A sampling device for geological exploration

Abstract

The present application relates to the technical field of drilling sampling, and discloses a sampling device for geological exploration, which comprises a drilling machine, the surface of the drilling machine is connected with a driving motor, the drilling head and the sampling rod are combined, the rotating direction of the sampling rod can be changed after the drilling head reaches the designated position, the opening and closing plate is opened through centrifugal force, the soil around the sampling rod is sampled, the drilling head works synchronously, the time required for replacing the sampling rod by the drilling head can be reduced, the telescopic sleeve is arranged, the position of the telescopic sleeve is limited by the inserting rod and the counterweight when the sampling rod rotates, the telescopic sleeve is prevented from sliding to cause sample loss during sampling, the counterweight is in the reset state when the sampling rod is in the stationary state, the user can directly push the telescopic sleeve to take out the sample, the remaining positions can be drilled and sampled after the telescopic sleeve is reset under the action of the spring two, the sampling time is greatly saved, and the sampling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drilling sampling, in particular to a sampling device for geological exploration. BACKGROUND

[0002] The geological exploration sampling device is a tool or equipment for obtaining underground rock, soil, mineral or fluid samples, which is various in types and differs in exploration targets, depths and environments, mainly including motorized auger, impact sampler and piston sampler, etc.

[0003] The existing device adopts a motorized auger to drill a hole in the ground to be sampled when sampling soil, and the drill bit needs to be removed and replaced with a sampling tube after reaching the target area. The sampling tube is then driven into the target soil layer by a driving device, and the sampling tube is then removed and split to obtain the sample soil. The above-mentioned method not only needs to switch the drill bit and the sampling tube, but also needs to use other devices such as the driving device, which is low in efficiency and not suitable for preliminary sampling of geological soil.

[0004] Therefore, the present application provides a sampling device for geological exploration. SUMMARY

[0005] The present application aims to provide a sampling device for geological exploration to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a sampling device for geological exploration, comprising a drilling machine, wherein the surface of the drilling machine is connected with a driving motor, the output end of the driving motor is fixedly connected with a transmission rod, and the lower end of the transmission rod is provided with a drill bit.

[0007] A sampling assembly is arranged on the transmission rod, wherein the sampling assembly comprises a sampling rod, the upper end of the sampling rod is fixedly connected with the transmission rod, the lower end of the sampling rod is fixedly connected with the drill bit, the inside of the sampling rod is provided with a sampling cavity, the number of the sampling cavities is two groups, one group is close to the transmission rod, and the other group is close to the drill bit, the outer surface of the sampling rod is provided with an opening and closing groove at the corresponding position of the sampling cavity, and the opening and closing groove is rotatably provided with an opening and closing plate.

[0008] A centrifugal assembly is arranged on the sampling rod, wherein the centrifugal assembly comprises a centrifugal cavity, and the centrifugal cavity is slidably connected with a centrifugal plate, wherein the centrifugal plate is forced to open the opening and closing plate when subjected to centrifugal force, and the rotation of the opening and closing plate shovels the soil around the sampling rod into the inside of the sampling cavity.

[0009] The centrifugal cavity is of rectangular structure, a baffle is fixedly connected to the middle position of the centrifugal cavity, the centrifugal plate is in contact with the baffle, an adjusting cavity is formed in the upper end of the inner surface of the centrifugal cavity, a connecting rod is slidably arranged in the adjusting cavity, one end of the connecting rod is rotatably connected to the end of the centrifugal plate, an expansion slot is formed in the inner surface of the adjusting cavity, an expansion plate rotatably connected with the connecting rod is slidably connected in the expansion slot, a rotating sliding block is fixedly connected to the surface of the expansion plate, one end of an opening and closing plate is fixedly connected with a rotating rod, a rotating sliding groove matched with the rotating sliding block is formed in the surface of the rotating rod, and the rotating rod is rotatably connected in the sampling cavity.

[0010] The baffle is made of a magnet, the centrifugal plate is magnetically attracted to the baffle, and a spring I is fixedly connected between the centrifugal plate and the centrifugal cavity.

[0011] The centrifugal cavity is internally fixedly connected with a guide rod, an annular outer surface of the guide rod is provided with an opening, and the centrifugal plate is provided with a guide groove at a corresponding position of the guide rod.

[0012] The opening and closing plate is of arc-shaped design, the inner side of the end of the opening and closing plate away from the rotating rod is of inclined structure, and the arc length of the opening and closing groove is greater than the arc length of the opening and closing plate.

[0013] The annular outer surface of the sampling rod is sleeved with an expansion sleeve, the expansion slot covers the sampling cavity, a sliding block is fixedly connected to the inner surface of the expansion sleeve, a sliding groove is formed at a corresponding position of the sampling rod and the sliding block, the sliding block is located in the sliding groove, and a spring II is fixedly connected between the sliding block and the sliding groove.

[0014] The centrifugal cavity is further provided with a counterweight, a through groove is formed in the surface of the centrifugal plate, the counterweight is located in the through groove, a spring III is fixedly connected between the side of the counterweight away from the baffle and the centrifugal cavity, an insertion rod is fixedly connected to the surface of the counterweight, an insertion groove is formed at a corresponding position of the insertion rod and the sliding groove, the insertion rod is located in the insertion groove, and an anti-skid layer is coated at a corresponding position of the inner surface of the expansion sleeve and the insertion rod.

[0015] The thickness of the counterweight is greater than the thickness of the centrifugal plate, and the annular outer surface of the sampling rod is fixedly connected with a blocking block.

[0016] The insertion rod is of L-shaped structure, the end of the insertion rod away from the counterweight is in contact with the end of the sliding groove, and the corresponding outer surface of the insertion rod is also coated with an anti-skid layer.

[0017] The present application has at least the following advantages:

[0018] By combining the drill bit and the sampling rod, the rotation direction of the sampling rod can be changed after the drill bit reaches the designated position, the opening and closing plate is opened by centrifugal force, the soil around the sampling rod is sampled, and the drill bit works synchronously, which can reduce the time required for replacing the sampling rod, greatly improve the sampling efficiency, two places can be sampled at the same time by setting two groups of sampling cavities, improve the accuracy of analyzing sample composition, the above-mentioned structure can guarantee the sampling while reducing the time required for sampling, and is suitable for preliminary sampling of geological soil;

[0019] By setting the telescopic sleeve, the position of the telescopic sleeve is limited by the inserting rod and the counterweight when the sampling rod rotates, so that the telescopic sleeve is prevented from sliding during sampling to cause sample loss, and when the sampling rod is in a stationary state, the counterweight is in a reset state, the user can directly push the telescopic sleeve to take out the sample, and after the telescopic sleeve is reset under the action of the spring two, the remaining positions can be drilled and sampled, which greatly saves the sampling time and improves the sampling efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 It is a schematic diagram of the structure of the sampling rod and the drill bit of the present application;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the sampling rod of the present application;

[0023] Figure 4 It is a schematic diagram of the structure of the present application Figure 3 It is a schematic diagram of the structure of the present application

[0024] Figure 5 It is a schematic diagram of the structure of the present application Figure 3 It is a schematic diagram of the structure of the present application

[0025] Figure 6 It is a schematic diagram of the structure of the present application

[0026] Figure 7 It is a schematic diagram of the internal structure of the sampling rod of the present application;

[0027] Figure 8 It is a schematic diagram of the structure of the present application

[0028] Figure 9 It is a schematic diagram of the structure of the present application

[0029] In the figure: 1, drilling machine; 10, transmission rod; 11, drill bit; 20, sampling rod; 21, sampling cavity; 22, baffle; 23, spring I; 24, guide rod; 241, notch; 25, centrifugal cavity; 26, blocking ring; 27, centrifugal plate; 271, guide groove; 28, adjusting cavity; 29, connecting rod; 30, telescopic groove; 31, telescopic plate; 32, rotating rod; 33, rotary sliding groove; 34, opening and closing plate; 35, telescopic sleeve; 351, reserved groove; 352, blocking block; 36, sliding groove; 37, sliding block; 38, spring II; 39, opening and closing groove; 41, through groove; 42, counterweight; 43, insertion rod; 44, rotary sliding block; 45, spring III; 46, insertion groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only 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 skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Please refer to Figures 1-9 The present application provides a technical solution: a sampling device for geological exploration, comprising a drilling machine 1, the surface of the drilling machine 1 is connected with a driving motor, the output end of the driving motor is fixedly connected with a transmission rod 10, the transmission rod 10 can be connected end to end to increase, the lower end of the transmission rod 10 is provided with a drill bit 11;

[0032] A sampling assembly, the sampling assembly comprises a sampling rod 20, the upper end of the sampling rod 20 is fixedly connected with the transmission rod 10, the lower end is fixedly connected with the drill bit 11, the sampling rod 20 is internally provided with a sampling cavity 21, the sampling cavity 21 is two groups, one group is close to the transmission rod 10, the other group is close to the drill bit 11, the two groups of sampling cavities 21 can simultaneously sample at two positions at the same time, the outer surface of the sampling rod 20 is provided with an opening and closing groove 39 at the corresponding position of the sampling cavity 21, the opening and closing groove 39 is internally rotatably provided with an opening and closing plate 34, the sampling cavity 21 extends upward along the sampling rod 20 and communicates with the opening and closing groove 39, directly combines the sampling rod 20 with the drill bit 11, realizes sampling while drilling, without the need to replace the equipment, can improve the sampling speed;

[0033] A centrifugal assembly, the centrifugal assembly comprises a centrifugal cavity 25, the centrifugal cavity 25 is internally slidably connected with a centrifugal plate 27, the centrifugal plate 27 will force the opening and closing plate 34 to open when subjected to centrifugal force, the opening and closing plate 34 is controlled to open through centrifugal force, so that the opening of the opening and closing plate 34 is in a controllable state, and the sampling is controlled according to the requirement.

[0034] Please refer to Figure 3 , 4, 6, the centrifugal cavity 25 is rectangular structure design, the centrifugal cavity 25 middle position fixedly connected with baffle 22, the centrifugal plate 27 is in contact with baffle 22, the centrifugal cavity 25 inner surface both ends are provided with adjusting cavity 28, the adjusting cavity 28 inside sliding has connecting rod 29, the connecting rod 29 one end is rotatably connected with the end of centrifugal plate 27, the adjusting cavity 28 inner surface is provided with telescopic slot 30, the telescopic slot 30 inside slidingly connected with the telescopic plate 31 rotatably connected with connecting rod 29, the telescopic plate 31 surface is fixedly connected with spin slide block 44, the opening and closing plate 34 one end is fixedly connected with rotating rod 32, the rotating rod 32 surface is provided with spin slide slot 33 matched with spin slide block 44, the rotating rod 32 is located in the inside of sampling cavity 21, and is rotatably connected with it, when drill bit 11 drills to the appropriate position, can the drill bit 11 reverse rotation, the centrifugal force control centrifugal plate 27 away from baffle 22, centrifugal plate 27 pushes connecting rod 29 at this moment, forces telescopic plate 31 to move upwards along telescopic slot 30, the spin slide block 44 on the surface of telescopic plate 31 moves upwards, since spin slide block 44 is located in spin slide slot 33, telescopic plate 31 upwards movement will force rotating rod 32 to rotate, telescopic plate 31 is arc structure design, and is matched with rotating rod 32, rotating rod 32 is fixed with opening and closing plate 34, opening and closing plate 34 is opened, and opening and closing plate 34 rotates and shovels the soil around sampling rod 20 into the inside of sampling cavity 21, after sampling is finished, the rotating speed of sampling rod 20 decreases, the centrifugal force that centrifugal plate 27 receives reduces, and centrifugal plate 27 is reset through connecting rod 29 drive opening and closing plate 34, through the cooperation of the above structure, sampling rod 20 is synchronous with drill bit 11, can directly sample the soil of drilling position, need not replace drill bit 11 and sampling rod 20, greatly improves sampling efficiency.

[0035] Please refer to Figure 3 , 6 , 7, the baffle 22 is made of magnet, the centrifugal plate 27 is magnetically attracted, to ensure that there is enough magnetic force to restrain centrifugal force, the centrifugal plate 27 and the centrifugal cavity 25 are fixedly connected with spring one 23, when the centrifugal force that centrifugal plate 27 receives is greater than the magnetic force of baffle 22 and the elastic force generated by spring one 23, centrifugal plate 27 can move, and spring one 23 can also be used for resetting centrifugal plate 27.

[0036] Please refer to Figure 3 , 6 , 7, the centrifugal cavity 25 is fixedly connected with guide rod 24 inside, the annular outer surface of guide rod 24 is provided with aperture 241, the centrifugal plate 27 is provided with guide slot 271 at the corresponding position of guide rod 24, to increase the stability when centrifugal plate 27 moves, and the aperture 241 is provided, to flow through air, to avoid the hindrance of centrifugal plate 27 to air flow.

[0037] Please refer to Figure 7 , 8The opening and closing plate 34 is designed in an arc shape, and the inner side of the end of the opening and closing plate 34 away from the rotating rod 32 is designed in an inclined structure, facilitating subsequent sampling. The arc length of the opening and closing groove 39 is greater than the arc length of the opening and closing plate 34, preventing the opening and closing plate 34 from being unable to open due to the limitation of the length of the opening and closing groove 39 after being opened. The arc length of the opening and closing groove 39 is controlled to be slightly longer than that of the opening and closing plate 34, avoiding excessive opening of the opening and closing plate 34 and improving the structural stability.

[0038] Please refer to Figure 6 , 7 , the annular outer surface of the sampling rod 20 is sleeved with a telescopic sleeve 35, and the telescopic groove 30 covers the sampling cavity 21. When the sample is located inside the sampling cavity, it will be in contact with the telescopic sleeve 35. The telescopic sleeve 35 prevents the sample from separating from the sampling cavity 21 under the action of centrifugal force. The inner surface of the telescopic sleeve 35 is fixedly connected with a sliding block 37, and the sampling rod 20 is provided with a sliding groove 36 at the corresponding position of the sliding block 37. The movement of the telescopic sleeve 35 is limited to prevent it from rotating, thereby increasing the stability. The sliding block 37 is located inside the sliding groove 36, and the sliding block 37 and the sliding groove 36 are fixedly connected with a spring 38. When the user needs to take out the sample, the telescopic sleeve 35 is directly pushed, and the sample in the sampling cavity 21 can be taken out at this time. The spring 38 facilitates the resetting of the telescopic sleeve 35. Through the design of the above structure, the user can easily take out the sample.

[0039] Please refer to Figure 3 , 5 , 7, the centrifugal cavity 25 is further provided with a counterweight 42, the surface of the centrifugal plate 27 is provided with a through groove 41, the counterweight 42 is located inside the through groove 41, and the side of the counterweight 42 away from the baffle 22 is fixedly connected with a spring 45 between the centrifugal cavity 25. The spring 45 is used for automatic resetting of the counterweight 42. The surface of the counterweight 42 is fixedly connected with a plug rod 43. The sliding groove 36 is provided with a plug groove 46 at the corresponding position of the plug rod 43. The plug rod 43 is located inside the plug groove 46. The inner surface of the telescopic sleeve 35 is coated with an anti-skid layer at the corresponding position of the plug rod 43. By arranging the counterweight 42, the counterweight 42 cannot be magnetized and does not have the ability to be attracted to the baffle 22. When the sampling rod 20 rotates, the counterweight 42 is directly thrown out under the action of centrifugal force. The plug rod 43 resists the inner surface of the telescopic sleeve 35 along the plug groove 46 to fix and limit the position of the telescopic sleeve 35, avoiding the telescopic sleeve 35 from sliding when the drill bit 11 drills downward.

[0040] Please refer to Figure 6 , 7The thickness of the counterweight 42 is greater than the thickness of the centrifugal plate 27, and the counterweight 42 can limit the position. The four corners of the counterweight 42 are chamfered to reduce the contact area with the through groove 41, reduce the friction, and improve the response speed of the counterweight 42. The annular outer surface of the sampling rod 20 is fixedly connected with a blocking block 352, which further blocks the telescopic sleeve 35, limits the position when the telescopic sleeve 35 is reset by the second spring 38, and aligns with the opening and closing groove 39 to avoid blocking the rotation of the opening and closing plate 34.

[0041] Please refer to Figure 5 The insertion rod 43 is designed in an L-shaped structure, one end of the insertion rod 43 away from the counterweight 42 is in contact with the end of the sliding groove 36, and the outer surface of the insertion rod 43 corresponding to the telescopic sleeve 35 is also coated with a non-slip layer. The non-slip layer can improve the friction between the insertion rod 43 and the telescopic sleeve 35, improve the fixing effect, and at the same time, the non-slip layer can be provided with teeth to limit the telescopic sleeve 35. The sampling cavity 21 is two groups, and the telescopic sleeve 35 is also two groups. The surface of the telescopic sleeve 35 close to the drill bit 11 is provided with a reserved groove 351 to prevent the opening and closing plate 34 from being opened. The annular outer surface of the sampling rod 20 is fixedly connected with a blocking ring 26 for blocking the telescopic sleeve 35 close to the drill bit 11 from sliding excessively. The telescopic sleeve 35 close to the transmission rod 10 moves downward to open the sampling cavity 21, and the telescopic sleeve 35 close to the drill bit 11 moves upward to open the sampling cavity 21.

[0042] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0043] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.

Claims

1. A sampling device for geological exploration, comprising a drilling machine (1), the drilling machine (1) is surface-connected with a driving motor, the output end of the driving motor is fixedly connected with a transmission rod (10), the lower end of the transmission rod (10) is provided with a drill bit (11), characterized in that: a sampling assembly, the sampling assembly comprises a sampling rod (20), the upper end of the sampling rod (20) is fixedly connected with the transmission rod (10), the lower end is fixedly connected with the drill bit (11), the inside of the sampling rod (20) is provided with a sampling cavity (21), the sampling cavity (21) is two groups, one group is close to the transmission rod (10), the other group is close to the drill bit (11), the outer surface of the sampling rod (20) is provided with an opening and closing groove (39) at the corresponding position of the sampling cavity (21), the inside of the opening and closing groove (39) is rotatably provided with an opening and closing plate (34); a centrifugal assembly, the centrifugal assembly comprises a centrifugal cavity (25), the centrifugal cavity (25) is slidably connected with a centrifugal plate (27), the centrifugal plate (27) will force the opening and closing plate (34) to open when subjected to centrifugal force, the rotation of the opening and closing plate (34) will shovel the soil around the sampling rod (20) into the inside of the sampling cavity (21); the centrifugal cavity (25) is designed in a rectangular structure, the centrifugal cavity (25) is fixedly connected with a baffle (22) at the middle position, the centrifugal plate (27) is in contact with the baffle (22), the inner surface of the centrifugal cavity (25) is provided with an adjusting cavity (28) at the upper end, the inside of the adjusting cavity (28) is slidably provided with a connecting rod (29), one end of the connecting rod (29) is rotatably connected with the end of the centrifugal plate (27), the inner surface of the adjusting cavity (28) is provided with an extension slot (30) penetratingly, the inside of the extension slot (30) is slidably connected with an extension plate (31) rotatably connected with the connecting rod (29), the surface of the extension plate (31) is fixedly connected with a rotary sliding block (44), one end of the opening and closing plate (34) is fixedly connected with a rotating rod (32), the surface of the rotating rod (32) is provided with a rotary sliding groove (33) matched with the rotary sliding block (44), the rotating rod (32) is located in the inside of the sampling cavity (21) and is rotatably connected therewith; the baffle (22) is made of a magnet, the centrifugal plate (27) is magnetically attracted thereto, the centrifugal plate (27) and the centrifugal cavity (25) are fixedly connected with a spring (23); the inside of the centrifugal cavity (25) is fixedly connected with a guide rod (24), the annular outer surface of the guide rod (24) is provided with an opening (241), the centrifugal plate (27) is provided with a guide slot (271) at the corresponding position of the guide rod (24); the opening and closing plate (34) is designed in an arc shape, the inside of the end of the opening and closing plate (34) away from the rotating rod (32) is designed in an inclined structure, the arc length of the opening and closing groove (39) is greater than the arc length of the opening and closing plate (34).

2. A sampling device for geological exploration according to claim 1, characterised in that: The annular outer surface of the sampling rod (20) is sleeved with a telescopic sleeve (35), the telescopic groove (30) covers the sampling cavity (21), the inner surface of the telescopic sleeve (35) is fixedly connected with a sliding block (37), the sampling rod (20) is provided with a sliding groove (36) at the corresponding position of the sliding block (37), the sliding block (37) is located in the sliding groove (36), and spring No. 2 (38) is fixedly connected between the sliding block (37) and the sliding groove (36); The centrifugal cavity (25) is further provided with a counterweight (42), the centrifugal plate (27) is provided with a through groove (41) on the surface, the counterweight (42) is located in the through groove (41), spring No. 3 (45) is fixedly connected between the side, away from the baffle (22), of the counterweight (42) and the centrifugal cavity (25), the surface of the counterweight (42) is fixedly connected with a plug rod (43), the sliding groove (36) is provided with a plug groove (46) at the corresponding position of the plug rod (43), the plug rod (43) is located in the plug groove (46), and the inner surface of the telescopic sleeve (35) is coated with an anti-skid layer at the corresponding position of the plug rod (43).

3. A sampling device for geological exploration according to claim 2, characterised in that: The thickness of the counterweight (42) is greater than the thickness of the centrifugal plate (27), and the annular outer surface of the sampling rod (20) is fixedly connected with a blocking block (352).

4. A sampling device for geological exploration according to claim 3, characterised in that: The plug rod (43) is designed in an L-shaped structure, one end of the plug rod (43), away from the counterweight (42), is in contact with the end of the sliding groove (36), and the corresponding outer surface of the plug rod (43) and the telescopic sleeve (35) is also coated with an anti-skid layer.

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