JPH04925Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a spraying hose for a power spreader used to spread powder on farmland.

[Conventional technology]

In such a spraying hose, discharge ports are arranged at appropriate intervals in the longitudinal direction, and a collision plate is provided protruding from the inner peripheral side of the spraying hose, with which the powder collides and is directed toward the discharge ports. FIGS. 3 and 4 show a conventional manner of coupling the collision plate and the spraying hose. A discharge port b is formed in the spraying hose a, and a collision plate c is provided to protrude from the inner circumferential side of the spraying hose a. In FIG. 3, a rivet d passes through the spraying hose a and the collision plate c and is caulked at the tip, thereby fixing the collision plate c to the spraying hose a. In addition, in FIG. 4, the collision plate e has a hole f in the center that communicates with the discharge port b, and a rivet part g protruding from the periphery of the collision plate e passes through the spray hose a and the backing plate h. and is caulked at its tip, thereby fixing the collision plate e to the spraying hose a.

[The problem that the idea aims to solve]

Powder to be sprayed with a spray hose includes dust, DL powder, fine granules, granules, fertilizers, seeds, etc.
There are various types, and the optimal values for the protrusion amount and angle of the collision plate differ depending on the type of powder or granular material. In the conventional spray hose, the collision plates c and e are the spray hose a.
Since the hose is fixed by caulking and difficult to replace, it has been difficult to use a common spray hose for spraying various types of powder and granules.

This invention provides a spraying hose for a power spreader, in which the impact plate can be replaced with a desired one, and various types of powder can be sprayed using a single spraying hose.

[Means to solve the problem]

That is, this invention provides a spraying hose for a power spreader, which has discharge ports arranged at appropriate intervals in the longitudinal direction, and a collision plate protruding from the inner circumferential side that causes powder to collide with the powder and direct it toward the discharge ports. A fitting member is formed on the collision plate to be detachably attached to a socket formed in each discharge port and to be fitted in a height-adjustable manner within the socket, and a lower end of the fitting member is larger than the fitting member. The present invention proposes a spraying hose for a power spreader, which comprises a cylindrical member with a diameter of about 100 mm, and has a gap for suctioning secondary air between the outer periphery of the lower end of the fitting member and the inner periphery of the upper end of the cylindrical member.

[Effect]

In the above configuration, a collision plate is formed on the fitting member, a socket is arranged on the outer peripheral side of the spray hose at each discharge port, and the fitting member is removably fitted and fixed to the socket. .

〔Example〕

This invention will be explained below with reference to an embodiment of the invention shown in FIGS. 1 and 2.

In FIG. 1, discharge ports 12 are bored in the wall surface of the spray hose 10 at appropriate intervals in the longitudinal direction of the spray hose 10, and a cylindrical socket 26 is provided at each discharge port 12 on the outer circumferential side of the spray hose 10. There is. The receptacle 26 is fixed to the outer periphery of the spray hose 10 at its projecting edge 28 and has an annular groove 30 with a semicircular cross section at two locations on the inner periphery of the cylindrical portion. The fitting member 32 includes a collision plate 34 that protrudes inward from the inner circumferential surface of the spray hose 10 and a cylindrical portion 36 that fits into the inner circumference of the socket 26 . Cylinder part 36
An annular protrusion 38 having a semicircular cross section that fits into the annular groove 30 is formed on the outer periphery of the annular groove 30 . Fitting member 32
is slidable within the socket 26, and the annular groove 30 and the annular protrusion 38 function as positioning and fixing means for positioning the socket 26 and the fitting member 32 relative to each other and fixing them to each other.

A cylindrical member 44 having a larger diameter than the fitting member 32 is coupled to the lower end of the fitting member 32, and a gap between the outer periphery of the lower end of the fitting member 32 and the inner periphery of the upper end of the cylindrical member 44 when distributing powder and granules. Secondary air is sucked into the cylindrical member 44 from 46 by negative pressure, and the secondary air is released from the lower end of the cylindrical member 44 together with the powder.

In the above configuration, in FIG. 1, the annular protrusion 38 is fitted and fixed in the annular groove 30 closer to the spray hose 10, so the amount of protrusion of the collision plate 34 from the inner peripheral surface of the spray hose 10 is h. ₁ , but in FIG. 2, the annular protrusion 38 is fitted and fixed in the annular groove 30 farther from the spray hose 10, so the amount of protrusion of the collision plate 34 from the inner peripheral surface of the spray hose 10 is _h2 and small.

[Effect of idea]

As described above, since the fitting member in the spraying hose is replaceable, a fitting member having an optimal collision plate is selected depending on the powder or granular material to be sprayed, and is attached to the receptacle. Therefore, one spraying hose can be commonly used for spraying various types of powder and granules, and by forming a gap for secondary air suction, when spraying powder, this This has the effect of sucking outside air through the gap and transporting the powder with more air.

[Brief explanation of the drawing]

FIGS. 1 and 2 are cross-sectional views of an embodiment of this invention, and FIGS. 3 and 4 are views illustrating a conventional manner of coupling an impingement plate to a spray hose. In the figure, 10...dispersion hose, 12...
...Discharge port, 26...Socket, 32...Fitting member,
34...It is a collision plate.

Claims (1)

[Scope of utility model registration request] In a spraying hose for a power spreader, in which discharge ports are arranged at appropriate intervals in the longitudinal direction, and a collision plate is protruded from the inner periphery to cause powder and granules to collide and be directed toward the discharge ports, each discharge port is provided with a collision plate. A fitting member is formed on the collision plate, and the fitting member is removably attached to the formed socket and is fitted in a height-adjustable manner within the socket, and a cylindrical member having a larger diameter than the fitting member is attached to the lower end of the fitting member. A spraying hose for a power spreader, comprising: a gap for suctioning secondary air between the outer circumference of the lower end of the fitting member and the inner circumference of the upper end of the cylindrical member.