Greenhouse with double-film double-arch structure

Abstract

The utility model discloses a greenhouse with a double-film double-arch structure, and relates to the technical field of greenhouses. The sunshade device comprises stand columns, an inner-layer framework, an outer-layer framework, a sunshade assembly and a ventilation assembly. Vertical column connecting pieces are fixed to the tops of the vertical columns, and outer sunshade vertical columns are fixed to the tops of the vertical column connecting pieces; an inner-layer framework and an outer-layer framework are fixedly installed between the bottom and the top of the stand column connecting piece respectively. A cross beam is fixed between the tops of the outer sunshade stand columns. A sunshade assembly is assembled on the cross beam; the ventilation assembly is fixedly mounted between the inner-layer framework and the outer-layer framework; the sunshade assembly comprises a sunshade curtain and a curtain drawing motor; the ventilation assembly comprises an air blower and a ventilation air duct. And the air blower is fixedly communicated with the ventilation air duct. Under the action of the sunshade assembly and the ventilation assembly, the greenhouse has the advantages that exposure to the sun is avoided, the high temperature degree in summer is reduced to a great extent, and the internal high temperature caused by the fact that external heat at the top of the greenhouse is transferred to the interior is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of greenhouses, in particular to a greenhouse with a double-membrane double-arch structure. Background Art

[0002] The double-film double-arch greenhouse is a special greenhouse structure, mainly used for winter agricultural production, especially in the northern high-cold areas. The main structures of this greenhouse include two types: a double-layer greenhouse with walls and a double-layer greenhouse without walls and inserted into the ground.

[0003] The double-film and double-arch greenhouse is divided into two layers, the outer frame is covered with light-transmitting greenhouse film, the inner frame is covered with waterproof and heat-insulating greenhouse film and heat-insulating straw curtains. Roller shutters and film rolling machines are installed between the double-layer frames, which is conducive to heating and insulation in winter.

[0004] However, the double-film double-arch greenhouses of the existing technology have some disadvantages. For example, when the greenhouse with double-arch double-film structure is exposed to the sun in summer, the internal temperature is high and the efficiency of ventilation and heat dissipation is slow. If the traditional method is adopted, the operation of manually lifting the film for ventilation treatment not only requires a lot of labor, but also takes a long time to operate; if there is less natural wind outdoors, the ventilation efficiency cannot be guaranteed, resulting in unstable ventilation effect and low efficiency.

[0005] In view of the above-mentioned problems, the utility model designs a greenhouse with a double-membrane and double-arch structure. Utility Model Content

[0006] The purpose of the utility model is to provide a greenhouse with a double-membrane and double-arch structure, which can provide shade during summer exposure through the functions of a sunshade component and a ventilation component, and ventilate and dissipate heat inside the double-membrane and double-arch structure, thereby reducing the heat transferred from the top of the greenhouse to the inside, greatly alleviating the high temperature in summer, and reducing the effect of external heat from the top of the greenhouse being transferred to the inside, causing high temperature inside, thereby solving the above-mentioned problems of high temperature exposure and low ventilation efficiency.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a greenhouse with a double-film and double-arch structure, comprising columns, an inner frame, an outer frame, a sunshade assembly and a ventilation assembly; the inner frame and the outer frame are respectively covered with a waterproof and heat-insulating greenhouse film and a light-transmitting greenhouse film; a column connector is fixedly installed on the top of the column, and an outer sunshade column is fixedly installed on the top of the column connector; the inner frame and the outer frame are respectively fixedly installed between the bottom and the top of the two column connectors; a crossbeam is fixedly installed between the tops of the two outer sunshade columns; the sunshade assembly is mounted on the crossbeam; the ventilation assembly is fixedly installed between the inner frame and the outer frame; the sunshade assembly comprises a sunshade curtain and a curtain motor, and the curtain motor controls the unfolding and retraction of the sunshade curtain The ventilation assembly comprises a blower and a ventilation duct; the air outlet of the blower is fixedly connected to the ventilation duct; the ventilation duct is located between the inner frame and the outer frame; wherein the sunshade assembly is used to provide a sunshade effect for the greenhouse to avoid a sharp increase in the temperature inside the greenhouse due to exposure to the sun, and then the high temperature will greatly increase the evaporation in the greenhouse, causing the seedlings to wilt and dry up, etc.; the ventilation assembly ventilates and dissipates heat inside the double-membrane and double-arch structure of the greenhouse, so that the heat on the top of the greenhouse is ventilated and discharged, which can greatly slow down the transfer of heat from the top of the greenhouse to the inside of the greenhouse, and also greatly alleviate the temperature rise of the greenhouse, achieving the effect of ventilation and heat insulation.

[0009] As a preferred technical solution of the utility model, the ventilation component also includes a cylindrical plastic bag, the end of the cylindrical plastic bag is fixed in the ventilation duct; an outlet is opened at the bottom of the cylindrical plastic bag; the cylindrical plastic bag is used to divide the wider internal space of the inner layer skeleton and the outer layer skeleton into a number of narrower ventilation channels, so that a number of air convection channels are directly formed; it has the effect of improving the air exchange and heat dissipation effect; it avoids the situation where only the ventilation ports in the wider internal space of the inner layer skeleton and the outer layer skeleton exchange air, while the air farther away from the ventilation ports fails to form effective ventilation.

[0010] As a preferred technical solution of the utility model, the cylindrical plastic bag is a cylindrical structure in a filled state; the ratio of the outlet width of the cylindrical plastic bag to the inlet width of the cylindrical plastic bag is in the range of: 0.1-0.5; the width of the cylindrical plastic bag is the same as the gap between the inner layer skeleton and the outer layer skeleton; the air outlet of the blower is fixedly connected to the inlet of the cylindrical plastic bag; the cylindrical plastic bag is just stuck on the inner wall of the ventilation duct and divides it into several ventilation channels; in order to make the cylindrical plastic bag full and able to To achieve a separation effect, the outlet size of the cylindrical plastic bag is smaller than the inlet size so that a certain air pressure is maintained inside the bag; wherein, the air outlet of one of the blowers is provided with a first air outlet pipe, and the first air outlet pipe is provided with a plurality of air outlets A, and each of the air outlets A is fixedly connected to the inlet of the cylindrical plastic bag; the air outlet of the other blower is provided with a second air outlet pipe, and the second air outlet pipe is provided with a plurality of air outlets B, and each of the air outlets B is fixedly connected to the ventilation duct outside the cylindrical plastic bag; when it is winter, the ends of the ventilation components are sealed or tied tightly.

[0011] As a preferred technical solution of the utility model, a cross truss is fixedly installed under the inner frame; a plurality of groups of support tubes are evenly fixedly installed between the cross truss and the inner frame; a fan bracket is fixedly installed at the center of the column connector located on the south side of the greenhouse, and a blower is fixedly installed on the fan bracket.

[0012] As a preferred technical solution of the utility model, a sunshade diagonal support rod is fixedly installed between the external sunshade column and the crossbeam; a first rain gutter connecting plate and a first rain gutter connecting reinforcement plate are fixedly installed between the top of the column connecting piece and the bottom of the external sunshade column; a second rain gutter connecting plate is fixedly installed between the bottom of the column connecting piece and the top of the column.

[0013] As a preferred technical solution of the utility model, a fan unit is also fixedly installed on one side of the column located on the south side of the greenhouse.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model can provide shade during summer sun exposure through the functions of sunshade components and ventilation components, and ventilate and dissipate heat inside the double-membrane double-arch structure to reduce the heat transfer from the top of the greenhouse to the inside. It has the advantages of avoiding sun exposure and greatly alleviating the high temperature in summer, as well as alleviating the high temperature caused by the external heat transfer from the top of the greenhouse to the inside.

[0016] 2. The utility model, through the function of ventilation components and fan units, relies on the cylindrical plastic bags in a full state to divide the ventilation duct into several narrower ventilation channels, so as to directly form several ventilation channels for air convection, and the fan unit provides ventilation function for the interior of the greenhouse; it has the advantages of improving the ventilation efficiency in the ventilation duct, reducing the ventilation pressure burden of the fan unit and improving the heat insulation effect.

[0017] 3. The utility model improves the waterproof and rainproof effect of the greenhouse with double membrane and double arch structure through the functions of the first rain gutter connecting plate, the first rain gutter connecting reinforcing plate and the second rain gutter connecting plate.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the south structure of a greenhouse with a double-film double-arch structure of the utility model in Example 1;

[0021] Figure 2 It is a cross-sectional view of the middle structure of a greenhouse with a double-film double-arch structure of the utility model in Example 1;

[0022] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0023] Figure 4 It is a structural cross-sectional view of the inner frame and the outer frame in the middle of a greenhouse with a double-membrane double-arch structure of the utility model in Example 1;

[0024] Figure 5 It is a cross-sectional view of the south side structure of the blower and the ventilation duct in the inner layer frame and the outer layer frame in the first embodiment;

[0025] Figure 6 It is a cross-sectional view of the south side structure of the blower and the cylindrical plastic bag in the inner layer frame and the outer layer frame in Example 1;

[0026] Figure 7 It is a cross-sectional view of the middle structure of a greenhouse with a double-film double-arch structure of the utility model in Example 2;

[0027] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0028] Fig. 9 It is a schematic diagram of the exploded structure of the column connecting member and the first rain gutter connecting plate and the second rain gutter connecting plate in the second embodiment;

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1-column, 2-inner frame, 3-outer frame, 4-sunshade assembly, 5-ventilation assembly, 6-fan unit, 101-column connector, 102-outer sunshade column, 103-crossbeam, 104-fan bracket, 105-sunshade diagonal support rod, 106-first rain gutter connecting plate, 107-first rain gutter connecting reinforcement plate, 108-second rain gutter connecting plate, 201-cross truss, 202-support pipe, 401-sunshade curtain, 402-curtain motor, 501-blower, 502-ventilation duct, 503-cylindrical plastic bag, 504-export. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment 1

[0033] See also Figure 1-6As shown, the utility model is a greenhouse with a double-film double-arch structure, including columns 1, an inner frame 2, an outer frame 3, a sunshade assembly 4 and a ventilation assembly 5; the inner frame 2 and the outer frame 3 are covered with a waterproof and heat-insulating greenhouse film and a light-transmitting greenhouse film respectively; a column connector 101 is fixedly installed on the top of the column 1, and an outer sunshade column 102 is fixedly installed on the top of the column connector 101; the inner frame 2 and the outer frame 3 are fixedly installed between the bottom and the top of the two column connectors 101 respectively; a crossbeam 103 is fixedly installed between the tops of the two outer sunshade columns 102; the crossbeam 103 is equipped with a sunshade assembly 4; the ventilation assembly 5 is fixedly installed between the inner frame 2 and the outer frame 3; the sunshade assembly 4 includes a sunshade curtain cloth 401 and a curtain motor 402, and the curtain motor 402 controls The unfolding and storage of the sunshade curtain 401; the ventilation component 5 includes a blower 501 and a ventilation duct 502; the air outlet of the blower 501 is fixedly connected to the ventilation duct 502; the ventilation duct 502 is located between the inner frame 2 and the outer frame 3; wherein, the sunshade component 4 is used to provide a sunshade effect for the greenhouse to avoid a sharp increase in the internal temperature of the greenhouse due to exposure to the sun, and then the high temperature will greatly increase the evaporation in the greenhouse, causing the seedlings to wilt and dry up and other hazards; the ventilation component 5 will ventilate and dissipate the heat inside the double-membrane and double-arch structure of the greenhouse, so that the heat on the top of the greenhouse is ventilated and discharged, which can greatly slow down the transfer of heat from the top of the greenhouse to the inside of the greenhouse, and also greatly alleviate the temperature rise of the greenhouse, achieving the effect of ventilation and heat insulation.

[0034] Among them Figure 4-6As shown, the ventilation component 5 also includes a cylindrical plastic bag 503, the end of the cylindrical plastic bag 503 is fixed in the ventilation duct 502; an outlet 504 is opened at the bottom of the cylindrical plastic bag 503; the cylindrical plastic bag 503 is used to divide the wider internal space of the inner layer skeleton 2 and the outer layer skeleton 3 into four narrower ventilation channels, so that four air convection channels are directly formed, and the three cylindrical plastic bags 503 will also increase the ventilation efficiency; it has the effect of improving air exchange and heat dissipation; it is avoided that only the ventilation ports in the wider internal space of the inner layer skeleton 2 and the outer layer skeleton 3 are used for air exchange, while the air farther from the ventilation ports fails to form an effective ventilation effect, and the cylindrical plastic bag 503 is in a filled state and has a cylindrical structure; the ratio of the width of the outlet 504 of the cylindrical plastic bag 503 to the inlet width of the cylindrical plastic bag 503 is in the range of: 0.1-0.5; the width of the cylindrical plastic bag 503 is in the range of: 0.1-0.5 The gaps at the positions of the racks 3 are the same; the air outlet of the blower 501 is fixedly connected to the entrance of the cylindrical plastic bag 503; the cylindrical plastic bag 503 is just stuck on the inner wall of the ventilation duct 502 and divides it into four ventilation channels; in order to make the cylindrical plastic bag 503 full and achieve a separation effect in the blowing state, the outlet size of the cylindrical plastic bag 503 is smaller than the inlet size, so that a certain air pressure is maintained inside it; wherein, the air outlet of one blower 501 is provided with a first air outlet pipe, a plurality of air outlets A are opened on the first air outlet pipe, and each air outlet A is fixedly connected to the entrance of the cylindrical plastic bag 503; the air outlet of the other blower 501 is provided with a second air outlet pipe, a plurality of air outlets B are opened on the second air outlet pipe, and each air outlet B is fixedly connected to the ventilation duct 502 outside the cylindrical plastic bag 503; when it is in winter, the ends of the ventilation assembly 5 are sealed or tied.

[0035] Among them Figure 1-2 As shown, a transverse truss 201 is fixedly installed below the inner frame 2; three groups of support tubes 202 are evenly fixedly installed between the transverse truss 201 and the inner frame 2; a fan bracket 104 is fixedly installed at the center of the column connector 101 located on the south side of the greenhouse, and a blower 501 is fixedly installed on the fan bracket 104; a fan unit 6 is also fixedly installed on one side of the column 1 located on the south side of the greenhouse.

[0036] Embodiment 2

[0037] A more preferred technical solution based on the first embodiment is as follows: Figure 7-9As shown, a sunshade inclined support rod 105 is fixedly installed between the outer sunshade column 102 and the crossbeam 103; its function is to strengthen the stability of the installation structure; a first rain gutter connecting plate 106 and a first rain gutter connecting reinforcement plate 107 are fixedly installed between the top of the column connecting piece 101 and the bottom of the outer sunshade column 102; a second rain gutter connecting plate 108 is fixedly installed between the bottom of the column connecting piece 101 and the top of the column 1; its function is to improve the waterproof and rainproof effect of the greenhouse with a double-membrane double-arch structure.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A greenhouse with a double-film double-arch structure, comprising columns (1), an inner frame (2), an outer frame (3) and a sunshade assembly (4); the inner frame (2) and the outer frame (3) are respectively covered with a waterproof heat-insulating greenhouse film and a light-transmitting greenhouse film; the characteristics are: Also includes a ventilation assembly (5); A column connector (101) is fixedly mounted on the top of the column (1), and an external sunshade column (102) is fixedly mounted on the top of the column connector (101); An inner frame (2) and an outer frame (3) are respectively fixedly installed between the bottom and top of the two column connectors (101); a crossbeam (103) is fixedly installed between the tops of the two outer sunshade columns (102); a sunshade assembly (4) is mounted on the crossbeam (103); and the ventilation assembly (5) is fixedly installed between the inner frame (2) and the outer frame (3); The sunshade assembly (4) comprises a sunshade curtain (401) and a curtain-pulling motor (402), and the curtain-pulling motor (402) controls the unfolding and folding of the sunshade curtain (401); The ventilation assembly (5) comprises a blower (501) and a ventilation duct (502); the air outlet of the blower (501) is fixedly connected to the ventilation duct (502); and the ventilation duct (502) is located between the inner layer frame (2) and the outer layer frame (3).

2. A greenhouse with a double-film double-arch structure according to claim 1, characterized in that: The ventilation assembly (5) further comprises a cylindrical plastic bag (503), the end of which is fixed in the ventilation duct (502); an outlet (504) is provided at the bottom of the cylindrical plastic bag (503).

3. A greenhouse with a double-film double-arch structure according to claim 2, characterized in that: The cylindrical plastic bag (503) is in a cylindrical structure when in a filled state; the ratio of the width of the outlet (504) of the cylindrical plastic bag (503) to the width of the inlet of the cylindrical plastic bag (503) is in the range of 0.1-0.

5.

4. The greenhouse with double membrane and double arch structure according to claim 2 is characterized in that: The air outlet of the blower (501) is fixedly connected to the inlet of the cylindrical plastic bag (503).

5. The greenhouse with double membrane and double arch structure according to claim 1, characterized in that: A transverse truss (201) is fixedly installed below the inner layer frame (2); a plurality of groups of support pipes (202) are evenly fixedly installed between the transverse truss (201) and the inner layer frame (2); a fan bracket (104) is fixedly installed at the center of the column connecting piece (101) located on the south side of the greenhouse, and a blower (501) is fixedly installed on the fan bracket (104).

6. The greenhouse with double membrane and double arch structure according to claim 1, characterized in that: A sunshade oblique support rod (105) is fixedly installed between the outer sunshade column (102) and the crossbeam (103); a first rain gutter connecting plate (106) and a first rain gutter connecting reinforcing plate (107) are fixedly installed between the top of the column connecting piece (101) and the bottom of the outer sunshade column (102); and a second rain gutter connecting plate (108) is fixedly installed between the bottom of the column connecting piece (101) and the top of the column (1).

7. The greenhouse with double membrane and double arch structure according to claim 1, characterized in that: A fan unit (6) is also fixedly installed on one side of the column (1) located on the south side of the greenhouse.

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