Surface soil sampler

Abstract

The surface soil sampler comprises a fixing assembly, the fixing assembly comprises a mounting shell, a mounting column is integrally formed in the center of the inner bottom surface of the mounting shell, a power assembly is fixedly mounted on the top surface of the mounting column, a rotating assembly is coaxially and rotatably connected to the outer wall of the mounting column, and the rotating assembly comprises a rotating bin; a plurality of vertically-through storage bins are formed in the top face of the rotating bin at equal intervals, soil sampling assemblies are movably installed in the storage bins, an installation ring is fixedly installed on the top face of the installation shell through bolts, and a handheld handle convenient for people to hold is fixedly installed on the top face of the installation ring. According to the soil sampling device, soil at multiple positions can be sampled through the soil sampling assemblies, the structure is compact, and mounting and dismounting are convenient.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, specifically to a surface soil sampler. Background Technology

[0002] Topsoil is an important carrier of pollutants. Regular sampling and analysis of it helps to understand the distribution, migration and accumulation of pollutants, assess ecological risks, and provide data support for pollution prevention and control.

[0003] A search revealed that prior art publication number CN217560990U discloses a surface soil sampling device for environmental testing, comprising a surface soil sampler housing, a positioning frame on the outside of the housing, and a sampling rod inside the housing. This invention consists of three parts: the positioning frame, the surface soil sampler housing, and the sampling rod. The positioning frame restricts the insertion position of the conical drill bit into the soil, facilitating operation and ensuring the drill bit is positioned at the optimal sampling point on the surface. Four opening and closing plates are located at the lower end of the conical drill bit, sealing the inserted portion to prevent contact between the sampling rod and the surface soil. When the conical drill bit is inserted into the soil surface, the sampling rod is pushed downwards, and the sample is collected through the internal sample storage slot, ensuring soil sample purity and improving testing accuracy.

[0004] Therefore, based on the above search and combined with existing technologies, the existing surface soil sampling device for environmental monitoring can only collect soil samples from one location. In actual soil sampling work, it is often necessary to sample from multiple locations. Since the device can only collect soil samples from one location, it needs to be disassembled and cleaned before the next sampling work, which is extremely inconvenient. Utility Model Content

[0005] The purpose of this invention is to provide a surface soil sampler to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The surface soil sampler includes a fixing component, which includes a mounting shell. An integrally formed mounting column is located at the center of the bottom surface of the mounting shell. A power component is fixedly mounted on the top surface of the mounting column. A rotating component is coaxially rotatably connected to the outer wall of the mounting column. The rotating component includes a rotating chamber. Several vertically connected storage chambers are equidistantly opened on the top surface of the rotating chamber. Soil sampling components are movably installed in each of the several storage chambers. A mounting ring is fixedly mounted on the top surface of the mounting shell by bolts. A hand handle for easy gripping is fixedly mounted on the top surface of the mounting ring.

[0008] Furthermore, the power assembly includes a mounting plate, which is coaxially fixedly mounted on the top of the mounting column. A connecting arm is fixedly mounted on the top of the mounting plate, and a drive gear is actively rotatably connected to the end of the connecting arm. The shaft of the drive gear passes through the connecting arm and is coaxially connected to a stepper motor.

[0009] Furthermore, several storage compartments are rotatably connected to the top of internal threaded sleeves, and gear rings are coaxially fixedly installed on the outer walls of several internal threaded sleeves, with the driving gear meshing with one of the gear rings for transmission.

[0010] Furthermore, the outer wall of the rotating chamber is provided with an installation groove, in which a positioning pin is slidably installed. A spring is sandwiched between the bottom surface of the positioning pin and the bottom surface of the installation groove. The outer wall of the mounting housing is provided with positioning grooves at equal intervals around its circumference, and the size of the positioning grooves is adapted to the positioning pin.

[0011] Furthermore, the soil sampling assembly includes a screw, which is threadedly connected to an internally threaded sleeve, and a soil sampling chamber is coaxially fixedly installed at the bottom end of the screw.

[0012] Furthermore, two soil inlets are symmetrically opened on the outer wall of the soil intake chamber. A set of slide rails is integrally formed at the upper and lower ends of each soil inlet. A sliding baffle is slidably connected between each set of slide rails. A soil drilling cone head is integrally formed on the bottom surface of the soil intake chamber.

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

[0014] 1. In use, this utility model uses a stepper motor to drive the drive gear to rotate, the drive gear drives the internal threaded sleeve to rotate through the gear ring, the internal threaded sleeve rotates to drive the screw to rotate, and the screw drives the soil sampling chamber to rotate synchronously. Through the cooperation of the soil sampling chamber and the sliding baffle, soil can be sampled at a specified depth. At the same time, by installing several soil sampling components, multiple soil samples can be taken separately. The structure is compact and easy to install and disassemble. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of the overall structure of this utility model;

[0017] Figure 3 This is an exploded view of the fixing component structure of this utility model;

[0018] Figure 4 This is an exploded view of the rotating component structure of this utility model;

[0019] Figure 5 This is an exploded view of the soil extraction component structure of this utility model;

[0020] Figure 6This is a diagram showing the overall structure and working state of this utility model.

[0021] In the diagram: 1. Fixed assembly; 11. Mounting housing; 111. Mounting post; 112. Positioning groove; 12. Bushing; 13. Mounting plate; 14. Connecting arm; 15. Drive gear; 16. Stepper motor; 2. Rotating assembly; 21. Rotating chamber; 211. Storage chamber; 212. Mounting groove; 213. Positioning pin; 214. Spring; 22. Internal threaded sleeve; 221. Convex ring; 23. Gear ring; 3. Soil sampling assembly; 31. Screw; 311. Blocking block; 32. Soil sampling chamber; 321. Slide rail; 322. Drilling cone head; 33. Sliding baffle; 4. Mounting ring; 5. Hand grip. Detailed Implementation

[0022] 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.

[0023] Example 1: Please refer to Figures 1-4 The surface soil sampler includes a fixing component 1, which includes a mounting housing 11. Specifically, the top surface of the mounting housing 11 is open, and several discharge ports are equidistantly spaced on the bottom circumference of the mounting housing 11. An integrally formed mounting column 111 is provided at the center of the bottom surface of the mounting housing 11. A power component is fixedly mounted on the top surface of the mounting column 111. A rotating component 2 is coaxially rotatably connected to the outer wall of the mounting column 111. The rotating component 2 includes a rotating chamber 21. Specifically, a bushing 12 is fitted on the outer wall of the mounting column 111, and the rotating chamber 21 is coaxially rotatably mounted on the bushing 12. The outer wall of the rotating chamber 21 has several vertically connected storage chambers 211 equidistantly opened on the top surface. Specifically, the bottom of each storage chamber 211 corresponds to a certain discharge port. Each storage chamber 211 is equipped with a soil-collecting component 3. The top surface of the mounting shell 11 is fixedly installed with a mounting ring 4 by bolts. Specifically, the bottom surface of the mounting ring 4 abuts against the top surface of the rotating chamber 21. The mounting ring 4 has a limiting function for the rotating chamber 21 to prevent it from falling out of the mounting shell 11. A hand grip 5 is fixedly installed on the top surface of the mounting ring 4 for easy holding.

[0024] The power assembly includes a mounting plate 13, which is coaxially fixedly mounted on the top of the mounting column 111. A connecting arm 14 is fixedly mounted on the top of the mounting plate 13. A drive gear 15 is actively rotatably connected to the end of the connecting arm 14. The shaft of the drive gear 15 passes through the connecting arm 14 and is coaxially connected to a stepper motor 16. Specifically, the stepper motor 16 is fixedly mounted on the top surface of the connecting arm 14 by bolts.

[0025] Each of the storage compartments 211 has a rotatably connected internally threaded sleeve 22 at its top. Specifically, each storage compartment 211 has a rotating rail at its top opening. A raised ring 221 is integrally formed at the bottom of the outer wall of the internally threaded sleeve 22. The raised ring 221 is rotatably connected to the rotating rail, which limits the movement of the raised ring 221 and prevents the internally threaded sleeve 22 from falling off. A gear ring 23 is coaxially fixedly installed on the outer wall of each of the internally threaded sleeves 22. Specifically, a groove is formed on the inner wall of the gear ring 23, and a protrusion is integrally formed on the outer wall of the internally threaded sleeve 22. The protrusion matches the size of the groove and limits its movement, preventing the internally threaded sleeve 22 from falling off. The internally threaded sleeve 22 has an internal thread on its inner wall, and the outer wall of the rotating chamber 21 has an installation groove 212. A positioning pin 213 is slidably installed in the installation groove 212. A spring 214 is sandwiched between the bottom surface of the positioning pin 213 and the bottom surface of the installation groove 212. The outer wall of the mounting housing 11 has positioning grooves 112 equidistantly distributed around its circumference. The positioning grooves 112 are matched with the dimensions of the positioning pin 213. Specifically, the positioning pin 213 restricts the rotation of the rotating chamber 21 by interlocking with the positioning groove 112. When the positioning pin 213 interlocks with the positioning groove 112, the drive gear 15 meshes with one of the gear rings 23 for transmission.

[0026] Example 2: Please refer to Figures 4-6 The surface soil sampler differs from Embodiment 1 in that the soil sampling component 3 includes a screw 31, which is threadedly connected to an internally threaded sleeve 22. Specifically, a blocking block 311 is coaxially fixedly installed at the top of the screw 31 to prevent the screw 31 from detaching from the internally threaded sleeve 22. A soil sampling chamber 32 is coaxially fixedly installed at the bottom of the screw 31. Two soil inlets are symmetrically opened on the outer wall of the soil sampling chamber 32. A set of slide rails 321 is integrally formed at the upper and lower ends of each soil inlet. A sliding baffle 33 is slidably connected between each set of slide rails 321. Specifically, the sliding baffle... The upper and lower ends of the plate 33 are integrally formed with sliders, which are slidably connected to two slide rails 321. The size of the sliding baffle 33 is adapted to the size of the soil inlet. The outer wall of the sliding baffle 33 is integrally formed with a resistance strip. When the soil-taking chamber 32 rotates, the resistance strip can provide a reaction force to the sliding baffle 33 through the resistance of the external soil, driving the sliding baffle 33 to move on the slide rail 321, thereby realizing the opening and closing of the soil inlet. The bottom surface of the soil-taking chamber 32 is integrally formed with a soil-drilling cone head 322. Specifically, the outer wall of the soil-drilling cone head 322 is integrally formed with a screw conveyor blade for easy soil drilling.

[0027] Working principle: The operator moves to the location to be sampled by holding the handle 5 and aligning the bottom of the housing 11 with the ground. The drilling cone 322 of the sampling chamber 32 is inserted into the area to be sampled. The stepper motor 16 is started to rotate forward, which drives the drive gear 15 to rotate. The drive gear 15 drives the internal threaded sleeve 22 to rotate through the gear ring 23. The rotation of the internal threaded sleeve 22 drives the screw 31 to rotate. The screw 31 drives the sampling chamber 32 to rotate synchronously. The outer wall of the drilling cone 322 is equipped with auger blades to facilitate drilling. The screw 31 drives the sampling chamber 32 to move deeper into the soil. During this process, when the sampling chamber 32 rotates, the resistance bar can provide a reaction force to the sliding baffle 33 through the resistance of the external soil, so as to close the soil inlet of the sampling chamber 32.

[0028] When the soil sampling chamber 32 reaches the position where soil needs to be sampled, the stepper motor 16 is started to reverse. At this time, the resistance bar provides a reaction force to the sliding baffle 33, which drives the sliding baffle 33 to move on the slide rail 321, thereby opening the soil inlet and allowing the soil sampling chamber 32 to sample soil to a specified depth.

[0029] After the soil sampling chamber 32 returns to the storage chamber 211 after collecting soil, the positioning pin 213 is pressed to retract it into the mounting groove 212. At this time, the spring 214 is compressed, and the rotating chamber 21 resumes rotational connection within the mounting housing 11. Rotating the rotating assembly 2 causes the gear ring 23 on the outer wall of the next internal threaded sleeve 22 to mesh with the driving gear 15. At this time, the spring 214 releases its elastic force to push out the positioning pin 213 so that it is inserted into the positioning groove 112. Repeating the above operation achieves fixed-point collection of soil from multiple locations. Thus, the operation of this device is completed.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A surface soil sampler, comprising a fixing component (1), characterized in that: The fixing component (1) includes a mounting shell (11), and a mounting column (111) is integrally formed at the center of the bottom surface of the mounting shell (11). A power component is fixedly installed on the top surface of the mounting column (111). A rotating component (2) is coaxially rotatably connected to the outer wall of the mounting column (111). The rotating component (2) includes a rotating chamber (21). Several vertically connected storage chambers (211) are equidistantly opened on the top surface of the rotating chamber (21). A soil-collecting component (3) is movably installed in each of the several storage chambers (211). A mounting ring (4) is fixedly installed on the top surface of the mounting shell (11) by bolts. A hand grip (5) is fixedly installed on the top surface of the mounting ring (4) for easy gripping.

2. The surface soil sampler according to claim 1, characterized in that: The power assembly includes a mounting plate (13), which is coaxially fixedly mounted on the top of the mounting column (111). A connecting arm (14) is fixedly mounted on the top of the mounting plate (13). A drive gear (15) is actively rotatably connected to the end of the connecting arm (14). The shaft of the drive gear (15) passes through the connecting arm (14) and is coaxially connected to a stepper motor (16).

3. The surface soil sampler according to claim 2, characterized in that: Each of the storage compartments (211) is rotatably connected to an internally threaded sleeve (22) on its top. Each of the internally threaded sleeves (22) is coaxially fixedly mounted with a gear ring (23) on its outer wall. The drive gear (15) meshes with one of the gear rings (23) for transmission.

4. The surface soil sampler according to claim 1, characterized in that: The outer wall of the rotating chamber (21) is provided with an installation groove (212), and a positioning pin (213) is slidably installed in the installation groove (212). A spring (214) is sandwiched between the bottom surface of the positioning pin (213) and the bottom surface of the installation groove (212). The outer wall of the mounting shell (11) is provided with positioning grooves (112) at equal intervals around the circumference. The positioning grooves (112) are adapted to the size of the positioning pins (213).

5. The surface soil sampler according to claim 3, characterized in that: The soil sampling assembly (3) includes a screw (31), which is threadedly connected to the internal threaded sleeve (22), and a soil sampling chamber (32) is coaxially fixedly installed at the bottom end of the screw (31).

6. The surface soil sampler according to claim 5, characterized in that: The soil extraction chamber (32) has two symmetrical soil inlets on its outer wall. Each soil inlet is integrally formed with a set of slide rails (321) at its upper and lower ends. Each set of slide rails (321) is slidably connected with a sliding baffle (33). The bottom surface of the soil extraction chamber (32) is integrally formed with a soil drilling cone head (322).

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