CN201180824Y

CN201180824Y - One-way valve

Info

Publication number: CN201180824Y
Application number: CNU2008200699938U
Authority: CN
Inventors: 赵玉梁
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-14
Filing date: 2008-04-14
Publication date: 2009-01-14
Anticipated expiration: 2018-04-14

Abstract

The utility model discloses a one-way valve, which comprises a threaded valve body which can be arranged at two ends of a pipe casting, and a valve plug arranged inside the valve body. A valve plug seat is arranged inside the valve body; the valve plug comprises a T-shaped guide core bar; an elastic sealing gasket is arranged on the top of the T-shaped guide core bar; the bar part of the core bar is movably matched with a guide hole on the valve plug seat; a compression spring is arranged on the T-shaped guide core bar in a penetrating manner; the valve is formed by the threaded connection of a valve sleeve and a valve seat; and the diameter of a valve cavity encircled by the valve sleeve and the valve seat is larger than the inner diameters of pipes at two ends of the valve body. The one-way valve has the advantages of simple structure, convenient assembly, disassembly and maintenance, strong fluid continuity, good air tightness, and accurate and flexible fluid closure. The one-way valve can be widely applied to a system for delivering fluid through pipelines, is easy to process and manufacture, is suitable for batch production, and has wide market prospect.

Description

A kind of one-way valve

Technical field

The utility model belongs to the FLUID TRANSPORTATION technical field, is specifically related to a kind of one-way valve.

Background technique

In the line transportation fluid system, often use one-way valve, playing unidirectional conducting oppositely ends, China utility model patent CN98221870.2 discloses a kind of one-way valve, the valve body of this one-way valve is as a whole, if spool has been broken, the one-way valve that will renew, can not the spool of one-way valve inside be repaired or replaced, cause unnecessary waste, all less in the penetrating aperture of the valve pocket volume of one-way valve and valve core case in addition, when fluid communication, the flow velocity of convection cell has considerable restraint, has influence on the efficient of FLUID TRANSPORTATION, brings inconvenience for people's productive life.

The model utility content

The utility model is in order to solve deficiency of the prior art, provides a kind of and has been convenient to dismantle and maintenance, one-way valve that fluid communication is smooth more.

For solving the problems of the technologies described above, a kind of one-way valve, comprise the spool that screwed valve body in pipe fitting two ends and valve inner are provided with, valve inner is provided with valve core case, spool comprises T shape guiding core bar, the top of T shape guiding core bar is provided with the elastic packing pad, the bar portion of T shape guiding core bar cooperates with the pilot hole on the valve core case is movable, be equipped with pressure spring on the T shape guiding core bar, described valve body is made of by being threaded valve pocket and valve seat, and the valve pocket diameter dimension that valve pocket and valve seat surround is greater than the internal diameter size of valve body two ends pipeline.

Described valve seat or valve sleeving inner wall are fixedlyed connected with valve core case by the three root plates that evenly are provided with on the lateral circumferential at least.

Described valve pocket outer wall circumference is provided with anti-skid design.

Adopt the be threaded spool of easily dismounting efficiently and maintenance valve inner of said structure, valve seat and valve pocket, the valve pocket overstriking that valve pocket and valve seat surround has bigger operating space when making dismounting maintenance spool, and is convenient to fluid flow; Floor sutaining valve core print seat is set, has strengthened the lateral circumferential cross section of fluid flow, make fluid flow more smooth and easy; Valve pocket outer wall circumference is provided with anti-skid design and makes Skidproof labor-saving when dismounting valve seat and valve pocket; The utility model is simple in structure, be convenient to dismounting and maintenance, the fluid communication performance is strong, good airproof performance, the accurate and flexible of damming, and can be widely used in the system of line transportation fluid, is easy to manufacturing and produces in batches, and very vast market prospect is arranged.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is that the A-A of Fig. 1 is to sectional view.

Embodiment

As depicted in figs. 1 and 2, a kind of one-way valve of the present utility model, comprise the valve body that the pipe fitting two ends are connected with pipeline thread, valve body is made of by being threaded valve pocket 1 and valve seat 2, valve pocket 3 diameter dimensions that valve pocket 1 and valve seat 2 surround are greater than the internal diameter size of valve body two ends pipeline, cavity 3 inside are provided with spool, spool comprises T shape guiding core bar 4, the umbrella top of T shape guiding core bar 4 is provided with elastic packing pad 5, the bar portion of T shape guiding core bar 4 cooperates with pilot hole 7 activities on the valve core case 6, valve seat 2 inwalls are fixedlyed connected with valve core case 6 by the three root plates 8 that evenly are provided with on the lateral circumferential at least, present embodiment adopts three root plates 8, three root plates 8 all are located on the valve seat 2, be equipped with pressure spring 9 on the T shape guiding core bar 4, pressure spring 9 two ends withstand on respectively between the umbrella top and valve core case 6 of T shape guiding core bar 4, and valve pocket 1 outer wall circumference is provided with anti-skid design 10.

During work, when fluid enters valve pocket 1 from the pump housing or other pipeline, the pressure that elastic packing pad 5 is subjected to fluid is during greater than the elastic force of pressure spring 9, T shape guiding core bar 4 is along moving in the pilot hole 7 of direction on valve core case 6 of valve pocket 1 sensing valve seat 2, elastic packing pad 5 breaks away from valve pocket 1, fluid enters valve pocket 3, flows out the outlet pipe of valve seat 2 by the gap between the three root plates 8; When fluid no longer enter or underpressure when overcoming the elastic force of pressure spring 9, T shape guiding core bar 4 resets immediately, elastic packing pad 5 seals the water intake of valve pocket 1.

Claims

1, a kind of one-way valve, comprise the spool that screwed valve body in pipe fitting two ends and valve inner are provided with, valve inner is provided with valve core case, spool comprises T shape guiding core bar, the top of T shape guiding core bar is provided with the elastic packing pad, the bar portion of T shape guiding core bar cooperates with the pilot hole on the valve core case is movable, be equipped with pressure spring on the T shape guiding core bar, it is characterized in that: described valve body is made of by being threaded valve pocket and valve seat, and the valve pocket diameter dimension that valve pocket and valve seat surround is greater than the internal diameter size of valve body two ends pipeline.

2, a kind of one-way valve according to claim 1 is characterized in that: described valve seat or valve sleeving inner wall are fixedlyed connected with valve core case by the three root plates that evenly are provided with on the lateral circumferential at least.

3, a kind of one-way valve according to claim 1 and 2 is characterized in that: described valve pocket outer wall circumference is provided with anti-skid design.