CN203488796U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN203488796U CN203488796U CN201320509474.XU CN201320509474U CN203488796U CN 203488796 U CN203488796 U CN 203488796U CN 201320509474 U CN201320509474 U CN 201320509474U CN 203488796 U CN203488796 U CN 203488796U
- Authority
- CN
- China
- Prior art keywords
- guide sleeve
- bonnet
- valve body
- safety check
- packing ring
- 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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- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000012856 packing Methods 0.000 claims description 37
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 8
- 238000011109 contamination Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000002939 deleterious effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model provides a check valve, and belongs to the technical field of valves. The check valve solves the problem that a valve rod and a sealing element are easily clamped and plugged as granular impurities in an existing check valve are added up. The check valve comprises a cylindrical body provided with an inlet end and an outlet end, a valve rod is positioned in the body, a gasket is fixedly connected on the valve rod, a conical surface is arranged on the inner wall of the body, the gasket is abutted to the conical surface to form seal, and a spring is arranged in the body and can push and press the gasket towards the inlet end of the body, so that the gasket is abutted to the body. By the aid of the check valve, the impurities cannot remain, so that clamping and plugging are avoided, and the check valve smoothly runs.
Description
Technical field
The utility model belongs to valve technology field, relates to a kind of safety check.
Background technique
Safety check claims again check valve, one-way valve or check valve, and safety check belongs to a kind of automatic valve, and its Main Function is to prevent that medium from flowing backwards, preventing pump and drive motor reversion, and the releasing of vessel media.Safety check is divided by structure, can be divided into three kinds of Lift check valve, Swing check valve and butterfly check valves, and Lift check valve can be divided into two kinds of vertical and straight-through types, and Vertical Lift Check Valves is as the term suggests be vertically to install.
As Chinese practical new patent application (200920112116.9) discloses a kind of safety check, comprise the valve body that an inside is cavity, in valve body, be provided with Sealing and locating piece, locating piece is connected in valve body, between locating piece and Sealing, be provided with spring, in valve body, there is a sealing surface matching with Sealing, elastic force effect lower seal at spring is resisted against on sealing surface and forms sealing, on locating piece, there is the guide rod that is shaft-like, between Sealing and guide rod, there is the guide structure that can make Sealing move along guide rod.Although this safety check can solve the smooth problem of Sealing moving part, but because sealing surface is perpendicular to guide rod shaft axis, be that sealing surface is level, and in routine use process, because each local water quality differs, the impurity in water also differs, and the impurity in water easily remains on sealing surface, these particulate contamination take care of the pence, and easily cause the blocking phenomenon of valve rod and Sealing.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of safety check, and this safety check can be avoided the residual blocking phenomenon that occurs of impurity, makes safety check running flow process.
The purpose of this utility model can realize by following technical proposal: a kind of safety check, comprise a tubular body, described body has entrance point and outlet end, in body, be positioned with a valve rod, on described valve rod, be fixed with a packing ring, it is characterized in that, in described inner body wall, there is a conical surface, described packing ring and the conical surface lean and form sealing, and in described body, being also provided with one can push and make packing ring to be resisted against the spring on body to body entrance point direction on packing ring.
This safety check is Vertical Lift Check Valves, and for vertically installing and using, medium enters body from entrance point, and act on valve rod and packing ring, this active force promotion packing ring and valve rod overcome spring force and move to outlet end, and packing ring departs from body, and medium is realized circulation by safety check; When medium active force is less or stop flowing or during reverse flow, the elastic force of spring is resisted against on the conical surface of body packing ring, the sealing that both form can prevent media flow, realizes the one-way flow function of safety check; Because abutment facing is tapered, and the less one end of this taper abutment facing opening is towards entrance point, therefore the particulate contamination on the abutment facing of packing ring and body can tumble automatically, thereby has avoided because impurities accumulation causes blocking, makes safety check running more smooth.
In above-mentioned safety check, described body comprises all tubular valve body and bonnet, one end of described bonnet is plugged in the entrance point of valve body, and the internal diameter of described valve body and bonnet concentric and bonnet is less than the internal diameter of valve body, and the above-mentioned conical surface is positioned on the insertion end end face of bonnet.The conical surface is the abutment facing of packing ring and bonnet, and in order to match with the conical surface of bonnet, the abutment facing of packing ring is also the conical surface, because bonnet can disassemble from valve body, therefore by bevel on bonnet end face, make to process aspect more, simultaneously also convenient for cleaning.
In above-mentioned safety check, the angle of the described conical surface and valve body shaft axis is 40 °～60 °.When this angle is excessive, particulate contamination can be to tumble, when this angle is too small, and the non-return deleterious of this safety check.
In above-mentioned safety check, on described valve rod, there is a circular baffle plate and be arranged with an annular pressing plate, described gasket sleeve is located on valve rod and between baffle plate and pressing plate, and above-mentioned spring housing is located on valve rod and one end is pressed on pressing plate.Baffle plate, pressing plate, the equal concentric setting of packing ring, baffle plate is directly fixed on valve rod, and pressing plate ringwise, is enclosed within on valve rod and is pressed on packing ring, and under the effect of spring force, packing ring is fixed, and the surface of contact of packing ring and baffle plate and pressing plate all forms sealing.
In above-mentioned safety check, in described valve body, be provided with guide sleeve one, in bonnet, be provided with guide sleeve two, described guide sleeve one and guide sleeve two all with valve body concentric, on the outer circumferential face of described guide sleeve one, there are two connecting plates one that are connected mutually with valve interior wall, on the outer circumferential face of described guide sleeve two, there are two connecting plates two that are connected mutually with bonnet inwall, one end of described valve rod is plugged in guide sleeve one, the other end is plugged in guide sleeve two, and the other end of described spring is pressed on the end face of guide sleeve one.Guide sleeve one is moving axially of valve rod with guide sleeve two leading role is provided, and makes the valve rod can be along self move axially, and guide sleeve one, also for spring provides support, plays the effect of spring seat simultaneously.
In above-mentioned safety check, drive fit between described bonnet and valve body.Dismounting is convenient.
Compared with prior art, this safety check has the following advantages:
1, because abutment facing is tapered, and the less one end of this taper abutment facing opening is towards entrance point, so the particulate contamination on abutment facing can tumble automatically, thereby avoided because impurities accumulation causes blocking, makes safety check running more smooth.
2, due to by bevel on bonnet, and bonnet can disassemble from valve body, therefore processes aspect more, simultaneously also convenient for cleaning.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of this safety check.
Fig. 2 is the structure sectional view at another visual angle of this safety check.
In figure, 1, body; 11, valve body; 111, guide sleeve one; 112, connecting plate one; 12, bonnet; 121, guide sleeve two; 122, connecting plate two; 13, entrance point; 14, outlet end; 2, valve rod; 3, pressing plate; 4, packing ring; 5, baffle plate; 6, spring; 7, the conical surface.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one:
As shown in Figure 1 and Figure 2, a kind of safety check, this safety check is Vertical Lift Check Valves, for vertically installing and using, comprise a body 1, this body 1 is tubular, and there is entrance point 13 and outlet end 14, in body 1, be positioned with a valve rod 2, on valve rod 2, be fixed with a packing ring 4, on body 1 inwall, there is a conical surface 7, packing ring 4 leans and forms sealing with the conical surface 7, in body 1, be also provided with a spring 6, spring 6 acts between body 1 and packing ring 4, can to body 1 entrance point direction, push and make packing ring 4 to be resisted against on the conical surface 7 on packing ring 4.Medium enters body 1 from entrance point 13, and acts on valve rod 2 and packing ring 4, and this active force promotion packing ring 4 and valve rod 2 overcome spring 6 elastic force and move to outlet end 14, and packing ring 4 departs from bodies 1, and medium is realized circulation by safety check; When medium active force is less or stop flowing or during reverse flow, the elastic force of spring 6 is resisted against on the conical surface 7 packing ring 4, the sealing that both form can prevent media flow, realizes the one-way flow function of safety check; Because abutment facing is tapered, and the less one end of this taper abutment facing opening is towards entrance point 13, so the particulate contamination on abutment facing can tumble automatically, thereby avoided because impurities accumulation causes blocking, makes safety check running more smooth.
Specifically, body 1 comprises valve body 11 and bonnet 12, both are all tubular, one end of bonnet 12 is plugged in the entrance point 13 of valve body 11, and the internal diameter of valve body 11 and bonnet 12 concentrics and bonnet 12 is less than the internal diameter of valve body 11, and the conical surface 7 is positioned on the end face of bonnet 12 insertion ends, for the conical surface 7 with bonnet 12 matches, the abutment facing of packing ring 4 is also the conical surface, drive fit between bonnet 12 and valve body 11, and dismounting is convenient.Because bonnet 12 can disassemble from valve body 11, therefore the conical surface 7 is processed on bonnet 12 end faces, make to process aspect more, simultaneously also convenient for cleaning.In an angle, this angle has reflected the inclined degree of the conical surface, when this angle is excessive for the conical surface 7 and valve body 11 shaft axis shapes, particulate contamination can be to tumble, when this angle is too small, the non-return deleterious of this safety check, so in the present embodiment, the conical surface 7 is 50 ° with the angle of valve body 11 shaft axiss.
On valve rod 2, be fixed with the baffle plate 5 of a circle, and cover has the pressing plate 3 of an annular, packing ring 4 is set on valve rod 2 and between baffle plate 5 and pressing plate 3, baffle plate 5, pressing plate 3, the equal concentric setting of packing ring 4, and baffle plate 5 is directly fixed on valve rod 2, pressing plate 3 ringwise, be enclosed within on valve rod 2 and be pressed on packing ring 4, one end of spring 6 acts on pressing plate 3, under the effect of spring 6 elastic force, packing ring 4 is fixed, and packing ring 4 all forms sealing with the surface of contact of baffle plate 5 and pressing plate 3.In valve body 11, be provided with guide sleeve 1, have two connecting plates 1 that are connected mutually with valve body 11 inwalls on the outer circumferential face of guide sleeve 1, the other end of spring 6 is pressed on the end face of guide sleeve 1; In bonnet 12, be provided with guide sleeve 2 121, on the outer circumferential face of guide sleeve 2 121, there are two connecting plates 2 122 that are connected mutually with bonnet 12 inwalls, guide sleeve 1 and guide sleeve 2 121 all with valve body 11 concentrics, one end of valve rod 2 is plugged in guide sleeve 1, the other end is plugged in guide sleeve 2 121, guide sleeve 1 is moving axially of valve rod 2 with guide sleeve 2 121 leading role is provided, make the valve rod 2 can moving axially along self, guide sleeve 1 also provides support for spring 6 simultaneously, plays the effect of spring seat.
Embodiment two:
The structure of this safety check and embodiment one are basic identical, and difference is, in the present embodiment, the conical surface 7 is 40 ° with the angle of valve body 11 shaft axiss.
Embodiment three:
The structure of this safety check and embodiment one are basic identical, and difference is, in the present embodiment, the conical surface 7 is 60 ° with the angle of valve body 11 shaft axiss.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used the terms such as body 1, valve body 11, guide sleeve 1, connecting plate 1, bonnet 12, guide sleeve 2 121, connecting plate 2 122, entrance point 13, outlet end 14, valve rod 2, pressing plate 3, packing ring 4, baffle plate 5, spring 6, the conical surface 7 herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (6)
1. a safety check, comprise a tubular body (1), described body (1) has entrance point (13) and outlet end (14), in body (1), be positioned with a valve rod (2), on described valve rod (2), be fixed with a packing ring (4), it is characterized in that, in described inner body wall, there is a conical surface (7), described packing ring (4) leans and forms sealing with the conical surface (7), and in described body (1), being also provided with one can push and make packing ring (4) to be resisted against the spring (6) on the conical surface to body (1) entrance point (13) direction on packing ring (4).
