JP3056097U - Articulated vent pipe for planting - Google Patents

Abstract

(57) [Abstract] [Problem] At the same time as imparting water retention and air permeability to soil,
It has the effect of raising unnecessary water from the soil and releasing it to the atmosphere, and there is no problem with the landscape when buried,
To provide a ventilation pipe for planting that is easy to handle and bury. SOLUTION: A connected net bag 2 in which two small cylindrical net bags 2a are connected in the longitudinal direction, and diatomaceous earth filled in each small cylindrical net bag 2a of the connected net bag 2 are charged at 1000 ° C. It comprises diatomaceous earth fired grains 3 having countless fine pores obtained by firing at the above high temperature.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a ventilation pipe for planting, which promotes ventilation and drainage of soil in which trees are planted, and which helps the growth of trees.

[0002]

[Prior art]

 Conventionally, when trees are planted on clay ground or poorly drained soil, root rot is likely to occur, so improve the soil entirely or, if it is difficult, use a tree planting hole. Large-scale work had to be performed, such as excavating the soil below and laying crushed stone.

[0003] Recently, an oxygen pipe or a vent pipe having a length of about 50 cm to 2 m and a diameter of about several tens cm, which is packed with a crushed stone or the like in a cylindrical mesh bag so that it can be easily buried in the soil. A so-called souvenir has been devised and used not only for planting on clay ground and poorly drained soil, but also for planting in general parks. For example, Japanese Utility Model Registration No. 3005401 describes a tubular body in which obsidian-based pearlite particles are stored in a mesh bag formed by forming a mesh sheet into a tubular shape.

[0004] An oxygen pipe or a vent pipe such as a tube plug can be embedded in the soil around a tree so that an upper end thereof is exposed, so that oxygen can be supplied to a root and water can be retained through the pipe. For this reason, it is said that the soil has a function to resuscitate the soil by providing air permeability and water retention, prevent root decay of trees, and support growth.

[0005]

[Problems to be solved by the invention]

 As described above, a conventional oxygen pipe or aeration pipe is one in which crushed stone or obsidian-based perlite particles are stored in a mesh bag, and oxygen can be sent into the soil through the gaps between the particles. Air permeability can be improved.

However, when draining unnecessary water from clayey or poorly drained soil, if an oxygen pipe or a vent pipe is buried vertically in the soil with its upper end exposed, it is necessary to pass through between the particles. Since almost no water can be raised, it was difficult to expect a drainage effect. Therefore, conventionally, a large number of oxygen pipes and ventilation pipes were continuously buried so as to form a passage in the horizontal direction, and the ends thereof were exposed from a slope or the like and drained. For this reason, there was a problem that the construction was liable to be large-scale, and the construction period and costs were increased.

[0007] In addition, conventional oxygen pipes and vent pipes need to have a large diameter and a large surface area in order to ensure necessary air permeability and water retention in soil. For this reason, there was a problem that the upper ends of the oxygen pipes and the ventilation pipes exposed from the soil were conspicuous and hurt the scenery of parks and the like. Such a problem can be solved by reducing the diameter, but in that case, many elongated oxygen pipes and ventilation pipes must be buried, which makes it difficult to handle and bury the pipes.

[0008] In view of such a conventional situation, the present invention has the effect of increasing water retention and air permeability to the soil, and at the same time, has the effect of raising unnecessary water from the soil and releasing it to the atmosphere. The purpose of this project is to provide a ventilation pipe for planting that has no problems with the landscape when buried and that is easy to handle and bury.

[0009]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides an articulated ventilation pipe for planting, which comprises two small cylindrical net bags connected in the longitudinal direction and a filling inside the connected net bag. And diatomaceous earth fired grains having fine pores.

[0010]

[Embodiment of the invention]

 As shown in FIG. 1, the articulated ventilation pipe 1 for planting of the present invention uses an articulated net bag 2 in which two elongated small cylindrical net bags 2a are connected in the longitudinal direction. Inside the bag 2 (in each small cylindrical net bag 2a), diatomaceous earth fired grains 3 having countless fine pores are filled and stored.

The fired diatomaceous earth particles used in the present invention are obtained by granulating soil (diatomaceous earth) formed by depositing diatom shells and firing at a high temperature of 1000 ° C. or higher. The calcined diatomaceous earth particles are porous ceramic particles containing SiO ₂ as a main component, and having a volume of about 70% or more composed of fine pores, having a spherical or columnar shape and an average particle diameter of 1%. It is about 10 to 10 mm. In addition, since the ceramic particles are fired at a high temperature, they have high strength and excellent pressure resistance, and do not swell or be broken by moisture.

[0012] The connecting net bag can be easily produced by, for example, sewing one cylindrical net bag substantially at the center along the longitudinal direction and dividing it into two. The material of the net bag is not particularly limited as long as it is resistant to corrosion in the soil and is chemically stable. For example, plastic such as polyethylene is preferable in terms of price and the like. Specifically, a net called Warif manufactured by Nippon Oil Co., Ltd. can be used.

[0013] The diatomaceous earth fired particles are filled in such a connected net bag, and the opening of the net bag is tied or sewn with a string to close, so that the connected vent pipe of the present invention can be constituted. . The size of the connecting vent pipe can be appropriately changed according to the method of use, but generally the length is about 500 to 2000 mm and the diameter is about 50 to 150 mm.

[0014] Since the articulated vent pipe of the present invention uses an articulated net bag in which two small cylindrical net bags are connected, one net having a diameter twice the diameter of the small cylindrical net bag is used. The surface area of the vent tube can be the same even if the amount of particles to be filled is half as compared with a plastic bag. For example, assuming that the diameter of a normal net bag is 2R and the length is L, the volume of the conventional vent pipe is πR ² L and the surface area is 2πRL. On the other hand, assuming that the diameter of each small cylindrical net bag in the articulated net bag of the present invention is R and the length is the same L, the volume of the articulated vent pipe of the present invention is 2 × π (R / 2) ² L. = ΠR ² L / 2, and the surface area is 2 × 2π (R / 2) × L = 2πRL, indicating that the volume is half that of the conventional vent pipe and has the same surface area.

[0015] Therefore, by using the articulated vent pipe of the present invention, the amount of diatomaceous earth fired grains used can be reduced by half while the surface area in contact with the soil is kept almost the same as that of a normal vent pipe, so that it is extremely low. It is economical. In addition, since the diameter of each small cylindrical net bag is reduced by half, there is no fear that the upper end of the ventilation pipe exposed from the soil will damage the landscape of a park or the like.

The articulated vent pipe of the present invention can be used in the same manner as a conventional oxygen pipe or vent pipe. For example, when a tree is generally planted in a park or the like, as shown in FIG. 2, a planting hole 4a is dug in the soil 4, and the bottom soil 5 mixed with crushed stone or humus is put in the bottom, and then, as shown in FIG. The connected ventilation pipes 1 are arranged vertically at predetermined intervals along the periphery of the planting hole 4a. Next, a tree 6 is set up in the planting hole 4a, and the excavated soil is back-filled. At this time, the upper end 1a of the connection-type ventilation pipe 1 is exposed from the surface of the soil.

[0017] The articulated aeration pipe of the present invention has excellent air permeability and water permeability due to the presence of a sufficient gap between the particles, similar to a conventional oxygen pipe or aeration pipe, and allows the roots of trees or the like to pass between the particles. Oxygen and water can be supplied. In addition, the connected conventional vent pipe of the present invention uses porous diatomaceous earth fired granules having a myriad of fine pores, so that air, water, fertilizer, etc. necessary for the pores in the grains can be stored at the same time. Can be. As a result, the stored air, water, and fertilizer can be gradually applied to the trees, and tree management such as irrigation and fertilization becomes easier than before.

In addition, compared with obsidian-based pearlite, which has been generally used in the past, diatomaceous earth fired grains are porous particles having a myriad of extremely fine pores. Unnecessary water inside can be raised to the upper end of the connected ventilation pipe and evaporated to the atmosphere. Due to the water-raising effect of this connected vent pipe, unnecessary water can be naturally drained from clayey or poorly drained soil.

Actually, the diatomaceous earth fired particles and the obsidian-based pearlite particles filled in the net bag were buried in the soil with their upper ends exposed, and the water-pumping height was measured for each elapsed day. The result is shown in FIG. As can be seen from FIG. 3, in the case of obsidian-based pearlite, the water level stops at a height of about 4 cm, whereas in the case of the diatomaceous earth fired grains, the height has already exceeded 20 cm after one day, and the height of the diatomaceous earth has increased to 20 days. After the passage, the water was raised to a height exceeding 60 cm.

[0020] The articulated vent pipe of the present invention can obtain a sufficient water-raising effect even if it is buried vertically in the soil. It is also possible to adopt a method in which a large number of continuous passages are buried so as to create a passage in the direction, and the ends are exposed from the slope.

[0021]

[Effect of the invention]

 According to the articulated ventilation pipe of the present invention, it is possible to impart permeability and water retention to the soil, so that it is easy to control the irrigation and fertilization of the trees. Can be released into the atmosphere and can be naturally drained from clayey soils or poorly drained soils, thereby preventing root decay of trees.

In addition, since the connecting vent pipe is used, the diameter of each small cylindrical net bag can be reduced and the amount of diatomaceous earth fired particles to be filled can be reduced without changing the entire surface area. It does not damage the landscape when it is done, is economical, and at the same time is easy to handle and bury.

[Brief description of the drawings]

FIG. 1 is a schematic partially cut-away side view showing a specific example of an articulated vent pipe of the present invention.

FIG. 2 is a schematic sectional view showing an example of a method of using the articulated vent pipe of the present invention.

FIG. 3 is a graph showing the water raising action of diatomaceous earth fired particles and obsidian-based pearlite particles used in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connected ventilation pipe 1a Upper end 2 Connected net bag 2a Small cylindrical net bag 3 Diatomaceous earth fired grain 4 Soil 5 Bottom soil 6 Tree

Claims (1)

[Utility model registration claims] 1. A planting connection comprising: a connecting net bag in which two small cylindrical net bags are connected along the longitudinal direction; and diatomaceous earth fired grains having fine pores filled inside the connecting net bag. Vent pipe.