RU163572U1 - FRAME FOR THE GREENHOUSE - Google Patents

Abstract

1. Frame element for a greenhouse, containing a section of a metal wire curved in an arc in a sheath of PVC compound, characterized in that a wire with a dented corrugated surface is selected as a metal wire. 2. The frame element for the greenhouse according to claim 1, characterized in that the diameter of the metal wire is selected from 3.0 mm to 8.0 mm. The frame element for the greenhouse according to claim 1, characterized in that the shell of polyvinyl chloride plastic compound is a tube. The frame element for the greenhouse according to claim 1, characterized in that it further comprises the ends of the caps covering it. The frame element for a greenhouse according to claim 1, characterized in that the ends of the metal wire extend beyond the sheath, while a layer of heat-shrinkable material is formed on the ends of the metal wire protruding beyond the sheath of polyvinyl chloride plastic compound, said layer being connected to the sheath of polyvinyl chloride plastic compound with an overlap.

Description

A01G 9/00 (2006.01)

A01G 9/14 (2006.01)

FRAME FOR THE GREENHOUSE

 Technical field

The utility model relates to agriculture, in particular, to the construction of greenhouse elements and can be used on personal plots and in farms for quickly mounted greenhouse frames.

State of the art

Hotbeds are actively used in summer cottages and household plots for growing garden crops, as they excellently protect plants from external climatic factors.

Greenhouses and greenhouses are frame structures, while frames for them are identical from a technical point of view. Hotbeds are usually referred to as collapsible frame structures on which a sheet of film or non-woven material is poured. When installing such a greenhouse, frames are first installed. The simplest frames are arcades from arcs that stick into the ground to a stable position, followed by covering the greenhouse with a translucent film. The film blade is fixed to the frame using various attachment points - clips, clothespins. As a rule, the greenhouse is installed for the season and light shelters (films) are dismantled at the end of the season. The greenhouse is “mobile” - it is so easy to remove and install it that you can move it from one bed to another, remove watering or weeding if necessary. The frame elements are considered to be the highest quality - arcs that have a long period of operation, are easily mounted and easy to operate.

Known from patent RU103272U1 (published http://www.fips.ru/Archive/PAT/2011FULL/2011.04.10/DOC/RUNWU1/000/000/000/103/272/document.pdf "\ t" _blank "\ o "Official publication in PDF format) a greenhouse frame in which arcs, guides and jumpers are made of a metal profile.

Known from patent RU117257U1 (published on June 27, 2012) is a greenhouse frame, the elements of which are made of a hollow metal profile pipe of rectangular cross section.

Known from patent RU146334U1 (published http://www.fips.ru/Archive/PAT/2014FULL/2014.10.10/DOC/RUNWU1/000/000/000/146/334/document.pdf "\ t" _blank "\ o "Official publication in PDF format) the frame of a greenhouse, all elements of which are made of a metal profile pipe.

Known from patent RU149460 U1 (published http://www.fips.ru/Archive/PAT/2015FULL/2015.01.10/DOC/RUNWU1/000/000/000/149/460/document.pdf "\ t" _blank " \ o "Official publication in PDF format) a frame for a greenhouse or greenhouse in which all the supporting elements are made of a rectangular, square, triangular or other cross-sectional profile pipe. This profile pipe is usually hollow, but manufacturing options are possible frame from incomplete formations. Particular cases of the manufacture of a profile pipe include its manufacture from steel, galvanized steel, polymer coated steel, polymer coated galvanized steel, another metal, another polymer coated metal.

Metal arcs from a metal profile pipe are strong but heavy. They have all the necessary properties to create a complex, durable design.

In practice, arched frames made of plastic tubes, mainly hollow plastic tubes, have been widely used recently. Typically, greenhouse arcs are made from a polyvinyl chloride tube with a diameter of 32 mm. Such frame elements are known from patent RU2195811C2 (published January 10, 2003) or from patent RU2195810C2 (published January 10, 2003).

Simple arcs made of plastic are most often chosen for a simple short-lived design. Such frame elements are known, for example, from patent RU148087U1 (published on 11.27.2014). The disadvantages of such arcs is that the holes of the edges of the frame tubes are clogged with earth. Condensed moisture in the pipe cavity with pipe ends clogged with earth during early frosts leads to cracking of the edges of the frame pipes.

These shortcomings were overcome by the creation of, for example, patent RU155095U1 (published http://www.fips.ru/Archive/PAT/2015FULL/2015.09.20/DOC/RUNW ) or patent RU156315U1 (published http: //www1.fips. com / Archive / PAT / 2015FULL / 2015.11.10 / DOC / RUNWU1 / 000/000/000/156/315 / document.pdf "\ t" _) frame arches of a greenhouse with a straight end and a tip or pin made into it made of plastic or metal.

The undoubted advantage of plastic pipes for making arches for a greenhouse is their low weight, but at the same time, such arcs are not rigid enough. Hence their most common use for the manufacture of low greenhouses in areas with low wind activity.

The closest and selected as a prototype is the frame element of the greenhouse - the greenhouse arc of a metal wire in a sheath of polyvinyl chloride plastic compound (PVC) (http://www.parniki-rassvet.ru/dugi.html). A steel wire with a diameter of 5 mm was used as a metal wire, onto which a layer of PVC was applied by extrusion. The disadvantage is the complexity and energy consumption of the manufacturing technology of a fairly simple product and the insufficient elasticity of the finished greenhouse arc.

The utility model is based on the task of creating an easy-to-manufacture, reliable in operation and having improved qualities frame element for a greenhouse.

The technical result is to improve the quality of the finished product through the use of metal wire with increased elastic properties.

Another technical result is the simplification of manufacturing technology and reducing the cost of the finished product

Utility Model Disclosure

 The problem is solved in that in a frame element for a greenhouse containing a section of a metal wire bent along an arc in a sheath of PVC compound, it is new that a wire with a dented corrugated surface is selected as a metal wire.

It is desirable that the diameter of the metal wire be selected from a range from 3.0 mm to 8.0 mm.

It is advisable that the sheath of polyvinyl chloride plastic compound was a tube.

It is possible that the ends of the metal wire extend beyond the PVC sheath, and so that a layer of heat-shrinkable material is formed on the ends of the metal wire protruding outside the sheath of PVC so that the layer is bonded to the sheath of the PVC sheath.

Brief Description of the Drawings

Other features and advantages follow from the description below, which more fully explains the utility model based on exemplary embodiments with reference to the accompanying drawings, in which:

 figure 1 presents a frame element according to a utility model, a General view with a local view of a section of a metal wire without a sheath and a cut at one end;

figure 2 shows a side view of a fragment of a metal wire;

figure 3 shows a cross section of a frame element;

 figure 4 shows schematically the execution of the end part of the frame element, a longitudinal section, an enlarged scale;

figure 5 shows schematically another design of the end part of the frame element, a longitudinal section, an enlarged scale;

figure 6 shows schematically another alternative execution of the end part of the frame element, a longitudinal section, an enlarged scale;

In the drawings, for clarity, the elements are shown conditionally without respecting the proportions and sizes.

Implementation of a utility model.

The frame element 1 is made in the form of a curved arc of a piece of metal wire 2, on which is placed a sheath 3 made of polyvinyl chloride plastic compound (PVC) (hereinafter sheath 3).

As the metal wire 2 shown in FIG. 2, a round wire of diameter D is selected from a range of 3.0 mm to 8.0 mm.

For D less than 3 mm, the structural rigidity necessary for the stability of the greenhouse is not provided, for D greater than 8.0 mm, the simplicity necessary for the manufacture of the arc is not provided, since complex special devices will be required to bend the greenhouse arc of the required radius.

The surface of the metal wire has a periodic profile, i.e. the wire is made with a corrugated surface having dents 4 and protrusions 5 (Figure 3). Dent pitch S 4 can be selected from a range of 2.0 mm to 50 mm.

The depth h (Figure 3) of the corrugation dent 4 is selected from a range from 0.10 mm to 0.30 mm.

The dent depth h and its pitch S are selected from the condition that it is possible to use as such a wire with a corrugated surface a cold drawn wire of low carbon steel, for example BP-3. BP-4, BP-5, manufactured in accordance with GOST 6727 and intended for reinforcing reinforced concrete structures.

Corrugation improves the elastic properties of a metal wire due to the appearance of springing properties.

This ensures a quick return of the frame element to its original shape in the case of application of external forces (for example, strong wind).

In one embodiment (conventionally shown in FIG. 1), the sheath 3 can be applied to the metal wire 2 by known extrusion methods.

To significantly simplify the technology, finished tubes made of polyvinyl chloride (PVC) plasticate with an inner diameter from 3.0 mm to 8.0 mm and wall thickness depending on the life of the finished product from 0.40 mm to 1.75 mm can be used as a sheath 3, for example, a 305 TV tube -40.

In this case, in the manufacture of the frame element 1, the metal wire 2 is pulled through the finished tube 3 from PVC compound, which eliminates the use of complex extrusion equipment, thereby simplifying the manufacturing technology.

These tubes have sufficient strength, resistance to high humidity and solar radiation, are not subject to decay.

Corrugation on a metal wire provides increased adhesion of the metal wire to the sheath, made in the form of a tube of PVC compound.

The use of a finished tube as a sheath 3 of PVC provides the ability to change the sheath in case of prolonged use or in case of damage.

The ends of the frame element 1 may have a different design, but each design provides protection of the metal wire from corrosion, which increases the service life.

In one alternative embodiment, as shown in FIG. 1, the sheath 3 can end so that it covers a piece of metal wire 2 from the end sides. In this case, the end sections of the sheath 3 can be pressed against a metal wire by thermoplastic deformation and transverse forces or compression.

In another alternative embodiment, as shown in FIG. 4, a piece of metal wire 2 ends at the same level with the sheath 3. In this case, each end part of the frame element is provided with a cap 6, tightly compressing the sheath 3, covering the metal wire 2.

The cap 6 may have a different shape and may be made of metal or rubber or other suitable material. In this case, a piece of metal wire 2 can end at the same level with the sheath 3 or protrude beyond it.

In the embodiment shown in FIG. 5, the metal wire 2 protrudes beyond the sheath 3 to form an end portion 7. At the end portion 7, a cap 6 is provided having a cone-shaped portion. The length of the cap 6 is such a length at which it exceeds the length of the end portion 7 with the formation of the connection 8, made overlapped with the shell 3.

In another alternative embodiment, as shown in FIG. 6, a layer 9 of heat-shrinkable material is formed on each end portion 7 of the metal wire 2 protruding beyond the sheath 3. A layer 9 of heat-shrinkable material is deposited on the end part 7 and the adjacent part of the shell 3 with the formation of an overlapped connection 10.

Layer 9 firmly fits the surface onto which it shrinks, precisely repeating its relief with a protrusion in the region of transition from the shell 3 to the end part 7 and forming a strong and tight coating, which provides reliable protection of the end parts of the metal wire of the frame element from corrosion.

Layer 9 can be formed from a heat-shrinkable tube (HERE), changing its geometric dimensions and shape at https://ru.wikipedia.org/wiki/%D0%9D%D0%B0%D0%B3%D1%80%D0% B5% D0% B2 "\ hot air, open flame or in hot water. Heat-shrinkable tubes are made of various polymeric materials that have been specially treated. Most often, heat-shrinkable tubes are made of compositions based on polyolefins (polyethylene), but other materials are used, for example : polyvinyl chloride (PVC), polyvinylidene (PVDF), fluoroplast-4 (PTFE), polyethylene Ephthalate (PET), fluorine-containing elastomers, silicone rubber (silicone), synthetic rubbers (neoprene, EPDM), etc.

The minimum length of the section on which connection 8 or connection 10 is made is selected from the condition of ensuring reliable connection of the cap 6 or layer 9 with the shell 3 during operation of the frame element 1 and is preferably from 1.0 to 4.0 cm.

Frame elements (or otherwise greenhouse arcs) made according to the proposed technical solution are light and convenient, easy to install and easy to assemble. A greenhouse made using the inventive frame elements is a fairly lightweight and portable design, does not need to be solidified.

The process of assembling a greenhouse is simple and takes little time. The frame of a greenhouse consists of only one type of part - greenhouse arcs.

Claims (5)

1. Frame element for a greenhouse, containing a section of a metal wire curved in an arc in a sheath of PVC compound, characterized in that a wire with a dented corrugated surface is selected as a metal wire. 2. The frame element for the greenhouse according to claim 1, characterized in that the diameter of the metal wire is selected from 3.0 mm to 8.0 mm 3. The frame element for the greenhouse according to claim 1, characterized in that the shell of polyvinyl chloride plastic compound is a tube. 4. The frame element for the greenhouse according to claim 1, characterized in that it further comprises the ends of the caps covering it. 5. The frame element for the greenhouse according to claim 1, characterized in that the ends of the metal wire protrude beyond the sheath, while a layer of heat-shrinkable material is formed at the ends of the metal wire protruding beyond the sheath of polyvinyl chloride plastic compound, said layer being connected to the sheath made of polyvinyl chloride plastic compound with an overlap.

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