CN206988483U - A kind of self sealss Y type check-valves - Google Patents
A kind of self sealss Y type check-valves Download PDFInfo
- Publication number
- CN206988483U CN206988483U CN201720688714.5U CN201720688714U CN206988483U CN 206988483 U CN206988483 U CN 206988483U CN 201720688714 U CN201720688714 U CN 201720688714U CN 206988483 U CN206988483 U CN 206988483U
- Authority
- CN
- China
- Prior art keywords
- flap
- bonnet
- valve body
- guiding rib
- guide sleeve
- 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
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- Valve Housings (AREA)
- Check Valves (AREA)
Abstract
This practicality discloses a kind of self sealss Y type check-valves, including the valve body in Y-shaped, the flap being arranged at valve body center；The upper top of chamber of valve body is set as the bonnet being oriented to, and spring is provided with the upper cavity space between the bonnet and the flap, and the bottom of the bonnet is provided with the guide sleeve with the bonnet in integrative-structure；The flap top is provided with the guiding rib being slidably matched with the guide sleeve；The connected entrance for being laid in flap top and being connected with the valve outlet is provided with the lower end of the guiding rib.In flap upper design, connected entrance, connected entrance make the epicoele of flap be connected with valve outlet to the utility model, when flap is risen with falling after rise, reduce shock and vibration, circulating resistance is small, and flap is reached total travel；Devise the guide sleeve and guiding rib structure of mutual cooperation, built-up welding iron-base hard alloy coating on guiding rib, valve body epicoele guide sleeve is made of stainless steel material, ensure that the flexible movements of flap.
Description
Technical field
A kind of check-valves is the utility model is related to, more particularly to a kind of self sealss Y type check-valves.
Background technology
Check-valves is primarily used to prevent the medium in pipeline from flowing backwards, and is the valve that can be automatically prevented from reverse flow of fluids.Non-return
The flap of valve is opened under Fluid pressure effect, and fluid flows to outlet side from inlet side.When import lateral pressure is less than outlet side,
Flap is automatic under the effect of the factors such as fluid pressure difference, gravity itself to close to prevent reverse flow of fluids.
What low temperature check-valves was commonly used has straight-through lift low temperature check-valves, two kinds of the swing type low temperature check-valves of single-lobe structure
Structure, its valve seat have the R metallic sealing sections that valve body body is processed, and flap is then formed by intermetallic composite coating, has been provided with thereon poly-
The sealing ring of tetrafluoroethene processing, the low temperature check-valves of the form have that either valve circulating resistance is larger or sealing effectiveness
Bad situation.
Utility model content
The shortcomings that the purpose of this utility model is to overcome prior art, there is provided a kind of circulating resistance is small, is active in one's movements, is close
Seal the good Y type low temperature check-valves of effect.
The utility model is realized by the following technical solutions：
A kind of self sealss Y type check-valves, including the valve body in Y-shaped, the flap being arranged at valve body center；Valve body it is upper
Top of chamber is set as the bonnet being oriented to, and spring is provided with the upper cavity space between the bonnet and the flap, described
It is in the guide sleeve of integrative-structure that the bottom of bonnet, which is provided with the bonnet,；The flap top is provided with to be slided with the guide sleeve
The dynamic guiding rib coordinated；The company for being laid in flap top and being connected with the valve outlet is provided with the lower end of the guiding rib
Port.
Further, the lower end periphery of the flap is provided with cobalt matrix alloy seal insert.
Further, it is provided with hard alloy coating on the guiding rib periphery.
The beneficial effects of the utility model are：
1st, in flap upper design, connected entrance, connected entrance make the epicoele of flap be connected with valve outlet to the utility model,
When flap is risen with falling after rise, reduce shock and vibration, circulating resistance is small, and flap is reached total travel.
2nd, the guide sleeve and guiding rib structure of mutual cooperation are devised, built-up welding iron-base hard alloy coating on guiding rib, valve
Body epicoele guide sleeve is made of stainless steel material, ensure that the flexible movements of flap.
3rd, flap and sealing surface of seat prestige, hardness height, Anti-erosion, anti-wiping using cobalt-based hard platform gold plasma spray
Hinder, be durable in use.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
In figure：1- valve bodies, 2- bonnets, 2a- guide sleeves, 3- flaps, 3a- guiding ribs, 3b- connected entrances, 4- springs, 5- cobalt-baseds
Matter alloy seal insert.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described further to the utility model.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
As shown in figure 1, present embodiment discloses a kind of self sealss Y type check-valves, including the valve body 1 in Y-shaped, it is arranged on
Flap 3 at the center of valve body 1；The upper top of chamber of valve body 1 is set as the bonnet 2 being oriented to, in the bonnet 2 and the flap 3
Between upper cavity space in be provided with spring 4, the bottom of the bonnet 2 be provided with the bonnet 2 be in integrative-structure guiding
Cover 2a；The top of flap 3 is provided with the guiding rib 3a being slidably matched with the guide sleeve 2a, and flap 3 is led in lifting process
To set 2a and guiding rib 3a.It is provided with to be laid in the top of flap 3 and export with the valve body 1 in the lower end of the guiding rib 3a and connects
After logical connected entrance 3b, connected entrance 3b connect with outlet so that, thereon will not shape in cavity space when flap 3 is in opening process
Into back pressure, it is easy to flexibly open.
In the present embodiment, to ensure the sealing of flap 3 and valve body 1, the lower end periphery of flap 3 is provided with cobalt matrix conjunction
Gold sealing insert 5.
In the present embodiment, to extend guide sleeve 2a and guiding rib 3a volume service lifes, set on the guiding rib 3a peripheries
Hard alloy coating is equipped with, the guide sleeve 2a is made into integration with bonnet 2 by stainless steel material.
When reverse flow of fluids, due to the deadweight of flap 3 and the differential pressure action of spring force, flap 3 is set to decline and close with valve body 1
Front cover is closely sealed, so as to prevent reverse flow of fluids.
Above-described embodiment is preferred embodiment of the present utility model, is not the limit to technical solutions of the utility model
System, as long as the technical scheme that can be realized without creative work on the basis of above-described embodiment, is regarded as falling into
In the rights protection scope of the utility model patent.
Claims (3)
1. a kind of self sealss Y type check-valves, including the valve body (1) in Y-shaped, the flap (3) being arranged at valve body (1) center；
Characterized in that, the upper top of chamber of valve body (1) is set as the bonnet (2) being oriented to, in the bonnet (2) and the flap (3)
Between upper cavity space in be provided with spring (4), it is in integrative-structure that the bottom of the bonnet (2), which is provided with the bonnet (2),
Guide sleeve (2a)；Flap (3) top is provided with the guiding rib (3a) being slidably matched with the guide sleeve (2a)；Described
The lower end of guiding rib (3a) be provided be laid in flap (3) top and with the connected entrance (3b) of the valve body (1) outlet.
2. a kind of self sealss Y type check-valves according to claim 1, it is characterised in that the lower end of the flap (3) is cylindrical
Face is provided with cobalt matrix alloy seal insert (5).
3. a kind of self sealss Y type check-valves according to claim 1 or 2, it is characterised in that the guiding rib (3a) is cylindrical
Hard alloy coating is provided with face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720688714.5U CN206988483U (en) | 2017-06-14 | 2017-06-14 | A kind of self sealss Y type check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720688714.5U CN206988483U (en) | 2017-06-14 | 2017-06-14 | A kind of self sealss Y type check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206988483U true CN206988483U (en) | 2018-02-09 |
Family
ID=61396603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720688714.5U Expired - Fee Related CN206988483U (en) | 2017-06-14 | 2017-06-14 | A kind of self sealss Y type check-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206988483U (en) |
-
2017
- 2017-06-14 CN CN201720688714.5U patent/CN206988483U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20200614 |