A fruit tree planting greenhouse heat preservation mechanism

By using the cam-pushing mechanism and axial fan system of the greenhouse insulation system for fruit tree planting, the problem of water droplets on plastic film affecting light transmittance and heat preservation is solved, realizing environmental regulation and stability of the fruit tree growth environment in the greenhouse, and improving fruit quality.

CN224521884UActive Publication Date: 2026-07-21LUOYANG YANGFENG FRUIT IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LUOYANG YANGFENG FRUIT IND CO LTD
Filing Date
2025-09-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The plastic film in existing agricultural greenhouses easily absorbs water vapor, leading to reduced light transmittance and decreased heat retention, which affects fruit tree growth and fruit quality.

Method used

A greenhouse insulation mechanism for fruit tree planting was designed. The cam-pushing mechanism driven by the second motor causes the movable support rod to move up and down, shaking off water droplets from the roof film and adjusting the shape of the roof to maintain light transmittance and ventilation gaps. Combined with an axial flow fan, air exchange is achieved, and the light, temperature and air quality inside the greenhouse are regulated.

Benefits of technology

It improves the light transmittance and heat preservation effect of the greenhouse, ensures the photosynthetic efficiency of fruit trees, provides a stable growing environment, flexibly adjusts ventilation and temperature, and improves fruit quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fruit tree planting, and discloses a greenhouse heat preservation mechanism for fruit tree planting, which comprises a shed body, a fixed support rod is fixedly installed on the upper surface of the shed body, the outer surface of the fixed support rod is provided with a plastic shed roof, wherein a heat preservation mechanism is arranged in the shed body, the heat preservation mechanism comprises a discharge pipeline, a first motor, an axial flow fan, an insect screen, a fixed support rod, a second motor, a worm, a worm wheel, a fixed roller, a cam, a pulley, a spring, an L-shaped fixed plate, a sliding roller and a movable support rod, the greenhouse heat preservation mechanism for fruit tree planting is provided with a cam push mechanism driven by the second motor, the movable support rod can realize up-down reciprocating movement, the shed roof film water drops can be shaken off to maintain the light transmittance and guarantee the photosynthesis efficiency of the fruit trees, the shed roof can be locally bulged by raising the support rod, the ventilation gap can be flexibly adjusted, the shed illumination, temperature and air quality can be controlled according to the requirement, and a stable growth environment is provided for the fruit trees.
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Description

Technical Field

[0001] This utility model relates to the field of fruit tree planting technology, specifically to a greenhouse insulation mechanism for fruit tree planting. Background Technology

[0002] Fruit tree greenhouses, with their well-controlled environment, promote the growth and development of fruit trees, encouraging flower bud differentiation and fruit set, thereby increasing yield. Furthermore, a stable growing environment ensures more uniform fruit size, color, and taste, enhancing the fruit's commercial value.

[0003] Currently, most agricultural greenhouses rely on their frames and plastic films for insulation during continuous production to ensure normal operation. However, these films readily absorb water vapor, causing it to condense into droplets that accumulate. This not only significantly reduces the film's light transmittance, resulting in a slow temperature rise during solar radiation, but the continued absorption and evaporation of water droplets further impairs the film's insulation capacity. All of these factors severely affect the efficient operation of agricultural greenhouses. Therefore, a greenhouse insulation mechanism for fruit tree cultivation is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a greenhouse insulation mechanism for fruit tree planting, which solves the problem of poor greenhouse insulation performance.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a greenhouse insulation mechanism for fruit tree planting, comprising a greenhouse body, wherein a fixed support rod is fixedly installed on the upper surface of the greenhouse body, and a plastic greenhouse roof is provided on the outer surface of the fixed support rod;

[0008] The greenhouse is equipped with an insulation mechanism, which includes an exhaust pipe, a first motor, an axial flow fan, an insect-proof net, a fixed support rod, a second motor, a worm gear, a worm wheel, a fixed roller, a cam, a pulley, a spring, an L-shaped fixed plate, a sliding roller, and a movable support rod.

[0009] Preferably, the discharge pipe is fixedly installed on the right surface of the shed, and the first motor is fixedly installed on the inner surface of the discharge pipe.

[0010] Preferably, the axial fan is fixedly installed on the outer surface of the output shaft of the first motor, and the insect screen is fixedly installed at the output end of the discharge pipe.

[0011] Preferably, the second motor is fixedly installed on the inner surface of the frame beam, and the worm gear is fixedly installed at the output end of the second motor;

[0012] The worm gear is meshed with the outer surface of the worm.

[0013] Preferably, the fixed roller is fixedly sleeved on the inner surface of the worm gear, and the fixed roller is rotatably connected to the opposite side of the crossbeam of the shed.

[0014] Two cams are fixedly sleeved on the outer surface of the fixed roller.

[0015] Preferably, both L-shaped fixing plates are fixedly installed on the upper surface of the shed body, and two springs are respectively fixedly installed on the lower surface of the cross plate of the two L-shaped fixing plates;

[0016] Two pulleys are fixedly installed at the lower ends of two springs, and the two pulleys are in contact with two cams respectively.

[0017] Preferably, the two sliding rollers are respectively fixedly installed on the upper surface of the two pulleys, and the two sliding rollers slide through the upper surface of the two L-shaped fixed plate cross plates respectively;

[0018] The movable support rod is fixedly installed at the upper end of the two sliding rollers.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, this utility model provides a greenhouse insulation mechanism for fruit tree planting, which has the following beneficial effects:

[0021] 1. The greenhouse insulation mechanism for fruit tree planting uses a cam-driven jacking mechanism to achieve the reciprocating up-and-down movement of the movable support rod. This mechanism can shake off water droplets from the roof film to maintain light transmittance and ensure the photosynthetic efficiency of the fruit trees. It can also raise the support rod to partially bulge the roof, flexibly adjusting the ventilation gap. The light, temperature, and air quality inside the greenhouse can be controlled as needed, providing a stable growing environment for the fruit trees.

[0022] 2. The greenhouse insulation mechanism for fruit tree planting can reduce air circulation by turning off the axial flow fan when the temperature inside the greenhouse is too low, and achieve basic insulation by utilizing the sealing of the plastic greenhouse roof. When heat dissipation is needed, the shape of the greenhouse roof can be adjusted by mechanical structure and the fan can be started to quickly enhance air exchange. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a greenhouse insulation mechanism for fruit tree planting according to the present invention;

[0024] Figure 2 This is a schematic diagram of the shed structure of this utility model;

[0025] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0026] Figure 4 This is a schematic diagram of the internal structure of the shed of this utility model;

[0027] Figure 5 This utility model Figure 4 Enlarged view of the structure at point B in the middle;

[0028] Figure 6 This utility model Figure 4 Enlarged view of the structure at point C.

[0029] In the diagram: 1. Shed body; 2. Plastic shed roof; 3. Drainage pipe; 4. First motor; 5. Axial flow fan; 6. Insect net; 7. Fixed support rod; 8. Second motor; 9. Worm gear; 10. Worm wheel; 11. Fixed roller; 12. Cam; 13. Pulley; 14. Spring; 15. L-shaped fixed plate; 16. Sliding roller; 17. Movable support rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-6 This utility model provides a new technical solution: a greenhouse insulation mechanism for fruit tree planting, including a greenhouse body 1, a fixed support rod 7 fixedly installed on the upper surface of the greenhouse body 1, and a plastic greenhouse roof 2 provided on the outer surface of the fixed support rod 7;

[0032] The shed 1 is equipped with a heat preservation mechanism, which includes an exhaust pipe 3, a first motor 4, an axial flow fan 5, an insect-proof net 6, a fixed support rod 7, a second motor 8, a worm gear 9, a worm wheel 10, a fixed roller 11, a cam 12, a pulley 13, a spring 14, an L-shaped fixed plate 15, a sliding roller 16, and a movable support rod 17.

[0033] Furthermore, the discharge pipe 3 is fixedly installed on the right surface of the shed body 1, and the first motor 4 is fixedly installed on the inner surface of the discharge pipe 3.

[0034] Furthermore, the axial fan 5 is fixedly installed on the outer surface of the output shaft of the first motor 4, and the insect screen 6 is fixedly installed at the output end of the discharge pipe 3.

[0035] Furthermore, the second motor 8 is fixedly installed on the inner surface of the crossbeam of the shed body 1, and the worm gear 9 is fixedly installed at the output end of the second motor 8;

[0036] The worm gear 10 is meshed with the outer surface of the worm 9.

[0037] Furthermore, the fixed roller 11 is fixedly sleeved on the inner surface of the worm 9, and the fixed roller 11 is rotatably connected to the opposite surface of the crossbeam of the shed body 1.

[0038] Two cams 12 are fixedly sleeved on the outer surface of the fixed roller 11.

[0039] Furthermore, both L-shaped fixing plates 15 are fixedly installed on the upper surface of the shed body 1, and two springs 14 are respectively fixedly installed on the lower surface of the horizontal plates of the two L-shaped fixing plates 15.

[0040] Two pulleys 13 are fixedly installed at the lower ends of two springs 14, and the two pulleys 13 are in contact with two cams 12 respectively.

[0041] Furthermore, two sliding rollers 16 are respectively fixedly installed on the upper surface of two pulleys 13, and the two sliding rollers 16 slide through the upper surface of the two L-shaped fixed plates 15.

[0042] Among them, the movable support rod 17 is fixedly installed on the upper end of the two sliding rollers 16;

[0043] The greenhouse insulation mechanism for fruit tree planting starts with the second motor 8. The output shaft of the second motor 8 drives the worm gear 9 to rotate. Since the worm wheel 10 meshes with the worm gear 9, the worm gear 9 drives the worm wheel 10 to rotate synchronously. The fixed roller 11 is fixedly sleeved on the outer surface of the worm gear 9 and rotatably connected to the crossbeam of the greenhouse body 1. Therefore, when the worm gear 9 rotates, it drives the fixed roller 11 to rotate synchronously. When the fixed roller 11 rotates, the two cams 12 on its outer surface rotate accordingly. The protruding parts of the cams 12 contact the pulley 13 and push it upward. After the pulley 13 is pushed by the cams 12, it compresses the upper spring 14. The spring 14 is fixed to the lower surface of the L-shaped fixed plate 15, and at the same time drives the sliding roller 16 on the upper surface to move upward. The sliding roller 16 slides through the crossbeam of the L-shaped fixed plate 15, and finally pushes the upper movable support rod 17 to move upward. Through the continuous operation of the second motor 8, the mechanism is further enhanced. The movable support rod 17 can be driven to move up and down, causing the plastic roof 2 to bounce and shake off the water droplets condensed on the plastic roof 2 film, increasing light transmittance. If heat dissipation is required, the movable support rod 17 can be raised, causing the plastic roof 2 to bulge in part, increasing the air circulation gap between the inside and outside of the greenhouse. When the temperature inside the greenhouse is too high or ventilation is required, the first motor 4 is started, and its output shaft drives the axial flow fan 5 to rotate. The rotation of the axial flow fan 5 generates airflow, which discharges the hot air or stale air inside the greenhouse 1 to the outside of the greenhouse through the exhaust pipe 3. The insect-proof net 6 at the output end of the exhaust pipe 3 can prevent external mosquitoes and impurities from entering the greenhouse 1 through the pipe, avoiding damage to the fruit trees. If the temperature inside the greenhouse is too low, the first motor 4 can be turned off, and the axial flow fan 5 can stop working, reducing the air circulation between the inside and outside of the greenhouse. Combined with the basic sealing of the plastic roof 2, preliminary heat preservation is achieved.

[0044] This greenhouse insulation mechanism for fruit tree planting uses a cam 12 driven by a second motor 8 to push the movable support rod 17 up and down. This mechanism can shake off water droplets from the plastic roof 2 film to maintain light transmittance and ensure the photosynthetic efficiency of the fruit trees. It can also raise the support rod to partially bulge the roof, flexibly adjusting the ventilation gap. The light, temperature, and air quality inside the greenhouse can be controlled as needed, providing a stable growing environment for the fruit trees. When the temperature inside the greenhouse is too low, the axial fan 5 can be turned off to reduce air circulation, and the sealing of the plastic roof 2 can achieve basic insulation. When heat dissipation is needed, the shape of the roof can be adjusted through the mechanical structure and the fan can be started to quickly enhance air exchange.

[0045] Structural Description:

[0046] Greenhouse Frame 1: As the basic framework of the entire insulation system, it supports the installation and operation of all components. It provides a closed space for fruit tree growth, serves as the foundation for insulation and protection, and can resist external environmental influences such as wind and rain, ensuring that the internal insulation system and fruit trees are in a relatively stable environment.

[0047] Plastic roof 2: Covers the outer surface of the fixed support rods 7, forming a closed top structure with the help of the greenhouse body 1 and related support components. Its main function is to block heat exchange between the inside and outside of the greenhouse, reduce heat loss, and at the same time allow sunlight to pass through to provide light for the fruit trees, maintain the temperature inside the greenhouse, and help the fruit trees grow.

[0048] Exhaust pipe 3: Fixed to the right surface of the shed body 1, it serves as a channel for air circulation inside the shed. It provides a mounting platform for components such as the first motor 4 and axial flow fan 5. Through the operation of the axial flow fan 5, air inside the shed is exhausted or drawn in, regulating the air quality and temperature inside the shed.

[0049] The first motor 4 is fixed to the inner surface of the discharge pipe 3 and serves as a power source. Its output shaft drives the axial flow fan 5 to rotate. By controlling its own start / stop and speed, the working state of the axial flow fan 5 is adjusted, thereby controlling the air circulation speed and exchange volume inside the greenhouse to ensure a suitable environment.

[0050] Axial fan 5: Installed on the outer surface of the output shaft of the first motor 4, it rotates under the drive of the first motor 4. When rotating, it pushes the air in the exhaust pipe 3 to flow, realize the exchange of air inside and outside the greenhouse, regulate the temperature, humidity and carbon dioxide concentration inside the greenhouse, and meet the growth needs of the fruit trees.

[0051] Insect-proof net 6: Fixed at the output end of the discharge pipe 3, it can prevent external pests from entering the greenhouse 1 through the discharge pipe 3, thus avoiding damage to the fruit trees. At the same time, it does not affect the normal air circulation, and plays a role in pest protection while providing ventilation.

[0052] Fixed support rod 7: Fixedly installed on the upper surface of the canopy body 1, supporting the plastic canopy roof 2 and maintaining its stable shape. It enhances the structural strength of the top of the canopy body 1, prevents the plastic canopy roof 2 from deforming due to its own weight or external pressure, and ensures the sealing of the top.

[0053] The second motor 8 is fixed to the inner surface of the crossbeam of the shed body 1 and is a power output device. Its output end drives the worm gear 9 to rotate. By controlling its own operation, it provides power for the movement of subsequent components such as the worm wheel 10 and the fixed roller 11, and is the key power source for adjusting the movement of heat preservation-related components.

[0054] Worm 9: Fixed to the output end of the second motor 8, it rotates under the drive of the second motor 8. It meshes with the worm wheel 10, transmitting power to the worm wheel 10, and at the same time drives the fixed roller 11 to rotate, playing the role of power transmission and conversion, and connecting the motor with subsequent moving parts.

[0055] Worm gear 10: meshes with the outer surface of worm 9 and rotates under the drive of worm 9. It can change the direction of power transmission, and work with worm 9 to achieve speed reduction and torque increase, so that subsequent components can obtain appropriate speed and torque, and ensure the stable operation of related mechanisms.

[0056] Fixed roller 11: It is fixedly sleeved on the inner surface of the worm gear 9 and rotatably connected to the opposite surface of the crossbeam of the frame 1. It rotates under the drive of the worm gear 9. Its outer surface is fixedly sleeved with a cam 12. When rotating, it drives the cam 12 to rotate and at the same time provides installation and support for the cam 12. It is an important component for transmitting motion.

[0057] Cam 12: It is fixedly sleeved on the outer surface of the fixed roller 11 and rotates with the fixed roller 11. When rotating, it contacts the pulley 13 and drives the pulley 13 to move up and down through its own contour change, thereby driving the movement of related components and realizing the adjustment of components such as the movable support rod 17.

[0058] Pulley 13: Fixed to the lower end of spring 14, in contact with cam 12. When cam 12 rotates, it moves up and down following the contour of cam 12, converting the rotational motion of cam 12 into its own linear motion, while reducing friction with cam 12 and making the motion smoother.

[0059] Spring 14: Fixed to the lower surface of the horizontal plate of L-shaped fixed plate 15, with the lower end connected to pulley 13. When cam 12 pushes pulley 13 upward, spring 14 is compressed; after cam 12 rotates until the protrusion leaves, spring 14 returns to its original position, causing pulley 13 to move downward, thus playing a buffering and resetting role.

[0060] L-shaped fixing plate 15: Fixed to the upper surface of the frame 1, providing mounting support for components such as spring 14 and sliding roller 16. Its horizontal plate restricts the position of spring 14 and sliding roller 16, ensuring that they move along a set trajectory, thus enhancing the stability of the installation of related components.

[0061] Sliding roller 16: Fixed to the upper surface of pulley 13, sliding through the horizontal plate of L-shaped fixed plate 15. It moves up and down with pulley 13, driving the movable support rod 17 to move, playing the role of transmitting motion, while ensuring the stability of the motion direction, so that the movable support rod 17 can rise and fall smoothly.

[0062] Movable support rod 17: Fixed to the upper end of two sliding rollers 16, it moves up and down with the sliding rollers 16. It can drive the plastic canopy roof 2 to partially rise or adjust its shape, change the closed state of the canopy roof and the canopy body 1, adjust the ventilation and heat preservation effect inside the canopy, and adapt to different environmental needs.

[0063] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A greenhouse insulation mechanism for fruit tree planting, comprising a greenhouse body (1), characterized in that: A fixed support rod (7) is fixedly installed on the upper surface of the shed (1), and a plastic shed roof (2) is provided on the outer surface of the fixed support rod (7); The shed (1) is equipped with a heat preservation mechanism, which includes a discharge pipe (3), a first motor (4), an axial flow fan (5), an insect net (6), a fixed support rod (7), a second motor (8), a worm gear (9), a worm wheel (10), a fixed roller (11), a cam (12), a pulley (13), a spring (14), an L-shaped fixed plate (15), a sliding roller (16), and a movable support rod (17).

2. The greenhouse insulation mechanism for fruit tree planting according to claim 1, characterized in that: The discharge pipe (3) is fixedly installed on the right surface of the shed (1), and the first motor (4) is fixedly installed on the inner surface of the discharge pipe (3).

3. The greenhouse insulation mechanism for fruit tree planting according to claim 1, characterized in that: The axial fan (5) is fixedly installed on the outer surface of the output shaft of the first motor (4), and the insect screen (6) is fixedly installed at the output end of the discharge pipe (3).

4. The greenhouse insulation mechanism for fruit tree planting according to claim 1, characterized in that: The second motor (8) is fixedly installed on the inner surface of the crossbeam of the shed (1), and the worm gear (9) is fixedly installed at the output end of the second motor (8); The worm gear (10) is meshed with the outer surface of the worm (9).

5. The greenhouse insulation mechanism for fruit tree planting according to claim 1, characterized in that: The fixed roller (11) is fixedly sleeved on the inner surface of the worm (9), and the fixed roller (11) is rotatably connected to the opposite side of the crossbeam of the shed body (1); Two cams (12) are fixedly sleeved on the outer surface of the fixed roller (11).

6. The greenhouse insulation mechanism for fruit tree planting according to claim 1, characterized in that: Both L-shaped fixing plates (15) are fixedly installed on the upper surface of the shed body (1), and two springs (14) are fixedly installed on the lower surface of the cross plate of the two L-shaped fixing plates (15); Two pulleys (13) are fixedly installed at the lower ends of two springs (14), and the two pulleys (13) are in contact with two cams (12).

7. The greenhouse insulation mechanism for fruit tree planting according to claim 1, characterized in that: The two sliding rollers (16) are respectively fixedly installed on the upper surface of the two pulleys (13), and the two sliding rollers (16) slide through the upper surface of the two L-shaped fixed plates (15); Among them, the movable support rod (17) is fixedly installed on the upper end of the two sliding rollers (16).