A rock and soil exploration sampling device for mining

Abstract

The present invention provides a rock and soil exploration sampling device for mining, which belongs to the field of exploration sampling technology, and includes a drill bit with a sampling port; a layer sampling mechanism is connected to the drill bit, and the layer sampling mechanism includes a material guide head and a sample collection head, and the sample collection head includes a disc seat with a plurality of collection bins installed and a mounting shell detachably connected to the disc seat, and the collection bins are evenly distributed along the circumference of the disc seat and the gaps between adjacent collection bins are distributed, and the gaps between adjacent collection bins and the mounting shell are combined to form a material reduction and pressure reduction zone. The layer sampling mechanism in the rock and soil exploration sampling device for mining takes independent samples of the corresponding soil layer in a non-continuous sampling manner during the drilling process of the drill bit, and the overall structure is stable and reliable, and the entire sample collection process has high stability and reliability, which fully improves the efficiency of sample collection and the accuracy of sampling.

Description

Technical Field

[0001] The invention relates to the technical field of exploration and sampling, in particular to rock and soil exploration and sampling equipment for mining. Background Art

[0002] Geotechnical exploration sampling equipment is a tool used to obtain underground rock and soil samples, which are essential for understanding the characteristics of mineral deposits, geological structure and assessing the feasibility of mining.

[0003] At present, geotechnical exploration sampling equipment is mainly divided into two working modes, one is to drill first and then sample, and the other is to sample while drilling. The former can flexibly and accurately obtain geotechnical samples in the corresponding strata, but it is time-consuming and inefficient, and when encountering unstable strata, there may be problems with hole collapse. The latter is usually continuous sampling. During the drilling process, geotechnical samples are continuously collected as the drill bit drills forward, but it is difficult to remove them subsequently, and it is necessary to select the sample corresponding to the corresponding soil layer again from the entire continuous sample, which not only easily destroys the integrity of the sample but also easily affects the purity of the sample. Summary of the invention

[0004] The present invention provides a rock and soil exploration sampling device for mining, so as to solve the problems in the related art that the sampling efficiency is low and is easily affected by unstable strata, or the sample is difficult to take out and the sample accuracy is easily reduced.

[0005] The invention provides a rock and soil exploration sampling device for mining, which comprises a drill bit with a sampling port; a layer sampling mechanism is connected to the drill bit, the layer sampling mechanism comprises a material guide head and a sample collecting head, the sample collecting head comprises a disc seat on which a plurality of collecting bins are installed and a mounting shell detachably connected to the disc seat, the collecting bins are evenly distributed along the circumference of the disc seat and are distributed in gaps between adjacent collecting bins, the gaps between adjacent collecting bins and the mounting shell are combined to form a material reduction and pressure reduction zone, the material guide head comprises a rotating head with a material guide channel and a base rotatably connected to the rotating head, one port of the material guide channel is connected to the sampling port, and the other port is connected to any one of the collecting bins, the rotating head is intermittently rotated to make the corresponding ports of the material guide channel connected to the circumferentially distributed collecting bins in turn, the port of the material guide channel connected to the sampling port is always in a state of being connected to the sampling port, and in the process of the material guide channel rotating and switching to connect to the collecting bins with the rotating head, when the corresponding port passes through the material reduction and pressure reduction zone between the corresponding collecting bins, the sample retained in the material guide channel will enter the material reduction and pressure reduction zone.

[0006] In one possible implementation, the collecting bin is a strip-shaped cavity with an opening at one end, and the opening of the collecting bin is connected to the corresponding port of the material guide channel. The disc base includes a column with a plurality of mounting support channels opened therethrough and a unified pick-and-place body detachably connected to the column. The support channels correspond to the collecting bins one by one, and the collecting bins are all installed on the unified pick-and-place body and the collecting bins are inserted through the corresponding support channels.

[0007] In one possible implementation, the collecting bin includes a main cavity with a material taking port and a cover body slidably connected to the main cavity to close the material taking port, and limit strips are fixedly installed on the cover body and the main cavity, and a plurality of installation grooves and a plurality of limit strips 1 are provided on the unified taking and placing body, and the installation grooves correspond one-to-one with the collecting bins, and the limit strips 1 correspond one-to-one with the limit strips, and the base and the installation shell are provided with limit strips 2, and the limit strips 2 correspond one-to-one with the limit strips.

[0008] In one possible implementation, the rotating head is rotatably mounted on the disc base through a base and is located in a mounting shell. The rotating head includes a conical end and a cylindrical body. The material guide channel extends from the top of the conical end along the conical surface and the side of the cylindrical body to the bottom edge of the cylindrical body. The material guide channel is a groove-shaped structure, and the side notch of the material guide channel is always close to the inner wall of the mounting shell.

[0009] In a possible implementation, a side of the collecting bin close to the mounting shell is in contact with an inner wall of the mounting shell, and a side of the collecting bin close to the base is in contact with an outer wall of the base.

[0010] In one possible implementation, the unified picking and placing body is integrated with the collection bin to form assembly unit one, and the base, rotating head and main body are integrated to form assembly unit two. During the assembly process, assembly unit one and assembly unit two are first assembled together and then assembled with the shell.

[0011] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. According to a rock and soil exploration sampling equipment for mining provided by an embodiment of the present invention, the layer sampling mechanism takes independent samples of the corresponding soil layer in a non-continuous sampling manner during the drilling process of the drill bit, and the overall structure is stable and reliable. The entire sample collection process has high stability and reliability, which fully improves the efficiency and accuracy of sample collection.

[0012] 2. According to an embodiment of the present invention, a rock and soil exploration sampling equipment for mining is provided, and a material reduction and pressure reduction zone is set between adjacent collecting bins. On the one hand, it can temporarily reduce the pressure on the rotating head to a certain extent, and improve the stability and reliability of the rotating head rotation switching process. On the other hand, it can effectively separate the rock and soil in the previous soil layer to prevent the rock and soil from entering the collecting bin of the next soil layer, thereby improving the purity of the samples in the collecting bin, and effectively improving the stability, reliability and accuracy of the sampling process as a whole.

[0013] 3. According to a rock and soil exploration sampling equipment for mining provided by an embodiment of the present invention, assembly unit 1 and assembly unit 2 can conveniently complete assembly and disassembly work, and the overall structure is simple, stable, and convenient for taking out samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic structural diagram of a drill bit and a layer sampling mechanism of a rock and soil exploration sampling device for mining provided by an embodiment of the present invention.

[0015] Figure 2 The present invention is a schematic cross-sectional structural diagram of an installation shell of a rock and soil exploration sampling device for mining provided by an embodiment of the present invention.

[0016] Figure 3 It is an exploded diagram of a drill bit and a layer sampling structure of a rock and soil exploration sampling device for mining provided by an embodiment of the present invention.

[0017] Figure 4 It is a structural schematic diagram of a main cavity, a cover body and a limit bar of a rock and soil exploration sampling device for mining provided by an embodiment of the present invention.

[0018] Figure 5 The present invention is a schematic diagram of a cross-sectional structure of a rock and soil exploration sampling device for mining after being assembled with a drill rod, provided by an embodiment of the present invention.

[0019] In the figure: 1. sampling port; 2. drill bit; 3. fixed layer sampling mechanism; 31. material guide head; 311. material guide channel; 312. rotating head; 3121. tapered end; 3122. cylindrical body; 313. base; 32. sample collecting head; 321. collecting bin; 3211. material taking port; 3212. main cavity; 3213. cover body; 3214. limiting strip; 3215. mounting groove; 3216. limiting groove 1; 3217. limiting groove 2; 322. disc seat; 3221. supporting channel; 3222. column; 3223. unified taking and placing body; 323. mounting shell; 4. drill rod. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0021] See also Figure 1 A rock and soil exploration sampling device for mining includes a drill bit 2 with a sampling port 1, a layer sampling mechanism 3 is connected to the drill bit 2, and the drill bit 2 is installed on a drill rod 4. During the sampling drilling process, part of the rock and soil enters the layer sampling mechanism 3 through the sampling port 1, realizing an efficient sampling function of collecting samples while drilling. During the sampling process, the layer sampling mechanism 3 collects rock and soil samples of the corresponding stratum in an intermittent sampling manner, and after collection, it is easy to quickly and completely remove the samples, which effectively improves the efficiency of sample collection and the accuracy of collected samples.

