CN201238511Y - Support lever for greenhouse frame - Google Patents

Abstract

The utility model relates to a supporting rod used for a large canopy framework, which comprises a metallic framework layer, a reinforcing layer is fixedly arranged outside the metallic framework layer, the metal tube is filled with core bodies made of foamed material, metal tubes and steel tubes can be selected for the metallic framework layer, the supporting rod provided with the reinforcing layer has firmer structure, the core bodies are made of foamed material, therefore, the weight of the supporting rod is lighter, the weight is reduced under on premise of enhancing the strength and the toughness, and the installation is more convenient.

Description

A support rod for a greenhouse frame

technical field

The utility model relates to a support rod for a greenhouse skeleton of a greenhouse suitable for agricultural cultivation, planting and breeding.

Background technique

In recent years, with the promotion of vegetable greenhouses, greenhouses have been widely used in various regions. According to the different natural environmental conditions in various regions and the needs of different crops and different uses, people have made improvements to traditional greenhouses. Due to the limitations of the original economic conditions, traditional greenhouses are generally constructed of cement columns and transverse skeletons, and the skeletons are generally made of bamboo poles. With the development of the economy and the growing trend of greenhouses, framework materials with stronger structures and more convenient construction are required. The material of steel structure has become the material of choice for greenhouses. However, there are some problems with the skeleton of the metal material during the application process. Firstly, the production cost is high, and secondly, the corrosion resistance is poor. For the problem of high cost, many people use steel pipe as the skeleton material, and for the problem of poor corrosion resistance of steel pipe, paint or other waterproof materials are applied to the outside of the steel pipe. In order to solve the problem of poor rigidity and toughness, some use the outer layer The method of filling the reinforcement layer and the inner layer is generally filled with cement or materials equivalent to cement, and cement or magnesium chloride is generally used for the outside.

However, the external application of paint or other waterproof materials only plays the role of anti-rust, and cannot play the role of reinforcement, and the application of anti-rust paint or waterproof materials cannot be durable, and the anti-rust effect is relatively poor. The external use of cement materials has poor bonding and poor toughness.

The State Intellectual Property Office of China has published a patent application number 200810000918.0 named as an invention patent application. The purpose of this invention is to provide a greenhouse framework material with corrosion resistance, low cost, non-scratch film, high strength and high toughness. And the processing method and processing equipment of skeleton material. In order to achieve the above object, the invention adopts the following scheme: a hollow steel pipe is filled with solidified high molecular inorganic material inside the steel tube, and a layer of high molecular inorganic material is solidified outside the steel tube. Wherein, the steel pipe is filled with solidified polymeric inorganic material, which is seamlessly bonded to the inner surface of the steel pipe, and the solidified polymeric inorganic material covered on the outside of the steel pipe is seamlessly bonded to the outer surface of the steel pipe, so that the steel pipe will not be exposed to air. The oxygen in it oxidizes and rusts, prolonging the service life. Wherein, the cross-section of the framework material is circular or polygonal, and the outer surface is smooth to prevent the plastic film from being scratched. Wherein, the solidified polymer inorganic material filled inside the steel pipe and the polymer inorganic material solidified outside the steel tube consist of talc powder of 4% to 35%, calcium stone powder of 64% to 95%, calcium stone powder of 1% to 0.01% chemical additives, mixed with water and stirred to form a slurry. Among them, the chemical additives are grade A cellulose and water-based glass glue, and the calcium stone powder is crushed from selected solid stones. The chemical additives can make the polymer inorganic material stronger and bond with the steel pipe more firmly. Wherein, the solidified polymer inorganic material filled in the steel pipe and the solidified polymer inorganic material outside the steel tube are also doped with glass fiber filaments to enhance the toughness of the polymer inorganic material and the overall strength of the skeleton material.

In the above technical solution, the internal and external solidification of polymer inorganic materials is adopted, which can achieve the purpose of corrosion resistance, low cost, non-scratch, high strength and high toughness to a large extent, but in practice, due to the slurry filling in The purpose of the steel pipe is first to increase the strength, and the second is to prevent rust and corrosion. However, because the slurry is inside the steel pipe and the length of the steel pipe is long, the slurry cannot be condensed and formed in a short time, and it is also difficult to achieve a seamless connection with the steel pipe. Contact, its anti-corrosion effect is poor. If the slurry cannot be condensed and formed within a short period of time, it will first lead to longer processing time, which will have an adverse effect on transportation and installation. At the same time, since the inside and outside are solidified polymer inorganic materials, the weight of the skeleton actually increases, which is particularly unfavorable for the construction of the greenhouse, because the support of the upper film of the greenhouse needs to be supported by multiple support rods. If the support rods are heavy, The weight of itself puts higher requirements on the lower support, which is not in line with the current development trend of growing greenhouses. Larger and larger greenhouses require fewer supports and stronger supports, so it is necessary to try to reduce the upper support. The weight of the support rods can increase the span of the greenhouse more effectively, so the weight of the support rods is obviously of great significance to the greenhouse, especially when sudden weather conditions come, such as freezing rain and snow in the south, basically all The reason for the destruction of greenhouses is that the load-bearing capacity is poor, so reducing its own weight while ensuring strength and toughness has become the focus of expanding the development of greenhouses.

In this technical scheme, the method of adding glass fiber filaments to the slurry is adopted, but adding glass fiber filaments to the slurry can only achieve the effect of increasing toughness to a certain extent, and its bonding degree is poor, and it is completely dependent on the curing of the slurry for bonding , its combination with the steel pipe is poor, and other additives or binders need to be added.

Contents of the invention

The problem to be solved by the utility model is to provide a support rod for a greenhouse framework that is corrosion-resistant, does not scratch the film, has high strength, high toughness, is convenient to install, and has a long service life.

In order to achieve the above object, the present invention adopts the following technical method: a support rod for a greenhouse skeleton, comprising a metal skeleton layer, characterized in that: a reinforcement layer is fixed on the outside of the metal skeleton layer, and the inside of the metal pipe is filled with Core made of foam material.

The metal skeleton layer can be made of metal pipes and steel pipes, and the support rods with reinforced layers have a firmer structure. The core body is made of foam material to make the weight of the support rods lighter. The weight is reduced under the premise of increasing strength and toughness, and the installation is more convenient. .

The reinforcement layer includes a glass fiber cloth layer and a slurry layer.

The reinforcement layer includes several layers of glass fiber cloth layers and slurry layers.

The several layers of glass fiber cloth layers and slurry layers are arranged at intervals.

The glass fiber cloth layer is formed by winding glass fiber cloth on the metal skeleton layer.

The metal skeleton layer has a thickness of 0.15-0.32 cm, and the reinforcement layer has a thickness of 0.25-0.5 cm.

The outer layer of the reinforcing layer is provided with an unsaturated resin layer.

Beneficial effects: the structure of the reinforcement layer composed of the glass fiber cloth layer and the slurry layer is firmer, and the bonding strength is stronger. The way of glass fiber cloth winding makes the strength and toughness of the reinforcement layer better, and the support rod with the reinforcement layer and the core Because the metal skeleton layer is isolated from the air, it is more corrosion-resistant, the surface resin and the reinforcement layer are not easy to scratch, and the service life is longer. The performance is strong, so it is easy to conduct the room temperature in the greenhouse to the outside through the film or connected components, and the support rod of the present invention has a reinforcement layer and a resin layer on the outside, so it is not easy to conduct heat. Conducted into the room, resulting in higher indoor temperature, and the room temperature of the greenhouse should maintain a constant temperature, too high or too low is not conducive to the growth of plants, and cooling or heating facilities need to be added, so the support rod of the present invention also has energy-saving features. Effect.

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments

Description of drawings

Accompanying drawing 1 is the structural representation of support bar in the embodiment;

Accompanying drawing 2 is the schematic structural diagram of the metal skeleton layer and the reinforcing layer in the embodiment.

Detailed ways

Embodiment, as shown in Fig. 1, a kind of support bar for greenhouse framework, comprises metal skeleton layer 1, and metal skeleton layer 1 is the steel pipe that does not galvanize, and the exterior of metal skeleton layer 1 is fixed with reinforcing layer 2, and metal pipe 3 The interior of the reinforcement layer is filled with a core 3 made of foam material, and the outer layer of the reinforcement layer 2 is provided with an unsaturated resin layer 4 .

As shown in Figure 2, the reinforcing layer 2 includes a glass fiber cloth layer 22 and a slurry layer 21, the reinforcing layer 2 includes 2 layers of glass fiber cloth layers 22 and 3 layers of slurry layers 21, and the glass fiber cloth layer 22 and the slurry layer 21 Arranged at intervals, the glass fiber cloth layer 22 is formed by winding the glass fiber cloth on the metal skeleton layer 1 .

The thickness of the metal skeleton layer 1 can be 0.15-0.32 cm, and the thickness of the reinforcement layer 2 can be 0.25-0.5 cm.

The raw materials are sulfoaluminate cement, white stone powder 150-200 mesh, lithopone, polyvinyl alcohol glue with a concentration of 6% according to 0.8-1.2 parts of sulfoaluminate cement, 0.8-1.2 parts of 150-200 mesh white stone powder, lithopone 0.0008-0.0012 parts of powder and 0.008-0.012 parts of polyvinyl alcohol glue with a concentration of 6% are mixed with water and stirred to form a thin paste to form a slurry, and the slurry is hardened to form a slurry layer.

The core body is foamed by injecting polyurethane into the metal skeleton layer to exclude air.

The metal skeleton layer can be a circular or square metal tube.

Claims (7)

1. A support bar for a greenhouse framework, comprising a metal framework layer (1), characterized in that: a reinforcing layer (2) is fixed on the outside of the metal framework layer (1), and a reinforcing layer (2) is fixed on the inside of the metal pipe (3) Filled with a core (3) made of foam material. 2. A support rod for a greenhouse framework according to claim 1, characterized in that: the reinforcing layer (2) comprises a glass fiber cloth layer (22) and a slurry layer (21). 3. A support rod for a greenhouse framework according to claim 2, characterized in that: the reinforcement layer (2) includes several layers of glass fiber cloth (22) and slurry layers (21). 4. A support rod for a greenhouse framework according to claim 3, characterized in that: the several layers of glass fiber cloth layers (22) and the slurry layer (21) are arranged at intervals. 5. A support rod for a greenhouse framework according to any one of claims 2, 3, and 4, characterized in that: the glass fiber cloth layer (22) is formed by winding glass fiber cloth on the metal skeleton layer (1) . 6. A supporting rod for a greenhouse frame according to claim 1, characterized in that: the metal frame layer (1) has a thickness of 0.15-0.32 cm, and the reinforcement layer (2) has a thickness of 0.25-0.5 cm. 7. A supporting rod for greenhouse framework according to claim 1, characterized in that: the outer layer of the reinforcing layer (2) is provided with an unsaturated resin layer (4).

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