CN101225806A

CN101225806A - Fluid piston pump

Info

Publication number: CN101225806A
Application number: CNA2007100662168A
Authority: CN
Inventors: 曹德才
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-21
Filing date: 2007-09-21
Publication date: 2008-07-23

Abstract

The invention discloses a non-prepressing passive fluid piston pump with synchronous suction and discharge. When outside forces act on a push-pull rod of the piston 3 or a pump body 5 respectively or at the same time, and the piston 4 makes coaxial vertical and relative movement inside a pump cylinder 6, positive and negative pressure is produced on both sides of the piston 4 at the same time. An inlet column valve 7 and an outlet ball valve 11 are pressed simultaneously along with pressure conduction, and move axially from the direction of the positive pressure to the direction of the negative pressure inside the valve base. The liquid inside the pump cylinder 6 sprays towards the outlet due to the positive pressure. The negative pressure inside the pump cylinder 6 forms vacuum to suck the liquid outside the pump, so that the liquid piston pump can realize dual-stoke synchronous spray and suction.

Description

Fluid piston pump

Technical field:

The present invention relates to the synchronous fluid piston pump of a kind of no precompressed passive type suction, belong to universal machine structure class.

Background technique:

Traditional no precompressed passive type fluid piston pump sprays or discharging afterwards for sucking, and is that the reciprocal round trip one of piston is inhaled row's mode, and spray is arranged and sucked and can not carry out simultaneously, promptly can not spray row when sucking, and can not suck during spray row, and generally structure is comparatively complicated.

Summary of the invention:

The objective of the invention is to realize that the reciprocal double-stroke suction of piston is synchronous, promptly possess the import suction and the outlet tension that increase and decrease along with the variation of suffered external force simultaneously, can when extracting and suck, import outlet spray or discharging, make fluid piston pump eliminate idle work, the fluid piston pump that improves equal cylinder diameter and stroke is with the suction efficient in the equal time.

Above-mentioned purpose realizes by the following method: as scheming: a kind of no precompressed fluid piston pump, comprise end cap 1, end cap central seal 2, piston push-pull rod 3, piston 4, the pump housing 5, pumping cylinder 6, import column valve 7, import valve seat 8, pipeline 9, outlet valve seat 10, outlet ball valve 11, safety check 12, it is characterized in that: a pumping cylinder 6 is arranged in the pump housing 5, by pipeline 9 and import and export valve seat 8,10 join, form space loop, piston 4 is in the pumping cylinder 6, when the external force of formation such as manpower or mechanomotive force acts on the piston push-pull rod 3 and the pump housing 5 respectively or simultaneously, when piston 4 is axially moved back and forth in pumping cylinder 6, at once produce one positive one negative two pressure districts in the pumping cylinder space at piston 4 two ends simultaneously, two kinds of pressure produce tension and suction respectively, act on import column valve 7 and outlet ball valve 11 respectively by pipeline 9, make it at valve seat 8, slided by a side of negative pressure by a direction that is subjected to normal pressure in 10, make and be subjected to open outlet of normal pressure one side and sealing import, be subjected to negative pressure one side sealing outlet and open import simultaneously, tension makes the fluid that is subjected to normal pressure one side in the pumping cylinder 6 by outlet spray row; The suction fluid that pump is outer is entered a side who is subjected to negative pressure in the pumping cylinder 6 by inlet suction, along with piston 4 is made axially reciprocating in pumping cylinder 6, the positive negative pressure on piston 4 both sides alternately changes, make import column valve 7 and outlet ball valve 11 in valve seat 8,10, do alternately folding back and forth simultaneously, at inlet/outlet safety check 12 is housed, prevent to occur when external force from stopping fluid and recharge, thereby realize the synchronous suction of fluid piston pump reciprocating stroke.

Description of drawings:

End cap 1: there is a through hole at the center, and seal 2 is housed, and effect is to allow the piston push-and-pull When bar 3 is in axial sliding, can carry out capping to the termination of the pump housing 5 again, keep pumping cylinder 6 The sealing of one end;

Seal 2: by mould, the encapsulant such as glue makes, and does axially sliding at piston push-pull rod 3 When moving, keep the sealing of pumping cylinder 6 one ends;

Piston push-pull rod 3: the effect of external force is delivered to piston 4, makes piston 4 with outer masterpiece Axially reciprocating;

Piston 4: be in the pumping cylinder 6, it is two spaces that pumping cylinder 6 sealing is cut off, and can be in axial sliding at pumping cylinder 6, when piston 4 during with outer masterpiece axially reciprocating, can form one positive one negative two opposite pressure simultaneously in two spaces of pumping cylinder 6;

The pump housing 5: being the fluid storage tube, is again the cylinder body for piston motion;

