A sampling device for detecting heavy metal contaminated soil

Abstract

The present invention relates to the technical field of soil sampling, in particular to a sampling device for detecting heavy metal contaminated soil, comprising a sampling unit, a protection unit and a transmission unit, wherein the sampling unit comprises a sampling drill bit and a sampling component, the sampling drill bit is hollow, the sampling component is located inside the sampling drill bit, the protection unit comprises a protection box, and the transmission unit comprises a motor and a transmission component for driving the sampling drill bit to rotate, and the transmission component is located inside the protection box; the present invention drives the sampling drill bit and a rotating head to rotate through the transmission component, thereby drilling holes in heavy metal contaminated soil with relatively hard geology, which is convenient for users to use directly without the need for other mechanical tools, saving time and labor, and the present invention can use the sampling component to allow the sampled soil to be stored in the sampling drill bit, thereby ensuring that the sampled soil does not contact soil at a different depth from the soil, thereby ensuring the accuracy of the detection data.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, in particular to a sampling device for detecting heavy metal polluted soil. Background Art

[0002] Soil sampling refers to the method of collecting soil samples, including the layout of the sampling and sampling technology. The collection of profile soil samples should be carried out after the profile observation and recording are completed. Before sampling, the profile should be repaired and cleaned, and the topmost layer of loose soil should be removed. Then samples should be taken from the central typical position layer by layer from top to bottom.

[0003] When sampling harder soil, the existing sampling device for heavy metal contaminated soil needs to first drill holes in the harder soil using other mechanical tools, and then take out the soil in the hole for testing using the sampling device. This operation is cumbersome and wastes manpower and material resources. Summary of the invention

[0004] The object of the present invention is to provide a sampling device for detecting heavy metal contaminated soil to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sampling device for detecting heavy metal contaminated soil, comprising a sampling unit, a protection unit and a transmission unit, wherein the sampling unit comprises a sampling drill bit and a sampling assembly, the sampling drill bit is hollow, the sampling assembly is located inside the sampling drill bit, the protection unit comprises a protection box, the transmission unit comprises a motor and a transmission assembly for driving the sampling drill bit to rotate, and the transmission assembly is located inside the protection box.

[0006] Optionally, a first receiving hole is provided at the bottom of the sampling drill bit, a first receiving groove is provided at the outer side of the sampling drill bit, and a scale is embedded in the first receiving groove.

[0007] Optionally, a first slide groove and a second slide groove are symmetrically and vertically opened on the inner wall of the sampling drill bit, the first slide groove is located on one side of the top of the second slide groove, a connecting groove is opened between the first slide groove and the second slide groove, and the connecting groove is connected with the first slide groove and the second slide groove.

[0008] Optionally, the sampling assembly includes a sampling rod disposed inside the sampling drill bit, the sampling rod is movably connected to the sampling drill bit, a connecting rod is disposed at one end of the sampling rod, and one end of the connecting rod is fixedly connected to the sampling rod.

[0009] Optionally, the radius of the connecting rod is smaller than the radius of the first accommodating hole, the other end of the connecting rod extends out of the first accommodating hole, and one end of the connecting rod extending out of the first accommodating hole is provided with a rotating head, and the rotating head is fixedly connected to the connecting rod.

[0010] Optionally, the sampling assembly further comprises a limiting groove symmetrically and vertically opened on the outer wall of the sampling rod, a sliding block is arranged in the limiting groove, a fixing block is arranged on one side of the sliding block, and a limiting block is arranged at the bottom of the fixing block.

[0011] Optionally, a second accommodating groove is vertically opened on the top of the limit block, an elastic member is arranged in the second accommodating groove, one end of the elastic member is fixedly connected to the bottom of the inner wall of the second accommodating groove, the other end of the elastic member is fixedly connected to the limit block, the sliding block and the limit block are both slidably connected to the limit groove, and a push handle is fixedly connected to the top of the sampling rod.

[0012] Optionally, a second accommodating hole is vertically opened on the top of the protection box, the second accommodating hole passes through the protection box, the sampling drill bit is rotatably connected to the second accommodating hole, and handrails are symmetrically provided on both sides of the protection box.

