A greenhouse roof fixed opening curtain system
By controlling the rotation of the film-rolling rod with a bidirectional output motor and limit switches, the problems of insufficient power and complexity of existing electric window opening systems for greenhouse roofs are solved, enabling stable regulation of the greenhouse environment and convenient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN SHENGJIANHE AGRICULTURAL ENGINEERING TECHNOLOGY CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-24
AI Technical Summary
Existing electric window opening systems for greenhouse roofs are insufficient in long greenhouses, and the unidirectional motor drive requires additional mechanical switching, resulting in high system complexity and failure rate, making it difficult to meet the greenhouse environment regulation needs under different weather conditions.
The rotation of the film-rolling rod is controlled by a bidirectional output motor, combined with a telescopic rod and limit switch, to achieve stable opening and closing of the fixed window, simplifying the mechanical structure and adapting to different environmental conditions.
It improves the stability and convenience of the system, reduces the failure rate, enables precise adjustment of the greenhouse environment, and is suitable for various greenhouse roof frame structures.
Smart Images
Figure CN224538941U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of greenhouse construction technology, specifically a greenhouse roof fixed window roll-up film system. Background Technology
[0002] In greenhouse cultivation, ventilation is crucial for regulating temperature, humidity, and gas concentration. Currently, various ventilation methods are common in greenhouses, with motorized roof windows being the most prevalent. However, existing motorized roof window systems have some shortcomings. For example, the limited power of unidirectional motors cannot meet the needs of long greenhouses. While some motorized film-rolling systems improve operational convenience to some extent, they often use unidirectional motors, requiring additional mechanical structures or control methods to switch directions when opening and closing the vents. This not only increases system complexity but may also lead to a higher failure rate. Furthermore, in greenhouse ventilation systems with fixed roof windows, how to efficiently and stably achieve film-rolling operation to meet the needs of regulating the internal environment of the greenhouse under different weather conditions remains a pressing issue. Utility Model Content
[0003] The purpose of this utility model is to provide a fixed window roll-up film system for greenhouse roofs, thereby improving the stability of automatic opening and closing of fixed windows and adapting to the usage requirements under different environmental conditions. To achieve the above objective, this utility model adopts the following technical solution:
[0004] This utility model discloses a greenhouse roof fixed window roll film system, which is installed on the roof frame and includes: a fixed window frame and a roll film assembly installed on the fixed window frame, wherein the fixed window frame is installed on the top of the roof frame.
[0005] The film rolling assembly includes: a first film, a film rolling rod, a motor, and a telescopic rod. The motor is fixed to the fixed window frame. The two ends of the telescopic rod are connected to the motor and the film rolling rod respectively through universal joints. One end of the first film is fixed to the fixed window frame, and the other end is fixed to the film rolling rod. The film rolling rod rotates under the control of the motor to open and close the fixed window.
[0006] Furthermore, the fixed window frame includes: extending arches, window surface longitudinal bars, and window surface horizontal bars. The window surface longitudinal bars are located on the left and right sides, and are connected to each other via the window surface horizontal bars to form the window surface. Several extending arches are provided and evenly distributed along the direction of the window surface horizontal bars. One end of each extending arch is connected to the top of the roof frame, and the other end is connected to the window surface horizontal bar above the window surface to keep the window surface upright.
[0007] Furthermore, the fixed window frame also includes: a plurality of first support rods, one end of the first support rod is fixed at the connection between the extended arch and the window horizontal bar, and the other end is fixed at the top of the roof frame, the first support rods, the extended arch and the roof frame forming a near-triangular support structure.
[0008] Furthermore, the motor is mounted on the first support rod, the film rolling rod is placed parallel to the window horizontal bar, one end of the first film is fixed to the window horizontal bar above the window, the other end is fixed to the film rolling rod, and the mounting points of the motor and the telescopic rod are covered with a second film.
[0009] Preferably, the motor is a bidirectional output motor, and both ends of the motor are connected to the film rolling rod through the telescopic rod, so as to open and close the window surfaces on adjacent sides simultaneously.
[0010] Preferably, the motor is a single unit and is mounted on a first support rod in the middle of the window surface. The total length of the telescopic rods and the film rolling rods on both sides of the motor is equal to the length of the window surface, so as to cover the entire window surface.
[0011] Preferably, the fixed window frame further includes a second support rod, which is installed between the extended arch and the roof frame to further support the fixed window frame.
[0012] The second support rod is provided in several parts, which further divides the support structure formed by the first support rod, the extended arch rod and the roof frame into several near-triangular support structures.
[0013] Preferably, the fixed window frame further includes: a film mounting rod and a third film fixed on the film mounting rod, the film mounting rod being placed along the direction of the window horizontal bar and installed above the window horizontal bar below the window surface, and the third film covering the space between the film mounting rod and the window horizontal bar.
[0014] Preferably, a limit switch is installed on the window horizontal bar. The limit switch is electrically connected to the motor. When the film rolling rod moves to the upper or lower edge of the window, the corresponding limit switch is triggered, thereby controlling the motor to stop running.
[0015] After adopting the above technical solution, the present invention has the following effects:
[0016] 1. This utility model features a simple structural design, reducing unnecessary complex components and lowering the probability of malfunctions. Furthermore, the proper installation of the telescopic rod ensures greater stability and reliability of the entire system during operation, enabling it to adapt to various environmental conditions.
[0017] 2. In this utility model, the motor adopts bidirectional output. The rotation of the film rolling rod is controlled by the motor, which in turn controls the opening and closing of the fixed window. There is no need for complicated mechanical structure switching, which greatly improves the convenience of operation and reduces labor costs.
[0018] 3. The addition of a limit switch in this utility model ensures that the film rolling rod can accurately stop at the limit position of the ventilation opening during rotation, thereby achieving precise control over the opening and closing degree of the fixed window. This facilitates precise adjustment of the internal environment of the greenhouse and meets the environmental requirements of different plant growth.
[0019] 4. This utility model is applicable to various types of greenhouse roof frame structures. Whether it is a large multi-span greenhouse or a small single-span greenhouse, it can be flexibly installed and adjusted according to actual size and needs, and has wide applicability. Attached Figure Description
[0020] Figure 1 This is an elevation view of the fixed window frame of this utility model installed on the roof frame.
[0021] Figure 2 This is a three-dimensional structural diagram of the end of the fixed window frame of this utility model.
[0022] Figure 3 This is a three-dimensional structural diagram of the installation nodes for the fixed window frame and the roll film assembly of this utility model.
[0023] Figure 4 This is an elevation view of the film winding assembly in Embodiment 1 of this utility model.
[0024] Figure 5 This is an elevation view of the film roll assembly in the open state in Embodiment 1 of this utility model.
[0025] Figure 6 This is an elevation view of the film winding assembly in the closed state in Embodiment 1 of this utility model.
[0026] Figure 7 This is a partial elevation view of the film roll assembly in the closed state in Embodiment 1 of this utility model.
[0027] Figure 8 This is a partial enlarged view of the connection between the motor, telescopic rod, and film winding rod in the film winding assembly of Embodiment 1 of this utility model.
[0028] Figure 9 This is an elevation view of the film winding assembly in Embodiment 2 of this utility model.
[0029] Figure 10 This is an elevation view of the film roll assembly in the open state in Embodiment 2 of this utility model.
[0030] Figure 11This is an elevation view of the film winding assembly in the closed state in Embodiment 2 of this utility model.
[0031] Figure 12 This is an elevation view of the film winding assembly in Embodiment 3 of this utility model.
[0032] Figure 13 This is an elevation view of the film roll assembly in the open state in Embodiment 3 of this utility model.
[0033] Figure 14 This is an elevation view of the film winding assembly in the closed state in Embodiment 3 of this utility model.
[0034] Figure 15 This is a partial elevation view of the film winding assembly in the closed state in embodiments two and three of this utility model.
[0035] Figure 16 This is a partial enlarged view of the connection between the motor, telescopic rod, and film winding rod in the film winding assembly of Embodiments 2 and 3 of this utility model.
[0036] Main component symbols:
[0037] 1: Roof frame; 2: Fixed window frame; 21: Extension arch; 22: Window longitudinal bar; 23: Window horizontal bar; 24: First support bar; 25: Second support bar; 26: Film mounting bar; 27: Second film; 28: Third film; 3: Film roll assembly; 31: First film; 32: Film roll rod; 33: Motor; 34: Telescopic rod; 35: Universal joint. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0039] Example 1
[0040] like Figures 1 to 8 As shown, this utility model discloses a greenhouse roof fixed window roll film system, which is installed on the roof frame 1. It includes: a fixed window frame 2 and a roll film assembly 3 installed on the fixed window frame 2. The fixed window frame 2 is installed on the top of the roof frame 1.
[0041] The film roll assembly 3 includes: a first film 31, a film roll rod 32, a motor 33, and a telescopic rod 34. The motor 33 is fixed on the fixed window frame 2. The two ends of the telescopic rod 34 are connected to the motor 33 and the film roll rod 32 respectively through universal joints 35. One end of the first film 31 is fixed on the fixed window frame 2, and the other end is fixed on the film roll rod 32. The film roll rod 32 rotates under the control of the motor 33 to open and close the fixed window.
[0042] In this embodiment, the fixed window frame 2 includes: an extension arch 21, a window surface longitudinal bar 22, and a window surface horizontal bar 23. The window surface longitudinal bars 22 are arranged on the left and right sides, and the window surface longitudinal bars 22 are connected to each other through the window surface horizontal bar 23 to form a window surface.
[0043] Several extension arches 21 are provided and evenly distributed along the direction of the window horizontal bar 23. One end of the extension arch 21 is connected to the top of the roof frame 1, and the other end is connected to the window horizontal bar 23 above the window to make the window stand upright.
[0044] The fixed window frame 2 also includes several first support rods 24. One end of the first support rod 24 is fixed at the connection between the extension arch rod 21 and the window horizontal bar 23, and the other end is fixed at the top of the roof frame 1. The first support rods 24, the extension arch rod 21 and the roof frame 1 form a near-triangular support structure.
[0045] In this embodiment, the fixed window frame 2 further includes: several second support rods 25, which are installed between the extension arch rod 21 and the roof frame 1, further dividing the support structure formed by the first support rod 24, the extension arch rod 21 and the roof frame 1 into several near-triangular support structures to further support the fixed window frame 2.
[0046] The motor 33 is mounted on the first support rod 24, the film-rolling rod 32 is placed parallel to the window horizontal bar 23, one end of the first film 31 is fixed to the window horizontal bar 23 above the window, and the other end is fixed to the film-rolling rod 32. A second film 27 covers the mounting points of the motor 33 and the telescopic rod 34. Since the motor 33 controls the rotation of the film-rolling rod 32, thus opening and closing the fixed window, the first film 31 on the film-rolling rod 32 cannot cover the motor 33 and the telescopic rod 34, making it easy for rainwater to seep into the motor 33 and affect its service life. Therefore, covering the mounting points of the motor 33 and the telescopic rod 34 with the second film 27 protects the motor 33 and the telescopic rod 34, extending the service life of the motor 33.
[0047] In this embodiment, the motor 33 adopts a unidirectional output, that is, only one end of the motor 33 is connected to the film rolling rod 32 through the telescopic rod 34 to open and close the window on one side. At the same time, multiple motors 33 are provided and are installed on different first support rods 24. The opening and closing of the fixed window is controlled by multiple motors 33 simultaneously, which meets the needs of automatic film rolling of large-area fixed window.
[0048] Secondly, in this embodiment, the fixed window frame 2 also includes: a film mounting rod 26 and a third film 28 fixed on the film mounting rod 26. The film mounting rod 26 is placed along the direction of the window horizontal bar 23 and installed above the window horizontal bar 23 below the window. The third film 28 covers the space between the film mounting rod 26 and the window horizontal bar 23. When the fixed window is closed, since there is still a gap between the roll-up film rod 32 and the window horizontal bar 23 below the window, the third film 28 can further prevent rainwater and other substances from seeping in.
[0049] In addition, in this embodiment, a limit switch (not shown in the figure) is installed on the window horizontal bar 23. The limit switch (not shown in the figure) is electrically connected to the motor 33. When the film rolling rod 32 moves to the upper and lower edges of the window, the corresponding limit switch (not shown in the figure) is triggered, thereby controlling the motor 33 to stop running.
[0050] Example 2
[0051] The difference between this embodiment and Embodiment 1 is that the motor in the film winding assembly is different.
[0052] like Figures 9 to 11 as well as Figure 15 and Figure 16 As shown, in this embodiment, motor 33 is a bidirectional output motor. Both ends of motor 33 are connected to film rolling rod 32 via telescopic rods 34 to simultaneously open and close the window surfaces on both sides. By using a bidirectional output motor, the need for automatic film rolling of large-area fixed windows can be met while further reducing the use of motors and installation costs.
[0053] Example 3
[0054] The difference between this embodiment and embodiment two is that only one set of film winding assembly 3 is set, that is, only one bidirectional output motor 33 is installed, and the motor 33 has greater power.
[0055] like Figures 12 to 16 As shown, in this embodiment, a single motor 33 is installed on the first support rod 24 in the middle of the window surface. The total length of the telescopic rods 34 and the film-rolling rods 32 on both sides of the motor 33 is equal to the length of the window surface. The single motor 33 controls the rotation of the film-rolling rods 32 on both sides, thereby realizing the opening and closing of the entire window surface. By controlling the simultaneous opening and closing of the window surface on both sides with a single motor 33, the number of motors 33 installed can be minimized, and the integrity of the first film 31 covering the window surface is better, avoiding gaps between the first film 31 caused by multiple sets of film-rolling assemblies 3, thus providing better protection.
[0056] The above description is only a preferred embodiment of the present utility model. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.
Claims
1. A greenhouse roof fixed window roll-up film system, installed on the roof frame, characterized in that, include: A fixed window frame and a roll-up film assembly mounted on the fixed window frame, the fixed window frame being mounted on top of the roof frame; The film rolling assembly includes: a first film, a film rolling rod, a motor, and a telescopic rod. The motor is fixed to the fixed window frame. The two ends of the telescopic rod are connected to the motor and the film rolling rod respectively through universal joints. One end of the first film is fixed to the fixed window frame, and the other end is fixed to the film rolling rod. The film rolling rod rotates under the control of the motor to open and close the fixed window.
2. The greenhouse roof fixed window roll-up film system as described in claim 1, characterized in that: The fixed window frame includes: an extension arch, a window surface longitudinal bar, and a window surface horizontal bar. The window surface longitudinal bars are located on the left and right sides, and the window surface longitudinal bars are connected to each other through the window surface horizontal bars to form a window surface. The extension arch is provided in several parts and is evenly distributed along the direction of the window surface horizontal bar. One end of the extension arch is connected to the top of the roof frame and the other end is connected to the window surface horizontal bar above the window to make the window stand upright.
3. A greenhouse roof fixed window roll-up film system as described in claim 2, characterized in that: The fixed window frame further includes: several first support rods, one end of which is fixed at the connection between the extended arch and the window crossbar, and the other end is fixed at the top of the roof frame. The first support rods, the extended arch, and the roof frame form a near-triangular support structure.
4. A greenhouse roof fixed window roll-up film system as described in claim 3, characterized in that: The motor is mounted on the first support rod, the film rolling rod is placed parallel to the window horizontal bar, one end of the first film is fixed to the window horizontal bar above the window, and the other end is fixed to the film rolling rod, and the installation points of the motor and the telescopic rod are covered with a second film.
5. A greenhouse roof fixed window roll-up film system as described in claim 4, characterized in that: The motor is a bidirectional output motor, and both ends of the motor are connected to the film rolling rod through the telescopic rod to simultaneously open and close the window surfaces on adjacent sides.
6. A greenhouse roof fixed window roll-up film system as described in claim 5, characterized in that: The motor is configured as a single unit and installed on the first support rod in the middle of the window surface. The total length of the telescopic rods and the film rolling rod on both sides of the motor is equal to the length of the window surface, so as to cover the entire window surface.
7. A greenhouse roof fixed window roll-up film system as described in claim 3, characterized in that: The fixed window frame also includes a second support rod, which is installed between the extended arch and the roof frame to further support the fixed window frame.
8. A greenhouse roof fixed window roll-up film system as described in claim 7, characterized in that: The second support rod is provided in several parts, which further divides the support structure formed by the first support rod, the extended arch rod and the roof frame into several near-triangular support structures.
9. A greenhouse roof fixed window roll-up film system as described in any one of claims 2-8, characterized in that: The fixed window frame further includes: a film mounting rod and a third film fixed on the film mounting rod. The film mounting rod is placed along the direction of the window horizontal bar and installed above the window horizontal bar below the window surface. The third film covers the space between the film mounting rod and the window horizontal bar.
10. A greenhouse roof fixed window roll-up film system as described in claim 9, characterized in that: Limit switches are installed on the horizontal bar of the window surface. The limit switches are electrically connected to the motor. When the film rolling rod moves to the upper or lower edge of the window surface, the corresponding limit switches are triggered, thereby controlling the motor to stop running.