2. safety check according to claim 1, it is characterized in that, described body (1) comprises all tubular valve body (11) and bonnet (12), one end of described bonnet (12) is plugged in the entrance point (13) of valve body (11), the internal diameter of described valve body (11) and bonnet (12) concentric and bonnet (12) is less than the internal diameter of valve body (11), and the above-mentioned conical surface (7) is positioned on the insertion end end face of bonnet (12).
3. safety check according to claim 2, is characterized in that, the described conical surface (7) is 40 °～60 ° with the angle of valve body (11) shaft axis.
4. safety check according to claim 3, it is characterized in that, on described valve rod (2), there is a circular baffle plate (5) and be arranged with an annular pressing plate (3), described packing ring (4) is set in valve rod (2) above and is positioned between baffle plate (5) and pressing plate (3), and above-mentioned spring (6) is set in valve rod (2) above and one end is pressed on pressing plate (3).
5. safety check according to claim 4, it is characterized in that, in described valve body (11), be provided with guide sleeve one (111), in bonnet (12), be provided with guide sleeve two (121), described guide sleeve one (111) and guide sleeve two (121) all with valve body (11) concentric, on the outer circumferential face of described guide sleeve one (111), there are two connecting plates one (112) that are connected mutually with valve body (11) inwall, on the outer circumferential face of described guide sleeve two (121), there are two connecting plates two (122) that are connected mutually with bonnet (12) inwall, one end of described valve rod (2) is plugged in guide sleeve one (111), the other end is plugged in guide sleeve two (121), the other end of described spring (6) is pressed on the end face of guide sleeve one (111).
6. according to the safety check described in claim 4 or 5, it is characterized in that drive fit between described bonnet (12) and valve body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509474.XU CN203488796U (en) | 2013-08-20 | 2013-08-20 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509474.XU CN203488796U (en) | 2013-08-20 | 2013-08-20 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203488796U true CN203488796U (en) | 2014-03-19 |
Family
ID=50259631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320509474.XU Expired - Fee Related CN203488796U (en) | 2013-08-20 | 2013-08-20 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203488796U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042121A (en) * | 2015-08-11 | 2015-11-11 | 玉环县和成铜业有限公司 | Exhaust valve on distributor |
| CN105545859A (en) * | 2015-12-22 | 2016-05-04 | 芜湖恒坤汽车部件有限公司 | Oil inlet valve |
| CN107061806A (en) * | 2016-02-10 | 2017-08-18 | 纽珀有限公司 | Bathroom back-flow prevention valve |
-
2013
- 2013-08-20 CN CN201320509474.XU patent/CN203488796U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042121A (en) * | 2015-08-11 | 2015-11-11 | 玉环县和成铜业有限公司 | Exhaust valve on distributor |
| CN105545859A (en) * | 2015-12-22 | 2016-05-04 | 芜湖恒坤汽车部件有限公司 | Oil inlet valve |
| CN107061806A (en) * | 2016-02-10 | 2017-08-18 | 纽珀有限公司 | Bathroom back-flow prevention valve |
| CN107061806B (en) * | 2016-02-10 | 2022-03-08 | 纽珀有限公司 | Back flow preventing valve for bathroom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TAO SUFU Free format text: FORMER OWNER: ZHUO DANCHUN Effective date: 20140903 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 317608 TAIZHOU, ZHEJIANG PROVINCE TO: 317600 TAIZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140903 Address after: Taizhou City, Zhejiang province 317600 Yuhuan County Lu Pu Zhen Pharmaceutical Packaging Industrial Park of Zhejiang Wofan Energy Technology Co. Ltd. Patentee after: Tao Sufu Address before: Taizhou City, Zhejiang province 317608 Yuhuan County Lu Pu town Xuanmen industrial city Zhejiang world HVAC technology Co Ltd Patentee before: Zhuo Danchun |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20180820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |