CN215683716U

CN215683716U - Greenhouse roof structure with ventilation window

Info

Publication number: CN215683716U
Application number: CN202122182334.3U
Authority: CN
Inventors: 田学书
Original assignee: Taizhou Suzhong Horticulture Co ltd
Current assignee: Taizhou Suzhong Horticulture Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-01
Anticipated expiration: 2031-09-09

Abstract

The utility model relates to the technical field of greenhouse planting greenhouses, in particular to a greenhouse roof structure with ventilation windows, which comprises two groups of arc-shaped arches and the ventilation windows arranged at the tops of the arches, wherein the arches are of asymmetric structures and comprise long arches positioned on the windward side and short arches positioned on the leeward side, and the length of the long arches is greater than that of the short arches; the ventilation window sets up on short bow member and the membrane is rolled up in the outside cover, and the ventilation window comprises a plurality of groups fixed connection's arc pole, bracing piece and connecting rod, and the region that bracing piece and connecting rod enclose is the vent, and the ventilation volume of vent is adjusted to the switching of rolling up the membrane that the membrane control vent department covered through rolling up. The utility model can rapidly ventilate, cool and dehumidify the inside of the greenhouse, has simple and convenient operation and low manufacturing cost, is beneficial to improving the integral wind resistance of the greenhouse, and can solve the problems of easy damage and aging of a plastic film at a top vent, water holding, high maintenance cost, poor wind resistance of the greenhouse and the like of the existing greenhouse.

Description

Greenhouse roof structure with ventilation window

Technical Field

The utility model relates to the technical field of greenhouse planting greenhouses, in particular to a greenhouse roof structure with ventilation windows.

Background

The multi-span greenhouse is an economical greenhouse, the top of the greenhouse is generally in a circular arch shape, and the multi-span greenhouse has the advantages of good heat insulation performance, low manufacturing cost, attractive and elegant appearance, high space utilization rate, intelligent management and the like, and is suitable for most areas in China. The greenhouse needs to carry out proper ventilation according to the change of the temperature and the humidity inside the greenhouse in the using process, the indoor temperature and humidity are adjusted, the photosynthesis and respiration rate of crops in the greenhouse are improved, the air quality of the greenhouse is improved, the dehumidification purpose is achieved under the high-humidity climate condition, the requirements of the crops in different growth periods are met, and therefore the ventilation problem of the greenhouse is very important for crop cultivation. At present, a multi-span greenhouse mainly performs windowing ventilation at the top of the greenhouse, and a plastic film positioned at the top of the greenhouse is separated by adopting a pull rope mode or a film rolling device mode to expose a ventilation opening, but the problem of water holding is easily caused in rainy and snowy weather due to the small gradient of the plastic film; or adopt the arch top of laminating greenhouse, the perpendicular to windward side, set up the mode of vent in gutter limit position, utilize the pressure of windward side to blow in greenhouse outside air in the greenhouse inside and take a breath, this kind of setting is at the vent of windward side, the windage at greenhouse top has been increased, strong wind weather is unfavorable for the steadiness of greenhouse, and the plastic film that covers at the vent is opened and closed easily repeatedly, it also needs a large amount of manpower and materials to change the plastic film at top, the maintenance cost has been increased. In addition, in order to prevent harmful insects from entering the greenhouse to influence the growth of crops, a dense insect-proof net is usually arranged at the position of the window opening, and as the outdoor air is often accompanied with impurities such as worm eggs, dust, cotton wool and the like, when the window opening is arranged on the windward side, the insect-proof net is easy to block in the long-term use process, if the window opening is not cleaned in time, the ventilation effect of the window opening is seriously influenced, and the normal growth of the crops in the greenhouse is further influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides the greenhouse roof structure with the ventilation window, which is low in manufacturing cost, capable of quickly ventilating, cooling and dehumidifying the interior of the greenhouse, simple and convenient to operate, beneficial to improving the overall wind resistance of the greenhouse, and capable of solving the technical problems of poor top ventilation, easy breakage and aging of plastic films, water containing, high maintenance cost, poor wind resistance of the top of the greenhouse, easy blockage of insect prevention nets and the like in the conventional greenhouse.

In order to solve the technical problem, the technical scheme of the utility model is realized by the following modes:

a greenhouse roof structure with ventilation windows comprises two groups of arc-shaped arches and ventilation windows arranged at the tops of the arches, wherein the arches are of asymmetric structures and comprise long arches positioned on the windward side and short arches positioned on the leeward side, the length of the long arches is larger than that of the short arches, the top ends of the long arches are fixedly connected with the top ends of the short arches, and the bottom ends of the long arches and the bottom ends of the short arches are respectively and fixedly connected with stand columns of a greenhouse; the ventilation window is arranged on the short arch frame and is covered with a rolling film, the ventilation window is composed of a plurality of groups of arc-shaped rods, supporting rods and connecting rods, the arc-shaped rods are fixedly connected with the long arch frame, one ends of the arc-shaped rods are fixedly connected with the long arch frame, the other ends of the arc-shaped rods are fixedly connected with the supporting rods, the supporting rods are vertically arranged, the bottom ends of the supporting rods are fixedly connected with the arc surface of the short arch frame, the area surrounded by the supporting rods and the connecting rods is a ventilation opening, and the ventilation volume of the ventilation opening is adjusted by controlling the opening and closing of the rolling film covered at the ventilation opening through the rolling film machine.

Furthermore, the arches adopt an arc upper-lower chord type truss structure, and the upper chords and the lower chords of each group of arches are connected by welding a plurality of groups of steel frames which are arranged in a triangular mode.

Further, the vent is also provided with an insect-proof net, and the insect-proof net covers the lower part of the roll film. The pests are prevented from entering the greenhouse, and the problem of insect damage of crops in the greenhouse is reduced.

Furthermore, the elevation angle of the short arch is 30-80 degrees.

Further, the film rolling machine is installed on the arch frame.

Further, the outer part of the arch is covered with a sunshade curtain.

Furthermore, the structural materials of the arch center and the ventilation window are galvanized steel pipes, so that the structural strength and the corrosion resistance effect of the greenhouse are improved, and the service life is prolonged.

Compared with the conventional greenhouse roof structure, the greenhouse roof structure with the ventilation windows provided by the utility model has the following beneficial effects:

(1) according to the utility model, the asymmetric arch frame structure is arranged at the top of the greenhouse, the ventilation window is vertically arranged on the short arch frame of the leeward side, the air inlet amount of the ventilation opening is controlled by controlling the opening and closing of the film roll vertically covered at the ventilation opening, so that ventilation, cooling and dehumidification are carried out on the interior of the greenhouse, and the operation is simple and convenient.

(2) Compared with the traditional symmetrical arch structure, the utility model can improve the internal space of the greenhouse, reduce the height of the greenhouse, reduce the wind resistance at the top of the greenhouse, improve the structural strength and the bearing capacity of the roof, and improve the integral wind resistance of the greenhouse.

(3) The utility model adopts the design that the leeward side is provided with the vertical ventilation opening, the windward side can be maximized, the negative pressure area generated by the leeward side is utilized to accelerate air convection, the damp and hot air gathered at the top of the greenhouse is quickly discharged out of the room to exchange with the outside air, the purposes of quickly cooling and dehumidifying are achieved, the wind resistance at the top of the greenhouse can be reduced as much as possible from the structural mechanics, the wind resistance of the roof is improved, the light-transmitting area in the greenhouse cannot be influenced, and the lighting of the cultivated crops cannot be influenced. Simultaneously, the design of the arc-shaped rod at the top of the ventilation window can prevent rain and snow from entering the room, thereby being beneficial to the quick drainage of the top, being difficult to cause the problem of roof film damage caused by water trapping and being beneficial to reducing wind resistance. The insect-proof net is arranged at the vertical ventilation opening of the leeward side, so that pests can be effectively reduced from entering the greenhouse, and the phenomenon that the blocking occurs due to excessive accumulation of dust, sundries and the like caused by the dead wind direction is avoided, thereby avoiding influencing the ventilation effect of the ventilation opening.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic perspective view of a greenhouse roof structure with ventilation windows in accordance with the present invention;

fig. 2 is a schematic side view of a greenhouse roof structure with ventilation windows according to the utility model.

Description of reference numerals: 1. an arch frame; 11. a long arch frame; 12. a short arch frame; 13. an upper chord frame; 14. a lower chord frame; 2. a ventilation window; 21. an arcuate bar; 22. a support bar; 23. a connecting rod; 24. a vent; 3. a column; 4. rolling the film; 5. a film rolling machine; 6. a beam frame.

Detailed Description

The preferred embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it should be understood that the embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the utility model.

Examples

As shown in fig. 1, the present embodiment provides a roof structure of a greenhouse with ventilation windows, which includes two sets of arc-shaped arches 1 and ventilation windows 2 provided on the tops of the arches 1. The structural materials of the arch center 1 and the ventilation window 2 are galvanized steel pipes. As shown in fig. 2, the arch 1 is an asymmetric structure, and includes a long arch 11 located on the windward side and a short arch 12 located on the leeward side, the length of the long arch 11 is greater than that of the short arch 12, the top end of the long arch 11 is fixedly connected with the top end of the short arch 12, and the bottom end of the long arch 11 and the bottom end of the short arch 12 are respectively fixedly connected with the upright posts 3 of the greenhouse. The short arch 12 has an elevation angle of 60 degrees. The arch center 1 adopts an arc upper-lower chord type truss structure, and the upper chord 13 and the lower chord 14 of each group of arch center 1 are connected by welding a plurality of groups of steel frames which are arranged in a triangular mode.

As shown in fig. 2, the louver 2 is disposed on the short arch 12 and covered with the roll film 4 on the outside, and the roll film machine 5 is mounted on the arch 1. As shown in fig. 1, the ventilation window 2 is composed of a plurality of groups of arc-shaped rods 21, support rods 22 and connecting rods 23 which are fixedly connected. The shape of the arc-shaped rod 21 is the same as that of the long arch 11, one end of the arc-shaped rod 21 is fixedly connected with the long arch 11, the other end of the arc-shaped rod 21 is fixedly connected with the supporting rod 22, the supporting rod 22 is vertically arranged, and the bottom end of the supporting rod is fixedly connected with the arc surface of the short arch 12. The cambered surfaces of the long arch 11 and the short arch 12 are also provided with a plurality of groups of reinforcing ribs which are parallel to each other, the shapes of the reinforcing ribs are the same as that of the upper chord 13, and the bottom ends of the reinforcing ribs are fixed on a cross beam frame 6 of the greenhouse. The area enclosed by the support rod 22 and the connecting rod 23 is a vent 24, and the ventilation quantity of the vent 24 is adjusted by controlling the opening and closing of the film winding 4 covered on the vent 24 through the film winding machine 5. In addition, the ventilation opening 24 of the present embodiment is further provided with an insect-proof net, and the insect-proof net covers the lower side of the roll film 4. The arch frame 1 is covered with a sun-shading curtain.

When the inside needs aeration cooling of greenhouse, roll up the membrane rolling that covers the vent outward through rolling up the membrane machine, hot-air outgoing in the greenhouse, outside air gets into, reaches the cooling effect, and the inside air convection circulation that forms of greenhouse simultaneously realizes the inside and outside air exchange in greenhouse, when need not cool down the ventilation or need keep warm, will roll up the membrane and expand and cover the vent. Because the hot air is easy to gather at the top of the greenhouse when rising, the utility model utilizes the principle that the leeward side forms a negative pressure area which is beneficial to accelerating the air convection, and arranges the ventilation window on the leeward side of the asymmetric arch frame, thereby automatically and quickly discharging the damp and hot air in the greenhouse to the outdoor, reducing the temperature and humidity in the greenhouse, and simultaneously not causing the blockage to the wind volume of the windward side of the adjacent greenhouse roof in the multi-span greenhouse design.

Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The greenhouse roof structure with the ventilation windows is characterized by comprising two groups of arc-shaped arches (1) and the ventilation windows (2) arranged at the tops of the arches (1), wherein the arches (1) are of asymmetric structures and comprise long arches (11) positioned on the windward side and short arches (12) positioned on the leeward side, the length of the long arches (11) is larger than that of the short arches (12), the top ends of the long arches (11) are fixedly connected with the top ends of the short arches (12), and the bottom ends of the long arches (11) and the bottom ends of the short arches (12) are respectively fixedly connected with upright posts (3) of a greenhouse; the ventilation window (2) is arranged on the short arch frame (12) and is externally covered by a rolling film (4), the ventilation window (2) is composed of a plurality of groups of arc-shaped rods (21), supporting rods (22) and connecting rods (23) which are fixedly connected, the arc-shaped rods (21) are identical to the long arch frame (11), one ends of the arc-shaped rods (21) are fixedly connected with the long arch frame (11), the other ends of the arc-shaped rods are fixedly connected with the supporting rods (22), the supporting rods (22) are vertically arranged, the bottom ends of the supporting rods are fixedly connected with the arc surface of the short arch frame (12), an area surrounded by the supporting rods (22) and the connecting rods (23) is a ventilation opening (24), and the ventilation amount of the ventilation opening and closing of the rolling film (4) covered at the ventilation opening (24) is controlled through a film rolling machine (5).

2. Greenhouse roof structure with ventilation windows according to claim 1, characterized in that the arches (1) are arc-shaped truss structures with upper and lower chords, and the upper chords (13) and the lower chords (14) of each set of arches (1) are welded together by sets of steel frames arranged in a triangular manner.

3. Greenhouse roof structure with ventilation windows according to claim 1, characterized in that at the ventilation openings (24) there is also placed an insect net, which is covered under the rolled film (4).

4. Greenhouse roof structure with ventilation windows according to claim 1, characterized in that the short arches (12) have an angle of elevation of 30-80 degrees.

5. Greenhouse roof structure with ventilation windows according to claim 1, characterized in that the film-rolling machine (5) is mounted on the arch (1).

6. Greenhouse roof structure with ventilation windows according to claim 1, characterized in that the arches (1) are covered externally with a sun screen.

7. Greenhouse roof structure with ventilation windows according to claim 1, characterized in that the structural material of the arches (1) and ventilation windows (2) is galvanized steel pipe.