Soil sampling device for crop planting

Abstract

The utility model relates to a soil sampling device for crop planting, which comprises a sampling barrel (11) mounted on a bracket (10), the sampling barrel (11) comprises two half barrel bodies (21) which are oppositely arranged, and the outer sides of the tops of the half barrel bodies (21) are hinged with the bracket (10); the movable block (22) is movably connected with the inner side of the top of the half barrel (21); the moving block (22) moves upwards to drive the two half barrel bodies (21) to rotate around the outer sides of the tops of the half barrel bodies until the half barrel bodies are closed, and the sampling barrel (11) is inserted into soil for sampling; the moving block (22) moves downwards to drive the two half cylinder bodies (21) to reversely rotate around the outer sides of the tops of the half cylinder bodies until the half cylinder bodies are gradually opened, and the sampling cylinder (11) is separated from a soil sample, so that the soil sample is prevented from being extruded and even damaged, and subsequent detection is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sampling, in particular to a soil sampling device for crop planting. Background Art

[0002] When planting crops, it is necessary to first sample and test the soil in the area, and determine the soil's pH and degree of pollution based on the test data before judging whether it is suitable for planting. Soil sampling refers to the method of collecting soil samples, including the layout of sampling and sampling techniques. When sampling soil, the loose soil on the surface of the soil should be removed first, and then a special soil sampling device should be used to sample from the typical central part layer by layer from top to bottom. After sampling, the commonly used soil sampling devices often cause soil samples to adhere to the inner wall of the sampling tube, making it inconvenient to remove and resulting in low sampling efficiency.

[0003] The Chinese utility model patent with the authorization announcement number CN220304872U discloses a wear-resistant soil sampling device, which pushes out the soil sample by moving the push plate in the sampling tube after sampling is completed, thereby reducing sample residue. However, the defect is that the soil sample is squeezed or even damaged when the push plate is moved to take out the soil sample, which affects subsequent detection. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing soil sampling device takes out soil samples by moving the push plate, which causes the soil samples to be squeezed or even damaged, thus affecting subsequent detection.

[0005] In order to solve the above problems, the utility model provides a soil sampling device for crop planting, comprising a sampling cylinder installed on a bracket, the sampling cylinder comprising two semi-cylinders arranged oppositely, and the outer sides of the tops of the semi-cylinders are hinged to the bracket;

[0006] The utility model also comprises a moving block which is movably connected with the inner side of the top of the semi-cylinder. The moving block moves up and down to make the two semi-cylinders rotate around the outer side of the top thereof so as to open or close the two semi-cylinders.

[0007] The soil sampling device for crop planting provided by the utility model also has the following technical features:

[0008] The top of the semi-cylinder is fixed to the lower end of the vertical rod, the upper end of the vertical rod is vertically fixed to one end of the cross rod and is hinged to the bracket, and the other end of the cross rod is movably connected to the moving block.

[0009] Two slots are arranged opposite to each other on the outer circumferential surface of the moving block. A latch is fixed in the slot. The latch slides along the long hole. The long hole is arranged at the other end of the cross bar.

[0010] The upper end of the slot passes through the moving block.

[0011] A motor is fixed on the bracket, an output shaft of the motor is fixed to a lead screw, and the lead screw is threadedly connected to the moving block.

[0012] The sampling tube is provided with upper and lower openings;

[0013] The lead screw is fixed to the turntable, and the center of gravity of the turntable is eccentrically arranged with respect to its center of shape.

[0014] Two handles are relatively fixed on the bracket.

[0015] A plurality of teeth are evenly fixed on the bottom of the sampling tube in a circumferential direction.

[0016] The utility model has the following beneficial effects: by moving the moving block upward, the two half cylinders are driven to rotate around the outer sides of their tops until they are closed, and the sampling tube is inserted into the soil for sampling; by moving the moving block downward, the two half cylinders are driven to rotate around the outer sides of their tops in opposite directions until they are gradually opened, and the sampling tube is separated from the soil sample, thereby preventing the soil sample from being squeezed or even damaged, which is convenient for subsequent detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial cross-sectional view of the utility model. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0019] like Figure 1 As shown, the soil sampling device for crop planting of the utility model comprises a sampling cylinder 11 mounted on a bracket 10, the sampling cylinder 11 comprises two semi-cylinders 21 arranged opposite to each other, and the outer sides of the tops of the semi-cylinders 21 are hinged to the bracket 10;

[0020] The movable block 22 is also included, which is movably connected to the inner side of the top of the semi-cylinder 21. The movable block 22 moves up and down to make the two semi-cylinders 21 rotate around the outer side of the top, so that the two semi-cylinders 21 are opened or closed.

[0021] The utility model moves the moving block 22 upward, drives the two half cylinders 21 to rotate around the outer side of the top until they are closed, and inserts the sampling tube 11 into the soil for sampling; moves the moving block 22 downward, drives the two half cylinders 21 to rotate around the outer side of the top until they are gradually opened, and separates the sampling tube 11 from the soil sample, thereby preventing the soil sample from being squeezed or even damaged, which is convenient for subsequent detection.

[0022] Preferably, the top of the semi-cylinder 21 is fixed to the lower end of the vertical rod 23 , the upper end of the vertical rod 23 is vertically fixed to one end of the cross rod 24 and hinged to the bracket 10 , and the other end of the cross rod 24 is movably connected to the moving block 22 .

[0023] Preferably, two slots 25 are oppositely formed on the outer circumferential surface of the moving block 22 , and a latch 26 is fixed in the slot 25 . The latch 26 slides along a long hole 27 , and the long hole 27 is formed at the other end of the cross bar 24 .

[0024] The movable block 22 of the utility model moves up and down, and the cooperation between the bayonet 26 and the long hole 27 drives the L-shaped rod formed by the horizontal rod 24 and the vertical rod 23 to swing, so that the two semi-cylinders 21 rotate around the upper end of the vertical rod 23 and one end of the horizontal rod 24, thereby opening or closing the two semi-cylinders 21.

[0025] Preferably, the upper end of the slot 25 passes through the moving block 22 .

[0026] Preferably, a motor 28 is fixed on the bracket 10 , the output shaft of the motor 28 is fixed to a lead screw 29 , and the lead screw 29 is threadedly connected to the moving block 22 .

[0027] Preferably, the sampling tube 11 is provided with upper and lower openings;

[0028] The lead screw 29 is fixed to the turntable 30, and the center of gravity of the turntable 30 is eccentric to the center of shape thereof.

[0029] The utility model drives the lead screw 29 to rotate through the output shaft of the motor 28, drives the moving block 22 to move downward, drives the two half cylinders 21 to rotate until they are gradually opened, so that the sampling tube 11 is separated from the soil sample. During this process, the lead screw 29 drives the turntable 30 to rotate. Since the mass of the turntable 30 is unevenly set, the entire device is shaken or vibrated, which makes it easier to separate the sampling tube 11 from the soil sample.

[0030] Among them, the center of gravity of the turntable 30 is eccentric to its centroid, which can be understood as the turntable 30 is a circular disk with uneven mass distribution, and its function is similar to that of an eccentric wheel. Those skilled in the art can design the turntable 30 with the above-mentioned eccentric mass setting according to actual needs.

[0031] Preferably, two handles 12 are relatively fixed on the bracket 10 .

[0032] Preferably, a plurality of teeth 13 are evenly fixed on the bottom of the sampling tube 11 in the circumferential direction.

[0033] The working principle of the utility model is as follows:

[0034] When soil sampling is required, the output shaft of the control motor 28 is rotated, driving the lead screw 29 to rotate, driving the moving block 22 to move upward, so that the two half cylinders 21 are relatively rotated to close, that is, merged into the use state, and then the handle 12 is held to insert the sampling tube 11 into the soil for sampling;

[0035] After sampling, the sampling tube 12 is taken out of the soil by holding the handle 12, and the output shaft of the motor 28 is controlled to rotate in the opposite direction, driving the moving block 22 to move downward, driving the two half cylinders 21 to rotate in opposite directions until they are gradually opened, so that the sampling tube 11 is separated from the soil sample, thereby preventing the soil sample from being squeezed or even damaged, and facilitating subsequent detection; in this process, the screw 29 drives the turntable 30 to rotate. Due to the uneven mass setting of the turntable 30, the entire device is shaken or vibrated, which makes it easier to separate the sampling tube 11 from the soil sample.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A soil sampling device for crop planting, comprising a sampling tube (11) mounted on a bracket (10), It is characterized in that The sampling cylinder (11) comprises two semi-cylinder bodies (21) arranged opposite to each other, and the outer sides of the tops of the semi-cylinder bodies (21) are hingedly connected to the bracket (10); It also includes a moving block (22) which is movably connected to the inner side of the top of the semi-cylinder (21). The moving block (22) moves up and down to cause the two semi-cylinders (21) to rotate around the outer side of the top, so that the two semi-cylinders (21) are opened or closed.

2. The soil sampling device for crop planting according to claim 1, It is characterized in that The top of the semi-cylinder (21) is fixed to the lower end of the vertical rod (23), the upper end of the vertical rod (23) is vertically fixed to one end of the cross rod (24) and is hinged to the bracket (10), and the other end of the cross rod (24) is movably connected to the moving block (22).

3. The soil sampling device for crop planting according to claim 2, It is characterized in that Two slots (25) are provided on the outer circumferential surface of the moving block (22) opposite to each other. A latch pin (26) is fixed in the slot (25). The latch pin (26) slides along the elongated hole (27). The elongated hole (27) is provided at the other end of the cross bar (24).

4. The soil sampling device for crop planting according to claim 3, It is characterized in that The upper end of the slot (25) is arranged to penetrate the moving block (22).

5. The soil sampling device for crop planting according to claim 1, It is characterized in that A motor (28) is fixed on the bracket (10), an output shaft of the motor (28) is fixed to a lead screw (29), and the lead screw (29) is threadedly connected to the moving block (22).

6. The soil sampling device for crop planting according to claim 5, It is characterized in that The sampling tube (11) is provided with upper and lower openings; The lead screw (29) is fixed to the rotating disk (30), and the center of gravity of the rotating disk (30) is eccentrically arranged with respect to its center of shape.

7. The soil sampling device for crop planting according to claim 1, It is characterized in that Two handles (12) are relatively fixed on the bracket (10).

8. The soil sampling device for crop planting according to claim 1, It is characterized in that A plurality of teeth (13) are evenly fixed around the bottom of the sampling tube (11).

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