A plant growth regulator time and quantity supply device for kiwi fruit planting

Abstract

The application discloses a kind of kiwi fruit planting plant growth regulator timed and quantitative supply device, belong to fruit tree planting equipment field, including fruit soaking cup body, clamping positioning mechanism, timing control module and liquid medicine circulating supply unit;The fruit soaking cup body and clamping positioning mechanism are fixedly assembled on the sliding seat of height adjusting assembly, first by clamping positioning mechanism during operation Fruit stem is clamped to make fruit suspended fixed, then lift fruit soaking cup body to complete fruit soaking by wrapping fruit, annular highest scale line is set in liquid storage cavity inner wall;Equipment is equipped with upper operating panel, wireless remote control switch and detachable base handle.This device can unify single fruit soaking time, effectively avoid fruit deformity, uneven size, hollow and other defects, liquid medicine can be recycled, simultaneously have liquid level, concentration real-time monitoring and operation data traceability function, convenient operation, whole machine transfer flexible, adapt to kiwi fruit large-scale standardization fruit soaking operation.

Description

Technical Field

[0001] This invention relates to the field of fruit tree planting equipment technology, specifically to a timed and quantitative supply device for plant growth regulators in kiwifruit planting, which is mainly used for soaking kiwifruit in plant growth regulators such as chlorpyrifos during the young fruit stage. Background Technology

[0002] In the large-scale, standardized cultivation of kiwifruit, highly active cytokinin-based plant growth regulators, such as chlorpyrifos, are widely used in the young fruit enlargement and quality improvement stage. This is a core agricultural input for ensuring stable and increased kiwifruit yields and improving the marketable fruit rate. Scientific and standardized application of plant growth regulators can accelerate fruit cell division and elongation, increase single fruit weight, optimize fruit shape uniformity, and improve the sugar-acid ratio and flavor quality of the fruit, playing a crucial role in increasing kiwifruit yield and economic benefits.

[0003] However, commonly used plant growth regulators such as chlorpyrifos are highly sensitive, and their application effects are subject to extremely stringent requirements regarding solution concentration, immersion time, and uniformity of fruit surface wetting, leaving very little room for error. Currently, in the domestic kiwifruit cultivation process, chlorpyrifos immersion is still mainly carried out using the traditional manual method of dipping individual fruits, which is extensive and lacks standardization. Due to differences in the experience and skill level of operators, it is impossible to accurately uniformize the contact time and amount of solution applied to each fruit, easily leading to uneven wetting of the fruit surface, and some fruits being immersed for too long or too little.

[0004] Insufficient soaking time will prevent the fruit-expanding effect of the pesticide from being realized, resulting in smaller fruits and severe size variation. On the other hand, excessive soaking time or excessive pesticide solution can cause physiological diseases such as hollow fruit and deformities, significantly reducing the marketability and storage and transportation performance of the fruit. At the same time, the traditional manual dipping method is inefficient for processing bunches of kiwifruit, and the dipping cups are prone to tipping over and spilling solution. This not only wastes agricultural materials and increases planting costs, but also fails to meet the needs of modern large-scale and intensive kiwifruit production, thus hindering the standardized and high-quality development of the kiwifruit industry.

[0005] Therefore, developing a specialized device that can precisely control the soaking time, quantitatively supply the solution, recycle the agent, and has a high degree of standardization has become an urgent technical problem to be solved in this field. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of existing manual dipping methods, such as uncontrollable soaking time, uneven application of pesticide solution, pesticide waste, and low work efficiency, and to provide a timed and quantitative supply device for plant growth regulators in kiwifruit cultivation. This device can achieve precise timing of soaking time, automatic supply and recycling of pesticide solution, and adjustable soaking depth, ensuring consistent pesticide contact time and application amount for each kiwifruit, improving the standardization of operations, increasing fruit uniformity, saving pesticides, reducing planting costs, and meeting the needs of large-scale and standardized kiwifruit cultivation.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a timed and quantitative supply device for plant growth regulators in kiwifruit cultivation, comprising an immersion cup, a clamping and positioning mechanism, a timing control module, and a liquid circulation supply unit; the immersion cup has an internal storage cavity for holding the plant growth regulator liquid, the top of the storage cavity is open, and a return pipe is connected to the lower end of the side wall of the storage cavity, on which a first solenoid valve is installed; the clamping and positioning mechanism is mounted above the open end of the immersion cup, and includes an openable elastic clamping member, which is used to clamp and fix the kiwifruit stem, and after clamping and fixing the stem, the storage cavity is raised to immerse the fruit in the liquid inside the storage cavity; the timing control module... The control module includes a timing unit, a control unit, and an operation panel. The timing unit is used to collect and record the duration of fruit immersion in the solution. The control unit is electrically connected to the timing unit and the first solenoid valve. The operation panel is used to set the standard immersion time, issue start / stop commands, and control the opening and closing of the first solenoid valve. The solution circulation supply unit includes a storage tank, a supply pump, and a second solenoid valve. The storage tank is connected to the storage chamber through a supply pipeline. The operation panel is electrically connected to the control unit. The operator issues replenishment, reflux, and start / stop commands through the operation panel. The control unit is electrically connected to the supply pump, the second solenoid valve, and the first solenoid valve to uniformly execute the solution supply and reflux recovery actions, realizing automated solution circulation.

[0008] As a further preferred embodiment of the present invention, a liquid level sensor is fixed on the upper part of the inner side wall of the liquid storage chamber. The liquid level sensor is level with the target fruit soaking liquid surface and is used to monitor the liquid level. The control unit controls the start and stop of the liquid supply pump according to the liquid level sensor signal to maintain the liquid level at the set height and ensure that the liquid completely covers the fruit and the base of the fruit stalk during fruit soaking.

[0009] As a further preferred embodiment of the present invention, the clamping and positioning mechanism further includes a height adjustment component, which includes a vertically arranged guide rail, a sliding seat, and a locking member; the sliding seat is slidably mounted on the guide rail, and the locking member is used to lock and fix the sliding seat at any position on the guide rail; the fruit soaking cup and the liquid storage cavity are fixedly installed on the sliding seat and can move up and down synchronously with the sliding seat; the elastic clamping member is fixedly installed on the sliding seat and moves synchronously with the liquid storage cavity; during operation, the fruit stem is first clamped and the fruit position is fixed by the elastic clamping member, and then the sliding seat is lifted upward as a whole to move the liquid storage cavity upward to wrap the fruit.

[0010] Furthermore, a magnetic positioning structure can be set between the sliding seat and the guide rail, relying on magnetic attraction to achieve rapid positioning of the sliding seat, eliminating the need for screwing on the locking parts; alternatively, the locking parts can be set as a press-type spring clip structure, where the clip automatically locks temporarily after the sliding seat slides to the required working height, and pressing the clip unlocks it for free lifting and lowering; this structure has no fixed upward limit, and the sliding seat can slide freely upward to any height to adapt to fruits of different heights, allowing for height adjustment and fixation with one hand, greatly improving operational convenience.

[0011] As a further preferred embodiment of the present invention, the elastic clamping member is an arc-shaped elastic claw, and an anti-slip silicone pad is fitted to the inner side wall of the claw. The surface of the anti-slip silicone pad is provided with an arc-shaped limiting groove that is adapted to the kiwi fruit stem.

[0012] As a further preferred embodiment of the present invention, the timing control module further includes a buzzer alarm, which is electrically connected to the control unit; when the timing unit detects that the soaking time has reached the preset standard time, the control unit synchronously triggers the buzzer alarm and opens the first solenoid valve.

[0013] As a further preferred embodiment of the present invention, a stirring mechanism and a concentration detection sensor are installed inside the storage tank, and the concentration detection sensor is electrically connected to the control unit; the stirring mechanism is used to stir and mix the medicine liquid inside the storage tank, and the concentration detection sensor monitors the concentration of the medicine liquid in real time. When the concentration exceeds the preset range, the control unit issues an abnormal prompt.

[0014] The concentration detection sensor monitors the concentration of the pesticide solution in real time. When the concentration of the pesticide solution exceeds the preset range due to factors such as water evaporation, fruit adsorption, and changes in the composition of the returned pesticide solution, the control unit issues an abnormality prompt, reminding the operator to add water or replace the pesticide solution to ensure that the pesticide solution is always within the safe and effective application concentration range.

[0015] As a further preferred embodiment of the present invention, the open edge of the fruit soaking cup is integrally provided with a splash-proof guide plate, which is inclined toward the inside of the liquid storage cavity.

[0016] As a further preferred embodiment of the present invention, a filter assembly is also installed on the return pipeline, and the filter assembly is located between the first solenoid valve and the storage tank.

[0017] As a further preferred embodiment of the present invention, the device further includes a mobile base, the liquid storage tank and the liquid supply pump are installed on the mobile base, the guide rail of the height adjustment component is fixed above the mobile base by a bracket, the bottom of the mobile base is provided with casters, and the base is equipped with a detachable handle to facilitate the transportation and movement of the equipment in the orchard.

[0018] As a further preferred embodiment of the present invention, the control unit integrates a data storage module and a wireless communication module. The data storage module is used to store the soaking time, solution concentration, and liquid level data of each operation, and the wireless communication module is used to remotely transmit the operation data to the terminal device.

[0019] The data storage module is used to store the soaking time, pesticide concentration, and liquid level data of each operation. The pesticide concentration data is used to monitor changes in the pesticide state, and the liquid level data is used to ensure that the soaking liquid level is stable. All data can be traced throughout the entire operation process. The wireless communication module is used to remotely transmit the operation data to the terminal device.

[0020] The supply and return pipelines use flexible hoses in the moving sections of the corresponding storage chamber and rigid hoses in the fixed sections. The flexible hoses can bend and deform with the movement of the storage chamber, effectively compensating for vertical displacement, ensuring stable delivery and return of the liquid throughout the process, and preventing the pipeline from being pulled and damaged or leaking.

[0021] The flexible hose used in this device is made of a material that is resistant to plant growth regulator corrosion and aging, and has good sealing performance and repeated bending ability. It can adapt to the open-air operation environment in orchards and the working conditions of frequent lifting and lowering.

[0022] Working principle When using this device, first prepare a plant growth regulator solution of the standard concentration in the storage tank, and then start the stirring mechanism to mix it thoroughly. The operator sets parameters such as the soaking time and the concentration threshold of the solution through the control panel and wireless remote control. The control unit drives the supply pump and the second solenoid valve to deliver the solution to the storage chamber, and the liquid level sensor monitors the liquid level in real time, stabilizing the liquid level at the standard upper limit corresponding to the highest mark on the ring.

[0023] During operation, the kiwi fruit stem is clamped into the elastic holder for secure fixation. Then, the sliding seat is raised, causing the liquid storage chamber to move upward and envelop the fruit. The operator can freely control the upward sliding distance of the sliding seat according to the actual height of the fruit, without preset upward limit constraints, allowing for precise adjustment to the appropriate height where the fruit and stem are completely immersed in the liquid in the storage chamber. Once the storage chamber is raised to the correct position, the timer automatically starts. After the designated immersion time, the control unit immediately opens the first solenoid valve, allowing the liquid in the storage chamber to flow back to the storage tank via the return pipe and filter assembly. After the liquid is completely emptied, the sliding seat lowers the empty storage chamber to its original position, completing a single operation.

[0024] The device's supply and return pipelines are divided into rigid fixed sections and flexible movable sections. The flexible hose can adapt to the deformation as the liquid storage chamber rises and falls, ensuring smooth delivery and return of the liquid and preventing the pipeline from being pulled and damaged.

[0025] Throughout the operation, the concentration detection sensor and liquid level sensor continuously collect data, the data storage module records the information of each operation, and uploads it remotely through the wireless communication module, which facilitates cost accounting, fault diagnosis and operation traceability; when the concentration or liquid level of the drug solution is abnormal, the device will automatically issue a prompt.

[0026] This device can also switch to an intelligent sensing operation mode, relying on clamping trigger sensors and spectral recognition components to achieve fully automated operation and fruit size data acquisition. When the elastic gripper clamps the fruit stem, the clamping trigger sensor outputs an electrical signal to the control unit, which drives the sliding seat to automatically rise the liquid storage chamber. The spectral recognition components vertically arranged in the liquid storage chamber can distinguish the fruit body and the stem section by the difference in spectral reflectance intensity: both the kiwi fruit and the stem are green, but the spectral reflectance characteristics and effective light-receiving area of ​​the fruit flesh are much larger than those of the thin stem. The fruit diameter is 3-5cm, while the stem thickness is only 0.3-0.6cm, and the difference in spectral signal amplitude between the two is significant, thus accurately dividing the fruit soaking boundary. The equipment supports two intelligent operation logics: One mode is the constant liquid level operation mode. The liquid storage chamber always maintains the standard water level at the highest mark of the ring. After the clamping trigger signal is transmitted to the control unit, the liquid storage chamber is raised to immerse the fruit for timed immersion. After the immersion time reaches the target, the control unit opens the first solenoid valve to return and empty all the liquid in the liquid storage chamber. Then the liquid storage chamber automatically sinks and resets. After the next kiwi fruit stem is clamped, the system starts the liquid supply pump to replenish the liquid in the liquid storage chamber to the standard mark, and then raises the liquid storage chamber to start the next round of immersion.

[0027] Secondly, there is the intelligent segmented detection mode. During the upward movement of the liquid, the spectral component continuously collects signals. When the spectral characteristics corresponding to the large cross-section fruit are identified, the travel timer is started. After the spectral signal switches to the low amplitude characteristic range of the thin fruit stalk, it is determined that the immersion has reached the reference depth of the fruit stalk, and then the preset 3-5 second standard immersion timer stage is entered. The system automatically calculates the transverse diameter parameters of the fruit by combining the lifting displacement of the sliding seat and the switching position of the spectral signal. All immersion time and fruit size data are synchronously stored in the data storage module and remotely uploaded to the terminal. The immersion boundary is distinguished by the thickness of the fruit to achieve differentiated quantitative immersion. The batch-collected transverse diameter data of the fruit can be used for the analysis of orchard plant growth and fruit shape distribution. Beneficial effects

[0028] 1. Precise and controllable soaking time and high degree of standardization of operation: This device is equipped with an independent timing control module, which can accurately set and control the soaking time of each kiwifruit, completely solving the problems of excessive or insufficient soaking caused by human factors in traditional manual dipping, unifying the duration of agent action, avoiding problems such as hollow fruit, deformity, and uneven size, and greatly improving the marketable fruit rate of kiwifruit.

[0029] 2. Recycling of pesticide solution to save production costs: The pesticide solution recycling supply unit realizes the automatic delivery, use and recycling of pesticide solution. With the filter components on the return pipeline, the returned pesticide solution can be purified and reused, which greatly reduces pesticide waste and lowers the agricultural input costs of kiwifruit planting.

[0030] 3. Adjustable immersion depth and uniform wetting of the pesticide solution: The clamping and positioning mechanism is equipped with a height adjustment component, which can flexibly adjust the immersion depth according to the size of the kiwi fruit and its hanging position. Combined with the anti-splash guide plate to prevent the pesticide solution from splashing, it ensures that the fruit surface is fully and evenly wetted, thereby improving the effect of the regulator application.

[0031] 4. Real-time monitoring of drug solution status ensures high medication safety: The storage tank is equipped with a concentration detection sensor and a stirring mechanism, and the storage chamber is equipped with a liquid level sensor, which can monitor the drug solution concentration and liquid level in real time. It can provide timely warnings when the drug solution concentration is abnormal or the liquid level is insufficient, ensuring that the drug is always used under standard operating conditions.

[0032] 5. Convenient to move and adaptable to orchard operation scenarios: The entire equipment is integrated on a mobile base, equipped with casters and a carrying handle, which can be moved flexibly in the orchard and is suitable for fruit soaking operations on different plots and different trees, with a wide range of applications.

[0033] 6. Data traceability facilitates modern management: The integrated data storage and wireless communication module can record and upload operation parameters, enabling digital and traceable operation processes and meeting the standardized management needs of large-scale orchards.

[0034] Simple structure and easy operation: The overall mechanical structure and electrical control system are reasonably coordinated, and operators only need simple training to get started, effectively reducing manual labor intensity and improving overall work efficiency. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the fruit soaking cup body and the clamping and positioning mechanism of the present invention; Figure 3 This is a schematic diagram of the pipeline connection structure of the drug solution circulation supply unit of the present invention; Figure 4 This is a circuit connection block diagram of the timing control module of the present invention.

[0036] Explanation of reference numerals in the attached drawings: 1-Immersion cup body, 11-Liquid storage chamber, 12-Return liquid pipeline, 13-First solenoid valve, 14-Liquid level sensor, 15-Splash-proof guide plate; 2-Clamping and positioning mechanism, 21-Elastic clamping component, 211-Anti-slip silicone pad, 22-Height adjustment component, 221-Guide rail, 222-Sliding seat, 223-Locking component; 3-Timing control module, 31-Timing unit, 32-Control unit, 33-Operation panel, 34-Buzzer alarm, 35-Data storage module, 36-Wireless communication module; 4-Medicine liquid circulation supply unit, 41-Liquid storage tank, 411-Stirring mechanism, 412-Concentration detection sensor, 42-Liquid supply pump, 43-Second solenoid valve, 44-Liquid supply pipeline, 45-Filter component; 5-Moving base, 51-Universal wheel; 6-Bracket.

[0037] The present invention can be additionally modularly fitted with clamping trigger sensors and spectral recognition components. The above-mentioned sensing components are external independent structures, not shown in the figure. After assembly, the original mechanical connection and lifting structure of the equipment are not changed. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Those skilled in the art should understand that the following embodiments are only for explaining the present invention and are not intended to limit the scope of protection of the present invention.

[0039] Example 1 (Basic General Type) like Figures 1 to 4 As shown, this embodiment provides a timed and quantitative supply device for plant growth regulators used in kiwifruit cultivation. The main body consists of a fruit soaking cup 1, a clamping and positioning mechanism 2, a timing control module 3, a liquid circulation supply unit 4, and a movable base 5.

[0040] The fruit soaking cup body 1 and the elastic clamping component 21 are both mounted on the sliding seat 222 and can be raised and lowered synchronously along the guide rail 221. The liquid storage tank 41 and the liquid supply pump 42 are fixed to the end face of the movable base 5, and the bottom end of the bracket 6 is fixed to the movable base 5. A cylindrical liquid storage cavity 11 is opened inside the fruit soaking cup body 1. The top of the liquid storage cavity 11 is a circular opening, and the edge of the opening is integrally formed with an inwardly inclined anti-splash guide plate 15, which can catch splashed liquid and guide it back into the liquid storage cavity 11. The inner wall of the liquid storage cavity 11 is also provided with an annular maximum scale line. The annular maximum scale line is the reference position for liquid replenishment. When the device replenishes liquid, it automatically stops when the liquid level reaches the scale line, so that the liquid level in the liquid storage cavity always remains uniform. The lower end of the side wall of the liquid storage chamber 11 is connected to the return liquid pipeline 12, which is laid out vertically. A first solenoid valve 13 is installed in series on the pipeline. A liquid level sensor 14 is fixed on the upper part of the inner side wall of the liquid storage chamber 11. The liquid level sensor 14 is level with the target fruit soaking liquid surface and is used to monitor the liquid level. The control unit controls the start and stop of the liquid supply pump according to the liquid level sensor signal to maintain the liquid level at the set height and ensure that the liquid completely covers the fruit and the base of the fruit stalk during soaking.

[0041] The clamping and positioning mechanism 2 is installed directly above the opening of the fruit soaking cup 1, and includes an elastic clamping component 21 and a height adjustment component 22. The guide rail 221 of the height adjustment component 22 is vertically fixed to the side wall of the bracket 6, and the sliding seat 222 is slidably sleeved on the outside of the guide rail 221. The side of the sliding seat 222 is threaded with a locking component 223. Tightening the locking component 223 can fix the sliding seat 222 at any height position on the guide rail 221. This device can also optimize and upgrade the positioning structure: First, a magnetic attraction component can be added to the contact surface between the sliding seat 222 and the guide rail 221. After the sliding seat 222 slides to the preset height, it will automatically be attracted and fixed by magnetic attraction. The position can be adjusted by pushing and pulling, which is easy to operate. Second, the original threaded locking component 223 can be replaced with a press-type spring clip. After the sliding seat 222 slides to the position, the clip will automatically engage and lock. Pressing the clip will release the limit. The height adjustment and fixing can be completed with one hand, which effectively simplifies the operation steps and meets the needs of continuous and rapid operation in orchards. The elastic clamping component 21 is made of plastic arc-shaped elastic claws. The inner side of the claws is bonded with an anti-slip silicone pad 211. An arc-shaped limiting groove is opened in the middle of the silicone pad. The curvature of the groove matches the outer diameter of the kiwi fruit stem, so the fruit stem will not be scratched during the clamping process.

[0042] The timing control module 3 is fixedly installed on the side shell of the mobile base 5, and includes a timing unit 31, a control unit 32, an operation panel 33, a buzzer alarm 34, a data storage module 35, and a wireless communication module 36. The equipment is equipped with an independent wireless remote control switch, which wirelessly connects to the control unit. Operators can use the remote control to remotely trigger timing start, stop, and liquid return operations without bending over to approach the base's operation panel, adapting to the high-frequency operation requirements of continuous fruit soaking in orchards ("every 3-5 seconds"), significantly improving operational convenience and efficiency. The control unit 32 uses a microcontroller as its core controller and is electrically connected to the timing unit 31, liquid level sensor 14, first solenoid valve 13, second solenoid valve 43, liquid supply pump 42, buzzer alarm 34, and concentration detection sensor 412. The operation panel 33 features touch buttons and a display screen, allowing for setting parameters such as soaking time (typically set to 3-5 seconds), upper and lower limits of liquid level, and liquid concentration threshold. The timing unit 31 uses a high-precision timing chip with a timing accuracy of 0.01 seconds, ensuring minimal timing error. A buzzer alarm 34 is located on the side of the panel and provides audible and visual alerts for extended durations. The data storage module 35 has a built-in storage chip that records the time, concentration, and liquid level data for each operation. The wireless communication module 36 uses a 4G / WiFi communication module, which can remotely transmit data to terminal devices such as mobile phones and computers.

[0043] The liquid medicine circulation supply unit 4 is arranged on the upper surface of the movable base 5. The liquid storage tank 41 is a sealed box structure. The stirring mechanism 411 is installed on the bottom inside the liquid storage tank 41. The stirring mechanism 411 uses a small stirring motor and stirring paddle to continuously stir the liquid medicine in the tank during operation. The stirring mechanism is used to stir and mix the liquid medicine inside the liquid storage tank to maintain a uniform and stable concentration of the liquid medicine and avoid local concentration deviations caused by standing, temperature changes or uneven mixing of backflow liquid medicine, so as to ensure that the concentration of the liquid medicine supplied to the storage chamber is consistent each time.

[0044] The top of the storage tank 41 is connected to a supply pipe 44, which is divided into a fixed section and a movable section. The fixed section uses a rigid pipe and is equipped with a supply pump 42 and a second solenoid valve 43. The movable section uses a flexible hose and extends upwards to connect to the liftable storage chamber 11. The return pipe 12 is also divided into rigid and flexible sections. The outlet of the first solenoid valve 13 at the bottom of the storage chamber 11 is connected to a flexible hose. The flexible hose extends downwards, and after the filter assembly 45 is installed in the fixed section of the pipe, it connects to the top of the storage tank 41. The flexible hose can adapt to bending deformation as the storage chamber 11 rises and falls, compensating for vertical displacement and ensuring pipe sealing and liquid flow. The filter assembly 45 has a removable filter screen inside, which can filter out foreign objects such as fruit hairs, leaves, and impurities to ensure the cleanliness of the circulating liquid.

[0045] The mobile base 5 is a rectangular steel base with casters 51 installed at each of the four corners of the bottom. The casters are equipped with brakes, enabling the device to move and park at a fixed point. One or both sides of the mobile base 5 have detachable handles. These handles can be fixed to the mobile base 5 via clips, threads, or other quick-connect structures, facilitating operator movement and steering of the device. When in operation or in tight spaces, the handles can be quickly detached without affecting normal operation.

[0046] The entire liquid circulation unit (liquid storage tank 41, liquid supply pump 42, filter assembly 45) is fixed on the movable base 5. Only the liquid storage chamber 11, the elastic clamping part 21 and the corresponding pipes 12 and 44 move up and down with the sliding seat 222. The combination of soft and hard pipe structure realizes reliable connection between the fixed part and the lifting part.

[0047] The usage process in this embodiment is as follows: Before operation, the plant growth regulator solution is prepared in the storage tank, and the stirring mechanism is activated to continuously stir the solution to ensure uniform concentration. Operators can set operating parameters such as soaking time and solution concentration warning threshold via the control panel on the upper part of the machine or a wireless remote control. Then, the control unit activates the supply pump and the second solenoid valve, delivering the solution sequentially through rigid tubing and flexible hoses to the storage chamber. When the liquid level rises to the maximum annular mark on the inner wall of the storage chamber and triggers the potential sensor signal, the supply pump and the second solenoid valve automatically shut off, completing the replenishment and maintaining the standard liquid level.

[0048] During operation, the kiwi fruit stem is secured by inserting it into the elastic clamp. The clamping of the stem and the upward movement of the sliding seat operate synchronously. The equipment has no upward limit structure, allowing the operator to freely control the upward movement distance of the sliding seat based on the actual size of the fruit and its hanging height, until the fruit and stem are completely submerged in the solution. The timing unit then starts timing. When the soaking time reaches the preset value, a buzzer alarm sounds. The control unit first opens the first solenoid valve, allowing the solution in the storage chamber to flow back through the return pipe and filter assembly to the storage tank. After the solution has flowed back, the sliding seat moves the soaking cup and the storage chamber downwards synchronously to reset, removing the fruit from the solution. This completes one soaking operation. The clamps can then be released to remove the fruit, and the next fruit can be moved to repeat the soaking process.

[0049] The entire supply and return pipeline adopts a combination of flexible and rigid structures. During the lifting and lowering of the storage chamber, the flexible pipe section adapts to bending deformation, effectively compensating for vertical displacement and ensuring smooth delivery and return of the medicine throughout the process, without any pipe pulling or leakage problems.

[0050] Throughout the entire operation, concentration and level sensors collect data in real time. The data storage module automatically records the soaking time, pesticide concentration, and level information for each operation. This data can be remotely transmitted to terminal equipment via a wireless communication module, facilitating pesticide consumption statistics, equipment troubleshooting, and full traceability of the operation process. If the pesticide concentration or level deviates from the set range during operation, the device will promptly issue an anomaly warning, ensuring safe pesticide use and standardized operation.

[0051] Example 2 (Electric Clamping Type) The main structure of this embodiment is basically the same as that of Embodiment 1, except that the manually opening and closing elastic clamping member 21 is replaced with an electric gripper. The electric gripper has a built-in micro drive motor, which is electrically linked to the control unit 32. Working logic: After pressing the start timer button, the control unit 32 controls the electric gripper to automatically close and clamp the fruit stem; after the timer ends and the alarm sounds, the electric gripper automatically opens, eliminating the need for manual prying open, further improving work efficiency, and is suitable for large-scale contiguous kiwifruit orchard assembly line operations.

[0052] Example 3 (Temperature Control Enhanced Type) This embodiment expands upon the functionality of Embodiment 1 by adding an electric heating element and a temperature sensor inside the storage tank 41. Both the temperature sensor and the electric heating element are electrically connected to the control unit 32. In low-temperature environments, the appropriate temperature of the liquid can be set via the operation panel. The control unit automatically starts and stops the electric heating element based on the temperature sensor signal to maintain a stable liquid temperature, preventing the plant growth regulator's activity from decreasing due to low temperatures and ensuring the effectiveness of the application.

[0053] Example 4 (Multi-station combination type) In this embodiment, the single set of fruit soaking cup 1 and clamping and positioning mechanism 2 are set as 2 to 4 parallel workstations. Multiple workstations share a set of timing control module 3 and liquid circulation supply unit 4. One device can simultaneously perform fruit soaking operations on multiple or multiple bunches of kiwifruit, greatly increasing the single operation capacity and making it suitable for use in large-scale modern kiwifruit industrial parks.

[0054] This device supports two operating methods: one is to start and stop it directly through the control panel located in the upper middle part; the other is to control it remotely through a wireless remote control switch. Operators can hold the remote control and directly trigger the timer next to the fruit soaking station, making the operation more convenient and suitable for actual field operation scenarios.

[0055] This device adopts a dual standardization design, consisting of two layers of control logic: 1. Liquid level standardization (ring scale): The liquid storage chamber is always replenished to the highest mark of the ring scale, and the liquid level is permanently uniform, eliminating the problem of "differences in fruit immersion depth caused by different liquid levels", which is a standardization of the medium. 2. Fruit posture standardization (clamping and positioning mechanism): The elastic gripper clamps the fruit stem to fix the fruit position and prevent shaking or displacement; the height adjustment component can coarsely adjust the basic height of the fruit, and then use the ring scale to finely calibrate the position of the fruit stem, with double locking of the immersion depth; at the same time, the silicone pad protects the fruit stem and is suitable for fruit stems of different lengths and thicknesses. 3. Adaptation device overall automation logic: The clamping mechanism suspends the fruit, and together with the timing module, solenoid valve, and liquid circulation system, it realizes the full-process automation of "timed fruit soaking → timing end → automatic liquid return", which cannot be achieved by simple scale.

[0056] Example 5 (Intelligent Sensing and Detection Type) This embodiment adds a clamping trigger sensor and two sets of spectral recognition components to the basic embodiment to realize automated action, intelligent timing and fruit data collection. It is configured with two switchable operating modes to adapt to different operation requirements. The overall mechanical structure and pipeline system are consistent with the basic embodiment. The newly added sensing components are modular external structures and do not require changes to the original assembly relationship.

[0057] 1. New structural layout Clamping trigger sensor: Installed on the clamping contact surface of the elastic gripper, this contact-type trigger sensor outputs an electrical signal when the gripper clamps the fruit and reaches the preset clamping force. It remains in standby mode when there is no clamping action. The spectral recognition component is divided into upper and lower groups. ① Reference identification spectrum: Fixedly installed on the inner wall of the liquid storage chamber at the same level as the highest scale line of the ring, it serves as the reference for judging the fruit immersion and is used to identify whether the fruit has reached the standard immersion liquid height; ②Size acquisition spectrum: Vertically arranged at intervals of 3~10cm below the highest scale line along the inner wall of the liquid storage chamber, used to collect the longitudinal diameter data of the fruit in conjunction with the lifting stroke; All components use near-infrared spectral sensors. Kiwi fruit and stem are green all over. The two can be distinguished by the light-receiving area and the amplitude of the spectral signal: the fruit has a transverse diameter of 3~5cm and a high spectral signal intensity; the stem is only 0.3~0.6cm thick and has a weaker spectral signal, so there is no need to rely on color difference for discrimination. The sensor cable is stored in the cable tray of the equipment, which does not affect the lifting of the liquid storage chamber or the deformation of the pipeline.

[0058] 2. Mode 1 (Conventional constant liquid level mode, suitable for standardized batch fruit soaking) This mode corresponds to the operating logic of "maintaining the highest standard water level in the storage chamber throughout the entire process," and the operation procedure is as follows: ① Before operation, the medicine solution is prepared and the parameters are set. The liquid storage chamber is continuously replenished by the liquid level sensor, and the liquid level is stably maintained at the position of the highest mark of the ring. ②The sliding seat is in the low position by default. The operator puts the kiwi fruit stem into the elastic gripper and clamps it. The clamping triggers the sensor to output an electrical signal and transmit it to the control unit. ③ After receiving the signal, the control unit drives the height adjustment component to move the liquid storage chamber upward synchronously; ④ When the bottom of the fruit rises to the highest mark and triggers the reference recognition spectrum, the timing unit starts immediately and immerses the fruit for a preset standard duration of 3 to 5 seconds; ⑤ After the soaking time reaches the standard, the control unit opens the first solenoid valve, and the liquid in the storage chamber flows back to the storage tank; after the liquid is drained, the storage tank automatically sinks and resets to the low position; ⑥ Release the gripper to remove the fruit. The equipment will automatically replenish the liquid to the highest mark and wait for the next gripping trigger to start the cycle.

[0059] 3. Mode 2 (Intelligent Spectral Detection Mode, adapted for refined and data-driven operations) This mode relies on a calibrated reference spectrum to determine the starting point for fruit soaking. Multiple sets of spectra below, combined with displacement measurement, calculate the longitudinal diameter of the fruit, balancing accurate fruit soaking with growth data collection. The process is as follows: ① The initial preparation of the drug solution and parameter settings are the same as in Mode 1, and the storage solution is pre-filled to the highest mark of the ring. ② The sensor is triggered when the fruit stalk is clamped, and the entire liquid storage container rises upward; ③ When the bottom of the fruit rises to the highest mark, the reference spectrum detects the spectral signal of the fruit, and the timing unit is activated; ④ The liquid continues to rise slightly, and the fruit body passes through the size range of 3-10cm below in sequence to collect the spectrum. The system records each set of spectra to trigger the corresponding sliding seat shift. ⑤ When the spectral signal switches from the high amplitude of the fruit to the low amplitude of the stalk, it is determined that the base of the stalk is completely submerged, and the immersion timer is fixed for 3-5 seconds. ⑥ After the standard soaking time is completed, the liquid is returned to its original position and the liquid in the reservoir settles back to its original position; ⑦ The system combines lifting displacement with multiple sets of size spectral acquisition points to automatically calculate the longitudinal diameter of kiwifruit; data such as longitudinal diameter and soaking time are synchronously stored in the storage module and uploaded remotely. Batch size data can be used to analyze orchard fruit shape and plant growth, and guide field management and variety selection.

[0060] 4. Structural and Interconnected Advantages High degree of automation: The clamping action automatically triggers the liquid storage lifting and lowering, significantly reducing manual operation steps; Precise fruit immersion judgment: The reference spectrum is fixed at the standard highest immersion liquid scale, and timing starts as soon as the fruit reaches the liquid baseline, ensuring uniform and standardized immersion depth; Reliable fruit diameter measurement: Multiple sets of spectral sensors are arranged in the lower section, which, together with the lifting stroke, accurately calculate the longitudinal diameter of the fruit, realizing the integration of quantitative immersion and fruit shape detection; Strong compatibility: Both sets of spectra are external modular accessories, without altering the original lifting, pipeline, and electrical control structure, and without affecting the basic fruit immersion function of the equipment.

[0061] Example 6 (Multi-degree-of-freedom robotic arm adjustment type) This embodiment replaces the original vertical guide rail lifting structure with a multi-degree-of-freedom flexible robotic arm assembly, based on Embodiment 1. The remaining structures, such as the fruit-soaking cup, the liquid circulation supply unit, the timing control module, and the sensor detection components, remain unchanged. The robotic arm can achieve 360° horizontal rotation, arbitrary height lifting, and multi-angle tilt adjustment. It features a damping locking function that allows for immediate stopping upon fruit breaking. The liquid storage cup and the elastic clamping component are synchronously fixed to the end of the robotic arm, making it suitable for kiwifruit on different fruit-hanging planes, at varying heights, and on lateral branches, thus enhancing its versatility. This robotic arm structure can also be used with a clamping trigger sensor. After the fruit stalk is clamped and a trigger signal is received, the device can automatically drive the robotic arm to lift and complete the fruit soaking. It supports both manual breaking and electrically automatic operation modes.

[0062] 1. Robotic arm structure and locking design The robotic arm employs a multi-section damping hinge structure, with each hinge joint having a built-in damping locking component. After manually adjusting the rotation angle, lifting height, and tilt angle of the robotic arm, releasing the arm automatically locks it in place, eliminating the need for additional tightening of locking components or pressing of buckles, allowing for immediate stopping upon adjustment. The robotic arm base is fixedly mounted on the support above the mobile base, and its overall load-bearing capacity matches the weight of the full liquid storage chamber, ensuring no shifting or shaking during operation. The robotic arm's end effector is simultaneously equipped with an elastic gripper and a liquid storage cup, with a fixed relative assembly distance. When adjusting the robotic arm to any posture, the liquid storage chamber and gripper always maintain a coaxial alignment, ensuring complete encapsulation and immersion of the fruit even after lifting or tilting, without altering the original fruit-immersion fit.

[0063] 2. Piping adaptation optimization The sections where the liquid supply and return lines are laid out synchronously with the robotic arm use extended, bend-resistant flexible hoses. These hoses are designed to withstand repeated deformations as the machine rotates 360°, tilts at multiple angles, and rises and falls. The hoses are corrosion-resistant and fatigue-resistant, preventing problems such as leakage due to pulling or pipe detachment. The liquid delivery and return circulation functions are not affected by the robotic arm's posture adjustment.

[0064] 3. Work Operation Procedures ① Before operation, prepare the solution and set the parameters. The storage chamber will automatically replenish the solution to the highest standard level on the ring. ② Manually move the multi-degree-of-freedom robotic arm to rotate 360 ​​degrees to adjust the horizontal position, adjust the height by lifting up and down, and tilt forward, backward, left and right to adapt to the side / low-position fruit-bearing branches. After adjustment, the damping joint automatically locks. ③ Clamp the kiwi fruit stem in the elastic gripper, the clamping triggers the sensor to output a signal, and the equipment automatically executes the fruit soaking process; ④ Once the soaking time reaches the target, the liquid will automatically flow back and be drained. Simply turn the robotic arm to the position of the next fruit to continue operation without moving the entire machine or using the caster transfer equipment.

[0065] 4. Advantages of this embodiment Extremely adaptable to space: It abandons the limitation of a single vertical guide rail, with 360° rotation + multi-directional tilt + stepless height adjustment, and can adapt to various fruit-bearing positions such as high, low, side, and crossing branches, without the need to frequently push the whole machine to move; It is easy and convenient to operate, and the damping can be turned and stopped at will. It can be positioned in any posture with one hand, eliminating the need for locking and unlocking steps and improving the efficiency of continuous fruit soaking. The equipment is highly versatile, requiring only the replacement of the adjustment support structure, while retaining all original functions such as liquid circulation, timing control, intelligent spectral detection, and liquid concentration monitoring. The flexible pipeline is compatible with the multi-angle movement of the robotic arm, and there is no leakage or pipeline interference during the rotation and tilting process, ensuring stable and reliable long-term operation in open-air orchards.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0067] This invention addresses the pain points of fruit soaking operations using plant growth regulators such as chlorpyrifos in kiwifruit. Through the combined use of multiple structures, including electronic timing, liquid circulation, adjustable depth, and status monitoring, it achieves standardization and precision throughout the entire fruit soaking process, effectively solving various drawbacks of traditional manual operations and possessing strong market promotion value.

Claims

1. A timed and quantitative supply device for plant growth regulators used in kiwifruit cultivation, characterized in that, include: The fruit soaking cup body has a liquid storage chamber inside for containing plant growth regulator solution. The top of the liquid storage chamber is an open structure. The lower end of the side wall of the liquid storage chamber is connected to a return liquid pipeline. A first solenoid valve is provided on the return liquid pipeline. A clamping and positioning mechanism is provided above the opening of the fruit immersion cup. The clamping and positioning mechanism includes an openable and closable elastic clamping member, which is used to fix the kiwi fruit stem so that the kiwi fruit hangs and is immersed in the liquid in the storage cavity. The timing control module includes a timing unit, a control unit, and an operation panel. The timing unit is used to record the duration of fruit immersion in the solution. The control unit is electrically connected to the timing unit and the first solenoid valve. The operation panel is used to set the target immersion time, start the timing, and control the opening and closing of the first solenoid valve. The liquid medicine circulation supply unit includes a storage tank, a supply pump, and a second solenoid valve. The storage tank is connected to the storage chamber via a supply pipeline. The supply pump and the second solenoid valve are located on the supply pipeline. The end of the return pipeline is connected to the storage tank. The operation panel is electrically connected to the control unit. The operator issues replenishment, return, and start / stop commands through the operation panel. The control unit is electrically connected to the supply pump, the second solenoid valve, and the first solenoid valve to uniformly execute the liquid medicine supply and return recovery actions, thereby realizing automated circulation of the liquid medicine.

2. The apparatus according to claim 1, characterized in that, A liquid level sensor is installed on the upper part of the side wall of the liquid storage chamber of the fruit soaking cup. The liquid level sensor is electrically connected to the control unit and is used to monitor the liquid level in the liquid storage chamber in real time. During the operation, the control unit continuously maintains the liquid level in the liquid storage chamber at the set upper limit height corresponding to the liquid level sensor. Once the liquid level is lower than the upper limit height, the control unit immediately controls the liquid supply pump and the second solenoid valve to open and replenish the liquid until the liquid level rises back to the set upper limit and then closes the liquid supply pump and the second solenoid valve, so as to continuously ensure that the liquid level meets the process requirement of completely submerging the fruit.

3. The apparatus according to claim 1, characterized in that, The clamping and positioning mechanism also includes a height adjustment component, which includes a vertically arranged guide rail and a sliding seat. The sliding seat can slide up and down along the guide rail and is fixed by a locking component. The fruit immersion cup and the elastic clamping component are both fixed on the sliding seat and move up and down synchronously. During operation, the fruit stem is first clamped by the elastic clamping component to fix the position of the fruit, and then the sliding seat is raised as a whole to drive the liquid storage chamber to move up and wrap the fruit, thereby adjusting the depth of the fruit immersion in the liquid.

4. The apparatus according to claim 1, characterized in that, The elastic clamping component is an arc-shaped elastic claw. The inner side of the claw is provided with an anti-slip silicone pad. The anti-slip silicone pad is provided with an arc-shaped groove that matches the kiwi fruit stem to avoid damaging the fruit stem during clamping.

5. The apparatus according to claim 1, characterized in that, The timing control module also includes a buzzer alarm, which is electrically connected to the control unit. When the soaking time recorded by the timing unit reaches the set target time, the control unit triggers the buzzer alarm to issue a prompt signal and simultaneously controls the first solenoid valve to open, so that the liquid in the storage chamber flows back to the storage tank through the return pipe.

6. The apparatus according to claim 1, characterized in that, The storage tank is equipped with a stirring mechanism and a concentration detection sensor. The stirring mechanism is used to uniformly mix the plant growth regulator solution in the storage tank. The concentration detection sensor is electrically connected to the control unit and is used to monitor the concentration of the solution in real time. When the concentration deviates from the set range, the control unit triggers a concentration abnormality prompt.

7. The apparatus according to claim 1, characterized in that, The open edge of the fruit soaking cup is provided with a splash-proof guide plate, which is inclined towards the inside of the liquid storage chamber to collect the medicine splashed during the fruit soaking process and return it to the liquid storage chamber.

8. The apparatus according to claim 1, characterized in that, The liquid medicine circulation supply unit also includes a filter assembly, which is installed on the return liquid pipeline to filter impurities and fruit surface residues in the returned liquid medicine, so as to keep the liquid medicine clean.

9. The apparatus according to claim 1, characterized in that, The device also includes a mobile base, on which the liquid storage tank and the liquid supply pump are mounted. The guide rail of the height adjustment component is fixed above the mobile base by a bracket. The bottom of the mobile base is equipped with casters and a detachable handle, which facilitates the transportation and movement of the equipment in the orchard.

10. The apparatus according to claim 1, characterized in that, The control unit also includes a data storage module and a wireless communication module. The data storage module is used to record the duration, concentration, and level data of each fruit soaking operation. The wireless communication module is used to transmit the operation data to the terminal device to realize remote monitoring and data traceability of the operation process.

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