Device for fastening glass in greenhouses
(57) Abstract:The invention relates to agriculture, in particular to a device for fastening glass in greenhouses. Technical challenge is the reliable fixation of the glasses when they are of different thickness. The device includes profile, connected to a plate with a bent piece, the ends of shelves which are associated with the surfaces of the glass. Strap is made from a material with elastic properties, and its bending angle equal 130-170o. Profile can be made in the form of the retainer plate, and the width and length of the last made in the ratio of 1:12-30, with its length equal to the width of the glass. The device allows you to quickly and simply replace the glass in the repair of greenhouses and improve its operational reliability. 1 C.p. f-crystals, 2 Il. The invention relates to agriculture, in particular to devices for fastening glass in greenhouses.A device for fastening glass in greenhouses containing profile bracket, coupler connected with the clamping element in the form of strips of curved profile, the ends of shelves which are conjugate with the surface of the glass (see patent UK N 572247, IPC E 04 D 3/08, 1945).The disadvantage know who and or rubber seals. Waterproof mastic during solidification rigidly connects the glass to the crate, which leads to cracks in the glass when snow or wind loads. Rubber seals are short-lived, complex, and inefficient.It is also known a device for fastening glass in greenhouses containing bearing profile, connected to a plate with a bent piece, the shelves of which form with each other an obtuse angle, and their ends and bearing profile associated with the respective surfaces of glass, these shelves elastically pulled through the screed relative to the surface of the glass, and the profile can be made in the form of a clamping plate (see patent of Russian Federation N 2065687, IPC A 01 G 9/14, publ. 27.08.96 year).With sufficient simplicity and reliable operation of the known device in its manufacture it is necessary to consider other options, such as width and length of the retainer plate, ensure good fixing glass roof with its different dimensions. In addition, the location of the shelves of the retainer plate at the angle specified is not effective when the thickness of the glass, as well as the power load due to climatic conditions, heavy snowfall, g is of glass in a greenhouse with such parameters of the retainer plate, which could ensure a reliable fixation of the glass roof in various sizes, thickness of glass and their attachment points.The technical result from this task can be the following: improving the reliability of fastening of glass under various linear sizes and higher life.This technical result is achieved in that the device for fastening glass in greenhouses containing bearing profile, connected to a plate with a bent piece, the shelves of which form an obtuse angle, and their ends and bearing profile associated with the respective surfaces of glass, these shelves elastically pulled through the screed relative to the surface of the glass according to the invention the angle between the shelves of the retainer plate is 130-170oand the width and length of the retainer plate is made in the ratio of 1: 12-30. This profile can be made in the form of the retainer plate.From the known to the applicant information sources should not be running the specified angle between the shelves of the retainer plate, and the ratio of its width and length that is used for fixing the glass in the greenhouse, and therefore, the proposed device for ormula.The applicant is not known devices of similar purpose, which would be revealed distinctive features of the claimed invention to obtain from using them in any combination of the specified technical result. Therefore, it is possible to draw a conclusion on the compliance of the claimed invention, the condition of patentability "inventive step".The proposed device can be used both in private farms (not difficult in production) and industrial production greenhouses. Therefore, it is industrially applicable.The invention is illustrated by drawings.In Fig. 1 shows the device is one - sided alternative mounting glass.In Fig. 2 - the same, two-sided alternative mounting glass.The device consists of a clamping plate 1 in the form of a curved profile, facing fold up out of the roof). The ends of shelves 2 retainer plate 1 are conjugate with the surface of the glass 3, stacked on a shelf bearing 4 profile 5. Profile 5 is connected with the clamp strap coupler 6, for example, in the form of a bolted connection (screw-nut). Profile 5 can be made on the form (Fig. 2), similar to the form of the retainer plate 1. The last mod is eating), having spring characteristics, and the angle of the bend is equal to 130-170o. The width of the retainer plate may be equal for this case, 40-60 mm, and its length is equal to the width of the glass and is in the range of 800-1200 mm, This embodiment allows a reliable and "soft" commit glasses.When assembling the greenhouse glass 3 without any spacers are placed on the shelves plane bearing 4 profile 5 and the presser bar 1 by tightening nuts bolting carry out the fixation of the glass. The implementation of the retainer plate 1 with the specified parameters creates the effect of water shutoff and strengthening of glass used in the construction of greenhouses that does not require putty or other sealing elements known in practice. This method is based on the meniscus effect in linear contact of shelves 2 of the retainer plate with glass and provides reliable waterproofing and floating glass that protects it from cracking during any movement of the frame of the greenhouse, as well as strong wind and snow and especially thermal loads.The experiments conducted for determining the maximum permissible angular and linear parameters of the elements of the device showed that the angle is to dramatically increase the strength of the screed. This leads to cracks glasses, especially when there are sharp differences of temperatures and a significant level of solar radiation. On the other hand, the boundary value 170ois determined by the requirements of sustainable water shut-off during operation of the greenhouse in a changing climate and weather conditions. The ratio of the width and length of the retainer plate were determined on the basis of the conditions mentioned above with regard to thermal dimensional changes as the glass itself, and the fastening elements depending on the attachment.The proposed device allows you to quickly and simply replace the glass in the repair of greenhouses and improve its operational reliability. 1. Device for fastening glass in greenhouses containing bearing profile, connected to a plate with a bent piece, the shelves of which form with each other an obtuse angle, and their ends and bearing profile associated with the respective surfaces of glass, these shelves elastically pulled through the screed relative to the surface of glass, characterized in that the angle between the shelves is 130 - 170oC, and the width and length of the retainer plate is made in the ratio of 1:12-30.2
SUBSTANCE: block is composed of transparent cylindrical cups produced by cutting off of throats from used plastic bottles. Columns of cups are positioned tightly one aside the other into frame equipped with device for attachment to other similar frame. Frame has plates arranged in lower and upper part of frame and provided with beads. Restricting plates are arranged at both sides of frame. One of plates is made movable and connected by side couplers to immovable plate.
EFFECT: simplified building of hothouses and greenhouses of different shape and sizes.
2 cl, 1 dwg
FIELD: agriculture, in particular, constructions for protected ground.
SUBSTANCE: greenhouse has carcass for longitudinal walls, end panels and roof, light-transparent material for covering carcass openings, with part of carcass openings being adapted for closing and opening to provide for ventilation of green house interior, and drive for unit adapted to provide for automatic ventilation. Carcass openings are made in the form of air vents. Drive for automatic ventilation unit is equipped with system of levers pivotally secured to one another and to air vent flaps and rigidly fixed on member for securing of vacuum pipe with counterweight.
EFFECT: simplified construction and increased efficiency in creating of advantageous conditions.
SUBSTANCE: invention can be used in greenhouses and other sheltered ground constructions. Proposed guard for greenhouse containing multiple-layer guard with air spacer and glass roof, light transparent polymeric air bottles are placed between layers. Edges of film panels are fixed in detachable semirigid combination cords and are secured in sockets found on roof of greenhouse. Thanks to it control of heat protective characteristics of roof depending on weather conditions is provided.
EFFECT: reduced labor input when mounting film coating on roof of greenhouse.
5 cl, 3 dwg
FIELD: covering and packaging materials.
SUBSTANCE: covering synthetic material is three-layer polyethylene film. Two layers define hermetically sealed cylindrical cavities secured with each other along generatrix lines. Third flat layer is attached to cylinders along tangent generatrix lines. Return valve is built into each of said cylinders for filling, retaining and relieving of air. On maximal filling of cylinders with air, material obtains constructional properties helpful in constructing of flat and three-dimensional temporary sheds providing "hot-house" effect. Upon complete relieving of air from cylinders, material is wound into compact roll.
EFFECT: improved heat-insulating and physical properties of material without affecting solar radiation permeability.
FIELD: agriculture, in particular, plant growing in protected ground.
SUBSTANCE: greenhouse has at least one greenhouse unit equipped with irrigation device. Greenhouse unit has ventilation device and soil heating device. Automatic control system for controlling said devices has at least one temperature sensor and at least one moisture content sensor, whose outputs are connected through amplifiers-converters to part of inputs of arithmetic-logic device adapted for receiving signals generated by said sensors, comparing resulting data with control data and generating control signals for switching-on said devices. Other part of arithmetic-logic device inputs is connected to outputs of replaceable permanent memory unit wherein program for selected climatic zone and program for growing of selected plant of this climatic zone are recorded. Third part of inputs is connected to position outputs for members of said devices, whose inputs are connected through control unit and amplifiers-converters to outputs of arithmetic-logic device and to inputs of indication unit. Voltage of 12 V is supplied to automatic control unit.
EFFECT: increased efficiency in growing wide range of plants of any climatic zone with automatic system for controlling of irrigation, ventilation and heating procedures.
5 cl, 6 dwg
FIELD: agriculture; protection of plants against unfavorable weather.
SUBSTANCE: load-bearing members of greenhouse roof are made in form of flexible cords fastened with film guard and suspended in taut state between end uprights on which they may be moved, freely fitted and taken off. Film guard is provided with drain recesses having semispherical holes in lower part. Some recesses are provided with drain valves made in form of two rings inserted one into other and section of film sleeve laid in between rings.
EFFECT: enhanced efficiency; reduction of labor consumption; possibility of mounting temporary multi-layer guard in case of light frost.
4 cl, 7 dwg
FIELD: agriculture; growing plants at lesser consumption of electrical and thermal energy due to extended range of utilization of solar energy.
SUBSTANCE: proposed greenhouse complex includes base, transparent heat-insulating dome-shaped coat with round transparent heat-insulation aperture in center. Coat is secured on load-bearing supports mounted vertically on base; it is manufactured from roofing blocks made from light-tight material at low heat conductivity and provided with through holes in form of truncated cones or pyramids coated from the inside with beam-reflecting material with their vertices directed inside or outside the coat. Holes are closed with inserts from the outside and inside which are made from thin transparent material; surfaces of said blocks directed inside coat and not occupied by through holes and technological holes are coated with beam-reflecting material. Areas with plants being cultivated, main and auxiliary technological equipment and plant life support systems are located inside coat and helio-absorbing heat accumulating reservoir consists of two vessels: one of them is filled with water and is mounted on base in center of coat and other is mounted coaxially inside first one and is insulated at sides and from beneath with low-conductivity material. Second vessel is closed at the top by its own transparent heat-insulating coat and is filled with common salt, for example. Two light reflectors which are cooled with water are made in form of truncated cones or truncated polyhedral pyramids. First of them with outer side light-reflecting surface is mounted with vertex downward above coat, coaxially with it. Second reflector is hollow; it is provided with light-reflecting surfaces; it is mounted coaxially relative to first reflector with vertex upward inside coat above helio-absorbing heat-insulating reservoir. Flat beam-reflecting panels located on area adjoining the coat concentrically relative to it are arranged in two rows. Each said panel is mounted on output link of its two-coordinated swivel mechanism provided with controllable drive. Base of drive is secured on bearing strut vertically mounted on ground surface. Provision is made for additional energy channel together with two said light reflectors which is made in form of flux of sun beams reflected by beam-reflecting panels of helio-absorbing heat-accumulating reservoir concentrated and directed downward. If necessary, it may be spread over entire surface. Controllable drives of two-coordinate swivel mechanisms are connected by their inputs to output of automatic control unit realized at base of computer center. Electrical inputs of center are connected with sensors of media contained in helio-absorbing heat accumulating reservoir and in space under coat, as well as with wind velocity and direction sensors and with coordinate position sensors of two-coordinate swivel mechanisms.
EFFECT: reduced power requirements at intensified growth of plants due to extended range of utilization of solar energy.
13 cl, 13 dwg
FIELD: agriculture, in particular, covering used for farm crops on home ground or farm, as well as in agricultural collective farms.
SUBSTANCE: covering for plants consists of uniform parts, that is, flat flexible arched members, which are mounted on base in pairs one above another in intersecting relationship, at an angle to each other. Flat flexible arched members are connected with one another through flexible members at points of intersection of arched members and between adjacent pairs.
EFFECT: simplified construction, reduced number of different-type completing parts, improved unification, and reduced costs for manufacture of covering construction.
FIELD: growing of farm crops in ground protected from environment and creation of optimum microclimate for plants.
SUBSTANCE: garden frame has carcass made from profiled metal parts connected with one another through screw-type fastening members. Poles are fixed on ground-buried supports. Horizontal longitudinal girders are connected to poles so as to form cells. Inclined and horizontal cross-pieces are connected to each other and to ceiling poles so as to define principal triangular framework. Roof panels of enclosure carry girders. Frame is furnished with pivotal transoms having light-transmitting film covering. Transoms are designed to be opened and fixed in closed position. Transoms pins of rotation are retained on inclined girders. Retainers are located on girders connecting inclined cross-pieces. Each of said inclined cross-piece is made of corner metal profile and consists of two parts with upper and lower arrangement of corner strips.
EFFECT: increased efficiency and enhanced reliability in operation of covering.
2 cl, 12 dwg
FIELD: agricultural engineering.
SUBSTANCE: collapsible portable covering-isolator has carcass consisting of composite transverse frames including end and intermediate frames, ridge and longitudinal bars disposed between frames. Carcass has door frame in its end. Protective covering is fixed to carcass members. Curtain adapted for closing of covering entrance is made from material similar to that of protective covering. Upper part of transverse frame is made in the form of curved girder with lower horizontal belt. Guiding pins are rigidly fixed to girder ends in vertical plane. Lower part of transverse frame comprises two hollow columns within which guiding pins of girder are inserted from the top. Brackets with openings are rigidly fixed on pins at different levels in horizontal planes along column length. Each of supports is made in the form of cross-piece disposed in horizontal plane. Rod is attached to cross-piece from its underside, and guiding pin is inserted from the top, said rod being driven into ground and guiding pin being inserted into column from the bottom. Frames connecting bars are formed similar and equipped at their ends with pins-fingers disposed in bracket openings.
EFFECT: simplified construction and enhanced reliability in operation of covering.
23 cl, 18 dwg