A soil sampling device for soil pollution control and remediation inspection

Abstract

The present invention discloses a soil sampling device for soil pollution control and remediation inspection, which relates to the field of soil sampling, including a mounting plate, a sampling barrel installed at the bottom of the mounting plate, a driving motor installed at the top of the mounting plate, the driving motor used to drive the sampling barrel to rotate, the bottom of the sampling barrel is serrated, and the sampling barrel includes a fixed cylinder and a movable cylinder; the top of the fixed cylinder is fixedly connected with a connecting plate, the output shaft of the driving motor is fixedly connected with the connecting plate, and the top of the movable cylinder is provided with a flange. The soil sampling device for soil pollution control and remediation inspection, through the mutual cooperation between the fixed cylinder and the movable cylinder, can form a complete cylindrical soil sample inside the soil during soil sampling, and will not damage its original state stratification, so that the data information obtained during soil detection and analysis is more accurate.

Description

Technical Field

[0001] The invention relates to soil sampling technology, and in particular to a soil sampling device for soil pollution control and restoration inspection. Background Art

[0002] Soil is an important material basis for human production activities and an indispensable and difficult-to-renew natural resource. Untreated contaminated sites will become chemical time bombs. Once a large-scale outbreak occurs, it will have an immeasurable impact on the country's sustainable development. Therefore, we must attach great importance to the prevention of soil pollution and the remediation of contaminated soil.

[0003] Before soil remediation, it is necessary to use a sampler to sample the soil and analyze the soil samples to obtain the actual pollution status of the soil, so as to facilitate the formulation of more targeted treatment measures to repair and treat the contaminated soil.

[0004] A Chinese patent with the announcement number CN2215374579U discloses a soil collection sampler for convenient continuous sampling, comprising a main rod, a push-down handle is arranged on the top of the main rod, a pedal is arranged on the lower end of the main rod, a sampling barrel is arranged on the lower end of the pedal, a disassembly assembly is arranged on the outer side of the sampling barrel, and a classification sampling assembly is also arranged between the sampling barrel and the main rod, the classification sampling assembly comprises a fixed block fixed to the inner cavity of the main rod and a baffle plate located in the inner cavity of the sampling barrel, a rotating rod is arranged in the fixed block, a partition plate is arranged on the outer side of the bottom of the rotating rod, and a meshing bevel gear is arranged on the top of the rotating rod. During use, soil of different depths can be stored by opening different storage spaces, so that separate sampling of soil of different depths can be realized. However, in actual application, the soil sample is entered through the soil inlet arranged on the side, which will make the collected soil too loose and unable to maintain the actual distribution state of the soil layer;

[0005] A conventional soil sampler, such as a Chinese patent with announcement number CN208206539U, discloses a soil sampler that samples soil samples through a straight-cylinder sample collection tube. Although a relatively complete soil layer distribution state sample can be obtained during the sampling process, it is inconvenient to remove the sample. The sample is withdrawn by squeezing, which causes the sample to be excessively squeezed during the removal process, resulting in serious damage to the soil layer distribution state of the sample, which is not conducive to a better state analysis of the contaminated soil.

[0006] Therefore, the present invention provides a soil sampling device for soil pollution control and remediation inspection to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to provide a soil sampling device for soil pollution control and remediation inspection to solve the above-mentioned deficiencies in the prior art.

[0008] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a soil sampling device for soil pollution control and remediation inspection, comprising a mounting plate, a sampling barrel is mounted at the bottom of the mounting plate, a driving motor is mounted at the top of the mounting plate, the driving motor is used to drive the sampling barrel to rotate, the bottom of the sampling barrel is serrated, and the sampling barrel comprises a fixed barrel body and a movable barrel body;

[0009] A connecting disk is fixedly connected to the top of the fixed cylinder, and the output shaft of the driving motor is fixedly connected to the connecting disk. A flange is provided at the top of the movable cylinder, and connecting screw holes are provided on the surfaces of the connecting disk and the flange. Locking studs are threadedly connected to the inner sides of the connecting screw holes. Splicing sections are provided on the surfaces of the fixed cylinder and the movable cylinder, and vertical guide grooves are provided on the surfaces of the splicing sections on the fixed cylinder, and vertical guide strips are fixedly connected to the surfaces of the splicing sections on the fixed cylinder.

[0010] Furthermore, the shape and size of the vertical guide groove are compatible with the vertical guide bar, and the vertical guide bar can be embedded in the vertical guide groove.

[0011] Furthermore, the shape of the splicing section on the fixed cylinder is L-shaped, the shape and size of the splicing section on the movable cylinder are compatible with the splicing section on the fixed cylinder, and the height of the movable cylinder is compatible with the distance between the bottom surface of the splicing section on the fixed cylinder and the bottom surface of the connecting plate.

[0012] Furthermore, a partition is fixedly connected to the inner wall of the fixed cylinder, and the fixed cylinder is divided into an air cavity and a containing cavity by the partition. An air pipe is fixedly connected to the outside of the fixed cylinder, and an air groove is opened between the air cavity and the containing cavity.

[0013] Furthermore, the width of the air groove is 5 mm, and the air groove is arranged on a side close to the inner wall of the fixed cylinder.

[0014] Furthermore, an air pump is fixedly installed on the top of the mounting plate, an inflation hose is connected to the outside of the air pump, an internal threaded cap is provided at the end of the inflation hose, a threaded portion is provided on the outside of the air pipe, and the internal threaded cap can be threadedly connected to the threaded portion.

[0015] Furthermore, the side of the mounting plate is in a circular ring shape and is equidistantly fixedly connected with four extension plates, the shape of the extension plate is a cross, the outside of the extension plate is provided with support legs, the bottom of the support legs is provided with a reinforcement plate, and the bottom of the reinforcement plate is provided with a plurality of anchor rods.

[0016] Furthermore, a vertical groove is provided on the side surface of the supporting leg, the cross-section of the vertical groove is in a cross shape, and the extension plate is slidably connected to the inner side surface of the vertical groove.

[0017] Furthermore, a slot is provided on the side of the support leg, and a support plate is slidably connected to the inner side of the slot. The distance between the support plate and the top surface of the vertical slot is matched with the thickness of the extension plate. Limiting slots are provided on both sides of the inner wall of the slot, and limiting blocks matched with the limiting slots are provided on both sides of the support plate. A pull plate is installed at the end of the support plate away from the limiting block.

[0018] Compared with the prior art, the soil sampling device for soil pollution control and remediation inspection provided by the present invention has the following beneficial effects:

[0019] 1. The soil sampling device for soil pollution control and remediation inspection can form a complete cylindrical soil sample inside the soil during soil sampling through the cooperation between the fixed cylinder and the movable cylinder, without damaging the original state of stratification, so that the data information obtained during soil detection and analysis is more accurate.

[0020] 2. The soil sampling device for soil pollution control and remediation inspection cooperates with the air cavity, the containing cavity, the air groove and the air pipe so that during the soil sampling process, the gas inside the containing cavity can be discharged from the air pipe to the outside of the sampling tube under the pressure of the soil, so that the gas inside the sampling tube will not completely penetrate into the soil sample under the pressure of the soil sample, causing its internal state to be seriously damaged.

[0021] 3. The soil sampling device for soil pollution control and remediation inspection, through the cooperation between the air pump, the inflation hose, the internal threaded cap and the threaded part, can blow gas between the sample and the inner wall of the holding chamber when taking out the sample inside the holding chamber, so that the gas impacts the connecting surface between the two, so that the soil sample can be better separated from the inner wall of the holding chamber, thereby facilitating the more complete removal of the soil sample.

[0022] 4. The soil sampling device for soil pollution control and remediation inspection can stably guide the downward movement of the sampling tube during the soil sampling process through the mutual cooperation between the supporting legs, the vertical grooves and the extension plates, thereby making the sampling process of the sampling tube more stable and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the connection structure between the sampling tube and the connecting plate provided in an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the structure of the fixed cylinder and the movable cylinder in a separated state provided by an embodiment of the present invention;

[0027] Figure 4 The embodiment of the present invention provides Figure 3 The enlarged structural diagram at A in the middle;

[0028] Figure 5 The embodiment of the present invention provides Figure 3 The enlarged structural diagram at B in the middle;

[0029] Figure 6 A schematic diagram of a partial cross-sectional structure of a fixed cylinder provided in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the transverse cross-sectional structure of a support leg provided in an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. Mounting plate; 2. Sampling cylinder; 21. Fixed cylinder; 22. Movable cylinder; 3. Connecting plate; 31. Flange; 32. Connecting screw hole; 33. Locking stud; 34. Splicing section; 35. Vertical guide groove; 36. Vertical guide strip; 4. Partition plate; 41. Air cavity; 42. Receiving cavity; 43. Air pipe; 44. Air groove; 5. Air pump; 51. Inflating hose; 52. Internal threaded cap; 53. Threaded part; 6. Extension plate; 61. Support leg; 62. Reinforcement plate; 63. Anchor rod; 64. Vertical groove; 65. Slot; 66. Support plate; 67. Limiting groove; 68. Limiting block; 69. Pull plate. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] Embodiment 1:

[0035] See also Figure 1-Figure 6 A soil sampling device for soil pollution control and remediation inspection comprises a mounting plate 1, a sampling barrel 2 is mounted at the bottom of the mounting plate 1, a driving motor is mounted on the top of the mounting plate 1, the driving motor is used to drive the sampling barrel 2 to rotate, the bottom of the sampling barrel 2 is serrated, and the sampling barrel 2 comprises a fixed barrel 21 and a movable barrel 22;

[0036] A connecting disk 3 is fixedly connected to the top of the fixed cylinder 21, and the output shaft of the driving motor is fixedly connected to the connecting disk 3. A flange 31 is provided at the top of the movable cylinder 22. Connecting screw holes 32 are provided on the surfaces of the connecting disk 3 and the flange 31. Locking studs 33 are threadedly connected to the inner side surfaces of the connecting screw holes 32. Splicing sections 34 are provided on the surfaces of the fixed cylinder 21 and the movable cylinder 22. A vertical guide groove 35 is provided on the surface of the splicing section 34 on the fixed cylinder 21, and a vertical guide bar 36 is fixedly connected to the surface of the splicing section 34 on the fixed cylinder 21.

[0037] It should be noted that the shape and size of the vertical guide groove 35 are compatible with the vertical guide bar 36 , and the vertical guide bar 36 can be embedded in the vertical guide groove 35 .

[0038] It should be further explained that the shape of the splicing section 34 located on the fixed cylinder 21 is L-shaped, and the shape and size of the splicing section 34 located on the movable cylinder 22 are compatible with the splicing section 34 located on the fixed cylinder 21, and the height value of the movable cylinder 22 is compatible with the distance value between the bottom surface of the splicing section 34 located on the fixed cylinder 21 and the bottom surface of the connecting disk 3, so that the movable cylinder 22 can be inserted between the fixed cylinder 21 and the connecting disk 3, and with the cooperation of the vertical guide bar 36, the vertical guide groove 35, the locking stud 33 and the connecting screw hole 32, the movable cylinder 22 and the fixed cylinder 21 can be stably connected.

[0039] The inner wall of the fixed cylinder 21 is fixedly connected with a partition 4, and the fixed cylinder 21 is divided into an air cavity 41 and a containing cavity 42 by the partition 4. The outside of the fixed cylinder 21 is fixedly connected with an air pipe 43, and an air groove 44 is opened between the air cavity 41 and the containing cavity 42.

[0040] It should be noted that the width of the air groove 44 is 5 mm, and the air groove 44 is arranged on a side close to the inner wall of the fixed cylinder 21, so that the width of the air groove 44 is small, while also meeting the passage of gas.

[0041] When sampling, the operator places the sampling tube 2 vertically and places its bottom end on the surface of the soil layer, and then drives the connecting disk 3 to rotate through the driving motor on the top of the mounting disk 1. The rotation of the connecting disk 3 drives the movable cylinder 22 and the fixed cylinder 21 to rotate. At this time, the operator applies downward pressure to the mounting disk 1, so that with the cooperation of the serrated bottom, the sampling tube 2 can be well drilled into the soil layer for soil sampling. In the process of the sampling tube 2 drilling into the soil layer, as the soil enters the sampling tube 2, the gas in the sampling tube 2 can pass through the air groove 44 and enter the air cavity 41 under the pressure of the soil, and finally be discharged from the air pipe 43 outside the air cavity 41 to the external environment, so that the air inside the sampling tube 2 will not affect the state of the soil.

[0042] When taking out the sample, the locking stud 33 is rotated to withdraw it from the flange 31 and the connecting screw hole 32 on the connecting plate 3, so that the locking stud 33 no longer restricts the movement of the movable cylinder 22. At this time, the operator can move the movable cylinder 22 away from the fixed cylinder 21 to separate the movable cylinder 22 from the fixed cylinder 21, and then the operator can take the cylindrical soil sample out of the fixed cylinder 21.

[0043] Embodiment 2:

[0044] See also Figure 2 , Figure 6 This embodiment provides a technical solution based on the above embodiment: an air pump 5 is fixedly installed on the top of the mounting plate 1, an air inflation hose 51 is connected to the outside of the air pump 5, an internal threaded cap 52 is provided at the end of the air inflation hose 51, a threaded portion 53 is provided on the outside of the air pipe 43, and the internal threaded cap 52 can be threadedly connected to the threaded portion 53.

[0045] During the sample removal process, the operator connects the inflation hose 51 to the air pipe 43 through the cooperation of the internal threaded cap 52 and the threaded portion 53. When the movable cylinder 22 is removed, the operator cuts off the sample bottom along the end surface of the splicing section 34 on the fixed cylinder 21 away from the connecting plate 3, so that the length of the cylindrical soil sample is close to the length of the splicing section 34. Then the operator rotates the side of the cylindrical soil sample away from the fixed cylinder 21 downward to make it face downward. At this time, the operator turns on the air pump 5 and sends gas into the inflation hose 51 through the air pump 5. The incoming gas passes through the air pipe 43, the air cavity 41 and the like in sequence. And the air groove 44 enters the containing chamber 42. Since the width of the air groove 44 is small, when the gas passes through the air groove 44 and enters the containing chamber 42, it can well impact the contact surface between the cylindrical soil sample and the containing chamber 42, so that the soil sample and the containing chamber 42 can be well separated, and under the action of the soil sample's own weight, it is separated from the inner wall of the containing chamber 42, which not only makes it more convenient to remove the soil sample, but also makes the cylindrical soil sample can be taken out more completely, and it is not easy to destroy the original stratification state of the soil inside the soil sample, which is conducive to the analysis of the pollution state of the soil layer.

[0046] Embodiment three:

[0047] See also Figure 1-Figure 2 , Figure 7 This embodiment provides a technical solution based on the above embodiment: the side of the mounting plate 1 is in a circular ring shape and is equidistantly fixedly connected with four extension plates 6, the shape of the extension plate 6 is a cross, and a support leg 61 is arranged on the outside of the extension plate 6, a reinforcement plate 62 is arranged at the bottom of the support leg 61, and a plurality of anchor rods 63 are arranged at the bottom of the reinforcement plate 62.

[0048] In this embodiment, a vertical groove 64 is formed on the side surface of the supporting leg 61 . The cross-section of the vertical groove 64 is cross-shaped. The extension plate 6 is slidably connected to the inner side surface of the vertical groove 64 .

[0049] It should be noted that by setting the vertical groove 64 to have a cross-shaped cross section and matching with the extension plate 6, after the extension plate 6 enters the vertical groove 64, it can only move along the length direction of the vertical groove 64, thereby providing a stable guide for the movement of the extension plate 6.

[0050] In the embodiment itself, a slot 65 is opened on the side of the support leg 61, and the inner side of the slot 65 is slidably connected with a support plate 66. The distance value between the support plate 66 and the top surface of the vertical slot 64 is adapted to the thickness value of the extension plate 6, so that the support plate 66 can stably abut and limit the extension plate 6 to the top of the vertical slot 64.

[0051] Furthermore, limiting grooves 67 are provided on both sides of the inner wall of the slot 65 , limiting blocks 68 matching the limiting grooves 67 are provided on both sides of the support plate 66 , and a pull plate 69 is installed at one end of the support plate 66 away from the limiting block 68 .

[0052] It should be noted that the size of the pull plate 69 is greater than the size of the slot 65, so that with the cooperation of the limiting block 68, the limiting groove 67 and the pull plate 69, the support plate 66 cannot be withdrawn from the slot 65, making it difficult to fall and convenient to use.

[0053] When taking soil samples, the anchor rods 63 at the bottom of the four support legs 61 are inserted into the soil layer, and the reinforcement plates 62 are in full contact with the surface of the soil layer, so that the support legs 61 can be more stably supported with the cooperation of the reinforcement plates 62 and the anchor rods 63. Then, the operator pulls the pull plate 69 outward, and the movement of the pull plate 69 drives the support plate 66 to move, so that the support plate 66 is separated from the extension plate 6. At this time, the downward movement of the extension plate 6 is no longer restricted. At this time, the operator can apply downward pressure to the mounting plate 1. Under the cooperative guiding action of the extension plate 6 and the vertical groove 64, the mounting plate 1 can move downward smoothly and drive the sampling tube 2 to move downward into the soil layer for sampling. The sampling tube 2 can always remain in a vertical state during the sampling process, so that its sampling stability is better.

[0054] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A soil sampling device for soil pollution control and remediation inspection, comprising a mounting plate (1), a sampling tube (2) being mounted at the bottom of the mounting plate (1), a driving motor being mounted at the top of the mounting plate (1), the driving motor being used to drive the sampling tube (2) to rotate, and characterized in that: The bottom of the sampling cylinder (2) is arranged in a sawtooth shape, and the sampling cylinder (2) comprises a fixed cylinder body (21) and a movable cylinder body (22); A connecting plate (3) is fixedly connected to the top of the fixed cylinder (21), and the output shaft of the driving motor is fixedly connected to the connecting plate (3). A flange (31) is provided at the top of the movable cylinder (22). The connecting plate (3) and the flange (31) are both provided with connecting screw holes (32). The inner side surface of the connecting screw hole (32) is threadedly connected with a locking stud (33). The surfaces of the fixed cylinder (21) and the movable cylinder (22) are both provided with a splicing section (34). A vertical guide groove (35) is provided on the surface of the splicing section (34) on the fixed cylinder (21). A vertical guide bar (36) is fixedly connected to the surface of the splicing section (34) on the movable cylinder (22). The shape and size of the vertical guide groove (35) are compatible with the vertical guide bar (36). The vertical guide bar (36) is embedded in the vertical guide groove (35). The inner wall of the fixed cylinder (21) is fixedly connected to a partition (4), the fixed cylinder (21) is divided by the partition (4) to form an air cavity (41) and a containing cavity (42), the outside of the fixed cylinder (21) is fixedly connected to an air pipe (43), an air groove (44) is provided between the air cavity (41) and the containing cavity (42), the width of the air groove (44) is 5 mm, and the air groove (44) is provided on a side close to the inner wall of the fixed cylinder (21); An air pump (5) is fixedly mounted on the top of the mounting plate (1); an air inflation hose (51) is connected to the outside of the air pump (5); an internal threaded cap (52) is provided at the end of the air inflation hose (51); a threaded portion (53) is provided on the outside of the air pipe (43); and the internal threaded cap (52) is threadedly connected to the threaded portion (53).

2. A soil sampling device for soil pollution control and remediation inspection according to claim 1, characterized in that: The shape of the splicing section (34) on the fixed cylinder (21) is L-shaped, the shape and size of the splicing section (34) on the movable cylinder (22) are compatible with the splicing section (34) on the fixed cylinder (21), and the height of the movable cylinder (22) is compatible with the distance between the bottom surface of the splicing section (34) on the fixed cylinder (21) and the bottom surface of the connecting plate (3).

3. A soil sampling device for soil pollution control and remediation inspection according to claim 1, characterized in that: The side surface of the mounting plate (1) is in the shape of a circular ring and is equidistantly fixedly connected with four extension plates (6); the extension plate (6) is in the shape of a cross; support legs (61) are arranged outside the extension plate (6); a reinforcement plate (62) is arranged at the bottom of the support leg (61); and a plurality of anchor rods (63) are arranged at the bottom of the reinforcement plate (62).

4. A soil sampling device for soil pollution control and remediation inspection according to claim 3, characterized in that: A vertical groove (64) is provided on the side surface of the supporting leg (61), the cross-sectional shape of the vertical groove (64) is a cross, and the extension plate (6) is slidably connected to the inner side surface of the vertical groove (64).

5. A soil sampling device for soil pollution control and remediation inspection according to claim 4, characterized in that: A slot (65) is provided on the side of the support leg (61), and a support plate (66) is slidably connected to the inner side of the slot (65). The distance between the support plate (66) and the top surface of the vertical slot (64) matches the thickness of the extension plate (6). Limiting slots (67) are provided on both sides of the inner wall of the slot (65), and limiting blocks (68) matching the limiting slots (67) are provided on both sides of the support plate (66). A pull plate (69) is installed at one end of the support plate (66) away from the limiting block (68).

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