Soil sampling device for saline-alkali soil improvement

Abstract

The invention is applicable to the technical field of soil improvement, and provides a soil sampling device for saline-alkali soil improvement, which comprises a base, and a mounting shell is arranged on the base; the sampling barrel is arranged in the mounting shell and can be adjusted in a lifting manner; the walking wheel is assembled on one side of the mounting shell through a first mounting frame and is used for moving; the handle frame is fixed on the mounting shell and is used for grasping; the soil collecting and conveying mechanism is arranged on the sampling barrel and is used for drilling soil, collecting and conveying the soil; the collecting mechanism is arranged on the mounting shell and is used for receiving and collecting the collected soil sample. According to the soil sampling device for saline-alkali soil improvement, through cooperative work of the collecting mechanism, the soil collecting and conveying mechanism and the like, the problem that samples are inconvenient to collect during soil sampling is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of soil improvement, and particularly relates to a soil sampling device for saline-alkali land improvement. Background Technique

[0002] Soil sampling, as a crucial preliminary step in soil research, plays an irreplaceable role in deeply exploring the physical and chemical properties, nutrient composition, pollution status, etc. of the soil. In the research field of saline-alkali land improvement, obtaining representative soil samples and conducting comprehensive and accurate analysis on them are important prerequisites for formulating scientific and effective improvement plans.

[0003] Currently, the soil sampling device disclosed in the existing authorized patent number CN108918179B has achieved remarkable results in sampling accuracy and stability. The device uses four sets of telescopic rods to position the transmission cavity to achieve vertical sampling and improve sampling accuracy; the conical protrusions increase the friction between the device and the ground and enhance stability; the material blocking mechanism improves the soil excavation rate, but the device is extremely inconvenient when collecting soil samples and urgently needs improvement. Summary of the Invention

[0004] The present invention provides a soil sampling device for saline-alkali land improvement, aiming to solve the problem that the current soil sampling device is inconvenient for collecting soil as proposed in the above background technique.

[0005] To solve the above problems, the present invention is implemented as follows. A soil sampling device for saline-alkali land improvement includes: a base, an installation shell is provided on the base; a sampling cylinder that can be adjusted in height and lowered in the installation shell; traveling wheels for moving, which are assembled on one side of the installation shell through a first mounting frame; a handle frame fixed on the installation shell for gripping; a soil collection and transmission mechanism, which is arranged on the sampling cylinder and is used for drilling soil, collecting, and transporting the soil; a collection mechanism, which is arranged on the installation shell and is used for receiving and collecting the collected soil samples; a driving mechanism, which is arranged on the installation shell and is used for driving the operation of the soil collection and transmission mechanism; a lifting mechanism, which is arranged in the installation shell and is used for regulating the lifting of the sampling cylinder.

[0006] Preferably, the soil collection and transmission mechanism includes: an assembly plate fixed in the sampling cylinder; a first auger installed on the assembly plate through a bearing, a drill bit for drilling soil is fixed at the bottom end of the first auger, the drill bit has a tubular structure, and a soil discharge port is provided thereon; a conduit fixed and communicated with the sampling cylinder for guiding the soil; a second auger installed on the assembly plate through a bearing, and one end of the second auger extends into the conduit; first bevel gears respectively fixed on the first auger and the second auger and meshing with each other.

[0007] Preferably, the collection mechanism includes: a second mounting plate fixed to one side of the mounting shell, an adjustable first toothed plate provided on the second mounting plate; a mounting block fixed to the first toothed plate, a second rotating rod assembled on the mounting block through a bearing; a placement plate assembled on the second rotating rod through a connecting plate, collection boxes annularly placed on the placement plate, and the collection boxes are used to receive and store soil samples.

[0008] Preferably, the driving mechanism includes: a support fixed inside the mounting shell, a spline sleeve assembled on the support through a bearing; a first spline rod assembled in the spline sleeve, the bottom end of the first spline rod being fixedly connected to the shaft rod of the first auger through a coupling; a second bevel gear fixed to the spline sleeve; a first transmission rod assembled in the mounting shell through a bearing, a third bevel gear fixed to the first transmission rod, and the third bevel gear meshing with the second bevel gear; a motor fixed inside the mounting shell, and the output shaft of the motor being fixedly connected to the first transmission rod through a coupling.

[0009] Preferably, the lifting mechanism includes: an adjusting plate slidably mounted on the mounting shell, one end of the adjusting plate being fixedly connected to the sampling tube; a second screw rod assembled in the mounting shell through a bearing seat, the second screw rod threadedly penetrating the adjusting plate; fourth bevel gears respectively fixed to the first transmission rod and the second screw rod and meshing with each other.

[0010] Preferably, an anti-slip plate is fixed to the bottom of the base, and a through opening is provided in the base, and the sampling tube and the drill bit can pass through the through opening.

[0011] Preferably, a crushing box for crushing soil is provided at the soil outlet end of the conduit, an outlet is provided at the bottom of the crushing box, and a guiding shell is provided below the outlet, and the guiding shell is fixedly connected to the crushing box.

[0012] Preferably, an assembly shell is fixed to one side of the mounting shell, a pointed cone rod with adjustable height is provided on the assembly shell for positioning, and a through groove for the conduit to move is provided on the mounting shell.

[0013] Preferably, limit blocks are fixed to the tops of the first spline rod and the first toothed plate, and a sliding opening adapted to the first toothed plate is provided on the second mounting plate.

[0014] Preferably, a third transmission rod is assembled on the mounting shell through a bearing, a first gear and a seventh bevel gear are fixed to the third transmission rod, the first gear meshes with the first toothed plate, and the seventh bevel gear meshes with the second bevel gear.

[0015] Compared with the related art, the soil sampling device for saline-alkali land improvement provided by the present invention has the following beneficial effects:

[0016] Compared with the prior art, the soil sampling device for improving saline-alkali land provided by the present solution solves the problem of inconvenient sample collection during soil sampling by setting up a collection mechanism, a soil collection and transmission mechanism and other multiple mechanisms to work together. The first auger and the second auger are linked to improve the collection and transmission efficiency, and the collection mechanism flexibly connects the soil to classify and collect samples; the multi-stage transmission system transmits power stably, and the lifting mechanism uses the power of the driving mechanism to achieve precise lifting and lowering of the sampling tube; the crushing box crushes the soil to improve the accuracy of sample analysis; the rotating mechanism, the crushing transmission mechanism and other components are highly coordinated to enhance the overall operation smoothness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of a soil sampling device for improving saline-alkali land provided by the present invention;

[0018] Figure 2 It is a schematic diagram of the main cross-sectional structure of a soil sampling device for improving saline-alkali land provided by the present invention;

[0019] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in FIG.

[0020] Figure 4 for Figure 2 An enlarged schematic diagram of the structure of part B shown in FIG.

[0021] Figure 5 for Figure 2 An enlarged schematic diagram of the structure of part C shown in FIG.

[0022] Figure 6 for Figure 2 An enlarged structural diagram of part D shown in FIG.

[0023] Figure 7 for Figure 2 An enlarged structural diagram of part E shown in FIG.

[0024] Figure 8 It is a schematic diagram of the top view of the placement plate and the collection box in the present invention;

[0025] Figure 9 It is a structural schematic diagram of the base in the present invention;

[0026] Figure 10 It is a schematic diagram of the structure of the collecting box in the present invention.

[0027] Reference Numerals: 1, base; 2, mounting shell; 3, sampling cylinder; 4, first mounting bracket; 5, traveling wheel; 6, handle bracket; 7, first auger; 8, drill bit; 9, conduit; 10, second auger; 11, first bevel gear; 12, assembly shell; 13, mounting pipe; 14, first screw rod; 15, first mounting plate; 16, pointed cone rod; 17, crushing box; 18, crushing teeth; 19, first rotating rod; 20, feeding shell; 21, first toothed plate; 22, mounting block; 23, second rotating rod; 24, placing plate; 25, collection box; 26, support; 27, spline sleeve; 28, first spline rod; 29, second bevel gear; 30, first transmission rod; 31, third bevel gear; 32, second screw rod; 33, fourth bevel gear; 34, adjusting plate; 35, second transmission rod; 36, fifth bevel gear; 37, sixth bevel gear; 38, second mounting plate; 39, third transmission rod; 40, seventh bevel gear; 41, first gear; 42, third mounting plate; 43, second spline rod; 44, eighth bevel gear; 45, spline cylinder; 46, ninth bevel gear; 47, tenth bevel gear; 48, toothed ring; 49, second mounting bracket; 50, first shaft rod; 51, second gear; 52, second shaft rod; 53, eleventh bevel gear; 54, second toothed plate; 55, third gear; 56, assembly plate; 57, motor; 58, through port; 59, anti-slip plate; 60, limit block. Detailed Embodiment

