Crop root system digging and sampling device

Abstract

The utility model relates to sampling equipment, in particular to a crop root digging and sampling device which comprises a handle and a sampling cylinder connected with the bottom of the handle, the sampling cylinder is of a cylindrical structure with the top closed and the bottom open, a motor is arranged at the bottom of the handle, and the output end of the motor is in transmission connection with the top of a transmission rod. The bottom of the transmission rod is coaxially connected with the top end of the sampling barrel, the sampling barrel is further provided with a hinge assembly used for clamping the root system of a tobacco plant, the barrel wall of the sampling barrel is provided with a notch used for containing the hinge assembly, and the notch extends in the axial direction of the sampling barrel. The structure of a traditional soil sampler is improved, the tobacco plant root system can be effectively excavated, and meanwhile soil attached to the root system can be conveniently separated.

Description

Technical Field

[0001] The utility model relates to sampling equipment, in particular to a crop root excavation sampling device. Background Art

[0002] Tobacco Fusarium root rot is one of the main rhizome diseases in tobacco producing areas in my country. The biological control method using biocontrol bacteria that have antagonistic effects on tobacco Fusarium is highly efficient, pollution-free, and residue-free. Since there are many varieties of tobacco Fusarium, and the types of pathogenic bacteria in tobacco growing areas in different regions vary greatly, the acquisition of pathogenic bacteria and antagonistic bacteria requires sampling and processing of tobacco plants in diseased tobacco growing areas, wherein pathogenic bacteria are obtained from the roots of diseased tobacco plants, and antagonistic bacteria are obtained from the roots of healthy tobacco plants in the diseased areas. There are no dedicated root digging tools in the existing technology, and most people still use claw hooks for manual digging, which not only easily causes root breakage but also makes it difficult to collect rhizosphere soil. At the same time, tobacco plants are large in size and have deep roots. If the number of samples is large, the labor intensity will also increase accordingly. Utility Model Content

[0003] The purpose of the utility model is to provide a crop root excavation sampling device. The utility model improves the structure of a traditional soil sampler, can effectively excavate the tobacco plant roots, and is convenient for separating the soil attached to the roots.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A crop root sampling device includes a handle and a sampling tube connected to the bottom of the handle. The sampling tube is a cylindrical structure with a closed top and an open bottom. A motor is provided at the bottom of the handle. The output end of the motor is in transmission connection with the top of a transmission rod. The bottom of the transmission rod is coaxially connected to the top of the sampling tube. The sampling tube is also provided with a hinged assembly for clamping the roots of tobacco plants.

[0006] The sampling barrel wall is provided with a notch for accommodating the hinge assembly, and the notch is extended along the axial direction of the sampling barrel.

[0007] Preferably, the hinge assembly includes at least two sets of axially symmetrical hinge units, the hinge unit includes an active rod located above the sampling tube and a driven rod that cooperates with the corresponding notch gap, the bottom end of the active rod and the top end of the driven rod are hinged by a hinge, and the driven rod is hinged to the tube wall at the top end of the notch through a pin shaft.

[0008] Preferably, the top end of the active rod is connected to the outer wall of the sleeve through a hinge, and the sleeve is sleeved on the outer wall of the transmission rod.

[0009] Preferably, the inner wall of the sleeve is provided with a friction pad layer that is in close contact with the transmission rod.

[0010] Preferably, the sleeve outer wall is further provided with a foot pedal.

[0011] Preferably, the bottom end of the driven rod is higher than the bottom end of the sampling cylinder.

[0012] The working process of the utility model is as follows:

[0013] Firstly, the utility model is moved to the target position, after cutting off the surface stalks of tobacco plants, the sampling cylinder cover is arranged above the root of the tobacco plant, at this moment, the driven rod is arranged along the axial direction of the sampling cylinder, the included angle between the driving rod and the driven rod is obtuse, and the state is maintained through the friction between the sleeve friction pad layer and the transmission rod. Since the bottom end of the driven rod is higher than the bottom end of the sampling cylinder, the bottom end surface of the sampling cylinder presents a "sawtooth" structure, then the motor is started and the handle is pressed down, so that the sampling cylinder can quickly cut into the ground during rotation and gather the root system of the tobacco plant and the attached soil into the sampling cylinder.

[0014] Then the motor is turned off, the foot pedal is pressed down to make the sleeve drive the driving rod to move down, thereby reducing the included angle between the driving rod and the driven rod, the driven rod is turned around the pin shaft and the bottom end of the driven rod enters the inside of the sampling cylinder. The bottom end of the driven rod of the hinged unit forms a clamping structure for preventing the tobacco plant root system from sliding down, and the state is maintained through the friction between the sleeve friction pad layer and the transmission rod.

[0015] Then the utility model is lifted up to make the sampling cylinder and the root system and the soil attached to the root system in the cylinder move out of the bottom surface, the staff knocks the sampling cylinder to make the root system and the soil separate under the vibration effect, so that the soil and the root system can be collected separately.

[0016] It should be noted that the motor is powered by a mobile battery, and the control switch of the corresponding motor can be arranged on the handle.

[0017] Compared with the prior art, the utility model has the following advantages: the utility model is improved on the structure of the traditional soil sampler, can effectively mine the root system of the tobacco plant, and is convenient for separating the soil attached to the root system. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 The structure schematic view of the sampling device before sampling is described in the specific embodiment;

[0019] Fig. 2 The structure schematic view of the sampling device for clamping the root system of the tobacco plant is described in the specific embodiment. DETAILED DESCRIPTION

[0020] In order to make the utility model purposes, technical solutions and advantages more clearly, the following will be further described in detail with the drawings and examples.

[0021] As Figs. 1-2 shown, a crop root system digging sampling device, the device includes handle 3 and handle 4 bottom connection sampling barrel 1, the sampling barrel 1 is closed at the top, the bottom end is open barrel structure, the handle 4 bottom is equipped with motor 2, the output end of motor 2 is drivingly connected with the top of transmission rod 21, the bottom of transmission rod 21 is coaxially connected with the top end of sampling barrel 1, the sampling barrel 1 is also equipped with at least two sets of hinge units arranged symmetrically on the shaft:

[0022] Hinge unit includes driving rod 31 arranged above sampling barrel 1, and driven rod 32 gap matched with pre-set notch 11 of sampling barrel wall, the top end of driving rod 31 is connected with the outer wall of sleeve 34 through hinge 33, the sleeve 34 is sleeved on the outer wall of transmission rod 21, and the inner wall of sleeve 34 is provided with friction pad layer closely contacting transmission rod 21, and the outer wall of sleeve 34 is also provided with foot pedal 35.

[0023] The bottom end of driving rod 31 is hinged with the top end of driven rod 32 through hinge 33, the driven rod 32 is hinged with the wall of the cylinder at the top end of the corresponding notch 11 through pin shaft 12, and the bottom end of the driven rod 32 is higher than the bottom end of the sampling barrel 1 in horizontal height.

[0024] The working process of the utility model is as follows:

[0025] Firstly, the utility model is moved to the target position, after cutting off the surface stems of tobacco plants, the sampling barrel 1 is covered above the root of tobacco plant, at this moment, the driven rod 32 is arranged along the axial direction of the sampling barrel 1, the included angle between the driving rod 31 and the driven rod 32 is obtuse, and the state is maintained through the friction between the sleeve 34 friction pad layer and the transmission rod 21. Since the bottom end of the driven rod 32 is higher than the bottom end of the sampling barrel 1, the bottom end surface of the sampling barrel 1 presents a "sawtooth" structure, then the motor 2 is started and the handle 4 is pressed down, so that the sampling barrel 1 can quickly cut into the ground during rotation and gather the root system of tobacco plant and the attached soil into the sampling barrel 1.

[0026] Then, the motor 2 is closed, the foot pedal 35 is pressed down to make the sleeve 34 drive the driving rod 31 to move downward, so that the included angle between the driving rod 31 and the driven rod 32 is reduced, the driven rod 32 is turned around the pin shaft 12 and the bottom end of the driven rod 32 enters the inside of the sampling barrel 1. In this way, the bottom end of the driven rod 32 of the hinge unit forms a clamping structure for preventing the tobacco plant root system from sliding down, and the state is maintained through the friction between the sleeve 34 friction pad layer and the transmission rod 21.

[0027] Then the utility model makes the sampling cylinder 1 and the root system in the cylinder and the soil attached to the root system move out of the bottom surface, and the staff can make the root system and the soil separate under the vibration effect by knocking the sampling cylinder 1, so that the soil and the root system can be collected respectively.

[0028] Need to explain, the motor adopts the mobile battery power supply, and the control switch of the corresponding motor can be arranged on the handle 4.

Claims

1. A crop root sampling device, comprising a handle and a sampling tube connected to the bottom of the handle, wherein the sampling tube is a cylindrical structure with a closed top and an open bottom, characterized in that: The bottom of the handle is provided with a motor, the output end of the motor is connected to the top of the transmission rod, the bottom of the transmission rod is coaxially connected to the top of the sampling tube, and the sampling tube is also provided with a hinged assembly for clamping the roots of the tobacco plant. The hinge assembly includes at least two sets of axisymmetric hinge units, each of which includes an active rod located above the sampling cylinder and a driven rod that fits into a corresponding notch. The bottom end of the active rod is hinged to the top end of the driven rod via a hinge, and the driven rod is hinged to the cylinder wall at the top end of the notch via a pin. The top end of the active rod is connected to the outer wall of the sleeve via a hinge, and the sleeve is sleeved on the outer wall of the transmission rod. The sampling barrel wall is provided with a notch for accommodating the hinge assembly, and the notch is extended along the axial direction of the sampling barrel.

2. The crop root excavation sampling device according to claim 1, characterized in that: The inner wall of the sleeve is provided with a friction pad layer which is in close contact with the transmission rod.

3. The crop root excavation sampling device according to claim 2, characterized in that: The outer wall of the sleeve is also provided with a foot pedal.

4. The crop root excavation sampling device according to claim 1, characterized in that: The bottom end of the driven rod has a higher level than the bottom end of the sampling cylinder.

Images