Portable soil heavy metal sampling device

Abstract

The utility model belongs to the technical field of soil sampling, and particularly relates to a portable soil heavy metal sampling device which comprises a fixed cylinder, a telescopic cylinder is arranged on the fixed cylinder in a sliding and telescopic mode, an elastic connecting structure is arranged between the fixed cylinder and the telescopic cylinder, and a spiral conveying piece is arranged in the telescopic cylinder through a bearing. A sampling drill bit is arranged at the bottom end of the spiral conveying part, a driving part is arranged at the top end of the spiral conveying part, a discharging pipe matched with the spiral conveying part is arranged at the top end of the side wall of the telescopic cylinder, a pedal is arranged on the periphery of the bottom end of the fixed cylinder, a plurality of stabilizing nails are arranged at the bottom end of the pedal, moving wheels are arranged on one side of the fixed cylinder, and a push-pull handle is arranged on the other side of the fixed cylinder. According to the portable sampling device, the accuracy in the whole sampling process can be improved, and meanwhile, the whole portable sampling device is convenient to store, carry and move.

Description

TECHNICAL FIELD

[0001] The utility model belongs to soil sampling technical field, concretely relates to a portable soil heavy metal sampling device. BACKGROUND

[0002] Soil heavy metal sampling is to evaluate and monitor the content and distribution of heavy metals in soil, and to understand the influence of heavy metals on soil quality and ecological environment; it can monitor the pollution of heavy metals in soil, evaluate soil environmental quality, and provide scientific basis for environmental protection and pollution control; it can track the source of heavy metal pollution, such as industrial emission, traffic emission, agricultural activities, etc.; and it can provide information for land use planning to avoid using contaminated soil for agricultural production or residential construction;

[0003] In the prior art, when soil sampling is carried out, a drill bit is usually inserted into the ground to drill, for example, a handheld soil drill is used to drill soil sampling. In this process, the drilled soil is accumulated near the drill bit, and the soil sample is mixed, which affects the sampling accuracy of the soil and the detection accuracy of the heavy metal content in the soil.

[0004] In addition, the existing portable soil heavy metal sampling device is mostly manually moved or lifted for transfer or movement. Although the portable soil heavy metal sampling device can be moved flexibly and conveniently compared with large and complex sampling equipment, the device itself has a certain weight, and manual carrying is laborious, which leads to poor overall carrying convenience and movement convenience.

[0005] Secondly, when the existing handheld soil drill is used for drilling soil sampling, the soil drill needs to be manually held, and the stability, use stability and convenience of the drilling position are poor.

[0006] The information disclosed in this background section is intended only to increase an understanding of the general background of the present utility model and should not be construed as recognizing or admitting that this information constitutes prior art that is already known to those of ordinary skill in the art. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing a portable soil heavy metal sampling device to solve the technical problems of poor sampling accuracy and inconvenient movement and carrying, and poor stability of the portable soil heavy metal sampling device in the prior art mentioned in the background.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0009] The utility model provides a portable soil heavy metal sampling device, including fixed cylinder, the telescopic setting of retractable cylinder is slid on the fixed cylinder, and the elastic connecting structure is arranged between the fixed cylinder and retractable cylinder, the inside of retractalbe cylinder is provided with screw conveyor through bearing, the bottom of screw conveyor is provided with sampling drill bit, and the top is provided with driving part, the side wall top of retractalbe cylinder is provided with discharge pipe in cooperation with screw conveyor, the bottom of fixed cylinder is provided with footboard in the periphery, the bottom of footboard is provided with a plurality of stable nails, one side of fixed cylinder is provided with moving wheel, and the other side is provided with pull handle, and the folding fixing structure is arranged between pull handle and fixed cylinder.

[0010] As preferred, the screw conveyor includes a first conveying section and a second conveying section, each of the first conveying section and the second conveying section includes a conveying shaft, the outer side of the conveying shaft is provided with a spiral conveying blade in cooperation with the inner wall of the retractable cylinder, and a detachable connecting structure is arranged between the two groups of conveying shafts. By providing the first conveying section and the second conveying section, the fixed cylinder and the retractable cylinder can be compressed and stored when not in use, thereby reducing the floor space. Here, when the fixed cylinder and the retractable cylinder are compressed and stored, the first conveying section is located inside the retractable cylinder and the fixed cylinder, and the second conveying section extends to the outside of the fixed cylinder. Therefore, the detachable connecting structure facilitates the disassembly of the second conveying section.

[0011] As preferred, the detachable connecting structure includes a connecting head arranged at the bottom of the upper conveying shaft, a connecting groove is arranged at the top of the lower conveying shaft, the connecting head and the connecting groove are limited and clamped with each other, a locking cover is slidably sleeved at the bottom of the upper conveying shaft, and the locking cover is threadedly connected with the top of the lower conveying shaft. When the second conveying section is connected with the first conveying section, the conveying shaft on the second conveying section is limited and clamped between the connecting groove and the connecting head of the upper conveying shaft, then the locking cover is rotated to threadedly connect and lock the locking cover with the lower conveying shaft, thereby stably connecting the upper and lower conveying shafts. The upper conveying shaft is rotatably installed on the retractable cylinder through a bearing.

[0012] As preferred, the folding fixing structure includes a hinge shaft, the bottom of the pull handle is hingedly fixed on the fixed cylinder through the hinge shaft, a fixed seat is arranged on the side of the fixed cylinder away from the hinge shaft, a fixed groove is arranged on the fixed seat in cooperation with the pull handle, and the fixed groove is clamped and fixed with the pull handle. The hinge shaft can realize the rotation adjustment of the pull handle on the fixed cylinder. When not in use, the pull handle is folded and attached to the side wall of the fixed cylinder, thereby reducing the floor space and improving portability. At this time, the pull handle is clamped into the fixed groove, thereby stably attaching the pull handle to the side wall of the fixed cylinder.

[0013] As preferred, one side of the fixed cylinder close to the hinge shaft is provided with a push-pull locking block, a locking groove is matched and formed on the push-pull locking block, and the locking groove is clamped and fixed with the push-pull handle, when the whole push-pull movement is carried out, the push-pull handle is rotated to be clamped into the locking groove, so that the stability of the push-pull handle during the whole push-pull use is realized, and the whole movement is convenient.

[0014] As preferred, the side wall of the telescopic cylinder is provided with scale marks, and observation windows are matched and formed on the fixed cylinder and the telescopic cylinder, the sampling depth during soil sampling can be more accurately observed through the scale surface, the observation window is convenient for observing the conveying condition of the soil in the fixed cylinder and the telescopic cylinder, and the sampling precision is improved.

[0015] As preferred, the elastic connection structure comprises a fixed plate, the fixed plate is arranged at the top end of the fixed cylinder, a telescopic plate is matched and arranged on the telescopic cylinder, and an elastic connecting piece is arranged between the telescopic plate and the fixed plate, the elastic connecting piece is elastically connected between the fixed cylinder and the telescopic cylinder through the fixed plate and the telescopic plate, so that the telescopic cylinder can move up and down on the fixed cylinder, the telescopic cylinder drives the screw conveying piece to move downward, and the soil drilling and sampling operation is carried out, when the fixed cylinder and the telescopic cylinder need to be compressed and stored, the fixed cylinder and the telescopic cylinder are locked and fixed through the binding belt structure, one end of the binding belt structure is fixed with the fixed plate, and the other end is locked and fixed with the telescopic plate through the magic tape, so that the fixed cylinder and the telescopic cylinder are stably stored, the occupied area is reduced, and the portability is improved.

[0016] As preferred, the elastic connecting piece comprises a spring, a limiting rod is arranged on the telescopic plate, the bottom end of the limiting rod is slidably matched with the fixed plate, and the spring is correspondingly arranged on the outside of the limiting rod, the elastic connection between the fixed plate and the telescopic plate can be realized through the cooperation of the spring, the stability of the spring during telescopic movement can be improved through the arrangement of the limiting rod, the anti-deformation and anti-bending effects are improved, and the movement stability of the telescopic cylinder is improved.

[0017] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0018] (1) The utility model discloses a soil sampling device, which comprises a fixed cylinder and a telescopic cylinder, the fixed cylinder is provided with a driving piece, the telescopic cylinder is arranged in the fixed cylinder in a telescopic mode, and a screw conveying piece is arranged in the telescopic cylinder.

[0019] (2) The utility model discloses a foot -board is provided with a plurality of stable nails at the bottom of foot -board on the bottom end periphery of fixed cylinder, when using, the whole is placed vertically on the ground, and the foot -board is pressed with the foot, makes the stable nail enter the ground, can realize the stable fixation of whole, like this can improve the stability in the subsequent sampling process, and simple structure, convenient operation.

[0020] (3) The utility model discloses a movable wheel is set up on one side of fixed cylinder, and push -pull handle is set up on the other side, like this, when realizing the transfer of whole, can be placed horizontally, and the whole is moved under the action of movable wheel through push -pull handle, thereby improve the carrying convenience of whole, reduce the manual handling energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is whole structure schematic of the utility model Figure 1 ;

[0022] Figure 2 It is whole structure schematic of the utility model Figure 2 ;

[0023] Figure 3 It is internal structure cross -sectional view schematic of the utility model;

[0024] Figure 4 It is structure schematic when the utility model horizontal movement;

[0025] Figure 5 It is whole structure explosion schematic of the utility model screw conveyor spare;

[0026] Figure 6 It is local connecting structure cross -sectional view schematic between two group conveying shafts of the utility model.

[0027] MAIN REFERENCE NUMERALS EXPLANATION:

[0028] 1, fixed cylinder;2, telescopic cylinder;3, screw conveyor spare;4, sampling drill bit;5, drive part;6, discharge pipe;7, foot -board;8, stable nail;9, movable wheel;10, push -pull handle;11, first conveying section;12, second conveying section;13, conveying shaft;14, screw conveying blade;15, connecting head;16, connecting groove;17, locking cover;18, hinged axle;19, fixed seat;20, fixed groove;21, push -pull locking block;22, locking groove;23, scale mark;24, observation window;25, fixed plate;26, telescopic plate;27, elastic connecting piece;28, spring;29, limit rod. DETAILED DESCRIPTION

[0029] The technical scheme of the utility model is clearly and completely described below, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] Examples

[0031] Referring to the accompanying Figures 1-6 A portable soil heavy metal sampling device, including fixed cylinder 1, the telescopic cylinder 2 is arranged on the fixed cylinder 1 and can slide, the elastic connecting structure is arranged between the fixed cylinder 1 and the telescopic cylinder 2, the inside of the telescopic cylinder 2 is provided with a screw conveyor 3 through a bearing, the bottom end of the screw conveyor 3 is provided with a sampling drill bit 4, and the top end is provided with a driving part 5, and the side wall top of the telescopic cylinder 2 is provided with a discharge pipe 6 in cooperation with the screw conveyor 3;

[0032] In the process of soil sampling, the sampling drill bit 4 is in contact with the ground, and the driving part 5 is rotated, so that the screw conveyor 3 drives the sampling drill bit 4 to rotate and extend downward, and the sampling operation is carried out. In this process, the telescopic cylinder 2 will move downward on the fixed cylinder 1, so as to form a flow guide structure with the fixed cylinder 1, so that the soil sample drilled by the drill bit can be timely conveyed upward through the screw conveyor 3 and discharged through the discharge pipe 6, so as to realize accurate sampling operation. Wherein, the driving part 5 can be a hand wheel, or a motor matched with a storage battery.

[0033] The bottom end of the foot plate 7 is provided with a plurality of stable nails 8. In use, the whole is placed vertically on the ground, and the foot plate 7 is pressed with the foot, so that the stable nails 8 extend into the ground, so that the whole can be stably fixed. This can improve the stability in the subsequent sampling process, and the structure is simple and convenient to operate.

[0034] The moving wheel 9 is arranged on one side of the fixed cylinder 1, and the pull handle 10 is arranged on the other side. The folding fixing structure is arranged between the pull handle 10 and the fixed cylinder 1. In this way, when the whole is transported and moved, the whole can be placed horizontally, and the whole is moved under the action of the moving wheel 9 by pushing the pull handle 10, so as to improve the carrying convenience of the whole and reduce the labor cost of manual carrying.

[0035] The folding fixing structure comprises a hinge shaft 18, the bottom end of the push-pull handle 10 is hingedly fixed on the fixing cylinder 1 through the hinge shaft 18, the side of the fixing cylinder 1 away from the hinge shaft 18 is provided with a fixing seat 19, the fixing seat 19 is provided with a fixing groove 20 matched with the push-pull handle 10, the push-pull handle 10 is clamped and fixed between the fixing groove 20, the push-pull handle 10 can be rotationally adjusted on the fixing cylinder 1 through the hinge shaft 18, when not in use, the push-pull handle 10 is folded and attached to the side wall of the fixing cylinder 1, the floor area can be reduced, and the portability is improved, at this time, the push-pull handle 10 is clamped into the fixing groove 20, so that the push-pull handle 10 is stably attached to the side wall of the fixing cylinder 1.

[0036] In the embodiment, the side of the fixing cylinder 1 close to the hinge shaft 18 is provided with a push-pull locking block 21, the push-pull locking block 21 is provided with a locking groove 22 matched, the push-pull handle 10 is clamped and fixed between the locking groove 22, when the whole is moved, the push-pull handle 10 is rotated, so that the push-pull handle 10 is clamped into the locking groove 22, so that the stability of the push-pull handle 10 is realized when the whole is used, and the whole is moved conveniently.

[0037] In the embodiment, the spiral conveying part 3 comprises a first conveying section 11 and a second conveying section 12, the first conveying section 11 and the second conveying section 12 both comprise conveying shafts 13, the outer side of the conveying shaft 13 is provided with a spiral conveying blade 14 matched with the inner wall of the telescopic cylinder 2, a detachable connecting structure is arranged between the two groups of conveying shafts 13, through the arrangement of the first conveying section 11 and the second conveying section 12, the fixing cylinder 1 and the telescopic cylinder 2 can be compressed and stored when not in use, so that the floor area is reduced, here, when the fixing cylinder 1 and the telescopic cylinder 2 are compressed and stored, the first conveying section 11 is located inside the telescopic cylinder 2 and the fixing cylinder 1, and the second conveying section 12 extends to the outside of the fixing cylinder 1, therefore, through the arrangement of the detachable connecting structure, the second conveying section 12 is convenient to detach.

[0038] The detachable connecting structure comprises a connecting head 15, the connecting head 15 is arranged at the bottom end of the upper conveying shaft 13, the top end of the lower conveying shaft 13 is provided with a connecting groove 16 matched, the connecting head 15 and the connecting groove 16 are limited and clamped with each other, the bottom end of the upper conveying shaft 13 is slidably sleeved with a locking cover 17, the locking cover 17 is threadedly connected with the top end of the lower conveying shaft 13, when the second conveying section 12 is connected with the first conveying section 11, the conveying shaft 13 on the second conveying section 12 is limited and clamped between the connecting groove 16 and the upper connecting head 15, then the locking cover 17 is rotated, so that the locking cover 17 is threadedly connected and locked with the lower conveying shaft 13, so that the stable connection between the upper and lower two groups of conveying shafts 13 is realized, and the upper conveying shaft 13 is rotationally installed on the telescopic cylinder 2 through a bearing.

[0039] In the embodiment, the side wall of the telescopic cylinder 2 is provided with a scale mark 23, and the fixed cylinder 1 and the telescopic cylinder 2 are both provided with an observation window 24, so that the sampling depth during soil sampling can be observed more accurately through the scale surface, and the observation window 24 facilitates observation of the conveying condition of the soil in the fixed cylinder 1 and the telescopic cylinder 2, thereby improving the sampling accuracy.

[0040] In the embodiment, the elastic connection structure comprises a fixed plate 25 arranged at the top end of the fixed cylinder 1, and a telescopic plate 26 arranged on the telescopic cylinder 2 in a matched manner, and an elastic connecting piece 27 arranged between the fixed plate 25 and the telescopic plate 26, so that the elastic connecting piece 27 is elastically connected between the fixed cylinder 1 and the telescopic cylinder 2 through the fixed plate 25 and the telescopic plate 26, thereby enabling the telescopic cylinder 2 to move up and down on the fixed cylinder 1, so as to facilitate control of the downward movement of the telescopic cylinder 2 driven by the screw conveying piece 3, and the soil drilling and sampling operation, and when it is necessary to compress and store the fixed cylinder 1 and the telescopic cylinder 2, the fixed cylinder 1 and the telescopic cylinder 2 can be locked and fixed through a binding belt structure, wherein one end of the binding belt structure is fixed to the fixed plate 25, and the other end is locked through a magic tape between the telescopic plate 26, thereby realizing stable storage of the fixed cylinder 1 and the telescopic cylinder 2, reducing the floor area, and improving portability.

[0041] In the embodiment, the elastic connecting piece 27 comprises a spring 28, and a limiting rod 29 arranged on the telescopic plate 26 and slidably connected to the bottom end of the fixed plate 25, and the spring 28 is correspondingly sleeved outside the limiting rod 29, so that the elastic connection between the fixed plate 25 and the telescopic plate 26 can be realized through the cooperation of the spring 28, the stability of the spring 28 during telescoping can be improved through the arrangement of the limiting rod 29, the deformation and bending resistance effect is improved, and the movement of the telescopic cylinder 2 is limited, thereby improving the movement stability of the telescopic cylinder 2.

[0042] In summary, during use, the fixed cylinder 1 and the telescopic cylinder 2 are arranged in a telescopic and matched manner, the screw conveying piece 3 is arranged in the telescopic cylinder 2, during soil sampling, the sampling drill bit 4 is in contact with the ground, and the driving piece 5 is rotated, so that the screw conveying piece 3 drives the sampling drill bit 4 to rotate and extend downward, and the sampling operation is performed; during the process, the telescopic cylinder 2 moves downward on the fixed cylinder 1, thereby forming a flow guide structure together with the fixed cylinder 1, so that the soil sample drilled by the drill bit can be conveyed upward in time through the screw conveying piece 3 and discharged through the discharge pipe 6, thereby realizing accurate sampling operation; wherein the driving piece 5 can be a hand wheel or a motor matched with a storage battery, and the above driving structure is a known technology, which will not be described herein.

[0043] A foot plate 7 is arranged at the bottom end of the fixing cylinder 1, and a plurality of stabilizing nails 8 are arranged at the bottom end of the foot plate 7, in use, the whole is placed vertically on the ground, and the foot plate 7 is pressed by foot, so that the stabilizing nails 8 are inserted into the ground, thereby the stability of the whole in the subsequent sampling process can be improved, and the structure is simple and the operation is convenient; the moving wheels 9 are arranged on one side of the fixing cylinder 1, and the push-pull handle 10 is arranged on the other side, in this way, in the transfer movement of the whole, the whole can be placed horizontally, and the whole is moved under the action of the moving wheels 9 by the push-pull handle 10, thereby the carrying convenience of the whole is improved, and the labor of manual carrying is reduced.

[0044] The foregoing description of specific exemplary embodiments of the present application is intended to be illustrative only and is not intended to limit the application to the precise forms described. Many modifications and variations are possible in light of the above teachings without departing from the spirit or essential characteristics of the present application. The exemplary embodiments are chosen and described in order to explain the principles of the present application and its practical application and to allow others skilled in the art to understand the present application for various exemplary embodiments with various modifications as are suited to the particular use contemplated. The scope of the present application is intended to be defined by the claims and their equivalents.

Claims

1. A portable soil heavy metal sampling device, characterized in that, Include: The fixed cylinder, the telescopic cylinder is arranged on the fixed cylinder, the elastic connecting structure is arranged between the fixed cylinder and the telescopic cylinder, the inside of the telescopic cylinder is provided with a screw conveyor through a bearing; The bottom end of the screw conveyor is provided with a sampling drill bit, and the top end is provided with a driving part, the side wall of the telescopic cylinder is provided with a discharge pipe matched with the screw conveyor, the bottom end of the fixed cylinder is provided with a foot plate, the bottom end of the foot plate is provided with a plurality of stabilizing nails, one side of the fixed cylinder is provided with a moving wheel, and the other side is provided with a pull handle, and the pull handle is provided with a folding fixing structure between the fixed cylinder.

2. The portable soil heavy metal sampling device of claim 1, wherein, The screw conveyor includes a first conveying section and a second conveying section, the first conveying section and the second conveying section each include a conveying shaft, the outer side of the conveying shaft is provided with a spiral conveying blade matched with the inner wall of the telescopic cylinder, and the two groups of conveying shafts are provided with a detachable connecting structure.

3. The portable soil heavy metal sampling device of claim 2, wherein, The detachable connecting structure includes a connecting head, the connecting head is arranged at the bottom end of the upper conveying shaft, the top end of the lower conveying shaft is matched and provided with a connecting groove, the connecting head and the connecting groove are limited and clamped with each other, the bottom end of the upper conveying shaft is slidably sleeved with a locking cover, and the locking cover is threadedly connected with the top end of the lower conveying shaft.

4. The portable soil heavy metal sampling device of claim 1, wherein, The folding fixing structure includes a hinge shaft, the bottom end of the pull handle is hingedly fixed on the fixed cylinder through the hinge shaft, the side of the fixed cylinder away from the hinge shaft is provided with a fixing seat, and the fixing seat is provided with a fixing groove matched with the pull handle.

5. The portable soil heavy metal sampling device of claim 4, wherein, The side of the fixed cylinder close to the hinge shaft is provided with a pull locking block, the pull locking block is provided with a locking groove matched and opened, and the locking groove and the pull handle are clamped and fixed.

6. The portable soil heavy metal sampling device of claim 1, wherein, The side wall of the telescopic cylinder is provided with a scale mark, and the fixed cylinder and the telescopic cylinder are both provided with an observation window.

7. The portable soil heavy metal sampling device of claim 1, wherein, The elastic connecting structure includes a fixed plate, the fixed plate is arranged at the top end of the fixed cylinder, the telescopic plate is arranged on the telescopic cylinder, and the elastic connecting member is arranged between the telescopic plate and the fixed plate.

8. The portable soil heavy metal sampling device of claim 7, wherein, The elastic connecting member includes a spring (28), the telescopic plate is provided with a limiting rod (29), the bottom end of the limiting rod (29) is slidably matched with the fixed plate, and the spring (28) is correspondingly sleeved on the outer side of the limiting rod (29).

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