JPH04917Y2 - - Google Patents

Description

[Detailed description of the invention] This invention fixes the reaching jet head attached to the front end of the multi-mouth hose jet head to the tip of a retractable connecting rod, and improves the ability of relatively fine particles to reach the material to be sprayed. In addition to improving uniform dispersion,
This invention relates to a sink multi-mouth dispensing device for granules that can be easily handled during transportation, storage, maintenance, etc. by storing the front connecting rod into the rear end of the rod as needed.

Conventionally, when spraying chemicals or fertilizers using a power spreader, especially a backpack power spreader, in the case of one worker, as shown in Fig. 1, a worker 2 carrying the backpack power spreader 1 , an appropriate number of hard injection tubes 4, 5, 6 etc. made of synthetic resin are joined to the tip of the bellows tube 3 to form an appropriate length (usually about 2 m), and chemicals or fertilizers are sprayed. It was common.
However, in such a method, it is difficult to increase the rigidity of the jet pipe as a whole due to the accumulation of manufacturing errors in the jet pipes to be joined, and there is a risk that the spraying work will be hindered.
When granular chemicals, fertilizers, etc. are relatively large in diameter, they can be sprayed up to a distance of approximately 15 meters.
When the diameter is about 1mm or less, the reach distance is only about 11m, so if there is a width of about 30m in a rice field, for example, it is impossible for one person to spray from the ridge. This requires considerable effort on the part of the workers, as they have to step into the wet fields to spray.
It was difficult to avoid drawbacks such as a decrease in the efficiency of spraying work. In order to correct this drawback, the middle part of a long jet pipe with nozzles arranged in parallel at appropriate intervals is supported by an annular hanging device attached to a telescopic support pipe, and the direction of the jet pipe is controlled. A type that can be changed arbitrarily and the length of the support tube can be adjusted arbitrarily (for example, see Japanese Patent Publication No. 46-26809)
However, during the spraying operation, the telescopic support pipe itself expands and contracts unexpectedly due to engine vibrations and pressurized wind passing through the long jet pipe, causing the annular hanging device supported by the support pipe to expand and contract. oscillates, bending and bending the elongated jet pipe, and if this causes the spray to become a little distorted, there is a risk that the spray will not be uniformly sprayed from the nozzle. In order to improve these shortcomings, we have further developed a system in which nozzles are arranged in parallel on the underside of the long hose, which is supported by a hanging ring attached to the hose support rod.
On the other hand, a method has been proposed in which a spout is formed at the tip of a spout casing that is fitted and fixed to the tip of a long hose (for example, see Japanese Utility Model Publication No. 46-22588). To select the direction in which the spray agent is sprayed from the tip of the long hose,
Finally, after selecting the ejection casing at a predetermined position relative to the long hose, the tightening bands and bolts must be tightened. forced to change clothes,
It is difficult to avoid the disadvantage that it is complicated for the operator.

This idea was developed by focusing on the drawbacks mentioned above, and even when the diameter of the granular drug or fertilizer is relatively small, for example, about 1 mm or less, a reach distance of at least about 15 m can be obtained. During work, the hose can be sprayed uniformly without accidentally deforming or bending locally, and the length of the spraying hose can be easily adjusted as necessary, allowing transportation, storage, etc. This makes it easier to handle during maintenance, etc.

Referring to Figures 2 to 5 below, an embodiment of this invention will be described in the case of spraying chemicals or fertilizers using a backpack-powered spreader.The bent pipe 11 is attached to the discharge end of the fan case C of the backpack-powered spreader A.
Connect the bellows pipe 12 to the bellows pipe 12, and tighten the rear end of the core pipe 13 (in Figures 2 and 3, the left side is the rear and the right side is the front) which is to be fitted and tightly attached to the bellows pipe 12 with a tightening band b. A thin film multi-hole hose head 14 made of a flexible and foldable material such as polyethylene or vinyl chloride is coated and adhered to the front end of the core pipe 13, and is linearly extended.
The rear part of the cylindrical reaching sink jet 16 is fixed with a screw-like fastener j to the front of the core tube 15 whose rear part is inserted and tightly attached to the front end of the reaching jet head 1.
A bolt-like holding piece d is horizontally suspended and penetrated in the diametrical direction near the front end of the reaching head 16, and is fastened to the protruding end of the holding piece d with a nut-like fixing fitting n. As shown in Figure 5, it is shaped and held in an elliptical shape to increase the reaching performance. Further, a screw is attached to the rear of the support S, which is made up of an appropriate number (four in this case) of connecting rods r ₁ , r ₂ , r ₃ , r ₄ that are arranged in parallel from front to back above the multi-port hose nozzle 14. A grip g is attached to the fastening band 17 fixed with e, and a hook h attached to the lower end of the hanging band 19 can be freely engaged and detached from a support hanging fitting 18 fixed to the connecting rod r ₄ in front of the grip g. The upper end of the suspension band 19 can be hung on the shoulder of the worker P,
Then, the front end of the support hanging fitting 18 is loosely fitted and inserted above the telescopic guard 20 which is fastened to the bellows pipe 12 with screws f, while the hose is inserted into the through hole i bored at the front end of the connecting rod _r4 . The upper end of the steady rest ring k can be attached and detached by inserting and removing the pin U, and furthermore, in front of this connecting rod r ₄ , a connecting rod with a diameter decreasing sequentially is installed.
Locking parts _{t 4 ,} t ₃ , t ₂ , which can freely engage and disengage r ₃ , r 2 , r ₁ ,
t ₂ as a pair by sequentially pointing forward and connecting the pins U by inserting them into the through holes i, and making it possible to attach and detach the upper ends of the hose steadying rings k by each of these pins U, and also to connect each of the pins U By pulling it out, it can be stored sequentially from the front connecting rod to the rear, and the upper ends can be fixed with fasteners q ₁ and q ₂ such as rivets or screws in front of the connecting rod r ₁ at the front end. The lower ends of the generally inverted U-shaped jet head fixing pieces 21 and 22 are fixed above the reaching sink jet head 16 and the core pipe 15 with fasteners q ₃ and q ₄ such as rivets or screws. In addition, collision pieces v are fixed at a predetermined distance below the lower surface of the multi-port hose jet head 14 so as to face diagonally upward inwardly, and immediately after that, a jet hole i ₁ is bored, while a jet hole i 1 is drilled at a rearward position below the reaching sink jet head 16. A guide piece W that can be tilted downward downward from the guide piece W is attached, and a blowout hole _i2 is bored below the guide piece W, so that the chemical or fertilizer granules Z reach the target material m such as rice. It is said that it can be ejected under the . In the figure, 23 is a storage tank for storing chemicals or fertilizers, 24 is a fuel tank, and 25 is an engine.

Since this device has the above-mentioned configuration, during the spraying work, the worker P must connect the connecting rods r ₁ , r ₂ , r ₃ ,
r ₄ is extended in a straight line by locking each pair of locking parts with each other as shown in FIG. After forming and holding the front end of the reaching sink jet head 16 into an elliptical shape as shown in FIG. When pressurized air is sent through the bent pipe 11 to the multi-hole hose jet head 14 and the reaching sink jet head 16, the granules Z in the storage tank 23 are floated and moved forward by the pressurized air, and the granules Z are suspended and moved forward through the ejection holes i ₁ and i _{2 .} It is ejected forward from there and sprayed on the material m to be sprayed. However, when dispersing the lever,
The multi-port hose jet head 14 and the reaching sink jet head 16 are suspended and held in a straight line by a support S consisting of connecting rods _r1 to _r4 . Items with a diameter of about 1 mm or less could not be used, and it was also impossible for workers to spray by themselves in the ridges, forcing them to step into unsprayed materials such as wet fields planted with rice from the ridges. Since it is possible to correct the problem and spray to the desired distance on the ridge, the worker can perform the spraying work on the ridge, so there is no needless wastage of labor, and the sprayer can be attached to the support S. The support band 19 and the grip g can easily maintain the posture during spraying by the multi-mouthed hose nozzle 14 and the reaching sink nozzle ₁₆ , so it is _possible to improve work efficiency. Since an appropriate number of holes are provided along the longitudinal direction, it is possible to uniformly spread the granules, and the spraying effect on the material to be sprayed is improved.
By making the front end of the nozzle 6 oval, it is possible to suppress the diffusion of the chemical outside the desired spray area and improve the reachability. Due to the reaction force based on the reaction force, the floating jet head 16 for reaching the multi-port hose head 14 can be easily held, and the presence of the hose resting ring k prevents the multi-port hose jet head 14 from swinging freely even during spraying. In addition, since the connecting rods r ₁ to _{r 4} forming the support body S are locked with pins U, adjacent connecting rods can mutually rotate and the connection will not loosen, preventing the spreading. The direction can be set reliably in a predetermined direction, and the length of the support S can be adjusted by connecting and disconnecting pins U to connecting rods r ₁ to _{r 4.} Hose of various lengths can be used. Due to the departure of u, connecting rods r ₁ to _{r 4}
Since it can be stored sequentially facing the rear, it is easy to handle when carrying it into a warehouse, storeroom, dirt floor, etc., maintenance, transportation, etc., and it is very convenient for the _user . As the support body S becomes shorter due to the storage of ~ _r4 , the multi-mouthed hose nozzle 14 can also be easily bent, so there is no risk of cracking or damage.
Since there is no concern about unnecessarily complicating the overall structure, it has practical benefits such as being able to be manufactured at low cost and widely supplied to general consumers.

In the above embodiments, the description is given of the application to a backpack-type power spreader, but the invention is not limited thereto, and can also be applied to a stationary power spreader for greenhouse cultivation.

[Brief explanation of the drawing]

Fig. 1 is a schematic explanatory diagram of the reach spreading method using a conventional backpack-powered spreader, Fig. 2 is an explanatory diagram of a backpack-powered spreader equipped with the proposed product, Fig. 3 is a front view of the proposed product, and Fig. 4 The figure is an enlarged sectional view of the main part of the L portion in FIG. 3, and FIG. 5 is a sectional view taken along the line V-V in FIG. 3. 12...Accordion pipe, 14...Multi-mouth hose jet, 1
6... Reach sink head, 20... Telescopic guard, 2
1, 22...Blowout fixing piece, k...Hose steadying ring, _r1 , _r2 , _r3 , _r4 ...Connecting rod, u...Pin,
i ₁ , i ₂ ...Blowout hole, S...Support, V...Collision piece,
15...core tube.

Claims (1)

[Scope of utility model registration request] It is connected to the front of the bellows pipe 12, and has an ejection hole i ₁ on the bottom surface.
In a dispersion device in which a long dispersion part in which i ₂ is parallel and perforated is installed and suspended above a telescopically extensible support S that can be supported via a hanging tool,
The elongated spraying section is formed of a multi-nosed hose nozzle 14 with collision pieces V erected near the nozzles i ₁ and i ₂ , and a reaching sink nozzle 16 attached to the front end of the hose through a core pipe 15 . , the front end of the reaching sink jet head 16 is shaped and held in an elliptical shape, while the support body S has an appropriate number of connecting rods installed along the multi-port hose jet head 14.
The jet head fixing pieces 21 and 2 are composed of r ₁ to _{r 4} and are hung on the front and rear ends of these connecting rods r ₁ to _{r 4} , respectively.
2 and the telescopic guard 20 are respectively fixed to the reaching jet head 16, the core pipe 15 and the bellows pipe 12, and the connecting rods _r1 to _r4 are held in an extended state by pins U, and the pins are A sink multi-mouth dispersion device for granules in which a hose steadying ring K is attached to connecting rods r ₁ to r ₄ at u.