[0028] As used herein, the mention of "embodiment" means that the specific features, structures, or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0029] An embodiment of the present invention provides a soil sampling device for saline-alkali soil improvement, as Figures 1-10 shown, the soil sampling device for saline-alkali soil improvement includes: a base 1, on which a mounting shell 2 is provided; a sampling cylinder 3 that is vertically adjustable and arranged inside the mounting shell 2; traveling wheels 5 that are assembled on one side of the mounting shell 2 through a first mounting bracket 4 for movement; a handle bracket 6 fixed on the mounting shell 2 for grasping; a soil collection and transmission mechanism that is arranged on the sampling cylinder 3 and is used for drilling and collecting and transporting soil; a collection mechanism that is arranged on the mounting shell 2 and is used for receiving and collecting the collected soil samples; a driving mechanism that is arranged on the mounting shell 2 and is used for driving the soil collection and transmission mechanism to operate; and a lifting mechanism that is arranged inside the mounting shell 2 and is used for controlling the lifting of the sampling cylinder 3.

[0030] In this embodiment, hold the handle frame 6, move the device to the required sampling position through the traveling wheels 5, start the driving mechanism, drive the soil collection and transmission mechanism to operate, so that it drills and collects the soil, and conveys the collected soil out. At the same time, the lifting mechanism adjusts the sampling cylinder 3 to descend for soil sampling. After the collected soil sample is transmitted by the soil collection and transmission mechanism, it is picked up and collected by the collection mechanism on the installation shell 2;

[0031] By setting up a special collection mechanism, it can conveniently pick up and collect the collected soil samples, overcoming the problem of inconvenient soil collection of existing devices; the traveling wheels 5 are assembled on the installation shell 2 and are matched with the handle frame 6, which is convenient to move the device, so that the device can flexibly reach different sampling locations; multiple mechanisms such as the soil collection and transmission mechanism, the driving mechanism, and the lifting mechanism work together to ensure the orderly progress of the whole process from soil collection to collection; this soil sampling device for saline-alkali land improvement solves the problem of inconvenient sample collection during soil sampling, is suitable for soil sampling work in saline-alkali land, and provides a convenient soil sample collection tool for saline-alkali land improvement research.

[0032] In a further preferred embodiment of the present invention, the soil collection and transmission mechanism includes: an assembly plate 56 fixed inside the sampling cylinder 3; a first auger 7 installed on the assembly plate 56 through a bearing, a drill bit 8 for drilling soil is fixed at the bottom end of the first auger 7, the drill bit 8 has a tubular structure, and a soil discharge port is provided thereon; a conduit 9 fixedly connected to the sampling cylinder 3 for guiding soil; a second auger 10 installed on the assembly plate 56 through a bearing, and one end of the second auger 10 extends into the conduit 9; first bevel gears 11 respectively fixed on the first auger 7 and the second auger 10 and meshing with each other.

[0033] In this embodiment, in the soil collection and transmission link, the first auger 7 rotates driven by the driving mechanism. Since the first auger 7 and the second auger 10 are connected by the mutually meshing first bevel gears 11, the second auger 10 rotates synchronously. The tubular drill bit 8 at the bottom end of the first auger 7 drills into the soil, the soil enters the sampling cylinder 3 through the soil discharge port of the drill bit 8, the first auger 7 conveys the soil upward, and during the conveying process through the conduit 9, the second auger 10 assists in conveying, and finally the collection mechanism completes the soil collection;

[0034] The first auger 7 and the second auger 10 are linked by the first bevel gears 11, and the two cooperate to convey the soil. Compared with the single-auger conveying, the efficiency of soil collection and transmission is significantly improved; while the tubular drill bit 8 drills into the soil, it can quickly collect the soil through the soil discharge port, improving the efficiency of the soil entering the sampling cylinder 3 and making the soil drilling and discharging links smoother; the transmission method of the cooperation of the conduit 9 and the double augers can effectively avoid soil blockage and enable the soil sample to reach the collection mechanism smoothly.

[0035] In a further preferred embodiment of the present invention, the collection mechanism includes: a second mounting plate 38 fixed to one side of the mounting housing 2, an adjustable first toothed plate 21 provided on the second mounting plate 38; a mounting block 22 fixed to the first toothed plate 21, a second rotating rod 23 assembled on the mounting block 22 through a bearing; a placement plate 24 assembled on the second rotating rod 23 through a connecting plate, a collection box 25 annularly placed on the placement plate 24, and the collection box 25 is used for receiving and storing soil samples.

[0036] In this embodiment, when carrying out soil sampling work, the sampling cylinder 3 descends for soil collection. Since the first toothed plate 21 can move synchronously with the sampling cylinder 3, the collection mechanism will also move accordingly. After the soil is transported out by the collection and transmission mechanism, it enters the empty collection box 25;

[0037] The first toothed plate 21 can move synchronously with the sampling cylinder 3, ensuring that the collection mechanism is always accurately adapted to the output position of the sampling cylinder 3 and the soil collection and transmission mechanism, avoiding soil sample spillage caused by position deviation and ensuring the accuracy of the collection process;

[0038] A plurality of collection boxes 25 are annularly arranged on the placement plate 24. By rotating the second rotating rod 23, it is easy to switch, without the need to frequently replace the collection container, greatly improving the convenience of collecting soil samples; the collection boxes 25 can independently store soil samples, facilitating the classified collection and management of soil samples collected at different positions or batches, and meeting the requirements for soil sample collection.

[0039] In a further preferred embodiment of the present invention, the driving mechanism includes: a support 26 fixed inside the mounting housing 2, a spline sleeve 27 assembled on the support 26 through a bearing; a first spline rod 28 assembled inside the spline sleeve 27, the bottom end of the first spline rod 28 being fixedly connected to the shaft rod of the first auger 7 through a coupling; a second bevel gear 29 fixed to the spline sleeve 27; a first transmission rod 30 assembled inside the mounting housing 2 through a bearing, a third bevel gear 31 fixed on the first transmission rod 30, and the third bevel gear 31 meshing with the second bevel gear 29; a motor 57 fixed inside the mounting housing 2, and the output shaft of the motor 57 being fixedly connected to the first transmission rod 30 through a coupling.

[0040] In this embodiment, when the motor 57 operates, its output shaft drives the first transmission rod 30 to rotate. Since the third bevel gear 31 is fixed to the first transmission rod 30 and the second bevel gear 29 meshes with the third bevel gear 31, the spline sleeve 27 will rotate synchronously with the second bevel gear 29. When the spline sleeve 27 rotates, it drives the first spline rod 28 assembled inside it to rotate, and the first spline rod 28 drives the shaft rod of the first auger 7 to rotate through a coupling, thereby causing the first auger 7 to start the transmission operation on the soil;

[0041] A multi-stage transmission system composed of a motor 57, a first transmission rod 30, a second bevel gear 29, a third bevel gear 31, a spline sleeve 27, and a first spline rod 28 realizes stable power transmission and ensures the stable operation of the first auger 7;

[0042] The assembly method of the first spline rod 28 and the spline sleeve 27 not only ensures effective power transmission but also allows a certain degree of freedom of movement in the axial direction between the two, which can adapt to the lifting and lowering changes of the sampling cylinder 3; The structural layout is reasonable and compact: the motor 57, the support 26, and each transmission component are all installed in the installation shell 2. This compact structural layout not only saves the space of the device but also facilitates the maintenance and repair of the drive mechanism, improving the practicality of the device.

[0043] In a further preferred embodiment of the present invention, the lifting mechanism includes: an adjusting plate 34 slidably installed on the installation shell 2, one end of the adjusting plate 34 is fixedly connected to the sampling cylinder 3; a second screw rod 32 assembled in the installation shell 2 through a bearing seat, the second screw rod 32 threadedly penetrates the adjusting plate 34; and fourth bevel gears 33 respectively fixed on the first transmission rod 30 and the second screw rod 32 and meshing with each other.

[0044] In this embodiment, when the motor 57 starts, the first transmission rod 30 rotates accordingly. Since the fourth bevel gears 33 are respectively fixed on the first transmission rod 30 and the second screw rod 32 and mesh with each other, the second screw rod 32 will be driven to rotate. The second screw rod 32 threadedly penetrates the adjusting plate 34, and during its rotation, the adjusting plate 34 will slide along the installation shell 2. Because one end of the adjusting plate 34 is fixedly connected to the sampling cylinder 3, the lifting of the sampling cylinder 3 can be realized to cooperate with the soil collection operation; by using the rotation of the first transmission rod 30 to drive the second screw rod 32 to work, the power of the drive mechanism is reasonably applied to the lifting mechanism, avoiding the need to set up an additional power source, improving the energy utilization efficiency, and simplifying the overall structure of the device.

[0045] Through the threaded cooperation method, the adjusting plate 34 slides smoothly under the drive of the second screw rod 32, ensuring that the lifting process of the sampling cylinder 3 is accurately controllable.

[0046] In a further preferred embodiment of the present invention, an anti-slip plate 59 is fixed to the bottom of the base 1, and a through hole 58 is formed in the base 1, and the through hole 58 allows the sampling cylinder 3 and the drill bit 8 to pass through.

[0047] In this embodiment, when soil sampling is carried out, the device is placed at the target sampling position, and the anti-slip plate 59 at the bottom of the base 1 contacts the ground to ensure the stability of the device. After starting the device, the sampling tube 3 moves downward with the drill bit 8 through the opening 58 on the base 1 to drill and collect soil. After the collection is completed, the sampling tube 3 and the drill bit 8 rise and reset through the opening 58; the anti-slip plate 59 is fixed to the bottom of the base 1, which increases the friction between the device and the ground, effectively preventing the device from shifting or shaking during the sampling process, and ensuring the smooth progress of the sampling work; the opening 58 is opened on the base 1 to provide a channel for the lifting and lowering of the sampling tube 3 and the drill bit 8, avoiding the obstruction of the sampling operation by the base 1, making the sampling process smoother.

[0048] In a further preferred embodiment of the present invention, a crushing box 17 for crushing and processing soil is provided at the unearthed end of the conduit 9, an unearthed port is provided at the bottom of the crushing box 17, a guide shell 20 is provided below the unearthed port, and the guide shell 20 is fixedly connected to the crushing box 17.

[0049] In this embodiment, the soil is transported to the crushing box 17 through the conduit 9, and the soil crushing process is completed in the crushing box 17. The crushed soil falls from the discharge port at the bottom of the crushing box 17 and enters the guide shell 20. The guide shell 20 guides the soil into the collecting box 25 of the collecting mechanism to complete the soil sample collection; the crushing box 17 crushes the collected soil to make the soil sample particles more uniform, which is convenient for subsequent analysis and research on the soil samples, and improves the accuracy and reliability of soil analysis; the guide shell 20 is fixedly connected to the crushing box 17, effectively receiving the crushed soil falling from the discharge port, avoiding soil spilling, and guiding the soil to smoothly enter the collecting box 25, thereby ensuring the smooth transmission of soil samples from collection to collection.

[0050] In a further preferred embodiment of the present invention, an assembly shell 12 is fixed to one side of the installation shell 2, and a height-adjustable pointed cone rod 16 is provided on the assembly shell 12 for positioning, and a through groove for the guide tube 9 to move is provided on the installation shell 2.

[0051] In this embodiment, the pointed cone rod 16 is inserted into the ground during soil sampling to position the device. During soil collection and transmission, the guide tube 9 can move along the through slot, and the pointed cone rod 16 is inserted into the ground to effectively fix the position of the device to prevent displacement of the device during sampling. The through slot is provided on the mounting shell 2 to provide a moving space for the guide tube 9.

[0052] In a further preferred embodiment of the present invention, the first spline rod 28 and the top of the first tooth plate 21 are both fixed with a limit block 60 , and the second mounting plate 38 is provided with a sliding opening adapted to the first tooth plate 21 .

[0053] In this embodiment, when the first spline rod 28 rotates within the spline sleeve 27 and may undergo axial displacement, the limiting block 60 at its top restricts the displacement range to prevent it from disengaging. When the first toothed plate 21 moves on the second mounting plate 38, the sliding opening provides guidance, and the limiting block 60 at the top of the first toothed plate 21 prevents it from slipping out of the sliding opening.

[0054] In a further preferred embodiment of the present invention, a third transmission rod 39 is assembled on the mounting shell 2 through bearings. A first gear 41 and a seventh bevel gear 40 are fixed on the third transmission rod 39. The first gear 41 meshes with the first toothed plate 21, and the seventh bevel gear 40 meshes with the second bevel gear 29.

[0055] In this embodiment, when the motor 57 is started, the first transmission rod 30 rotates, driving the second bevel gear 29 to rotate. Since the seventh bevel gear 40 meshes with the second bevel gear 29, the third transmission rod 39 rotates accordingly. When the third transmission rod 39 rotates, the first gear 41 fixed thereon rotates synchronously. Because the first gear 41 meshes with the first toothed plate 21, the first toothed plate 21 will move on the sliding opening of the second mounting plate 38, thereby driving the collection mechanism to move up and down;

[0056] Through components such as the third transmission rod 39, the first gear 41, and the seventh bevel gear 40, the power of the driving mechanism is transmitted to the collection mechanism, realizing the coordinated operation of multiple mechanisms, optimizing the transmission path of the device, and improving the power transmission efficiency; the meshing transmission of the first gear 41 and the first toothed plate 21, combined with the guidance of the sliding opening of the second mounting plate 38, makes the movement of the collection mechanism more stable.

[0057] To further improve the usage effect of the present device, in addition to the above-mentioned solution, this solution also has the following embodiments:

[0058] In another embodiment of the present invention, a rotating mechanism is provided on the mounting shell 2, the crushing box 17, and the placing disk 24. The rotating mechanism includes: a toothed ring 48 fixedly sleeved on the placing disk 24; a second mounting bracket 49 fixed on the crushing box 17. A first shaft rod 50 and a second shaft rod 52 are assembled on the second mounting bracket 49 through bearings. The first shaft rod 50 and the second shaft rod 52 are driven by an eleventh bevel gear 53 that is fixedly installed and meshes with each other; a second gear 51 fixed on the first shaft rod 50, the second gear 51 meshes with the toothed ring 48; a second toothed plate 54 fixed on one side of the mounting shell 2; a third gear 55 fixed on the second shaft rod 52, the third gear 55 meshes with the second toothed plate 54.

[0059] In this embodiment, when the first toothed plate 21 descends, the third gear 55 fixed on the second shaft rod 52 will move along the second toothed plate 54 fixed on one side of the mounting shell 2. The movement of the third gear 55 drives the second shaft rod 52 to rotate, and the second shaft rod 52 drives the first shaft rod 50 to rotate through the mutually meshing eleventh bevel gear 53. The second gear 51 on the first shaft rod 50 rotates accordingly, and then drives the toothed ring 48 fixedly sleeved on the placement plate 24 to rotate, realizing the rotational adjustment of the placement plate 24. During this process, the position of the collection box 25 is adjusted, enabling rotational soil collection and cooperating with the soil collection and transmission work;

[0060] By means of the action of the first toothed plate 21 descending, the rotation mechanism automatically triggers the rotation of the placement plate 24, realizing the dynamic adjustment of the position of the collection box 25. Without manual intervention, the collection mechanism can be accurately matched with the rhythm of soil collection and transmission, significantly improving the collection efficiency and accuracy; through the multi-stage transmission of the third gear 55 and the second toothed plate 54, the second gear 51 and the toothed ring 48, and the eleventh bevel gear 53, a coordination mechanism among multiple components such as the first toothed plate 21 and the placement plate 24 is established, optimizing the internal linkage logic of the device and enhancing the smoothness of the overall operation; associating the adjustment of the position of the collection box 25 with the movement of the first toothed plate 21 simplifies the operation process of the device and reduces the working intensity of the operator.

[0061] In another embodiment of the present invention, a crushing transmission mechanism is provided on the crushing box 17, the mounting shell 2 and the first toothed plate 21. The crushing transmission mechanism includes: a first rotating rod 19 assembled in the crushing box 17 through bearings, and a plurality of crushing teeth 18 are fixed on both the first rotating rod 19 and the inner wall of the crushing box 17, and the plurality of crushing teeth 18 are staggered; a third mounting plate 42 fixed on one side of the mounting shell 2, a second spline rod 43 is assembled on the third mounting plate 42 through bearings, and mutually meshing eighth bevel gears 44 are fixed on the second spline rod 43 and the third transmission rod 39; a spline cylinder 45 sleeved outside the second spline rod 43 and connected to the first toothed plate 21 through a bearing seat; ninth bevel gears 46 and tenth bevel gears 47 respectively fixed on the spline cylinder 45 and the first rotating rod 19, and the ninth bevel gears 46 and the tenth bevel gears 47 are meshed for transmission.

[0062] In this embodiment, the motor 57 is started, and the third transmission rod 39 rotates accordingly. Since the eighth bevel gears 44 are respectively fixed on the third transmission rod 39 and the second spline rod 43 and are meshed with each other, the second spline rod 43 starts to rotate. When the first toothed plate 21 descends, the spline cylinder 45 moves synchronously with it. Since the spline cylinder 45 is sleeved outside the second spline rod 43, the two maintain relative rotation. During the rotation of the spline cylinder 45, the first rotating rod 19 is driven to rotate through the meshed ninth bevel gear 46 and tenth bevel gear 47, so that the crushing teeth 18 distributed alternately in the crushing box 17 perform crushing treatment on the soil;

[0063] By means of the multi-stage bevel gear transmission system composed of the eighth bevel gear 44, the ninth bevel gear 46 and the tenth bevel gear 47, the power of the motor 57 is efficiently transmitted to the crushing box 17 to ensure the stable operation of the crushing teeth 18; the cooperation between the spline cylinder 45 and the second spline rod 43, and the connection between the first toothed plate 21 and the spline cylinder 45 enable the crushing transmission mechanism to achieve high coordination with other components of the device. When the first toothed plate 21 descends, the soil crushing operation is automatically triggered, and all links are closely connected to improve the overall operation fluency; the crushing teeth 18 distributed alternately on the inner wall of the crushing box 17 and the first rotating rod 19 form an all-round crushing effect during rotation, making the soil sample more thoroughly crushed and the particles more uniform, providing a high-quality sample for subsequent soil analysis.

[0064] In another embodiment of the present invention, a linkage adjustment mechanism for regulating the lifting of the tapered rod 16 is provided on the mounting shell 2 and the assembly shell 12. The linkage adjustment mechanism includes: a mounting tube 13 fixed on the assembly shell 12, and a first screw rod 14 is assembled in the mounting tube 13 through a bearing; a first mounting plate 15 is threadedly sleeved on the first screw rod 14, and the bottom of the first mounting plate 15 is fixedly connected to the tapered rod 16; a second transmission rod 35 is assembled on the mounting shell 2 through a bearing, and a fifth bevel gear 36 is fixed on the second transmission rod 35 and the first screw rod 14 and are meshed with each other, and a sixth bevel gear 37 is fixed on the top of the first screw rod 14 and the second transmission rod 35 and are meshed with each other.

[0065] In this embodiment, when it is necessary to adjust the height of the tapered rod 16, the second transmission rod 35 is rotated. Since the fifth bevel gear 36 and the sixth bevel gear 37 are respectively fixed on the second transmission rod 35 and the first screw rod 14 and are meshed with each other, the first screw rod 14 rotates accordingly. The first mounting plate 15 is threadedly sleeved on the first screw rod 14. As the first screw rod 14 rotates, the first mounting plate 15 will move up and down along the axial direction of the mounting tube 13. Because the bottom of the first mounting plate 15 is fixedly connected to the tapered rod 16, the tapered rod 16 will also rise and fall accordingly, realizing the adjustment of the positioning height of the device.

[0066] Through the second transmission rod 35, the first screw rod 14 and the bevel gear transmission structure, the lifting height of the tapered rod 16 can be accurately controlled, enabling the device to achieve stable positioning under different terrain conditions and improving the adaptability of the device to complex working environments. Compared with the traditional manual single adjustment method, the linkage adjustment mechanism only needs to rotate the second transmission rod 35 to achieve the lifting of the tapered rod 16, with simple and convenient operation, greatly saving the adjustment time and improving the work efficiency.

[0067] In summary, compared with the related technologies, by setting up multiple mechanisms such as the collection mechanism and the soil sampling and transmission mechanism to work together, the problem of inconvenient sample collection during soil sampling is solved. The first auger 7 and the second auger 10 are linked to improve the collection and transmission efficiency, and the collection mechanism flexibly receives soil and classifies and collects samples. The multi-stage transmission system stably transmits power, and the lifting mechanism realizes the precise lifting of the sampling cylinder 3 by means of the power of the driving mechanism. The crushing box 17 crushes the soil to improve the accuracy of sample analysis. The rotating mechanism, the crushing transmission mechanism and other components are highly coordinated to enhance the overall operation smoothness.

[0068] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that are essentially not divorced from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A soil sampling device for saline-alkali land improvement, characterized in that, Including: A base, on which an installation shell is provided; A sampling cylinder which is arranged in the installation shell and can be adjusted in height; Traveling wheels which are assembled on one side of the installation shell through a first mounting frame for movement; A handle frame which is fixed on the installation shell for gripping; A soil collection and transmission mechanism which is arranged on the sampling cylinder for drilling soil, collecting and transporting soil; A collection mechanism which is arranged on the installation shell for receiving and collecting the collected soil samples; A driving mechanism which is arranged on the installation shell for driving the operation of the soil collection and transmission mechanism; A lifting mechanism which is arranged in the installation shell for adjusting the lifting of the sampling cylinder.

2. The soil sampling device for saline-alkali land improvement according to claim 1, characterized in that, The soil collection and transmission mechanism includes: An assembly plate which is fixed in the sampling cylinder; A first auger which is installed on the assembly plate through a bearing, and a drill bit for drilling soil is fixed at the bottom end of the first auger. The drill bit has a tubular structure and is provided with a soil discharge port; A conduit which is fixedly communicated with the sampling cylinder for guiding and transporting soil; A second auger which is installed on the assembly plate through a bearing, and one end of the second auger extends into the conduit; First bevel gears which are respectively fixed on the first auger and the second auger and are meshed with each other.

3. The soil sampling device for saline-alkali land improvement according to claim 1, characterized in that, The collection mechanism includes: A second mounting plate which is fixed on one side of the installation shell, and an adjustable first toothed plate is arranged on the second mounting plate; A mounting block which is fixed on the first toothed plate, and a second rotating rod is assembled on the mounting block through a bearing; A placement plate which is assembled on the second rotating rod through a connecting plate. Collection boxes are annularly placed on the placement plate, and the collection boxes are used for receiving and storing soil samples.

4. The soil sampling device for saline-alkali land improvement according to claim 3, wherein, The driving mechanism includes: A support which is fixed in the installation shell, and a spline sleeve is assembled on the support through a bearing; A first spline rod which is assembled in the spline sleeve, and the bottom end of the first spline rod is fixedly connected with the shaft rod of the first auger through a coupling; A second bevel gear which is fixed on the spline sleeve; A first transmission rod which is assembled in the installation shell through a bearing, and a third bevel gear is fixed on the first transmission rod. The third bevel gear is meshed with the second bevel gear; A motor which is fixed in the installation shell, and the output shaft of the motor is fixedly connected with the first transmission rod through a coupling.

5. The soil sampling device for saline-alkali land improvement according to claim 4, characterized in that, The lifting mechanism includes: An adjusting plate which is slidably installed on the installation shell, and one end of the adjusting plate is fixedly connected with the sampling cylinder; A second screw rod which is assembled in the installation shell through a bearing seat, and the second screw rod threadedly penetrates through the adjusting plate; Fourth bevel gears which are respectively fixed on the first transmission rod and the second screw rod and are meshed with each other.

6. The soil sampling device for saline-alkali land improvement according to claim 2, characterized in that, An anti-slip plate is fixed at the bottom of the base, and a through hole is opened on the base. The through hole can allow the sampling cylinder and the drill bit to pass through.

7. The soil sampling device for saline-alkali land improvement according to claim 2, characterized in that A crushing box for crushing and treating soil is arranged at the soil outlet end of the conduit. An outlet is opened at the bottom of the crushing box, and a guiding shell is arranged below the outlet. The guiding shell is fixedly connected with the crushing box.

8. The soil sampling device for saline-alkali land improvement according to claim 2, characterized in that, An assembly shell is fixed on one side of the installation shell, and a height-adjustable pointed cone rod is arranged on the assembly shell for positioning. A through groove for the conduit to move is opened on the installation shell.

9. The soil sampling device for saline-alkali land improvement according to claim 4, characterized in that Limit blocks are fixed to both the top of the first spline rod and the first toothed plate, and a sliding opening adapted to the first toothed plate is formed in the second mounting plate.

10. The soil sampling device for saline-alkali land improvement according to claim 3, wherein, A third transmission rod is assembled on the mounting shell through a bearing, a first gear and a seventh bevel gear are fixed on the third transmission rod, the first gear meshes with the first toothed plate, and the seventh bevel gear meshes with the second bevel gear.

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