Foot pump

Drought has caused thousands of hectares of crops in the central provinces withered. The type of bucket, reel, pump becomes impotent. At this moment, Nguyen Tat Hai, a farmer in Quy Hop, Nghe An, launched a large foot pedal water pump. Immediately, the machine sold like hot cakes.

In 1996, Mr. Hai retired from his army to his hometown (Dong Hop, Quy Hop and Nghe An communes). Central region of white sand, Lao wind plus intense sunshine such as pouring fire into the hot season, thirsty people, upland fields, cattle and buffaloes also lack water. Hai's wife and children work with 6 acres of rice fields along the stream but also "smooth" sweat to slap their backs. " The types of modern pumps that our farmers do not have money to buy, my hometown is still remote, the national electricity network has not yet arrived. The Chinese pumps are cheaper but the gas cost is cheaper. , farmers are familiar with the bucket. "- Mr. Hai said.

Lack of irrigation water, so some of his rice poles as well as household protection in Dong Hop commune stunted. Every year, his family only collected 2.7 quintals of rice. If you lose your crop, you can't avoid hunger. Loving his wife and children, he thought about making a water pump that didn't need electricity, nor did it cost gasoline.

He remembers the art of the invention of the Algerian invention of Asule (the former Soviet Union) and the book of Taylor's Labor Science he bought from his military days. He eagerly read books, then studied the problems of water, power, machine structure, materials, comfort, machine weight . to make a complete water pump.

He said: " I refer to Bangladesh's foot pump water pump introduced by the IRRI International Rice Institute in Vietnam. However, this machine consumes energy. Big and healthy people can operate the pump, but Small people like me can only stand and watch, the pumping capacity of this machine is only limited to 6m3 / hour, not enough to meet the production water supply requirements in mountainous areas ".

Analyzing, comparing, improving, at the end of 2000, Mr. Hai's foot pedal pump was born with an ideal water supply capacity of 15 m3 / hour. However, it was bulky, heavy, just suitable for the terrain of his home field. Looking forward to having a pump suitable for all types of terrain, everyone can use it, easy to transport, convenient, he studied further.

First, he thought about reforming the leverage system. Doing so, he finally discovered how to put the two dual lever systems into the pump structure to reduce the impact on the machine. " Just a force of more than 8 kg is a machine that can work. A high school kid can help his parents slap the water " - he explained.

Reducing labor, he thought of designing a seat so that a student could both study and pump water. He revealed: " At the top of the pile hanging pulley, I attached a wooden rack to hold the armrest for the occupants of the water pump while making a book for students to review while operating the machine ."

Repair, renovation, take nearly four years, foot pedal water pump designed by Mr. Hai also completed. The means to produce the pump is only encapsulated in a bag (8.5 kg), can be transported to any terrain, the capacity of 8 people slaps a bucket and twice the capacity of 370 kW of China, which cost only 300,000 VND / machine.

There was no need to advertise, immediately his water pump was known to the Dong Hop people. They were the first customers to order his water pump. So he always gave his water pump the name " Dong Hop water pump ".

He affirmed firmly: " Dong Hop water pump can be widely available to rice growers in mountainous and hilly areas like my hometown. I am trying to replace this pump. water pumps produced by Bangladesh ".