A soil flexible sampling and detecting device for landscaping engineering

Abstract

The application relates to the technical field of soil detection, in particular to a flexible soil sampling and detection device for landscaping engineering. The device comprises a handheld frame, a boring cylinder rotatably connected to the handheld frame, a fixing ring fixedly connected to the handheld frame through a mounting frame, the fixing ring being rotatably connected to the boring cylinder, a sampling cylinder arranged in the boring cylinder, a motor fixedly connected to the handheld frame, a gear set arranged between the output shaft of the motor and the boring cylinder, a drill bit fixedly connected to the boring cylinder, a plurality of fixing shells fixedly connected to the boring cylinder in a circumferential array, a first fixing frame rotatably connected to the fixing shells, and a split plate fixedly connected to the first fixing frame. The split plate arranged in a circumferential array is split at the end of drilling to provide a prismatic base for the sample, thereby providing an upward supporting force for the subsequent sample taking, reducing the possibility of sample breakage during the taking process, and improving the accuracy of subsequent detection and analysis results.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection, and in particular to a flexible soil sampling and detection device for landscaping projects. Background Art

[0002] The physical, chemical, and biological properties of garden soils directly determine the growth and development of plants within them. Maintaining appropriate moisture, nutrient content, and a good structure in these soils (especially when moist) is crucial for the healthy growth of garden plants. Therefore, soil testing is a key means of scientifically assessing the environmental quality of garden soils and implementing targeted management. Its core purpose is to dynamically monitor the degree and trends of garden soil contamination, thereby effectively preventing and controlling pollution hazards and protecting the plant growth environment. Specific garden soil testing tasks typically include surveys of current soil environmental quality, regional soil environmental background values, investigations into soil pollution incidents, and dynamic observations of contaminated soil.

[0003] Among the common techniques for obtaining garden soil samples, downhole sampling tubes are widely used. However, garden soils (especially those that need to remain moist) often have high moisture content and relatively poor air permeability. When sampling such soils, the air at the bottom cannot be replenished promptly during the withdrawal of the sampling tube, which can easily form localized negative pressure zones. In these situations, the risk of the soil sample column within the tube fracturing due to negative pressure increases significantly. This not only compromises the structural integrity of the sample but also directly affects the accuracy of subsequent testing and analysis results (such as contamination distribution and nutrient content), ultimately hindering the reliable assessment and effective management of garden soil environmental quality. Summary of the Invention

[0004] In order to overcome the above shortcomings, the present invention provides a flexible soil sampling and testing device for landscaping projects.

[0005] The technical solution is as follows: A flexible soil sampling and detection equipment for landscaping projects, including a handheld frame, the handheld frame is rotatably connected to a tunneling barrel, the handheld frame is fixed with a fixed ring through a mounting frame, the fixed ring is rotatably connected to the tunneling barrel, a sampling barrel is provided in the tunneling barrel, a motor is fixed to the handheld frame, the output shaft of the motor and the tunneling barrel are transmitted through a gear set, the tunneling barrel is fixed with a drill bit, the tunneling barrel is fixed with a fixed shell distributed in a circumferential array, a first fixed frame is rotatably connected in the fixed shell, the first fixed frame is fixed with a splicing plate, and all the splicing plates are commonly provided with a splicing mechanism for controlling the state of the splicing plates.

[0006] Furthermore, the drill bit is provided with circumferentially evenly distributed embedded grooves, and blades are fixedly connected to the circumferentially evenly distributed embedded grooves on the drill bit.

[0007] Furthermore, the blade is located on a side of the drill bit corresponding to the embedded groove close to the tunneling barrel.

[0008] Furthermore, the splicing mechanism includes hinged plates distributed in a circumferential array, and the hinged plates distributed in the circumferential array are respectively rotatably connected to the corresponding splicing plates. The hinged plates are hinged with sliding plates, and the tunneling barrel and the fixed shell are both slidably connected to the sliding plates. A sliding ring is slidably connected inside the tunneling barrel, and the sliding ring is slidably connected to all the sliding plates. The sliding ring is fixed with a pressing frame, and the pressing frame is slidably connected to the fixed ring.

[0009] Furthermore, the splicing mechanism also includes a fixing member, which is fixed to the handheld frame. The fixing member is slidably connected to a limiting sleeve, and the limiting sleeve is used to limit the position of the pressing frame.

[0010] Furthermore, the tunneling barrel is rotatably connected to a blocking plate, a through hole is provided in the middle of the blocking plate, and a one-way valve is provided in the through hole.

