JPS6330516Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spray nozzle device for a speed sprayer.

In general, this type of nozzle device requires precision in manufacturing to maintain spray performance, and the manufacturing cost is high.
Due to the complex structure, many man-hours were required for assembly, and therefore a great deal of labor and time was required for disassembly, repair and inspection, etc.

In order to solve this problem, the present invention divides the nozzle device into multiple parts to improve spray performance, makes assembly and disassembly easier, makes it suitable for mass production, and makes repair and inspection easier. An object of the present invention is to provide a spraying nozzle device for a speed sprayer. The configuration of the present invention will be explained below according to the embodiments shown in the drawings.

1 and 2 show the prior art, and FIG. 1 shows the rear part of a general-purpose speed sprayer 1,
An axial blower 3 is installed adjacent to the chemical solution tank 2, and a spray nozzle 4, baffle plates 8, 8', and a spray pipe 6 are installed between the two.
etc. FIG. 2 shows a - cross-sectional view of FIG. 1, and shows the arrangement of the spray nozzles 4 and the baffle plate 8 in relation to the discharge ports. In order for the nozzle 4 and the baffle plate 8 to integrally communicate and rotate, a driving device was provided behind the wind barrel of the blower 3 (not shown).
Further, the air guide plate 16 provided at the lower part of the discharge port is adjusted and fixed separately.

In contrast, the embodiments according to the present invention are shown in FIGS. 3 to 6.
FIG. 3 is a perspective view showing the main parts of the nozzle device.

The nozzle device is divided into three parts, centering on the middle part A, with the left side B and the right side C. That is, base liquid pipes 10a, 10b, 10 that send the liquid from the chemical liquid tank to these three sections.
A plurality of spray pipes 5 and 6 are provided in the base liquid pipes and protrude laterally into the discharge ports. The spray tubes 5 and 6 are constructed by liquid-tightly screwing together an outer tube 5 and an inner tube 6, with the inner tube 6 being fixed to the base liquid tube 10 and allowing liquid to flow through the inner holes 5' and 6'.

Note that the amount of rotation of the inner and outer tubes does not exceed 1/2, so they will not come off.

The outer tube 5 of the spray tube has a nozzle 4 fixed to its tip. Therefore, the nozzle can rotate together with the outer tube 5.

Further, air guide plates 8, 8' are fixed to the neck N of the outer tube 5 with screws 9 as shown in FIGS. 4 and 5, so that they can be adjusted in accordance with the spray direction of the nozzle.
Usually both are facing the same direction.

In this way, the nozzle device is divided into units, and this unit is constructed by fitting each of the base liquid pipes 10 into the stepped portion 12 provided near the outer periphery of the side wall 11 of the discharge port, and holding the base liquid pipes 10 with the holding metal fittings 13. It is fixed by pressing in several places. This means allows only the nozzle device to be installed and removed, regardless of the state of other parts of the speed sprayer body.

As shown in FIG. 3, a frame body 15 is connected to the lower portions of both sides of the discharge port, and a lower baffle plate 16 is rotatably supported by a shaft 17 on the frame. The frame 15 controls the wind direction on both sides of the discharge port, and expands and contracts the fan-shaped spray.

That is, the power (electric motor) stored in the space formed by the outer circumference of the blower wind body on the back side of the side wall 11 of the discharge port.
A drive shaft 18 passes through the side wall and projects into the discharge port, and the baffle plates 16 and 8 are interlocked with the drive shaft 18 via a swing arm 19. For this purpose, a portion of each of the baffle plates 8, 8', which are rotatable together with the nozzle, can be freely interlocked by links 21, 22 via a ball joint 20 or the like. Therefore, the rotation of the drive shaft 18 causes the swing arm 19 to swing, and the baffle plates are actuated all at once via the links 21 and 22, so that they can be operated in the same direction as the nozzle, resulting in a spray-type Can be changed. This rotation of the drive shaft 18 is performed by a DC motor 23 connected to an engine battery. That is, the worm 24 and the worm wheel 25 are connected to the motor 23.
The cylindrical body 26 is rotated by a rotating shaft (not shown) with a reed that rotates as one unit with the worm wheel 25.
Inside, this lead and the slider 28 are inserted into the elongated hole 2 of the cylinder body 26.
It reciprocates via 7. This reciprocating motion causes the link 29 to rotate the crank 30 and drive the drive shaft 18.
Rotate. These power units are provided in the outer circumferential space of the blower wind body. In this way, since the spray nozzle 4 and the air guide plate are linked together as one unit, it is possible to adjust the adjustment with one operation without requiring the effort of adjusting a large number of nozzles and air guide plates one by one. Moreover, the fact that the operation of the guide plate 16 at the lower part of the discharge port can be linked in this manner helps to reduce labor. The fact that the spray system is divided into a plurality of systems allows for one-sided spraying by switching between the respective systems, and in combination with the operation of the nozzle, extremely economical spraying that is suitable for the locational conditions of the field to be sprayed can be achieved. The structure in which the spray system is divided and the spray device is disposed within the discharge port facilitates handling such as attachment/detachment and compatibility. Therefore, the design is free to purchase appropriate means for the state in which the base pipe and link means are exposed. For example, the base liquid pipe can be arranged behind a step 12 provided on the periphery of the side wall of the discharge port so that the discharge wind is not blocked, and the base liquid pipe can be easily fixed with the presser 13 or the like by this step.

In addition, since attachment and detachment of the nozzle device is limited to the area around the open discharge port, the troublesome attachment and detachment work can be eliminated without affecting other parts of the aircraft.
Assembly, disassembly, maintenance, inspection, etc. become easier.

As described above, according to the configuration of the present invention, since the spray nozzle can be controlled in units of sections, it is possible not only to perform a wide variety of spray operations, but also to disassemble the spray nozzle.
The present invention has great practical value as it facilitates assembly, improves the spraying effect and spraying work, and facilitates manufacturing, maintenance and inspection.

[Brief explanation of the drawing]

Fig. 1 is a side view of a conventional speed sprayer atomizing device, Fig. 2 is a cross-sectional view of Fig. 1, Fig. 3 is a perspective view of a nozzle device showing an embodiment of the present invention, and Fig. 4 is a nozzle. A cross-sectional view of the main parts of the baffle plate and spray pipe,
FIG. 5 is a cross-sectional view of FIG. 4, and FIG. 6 is a spray liquid supply diagram of the base liquid pipe. A, B, C... Spray system division, 4... Nozzle, 5... Outer tube of the spray tube, 6... Inner tube of the spray tube,
10... Base liquid pipe, 8, 16... Air guide plate.

Claims (1)

[Scope of utility model registration request] A large number of nozzles for spraying chemical liquid, etc. in a radial direction from the generally fan-shaped discharge opening of the blower are installed in the base liquid pipe via a spray pipe, and this base liquid pipe is divided into an appropriate number of sections.
A baffle plate extending in substantially the same direction as the spraying direction of the nozzle is fixed to the spray pipe so as to be able to rotate integrally with the nozzle, and the fan-shaped spray is expanded or contracted at the bottom of both sides of the discharge port. A spray nozzle device for a speed sprayer, characterized in that a plate is provided, the air guide plate is connected by a link in each section for control, and the spray section is detachably attached to a discharge port in each spray section.