JPH0545137Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a drain hose for a fertilizer applicator that applies highly viscous fertilizer such as paste fertilizer by pumping it.

(b) Prior Art Conventionally, in a fertilizer application machine that applies fertilizer by forcefully pumping liquid fertilizer in a fertilizer tank to a fertilizer application pipe via a hose, the main body of the drain pipe is made of a hard pipe, and the base and tip of the pipe are A device in which a part of the side bending portion is configured with a bellows so as to be in a stored state has already been proposed in Japanese Utility Model Publication No. 53-20414.

(c) Problems to be solved by the invention The above-mentioned known fertilizer application machine had a fertilizer tank installed at a relatively high place on the machine body, and then a fertilizer application pipe was installed at a low position near the ground via a hose and a pump. There is a limit to the height of the machine, and the fertilizer tank cannot be installed at a high position.In the end, it is not possible to create a sufficient height difference between the fertilizer tank and the fertilizer pipe, and as a result, it is difficult to install high-viscosity fertilizer. It was difficult and took a long time to extract the air mixed into the fertilizer transport path to the fertilizer tank.

In addition, during cleaning, it is necessary to flush water many times to wash off the fertilizer adhering to the pipes such as suction hoses and sub-tank hoses, which requires a lot of time and water.

Further, although the drain pipe in the known fertilizer application machine could be locked in an upward position or bent to a discharge position, it could not be used as a manual pump.

(d) Means for solving the problem The present invention is a fertilizer applicator that pumps liquid fertilizer in a fertilizer tank attached to the machine body to a fertilizer pipe via a pump, a hose, etc. The main body of the drain hose is composed of a bellows hose, and a grip is connected to the tip of the hose, and a cap that can be sealed is removably attached to the end of the grip to configure the drain hose as a manual pump. If the drain hose is closed with a lid and expanded and contracted, the air mixed in the fertilizer can be quickly discharged at the start of work, etc. When cleaning, the drain hose can be expanded and contracted while water is injected from the fertilizer tank. The above-mentioned problem was solved by making it possible to easily wash away highly viscous fertilizer adhering to the inside of the fertilizer tank and hose.

(e) Action When liquid fertilizer is put into the fertilizer tank and the pump is driven, the fertilizer is sucked into the pump from the suction hose, and the pressed out fertilizer is applied from the fertilizer pipe through the hose.

At the start of work, when the drain hose attached to the sub-tank of the pump is capped at the end and pushed and pulled by the grip, the liquid fertilizer is agitated and the air mixed in is separated, and the air provided at the top of the sub-tank is It can be discharged from the extraction valve.

Furthermore, when work is finished, water can be poured into the fertilizer tank and the drain hose can be pushed and pulled in the same manner as described above, causing the water to flow back and forth, thereby washing away fertilizer that has adhered to the inner surface of the fertilizer tank, the inner surface of the suction hose, the inner surface of the pump, the inner surface of the hose, etc.

(F) Example An example of the fertilizing rice transplanter of the present invention shown in the drawings will be explained. 1 is a main frame with an engine 2 mounted in the front and a driver's seat 3 in the rear. A fertilizer tank 6, which is equipped with an attachment device 5 that can be raised and lowered, is provided on both sides of the engine 2.
Rubber hoses 7, 7 connected to the bottom of the main frame 1 are connected by a joint 8, and a pump 10 consisting of a multi-shaft screw pump (same as the one in Japanese Patent Application Laid-Open No. 61-249307) having a sub-tank 9 is connected to the bottom of the main frame 1. A plurality of synthetic resin hoses 13 are attached to the side, and the inlet is connected to the joint 8 by a suction hose 11, and each outlet has an indicator 12 with a switching valve 14 in the middle. ... is connected to the fertilization pipe 17 attached to the float 16 on the side of the planting rod 15.

A drain hose 1 is provided at the bottom of the joint 8 and the sub-tank 9 of the pump 10, respectively.
The bases of the drain hoses 18 and 19 are connected, and the main body 20 of these drain hoses 18 and 19 is made up of a bellows hose that can be expanded and contracted, and a grip portion 21 is continuously provided on the tip side.
A cap 22 is screwed into the opening so as to be watertight.

23 is a switching valve 14 of the indicator 12;
and a return hose connecting the sub-tank 9,
When reducing the number of fertilization rows along ridges, etc., use switching valve 1.
4, the pumped paste fertilizer is not sent to the fertilization pipe but returns to the sub tank 9.

Further, an air release valve 27 is attached to the upper part of the sub-tank 9 as shown in FIGS. 5 and 6.
This air bleed valve 27 has a valve seat 2 made of a nut.
8 and a valve 31 which is biased by a spring 29 and has a handle 30.

Further, the fertilizer tanks 6, 6 have stays 3 projecting laterally from side steps 32, 32 leading from the step of the driving section to the front part, as shown in FIGS. 7 and 8.
3 and 34, but the front stay 33
A pair of left and right plates 35, 35 stand up in a bifurcated manner at intervals from the outer edge of the mounting plate 3, which has two holes each on the upper and lower sides, and which protrudes from the front surface of the fertilizer tank 6.
6 is placed between the plates 35, 35, and cushioning materials 37, 37 and springs 38, 38 are interposed on both sides thereof, and bolts 39, 39 are inserted into the holes of these and the plates 35, 35 to form a double nut. 40, 40, and a mounting plate 41 protruding from the rear of the fertilizer tank 6 rises from the stay 34 and faces between the plates 42, 42 having a pair of holes at the top and bottom, and a buffer material 37. ,37
are inserted, bolts 43, 43 are inserted, and they are tightened with double nuts 45, 45. Therefore, if the engine 2 vibrates or the aircraft shakes during operation, the fertilizer tanks 6, 6 will not move from the rear. It swings from side to side around the center, which causes the injected paste-like fertilizer to swing, which facilitates the outflow of the fertilizer from the fertilizer tank 6 and, if the viscosity of the fertilizer is high, reduces the viscosity and improves fluidity. Can be done. At that time, the discharge port 6a of the fertilizer tank 6 also shakes horizontally,
The discharge port 6a is provided near the rear where the amount of displacement is small, and rubber hoses 7, 7 connected thereto.
It deforms moderately, so it will not be damaged.

In the above-mentioned fertilizing rice transplanter, the fertilizer tanks 6, 6
When paste fertilizer is injected into the machine, the handle 30 is directed toward the rear, and the machine is moved forward while operating the planting device 5 and the pump 10 driven by the transmission device in the main frame 1, the planting rods 15... The pine seedlings in the seedling platform 25 that reciprocates in the direction are scraped and planted in the cleared field, and the pump 10 transfers the paste fertilizer in the fertilizer tanks 6, 6 to the rubber hoses 7, 7, joint 8, and suction hose 11. The paste-like fertilizer sucked in and discharged through the sub-tank 9 passes through the hose 13 and the indicator 12, and is fertilized into the mud from the tip of the fertilization pipe 17.

When a paste fertilizer with a low viscosity is injected at the start of work, the end of the return hose 23 is pulled out or the handle 30 of the air release valve 27 is injected.
You can bleed air by simply pressing .

However, when pasty fertilizer with high viscosity is injected, it takes a long time to remove the air by simply pulling out the return hose 23 or pushing the handle 30 as described above, so it is necessary to pull out the return hose 23 or press the handle 30. Before pressing 30, press the lever 14a of the switching valve 14.
is rotated upward to communicate the indicator 12 and the sub-tank 9, and in this state, remove the drain hose 19 attached to the sub-tank 9 from the locking fitting 26,
When the cap 22 is screwed together and the grip 21 is pushed and pulled several times, the bellows hose that makes up the main body 20 expands and contracts, and its reciprocating pump action spreads the paste inside each hose and the sub-tank 9 that communicate with it. The fertilizer is stirred and the air mixed in is separated, so if the return hose 23 is removed from the sub-tank 9 or the handle 30 is pressed, the air can be quickly separated and discharged.

When cleaning is completed, water is injected into the fertilizer tanks 6, 6 and stored in the fertilizer tanks 6, 6, rubber hoses 7, 7, joint 8, suction hose 11, sub-tank 9, etc., and the drain hose is 18 from its locking fitting 26, and when it is pushed and pulled with the grip part 21, the injected water is stirred by the reciprocating pump action, and the paste-like fertilizer adhering to the inner surface of each part is washed away. By discharging water with the pump 10, cleaning can be performed with less water and in a shorter time.

Furthermore, when the switching valve 14 side of the return hose 23 is removed and the lever 14a of the switching valve 14 is rotated downward, the drain port 14b and the hose 13 leading to the fertilization pipe 17 are communicated with each other.
When the end of a normal rubber hose or vinyl hose connected to a water faucet is pushed in and water is passed in b, the injected water cleans the switching valve 14, the hose 13 at the rear thereof, and the fertilization pipe 17.

(g) Effects of the invention The invention supplies liquid fertilizer in the fertilizer tank 6 attached to the aircraft body to the fertilizer pipe 1 through the pump 10 and hose.
7, the fertilizer tank 6
Alternatively, the main bodies 20 of the drain hoses 18 and 19 provided in the fertilizer route are configured with bellows hoses, and a gripping portion 21 is connected to the tip thereof, and a cap 22 that can be sealed is detachably attached to the end of the gripping portion 21. Since it is configured as a manual pump when installed, when starting work, the pumping action can be obtained by simply holding the grip part 21 of the drain hose with the cap 22 installed and pushing and pulling it, even if the viscosity of liquid fertilizer is high. As a result, the injected liquid fertilizer can be stirred and the air mixed in can be easily and quickly discharged, allowing for accurate fertilization.

Furthermore, when cleaning is completed, water is injected and left in the fertilizer tank 6 and each hose, etc., and then the inside of the fertilizer tank 6 and the inside of the fertilizer tank 6 can be cleaned by simply holding the grip part 21 of the drain hose and pushing and pulling. The water in the flow path of the liquid fertilizer is agitated and adheres to their inner surfaces, and it would take a long time and a large amount of water to wash off the liquid fertilizer by simply flowing the washing water. This can be done with water.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a side view of the main parts, Figure 2 is a plan view of the same as above, Figure 3 is a front view of the drain hose, Figure 4 is a side view of the fertilizing rice transplanter, Figure 5 is a side view of the pump, and Figure 6 is a side view of the pump. 7 is a plan view of the fertilizer tank, FIG. 8 is a side view of the same, and FIG. 9 is a sectional view of the switching valve. 6...Fertilizer tank, 7...Rubber hose, 8...
Joint, 9...Sub tank, 10...Pump, 11...Suction hose, 23...Return hose.

Claims (1)

[Scope of utility model registration request] In a fertilizer applicator that pumps liquid fertilizer in a fertilizer tank 6 attached to a machine body to a fertilizer application pipe 17 via a pump 10 and a hose, etc., the main body 20 of the drain hoses 18, 19 provided in the fertilizer tank 6 or the fertilizer route.
The fertilization method is characterized in that it is constructed of a bellows hose, and a gripping part 21 is connected to the tip thereof, and a sealable cap 22 is removably attached to the end of the gripping part 21 to form a manual pump. Drain hose on the machine.