CN204328078U - Positive and negative pressure surface contact liq one-way valve - Google Patents
Positive and negative pressure surface contact liq one-way valve Download PDFInfo
- Publication number
- CN204328078U CN204328078U CN201420789083.2U CN201420789083U CN204328078U CN 204328078 U CN204328078 U CN 204328078U CN 201420789083 U CN201420789083 U CN 201420789083U CN 204328078 U CN204328078 U CN 204328078U
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- negative pressure
- malleation
- liquid
- way valve
- film
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Abstract
The utility model relates to a kind of positive and negative pressure surface contact liq one-way valve, and it can be used in quantitative and directed liquid conveying device, as fluid jetting head, and binary or multi-component liquid mixing arrangement, quantitative liquid transfer device etc.It comprises liquid entering hole and liquid outlet, liquid entering hole and negative pressure are opened outside film and are connected, negative pressure is opened inside film and is provided with water conservancy diversion annulus, be provided with the liquid stream be connected with piston/cylinder inside water conservancy diversion annulus to open one's mouth, blast groove type cylinder ring is provided with in positive and negative pressure surface contact one-way valve, be provided with malleation outside blast groove type cylinder ring and open film, be also provided with elasticity spherical surface body in positive and negative pressure surface contact one-way valve, the outer surface of elasticity spherical surface body is provided with malleation and opens the concavo-convex annulus of film and location.The utility model uses elasticity spherical surface body to open film to ensure to obtain reliable negative pressure and close and malleation is opened in conjunction with taper malleation, and uses taper negative pressure to open film to obtain reliable negative pressure in conjunction with water conservancy diversion annulus with guarantee and open and close with malleation.
Description
Technical field
The utility model belongs to a kind of positive and negative pressure surface contact liq one-way valve.
Background technique
At present, general employing ball type (without metal spring type) liquid non-return valve or linear contact lay type liquid non-return valve in liquid non-return valve, but the reliability of these one-way valves is not high, especially uses with having when vibrations in low pressure.Reason be general ball type one-way valve or the one-way valve real work of linear contact lay type time orientation sealing, the effect opened is not as Thin Elastic face contact type one-way valve, because the sealing area that the latter has surface of contact larger, and the receptance of face contact type one-way valve to pressure is also greater than the former, be applicable to very much using under lower negative pressure.
Summary of the invention
The purpose of this utility model is to overcome above deficiency, provides a kind of positive and negative pressure surface contact liq one-way valve.
The purpose of this utility model is achieved through the following technical solutions: a kind of positive and negative pressure surface contact one-way valve, comprise liquid entering hole and liquid outlet, be provided with negative pressure inside liquid entering hole and open film, negative pressure is opened inside film and is provided with water conservancy diversion annulus, be provided with the liquid stream be connected with piston/cylinder inside water conservancy diversion annulus to open one's mouth, blast groove type cylinder ring is provided with in positive and negative pressure surface contact one-way valve, be provided with malleation outside blast groove type cylinder ring and open film, also be provided with elasticity spherical surface body in just negative contact one-way valve, the outer surface of elasticity spherical surface body is provided with malleation and opens the concavo-convex annulus of film and location.
The utility model compared with prior art has the following advantages: the utility model uses elasticity spherical surface body to open film to ensure to obtain reliable negative pressure and close and malleation is opened in conjunction with taper malleation, and uses taper negative pressure to open film to obtain reliable negative pressure in conjunction with water conservancy diversion annulus with guarantee and open and close with malleation.
accompanying drawing illustrates:
Fig. 1 is profile stretch-out view of the present utility model;
Fig. 2 is positive and negative pressure surface contact one-way valve negative pressure force structure figure;
Fig. 3 is positive and negative pressure surface contact one-way valve malleation force structure figure;
Number in the figure: 1-liquid entering hole, 2-liquid outlet, 3-negative pressure open film, 4-water conservancy diversion annulus, 5-liquid stream is opened one's mouth, 6-blast groove type cylinder ring, 7-malleation open film, 8-elasticity spherical surface body, 9-locate concavo-convex annulus.
embodiment:
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment, only for explaining the utility model, does not form the restriction to the utility model protection domain.
As Fig. 1 shows the embodiment of a kind of just negative contact liq one-way valve of the utility model, comprise liquid entering hole 1 and liquid outlet 2, be provided with negative pressure inside liquid entering hole 1 and open film 3, negative pressure is opened inside film 3 and is provided with water conservancy diversion annulus 4, be provided with the liquid stream be connected with piston/cylinder inner chamber inside water conservancy diversion annulus 4 and open one's mouth 5, blast groove type cylinder ring 6 is provided with in positive and negative pressure surface contact one-way valve, be provided with malleation outside blast groove type cylinder ring 6 and open film 7, elasticity spherical surface body 8 is also provided with in positive and negative pressure surface contact one-way valve, the outer surface of elasticity spherical surface body 8 is provided with malleation and opens the concavo-convex annulus 9 of film 7 and location.The function of elasticity spherical surface body is: when piston remains static, malleation is opened film and is closed by force by elasticity spherical surface body, this just ensures that the liquid in one-way valve liquid outlet tube may turn back in one-way valve in no instance again, thus reaches the object of the unidirectional output of liquid quantitative.Just negative contact liq one-way valve can be used in quantitative and directed liquid conveying device, as fluid jetting head, and binary or multi-component liquid mixing arrangement, quantitative liquid transfer device etc.
The working principle of positive and negative pressure surface contact liq one-way valve:
When the liquid stream place of opening one's mouth has negative pressure to produce, when the piston in the piston cylinder be also just connected therewith outwards moves, its negative pressure direction is as shown in thick arrow black in Fig. 2; This negative pressure is opened in malleation the transverse force that film inclined-plane produces and is greater than vertical upward force (see figure 2), adds negative pressure and can inhale and draw elasticity spherical surface body to move down, thus forces malleation to open film to close; And this negative pressure can force the positive and negative pressure surface negative pressure contacted in one-way valve to open film to open, now liquid between the gap that open corresponding to film and one-way valve fixed block to be opened between surface of contact of the negative pressure from liquid-inlet along positive and negative pressure surface in contact one-way valve, will be opened one's mouth by negative pressure inspiration in cylinder body through liquid guide flow annulus and liquid stream; Above step is that liquid is opened one's mouth to the process of the unidirectional input of piston cylinder inner chamber through liquid stream by liquid inlet.
When liquid stream has been opened one's mouth malleation, when the piston in the piston cylinder be namely attached thereto moves inward, its malleation direction is as thick arrow indication black in Fig. 3; This malleation will force the positive and negative pressure surface negative pressure contacted in one-way valve to open film and close, open on the inner side of film because first this malleation can be applied to negative pressure under the guiding of water conservancy diversion annulus, force the face of it and corresponding fixed block to be close to thus make liquid-inlet place tunicle close, the liquid at this moment in one-way valve just can not turn back in liquid storage tank thus; And this malleation can force the positive and negative pressure surface malleation contacted in one-way valve to open film to open, because this malleation can extrude malleation and open film and inwardly shrink the (see figure 3) that to move up with elasticity spherical surface body, thus the face making this malleation open film and its corresponding fixed block is separated, the gap that at this moment liquid will be opened between film face corresponding thereto along malleation enters threeway mixer through blast groove type annulus.Above step is that liquid is opened one's mouth to the process of the unidirectional output liquid of liquid outlet from piston cylinder inner chamber through liquid stream.
Conical surface contact malleation opens film and connected elasticity spherical surface body, contact negative pressure open the positive and negative pressure surface that film and the water conservancy diversion annulus that matches form and contact one-way valve (as Fig. 1) with conical surface.Their performance characteristic is:
One-way function (as Fig. 1 and Fig. 2) under negative pressure condition: when there is negative pressure at liquid inlet place, just have negative pressure in one-way valve.Now have the taper negative pressure of stretchability to open film 1 inwardly to shrink under the effect of this negative pressure, it is made to be separated with the face corresponding to one-way valve fixed block, at this moment will produce a gap between which, make liquid from liquid-inlet by this gap by negative pressure sucking liquid flow ports to piston cylinder inner chamber.In order to make the seal of one-way valve permanent deformation not occur when mounted, this negative pressure is opened film and is inwardly shunk with an angle, and the angle of its vertical line (see figure 2) between 2-8 degree.And this negative pressure, can make the taper malleation of stretchability open film expand and elasticity spherical surface body stretch downwards, the result of its force action can make malleation open film to oppress tightly on the face of fixed block corresponding thereto, reach the object of sealing, just can not turn back in one-way valve at the liquid of one-way valve liquid outlet like this.This taper malleation opens film and corresponding face (see Fig. 2 inclined-plane combination part) keeps an angle (as shown in Figure 2) with Vertical direction position, this angle is between 1 to 20 degree, general use about 8 degree, to ensure when forming negative pressure in cylinder body, transverse force on inclined-plane much larger than vertical upward force, thus ensures that negative pressure forces malleation to open film and is close on corresponding fixed block inclined-plane (as shown in Figure 2).In sum, liquid can only to be opened one's mouth through liquid stream from liquid-inlet and be entered the inner chamber of piston cylinder, and the liquid in one-way valve liquid output pipe definitely can not turn back in one-way valve again, because now malleation is opened film and is tightly attached on corresponding fixed block face by suction function and makes this passage be closed.
One-way function (as Fig. 1 and Fig. 3) under barotropic condition: there is malleation at the place of opening one's mouth when liquid stream, will produce malleation in one-way valve.The negative pressure that first this malleation can be applied to stretchability under the guiding of guide ring is opened on the inner side surface of film, thus force negative pressure to be opened face that film is close to corresponding one-way valve fixed block being played the effect of seal fluid entry port, the liquid consequently in one-way valve does not turn back in liquid storage tank by liquid-inlet place.Here water conservancy diversion annulus plays very important leakproof effect because it can guide malleation first act on taper negative pressure open film inner side instead of at its end opening.As at end opening place, liquid impact force at positive pressure can pry open the connecting part of film and one-way valve, liquid is flowed out from liquid inlet from the gap between them, does not reach the object of reliable liquid one-way flowing.Test result shows, if not this water conservancy diversion circle ring part, when applying malleation, the gap that the liquid in one-way valve is opened between film and one-way valve stationary plane by negative pressure is sometimes flowed out from liquid inlet.Also just say, the negative pressure now in one-way valve opens film under the effect of malleation, and its closing function is unreliable.And under the effect of this malleation, having the taper malleation of stretchability to open film can be squeezed and inwardly shrink, simultaneously this malleation can be oppressed elasticity spherical surface body and moved up.The result of this double action can make malleation open film to be separated with the face of its corresponding fixed block, thus form a gap between the face of opening film and its corresponding fixed block in malleation, make liquid by completing unidirectional output along blast groove type annulus from the liquid outlet of one-way valve behind this gap.In sum, under the effect of malleation, liquid can only from liquid stream open one's mouth enter one-way valve after open film from the unidirectional output of the liquid outlet of one-way valve along malleation.
The utility model uses elasticity spherical surface body to open film to ensure to obtain reliable negative pressure and close and malleation is opened in conjunction with taper malleation, and uses taper negative pressure to open film to obtain reliable negative pressure in conjunction with water conservancy diversion annulus with guarantee and open and close with malleation.
Claims (1)
1. a positive and negative pressure surface contact liq one-way valve, it is characterized in that: comprise liquid entering hole (1) and liquid outlet (2), described liquid entering hole (1) connects negative pressure and opens film (3) outside, described negative pressure is opened film (3) inner side and is provided with water conservancy diversion annulus (4), described water conservancy diversion annulus (4) inner side is provided with the liquid stream be connected with piston port body and opens one's mouth (5), blast groove type cylinder ring (6) is provided with in described positive and negative pressure surface contact one-way valve, described blast groove type cylinder ring (6) outside is provided with malleation and opens film (7), elasticity spherical surface body (8) is also provided with in described positive and negative pressure surface contact one-way valve, the outer surface of described elasticity spherical surface body (8) is provided with malleation and opens film (7) and the concavo-convex annulus in location (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420789083.2U CN204328078U (en) | 2014-12-15 | 2014-12-15 | Positive and negative pressure surface contact liq one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420789083.2U CN204328078U (en) | 2014-12-15 | 2014-12-15 | Positive and negative pressure surface contact liq one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204328078U true CN204328078U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420789083.2U Withdrawn - After Issue CN204328078U (en) | 2014-12-15 | 2014-12-15 | Positive and negative pressure surface contact liq one-way valve |
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| CN (1) | CN204328078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455561A (en) * | 2014-12-15 | 2015-03-25 | 南通思锐生物科技有限公司 | Positive- and negative-pressure surface-contact liquid one-way valve |
-
2014
- 2014-12-15 CN CN201420789083.2U patent/CN204328078U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455561A (en) * | 2014-12-15 | 2015-03-25 | 南通思锐生物科技有限公司 | Positive- and negative-pressure surface-contact liquid one-way valve |
| CN104455561B (en) * | 2014-12-15 | 2016-08-24 | 南通思锐生物科技有限公司 | Positive and negative pressure surface contact liq check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150513 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |