A soil extractor

Abstract

The present application relates to the technical field of soil-taking equipment, and provides a soil-taking device, including a mounting frame, a drill rod, a drill barrel, a push assembly, and a driving assembly. The mounting frame is slidably mounted with a lifting seat, the drill rod is vertically arranged, one end of the drill rod is rotatably connected to the lifting seat, and the other end is connected to the drill barrel, the end of the drill barrel away from the drill rod is open and forms an opening for soil samples to enter and exit, and the push assembly is arranged in the drill barrel for pushing the soil sample out of the drill barrel; the driving assembly includes a driving screw, a driving motor, and a driving member, the two ends of the driving screw are rotatably mounted on the mounting frame, the driving screw is passed through the lifting seat and is threadedly connected to the lifting seat, the driving motor is arranged on the mounting frame, and the output shaft of the driving motor is coaxially connected to the driving screw; the driving member is provided with the drill rod to drive the drill rod to rotate. A soil-taking device of the present application can improve soil-taking efficiency and operation convenience.

Description

Technical Field

[0001] The present application relates to the technical field of earth-getting equipment, and in particular to an earth-getting device. Background Art

[0002] The soil sampler is a device used to pick up the original soil of the test soil as a sample. The main purpose is to understand the properties of the soil. This equipment plays an important role in engineering geological exploration and investigation work, helping workers to obtain the physical and mechanical performance indicators of the foundation soil.

[0003] In the prior art, the soil sampler includes a drill rod and a drill barrel. One end of the drill rod is connected to the drill barrel, and the other end can be connected to a force rod or a motor. The end of the drill barrel away from the drill rod is open and forms an opening for soil samples to enter and exit. During soil sampling operations, the drill rod is kept in a vertical state, the drill rod is driven to rotate and press down, so that the drill barrel can be inserted into the soil layer to squeeze the soil sample into the drill barrel, and then the force rod is pulled upward to extract the soil sample.

[0004] However, when this type of soil extractor is used for soil extraction, the operator needs to rotate the drill rod and press it down at the same time. This process makes it difficult to ensure that the drill rod is always in a vertical state. Once the drill rod is inserted into the soil layer at an angle, it not only increases the difficulty of inserting the drill tube into the soil layer, but also increases the difficulty of pulling the drill tube out, which is inconvenient to operate. In addition, since the soil sample extracted from the drill tube has a relatively large degree of compaction, when the soil sample needs to be removed, the operator needs to repeatedly knock the drill tube to vibrate the drill tube so that the soil sample can be separated from the drill tube, resulting in low overall soil extraction efficiency, so further improvement is needed. Summary of the invention

[0005] In order to improve soil collecting efficiency and operation convenience, the present application provides a soil collecting device.

[0006] The soil extractor provided in this application adopts the following technical solution: A soil sampler comprises a mounting frame, a drill rod, a drill barrel, a pushing assembly and a driving assembly, wherein the mounting frame is slidably mounted with a lifting seat, the drill rod is vertically arranged, one end of the drill rod is rotatably connected to the lifting seat, and the other end is connected to the drill barrel, the end of the drill barrel away from the drill rod is open and forms an opening for soil samples to enter and exit, the pushing assembly is arranged in the drill barrel for pushing the soil sample out of the drill barrel; the driving assembly comprises a driving screw, a driving motor and a driving member, both ends of the driving screw are rotatably mounted on the mounting frame, the driving screw is penetrated through the lifting seat and is threadedly connected to the lifting seat, the driving motor is arranged on the mounting frame, and the output shaft of the driving motor is coaxially connected to the driving screw; the driving member is provided with the drill rod for driving the drill rod to rotate.

[0007] By adopting the above technical solution, when taking soil, the mounting frame is moved to the designated soil taking position, and then the lifting seat is driven downward by rotating the driving screw, thereby driving the drill barrel to be inserted into the soil layer. During this process, the driving member forces the drill rod to rotate, so that the drill barrel can be smoothly inserted into the soil layer; after the soil sample is squeezed into the drill barrel, the lifting seat is lifted by driving the driving screw in the opposite direction, and the drill barrel can be pulled out. The setting of the mounting frame enables the drill rod to be kept in a vertical state as much as possible, thereby improving the operational convenience of the overall structure; after the drill barrel is pulled out of the soil layer, the soil sample in the drill barrel is pushed out by the action of the jacking assembly, which greatly improves the convenience of separation between the soil sample and the drill barrel, thereby improving the soil taking efficiency of the overall structure.

[0008] Optionally, a penetration groove is provided on the end surface of the drill rod away from the drill barrel, and the penetration groove is connected to the interior of the drill barrel; the push assembly includes a push plate and a push rod, the push plate is slidably installed in the drill barrel, one end of the push rod is connected to the push plate, and the other end is penetrated by the penetration groove, when the drill barrel is inserted into the soil layer, the soil sample forces the end of the push rod away from the push plate to extend out of the penetration groove; when the drill barrel is lifted off the soil layer, the mounting frame blocks the push rod to force the push plate to move to the opening of the drill barrel.

[0009] By adopting the above-mentioned technical scheme, through the arrangement of the push plate and the push rod, when the drill barrel is inserted into the soil layer, the push rod is squeezed by the soil sample and displaced upward, thereby forcing the push rod to extend out of the penetration groove away from one end of the push plate; when the drill barrel is pulled out of the soil layer, the push rod abuts against the mounting frame, and the drill barrel is continuously lifted, so that the push rod can be pushed into the penetration groove, thereby driving the push plate to move to the opening of the drill barrel, so as to squeeze the soil sample outward through the opening, thereby improving the operational convenience of taking out the soil sample.

[0010] Optionally, the side wall of the mounting frame is provided with a through hole for the drill rod to pass through, and the outer wall of the drill rod is provided with a guide groove, and the guide groove is wavy along the length direction of the drill rod; the driving member includes a guide column, one end of which is connected to the inner wall of the through hole, and the other end is inserted into the guide groove, and can slide in the guide groove.

[0011] By adopting the above-mentioned technical solution, the guide groove is wavy along the length direction of the drill rod, so that when the lifting seat drives the drill rod to rise or move downward, the guide column slides in the guide groove and pushes the drill rod to rotate back and forth through the inner wall of the guide groove, making it easier to insert the drill barrel into or pull it out of the soil layer.

[0012] Optionally, an anti-rotation groove is provided on the outer wall of the drill rod, and both ends of the anti-rotation groove are extended along the length direction of the drill rod. The anti-rotation groove is located on the side of the guide groove close to the drill barrel, and one end of the anti-rotation groove is connected to the guide groove; when the drill barrel is inserted into the soil layer, the guide column is located in the guide groove, and when the drill barrel is completely pulled out of the soil layer, the guide column is located in the anti-rotation groove.

[0013] By adopting the above technical solution, the anti-rotation chute and the guide chute cooperate to make the drill tube rotate back and forth when the drill tube is inserted into or pulled out of the soil layer, making it easier to insert or pull out the drill tube. When the drill tube is completely pulled out of the soil layer, the guide column moves to the anti-rotation chute, and the drill tube cannot rotate at this time, reducing the possibility of the soil sample in the drill tube being thrown out due to rotation, and improving the sampling stability.

[0014] Optionally, the mounting frame is provided with a collecting tray, and the top wall of the collecting tray is provided with a collecting groove for collecting soil samples; the mounting frame is provided with a translation assembly for driving the collecting tray to translate, and when the drill barrel is lifted off the soil layer, the translation assembly forces the collecting tray to move into the bottom of the drill barrel so that the opening of the drill barrel is opposite to the collecting groove.

[0015] By adopting the above technical solution, after the drill tube obtains the soil sample from the soil layer and is pulled out of the soil layer, the collection plate is forced to move to the bottom of the drill tube through the translation assembly, and then the soil sample in the drill tube is pushed out, so that the soil sample falls into the collection trough, thereby improving the convenience of soil sample collection and greatly improving the soil collection efficiency.

[0016] Optionally, a connecting strip is provided on the top wall of the collecting plate, and a sliding groove is formed on the mounting frame, and the connecting strip is slidably installed in the sliding groove, and the collecting plate is slidably installed on the mounting frame through the connecting strip; the translation assembly includes a guide seat and a return spring, the guide seat is slidably installed on the mounting frame and connected to the connecting strip, the guide seat is located on one side of the drill rod, and the side wall of the guide seat close to the drill rod is formed with a first guide surface, a second guide surface and a third guide surface from top to bottom, and the horizontal distance from the first guide surface to the drill rod is greater than the horizontal distance from the third guide surface to the drill rod; the return spring is installed between the guide seat and the mounting frame, and the return spring forces the guide seat to abut against the lifting seat, and when the first guide surface of the guide seat abuts against the lifting seat, the collecting plate moves into the bottom of the drill barrel, and when the third guide surface of the guide seat abuts against the lifting seat, the collecting plate moves out of the bottom of the drill barrel.

[0017] By adopting the above technical solution, under normal conditions (when the drill rod is not inserted into the soil layer), the lifting seat abuts against the first guide surface of the guide seat, and the collecting plate moves to the bottom of the drill tube. When performing soil extraction operations, the lifting seat is driven downward, forcing the lifting seat to move downward from the first guide surface and the second guide surface to the third guide surface in sequence, so that the collecting plate can be pushed away, so that the drill tube can be inserted into the soil layer, and the collecting plate is prevented from hindering the downward movement of the drill tube. After the drill tube takes the soil sample, the lifting seat is driven to lift up, forcing the drill tube to leave the soil layer. During the lifting process, the lifting seat is relocated to the first guide surface, and the collecting plate is relocated to the bottom of the drill tube under the action of the reset spring. At this time, the soil sample in the drill tube can be pushed out and the soil sample falls into the collection trough, which greatly improves the convenience of soil sample transfer.

[0018] Optionally, multiple collecting grooves are arranged around the central axis of the collecting plate, and the connecting strip includes a connecting part and a rotating part. The connecting part is slidably installed in the sliding groove, one end of the rotating part is rotatably connected to the connecting part, and the other end is connected to the center position of the top wall of the collecting plate, and the collecting plate is slidably and rotatably installed on the mounting frame through the connecting strip; a rotating assembly is provided between the mounting frame and the rotating part, and when the collecting plate moves out of the bottom of the drill barrel, the rotating assembly forces the collecting plate to rotate to switch the collecting groove.

[0019] By adopting the above technical solution, after the drill tube takes the soil sample, it is forced to lift up, and the collecting plate moves to the bottom of the drill tube under the action of the reset spring, and then the soil sample is pushed down to one of the collecting slots of the collecting plate. Then the drill tube is driven to insert into the soil layer again (the insertion depth of the drill tube this time is greater than the previous insertion depth). During the downward movement of the drill tube, the collecting plate is driven to rotate a certain angle through the rotating assembly to switch the next collecting slot, so that when the drill tube takes the soil sample again, the soil sample can be pushed down to the next collecting slot. This process is repeated, and soil layers of different depths can be sampled, and soil samples of different depths can be classified into different collection slots, which greatly improves the sampling efficiency.

[0020] Optionally, the rotating assembly includes a rotating ring gear, a rotating rack and a docking piece, the rotating ring gear is coaxially arranged on the outer peripheral wall of the rotating part, the rotating rack is installed on the side wall of the mounting frame, the length direction of the rotating rack is consistent with the displacement direction of the connecting bar, and the rotating ring gear and the rotating rack are engaged for transmission; the docking piece is arranged between the rotating ring gear and the rotating part, and when the collecting plate moves out of the bottom of the drill barrel, the docking piece forces the rotating ring gear and the rotating part to rotate synchronously; when the collecting plate moves into the bottom of the drill barrel, the docking piece forces the rotating ring gear and the rotating part to disconnect.

[0021] By adopting the above technical solution, the collection plate is driven to move out of the bottom of the drill barrel when the drill barrel moves downward. During the movement of the collection plate, meshing transmission occurs between the rotating gear ring and the rotating rack to drive the collection plate to rotate a certain angle, which is then used to switch the collection slot, thereby improving the convenience of switching the collection slot. When the drill barrel is lifted off the soil layer after obtaining the soil sample, the collection plate moves to the bottom of the drill barrel under the action of the reset spring. During this process, the docking piece forces the rotating gear ring and the rotating part to be disconnected, that is, during the process of the collection plate moving into the bottom of the drill barrel, the collection plate is in a non-rotating state, thereby accurately moving the next collection slot into the bottom of the drill barrel.

[0022] Optionally, an inner circumferential wall of the rotating gear ring is provided with an embedding groove, the embedding groove has a guide surface, the guide surface has a first point position and a second point position, the distance from the first point position to the center position of the rotating part is greater than the distance from the second point position to the center position of the rotating part; the docking part includes a docking column and a docking spring, the docking column is arranged in the embedding groove, the docking spring is installed between the docking column and the inner wall of the embedding groove, the docking spring forces the docking column to move toward the second point position, and forces the docking column to simultaneously abut against the guide surface and the outer circumferential wall of the rotating part, when the collecting plate moves out of the bottom of the drill tube, the rotating gear ring drives the rotating part to rotate synchronously through the docking column.

[0023] By adopting the above technical solution, the docking column moves toward the second point under the action of the docking spring, and abuts against the guide surface and the outer peripheral wall of the rotating part at the same time, so that when the collection plate moves out of the bottom of the drill tube, the rotating ring gear can drive the rotating part to rotate synchronously through the docking column, thereby driving the collection plate to rotate a certain angle. When the collection plate moves into the bottom of the drill tube, the rotating ring gear cannot drive the rotating part to rotate synchronously through the docking column, so that the collection plate cannot rotate during this process, so as to accurately move the next collection slot into the bottom of the drill tube.

[0024] Optionally, the mounting frame is slidably installed with a push rod, which is located at the top of the top push rod for the top push rod to abut against; the push rod is connected to a linkage assembly, and when the drill rod drives the top push rod to abut against the push rod and continues to lift the drill rod, the linkage assembly forces the push rod to push the top push rod downward.

[0025] By adopting the above-mentioned technical scheme, after the drill barrel for obtaining the soil sample is lifted out of the soil layer, the push rod abuts against the push rod, and the drill barrel continues to be lifted at this time. The push rod pushes the push rod downward under the action of the linkage assembly to push the push plate to the opening of the drill barrel; the setting of the push rod can reduce the lifting amount of the drill barrel, that is, reduce the height difference between the drill barrel and the collecting plate when the push plate is displaced to the opening, thereby reducing the possibility of the soil sample being scattered to other collecting slots when the soil sample is pushed out due to the excessive height difference between the drill barrel and the collecting plate, thereby improving the overall sampling accuracy.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the setting of the mounting frame, the jacking assembly and the driving assembly, when taking soil, the mounting frame is moved to the designated soil taking position, and then the lifting seat is driven downward by the rotation of the driving screw, thereby driving the drill tube to be inserted into the soil layer. During this process, the driving member forces the drill rod to rotate so that the drill tube can be smoothly inserted into the soil layer; after the soil sample is squeezed into the drill tube, the lifting seat is driven to be lifted by the reverse rotation of the driving screw, and the drill tube can be pulled out. The setting of the mounting frame enables the drill rod to be kept in a vertical state as much as possible, thereby improving the operational convenience of the overall structure; after the drill tube is pulled out of the soil layer, the soil sample in the drill tube is pushed out by the action of the jacking assembly, which greatly improves the convenience of separation between the soil sample and the drill tube, thereby improving the soil taking efficiency of the overall structure; 2. Through the setting of the guide seat and the return spring, under normal conditions (when the drill rod is not inserted into the soil layer), the lifting seat abuts against the first guide surface of the guide seat, and the collecting plate moves to the bottom of the drill barrel. When performing soil excavation operations, the lifting seat is driven to move downward, forcing the lifting seat to move downward from the first guide surface and the second guide surface to the third guide surface in sequence, so that the collecting plate can be pushed away, so that the drill barrel can be inserted into the soil layer, avoiding the collection plate from hindering the downward movement of the drill barrel. After the drill barrel takes the soil sample, the lifting seat is driven to lift, forcing the drill barrel to leave the soil layer. During the lifting process, the lifting seat is relocated to the first guide surface, and the collecting plate is relocated to the bottom of the drill barrel under the action of the return spring. At this time, the soil sample in the drill barrel can be pushed out and the soil sample falls into the collection trough, which greatly improves the convenience of soil sample transfer; 3. Through the setting of the rotating component, after the drill tube obtains the soil sample, the drill tube is forced to rise, and the collecting plate moves to the bottom of the drill tube under the action of the reset spring, and then the obtained soil sample is pushed into one of the collecting slots of the collecting plate. Then the drill tube is driven to insert into the soil layer again (the insertion depth of the drill tube this time is greater than the previous insertion depth). During the downward movement of the drill tube, the collecting plate is driven to rotate a certain angle through the rotating component to switch the next collecting slot, so that when the drill tube obtains the soil sample again, the soil sample can be pushed into the next collecting slot. This process is repeated, and soil layers of different depths can be sampled, and soil samples of different depths can be classified into different collection slots, which greatly improves the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of Example 1; Figure 2 is a partial cross-sectional view of the translation assembly embodied in Embodiment 1; Figure 3 is a partial cross-sectional view of the push assembly according to Embodiment 1; Figure 4 yes Figure 1The enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the structure of the guide slide groove and the anti-rotation slide groove in Example 2; Figure 6 yes Figure 5 The enlarged view of point B in the middle; Figure 7 is a partial cross-sectional view of a collection tray according to Embodiment 3; Figure 8 is a partial cross-sectional view of a rotating assembly according to Embodiment 3; Fig. 9 It is a partial cross-sectional view of the linkage assembly according to the fourth embodiment.

