CN2648803Y

CN2648803Y - Agricultural greenhouse

Info

Publication number: CN2648803Y
Application number: CNU2003201111742U
Authority: CN
Inventors: 张景拴
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-05
Filing date: 2003-11-05
Publication date: 2004-10-20
Anticipated expiration: 2013-11-05

Abstract

The utility model discloses a novel agricultural greenhouse, which aims at the deficiencies of the unreasonable structure and poor performance of the heat preservation for the existing northern greenhouses. A framework of the greenhouse is a south-north framework consisting of three-column and a plurality of rows of hollow cement pillars and arc beams arranged on three pillars of each row. The outer side of the framework of the greenhouse is paved and provided with a plastic outer membrane layer, and the inner side of the framework is fixed with a plastic inner membrane layer along the pillars at two sides. A plastic inner membrane which can be rolled up is paved on a support beam of a greenhouse roof. The greenhouse roof and two sides of a greenhouse body are respectively provided with ventilation holes. The ventilation hole is provided with an insect prevention net. The utility model has good heat preservation effect, and the number of layers of the plastic membrane of the greenhouse can be adjusted according to the change of the temperature with reasonable structure, long light receiving time, high utilization rate of the space, good sealing performance, and the pollution-free green cultivation can be implemented and a plurality of layers and three-dimensional combination of the plant and cultivation can be realized.

Description

The novel agricultural booth

Affiliated technical field

The utility model relates to a kind of plastic tunnel, especially a kind of insulation and good sealing effect, the novel agricultural booth that space availability ratio is high.

Background technology

At present, in plant husbandry and aquaculture, greenhouse and plastic tunnel are generally adopted in the winter protection in winter, insulation, but the booth that adopts is generally the individual layer insulation construction, just on frame, lay the individual layer insulation film, heat-insulating property is poor, it is warming also to need to add a cover straw screen or mat night, so just makes the frame of booth increase load, easily causes frame tower waist to damage and reduces service life, in addition, it is a face wall that existing scaffolding structure mostly is the canopy head, and frame is shorter, and the booth space is little, only suitable individual layer plantation, availability is low.

Summary of the invention

The utility model provides a kind of high insulating effect, and can adjust the number of plies of greenhouse film according to variation of temperature, and rational in infrastructure, it is long to receive light application time, and the space availability ratio height is fit to layer stereo plantation and breed.

The technical scheme that the utility model adopted is: it constitutes by laying plastic film on the big-canopy framework, described big-canopy framework is by the hollow cement column of three row plurality of rows and be located at the frame of the south-north direction that the arched girder on every row's three root posts forms, on every arched girder, be provided with lacing wire, the infall of lacing wire and middle standing pillar is locked by locking device, between the upper end of this infall and two heel posts, be arranged with brace summer, one end of every brace summer is fixed on the middle standing pillar, the other end is fixedly connected on the top of side uprights, be equipped with one deck plastics adventitia in the outside of described big-canopy framework, side is fixed with one deck plastic envelope along two heel posts within it, on brace summer, be equipped with plastic envelope, the upper end of this plastic envelope is fixedly connected on the middle standing pillar, its fixedly connected roller bearing in bottom, the two ends of roller bearing are provided with stay cord, junction at brace summer and middle standing pillar is provided with pulley, and stay cord passes from pulley.

The plastic envelope of laying on described brace summer is two-layer, and two-layer inner membrance forms a sealing inflating cells, and the upper end of chamber is provided with air inlet and exhaust outlet, this air inlet be located at the escape pipe of middle standing pillar and communicate with the carbon-dioxide generator of lacing wire infall; The described exhaust ports of being located at the inflating cells upper end is provided with one-way cock; Above described inflating cells outside, be provided with the spacing line of elasticity.

The air vent that is crisscross arranged on the plastic film at two ends up and down in the booth both sides, the air vent place is equipped with fly net, is provided with adjustable sliding window at the air vent place; Middle part at the plastics adventitia at described booth top is provided with air vent, and the air vent place is provided with fly net, is provided with air exhausting device at this air vent place.

The outside at the booth column is provided with a circle cement plate along column, and interior 20-40 centimetre of soil is imbedded in the lower end of cement plate, and the height that bassets is 40-60 centimetre.

The utility model big-canopy framework is by the hollow cement column of three row plurality of rows and be located at the frame of the south-north direction that the arched girder on every row's three root posts forms, when the span of frame is 20 meters, height can reach 5 meters, the space is big in the canopy, can carry out layer stereo breeding combination, and only be provided with the canopy head on north, and other three faces are plastic film, and it is long to receive light application time.The outside and inboard at big-canopy framework all are equipped with plastic film, form double-layer film structure, brace summer place at booth is equipped with the double-layer plastic inner membrance, form three layers of insulation film like this at the ceiling place, high insulating effect, the fixedly connected roller bearing in the bottom of the plastic envelope of on brace summer, laying, the two ends of roller bearing are provided with stay cord, when weather warms, the plastic envelope on the brace summer can be rolled like this.

Be equipped with air vent at ceiling and canopy body both sides, the place is provided with fly net at air vent, is provided with a circle cement baffle plate in the outside of booth column along column, can prevent climbing into of muroid or other insects like this, form the booth of a good sealing effect, can carry out nuisanceless, green planting.

So the utility model high insulating effect, and can adjust the number of plies of greenhouse film according to variation of temperature, rational in infrastructure, it is long to accept light application time, the space availability ratio height, and good seal can carry out the nuisanceless green plantation, realizes layer stereo breeding combination.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a structural representation of laying inner membrance on the utility model brace summer.

Embodiment

As Fig. 1, shown in Figure 2, the utility model constitutes by laying plastic film on the big-canopy framework, described big-canopy framework is by the hollow cement column 6 of three row plurality of rows and be located at the frame of the south-north direction that the arched girder 3 on every row's three root posts forms, on every arched girder 3, be provided with lacing wire 2, lacing wire 2 is locked it by angle bar with the infall of middle standing pillar, certainly also can adopt other locking modes, between the upper end of locking place and two heel posts, be arranged with brace summer 4, one end of every brace summer 4 is fixed on the middle standing pillar, the other end is fixedly connected on the top of heel post, be equipped with one deck plastics adventitia 1 in the outside of described big-canopy framework, side is fixed with one deck plastic envelope 7 along two heel posts within it, on brace summer 4, also be equipped with plastic envelope 12, this plastic envelope 12 is two-layer, two-layer inner membrance forms a sealing inflating cells, the upper end of described two-layer inner membrance is connected on the middle standing pillar, its fixedly connected roller bearing 5 in bottom, the two ends of roller bearing 5 are provided with stay cord 13, junction at brace summer 4 and middle standing pillar is provided with pulley 14, stay cord 13 passes from pulley 14, described chamber the upper end be provided with an air inlet 16 and several exhaust outlets 17, this air inlet 16 be located at the escape pipe of middle standing pillar and communicate with the carbon-dioxide generator 15 of lacing wire infall, 17 places are provided with one-way cock at exhaust outlet, can only exhaust, can not air inlet.Carbonic acid gas can be charged in the described inflating cells like this, increase heat insulation effect, when the inner membrance on the brace summer 4 12 was rolled, the carbonic acid gas in the chamber was extruded under the effect of roller bearing 5, enters booth, can promote plant growth.At the spacing line 18 of the outer setting elasticity of inflating cells, this spacing line is located at top, inflating cells outside, be arranged in parallel with brace summer 4, like this, when inflation inflating cells is had a restriction, makes the inflatable chamber indoor gas even.

Middle part at the plastics adventitia 1 at described booth top is provided with air vent 11, and 11 places also are provided with ventilating fan at air vent; On the plastic film of booth both sides, be interval with air vent 8 near the column top end, also be interval with air vent 8 on the plastic film on cement plate, and be crisscross arranged with top air vent, be equipped with fly net 10 at all air vent places, 8 places also are provided with adjustable sliding window at air vent.

The outside at the booth column is provided with a circle cement plate 9 along column, and interior 20-40 centimetre of soil is imbedded in the lower end of cement plate 9, and the height that bassets is 40-60 centimetre, can prevent the intrusion of muroid or other insects.

Claims

1, a kind of novel agricultural booth, constitute by laying plastic film on the big-canopy framework, it is characterized in that: described big-canopy framework is by the hollow cement columns of three row plurality of rows (6) and be located at the frame of the south-north direction that the arched girder (3) on every row's three root posts forms, on every arched girder (3), be provided with lacing wire (2), lacing wire (2) is locked by locking device with the infall of middle standing pillar, between the upper end of this infall and two heel posts, be arranged with brace summer (4), one end of every brace summer (4) is fixed on the middle standing pillar, the other end is fixedly connected on the top of side uprights, be equipped with one deck plastics adventitia (1) in the outside of described big-canopy framework, side is fixed with one deck plastic envelope (7) along two heel posts within it, on brace summer (4), be equipped with plastic envelope (12), the upper end of this plastic envelope is fixedly connected on the middle standing pillar, its bottom fixedly connected roller bearing (5), the two ends of roller bearing (5) are provided with stay cord (13), junction at brace summer (4) and middle standing pillar is provided with pulley (14), and stay cord (13) passes from pulley (14).

2, novel agricultural booth according to claim 1, it is characterized in that: it is two-layer going up the plastic envelope (12) of laying at described brace summer (4), two-layer inner membrance forms a sealing inflating cells, the upper end of chamber is provided with air inlet (16) and exhaust outlet (17), and this air inlet (16) communicates with the escape pipe of being located at the carbon-dioxide generator (15) of middle standing pillar with the lacing wire infall.

3, novel agricultural booth according to claim 2 is characterized in that: the described exhaust outlet (17) of being located at the inflating cells upper end locates to be provided with one-way cock.

4, novel agricultural booth according to claim 2 is characterized in that: be provided with the spacing line of elasticity (18) above described inflating cells outside.

5, novel agricultural booth according to claim 1 is characterized in that: the air vent (8) that is crisscross arranged on the plastic film at two ends about the booth both sides, air vent (8) locates to be equipped with fly net, locates to be provided with adjustable sliding window at air vent (8).

6, novel agricultural booth according to claim 1 is characterized in that: the middle part at the plastics adventitia at described booth top is provided with air vent (11), and air vent (11) locates to be provided with fly net (10), locates to be provided with air exhausting device at this air vent (11).

7, novel agricultural booth according to claim 1 is characterized in that: the outside at booth column (6) is provided with a circle cement plate (9) along column, and interior 20-40 centimetre of soil is imbedded in the lower end of cement plate (9), and the height that bassets is 40-60 centimetre.