Sampling device for in-situ chemical oxidation soft flowing soil

Abstract

The utility model relates to the technical field of sampling devices, and discloses a sampling device for in-situ chemical oxidation soft flowing soil, which comprises an outer tube capable of collecting soil when the in-situ chemical oxidation soft flowing soil is treated, a plurality of limiting rings are fixed on the inner wall of the outer tube, and inner tubes are seamlessly and slidably connected to the inner sides of the limiting rings; three first sampling holes are formed in the outer side of the outer pipe, three second sampling holes are formed in the outer side of the inner pipe, a guide cone is fixed to one end of the outer pipe, and a first lengthening pipe and a second lengthening pipe are arranged on one side of the outer pipe and one side of the inner pipe respectively. When the output shaft of the electric screw driver rotates clockwise, the screw rod drives the connecting plate and the rubber scraper on the connecting plate to slide on the inner wall of the inner pipe, so that sampled soil is thoroughly discharged from the second sampling hole, the residual of the sampled soil on the pipe wall is avoided, and the risk of cross contamination is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling device technical field, specifically for a kind of sampling device for in-situ chemical oxidation soft flowing soil. BACKGROUND

[0002] In-situ soil remediation refers to the soil remediation technology that contaminated soil is not moved, and is directly repaired or handled in the position where the site is contaminated;

[0003] Chemical oxidation refers to the process of converting pollutants into stable, low-toxicity or non-toxic substances using chemical oxidants. Common oxidants include ozone, hydrogen peroxide, hypochlorite, chlorine, chlorine dioxide, potassium permanganate and Fenton reagent.

[0004] In the field of environmental remediation, in-situ chemical oxidation technology is an effective method for soil and groundwater pollution remediation. When dealing with soft and highly flowable soil, the traditional soil sampling device often has problems such as limited sampling depth, soil sample residues on the pipe wall leading to cross contamination, etc., affecting the accuracy of sampling. Therefore, a sampling device for in-situ chemical oxidation of soft and flowable soil is proposed. SUMMARY

[0005] The utility model aims at providing a kind of sampling device for in-situ chemical oxidation soft flowing soil, to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of sampling device for in-situ chemical oxidation soft flowing soil, including the outer tube that can be used for in-situ chemical oxidation soft flowing soil treatment to collect soil, the outer tube inner wall is fixed with several limit rings, the limit ring inner side is seamlessly slidably connected with inner tube;

[0007] The outer tube is provided with three first sampling holes on the outside, and the inner tube is provided with three second sampling holes on the outside.

[0008] The outer tube is fixed with a guide cone at one end, and the outer tube and the inner tube are provided with a first extension tube and a second extension tube on one side respectively, and the outer tube, the inner tube, the first extension tube and the second extension tube are provided with a limiting groove on the surface respectively, and the limiting groove is connected with a pin on the inner side.

[0009] The inner tube is provided with a cleaning assembly on one side, and the cleaning assembly is used for cleaning the inner wall of the inner tube.

[0010] As a preferred, the above-mentioned cleaning assembly includes a connecting plate, the connecting plate is connected with a rubber scraper plate slidably connected to the inner wall of the inner tube on the outside, and a nut is fixedly embedded on one side of the connecting plate.

[0011] As preferred, a screw rod is threadedly connected to the inner side of the nut, one end of the screw rod is rotatably connected to the inner side wall of the inner tube through a bearing, and one end of the nut is provided with a hexagonal connecting column.

[0012] As preferred, a sliding column is fixed to the inner wall of the inner tube, and the outer side of the sliding column is slidably connected to one side of the connecting plate.

[0013] As preferred, threads are arranged on the inner wall of one end of the outer tube and the inner tube, and the outer side of one end of the first and second extension tubes is provided with a screw thread connected with the threads.

[0014] As preferred, the second extension tube is located inside the first extension tube, the length of the outer tube is 2500mm, the length of the inner tube is 2600mm, the length of the first and second extension tubes is 2000mm, the length of the first and second sampling holes is 300mm, the width of the first and second sampling holes is 10mm, the diameter of the outer tube and the first extension tube is 40mm, and the diameter of the inner tube and the second extension tube is 32mm.

[0015] Compared with the prior art, the above technical scheme has the following technical effects:

[0016] I. Under the action of the guide cone at the bottom of the outer tube, the outer tube can be conveniently and smoothly inserted into the soil, the dowel is screwed, the dowel is inserted into the inner side of the limiting groove, the inner tube is rotated to make the second sampling hole opposite to the first sampling hole, so that soil sampling at the correct depth is ensured, sampling errors caused by inaccurate depth judgment are avoided, the inner tube is fixed at a specific position by screwing the dowel, so that the soil can only enter the inner tube through the preset sampling hole, effectively preventing the mixing of surrounding soil or impurities, and ensuring the quality and purity of the collected soil sample.

[0017] II. By connecting the hexagonal connecting column with the electric screwdriver, when the output shaft of the electric screwdriver rotates clockwise, the screw rod drives the connecting plate and the rubber scraper thereon to slide on the inner wall of the inner tube, so that the sampled soil is completely discharged from the second sampling hole, avoiding the residue of the sampled soil on the wall of the tube, and reducing the risk of cross contamination.

[0018] III. By connecting the screw threads of the first and second extension tubes with the threads of the outer tube and the inner tube respectively, the overall length of the sampling device can be significantly increased, so that it can be deeply inserted into the soil for sampling, and by simply adding or removing the extension tube, the sampling requirement of different depths can be met without replacing the entire sampling device, improving the convenience of use. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0020] Figure 1 The first perspective view structural diagram of the present application;

[0021] Figure 2 The second perspective view structural diagram of the present application;

[0022] Figure 3 The structural diagram of the screw rod of the present application;

[0023] Figure 4 The structural diagram of the hexagonal connecting column of the present application;

[0024] Figure 5 The structural diagram of the first sampling hole of the present application;

[0025] Figure 6 The structural diagram of the second sampling hole of the present application;

[0026] Figure 7 The structural diagram of the first extension pipe of the present application;

[0027] Figure 8 The structural diagram of the second extension pipe of the present application;

[0028] Figure 9 The overhead structural diagram of the connecting plate of the present application.

[0029] Mark explanation: 1, outer tube; 2, cleaning assembly; 21, slide column; 22, screw rod; 23, rubber scraper; 24, connecting plate; 25, nut; 26, hexagonal connecting column; 3, first sampling hole; 4, guide cone; 5, pin; 6, inner tube; 7, screw; 8, first extension pipe; 9, thread; 10, second sampling hole; 11, second extension pipe; 12, limit ring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0031] It should be noted that the structure, proportion, size, etc. shown in the drawings of the present application are only used to illustrate the content disclosed in the present application, so as to be understood and read by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, and therefore do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose of the present application, should still fall within the scope of the disclosed technology.

[0032] Embodiment

[0033] Please refer to Figures 1-9 The utility model provides a technical scheme: a sampling device for in-situ chemical oxidation soft flowing soil, including the soil collection of being used for in-situ chemical oxidation soft flowing soil processing to soil is gathered to the outer tube 1, a plurality of limit ring 12 are fixed to the inner wall of outer tube 1, the inner side of limit ring 12 is connected with inner tube 6 seamlessly sliding, the outer side of outer tube 1 is set up with the first sampling hole 3 of three numbers, the outer side of inner tube 6 is set up with the second sampling hole 10 of three numbers, the one end of outer tube 1 is fixed with the guide cone 4, the inner tube 6 is inserted in the inner side of limit ring 12, then make the second sampling hole 10 not with the first sampling hole 3 coincide, under the action of the guide cone 4 at the bottom of outer tube 1, can conveniently outer tube 1 very smoothly inserts in the soil inside, and the one side of outer tube 1 and inner tube 6 is provided with first lengthening pipe 8 and second lengthening pipe 11 respectively, and the surface of outer tube 1, inner tube 6, first lengthening pipe 8 and second lengthening pipe 11 is set up with limit slot respectively, and the inner side of limit slot is connected with pin 5, rotates inner tube 6 to make the second sampling hole 10 be located at the one side of first sampling hole 3, then tightens pin 5, makes pin 5 respectively insert in the inner side of limit slot, at this time, the soil passes through first sampling hole 3 and second sampling hole 10 and enters the inner side of inner tube 6;

[0034] The one side of inner tube 6 is provided with cleaning assembly 2, and the cleaning assembly 2 is used for cleaning the inner wall of inner tube 6.

[0035] In order to facilitate the cleaning of the inner tube 6, the cleaning assembly 2 is provided, the cleaning assembly 2 includes the connecting plate 24, the rubber scraper 23 connected to the inner wall of the inner tube 6 is connected outside the connecting plate 24, the nut 25 is fixedly embedded on one side of the connecting plate 24, the hexagonal connecting column 26 is connected with the output end of the electric screwdriver, when the output shaft of the electric screwdriver rotates clockwise, the lead screw 22 is driven to rotate, at this time, the nut 25 of the connecting plate 24 is screwed with the lead screw 22, so that the connecting plate 24 drives the rubber scraper 23 outside to slide on the inner wall of the inner tube 6, the nut 25 is screwed with the lead screw 22 inside, the lead screw 22 is rotatably connected to the inner wall of the inner tube 6 through the bearing on one end, the nut 25 is provided with a hexagonal connecting column 26 on one end, the slide column 21 is fixed on the inner wall of the inner tube 6, the slide column 21 is slidably connected to one side of the connecting plate 24 outside, the sampled soil is discharged from the second sampling hole 10 respectively, and the rubber scraper 23 cleans the inner wall of the inner tube 6, so as to avoid the sampled soil remaining in the inner wall of the inner tube 6.

[0036] The outer tube 1 and the inner tube 6 are provided with threads 9 on the inner wall of one end, the first lengthening tube 8 and the second lengthening tube 11 are provided with screw teeth 7 on the outer side of one end, which are screwed with the threads 9, the second lengthening tube 11 is located inside the first lengthening tube 8, the length of the outer tube 1 is 2500mm, the length of the inner tube 6 is 2600mm, the length of the first lengthening tube 8 and the second lengthening tube 11 is 2000mm, the length of the first sampling hole 3 and the second sampling hole 10 is 300mm, the width of the first sampling hole 3 and the second sampling hole 10 is 10mm, the diameter of the outer tube 1 and the first lengthening tube 8 is 40mm, the diameter of the inner tube 6 and the second lengthening tube 11 is 32mm, the screw teeth 7 of the first lengthening tube 8 and the second lengthening tube 11 are screwed with the threads 9 of the outer tube 1 and the inner tube 6 respectively, which increases the length of the outer tube 1 and the inner tube 6, so that the sampling device can sample deeper soil.

[0037] Working principle: when the in-situ chemical oxidation soft flow soil treatment is needed, the soil is sampled, only need to insert the inner tube 6 inside the limiting ring 12, then make the second sampling hole 10 not coincide with the first sampling hole 3, at this time the angle between the second sampling hole 10 and the first sampling hole 3 is 180 degrees, make the first sampling hole 3 and the second sampling hole 10 in the closed state, under the action of the guide cone 4 at the bottom of the outer tube 1, the outer tube 1 can be inserted smoothly in the soil, when reaching the sampling depth, rotate the inner tube 6 to make the second sampling hole 10 on one side of the first sampling hole 3, make the first sampling hole 3 and the second sampling hole 10 in the hole overlapping state, start sampling, then tighten the pin 5, make the pin 5 inserted in the limiting groove inside, when the pin 5 is inserted in the limiting groove inside, the pin 5 serves as the fixed relative position between the inner tube 6 and the outer tube 1, and observes whether the first sampling hole 3 and the second sampling hole 10 are in the hole overlapping state, at this time the soil enters the inner tube 6 inside through the first sampling hole 3 and the second sampling hole 10, then pull the outer tube 1 upwards, the sampling of the soil can be completed, when reaching the predetermined sampling depth, rotate the inner tube 6 to make the second sampling hole 10 opposite to the first sampling hole 3, so as to ensure the soil sampling at the correct depth, avoid the sampling error caused by the inaccurate depth judgment, tighten the pin 5 to fix the inner tube 6 at a specific position, so that the soil can only enter the inner tube 6 through the preset sampling hole, effectively prevent the mixing of surrounding soil or impurities, ensure the quality and purity of the collected soil sample;

[0038] After the soil is needed to be taken out, the inner tube 6 is taken out from the inside of the outer tube 1, then the hexagonal connecting column 26 is connected with the output end of the electric screwdriver, when the output shaft of the electric screwdriver rotates clockwise, drives the screw rod 22 to rotate, at this time the screw rod 22 is threadedly connected with the nut 25 of the connecting plate 24, makes the connecting plate 24 drive the rubber scraper 23 on the outside to slide on the inner side wall of the inner tube 6, respectively discharges the sampled soil from the second sampling hole 10, at the same time the rubber scraper 23 cleans the inner wall of the inner tube 6, avoids the sampled soil remaining on the inner wall of the inner tube 6, then controls the output shaft of the electric screwdriver to rotate counterclockwise, makes the connecting plate 24 adhere to one side of the inner wall of the inner tube 6, can be used for sampling the soil next time, by connecting the hexagonal connecting column 26 with the electric screwdriver, when the output shaft of the electric screwdriver rotates clockwise, the screw rod 22 drives the connecting plate 24 and the rubber scraper 23 thereon to slide on the inner wall of the inner tube 6, ensures the sampled soil to be discharged completely from the second sampling hole 10, avoids the sampled soil remaining on the wall, reduces the risk of cross contamination.

[0039] When it is necessary to sample the soil at a deeper position, the threads 7 of the first extension tube 8 and the second extension tube 11 are respectively screwed with the threads 9 of the outer tube 1 and the inner tube 6, the length of the outer tube 1 and the inner tube 6 is increased, so that the sampling device can sample the deeper soil, the overall length of the sampling device can be significantly increased through the first extension tube 8 and the second extension tube 11, so that it can sample the deeper soil, by simply adding or removing the extension tube, the sampling requirement of different depths can be adapted, without replacing the whole sampling device, the convenience of use is improved.

[0040] Those skilled in the art can understand that the features described in various embodiments and / or claims of the present application can be combined or / and combined, even if such combination or combination is not explicitly described in the present application. In particular, the features described in various embodiments and / or claims of the present application can be combined and / or combined without departing from the spirit and teachings of the present application. All these combinations and / or combinations fall within the scope of the present application.

Claims

1. A sampling device for in-situ chemical oxidation of soft flowing soil, comprising an outer tube (1) for collecting soil during in-situ chemical oxidation of soft flowing soil, characterized in that: A plurality of limiting rings (12) are fixed to the inner wall of the outer tube (1), and the inner side of the limiting ring (12) is seamlessly slidably connected to the inner tube (6); The outer side of the outer tube (1) is provided with three first sampling holes (3), and the outer side of the inner tube (6) is provided with three second sampling holes (10); A guide cone (4) is fixed to one end of the outer tube (1), and a first extension tube (8) and a second extension tube (11) are respectively provided on one side of the outer tube (1) and the inner tube (6). Limiting grooves are respectively provided on the surfaces of the outer tube (1), the inner tube (6), the first extension tube (8) and the second extension tube (11), and a pin (5) is connected to the inner side of the limiting groove. A cleaning component (2) is provided on one side of the inner tube (6), and the cleaning component (2) is used to clean the inner wall of the inner tube (6).

2. The sampling device for in-situ chemical oxidation of soft flowing soil according to claim 1, characterized in that: The cleaning assembly (2) comprises a connecting plate (24), the outer side of which is connected to a rubber scraper (23) slidably connected to the inner wall of the inner tube (6), and one side of the connecting plate (24) is fixedly embedded with a nut (25).

3. The sampling device for in-situ chemical oxidation of soft flowing soil according to claim 2, characterized in that: The inner side of the nut (25) is threadedly connected to a screw rod (22), one end of the screw rod (22) is rotatably connected to the inner wall of the inner tube (6) through a bearing, and one end of the nut (25) is provided with a hexagonal connecting column (26).

4. The sampling device for in-situ chemical oxidation of soft flowing soil according to claim 3, characterized in that: A sliding column (21) is fixed to the inner wall side of the inner tube (6), and the outer side of the sliding column (21) is slidably connected to one side of the connecting plate (24).

5. The sampling device for in-situ chemical oxidation of soft flowing soil according to claim 1, characterized in that: The inner walls of one end of the outer tube (1) and the inner tube (6) are both provided with threads (9), and the outer sides of one end of the first extension tube (8) and the second extension tube (11) are both provided with screw threads (7) threadedly connected to the threads (9).

6. The sampling device for in-situ chemical oxidation of soft flowing soil according to claim 5, characterized in that: The second extension tube (11) is located on the inner side of the first extension tube (8), the length of the outer tube (1) is 2500 mm, the length of the inner tube (6) is 2600 mm, the length of the first extension tube (8) and the second extension tube (11) are both 2000 mm, the length of the first sampling hole (3) and the second sampling hole (10) are 300 mm, the width of the first sampling hole (3) and the second sampling hole (10) is 10 mm, the diameter of the outer tube (1) and the first extension tube (8) is 40 mm, and the diameter of the inner tube (6) and the second extension tube (11) is 32 mm.

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