[0028] Explanation of the reference numerals: 1. mounting frame; 11. lifting seat; 111. rotating groove; 12. through hole; 13. sliding groove; 14. pushing rod; 15. walking wheel; 16. handle; 17. supporting rod; 171. force rod; 2. drill rod; 21. drill barrel; 211. opening; 22. through slide groove; 23. guide slide groove; 24. anti-rotation slide groove; 25. lifting slide groove; 3. pushing assembly; 31. pushing plate; 32. pushing rod; 321. anti-slip block; 4. driving assembly; 41. driving screw; 42. driving motor; 43. guide column; 44. driving gear; 45. driven gear; 451. rotating ring; 452. driving block ;5. Collecting plate;51. Collecting slot;52. Connecting strip;521. Connecting part;522. Rotating part;523. Limiting ring;6. Translation assembly;61. Guide seat;611. First guide surface;612. Second guide surface;613. Third guide surface;62. Reset spring;7. Rotating assembly;71. Rotating gear ring;711. Mounting groove;712. Guide surface;713. First point position;714. Second point position;72. Rotating rack;73. Docking column;74. Docking spring;8. Linkage assembly;81. Linkage rod;82. Linkage gear;83. First linkage rack;84. Second linkage rack;85. Counterweight. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 -Attached Fig. 9 This application is described in further detail. Example 1

[0030] The embodiment of the present application discloses a soil sampler.

[0031] Reference Figure 1A soil extractor includes a mounting frame 1, a drill rod 2, a drill barrel 21, a push assembly 3 and a driving assembly 4. A plurality of walking wheels 15 are mounted at the bottom of the mounting frame 1, and a handle 16 is connected to the side wall of the mounting frame 1. The handle 16 is used to push the mounting frame 1 to move; a plurality of support rods 17 are mounted at the bottom of the mounting frame 1, and each support rod 17 is vertically arranged. The support rod 17 passes through the bottom wall of the mounting frame 1 and is threadedly connected to the mounting frame 1 (the thread of the support rod 17 is not shown in the figure); the support rod 17 is connected to a force rod 171 for driving the support rod 17 to rotate, so that the support rod 17 can abut against or lift off the ground.

[0032] Reference Figure 2 , Figure 3 A lifting seat 11 is slidably installed on the top of the mounting frame 1, and the drill rod 2 is vertically arranged. A rotation groove 111 is opened on the bottom wall of the lifting seat 11, and the upper end of the drill rod 2 is rotatably installed in the rotation groove 111 of the lifting seat 11, and the upper end surface of the drill rod 2 is kept flush with the top wall of the lifting seat 11; a through hole 12 is opened on the side wall of the mounting frame 1, and the lower end surface of the drill rod 2 passes through the through hole 12 and is fixedly connected to the top wall of the drill barrel 21. In this embodiment, the lower end of the drill barrel 21 is opened and forms an opening 211 for soil samples to enter and exit.

[0033] Reference Figure 2 , Figure 3 The driving assembly 4 includes a driving screw 41, a driving motor 42 and a driving member. The driving screw 41 is vertically arranged. Both ends of the driving screw 41 are rotatably mounted on the mounting frame 1. The driving screw 41 is located on one side of the drill rod 2. The driving screw 41 is penetrated by the lifting seat 11 and is threadedly connected with the lifting seat 11; the driving motor 42 is fixedly mounted on the top wall of the mounting frame 1, and the output shaft of the driving motor 42 is coaxially connected to the driving screw 41.

[0034] The driving member is provided with the drill rod 2 for driving the drill rod 2 to rotate. In the present embodiment, the driving member comprises a driving gear 44 and a driven gear 45. The driving gear 44 is coaxially fixed to the outer peripheral wall of the lower end of the driving screw 41. A rotating ring 451 is coaxially fixed to the bottom wall of the driven gear 45. The rotating ring 451 is rotatably mounted on the side wall of the mounting frame 1. The driven gear 45 is rotatably mounted on the mounting frame 1 through the rotating ring 451. The driving gear 44 and the driven gear 45 are meshed for transmission.

[0035] Reference Figure 3 , Figure 4In this embodiment, the drill rod 2 is penetrated by the driven gear 45, and a plurality of lifting slots 25 are provided on the outer peripheral wall of the drill rod 2. The plurality of lifting slots 25 are arranged at intervals around the central axis of the drill rod 2, and both ends of each lifting slot 25 are extended along the length direction of the drill rod 2. A plurality of driving blocks 452 are fixedly installed on the inner peripheral wall of the driven gear 45, and the plurality of driving blocks 452 are arranged corresponding to the plurality of lifting slots 25. Each driving block 452 is embedded in the corresponding lifting slot 25, so that the driven gear 45 and the drill rod 2 are circumferentially linked (that is, when the driven gear 45 rotates, it can drive the drill rod 2 to rotate synchronously).

[0036] Reference Figure 2 , Figure 3 The end surface of the drill rod 2 away from the drill barrel 21 is provided with a penetration groove 22, and the penetration groove 22 is connected to the inside of the drill barrel 21; the pushing assembly 3 is arranged in the drill barrel 21 to push the soil sample out of the drill barrel 21; in this embodiment, the pushing assembly 3 includes a pushing plate 31 and a pushing rod 32, the pushing plate 31 is slidably installed in the drill barrel 21, one end of the pushing rod 32 is connected to the pushing plate 31, and the other end is penetrated by the penetration groove 22. When the drill barrel 21 is inserted into the soil layer, the soil sample forces the end of the pushing rod 32 away from the pushing plate 31 to extend out of the penetration groove 22.

[0037] An anti-slip block 321 is fixedly installed on the end surface of the push rod 32 away from the push plate 31, and the outer diameter of the anti-slip block 321 is larger than the outer diameter of the push rod 32. In this embodiment, when the drill barrel 21 is lifted off the soil layer, the top wall of the mounting frame 1 is used to block the anti-slip block 321 of the push rod 32, and when the top wall of the lifting seat 11 abuts against the top wall of the mounting frame 1, the push rod 32 pushes the push plate 31 to move to the opening 211 of the drill barrel 21.

[0038] Reference Figure 1 , Figure 3 The mounting frame 1 is provided with a sliding groove 13, and the sliding groove 13 is located on the side of the drill rod 2 away from the driving screw 41; the mounting frame 1 is provided with a collecting tray 5, and the top wall of the collecting tray 5 is connected with a connecting bar 52, and the connecting bar 52 is vertically arranged. The lower end of the connecting bar 52 is fixedly installed on the top wall of the collecting tray 5, and the upper end of the connecting bar 52 is slidably installed in the sliding groove 13, and the collecting tray 5 is slidably installed on the mounting frame 1 through the connecting bar 52; the top wall of the collecting tray 5 is provided with a collecting groove 51 for collecting soil samples, and the mounting frame 1 is provided with a translation assembly 6 for driving the collecting tray 5 to translate. When the drill barrel 21 is lifted off the soil layer, the translation assembly 6 forces the collecting tray 5 to move into the bottom of the drill barrel 21 so that the opening 211 of the drill barrel 21 is opposite to the collecting groove 51.

[0039] Reference Figure 2 , Figure 3The translation assembly 6 includes a guide seat 61 and a return spring 62. The guide seat 61 is slidably installed on the mounting frame 1 and is located on the side of the drill rod 2 away from the driving screw 41. The upper end surface of the connecting strip 52 passes through the sliding groove 13 and is fixedly connected to the bottom wall of the guide seat 61; the side wall of the guide seat 61 close to the drill rod 2 forms a first guide surface 611, a second guide surface 612 and a third guide surface 613 from top to bottom. The horizontal distance from the first guide surface 611 to the drill rod 2 is greater than the horizontal distance from the third guide surface 613 to the drill rod 2. The second guide surface 612 is inclined to connect the first guide surface 611 and the third guide surface 613.

[0040] A plurality of return springs 62 are provided, and the plurality of return springs 62 are arranged at intervals along the height direction of the guide seat 61. One end of each return spring 62 is fixedly mounted on the side wall of the guide seat 61 away from the drill rod 2, and the other end is fixedly connected to the side wall of the mounting frame 1. The return spring 62 forces the guide seat 61 to always abut against the lifting seat 11; when the first guide surface 611 of the guide seat 61 abuts against the lifting seat 11, the collecting plate 5 moves into the bottom of the drill barrel 21, and when the third guide surface 613 of the guide seat 61 abuts against the lifting seat 11, the collecting plate 5 moves out of the bottom of the drill barrel 21.

[0041] The implementation principle of Example 1 of the present application is as follows: when taking soil, the mounting frame 1 is moved to the designated soil taking position, and then the lifting seat 11 is driven to move downward by rotating the driving screw 41. During the downward movement of the lifting seat 11, the lifting seat 11 is transferred from the first guide surface 611 to the third guide surface 613, thereby squeezing the collecting plate 5 open, forcing the collecting plate 5 to move out of the bottom of the drill barrel 21 so that the drill barrel 21 can be inserted into the soil layer.

[0042] After the drill tube 21 is inserted into the soil layer to obtain the soil sample, the lifting seat 11 is driven to be lifted, so that the drill tube 21 is lifted off the soil layer. As the lifting seat 11 continues to be lifted, the lifting seat 11 is transferred from the third guide surface 613 to the first guide surface 611 again, and the collecting plate 5 moves to the bottom of the drill tube 21 under the action of the reset spring 62; the lifting seat 11 is continued to be lifted, forcing the top wall of the lifting seat 11 to abut against the top wall of the mounting frame 1 to push the push rod 32, so that the push plate 31 can squeeze the soil sample obtained in the drill tube 21 into the collecting groove 51 of the collecting plate 5, thereby greatly improving the soil taking efficiency of the overall structure. Example 2

[0043] The embodiment of the present application discloses a soil sampler.

[0044] The soil extractor disclosed in the embodiment of the present application is different from the embodiment 1 in that: Reference Figure 5 , Figure 6In this embodiment, a guide groove 23 is provided on the outer wall of the drill rod 2, and the guide groove 23 is wavy along the length direction of the drill rod 2. An anti-rotation groove 24 is provided on the outer wall of the drill rod 2, and both ends of the anti-rotation groove 24 are extended along the length direction of the drill rod 2. The anti-rotation groove 24 is located on the side of the guide groove 23 close to the drill barrel 21, and one end of the anti-rotation groove 24 is connected to the guide groove 23; the driving member includes a guide column 43, one end of the guide column 43 is fixedly connected to the inner wall of the penetration hole 12, and the other end is inserted into the guide groove 23, and can slide in the guide groove 23 and the anti-rotation groove 24. When the drill barrel 21 is inserted into the soil layer, the guide column 43 is located in the guide groove 23, and when the drill barrel 21 is completely pulled out of the soil layer, the guide column 43 is located in the anti-rotation groove 24.

[0045] It should be noted that, in this embodiment, there are multiple guide columns 43 (only one is shown in the figure), and the multiple guide columns 43 are arranged at intervals around the central axis of the drill rod 2, and each guide column 43 is fixedly connected to the inner wall of the penetration hole 12; the number of guide grooves 23 and the number of guide columns 43, the number of anti-rotation grooves 24 and the number of guide columns 43 are set correspondingly; in this design, multiple guide columns 43 are set to increase the contact area between the inner wall of the penetration hole 12 and the drill rod 2.

[0046] The implementation principle of the second embodiment of the present application is: through the cooperation of the anti-rotation chute 24 and the guide chute 23, the drill tube 21 can rotate back and forth when the drill tube 21 is inserted into or pulled out of the soil layer, so that the drill tube 21 is easier to insert or pull out of the soil layer. When the drill tube 21 is completely pulled out of the soil layer, the guide column 43 moves to the anti-rotation chute 24, and the drill tube 21 can no longer rotate, thereby reducing the possibility of the soil sample in the drill tube 21 being thrown out due to rotation, and improving the sampling stability. Example 3

[0047] The embodiment of the present application discloses a soil sampler.

[0048] The soil extractor disclosed in the embodiment of the present application is different from the embodiment 1 in that: Reference Figure 7 In this embodiment, the collecting tray 5 is arranged in a circular shape, and a plurality of collecting slots 51 are arranged, and the plurality of collecting slots 51 are arranged at intervals around the central axis of the collecting tray 5; the connecting bar 52 includes a connecting portion 521 and a rotating portion 522, the connecting portion 521 is slidably installed in the sliding slot 13, the upper end of the rotating portion 522 is rotatably connected to the lower end of the connecting portion 521, and the lower end of the rotating portion 522 is fixedly connected to the center position of the top wall of the collecting tray 5, and the collecting tray 5 is slidably and rotatably installed on the mounting frame 1 through the connecting bar 52.

[0049] Reference Figure 7 , Figure 8A rotating assembly 7 is arranged between the mounting frame 1 and the rotating part 522. When the collecting plate 5 moves out of the bottom of the drill tube 21, the rotating assembly 7 forces the collecting plate 5 to rotate to switch the collecting slot 51; the rotating assembly 7 includes a rotating ring gear 71, a rotating rack 72 and a docking piece. The rotating ring gear 71 is coaxially sleeved on the outer peripheral wall of the rotating part 522. Two limiting rings 523 are fixedly installed on the outer peripheral wall of the rotating part 522. The rotating ring gear 71 is located between the two limiting rings 523. The two limiting rings 523 are used to limit the sliding of the rotating ring gear 71 along the length direction of the rotating part 522; the rotating rack 72 is fixedly installed on the side wall of the mounting frame 1. The length direction of the rotating rack 72 is consistent with the displacement direction of the connecting bar 52. The rotating ring gear 71 and the rotating rack 72 are meshed for transmission.

[0050] The inner circumferential wall of the rotating gear ring 71 is provided with a plurality of embedding grooves 711, and the plurality of embedding grooves 711 are arranged at intervals around the central axis of the rotating gear ring 71, and each embedding groove 711 has a guide surface 712, and the guide surface 712 has a first point 713 and a second point 714, and the distance from the first point 713 to the center position of the rotating part 522 is greater than the distance from the second point 714 to the center position of the rotating part 522; there are a plurality of docking members and they are arranged corresponding to the plurality of embedding grooves 711, and each docking member is arranged in the corresponding embedding groove 711, and when the collecting plate 5 moves out of the bottom of the drill tube 21, the docking member forces the rotating gear ring 71 and the rotating part 522 to rotate synchronously; when the collecting plate 5 moves into the bottom of the drill tube 21, the docking member forces the rotating gear ring 71 and the rotating part 522 to disconnect.

[0051] Reference Figure 8 The docking member includes a docking column 73 and a docking spring 74. The docking column 73 is arranged in the embedding groove 711. One end of the docking spring 74 is fixedly connected to the inner wall of the embedding groove 711, and the other end is fixedly connected to the peripheral wall of the docking column 73. The docking spring 74 forces the docking column 73 to move toward the second point 714 and forces the docking column 73 to abut against the guide surface 712 and the outer peripheral wall of the rotating part 522 at the same time. When the collecting plate 5 moves out of the bottom of the drill tube 21, the rotating ring gear 71 drives the rotating part 522 to rotate synchronously through the docking column 73.

[0052] The implementation principle of Example 3 of the present application is as follows: after the drill tube 21 obtains the soil sample, the drill tube 21 is forced to be lifted away from the soil layer, and the collecting plate 5 moves into the bottom of the drill tube 21 under the action of the reset spring 62, and then the drill tube 21 is continuously lifted to push the obtained soil sample into one of the collecting slots 51 of the collecting plate 5. Then the drill tube 21 is driven to move downward, and during the downward movement of the drill tube 21, the collecting plate 5 moves out of the bottom of the drill tube 21, and the collecting plate 5 rotates a certain angle under the action of the rotating gear ring 71 and the rotating rack 72 to switch the next collecting slot 51; after the drill tube 21 is inserted into the soil layer (the insertion depth of the drill tube 21 this time is greater than the previous insertion depth) and the soil sample is obtained again, the drill tube 21 is driven to be lifted again, and the soil sample can be pushed down to the next collecting slot 51. In this way, soil layers of different depths can be sampled, and soil samples of different depths can be classified into different collecting slots 51, which greatly improves the sampling efficiency.

[0053] The docking post 73 moves toward the second point 714 under the action of the docking spring 74, and simultaneously abuts against the guide surface 712 and the outer peripheral wall of the rotating part 522, so that when the collection tray 5 moves out of the bottom of the drill tube 21, the rotating ring gear 71 can drive the rotating part 522 to rotate synchronously through the docking post 73, thereby driving the collection tray 5 to rotate a certain angle. When the collection tray 5 moves into the bottom of the drill tube 21, the rotating ring gear 71 cannot drive the rotating part 522 to rotate synchronously through the docking post 73, so that the collection tray 5 cannot rotate during this process, so as to accurately move the next collection slot 51 into the bottom of the drill tube 21, thereby improving the convenience of switching the collection slot 51. Example 4

[0054] The embodiment of the present application discloses a soil sampler.

[0055] The difference between the soil extractor disclosed in the embodiment of the present application and the embodiment 3 is that: Reference Fig. 9 In this embodiment, a push rod 14 is slidably installed on the top of the mounting frame 1, and the push rod 14 is vertically arranged. The push rod 14 is located at the top of the top push rod 32 for the top push rod 32 to abut against; the push rod 14 is connected to a linkage assembly 8. When the drill rod 2 drives the top push rod 32 to abut against the push rod 14 and continues to lift the drill rod 2, the linkage assembly 8 forces the push rod 14 to push the top push rod 32 downward.

[0056] The linkage assembly 8 includes a linkage rod 81, a linkage gear 82, a first linkage rack 83, a second linkage rack 84 and a counterweight 85. The linkage rod 81 is vertically arranged, slidably installed on the top of the mounting frame 1 and located on one side of the pushing rod 14, and the linkage rod 81 is located on the top of the lifting seat 11 for the lifting seat 11 to abut against; the linkage gear 82 is rotatably installed on the top of the mounting frame 1, the first linkage rack 83 is vertically arranged, and the first linkage rack 83 is fixedly installed on the side wall of the pushing rod 14, the second linkage rack 84 is vertically arranged, and the second linkage rack 84 is fixedly installed on the side wall of the linkage rod 81, and the linkage gear 82 and the first linkage rack 83, and the linkage gear 82 and the second linkage rack 84 are all meshed and transmitted.

[0057] The counterweight block 85 is fixedly installed on the side wall of the linkage rod 81 away from the second linkage rack 84. The counterweight block 85 normally abuts against the top wall of the mounting frame 1 under the action of its own weight, and forces the lower end surface of the linkage rod 81 to be lower than the lower end surface of the push rod 14. When the drill tube 21 for obtaining the soil sample is lifted off the soil layer and drives the push rod 32 to abut against the lower end surface of the push rod 14, the top wall of the lifting seat 11 abuts against the lower end surface of the linkage rod 81.

[0058] The implementation principle of Example 4 of the present application is as follows: after the drill tube 21 for obtaining the soil sample is lifted off the soil layer, the lifting seat 11 is continuously driven to be lifted, forcing the push rod 32 to abut against the lower end of the push rod 14. At this time, the lifting seat 11 is continuously lifted, and the lifting seat 11 pushes the linkage rod 81 to be lifted, thereby forcing the push rod 14 to push down the push rod 32, so as to push the push plate 31 to the opening 211 of the drill tube 21. The setting of the push rod 14 can reduce the lifting amount of the drill tube 21 when the collecting plate 5 moves into the bottom of the drill tube 21, that is, reduce the height difference between the drill tube 21 and the collecting plate 5 when the push plate 31 moves to the opening 211, thereby reducing the possibility that the soil sample is scattered to other collecting slots 51 when the soil sample is pushed out due to the excessive height difference between the drill tube 21 and the collecting plate 5, thereby improving the overall sampling accuracy.

[0059] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A soil sampler, characterized in that: The invention comprises a mounting frame (1), a drill rod (2), a drill barrel (21), a push assembly (3) and a driving assembly (4); the mounting frame (1) is slidably mounted with a lifting seat (11); the drill rod (2) is arranged vertically; one end of the drill rod (2) is rotatably connected to the lifting seat (11), and the other end is connected to the drill barrel (21); one end of the drill barrel (21) away from the drill rod (2) is open and forms an opening (211) for soil samples to enter and exit; the push assembly (3) is arranged in the drill barrel (21) for transferring soil The sample is pushed out of the drill tube (21); the driving assembly (4) comprises a driving screw (41), a driving motor (42) and a driving member, the two ends of the driving screw (41) are rotatably mounted on the mounting frame (1), the driving screw (41) is passed through the lifting seat (11) and is threadedly connected to the lifting seat (11), the driving motor (42) is arranged on the mounting frame (1), and the output shaft of the driving motor (42) is coaxially connected to the driving screw (41); the driving member is arranged on the drill rod (2) to drive the drill rod (2) to rotate.

2. The soil sampler according to claim 1, characterized in that: The end surface of the drill rod (2) away from the drill barrel (21) is provided with a through-slot (22), and the through-slot (22) is connected to the inside of the drill barrel (21); the push assembly (3) comprises a push plate (31) and a push rod (32), the push plate (31) is slidably installed in the drill barrel (21), one end of the push rod (32) is connected to the push plate (31), and the other end is penetrated by the through-slot (22), when the drill barrel (21) is inserted into the soil layer, the soil sample forces the end of the push rod (32) away from the push plate (31) to extend out of the through-slot (22); when the drill barrel (21) is lifted out of the soil layer, the mounting frame (1) blocks the push rod (32) to force the push plate (31) to move to the opening (211) of the drill barrel (21).

