Geological exploration sampling device for mineral mining

Abstract

The invention relates to the technical field of geological prospecting, and discloses a geological prospecting sampling device for mineral mining, which comprises a drilling cylinder, and further comprises a sampling mechanism, the sampling mechanism is arranged in the drilling cylinder, the sampling mechanism comprises a rotating plate arranged at the top of the drilling cylinder, and the sampling mechanism is used for sampling a sample when the device drills into a specified depth. Sampling the rock core at the corresponding position; and the fixing mechanism is arranged in the drilling barrel, and the fixing mechanism comprises a plurality of fixing plates arranged in the drilling barrel. According to the invention, as the drilling cylinder rotates and descends to the underground, the rock core near the corresponding feeding chute can be drilled to be broken, and after the feeding chute is opened, the rock core fragments can enter the collecting annular cylinder along the feeding chute to be collected and sampled; in the process that a trapezoidal limiting block continuously impacts a fixing plate, rock core fragments near a feeding chute can be accelerated to enter a collecting annular barrel by slight vibration of a drilling barrel, so that the rock core sampling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration equipment, and particularly to a geological exploration sampling device for mineral mining. Background Art

[0002] In the field of core sampling equipment, traditional drilling devices usually control the opening and closing of the feed inlet manually or through mechanical linkage, which has problems such as complex operation, lagging response, and poor sealing. Especially in complex geological conditions, the feed inlet is prone to frequent opening and closing, improper closing, etc. due to vibration or unreasonable structural design, resulting in ineffective collection of core debris, and even causing sample contamination or sampling failure.

[0003] Some sampling devices in the prior art lack the automatic control function for the feed channel, making it difficult to synchronize drilling and sampling, affecting the operation efficiency and sampling quality, resulting in low sampling efficiency and sample contamination. Summary of the Invention

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

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is a geological exploration sampling device for mineral mining, including a drill pipe, and further includes: A sampling mechanism, the sampling mechanism is arranged inside the drill pipe. The sampling mechanism includes a rotating plate arranged at the top of the drill pipe. The sampling mechanism is used to sample the core at the corresponding position when the device drills to a specified depth; A fixing mechanism, the fixing mechanism is arranged inside the drill pipe. The fixing mechanism includes several fixing plates arranged inside the drill pipe. The fixing mechanism is used to stop the rotation of the drill pipe and start the collection work when the drill pipe reaches a specified depth; A discharging mechanism, the discharging mechanism is arranged inside the drill pipe. The discharging mechanism includes two discharging grooves arranged inside the drill pipe. The discharging mechanism is used to discharge the collected core samples after sampling is completed and the drill pipe returns to its original position.

[0006] Further, the sampling mechanism includes a rotating plate rotatably installed at the top of the drill pipe. A driving motor is fixedly installed at the top of the rotating plate. A rotating shaft is fixedly installed on the output shaft of the driving motor. The bottom end of the rotating shaft rotatably extends into the drill pipe. A support plate is rotatably installed inside the drill pipe, and the rotating shaft rotates through the support plate.

[0007] Further, a circular plate is slidably sleeved on the rotating shaft, and a plurality of L-shaped circular rods are fixedly installed on the top of the circular plate. A plurality of limiting grooves are formed in the inner wall of the drilling cylinder, and limiting springs are fixedly installed on the top inner walls of the plurality of limiting grooves respectively.

[0008] Further, closing blocks are fixedly installed at the bottom ends of the plurality of limiting springs respectively, and the mutually remote ends of the plurality of L-shaped circular rods are fixedly connected to the plurality of closing blocks respectively. A plurality of feeding inclined grooves are formed in the inner wall of the drilling cylinder, and the bottom ends of the plurality of closing blocks respectively slide and extend into the feeding inclined grooves and are respectively in contact with the bottom inner walls of the plurality of feeding inclined grooves.

[0009] Further, the fixing mechanism includes a plurality of fixing plates fixedly installed on the bottom inner wall of the drilling cylinder. A plurality of L-shaped hollow plates are fixedly installed on the rotating shaft. Telescopic springs are fixedly installed on the top inner walls of the plurality of L-shaped hollow plates respectively. Trapezoidal limiting blocks are fixedly installed at the bottom ends of the plurality of telescopic springs respectively, and the bottom ends of the plurality of trapezoidal limiting blocks respectively slide and extend out of the L-shaped hollow plates.

[0010] Further, telescopic circular rods are fixedly installed at the top parts of the plurality of trapezoidal limiting blocks respectively. The top ends of the plurality of telescopic circular rods respectively slide and extend out of the plurality of L-shaped hollow plates. An annular plate is fixedly installed at the top of the plurality of telescopic circular rods, and the top end of the annular plate is in contact with the circular plate.

[0011] Further, a plurality of rectangular grooves are formed in the outer wall of the drilling cylinder. Fixed springs are fixedly installed on the mutually close inner walls of the plurality of rectangular grooves respectively. Arc-shaped fixing blocks are fixedly installed at the mutually remote ends of the plurality of fixed springs respectively, and the mutually remote ends of the plurality of arc-shaped fixing blocks respectively slide and extend out of the rectangular grooves.

[0012] Further, the discharging mechanism includes two discharging grooves formed in the inner wall of the drilling cylinder. Closing plates are respectively slidably installed in the two discharging grooves. The bottom ends of the two closing plates respectively slide and extend into the drilling cylinder. Two strip-shaped grooves are formed in the drilling cylinder. Circular closing rods are respectively slidably installed in the two strip-shaped grooves. The bottom ends of the two circular closing rods are respectively fixedly connected to the two closing plates. Rectangular limiting plates are respectively fixedly sleeved on the two circular closing rods. Return springs are fixedly installed at the bottom ends of the two rectangular limiting plates respectively, and the bottom ends of the two return springs are respectively fixedly connected to the bottom inner walls of the two strip-shaped grooves.

[0013] Further, a collecting annular cylinder is fixedly installed on the inner wall of the drill pipe. Two discharge ports are formed in the outer wall of the collecting annular cylinder. The two discharge ports communicate with two discharge grooves respectively. The tops of the two circular closing rods all slide and extend outside the drill pipe. A movable mounting frame is arranged below the drill pipe, and a strip-shaped hollow box is fixedly installed on the top of the movable mounting frame.

[0014] Further, a multi-stage hydraulic cylinder is fixedly installed on the inner wall of the top of the strip-shaped hollow box. The output end of the multi-stage hydraulic cylinder is fixedly installed with a special-shaped connecting plate. The front surface of the special-shaped connecting plate slides and extends outside the strip-shaped hollow box and is fixedly connected with a rotating plate. Two limiting strip-shaped plates are fixedly installed on the front surface of the strip-shaped hollow box. The tops of the two circular closing rods are fixedly installed with an annular limiting plate.

[0015] The present invention has the following beneficial effects: (1) For the geological exploration sampling device for mineral mining in the present invention, when the trapezoidal limiting block rotates clockwise and contacts the fixed plate, the trapezoidal limiting block will rise under its inclined surface. At this time, the telescopic spring undergoes compressive deformation. The trapezoidal limiting block drives the telescopic round rod to rise. The telescopic round rod drives the annular plate to rise while rotating. The annular plate drives the round plate to rise. The round plate drives the L-shaped round rod to rise. The L-shaped round rod drives a plurality of closing blocks to rise. At this time, the limiting spring undergoes compressive deformation, and the corresponding feeding inclined groove will be opened. Since the drill pipe rotates and descends underground, the core near the corresponding feeding inclined groove will be drilled and crushed. After the feeding inclined groove is opened, the core fragments will enter the collecting annular cylinder along the feeding inclined groove for collection and sampling. During the process that the trapezoidal limiting block continuously impacts the fixed plate, the slight vibration of the drill pipe will accelerate the entry of the core fragments near the feeding inclined groove into the collecting annular cylinder, thereby improving the efficiency of core sampling. Since the trapezoidal limiting block rotates continuously, the height of the annular plate will basically not change at this time. Therefore, the feeding inclined groove will always be in an open state, ensuring that the feeding inclined groove is always in an open state and will not be frequently closed or unstable in opening and closing due to mechanism fluctuations; (2) The present invention provides a geological prospecting sampling device for mineral mining. When in use, the multi-stage hydraulic cylinder and the driving motor are first started, wherein the multi-stage hydraulic cylinder drives the special-shaped connecting plate to move downward, transmits power to the rotating plate, and then the drill tube moves downward. At the same time, the driving motor drives the rotating shaft to rotate counterclockwise, and the rotating shaft drives the L-shaped hollow plate to rotate synchronously, and the L-shaped hollow plate drives the trapezoidal limit block to rotate together. When the flat part of the trapezoidal limit block contacts the fixed plate, friction is generated between the two and they are engaged. At this time, the trapezoidal limit block continues to rotate and drives the fixed plate to rotate synchronously, thereby realizing the synchronous rotation function of the drill tube during the descent process, effectively completing the drilling operation. When the drill tube reaches the predetermined depth, the driving motor changes direction and drives the rotating shaft to rotate clockwise, thereby causing the L-shaped hollow plate and the trapezoidal limit block to rotate synchronously. The block rotates accordingly. During this process, the arc surface fixed block will shrink inward along its arc surface structure in the rectangular groove due to the force of the stratum outside the drill barrel, so that the fixing spring is compressed and stores elastic potential energy. When the trapezoidal limit block continues to rotate clockwise and contacts the inclined surface of the fixing plate, the fixing plate is driven to rotate again and further transmits torque to the drill barrel, causing it to produce a slight short-distance rotation. As the drill barrel rotates slightly, the arc surface fixed block also rotates together. However, due to the interaction between its outer plane and the surrounding stratum, the arc surface fixed block will extend from the rectangular groove under the push of the fixing spring and firmly embed into the stratum to form an effective limit support. At this time, the drill barrel is basically in a static state due to the jamming effect of the arc surface fixed block, thereby ensuring the stability and accuracy of the device in the subsequent core sampling process. (3) The present invention provides a geological prospecting sampling device for mineral mining. After completing the core collection, the driving motor rotates counterclockwise again, and the trapezoidal limit block rotates accordingly, and during its movement, it re-contacts the flat part of the fixed plate, thereby driving the fixed plate to continue to rotate. At this time, the fixed plate transmits the rotational power to the drill barrel, causing it to rotate counterclockwise as a whole. At the same time, the arc surface fixed block rotates with the drill barrel under the action of the continuous contact between its outer arc surface and the surrounding rock formation, and gradually breaks away from the state of being stuck in the formation, realizing the automatic unlocking function. In this process, The trapezoidal limit block is reset downward under the elastic restoring force of the telescopic spring, and at the same time drives the entire linkage mechanism to gradually return to its initial state; the closing block is also synchronously moved back under the push of the limit spring, so that the originally opened feed chute is closed. This action accurately controls the opening and closing timing of the feed channel, ensuring that the core enters the collection annular tube smoothly, while effectively preventing soil, rock chips or other impurities at different depths from falling into the collection chamber through the feed chute during the lifting process of the drill tube, thereby avoiding contamination of the collected core samples and ensuring the purity and representativeness of the samples; (4) In the geological exploration sampling device for mineral mining according to the present invention, during the upward movement of the drill cylinder, the circular closing rod connected to its top rises synchronously, and drives the annular limiting plate to move upward together. When the annular limiting plate rises to contact the limiting strip plate, the drill cylinder has basically left the underground environment. At this time, under the blocking and limiting action of the limiting strip plate, the annular limiting plate starts to move downward relative to the drill cylinder, thereby driving the circular closing rod to reset downward. The downward movement of the circular closing rod is transmitted to the rectangular limiting plate, causing it to move downward synchronously, compressing the reset spring, and at the same time driving the closing plate to move downward, gradually opening the discharge slot below. As the closing plate continues to move downward, the discharge slot is completely opened. The core sample originally collected in the collecting annular cylinder enters the discharge slot along the discharge port under the action of gravity and is finally discharged smoothly, realizing the automatic discharging function after core sampling, without manual intervention, which not only effectively saves labor costs, but also significantly improves the overall efficiency and automation level of the sampling operation.

[0016] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the side sectional structure of the present invention; Figure 3 is a schematic diagram of the partial sectional structure of the present invention; Figure 4 is of the present invention Figure 3 an enlarged schematic diagram of A in; Figure 5 is of the present invention Figure 3 an enlarged schematic diagram of B in; Figure 6 is of the present invention Figure 2 an enlarged schematic diagram of C in; Figure 7 is a schematic diagram of the partial side sectional structure of the present invention; Figure 8 is of the present invention Figure 7 an enlarged schematic diagram of D in.

[0019] In the drawings, the list of components represented by each reference numeral is as follows: In the figure: 1. Drill pipe; 102. Rotating plate; 103. Driving motor; 104. Rotating shaft; 105. Support plate; 106. Circular plate; 107. L-shaped circular rod; 108. Limiting groove; 109. Limiting spring; 110. Closing block; 111. Feeding chute; 2. Fixed plate; 201. L-shaped hollow plate; 202. Telescopic spring; 203. Trapezoidal limiting block; 204. Telescopic circular rod; 205. Annular plate; 206. Rectangular groove; 207. Fixed spring; 208. Arc-shaped fixing block; 3. Discharge chute; 301. Closing plate; 302. Strip-shaped groove; 303. Circular closing rod; 304. Rectangular limiting plate; 305. Reset spring; 306. Collecting annular cylinder; 307. Discharge port; 308. Moving mounting frame; 309. Strip-shaped hollow box; 310. Multi-stage hydraulic cylinder; 311. Special-shaped connecting plate; 312. Limiting strip-shaped plate; 313. Annular limiting plate. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1 - 8 As shown, the present invention is a geological exploration sampling device for mineral mining, including a drill pipe 1, and further including: Sampling mechanism, the sampling mechanism is arranged in the drill pipe 1. The sampling mechanism includes a rotating plate 102 arranged at the top of the drill pipe 1. The sampling mechanism is used to sample the core at the corresponding position when the device drills to the specified depth. Fixing mechanism, the fixing mechanism is arranged in the drill pipe 1. The fixing mechanism includes a plurality of fixing plates 2 arranged in the drill pipe 1. The fixing mechanism is used to stop the rotation of the drill pipe 1 and start the collection work when the drill pipe 1 reaches the specified depth. Discharge mechanism, the discharge mechanism is arranged in the drill pipe 1. The discharge mechanism includes two discharge chutes 3 arranged in the drill pipe 1. The discharge mechanism is used to discharge the collected core samples after the sampling is completed and the drill pipe 1 is reset.

[0022] As Figure 2 shown, the sampling mechanism includes a rotating plate 102 rotatably installed at the top of the drill pipe 1. A driving motor 103 is fixedly installed at the top of the rotating plate 102. A rotating shaft 104 is fixedly installed on the output shaft of the driving motor 103. The bottom end of the rotating shaft 104 extends rotatably into the drill pipe 1. A support plate 105 is rotatably installed in the drill pipe 1. The rotating shaft 104 rotates through the support plate 105.

[0023] Transfer the power to the rotating plate 102, so that the drill barrel 1 moves downward accordingly. At the same time, the driving motor 103 drives the rotating shaft 104 to rotate counterclockwise, and the rotating shaft drives the L-shaped hollow plate 201 to rotate synchronously.

[0024] As Figure 2 and Figure 4 shown, a circular plate 106 is slidably sleeved on the rotating shaft 104. A plurality of L-shaped circular rods 107 are fixedly installed on the top of the circular plate 106. A plurality of limiting grooves 108 are formed on the inner wall of the drill barrel 1. Limiting springs 109 are fixedly installed on the top inner walls of the plurality of limiting grooves 108 respectively.

[0025] The circular plate 106 drives the L-shaped circular rods 107 to rise, and the L-shaped circular rods 107 drive a plurality of closing blocks 110 to rise. At this time, the limiting springs 109 undergo compressive deformation.

[0026] As Figure 4 shown, a plurality of closing blocks 110 are fixedly installed at the bottom ends of the plurality of limiting springs 109 respectively. The mutually remote ends of the plurality of L-shaped circular rods 107 are fixedly connected to the plurality of closing blocks 110 respectively. A plurality of feeding inclined grooves 111 are formed on the inner wall of the drill barrel 1. The bottom ends of the plurality of closing blocks 110 respectively slide and extend into the feeding inclined grooves 111 and are respectively in contact with the bottom inner walls of the plurality of feeding inclined grooves 111.

[0027] Since the drill barrel 1 rotates and descends underground, the core near the feeding inclined groove 111 will be drilled and crushed. After the feeding inclined groove 111 is opened, the core fragments will enter the collection annular cylinder 306 along the feeding inclined groove 111 for collection and sampling.

[0028] As Figure 5 shown, the fixing mechanism includes a plurality of fixing plates 2 fixedly installed on the bottom inner wall of the drill barrel 1. A plurality of L-shaped hollow plates 201 are fixedly installed on the rotating shaft 104. A plurality of telescopic springs 202 are fixedly installed on the top inner walls of the plurality of L-shaped hollow plates 201 respectively. A plurality of trapezoidal limiting blocks 203 are fixedly installed at the bottom ends of the plurality of telescopic springs 202 respectively. The bottom ends of the plurality of trapezoidal limiting blocks 203 respectively slide and extend out of the L-shaped hollow plates 201.

[0029] When the trapezoidal limiting block 203 rotates clockwise and contacts the fixing plate 2, the trapezoidal limiting block 203 will rise under its inclined surface. At this time, the telescopic spring 202 undergoes compressive deformation, and the trapezoidal limiting block 203 drives the telescopic circular rod 204 to rise.

[0030] As Figure 5As shown, telescopic round rods 204 are fixedly installed at the tops of several trapezoidal limit blocks 203 respectively. The tops of the several telescopic round rods 204 slide and extend outside several L-shaped hollow plates 201 respectively. An annular plate 205 is fixedly installed at the tops of the several telescopic round rods 204. The top end of the annular plate 205 is in contact with the round plate 106.

[0031] The telescopic round rod 204 drives the annular plate 205 to rise while rotating, and the annular plate 205 drives the round plate 106 to rise.

[0032] As Figure 6 shown, a plurality of rectangular grooves 206 are formed in the outer wall of the drill barrel 1. Fixed springs 207 are fixedly installed on the inner walls of the sides of the plurality of rectangular grooves 206 close to each other respectively. Arc-shaped fixing blocks 208 are fixedly installed at the ends of the plurality of fixed springs 207 away from each other respectively. The ends of the plurality of arc-shaped fixing blocks 208 away from each other slide and extend outside the rectangular grooves 206 respectively.

[0033] Due to the action of the formation outside the drill barrel, the arc-shaped fixing block 208 will contract inward along its arc structure in the rectangular groove 206, causing the fixed spring 207 to be compressed and store elastic potential energy. When the trapezoidal limit block 203 continues to rotate clockwise and contacts the inclined surface of the fixing plate 2, the fixing plate is driven to rotate again, and further transmits torque to the drill barrel 1, causing it to produce a slight short-distance rotational movement. As the drill barrel 1 makes a small-amplitude rotation, the arc-shaped fixing block 208 also rotates together. However, due to the interaction between its outer plane and the surrounding formation, under the push of the fixed spring 207, the arc-shaped fixing block will protrude from the rectangular groove and firmly embed into the formation, forming an effective limiting support. At this time, the drill barrel 1 is basically in a static state due to the jamming action of the arc-shaped fixing block, thus ensuring the stability and accuracy of the device during the subsequent core sampling process.

[0034] As Figure 8 shown, the discharging mechanism includes two discharging grooves 3 formed in the inner wall of the drill barrel 1. Closing plates 301 are slidably installed in the two discharging grooves 3 respectively. The bottom ends of the two closing plates 301 slide and extend into the drill barrel 1 respectively. Two strip-shaped grooves 302 are formed in the drill barrel 1. Circular closing rods 303 are slidably installed in the two strip-shaped grooves 302 respectively. The bottom ends of the two circular closing rods 303 are fixedly connected to the two closing plates 301 respectively. Rectangular limiting plates 304 are fixedly sleeved on the two circular closing rods 303 respectively. Return springs 305 are fixedly installed at the bottom ends of the two rectangular limiting plates 304 respectively. The bottom ends of the two return springs 305 are fixedly connected to the bottom inner walls of the two strip-shaped grooves 302 respectively.

[0035] The descending motion of the circular closing rod 303 is transmitted to the rectangular limiting plate 304, causing it to move downward synchronously and compress the return spring 305. At the same time, the closing plate 301 is driven to move downward, gradually opening the lower discharge chute 3. As the closing plate 301 continues to move downward, the discharge chute 3 is completely opened.

[0036] As Figure 2 and Figure 8 shown, a collecting annular cylinder 306 is fixedly installed on the inner wall of the drill cylinder 1. Two discharge ports 307 are formed on the outer wall of the collecting annular cylinder 306. The two discharge ports 307 communicate with the two discharge chutes 3 respectively. The tops of the two circular closing rods 303 slide and extend outside the drill cylinder 1. A movable mounting frame 308 is arranged below the drill cylinder 1, and a strip-shaped hollow box 309 is fixedly installed on the top of the movable mounting frame 308.

[0037] The core samples originally collected in the collecting annular cylinder 306 enter the discharge chute 3 along the discharge ports 307 under the action of gravity and are finally discharged smoothly, realizing the automatic discharging function after core sampling without manual intervention. This not only effectively saves labor costs but also significantly improves the overall efficiency and automation level of the sampling operation.

[0038] As Figure 2 and Figure 3 shown, a multi-stage hydraulic cylinder 310 is fixedly installed on the top inner wall of the strip-shaped hollow box 309. The output end of the multi-stage hydraulic cylinder 310 is fixedly installed with a special-shaped connecting plate 311. The front of the special-shaped connecting plate 311 slides and extends outside the strip-shaped hollow box 309 and is fixedly connected to the rotating plate 102. Two limiting strip-shaped plates 312 are fixedly installed on the front of the strip-shaped hollow box 309. The tops of the two circular closing rods 303 are fixedly installed with an annular limiting plate 313.

[0039] Under the blocking and limiting action of the limiting strip-shaped plates 312, the annular limiting plate 313 starts to move downward relative to the drill cylinder, thereby driving the circular closing rod 303 to reset downward.

[0040] During use, first start the multi-stage hydraulic cylinder 310 and the drive motor 103. The multi-stage hydraulic cylinder 310 drives the special-shaped connecting plate 311 to move downward, transmitting power to the rotating plate 102, and then causing the drill barrel 1 to move downward accordingly. At the same time, the drive motor 103 drives the rotating shaft 104 to rotate counterclockwise. The rotating shaft drives the L-shaped hollow plate 201 to rotate synchronously, and the L-shaped hollow plate drives the trapezoidal limit block 203 to rotate together. When the flat part of the trapezoidal limit block contacts the fixed plate 2, frictional force is generated between the two and they are engaged. At this time, when the trapezoidal limit block 203 continues to rotate, it will drive the fixed plate 2 to rotate synchronously, thus realizing the synchronous rotation function of the drill barrel 1 during the descending process and effectively completing the drilling operation. When the drill barrel 1 reaches the predetermined depth, the drive motor 103 changes the rotation direction, driving the rotating shaft 104 to rotate clockwise, and then causing the L-shaped hollow plate 201 and the trapezoidal limit block 203 to rotate accordingly. During this process, due to the action of the formation outside the drill barrel, the arc-shaped fixed block 208 will contract inward along its arc-shaped structure in the rectangular groove 206, compressing the fixed spring 207 and storing elastic potential energy. When the trapezoidal limit block 203 continues to rotate clockwise and contacts the inclined surface of the fixed plate 2, the fixed plate is driven to rotate again, and further transmits torque to the drill barrel 1, causing it to produce a slight short-distance rotational movement. As the drill barrel 1 rotates slightly, the arc-shaped fixed block 208 also rotates together. However, due to the interaction between its outer plane and the surrounding formation, under the push of the fixed spring 207, the arc-shaped fixed block will protrude from the rectangular groove and firmly embed into the formation; When the trapezoidal limit block 203 rotates clockwise and contacts the fixed plate 2, the trapezoidal limit block 203 will rise under its inclined surface. At this time, the telescopic spring 202 undergoes compressive deformation. The trapezoidal limit block 203 drives the telescopic round rod 204 to rise, and the telescopic round rod 204 drives the annular plate 205 to rise while rotating. The annular plate 205 drives the round plate 106 to rise, the round plate 106 drives the L-shaped round rod 107 to rise, and the L-shaped round rod 107 drives several closing blocks 110 to rise. At this time, the limit spring 109 undergoes compressive deformation, and the corresponding feed chute 111 will open. Since the drill barrel 1 rotates and descends underground, the core near the corresponding feed chute 111 will be drilled and crushed. After the feed chute 111 opens, the core fragments will enter the collection annular cylinder 306 along the feed chute 111 for collection and sampling. During the process of the trapezoidal limit block 203 continuously hitting the fixed plate 2, the slight vibration of the drill barrel 1 will accelerate the entry of the core fragments near the feed chute 111 into the collection annular cylinder 306, thereby improving the efficiency of core sampling. Since the trapezoidal limit block 203 rotates continuously, the height of the annular plate 205 will basically not change at this time, so the feed chute 111 will always be in an open state; After the core collection is completed, the drive motor 103 is rotated counterclockwise again. The trapezoidal limit block 203 rotates accordingly and recontacts the flat part of the fixed plate 2 during its movement, thereby driving the fixed plate to continue rotating. At this time, the fixed plate 2 transmits the rotational power to the drill barrel 1, causing it to rotate counterclockwise as a whole. Meanwhile, under the action of continuous contact between the outer arc surface of the arc-shaped fixed block 208 and the surrounding rock formation, it rotates together with the drill barrel and gradually disengages from the state of being originally stuck in the formation, realizing the automatic unlocking function. During this process, the trapezoidal limit block 203 is reset downward under the elastic restoring force of the telescopic spring 202, and at the same time drives the entire linkage mechanism to gradually return to the initial state; the closing block 110 also moves back synchronously under the push of the limit spring 109, causing the originally open feed chute 111 to close accordingly. This action precisely controls the opening and closing timing of the feed channel, ensuring the smooth entry of the core into the collection annular cylinder 306 while effectively preventing soil, rock debris, or other impurities at different depths from falling into the collection cavity through the feed chute during the lifting process of the drill barrel 1; During the upward movement of the drill barrel 1, the circular closing rod 303 connected to its top rises synchronously, driving the annular limit plate 313 to move upward together. When the annular limit plate 313 rises to contact the limit strip plate 312, the drill barrel 1 has basically exited the underground environment. At this time, under the blocking and limiting action of the limit strip plate 312, the annular limit plate 313 starts to move downward relative to the drill barrel, thereby driving the circular closing rod 303 to reset downward. The downward movement of the circular closing rod 303 is transmitted to the rectangular limit plate 304, causing it to move downward synchronously and compress the reset spring 305, while driving the closing plate 301 to move downward, gradually opening the lower discharge chute 3. As the closing plate 301 continues to move downward, the discharge chute 3 is completely opened. The core sample originally collected in the collection annular cylinder 306 enters the discharge chute 3 along the discharge port 307 under the action of gravity and is finally discharged smoothly, realizing the automatic discharging function after core sampling.

[0041] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A geological exploration sampling device for mineral mining, comprising a drill barrel (1), characterized in that, It further includes: A sampling mechanism, which is arranged inside the drill cylinder (1). The sampling mechanism includes a rotating plate (102) arranged at the top of the drill cylinder (1). The sampling mechanism is used to sample the core at the corresponding position when the device drills to a specified depth. A fixing mechanism, which is arranged inside the drill cylinder (1). The fixing mechanism includes several fixing plates (2) arranged inside the drill cylinder (1). The fixing mechanism is used to stop the rotation of the drill cylinder (1) and start the collection work when the drill cylinder (1) reaches a specified depth. A discharging mechanism, which is arranged inside the drill cylinder (1). The discharging mechanism includes two discharging grooves (3) arranged inside the drill cylinder (1). The discharging mechanism is used to discharge the collected core sample after sampling and when the drill cylinder (1) resets.

2. The geological exploration sampling device for mineral mining according to claim 1, wherein: The sampling mechanism includes a rotating plate (102) rotatably installed at the top of the drill cylinder (1). A driving motor (103) is fixedly installed at the top of the rotating plate (102). A rotating shaft (104) is fixedly installed on the output shaft of the driving motor (103). The bottom end of the rotating shaft (104) rotatably extends into the drill cylinder (1). A support plate (105) is rotatably installed inside the drill cylinder (1), and the rotating shaft (104) rotatably penetrates through the support plate (105).

3. The geological exploration sampling device for mineral mining according to claim 2, wherein: A circular plate (106) is slidably sleeved on the rotating shaft (104). Several L-shaped circular rods (107) are fixedly installed at the top of the circular plate (106). Several limiting grooves (108) are formed on the inner wall of the drill cylinder (1), and limiting springs (109) are respectively fixedly installed on the top inner walls of several of the limiting grooves (108).

