Fan system for preventing fruit tree from freezing flowers

Abstract

The utility model provides a fan system for preventing fruit trees from freezing flowers, which comprises a base, a stand column, a hydraulic system, a fan and a positioning device, and solves the problems of low fruit setting rate and yield reduction of an orchard caused by poor protection effect on the fruit trees in a low-temperature environment of the orchard and particularly difficulty in effectively preventing pistil stigmas from being frostbitten in the traditional anti-frosting method in the prior art. Aiming at the problems of low efficiency, high energy consumption, complicated operation, environmental pollution and the like of a traditional anti-frosting method, the utility model provides a fan system for preventing fruit trees from being frozen. According to the system, air is stirred through the fan, slightly warm air above a fruit tree crown and cold air below the fruit tree crown are mixed, the temperature of an orchard is rapidly increased, the cold air is effectively prevented from being gathered on the fruit tree crown layer, therefore, pistil stigmas of fruit tree flowers are remarkably protected against frostbite, and the problem that the pistil stigmas are poor in protection effect through a traditional method is solved.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery, specifically a fan system for preventing fruit tree flowers from freezing. Background Technology

[0002] During the spring flowering season for fruit trees, temperatures fluctuate significantly, especially during cold waves when temperatures can plummet to 0°C or even lower. This extreme cold can severely damage the stigma of the pistil, causing damage to stigma cell tissue and rendering it unable to pollinate. Since the stigma is a crucial part for pollination and fruit production, frost damage directly affects the fruit set rate, leading to reduced yields or even crop failure. For fruit growers, this not only results in economic losses but can also impact the long-term growth of the trees and the sustainable development of the orchard.

[0003] Currently, the commonly used frost protection methods in orchards mainly include the following:

[0004] (1) Smoke burning: This method generates smoke by burning materials such as straw and rice straw, and uses the smoke to form an insulating layer to slow down the loss of heat from the ground. However, this method has limited effectiveness and produces a large amount of smoke, polluting the environment and potentially causing fires.

[0005] (2) Covering method: Use insulating materials (such as straw mats or plastic film) to cover fruit trees to reduce heat loss. However, this method is cumbersome, costly, and not suitable for large-scale orchards;

[0006] (3) Heating method: Raising the orchard temperature by burning fuel or using electric heating equipment. This method is energy-intensive, costly, and may cause environmental pollution;

[0007] (4) Spraying method: Spraying water onto fruit trees at low temperatures, utilizing the heat released when the water freezes to protect the flowers. However, this method requires a large amount of water and is not effective at extremely low temperatures. The above-mentioned traditional methods generally suffer from problems such as low efficiency, high energy consumption, complex operation, or environmental pollution, making it difficult to meet the needs of modern orchards for efficient and environmentally friendly frost protection. Utility Model Content

[0008] To address the aforementioned technical problems, this utility model provides a fan system to prevent fruit tree flowers from freezing, thus solving the problem that traditional frost protection methods in the prior art are not effective in protecting fruit tree flowers in low-temperature environments in orchards, especially in preventing frost damage to the stigma of the pistil, which leads to low fruit set rate and reduced yield in orchards; existing frost protection methods generally suffer from problems such as low efficiency, high energy consumption, complex operation, and environmental pollution, making it difficult to meet the needs of modern orchards for efficient and environmentally friendly production.

[0009] A fan system for preventing fruit tree blossoms from freezing includes a base, a column, a hydraulic system, a fan, and a positioning device.

[0010] The base consists of a combination structure of a housing, a traction frame, and traveling wheels. The housing is a box-type structure with an oil tank for the hydraulic system installed inside. A column is installed on the upper part and traveling wheels are installed at the lower part. The traction frame is located on the side of the housing for connection with the tractor, and the traveling wheels are swivel wheels.

[0011] The column adopts a hollow structure and is fixed to the upper part of the shell with bolts. The hydraulic system is installed inside the hollow structure. The lower part is provided with a hydraulic pump mounting hole, an overflow valve and a speed control valve inspection hole, and the upper part is provided with a hydraulic motor mounting hole.

[0012] The hydraulic system is a complete oil circuit system consisting of an oil tank, an oil suction filter, a hydraulic pump, a check valve, a relief valve, a speed control valve, a hydraulic motor, an oil supply pipe, and an oil return pipe. The oil suction filter is installed at the oil suction port of the hydraulic pump. The hydraulic pump is connected to the tractor's power take-off shaft. The outlet of the hydraulic pump is connected in sequence to the check valve and the oil supply pipe. The oil supply pipe and the oil return pipe are connected to the inlet and outlet of the hydraulic motor, respectively. The other end of the oil return pipe is connected to the oil tank through the speed control valve. An relief valve is also installed on the oil tank.

[0013] The fan is driven by a hydraulic motor.

[0014] The positioning device includes a positioning sleeve, a positioning rod, and a positioning frame. The positioning sleeve is located on both sides of the upper part of the housing and contains a retractable positioning rod. The positioning frame is fixed to the ground for use as a fixing device during operation.

[0015] As a preferred embodiment of the fan system for preventing fruit tree flowers from freezing, the preferred hydraulic pump is driven by the tractor's power output shaft, converting mechanical energy into hydraulic energy to drive the hydraulic motor.

[0016] As a preferred embodiment of the fan system for preventing fruit tree flowers from freezing, the preferred one-way valve is located at the oil outlet of the hydraulic pump to prevent hydraulic oil backflow and maintain system pressure.

[0017] As a preferred embodiment of the fan system for preventing fruit tree flowers from freezing, the preferred overflow valve opens when the system pressure exceeds a set value to discharge excess oil back to the oil tank.

[0018] As a preferred embodiment of the fan system for preventing fruit tree flowers from freezing, the preferred speed control valve controls the speed of the hydraulic motor by adjusting the flow rate of hydraulic oil.

[0019] As a preferred embodiment of the fan system for preventing fruit tree flowers from freezing, the preferred embodiment uses a hydraulic motor that converts hydraulic energy into mechanical energy to drive the fan to rotate.

[0020] As a preferred embodiment of the fan system for preventing fruit tree flowers from freezing, the positioning rod of the preferred positioning device can extend out and be fixed to the ground positioning frame to maintain the stability of the device.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] This invention addresses the problems of low efficiency, high energy consumption, complex operation, and environmental pollution associated with traditional frost prevention methods by proposing a fan system to prevent fruit tree flowers from freezing. The system uses a fan to agitate the air, mixing the slightly warmer air above the fruit tree canopy with the cooler air below, rapidly raising the orchard temperature and effectively preventing the accumulation of cold air in the canopy. This significantly protects the stigmas of the fruit flowers from frost damage, solving the problem of poor protection of the stigmas in traditional methods. A tractor-driven hydraulic system provides strong power to the fan, with a wind coverage range of 30-50 meters, suitable for large-scale orchards. The fan can also be towed by a tractor, significantly increasing the coverage area and efficiency. Furthermore, the adjustable fan speed adapts to different fruit tree species and orchard terrain, ensuring maximum frost prevention. Compared to traditional methods, this invention offers significant advantages such as better heating effect, lower energy consumption, simple operation, and environmental friendliness, effectively increasing orchard yield and farmer income, and has broad application prospects and significant economic value. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the positioning rod of this utility model;

[0025] Figure 3 This is a rear-view three-dimensional structural diagram of the present invention.

[0026] In the diagram: 1. Housing; 2. Traction frame; 3. Traveling wheels; 4. Oil tank; 5. Oil suction filter; 6. Hydraulic pump; 7. Check valve; 8. Relief valve; 9. Speed ​​control valve; 10. Hydraulic motor; 1001. Oil supply pipe; 1002. Oil return pipe; 11. Positioning sleeve; 12. Positioning rod; 13. Positioning frame; 14. Column; 15. Fan. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0028] like Figure 1-3 The fan system shown includes a base, a column 14, a hydraulic system, a fan 15, and a positioning device to prevent fruit tree flowers from freezing.

[0029] The base includes a combination structure of housing 1, traction frame 2 and traveling wheels 3. Housing 1 is a box-type structure with an oil tank 4 of the hydraulic system installed inside. A column 14 is installed on the upper part and a traveling wheel 3 is installed on the lower part. The traction frame 2 is located on the side of housing 1 for connection with the tractor. The traveling wheel 3 is a swivel wheel.

[0030] The column 14 has a hollow structure and is fixed to the upper part of the shell 1 with bolts. The hydraulic system is installed inside the hollow structure. The lower part is provided with a hydraulic pump 6 mounting hole, an overflow valve 8 and a speed control valve 9 inspection hole, and the upper part is provided with a hydraulic motor 10 mounting hole.

[0031] The hydraulic system consists of an oil tank 4, an oil suction filter 5, a hydraulic pump 6, a check valve 7, a relief valve 8, a speed control valve 9, a hydraulic motor 10, an oil supply pipe 1001, and an oil return pipe 1002, forming a complete oil circuit system. The function of the oil tank 4 is to store hydraulic oil, provide sufficient oil to the system, and also to dissipate the heat generated by the hydraulic oil during circulation to prevent the oil temperature from becoming too high. The function of the relief valve 8 is to set the maximum working pressure of the system and prevent the system pressure from exceeding the set value. When the system pressure reaches the set value, the overflow valve 8 opens, draining excess oil back to the oil tank 4, protecting system components from damage caused by excessive pressure. The suction filter 5 is installed at the suction port of the hydraulic pump 6, filtering impurities from the hydraulic oil to prevent them from entering the hydraulic pump 6, reducing pump wear, extending its service life, ensuring the cleanliness of the oil entering the hydraulic pump 6, and improving system reliability. The one-way valve 7 is located at the outlet port of the hydraulic pump 6, allowing only one-way flow of hydraulic oil to prevent backflow. When the hydraulic pump 6 stops working, it prevents oil backflow in the hydraulic system, protecting the hydraulic pump 6 and... The system components are capable of maintaining system pressure and preventing the hydraulic motor 10 from reversing, preventing hydraulic oil backflow and maintaining system pressure. The hydraulic pump 6 is connected to the tractor's power take-off shaft and is driven by the tractor's power take-off shaft to convert mechanical energy into hydraulic energy to drive the hydraulic motor 10, ensuring the circulation and flow of hydraulic oil in the system. The overflow valve 8 opens when the system pressure exceeds the set value to discharge excess oil back to the oil tank 4. The speed control valve 9 controls the speed of the hydraulic motor 10 by adjusting the hydraulic oil flow rate, ensuring that the hydraulic motor 10 maintains a stable speed under different load conditions and improving the system's operating efficiency.

[0032] The fan 15 is driven by the hydraulic motor 10 to generate airflow, which disturbs the air near the canopy of the fruit tree. The hydraulic motor 10 converts hydraulic energy into mechanical energy to drive the fan 15 to rotate.

[0033] The positioning device includes a positioning sleeve 11, a positioning rod 12, and a positioning frame 13. The positioning sleeve 11 is located on both sides of the upper part of the housing 1 and is equipped with a telescopic positioning rod 12 inside. The positioning frame 13 is fixed to the ground for use as a fixing device during operation. The positioning rod 12 of the positioning device can extend out and be fixed to the ground positioning frame 13 to keep the device stable.

[0034] Working Principle: The fan system in this embodiment consists of a base, a column 14, a hydraulic system, a fan 15, and a positioning device. The base adopts a box-type shell structure, with a hydraulic oil tank installed inside. It is equipped with omnidirectional casters at the bottom and a tractor towing frame on the side. The column 14 is bolted to the base and features a hollow structure design, housing the components of the hydraulic system. The hydraulic system includes an oil tank, a hydraulic pump, a control valve group, and a hydraulic motor, connected by pipelines to form a complete oil circuit. The fan 15 is mounted on top of the column 14 and is directly driven by the hydraulic motor. The positioning device consists of four sets of retractable positioning rods and a ground fixing frame, ensuring system stability during operation.

[0035] When the hydraulic system is working, the tractor's power take-off shaft drives the hydraulic pump, converting mechanical energy into hydraulic energy. Hydraulic oil, after being filtered by the suction filter, enters the hydraulic pump and then passes through a check valve into the system's main oil circuit. The speed control valve regulates the oil flow to control the hydraulic motor's speed, and the relief valve sets the system's maximum working pressure. When the system pressure exceeds the set value, the relief valve opens to release pressure, protecting the system. The hydraulic motor converts hydraulic energy into mechanical energy, driving fan 15 to rotate and generate airflow. When the system stops, the check valve prevents backflow of oil, maintaining system pressure.

[0036] When the system is in operation, the positioning rod is first extended and fixed to the ground mounting bracket. After starting the tractor, the power take-off shaft drives the hydraulic pump, and the hydraulic system drives the fan 15 to rotate. The airflow generated by the fan 15 disturbs the air in the fruit tree canopy, mixing the upper and lower layers of air and preventing cold air from accumulating. The speed of the fan 15 can be changed by adjusting the speed control valve to adapt to different antifreeze requirements. The system can be moved to different working positions with the tractor, and the positioning device ensures that the system is stable and does not shake during operation.

[0037] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A fan system for preventing fruit tree flowers from freezing, characterized in that, Includes a base, column (14), hydraulic system, fan (15), and positioning device. The base includes a combination structure of housing (1), traction frame (2) and traveling wheels (3). The housing (1) is a box-type structure with an oil tank (4) for the hydraulic system installed inside. A column (14) is installed on the upper part and a traveling wheel (3) is installed on the lower part. The traction frame (2) is located on the side of the housing (1) for connection with the tractor. The traveling wheel (3) is a universal wheel. The column (14) adopts a hollow structure and is fixed to the upper part of the shell (1) with bolts. The hydraulic system is installed inside the hollow structure. The lower part is provided with a hydraulic pump (6) mounting hole, an overflow valve (8) and a speed regulating valve (9) inspection hole, and the upper part is provided with a hydraulic motor (10) mounting hole. The hydraulic system consists of an oil tank (4), an oil suction filter (5), a hydraulic pump (6), a check valve (7), an overflow valve (8), a speed control valve (9), a hydraulic motor (10), an oil supply pipe (1001), and an oil return pipe (1002). The oil suction filter (5) is installed at the oil suction port of the hydraulic pump (6). The hydraulic pump (6) is connected to the power output shaft of the tractor. The outlet of the hydraulic pump (6) is connected in sequence to the check valve (7) and the oil supply pipe (1001). The oil supply pipe (1001) and the oil return pipe (1002) are connected to the inlet and outlet of the hydraulic motor (10), respectively. The other end of the oil return pipe (1002) is connected to the oil tank (4) through the speed control valve (9). An overflow valve (8) is also installed on the oil tank (4). The fan (15) is driven by a hydraulic motor (10); The positioning device includes a positioning sleeve (11), a positioning rod (12), and a positioning frame (13). The positioning sleeve (11) is located on both sides of the upper part of the housing (1) and is equipped with a telescopic positioning rod (12). The positioning frame (13) is fixed to the ground for use as a fixing device during operation.

2. The fan system for preventing fruit tree flowers from freezing as described in claim 1, characterized in that: The hydraulic pump (6) is driven by the tractor's power output shaft, converting mechanical energy into hydraulic energy to drive the hydraulic motor (10) to work.

3. The fan system for preventing fruit tree flowers from freezing as described in claim 1, characterized in that: The one-way valve (7) is located at the outlet of the hydraulic pump (6) to prevent hydraulic oil backflow and maintain system pressure.

4. The fan system for preventing fruit tree flowers from freezing as described in claim 1, characterized in that: The overflow valve (8) opens when the system pressure exceeds the set value to drain excess oil back to the oil tank (4).

5. The fan system for preventing fruit tree flowers from freezing as described in claim 1, characterized in that: The speed control valve (9) controls the speed of the hydraulic motor (10) by adjusting the flow rate of hydraulic oil.

6. The fan system for preventing fruit tree flowers from freezing as described in claim 1, characterized in that: The hydraulic motor (10) converts hydraulic energy into mechanical energy to drive the fan (15) to rotate.

7. The fan system for preventing fruit tree flowers from freezing as described in claim 1, characterized in that: The positioning rod (12) of the positioning device can extend out and be fixed to the ground positioning frame (13) to maintain the stability of the device.

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