A soil acidity and salinity detection device

Abstract

The invention discloses a soil acidity and salinity detection device, belonging to the technical field of soil detection. The soil acidity and salinity detection device comprises a sampling platform, a driving mechanism is fixedly installed on the surface of the sampling platform, a sampling mechanism is slidably connected between the sampling platform and the driving mechanism, the driving mechanism is used to drive the sampling mechanism to perform sampling work, and further comprises a stirring mechanism fixedly installed inside the left side of the sampling platform, a salt detection mechanism fixedly installed on the right surface of the sampling platform, and a collecting mechanism for collecting soil is symmetrically installed on the surface of the sampling mechanism; a cleaning mechanism is fixedly installed inside the sampling platform, a fixing mechanism is fixedly installed on the lower surface of the sampling platform, a sealing mechanism is slidably connected inside the sampling platform, and the collecting mechanism moves up and down with the sampling mechanism to effectively collect the soil inside the borehole, and the collected soil samples are transported to two collection boxes for storage and detection.

Description

Technical Field

[0001] The invention belongs to the technical field of soil detection, and in particular relates to a soil pH and salinity detection device. Background Art

[0002] Soil is a loose and porous substance that exists on the surface of the earth and can grow green plants. It is composed of various granular minerals, organic matter, water, air, microorganisms, etc. The physical and chemical properties of soil change with the depth of the soil layer. In many fields such as soil science, agronomy, hydraulics, and environmental testing, in order to better study environmental changes, it is often necessary to sample and study soil at all depths. Soil pH and salinity are important indicators for evaluating soil quality, guiding agricultural production, and conducting environmental management. Soil pH reflects the concentration of hydrogen ions in the soil solution, while salinity refers to the content of soluble salts in the soil, which has an important impact on plant growth.

[0003] When testing the pH and salinity of the soil, the tests are usually conducted on the same soil sample. However, due to the significant differences in the detection methods of pH and salinity, it is often difficult for the same soil sample to meet all the requirements of both detection methods. Both pH and salinity tests require the soil sample to be mixed with water, but the mixing ratio, time and conditions may vary depending on the detection method. Therefore, after one test, the state of the same soil sample has changed and it may no longer be suitable for another test.

[0004] Therefore, it is urgent to provide a soil pH and salinity detection device to solve the above problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a soil pH and salinity detection device.

[0006] The technical solution adopted to solve the above technical problems is: to provide a soil pH and salinity detection device, including a sampling platform, a driving mechanism is fixedly installed on the surface of the sampling platform, a sampling mechanism is slidably connected between the sampling platform and the driving mechanism, and the driving mechanism is used to drive the sampling mechanism to perform sampling work, and also includes;

[0007] A stirring mechanism is fixedly installed inside the left side of the sampling platform, a salt detection mechanism is fixedly installed on the right surface of the sampling platform, and a collecting mechanism for collecting soil is symmetrically installed on the surface of the sampling mechanism;

[0008] A cleaning mechanism is fixedly installed inside the sampling platform, a fixing mechanism is fixedly installed on the lower surface of the sampling platform, and a sealing mechanism is slidably connected inside the sampling platform.

[0009] The present invention is further configured as follows: two collecting boxes are provided inside the sampling platform, a first through hole is provided on the surface of the sampling platform, a groove is provided inside the sampling platform, a feed port is provided on one side of the two collecting boxes, the first through hole and the feed port are both connected to the inside of the groove, a long baffle is fixedly installed on the side of the feed port, a first protrusion is fixedly installed on the lower surface of the long baffle, a discharge port is provided at the bottom of the two collecting boxes, guide rails are fixedly installed on both sides of the discharge port, first fixed blocks are fixedly installed on both sides of the sampling platform, a pin is movably inserted inside the first fixed block, a liquid outlet is fixedly installed on one side of the left collection box, water injection pipes are fixedly installed on the surfaces of the two collection boxes, and a second through hole is provided on the surface of the right collection box.

[0010] Through the above technical scheme, two collection boxes are used to place two soil samples, which are used for pH and salinity detection respectively. The first through hole and the groove are set for the up and down movement of the fixing seat. The soil sample is transported to the inside of the collection box through the feed port to wait for detection. The long baffle and the first protrusion are set to rotate the hinged plate to an inclined straight line state to facilitate the transportation of the soil to the inside of the collection boxes on both sides. After the detection is completed, the soil is discharged through the discharge port for the convenience of next use. The guide rail cooperates with the sealing plate to seal the inside of the collection box. After the sealing plate is inserted into the discharge port, it is fixed by the latch. The liquid outlet is used to extract the soil solution inside the left collection box for pH detection. The water injection pipe is set to facilitate the addition of different proportions of water to the inside of the two collection boxes. The second through hole is set to facilitate the up and down movement of the probe.

[0011] The present invention is further configured as follows: the driving mechanism includes a support frame, the support frame is fixedly mounted on the surface of the sampling table, a first motor is fixedly mounted on one side of the support frame, an output end of the first motor is transmission-connected to a threaded rod, screw sleeve grooves are provided on both sides of the support frame, the threaded rod is rotatably connected to the inside of the screw sleeve groove on the left side, and a first guide rod is fixedly mounted inside the screw sleeve groove on the right side.

[0012] Through the above technical solution, when the first motor is started, the threaded rod rotates, and the first movable plate can be moved downward through the connection setting of the screw sleeve and the threaded rod, thereby driving the drill bit of the sampling mechanism to move downward for drilling and sampling. The setting of the screw sleeve groove and the first guide rod makes the first movable plate more stable when moving up and down and prevents the first movable plate from shifting left and right.

[0013] The present invention is further configured as follows: the sampling mechanism includes a fixed seat, the fixed seat is slidably connected to the first through hole and the groove, a motor table is fixedly installed at one end of the fixed seat, a second motor is fixedly installed on the surface of the motor table, the output end of the second motor is transmission-connected to a first rotating rod, the first rotating rod is rotatably connected to the inside of the fixed seat, a drill bit is fixedly installed on the end of the first rotating rod, a plurality of first connecting rods are fixedly installed on the surface of the motor table, a first movable plate is fixedly installed on the top end of the first connecting rod, screw sleeves are fixedly installed on both sides of the first movable plate, the screw sleeve on the left side is threadedly connected to the surface of the threaded rod, the screw sleeve on the right side is slidably connected to the surface of the first guide rod, and the two screw sleeves are slidably connected inside the screw sleeve groove.

[0014] Through the above technical solution, when the second motor is started, the first rotating rod rotates. At this time, under the action of the first motor, the sampling mechanism moves downward as a whole, so that the drill bit can perform ground drilling work. The motor table is used to place the second motor. Through the connection of the first connecting rod, the first movable plate can drive the fixed seat and the drill bit to move downward as a whole when it moves downward.

[0015] The present invention is further configured as follows: the stirring mechanism includes a third motor, the third motor is fixedly mounted on the surface of the left collection box, the output end of the third motor is transmission-connected to a second rotating rod, a plurality of stirring blades are fixedly mounted on the surface of the second rotating rod, and the second rotating rod and the plurality of stirring blades are both rotationally connected inside the left collection box.

[0016] Through the above technical solution, after the soil sample is transported to the inside of the left collection box, water is added through the water injection pipe, the third motor is started, and the second rotating rod rotates, driving multiple stirring plates to stir the soil sample and water, so that the soil and water are mixed more evenly. After standing for a period of time, the clear water part on the surface of the soil solution flows out through the liquid outlet, and the pH value can be tested by the test paper at this time.

[0017] The present invention is further configured as follows: the salt detection mechanism includes a salt detector, the salt detector is fixedly mounted on the surface of the right collection box, an electric wire is fixedly connected inside the salt detector, a probe is fixedly mounted on the end of the electric wire, the probe is slidably connected inside the right collection box, a fixing frame is fixedly mounted on the surface of the right collection box, an electric telescopic rod is fixedly mounted on the surface of the fixing frame, the end of the electric telescopic rod is fixedly connected to the surface of the probe, and the electric wire, the electric telescopic rod and the probe are all slidably connected inside the second through hole.

[0018] Through the above technical solution, after the soil sample is transported to the inside of the right collection box, the electric telescopic rod is started. The electric telescopic rod works to move the probe at the end of the salt detector downward and contact the soil sample for salt detection. The fixed frame fixes the electric telescopic rod and is set at a certain distance from the surface of the sampling platform. After the probe detection is completed, it rises to the surface of the sampling platform, and the probe can be cleaned for easy use next time.

[0019] The present invention is further configured as follows: the collecting mechanism includes a second fixed block, a collecting groove is provided on the surface of the second fixed block, a fixing rod is fixedly installed on the surface of the second fixed block, a hinge plate is hinged at the bottom end of the second fixed block, a symmetrical baffle is fixedly installed on the surface of the hinge plate, a second convex block is fixedly installed on the other end surface of the hinge plate, a symmetrical spring is fixedly installed on the surface of the collecting groove, the other end of the spring is fixedly connected to the surface of the hinge plate, a rotating shaft is rotatably connected on both sides of the hinge plate, a rotating block is fixedly installed on the surface of the rotating shaft, a sliding groove is provided on the surface of the rotating block, a semicircular groove is provided at the middle position of the sliding groove, a magnet is fixedly installed inside the semicircular groove, and the fixing rod is slidably connected to the sliding groove and the inside of the semicircular groove.

[0020] By means of the above technical scheme, when the fixed seat moves downward, the two collecting mechanisms move downward at the same time. In the initial state, the outer diameter of the collecting groove formed by the hinge plate and the second fixed block is larger than the outer diameter of the drill bit. When the collecting mechanism moves to the inside of the drill hole, the hinge plate is squeezed by the drill hole and fits toward the second fixed block. At the same time, the fixed rod moves to the leftmost part of the slide groove. At this time, the outer diameter of the collecting groove is consistent with the outer diameter of the drill bit. After the drill bit reaches a certain depth, it stops rotating and starts to rise. At this time, under the action of the spring, the hinge plate moves away from the surface of the second fixed block and fits inside the drill hole. Since the surface of the hinge plate is set to be inclined, The soil on the surface of the borehole is scraped, allowing the soil to slide into the collecting trough. The fixed rod moves to the semicircular groove at this time, and the fixed rod is attracted by the magnet, so that the hinged plate can keep scraping the soil. After the drill bit moves out of the borehole, the hinged plate continues to rise, and the end of the hinged plate contacts the long baffle bar. The first protrusion intercepts the second protrusion, so that the hinged plate rotates after being pressurized until it forms an inclined straight line with the second fixed block. The fixed rod moves to the rightmost part of the slide, and the soil sample inside the collecting trough automatically falls into the collection boxes on both sides for placement and waiting for detection.

[0021] The present invention is further configured as follows: the cleaning mechanism includes a fourth motor, the fourth motor is fixedly mounted on the surface of the right-side collecting box, the sampling platform is rotatably connected to two reciprocating screws, the output end of the fourth motor is transmission connected to one end of a reciprocating screw, the surfaces of the two reciprocating screws are threadedly connected to a second movable plate, the lower surface of the second movable plate is fixedly mounted with a symmetrical second connecting rod, the end of the second connecting rod is fixedly mounted with a cleaning plate, the two cleaning plates are slidably connected to the inside of the two collecting boxes and fit with the internal bottom of the two collecting boxes, the other end of one reciprocating screw passes through the right-side collecting box and extends to the outside, the other ends of the two reciprocating screws are fixedly mounted with a first bevel gear, a third fixed block is fixedly mounted on the back of the sampling platform, a rotating bracket is rotatably connected to the inside of the third fixed block, second bevel gears are fixedly mounted on both ends of the rotating bracket, the two second bevel gears are respectively meshed with the two first bevel gears, second guide rods are fixedly mounted inside the two collecting boxes, and the two second movable plates are slidably connected to the surfaces of the two second guide rods.

[0022] Through the above technical solution, when it is necessary to clean the inside of the collection box, the fourth motor is started, and the reciprocating screw on the right side rotates, so that the second movable plate can move forward and backward, and then the cleaning plate is driven to move at the bottom of the collection box through the connection of the second connecting rod, so as to clean the soil sample and water inside the collection box. When the reciprocating screw on the right side rotates, the rotating bracket can rotate through the meshing action of the first bevel gear and the second bevel gear, so that the inside of the left collection box can be cleaned at the same time, and the third fixed block supports the rotating bracket, and the second guide rod makes the second movable plate more stable when moving.

[0023] The present invention is further configured as follows: the fixing mechanism comprises two supporting legs, the two supporting legs are fixedly mounted on the lower surface of the sampling table, a grounding plate is fixedly mounted on the ends of the supporting legs, and a plurality of positioning piles are fixedly mounted on the lower surface of the grounding plate.

[0024] Through the above technical solution, after the detection device is moved to a suitable position, the positioning piles are inserted into the ground, the grounding plate contacts the ground to support the detection device, and the supporting legs support the detection device.

[0025] The present invention is further configured as follows: the sealing mechanism includes a sealing plate, the sealing plate is slidably connected inside the discharge port, guide grooves are opened on both sides of the sealing plate, the guide rails are slidably connected inside the guide grooves, sockets are opened on both sides of one end of the sealing plate, and the latch is movably inserted inside the socket.

[0026] Through the above technical solution, the sealing mechanism cooperates with the cleaning mechanism to clean the inside of the collection box. Before the cleaning work begins, the pins on both sides are pulled out and the sealing plate is taken out. At this time, the feed port is opened, and part of the soil and water flows out from the inside of the collection box. The remaining soil and water can then be cleaned by the cleaning mechanism.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. The present invention is provided with a collecting mechanism, which moves up and down with the sampling mechanism to effectively collect the soil inside the borehole. The collected soil samples are transported to the inside of the two collecting boxes for storage and placement under the action of the long baffle and the first protrusion limiting the hinged plate, thereby facilitating the separate detection of pH and salinity, effectively improving the detection efficiency, and ensuring the detection accuracy of pH and salinity;

[0029] 2. The present invention is provided with a driving mechanism, which can drive the sampling mechanism to move up and down when working, so that the drill bit can drill holes of different depths as required, thereby collecting soil at different depths for the detection of pH and salinity;

[0030] 3. The present invention is provided with a cleaning mechanism. After the soil samples inside the two collection boxes are tested, the cleaning mechanism cleans the inside of the collection boxes in time, thereby facilitating the next use of the detection device and avoiding deviations in the detection results due to differences in soil samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the device of the present invention;

[0032] Figure 2 It is a schematic diagram of the cross-sectional structure of the upper tower body of the present invention;

[0033] Figure 3 It is a schematic diagram of the sampling mechanism structure of the present invention;

[0034] Figure 4 It is a schematic diagram of the sealing mechanism structure of the present invention;

[0035] Figure 5 A schematic diagram of the structure of the sampling station and the salt detection mechanism of the present invention;

[0036] Figure 6 A schematic diagram of the cleaning mechanism structure of the present invention;

[0037] Figure 7 It is a schematic diagram of the left side structure of the collecting mechanism of the present invention;

[0038] Figure 8 It is a schematic diagram of the right side structure of the collecting mechanism of the present invention;

[0039] Fig. 9 It is a schematic diagram of the stirring mechanism structure of the present invention;

[0040] Fig.10 It is a schematic diagram of the cross-sectional structure of the sampling platform of the present invention;

[0041] Fig.11 for Figure 8 Enlarged view of point A in the middle;

[0042] Fig.12 for Fig.10 Enlarged view of point B in the middle.

