Greenhouse capable of being automatically opened and closed by utilizing solar energy

Abstract

The utility model discloses a greenhouse capable of being automatically opened and closed through solar energy. The greenhouse comprises a greenhouse body, a contraction device, an opening and closing fixing device and a vertical fixing device. The body comprises a water storage tank and a rain baffle, and the water storage tank is fixedly connected with the rain baffle. The rain baffle comprises a ceiling frame and a transparent plastic film, and sunlight can directly irradiate crops through the transparent plastic film. One end of the body is hinged to the vertical fixing device to play a role in opening and closing. One end of the retracting device is fixedly connected with the frame, and the other end is fixedly connected with the vertical fixing device. One end of the opening and closing fixing device is fixed to the ceiling frame, and the other end of the opening and closing fixing device is fixed to the vertical fixing device which is directly inserted into the ground. According to the utility model, unmanned operation can be realized, and crops can be protected by intelligent automatic opening and closing.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent shape memory alloy application, in particular to a greenhouse that automatically opens and closes using solar energy. Background Art

[0002] The greenhouse is mainly composed of a roof, a water storage closing device, a fixing device and a solar self-retracting opening device. It is mainly used to protect various vegetable fields from bad weather.

[0003] At present, traditional planting fields are divided into indoor and outdoor. Although indoor planting can avoid the influence of bad weather, its expensive cost, temperature regulation and complicated air circulation are not suitable for all farmers. Although outdoor planting fields are suitable for most farmers, they are greatly affected by the weather, which will cause some losses and have a greater economic impact on ordinary farmers. Utility Model Content

[0004] Purpose of the utility model: The utility model provides a detachable greenhouse that automatically opens and closes using solar energy and is suitable for various situations. This device can realize unmanned operation and intelligent automatic opening and closing to protect crops.

[0005] Technical solution: The utility model proposes a greenhouse that automatically opens and closes using solar energy, including a greenhouse body, a contraction device and an opening and closing fixing device; the greenhouse body includes a water storage tank and a rain shield fixedly connected to the water storage tank, and the roof frame is hinged with a plurality of first vertical fixing devices; the opening and closing fixing device includes a frame buckle, a third vertical fixing device and a vertical buckle, one end of the frame buckle is fixedly connected to the roof frame, and the other end is a free end that contacts and snaps with one end of the vertical buckle, and the other end of the vertical buckle is fixedly inclined with the upper end of the third vertical fixing device The contraction device comprises a fixed base, a transparent plate, a reflective mirror, a hollow steel pipe and a shape memory alloy rib; the fixed base is fixedly connected to the ceiling frame, one end of the shape memory alloy rib is fixed to the first rib fixing device, and the other end is fixed to the second rib fixing device through the hollow steel pipe, the first rib fixing device is connected to the fixed base, and the second rib fixing device is fixed to the second fixing device; the transparent plate is connected to the reflective mirror, and the reflective mirror is connected to the hollow steel pipe through a steel pipe fixing device;

[0006] When water accumulates in the water tank, it drives the ceiling frame to rotate downward, and the frame buckles are separated from the vertical buckles. The downward rotation of the ceiling frame drives the fixed base to rotate downward, and the shape memory alloy ribs are stretched to the martensite state, and the greenhouse is in a closed state; on sunny days, the sunlight passes through the transparent plate and shines on the reflective mirror surface and then reflects to the hollow steel pipe. After the temperature of the hollow steel pipe rises, the heat is conducted to the shape memory alloy ribs. The shape memory alloy ribs shrink to the austenite state due to the heat. The contraction of the shape memory alloy ribs drives the ceiling frame to rotate upward through the fixed base until the frame buckles contact and engage with the vertical buckles. At this time, the greenhouse is in an open state.

[0007] Preferably, the ceiling frame is connected to the first vertical fixing device via a hinge.

[0008] Preferably, the hinge comprises a circular sphere and a semicircular wrapping member, and the semicircular wrapping member wraps the circular sphere for rotation.

[0009] Preferably, a circular sphere is provided on the first vertical fixing device, and the semicircular wrapping piece is fixedly connected to the ceiling frame.

[0010] Preferably, the free end of the frame buckle and one end of the vertical buckle in contact with the free end are both triangular in shape.

[0011] Preferably, one end of the second fixing device is fixedly connected to the second reinforcement fixing device, and the other end is inserted into the ground.

[0012] Preferably, the rain shield comprises a ceiling frame and a transparent film, and the transparent film is fixedly connected to the ceiling frame.

[0013] Beneficial effects: The present invention realizes the automatic opening and closing of the greenhouse through the heat contraction of shape memory alloy reinforcement and the use of the gravitational potential energy brought by the accumulated rain in the water reservoir when it rains. On rainy days, and especially on severe days with heavy rain, the water storage trough quickly accumulates rainwater, and due to the lever principle, one end of the roof is closed downward, which can protect crops. On sunny days, due to the sunlight, the contraction device is immediately shortened, which applies an upward force to the roof. Since the water in the water storage tank is poured out when the roof is closed, this force does not need to be too large and will cause the fixing device to close, so that the greenhouse is in an open state for a long time. At this time, the crops can be directly exposed to the sunlight and fully carry out photosynthesis. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model in an open state;

[0015] Figure 2 This is a schematic diagram of the closed state structure of the utility model

[0016] Figure 3 This is a detailed view of the articulator;

[0017] Figure 4 Detailed diagram of the shrinkage device.

