Ploughing soil layer thickness surveying equipment

Abstract

The utility model discloses cultivated land soil layer thickness surveying equipment which comprises a movable base, a workbench is arranged above the movable base, a plurality of telescopic cylinders are arranged on the peripheral side of the top of the movable base, and the two ends of each telescopic cylinder are connected with the top of the movable base and the bottom of the workbench respectively. A round hole is formed in the middle of the movable base; the driving shaft is located between the movable base and the workbench, and the driving shaft is coaxially and rotatably connected with the circular hole; the sampling barrel is detachably mounted at the lower end of the driving shaft, and an annular tunneling cutter is detachably mounted at the lower end of the sampling barrel; the cleaning assembly is mounted at the top of the movable base, is coaxially arranged on the peripheral side of the circular hole, and is used for cleaning the periphery of the sampling barrel and automatically cutting off the soil sample through the sampling barrel to completely take out the soil sample, so that the accuracy of a detection result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural survey equipment, in particular to a device for surveying the thickness of cultivated land soil layers. Background Art

[0002] In agricultural production, understanding the thickness of the soil layer under cultivation is crucial for assessing soil fertility and formulating planting strategies.

[0003] When existing surveying equipment conducts drilling sampling measurements, a large amount of soil remains on the outside of the sampling tube when it is taken out, which needs to be manually cleaned before measurement. In addition, when the sampling tube drives the soil sample upward, it is affected by soil factors (soil density, humidity, particle size, etc.), which may cause the soil sample to stick or fall off and cannot be completely removed, making it impossible to accurately measure the soil layer thickness of the cultivated land, resulting in low survey efficiency.

[0004] Therefore, it is necessary to provide a soil thickness survey device for cultivated land to solve the problems mentioned in the above background technology. Utility Model Content

[0005] To achieve the above purpose, the utility model provides the following technical solution: a device for measuring the thickness of cultivated land soil layers, comprising:

[0006] A mobile base, a workbench is arranged above the mobile base, a plurality of telescopic cylinders are arranged around the top of the mobile base, two ends of the telescopic cylinders are respectively connected to the top of the mobile base and the bottom of the workbench, and a circular hole is opened in the middle of the mobile base;

[0007] A driving shaft, the driving shaft is located between the movable base and the workbench and is coaxially rotatably connected to the circular hole;

[0008] A sampling barrel, the sampling barrel is detachably mounted on the lower end of the driving shaft, and an annular excavation cutter is detachably mounted on the lower end of the sampling barrel; and

[0009] A cleaning component is installed on the top of the movable base and is coaxially arranged on the peripheral side of the circular hole for cleaning the periphery of the sampling tube.

[0010] As a preferred technical solution of the utility model, the sampling tube comprises:

[0011] An outer cylinder, the outer cylinder is coaxially mounted on the lower end of the driving shaft, a mounting cavity is provided on the inner side of the lower part of the outer cylinder, and a ring groove 1 is provided on the bottom of the mounting cavity;

[0012] An inner cylinder, the inner cylinder is coaxially rotatably mounted in the mounting cavity, the inner cylinder has the same inner diameter as the outer cylinder, and the inner cylinder is located at one part of the annular groove and has a plurality of corresponding accommodating grooves along the circumference of the inner cylinder;

[0013] A cutting knife, which is an arc-shaped knife structure and is rotatably disposed on one side of the accommodating groove, and the inner arc surface of the cutting knife coincides with the inner diameter of the inner cylinder; and

[0014] A connecting rod, one end of which is vertically hinged at the middle of the sample cutting knife, and the other end of which is vertically hinged in the first annular groove.

[0015] As a preferred technical solution of the utility model, the outer tube and the inner tube are both made of transparent materials, the friction coefficient of the inner wall of the inner tube is greater than the friction coefficient of the outer tube, and scale lines are engraved on the outer wall of the outer tube.

[0016] As a preferred technical solution of the utility model, the cleaning component includes:

[0017] An annular cylinder is fixedly mounted on the movable base, and an annular groove 2 and an annular groove 3 are respectively formed on the inner upper and lower parts of the annular cylinder, and the annular groove 2 is evenly formed with a plurality of mounting holes along the radial direction of the bottom thereof;

[0018] A plurality of springs, one end of each spring being fixed to the bottom of the mounting hole, and the other end of each spring being connected to the middle of the outer arc surface of the arc plate seat, and an arc-shaped cleaning sponge being adhered to the inner arc surface of each arc plate seat; and

[0019] The cleaning brush belt is made of a flexible material and is adhered with a circle along the bottom of the annular groove.

[0020] As a preferred technical solution of the utility model, a guide angle is provided on one side of the lower part of the cross section of the cleaning brush belt close to the axis.

[0021] As a preferred technical solution of the utility model, a plurality of traveling wheels are arranged on the side of the movable base obliquely above the ground, and a pull handle is arranged above the traveling wheels and on the same side as the workbench.

[0022] As a preferred technical solution of the utility model, both sides of the accommodating groove are provided with limited surfaces, and sensing patches are provided at the two limited surfaces of any accommodating groove.

[0023] Compared with the prior art, the utility model provides a device for surveying the thickness of cultivated land soil layers, which has the following beneficial effects:

[0024] In the utility model, by arranging relatively rotatable inner cylinder, sample cutting knife, connecting rod and other structures in the sampling tube, when the sampling is completed, the motor is reversed, the inner cylinder and the outer cylinder rotate relatively, the sample cutting knife rotates out to cut off the columnar soil sample in the sampling cylinder, and at the same time supports the bottom of the upwardly moved soil sample, so as to ensure the integrity of the soil sample taken out and the accuracy of the detection result, and a cleaning component is arranged to clean the outer side of the rotating upwardly moved sampling cylinder, so that the operator can quickly observe and record the thickness of the cultivated land soil layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a cultivated land soil thickness survey device;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of a sampling tube of a cultivated land soil thickness survey device;

[0027] Figure 3 It is a kind of soil thickness survey equipment for cultivated land Figure 2 Schematic diagram of the cross-sectional structure when the middle AA rotates forward;

[0028] Figure 4 It is a kind of soil thickness survey equipment for cultivated land Figure 2 Schematic diagram of the cross-sectional structure when AA is reversed;

[0029] Figure 5 This is a schematic diagram of the structure of a cleaning component of a arable land soil thickness survey device;

[0030] In the figure: 1. mobile base; 11. traveling wheel; 2. workbench; 3. telescopic cylinder; 4. driving shaft; 5. sampling tube; 51. outer tube; 52. inner tube; 53. annular groove 1; 54. accommodating groove; 55. cutting knife; 56. connecting rod; 6. excavation knife; 7. cleaning assembly; 71. annular tube; 72. annular groove 2; 73. mounting hole; 74. spring; 75. arc plate seat; 76. cleaning sponge; 77. cleaning brush belt. DETAILED DESCRIPTION

[0031] See also Figure 1-5 The utility model provides a device for measuring the thickness of cultivated land soil layers, comprising:

[0032] A mobile base 1, a workbench 2 is arranged above the mobile base 1, a plurality of telescopic cylinders 3 are arranged around the top of the mobile base 1, two ends of the telescopic cylinders 3 are respectively connected to the top of the mobile base 1 and the bottom of the workbench 2, and a circular hole is opened in the middle of the mobile base 1;

[0033] A driving shaft 4, wherein the driving shaft 4 is located between the movable base 1 and the workbench 2 and is coaxially rotatably connected to the circular hole;

[0034] A sampling barrel 5, wherein the sampling barrel 5 is detachably mounted on the lower end of the driving shaft 4, and an annular excavation cutter 6 is detachably mounted on the lower end of the sampling barrel 5; and

[0035] A cleaning assembly 7 is installed on the top of the mobile base 1 and is coaxially arranged on the peripheral side of the circular hole for cleaning the periphery of the sampling tube 5 .

[0036] During implementation, the operator first moves the device to the target position and adjusts the device to be perpendicular to the ground, then starts the external motor to drive the drive shaft 4, the sampling tube 5 and the tunneling knife 6 to rotate, and then controls each telescopic cylinder 3 to shrink synchronously and uniformly to drive the tunneling knife 6 to move downward for drilling sampling. When the drilling reaches the set depth, the depth is greater than the actual sampling length. The motor reverses and the sampling tube 5 automatically cuts off the columnar soil sample inside the soil layer and supports the lower end of the soil sample to ensure that the soil sample at the bottom of the soil layer is smoothly taken out. Then the telescopic cylinder 3 is controlled to extend to bring out the sampling tube 5. During this process, the motor reverses and the cleaning component 7 cleans the soil on the surface of the sampling tube 5.

[0037] In this embodiment, the sampling tube 5 includes:

[0038] An outer cylinder 51, the outer cylinder 51 is coaxially mounted on the lower end of the driving shaft 4, a mounting cavity is formed on the inner side of the lower portion of the outer cylinder 51, and a ring groove 53 is formed on the bottom of the mounting cavity;

[0039] An inner cylinder 52, the inner cylinder 52 is coaxially rotatably mounted in the mounting cavity, the inner cylinder 52 has the same inner diameter as the outer cylinder 51, the inner cylinder 52 is located at the annular groove 1 53, and a plurality of accommodating grooves 54 are correspondingly opened along the circumference of the inner cylinder 52;

[0040] A cutting knife 55, which is an arc-shaped knife structure and is rotatably disposed on one side of the accommodating groove 54, and an inner arc surface of the cutting knife 55 coincides with the inner diameter of the inner cylinder 52; and

[0041] A connecting rod 56, one end of which is vertically hinged at the middle of the sample cutting knife 55, and the other end of which is vertically hinged in the annular groove 1 53.

[0042] In this embodiment, the outer tube 51 and the inner tube 52 are both made of transparent materials, the friction coefficient of the inner wall of the inner tube 52 is greater than that of the outer tube 51 , and scale lines are engraved on the outer wall of the outer tube 51 .

[0043] When the sampling tube 5 moves down to take a sample, the motor rotates forward, the outer tube 51 rotates under the action of the driving shaft 4, and then drives the cutting knife 55 to rotate through the connecting rod 56 until the cutting knife 55 abuts against the accommodating groove 54. At this time, the inner tube 52 rotates synchronously with the outer tube 51. When the drilling reaches the specified depth and the soil sample in the sampling tube 5 needs to be taken out, the sampling tube 5 is kept at this depth to control the motor to reverse. Due to the different friction coefficients between the inner walls of the inner tube 52 and the outer tube 51, the outer tube 51 and the inner tube 52 rotate relative to each other. Under the action of the connecting rod 56, each cutting knife 55 is pushed out and rotates and cuts the columnar soil sample. After that, the motor keeps the rotation direction and rotates slowly, so that the cutting knife 55 always remains in an extended state to support the bottom of the columnar soil sample to prevent it from falling when moving up, affecting the accuracy of the subsequent judgment of the thickness of the cultivated land soil layer. Finally, the sampling tube 5 is taken out under the drive of the telescopic cylinder 3.

[0044] In this embodiment, the cleaning component 7 includes:

[0045] The annular tube 71 is fixed on the mobile base 1. The annular tube 71 has an annular groove 2 72 and an annular groove 3 respectively formed on the upper and lower parts of the inner side. The annular groove 72 has a plurality of mounting holes 73 uniformly formed along the radial direction of the bottom thereof.

[0046] A plurality of springs 74, one end of each spring 74 being fixed to the bottom of each mounting hole 73, and the other end of each spring 74 being connected to the middle of the outer arc surface of each arc plate seat 75, and an arc-shaped cleaning sponge 76 being adhered to the inner arc surface of each arc plate seat 75; and

[0047] The cleaning brush belt 77 is made of a flexible material and is adhered to a circle along the bottom of the annular groove.

[0048] Specifically, the cleaning sponge 76 is elastically supported by the spring 74 so that it elastically rests on the outer peripheral side of the sampling tube 5. When the sampling tube 5 rotates and moves upward, the cleaning brush belt 77 first performs preliminary cleaning of the soil on the sampling tube 5, and then the cleaning sponge 76 performs fine cleaning, so that the outer scale lines of the sampling tube 5 remain clearly visible, which is convenient for the operator to observe and record the thickness of the cultivated soil layer.

[0049] In this embodiment, a guide angle is provided on one side of the lower cross section of the cleaning brush belt 77 close to the axis. The guide angle is set so that the distance between the bristle part and the surface of the sampling tube 5 gradually decreases from bottom to top, and the dirt on the surface of the sampling tube 5 is cleaned layer by layer, thereby increasing the service life of the cleaning brush belt 77.

[0050] In this embodiment, the side of the mobile base 1 is tilted higher than the ground and has multiple traveling wheels 11, and a pull handle is provided above the traveling wheels 11 and on the same side of the workbench 2. By pulling the pull handle, the device tilts the traveling wheels 11 to contact the ground and move.

[0051] In this embodiment, both sides of the receiving groove 54 are provided with limited surfaces, and sensing patches are provided at the two limited surfaces of any receiving groove 54 to judge the position of the cutting knife 55 .

[0052] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for measuring the thickness of cultivated land soil layers, characterized in that: include: A mobile base (1), a workbench (2) is arranged above the mobile base (1), a plurality of telescopic cylinders (3) are arranged around the top of the mobile base (1), two ends of the telescopic cylinders (3) are respectively connected to the top of the mobile base (1) and the bottom of the workbench (2), and a circular hole is opened in the middle of the mobile base (1); A driving shaft (4), the driving shaft (4) being located between the movable base (1) and the workbench (2) and being coaxially rotatably connected to the circular hole; A sampling barrel (5), the sampling barrel (5) being detachably mounted on the lower end of the driving shaft (4), and an annular excavation blade (6) being detachably mounted on the lower end of the sampling barrel (5); and A cleaning component (7) is installed on the top of the movable base (1) and is coaxially arranged on the peripheral side of the circular hole, and is used to clean the outer periphery of the sampling tube (5).

2. The device for measuring the thickness of cultivated land soil according to claim 1, characterized in that: The sampling tube (5) comprises: An outer cylinder (51), the outer cylinder (51) being coaxially mounted on the lower end of the drive shaft (4), a mounting cavity being provided on the inner side of the lower portion of the outer cylinder (51), and a ring groove (53) being provided on the bottom of the mounting cavity; An inner cylinder (52), the inner cylinder (52) being coaxially rotatably mounted in the mounting cavity, the inner cylinder (52) having the same inner diameter as the outer cylinder (51), the inner cylinder (52) being located at the annular groove 1 (53) and having a plurality of corresponding accommodating grooves (54) along the circumference of the inner cylinder (52); A cutting knife (55), the cutting knife (55) is an arc-shaped knife structure and is rotatably arranged on one side of the accommodating groove (54), and the inner arc surface of the cutting knife (55) coincides with the inner diameter of the inner cylinder (52); and A connecting rod (56), one end of which is vertically hinged on the middle of the sample cutting knife (55), and the other end of which is vertically hinged in the annular groove (53).

3. The device for measuring the thickness of cultivated land soil layer according to claim 2, characterized in that: The outer cylinder (51) and the inner cylinder (52) are both made of transparent materials, the friction coefficient of the inner wall of the inner cylinder (52) is greater than the friction coefficient of the outer cylinder (51), and scale lines are engraved on the outer wall surface of the outer cylinder (51).

4. The device for measuring the thickness of cultivated land soil layer according to claim 1, characterized in that: The cleaning component (7) comprises: An annular cylinder (71) is fixedly mounted on the movable base (1), and an annular groove 2 (72) and an annular groove 3 are respectively formed on the inner upper and lower parts of the annular cylinder (71), and a plurality of mounting holes (73) are evenly formed on the bottom of the annular groove 2 (72) in a radial direction; a plurality of springs (74), one end of each spring (74) being fixed to the bottom of each mounting hole (73), and the other end of each spring (74) being connected to the middle of the outer arc surface of the arc plate seat (75), and an arc-shaped cleaning sponge (76) being adhered to the inner arc surface of each arc plate seat (75); and A cleaning brush belt (77), wherein the cleaning brush belt (77) is made of a flexible material and is adhered to a circle along the bottom of the annular groove.

5. The device for measuring the thickness of cultivated land soil layer according to claim 4, characterized in that: A guide angle is provided on one side of the lower section of the cleaning brush belt (77) close to the axis.

6. The device for measuring the thickness of cultivated land soil layer according to claim 1, characterized in that: The side of the mobile base (1) is inclined above the ground and is provided with a plurality of traveling wheels (11), and a pull handle is provided above the traveling wheels (11) and on the same side as the workbench (2).

7. The device for measuring the thickness of cultivated land soil layer according to claim 2, characterized in that: Limiting surfaces are arranged on both sides of the accommodating groove (54), and sensing patches are arranged at the two limiting surfaces of any accommodating groove (54).

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