Drilling sampling equipment for geological exploration

Abstract

The invention is applicable to the technical field of geological sampling, and provides geological exploration drilling sampling equipment which comprises a sampling barrel and a guide block and further comprises a rotating sleeve rotationally connected with the lower end of the guide block and a second motor fixed to the upper end of the guide block, and the rotating end of the second motor is connected with the rotating sleeve; the lower end of the sampling barrel is in threaded connection with an outer side drill bit, a sliding shaft is slidably connected in the sampling barrel in the length direction, an inner side drill bit is fixed at the lower end of the sliding shaft, and the inner side drill bit and the outer side drill bit form a complete drill bit. Through the design that the inner side drill bit and the outer side drill bit form a complete drill bit, when the inner side drill bit and the outer side drill bit are staggered, the containing cavity is opened, a soil sample enters the containing cavity through the middle hollow position of the outer side drill bit, and every time the inner side drill bit and the outer side drill bit are staggered, a spacer ring is driven to move upwards; sample soil with different depths is separated through the spacer ring, so that the soil with different depths is prevented from being mixed.

Description

Technical Field

[0001] The invention belongs to the technical field of geological sampling, and in particular relates to a drilling sampling device for geological exploration. Background Art

[0002] Geological exploration sampling can obtain underground geological information by obtaining samples from the ground and analyzing the samples, so as to better understand the geological conditions and carry out corresponding engineering design and construction.

[0003] During the geological exploration sampling process, it is sometimes necessary to sample soil samples at different depths. For example, a geological exploration drilling sampling device and method disclosed in a Chinese invention patent (CN118376443B) can be used. When sampling, the drill rod can be extended from the bottom of the sampling barrel to perform preliminary drilling without sampling other impurities such as surface soil until the first depth sampling layer is reached. The sampling barrel is then controlled to slide and fit on the ground, and drilling is continued to achieve sampling of the soil in the first depth sampling layer. The soil is transported to the top of the sampling barrel by the spiral blade and reaches the hopper through the second discharge port to realize automatic sampling operation. When the sampling of the first depth sampling layer is completed, the sliding barrel moves away from the ground and continues drilling. At this time, the spiral blade does not transport soil until the second depth sampling layer is reached. The sampling barrel is again controlled to slide and fit on the ground, and drilling is continued to achieve sampling of the soil in the second depth sampling layer.

[0004] Although the above method can achieve soil sampling at different depths, after sampling the first depth sampling layer, the sampling cylinder is separated from the ground, and the sampling cylinder and the spiral blades cannot continue to transport the soil upward, causing the soil to remain in the sampling cylinder. When sampling the soil of the second depth sampling layer, the soil discharged by the sampling cylinder includes the soil of the first depth sampling layer and the soil of the second depth sampling layer, causing the soil of different depths to mix, affecting the accuracy of soil sampling. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a drilling sampling device for geological exploration, which aims to solve the problem that after the sampling of the first depth sampling layer is completed in the existing drilling sampling equipment for geological exploration, the sampling barrel is separated from the ground, and the sampling barrel and the spiral blade are unable to continue to transport soil upward, resulting in soil remaining in the sampling barrel. When sampling the soil of the second depth sampling layer, the soil discharged by the sampling barrel includes soil from the first depth sampling layer and soil from the second depth sampling layer, resulting in mixing of soils at different depths, affecting the accuracy of soil sampling.

[0006] The present invention is achieved as follows: a drilling sampling equipment for geological exploration includes a sampling barrel and a guide block, and also includes: a rotating sleeve rotatably connected to the lower end of the guide block, and a motor 2 fixed at the upper end of the guide block, the rotating end of the motor 2 being connected to the rotating sleeve; the lower end of the sampling barrel is threadedly connected to an outer drill bit, and a sliding shaft is slidably connected to the inside of the sampling barrel along the length direction, and an inner drill bit is fixed at the lower end of the sliding shaft, and the inner drill bit and the outer drill bit constitute a complete drill bit; a telescopic mechanism is provided on the guide block, and the telescopic mechanism is used to drive the sliding shaft to move relative to the sampling barrel; a storage chamber is provided at the lower end of the sampling barrel, and a spacer ring 1, a spacer ring 2 and a spacer ring 3 are slidably connected in the storage chamber from top to bottom in sequence, and a transmission mechanism is provided in the sampling barrel, and when the sliding shaft moves up and down relative to the sampling barrel, the transmission mechanism drives the spacer ring 1, the spacer ring 2 and the spacer ring 3 to move upward in sequence.

[0007] A further technical solution also includes a lifting mechanism, which includes a support frame and a guide groove arranged along the length direction of the support frame. A screw rod is rotatably connected in the guide groove. A motor 1 is fixed to the upper end of the support frame, and the rotating end of the motor 1 is connected to the screw rod. The guide block is slidably connected in the guide groove, and the screw rod is threadedly connected to the guide block.

[0008] A further technical solution is that the telescopic mechanism includes two guide shafts vertically slidably connected on the guide block, a guide ring is fixed at the lower end of the two guide shafts, a hydraulic cylinder is fixed at the lower end of the guide block, the telescopic end of the hydraulic cylinder is connected to the guide ring, a drive shaft is slidably connected along the length direction inside the rotating sleeve, side ears are fixed on the side walls of the drive shaft, the side ears pass through the side walls of the rotating sleeve and are slidably connected to the inner wall of the guide ring, and the lower end of the drive shaft is connected to the upper end of the sliding shaft by a bolt.

[0009] A further technical solution is that the lower end of the rotating sleeve is threadedly connected to an extension sleeve, the lower end of the extension sleeve is threadedly connected to the upper end of the sampling tube, an extension shaft is slidably connected inside the extension sleeve along the length direction, one end of the extension shaft is connected to the drive shaft by a bolt, and the other end of the extension shaft is connected to the sliding shaft by a bolt.

[0010] A further technical solution is that the transmission mechanism includes a connecting shaft 1 fixed at the upper end of the spacer ring 1, a connecting shaft 2 fixed at the upper end of the spacer ring 2, and a connecting shaft 3 fixed at the upper end of the spacer ring 3. The upper part of the sampling tube is provided with an installation cavity, the upper ends of the connecting shaft 1, the connecting shaft 2 and the connecting shaft 3 all extend into the installation cavity, the upper end of the connecting shaft 1 is fixed with a sliding sleeve 1, the upper end of the connecting shaft 2 is fixed with a sliding sleeve 2, the sliding sleeve 2 is located above the sliding sleeve 1, the upper end of the connecting shaft 3 is fixed with a sliding sleeve 3, the sliding sleeve 3 is located above the sliding sleeve 2, the lower ends of the sliding sleeve 1, the sliding sleeve 2 and the sliding sleeve 3 are all fixed with tension springs, the lower ends of multiple tension springs are all fixed at the lower end of the installation cavity, a one-way pushing component is provided on the sliding shaft, when the sliding shaft moves up and down, the one-way pushing component drives the sliding sleeve 1 to move upward, and a limiting component is provided on the sliding sleeve 1, and the limiting component is used to limit the downward movement of the sliding sleeve 1.

[0011] A further technical solution is that the one-way pushing component includes a ratchet bar arranged on the side wall of the sliding shaft, and a slide groove one horizontally arranged in the slide sleeve one, a slider is slidably connected in the slide groove one, one end of the slider is fixed with an engaging tooth, the engaging tooth is engaged with the ratchet bar, and the other end of the slider is fixed with a compression spring one, and the compression spring one is arranged in the slide groove one.

[0012] A further technical solution is that the limiting component includes a slide groove 2 horizontally arranged on the slide sleeve 1, and a plurality of limiting holes arranged on the side wall of the sampling tube. A limiting block is slidably connected in the slide groove 2, one end of the limiting block cooperates with the limiting hole, and the other end of the limiting block is fixed with a compression spring 2, and the end of the compression spring 2 is fixed in the slide groove 2.

[0013] According to a further technical solution, a push slider is slidably connected in the first slide groove, a transmission wire shaft is rotatably connected to the push slider, and the transmission wire shaft is threadedly connected to the first slide sleeve.

[0014] A further technical solution is that a guide groove is provided in the sampling cylinder along the length direction, a sliding plate is slidably connected in the guide groove, one end of the sliding plate passes through the sampling cylinder, and a compression spring three is fixed to the other end of the sampling cylinder, the end of the compression spring three is fixed in the guide groove, and a plurality of avoidance openings are provided on the sliding plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention utilizes an inner drill bit and an outer drill bit to form a complete drill bit design. When the inner drill bit and the outer drill bit are misaligned, the storage chamber is opened, and the soil sample enters the storage chamber through the hollow portion in the middle of the outer drill bit. Each time the inner drill bit and the outer drill bit are misaligned, a spacer ring is driven upward to separate the soil samples at different depths through the spacer ring, thereby preventing soil from mixing at different depths and improving the accuracy of soil sampling.

[0017] 2. The sampling depth can be increased by setting an extension sleeve and an extension shaft. The number of extension sleeves and extension shafts is not limited to one set. According to the actual situation, the appropriate number of extension sleeves and extension shafts can be selected to facilitate sampling of soil at different depths.

[0018] 3. When the outer drill bit is screwed into the lower end of the sampling tube, the outer drill bit presses against the lower end of the sliding plate, the compression spring 3 is in a compressed state, the avoidance port and the limit hole are misaligned, and the sliding plate blocks the limit hole to prevent soil from entering the limit hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a drilling and sampling device for geological exploration provided by the present invention;

[0020] Figure 2 The present invention provides Figure 1 Schematic diagram of the connection structure of the sampling tube;

[0021] Figure 3 The present invention provides Figure 1 Schematic diagram of the internal structure of the sampling tube;

[0022] Figure 4 The present invention provides Figure 3 Schematic diagram of the structure of the sampling tube;

[0023] Figure 5 The present invention provides Figure 3 Schematic diagram of the structure after removing the sampling tube;

[0024] Figure 6 The present invention provides Figure 5 Schematic diagram of the structure after removing the sliding shaft;

[0025] Figure 7 The present invention provides Figure 6 Schematic diagram of the structure of the middle sliding shaft;

[0026] Figure 8 The present invention provides Figure 1 Schematic diagram of the enlarged structure of A in the middle;

[0027] Figure 9 The present invention provides Figure 6 Schematic diagram of the structure of the middle sliding sleeve 1;

[0028] Figure 10 The present invention provides Figure 9 Schematic diagram of the enlarged structure of B;

[0029] Figure 11 The present invention provides Figure 8 Schematic diagram of the connection structure of the rotating sleeve;

[0030] Figure 12 The present invention provides Figure 11 Schematic diagram of the structure after removing the rotating sleeve;

[0031] Figure 13 The present invention provides Figure 3 Schematic diagram of the structure of the middle sliding plate;

[0032] Figure 14 The present invention provides Figure 1 Schematic diagram of the internal structure of the middle extension sleeve;

[0033] Figure 15 The present invention provides Figure 3 Schematic diagram of septum ring 1, septum ring 2 and septum ring 3 performing sampling at the first sampling depth, the second sampling depth and the third sampling depth respectively.

[0034] In the accompanying drawings: 101, sampling tube; 102, outer drill bit; 103, sliding shaft; 104, inner drill bit; 105, storage chamber; 106, spacer ring 1; 107, spacer ring 2; 108, spacer ring 3; 109, guide block; 110, rotating sleeve; 111, motor 2; 2, lifting mechanism; 201, support frame; 202, guide groove; 203, motor 1; 204, screw rod; 301, extension sleeve; 302, extension shaft; 4, telescopic mechanism; 401, guide shaft 1; 402, guide ring; 403, hydraulic cylinder; 404, drive shaft; 405, side ear; 5, transmission mechanism; 5 01. Connecting shaft one; 502. Connecting shaft two; 503. Connecting shaft three; 504. Mounting cavity; 505. Tension spring; 506. Sleeve one; 507. Sleeve two; 508. Sleeve three; 6. One-way push assembly; 601. Ratchet bar; 602. Slide groove one; 603. Slider; 604. Engaging teeth; 605. Compression spring one; 701. Push slider; 702. Transmission wire shaft; 8. Limiting assembly; 801. Slide groove two; 802. Limit block; 803. Compression spring two; 804. Limit hole; 901. Guide slide groove; 902. Sliding plate; 903. Avoidance opening; 904. Compression spring three. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0037] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 15 As shown, a drilling sampling device for geological exploration provided by one embodiment of the present invention includes a sampling barrel 101 and a guide block 109, and further includes: a rotating sleeve 110 rotatably connected to the lower end of the guide block 109, and a second motor 111 fixed to the upper end of the guide block 109, the rotating end of the second motor 111 being connected to the rotating sleeve 110; an outer drill bit 102 is threadedly connected to the lower end of the sampling barrel 101, a sliding shaft 103 is slidably connected to the inside of the sampling barrel 101 along the length direction, an inner drill bit 104 is fixed to the lower end of the sliding shaft 103, and the inner drill bit 104 and the outer drill bit 102 form a complete Drill bit; A telescopic mechanism 4 is provided on the guide block 109, and the telescopic mechanism 4 is used to drive the sliding shaft 103 to move relative to the sampling cylinder 101; A storage chamber 105 is provided at the lower end of the sampling cylinder 101 (the outer drill bit 102 is located below the storage chamber 105), and a spacer ring 106, a spacer ring 2 107 and a spacer ring 3 108 are slidably connected in sequence from top to bottom in the storage chamber 105, and a transmission mechanism 5 is provided in the sampling cylinder 101. When the sliding shaft 103 moves up and down relative to the sampling cylinder 101, the transmission mechanism 5 drives the spacer ring 106, the spacer ring 2 107 and the spacer ring 3 108 to move upward in sequence.

[0038] In the embodiment of the present invention, when in use, the inner drill bit 104 and the outer drill bit 102 form a complete drill bit, the motor 2 111 drives the rotating sleeve 110 to rotate, the rotating sleeve 110 drives the sampling barrel 101 to rotate, the sampling barrel 101 drives the outer drill bit 102 and the sliding shaft 103 to rotate, the sliding shaft 103 drives the inner drill bit 104 to rotate, and thus the outer drill bit 102 and the inner drill bit 104 rotate synchronously, press the guide block 109 downward, the guide block 109 drives the rotating sleeve 110 to move downward, the rotating sleeve 110 drives the sampling barrel 101 to move downward, and the sampling barrel 101 The outer drill bit 102 and the inner drill bit 104 are extended into the ground. When the outer drill bit 102 reaches the first sampling depth, the telescopic mechanism 4 drives the sliding shaft 103 to move upward, the sliding shaft 103 drives the inner drill bit 104 to move upward, the transmission mechanism 5 drives the spacer ring 106 to move upward, and then the spacer ring 106 and the sliding shaft 103 move upward synchronously. After the sliding shaft 103 drives the inner drill bit 104 to separate from the outer drill bit 102, as the sampling tube 101 moves downward and rotates, the soil enters the receiving chamber 105 through the hollow part in the middle of the outer drill bit 102. Located between the first and second spacer rings 106 and 107, the telescopic mechanism 4 drives the sliding shaft 103 to move downward, and the sliding shaft 103 drives the inner drill bit 104 to move downward and reset. The inner drill bit 104 moving downward pushes out the excess soil in the receiving chamber 105, thereby completing the first soil sampling; when the outer drill bit 102 reaches the second sampling depth, the telescopic mechanism 4 drives the sliding shaft 103 to move upward, and the sliding shaft 103 drives the inner drill bit 104 to move upward, and the transmission mechanism 5 drives the first and second spacer rings 106 and 107 to move upward, thereby making the first and second spacer rings 106 and 107 move downward. The second spacer ring 107 moves upward synchronously with the sliding shaft 103. After the sliding shaft 103 drives the inner drill bit 104 to separate from the outer drill bit 102, as the sampling tube 101 moves downward and rotates, the soil enters the receiving chamber 105 through the hollow portion in the middle of the outer drill bit 102. The soil is located between the second spacer ring 107 and the third spacer ring 108. The telescopic mechanism 4 drives the sliding shaft 103 downward, and the sliding shaft 103 drives the inner drill bit 104 to move downward and reset. The inner drill bit 104 that moves downward pushes out the excess soil in the receiving chamber 105, thereby completing the second soil sampling.When the outer drill bit 102 reaches the third sampling depth, the telescopic mechanism 4 drives the sliding shaft 103 to move upward, and the sliding shaft 103 drives the inner drill bit 104 to move upward, and the transmission mechanism 5 drives the spacer ring 106, the spacer ring 2 107 and the spacer ring 3 108 to move upward, so that the spacer ring 106, the spacer ring 2 107, the spacer ring 3 108 and the sliding shaft 103 move upward synchronously. After the sliding shaft 103 drives the inner drill bit 104 to separate from the outer drill bit 102, as the sampling tube 101 moves downward and rotates, the soil enters the receiving chamber 105 through the hollow part in the middle of the outer drill bit 102, and the soil is located below the spacer ring 3 108. The telescopic mechanism 4 drives the sliding shaft 103 to move downward, and the sliding shaft 103 drives the inner drill bit 104 to move downward and reset. The inner drill bit 104 that moves downward pushes out the excess soil in the receiving chamber 105, thereby completing the third soil sampling. After the completion, when the soil needs to be taken out from the storage chamber 105, the outer drill bit 102 is unscrewed from the lower end of the sampling tube 101, and then the sample soil is taken out from the lower end of the sampling tube 101. In this embodiment, the preferred spacer rings are spacer ring 106, spacer ring 2 107 and spacer ring 3 108, but are not limited to three spacer rings. The number of spacer rings can be selected according to the actual number of sampling times. The present invention uses the inner drill bit 104 and the outer drill bit 102 to form a complete drill bit design. When the inner drill bit 104 and the outer drill bit 102 are misaligned, the storage chamber 105 is opened, and the soil sample enters the storage chamber 105 through the hollow portion in the middle of the outer drill bit 102. Each time the inner drill bit 104 and the outer drill bit 102 are misaligned, a spacer ring is driven to move upward, and the sample soil at different depths is separated by the spacer rings, thereby preventing the mixing of soil at different depths, thereby improving the accuracy of soil sampling.

[0039] like Figure 1 As shown, as a preferred embodiment of the present invention, it also includes a lifting mechanism 2, which includes a support frame 201 and a guide groove 202 arranged on the support frame 201 along the length direction, and a screw rod 204 is rotatably connected in the guide groove 202. A motor 203 is fixed to the upper end of the support frame 201, and the rotating end of the motor 203 is connected to the screw rod 204. The guide block 109 is slidably connected in the guide groove 202, and the screw rod 204 is threadedly connected to the guide block 109.

[0040] In the embodiment of the present invention, the motor 1 203 drives the screw rod 204 to rotate. Under the guidance of the guide groove 202, the rotating screw rod 204 drives the guide block 109 to move up and down through thread transmission.

[0041] like Figure 1 、 Figure 2 、 Figure 8 、 Figure 11 and Figure 12As shown, as a preferred embodiment of the present invention, the telescopic mechanism 4 includes two guide shafts 401 vertically slidably connected on the guide block 109, and the lower ends of the two guide shafts 401 are fixed with guide rings 402. The lower end of the guide block 109 is fixed with a hydraulic cylinder 403, and the telescopic end of the hydraulic cylinder 403 is connected to the guide ring 402. The driving shaft 404 is slidably connected along the length direction in the rotating sleeve 110, and the side ears 405 are fixed on the side walls of the driving shaft 404. The side ears 405 pass through the side walls of the rotating sleeve 110 and are slidably connected to the inner wall of the guide ring 402. The lower end of the driving shaft 404 is connected to the upper end of the sliding shaft 103 by bolts.

[0042] In an embodiment of the present invention, in the initial state, the hydraulic cylinder 403 is in an extended state, the outer drill bit 102 and the inner drill bit 104 are in a connected state, the rotating sleeve 110 drives the driving shaft 404 to rotate, and the driving shaft 404 drives the side ears 405 to rotate in the guide ring 402, and the inner wall of the guide ring 402 is provided with an annular sliding groove; when sampling, the hydraulic cylinder 403 contracts, and under the guiding action of the guide shaft 401, the hydraulic cylinder 403 drives the guide ring 402 to move upward, the guide ring 402 drives the side ears 405 to move upward, the side ears 405 drive the driving shaft 404 to move upward, and the driving shaft 404 drives the sliding shaft 103 to move upward.

[0043] like Figure 1 、 Figure 2 、 Figure 8 、 Figure 11 、 Figure 12 and Figure 14 As shown, as a preferred embodiment of the present invention, the lower end of the rotating sleeve 110 is threadedly connected to an extension sleeve 301, the lower end of the extension sleeve 301 is threadedly connected to the upper end of the sampling tube 101, and an extension shaft 302 is slidably connected in the extension sleeve 301 along the length direction, one end of the extension shaft 302 is connected to the drive shaft 404 by a bolt, and the other end of the extension shaft 302 is connected to the sliding shaft 103 by a bolt.

[0044] In an embodiment of the present invention, the sampling depth can be increased by providing an extension sleeve 301 and an extension shaft 302. The number of extension sleeves 301 and extension shafts 302 is not limited to one group. An appropriate number of extension sleeves 301 and extension shafts 302 can be selected according to actual conditions, thereby facilitating sampling of soil at different depths.

[0045] like Figure 2-Figure 10As shown, as a preferred embodiment of the present invention, the transmission mechanism 5 includes a connecting shaft 1 501 fixed at the upper end of the spacer ring 106, a connecting shaft 2 502 fixed at the upper end of the spacer ring 2 107, and a connecting shaft 3 503 fixed at the upper end of the spacer ring 3 108. The upper portion of the sampling tube 101 is provided with a mounting cavity 504. The upper ends of the connecting shaft 1 501, the connecting shaft 2 502 and the connecting shaft 3 503 all extend into the mounting cavity 504. The upper end of the connecting shaft 1 501 is fixed with a sliding sleeve 1 506. The upper end of the connecting shaft 2 502 is fixed with a sliding sleeve 2 507. The sliding sleeve 2 507 is located at the sliding cavity 504. The sleeve 506 is above the first sleeve, the upper end of the connecting shaft 503 is fixed with a sliding sleeve 3 508, the sliding sleeve 3 508 is located above the sliding sleeve 2 507, the lower ends of the sliding sleeve 1 506, the sliding sleeve 2 507, and the sliding sleeve 3 508 are all fixed with a tension spring 505, and the lower ends of the multiple tension springs 505 are all fixed to the lower end of the mounting cavity 504. The sliding shaft 103 is provided with a one-way push component 6. When the sliding shaft 103 moves up and down, the one-way push component 6 drives the sliding sleeve 1 506 to move upward. The sliding sleeve 1 506 is provided with a limiting component 8, and the limiting component 8 is used to limit the sliding sleeve 1 506 to move upward. The one-way pushing component 6 includes a ratchet bar 601 provided on the side wall of the sliding shaft 103, and a slide groove 602 provided horizontally in the sliding sleeve 506, a slider 603 is slidably connected in the slide groove 602, one end of the slider 603 is fixed with a meshing tooth 604, the meshing tooth 604 is engaged with the ratchet bar 601, and the other end of the slider 603 is fixed with a compression spring 605, the compression spring 605 pushes the slider 603 by elastic force, and the compression spring 605 is provided in the slide groove 602; the limiting component 8 includes a slide groove 28 provided horizontally on the sliding sleeve 506 01, and a plurality of limiting holes 804 are arranged on the side wall of the sampling tube 101, the limiting block 802 is slidably connected in the second slide groove 801, one end of the limiting block 802 cooperates with the limiting hole 804, and the other end of the limiting block 802 is fixed with a compression spring 2 803, and the end of the compression spring 2 803 is fixed in the second slide groove 801; the pushing slider 701 is slidably connected in the first slide groove 602, and the pushing slider 701 is rotatably connected with a transmission wire shaft 702, the transmission wire shaft 702 is threadedly connected to the sliding sleeve 1 506, and the transmission wire shaft 702 passes through the slider 603.

[0046] In the embodiment of the present invention, in the initial state, a plurality of tension springs 505 pull the sleeve 1 506, the sleeve 2 507 and the sleeve 3 508 respectively, thereby causing the spacer ring 106, the spacer ring 2 107 and the spacer ring 3 108 to overlap on the outer drill bit 102. When the outer drill bit 102 reaches the sampling depth, the sliding shaft 103 moves upward, and the sliding shaft 103 drives the ratchet bar 601 to move upward. The compression spring 1 605 drives the slider 603 to move through the elastic force, and the slider 603 drives the meshing teeth 604 to engage with the ratchet bar 601, thereby causing the ratchet bar 601 to drive the meshing teeth 604, the slider 603 and the sleeve 1 506 to move upward. The sleeve 1 506 overcomes the elastic force of the tension spring 505 and moves upward. The sleeve 1 506 drives the spacer ring 106 to move upward through the connecting shaft 1 501, thereby causing the spacer ring 1 Ring 106 and sliding shaft 103 move upward at the same time. After the sliding shaft 103 drives the inner drill bit 104 to separate from the outer drill bit 102, as the sampling tube 101 moves downward and rotates, the soil enters the receiving chamber 105 through the hollow part in the middle of the outer drill bit 102. The soil is located between the spacer ring 106 and the spacer ring 2 107. The compression spring 2 803 pushes the limit block 802. The limit block 802 is inserted into the lowermost limit hole 804, thereby limiting the downward movement of the sliding sleeve 1 506. The sliding sleeve 1 506 limits the downward movement of the spacer ring 106 through the connecting shaft 1 501. The sliding shaft 103 moves downward, and the sliding shaft 103 drives the inner drill bit 104 to move downward and reset. The inner drill bit 104 that moves downward pushes out the excess soil in the receiving chamber 105, thereby completing the first soil sampling.

[0047] When the outer drill bit 102 reaches the second sampling depth, the sliding shaft 103 moves upward, and the sliding shaft 103 drives the ratchet bar 601 to move upward. The compression spring 1 605 drives the slider 603 to move through the elastic force. The slider 603 drives the meshing teeth 604 to mesh with the ratchet bar 601, thereby causing the ratchet bar 601 to drive the meshing teeth 604, the slider 603 and the sliding sleeve 1 506 to move upward. The sliding sleeve 1 506 overcomes the elastic force of the tension spring 505 and pushes the sliding sleeve 2 507 upward. The sliding sleeve 2 507 drives the spacer ring 2 107 to move upward through the connecting shaft 2 502, thereby causing the spacer ring 106, the spacer ring 2 107 and the sliding shaft 103 to move upward at the same time. After the sliding shaft 103 drives the inner drill bit 104 to separate from the outer drill bit 102, As the sampling tube 101 moves downward and rotates, the soil enters the receiving chamber 105 through the hollow part in the middle of the outer drill bit 102. The soil is located between the second spacer ring 107 and the third spacer ring 108. The second compression spring 803 pushes the limit block 802. The limit block 802 is inserted into the second limit hole 804 from the bottom to the top, thereby limiting the downward movement of the sliding sleeve 506. The sliding sleeve 506 limits the downward movement of the sliding sleeve 2 507. The sliding sleeve 2 507 limits the downward movement of the spacer ring 2 107 through the connecting shaft 2 502. The sliding shaft 103 moves downward, and the sliding shaft 103 drives the inner drill bit 104 to move downward and reset. The inner drill bit 104 that moves downward pushes out the excess soil in the receiving chamber 105, thereby completing the second soil sampling.

[0048] When the outer drill bit 102 reaches the third sampling depth, the sliding shaft 103 moves upward, and the sliding shaft 103 drives the ratchet bar 601 to move upward. The compression spring 1 605 drives the slider 603 to move through the elastic force. The slider 603 drives the meshing teeth 604 to mesh with the ratchet bar 601, thereby causing the ratchet bar 601 to drive the meshing teeth 604, the slider 603 and the sliding sleeve 1 506 to move upward. The sliding sleeve 1 506 overcomes the elastic force of the tension spring 505 and pushes the sliding sleeve 2 507 and the sliding sleeve 3 508 upward. The sliding sleeve 3 508 drives the spacer ring 3 108 to move upward through the connecting shaft 3 503, thereby causing the spacer ring 106, the spacer ring 2 107, the spacer ring 3 108 and the sliding shaft 103 to move upward at the same time. After the sliding shaft 103 drives the inner drill bit 104 to separate from the outer drill bit 102, as the sampling tube 101 moves downward and rotates, the soil passes through the middle of the outer drill bit 102. The empty space enters the receiving chamber 105, and the soil is located below the spacer ring 3 108. The compression spring 2 803 pushes the limit block 802, and the limit block 802 is inserted into the third limit hole 804 from the bottom to the top, thereby limiting the downward movement of the sliding sleeve 1 506, the sliding sleeve 1 506 limits the downward movement of the sliding sleeve 2 507, and the sliding sleeve 2 507 limits the downward movement of the sliding sleeve 3 508. The sliding sleeve 3 508 limits the downward movement of the spacer ring 3 108 through the connecting shaft 3 503, and the sliding shaft 103 moves downward, and the sliding shaft 103 drives the inner drill bit 104 to move downward and reset. The downward moving inner drill bit 104 pushes out the excess soil in the receiving chamber 105, thereby completing the third soil sampling. The preferred spacer rings in this example are spacer ring 106, spacer ring 2 107 and spacer ring 3 108, but are not limited to three spacer rings. The number of spacer rings can be selected according to the actual number of sampling times.

[0049] After the sampling is completed, when the soil needs to be taken out from the storage chamber 105, the outer drill bit 102 is unscrewed from the lower end of the sampling tube 101, and the transmission wire shaft 702 is rotated (a wrench or other tool is passed through the limit hole 804 to screw the transmission wire shaft 702). The transmission wire shaft 702 drives the slider 701 to move through threaded transmission, pushing the slider 701 to overcome the elastic force of the compression spring 1 605 and drive the slider 603 to move. The slider 603 drives the meshing teeth 604 away from the ratchet bar 601, and the meshing teeth 604 do not engage with the ratchet bar 601. Then, the limit block 802 is pushed (the limit block 802 is pushed through the limit hole 804), and the limit block 802 is pushed out of the limit hole 804, thereby releasing the restriction on the downward movement of the sliding sleeve 1 506, and the sample soil is taken out from the lower end of the sampling tube 101.

[0050] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 10 and Figure 13As shown, as a preferred embodiment of the present invention, a guide groove 901 is provided in the sampling cylinder 101 along the length direction, and a sliding plate 902 is slidably connected in the guide groove 901. One end of the sliding plate 902 passes through the sampling cylinder 101, and a compression spring three 904 is fixed to the other end of the sampling cylinder 101. The end of the compression spring three 904 is fixed in the guide groove 901, and a plurality of avoidance openings 903 are provided on the sliding plate 902.

[0051] In an embodiment of the present invention, when the outer drill bit 102 is screwed into the lower end of the sampling tube 101, the outer drill bit 102 presses against the lower end of the sliding plate 902, the compression spring three 904 is in a compressed state, the avoidance opening 903 is misaligned with the limiting hole 804, and the sliding plate 902 blocks the limiting hole 804 to prevent soil from entering the limiting hole 804; when taking out the soil sample in the storage cavity 105, the outer drill bit 102 is unscrewed from the lower end of the sampling tube 101, and the compression spring three 904 pushes the sliding plate 902 to move downward. After the sliding plate 902 moves downward, the avoidance opening 903 coincides with the limiting hole 804. At this time, the limiting hole 804 is opened, and the transmission wire shaft 702 and the limiting block 802 are controlled through the limiting hole 804.

[0052] The above embodiment of the present invention provides a drilling and sampling device for geological exploration. When in use, the inner drill bit 104 and the outer drill bit 102 form a complete drill bit. The second motor 111 drives the rotating sleeve 110 to rotate. The rotating sleeve 110 drives the sampling barrel 101 to rotate. The sampling barrel 101 drives the outer drill bit 102 and the sliding shaft 103 to rotate. The sliding shaft 103 drives the inner drill bit 104 to rotate, thereby causing the outer drill bit 102 and the inner drill bit 104 to rotate synchronously. The lifting mechanism 2 drives the guide block 109 to move downward. The guide block 109 drives the rotating sleeve 110 to move downward. The rotating sleeve 110 drives the sampling barrel 101 to move downward. The sampling barrel 101 extends into the ground through the outer drill bit 102 and the inner drill bit 104.

[0053] When the outer drill bit 102 reaches the first sampling depth, the telescopic mechanism 4 drives the sliding shaft 103 to move upward, the sliding shaft 103 drives the ratchet bar 601 to move upward, the ratchet bar 601 drives the meshing teeth 604, the slider 603 and the sliding sleeve 1 506 to move upward, the sliding sleeve 1 506 overcomes the elastic force of the tension spring 505 and moves upward, the sliding sleeve 1 506 drives the spacer ring 106 to move upward through the connecting shaft 1 501, and then the spacer ring 106 and the sliding shaft 103 move upward at the same time, and the sliding shaft 103 drives the inner drill bit 104 to separate from the outer drill bit 102. As the sampling tube 101 moves downward and rotates, soil enters the receiving chamber 105 through the hollow portion in the middle of the outer drill bit 102. The soil is located between the spacer ring 106 and the second spacer ring 107. The limiting assembly 8 limits the downward movement of the sliding sleeve 106. The sliding sleeve 106 limits the downward movement of the spacer ring 106 via the connecting shaft 1 501. The telescopic mechanism 4 drives the sliding shaft 103 downward. The sliding shaft 103 drives the inner drill bit 104 downward and resets. The downwardly moving inner drill bit 104 pushes out the excess soil in the receiving chamber 105, thereby completing the first soil sampling.

[0054] When the outer drill bit 102 reaches the second sampling depth, the telescopic mechanism 4 drives the sliding shaft 103 to move upward, the sliding shaft 103 drives the ratchet bar 601 to move upward, the ratchet bar 601 drives the meshing teeth 604, the slider 603 and the sliding sleeve 1 506 to move upward, the sliding sleeve 1 506 overcomes the elastic force of the tension spring 505 and pushes the sliding sleeve 2 507 upward, the sliding sleeve 2 507 drives the spacer ring 2 107 to move upward through the connecting shaft 2 502, thereby causing the spacer ring 106, the spacer ring 2 107 and the sliding shaft 103 to move upward at the same time, and the sliding shaft 103 drives the inner drill bit 104 to separate from the outer drill bit 102, and the sampling tube 106 is pulled upward. 101 moves downward and rotates, and the soil enters the receiving chamber 105 through the hollow part in the middle of the outer drill bit 102. The soil is located between the second spacer ring 107 and the third spacer ring 108. The limiting component 8 limits the downward movement of the sliding sleeve 1 506, and the sliding sleeve 1 506 limits the downward movement of the sliding sleeve 2 507. The sliding sleeve 2 507 limits the downward movement of the spacer ring 2 107 through the connecting shaft 2 502. The telescopic mechanism 4 drives the sliding shaft 103 to move downward, and the sliding shaft 103 drives the inner drill bit 104 to move downward and reset. The downward moving inner drill bit 104 pushes out the excess soil in the receiving chamber 105, thereby completing the second soil sampling;

[0055] When the outer drill bit 102 reaches the third sampling depth, the telescopic mechanism 4 drives the sliding shaft 103 to move upward, the sliding shaft 103 drives the ratchet bar 601 to move upward, the ratchet bar 601 drives the meshing teeth 604, the slider 603 and the sliding sleeve 1 506 to move upward, the sliding sleeve 1 506 overcomes the elastic force of the tension spring 505 and pushes the sliding sleeve 2 507 and the sliding sleeve 3 508 upward, the sliding sleeve 3 508 drives the spacer ring 3 108 to move upward through the connecting shaft 3 503, thereby making the spacer ring 106, the spacer ring 2 107, the spacer ring 3 108 and the sliding shaft 103 move upward at the same time, and the sliding shaft 103 drives the inner drill bit 104 to separate from the outer drill bit 102. As the sampling As the cylinder 101 moves downward and rotates, the soil enters the receiving chamber 105 through the hollow portion in the middle of the outer drill bit 102. The soil is located below the spacer ring 3 108. The limiting assembly 8 limits the downward movement of the sliding sleeve 1 506. The sliding sleeve 1 506 limits the downward movement of the sliding sleeve 2 507. The sliding sleeve 2 507 limits the downward movement of the sliding sleeve 3 508. The sliding sleeve 3 508 limits the downward movement of the spacer ring 3 108 through the connecting shaft 3 503. The telescopic mechanism 4 drives the sliding shaft 103 to move downward. The sliding shaft 103 drives the inner drill bit 104 to move downward and reset. The downwardly moving inner drill bit 104 pushes out the excess soil in the receiving chamber 105, thereby completing the third soil sampling.

[0056] After the sampling is completed, when the soil needs to be taken out from the storage chamber 105, the outer drill bit 102 is unscrewed from the lower end of the sampling tube 101, and the transmission wire shaft 702 is rotated. The transmission wire shaft 702 drives the slider 701 to move through threaded transmission, pushing the slider 701 to overcome the elastic force of the compression spring 1 605 and drive the slider 603 to move. The slider 603 drives the meshing teeth 604 away from the ratchet bar 601, and the meshing teeth 604 do not engage with the ratchet bar 601. Then, the limit block 802 is pushed and the limit block 802 is pushed out of the limit hole 804, thereby releasing the restriction on the downward movement of the sliding sleeve 1 506, and the sample soil is taken out from the lower end of the sampling tube 101.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drilling sampling device for geological exploration, comprising a sampling barrel (101) and a guide block (109), characterized in that: Also includes: A rotating sleeve (110) rotatably connected to the lower end of the guide block (109), and a second motor (111) fixed to the upper end of the guide block (109), wherein the rotating end of the second motor (111) is connected to the rotating sleeve (110); The lower end of the sampling tube (101) is threadedly connected to an outer drill bit (102), and a sliding shaft (103) is slidably connected to the inside of the sampling tube (101) along the length direction. The lower end of the sliding shaft (103) is fixed with an inner drill bit (104), and the inner drill bit (104) and the outer drill bit (102) constitute a complete drill bit; The guide block (109) is provided with a telescopic mechanism (4), and the telescopic mechanism (4) is used to drive the sliding shaft (103) to move relative to the sampling cylinder (101); A receiving chamber (105) is provided at the lower end of the sampling tube (101), and a spacer ring (106), a spacer ring (107) and a spacer ring (108) are slidably connected in sequence from top to bottom in the receiving chamber (105). A transmission mechanism (5) is provided in the sampling tube (101), and when the sliding shaft (103) moves up and down relative to the sampling tube (101), the transmission mechanism (5) drives the spacer ring (106), the spacer ring (107) and the spacer ring (108) to move upward in sequence.

2. The drilling and sampling equipment for geological exploration according to claim 1, characterized in that: The lifting mechanism (2) further comprises a support frame (201), and a guide groove (202) provided on the support frame (201) along the length direction, a screw rod (204) being rotatably connected in the guide groove (202), a motor 1 (203) being fixed at the upper end of the support frame (201), a rotating end of the motor 1 (203) being connected to the screw rod (204), the guide block (109) being slidably connected in the guide groove (202), and the screw rod (204) being threadedly connected to the guide block (109).

3. The drilling and sampling equipment for geological exploration according to claim 1, characterized in that: The telescopic mechanism (4) comprises two guide shafts (401) vertically slidably connected to the guide block (109), a guide ring (402) being fixed at the lower end of the two guide shafts (401), a hydraulic cylinder (403) being fixed at the lower end of the guide block (109), the telescopic end of the hydraulic cylinder (403) being connected to the guide ring (402), a drive shaft (404) being slidably connected in the length direction inside the rotating sleeve (110), a side ear (405) being fixed on the side wall of the drive shaft (404), the side ear (405) penetrating the side wall of the rotating sleeve (110) and being slidably connected to the inner wall of the guide ring (402), and the lower end of the drive shaft (404) being connected to the upper end of the sliding shaft (103) via a bolt.

4. The drilling and sampling equipment for geological exploration according to claim 3, characterized in that: The lower end of the rotating sleeve (110) is threadedly connected to an extension sleeve (301), the lower end of the extension sleeve (301) is threadedly connected to the upper end of the sampling tube (101), and an extension shaft (302) is slidably connected in the extension sleeve (301) along the length direction, one end of the extension shaft (302) is connected to the driving shaft (404) by a bolt, and the other end of the extension shaft (302) is connected to the sliding shaft (103) by a bolt.

5. The drilling and sampling equipment for geological exploration according to claim 1, characterized in that: The transmission mechanism (5) includes a connecting shaft 1 (501) fixed at the upper end of a spacer ring 1 (106), a connecting shaft 2 (502) fixed at the upper end of a spacer ring 2 (107), and a connecting shaft 3 (503) fixed at the upper end of a spacer ring 3 (108). The upper portion of the sampling tube (101) is provided with a mounting cavity (504). The upper ends of the connecting shaft 1 (501), the connecting shaft 2 (502) and the connecting shaft 3 (503) are all extended into the mounting cavity (504). The upper end of the connecting shaft 1 (501) is fixed with a sliding sleeve 1 (506), the upper end of the connecting shaft 2 (502) is fixed with a sliding sleeve 2 (507), and the sliding sleeve 2 (507) is located above the sliding sleeve 1 (506). The upper end of the connecting shaft three (503) is fixed with a sliding sleeve three (508), and the sliding sleeve three (508) is located above the sliding sleeve two (507). The lower ends of the sliding sleeve one (506), the sliding sleeve two (507), and the sliding sleeve three (508) are all fixed with tension springs (505), and the lower ends of the plurality of tension springs (505) are all fixed at the lower end of the mounting cavity (504). The sliding shaft (103) is provided with a one-way pushing component (6), and when the sliding shaft (103) moves up and down, the one-way pushing component (6) drives the sliding sleeve one (506) to move upward. The sliding sleeve one (506) is provided with a limiting component (8), and the limiting component (8) is used to limit the sliding sleeve one (506) from moving downward.

6. The drilling and sampling equipment for geological exploration according to claim 5, characterized in that: The one-way pushing component (6) includes a ratchet bar (601) arranged on the side wall of the sliding shaft (103), and a sliding groove (602) horizontally arranged in the sliding sleeve (506), a slider (603) is slidably connected in the sliding groove (602), one end of the slider (603) is fixed with an engaging tooth (604), and the engaging tooth (604) is engaged with the ratchet bar (601), and the other end of the slider (603) is fixed with a compression spring (605), and the compression spring (605) is arranged in the sliding groove (602).

7. The drilling and sampling equipment for geological exploration according to claim 6, characterized in that: The limiting component (8) includes a second slide groove (801) horizontally arranged on the first slide sleeve (506), and a plurality of limiting holes (804) arranged on the side wall of the sampling tube (101), wherein the second slide groove (801) is slidably connected to a limiting block (802), one end of the limiting block (802) cooperates with the limiting hole (804), and the other end of the limiting block (802) is fixed with a second compression spring (803), and the end of the second compression spring (803) is fixed in the second slide groove (801).

8. The drilling and sampling equipment for geological exploration according to claim 7, characterized in that: A push slider (701) is slidably connected in the sliding groove (602), and a transmission wire shaft (702) is rotatably connected to the pushing slider (701), and the transmission wire shaft (702) is threadedly connected to the sliding sleeve (506).

9. The drilling and sampling equipment for geological exploration according to claim 7, characterized in that: A guide groove (901) is provided in the sampling tube (101) along the length direction, and a sliding plate (902) is slidably connected in the guide groove (901). One end of the sliding plate (902) passes through the sampling tube (101), and a compression spring three (904) is fixed to the other end of the sampling tube (101). The end of the compression spring three (904) is fixed in the guide groove (901), and a plurality of avoidance openings (903) are provided on the sliding plate (902).

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