[0043] Figure numerals: 1, sampling table; 11, collecting box; 12, first through hole; 13, groove; 14, feeding port; 141, long stop bar; 142, first protrusion; 15, feeding port; 151, guide rail; 16, first fixing block; 161, latch; 17, liquid outlet; 18, water injection pipe; 19, second through hole; 2, driving mechanism; 21, support frame; 22, first motor; 23, threaded rod; 24, screw sleeve groove; 25, first guide rod; 3, sampling mechanism; 31, fixing seat; 32, motor table; 33, second motor; 34, first rotating rod; 35, drill bit; 36, first connecting rod; 37, first moving plate; 38, screw sleeve; 4, stirring mechanism; 41, third motor; 42, second rotating rod; 43, stirring sheet; 5, salt detection mechanism; 51, salt detector; 5 2. Electric wire; 53. Probe; 54. Fixed frame; 55. Electric telescopic rod; 6. Collecting mechanism; 61. Second fixed block; 611. Collecting trough; 612. Fixed rod; 62. Hinge plate; 621. Baffle plate; 622. Second protrusion; 63. Spring; 64. Rotating shaft; 65. Rotating block; 651. Slide groove; 652. Semicircular groove; 653. Magnet; 7. Cleaning mechanism; 71. Fourth motor; 72. Reciprocating screw rod; 721. First bevel gear; 73. Second movable plate; 74. Second connecting rod; 75. Cleaning plate; 76. Rotating bracket; 761. Second bevel gear; 77. Third fixed block; 78. Second guide rod; 8. Fixing mechanism; 81. Support leg; 82. Grounding plate; 83. Positioning pile; 9. Sealing mechanism; 91. Sealing plate; 92. Guide groove; 93. Socket. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0045] See also Figure 1-Figure 12The present application provides a soil pH and salinity detection device, including a sampling platform 1, a driving mechanism 2 is fixedly mounted on the surface of the sampling platform 1, a sampling mechanism 3 is slidably connected between the sampling platform 1 and the driving mechanism 2, and the driving mechanism 2 is used to drive the sampling mechanism 3 to perform sampling work, and also includes;

[0046] like Figure 1 , Figure 5 and Fig.10 As shown, two collecting boxes 11 are provided inside the sampling platform 1, a first through hole 12 is provided on the surface of the sampling platform 1, a groove 13 is provided inside the sampling platform 1, a feed port 14 is provided on one side of the two collecting boxes 11, the first through hole 12 and the feed port 14 are both connected to the inside of the groove 13, a long baffle 141 is fixedly installed on the side of the feed port 14, a first protrusion 142 is fixedly installed on the lower surface of the long baffle 141, a discharge port 15 is provided at the bottom of the two collecting boxes 11, guide rails 151 are fixedly installed on both sides of the discharge port 15, first fixed blocks 16 are fixedly installed on both sides of the sampling platform 1, a latch 161 is movably inserted inside the first fixed block 16, a liquid outlet 17 is fixedly installed on one side of the left collecting box 11, water injection pipes 18 are fixedly installed on the surfaces of the two collecting boxes 11, and a second through hole 19 is provided on the surface of the right collecting box 11.

[0047] Further, in this embodiment, two collecting boxes 11 are used to place two soil samples, which are used for pH and salinity detection respectively. The first through hole 12 and the groove 13 are set for the up and down movement of the fixing seat 31. The soil sample is transported to the inside of the collecting box 11 through the feed port 14 to wait for detection. The long baffle 141 and the first protrusion 142 are set to rotate the hinged plate 62 to an inclined straight line state so as to facilitate the transportation of the soil to the inside of the collecting boxes 11 on both sides. After the detection is completed, the soil is discharged through the discharge port 15 for the next use. The guide rail 151 cooperates with the sealing plate 91 to seal the inside of the collecting box 11. After the sealing plate 91 is inserted into the discharge port 15, the sealing plate 91 is fixed by the pin 161. The liquid outlet 17 is used to extract the soil solution in the left collection box 11 for pH detection. The water injection pipe 18 is set to facilitate the addition of different proportions of water to the inside of the two collection boxes 11. The second through hole 19 is set to facilitate the up and down movement of the probe 53.

[0048] like Figure 2 As shown, the driving mechanism 2 includes a support frame 21, which is fixedly mounted on the surface of the sampling table 1. A first motor 22 is fixedly mounted on one side of the support frame 21. A threaded rod 23 is transmission-connected to the output end of the first motor 22. Screw sleeve grooves 24 are provided on both sides of the support frame 21. The threaded rod 23 is rotatably connected to the inside of the left screw sleeve groove 24. A first guide rod 25 is fixedly mounted to the inside of the right screw sleeve groove 24.

[0049] Furthermore, in this embodiment, when the first motor 22 is started, the threaded rod 23 rotates, and the first movable plate 37 can be moved downward through the connection between the screw sleeve 38 and the threaded rod 23, thereby driving the drill bit 35 of the sampling mechanism 3 to move downward for drilling and sampling. The setting of the screw sleeve groove 24 and the first guide rod 25 makes the first movable plate 37 more stable when moving up and down and prevents the first movable plate 37 from deviating left and right.

[0050] like Figure 2 and Figure 3 As shown, the sampling mechanism 3 includes a fixed seat 31, which is slidably connected to the first through hole 12 and the groove 13. A motor table 32 is fixedly installed at one end of the fixed seat 31, and a second motor 33 is fixedly installed on the surface of the motor table 32. The output end of the second motor 33 is transmission-connected to a first rotating rod 34, and the first rotating rod 34 is rotatably connected to the inside of the fixed seat 31. A drill bit 35 is fixedly installed on the end of the first rotating rod 34. A plurality of first connecting rods 36 are fixedly installed on the surface of the motor table 32, and a first movable plate 37 is fixedly installed on the top of the first connecting rod 36. Screw sleeves 38 are fixedly installed on both sides of the first movable plate 37. The left screw sleeve 38 is threadedly connected to the surface of the threaded rod 23, and the right screw sleeve 38 is slidably connected to the surface of the first guide rod 25. The two screw sleeves 38 are slidably connected to the inside of the screw sleeve groove 24.

[0051] Furthermore, in this embodiment, when the second motor 33 is started, the first rotating rod 34 rotates. At this time, under the action of the first motor 22, the sampling mechanism 3 moves downward as a whole, so that the drill bit 35 can perform ground drilling work. The motor table 32 is used to place the second motor 33. Through the connection of the first connecting rod 36, the first movable plate 37 can drive the fixed seat 31 and the drill bit 35 to move downward as a whole when it moves downward.

[0052] A stirring mechanism 4 is fixedly installed inside the left side of the sampling platform 1, a salt detection mechanism 5 is fixedly installed on the right surface of the sampling platform 1, and a collecting mechanism 6 for collecting soil is symmetrically installed on the surface of the sampling mechanism 3;

[0053] like Fig. 9 As shown, the stirring mechanism 4 includes a third motor 41, which is fixedly mounted on the surface of the left collection box 11. The output end of the third motor 41 is transmission-connected to a second rotating rod 42, and a plurality of stirring blades 43 are fixedly mounted on the surface of the second rotating rod 42. The second rotating rod 42 and the plurality of stirring blades 43 are both rotationally connected to the inside of the left collection box 11.

[0054] Furthermore, in this embodiment, after the soil sample is transported to the inside of the left collection box 11, water is added through the water injection pipe 18, the third motor 41 is started, and the second rotating rod 42 rotates, driving the plurality of stirring blades 43 to stir the soil sample and water, so that the soil and water are mixed more evenly. After standing for a period of time, the clear water part on the surface of the soil solution flows out through the liquid outlet 17, and the pH value can be tested by the test paper at this time.

[0055] like Figure 5 As shown, the salt detection mechanism 5 includes a salt detector 51, which is fixedly mounted on the surface of the right collecting box 11. A wire 52 is fixedly connected inside the salt detector 51, and a probe 53 is fixedly mounted on the end of the wire 52. The probe 53 is slidably connected inside the right collecting box 11. A fixing frame 54 is fixedly mounted on the surface of the right collecting box 11, and an electric telescopic rod 55 is fixedly mounted on the surface of the fixing frame 54. The end of the electric telescopic rod 55 is fixedly connected to the surface of the probe 53. The wire 52, the electric telescopic rod 55 and the probe 53 are all slidably connected inside the second through hole 19.

[0056] Furthermore, in this embodiment, after the soil sample is transported to the inside of the right collection box 11, the electric telescopic rod 55 is started. The electric telescopic rod 55 works to move the probe 53 at the end of the salt detector 51 downward and contact the soil sample to perform salt detection. The fixing frame 54 fixes the electric telescopic rod 55 and is set at a certain distance from the surface of the sampling platform 1. After the detection is completed, the probe 53 rises to the surface of the sampling platform 1, and the probe 53 can be cleaned for easy use next time.

[0057] like Figure 7 , Figure 8 and Fig.12 As shown, the collecting mechanism 6 includes a second fixed block 61, a collecting groove 611 is provided on the surface of the second fixed block 61, a fixing rod 612 is fixedly installed on the surface of the second fixed block 61, a hinged plate 62 is hinged at the bottom end of the second fixed block 61, a symmetrical baffle 621 is fixedly installed on the surface of the hinged plate 62, a second protrusion 622 is fixedly installed on the other end surface of the hinged plate 62, a symmetrical spring 63 is fixedly installed on the surface of the collecting groove 611, the other end of the spring 63 is fixedly connected to the surface of the hinged plate 62, a rotating shaft 64 is rotatably connected to both sides of the hinged plate 62, a rotating block 65 is fixedly installed on the surface of the rotating shaft 64, a sliding groove 651 is provided on the surface of the rotating block 65, a semicircular groove 652 is provided at the middle position of the sliding groove 651, a magnet 653 is fixedly installed inside the semicircular groove 652, and the fixing rod 612 is slidably connected inside the sliding groove 651 and the semicircular groove 652.

[0058] In the present embodiment, when the fixing seat 31 moves downward, the two collecting mechanisms 6 move downward at the same time. In the initial state, the outer diameter of the collecting groove 611 formed by the hinge plate 62 and the second fixing block 61 is larger than the outer diameter of the drill bit 35. When the collecting mechanism 6 moves to the inside of the drill hole, the hinge plate 62 is squeezed by the drill hole and fits in the direction of the second fixing block 61. At the same time, the fixing rod 612 moves to the leftmost part of the slide groove 651. At this time, the outer diameter of the collecting groove 611 is consistent with the outer diameter of the drill bit 35. After the drill bit 35 reaches a certain depth, it stops rotating and starts to rise. At this time, under the action of the spring 63, the hinge plate 62 moves away from the surface of the second fixing block 61 and fits in the inside of the drill hole. Because the surface of the hinge plate 62 is set to be inclined, the surface of the drill hole is The soil is scraped so that it can slide into the collecting trough 611. The fixing rod 612 moves to the semicircular groove 652 at this time, and the fixing rod 612 is attracted by the magnet 653, so that the hinge plate 62 can keep scraping the soil. After the drill bit 35 moves out of the drill hole, the hinge plate 62 continues to rise, and the end of the hinge plate 62 contacts the long baffle 141. The first protrusion 142 intercepts the second protrusion 622, so that the hinge plate 62 rotates after being pressurized until it forms an inclined straight line with the second fixing block 61. The fixing rod 612 moves to the rightmost position of the slide 651, and the soil sample inside the collecting trough 611 automatically falls into the collection boxes 11 on both sides for placement and waiting for detection.

[0059] A cleaning mechanism 7 is fixedly installed inside the sampling platform 1 , a fixing mechanism 8 is fixedly installed on the lower surface of the sampling platform 1 , and a sealing mechanism 9 is slidably connected inside the sampling platform 1 .

[0060] like Figure 6 As shown, the cleaning mechanism 7 includes a fourth motor 71, which is fixedly mounted on the surface of the right collection box 11. Two reciprocating screw rods 72 are rotatably connected inside the sampling table 1. The output end of the fourth motor 71 is transmission-connected to one end of a reciprocating screw rod 72. The surfaces of the two reciprocating screw rods 72 are both threadedly connected with a second movable plate 73. A symmetrical second connecting rod 74 is fixedly mounted on the lower surface of the second movable plate 73. A cleaning plate 75 is fixedly mounted on the end of the second connecting rod 74. The two cleaning plates 75 are both slidably connected to the inside of the two collection boxes 11 and fit with the inner bottom of the two collection boxes 11. The other end of a reciprocating screw rod 72 passes through the right collecting box 11 and extends to the outside. The other ends of the two reciprocating screw rods 72 are fixedly installed with a first bevel gear 721. A third fixed block 77 is fixedly installed on the back of the sampling table 1. The third fixed block 77 is rotatably connected to a rotating bracket 76. Second bevel gears 761 are fixedly installed at both ends of the rotating bracket 76. The two second bevel gears 761 are respectively meshed with the two first bevel gears 721. Second guide rods 78 are fixedly installed inside the two collecting boxes 11. The two second movable plates 73 are slidably connected to the surfaces of the two second guide rods 78.

[0061] Furthermore, in this embodiment, when it is necessary to clean the inside of the collecting box 11, the fourth motor 71 is started, and the reciprocating screw 72 on the right side rotates, so that the second movable plate 73 can move forward and backward, and then the cleaning plate 75 is driven to move at the bottom of the collecting box 11 through the connection with the second connecting rod 74, so that the soil sample and water inside the collecting box 11 are cleaned. When the reciprocating screw 72 on the right side rotates, the rotating bracket 76 can rotate through the meshing action of the first bevel gear 721 and the second bevel gear 761, so that the inside of the left collecting box 11 can be cleaned at the same time, and the third fixed block 77 supports the rotating bracket 76, and the second guide rod 78 makes the second movable plate 73 more stable when moving.

[0062] like Figure 2 As shown, the fixing mechanism 8 includes two supporting legs 81 , which are fixedly mounted on the lower surface of the sampling platform 1 , and a grounding plate 82 is fixedly mounted on the ends of the supporting legs 81 , and a plurality of positioning piles 83 are fixedly mounted on the lower surface of the grounding plate 82 .

[0063] In this embodiment, after the detection device is moved to a suitable position, the positioning piles 83 are inserted into the ground, the grounding plate 82 contacts the ground to support the detection device, and the supporting legs 81 support the detection device.

[0064] like Figure 2 and Figure 4 As shown, the sealing mechanism 9 includes a sealing plate 91, which is slidably connected inside the discharge port 15, with guide grooves 92 on both sides of the sealing plate 91, and a guide rail 151 is slidably connected inside the guide grooves 92, and a socket 93 is opened on both sides of one end of the sealing plate 91, and a pin 161 is movably inserted inside the socket 93.

[0065] In this embodiment, the sealing mechanism 9 cooperates with the cleaning mechanism 7 to clean the inside of the collection box 11. Before the cleaning work begins, the pins 161 on both sides are pulled out and the sealing plate 91 is taken out. At this time, the discharge port 15 is opened, and part of the soil and water flows out from the inside of the collection box 11. The remaining soil and water can be cleaned by the cleaning mechanism 7.

