CN103899796A - One-way valve - Google Patents
One-way valve Download PDFInfo
- Publication number
- CN103899796A CN103899796A CN201210590168.3A CN201210590168A CN103899796A CN 103899796 A CN103899796 A CN 103899796A CN 201210590168 A CN201210590168 A CN 201210590168A CN 103899796 A CN103899796 A CN 103899796A
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- CN
- China
- Prior art keywords
- axis hole
- piston
- valve body
- way valve
- shaft hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
- F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
- F16K15/028—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention aims to provide a one-way valve. The one-way valve is mainly used for resolving the problem that an existing one-way valve can not be communicated when flowing speed of fluid is overhigh. The one-way valve comprises a first valve body and a second valve body, wherein the center of the first valve body is provided with a first shaft hole in a stair shape, the center of the second valve body is provided with a second shaft hole in a stair shape, the diameter of the first shaft hole and the diameter of the second shaft hole are gradually increased towards the joint of the first valve body and the second valve body, and the diameter of the butt joint of the first shaft hole is equal to that of the butt joint of the second shaft hole. A piston which is in clearance fit with the first shaft hole and the second shaft hole is arranged, the end face of the piston is provided with a plurality of through holes or grooves, the first stair surface of the first shaft hole is provided with a first pipe which is cast to the first shaft hole in an integrated mode, and the outer circumferential surface of the first pipe is provided with a plurality of second through holes; the first through holes or the grooves are located in the end face, between the outer circumferential surface of the first pipe and the inner all of the butt joint of the first shaft hole, of the piston.
Description
Technical field
The present invention relates to a kind of one-way valve.
Background technique
One-way valve is the conventional element of pneumatic controlled hydraulic system, the one-way valve of prior art comprises the first valve body and the second valve body being connected with the first valve body, the central authorities of the first valve body and the second valve body have towards both junction diameters and increase gradually and be two sections of stair-stepping first axis holes and the second axis hole, the end-to-end joint part equal diameters of the first axis hole and the second axis hole, and be provided with an edge and open reeded piston, the end-to-end joint part Spielpassung of described piston and the first axis hole and the second axis hole.This one-way valve is generally that vertical placement used, under the effect of gravity, the piston not intermediate portion of recessing covers the first shaft hole diameter smaller part, the fluid flowing from top to bottom can not be circulated, and the fluid of stream holds up piston from the bottom up, fluid is flowed out through the gap between groove, the second axis hole end-to-end joint part and the piston end surface of the space between piston intermediate portion and the first axis hole end-to-end joint part end face, piston.This one-way valve can only use under plumbness, and if mobile rate of flow of fluid is too fast from the bottom up, can make piston intermediate portion seal the second axis hole end-to-end joint part, fluid is also flowed from the bottom up obstructed.
Summary of the invention
The object of the present invention is to provide the logical one-way valve smoothly of a kind of positive flow.
Technological scheme of the present invention is: a kind of one-way valve, comprise the first valve body and the second valve body, the central authorities of described the first valve body and the second valve body have towards both junction diameters and increase gradually the first stepped axis hole and the second axis hole, the end-to-end joint part equal diameters of described the first axis hole and the second axis hole, and be provided with the piston of Spielpassung with it, described piston end surface is provided with some the first through holes or groove, the first ladder surface of described the first axis hole is provided with the first body cast in block with it, and the first body outer peripheral surface is provided with several the second through holes; Described the first through hole or the groove piston end surface between outer circumferential face and the first axis hole end-to-end joint part inwall of the first body.
Adopt this technological scheme, owing to having the second through hole on the first body external peripheral surface, in the time that fluid flows from the bottom up, even if the flow velocity of fluid is enough to make piston to seal body end face, the first axis hole that fluid still can enter the first valve body through the second through hole on the first body outwards flows out.
The further technological scheme of the present invention is: on described the first body, be set with spring, one end of described spring props up the end face of piston, and the other end props up the first ladder surface of the first axis hole.
Adopt this technological scheme, make this one-way valve unidirectional blocking no longer only rely on the gravity of piston, thereby both can be adapted to vertically use state, the level that also can be adapted to is used state.
The further technological scheme of the present invention is: between the first ladder surface of the first axis hole and spring, be provided with pad.
Adopt this technological scheme: the cracking pressure that can adjust by increasing or reduce the quantity of pad this one-way valve.
The further technological scheme of the present invention is: the second-order tread of the second axis hole is provided with setting the second body cast in block with it, on described the second body, be set with spring, one end of described spring props up the end face of piston, and the other end props up the second-order tread of the second axis hole.
Adopt this technological scheme, because spring pushes up piston the end face that is pressed in the first body all the time, thereby guarantee that the fluid that flows to the first body from the second body can both circulate smoothly under any flow velocity.
The further technological scheme of the present invention is: between the second-order tread of the second axis hole and spring, be provided with pad.
Adopt this technological scheme, can increase the spring force on the second-order tread that is pressed on piston and the second axis hole.
Accompanying drawing explanation
The working state sectional drawing of Fig. 1 the first one-way valve
The sectional drawing of Fig. 2 the first valve body
The sectional drawing of Fig. 3 the second valve body
Fig. 4 piston front view
The working state sectional drawing of Fig. 5 the second one-way valve
The working state sectional drawing of the third one-way valve of Fig. 6
Embodiment
The first one-way valve as shown in Figure 1, comprises the first valve body 1 and the second valve body 2, and described the first valve body 1 and the second valve body 2 are threaded, and can certainly be fixedly connected with by screw.
As shown in Figure 2, the central authorities of the first valve body 1 have the first axis hole 11, the first axis holes 11 that increase gradually towards the first valve body 1 and the second valve body 2 junction diameters be two sections stepped.The first ladder surface 3 places of the first axis hole 11 are provided with cast solid with it, the first body 5 stretching out towards the first valve body 1 and the second valve body 2 junctions.On the outer peripheral surface of the first body 5, be furnished with several the second through holes 52.
As shown in Figure 3, the central authorities of the second valve body 2 have the second axis hole 22, the second axis holes 22 that increase gradually towards the first valve body 1 and the second valve body 2 junction diameters be three sections stepped.Second-order tread 4 places of the second axis hole 22 are provided with cast solid with it, the second body 6 stretching out towards the first valve body 1 and the second valve body 2 junctions.
As shown in Figure 1, the end-to-end joint part equal diameters of the first axis hole 11 and the second axis hole 22 is provided with piston 7 between the first body 5 end faces and the end face of the second body 6, the end-to-end joint part Spielpassung of described piston 7 and the first axis hole 11 and the second axis hole 22.The end face of piston 7 exceeds the second body 6 parts and is provided with circle first through hole 71.Can certainly show as Fig. 4, the end face of piston 7 exceeds the second body 6 and is provided with the groove 72 of a circle along piston 7 edge placement.Just can regulate and control the flow of one-way valve by changing the first through hole 71 of piston 7 or the size of groove 72.
This one-way valve be adapted to the first valve body 1 at upper, the second valve body 2 in lower vertical placement operating mode.Under normal circumstances, fluid is generally to flow to the first valve body 1 from the second valve body 2, as shown in Figure 1, fluid flows into from the diameter minimum portion of the second axis hole 22 of the first valve body 2, through the second body 6, overcome the deadweight of piston 7, make the end face of piston 7 leave the end face of the second body 6.Fluid, through the first through hole 71 or the groove 72 at piston 7 edges, enters the end-to-end joint part of the first axis hole 11.When rate of flow of fluid is less, while being not enough to make piston 7 to seal the first body 5 end face, a fluid part directly enters the first valve body 1 through the mouth of pipe of the first body 5, and another part enters the first valve body 1 through the second through hole 52 of the first body 5 outer circumferential faces.When rate of flow of fluid is larger, while being enough to make piston 7 to seal the first body 5 end face, all fluids all enter the first valve body 1 through the second through hole 52 of the first body 5 outer circumferential faces.
The second one-way valve as shown in Figure 5, it is different from the first one-way valve: on the first body 5, be set with spring 8, one end of spring 8 props up piston 7, and the other end props up the first axis hole 11 first ladder surfaces 3, and piston 7 is just pushed down the end face of the second body 6 under the effect of spring 8 restoring forces.This one-way valve no longer relies on the gravity of piston 7 but relies on the restoring force of spring 8 to make one-way valve unidirectional blocking, therefore can be adapted to the use state of horizontal positioned.The fluid that such the second valve body 2 normally flows to the first valve body 1 need to have certain flow rate, just can overcome the restoring force of spring 8, makes piston 8 depart from the end face of the second body 4, thereby guarantees that fluid flows to the first valve body 1 from the second valve body 2 normally.
Between spring 5 and the first ladder surface 3 of the first axis hole 11, be provided with pad 9, can normally flow to by increasing or reduce the quantity adjustment of pad 9 the required cracking pressure overcoming of fluid of the first valve body 1 from the second valve body 2.
The third one-way valve as shown in Figure 6, it is different from the first one-way valve: on the second body 6, be set with spring 8, one end of spring 8 props up piston 7, and the other end props up between the second-order tread 4 of second-order tread 4, the second axis holes 22 of the second axis hole 22 and spring 8 and is provided with pad 9.Piston 7 is pushed down the end face of the first body 5 under the effect of spring 8 restoring forces.Such one-way valve not only can be adapted to the use state of horizontal positioned, and because piston 7 is pressed on the end face of the first body 5 that has the second through hole 52 all the time, therefore regardless of the flow velocity of fluid, can guarantee that fluid flows to the first valve body 1 from the second valve body 2 normally.
Claims (5)
1. an one-way valve, comprise the first valve body (1) and the second valve body (2), the central authorities of described the first valve body (1) and the second valve body (2) have towards both junction diameters and increase gradually stepped the first axis hole (11) and the second axis hole (22), described the first axis hole (11) and the second axis hole (22) end-to-end joint part equal diameters, and be provided with the piston of Spielpassung (7) with it, described piston (7) end face is provided with some the first through holes (71) or groove (72), it is characterized in that:
First ladder surface (3) of described the first axis hole (11) is provided with the first body cast in block (5) with it, and the first body (5) outer peripheral surface is provided with several the second through holes (52);
Described the first through hole (71) or groove (72) are positioned at piston (7) end face between outer circumferential face and the first axis hole (11) end-to-end joint part inwall of the first body (3).
2. one-way valve according to claim 1, is set with spring (8) on described the first body (5), one end of described spring (8) props up the end face of piston (7), and the other end props up first ladder surface (3) of the first axis hole (11).
3. one-way valve according to claim 2, is provided with pad (9) between first ladder surface (3) of the first axis hole (11) and spring (8).
4. one-way valve according to claim 1, the second-order tread (4) of the second axis hole (22) is provided with setting the second body cast in block (6) with it, on described the second body (6), be set with spring (8), one end of described spring (8) props up the end face of piston (7), and the other end props up the second-order tread (4) of the second axis hole (22).
5. one-way valve according to claim 4, is provided with pad (9) between the second-order tread (4) of the second axis hole (22) and spring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210590168.3A CN103899796B (en) | 2012-12-31 | 2012-12-31 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210590168.3A CN103899796B (en) | 2012-12-31 | 2012-12-31 | Check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899796A true CN103899796A (en) | 2014-07-02 |
| CN103899796B CN103899796B (en) | 2016-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210590168.3A Active CN103899796B (en) | 2012-12-31 | 2012-12-31 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103899796B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662212A (en) * | 2017-03-31 | 2018-10-16 | 中国石油天然气股份有限公司 | One-way valve |
| CN110527991A (en) * | 2019-09-25 | 2019-12-03 | 苏州市格范五金塑胶工业有限公司 | EN liquid medicine adds system automatically |
| CN112020623A (en) * | 2018-04-23 | 2020-12-01 | 戴科知识产权控股有限责任公司 | Check valve insert defining an open position and check valve having a check valve insert |
| JP2021156304A (en) * | 2020-03-25 | 2021-10-07 | 株式会社鷺宮製作所 | Check valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599432A1 (en) * | 1992-11-24 | 1994-06-01 | MANNESMANN Aktiengesellschaft | Check valve with a throttle device |
| CN2763457Y (en) * | 2004-12-29 | 2006-03-08 | 大港油田集团有限责任公司 | Normal open check valve in bottom of whipstock |
| CN2893351Y (en) * | 2006-04-13 | 2007-04-25 | 黄伟民 | One-way valve |
| CN101446476A (en) * | 2008-12-29 | 2009-06-03 | 宋玉法 | Vacuum self-circulation liquid cooling system |
| CN201730982U (en) * | 2010-07-02 | 2011-02-02 | 宁波市鄞州亚大汽车管件有限公司 | Gas control apparatus for braking system of truck |
| CN202300625U (en) * | 2011-10-25 | 2012-07-04 | 北汽福田汽车股份有限公司 | One-way valve and car engine cooling system as well as car |
| CN203009928U (en) * | 2012-12-31 | 2013-06-19 | 中钢集团衡阳重机有限公司 | One-way valve |
-
2012
- 2012-12-31 CN CN201210590168.3A patent/CN103899796B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599432A1 (en) * | 1992-11-24 | 1994-06-01 | MANNESMANN Aktiengesellschaft | Check valve with a throttle device |
| CN2763457Y (en) * | 2004-12-29 | 2006-03-08 | 大港油田集团有限责任公司 | Normal open check valve in bottom of whipstock |
| CN2893351Y (en) * | 2006-04-13 | 2007-04-25 | 黄伟民 | One-way valve |
| CN101446476A (en) * | 2008-12-29 | 2009-06-03 | 宋玉法 | Vacuum self-circulation liquid cooling system |
| CN201730982U (en) * | 2010-07-02 | 2011-02-02 | 宁波市鄞州亚大汽车管件有限公司 | Gas control apparatus for braking system of truck |
| CN202300625U (en) * | 2011-10-25 | 2012-07-04 | 北汽福田汽车股份有限公司 | One-way valve and car engine cooling system as well as car |
| CN203009928U (en) * | 2012-12-31 | 2013-06-19 | 中钢集团衡阳重机有限公司 | One-way valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662212A (en) * | 2017-03-31 | 2018-10-16 | 中国石油天然气股份有限公司 | One-way valve |
| CN112020623A (en) * | 2018-04-23 | 2020-12-01 | 戴科知识产权控股有限责任公司 | Check valve insert defining an open position and check valve having a check valve insert |
| CN112020623B (en) * | 2018-04-23 | 2023-08-15 | 戴科知识产权控股有限责任公司 | Check valve insert defining an open position and check valve having a check valve insert |
| CN110527991A (en) * | 2019-09-25 | 2019-12-03 | 苏州市格范五金塑胶工业有限公司 | EN liquid medicine adds system automatically |
| JP2021156304A (en) * | 2020-03-25 | 2021-10-07 | 株式会社鷺宮製作所 | Check valve |
| JP7232209B2 (en) | 2020-03-25 | 2023-03-02 | 株式会社鷺宮製作所 | non-return valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103899796B (en) | 2016-05-18 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180625 Address after: No. 1, Dongfeng Road, Zhu Hui District, Hengyang, Hunan Patentee after: China Steel Group Hengyang Machinery Co., Ltd. Address before: No. 1, Dongfeng Road, Zhu Hui District, Hengyang, Hunan Patentee before: Sinosteel Hengyang Machinery Co., Ltd. |
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| TR01 | Transfer of patent right |