CN204140963U - Axial flow type check valve - Google Patents
Axial flow type check valve Download PDFInfo
- Publication number
- CN204140963U CN204140963U CN201420555352.9U CN201420555352U CN204140963U CN 204140963 U CN204140963 U CN 204140963U CN 201420555352 U CN201420555352 U CN 201420555352U CN 204140963 U CN204140963 U CN 204140963U
- Authority
- CN
- China
- Prior art keywords
- flap
- valve
- guide holder
- valve body
- guide rod
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
Abstract
The utility model relates to a kind of axial flow type check valve, comprise valve body, valve seat, flap, spring, guide holder and guide rod, valve body is provided with the import of medium circulation, outlet and valve seat letter mouth, described valve seat is fixed on the valve seat letter mouth of valve body, flap is fixedly connected with guide rod, guide rod one end to be arranged in guide holder and to be axially connected with guide holder slippage along self, the chien shih flap that described spring is arranged at guide holder and flap abuts valve seat, the side that described guide holder is connecting valve outlet is provided with the conical surface suitable with valve interior wall, described conical surface and guide rod are coaxially arranged, guide holder is connected with valve body screw thread at exit end, the beneficial effects of the utility model are that between valve body and guide holder, coaxality is high, the sealing surface quality of fit of flap and valve seat is high, Product Assembly and easy to maintenance.
Description
Technical field
The utility model relates to a kind of safety check, relates to a kind of axial flow type check valve in particular, is mainly used in valve manufacture field.
Background technique
Axial flow safety check is a kind of safety check being decided the open and close of flap by the pressure difference of entrance point and outlet end.Existing axial flow valve comprises valve body as shown in Figure 1, valve seat, flap, spring, guide holder, guide sleeve and guide rod, valve body is provided with the import of medium circulation, outlet and valve seat letter mouth, valve outlet place processes cylinder locating face, guide holder is fixedly connected with cylinder locating face, guide sleeve is installed on and guide holder adds spot welding by screw pair or is welded to connect location, on the valve seat letter mouth that valve seat is loaded on valve body and to form sealing surface of seat by machining after welding with valve body concentric with valve body to ensure sealing surface of seat, flap is machined to an integral installation again with guide rod between guide holder and flap after welding, and make flap keep concentric with valve seat two sealing surface by being slidably matched between guide sleeve.
Existing axial flow type check valve is owing to needing to consider assembling and the convenience of keeping in repair, use between valve body and guide holder during cylinder position structure and adopt Spielpassung, therefore the coaxality between valve body and guide holder is undesirable, and the sealing surface quality of fit of flap and valve seat is low.And the working principle of axial flow type check valve makes the open and close of flap be in a dynamic force balancing system, if flap cannot support and ensure to be stabilized in a position of opening by rate of flow of fluid in pipe-line system, then flap and relative motion parts may be in a kind of persistent movement and vibrational state, thus there is the excessive wear of flap and relative motion parts, if when the medium differential pressure in pipe-line system is large, the closing velocity that flap there will be flap under the double action of medium and spring force is too fast, make flap with high-speed impact valve seat and occur water hammer, thus reduce valve and pipeline the unite in working life of miscellaneous equipment.
Model utility content
In order to solve above-mentioned technical problem, now provide coaxality between a kind of valve body and guide holder high, the sealing surface quality of fit of flap and valve seat is high, is convenient to assemble the axial flow type check valve with maintenance.
For solving above technical problem, the technological scheme that the utility model is taked is a kind of axial flow type check valve, comprise valve body, valve seat, flap, spring, guide holder and guide rod, valve body is provided with the import of medium circulation, outlet and valve seat letter mouth, described valve seat is fixed on the valve seat letter mouth of valve body, flap is fixedly connected with guide rod, guide rod one end to be arranged in guide holder and to be axially connected with guide holder slippage along self, the chien shih flap that described spring is arranged at guide holder and flap abuts valve seat, the side that described guide holder is connecting valve outlet is provided with the conical surface suitable with valve interior wall, described conical surface and guide rod are coaxially arranged, guide holder is connected with valve body screw thread at exit end
Further, damped cylinder is provided with in described guide holder, described guide rod one end is fixedly connected with flap, the other end to be arranged in damped cylinder and to be connected with damped cylinder slippage, described both ends of the spring abuts guide holder and flap respectively, and the side that described damped cylinder connects guide rod is provided with seal ring, and opposite side is provided with adjustment hole, described seal ring is arranged between damped cylinder and guide rod, and described adjustment hole is communicated with the outlet of damped cylinder inside and valve body.
Further, described seal ring is O RunddichtringO.
The beneficial effects of the utility model are by arranging outside thread and guide holder conical surface on guide holder, valve body arranges internal thread and valve body conical surface, guide holder and valve body is made to form cone match, the screw-thread fit that during assembling, guide holder is formed from the side of valve outlet along internal thread and outside thread screws in valve body until guide holder conical surface and valve body conical surface abut against and can complete assembling, compare traditional connecting location by cylndrical surface and adopt Spielpassung, between guide holder and valve body, coaxality is higher, flap and sealing surface of seat coordinate more accurate, and assembly and disassembly process is also convenient, be conducive to assembling and the maintenance of product.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing Swing check valve hanging platform position;
Fig. 2 is the structure diagram of the utility model embodiment Swing check valve.
Description of reference numerals: 1, valve body; 11, import; 12, export; 121, internal thread; 122, valve body conical surface; 13, valve seat letter mouth; 2, valve seat; 3, flap; 4, spring; 5, seal ring; 6, damped cylinder; 61, adjustment hole; 7, guide holder; 71, outside thread; 72, guide holder conical surface; 8, guide rod; 9, guide sleeve.
Embodiment
Be described further below in conjunction with accompanying drawing 1 to 2 pair of the utility model mode of execution:
A kind of axial flow type check valve, comprise valve body 1, valve seat 2, flap 3, spring 4, guide rod 8, O RunddichtringO 5, damped cylinder 6 and guide holder 7, described valve body 1 is provided with the import 11 of medium circulation, outlet 12 and valve seat letter mouth 13, on the valve seat letter mouth 13 that described valve seat 2 is loaded on valve body 1 and by being connected on valve body 1 after welding, rear valve base 2 machining sealing surface concentric with valve body 1 to ensure valve seat 2 sealing surface, described valve body 1 exports 12 ends and processes internal thread 121 and valve body conical surface 122, guide holder 7 processes outside thread 71 to make guide holder 7 and valve body 1 form the conical surface with guide holder conical surface 72 to locate, described damped cylinder 6 is installed on guide holder 7 and is fixedly connected with guide holder 7 by screw, one end that damped cylinder 6 is connected with guide rod 8 is provided with O type ring recess and installs O RunddichtringO 5 additional, the other end is provided with the adjustment hole 61 be connected with damped cylinder 6 inside, adjustment hole 61 can be designed to different size according to different working condition and regulate the smooth working of flap 3 under different operating mode to play, described flap 3 is being machined to an integral installation with guide rod 8 between damped cylinder 6 and valve seat 2 after welding, and make flap 3 and valve seat 2 liang of sealing surfaces keep concentric by being slidably matched between guide rod 8 and damped cylinder 6.
Spring 4 to be installed between guide holder 7 and flap 3 and by the coaxality of flap 3 and the step position assurance on guide holder 7 and guide rod 8.By calculating spring 4 length to ensure certain pressure place amount during design, to ensure that flap 3 has certain initial sealing power.The guide sleeve 9 that damped cylinder 6 instead of existing product use makes flap 3 milder when opening and closing.Guide rod 8 is driven to move to outlet 12 direction when import 11 1 end pressure is greater than flap 3 when outlet 12 1 end pressure is greater than the elastic force of spring 4 by medium thrust, seal owing to have employed O RunddichtringO 5 between guide rod 8 and damped cylinder 6, therefore when flap 3 with guide rod 8 because the medium of damped cylinder 6 inside when medium thrust moves to outlet 12 end can only be discharged by the adjustment hole 61 of damped cylinder 6, because the former tired of adjustment hole 61 flow channel cross-section area makes medium can only discharge with certain speed, cross sectional area can be controlled to control the velocity of discharge during design, the object that guide rod 8 is slowly opened with flap 3 is finally reached from face, otherwise when flap 3 is closed by medium power, guide rod 8 and flap 3 move to valve seat 2 direction and make damped cylinder 6 inside move because of guide rod 8 thus produce pull of vacuum, the medium in valve body 1 is made again to enter damped cylinder 6 by the adjustment hole 61 bottom damped cylinder 6 inner, reason because of adjustment hole 61 cross-section area makes medium can only entering into damped cylinder 6 thus reaching the object making flap 3 Slow Close with speed definitely.Because adopt O RunddichtringO 5 to seal between guide rod 8 and damped cylinder 6, thus the frictional force reduced between guide rod 8 and obstruction Buddhist nun cylinder is to improve the working life of valve.Damped cylinder 6 makes valve achieve slow opening and slow closure function; therefore the generation of the water hammer in pipe-line system is effectively eliminated; eliminate the Noise and vibration decreased in pipe-line system; thus the effective working life protecting other piping element in pipe-line system; improve the prouctiveness of equipment, and the demand of client can be met.
