A geological sampling device for mine exploitation

Abstract

The present invention relates to the technical field of geological sampling, and specifically relates to a geological sampling device for mine exploitation, which mainly includes a bottom frame. A fixing plate is fixedly installed on the top surface of the bottom frame. A drilling rig is arranged above the fixing plate. A connecting pipe is fixedly installed at the lower end of the drilling rig. A core tube is threadedly connected to the lower end of the connecting pipe. The device further includes: an anti-disengagement mechanism, which is arranged inside the core tube; and a fixing mechanism, which is arranged below the connecting pipe. When the connecting pipe is connected to the core tube, the connecting pipe squeezes the round frame to drive the connecting bar and the first cylinder to move to the bottommost part of the second groove body. The first elastic member applies an elastic force to the moving frame, and the moving frame pushes the inclined teeth to extrude the soil inside the core tube. Due to the inclined angle of the inclined teeth being an upward-inclined angle, the sampled soil can enter the core tube upward. The inclined teeth extrude the outer wall of the soil, so that the sampled soil is not easily dropped from the core tube, thereby ensuring the integrity of the soil and the detection accuracy of the soil at different soil layer depths subsequently.

Description

Technical Field

[0001] The present invention relates to the technical field of geological sampling, and particularly to a geological sampling device for mine exploitation. Background Technique

[0002] Mine exploitation refers to the process of extracting underground mineral deposits. Mine exploitation generally includes stages such as exploration, mining, ore extraction, and ore processing. During the process of mine exploitation, geological exploration and sampling are required to determine the location, scale, and grade of the mineral deposits, and then select appropriate mining methods and equipment for exploitation.

[0003] When a geological sampling device for mine exploitation samples the mine geology, it is necessary to drill into the mine through a drill bit, store the drilled rock geology through a core tube, take out the core tube and the soil sample inside for detection. However, after the existing device samples the soil at different soil layer depths, the soil in the core tube is likely to fall off, thus destroying the integrity of the soil and affecting the subsequent detection of the soil at different soil layer depths. Summary of the Invention

[0004] The purpose of the present invention is to provide a geological sampling device for mine exploitation to solve the problem that the soil in the core tube is likely to fall off as proposed in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A geological sampling device for mine exploitation includes: a bottom frame, a fixing plate is fixedly installed on the top surface of the bottom frame, a drill is arranged above the fixing plate, a connecting pipe is fixedly installed at the lower end of the drill, the lower end of the connecting pipe is threadedly connected with a core tube, and the lower end of the core tube is threadedly connected with a drill bit. It also includes:

[0007] An anti - detachment mechanism, the anti - detachment mechanism is arranged inside the core tube. The anti - detachment mechanism includes a moving frame located inside the core tube, and an inclined tooth is fixedly installed on the side surface of the moving frame. The anti - detachment mechanism is used to prevent the sampled rock from slipping.

[0008] A fixing mechanism, the fixing mechanism is arranged below the connecting pipe. The fixing mechanism includes a fixing shell fixedly installed on the top surface of the core tube, and support plates are arranged on both sides of the fixing shell. The fixing mechanism is used to fix the connecting pipe and the core tube.

[0009] Preferably, a fixing column is fixedly installed on the top surface of the fixing plate, a fixing frame is movably installed on the outer wall of the fixing column, and the side surface of the fixing frame is fixedly connected with the side surface of the drill.

[0010] Preferably, three first grooves are formed in the inner wall of the core barrel, three moving frames are provided, the outer walls of the three moving frames are respectively slidably connected to the inner walls of the three first grooves, a plurality of helical teeth are provided, elastic members I are respectively fixedly installed on the sides of the three moving frames, and the other ends of the plurality of elastic members I are respectively fixedly connected to the inner walls of the three first grooves.

[0011] Preferably, second grooves are respectively formed in the inner walls on both sides of the three moving frames, the plurality of second grooves are shaped irregularly, the upper parts of the second grooves are arranged obliquely, the lower parts of the second grooves are in the same direction as the elastic telescopic direction of the elastic members I, connecting bars are respectively slidably installed in the inner walls of the three moving frames, first cylinders are respectively fixedly installed on both sides of the three connecting bars, and the outer walls of the other ends of the plurality of first cylinders are respectively slidably connected to the inner walls of the plurality of second grooves.

[0012] Preferably, a fixing groove is formed in the top surface of the core barrel, the upper ends of the three connecting bars respectively slide through the inner walls of the upper ends of the three first grooves and extend into the fixing groove, circular frames are fixedly installed at the upper ends of the three connecting bars, the sides of the circular frames are slidably connected to the inner walls of the fixing groove, and the top surface of the circular frame contacts the bottom surface of the connecting pipe.

[0013] Preferably, three third grooves are formed in the inner wall of the fixing groove, L-shaped bars are respectively slidably installed in the inner walls of the three third grooves, the upper ends of the three L-shaped bars are fixedly connected to the bottom surface of the circular frame, sliding rods are respectively slidably installed through the top surfaces of the three L-shaped bars, both ends of the three sliding rods are respectively fixedly connected to the inner walls of the three third grooves, elastic members II are respectively slidably installed on the outer walls of the three sliding rods, and both ends of the three elastic members II are respectively fixedly connected to the bottom surfaces of the three L-shaped bars and the lower inner walls of the three third grooves.

[0014] Preferably, three fixing shells are provided, three fourth grooves are formed in the inner wall of the fixing groove, wedge-shaped shells are respectively slidably installed in the inner walls of the three fourth grooves, and the sides of the three wedge-shaped shells are slidably connected to the outer wall of the circular frame.

[0015] Preferably, moving blocks are respectively slidably installed in the inner walls of the three fourth grooves, the inner and outer walls of the three moving blocks are respectively slidably connected to the inner walls of the three wedge-shaped shells, inclined grooves are formed in both sides of the three moving blocks, second cylinders are respectively fixedly installed on both inner walls of the three wedge-shaped shells, and the outer walls of the plurality of second cylinders are respectively slidably connected to the inner walls of the plurality of inclined grooves.

[0016] Preferably, two first connecting rods are hinged to the top surfaces of the three moving blocks, two second connecting rods are respectively hinged to the upper inner walls of the three fixing shells, elastic members III are fixedly installed on the top surfaces of the three moving blocks, and the upper ends of the three elastic members III are respectively fixedly connected to the upper inner walls of the three fixing shells.

[0017] Preferably, placing grooves are respectively formed on both side surfaces of the three fixed shells, through grooves are formed on the side surfaces of the plurality of placing grooves in a penetrating manner, the outer walls of the plurality of first connecting rods and the outer walls of the plurality of second connecting rods are slidably connected, the other ends of the plurality of first connecting rods and the other ends of the plurality of second connecting rods are respectively hinged to the side surfaces of the plurality of supporting plates, a supporting groove is formed on the bottom surface of the connecting pipe, and the side surfaces of the plurality of supporting plates are frictionally connected to the inner wall of the supporting groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: by applying an elastic force to the moving frame through the first elastic member, the moving frame pushes the helical teeth to extrude the sampled rock and soil inside the core tube. Since the angle of the helical teeth is inclined upward, the sampled rock and soil can enter the core tube upward. The helical teeth extrude the outer wall of the rock and soil, making it difficult for the sampled rock and soil to fall out of the core tube, thus ensuring the integrity of the rock and soil and the detection accuracy of the rock and soil at different soil depths subsequently.

[0019] By connecting the connecting pipe to the core tube, when the pressing circular frame is extruded, the circular frame extrudes the wedge-shaped shell to move, the wedge-shaped shell pushes the second cylinder to move, the second cylinder pushes the moving block to move upward through the inclined groove, the moving block pushes the first connecting rod to move upward, and under the combined action with the second connecting rod, it pushes the side surface of the supporting plate to be extruded against the inner wall of the supporting groove, and friction is generated between the side surface of the supporting plate and the inner wall of the supporting groove, which can ensure the firm installation of the connecting pipe and the core tube and avoid loosening caused by rotation. Description of the Drawings

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 It is an exploded view of the disassembled structure below the drill of the present invention;

[0022] Figure 3 It is an exploded three-dimensional structural diagram of the connecting pipe of the present invention;

[0023] Figure 4 It is an exploded three-dimensional structural diagram of the circular frame of the present invention;

[0024] Figure 5 It is a schematic cross-sectional three-dimensional structure diagram of the core tube of the present invention;

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the connecting bar of the present invention;

[0026] Figure 7 It is a schematic cross-sectional three-dimensional structure diagram of the moving frame of the present invention;

[0027] Figure 8 It is a schematic cross-sectional three-dimensional structure diagram of the connecting pipe of the present invention;

[0028] Figure 9 It is of the present invention Figure 8 Enlarged view at A;

[0029] Figure 10 Exploded view of the three-dimensional structure at the moving block of the present invention;

[0030] Figure 11 Schematic diagram of the structure at the fixing mechanism of the present invention.

[0031] In the figure:

[0032] 1. Bottom frame; 101. Fixed plate; 102. Fixed column; 103. Fixed bracket; 104. Drill; 105. Connecting pipe; 106. Core barrel; 107. Drill bit;

[0033] 2. Anti - detachment mechanism; 201. First groove; 202. Moving frame; 203. Helical gear; 204. First elastic member; 205. Second groove; 206. Connecting bar; 207. First cylinder; 208. Circular frame; 209. L - shaped bar; 210. Third groove; 211. Slide bar; 212. Second elastic member; 213. Fixed groove;

[0034] 3. Fixing mechanism; 301. Fourth groove; 302. Wedge - shaped shell; 303. Fixed shell; 304. Moving block; 305. Second cylinder; 306. Inclined groove; 307. Third elastic member; 308. Placing groove; 309. Through groove; 310. First connecting rod; 311. Support plate; 312. Second connecting rod; 313. Support groove. Detailed implementation manners

[0035] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will describe the present application in detail with reference to the drawings and in combination with the embodiments.

[0036] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0037] As Figures 1 - 11 shown, the present application provides a geological sampling device for mine exploitation, including: a bottom frame 1, a fixed plate 101 is fixedly installed on the top surface of the bottom frame 1, a drill 104 is arranged above the fixed plate 101, a connecting pipe 105 is fixedly installed at the lower end of the drill 104, the lower end of the connecting pipe 105 is threadedly connected to a core barrel 106, and the lower end of the core barrel 106 is threadedly connected to a drill bit 107. It further includes:

[0038] The anti - detachment mechanism 2 is arranged inside the core tube 106. The anti - detachment mechanism 2 includes a moving frame 202 located inside the core tube 106. A helical gear 203 is fixedly installed on the side of the moving frame 202. The anti - detachment mechanism 2 is used to prevent the sampled rock from slipping.

[0039] Specifically, as Figures 1 - 8 shown, a fixing column 102 is fixedly installed on the top surface of the fixing plate 101. A fixing frame 103 is movably installed on the outer wall of the fixing column 102. The side of the fixing frame 103 is fixedly connected to the side of the drill 104.

[0040] In this embodiment: By providing the fixing column 102, the fixing frame 103 is supported, thereby supporting the drill 104.

[0041] Specifically, as Figures 1 - 8 shown, three first grooves 201 are formed on the inner wall of the core tube 106. There are three moving frames 202. The outer walls of the three moving frames 202 are respectively slidably connected to the inner walls of the three first grooves 201. There are multiple helical gears 203. Elastic members 204 are respectively fixedly installed on the sides of the three moving frames 202. The other ends of the multiple elastic members 204 are respectively fixedly connected to the inner walls of the three first grooves 201.

[0042] In this embodiment: The moving frame 202 is limited by the provided first grooves 201. The provided helical gears 203 are at an upward - slanting angle. Thus, when the helical gears 203 squeeze the soil sample in the core tube 106, it can prevent the soil sample from falling, and it can ensure that the rock sample can enter the core tube 106 upward.

[0043] Specifically, as Figures 1 - 8 shown, second grooves 205 are respectively formed on the inner walls on both sides of the three moving frames 202. The multiple second grooves 205 are shaped in a special way. The upper part of the second groove 205 is arranged obliquely. The lower part of the second groove 205 is in the same direction as the elastic expansion and contraction direction of the elastic member 204. The lower part of the second groove 205 provides a moving stroke for the moving frame 202, and with the reaction force of the elastic member 204, an upward supporting pressure can be provided to the sampled soil at the helical gear 203, thereby preventing the sampled soil from falling from the sampling position. Connection bars 206 are respectively slidably installed on the inner walls of the three moving frames 202. Cylinders 207 are respectively fixedly installed on both sides of the three connection bars 206. The outer walls of the other ends of the multiple cylinders 207 are respectively slidably connected to the inner walls of the multiple second grooves 205.

[0044] In this embodiment: Through the provided second groove 205, when the connecting bar 206 drives the first cylinder 207 to move to the lowermost end of the second groove 205, the moving frame 202 can move freely. When the connecting bar 206 drives the first cylinder 207 to move upward along the inner wall of the second groove 205, it drives the moving frame 202 to move and squeeze the first elastic member 204. At the same time, the moving frame 202 drives the helical gear 203 to move, and no longer squeezes the rock sample.

[0045] Specifically, as Figures 1 - 8 shown, a fixing groove 213 is formed on the top surface of the core barrel 106. The upper ends of the three connecting bars 206 respectively slide through the inner walls of the upper ends of the three first grooves 201 and extend into the fixing groove 213. Circular frames 208 are fixedly installed at the upper ends of the three connecting bars 206. The side surfaces of the circular frames 208 are slidably connected to the inner walls of the fixing groove 213, and the top surfaces of the circular frames 208 are in contact with the bottom surface of the connecting pipe 105.

[0046] In this embodiment: By means of the provided connecting pipe 105 to squeeze the circular frame 208, the circular frame 208 drives the connecting bar 206 to move, thereby driving the first cylinder 207 to move.

[0047] Specifically, as Figures 1 - 8 shown, three third grooves 210 are formed on the inner wall of the fixing groove 213. L-shaped bars 209 are respectively slidably installed on the inner walls of the three third grooves 210. The upper ends of the three L-shaped bars 209 are fixedly connected to the bottom surface of the circular frame 208. Slide rods 211 are respectively slidably penetrated and installed on the top surfaces of the three L-shaped bars 209. Both ends of the three slide rods 211 are fixedly connected to the inner walls of the three third grooves 210. Second elastic members 212 are respectively slidably installed on the outer walls of the three slide rods 211. Both ends of the three second elastic members 212 are fixedly connected to the bottom surfaces of the three L-shaped bars 209 and the lower inner walls of the three third grooves 210.

[0048] In this embodiment: By means of the provided second elastic member 212 to apply an elastic force to the L-shaped bar 209, and the elastic force of the second elastic member 212 is greater than the elastic force of the first elastic member 204, the L-shaped bar 209 drives the circular frame 208 to move upward, driving the connecting bar 206 to move upward.

[0049] Fixing mechanism 3, the fixing mechanism 3 is arranged below the connecting pipe 105. The fixing mechanism 3 includes a fixing shell 303 fixedly installed on the top surface of the core barrel 106. Support plates 311 are arranged on both sides of the fixing shell 303. The fixing mechanism 3 is used to fix the connecting pipe 105 and the core barrel 106.

[0050] Specifically, as Figures 1 - 11As shown, there are three fixed shells 303. There are three groove bodies four 301 opened on the inner wall of the fixed groove 213. Wedge-shaped shells 302 are respectively and slidably installed on the inner walls of the three groove bodies four 301. The sides of the three wedge-shaped shells 302 are slidably connected to the outer wall of the circular frame 208. An inclined surface is opened at the contact position between the wedge-shaped shell 302 and the circular frame 208 for converting the thrust applied to the wedge-shaped shell 302.

[0051] In this embodiment: through the provided groove body four 301, the wedge-shaped shell 302 is limited, so that the movement of the wedge-shaped shell 302 is more stable. At the same time, the circular frame 208 squeezes and moves the wedge-shaped surface of the wedge-shaped shell 302.

[0052] Specifically, as Figures 1 - 11 shown, moving blocks 304 are respectively and slidably installed on the inner walls of the three groove bodies four 301. The inner and outer walls of the three moving blocks 304 are respectively and slidably connected to the inner walls of the three wedge-shaped shells 302. Oblique grooves 306 are opened on both sides of the three moving blocks 304. Cylinders two 305 are respectively and fixedly installed on the inner walls on both sides of the three wedge-shaped shells 302. The outer walls of the multiple cylinders two 305 are respectively and slidably connected to the inner walls of the multiple oblique grooves 306.

[0053] In this embodiment: through the provided oblique groove 306, when the wedge-shaped shell 302 moves, it drives the cylinder two 305 to move. In cooperation with the oblique groove 306, it drives the moving block 304 to move upward.

[0054] Specifically, as Figures 1 - 11 shown, two connecting rods one 310 are hinged to the top surfaces of the three moving blocks 304. Two connecting rods two 312 are respectively and hinged to the upper inner walls of the three fixed shells 303. Elastic members three 307 are fixedly installed on the top surfaces of the three moving blocks 304. The upper ends of the three elastic members three 307 are respectively and fixedly connected to the upper inner walls of the three fixed shells 303.

[0055] In this embodiment: when the moving block 304 moves upward through the setting, it drives the connecting rod two 312 to move. At the same time, the moving block 304 pushes the elastic member three 307 to be squeezed, and the elastic member three 307 applies an elastic force to the moving block 304.

[0056] Specifically, as Figures 1 - 11 shown, placing grooves 308 are respectively opened on both sides of the three fixed shells 303. Through grooves 309 are opened through the sides of the multiple placing grooves 308. The outer walls of the multiple connecting rods one 310 and the outer walls of the multiple connecting rods two 312 are slidably connected. The other ends of the multiple connecting rods one 310 and the other ends of the multiple connecting rods two 312 are respectively hinged to the sides of the multiple support plates 311. A support groove 313 is opened on the bottom surface of the connecting pipe 105. The sides of the multiple support plates 311 are frictionally connected to the inner wall of the support groove 313.

[0057] In this embodiment: By providing the first connecting rod 310 and the second connecting rod 312, the support plate 311 is driven to be extruded against the inner wall of the support groove 313, generating friction, so that after the connecting pipe 105 and the core pipe 106 are fixed, it is not easy to automatically rotate and become loose, improving the connection quality.

[0058] Specifically, this solution is as follows: Before soil sampling, the connecting pipe 105 and the core pipe 106 are connected. At this time, the core pipe 106 extrudes the circular frame 208 into the fixing groove 213. At this time, the circular frame 208 drives the connecting bar 206 and the first cylinder 207 to move downward, and the first cylinder 207 moves to the bottom of the second groove 205. The first elastic member 204 pushes the moving frame 202 and the helical gear 203 to approach the center of the core pipe 106. At the same time, when the circular frame 208 moves into the fixing groove 213, the circular frame 208 extrudes the wedge-shaped shell 302 to move. The wedge-shaped shell 302 pushes the second cylinder 305 to move. The second cylinder 305 pushes the moving block 304 to move upward through the inclined groove 306. The moving block 304 pushes the first connecting rod 310 to move upward. At the same time, under the combined action with the second connecting rod 312, the side surface of the support plate 311 is pushed to be extruded against the inner wall of the support groove 313. Friction is generated between the side surface of the support plate 311 and the inner wall of the support groove 313, making the connection between the connecting pipe 105 and the core pipe 106 more stable. At this time, the soil is drilled through the drill bit 107. The drilled soil moves upward through the inner wall of the drill bit 107 into the core pipe 106. When the sampled soil moves relatively upward in the core pipe 106, the soil extrudes the helical gear 203, and the helical gear 203 moves into the first groove 201. The helical gear 203 pushes the moving frame 202 to move and extrudes the first elastic member 204. As the soil continues to move upward in the core pipe 106, after the soil sampling is completed, when the core pipe 106 is taken out of the soil, the elastic force exerted by the first elastic member 204 on the moving frame 202 pushes the moving frame 202 and the helical gear 203 to move towards the middle of the core pipe 106. The helical gear 203 supports and extrudes the outer wall of the sampled soil. The sampled soil is supported and extruded by the helical gear 203 and will not fall out of the core pipe 106. When the sampled soil is taken out of the core pipe 106, the connecting pipe 105 and the core pipe 106 are separated. At this time, the second elastic member 212 pushes the L-shaped bar 209 and the circular frame 208 to move upward. The circular frame 208 drives the connecting bar 206 and the first cylinder 207 to move upward. The first cylinder 207 drives the moving frame 202 to move into the first groove 201 through the second groove 205 and extrudes the first elastic member 204. The moving frame 202 drives the helical gear 203 to move into the first groove 201. When the helical gear 203 moves into the first groove 201, the helical gear 203 no longer contacts the outer wall of the sampled soil. The sampled soil is not supported and extruded and falls from the lower end of the core pipe 106 under the action of gravity, thus ensuring that the sampled soil is relatively complete and facilitating subsequent differentiation and detection of soils at different soil layer depths.

[0059] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0060] The present invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, 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 sampling device for mine exploitation, comprising: Bottom frame, on the top surface of the bottom frame, a fixed plate is fixedly installed. Above the fixed plate, a drilling rig is arranged. At the lower end of the drilling rig, a connecting pipe is fixedly installed. At the lower end of the connecting pipe, a core barrel is threadedly connected. At the lower end of the core barrel, a drill bit is threadedly connected. It is characterized in that it further includes: An anti - detachment mechanism, which is arranged inside the core barrel. The anti - detachment mechanism includes a moving frame located inside the core barrel. On the side surface of the moving frame, helical teeth are fixedly installed. On the inner wall of the core barrel, three first grooves are opened. There are three moving frames. The outer walls of the three moving frames are respectively slidably connected with the inner walls of the three first grooves. There are multiple helical teeth. On the side surfaces of the three moving frames, first elastic members are respectively fixedly installed. The other ends of the multiple first elastic members are respectively fixedly connected with the inner walls of the three first grooves. On the inner walls of both sides of the three moving frames, second grooves are respectively opened. The multiple second grooves are shaped irregularly. Inside the three moving frames, connecting bars are respectively slidably installed. On both side surfaces of the three connecting bars, first cylinders are respectively fixedly installed. The outer walls of the other ends of the multiple first cylinders are respectively slidably connected with the inner walls of the multiple second grooves. The anti - detachment mechanism is used to prevent the sampled rock from slipping; A fixing mechanism, which is arranged below the connecting pipe. The fixing mechanism includes a fixed shell fixedly installed on the top surface of the core barrel. On both sides of the fixed shell, support plates are arranged. The fixing mechanism is used to fix the connecting pipe and the core barrel.

2. The geological sampling equipment for mine exploitation according to claim 1, wherein On the top surface of the fixed plate, a fixed column is fixedly installed. On the outer wall of the fixed column, a fixed frame is movably installed. The side surface of the fixed frame is fixedly connected with the side surface of the drilling rig.

3. The geological sampling equipment for mine exploitation according to claim 2, characterized in that, On the top surface of the core barrel, a fixing groove is opened. The upper ends of the three connecting bars respectively slide through the upper - end inner walls of the three first grooves and extend into the fixing groove. The upper ends of the three connecting bars are fixedly installed with a circular frame. The side surface of the circular frame is slidably connected with the inner wall of the fixing groove. The top surface of the circular frame contacts the bottom surface of the connecting pipe.

4. The geological sampling device for mine exploitation according to claim 3, characterized in that, On the inner wall of the fixing groove, three third grooves are opened. Inside the three third grooves, L - shaped bars are respectively slidably installed. The upper ends of the three L - shaped bars are fixedly connected with the bottom surface of the circular frame. On the top surfaces of the three L - shaped bars, slide rods are respectively slidably and penetratingly installed. Both ends of the three slide rods are respectively fixedly connected with the inner walls of the three third grooves. On the outer walls of the three slide rods, second elastic members are respectively slidably installed. Both ends of the three second elastic members are respectively fixedly connected with the bottom surfaces of the three L - shaped bars and the lower - end inner walls of the three third grooves.

5. The geological sampling equipment for mine exploitation according to claim 3, characterized in that, There are three fixed shells. On the inner wall of the fixing groove, three fourth grooves are opened. Inside the three fourth grooves, wedge - shaped shells are respectively slidably installed. The side surfaces of the three wedge - shaped shells are slidably connected with the outer wall of the circular frame.

6. The geological sampling equipment for mine exploitation according to claim 5, characterized in that, Inside the three fourth grooves, moving blocks are respectively slidably installed. The inner and outer walls of the three moving blocks are respectively slidably connected with the inner walls of the three wedge - shaped shells. On both side surfaces of the three moving blocks, inclined grooves are opened. On the inner walls of both sides of the three wedge - shaped shells, second cylinders are respectively fixedly installed. The outer walls of the multiple second cylinders are respectively slidably connected with the inner walls of the multiple inclined grooves.

7. The geological sampling device for mine exploitation according to claim 6, wherein Two connecting rods I are hinged to the top surfaces of the three moving blocks. Two connecting rods II are respectively hinged to the inner walls of the upper ends of the three fixed shells. An elastic member III is fixedly installed on the top surface of each of the three moving blocks, and the upper ends of the three elastic members III are respectively fixedly connected to the inner walls of the upper ends of the three fixed shells.

8. The geological sampling equipment for mine exploitation according to claim 7, characterized in that Placement grooves are respectively formed on both side surfaces of the three fixed shells. Through grooves are formed in the side surfaces of the plurality of placement grooves in a penetrating manner. The outer walls of the plurality of connecting rods I and the outer walls of the plurality of connecting rods II are slidably connected. The other ends of the plurality of connecting rods I and the other ends of the plurality of connecting rods II are respectively hinged to the side surfaces of a plurality of support plates. A support groove is formed on the bottom surface of the connecting pipe. The side surfaces of the plurality of support plates are in frictional connection with the inner wall of the support groove.

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