[0011] Furthermore, the tunneling barrel is slidably connected to a blocking barrel, and the blocking barrel is used to block all the spliced ​​plates. The blocking barrel is fixedly connected to a second fixing frame, and the second fixing frame is slidably connected to the tunneling barrel. The second fixing frame is rotatably connected to a rotating frame, and the rotating frame is slidably and rotatably connected to the tunneling barrel. The rotating frame is slidably connected to the fixed ring, and a mirror-distributed fixing plate is fixed on the rotating frame, and a power tension spring is arranged between the fixing plate and the fixing ring.

[0012] Furthermore, the handheld frame is slidably connected to a limiting member, and the limiting member is used to limit the movement of the rotating frame.

[0013] Furthermore, the tunneling tube is provided with air injection cavities distributed in a circumferential array, and the tunneling tube is provided with an air storage cavity, and the air injection cavities distributed in the circumferential array are all connected to the air storage cavity.

[0014] Furthermore, a sealing ring is slidably and rotatably connected in the boring barrel, the sealing ring is located in the air storage chamber, the pressing frame and the rotating frame are both slidably connected to the sealing ring, the sealing ring is fixed with a sliding frame, and the sliding frame is slidably connected to the fixed ring.

[0015] The beneficial effects of the present invention are as follows: the present invention uses circumferentially distributed splicing plates to be spliced ​​at the end of drilling, providing a prism-shaped base for the sample, thereby providing an upward supporting force for subsequent sample removal, reducing the possibility of sample breakage during the removal process, and improving the accuracy of subsequent detection and analysis results; the splicing plates are shielded by the sealing cylinder during the drilling process to prevent the splicing plates from damaging the soil to be sampled during the drilling process, reducing the probability of sample damage and improving the reference value of the sample; the sealing ring cooperates with the sliding frame, and during the sample removal process, air is injected into the air injection chamber through the air storage chamber to the bottom of the device, reducing the probability of sample breakage during the sample removal process and improving the accuracy of subsequent detection and analysis results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the internal structure of the tunneling tube of the present invention;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the handheld frame and the fixing ring of the present invention;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the tunneling tube and the fixed shell of the present invention;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the hinge plate and the sliding plate of the present invention;

[0021] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0022] Figure 7 Schematic diagram of the three-dimensional structure of the drill bit and blade of the present invention;

[0023] Figure 8 It is a sectional view of the three-dimensional structure of the fixing plate and the power tension spring of the present invention;

[0024] Figure 9 It is a schematic diagram of the three-dimensional structure of the blocking cylinder and the second fixing frame of the present invention;

[0025] Figure 10 It is a schematic diagram of the three-dimensional structure of the air injection cavity and the air storage cavity of the present invention.

[0026] Explanation of the accompanying drawings: 1. Handheld frame, 101. Fixed ring, 2. Tunneling barrel, 3. Motor, 4. Drill bit, 41. Blade, 5. Fixed shell, 6. First fixed frame, 7. Spliced ​​plate, 8. Hinge plate, 9. Sliding plate, 10. Sliding ring, 11. Pressing frame, 110. Fixed part, 111. Limiting sleeve, 12. Sealing plate, 13. Sealing barrel, 14. Second fixed frame, 15. Rotating frame, 16. Fixed plate, 17. Power spring, 18. Limiting part, 19. Air injection chamber, 20. Air storage chamber, 21. Sealing ring, 22. Sliding frame. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and examples.

[0028] Example 1

[0029] This embodiment discloses a flexible soil sampling and testing device for landscaping projects, which is used to assist in removing soil during the sampling process and reduce the impact of a negative pressure environment on the structural integrity of the soil sample.

[0030] like Figure 1-Figure 7 As shown, the detection equipment includes a handheld frame 1, which has handles on the left and right sides for the user to hold in hand. The handheld frame 1 is rotatably connected to the excavation tube 2, and a sampling tube is arranged in the excavation tube 2. The sampling tube is made of transparent plastic material, which is a cylindrical pipe that passes through from top to bottom. The upper part of the sampling tube can pass through the excavation tube 2 from above and be fixed by the handheld frame 1, thereby preventing the sampling tube from rotating during the sampling process and affecting the sampling results. After the installation is completed, the sampling tube is tightly attached to the excavation tube 2. A motor 3 is fixed to the upper side of the handheld frame 1, and the output shaft of the motor 3 is driven by a gear set to the excavation tube 2. A drill bit 4 is fixed to the lower side of the excavation tube 2. When in use, the output shaft of the motor 3 drives the excavation tube 2 and the drill bit 4 to rotate together, thereby excavating the soil and driving the sampling tube to take samples. There are circumferentially evenly distributed embedded grooves, and blades 41 are fixedly connected to the circumferentially evenly distributed embedded grooves on the drill bit 4 to facilitate crushing impurities such as tree roots in the soil. The blades 41 are located on the upper side of the embedded grooves on the adjacent drill bits 4 to extend the service life of the blades 41 (that is, the roots and the like need to be relatively moved to the deepest part of the embedded grooves before they can be cut). The lower part of the inner side of the tunneling tube 2 is fixedly connected to a circumferentially arrayed fixed shell 5, and the inner side of the fixed shell 5 is rotatably connected to a first fixed frame 6. The first fixed frame 6 consists of a cylinder and a rectangular plate. A high-toughness flexible connector is provided between the rectangular plate part of the first fixed frame 6 and the fixed shell 5 for isolating the soil (not shown in the figure). The rectangular plate part of the first fixed frame 6 is fixedly connected to a splicing plate 7, and all the splicing plates 7 are commonly provided with a splicing mechanism for controlling the status of all the splicing plates 7.

[0031] like Figure 1-Figure 5As shown, the splicing mechanism includes hinged plates 8 distributed in a circumferential array. The upper side length of the hinged plates 8 is greater than the lower side length. In the initial state, the longitudinal section is an isosceles trapezoid. The hinged plates 8 distributed in the circumferential array are respectively rotatably connected to the corresponding splicing plates 7. The upper part of the hinged plate 8 is hinged with a sliding plate 9. The angle between the side of the hinged plate 8 close to the axis of the tunneling tube 2 and the side of the sliding plate 9 close to the axis of the tunneling tube 2 is greater than 90° and less than 180°. The tunneling tube 2 and the fixed shell 5 are both slidably connected to the sliding plate 9, so that the sliding plate 9 can only slide vertically up and down, and a sliding ring 10 is slidably connected inside the excavation tube 2. An annular slide groove is provided on the lower side of the sliding ring 10. All sliding plates 9 slide in the annular slide groove on the lower side of the sliding ring 10. A pressing frame 11 is fixedly connected to the upper side of the sliding ring 10. The pressing frame 11 is slidably connected to the fixed ring 101. The splicing mechanism also includes a fixing part 110, which is fixed to the handheld frame 1. The fixing part 110 is slidably connected to a limiting sleeve 111, which is used to limit the position of the pressing frame 11.

[0032] like Figure 3 、 Figure 4 、 Figure 8 and Figure 9 As shown, the upper part of the boring tube 2 is rotatably connected to the blocking plate 101, and a through hole is provided in the middle of the blocking plate 101. A one-way valve is provided in the through hole, and the one-way valve is only ventilated from the bottom to the top. In this way, when the device moves upward after the sampling is completed, it has an upward suction force on the sampling tube and the sample, which is convenient for taking out the soil sample. The blocking plate 101 is also provided with a hole for the sampling tube to pass through. The lower part of the inner side of the boring tube 2 is slidably connected to the blocking tube 13. The blocking tube 13 is used to block all the splicing plates 7. The inner diameter of the blocking tube 13 is larger than the inner diameter of the boring tube 2. The blocking tube 13 is fixedly connected to the second fixing frame 1 4. The second fixing frame 14 consists of four straight rods and a circular ring. The straight rods of the second fixing frame 14 are fixedly connected to the blocking cylinder 13. The second fixing frame 14 is slidably connected to the boring cylinder 2. The upper side of the circular ring part of the second fixing frame 14 is rotatably connected with a rotating frame 15. The rotating frame 15 is slidably and rotatably connected to the boring cylinder 2. The rotating frame 15 is slidably connected to the fixing ring 101. A mirror-distributed fixing plate 16 is fixed to the rotating frame 15. A power tension spring 17 is provided between the fixing plate 16 and the fixing ring 101. The handheld frame 1 is slidably connected to a limiter 18. The limiter 18 is used to limit the movement of the rotating frame 15.

[0033] The working process of the detection device in this embodiment is as follows:

[0034] Preparation process: First, select a suitable sampling location in the garden. After the selection is completed, the user brings the device to the sampling location, installs the sampling tube into the boring tube 2, stabilizes the sampling tube with the handheld stand 1, and places the drill bit 4 downward.

