Double-layer full-open-top greenhouse

Abstract

The utility model provides a double-layer full-open-top greenhouse, and belongs to the technical field of greenhouses. The single-layer greenhouse solves the problem that an existing single-layer greenhouse can not meet the heat preservation requirement of plants sometimes. Every two adjacent sets of main stand columns are connected through a lower cross beam, the main stand columns in the main stand column sets are connected through upper longitudinal pieces and lower longitudinal pieces which are arranged up and down, an upper arch bar is arranged between every two adjacent upper longitudinal pieces, a lower arch bar is arranged between every two adjacent lower longitudinal pieces, an upper top film is arranged on the upper arch bars, and a lower top film is arranged on the lower arch bars. The greenhouse further comprises an upper film rolling mechanism used for opening the upper top film and a lower film rolling mechanism used for opening the lower top film, and side films or glass side walls are further arranged on the two main stand column sets located on the outermost side. The utility model has the advantages of double-layer heat preservation, automatic top opening and large top opening angle.

Description

Technical Field

[0001] The utility model belongs to the technical field of greenhouses, and in particular relates to a double-layer fully open-top greenhouse. Background Art

[0002] A greenhouse is a facility that allows light to pass through, insulates heat (or provides heating) for plant cultivation. Its primary function is to provide a growth period and increase yields during seasons unsuitable for plant growth. It is often used for cultivating or raising seedlings of thermophilic vegetables, flowers, and trees during cooler months. Greenhouses create a suitable growth environment for plants by regulating environmental factors such as temperature, humidity, and light.

[0003] Existing greenhouses are all single-layered, and the insulation effect of single-layer greenhouses is limited. Especially in winter, single-layer greenhouses sometimes cannot meet the insulation needs of plants. Summary of the Invention

[0004] The utility model aims to provide a double-layer greenhouse with an automatically opening top, in view of the fact that the existing single-layer greenhouse has insufficient thermal insulation effect.

[0005] The purpose of this utility model can be achieved through the following technical solutions:

[0006] A double-layer fully open-top greenhouse comprises a plurality of main columns, which are divided into a plurality of main column groups along a first direction, and two adjacent groups of main columns are connected by a lower cross beam, and the main columns in the main column groups are arranged in sequence along a second direction, and the main columns in the main column groups are connected by upper longitudinal members and lower longitudinal members arranged up and down, and the upper longitudinal members and the lower longitudinal members both extend along the second direction, an upper arch rod is provided between two adjacent upper longitudinal members, and a lower arch rod is provided between two adjacent lower longitudinal members, an upper top film is provided on the upper arch rod, and a lower top film is provided on the lower arch rod, the greenhouse also comprises an upper film rolling mechanism for opening the upper top film and a lower film rolling mechanism for opening the lower top film, and the two outermost main column groups are also provided with side films or glass side walls.

[0007] In the above-mentioned double-layer fully open-roof greenhouse, the side film is opened by a side main film rolling mechanism.

[0008] In the above-mentioned double-layer fully open-roof greenhouse, the greenhouse also includes a side insulation layer arranged on the inner or outer side of the side film, and the side insulation layer includes multiple side film rods and insulation films arranged on the side film rods. The multiple side film rods are arranged in sequence along the above-mentioned second direction, the upper ends of the side film rods are fixed on the above-mentioned lower longitudinal members or main columns, and the lower ends of the side film rods are fixed on the ground. The insulation film can be opened by a side auxiliary film rolling mechanism.

[0009] In the above-mentioned double-layer fully open-roof greenhouse, the side insulation layer is located on the inner side of the side film, and the side film rod is divided into an inclined section, an arc section and a vertical section from top to bottom. The inclined section gradually moves away from the side film as it extends from top to bottom, and the arc section is arc-shaped.

[0010] In the above-mentioned double-layer fully open-roof greenhouse, the side insulation layer is located outside the side film, and the side film rods gradually move away from the side film during the process of extending from top to bottom.

[0011] In the above-mentioned double-layer fully open-top greenhouse, the upper longitudinal member is provided with a concave upper water trough, and the upper arch rod is fixed on the outer side of the upper longitudinal member; the lower longitudinal member is provided with a concave lower water trough, and the lower arch rod is fixed on the outer side of the lower longitudinal member.

[0012] In the above-mentioned double-layer fully open-top greenhouse, the side film rods are fixed to the main columns through baffles, the baffles are located below the lower longitudinal member, and the baffles extend along the second direction.

[0013] In the above-mentioned double-layer fully open-top greenhouse, the upper longitudinal member is fixed to the top of the main column.

[0014] In the above-mentioned double-layer fully open-top greenhouse, the lower longitudinal member is divided into a first longitudinal member and a second longitudinal member. The two sides of the lower water trough of the first longitudinal member are symmetrically arranged and are both inclined. The first longitudinal member is provided with a plurality of sockets passing through up and down. The plurality of sockets are arranged in sequence along the length direction of the first longitudinal member. The sockets are used for the main columns to pass through. The two sides of the lower water trough of the second longitudinal member are one vertical and the other inclined, and the inclined side faces inward. The outermost main columns are connected through the second longitudinal member.

[0015] In the above-mentioned double-layer fully open-top greenhouse, a vertically arranged top rod is provided on the lower cross beam, the upper end of the top rod is connected to the upper arch rod, and the upper arch rod is symmetrical with respect to the center of the top rod.

[0016] In the above-mentioned double-layer fully open-roof greenhouse, the upper film rolling mechanism, the lower film rolling mechanism, the side main film rolling mechanism and the side auxiliary film rolling mechanism are all film rolling machines.

[0017] In the above-mentioned double-layer fully open-top greenhouse, auxiliary columns are provided on the main columns, and the auxiliary columns between two adjacent main column groups are connected by an upper crossbeam, which extends in a first direction and is connected to the auxiliary columns of the main column group by a longitudinal beam, which extends in a second direction. A movable beam is provided above the longitudinal beam, which extends in a first direction and can move in a second direction under the action of a driving mechanism. A sunshade cloth is provided on the movable beam, one end of which is connected to the movable beam, and the other end is fixed.

[0018] In the above-mentioned double-layer fully open-top greenhouse, the driving mechanism includes a gear, a rack and a motor. The gear rotates under the drive of the motor, the gear is engaged with the rack, the rack extends along the above-mentioned second direction, and the rack is connected to the movable beam for transmission.

[0019] In the above-mentioned double-layer fully open-top greenhouse, there are multiple movable beams, and the multiple movable beams are arranged in sequence along the second direction. The multiple movable beams are fixed on the connecting rod, and the above-mentioned rack is fixed on the connecting rod. A sunshade cloth is correspondingly provided on each movable beam, and one end of the sunshade cloth is fixed on the upper crossbeam.

[0020] In the above-mentioned double-layer fully open-top greenhouse, the lower end of the auxiliary column is located in the above-mentioned upper water trough.

[0021] In the above-mentioned double-layer fully open-roof greenhouse, an oblique support is further connected between the upper crossbeam and the auxiliary columns.

[0022] In the above-mentioned double-layer fully open-roof greenhouse, the projections of the first direction and the second direction on the horizontal plane are perpendicular to each other.

[0023] In the above-mentioned double-layer fully open-roof greenhouse, the opening and closing angle of the top film on one side of the upper arch rod or the lower arch rod is greater than 80 degrees.

[0024] Compared with the prior art, the advantages of the present invention are:

[0025] 1. The double-layer insulation film structure has a good insulation effect, and both roofs can be opened and closed automatically. One or two roofs can be opened according to the temperature requirements of the specific plants. Combined with the fully automatic opening and closing sunshade cloth, it has a high degree of automation, a large adjustable temperature range of the greenhouse, and high applicability.

[0026] 2. The top film has a large opening and closing angle, which can achieve good ventilation and heat dissipation effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a front view of the inner shed of Example 1;

[0028] Figure 2 This is a side view of the inner shed of Example 1;

[0029] Figure 3 It is a structural diagram of the sunshade cloth and the driving mechanism;

[0030] Figure 4 for Figure 1 A local enlarged view of point I;

[0031] Figure 5 Schematic diagram of the upper longitudinal member structure;

[0032] Figure 6 This is a structural diagram of Example 2.

[0033] In the figure, 1. main column; 2. lower crossbeam; 3. upper longitudinal member; 4. lower longitudinal member; 5. upper water trough; 6. baffle; 7. upper arch rod; 8. top rod; 9. film pressing rod; 10. rocker; 11. longitudinal beam; 12. lower arch rod; 13. inner crossbeam; 14. side film rod; 15. auxiliary column; 16. upper crossbeam; 17. oblique support; 18. movable beam; 19. connecting rod; 20. sunshade cloth; 21. rack; 22. motor. DETAILED DESCRIPTION

[0034] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments. Example 1

[0035] like Figure 1-5 As shown, the utility model provides a double-layer fully open roof greenhouse, including multiple main columns 1, the outer diameters of the multiple main columns 1 can be the same or different, and the multiple main columns 1 are divided into several main column groups along the first direction. In this embodiment, they are divided into five main column groups to form four spans. The main columns 1 of two adjacent main column groups correspond to each other one by one and are connected by a lower crossbeam 2. The main columns 1 in the main column group are arranged in sequence along a second direction. The projections of the first direction and the second direction on the horizontal plane are perpendicular to each other. The first direction is Figure 1 Left and right direction in .

[0036] Each main column 1 in the main column group is connected by an upper longitudinal member 3 and a lower longitudinal member 4 arranged above and below. The upper longitudinal member 3 and the lower longitudinal member 4 both extend in the second direction. The upper longitudinal member 3 is connected to the top of the main column 1. The upper longitudinal member 3 is provided with a concave upper water trough 5, which is used to receive water and divert water. The cross-section of the upper longitudinal member 3 is a "V" shape with a horizontal bottom. The lower longitudinal member 4 is provided with a concave lower water trough. The lower longitudinal member 4 is divided into a first longitudinal member and a second longitudinal member. The cross-sectional shape of the first longitudinal member is the same as that of the upper longitudinal member 3. The first longitudinal member is provided with a plurality of jacks that pass through it up and down. The plurality of jacks are arranged in sequence at intervals along the length direction of the first longitudinal member. The jacks are used to pass through the main column 1. The two sides of the lower water trough of the second longitudinal member are vertical on one side and inclined on the other side. The inclined side faces inward. The outermost main column 1 is connected through the second longitudinal member. A baffle 6 is provided below the second longitudinal member. The baffle 6 extends in the second direction and is fixed on each main column 1.

[0037] The area covered by the upper top film is the outer shed, and the area covered by the lower top film is the inner shed.

[0038] An upper arch rod 7 is provided between two adjacent upper longitudinal members 3. The two ends of the upper arch rod 7 are connected to the outer sides of the upper longitudinal members 3 on both sides. The inner sides of the tops of the upper arch rods 7 of the same group are connected by a pull rod. The outermost upper arch rods 7 at both ends along the second direction are the door head positions of the outer shed. The door head is provided with an outer entrance and exit. A vertically arranged top rod 8 is provided on the lower crossbeam 2. The upper end of the top rod 8 is connected to the upper arch rod 7. The upper arch rod 7 is symmetrical with respect to the top rod 8. A number of film pressing rods 9 are provided on each side of the upper arch rod 7, wherein the space between two adjacent film pressing rods 9 is the opening and closing space of the upper top film. In the process, the upper arch rod 7 is provided with an upper top film, and a transition film docking with the upper top film is provided at the lower parts of both ends of the upper arch rod 7. The transition film is fixed by a film pressing rod 9. The upper top film is a transparent PO film. The upper top film is wound on a rotating shaft, and the rotating shaft is set on one end of a rocker rod 10 through a film rolling device. The other end of the rocker rod 10 is rotatably set on the lower beam 2. When the film rolling device drives the rotating shaft to unwind or rewind the upper film, the rocker rod 10 rotates to open and close the upper film. The rotation opening and closing angle of the rocker rod 10 is greater than 80 degrees, and the top opening angle is large, which can achieve good ventilation and heat dissipation effects.

[0039] A lower arch rod 12 is provided between the two adjacent lower longitudinal members 4. The diameter of the lower arch rod 12 is smaller than the diameter of the upper arch rod 7. The position of the lower arch rod 12 at the outermost ends at the two ends along the second direction is the door head position of the inner shed. The door head position is provided with an inner entrance and exit. The door head position of the inner shed is located on the inner side of the door head position of the outer shed. A lower top membrane is provided on the lower arch rod 12, and the lower top membrane is located directly below the upper top membrane. The lower top membrane adopts a special heat-locking energy storage membrane. Film pressing rods 9 are also provided on both sides of the lower arch rod 12. A transition membrane docking with the lower top membrane is also provided at the lower ends of the lower arch rod 12. The transition membrane is fixed by film pressing rods 9. The opening and closing structure driving structure of the lower top membrane is the same as the opening and closing structure driving structure of the upper top membrane. An inner cross beam 13 for installing the lower top membrane rocker rod 10 is provided at the door head position of the inner shed. The rotation opening and closing angle of the rocker rod 10 is also greater than 80 degrees, and the top opening angle is large, which can achieve good ventilation and heat dissipation effects.

[0040] The two outermost main column groups are also provided with side films, which are opened by the side main film rolling mechanism. The side main film rolling mechanism is also a film roll. The upper end of the side film is fixed, and the lower end of the side film is connected to the film roll through a rotating shaft. The film roll is movably arranged on a lifting rod.

[0041] The greenhouse also includes a side insulation layer arranged on the inner side of the side film, the side insulation layer includes multiple side film rods 14 and insulation film arranged on the side film rods 14, and multiple side film rods 14 are arranged in sequence along the second direction. The upper end of the side film rod 14 is fixed on the baffle 6, and the lower end of the side film rod 14 is fixed on the ground. The insulation film is opened by a side auxiliary film rolling mechanism, and the side auxiliary film rolling mechanism is a film roller. The side insulation layer is located on the inner side of the side film, and the side film rod 14 is divided into an integrally formed inclined section, an arc section and a vertical section from top to bottom. The inclined section gradually moves away from the side film during its extension from top to bottom, and the arc section is arc-shaped. The film roller realizes the opening and closing of the insulation film in the vertical section area.

[0042] A secondary column 15 is provided on the main column 1. The outer diameter of the secondary column 15 is smaller than the outer diameter of the main column 1. The lower end of the secondary column 15 is located in the upper water tank 5. The secondary columns 15 between the two adjacent main column groups are connected by an upper crossbeam 16. The upper crossbeam 16 extends along the first direction. In order to improve the structural strength, an oblique support 17 is further connected between the upper crossbeam 16 and the secondary column 15. The secondary columns 15 of the same main column group are connected by a longitudinal beam 11. The longitudinal beam 11 extends along the second direction. A movable beam 18 is provided above the longitudinal beam 11. The movable beam 18 extends along the first direction. There are multiple movable beams 18. The multiple movable beams 18 are sequentially spaced along the second direction. The multiple movable beams 18 are all fixed on multiple parallel connecting rods 19. The movable beam 18 can It moves along the second direction under the action of a driving mechanism. A sunshade cloth 20 is provided on the moving beam 18. Each moving beam 18 is correspondingly provided with a sunshade cloth 20. One end of the sunshade cloth 20 is connected to the moving beam 18, and the other end is fixed on the upper beam 16. The driving mechanism includes a gear, a rack 21 and a motor 22. The gear rotates under the drive of the motor 22. The gear is set on the gear shaft. The gear shaft is connected to the motor 22 through a gear set transmission. The gear is engaged with the rack 21. The rack 21 extends along the above-mentioned second direction. The rack 21 is fixed on the connecting rod 19. Each connecting rod 19 corresponds to a rack 21. Each rack 21 corresponds to a gear. Several gears are set on the same gear shaft, and the gear shaft is rotatably set on the upper beam 16.

[0043] This greenhouse can adapt to temperatures between -10℃ and 40℃, the main frame has a lifespan of more than 20 years, a wind resistance level greater than level 10, and a compressive strength of not less than 200mm of snow. Example 2

[0044] Different from the first embodiment, Figure 6 As shown, the side insulation layer is located outside the side film, and the side film rod 14 is arranged obliquely. The side film rod 14 gradually moves away from the side film during its extension from top to bottom. The side film rod 14 of this structure forms a diagonal supporting force, which can enhance the overall structural strength of the greenhouse. Example 2

[0045] Different from the first embodiment, the side membranes in this embodiment are also replaced by glass side walls.

[0046] It should be understood that in the claims and description of the present utility model, all "including..." should be understood as open-ended, that is, its meaning is equivalent to "at least containing...", and should not be understood as closed-ended, that is, its meaning should not be understood as "only including...".

[0047] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A double-layer fully open roof greenhouse, characterized in that: The invention comprises a plurality of main columns (1), wherein the plurality of main columns (1) are divided into a plurality of main column groups along a first direction, two adjacent groups of main columns (1) are connected by a lower cross beam (2), and the main columns (1) in the main column group are sequentially spaced along a second direction, and the main columns (1) in the main column group are connected by an upper longitudinal member (3) and a lower longitudinal member (4) arranged above and below, and the upper longitudinal member (3) and the lower longitudinal member (4) both extend along the second direction, an upper arch rod (7) is provided between two adjacent upper longitudinal members (3), and a lower arch rod (12) is provided between two adjacent lower longitudinal members (4), an upper top film is provided on the upper arch rod (7), and a lower top film is provided on the lower arch rod (12), and the greenhouse further comprises an upper film rolling mechanism for opening the upper top film and a lower film rolling mechanism for opening the lower top film, and the two main column groups located on the outermost sides are also provided with side films or glass side walls.

2. A double-layer fully open roof greenhouse according to claim 1, characterized in that: The side film is opened by a side main film rolling mechanism.

3. A double-layer fully open roof greenhouse according to claim 1, characterized in that: The greenhouse further comprises a side insulation layer arranged on the inner or outer side of the side film, the side insulation layer comprising a plurality of side film rods (14) and an insulation film arranged on the side film rods (14), the plurality of side film rods (14) being arranged in sequence along the second direction, the upper end of the side film rod (14) being fixed on the lower longitudinal member (4) or the main column (1), the lower end of the side film rod (14) being fixed on the ground, and the insulation film being able to be opened by a side auxiliary film rolling mechanism.

4. A double-layer fully open roof greenhouse according to claim 3, characterized in that: The side insulation layer is located inside the side membrane, and the side membrane rod (14) is divided into an inclined section, an arc section, and a vertical section from top to bottom. The inclined section gradually moves away from the side membrane during its extension from top to bottom, and the arc section is arc-shaped.

5. The double-layer fully open roof greenhouse according to claim 3, characterized in that: The side insulation layer is located outside the side membrane, and the side membrane rod (14) gradually moves away from the side membrane during its extension from top to bottom.

6. A double-layer fully open roof greenhouse according to any one of claims 1 to 5, characterized in that: The upper longitudinal member (3) is provided with a concave upper water trough (5), and the upper arch rod (7) is fixed on the outer side of the upper longitudinal member (3). The lower longitudinal member (4) is provided with a concave lower water trough, and the lower arch rod (12) is fixed on the outer side of the lower longitudinal member (4).

7. A double-layer fully open roof greenhouse according to claim 6, characterized in that: The lower longitudinal member (4) is divided into a first longitudinal member and a second longitudinal member. The two sides of the lower water trough of the first longitudinal member are symmetrically arranged and are both inclined. The first longitudinal member is provided with a plurality of jacks running through the upper and lower parts. The plurality of jacks are arranged in sequence along the length direction of the first longitudinal member. The jacks are used for the main columns (1) to pass through. The two sides of the lower water trough of the second longitudinal member are vertical on one side and inclined on the other side. The inclined side faces inward. The main columns (1) located on the outermost side are connected through the second longitudinal member.

8. The double-layer fully open roof greenhouse according to claim 1, characterized in that: A vertically arranged top rod (8) is provided on the lower cross beam (2), the upper end of the top rod (8) is connected to the upper arch rod (7), and the upper arch rod (7) is symmetrical with respect to the center of the top rod (8).

9. A double-layer fully open roof greenhouse according to any one of claims 1 to 5, characterized in that: A secondary column (15) is provided on the main column (1), and the secondary columns (15) between two adjacent main column groups are connected through an upper crossbeam (16). The upper crossbeam (16) extends in a first direction and is connected to the secondary columns (15) of the main column group through a longitudinal beam (11). The longitudinal beam (11) extends in a second direction. A movable beam (18) is provided above the longitudinal beam (11). The movable beam (18) extends in the first direction and can move in the second direction under the action of a driving mechanism. A sunshade cloth (20) is provided on the movable beam (18), and one end of the sunshade cloth (20) is connected to the movable beam (18), and the other end is fixed.

10. A double-layer fully open roof greenhouse according to claim 9, characterized in that: The driving mechanism comprises a gear, a rack (21) and a motor (22); the gear rotates under the drive of the motor (22); the gear is engaged with the rack (21); the rack (21) extends along the second direction; and the rack (21) is transmission-connected to the moving beam (18).

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