JPH0536511Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to a spraying hose for spraying powder such as chemicals, fertilizers, or seeds using a power sprayer.

(Prior Art) In recent years, with the spread of power sprayers, granules such as chemicals, fertilizers, seeds, etc. are being sprayed using spray hoses. As shown in FIG. 5, a conventional well-known spraying hose has a long hose body 1 with through holes 2 formed in a row at predetermined intervals in the longitudinal direction, and a power spreader (not shown) for the through holes 2. A collision wall 4 is vertically protruded on the opposite side, that is, on the leeward side. 4B, and the granules A, such as chemicals, sent out with wind pressure by a power spreader hit the collision wall 4 and then were spread out from the through holes 2 in a diffused state.

However, in this case, since the collision wall 4 is vertical, the particles A tend to accumulate at the corners, and the collision wall 4 tilts or displaces due to wind pressure, resulting in uneven distribution. That is, when the granules A are spread on rice fields etc., a density difference occurs.

Therefore, in Japanese Utility Model Application Publication No. 62-31954, multiple spray holes were provided on the same line at intervals in the hose body,
A cylindrical discharge member is welded to this dispersion hole, and a collision plate that is inclined forward with respect to the direction of movement of the granules is removably provided inside the hose body on the inner peripheral surface of this discharge member. Spraying hoses have been proposed, and
Japanese Utility Model Publication No. 50-31424 describes a roughly ship-shaped hose body in which a plurality of nozzles are provided in the same line on a double-structured hose body having an inner and outer dispersion pipe, and one end is opened between the inner and outer dispersion pipes at the nozzle. Spraying of chemicals, etc. is carried out by interposing a conical cylinder divided into upper and lower halves, welding these inner and outer dispersion pipes and the conical cylinder, and protruding from the hose body so as to be inclined forward with respect to the direction of movement of the granules. tube is proposed.

(Problems to be solved by the invention) In the conventional example, since the collision plate and conical tube are provided protrudingly inside the hose body so as to block the powder flow path, the collision plate and the conical tube are disposed behind the collision plate and the conical tube. However, in the conventional example, the collision plates and conical tubes are arranged in the same line, so in order to suppress the influence of the air vortices caused by the collision plates, it is necessary to increase the distance between the dispersion holes. This limits the number of spray holes per unit length of the hose body, making it impossible to spread the powder uniformly. Furthermore, in the device disclosed in Japanese Utility Model Application Publication No. 62-31954, a collision wall is removably provided on the discharge member welded to the periphery of the dispersion hole by concave-convex fitting, and the mounting strength of the collision wall is weak. There is a risk that the collision plate may come off due to wind pressure. Also, Mikiaki
The one in Publication No. 50-31424 has a structure in which a conical tube is welded between the inner and outer dispersion pipes and the conical tube protrudes inside the hose body, so the hose body has a complicated double structure consisting of the inner and outer dispersion pipes. Therefore, there are many parts,
This not only complicates the manufacturing process, but also increases the weight of the hose itself, making it laborious to hold the hose in your hand and making it difficult to route the hose. Furthermore, although a conical cylinder is placed inside the hose body to capture the powder, there is no guiding structure for the powder to be sprayed from the nozzle on the outside of the hose body, so the direction of the powder spouted from the nozzle is There was a problem in that the powder was not uniformly distributed and efficient powder dispersion could not be performed.

The present invention was developed based on the above-mentioned problems, and it is possible to firmly fix the guide body to prevent damage to the collision wall and the area around the through hole, and to suppress the influence of air vortices generated behind the collision wall. To provide a spraying hose capable of forming many diffusion ports per unit length of a hose body and guiding powder ejected from the diffusion ports to efficiently disperse the powder.

[Structure of the invention] (Means for solving the problem) The spraying hose of the invention has a plurality of through holes along the longitudinal direction of the elongated hose body made of a soft resin material, and the through holes are filled with powder. In a spraying hose provided with a guide body for body spraying, the through holes are provided alternately on the left and right in the longitudinal direction of the hose body, and the guide body includes a hole on the periphery of the through hole on the outer surface of the hose body. A flange portion to be welded is provided, a diffusion hole communicating with the through hole is provided in the flange portion, and a guide tube portion that surrounds the diffusion hole is provided protruding from the lower surface of the flange portion, and the upper surface of the flange portion is provided with a diffusion hole that communicates with the through hole.
A collision wall that captures the powder is provided so as to project into the hose main body through the through hole, and the collision wall is connected to the diffusion hole in a semicircular manner from a semicircular tip facing the upper part of the diffusion hole. It is formed into a half-cone shape extending to the base end surrounding the powder, and is inclined forward with respect to the traveling direction of the powder.

(Function) When the granules A are sent into the hose main body 11 with air from the power spreader 12, the granules A collide with the collision wall 19 and then can be discharged to the outside from the diffusion port 16. At this time, the flange portion 18 is welded to the periphery of the through holes 13 and 14 on the outer surface of the hose body 11, and is firmly attached and fixed to the hose body 11, thereby preventing damage to the collision wall 19 and the vicinity of the through holes 13 and 14. Diffusion port 1
By arranging the diffusion ports 6 alternately, a large number of diffusion ports 16 can be provided per unit length of the hose body 11. Further, the particles A ejected from the diffusion port 16 are guided by the guide tube portion 17 and ejected.

(Embodiment) Figures 1 to 3 show the first embodiment, in which reference numeral 11 is a hose body to which a power spreader 12 is connected at one end, and is made of a thin soft synthetic resin such as polyethylene or vinyl resin. . The hose body 1
Through holes 13 and 14 are provided on the lower surface side of 1. The through holes 13 and 14 include first through holes 13 arranged in a row along the longitudinal direction of the hose body 11, and a hole located approximately in the center between the first through holes 13 in the radial direction of the hose body 11. It consists of a second through hole 14 disposed in the longitudinal direction of the hose main body 11 so as to be biased towards each other. That is, the first and second through holes 13 and 14 formed in the hose body 11
has a width W (=10~15mm) and a distance L in the longitudinal direction.
They are arranged alternately on the left and right.

15 is a diffusion port 1 fixed to the through holes 13 and 14;
It is a thick guide body made of synthetic resin having a diameter of 6, and is fixed by ultrasonic welding or high frequency welding. The guide body 15 has a flange portion 18, which has a larger diameter than the guide tube portion 17 and is welded to the periphery of the through holes 13 and 14, formed at the upper end of the guide tube portion 17 that forms the diffusion port 16 in the center; Furthermore, the flange portion 18
The upper end 19A faces the windward side, that is, the side opposite to the power spreader 12.
≦θ<90°, preferably θ≒70°). The collision wall 19 is formed into a half-cone shape, which gradually widens from a semicircular tip facing the upper part of the diffusion hole 16, and whose base end surrounds the diffusion hole 16 in a semicircle. Moreover, it is provided so as to be inclined forward with respect to the direction of movement of the powder A.

The operation of the above structure will be explained.

Powder A, which is a chemical or the like, is force-fed from the power spreader 12 to the hose main body 11 together with wind power, and the granules A collide with the collision wall 19 and are sprayed downward from the diffusion port 16 onto the rice field, etc. In this case, since the diffusion port 16 is formed in the thick guide body 15 made of synthetic resin, wear resistance can be improved, and even if the granules A are square, the corners of the granules A can cause cracks. It can be used for a long period of time because it is difficult to cause. In addition, the collision wall 19 has an upper end 19A.
is inclined toward the windward side of the hose main body 11, so the particles A that hit the collision wall 19 are repelled toward the diffusion port 16, and are diffused by the diffusion port 16 at a high speed to reach the guide tube section. Since it is guided and scattered by 17, the granules A can be spread over a wide range. Furthermore, since the guide bodies 15 are arranged alternately, the rows on one side are not affected by the vortex generated behind the collision wall 19 provided on the other row. Therefore, in one row, even if the distance L between the front collision wall 19 and the rear diffusion port 16 is a predetermined distance, many diffusion ports 16 can be provided per unit length of the hose body 11. , the granules A can be uniformly spread over rice fields, etc.

As described above, the through holes 13 and 1 are formed in the hose body 11.
4 and by welding the thick flange portions 18 of the guide body 15 to the through holes 13 and 14, the collision wall 19 can be firmly fixed to the hose main body 11, and the collision wall can resist wind pressure. 19 damage and holes 1
3, 14, damage around the diffusion port 16 can be prevented. Furthermore, by providing the collision wall 19 at a forward angle with respect to the traveling direction of the grains A, the grains A can be moved into the diffusion port 16.
The particles A ejected from the diffusion port 16 can be guided by the guide tube 17 to increase the initial velocity of the particles A and be spread over a wide range.

Furthermore, by arranging the guide bodies 15 in two rows with a predetermined width W in the longitudinal direction of the hose body 11, a large number of diffusion ports 16 can be provided per unit length of the hose body 11. Enables uniform dispersion. Moreover, since many diffusion ports 16 can be provided, the diameter of each diffusion port 16 can be reduced, and the collision wall 19 can be made smaller, so the air resistance to be pumped is small and a decrease in the sending force can be prevented. By reducing the weight of the hose body 11, the hose body 11 can be easily routed, reducing labor and making the spraying work more efficient.

It should be noted that the present invention is not limited to the above-mentioned embodiment. For example, as shown in FIG. Furthermore, the guide bodies disposed in the longitudinal direction of the hose body can be arranged in various ways, such as in addition to two rows, three or more rows may be arranged in parallel depending on the diameter of the hose, etc.

[Effects of the invention] The present invention provides a spraying hose in which a plurality of through holes are provided along the longitudinal direction of a long hose body made of a soft resin material, and a guide body for dispersing powder is provided in the through holes. Through holes are provided alternately on the left and right in the longitudinal direction of the hose body, and the guide body is provided with a flange portion that is welded to the periphery of the through hole on the outer surface of the hose body, and the flange portion is provided with a flange portion that is welded to the periphery of the through hole on the outer surface of the hose body. A diffusion hole communicating with the hole is provided, a guide cylinder portion surrounding the diffusion hole is provided protruding from the lower surface of the flange body, and a collision wall for capturing the powder is provided on the upper surface of the flange portion through the through hole. The collision wall is formed into a half-conical shape extending from a semicircular tip facing the upper part of the diffusion hole to a base end surrounding the diffusion hole in a semicircle. form, and
By slanting forward with respect to the traveling direction of the powder, the guide body is firmly fixed to prevent damage to the collision wall and the vicinity of the through hole, and also to prevent air vortices generated behind the collision wall 5. It is possible to form many diffusion ports per unit length of the hose body by suppressing the influence of
It is possible to provide a spraying hose that can efficiently spread powder by guiding powder spouted from a diffusion port.

[Brief explanation of the drawing]

Figures 1 to 3 show the first embodiment, in which Figure 1 is a partially cutaway front view showing the state in which the hose body is connected to the sprayer, Figure 2 is a perspective view of the guide body, and Figure 2 is a perspective view of the guide body. 3 is a plan sectional view, FIG. 4 is a sectional view of another embodiment, and FIG. 5 is a sectional view of a conventional example. 11... Hose body, 13, 14... Through hole, 1
6... Diffusion port, 15... Guide body, 17... Guide cylinder part, 18... Flange part, 19... Collision wall, A...
…powder.

Claims (1)

[Scope of utility model registration request] In a spraying hose, a plurality of through holes are provided along the longitudinal direction of a long hose body made of a soft resin material, and a guide body for dispersing powder is provided in the through holes. The guide body is provided with a flange portion that is welded to the periphery of the through hole on the outer surface of the hose body, and the flange portion is provided with a diffusion hole that communicates with the through hole. At the same time, a guide cylinder part surrounding the diffusion hole is provided protruding from the lower surface of the flange part,
A collision wall that captures the powder is protruded from the upper surface of the flange portion and faces into the hose body through the through hole, and the collision wall has a semicircular tip facing the upper part of the diffusion hole. The dispersion is characterized in that it is formed in a half-conical shape from the diffusion hole to the base end surrounding the diffusion hole in a semicircular shape, and is installed obliquely so as to be tilted forward with respect to the traveling direction of the powder. hose.