TW201218943A - capable of increasing air and water permeability of soils for garden and street trees - Google Patents

Abstract

The invention relates to a soil improvement appliance, including a nozzle which has a gas spout provided with compressed air and is disposed on front end of a pipe that is connected with a compressed air supply device, capable of ejecting compressed air from the gas spout of the nozzle to dig holes on soil. The soil improvement appliance of this invention is characterized in that the nozzle is featured that the nozzle outer periphery at the maximum diameter is more prominent than outer diameter of the pipe, in such a manner that the ratio of the circular area calculated at the nozzle maximum diameter minus an area calculated at the pipe outer diameter to an area of the air spout of the nozzle is more than five, and the nozzle is substantially located at a straight line registered with the slightly linear pipe in the digging direction.

Description

201218943 VI. Description of the Invention: [Technical Field to Which the Invention Is Ascribed] The present invention relates to a soil improving device. More specifically, it relates to a soil improving device capable of improving the air permeability and water permeability of soil in which trees such as garden trees and street trees are planted. [Prior Art] Soils that are rooted in trees such as garden trees and street trees are hardened by trampling or growing at the roots of trees, and the soil permeability and water permeability are deteriorated over the years. The deterioration of the aeration and water permeability of the soil is caused by insufficient supply of oxygen or water to the roots of the plants, and also adversely affects the growth of trees. To relieve this state, consider excavating the soil at the root of the tree. However, when the soil is inserted into the soil and excavated by using a sharp-edged tool such as a soil shovel, the appliance may be in contact with the root of the plant to cause damage to the root, and when the soil of the street tree is improved, the damage is disposed. The possibility of soil embedding such as various types of piping such as gas, electric power, and water and sewage is high. In the air-type earth-and-sand treatment device of the first aspect of the invention, the air-type earth-and-sand treatment device of the first aspect of the invention is provided with an injection nozzle at the distal end portion, a tube inserted into the ground at the injection nozzle-side end portion, and a tube inserted from the ground. The air-type earth-sand processing device in which the tip end is supported by the outer peripheral surface at the position where the interval is interposed, and the tapered body is expanded outward toward the front end side, and the air supply means for supplying compressed air to the ground insertion tube is provided. Insert in the ground

S -5- 201218943 After the tube is inserted into the ground, the compressed air is sprayed from the spray nozzle by using high pressure, and the soil sand around the tube portion inserted into the ground is excavated, and even the gap between the roots of the tree does not cause damage, and the rhizome can be performed. Drill up the survey or restore the soil sand treatment according to the soil improvement landscape. According to the soil improvement treatment using the air-type soil sand treatment device, (1) by excavating the hole in the soil, the part of the soil is exported to the surface, so that the soil density per unit area is reduced (2) The hole is filled with soil improving material, so that the effect of soil improvement can be sustained for a long period of time. (3) By making the compressed air contact with the soil, the gap on the soil surface of the excavation portion is increased, and the water absorption and air permeability are improved (4) The compressed air in the work penetrates into the soil, and the roots in the soil are easy to provide oxygen, etc., but when using the air-type earth-sand treatment device described in this document, it is necessary to continuously deliver 7-8 pressures of compression. Air, which makes the total amount of compressed air necessary at the end, increases, and must use, for example, a large air compressor with a weight of about 1 ton. In the finishing of trees such as garden trees and street trees, there is a lack of workability, air. The handling of the compressor is not easy. Because of the high discharge capacity of the soil, the soil rebounding to the operator is also serious, making it difficult to carry out the work, and there is also the problem that the whole body is soiled by the soil after the operation. In addition, the air type soil sand treatment device has a certain outer diameter of the nozzle, and the diameter of the nozzle is as large as 30 mm in diameter, and is protected from the root source of the high-density staggered root or the root source for the street tree or the like. The insertion of the nozzle of the gap of the plate is difficult. Furthermore, due to the entire device containing the hose

S -6- 201218943 The weight is large, the amount of air ejected is 3.5~4.0m3/min (3 500 ^ 1/min), which is complementary to the size of the outer diameter of the nozzle. It also hurts the rough root from the difficulty of connection. The possibility. There are many cases where the damage of the roots of the roots begins to decay. As a result, the trees themselves are injured, so they are particularly required to pay attention to soil improvement operations. [PRIOR ART DOCUMENT] [Patent Document 1] Japanese Laid-Open Patent Publication No. 2006-22547 [Patent Document 2] Japanese Laid-Open Patent Publication No. SHO-62- 1 3 8 1 03 SUMMARY OF THE INVENTION The object of the present invention is to provide a soil improving device which is also suitable for the arrangement of trees such as garden trees and road trees, and which can improve the air permeability of the soil and the selected soil. (Means for Solving the Problem) The object of the present invention is to provide a soil conditioner in which a nozzle having an air blast port of compressed air is provided at a tip end portion of a pipe member of a compressed air supply device, and a compressed air is discharged from the port to excavate the soil into a hole shape. Using the area calculated by the area of the circle with the largest outer diameter of the nozzle as the diameter _ the outer diameter of the nozzle/the nozzle air outlet area is 5 or more and 4000, the water-damaged water is connected to the street by the pipe method S % 201218943 ' The outer diameter of the outer peripheral portion of the nozzle is more bulged than the outer diameter of the tube, and is achieved by a soil improving device having a nozzle on the same line as the slightly linear tube in the direction of the digging. Preferably, the nozzle is used in a detachable state. (Effects of the Invention) In the soil improvement device according to the present invention, the use is (the area calculated by the maximum outer diameter of the nozzle as the diameter of the circle - the area calculated from the outer diameter of the tube) / the nozzle orifice area is 5 or more. a nozzle having a maximum outer diameter of the outer peripheral portion that is more bulged than the outer diameter of the tube, such that it is approximately in line with a slightly linear tubular member facing the digging direction, on the side of the tubular member that is inserted into the soil and is higher than the nozzle In the middle, it is easy to form a gap corresponding to the difference between the maximum outer diameter of the nozzle and the outer diameter of the pipe, and as a result, the exhaust passage of the compressed air sprayed in the soil is ensured, thereby achieving an excellent effect of significantly improving the efficiency of the soil improvement operation. . Further, by making the nozzle end portion tapered, it is possible to avoid the root of the plant or the obstacle to promote soil improvement work. Further, in the case of using the soil improving device, since the high pressure of 25 atmospheres can be used instantaneously, the total amount of compressed air to be used is reduced as a result, and the air type soil sand treatment used in the prior art is used. The air compressor (compressed air supply device) used can be compared by a small person or the like. Therefore, it can also be effectively used in the gardening of trees or street trees. In addition, since the air discharge time is shortened sufficiently, the rebound of the soil is small, and the workability is also improved. On the one hand, even the maximum outer diameter of the nozzle is used because it can be used than conventionally used.

S -8- 201218943 If the soil improvement device is finer, it can be inserted into the nozzle of the soil improvement device from the gap of the metal protection plate that is difficult to move. In addition, since the roots of the trees are thick and the number is large, and the distance from the root source is thinner and the number is smaller, the nozzle located at the front end of the pipe near the root source is thick because the root becomes an obstacle. The nozzle must not be penetrated and must be thin. On the one hand, the farther the root is from the root source, the more the root can be thickened. The use of the detachable 'nozzle can be used without replacing the whole tube. The vicinity of the root of the tree to the periphery of the tree, the size of the nozzle can be appropriately changed according to the density of the root, and the effect of miniaturizing the prepared machine can be achieved. In this way, by using the soil improving device according to the present invention to supply compressed air in the soil, the labor force is significantly reduced as compared with the conventional one, and in the state of improving workability, the oxygen concentration in the soil can be increased, and the growth of the plant can be made. The productivity is improved and the quality is improved, and the roots of the plants in the poorly drained land can be prevented from decaying, and the task of deep cultivation can be achieved. [Embodiment] The soil improving tool according to the present invention is characterized in that a nozzle having a jet opening having compressed air is provided at a tip end portion of the pipe connected to the compressed air supply device, and the circle is calculated by a diameter of the largest outer diameter of the nozzle. The area - the area calculated from the outer diameter of the pipe) / the nozzle air discharge area is 5 or more, so that the outer diameter of the outer peripheral portion of the nozzle is more bulged than the outer diameter of the pipe, and the nozzle is located slightly opposite to the digging direction. Straight tubes are approximately on the same line.

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S -9 - 201218943 In the present invention, the term "nozzle" means a hollow used in the flow direction of a fluid of a liquid, and the nozzle is widely used as a nozzle for controlling the characteristics of the fluid of the pressure of the flowing substance. In other words, the compressed outer space (the area of the circle B calculated by the maximum outer diameter of the nozzle) is used. The nozzle outer diameter is 5, and the maximum outer diameter is larger than the outer diameter of the pipe. It is preferable to set it on the front end side of a nozzle, either on either side side. In the hole for forcibly discharging compressed air, the nozzle is opened by using the nozzle, and the nozzle is located on the same line as the pipe member facing the straight line, and the outer diameter of the upper pipe member is easy to be outside the pipe and the pipe. The gap between the outer diameters ensures an excellent effect in the exhaust passage of the air, thereby achieving significant improvement. Therefore, when the nozzle is not used and the diameter is the same as the outer diameter of the pipe, it is difficult to ensure that the discharge efficiency of the compressed air discharged from the port to the surface is lowered because no gap is formed between the soil and the soil. Here, the proportional diameter of the bulging is the circular area calculated from the diameter - the area from the outer nozzle of the pipe is 5 or more, preferably in order to fix a mechanical part such as a gas or a tube. A flow rate, flow rate, direction, and helium nozzle opening are calculated as the δ product - the outer diameter of the tube is calculated from the outer diameter of the tube. Although the air vent can be set, the excavation of the soil, the so-called vent is the smallest area. By the direction in which the excavation of the soil is slightly inserted into the soil, the nozzle is formed in response to the improved efficiency of the compressed soil sprayed in the largest soil of the nozzle or the outer side of the outer peripheral portion of the pipe is formed in the surface of the pipe from the nozzle. Use of soil drainage (area calculated by the maximum outer diameter of the nozzle) / spray 10 or more. Here, spray

S -10- 201218943 The maximum outer diameter of the mouth is the area calculated by the diameter of the circle - the area calculated from the outer diameter of the pipe indicates the sectional area of the soil that can be excavated by bulging the nozzle'. The so-called outer diameter of the pipe is calculated. The area is the cross-sectional area of the tube including the hollow portion, for example, in the cylindrical tube, the circular area is the diameter of the tube outer diameter. Further, the circular area calculated by the maximum outer diameter of the nozzle is, for example, a nozzle of the form shown in Figs. 3 to 5, which is different from the sectional area of the nozzle in the largest outer diameter portion. Further, Patent Document 2 describes that the compressed air is supplied from the air supply pipe to the air blowing gas provided in the nozzle portion having the tip end side in the shape of an arrow, and the compressed air is ejected upward from the upwardly opening gas injection hole in the nozzle portion. In the soil improvement working unit, the first embodiment shows a nozzle portion having a larger outer diameter than the outer diameter of the air supply pipe or the air blowing gas. However, since the nozzle portion is not located on the same line as the pipe member which is slightly linear to the surface of the excavation direction toward the soil as in the present invention, the side of the pipe member inserted into the soil above the nozzle is formed to react with the soil. The technical idea of the gap between the largest outer diameter of the pipe and the outer diameter of the pipe is not mentioned at all. Therefore, it is impossible to completely achieve the excellent effect achieved by the present invention which ensures the exhaust passage of the compressed air ejected in the soil, thereby significantly improving the efficiency of the soil improvement work. Further, in the case of the nozzle, it is preferable that at least one of the end portions has a tapered shape. More preferably, the nozzle end portion to which the tube member is connected has a tapered shape. By making the nozzle tip into a tapered shape, it is possible to avoid the plant roots or obstacles to promote soil improvement work. Therefore, the angle of the taper of the nozzle end connected to the pipe member is preferably sharp, and particularly preferably 6 turns. the following. Further, in the case where the both end portions have a tapered shape, in other words, the apex angle of the conical surface of the side surface constituting the tapered portion is preferably 120 or less, and more preferably 90 or less. Therefore, by returning to the original position by the root pushed by the nozzle tip end portion and the nozzle bulging portion, it is easy to alleviate the situation in which the nozzle is pulled out when the nozzle is pulled out. On the other hand, since the digging force is lowered when the angle of the taper portion of the tip end portion of the nozzle is too sharp, it is preferably 60 or more. Embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view showing a basic state of the present invention, in which a jet port 2 having compressed air is provided at a front end portion of a pipe member 1 connected to a compressed air supply device (not shown), and (the maximum outer diameter of the nozzle is a diameter) The calculated circular area - the area calculated from the outer diameter of the tube) / the nozzle air outlet area is 5 or more, and the nozzle 3 having the largest outer diameter of the outer peripheral portion is more bulged than the outer diameter of the tube. In this aspect, although the gas jet port is located at the most distal end portion of the nozzle, when the minimum inner diameter of the nozzle exists inside the nozzle, the portion showing the minimum inner diameter in the nozzle tip end direction is the nozzle air outlet. The bulging portion formed to be larger than the outer diameter of the pipe member may be either solid or hollow, and the present invention is not limited to this. In this embodiment, the nozzle cross section may be a circular 'elliptical or polygonal columnar body or a cylindrical body, and preferably a columnar body having a triangular or more shape. In the columnar body, a commercially available nut may be used in combination with the outer peripheral portion of the tip end of the pipe member. In the state shown in Fig. 2, both ends of the nozzle have a tapered shape indicating an acute angle. In other words, the bulging portion is formed in a mountain shape in the longitudinal direction by sequentially increasing the diameter from the front end portion of the nozzle 3 and then sequentially reducing the diameter.

S -12- 201218943 In the state shown in Fig. 3, for the mountain-shaped bulging portion of the state shown in Fig. 2, one or a plurality of grooves 4 are engraved in the longitudinal direction. By forming such a groove, the impedance at the time of nozzle insertion into the soil can be further reduced. Further, in the state shown in Fig. 4, the columnar bodies 5, 5', 5'', and 5''' are formed as the bulging portions at the tip end portion of the nozzle, and the front end of the columnar body is wider than the nozzle air outlet. 2 extends further forward. According to this aspect, the digging force can be improved compared with the pattern of the first to third figures. As a result, the columnar system is provided for the purpose of excavating the soil to be excavated, etc., and the number thereof is not particularly limited. In order to cut the root which is squeezed between the columnar bodies in this columnar system, it is preferable to use a tip having a tip end portion as shown in Fig. 4. In the state shown in Fig. 5, the columnar bodies 5, 5', 5'', and 5''' of the form shown in Fig. 4 are embedded in the shape of the ring member. When the ring member is a fitting columnar body, the shape thereof is not particularly limited, and a polygonal shape may be used in addition to a circular shape. By fitting the ring member in the columnar body, it is possible to further increase the digging force. Further, in addition to the ring member, the tip end portion of the columnar body can be placed in the vicinity of the discharge port by the state shown in Fig. 5. The nozzle shape is not limited to these embodiments, but it is preferable to use a nozzle having a shape as shown in Fig. 4 from the viewpoint of ease of insertion into the soil. As for the compressed air supply device, an air compressor or the like can be used as it is, generally a high pressure of about 5 atmospheres to a high pressure of 30 atmospheres, and is sold as a device for supplying (compressing) air. Among them, „S: -13- 201218943 Planting garden trees, trees such as street trees, or indoors for cultivating vegetables and fruits, etc., preferably from the viewpoint of workability, can be used at 10 to 25 A high-pressure pressure of 150 to 80 L/min is supplied to a lightweight compressed air supply device of, for example, about 20 kg. The pipe connected to the compressed air supply device is approximately straight (straight). It is not particularly limited, and it is possible to use a material that can withstand high pressure from the inside and can withstand the friction or impact from the outside. The length or the outer diameter can be appropriately set depending on the soil state to be improved, and can be used. For example, a diameter of 90 to 160 cm and an outer diameter of about 6 to 10 mm. The nozzle of the air outlet having compressed air at the tip end of the pipe is attached to the straight line of the pipe which is slightly linear. It can be carried out in a state in which it cannot be attached or detached by welding or the like, but it is preferably a method that can be freely attached and detached. The nozzle can be removed by a method such as a screw-in type. The nozzle can be removed, and the entire tube can be replaced from the vicinity of the root of the tree. The size of the nozzle can be appropriately changed according to the root density, and the prepared machine can be miniaturized. The connection between the pipe member and the compressed air supply device is carried out using, for example, a tubular body such as a hose, which is preferably a float valve for controlling the discharge of compressed air, etc. The pipe member behind the nozzle can be arranged to suppress the injection of compressed air. The scattered soil is scattered, and the soil to be sprayed is prevented from being covered by the cover. In the case of the cover, a bucket-shaped person who is deployed toward the nozzle or a bowl having a flange portion toward the front end portion of the pipe member is preferably used. Bowl-shaped

S -14- 201218943 Any shape can prevent the sand from scattering toward the upper part. However, by using the bowl-shaped soil to prevent scattering, the soil sand scattered in the horizontal direction can be concentrated around the hole inserted into the nozzle. . The soil improvement operation using the soil improvement tool formed by the above configuration is performed by inserting the nozzle into the soil, and then using the compressed air supply device to eject the compressed air to repeatedly dig the soil near the gas injection port at the tip end portion of the nozzle. . At this time, the air discharged from the air vent is discharged to the ground through the side of the pipe, and at the same time, part of the soil that has been plucked is also blown toward the surface to reduce the density of the soil in the ground. [Examples] Next, the present invention will be described with respect to examples. Example 1 A nozzle of the same type as shown in Fig. 1 was used (air nozzle of nozzle: 2.35 mm, outer diameter of pipe: 6.35 mm, maximum outer diameter of nozzle: 11.5) Mm, (the maximum outer diameter of the nozzle is the area calculated by the diameter - the area calculated from the outer diameter of the pipe) / nozzle cross-sectional area = 16.65). The soil improvement device is set on the same line as the slightly linear pipe. The air compressor EC1443H manufactured by Hitachi Kogyo Co., Ltd. was used to discharge the compressed air at a pressure of 25 to 10 atmospheres for soil improvement work until underground mining was performed at 90 cm. When water is absorbed from the trees on the next day of operation, it is determined that the drainage is significantly improved compared with that before the operation. Example 2

S -15- 201218943 Use the nozzle shown in Figure 3 (nozzle 2.5 0mm, pipe outer diameter: 9.0mm 'nozzle maximum outer diameter (the maximum outer diameter of the nozzle is the diameter of the circle - from the pipe) Area) / nozzle air outlet sectional area = 23.04) Set the line-shaped pipe fittings to perform the soil improvement operation on the same line as the soil improvement equipment, until the underground 50 cm is used for the water absorption of the trees every other day, before the operation It is better than the drainage situation. Example 3 A nozzle having the state shown in Fig. 3 was used (nozzle 2.5 0 mm 'tube outer diameter: 9.0 mm, nozzle maximum outer diameter (nominal outer diameter of the nozzle is calculated from the diameter - the area from the tube) / Nozzle air outlet sectional area = 5 1.04) Set the line-shaped pipe fittings to perform the soil improvement operation on the same line as the soil improvement equipment, until the underground water is 5 〇cm, and the water is absorbed by the trees every other day, compared with before the operation. The drainage situation is indeed true. Example 4 The nozzle shown in Fig. 4 was used (nozzle 2.50 mm, outer diameter of the pipe: 9.53 mm, maximum outer diameter of the nozzle (circular area calculated from the maximum outer diameter of the nozzle - the area from the pipe) / The nozzle air outlet sectional area = 21.47) was set to a jet port: : 15.0 mm, and the outer diameter of the piece was calculated to be slightly straight, and excavated in the first embodiment. At work: a significantly improved air jet: : 2 0.0 mm, the outer diameter of the piece is calculated to be slightly straight, and excavated with Example 1. In the case of making a significant improvement in the air vent: : 15.0mm, the outer diameter of the piece is calculated and slightly straight

S -16- 201218943 The pipe fittings were about the same as the soil improvement tool on the same straight line. The soil improvement work was carried out in the same manner as in Example 1 until the underground excavation was carried out at 150 cm. When water is absorbed from the trees on the next day of operation, it is determined that the drainage is significantly improved compared with that before the operation. In the reference example, the nozzles of the state shown in Figures 1, 3, and 4 are used to perform soil improvement work on the trees from the gap of the root source protection plate. When the situation of the trees (tree potential) is confirmed after 5 months, compared with before the operation. Make sure the tree is getting better. This means that soil improvement can be effectively carried out by using the soil improving device of the present invention. [Industrial Applicability] The soil improvement device of the present invention is used as a tree ridge in a greenhouse, a room, a planting dish, or a field in a field in which trees such as garden trees and street trees are cultivated. The soil improving device used in the place where the root of the plant can be extended can be widely used. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a mode in which the area of the circle calculated by the maximum outer diameter of the nozzle is calculated from the outer diameter of the pipe, and the nozzle air passage area is 5 or more. A perspective view in which the maximum outer diameter of the outer peripheral portion of the nozzle is made larger than the nozzle of the soil improving device of the nozzle which is more bulged than the outer diameter of the tube. % -17-201218943 Fig. 2 is a view showing a method in which the area of the circle calculated by the maximum outer diameter of the nozzle - the area calculated from the outer diameter of the tube is the same as that of the nozzle of the present invention, and the nozzle orifice area is 5 or more. A perspective view of the nozzle of the soil improving device of the nozzle that makes the outer diameter of the outer peripheral portion of the nozzle larger than the outer diameter of the tube. Fig. 3 is a perspective view showing a state in which a groove portion is further engraved in the longitudinal direction in the state shown in Fig. 2. Fig. 4 is a view showing that the area of the nozzle has a diameter of (the area calculated from the maximum outer diameter of the nozzle - the area calculated from the outer diameter of the tube) / the nozzle orifice area is 5 or more, and the outer peripheral portion of the nozzle is provided. A perspective view of another aspect of the nozzle of the soil improving device of the nozzle having a larger outer diameter than the outer diameter of the tube. Fig. 5 is a perspective view showing the state in which the circular ring member is further fitted in the state shown in Fig. 4. Fig. 6 is a perspective view showing the front end portion of the soil improving device without the nozzle. [Description of main component symbols] 1 : Pipe 2 : Air vent 3 : Nozzle 4 : Groove 5, 5', 5'', 5''': Column 6 : Ring member

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Claims (1)

201218943 VII. Scope of application: 1. A soil improvement device is a nozzle having a jet port with compressed air at the front end of a pipe connected to a compressed air supply device. 'Squeeze air from a jet port to dig the soil into a hole shape. The soil improvement device is characterized in that the outer circumference of the nozzle is maximized so that the area of the circle calculated by the maximum outer diameter of the nozzle - the area calculated from the outer diameter of the tube is 5 or more. The outer diameter is more bulging than the outer diameter of the tube and is located on the same line as the slightly straight tubular member facing the digging direction. 2. The soil improving device of claim 1, wherein the nozzle has a tapered shape at one end or both ends. 3. The soil improving device according to claim 1 or 2, wherein the nozzle has a circular, elliptical or polygonal columnar body or a cylindrical body. 4. The soil improvement device of claim 2, wherein the nozzle is a groove in the longitudinal direction. 5. The soil improvement device of claim 1 or 2, wherein the nozzle is provided with a column at the front end portion, and the front end of the column extends further forward than the gas injection port. 6. The soil improving device of claim 5, wherein the ring is further fitted to the front end of the column. 7. The soil improvement device of claim 1, wherein the nozzle is freely detachable from the body of the pipe. 8. The soil improving device of claim 1, wherein the bowl-shaped spouted soil is prevented from being attached to the pipe member by covering. -19-201218943 9. A nozzle for use in a soil improving implement according to any one of claims 1 to 8. A soil improvement method characterized by using a soil improving device according to any one of claims 1 to 8 and using a compressed air supply device to inject 10 to 25 atmospheres of compressed air for soil improvement. S -20-