JPS5827821Y2 - agricultural spray equipment - Google Patents

Description

[Detailed description of the invention] The present invention is an agricultural spraying device, specifically, a pressurized liquid pumped from the discharge port of a water pump and compressed air pumped from the discharge port of an air pump are supplied to a plurality of spray nozzles. The present invention relates to an agricultural spraying device in which the pressurized liquid ejected from these nozzles is atomized by the compressed air.

Generally, in this type of spray device, a liquid feed pipe communicating with the discharge port of a water pump and a blower tube communicating with the discharge port of an air pump are separately molded and arranged in parallel. A plurality of spray nozzles are installed in a row at regular intervals in the length direction, and an air guide pipe is connected between these spray nozzles and the blast pipe to direct compressed air from the air pump to the spray nozzle. The pressurized liquid ejected from each spray nozzle is atomized by supplying the pressurized liquid to the spray nozzle.

However, according to this conventional structure, not only the liquid sending pipe and the blowing pipe must be shaped separately, but also a plurality of air guide pipes and a large number of joint members for connecting these air guide pipes are required. Therefore, the structure is very complicated and a large number of parts are required, resulting in an overall high cost.

In addition, because the structure is complex, it is difficult to assemble and disassemble, requiring a lot of time and effort.Furthermore, other objects may get caught in the plurality of air guide pipes installed between the blower pipe and the spray nozzle, causing damage to the air guide pipes. They often damaged wind pipes and spray nozzles.

The present invention was devised in view of the above points, and its objectives are to have a simple structure, reduce the number of parts, provide it at low cost, and be able to assemble and disassemble it easily. An object of the present invention is to provide an agricultural spraying device that can reduce the risk of damage to the agricultural equipment.

Therefore, the present invention integrally molds a hollow bulging strip along the length of the blast tube on one side wall of the blast tube that communicates with the discharge port of the air pump. The side wall is provided with a liquid passage hole that communicates with the inside of the bulging strip and a ventilation hole that opens into the inside of the blowing tube, and the side wall is provided with a set of a liquid passage hole that communicates with the inside of the blow tube and is spaced at a predetermined interval in the length direction. The present invention is characterized in that a plurality of spray nozzles are provided at different intervals, and a spray nozzle having a liquid passage communicating with the liquid passage hole and an air passage communicating with the ventilation hole is directly attached to one side wall of the blast pipe.

Embodiments of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a machine frame supported by the lower link of the truck printer and the dou printer, and this machine frame 1 is equipped with a chemical tank 2, an air pump 3, a water pump 4, and a tank water pump (not shown). ing.

Reference numeral 5 denotes a long air pipe which is pivotally supported on the machine frame 1, and can be raised and lowered using the pivot point as a fulcrum. The branch side base is communicated with the discharge port of the air pump 3 via the connecting hose 6.

However, inside one side wall 5a of the air pipe 5, the air pipe 5
A hollow bulging strip 51 extending along the length direction is integrally formed, both lengthwise ends of the bulging strip 51 are closed, and one end thereof is connected to a hose connecting to the discharge port of the water pump 4. (not shown), and the bulging strip 51 is used as a liquid feeding pipe.

The side wall 5a of the blower tube 5 has a set of liquid passage holes 52 communicating with the inside of the bulging strip 51 and ventilation holes 53 opening into the inside of the blower tube 5, which are arranged in the length direction according to the purpose. A plurality of sets are provided at predetermined intervals, a thread is formed on the inner periphery of the liquid passage hole 52, and the spray nozzle 7 is attached to this threaded portion by screwing.

Note that a plurality of the ventilation holes 53 may be provided for each liquid passage hole 52 as shown in the drawings.

The spray nozzle 7 consists of a nozzle base 71 that is screwed into a thread on the inner periphery of the liquid passage hole 52, a liquid discharge rod 72 and a nozzle tip 73 that are attached to the base 71, and the nozzle base 71 is shaped like a cylinder with a bottom. The bottom wall 71a is provided with a mounting portion 74 projecting outward in the axial direction from the center and a plurality of through holes 75, 75, and the outer periphery of the mounting portion 74 is provided with the through holes. A screw hole 74 is provided in the center of the mounting portion 74 to fit the screw on the inner circumference of the liquid hole 52.
By providing a threaded hole 74a and screwing the liquid discharge rod 72 into this screw hole 74a, a liquid passage 76 that communicates with the liquid passage hole 52 and a through hole 75, 75 that communicate with the ventilation hole 53 are formed. This forms an air passage 77 that communicates with the air passage.

Note that the liquid discharge rod 72 may be formed integrally with the nozzle base 71.

Further, a screw 78 is provided on the outer periphery of the opening end of the nozzle base 71, and a cap nut 79 is screwed onto the screw 78, so that the nozzle tip 73 is attached to the opening end of the nozzle base 71, and the liquid exits from the liquid passage 76. The pressurized liquid and the compressed air coming out of the air passage 77 are mixed in the nozzle chip 73 and atomized.

This nozzle tip 73 has a disk-shaped flange portion 73 a
and a swollen portion 73b that protrudes outward in the axial direction from the center of the flange portion 73H. Spray lower 3
It is set as C.

Note that the nozzle chip 73 may be attached to the nozzle base 71 without using the cap nut 79.

Also, in the figure, 8 is a flat packing, and 9 is an O-ring.

Thus, the spray nozzle 7 formed as described above is constructed by screwing the mounting portion 74 of the nozzle base 71 into the liquid passage hole 52 of the blower tube 5, and connecting the inside of the bulging strip 51 with the liquid passage 76 and the inside of the blower tube 5 with the air passage. 77, respectively.

Then, the pressurized liquid pumped into the bulging strip 51 is transferred to the liquid passage hole 5.
2 and the liquid passage 76 into the nozzle chip 73, and the compressed air that was force-fed into the blast pipe 5 is jetted into the nozzle chip 73 through the ventilation hole 53, the through hole 75, and the air passage 77, and this The pressurized liquid and compressed air are mixed in the nozzle tip 73 and atomized into fine particles.

The liquid pressure and air pressure during this spraying are both 0.5 kg/
The pressure is as low as Cm2.

Thus, according to the present invention, the spray nozzle 7 can be attached by an extremely simple operation of just screwing the spray nozzle 7 into place.
Pressurized liquid and compressed air can be supplied inside.

In the above embodiment, the nozzle base 71 of the spray nozzle 7
In the above description, a mounting part 74 is provided protruding from the top of the nozzle base 71, and the mounting part 74 is attached to the liquid passage hole 52 of the air pipe 5. The nozzle base is attached to the air pipe by drilling a through hole in the mounting seat, drilling a threaded hole in the air pipe 5, and inserting a bolt into the through hole and the threaded hole. It may be installed.

In addition, the blow pipe 5 may be formed of a cylinder other than a rectangular tube, and the bulging strip 51 may be provided on the outside of this side wall 5a instead of being provided inside the one side wall 5a of the blow pipe 5. .

In these cases, the packing 8 and the nozzle base 71
The shape of the part a of the bottom wall 71 may be changed as appropriate.

As described above, according to the present invention, the two
Since it can be formed with only one number of parts,
It has a very simple structure and can be provided at low cost.

Moreover, since the spray nozzle having a liquid passage and an air passage can be assembled with an extremely simple structure that is simply attached directly to one side wall of the blower pipe, it can be easily assembled and disassembled.

Furthermore, since the conventional air guide tube is not required, the risk of other objects being caught and damaged can be reduced accordingly.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a schematic diagram;
FIG. 2 is a partially enlarged sectional view. 3...Air pump, 4...Water pump, 5...Blow pipe, 5a...Side wall, 51...Bulging strip, 52...Liquid hole,
53... Ventilation hole, 7... Spray nozzle,
76...Liquid passage, 77...Air passage.

Claims (1)

[Scope of utility model registration request] A hollow bulge extending along the length of the air pipe is integrally formed on one side wall of the air pipe that communicates with the outlet of the air pump, and the bulge is connected to the outlet of the water pump. The side wall is provided with a plurality of sets of liquid passage holes communicating with the inside of the bulging strip and ventilation holes opening into the inside of the blowing pipe at predetermined intervals in the length direction. An agricultural spraying device further comprising: a spray nozzle having a liquid passage communicating with the liquid passage and an air passage communicating with the ventilation hole, which is directly attached to one side wall of the blast pipe.