Greenhouse

Abstract

The utility model relates to the technical field of greenhouse planting, and discloses a greenhouse which comprises a greenhouse body comprising a supporting frame and a thin film laid on the supporting frame; a ventilation seam is formed in the arch face of the supporting frame and covered with a ventilation film, one end of the ventilation film is fixedly arranged on one side edge of the ventilation seam, and the other end of the ventilation film serves as a rolling end and can extend to cover the other side edge of the ventilation seam. The folding and unfolding mechanism comprises a film rolling device and a film rolling rod, and the film rolling rod is fixedly connected to the rotary output end of the film rolling device; the film rolling rod is fixedly connected with the rolling end of the ventilation film, and the rotary output end of the film rolling device rotates to drive the film rolling rod to rotate so as to roll the ventilation film or spread the ventilation film; the supporting structure is connected with the film rolling device; the folding and unfolding mechanism generates displacement in the process of rolling the ventilation thin film or spreading the ventilation thin film, and the supporting structure can support the folding and unfolding mechanism. In this way, the film rolling device can be used for driving the film rolling rod to rotate so as to roll or spread the ventilation film.

Description

Technical Field

[0001] The present application relates to the field of greenhouse planting technology, for example, to a greenhouse. Background Art

[0002] A greenhouse is a simple and practical protected cultivation facility. It uses bamboo, wood, steel and other materials and covers them with plastic film to form an arched shed for cultivating plants. It makes full use of solar energy, has a certain insulation effect, and can adjust the temperature and humidity in the shed within a certain range through the roll film. In cold areas, it mainly plays a role in insulation for advancing spring, delaying autumn and overwintering. Generally, spring can be advanced 30-35 days and autumn can be delayed 20-25 days.

[0003] The ventilation of the greenhouse is mainly to adjust the gas composition and adjust the temperature and humidity in the greenhouse. Generally, there are multiple ventilation slits on the greenhouse, and the ventilation slits are covered with openable films. When ventilation is needed to adjust the temperature and humidity, the film at the ventilation slits is opened to allow the outside air to exchange with the air inside the greenhouse to achieve ventilation and cooling effects. When ventilation is not needed, the film can be pulled closed.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The opening or closing of the film at the ventilation slits of existing greenhouses is mostly done manually, which is time-consuming and labor-intensive.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiments provide a greenhouse to solve the problem that the opening or closing of the film at the ventilation slits of the existing greenhouse is mostly done manually, which is time-consuming and labor-intensive.

[0009] In some embodiments, the greenhouse comprises: a greenhouse body, including a supporting frame and a film laid on the supporting frame; a ventilation slit is arranged on the arch surface of the supporting frame, and the ventilation slit is covered with a ventilation film, one end of the ventilation film is fixedly arranged on one side of the ventilation slit, and the other end as a winding end can extend to cover the other side of the ventilation slit, and the ventilation film can be rolled up to open the ventilation slit or spread to seal the ventilation slit; a retracting and unfolding mechanism, including a film rolling device and a film rolling rod, the film rolling rod is fixedly connected to the rotating output end of the film rolling device; the film rolling rod is fixedly connected to the retracting end of the ventilation film, and the rotating output end of the film rolling device rotates to drive the film rolling rod to rotate to retract the ventilation film or spread the ventilation film; a supporting structure is connected to the film rolling device; the retracting and unfolding mechanism generates displacement during the process of rolling up the ventilation film or spreading the ventilation film, and the support structure can provide support for the retracting and unfolding mechanism.

[0010] Optionally, the support structure includes: a first support sleeve rod, the first end of which is movably arranged on an end surface of the greenhouse body, and the second end of which is fixedly connected to the film roll; the first support sleeve rod can be extended and retracted so that the first end and the second end thereof can move relative to each other. Alternatively, the second support rod is fixedly arranged along the moving track of the film roll, and the film roll is slidably arranged on the second support rod.

[0011] Optionally, when the support structure includes a first support sleeve rod, the support structure further includes: a fixed seat fixedly arranged on an end surface of the greenhouse body; the fixed seat has a movable end, and the movable end is connected to the first end of the first support sleeve rod.

[0012] Optionally, in the greenhouse body, one end of the ventilation film is fixedly arranged on a side where the ventilation slot is located higher, and the other end can be extended as a rolled-up end to cover the other side where the ventilation slot is located lower.

[0013] Optionally, in the greenhouse body, the arch surface formed by the supporting frame is a curved surface, and the ventilation slits are arranged so that the angle between the tangent of the curved surface and the horizontal plane is in the range of 10° to 90°; or, the arch surface formed by the supporting frame is an inclined plane, and the angle between the inclined plane and the horizontal plane is in the range of 10° to 90°.

[0014] Optionally, the supporting structure includes a winding rope, a first end of which is fixedly arranged on one side of the ventilation slot, and a second end of which is fixedly arranged on the other side of the ventilation slot; and the winding rope is wound around a film rolling rod, so as to change the trajectory of the winding rope and generate friction between the winding rope and the film rolling rod, and this friction causes the retracting and unfolding mechanism to be displaced during the process of rolling up the ventilation film or spreading the ventilation film.

[0015] Optionally, in the greenhouse body, the fixed end of the ventilation film is fixedly arranged on a side where the ventilation slot is at a lower position, and the rolled-up end can extend to cover the other side where the ventilation slot is at a higher position.

[0016] Optionally, the support structure also includes a fixed frame fixedly arranged on an end surface of the greenhouse body; the fixed frame includes a first fixed end and a second fixed end, wherein the first fixed end is located on one side of the ventilation slot and is used to be fixedly connected to the first end of the winding rope; the second fixed end is located on the other side of the ventilation slot and is used to be fixedly connected to the second end of the winding rope.

[0017] Optionally, the fixed frame includes: a fixed rod, including a first end and a second end, the first end of the fixed rod being fixed to an end surface of the greenhouse body; a first support rod, one end of which is connected to the second end of the fixed rod, and the other end is used to be fixedly connected to the first end of the winding rope; a second support rod, one end of which is connected to the second end of the fixed rod, and the other end is used to be fixedly connected to the second end of the winding rope.

[0018] It also includes: a first guide rod, which is arranged on a fixed frame along the moving track of the film roller; the film roller is slidably connected to the first guide rod to provide support for the film roller during its movement; or a second guide sleeve, a first end of which is movably arranged on the fixed frame and a second end of which is connected to the film roller.

[0019] Optionally, a door frame is arranged on one end face of the greenhouse body; when the supporting structure includes a first supporting sleeve rod, the first end of the first supporting sleeve rod is swingably arranged on the upper frame border of the door frame, on the frame border of the door frame on the same side as the ventilation slot, or on the ground on the same side as the ventilation slot; when the supporting structure includes a fixing frame, the fixed end of the fixing frame is fixedly arranged on the upper frame border of the door frame, on the frame border of the door frame on the same side as the ventilation slot, or on the ground on the same side as the ventilation slot.

[0020] The greenhouse provided by the embodiments of the present disclosure can achieve the following technical effects:

[0021] The greenhouse provided by the disclosed embodiment utilizes a film roller to drive the film rolling rod to rotate to roll up or spread the ventilation film, and during the rolling or spreading process, support is provided by the supporting structure, and no human intervention is required at all, which can be completed automatically, saving time and effort.

[0022] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0024] Figure 1 It is a structural schematic diagram of a greenhouse provided by an embodiment of the present disclosure;

[0025] Figure 2A side view of a greenhouse provided by an embodiment of the present disclosure Figure 1 ;

[0026] Figure 3 It is a structural schematic diagram of another greenhouse provided by an embodiment of the present disclosure;

[0027] Figure 4 It is a structural schematic diagram of another greenhouse provided by an embodiment of the present disclosure;

[0028] Figure 5 A side view of another greenhouse provided by the present disclosure Figure 2 ;

[0029] Figure 6 yes Figure 5 A local enlarged schematic diagram of the middle A;

[0030] Figure 7 It is a structural schematic diagram of another greenhouse provided by an embodiment of the present disclosure;

[0031] Figure 8 It is a structural schematic diagram of another greenhouse provided by an embodiment of the present disclosure;

[0032] Fig. 9 It is a structural schematic diagram of another greenhouse provided by an embodiment of the present disclosure;

[0033] Fig.10 It is a structural schematic diagram of another greenhouse provided by an embodiment of the present disclosure;

[0034] Fig.11 It is a schematic diagram of the structure of another greenhouse provided in an embodiment of the present disclosure.

[0035] Reference numerals:

[0036] 10: greenhouse body; 11: support frame; 12: ventilation slit; 13: ventilation film; 131: fixed end; 132: reeling end; 14: door frame;

[0037] 20: retracting and unfolding mechanism; 21: film rolling device; 22: film rolling rod;

[0038] 30: Support structure; 31: First support sleeve rod; 311: Fixed seat; 3111, seat body; 3112, rotating shaft; 312, outer sleeve; 313, inner sleeve; 32: Second support rod; 33: Winding rope; 34: Fixed frame; 341: First support rod; 342: Second support rod; 343: Fixed rod; 344: First guide rod; 345: Second guide sleeve rod. DETAILED DESCRIPTION

[0039] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0040] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0042] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0043] Unless otherwise stated, the term "plurality" means two or more.

[0044] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0045] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0047] Combination Figure 1 and Figure 2 As shown, the embodiment of the present disclosure provides a greenhouse, including a greenhouse body 10, a retracting and unfolding mechanism 20 and a supporting structure 30. The greenhouse body 10 includes a supporting frame 11 and a film laid on the supporting frame 11; a ventilation slit 12 is arranged on the arch surface of the supporting frame 11, and a ventilation film 13 is covered on the ventilation slit 12, a fixed end 131 of the ventilation film 13 is fixedly arranged on one side of the ventilation slit 12, and a reeling end 132 can extend to cover the other side of the ventilation slit 12, and the ventilation film 13 can be reeled to open the ventilation slit 12 or spread to seal the ventilation slit 12. The retracting and unfolding mechanism 20 includes a film roll 21 and a film roll rod 22, and the film roll rod 22 is arranged at the rotating output end of the film roll 21; the film roll rod 22 is connected to the reeling end of the ventilation film 13, and the rotating output end of the film roll 21 rotates to drive the film roll rod 22 to rotate to reel in the ventilation film 13 or spread the ventilation film 13. The support structure 30 is connected to the film rolling device 21 , and when the film rolling device 21 is displaced in the process of rolling up the ventilation film 13 or spreading the ventilation film 13 , the support structure 30 can provide support for the rolling and unfolding mechanism 20 .

[0048] The greenhouse provided by the embodiment of the present disclosure uses a film roller 21 to drive the film roller rod 22 to rotate to roll up or spread the ventilation film 13, and during the rolling or spreading process, support is provided by the support structure 30, and no human intervention is required, which can be completed automatically, saving time and effort.

[0049] Generally, the ventilation slots 12 on the greenhouse body 10 include a middle slot and / or side slots. The middle slot is generally located at a higher position in the middle of the greenhouse, and the side slots are located at both sides of the greenhouse at a certain height from the ground. The retracting and unfolding mechanism 20 can be arranged on the middle slot or on the side slot, and both are applicable.

[0050] In the greenhouse of the disclosed embodiment, during the process of the film roller 21 driving the film rolling rod 22 to rotate to roll / unroll the ventilation film 13, the film roller 21 also needs to be displaced following the rolling / unrolling process. Therefore, a support structure 30 is provided to improve the stability of the film rolling and unrolling mechanism 20 during the displacement process, and has a limiting function to limit the movement trajectory of the film roller 21 / film rolling rod 22 so that no deviation occurs during the rolling / unrolling process.

[0051] Combination Figure 3As shown, in some embodiments, the support structure 30 includes a first support sleeve rod 31, the first end of the first support sleeve rod 31 is movably arranged on an end surface of the greenhouse body 10, and the second end is fixedly connected to the film roll 21; the first support sleeve rod can be retracted so that its first end and the second end can move relative to each other within a preset distance. In this embodiment, the first support sleeve rod 31 can move with the film roll 21 and provide support. It can be understood that the two sides of the ventilation slit 12 are at different heights, so the first end of the first support sleeve rod 31 is at different distances from the two sides of the ventilation slit 12. Therefore, in the process of the film roll 21 moving from one side of the ventilation slit 12 to the other side, the first support sleeve rod 31 needs to have a certain change in length. Therefore, the first support sleeve rod 31 in this embodiment can be retracted so that its first end and the second end can move relative to each other within a preset distance. Among them, the preset distance can be determined based on factors such as the width of the ventilation slit and the curvature of the greenhouse body where the ventilation slit is located. The support structure 30 including the first support sleeve rod 31 in this embodiment is recorded as the first support structure.

[0052] In a specific application, taking the width of the ventilation gap as 1 m as an example, the preset distance may be 10 cm to 15 cm.

[0053] Optionally, the first support sleeve rod 31 includes an outer sleeve 312 and an inner sleeve 313, and the first end of the inner sleeve 313 is sleeved on the outer sleeve 312 by the second end of the outer sleeve 312. A limiting structure is provided between the first end of the inner sleeve 313 and the second end of the outer sleeve 312 to limit the relative displacement of the inner sleeve 313 and the outer sleeve 312. In this embodiment, the second end of the inner sleeve 313 can be used as the second end or the first end of the first support sleeve rod 31, and correspondingly, the first end of the outer sleeve 312 can be used as the first end or the second end of the first support sleeve rod 31.

[0054] In this embodiment, the limiting structure is not limited, as long as the relative displacement (ie, the extension amount) of the outer sleeve 312 and the inner sleeve 313 is achieved.

[0055] Optionally, the outer sleeve 312 and the inner sleeve 313 are made of steel pipes, and the steel pipe model of the outer sleeve 312 is one size larger to facilitate the inner sleeve 313 to be installed on the outer sleeve 312.

[0056] In this embodiment, when the support rod rotates with the film roller 21, the moving track of the second end of the first support sleeve rod 31 is the moving track of the film roller 21 (film roller rod 22). That is, it is ensured that one end point of the moving track of the second end of the first support sleeve rod 31 is located at the position of the film roller 21 when the ventilation film 13 is in the process of spreading and sealing the ventilation gap 12 (i.e., one end point of the moving track of the film roller 21, which end point is recorded as the first end point), and the other end point of the moving track of the second end of the first support sleeve rod 31 is located at the position of the film roller 21 when the ventilation film 13 is in the process of rolling up and fully opening the ventilation gap 12 (i.e., the other end point of the moving track of the film roller 21, which end point is recorded as the second end point).

[0057] Optionally, the first end of the first support sleeve rod 31 is located on the perpendicular bisector of the line segment between the first end point and the second end point of the moving track of the film roller 21 (film roller rod 22), so that the moving track of the second end of the first support sleeve rod 31 (moving track of the film roller 21) can adapt to the shape of the greenhouse arch where the ventilation slit 12 is located, and the winding / unrolling of the ventilation film 13 can be completed more smoothly.

[0058] Optionally, the second end of the first support sleeve rod 31 is fixedly connected with a fixing ring, and the fixing ring is sleeved on the film roll 21. In this embodiment, the fixing ring is fixedly sleeved with the film roll 21 to fix the film roll 21 on the second end of the first support sleeve rod 31.

[0059] The connection structure between the second end of the first supporting sleeve rod 31 and the film rolling device 21 can be set according to actual needs, and is not limited to the connection method of the above-mentioned fixing ring.

[0060] Combination Figure 3 As shown, in some embodiments, when the first support structure includes the first support sleeve rod 31, the first support structure also includes a fixing seat 311, which is fixedly arranged on one end surface of the greenhouse body 10; the fixing seat 311 has a movable end, and the movable end is connected to the first end of the first support sleeve rod 31. In this embodiment, the first end of the first support sleeve rod 31 is movably arranged on one end surface of the greenhouse body 10 by setting the fixing seat 311.

[0061] Optionally, the fixed seat 311 includes a seat body 3111 and a rotating shaft 3112, the seat body is provided with an axle seat, and the rotating shaft 3112 is rotatably arranged on the axle seat. The first end of the first support sleeve is fixedly arranged on the rotating shaft. In this embodiment, the axle seat structure constructed on the seat body is not limited, as long as the rotating shaft connection is realized.

[0062] Optionally, the shaft seat is a through slot structure opened on the seat body, and the two ends of the rotating shaft are rotatably disposed on opposite slot walls of the through slot.

[0063] Alternatively, if Figure 3As shown, the shaft seat is two oppositely arranged support plates arranged on the seat body, and the two support plates are correspondingly provided with rotating holes, and the two ends of the rotating shaft are respectively rotatably arranged in the rotating holes on the corresponding side support plates.

[0064] Combination Figure 4 As shown, in other embodiments, the support structure 30 includes a second support rod 32, the second support rod 32 is fixedly arranged along the moving track of the film roll 21, and the film roll 21 is slidably arranged on the second support rod 32. During the movement of the film roll 21, the second support rod 32 can not only provide support but also limit the moving track of the film roll 21, and has the function of a guide rail. The support structure 30 of this embodiment is recorded as the second support structure. In this embodiment, the setting method of the film roll 21 slidingly arranged on the second support rod 32 is not limited, as long as the relative sliding of the two can be achieved. Optionally, the surface of the second support rod 32 in contact with the film roll 21 is set to a smooth surface, or the second support rod 32 is in linear contact with the film roll 21 to reduce friction. Optionally, a rolling structure is provided on the surface of the second support rod 32 in contact with the film roll 21, for example, the rolling structure includes a ball or a roller.

[0065] In the embodiment using the first support structure or the second support structure, in the greenhouse body 10, one end of the ventilation film 13 is fixedly arranged on the side of the ventilation slot 12 at a higher position, and the other end is used as a winding end and can extend to cover the other side of the ventilation slot 12 at a lower position. In this embodiment, in the process of winding the ventilation film 13, the film rolling rod 22 rolls up the film and drives the film rolling device 21 to move to the higher side to achieve winding; in the process of spreading the ventilation film 13, the film rolling rod 22 releases the film and the film rolling device 21 moves to the lower side under the action of gravity to achieve spreading.

[0066] Optionally, the arch surface formed by the support frame 11 is an arc surface, and the ventilation slit 12 is arranged at an angle between the tangent of the arc surface and the horizontal plane in the range of 10° to 90°; or, the arch surface formed by the support frame 11 is an inclined plane, and the angle between the inclined plane and the horizontal plane is in the range of 10° to 90°. In this embodiment, for the embodiment using the first support structure or the second support structure, when the film roll 21 descends by gravity during the spreading process, combined with the inclination of the ventilation slit 12, the smoothness of the downward movement of the film roll 21 is improved.

[0067] Optionally, the arch surface formed by the support frame 11 is an arc surface, and the ventilation slot 12 is arranged at an angle between the tangent of the arc surface and the horizontal plane in the range of 45° to 60°; or, the arch surface formed by the support frame 11 is an inclined plane, and the angle between the inclined plane and the horizontal plane is in the range of 45° to 60°. In the embodiment using the first support structure, the ventilation slot 12 is generally located near the top.

[0068] Optionally, the arch surface formed by the support frame 11 is an arc surface, and the ventilation slot 12 is arranged at a position where the angle between the tangent line of the arc surface and the horizontal plane is in the range of 60° to 90°; or, the arch surface formed by the support frame 11 is an inclined plane, and the angle between the inclined plane and the horizontal plane is in the range of 60° to 90°. In the embodiment using the first support structure, the position of the ventilation slot 12 is generally close to the ground and at a certain height from the ground.

[0069] Combination Figures 5 to 7 As shown, in other embodiments, the support structure 30 includes a winding rope 33, the first end of which is fixedly arranged on one side of the ventilation slot 12, and the second end of which is fixedly arranged on the other side of the ventilation slot 12; and the winding rope 33 is wound around the film rolling rod 22, changing the trajectory of the winding rope 33 and causing friction between the winding rope 33 and the film rolling rod 22, and this friction causes the retracting and unfolding mechanism to move during the process of retracting the ventilation film or spreading the ventilation film. In this embodiment, the winding rope 33 provides support for the film rolling rod 22, and the friction generated between the winding rope 33 and the film rolling rod 22 causes the film rolling rod 22 to move along the winding rope 33 under the action of the friction force while the film rolling rod 22 rotates, thereby improving the stability of the retracting and unfolding mechanism 20 during the displacement process, and having a limiting effect, limiting the moving trajectory of the film rolling device 21 / film rolling rod 22, so that no displacement occurs during the retracting / spreading process. The support structure 30 of this embodiment is recorded as the third support structure.

[0070] In this embodiment, the winding method of the take-up rope 33 around the film rolling rod 22 is not limited, as long as the take-up rope 33 has a certain length of contact in the circumferential direction of the film rolling rod 22 .

[0071] Alternatively, if Figure 5 and Figure 6 As shown, the winding rope 33 is wound around the film rolling rod 22 in a manner that includes at least one circle.

[0072] Optionally, the winding rope 33 is wound around the film rolling rod 22 with a number of 1 to 5 turns. For example, the number of turns is 1, 2, 3, 4 or 5. Of course, the maximum number of turns is not limited to 5, and more turns can be set according to actual conditions.

[0073] Optionally, in an embodiment using the third supporting structure, in the greenhouse body 10, the fixed end of the ventilation film 13 is fixedly arranged on a side of the ventilation slit 12 at a lower position (defined as a lower side), and the reeling end can extend to cover the other side of the ventilation slit 12 at a higher position (defined as a higher side). In this embodiment, when the film roll 21 is started to roll up the ventilation film 13, as the rolling proceeds, the retracting and unfolding mechanism 20 (film roll 21 and film roll rod 22) moves downward; when the ventilation film 13 is spread out, as the spreading proceeds, the retracting and unfolding mechanism 20 (film roll 21 and film roll rod 22) moves upward. During the downward rolling process, due to the friction between the reeling rope 33 and the film roll rod 22, the film roll rod 22 simultaneously winds up the reeling rope 33 section between the film roll rod 22 and the lower side of the ventilation slit 12 and simultaneously releases the reeling rope 33 section between the film roll rod 22 and the higher side of the ventilation slit 12, thereby realizing the synchronous movement of the film roll rod 22 and the reeling displacement. Similarly, during the upward spreading process, the film rolling rod 22 simultaneously winds the winding rope 33 section between the film rolling rod 22 and the high side of the ventilation slot 12 and simultaneously releases the winding rope 33 section between the film rolling rod 22 and the low side of the ventilation slot 12, so as to achieve the synchronous movement of the film rolling rod 22 and the spreading displacement. The third support structure of this embodiment can make the winding end of the ventilation film 13 located at the high side of the ventilation slot 12, which can effectively prevent the winding end of the ventilation film 13 from being blown away by the wind, thereby affecting the planting environment of the greenhouse and further affecting the growth of crops.

[0074] Optionally, in the third supporting structure, a winding rope 33 is respectively wound around one or both ends of the film rolling rod 22. When the winding rope 33 is respectively wound around both ends of the film rolling rod 22, the synchronization of the displacement of the two ends of the film rolling rod 22 can be effectively ensured. Of course, winding the winding rope 33 around one end of the film rolling rod 22 does not necessarily make the displacement of the two ends of the film rolling rod 22 asynchronous, which can be determined according to actual conditions.

[0075] Optionally, combined Figure 8 As shown, the third support structure also includes a fixing frame 34, which is fixedly arranged on an end surface of the greenhouse body 10; the fixing frame 34 includes a first fixed end and a second fixed end, wherein the first fixed end is located on one side of the ventilation slot 12 (for example, the lower side of the ventilation slot 12), and is used to be fixedly connected to the first end of the winding rope 33; the second fixed end is located on the other side of the ventilation slot 12 (for example, the higher side of the ventilation slot 12), and is used to be fixedly connected to the second end of the winding rope 33. In this embodiment, the setting of the fixing frame 34 facilitates the fixed setting of the two ends of the winding rope 33. The structure of the fixing frame 34 is not limited.

[0076] Optionally, combined Figure 8As shown, the fixing frame 34 includes a fixing rod 343, a first support rod 341 and a second support rod 342. The fixing rod 343 includes a first end and a second end, and the first end of the fixing rod 343 is fixed to an end surface of the greenhouse body. One end of the first support rod 341 is connected to the second end of the fixing rod 343, and the other end is used to be fixedly connected to the first end of the winding rope 33. One end of the second support rod 342 is connected to the second end of the fixing rod 343, and the other end is used to be fixedly connected to the second end of the winding rope 33.

[0077] In this embodiment, the first support rod 341 and the second support rod 342 constitute a bracket structure. Specifically, the first end of the first support rod 341 and the first end of the second support rod 342 are connected to form a tip and the second ends are separated from each other to form a bracket. The tip of the bracket is connected to the fixing rod 343, and the second end of the first support rod 341 is located on one side of the ventilation slot 12 as the first fixed end, and the second end of the second support rod 342 is located on the other side of the ventilation slot 12 as the second fixed end. The fixing frame 34 of this embodiment is designed as a fixing rod 343 and a bracket, which facilitates the positioning and setting of the two fixed ends of the bracket.

[0078] Optionally, the first end of the first support rod 341 and the first end of the second support rod 342 are connected, and the first support rod 341 and the second support rod 342 are symmetrically separated from each other, so as to form a V-shaped bracket.

[0079] Optionally, one end of the fixing rod 343 has a hollow section, and the bracket further includes a sleeve rod, one end of the sleeve rod is connected to the tip of the bracket, and the other end is inserted into the hollow section of the fixing rod 343. In this embodiment, the fixing rod 343 and the bracket are assembled in a simple manner and have good stability.

[0080] Optionally, when the bracket is constructed as a V-shaped bracket, the sleeve rod is extended along the symmetry line of the first support rod 341 and the second support rod 342. In this embodiment, when the sleeve rod is inserted into the hollow section of the fixed rod 343, the extension direction of the fixed rod 343 is defined. For example, when the first support rod 341 and the second support rod 342 are of the same length, the fixed rod 343 is located on the mid-perpendicular line of the first fixed end and the second fixed end, so that the moving track of the film roller 21 defined between the first fixed end and the second fixed end can better adapt to the shape of the greenhouse arch surface where the ventilation slit 12 is located, and the winding / unrolling of the ventilation film 13 can be completed more smoothly.

[0081] It can be understood that the support structure 30 in the greenhouse of the embodiment of the present disclosure can be provided with the first support structure and the third support structure at the same time, or the second support structure and the third support structure at the same time, as long as no interference occurs.

[0082] Of course, the first support sleeve rod 31 of the first support structure or the second support rod 32 of the second support structure can also be integrated on the fixing frame 34 of the third support structure to obtain a support structure 30 with a more compact structure and convenient assembly.

[0083] Optionally, combined Figure 8 As shown, the fixing frame 34 further includes a first guide rod 344, which is arranged on the fixing frame 34 along the moving track of the film roll 21; the film roll 21 is slidably connected to the first guide rod 344, and provides support for the film roll 21 during the movement of the film roll 21. The structure and function of the first guide rod 344 of this embodiment are the same as those of the second support rod 32 described above, and the relevant contents of the second support rod 32 are referred to above, and will not be repeated here.

[0084] Optionally, the two ends of the first guide rod 344 are respectively connected to the first support rod 341 and the second support rod 342. The structure is more compact and convenient to set. In this embodiment, the first guide rod 344 is located below the winding rope 33, or the first guide rod 344 and the winding rope 33 are vertically offset to better match the position of the film roll 21 and the film roll rod 22. It is not limited and can be set according to actual conditions.

[0085] Optionally, combined Fig. 9 As shown, the fixing frame 34 also includes a second guide sleeve 345, the first end of which is movably disposed on the fixing frame 34, and the second end is connected to the film roll 21. The second guide sleeve 345 can be extended and retracted, so that the first end and the second end thereof can move relative to each other within a preset distance. The film roll 21 is supported during the movement of the film roll 21. The structure and function of the second guide sleeve 345 of this embodiment are the same as those of the first support sleeve 31 described above, and the relevant contents of the first support sleeve 31 described above are referred to, and will not be repeated here.

[0086] Optionally, when the fixing frame 34 includes a second guide sleeve 345, the first end of the second guide sleeve 345 is movably provided at the connection between the first support rod 341 and the second support rod 342. In this way, it is more convenient to set the second guide sleeve 345, and it can also provide support for the film roll 21 during the movement of the film roll 21. The second guide sleeve 345 can also be movably provided on one end surface of the greenhouse body 10.

[0087] In the greenhouse of the disclosed embodiment, the number and location of the ventilation slits 12 are not limited, and the support structure 30 of any of the aforementioned embodiments can be selected according to the location of the ventilation slits 12 .

[0088] In some embodiments, a door frame 13 is disposed on one end surface of the greenhouse body 10 ; wherein the support structure 30 can be connected to the door frame 13 to make the structure of the greenhouse body 10 simpler and more compact.

[0089] Optionally, combined Figure 3 and Fig.10 As shown, in the case where the support structure 30 includes a first support sleeve rod 31, the first end of the first support sleeve rod 31 is swingably disposed on the upper frame of the door frame 13 (such as Figure 3 As shown), on the frame of the door frame on the same side as the ventilation gap (as shown Fig.10 As shown) or on the ground on the same side as the ventilation slit. Here, the position where the first end of the first support sleeve 31 is connected to the door frame 13 can be set according to the position of the ventilation slit 12. For example, the ventilation slit 12 is located on the left side of the greenhouse body 10, and the first end of the first support sleeve 31 is swingably set on the upper frame or left frame of the door frame 13 (on the same side as the ventilation slit 12); the ventilation slit 12 is located on the right side of the greenhouse body 10, and the first end of the first support sleeve 31 is swingably set on the upper frame or right frame of the door frame 13 (on the same side as the ventilation slit 12). Optionally, in combination Figures 7 to 9 ,as well as Fig.11 As shown, in the case where the support structure 30 includes a fixing frame 34, the fixing end of the fixing frame 34 is fixedly arranged on the upper frame of the door frame 13 (such as Figure 7 As shown), on the frame of the door frame on the same side as the ventilation slot or on the ground on the same side as the ventilation slot. Here, the fixing frame 34 can be connected to the door frame 13 through a fixing rod 343. The position where the fixing rod 343 is connected to the door frame 13 can also be set according to the position of the ventilation slot 12. Its setting method is the same as the setting method of the first support sleeve rod 31, and will not be repeated here.

[0090] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A greenhouse, characterized in that: include: The greenhouse body comprises a supporting frame and a film laid on the supporting frame; a ventilation slit is arranged on the arch surface of the supporting frame, and the ventilation slit is covered with a ventilation film, one end of the ventilation film is fixedly arranged on one side of the ventilation slit, and the other end can be extended to cover the other side of the ventilation slit as a rolling end, and the ventilation film can be rolled up to open the ventilation slit or spread to seal the ventilation slit; The retracting and unfolding mechanism comprises a film rolling device and a film rolling rod, wherein the film rolling rod is fixedly connected to the rotating output end of the film rolling device; the film rolling rod is fixedly connected to the retracting end of the ventilating film, and the rotating output end of the film rolling device rotates to drive the film rolling rod to rotate so as to retract the ventilating film or unfold the ventilating film; The supporting structure is connected to the film rolling device; the retracting and unfolding mechanism generates displacement in the process of retracting or unfolding the ventilation film, and the supporting structure can provide support for the retracting and unfolding mechanism.

2. The greenhouse according to claim 1, characterized in that: Support structure, including: A first support sleeve rod, the first end of which is movably arranged on an end surface of the greenhouse body, and the second end of which is fixedly connected to the film rolling device; the first support sleeve rod can be extended and retracted so that the first end and the second end thereof can move relative to each other within a preset distance; or The second support rod is fixedly arranged along the moving track of the film rolling device, and the film rolling device is slidably arranged on the second support rod.

3. The greenhouse according to claim 2, characterized in that: In the case where the supporting structure includes a first supporting sleeve rod, the supporting structure further includes: The fixing seat is fixedly arranged on an end surface of the greenhouse body; the fixing seat has a movable end, and the movable end is connected to the first end of the first supporting sleeve rod.

4. The greenhouse according to claim 2, characterized in that: In the greenhouse body, one end of the ventilation film is fixedly arranged on a side where the ventilation slot is high, and the other end can be extended as a rolled-up end to cover the other side where the ventilation slot is low.

5. The greenhouse according to claim 4, characterized in that: In the greenhouse body, the arch surface formed by the supporting frame is an arc surface, and the ventilation slits are arranged so that the angle between the tangent of the arc surface and the horizontal plane is in the range of 10° to 90°; or, the arch surface formed by the supporting frame is an inclined plane, and the angle between the inclined plane and the horizontal plane is in the range of 10° to 90°.

6. The greenhouse according to claim 1, characterized in that: Support structure, including: The first end of the winding rope is fixedly arranged on one side of the ventilation slot, and the second end is fixedly arranged on the other side of the ventilation slot; and the winding rope is wound around the film rolling rod, changing the trajectory of the winding rope and causing friction between the winding rope and the film rolling rod, and this friction causes the retracting and unfolding mechanism to move during the process of rolling up the ventilation film or spreading the ventilation film.

7. The greenhouse according to claim 6, characterized in that: In the greenhouse body, the fixed end of the ventilation film is fixedly arranged on a side where the ventilation slot is at a lower position, and the rolled-up end can extend to cover the other side where the ventilation slot is at a higher position.

8. The greenhouse according to claim 6, characterized in that: The support structure also includes: The fixed frame is fixedly arranged on an end surface of the greenhouse body; the fixed frame includes a first fixed end and a second fixed end, wherein the first fixed end is located on one side of the ventilation slot and is used to be fixedly connected to the first end of the winding rope; the second fixed end is located on the other side of the ventilation slot and is used to be fixedly connected to the second end of the winding rope.

9. The greenhouse according to claim 8, characterized in that: Mounting bracket, including: A fixing rod, comprising a first end and a second end, wherein the first end of the fixing rod is fixed to an end surface of the greenhouse body; A first support rod, one end of which is connected to the second end of the fixed rod, and the other end of which is used to be fixedly connected to the first end of the winding rope; The second support rod has one end connected to the second end of the fixing rod, and the other end is used for fixed connection with the second end of the winding rope.

10. The greenhouse according to any one of claims 1 to 9, characterized in that: A door frame is provided on one end surface of the greenhouse body; In the case where the supporting structure includes a first supporting sleeve rod, the first end of the first supporting sleeve rod is swingably disposed on an upper side frame of the door frame, on a side frame of the door frame on the same side as the ventilation slot, or on the ground on the same side as the ventilation slot; When the support structure includes a fixing frame, the fixing end of the fixing frame is fixedly arranged on the upper side frame of the door frame, on the side frame of the door frame on the same side as the ventilation slot, or on the ground on the same side as the ventilation slot.

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