Sampling frame for herbicide field efficacy test

Abstract

The utility model discloses a sampling frame for a herbicide field efficacy test, which comprises telescopic pipes and two-way connectors, the telescopic pipes form four sides of the sampling frame, the two-way connectors are positioned at four top corners of the sampling frame, and every two adjacent telescopic pipes are connected; a moving device is mounted below the telescopic pipe; an image device is detachably mounted above the telescopic pipe and the two-way connector; the shape and the size of the device can be adjusted, the device is convenient to store, carry and install, the device can be randomly thrown in a field, random longitude and latitude coordinates of the sampling unit can be generated through a geographic information positioning system and a computer program, and then the device is transferred to the corresponding longitude and latitude coordinates through a movement device; the field test randomness is improved, and the test result reliability is ensured; meanwhile, the weeding effect can be remotely observed and calculated through images, manpower is saved, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of field sampling devices, in particular to a sampling frame for herbicide field efficacy tests. Background Technique

[0002] Weeds are important factors affecting crop yield and quality. The effective use of herbicides is crucial for the sustainability of modern agricultural production. In order to evaluate the efficacy and safety of herbicides, field trials are required.

[0003] During the process of herbicide field trials, it is necessary to randomly select areas of equal area in the same plot for testing to achieve the objectivity of the test. At present, most herbicide field efficacy tests are carried out by measuring and dividing plots, and finally artificially selecting areas for testing. Such actual effects usually do not meet the randomness of the test.

[0004] During the test process, the calculation method of the weeding effect is as follows:

[0005]

[0006] In actual work, evaluators need to walk to the sampling unit to install sampling tools, such as wooden sticks fixed at the four corners of the sampling unit and ropes tied between the wooden sticks, and then observe and calculate the weeding effect; when the working area is too large and there are too many sampling units for which the weeding effect needs to be calculated, the work efficiency is low and the labor consumption is large. Content of the Utility Model

[0007] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a sampling frame for herbicide field efficacy tests, which can adjust its shape and size, is convenient for storage, carrying and installation; can be randomly thrown in the field, and can also use the geographic information positioning system and computer program to generate random sampling unit longitude and latitude coordinates, and then use the motion device to transfer to the corresponding longitude and latitude coordinates; improve the randomness of field trials and ensure the reliability of test results; at the same time, the weeding effect can be observed and calculated remotely through images, saving manpower and improving work efficiency.

[0008] In order to achieve the above object, the technical solution of the utility model is as follows:

[0009] A sampling frame for herbicide field efficacy tests includes telescopic tubes and double-pass connectors. There are four telescopic tubes, which form the four sides of the sampling frame; there are four double-pass connectors, which are located at the four top corners of the sampling frame and connect the adjacent telescopic tubes in pairs.

[0010] The telescopic tube includes a first telescopic tube and a second telescopic tube slidably connected inside the first telescopic tube. A length fixing buckle is provided on the first telescopic tube, and a number of length adjustment slots are equidistantly opened on the second telescopic tube. The length fixing buckle and the length adjustment slots are snap-fitted. One end of the second telescopic tube away from the first telescopic tube is welded with a section of end connector, and the cross-section of the end connector is the same as that of the first telescopic tube.

[0011] The double-pass connector includes a barbell-shaped rotating shaft and two rotatable sets sleeved on the column body of the rotating shaft and stacked up and down. The rotatable set is composed of a solid cylinder passing through the column body of the rotating shaft and a hollow set welded to the side of the solid cylinder. The hollow set on the rotatable set is welded to the corresponding end of the telescopic tube. When in use, only the lengths of a pair of telescopic tubes on the parallel sides need to be adjusted simultaneously.

[0012] The radius of the column body of the rotating shaft is smaller, and the radii at both ends are larger. The solid cylinders of the two hollow sets just fit on the column body of the rotating shaft, which can prevent slipping off from the column body. Taking the double-pass connector in the upper left corner as an example, the upper hollow set is welded to the starting end of the first telescopic tube of the right telescopic tube, and the lower hollow set is welded to the starting end of the first telescopic tube of the front telescopic tube. Taking the double-pass connector in the upper right corner as an example, the upper hollow set is welded to the end connector of the left telescopic tube, and the lower hollow set is welded to the end connector of the front telescopic tube.

[0013] As a further technical improvement, a number of angle adjustment holes are distributed along the axis on the solid cylinder. The angle adjustment holes are distributed on the outer edge of the solid cylinder and penetrate through the solid cylinder.

[0014] The angle adjustment hole is matched with a pin and a locking nut. The length of the pin is not less than the sum of the heights of the two rotatable sets, that is, the height of the column body of the rotating shaft. When in use, adjust the angle between the upper and lower rotatable sets, penetrate the angle adjustment holes on the upper and lower rotatable sets with the pin, and fix the pin with the locking nut at the other end, so as to fix the angle between adjacent two telescopic tubes.

[0015] As a further technical improvement, the cross-sections of the hollow set and the telescopic tube are rectangular.

[0016] As a further technical improvement, a motion device is installed below the telescopic tube.

[0017] There are two or four of the said motion devices, which are installed below a pair or two pairs of parallel first telescopic tubes; the motion device includes an integrated box, a frame and pulleys. The integrated box includes a motor, a battery pack, a controller and a GPS positioning system (not shown in the figure). The frame is connected to the motor and the pulleys; the integrated box is wirelessly connected to an external device. The external device is installed with random geographical coordinate generation software, which controls the motion device to move to the specified coordinates by generating random numbers, and the position of the corresponding sampling frame can be viewed in the external device.

[0018] As a further technical improvement, an imaging device is detachably arranged above the telescopic tube and the double-pass connector. The imaging device includes a camera bracket and a camera facing downward fixedly connected to the camera bracket; the camera can capture the image in the sampling frame, which is beneficial for the staff to remotely view the number of weeds in the sampling frame to judge the weeding effect.

[0019] As a further technical improvement, the camera bracket includes a pair of support crossbars that can be telescoped at both ends, bent pipe vertical rods connected to both ends of the support crossbars, and a bracket seat arranged at the upper end of the rotating shaft of each double-pass connector. The bottom of the bent pipe vertical rod and the bracket seat are detachably and cooperatively installed;

[0020] A camera is installed at the midpoint below the support crossbars. The support crossbars are rotatably connected to each other, and a buckled bowl-shaped protective cover is arranged between the camera and the support crossbars.

[0021] The working principle of the present utility model:

[0022] During use, adjust the length of the telescopic tubes on a pair of parallel sides and fix them with length fixing buckles. Adjust the angle between the upper and lower rotatable sets, insert a pin through the angle adjustment holes on the upper and lower rotatable sets, and fix the pin with a lock nut at the other end to fix the angle between adjacent telescopic tubes, thereby adjusting the shape of the sampling frame quadrilateral. Finally, randomly throw the sampling frame in the field test sampling for random sampling; use the random geographical coordinate generation software of the external device to control the motion device to move to the specified coordinates by generating random numbers, and the position of the corresponding sampling frame can be viewed in the external device. Finally, remotely view the captured image of the camera to view the number of weeds in the sampling frame to judge the weeding effect.

[0023] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0024] 1. The present utility model can adjust the shape and size, which is convenient for storage, carrying and installation.

[0025] 2. The utility model can be randomly thrown in the field, or the longitude and latitude coordinates of random sampling units can be generated by using a geographic information positioning system and a computer program, and then transferred to the corresponding longitude and latitude coordinates by using a moving device.

[0026] 3. The utility model can simultaneously observe and calculate the weeding effect remotely through images, saving manpower and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure assembly of Embodiments 1-2 in the utility model.

[0028] Figure 2 It is an exploded view of the structure of the double-pass connector and the telescopic tube in the utility model.

[0029] Figure 3 It is a schematic diagram of the structure assembly of Embodiment 3 in the utility model.

[0030] Figure 4 It is a schematic diagram of the structure assembly of Embodiments 4-5 in the utility model.

[0031] Figure 5 It is a side view of the camera bracket of Embodiment 5 in the utility model.

[0032] REFERENCE SIGNS

[0033] 1 - Telescopic tube, 11 - First telescopic tube, 111 - Length fixing buckle, 12 - Second telescopic tube, 121 - Length adjustment slot, 13 - End connector, 2 - Double-pass connector, 21 - Rotating shaft, 22 - Rotatable kit, 221 - Solid cylinder, 222 - Hollow kit, 223 - Angle adjustment hole, 224 - Plug, 225 - Locking nut, 3 - Moving device, 31 - Integrated box, 32 - Frame, 33 - Pulley, 4 - Imaging device, 41 - Camera bracket, 411 - Support cross bar, 412 - Bent rod vertical pole, 413 - Bracket base, 42 - Camera, 43 - Protective cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following further describes the utility model with reference to the drawings. Embodiment 1

[0035] A sampling frame for the field efficacy test of herbicides includes a telescopic tube 1 and a double-pass connector 2. Four telescopic tubes 1 are provided to form four sides of the sampling frame; four double-pass connectors 2 are provided at the four top corners of the sampling frame to connect two adjacent telescopic tubes 1 in pairs.

[0036] The telescopic tube 1 includes a first telescopic tube 11 and a second telescopic tube 12 slidably connected inside the first telescopic tube 11. A length fixing buckle 111 is provided on the first telescopic tube 11, and a number of length adjustment slots 121 are equidistantly arranged on the second telescopic tube 12. The length fixing buckle 111 and the length adjustment slots 121 are snap-fitted. One end of the second telescopic tube 12 away from the first telescopic tube 11 is welded with a section of end connector 13, and the cross-section of the end connector 13 is the same as that of the first telescopic tube 11;

[0037] The double-pass connector 2 includes a barbell-shaped rotating shaft 21 and two rotatable sleeves 22 stacked up and down sleeved on the column body of the rotating shaft 21. The rotatable sleeve 22 is composed of a solid cylinder 221 passing through the column body of the rotating shaft 21 and a hollow sleeve 222 welded to the side of the solid cylinder 221. The hollow sleeve 222 on the rotatable sleeve 22 is welded in cooperation with the corresponding end of the telescopic tube 1; When in use, only the lengths of a pair of telescopic tubes 1 on the parallel sides need to be adjusted simultaneously;

[0038] The column body radius of the rotating shaft 21 is smaller, and the radii at both ends are larger. The solid cylinders 221 of the two hollow sleeves 222 just fit on the column body of the rotating shaft 21, which can prevent slipping off from the column body; Taking the double-pass connector 2 in the upper left corner as an example, the upper hollow sleeve 222 is welded to the starting end of the first telescopic tube 11 of the right-side telescopic tube 1, and the lower hollow sleeve 222 is welded to the starting end of the first telescopic tube 11 of the front telescopic tube 1; Taking the double-pass connector 2 in the upper right corner as an example, the upper hollow sleeve 222 is welded to the end connector 13 of the left-side telescopic tube 1, and the lower hollow sleeve 222 is welded to the end connector 13 of the front telescopic tube 1. Embodiment 2

[0039] The difference from Embodiment 1 is that a number of angle adjustment holes 223 are axially distributed on the solid cylinder 221. The angle adjustment holes 223 are distributed on the outer edge of the solid cylinder 221 and penetrate through the solid cylinder 221;

[0040] The angle adjustment holes 223 cooperate with a plug 224 and a locking nut 225. The length of the plug 224 is not less than the sum of the heights of the two rotatable sleeves 22, that is, the height of the column body of the rotating shaft 21; When in use, adjust the angle between the upper and lower rotatable sleeves 22, penetrate the angle adjustment holes 223 on the upper and lower rotatable sleeves 22 with the plug 224, and fix the plug 224 with the locking nut 225 at the other end, so as to fix the angle between adjacent two telescopic tubes 1;

[0041] The cross-sections of the hollow sleeve 222 and the telescopic tube 1 are rectangular.

[0042] The working principle of this embodiment:

[0043] In use, adjust the length of the telescopic tube 1 of a pair of parallel sides and fix it with the length fixing buckle 111. Adjust the angle between the upper and lower rotatable kits 22. Insert the pin 224 through the angle adjustment holes 223 on the upper and lower rotatable kits 22, and fix the pin 224 with the locking nut 225 at the other end, so as to fix the angle between adjacent telescopic tubes 1, and then adjust the shape of the sampling frame quadrilateral. Finally, randomly throw the sampling frame during field test sampling for random sampling; when carrying, the sampling frame can be folded. Example 3

[0044] The difference from Example 2 is that a moving device 3 is installed below the telescopic tube 1;

[0045] There are two or four moving devices 3, which are installed below a pair or two pairs of parallel first telescopic tubes 1; the moving device 3 includes an integrated box 31, a vehicle frame 32 and a pulley 33. The integrated box 31 includes a motor, a battery pack, a controller and a GPS positioning system (not shown in the figure). The vehicle frame 32 connects the motor and the pulley 33; the integrated box 31 is wirelessly connected to an external device. The external device is installed with random geographical coordinate generation software. By generating random numbers and controlling the moving device 3 to move to the specified coordinates, the position of the corresponding sampling frame can be viewed in the external device at the same time. Example 4

[0046] The difference from Example 3 is that an imaging device 4 is detachably arranged above the telescopic tube 1 and the double-pass connector 2. The imaging device 4 includes a camera bracket 41 and a camera 42 facing downward fixedly connected to the camera bracket 41; the camera 42 can take images in the sampling frame, which is beneficial for the staff to remotely view the number of weeds in the sampling frame to judge the weeding effect. Example 5

[0047] The difference from Example 4 is that the camera bracket 41 includes a pair of support crossbars 411 that can be telescoped at both ends, curved pipe vertical rods 412 connected to both ends of the support crossbars 411, and bracket seats 413 arranged at the upper ends of the rotating shafts 21 of each double-pass connector 2. The bottom of the curved pipe vertical rod 412 and the bracket seat 413 are detachably fitted and installed;

[0048] A camera 42 is installed at the midpoint below the support crossbars 411. The support crossbars 411 are rotatably connected to each other, and a buckled bowl-shaped protective cover 43 is arranged between the camera 42 and the support crossbars 411.

[0049] The working principle of this example:

[0050] In use, adjust the length of the telescopic tube 1 of a pair of parallel sides and fix it with the length fixing buckle 111. Adjust the angle between the upper and lower rotatable kits 22. Insert the pin 224 through the angle adjustment holes 223 on the upper and lower rotatable kits 22, and fix the pin 224 with the locking nut 225 at the other end, so as to fix the angle between adjacent telescopic tubes 1, and then adjust the shape of the sampling frame quadrilateral. Finally, randomly throw the sampling frame in the field test sampling for random sampling; use the random geographical coordinate generation software of the external device to generate random numbers and control the movement device to move to the specified coordinates. At the same time, the position of the corresponding sampling frame can be viewed in the external device. Finally, remotely view the captured image of the camera 42 and check the number of weeds in the sampling frame to judge the weeding effect.

[0051] Obviously, the above embodiments are only examples for clearly illustrating the present invention, rather than limitations on the implementation of the present invention. For those of ordinary skill in the art to which the present invention pertains, other different forms of changes or modifications can be made based on the above description; it is not necessary and impossible to enumerate all the implementation manners here; and the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A sampling frame for field efficacy tests of herbicides, comprising a telescopic tube (1) and a two-way connector (2), characterized in that: Four telescopic tubes (1) are provided, forming the four sides of the sampling frame; four double - pass connectors (2) are provided, located at the four top corners of the sampling frame, and connecting two adjacent telescopic tubes (1) pairwise. The telescopic tube (1) includes a first telescopic tube (11) and a second telescopic tube (12) slidably connected inside the first telescopic tube (11). A length - fixing buckle (111) is provided on the first telescopic tube (11). A number of length - adjusting slots (121) are equidistantly arranged on the second telescopic tube (12). The length - fixing buckle (111) and the length - adjusting slots (121) are snap - fitted. One end of the second telescopic tube (12) away from the first telescopic tube (11) is welded with a section of end - connecting head (13), and the cross - section of the end - connecting head (13) is the same as that of the first telescopic tube (11). The double - pass connector (2) includes a barbell - shaped rotating shaft (21) and two rotatable sleeves (22) stacked one above the other sleeved on the column of the rotating shaft (21). The rotatable sleeve (22) is composed of a solid cylinder (221) passing through the column of the rotating shaft (21) and a hollow sleeve (222) welded to the side of the solid cylinder (221). The hollow sleeve (222) on the rotatable sleeve (22) is welded in cooperation with the corresponding end of the telescopic tube (1).

2. The sampling frame for the field efficacy test of herbicides according to claim 1, characterized in that: A number of angle - adjusting holes (223) are distributed along the axis on the solid cylinder (221). The angle - adjusting holes (223) are distributed on the outer edge of the solid cylinder (221) and penetrate through the solid cylinder (221). The angle - adjusting hole (223) cooperates with a bolt (224) and a locking nut (225). The length of the bolt (224) is not less than the sum of the heights of the two rotatable sleeves (22).

3. A sampling frame for field efficacy test of herbicides according to claim 1, characterized in that: The cross - sections of the hollow sleeve (222) and the telescopic tube (1) are rectangular.

4. A sampling frame for field efficacy test of herbicides according to claim 1, characterized in that: A motion device (3) is installed below the telescopic tube (1). Two or four motion devices (3) are provided, installed below a pair or two pairs of parallel first telescopic tubes (11). The motion device (3) includes an integrated box (31), a vehicle frame (32), and a pulley (33). The integrated box (31) includes a motor, a battery pack, a controller, and a GPS positioning system. The vehicle frame (32) connects the motor and the pulley (33).

5. A sampling frame for herbicide field efficacy test according to claim 1, characterized in that: Above the telescopic tube (1) and the double - pass connector (2), an imaging device (4) is detachably provided. The imaging device (4) includes a camera bracket (41) and a camera (42) facing downward fixedly connected to the camera bracket (41).

6. A sampling frame for field efficacy test of herbicides according to claim 1, characterized in that: The camera bracket (41) includes a pair of support cross - bars (411) that can be telescoped at both ends, bent - tube vertical rods (412) connected to both ends of the support cross - bars (411), and bracket seats (413) provided at the upper ends of the rotating shafts (21) of each double - pass connector (2). The bottom of the bent - tube vertical rod (412) and the bracket seat (413) are detachably and cooperatively installed. A camera (42) is installed at the midpoint below the support crossbar (411). The support crossbars (411) are rotatably connected to each other. A protective cover (43) in the shape of an inverted bowl is arranged between the camera (42) and the support crossbar (411).

Images