CN204717065U - Swing check valve - Google Patents
Swing check valve Download PDFInfo
- Publication number
- CN204717065U CN204717065U CN201520436058.0U CN201520436058U CN204717065U CN 204717065 U CN204717065 U CN 204717065U CN 201520436058 U CN201520436058 U CN 201520436058U CN 204717065 U CN204717065 U CN 204717065U
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- CN
- China
- Prior art keywords
- flap
- valve
- valve seat
- annular groove
- valve body
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of Swing check valve, comprise the valve body of hollow, valve seat is provided with in the middle part of described valve body, flap, described flap by a rocking bar and valve body hinged, described flap and valve seat are conflicted, and valve body is divided into inlet part, outlet part, its technological points is: described valve seat is provided with some annular grooves in the one side of flap, described flap is provided with towards the one side of valve seat the annular protrusion coordinated with annular groove, described annular groove coordinates valve seat described in valve flap seals described in grafting with annular protrusion, aim to provide a kind of good seal performance, flap and the anti abrasive Swing check valve of valve seat.
Description
Technical field
The utility model relates to a kind of valve, and more particularly, it relates to a kind of Swing check valve.
Background technique
Swing check valve is also known as one-way valve or check valve, and its effect prevents the medium in pipeline from flowing backwards.Open-shut device is opened voluntarily by media flow and strength or closes, and the valve flow backwards to prevent medium is on safety check.Safety check belongs to self-acting valve class, is mainly used on the pipeline of medium one-way flow, only allows medium to flow to a direction, to try to avert accidents.This class valve generally should level be installed in the duct.
At present, (application number is that the Chinese patent of CN201510056666.3 discloses a kind of ultralow temperature Swing check valve for liquefied natural gas (LNG) carrier) on market, it comprises: valve body, valve disc, pivoted arm, valve gap, bearing pin, nut and pad.The sealing surface of the valve disc of closed condition and the sealing surface of valve body form sealing pair; One end of pivoted arm is connected with valve body by bearing pin, and the other end is connected with valve disc and drives valve disc to be that the center of circle rotarily opens with bearing pin, makes the sealing surface of sealing surface away from valve body of valve disc.In the positioning hole that the upper face of weld that the positioning step that valve gap lower end is arranged embeds described valve body is offered, and the pad sealed is set between described valve gap and valve body.
Above-mentioned safety check has made improvement to its sealability, but the sealing surface of its flap and valve seat still adopts common plane conflict mode to realize sealing, the area of contact of this its sealing surface of mode is little, there is bottleneck in sealability, and once flap or valve seat occur wearing and tearing in collision process frequently, safety check will be caused to occur leaking, and its sealability need to strengthen.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of good seal performance, flap and valve seat anti abrasive Swing check valve.
For achieving the above object, the utility model provides following technological scheme: a kind of Swing check valve, comprise the valve body of hollow, valve seat, flap is provided with in the middle part of described valve body, described flap by a rocking bar and valve body hinged, described flap and valve seat are conflicted, and valve body is divided into inlet part, outlet part, wherein: described valve seat is provided with some annular grooves in the one side of flap, described flap is provided with towards the one side of valve seat the annular protrusion coordinated with annular groove, and described annular groove coordinates grafting to make valve seat described in described valve flap seals with annular protrusion.
By adopting technique scheme, described annular groove coordinates with annular protrusion and forms labyrinth seal, sealability between effective reinforcement valve seat and flap, the annular groove of multilayer, male cooperation, significantly increase and climb water distance between valve seat and flap, even if having part valve seat, flap to occur wearing and tearing, still have the annular groove of other grafting, protruding grafting sealing, effectively improve its wear resistance.
The utility model is set to further: the end opens of described annular protrusion has chamfering.
The utility model is set to further: the opening of described annular groove offers chamfering.
By adopting technique scheme, making annular protrusion be connected more stable in the process coordinating grafting with annular groove, reducing the possibility occurring pendulum impact and then wearing and tearing.
The utility model is set to further: the bottom land of described annular groove is embedded with magnet, and the end of described annular protrusion is embedded with paramagnet.
By adopting technique scheme, the magnet being arranged on annular groove bottom land is utilized to produce attraction force to the paramagnet of annular protrusion end, thus make the grafting speed of described annular groove and annular protrusion faster more accurate, connect also more tight simultaneously, strengthen its sealing effect further.
Accompanying drawing explanation
Fig. 1 is the generalized section of the utility model Swing check valve embodiment;
Fig. 2 is the enlarged diagram at A place in the utility model Swing check valve embodiment.
Reference character: 1, valve body; 2, valve seat; 3, flap; 4, rocking bar; 5, annular groove; 6, annular protrusion; 7, chamfering; 8, magnet; 9, paramagnet 10, inlet part; 11, outlet part.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model Swing check valve embodiment is described further.
