A rapid detection device for soil pH for Chinese medicinal material planting

Abstract

The present invention discloses a rapid soil pH detection device for Chinese medicinal material planting, which relates to the technical field of soil detection equipment. The device comprises a first sampling rack, a second sampling rack and a connecting bracket arranged on the outside of the two. The end of the connecting bracket is provided with a first suspension arm. The side of the first suspension arm is connected to an electric gear 1 through a vertically distributed rack. When the electric gear 1 rotates, the first suspension arm, the connecting bracket, the first sampling rack and the second sampling rack can move up or down synchronously. When the first sampling rack and the second sampling rack are lowered, they can be embedded in the soil to perform sampling. The present invention is provided with a first sampling rack and a second sampling rack with adjustable height. After the soil is sampled, the soil can be located inside the sampling rack to undergo pH detection. No additional soil transfer is required during the entire process, which reduces the time required for soil sample transportation operations, thereby achieving the purpose of rapid detection and improving the portability of the detection work.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection equipment, and in particular to a rapid detection device for soil pH for planting Chinese medicinal materials. Background Art

[0002] Testing soil pH during the cultivation of Chinese medicinal herbs is a key measure for ensuring their quality, yield, and safety. Different Chinese medicinal herbs vary significantly in their adaptability to soil pH. For example, gardenia and magnolia officinalis grow best in acidic environments with a pH of 5.5-6.5. Ophiopogon japonicus and wolfberry grow best in alkaline soils with a pH > 7.5. Most herbs, such as lily and safflower, thrive in neutral to slightly acidic or slightly alkaline environments with a pH of 6.5-7.5. By testing soil pH, growers can strategically select sites and adjust soil conditions to avoid poor growth or even plant death due to acid-base incompatibility. Soil pH directly affects the solubility and absorption efficiency of mineral elements. In the cultivation of various Chinese medicinal herbs, pH testing and scientific management can significantly improve yield, quality, and profitability while reducing environmental impact and meeting the needs of sustainable agriculture.

[0003] Most of the existing pH detection devices used in soil use a pH meter to detect pH values. Before testing, the instrument needs to be calibrated with a standard buffer solution. Subsequently, the instrument is used to perform a detection operation on the prepared soil liquid, and the results are recorded after the readings stabilize. This detection method is mostly suitable for laboratories. When performing a pH detection operation on the soil in a Chinese medicinal material planting environment, it is necessary to perform a sampling operation on the soil, and then transfer the sample to the laboratory. After the sample preparation is completed, the detection operation is performed. After the detection operation is completed, the pH adjustment operation is performed on the Chinese medicinal material planting soil based on the test results. The process is cumbersome and consumes human resources. If it is necessary to perform a pH detection operation on multiple types of Chinese medicinal material planting soils, the detection will take a long time and be inefficient. Therefore, the present invention provides a rapid pH detection device for soil used for Chinese medicinal material planting. Summary of the Invention

[0004] In view of the above problems, the present invention provides a rapid detection device for soil pH for Chinese medicinal material planting.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rapid soil pH detection device for Chinese medicinal material planting, comprising a first sampling rack, a second sampling rack, and a connecting bracket disposed outside the first and second sampling racks. The connecting bracket has a first boom at its end, and a side of the first boom is connected to a first electric gear via a vertically arranged rack. When the first electric gear rotates, the first boom, the connecting bracket, the first sampling rack, and the second sampling rack can rise or fall synchronously. When the first and second sampling racks descend, they can embed themselves into the soil to perform sampling.

[0006] A bracket is provided above the connecting bracket, and two positioning side frames are provided at the bottom end of the bracket. Extension arms that can rotate synchronously are rotatably installed on the opposite sides of the two positioning side frames. The two extension arms are connected through a sewage bucket at one end away from the positioning side frame. One of the extension arms is provided with a linkage gear plate that can rotate synchronously therewith. The linkage gear plate is engaged with the electric gear one, and the linkage gear plate and the first hanging arm are relatively distributed on both sides of the electric gear one. When the electric gear one rotates and the first hanging arm and the connecting bracket rise synchronously, the linkage gear plate and the two extension arms rotate synchronously until the sewage bucket falls directly below the first sampling rack and the second sampling rack.

[0007] Furthermore, the connecting bracket is provided with a second boom at one end away from the first boom, and the positioning side frame is provided with a vertically distributed limit slider 1, and the limit slider 1 is slidably connected to the second boom. When the electric gear 1 engages the first boom and moves synchronously with the connecting bracket to rise or fall, the second boom moves along the distribution direction of the limit slider 1.

[0008] Furthermore, the first sampling rack and the second sampling rack are both composed of a semicircular rack body and a semi-conical rack body located at the bottom end thereof. When the first sampling rack and the second sampling rack are connected to each other, the first sampling rack and the second sampling rack form a columnar accommodating space and an inverted frustum-shaped accommodating space distributed from top to bottom.

[0009] A sealing strip is provided at the side edge of the first sampling rack. When the first sampling rack and the second sampling rack are in a closed state, the sealing strip covers the side edge of the second sampling rack.

[0010] Furthermore, the ends of the first sampling rack and the second sampling rack are respectively provided with a first guide cross bar and a second guide cross bar, and the connecting bracket is provided with a channel for accommodating the movement of the first guide cross bar and the second guide cross bar on one side thereof.

[0011] The first guide cross bar and the second guide cross bar are distributed from top to bottom, and the opposite sides of the first guide cross bar and the second guide cross bar are provided with transversely distributed racks. The two racks distributed from top to bottom are meshed and connected with the same electric gear three. The electric gear three is located in the relative space between the first guide cross bar and the second guide cross bar, and the electric gear three is installed on the outside of the connecting bracket. When the electric gear three rotates, the first guide cross bar and the second guide cross bar can move in opposite directions until the first sampling rack and the second sampling rack move closer or move away.

[0012] Furthermore, the first sampling rack and the second sampling rack are respectively provided with a first linkage cross bar and a second linkage cross bar at one end away from the electric gear three, and the connecting support is provided with a channel to accommodate the movement of the first linkage cross bar and the second linkage cross bar on one side opposite to the first linkage cross bar and the second linkage cross bar, and two transverse guide rails distributed from top to bottom are fixed to the outside of the connecting support, and the first linkage cross bar and the second linkage cross bar are respectively slidably connected to the two transverse guide rails, and when the first sampling rack and the second sampling rack move closer or farther away, the first linkage cross bar and the second linkage cross bar both move along the distribution direction of the transverse guide rails.

[0013] Furthermore, the bracket is provided with two limit sliders 2 distributed vertically therewith, and the limit slider 2 is slidably connected to the guide arm, the guide arm is an inverted U-shaped structure, and the inner side of one of the legs of the guide arm is connected to the electric gear 2 through a vertically distributed rack. The electric gear 2 is installed on the bracket, and as the electric gear 2 rotates, the guide arm moves up or down along the distribution direction of the limit slider 2.

[0014] The guide arm is fixedly connected to a probe frame, and a water filter plate is provided at the bottom end of the probe frame. When the probe frame moves into the inner side of the first sampling frame and the second sampling frame as the guide arm descends, the soil in the soil liquid is pressed under the water filter plate, and the liquid in the soil liquid passes through the filter holes on the surface of the water filter plate and flows to the top of it.

[0015] Furthermore, a detector is provided on the probe rack, and the detector is located above the water filter plate. When the detector and the water filter plate are moved into the inside of the first sampling rack and the second sampling rack, the detector contacts the liquid above the water filter plate.

[0016] Furthermore, two symmetrically distributed docking column heads are provided on the side of the sewage bucket along its diameter direction, and detachable threaded limit pins are provided on the outside of the extension arms. When the sewage bucket is installed on the inner side of the relative space between the two extension arms, the threaded limit pins pass through the extension arms and are threadedly connected to the docking column heads.

[0017] Furthermore, the two positioning side frames are connected by a support frame at one end close to the second boom. The bottom end of the support frame is provided with a base. The bottom end of the base is fixed with multiple universal wheels. When the first sampling rack and the second sampling rack are raised or lowered, they can move through the inside of the base.

[0018] In summary, the technical effects and advantages of the present invention are:

[0019] 1. The present invention features a first sampling rack and a second sampling rack with adjustable heights. After soil sampling, the soil can be positioned inside the rack for acid and alkali testing. This eliminates the need for additional soil transfer, reducing the time required for soil sample transport and achieving rapid testing. This facilitates rapid testing of soil in outdoor environments and improves portability.

[0020] 2. The present invention includes a drain bucket that can be adjusted in position as the first and second sampling racks move upward and downward. This allows personnel to individually transfer soil samples from the drain bucket without affecting subsequent soil sampling and testing operations, facilitating sample storage and subsequent verification. After the transfer is complete, the empty drain bucket can be reinstalled to receive subsequent soil samples for testing. This system is suitable for soil pH testing of various types of Chinese medicinal materials, improving testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the second viewing angle of the present invention.

[0024] Figure 3 This is a schematic diagram of the state in which the sewage bucket rotates below the first and second sampling racks after they are raised.

[0025] Figure 4 This is a schematic diagram of the internal state of the water filter plate and the detector of the present invention being moved into the first sampling rack and the second sampling rack.

[0026] Figure 5 This is a schematic diagram of the first sampling rack and the second sampling rack of the present invention when they are separated above the sewage barrel.

[0027] Figure 6 This is a schematic diagram of the local structure of the first sampling rack and the second sampling rack when spliced together.

[0028] Figure 7 This is a schematic diagram of the local structure of the first sampling rack and the second sampling rack when they are separated.

[0029] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A in the middle.

[0030] Figure 9 This is a schematic diagram of the local structure of the sewage bucket of the present invention when it rotates to below the first sampling rack and the second sampling rack.

[0031] Figure 10This is a partial structural diagram of the water filter plate and the detector of the present invention when they are moved into the first sampling rack and the second sampling rack.

[0032] In the figure: 1. First sampling rack; 2. Second sampling rack; 3. Connecting bracket; 31. First lifting arm; 32. Second lifting arm; 33. Limiting slide block 1; 34. Horizontal guide rail; 4. Electric gear 1; 5. Linking gear disc; 6. Extension arm; 61. Threaded limiting pin; 7. Drain bucket; 71. Docking column head; 8. Bracket; 9. Positioning side frame; 10. Limiting slide block 2; 11. Guide arm; 12. Electric gear 2; 13. Probe frame; 14. Water filter plate; 15. Detector; 16. First guide cross bar; 17. Second guide cross bar; 18. Electric gear 3; 19. First linkage cross bar; 20. Second linkage cross bar; 21. Sealing strip; 22. Support frame; 23. Base; 24. Universal wheel. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example 1: Reference Figure 1-3 The device, shown here, is a rapid soil pH detection device for Chinese medicinal herb planting. During soil pH testing, the entire device can be moved to the planting area. The device comprises a first sampling rack 1, a second sampling rack 2, and a connecting bracket 3 disposed outside the first and second sampling racks. The connecting bracket 3 has a first boom 31 at its end. The side of the first boom 31 is meshed with an electric gear 4 via a vertically arranged rack. When the electric gear 4 rotates, the first boom 31 moves, thereby driving the connecting bracket 3, the first sampling rack 1, and the second sampling rack 2 to rise or fall synchronously.

[0035] When the electric gear 1-4 rotates, driving the first boom 31, the connecting bracket 3, the first sampling rack 1, and the second sampling rack 2 to descend synchronously, the first sampling rack 1 and the second sampling rack 2 are embedded in the soil to carry out the sampling work. After the sampling work is completed, the electric gear 1-4 rotates in the opposite direction, and the first boom 31, the connecting bracket 3, the first sampling rack 1 and the second sampling rack 2 rise synchronously, so that the first sampling rack 1 and the second sampling rack 2 are separated from the soil after the sampling is completed. The soil can be located inside the first sampling rack 1 and the second sampling rack 2 to undergo acid and alkali testing. The entire process does not require additional soil transfer, which reduces the time required for soil sample transportation operations to achieve the purpose of rapid testing, facilitates rapid testing operations on soil in outdoor environments, and improves the portability of testing work.

[0036] like Figure 3 As shown, a bracket 8 is provided above the connecting bracket 3, and two positioning side frames 9 are provided at the bottom of the bracket 8. The opposite sides of the two positioning side frames 9 are rotatably installed with extension arms 6 that can rotate synchronously. The two extension arms 6 are connected through a sewage bucket 7 at one end away from the positioning side frames 9. One of the extension arms 6 is provided with a linkage gear plate 5 that can rotate synchronously with the linkage gear plate 5. The linkage gear plate 5 is engaged with the electric gear 4, and the linkage gear plate 5 and the first boom 31 are relatively distributed on both sides of the electric gear 4.

[0037] Therefore, when electric gear 1 (4) rotates, causing first boom 31 and connecting bracket 3 to rise synchronously, the linked gear plate 5 and two extension arms 6 also rotate synchronously until the waste bucket 7 falls directly below the first sampling rack 1 and the second sampling rack 2. After the pH test of the soil samples in the first sampling rack 1 and the second sampling rack 2 is completed, the waste bucket 7 can receive the samples, facilitating the transfer of discarded soil samples.

[0038] Therefore, during the sampling and testing process of the first and second sampling racks 1 and 2, when the electric gear 1 drives the first suspension arm 31 and the connecting bracket 3 downward, and the first and second sampling racks 1 and 2 perform the sampling operation, the linkage gear plate 5 and the extension arm 6 can rotate synchronously, offsetting the first and second sampling racks 1 and 2. When the electric gear 1 drives the first suspension arm 31 and the connecting bracket 3 upward, and the first and second sampling racks 1 and 2 carry soil samples and ascend for pH testing, the linkage gear plate 5 and the extension arm 6 can rotate synchronously, aligning with the first and second sampling racks 1 and 2.

[0039] Furthermore, if the first sampling rack 1 and the second sampling rack 2 subsequently need to perform soil pH testing at multiple locations within the Chinese medicinal herb cultivation area, after the wastewater bucket 7 receives the discarded soil sample, the staff can remove the wastewater bucket 7 and transfer the discarded soil sample within. During this process, the first sampling rack 1 and the second sampling rack 2 can continue to perform sampling operations at different locations within the Chinese medicinal herb cultivation area. At this time, since the extension arm 6 has already offset the first sampling rack 1 and the second sampling rack 2, after transferring the discarded soil sample within the wastewater bucket 7, the empty wastewater bucket 7 can be reinstalled at the end of the extension arm 6. When the first sampling rack 1 and the second sampling rack 2 have completed sampling and ascended to receive the soil pH testing operation, the empty wastewater bucket 7 can once again fall below the first sampling rack 1 and the second sampling rack 2 as the linkage gear plate 5 and the extension arm 6 rotate to receive the subsequent soil sample. This entire process does not affect the smooth execution of sampling and testing.

[0040] During the above process, while the sewage barrel 7 receives the discarded soil samples, the staff can also transfer the soil samples in the sewage barrel 7 separately without affecting the subsequent soil sampling and testing operations, so as to facilitate the storage of soil samples and facilitate later review. It is suitable for soil pH testing operations of multiple types of Chinese medicinal materials, and improves the efficiency of the testing operation.

[0041] like Figure 4 As shown, a second arm 32 is provided at the end of the coupling support 3 remote from the first arm 31. Vertically disposed limit sliders 1 33 are provided on the positioning side frames 9. Limit sliders 1 33 are slidably connected to the second arm 32. When the electric gear 1 4 engages the first arm 31 and rises or descends synchronously with the coupling support 3, the second arm 32 moves along the direction of the limit sliders 1 33. The combination of the second arm 32 and the first arm 31 maintains the stability of the coupling support 3 during its ascent and descent, and thus maintains the stability of the first and second sampling racks 1 and 2 during their movement.

[0042] Example 2: In the present invention, as Figure 5-8 As shown, the first sampling rack 1 and the second sampling rack 2 are both composed of a semicircular frame and a semi-conical frame at the bottom. When the first sampling rack 1 and the second sampling rack 2 are connected, the first sampling rack 1 and the second sampling rack 2 form a columnar storage space and an inverted truncated cone storage space distributed from top to bottom. The space contains soil samples, and the pH detection operation of the soil can also be carried out in the space. In order to maintain the airtight state of the first sampling rack 1 and the second sampling rack 2 when spliced together, a sealing strip 21 is provided at the side edge of the first sampling rack 1. When the first sampling rack 1 and the second sampling rack 2 are in the closed state, the sealing strip 21 covers the side edge of the second sampling rack 2, see Figure 7 、 Figure 9 shown.

[0043] Specifically, the ends of the first sampling rack 1 and the second sampling rack 2 are respectively provided with a first guide cross bar 16 and a second guide cross bar 17 , and the connecting bracket 3 is provided with a channel accommodating the movement of the first guide cross bar 16 and the second guide cross bar 17 on one side thereof.

[0044] The first guide cross bar 16 and the second guide cross bar 17 are distributed from top to bottom, and the first guide cross bar 16 and the second guide cross bar 17 are provided with transversely distributed racks on opposite sides. The two racks distributed from top to bottom are meshed and connected with the same electric gear three 18. The electric gear three 18 is located in the relative space between the first guide cross bar 16 and the second guide cross bar 17, and the electric gear three 18 is installed on the outside of the connecting bracket 3. When the electric gear three 18 rotates, the first guide cross bar 16 and the second guide cross bar 17 can move in opposite directions until the first sampling rack 1 and the second sampling rack 2 move closer or move away.

[0045] During the sampling process, before the first sampling rack 1 and the second sampling rack 2 are embedded in the ground, the electric gear 3 18 rotates, and the first guide crossbar 16 and the second guide crossbar 17 respectively carry the first sampling rack 1 and the second sampling rack 2 and move them away, leaving space for soil. After the first sampling rack 1 and the second sampling rack 2 are embedded in the ground and soil is ensured to be present inside them, the electric gear 3 18 rotates in the opposite direction, and the first guide crossbar 16 and the second guide crossbar 17 respectively carry the first sampling rack 1 and the second sampling rack 2 and move them closer, until the first sampling rack 1 and the second sampling rack 2 are tightly connected. At this time, as the electric gear 1 4 rotates, the connecting bracket 3 drives the first sampling rack 1 and the second sampling rack 2 in the closed state to rise, and the sampled soil is successfully separated from the ground and undergoes pH testing after rising.

[0046] When the soil pH is tested, the first sampling rack 1 and the second sampling rack 2 remain closed, and workers can inject water into them to mix with the soil to form soil liquid. After the soil liquid has been allowed to stand for a certain period of time, the pH test can be performed on it.

[0047] After the pH test is completed, the electric gear 3 18 rotates, and the first guide cross bar 16 and the second guide cross bar 17 carry the first sampling rack 1 and the second sampling rack 2 again to move away, and the soil inside them can fall smoothly into the sewage bucket 7 below them, so as to facilitate the transfer operation of the waste soil sample.

[0048] In the above process, the present invention utilizes a combination of the first sampling rack 1 and the second sampling rack 2, which can switch their connection status as needed, adapting to different stages of the sampling and testing process. This provides the advantage of accurate and stable sampling during soil sampling operations. During the testing operation, there is no need to replace the container, which improves the portability of the testing work.

[0049] like Figure 6 As shown, the first and second sampling racks 1 and 2 are each provided with a first linkage crossbar 19 and a second linkage crossbar 20 at one end away from the motorized gear 3 18. A channel is provided on the side of the connecting bracket 3 opposite the first and second linkage crossbars 19 and 20 to accommodate their movement. Two transverse guide rails 34 extending from top to bottom are fixed to the outside of the connecting bracket 3. The first and second linkage crossbars 19 and 20 are slidably connected to the two transverse guide rails 34, respectively. When the first and second sampling racks 1 and 2 move closer or further apart, the first and second linkage crossbars 19 and 20 move along the direction of the transverse guide rails 34. The combination of the first and second linkage crossbars 19 and 20 and the transverse guide rails 34 improves the stability of the first and second sampling racks 1 and 2 during movement, thereby enhancing the tightness of the two during docking.

[0050] Example 3: Figure 10 As shown, the bracket 8 is provided with two limit sliders 10 distributed vertically therewith, and the limit slider 10 is slidably connected to the guide arm 11, which is an inverted U-shaped structure, and the inner side of one of the legs of the guide arm 11 is connected to the electric gear 12 through a vertically distributed rack meshing, and the electric gear 12 is installed on the bracket 8.

[0051] After the soil liquid inside the first sampling rack 1 and the second sampling rack 2 in the closed state has been allowed to stand for a certain period of time, it can be subjected to the pH detection operation. During the operation, as the electric gear 2 12 rotates, the guide arm 11 moves up or down along the distribution direction of the limit slider 2 10. Since the guide arm 11 is fixedly connected to the probe rack 13, a water filter plate 14 is provided at the bottom end of the probe rack 13. Therefore, when the guide arm 11 descends, the probe rack 13 moves into the inside of the first sampling rack 1 and the second sampling rack 2 as the guide arm 11 descends, and the soil in the soil liquid is pressed under the water filter plate 14, and the liquid in the soil liquid passes through the filter holes on the surface of the water filter plate 14 and flows to the top thereof.

[0052] The filter plate 14 effectively filters out the clear liquid within the soil, facilitating subsequent pH testing. It also compacts the soil, preventing small clumps from contaminating the monitoring equipment. Once the pH testing is complete, the compacted soil allows the first sampling rack 1 and the second sampling rack 2 to separate, allowing the soil to quickly fall into the drain tank 7.

[0053] like Figure 9 As shown, a meter 15 is mounted on the probe 13 and positioned above the filter plate 14. When the meter 15 and filter plate 14 are moved into the interior of the first sampling rack 1 and the second sampling rack 2, the meter 15 comes into contact with the liquid above the filter plate 14. The meter 15 in the present invention is a conventional pH meter and is calibrated with standard buffer solutions (pH 4.0, 7.0, and 9.2) before use. After the meter 15 is immersed in the supernatant of the soil solution, the reading is recorded after stabilization.

[0054] like Figure 10 As shown, the side of the sewage bucket 7 is provided with two symmetrically distributed docking studs 71 along its diameter. The extension arms 6 are each provided with a detachable threaded stopper pin 61. When the sewage bucket 7 is installed inside the relative space between the two extension arms 6, the threaded stopper pin 61 passes through the extension arms 6 and is threadedly connected to the docking stud 71. By operating the threaded stopper pin 61, the sewage bucket 7 can be disassembled and assembled, facilitating the transfer of waste soil samples inside the sewage bucket 7 and facilitating the installation of an empty sewage bucket 7.

[0055] like Figure 1 、 Figure 2As shown, the two positioning side frames 9 are connected by a support frame 22 at one end near the second boom 32. A base 23 is provided at the bottom end of the support frame 22, and a plurality of universal wheels 24 are fixed to the bottom end of the base 23. When the first sampling rack 1 and the second sampling rack 2 are raised or lowered, they can move inside the base 23. The combination of the support frame 22, base 23, and universal wheels 24 facilitates the movement of the entire detection device of the present invention to a desired location, improving its portability.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rapid detection device for soil pH for Chinese medicinal material planting, characterized by: The invention comprises a first sampling frame (1), a second sampling frame (2) and a connecting bracket (3) arranged outside the first and second sampling frames, wherein the end of the connecting bracket (3) is provided with a first hanging arm (31), and the side of the first hanging arm (31) is connected to an electric gear 1 (4) through a vertically distributed rack meshing. When the electric gear 1 (4) rotates, the first hanging arm (31), the connecting bracket (3), the first sampling frame (1) and the second sampling frame (2) can move up or down synchronously; when the first sampling frame (1) and the second sampling frame (2) are lowered, they can be embedded in the soil to perform sampling work; A bracket (8) is provided above the connecting bracket (3), and two positioning side frames (9) are provided at the bottom of the bracket (8). The opposite sides of the two positioning side frames (9) are rotatably mounted with extension arms (6) that can rotate synchronously. The ends of the two extension arms (6) away from the positioning side frames (9) are connected through a sewage bucket (7). One of the extension arms (6) is provided with a linkage gear disk (5) that can rotate synchronously therewith. The linkage gear disk (5) is engaged with the electric gear 1 (4), and the linkage gear disk (5) and the first suspension arm (31) are relatively distributed on both sides of the electric gear 1 (4). When the electric gear 1 (4) rotates and the first suspension arm (31) and the connecting bracket (3) rise synchronously, the linkage gear disk (5) and the two extension arms (6) rotate synchronously until the sewage bucket (7) falls directly below the first sampling rack (1) and the second sampling rack (2). The bracket (8) is provided with two limit sliders (10) vertically distributed therewith, and the limit sliders (10) are slidably connected to the guide arms (11), the guide arms (11) are in an inverted U-shaped structure, and the inner side of one of the legs of the guide arms (11) is connected to the electric gear (12) through a vertically distributed rack meshing, and the electric gear (12) is installed on the bracket (8). As the electric gear (12) rotates, the guide arms (11) move up or down along the distribution direction of the limit sliders (10); The guide arm (11) is fixedly connected to a probe frame (13), and a water filter plate (14) is provided at the bottom end of the probe frame (13). When the probe frame (13) moves into the inner side of the first sampling frame (1) and the second sampling frame (2) as the guide arm (11) descends, the soil in the soil liquid is pressed under the water filter plate (14), and the liquid in the soil liquid passes through the filter holes on the surface of the water filter plate (14) and flows to the top thereof; The probe frame (13) is provided with a detector (15).

2. The rapid detection device for soil pH for Chinese medicinal material planting according to claim 1, characterized in that: The connecting bracket (3) is provided with a second boom (32) at one end away from the first boom (31), and the positioning side frame (9) is provided with a vertically distributed limit slider (33). The limit slider (33) is slidably connected to the second boom (32). When the electric gear (4) engages the first boom (31) and moves synchronously with the connecting bracket (3) to rise or fall, the second boom (32) moves along the distribution direction of the limit slider (33).

3. The rapid detection device for soil pH for Chinese medicinal material planting according to claim 1, characterized in that: The first sampling rack (1) and the second sampling rack (2) are both composed of a semicircular rack body and a semi-conical rack body located at the bottom end thereof. When the first sampling rack (1) and the second sampling rack (2) are connected to each other, the first sampling rack (1) and the second sampling rack (2) form a columnar accommodation space and an inverted truncated cone accommodation space distributed from top to bottom. A sealing strip (21) is provided at the side edge of the first sampling rack (1); when the first sampling rack (1) and the second sampling rack (2) are in a closed state, the sealing strip (21) covers the side edge of the second sampling rack (2).

4. The rapid detection device for soil pH for Chinese medicinal material planting according to claim 1, characterized in that: The ends of the first sampling rack (1) and the second sampling rack (2) are respectively provided with a first guide cross bar (16) and a second guide cross bar (17), and the connecting bracket (3) is provided with a channel for accommodating the movement of the first guide cross bar (16) and the second guide cross bar (17) on one side thereof; The first guide cross bar (16) and the second guide cross bar (17) are distributed from top to bottom, and the first guide cross bar (16) and the second guide cross bar (17) are provided with transversely distributed racks on opposite sides. The two racks distributed from top to bottom are meshed and connected with the same electric gear three (18). The electric gear three (18) is located in the relative space between the first guide cross bar (16) and the second guide cross bar (17), and the electric gear three (18) is installed on the outside of the connecting bracket (3). When the electric gear three (18) rotates, the first guide cross bar (16) and the second guide cross bar (17) can move in opposite directions until the first sampling rack (1) and the second sampling rack (2) move closer or move away.

5. The rapid detection device for soil pH for Chinese medicinal material planting according to claim 4, characterized in that: The first sampling rack (1) and the second sampling rack (2) are respectively provided with a first linkage cross bar (19) and a second linkage cross bar (20) at one end away from the electric gear three (18); the connecting bracket (3) is provided with a channel for accommodating the movement of the first linkage cross bar (19) and the second linkage cross bar (20) on one side thereof; two transverse guide rails (34) distributed from top to bottom are fixed to the outside of the connecting bracket (3); the first linkage cross bar (19) and the second linkage cross bar (20) are respectively slidably connected to the two transverse guide rails (34); when the first sampling rack (1) and the second sampling rack (2) move closer to or farther away from each other, the first linkage cross bar (19) and the second linkage cross bar (20) both move along the distribution direction of the transverse guide rails (34).

6. The rapid detection device for soil pH for Chinese medicinal material planting according to claim 1, characterized in that: The detector (15) is located above the water filter plate (14). When the detector (15) and the water filter plate (14) are moved into the inner side of the first sampling rack (1) and the second sampling rack (2), the detector (15) contacts the liquid above the water filter plate (14).

7. The rapid detection device for soil pH for Chinese medicinal material planting according to claim 1, characterized in that: The side of the sewage bucket (7) is provided with two symmetrically distributed docking studs (71) along its diameter direction, and the outside of the extension arms (6) is provided with detachable threaded limit pins (61). When the sewage bucket (7) is installed inside the relative space between the two extension arms (6), the threaded limit pins (61) pass through the extension arms (6) and are threadedly connected to the docking studs (71).

8. The rapid detection device for soil pH for Chinese medicinal material planting according to claim 1, characterized in that: The two positioning side frames (9) are connected at one end close to the second suspension arm (32) through a support frame (22). The bottom end of the support frame (22) is provided with a base (23). The bottom end of the base (23) is fixed with a plurality of universal wheels (24). When the first sampling frame (1) and the second sampling frame (2) are raised or lowered, they can move through the inside of the base (23).

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