CN201219396Y - Sunlight greenhouse - Google Patents

Abstract

The utility model discloses a sunlight greenhouse, which has heat-insulating earth walls on its northwest and east sides, a north wall top that is a double-layer grounded covered sloped surface facing south, a support strip under each layer, an openable ventilation seam on each sloped surface, a film pressing strip on the upper sloped surface, a door for entering and exiting the greenhouse on the heat-insulating earth wall, the greenhouse is composed of an above-ground part and a ground part below the ground, effectively utilizing a geothermal heat source, a distance between two sloped surfaces on the north wall top that is greater than a distance between two plastic film surfaces at a grounded location, the upper sloped surface is a transparent plastic film, the lower sloped surface is a heat-insulating layer, and the heat-insulating effect is very good, since the main materials used in the greenhouse are plastic film and iron wire, and the excavated soil can be piled up to form northwest and east heat-insulating walls, no additional materials are needed, the cost is low, and it is easy to promote.

Description

a sun shed

technical field

The utility model relates to an agricultural structure, in particular to a solar greenhouse.

Background technique

At present, the energy-saving solar greenhouse commonly used in my country is a single-layer solar greenhouse with three thick earth walls in the northwest and east as the support and insulation structure of the top structure of the greenhouse, and plastic film as the top covering material of the greenhouse. It has been popularized in the Xujin area of the country. . There is also a double-layer solar greenhouse, that is, the Chinese patent application No. 200410010037.9 that I applied for in 2004 is an invention patent for a solar greenhouse and a method for building the solar greenhouse. It has the following advantages: it can keep warm, windproof, rainproof and snowproof. But also there are following defects in the actual use process: the heat preservation effect cannot reach the best, and it is also inconvenient to maintain.

Contents of the invention

The purpose of the utility model is to provide a solar greenhouse with good heat preservation effect and convenient maintenance.

The purpose of this utility model can be achieved through the following measures:

There are thermal insulation earth walls on the northwest, east and three sides of this utility, and the top of the north wall is a double-layer ground-covered slope surface to the south. There are laminated strips on the surface, and there are doors to enter and exit the greenhouse on the insulating soil wall. The greenhouse is composed of the above-ground part and the ground part below the ground. The ground part of the greenhouse is more than 1 meter lower than the ground. The excavated soil mound forms an insulating earth wall on the three sides of the northwest and east sides. The distance between the two layers of slope surfaces on the top of the north wall is greater than the distance between the two layers of slope surfaces at the ground, which effectively utilizes geothermal heat. It is a transparent plastic film, and the slope-shaped surface of the lower floor is an insulating layer.

Above-mentioned sunlight greenhouse, is plastic film below the thermal insulation layer.

In the solar greenhouse mentioned above, the material of the insulation layer is any one of cotton felt, old fiber or straw curtain. .

Above-mentioned sunlight greenhouse, along the south side of the ground surface of the upper layer slope surface is a cold-proof ditch, and the inside of the cold-proof ditch is straw.

For the aforementioned solar greenhouse, the south side of the cold-proof ditch is a rain and snow storage ditch, and the upper edge of the south side of the rain and snow storage is the ground. The acute angle formed allows rain and snow to slide down naturally, and is conducive to sunlight.

The solar greenhouse mentioned above is provided with an antelope at the northeast corner or northwest corner of the greenhouse, which is convenient for people to place tools.

In the above-mentioned solar greenhouse, a toilet ditch is provided between the two layers of sloping surfaces in the greenhouse, which is convenient for people to roll up or spread the insulation layer.

Above-mentioned sunlight greenhouse is provided with a windbreak wall on the top of the north wall, and the windbreak wall is also made of excavated soil. The windbreak wall is higher than the upper transparent plastic film, and the windbreak wall can reduce the wind force.

Constitute the basic structure numerical value of the present utility model to be:

a. The minimum distance between the double-layer transparent plastic film is 10-30cm. The support bar is one iron wire fixed at both ends of the east and west. 11-13 iron wires fixed at the ends;

b. The upper layer of plastic film is 3.5m away from the greenhouse floor, and the greenhouse floor is 1.5m lower than the ground floor. The length of the greenhouse is as required, and the width is 7m;

c. Height × width of the anti-cold ditch along the south side of the transparent plastic film grounding surface = (20-30) cm × (20-30) cm;

d. Height × width of the rain and snow storage ditch on the south side of the anti-cold ditch = (0.8-1.2)m × (0.8-1.2)m;

e. Height × width of the toilet ditch between two layers of plastic film = (0.7-1.2)m × (0.7-1.2)m;

f. Height × width × length of ear chamber = (2.0-2.5)m × (2.0-2.5)m × (2.0-2.5)m;

g. The height of the windbreak wall is 0.4m-0.8m.

Because the utility model adopts double-layer sloping surfaces with a thermal insulation layer in the middle, the thermal insulation effect is very good. The ground of the greenhouse is 1 meter below the ground, and the ground temperature heat source is used. Putting straw in the cold-proof ditch can prevent the heat in the greenhouse from passing through. The permafrost is lost, and the acute angle between the plane formed by the upper edge of the rain and snow storage ditch and the grounding line of the transparent plastic film and the greenhouse ground is smaller than the acute angle formed by the sun's rays and the ground at noon on the winter solstice, which is conducive to sunlight. In terms of wind protection: Since the ground in the greenhouse is more than 1 meter lower than the ground, the above-ground part is small, and the wind-receiving area is small to provide wind protection, and the wind protection wall on the north insulation wall can also reduce the wind force. In terms of rain and snow protection , the upper slope-shaped plastic film surface is easy for rain and snow to fall naturally. Dig a drainage ditch between the cold-proof ditch and the rain and snow storage ditch, and backfill it after draining the water. Or grass curtains, etc., the ear room in the greenhouse is convenient for people to place labor tools, because the main materials used in this greenhouse are plastic film and iron wire, and the excavated soil can be piled into the northwest and east insulation walls, no other materials are needed, the cost is low, and it is convenient promote.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

The utility model is described in detail below in conjunction with accompanying drawing and embodiment:

As shown in Fig. 1, a kind of sunlight greenhouse has insulating earth walls on the three sides of the northwest and east sides, and the top of the north wall 2 is a slope-shaped surface covered by double-layer grounding to the south. Support strips 7, laminated strips 8 on the upper plastic film, openable ventilation joints 3 on the slope surface of each layer, and doors for entering and exiting the greenhouse on the insulating soil wall. The greenhouse is composed of the above-ground part and the ground below the ground Partial composition, the distance between the two slope surfaces on the top of the north wall is greater than the distance between the two slope surfaces at the ground, the upper slope surface is a transparent plastic film, the lower slope surface is the insulation layer 5, and the insulation layer 5 is cotton felt. It can also be old fibers or straw curtains.

Above-mentioned sunlight greenhouse, below the thermal insulation layer 5 is a plastic film 10, along the south side of the slope-shaped surface of the upper layer is a cold-proof ditch 9, the inside of the cold-proof ditch 9 is straw, and the south side of the cold-proof ditch 9 is a rain and snow storage ditch 11, and the rain and snow are in the slope shape. The surface slides down into the rain and snow storage ditch 11, the upper edge of the south side of the rain and snow storage ditch 11 is the ground, and the acute angle A formed by the plane formed by the upper edge of the south side of the rain and snow storage ditch and the grounding line of the transparent plastic film and the greenhouse ground is smaller than that formed by the sun's rays and the ground at noon on the winter solstice day. The acute angle B is such an angle that is conducive to sunlight. An ear room 12 is provided at the northeast corner or northwest corner of the greenhouse to facilitate people to place tools. A toilet ditch 13 is provided between the two slope-shaped surfaces in the greenhouse to facilitate people to roll up or Lay insulation layer, be provided with windbreak wall 1 on the north wall top, windbreak wall is higher than upper strata transparent plastic film 4, and windbreak wall can reduce wind force.

The working principle of the utility model is as follows: the utility model mainly utilizes double-layer heat preservation and utilizes ground temperature heat source, the heat preservation effect is good, and the cost is low, and it is easy to popularize. In arid areas, rain and snow storage ditch and cotton felt can also be omitted.

Claims (8)

1. A solar greenhouse. There are insulation earth walls on the northwest, east and west sides. The top of the north wall is a double-layer ground-covered slope surface to the south. There are support strips under each layer, and there are openable ventilation on each slope surface. There are laminated strips on the slope surface of the upper layer, and there are doors for entering and exiting the greenhouse on the insulation wall. It is greater than the distance between the two slope surfaces at the grounding point, the upper slope surface is a transparent plastic film, and the lower slope surface is an insulating layer. 2. The solar greenhouse according to claim 1, characterized in that there is a slope-shaped plastic film under the insulation layer. 3. The solar greenhouse according to claim 2, characterized in that: the material of the insulation layer is any one of cotton felt, old fiber or straw curtain. 4. The solar greenhouse according to claim 3, characterized in that: the south side of the ground surface along the upper sloping surface is a cold-proof ditch, and the inside of the cold-proof ditch is straw. 5. The solar greenhouse according to claim 4, characterized in that: the south side of the anti-cold ditch is a rain and snow storage ditch, the upper edge of the south side of the rain and snow storage is the ground, and the plane formed by the upper edge of the south side of the rain and snow storage ditch and the grounding line of the transparent plastic film is in contact with the greenhouse. The acute angle formed by the ground is smaller than the acute angle formed by the sun's rays and the ground at noon on the winter solstice. 6. The solar greenhouse according to claim 5, characterized in that: there is an ear room at the northeast or northwest corner of the greenhouse. 7. The solar greenhouse according to claim 6, characterized in that: a toilet ditch is provided between the two layers of sloped surfaces in the greenhouse. 8. The solar greenhouse according to claim 7, characterized in that: a windproof wall is arranged on the upper part of the north wall.

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