Automatic film rolling device for greenhouse of seedling culture
An automatic film-rolling device using electromagnets and magnetic pads solves the problem of air leakage in the greenhouse environment, enables automatic temperature control and environmental regulation, improves environmental stability, increases film-rolling efficiency, and reduces mechanical wear and manual operation costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DINGXI JINYUAN AGRI DEV
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional greenhouse ventilation management struggles to respond in real time to fluctuations in environmental parameters, and the closed covering film can easily create air leakage channels, leading to unstable temperature and humidity inside the greenhouse.
An automatic film-winding device using electromagnets and magnetic pads enhances airtightness and reduces air and temperature leakage when the film is fully unfolded, utilizing the principle of magnetic sealing.
It has achieved stable regulation of the greenhouse environment, improved film rolling efficiency, and reduced mechanical wear and manual operation costs.
Smart Images
Figure CN224402378U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of greenhouses, and more specifically, to an automatic film rolling device for seedling cultivation greenhouses. Background Technology
[0002] In recent years, with the rapid development of facility agriculture, greenhouses have been increasingly widely used in seedling cultivation. Precise control of temperature and humidity inside the greenhouse is crucial to ensuring the healthy growth of seedlings, and the opening and closing of ventilation openings is the core link in achieving environmental regulation. Traditional greenhouse ventilation management generally adopts the method of manually operating the film rolling device, which not only makes it difficult to respond to fluctuations in environmental parameters in real time, but also easily creates local air leakage channels due to physical gaps or wind disturbances after the covering film is closed, resulting in serious damage to the stability of temperature and humidity inside the greenhouse.
[0003] Based on this, the present invention provides an automatic film rolling device for seedling cultivation greenhouses. Utility Model Content
[0004] To address the problems mentioned in the background art, this utility model provides an automatic film rolling device for seedling cultivation greenhouses. The combination of the electromagnet group and the magnetic pad forms a magnetic seal when the covering film is fully unfolded, effectively enhancing the airtightness of the greenhouse and reducing air and temperature leakage.
[0005] The automatic film-rolling device for seedling cultivation greenhouses provided by this utility model adopts the following technical solution:
[0006] An automatic film-rolling device for seedling cultivation greenhouses includes a frame set at a side passage of the greenhouse; a rotating shaft rotatably set within the frame; a covering film, one end fixed to the rotating shaft, the other end passing through the side of the greenhouse and covering the passage on the greenhouse; a motor set on the side of the frame for driving the rotating shaft to rotate; several magnetic pads, all set on the side of the covering film; and an electromagnet assembly set at the greenhouse passage, corresponding to the magnetic pads; the motor is electrically connected to the electromagnet assembly, and when the motor is working, the electromagnet assembly is energized and works, and the electromagnet assembly and the magnetic pads have the same magnetic poles.
[0007] Preferably, a driven shaft is rotatably provided inside the frame, and the driven shaft is in contact with the covering film.
[0008] Preferably, the frame is provided with a control component for controlling the start and stop of the motor.
[0009] Preferably, the rotating shaft includes a first insert and a second insert, the first insert and the second insert being inserted together, and both the first insert and the second insert being rotatably disposed within the frame.
[0010] Preferably, a bevel gear is provided in the middle of the insertion rod, a connecting rod is slidably inserted into the bottom of the frame, and a bevel gear is provided at the top of the connecting rod, the bevel gear being able to mesh with the bevel gear.
[0011] Preferably, the bottom of the connecting rod is provided with a J-shaped rod, which is used by the user to push the connecting rod up to make the second bevel gear contact the first bevel gear, and to rotate the connecting rod to drive the second bevel gear to rotate.
[0012] In summary, this utility model has the following beneficial technical effects:
[0013] When the motor is connected to the circuit, the electromagnet assembly generates the same magnetic poles as the magnetic pad, thereby reducing the resistance between the electromagnet assembly and the magnetic pad on the covering film. The motor drives the rotating shaft to rotate, causing the covering film to roll up on the shaft, thus opening the greenhouse passage and ventilating the seedlings inside. When the covering film is lowered, the motor reverses to lower the covering film to cover the passage (a counterweight is installed at the bottom of the covering film to increase the smoothness of the lowering). When the covering film completely covers the greenhouse passage, the motor is de-energized, and the magnetic pad can attract the electromagnet assembly, thereby increasing the sealing at the contact point between the covering film and the greenhouse. Through this structural design, the cooperation between the electromagnet assembly and the magnetic pad forms a magnetic seal when the covering film is fully unfolded, effectively enhancing the airtightness of the greenhouse and reducing air and temperature leakage.
[0014] During the film rolling process, the principle of repulsion between like magnetic poles is used to reduce the frictional resistance between the covering film and the side of the greenhouse, thereby improving the film rolling efficiency while reducing mechanical wear.
[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an automatic film rolling device for seedling cultivation greenhouse according to an embodiment of this utility model;
[0017] Figure 2 This is a schematic diagram of the other side of an automatic film rolling device for seedling cultivation in a greenhouse, as described in an embodiment of this utility model.
[0018] Figure 3 This is a cross-sectional structural schematic diagram of an automatic film-rolling device for seedling cultivation in a greenhouse, as described in an embodiment of this utility model.
[0019] Figure 4 This is a schematic diagram of the internal structure of an automatic film rolling device for seedling cultivation in a greenhouse according to an embodiment of this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the magnet pad and electromagnet assembly in an embodiment of this utility model;
[0021] Figure 6 This is a schematic diagram of the structure of the rotating shaft, bevel gear one, and bevel gear two in an embodiment of this utility model.
[0022] Explanation of reference numerals in the attached drawings: 1. Greenhouse; 2. Frame; 3. Rotating shaft; 30. Insert rod one; 31. Insert rod two; 4. Covering film; 5. Motor; 6. Magnetic pad; 7. Electromagnet assembly; 8. Driven shaft; 9. Bevel gear one; 10. Connecting rod; 11. Bevel gear two; 12. J-shaped rod. Detailed Implementation
[0023] The following is in conjunction with the appendix Figures 1 to 6 The present invention will be described in further detail below.
[0024] It should be noted that the accompanying drawings are schematic and not to scale. For clarity and convenience, the relative dimensions and proportions of the parts shown are exaggerated or reduced in size; all dimensions are merely illustrative and not limiting. Furthermore, the same reference numerals are used for the same structures, elements, or fittings appearing in more than two drawings to indicate similar features.
[0025] Example 1
[0026] This utility model discloses an automatic film-rolling device for seedling cultivation greenhouses. (Refer to...) Figures 1 to 5 An automatic film-rolling device for seedling cultivation greenhouses includes a frame 2, a rotating shaft 3, a covering film 4, a motor 5, several magnetic pads 6, and an electromagnet assembly 7, all located at a side passage of a greenhouse 1. The rotating shaft 3 is rotatably mounted inside the frame 2. One end of the covering film 4 is fixed to the rotating shaft 3, and the other end passes through the side of the greenhouse 1 and covers the passage on the greenhouse 1. The motor 5 is located on the side of the frame 2 and is used to drive the rotating shaft 3 to rotate. Several magnetic pads 6 are all located on the side of the covering film 4. The electromagnet assembly 7 is located at the passage of the greenhouse 1 and corresponds to the magnetic pads 6. The motor 5 is electrically connected to the electromagnet assembly 7. When the motor 5 is working, the electromagnet assembly 7 is energized and works, and the electromagnet assembly 7 and the magnetic pads 6 have the same magnetic poles.
[0027] Specifically, the electromagnet group 7 includes multiple electromagnets connected in series and arranged in a U-shape on the membrane at the passage of the greenhouse 1. It is electrically connected to the circuit of the motor 5. When the motor 5 is powered on, the circuit of the electromagnet group 7 is connected and it has magnetic force. The motor 5 is powered by an external power source near the greenhouse.
[0028] Specifically, when the motor 5 is connected to the circuit, the electromagnet group 7 generates the same magnetic poles as the magnetic pad 6, thereby reducing the resistance between the electromagnet group 7 and the magnetic pad 6 on the covering film 4. The motor 5 drives the rotating shaft 3 to rotate, causing the covering film 4 to be rolled up on the rotating shaft 3, thereby opening the passage of the greenhouse 1 and ventilating the seedlings inside the greenhouse 1. When the covering film 4 is lowered, the motor 5 reverses to lower the covering film 4 to cover the passage. (To increase the smoothness of the lowering of the covering film 4, a counterweight is set at the bottom of the covering film 4). When the covering film 4 completely covers the passage of the greenhouse 1, the motor 5 is de-energized, and the magnetic pad 6 can attract the electromagnet group 7, thereby increasing the sealing at the contact point between the covering film 4 and the greenhouse 1.
[0029] Through this structural design, the electromagnet group 7 and the magnetic pad 6 work together to form a magnetic seal when the covering film 4 is fully unfolded, which effectively enhances the airtightness of the greenhouse and reduces air and temperature leakage. When rolling the film, the principle of repulsion between like magnetic poles reduces the frictional resistance between the covering film 4 and the side of the greenhouse 1, improving the efficiency of rolling the film while reducing mechanical wear.
[0030] like Figure 5 As shown, a driven shaft 8 is rotatably installed inside the frame 2, and the driven shaft 8 contacts the covering film 4. This design reduces the resistance between the covering film 4 and the greenhouse 1.
[0031] Example 2
[0032] This embodiment is a further optimization based on the first embodiment described above. The parts identical to the aforementioned technical solutions will not be repeated here. Further improvements are made to better realize this utility model, such as... Figure 4 As shown, the following configuration is specifically adopted: In this embodiment, a control component is provided inside the frame 2 to control the start and stop of the motor 5. The control component is a controller, which can be a PLC controller, a computer, or a CPU, etc. In this embodiment, it is a PLC controller. The start and stop times of the motor 5 are set by the controller. Thus, when dealing with a large number of greenhouses 1, the controller can automatically control them, reducing the time spent manually operating the motor 5. Through this design, centralized and programmed control of multiple greenhouse 1 film rolling devices can be achieved, eliminating the need for manual operation one by one, improving the management efficiency of a large number of greenhouse groups, and reducing labor costs.
[0033] Example 3
[0034] This embodiment is a further optimization based on the first embodiment described above. The parts identical to the aforementioned technical solutions will not be repeated here. Further improvements are made to better realize this utility model, such as... Figure 6As shown, the following configuration is specifically adopted. In this embodiment, the rotating shaft 3 includes a first insertion rod 30 and a second insertion rod 31. The first insertion rod 30 and the second insertion rod 31 are inserted into each other. Both the first insertion rod 30 and the second insertion rod 31 are rotatably mounted inside the frame 2. This design allows for flexible adjustment of the length of the rotating shaft 3, which can meet the needs of different greenhouses 1 to a certain extent.
[0035] Example 4
[0036] This embodiment is a further optimization based on the above embodiment three. The parts that are the same as the aforementioned technical solutions will not be repeated here. Further, to better realize this utility model, such as... Figure 6 As shown, the following configuration is specifically adopted: in this embodiment, a bevel gear 9 is provided in the middle of the insertion rod 30, a connecting rod 10 is slidably inserted into the bottom of the frame 2, and a bevel gear 11 is provided at the top of the connecting rod 10. The bevel gear 11 can mesh with the bevel gear 9.
[0037] like Figure 6 As shown, a J-shaped rod 12 is provided at the bottom of the connecting rod 10, which is used by the user to push the connecting rod 10 up to make the bevel gear 2 11 contact the bevel gear 1 9, and rotate the connecting rod 10 to drive the bevel gear 2 11 to rotate.
[0038] When greenhouse 1 is without power, the user can push up the J-shaped rod 12 so that the bevel gear 11 on the connecting rod 10 meshes with the bevel gear 9. Then, rotate the J-shaped rod 12 to make the rotating shaft 3 rotate, thus completing the winding of the covering film 4. With this design, the user can manually lift the covering film 4 to overcome the resistance of the magnetic force of the magnetic pad 6 and make it convenient to manually wind up.
[0039] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0040] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.
[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0042] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0044] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A seedling culture greenhouse automatic film rolling device, characterized in that, include: A frame (2) is set at the side passage of the greenhouse (1); The rotating shaft (3) is rotatably set inside the frame (2); The covering film (4) is fixed on the rotating shaft (3) at one end and passes through the side of the greenhouse (1) and covers the passage on the greenhouse (1) at the other end; The motor (5) is located on the side of the frame (2) and is used to drive the rotating shaft (3) to rotate. Several magnetic pads (6) are all set on the side of the covering film (4); An electromagnet assembly (7) is set at the passage of the greenhouse (1) and corresponds to the magnetic pad (6); The motor (5) is electrically connected to the electromagnet group (7). When the motor (5) is working, the electromagnet group (7) is energized and works, and the electromagnet group (7) and the magnetic pad (6) have the same magnetic poles.
2. The automatic film-rolling device for seedling cultivation greenhouses according to claim 1, characterized in that: A driven shaft (8) is rotatably disposed inside the frame (2), and the driven shaft (8) contacts the covering film (4).
3. The automatic film-rolling device for seedling cultivation greenhouses according to claim 1, characterized in that: The frame (2) is equipped with a control component for controlling the start and stop of the motor (5).
4. The automatic film-rolling device for seedling cultivation greenhouses according to claim 1, characterized in that: The rotating shaft (3) includes a first insert (30) and a second insert (31), which are inserted together. Both the first insert (30) and the second insert (31) are rotatably disposed within the frame (2).
5. The automatic film-rolling device for seedling cultivation greenhouses according to claim 4, characterized in that: A bevel gear 1 (9) is provided in the middle of the insertion rod 1 (30), a connecting rod (10) is slidably inserted into the bottom of the frame (2), and a bevel gear 2 (11) is provided at the top of the connecting rod (10). The bevel gear 2 (11) can mesh with the bevel gear 1 (9).
6. The automatic film-rolling device for seedling cultivation greenhouses according to claim 5, characterized in that: The bottom of the connecting rod (10) is provided with a J-shaped rod (12), which is used by the user to push the connecting rod (10) up to make the second bevel gear (11) contact the first bevel gear (9), and rotate the connecting rod (10) to drive the second bevel gear (11) to rotate.