Efficient sampler for soil difficult to sample and use method of efficient sampler

Abstract

The invention discloses an efficient sampler for difficult-to-sample soil and a use method thereof, and relates to the technical field of soil samplers, the efficient sampler comprises a cart, two U-shaped arc sliding plates, a round shell, a motor and a drilling barrel, the two U-shaped arc sliding plates are fixedly mounted on the top surface of the cart, the round shell is slidably mounted between the inner walls of the two U-shaped arc sliding plates, and the motor is arranged on the round shell. The motor is fixed to the top face in the round shell, the drilling barrel is fixed to the bottom face of a rotating shaft of the motor, the shoveling device comprises a transverse plate, an arc shoveling plate and a flat pressing assembly, the transverse plate is fixedly installed on the left side of the cart, the arc shoveling plate is fixed to the left side of the bottom face of the transverse plate, and the flat pressing assembly is arranged between the front face and the back face of the transverse plate. According to the invention, inclination of the rotary drill cylinder caused by uneven ground is prevented, so that the problem that a soil collector is difficult to collect soil is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of soil samplers, and particularly to an efficient sampler for difficult-to-sample soil and its usage method. Background Art

[0002] Soil samplers are tools or devices used to collect soil samples. They can be used in different soil investigation, research, analysis, and monitoring activities to confirm the proportion of different particle sizes in the soil, such as sand, silt, clay, loam, etc. Collecting soil samples is very important for analyzing the soil's water retention capacity, air permeability, fertility, and suitability for plant growth.

[0003] The patent with the patent announcement number CN207556899U discloses an efficient soil sampler, including a tube body. A push rod is arranged at the top of the tube body, a scale is arranged on the surface of the push rod, a pressing block is arranged at the bottom of the push rod, a motor is arranged at the bottom of the pressing block, a connecting plate is arranged at the bottom of the motor, a fixing plate is arranged at the bottom of the connecting plate, a sampling chamber is arranged at the bottom of the fixing plate, hydraulic rods are arranged on both sides of the sampling chamber, and a crushing blade is arranged at the bottom of the hydraulic rods. By setting the crushing blade, when encountering large stones that cause the sampling chamber to be unable to descend during use, the crushing blade can break the stones, facilitating the continued descent of the sampling chamber. When the crushing blade has been used for a period of time, unscrew the screw from the threaded tube and remove the crushing blade from the hydraulic rod to replace the crushing blade. This setting makes the sampler easy to operate during use, the sampling more accurate, and it is convenient to replace the crushing blade, making the sampler more efficient.

[0004] However, the current efficient soil samplers have the following problems: When the efficient soil sampler punches holes in the ground, due to the uneven ground surface, the drill cylinder is prone to tilt, making it difficult to collect the soil at the bottom, resulting in the problem that the sampler is difficult to collect soil. Therefore, it is necessary to design an efficient sampler for difficult-to-sample soil. Summary of the Invention

[0005] The purpose of the present invention is to provide an efficient sampler for difficult-to-sample soil to solve the problem proposed in the above background art that due to the uneven ground surface, the drill cylinder is prone to tilt, making it difficult to collect the soil at the bottom, resulting in the problem that the sampler is difficult to collect soil.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an efficient sampler for difficult-to-sample soil, comprising a cart, two U-shaped arc slides, a circular shell, a motor and a drill barrel, wherein the two U-shaped arc slides are respectively fixedly mounted on the top surface of the cart, the circular shell is slidably mounted between the inner walls of the two U-shaped arc slides, the motor is fixed to the inner top surface of the circular shell, and the drill barrel is fixed to the bottom surface of the motor shaft, and further comprising a scraping device, a supporting device, an anti-cracking device and a cleaning device, wherein the scraping device is arranged on the left side of the cart, the supporting devices are respectively arranged on the left and right sides of the circular shell, the anti-cracking devices are respectively arranged on the left and right sides of the supporting device, and the cleaning device is arranged on the top surface of the scraping device; Among them, the shoveling device includes a horizontal plate, an arc shovel plate and a flat pressing assembly. The horizontal plate is fixedly installed on the left side of the cart, the arc shovel plate is fixed on the left side of the bottom surface of the horizontal plate, and the flat pressing assembly is arranged between the front and back of the horizontal plate. The arc shovel plate on the horizontal plate removes the uneven soil on the ground to make the ground flat.

[0007] According to the above technical solution, the flattening assembly includes two vertical plates, a rotating rod and a rolling roller. The two vertical plates are respectively fixed in the middle of the front and back of the horizontal plate. The rotating rod passes through and is rotatably installed between the two vertical plates. The rolling roller is fixed on the outer wall of the rotating rod to prevent the rotating drill tube from tilting due to uneven ground, thereby avoiding the problem of difficulty in collecting soil by the soil collector.

[0008] According to the above technical solution, two sets of rollers are installed on the bottom surface of the cart, a handle is fixedly installed on the right side of the cart, four circular holes are opened on the top surface of the cart, a protective cylinder is installed in the middle of the bottom surface of the cart, a spiral rotating plate is fixed on the outer wall of the drill barrel, a return soil port is provided at the bottom end of the drill barrel, the drill barrel is rotatably installed in the protective cylinder of the cart, and the bottom surface of the arc shovel plate is set to be chamfered.

[0009] According to the above technical solution, the supporting device includes two connecting plates, two telescopic rods and a positioning assembly. The two connecting plates are respectively fixed in the middle of the left and right sides of the circular shell. The two telescopic rods are respectively hinged on the opposite sides of the two connecting plates. The ends of the two telescopic rods away from the two connecting plates are respectively hinged on the top surface of the cart. The positioning assembly is arranged in the middle of the top surface of the circular shell to prevent the drill barrel on the motor shaft from offset.

[0010] According to the above technical solution, the positioning component includes a cylinder, a cross plate, four cylinders and four pressure rods. The cylinder is fixed in the middle of the top surface of the circular shell, the cross plate is fixed in the middle of the top surface of the cylinder, the four cylinders are respectively fixed at the edges of the bottom surface of the cross plate, the four pressure rods are respectively slidably installed inside the four cylinders, springs are respectively fixed between the top surfaces of the four pressure rods and the inner tops of the four cylinders, and the four pressure rods are respectively slidably arranged in the four circular holes of the trolley, preventing the drilling cylinder from sampling deviation caused by the vibration generated when the motor shaft rotates forward, thus avoiding the problem of inaccurate sampling orientation of the soil sampler.

[0011] According to the above technical solution, hinge discs are fixed on the top surfaces of the telescopic ends of the two telescopic rods, hinge discs are respectively fixed on the bottom surfaces of the two telescopic rods, and circular rubber pads are respectively fixed on the bottom surfaces of the four pressure rods.

[0012] According to the above technical solution, the anti-cracking device includes two L-shaped plates, two T-shaped pressing plates, two U-shaped plates and a buffer assembly. The two L-shaped plates are respectively fixed at the bottoms of the front and back of the cylinder, the two T-shaped pressing plates are respectively fixed at the ends of the two L-shaped plates away from the cylinder, the two U-shaped plates are respectively fixed in the middle of the front and back of the trolley, the two T-shaped pressing plates are respectively slidably installed on the inner walls of the two U-shaped plates, and the buffer assembly is arranged in the middle of the bottom surfaces of the two L-shaped plates, preventing the soil from cracking and causing the sampling to fail when the drilling cylinder drills downward.

[0013] According to the above technical solution, the buffer assembly includes four cushion plates and two spring plates. The two cushion plates are respectively fixed in the middle of the bottom surfaces of the two L-shaped plates, the other two cushion plates are respectively fixed on the top surface of the trolley, the two spring plates are respectively fixed between the four cushion plates, and the two spring plates are respectively arranged in the front and back of the two U-shaped arc-shaped sliding plates, preventing the vibration generated when the soil sampler collects soil from being too large and causing uneven drilling force of the drilling cylinder, thus avoiding the problem of equipment damage caused by excessive amplitude when the soil sampler collects soil.

[0014] According to the above technical solution, the cleaning device includes a water tank, a water pump, two water pipes, an electric water spray nozzle and a protection assembly. The water tank is fixedly installed on the top surface of the cross plate, the water pump is fixedly installed at the bottom end inside the water tank, the two water pipes are respectively fixedly installed on the right side of the water pump, the two water pipes penetrate and are fixedly installed at the bottom right side of the inner wall of the water tank, the electric water spray nozzle is fixedly installed at one end of the two water pipes away from the water pump, the electric water spray nozzle is arranged at the gap between the two U-shaped arc-shaped sliding plates, and the protection assembly is arranged on the left side of the water tank. The electric water spray nozzle sprays the water in the water pipe, and the sprayed water flow cleans the drilling cylinder, preventing a large amount of sludge from adhering to the drilling cylinder.

[0015] According to the above technical solution, the protection component includes a baffle and two inclined plates. The baffle is fixedly installed on the left side of the water tank, and the two inclined plates are respectively fixed on the front and back of the baffle. The baffle protects the equipment from being blocked by foreign objects during movement. The baffle drives the inclined plates to move forward, preventing the branches of the bushes from sliding onto the equipment, thereby avoiding the problem of damage to the soil sampler during movement.

