A soil sampling device for construction

Abstract

The present invention belongs to the technical field of soil sampling, and specifically is a soil sampling device for construction, comprising a pedestal, two lifting frames are arranged on the end surface of the pedestal, a movable plate is slidably arranged between the two lifting frames, a mounting shell is arranged on the end surface of the movable plate, a sampling lifting assembly is arranged on the end surface of the mounting shell, the sampling lifting assembly is connected with a sampling rod, an outer cylinder is rotatably arranged on the outside of the sampling rod on the bottom end surface of the movable plate, and a drill bit is arranged at one end of the outer cylinder. The present invention can effectively prevent soil from falling off by arranging structures such as a sampling cylinder and a movable plate, and can improve the sampling efficiency while filtering larger stone particles in the soil to prevent larger stone particles from affecting the collection of soil information; by arranging the sampling rod and the sampling cylinder, repeated drilling can be prevented, performance consumption can be reduced, and the straightness of the drilling can be improved, repeated sampling can be avoided, and the accuracy of soil collection information can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of soil sampling, and in particular relates to a soil sampling device for building construction. Background Art

[0002] Building construction refers to the production activities during the implementation phase of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into physical objects at designated locations. Before building construction, it is often necessary to conduct a census, soil monitoring and soil testing of the construction site to determine the depth of the foundation and the total weight of the building. A soil sampler is a tool used to obtain soil samples.

[0003] Patent No. CN212722133U discloses a deep soil sampling device for construction, including a base, a rotating drum and a mounting frame, wherein a limiting hole is arranged on the base, a support frame is arranged on one side above the base, the rotating drum is arranged at the bottom of the support frame, and a connecting plate is arranged on one side of the rotating drum. The beneficial effect is that: by setting a rotating drum, a connecting plate and a fixing plate, the patent can seal the sampling port on the sampling tube through the fixing plate, so as to prevent the soil in the sampling tube from loosening and falling off when the staff rotates to separate the drilling tube and the sampling tube, avoid affecting the soil collection, and improve the efficiency of the work system; by setting a limiting plate, an electric push rod, a fixing ring and a rotating shaft, the electric push rod can push the fixing ring to limit the drilling tube, avoid shaking of the drilling tube, ensure the stability of the device operation, and at the same time, the drilling tube can be rotated normally through the rotating shaft.

[0004] In the prior art, the sampling port on the sampling tube can be sealed by a fixing plate, so as to prevent the soil from loosening and falling off due to the rotation of the staff after the sample is taken out. However, the prior art still has the following problems:

[0005] Firstly, in the prior art, when sampling soil, the soil is compacted and then brought out of the surface of the ground. In the process of taking the sample out of the ground, the soil sample will become loose due to the movement of the sampling tube, causing the soil in the sampling tube to fall off, requiring repeated sampling and investigation, which increases the difficulty of sampling.

[0006] Secondly, when sampling the soil, the existing technology will form a drill hole on the ground. During the reciprocating sampling process, the drill hole will collapse due to the vibration generated by multiple sampling, resulting in the need for re-survey and drilling, affecting the efficiency of sampling. At the same time, the rise and fall of the drill bit during each drilling will also have a certain angle deviation, affecting the straightness of the drill hole, resulting in repeated excavation of part of the soil, affecting the accuracy of soil information collection.

[0007] Finally, after sampling is completed, the existing technology requires workers to dig out and collect the samples in the sampling tube again, and the material discharge process cannot be completed automatically, which increases unnecessary construction costs. At the same time, during the drilling process, stones inside the soil will hinder the sampling work. The existing technology cannot reduce the impact of stones on collection, which can easily cause damage to the collector and reduce its service life. Summary of the invention

[0008] In order to overcome the deficiencies of the prior art, the present invention provides a soil sampling device for construction. By arranging structures such as a sampling tube and a movable plate, the soil can be effectively prevented from falling off, and the sampling efficiency can be improved. At the same time, the larger stone particles in the soil can be filtered to prevent the larger stone particles from affecting the collection of soil information. By arranging a sampling rod and a sampling tube, repeated drilling can be prevented, and performance consumption can be reduced. At the same time, the straightness of the drilling can be improved, repeated sampling can be avoided, and the accuracy of soil collection information can be improved. By arranging gears, retaining rings and pressure plates, the internal samples of the sampling tube can be automatically discharged, thereby reducing manpower consumption.

[0009] In order to achieve the above-mentioned object, the present invention provides the following technical solution: comprising a pedestal, two movable plates are slidably arranged above the pedestals, a sampling lifting assembly is arranged on the end surface of the movable plate, the sampling lifting assembly is connected to a sampling rod, an outer cylinder is rotatably arranged on the bottom end surface of the movable plate outside the sampling rod, and a drill is arranged below the outer cylinder;

[0010] A transmission cylinder, the transmission cylinder is connected to the upper end surface of the drill bit and is arranged in the outer cylinder;

[0011] A sampling cylinder, wherein the sampling cylinder is slidably arranged inside the transmission cylinder, and a plurality of sampling ports are arranged on the outer circumferential surface of the upper side of the sampling cylinder. When the sampling cylinder collects soil and moves up and down, the outer cylinder is always placed inside the sampling hole;

[0012] A push plate, the push plate is slidably arranged inside the sampling tube, and a discharge assembly is arranged above the push plate;

[0013] Movable plates, two of which are rotatably arranged at one end of the bottom of the sampling tube, and the two of which rotate outward in one direction only when the push plate is pressed downward;

[0014] The grinding head is arranged on the outer circumferential surface of the transmission cylinder above the drill bit, a water delivery cavity is formed between the transmission cylinder and the outer cylinder above the grinding head, and a plurality of filter blocks for filtering mud and sand are rotatably arranged inside the grinding head.

[0015] Through the arrangement of the sampling rod, the transmission tube, the sampling tube and other structures, the present invention can sample by pulling out the sampling tube through the sampling rod, so that the drill bit, the grinding head and other devices remain inside the soil, which can prevent the collapse of the drill hole and avoid secondary drilling and repeated sampling, thereby improving the flexibility and practicality of the device.

[0016] Preferably, the discharge assembly comprises:

[0017] A discharge block, the discharge block is connected and arranged on the end surface of the sampling tube above the sampling port;

[0018] A pressing plate, which is slidably arranged inside the discharge block, and when the pressing plate moves to the sampling lifting assembly, it generates downward pressure and pushes downward;

[0019] A guide rod, wherein the guide rod is arranged on the bottom end surface of the pressing plate, one end of the bottom of the guide rod extends into the interior of the sampling cylinder, and one end of the guide rod extending into the sampling cylinder is fixedly connected to the push plate;

[0020] A return spring is arranged outside the guide rod on the sampling tube and the pressure plate.

[0021] In this solution, a pressing plate, a guide rod and a push plate are arranged so that when the pressing plate moves downward, the guide rod can be pushed downward, so that the push plate at the bottom of the guide rod slides inside the sampling tube and pushes the soil out through the push plate.

[0022] Preferably, the discharge assembly further comprises two slide grooves arranged on the outer circumferential surface of the discharge block, and both ends of the pressure plate extend out, and the upper end surfaces of the pressure plate extending out of the two ends of the slide grooves are in contact with the sampling lifting assembly.

[0023] Preferably, the sampling lifting assembly comprises:

[0024] A mounting shell, wherein the mounting shell is fixedly mounted on the upper end surface of the moving plate;

[0025] A baffle, the baffle being arranged on an end surface of the mounting shell;

[0026] A gear rack transmission structure is arranged inside the baffle and outside the sampling rod;

[0027] A mounting block is arranged on the end surface of the baffle plate, a baffle ring is arranged inside the mounting block, and the bottom end surface of the baffle ring is in abutment contact with the upper end surfaces of the two pressure plates.

[0028] By setting a baffle, a mounting block and a baffle ring, this solution can enable the baffle ring to press against the upper end surface of the pressure plate when the sampling rod is lifted, so that the pressure plate slides inside the discharge block and pushes the push plate to discharge the material through the guide rod, thereby realizing automatic discharge and reducing manpower loss.

[0029] Preferably, the movable parts, two of which are symmetrically fixedly arranged on both sides of the bottom of the sampling tube;

[0030] Torsion springs, wherein a plurality of the torsion springs are respectively arranged at the two ends of the two movable members, and the torsion arms of the torsion springs are abutted and connected to the inside of the movable plate;

[0031] The bottom of the movable plate is provided with a pointed fan-shaped block.

[0032] In this scheme, by setting movable parts and torsion springs, the movable plate can only rotate toward the bottom, and the torsion arm of the torsion spring can enable the movable plate to support the soil inside the sampling tube to prevent the soil inside the sampling tube from falling off. After the sample is discharged, the elastic potential energy of the torsion spring will pull the movable plate to reset, so that the bottom end of the sampling tube is closed again, preventing the soil from escaping from the sampling tube, thereby improving the integrity of the sampling and the accuracy of the collected information.

[0033] Preferably, a plurality of soil-breaking blocks are arranged on the inner circumferential surface of the transmission cylinder outside the sampling cylinder, the inner surface of the soil-breaking blocks is arc-shaped and rotatably fits on the outer circumferential surface of the sampling cylinder, and an extrusion cavity is formed between the plurality of soil-breaking blocks.

[0034] This solution can not only filter larger particles of stone by providing a soil-breaking block and an extrusion chamber, but also use the knife tip at the bottom of the soil-breaking block to break up the sticky mud that adheres together, thereby improving the sampling effect.

[0035] Preferably, a piston is provided on the outer circumferential surface of the discharge block, and the outer circumferential surface of the piston is tightly fitted on the inner wall of the transmission cylinder.

