A greenhouse air supply regulating device

Abstract

The present invention relates to the technical field of greenhouses, and proposes a greenhouse air supply adjustment device, including a guide rod and a film roll located beside a greenhouse support, wherein an upper film is located above the greenhouse support, and has a first film end on the lower side of the upper film; a lower film is located below the upper film, and has a second film end on the upper side of the lower film; a sliding frame is slidably arranged on the guide rod, and a slip ring is slidably arranged on the guide rod; a sliding seat is slidably arranged on a guide rail, and a film roll is arranged on each sliding seat, and the two sliding seats move closer to or away from each other after sliding; two film roll shafts are distributed up and down, the first film end is wound on the upper film roll shaft, and the second film end is wound on the lower film roll shaft, and when the two sliding seats are close to each other, the upper film wound on the upper film roll shaft abuts against the lower film wound on the lower film roll shaft; when the two sliding seats are far away, there is a ventilation window between the first film end and the second film end. Through the above technical scheme, the problems of poor gas flow and poor sealing effect in the greenhouse in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the technical field of greenhouses, and in particular to an air supply regulating device for a greenhouse. Background Art

[0002] Greenhouses can provide a suitable environment for plant growth, and the environment inside the greenhouse can be controlled through human intervention. Especially in the north where the seasonal environmental changes are large, greenhouses are suitable for promotion and are more convenient for mass cultivation and growth of vegetables, flowers and tree seedlings.

[0003] Covering the greenhouse support with a film can relatively isolate the internal environment of the greenhouse from the external environment. In addition to relying on temperature and humidity control equipment to regulate the temperature and humidity inside the greenhouse, it is more necessary to make use of the natural environment, such as natural ventilation, enhancing gas flow, changing carbon dioxide concentration, regulating internal temperature and humidity, etc. In the existing ventilation methods, fans can be used to enhance the one-way circulation of internal wind; ventilation windows can also be set on the greenhouse support, and the switches of the ventilation windows can be covered or opened by film. The position of the ventilation windows is fixed, and the direction of gas flow in the greenhouse is fixed, which generally cannot make the internal air circulate well over a large area; and the ventilation windows generally have a small opening, but when the film is covered on the ventilation windows, the covering area is longer, and the two films are superimposed up and down, and the films cannot be well sealed, resulting in air leakage, affecting the maintenance of the internal environment temperature and humidity, increased energy consumption, and even affecting production.

[0004] In the prior art, the problems of poor gas flow and poor sealing effect in greenhouses need to be solved. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a greenhouse air supply adjustment device in view of the above-mentioned technical deficiencies, which solves the problems of poor gas flow and poor sealing effect in the greenhouse in the prior art.

[0006] The technical solution adopted by the present invention is: to provide a greenhouse air supply adjustment device, including a guide rod and a film roll located beside the greenhouse support, the film roll having a rotatably arranged film roll shaft, characterized in that the film roll has two, and also includes:

[0007] An upper film is covered on the greenhouse support and is located above the greenhouse support, and a first film end is provided on the lower side of the upper film;

[0008] A lower film is covered on the greenhouse support and is located below the upper film, and the upper side of the lower film has a second film end;

[0009] A sliding frame, slidably arranged on the guide rod, the sliding frame having a sliding ring and a guide rail, and the sliding ring is slidably arranged on the guide rod;

[0010] A slide seat is slidably arranged on the guide rail, each of the slide seats is provided with a film rolling device, and two slide seats slide closer to or farther from each other;

[0011] Among them, the two film winding shafts are distributed up and down, the first film end is wound on the upper film winding shaft, and the second film end is wound on the lower film winding shaft. After the two slides are close to each other, the upper film wound on the upper film winding shaft abuts against the lower film wound on the lower film winding shaft; when the two slides are far away, a ventilation window is formed between the first film end and the second film end.

[0012] Further optimizing the technical solution, the guide rail includes a first guide rail and a second guide rail, the middle of the sliding frame has a guide ring, and the first guide rail and the second guide rail are located on both sides of the guide ring; and further comprising:

[0013] A rotating frame is rotatably arranged in the guide ring, and a third guide rail is provided on one side of the rotating frame. The third guide rail is used to connect the first guide rail and the second guide rail. The slide seat is slidably arranged with the third guide rail. When the two slide seats are located on the third guide rail at the same time, the two slide seats rotate with the rotating frame.

[0014] To further optimize the technical solution, the middle part of the sliding frame is provided with a sleeve, and the guide ring is annular and is located on the inner wall of the sleeve;

[0015] The outer side of the rotating frame is rotatably sleeved on the guide ring.

[0016] To further optimize the technical solution, the first guide rail, the second guide rail and the third guide rail are all "T"-shaped structures.

[0017] Further optimizing the technical solution, one side of the slide seat has a threaded hole; and further comprising:

[0018] A locking bolt is threadedly connected to the threaded hole and is used to abut against one side of the first guide rail, the second guide rail or the third guide rail.

[0019] To further optimize the technical solution, the guide rod moves relative to the greenhouse support, and after the movement, the guide rod moves closer to or farther away from the greenhouse support, so as to provide space for the rotating frame to rotate.

[0020] Further optimization of this technical solution also includes:

[0021] The telescopic rod has a movable end and a fixed end, wherein the movable end is arranged on the guide rod, and the fixed end is fixed relative to the greenhouse support.

[0022] The beneficial effects of the present invention are:

[0023] 1. The upper film and the lower film are covered on the greenhouse support, and the redundant upper film or lower film is wound on the film roll shaft. The sliding frame slides on the guide rod to change the height position of the slide seat (one film roll shaft is rolled up and the other film roll shaft is released), thereby changing the height position of the ventilation window to avoid poor ventilation and insufficient internal air flow caused by setting ventilation windows in a single position. At the same time, there is no need to set up multiple ventilation structures, which simplifies the structure and reduces the positions that need to be sealed (the ventilation structure needs to be opened and closed and needs to be sealed), thereby reducing the probability of air leakage, which is beneficial to maintaining the internal environment of the greenhouse and reducing energy consumption.

[0024] 2. The two slides slide on the guide rails of the slide frame and move away from each other to form a ventilation structure, which is convenient for controlling the opening size of the ventilation window. The first film end and the second film end are respectively wound on two film winding shafts, and the wound part is thicker and multi-layer cylindrical. The two flexible thicker cylindrical shapes abut against each other to form a sealed state, which has a better sealing effect and is conducive to reducing air leakage.

[0025] 3. Redundant upper or lower film is wound on the film roll shaft. When the upper or lower film is slightly damaged locally, the film roll shaft can be reeled in so that the damaged part is wound around it, while the other side of the film roll shaft is released to keep the interior of the greenhouse sealed. The damage can be dealt with in time to reduce air leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention (the upper membrane and the lower membrane are not shown);

[0027] Figure 2 For the present invention Figure 1 Schematic diagram of the front view structure in the state;

[0028] Figure 3 For the present invention Figure 1 Right view structure diagram in the state;

[0029] Figure 4 This is a front structural schematic diagram of the ventilation window of the present invention;

[0030] Figure 5 It is a schematic diagram of the closed state structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the ventilation window facing downwards of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the staggered embracing sealing state of the present invention;

[0033] Figure 8 It is a schematic diagram of the split structure of the present invention;

[0034] Fig. 9 It is a schematic diagram of the structure of the rotating frame of the present invention;

[0035] Explanation of marks in the figure: 1. Guide rod; 2. Upper film; 201. First film end; 3. Lower film; 301. Second film end; 4. Sliding frame; 401. Slip ring; 402. First guide rail; 403. Second guide rail; 404. Sleeve; 4041. Guide ring; 405. Rotating frame; 4051. Third guide rail; 5. Sliding seat; 501. Threaded hole; 6. Film winder; 601. First film winder shaft; 602. Second film winder shaft; 7. Locking bolt; 8. Telescopic rod; 801. Moving end; 802. Fixed end; 9. Ventilation window. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0038] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0040] like Figure 1-9As shown, a greenhouse air supply adjustment device includes a guide rod 1 and a film roll 6 located beside the greenhouse support, the film roll 6 has a rotatable film roll shaft, the film roll 6 has two, and also includes: an upper film 2, which is covered on the greenhouse support and located above the greenhouse support, and the lower side of the upper film 2 has a first film end 201; a lower film 3, which is covered on the greenhouse support and located below the upper film 2, and the upper side of the lower film 3 has a second film end 301; a sliding frame 4, which is slidably arranged on the guide rod 1, and the sliding frame 4 has a slip ring 401 and a guide rail, and the slip ring 401 slides The slide 5 is movably arranged on the guide rod 1; the slide 5 is slidably arranged on the guide rail, and a film winder 6 is arranged on each slide 5. After the two slides 5 slide, they approach or move away from each other; wherein, the two film rolling shafts are distributed up and down, the first film end 201 is wound on the upper film rolling shaft, and the second film end 301 is wound on the lower film rolling shaft, and after the two slides 5 approach, the upper film 2 wound on the upper film rolling shaft abuts against the lower film 3 wound on the lower film rolling shaft; when the two slides 5 move away from each other, there is a ventilation window 9 between the first film end 201 and the second film end 301.

[0041] When in use, various forms of greenhouses can be used. The greenhouse can be in the form of one wall and one film (for example, the front side alone is a film or the front side and the upper side are films, and the front side is the side facing south), or the front and rear sides and the upper side of the greenhouse are all films, and the left and right sides are walls and other structures. When the front and rear sides and the upper side are all films, the air supply regulating device can be set on both the front and rear sides, and the positions of the ventilation windows 9 on the front and rear sides can be adjusted independently. The ventilation windows 9 at different heights on the front and rear sides make different air circulation paths in the greenhouse, and strengthen the internal gas circulation. Of course, the upper side can also be set with the air supply regulating device alone, or rely on the moving stroke of the air supply regulating device on one side to cover the upper side. Take one side as an example for description of use. The greenhouse bracket can be an upright vertical surface or an arc surface. The guide rod 1 can be adapted to the shape of the greenhouse bracket for guidance. Take the front side of the greenhouse as an example for description of use.

[0042] The upper end of the upper film 2 is fixed to the upper end of the greenhouse support, the lower end of the lower film 3 is fixed to the lower end of the greenhouse support, the guide rod 1 is mounted beside the greenhouse support, the first film end 201 and the second film end 301 can be fixed with a reel along the left and right directions, the reel is coaxially connected with the film reel shaft, the film reel shaft drives the reel to rotate, reeling or releasing the upper film 2 or the lower film 3, the upper film 2 and the lower film 3 are wound on the film reel shaft through the reel. In the initial state, the sliding frame 4 can be located in the middle of the moving stroke, at this time, the two film reel shafts are respectively wound with multiple turns of the upper film 2 or the lower film 3 as redundancy. Figure 4As shown, when ventilation is required, the sliding frame 4 slides on the guide rod 1, adjusts the height position, preliminarily locates the height position of the ventilation window 9, and then slides to adjust the spacing and position between the two slide seats 5. Since the slide rail has a certain length, the position of the two slide seats 5 determines the height of the ventilation window 9 and the opening size of the ventilation window 9. Figure 5 As shown, when sealing is required, the two slide seats 5 move toward each other so that the upper film 2 and the lower film 3 on the two film winding shafts abut against each other to form a seal.

[0043] During the height adjustment of the ventilation window 9, the length of the upper film 2 or the lower film 3 changes, and the film roll shaft can be adaptively rolled up or released. For example, when adjusting upward, the upper film roll shaft rolls up the upper film 2, and the lower film roll shaft releases the lower film 3, and then moves upward. When the two slides 5 move away from each other, the two film roll shafts respectively roll up the upper film 2 and the lower film 3, and move away from each other, forming a ventilation window 9 in the middle.

[0044] When the air supply adjustment device is installed on both the front and rear sides of the greenhouse, the following ventilation method can be adopted. A ventilation window 9 is formed at the bottom of the front side and a ventilation window 9 is formed at the top of the rear side. Then, the upward and downward circulation of the internal air is enhanced. When air circulation is required to avoid the plants below, ventilation windows 9 can be formed at the top of both the front and rear sides.

[0045] The upper film 2 and the lower film 3 are both thin films. Generally, thin films are made of transparent materials. Although they are light-transmissive, they still have a certain shading effect. Mainly under the effect of strong light, they can block and reduce the damage of direct strong light to plants. At this time, the ventilation window 9 allows strong light to directly penetrate, and the position of the ventilation window 9 is highly adjustable, which can reduce the probability of strong light directly hitting the plants.

[0046] When the film is damaged, it can be repaired in time. For example, when the upper film 2 is partially damaged near the film reel, and it is impossible to replace or repair the entire film, the upper film reel 6 is started, and the upper film reel reels more of the upper film 2 so that the damaged part is wound around the film reel, which will not cause air leakage. At this time, the lower film reel releases an equal amount of the lower film 3 and moves upward to continue to maintain the contact and seal with the upper film 2.

[0047] Furthermore, the guide rails include a first guide rail 402 and a second guide rail 403, a guide ring 4041 is provided in the middle of the sliding frame 4, and the first guide rail 402 and the second guide rail 403 are located on both sides of the guide ring 4041; and further include: a rotating frame 405, which is rotatably arranged in the guide ring 4041, and a third guide rail 4051 is provided on one side of the rotating frame 405, and the third guide rail 4051 is used to connect the first guide rail 402 and the second guide rail 403, and the slide 5 is slidably arranged with the third guide rail 4051, and when the two slides 5 are located on the third guide rail 4051 at the same time, the two slides 5 rotate with the rotating frame 405. A sleeve 404 is provided in the middle of the sliding frame 4, and the guide ring 4041 is annular and located on the inner wall of the sleeve; the outer side of the rotating frame 405 is rotatably sleeved on the guide ring 4041.

[0048] When in use, the rotation of the rotating frame 405 causes the two film rolls 6 to rotate around the center position, which can change the structure and sealing structure of the ventilation window 9. The film roll shaft on the upper side is the first film roll shaft 601, and the film roll shaft on the lower side is the second film roll shaft 602. The two film roll shafts are symmetrically arranged, the upper side of the guide rail is the first guide rail 402, and the lower side is the second guide rail 403. The third guide rail 4051 is located between the first guide rail 402 and the second guide rail 403.

[0049] like Figure 6 As shown, when both slides 5 are on the third guide rail 4051 on the rotating frame 405 and are separated from each other by a distance to form a ventilation window 9, the rotating frame 405 rotates counterclockwise by 90°, at which time the first film roll shaft 601 is separated from the greenhouse support, the end of the upper film 2 is raised, the second film roll shaft 602 is close to the greenhouse support, and the direction of the ventilation window 9 changes from forward to downward. Generally, the wind direction is horizontal, and the ventilation window 9 facing downward or upward can reduce the risk of strong wind filling, and when facing downward, it can reduce the direct light entering the greenhouse and the effect of rain protection.

[0050] like Figure 7 As shown, when sealing is required, the two slides 5 are both located on the rotating frame 405 and close to each other. At this time, the rotating frame 405 rotates 180° counterclockwise (not limited to 180°), and the first film roll shaft 601 rotates to the bottom of the second film roll shaft 602, and the upper film 2 covers the lower film 3, forming a staggered embracing seal. The sealing contact area becomes larger and the positions become more, which can greatly improve the sealing effect and reduce air leakage and rain leakage. In the figure, in order to clearly show the boundaries of each structure, the sealing positions are spaced relatively large. However, when the upper film 2 and the lower film 3 are in a taut state, those skilled in the art can clearly know that multiple positions are in contact with the sealing state structure.

[0051] When the two circles are abutted against each other for sealing or staggered for sealing, there may be leakage on the left and right sides of the film. For example, when two circles abut against each other, although the deformation can increase the contact area, there may be a position that cannot be abutted against and sealed due to structural limitations, which is the leakage position. However, the area of ​​the leakage position is small and can be closed by existing shielding methods or by pressing the upper film 2 and the lower film 3.

[0052] Furthermore, the first guide rail 402, the second guide rail 403 and the third guide rail 4051 are all "T" shaped structures. The slide seat 5 has a threaded hole 501 on one side and also includes a locking bolt 7, which is threadedly connected to the threaded hole 501 and is used to abut against one side of the first guide rail 402, the second guide rail 403 or the third guide rail 4051.

[0053] When in use, the first guide rail 402, the second guide rail 403 and the third guide rail 4051 are coaxially arranged, and the third guide rail 4051 can rotate and dock with the second guide rail 403 between the first guide rail 402. The "T"-shaped structure is relatively stable, and the locking bolt 7 can be used to lock the slide 5 and the guide rail for positioning. Of course, the sliding of the slide 5 on the guide rail can also rely on existing electric technology to achieve automation, which is convenient for adapting to higher greenhouses. The opening size of the ventilation window 9 can be fixed at a lower position, and then the slide frame 4 can be slid on the guide rod 1 to adjust the height position. The sliding of the slide frame 4 on the guide rod 1 can be achieved by winding or releasing the upper film 2 or the lower film 3, and can also rely on existing electric technology to achieve active control, which are all prior arts.

[0054] Further, the guide rod 1 moves relative to the greenhouse support, and after the guide rod 1 moves closer to or farther from the greenhouse support, it is used to provide space for the rotation of the rotating frame 405. It also includes: a telescopic rod 8, having a movable end 801 and a fixed end 802, the movable end 801 is arranged on the guide rod 1, and the fixed end 802 is fixed relative to the greenhouse support.

[0055] When in use, when the rotating frame 405 rotates, the avoidance space can be set on the greenhouse support to meet the rotation space requirements, and the natural movement can also be achieved by following the guide rod 1. For example, when the rotating frame 405 rotates 90° counterclockwise, the second film rolling shaft 602 is close to the greenhouse support, and the first film rolling shaft 601 is away from the greenhouse support. At this time, the sliding frame 4 and the rotating frame 405 are away from the greenhouse support as a whole, and the guide rod 1 can follow and move away, and the telescopic rod 8 can follow and retract. The upper film 2 is in a relatively taut state, which can provide a positioning effect. In all adjustment or rotation actions, the film rolling shaft can retract or release the upper film 2 or the lower film 3 as needed.

[0056] When more telescopic rods 8 need to be provided, the slip ring 401 can be “C” shaped to avoid the moving end 801 .

[0057] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A greenhouse air supply regulating device, comprising a guide rod (1) located beside a greenhouse support and a film roll (6), wherein the film roll (6) has a rotatably arranged film roll shaft, characterized in that: The film rolling device (6) has two parts and further comprises: An upper film (2) covers the greenhouse support and is located above the greenhouse support, and the lower side of the upper film (2) has a first film end (201); A lower film (3) is covered on the greenhouse support and is located below the upper film (2), and the upper side of the lower film (3) has a second film end (301); A sliding frame (4) is slidably arranged on the guide rod (1), the sliding frame (4) having a sliding ring (401) and a guide rail, and the sliding ring (401) is slidably arranged on the guide rod (1); A slide seat (5) is slidably arranged on the guide rail, and each slide seat (5) is provided with a film rolling device (6). After the two slide seats (5) slide, they move closer to or farther from each other; The two film winding shafts are distributed up and down, the first film end (201) is wound on the upper film winding shaft, and the second film end (301) is wound on the lower film winding shaft. When the two slide seats (5) are close to each other, the upper film (2) wound on the upper film winding shaft abuts against the lower film (3) wound on the lower film winding shaft. When the two slide seats (5) are away from each other, a ventilation window (9) is formed between the first film end (201) and the second film end (301). The guide rail comprises a first guide rail (402) and a second guide rail (403); a guide ring (4041) is provided in the middle of the sliding frame (4); the first guide rail (402) and the second guide rail (403) are located on both sides of the guide ring (4041); A rotating frame (405) is rotatably arranged in the guide ring (4041); one side of the rotating frame (405) is provided with a third guide rail (4051); the third guide rail (4051) is used to connect the first guide rail (402) and the second guide rail (403); the slide seat (5) is slidably arranged with the third guide rail (4051); when the two slide seats (5) are located on the third guide rail (4051) at the same time, the two slide seats (5) rotate along with the rotating frame (405).

2. A greenhouse air supply regulating device according to claim 1, characterized in that: The sliding frame (4) has a sleeve (404) in the middle, and the guide ring (4041) is annular and located on the inner wall of the sleeve (404); The outer side of the rotating frame (405) is rotatably sleeved on the guide ring (4041).

3. A greenhouse air supply regulating device according to claim 1, characterized in that: The first guide rail (402), the second guide rail (403) and the third guide rail (4051) are all "T"-shaped structures.

4. A greenhouse air supply regulating device according to claim 3, characterized in that: The slide seat (5) has a threaded hole (501) on one side; and further comprises: A locking bolt (7) is threadedly connected to the threaded hole (501) and is used to abut against one side of the first guide rail (402) or the second guide rail (403) or the third guide rail (4051).

5. The greenhouse air supply regulating device according to claim 1, characterized in that: The guide rod (1) moves relative to the greenhouse support. After moving, the guide rod (1) moves closer to or farther away from the greenhouse support, so as to provide space for the rotating frame (405) to rotate.

6. A greenhouse air supply regulating device according to claim 5, characterized in that: Also includes: The telescopic rod (8) has a movable end (801) and a fixed end (802), wherein the movable end (801) is arranged on the guide rod (1), and the fixed end (802) is fixed relative to the greenhouse support.

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