[0013] Optionally, the transmission assembly includes a first gear disposed in the protective box, and the first gear is fixedly connected to the sampling drill bit.

[0014] Optionally, a second gear is provided on one side of the first gear, the second gear is meshed with the first gear, a rotating shaft is provided on the second gear, the rotating shaft is fixedly connected to the second gear, one end of the rotating shaft is rotatably connected to the bottom of the inner wall of the protective box, and the other end of the rotating shaft is fixedly connected to the output end of the motor.

[0015] Beneficial effects:

[0016] 1. The present invention is configured to drive the sampling drill bit and the rotating head to rotate through a transmission assembly, so as to drill holes in heavy metal-contaminated soil with relatively hard geology, which is convenient for users to use directly without the need for other mechanical equipment, thus saving time and effort.

[0017] 2. The present invention can push out the sampling rod provided in the sampling drill bit by pressing the push handle, so that the rotating head can be inserted into the soil, and the surrounding soil covers the top of the rotating head. By pulling up the push handle, the soil on the top of the rotating head is collected into the sampling drill bit, thereby ensuring that the collected soil does not contact the soil at a different depth from it, thereby ensuring the accuracy of the detection data.

[0018] 3. The present invention is provided with a scale, so that the user can clearly know the depth of the drilling hole when drilling the soil, so as to analyze the degree of heavy metal pollution in the soil at different depths at the same place. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a sampling device for detecting heavy metal contaminated soil according to the present invention;

[0020] Figure 2 This is a schematic diagram of the external structure of a sampling drill bit of a sampling device for detecting heavy metal contaminated soil according to the present invention;

[0021] Figure 3 A cross-sectional view of a sampling drill bit of a sampling device for detecting heavy metal contaminated soil according to the present invention;

[0022] Figure 4 This is a schematic diagram of the sampling rod structure of a sampling device for detecting heavy metal contaminated soil according to the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of a sampling component of a sampling device for detecting heavy metal contaminated soil according to the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of a protection unit of a sampling device for detecting heavy metal contaminated soil according to the present invention;

[0025] Figure 7 The present invention is a schematic diagram of the transmission unit structure of a sampling device for detecting heavy metal contaminated soil.

[0026] In the figure: 1. sampling unit; 11. sampling drill bit; 12. sampling assembly; 121. sampling rod; 122. connecting rod; 123. rotating head; 124. limiting groove; 125. sliding block; 126. fixing block; 127. limiting block; 128. second receiving groove; 129. elastic member; 1291. push handle; 13. first receiving hole; 14. first receiving groove; 15. scale; 16. first slide groove; 17. second slide groove; 18. connecting groove; 2. protection unit; 21. protection box; 22. second receiving hole; 23. handrail; 3. transmission unit; 31. motor; 32. transmission assembly; 321. first gear; 322. second gear; 323. rotating shaft. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figures 1 to 5The present invention provides a sampling device for detecting heavy metal contaminated soil, comprising a sampling unit 1 for sampling soil; a sampling drill 11 for drilling a hole in the soil; a sampling assembly 12 for collecting soil; a protection unit 2 for protecting an object; a protection box 21 for protecting a transmission assembly 32; a transmission unit 3 for driving a machine to move; a motor 31 for driving a rotating shaft 323 to rotate; a transmission assembly 32 for driving the sampling drill 11 to rotate; a first receiving hole 13 for accommodating a connecting rod 122; a first receiving groove 14 for accommodating a scale 15; a scale 15 for facilitating a worker to measure a drilling depth; and a stop block 127 for facilitating sliding. A first slide groove 16 and a second slide groove 17; a connecting groove 18 for connecting the first slide groove 16 and the second slide groove 17; a sampling rod 121 that drives the connecting rod 122 to extend from the first accommodating hole 13; a connecting rod 122 for connecting a rotating head 123; a rotating head 123 for drilling soil; a limiting groove 124 for limiting the slider 125 and the limiting block 127; a slider 125 that drives the fixed block 126 to move; a limiting block 127 for limiting the sampling rod 121; a second accommodating groove 128 for accommodating the fixed block 126; an elastic member 129 for elastically resetting the fixed block 126; a push handle 1291 for pushing the sampling rod 121 to move.

[0030] The sampling unit 1 for sampling soil includes a sampling drill 11 for drilling holes in the soil and a sampling assembly 12 for collecting soil. The sampling drill 11 is hollow and the sampling assembly 12 is located inside the sampling drill 11. The protection unit 2 for protecting the object includes a protection box 21 for protecting the transmission assembly 32. The transmission unit 3 for driving the machine to move includes a motor 31 for driving the rotating shaft 323 to rotate and a transmission assembly 32 for driving the sampling drill 11 to rotate. The transmission assembly 32 is located in the protection box 21. The bottom of the sampling drill 11 is provided with a protective box 21 for accommodating The first receiving hole 13 of the connecting rod 122 is accommodated, and a first receiving groove 14 for accommodating a scale 15 is provided on the outside of the sampling drill bit 11. The first receiving groove 14 is embedded with a scale 15 for the staff to measure the drilling depth. The first slide groove 16 and the second slide groove 17 are symmetrically and vertically provided on the inner wall of the sampling drill bit 11 for facilitating the sliding of the limit block 127. The first slide groove 16 is located on one side of the top of the second slide groove 17. A connecting groove 18 for connecting the first slide groove 16 and the second slide groove 17 is provided between the first slide groove 16 and the second slide groove 17, and the connecting groove 18 is connected to the first slide groove 16 and the second slide groove 17.

[0031] Furthermore, the sampling assembly 12 includes a sampling rod 121 arranged inside the sampling drill bit 11 and driving a connecting rod 122 to extend out of the first accommodating hole 13. The sampling rod 121 is movably connected to the sampling drill bit 11. A connecting rod 122 for connecting a rotating head 123 is provided at one end of the sampling rod 121. One end of the connecting rod 122 is fixedly connected to the sampling rod 121. The radius of the connecting rod 122 is smaller than the radius of the first accommodating hole 13. The other end of the connecting rod 122 extends out of the first accommodating hole 13. A rotating head 123 for drilling soil is provided at one end of the connecting rod 122 extending out of the first accommodating hole 13. The rotating head 123 is fixedly connected to the connecting rod 122.

[0032] Furthermore, the sampling assembly 12 also includes a limit groove 124 symmetrically and vertically opened on the outer wall of the sampling rod 121 for limiting the slider 125 and the limit block 127, the limit groove 124 is provided with a slider 125, and a fixed block 126 for driving the fixed block 126 to move is provided on one side of the slider 125, and a limit block 127 is provided at the bottom of the fixed block 126, and a second accommodating groove 128 is vertically opened at the top of the limit block 127, and an elastic member 129 for elastically resetting the fixed block 126 is provided in the second accommodating groove 128, one end of the elastic member 129 is fixedly connected to the bottom of the inner wall of the second accommodating groove 128, and the other end of the elastic member 129 is fixedly connected to the limit block 127, the slider 125 and the limit block 127 are both slidably connected to the limit groove 124, and a push handle 1291 for pushing the sampling rod 121 to move is fixedly connected to the top of the sampling rod 121.

[0033] Usage process: When sampling of heavy metal contaminated soil with relatively hard geology is required, the user holds the protection box 21 and starts the motor 31. The motor 31 drives the transmission assembly 32 to rotate, and the transmission assembly 32 drives the sampling drill 11 to drill the soil. The scale 15 embedded in the first receiving groove 14 provided on the outside of the sampling drill 11 can facilitate the user to clearly know the depth of the drilling hole when drilling the soil, so as to facilitate data analysis after soil collection. When the sampling drill 11 drills a certain depth, the push handle 1291 can be pressed to make the limit block 127 move from the first The top of the slide groove 16 slides into one end of the connecting groove 18, and the push handle 1291 is continuously squeezed, so that the slider 125 drives the fixed block 126, and then by squeezing the elastic member 129, the slider 125 slides into the second accommodating groove 128, and then the push handle 1291 is rotated, and the sampling rod 121 drives the limit block 127 to slide from one end of the connecting groove 18 to the other end, and again by squeezing the push handle 1291, the sampling rod 121 drives the limit block 127 to slide into the second slide groove 17, and at the same time, the rotating head 123 set at the front end of the sampling rod 121 is inserted into the soil, and the soil around it covers the top of the rotating head 123.

[0034] Furthermore, after sampling, the soil on the top of the rotating head 123 is collected into the sampling drill bit 11 by pulling the push handle 1291, ensuring that the collected soil does not contact the soil at a different depth. When the push handle 1291 is pulled, the sampling rod 121 drives the limit block 127 to rise. When it is pulled to the top of the second slide groove 17, the fixed block 126 slides into the second accommodating groove 128. When the push handle 1291 is rotated, the limit block 127 slides from one end of the connecting groove 18 to the other end. At this time, the elastic member 129 elastically resets and pushes the fixed block 126 into the first slide groove 16, thereby limiting the sampling rod 121.

[0035] Example 2

[0036] See also Figure 6 to Figure 7 The present invention provides a sampling device for detecting heavy metal contaminated soil, which includes a second accommodating hole 22 for accommodating a sampling drill bit 11; a handrail 23 for users to pick up; a first gear 321 for driving the sampling drill bit 11 to rotate; a second gear 322 for driving the first gear 321 to rotate; and a rotating shaft 323 for driving the second gear 322 to rotate.

[0037] Furthermore, a second accommodating hole 22 for accommodating the sampling drill bit 11 is vertically opened on the top of the protection box 21, and the second accommodating hole 22 passes through the protection box 21, and the sampling drill bit 11 is rotatably connected to the second accommodating hole 22. Handrails 23 are symmetrically arranged on both sides of the protection box 21 for users to pick up. The transmission assembly 32 includes a first gear 321 arranged in the protection box 21 to drive the sampling drill bit 11 to rotate, the first gear 321 is fixedly connected to the sampling drill bit 11, and a second gear 322 is arranged on one side of the first gear 321 to drive the first gear 321 to rotate, and the second gear 322 is meshed with the first gear 321. A rotating shaft 323 is arranged on the second gear 322 to drive the second gear 322 to rotate, and the rotating shaft 323 is fixedly connected to the second gear 322. One end of the rotating shaft 323 is rotatably connected to the bottom of the inner wall of the protection box 21, and the other end of the rotating shaft 323 is fixedly connected to the output end of the motor 31.

[0038] Usage process: When it is necessary to sample heavy metal contaminated soil with relatively hard geology, the user holds the handrails 23 on both sides of the protective box 21 and starts the motor 31. The motor 31 drives the rotating shaft 323 to rotate, and the rotating shaft 323 drives the second gear 322 to rotate. Because the second gear 322 is meshed with the first gear 321, the second gear 322 drives the first gear 321 to rotate, and the first gear 321 drives the sampling drill bit 11 to drill a hole in the soil. The scale 15 embedded in the first receiving groove 14 provided on the outer side of the sampling drill bit 11 can facilitate the user to clearly know the depth of the drill hole when drilling a hole in the soil, so as to facilitate data analysis after soil collection. When the sampling When the drill bit 11 drills a hole to a certain depth, the push handle 1291 can be pressed to make the limit block 127 slide from the top of the first slide groove 16 into one end of the connecting groove 18, and the push handle 1291 can be continuously squeezed to make the slider 125 drive the fixing block 126, and then the slider 125 can be slid into the second accommodating groove 128 by squeezing the elastic member 129, and then the push handle 1291 is rotated, and the sampling rod 121 drives the limit block 127 to slide from one end of the connecting groove 18 to the other end, and again by squeezing the push handle 1291, the sampling rod 121 drives the limit block 127 to slide into the second slide groove 17, and at the same time, the rotating head 123 arranged at the front end of the sampling rod 121 is inserted into the soil, and the soil around it covers the top of the rotating head 123.

[0039] Furthermore, after sampling, the soil on the top of the rotating head 123 is collected into the sampling drill bit 11 by pulling the push handle 1291, ensuring that the collected soil does not contact the soil at a different depth. When the push handle 1291 is pulled, the sampling rod 121 drives the limit block 127 to rise. When it is pulled to the top of the second slide groove 17, the fixed block 126 slides into the second accommodating groove 128. When the push handle 1291 is rotated, the limit block 127 slides from one end of the connecting groove 18 to the other end. At this time, the elastic member 129 elastically resets and pushes the fixed block 126 into the first slide groove 16, thereby limiting the sampling rod 121.

[0040] Working principle: When sampling of heavy metal contaminated soil with relatively hard geology is required, the user holds the handrails 23 on both sides of the protective box 21 and starts the motor 31. The motor 31 drives the rotating shaft 323 to rotate, and the rotating shaft 323 drives the second gear 322 to rotate. Because the second gear 322 is meshed with the first gear 321, the second gear 322 drives the first gear 321 to rotate, and the first gear 321 drives the sampling drill bit 11 to drill the soil. The scale 15 embedded in the first receiving groove 14 provided on the outer side of the sampling drill bit 11 can facilitate the user to clearly know the depth of the drill hole when drilling the soil, so as to facilitate the data analysis after the soil is collected. When the sampling When the drill bit 11 drills a hole to a certain depth, the push handle 1291 can be pressed to make the limit block 127 slide from the top of the first slide groove 16 into one end of the connecting groove 18, and the push handle 1291 can be continuously squeezed to make the slider 125 drive the fixing block 126, and then the slider 125 can be slid into the second accommodating groove 128 by squeezing the elastic member 129, and then the push handle 1291 is rotated, and the sampling rod 121 drives the limit block 127 to slide from one end of the connecting groove 18 to the other end, and again by squeezing the push handle 1291, the sampling rod 121 drives the limit block 127 to slide into the second slide groove 17, and at the same time, the rotating head 123 arranged at the front end of the sampling rod 121 is inserted into the soil, and the soil around it covers the top of the rotating head 123.

[0041] Furthermore, after sampling, the soil on the top of the rotating head 123 is collected into the sampling drill bit 11 by pulling the push handle 1291, ensuring that the collected soil does not contact the soil at a different depth from it, thereby ensuring the accuracy of the detected data. When the push handle 1291 is pulled, the sampling rod 121 drives the limit block 127 to rise, and when it is pulled to the top of the second slide groove 17, the fixed block 126 slides into the second accommodating groove 128, and when the push handle 1291 is rotated, the limit block 127 slides from one end of the connecting groove 18 to the other end. At this time, the elastic member 129 elastically resets and pushes the fixed block 126 into the first slide groove 16, thereby limiting the sampling rod 121.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for detecting heavy metal contaminated soil, comprising a sampling unit (1), a protection unit (2) and a transmission unit (3), characterized in that: The sampling unit (1) comprises a sampling drill bit (11) and a sampling assembly (12); the sampling drill bit (11) is hollow, and the sampling assembly (12) is located inside the sampling drill bit (11); the protection unit (2) comprises a protection box (21); the transmission unit (3) comprises a motor (31) and a transmission assembly (32) for driving the sampling drill bit (11) to rotate; and the transmission assembly (32) is located inside the protection box (21); A first receiving hole (13) is provided at the bottom of the sampling drill bit (11), a first receiving groove (14) is provided on the outside of the sampling drill bit (11), and a scale (15) is embedded in the first receiving groove (14); A first slide groove (16) and a second slide groove (17) are symmetrically and vertically provided on the inner wall of the sampling drill bit (11), wherein the first slide groove (16) is located on one side of the top of the second slide groove (17), and a connecting groove (18) is provided between the first slide groove (16) and the second slide groove (17), wherein the connecting groove (18) is connected with the first slide groove (16) and the second slide groove (17); The sampling assembly (12) comprises a sampling rod (121) disposed inside the sampling drill bit (11), the sampling rod (121) being movably connected to the sampling drill bit (11), a connecting rod (122) being disposed at one end of the sampling rod (121), and one end of the connecting rod (122) being fixedly connected to the sampling rod (121); The radius of the connecting rod (122) is smaller than the radius of the first receiving hole (13); the other end of the connecting rod (122) extends out of the first receiving hole (13); one end of the connecting rod (122) extending out of the first receiving hole (13) is provided with a rotating head (123); the rotating head (123) is fixedly connected to the connecting rod (122); The sampling assembly (12) further comprises a limiting groove (124) symmetrically and vertically opened on the outer wall of the sampling rod (121), a sliding block (125) is arranged in the limiting groove (124), a fixing block (126) is arranged on one side of the sliding block (125), and a limiting block (127) is arranged at the bottom of the fixing block (126); A second receiving groove (128) is vertically opened on the top of the limit block (127), an elastic member (129) is arranged in the second receiving groove (128), one end of the elastic member (129) is fixedly connected to the bottom of the inner wall of the second receiving groove (128), and the other end of the elastic member (129) is fixedly connected to the limit block (127), the sliding block (125) and the limit block (127) are both slidably connected to the limit groove (124), and a push handle (1291) is fixedly connected to the top of the sampling rod (121); A second receiving hole (22) is vertically opened on the top of the protection box (21), the second receiving hole (22) passes through the protection box (21), the sampling drill bit (11) is rotatably connected to the second receiving hole (22), and handrails (23) are symmetrically arranged on both sides of the protection box (21); The transmission assembly (32) includes a first gear (321) disposed in the protection box (21), the first gear (321) being fixedly connected to the sampling drill bit (11), a second gear (322) being disposed on one side of the first gear (321), the second gear (322) being meshed with the first gear (321), a rotating shaft (323) being disposed on the second gear (322), the rotating shaft (323) being fixedly connected to the second gear (322), one end of the rotating shaft (323) being rotatably connected to the bottom of the inner wall of the protection box (21), and the other end of the rotating shaft (323) being fixedly connected to the output end of the motor (31).

2. A sampling method for a sampling device for detecting heavy metal contaminated soil according to claim 1, characterized in that: The user holds the handrails (23) on both sides of the protection box (21) and starts the motor (31). The motor (31) drives the rotating shaft (323) to rotate. The rotating shaft (323) drives the second gear (322) to rotate. Since the second gear (322) is meshed with the first gear (321), the second gear (322) drives the first gear (321) to rotate. The first gear (321) drives the sampling drill bit (11) to drill a hole in the soil. The first receiving groove (11) provided on the outer side of the sampling drill bit (11) is 4) The embedded scale (15) can help the user to clearly know the depth of the hole when drilling the soil. When the sampling drill bit (11) drills a hole to a certain depth, the push handle (1291) can be pressed to make the limit block (127) slide from the top of the first slide groove (16) into one end of the connecting groove (18). The push handle (1291) is further squeezed to make the slider (125) drive the fixed block (126). Then, the slider (125) is slid into the second receiving groove (128) by squeezing the elastic member (129). ), the push handle (1291) is rotated, the sampling rod (121) drives the limit block (127) to slide from one end of the connecting groove (18) to the other end, and the sampling rod (121) drives the limit block (127) to slide into the second sliding groove (17) by squeezing the push handle (1291) again. At the same time, the rotating head (123) arranged at the front end of the sampling rod (121) is inserted into the soil, and the surrounding soil covers the top of the rotating head (123). By pulling the push handle (1291), the soil on the top of the rotating head (123) is The soil is collected into the sampling drill bit (11). When the push handle (1291) is pulled, the sampling rod (121) drives the limit block (127) to rise. When it is pulled to the top of the second slide groove (17), the fixed block (126) slides into the second receiving groove (128). When the push handle (1291) is rotated, the limit block (127) slides from one end of the connecting groove (18) to the other end. At this time, the elastic member (129) is elastically reset to push the fixed block (126) into the first slide groove (16), thereby limiting the sampling rod (121).

Images