A device for detecting the acidity and alkalinity of shallow planting soil in gardens

Abstract

This invention relates to the field of garden soil testing technology, specifically a device for testing the acidity and alkalinity of shallow planting soil in gardens. The device includes a frame; a mounting plate; a collection tube; multiple dilution tanks; a collection structure mounted on the frame, capable of moving the collection tube closer to and deeper into the soil surface, and transferring soil upwards during the process; a collection structure, including a collection tray mounted on the mounting plate; and a detection structure, including a detection module. The collection structure allows for relatively easy and efficient soil collection; the collection process causes minimal damage to the soil surface, facilitating subsequent backfilling; the collection structure enables the collection of soil samples from different depths, reducing the limitations of testing mixed or single-depth samples; and the analysis of multiple test results reveals the acidity and alkalinity changes of shallow soil along the depth direction, which is beneficial for subsequent researchers in rational plant cultivation.

Description

Technical Field

[0001] This invention relates to the field of garden soil testing technology, specifically a device for testing the acidity and alkalinity of shallow planting soil in gardens. Background Technology

[0002] The significance of soil pH testing for shallow planting in gardens lies primarily in the following aspects: **Matching suitable crop varieties:** Different garden plants have specific pH requirements. For example, tea trees prefer acidic soil (pH 4-5), while some alkali-tolerant plants (such as sugar beets) thrive in an environment with a pH of 7.5-8. Accurate testing helps select suitable varieties, avoiding growth limitations caused by pH mismatch. **Optimizing nutrient availability:** Soil pH directly affects the solubility and availability of nutrients. **Maintaining microbial ecology:** Soil microorganisms (such as nitrifying bacteria) exhibit optimal activity at pH 6.5-7.5. pH imbalance inhibits microbial reproduction, leading to nitrogen cycle disruption and consequently affecting plant health. Test results can guide soil improvement and maintain ecological balance.

[0003] A common device for testing the acidity and alkalinity of shallow planting soil in gardens is a pH meter. When using it, a soil sample is first collected, then the soil is diluted and tested by the meter to obtain a specific acidity or alkalinity value.

[0004] Common soil sampling involves digging soil samples at testing points using tools. There are generally two methods: Method 1: Digging a soil sample at a certain depth, mixing the samples, and then testing the mixed sample with a testing instrument to obtain the average soil pH at that depth. Method 2: Digging a soil sample at a specific depth and testing that specific sample to obtain the soil pH value at that depth. However, because different garden plants are planted at different depths (due to varying root depths), measuring the average pH of shallow soil or the pH value at a specific depth has limitations. It cannot determine the pH variation of shallow soil along depth, which may lead to a mismatch between the pH of the soil around the plant roots and the plant itself, potentially hindering plant growth. Summary of the Invention

[0005] The purpose of this invention is to provide a device for detecting the acidity and alkalinity of shallow planting soil in gardens, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A device for detecting the acidity and alkalinity of shallow planting soil in gardens includes a frame; multiple sets of guide rods are fixedly installed on the frame; and mounting plates are slidably fitted onto the guide rods.

[0008] It also includes a collection cylinder and multiple dilution tanks fixedly installed on the mounting plate; a discharge pipe is fixedly installed on the collection cylinder.

[0009] A collection structure is mounted on the vehicle frame. The collection structure can drive the collection tube to approach and penetrate the ground surface, and can transfer soil upwards during the penetration process.

[0010] The collection structure includes a collection tray mounted on the mounting plate; the collection tray is rotatable to dispose of the collected soil into multiple sets of dilution tanks according to the collection depth.

[0011] The detection structure includes a detection module that is fixedly mounted on the mounting plate for detecting soil.

[0012] As a further aspect of the present invention: the acquisition structure includes a connecting plate fixedly installed on the acquisition cylinder, and a threaded sleeve fixedly installed on the connecting plate; a motor is fixedly installed on the frame, and a lead screw threadedly connected to the threaded sleeve is fixedly installed on the output end of the motor.

[0013] As a further embodiment of the present invention: the acquisition structure further includes an acquisition shaft rotatably installed inside the acquisition cylinder, on which a spiral fan blade is fixedly installed; a small pulley is fixedly installed at one end of the acquisition shaft; a large pulley is rotatably installed on the connecting plate and sleeved with the lead screw column; a slider is fixedly installed on the large pulley; a sliding groove is provided on the lead screw column to slide and engage with the slider; the large pulley and the small pulley are connected by a belt.

[0014] As a further embodiment of the present invention: the collection structure further includes a fixed column fixedly installed on the vehicle frame; a rotating sleeve rotatably installed on the mounting plate and sleeved with the fixed column; multiple sets of communicating grooves are formed on the fixed column; a protruding column slidably fitted into the grooves is fixedly installed inside the rotating sleeve; a guide plate is fixedly installed on the rotating sleeve; multiple sets of slots are formed on the guide plate; the guide plate is rotatably connected to the collection tray, and a collection tube that abuts against the guide plate is fixedly installed on the collection tray.

[0015] As a further embodiment of the present invention: the groove group includes a vertical groove and an inclined groove; wherein one end of the vertical groove is connected to one end of the inclined groove; the other end of the vertical groove is connected to one end of the inclined groove in another group of the groove groups; and the other end of the inclined groove is connected to one end of the vertical groove in another group of the groove groups.

[0016] As a further embodiment of the present invention: the collecting structure further includes multiple sets of telescopic sleeves fixedly installed on the collecting tray; a telescopic column is slidably installed inside the telescopic sleeve, and a spring is provided inside the telescopic sleeve, with both ends of the spring abutting against the telescopic column and the telescopic sleeve respectively; a first fixing plate and a second fixing plate are fixedly installed on the collecting tray and the guide plate respectively; a hinge rod is rotatably installed on the first fixing plate and the second fixing plate respectively, and multiple sets of the hinge rods are rotatably installed on the telescopic column; a fixing plate is fixedly installed on the collecting tray, and a limiting groove is formed on the fixing plate; a limiting column that slidably engages with the limiting groove is fixedly installed on the connecting plate.

[0017] As a further embodiment of the present invention: the detection structure further includes a suction module fixedly installed on the vehicle frame, and the two ends of the suction module are respectively connected to multiple sets of dilution tanks and the detection module.

[0018] As a further embodiment of the present invention: a filter module is fixedly installed inside the dilution tank, and the filter module has multiple sets of filter holes.

[0019] As a further embodiment of the present invention, a soil-receiving plate is fixedly installed on the collection tray.

[0020] As a further embodiment of the present invention: a cone is fixedly installed at the other end of the acquisition shaft.

[0021] Compared with existing technologies, the beneficial effects of this invention are: soil collection can be completed relatively easily through the collection structure, with high collection efficiency; the collection process causes less damage to the ground surface, which is beneficial for subsequent backfilling; through the classified collection of the collection structure, soil samples at different depths can be obtained, thereby reducing the limitations of the values ​​obtained from testing mixed samples or samples at a single depth; the accuracy of subsequent test results is improved; by analyzing multiple test results, the pH changes of shallow soil in the direction of increasing depth can be obtained; and it is beneficial for subsequent researchers to carry out reasonable plant cultivation. Attached Figure Description

[0022] Figure 1 A schematic diagram of one embodiment of a soil acidity / alkalinity testing device for shallow planting in gardens.

[0023] Figure 2 This is a schematic diagram of another embodiment of a soil acidity / alkalinity testing device for shallow planting in gardens.

[0024] Figure 3 This is a schematic diagram of the mounting plate in one embodiment of a soil acidity / alkalinity testing device for shallow planting in gardens.

[0025] Figure 4A schematic diagram of the spiral fan blade structure in one embodiment of a soil acidity / alkalinity testing device for shallow planting in gardens.

[0026] Figure 5 This is a schematic diagram of the sampling tube in one embodiment of a soil acidity / alkalinity testing device for shallow planting in gardens.

[0027] Figure 6 for Figure 5 A schematic diagram of the structure at point A in the middle.

[0028] Figure 7 A schematic diagram of the collection tray structure in one embodiment of a soil acidity / alkalinity testing device for shallow planting in gardens.

[0029] Figure 8 for Figure 7 A schematic diagram of the structure at point B.

[0030] Figure 9 A schematic diagram of the rotating sleeve in one embodiment of a soil acidity / alkalinity testing device for shallow planting in gardens.

[0031] Figure 10 A schematic diagram of the hinged rod in one embodiment of a soil acidity / alkalinity testing device for shallow planting in gardens.

[0032] Figure 11 A schematic diagram of the dilution tank in one embodiment of a soil acidity / alkalinity testing device for shallow planting in gardens.

[0033] Figure 12 for Figure 11 A schematic diagram of the structure at point C.

[0034] In the diagram: 1. Chassis; 101. Guide rod;

[0035] 2. Mounting plate;

[0036] 3. Collection cylinder; 301. Discharge pipe;

[0037] 4. Connecting plate; 401. Threaded sleeve;

[0038] 5. Acquisition axis;

[0039] 6. Spiral fan blades;

[0040] 7. Electric motor;

[0041] 8. Lead screw; 801. Slide groove

[0042] 9. Large pulley; 901. Sliding block;

[0043] 10. Small pulley;

[0044] 11. Collection tray; 1101. Collection tube; 1102. Soil receiving plate; 1103. First fixing plate;

[0045] 12. Fixed plate; 1201. Limiting groove;

[0046] 13. Conductor plate; 1301. Groove; 1302. Second fixing plate;

[0047] 14. Rotate the sleeve; 1401. Protruding post;

[0048] 15. Fixed column; 1501. Vertical groove; 1502. Inclined groove;

[0049] 16. Hinge rod;

[0050] 17. Telescopic bollards;

[0051] 18. Spring;

[0052] 19. Telescopic sleeve;

[0053] 20. Dilution tank;

[0054] 21. Suction module;

[0055] 22. Detection Module

[0056] 23. Filter module; 2301. Filter port;

[0057] 24. Limiting post. Detailed Implementation

[0058] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0060] Please see Figures 1-12In this embodiment of the invention, a soil acidity and alkalinity testing device for shallow planting in gardens includes a frame 1; multiple sets of guide rods 101 are fixedly installed on the frame 1; and mounting plates 2 are slidably fitted onto the guide rods 101.

[0061] It also includes a collection cylinder 3 and multiple dilution tanks 20 that are fixedly installed on the mounting plate 2; a discharge pipe 301 is fixedly installed on the collection cylinder 3.

[0062] A collection structure is mounted on the vehicle frame 1. The collection structure can drive the collection cylinder 3 to approach and penetrate the ground surface, and can transfer soil upwards during the penetration process.

[0063] The collection structure includes a collection tray 11 mounted on the mounting plate 2; the collection tray 11 is rotatable to dispose of the collected soil into multiple dilution tanks 20 according to the collection depth.

[0064] The detection structure includes a detection module 22 that is fixedly installed on the mounting plate 2 for detecting soil.

[0065] Taking the embodiment combining all the features described in this application as an example, when in use, the detection device can be easily transferred to the outdoor detection point by means of the mobile frame 1, which can effectively reduce the difficulty of collection and improve convenience.

[0066] After cleaning the surface of the testing point of dead branches and debris, the sampling tube 3 is vertically aligned with the testing point by moving the frame 1, and the device is started to conduct soil testing;

[0067] Collection phase: The collection structure moves, causing the collection tube 3 to approach the ground vertically and insert into the shallow soil; it also transports the soil upwards along the height of the collection tube 3; thus collecting soil samples from a certain depth in the shallow soil; the collection structure can easily complete the soil collection with high efficiency; the collection process causes less damage to the ground surface, which is beneficial for subsequent backfilling.

[0068] Collection Phase: During the collection structure's operation, the soil in the collection tube 3 is transferred to the collection tray 11 through the discharge pipe 301. During the collection process, the collection tray 11 rotates intermittently to classify and collect the soil according to different collection depths. When the collection structure completes its collection action, it simultaneously places soil samples from different depths into different dilution tanks 20 for dilution. Through the classified collection by the collection structure, soil samples from different depths can be obtained, thereby reducing the limitations of values ​​obtained from testing mixed samples or samples from a single depth and improving the accuracy of subsequent test results.

[0069] Detection phase: The detection module 22 detects the pH of diluted samples in multiple dilution tanks 20, and obtains multiple sets of pH values. By analyzing the multiple detection results, the pH changes of shallow soil in the direction of increasing depth can be obtained, which is beneficial for subsequent researchers to carry out reasonable plant cultivation.

[0070] In another embodiment of the present invention, the acquisition structure includes a connecting plate 4 fixedly installed on the acquisition cylinder 3, and a threaded sleeve 401 fixedly installed on the connecting plate 4; a motor 7 is fixedly installed on the frame 1, and a lead screw 8 threadedly connected to the threaded sleeve 401 is fixedly installed on the output end of the motor 7.

[0071] Taking the embodiment combining all the features described in this application as an example, when in use, after the collection tube 3 is vertically aligned with the detection point, the motor 7 is started, thereby driving the lead screw 8 to rotate.

[0072] The rotating lead screw 8 drives the threaded sleeve 401 to move downward along the length of the lead screw 8 through the threaded engagement, thereby driving the connecting plate 4, the collection cylinder 3 and the mounting plate 2 to move downward, so that the collection cylinder 3 can approach and penetrate into the soil; through the threaded engagement between the lead screw 8 and the threaded sleeve 401, soil collection can be carried out with less effort and the collection process is relatively stable, thereby reducing the impact on the soil layer around the detection point.

[0073] In another embodiment of the present invention, the acquisition structure further includes an acquisition shaft 5 rotatably mounted inside the acquisition cylinder 3, a spiral fan blade 6 fixedly mounted on the acquisition shaft 5; a small pulley 10 fixedly mounted on one end of the acquisition shaft 5; a large pulley 9 rotatably mounted on the connecting plate 4 and sleeved with the lead screw column 8; a slider 901 fixedly mounted on the large pulley 9; a sliding groove 801 is provided on the lead screw column 8 to slide and engage with the slider 901; the large pulley 9 and the small pulley 10 are connected by a belt.

[0074] Taking the embodiment combining all the features described in this application as an example, during use, as the collecting cylinder 3 moves downward, the slider 901 moves synchronously in the slide groove 801, and through the squeezing action of the slide groove 801 on the slider 901, the lead screw 8 drives the large pulley 9 to rotate, thereby driving the small pulley 10 to rotate through the belt, thereby driving the collecting shaft 5 to rotate, thereby driving the spiral fan blade 6 to rotate.

[0075] When the spiral fan blade 6 rotates, it can break up and crush the soil, which facilitates subsequent testing and reduces the impact of grass roots, stones and other debris on the collection process. The loose soil in the collection cylinder 3 will move upward along the surface of the spiral fan blade 6 and be discharged outward through the discharge pipe 301.

[0076] Soil collection can be completed relatively easily and efficiently using the collection structure; the collection process causes minimal damage to the surface, which is beneficial for subsequent backfilling.

[0077] In another embodiment of the present invention, the collection structure further includes a fixed post 15 fixedly installed on the frame 1; a rotating sleeve 14 rotatably installed on the mounting plate 2 and sleeved with the fixed post 15; multiple sets of communicating grooves are provided on the fixed post 15; a protruding post 1401 slidably fitted with the grooves is fixedly installed inside the rotating sleeve 14; a guide plate 13 is fixedly installed on the rotating sleeve 14; multiple sets of slots 1301 are provided on the guide plate 13; the guide plate 13 is rotatably connected to the collection tray 11, and a collection tube 1101 that abuts against the guide plate 13 is fixedly installed on the collection tray 11.

[0078] In another embodiment of the present invention, the groove group includes a vertical groove 1501 and an inclined groove 1502; wherein one end of the vertical groove 1501 is connected to one end of the inclined groove 1502; the other end of the vertical groove 1501 is connected to one end of the inclined groove 1502 in another group of the groove groups; and the other end of the inclined groove 1502 is connected to one end of the vertical groove 1501 in another group of the groove groups.

[0079] Taking the embodiment combining all the features described in this application as an example, in the initial state, the slot 1301 and the collection tube 1101 are misaligned, that is, the bottom of the collection tube 1101 abuts against the guide plate 13, thereby making the collection tube 1101 in a blocked state. And the end of the discharge pipe 301 is matched with the top of the collection tube 1101.

[0080] During the collection process, the mounting plate 2 moves closer to the frame 1, causing the fixed column 15 to slide inward within the rotating sleeve 14, so that the protruding column 1401 slides into the multiple sets of grooves.

[0081] When the protruding column 1401 slides in the vertical groove 1501, the rotating sleeve 14 is stationary. At this time, the soil collected in the collection cylinder 3 will be discharged from the discharge pipe 301 into the collection pipe 1101.

[0082] When the protruding column 1401 slides in the inclined groove 1502, the squeezing action of the groove wall on the protruding column 1401 can drive the rotating sleeve 14 to rotate, thereby driving the collecting plate 11 to rotate through the guide plate 13; thus causing the collecting pipe 1101 to disengage from the discharge pipe 301; and when the protruding column 1401 slides into another vertical groove 1501, the collecting plate 11 stops rotating, and at this time the other collecting pipe 1101 will re-engage with the discharge pipe 301.

[0083] Through the sliding fit between the protruding column 1401 and multiple slots, the collection tray 11 can be driven to rotate intermittently when the collection structure moves; that is, multiple collection tubes 1101 can sequentially receive soil samples discharged from the discharge pipe 301.

[0084] Furthermore, once the end collection tube 1101 is aligned with the discharge pipe 301, the guide plate 13 will be unable to drive the collection tray 11 to rotate. Subsequently, the downward-moving mounting plate 2 will drive the protruding column 1401 to slide in the inclined groove 1502 in the last set of grooves, thereby driving the guide plate 13 to rotate. This will cause the groove opening 1301 to rotate and approach the collection tube 1101, thereby gradually opening the collection tube 1101 so that soil samples from multiple collection tubes 1101 can be simultaneously placed into different dilution tanks 20.

[0085] By rotating the collection tray 11, different collection tubes 1101 are used to collect soil. During the collection process, the soil falls onto the collection tubes 1101 and the collection tray 11, which can effectively reduce the cleaning cost of the device later. During the soil classification and collection process, the dilution tank 20 remains stationary, which can effectively prevent the pipeline connecting the dilution tank 20 and the detection module 22 from becoming loose.

[0086] By collecting soil samples from different depths through structural classification, the limitations of numerical results obtained from testing mixed or single-depth samples can be reduced, thereby improving the accuracy of subsequent testing results.

[0087] In another embodiment of the present invention, the collecting structure further includes multiple sets of telescopic sleeves 19 fixedly installed on the collecting tray 11; a telescopic column 17 is slidably installed inside the telescopic sleeve 19, and a spring 18 is provided inside the telescopic sleeve 19, with both ends of the spring 18 abutting against the telescopic column 17 and the telescopic sleeve 19 respectively; a first fixing plate 1103 and a second fixing plate 1302 are fixedly installed on the collecting tray 11 and the guide plate 13 respectively; a hinge rod 16 is rotatably installed on the first fixing plate 1103 and the second fixing plate 1302 respectively, and multiple sets of the hinge rods 16 are rotatably installed on the telescopic column 17; a fixing plate 12 is fixedly installed on the collecting tray 11, and a limiting groove 1201 is formed on the fixing plate 12; a limiting column 24 that slides into the limiting groove 1201 is fixedly installed on the connecting plate 4.

[0088] Taking the embodiment combining all the features described in this application as an example, when in use, the protruding post 1401 slides in the inclined groove 1502, which will drive the guide plate 13 to rotate.

[0089] In the initial state, the spring 18 has a certain amount of compression, and its elastic force acts on the first fixed plate 1103 and the second fixed plate 1302, so that when the guide plate 13 rotates, it can drive the collection plate 11 to rotate synchronously, thereby changing different collection tubes 1101 to collect soil.

[0090] During this process, the rotating collection plate 11 will drive the fixed plate 12 to rotate synchronously, thereby causing the limiting post 24 to slide from one end to the other in the limiting groove 1201.

[0091] When the collection pipe 1101 at the end is aligned with the discharge pipe 301, the limiting post 24 slides to the end of the limiting groove 1201, at which point the limiting post 24 abuts against the limiting groove 1201; thus preventing the fixed plate 12 from continuing to rotate, thereby limiting the collection plate 11.

[0092] When the protruding post 1401 slides in the inclined groove 1502 in the last set of grooves, it will drive the guide plate 13 to continue to rotate. At this time, the rotating guide plate 13 will drive the second fixed plate 1302 to approach the first fixed plate 1103. During this process, the hinge rod 16 will rotate, thereby pushing the telescopic post 17 to slide inward in the telescopic sleeve 19 and compress the spring 18.

[0093] During this process, the slot 1301 will gradually rotate and approach the collection tube 1101; and when the collection structure moves to the end of its stroke, the slot 1301 will be completely aligned with the collection tube 1101, and the soil samples in the multiple collection tubes 1101 will be simultaneously placed into multiple sets of dilution tanks 20.

[0094] By collecting soil samples from different depths through structural classification, the limitations of numerical results obtained from testing mixed or single-depth samples can be reduced, thereby improving the accuracy of subsequent testing results.

[0095] In another embodiment of the present invention, the detection structure further includes a suction module 21 fixedly installed on the frame 1, and the two ends of the suction module 21 are respectively connected to multiple sets of dilution tanks 20 and detection module 22.

[0096] Taking the embodiment combining all the features described in this application as an example, during use, the suction module 21 will extract the test samples from the dilution tank 20 and discharge them onto different detection modules 22, thereby testing the soil. By using the detection module 22 to test the pH of the diluted samples in multiple dilution tanks 20, multiple sets of pH values ​​can be obtained; by analyzing multiple test results, the pH changes of shallow soil in the direction of increasing depth can be obtained; this is beneficial for subsequent researchers to carry out reasonable plant cultivation.

[0097] In another embodiment of the present invention, a filter module 23 is fixedly installed inside the dilution tank 20, and the filter module 23 has multiple sets of filter holes 2301.

[0098] Taking the embodiment combining all the features described in this application as an example, when in use, the filter module 23 can filter the diluent, thereby preventing foreign objects such as dead branches and stones from the soil sample from flowing into the suction module 21, thereby improving the service life of the device; the soil sample diluent will flow to the detection module 22 through the filter hole 2301.

[0099] In another embodiment of the present invention, a soil receiving plate 1102 is fixedly installed on the collecting tray 11.

[0100] Taking the embodiment combining all the features described in this application as an example, when in use, the soil receiving plate 1102 is set at an angle; therefore, after the soil sample discharged from the discharge pipe 301 slides onto the soil receiving plate 1102, it can automatically slide into the collection tray 11 or the collection tube 1101; this can avoid soil sample mixing, thereby improving the accuracy of the test results.

[0101] In another embodiment of the present invention, a truncated cone is fixedly installed at the other end of the acquisition shaft 5.

[0102] Taking the embodiment combining all the features described in this application as an example, when used, the cone can reduce the resistance to breaking the soil, thereby improving the efficiency of collection and detection.

[0103] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0104] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A soil acidity / alkalinity testing device for shallow planting in gardens, comprising a frame (1); a plurality of guide rods (101) are fixedly installed on the frame (1); and a mounting plate (2) is slidably fitted onto the guide rods (101). Its features are, It also includes a collection cylinder (3) and multiple dilution tanks (20) fixedly installed on the mounting plate (2); a discharge pipe (301) is fixedly installed on the collection cylinder (3); The collection structure is set on the vehicle frame (1). The collection structure can drive the collection tube (3) to approach and penetrate the ground surface, and can transfer soil upward during the penetration process. The collection structure includes a collection tray (11) disposed on the mounting plate (2); the collection tray (11) is rotatable to dispose of the collected soil into multiple dilution tanks (20) according to the collection depth. Detection structure; Includes a detection module (22) that is fixedly installed on the mounting plate (2) for soil testing; The acquisition structure includes a connecting plate (4) fixedly installed on the acquisition cylinder (3), and a threaded sleeve (401) fixedly installed on the connecting plate (4); a motor (7) is fixedly installed on the frame (1), and a lead screw (8) that is threadedly connected to the threaded sleeve (401) is fixedly installed on the output end of the motor (7). The collection structure also includes a fixed post (15) fixedly installed on the frame (1); a rotating sleeve (14) rotatably installed on the mounting plate (2) and sleeved with the fixed post (15); multiple sets of communicating grooves are opened on the fixed post (15); a protruding post (1401) slidably fitted with the grooves is fixedly installed inside the rotating sleeve (14); a guide plate (13) is fixedly installed on the rotating sleeve (14); multiple sets of slots (1301) are opened on the guide plate (13); the guide plate (13) is rotatably connected to the collection tray (11), and a collection tube (1101) that abuts against the guide plate (13) is fixedly installed on the collection tray (11). The groove group includes a vertical groove (1501) and an inclined groove (1502); one end of the vertical groove (1501) is connected to one end of the inclined groove (1502); the other end of the vertical groove (1501) is connected to one end of the inclined groove (1502) in another group of the groove group; the other end of the inclined groove (1502) is connected to one end of the vertical groove (1501) in another group of the groove group.

2. The soil pH testing device for shallow planting in gardens according to claim 1, characterized in that, The collection structure also includes a collection shaft (5) rotatably installed inside the collection cylinder (3), and a spiral fan blade (6) is fixedly installed on the collection shaft (5); a small pulley (10) is fixedly installed on one end of the collection shaft (5); a large pulley (9) that is sleeved with the lead screw column (8) is rotatably installed on the connecting plate (4); a slider (901) is fixedly installed on the large pulley (9); a sliding groove (801) is opened on the lead screw column (8) to slide and fit with the slider (901); the large pulley (9) and the small pulley (10) are connected by a belt.

3. The soil acidity / alkalinity testing device for shallow planting in gardens according to claim 2, characterized in that, The collecting structure also includes multiple sets of telescopic sleeves (19) fixedly installed on the collecting tray (11); a telescopic column (17) is slidably installed inside the telescopic sleeve (19), and a spring (18) is provided inside the telescopic sleeve (19), with the two ends of the spring (18) respectively abutting against the telescopic column (17) and the telescopic sleeve (19); a first fixing plate (1103) and a second fixing plate are fixedly installed on the collecting tray (11) and the guide plate (13) respectively. (1302); Hinges (16) are rotatably mounted on the first fixing plate (1103) and the second fixing plate (1302), and multiple sets of hinges (16) are rotatably mounted on the telescopic column (17); a fixing plate (12) is fixedly mounted on the collecting plate (11), and a limiting groove (1201) is opened on the fixing plate (12); a limiting column (24) is fixedly mounted on the connecting plate (4) and slides into the limiting groove (1201).

4. The soil acidity / alkalinity testing device for shallow planting in gardens according to claim 1, characterized in that, The detection structure also includes a suction module (21) fixedly installed on the frame (1), and the two ends of the suction module (21) are respectively connected to multiple sets of dilution tanks (20) and detection modules (22).

5. The soil acidity / alkalinity testing device for shallow planting in gardens according to claim 4, characterized in that, A filter module (23) is fixedly installed inside the dilution tank (20), and the filter module (23) has multiple sets of filter holes (2301).

6. The soil acidity / alkalinity testing device for shallow planting in gardens according to claim 1, characterized in that, A soil receiving plate (1102) is fixedly installed on the collection tray (11).

7. The soil acidity / alkalinity testing device for shallow planting in gardens according to claim 3, characterized in that, A cone is fixedly installed at the other end of the acquisition shaft (5).

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