JPH0317613Y2 - - Google Patents

Description

[Detailed explanation of the invention] Conventionally, a fertilizer application machine that used a pump to forcefully send liquid fertilizer such as paste fertilizer to a fertilization pipe, if left unattended after use, the hose, pump, and fertilization pipe that lead from the fertilizer tank to the fertilization pipe The liquid fertilizer remaining inside the spill confirmation meter will harden and become unusable.

In order to prevent this from happening, cleaning was done by removing the fertilizer from the fertilizer tank, filling it with water, and driving the pump in this state, but the pump discharged only a small amount from the fertilizing pipe. Since the setting is such that the liquid fertilizer is slowly squeezed out, there is a drawback that it takes an extremely long time to drain out all the remaining fertilizer.

The purpose of the present invention is to improve the above-mentioned drawbacks, and the present invention is directed to a fertilizer applicator in which liquid fertilizer in a fertilizer tank is pumped into a fertilizing pipe by a pump. It is characterized in that the pipelines are connected by a bypass pipe, and a valve is interposed in the bypass pipe.

The embodiments shown in the drawings will be explained below.
Reference numeral 1 is a box-shaped body with a transmission inside, and the front part is equipped with an engine 2 and a transmission case 2a, and the rear part has a planting rod 3... and a seedling stand 4 that reciprocates from side to side. A fertilizer tank 6 is attached to the upper part by stays 5, 5, a float 7 is attached to the lower part, and a swing chain case 8 whose wheels are not shown is tilted up and down by a hydraulic cylinder. , 8 is mounted on a shaft at the rear.

Reference numeral 9 denotes a pump attached to the rear of the planting transmission case 10, whose suction port is connected to the discharge port 6a of the fertilizer tank 6 through a hose 11, and whose discharge port is attached to the float 7 through a hose 12. It is connected to a fertilizing pipe 13, and an outflow check meter 14 is interposed in the middle of the hose 12.

The portions of the hoses 11 and 12 close to the pump 9 are communicated by a bypass hose 15, and a lever 1 is connected to the middle portion of the bypass hose 15.
A valve 17 having a diameter of 6 is interposed.

The above-mentioned fertilizing rice transplanter, like the conventional one, scrapes the pine seedlings on the seedling stand 4 one by one with the planting rod 3 and plants them on the rice field, and the paste-like fertilizer in the fertilizer tank 6 is passed through the hose 11. is sucked into the pump 9,
The paste-like fertilizer discharged by the pump 9 into the hose 12 is sent under pressure to the fertilization pipe 13 via the outflow confirmation meter 14.
Fertilizer is applied to the plowed mud.

However, at the start of work, the valve 17 is closed by the lever 16 as shown in FIG.

When cleaning the fertilizer applicator after planting and fertilizing, remove the paste-like fertilizer remaining in the fertilizer tank 6, open the valve 17 with the lever 16 as shown in FIG. When the communicating pipe 18 protruding from the top is connected to a water faucet with a hose and the pump 9 is driven, the water squeezed out from the water supply flows into the fertilizer tank 6, and when it is full, the pressurized water flows into the fertilizer tank 6. On the other hand, hose 11, bypass hose 15, hose 12, outflow confirmation meter 14,
The water flows rapidly through the hose 12 and is discharged from the discharge port of the fertilizing pipe 13, thereby cleaning all parts other than the pump 9 very quickly, while the pump 9 sucks in the water pumped through the hose 11. By discharging, the inside of the pump 9 itself is cleaned,
At this time, the paste-like fertilizer adhering to the inner peripheral surfaces of the fertilizer tank 6 and the hose 11 is rapidly removed via the bypass hose 15 as described above, so the fertilizer concentration in the water sucked by the pump 9 rapidly decreases. , the pump 9 can be quickly cleaned, and the pump 9 can be cleaned quickly.
The cleaning water discharged from the bypass hose 15 joins the water from the bypass hose 15 and is rapidly discharged.

The above-mentioned cleaning device sometimes forgets to close the valve 17 after cleaning is completed, and to eliminate this, a cam rod 19 is provided protruding from the shaft of the pump 9 as shown by the dotted line.
A toggle spring 20 is attached to the lever 16, and stoppers 21 and 22 are provided to catch the lever 16 in the open and closed positions, and when cleaning parts other than the pump 9, the pump is stopped.
Next, when the pump 9 is driven by the chain 23, the cam rod 19 pushes down the lever to automatically shift it to the closed position, and when the pump 9 is finished cleaning, the pump 9 is simply stopped, which prevents the user from forgetting to close the valve 17. Therefore, even if paste fertilizer is put into the fertilizer tank 6 and work is started next time, the paste fertilizer will not be supplied to the fertilization pipe 13 through the bypass hose 15.

As described above, the present invention is a fertilizer applicator that uses a pump to forcefully feed liquid fertilizer in a fertilizer tank to a fertilizing pipe. Since a valve is installed in the valve, the operation of opening the valve and pressurizing tap water is extremely simple, and the flow path of liquid fertilizer can be quickly cleared by using the washing water that bypasses the pump that obstructs the flow of washing water using a bypass pipe. Can be washed.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
FIG. 1 is a partially cutaway side view of the fertilizing rice transplanter, FIGS. 2 and 3 are side views of the main parts, and FIG. 4 is a hose circuit diagram. 3... Planting rod, 6... Fertilizer tank, 9... Pump, 11, 12... Hose, 13... Fertilizer pipe, 1
5...Bypass hose, 17...Valve.

Claims (1)

[Scope of utility model registration request] In a fertilizer application machine that uses a pump to forcefully feed liquid fertilizer in a fertilizer tank to a fertilizer application pipe, a pipe line leading to an inlet port and a discharge port of the pump is connected by a bypass pipe, and a valve is interposed in the bypass pipe. A cleaning device for fertilizer application machines featuring: