Sampling device

Abstract

The utility model relates to the technical field of sampling equipment, and discloses a sampling device which comprises a bottom plate, four stand columns are fixedly connected to the upper surface of the bottom plate, a top plate is fixedly connected to the upper surfaces of the four stand columns, and a lead screw is rotatably connected to the interior of the top plate. According to the sampling device, a lifting plate is driven to ascend and descend when a lead screw rotates, a mounting pipe is promoted to drive an upper sleeve, a sampling pipe and a lower sleeve to ascend and descend, then sampling operation on deep soil is completed, the application range of the device is widened, and the practicability of the device is improved; a mounting pipe is driven to rotate by a second motor under the action of a belt pulley and a belt, and a tool bit is arranged at the bottom of a lower sleeve, so that a sampling pipe and the lower sleeve can be assisted to rotate and move downwards into soil, and the situation that sampling operation is affected by hard soil is avoided; the sampling tube is convenient to disassemble, so that a sample is convenient to collect.

Description

Technical Field

[0001] This application relates to the field of sampling equipment technology, specifically a sampling device. Background Technology

[0002] Soil sampling equipment refers to the tools and equipment used to collect soil samples, and they play an important role in fields such as soil science, agriculture, and environmental monitoring.

[0003] A prior patent (publication number: CN212110634U) discloses a sampling device, including a sampling cylinder, a lifting cylinder, and a rotating rod. The top of the sampling cylinder extends outwards to provide a foot pedal, and the top also has a mounting hole corresponding to the rotating rod. The lower part of the rotating rod has a spiral structure for tightening soil. A push plate is also provided inside the sampling cylinder, and a connecting plate extends upwards from the top of the push plate. The top of the sampling cylinder has a through hole corresponding to the connecting plate. The rotating rod is placed inside the lifting cylinder, and the connecting plate is fixed to the lifting cylinder. The push plate is used to separate the soil after sampling. This utility model discloses a sampling device with a detachable design, simple structure, and a small size, making it easy to carry. The combined use of the push handle and the push plate facilitates the separation of soil from the sampling device.

[0004] The aforementioned sampling device can only sample the surface soil and is not convenient for sampling deeper soil layers, which limits its application range to some extent and leaves room for improvement. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a sampling device that facilitates sampling of deeper soil layers, expands the device's applicability, and improves its practicality. This solves the problem that existing sampling devices can only sample surface soil layers and are not convenient for sampling deeper soil layers, which to some extent limits their application scope.

[0006] To achieve the above objectives, this application provides the following technical solution: a sampling device, comprising a base plate, four columns fixedly connected to the upper surface of the base plate, a top plate fixedly connected to the upper surface of the four columns, a lead screw rotatably connected inside the top plate, the bottom of the lead screw rotatably connected to the inside of the base plate, a first motor fixedly connected to the upper surface of the top plate, the output end of the first motor fixedly connected to the top end of the lead screw, a lifting plate threadedly connected to the outer circumference of the lead screw, an installation tube rotatably connected inside the lifting plate, an upper sleeve slidably inserted inside the installation tube, a sampling tube provided below the upper sleeve, the sampling tube being composed of two splicing pipes, each splicing pipe having a threaded portion at its top and bottom, the two splicing pipes being threadedly connected to the bottom of the upper sleeve through the threaded portion at their top, and a lower sleeve being threadedly connected to the two splicing pipes through the threaded portion at their bottom.

[0007] The above solution addresses the limitation of existing sampling devices, which can only sample surface soil and are not suitable for sampling deeper soil layers. This restricts the device's application range. By rotating the lead screw, the lifting plate is raised and lowered, which in turn causes the installation pipe to move the upper sleeve, sampling pipe, and lower sleeve up and down, thereby enabling sampling of deeper soil layers, expanding the device's applicability and improving its practicality.

[0008] Furthermore, four guide tubes are fixedly connected to the outer surface of the lifting plate, and the inner walls of the guide tubes are slidably sleeved with the outer circumferential surface of the column.

[0009] The above solution ensures the smooth vertical movement of the lifting platform, greatly enhancing the stability of the entire device during operation.

[0010] Furthermore, two limiting rings are fixedly sleeved on the outer circumferential surface of the mounting tube, and the side of the limiting rings near the lifting plate is in contact with the outer surface of the lifting plate.

[0011] The above method restricts the installation pipe, preventing it from easily detaching from the lifting plate and improving the stability of the installation pipe during operation.

[0012] Furthermore, a second motor is fixedly connected to the upper surface of the lifting plate, and pulleys are fixedly sleeved on the output end of the second motor and the top end of the mounting tube, with a belt connecting the two pulleys for transmission.

[0013] The above scheme enables the linkage between the output shaft of the second motor and the mounting tube through the pulley and belt. The second motor then drives the mounting tube to rotate, allowing the sampling tube and the lower sleeve to rotate during the downward movement, thus assisting the sampling tube and the lower sleeve in moving downward for sampling.

[0014] Furthermore, a plug rod is slidably inserted into the interior of the mounting tube, and an insertion hole is provided inside the upper sleeve, through which the plug rod is slidably inserted into the upper sleeve.

[0015] The above method involves inserting the insertion rod into the insertion hole, thereby restricting the upper sleeve and causing it to be fixedly installed inside the installation tube, thus completing the connection between the two.

[0016] Furthermore, a side plate is fixedly connected to the outer surface of the insertion rod, and a spring is fixedly connected to the outer surface of the side plate. The other end of the spring is fixedly connected to the outer surface of the mounting tube.

[0017] The above solution uses the spring's own elasticity to restrict the side plate and the insertion rod, preventing the insertion rod from easily moving out of the insertion hole, increasing the stability of the connection between the installation tube and the upper sleeve, and the spring can drive the side plate and the insertion rod to move back automatically, facilitating the installation and disassembly of the upper sleeve.

[0018] Furthermore, two cutting heads are fixedly connected to the bottom surface of the lower sleeve, and the bottom of the cutting heads is inclined and has a blade shape.

[0019] The above-mentioned scheme allows the inclined, blade-shaped cutting head to cut the soil, assisting the sampling tube and lower sleeve in rotating and moving into the soil, thus avoiding the impact of hard soil on the sampling operation and greatly improving the efficiency of soil sampling.

[0020] Furthermore, a limiting tube is fixedly connected inside the base plate, and the inner diameter of the limiting tube is consistent with the diameter of the outer circumference of the upper sleeve, the sampling tube, and the lower sleeve.

[0021] The above scheme restricts the sampling tube, causing it to move vertically up and down continuously, thus improving the stability of the sampling operation during the downward movement of the sampling tube.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This sampling device uses a screw to rotate, which drives a lifting plate to move up and down. This causes the installation tube, upper sleeve, sampling tube, and lower sleeve to move up and down, thus enabling sampling operations in deeper soil layers. This expands the device's applicability and improves its practicality. A second motor drives the installation tube to rotate under the action of a pulley and belt. A cutter head is installed at the bottom of the lower sleeve to assist the sampling tube and lower sleeve in rotating and moving down into the soil, preventing hard soil from affecting the sampling operation. The upper and lower sleeves fix both ends of the sampling tube, facilitating disassembly and sample collection. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0025] Figure 2 This is a cross-sectional view of the overall structure of this application;

[0026] Figure 3 This is a structural diagram of the installation pipe in this application;

[0027] Figure 4 This is a diagram of the pipe assembly structure for this application;

[0028] Figure 5 This is a structural diagram of the sleeve in this application.

[0029] In the picture:

[0030] 1. Base plate; 2. Column; 3. Top plate; 4. Lead screw; 5. First motor; 6. Lifting plate; 7. Mounting pipe; 8. Upper sleeve; 9. Sampling pipe; 901. Splicing pipe; 902. Threaded part; 10. Lower sleeve; 11. Guide pipe; 12. Limiting ring; 13. Second motor; 14. Pulley; 15. Insert rod; 16. Insertion hole; 17. Side plate; 18. Spring; 19. Cutter head; 20. Limiting pipe. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 4 A sampling device in this embodiment includes a base plate 1, four columns 2 fixedly connected to the upper surface of the base plate 1, a top plate 3 fixedly connected to the upper surface of the four columns 2, a lead screw 4 rotatably connected inside the top plate 3, the bottom of the lead screw 4 rotatably connected to the inside of the base plate 1, a first motor 5 fixedly connected to the upper surface of the top plate 3, the output end of the first motor 5 fixedly connected to the top end of the lead screw 4, a lifting plate 6 threadedly connected to the outer circumference of the lead screw 4, an installation tube 7 rotatably connected inside the lifting plate 6, an upper sleeve 8 slidably inserted inside the installation tube 7, a sampling tube 9 provided below the upper sleeve 8, the sampling tube 9 being spliced ​​from two splicing pipes 901, each splicing pipe 901 having a threaded portion 902 at its top and bottom, the two splicing pipes 901 being threadedly connected to the bottom of the upper sleeve 8 through the threaded portion 902 at their top, and the two splicing pipes 901 being threadedly connected to a lower sleeve 10 through the threaded portion 902 at their bottom.

[0033] Please see Figure 1 and Figure 2Four guide tubes 11 are fixedly connected to the outer surface of the lifting plate 6. The inner wall of the guide tubes 11 is slidably sleeved with the outer circumferential surface of the column 2, which ensures the smooth movement of the lifting plate 6 in the vertical direction and greatly enhances the stability of the entire device during operation.

[0034] Please see Figure 1 , Figure 2 and Figure 3 Two limiting rings 12 are fixedly sleeved on the outer circumference of the installation pipe 7. The side of the limiting ring 12 closest to the lifting plate 6 contacts the outer surface of the lifting plate 6 to restrict the installation pipe 7, prevent the installation pipe 7 from easily falling off the lifting plate 6, and improve the stability of the installation pipe 7 during operation.

[0035] Please see Figure 1 , Figure 2 and Figure 3 A second motor 13 is fixedly connected to the upper surface of the lifting plate 6. A pulley 14 is fixedly sleeved on the output end of the second motor 13 and the top end of the mounting tube 7. A belt is connected between the two pulleys 14. The pulleys 14 and the belt can realize the linkage between the output shaft of the second motor 13 and the mounting tube 7. The second motor 13 drives the mounting tube 7 to rotate, so that the sampling tube 9 and the lower sleeve 10 can rotate during the downward movement, which helps the sampling tube 9 and the lower sleeve 10 to move downward and sample.

[0036] Please see Figure 1 , Figure 2 and Figure 3 The installation tube 7 has a sliding insertion rod 15 inside, and the upper sleeve 8 has an insertion hole 16 inside. The insertion rod 15 is slidably inserted into the upper sleeve 8 through the insertion hole 16. The insertion rod 15 is inserted into the insertion hole 16, thereby restricting the upper sleeve 8 and causing the upper sleeve 8 to be fixedly installed inside the installation tube 7, thus completing the connection between the two.

[0037] Please see Figure 1 , Figure 2 and Figure 3 A side plate 17 is fixedly connected to the outer surface of the insertion rod 15, and a spring 18 is fixedly connected to the outer surface of the side plate 17. The other end of the spring 18 is fixedly connected to the outer surface of the mounting tube 7. The spring 18 restricts the side plate 17 and the insertion rod 15 by its own elasticity, preventing the insertion rod 15 from easily moving out of the insertion hole 16, increasing the stability of the connection between the mounting tube 7 and the upper sleeve 8. In addition, the spring 18 can drive the side plate 17 and the insertion rod 15 to move back automatically, which facilitates the installation and disassembly of the upper sleeve 8.

[0038] Please see Figure 2 , Figure 4 and Figure 5Two cutter heads 19 are fixedly connected to the bottom surface of the lower sleeve 10. The bottom of the cutter head 19 is inclined and blade-shaped. The inclined and blade-shaped cutter head 19 can cut the soil and assist the sampling tube 9 and the lower sleeve 10 to rotate and move down into the soil. This avoids the hard soil affecting the sampling operation and greatly improves the efficiency of soil sampling.

[0039] Please see Figure 1 and Figure 2 The base plate 1 is fixedly connected to a limiting tube 20. The inner diameter of the limiting tube 20 is consistent with the outer circumferential diameter of the upper sleeve 8, the sampling tube 9 and the lower sleeve 10, which restricts the sampling tube 9 and causes the sampling tube 9 to move vertically at all times, thereby improving the stability of the sampling tube 9 during the downward sampling operation.

[0040] In this embodiment, a sampling device uses a lead screw 4 to rotate, which drives a lifting plate 6 to move up and down. This causes the installation tube 7 to move up and down, along with the upper sleeve 8, sampling tube 9, and lower sleeve 10, thus enabling sampling of deeper soil layers. This expands the applicability of the device and improves its practicality. A second motor 13 drives the installation tube 7 to rotate under the action of a pulley 14 and a belt. A cutter head 19 is provided at the bottom of the lower sleeve 10 to assist the sampling tube 9 and the lower sleeve 10 in rotating and moving down into the soil, preventing hard soil from affecting the sampling operation. The upper sleeve 8 and the lower sleeve 10 are used to fix both ends of the sampling tube 9, facilitating the disassembly of the sampling tube 9 and the collection of samples.

[0041] It should be noted that the lower sleeve 10 has a hollow structure, allowing soil to pass through the lower sleeve 10 for sampling.

[0042] The working principle of the above embodiments is as follows:

[0043] During soil sampling, the device is placed at the sampling location, pressed down, and the first motor 5 is started to drive the lead screw 4 to rotate, causing the lifting plate 6 to move downwards. The lifting plate 6, through the mounting tube 7, drives the upper sleeve 8 to move downwards. The upper sleeve 8 then drives the sampling tube 9 and the lower sleeve 10 to move downwards. During the downward sampling process, the second motor 13 is started, driving the mounting tube 7 to rotate under the action of the pulley 14 and the belt. The mounting tube 7, through the upper sleeve 8, drives the sampling tube 9 and the lower sleeve 10 to rotate. The lower sleeve 10 drives the cutter head 19 to rotate. The rotating cutter head 19 can cut the soil during the downward movement, assisting the sampling tube 9 and the lower sleeve 10 to rotate and move downwards into the soil. To avoid the impact of hard soil on the sampling operation, the sampling tube 9 and the lower sleeve 10 can complete the soil sampling operation during the rotation and downward movement. After the sampling tube 9 is moved down to the required sampling depth, the second motor 13 can be turned off, and the first motor 5 drives the lead screw 4 to rotate in the opposite direction, so that the lifting plate 6 moves up, thereby moving the sampling tube 9 out of the soil. After the sampling tube 9 is moved out, the insertion rod 15 is pulled out from the insertion hole 16 by the side plate 17, and then the upper sleeve 8 is moved out from the installation tube 7. Finally, the upper sleeve 8 and the lower sleeve 10 are rotated off from both ends of the sampling tube 9, so that the two splicing pipes 901 can be separated and the soil sample inside can be taken out.

[0044] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sampling device, comprising a base plate (1), characterized in that: Four columns (2) are fixedly connected to the upper surface of the base plate (1), and a top plate (3) is fixedly connected to the upper surface of the four columns (2). A lead screw (4) is rotatably connected inside the top plate (3). The bottom of the lead screw (4) is rotatably connected to the inside of the base plate (1). A first motor (5) is fixedly connected to the upper surface of the top plate (3). The output end of the first motor (5) is fixedly connected to the top end of the lead screw (4). A lifting plate (6) is threadedly connected to the outer circumference of the lead screw (4). A lifting plate (6) is rotatably connected inside the lifting plate (6). The installation tube (7) has an upper sleeve (8) slidably inserted inside it. A sampling tube (9) is provided below the upper sleeve (8). The sampling tube (9) is made up of two splicing tubes (901). Each splicing tube (901) has a threaded part (902) at its top and bottom. The two splicing tubes (901) are connected to the bottom of the upper sleeve (8) by the threaded part (902) at their top. The two splicing tubes (901) are connected to the lower sleeve (10) by the threaded part (902) at their bottom.

2. The sampling device according to claim 1, characterized in that: Four guide tubes (11) are fixedly connected to the outer surface of the lifting plate (6), and the inner wall of the guide tubes (11) is slidably sleeved with the outer circumferential surface of the column (2).

3. The sampling device according to claim 1, characterized in that: Two limiting rings (12) are fixedly sleeved on the outer circumference of the mounting tube (7). The side of the limiting ring (12) closest to the lifting plate (6) contacts the outer surface of the lifting plate (6).

4. A sampling device according to claim 1, characterized in that: The upper surface of the lifting plate (6) is fixedly connected to a second motor (13), and the output end of the second motor (13) and the top end of the mounting tube (7) are both fixedly fitted with pulleys (14), and a belt is connected between the two pulleys (14).

5. A sampling device according to claim 1, characterized in that: The mounting tube (7) has a slidably inserted rod (15) inside, and the upper sleeve (8) has an insertion hole (16) inside. The rod (15) is slidably inserted into the upper sleeve (8) through the insertion hole (16).

6. A sampling device according to claim 5, characterized in that: A side plate (17) is fixedly connected to the outer surface of the insertion rod (15), and a spring (18) is fixedly connected to the outer surface of the side plate (17). The other end of the spring (18) is fixedly connected to the outer surface of the mounting tube (7).

7. A sampling device according to claim 1, characterized in that: Two blades (19) are fixedly connected to the bottom surface of the lower sleeve (10). The blades (19) are inclined at the bottom and are blade-shaped.

8. A sampling device according to claim 1, characterized in that: The base plate (1) is fixedly connected to a limiting tube (20), and the inner wall diameter of the limiting tube (20) is consistent with the outer circumferential diameter of the upper sleeve (8), the sampling tube (9) and the lower sleeve (10).

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