Sampling equipment for soil remediation

Abstract

The invention relates to the technical field of soil sampling equipment, and discloses sampling equipment for soil remediation, which comprises a lower insertion rod, a baffle is in pin joint with the bottom of an inner cavity of the lower insertion rod, a mounting groove is formed in the edge of the interior of the lower insertion rod, one side of the bottom end of the baffle is elastically connected with the bottom of the inner cavity of the lower insertion rod, and a sampling pipe is arranged in the mounting groove. A clamping block is fixedly installed at the top end of the sampling pipe, a linkage rod is movably sleeved with the top of an inner cavity of the lower inserting rod, a clamping column matched with the clamping block for clamping is fixedly installed at the bottom of one side of the outer surface of the linkage rod, and meanwhile an upper column body with the bottom end making contact with the top end of the sampling pipe is in threaded connection with the top of the inner wall of the lower inserting rod. According to the sampling equipment for soil remediation, the baffle and the sampling pipes are arranged on the lower inserting rod, multiple sets of sampling pipes can be arranged in the lower inserting rod, the sampling pipes are triggered at the same position at different depths so as to obtain soil samples at different depths, operation is easy, and the soil sampling efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of soil sampling equipment, and in particular to a sampling equipment for soil remediation. Background Art

[0002] Soil remediation is a process that uses physical, chemical or biological methods to transfer, absorb, degrade or transform pollutants in the soil to reduce their concentration to an acceptable level, or to transform toxic and harmful pollutants into harmless substances. It can be widely used in various industrial, agricultural and mining lands. In addition, in order to accurately remediate the contaminated land, soil sampling operations need to be carried out in the early stage of the investigation to fully understand the pollutants and their distribution status in the land; However, the existing soil sampling device has a single function. When sampling soil, it can only sample soil of a specific depth at a specific location at a time. When sampling soil of different depths at the same location, it is necessary to insert and remove the sampling tube multiple times. The operation is cumbersome and the efficiency is relatively low. In addition, due to the semi-open structure design of the sampling tube, it is very easy to come into contact with the upper soil during the process of taking out the soil after sampling, causing "contamination" to the sampled soil, which greatly affects the analysis of the pollutants and their distribution status in the area, and the stability and reliability are poor.

[0003] Therefore, there is an urgent need for a soil remediation sampling device to solve the defects of the above-mentioned existing soil sampling devices during actual use. Summary of the invention

[0004] The present application proposes a sampling device for soil remediation, which can sample soil samples of different depths at the same location, is simple to operate and has a high efficiency in soil sampling. At the same time, it has the advantage of not coming into contact with the upper soil layer during the process of soil sampling and taking out. It is used to solve the problem that the existing soil sampling device has a single function. When sampling soil, only soil of a specific depth can be sampled at a specific location at a time. When sampling soil of different depths at the same location, it is necessary to insert and remove the sampling tube multiple times, which is cumbersome to operate and has a relatively low efficiency. In addition, due to the design of the semi-open structure of the sampling tube, it is very easy to come into contact with the upper soil layer during the process of soil sampling and taking out, causing "contamination" to the sampled soil.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a sampling device for soil remediation, comprising a lower plug rod for inserting into the soil at the sampling location, the bottom of the inner cavity of the lower plug rod is pinned with three groups of baffles arranged in a circular array, and three groups of mounting grooves with bottom ends extending to the bottom of the lower plug rod are opened at the edge of the inner part of the lower plug rod, one side of the bottom end of the baffle is elastically connected to the bottom of the inner cavity of the lower plug rod through an elastic rod, and initially, the outer surface of the baffle coincides with the bottom of the outer surface of the lower plug rod, thereby forming a complete curved bottom on the outer surface of the lower plug rod. The invention discloses a surface structure, and when the lower insertion rod is inserted into the soil, the soil is prevented from entering the interior of the lower insertion rod; a sampling tube for sampling soil is arranged inside the installation groove, and a clamping block made of elastic rubber material is fixedly installed on the top of the sampling tube; a linkage rod is movably sleeved on the top of the inner cavity of the lower insertion rod, and a clamping column which can cooperate with the clamping block is fixedly installed on the bottom of one side of the outer surface of the linkage rod; at the same time, an upper cylinder whose bottom end contacts the top of the sampling tube is threadedly connected to the top of the inner wall of the lower insertion rod, and the sampling tube is arranged inside the lower insertion rod through the upper cylinder.

[0006] Furthermore, a rectangular groove is provided in the middle of the lower insertion rod and at the corresponding positions of the three groups of baffles, and a limit slot that passes through from top to bottom is provided on one side of the top of the baffle and its pin shaft, a card plate with an L-shaped structure is clamped in the rectangular groove, and the bottom of one side of the card plate is elastically connected to the middle of the inner cavity of the lower insertion rod through an elastic member, and at the initial stage, the bottom end of the card plate and the limit slot overlap with each other, thereby limiting the rotation movement of the baffle plate, so as to further prevent the baffle plate from being pushed open by the soil and entering the interior of the lower insertion rod during the process of inserting the lower insertion rod into the soil, and at the same time, the baffle plate at the corresponding position can be used to block the bottom end of the sampling tube to prevent the soil sampled in the sampling tube from contacting the soil at other depths, a groove is provided in the middle of one side of the card plate, and the groove can be used to avoid the interference of the card plate with the baffle plate when it rotates, and a protrusion is fixedly installed on one side of the bottom end of the linkage rod.

[0007] Furthermore, a limiting straight groove is opened in the inner cavity of the lower insertion rod and at a position corresponding to the installation groove, and an annular groove is opened at the top of the inner cavity of the lower insertion rod. At the same time, a first limiting block matching the limiting straight groove is fixedly installed on one side of the top of the sampling tube, and a second limiting block matching the first limiting block is fixedly installed on the bottom of the outer surface of the linkage rod, so that when the linkage rod is rotated, the second limiting block thereon can rotate along the trajectory of the annular groove, so that the linkage rod will not interfere with the lower insertion rod when rotating.

[0008] Furthermore, a positioning groove in an L-shaped structure is opened on one side of the outer surface of the linkage rod, and a positioning ring is movably sleeved on the top of the outer surface of the linkage rod, and a protrusion matching the positioning groove is provided on the inner wall of the positioning ring, and the relative connection relationship between the lower plug rod and the linkage rod can be adjusted by rotating the positioning ring. When the lower plug rod and the structure thereon need to move downward as a whole, an axial fixed connection is formed between the lower plug rod and the linkage rod by rotating the positioning ring. When the linkage rod needs to be moved downward alone, an axial movable connection is formed between the lower plug rod and the linkage rod by rotating the positioning ring.

[0009] Furthermore, three groups of second magnetic strips corresponding to the positions of the three sampling tubes are provided on the top of the upper column, and three groups of first magnetic strips corresponding to the positions of the three sampling tubes are provided on the outer surface of the linkage rod, and the magnetic poles of the second magnetic strips are opposite to those of the first magnetic strips. The setting of the first magnetic strips and the second magnetic strips can effectively ensure the 120° rotation of the linkage rod, and the structure on the lower insertion rod will not fail to move when the linkage rod is pressed due to the rotation angle of the linkage rod being too large or too small.

[0010] Furthermore, the top of one side of the baffle is provided with a slope structure, and the bottom of one side thereof is set to an arc-shaped curved surface structure identical to the bottom of the lower insertion rod. At the same time, the bottom end of the sampling tube is set to a bevel shape adapted to the slope structure of the baffle, thereby effectively improving the sealing performance of the baffle to the bottom end of the sampling tube, and at the same time, the baffle can be stably pushed open during the downward movement of the sampling tube.

[0011] The beneficial effects of the present invention are as follows: The present application provides a sampling device for soil remediation. With respect to the setting of a baffle plate and a sampling tube on a lower insertion rod, multiple groups of sampling tubes can be set in the lower insertion rod, and the sampling tubes can be triggered at different depths at the same position to obtain soil samples of different depths. The operation is simple and the efficiency of soil sampling is high. After the soil sampling at different depths is completed, the baffle plate can be used to seal the bottom end of the sampling tube to effectively prevent the soil sample collected in the sampling tube from contacting the soil at other depths, thereby making the soil sample collection accuracy higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a front view of the structure of the present invention; Figure 3 It is a structural schematic diagram of the lower insertion rod of the present invention; Figure 4 It is a structural schematic diagram of the baffle of the present invention; Figure 5 It is a structural schematic diagram of the card board of the present invention; Figure 6 It is a structural schematic diagram of the sampling tube of the present invention; Figure 7 It is a structural schematic diagram of the linkage rod of the present invention.

[0013] In the figure: 1-lower plug rod, 2-baffle, 3-rectangular groove, 4-limiting straight groove, 5-ring groove, 6-installation groove, 7-clip plate, 8-elastic member, 9-groove, 10-limiting card slot, 11-sampling tube, 12-first limit block, 13-card block, 14-linkage rod, 15-protrusion, 16-second limit block, 17-card column, 18-first magnetic strip, 19-positioning groove, 20-upper column, 21-second magnetic strip, 22-positioning ring. DETAILED DESCRIPTION

[0014] 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.

[0015] like Figure 1 As shown, a sampling device for soil remediation includes a lower rod 1 for inserting into the soil at a sampling location, the bottom of the inner cavity of the lower rod 1 is pinned with three groups of baffles 2 arranged in a circular array, and three groups of mounting grooves 6 with bottom ends extending to the bottom of the lower rod 1 are opened at the edge of the inner part of the lower rod 1, one side of the bottom end of the baffle 2 is elastically connected to the bottom of the inner cavity of the lower rod 1 through an elastic rod, and initially, the outer surface of the baffle 2 is overlapped with the bottom of the outer surface of the lower rod 1, so that the bottom of the outer surface of the lower rod 1 forms a complete curved surface structure, and when the lower rod 1 is inserted into the soil, the soil is prevented from entering the interior of the lower rod 1, and a sampling tube 11 for sampling soil is provided inside the mounting groove 6, as shown in FIG. Figure 6 As shown, a clamping block 13 made of elastic rubber material is fixedly installed on the top of the sampling tube 11; The top of the inner cavity of the lower plug rod 1 is movably sleeved with a linkage rod 14. Figure 7As shown, a clamping column 17 that can cooperate with the clamping block 13 is fixedly installed at the bottom of one side of the outer surface of the linkage rod 14, and at the same time, an upper cylinder 20 whose bottom end contacts the top of the sampling tube 11 is threadedly connected to the top of the inner wall of the lower plug rod 1, and then the sampling tube 11 is set inside the lower plug rod 1 through the upper cylinder 20; When inserting the lower insertion rod 1 to a specific area depth for soil sampling, first rotate the linkage rod 14 to rotate the clamping column 17 at the bottom of its outer surface to above the position of the corresponding sampling tube 11, and then press the linkage rod 14 downward to force the clamping column 17 thereon to engage with the clamping block 13 at the top of the sampling tube 11, and in the process of continuously pressing the linkage rod 14 downward, the sampling tube 11 is driven to move downward and push open the baffle 2 to perform soil sampling operations; After the soil sampling is completed, the block 13 is squeezed and deformed as the sampling tube 11 enters the installation groove 6, so that a fixed connection is formed between the block 13 and the clamping column 17 and the clamping column 17 can withstand the tension, and then the sampling tube 11 can be driven to move upward in the process of pulling the linkage rod 14 upward until it is restricted by the upper column 20 and returns to the initial position, and the baffle 2 returns to the initial position under the action of the elastic rod to form a blockage for the bottom end of the sampling tube 11; When it is necessary to sample soil at different depths in the same area, continue to insert the lower rod 1 downward until it reaches the next sampling depth, then rotate the linkage rod 14 120° counterclockwise or clockwise, and rotate the clamping column 17 at the bottom of its outer surface to above the position of the next sampling tube 11, and repeat the above steps to perform soil sampling operations at different depths.

[0016] like Figure 1 , Figure 3 , Figure 4 as well as Figure 5 As shown, in the present technical scheme, a rectangular groove 3 is provided in the middle of the lower plug rod 1 and at the corresponding positions of the three groups of baffles 2, and a limit slot 10 that passes through from top to bottom is provided on one side of the top of the baffle 2 and its pin shaft, and a card plate 7 with an L-shaped structure is clamped in the rectangular groove 3, and the bottom of one side of the card plate 7 is elastically connected to the middle of the inner cavity of the lower plug rod 1 through an elastic member 8, and at the beginning, the bottom end of the card plate 7 and the limit slot 10 overlap with each other, thereby limiting the rotation movement of the baffle 2, so as to further prevent the baffle 2 from being pushed open by the soil and entering the interior of the lower plug rod 1 during the process of inserting the lower plug rod 1 into the soil, and at the same time, the baffle 2 at the corresponding position can form a blockage for the bottom end of the sampling tube 11 to prevent the soil sampled in the sampling tube 11 from contacting the soil at other depths, and a groove 9 is provided in the middle of one side of the card plate 7, and the groove 9 can be used to avoid the interference of the card plate 7 with the baffle 2 when it rotates, as shown in FIG. Figure 7 As shown, a protrusion 15 is fixedly installed on one side of the bottom end of the linkage rod 14; When the linkage rod 14 is pressed to perform soil sampling, the projection 15 on the linkage rod 14 first forces the card plate 7 to move downward and compress the elastic member 8, so that the groove 9 on the card plate 7 coincides with the position of the limit card slot 10, thereby releasing the locking of the bottom end of the card plate 7 on the rotation of the baffle 2, and in the process of continuously pressing the linkage rod 14, repeating the above steps to perform soil sampling at the depth; Furthermore, since the lower insertion rod 1 stops moving after reaching a certain depth, during the continuous downward movement of the linkage rod 14, even if it contacts other group clamping plates 7 and releases the locking action on them, the baffles 2 at other positions will not be easily pushed open due to the action of the elastic rod.

[0017] like Figure 1 , Figure 3 , Figure 6 as well as Figure 7 As shown, in the present technical solution, a limiting straight groove 4 is provided in the inner cavity of the lower plug rod 1 and at a position corresponding to the mounting groove 6, and an annular groove 5 is provided at the top of the inner cavity of the lower plug rod 1. At the same time, a first limiting block 12 matching the limiting straight groove 4 is fixedly installed on one side of the top of the sampling tube 11, and a second limiting block 16 matching the first limiting block 12 is fixedly installed on the bottom of the outer surface of the linkage rod 14, so that when the linkage rod 14 is rotated, the second limiting block 16 thereon can rotate along the track of the annular groove 5, so that the linkage rod 14 will not interfere with the lower plug rod 1 when rotating; After the three groups of sampling tubes 11 on the lower insertion rod 1 have completed sampling, the upper column 20 is unscrewed and the linkage rod 14 is pulled upward. Under the action of the second limit block 16 and the first limit block 12, the three groups of sampling tubes 11 can be forced to move upward synchronously until the sampling tubes 11 are higher than the top of the lower insertion rod 1, so that the sampling tubes 11 and the soil sampled by them can be taken out, and the sampled soil can be analyzed.

[0018] like Figure 1 as well as Figure 7 As shown, in the present technical solution, a positioning groove 19 with an L-shaped structure is opened on one side of the outer surface of the linkage rod 14, and a positioning ring 22 is movably sleeved on the top of the outer surface of the linkage rod 14, and a protrusion matching the positioning groove 19 is provided on the inner wall of the positioning ring 22, and then the relative connection relationship between the lower insertion rod 1 and the linkage rod 14 can be adjusted by rotating the positioning ring 22. When the lower insertion rod 1 and the structure thereon need to be moved downward as a whole, an axial fixed connection is formed between the lower insertion rod 1 and the linkage rod 14 by rotating the positioning ring 22. When the linkage rod 14 needs to be moved downward alone, an axial movable connection is formed between the lower insertion rod 1 and the linkage rod 14 by rotating the positioning ring 22.

[0019] like Figure 2 as well as Figure 7As shown, in the present technical solution, three groups of second magnetic strips 21 corresponding to the positions of the three groups of sampling tubes 11 are provided on the top of the upper column 20, and three groups of first magnetic strips 18 corresponding to the positions of the three groups of sampling tubes 11 are provided on the outer surface of the linkage rod 14, and the magnetic poles of the second magnetic strips 21 and the first magnetic strips 18 are opposite. The setting of the first magnetic strips 18 and the second magnetic strips 21 can effectively ensure the 120° rotation of the linkage rod 14, and the structure on the lower insertion rod 1 will not fail to move when the linkage rod 14 is pressed due to the rotation angle of the linkage rod 14 being too large or too small.

[0020] like Figure 4 as well as Figure 6 As shown, in the present technical solution, the top of one side of the baffle plate 2 is provided with a slope structure, and the bottom of one side thereof is set to an arc-shaped curved surface structure identical to the bottom of the lower insertion rod 1. At the same time, the bottom end of the sampling tube 11 is set to a groove shape adapted to the slope structure of the baffle plate 2, thereby effectively improving the sealing performance of the baffle plate 2 on the bottom end of the sampling tube 11, and stably pushing the baffle plate 2 open during the downward movement of the sampling tube 11.

[0021] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sampling device for soil remediation, comprising a lower insertion rod (1), characterized in that: The bottom of the inner cavity of the lower plug rod (1) is pinned with three groups of baffles (2) arranged in a circular array, and three groups of mounting grooves (6) with bottom ends extending to the bottom of the lower plug rod (1) are opened at the edge of the inner cavity of the lower plug rod (1). One side of the bottom end of the baffle (2) is elastically connected to the bottom of the inner cavity of the lower plug rod (1) through an elastic rod. A sampling tube (11) is provided inside the mounting groove (6). A clamping block (13) is fixedly installed at the top of the sampling tube (11). A linkage rod (14) is movably sleeved at the top of the inner cavity of the lower plug rod (1). A clamping column (17) that cooperates with the clamping block (13) is fixedly installed at the bottom of one side of the outer surface of the linkage rod (14). At the same time, an upper column (20) whose bottom end contacts the top of the sampling tube (11) is threadedly connected to the top of the inner wall of the lower plug rod (1).

2. The sampling device for soil remediation according to claim 1, characterized in that: A rectangular groove (3) is provided in the middle of the lower plug rod (1) and at corresponding positions of the three groups of baffles (2); a limit slot (10) extending from top to bottom is provided on one side of the top of the baffle (2) and on its pin shaft; a card plate (7) having an L-shaped structure is clamped in the rectangular groove (3); the bottom of one side of the card plate (7) is elastically connected to the middle of the inner cavity of the lower plug rod (1) through an elastic member (8); and at the initial stage, the bottom end of the card plate (7) and the limit slot (10) overlap each other; a groove (9) is provided in the middle of one side of the card plate (7), and a protrusion (15) is fixedly installed on one side of the bottom end of the linkage rod (14).

3. The sampling device for soil remediation according to claim 2, characterized in that: A limiting straight groove (4) is provided in the inner cavity of the lower insertion rod (1) at a position corresponding to the mounting groove (6), and an annular groove (5) is provided at the top of the inner cavity of the lower insertion rod (1). At the same time, a first limiting block (12) matching the limiting straight groove (4) is fixedly installed on one side of the top of the sampling tube (11), and a second limiting block (16) matching the first limiting block (12) is fixedly installed on the bottom of the outer surface of the linkage rod (14).

4. The sampling device for soil remediation according to claim 3, characterized in that: A positioning groove (19) in an L-shaped structure is provided on one side of the outer surface of the linkage rod (14), and a positioning ring (22) is movably sleeved on the top of the outer surface of the linkage rod (14), and a protrusion matching the positioning groove (19) is provided on the inner wall of the positioning ring (22).

5. The sampling device for soil remediation according to claim 1, characterized in that: The top of the upper column (20) is provided with three groups of second magnetic strips (21) respectively corresponding to the positions of the three groups of sampling tubes (11), and the outer surface of the linkage rod (14) is provided with three groups of first magnetic strips (18) respectively corresponding to the positions of the three groups of sampling tubes (11), and the magnetic poles of the second magnetic strips (21) and the first magnetic strips (18) are opposite.

6. The sampling device for soil remediation according to claim 1, characterized in that: The top of one side of the baffle (2) is provided with an inclined surface structure, while the bottom of one side is provided with an arc-shaped curved surface structure identical to the bottom of the lower insertion rod (1). At the same time, the bottom end of the sampling tube (11) is provided with a groove shape adapted to the inclined surface structure of the baffle (2).

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