A sampling device for testing soil quality by returning straw to fields

Abstract

The present invention discloses a sampling device for detecting the quality of soil after returning straw to the field, and relates to the technical field of soil detection, including a sampling tube, wherein two groups of grips are symmetrically fixedly connected to the outside of the sampling tube, a moving rod is slidably sleeved up and down in the sampling tube, a pressing plate is fixedly connected to the lower side of the moving rod, a rubber sleeve is fixedly sleeved on the outside of the pressing plate, a stabilizing component is installed in the sampling tube to prevent soil from slipping out of the sampling tube, and the stabilizing component includes multiple groups of stabilizing grooves uniformly circumferentially opened on the side wall of the sampling tube, and a connecting rod 1 is slidably sleeved on the upper side of the multiple groups of stabilizing grooves, and the connecting rod 1 penetrates the upper side wall of the stabilizing groove. In the process of soil sampling, when the volume of the sampled soil in the sampling tube reaches a certain amount, the stabilizing component can be automatically started to form a restriction on the soil in the sampling tube, reduce the possibility of the soil in the sampling tube slipping out of the sampling tube, and ensure the normal effect of each soil sampling.

Description

Technical Field

[0001] The invention relates to the field of soil detection, and in particular to a sampling device for detecting soil quality when returning straw to fields. Background Art

[0002] Returning straw to the field is a measure to return straw to the field, which also has the effect of increasing fertilizer and yield;

[0003] After returning the straw to the field, the soil needs to be tested for quality and the content of various substances in it. Soil sampling is one of the most important steps. When sampling the soil, insert the sampling tube into the soil, then take out the sampling tube, discharge the soil in the sampling tube, and analyze the sampled soil. The overall operation is simple.

[0004] However, in the actual working process, when the sampling cylinder is taken out from the soil, the soil in the sampling cylinder often slides out of the sampling cylinder, thereby reducing the sampling effect, and after one sampling is completed, a certain amount of soil will remain inside the sampling cylinder (due to the sharp part on the front side of the sampling cylinder), which requires timely cleaning, which is time-consuming and labor-intensive and delays the sampling efficiency. Secondly, when the soil is taken out of the sampling cylinder, the soil inside the sampling cylinder is mainly squeezed out by a pressing plate, and a certain amount of soil will also remain on the lower side of the pressing plate (especially on the rubber sleeve on the outside of the pressing plate). The pressing plate also needs to be cleaned, further increasing unnecessary workload. Therefore, a sampling device for soil quality detection of straw return to field is provided. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a sampling device for detecting soil quality after returning straw to fields, which solves the problems in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sampling device for detecting soil quality by returning straw to the field, comprising a sampling barrel, two groups of grips are symmetrically and fixedly connected to the outer side of the sampling barrel, a moving rod is slidably sleeved in the sampling barrel, a squeezing plate is fixedly connected to the lower side of the moving rod, a rubber sleeve is fixedly sleeved on the outer side of the squeezing plate, a stabilizing component is installed in the sampling barrel to prevent soil from slipping out of the sampling barrel, the stabilizing component comprises a plurality of groups of stabilizing grooves uniformly circumferentially opened on the side wall of the sampling barrel, a connecting rod 1 is slidably sleeved on the upper side of the plurality of groups of the stabilizing grooves, and the connecting rod 1 penetrates through the sampling barrel On the upper side wall of the stabilizing groove, the connecting rod one is fixedly connected to the connecting rod two, the outer side of the connecting rod two is rotatably sleeved with a stabilizing plate, the inner side of the stabilizing plate is rotatably sleeved with a connecting rod three, the side wall of the connecting rod three is fixedly connected to the connecting rod four, the outer side of the connecting rod four is slidably sleeved with a fixed cylinder, the fixed cylinder and the stabilizing groove are fixedly connected, the connecting rod one is fixedly connected to a top plate, a spring one is fixedly connected between the top plate and the sampling cylinder, the outer side of the moving rod is slidably sleeved with a moving ring, a plurality of connecting rods are fixedly connected between the moving ring and the top plate, and the outer side of the moving rod is also threadedly sleeved with a threaded ring.

[0007] Preferably, a vibration component for cleaning the soil outside the rubber sleeve is installed on the lower side of the extrusion plate, and the vibration component includes multiple groups of cavities opened in the extrusion plate, multiple groups of cavities are rotatably sleeved with rotating shafts, the outer side of the rotating shaft is fixedly sleeved with gears, multiple groups of cavities are slidably connected with racks, a spring five is fixedly connected between the rack and the cavity, a square rod is fixedly connected to the rack, and a baffle is fixedly connected to the square rod, and multiple groups of fixed boxes are evenly fixedly connected to the lower side of the extrusion plate in a circumferential direction, a connecting rod five is slidably sleeved on the lower side of the rotating shaft, a spring three is fixedly connected between the connecting rod five and the rotating shaft, and a turntable is fixedly connected to the lower side of the connecting rod five.

[0008] Preferably, the rotating shaft is located in a fixed box and is evenly and fixedly connected to multiple groups of rotating rods in the circumferential direction. A vibration plate is slidably connected in the fixed box. A second spring is fixedly connected between the vibration plate and the side wall of the fixed box. The vibration plate is fixedly connected to a vibration rod.

[0009] Preferably, a cleaning component for cleaning the inner wall of the sampling barrel is installed in the sampling barrel, and the cleaning component includes a cleaning ring slidably sleeved on the inner side of the sampling barrel, a limiting plate is fixedly sleeved on the outer side of the connecting rod four, a trapezoidal plate one is fixedly connected to the lower side of the limiting plate, connecting grooves are opened on the lower sides of multiple groups of the stabilizing grooves, a trapezoidal plate two is slidably sleeved up and down in the connecting groove, a spring four is fixedly connected between the trapezoidal plate two and the connecting groove, a connecting rod six is ​​fixedly connected to the lower side of the trapezoidal plate two, and the connecting rod six and the cleaning ring are fixedly connected.

[0010] Preferably, the contact surfaces of the trapezoidal plate 1 and the trapezoidal plate 2 are both smoothly arranged.

[0011] Preferably, an annular groove is provided in the sampling tube, a fixing ring is slidably sleeved in the annular groove, and the fixing ring is fixedly connected to the cleaning ring.

[0012] Preferably, the cross section of the fixing ring is trapezoidal.

[0013] The present invention has the following beneficial effects:

[0014] First, in the present device, especially in the process of soil sampling, when the volume of the sampled soil in the sampling tube reaches a certain amount, the stabilizing component can be automatically activated to form a restriction on the soil in the sampling tube, thereby reducing the possibility of the soil in the sampling tube slipping out of the sampling tube and ensuring the normal effect of each soil sampling;

[0015] Secondly, in the process of discharging the sampled soil from the sampling tube, especially when the squeezing plate moves to the position opposite to the stabilizing plate, the sampled soil has basically been removed from the sampling tube, and the soil remaining on the rubber sleeve outside the squeezing plate begins to be cleaned;

[0016] At the same time, it can not only drive the turntable to rotate, but also drive the vibration rod to move back and forth. The vibration rod and the rubber sleeve are against each other, so that the rubber sleeve vibrates slightly, so that the soil outside the rubber sleeve further falls off the rubber sleeve, thereby improving the cleaning effect;

[0017] Furthermore, in the above cleaning process, not only the soil in the rubber sleeve can be cleaned, but also the soil inside the sampling tube (especially the sharp part at the lower side of the sampling tube) can be cleaned, thereby reducing the workload of manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0020] Figure 3 It is a schematic diagram of the connection between the moving ring and the moving rod in the present invention;

[0021] Figure 4 This is a schematic diagram of the internal connection of the stabilizing groove in the present invention;

[0022] Figure 5 It is a state change diagram of the stabilizing plate in the present invention;

[0023] Figure 6 It is a schematic diagram of the connection between the moving rod and the extrusion plate in the present invention;

[0024] Figure 7 It is a bottom view connection diagram of the moving rod and the extrusion plate in the present invention;

[0025] Figure 8 This is a schematic diagram of the internal connection of the cavity in the present invention;

[0026] Fig. 9 This is a schematic diagram of the internal connection of the fixed box in the present invention;

[0027] Fig.10 It is a schematic diagram of the connection between the rotating shaft and the connecting rod 5 in the present invention;

[0028] Fig.11 It is a cross-sectional connection diagram of the cleaning ring and the stabilizing groove in the present invention.

[0029] In the figure: 1, sampling cylinder; 2, grip; 3, moving rod; 4, rubber sleeve; 5, stabilizing assembly; 501 threaded ring; 502, top plate; 503, connecting rod 1; 504, spring 1; 505, moving ring; 506, stabilizing groove; 507, connecting rod 2; 508, stabilizing plate; 509, connecting rod 3; 510, connecting rod 4; 511, fixed cylinder; 6, extrusion plate; 701, turntable; 702, fixed box; 703, cavity; 704, rotating shaft; 705, gear; 706, rack; 707, spring five; 708, square rod; 709, baffle; 710, rotating rod; 711, vibration rod; 712, spring two; 713, vibration plate; 714, spring three; 715, connecting rod five; 81, cleaning ring; 82, limit plate; 83, trapezoidal plate one; 84, connecting groove; 85, connecting rod six; 86, spring four; 87, trapezoidal plate two; 88, fixing ring. DETAILED DESCRIPTION

[0030] Reference Figure 1-Figure 11 A sampling device for detecting soil quality by returning straw to the field, comprising a sampling tube 1, two sets of grips 2 are symmetrically and fixedly connected to the outside of the sampling tube 1, a moving rod 3 is slidably sleeved in the sampling tube 1, a squeezing plate 6 is fixedly connected to the lower side of the moving rod 3, and a rubber sleeve 4 is fixedly sleeved on the outside of the squeezing plate 6;

[0031] First, when it is necessary to sample the soil, the sampling tube 1 is moved to the upper side of the sampling point, the sampling tube 1 is moved downward by holding the handle 2, so that the sampling tube 1 penetrates into the soil, and the sampling operation is started. When the soil in the sampling tube 1 reaches a certain volume, the sampling tube 1 is pulled out of the soil, and then the moving rod 3 is moved downward. The moving rod 3 drives the squeezing plate 6 and the rubber sleeve 4 to move downward, and the soil inside the sampling tube 1 is discharged, thereby completing the soil sampling operation. The above are all prior arts and no redundant description is given.

[0032] like Figure 2 , Figure 3 , Figure 4 , Figure 5A stabilizing component 5 is installed in the sampling tube 1 to prevent soil from slipping out of the sampling tube 1. The stabilizing component 5 includes a plurality of stabilizing grooves 506 uniformly circumferentially arranged on the side wall of the sampling tube 1. A connecting rod 1 503 is slidably sleeved on the upper side of the plurality of stabilizing grooves 506. The connecting rod 1 503 penetrates the upper side wall of the stabilizing groove 506. The connecting rod 1 503 is located in the stabilizing groove 506 and one end thereof is fixedly connected to a connecting rod 2 507. A stabilizing plate 508 is rotatably sleeved on the outer side of the connecting rod 2 507. A connecting rod 3 509 is rotatably sleeved in the stabilizing plate 508. The side wall of the connecting rod 3 509 is fixed. A connecting rod 510 is fixedly connected, a fixed cylinder 511 is slidably sleeved on the outer side of the connecting rod 510, the fixed cylinder 511 and the stabilizing groove 506 are fixedly connected, a connecting rod 503 is fixedly connected to a top plate 502 on the side away from the stabilizing groove 506, a spring 504 is fixedly connected between the top plate 502 and the sampling tube 1, a moving ring 505 is slidably sleeved on the outer side of the moving rod 3, a plurality of connecting rods are fixedly connected between the moving ring 505 and the top plate 502, a threaded ring 501 is also threadedly sleeved on the outer side of the moving rod 3, and the threaded ring 501 is located on the lower side of the moving ring 505;

[0033] First, before the soil sampling operation, the threaded ring 501 is rotated to adjust the position of the threaded ring 501 on the moving rod 3. Secondly, during the soil sampling process, when the soil in the sampling tube 1 gradually increases, the soil in the sampling tube 1 and the squeezing plate 6 abut against each other and drive the squeezing plate 6 to move upward, the squeezing plate 6 drives the moving rod 3 to move upward, and the moving rod 3 drives the threaded ring 501 to move upward. When the threaded ring 501 and the moving ring 505 abut against each other, it means that there is more soil inside the sampling tube 1 and the soil inside the sampling tube 1 meets the sampling requirements. At this time, the moving ring 505 is moved downward, and the moving ring 505 drives the top plate 502 to move downward. The top plate 502 presses While compressing spring 1 504, it drives connecting rod 1 503 to move downward, and connecting rod 1 503 drives connecting rod 2 507 to move downward. Under the limiting action of connecting rod 4 510 and fixed tube 511, the lower end of stabilizing plate 508 will not move downward due to the downward movement of connecting rod 1 503, and stabilizing plate 508 will move in the direction away from the side wall of sampling tube 1. Stabilizing plate 508 penetrates deep into the soil and wraps most of the soil, thereby reducing the possibility of soil falling out of sampling tube 1 when sampling tube 1 is moved out of the soil. After sampling of sampling tube 1 is completed, loosen moving ring 505, move moving rod 3 downward, and take out the soil in sampling tube 1.

[0034] like Figure 8 , Fig.10A vibration assembly for cleaning the soil outside the rubber sleeve 4 is installed at the lower side of the extrusion plate 6. The vibration assembly includes multiple groups of cavities 703 opened in the extrusion plate 6. A rotating shaft 704 is rotatably sleeved in the multiple groups of cavities 703. A gear 705 is fixedly sleeved on the outer side of the rotating shaft 704. A rack 706 is slidably connected in the multiple groups of cavities 703. A spring 5 707 is fixedly connected between the rack 706 and the cavity 703. A square rod 708 is fixedly connected to the side of the rack 706 away from the spring 5 707. The square rod 708 runs through the side wall of the cavity 703. A baffle 709 is fixedly connected to one side of the square rod 708 away from the cavity 703, and multiple groups of fixed boxes 702 are evenly fixedly connected to the lower side of the extrusion plate 6 in the circumferential direction. The multiple groups of fixed boxes 702 and the cavity 703 are matched one by one. The rotating shaft 704 runs through the cavity 703. A connecting rod 5 715 is slidably sleeved on the lower side of the rotating shaft 704. A spring 3 714 is fixedly connected between the connecting rod 5 715 and the rotating shaft 704. A rotating disk 701 is fixedly connected to the lower side of the connecting rod 5 715. The rotating disk 701 is located on the lower side of the rubber sleeve 4 and abuts against the rubber sleeve 4.

[0035] When the moving rod 3 drives the extrusion plate 6 to move downward, the rubber sleeve 4 and the stabilizing plate 508 will deform after they abut against each other. Figure 8 Taking the direction as an example, the rubber sleeve 4 and the baffle plate 709 are against each other and drive the baffle plate 709 to move left, the baffle plate 709 drives the square rod 708 to move left, and the square rod 708 drives the rack 706 to move left. While the rack 706 compresses the spring five 707, it drives the meshing gear 705 to rotate counterclockwise, and the gear 705 drives the rotating shaft 704 to rotate counterclockwise. When the baffle plate 709 and the stabilizing plate 508 are against each other, the soil inside the sampling cylinder 1 is basically moved out of the sampling cylinder 1, and there is basically no residual soil on the lower side of the extrusion plate 6. At this time, the rotating rotating shaft 704 drives the connecting rod five 715 to rotate, and the connecting rod drives the turntable 701 to rotate. Under the limiting action of the spring three 714, the turntable 701 is always located at the lower side of the rubber sleeve 4 and against the rubber sleeve 4. Therefore, the rotating turntable 701 will clean the soil remaining on the lower side of the rubber sleeve 4.

[0036] like Fig. 9 The rotating shaft 704 is located inside and outside the fixed box 702 and is evenly fixedly connected to multiple groups of rotating rods 710 in the circumferential direction. A vibration plate 713 is slidably connected inside the fixed box 702. A spring 2 712 is fixedly connected between the vibration plate 713 and the side wall of the fixed box 702. A vibration rod 711 is fixedly connected to the side of the vibration plate 713 away from the rotating rod 710. The vibration rod 711 penetrates the side wall of the fixed box 702, and the vibration rod 711 and the rubber sleeve 4 are against each other.

[0037] During the rotation of the rotating shaft 704, the rotating shaft 704 drives the rotating rod 710 to rotate. When the rotating rod 710 and the vibration plate 713 are against each other, Fig. 9Based on the direction of , the vibration plate 713 will be driven to move rightward. While the vibration plate 713 compresses the spring 2 712, it drives the vibration rod 711 to move. The vibration rod 711 and the rubber sleeve 4 are pressed against each other to squeeze the rubber sleeve 4. When the rotating rod 710 and the vibration plate 713 are disconnected, the vibration plate 713 returns to its original position under the action of the spring 2 712. Therefore, when the rotating shaft 704 drives the rotating rod 710 to rotate, the vibration plate 713 drives the vibration rod 711 to move back and forth. The vibration rod 711 squeezes the rubber sleeve 4 many times, causing the rubber sleeve 4 to vibrate to a certain extent, thereby improving the cleaning effect of the residual soil on the lower side of the rubber sleeve 4.

[0038] like Fig.11 A cleaning assembly for cleaning the inner wall of the sampling cylinder 1 is installed in the sampling cylinder 1, and the cleaning assembly includes a cleaning ring 81 slidably sleeved on the inner side of the sampling cylinder 1, and a limit plate 82 is fixedly sleeved on the outer side of the connecting rod 4 510, and a trapezoidal plate 1 83 is fixedly connected to the lower side of the limit plate 82. A connecting groove 84 is opened on the lower side of the multiple groups of stable grooves 506, and a trapezoidal plate 2 87 is slidably sleeved up and down in the connecting groove 84. The trapezoidal plate 2 87 is located at the lower side of the trapezoidal plate 1 83 and abuts against the trapezoidal plate 1 83. A spring 4 86 is fixedly connected between the trapezoidal plate 2 87 and the connecting groove 84, and a connecting rod 6 85 is fixedly connected to the lower side of the trapezoidal plate 2 87. The connecting rod 6 85 and the cleaning ring 81 are fixedly connected;

[0039] When the baffle 709 and the stabilizing plate 508 abut against each other, not only will the baffle 709 move to the left, but also the stabilizing plate 508 will move toward the inner wall of the sampling tube 1, and the top plate 502 will stretch the spring 1 504 (the movement of the stabilizing plate 508 at this time is opposite to that during the stabilizing operation, that is, Figure 5 In the figure, the stabilizing plate 508 changes from right to left), and at the same time, the connecting rod four 510 drives the trapezoidal plate one 83 to move rightward through the limit plate 82, and the trapezoidal plate one 83 drives the trapezoidal plate two 87 to move downward. While the trapezoidal plate two 87 compresses the spring four 86, it drives the cleaning ring 81 to move downward through the connecting rod six 85 to clean the soil remaining on the lower side wall of the sampling tube 1.

[0040] The contact surfaces of the trapezoidal plate 1 83 and the trapezoidal plate 2 87 are both smooth, and the friction between the trapezoidal plate 1 83 and the trapezoidal plate 2 87 can be ignored, thereby enabling better transmission.

[0041] An annular groove is provided in the sampling tube 1, and a fixing ring 88 is slidably sleeved in the annular groove. The fixing ring 88 and the cleaning ring 81 are fixedly connected to prevent soil from entering the gap between the cleaning ring 81 and the sampling tube 1 during the sampling process.

[0042] The cross section of the fixing ring 88 is set to be trapezoidal, so as to reduce the adverse effects on normal sampling work.

[0043] The working principle of the present invention is as follows: when it is necessary to sample the soil, move the sampling tube 1 to the upper side of the sampling point, hold the handle 2 and move the sampling tube 1 downward, so that the sampling tube 1 penetrates into the soil, and start the sampling operation. When the soil in the sampling tube 1 reaches a certain volume, pull the sampling tube 1 out of the soil, and then move the moving rod 3 downward. The moving rod 3 drives the squeezing plate 6 and the rubber sleeve 4 to move downward, and the soil inside the sampling tube 1 is discharged, thereby completing the soil sampling operation. The above are all prior arts and no redundant description is given.

[0044] Before the soil sampling operation, the threaded ring 501 is first rotated to adjust the position of the threaded ring 501 on the moving rod 3. Secondly, during the soil sampling process, when the soil in the sampling tube 1 gradually increases, the soil in the sampling tube 1 and the squeezing plate 6 abut against each other and drive the squeezing plate 6 to move upward, the squeezing plate 6 drives the moving rod 3 to move upward, and the moving rod 3 drives the threaded ring 501 to move upward. When the threaded ring 501 and the moving ring 505 abut against each other, it means that there is more soil in the sampling tube 1 and the soil in the sampling tube 1 meets the sampling requirements. At this time, the moving ring 505 is moved downward, and the moving ring 505 is moved upward. 05 drives the top plate 502 to move downward, and the top plate 502 compresses the spring 1 504, while driving the connecting rod 1 503 to move downward, and the connecting rod 1 503 drives the connecting rod 2 507 to move downward. Under the limiting action of the connecting rod 4 510 and the fixing tube 511, the lower end of the stabilizing plate 508 will not move downward due to the downward movement of the connecting rod 1 503, and the stabilizing plate 508 will move in the direction away from the side wall of the sampling tube 1. The stabilizing plate 508 penetrates deep into the soil and wraps most of the soil, thereby reducing the possibility of the soil falling out of the sampling tube 1 when the sampling tube 1 is removed from the soil.

[0045] After the sampling tube 1 is finished, the moving ring 505 is loosened, and the moving rod 3 is moved downward. In the process of the moving rod 3 driving the squeezing plate 6 to move downward, when the rubber sleeve 4 and the stabilizing plate 508 are against each other, Figure 8Taking the direction as an example, the rubber sleeve 4 and the baffle 709 abut against each other and drive the baffle 709 to move left, the baffle 709 drives the square rod 708 to move left, the square rod 708 drives the rack 706 to move left, and the rack 706 compresses the spring 5 707 while driving the meshing gear 705 to rotate counterclockwise, and the gear 705 drives the rotating shaft 704 to rotate counterclockwise. When the baffle 709 and the stabilizing plate 508 abut against each other, the soil inside the sampling tube 1 is basically moved out of the sampling tube 1, and the squeezing plate 6 There is basically no residual soil on the lower side. At this time, the rotating shaft 704 drives the connecting rod five 715 to rotate, and the connecting rod drives the rotating disk 701 to rotate. Under the limiting effect of the spring three 714, the rotating disk 701 is always located at the lower side of the rubber sleeve 4 and abuts against the rubber sleeve 4. Therefore, the rotating rotating disk 701 will clean up the soil remaining on the lower side of the rubber sleeve 4. During the rotation of the rotating shaft 704, the rotating shaft 704 drives the rotating rod 710 to rotate. When the rotating rod 710 and the vibration plate 713 abut against each other, the rotating disk 701 can be cleaned up. Fig. 9 Based on the direction of the vibration plate 713, the vibration plate 713 will move rightward. While the vibration plate 713 compresses the spring 2 712, it drives the vibration rod 711 to move. The vibration rod 711 and the rubber sleeve 4 are pressed against each other to squeeze the rubber sleeve 4. When the rotating rod 710 and the vibration plate 713 are disconnected, the vibration plate 713 returns to its original position under the action of the spring 2 712. Therefore, when the rotating shaft 704 drives the rotating rod 710 to rotate, the vibration plate 713 drives the vibration rod 711 to move back and forth. The vibration rod 711 squeezes the rubber sleeve 4 for many times, causing the rubber sleeve 4 to vibrate to a certain extent, thereby improving the cleaning effect of the residual soil on the lower side of the rubber sleeve 4.

[0046] When the rubber sleeve 4 and the stabilizing plate 508 are against each other, not only the baffle 709 is driven to move to the left, but also the stabilizing plate 508 is driven to move toward the inner wall of the sampling tube 1, and the top plate 502 stretches the spring 1 504 (the movement of the stabilizing plate 508 at this time is opposite to that during the stabilizing operation, that is, Figure 5 In the figure, the stabilizing plate 508 changes from right to left), and at the same time, the connecting rod four 510 drives the trapezoidal plate one 83 to move rightward through the limit plate 82, and the trapezoidal plate one 83 drives the trapezoidal plate two 87 to move downward. While the trapezoidal plate two 87 compresses the spring four 86, it drives the cleaning ring 81 to move downward through the connecting rod six 85 to clean the soil remaining on the lower side wall of the sampling tube 1.

Claims

1. A sampling device for detecting soil quality after returning straw to the field, comprising a sampling tube (1), characterized in that: The sampling tube (1) is symmetrically and fixedly connected to the outside of the sampling tube (1) with two groups of grips (2); a moving rod (3) is slidably sleeved in the sampling tube (1) in an upper and lower manner; a squeezing plate (6) is fixedly connected to the lower side of the moving rod (3); a rubber sleeve (4) is fixedly sleeved on the outer side of the squeezing plate (6); a stabilizing component (5) is installed in the sampling tube (1) to prevent soil from slipping out of the sampling tube (1); the stabilizing component (5) includes a plurality of groups of stabilizing grooves (506) uniformly circumferentially opened on the side wall of the sampling tube (1); a connecting rod 1 (503) is slidably sleeved on the upper side of the plurality of groups of stabilizing grooves (506); the connecting rod 1 (503) penetrates the upper side wall of the stabilizing groove (506); the connecting rod 1 (503) is fixedly connected to a connecting rod 2 (503); 07), the outer side of the connecting rod 2 (507) is rotatably sleeved with a stabilizing plate (508), the inner side of the stabilizing plate (508) is rotatably sleeved with a connecting rod 3 (509), the side wall of the connecting rod 3 (509) is fixedly connected with a connecting rod 4 (510), the outer side of the connecting rod 4 (510) is slidably sleeved with a fixing cylinder (511), the fixing cylinder (511) and the stabilizing groove (506) are fixedly connected, the connecting rod 1 (503) is fixedly connected with a top plate (502), a spring 1 (504) is fixedly connected between the top plate (502) and the sampling cylinder (1), the outer side of the moving rod (3) is slidably sleeved with a moving ring (505), and a plurality of groups of The connecting rod is a connecting rod, the outer side of the moving rod (3) is also threadedly sleeved with a threaded ring (501), the lower side of the extrusion plate (6) is equipped with a vibration component for cleaning the soil outside the rubber sleeve (4), the vibration component includes a plurality of cavities (703) opened in the extrusion plate (6), a rotating shaft (704) is rotatably sleeved in the plurality of cavities (703), a gear (705) is fixedly sleeved on the outer side of the rotating shaft (704), a plurality of racks (706) are slidably connected in the plurality of cavities (703), a spring (707) is fixedly connected between the rack (706) and the cavity (703), a square rod (708) is fixedly connected to the rack (706), and a baffle (709) is fixedly connected to the square rod (708). The lower side of the extrusion plate (6) is evenly and fixedly connected to a plurality of fixed boxes (702) in the circumferential direction; the lower side of the rotating shaft (704) is slidably sleeved with a fifth connecting rod (715) in an up-and-down manner; a third spring (714) is fixedly connected between the fifth connecting rod (715) and the rotating shaft (704); the lower side of the fifth connecting rod (715) is fixedly connected to a rotating disk (701); the rotating shaft (704) is located in the fixed box (702) and is evenly and fixedly connected to a plurality of rotating rods (710) in the circumferential direction; a vibration plate (713) is slidably connected to the fixed box (702); a second spring (712) is fixedly connected between the vibration plate (713) and the side wall of the fixed box (702); and the vibration plate (713) is fixedly connected to a vibration rod (711).A cleaning assembly for cleaning the inner wall of the sampling barrel (1) is installed in the sampling barrel (1), and the cleaning assembly includes a cleaning ring (81) slidably sleeved on the inner side of the sampling barrel (1), the outer side of the connecting rod four (510) is fixedly sleeved with a limit plate (82), the lower side of the limit plate (82) is fixedly connected to a trapezoidal plate one (83), the lower side of the multiple groups of the stabilizing grooves (506) are all provided with connecting grooves (84), the connecting grooves (84) are slidably sleeved with trapezoidal plates two (87) up and down, the trapezoidal plates two (87) and the connecting grooves (84) are fixedly connected with springs four (86), the lower side of the trapezoidal plates two (87) is fixedly connected with the connecting grooves (84), the connecting rod six (85) is fixedly connected with the cleaning ring (81), and the connecting rod six (85) and the cleaning ring (81) are fixedly connected.

2. The sampling device for detecting soil quality after returning straw to the field according to claim 1 is characterized by: The contact surfaces of the trapezoidal plate 1 (83) and the trapezoidal plate 2 (87) are both smooth.

3. The sampling device for detecting soil quality after returning straw to field according to claim 1 is characterized in that: An annular groove is formed in the sampling tube (1), a fixing ring (88) is slidably sleeved in the annular groove, and the fixing ring (88) is fixedly connected to the cleaning ring (81).

4. The sampling device for detecting soil quality after returning straw to the field according to claim 3 is characterized by: The cross section of the fixing ring (88) is trapezoidal.

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