CN201679666U

CN201679666U - Manual pump

Info

Publication number: CN201679666U
Application number: CN2010201588338U
Authority: CN
Inventors: 齐跃宇; 宣广奇; 曹英强; 石炳存
Original assignee: Wuxi Institute of Technology
Current assignee: Wuxi Institute of Technology
Priority date: 2010-03-20
Filing date: 2010-03-20
Publication date: 2010-12-22
Anticipated expiration: 2020-03-20

Abstract

The utility model discloses a manual pump which comprises a valve seat, an oil outlet control one-way valve, an oil inlet control one-way valve, a crank and piston mechanism and a handle, wherein the oil outlet control one-way valve and the oil inlet control one-way valve are arranged in the valve seat; the flowing direction of fluid is controlled through the two one-way valves; and the crank and piston mechanism is arranged in a piston cavity and is connected together with the handle. In the utility model, the cubage of the piston cavity is changed by converting the rotary motion of the handle into the reciprocating motion of a piston, and the flowing direction of the fluid is controlled through the oil outlet control one-way valve and the oil inlet control one-way valve in the valve seat at the bottom of the pump. By adopting the structure, the manual pump achieves a certain market demand; and additionally, since a certain mechanical and hydraulic general knowledge is required during the design and manufacture of the manual pump, the manufacture of the manual pump can serve as a comprehensive mechanical and hydraulic training item for students. Besides, the utility model has the advantages of simple structure, reliable operation, convenient and practical use, low probability of leakage and the like, thereby having enormous popularization value.

Description

A kind of hand pump

Technical field:

The utility model relates to a kind of hand pump, relates in particular to a kind of liquid that is used to extract, and can be for the hand pump of school as teaching product production.

Background technique:

In the building site operation in the open air of industries such as electric power, building, need sometimes liquid (as lubricant oil) is taken out from storage toward needing to use part, if use oil hydraulic pump, the pump internal leakage is serious when low-speed running; When running up, pumping pressure has raising slightly, but because the wearing and tearing of pump and in let out, volumetric efficiency significantly descends, be difficult to reach rated pressure, oil hydraulic pump works long hours and has aggravated wearing and tearing, oily temperature rise, cause aging, the damage of hydraulic element wearing and tearing and Sealing thus, the loss of seal ability, hydraulic oil is rotten, causes fault to take place at last, at present, the device that does not also have manual direct extraction liquid on the market.

The model utility content:

The utility model provides a kind of liquid that is used to extract at the deficiencies in the prior art, and can be for the hand pump of school as teaching product production.

For realizing above purpose, the technical solution adopted in the utility model is as follows:

A kind of hand pump is made up of valve seat, fuel-displaced controlling non-return valve, oil-feed controlling non-return valve, crank piston mechanism, handle; Fuel-displaced controlling non-return valve and oil-feed controlling non-return valve are arranged in the valve seat, and by the flow direction of two one-way valve control fluids, the crank piston mechanism is arranged in the piston cavity, and crank piston mechanism and handle link together.

The reciprocating motion that the utility model adopts the rotation motion of handle to be converted into piston is realized the change of piston cavity internal volume, controls the flow direction of fluid by the fuel-displaced controlling non-return valve in the pump bottom valve seat, oil-feed controlling non-return valve; Adopt the hand pump of this structure to have certain market demand, need certain machinery, hydraulic pressure general knowledge in addition when designing and producing, it makes the comprehensive practical traning project that also can be used as student's machinery, hydraulic pressure.

Description of drawings:

Fig. 1 is the utility model structural representation;

Embodiment:

As shown in Figure 1, a kind of hand pump is made up of valve seat 1, fuel-displaced controlling non-return valve 2, oil-feed controlling non-return valve 3, crank piston mechanism 4, handle 5; During enforcement, shake handle 5, crank piston mechanism 4 is to left movement, it is big that the piston cavity volume becomes, and forms negative pressure, and fuel-displaced controlling non-return valve 2 is closed, oil-feed controlling non-return valve 3 is opened, this moment fluid be inhaled into piston cavity by storage, when piston prop up move to range after, crank piston mechanism 4 moves from right to left, the piston cavity volume diminishes, oil-feed controlling non-return valve 3 is closed, and fuel-displaced controlling non-return valve 2 is opened, and liquid is transported to another place by a place.

The utlity model has the advantages such as simple in structure, reliable, convenient and practical, difficult leakage, have great promotional value.

Claims

1. a hand pump is made up of valve seat, fuel-displaced controlling non-return valve, oil-feed controlling non-return valve, crank piston mechanism, handle; It is characterized in that: fuel-displaced controlling non-return valve and oil-feed controlling non-return valve are arranged in the valve seat, and the crank piston mechanism is arranged in the piston cavity, and crank piston mechanism and handle link together.