[0018] Among them, 1. ceiling frame, 2. first vertical fixing device, 21. round sphere, 3. triangular baffle, 4. transparent plastic film, 5. frame buckle, 6. hinge, 7. retraction device, 71. fixed base, 72. first reinforcement fixing device, 73. transparent plate, 74. reflective mirror, 75. second vertical fixing device, 76. second reinforcement fixing device, 77. hollow steel pipe, 78. steel pipe fixing device, 79. shape memory alloy reinforcement, 8. rectangular baffle, 9. third vertical fixing device, 91. vertical buckle, 11. semicircular wrapping piece. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 4 The intelligent self-shrinking vegetable greenhouse shown includes a roof, an opening and closing fixing device and a shrinking device 7.

[0021] Figure 1 In the figure, the transparent plastic film 4 is fixedly connected to the ceiling frame 1. The rectangular baffle 8 in the ceiling is perpendicular to the ceiling frame 1 and is fixedly connected to the ceiling frame 1. The triangular baffle 3 is located on both sides of the rectangular baffle 8 and is fixedly connected to the ceiling frame 1 and the rectangular baffle 8 to form a water storage tank. The position of the rectangular baffle 8 can be adjusted according to specific circumstances, and the size of the triangular baffle 3 changes with the position of the rectangle 8.

[0022] The first fixing device 2 is an intelligent self-contracting vegetable greenhouse support frame, which is fixed to the ground and plays a supporting role. It is connected to the ceiling frame 1 by a hinge 6.

[0023] Figure 3 In the figure, the hinge 6 includes a semicircular wrapping member 11 and a round sphere 21. The semicircular wrapping member 11 wraps the round sphere 21, and there is a lubricating layer in the middle, that is, the semicircular wrapping member 11 can wrap and rotate, and the rotation angle is about 45 degrees. The semicircular wrapping member 11 is fixedly connected to the ceiling frame 1, and the round sphere 21 is located at the upper end of the first fixing device 2.

[0024] Figure 1 In the figure, the frame buckle 5, the vertical buckle 91 and the third vertical fixing device 9 form a fixing device, which can fix the greenhouse in an open state. One end of the frame buckle 5 is fixedly connected to the ceiling frame 1, and the other end is a free end. The lower end of the third vertical fixing device 9 is inserted into the ground, and the upper end forms a 45-degree fixed connection with one end of the vertical buckle 91. The other end of the vertical buckle 91 and the free end of the frame buckle 5 are both triangular and complementary. The slope of the contact surface between the two can be adjusted to control the size of the fixing force.

[0025] Figure 4It is a detailed diagram of the retraction device. The first reinforcement fixing device 72 and the first reinforcement fixing device 76 are arc-shaped. The fixed base 71 is fixedly connected to the ceiling frame 1. The second reinforcement fixing device 76 is fixed to the second vertical fixing device 75. The other end of the second vertical fixing device 75 is inserted into the ground.

[0026] Figure 4 In the figure, the transparent plate 73 can directly transmit sunlight, and the reflective mirror surface 74 is an arc-shaped reflector for reflecting sunlight and transferring the heat energy of sunlight to the hollow steel tube 77. The middle of the hollow steel tube 77 can be hollowed to place the shape memory alloy rib 79, and the steel tube fixing device 78 is a fixing device, which connects the reflective mirror surface 74 and the hollow steel tube 77 and is used to fix the hollow steel tube 77 so that the hollow steel tube 77 is located at the focus of the light reflected by the reflective mirror surface 74.

[0027] Figure 4 In the embodiment, one end of the shape memory alloy rib 79 is fixed to the first rib fixing device 72 , and the other end passes through the square hollow steel tube 77 and then is fixed to the second rib fixing device 76 .

[0028] Figure 2 The state is the closed state of the vegetable greenhouse. When it rains, the water storage tank composed of the roof frame 1, the rectangular baffle 8 and the triangular baffle 3 accumulates rainwater. The rainwater exerts a downward force on one end of the roof frame 1. Due to the principle of leverage, the roof will rotate around the hinge 6, and the frame buckle 5 and the vertical buckle 91 will separate, which plays a role in closing the canopy to protect crops. When the canopy is closed, the roof frame 1 also exerts an oblique downward force on the fixed base 71. This force is transmitted to the first rib fixing device 72 through the fixed base 71, and then transmitted to the shape memory alloy rib 79 by the first rib fixing device 72. At this time, the shape memory alloy rib 79 is stretched to the martensite state. The roof frame 1 is located at the bottom end near one end of the rectangular baffle 8. The water in the water storage tank is poured out due to gravity. At this time, due to the gravity of the roof frame 1, the greenhouse is still in a closed state.

[0029] Figure 1 The state is that the vegetable greenhouse is open. When there is sunlight on a sunny day, the sunlight passes through the transparent plate 73 and shines on the inside of the reflective mirror 74. The hollow steel pipe 77 is located at the focus of the reflected light of the reflective mirror 74. All heat is conducted to the hollow steel pipe 77, and then transferred to the shape memory alloy rib 79 by the hollow steel pipe 77. The shape memory alloy rib 79 shrinks due to the heat, and undergoes a reverse phase transformation from martensite to austenite.

[0030] The shape memory alloy rib 79 exerts an upward force on the first rib fixing device 72, which is fixed to the fixed base 71 with the first rib fixing device 72, and the fixed base 71 is fixed to the ceiling frame 1, which is equivalent to the shape memory alloy rib 79 exerting an upward force on the ceiling frame 1. The ceiling frame 1 is counterclockwise upward around the hinge 6 at one end close to the rectangular baffle 8. When it reaches a certain point, the upper end of the frame buckle 5 contacts and gets stuck with the lower end of the vertical buckle 91, which plays a fixing role. At this time, the greenhouse is in an open state, and crops can grow under direct sunlight.

[0031] The present utility model patent is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model patent, technicians in this field can make some substitutions and deformations to some of the technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model patent.

Claims

1. A greenhouse that automatically opens and closes using solar energy, characterized in that: The invention comprises a greenhouse body, a contraction device (7) and an opening and closing fixing device; the greenhouse body comprises a water storage tank and a rain shield fixedly connected to the water storage tank, and the roof frame (1) is hinged to a plurality of first vertical fixing devices (2); the opening and closing fixing device comprises a frame buckle (5), a third vertical fixing device (9) and a vertical buckle (91); one end of the frame buckle (5) is fixedly connected to the roof frame (1), and the other end is a free end that contacts and engages with one end of the vertical buckle (91); the other end of the vertical buckle (91) is obliquely fixedly connected to the upper end of the third vertical fixing device (9); the contraction device comprises a fixed base (71), a transparent plate (73), a reflective mirror (74 ), a hollow steel tube (77) and a shape memory alloy rib (79); the fixed base (71) is fixedly connected to the ceiling frame (1); one end of the shape memory alloy rib (79) is fixed to a first rib fixing device (72), and the other end is fixed to a second rib fixing device (76) passing through the hollow steel tube (77); the first rib fixing device (72) is connected to the fixed base (71), and the second rib fixing device (76) is fixed to a second fixing device (75); the transparent plate (73) is connected to a reflective mirror (74), and the reflective mirror (74) is connected to the hollow steel tube (77) via a steel tube fixing device (78); When water accumulates in the water storage tank, the roof frame (1) is driven to rotate downward, the frame buckle (5) is separated from the vertical buckle (91), the roof frame (1) rotates downward, driving the fixed base (71) to rotate downward, the shape memory alloy ribs (79) are stretched to a martensite state, and the greenhouse is in a closed state; on sunny days, sunlight passes through the transparent plate (73) and shines on the reflective mirror (74), and then reflects to the hollow steel pipe (77), the temperature of the hollow steel pipe (77) rises and the heat is conducted to the shape memory alloy ribs (79), the shape memory alloy ribs (79) shrink into an austenite state when heated, and the shape memory alloy ribs (79) shrink through the fixed base (71) to drive the roof frame (1) to rotate upward, until the frame buckle (5) contacts and engages with the vertical buckle (91), and the greenhouse is in an open state.

2. The automatic opening and closing greenhouse using solar energy according to claim 1 is characterized in that: The ceiling frame (1) is connected to the first vertical fixing device (2) via a hinge (6).

3. The automatic opening and closing greenhouse using solar energy according to claim 2 is characterized in that: The hinge (6) comprises a circular sphere (21) and a semicircular wrapping piece (11), wherein the semicircular wrapping piece (11) wraps the circular sphere (21) for rotation.

4. The automatic opening and closing greenhouse using solar energy according to claim 3 is characterized in that: A circular sphere (21) is provided on the first vertical fixing device (2), and the semicircular wrapping piece (11) is fixedly connected to the ceiling frame (1).

5. The automatic opening and closing greenhouse using solar energy according to claim 1 is characterized in that: The free end of the frame buckle (5) and one end of the vertical buckle (91) in contact with the free end are both triangular in shape.

6. The automatic opening and closing greenhouse using solar energy according to claim 1 is characterized in that: One end of the second fixing device (75) is fixedly connected to the second reinforcement fixing device (76), and the other end is inserted into the ground.

7. The automatic opening and closing greenhouse using solar energy according to claim 1 is characterized in that: The rain shield comprises a ceiling frame (1) and a transparent film (4), wherein the transparent film (4) is fixedly connected to the ceiling frame (1).

8. The automatic opening and closing greenhouse using solar energy according to claim 7 is characterized in that: The water storage tank comprises a rectangular baffle (8) and a triangular baffle (3); the rectangular baffle (8) is vertically fixedly connected to the ceiling frame (1); the triangular baffle (3) is located on both sides of the rectangular baffle (8) and is fixedly connected to the ceiling frame (1) and the rectangular baffle (8).

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