[0022] See also Figure 1 , Figure 2 , Figure 3 and Figure 5The fixed layer sampling mechanism 3 includes a material guide head 31 and a sample collecting head 32. The sample collecting head 32 includes a disc seat 322 on which a plurality of collecting bins 321 are detachably mounted and a mounting shell 323 detachably connected to the disc seat 322. The mounting shell 323 is detachably fixedly connected to the drill bit 2. Specifically, a bolt connection method or other connection methods can be adopted. The collecting bins 321 are evenly distributed along the circumference of the disc seat 322 and adjacent collecting bins 321 are distributed in gaps. The material guide head 31 includes a rotating head 312 with a material guide channel 311. and a base 313 rotatably connected to the rotating head 312, the base 313 is fixedly mounted on the disc base 322 and the base 313 is located in the middle of the circumferentially distributed collecting bins 321, the gaps between adjacent collecting bins 321 and the mounting shell 323 and the base 313 form a material reduction and pressure reduction zone, one end of the material guide channel 311 is connected to the sampling port 1, and it is planned to set the port as the lower port, and the other end is connected to any one of the collecting bins 321, and it is planned to set the port as the upper port. During the sampling process, the rock and soil pass through the sampling port 1, the material guide channel 311 in sequence The drill bit 2 enters the corresponding collecting chamber 321 to complete the collection of a single sample. Then, as the drill bit 2 drills and reaches the next soil layer and needs to collect samples, the rotating head 312 is rotated. Here, a driving member is installed on the base 313 to control the rotation of the rotating head 312, so that the upper port of the guide channel 311 is docked with the next collecting chamber 321. Then, as the drill bit 2 drills, the rock and soil enter the corresponding collecting chamber 321 along the aforementioned path to complete the collection of independent samples of the corresponding layer. When the drill bit 2 rotates to switch the collecting chamber 321, the upper port will pass through the corresponding material reduction and pressure zone. During this process, the rock and soil of the previous soil layer retained in the guide channel 311 will automatically enter the material reduction and pressure reduction zone. On the one hand, the pressure on the rotating head 312 can be temporarily reduced to a certain extent, and the stability and reliability of the rotation and switching process of the rotating head 312 can be improved. On the other hand, the rock and soil in the previous soil layer can be effectively separated to prevent the rock and soil from entering the collection chamber 321 of the next soil layer and reducing the accuracy of sample collection, thereby effectively improving the purity of the sample in the collection chamber 321.

[0023] See also Figure 2 , Figure 3 and Figure 5 The collecting bin 321 is a strip-shaped cavity with an opening at one end, and the opening of the collecting bin 321 is connected to the corresponding port of the material guide channel 311. The disc seat 322 includes a column 3222 with a plurality of mounting support channels 3221 and a unified access body 3223 detachably connected to the column 3222. The base 313 is fixedly mounted on the column 3222. The support channels 3221 correspond to the collecting bins 321 one by one. The collecting bins 321 are all mounted on the unified access body 3223 and the collecting bins 321 are inserted through the corresponding support channels 3221. Figure 3As shown, the collecting bin 321 can be detachably mounted on the unified taking and placing body 3223 and the two constitute an assembly unit 1 which is convenient for taking out samples and assembling. The rotating head 312, the base 313 and the column 3222 constitute an assembly unit 2. During the assembly process, the supporting channel 3221 on the column 3222 is aligned with the corresponding collecting bin 321, and then the column 3222 is moved until the column 3222 is fixedly buckled with the unified taking and placing body 3223, and then assembled and connected with the mounting shell 323. The whole structure is convenient for assembly and disassembly, and convenient for taking out samples, and the overall structure has high stability and reliability.

[0024] See also Figure 2 , Figure 3 and Figure 4 The collecting bin 321 includes a main cavity 3212 with a material taking port 3211 on the side and a cover 3213 slidably connected to the main cavity 3212 to close the material taking port 3211. Figure 4 As shown, during the sampling process, the sliding cover 3213 opens the material taking port 3211 to facilitate taking out the sample, thereby effectively improving the convenience of sampling.

[0025] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 The cover 3213 and the main cavity 3212 are fixedly installed with a limit strip 3214, and the unified take-and-place body 3223 is provided with a plurality of installation grooves 3215 and a plurality of limit slots 1 3216, the installation grooves 3215 correspond to the collection bin 321 one by one, the limit slots 1 3216 correspond to the limit strip 3214 one by one, and the base 313 and the installation shell 323 are provided with a limit slot 2 3217, and the limit slot 2 3217 corresponds to the limit strip 3214 one by one, Figure 3 and Figure 5 As shown, one end of the opening of the collecting bin 321 passes through the corresponding supporting channel 3221 to the position of the upper port of the material guiding channel 311, and the other end is installed in the corresponding mounting groove 3215, and the limiting groove 3216 on the unified taking and placing body 3223 limits the limiting strip 3214 from one end, and the base 313 and the mounting shell 323 limit the limiting strip 3214 from the other end, on the one hand, the collecting bin 321 is in a stable installation state, and on the other hand, the cover body 3213 and the main cavity 3212 are firmly connected together and no locking structure is required between the cover body 3213 and the main cavity 3212, which effectively simplifies the overall structure and improves the stability and reliability of the overall structure, wherein the side of the collecting bin 321 close to the mounting shell 323 fits with the inner wall of the mounting shell 323, and the side of the collecting bin 321 close to the base 313 fits with the outer wall of the base 313, which further improves the stability and reliability of the position state of the collecting bin 321 during the sampling process.

[0026] See also Figure 1 , Figure 2 and Figure 4 The rotating head 312 includes a conical end portion 3121 and a cylindrical body portion 3122. The material guide channel 311 extends from the top of the conical end portion 3121 along the conical surface and the side of the cylindrical body portion 3122 to the bottom edge of the cylindrical body portion 3122. The material guide channel 311 is a groove-shaped structure, and the side notch of the material guide channel 311 is always close to the inner wall of the mounting shell 323. Figure 5 As shown, the inner side wall of the mounting shell 323 cooperates with the material guiding channel 311 to form a complete material guiding area, which further simplifies the overall structure and improves the stability and reliability of the overall structure.

[0027] After the various parts of the layer sampling mechanism 3 are assembled, the installation shell 323 is connected to the drill bit 2, and the drill bit 2 is installed on the end of the hollow drill rod 4 by threaded connection, so that the layer sampling mechanism 3 is located inside the hollow drill rod 4. During specific operation: the drill rod 4 and the drill bit 2 are driven downward by the existing driving source. During the drilling process, the rock and soil pass through the sampling port 1 and the guide channel 311 in turn to enter the corresponding collection bin 321 to complete the collection of a single sample. Then, as the drill bit 2 drills to the next soil layer and needs to collect samples, the installation The driving member on the base 313 rotates the rotating head 312 to make the upper end of the material guide channel 311 dock with the next collecting bin 321. Then, as the drill bit 2 drills, the rock and soil enter the corresponding collecting bin 321 along the aforementioned path to complete the collection of independent samples of the corresponding layer, and when switching the collecting bin 321, the upper end will pass through the corresponding material reduction and pressure zone. During this process, the rock and soil of the previous soil layer retained in the material guide channel 311 will automatically enter the material reduction and pressure reduction zone, thereby preventing the rock and soil from entering the collection bin 321 of the next soil layer and reducing the accuracy of sample collection.

[0028] When the collecting chamber 321 is filled with samples, the drill rod 4 is driven to reset upward, and then the drill bit 2 together with the layer sampling mechanism 3 is removed from the inside of the drill rod 4, and then the collecting chamber 321 is disassembled to take out the corresponding samples.

[0029] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rock and soil exploration sampling device for mining, characterized in that: It comprises a drill bit (2) with a sampling port (1); a layer-fixed sampling mechanism (3) is connected to the drill bit (2), and the layer-fixed sampling mechanism (3) comprises a material guide head (31) and a sample collection head (32); The sample collection head (32) comprises a disc seat (322) on which a plurality of collection bins (321) are installed, and a mounting shell (323) detachably connected to the disc seat (322); the collection bins (321) are evenly distributed along the circumference of the disc seat (322) and adjacent collection bins (321) are distributed with gaps; the gaps between adjacent collection bins (321) and the mounting shell (323) form a material reduction and pressure reduction zone; The material guiding head (31) comprises a rotating head (312) provided with a material guiding channel (311) and a base (313) rotatably connected to the rotating head (312); one end of the material guiding channel (311) is connected to the sampling port (1), and the other end is connected to any one of the collecting bins (321); The rotating head (312) is rotated intermittently so that the corresponding ports of the material guiding channel (311) are connected with the circumferentially distributed collecting bins (321) in sequence, and the port of the material guiding channel (311) connected with the sampling port (1) is always in a state of being connected with the sampling port (1). In addition, when the corresponding port of the material guiding channel (311) passes through the material reduction and pressure reduction zone between the corresponding collecting bins (321) as the rotating head (312) rotates and switches to connect with the collecting bin (321), the sample retained in the material guiding channel (311) will enter the material reduction and pressure reduction zone.

2. A rock and soil exploration sampling equipment for mining according to claim 1, characterized in that: The collecting bin (321) is a strip-shaped cavity with an opening at one end. The opening of the collecting bin (321) is connected to the corresponding port of the material guide channel (311). The disc seat (322) comprises a column (3222) through which a plurality of mounting support channels (3221) are opened, and a unified taking and placing body (3223) detachably connected to the column (3222). The support channels (3221) correspond to the collecting bins (321) one by one. The collecting bins (321) are all installed on the unified taking and placing body (3223) and the collecting bins (321) are inserted through the corresponding supporting channels (3221).

3. A rock and soil exploration sampling device for mining according to claim 2, characterized in that: The collecting bin (321) comprises a main cavity (3212) provided with a material taking port (3211) and a cover (3213) slidably connected to the main cavity (3212) to close the material taking port (3211); a limiting strip (3214) is fixedly installed on the cover (3213) and the main cavity (3212); a plurality of mounting grooves (3215) and a plurality of limiting grooves 1 (3216) are provided on the unified taking and placing body (3223); the mounting grooves (3215) correspond one-to-one with the collecting bin (321); the limiting grooves 1 (3216) correspond one-to-one with the limiting strip (3214); and a limiting groove 2 (3217) is provided on the base (313) and the mounting shell (323); the limiting grooves 2 (3217) correspond one-to-one with the limiting strip (3214).

4. The rock and soil exploration sampling equipment for mining according to claim 1, characterized in that: The rotating head (312) is rotatably mounted on the disc seat (322) via the base (313), and the rotating head (312) is located in the mounting shell (323). The rotating head (312) comprises a conical end (3121) and a cylindrical body (3122). The material guide channel (311) extends from the top of the conical end (3121) along the conical surface and the side of the cylindrical body (3122) to the bottom edge of the cylindrical body (3122). The material guide channel (311) is a groove-shaped structure, and the side notch of the material guide channel (311) is always in close contact with the inner wall of the mounting shell (323).

5. The rock and soil exploration sampling equipment for mining according to claim 1, characterized in that: The side of the collecting bin (321) close to the mounting shell (323) fits in contact with the inner wall of the mounting shell (323), and the side of the collecting bin (321) close to the base (313) fits in contact with the outer wall of the base (313).

6. The rock and soil exploration sampling equipment for mining according to claim 3, characterized in that: The unified taking and placing body (3223) and the collecting bin (321) are integrated together to form an assembly unit 1, and the base (313), the rotating head (312) and the main body (3222) are integrated together to form an assembly unit 2. During the assembly process, the assembly unit 1 and the assembly unit 2 are first assembled together and then assembled and connected with the installation shell (323).

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