A type of multi-span membrane greenhouse with an openable pointed roof

Abstract

A multi-span greenhouse with an openable, pointed roof includes: a roof forming the pointed roof, a transmission mechanism, and a greenhouse frame. The transmission mechanism includes: a window-opening motor, a window-opening gear, a window-opening rack, and a window-opening arm. The greenhouse frame includes: gutters for drainage and trusses supporting the pointed roof. At least partially, each side of the pointed roof is provided with an openable / closable skylight that is linked to the window-opening arm. The shaft end of the window-opening arm is hinged to the gutter. The window-opening motor is fixedly mounted on the truss. The output end of the window-opening motor is connected to the window-opening gear, which meshes with one end of the window-opening rack. The other end of the window-opening rack is connected to the window-opening arm. The advantages are that the greenhouse roof can be opened, providing natural light for crop growth, greatly increasing the ventilation area, and quickly removing hot and humid air from the greenhouse, achieving rapid air exchange between the inside and outside of the greenhouse.

Description

Technical Field

[0001] This utility model relates to the field of agricultural engineering technology, and in particular to a multi-span membrane greenhouse with an openable pointed roof. Background Technology

[0002] Natural ventilation relies primarily on external wind pressure and thermal pressure between the inside and outside air to create airflow, thus exchanging indoor and outdoor air. It is a crucial process in greenhouse cultivation. Properly designed greenhouse window systems can remove excess heat and humidity, increase CO2 levels, and improve the greenhouse environment, thereby effectively enhancing the efficiency and energy conservation of various environmental control equipment. Installing skylights at the greenhouse roof ensures ample air convection, achieving excellent ventilation and meeting the needs of plant growth.

[0003] Currently, in greenhouse facilities, in order to facilitate ventilation and promote plant growth, skylights are added to the top of the greenhouse as a ventilation mechanism. This mechanism has the following shortcomings: 1. The actual effective ventilation area when the windows are opened is small. In summer, the greenhouse must be cooled by using wet curtain fans or other methods, resulting in high operating costs; 2. The design and manufacture of the top-opening window mechanism is complex, requiring multiple sets of movable and fixed window frames. The amount of aluminum and its connecting parts used is large, resulting in high costs and complicated installation.

[0004] How to provide a greenhouse with a large effective ventilation area has become an urgent problem to be solved. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a multi-span greenhouse with an openable pointed roof, which breaks away from the traditional method of fixing the greenhouse top. Instead, it uses the greenhouse gutter as a fixed pivot axis, allowing the greenhouse roof to rotate around the gutter and thus achieve the purpose of opening the greenhouse top.

[0006] According to one aspect of this utility model, a multi-span greenhouse with an openable pointed roof is provided, comprising: a roof forming a pointed roof, a transmission mechanism, and a greenhouse frame, wherein the transmission mechanism includes: a window opening motor, a window opening gear, a window opening rack, and a window opening arm; the greenhouse frame includes: a gutter for drainage and a truss for supporting the pointed roof, wherein each side of the pointed roof is at least partially provided with an openable and closable skylight that is linked to the window opening arm, the shaft end of the window opening arm is hinged to the gutter, the window opening motor is fixedly installed on the truss, the output end of the window opening motor is connected to the window opening gear, the window opening gear meshes with one end of the window opening rack, and the other end of the window opening rack is hinged to the window opening arm.

[0007] Preferably, the greenhouse frame also includes columns, with the top of the columns connected to gutters via connectors.

[0008] Preferably, a composite beam is horizontally erected above the column, and a supporting beam column is set in the middle of the composite beam. The supporting beam column is connected to another gutter through a connector above it. The gutter and the other gutter respectively constitute the bottom support of the opposite side of the roof of the pointed roof.

[0009] Preferably, a condensation collection trough is installed on at least one side above the supporting beam / column.

[0010] Preferably, a top water trough is fixedly installed on the top side of the truss, and when the skylight on the opposite side closes from the open state to form a pointed roof state, the top water trough is located on the side below the roof.

[0011] Preferably, a drive shaft is provided that is connected to the output end of the window opening motor via a coupling. Multiple gears are provided along the longitudinal direction of the drive shaft, and the window opening racks on opposite sides of the roof mesh with the corresponding gears from the upper and lower sides of the drive shaft axis, respectively.

[0012] Preferably, a sealing element is provided at the connection between the transmission mechanism and the greenhouse frame.

[0013] Preferably, the roof is covered with a 0.3mm thick high-strength woven film.

[0014] Preferably, the window-opening rack is configured as a straight rack, with a guide rail attached to one end of the rack to constrain its movement in a set direction; or, the window-opening rack is configured as an arc-shaped rack, having an arc-shaped dimension and curvature that allows it to remain engaged with the window-opening gear even when the overall position and direction of the rack change with the rotation of the window-opening arm, with a corresponding guide mechanism attached to one end of the rack.

[0015] Preferably, above n parallel bottom supports, n-1 parallel extended pointed roofs constitute the main roof structure of the greenhouse.

[0016] The advantages of this invention are: the greenhouse roof can be opened to provide natural light for crop growth, greatly increasing the ventilation area and quickly removing the high temperature and humidity air inside the greenhouse, thus achieving rapid air exchange between the inside and outside of the greenhouse. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional schematic diagram of a multi-span membrane greenhouse with an operable roof when the roof is open.

[0019] Figure 2 This is a cross-sectional schematic diagram of a multi-span membrane greenhouse with an operable, pointed roof when the roof is closed.

[0020] Figure 3 This is a partial enlarged view of the transmission mechanism of the roof-openable pointed multi-span membrane greenhouse of this utility model.

[0021] Figure 4 This is a schematic diagram illustrating the transmission mechanism in a scenario where the window-opening gear rotates counterclockwise.

[0022] Figure 5 This is a schematic diagram illustrating the structure of a window-opening gear synchronously driving multiple window-opening racks.

[0023] Explanation of reference numerals in the attached drawings: 1. Column; 2. Gutter; 3. Composite beam; 4. Condensation collection trough; 5. Window opening arm; 6. Window opening rack; 7. Truss; 8. Top water trough; 9. Window opening gear; 10. Window opening motor; 11. Skylight. Detailed Implementation

[0024] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The exemplary embodiments described below and illustrated in the drawings are intended to teach the principles of the present invention, enabling those skilled in the art to implement and use the present invention in various environments and for various applications. Therefore, the scope of protection of the present invention is defined by the appended claims, and the exemplary embodiments are not intended, and should not be considered, a limiting description of the scope of protection of the present invention. Furthermore, for ease of description, the dimensions of the various parts shown in the drawings are not necessarily drawn to actual scale. Orientation descriptions, such as inner, outer, upper, lower, left, right, top, bottom, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or partial structures will be omitted where they may cause confusion or make the understanding of the present disclosure difficult to observe. Unless otherwise specifically stated, the order and numerical values ​​of the components and assembly steps described in the embodiments do not limit the scope of this invention.

[0025] like Figures 1-3As shown, according to an embodiment of the present invention, an openable pointed roof multi-span membrane greenhouse is provided. Each side of the pointed roof is provided with at least a partial openable and closable skylight 11 that is linked with the window opening arm 5. The window opening motor 10 fixed on the truss 7 drives the window opening gear 9 to rotate, thereby meshing and driving the window opening rack 6 to move. The window opening arm 5 connected to the window opening rack 6 pushes the hinge mechanism of one side of the roof including the skylight 11 to rotate around the gutter 2 at the bottom of the slope, so as to realize the opening and closing of the entire roof on both sides.

[0026] Specifically, the greenhouse includes: a roof forming a pointed roof, a transmission mechanism, and a greenhouse frame. The roof includes: a skylight 11 made of, for example, aluminum, a covering film material for covering the skylight 11, and a skylight sealing strip. The transmission mechanism includes: a window opening motor 10, a window opening gear 9, a window opening rack 6, and a window opening arm 5. The greenhouse frame includes: columns 1, gutters 2 for drainage, composite beams 3, trusses 7, condensation collection troughs 4, and a top water trough 8.

[0027] Column 1 is made of double-sided hot-dip galvanized rectangular steel pipe, used for overall support and stability of the multi-span film greenhouse. Column 1 is connected to the gutter 2 at the top via connectors.

[0028] A composite beam 3 is horizontally supported above the column 1. A supporting beam column 12 is installed in the middle of the composite beam 3. The supporting beam column 12 is also connected to another gutter via a connector. Dew collection troughs 4 are installed on both sides above the supporting beam column 12. The dew collection troughs 4 are used to collect dew droplets formed on the inner surface of the covering material.

[0029] Thus, the two gutters, separated from each other, form the bottom supports of the opposite sides of the pointed roof. As shown in the figure, above the three (or n, where n is a natural number) side-by-side bottom supports, two (or n-1) parallel extended pointed roofs form the main body of the greenhouse roof.

[0030] A top drain trough 8 is fixedly installed on the top side of the truss 7 that supports the various pointed roof sections for top drainage. Skylights 11 on the opposite sides... Figure 1 The on / off state and the docking are as follows Figure 2 In the case of a pointed roof, the top water tank 8 is located on the lower side of the roof. Due to the temperature difference at the pointed roof, condensation on the inner wall of the roof will form water droplets that drip into the top water tank 8, reducing the amount of water that slides down the inner wall or falls directly downwards.

[0031] A window opening motor 10 is also fixedly installed on the truss 7 below the top water tank 8. The output end of the window opening motor 10 is connected to the window opening gear 9 (see...). Figure 3-5 To better illustrate the windowed rack on the right side, Figure 3The diagram only schematically simplifies the depiction of the window opening gear 9, which meshes with one end of the window opening rack 6, while the other end of the rack 6 is connected to the window opening arm 5. (See diagram for reference.) Figure 4 As shown, when the window-opening gear 9 rotates counterclockwise, the meshing left-side window-opening rack 6 will be driven downwards and to the right, thereby... Figure 1 The skylight 11 shown is driven in the closing direction until the left side of the roof is closed, at which point the skylight 11 preferably rests against the corresponding truss 7. Conversely, turning the opening gear 9 clockwise drives the skylight 11 in the opening direction away from the truss 7. Figure 1 The roof is shown in its open state. The window opening rack on the right can be driven by the window opening gear of another window opening motor in a similar manner. Of course... Figure 3 This is just an illustration and is not limited to this; it can also be like... Figure 5 The diagram shows a drive shaft connected to the output end of the window opening motor 10 via a coupling. Along the longitudinal direction (i.e., axial direction) of the drive shaft, multiple gears are spaced apart, so that the window opening racks 6 on the opposite roof sides mesh with the corresponding gears from the upper and lower sides of the drive shaft axis, respectively. Thus, the synchronous opening and closing of the opposite roof sides can be achieved simultaneously by using the forward and reverse rotation of the drive shaft.

[0032] The axial end of the window opening arm 5 is hinged to the gutter 2. The window opening arm 5 and the skylight 11 are linked together after being fixed by the hinge, forming an openable roof structure.

[0033] A sealing element is installed at the connection between the transmission mechanism and the greenhouse frame. Specifically, a skylight sealing strip is installed at the connection between the window arm 5 and the top water gutter 8. A skylight sealing strip is also installed at the connection between the window arm 5 and the gutter 2. This prevents rain leakage when the gable roof is closed.

[0034] As described above, the window opening motor 10 drives the window opening gear 9, which meshes with the window opening rack 6. The window opening rack 6 then links with the window opening arm 5, thereby opening and closing the greenhouse roof with the gutter 2 as the axis. When both sides of the roof are closed, the opposite sides of the roof located on both sides of the top water trough 8 form a pointed shape. In some embodiments, this is covered with a 0.3mm thick high-strength woven film material.

[0035] To achieve the linkage between the window opening rack 6 and the window opening arm 5, in some embodiments, when the window opening arm 5 is subjected to a pushing or pulling force from one end of the window opening rack 6, the other end of the window opening rack 6 is hinged to the window opening arm 5, allowing the window opening arm 5 to rotate around the shaft hinged to the gutter 2, thereby opening and closing the skylight 11. To ensure that the window opening rack 6 and the window opening gear 9 remain engaged, when the window opening rack 6 is configured as a straight rack, a guide rail (omitted here) for constraining the rack's movement along a set direction can be added to one end of the window opening rack 6. When the window opening rack 6 is configured as an arc-shaped rack, the arc size and curvature can be appropriately set according to a predetermined window opening angle range, so that the overall position and direction of the window opening rack 6 can change with the rotation of the window opening arm 5, while still maintaining engagement with the window opening gear 9. In this case, a corresponding guide mechanism can also be added to one end of the window opening rack 6.

[0036] In some embodiments, the greenhouse transmission mechanism adopts an electric gear rack opening method, with an opening height of about 1.5 meters, which can realize the overall opening of both roofs of the multi-span film greenhouse, realizing the rapid circulation and exchange of air inside and outside the greenhouse, thereby achieving the effect of cooling and dehumidification.

[0037] In some embodiments, the multi-span membrane greenhouse also has corresponding supporting facilities, including a natural ventilation system, a ventilation and cooling system, a shading system, a water and fertilizer system, a cultivation trough system, an intelligent environmental control system, and a power distribution system.

[0038] The advantages of this invention are: the greenhouse roof can be opened to provide natural light for crop growth, greatly increasing the ventilation area and quickly removing hot and humid air from the greenhouse, thus achieving rapid air exchange between the inside and outside of the greenhouse.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-span membrane greenhouse with an openable, pointed roof, characterized in that, include: The roof, transmission mechanism, and greenhouse frame constitute a pointed roof. The transmission mechanism includes a window opening motor (10), a window opening gear (9), a window opening rack (6), and a window opening arm (5). The greenhouse frame includes a gutter (2) for drainage and a truss (7) for supporting the pointed roof. Each side of the pointed roof is provided with an openable and closable skylight (11) that is linked to the window opening arm (5). The shaft end of the window opening arm (5) is hinged to the gutter (2). The window opening motor (10) is fixedly installed on the truss (7). The output end of the window opening motor (10) is connected to the window opening gear (9). The window opening gear (9) meshes with one end of the window opening rack (6), and the other end of the window opening rack (6) is hinged to the window opening arm (5).

2. The multi-span membrane greenhouse with an openable pointed roof according to claim 1, characterized in that, The greenhouse frame also includes columns (1), which are connected to gutters (2) via connectors.

3. The roof-openable pointed-roof multi-span membrane greenhouse according to claim 2, characterized in that, A composite beam (3) is horizontally erected above the column (1). A supporting beam column (12) is set in the middle of the composite beam (3). The supporting beam column (12) is connected to another gutter through a connector above it. The gutter (2) and the other gutter respectively constitute the bottom support of the opposite side of the roof of the pointed roof.

4. The multi-span membrane greenhouse with an openable pointed roof as described in claim 3, characterized in that, A condensation collection trough (4) is installed on at least one side above the supporting beam (12).

5. The multi-span greenhouse with an openable pointed roof according to claim 1, characterized in that, A top water trough (8) is fixedly installed on the top side of the truss (7). When the skylight (11) on the opposite side closes from the open state and is connected to form a pointed roof state, the top water trough (8) is located on the side below the roof.

6. The multi-span membrane greenhouse with an openable pointed roof according to claim 1, characterized in that, A drive shaft is provided that is connected to the output end of the window opening motor (10) via a coupling. Multiple gears are provided along the longitudinal direction of the drive shaft. The window opening racks (6) on the opposite side of the roof mesh with the corresponding gears from the upper and lower sides of the drive shaft axis, respectively.

7. The multi-span membrane greenhouse with an openable pointed roof according to claim 1, characterized in that, A sealing element is provided at the connection between the transmission mechanism and the greenhouse frame.

8. The multi-span membrane greenhouse with an openable pointed roof according to claim 1, characterized in that, The roof is covered with a 0.3mm thick high-strength woven membrane.

9. The multi-span membrane greenhouse with an openable pointed roof according to claim 1, characterized in that, The window rack (6) is configured as a straight rack, and a guide rail is provided on one end of the window rack (6) to constrain the window rack (6) to move in a set direction; or, the window rack (6) is configured as an arc rack, having an arc dimension and curvature that can still mesh with the window gear (9) when the overall position and direction of the window rack (6) change with the rotation of the window arm (5), and a corresponding guide mechanism is provided on one end of the window rack (6).

10. The multi-span membrane greenhouse with an openable pointed roof according to claim 1, characterized in that, Above n parallel bottom supports, n-1 parallel extended pointed roofs constitute the main roof structure of the greenhouse.

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