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CN-121994532-A - Sampling device for soil detection and application method thereof

CN121994532ACN 121994532 ACN121994532 ACN 121994532ACN-121994532-A

Abstract

The invention relates to the technical field of soil detection, in particular to a sampling device for soil detection and a using method thereof, wherein the sampling device comprises a bracket component, a cleaning component, a sampling component and a shell, and the bottom of the shell is provided with an opening; the cleaning assembly comprises a central shaft, a cleaning toothed plate and a toothed plate mounting frame, wherein the central shaft is vertically arranged in a shell in a rotating mode, the toothed plate mounting frame is fixed at the lower end of the central shaft and penetrates through the opening, the sampling assembly comprises a plurality of sampling ring cutters, a plurality of through holes penetrating through the toothed plate mounting frame up and down are formed in the toothed plate mounting frame, the sampling ring cutters are installed in the through holes in a one-to-one correspondence mode, a hammering assembly is arranged in the shell, the sampling ring cutters move downwards when the hammering assembly hammers, and a main spring is arranged in the shell. According to the invention, the cleaning toothed plate is gradually inserted into the soil by the elasticity of the main spring on the toothed plate mounting frame, so that the floating soil can be cleaned and sampled stably.

Inventors

  • ZHANG JIE
  • Miao Yanzhe
  • SU LIHENG
  • Ping Jili
  • WANG CHUANCHUAN

Assignees

  • 润鲁智科检验集团有限公司

Dates

Publication Date
20260508
Application Date
20260408

Claims (10)

  1. 1. The sampling device for soil detection comprises a bracket component (1), a cleaning component (2), a sampling component (3) and a shell (4), and is characterized in that the bracket component (1) is fixed on one vertical side of the shell (4), and an opening (41) is formed in the bottom of the shell (4); the cleaning assembly (2) comprises a central shaft (21), a cleaning toothed plate (22) and a toothed plate mounting frame (23), wherein the central shaft (21) is vertically arranged in the shell (4) in a rotating mode, the toothed plate mounting frame (23) is fixed at the lower end of the central shaft (21) and penetrates through the opening (41), and the cleaning toothed plate (22) is arranged on the lower surface of the toothed plate mounting frame (23); The sampling assembly (3) comprises a plurality of sampling ring cutters (31), a plurality of penetrating holes (231) penetrating up and down are formed in the toothed plate mounting frame (23), the sampling ring cutters (31) are installed in the penetrating holes (231) in a one-to-one correspondence mode, the hammering assembly (8) is arranged in the shell (4), and the sampling ring cutters (31) move downwards when the hammering assembly (8) is used for hammering; The novel cleaning rack is characterized in that a main spring (6) is arranged in the shell (4), the main spring (6) is sleeved on the central shaft (21), and the main spring (6) pushes the cleaning rack (22) downwards in a layered manner through abutting on the rack mounting rack (23).
  2. 2. The sampling device for soil detection according to claim 1, wherein the hammering assembly (8) comprises a hammering block (81) and a driving rotating shaft (82), a vertical guide sleeve (85) is fixedly arranged in the housing (4), the hammering block (81) is slidably connected in the guide sleeve (85), a spiral driving blade (84) is arranged on the outer wall of the driving rotating shaft (82), a protruding block (813) is fixedly arranged on the hammering block (81), the protruding block (813) extends to the position of the driving blade (84), the protruding block (813) is pushed to move upwards by rotation of the driving blade (84), and the spiral number of turns of the driving blade (84) is greater than 1 turn and less than 1.5 turns.
  3. 3. The sampling device for soil detection according to claim 2, wherein the hammering block (81) comprises an annular body (811) and a driving sleeve (812), the driving sleeve (812) is fixed on the upper surface of the annular body (811), the lower surface of the annular body (811) is used for hammering the sampling ring knife (31), the driving sleeve (812) is slidably matched in the guide sleeve (85), the driving sleeves (812) are provided with a plurality of driving shafts (82), the protruding blocks (813) are fixed on the inner wall of the driving sleeve (812), and the driving shafts (82) synchronously drive the protruding blocks (813) to move upwards.
  4. 4. A soil testing sampling device according to claim 3, characterized in that the driving shaft (82) is coaxially and fixedly provided with a first gear (53), the central shaft (21) is connected with a second gear (54) through a one-way bearing (52), the plurality of first gears (53) are meshed with the second gear (54), the driving shaft (82) is connected with a driving motor (51) with positive and negative rotation functions, the side wall of the guiding sleeve (85) is provided with a locking component (9), and the hammering block (81) moves to the highest position to lock the locking component (9).
  5. 5. The sampling device for soil detection of claim 4, wherein the locking assembly (9) comprises a bolt (91) and a return spring (92), the bolt (91) is horizontally arranged, a positioning hole (8121) is formed in the side wall of the driving sleeve (812), and the return spring (92) is used for providing a driving force for moving the bolt (91) to the positioning hole (8121).
  6. 6. The sampling device for soil detection according to claim 5, wherein an unlocking rod (93) is fixedly arranged on the central shaft (21), the unlocking rod (93) is vertically arranged, the lower end of the unlocking rod (93) is wedge-shaped, one end of the bolt (91) far away from the positioning hole (8121) is connected with an L-shaped pull rod (94), and the unlocking rod (93) moves downwards to horizontally push the L-shaped pull rod (94) so that the bolt (91) is separated from the positioning hole (8121).
  7. 7. The sampling device for soil detection according to claim 1, wherein a horizontal hole (232) is formed in the toothed plate mounting frame (23), an anti-falling component (7) is arranged in the horizontal hole (232), the anti-falling component (7) comprises a pre-tightening spring (71), an adjusting plug (72) and a resistance block (73), the horizontal hole (232) is communicated with the through hole (231), the resistance block (73) is located at one end of the horizontal hole (232) connected with the through hole (231), the adjusting plug (72) is in threaded connection with the horizontal hole (232), one end of the pre-tightening spring (71) is abutted to the adjusting plug (72), and the other end of the pre-tightening spring is abutted to the resistance block (73).
  8. 8. The sampling device for soil detection according to claim 1, wherein a cleaning brush (25) is provided on the lower surface of the toothed plate mounting frame (23), the cleaning brush (25) is attached to the back surface of the cleaning toothed plate (22), and the cleaning brush (25) rotates along with the toothed plate mounting frame (23) to clean the scraped off floating soil.
  9. 9. The sampling device for soil detection according to claim 1, wherein the sampling ring (31) is provided with a connector (32), the lower end of the connector (32) is in threaded connection with the sampling ring (31), the upper end of the connector (32) is used for hammering, the bracket assembly (1) comprises a fixing frame (11) and a roller (12), the fixing frame (11) is fixed with the housing (4), and the roller (12) is arranged on one side, far away from the housing (4), of the fixing frame (11).
  10. 10. The use method of the sampling device for soil detection is characterized by comprising a step of cleaning floating soil and a step of sampling the soil, wherein the step of cleaning the floating soil comprises the step of placing the sampling device to enable a cleaning toothed plate (22) to abut against the ground, a main spring (6) is pressed, the cleaning toothed plate (22) rotates to scrape off the floating soil, the main spring (6) pushes down a toothed plate mounting frame (23) step by step, the soil sampling step comprises a hammering assembly (8) for repeatedly hammering a sampling ring cutter (31) to enable the sampling ring cutter (31) to be inserted into the soil, and the sampling ring cutter (31) is taken out by lifting the sampling device through a bracket assembly (1).

Description

Sampling device for soil detection and application method thereof Technical Field The invention relates to the technical field of soil detection, in particular to a sampling device for soil detection and a use method thereof. Background The soil detection is a key technical means for realizing soil quality assessment, pollution accident diagnosis, dynamic monitoring of land treatment and background value investigation through systematic analysis of the physical and chemical properties of the soil. In this process, the performance of the soil sampling directly affects the representativeness of the sample and the accuracy of the detection data, the soil sampling is divided into depth sampling and surface sampling, and the surface sampling is soil sampling of the earth's surface. The sampling process is that firstly, sundries on the surface layer of the soil are removed, then, surface floating soil is excavated to expose the soil layer below, then, a sampling ring cutter is hammered into the soil from the position of exposing the soil layer, and then, the sampling ring cutter is taken out, and the sampling ring cutter is internally provided with the collected soil with specific volume and shape. The utility model discloses a grant chinese patent of bulletin number CN119354597B, including the support subassembly, clear away subassembly and sampling component, the inside subassembly that clears away that sets up of support subassembly, clear away the inside sampling component that sets up of subassembly, clear away the subassembly and include four parallel arrangement's commentaries on classics roller, the cutting band is cup jointed in the commentaries on classics roller outside, a plurality of cutting knives parallel with commentaries on classics roller outside the cutting band is fixed, four same one ends of commentaries on classics roller are connected with the band pulley, drive belt has been cup jointed between two adjacent band pulleys, the commentaries on classics roller passes through servo motor and drives, the cutting knife includes the connection piece in the cutting band outside, one side equipartition of cutting band is kept away from to the connection piece a plurality of parallel arrangement's wedge, the outside of wedge is fixed to set up the blade, the commentaries on classics roller drives the cutting band and rotates when the cutting band, the cutting knife moves to below position and soil contact, and clear up soil on the soil surface layer. However, the support assembly is placed on the ground, and when the soil surface layer is relatively soft, the cutter may be inserted too deeply under the action of self weight, so that the amount of the floating soil removed by a single cutting is too large. Because the volume of the removed soil is obviously increased, and the deep soil is possibly more compact, the running resistance of the cutting knife is rapidly increased, the risk of exceeding the design load of the device is greatly increased, and the overload of the motor is easily caused. When overload is encountered, the worker can only temporarily remove the load by lifting the bracket assembly, and the device can be restored to operation. However, when the support assembly is placed on the ground again, the cutting depth is still completely dependent on the dead weight and soil conditions, and the overload is most likely caused by reinsertion, so that the operation is forced to be interrupted repeatedly, and the floating soil in the whole cleaning area is difficult to be cleaned uniformly and thoroughly to the required depth. Disclosure of Invention The invention provides a sampling device for soil detection, and aims to solve the problem that in the related art, in the soil cleaning process of a soil surface layer, the single cleaning floating soil is excessively large, so that the device is unstable in operation. The invention discloses a sampling device for soil detection, which comprises a bracket component, a cleaning component, a sampling component and a shell, wherein the bracket component is fixed on one vertical side of the shell, an opening is formed in the bottom of the shell, the cleaning component comprises a central shaft, a cleaning toothed plate and a toothed plate mounting frame, the central shaft is vertically arranged in the shell in a rotating mode, the toothed plate mounting frame is fixed at the lower end of the central shaft and penetrates through the opening, the cleaning toothed plate is arranged on the lower surface of the toothed plate mounting frame, the sampling component comprises a plurality of sampling ring cutters, a plurality of penetrating holes penetrating up and down are formed in the toothed plate mounting frame, the sampling ring cutters are correspondingly arranged in the penetrating holes one by one, a hammering component is arranged in the shell, the sampling ring cutters move downwards during hammering of the hammering component, a main spring is ar