the support frame, and a main shaft is fixed at the output end of the motor. The main shaft penetrates through the top of the support frame and is rotatably connected to the top of the support frame. The lower end of the main shaft extends into the drill pipe and is connected to the drill pipe through a transmission mechanism. A support plate is provided outside the drill pipe, and the support plate is rotatably connected to the drill pipe. An impact mechanism is provided above the support plate. When the motor drives the main shaft to rotate, on the one hand, the main shaft drives the drill pipe to rotate through the transmission mechanism, and on the other hand, the main shaft continuously impacts the support plate through the impact mechanism, so that the support plate drives the drill pipe to move downward.

[0006] Preferably: The transmission mechanism includes limit blocks fixed outside the main shaft and symmetrically distributed about the main shaft. Limit grooves adapted to the limit blocks are provided on the inner wall of the drill pipe. The limit blocks are located inside the limit grooves and are slidably connected to the limit grooves. Limit rods symmetrically distributed about the main shaft are fixed at the bottom of the support frame. The limit rods penetrate through the support plate and are slidably connected to the support plate.

[0007] Preferably, the impact mechanism includes a lifting plate, which is connected to a lifting assembly for intermittently driving the lifting plate to move downward. A first air cylinder is fixed to the bottom of the lifting plate. A first piston is slidably connected inside the first air cylinder. A first rod is fixed to the bottom of the first piston. The first rod penetrates through the bottom of the first air cylinder and is slidably connected to the bottom of the first air cylinder. An impact block for impacting the support plate is fixed to the bottom of the first rod. A first elastic member is fixed to the top of the impact block, and the top of the first elastic member is fixedly connected to the bottom of the first air cylinder. The first air cylinder is connected to an air charging assembly for charging air into the first air cylinder, so that the first piston drives the impact block to move upward through the first rod.

[0008] Preferably, the air charging assembly includes a first air pipe communicating with the first air cylinder. The position where the first air pipe communicates with the first air cylinder is below the first piston. The end of the first air pipe away from the first air cylinder communicates with a second air cylinder. A fixing frame is fixed to the outside of the second air cylinder, and the fixing frame is fixedly connected to the top of the support frame. The second air cylinder is connected to a pressure boosting component for increasing the air pressure inside the second air cylinder, so that the gas inside the second air cylinder enters the first air cylinder through the first air pipe.

[0009] Preferably, the pressure boosting component includes a second piston slidably connected to the inner wall of the second air cylinder. A second rod is fixed to the end face of the second piston. The second rod penetrates through the end of the second air cylinder and is slidably connected to the end of the second air cylinder. A baffle is fixed to the end of the second rod away from the second piston. An extrusion plate capable of extruding the baffle is fixed to the outside of the main shaft.

[0010] Preferably, a fixing rod is fixed to the top of the support frame. The fixing rod is fixedly connected to a guiding column. The second rod passes through the guiding column and is slidably connected to the guiding column. A pin rod penetrates through the bottom of the guiding column. A pin slot adapted to the pin rod is provided on the side wall of the second rod. A stop block is fixed to one end of the pin rod. A second elastic member is fixed to the top of the stop block, and the upper end of the second elastic member is fixedly connected to the bottom of the guiding column. The stop block is connected to a traction component for pulling the pin rod out of the pin slot.

[0011] Preferably, the traction component includes a connecting plate fixedly connected to the main shaft. The stop block is made of a metal material, and a magnet capable of attracting the metal block is fixed to the top of the connecting plate.

[0012] Preferably, an adsorption groove is provided on one side of the bottom of the support frame close to the drill rod. A net plate is fixed inside the adsorption groove. The first air cylinder communicates with a second air pipe and a third air pipe. The positions where the second air pipe and the third air pipe communicate with the first air cylinder are above the first piston. Check valves are provided on both the second air pipe and the third air pipe. The end of the second air pipe away from the first air cylinder communicates with the adsorption groove.

[0013] Preferably: the lifting assembly includes a threaded rod threadedly connected to the lifting plate, the top and bottom of the threaded rod are respectively rotatably connected to the top and bottom of the support frame, wherein the threaded rod is connected to a rotating part, a slider is fixed on the side wall of the lifting plate, a sliding groove matched with the slider is provided on the inner wall of the support frame, and the slider is located inside the sliding groove and is slidably connected to the sliding groove.

[0014] Preferably: the rotating component includes a circular gear fixed to the outside of the threaded rod, the top of the support frame is rotatably connected to a transmission rod, the transmission rod is connected to the main shaft through a gear set, and an incomplete gear that can mesh with the circular gear is fixed to the bottom of the transmission rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: when the device is used for geological exploration sampling, the motor drives the main shaft to rotate, and the cooperation of the limit block and the limit groove drives the drill rod to rotate at the same time, and the impact block continuously impacts the support plate, and the support plate drives the drill rod to move downward, so that the drill rod can move downward while rotating, thereby achieving the purpose of drilling sampling. Compared with the traditional linear motion method, the present device can exert a greater impact force on the drill rod, so that the drill rod can quickly break the stratum, and cooperate with the rotation of the drill rod itself, which can significantly increase the drilling speed, thereby improving the exploration sampling efficiency, and at the same time can reduce the disturbance to the surrounding bottom layer, ensuring the integrity of the sample; The present invention drives the extrusion plate and the connecting plate to rotate by the main shaft. When the main shaft rotates to a certain extent, the extrusion plate squeezes the baffle plate, and the baffle plate drives the second piston to move inside the second air pressure cylinder through the second support rod, so that the gas inside the second air pressure cylinder can enter the first air pressure cylinder through the first air pipe. The air pressure under the first piston increases, so that the first piston drives the impact block to move upward through the first support rod. While the impact block moves upward, it squeezes the first elastic member, so that the first elastic member is in a compressed state. When the extrusion plate squeezes the baffle plate to the maximum extent, the impact block is at the highest point, and the pin rod is at the second elastic member. Under the action of the stopper, its end automatically enters the pin groove, thereby fixing the second support rod and the impact block. With the rotation of the main shaft, when the magnet on the top of the connecting plate rotates to the bottom of the stopper, the magnet attracts the stopper, so that the stopper drives the pin rod to move downward, and then moves the stopper to the outside of the pin groove, without the fixation of the pin rod. Under the action of the first elastic member, the impact block moves downward rapidly to impact the support plate. Through this structure, the first elastic member can play a force storage role, thereby effectively improving the impact of the impact block on the support plate. While the main shaft is rotating, the present invention also drives the transmission rod to rotate through a gear set. The transmission rod drives the incomplete gear to rotate. When the impact block is at the highest point, the incomplete gear just meshes with the circular gear. The meshing of the incomplete gear and the circular gear drives the threaded rod to rotate a certain angle. The threaded rod drives the lifting plate to move downward through the threaded connection with the lifting plate, thereby reducing the distance between the first air cylinder and the support plate, and effectively ensuring the impact force of the impact block on the support plate each time next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the sampling device in the embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the inner structure of the support frame in the embodiment of the present invention.

[0018] Figure 3 It is a schematic diagram of the connection structure of the first air cylinder in the embodiment of the present invention.

[0019] Figure 4 It is a schematic diagram of the internal structures of the first air cylinder and the second air cylinder in the embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the connection structure of the guide post and the pin rod in the embodiment of the present invention.

[0021] Figure 6 It is a schematic diagram of the connection structure of the lifting plate in the embodiment of the present invention.

[0022] Figure 7 It is a cross-sectional view of the internal structure of the drill rod in the embodiment of the present invention.

[0023] In the figure: 1 - support frame; 2 - impact mechanism; 21 - lifting plate; 22 - first air cylinder; 23 - impact block; 24 - second air cylinder; 25 - adsorption groove; 26 - threaded rod; 27 - first piston; 28 - first support rod; 29 - first elastic member; 210 - first air pipe; 211 - second air pipe; 212 - third air pipe; 213 - chute; 214 - second piston; 215 - second support rod; 216 - baffle; 217 - extrusion plate; 218 - guide post; 219 - pin rod; 220 - second elastic member; 221 - stop block; 222 - magnet; 223 - connecting plate; 224 - incomplete gear; 225 - circular gear; 226 - slider; 227 - fixed frame; 228 - fixed rod; 229 - gear set; 3 - transmission mechanism; 31 - limit groove; 32 - limit block; 33 - limit rod; 4 - motor; 5 - main shaft; 6 - drill rod; 7 - support plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] The following describes in detail the specific implementation of the present invention with reference to specific embodiments.

[0026] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 7 , a geological exploration sampling device, including a support frame 1 and a drill pipe 6. A motor 4 is fixed at the top of the support frame 1. The output end of the motor 4 is fixed with a main shaft 5. The main shaft 5 penetrates through the top of the support frame 1 and is rotationally connected to the top of the support frame 1. The lower end of the main shaft 5 extends into the drill pipe 6 and is connected to the drill pipe 6 through a transmission mechanism 3. A support plate 7 is arranged outside the drill pipe 6. The support plate 7 is rotationally connected to the drill pipe 6. An impact mechanism 2 is arranged above the support plate 7. When the motor 4 drives the main shaft 5 to rotate, on the one hand, the main shaft 5 drives the drill pipe 6 to rotate through the transmission mechanism 3, and on the other hand, the main shaft 5 continuously impacts the support plate 7 through the impact mechanism 2, so that the support plate 7 drives the drill pipe 6 to move downward.

[0027] In this embodiment, when the device is used for geological exploration sampling, the support frame 1 is placed at the position where sampling is required, and then the motor 4 is started. The motor 4 drives the main shaft 5 to rotate. On the one hand, the main shaft 5 drives the drill pipe 6 to rotate through the transmission mechanism 3, and on the other hand, the main shaft 5 continuously impacts the support plate 7 through the impact mechanism 2. The support plate 7 drives the drill pipe 6 to move downward, so that the drill pipe 6 can rotate and move downward at the same time, and thus the purpose of drilling and sampling can be achieved. The present invention uses the impact method to make the drill pipe 6 rotate and move downward at the same time. Compared with the traditional linear motion method, the device can exert a greater impact force on the drill pipe 6, so that the drill pipe 6 can quickly break through the formation, and combined with the rotation of the drill pipe 6 itself, the drilling speed can be significantly improved, thereby improving the exploration sampling efficiency. At the same time, it can also reduce the disturbance to the surrounding strata and ensure the integrity of the sample. In order to make the support plate 7 drive the drill pipe 6 to move downward while not affecting the rotation of the drill pipe 6, the drill pipe 6 can be rotationally connected to the support plate 7 through a bearing, or a circular groove is arranged inside the support plate 7, and a ring adapted to the circular groove is fixed outside the drill pipe 6. The ring is located inside the circular groove and is slidably connected to the circular groove.

[0028] Please refer to Figure 1 and Figure 7, the transmission mechanism 3 includes limit blocks 32 fixed outside the main shaft 5 and symmetrically distributed about the main shaft 5. Limit grooves 31 adapted to the limit blocks 32 are provided on the inner wall of the drill pipe 6. The limit blocks 32 are located inside the limit grooves 31 and are slidably connected to the limit grooves 31. Limit rods 33 symmetrically distributed about the main shaft 5 are fixed to the bottom of the support frame 1. The limit rods 33 penetrate through the support plate 7 and are slidably connected to the support plate 7; When the device conducts geological exploration and sampling, the motor 4 drives the main shaft 5 to rotate. While the main shaft 5 rotates, the drill pipe 6 is driven to rotate through the cooperation of the limit block 32 and the limit groove 31. At the same time, the arrangement of the limit block 32 and the limit groove 31 enables the drill pipe 6 to move downward relative to the main shaft 5. Furthermore, when the drill pipe 6 rotates, it can also move downward under the action of the impact mechanism 2, effectively ensuring the drilling speed of the drill pipe 6.

[0029] Please refer to Figure 3 and Figure 4 , the impact mechanism 2 includes a lifting plate 21. The lifting plate 21 is connected with a lifting assembly, and the lifting assembly is used to drive the lifting plate 21 to move downward intermittently. A first air cylinder 22 is fixed to the bottom of the lifting plate 21. A first piston 27 is slidably connected inside the first air cylinder 22. A first support rod 28 is fixed to the bottom of the first piston 27. The first support rod 28 penetrates through the bottom of the first air cylinder 22 and is slidably connected to the bottom of the first air cylinder 22. An impact block 23 for impacting the support plate 7 is fixed to the bottom of the first support rod 28. A first elastic member 29 is fixed to the top of the impact block 23. The top of the first elastic member 29 is fixedly connected to the bottom of the first air cylinder 22. Among them, the first air cylinder 22 is connected with an air charging assembly, and the air charging assembly is used to charge the first air cylinder 22 with air, so that the first piston 27 drives the impact block 23 to move upward through the first support rod 28; When conducting geological exploration sampling, the inflation assembly inflates the inside of the first air cylinder 22. The increased air pressure below the first piston 27 causes the first piston 27 to drive the impact block 23 upward through the first support rod 28. While the impact block 23 moves upward, it compresses the first elastic member 29, causing the first elastic member 29 to be in a compressed state. When the impact block 23 rises to a certain height, the inflation assembly stops inflating the inside of the first air cylinder 22. At this time, the first elastic member 29 releases its elastic potential energy, driving the impact block 23 to move downward and strike the support plate 7. After being struck, the support plate 7 drives the drill rod 6 to move downward, enabling the drill rod 6 to rotate and move downward simultaneously, thereby ensuring the drilling speed of the drill rod 6. The first elastic member 29 can be a spring. After the impact block 23 strikes the support plate 7, the inflation assembly inflates the inside of the first air cylinder 22 again, causing the first piston 27 to drive the impact block 23 upward through the first support rod 28 again. Since the distance between the support plate 7 and the first air cylinder 22 increases after the support plate 7 is struck, when the inflation assembly stops inflating the inside of the first air cylinder 22, the impact force of the impact block 23 on the support plate 7 will decrease. And when the support plate 7 moves downward to a certain extent, the impact force of the impact block 23 on the support plate 7 is almost zero. At this time, the lifting assembly drives the lifting plate 21 to move downward, reducing the distance between the first air cylinder 22 and the support plate 7, thereby ensuring the impact force of the impact block 23 on the support plate 7 each time. The first air pipe 210 can be a flexible pipe.

[0030] Please refer to Figure 3 and Figure 4 As shown in FIGS. and, the inflation assembly includes a first air pipe 210 communicating with the first air cylinder 22. The position where the first air pipe 210 communicates with the first air cylinder 22 is below the first piston 27. The end of the first air pipe 210 away from the first air cylinder 22 is connected to a second air cylinder 24. A fixed frame 227 is fixed outside the second air cylinder 24, and the fixed frame 227 is fixedly connected to the top of the support frame 1. The second air cylinder 24 is connected with a pressurizing component, which is used to increase the air pressure inside the second air cylinder 24, so that the gas inside the second air cylinder 24 enters the inside of the first air cylinder 22 through the first air pipe 210. When conducting geological exploration sampling, the motor 4 drives the main shaft 5 to rotate. When the main shaft 5 rotates to a certain extent, the pressurizing component increases the air pressure inside the second air cylinder 24, so that the gas inside the second air cylinder 24 enters the first air cylinder 22 through the first air pipe 210. Then, the first piston 27 can drive the impact block 23 to move upward through the first support rod 28. When the main shaft 5 rotates to a certain extent, the pressurizing component no longer increases the pressure inside the second air cylinder 24, and the impact block 23 moves downward under the action of the first elastic member 29 to impact the support plate 7. At the same time, the first piston 27 is driven to move downward through the first support rod 28, so that the gas inside the first air cylinder 22 flows back to the second air cylinder 24 through the first air pipe 210, and then the second piston 214 automatically resets.

[0031] Please refer to Figure 3 and Figure 4 The pressurizing component includes a second piston 214 slidably connected to the inner wall of the second air cylinder 24. A second support rod 215 is fixed to the end face of the second piston 214. The second support rod 215 penetrates through the end of the second air cylinder 24 and is slidably connected to the end of the second air cylinder 24. A baffle 216 is fixed to the end of the second support rod 215 away from the second piston 214. An extrusion plate 217 capable of extruding the baffle 216 is fixed to the outside of the main shaft 5. When conducting geological exploration sampling, the motor 4 drives the main shaft 5 to rotate, and the main shaft 5 drives the extrusion plate 217 to rotate. When the extrusion plate 217 rotates to a certain extent, the extrusion plate 217 extrudes the baffle 216. The baffle 216 drives the second piston 214 to move inside the second air cylinder 24 through the second support rod 215, so that the gas inside the second air cylinder 24 can enter the first air cylinder 22 through the first air pipe 210. As the main shaft 5 continues to rotate, the extrusion degree of the extrusion plate 217 on the baffle 216 decreases, so that the impact block 23 can impact the support plate 7 under the action of the first elastic member 29.

[0032] In another embodiment, please refer to Figure 3 、 Figure 4 and Figure 5 A fixing rod 228 is fixed to the top of the support frame 1. The fixing rod 228 is fixedly connected with a guide post 218. The second support rod 215 passes through the inside of the guide post 218 and is slidably connected to the guide post 218. A pin rod 219 penetrates through the bottom of the guide post 218. A pin slot adapted to the pin rod 219 is provided on the side wall of the second support rod 215. A stop block 221 is fixed to one end of the pin rod 219. A second elastic member 220 is fixed to the top of the stop block 221. The upper end of the second elastic member 220 is fixedly connected to the bottom of the guide post 218. A traction component is connected to the stop block 221, and the traction component is used to pull the pin rod 219 out of the pin slot. In this embodiment, the end of the pin 219 slides on the surface of the second support rod 215 while the second support rod 215 moves. When the extrusion plate 217 squeezes the baffle 216 to the maximum extent, the impact block 23 is located at the highest point. At the same time, the pin groove on the side wall of the second support rod 215 is aligned with the pin 219 (the pin groove is not marked in the figure). The end of the pin 219 automatically enters the pin groove under the action of the second elastic member 220 and the baffle 221. The second elastic member 220 can be a spring, which plays a fixing role on the second support rod 215, thereby also playing a fixing role on the impact block 23. As the main shaft 5 rotates, when the main shaft 5 rotates to a certain extent, the traction component automatically pulls the pin 219 to the outside of the pin groove, and the fixation of the pin 219 is lost. The impact block 23 moves downward rapidly under the action of the first elastic member 29, thereby impacting the support plate 7. Through this structure, the first elastic member 29 can play a force storage role, thereby effectively improving the impact of the impact block 23 on the support plate 7, thereby ensuring the drilling speed.

[0033] See also Figure 5 The traction component includes a connecting plate 223 fixedly connected to the main shaft 5, wherein the stopper 221 is made of metal material, and a magnet 222 capable of attracting the metal block is fixed on the top of the connecting plate 223; When the main shaft 5 rotates, the magnet 222 is also driven to move in a circle through the connecting plate 223. When the magnet 222 rotates to the bottom of the stopper 221, the magnet 222 attracts the stopper 221, so that the stopper 221 drives the pin rod 219 to move downward, and then moves the stopper 221 to the outside of the pin groove. When the pin rod 219 moves to the outside of the pin groove, the second support rod 215 automatically resets. At the same time, as the main shaft 5 continues to rotate, the magnet 222 no longer attracts the stopper 221. When the pin rod 219 is aligned with the pin groove again, the stopper 221 can drive the pin rod 219 to move to the inside of the pin groove again under the action of the second elastic member 220.

[0034] See also Figure 3 and Figure 4 The bottom of the support frame 1 is provided with an adsorption groove 25 on one side close to the drill rod 6, a mesh plate is fixed inside the adsorption groove 25, the first air pressure cylinder 22 is connected with the second air pipe 211 and the third air pipe 212, the position where the second air pipe 211 and the third air pipe 212 are connected to the first air pressure cylinder 22 is located above the first piston 27, and the second air pipe 211 and the third air pipe 212 are both provided with a one-way valve, wherein the end of the second air pipe 211 away from the first air pressure cylinder 22 is connected with the adsorption groove 25; When the impact block 23 impacts the support plate 7 under the action of the first elastic member 29, the drill pipe 6 moves downward relative to the ground. At this time, a certain amount of dust may be generated at the ground. While the impact block 23 moves downward, it also drives the first piston 27 to move downward inside the first air cylinder 22 through the first rod 28. A negative pressure is formed inside the first air cylinder 22 above the first piston 27. At the same time, under the action of the one-way valve, the first air cylinder 22 inhales the gas inside the adsorption groove 25 into the first air cylinder 22 through the second air pipe 211. The adsorption groove 25 generates suction to inhale the dust at the ground into the adsorption groove 25, and the dust is filtered by the mesh plate (the mesh plate and the one-way valve are not shown in the figure). After the impact block 23 finishes impacting the support plate 7, the gas inside the second air cylinder 24 enters the first air cylinder 22 through the first air pipe 210, so that the first piston 27 moves upward. The first piston 27 compresses the gas above it. Under the action of the one-way valve, the gas is discharged to the outside through the third air pipe 212. This mechanism can adsorb the dust at the ground, thereby avoiding the damage caused by the dust generated during the exploration and sampling process to the staff. Both the second air pipe 211 and the third air pipe 212 can be flexible hoses.

[0035] Please refer to Figure 6 , the lifting assembly includes a threaded rod 26 threadedly connected to the lifting plate 21. The top and bottom of the threaded rod 26 are respectively rotatably connected to the top and bottom of the support frame 1. The threaded rod 26 is connected with a rotating component. A slider 226 is fixed on the side wall of the lifting plate 21, and a chute 213 adapted to the slider 226 is provided on the inner wall of the support frame 1. The slider 226 is located inside the chute 213 and is slidably connected to the chute 213; After the impact block 23 impacts the support plate 7, the first piston 27 drives the impact block 23 to move upward through the first rod 28. When the impact block 23 moves upward to a certain extent and stops moving, at this time, the rotating assembly drives the threaded rod 26 to rotate a certain angle. The threaded rod 26 drives the lifting plate 21 to move downward through the threaded connection with the lifting plate 21, thereby reducing the distance between the first air cylinder 22 and the support plate 7, and effectively ensuring the impact force of the impact block 23 on the support plate 7 each time. The chute 213 can play a limiting role on the lifting plate 21 through the slider 226, ensuring the stability of the lifting plate 21 during movement.

[0036] Please refer to Figure 6 , the rotating component includes a circular gear 225 fixed outside the threaded rod 26. A transmission rod is rotatably connected to the top of the support frame 1. The transmission rod is connected to the main shaft 5 through a gear set 229. An incomplete gear 224 that can mesh with the circular gear 225 is fixed to the bottom of the transmission rod; When conducting geological exploration sampling, the main shaft 5 is driven to rotate by the motor 4. While the main shaft 5 is rotating, it also drives the transmission rod to rotate through the gear set 229, and the transmission rod drives the incomplete gear 224 to rotate. After the impact block 23 impacts the support plate 7, the first piston 27 drives the impact block 23 to move upward through the first rod 28. When the impact block 23 moves upward to a certain extent and stops moving, at this time, the incomplete gear 224 just meshes with the circular gear 225, and the meshing of the incomplete gear 224 and the circular gear 225 drives the threaded rod 26 to rotate a certain angle, so that the lifting plate 21 can move downward a certain distance.

[0037] Working principle: When the device conducts geological exploration sampling, the support frame 1 is placed at the position where sampling is required. Subsequently, the motor 4 is started, and the motor 4 drives the main shaft 5 to rotate. While the main shaft 5 rotates, the drill rod 6 is driven to rotate through the cooperation of the limit block 32 and the limit groove 31. At the same time, the arrangement of the limit block 32 and the limit groove 31 enables the drill rod 6 to move downward relative to the main shaft 5. While the main shaft 5 rotates, it also drives the extrusion plate 217 and the connecting plate 223 to rotate. When the main shaft 5 rotates to a certain extent, the extrusion plate 217 extrudes the baffle 216. The baffle 216 drives the second piston 214 to move inside the second air cylinder 24 through the second support rod 215, so that the gas inside the second air cylinder 24 can enter the first air cylinder 22 through the first air pipe 210. The increase in air pressure below the first piston 27 causes the first piston 27 to drive the impact block 23 to move upward through the first support rod 28. While the impact block 23 moves upward, it squeezes the first elastic member 29, making the first elastic member 29 in a compressed state. When the extrusion plate 217 squeezes the baffle 216 to the maximum extent, the impact block 23 is at the highest point. At the same time, the pin groove on the side wall of the second support rod 215 is aligned with the pin rod 219. The end of the pin rod 219 automatically enters the pin groove under the action of the second elastic member 220 and the stop block 221, thereby playing a fixing role on the second support rod 215 and also playing a fixing role on the impact block 23. As the main shaft 5 rotates, when the magnet 222 on the top of the connecting plate 223 rotates to directly below the stop block 221, the magnet 222 attracts the stop block 221, so that the stop block 221 drives the pin rod 219 to move downward, and then moves the stop block 221 outside the pin groove. Losing the fixation of the pin rod 219, the impact block 23 quickly moves downward under the action of the first elastic member 29 and impacts the support plate 7. Through this structure, the first elastic member 29 can be charged, effectively improving the impact of the impact block 23 on the support plate 7, exerting a greater impact force on the drill rod 6, enabling the drill rod 6 to quickly break through the formation. And combined with the rotation of the drill rod 6 itself, the drilling speed can be significantly increased, thereby improving the exploration sampling efficiency. At the same time, it can also reduce the disturbance to the surrounding strata and ensure the integrity of the sample. In addition, while the main shaft 5 rotates, it also drives the transmission rod to rotate through the gear set 229, and the transmission rod drives the incomplete gear 224 to rotate. When the impact block 23 is at the highest point, the incomplete gear 224 just meshes with the circular gear 225. The meshing of the incomplete gear 224 and the circular gear 225 drives the threaded rod 26 to rotate a certain angle. The threaded rod 26 drives the lifting plate 21 to move downward through the threaded connection with the lifting plate 21, thereby reducing the distance between the first air cylinder 22 and the support plate 7, and effectively ensuring the impact force of the impact block 23 on the support plate 7 each time next time.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A geological exploration sampling device, comprising a support frame and a drill rod; characterized in that: A motor is fixed on the top of the support frame, and a main shaft is fixed on the output end of the motor. The main shaft passes through the top of the support frame and is rotatably connected to the top of the support frame. The lower end of the main shaft extends into the drill rod and is connected to the drill rod through a transmission mechanism. A support plate is provided on the outside of the drill rod, and the support plate is rotatably connected to the drill rod, wherein an impact mechanism is provided above the support plate. When the motor drives the main shaft to rotate, the main shaft drives the drill rod to rotate through the transmission mechanism on the one hand, and the main shaft continuously impacts the support plate through the impact mechanism on the other hand, so that the support plate drives the drill rod to move downward.

2. A geological prospecting sampling device according to claim 1, characterized in that: The transmission mechanism includes a limit block fixed on the outside of the main shaft and symmetrically distributed about the main shaft, a limit groove matched with the limit block is provided on the inner wall of the drill rod, the limit block is located inside the limit groove and is slidably connected to the limit groove, and a limit rod symmetrically distributed about the main shaft is fixed to the bottom of the support frame, the limit rod passes through the support plate and is slidably connected to the support plate.