3. The soil sampler according to claim 1, characterized in that: The side wall of the mounting frame (1) is provided with a through hole (12) for the drill rod (2) to pass through, and the outer peripheral wall of the drill rod (2) is provided with a guide slot (23), and the guide slot (23) is wavy along the length direction of the drill rod (2); the driving member comprises a guide column (43), one end of the guide column (43) is connected to the inner wall of the through hole (12), and the other end is inserted into the guide slot (23) and can slide in the guide slot (23).

4. The soil sampler according to claim 3, characterized in that: The outer wall of the drill rod (2) is provided with an anti-rotation groove (24), and the two ends of the anti-rotation groove (24) are extended along the length direction of the drill rod (2), and the anti-rotation groove (24) is located on the side of the guide groove (23) close to the drill barrel (21), and one end of the anti-rotation groove (24) is connected to the guide groove (23); when the drill barrel (21) is inserted into the soil layer, the guide column (43) is located in the guide groove (23), and when the drill barrel (21) is completely pulled out of the soil layer, the guide column (43) is located in the anti-rotation groove (24).

5. The soil sampler according to claim 1, characterized in that: The mounting frame (1) is provided with a collecting tray (5), and a collecting groove (51) for collecting soil samples is provided on the top wall of the collecting tray (5); the mounting frame (1) is provided with a translation assembly (6) for driving the collecting tray (5) to translate, and when the drill tube (21) is lifted off the soil layer, the translation assembly (6) forces the collecting tray (5) to move into the bottom of the drill tube (21) so that the opening (211) of the drill tube (21) is directly opposite to the collecting groove (51).

6. The soil sampler according to claim 5, characterized in that: The top wall of the collecting tray (5) is provided with a connecting strip (52), the mounting frame (1) is provided with a sliding groove (13), the connecting strip (52) is slidably mounted in the sliding groove (13), and the collecting tray (5) is slidably mounted on the mounting frame (1) through the connecting strip (52); the translation assembly (6) comprises a guide seat (61) and a return spring (62), the guide seat (61) is slidably mounted on the mounting frame (1) and connected to the connecting strip (52), the guide seat (61) is located on one side of the drill rod (2), and the side wall of the guide seat (61) close to the drill rod (2) is formed from top to bottom in sequence with a first guide surface (611), a second guide surface (612), and a second guide surface (613). and a third guide surface (613), the horizontal distance from the first guide surface (611) to the drill rod (2) is greater than the horizontal distance from the third guide surface (613) to the drill rod (2); the return spring (62) is installed between the guide seat (61) and the mounting frame (1), the return spring (62) forces the guide seat (61) to abut against the lifting seat (11), when the first guide surface (611) of the guide seat (61) abuts against the lifting seat (11), the collection plate (5) moves into the bottom of the drill tube (21), when the third guide surface (613) of the guide seat (61) abuts against the lifting seat (11), the collection plate (5) moves out of the bottom of the drill tube (21).

7. The soil sampler according to claim 6, characterized in that: A plurality of collecting grooves (51) are arranged around the central axis of the collecting tray (5); the connecting strip (52) comprises a connecting portion (521) and a rotating portion (522); the connecting portion (521) is slidably mounted on the sliding groove (13); one end of the rotating portion (522) is rotatably connected to the connecting portion (521), and the other end is connected to the center position of the top wall of the collecting tray (5); the collecting tray (5) is slidably and rotatably mounted on the mounting frame (1) through the connecting strip (52); a rotating assembly (7) is arranged between the mounting frame (1) and the rotating portion (522); when the collecting tray (5) moves out of the bottom of the drill tube (21), the rotating assembly (7) forces the collecting tray (5) to rotate to switch the collecting groove (51).

8. The soil sampler according to claim 7, characterized in that: The rotating assembly (7) comprises a rotating ring gear (71), a rotating rack (72) and a docking piece. The rotating ring gear (71) is coaxially arranged on the outer peripheral wall of the rotating part (522), the rotating rack (72) is installed on the side wall of the mounting frame (1), the length direction of the rotating rack (72) is consistent with the displacement direction of the connecting bar (52), and the rotating ring gear (71) and the rotating rack (72) are meshed and transmitted; the docking piece is arranged between the rotating ring gear (71) and the rotating part (522), when the collecting plate (5) moves out of the bottom of the drill tube (21), the docking piece forces the rotating ring gear (71) and the rotating part (522) to rotate synchronously; when the collecting plate (5) moves into the bottom of the drill tube (21), the docking piece forces the rotating ring gear (71) and the rotating part (522) to be disconnected.

9. The soil sampler according to claim 8, characterized in that: The inner peripheral wall of the rotating gear ring (71) is provided with an embedding groove (711), the embedding groove (711) has a guide surface (712), the guide surface (712) has a first point position (713) and a second point position (714), the distance from the first point position (713) to the center position of the rotating part (522) is greater than the distance from the second point position (714) to the center position of the rotating part (522); the docking member comprises a docking column (73) and a docking spring (74), the docking column (73) is arranged on the embedding groove (711) In the mounting groove (711), the docking spring (74) is installed between the docking column (73) and the inner wall of the mounting groove (711), and the docking spring (74) forces the docking column (73) to move toward the second point (714), and forces the docking column (73) to abut against the guide surface (712) and the outer peripheral wall of the rotating part (522) at the same time. When the collecting plate (5) moves out of the bottom of the drill tube (21), the rotating ring gear (71) drives the rotating part (522) to rotate synchronously through the docking column (73).

10. The soil sampler according to claim 2, characterized in that: The mounting frame (1) is slidably mounted with a push rod (14), and the push rod (14) is located at the top of the push rod (32) for abutment against the push rod (32); the push rod (14) is connected with a linkage assembly (8), and when the drill rod (2) drives the push rod (32) to abut against the push rod (14) and continues to lift the drill rod (2), the linkage assembly (8) forces the push rod (14) to push the push rod (32) downward.

Images