Soil sample collecting device for geochemical survey of land quality

Abstract

The utility model belongs to the technical field of soil collection, and discloses a soil sample collection device for geochemical survey of land quality, which comprises a sampling rod, the top of the sampling rod is fixedly connected with a connecting rod, the bottom of the sampling rod is provided with a sampling cavity, and the inside of the sampling cavity is movably sleeved with a limiting sample return plug. The sampling rod is sleeved with a force application positioning frame located on the outer side of the limiting sample withdrawing plug, the outer portion of the connecting rod is movably connected with an adjusting assembly, and a linkage sliding block is clamped in the connecting rod in a sliding mode. Due to the arrangement of the adjusting assembly, under the cooperation of the linkage sliding block, the second linkage rod and the first linkage rod, the limiting sample returning plug and the force application positioning frame can be always located in the same horizontal plane, and therefore when the force application positioning frame is treaded to enable the sampling rod to be gradually inserted into the ground, the sampling rod can be accurately positioned under the limitation of the limiting sample returning plug. It is ensured that the soil sample of the preset depth underground can be accurately collected.

Description

Technical Field

[0001] This utility model belongs to the field of soil sampling technology, specifically a soil sample collection device for land quality geochemical survey. Background Technology

[0002] Soil sample collection and analysis of its physicochemical properties are widely used in scientific research and industrial and agricultural production practices in multiple disciplines such as environmental science, geography, ecology, and agronomy. Therefore, how to efficiently and accurately complete soil sample collection has become a problem worthy of attention.

[0003] When collecting soil samples, it is usually necessary to collect soil samples from different depths underground. However, existing collection equipment does not have the ability to precisely control the depth at which the equipment is inserted into the ground, resulting in reduced sampling accuracy. Therefore, it is necessary to develop a soil sample collection device for land quality geochemical surveys to address the shortcomings of existing technologies. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a soil sample collection device for land quality geochemical surveys, which has the advantage of high sampling accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a soil sample collection device for land quality geochemical survey, comprising a sampling rod, a connecting rod fixedly connected to the top of the sampling rod, a sampling cavity opened at the bottom of the sampling rod, a limiting retraction plug movably sleeved inside the sampling cavity, a force-applying positioning frame sleeved outside the sampling rod located outside the limiting retraction plug, an adjusting component movably connected to the outside of the connecting rod, a linkage slider slidably engaged inside the connecting rod, the adjusting component rotatably connected to the outside of the linkage slider, a second linkage rod fixedly connected to the bottom of the linkage slider, the lower end of the second linkage rod penetrating the connecting rod and extending into the sampling cavity and fixedly connected to the top of the limiting retraction plug, and two first linkage rods fixedly connected to the bottom of the adjusting component, the lower ends of the first linkage rods fixedly connected to the top of the force-applying positioning frame.

[0006] Preferably, the outer surface of the connecting rod is provided with two symmetrical linkage grooves, and the linkage slider is slidably engaged with the connecting rod and the interior of the linkage grooves.

[0007] Preferably, the outer surface of the connecting rod is integrally formed with linkage limiting teeth, and the adjusting component is movably connected to the outside of the connecting rod through the linkage limiting teeth.

[0008] Preferably, the adjustment assembly includes an adjustment ring movably sleeved on the outside of the sampling rod and its surface linkage limiting teeth, and the first linkage rod is fixedly connected to the bottom of the adjustment ring.

[0009] Preferably, the adjusting ring has two sets of symmetrical linkage positioning teeth fixedly connected inside, and the linkage positioning teeth and linkage limiting teeth mesh with each other;

[0010] The distance between two adjacent linkage limiting teeth is adapted to the height of the linkage positioning teeth, and the distance between two adjacent linkage positioning teeth is adapted to the height of the linkage limiting teeth; the arc length of the linkage positioning teeth is smaller than the arc length of the linkage slide groove.

[0011] Preferably, a linkage ring is rotatably sleeved inside the adjusting ring, and the linkage ring is fixedly sleeved on the outer surface of the linkage slider.

[0012] Preferably, a handle is fixedly connected to the top of the connecting rod, and a drag-reducing sliding surface is provided at the bottom of the sampling rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. Due to the setting of the adjustment component, the present invention, with the cooperation of the linkage slider, the second linkage rod and the first linkage rod, can keep the limiting sample retraction plug and the force application positioning frame in the same horizontal plane. Thus, when the sampling rod is gradually inserted into the ground by stepping on the force application positioning frame, the soil sample at the predetermined depth can be accurately collected under the restriction of the limiting sample retraction plug.

[0015] 2. Due to the setting of the force application positioning frame, with the cooperation of the first linkage rod and the adjustment component, stepping on the force application positioning frame can drive the connecting rod and the sampling rod to move down, thereby making it easier to insert the sampling rod into the ground to complete the sampling, which helps to reduce the physical exertion during construction.

[0016] 3. Due to the linkage slide groove, this utility model can ensure that the limiting sample ejection plug always moves with the force application positioning frame to be in the same horizontal plane with the cooperation of the linkage slider. At the same time, it can quickly adjust the position of the limiting sample ejection plug in the sampling cavity, thereby adjusting the subsequent sampling depth.

[0017] 4. Due to the setting of the linkage limiting teeth, this utility model allows for rapid movement along the linkage slide groove. After the adjustment of the limiting sample retraction plug is completed, the adjustment component and the connecting rod can remain relatively stationary under the cooperation of the linkage limiting teeth and the linkage positioning teeth, thereby ensuring that the stepping force positioning frame can drive the sampling rod to move down. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a front view of the present invention;

[0020] Figure 3 This is a sectional view of the front of the present invention;

[0021] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0022] Figure 5 for Figure 3 A magnified view of a portion of point B in the middle.

[0023] In the diagram: 1. Sampling rod; 2. Connecting rod; 3. Sampling chamber; 4. Limiting and retracting plug; 5. Force application positioning frame; 6. Adjusting component; 61. Adjusting ring; 62. Linkage positioning teeth; 63. Linkage ring; 7. Linkage slider; 8. First linkage rod; 9. Second linkage rod; 10. Linkage groove; 11. Linkage limiting teeth; 12. Drag-reducing slide surface; 13. Handle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 5As shown, this utility model provides a soil sample collection device for land quality geochemical survey, including a sampling rod 1, a connecting rod 2 fixedly connected to the top of the sampling rod 1, a sampling cavity 3 opened at the bottom of the sampling rod 1, a limiting retraction plug 4 movably sleeved inside the sampling cavity 3, a force-applying positioning frame 5 located outside the limiting retraction plug 4 sleeved on the outside of the sampling rod 1, an adjusting component 6 movably connected to the outside of the connecting rod 2, a linkage slider 7 slidably engaged inside the connecting rod 2, the adjusting component 6 rotatably connected to the outside of the linkage slider 7, a second linkage rod 9 fixedly connected to the bottom of the linkage slider 7, the lower end of the second linkage rod 9 penetrating the connecting rod 2 and extending into the sampling cavity 3 and fixedly connected to the top of the limiting retraction plug 4, and a left linkage rod 9 fixedly connected to the bottom of the adjusting component 6. The two first linkage rods 8 on the right are fixedly connected to the top of the force-applying positioning frame 5 at their lower ends. Due to the setting of the adjustment component 6, with the cooperation of the linkage slider 7, the second linkage rod 9, and the first linkage rod 8, the limiting sample retraction plug 4 and the force-applying positioning frame 5 can always be in the same horizontal plane. Thus, when the sampling rod 1 is gradually inserted into the ground by stepping on the force-applying positioning frame 5, the soil sample at the predetermined depth can be accurately collected under the restriction of the limiting sample retraction plug 4. Due to the setting of the force-applying positioning frame 5, with the cooperation of the first linkage rod 8 and the adjustment component 6, stepping on the force-applying positioning frame 5 can drive the connecting rod 2 and the sampling rod 1 to move down, which makes it easier to insert the sampling rod 1 into the ground to complete the sampling and helps to reduce the physical exertion during construction.

[0026] like Figure 1 and Figure 4 As shown, the outer surface of the connecting rod 2 is provided with two symmetrical linkage grooves 10. The linkage slider 7 is slidably engaged with the connecting rod 2 and the interior of the linkage groove 10. Due to the setting of the linkage groove 10, the limiting sample ejection plug 4 can always move with the force application positioning frame 5 to be in the same horizontal plane with the cooperation of the linkage slider 7. At the same time, it can achieve the effect of quickly adjusting the position of the limiting sample ejection plug 4 in the sampling cavity 3, thereby achieving the effect of adjusting the subsequent sampling depth.

[0027] like Figure 3 and Figure 4 As shown, the outer surface of the connecting rod 2 is integrally formed with a linkage limiting tooth 11, and the adjusting component 6 is movably connected to the outside of the connecting rod 2 through the linkage limiting tooth 11.

[0028] like Figure 3 and Figure 4 As shown, the adjustment assembly 6 includes an adjustment ring 61 that is movably sleeved on the outside of the sampling rod 1 and its surface linkage limiting teeth 11, and the first linkage rod 8 is fixedly connected to the bottom of the adjustment ring 61.

[0029] like Figure 4As shown, the adjusting ring 61 has two sets of symmetrical linkage positioning teeth 62 fixedly connected inside, and the linkage positioning teeth 62 and the linkage limiting teeth 11 mesh with each other.

[0030] The distance between two adjacent linkage limiting teeth 11 is adapted to the height of the linkage positioning teeth 62, and the distance between two adjacent linkage positioning teeth 62 is adapted to the height of the linkage limiting teeth 11; the arc length of the linkage positioning teeth 62 is smaller than the arc length of the linkage slide groove 10; due to the setting of the linkage limiting teeth 11, after the rapid movement along the linkage slide groove 10 to complete the adjustment of the limiting sample retraction plug 4, the adjustment component 6 and the connecting rod 2 can remain relatively stationary under the cooperation of the linkage limiting teeth 11 and the linkage positioning teeth 62, thereby ensuring that the stepping force positioning frame 5 can drive the sampling rod 1 to move down.

[0031] like Figure 4 As shown, the inner rotating part of the adjusting ring 61 is fitted with a linkage ring 63, which is fixedly fitted onto the outer surface of the linkage slider 7. Due to the setting of the linkage ring 63, it can be ensured that when the adjusting ring 61 moves up and down, it can drive the limiting sample plug 4 to move up and down through the linkage slider 7 and the second linkage rod 9. At the same time, the setting of the linkage slider 7 will not affect the rotation of the adjusting ring 61.

[0032] like Figure 1 As shown, a handle 13 is fixedly connected to the top of the connecting rod 2, and a drag-reducing sliding surface 12 is provided at the bottom of the sampling rod 1.

[0033] Working principle and usage process of this utility model:

[0034] According to the required sampling depth, adjust the position of the limiting retraction plug 4 in the sampling chamber 3. Specifically, rotate the adjusting ring 61 so that the two sets of symmetrical linkage positioning teeth 62 inside it disengage from the linkage limiting teeth 11 and rotate into the two linkage sliding grooves 10. Then, quickly move the adjusting ring 61 up and down to move it up and down along the outside of the connecting rod 2. The linkage slider 7 and the second linkage rod 9 drive the limiting retraction plug 4 to move up and down to the required position. At the same time, the first linkage rod 8 drives the force application positioning frame 5 to move to the corresponding position. Then, rotate the adjusting ring 61 again so that the linkage positioning teeth 62 inside it can engage with the linkage limiting teeth 11 again.

[0035] Then, after gripping the handle 13 and pre-inserting the sampling rod 1 into the ground, step on the force-applying positioning frame 5 to promote the sampling rod 1 to be further inserted into the ground until the force-applying positioning frame 5 is in contact with the ground. At this time, the limiting retraction plug 4 is in contact with the top of the sampled soil in the sampling chamber 3. After pulling out the sampling rod 1, rotate the adjusting ring 61 to make the linkage positioning tooth 62 disengage from the linkage limiting tooth 11. At this time, stepping on the force-applying positioning frame 5 can drive the limiting retraction plug 4 to move towards the direction close to the drag-reducing sliding surface 12 through the first linkage rod 8, adjusting ring 61, linkage ring 63, linkage slider 7 and second linkage rod 9, thereby pushing out the sampled soil in the sampling chamber 3.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A soil sample collection device for land quality geochemical survey, comprising a sampling rod (1), characterized in that: The top of the sampling rod (1) is fixedly connected to a connecting rod (2), and the bottom of the sampling rod (1) is provided with a sampling cavity (3). The sampling cavity (3) is movably fitted with a limiting retraction plug (4). The outside of the sampling rod (1) is fitted with a force positioning frame (5) located outside the limiting retraction plug (4). The outside of the connecting rod (2) is movably connected to an adjustment component (6). The inside of the connecting rod (2) is slidably engaged with a linkage slider (7). The adjustment component (6) is rotatably connected to the outside of the linkage slider (7). The bottom of the linkage slider (7) is fixedly connected to a second linkage rod (9). The lower end of the second linkage rod (9) passes through the connecting rod (2) and extends into the sampling cavity (3) and is fixedly connected to the top of the limiting retraction plug (4). The bottom of the adjustment component (6) is fixedly connected to two first linkage rods (8) on the left and right. The lower end of the first linkage rod (8) is fixedly connected to the top of the force positioning frame (5).

2. The soil sample collection device for land quality geochemical survey according to claim 1, characterized in that: The outer surface of the connecting rod (2) is provided with two symmetrical linkage grooves (10), and the linkage slider (7) is slidably engaged with the connecting rod (2) and the linkage grooves (10).

3. The soil sample collection device for land quality geochemical survey according to claim 2, characterized in that: The outer surface of the connecting rod (2) is integrally formed with linkage limiting teeth (11), and the adjusting component (6) is movably connected to the outside of the connecting rod (2) through the linkage limiting teeth (11).

4. The soil sample collection device for land quality geochemical survey according to claim 3, characterized in that: The adjustment assembly (6) includes an adjustment ring (61) that is movably sleeved on the outside of the sampling rod (1) and its surface linkage limiting teeth (11), and the first linkage rod (8) is fixedly connected to the bottom of the adjustment ring (61).

5. The soil sample collection device for land quality geochemical survey according to claim 4, characterized in that: The adjusting ring (61) is internally fixedly connected with two sets of symmetrical linkage positioning teeth (62), and the linkage positioning teeth (62) and the linkage limiting teeth (11) mesh with each other; The distance between two adjacent linkage limiting teeth (11) is adapted to the height of the linkage positioning teeth (62), and the distance between two adjacent linkage positioning teeth (62) is adapted to the height of the linkage limiting teeth (11); the arc length of the linkage positioning teeth (62) is smaller than the arc length of the linkage groove (10).

6. The soil sample collection device for land quality geochemical survey according to claim 4, characterized in that: The adjusting ring (61) is rotatably sleeved with a linkage ring (63), which is fixedly sleeved on the outer surface of the linkage slider (7).

7. The soil sample collection device for land quality geochemical survey according to claim 1, characterized in that: A handle (13) is fixedly connected to the top of the connecting rod (2), and a drag-reducing sliding surface (12) is provided at the bottom of the sampling rod (1).

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