3. A geological prospecting sampling device according to claim 1, characterized in that: The impact mechanism includes a lifting plate, the lifting plate is connected to a lifting assembly, the lifting assembly is used to drive the lifting plate to move downward intermittently, a first air pressure cylinder is fixed at the bottom of the lifting plate, a first piston is slidably connected inside the first air pressure cylinder, a first support rod is fixed at the bottom of the first piston, the first support rod passes through the bottom of the first air pressure cylinder and is slidably connected to the bottom of the first air pressure cylinder, an impact block for impacting the support plate is fixed at the bottom of the first support rod, a first elastic member is fixed on the top of the impact block, and the top of the first elastic member is fixedly connected to the bottom of the first air pressure cylinder, wherein the first air pressure cylinder is connected to an inflation assembly, the inflation assembly is used to inflate the first air pressure cylinder, so that the first piston drives the impact block to move upward through the first support rod.

4. A geological prospecting sampling device according to claim 3, characterized in that: The inflation assembly includes a first air pipe connected to the first air cylinder, the position where the first air pipe is connected to the first air cylinder is located below the first piston, the first air pipe is connected to the second air cylinder at one end away from the first air cylinder, a fixing frame is fixed to the outside of the second air cylinder, the fixing frame is fixedly connected to the top of the support frame, wherein the second air cylinder is connected to a boosting component, the boosting component is used to increase the air pressure inside the second air cylinder, so that the gas inside the second air cylinder enters into the first air cylinder through the first air pipe.

5. A geological prospecting sampling device according to claim 4, characterized in that: The boosting component includes a second piston that is slidably connected to the inner wall of the second air cylinder, a second support rod is fixed on the end surface of the second piston, the second support rod passes through the end of the second air cylinder and is slidably connected to the end of the second air cylinder, a baffle is fixed at one end of the second support rod away from the second piston, and an extrusion plate that can extrude the baffle is fixed to the outside of the main shaft.

6. A geological prospecting sampling device according to claim 5, characterized in that: A fixing rod is fixed on the top of the support frame, and the fixing rod is fixedly connected to a guide column. The second support rod passes through the inside of the guide column and is slidably connected to the guide column. A pin rod passes through the bottom of the guide column, and a pin groove matching the pin rod is provided on the side wall of the second support rod. A stopper is fixed to one end of the pin rod, and a second elastic member is fixed to the top of the stopper. The upper end of the second elastic member is fixedly connected to the bottom of the guide column, wherein the stopper is connected to a traction component, and the traction component is used to pull the pin rod to the outside of the pin groove.

7. A geological prospecting sampling device according to claim 6, characterized in that: The traction component comprises a connecting plate fixedly connected to the main shaft, wherein the stopper is made of metal material, and a magnet capable of attracting the metal block is fixed on the top of the connecting plate.

8. A geological prospecting sampling device according to claim 4, characterized in that: An adsorption groove is provided on one side of the bottom of the support frame close to the drill rod, and a mesh plate is fixed inside the adsorption groove. The first air pressure cylinder is connected to the second air pipe and the third air pipe. The position where the second air pipe and the third air pipe are connected to the first air pressure cylinder is located above the first piston, and the second air pipe and the third air pipe are both provided with a one-way valve, and the end of the second air pipe away from the first air pressure cylinder is connected to the adsorption groove.

9. A geological prospecting sampling device according to claim 3, characterized in that: The lifting assembly includes a threaded rod threadedly connected to the lifting plate, the top and bottom of the threaded rod are rotatably connected to the top and bottom of the support frame respectively, wherein the threaded rod is connected to a rotating part, a slider is fixed on the side wall of the lifting plate, and a sliding groove adapted to the slider is provided on the inner wall of the support frame, and the slider is located inside the sliding groove and is slidably connected to the sliding groove.

10. A geological prospecting sampling device according to claim 9, characterized in that: The rotating component includes a circular gear fixed on the outside of the threaded rod, and the top of the support frame is rotatably connected to a transmission rod, which is connected to the main shaft through a gear set, wherein an incomplete gear that can mesh with the circular gear is fixed at the bottom of the transmission rod.

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