CN2085427U

CN2085427U - Pedal water pump

Info

Publication number: CN2085427U
Application number: CN 90225072
Authority: CN
Inventors: 李国华
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-12-25
Filing date: 1990-12-25
Publication date: 1991-09-25

Abstract

The utility model which relates to a manpower water pumping device for lifting the water discloses a pedal water pump with delivery lift, mainly comprising sprocket wheels, chains, a pedal lever, a cylinder body, a leather cup, a water diversion chamber assembly and a one way valve. The pedal lever is trod to drive the leather cup to move, and the one way valve is caused to open and close to extract liquid. The utility model has the advantages of simple structure, easy manufacturing, long service life and light weight.

Description

Pedal water pump

The utility model relates to a kind of manpower pumping device who draws the extract body.

During the liquid of people under extracting ground level, general all by means of the strength of pump, and the manpower pumping device that uses of people is hand, monotubular structure at present, inefficiency, and shake for a long time, be a very arduous thing.The foot-operated water lifts that in Patent Office of the People's Republic of China's 89206121 patent documents, proposes, though overcome above-mentioned shortcoming, but because of cylinder body adopts plastic material, very easily distortion, the seal ring on the piston is single, working life is short, and belt transmission is adopted in the lifting traction, wearing and tearing are big, must often change, and brought great inconvenience to the user.

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and a kind of foot-operated lift pump is provided.

The utility model is achieved by the following scheme: the enamel of coating on the metal cylinder body; Replace belt pulley with the metal sprocket wheel; Two back-to-back leather cups are installed on the piston sheet, and the fixing termination of treadle bearing pin is a flexible structure.

It is long to the utlity model has simple in structure, easy processing, life-span, and advantage such as in light weight is particularly suitable for the use in vast rural area.

Below in conjunction with accompanying drawing the utility model is further specified:

Accompanying drawing 1 is the utility model plan view

Accompanying drawing 2 is the utility model side view.

See accompanying drawing 1,2, the utility model is by handrail (1), supporting rod (2), tow chain (4), sprocket wheel (5), sprocket shaft (6), bearing support (7), treadle (8), rocking arm (9), outlet pipe (10), support plate (11), screw rod (12), cushion pad (13), connecting rod (14), cylinder body (15), piston sheet (16), leather cup (17), loam cake (18), lower cover (19), stiffening plate (20), water-dividing chamber assembly (21), intake pipe (22) is formed.Water-dividing chamber assembly (21) is by water-dividing chamber (23), and one-way valve (A), (B), (C), (D) form.Handrail (1) is fixed on the strut (2), sprocket wheel (5) is installed in the supporting frame (7) by the sprocket shaft (6) that is fixed on the bearing support (7), supporting frame (7) is fixed on the middle part of strut (2), tow chain (4) is walked around sprocket wheel (5) and is separately fixed on two treadles (8), one end of treadle (8) is connected with rocking arm (9) bearing pin respectively, and the other end of rocking arm (9) also is fixed on the outlet pipe (10) by bearing pin, connecting rod (14) is connected with treadle (8) with the below of treadle (8) link position at tow chain (4) by bearing pin, be fixed with piston sheet (16) in the other end of connecting rod (14), piston sheet (16) clamping has two back-to-back leather cups (17), piston sheet (16) is inserted in being coated with the metal cylinder body (15) that is stamped enamel, on, lower cover (18), (19) by screw at cylinder body (15) two ends, cushion pad (13) also by screw on loam cake (18), water-dividing chamber assembly (21) is fixedlyed connected with cylinder body (15), intake pipe (22) is fixed in water-dividing chamber (23) bottom, outlet pipe (10) is fixed in water-dividing chamber (23) top, the one-way valve (A) that sheet rubber constitutes is fixed on water-dividing chamber (23) bottom, and the one-way valve (B) that sheet rubber constitutes is fixed on the bottom of outlet pipe (10), in like manner, one-way valve (D) with (C) be separately fixed at the bottom of water-dividing chamber (23) and the bottom of outlet pipe (10).

When using the utility model, pedal treadle (8), tow chain (4) drives sprocket wheel (5) and rotates around sprocket shaft (6), piston sheet (16) is under the drive of connecting rod (14), on the work, down toward motion, when piston sheet (16) when moving upward, leather cup (17) reduces cylinder body (15) internal air pressure, and in atmospheric effect, one-way valve (A) is opened, (B) closure, water enters in the cylinder body (15) from intake pipe (22), when piston sheet (16) when moving downward, under the effect of hydraulic pressure, one-way valve (A) closure, (B) open, water enters outlet pipe (10) and discharges from cylinder body (15), and the piston sheet (16) in two cylinder bodies like this (15) moves up and down repeatedly, the source, water source is constantly entered from intake pipe (22), and discharge from waste pipe (10).

When pedaling treadle (8), because of two back-to-back leather cups (17) are housed on the piston sheet (16), so connecting rod (14) requires to move on same axis with cylinder body (15), when causing connecting rod (14) on the same axis of cylinder body (15), not move owing to the irregular other reasons such as grade of exerting oneself, then rocking arm (9) is regulated automatically, rotate a certain position around bearing pin (3), thereby make connecting rod (14) guarantee on the axis of cylinder body (15), to move.

Claims

1, a kind of foot-operated lift pump with lift, handrail (1) is fixed in the strut (2), bearing support (7) is fixed on the middle part of strut (2), be fixed with piston sheet (16) in the other end of connecting rod (14), piston sheet (16) is inserted in cylinder body (15), on, lower cover (18), (19) by screw at cylinder body (15) two ends, water-dividing chamber assembly (21) is fixedlyed connected with cylinder body (15), intake pipe (22) is fixed in water-dividing chamber (23) bottom, outlet pipe (10) is fixed in the top of water-dividing chamber (23), the one-way valve (A) that is made of sheet rubber is fixed on water-dividing chamber (23) bottom, and the one-way valve (B) that sheet rubber constitutes is fixed on the bottom of outlet pipe (10), in like manner, one-way valve (D) with (C) be separately fixed at the bottom of water-dividing chamber (23) and the bottom of outlet pipe (10), it is characterized in that: sprocket wheel (5) is installed in the bearing support (7) by the sprocket shaft (6) that is fixed on the bearing support (7), tow chain (4) is walked around sprocket wheel (5) and is separately fixed on two treadles (8), one end of treadle (8) is connected with rocking arm (9) bearing pin respectively, and the other end of rocking arm (9) also is fixed on the outlet pipe (10) by bearing pin, connecting rod (14) is connected with treadle (8) with the below of treadle (8) link position at tow chain (4) by bearing pin, is coated with on the metal cylinder body (15) and is stamped enamel; Piston sheet (16) clamping has two back-to-back leather cups (17), cushion pad (13) by screw on loam cake (18).