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WO-2026091273-A1 - SAMPLING DEVICE FOR SOIL TESTING AND METHOD OF USE THEREOF

WO2026091273A1WO 2026091273 A1WO2026091273 A1WO 2026091273A1WO-2026091273-A1

Abstract

The present invention discloses a sampling device for soil testing and a method of use thereof, comprising a sampling device body, wherein the sampling device body comprises a helical insertion assembly and an internal sampling assembly, and the helical insertion assembly comprises a first power unit, a second power unit, a mounting seat, a plug-in mounting slot, an insertion shaft, a pointed tip, a helical cutting blade, and a locking power unit. The present invention has the following advantages and effects: the insertion shaft is installed by means of a detachable plug-in connection, thereby achieving independence of the insertion shaft; even if the helical cutting blade is damaged, only the insertion shaft alone needs to be replaced, without the need to discard the entire sampling device body, thus improving resource utilization; the locking power unit not only locks the insertion shaft inserted into the plug-in mounting slot with the plug-in mounting slot, but also provides upward movement power for the internal sampling assembly, and can automatically extract soil without requiring manual force application, thereby saving time and effort.

Inventors

  • CENG, Chenggang
  • CENG, Kangyang
  • YANG, JIANHUA
  • HE, WEI

Assignees

  • 太科技术有限公司

Dates

Publication Date
20260507
Application Date
20241224
Priority Date
20241029

Claims (10)

  1. A soil sampling device, characterized in that it includes a sampling device body, wherein the sampling device body includes: A spiral insertion assembly capable of being inserted into underground soil layers; and An internal sampling component is installed within a spiral insertion assembly and can be inserted into the underground soil layer along with the spiral insertion assembly to collect soil samples from bottom to top; wherein, The spiral insertion assembly includes a first power unit capable of vertical height adjustment, a second power unit disposed on the first power unit, and a mounting base (11) disposed on the second power unit and capable of circumferential rotation under the drive of the second power unit; the lower end of the mounting base (11) is provided with a plug-in mounting groove (12), and a vertical insertion shaft (21) is inserted into the plug-in mounting groove (12); the lower end of the insertion shaft (21) is provided with a sharp corner (22) through threaded engagement, and a spiral blade (23) is fixedly provided on the outer periphery of the insertion shaft (21); The insertion shaft (21) and the plug-in mounting slot (12) form a detachable plug-in connection. A locking power unit is provided in the mounting base (11) to lock the insertion shaft (21) inserted into the plug-in mounting slot (12) and the plug-in mounting slot (12). The locking power unit can also provide upward movement power for the internal sampling component.
  2. According to claim 1, a soil sampling device is characterized in that: the upper end of the insertion shaft (21) has an upper access seat (24) fixed thereto, the upper access seat (24) is adapted to the plug-in mounting groove (12) and can be inserted upward into the plug-in mounting groove (12); the locking power unit includes an inner expansion block (31) fixed in the plug-in mounting groove (12), the inner expansion block (31) is provided with a horizontal inner block (32) and a compression spring (33) inside, the horizontal inner block (32) will remain to the left under the compression force of the compression spring (33); The upper end of the upper access seat (24) has an inner expansion groove (25) on the left half. When the upper access seat (24) is inserted into the plug-in mounting groove (12), the inner expansion block (31) will extend into the inner expansion groove (25). The upper access seat (24) has a second through hole (342) on the left side. The horizontal inner block (32) can move to the left and pass through the second through hole (342). The left side wall of the plug-in mounting slot (12) is provided with an embedded inner groove (343). The horizontal inner block (32) can pass through the second through hole (342) and enter into the embedded inner groove (343) to lock the upper access seat (24) and the inner expansion block (31).
  3. According to claim 2, a soil sampling device is characterized in that: the inner expansion block (31) has a transversely penetrating inner expansion cavity (311) inside, the right side of the inner expansion cavity (311) is open, and a horizontal inner insert (32) and a compression spring (33) can be inserted into the inner expansion cavity (311) through the right side of the inner expansion cavity (311); a blocking block (35) is provided on the left side of the inner expansion cavity (311), and the blocking block (35) and the inner expansion block (31) are fixed together by a first fixing member (351); A first through hole (341) is formed between the lower inner wall of the blocking block (35) and the inner expansion cavity (311). When the inner expansion block (31) extends into the inner expansion groove (25), the first through hole (341) and the second through hole (342) will communicate with each other. A side cover plate (36) is provided on the right side of the inner expansion cavity (311). The side cover plate (36) is fixed to the inner expansion block (31) by a second fixing member (361). The two ends of the compression spring (33) are respectively connected to the horizontal inner insert (32) and the side cover plate (36).
  4. According to claim 3, a soil sampling device is characterized in that: a square main accompanying block is provided on the right side of the upper end of the horizontal inner block (32), the main accompanying block is spliced together by a first accompanying block (41) and a second accompanying block (42) with the cross-sectional shape of right triangles, the first accompanying block (41), the second accompanying block (42) and the horizontal inner block (32) are fixed together by a third fixing member (43); the second accompanying block (42) can be connected with the blocking block (35) to prevent the horizontal inner block (32) from detaching from the inner expansion cavity (311); The upper left end of the second accompanying block (42) is provided with a first expansion notch (44) with a cross-sectional shape of a right triangle. The upper end of the inner expansion block (31) is provided with a first drainage hole (45) that communicates with the first expansion notch (44). The mounting base (11) is provided with a second drainage hole (46) that communicates with the first drainage hole (45). The second drainage hole (46) extends to the right outer wall of the mounting base (11). A first drainage interface seat (47) that communicates with the second drainage hole (46) is fixedly provided on the right outer wall of the mounting base (11).
  5. According to claim 41, a soil sampling device is characterized in that: the insertion shaft (21) has a hollow collection cavity (51) inside, and the surface of the insertion shaft (21) has a plurality of collection openings (52) communicating with the collection cavity (51). As the insertion shaft (21) is inserted into the underground soil layer and the spiral blade (23) rotates, the soil will fall from the collection openings (52) into the collection cavity (51). The internal sampling assembly includes a stage (53), which is attached to the inner peripheral wall of the collection cavity (51). Soil falls into the collection cavity (51) and remains on the stage (53). The upper end of the stage (53) has a counterweight (54), and the upper end of the counterweight (54) is fixedly provided with a vertical displacement rod (55). The upper end of the displacement rod (55) extends upward and extends into the upper end access seat (24). By pulling the displacement rod (55) upward, the stage (53) with soil is moved upward.
  6. According to claim 52, a soil sampling device is characterized in that: the upper access seat (24) is provided with a discharge cavity (56) communicating with the collection cavity (51), and the lower end of the upper access seat (24) is provided with discharge holes (57) on both sides to communicate with the discharge cavity (56) and the outside. The upper sides of the platform (53) and the counterweight (54) have smooth inclined surfaces (58) with the inner side higher than the outer side. When the platform (53) moves up to the discharge cavity (56), the soil left on the platform (53) will be discharged from the discharge hole (57) along the smooth inclined surface (58).
  7. According to claim 63, a soil sampling device is characterized in that: a vertical main displacement hole (61) is provided inside the mounting base (11), and the second drainage hole (46) bypasses the main displacement hole (61); the upper end of the upper end of the access base (24) has a first auxiliary displacement hole (62) formed by the mating side cover plate (36), and when the upper end access base (24) is inserted into the plug-in mounting groove (12), the first auxiliary displacement hole (62) will be connected to the main displacement hole (61). The shifting holes (61) are connected; the upper end access seat (24) is provided with a second shifting hole (63), which is located below the first shifting hole (62) and above the discharge cavity (56). The first shifting hole (62), the second shifting hole (63) and the discharge cavity (56) are connected in sequence. The upper end of the shifting rod (55) passes upward through the second shifting hole (63) and then through the first shifting hole (62). A side extension block (65) is fixedly installed on the right side of the upper end of the displacement rod (55) by a fourth fixing member (64). A secondary accompanying block is fixedly installed at the lower end of the side extension block (65). The secondary accompanying block is spliced together by a third accompanying block (71) and a fourth accompanying block (72), both of which have right-angled triangular cross-sections. The third accompanying block (71), the fourth accompanying block (72), and the side extension block (65) are fixed together by a fifth fixing member (73). The lower right end of the four accompanying blocks (72) is provided with a second expansion notch (74) with a cross-sectional shape of a right triangle. The upper end access seat (24) is provided with a third drainage hole (75) that communicates with the second expansion notch (74). The mounting seat (11) is provided with a fourth drainage hole (76) that communicates with the third drainage hole (75). A second drainage interface seat (77) that communicates with the fourth drainage hole (76) is fixedly provided on the outer right side of the mounting seat (11).
  8. According to claim 74, a soil sampling device is characterized in that: a positioning top block (81) is fixedly provided at the upper end of the upper access seat (24), and a positioning top groove (82) adapted to the positioning top block (81) is provided in the plug-in installation groove (12). The positioning top block (81) can be inserted into the positioning top groove (82) for positioning, so that the first through hole (341) and the second through hole (342) are connected, and the third drainage hole (75) and the fourth drainage hole (76) are connected.
  9. According to claim 1, a soil sampling device for testing is characterized in that: the first power unit includes a support seat (91) as a bearing structure, a vertical cylinder (92) is fixedly installed at the upper end of the support seat (91), a horizontal displacement support plate (93) is fixedly installed with the output shaft of the cylinder (92) facing upward, an outer sleeve block (94) is fixedly installed on the cylinder (92), an inner hole is opened in the outer sleeve block (94), a vertical guide shaft (95) is fixedly installed on the displacement support plate (93), and the guide shaft (95) passes through the inner hole so that the displacement support plate (93) can move vertically stably; The second power unit includes a control motor (96) fixedly mounted on the upper end of the displacement support plate (93). The output shaft of the control motor (96) extends downward to the lower end of the displacement support plate (93). The mounting base (11) is fixedly mounted on the output shaft of the control motor (96). The mounting base (11) rotates circumferentially under the drive of the output shaft of the control motor (96).
  10. A method of using a soil sampling device for testing, applied to the soil sampling device for testing according to any one of claims 1-96, characterized in that it includes the following steps: After the motor (96) drives the insertion shaft (21) to rotate circumferentially, the cylinder (92) controls the insertion shaft (21) to be inserted into the underground soil layer for soil sampling.

Description

A soil sampling device and its usage method Technical Field This invention relates to the field of soil testing, and in particular to a soil sampling device and its method of use. Background Technology Soil testing is one of the most important steps in understanding the quality of the soil environment. This process provides fundamental data for preventing and controlling soil pollution hazards, and for dynamic analysis of the degree and trend of soil pollution. Extracting samples from the underground soil layer is very cumbersome, and digging a pit directly is time-consuming and labor-intensive. Therefore, soil testing sampling devices have been developed. However, existing soil sampling devices have the following drawbacks under actual operating conditions: Firstly, to facilitate easier insertion into the underground soil layer, soil testing sampling devices typically include an insertion shaft and a control motor. The insertion shaft has helical blades on its outer circumference, which rotate to easily insert into the underground soil layer for sampling. However, soil contains solid particles, stones, or hard metals, making the helical blades highly susceptible to rigid impacts and resulting in a high damage rate. Furthermore, in existing soil testing sampling devices, the insertion shaft is integrally molded with the device during manufacturing. When the helical blades on the insertion shaft are damaged, the entire soil testing sampling device must be replaced, leading to low resource utilization. Secondly, the process of extracting the soil by pulling it up is usually done manually, which is time-consuming and labor-intensive. Summary of the Invention The purpose of this invention is to provide a soil sampling device and its usage method to solve the problems mentioned in the background art. The above-mentioned technical objective of the present invention is achieved through the following technical solution: To achieve the above objectives, the present invention provides a soil sampling device, comprising a sampling device body, wherein the sampling device body includes: A spiral insertion assembly capable of being inserted into underground soil layers; and An internal sampling component is installed within a spiral insertion assembly and can be inserted into the underground soil layer along with the spiral insertion assembly to collect soil samples from bottom to top; wherein, The spiral insertion assembly includes a first power unit capable of vertical height adjustment, a second power unit disposed on the first power unit, and a mounting base disposed on the second power unit and capable of circumferential rotation under the drive of the second power unit; the lower end of the mounting base is provided with a plug-in mounting groove, and a vertical insertion shaft is inserted into the plug-in mounting groove; the lower end of the insertion shaft is provided with a sharp corner through thread engagement, and a spiral blade is fixedly provided on the outer periphery of the insertion shaft. The insertion shaft and the plug-in mounting slot form a detachable plug-in connection. A locking power unit is provided in the mounting base to lock the insertion shaft inserted into the plug-in mounting slot to the plug-in mounting slot. The locking power unit can also provide upward movement power for the internal sampling component. Furthermore, the upper end of the insertion shaft has an upper access seat fixed thereto, the upper access seat is adapted to the plug-in mounting slot and can be inserted upward into the plug-in mounting slot; the locking power unit includes an inner expansion block fixed in the plug-in mounting slot, the inner expansion block is provided with a horizontal inner insert and a compression spring, the horizontal inner insert will remain to the left under the compression force of the compression spring; The upper end of the upper connector has an inner expansion slot on the left half. When the upper connector is inserted into the plug-in mounting slot, the inner expansion block will extend into the inner expansion slot. The upper connector has a second through hole on the left side. The horizontal inner block can move to the left and pass through the second through hole. The left side wall of the plug-in mounting slot is provided with an embedded inner groove. The horizontal inner block can be inserted into the embedded inner groove after passing through the second through hole, so as to lock the upper access seat and the inner expansion block. The further configuration is as follows: the inner expansion block has a transversely penetrating inner expansion cavity, the right side of which is open, allowing a horizontal inner insert and a compression spring to be inserted into the inner expansion cavity through the right side; a blocking block is provided on the left side of the inner expansion cavity, and the blocking block and the inner expansion block are fixed together by a first fixin