CN208252842U - Non-return valve - Google Patents

Abstract

The utility model provides a kind of non-return valve, belong to valve arrangement technical field, valve body, the inlet spool in through-hole, the outlet valve core in through-hole including having axially extending bore, and the ball in through-hole and between inlet spool and outlet valve core；Inlet spool be equipped with along axially through intake channel；The internal diameter of intake channel is less than or equal to the outer diameter of ball；Outlet valve core be equipped with along axially through and radially spaced distribution a plurality of exit passageway；The internal diameter of exit passageway is less than ball outer diameter；The radial dimension of the axis of the axis and outlet valve core of exit passageway is greater than or equal to the outer diameter of ball.Four non-return valve provided by the utility model, only valve body, inlet spool, outlet valve core and ball components, structure is simple, convenient for making, and low manufacture cost；Inlet spool and outlet valve core are flush-mounted in respectively in the through-hole of valve body, and ball is located in through-hole, and mounting means is simple and convenient, and non-return valve provided by the utility model is applied widely.

Description

Non-return valve

Technical field

The utility model belongs to valve arrangement technical field, is to be related to a kind of non-return valve more specifically.

Background technique

Non-return valve is a kind of a kind of valve that can quickly and conveniently prevent medium reverse flow, is mounted on medium and passes through Small pipeline on.Structure is complicated for the non-return valve that present industrial circle uses, and designs and produces required precision height, production cost It is high.Complicated non-return valve is applied on the not high pipeline of installation and requirement precision, there are problems that cost waste.

Utility model content

The purpose of this utility model is to provide a kind of non-return valve, to solve, existing in the prior art structure is complicated, raw Produce technical problem at high cost.

In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of non-return valve, including with axial The valve body of through-hole, the inlet spool in the through-hole, the outlet valve core in the through-hole, and be located at described In through-hole and the ball between the inlet spool and the outlet valve core；The inlet spool be equipped with along axially through Intake channel；The internal diameter of the intake channel is less than or equal to the outer diameter of the ball；The outlet valve core is equipped with and passes through along axial direction The a plurality of exit passageway of logical and radially spaced distribution；It is logical that the internal diameter of the exit passageway is less than outlet described in the ball outer diameter Radial dimension between the axis in road and the axis of the outlet valve core is greater than or equal to the outer diameter of the ball.

Further, the intake channel is forge piece of step type structure, the first intake channel including cylindrical type and hemispheric Second intake channel；The internal diameter of second intake channel is equal with the outer diameter of the ball.

Further, the internal diameter of first intake channel is less than the internal diameter of second intake channel.

Further, the axis collinear of the axis of first intake channel and second intake channel.

Further, the axis collinear of the axis of the valve body and the inlet spool, the axis of the valve body with it is described The axis collinear of outlet valve core.

The beneficial effect of non-return valve provided by the utility model is: compared with prior art, the check of the utility model Four valve, only valve body, inlet spool, outlet valve core and ball components, structure is simple, convenient for production, and makes and is mounted to This is low；Inlet spool and outlet valve core are flush-mounted in respectively in the through-hole of valve body, and ball is located in through-hole, so that mounting means is simple Convenient, non-return valve provided by the utility model is applied widely.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of non-return valve provided by the embodiment of the utility model；

Fig. 2 is the structural schematic diagram of the inlet spool of non-return valve provided by the embodiment of the utility model；

Fig. 3 is the structural schematic diagram of the outlet valve core of non-return valve provided by the embodiment of the utility model.

In figure: 10, valve body；11, through-hole；20, inlet spool；21, intake channel；211, the first intake channel；212, Two intake channels；30, ball；40, outlet valve core；41, exit passageway.

Specific embodiment

In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein It applies example to be only used to explain the utility model, is not used to limit the utility model.

It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element On one element or indirectly on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.

It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features." multiple ", " several " are meant that two in the description of the present invention, It is a or more than two, unless otherwise specifically defined.

Also referring to Fig. 1, now non-return valve provided by the utility model is illustrated.The non-return valve, including have The valve body 10 of axially extending bore 11, the inlet spool 20 in through-hole 11, the outlet valve core 40 in through-hole 11, and Ball 30 in through-hole 11 and between inlet spool 20 and outlet valve core 40；Inlet spool 20 be equipped with along axially through Intake channel 21；The internal diameter of intake channel 21 is less than or equal to the outer diameter of ball 30；The internal diameter of exit passageway 41 is less than ball 30 outer diameter.Outlet valve core 40 be equipped with along axially through and radially spaced distribution a plurality of exit passageway 41；Exit passageway 41 Internal diameter be less than 30 outer diameter of ball；Radial dimension between the axis of exit passageway 41 and the axis of outlet valve core 40 is greater than or waits In the outer diameter of ball 30.

Non-return valve provided by the utility model use process is as follows:

Medium is out of, intake channel 21 flows into valve body 10 through-hole 11, and ball 30 is under the promotion of medium to outlet valve core 40 It is mobile, since the internal diameter of exit passageway 41 is less than 30 outer diameter of ball, and the axis of the axis of exit passageway 41 and outlet valve core 40 Between radial dimension be greater than or equal to the outer diameter of ball 30, ball 30 will not release exit passageway 41, and ball 30 by medium All exit passageways 41 will not be blocked, to guarantee that the medium in valve body 10 can smoothly be flowed out from exit passageway 41；And When the pressure of 10 entrance side of valve body die-offs, and valve body 10 exports side pressure higher than entrance side pressure, medium divides from a plurality of exit passageway 41 It is not back in valve body 10, and pushes ball 30 mobile to inlet spool 20, since 30 outer diameter of ball is logical more than or equal to import 21 internal diameter of road, the meeting of ball 30 block input port channel 21, to prevent medium counter flow from entering inlet spool 20.In addition, adjacent two go out The pressure of media flow is alleviated between mouth channel 41, the outlet side for avoiding valve body 10 is pressed through higher than entrance side pressure.Specifically, Four exit passageways 41 are equipped in Fig. 3.

Non-return valve provided by the utility model, compared with prior art, only valve body 10, inlet spool 20, outlet valve core 40 and 30 4 components of ball, structure is simple, convenient for production, and makes and installation cost is low；Inlet spool 20 and outlet valve core 40 are flush-mounted in through-hole 11 respectively, and ball 30 is located in through-hole 11, so that mounting means is simple and convenient, it is provided by the utility model Non-return valve is applied widely.

Further, Fig. 1 and Fig. 2 are please referred to, as a kind of specific embodiment of non-return valve provided by the utility model, Intake channel 21 is forge piece of step type structure, the first intake channel 211 and hemispheric second intake channel 212 including cylindrical type； Internal diameter of the internal diameter of first intake channel 211 less than the second intake channel 212, the internal diameter and ball 30 of the second intake channel 212 Outer diameter it is equal.When the pressure of 10 entrance side of valve body die-offs, and valve body 10 exports side pressure higher than entrance side pressure, medium counter flow is pushed When ball 30 is mobile to inlet spool 20, ball 30 blocks the second intake channel 212, since the second intake channel 212 is hemisphere Shape structure, ball 30 are completely embedded into the second intake channel 212, and the second intake channel 212 is blocked completely, without gap, from And avoid medium back flow.

Further, Fig. 1 and Fig. 2 are please referred to, as a kind of specific embodiment of non-return valve provided by the utility model, The axis collinear of the axis of first intake channel 211 and the second intake channel 212, so that inlet spool 20 utilizes convenient for production Lathe tool of lathe just can make intake channel 21.

Further, referring to Fig. 1, a kind of specific embodiment as non-return valve provided by the utility model, valve body 10 axis and the axis collinear of inlet spool 20, the axis of valve body 10 and the axis collinear of outlet valve core 40.Valve body 10, import Spool 20, outlet valve core 40 three it is axial conllinear, integrally assembled convenient for the non-return valve.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (6)

1. non-return valve, it is characterised in that: including with the valve body of the axially extending bore, inlet spool in the through-hole, embedding Loaded on the outlet valve core in the through-hole, and be located in the through-hole and be located at the inlet spool and the outlet valve core it Between ball；The inlet spool be equipped with along axially through intake channel；The internal diameter of the intake channel is less than or equal to institute State the outer diameter of ball；The outlet valve core be equipped with along axially through and radially spaced distribution a plurality of exit passageway；It is described go out The internal diameter in mouth channel is less than the ball outer diameter；Radial direction between the axis of the exit passageway and the axis of the outlet valve core Size is greater than or equal to the outer diameter of the ball.

2. non-return valve as described in claim 1, it is characterised in that: the intake channel is forge piece of step type structure, including cylindrical type The first intake channel and hemispheric second intake channel；The outer diameter phase of the internal diameter of second intake channel and the ball Deng.

3. non-return valve as claimed in claim 2, it is characterised in that: the internal diameter of first intake channel be less than described second into The internal diameter in mouth channel.

4. non-return valve as claimed in claim 2 or claim 3, it is characterised in that: the axis of first intake channel and described second The axis collinear of intake channel.

5. non-return valve as claimed in any one of claims 1-3, it is characterised in that: the axis of the valve body and the inlet valve The axis collinear of core, the axis collinear of the axis of the valve body and the outlet valve core.

6. non-return valve as claimed in claim 4, it is characterised in that: the axis of the axis of the valve body and the inlet spool is total Line, the axis collinear of the axis of the valve body and the outlet valve core.