Wetland soil multi-layer collecting device

Abstract

The utility model belongs to the technical field of sampling equipment, and provides a wetland soil multi-layer collecting device which comprises an outer cylinder body, the top and the bottom of the outer cylinder body are respectively provided with an opening, and a soil sampling cylinder body is arranged on the inner side of the outer cylinder body; the soil body obtaining assembly comprises a rotating support mechanism arranged at the top of the outer barrel, a connecting rod is vertically arranged on the rotating support mechanism in a sliding mode, and the bottom of the connecting rod is fixedly connected with the top of the soil taking barrel; the soil body cutting part comprises two sets of cutting knives and two sets of containing grooves formed in the bottom of the inner side of the outer cylinder body, one ends of the two sets of cutting knives are horizontally and rotationally connected into the containing grooves, the soil taking cylinder body is located above the cutting knives, the cutting knives are used for cutting off soil on the inner side of the outer cylinder body, and rotation driving parts are arranged between the cutting knives and the outer cylinder body. According to the utility model, wetland soil with different depths can be sampled separately, the sampling depth of each time is controllable, and the sampling precision is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of sampling equipment, and in particular relates to a multi-level sampling device for wetland soil. Background Art

[0002] The water content in wetland soil is high. The soil in some wetlands is muddy and highly fluid. When drilling and sampling wetland soil, soil moisture at different depths often mix with each other, resulting in inaccurate detection of various components in the soil.

[0003] The patent with publication number CN210571452U discloses a multi-level collection device for wetland soil. When the device is in use, the drill bit is vertically inserted into the soil, and the motor drives the drill bit to rotate, exerting downward pressure on the positioning frame, and the drill bit and the protective cylinder enter the soil downward. When the depth of the drill bit in the soil reaches the sampling requirement, the power mechanism of a sampling tube is used to suck the mud at the bottom of the sampling tube into the sampling tube to complete the sampling of one depth. When the drill bit continues to descend to the second sampling depth, the second sampling tube is used for the second sampling, and so on, until the sampling is completed. Although this technical solution can perform sampling at different depths by gradually increasing the sampling depth, the water in the lower soil layer will be sucked away when collecting soil through negative pressure, and the depth of the soil sample absorbed each time is difficult to control, resulting in low accuracy of the sampling process, which is not conducive to subsequent detection and research. Utility Model Content

[0004] The utility model aims to provide a wetland soil multi-level collection device to solve the above problems and achieve the purpose of separately sampling wetland soil at different depths, with controllable sampling depth each time and high sampling accuracy.

[0005] To achieve the above purpose, the utility model provides the following solution: a multi-level collection device for wetland soil, comprising:

[0006] An outer cylinder, the top and bottom of which are respectively opened, and an earth-collecting cylinder is arranged inside the outer cylinder;

[0007] A soil acquisition assembly, the soil acquisition assembly comprising a rotating bracket mechanism arranged on the top of the outer cylinder, a connecting rod being vertically slidably arranged on the rotating bracket mechanism, and a bottom of the connecting rod being fixedly connected to the top of the soil acquisition cylinder;

[0008] A soil cutting piece, the soil cutting piece includes two groups of cutting knives and two groups of receiving grooves opened at the bottom inner side of the outer cylinder body, one end of the two groups of cutting knives are respectively connected in the receiving grooves for horizontal rotation, the soil collecting cylinder body is located above the cutting knives, the cutting knives are used to cut off the soil inside the outer cylinder body, and a rotating driving member is arranged between the cutting knives and the outer cylinder body.

[0009] Preferably, the rotating bracket mechanism includes a rotating rod vertically rotatably connected to the top of the outer cylinder, the top of the rotating rod is fixedly connected to a top frame, the connecting rod is vertically slidably connected to the top frame, and a plurality of rotating locking members are also provided between the top frame and the outer cylinder.

[0010] Preferably, the rotating locking member includes a limit rod fixedly connected to the bottom of the top frame, the bottom of the limit rod is fitted with the top of the outer cylinder, a plug-in rod is slidably connected inside the limit rod, the top of the plug-in rod passes through the top frame and is fixedly connected with a lifting button, an intermediate cavity is defined in the limit rod, a retaining ring is fixedly sleeved on the side wall of the limit rod, the retaining ring is located in the intermediate cavity, and a spring is abutted between the retaining ring and the top of the intermediate cavity, a slot is defined at the top of the outer cylinder, and an end of the plug-in rod away from the lifting button is arranged corresponding to the slot.

[0011] Preferably, the rotating drive member includes a rotating rod rotatably connected to the outer cylinder, the bottom end of the rotating rod is fixedly connected to the cutting knife, the rotating rod is used to drive the cutting knife to rotate in the accommodating groove, and the top of the rotating rod passes through the top of the outer cylinder and is fixedly connected with a rotating button.

[0012] Preferably, a scale is provided on the outer side wall of the outer cylinder.

[0013] Preferably, one end of the connecting rod away from the soil collecting cylinder is fixedly connected with a handle.

[0014] Preferably, the bottom of the outer side wall of the outer cylinder is provided with a chamfered surface.

[0015] Compared with the prior art, the utility model has the following advantages and technical effects: the main function of the cylinder is to be inserted into the wetland soil to a certain depth, and to isolate the soil at this depth to the inner side of the outer cylinder; the main function of the soil-taking cylinder is to obtain the soil inside the outer cylinder; the main function of the rotating bracket mechanism is to drive the soil-taking cylinder to the outside of the outer cylinder or to be on the same axis as the outer cylinder; the main function of the cutter is to cut off the soil below the soil-taking cylinder from the soil inside the soil-taking cylinder. On the whole, the utility model can sample wetland soil at different depths separately, and the depth of each sampling is controllable. While the sampling accuracy is high, it can prevent the inaccurate detection results caused by the mixing of water in the soil at different depths, and is suitable for wetland soil sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model 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 of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the collection device of the utility model;

[0018] Figure 2 It is a schematic diagram of the soil taking cylinder of the utility model being taken out from the outer cylinder;

[0019] Figure 3 It is a cross-sectional view of the rotary locking member of the utility model;

[0020] Figure 4 It is a schematic diagram of the soil body cutting piece of the utility model;

[0021] Figure 5 It is a schematic diagram of the cutting tool trajectory of the utility model;

[0022] Among them, 1. outer cylinder; 2. rotating rod; 3. limiting rod; 4. top frame; 5. connecting rod; 6. handle; 7. lifting button; 8. rotating button; 9. slot; 10. soil excavation cylinder; 11. rotating rod; 12. cutting knife; 13. plug-in rod; 14. spring; 15. retaining ring; 16. receiving groove; 17. beveled surface; 18. middle cavity; 19. scale. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Reference Figure 1-Figure 5 The utility model provides a wetland soil multi-level collection device, comprising:

[0026] An outer cylinder 1, the top and bottom of the outer cylinder 1 are respectively opened, and an earth-collecting cylinder 10 is arranged inside the outer cylinder 1;

[0027] The soil acquisition assembly includes a rotating bracket mechanism arranged on the top of the outer cylinder 1, a connecting rod 5 is vertically slidably arranged on the rotating bracket mechanism, and the bottom of the connecting rod 5 is fixedly connected to the top of the soil acquisition cylinder 10;

[0028] The soil cutting piece includes two groups of cutting knives 12 and two groups of receiving grooves 16 opened at the bottom of the inner side of the outer cylinder 1. One end of the two groups of cutting knives 12 are respectively connected in the receiving grooves 16 for horizontal rotation. The soil collecting cylinder 10 is located above the cutting knives 12. The cutting knives 12 are used to cut off the soil inside the outer cylinder 1. A rotating driving member is arranged between the cutting knives 12 and the outer cylinder 1.

[0029] The main function of the outer cylinder 1 is to be inserted into the wetland soil to a certain depth, and to isolate the soil at the depth to the inner side of the outer cylinder 1; the main function of the soil-taking cylinder 10 is to obtain the soil in the outer cylinder 1; the main function of the rotating bracket mechanism is to drive the soil-taking cylinder 10 to the outer side of the outer cylinder 1 or to be on the same axis as the outer cylinder 1; the main function of the connecting rod 5 is to drive the soil-taking cylinder 10 to extend downward into the inner side of the outer cylinder 1 or to be raised from the inner side of the outer cylinder 1; the main function of the cutter 12 is to cut the soil below the soil-taking cylinder 10 from the soil inside the soil-taking cylinder 10; the main function of the receiving groove 16 is to be stored inside the outer cylinder 1 when the cutter 12 is not needed to cut the soil; the main function of the rotating driving member is to drive the cutter 12 to rotate. On the whole, the utility model can sample wetland soils of different depths separately, and the depth of each sampling is controllable. The sampling accuracy is high, and the inaccurate detection results caused by the mixing of water in soils of different depths can be prevented, and it is suitable for the sampling of wetland soils.

[0030] According to a further optimized solution, a cavity (not shown in the figure) is opened upward from the bottom of the soil sampling cylinder 10, and the cavity is used to store soil samples.

[0031] A further optimized solution is that the rotating bracket mechanism includes a rotating rod 2 vertically rotatably connected to the top of the outer cylinder 1, the top of the rotating rod 2 is fixedly connected to the top frame 4, the connecting rod 5 is vertically slidably connected to the top frame 4, and a plurality of rotating locking members are also arranged between the top frame 4 and the outer cylinder 1.

[0032] like Figure 1 and Figure 2As shown, the rotating rod 2 can drive the top frame 4 to rotate horizontally on the top of the outer cylinder 1. When the sampling work is carried out, the connecting rod 5 coincides with the axis of the outer cylinder 1 when the rotating rod 2 drives the top frame 4, so that when the connecting rod 5 is pressed down, the soil cylinder 10 can slide down along the inner wall of the outer cylinder; when the soil in the soil cylinder 10 needs to be taken out after sampling, the connecting rod 5 can be pulled up to make the soil cylinder 10 between the outer cylinder 1 and the top frame 4, and then the rotating locking piece is unlocked, so that the top frame 4 drives the soil cylinder 10 to rotate around the rotating rod 2, so that the soil cylinder 10 is outside the outer cylinder 1, which is convenient for soil to be taken out of the soil cylinder 10.

[0033] A further optimized solution is provided, in which the rotating locking member includes a limit rod 3 fixedly connected to the bottom of the top frame 4, the bottom of the limit rod 3 fits with the top of the outer cylinder 1, a plug-in rod 13 is slidably connected inside the limit rod 3, the top of the plug-in rod 13 passes through the top frame 4 and is fixedly connected with a lifting button 7, an intermediate cavity 18 is provided inside the limit rod 3, a retaining ring 15 is fixedly sleeved on the side wall of the limit rod 3, the retaining ring 15 is located in the intermediate cavity 18, and a spring 14 is abutted between the retaining ring 15 and the top of the intermediate cavity 18, a slot 9 is provided at the top of the outer cylinder 1, and the end of the plug-in rod 13 away from the lifting button 7 is arranged corresponding to the slot 9.

[0034] like Figure 1-Figure 3 As shown, two groups of plug-in rods 13 are provided on the top frame 4, and two groups of slots 9 are provided on the outer cylinder 1. When taking soil samples, the top frame 4 needs to be rotated until the two groups of plug-in rods 13 correspond to the two groups of slots 9 respectively. At this time, the spring 14 will press down the retaining ring 15 under its own elastic force, so that the plug-in rod 13 moves down and is inserted into the slot 9. At this time, the top frame 4 will no longer rotate. When the sampling is completed and the soil in the soil extraction cylinder 10 needs to be taken out, the soil extraction cylinder 10 can be first lifted out of the outer cylinder 1 through the connecting rod 5, and then the lifting button 7 is pulled upward, so that the lifting button 7 drives the plug-in rod 13 to move up, so that the bottom of the plug-in rod 13 is disengaged from the slot 9. At this time, the top frame 4 can be rotated around the rotating rod 2 by rotating the top frame 4, which is convenient for the subsequent removal of soil from the soil extraction cylinder 10.

[0035] A further optimized solution is that the rotating drive member includes a rotating rod 11 rotatably connected to the outer cylinder 1, the bottom end of the rotating rod 11 is fixedly connected to the cutting knife 12, the rotating rod 11 is used to drive the cutting knife 12 to rotate in the accommodating groove 16, and the top of the rotating rod 11 passes through the top of the outer cylinder 1 and is fixedly connected to a rotating button 8.

[0036] like Figure 4 and Figure 5As shown, during the sampling process, after the soil sampling cylinder 10 is inserted into the soil in the outer cylinder 1, in order to ensure that the soil sample in the soil sampling cylinder 10 moves up smoothly with the soil sampling cylinder 10, before the soil sampling cylinder 10 is lifted up, the two sets of rotating buttons 8 are rotated so that the two sets of rotating buttons 8 respectively drive the two sets of cutting knives 12 to rotate from one side of the accommodating groove 16 to the other side through the two sets of rotating rods 11, so as to cut off the soil below the soil sampling cylinder 10. At this time, the soil sampling cylinder 10 is lifted up, and the soil inside it can be lifted together with the soil sampling cylinder 10.

[0037] According to a further optimized solution, a scale 19 is provided on the outer side wall of the outer cylinder 1 .

[0038] like Figure 1 As shown, the scale 19 can be used to control the depth of the outer cylinder 1 inserted into the soil each time.

[0039] According to a further optimized solution, a handle 6 is fixedly connected to one end of the connecting rod 5 away from the soil collecting cylinder 10 .

[0040] The handle 6 can facilitate the operator to control the rise, fall or rotation of the connecting rod 5. At the same time, when the soil-extracting cylinder 10 descends, the handle 6 and the top frame 4 are fitted together to control the descending height of the soil-extracting cylinder 10 in the outer cylinder 1, ensuring that the soil-extracting cylinder 10 is always located above the cutting knife 12.

[0041] According to a further optimized solution, a chamfered surface 17 is provided at the bottom of the outer side wall of the outer cylinder 1 .

[0042] like Figure 1 As shown, the chamfered surface 17 can reduce the resistance of the outer cylinder 1 when inserted into the soil.

[0043] The working process of this embodiment is as follows: before sampling begins, the soil sampling cylinder 10 is in a coaxial position with the outer cylinder 1, and the top frame 4 is in a locked state. The operator holds the outer cylinder 1 and vertically inserts the outer cylinder 1 into the wetland area to be sampled, and then inserts the outer cylinder 1 downward in groups to a certain depth, and each insertion depth does not exceed the height of the soil sampling cylinder 10.

[0044] After being inserted to a certain depth, the soil-taking cylinder 10 is pressed down by the handle 6 so that the soil-taking cylinder 10 is inserted into the soil inside the outer cylinder 1. Then, the rotating knob 8 is rotated to cut off the soil below the soil-taking cylinder 10, and the handle 6 is pulled up again so that the soil-taking cylinder 10 is between the top frame 4 and the top of the outer cylinder 1, and the lifting knob 7 is pulled up to rotate the top frame 4 so that the soil-taking cylinder 10 is outside the outer cylinder 1, and the soil therein is taken out to complete the soil sampling work at the first height; then, the top frame 4 is rotated so that the top frame 4 is re-locked above the outer cylinder 1, and the outer cylinder 1 is continuously pressed down to a certain depth, and the above steps are repeated to complete the sampling work at the second height; as the outer cylinder 1 is inserted into the soil to a gradually increasing depth, multiple soil sampling works at different depths are completed, and the soil samples taken out each time can be stored separately, which effectively prevents the inaccurate detection results caused by the mixing of moisture in the soil at different depths.

[0045] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A multi-level collection device for wetland soil, It is characterized in that include: An outer cylinder (1), the top and bottom of the outer cylinder (1) are respectively arranged with openings, and a soil collecting cylinder (10) is arranged inside the outer cylinder (1); A soil acquisition assembly, the soil acquisition assembly comprising a rotating support mechanism arranged at the top of the outer cylinder (1), a connecting rod (5) being arranged on the rotating support mechanism for vertical sliding movement, the bottom of the connecting rod (5) being fixedly connected to the top of the soil acquisition cylinder (10); A soil cutting piece, the soil cutting piece comprises two groups of cutting knives (12) and two groups of receiving grooves (16) provided at the bottom of the inner side of the outer cylinder (1), one end of the two groups of cutting knives (12) are respectively connected to the receiving grooves (16) in a horizontally rotatable manner, the soil collecting cylinder (10) is located above the cutting knives (12), the cutting knives (12) are used to cut off the soil inside the outer cylinder (1), and a rotating driving member is provided between the cutting knives (12) and the outer cylinder (1).

2. A wetland soil multi-level collection device according to claim 1, Features: The rotating bracket mechanism comprises a rotating rod (2) vertically rotatably connected to the top of the outer cylinder (1); the top of the rotating rod (2) is fixedly connected to a top frame (4); the connecting rod (5) is vertically slidably connected to the top frame (4); and a plurality of rotating locking members are further provided between the top frame (4) and the outer cylinder (1).

3. A wetland soil multi-level collection device according to claim 2, Features: The rotation locking member comprises a limit rod (3) fixedly connected to the bottom of the top frame (4), the bottom of the limit rod (3) is in contact with the top of the outer cylinder (1), a plug rod (13) is slidably connected inside the limit rod (3), the top of the plug rod (13) passes through the top frame (4) and is fixedly connected to a pull button (7), an intermediate cavity (18) is provided inside the limit rod (3), a retaining ring (15) is fixedly sleeved on the side wall of the limit rod (3), the retaining ring (15) is located in the intermediate cavity (18), and a spring (14) is abutted between the retaining ring (15) and the top of the intermediate cavity (18), a slot (9) is provided at the top of the outer cylinder (1), and one end of the plug rod (13) away from the pull button (7) is arranged corresponding to the slot (9).

4. A wetland soil multi-level collection device according to claim 1, Features: The rotating driving member comprises a rotating rod (11) rotatably connected to the outer cylinder (1), the bottom end of the rotating rod (11) being fixedly connected to the cutting knife (12), the rotating rod (11) being used to drive the cutting knife (12) to rotate in the accommodating groove (16), and the top of the rotating rod (11) passing through the top of the outer cylinder (1) and being fixedly connected to a rotating button (8).

5. A wetland soil multi-level collection device according to claim 1, Features: The outer wall of the outer cylinder (1) is provided with a scale (19).

6. A wetland soil multi-level collection device according to claim 1, Features: One end of the connecting rod (5) away from the soil collecting cylinder (10) is fixedly connected to a handle (6).

7. A wetland soil multi-level collection device according to claim 1, Features: The bottom of the outer side wall of the outer cylinder (1) is provided with a chamfered surface (17).

Images