HU208860B - Ventilating device for foil-tents - Google Patents

Abstract

Field of the Invention The present invention relates to a ventilation apparatus, a metal-framed plant for agricultural use, preferably a foil tile (7). The essence of the present invention is to provide openings for doors (8) and containers (1) openable on the top of the foil tent (7) and / or on the end wall (s), where the containers (1) for the plumbing (3) are arranged. , preferably connected to a hose, the opening arrangement (s) on the axis of rotation (4) in their center of gravity are rotatably disposed in the openings formed in the boundary walls of the foil tent (7). Figure 2 EN 208 860 B Scope of the description: 8 pages (including 3 sheets)

Description

BACKGROUND OF THE INVENTION The present invention relates to a ventilation device, a metal-framed production apparatus used in agriculture, preferably to foil tents (7).

It is an object of the present invention that door and window arrangements comprising openings and closures (8) and containers (1) which can be opened and closed on the top of the foil tent (7) and / or on the end wall (s) are arranged. , preferably connected to a hose, the door and window assembly (s) are rotatably disposed in openings in the boundary walls of the foil tent (7) on a pivot axis (4) centered on their center of gravity.

Figure 2

HU 208 860 B

Description: 8 pages (including 3 pages)

HU 208,860 Β

BACKGROUND OF THE INVENTION The present invention relates to a venting device, preferably an automatic venting device for foil tents.

Mechanical equipment for metal-framed film tents commonly used in horticulture is generally designed to provide heating and irrigation for film tents. János Karai: Building Engineering in Growing Plants c. The book, published in 1979 by the Academy's publishing house, details the equipment for heating and irrigating metal-framed tents. Heating and irrigation of foil tents is thus a solved problem, but there is no solution to ventilate these metal-framed foil tents or to automate the ventilation.

Of course, various ventilation arrangements for greenhouses are known, but they are not applicable to film tents, given that the steel frame of the film tents has a low load-bearing capacity, relatively high mobility and plastic wrapping polyethylene film. not applicable to foil tents.

However, there is a great need for ventilation of the various production equipment, which is necessary every season. Various plant cultures require the right temperature and humidity, especially at the time of harvesting and harvesting. Even a one-time overheating with a lack of ventilation is sometimes enough to reduce crop yields, but in unfavorable cases the whole crop can be ruined.

In conventional ventilation, the gardener is usually left to open the appropriate surfaces. However, this requires constant supervision and attention, and this can be particularly critical in the spring days.

It is also known that the positional energy of water can be used for many purposes. An element filled with water is practically a weight gain, which can be used for moving.

It is an object of the present invention to provide a ventilation device which provides adequate ventilation of foil tents, which is easy to implement and provides safe and adequate ventilation of foil tents.

The inventive ventilation apparatus has been developed based on the discovery that using a relatively simple, non-sensitive mechanism for ventilating foil tents instead of a complicated mechanical arrangement can significantly improve its reliability. The easiest way to apply water is to fill and empty a tank with water, which is relatively easy to use, with the use of properly flexible tubing, eliminating the need for specially laid pipes and other fittings.

The invention thus relates to a ventilation device, a metal-frame production device used in agriculture, preferably for foil tents.

The essence of the ventilation device according to the invention is that door and window arrangements comprising openable and lockable doors and tanks on the top of the foil tent and / or on the end wall (s) are arranged, wherein the tanks are connected to water pipes, preferably hoses; they are pivotally disposed in apertures formed in the boundary walls of the tent on their axis of rotation.

The device according to the invention is also advantageous if the water supply pipe is provided with a filling and discharge tap via a T-branch.

Also preferred is an embodiment of the apparatus according to the invention wherein a filling and discharge solenoid valve is connected to a T-branch connected to the water pipe, which solenoid valves are connected to a control device operated counterclockwise.

Also preferred is an embodiment of the apparatus according to the invention, wherein the solenoid valves are connected to the morse contacts of a relay known per se, or wherein the thermostat is provided with a known timing circuit for intermittent operation of the solenoid valves.

An embodiment of the apparatus according to the invention is also preferred, wherein the axis of rotation is at the center of gravity of the doors and windows and a counterweight is connected to each arm.

The invention will now be described in more detail in the accompanying drawings, in which:

Figure 1 illustrates a foil tent having a door and window on the end wall, which is an exemplary embodiment of the invention,

Figure 2 shows another embodiment of the invention, wherein the door and window are arranged on top of a foil tent, and the door and door operation is different from the exemplary embodiment shown in Figure 1;

Figure 3 is a schematic diagram of an actuator arrangement for use with the exemplary embodiment of both Figure 1 and Figure 2.

Referring now to Figure 1, Figure 1 is a schematic drawing of a foil tent (7) placed on the floor, the door tent having a door (8) on its end face so that a center of rotation (4) is formed at the center of gravity of the door (8); connected to this axis of rotation is a door actuator (8) consisting of a water-filled container (1) and a counterweight (2). A water pipe (3) is connected to the container (1), which is preferably a hose which can then be guided along the walls of the foil (7).

Fig. 2 shows an embodiment of the invention in which the door (8), which can also be rotated about an axis of rotation (4), is formed on the top of the foil (7) but here the container (1) is directly ) mounted on the frame structure of the door and window, and the axis of rotation (4) is centered on the door and window arrangement formed by the door (8) and the container (1). Also found is the water pipe (3) which

The HU 208 860 Β may also be a hose which can be guided along the walls of the foil tent (7).

Figure 3 shows an exemplary embodiment of an automatic actuator for both the embodiment shown in Figure 1 and Figure 2. Here, the number of containers (1), which may be any number, is determined by the size and volume of the foil tent (7). The tanks (1) are connected to the common water pipe (3), which is provided with a branch (T) in the path of the water pipe (3) and connected to it by two solenoid valves (5 and 6). (3), and the solenoid valve (6) can drain the water (3), i.e. drain it. The operation of the solenoid valves (5 and 6) is controlled by the Morse contacts (9) which are the output contacts of a thermostat relay (10) known per se. The thermostat (10) comprises a temperature sensor on which the temperature can be set on a scale, a disconnecting transformer and a low-voltage relay, the control coil of which is operated by the thermostat (10), the relay (9) having morse contacts. (5 and 6) for controlling solenoid valves. The relay in the thermostat (10) also performs galvanic isolation between the sensor and the actuators. It is also clearly shown in Fig. 3 that the solenoid valves (5 and 6) cannot be switched on at the same time, since two contacts of the morse contacts (9) are used for switching.

1-3. The operation of the apparatus shown in Figs.

There are as many doors and windows (8) on the top and end walls of the foil (7) to be heated as to ensure proper heat retention and ventilation of the foil (7). The doors and windows (8) are controlled by adjusting the temperature to be provided in the foil tent (7) on the thermostat (10) and the Morse contact (9), depending on whether or not to be ventilated, or (5) or (6) opens the solenoid valve. When the solenoid valve (5) is open, the pressurized water flows into the solenoid valve (5) in the direction indicated by the arrow, which fills the tanks (1) through the water pipe (3) where the air is compressed and Containers filled with water are capable of tilting the door (8) to the open position. If the thermostat (10) detects that a suitable temperature change has taken place, the morse contact (9) is switched, the solenoid valve (6) opens and the water (3) also discharges in the direction indicated by the arrow (1). tanks. When the tanks (1) are emptied of water, they close the door (8), i.e. tilt it to the closed position.

The thermostat (10) may also be configured with a timing circuit which opens and closes the relay for the morse contacts (9) periodically, optionally periodically. For example, an intermittent mode of operation is possible with a door (8) open for 30 seconds and closed for 30 seconds.

The doors and windows (8) themselves can be designed in several forms and can be arranged in several places. The windows above the existing doors (8) can be provided or, if necessary, the entire end wall can be opened, and any number of windows in which the doors (8) are located can be formed on the top of the foil tent (7).

However, it is provided in each case, and this applies to both embodiments, so that the rotation, i.e. the axis of rotation (4), is located in the center of gravity. This allows large surfaces to be moved with relatively low force, and can be safely closed at high wind speeds in vertical (8) doors and windows.

The arrangement also ensures that the door (8), when open, only provides resistance to the wind pressure with its edge, while in the closed state it is possible to ensure an adequate stable closure.

Of course, if one does not want to use the thermostat (10), for example, a thermostat manufactured by MMG may find it difficult to use solenoid valves (5 and 6), or simply operate the unit and provide ventilation by supplying one of the two ends of the branch (T) to the water pipe (3). places a tap that is manually operated. This, of course, does not allow for high precision control, but it also provides a solution when needed, since the advantage of this solution is that it does not contain any defective element, the water pipe (3) can be a simple hose, the tanks (1) none of these fail.

Even in automatic mode, using the thermostat (10) and solenoid valves (5 and 6), there is very little potential for failure, maintenance is essentially only cleaning, and there is little retrofitting to existing foil tents (7) install. The operating medium of the mechanism is water, which does not carry any risk of accident and does not contaminate the environment in the event of a malfunction; user, so you can irrigate an area with the drainage water. Of course, this amount is only a fraction of the amount of water used for irrigation per day. Water and power connections are of course required to operate the automatic ventilation, the entire unit consumes very little, only 3.5W, and the thermostat itself (10) can be placed anywhere, inside the foil tent (7) or outside if necessary, covered.

The advantage of the device according to the invention is therefore that it is extremely simple to design, can be retrofitted to any foil tent (7), is safe and non-hazardous, does not pollute the environment, and provides well-controlled ventilation.

HU 208,860 Β

Claims (6)

PATENT CLAIMS Ventilation equipment, metal-frame growing equipment used in agriculture, preferably for foil tents, characterized in that door and window arrangements consisting of openable and closing doors (8) and containers (1) on the top of the foil tent 5 and / or on the end wall (s). where the tanks (1) are connected to a water line (3), preferably to a hose, the door / window arrangement (s) are rotatably disposed in apertures formed in the boundary walls of the foil tent (7) at their center of gravity. Apparatus according to claim 1, characterized in that the water pipe (3) is provided with two filling and discharge taps 15 through a T-branch. Apparatus according to claim 1 or 2, characterized in that a filling and discharge solenoid valve (5,6) is connected to the T-branch connected to the water supply pipe (3), which is a counter-actuated controller for the solenoid valves (5, 6). is connected to equipment. 4. Device according to any one of claims 1 to 3, characterized in that the solenoid valves (5, 6) are connected to the morse contacts (9) of a relay of a thermostat (10) known per se. 5. Apparatus according to any one of claims 1 to 3, characterized in that the thermostat (10) is also provided with a self-timing circuit for intermittent operation of the solenoid valves (5, 6). 6. Apparatus according to any one of claims 1 to 3, characterized in that the axis of rotation (4) is centered on the doors and windows (8) and is connected to it on each arm by the container (1) and a counterweight (2).