Greenhouse illumination intensity regulation and control device

Abstract

The utility model discloses a greenhouse illumination intensity regulation and control device which comprises a frame provided with a plurality of frame bodies. The blades are arranged in the frames respectively, the two ends of each blade are provided with a first rotating shaft and a second rotating shaft, the first rotating shafts are arranged along the end axes of the blades, the blades are rotationally installed on the inner walls of the frames through the first rotating shafts, and the second rotating shafts are arranged away from the first rotating shafts; the electric push rods are arranged outside the frame bodies, connecting rod assemblies are arranged at the rod ends of the electric push rods, the connecting rod assemblies are connected with the second rotating shafts in the corresponding frame bodies, and the second rotating shafts are rotationally connected with the connecting rod assemblies. The mode of controlling the light inlet area is adopted, the light inlet areas are formed by a plurality of frame bodies through the arrangement of the frame, the blades are arranged in each frame body, the opening and closing degree is controlled through the electric push rods on the frame bodies, overall regulation and control and partition regulation and control of the multiple light inlet areas are achieved, and therefore the illumination intensity in the greenhouse is regulated and controlled more accurately.

Description

TECHNICAL FIELD

[0001] The utility model relates to a greenhouse culture technical field, concretely relates to a greenhouse light intensity control device. BACKGROUND

[0002] A greenhouse is a closed or semi-closed structure used for growing plants, designed to provide a controlled environment to optimize crop growth conditions. This structure is usually built with transparent materials such as glass or plastic film to allow sunlight to enter and keep the interior warm, and to ensure that plants receive enough light for photosynthesis, thus creating a microclimate suitable for plant growth.

[0003] Among them, the greenhouse light intensity is one of the important factors affecting crop growth and yield, and in the summer high temperature period, the light amount is usually controlled to reduce the light intensity to avoid excessive heating and affect plant growth. Currently, the existing greenhouse light intensity control device usually adopts the way of covering film (or covering net), that is, covering a layer of shading film on the outer layer of the greenhouse, and using a moving assembly to control the shading film to move on the outer layer of the greenhouse to complete the covering or uncovering state. Although this method can regulate the light intensity of the greenhouse, during use, due to the constant light blocking ability per unit area of the shading film, after covering the outer layer of the greenhouse, the light blocking of the shading film is determined, that is, there are usually only two states of shading and non-shading, and it is difficult to regulate the light intensity in the greenhouse according to the external light intensity. Even if the shading area of the shading film is adjusted, the unit light intensity changes greatly, the regulation accuracy is low, and the light intensity distribution is uneven due to partial shading and partial non-shading of the outer layer of the greenhouse.

[0004] Therefore, the existing light intensity control device that covers the outer layer of the greenhouse by moving the shading film cannot accurately regulate the light intensity in the greenhouse because it needs to cover a large area from one side to the other side. SUMMARY

[0005] The utility model aims at providing a greenhouse light intensity control device to solve the technical problem that the light intensity in the greenhouse cannot be accurately regulated because it needs to cover a large area from one side to the other side in the prior art.

[0006] To solve the above technical problems, the utility model provides the following technical solutions:

[0007] A greenhouse light intensity control device, comprising:

[0008] A frame is horizontally or obliquely arranged on the top of the greenhouse, and the frame has a plurality of frame bodies for light transmission.

[0009] The blades are arranged in the interiors of the frame bodies, and each of the interiors of the frame bodies has a plurality of blades arranged at equal intervals, both ends of each of the blades are provided with a first rotating shaft and a second rotating shaft, the first rotating shaft is arranged along an end axis of the blade, and the blade is rotatably arranged on an inner wall of the frame body through the first rotating shaft.

[0010] The electric push rods are arranged outside the frame bodies, the rod ends of the electric push rods are provided with connecting rod assemblies, the connecting rod assemblies are connected to the second rotating shafts in the interiors of the frame bodies, and the second rotating shafts are rotatably connected to the connecting rod assemblies.

[0011] When the electric push rods push the connecting rod assemblies, the connecting rod assemblies push and pull the second rotating shafts to rotate the blades to close.

[0012] When the electric push rods pull the connecting rod assemblies, the connecting rod assemblies push and pull the second rotating shafts to rotate the blades to open.

[0013] The electric push rods work independently or synchronously to adjust the light intensity of the greenhouse.

[0014] As a preferred scheme of the utility model, the connecting rod assembly comprises a first rod, the first rod is vertically and slidably connected to the rod end of the electric push rod, one end of the first rod away from the electric push rod is provided with a second rod, and the second rod is vertically connected to the first rod.

[0015] A plurality of third rods are arranged on the second rod, the third rods are perpendicular to the second rod, and the ends of the third rods are rotatably connected to the second rotating shafts.

[0016] A spring is arranged on the first rod, and two ends of the spring are fixed on the rod end of the electric push rod and the second rod.

[0017] As a preferred scheme of the utility model, a sliding groove is arranged on the side wall of the frame body, the second rod is arranged in the sliding groove, a plurality of guide grooves are arranged in the sliding groove, and the third rods are arranged in the guide grooves.

[0018] Part of the first rod is arranged in the sliding groove, and the end of the first rod extends out of the sliding groove and is vertically and slidably connected to the rod end of the electric push rod.

[0019] As a preferred scheme of the utility model, a light uniformizing film is arranged on the bottom of the frame, and the light uniformizing film covers the frame bodies.

[0020] As a preferred scheme of the utility model, a plurality of hangers are arranged between the frame and the light uniformity film, the plurality of hangers are fixed on the frame and the upper surface of the light uniformity film, so that the light uniformity film is separated from the frame.

[0021] As a preferred scheme of the utility model, the hanger comprises a hanging rod, a joint is arranged at the upper end of the hanging rod, the joint is installed on the frame, and a light transmission plate is arranged at the lower end of the hanging rod and installed on the upper surface of the light uniformity film.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The utility model adopts the mode of controlling light area, forms a light area by a plurality of frame bodies through setting the frame, sets a plurality of blades in each frame body, and controls the opening and closing degree by the electric push rod on the frame body, realizes overall regulation and control and partition regulation of multiple light areas, and thus more accurate regulation and control of the light intensity in the greenhouse are realized. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical schemes in the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only exemplary, and other implementation drawings can be obtained according to the provided drawings without creative labor for those skilled in the art.

[0025] Figure 1 The structural schematic diagram of the greenhouse light intensity regulation and control device is provided for the embodiments of the utility model;

[0026] Figure 2 The partial structural schematic diagram of the connecting rod assembly of the greenhouse light intensity regulation and control device is provided for the embodiments of the utility model;

[0027] Figure 3 The partial structural schematic diagram of the light uniformity film of the greenhouse light intensity regulation and control device is provided for the embodiments of the utility model.

[0028] The numbers in the drawings represent the following respectively:

[0029] 1-frame;2-blade;3-electric push rod;4-light uniformity film;

[0030] 11-frame;21-first rotating shaft;22-second rotating shaft;31-connecting rod assembly;41-hanger;

[0031] 111 - chute; 112 - guide slot; 311 - first rod; 312 - second rod; 313 - third rod; 314 - spring member; 411 - hanging rod; 412 - joint; 413 - light-transmitting plate. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] As shown in the drawings, the present application provides a greenhouse light intensity control device, comprising: Figure 1

[0034] Frame 1, horizontally or obliquely arranged at the top of the greenhouse, frame 1 has a plurality of frame bodies 11, frame body 11 is used for light passing;

[0035] Blade 2, arranged in each frame body 11, and each frame body 11 has a plurality of equidistantly distributed blades 2, both ends of blade 2 have first rotating shaft 21 and second rotating shaft 22, first rotating shaft 21 is arranged along the end axis of blade 2, blade 2 is rotatably installed on the inner wall of frame body 11 through first rotating shaft 21, and second rotating shaft 22 is arranged away from first rotating shaft 21;

[0036] Electric push rod 3 is arranged outside frame body 11, the rod end of electric push rod 3 is provided with connecting rod assembly 31, connecting rod assembly 31 is connected with a plurality of second rotating shafts 22 in the corresponding frame body 11, and the second rotating shaft 22 is rotatably connected with connecting rod assembly 31;

[0037] When electric push rod 3 pushes connecting rod assembly 31, connecting rod assembly 31 pushes and pushes down a plurality of second rotating shafts 22, so that a plurality of blades 2 are rotated and closed;

[0038] Or when electric push rod 3 pulls connecting rod assembly 31, connecting rod assembly 31 pulls and pulls up a plurality of second rotating shafts 22, so that a plurality of blades 2 are rotated and opened;

[0039] A plurality of electric push rods 3 work independently or synchronously to adjust the light amount of each frame body 11 and change the light intensity of the greenhouse.

[0040] ​The greenhouse light intensity control device of this embodiment mainly utilizes the frame 11 of the frame 1 to form multiple light-transmitting areas, and slats 2 are installed inside the frame 11. These slats 2 can be opened and closed by an electric push rod 3, thereby adjusting the amount of light entering each frame 11, i.e., controlling the light intensity inside the greenhouse. Specifically:

[0041] When it is necessary to increase the light intensity of the greenhouse, the electric push rod 3 pulls the connecting rod assembly 31, and the connecting rod assembly 31 simultaneously pulls the multiple second rotating shafts 22 inside the frame 11 to move upward. Since the second rotating shafts 22 deviate from the first rotating shafts 21, the multiple blades 2 rotate synchronously to the vertical state through the multiple first rotating shafts 21, thereby increasing the effective light transmission area between two adjacent blades 2, that is, opening multiple blades 2 and increasing the light intensity.

[0042] When it is necessary to reduce the light intensity in the greenhouse, the electric push rod 3 pushes the connecting rod assembly 31, and the connecting rod assembly 31 simultaneously pushes the multiple second rotating shafts 22 inside the frame 11 to move downward. Since the second rotating shafts 22 deviate from the first rotating shaft 21, the multiple blades 2 rotate synchronously to the horizontal state through the multiple first rotating shafts 21, thereby reducing the effective light transmission area between two adjacent blades 2, that is, gradually closing the multiple blades 2 and reducing the light intensity.

[0043] Compared to adjusting the coverage area of ​​the shading film, the greenhouse light intensity control device of this embodiment controls the light-incoming area. It controls the amount of light entering by setting multiple blades 2 in each frame 11, and sets an electric push rod 3 on each frame 11 to control the state of the blades 2, so as to achieve more precise light intensity control. Moreover, the blades 2 will not be damaged by frequent friction and have a long service life.

[0044] Furthermore, since the blades 2 in each frame 11 are controlled by a corresponding electric push rod 3, each frame 11 can adjust the amount of light entering the body synchronously or independently, achieving overall control and regional control, making the control more flexible.

[0045] Based on the above embodiments, the linkage assembly 31 is driven by the electric push rod 3. For the linkage assembly 31 to complete the rotation of the blade 2, it needs to move vertically while moving horizontally. That is, the movement trajectory of any point on the linkage assembly 31 is an arc trajectory rotating around the first rotating shaft 21. Based on this, the following preferred embodiments are provided.

[0046] like Figure 2 As shown, the linkage assembly 31 includes a first rod 311, which is vertically slidably connected to the end of the electric push rod 3. A second rod 312 is provided at the end of the first rod 311 away from the electric push rod 3, and the second rod 312 is vertically connected to the first rod 311.

[0047] Multiple third rods 313 are provided on the second rod 312. The third rods 313 are perpendicular to the second rod 312, and the ends of the multiple third rods 313 are respectively rotatably connected to the corresponding multiple second rotating shafts 22.

[0048] A spring 314 is fitted onto the first rod 311, and the two ends of the spring 314 are fixed to the rod end of the electric push rod 3 and the second rod 312, respectively.

[0049] Specifically, when the electric push rod 31 pushes the first rod 311 to move horizontally, the second connecting rod 312 and the third connecting rod 313 push the multiple second rotating shafts 22 to move horizontally. Since the second rotating shafts 22 are offset from the first rotating shaft 21 and are not at the same height, the second rotating shafts 22 rotate around the first rotating shaft 21. At the same time, the second rotating shafts 22 move down and pull the second connecting rods 312 and the third connecting rod 313 down, that is, pull the first rod 311 down, so as to realize the horizontal push and downward push of the connecting rod assembly 31.

[0050] Similarly, when the electric push rod 31 pulls the first rod 311 to move horizontally, the second connecting rod 312 and the third connecting rod 313 pull multiple second rotating shafts 22 to move horizontally. Since the second rotating shafts 22 are offset from the first rotating shaft 21 and are not at the same height, the second rotating shafts 22 rotate around the first rotating shaft 21. At the same time, the second rotating shafts 22 move upward and push the second connecting rod 312 and the third connecting rod 313 to move upward, that is, push the first rod 311 to move upward, so as to realize the horizontal pulling and upward pulling of the connecting rod assembly 31.

[0051] Of course, when the electric push rod 31 pulls the first rod 311 to move horizontally, the height difference between the second rotating shaft 22 and the first rotating shaft 21 is small, and the lever force is large. Therefore, a spring 314 is provided on the first rod 311. When the electric push rod 31 pushes the first rod 311 to move horizontally, the spring 314 will be stretched by the downward movement of the first rod 311. When the electric push rod 31 pulls the first rod 311 to move horizontally, the spring 314 will reset and pull the first rod 311 to move upward, thereby assisting the electric push rod 311 in opening the blade 2.

[0052] Since the connecting rod assembly 31 occupies a large space inside the frame 11, the gap between the blade 2 and the inner wall of the frame 11 is large, and its light-blocking effect is generally poor. Based on this, the following preferred embodiments are provided.

[0053] like Figure 2 As shown, a slide groove 111 is provided on the side wall of the frame 11, a second rod 312 is provided in the slide groove 111, a plurality of guide grooves 112 are provided in the slide groove 111, and a plurality of third rods 313 are respectively provided in the plurality of guide grooves 112.

[0054] Part of the first rod member 311 is placed in the sliding groove 111, and the end thereof extends out of the sliding groove 111 and is connected with the rod end of the electric push rod 3 in vertical sliding mode.

[0055] Specifically, the sliding groove 111 is used for placing part of the first rod member 311 and the second rod member 312, so that the end of the leaf 2 can be closer to the inner wall of the frame body 11, and the light shielding effect after closing is improved. The guide groove 112 is used for placing the third rod member 313, and the guide groove 112 is arranged as the arc track of the third rod member 313, so as to be relatively matched and not to penetrate the inner wall of the frame body 11, thereby ensuring the reliability of light shielding.

[0056] When adjusting the light intensity, the large-area greenhouse usually adopts the overall control mode, that is, multiple electric push rods 3 work synchronously to adjust the light amount of multiple frame bodies 11. However, for the large-area greenhouse, the internal cultivation articles are distributed densely, and the light passing through the gaps between the leaves 2 is easy to appear light and dark stripes, that is, the light intensity distribution is uneven. Based on this, the following preferred embodiments are provided.

[0057] As shown in Figure 3 , the light uniformity film 4 is arranged on the bottom of the frame 1, and covers the frame bodies 11.

[0058] Multiple hanging racks 41 are arranged between the frame 1 and the light uniformity film 4, and the multiple hanging racks 41 are fixed on the frame 1 and the upper surface of the light uniformity film 4, so as to separate the light uniformity film 4 from the frame 1.

[0059] Specifically, the light uniformity film 4 is hung on the bottom of the frame 1 by using the hanging rack 41 to form a soft film ceiling structure, and then the light passing through the frame body 11 is uniformly dispersed on the light uniformity film 4, and the light uniformity film 4 uniformly irradiates the cultivation articles in the greenhouse, thereby ensuring the uniform distribution of the light intensity.

[0060] Of course, the connection between the hanging rack 41 and the light uniformity film 4 can generate a dark area, which affects the uniformity of the light irradiation of the light uniformity film 4, thereby affecting the uniform distribution of the light intensity. Based on this, the following preferred embodiments are provided.

[0061] As shown in Figure 3 , the hanging rack 41 comprises a hanging rod 411, the upper end of the hanging rod 411 is provided with a joint 412, the joint 412 is installed on the frame 1, and the lower end of the hanging rod 411 is provided with a light-transmitting plate 413, and the light-transmitting plate 413 is installed on the upper surface of the light uniformity film 4.

[0062] Specifically, the bottom of the hanging rack 41 is connected with the light uniformity film 4 by using the light-transmitting plate 413, so as to reduce the dark area of the connection, and the light-transmitting plate 413 and the light uniformity film 4 can be bonded by using transparent glue, so as to further reduce the dark area, and make the irradiation of the light uniformity film 4 more uniform.

[0063] The above examples are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements are also considered to fall within the protection scope of the present application.

Claims

1. A device for regulating the light intensity in a greenhouse, characterized in that The application relates to a greenhouse light intensity regulating device, which comprises the following components. A frame (1) is horizontally or obliquely arranged on the top of a greenhouse, and the frame (1) is provided with a plurality of frame bodies (11) for light transmission; A plurality of blades (2) are arranged in the frame bodies (11), and each frame body (11) is provided with a plurality of equidistantly distributed blades (2); the two ends of each blade (2) are provided with a first rotating shaft (21) and a second rotating shaft (22); the first rotating shaft (21) is arranged along the end axis of the blade (2); the blade (2) is rotatably arranged on the inner wall of the frame body (11) through the first rotating shaft (21); and the second rotating shaft (22) is arranged away from the first rotating shaft (21); An electric push rod (3) is arranged outside each frame body (11); the rod end of the electric push rod (3) is provided with a connecting rod assembly (31); the connecting rod assembly (31) is connected with a plurality of second rotating shafts (22) in the corresponding frame body (11); and the second rotating shaft (22) is rotatably connected with the connecting rod assembly (31); When the electric push rod (3) pushes the connecting rod assembly (31), the connecting rod assembly (31) pushes and lowers the plurality of second rotating shafts (22), so that the plurality of blades (2) are rotated to be closed; When the electric push rod (3) pulls the connecting rod assembly (31), the connecting rod assembly (31) pulls and raises the plurality of second rotating shafts (22), so that the plurality of blades (2) are rotated to be opened; The plurality of electric push rods (3) independently or synchronously work to adjust the light transmission amount of each frame body (11) and change the light intensity of the greenhouse.

2. The greenhouse light intensity regulating device according to claim 1, wherein the connecting rod assembly (31) comprises a first rod (311) which is vertically and slidingly connected with the rod end of the electric push rod (3); one end of the first rod (311) away from the electric push rod (3) is provided with a second rod (312) which is vertically connected with the first rod (311); A plurality of third rods (313) are arranged on the second rod (312) and are vertically connected with the second rod (312); and the ends of the plurality of third rods (313) are rotatably connected with the corresponding plurality of second rotating shafts (22); A spring (314) is sleeved on the first rod (311); and the two ends of the spring (314) are fixed on the rod end of the electric push rod (3) and the second rod (312) respectively.

3. The greenhouse light intensity regulating device according to claim 2, wherein a sliding groove (111) is arranged on the side wall of the frame body (11); the second rod (312) is arranged in the sliding groove (111); a plurality of guide grooves (112) are arranged in the sliding groove (111); and the plurality of third rods (313) are arranged in the plurality of guide grooves (112) respectively. ​ ​ Part of the first rod member (311) is placed in the chute (111), and the end thereof extends out of the chute (111) and is in vertical sliding connection with the rod end of the electric push rod (3).

4. The greenhouse light intensity regulating device according to any one of claims 1-3, characterized in that, A light uniformity film (4) is arranged on the bottom of the frame (1), and the light uniformity film (4) covers each frame body (11).

5. The greenhouse light intensity regulating device according to claim 4, characterized in that, A plurality of hangers (41) are arranged between the frame (1) and the light uniformity film (4), the plurality of hangers (41) are fixed on the frame (1) and the upper surface of the light uniformity film (4), so as to separate the light uniformity film (4) from the frame (1).

6. The greenhouse light intensity regulating device according to claim 5, characterized in that, The hanger (41) comprises a hanging rod (411), the upper end of the hanging rod (411) is provided with a joint (412), the joint (412) is installed on the frame (1), and the lower end of the hanging rod (411) is provided with a light transmission plate (413), and the light transmission plate (413) is installed on the upper surface of the light uniformity film (4).

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