CN207621429U - A kind of porous overcurrent is slow to open check-valves - Google Patents
A kind of porous overcurrent is slow to open check-valves Download PDFInfo
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- CN207621429U CN207621429U CN201721665305.XU CN201721665305U CN207621429U CN 207621429 U CN207621429 U CN 207621429U CN 201721665305 U CN201721665305 U CN 201721665305U CN 207621429 U CN207621429 U CN 207621429U
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Abstract
The utility model provides that a kind of porous overcurrent is slow to open check-valves, belong to valve field, including valve body, the section part of valve body is equipped with big valve flap, the rear end of big valve flap is equipped with big spring and spring bearer plate, big spring is located between spring bearer plate and big valve flap and both ends contact setting with the two respectively, the rear end of big valve flap is equipped with the cavity of protrusion, small flap and little spring are equipped in cavity, little spring is located between small flap and the rear end on the inside of cavity and contacts setting with the two, the circumferential position of cavity is equipped with multiple outlets, the middle part of small flap big valve flap is equipped with multiple deflector holes, small flap is correspondingly arranged with multiple deflector holes, the face domain that multiple deflector holes are constituted is located in small flap area, the internal diameter of big spring is identical as the outer diameter of cavity and the tangent setting of the two.The utility model can reduce media impingement, and the response time is fast.
Description
Technical field
The utility model belongs to valve field, is related to that a kind of porous overcurrent is slow to open check-valves.
Background technology
The main function of check-valves is to prevent medium from flowing backwards, and check-valves is also known as non-return valve, counterbalance valve or check valve, non-return
Valve belongs to automatic valve, automatically turns on or closes by the power of media flow in pipeline.Check-valves opening and closing element -- flap is then
It moves up and down along valve body middle chamber axis, check-valves is opened by medium power, and flap uses spring loads, quick closedown that can have
Effect ground reduces water hammer pressure, and good seal performance, it has, and small, light-weight, fluid resistance is small, keying is flexible, endurance etc.
Advantage, during use, medium to valve have certain percussion, valve directly directly affect its use the longevity
Life.
Utility model content
Problem to be solved in the utility model is to be that media impingement, response time much faster hole mistake can be reduced by providing one kind
Stream is slow to open check-valves.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of porous overcurrent is slow to open check-valves,
Including valve body, the section part of the valve body is equipped with big valve flap, and the rear end of the big valve flap is equipped with big spring and spring bearer plate, described
Big spring is located between the spring bearer plate and the big valve flap and both ends contact setting with the two respectively, after the big valve flap
Cavity of the end equipped with protrusion, is equipped with small flap and little spring in the cavity, the little spring be located at the small flap with it is described
Setting is contacted between rear end on the inside of cavity and with the two, the circumferential position of the cavity is equipped with multiple outlets, the small flap
The middle part of the big valve flap is equipped with multiple deflector holes, and the small flap is correspondingly arranged with the multiple deflector hole, the multiple to lead
The face domain that discharge orifice is constituted is located in the small flap area, and the internal diameter of the big spring is identical as the outer diameter of the cavity and the two
Tangent setting.
Further, the axis of the big spring is arranged perpendicular to the spring bearer plate, the axis of the little spring with it is big
Described in the axis coaxle setting of spring.
Further, the quantity of the outlet is multiple and is uniformly arranged up and down, the axis exported along the cavity
Line is uniformly arranged.
Further, the diameter of the outlet is less than the diameter of the deflector hole, and the quantity of the outlet is more than described lead
The quantity of discharge orifice.
Further, the outer ring of the big spring and little spring is equipped with nitriding layer.
Further, guide post is equipped between the big valve flap and the spring bearer plate, the guide post falls in the bullet
Spring pressing plate is arranged, and the axis of the guide post and the axis coaxle of the big spring are arranged.
Compared with prior art, the utility model has the advantages and positive effects of：1, the utility model is in medium flow field
When crossing valve, when pressure medium is smaller, the open-top small flap of medium, from the deflector hole overcurrent of big valve flap；When pressure medium is gradual
When raising, the open-top big valve flap of medium, at this time together with the deflector hole of big valve flap, multiple flow passages full-bore overcurrent not only makes medium
Circulation area increases, and plays the role of surge protection of the medium to valve, the effect for making valve accomplish slowly to open；2, work as Jie
When matter flows back, since the response time that multiple flow passages close valve is short, it can accomplish the effect closed rapidly, more general check-valves
Effect is good；3, when valve working, due to medium can multiple flow passages overcurrent, to a certain extent, this valve can also do regulating valve use, expand
The big use scope of valve, improves the practical value of valve.
Description of the drawings
The attached drawing for constituting the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type are not constituted improper limits to the present invention for explaining the utility model.
In attached drawing：
Fig. 1 is a kind of slow structural schematic diagram for opening check-valves of porous overcurrent of the utility model.
Reference numeral：
1- valve bodies；2- spring bearer plates；3- big springs；The small flaps of 4-；5- little springs；6- big valve flaps；61- deflector holes；7- is led
Xiang Zhu；8- is exported.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more this feature.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
It elaborates below in conjunction with the accompanying drawings to specific embodiment of the utility model.
As shown in Figure 1, the utility model, which is that a kind of porous overcurrent is slow, opens check-valves, including valve body 1, the section part of valve body 1
Equipped with big valve flap, the rear end of big valve flap is equipped with big spring 3 and spring bearer plate 2, big spring 3 be located at spring bearer plate 2 and big valve flap it
Between and both ends contact setting with the two respectively, the rear end of big valve flap is equipped with the cavity of protrusion, and small flap 4 and small bullet are equipped in cavity
Spring 5, little spring 5 are located between small flap 4 and the rear end on the inside of cavity and contact setting with the two, and the circumferential position of cavity is equipped with
The middle part of multiple outlets 8,4 big valve flap of small flap is equipped with multiple deflector holes 61, and small flap 4 is correspondingly arranged with multiple deflector holes 61,
The face domain that multiple deflector holes 61 are constituted is located in 4 area of small flap, and the internal diameter of big spring 3 is identical as the outer diameter of cavity and the two phase
Setting is cut, cavity has guiding role to big spring 3.
Preferably, the axis of big spring 3 is arranged perpendicular to spring bearer plate 2, the axis of the axis and big spring 3 of little spring 5
Coaxial arrangement, the use of time, big spring 3 and little spring 5 are in preloading condition；Preferably, big spring 3 and little spring 5 is outer
Circle is equipped with nitriding layer, promotes service life.
Preferably, the quantity for exporting 8 is multiple and is uniformly arranged up and down that outlet 8 is uniformly arranged along the axis of cavity.
Preferably, export 8 diameter be less than deflector hole 61 diameter, export 8 quantity be more than deflector hole 61 quantity.
Preferably, guide post is equipped between big valve flap and spring bearer plate 2, guide post falls in the setting of spring bearer plate 2, guide post
The axis coaxle of axis and big spring 3 be arranged, the setting of guide post advantageously ensures that the stability in big valve flap operational process
And accuracy, it prevents crooked.
During valve is run, when medium flows through valve, when pressure medium is smaller, the open-top small flap 4 of medium,
From 61 overcurrent of deflector hole of big valve flap；When pressure medium gradually rises, the open-top big valve flap of medium, at this time with the water conservancy diversion of big valve flap
Together, multiple flow passages full-bore overcurrent not only increases the circulation area of medium, and plays medium to valve for hole 61 and outlet 8
Surge protection effect, the effect for making valve accomplish slowly to open closes valve due to multiple flow passages when medium back flow
Response time is short, can accomplish the effect closed rapidly, and more general check-valves effect is good, and the valve of this structure can be horizontally mounted or hang down
Straight installation, is suitable for water supply, draining, fire-fighting, HVAC system, it is mountable at exit of pump 8, to prevent medium from flowing backwards and water
Hammer the damage to water pump into shape.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should all still belong within the patent covering scope of the utility model.
Claims (6)
1. a kind of porous overcurrent is slow to open check-valves, it is characterised in that：Including valve body, the section part of the valve body is equipped with big valve flap,
The rear end of the big valve flap is equipped with big spring and spring bearer plate, the big spring be located at the spring bearer plate and the big valve flap it
Between and both ends contact setting with the two respectively, the rear end of the big valve flap is equipped with the cavity of protrusion, and small valve is equipped in the cavity
Valve and little spring, the little spring are located between the small flap and the rear end on the inside of the cavity and are contacted with the two setting,
The circumferential position of the cavity is equipped with multiple outlets, and the middle part of big valve flap described in the small flap is equipped with multiple deflector holes, described
Small flap is correspondingly arranged with the multiple deflector hole, and the face domain that the multiple deflector hole is constituted is located in the small flap area,
The internal diameter of the big spring is identical as the outer diameter of the cavity and the tangent setting of the two.
2. a kind of porous overcurrent according to claim 1 is slow to open check-valves, it is characterised in that：The axis of the big spring hangs down
Directly it is arranged in the spring bearer plate, described in the axis coaxle setting of the axis and big spring of the little spring.
3. a kind of porous overcurrent according to claim 1 is slow to open check-valves, it is characterised in that：The quantity of the outlet is more
A and be uniformly arranged up and down, the outlet is uniformly arranged along the axis of the cavity.
4. a kind of porous overcurrent according to claim 1 is slow to open check-valves, it is characterised in that：The diameter of the outlet is less than
The diameter of the deflector hole, the quantity of the outlet are more than the quantity of the deflector hole.
5. a kind of porous overcurrent according to claim 1 is slow to open check-valves, it is characterised in that：The big spring and little spring
Outer ring be equipped with nitriding layer.
6. a kind of porous overcurrent according to claim 1 is slow to open check-valves, it is characterised in that：The big valve flap and the bullet
Be equipped with guide post between spring pressing plate, the guide post falls in spring bearer plate setting, the axis of the guide post with it is described big
The axis coaxle of spring is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721665305.XU CN207621429U (en) | 2017-12-05 | 2017-12-05 | A kind of porous overcurrent is slow to open check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721665305.XU CN207621429U (en) | 2017-12-05 | 2017-12-05 | A kind of porous overcurrent is slow to open check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207621429U true CN207621429U (en) | 2018-07-17 |
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ID=62825350
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721665305.XU Active CN207621429U (en) | 2017-12-05 | 2017-12-05 | A kind of porous overcurrent is slow to open check-valves |
Country Status (1)
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|---|---|
| CN (1) | CN207621429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307091A (en) * | 2018-09-26 | 2019-02-05 | 河北博路天宝石油设备制造有限公司 | A kind of explosion-proof type valve of oil equipment |
-
2017
- 2017-12-05 CN CN201721665305.XU patent/CN207621429U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307091A (en) * | 2018-09-26 | 2019-02-05 | 河北博路天宝石油设备制造有限公司 | A kind of explosion-proof type valve of oil equipment |
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