JPH032112Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to supports for agricultural and horticultural houses such as pipe houses and tunnel houses.

Conventionally, galvanized arch-shaped metal pipes have been used as supports for agricultural and horticultural greenhouses, and the lower ends of both sides of the metal pipes are buried in the ground. is particularly susceptible to corrosion at the interface between the ground and the space, that is, at the ground level, and metal pipes buckle at these areas, causing agricultural and horticultural greenhouses to collapse. For this reason, farmers generally apply coal tar to the lower ends of both sides of arch-shaped metal pipes or cover them with thin shrink tubes made of polyvinyl chloride to prevent corrosion.

However, with such conventional supports, the long metal pipes are directly coated with coal tar or covered with shrink tubes, which makes corrosion prevention work difficult. The tube was easily torn and the anti-corrosion treatment was not sufficient. Furthermore, since a long metal pipe including a corrosion-resistant portion is transported, it is bulky and the corrosion-resistant portion is easily damaged.

In view of these conventional drawbacks, the present inventor has made extensive efforts to provide a support for agricultural and horticultural greenhouses that eliminates the above-mentioned drawbacks.

The present invention will be described below with reference to the drawings.

In the drawings, reference numeral 1 denotes a support main body made of metal, and a galvanized pipe is usually used. The support main body 1 may be simply straight, or the support main body 1 may be simply straight.
It may be curved as shown in the figure. In the case of FIG. 1, two pipes are connected at the center to form the arch-shaped support main body 1, but one pipe may be curved in an arch-shape.

Reference numeral 2 denotes a pillar, and a synthetic resin layer 22 or the like is tightly coated over the outer circumferential surface and lower tip of a metal core material 21 to provide watertightness. The pedestal 2 is straight and is erected on the ground with the upper part protruding above the ground, and the lower end is usually sharpened to facilitate embedding. For example, in the case of FIG. 2, the pedestal 2 has a synthetic resin layer 22 tightly coated on the outer peripheral surface of a pipe-shaped metal core 21, and a synthetic resin cap 22' on the lower end by adhesion, fusion, etc. The clothes are integrated. Further, the upper end portion of the leg portion 2 is swaged to form a connecting portion 23, and the connecting portion 23 is fitted into the lower end portion of the column main body 1 and connected to the column main body 1. In the case of Fig. 3, the upper end is the pillar 2 before being swaged, and the pipe-shaped metal core 2
The entire outer circumferential surface and upper and lower ends of 1 are closely covered with a synthetic resin layer 22. Further, it is preferable that an adhesive is interposed between the core material 21 and the synthetic resin layer 22, since this further improves the watertightness of the pedestal 2. The thickness of the synthetic resin layer 22 may be appropriately set, for example, about 0.1 to 3.5 mm, and synthetic resin such as polyethylene, polyvinyl chloride, polypropylene, polyamide, etc. can be formed by extrusion molding, dip molding, thermal spray molding, painting, or other appropriate means. It may be formed via. Further, instead of the synthetic resin layer 22, a synthetic resin film may be formed on the outer circumferential surface of the core material 21 after metal spraying to provide corrosion protection.

Reference numeral 3 denotes a connecting fitting, and the connecting fitting 3 is made into a cylindrical body, a part of the outer circumferential wall is cut in the axial direction, and the opening edges 31, 31 are bent outward to face each other. A bolt/nut 32 is provided to tighten the opening edges 31, 31. In other words, as shown in Fig. 2, the pillar body 1 and the pedestal 2 are
The connections are tightened and fixed.

In addition, the agricultural and horticultural house supports of the present invention are erected on the ground with the upper part of the pillar 2 protruding above the ground, but in order to prevent corrosion, the corrosion-resistant portion of the pillar 2 is treated with a synthetic resin layer 22, etc. As shown in the figure, it is applied in the range from the lower end to the connection part with the support main body 1.

As detailed above, in the agricultural and horticultural house supports of the present invention, the pillars are covered with a synthetic resin layer etc. tightly over the outer circumferential surface and the lower end of the metal core material, giving watertightness. When planted on the ground, corrosion can be sufficiently prevented at the contact area between the pillar and the soil and at the ground level, and durability can be improved.

Further, since the main body of the column and the pedestal are made separately, the pedestal can be easily treated for corrosion protection, and there are advantages in that it is not bulky and easy to handle during transportation.

Furthermore, since the upper end of the pedestal is swaged, it can be inserted into the lower end of the metal pedestal body, making it easy to connect to the metal pedestal body, and the top end of the pedestal is covered with the metal pedestal body. This prevents rainwater from penetrating into the pillars, improving corrosion resistance.

Furthermore, since the fitting portion of the metal column main body and the pedestal are covered with a cylindrical connecting fitting and are integrated, the connection between the metal column and the pedestal is further strengthened, and the fitting portion of the metal column and the pedestal is The parts are protected by connecting fittings, further improving corrosion resistance.

[Brief explanation of the drawing]

Fig. 1 is a front view showing one embodiment of the support for agricultural and horticultural greenhouses according to the present invention, Fig. 2 is a sectional view showing the main parts of the support for agricultural and horticultural greenhouses according to the invention, and Fig. 3 is a diagram showing other parts of the support for agricultural and horticultural greenhouses according to the present invention. FIG. 1... Support main body, 2... Pillar, 21... Core material,
22...Synthetic resin layer, 22'...Synthetic resin cap, 23...Connection part, 3...Connection fitting, 31...
Opening edge, 32... bolt/nut.

Claims (1)

[Scope of utility model registration request] The upper end swaged portion of the pillar 2 is fitted into the lower end of the metal support main body 1, and is connected and integrated via a cylindrical connecting fitting 3 that covers the fitted portion.The pillar 2 is made of metal. An agricultural and horticultural house in which the outer circumferential surface and lower tip of the core material 21 are tightly coated with a synthetic resin layer 22 etc. to provide watertightness, and the pillars 2 are erected with their upper parts protruding above the ground. Prop for use.