[0016] A method for using an efficient sampler for difficult-to-sample soil includes the following steps S1. The staff pushes the trolley through the handle on the trolley; S2. The trolley drives the cross plate to move forward. The arc shovel plate on the cross plate shovels the uneven soil on the ground. The cross plate drives the vertical plate to move forward, and the vertical plate drives the rotating rod to move forward. The rolling roller on the rotating rod is affected by the ground friction force, and the rolling roller rolls the uneven ground; S3. The trolley drives the water tank to drive the baffle to move forward, and the baffle drives the inclined plates to move forward; S4. The staff starts the motor in the circular shell through the wire, and the motor shaft starts to rotate forward. The motor drives the circular shell to slide downward in the U-shaped arc slide plate, and the circular shell is restricted by the telescopic rod; S5. The circular shell drives the cylinder to move downward, the cylinder drives the cross plate to move downward, the cross plate drives the cylinder to move downward, the cylinder drives the pressure rod to move downward, the pressure rod slides upward in the cylinder, and under the action of the spring elastic force of the pressure rod, the pressure rod tightly presses the ground; S6. The cylinder drives the L-shaped plate to move downward, the L-shaped plate drives the T-shaped pressing plate to move downward, the T-shaped pressing plate slides downward in the return plate, and the T-shaped pressing plate is inserted downward into the soil; S7. The L-shaped plate drives the backing plate to move downward, and the spring plate in the backing plate is squeezed; S8. The staff starts the water pump in the water tank through the wire, and the water pump starts to pump the water in the water tank, and the water in the water tank enters the water pipe; S9. The staff starts the electric water spray nozzle through the wire, and the electric water spray nozzle sprays the water in the water pipe, and the sprayed water flow cleans the drill cylinder.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are: (1). Through the setting of the shoveling device, the present invention enables the cross plate, the arc shovel plate, the vertical plate and the rotating rod to cooperate with the rolling roller. The arc shovel plate on the cross plate shovels the uneven soil on the ground to make the ground flat, and the rolling roller on the rod rolls the uneven ground to prevent the ground from being uneven and causing the drill cylinder to tilt, thereby avoiding the problem that the soil sampler is difficult to collect soil.

[0018] (2) Through the provision of the support device, in the present invention, the connecting plate, the telescopic rod, the cylinder, the cross plate and the cylinder cooperate with the pressure rod. The telescopic rod ensures that the motor in the circular shell does not shift in position during the downward movement, preventing the drill barrel on the motor shaft from shifting. Moreover, when the pressure rod moves downward to the ground, the pressure rod slides upward in the cylinder, and under the action of the spring elasticity of the pressure rod, the pressure rod tightly presses the ground, preventing the drill barrel from shifting due to the vibration generated when the motor shaft rotates forward, thereby avoiding the problem of inaccurate sampling orientation of the soil sampler.

[0019] (3) Through the provision of the anti-cracking device, in the present invention, the L-shaped plate, the T-shaped pressing plate, the return-shaped plate and the cushion plate cooperate with the spring plate. The T-shaped pressing plate is inserted downward into the soil, and the soil is restricted by the T-shaped pressing plate, preventing the soil from cracking during the downward drilling of the drill barrel and causing the collection to fail. Moreover, the spring plate in the cushion plate is compressed, and under the elastic force of the spring plate, the cushion plate on the spring plate buffers the L-shaped plate, and the L-shaped plate reduces the vibration generated when the soil sampler collects soil, preventing the uneven drilling force of the drill barrel caused by excessive vibration during soil collection by the soil sampler, thereby avoiding the problem of equipment damage caused by excessive amplitude during soil collection by the soil sampler.

[0020] (4) Through the provision of the cleaning device, in the present invention, the water tank, the water pump, the water pipe, the electric water spray nozzle and the baffle cooperate with the inclined plate. The electric water spray nozzle sprays the water in the water pipe, and the sprayed water flow cleans the drill barrel, preventing a large amount of sludge from adhering to the drill barrel. Moreover, the baffle protects the equipment from being blocked by foreign objects during movement, and the baffle drives the inclined plate to move forward, preventing the branches of the bushes from slipping onto the equipment, thereby avoiding the problem of damage to the soil sampler during movement. Description of the Drawings

[0021] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a schematic diagram of the whole of the present invention; Figure 2 is a schematic diagram of the front cross-section of the whole of the present invention; Figure 3 is a schematic diagram of the partial cross-section of the whole of the present invention; Figure 4 is a three-dimensional schematic diagram of the bottom surface of the shoveling device of the present invention; Figure 5 is a three-dimensional schematic diagram of the front of the support device of the present invention; Figure 6 is a three-dimensional schematic diagram of the front of the anti-cracking device of the present invention; Figure 7 is a schematic diagram of the front cross-section of the cleaning device of the present invention.

[0022] In the figure: 1. cart; 2. U-shaped arc slide; 3. round shell; 4. motor; 5. drill tube; 6. scraping device; 600. flat pressing assembly; 7. supporting device; 700. positioning assembly; 8. anti-cracking device; 800. buffer assembly; 9. cleaning device; 900. protective assembly; 61. horizontal plate; 62. arc shovel plate; 63. vertical plate; 64. rotating rod; 65. rolling roller; 71. connecting plate; 72. telescopic rod; 73. cylinder; 74. cross plate; 75. cylinder; 76. pressure rod; 81. L-shaped plate; 82. T-shaped pressure plate; 83. circular plate; 84. pad; 85. spring plate; 91. water tank; 92. water pump; 93. water pipe; 94. electric water nozzle; 95. baffle; 96. inclined plate. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0024] See also Figures 1-5, the present invention provides a technical solution: an efficient sampler for difficult-to-sample soil, including a trolley 1, two U-shaped arc-shaped slide plates 2, a circular shell 3, a motor 4 and a drill cylinder 5. The two U-shaped arc-shaped slide plates 2 are respectively fixedly installed on the top surface of the trolley 1. The circular shell 3 is slidably installed between the inner walls of the two U-shaped arc-shaped slide plates 2. The motor 4 is fixed on the inner top surface of the circular shell 3. The drill cylinder 5 is fixed on the bottom surface of the rotating shaft of the motor 4. It also includes a shoveling device 6 and a supporting device 7. The shoveling device 6 is arranged on the left side of the trolley 1. Among them, the shoveling device 6 includes a cross plate 61, an arc-shaped shovel plate 62 and a flat pressing assembly 600. The cross plate 61 is fixedly installed on the left side of the trolley 1. The arc-shaped shovel plate 62 is fixed on the left bottom surface of the cross plate 61. The trolley 1 drives the cross plate 61 to move forward. The cross plate 61 drives the arc-shaped shovel plate 62 to move forward. The arc-shaped shovel plate 62 shovels the uneven soil on the ground to make the ground flat. The flat pressing assembly 600 is arranged in the middle of the front and back of the cross plate 61. The flat pressing assembly 600 includes two vertical plates 63, a rotating rod 64 and a rolling roller 65. The two vertical plates 63 are respectively fixed in the middle of the front and back of the cross plate 61. The rotating rod 64 passes through and is rotatably installed between the two vertical plates 63. The rolling roller 65 is fixed on the outer wall of the rotating rod 64. The cross plate 61 drives the vertical plates 63 to move forward. The vertical plates 63 drive the rotating rod 64 to move forward. The rotating rod 64 drives the rolling roller 65 to move forward. The rolling roller 65 on the rotating rod 64 is affected by the ground friction force, and the rolling roller 65 starts to rotate. The rolling roller 65 drives the rotating rod 64 to rotate. The rolling roller 65 rolls the uneven ground to prevent the ground from being uneven and causing the drill cylinder 5 to tilt, thus avoiding the problem that the soil sampler is difficult to collect soil. Two groups of rollers are installed on the bottom surface of the trolley 1. A handle is fixedly installed on the right side of the trolley 1. Four round holes are opened on the top surface of the trolley 1. A protection cylinder is installed in the middle of the bottom surface of the trolley 1. A spiral blade is fixed on the outer wall of the drill cylinder 5. A soil return port is arranged at the bottom end of the drill cylinder 5. The drill cylinder 5 is rotatably installed in the protection cylinder of the trolley 1. The bottom surface of the arc-shaped shovel plate 62 is set as a chamfer.

[0025] The supporting devices 7 are respectively arranged on the left and right sides of the circular shell 3. The supporting device 7 includes two connecting plates 71, two telescopic rods 72 and a positioning component 700. The two connecting plates 71 are respectively fixed in the middle of the left and right sides of the circular shell 3. The two telescopic rods 72 are respectively hinged to the opposite surfaces of the two connecting plates 71. The ends of the two telescopic rods 72 far away from the two connecting plates 71 are respectively hinged to the top surface of the trolley 1. The rotating shaft of the motor 4 drives the drill cylinder 5 to rotate forward. The spiral blades on the drill cylinder 5 are inserted into the soil and the spiral blades drive the drill cylinder 5 to move downward into the soil. The drill cylinder 5 drives the motor 4 to move downward. The motor 4 drives the circular shell 3 to move downward. The circular shell 3 slides downward in the U-shaped arc-shaped slide plate 2. At the same time, the circular shell 3 drives the connecting plate 71 to move downward. The connecting plate 71 drives the telescopic rod 72 to move downward. Restricted by the connecting plate 71, the telescopic rod 72 rotates in the connecting plate 71. Restricted by the trolley 1, the telescopic rod 72 rotates on the trolley 1. The telescopic ends of the telescopic rods 72 begin to contract. Restricted by the telescopic rods 72, the circular shell 3 prevents the motor 4 in the circular shell 3 from shifting in position during the downward movement, and prevents the drill cylinder 5 on the rotating shaft of the motor 4 from shifting. The positioning component 700 is arranged in the middle of the top surface of the circular shell 3. The positioning component 700 includes a cylinder 73, a cross plate 74, four cylinders 75 and four pressure rods 76. The cylinder 73 is fixed in the middle of the top surface of the circular shell 3. The cross plate 74 is fixed in the middle of the top surface of the cylinder 73. The four cylinders 75 are respectively fixed at the bottom edges of the cross plate 74. The four pressure rods 76 are respectively slidably installed inside the four cylinders 75. Springs are respectively fixed between the top surfaces of the four pressure rods 76 and the inner tops of the four cylinders 75. The four pressure rods 76 are respectively slidably arranged in the four circular holes of the trolley 1. The circular shell 3 drives the cylinder 73 to move downward. The cylinder 73 drives the cross plate 74 to move downward. The cross plate 74 drives the cylinders 75 to move downward. The cylinders 75 drive the pressure rods 76 to move downward. The pressure rods 76 move downward through the circular holes of the trolley 1. When the pressure rods 76 move downward to the ground, the pressure rods 76 slide upward in the cylinders 75. Under the action of the spring force of the pressure rods 76, the pressure rods 76 tightly press the ground, preventing the drill cylinder 5 from shifting due to the vibration generated when the rotating shaft of the motor 4 rotates forward, thus avoiding the problem of inaccurate sampling orientation of the drill cylinder 5, and avoiding the problem of inaccurate sampling orientation of the soil sampler. Hinge discs are fixed on the top surfaces of the telescopic ends of the two telescopic rods 72. Hinge discs are respectively fixed on the bottom surfaces of the two telescopic rods 72. Circular rubber pads are respectively fixed on the bottom surfaces of the four pressure rods 76.

[0026] In use, the staff member pushes the trolley 1 through the handle on the trolley 1. The trolley 1 moves forward, driving the U-shaped arc slide plate 2 forward. The U-shaped arc slide plate 2 drives the circular shell 3 forward. The circular shell 3 drives the motor 4 forward. The drill cylinder 5 on the rotating shaft of the motor 4 moves forward. The protective cylinder of the trolley 1 prevents the drill cylinder 5 from being damaged during movement. The trolley 1 drives the cross plate 61 forward. The cross plate 61 drives the arc shovel plate 62 forward. The arc shovel plate 62 shovels the uneven soil on the ground to make the ground flat. At the same time, the cross plate 61 drives the vertical plate 63 forward. The vertical plate 63 drives the rotating rod 64 forward. The rotating rod 64 drives the rolling roller 65 forward. The rolling roller 65 on the rotating rod 64 is affected by the ground friction force and starts to rotate. The rolling roller 65 drives the rotating rod 64 to rotate, so that the rolling roller 65 rolls the uneven ground, preventing the ground from being uneven and causing the drill cylinder 5 to tilt, thus avoiding the problem that the soil collector is difficult to collect soil.

[0027] When the position where the soil needs to be collected is determined, the staff member starts the motor 4 in the circular shell 3 through the wire. The rotating shaft of the motor 4 starts to rotate forward. The rotating shaft of the motor 4 drives the drill cylinder 5 to rotate forward. The spiral blades on the drill cylinder 5 rotate into the soil and the spiral blades drive the drill cylinder 5 to move downward into the soil. The drill cylinder 5 drives the motor 4 downward. The motor 4 drives the circular shell 3 downward. The circular shell 3 slides downward in the U-shaped arc slide plate 2. At the same time, the circular shell 3 drives the connecting plate 71 downward. The connecting plate 71 drives the telescopic rod 72 downward. The telescopic rod 72 is restricted by the connecting plate 71 and rotates in the connecting plate 71. The telescopic rod 72 is restricted by the trolley 1 and rotates on the trolley 1. The telescopic end of the telescopic rod 72 starts to contract. The circular shell 3 is restricted by the telescopic rod 72, so that the motor 4 in the circular shell 3 does not shift in position during the downward movement, preventing the drill cylinder 5 on the rotating shaft of the motor 4 from shifting. At the same time, the circular shell 3 drives the cylinder 73 downward. The cylinder 73 drives the cross plate 74 downward. The cross plate 74 drives the cylinder 75 downward. The cylinder 75 drives the pressure rod 76 downward. The pressure rod 76 moves downward through the circular hole of the trolley 1. When the pressure rod 76 moves downward to the ground, the pressure rod 76 slides upward in the cylinder 75, and under the action of the spring elastic force of the pressure rod 76, the pressure rod 76 tightly presses the ground, preventing the drill cylinder 5 from sampling deviation caused by the vibration generated when the rotating shaft of the motor 4 rotates forward, thus avoiding the problem that the soil collector has inaccurate sampling orientation. Embodiment

[0028] Please refer to Figures 1-7, based on Embodiment 1, this embodiment further includes an anti-cracking device 8 and a cleaning device 9. The anti-cracking device 8 is respectively arranged on the left and right sides of the support device 7. The anti-cracking device 8 includes two L-shaped plates 81, two T-shaped pressing plates 82, two loop-shaped plates 83 and a buffer assembly 800. The two L-shaped plates 81 are respectively fixed to the bottom of the front and back of the cylinder 73. The two T-shaped pressing plates 82 are respectively fixed to the ends of the two L-shaped plates 81 away from the cylinder 73. The two loop-shaped plates 83 are respectively fixed to the middle of the front and back of the trolley 1. The two T-shaped pressing plates 82 are respectively slidably installed on the inner walls of the two loop-shaped plates 83. The cylinder 73 drives the L-shaped plate 81 to move downward. The L-shaped plate 81 drives the T-shaped pressing plate 82 to move downward. The T-shaped pressing plate 82 slides downward in the loop-shaped plate 83. The T-shaped pressing plate 82 is inserted downward into the soil. The soil is restricted by the T-shaped pressing plate 82, preventing the soil from cracking when the drilling cylinder 5 drills downward, resulting in the failure of soil collection. The buffer assembly 800 is arranged in the middle of the bottom surfaces of the two L-shaped plates 81. The buffer assembly 800 includes four cushion plates 84 and two spring plates 85. The two cushion plates 84 are respectively fixed to the middle of the bottom surfaces of the two L-shaped plates 81. The other two cushion plates 84 are respectively fixed to the top surface of the trolley 1. The two spring plates 85 are respectively fixed between the four cushion plates 84. The two spring plates 85 are respectively arranged on the front and back of the two U-shaped arc-shaped sliding plates 2. The L-shaped plate 81 drives the cushion plate 84 to move downward. The spring plate 85 in the cushion plate 84 is squeezed. Under the elastic force of the spring plate 85, the cushion plate 84 on the spring plate 85 buffers the L-shaped plate 81. The L-shaped plate 81 reduces the vibration generated by the soil collector when collecting soil, preventing the uneven drilling force of the drilling cylinder 5 caused by excessive vibration generated by the soil collector when collecting soil, thereby avoiding the problem of equipment damage caused by excessive amplitude of the soil collector when collecting soil.

[0029] The cleaning device 9 is arranged on the top surface of the shoveling device 6. The cleaning device 9 includes a water tank 91, a water pump 92, two water pipes 93, an electric water spray nozzle 94 and a protection component 900. The water tank 91 is fixedly installed on the top surface of the cross plate 61. The water pump 92 is fixedly installed at the bottom end inside the water tank 91. The two water pipes 93 are respectively fixedly installed on the right side of the water pump 92. The two water pipes 93 penetrate and are fixedly installed at the bottom right side of the inner wall of the water tank 91. The electric water spray nozzle 94 is fixedly installed at one end of the two water pipes 93 away from the water pump 92. The electric water spray nozzle 94 is arranged at the gap between the two U-shaped arc slide plates 2. The water pump 92 starts to pump the water in the water tank 91, and the water in the water tank 91 enters the water pipe 93. At the same time, the staff starts the electric water spray nozzle 94 through an electric wire, and the electric water spray nozzle 94 sprays the water in the water pipe 93. The sprayed water flow cleans the drill cylinder 5 to prevent a large amount of sludge from adhering to the drill cylinder 5. The protection component 900 is arranged on the left side of the water tank 91. The protection component 900 includes a baffle 95 and two inclined plates 96. The baffle 95 is fixedly installed on the left side of the water tank 91. The two inclined plates 96 are respectively fixed on the front and back of the baffle 95. The cross plate 61 drives the water tank 91 to move forward, the water tank 91 drives the baffle 95 to move forward, the baffle 95 protects the equipment from being blocked by foreign objects during the movement, and the baffle 95 drives the inclined plates 96 to move forward to prevent the branches of the bushes from sliding onto the equipment, thereby avoiding the problem that the soil collector is damaged during the movement.

[0030] While the circular shell 3 drives the cylinder 73 to move downward, the cylinder 73 drives the L-shaped plate 81 to move downward, the L-shaped plate 81 drives the T-shaped pressing plate 82 to move downward, and the T-shaped pressing plate 82 slides downward in the return plate 83. The T-shaped pressing plate 82 is inserted downward into the soil. The soil is restricted by the T-shaped pressing plate 82 to prevent the soil from cracking and causing the collection failure when the drill cylinder 5 drills downward. At the same time, the L-shaped plate 81 drives the cushion plate 84 to move downward, and the spring plate 85 in the cushion plate 84 is squeezed. Under the elastic force of the spring plate 85, the cushion plate 84 on the spring plate 85 buffers the L-shaped plate 81, and the L-shaped plate 81 reduces the vibration generated by the soil collector when collecting soil, preventing the vibration generated by the soil collector when collecting soil from being too large and causing uneven drilling force of the drill cylinder 5, thereby avoiding the problem that the amplitude of the soil collector is too large and causing equipment damage when collecting soil.

[0031] When the collection is completed, the staff starts the motor 4 in the circular shell 3 through the wire, and the rotating shaft of the motor 4 starts to reverse. The rotating shaft of the motor 4 drives the drill cylinder 5 to reset. At the same time, the staff starts the water pump 92 in the water tank 91 through the wire, and the water pump 92 starts to pump the water in the water tank 91. The water in the water tank 91 enters the water pipe 93. At the same time, the staff starts the electric water spray nozzle 94 through the wire, and the electric water spray nozzle 94 sprays the water in the water pipe 93. The sprayed water flow cleans the drill cylinder 5 to prevent a large amount of sludge from adhering to the drill cylinder 5. While the trolley 1 moves forward, the cross plate 61 drives the water tank 91 to move forward, the water tank 91 drives the baffle 95 to move forward, the baffle 95 protects the equipment from being blocked by foreign objects during the movement, and the baffle 95 drives the inclined plate 96 to move forward to prevent the branches of the bushes from slipping onto the equipment, thus avoiding the problem that the soil sampler is damaged during the movement. Embodiment

[0032] A method for using an efficient soil sampler for difficult-to-sample soil includes the following steps S1. The staff pushes the trolley 1 through the handle on the trolley 1; S2. The trolley 1 drives the cross plate 61 to move forward. The arc shovel plate 62 on the cross plate 62 shovels the uneven soil on the ground. The cross plate 61 drives the vertical plate 63 to move forward, the vertical plate 63 drives the rotating rod 64 to move forward, and the rolling roller 65 on the rotating rod 64 is affected by the ground friction force, and the rolling roller 65 rolls the uneven ground; S3. The trolley 1 drives the water tank 91 to drive the baffle 95 to move forward, and the baffle 95 drives the inclined plate 96 to move forward; S4. The staff starts the motor 4 in the circular shell 3 through the wire, and the rotating shaft of the motor 4 starts to rotate forward. The motor 4 drives the circular shell 3 to slide downward in the U-shaped arc slide plate 2, and the circular shell 3 is restricted by the telescopic rod 72; S5. The circular shell 3 drives the cylinder 73 to move downward, the cylinder 73 drives the cross plate 74 to move downward, the cross plate 74 drives the cylinder 75 to move downward, the cylinder 75 drives the pressure rod 76 to move downward, and the pressure rod 76 slides upward in the cylinder 75. Under the action of the spring force of the spring in the pressure rod 76, the pressure rod 76 tightly presses the ground; S6. The cylinder 73 drives the L-shaped plate 81 to move downward, the L-shaped plate 81 drives the T-shaped pressing plate 82 to move downward, the T-shaped pressing plate 82 slides downward in the return-shaped plate 83, and the T-shaped pressing plate 82 is inserted downward into the soil; S7. The L-shaped plate 81 drives the cushion plate 84 to move downward, and the spring plate 85 in the cushion plate 84 is squeezed; S8. The staff starts the water pump 92 in the water tank 91 through the wire, and the water pump 92 starts to pump the water in the water tank 91. The water in the water tank 91 enters the water pipe 93; S9. The staff starts the electric water spray nozzle 94 through an electric wire, and the electric water spray nozzle 94 sprays the water in the water pipe 93, and the sprayed water flow cleans the drill cylinder 5.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An efficient sampler for difficult-to-sample soil, comprising a trolley (1), two U-shaped arc-shaped slide plates (2), a circular shell (3), a motor (4) and a drill barrel (5). The two U-shaped arc-shaped slide plates (2) are respectively fixedly installed on the top surface of the trolley (1). The circular shell (3) is slidably installed between the inner walls of the two U-shaped arc-shaped slide plates (2). The motor (4) is fixed on the inner top surface of the circular shell (3). The drill barrel (5) is fixed on the bottom surface of the rotating shaft of the motor (4), and it is characterized in that: It further includes a scraping device (6), a supporting device (7), an anti-cracking device (8) and a cleaning device (9). The scraping device (6) is arranged on the left side of the trolley (1), the supporting device (7) is respectively arranged on the left and right sides of the circular shell (3), the anti-cracking device (8) is respectively arranged on the left and right sides of the supporting device (7), and the cleaning device (9) is arranged on the top surface of the scraping device (6). Among them, the scraping device (6) includes a cross plate (61), an arc scraping plate (62) and a flat pressing component (600). The cross plate (61) is fixedly installed on the left side of the trolley (1), the arc scraping plate (62) is fixed to the bottom left side of the cross plate (61), and the flat pressing component (600) is arranged in the middle of the front and back of the cross plate (61).

2. The high-efficiency sampler for difficult-to-sample soil according to claim 1, wherein: The flat pressing component (600) includes two vertical plates (63), a rotating rod (64) and a rolling roller (65). The two vertical plates (63) are respectively fixed in the middle of the front and back of the cross plate (61). The rotating rod (64) passes through and is rotatably installed between the two vertical plates (63), and the rolling roller (65) is fixed on the outer wall of the rotating rod (64).

3. The high-efficiency sampler for difficult-to-sample soil according to claim 2, wherein: Two groups of rollers are installed on the bottom surface of the trolley (1). A handle is fixedly installed on the right side of the trolley (1). Four round holes are opened on the top surface of the trolley (1). A protective cylinder is installed in the middle of the bottom surface of the trolley (1). A spiral blade is fixed on the outer wall of the drill cylinder (5). A soil return port is arranged at the bottom end inside the drill cylinder (5). The drill cylinder (5) is rotatably installed in the protective cylinder of the trolley (1). The bottom surface of the arc scraping plate (62) is chamfered.

4. An efficient sampler for difficult-to-sample soil according to claim 3, characterized in that: The supporting device (7) includes two connecting plates (71), two telescopic rods (72) and a positioning component (700). The two connecting plates (71) are respectively fixed in the middle of the left and right sides of the circular shell (3). The two telescopic rods (72) are respectively hinged to the opposite surfaces of the two connecting plates (71). One end of the two telescopic rods (72) away from the two connecting plates (71) is respectively hinged to the top surface of the trolley (1). The top surfaces of the telescopic ends of the two telescopic rods (72) are fixed with hinge discs. The bottom surfaces of the two telescopic rods (72) are respectively fixed with hinge discs. Circular rubber pads are respectively fixed on the bottom surfaces of the four pressure rods (76). The positioning component (700) is arranged in the middle of the top surface of the circular shell (3).

5. The high-efficiency sampler for difficult-to-sample soil according to claim 4, characterized in that: The positioning component (700) includes a cylinder (73), a cross plate (74), four cylinders (75) and four pressure rods (76). The cylinder (73) is fixed in the middle of the top surface of the circular shell (3). The cross plate (74) is fixed in the middle of the top surface of the cylinder (73). The four cylinders (75) are respectively fixed at the bottom edges of the cross plate (74). The four pressure rods (76) are respectively slidably installed inside the four cylinders (75). Springs are respectively fixed between the top surfaces of the four pressure rods (76) and the inner tops of the four cylinders (75). The four pressure rods (76) are respectively slidably arranged in the four round holes of the trolley (1).

6. The high-efficiency sampler for difficult-to-sample soil according to claim 5, wherein: The anti-cracking device (8) includes two L-shaped plates (81), two T-shaped pressing plates (82), two loop-shaped plates (83) and a buffer assembly (800). The two L-shaped plates (81) are respectively fixed to the bottom of the front and back of the cylinder (73). The two T-shaped pressing plates (82) are respectively fixed to one end of the two L-shaped plates (81) away from the cylinder (73). The two loop-shaped plates (83) are respectively fixed to the middle of the front and back of the cart (1). The two T-shaped pressing plates (82) are respectively slidably installed on the inner walls of the two loop-shaped plates (83). The buffer assembly (800) is arranged in the middle of the bottom surfaces of the two L-shaped plates (81).

7. The high-efficiency sampler for difficult-to-sample soil according to claim 6, wherein: The buffer assembly (800) includes four cushion plates (84) and two spring plates (85). The two cushion plates (84) are respectively fixed to the middle of the bottom surfaces of the two L-shaped plates (81). The other two cushion plates (84) are respectively fixed to the top surface of the cart (1). The two spring plates (85) are respectively fixed between the four cushion plates (84). The two spring plates (85) are respectively arranged on the front and back of the two U-shaped arc-shaped sliding plates (2).

8. An efficient sampler for difficult-to-sample soil according to claim 7, characterized in that: The cleaning device (9) includes a water tank (91), a water pump (92), two water pipes (93), an electric water spray nozzle (94) and a protection assembly (900). The water tank (91) is fixedly installed on the top surface of the cross plate (61). The water pump (92) is fixedly installed at the bottom end inside the water tank (91). The two water pipes (93) are respectively fixedly installed on the right side of the water pump (92). The two water pipes (93) penetrate and are fixedly installed at the bottom right side of the inner wall of the water tank (91). The electric water spray nozzle (94) is fixedly installed at one end of the two water pipes (93) away from the water pump (92). The electric water spray nozzle (94) is arranged at the gap between the two U-shaped arc-shaped sliding plates (2). The protection assembly (900) is arranged on the left side of the water tank (91).

9. An efficient sampler for difficult-to-sample soil according to claim 8, characterized in that: The protection assembly (900) includes a baffle plate (95) and two inclined plates (96). The baffle plate (95) is fixedly installed on the left side of the water tank (91). The two inclined plates (96) are respectively fixed to the front and back of the baffle plate (95).

10. A method for using an efficient sampler for difficult-to-sample soil according to any one of claims 1-9, characterized in that: including the following steps S1. The staff pushes the cart (1) through the handle on the cart (1). S2. The cart (1) drives the cross plate (61) to move forward. The arc-shaped shovel plate (62) on the cross plate (61) shovels the uneven soil on the ground. The cross plate (61) drives the vertical plate (63) to move forward. The vertical plate (63) drives the rotating rod (64) to move forward. The rolling roller (65) on the rotating rod (64) is affected by the ground friction force, and the rolling roller (65) rolls the uneven ground. S3. The cart 1 drives the water tank (91) to drive the baffle plate (95) to move forward. The baffle plate (95) drives the inclined plate (96) to move forward. S4. The staff starts the motor (4) in the circular shell (3) through the wire. The rotating shaft of the motor (4) starts to rotate forward. The motor (4) drives the circular shell (3) to slide down in the U-shaped arc-shaped sliding plate (2). The circular shell (3) is restricted by the telescopic rod (72). S5. The round shell (3) drives the cylinder (73) to move downward. The cylinder (73) drives the cross plate (74) to move downward. The cross plate (74) drives the cylinder (75) to move downward. The cylinder (75) drives the pressure rod (76) to move downward. The pressure rod (76) slides upward in the cylinder (75), and under the action of the spring force of the pressure rod (76), the pressure rod (76) tightly presses against the ground. S6. The cylinder (73) drives the L-shaped plate (81) to move downward. The L-shaped plate (81) drives the T-shaped pressing plate (82) to move downward. The T-shaped pressing plate (82) slides downward in the square plate (83). The T-shaped pressing plate (82) is inserted downward into the soil. S7. The L-shaped plate (81) drives the backing plate (84) to move downward. The spring plate (85) in the backing plate (84) is squeezed. S8. The worker starts the water pump (92) in the water tank (91) through an electric wire. The water pump (92) starts to pump the water in the water tank (91). The water in the water tank (91) enters the water pipe (93). S9. The worker starts the electric water spray nozzle (94) through an electric wire. The electric water spray nozzle (94) sprays the water in the water pipe (39). The sprayed water flow cleans the drill cylinder (5).

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