CN2054087U

CN2054087U - Hand pump

Info

Publication number: CN2054087U
Application number: CN 89210310
Authority: CN
Inventors: 杨兴绵; 杨兴武; 张树发
Original assignee: 杨兴绵
Priority date: 1989-04-06
Filing date: 1989-04-06
Publication date: 1990-03-07

Abstract

The utility model relates to a hand pump which improves confined water well heads used in towns and countries. The hand pump is composed of a pump body, a piston, a piston rod, a pressure lever, a suction pipe and a drain pipe. The hand pump is characterized in that the suction pipe positioned on the lower end of the pump body and the drain pipe positioned on the lateral face of the pump body are communicated with an A chamber of the pump body; an inverted valve is arranged on the suction pipe, and water can only be sucked but not be discharged; a drain valve is arranged on the drain pipe, and discharged water has certain pressure and lift head. Groundwater in 8 m depth can be sucked by the utility model and lifted to buildings in 6 m height, and pressure can reach from 2 to 3 atmospheric pressures. The hand pump is used by villagers for tap water and the irrigation of plastic greenhouse vegetable fields and farmland.

Description

Hand pump

The utility model relates to the hand pump of a kind of cities and towns, Rural water supply use, is the improvement of existing cities and towns, rural area being used pumped well.

China is a large agricultural country, nearly 1,000,000,000 peasants that living, and most no tap water facility in rural area, China cities and towns, the underground water that most waters are got adopts pumped well to supply water.The well head of this pumped well is to utilize to press the lever drives piston with the underground water sucking-off, rises on the ground.It is simple in structure, and is easy to use.But this pumped well can only rise to water on the ground, but can not make it to form certain pressure and lift, is used for the irrigation in rural area hot house and farmland.

The purpose of this utility model provides and a kind ofly can and make it to have certain pressure and lift with the underground water sucking-off, is applicable to the hand pump of water on field irrigation and the elevated tank.

Accompanying drawing is a structural representation of the present utility model.

Among the figure, 1 is the pump housing, and 2 is bearing, 3 for pressing lever, and 4 is piston rod, and 5 is piston, 6 is suction sleeve, and 7 is waste pipe, and 8 is the drain valve water outlet, 9 is the check valve water port, and 10 is pump seat, and 11 is offset plate, 12,13,14,15 valve seat, valve gap, valve body, the valve plates that are respectively drain valve, 16 is the drain valve offset plate, 17 is rubber cushion, 18 is conduit, and 19 is connecting rod.

Handlance by the pump housing 1, piston 5, piston rod 4, press lever 3 and suction hose 6 and drainpipe 7 and form. The pump housing 1 is cylindrical housing, and the lower end welding is provided with bearing 2 as the strong point that presses lever 3 with the pump seat 10 of center hole at outer rim place, the upper end of the pump housing 1, and the end and piston rod 4 upper ends that press lever 3 are hinged, and piston rod 4 lower ends connect piston 5. It is characterized in that the drainpipe 7 that is positioned at the suction hose 6 of the pump housing 1 lower end and is positioned at the pump housing 1 side all communicates with the A chamber of the pump housing 1, non-return valve is equipped with at its suction hose 6 places, draining valve is equipped with at its drainpipe 7 places, and the delivery port 8 of draining valve makes the glassware for drinking water of discharge that pressure and lift be arranged less than the limbers 9 of non-return valve. Non-return valve is the structure that adopts the offset plate 11 of mounting strap limbers 9 between pump seat 10 and the pump housing, water can only be sucked and can not discharge. Draining valve also has the check effect, water can only be discharged, air etc. can not suck, it is made up of valve seat 12, valve gap 13, valve body 14, valve plate 15 and draining valve offset plate 16, valve gap 13 is located by the shoulder of valve seat 12 after being inserted in valve seat 12, then with rubber cushion 17, valve plate 15, draining valve offset plate 16 is packed in the valve gap 13 successively, and is fixing with valve body 14. Delivery port 8 is arranged on the draining valve offset plate 16. For guaranteeing that piston rod moves both vertically up and down, be hinged with connecting rod 19 in piston rod 4 and the junction that presses lever 3,1 upper cover plate place is provided with the conduit 18 that is sleeved on outside the piston rod 4 at the pump housing.

Employing the utility model supplies water, and this hand pump is loaded on the underground water source capsule get final product.Press lever as long as move, make piston rod drive piston up-down.When moving on the piston, water enters the A chamber from check valve.When piston moved down, check valve was closed, and water is discharged by drain valve.Move in circles in proper order, can finish the water supply task.

The utility model is simple in structure, and is reasonable in design, and cost is low, easy to use.The glassware for drinking water that this hand pump is discharged has certain pressure and lift, can drink up 8 meters dark underground water, rise 6 meters high hug or to water on the elevated tank, pressure can reach 2--3 barometric pressure.The utility model is applicable to small towns, the civilian tap water in rural area or hot house field of vegetables, farmland irrigation water.

Claims

1, a kind of hand pump, by the pump housing 1, piston 5, piston rod 4, pressure lever 3 and suction sleeve 6 and waste pipe 7 are formed, the pump housing 1 is a cylindrical housings, the outer rim place is provided with bearing 2 as the strong point that presses lever 3 in the top, the end and piston rod 4 upper ends that press lever 3 are hinged, the lower end of piston rod 4 connects piston 5, it is characterized in that the waste pipe 7 that is positioned at the suction sleeve 6 of the pump housing 1 lower end and is positioned at the pump housing 1 side all communicates with the A chamber of the pump housing 1, check valve is equipped with at its suction sleeve 6 places, drain valve is equipped with at its waste pipe 7 places, and the water outlet 8 of drain valve makes the glassware for drinking water of discharge that pressure and lift be arranged less than the water port 9 of check valve.

2, hand pump according to claim 1 is characterized in that described check valve is the structure that adopts at the offset plate 11 of pump seat 10 and 1 mounting strap water port 9 of the pump housing.

3, hand pump according to claim 1, it is characterized in that described drain valve is made up of valve seat 12, valve gap 13, valve body 14, valve plate 15 and drain valve offset plate 16, valve gap 13 is inserted in the shoulder location of valve seat 12 backs by valve seat 12, then with rubber cushion 17, valve plate 15, drain valve offset plate 16 is packed in the valve gap 13 successively, and is fixing with valve body 14.

4, hand pump according to claim 1 is characterized in that the joint of piston rod 4 and pressure lever 3 is hinged with connecting rod 19, and 1 upper cover plate place is provided with the conduit 18 that is sleeved on outside the piston rod 4 at the pump housing, to guarantee piston rod 4 upper and lower vertical motions.