Integrated dynamic sunshade device for greenhouse

Abstract

The utility model relates to the technical field of greenhouse sunshade, and discloses a greenhouse integrated dynamic sunshade device which comprises a greenhouse body, a plurality of cross beams are arranged in the greenhouse body, a plurality of supporting stand columns are arranged at the lower end of each cross beam, and an outer sunshade device and an inner sunshade device are arranged on the greenhouse body. The outer sunshade device is arranged at the top of the greenhouse body, the inner sunshade device is arranged in the greenhouse body and located below the cross beam, the outer sunshade device and the inner sunshade device are each provided with an extensible sunshade curtain, and the unfolding directions of the sunshade curtains in the outer sunshade device and the inner sunshade device are perpendicular to each other. According to the utility model, a double-layer structure of external sunshade and internal sunshade is adopted, and linkage adjustment is realized through gears, hydraulic transmission and intelligent control, so that the illumination intensity is controlled as required, the heat preservation and moisture preservation effects are good, the response is quick, the crop yield is increased, the energy is saved, and the labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of greenhouse shading technology, specifically to an integrated dynamic shading device for greenhouses. Background Technology

[0002] Currently, the large-scale multi-span greenhouses imported from abroad to my country are expensive and technically complex. Moreover, given my country's vast territory and diverse climates, these single-type greenhouses are difficult to adapt to the different seasonal requirements of various regions.

[0003] There is an optimal temperature and humidity range for crop growth, and the optimal temperature and humidity will change at different growth stages. In different seasons such as spring, autumn, summer, and winter, the temperature inside the greenhouse is usually kept within a certain range by adjusting the opening of the top or side roll film. However, simple single-layer multi-span plastic greenhouses have poor heat preservation and cold protection. The temperature and humidity requirements of different parts in large greenhouses may be different, and manual adjustment has a lag, usually making it impossible to roll up or unroll in time, which affects crop growth.

[0004] Therefore, a greenhouse shading mechanism with good heat preservation and moisture retention, flexible adjustment, and rapid response is needed. Utility Model Content

[0005] The technical problem this invention aims to solve is the poor heat preservation and moisture retention performance of existing large-scale multi-span glass greenhouses, and the inconvenience of temperature and humidity regulation.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is to provide an integrated dynamic shading device for greenhouses, including a greenhouse body. The greenhouse body is provided with multiple crossbeams, and each crossbeam is provided with multiple supporting columns at its lower end. The greenhouse body is provided with an external shading device and an internal shading device. The external shading device is located at the top of the greenhouse body, and the internal shading device is located inside the greenhouse body and below the crossbeams. Both the external and internal shading devices are provided with unfoldable shading curtains, and the unfolding directions of the shading curtains in the external and internal shading devices are perpendicular to each other.

[0007] Optionally, the external shading device includes an external shading curtain, a support frame, a winding shaft, and an unfolding shaft. The top of the greenhouse body is provided with a gutter. The support frame is connected to the outer side of the top of the greenhouse body and the gutter. Multiple winding shafts and unfolding shafts are provided and are respectively located at both ends of the support frame. A steel wire rope is wound on the unfolding shaft. The external shading curtain is wound on the winding shaft, and one end of the external shading curtain is connected to the steel wire rope. A motor is provided on both the winding shaft and the unfolding shaft. The output shaft of the motor is gear-driven connected to the winding shaft and the unfolding shaft.

[0008] Optionally, the external sunshade device further includes aluminum alloy tracks, which are parallel to each other and evenly spaced above the support frame. Multiple rewinding and unfolding shafts at both ends of the support frame are respectively located between two adjacent aluminum alloy tracks and perpendicular to the aluminum alloy tracks. The two sides of the external sunshade curtain are located in the aluminum alloy tracks.

[0009] Optionally, the outer sunshade curtain is provided with rubber reinforcing ribs on both sides, the rubber reinforcing ribs are provided in the aluminum alloy track, and one end of the outer sunshade curtain connecting the steel wire rope is fixed in the aluminum alloy track by clip springs on both sides.

[0010] Optionally, the support frame is equipped with a temperature sensor, and the external shading curtain is an aluminum foil shading curtain or a high-density polyethylene mesh.

[0011] Optionally, the internal shading device includes an internal shading curtain and a curtain box. Multiple curtain boxes are provided and are located below the crossbeams at the supporting columns. A stainless steel wire rope is connected to the top of each curtain box, with the other end of the wire rope connected to the top of the greenhouse body. The internal shading curtains are stacked in the curtain boxes, with one end extending out of the curtain box and connected to a fixed roller. The extension direction of the internal shading curtain is perpendicular to the sliding direction of the external shading curtain along the aluminum alloy track and parallel to the extension direction of the crossbeam. Hydraulic pumps are provided at both ends of the curtain box, and hydraulic push rods are connected to the hydraulic pumps. The other end of each hydraulic push rod is connected to the fixed roller.

[0012] Optionally, a limiting plate is provided between the supporting columns below the same crossbeam, and the limiting plate is in close contact with the fixed roller.

[0013] Optionally, the inner sunshade curtain is made of multiple curtains spliced ​​together, with silicone sealing strips at the seams. The material of the inner sunshade curtain is non-woven fabric or aluminum foil curtain.

[0014] Optionally, the fabric box is equipped with a humidity sensor and a temperature sensor.

[0015] Optionally, a control box is provided inside the main body of the greenhouse, and the temperature sensor, humidity sensor, hydraulic pump and motor are all connected to the control box.

[0016] In summary, this utility model adopts a dual-layer structure of external shading + internal shading, and through gear and hydraulic transmission and intelligent control linkage adjustment, it realizes on-demand control of light intensity, good heat preservation and moisture retention effect, and rapid response, thereby increasing crop yield, saving energy and reducing labor costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the integrated dynamic shading device for greenhouses of this utility model;

[0018] Figure 2This is a schematic diagram of the internal structure of the integrated dynamic shading device for greenhouses of this utility model;

[0019] Figure 3 This is a frontal cross-sectional view of the integrated dynamic shading device for greenhouses of this utility model.

[0020] In the diagram: 1. Greenhouse main body; 2. Horizontal beam; 3. Supporting column; 4. External shading curtain; 5. Support frame; 6. Rewinding shaft; 7. Unwinding shaft; 8. Aluminum alloy track; 9. Internal shading curtain; 10. Fabric box; 11. Stainless steel wire rope; 12. Fixing roller; 13. Hydraulic pump; 14. Hydraulic push rod; 15. Limiting plate. Detailed Implementation

[0021] The following combination Figure 1-3 The present invention will be described in further detail below.

[0022] This utility model discloses an integrated dynamic shading device for greenhouses, referring to... Figure 1 The greenhouse includes a main body 1, which contains multiple crossbeams 2. Each crossbeam 2 has multiple supporting columns 3 at its lower end. The main body 1 is equipped with an external shading device and an internal shading device. The external shading device is located at the top of the main body 1, and the internal shading device is located inside the main body 1 and below the crossbeams 2. Both the external and internal shading devices are equipped with unfoldable shading curtains, and the unfolding directions of the shading curtains in the external and internal shading devices are perpendicular to each other.

[0023] In a further implementation, refer to Figure 1 The external shading device includes an external shading curtain 4, a support frame 5, a winding shaft 6, and an unfolding shaft 7. A gutter is provided on the top of the greenhouse body 1. The support frame 5 is connected to the outer side of the top of the greenhouse body 1 and the gutter. Multiple winding shafts 6 and unfolding shafts 7 are provided, located at both ends of the support frame 5. A steel wire rope is wound onto the unfolding shaft 7. The external shading curtain 4 is wound onto the winding shaft 6, and a clamp is provided at one end of the external shading curtain 4 to fix the end of the external shading curtain 4. The clamp is connected to the steel wire rope. Motors are provided on both the winding shaft 6 and the unfolding shaft 7, and the output shafts of the motors are connected to the winding shaft 6 and the unfolding shaft 7 via gear transmission. The device also includes aluminum alloy tracks 8, which are parallel to each other and evenly spaced above the support frame 5. Multiple rewinding shafts 6 and unfolding shafts 7 at both ends of the support frame 5 are respectively located between two adjacent aluminum alloy tracks 8 and are perpendicular to the aluminum alloy tracks 8. The outer sunshade curtain 4 is located in the aluminum alloy tracks 8 on both sides. Rubber reinforcing ribs are provided on both sides of the outer sunshade curtain 4, and the rubber reinforcing ribs are located in the aluminum alloy tracks 8. One end of the outer sunshade curtain 4 connected to the steel wire rope is fixed in the aluminum alloy tracks 8 by spring clips on both sides. A temperature sensor is provided on the support frame 5. The outer sunshade curtain is an aluminum foil shading curtain or a high-density polyethylene mesh.

[0024] Specifically, when the external shading device is in use, the temperature sensor detects the outside temperature. When the temperature exceeds the threshold, the control box controls the motor connected to the unfolding shaft 7 to start. The unfolding shaft 7 pulls the external shading curtain 4 to unfold it and complete the shading. After the temperature drops, the control box controls the motor connected to the rewinding shaft 6 to start and rewind the external shading curtain 4. In addition, when the span of the glass greenhouse is too large, the motors at both ends can be turned on at the same time when rewinding or unfolding to make the external shading curtain 4 roll up or unfold more smoothly.

[0025] In other embodiments, both ends of the support frame 5 are provided with a retractable shaft 6 and an unfolding shaft 7, which are arranged in a cross pattern so that the outer sunshade curtain 4 can be unfolded or rolled up in both directions, thereby adjusting the sunshade area as needed.

[0026] In a further implementation, refer to Figure 2 and Figure 3 The internal shading device includes an internal shading curtain 9 and a curtain box 10. Multiple curtain boxes 10 are provided, each located below the crossbeam 2 at the supporting column 3. A stainless steel wire rope 11 is connected to the top of the curtain box 10, with the other end of the rope connected to the top of the greenhouse body 1. The internal shading curtain 9 is stacked within the curtain box 10, with one end extending out of the box and connected to a fixing roller 12. The extension direction of the internal shading curtain 9 is perpendicular to the sliding direction of the external shading curtain 4 along the aluminum alloy track 8. Parallel to the extension direction of the crossbeam 2, the fabric box 10 is equipped with hydraulic pumps 13 at both ends, and hydraulic push rods 14 are connected to the hydraulic pumps 13. The other end of the hydraulic push rods 14 is connected to the fixed rollers 12. Limiting plates 15 are provided between the supporting columns 3 under the same crossbeam 2, and the limiting plates 15 are in close contact with the fixed rollers 12. The inner sunshade curtain 9 is made of multiple curtains spliced ​​together, and silicone sealing strips are provided at the curtain seams. The material of the inner sunshade curtain 9 is non-woven fabric or aluminum foil curtain. The fabric box 10 is equipped with humidity sensors and temperature sensors.

[0027] Specifically, when the internal shading device is in use, the temperature sensor and humidity sensor detect the temperature and humidity inside the greenhouse body 1. When the temperature is low, the internal shading curtain 9 is unfolded; when the humidity is high, the internal shading curtain 9 is retracted. When the internal shading curtain 9 is unfolded, the control box controls the hydraulic pump to run, causing the hydraulic push rod 14 to extend, thereby causing the fixed roller 12 to drive the internal shading curtain 9 to unfold. The limiting plate 15 limits the fixed roller 12 between the crossbeam 2 and the limiting plate 15 to prevent the internal shading curtain 9 from shifting. When the internal shading curtain 9 is retracted, the hydraulic pump runs, causing the hydraulic push rod 14 to retract.

[0028] In a further embodiment, a control box is provided inside the main body of the greenhouse 1. Temperature sensors, humidity sensors, hydraulic pumps and motors are all connected to the control box. The control box is used to receive temperature and humidity signals detected by the sensors and control the motors or hydraulic pumps according to the temperature and humidity signals, thereby controlling the expansion or contraction of the inner and outer shading devices. The control box is provided with manual operation buttons for each motor and hydraulic pump, which can be manually operated.

[0029] This invention provides a double-layer protection for greenhouses, including insulation and shading. In summer, when temperatures are high, the control box starts the motor connected to the unfolding shaft 7, which pulls the outer shading curtain 4 to unfold, completing the outer shading. The control box also controls the hydraulic pump to push out the hydraulic push rod 14, which in turn causes the fixed roller 12 to unfold the inner shading curtain 9 for outer shading. In winter, when temperatures are low, both layers are unfolded for double-layer insulation, reducing heat loss. At the same time, when the sunlight is sufficient but not irritating, a single layer of shading can be applied, allowing for on-demand control of light intensity and increasing crop yield.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A greenhouse integrated dynamic shading device, characterized in that, The greenhouse includes a main body (1), which has multiple crossbeams (2) inside. Each crossbeam (2) has multiple supporting columns (3) at its lower end. The main body (1) is equipped with an external shading device and an internal shading device. The external shading device is located at the top of the main body (1), and the internal shading device is located inside the main body (1) and below the crossbeams (2). Both the external and internal shading devices are equipped with unfoldable shading curtains, and the unfolding directions of the shading curtains in the external and internal shading devices are perpendicular to each other.

2. The greenhouse integrated dynamic shading device according to claim 1, characterized in that, The external shading device includes an external shading curtain (4), a support frame (5), a winding shaft (6), and an unfolding shaft (7). The top of the greenhouse body (1) is provided with a gutter. The support frame (5) is connected to the outside of the top of the greenhouse body (1) and the gutter. Multiple winding shafts (6) and unfolding shafts (7) are provided and are respectively located at both ends of the support frame (5). A steel wire rope is wound on the unfolding shaft (7). The external shading curtain (4) is wound on the winding shaft (6), and one end of the external shading curtain (4) is connected to the steel wire rope. A motor is provided on both the winding shaft (6) and the unfolding shaft (7). The output shaft of the motor is connected to the winding shaft (6) and the unfolding shaft (7) by gear transmission.

3. The greenhouse integrated dynamic shading device according to claim 2, characterized in that, The external sunshade device also includes aluminum alloy tracks (8), which are parallel to each other and evenly spaced above the support frame (5). Multiple rewinding shafts (6) and unfolding shafts (7) at both ends of the support frame (5) are respectively located between two adjacent aluminum alloy tracks (8) and perpendicular to the aluminum alloy tracks (8). The two sides of the external sunshade curtain (4) are located in the aluminum alloy tracks (8).

4. The greenhouse integrated dynamic shading device according to claim 3, characterized in that, The outer sunshade curtain (4) is provided with rubber reinforcing ribs on both sides. The rubber reinforcing ribs are located in the aluminum alloy track (8), and one end of the outer sunshade curtain (4) connected to the steel wire rope is fixed in the aluminum alloy track (8) by clip springs on both sides.

5. The greenhouse integrated dynamic shading device according to claim 2, characterized in that, The support frame (5) is equipped with a temperature sensor, and the outer shading curtain is an aluminum foil shading curtain or a high-density polyethylene net.

6. The greenhouse integrated dynamic shading device according to claim 5, characterized in that, The internal shading device includes an internal shading curtain (9) and a cloth box (10). Multiple cloth boxes (10) are provided and are located below the crossbeam (2) at the supporting column (3). A stainless steel wire rope (11) is connected to the top of the cloth box (10). The other end of the stainless steel wire rope (11) is connected to the top of the greenhouse body (1). The internal shading curtain (9) is stacked in the cloth box (10). One end of the internal shading curtain (9) extends out of the cloth box (10) and is connected to a fixed roller (12). The extension direction of the internal shading curtain (9) is perpendicular to the sliding direction of the external shading curtain (4) along the aluminum alloy track (8) and parallel to the extension direction of the crossbeam (2). Hydraulic pumps (13) are provided at both ends of the cloth box (10). A hydraulic push rod (14) is connected to the hydraulic pump (13). The other end of the hydraulic push rod (14) is connected to the fixed roller (12).

7. A greenhouse integrated dynamic shading device according to claim 6, characterized in that, A limiting plate (15) is provided between the supporting columns (3) below the same crossbeam (2), and the limiting plate (15) is in close contact with the fixed roller (12).

8. The greenhouse integrated dynamic shading device according to claim 6, characterized in that, The inner sunshade curtain (9) is made of multiple curtains spliced ​​together, and silicone sealing strips are provided at the seams of the curtains. The material of the inner sunshade curtain (9) is non-woven fabric or aluminum foil curtain.

9. The greenhouse integrated dynamic shading device according to claim 6, characterized in that, The cloth box (10) is equipped with a humidity sensor and a temperature sensor.

10. The greenhouse integrated dynamic shading device according to claim 9, characterized in that, The main body of the greenhouse (1) is equipped with a control box, and the temperature sensor, humidity sensor, hydraulic pump and motor are all connected to the control box.

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