Soil detection sampling device

Abstract

The invention discloses a soil detecting and sampling device which comprises a drilling barrel, an inner barrel is arranged in the drilling barrel, the drilling barrel and the inner barrel are both rotationally installed on a sampling support, a discharging channel is arranged between the inner barrel and the drilling barrel, a spiral blade is arranged on the outer side of the inner barrel, the top of the inner barrel protrudes out of the top of the drilling barrel, and the top of the inner barrel is provided with a spiral blade. The drilling barrel is driven by a first driving motor to rotate, the inner barrel is driven by a second driving motor to rotate, a discharging box is arranged on the sampling support, a discharging opening communicated with a discharging channel is formed in the drilling barrel and located in the discharging box, an opening is formed in the bottom of the inner barrel, and a closing mechanism is arranged at the opening. Before the sampling depth is reached, the closing mechanism is closed, and the discharging channel can discharge soil at the top; after the sampling depth is reached, the closing mechanism is opened, so that the sampled soil can enter the sampling barrel, and the discharging channel can discharge the soil in contact with the drilling barrel, so that the resistance can be reduced, and material mixing is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection, in particular to the technical field of soil detection sampling devices. Background Art

[0002] Soil is an important component of the Earth's ecosystem and is closely related to the quality of agricultural products, human health, and the ecological environment. However, with the development of industrialization and urbanization and the extensive use of fertilizers and pesticides in agricultural production, soil pollution problems are becoming increasingly serious, such as excessive heavy metals and organic matter pollution. Accurately detecting various indicators in the soil is of great significance for assessing soil quality, ensuring the safety of agricultural products, preventing and controlling soil pollution, and promoting ecological and environmental protection.

[0003] Patent document CN220322772U discloses a soil sampling device for soil acidity detection. When sampling, this device cannot automatically remove excess soil on the top during the insertion process, which affects the sampling accuracy.

[0004] Patent document CN221764929U discloses a surface soil sampling device for soil testing. The device uses a lifting frame to drive a sampling bucket to lift and lower for sampling. After sampling, the sampling bucket needs to be taken out before sampling can be carried out. The sampling process is relatively cumbersome. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the prior art and to provide a soil detection and sampling device that can solve the above problems.

[0006] To achieve the above-mentioned purpose, the present invention proposes a soil detection sampling device, comprising a drill barrel, an inner barrel being provided inside the drill barrel, the drill barrel and the inner barrel being rotatably mounted on a sampling bracket, a discharge channel being provided between the inner barrel and the drill barrel, a spiral blade being provided on the outer side of the inner barrel, the top of the inner barrel protruding from the top of the drill barrel, the drill barrel being driven to rotate by a first drive motor, and the inner barrel being driven to rotate by a second drive motor, a discharge box being provided on the sampling bracket, a discharge port being provided on the drill barrel and communicating with the discharge channel, the discharge port being located in the discharge box, an opening being provided at the bottom of the inner barrel, and a closing mechanism being provided at the said location.

[0007] Preferably, a first gear ring is provided at the top of the drill tube, the first gear ring is engaged with a first drive gear, the first drive gear is connected to a first drive motor, a second gear ring is provided at the top of the inner tube, the second gear ring is engaged with a second drive gear, the second drive gear is connected to a second drive motor, and the first drive motor and the second drive motor are both installed on the sampling bracket.

[0008] Preferably, a discharge chamber is provided in the discharge box, the discharge chamber is rotatably mounted on the outside of the drill barrel, a discharge screw is rotatably mounted in the discharge box, the discharge screw is connected to a discharge motor, and a discharge outlet is provided at the bottom of the discharge box.

[0009] The locking mechanism comprises a locking ring, wherein the locking ring has a locking mechanism which locks the locking mechanism into position relative to the locking mechanism, the locking mechanism locking member being actuated by the locking mechanism and locking the locking mechanism in a locking manner.

[0010] Preferably, the closing claws form a conical head that is larger at the top and smaller at the bottom when closed.

[0011] Preferably, the sampling tube is provided with a plurality of sampling ports, and the sampling ports are provided with covers.

[0012] Preferably, the sampling cylinder and the inner cylinder are clearance-matched.

[0013] Preferably, a magnet is provided at the bottom of the mounting ring groove, and the bottom of the mounting ring is magnetically attracted to the magnet.

[0014] Preferably, the lifting guide rail is marked with scale.

[0015] Preferably, the sampling bracket is connected to a lifting mechanism, and the lifting mechanism is installed on the base.

[0016] Preferably, the lifting mechanism is a driving screw, which is rotatably mounted on the base. A fixing frame is provided on the base, and a lifting motor is installed on the fixing frame. The lifting motor is connected to the driving screw. A threaded hole is provided on the sampling bracket, and the driving screw is threadedly mounted on the threaded hole. A plurality of positioning columns are provided on the base, and a positioning hole matching the positioning column is provided on the sampling bracket, and the positioning hole is sleeved on the positioning column.

[0017] The beneficial effects of the present invention are as follows: the present invention provides a discharge channel between the inner tube and the drill tube, and a closing mechanism is provided at the bottom of the inner tube. Before reaching the sampling depth, the closing mechanism is closed, and the discharge channel can discharge the soil on the top; after reaching the sampling depth, the closing mechanism is opened, so that the sampled soil can enter the sampling tube, and the discharge channel can discharge the soil in contact with the drill tube, which can reduce resistance, avoid mixing, and prevent the rust of the drill tube from contaminating the soil; the sampling tube can be taken out of the inner tube, and when taken out, the closing mechanism automatically closes the bottom. It only needs to lift the sampling tube to a certain height through the lifting guide rail to sample through the sampling port without disassembly, which is very convenient.

[0018] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a schematic diagram of a base of the present invention; Figure 3 It is a schematic diagram of the discharge box of the present invention; Figure 4 This is a schematic diagram of the closing mechanism of the present invention in a closed state; Figure 5 It is a schematic diagram of the closing mechanism of the present invention in the open state.

[0020] In the figure: 1. Drill barrel; 2. Sampling bracket; 3. Inner barrel; 4. Discharge box; 5. Closing mechanism; 6. Limiting ring; 7. Sampling barrel; 8. Base; 11. Discharge port; 12. First gear ring; 13. First drive gear; 14. First drive motor; 31. Spiral blade; 32. Second gear ring; 33. Second drive gear; 34. Second drive motor; 35. Opening; 41. Discharge chamber; 42. Discharge screw; 43. Discharge outlet; 51. Mounting ring; 52. Mounting ring groove; 53. Closing claw; 54. Sliding rod; 55. Limiting groove; 61. Connecting part; 71. Snap ring; 72. Lifting bracket; 73. Lifting guide rail; 74. Sampling port; 81. Drive screw; 82. Fixing bracket; 83. Positioning column. DETAILED DESCRIPTION

[0021] See Figures 1 to 5A soil detection sampling device includes a drill barrel 1, an inner barrel 3 is provided inside the drill barrel 1, and the drill barrel 1 and the inner barrel 3 are both rotatably mounted on a sampling bracket 2, a discharge channel is provided between the inner barrel 3 and the drill barrel 1, a spiral blade 31 is provided on the outside of the inner barrel 3, the top of the inner barrel 3 protrudes from the top of the drill barrel 1, the drill barrel 1 is driven to rotate by a first drive motor 14, and the inner barrel 3 is driven to rotate by a second drive motor 34, a discharge box 4 is provided on the sampling bracket 2, a discharge port 11 connected to the discharge channel is opened on the drill barrel 1, and the discharge port 11 is located in the discharge box 4, an opening 35 is provided at the bottom of the inner barrel 3, and a closing mechanism 5 is provided at the opening 35.

[0022] The drill barrel is made of metal, and the inner barrel and sampling barrel are made of stable plastic. The soil in contact with the drill barrel will be discharged through the discharge channel, reducing the impact of drill barrel rust on the soil and ensuring the accuracy of the detection.

[0023] A first gear ring 12 is provided at the top of the drill tube 1, and the first gear ring 12 is engaged with a first drive gear 13, and the first drive gear 13 is connected to a first drive motor 14. A second gear ring 32 is provided at the top of the inner tube 3, and the second gear ring 32 is engaged with a second drive gear 33, and the second drive gear 33 is connected to a second drive motor 34. The first drive motor 14 and the second drive motor 34 are both installed on the sampling bracket 2.

[0024] The discharge box 4 is provided with a discharge cavity 41, and the discharge cavity 41 is rotatably mounted on the outside of the drill tube 1. A discharge screw 42 is rotatably mounted in the discharge box 4, and the discharge screw 42 is connected to a discharge motor. A discharge outlet 43 is provided at the bottom of the discharge box 4.

[0025] The closing mechanism 5 includes a mounting ring 51. A vertical mounting ring groove 52 is provided on the inner wall of the inner cylinder 3. The mounting ring 51 is slidably installed in the mounting ring groove 52. A plurality of closing claws 53 are installed on the inner side of the mounting ring 51 through a rotating shaft. A torsion spring is provided at the rotating shaft. In a natural state, the closing claws 53 are automatically closed to seal the bottom of the mounting ring 51. A limiting ring 6 is provided above the mounting ring 51. A connecting portion 61 is provided on the top of the limiting ring 6. A plurality of sliding rods 54 are provided on the top of the mounting ring 51. The connecting portion 61 is slidably installed on the sliding rods 54. 1. A limiting groove 55 is provided at one end of the mounting ring groove 52 close to the opening 35. When the limiting ring 6 slides to the bottom of the sliding rod 54, the closing claw 53 overcomes the elastic force and rotates to a vertical state. The outer side of the limiting ring 6 is limitedly abutted against the inner side of the closing claw 53, and the outer side of the closing claw 53 is limitedly abutted against the limiting groove 55. The top of the limiting ring 6 is connected to the sampling cylinder 7. The top of the sampling cylinder 7 protrudes from the top of the inner cylinder 3. The top of the sampling cylinder 7 is provided with a snap ring 71. The snap ring 71 is mounted on the lifting bracket 72. The lifting bracket 72 is slidably mounted on the lifting guide rail 73.

[0026] When the closing claws 53 are closed, they form a conical head that is larger at the top and smaller at the bottom.

[0027] When closed, the cone guides the soil into the outer discharge channel.

[0028] The bottom of the drill tube is provided with drill teeth.

[0029] The sampling tube 7 is provided with a plurality of sampling ports 74 , each of which is provided with a cover plate. The sampling tube 7 is fitted with the inner tube 3 in a clearance.

[0030] A magnet is provided at the bottom of the mounting ring groove 52 , and the bottom of the mounting ring 51 is magnetically attracted to the magnet.

[0031] The lifting guide rail 73 is marked with scale.

[0032] The sampling bracket 2 is connected to a lifting mechanism, and the lifting mechanism is installed on the base 8.

[0033] The lifting mechanism is a driving screw 81, which is rotatably mounted on the base 8. A fixing frame 82 is provided on the base 8, and a lifting motor is installed on the fixing frame 82. The lifting motor is connected to the driving screw 81. A threaded hole is provided on the sampling bracket 2, and the driving screw 81 is threadedly mounted on the threaded hole. A plurality of positioning columns 83 are provided on the base 8, and positioning holes matching the positioning columns 83 are provided on the sampling bracket 2. The positioning holes are sleeved on the positioning columns 83.

[0034] The bottom of the base is provided with a roller, and the base is provided with a making way groove for the drill tube to move.

[0035] Working process of the present invention: During the working process of the present invention, when sampling, the lifting mechanism drives the sampling bracket to move downward, and the drill barrel is inserted into the soil. The first motor drives the drill barrel to rotate, and the second motor drives the inner barrel to rotate. Before reaching the sampling depth, the mounting ring is located at the bottom of the mounting ring groove, and the limit ring is located above the closing claw and does not contact the closing claw. The closing claw is in a closed state, and the soil enters the sampling barrel without weaving and is discharged from the discharge channel. The discharged soil enters the discharge box and is discharged through the discharge screw. After reaching the sampling depth, the sampling barrel is driven downward by the lifting guide rail, and the limit ring at the bottom of the sampling barrel is inserted into the closing claw, so that the closing claw rotates to open, and the closing claw rotates to a vertical position. After the drill tube is in the correct position, it is limited by the limit groove, and the sampling bracket continues to move downward to start sampling. The soil will enter the sampling tube, and the soil between the drill tube and the inner tube will continue to be discharged from the discharge channel, reducing the resistance to advance, avoiding the soil in contact with the drill tube from being collected, and also avoiding the phenomenon of mixing, thereby improving the accuracy of sampling. After the sampling is completed, the sampling tube is driven to rise by the lifting guide rail, and the limit ring first moves upward relative to the mounting ring so that the limit ring does not contact the closing claw. The closing claw automatically closes after being free from force, and then the sampling tube continues to move upward and is taken out of the inner tube. After the sampling tube moves to the specified height, sampling can be done through the sampling port, which is very convenient.

[0036] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A soil detection sampling device, characterized in that: The present invention comprises a drill barrel (1), wherein an inner barrel (3) is provided inside the drill barrel (1), and the drill barrel (1) and the inner barrel (3) are both rotatably mounted on a sampling bracket (2), a discharge channel is provided between the inner barrel (3) and the drill barrel (1), a spiral blade (31) is provided on the outer side of the inner barrel (3), and the top of the inner barrel (3) protrudes from the top of the drill barrel (1), the drill barrel (1) is driven to rotate by a first drive motor (14), and the inner barrel (3) is driven to rotate by a second drive motor (34), a discharge box (4) is provided on the sampling bracket (2), a discharge port (11) connected to the discharge channel is opened on the drill barrel (1), and the discharge port (11) is located in the discharge box (4), an opening (35) is provided at the bottom of the inner barrel (3), and a closing mechanism (5) is provided at the opening (35).

2. The soil detection sampling device according to claim 1, characterized in that: A first gear ring (12) is provided at the top of the drill tube (1), the first gear ring (12) is engaged with a first drive gear (13), the first drive gear (13) is connected to a first drive motor (14), a second gear ring (32) is provided at the top of the inner tube (3), the second gear ring (32) is engaged with a second drive gear (33), the second drive gear (33) is connected to a second drive motor (34), and the first drive motor (14) and the second drive motor (34) are both mounted on the sampling bracket (2).

3. The soil detection sampling device according to claim 1, wherein: A discharge chamber (41) is provided in the discharge box (4), and the discharge chamber (41) is rotatably mounted on the outside of the drill tube (1). A discharge screw (42) is rotatably mounted in the discharge box (4), and the discharge screw (42) is connected to a discharge motor. A discharge outlet (43) is provided at the bottom of the discharge box (4).

4. The soil detection sampling device according to claim 1, wherein: The closing mechanism (5) includes a mounting ring (51), a vertical mounting ring groove (52) is provided on the inner wall of the inner cylinder (3), and the mounting ring (51) is slidably installed in the mounting ring groove (52). A plurality of closing claws (53) are installed on the inner side of the mounting ring (51) through a rotating shaft. A torsion spring is provided at the rotating shaft. In a natural state, the closing claws (53) are automatically closed to seal the bottom of the mounting ring (51). A limiting ring (6) is provided above the mounting ring (51), and a connecting portion (61) is provided on the top of the limiting ring (6). A plurality of sliding rods (54) are provided on the top of the sliding rods (54), and the connecting portion (61) is slidably installed on the sliding rods (54). ), a limiting groove (55) is provided at one end of the mounting ring groove (52) close to the opening (35), when the limiting ring (6) slides to the bottom of the slide rod (54), the closing claw (53) rotates to a vertical state, the outer side of the limiting ring (6) is in limiting contact with the inner side of the closing claw (53), and the outer side of the closing claw (53) is in limiting contact with the limiting groove (55), the top of the limiting ring (6) is connected to a sampling tube (7), the top of the sampling tube (7) protrudes from the top of the inner tube (3), the top of the sampling tube (7) is provided with a snap ring (71), the snap ring (71) is installed on the lifting bracket (72), and the lifting bracket (72) is slidably installed on the lifting guide rail (73).

5. The soil detection sampling device according to claim 4, characterized in that: When the closing claw (53) is closed, it forms a conical head that is larger at the top and smaller at the bottom.

6. The soil detection sampling device according to claim 4, characterized in that: The sampling cylinder (7) is provided with a plurality of sampling ports (74), and a cover plate is provided at the sampling ports (74). The sampling cylinder (7) and the inner cylinder (3) are clearance-matched.

7. The soil detection sampling device according to claim 4, characterized in that: A magnet is provided at the bottom of the mounting ring groove (52), and the bottom of the mounting ring (51) is magnetically attracted to the magnet.

8. The soil detection sampling device according to claim 4, characterized in that: The lifting guide rail (73) is marked with scale.

9. The soil detection sampling device according to claim 1, wherein: The sampling bracket (2) is connected to a lifting mechanism, and the lifting mechanism is installed on a base (8).

10. The soil detection and sampling device according to claim 9, wherein: The lifting mechanism is a driving screw (81), and the driving screw (81) is rotatably mounted on the base (8). The base (8) is provided with a fixing frame (82), and a lifting motor is installed on the fixing frame (82). The lifting motor is connected to the driving screw (81), and the sampling bracket (2) is provided with a threaded hole. The driving screw (81) is threadedly mounted on the threaded hole. The base (8) is provided with a plurality of positioning columns (83), and the sampling bracket (2) is provided with positioning holes matching the positioning columns (83). The positioning holes are sleeved on the positioning columns (83).

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