Above-described embodiment should not be considered as restriction of the present utility model, but any improvement done based on spirit of the present utility model, all should within protection domain of the present utility model.
Claims (3)
1. an axial flow type check valve, comprise valve body, valve seat, flap, spring, guide holder and guide rod, valve body is provided with the import of medium circulation, outlet and valve seat letter mouth, described valve seat is fixed on the valve seat letter mouth of valve body, flap is fixedly connected with guide rod, guide rod one end to be arranged in guide holder and to be axially connected with guide holder slippage along self, the chien shih flap that described spring is arranged at guide holder and flap abuts valve seat, it is characterized in that: the side that described guide holder is connecting valve outlet is provided with the conical surface suitable with valve interior wall, described conical surface and guide rod are coaxially arranged, guide holder is connected with valve body screw thread at exit end.
2. axial flow type check valve according to claim 1, it is characterized in that: in described guide holder, be provided with damped cylinder, described guide rod one end is fixedly connected with flap, the other end to be arranged in damped cylinder and to be connected with damped cylinder slippage, described both ends of the spring abuts guide holder and flap respectively, and the side that described damped cylinder connects guide rod is provided with seal ring, and opposite side is provided with adjustment hole, described seal ring is arranged between damped cylinder and guide rod, and described adjustment hole is communicated with the outlet of damped cylinder inside and valve body.
3. axial flow type check valve according to claim 2, is characterized in that: described seal ring is O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555352.9U CN204140963U (en) | 2014-09-23 | 2014-09-23 | Axial flow type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420555352.9U CN204140963U (en) | 2014-09-23 | 2014-09-23 | Axial flow type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140963U true CN204140963U (en) | 2015-02-04 |
Family
ID=52417647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420555352.9U Expired - Fee Related CN204140963U (en) | 2014-09-23 | 2014-09-23 | Axial flow type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204140963U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276245A (en) * | 2015-11-09 | 2016-01-27 | 五洲阀门有限公司 | Axial flow check valve |
| CN108561599A (en) * | 2018-05-30 | 2018-09-21 | 安徽红星阀门有限公司 | Axial flow type check valve |
| CN109826983A (en) * | 2019-03-29 | 2019-05-31 | 成都成高阀门有限公司 | A kind of deep cooling axial flow type check valve |
| EP3625488A4 (en) * | 2017-05-15 | 2021-01-20 | Country Cocky Pty. Ltd. | Valve for large scale irrigation |
| US11976747B2 (en) | 2019-03-20 | 2024-05-07 | Danfoss A/S | Compressor unit with a damped axial check valve for a discharge outlet |
-
2014
- 2014-09-23 CN CN201420555352.9U patent/CN204140963U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276245A (en) * | 2015-11-09 | 2016-01-27 | 五洲阀门有限公司 | Axial flow check valve |
| EP3625488A4 (en) * | 2017-05-15 | 2021-01-20 | Country Cocky Pty. Ltd. | Valve for large scale irrigation |
| US11242937B2 (en) | 2017-05-15 | 2022-02-08 | Country Cocky Pty Ltd | Valve for large scale irrigation |
| CN108561599A (en) * | 2018-05-30 | 2018-09-21 | 安徽红星阀门有限公司 | Axial flow type check valve |
| CN108561599B (en) * | 2018-05-30 | 2024-01-02 | 安徽红星阀门有限公司 | Axial flow type check valve |
| US11976747B2 (en) | 2019-03-20 | 2024-05-07 | Danfoss A/S | Compressor unit with a damped axial check valve for a discharge outlet |
| CN109826983A (en) * | 2019-03-29 | 2019-05-31 | 成都成高阀门有限公司 | A kind of deep cooling axial flow type check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 1921 Binhai 1st Road, economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee after: Founder Valve Group Co.,Ltd. Address before: No. 1921 Binhai 1st Road, economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee before: FANGZHENG VALVE GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201103 Address after: No. 1921 Binhai 1st Road, economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee after: FANGZHENG VALVE GROUP Co.,Ltd. Address before: 325000, Zhejiang economic and Technological Development Zone, Wenzhou Binhai park together Patentee before: FANGZHENG VALVE GROUP (WENZHOU) MACHINERY MANUFACTURING Co.,Ltd. |
|
| 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: 20150204 |