[0066] The working principle of this embodiment is as follows: the detection device is moved to a suitable position, the positioning pile 83 is inserted into the ground, the grounding plate 82 contacts the ground to support the detection device, the second motor 33 is started first, and the first rotating rod 34 drives the drill bit 35 to rotate. At this time, the first motor 22 is started, and the threaded rod 23 rotates. The connection between the threaded sleeve 38 and the threaded rod 23 enables the first movable plate 37 to move downward, thereby driving the drill bit 35 of the sampling mechanism 3 to move downward for drilling sampling. When the fixed seat 31 moves downward, the two collecting mechanisms 6 move downward at the same time. In the initial state, the outer diameter of the collecting groove 611 formed by the hinged plate 62 and the second fixed block 61 is larger than the outer diameter of the drill bit 35. When the collecting mechanism 6 moves to the inside of the borehole, the hinged plate 62 is squeezed by the borehole. The second fixing block 61 is pressed to fit in the direction of the second fixing block 61, and the fixing rod 612 moves to the leftmost position of the slide groove 651. At this time, the outer diameter of the collecting groove 611 is consistent with the outer diameter of the drill bit 35. After the drill bit 35 reaches a certain depth, it stops rotating and starts to rise. At this time, under the action of the spring 63, the hinge plate 62 moves away from the surface of the second fixing block 61 and fits in the inside of the drill hole. Because the surface of the hinge plate 62 is set to be inclined, the soil on the surface of the drill hole is scraped, so that the soil can slide into the collecting groove 611. The fixing rod 612 moves to the semicircular groove 652 at this time, and the fixing rod 612 is attracted by the magnet 653, so that the hinge plate 62 can keep scraping the soil. After the drill bit 35 moves out of the drill hole, the hinge plate 62 continues to rise, and the end of the hinge plate 62 is aligned with the long stop bar 141. The first protrusion 142 intercepts the second protrusion 622, so that the hinged plate 62 rotates after being pressurized until it forms an inclined straight line with the second fixed block 61, and the fixed rod 612 moves to the rightmost position of the slide 651, and the soil sample in the collecting tank 611 automatically falls into the collecting boxes 11 on both sides for placement and waiting for detection. After the soil sample is transported to the left collecting box 11, water is added through the water injection pipe 18, the third motor 41 is started, and the second rotating rod 42 rotates, driving the multiple stirring blades 43 to stir the soil sample and water, so that the soil and water are mixed more evenly. After standing for a period of time, the clear water part on the surface of the soil solution flows out through the liquid outlet 17. At this time, the pH value of the soil can be tested by the test paper. After the sample is transported to the inside of the right collection box 11, the electric telescopic rod 55 is started. The electric telescopic rod 55 works to move the probe 53 at the end of the salt detector 51 downward and contact the soil sample for salt detection. After the detection is completed, the probe 53 rises to the surface of the sampling platform 1, and finally the fourth motor 71 is started. The reciprocating screw 72 on the right rotates, so that the second movable plate 73 can move back and forth, and then the cleaning plate 75 is driven to move at the bottom of the collection box 11 through the connection with the second connecting rod 74, so as to clean the soil sample and water inside the collection box 11. When the reciprocating screw 72 on the right rotates, the rotating bracket 76 can rotate through the meshing action of the first bevel gear 721 and the second bevel gear 761, so that the inside of the left collection box 11 can be cleaned at the same time.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A soil pH and salinity detection device, comprising a sampling station (1), characterized in that: The sampling platform (1) has a driving mechanism (2) fixedly mounted on its surface, the sampling platform (1) and the driving mechanism (2) are internally slidably connected with a sampling mechanism (3), the driving mechanism (2) being used to drive the sampling mechanism (3) to perform sampling work, and further comprising: A stirring mechanism (4) is fixedly installed inside the left side of the sampling platform (1), a salt detection mechanism (5) is fixedly installed on the right side surface of the sampling platform (1), and a collecting mechanism (6) for collecting soil is symmetrically installed on the surface of the sampling mechanism (3); A cleaning mechanism (7) is fixedly installed inside the sampling platform (1), a fixing mechanism (8) is fixedly installed on the lower surface of the sampling platform (1), and a sealing mechanism (9) is slidably connected inside the sampling platform (1); The collecting mechanism (6) comprises a second fixed block (61), a collecting groove (611) is provided on the surface of the second fixed block (61), a fixing rod (612) is fixedly mounted on the surface of the second fixed block (61), a hinge plate (62) is hingedly connected to the bottom end of the second fixed block (61), a symmetrical baffle (621) is fixedly mounted on the surface of the hinge plate (62), a second protrusion (622) is fixedly mounted on the other end surface of the hinge plate (62), and a symmetrical spring (63) is fixedly mounted on the surface of the collecting groove (611). The other end of the spring (63) is fixedly connected to the surface of the hinge plate (62); the hinge plate (62) is rotatably connected to a rotating shaft (64) on both sides; a rotating block (65) is fixedly installed on the surface of the rotating shaft (64); a sliding groove (651) is provided on the surface of the rotating block (65); a semicircular groove (652) is provided at the middle position of the sliding groove (651); a magnet (653) is fixedly installed inside the semicircular groove (652); and the fixed rod (612) is slidably connected inside the sliding groove (651) and the semicircular groove (652); The cleaning mechanism (7) comprises a fourth motor (71), the fourth motor (71) being fixedly mounted on the surface of the right collection box (11), the sampling platform (1) being internally rotatably connected to two reciprocating screws (72), the output end of the fourth motor (71) being drivingly connected to one end of a reciprocating screw (72), the surfaces of the two reciprocating screws (72) being threadedly connected to a second movable plate (73), the lower surface of the second movable plate (73) being fixedly mounted with a symmetrical second connecting rod (74), the end of the second connecting rod (74) being fixedly mounted with a cleaning plate (75), the two cleaning plates (75) being slidably connected to the inside of the two collection boxes (11) and being in contact with the inner bottom of the two collection boxes (11), The other end of one of the reciprocating screw rods (72) passes through the right collection box (11) and extends to the outside. The other ends of the two reciprocating screw rods (72) are fixedly mounted with a first bevel gear (721). A third fixed block (77) is fixedly mounted on the back of the sampling table (1). The third fixed block (77) is rotatably connected to a rotating bracket (76) inside. Second bevel gears (761) are fixedly mounted at both ends of the rotating bracket (76). The two second bevel gears (761) are respectively meshed with the two first bevel gears (721). Second guide rods (78) are fixedly mounted inside the two collection boxes (11). The two second movable plates (73) are slidably connected to the surfaces of the two second guide rods (78).

2. A soil pH and salinity detection device according to claim 1, characterized in that: Two collecting boxes (11) are provided inside the sampling platform (1), a first through hole (12) is provided on the surface of the sampling platform (1), a groove (13) is provided inside the sampling platform (1), a feed port (14) is provided on one side of the two collecting boxes (11), the first through hole (12) and the feed port (14) are both connected to the inside of the groove (13), a long stop bar (141) is fixedly installed on the side of the feed port (14), a first protrusion (142) is fixedly installed on the lower surface of the long stop bar (141), and the two A discharge port (15) is provided at the bottom of the collecting box (11), guide rails (151) are fixedly installed on both sides of the discharge port (15), first fixed blocks (16) are fixedly installed on both sides of the sampling platform (1), a latch (161) is movably inserted inside the first fixed block (16), a liquid outlet (17) is fixedly installed on one side of the left collecting box (11), water injection pipes (18) are fixedly installed on the surfaces of the two collecting boxes (11), and a second through hole (19) is provided on the surface of the right collecting box (11).

3. A soil pH and salinity detection device according to claim 1, characterized in that: The driving mechanism (2) comprises a support frame (21), the support frame (21) being fixedly mounted on the surface of the sampling platform (1), a first motor (22) being fixedly mounted on one side of the support frame (21), an output end of the first motor (22) being drivingly connected to a threaded rod (23), screw sleeve grooves (24) being provided on both sides of the support frame (21), the threaded rod (23) being rotatably connected inside the left screw sleeve groove (24), and a first guide rod (25) being fixedly mounted inside the right screw sleeve groove (24).

4. A soil pH and salinity detection device according to claim 3, characterized in that: The sampling mechanism (3) comprises a fixed seat (31), the fixed seat (31) being slidably connected to the first through hole (12) and the groove (13), a motor platform (32) being fixedly mounted on one end of the fixed seat (31), a second motor (33) being fixedly mounted on the surface of the motor platform (32), a first rotating rod (34) being drivingly connected to the output end of the second motor (33), the first rotating rod (34) being rotatably connected to the inside of the fixed seat (31), a drill bit (35) being fixedly mounted on the end of the first rotating rod (34), a plurality of first connecting rods (36) being fixedly mounted on the surface of the motor platform (32), a first moving plate (37) being fixedly mounted on the top end of the first connecting rod (36), screw sleeves (38) being fixedly mounted on both sides of the first moving plate (37), the left screw sleeve (38) being threadedly connected to the surface of the threaded rod (23), the right screw sleeve (38) being slidably connected to the surface of the first guide rod (25), and the two screw sleeves (38) being slidably connected to the inside of the screw sleeve groove (24).

5. A soil pH and salinity detection device according to claim 1, characterized in that: The stirring mechanism (4) comprises a third motor (41), the third motor (41) being fixedly mounted on the surface of the left collection box (11), the output end of the third motor (41) being drivingly connected to a second rotating rod (42), a plurality of stirring blades (43) being fixedly mounted on the surface of the second rotating rod (42), and the second rotating rod (42) and the plurality of stirring blades (43) are both rotatably connected inside the left collection box (11).

6. A soil pH and salinity detection device according to claim 2, characterized in that: The salt detection mechanism (5) comprises a salt detector (51), the salt detector (51) being fixedly mounted on the surface of the right collection box (11), a wire (52) being fixedly connected inside the salt detector (51), a probe (53) being fixedly mounted on the end of the wire (52), the probe (53) being slidably connected inside the right collection box (11), a fixing frame (54) being fixedly mounted on the surface of the right collection box (11), an electric telescopic rod (55) being fixedly mounted on the surface of the fixing frame (54), the end of the electric telescopic rod (55) being fixedly connected to the surface of the probe (53), and the wire (52), the electric telescopic rod (55) and the probe (53) are all slidably connected inside the second through hole (19).

7. A soil pH and salinity detection device according to claim 1, characterized in that: The fixing mechanism (8) comprises two supporting legs (81), the two supporting legs (81) being fixedly mounted on the lower surface of the sampling platform (1), a grounding plate (82) being fixedly mounted on the ends of the supporting legs (81), and a plurality of positioning piles (83) being fixedly mounted on the lower surface of the grounding plate (82).

8. A soil pH and salinity detection device according to claim 2, characterized in that: The sealing mechanism (9) comprises a sealing plate (91), the sealing plate (91) being slidably connected inside the feed opening (15), guide grooves (92) being provided on both sides of the sealing plate (91), the guide rail (151) being slidably connected inside the guide grooves (92), and insertion holes (93) being provided on both sides of one end of the sealing plate (91), and the latch (161) being movably inserted inside the insertion hole (93).

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