Depth-adjustable automatic sampler for soil sample of saline-alkali land

The adjustable depth sampler driven by a servo motor solves the problem of manual pressing in saline-alkali soil samplers, realizes automated sampling, and improves the flexibility and accuracy of sampling.

CN224247354UActive Publication Date: 2026-05-15GANSU JINSU AGRI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GANSU JINSU AGRI TECH CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing soil samplers for saline-alkali land require manual pressing, which increases the physical exertion of personnel and reduces the automation performance of sampling.

Method used

An adjustable depth sampler driven by a servo motor works in conjunction with a drive screw to automatically lift and lower the soil sampling chamber and move the sampling components. Combined with transmission and drive components, it automates soil sampling and ensures sampling accuracy through a material blocking component.

Benefits of technology

It has enabled automated sampling of saline-alkali soil, reducing manpower consumption, improving the flexibility and intelligence of sampling, and ensuring sampling accuracy and the convenience of stratified sampling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a depth-adjustable automatic sampler for a saline-alkali soil sample, which belongs to the technical field of soil sampling and comprises a sampling component I. A transmission component and a driving component are respectively mounted in the sampling component I and are matched with each other. The bottom of one side of the driving assembly is provided with a sampling assembly II, and one side, close to the sampling assembly II, of the sampling assembly I is provided with a material blocking assembly. Through the structural design of the sampling assembly I, the transmission assembly, the driving assembly and the sampling assembly II, the later-stage automatic sampling work of the sampler can be realized; according to the sampler, an operator does not need to apply force to press, the flexibility and convenience of later sampling are improved, the sampling cup can be conveniently detached, replaced or cleaned in the later period, the convenience and flexibility of later sampling cup detachment are improved, and the accuracy of later sampling can be ensured in cooperation with the material blocking assembly.
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Description

Technical Field

[0001] This utility model belongs to the field of soil sampling technology, specifically relating to an automated sampler for saline-alkali soil with adjustable depth. Background Technology

[0002] Saline-alkali land is a special type of soil containing high levels of salt and alkaline substances, making it difficult to use for agricultural production. When crops need to be planted on saline-alkali land, it is necessary to sample and analyze the soil to facilitate subsequent improvement. Sampling of saline-alkali land requires the use of a soil sampler, so it is necessary to design an automated saline-alkali land soil sampler with adjustable depth.

[0003] For example, in the Chinese utility model with announcement number CN222419579U and the name "A Soil Sampler for Saline-Alkali Land", an outer cylinder, an inner column, a screwing assembly, and a handle assembly are included. The outer cylinder has a foot pedal assembly at its bottom and a slanted insertion part fixedly connected to its bottom. The inner column is threaded into the interior of the outer cylinder and has a connecting part at its bottom. The bottom of the connecting part has a sampling part. The upper part of the outer wall of the inner column has a slot, and the top of the inner column is fixedly connected to a toothed ring. The screwing assembly includes a detachable screwing column inserted into the top of the inner column. A connecting block is fixedly connected to the screwing column, and an insertion shaft is inserted into the connecting block. A locking tooth is rotatably connected to the insertion shaft. The top of the screwing column has a screwing cylinder, which is slidably connected to the inner column. The handle assembly is located at the top of both sides of the outer wall of the screw cylinder. Although the existing technology described above uses an outer cylinder to enclose an inner column, with the outer cylinder responsible for stabilization and the inner cylinder responsible for sampling, thus enhancing the stability of sampling, the existing technology still requires manual pressing of the sampling cylinder, which increases the physical exertion of personnel and reduces the automation performance of sampling. Utility Model Content

[0004] The purpose of this invention is to provide an automated sampler for saline-alkali soil samples with a simple structure and reasonable design that can adjust the depth in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] An automated sampler for saline-alkali soil with adjustable depth includes a base. Servo motors are mounted on both sides of the top of the base. Drive screws are mounted on the output ends of both servo motors. An internally threaded mounting plate is fitted around the two drive screws, and the internally threaded mounting plate engages with the drive screws. A sampling component is mounted at the bottom of the internally threaded mounting plate. A transmission component and a drive component are installed inside the sampling component, and the transmission component and drive component cooperate with each other. A second sampling component is mounted on the bottom of one side of the drive component. A material-blocking component is mounted on the side of the first sampling component near the second sampling component, and the material-blocking component cooperates with the second sampling component.

[0007] As a further optimization of this utility model, the sampling component includes a ground insertion chamber installed at the bottom center of an internally threaded mounting plate. The ground insertion chamber has an installation groove, and a transmission component and a drive component are installed inside the installation groove, and the transmission component and the drive component cooperate with each other.

[0008] As a further optimization of this utility model, the driving assembly includes a screw 2 installed in the middle position inside the mounting slot 1. The driving assembly also includes a screw 1 and a screw 3 installed at the top and bottom of the mounting slot 1. One side of the screw 2, screw 1 and screw 3 is threaded with an internally threaded mounting plate 2. A sampling component 2 is installed at the bottom of one side of each of the three sets of internally threaded mounting plates 2.

[0009] As a further optimization of this utility model, the transmission assembly includes a servo motor 2 installed on the top of the mounting groove 1 near the internal thread mounting plate 2, and the servo motor 2 is installed directly above the screw 1. The output end of the servo motor 2 is equipped with a pulley 1. The transmission assembly also includes a double groove pulley 1, a double groove pulley 2, and a pulley 2 installed on the outside of the screw 1, screw 2, and screw 3 near the internal thread mounting plate 2. The outside of the double groove pulley 1 and the double groove pulley 2, away from the internal thread mounting plate 2, are jointly fitted with a belt 2. The outside of the double groove pulley 1, near the internal thread mounting plate 2, and the outside of the pulley 1 are jointly fitted with a belt 1. The outside of the double groove pulley 2, near the internal thread mounting plate 2, and the outside of the pulley 2 are jointly fitted with a belt 3.

[0010] As a further optimization of this utility model, the sampling component two includes a mounting groove two installed on the bottom of the internal thread mounting plate two away from the transmission component. A magnet is installed inside the mounting groove two on the side near the internal thread mounting plate two. A sampling cup extending to the outside is inserted into the side of the mounting groove two away from the internal thread mounting plate two. An iron piece that cooperates with the sampling cup is installed on the side of the sampling cup near the magnet. Spikes are evenly installed on the edge of the sampling cup away from the mounting groove two.

[0011] As a further optimization of this utility model, the material blocking assembly includes three sets of discharge ports opened on the side of the insertion chamber near the sampling assembly two, and the discharge ports are connected to the inside and outside of the mounting groove one and cooperate with the sampling cup. The interior of each of the three sets of discharge ports is threaded with a mounting ring, and the inner side of each of the three sets of mounting rings is equipped with a film, and the film cooperates with the spikes.

[0012] As a further optimization of this utility model, brake-type universal wheels are installed at the four corners of the bottom of the base, and a through hole is opened in the middle of the interior of the base to fit outside the insertion compartment.

[0013] As a further optimization of this utility model, the top of both sets of drive screws is jointly equipped with a reinforcing plate, and both sides of the bottom of the reinforcing plate are provided with rotating shafts that cooperate with the drive screws.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model, through the internal structural design of sampling component one, facilitates the lifting and lowering of the insertion chamber and its components above it, enabling automated lowering later. Combined with the structural design of the transmission component, drive component, and sampling component two, the transmission component can easily push the drive component to move sampling component two to the outside of the insertion chamber, allowing the sampling cup to be inserted into the soil on the side of the insertion chamber. This enables automated sampling operations without manual pressing. Furthermore, the design of multiple sampling components two allows for layered sampling, facilitating sampling at different soil depths and improving the flexibility and intelligence of the sampling process.

[0016] 2. The sampling component 2 of this utility model also facilitates the disassembly of the sampling cup in the later stage, so as to prevent the operators from transferring and storing soil samples in the later stage, and facilitates the direct use of the samples by the operators in the later stage. Finally, with the structural design of the baffle component, it is also convenient to seal the sampling cup before sampling, so as to prevent some soil debris from entering the sampling cup during the insertion of the insertion chamber, thus ensuring the accuracy of soil sampling and testing in the later stage. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the transmission component of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the sampling cup of this utility model;

[0021] Figure 5 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 6 This is a utility model Figure 5 Enlarged view at point B in the middle;

[0023] Figure 7 This is a utility model Figure 5 Enlarged view of point C.

[0024] In the diagram: 1. Sampling component one; 100. Base; 101. Servo motor one; 102. Drive screw; 103. Internal thread mounting plate one; 104. Reinforcing plate; 105. Ground insertion chamber; 106. Through hole; 107. Mounting slot one; 108. Brake-type universal wheel; 2. Transmission component; 200. Servo motor two; 201. Pulley one; 202. Belt one; 203. Double groove pulley one; 204. Belt two; 2 05. Double groove pulley II; 206. Pulley II; 207. Belt III; 3. Drive assembly; 300. Screw I; 301. Screw II; 302. Internal thread mounting plate II; 303. Screw III; 4. Sampling assembly II; 400. Magnet; 401. Iron sheet; 402. Mounting groove II; 403. Sampling cup; 404. Spike; 5. Material stop assembly; 500. Discharge port; 501. Mounting ring; 502. Membrane. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0026] Example 1

[0027] like Figure 1 , Figure 2As shown, an automated sampler for saline-alkali soil with adjustable depth includes a base 100. The base 100 facilitates the fixed installation of the sampler and its components. Servo motors 101 are mounted on both sides of the top of the base 100, enabling the rotation of drive screws 102. Drive screws 102 are mounted on the output ends of both servo motors 101. Support frames are rotatably connected to the bottom outer sides of the two drive screws 102, and these support frames are fitted around the servo motors 101 and connected to the top of the base 100, facilitating the control of the drive screws. For the installation and support of the screws 102, a reinforcing plate 104 is mounted on the top of both sets of drive screws 102. Both sides of the bottom of the reinforcing plate 104 are equipped with rotating shafts that cooperate with the drive screws 102. The reinforcing plate 104 enhances the stability of the tops of the two sets of drive screws 102, and the rotating shafts facilitate the rotation of the drive screws 102. Additionally, a battery can be installed on the top of the reinforcing plate 104 to power the internal electrical components of the sampler. An internally threaded mounting plate 103 is fitted around the outside of both sets of drive screws 102. The 03 is threadedly engaged with the drive screw 102. Later, through the rotation of the drive screw 102, and the threaded engagement design of the internal thread mounting plate 103 with the drive screw 102, the internal thread mounting plate 103 can be easily moved upwards outside the drive screw 102. The sampling component 1 includes a ground insertion compartment 105 installed at the center of the bottom of the internal thread mounting plate 103. The design of the ground insertion compartment 105 facilitates later downward movement and insertion into the ground by pushing the internal thread mounting plate 103 into the ground. Brake-type universal wheels 108 are installed at the four corners of the bottom of the base 100. The caster wheel 108 facilitates the later pushing and transporting of the base 100. A through hole 106 is provided in the middle of the base 100, which is fitted onto the outside of the insertion compartment 105, to facilitate the later displacement of the insertion compartment 105. An installation groove 107 is provided inside the insertion compartment 105, which facilitates the later installation of the transmission component 2, drive component 3, sampling component 4 and material stop component 5, and facilitates the later sampling operation. The transmission component 2 and drive component 3 are installed inside the installation groove 107, and the transmission component 2 and drive component 3 cooperate with each other.

[0028] like Figure 3 , Figure 5As shown, the sampling component 1 has a transmission component 2 and a drive component 3 installed inside, and the transmission component 2 and the drive component 3 cooperate with each other. The drive component 3 includes a second screw 301 installed in the middle position inside the mounting groove 107, and the drive component 3 also includes a first screw 300 and a third screw 303 installed at the top and bottom of the mounting groove 107. One side of the outside of the second screw 301, the first screw 300, and the third screw 303 is threaded with an internally threaded mounting plate 302. The bottom of the three sets of internally threaded mounting plates 302 away from the sampling component 24 is equipped with a limiting sleeve, and the inner of the three sets of limiting sleeves is... Each part is slidably inserted with a limiting sleeve rod connected to the inner side of the mounting groove 107. Sampling component 2 4 is installed on the bottom of one side of each of the three sets of internal thread mounting plates 2 302. The threaded engagement design of screw 1 300, screw 2 301 and screw 3 303 with internal thread mounting plate 2 302 facilitates the driving left and right displacement operation of internal thread mounting plate 2 302 when screw 1 300, screw 2 301 and screw 3 303 rotates. This prevents the sampling component 2 4 from being removed by moving internal thread mounting plate 2 302 in the future, and facilitates the insertion and sampling of soil on the side of the insertion chamber 105.

[0029] like Figure 3 , Figure 5 As shown, the transmission assembly 2 includes a servo motor 200 installed in the top of the mounting groove 107 near the internal thread mounting plate 302, and the servo motor 200 is installed directly above the screw 300. A pulley 201 is installed at the output end of the servo motor 200. The transmission assembly 2 also includes a double-groove pulley 203, a double-groove pulley 205, and a pulley 206 installed on the outside of the screw 300, screw 301, and screw 303 near the internal thread mounting plate 302. A belt 204 is fitted on the outside of the double-groove pulleys 203 and 205 away from the internal thread mounting plate 302. A belt 204 is fitted on the outside of the double-groove pulley 203 near the internal thread mounting plate 302 and the outside of the pulley 201. 2. A belt 207 is fitted around the outside of the double-groove pulley 205 near the inner thread mounting plate 302 and the outside of the pulley 206. Through the coordinated design of pulley 1 201, belt 1 202, double-groove pulley 1 203, belt 2 204, double-groove pulley 205, belt 3 207 and pulley 206, the servo motor 200 can simultaneously drive screw 1 300, screw 2 301 and screw 3 303 to rotate, and then drive the inner thread mounting plate 2 302 and the above components to move, so as to facilitate sampling by sampling component 2 4. At the same time, the reverse operation of the servo motor 200 can be used to easily store the sampling component 2 4 after sampling, so as to facilitate the removal of the insertion chamber 105.

[0030] like Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a sampling component 2 4 is installed at the bottom of one side of the drive assembly 3. The sampling component 2 4 includes a mounting groove 2 402 installed on the bottom of the internal thread mounting plate 2 302 on the side away from the transmission assembly 2. A magnet 400 is installed inside the mounting groove 2 402 on the side near the internal thread mounting plate 2 302. A sampling cup 403 extending to the outside is inserted into the side of the mounting groove 2 402 on the side away from the internal thread mounting plate 2 302. An iron piece 401 that mates with the sampling cup 403 is installed on the side of the sampling cup 403 near the magnet 400. The sampling cup 403 on the side away from the mounting groove 2 402... Spikes 404 are evenly installed along the edge, facilitating soil sampling via the sampling cup 403. The design of the magnet 400 and the iron plate 401 allows for easy disassembly of the sampling cup 403 and magnet 400, enabling operators to remove soil from the sampling cup 403 and replace or clean it. Finally, the spikes 404 can puncture the membrane 502 when the sampling cup 403 is pushed, facilitating soil sampling.

[0031] like Figure 1 , Figure 7 As shown, a baffle assembly 5 is installed on the side of sampling component 1 near sampling component 2 4, and the baffle assembly 5 cooperates with sampling component 2 4. The baffle assembly 5 includes three sets of discharge ports 500 opened on the side of the insertion chamber 105 near sampling component 2 4, and the discharge ports 500 are connected to the inside and outside of the installation groove 107 and cooperate with the sampling cup 403. The opening of the discharge ports 500 facilitates the subsequent displacement and sampling work of sampling component 2 4. At the same time, the inner side of the discharge port 500 is also provided with a connection to the mounting groove 107. The installation ring 501 is threaded to fit the three sets of discharge ports 500. The threaded connection between the installation ring 501 and the discharge port 500 facilitates the replacement of the membrane 502 by the operator. The membrane 502 is installed on the inner side of each of the three sets of installation rings 501. The membrane 502 fits with the spike 404. The design of the membrane 502 facilitates the sealing of the inside of the sampling cup 403 to ensure the accuracy of subsequent soil sampling and testing.

[0032] It should be noted that, in use, the operator can first drive the base 100 and above components through the drive screw 102, and then use the braked universal wheels 108 to roll in contact with the ground, thereby realizing the transfer of the base 100 and above components. Later, the drive screw 102 can be rotated by the servo motor 101. At this time, the threaded engagement design between the internal thread mounting plate 103 and the drive screw 102 can facilitate the drive of the internal thread mounting plate 103 to drive the insertion chamber 105 to move down and insert into the ground through the through hole 106. Later, the insertion chamber 105 can be pulled out by the reverse rotation of the servo motor 101.

[0033] After the insertion chamber 105 is inserted into the soil, the servo motor 200 rotates the pulley 201. At this time, through the belt connection design of belt 202, double-groove pulley 203, belt 204, double-groove pulley 205, belt 207, and pulley 206, the screws 300, 301, and 303 can rotate simultaneously. This drives the three sets of internally threaded mounting plates 302 to move outside the screws 300, 301, and 303, allowing the internally threaded mounting plates 302 to push the sampling assembly 4 and its upper parts. The sample cup 403 is pushed out to the outside of the insertion chamber 105. At the same time, the spikes 404 designed on one side of the sampling cup 403 can first puncture the membrane 502 to remove the obstruction to the inside of the sampling cup 403. Then, the soil on the side of the insertion chamber 105 can enter its interior through the pushing out of the sampling cup 403, thus completing the sampling work. Moreover, through the multiple sets of sampling cups 403, sampling operations at different depths can be completed. Finally, the reverse operation of the transmission component 2 can drive the drive component 3 to drive the sampling component 4 to move in the opposite direction, and then the sampling cup 403 can be stored, making it convenient to pull out the insertion chamber 105 later.

[0034] Later, by rotating the mounting ring 501 to disengage it into the discharge port 500, the membrane 502 can be replaced, thus enabling the sampler to be recycled. The membrane 502 facilitates the insertion of the insertion chamber 105 to block material from entering the sampling cup 403. Finally, by pulling out the insertion chamber 105, and then driving the driving component 3 through the transmission component 2 to move the sampling component 4 through the discharge port 500 into the mounting groove 107, the operator can directly pull out the sampling cup 403, causing the iron plate 401 to disengage from the magnet 400, and then the sampling cup 403 to disengage into the mounting groove 2 402, thus completing the disassembly of the sampling cup 403. This facilitates the later extraction of soil samples from the sampling cup 403 and the cleaning of its interior.

[0035] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. An automated sampler for saline-alkali soil with adjustable depth, comprising a base (100), characterized in that, Servo motors (101) are installed on both sides of the top of the base (100). Drive screws (102) are installed at the output ends of the two sets of servo motors (101). The two sets of drive screws (102) are fitted with internal thread mounting plates (103) on their exteriors. The internal thread mounting plates (103) are threadedly engaged with the drive screws (102). A sampling component (1) is installed at the bottom of the internal thread mounting plates (103). A transmission component (2) and a drive component (3) are installed inside the sampling component (1). The transmission component (2) and the drive component (3) are engaged with each other. A sampling component (4) is installed at the bottom of one side of the drive component (3). A baffle component (5) is installed on the side of the sampling component (1) close to the sampling component (4). The baffle component (5) is engaged with the sampling component (4).

2. The adjustable-depth automated soil sampler for saline-alkali land as described in claim 1, characterized in that: The sampling component (1) includes a ground insertion chamber (105) installed at the middle position of the bottom of the internal thread mounting plate (103). The ground insertion chamber (105) has an installation groove (107) inside. The installation groove (107) has a transmission component (2) and a drive component (3) installed inside, and the transmission component (2) and the drive component (3) cooperate with each other.

3. The adjustable-depth automated soil sampler for saline-alkali land as described in claim 2, characterized in that: The drive assembly (3) includes a screw two (301) installed in the middle position inside the mounting slot one (107). The drive assembly (3) also includes a screw one (300) and a screw three (303) installed at the top and bottom of the mounting slot one (107). One side of the screw two (301), screw one (300) and screw three (303) is threaded with an internal thread mounting plate two (302). A sampling assembly two (4) is installed at the bottom of one side of each of the three sets of internal thread mounting plates two (302).

4. The adjustable-depth automated sampler for saline-alkali soil as described in claim 3, characterized in that: The transmission assembly (2) includes a servo motor 2 (200) installed in the top of the mounting groove 1 (107) near the internal thread mounting plate 2 (302), and the servo motor 2 (200) is installed directly above the screw 1 (300). The output end of the servo motor 2 (200) is equipped with a pulley 1 (201). The transmission assembly (2) also includes a double groove pulley 1 (203) and a double groove pulley 2 (201) installed on the outside of the screw 1 (300), screw 2 (301) and screw 3 (303) near the internal thread mounting plate 2 (302). 05) and pulley two (206), the double groove pulley one (203) and double groove pulley two (205) are together fitted with belt two (204) on the side away from the internal thread mounting plate two (302) on the outside, the double groove pulley one (203) is together fitted with belt one (202) on the side close to the internal thread mounting plate two (302) on the outside and the outside of pulley one (201) on the outside, and the double groove pulley two (205) is together fitted with belt three (207) on the side close to the internal thread mounting plate two (302) on the outside and the outside of pulley two (206) on the outside.

5. The adjustable-depth automated sampler for saline-alkali soil as described in claim 3, characterized in that: The sampling component 2 (4) includes a mounting groove 2 (402) installed on the bottom of the inner thread mounting plate 2 (302) away from the transmission component (2). A magnet (400) is installed inside the mounting groove 2 (402) on the side near the inner thread mounting plate 2 (302). A sampling cup (403) extending to the outside is inserted into the side of the mounting groove 2 (402) away from the inner thread mounting plate 2 (302). An iron piece (401) that cooperates with the sampling cup (403) is installed on the side of the sampling cup (403) near the magnet (400). Spikes (404) are evenly installed on the edge of the sampling cup (403) away from the mounting groove 2 (402).

6. The adjustable-depth automated soil sampler for saline-alkali land as described in claim 5, characterized in that: The material blocking assembly (5) includes three sets of discharge ports (500) opened on the side of the insertion chamber (105) near the sampling assembly (4). The discharge ports (500) are connected to the inside and outside of the mounting groove (107) and cooperate with the sampling cup (403). The interior of each of the three sets of discharge ports (500) is threaded with a mounting ring (501). The inner side of each of the three sets of mounting rings (501) is equipped with a film (502), and the film (502) cooperates with the spike (404).

7. The adjustable-depth automated soil sampler for saline-alkali land as described in claim 1, characterized in that: Brake-type casters (108) are installed at the four corners of the bottom of the base (100), and a through hole (106) is provided in the middle of the interior of the base (100) to fit outside the insertion compartment (105).

8. The adjustable-depth automated soil sampler for saline-alkali land as described in claim 1, characterized in that: The top of both sets of drive screws (102) is equipped with a reinforcing plate (104), and both sides of the bottom of the reinforcing plate (104) are provided with a rotating shaft that cooperates with the drive screw (102).