4. The geological exploration sampling device for mineral mining according to claim 3, wherein: The bottom ends of several of the limiting springs (109) are respectively fixedly installed with closing blocks (110). The mutually remote ends of several of the L-shaped circular rods (107) are respectively fixedly connected with several of the closing blocks (110). Several feeding inclined grooves (111) are formed on the inner wall of the drill cylinder (1), and the bottom ends of several of the closing blocks (110) respectively slidably extend into the feeding inclined grooves (111) and are respectively in contact with the bottom inner walls of several of the feeding inclined grooves (111).

5. A geological exploration sampling device for mineral mining according to claim 3, characterized in that: The fixing mechanism includes several fixing plates (2) fixedly installed on the bottom inner wall of the drill cylinder (1). Several L-shaped hollow plates (201) are fixedly installed on the rotating shaft (104). Telescopic springs (202) are respectively fixedly installed on the top inner walls of several of the L-shaped hollow plates (201). Trapezoidal limiting blocks (203) are respectively fixedly installed at the bottom ends of several of the telescopic springs (202), and the bottom ends of several of the trapezoidal limiting blocks (203) respectively slidably extend out of the L-shaped hollow plates (201).

6. The geological exploration sampling device for mineral mining according to claim 5, characterized in that: Telescopic round rods (204) are respectively fixedly installed at the tops of several of the trapezoidal limiting blocks (203). The top ends of several of the telescopic round rods (204) respectively slidably extend out of several of the L-shaped hollow plates (201). An annular plate (205) is fixedly installed at the tops of several of the telescopic round rods (204), and the top end of the annular plate (205) is in contact with the circular plate (106).

7. A geological exploration sampling device for mineral mining according to claim 1, characterized in that: A plurality of rectangular grooves (206) are formed in the outer wall of the drill tube (1). Fixed springs (207) are respectively fixedly installed on the inner walls of the adjacent sides of the plurality of rectangular grooves (206). Arc-shaped fixing blocks (208) are respectively fixedly installed at the ends of the plurality of fixed springs (207) away from each other. The ends of the plurality of arc-shaped fixing blocks (208) away from each other respectively slide and extend outside the rectangular grooves (206).

8. A geological exploration sampling device for mineral mining according to claim 1, characterized in that: The discharging mechanism includes two discharging grooves (3) formed in the inner wall of the drill tube (1). Closing plates (301) are respectively slidably installed in the two discharging grooves (3). The bottom ends of the two closing plates (301) respectively slide and extend into the drill tube (1). Two strip-shaped grooves (302) are formed in the drill tube (1). Circular closing rods (303) are respectively slidably installed in the two strip-shaped grooves (302). The bottom ends of the two circular closing rods (303) are respectively fixedly connected to the two closing plates (301). Rectangular limiting plates (304) are respectively fixedly sleeved on the two circular closing rods (303). Return springs (305) are respectively fixedly installed at the bottom ends of the two rectangular limiting plates (304). The bottom ends of the two return springs (305) are respectively fixedly connected to the bottom inner walls of the two strip-shaped grooves (302).

9. The geological exploration sampling device for mineral mining according to claim 8, characterized in that: A collecting annular cylinder (306) is fixedly installed on the inner wall of the drill tube (1). Two discharging ports (307) are formed in the outer wall of the collecting annular cylinder (306). The two discharging ports (307) are respectively communicated with the two discharging grooves (3). The top ends of the two circular closing rods (303) respectively slide and extend outside the drill tube (1). A moving mounting frame (308) is arranged below the drill tube (1). A strip-shaped hollow box (309) is fixedly installed on the top of the moving mounting frame (308).

10. The geological exploration sampling device for mineral mining according to claim 9, characterized in that: A multi-stage hydraulic cylinder (310) is fixedly installed on the top inner wall of the strip-shaped hollow box (309). An output end of the multi-stage hydraulic cylinder (310) is fixedly installed with a special-shaped connecting plate (311). The front surface of the special-shaped connecting plate (311) slides and extends outside the strip-shaped hollow box (309) and is fixedly connected to a rotating plate (102). Two limiting strip-shaped plates (312) are fixedly installed on the front surface of the strip-shaped hollow box (309). Annular limiting plates (313) are fixedly installed at the top ends of the two circular closing rods (303).

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