[0035] Working process: The user starts the motor 3, and the motor 3 drives the boring tube 2 and the drill bit 4 to rotate through the output shaft and the gear set. At the same time, the user holds the handheld frame 1 and presses it downward. As the drill bit 4 rotates, the boring tube 2 drives the sampling tube to gradually embed into the soil. As the boring tube 2 gradually moves downward, the air in the sampling tube is discharged outward through the one-way valve on the sealing plate 101 until the device reaches the specified depth (the depth is controlled by the user). At this time, the soil sample entering the sampling tube is sufficient, and the user stops pressing the handheld frame 1 and pulls out the limit piece 18 forward, and the rotating frame 15 loses its limit. , the power tension spring 17 between the fixed plate 16 and the fixed ring 101 drives the rotating frame 15 to move upward, the rotating frame 15 drives the second fixed frame 14 to move upward, and the second fixed frame 14 drives the blocking tube 13 to move upward until the blocking tube 13 moves upward to the top of the fixed shell 5 (that is, the blocking tube 13 loses its shielding of the splicing plate 7), the power tension spring 17 restores its original length, and blocks the splicing plate 7 during the drilling process through the blocking tube 13, preventing the splicing plate 7 from damaging the soil to be sampled during the drilling process, reducing the probability of sample damage and improving the reference value of the sample.

[0036] When the blocking cylinder 13 has finished moving up, the user presses the pressing frame 11 downward, and the pressing frame 11 drives all the sliding plates 9 to move downward through the sliding ring 10. Taking one sliding plate 9 as an example, the sliding plate 9 moves downward and drives the hinged plate 8 to deflect (that is, the angle between the sliding plate 9 and the adjacent sides of the hinged plate 8 gradually decreases). In this process, the lower end of the splicing plate 7 is driven by the hinged plate 8 to gradually deviate toward the axis of the excavation cylinder 2. In this process, the excavation cylinder 2 drives the splicing plate 7 to rotate synchronously in the circumferential direction through the fixed shell 5 and the first fixed frame 6, thereby gradually removing the soil that blocks the splicing plate 7 from swinging. As the splicing plates 7 distributed in the circumferential direction gradually swing, until the pressing frame 11 moves downward to the limit sleeve 111, the user controls the limit sleeve 111 to move toward the axis of the excavation cylinder 2, so that the limit sleeve 111 limits the pressing frame 11 ( Figure 5 As shown in the figure, the circumferentially distributed split plates 7 are now completely spliced ​​together (i.e., adjacent split plates 7 are in contact with each other), thereby forming a prism-shaped base for the sampling tube. The user then turns off the motor 3 and pulls out the entire device through the handheld frame 1. During this process, the prism-shaped base formed by the circumferentially distributed split plates 7 supports the sample in the sampling tube, thereby reducing the probability of the sample in the sampling tube being broken during the removal process. After the entire device is removed, the user resets the remaining parts and then removes the sampling tube, completing the sampling work. The circumferentially distributed split plates 7 are spliced ​​together at the end of drilling to provide a prism-shaped base for the sample, thereby providing an upward supporting force for subsequent sample removal, reducing the possibility of sample breakage during the removal process, and improving the accuracy of subsequent detection and analysis results.

[0037] Example 2

[0038] This embodiment discloses a flexible soil sampling and detection device for landscaping projects, which is further improved on the basis of Example 1.

[0039] The structure, connection relationship, and working process of the soil detection equipment in Example 1 are not described in detail, and the working principle of the following structure is mainly explained.

[0040] like Figure 1 、 Figure 9 and Figure 10 As shown, the boring tube 2 is provided with an air injection cavity 19 distributed in a circumferential array, and the boring tube 2 is provided with an air storage cavity 20. The air injection cavity 19 is connected to the air storage cavity 20. The lower side of the air injection cavity 19 is located below the adjacent joint plate 7. A sealing ring 21 is slidingly and rotatably connected in the boring tube 2. The two slide in a sealed manner. The sealing ring 21 is located in the air storage cavity 20. Initially, the sealing ring 21 is located in the upper part of the air storage cavity 20. The pressing frame 11 and the rotating frame 15 are both slidably connected to the sealing ring 21. The upper side of the sealing ring 21 is fixed with a sliding frame 22 slidably connected to the fixed ring 101. The sliding frame 22 is slidably connected to the fixed ring 101.

[0041] The working process of the detection device in this embodiment is as follows:

[0042] After the above-mentioned circumferentially distributed splicing plates 7 are assembled and the motor 3 is turned off, the user presses the sliding frame 22 downward, and the sliding frame 22 drives the sealing ring 21 to move downward. During the downward movement of the sealing ring 21, the air in the air storage chamber 20 below the sealing ring 21 is squeezed downward, and the air is injected downward into the bottom of the prism-shaped base through the circumferentially distributed air injection chamber 19, thereby forming a "micro-high pressure" environment below it. The user then pulls out the device upward, and cooperates with the sealing ring 21 and the sliding frame 22. During the sample removal process, air is injected from the air storage chamber 20 to the air injection chamber 19 to the bottom of the device. The negative pressure at the bottom of the sampling tube is balanced by injecting air, which makes it easier to pull out the device, reduces the probability of breakage during sample removal, and improves the accuracy of subsequent detection and analysis results.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A flexible soil sampling and testing device for landscaping projects, characterized by: The invention comprises a handheld frame (1), wherein the handheld frame (1) is rotatably connected to a tunneling tube (2), the handheld frame (1) is fixedly connected to a fixing ring (101) via a mounting frame, the fixing ring (101) is rotatably connected to the tunneling tube (2), a sampling tube is arranged in the tunneling tube (2), a motor (3) is fixedly connected to the handheld frame (1), an output shaft of the motor (3) and the tunneling tube (2) are driven by a gear set, a drill bit (4) is fixedly connected to the tunneling tube (2), a circumferentially arrayed fixed shell (5) is fixedly connected to the tunneling tube (2), a first fixed frame (6) is rotatably connected in the fixed shell (5), a splicing plate (7) is fixedly connected to the first fixed frame (6), and all the splicing plates (7) are commonly provided with a splicing mechanism for controlling the state of the splicing plates (7); The drill bit (4) is provided with circumferentially evenly distributed embedded grooves, and blades (41) are fixedly connected to the circumferentially evenly distributed embedded grooves on the drill bit (4); The blade (41) is located on a side of the drill bit (4) corresponding to the embedded groove close to the tunneling barrel (2); The splicing mechanism includes hinged plates (8) distributed in a circumferential array, the hinged plates (8) distributed in the circumferential array are respectively rotatably connected to the corresponding splicing plates (7), the hinged plates (8) are hinged with a sliding plate (9), the excavation tube (2) and the fixed shell (5) are both slidably connected to the sliding plate (9), a sliding ring (10) is slidably connected inside the excavation tube (2), the sliding ring (10) is slidably connected to all the sliding plates (9), the sliding ring (10) is fixedly connected to a pressing frame (11), and the pressing frame (11) is slidably connected to the fixed ring (101); The splicing mechanism further comprises a fixing member (110), wherein the fixing member (110) is fixed to the handheld frame (1), and the fixing member (110) is slidably connected to a limiting sleeve (111), and the limiting sleeve (111) is used to limit the position of the pressing frame (11).

2. The flexible soil sampling and testing equipment for landscaping projects according to claim 1 is characterized in that: The tunneling cylinder (2) is rotatably connected to a blocking plate (12), a through hole is provided in the middle of the blocking plate (12), and a one-way valve is provided in the through hole.

3. The flexible soil sampling and testing equipment for landscaping projects according to claim 2 is characterized in that: The tunneling tube (2) is slidably connected to a blocking tube (13), and the blocking tube (13) is used to block all the splicing plates (7). The blocking tube (13) is fixed to a second fixing frame (14), and the second fixing frame (14) is slidably connected to the tunneling tube (2). The second fixing frame (14) is rotatably connected to a rotating frame (15), and the rotating frame (15) is slidably and rotatably connected to the tunneling tube (2). The rotating frame (15) is slidably connected to the fixing ring (101), and a mirror-distributed fixing plate (16) is fixed to the rotating frame (15), and a power tension spring (17) is provided between the fixing plate (16) and the fixing ring (101).

4. The flexible soil sampling and testing equipment for landscaping projects according to claim 3 is characterized in that: The handheld frame (1) is slidably connected to a limiting member (18), and the limiting member (18) is used to limit the movement of the rotating frame (15).

5. The flexible soil sampling and testing equipment for landscaping projects according to claim 4 is characterized in that: The tunneling barrel (2) is provided with air injection cavities (19) distributed in a circumferential array, and the tunneling barrel (2) is provided with an air storage cavity (20), and the air injection cavities (19) distributed in a circumferential array are all communicated with the air storage cavity (20).

6. The flexible soil sampling and testing equipment for landscaping projects according to claim 5 is characterized in that: A sealing ring (21) is slidably and rotatably connected in the boring barrel (2), and the sealing ring (21) is located in the air storage chamber (20). The pressing frame (11) and the rotating frame (15) are both slidably connected to the sealing ring (21). The sealing ring (21) is fixedly connected to a sliding frame (22), and the sliding frame (22) is slidably connected to the fixing ring (101).

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