CN2090157U

CN2090157U - Dual-layer aerated composite plastic film for greenhouse

Info

Publication number: CN2090157U
Application number: CN 90223532
Authority: CN
Inventors: 周荣松
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-11-09
Filing date: 1990-11-09
Publication date: 1991-12-11

Abstract

The utility model relates to a dual-layer aerated composite plastic film for greenhouses, which can be manufactured by volume. A plurality of clinkering wires or points are formed between the two layers of plastic films by the hot-pressing welded method, the two layers of plastic films are connected together by the clinkering wires or points, and the interlayer space between the two layers of plastic films is divided into a plurality of smaller and aerated interlayer spaces which are mutually communicated. After aerated bulging, the utility model has the advantage of favorable thermal insulation and heat-insulating performance, and the microclimate of the covered space can be improved obviously. The utility model can be used as heat-preserving covering material of the greenhouses for planting crops and the animal houses for the overwintering of animals.

Description

Dual-layer aerated composite plastic film for greenhouse

The present invention's a kind of double-deck inflatable composite plastic canopy film that is used for the cladding material of crop-planting booth etc. of touching upon.

Existing crop-planting booth adopts single layer plastics films as cladding material.The thickness of this monolayer plastic canopy film is the 0.1-0.2 millimeter, and its heat preservation and insulation is very poor, and therefore, heat outwards scatters and disappears easily in the canopy, can not improve the microclimate in plant growth space in the canopy effectively, and is little for the effect that improves crop yield.

In view of the shortcoming of above-mentioned monolayer plastic canopy film, task of the present invention provides a kind of double-deck inflatable composite plastic canopy film that can aeration drum plays thereby have good heat preservation and insulation that is made of two layers of plastic thin films.

The present invention realizes like this, the continuous tubulose that blows out at plastic film blowing machine and through flattening and becoming on the basis of bilayer film, adopt the method for hot pressing welding between two layers of plastic thin films, to form some straight line or the curvilinear clinkering lines of arranging according to certain rules, perhaps form the clinkering point that several are arranged according to certain rules, the network that these clinkering lines or point are formed permanently fuses two layers of plastic thin films, and the mezzanine space between the two layers of plastic thin films is divided into several inflatable mezzanine space zones less but that communicate with each other.The inflatable composite plastic canopy of this bilayer film can by plastic processing factory rolling create, using the needed length of on-the-spot intercepting, end in the intercepting section is installed a valve that is used to inflate, and the air-tightness involution is all made at two ends that will the section of intercepting, cover then on the frame, fill air by valve to mezzanine space with compressor.

The inflatable composite plastic canopy of bilayer of the present invention film, owing to have bigger damping action for heat transfer after the mezzanine space inflation bulges, can stop the interior heat of canopy outwards to scatter and disappear effectively, therefore, can significantly improve the microclimate in plant growth space in the canopy, and improve the output of crop.The inflatable composite plastic canopy of this bilayer film also can be used for the survive the winter thermal insulated material for covering of livestock shed etc. of livestock and poultry.

Specific embodiments of the present invention now is illustrated in conjunction with the accompanying drawings.

Fig. 1 is the front view of the double-deck inflatable composite plastic canopy film of one section of intercepting.Among the figure, the 1st, the clinkering line, they are parallel to each other, and with the sealing strip of plastic film along perpendicular; The 2nd, the sealing strip edge of plastic film; The 3rd, the position that valve is installed; The 4th, the air-tightness involution line at intercepting section two ends.

Fig. 2 is the A-A profile.Among the figure, the 5th, the mezzanine space zone of having inflated; The 6th, plastic film.

Fig. 3 is the B-B profile.

Fig. 4 is the intercepting section of the sealing strip of each clinkering line and plastic film along the double-deck inflatable composite plastic canopy film of the α that has angle.α can be 0-90 ° a unspecified angle.

Fig. 5 is the intercepting section of the double-deck inflatable composite plastic canopy film of the clinkering point of several regular arrangements of formation between the two layers of plastic thin films.Among the figure, the 7th, three clinkering points wherein.

Fig. 6 is that the clinkering line is the intercepting section of the double-deck inflatable composite plastic canopy film of curve shape.

Fig. 7 is that the clinkering line is the intercepting section of the double-deck inflatable composite plastic canopy film of another kind of curved arrangement form.

Claims

1, a kind of double-deck inflatable composite plastic canopy film of the cladding material that is used for crop-planting booth etc. that can the rolling manufacturing, two layers of plastic thin films with edge sealing, it is characterized in that between the two layers of plastic thin films permanently fusing by being formed with some clinkering lines that rule arranges or clinkering point, these clinkering lines or clinkering point are divided into several inflatable mezzanine space zones less but that communicate with each other with the mezzanine space between the two layers of plastic thin films.