CN203009928U - One-way valve - Google Patents
One-way valve Download PDFInfo
- Publication number
- CN203009928U CN203009928U CN 201220747183 CN201220747183U CN203009928U CN 203009928 U CN203009928 U CN 203009928U CN 201220747183 CN201220747183 CN 201220747183 CN 201220747183 U CN201220747183 U CN 201220747183U CN 203009928 U CN203009928 U CN 203009928U
- Authority
- CN
- China
- Prior art keywords
- axis hole
- piston
- valve body
- shaft hole
- way valve
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 22
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model aims to provide a one-way valve and mainly aims at solving the technical problems that the conventional one-way valves cannot be communicated when the flowing speed of a fluid is too high. The one-way valve comprises a first valve body and a second valve body, wherein a first step-shaped shaft hole and a second step-shaped shaft hole are respectively formed in the centers of the first valve body and the second valve body; the diameters of the first step-shaped shaft hole and the second step-shaped shaft hole are gradually increased towards the part where the first valve body is joint with the second valve body; the diameters of the abutting parts of the first shaft hole and the second shaft hole are the same; a piston in match with the gap between the first shaft hole and the second shaft hole is arranged; a plurality of through holes or grooves are formed in the end surface of the piston; a first tube body is arranged on the first step surface of the first shaft hole; the first tube body is integrally cast with the first stair surface; a plurality of second through holes are formed in the outer circumferential surface of the first tube body; and the first through holes or the grooves are positioned at the piston end surface between the outer circumferential surface of the first tube body and the inner wall of the abutting part of the first shaft hole.
Description
Technical field
The utility model relates to a kind of one-way valve.
Background technique
One-way valve is pneumatic controlled hydraulic system element commonly used, the one-way valve of prior art comprises the first valve body and the second valve body that is connected with the first valve body, the central authorities of the first valve body and the second valve body have to increase gradually towards both junction diameters and are two sections 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 the placement used, under action of gravitation, the piston not intermediate portion of recessing covers the first shaft hole diameter smaller part, make the fluid that flows from top to bottom not circulate, and the fluid of stream holds up piston from the bottom up, makes fluid through the gap outflow 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 the rate of flow of fluid that flows from the bottom up too fast, can make the piston intermediate portion seal the second axis hole end-to-end joint part, make fluid also flow from the bottom up obstructed.
The model utility content
The purpose of this utility model is to provide a kind of positive flow logical one-way valve smoothly.
The technical solution of the utility model 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 the outer circumferential face of the first body and the first axis hole end-to-end joint part inwall.
Adopt this technological scheme, owing to having the second through hole on the first body external peripheral surface, when fluid flowed from the bottom up, even the flow velocity of fluid is enough to make piston to seal the body end face, the first axis hole that fluid still can enter through the second through hole on the first body the first valve body outwards flowed out.
The further technological scheme of the utility model is: be set with spring on described the first body, an 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 utility model is: be provided with pad between the first ladder surface of the first axis hole and spring.
Adopt this technological scheme: can adjust by the quantity that increases or reduce pad the cracking pressure of this one-way valve.
The further technological scheme of the utility model is: the second-order tread of the second axis hole is provided with setting the second body cast in block with it, be set with spring on described the second body, 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, due to spring, piston is pushed up all the time the end face that is pressed in the first body, 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 utility model is: be provided with pad between the second-order tread of the second axis hole and spring.
Adopt this technological scheme, can increase the spring force on the second-order tread that is pressed on piston and the second axis hole.
Description of drawings
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 that stretches out towards the first valve body 1 and the second valve body 2 junctions.Be furnished with several the second through holes 52 on the outer peripheral surface of the first body 5.
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 that stretches 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 end face of the first body 5 end faces and 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 a circle along the groove 72 of piston 7 edge placement.Just can regulate and control the flow of one-way valve by the first through hole 71 of change 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 section 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 enters the end-to-end joint part of the first axis hole 11 through the first through hole 71 or the groove 72 at piston 7 edges.When rate of flow of fluid is less, when 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, when 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, what it was different from the first one-way valve is: be set with spring 8 on the first body 5, 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 the 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 break away 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.
Be provided with pad 9 between the first ladder surface 3 of spring 5 and the first axis hole 11, can normally flow to the required cracking pressure that overcomes of fluid of the first valve body 1 from the second valve body 2 by the quantity adjustment that increases or reduce pad 9.
The third one-way valve as shown in Figure 6, what it was different from the first one-way valve is: be set with spring 8 on the second body 6, 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 be pressed in all the time due to piston 7 on the end face of the first body 5 that has the second through hole 52, 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. 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 the outer circumferential face of the first body (3) and piston (7) end face between the inwall of the first axis hole (11) end-to-end joint part.
2. one-way valve according to claim 1, be set with spring (8) on described the first body (5), and an 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, be 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, be set with spring (8) on described the second body (6), 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, be 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 |
|---|---|---|---|
| CN 201220747183 CN203009928U (en) | 2012-12-31 | 2012-12-31 | One-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220747183 CN203009928U (en) | 2012-12-31 | 2012-12-31 | One-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009928U true CN203009928U (en) | 2013-06-19 |
Family
ID=48601525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220747183 Expired - Fee Related CN203009928U (en) | 2012-12-31 | 2012-12-31 | One-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009928U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899796A (en) * | 2012-12-31 | 2014-07-02 | 中钢集团衡阳重机有限公司 | One-way valve |
| CN111074861A (en) * | 2019-12-24 | 2020-04-28 | 湖北省水利水电规划勘测设计院 | A water control type biological environmental protection water channel |
-
2012
- 2012-12-31 CN CN 201220747183 patent/CN203009928U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899796A (en) * | 2012-12-31 | 2014-07-02 | 中钢集团衡阳重机有限公司 | One-way valve |
| CN111074861A (en) * | 2019-12-24 | 2020-04-28 | 湖北省水利水电规划勘测设计院 | A water control type biological environmental protection water channel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103899796A (en) | One-way valve | |
| CN203009928U (en) | One-way valve | |
| CN103291679B (en) | Low-hysteresis overflow valve | |
| CN105650312B (en) | A kind of New Horizontal Well automatic water control valve | |
| CN204267803U (en) | Pilot operated check valve | |
| CN104019074A (en) | Hydraulic one-way valve | |
| CN104929575A (en) | Phase-controlled valve | |
| CN203868558U (en) | Metal sealing type hydraulic hinge joint | |
| CN108278376A (en) | A kind of easily controllable tubing valve | |
| CN203926924U (en) | The throttling stop valve of overlapping P mouth | |
| CN202867950U (en) | Thin film one-way valve | |
| CN203757229U (en) | Articulated pipe connector for hydraulic pipeline | |
| CN208040358U (en) | A kind of switchable water control device and oil extraction system | |
| CA2911725C (en) | Fluid control device and fluid control system | |
| CN204252882U (en) | An anti-falling object pressure transmission ball seat | |
| CN204459338U (en) | Reduction valve | |
| CN204300440U (en) | Super-pressure hydraulic control check valve | |
| CN204729687U (en) | Lifting check valve | |
| CN204703870U (en) | Perforation tubular column | |
| CN202545926U (en) | Pressure-regulating valve | |
| CN106948780A (en) | A kind of screw drilling tool motor operting differential pressure control valve and its control method | |
| CN103953733B (en) | Novel stop valve | |
| CN105570504B (en) | A kind of adjustable flow-limiting valve | |
| CN204113154U (en) | A kind of movable sealing washing pipe assembly | |
| CN106672844A (en) | Hydraulic jack base convenient to repair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |