Greenhouse ventilation device

Abstract

The utility model relates to the field of greenhouse ventilation, in particular to a greenhouse ventilation device. The greenhouse ventilation device comprises a greenhouse body, the greenhouse body is composed of a framework, a plastic film wrapping the framework and a fan fixed to the framework, the greenhouse ventilation device further comprises a plurality of slow flow assemblies, the slow flow assemblies are close to an opening of the greenhouse body, a slow flow chamber is formed by the slow flow assemblies and the opening of the greenhouse body, and each slow flow assembly comprises a rubber curtain. The multiple rubber curtains can seal the slow flow chamber and a channel of a planting area in the greenhouse body. And the winding and unwinding assembly is installed on the framework, the winding and unwinding assembly comprises a winding shaft, the flow slowing assemblies are all installed on the winding shaft, and the rubber curtain is wound and unwound through rotation of the winding shaft. According to the greenhouse ventilation device provided by the utility model, the plurality of rubber curtains are arranged at the position close to the opening of the greenhouse body, so that airflow entering the greenhouse can be buffered, and crops are prevented from being directly influenced.

Description

Technical Field

[0001] This utility model relates to the field of greenhouse ventilation, and in particular to a greenhouse ventilation device. Background Technology

[0002] A greenhouse is a facility used for growing crops. It provides a suitable growing environment for crops by artificially controlling environmental conditions (such as temperature, humidity, and light).

[0003] Greenhouse ventilation is crucial for ensuring the healthy growth of crops inside. Proper ventilation design and management can effectively regulate temperature, humidity, and carbon dioxide concentration within the greenhouse, thereby creating a suitable growing environment. In environments with high airflow, the greenhouse openings can be opened directly to allow air exchange between the outside and inside, achieving ventilation. Conversely, in environments with low airflow, many greenhouses have fans installed on the sides to accelerate air exchange.

[0004] When using fans to assist ventilation, the main method is exhaust, that is, drawing out the gas inside the greenhouse and introducing fresh air at the air inlet. In this process, because the air inlet is at one end and there are multiple air outlets, the wind speed at the air inlet is too high, which can cause mechanical damage to some crops near the air inlet (such as leaf tearing, stem breakage, etc.), thus affecting crop production.

[0005] Therefore, it is necessary to provide a new greenhouse ventilation device to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a greenhouse ventilation device.

[0007] The greenhouse ventilation device provided by this utility model includes a greenhouse body, which consists of a frame, a plastic film covering the outside of the frame, and a fan fixed to the frame. It also includes:

[0008] The slow-flow component, comprising multiple components, is located near the opening of the greenhouse body and forms a slow-flow chamber with the opening of the greenhouse body. The slow-flow component includes a rubber curtain, and multiple rubber curtains can seal the passage between the slow-flow chamber and the planting area inside the greenhouse body.

[0009] The rewinding assembly is mounted on the frame and includes a horizontally arranged and rotatable winding shaft. All the flow control components are mounted on the winding shaft, and the rewinding and unwinding of the rubber curtain is achieved by rotating the winding shaft.

[0010] Preferably, the flow control component further includes clamps, which are in two sets, each in a semi-cylindrical shape, and can be sleeved and fixed on the take-up shaft and secured with bolts. Two symmetrically arranged foot plates are welded and fixed to the outer circumference of one set of clamps, and a positioning rod is welded and fixed between the two foot plates. The positioning rod and the clamp have an insertion port.

[0011] One end of the rubber curtain passes through the insertion port and is fitted onto the positioning rod.

[0012] Preferably, the other end of the rubber curtain has a sandwich layer, and a lead strip is placed inside the sandwich layer.

[0013] Preferably, one side of the adhesive curtain also has Velcro, with the female and female Velcro pieces arranged vertically. When the female and female Velcro pieces are bonded together, the drooping length of the adhesive curtain is half of its original length.

[0014] Preferably, the take-up and unwind assembly further includes two sets of symmetrically arranged fixing frames, the fixing frames are bolted to the frame, a positioning plate is welded to one side of the fixing frame, and the take-up shaft is rotatably connected to the two positioning plates;

[0015] A motor is fixed on the positioning plate in one of the sets of fixed frames, and a concentrically arranged drive sprocket is fixed to the output end of the motor;

[0016] One end of the take-up shaft is also fixed with a concentrically arranged driven sprocket, and the driving sprocket and the driven sprocket are connected by a transmission chain.

[0017] Preferably, the diameter of the driving sprocket is larger than the diameter of the driven sprocket.

[0018] Compared with related technologies, the greenhouse ventilation device provided by this utility model has the following beneficial effects:

[0019] This utility model provides a greenhouse ventilation device in which multiple rubber curtains are installed near the opening of the greenhouse body, thereby buffering the airflow entering the greenhouse to avoid direct impact on crops. Attached Figure Description

[0020] Figure 1 A schematic diagram of a preferred embodiment of the greenhouse ventilation device provided by this utility model;

[0021] Figure 2 This is a schematic diagram of the skeleton structure shown in this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the flow-retarding component shown in this utility model;

[0023] Figure 4This is a schematic diagram of the clamp structure shown in this utility model;

[0024] Figure 5 As shown in this utility model Figure 3 Enlarged structural diagram at point A;

[0025] Figure 6 This is a schematic diagram of the structure of the retractable assembly shown in this utility model.

[0026] The following components are labeled in the diagram: 1. Frame; 2. Plastic film; 3. Fan; 4. Flow control component; 41. Clamp; 42. Foot plate; 43. Positioning rod; 44. Glue curtain; 45. Interlayer; 46. Lead strip; 47. Velcro; 5. Retraction component; 51. Fixing frame; 52. Positioning plate; 53. Motor; 54. Drive sprocket; 55. Rewind shaft; 56. Driven sprocket; 57. Drive chain. Detailed Implementation

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 this utility model.

[0028] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] 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. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0032] Please see Figures 1 to 6 This utility model provides a greenhouse ventilation device, which includes a greenhouse body. The greenhouse body consists of a frame 1, a plastic film 2 covering the outside of the frame 1, and a fan 3 fixed to the frame 1. It also includes:

[0033] Slow-flow component 4, there are multiple slow-flow components 4, close to the opening of the greenhouse body, and forming a slow-flow chamber with the opening of the greenhouse body. The slow-flow component 4 includes a plastic curtain 44, and multiple plastic curtains 44 can seal the passage between the slow-flow chamber and the planting area inside the greenhouse body.

[0034] The take-up and release assembly 5 is installed on the frame 1. The take-up and release assembly 5 includes a horizontally set take-up shaft 55 that can rotate on a fixed axis. The flow control assembly 4 is installed on the take-up shaft 55. The rubber curtain 44 is taken up and released by rotating the take-up shaft 55.

[0035] It should be noted that: In this device, multiple fans 3 are installed on the frame 1. When running, they extract the gas inside the greenhouse, while the gas outside enters through the openings reserved in the plastic film 2, realizing the exchange of gas between the inside and outside (the plastic film 2 is semi-cylindrical with the frame 1, with one end closed and the other end open for farmers to enter and exit. The end of the slow-flow component 4 in the figure is the opening. For the convenience of showing the slow-flow component 4, the plastic film 2 at the opening is not shown in the figure).

[0036] There are multiple flow-slowing components 4, with the rubber curtain 44 as the main buffer structure. There are gaps between adjacent rubber curtains 44 to allow airflow to enter, while also buffering the airflow. Therefore, the airflow entering the greenhouse will not harm the crops and ensure the normal growth of the crops.

[0037] The flow control components 4 are all installed on the winding shaft 55. The winding shaft 55 can roll up and release the plastic curtain 44 by rotating. Therefore, when the greenhouse is not being ventilated, the plastic curtain 44 can be rolled up to avoid affecting the entry and exit of vegetable farmers.

[0038] In the embodiments of this utility model, please refer to Figure 4 and Figure 4 The slow-flow component 4 also includes clamps 41, which are in two sets, both of which are semi-cylindrical and can be sleeved and fixed on the take-up shaft 55 and fixed with bolts. Two symmetrically arranged foot plates 42 are welded and fixed to the outer circumference of one set of clamps 41, and a positioning rod 43 is welded and fixed between the two foot plates 42. There is an insertion port between the positioning rod 43 and the clamp 41.

[0039] One end of the plastic curtain 44 passes through the insertion port and is fitted onto the positioning rod 43.

[0040] It should be noted that in the flow control component 4, the clamp 41 is detachably fixed to the take-up shaft 55, and the rubber curtain 44 is fixed to the clamp 41. Each flow control component 4 is set independently, so when any rubber curtain 44 is damaged, it can be replaced accordingly, and the replacement operation is relatively quick and convenient.

[0041] In the embodiments of this utility model, please refer to Figure 5 The other end of the plastic curtain 44 has a layer 45, and a lead strip 46 is placed inside the layer 45.

[0042] It should be noted that the lead strip 46 can act as a counterweight, making the rubber curtain 44 more wind-resistant and its buffering effect on airflow more obvious.

[0043] In the embodiments of this utility model, please refer to Figure 3 The adhesive curtain 44 also has a Velcro 47 on one side. The female and female Velcro 47 are arranged vertically. When the female and female Velcro 47 are glued together, the hanging length of the adhesive curtain 44 is half of its original length.

[0044] It should be noted that when the female and female adhesive strips on the adhesive curtain 44 are bonded together, the length of the entire adhesive curtain 44 is reduced by half to reduce the degree of sealing of the air duct by the adhesive curtain 44. Therefore, when it is necessary to increase the airflow, multiple adhesive curtains 44 can be adjusted in sequence to increase the air intake.

[0045] In the embodiments of this utility model, please refer to Figure 6 The take-up and take-down assembly 5 also includes two sets of symmetrically arranged fixing frames 51. The fixing frames 51 are bolted to the frame 1. A positioning plate 52 is welded to one side of the fixing frame 51. The take-up shaft 55 is rotatably connected to the two positioning plates 52.

[0046] A motor 53 is fixed on a positioning plate 52 in one of the fixed frames 51, and a concentrically arranged drive sprocket 54 is fixed to the output end of the motor 53.

[0047] One end of the winding shaft 55 is also fixed with a concentric driven sprocket 56, and the driving sprocket 54 and the driven sprocket 56 are connected by a transmission chain 57.

[0048] The diameter of the driving sprocket 54 is larger than the diameter of the driven sprocket 56.

[0049] It should be noted that in the take-up and release assembly 5, the motor 53 drives the take-up shaft 55 to rotate through the sprocket and chain drive, and then uses the take-up shaft 55 to take up or release the plastic curtain 44.

[0050] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0051] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A greenhouse ventilation device, comprising a greenhouse body, the greenhouse body consisting of a frame (1), a plastic film (2) covering the outside of the frame (1), and a fan (3) fixed to the frame (1), characterized in that, Also includes: Slow-flow component (4), there are multiple slow-flow components (4), which are close to the opening of the greenhouse body and form a slow-flow chamber with the opening of the greenhouse body. The slow-flow component (4) includes a rubber curtain (44), and multiple rubber curtains (44) can close the passage between the slow-flow chamber and the planting area inside the greenhouse body. The take-up and release assembly (5) is installed on the frame (1). The take-up and release assembly (5) includes a horizontally set take-up shaft (55) that can rotate on a fixed axis. The slow flow assembly (4) is installed on the take-up shaft (55). The rubber curtain (44) is taken up and released by rotating the take-up shaft (55).

2. The greenhouse ventilation device according to claim 1, characterized in that, The slow-flow component (4) also includes clamps (41), which are in two sets, both of which are semi-cylindrical and can be sleeved and fixed on the take-up shaft (55) and fixed with bolts. Two symmetrically arranged foot plates (42) are welded and fixed on the outer circumference of one set of clamps (41), and a positioning rod (43) is welded and fixed between the two foot plates (42). There is an insertion port between the positioning rod (43) and the clamp (41). One end of the rubber curtain (44) passes through the insertion port and is fitted onto the positioning rod (43).

3. The greenhouse ventilation device according to claim 2, characterized in that, The other end of the plastic curtain (44) has a layer (45), and a lead strip (46) is placed inside the layer (45).

4. The greenhouse ventilation device according to claim 3, characterized in that, The adhesive curtain (44) also has a Velcro (47) on one side. The female and female Velcro (47) are arranged vertically. When the female and female Velcro are glued together, the drooping length of the adhesive curtain (44) is half of its original length.

5. The greenhouse ventilation device according to claim 1, characterized in that, The take-up and take-down assembly (5) also includes two sets of symmetrically arranged fixing frames (51). The fixing frames (51) are bolted to the frame (1). A positioning plate (52) is welded to one side of the fixing frame (51). The take-up shaft (55) is rotatably connected to the two positioning plates (52). A motor (53) is fixed on a positioning plate (52) in one of the sets of fixing frames (51), and a concentric drive sprocket (54) is fixed to the output end of the motor (53). One end of the winding shaft (55) is also fixed with a concentric driven sprocket (56), and the driving sprocket (54) and the driven sprocket (56) are connected by a transmission chain (57).

6. The greenhouse ventilation device according to claim 5, characterized in that, The diameter of the driving sprocket (54) is larger than the diameter of the driven sprocket (56).

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