Heavy metal soil stratified sampling device

Abstract

The utility model discloses a heavy metal soil stratified sampling device which comprises a rotating shaft, a plurality of earth cutting buckets are arranged on the rotating shaft in parallel at intervals; each soil cutting bucket is provided with one sample collecting piece, the sample collecting pieces and the soil cutting buckets are arranged in parallel at intervals, the sample collecting pieces are rotationally connected with the rotating shaft, and the sample collecting pieces are used for collecting soil samples dug out by the soil cutting buckets; wherein the sample collecting piece is of a cylinder structure with an open top and a closed bottom; and the sample collecting piece is eccentrically and rotationally connected with the rotating shaft. When the soil sampling device is used, a sampling hole is vertically formed in a sampling position by adopting drilling tools such as a ground drill, then the soil sampling device is inserted into the sampling hole and placed in place, the rotating shaft is driven to rotate, the rotating shaft drives the soil cutting buckets on the rotating shaft to rotate, the soil cutting buckets dig soil on the side face of the sampling hole, and the soil falls into the sample collecting pieces at the bottoms of the soil cutting buckets to be collected. Earth cutting and sampling can be completed by rotating the rotating shaft for one circle. The soil sampler has the characteristics that stratified sampling can be carried out, and samples of soil at different depths can be sampled.

Description

Technical Field

[0001] This utility model relates to a sampling device, specifically a heavy metal soil stratification sampling device. Background Technology

[0002] Heavy metals cannot be decomposed by soil microorganisms and are therefore prone to accumulation. Major heavy metal pollutants in soil include mercury, cadmium, lead, copper, chromium, arsenic, nickel, iron, manganese, and zinc.

[0003] One existing method of soil sampling is profile soil sampling. Profile soil sampling typically involves digging a pit 1.5–2 meters long, 1 meter wide, and approximately 1–2 meters deep. Soil samples can then be taken from the sides of the pit as needed. However, digging the pit increases the workload of sampling personnel, is time-consuming, and reduces the efficiency of soil sampling. Therefore, to address the shortcomings of existing technologies, a heavy metal soil stratification sampling device has been developed. Summary of the Invention

[0004] The purpose of this invention is to provide a heavy metal soil stratification sampling device to address the shortcomings of existing technologies.

[0005] In order to achieve the above-mentioned objectives of this utility model, the following technical solution is adopted:

[0006] A heavy metal soil stratification sampling device includes a rotating shaft; a digging bucket with multiple digging buckets spaced apart and arranged in parallel on the rotating shaft; and a sample collection component, each digging bucket being equipped with a sample collection component, the sample collection component being spaced apart and parallel to the digging bucket and rotatably connected to the rotating shaft, and the sample collection component being used to collect soil samples excavated by the digging bucket; wherein, the sample collection component is a cylindrical structure with an open top and a closed bottom; the sample collection component is eccentrically rotatably connected to the rotating shaft.

[0007] Furthermore, the heavy metal soil stratification sampling device of this utility model also includes scale lines, and scale lines are provided on the rotating shaft along the length direction.

[0008] Furthermore, the heavy metal soil stratification sampling device of this utility model also includes support legs and a second bearing seat. At least three support legs are distributed at intervals on the side of the second bearing seat and are sleeved with the rotating shaft.

[0009] Furthermore, the heavy metal soil stratification sampling device of this utility model also includes a base plate, and a base plate is installed at the bottom of each support leg.

[0010] Furthermore, the heavy metal soil stratification sampling device of this utility model also includes a fixing plate and a fixing nail. The fixing plate has a through hole and is connected to the base plate. The fixing nail is installed through the through hole.

[0011] Furthermore, the excavator bucket includes a front support plate with a plurality of bucket teeth spaced apart at one end; a rear support plate with one end connected to the other end of the front support plate and the other end connected to a rotating shaft; and side plates, with the two sides of the front and rear support plates connected by side plates, and the side plates being installed at an angle.

[0012] Furthermore, the heavy metal soil stratification sampling device of this utility model also includes a support and a handle. The support is fixedly installed on the rotating shaft, and at least two handles are installed on the support at intervals. The handles are perpendicular to the rotating shaft.

[0013] Furthermore, the heavy metal soil stratification sampling device of this utility model also includes an anti-slip sleeve, which is fitted onto the handle.

[0014] Furthermore, the heavy metal soil stratification sampling device of this utility model also includes a drive motor, a support plate and a bracket, wherein the drive motor is mounted on the support plate and is connected to the rotating shaft for transmission, and the support plate is mounted on the bracket.

[0015] Furthermore, the heavy metal soil stratification sampling device of this utility model also includes a bushing, the bushing passes through a support plate and is fixedly connected to the support plate, and the rotating shaft passes through the bushing and is connected to the drive motor for transmission.

[0016] The advancements of this invention compared to the prior art are as follows:

[0017] This invention enables stratified sampling, overcoming the problems of existing methods that use excavated pits for profile soil sampling. Specifically, multiple excavating buckets are spaced apart on a rotating shaft, each bucket equipped with a soil collection element. The collection element is eccentrically connected to the rotating shaft. When the multiple excavating buckets and collection elements are inserted into the sampling hole via the rotating shaft and descend to the desired depth, the shaft rotates, causing the buckets to rotate simultaneously. The buckets excavate soil from the side of the sampling hole closest to the shaft, and the soil falls into the collection element below the bucket under its own gravity. One rotation of the shaft completes the soil sampling process. This significantly improves the efficiency of soil sampling. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of a hand-driven structure of a heavy metal soil stratification sampling device according to the present invention;

[0020] Figure 2 This is a schematic diagram of an electrically driven structure for a heavy metal soil stratification sampling device according to the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the present invention, in which multiple excavating buckets are installed on the transfer shaft;

[0022] The names and serial numbers of each component in the diagram are as follows:

[0023] 1-Shaft, 2-First bearing, 3-Sample assembly, 4-Digging bucket, 41-Bucket teeth, 42-Front support plate, 43-Side plate, 44-Rear support plate, 5-Support leg, 6-Second bearing seat, 7-Scale line, 8-Base plate, 9-Handle, 10-Anti-slip sleeve, 11-Support, 12-Drive motor, 13-Bracket, 14-Shaft sleeve, 15-Support plate, 16-Fixing plate, 161-Through hole, 17-Fixing nail. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions of this utility model will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments in this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0025] Example 1:

[0026] like Figures 1 to 3 As shown in the figure, this embodiment of a heavy metal soil stratification sampling device includes a rotating shaft 1, a soil hopper 4, and a sample collection element 3. Multiple soil hoppers 4 are arranged parallel to each other at intervals on the rotating shaft 1; each soil hopper 4 is equipped with a sample collection element 3, which is parallel to the soil hopper 4 at intervals and rotatably connected to the rotating shaft 1. The sample collection element 3 is used to collect soil samples excavated by the soil hopper 4; wherein, the sample collection element 3 is a cylindrical structure with an open top and a closed bottom; the sample collection element is eccentrically rotatably connected to the rotating shaft.

[0027] The rotating shaft 1 is eccentrically inserted through the sample collection component 3, and the rotating shaft and the sample collection component are rotatably connected.

[0028] One rotatable connection structure between the sample collection component 3 and the rotating shaft 1 is that the sample collection component and the rotating shaft 1 are connected by a first bearing 2. The rotating shaft 1 can rotate smoothly relative to the sample collection component through the bearing.

[0029] It should be noted that during soil sampling, drilling tools such as ground drills can be used to drill vertically downward sampling holes at the soil sampling site. The diameter of the sampling hole is equal to the diameter of the sample collection element, which facilitates the sample collection element fitting the side of the sampling hole. This utility model is inserted into the sampling hole to the bottom, and then the rotating shaft 1 is driven to rotate. The rotating shaft 1 drives multiple excavating buckets 4 mounted on it to rotate. The sample collection element 3 is eccentrically connected to the rotating shaft 1. The excavating buckets dig up the soil on the side of the sampling hole close to the rotating shaft. The soil excavated by the excavating buckets 3 falls into the sample collection element 3 below, where the sample collection element 3 collects the soil sample.

[0030] The sample collection piece inserted into the sampling hole can support the rotation of the shaft. Understandably, the sample collection piece fits snugly against the hole wall to prevent soil from falling into the lower sample collection piece during excavation of the upper layer.

[0031] Multiple excavating buckets 4 are installed at intervals on the rotating shaft 1, each bucket 4 corresponding to a soil layer of depth. The number of excavating buckets installed can be 2, 3, 4, 5, 6, 7, 8, 9, or 10, etc. The number of sample collection units installed is equal to the number of excavating buckets.

[0032] Understandably, the diameter of the sampling hole is equal to the diameter of the sample collection element, and the side of the sample collection element is attached to the hole wall of the sampling hole, which can prevent the soil excavated from the upper layer from falling into the sample collection element in the lower layer.

[0033] In some embodiments, to facilitate the viewing of depth, a scale line 7 is added, and the scale line 7 is provided on the rotating shaft 1 along the length direction.

[0034] Staff can quickly determine the sampling depth by using the scale lines on the rotating shaft.

[0035] In some embodiments, to facilitate the rotation of the rotating shaft, support legs 5 and a second bearing seat 6 are added. The second bearing seat 6 has at least three support legs 5 spaced apart on its side and is sleeved with the rotating shaft 1.

[0036] The number of support legs can be 3, 4, or 5. Multiple support legs support the rotating shaft through a second bearing seat, which facilitates the rotation of the shaft.

[0037] In some embodiments, a base plate 8 is added to increase the contact area between the bottom of the support leg and the ground. A base plate 8 is installed on the bottom of each support leg 5.

[0038] In some embodiments, a fixing plate 16 and fixing nails 17 are added to fix the support leg to the ground. The fixing plate 16 has a through hole 61 and is connected to the base plate 8, and the fixing nails 17 are installed through the through hole 61.

[0039] When in use, place the support leg flat on the ground, with the fixing plate 16 and the base plate 8 both attached to the ground. Then, insert the fixing nail through the through hole 61 into the ground. The fixing nail fixes the fixing plate to the ground, thereby fixing the base plate and the support leg to the ground.

[0040] In some embodiments, a structure for an excavator bucket is provided. For example... Figure 1-3 As shown, the excavator bucket 4 includes a front support plate 42, a rear support plate 44, and side plates 43. Multiple bucket teeth 41 are spaced apart at one end of the front support plate 42; one end of the rear support plate 44 is connected to the other end of the front support plate 42, and the other end is connected to the rotating shaft 1; the two sides of the front support plate 42 and the rear support plate 44 are connected by the side plates 43 respectively, and the side plates are installed at an angle.

[0041] The teeth are used to quickly insert into the soil, which facilitates the excavation of soil samples.

[0042] like Figure 3 As shown, multiple excavating buckets are installed in parallel at intervals along the vertical height of the rotating shaft. The opening of the excavating buckets expands from the inside to the outside, while the side plates are installed at an angle, which facilitates the soil samples excavated by the excavating buckets to slide down from the side plates.

[0043] In some embodiments, a structure for manually driving the rotation of the shaft is provided, which includes an additional support 11 and a handle 9. The support 11 is fixedly mounted on the shaft 1, and at least two handles 9 are spaced apart on the support 11, with the handles 9 perpendicular to the shaft 1.

[0044] The number of handles 9 can be 2, 3, or 4, etc. You can choose the appropriate number of handles to install as needed.

[0045] When the rotating shaft and its multiple excavating buckets 4 and sample collection components 4 are inserted into the sampling hole until the base plate 8 on the support leg is in contact with the ground, the handle 9 can be driven to rotate. The handle 9 drives the support 11 to rotate, which in turn drives the rotating shaft 1 to rotate. The rotating shaft 1 then drives the multiple excavating buckets 4 on it to rotate. The excavating buckets dig up the soil on the side of the sampling hole near the rotating shaft, and the soil falls into the sample collection component 4 below. When the rotating shaft is rotated one revolution, soil sampling is achieved. Then, the entire utility model can be removed from the sampling hole to complete the soil sampling work.

[0046] In some embodiments, an anti-slip sleeve 10 is added to prevent the hand handle from slipping. The anti-slip sleeve 10 is fitted onto the handle 9.

[0047] The anti-slip sleeve can be made of rubber, and its outer surface can have multiple protrusions, pits, or wavy patterns. These protrusions, pits, or wavy patterns can all increase the friction between the hand and the anti-slip sleeve, making it easier for the hand to grip the handle firmly.

[0048] In some embodiments, an electrically driven structure is provided, which includes a drive motor 12, a support plate 15, and a bracket 13. The drive motor 12 is mounted on the support plate 15 and is connected to the rotating shaft 1 for transmission, and the support plate 15 is mounted on the bracket 13.

[0049] like Figure 2 As shown, bracket 13 can be installed on support leg 5. Bracket 13 is used to support and fix support plate 15, and support plate 15 is used to support and install drive motor 12.

[0050] It should be noted that one power supply method for the drive motor is battery power. This is beneficial for field sampling operations.

[0051] Work style:

[0052] First, drilling tools such as ground drills are used to drill vertically downward sampling holes at the sampling points. Then, multiple sample collection pieces 3 and excavator buckets 4 are placed into the sampling holes through the rotating shaft 1. When the base plate 8 and fixing plate 16 on the support leg 5 touch the ground, fixing nails 17 are used to drive through the through hole 61 and into the ground, fixing nails 17 fix the fixing plate 16 to the ground.

[0053] Start the drive motor 12, which drives the rotating shaft 1 to rotate. The rotating shaft 1 then drives multiple digging buckets 4 on it to rotate simultaneously. The rotating digging buckets dig up the soil on the side of the sampling hole near the rotating shaft. When the digging buckets dig up the soil, the excavated soil falls into the sample collection unit 3. The sample collection unit 3 collects the soil sample. The drive motor drives the rotating shaft to rotate one revolution, which completes the soil digging and sampling.

[0054] Then, stop the drive motor and remove the entire heavy metal soil stratification sampling device from the sampling hole to complete the soil sample collection.

[0055] In some embodiments, a bushing 14 is added to ensure stable rotation of the shaft. The bushing 14 passes through the support plate 15 and is fixedly connected to the support plate 15. The shaft 1 passes through the bushing 14 and is connected to the drive motor 12 for transmission.

[0056] The bushing 14 can support the rotation of the shaft 1 and reduce the sway generated when the shaft rotates.

[0057] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A heavy metal soil stratification sampling device, characterized in that: include Shaft (1); A digging bucket (4), wherein multiple digging buckets (4) are arranged in parallel at intervals on the rotating shaft (1); and Sample collection component (3), each digging bucket (4) is equipped with a sample collection component (3), the sample collection component (3) is parallel to the digging bucket (4) at intervals and is rotatably connected to the rotating shaft (1), and the sample collection component (3) is used to collect soil samples dug out by the digging bucket (4); The sample collection component (3) is a cylindrical structure with an open top and a closed bottom; The sample collection component (3) is eccentrically connected to the rotating shaft (1).

2. The heavy metal soil stratified sampling device according to claim 1, characterized in that: It also includes scale lines (7), and scale lines (7) are provided on the rotating shaft (1) along the length direction.

3. The heavy metal soil stratified sampling device according to claim 1, characterized in that: It also includes support legs (5) and a second bearing seat (6), with at least three support legs (5) spaced apart on the side of the second bearing seat (6) and connected to the rotating shaft (1).

4. The heavy metal soil stratified sampling device according to claim 3, characterized in that: It also includes a base plate (8), with a base plate (8) installed at the bottom of each support leg (5).

5. The heavy metal soil stratified sampling device according to claim 4, characterized in that: It also includes a fixing plate (16) and a fixing nail (17). The fixing plate (16) has a through hole (61) and is connected to the base plate (8). The fixing nail (17) is installed through the through hole (61).

6. The heavy metal soil stratified sampling device according to claim 1, characterized in that: The excavator bucket (4) includes A front support plate (42), wherein a plurality of bucket teeth (41) are spaced apart at one end of the front support plate (42); A rear support plate (44), one end of which is connected to the other end of the front support plate (42), and the other end of which is connected to the rotating shaft (1); and The two sides of the front support plate (42) and the rear support plate (44) are connected by the side plate (43), and the side plate is installed at an angle.

7. The heavy metal soil stratified sampling device according to any one of claims 1-6, characterized in that: It also includes a support (11) and a handle (9). The support (11) is fixedly installed on the rotating shaft (1). At least two handles (9) are installed on the support (11) at intervals. The handles (9) are perpendicular to the rotating shaft (1).

8. The heavy metal soil stratified sampling device according to claim 7, characterized in that: It also includes an anti-slip sleeve (10), which is fitted onto the handle (9).

9. The heavy metal soil stratified sampling device according to any one of claims 1-6, characterized in that: It also includes a drive motor (12), a support plate (15) and a bracket (13). The drive motor (12) is mounted on the support plate (15) and is connected to the rotating shaft (1) for transmission. The support plate (15) is mounted on the bracket (13).

10. The heavy metal soil stratified sampling device according to claim 9, characterized in that: It also includes a bushing (14), which passes through the support plate (15) and is fixedly connected to the support plate (15). The rotating shaft (1) passes through the bushing (14) and is connected to the drive motor (12) for transmission.

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