CN204610976U - Lead under one one-way valve - Google Patents
Lead under one one-way valve Download PDFInfo
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- CN204610976U CN204610976U CN201520326815.9U CN201520326815U CN204610976U CN 204610976 U CN204610976 U CN 204610976U CN 201520326815 U CN201520326815 U CN 201520326815U CN 204610976 U CN204610976 U CN 204610976U
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- valve
- spool
- valve seat
- way valve
- lead under
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Abstract
The utility model leads under providing one one-way valve, comprise valve seat, valve bonnet, spool, spring and pad, described spool bottom is provided with guide vane, the cylindrical of guide vane and the endoporus Spielpassung of valve seat, the sealing surface of described valve seat is the conical surface, the sealing surface of described spool is sphere, and described valve seat and spool are on same central axis.The lower guiding one-way valve good seal performance that the utility model provides, conveyance capacity is strong, reliability is high, durability is long.
Description
Technical field
The utility model belongs to valve technology field, and lead under being specifically related to one one-way valve.
Background technique
Metering pump is a kind of special shape of positive displacement reciprocating pump, it has the function carrying liquid material exactly, pro rata, pump valve is the vitals of metering pump, very important impact is had on metering pump performance, the pump valve of metering pump is divided into deadweight valve and spring valve two kinds usually: deadweight valve mostly is ball valve, ball valve inertial force is large, is therefore only applicable to reciprocal time less, the little and pump that fluid viscosity is not high of flow; Spring valve adds spring load effect, weaken the impact of valve plate motion inertia force, spring valve is mainly divided into flap type and tapered valve etc. according to sealing surface pattern: the sealing surface of flap type is plane contact, and sealing surface is larger, sealability is not good, is used for the pump that row pressure is lower; The sealing surface of tapered valve adopts conical surface seal, its sealability is better than flap type, but its sealing surface is not as ball valve " linear sealing ", when using under high pressure or ultrahigh pressure occasion, volumetric efficiency and the measuring accuracy of pump are low, along with the development in market, developing the pump valve that can simultaneously use on high pressure, high viscosity and high-capacity pump becomes urgent demand.
Model utility content
Not enough for prior art, the lower guiding one-way valve that the utility model provides a kind of good seal performance, conveyance capacity is strong, reliability is high and durability is long.
For realizing goal of the invention, the utility model by the following technical solutions:
Lead under one one-way valve, comprise valve seat, valve bonnet, spool, spring and pad, described spool bottom is provided with guide vane, the cylindrical of guide vane and the endoporus Spielpassung of valve seat, the sealing surface of described valve seat is the conical surface, the sealing surface of described spool is sphere, and described valve seat and spool are on same central axis, and this sealing structure performance is good.
Be preferably, described valve bonnet is installed on valve seat by Internal hole positioning, and described pad is loaded in the groove of valve seat, and described valve bonnet and valve seat are coordinated by the sealing configuration of tenon in the face of groove face, and this structure combines firmly.
Be preferably, described spool top is provided with axle stretch end, and described valve bonnet endoporus is provided with inner convex platform, leaves space between the two, and inner convex platform plays lift restriction.
Be preferably, described guide vane is the wing-shaped structure of three half moon groove, and guide vane plays leading role, can not tilt when spool is closed.
Be preferably, the sealing surface of described valve seat is the conical surface of 90 °, and have good sealing, conveyance capacity is strong.
Be preferably, described spring upper end face contacts with valve bonnet endoporus, and underpart and spool, by shaft shoulder excircle orientation, ensure that less closing velocity and close retardation angle.
The beneficial effect of a kind of lower guiding one-way valve of the present utility model is:
(1) add spring load effect, ensure that less closing velocity and close retardation angle, reducing impact and return loss, be applicable to high viscosity medium;
(2) runner is level and smooth, fluid resistance is little, conveyance capacity is strong;
(3) guide vane positioning and guiding is good, and during closedown, spool can not tilt, good seal performance;
(4) guide vane end face is half moon groove, spool good rigidity, and sealing surface contact stress is little, is applicable to the situation of high pressure, ultrahigh pressure.
Accompanying drawing explanation
Fig. 1 is the sectional view of a kind of lower guiding one-way valve of the utility model;
In figure: 1. valve seat, 2. pad, 3. spool, 4. spring, 5. valve bonnet, 6. guide vane, 7. axle stretch end, 8. inner convex platform.
Fig. 2 is the guide vane cross-sectional view shown in Fig. 1.
Embodiment
The one-way valve that leads under one of the present utility model is further described by embodiment below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, lead under one one-way valve, comprise valve seat 1, pad 2, spool 3, spring 4 and valve bonnet 5, described spool 3 bottom is provided with guide vane 6, the cylindrical of guide vane 6 and the endoporus Spielpassung of valve seat 1, the sealing surface of described valve seat 1 is the conical surface, the sealing surface of described spool 3 is sphere, described valve seat 1 and spool 3 are on same central axis, described valve bonnet 5 is installed on valve seat 1 by Internal hole positioning, described pad 2 is loaded in the groove of valve seat 1, described valve bonnet 5 and valve seat 1 are coordinated by the sealing configuration of tenon in the face of groove face, described spool 3 top is provided with axle stretch end 7, described valve bonnet 5 endoporus is provided with inner convex platform 8, leave space between the two, described guide vane 6 is the wing-shaped structure of three half moon groove, the sealing surface of described valve seat 1 is the conical surface of 90 °, described spring 4 upper-end surface contacts with valve bonnet 5 endoporus, underpart and spool 3 are by shaft shoulder excircle orientation.
During work, along with the to-and-fro motion of metering pump piston, liquid enters lower guiding one-way valve, and spool 3 is opened under the effect of fluid pressure, after spool 3 is opened to certain altitude, the axle stretch end 7 of spool 3 contacts with the inner convex platform 8 of valve bonnet 5, the axle stretch end 7 that inner convex platform 8 limits spool 3 continues to raise, and spool 3 is closed under spring force and Gravitative Loads, so periodically opens and closes, alternately open or block the passage of active chamber between import and outlet, realize suction and the discharge process of liquid.
The foregoing is only specific embodiment of the utility model, but structure characteristic of the present utility model is not limited thereto, the utility model may be used on similar product, any those skilled in the art is in field of the present utility model, and the change done or modification are all encompassed among the scope of the claims of the present utility model.
Claims (6)
1. lead under one kind one-way valve, comprise valve seat, valve bonnet, spool, spring and pad, it is characterized in that: described spool bottom is provided with guide vane, the cylindrical of guide vane and the endoporus Spielpassung of valve seat, the sealing surface of described valve seat is the conical surface, the sealing surface of described spool is sphere, and described valve seat and spool are on same central axis.
2. lead under as claimed in claim 1 one-way valve, and it is characterized in that: described valve bonnet is installed on valve seat by Internal hole positioning, described pad is loaded in the groove of valve seat, and described valve bonnet and valve seat are coordinated by the sealing configuration of tenon in the face of groove face.
3. lead under as claimed in claim 1 one-way valve, and it is characterized in that: described spool top is provided with axle stretch end, described valve bonnet endoporus is provided with inner convex platform, leaves space between the two.
4. lead under as claimed in claim 1 one-way valve, it is characterized in that: described guide vane is the wing-shaped structure of three half moon groove.
5. lead under as claimed in claim 1 one-way valve, it is characterized in that: the sealing surface of described valve seat is the conical surface of 90 °.
6. lead under as claimed in claim 1 one-way valve, and it is characterized in that: described spring upper end face contacts with valve bonnet endoporus, underpart and spool pass through shaft shoulder excircle orientation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326815.9U CN204610976U (en) | 2015-05-20 | 2015-05-20 | Lead under one one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326815.9U CN204610976U (en) | 2015-05-20 | 2015-05-20 | Lead under one one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610976U true CN204610976U (en) | 2015-09-02 |
Family
ID=53963543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520326815.9U Active CN204610976U (en) | 2015-05-20 | 2015-05-20 | Lead under one one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204610976U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443790A (en) * | 2015-12-25 | 2016-03-30 | 大连大高阀门股份有限公司 | Adjustable double wedge disc |
| CN107975606A (en) * | 2017-11-27 | 2018-05-01 | 高益松 | The connection valve of foam gun |
-
2015
- 2015-05-20 CN CN201520326815.9U patent/CN204610976U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443790A (en) * | 2015-12-25 | 2016-03-30 | 大连大高阀门股份有限公司 | Adjustable double wedge disc |
| CN107975606A (en) * | 2017-11-27 | 2018-05-01 | 高益松 | The connection valve of foam gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |