CN2064831U - Elastic soft piston hand water pump - Google Patents

Abstract

The utility model discloses a hand-operated water pump. A hand-operated piston type water pump has the disadvantages that large friction is generated between the piston and a cylinder barrel, the operation is exertive, and only a half (single) stroke in the reciprocating stroke performs the work of pumping the water; besides, the other half stroke performs the idle running; therefore, the efficiency is low; because of the existence of the leakage, the lift height of the pumping of the water is low, and the pressure is not generated during the process of pumping the water. The utility model is characterized in that the interspace of the two end surfaces of a middle casing and the interspace of the end surfaces of two end casings are respectively fixed and sealed with an elastic curved surface type soft piston; an operating lever is in the fixed and hermetic connection with the two soft pistons, and the connection between a water inlet pipe and the two end casings and the connection between a water outlet pipe and the two end casings are respectively provided with a flexible water intake valve and a flexible discharging valve. The utility model is suitable for is suitable for pumping the water for the countryside.

Description

Elastic soft piston hand water pump

The utility model relates to the shaking type suction pump, particularly has the stirrup pump of the soft piston of elasticity.

The widely used hand bucket pump in present rural area is because of the friction between piston motion and cylinder barrel is big, so the effort that operates; The piston of this structure has only half (list) stroke work done to draw water in reciprocating stroke, and second half is an idle stroke, thereby efficient is low; So just can draw water after need manually adding water before drawing water owing to exist to leak, and the water of smoking do not have pressure, and lift is low.

The purpose of this utility model is design a kind of rapid operation, the efficient of drawing water height, can overcomes leakage, and lift height, water outlet have the stirrup pump of pressure.

Accompanying drawing is the complete section plan view, and 1 is intake pipe among the figure, and 2 is waste pipe, and 3,5 is the terminal shell of symmetry, and 4 is middle casing, and 6,7 is the soft piston of rubber, and 8 is operating handle, and 9,11 is inlet valve, and 10,12 is drain valve.

The utility model comprises the water inlet pipe and water outlet pipe 1,2 that is connected with terminal shell 3,5 respectively, it is characterized in that between middle casing 4 both ends of the surface and terminal shell 3,5 end faces the respectively soft piston 6 of fastening airtight installation one elastic surface type, 7, control stick 8 and soft piston 6,7 fastening airtight connections move back and forth two soft piston synchronous; Be equiped with respectively a flexibility (such as rubber) water intaking valve 9,11 at water inlet pipe 1 with terminal shell 3,5 places of being connected, be equiped with respectively a flexibility (such as rubber) draining valve 10,12 at drainpipe 2 with terminal shell 3,5 places of being connected. The soft piston 6 of elastic surface type, 7 can be a bowl type, dome-type, parabolic shape, or other curved face type, and is available Rubber or other elastomeric material are made.

Adopt the utility model, owing to do not have the friction between piston and cylinder barrel, thereby rapid operation is light; Soft reciprocating motion of the pistons can both draw water, so the efficient height; Adopt airtight design, do not have to leak, the pumping lift height, and water outlet has pressure, can directly water.Because structural design is simple, so low cost of manufacture.

Embodiment: with reference to Figure of description, the soft piston 6,7 of elastic surface of respectively fastening installation one same size between middle casing 4 both ends of the surface and terminal shell 3,5 conjunction planes, the operating handle 8 fastening airtight connection of two soft pistons therewith; Intake pipe 1 is connected with terminal shell 3,5 respectively, and is equiped with an inlet valve 9.11 respectively on the terminal shell of connection place; Waste pipe 2 also is connected with terminal shell 3,5 respectively, and is equiped with a drain valve 10,12 on the waste pipe of connection place, so just constitutes to have the soft piston shaking type of elastic surface suction pump.During work, upwards promote operating handle 8, the soft piston 6 of elastic surface, 7 curved surface raises up, form certain vacuum between then soft piston 6 and the terminal shell 3, drain valve 10 cuts out, this moment, water entered the space of soft piston 6 and terminal shell 3 formations by inlet valve 9 under the external atmosphere pressure effect, simultaneously soft piston 7 with its with terminal shell 5 between air by drain valve 12 discharges, inlet valve 11 is closed, when downward promotion operating handle 8, soft piston 6,7 curved surface is to lower convexity, then inlet valve 9 is closed under hydraulic pressure, the water of filling with between soft piston 6 and the terminal shell 3 is discharged by drain valve 10, produce certain vacuum (negative pressure) simultaneously between soft piston 7 and the terminal shell 5, drain valve 12 cuts out, this moment, water entered the confined space of soft piston 7 and terminal shell 5 formations by inlet valve 11 under the atmospheric pressure effect, when upwards promoting operating handle 8 once more, then inlet valve 11 is closed, the water of filling with between soft piston 7 and the terminal shell 5 is discharged by drain valve 12, circulation can realize continuously drawing water and so forth.

Claims (3)

1, a kind of stirrup pump, comprise the intake pipe and the outlet pipe that are connected with two terminal shells respectively, it is characterized in that the soft piston of the fastening airtight installation one elastic surface type of difference between middle casing both ends of the surface and two ends casing end face, operating handle is two fastening airtight connections of the soft piston of elastic surface type therewith; Intake pipe be equiped with a flexible inlet valve respectively outside two terminal shells are connected, be equiped with a flexible water drainage valve at waste pipe respectively with two terminal shell places of being connected.

2, by the described stirrup pump of claim 1, it is characterized in that the soft piston of elastic surface type can make a bowl type, hemisphere type, parabolic shape.

3,, it is characterized in that the soft piston of elastic surface type made by rubber by claim 1,2 described stirrup pumps.

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