[0036] By setting a piston, the present invention can provide air pressure to the inside of the transmission cylinder when the discharge block moves downward, so that the airflow blows the soil adhered to the drill bit, so that a cavity is formed between the drill bit and the soil, thereby reducing the energy loss when the drill bit rotates. At the same time, the airflow can clean the inner wall of the transmission cylinder.

[0037] Preferably, a water storage block, the water storage block is arranged inside the installation shell, and the water storage block is used for water supply processing;

[0038] A water tank, wherein the water tank is arranged on the end surface of the movable plate, a water pump is arranged inside the water tank, one end of the water pump is connected to the water storage block, and the other end of the water pump is connected to the water tank;

[0039] A sealing ring is arranged inside the water storage block, and the inner circumferential surface of the sealing ring abuts against the outer circumferential surface of the outer cylinder.

[0040] This solution provides a water pump and a connecting plate, so that water can be provided to the inside of the grinding head through the water pump, thereby ensuring the normal operation of the grinding head and increasing the service life of the device.

[0041] Preferably, connecting plates are provided at both ends of the outer tube on the upper and lower sides of the water transfer cavity, and multiple water inlet holes are provided on the end faces of the two connecting plates. The upper water inlet holes are connected to the water storage block, and the lower water inlet holes are connected to the grinding head.

[0042] This solution provides a connecting plate and a water inlet hole so that water can be smoothly supplied and the drilling process can be completed, thereby effectively improving the sampling effect.

[0043] Preferably, the second threaded rod, a plurality of the second threaded rods are rotatably arranged inside the pedestal, and a knob is arranged at one end of each of the plurality of the second threaded rods;

[0044] A threaded sleeve, wherein the plurality of threaded sleeves are respectively threadedly arranged on the outside of the second threaded rod, and the bottoms of the plurality of threaded sleeves are all provided with a pointed head;

[0045] A fixing shell, wherein a plurality of the fixing shells are respectively arranged outside the threaded sleeve, and a pad is arranged on the bottom end surface of the fixing shell.

[0046] In this solution, the pointed head can be pushed into the soil through the threaded sleeve by arranging the pointed head, thereby improving the stability of the device.

[0047] In summary, compared with the prior art, the beneficial effects of this solution are:

[0048] (1) The present invention provides a sampling tube, a sampling port, and a movable plate. When soil enters the sampling tube, it needs to pass through a plurality of soil-breaking blocks to form an extrusion cavity, so that the soil can enter the sampling tube. Since the movable plate is closed at one end of the bottom of the sampling tube, it can effectively prevent the soil from falling off, thereby improving the sampling efficiency. When the soil moves along the extrusion cavity, it can also filter out larger stone particles in the soil, thereby preventing the larger stone particles from affecting the collection of soil information.

[0049] (2) The present invention provides an outer cylinder, a sampling cylinder and a transmission cylinder, so that the sampling cylinder can be pulled out from the inside of the transmission cylinder alone to take samples, and the transmission cylinder, the outer cylinder and the drill bit and other devices can be retained inside the drill hole for the next sampling. When it is used next time, it is only necessary to slide the sampling cylinder downward along the transmission cylinder to continue sampling the soil. The outer cylinder retained inside the drill hole can prevent repeated sampling and soil falling off the inner wall of the drill hole, thereby reducing the consumption of repeated drilling performance and improving the straightness of the drilling, avoiding repeated sampling, and thus improving the accuracy of soil collection information;

[0050] (3) The present invention provides an outer cylinder, a grinding head, a connecting plate and other structures, so that the drill bit can continuously rub the inner wall of the drill hole through the protrusions on the surface of the grinding head during the soil drilling process, and continuously transport water to the inside of the grinding head during the process. The water is sprayed on the inner wall of the drill hole through the grinding head to form a mud wall, strengthen the inner wall of the drill hole, prevent the drill hole from collapsing and soil from falling, and improve the stability of the drill hole. By arranging multiple filter blocks inside the grinding head, it can effectively prevent mud and sand from entering the inside of the grinding head and blocking the water outlet, thereby increasing the service life of the equipment;

[0051] (4) The present invention is provided with a sampling lifting assembly and a discharge assembly, so that after the sampling is completed, the sampling rod can be automatically lifted out of the drill hole through the rack and the rotating gear, and in the process of lifting, the pressing plate abuts against the lower end surface of the retaining ring, so that the pressing plate pushes the push plate at the bottom, and the push plate pushes the soil to open the movable plate at the bottom of the sampling tube for discharge, thereby improving the automation of sample collection and reducing manpower consumption;

[0052] (5) The present invention provides a piston that can move downward in contact with the inner wall of the transmission cylinder and generate air pressure inside the transmission cylinder during movement, so that the air blows onto the drill bit at the bottom, thereby separating the drill bit from the soil. When the drill bit rotates and continues to move downward, the pressure exerted by the soil on the drill bit can be reduced, thereby reducing energy loss. At the same time, the airflow can clean the inner wall of the transmission cylinder to prevent soil from adhering to the inner wall of the transmission cylinder.

[0053] (6) The present invention provides components such as a sampling tube and a threaded sleeve as well as a pad and a pointed tip, so that the device can fit the ground, increase the friction between the device and the ground, and improve the stability of the device. At the same time, by rotating the knob, the pointed tip at the bottom can be extended downward and pierced into the ground, further improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 A perspective view of the present invention;

[0055] Figure 2 It is a front view of the present invention;

[0056] Figure 3 for Figure 2 Stereoscopic cross-sectional view at AA in the middle;

[0057] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0058] Figure 5 for Figure 3 A partial enlarged view of point C in the middle;

[0059] Figure 6 It is a structural schematic diagram of the parts of the discharge block;

[0060] Figure 7 for Figure 6 A partial enlarged view of point D in the middle;

[0061] Figure 8 It is a structural schematic diagram of the grinding head parts;

[0062] Fig. 9 It is a structural schematic diagram of the piston parts;

[0063] Fig.10 is a side view of the present invention;

[0064] Fig.11 for Fig.10 A three-dimensional cross-sectional view at EE in the middle;

[0065] Fig.12 for Fig.11 A partial enlarged view of point F in the middle;

[0066] Fig.13 for Fig.11 A partial enlarged view of the G in the middle;

[0067] Fig.14 for Fig.10 A three-dimensional cross-sectional view at the middle HH;

[0068] Fig.15 for Fig.14 A partial enlarged view of point I in the middle;

[0069] In the figure: a base 10, a lifting frame 11, a first threaded rod 12, a first motor 13, a sampling box 14, a moving plate 15, a mounting shell 16, an outer cylinder 17, a sampling rod 18, a transmission cylinder 19, a water delivery cavity 20, a grinding head 21, a filter block 22, a quick connector 23, a discharge block 24, a pressing plate 25, a guide rod 26, a return spring 27, a sampling cylinder 28, a push plate 29, a sampling port 30, a movable plate 31, a movable part 32, a drill bit 33, an extrusion cavity 34, a soil breaking block 35, a chute 36, Torsion spring 37, connecting plate 38, water inlet hole 39, blade 40, rack 41, gear 42, mounting block 43, baffle ring 44, second motor 45, water pump 46, water storage block 47, sealing ring 48, piston 49, driving gear 50, driven gear 51, third motor 52, baffle 53, level 54, controller 55, water tank 56, knob 57, second threaded rod 58, threaded sleeve 59, fixed shell 60, fixed plate 61, pad 62, pointed head 63, fan-shaped block 64. DETAILED DESCRIPTION

[0070] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0071] Embodiment 1:

[0072] refer to Figure 1 and Figure 2 A soil sampling device for construction includes a pedestal 10. Two lifting frames 11 are arranged on the end surface of the pedestal 10. A first motor 13 is arranged inside one of the lifting frames 11. A first threaded rod 12 is arranged at the output end of the first motor 13. An auxiliary rod is arranged inside the other lifting frame 11. A movable plate 15 is arranged to slide between the auxiliary rod and the outside of the first threaded rod 12. The movable plate 15 is threadedly connected with the first threaded rod 12. A threaded sleeve is arranged at the connection between the movable plate 15 and the first threaded rod 12. The first threaded rod 12 is driven to rotate by the first motor 13, so that the first threaded rod 12 drives the movable plate 15 to move up and down through the threaded sleeve, thereby driving the drill bit 33 to move up and down to drill the soil. A notch for drilling is arranged on the end surface of the pedestal 10. Through this arrangement, the drill bit 33 can pass through the pedestal 10 and extend downward into the soil.

[0073] A mounting shell 16 is arranged on the end surface of the movable plate 15, and a sampling rod 18 is slidably arranged inside the mounting shell 16. A baffle 53 is arranged on the end surface of the mounting shell 16, and a sampling box 14 is slidably arranged inside the baffle 53. The sampling box 14 is used to load soil samples. The baffle 53 is concave in shape as a whole, and the concave baffle 53 is arranged around the sampling rod 18. By arranging the baffle 53, wind and rain can be shielded during sampling to prevent bad weather from affecting sample collection. A level 54 is arranged on the end surface of the movable plate 15. By arranging the level 54, the slope during sampling can be detected, thereby improving the accuracy of soil collection information. A controller 55 is arranged on the outside of one of the lifting frames 11, and the lifting and lowering of the sampling tube 28 and the depth of the drilling hole can be controlled by arranging the controller 55.

[0074] For further reference, Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8A driving gear 50 is rotatably arranged inside the mounting shell 16, and a driven gear 51 is meshed and transmitted on one side of the driving gear 50. A third motor 52 is arranged on the end surface of the mounting shell 16, and the output shaft of the third motor 52 is transmission-connected with the driving gear 50. A transmission cylinder 19 is arranged inside the driven gear 51. When the output shaft of the third motor 52 drives the driven gear 51 to rotate, the driven gear 51 drives the transmission cylinder 19 at the bottom to rotate. The transmission cylinder 19 is cylindrical as a whole, and an outer cylinder 17 is arranged outside the transmission cylinder 19. A grinding head 21 is arranged at one end of the bottom of the outer cylinder 17 on the outside of the transmission cylinder 19, and a drill bit 33 is arranged at one end of the bottom of the grinding head 21 on the outside of the transmission cylinder 19. After the transmission cylinder 19 rotates, it can drive the drill bit 33 at the bottom to rotate. The drill bit 33 is cross-shaped as a whole, and the interior of the drill bit 33 is connected with the transmission cylinder 19. Through this arrangement, the stones and soil broken by the drill bit 33 can enter the interior of the drill bit 33 through the notch formed by the cross, and enter The drill bit 33 is inserted into the transmission cylinder 19 for collection. The bottom of the drill bit 33 is provided with multiple tips. By providing multiple tips, the sharpness of the bottom of the drill bit can be increased, stones can be cut quickly, and the drilling efficiency can be improved. The surface of the drill bit 33 is also provided with multiple blades 40 with protruding circular surfaces. By providing multiple blades 40, branches with strong toughness in the soil can be cut off when the drill bit rotates, so as to prevent the branches from entangled with the drill bit and damaging the transmission structure, thereby improving the service life of the device. A plurality of soil-breaking blocks 35 are provided inside the transmission cylinder 19. The plurality of soil-breaking blocks 35 are arranged inside the transmission cylinder 19 in a circumferential direction, and the inner circular surface of the soil-breaking blocks 35 is arc-shaped, which fits on the outer circular surface of the sampling cylinder 28. A knife tip is provided at one end of the bottom of the plurality of soil-breaking blocks 35. By providing the knife tip, the soil vertically entering the interior of the transmission cylinder 19 can be broken, and the soil and branches with strong viscosity can be prevented from being stuck in the interior of the transmission cylinder 19, which affects the collection work. The transmission cylinder 19 is slidably connected with the sampling rod 18.

[0075] For further reference, Figure 2 , Figure 3 , Figure 5 , Figure 8 and Fig. 9A quick connector 23 is provided at one end of the bottom of the sampling rod 18, and a discharge block 24 is provided at one end of the bottom of the quick connector 23. By providing the quick connector 23, the sampling rod 18 can be quickly separated from the discharge block 24, so that the discharge block 24 can be disassembled and repaired, thereby improving the use efficiency of the device. A sampling cylinder 28 is provided at one end of the bottom of the discharge block 24, and a protrusion is provided on the outside of the sampling cylinder 28. The protrusion abuts on the top end surface of the soil-breaking block 35. By providing the protrusion, the soil-breaking block 35 can support the sampling cylinder 28. The sampling cylinder 28 is supported to improve its stability; an extrusion chamber 34 is formed between the plurality of soil-breaking blocks 35 and the sampling cylinder 28; the extrusion chamber 34 can be provided to allow the soil entering the transmission cylinder 19 to continue to move toward the interior of the transmission cylinder 19; and the extrusion chamber 34 can also filter larger stone particles to prevent larger stone particles from entering the interior of the sampling cylinder 28 and affecting the detection of soil information; a plurality of sampling ports 30 are provided on the top of the sampling cylinder 28; and the soil passing through the extrusion chamber 34 enters the interior of the sampling cylinder 28 through the sampling ports 30.

[0076] For further reference, Fig. 9 , Fig.10 , Fig.11 and Fig.13 The grinding head 21 is provided with a plurality of filter blocks 22 for internal rotation, and the outer cylindrical surface of the grinding head 21 is provided with a plurality of protruding ends. By providing a plurality of protruding ends, the grinding head 21 can continuously rub the inner wall of the drill hole when rotating, and spray water outward from the inside, so that the inner wall of the drill hole forms a mud protective wall, thereby improving the firmness of the drill hole and preventing the drill hole from collapsing when collecting soil, affecting the next use. The plurality of filter blocks 22 can filter mud and sand, and prevent mud and sand from entering the inside of the grinding head 21 through the water outlet, affecting the normal operation of the device. The top end surface of the filter block 22 is fixedly connected to the outer cylinder 17, and a water delivery cavity 20 is provided between the outer cylinder 17 and the transmission cylinder 19. Connecting plates 38 are provided at both ends of the inner part of the outer cylinder 17, and the connecting plate 38 is annular as a whole. The inner circular surfaces of the two connecting plates 38 are fixedly connected to the two ends of the outer cylinder 17, and the outer circular surfaces of the two connecting plates 38 are fixedly connected to the two ends of the transmission cylinder 19. A plurality of water inlet holes 39 are arranged on the end surfaces of the plurality of connecting plates 38. By arranging the connecting plates 38 and the water inlet holes 39, not only the connection between the outer cylinder 17 and the transmission cylinder 19 can be strengthened, but also water can be supplied to the inside of the water delivery chamber 20. A water storage block 47 is arranged inside the mounting shell 16 at one end of the outer cylinder 17. The outer cylinder 17 is rotatably connected with the water storage block 47. A water pump 46 is arranged on one side of the water storage block 47. A water tank 56 is arranged at one end of the water pump 46. The water pump 46 transports the water inside the water tank 56 into the inside of the water storage block 47, and transports the water into the inside of the grinding head 21 through the water delivery chamber 20, so as to provide a water source for the grinding head 21.

[0077] Specifically, a sealing ring 48 is provided between the water storage block 47 and the outer tube 17. By providing the sealing ring 48, the sealing performance of the equipment can be improved.

[0078] For further reference, Figure 6 , Figure 7 , Figure 8 and Fig. 9 A pressure plate 25 is provided for sliding inside the discharge block 24. Two slide grooves 36 are symmetrically provided on the outer circumferential surface of the discharge block 24. The two ends of the pressure plate 25 extend from the inside of the two slide grooves 36 respectively. A guide rod 26 is provided at the bottom of the pressure plate 25. The guide rod 26 passes through the inner bottom of the discharge block 24 and extends to the inside of the sampling tube 28. A push plate 29 is provided at the extended end of the guide rod 26. By providing the push plate 29, it can slide inside the sampling tube 28 after sampling is completed to push out the soil sample. A return spring 27 is provided on the outside of the guide rod 26 and the inside of the discharge block 24. When sampling, the quick connector 23 can be pulled by the sampling rod 18, and the discharge can be pulled by the quick connector 23. The material block 24 pulls the sampling tube 28 at the bottom out of the transmission tube 19, and retains the transmission tube 19 and the outer tube 17 inside the drill hole for next use. Through this arrangement, the sampling hole can be prevented from collapsing during multiple samplings, thereby improving the stability of the sampling area. At the same time, by retaining the transmission tube 19 and the outer tube 17, the straightness of the sampling can be improved, and repeated drilling and repeated sampling can be avoided, thereby improving the sampling efficiency. Subsequently, the pressure plate 25 is pushed, so that the pressure plate 25 pushes the guide rod 26 at the bottom and squeezes the reset spring 27. The guide rod 26 pushes the push plate 29 at the bottom when moving, so that the push plate 29 pushes the soil inside the sampling tube 28 out.

[0079] For further reference, Figure 6 and Figure 7 Two movable parts 32 are symmetrically arranged at one end of the bottom of the sampling cylinder 28. A movable plate 31 is rotatably arranged on one side of the two movable parts 32. The movable plate 31 is semicircular as a whole. The two movable plates 31 are symmetrically arranged at the bottom of the sampling cylinder 28 and can only rotate in one direction. By setting two movable plates 31, the bottom of the sampling cylinder 28 can be shielded to prevent soil from falling, thereby improving the integrity of soil collection. A plurality of torsion springs 37 are arranged between the movable parts 32 and the movable plates 31. The torsion arms of the torsion springs 37 abut against the inner side of the movable plates 31. By setting a torsion spring 37, after the soil pushes the movable plate 31 away, it can drive the movable plate 31 to reset for use in the next sampling. A pointed fan-shaped block 64 is set at the bottom of the movable plate 31. When the movable plate 31 is in a closed state, the two fan-shaped blocks 64 are combined into a cone shape. Through this setting, the conical fan-shaped blocks can break up the soil that has entered the inside of the transmission cylinder 19, so that the soil moves upward along the inclined surface of the cone end, and guides the soil in the direction of the extrusion chamber 34, which plays a guiding role for the soil, thereby improving the soil collection efficiency.

[0080] For further reference, Fig.10 , Fig.14 and Fig.15 The pedestal 10 is internally rotatably provided with a plurality of second threaded rods 58, one end of each of the plurality of second threaded rods 58 is provided with a knob 57, and the outer portions of each of the plurality of second threaded rods 58 are slidably provided with threaded sleeves 59, which are threadedly connected to the second threaded rods 58, and the outer portions of each of the plurality of threaded sleeves 59 are provided with fixed shells 60, and the outer portions of the threaded sleeves 59 are provided with a limiting groove, and the inner portions of the fixed shells 60 are provided with a limiting block, which is slidably connected to the limiting groove. By providing the fixed shell 60 and the limiting block, the threaded sleeve 59 can be limited from rotating, so that the threaded sleeve 59 can only move along the limiting groove, and the threaded sleeve 59 can be rotated by rotating. The knob 57 can drive the second threaded rod 58 to rotate, and drive the external threaded sleeve 59 to move through the second threaded rod 58. A pointed head 63 is provided at the bottom of the threaded sleeve 59. By providing the pointed head 63, the pointed head 63 can be inserted into the ground after the threaded sleeve 59 moves, thereby improving the grip of the device and further improving the overall stability of the device. A fixed plate 61 is provided at the bottom of the fixed shell 60, and a pad 62 is provided at the bottom of the fixed plate 61. The fixed shell 60 is made of soft rubber material. By providing the pad 62, it can fit tightly to the uneven ground, thereby improving the friction between the bottom surface of the device and the ground, and further improving the stability of the device.

[0081] Embodiment 2:

[0082] refer to Fig.10 , Fig.11 and Fig.12 A soil sampling device for construction includes a mounting block 43 arranged on the end surface of a baffle 53, a baffle ring 44 is arranged inside the mounting block 43, the baffle ring 44 is connected with the sampling rod 18 in a sliding manner, a gear 42 is rotatably arranged on the inner wall of the mounting block 43, a second motor 45 is arranged on one side of the mounting block 43, the output shaft of the second motor 45 is fixedly connected with the gear 42, a rack 41 is arranged on one side of the gear 42, the rack 41 is fixedly connected with the sampling rod 18, the rack 41 is meshed and transmission-connected with the gear 42, and a support plate is arranged on one side of the mounting block 43. By arranging the support plate, one side of the sampling rod 18 can be supported to prevent the sampling rod 18 from tilting due to the pulling force when the gear 42 transmits the rack 41;

[0083] After soil collection is completed, the second motor 45 can be started so that the output shaft of the second motor drives the gear 42 to rotate, and the gear 42 drives the gear rack 41 meshing therewith to lift. When the sampling rod 18 is lifted by the gear rack 41, the sampling rod 18 will pull the discharge block 24 through the quick connector 23 at the bottom. The discharge block 24 will pass through the inner circular surface of the retaining ring 44 during the upward movement, but the two ends of the pressure plate 25 extending from the slide groove 36 will abut against the bottom end surface of the retaining ring 44, preventing the pressure plate 25 from continuing to move upward. At this time, the sampling cylinder 28 is located inside the baffle 53, and the height of the fan-shaped block 64 is higher than the end surface of the mounting shell 16. Then the staff only needs to push the sampling box 14 to slide to the bottom of the sampling cylinder 28. As the gear 42 continues to lift the sampling Rod 18 causes the discharge block 24 to continue to move upward. At this time, the pressure plate 25 blocked by the retaining ring 44 cannot continue to move upward, and begins to push the guide rod 26 at the bottom to move downward while squeezing the reset spring 27, so that the guide rod 26 pushes the push plate 29 to move downward, and the push plate 29 slides downward inside the sampling tube 28, so that the push plate 29 pushes the soil inside the sampling tube 28, and causes the soil to break open the movable plate 31 rotating at the bottom and fall into the interior of the sampling box 14, completing automatic sampling. When the sampling is completed, the second motor 45 reverses, so that the gear 42 drives the sampling rod 18 to move downward, and the retaining ring 44 separates from the end face of the pressure plate 25, so that the reset spring 27 stretches due to elastic potential energy and pushes the pressure plate 25 to reset for the next use.

[0084] Embodiment three:

[0085] refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 A soil sampling device for construction includes a piston 49 arranged on the outer circumferential surface of a discharge block 24. The outer circumferential surface of the piston 49 is tightly fitted to the inner wall of a transmission cylinder 19. When the discharge block 24 slides inside the transmission cylinder 19, the piston 49 increases the air pressure inside the transmission cylinder 19, so that the gas cleans the inner wall of the transmission cylinder 19. At the same time, the air flow blows the soil near the drill bit 33, so that a cavity is formed between the drill bit 33 and the soil. Through this cavity, the energy loss of the drill bit 33 can be reduced when the drill bit 33 is started next time.

[0086] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0087] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0088] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A soil sampling device for construction, comprising a base (10), characterized in that: A movable plate (15) is slidably arranged above the two pedestals (10), a sampling lifting assembly is arranged on the end surface of the movable plate (15), the sampling lifting assembly is connected to a sampling rod (18), an outer cylinder (17) is rotatably arranged on the bottom end surface of the movable plate (15) outside the sampling rod (18), and a drill bit (33) is arranged below the outer cylinder (17); A transmission cylinder (19), the transmission cylinder (19) is connected to the upper end surface of the drill bit (33) and is arranged in the outer cylinder (17); A sampling cylinder (28), the sampling cylinder (28) being slidably disposed inside the transmission cylinder (19), a plurality of sampling ports (30) being disposed on the outer circumferential surface on the upper side of the sampling cylinder (28), and the outer cylinder (17) being always placed inside the sampling hole when the sampling cylinder (28) collects soil and moves up and down; A push plate (29), wherein the push plate (29) is slidably disposed inside the sampling tube (28), and a discharge assembly is disposed above the push plate (29); A movable plate (31), wherein two movable plates (31) are rotatably arranged at one end of the bottom of the sampling tube (28), and the two movable plates (31) rotate outward in one direction only when the push plate (29) is pressed downward; A grinding head (21), the grinding head (21) being arranged on the outer circumferential surface of the transmission cylinder (19) above the drill bit (33), a water delivery cavity (20) being formed between the transmission cylinder (19) and the outer cylinder (17) above the grinding head (21), and a plurality of filter blocks (22) for filtering sediment being rotatably arranged inside the grinding head (21); The discharge assembly comprises a discharge block (24), and the discharge block (24) is connected to the end surface of the sampling tube (28) above the sampling port (30); A pressing plate (25), wherein the pressing plate (25) is slidably disposed inside the discharge block (24), and when the pressing plate (25) moves to the sampling lifting assembly, it generates downward pressure and pushes downward; A guide rod (26), wherein the guide rod (26) is arranged on the bottom end surface of the pressure plate (25), one end of the bottom of the guide rod (26) extends into the interior of the sampling tube (28), and one end of the guide rod (26) extending into the sampling tube (28) is fixedly connected to the push plate (29); A return spring (27), wherein the return spring (27) is arranged outside the guide rod (26) and between the sampling tube (28) and the pressure plate (25); The discharge assembly further comprises two slide grooves (36) arranged on the outer circumferential surface of the discharge block (24), the two ends of the pressing plate (25) extend out of the slide grooves (36), and the upper end surfaces of the pressing plate (25) extending out of the two ends of the slide grooves (36) are in contact with the sampling lifting assembly.

2. A soil sampling device for construction according to claim 1, characterized in that: The sampling lifting assembly comprises: A mounting shell (16), wherein the mounting shell (16) is fixedly mounted on the upper end surface of the movable plate (15); a baffle (53), wherein the baffle (53) is arranged on an end surface of the mounting shell (16); A gear rack transmission structure is arranged inside the baffle (53) and outside the sampling rod (18); A mounting block (43) is arranged on the end surface of the baffle plate (53), a baffle ring (44) is arranged inside the mounting block (43), and the bottom end surface of the baffle ring (44) is in abutment contact with the upper end surfaces of the two pressure plates (25).

3. A soil sampling device for construction according to claim 1, characterized in that: A movable part (32), wherein two movable parts (32) are symmetrically fixedly arranged on two sides of the bottom of the sampling tube (28); Torsion springs (37), wherein a plurality of the torsion springs (37) are respectively arranged at the two ends of the two movable members (32), and the torsion arms of the torsion springs (37) are abutted and connected to the inside of the movable plate (31); A pointed-pointed sector block (64) is provided at the bottom of the movable plate (31).

4. A soil sampling device for construction according to claim 1, characterized in that: A plurality of soil-breaking blocks (35) are arranged on the inner circumferential surface of the transmission cylinder (19) outside the sampling cylinder (28); the inner surface of the soil-breaking blocks (35) is in an arc shape and is rotatably fitted to the outer circumferential surface of the sampling cylinder (28); and an extrusion cavity (34) is formed between the plurality of soil-breaking blocks (35).

5. A soil sampling device for construction according to claim 1, characterized in that: A piston (49) is arranged on the outer circumferential surface of the discharge block (24), and the outer circumferential surface of the piston (49) is tightly fitted on the inner wall of the transmission cylinder (19).

6. A soil sampling device for construction according to claim 1, characterized in that: A water storage block (47), the water storage block (47) being arranged inside the mounting shell (16), and the water storage block (47) being used to supply water to the water delivery cavity (20); A water tank (56), the water tank (56) being arranged on the end surface of the movable plate (15), a water pump (46) being arranged inside the water tank (56), one end of the water pump (46) being connected to the water storage block (47), and the other end of the water pump (46) being connected to the water tank (56); A sealing ring (48) is arranged inside the water storage block (47), and the inner circumferential surface of the sealing ring (48) abuts against the outer circumferential surface of the outer cylinder (17).

7. A soil sampling device for construction according to claim 1, characterized in that: The water delivery chamber (20) is provided with connecting plates (38) at both ends of the outer cylinder (17) on the upper and lower sides, and a plurality of water inlet holes (39) are provided on the end surfaces of the two connecting plates (38). The upper water inlet holes (39) are communicated with the water storage block (47), and the lower water inlet holes (39) are communicated with the grinding head (21).

8. A soil sampling device for construction according to claim 1, characterized in that: A second threaded rod (58), wherein a plurality of the second threaded rods (58) are rotatably disposed inside the pedestal (10), and a knob (57) is disposed at one end of each of the plurality of the second threaded rods (58); A threaded sleeve (59), wherein a plurality of the threaded sleeves (59) are respectively threadedly arranged on the outside of the second threaded rod (58), and a pointed head (63) is arranged at the bottom of the plurality of the threaded sleeves (59); A fixed shell (60), wherein a plurality of the fixed shells (60) are respectively arranged outside the threaded sleeve (59), and a pad (62) is arranged on the bottom end surface of the fixed shell (60).

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