Device for testing the resistance to lodging of corn

Abstract

The utility model discloses a device for corn anti-lodging force test, specifically relates to the technical field of agricultural detection equipment, including fixed frame, the top of fixed frame is provided with the stable block, one side of stable block is fixedly provided with stable frame, the surface of fixed frame is provided with the sliding slot, the inside of sliding slot is provided with movable frame, the inside of stable frame and movable frame all are connected with the connecting block through bolt, one side of connecting block is provided with fixed mechanism, and fixed mechanism includes the U -shaped fixed frame of fixed setting in one side of connecting block, and both sides of U -shaped fixed frame all are fixedly installed with first electric telescopic handle. The utility model can realize automatic clamping process, and is suitable for different size corn stalks, guarantees the stability and accuracy of test process, improves the versatility and durability of device, and then is suitable for different soil environment, guarantees that test process has no displacement, and strengthens stability.

Description

Technical Field

[0001] This utility model relates to the field of agricultural testing equipment technology, and more specifically, to a device for testing the lodging resistance of corn. Background Technology

[0002] As an important food crop, the lodging resistance of corn has a crucial impact on yield and quality. During the growth process of corn, corn with poor lodging resistance is prone to lodging under the influence of natural factors such as wind and rain, leading to reduced yield or even crop failure. Therefore, accurately testing the lodging resistance of corn is of great significance for screening superior varieties, evaluating planting effects, and taking targeted lodging resistance measures.

[0003] Existing institutions cannot adjust the height of the testing instrument according to the different heights of corn stalks, which means that it is necessary to find suitable corn stalks for testing the lodging resistance of corn stalks, which is time-consuming and labor-intensive. Furthermore, the corn stalks and the kit cannot be stably fixed when testing for lodging resistance, and the kit is prone to sliding on the corn stalks when they fall, resulting in inaccurate test data.

[0004] A search revealed that Chinese patent CN219391662U discloses a corn stalk lodging resistance tester. This structure features a fixed testing mechanism that allows for fixation at different positions on the stalk, preventing slippage during testing and improving data accuracy. The internal threaded tube and second threaded rod allow for adjustment of the U-shaped block position, enhancing testing efficiency. Furthermore, the universal joint can simulate different lodging directions of the stalk. In terms of adjustment and adaptation, the included adjustment mechanism allows users to randomly select a corn stalk and adjust the mounting height by rotating the third threaded rod, securing the fixed component at the appropriate position on the stalk. This convenient operation eliminates the need to select stalks based on the tester's requirements, significantly improving the efficiency of lodging resistance testing and demonstrating strong practicality.

[0005] However, in actual use, the structure of the U-shaped block and the insert plate may only be suitable for corn stalks of a specific diameter. For stalks with large differences in thickness, different varieties, or different growth stages, it may not be able to be stably fixed, which may easily lead to slippage or damage to the stalks during testing. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a device for testing the lodging resistance of corn, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A device for testing the lodging resistance of corn includes a fixed frame, a stabilizing block on the top of the fixed frame, a stabilizing frame fixedly mounted on one side of the stabilizing block, a sliding groove on the surface of the fixed frame, a movable frame inside the sliding groove, connecting blocks inside the stabilizing frame and the movable frame connected by bolts, and a fixing mechanism on one side of the connecting block.

[0009] The fixing mechanism includes a U-shaped fixing frame fixedly installed on one side of the connecting block. A first electric telescopic rod is fixedly installed on both sides of the U-shaped fixing frame. A connecting frame is fixedly installed at the output end of the first electric telescopic rod. An installation groove is opened on the surface of the connecting frame. A connecting plate is inserted into the installation groove. A rubber layer is fixedly installed on one side of the connecting plate. The connecting frame and the connecting plate are connected by bolts.

[0010] The inner wall of the U-shaped fixing frame is provided with a guide groove, and a T-shaped slider is slidably arranged inside the guide groove. One end of the T-shaped slider is connected to the connecting frame.

[0011] The surface of the movable frame is provided with a threaded groove, and a stepper motor is fixedly installed on one side of the fixed frame. A threaded rod is fixedly provided at the output end of the stepper motor, and the threaded rod matches the threaded groove.

[0012] By adopting the above technical solutions: the modular fixing mechanism facilitates maintenance, the electric telescopic and slider guide structure achieves stable clamping, and the coordinated operation of each component ensures the stability and accuracy of the testing process, while also improving the versatility and durability of the device.

[0013] As a further description of the above technical solution: an auxiliary mechanism is provided inside the fixed frame, the auxiliary mechanism including a second electric telescopic rod fixedly installed inside the fixed frame, an adjusting bar fixedly provided at the output end of the second electric telescopic rod, and one end of the adjusting bar being connected to a stabilizing block;

[0014] A universal joint is fixedly installed at the bottom of the fixed frame, a fixed base is fixedly provided at the bottom of the universal joint, and a protruding block is fixedly provided on the surface of the fixed base.

[0015] By adopting the above technical solution, more flexible and stable support is provided. The second electric telescopic rod drives the adjustment bar to move the movable frame, which can quickly make a wide range of height adjustments. The stepper motor is linked to the threaded rod, which can accurately adjust the height of the movable frame.

[0016] As a further description of the above technical solution: the protruding block is internally threaded with a threaded cone, one end of which is fixedly provided with a handle, a push-pull force gauge is fixedly installed on the top of the U-shaped fixing frame, a controller is fixedly installed on one side of the fixing frame, and a display screen is fixedly provided on one side of the controller.

[0017] By adopting the above technical solution: the universal joint, together with the fixed seat and the protruding block, can not only flexibly adapt to different plant positions, but also achieve stable fixation by screwing the threaded cone into the soil, so that the device can operate reliably in complex field environments, effectively improving testing efficiency and accuracy.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] 1. By setting up a fixing mechanism, compared with the existing technology, the stable frame and the movable frame are connected by bolts, which can be quickly disassembled and replaced. The connecting frame and the connecting plate adopt a bolt fixing and mounting groove cooperation structure, which facilitates the individual disassembly of the rubber layer, reduces maintenance costs, and improves the continuity of operation. Moreover, the first electric telescopic rod extends to drive the connecting frame to move towards the corn plant. With the sliding guidance of the T-shaped slider and the U-shaped fixing frame guide groove, the movement trajectory is stable and deviation is avoided. At the same time, the first electric telescopic rods on both sides work together to make the rubber layer of the connecting plate clamp the plant from both sides. The rubber layer material increases the friction to ensure the clamping firmness, and avoids damage to the corn stalk through flexible contact, adapting to the fragile characteristics of the plant, realizing an automated clamping process, and adapting to corn stalks of different sizes.

[0020] 2. By setting up an auxiliary mechanism, compared with existing technologies, by holding the handle and rotating the threaded cone, it is screwed into the soil through the threaded hole of the protruding block. The device is firmly fixed to the ground by utilizing the friction of the thread and the synergistic effect of the protruding block of the fixed seat. It is adaptable to different soil environments and ensures no displacement during the testing process. Moreover, the stepper motor links the threaded rod and the threaded groove of the movable frame, which can precisely control the up and down movement of the movable frame according to preset parameters, balancing efficiency and accuracy, and adapting to plants of different heights. In addition, the fixed frame can flexibly adjust the angle through the universal joint, measure and transmit data to the controller in real time, accurately capture the maximum tensile force value at the moment of plant breakage, reduce the complexity of operation, improve the testing efficiency and standardization level, and is suitable for testing needs in multiple field scenarios. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the fixing mechanism of this utility model.

[0023] Figure 3 This is a schematic diagram of the disassembled structure of the fixing mechanism of this utility model.

[0024] Figure 4 This is a cross-sectional structural diagram of the auxiliary mechanism of this utility model.

[0025] Figure 5 This is a schematic diagram of the overall front view of the present invention.

[0026] Figure 6 This is a schematic diagram of the system of this utility model.

[0027] The attached figures are labeled as follows: 1. Fixed frame; 2. Stabilizing block; 3. Stabilizing frame; 4. Movable frame; 5. Connecting block; 6. U-shaped fixed frame; 7. First electric telescopic rod; 8. Connecting frame; 9. Connecting plate; 10. Rubber layer; 11. T-shaped slider; 12. Stepper motor; 13. Threaded rod; 14. Second electric telescopic rod; 15. Adjusting bar; 16. Universal joint; 17. Fixed seat; 18. Protrusion block; 19. Threaded ground cone; 20. Handle; 21. Push-pull force gauge; 22. Controller; 23. Display screen. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The embodiments disclosed in this application are as follows: Figure 1-6 The device shown for testing the lodging resistance of corn includes a fixed frame 1, a stabilizing block 2 on the top of the fixed frame 1, a stabilizing frame 3 fixedly mounted on one side of the stabilizing block 2, a sliding groove on the surface of the fixed frame 1, a movable frame 4 inside the sliding groove, and connecting blocks 5 bolted to the interiors of both the stabilizing frame 3 and the movable frame 4. A fixing mechanism is provided on one side of the connecting block 5.

[0030] The fixing mechanism includes a U-shaped fixing frame 6 fixedly installed on one side of the connecting block 5. A first electric telescopic rod 7 is fixedly installed on both sides of the U-shaped fixing frame 6. A connecting frame 8 is fixedly installed at the output end of the first electric telescopic rod 7. An installation groove is opened on the surface of the connecting frame 8. A connecting plate 9 is inserted into the installation groove. A rubber layer 10 is fixedly installed on one side of the connecting plate 9. The connecting frame 8 and the connecting plate 9 are connected by bolts.

[0031] The inner wall of the U-shaped fixing frame 6 is provided with a guide groove, and a T-shaped slider 11 is slidably arranged inside the guide groove. One end of the T-shaped slider 11 is connected to the connecting frame 8.

[0032] The surface of the movable frame 4 is provided with a threaded groove. A stepper motor 12 is fixedly installed on one side of the fixed frame 1. A threaded rod 13 is fixedly provided at the output end of the stepper motor 12, and the threaded rod 13 matches the threaded groove.

[0033] The stable frame 3 and the movable frame 4 are connected by bolts to the connecting block 5, which makes it easy to disassemble and replace the connecting block 5. Then, the first electric telescopic rod 7 is connected to the external power supply and started. The first electric telescopic rod 7 extends and drives the connecting frame 8 to move towards the corn plant. The connecting frame 8 slides in the guide groove on the inner wall of the U-shaped fixed frame 6 through the T-shaped slider 11 to ensure the stability of the movement.

[0034] When the connecting frame 8 approaches the corn plant, the rubber layer 10 on one side of the connecting plate 9 adheres to the corn plant. The first electric telescopic rods 7 on both sides work together to clamp the corn plant from both sides. The rubber layer 10 can increase friction and avoid damaging the plant.

[0035] Furthermore, when it is necessary to replace the rubber layer 10, unscrew the bolts between the connecting frame 8 and the connecting plate 9, and then pull the connecting plate 9 out of the mounting groove on the surface of the connecting frame 8, thereby removing the rubber layer 10 on one side of the connecting plate 9.

[0036] Reference Figure 2-3 As shown, an auxiliary mechanism is provided inside the fixed frame 1. The auxiliary mechanism includes a second electric telescopic rod 14 fixedly installed inside the fixed frame 1. An adjusting bar 15 is fixedly provided at the output end of the second electric telescopic rod 14. One end of the adjusting bar 15 is connected to the stabilizing block 2.

[0037] A universal joint 16 is fixedly installed at the bottom of the fixed frame 1, a fixed seat 17 is fixedly provided at the bottom of the universal joint 16, and a protrusion 18 is fixedly provided on the surface of the fixed seat 17.

[0038] According to the height of the corn plant, the second electric telescopic rod 14 is connected to an external power source. Then, the second electric telescopic rod 14 is started by the controller 22. When the second electric telescopic rod 14 extends and retracts, it drives the adjusting bar 15 to move. The adjusting bar 15 pushes the movable frame 4 to slide in the groove to adjust the position of the movable frame 4.

[0039] If more precise or rapid adjustment of the position of the movable frame 4 is required, connect the stepper motor 12 to an external power supply, then set the rotation parameters of the stepper motor 12 through the controller 22, start the stepper motor 12, and the threaded rod 13 at its output end will start to rotate. Since the threaded rod 13 matches the threaded groove on the surface of the movable frame 4, the rotation of the threaded rod 13 drives the movable frame 4 to move up and down in the sliding groove on the surface of the fixed frame 1, so as to achieve precise adjustment of the height of the movable frame 4 and further adjust the position of the movable frame 4.

[0040] Reference Figure 4-5As shown, the protruding block 18 has a threaded ground cone 19 connected to its internal thread. One end of the threaded ground cone 19 is fixedly provided with a handle 20. The top of the U-shaped fixed frame 6 is fixedly installed with a push-pull force gauge 21. One side of the fixed frame 1 is fixedly installed with a controller 22. One side of the controller 22 is fixedly provided with a display screen 23.

[0041] Hold the handle 20 and rotate the threaded cone 19 so that it is screwed into the soil through the threaded hole on the protrusion 18. Utilize the friction between the threaded cone 19 and the soil, and in conjunction with the protrusion 18 on the fixing seat 17, to firmly fix the entire device to the ground. The universal joint 16 allows the fixing frame 1 to flexibly adjust its angle to adapt to different plant positions.

[0042] After the corn plant is fixed, the fixing frame 1 is manually rotated around the universal joint 16 to simulate the process of the corn plant falling over. During the rotation of the fixing frame 1, the corn plant is subjected to tension, which is transmitted to the U-shaped fixing frame 6. The push-pull force gauge 21 at the top of the U-shaped fixing frame 6 measures the magnitude of the tension in real time and transmits the data to the controller 22.

[0043] When the corn plant breaks due to insufficient tension, the push-pull force gauge 21 records the maximum tension value. The controller 22 processes the data and displays it on the display screen 23, allowing the tester to intuitively obtain the lodging resistance data of the corn plant.

[0044] Working principle of this utility model:

[0045] This utility model is a device for testing the lodging resistance of corn. When using the device, move the device next to the corn plant to be tested, hold the handle 20 and rotate the threaded ground cone 19 so that it is screwed into the soil through the threaded hole on the protrusion 18. Using the friction between the threaded ground cone 19 and the soil, and in conjunction with the protrusion 18 on the fixing seat 17, the entire device is firmly fixed to the ground. The universal joint 16 allows the fixing frame 1 to flexibly adjust the angle to adapt to different plant positions.

[0046] Next, according to the height of the corn plant, the second electric telescopic rod 14 is connected to an external power source. Then, the second electric telescopic rod 14 is started by the controller 22. When the second electric telescopic rod 14 extends and retracts, it drives the adjusting bar 15 to move. The adjusting bar 15 pushes the movable frame 4 to slide in the groove to adjust the position of the movable frame 4.

[0047] If more precise or rapid adjustment of the position of the movable frame 4 is required, connect the stepper motor 12 to an external power supply, and then set the rotation parameters of the stepper motor 12 through the controller 22. Start the stepper motor 12, and the threaded rod 13 at its output end will start to rotate. Since the threaded rod 13 matches the threaded groove on the surface of the movable frame 4, the rotation of the threaded rod 13 drives the movable frame 4 to move up and down in the sliding groove on the surface of the fixed frame 1, so as to achieve precise adjustment of the height of the movable frame 4 and further adjust the position of the movable frame 4.

[0048] The stable frame 3 and the movable frame 4 are connected by bolts to the connecting block 5, which makes it easy to disassemble and replace the connecting block 5. Then, the first electric telescopic rod 7 is connected to the external power supply and started. The first electric telescopic rod 7 extends and drives the connecting frame 8 to move towards the corn plant. The connecting frame 8 slides in the guide groove on the inner wall of the U-shaped fixed frame 6 through the T-shaped slider 11 to ensure the stability of the movement.

[0049] When the connecting frame 8 approaches the corn plant, the rubber layer 10 on one side of the connecting plate 9 adheres to the corn plant. The first electric telescopic rods 7 on both sides work together to clamp the corn plant from both sides. The rubber layer 10 can increase friction and avoid damaging the plant.

[0050] And when it is necessary to replace the rubber layer 10, unscrew the bolts between the connecting frame 8 and the connecting plate 9, and then pull the connecting plate 9 out of the mounting groove on the surface of the connecting frame 8, thereby removing the rubber layer 10 on one side of the connecting plate 9.

[0051] After the corn plant is fixed, the fixing frame 1 is manually rotated around the universal joint 16 to simulate the process of the corn plant falling over. During the rotation of the fixing frame 1, the corn plant is subjected to a pulling force, which is transmitted to the U-shaped fixing frame 6. The push-pull force gauge 21 at the top of the U-shaped fixing frame 6 measures the magnitude of the pulling force in real time and transmits the data to the controller 22. The push-pull force gauge 21 is a SHIMPO push-pull force gauge, and the controller 22 is an STM32F103 series microcontroller.

[0052] When the corn plant breaks due to insufficient tension, the push-pull force gauge 21 records the maximum tension value. The controller 22 processes the data and displays it on the display screen 23, which is a 23ILI9341 LCD display. The tester can intuitively obtain the lodging resistance data of the corn plant.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for testing the lodging resistance of corn, comprising a fixed frame (1), characterized in that: The top of the fixed frame (1) is provided with a stabilizing block (2), and a stabilizing frame (3) is fixedly provided on one side of the stabilizing block (2). A sliding groove is provided on the surface of the fixed frame (1), and a movable frame (4) is provided inside the sliding groove. Both the stabilizing frame (3) and the movable frame (4) are connected by bolts to a connecting block (5). A fixing mechanism is provided on one side of the connecting block (5). The fixing mechanism includes a U-shaped fixing frame (6) fixedly installed on one side of the connecting block (5). A first electric telescopic rod (7) is fixedly installed on both sides of the U-shaped fixing frame (6). A connecting frame (8) is fixedly installed at the output end of the first electric telescopic rod (7). An installation groove is opened on the surface of the connecting frame (8). A connecting plate (9) is inserted into the inside of the installation groove. A rubber layer (10) is fixedly installed on one side of the connecting plate (9). The connecting frame (8) and the connecting plate (9) are connected by bolts.

2. The device for testing the resistance to lodging of corn according to claim 1, characterized in that: The inner wall of the U-shaped fixing frame (6) is provided with a guide groove, and a T-shaped slider (11) is slidably arranged inside the guide groove. One end of the T-shaped slider (11) is connected to the connecting frame (8). The surface of the movable frame (4) is provided with a threaded groove, and a stepper motor (12) is fixedly installed on one side of the fixed frame (1). A threaded rod (13) is fixedly provided at the output end of the stepper motor (12), and the threaded rod (13) matches the threaded groove.

3. The device for testing the resistance to lodging of corn plants according to claim 1, characterized in that: An auxiliary mechanism is provided inside the fixed frame (1). The auxiliary mechanism includes a second electric telescopic rod (14) fixedly installed inside the fixed frame (1). An adjusting bar (15) is fixedly provided at the output end of the second electric telescopic rod (14). One end of the adjusting bar (15) is connected to the stabilizing block (2).

4. The device for testing the resistance to lodging of corn plants according to claim 1, characterized in that: A universal joint (16) is fixedly installed at the bottom of the fixed frame (1), a fixed seat (17) is fixedly provided at the bottom of the universal joint (16), and a protrusion (18) is fixedly provided on the surface of the fixed seat (17).

5. The device for testing the resistance to lodging of corn plants according to claim 4, characterized in that: The protrusion (18) is internally threaded with a threaded cone (19), and a handle (20) is fixedly provided at one end of the threaded cone (19).

6. The device for testing the resistance to lodging of corn plants according to claim 1, characterized in that: A push-pull force gauge (21) is fixedly installed on the top of the U-shaped fixed frame (6), a controller (22) is fixedly installed on one side of the fixed frame (1), and a display screen (23) is fixedly installed on one side of the controller (22).

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