Saline-alkali soil cotton field soil conditioner applying device

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a saline-alkali soil cotton field soil conditioner applying device which comprises a mounting plate, and one side of the mounting plate is fixedly connected with a connecting frame used for being connected with a traction instrument; the feeding mechanism is fixedly mounted on the top surface of the mounting plate; the detection mechanism is fixedly mounted on one side, close to the connecting frame, of the top surface of the mounting plate; the two groups of injection mechanisms are fixedly mounted on the two sides, adjacent to the detection mechanism, of the bottom surface of the mounting plate respectively; the control module is arranged on the mounting plate, is electrically connected with the feeding mechanism, the detection mechanism and the injection and application mechanisms, and is used for controlling the feeding mechanism to supply a powdery modifier to the two groups of injection and application mechanisms after receiving a detection signal of the detection mechanism to the positions of the cotton seedlings; and the two groups of injection and application mechanisms are controlled to inject and apply the modifier to the detected soil near the cotton seedlings.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanized agricultural and horticultural implement manufacturing, in particular to a saline-alkali soil cotton field soil conditioner application device. BACKGROUND

[0002] Cotton field is an important economic crop planting field in China, and its planting in saline-alkali regions faces severe challenges. Saline-alkali stress often leads to low cotton emergence rate, weak seedling condition, poor stress resistance, and ultimately affects cotton yield and quality. To alleviate the harm of saline-alkali soil to cotton, soil conditioner application is a key technical means. Soil conditioner can adjust soil pH, improve soil structure, and reduce salt content, creating a suitable soil environment for cotton growth. Among them, precise application of the conditioner near the seedling soil during the cotton emergence stage (seedling stage to bud stage) is particularly effective. At this stage, the cotton root system has not yet developed, and the distribution range is concentrated in the soil around the seedling. At this time, the conditioner is directly delivered to the key part of the root zone, which can be quickly absorbed and utilized by the root system, timely alleviate the saline-alkali stress, promote the expansion of the root system and the healthy growth of the seedling, and lay a foundation for subsequent high yield. If this period is missed, the cotton root system will be damaged and difficult to recover, and the effect of the conditioner application will be greatly reduced.

[0003] The existing saline-alkali soil cotton field soil conditioner application method is mainly mechanical general application. Although this method has high efficiency, it has the problems of uneven distribution of the conditioner and inability to precisely target the root zone. Moreover, large-scale mechanical operation is easy to cause collision damage to the fragile cotton seedling stems and roots, especially not suitable for film-covered cotton fields. SUMMARY

[0004] The purpose of the present application is to provide a saline-alkali soil cotton field soil conditioner application device to solve the problems raised in the background.

[0005] The purpose of the present application can be achieved by the following technical solutions: A saline-alkali soil cotton field soil conditioner application device, comprising: A mounting plate, one side of the mounting plate is fixedly connected with a connecting frame for connecting with a traction instrument; A feeding mechanism fixedly installed on the top surface of the mounting plate; A detection mechanism fixedly installed on one side of the top surface of the mounting plate close to the connecting frame; An injection mechanism, provided with two groups, respectively fixedly installed on both sides of the bottom surface of the mounting plate adjacent to the detection mechanism; And a control module arranged on the mounting plate, the control module is electrically connected with the feeding mechanism, the detection mechanism and the injection mechanism, and the control module is used for controlling the feeding mechanism to supply the powdered modifier to the two groups of injection mechanisms after receiving the detection signal of the detection mechanism on the position of the cotton seedling, and controlling the two groups of injection mechanisms to perform the modifier injection action on the soil near the detected cotton seedling.

[0006] Further, the detection mechanism comprises two hinged seats one fixedly arranged at the positions of the two ends of the bottom surface of the mounting plate, the hinged seat one is fixedly connected with a boom, the boom is bended at the end away from the hinged seat one, and the detection assembly is rotatably arranged at the bended end of the boom, the detection assembly is electrically connected with the control module, the two groups of detection assemblies are in the shape of horn with the opening end close to the connecting frame. The outer periphery of the boom is fixedly provided with the hinged seat two at the position close to the hinged seat one, and the adjusting assembly fixedly arranged on the bottom surface of the mounting plate is arranged between the two hinged seat two, the adjusting assembly is used for adjusting the distance between the two groups of detection assemblies.

[0007] Further, the detection assembly comprises the column rotatably connected with the boom, the outer periphery of the column is sleeved with the coaxial sleeve, the outer periphery of the sleeve is covered with the flexible material layer, and the inner wall of the sleeve and the outer periphery of the column are fixedly connected with the multiple uniformly distributed springs one. The end of the column away from the boom is provided with the photoelectric sensor for sensing the passing seedling, and the photoelectric sensor is electrically connected with the control module.

[0008] Further, the adjusting assembly comprises the two telescopic booms fixedly arranged on the bottom surface of the mounting plate, the rotatable bidirectional internal thread cylinder is arranged through the bottom ends of the two telescopic booms, the knob is fixedly arranged at the middle position of the outer periphery of the bidirectional internal thread cylinder, the two ends of the bidirectional internal thread cylinder are threadedly connected with the screw rods, the ends of the two screw rods away from the bidirectional internal thread cylinder are fixedly connected with the corresponding hinged seat two, and the screw rods are hingedly connected with the boom through the hinged seat two.

[0009] Further, the feeding mechanism comprises the air compressor, the stock bin and the material guiding structure; the stock bin is arranged above the mounting plate, and the multiple supporting rods are arranged between the stock bin and the mounting plate. The air compressor is fixedly arranged on the top surface of the mounting plate, the three-way joint is fixedly arranged at the air outlet end of the air compressor, and the two ends of the three-way joint away from the air compressor are connected with a group of the material guiding structure.

[0010] Further, the material guiding structure comprises a guide pipe penetrating the mounting plate, a top end of the guide pipe is fixedly provided with a Venturi tube, the air inlet is fixedly connected with a gas guide pipe, one end of the gas guide pipe away from the Venturi tube is fixedly connected with the three-way pipe, the negative pressure section of the Venturi tube is penetratingly connected with a material guide pipe, one end of the material guide pipe away from the Venturi tube is connected with the discharge port of the material bin, the material guide pipe is provided with a solenoid valve one, and the gas guide pipe is provided with a solenoid valve two; A bottom end of the guide pipe is fixedly connected with a flexible guide pipe, one end of the flexible guide pipe away from the guide pipe is fixedly connected with a injection pipe fixedly installed between the injection mechanism, and a bottom end of the injection pipe is fixedly provided with a duckbill injection head.

[0011] Further, the injection mechanism comprises a hanging plate fixedly installed on the bottom surface of the mounting plate, an inner side surface of the hanging plate is fixedly provided with an anti-resistance assembly, the anti-resistance assembly is slidingly installed with a lifting seat, a top of the lifting seat is provided with a fixing ring for fixedly installing the injection pipe, and a top surface of the lifting seat is fixedly installed with a connecting assembly. An inner side surface of the hanging plate is fixedly provided with a convex seat, a bottom surface of the convex seat is fixedly installed with an electric push rod, and a telescopic end of the electric push rod is drivingly connected with the connecting assembly.

[0012] Further, the anti-resistance assembly comprises a fixed seat one, both ends of the inner side surface of the horizontal plate are fixedly installed with the fixed seat one, two guide rods one are fixedly connected between the two fixed seat ones, a sliding seat is provided between the two fixed seat ones and is penetratingly slidingly connected with the two guide rods one, two springs two are respectively sleeved on the periphery of the two guide rods one and are provided between one end of the sliding seat and the corresponding fixed seat one, and two springs three are respectively sleeved on the periphery of the guide rod one and are provided between the other end of the sliding seat and the corresponding fixed seat one. Both ends of the inner side surface of the sliding seat are fixedly installed with a fixed seat two, two guide rods two are fixedly connected between the two fixed seat two, and the lifting seat is provided between the two fixed seat two and is penetratingly slidingly connected with the two guide rods two.

[0013] Further, the connecting assembly comprises a top rod fixedly installed on the top surface of the lifting seat, a top end of the top rod is fixedly installed with a lifting strip, a top surface of the lifting strip is provided with a sliding groove along the length direction of the lifting strip, the sliding groove is a T-shaped structure, a sliding block is slidingly clamped in the sliding groove, the sliding block is a circular structure, and a telescopic end of the corresponding electric push rod is drivingly connected with the top surface of the sliding block after extending into the sliding groove.

[0014] The beneficial effects of the present application are as follows: 1. The present application adopts the pneumatic conveying mode, avoids the deposition of the modifier pipeline, and directly injects the duckbill injection head into the soil, so as to solve the problems of powder scattering pollution of leaves and easy clogging of the spray head, and reduce the environmental dust pollution.

[0015] 2. By setting up the anti-resistance components, the present invention keeps the duckbill injection head relatively stationary with respect to the ground, ensuring uniform injection depth and effective distribution of the soil conditioner in the root zone, thereby improving the soil conditioner effect. At the same time, it reduces the travel resistance of the device and reduces wear on the duckbill injection head.

[0016] 3. This invention uses a detection component to accurately detect the location of seedlings and, in conjunction with a control module, enables one application per seedling, directly delivering the plant growth regulator to key parts of the root zone from the seedling stage to the bud stage of cotton, effectively improving the utilization rate of the plant growth regulator.

[0017] 4. The flexible material layer and spring-buffered structure of the detection component enable flexible contact with the seedlings, effectively protecting the fragile cotton seedling stems. Furthermore, the slanted trumpet-shaped guide structure design reduces the rate of missed detections of seedlings, ensuring the quality of the amendment application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the connection relationship between the detection mechanism and the mounting plate in this invention; Figure 3 yes Figure 2 Enlarged view of section A; Figure 4 This is a schematic diagram of the detection component in this invention; Figure 5 This is a three-dimensional schematic diagram of the connection relationship between the injection mechanism and the mounting plate in this invention; Figure 6 yes Figure 5 Enlarged view of section B; Figure 7 yes Figure 5 A three-dimensional diagram from another angle; Figure 8 yes Figure 7 Enlarged view of section C; The attached figures are labeled as follows: 1-Mounting plate, 2-Hopper, 3-Support rod, 4-Air compressor, 5-Connecting frame, 6-Tee, 7-Conduit, 8-Venturi tube, 9-Feed guide tube, 10-Air guide tube, 11-Flexible conduit, 12-Detection mechanism, 13-Injection mechanism, 14-Hinge seat one, 15-Lifting rod, 16-Detection assembly, 17-Photoelectric sensor, 18-Screw, 19-Telescopic lifting rod, 20-Bidirectional internal threaded cylinder, 21-Knob, 22-Hinge seat two, 2 3-Sleeve, 24-Spring 1, 25-Column, 26-Hanging plate, 27-Horizontal plate, 28-Fixed seat 1, 29-Guide rod 1, 30-Spring 2, 31-Spring 3, 32-Injection pipe, 33-Duckbill injection head, 34-Protrusion seat, 35-Electric push rod, 36-Lifting bar, 37-Reinforcing rod, 38-Slide seat, 39-Fixed seat 2, 40-Guide rod 2, 41-Lifting seat, 42-Fixed ring, 43-Top rod, 44-Slide groove, 45-Slider. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1 In this embodiment of the invention, a soil conditioner application device for saline-alkali cotton fields is characterized by comprising: Mounting plate 1, with a connecting bracket 5 for connecting to the traction device fixedly connected to one side of the mounting plate 1; A feeding mechanism fixedly installed on the top surface of mounting plate 1; The detection mechanism 12 is fixedly installed on the top surface of the mounting plate 1 on the side near the connecting frame 5; The injection mechanism 13 is provided in two sets, which are fixedly installed on the bottom surface of the mounting plate 1 on both sides adjacent to the detection mechanism 12. The control module is installed on the mounting plate 1. The control module is electrically connected to the feeding mechanism, the detection mechanism 12 and the injection mechanism 13. The control module is used to control the feeding mechanism to supply powdered amendment to the two injection mechanisms 13 after receiving the detection signal of the cotton seedling position from the detection mechanism 12, and to control the two injection mechanisms 13 to perform amendment injection on the soil near the detected cotton seedling.

[0021] This device is suitable for cotton seedlings to budding stages, a critical window for cotton to resist salt and alkali stress. At this time, cotton seedlings have shallow roots, concentrated around the periphery of the plant, and their stems and roots are relatively fragile, exhibiting low tolerance to saline-alkali environments and mechanical damage. Precise application of soil conditioner at this stage can rapidly improve the soil environment in the root zone, alleviate the inhibitory effect of salt and alkali on the roots, promote root growth and nutrient absorption, and, since the spacing between cotton seedlings is relatively fixed during this period, it facilitates precise positioning of the detection mechanism 12, maximizing the effect of the conditioner and ensuring the subsequent growth and development of cotton.

[0022] This device is connected to a traction device via a connecting frame 5, which moves the device along the planting rows of the cotton field. During operation, the control module coordinates the operation of the feeding mechanism, the detection mechanism 12, and the application mechanism 13 throughout the process, achieving integrated automated operation of "detection-feeding-application". When the detection mechanism 12 detects a seedling signal, it immediately transmits the signal to the control module. The control module responds quickly and simultaneously controls the feeding mechanism to start feeding and the application mechanism 13 to execute the application action, achieving precise targeted application to each seedling.

[0023] The control module includes core components such as power supply and PLC controller. Its control method adopts existing mature electrical control technology. It receives signals, makes logical judgments and outputs control commands through a preset program, without the need to develop new control algorithms.

[0024] Example 2: Please refer to Figure 2 and Figure 3 Based on embodiment 1, the detection mechanism 12 includes two hinge seats 14 that are fixedly installed at both ends of the bottom surface of the mounting plate 1. The hinge seats 14 are fixedly connected to the rods 15. The end of the rods 15 away from the hinge seats 14 is bent and rotatably mounted with the detection components 16. The detection components 16 are electrically connected to the control module. The two sets of detection components 16 have an upwardly flared structure, and the end with the larger opening is the end closer to the connecting frame 5. A second hinge seat 22 is fixedly installed on the periphery of the boom 15 at one end near the first hinge seat 14. An adjustment assembly is fixedly installed on the bottom surface of the mounting plate 1 between the two second hinge seats 22. The adjustment assembly is used to adjust the distance between the two sets of detection assemblies 16.

[0025] During the movement of the device, the two sets of trumpet-shaped detection components 16 play a guiding role, with the larger opening end contacting the seedling first. Through the upward angled design, the seedling is smoothly guided between the ends of the two sets of detection components 16, ensuring that the seedling accurately passes through the detection area and avoiding missed or false detections. The adjustment component can be flexibly adjusted according to the seedling spacing at different stages from the cotton seedling stage to the budding stage. Rotating the knob 21 drives the bidirectional internal threaded cylinder 20 to rotate, causing the screws 18 at both ends to extend and retract synchronously. Through the second hinge seat 22, the hanging rod 15 is pulled to rotate around the first hinge seat 14, thereby changing the spacing between the two sets of detection components 16. This adapts to the seedling spacing requirements of different cotton varieties and different planting densities, improving the versatility of the device and meeting the planting needs of most saline-alkali cotton fields.

[0026] Example 3: Please refer to Figure 2 and Figure 4 Based on embodiment 2, the detection component 16 includes a column 25 rotatably connected to the rod 15, a coaxial sleeve 23 is sleeved around the column 25, a flexible material layer is covered around the sleeve 23, and a plurality of evenly distributed springs 24 are fixedly connected between the inner wall of the sleeve 23 and the outer periphery of the column 25. A photoelectric sensor 17 for sensing the passage of seedlings is installed at the end of the column 25 away from the hanging rod 15. The photoelectric sensor 17 is electrically connected to the control module.

[0027] When the seedling passes the detection component 16, it first comes into contact with the flexible material layer on the outer periphery of the sleeve 23. The flexible material is soft, avoiding scratch damage to the seedling stem caused by rigid contact. At the same time, the pressure of the seedling on the sleeve 23 is buffered and dissipated by the spring 24. The elastic deformation of the spring 24 can adapt to the differences in the thickness of the seedling. Even if there are fluctuations in the contact force, it will not cause squeezing damage to the seedling, achieving the effect of flexible operation and no damage to the seedling.

[0028] When a seedling passes by the photoelectric sensor 17, the photoelectric sensor 17 quickly senses and transmits a signal to the control module, ensuring that the control module promptly triggers subsequent feeding and application actions, thus ensuring the accuracy of application per seedling. Compared with the existing mechanical touch-type detection structure, this design can reduce the seedling damage rate and improve the stability of seedling conditions.

[0029] Example 4: Please refer to Figure 2 and Figure 3Based on embodiment 2, the adjustment assembly includes two telescopic rods 19 fixedly installed on the bottom surface of the mounting plate 1. A rotatable bidirectional internal threaded cylinder 20 is installed between the bottom ends of the two telescopic rods 19. A knob 21 is fixedly installed at the middle position of the outer periphery of the bidirectional internal threaded cylinder 20. Both ends of the bidirectional internal threaded cylinder 20 are threadedly connected to screws 18. The ends of the two screws 18 away from the bidirectional internal threaded cylinder 20 are fixedly connected to the corresponding hinge seat 22. The screws 18 are hinged to the rods 15 through the hinge seat 22.

[0030] Before operation, the spacing between the two sets of detection components 16 is adjusted by rotating knob 21 based on the seedling spacing from the cotton seedling stage to the budding stage, the soil salinity, and the planting density. Knob 21 drives the bidirectional internal threaded cylinder 20 to rotate. Since the threads at both ends of the bidirectional internal threaded cylinder 20 are opposite, its rotation drives the screws 18 at both ends to retract inward or extend outward synchronously. This, in turn, pulls the hanging rod 15 around the hinge seat 14 through the second hinge seat 22, achieving precise adjustment of the spacing between the detection components 16. The telescopic hanging rod 19 can adjust its height synchronously with the extension and retraction of the screws 18, ensuring that the bidirectional internal threaded cylinder 20 always remains horizontal and guaranteeing the stability of the adjustment process. This adjustment method requires no tools and can be completed by a single person. It can also accurately adapt to the detection needs in different scenarios, improving the versatility and applicability of the device.

[0031] Example 5: Please refer to Figure 1 Based on embodiment 1, the feeding mechanism includes an air compressor 4, a hopper 2, and a material guiding structure; the hopper 2 is located above the mounting plate 1, and multiple support rods 3 are provided between the hopper 2 and the mounting plate 1. Air compressor 4 is fixedly installed on the top surface of mounting plate 1. A three-way valve 6 is fixedly installed at the air outlet end of air compressor 4. A set of material guiding structures are connected to both ends of the three-way valve 6 away from air compressor 4.

[0032] The material guiding structure includes a guide tube 7 that passes through the mounting plate 1. A venturi tube 8 is fixedly installed at the top of the guide tube 7. An air inlet is fixedly connected to an air guide tube 10. The end of the air guide tube 10 away from the venturi tube 8 is fixedly connected to a tee 6. A material guide tube 9 is connected through the negative pressure section of the venturi tube 8. The end of the material guide tube 9 away from the venturi tube 8 is connected to the outlet of the hopper 2. A solenoid valve 1 is installed in the material guide tube 9, and a solenoid valve 2 is installed in the air guide tube 10. A flexible conduit 11 is fixedly connected to the bottom end of the conduit 7. An injection tube 32, which is fixedly installed between the flexible conduit 11 and the injection mechanism 13, is fixedly connected to the end of the flexible conduit 11 away from the conduit 7. A duckbill injection head 33 is fixedly installed at the bottom end of the injection tube 32.

[0033] After receiving the signal from the detection mechanism 12, the control module first controls the solenoid valve 2 to open. The strong airflow generated by the air compressor 4 is split into two sets of air guide pipes 10 through the three-way valve 6, and then through the venturi tube 8, the guide tube 7, the flexible guide tube 11 and the injection tube 32, and finally sprayed out from the duckbill injection head 33.

[0034] At this time, a negative pressure environment is formed inside the Venturi tube 8. Simultaneously, the control module opens solenoid valve one. Under the action of negative pressure, the powdered amendment in the hopper 2 is drawn into the Venturi tube 8 through the feed pipe 9, where it mixes thoroughly with the strong airflow to form a gas-solid two-phase flow. The mixed amendment is then injected directly into the soil through the duckbill injection head 33. The structure of the duckbill injection head 33 facilitates penetration into the soil, and the pneumatic delivery method prevents the amendment from depositing in the pipeline, solving the problem of nozzle clogging. Furthermore, the amendment is injected directly into the soil, avoiding surface dispersion, thus preventing contamination of cotton seedling leaves and improving amendment utilization.

[0035] Example 6: Please refer to Figure 1 and Figures 5 to 8 Based on embodiment 5, the injection mechanism 13 includes a hanging plate 26 fixedly installed on the bottom surface of the mounting plate 1. A horizontal plate 27 is fixedly installed at the bottom end of the hanging plate 26, and an anti-resistance component is fixedly installed on the inner side of the anti-resistance component. A lifting seat 41 is slidably installed in the anti-resistance component. A fixing ring 42 for fixing the injection pipe 32 is provided on the top of the lifting seat 41, and a connecting component is fixedly installed on the top surface of the lifting seat 41. A boss 34 is fixedly installed on the inner side of the hanging plate 26, and an electric push rod 35 is fixedly installed on the bottom surface of the boss 34. The telescopic end of the electric push rod 35 is connected to the connecting assembly through a transmission.

[0036] The resistance component includes a fixed base 28. Fixed bases 28 are fixedly installed at both ends of the inner side of the horizontal plate 27. Two guide rods 29 are fixedly connected between the two fixed bases 28. A slide block 38 is provided between the two fixed bases 28 and is slidably connected to the two guide rods 29. Two springs 30 are provided between one end of the slide block 38 and the corresponding fixed base 28, respectively sleeved on the periphery of the two guide rods 29. Two springs 31 are provided between the other end of the slide block 38 and the corresponding fixed base 28, respectively sleeved on the periphery of the guide rods 29. The inner side of the slide block 38 is fixedly installed with a second fixed seat 39 at the bottom position. Two guide rods 40 are fixedly connected between the two fixed seats 39. The lifting seat 41 is set between the two fixed seats 39, and the lifting seat 41 is slidably connected to the two guide rods 40.

[0037] The connecting component includes a top rod 43 fixedly installed on the top surface of the lifting seat 41. A lifting bar 36 is fixedly installed on the top end of the top rod 43. A groove 44 is provided on the top surface of the lifting bar 36 along its length. The groove 44 has a T-shaped cross-section. A slider 45 is slidably engaged in the groove 44. The slider 45 has a circular structure. The telescopic end of the electric push rod 35 at the corresponding position extends into the groove 44 and is rotatably connected to the top surface of the slider 45.

[0038] After the control module triggers the injection action, the electric push rod 35 extends and presses down the lifting bar 36. This, via the top rod 43, drives the lifting seat 41 to slide downwards along the second guide rod 40, thereby pushing the injection tube 32 and the duckbill injection head 33 to descend synchronously and penetrate the soil near the seedling. After the duckbill injection head 33 penetrates the soil, the device continues to move with the traction device. At this time, the sliding seat 38 slides relative to the first guide rod 29, the second spring 30 is compressed, and the third spring 31 is stretched, keeping the duckbill injection head 33 momentarily stationary relative to the ground. This design avoids the problem of injection being too shallow or too deep due to device movement, improving the improvement effect, and also avoids the resistance generated by the movement of the duckbill injection head 33 in the soil.

[0039] During the application process, the slider 45 slides adaptively within the groove 44, ensuring that the downward pressure of the electric push rod 35 is stably transmitted to the lifting seat 41, while avoiding jamming caused by angular deviation. After application, the control module controls the electric push rod 35 to lift and reset, and the lifting seat 41 causes the duckbill application head 33 to detach from the soil. At this time, the restoring force of springs 30 and 31 causes the slide 38 to reset. The vibration generated during the reset process can shake off soil impurities and residual amendments adhering to the surface of the duckbill application head 33, further preventing nozzle clogging. The entire operation process causes minimal disturbance to the soil and mulch film, and allows for precise application of amendments around the seedling holes without removing the film, making it suitable for mulched cotton fields.

[0040] It is important to note that to ensure efficient operation of the equipment, the soil must be loose, with appropriate moisture content, and free of large hard objects. The moisture content should be controlled between 40% and 60% of field capacity. This prevents the soil from becoming too dry and hard, making it difficult to penetrate, while also avoiding excessive moisture that causes the soil to stick to the injection head and clog the nozzle. For compacted soil, shallow tillage should be used to break it up beforehand. For soil containing large hard objects, they should be removed by screening or manual cleaning. For soil with abnormal moisture content, a small amount of water should be sprayed in advance to adjust the moisture content during dry periods, and during wet periods, the moisture content should be reduced by sun-drying or loosening the soil and ventilating. This ensures that the soil condition is suitable for the equipment's operational needs and maximizes the precision injection effect.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A device for applying soil conditioner to saline-alkali cotton fields, characterized in that, include: Mounting plate (1), one side of which is fixedly connected to a connecting frame (5) for connecting with a traction device; A feeding mechanism fixedly installed on the top surface of the mounting plate (1); The detection mechanism (12) is fixedly installed on the top surface of the mounting plate (1) on the side near the connecting frame (5); The injection mechanism (13) is provided in two sets, which are respectively fixedly installed on the bottom surface of the mounting plate (1) on both sides adjacent to the detection mechanism (12); The control module is installed on the mounting plate (1). The control module is electrically connected to the feeding mechanism, the detection mechanism (12) and the injection mechanism (13). The control module is used to control the feeding mechanism to supply powdered amendment to the two injection mechanisms (13) after receiving the detection signal of the cotton seedling position from the detection mechanism (12), and to control the two injection mechanisms (13) to perform amendment injection on the soil near the detected cotton seedling.

2. The soil conditioner application device for saline-alkali cotton fields according to claim 1, characterized in that, The detection mechanism (12) includes two hinge seats (14) that are fixedly installed at both ends of the bottom surface of the mounting plate (1). The hinge seat (14) is fixedly connected to a rod (15). The end of the rod (15) away from the hinge seat (14) is bent and rotatably mounted with a detection component (16). The detection component (16) is electrically connected to the control module. The two sets of detection components (16) are in the shape of a horn with an upward angle, and the end with the larger opening is the end closer to the connecting frame (5). The outer periphery of the boom (15) is fixedly installed with a second hinge seat (22) at one end near the first hinge seat (14). An adjustment component is fixedly installed on the bottom surface of the mounting plate (1) between the two second hinge seats (22). The adjustment component is used to adjust the distance between the two sets of detection components (16).

3. The soil conditioner application device for saline-alkali cotton fields according to claim 2, characterized in that, The detection component (16) includes a column (25) rotatably connected to the boom (15). A coaxial sleeve (23) is fitted around the column (25). A flexible material layer is covered around the sleeve (23). A plurality of evenly distributed springs (24) are fixedly connected between the inner wall of the sleeve (23) and the outer periphery of the column (25). The end of the column (25) away from the hanging rod (15) is equipped with a photoelectric sensor (17) for sensing the passage of seedlings, and the photoelectric sensor (17) is electrically connected to the control module.

4. The soil conditioner application device for saline-alkali cotton fields according to claim 2, characterized in that, The adjustment assembly includes two telescopic rods (19) fixedly installed on the bottom surface of the mounting plate (1). A rotatable bidirectional internal threaded cylinder (20) is installed between the bottom ends of the two telescopic rods (19). A knob (21) is fixedly installed at the middle position of the outer periphery of the bidirectional internal threaded cylinder (20). Both ends of the bidirectional internal threaded cylinder (20) are threadedly connected to screws (18). The ends of the two screws (18) away from the bidirectional internal threaded cylinder (20) are fixedly connected to the corresponding hinge seat two (22). The screws (18) are hinged to the rods (15) through the hinge seat two (22).

5. The soil conditioner application device for saline-alkali cotton fields according to claim 1, characterized in that, The feeding mechanism includes an air compressor (4), a hopper (2) and a material guiding structure; the hopper (2) is located above the mounting plate (1), and multiple support rods (3) are provided between the hopper (2) and the mounting plate (1). The air compressor (4) is fixedly installed on the top surface of the mounting plate (1). A three-way valve (6) is fixedly installed at the air outlet end of the air compressor (4). A set of material guiding structures are connected to both ends of the three-way valve (6) away from the air compressor (4).

6. The soil conditioner application device for saline-alkali cotton fields according to claim 5, characterized in that, The material guiding structure includes a conduit (7) that penetrates the mounting plate (1), a venturi tube (8) that is fixedly installed at the top of the conduit (7), an air inlet that is fixedly connected to an air guide pipe (10), an end of the air guide pipe (10) that is away from the venturi tube (8) that is fixedly connected to a tee (6), a material guide pipe (9) that is connected through the negative pressure section of the venturi tube (8), an end of the material guide pipe (9) that is away from the venturi tube (8) that is connected to the outlet of the hopper (2), a solenoid valve one that is installed in the material guide pipe (9), and a solenoid valve two that is installed in the air guide pipe (10). The bottom end of the conduit (7) is fixedly connected to a flexible conduit (11), and the end of the flexible conduit (11) away from the conduit (7) is fixedly connected to an injection tube (32) that is fixedly installed between the injection mechanism (13). The bottom end of the injection tube (32) is fixedly installed with a duckbill injection head (33).

7. The soil conditioner application device for saline-alkali cotton fields according to claim 6, characterized in that, The injection mechanism (13) includes a hanging plate (26) fixedly installed on the bottom surface of the mounting plate (1). A horizontal plate (27) is fixedly installed at the bottom end of the hanging plate (26). An anti-resistance component is fixedly installed on the inner side of the horizontal plate (27). A lifting seat (41) is slidably installed in the anti-resistance component. A fixing ring (42) for fixing the injection pipe (32) is provided on the top of the lifting seat (41). A connecting component is fixedly installed on the top surface of the lifting seat (41). A boss (34) is fixedly installed on the inner side of the hanging plate (26), and an electric push rod (35) is fixedly installed on the bottom surface of the boss (34). The telescopic end of the electric push rod (35) is connected to the connecting assembly.

8. The soil conditioner application device for saline-alkali cotton fields according to claim 7, characterized in that, The resistance component includes a fixed base (28), and the fixed base (28) is fixedly installed at both ends of the inner side of the horizontal plate (27). Two guide rods (29) are fixedly connected between the two fixed bases (28). A slide (38) is provided between the two fixed bases (28) and is slidably connected to the two guide rods (29). Two springs (30) are respectively sleeved on the periphery of the two guide rods (29) between one end of the slide (38) and the corresponding fixed base (28). Two springs (31) are respectively sleeved on the periphery of the guide rods (29) between the other end of the slide (38) and the corresponding fixed base (28). The inner side of the slide (38) is fixedly installed with a second fixed seat (39) at the bottom position. Two guide rods (40) are fixedly connected between the two second fixed seats (39). The lifting seat (41) is set between the two second fixed seats (39), and the lifting seat (41) is slidably connected to the two guide rods (40).

9. The soil conditioner application device for saline-alkali cotton fields according to claim 7, characterized in that, The connecting assembly includes a top rod (43) fixedly installed on the top surface of the lifting seat (41). A lifting bar (36) is fixedly installed on the top end of the top rod (43). A groove (44) is provided on the top surface of the lifting bar (36) along its length. The groove (44) has a T-shaped cross section. A slider (45) is slidably installed in the groove (44). The slider (45) has a circular structure. The telescopic end of the electric push rod (35) at the corresponding position extends into the groove (44) and is rotatably connected to the top surface of the slider (45).

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