CN205155260U - Seal and three sealed check valves of constituteing of soft seal with conical surface by gap is sealed - Google Patents
Seal and three sealed check valves of constituteing of soft seal with conical surface by gap is sealed Download PDFInfo
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- CN205155260U CN205155260U CN201520646142.5U CN201520646142U CN205155260U CN 205155260 U CN205155260 U CN 205155260U CN 201520646142 U CN201520646142 U CN 201520646142U CN 205155260 U CN205155260 U CN 205155260U
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- conical surface
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- sealing
- way valve
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Abstract
The utility model provides a case (1) comprises direction part, gap hermetic unit, conical surface hermetic unit, 5 parts of soft seal subtotal spring holder of seal and three sealed check valves of constituteing of soft seal with conical surface by gap is sealed, the check valve. The utility model discloses a check valve mainly comprises case (1), disk seat (2), valve body (3), spring (4), disk seat external seal circle (5) and case " O " type circle spare parts such as (6).
Description
Technical field the present invention relates in hydraulic system the one-way valve of a kind of oppositely long-time zero leakage controlling liquid flow direction.
Background technique one-way valve, as a kind of base components in hydraulic system, forms standard component covering extensive fields already.But hydraulic system has strict requirement for the clean of liquid, and crude oil wherein contains a large amount of impurity as a kind of liquid, as existing one-way valve is used as the parts controlling crude oil flow direction, can bring many beyond thought problems, the leakage wherein caused because of impurity embedding sealing face is one of subject matter.Generally adopt soft seal to be the best method addressed the leakage concern, but the maximum problem of soft seal is working life.
Model utility content gap sealing and conical surface seal and soft seal three seals are composed in series a kind of novel sealing structure of one-way valve, when liquid contains a large amount of impurity, can realize the function of oppositely long-time zero leakage.
A kind of one-way valve be made up of gap sealing and conical surface seal and soft seal three seals of particular content, is characterized in that: one-way valve is made up of three kinds of different sealing structures; Rightmost is guiding rib C1, C2, C3, C4 and damping seam B1, B2, B3, B4 of spool (1), guiding rib grows valve seat (2) sections, it is alternately that guiding rib and damping are stitched, the left side of guiding rib is the round platform shoulder of gap sealing, and the inner headed face of this shoulder and valve seat (2) is that the transition fit of microgap defines first and seals--gap sealing A1; Again left through a concave station, spool (1) has a conical surface, the conical surface on it and valve seat (2) defines second and seals--conical surface seal A2; There is a "O"-ring groove on the left side of the conical surface, is installed with spool "O"-ring (6) above and defines three seals--soft seal A3; The left side of "O"-ring groove is spring seat; The spool (1) of one-way valve of the present invention is made up of targeting part, gap sealing part, conical surface seal part, soft seal part and spring seat 5 part; One-way valve of the present invention is arranged in valve body (3), valve body (3) is liquid chunnel, spool (1) and valve seat (2) have blocked liquid chunnel, spring (4) makes spool (1) be pressed on valve seat (2), the exterior seal ring (5) being arranged on valve seat (2) seals the leakage-gap between valve seat (2) and valve body (3), and "O"-ring (6) is leak free characteristic for soft seal ensure that.
Three seals is that series seal respectively has its major function; wherein soft seal A3 is the primary seal of one-way valve; soft seal A3 has a segment distance from gap sealing A1; this distance should in 3 millimeters ~ 5 millimeter; such a construction ensures when soft seal A3 leaves sealing station; gap sealing A1 is still in seal operation position; flowing is only the tiny flow quantity of gap sealing A1 place seepage in one-way valve, the key element "O"-ring (6) protecting soft seal A3 not the washing away of liquid body high-pressure high-flow.Especially "O"-ring (6) has just left the moment of sealing surface, and now, all acted on sealed mouth by the pressure reduction of seal fluid, the flow velocity of liquid is high, can damage sealing surface very soon.Had the seal action of gap sealing A1, "O"-ring (6) has just left the moment of sealing surface, the sealed department bit flow of soft seal A3 be only the micro-leakage liquid of gap sealing A1.
Introduce the effect of conical surface seal A2 below, the front end of soft seal A3 adds a conical surface seal A2, sealing face also ensures sealing exact position and the pre compressed magnitude of soft seal A3 except the seal action of itself, "O"-ring (6) is made to be operated in static seal state, due to conical surface seal A2 gapless, effectively prevent the possibility that "O"-ring (6) is squeezed into seal clearance, improve working life equally.
Guiding rib C1, C2, C3, C4 of spool (1) ensure that the spool (1) of one-way valve can only move along the direction of the centerline parallel with valve seat (2), make two sealing surfaces of conical surface seal A2 can accurate contraposition; Damping seam B1, B2, B3, B4 ensure that flowing through the flowing velocity of liquid in one-way valve is unlikely to too fast.
Utilize the one-way valve be made up of gap sealing and conical surface seal and soft seal three seals of the present invention can also be used for making the unidirectional stop valve of zero leakage, Fig. 4 gives its concrete structure, after the right of spool (1) adds a valve opening push rod (7), in upper applying one power left of valve opening push rod (7), spool (1) backs down left by this power, make spool (1) leave sealing station, can be used for making the unidirectional stop valve of zero leakage.When valve opening push rod (7) is moved to the left; just spool (1) can be backed down; unidirectional stop valve is made to become liquid chunnel; same principle; when soft seal A3 leaves sealing station at valve opening push rod (7) under the effect of left movement; gap sealing A1 is still in working position; flowing is only the tiny flow quantity of gap sealing A1 place seepage in one-way valve, the impact of the key element "O"-ring (6) protecting soft seal A3 not liquid body high-pressure high-flow.
One-way valve of the present invention uses in the untreated oil line containing a large amount of impurity, through repeatedly opening and closing, all achieves zero seepage of oppositely sealing.
Fig. 1 in appended drawings be the one-way valve structures schematic diagram that is made up of gap sealing and conical surface seal and soft seal three seals of the present invention and sealing time phase diagram; Phase diagram when Fig. 2 is one-way valve of the present invention unlatching, shows with arrow the flow direction that liquid flows through one-way valve in figure, also designates the specific works position of damping seam simultaneously; Fig. 3 designate guiding rib and damping stitch between relative position.Fig. 4 depicts the application of one-way valve of the present invention on Mechanical course unidirectional stop valve, needs increase valve opening push rod (7) when being used as unidirectional stop valve.
Embodiment one-way valve of the present invention forms primarily of 6 kinds of primary components, and Fig. 1 depicts the particular location between them.Valve seat (2) is contained on valve body (3), the cylindrical of valve seat (2) is provided with 2 valve seat exterior seal rings (5); (2) are provided with taper sealing face to valve seat, spool (1) is installed in the inner circle of valve seat (2), round platform shoulder on spool (1) and the inner circle of 4 guiding rib C1, C2, C3, C4 and valve seat (2) are the transition fit having slight clearance, can play good seal action; Be provided with spring (4) at the Far Left of spool (1), spool (1) is tightly pressed on valve seat (2) by this spring at ordinary times, makes one-way valve be in sealing state.
The core operating principle of the reverse zero leakage of one-way valve of the present invention is the use of the soft sealing structure of the conical surface; The hard sealing of the conical surface mainly makes the stressed limit of "O"-ring (6) seamless, prevents "O"-ring (6) to be squeezed into the gap of low voltage terminal when pressurized deformation, and protection "O"-ring (6) is injury-free; Gap sealing major function ensures that spool (1) only has the fluid seepage of trace when the first 3 millimeters ~ 5 millimeters of strokes opened; the key element "O"-ring (6) protecting soft seal not the washing away of liquid body high-pressure high-flow; after one-way valve is opened completely; liquid in valve is damped seam current limliting again; the flowing fluid ratio flowing through "O"-ring (6) is flowed more lentamente, protects further and extend working life of "O"-ring (6).
Another use of the present invention is used to the Mechanical course unidirectional stop valve making reverse zero leakage, and Fig. 4 gives its concrete structure.When valve opening push rod (7) backs down spool (1) from right to left gradually, first conical surface seal A2 departs from sealing station, and the pressure reduction at valve two ends just acts on soft seal A3 and gap sealing A1, and now also no liquid is leaked; Along with spool (1) constantly moves to left, soft seal A3 has also departed from sealing station, the pressure reduction at valve two ends just all acts on gap sealing A1, due between soft seal A3 and gap sealing A1 can the space of receiving fluids very little, therefore, the liquid being entered this space by soft seal A3 is very small, simultaneously, gap sealing A1 also in action, so, also very little to the damage of "O"-ring (6); Only after spool (1) has been moved to the left 3 millimeters ~ 5 millimeters by valve opening push rod (7), after gap sealing A1 loses seal action, what large quantity of fluid could be subject to damping flows through in valve; Now, "O"-ring (6) washes away position away from liquid at high speed, and therefore, three road Series seal structures of the present invention can be used as a kind of liquid one-way sealing element of the zero leakage that can use the long lifetime.
Claims (5)
1. the one-way valve be made up of gap sealing and conical surface seal and soft seal three seals, is characterized in that: one-way valve is made up of three kinds of different sealing structures; Rightmost is guiding rib C1, C2, C3, C4 and damping seam B1, B2, B3, B4 of spool (1), guiding rib grows valve seat (2) sections, it is alternately that guiding rib and damping are stitched, the left side of guiding rib is the round platform shoulder of gap sealing, and the inner headed face of this shoulder and valve seat (2) is that the transition fit of microgap defines first and seals--gap sealing A1; Again left through a concave station, spool (1) has a conical surface, the conical surface on it and valve seat (2) defines second and seals--conical surface seal A2; There is a "O"-ring groove on the left side of the conical surface, is installed with spool "O"-ring (6) above and defines three seals--soft seal A3; The left side of "O"-ring groove is spring seat; The spool (1) of one-way valve of the present invention is made up of targeting part, gap sealing part, conical surface seal part, soft seal part and spring seat 5 part; One-way valve of the present invention is arranged in valve body (3), valve body (3) is liquid chunnel, spool (1) and valve seat (2) have blocked liquid chunnel, spring (4) makes spool (1) be pressed on valve seat (2), the exterior seal ring (5) being arranged on valve seat (2) seals the leakage-gap between valve seat (2) and valve body (3), and "O"-ring (6) is leak free characteristic for soft seal ensure that.
2. the one-way valve be made up of gap sealing and conical surface seal and soft seal three seals according to claim 1; it is characterized in that: soft seal A3 is the primary seal of one-way valve; soft seal A3 has a segment distance from gap sealing A1; this distance should in 3 millimeters ~ 5 millimeter; such a construction ensures when soft seal A3 leaves sealing station; gap sealing A1 is still in working position; flowing is only the tiny flow quantity of gap sealing A1 place seepage in one-way valve, the key element "O"-ring (6) protecting soft seal A3 not the washing away of liquid body high-pressure high-flow.
3. the one-way valve be made up of gap sealing and conical surface seal and soft seal three seals according to claim 1, it is characterized in that: the front end of soft seal A3 adds a conical surface seal A2, sealing face also ensures sealing exact position and the pre compressed magnitude of soft seal A3 except the seal action of itself, "O"-ring (6) is made to be operated in static seal state, due to conical surface seal A2 gapless, effectively prevent "O"-ring (6) and be squeezed into seal clearance, improve working life.
4. the one-way valve be made up of gap sealing and conical surface seal and soft seal three seals according to claim 1, is characterized in that: damping seam B1, B2, B3, B4 ensure that in one-way valve, the flowing velocity of liquid is unlikely to too fast.
5. the one-way valve be made up of gap sealing and conical surface seal and soft seal three seals according to claim 1, it is characterized in that: after the right of spool (1) adds a valve opening push rod (7), in upper applying one power left of valve opening push rod (7), spool (1) backs down left by this power, make spool (1) leave sealing station, can be used for making the unidirectional stop valve of zero leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520646142.5U CN205155260U (en) | 2015-08-26 | 2015-08-26 | Seal and three sealed check valves of constituteing of soft seal with conical surface by gap is sealed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520646142.5U CN205155260U (en) | 2015-08-26 | 2015-08-26 | Seal and three sealed check valves of constituteing of soft seal with conical surface by gap is sealed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205155260U true CN205155260U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520646142.5U Expired - Fee Related CN205155260U (en) | 2015-08-26 | 2015-08-26 | Seal and three sealed check valves of constituteing of soft seal with conical surface by gap is sealed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205155260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019214486A1 (en) * | 2018-05-08 | 2019-11-14 | 青岛海尔滚筒洗衣机有限公司 | Front-loading washing machine |
-
2015
- 2015-08-26 CN CN201520646142.5U patent/CN205155260U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019214486A1 (en) * | 2018-05-08 | 2019-11-14 | 青岛海尔滚筒洗衣机有限公司 | Front-loading washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180605 Address after: 215300 room 3, 398 Yisheng Road, Yushan Town, Kunshan, Jiangsu. Patentee after: Kunshan South Red Internet of things Technology Co., Ltd. Address before: 215300 Room 501, 2 building 398, Yisheng Road, Kunshan, Jiangsu. Patentee before: Kunshan Zhongci GongKong Technology Development Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20190826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |