Rock core drilling and sampling device for engineering detection and operation method of rock core drilling and sampling device

Abstract

The invention belongs to the technical field of rock core drilling and sampling, and particularly relates to a rock core drilling and sampling device for engineering detection and an operation method of the rock core drilling and sampling device. Comprising a base, a drill rod is arranged on the base, a sampling rod is fixedly connected to the bottom end of the drill rod, a drill bit is fixedly connected to the bottom end of the sampling rod, a first opening and a second opening are formed in one side of the sampling rod and communicate with an inner cavity of the sampling rod, a first plugging assembly is arranged at the first opening, and a second plugging assembly is arranged at the second opening. A second plugging assembly is arranged at the second opening, a bottom plate is fixedly connected to the interior of an inner cavity of the sampling rod, a rotating disc is arranged above the bottom plate, and sampling pipes are evenly placed in the rotating disc; through structures such as the first motor, the first sleeve, the second sleeve, the third sleeve, the rotating disc and the sampling pipe, soil at multiple target depths can be sampled in the one-time drilling process, the tedious process of repeated drilling and sampling is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rock core sampling, in particular to a rock core sampling device for engineering detection and an operating method thereof. Background Art

[0002] Rock core sampling equipment is a tool used to extract samples from rocks or soil for experimental analysis or research; the equipment is usually composed of machine tools, motors, oil pumps, chucks, etc., uses a drill bit to drill holes underground, transports samples to the ground through pipes, and uses a chuck to clamp the samples, and finally obtains a complete geological sample; rock core sampling equipment is widely used in petroleum, geological exploration, construction, roads and railways due to its complete sampling, convenience for analysis and experiments, flexibility and adjustability. It is used to obtain information such as sediment lithology and hydrocarbon and gas content, judge the quality of reservoirs, and ensure the stability of basic geology.

[0003] In the prior art, most rock core sampling devices are often limited to collecting soil from a single target depth layer when performing sampling tasks. This means that when sampling and analyzing soil at multiple different depths, operators need to spend a lot of time and energy to achieve this goal by repeatedly operating the equipment to perform multiple drilling operations. This process is not only inefficient, but also increases labor costs and operation time. Although there are some advanced devices on the market that can achieve multi-depth one-time sampling, it is difficult for such equipment to effectively isolate soil samples collected at different depths, resulting in cross-contamination of soil samples at various depths during the drilling and extraction process, which has an adverse effect on the accuracy of subsequent experimental analysis results.

[0004] To this end, the present invention provides a rock core sampling device for engineering detection and an operating method thereof. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art and solve the problem that most rock core sampling devices in the prior art are often limited to collecting soil at a single target depth layer when performing sampling tasks, which means that when sampling and analyzing soil at multiple different depths, operators need to spend a lot of time and energy to achieve this goal by repeatedly operating the equipment to perform multiple drilling operations. This process is not only inefficient, but also increases labor costs and operation time. Although there are some advanced devices on the market that can achieve multi-depth one-time sampling, it is difficult for such equipment to effectively isolate soil samples collected at different depths, resulting in cross-contamination of soil samples at various depths during drilling and extraction, which has an adverse effect on the accuracy of subsequent experimental analysis results. The present invention proposes a rock core sampling device for engineering detection and an operating method thereof.

[0006] The technical solution applicable to the present invention for solving its technical problem is: a rock core sampling device for engineering inspection described in the present invention comprises a base, a drill rod is provided on the base, a sampling rod is fixedly connected to the bottom end of the drill rod, a drill bit is fixedly connected to the bottom end of the sampling rod, an opening one and an opening two are provided on one side of the sampling rod, both the opening one and the opening two are connected to the inner cavity of the sampling rod, a plugging component one is provided at the opening one, a plugging component two is provided at the opening two, a bottom plate is fixedly connected to the inner cavity of the sampling rod, a turntable is provided above the bottom plate, sampling tubes are evenly placed in the turntable, a rotating component is provided between the bottom of the turntable and the top of the bottom plate, and a soil sampling component is provided above the turntable.

[0007] Preferably, the soil sampling assembly comprises a motor 1, a sleeve 1, a sleeve 2 and a sleeve 3, a motor 1 is fixedly mounted on the inner cavity wall of the sampling rod, a gear 1 is fixedly connected to the output end of the motor 1, a sleeve 1 is arranged above the turntable, support shafts are fixedly connected to both sides of the outer wall of the sleeve 1, the support shafts are rotatably connected to the inner cavity wall of the sampling rod, a gear 2 is fixedly connected to one of the support shafts, the gear 2 is meshingly connected to the gear 1, a sleeve 3 is arranged on the inner side of the sleeve 1, the sleeve 3 is matched with the opening 1, and a sleeve 3 is arranged on the side of the sleeve 3 away from the opening 1 Sleeve two, a gear ring is fixedly connected to the outer wall of sleeve two, an L-shaped ear plate is fixedly connected to the end of sleeve one, motor two is fixedly installed on the L-shaped ear plate, gear three is fixedly connected to the output end of motor two, gear three is meshingly connected with the gear ring, a reciprocating spiral groove is provided on the inner wall of sleeve one, a slider is movably connected on the outer wall of sleeve three, the slider is slidably connected to the reciprocating spiral groove, a plurality of limit holes are evenly provided in sleeve two, a limit rod is slidably connected in the limit hole, one end of the limit rod extends to the outside of the limit hole and is fixedly connected to sleeve three.

[0008] Preferably, a mounting plate is slidably connected in the inner cavity of sleeve two, and a connecting ring is provided at one end of sleeve three close to sleeve two, and the connecting ring is fixedly connected to the limiting rod, and the connecting ring and the mounting plate are fixedly connected by a connecting rod, and an electric push rod is fixedly installed on the mounting plate, and the output end of the electric push rod extends into the inner cavity of sleeve three and is fixedly connected to a push plate.

[0009] Preferably, the rotating assembly includes a dividing wheel, motor three and a shift rod, the bottom of the turntable is fixedly connected with a dividing wheel, the dividing wheel is rotatably connected to the base plate, the top of the base plate is fixedly mounted with motor three, the output end of motor three is fixedly connected with a connecting rod, the end of the connecting rod away from motor three is fixedly connected with the shift rod, and the shift rod is adapted to the dividing wheel.

[0010] Preferably, the blocking component 1 includes an electromagnet, a baffle 1 and a permanent magnet, the top of the inner wall of the opening 1 is fixedly connected with the electromagnet and a guide rod, the guide rod is slidably connected with a baffle 1, the top of the baffle 1 is fixedly connected with a permanent magnet, a spring 1 is fixedly connected between the electromagnet and the permanent magnet, and the spring is set on the guide rod.

[0011] Preferably, the second sealing component includes a second spring and a second baffle, a T-slot is provided at the bottom of the second opening, a second baffle is slidably connected in the T-slot, the top of the second baffle extends to the outside of the T-slot, and a second spring is fixedly connected between the second baffle and the inner cavity wall of the T-slot.

[0012] Preferably, a limiting groove 1 is evenly provided at the center of the inner wall of the sleeve three, an airbag 1 is fixedly connected to the inner side wall of the limiting groove 1, a limiting block is slidably connected in the limiting groove 1, the limiting block is fitted with the airbag 1, an arc-shaped pressure plate is fixedly connected to the side of the limiting block away from the airbag 1, a spring 3 is fixedly connected between the limiting block and the limiting groove 1, a limiting groove 2 is evenly provided on the inner cavity wall of the sleeve three away from the sleeve two, an airbag 2 is fixedly connected to the inner wall of the limiting groove 2, a fan-shaped plate is slidably connected in the limiting groove 2, the fan-shaped plate is fitted with the airbag 2, a spring 4 is fixedly connected between the fan-shaped plate and the limiting groove 2, an annular cavity is provided on the side of the sleeve three close to the sleeve two, airway 1 and airway 2 are evenly provided on the annular cavity, the airway 1 is connected to the airbag 1, the airway 2 is connected to the airbag 2, an air pump is fixedly installed on the side of the sleeve three close to the sleeve two, and the air pump is connected to the annular cavity.

[0013] Preferably, placement grooves are evenly arranged on the turntable, the placement grooves correspond to the second opening, a groove is arranged at the inner bottom of the placement groove, the groove is adapted to the sampling tube, and rubber strips are evenly arranged on the inner wall of the groove.

[0014] Preferably, an annular weir plate is provided above the turntable, and the annular weir plate is fixedly connected to the inner cavity wall of the sampling rod.

[0015] An operating method for a rock core sampling device for engineering detection, the operating method is applicable to the rock core sampling device for engineering detection described above, and the operating method comprises the following steps: S1: Before drilling, the staff opens the second opening and places multiple sampling tubes on the turntable after marking them. After completing the above operations, the staff controls the rotation of the drill bit while the drill rod drives the sampling rod and the drill bit to move downward together; S2: When the drill bit with the sampling rod reaches the first sampling depth, the staff controls the plugging component 1 on the opening 1 to open, and makes the soil sampling component extend out of the opening 1 to collect soil at the first sampling depth. After the collection is completed, the soil sampling component is reset, and the collected soil is transferred to the sampling tube on the turntable. The plugging component 1 plugs the opening 1, and the drill bit continues to rotate downward until the second sampling depth is reached, and the above operation is repeated; S3: After collecting soil at multiple target depths, the staff manipulates the sampling rod to rise and stop. When the drill bit leaves the soil, the staff opens the sealing component 2 at the second opening, takes out the sampling tubes on the turntable one by one, and cleans the inside of the sampling rod.

[0016] The beneficial effects of the present invention are as follows: 1. The rock core sampling device for engineering inspection and the operating method thereof described in the present invention realize the sampling of soil at multiple target depths in one drilling process through structures such as motor one, sleeve one, sleeve two, sleeve three, turntable and sampling tube, avoids the tedious process of repeated drilling and sampling, and improves work efficiency.

[0017] 2. The rock core sampling device for engineering inspection and the operating method thereof described in the present invention can drive the arc pressure plate and the fan-shaped plate to slide out of the limit groove 1 and the limit groove 2 through the air pump in cooperation with the air bag 1 and the air bag 2, so as to compact the soil collected in the sleeve 3, cut off the connection between the sleeve 3 and the external soil, and cooperate with the push plate to play the role of sealing the sleeve 3. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a stereogram of the present invention as a whole; Figure 2 is a partial cross-sectional view of the sampling rod of the present invention; Figure 3 yes Figure 2 A partial enlarged view of the middle part; Figure 4 yes Figure 2 A partial enlarged view of point B in the middle; Figure 5 yes Figure 2 A partial enlarged view of point C in the middle; Figure 6 yes Figure 5 A partial enlarged view of point D in the middle; Figure 7 It is a schematic diagram of a sleeve of the present invention; Figure 8 It is an exploded view of the second position of the sleeve of the present invention; Fig. 9 It is an exploded view of one part of the sleeve of the present invention; Fig.10 It is an exploded view of the indexing wheel of the present invention; Fig.11 It is an exploded view of the turntable of the present invention; Fig.12 is a schematic diagram of a sector plate of the present invention; In the figure: 1, base; 2, drill rod; 3, sampling rod; 4, drill bit; 5, opening 1; 6, electromagnet; 7, guide rod; 8, spring 1; 9, baffle 1; 10, permanent magnet; 11, opening 2; 12, spring 2; 13, baffle 2; 14, motor 1; 15, gear 1; 16, gear 2; 17, sleeve 1; 18, support shaft; 19, L-shaped ear plate; 20, motor 2; 21, gear 3; 22, gear ring; 23, sleeve 2; 24, limit hole; 25, limit rod; 26, annular cavity; 27, mounting plate; 28, connecting rod; 29, connecting ring; 3 0. Electric push rod; 31. Push plate; 32. Reciprocating spiral groove; 33. Sleeve three; 34. Slider; 35. Limit groove one; 36. Air bag one; 37. Limit block; 38. Arc pressure plate; 39. Spring three; 40. Airway one; 41. Limit groove two; 42. Air bag two; 43. Fan plate; 44. Spring four; 45. Airway two; 46. Air pump; 47. Bottom plate; 48. Indexing wheel; 49. Turntable; 50. Motor three; 51. Connecting rod; 52. Push rod; 53. Placement groove; 54. Groove; 55. Rubber strip; 56. Sampling tube; 57. Annular weir plate. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] like Figure 1-Figure 12As shown, a rock core sampling device for engineering inspection described in an embodiment of the present invention comprises a base 1, a drill rod 2 is provided on the base 1, a sampling rod 3 is fixedly connected to the bottom end of the drill rod 2, a drill bit 4 is fixedly connected to the bottom end of the sampling rod 3, an opening 1 5 and an opening 2 11 are provided on one side of the sampling rod 3, both the opening 1 5 and the opening 2 11 are communicated with the inner cavity of the sampling rod 3, a plugging component 1 is provided at the opening 1 5, a plugging component 2 is provided at the opening 2 11, a bottom plate 47 is fixedly connected to the inner cavity of the sampling rod 3, a turntable 49 is provided above the bottom plate 47, sampling tubes 56 are evenly placed in the turntable 49, a rotating component is provided between the bottom of the turntable 49 and the top of the bottom plate 47, and a soil sampling component is provided above the turntable 49. When working, before drilling, the staff opens the opening 11, and places a plurality of sampling tubes 56 on the turntable 49 after marking them. After completing the above operations, the staff controls the rotation of the drill bit 4 while the drill rod 2 drives the sampling rod 3 and the drill bit 4 to move downward together. When the drill bit 4 brings the sampling rod 3 to the first sampling depth, the staff controls the blocking component 1 on the opening 5 to open, and makes the soil sampling component extend out of the opening 5 to collect the soil at the first sampling depth. After the collection is completed, the soil sampling component is reset, the blocking component 1 blocks the opening 5, and then the soil sampling component transfers the sampled soil into the sampling tube 56, and drives the turntable 49 to rotate through the rotating component, so that an empty The sampling tube 56 rotates again to the bottom of the soil sampling assembly, so that the soil sampling assembly can be transferred after collecting the soil at the next target depth. Then the drill bit 4 continues to rotate downward until it reaches the second sampling depth, and the above operation is repeated. After collecting soil at multiple depths, the staff controls the sampling rod 3 to rise and stop. When the drill bit 4 leaves the soil, the sealing assembly 2 at the opening 11 is opened, and the sampling tubes 56 on the turntable 49 are taken out one by one. Through the above structure, the soil at multiple target depths can be sampled during one drilling process, avoiding the tedious process of repeated drilling and sampling, improving work efficiency, and effectively solving the problem of most rock core sampling in the prior art. When the device is performing sampling tasks, it is often limited to collecting soil from a single target depth layer. This means that when sampling and analyzing soil at multiple different depths, the operator needs to spend a lot of time and energy to achieve this goal by repeatedly operating the equipment to perform multiple drilling operations. This process is not only inefficient, but also increases labor costs and operation time. Although there are some advanced devices on the market that can achieve multi-depth one-time sampling, it is difficult for such equipment to effectively isolate soil samples collected at different depths, resulting in cross-contamination of soil samples at various depths during the drilling and extraction process, which has an adverse effect on the accuracy of subsequent experimental analysis results.

[0022] The soil sampling assembly includes a motor 14, a sleeve 17, a sleeve 23 and a sleeve 33. The motor 14 is fixedly installed on the inner cavity wall of the sampling rod 3. The output end of the motor 14 is fixedly connected to a gear 15. A sleeve 17 is arranged above the turntable 49. Both sides of the outer wall of the sleeve 17 are fixedly connected to support shafts 18. The support shafts 18 are rotatably connected to the inner cavity wall of the sampling rod 3. One of the support shafts 18 is fixedly connected to a gear 2 16. The gear 2 16 is meshed with the gear 15. A sleeve 33 is arranged on the inner side of the sleeve 17. The sleeve 33 is adapted to the opening 15 and the sleeve 33 is away from the opening 15. A sleeve 23 is provided on one side, a gear ring 22 is fixedly connected to the outer wall of the sleeve 23, an L-shaped ear plate 19 is fixedly connected to the end of the sleeve 17, a motor 20 is fixedly installed on the L-shaped ear plate 19, a gear 3 21 is fixedly connected to the output end of the motor 20, the gear 3 21 is meshed with the gear ring 22, a reciprocating spiral groove 32 is provided on the inner wall of the sleeve 17, a slider 34 is movably connected to the outer wall of the sleeve 3 33, the slider 34 is slidably connected to the reciprocating spiral groove 32, a plurality of limiting holes 24 are evenly provided in the sleeve 23, a limiting rod 25 is slidably connected in the limiting hole 24, and one of the limiting rods 25 When the sampling rod 3 reaches the target depth, the sealing component 1 is opened, and the motor 20 drives the gear 3 21 to rotate, so that the gear ring 22 drives the sleeve 23 to rotate, and then the limiting rod 25 drives the sleeve 33 to rotate. Through the sliding cooperation between the slider 34 provided on the sleeve 33 and the reciprocating spiral groove 32 on the sleeve 17, the sleeve 33 slides out from the opening 15 and penetrates into the soil outside the sampling rod 3 to complete the soil collection at the target depth. When the sleeve 33 completes the collection and slides back into the sampling rod 3, the electric The motor 14 starts and drives the gear 15 to rotate, so that the gear 2 16 drives the sleeve 17 to rotate ninety degrees, and then the sleeve 3 33 rotates ninety degrees, and the soil in the sleeve 3 33 is sent into the corresponding sampling tube 56. After the soil transfer is completed, the motor 14 reverses and drives the sleeve 3 33 to reset, and drives the turntable 49 to rotate through the rotating assembly, so that an empty sampling tube 56 rotates to the bottom of the sleeve 3 33 again, so that the sleeve 3 33 can collect the soil of the next target depth and then transfer it, which effectively avoids the cross contamination between the soil collected at different depths.

[0023] A mounting plate 27 is slidably connected in the inner cavity of the sleeve 23, and a connecting ring 29 is provided at one end of the sleeve 33 close to the sleeve 23. The connecting ring 29 is fixedly connected to the limit rod 25, and the connecting ring 29 and the mounting plate 27 are fixedly connected by a connecting rod 28. An electric push rod 30 is fixedly installed on the mounting plate 27, and the output end of the electric push rod 30 extends into the inner cavity of the sleeve 33 and is fixedly connected to a push plate 31; when working, when the motor 14 drives the sleeve 33 to rotate 90 degrees, it is ready to transfer the collected soil to the corresponding sampling tube 56, the electric push rod 30 is started, so that the push plate 31 drives the soil in the sleeve three 33 to move downward and completely transfer it to the sampling tube 56. The electric push rod 30 cooperates with the push plate 31 not only to quickly transfer the soil, but also to scrape the inner wall of the sleeve three 33 to avoid residual soil in the sleeve three 33. When the staff subsequently takes out the sampling tube 56 from the turntable 49, they only need to remove the top layer of soil in each sampling tube 56 to prevent mutual contamination between soils collected at different depths.

[0024] The rotating assembly includes a dividing wheel 48, a motor three 50 and a lever 52. The dividing wheel 48 is fixedly connected to the bottom of the turntable 49, and the dividing wheel 48 is rotatably connected to the bottom plate 47. The motor three 50 is fixedly installed on the top of the bottom plate 47. The output end of the motor three 50 is fixedly connected to a connecting rod 51, and the end of the connecting rod 51 away from the motor three 50 is fixedly connected to the lever 52, and the lever 52 is adapted to the dividing wheel 48. During operation, when the soil transfer of the sleeve three 33 is completed, the motor three 50 is started and drives the lever 52 on the connecting rod 51 to rotate, so that the lever 52 drives the dividing wheel 48 to rotate, until the lever 52 leaves the dividing wheel 48, the dividing wheel 48 stops, and an empty sampling tube 56 rotates to the bottom of the sleeve three 33 to correspond to it. This reciprocating process can realize the transfer of soil of different depths to the corresponding sampling tube 56 to avoid cross contamination.

[0025] The sealing component 1 includes an electromagnet 6, a baffle 9 and a permanent magnet 10. The top of the inner wall of the opening 5 is fixedly connected with the electromagnet 6 and the guide rod 7. The baffle 9 is slidably connected to the guide rod 7. The top of the baffle 9 is fixedly connected with the permanent magnet 10. A spring 8 is fixedly connected between the electromagnet 6 and the permanent magnet 10. The spring 8 is sleeved on the guide rod 7. During operation, when it is necessary to open the opening 5, the electromagnet 6 is energized to generate suction between the electromagnet 6 and the permanent magnet 10, thereby causing the baffle 9 to slide upward along the guide rod 7 and compress the spring 8. When the soil at the target depth is collected, the electromagnet 6 is de-energized, and the baffle 9 is reset under the elastic force of the spring 8 to prevent the drill bit 4 from continuing to penetrate the soil and causing soil to enter the interior of the sampling rod 3 from the opening 5 to cause pollution.

[0026] The second sealing component includes a spring 12 and a baffle 13. A T-slot is provided at the bottom of the opening 11. The baffle 13 is slidably connected in the T-slot. The top of the baffle 13 extends to the outside of the T-slot. The spring 12 is fixedly connected between the baffle 13 and the inner cavity wall of the T-slot. During operation, when the entire sampling work is completed and the drill bit 4 leaves the soil, the staff slides the baffle 13 downward and compresses the spring 12, opens the opening 11, takes out the sampling tubes 56 one by one, loosens the baffle 13, and the baffle 13 is reset under the elastic force of the spring 12 to re-seal the opening 11 to prevent soil from entering the sampling rod 3 from the opening 11 during drilling and causing pollution.

[0027] A limiting groove 35 is evenly arranged at the center of the inner wall of the sleeve three 33, and an airbag 36 is fixedly connected to the inner side wall of the limiting groove 35. A limiting block 37 is slidably connected in the limiting groove 35, and the limiting block 37 fits with the airbag 36. An arc-shaped pressure plate 38 is fixedly connected to the side of the limiting block 37 away from the airbag 36, and a spring 39 is fixedly connected between the limiting block 37 and the limiting groove 35. The inner cavity wall of the sleeve three 33 away from the sleeve two 23 is evenly arranged. A limiting groove 2 41 is evenly provided, an airbag 2 42 is fixedly connected to the inner wall of the limiting groove 2 41, a fan-shaped plate 43 is slidably connected in the limiting groove 2 41, the fan-shaped plate 43 is fitted with the airbag 2 42, a spring 44 is fixedly connected between the fan-shaped plate 43 and the limiting groove 2 41, an annular cavity 26 is provided on the side of the sleeve 3 33 close to the sleeve 2 23, an airway 1 40 and an airway 2 45 are evenly provided on the annular cavity 26, and the airway 1 40 is connected to the airbag 1 36 , the air channel 2 45 is connected to the air bag 2 42, and an air pump 46 is fixedly installed on the side of the sleeve 3 33 close to the sleeve 2 23, and the air pump 46 is connected to the annular cavity 26; when working, when the sleeve 3 33 slides out of the opening 1 5 to complete soil collection, the air pump 46 is started, and air is blown to the air bag 1 36 and the air bag 2 42 through the annular cavity 26, the air channel 1 40 and the air channel 2 45, so that the air bag 1 36 and the air bag 2 42 expand, respectively driving the arc pressure plate 3 8 and the fan-shaped plate 43 slide out of the limit groove 1 35 and the limit groove 2 41, and the soil collected in the sleeve three 33 can be compacted by the arc-shaped pressure plate 38 to facilitate the subsequent transfer to the sampling tube 56. The connection between the sleeve three 33 and the external soil can be cut off by the fan-shaped plate 43, which is convenient for the compaction of the arc-shaped pressure plate 38. At the same time, it cooperates with the push plate 31 to seal the sleeve three 33 to prevent the soil from slipping out of the sleeve three 33 when the sleeve three 33 is reset.

[0028] Placement grooves 53 are evenly provided on the turntable 49, and the placement grooves 53 correspond to the second opening 11. A groove 54 is provided at the inner bottom of the placement groove 53, and the groove 54 is adapted to the sampling tube 56. Rubber strips 55 are evenly provided on the inner wall of the groove 54. During operation, by providing the placement grooves 53 corresponding to the second opening 11 on the turntable 49, it is convenient for the staff to take and place the sampling tube 56. By providing the grooves 54 and the rubber strips 55 on the inner side of the placement grooves 53, the sampling tube 56 can be stably placed on the turntable 49 to prevent the soil from falling after the sampling tube 56 is dumped.

[0029] An annular weir plate 57 is provided above the turntable 49, and the annular weir plate 57 is fixedly connected to the inner cavity wall of the sampling rod 3; when working, by providing the annular weir plate 57 above the turntable 49, it is prevented that the soil falls onto the turntable 49 below when the sleeve 33 is reset after collecting the soil, thereby contaminating the sampling tube 56.

[0030] An operating method for a rock core sampling device for engineering detection, the operating method is applicable to the above-mentioned rock core sampling device for engineering detection, and the operating method comprises the following steps: S1: Before drilling, the staff opens the second opening 11 and places a plurality of sampling tubes 56 on the turntable 49 after marking them. After completing the above operations, the staff controls the drill bit 4 to rotate while the drill rod 2 drives the sampling rod 3 and the drill bit 4 to move downward together; S2: When the drill bit 4 brings the sampling rod 3 to the first sampling depth, the staff controls the plugging assembly 1 on the opening 5 to open, and makes the soil sampling assembly extend out of the opening 5 to collect soil at the first sampling depth. After the collection is completed, the soil sampling assembly is reset, and the collected soil is transferred to the sampling tube 56 on the turntable 49. The plugging assembly 1 plugs the opening 5, and the drill bit 4 continues to rotate downward until the second sampling depth is reached, and the above operation is repeated; S3: After collecting soil at multiple target depths, the staff controls the sampling rod 3 to rise and stop. When the drill bit 4 leaves the soil, the staff opens the sealing component 2 at the opening 11, takes out the sampling tubes 56 on the turntable 49 one by one, and cleans the inside of the sampling rod 3.

[0031] Working principle: before drilling, the staff opens opening 11 and marks a plurality of sampling tubes 56 and places them on the turntable 49. After completing the above operations, the staff controls the rotation of the drill bit 4 while the drill rod 2 drives the sampling rod 3 and the drill bit 4 to move downward together. When the drill bit 4 reaches the first sampling depth with the sampling rod 3, the staff controls the blocking component 1 on the opening 5 to open, and makes the soil sampling component extend out of the opening 5 to collect the soil at the first sampling depth. After the collection is completed, the soil sampling component is reset, and the blocking component 1 blocks the opening 5, and the drill bit 4 continues to rotate downward until the second sampling depth is reached. The above operations are repeated and repeated. After collecting the soil at multiple depths, the staff controls the sampling rod 3 to rise and stop. When the drill bit 4 leaves After drilling the soil, open the plugging component 2 at the opening 11, and take out the sampling tubes 56 on the turntable 49 one by one. Through the above structure, it is possible to sample the soil at multiple target depths in one drilling process, avoiding the tedious process of repeated drilling and sampling, and improving work efficiency. When the sampling rod 3 reaches the target depth, the plugging component 1 is opened, and the motor 20 drives the gear 3 21 to rotate, so that the gear ring 22 drives the sleeve 23 to rotate, and then the limit rod 25 drives the sleeve 3 33 to rotate. Through the sliding cooperation between the slider 34 provided on the sleeve 3 33 and the reciprocating spiral groove 32 on the sleeve 17, the sleeve 3 33 slides out of the opening 5 and penetrates into the soil outside the sampling rod 3, completing the soil collection at the target depth. When the sleeve After the three 33 has completed the collection and slid back into the sampling rod 3, the motor 14 is started and drives the gear 15 to rotate, so that the gear 2 16 drives the sleeve 17 to rotate ninety degrees, and then the sleeve three 33 rotates ninety degrees, and the soil in the sleeve three 33 is sent into the corresponding sampling tube 56. After the soil transfer is completed, the motor 14 reverses and drives the sleeve three 33 to reset, and drives the turntable 49 to rotate through the rotating assembly, so that an empty sampling tube 56 rotates to the bottom of the sleeve three 33 again, so that the sleeve three 33 can transfer the soil after collecting the next target depth, effectively avoiding the cross contamination between the soil collected at different depths. When the motor 14 drives the sleeve three 33 to rotate ninety degrees to prepare to transfer the collected soil to the corresponding sampling tube When the soil in the sampling tube 56 is inside, the electric push rod 30 is started, so that the push plate 31 drives the soil in the sleeve three 33 to move downward and be completely transferred into the sampling tube 56. The electric push rod 30 cooperates with the push plate 31 to not only quickly transfer the soil, but also clean the inner wall of the sleeve three 33 to avoid residual soil in the sleeve three 33. When the staff subsequently takes out the sampling tube 56 from the turntable 49, they only need to remove the top layer of soil in each sampling tube 56 to prevent mutual contamination between soils collected at different depths. When the soil transfer of the sleeve three 33 is completed, the motor three 50 is started and drives the lever 52 on the connecting rod 51 to rotate, so that the lever 52 drives the indexing wheel 48 to rotate until the lever 52 leaves the indexing wheel 48 and the indexing wheel 48 stops.An empty sampling tube 56 rotates to the bottom of the sleeve 33 to correspond to it, and this reciprocating process can realize the transfer of soil at different depths to the corresponding sampling tube 56 to avoid cross contamination. When it is necessary to open the opening 5, the electromagnet 6 is energized to generate suction between the electromagnet 6 and the permanent magnet 10, thereby causing the baffle 9 to slide upward along the guide rod 7 and compress the spring 8. When the soil collection at the target depth is completed, the electromagnet 6 is powered off, and the baffle 9 is reset under the elastic force of the spring 8 to prevent the drill bit 4 from continuing to penetrate the soil. In the case of contamination caused by the entry of the sampling rod 3 from the opening 15, when the entire sampling work is completed and the drill bit 4 leaves the soil, the staff slides the baffle 2 13 downward and compresses the spring 2 12, opens the opening 11, takes out the sampling tubes 56 one by one, loosens the baffle 2 13, and the baffle 2 13 is reset under the elastic force of the spring 2 12, and the opening 2 11 is resealed to prevent the soil from entering the sampling rod 3 from the opening 2 11 during drilling and causing contamination. When the sleeve 3 33 slides out of the opening 15 to complete soil collection, the air pump 46 is started and the air pump 46 is opened through the ring. The cavity 26, the air passage 1 40 and the air passage 2 45 blow air into the airbag 1 36 and the airbag 2 42, so that the airbag 1 36 and the airbag 2 42 expand, and drive the arc-shaped pressing plate 38 and the fan plate 43 to slide out of the limiting groove 1 35 and the limiting groove 2 41 respectively. The arc-shaped pressing plate 38 can be used to compact the soil collected in the sleeve 33, so as to facilitate the subsequent transfer to the sampling tube 56. The fan plate 43 can cut off the connection between the sleeve 33 and the external soil, which is convenient for the compaction of the arc-shaped pressing plate 38. At the same time, it cooperates with the push plate 31 to play the role of blocking the sleeve 33, so as to avoid the sleeve When the sleeve 33 is reset, the soil slides off the sleeve 33. By setting a placement groove 53 corresponding to the opening 2 11 on the turntable 49, it is convenient for the staff to take and place the sampling tube 56. By setting a groove 54 and a rubber strip 55 on the inner side of the placement groove 53, it is convenient to stably place the sampling tube 56 on the turntable 49 to prevent the soil from falling after the sampling tube 56 is dumped. By setting an annular weir plate 57 above the turntable 49, it is prevented that the soil falls onto the turntable 49 below when the sleeve 33 is reset after collecting the soil, causing pollution to the sampling tube 56.

[0032] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rock core sampling device for engineering inspection, characterized in that: The invention comprises a base (1), wherein a drill rod (2) is provided on the base (1), a sampling rod (3) is fixedly connected to the bottom end of the drill rod (2), a drill bit (4) is fixedly connected to the bottom end of the sampling rod (3), an opening (5) and an opening (11) are provided on one side of the sampling rod (3), both the opening (5) and the opening (11) are communicated with the inner cavity of the sampling rod (3), a blocking component (1) is provided at the opening (5), and a blocking component (2) is provided at the opening (11), a bottom plate (47) is fixedly connected to the inner cavity of the sampling rod (3), a rotating disk (49) is provided above the bottom plate (47), sampling tubes (56) are evenly placed in the rotating disk (49), a rotating component is provided between the bottom of the rotating disk (49) and the top of the bottom plate (47), and a soil sampling component is provided above the rotating disk (49).

2. A rock core sampling device for engineering inspection according to claim 1, characterized in that: The soil sampling assembly comprises a motor 1 (14), a sleeve 1 (17), a sleeve 2 (23) and a sleeve 3 (33). The motor 1 (14) is fixedly mounted on the inner cavity wall of the sampling rod (3). The output end of the motor 1 (14) is fixedly connected to a gear 1 (15). A sleeve 1 (17) is provided above the rotating disk (49). Both sides of the outer wall of the sleeve 1 (17) are fixedly connected to support shafts (18). The support shafts (18) are rotatably connected to the inner cavity wall of the sampling rod (3). One of the support shafts (18) is fixedly connected to a gear 2 (16). The gear 2 (16) is meshingly connected to the gear 1 (15). A sleeve 3 (33) is provided on the inner side of the sleeve 1 (17). The sleeve 3 (33) is adapted to fit the opening 1 (5). A sleeve 2 (23) is provided on the side of the sleeve 3 (33) away from the opening 1 (5). 3), a toothed ring (22) is fixedly connected to the outer wall of the sleeve 2 (23), an L-shaped ear plate (19) is fixedly connected to the end of the sleeve 1 (17), a motor 2 (20) is fixedly mounted on the L-shaped ear plate (19), a gear 3 (21) is fixedly connected to the output end of the motor 2 (20), the gear 3 (21) is meshingly connected with the toothed ring (22), a reciprocating spiral groove (32) is formed on the inner wall of the sleeve 1 (17), a slider (34) is movably connected to the outer wall of the sleeve 3 (33), the slider (34) is slidably connected to the reciprocating spiral groove (32), a plurality of limiting holes (24) are evenly formed in the sleeve 2 (23), a limiting rod (25) is slidably connected in the limiting hole (24), one end of the limiting rod (25) extends to the outside of the limiting hole (24) and is fixedly connected to the sleeve 3 (33).

3. A rock core sampling device for engineering inspection according to claim 2, characterized in that: A mounting plate (27) is slidably connected in the inner cavity of the second sleeve (23); a connecting ring (29) is provided at one end of the third sleeve (33) close to the second sleeve (23); the connecting ring (29) is fixedly connected to the limit rod (25); the connecting ring (29) and the mounting plate (27) are fixedly connected via a connecting rod (28); an electric push rod (30) is fixedly mounted on the mounting plate (27); an output end of the electric push rod (30) extends into the inner cavity of the third sleeve (33) and is fixedly connected to a push plate (31).

4. A rock core sampling device for engineering inspection according to claim 3, characterized in that: The rotating assembly comprises a dividing wheel (48), a third motor (50) and a lever (52); the dividing wheel (48) is fixedly connected to the bottom of the rotating disk (49); the dividing wheel (48) is rotatably connected to the bottom plate (47); the third motor (50) is fixedly mounted on the top of the bottom plate (47); a connecting rod (51) is fixedly connected to the output end of the third motor (50); an end of the connecting rod (51) away from the third motor (50) is fixedly connected to the lever (52); and the lever (52) is adapted to the dividing wheel (48).

5. The rock core sampling device for engineering inspection according to claim 4 is characterized in that: The blocking component 1 comprises an electromagnet (6), a baffle 1 (9) and a permanent magnet (10); the top of the inner wall of the opening 1 (5) is fixedly connected to the electromagnet (6) and the guide rod (7); the baffle 1 (9) is slidably connected to the guide rod (7); the top of the baffle 1 (9) is fixedly connected to the permanent magnet (10); a spring 1 (8) is fixedly connected between the electromagnet (6) and the permanent magnet (10); and the spring 1 (8) is sleeved on the guide rod (7).

6. A rock core sampling device for engineering inspection according to claim 5, characterized in that: The second blocking component comprises a second spring (12) and a second baffle plate (13); a T-shaped groove is provided at the bottom of the second opening (11); a second baffle plate (13) is slidably connected in the T-shaped groove; a top of the second baffle plate (13) extends to the outside of the T-shaped groove; and a second spring (12) is fixedly connected between the second baffle plate (13) and the inner cavity wall of the T-shaped groove.

7. A rock core sampling device for engineering inspection according to claim 6, characterized in that: A limiting groove (35) is uniformly provided at the center of the inner wall of the sleeve three (33), an airbag (36) is fixedly connected to the inner wall of the limiting groove (35), a limiting block (37) is slidably connected inside the limiting groove (35), the limiting block (37) is in contact with the airbag (36), an arc-shaped pressure plate (38) is fixedly connected to the side of the limiting block (37) away from the airbag (36), a spring (39) is fixedly connected between the limiting block (37) and the limiting groove (35), a limiting groove (41) is uniformly provided on the side of the inner cavity wall of the sleeve three (33) away from the sleeve two (23), and an airbag (42) is fixedly connected to the inner wall of the limiting groove (41), A fan-shaped plate (43) is slidably connected in the second limiting groove (41), and the fan-shaped plate (43) is fitted with the second airbag (42). A spring four (44) is fixedly connected between the fan-shaped plate (43) and the second limiting groove (41). An annular cavity (26) is provided on the side of the third sleeve (33) close to the second sleeve (23), and an air channel one (40) and an air channel two (45) are evenly opened on the annular cavity (26). The air channel one (40) is connected to the first airbag (36), and the air channel two (45) is connected to the second airbag (42). An air pump (46) is fixedly installed on the side of the third sleeve (33) close to the second sleeve (23), and the air pump (46) is connected to the annular cavity (26).

8. The rock core sampling device for engineering inspection according to claim 7 is characterized in that: The rotating disk (49) is evenly provided with placement grooves (53), the placement grooves (53) corresponding to the second opening (11), the inner bottom of the placement groove (53) is provided with a groove (54), the groove (54) is adapted to fit the sampling tube (56), and rubber strips (55) are evenly provided on the inner wall of the groove (54).

9. A rock core sampling device for engineering inspection according to claim 8, characterized in that: An annular weir plate (57) is provided above the rotating disk (49), and the annular weir plate (57) is fixedly connected to the inner cavity wall of the sampling rod (3).

10. An operating method for a rock core sampling device for engineering inspection, characterized in that: The operating method is applicable to a rock core sampling device for engineering inspection as described in any one of claims 1 to 9, and the operating method comprises the following steps: S1: Before drilling, the staff opens the second opening (11) and places a plurality of sampling tubes (56) on the turntable (49) after marking them. After completing the above operations, the staff controls the drill bit (4) to rotate while the drill rod (2) drives the sampling rod (3) and the drill bit (4) to move downward together; S2: When the drill bit (4) with the sampling rod (3) reaches the first sampling depth, the staff controls the plugging assembly 1 on the opening 1 (5) to open, and makes the soil collecting assembly extend out of the opening 1 (5) to collect soil at the first sampling depth. After the collection is completed, the soil collecting assembly is reset, and the collected soil is transferred to the sampling tube (56) on the rotating disk (49). The plugging assembly 1 plugs the opening 1 (5), and the drill bit (4) continues to rotate downward until the second sampling depth is reached, and the above operation is repeated; S3: After collecting soil at multiple target depths, the staff controls the sampling rod (3) to rise and stop. When the drill bit (4) leaves the soil, the staff opens the second plugging assembly at the second opening (11), takes out the sampling tubes (56) on the turntable (49) one by one, and cleans the inside of the sampling rod (3).

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