Pumping cylinder 6: the space of fluid and piston 4 activities;

Import column valve 7: cooperate with import valve seat 8, be in axial sliding in import valve seat 8 with pressure change in the pumping cylinder 6, close when being subjected to normal pressure import on one side and open the import that is subjected to negative pressure one side, allow fluid enter and be subjected in the negative pressure pumping cylinder 6 on one side through import valve seat 8, pipeline 9;

Import valve seat 8: cooperate with import column valve 7,, the fluid of suction line 9 and pumping cylinder 6 is carried out break-in distribute with pressure change in the pumping cylinder 6;

Pipeline 9: fluid is into and out of the path of pumping cylinder 6

Outlet valve seat 10: cooperates with outlet ball valve 11, with pressure change in the pumping cylinder 6, in the pumping cylinder 6 by the road 9 fluids that extrude carry out the break-in distribution;

Outlet ball valve 11: cooperate with outlet valve seat 10, be in axial sliding in outlet valve seat 10 with pressure change in the pumping cylinder 6, close and be subjected to negative pressure to open the outlet that is subjected to normal pressure when exporting, allow be subjected in the pumping cylinder 6 normal pressure fluid on one side by the road 9, outlet valve seat 10 is from the outlet discharge;

Safety check 12: be positioned at import and export, when the fluid piston air pump inoperative, be used to prevent to be drawn to import and the interior fluid reflux of outlet Outer Tube;

(annotate: according to the difference of purposes, import valve seat 8 and outlet valve seat 10 can be contained in the pump housing 5 and arbitrary position, two ends, also can be independent of outside the pump housing 5, are connected with the pump housing by pipeline.)

Embodiment:

1. keep import unobstructed, equipped flexible pipe and joint can be used as a kind of quick pump in valve seat 10 outlet ports;

2. also feed the fluid that needs suction at inlet's tipping pipeline,, promptly can be used as simple and easy fire-fighting monitor, agricultural (family expenses) sprayer, toy water injecting gun etc. at outlet port tipping corresponding pipeline and shower nozzle;

3. equipped manually corresponding or maneuvering gear can become suction pump and oil well pump.

In concrete the enforcement following three kinds of situations are arranged, can use according to actual needs:

1. the pump housing 5 is fixing, piston push-pull rod 3 fore and aft motion;

2. piston push-pull rod 3 is fixing, and the pump housing 5 is reciprocating;

3. the piston push-pull rod 3 and the pump housing 5 are all unfixing.

The present invention is the novelty breakthrough to the conventional fluid piston pump, and the large-scale irrigation and drainage that can be used for are taken out The operation such as water, oil pumping in oil fields; Medium-sized be applicable to need safe, convenient, fast, quantitative, The operations such as mobile or fixed can, fire-fighting, sprinkling, flushing, pump drainage, pouring, as: the worker The industry quantitative filling device; The single-stage of industry, agricultural, family or multistage water lift, setting-out; Portable The formula fire-fighting does not have precompressed Wet-dry injector; Agricultural atomizer; Household flower watering, carwash, inflation; The pump drainage of liquid or gas among a small circle is such as manual inflator, toy water-blaster etc.; Small-sized can Be used for that fuel pump manufactures and designs, hydraulic jack oil pump etc., the present invention has following features: knot Structure is simple, easy to manufacture, with low cost, failure rate is low, easy to maintenance etc.; Can reduce and be To eliminating idle work, improved efficient; Because have simultaneously the suction of import and the tension of outlet, Thereby possess simultaneously the journey of suction and lift, therefore have widely usage range.

Claims

1. no precompressed fluid piston pump, comprise end cap 1 and Sealing 2, piston push-pull rod 3 and piston 4, the pump housing 5 and pumping cylinder 6, import column valve 7, import valve seat 8, pipeline 9, outlet valve seat 10, outlet ball valve 11, safety check 12, it is characterized in that: piston 4 is in the pumping cylinder 6 of sealing, when external force acts on the piston push-pull rod 3 and the pump housing 5 respectively or simultaneously, it is coaxial when vertically relatively moving that the piston 4 and the pump housing 5 are done, piston 4 both sides produce positive negative pressure immediately, push away suction side column valve 7 simultaneously by pipeline 9 and move folding, be subjected to normal pressure fluid on one side in the pumping cylinder 6 and arrange by the outlet spray with outlet ball valve 11; Be subjected to negative pressure in the pumping cylinder 6 and produce the vacuum fluid that pump is outer on one side by inlet suction, along with the piston push-pull rod 3 and the pump housing 5 cause the positive negative pressure on piston 4 both sides alternately to change as axially reciprocating, make import column valve 7 and outlet ball valve 11 do the two way alternate folding, thereby realize the synchronous suction of fluid pump reciprocating stroke.