A kind of Swing check valve, comprise the valve body 1 of hollow, valve seat 2, flap 3 is provided with in the middle part of described valve body 1, described flap 3 is hinged with valve body 1 by a rocking bar 4, described flap 3 is conflicted with valve seat 2, and valve body 1 is divided into inlet part 10, outlet part 11, wherein: described valve seat 2 is provided with some annular grooves 5 in the one side of flap 3, described flap 3 is provided with towards the one side of valve seat 2 annular protrusion 6 coordinated with annular groove 5, and described annular groove 5 coordinates grafting to make described flap 3 close described valve seat 2 with annular protrusion 6.
Principle of the present utility model is: described annular groove 5 coordinates with annular protrusion 6 and forms labyrinth seal, sealability between effective reinforcement valve seat 2 and flap 3, the annular groove 5 of multilayer, male cooperation, significantly increase and climb water distance between valve seat 2 and flap 3, even if having part valve seat 2, flap 3 to occur wearing and tearing, still have the annular groove 5 of other grafting, protruding grafting sealing, effectively improve its wear resistance.
As shown in Figure of description 2, the end opens of described annular protrusion 6 has chamfering 7, certainly, also chamfering 7 can be offered at the opening of described annular groove 5, make annular protrusion 6 be connected more stable in the process coordinating grafting with annular groove 5, reduce the possibility occurring pendulum impact and then wearing and tearing.
The bottom land of described annular groove 5 is embedded with magnet 8, the end of described annular protrusion 6 is embedded with paramagnet 9, the paramagnet 9 being arranged on magnet 8 pairs of annular protrusion 6 ends of annular groove 5 bottom land is utilized to produce attraction force, thus make described annular groove 5 faster more accurate with the grafting speed of annular protrusion 6, connect also more tight simultaneously, strengthen its sealing effect further.
By adopting technique scheme, at linkage portion and valve rod constantly mutually in fastening effect situation, described rubber wear-resisting layer effectively prevents linkage portion or valve rod from occurring plastic deformation, prevents linkage portion or valve rod from occurring wearing and tearing, effectively extends the working life of linkage portion, valve rod.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a Swing check valve, comprise the valve body of hollow, valve seat, flap is provided with in the middle part of described valve body, described flap by a rocking bar and valve body hinged, described flap and valve seat are conflicted, and valve body is divided into inlet part, outlet part, it is characterized in that: described valve seat is provided with some annular grooves in the one side of flap, described flap is provided with towards the one side of valve seat the annular protrusion coordinated with annular groove, and described annular groove coordinates grafting to make valve seat described in described valve flap seals with annular protrusion.
2. Swing check valve according to claim 1, is characterized in that: the end opens of described annular protrusion has chamfering.
3. Swing check valve according to claim 1, is characterized in that: the opening of described annular groove offers chamfering.
4. Swing check valve according to claim 1, is characterized in that: the bottom land of described annular groove is embedded with magnet, and the end of described annular protrusion is embedded with paramagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520436058.0U CN204717065U (en) | 2015-06-24 | 2015-06-24 | Swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520436058.0U CN204717065U (en) | 2015-06-24 | 2015-06-24 | Swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204717065U true CN204717065U (en) | 2015-10-21 |
Family
ID=54316065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520436058.0U Expired - Fee Related CN204717065U (en) | 2015-06-24 | 2015-06-24 | Swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204717065U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202184A (en) * | 2017-07-13 | 2017-09-26 | 辽宁飞鸿达蒸汽节能设备有限公司 | Check-valves is opened in piston type rotation |
| CN108561569A (en) * | 2018-06-08 | 2018-09-21 | 凯斯特阀门集团有限公司 | A kind of self-sealing stop valve |
| CN108662304A (en) * | 2018-06-25 | 2018-10-16 | 江苏迪威高压科技股份有限公司 | A kind of modified anti-return pipeline |
| CN111412377A (en) * | 2020-03-05 | 2020-07-14 | 铜陵兴荣阀门管件有限公司 | One-way drain valve |
-
2015
- 2015-06-24 CN CN201520436058.0U patent/CN204717065U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202184A (en) * | 2017-07-13 | 2017-09-26 | 辽宁飞鸿达蒸汽节能设备有限公司 | Check-valves is opened in piston type rotation |
| CN107202184B (en) * | 2017-07-13 | 2023-05-26 | 辽宁飞鸿达蒸汽节能设备有限公司 | Piston type swing check valve |
| CN108561569A (en) * | 2018-06-08 | 2018-09-21 | 凯斯特阀门集团有限公司 | A kind of self-sealing stop valve |
| CN108662304A (en) * | 2018-06-25 | 2018-10-16 | 江苏迪威高压科技股份有限公司 | A kind of modified anti-return pipeline |
| CN111412377A (en) * | 2020-03-05 | 2020-07-14 | 铜陵兴荣阀门管件有限公司 | One-way drain valve |
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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: 20151021 Termination date: 20170624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |