Adjustable pitch screening system for greenhouses

FIELD: agriculture, in particular, screening systems for greenhouses used in agricultural production, farms and house plots.

SUBSTANCE: screening system has additional bars in reduced length spans, said bars being out of connection with drive and mounted for progressive movement in parallel with main bars of greenhouse screening system. Carriers are secured on screening beam of previous span of greenhouse, above additional bars for supporting the latter. Carriers may be equipped with rollers. Such construction ensures predetermined mutual arrangement of previous span beam and additional bar during displacement thereof relative to one another and provides support for free end of additional bar. Stops are secured on additional bars on both sides of carrier at distance therebetween providing free movement for carrier upon displacement of screening beam of previous span. Free movement is adjusted by displacement of stops on additional bars, and value of said movement should provide reduced screening pitch of reduced span of greenhouse.

EFFECT: increased efficiency and enhanced reliability in operation of screening apparatus.

2 cl, 4 dwg

 

The invention relates to structures, systems curtaining greenhouses and can be applied in the agricultural industry, as well as in farms and individual greenhouses.

In the system curtaining greenhouses sometimes it is necessary to provide some spans (for example, end walls diminished in comparison with the rest of the stairs, move the curtain of the screen. This is caused by the passage about the end walls of the greenhouse vertical pipes stormwater Sewerage and heating systems that do not allow beams curtaining to come to the end wall and stretch the curtain screen for the entire length of the extreme span greenhouses. In addition, in some greenhouses are glass partitions between compartments, spaced from the axis of the columns at some distance into the room and reduce by that amount the extreme length of the span in the Department.

It is known device [1] system curtaining extreme spans representing the beam curtain, attached to it one end of a curtain that is installed on the rod system curtaining in the zone extreme flight using the roller carriages. The videos cover the rod and compresses it using the springs that connect the friction force greater than the force required to stretch the curtain of the screen.

In this unit at the beginning of the movement is of the rods system curtaining beam curtaining extreme flight starts to move and stretch the curtain screen. When reaching the stop limiting the stroke, or other obstacles in the extreme migration occurs effort to overcome the rolling friction in the rollers of the carriage, and mounted on the carriage beam curtaining extreme migration stops. At the same time rod attached to them beams curtaining the remaining spans of the greenhouse by prokachivanija of carriage rollers continue to move, thereby providing a full zastarevanje all other spans of the greenhouse.

The disadvantage of this technical solution is the complex construction of the carriage with rollers and an increase in the required drive power, because when you approach the extreme beams to focus requires additional force to overcome the friction in the roller carriages, which by its size obviously must be greater than the force required to stretch of curtain screen at migration. In addition, such a system cannot be applied in the presence of partitions, reducing the span length, as this system reduces the speed of the beam of the curtain and the rod, having a length of full span, continue to move the entire length of the span and rest against the wall, creating an emergency situation.

Closest to the claimed device in its technical essence is a curtaining system [2], which is parallel to the main rod systems is curtaining greenhouses in extreme flights are additional rod, not associated with the actuator and extending at least two spans. Additional rods are mounted in the guides, with the possibility of translational motion. On a beam curtaining previous span greenhouses on additional rods are fixed leashes, and the extra rods on both sides of the leash fastened resistant clamps so that the distance between them provided free running of the leash when the motion of the beam curtaining the previous span. This allows moving the rods with exposed beams in all other spans greenhouses on the entire length of the passage to reduce the stroke of additional rods at migration and stop short beam curtaining to obstacles (e.g. walls). Does not have to overcome the additional loads during operation, since the force required for stretching curtain screen extreme span greenhouses.

The disadvantage of this technical solution is increased, the length of the additional rods (not less than two lengths of the span) and, consequently, the sagging of the free cantilever end of the additional rods in one of the end positions, which in some cases can be a hindrance to the work. In addition, there is provided a certain relative positions of the leash and additional rod, allowing in some cases, additional is sustained fashion bar with thrust collars to exit the coverage area of the leash, creating an emergency.

The results of the patent search by country: Russia, Holland, Denmark, Germany, France did not reveal such patented technical solutions.

The purpose of this invention is to provide a reliable device curtaining reduced-span greenhouses with adjustable stroke, not having the disadvantages of the known technical solutions.

This goal is achieved by the fact that in the inventive system curtaining with reduced spans more rods not connected with the drive and installed with the possibility of translational motion along the direction of movement of the curtain, on a beam curtaining previous flight over the additional rods are fixed leashes (which may have rollers), additional support rod and having the possibility of relative movement. This provides a certain relative positions of the leash and additional rods during their relative movement, and is the backbone of the free end of the additional rod. For extra rods on both sides of the leash fixed stops so that the distance between them provided free running leash on additional rod during movement of the beam curtaining previous flight, minimizing the progress of curtaining humanising the span greenhouses.

The proposed technical solution, in contrast to the known, helps to ensure reliable operation of the system and requires no additional drive power. Zastarevanje reduced span leash is included into contact with lugs for extra rods. As well as between stops, there is a certain distance, it provides the necessary reduction in stroke. The leash is always in sliding contact with an additional rod, providing some of their mutual arrangement and being both support the free end of the additional rod that allows you to make the lengths equal to the length of one span, with a small excess for placing extreme emphasis. This interaction elements requires no additional drive power.

Figure 1 shows a fragment of a curtain greenhouses in the plan.

Figure 2 shows a section along the main rod system curtaining greenhouses.

Figure 3 shows a section through an additional rods system curtaining reduced-span greenhouses.

Figure 4 shows the performance of the site leads with clips.

System curtaining greenhouses contains the actuator, for example a rack and pinion gear 1, which are connected to the main rod 2 mounted in guides 5 with the possibility of translational motion and carry a beam pastor is of 3 mounted on one edge of the curtain of the screen 4. The second edge of the screen fixedly mounted on farms greenhouses (figure 2). Parallel to the main rod 2 in a reduced span greenhouses in the guide 5 install additional rod 6, is not associated with the actuator. For extra rods mounted beam curtaining 7 reduced-span greenhouses and has two stops 8, between which is placed the leash 9 (possibly with rollers 10), mounted on the beam curtaining 3 previous span, supporting additional rod and included in the movement alternately into contact with the stops 8 (figure 3). The distance between the stops 8 provides a free running leash 9, through which decreases in the course of screening reduced span.

Through the whole greenhouse parallel to the movement of the curtain with a certain step tense strings 11 supporting curtain screen in space flight. These strings are additional supporting element for beams curtaining 3 and 7.

The principle of the device system curtaining with adjustable stroke next. When the system is turned on curtaining greenhouses begin to move the main rod 2 with beams attached to them curtaining 3, thereby stretching curtain screen in the span greenhouses. Leash 9, moving with the beam curtaining 3 previous flight, overcomes the gap L between the lugs. This is optional rod 6 is fixed. Once the leash in his movement will come into contact with the stop 8, will start moving and the additional rod 6 attached to them beam curtaining 7 reduced span and will begin a stretch of curtain screen reduced-span greenhouses. Moreover, the course of the screening will be less than the value of the free motion of the lead 9. When folding curtain screen process is repeated, with the leash 9 depart from the first stop 8 and overcome the gap L between the lugs 8 will come into contact with the second stop. As a result, the folding curtain screen reduced the migration will be performed with reduced speed and will return to the same position from which it started stretching of the screen.

The actuator 1, the guides 5, the supporting elements 11 curtaining system mounted on the structural frame of the greenhouse (farm) 12.

In figure 1, 2 and 3 shows the axis 13, 14, 15, 16, 17, 18, 19, 20, 21 span greenhouses.

The action of the main rod 2 connected to the actuator 1, extends to all spans of the greenhouse and ends in the span between the axles 14 and 13. In the span between the axles 14 and 13 working beam 7, mounted on the additional rod 6 connected with the main system through the lead 9 and the lugs 8, and therefore the leash, additional support arm is mounted on the beam 3 in the span between the axes 14 and 15, and figure 2 shows that this beam is secured to the main piece is nge 2, posted in guide 5 fixed on a farm along the axis 15.

Istochniki information

1. Diagram of the system of the firm VAN DER VALK SYSTEM, the Netherlands (figure 5).

2. Patent No. 2152708, Russia.

1. The device system curtaining greenhouses with adjustable stroke, containing not associated with the drive of an arm fixed on them beam curtaining reduced span greenhouses installed with the possibility of translational motion parallel to the direction of movement of the curtain, and on each additional rod has two adjustable stops between which is located a leash, attached to a beam curtaining previous span greenhouses and in turn part of the contact when the movement stops, the distance between which ensures free running leash, reducing the speed of the beam curtaining reduced-span greenhouses, characterized in that the leash is made in the form of additional support rod member with the opportunity the free movement of additional bars in the leash.

2. The device according to claim 1, characterized in that the leash has videos covering additional rod.



 

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Greenhouse // 2087091

FIELD: agriculture, in particular, screening systems for greenhouses used in agricultural production, farms and house plots.

SUBSTANCE: screening system has additional bars in reduced length spans, said bars being out of connection with drive and mounted for progressive movement in parallel with main bars of greenhouse screening system. Carriers are secured on screening beam of previous span of greenhouse, above additional bars for supporting the latter. Carriers may be equipped with rollers. Such construction ensures predetermined mutual arrangement of previous span beam and additional bar during displacement thereof relative to one another and provides support for free end of additional bar. Stops are secured on additional bars on both sides of carrier at distance therebetween providing free movement for carrier upon displacement of screening beam of previous span. Free movement is adjusted by displacement of stops on additional bars, and value of said movement should provide reduced screening pitch of reduced span of greenhouse.

EFFECT: increased efficiency and enhanced reliability in operation of screening apparatus.

2 cl, 4 dwg

FIELD: agriculture.

SUBSTANCE: invention refers to agriculture. Method involves cutting of furrow in soil, installation of tray into it, seed sowing, transplanting into soil and watering through holes made at tray bottom. Waterproof screen with grooves made on one of side edges is placed between side walls of tray and inclination is given to it in direction of grooves.

EFFECT: method allows protecting plants against glased rain and provides control of plant watering owing to atmospheric moisture.

1 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to polymer compositions for making fluorescent and selectively radiation-absorbing films, which transform the ultraviolet component of natural or artificial light into radiation in the red region, which can be used in agriculture to coat greenhouses and soil when growing plants. The light-correcting polymer film contains a photoluminescent phosphor and a light-stabiliser, where the photoluminescent phosphor is yttrium phosphate-vanadate-borate activated with europium and/or yttrium phosphate vanadate activated with europium, and the light stabiliser is Tinuvin 622. The composition for making a light-correcting polymer film contains yttrium phosphate-vanadate-borate activated with europium and/or yttrium phosphate-vanadate activated with europium - 1.0-5.0 wt %, Tinuvin 622 - 1.0-3.0 wt % and high-pressure polyethylene - the rest. Composition is in form of granules which are a concentrate of modifying additives in a polymer matrix.

EFFECT: longer service life of the film.

8 cl, 1 dwg, 5 tbl, 4 ex

FIELD: agriculture.

SUBSTANCE: invention relates to coverage for a greenhouse or similar fabrics, designed essentially for horizontal application and for the temperature stratification of the air space under the roof of the greenhouse. The invention also relates to the method for manufacturing of this coating. The coverage contains meshes of sheet material that are joined together back to back, or overlay with sewn threads in the longitudinal and transverse directions, which form a network, at least on one side of the sheet material.

EFFECT: implementation prevents execution of drops of condensation, provides energy saving.

8 cl, 2 dwg

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, namely to the means of growing plants out of soil in a confined space with an artificially created environment. Complex comprises several aeroponic and/or hydroponic units, thermal energy accumulators in the form of heat-insulated water tank, attached to a wind power installation. Each aeroponic and/or hydroponic unit is made of a transparent material, which can be polycarbonate with LSE additive. These units are equipped with a separate mortar nodes with interconnected thermally insulated storage tanks for sludge and preparation of nutrient solution, tank for fertilizer and have separate connected to the control unit control panels with sensors and actuators. Each aeroponic unit is provided with solution sprayers, connected to the supply line of compressed air from the wind power plant. Each tank for the preparation of the nutrient solution is connected by the thermally insulated pipeline to the thermally insulated tank.

EFFECT: possibility of simultaneous growth of various plants is provided.

5 cl, 1 dwg

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