CN108869810A - Check-valves with break-in facility - Google Patents
Check-valves with break-in facility Download PDFInfo
- Publication number
- CN108869810A CN108869810A CN201810958917.0A CN201810958917A CN108869810A CN 108869810 A CN108869810 A CN 108869810A CN 201810958917 A CN201810958917 A CN 201810958917A CN 108869810 A CN108869810 A CN 108869810A
- Authority
- CN
- China
- Prior art keywords
- valve body
- periphery
- flap
- valve
- transmission nut
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 8
- 230000008676 import Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
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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
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The present invention relates to a kind of check-valves with break-in facility, including valve body, flap, valve rod, mandril；It is characterized in that：Valve body import channel and exit passageway are straight-through structure, guide sleeve is equipped in valve body import channel, the pilot hole at the guide sleeve center and the dynamic cooperation of the guide rod at flap inlet-side end surface center, the periphery of flap back side guide rod and the dynamic cooperation of the inner hole of transmission nut one end, the screw thread of mandril one end periphery and transmission nut other end inner hole cooperates, and is cooperated between mandril other end periphery and guide ring centre bore using axial bond and axial groove；Transmission device is equipped in transmission nut periphery.Reverse media pressure perpendicular acts on the flap back side, and flap is pushed to close, and closes good reliability, non-return reliable performance.
Description
Technical field
The invention belongs to valve field more particularly to a kind of truncation check-valves.The present invention be suitable for petroleum, chemical industry, electric power,
The control valve in the fields such as water process medium delivery pipe road.
Background technique
Traditional shut-off valve and check-valves can only all play each own function, and the function of shut-off valve is off or connects
Medium in pipeline, the function of check-valves are that control medium is flow backwards.However, on the outlet conduit of the equipment such as the hydraulic turbine, pumping plant,
It while medium in order to prevent flows backwards installation check-valves also needs that block valve is installed simultaneously, so not only occupied space, but also
Installation cost is high.Currently, having the screw down nonreturn valve of truncation and check function simultaneously, mainly there are angie type, Y type and linear type knot
Its runner by check-valves of structure, these structures is all bottom in and top out structure, as patent No. CN201720667949.6 by
Check-valves, structure include valve body, flap, valve rod, valve deck, and valve body is imported and exported point-blank, valve flowing channel use under into
Upper structure out, i.e. valve body import channel is on the downside of flap, and exit passageway is on the upside of flap, and flap and valve rod lower end are using the company of floating
It connects, pushes lower Disc to move up unlatching with valve rod axis direction in positive medium, push lower Disc with valve rod axis in reverse media
Direction moves down closing.Its major defect is：Reverse media acts on the thrust on flap from valve outlet side, generates three to flap
The active force in a direction, first is that reverse media generates downward thrust to the flap back side, this thrust and flap gravity constitute valve
Valve closing forces, second is that reverse media prevents valve from upward thrust is generated when flowing through between flap lower end surface and valve seat to flap
Valve is closed, third is that medium generates radial thrust to flap.The power in three directions acts on flap simultaneously, be easy to cause flap card
It cannot be closed rapidly on valve rod, non-return poor reliability is poor to system equipment protective value.
Summary of the invention
The present invention is directed to disadvantage of the existing technology, provide that a kind of non-return performance is good, can reliably protecting system equipment
Check-valves with break-in facility.
Technical solution of the present invention includes valve body, flap, valve rod, mandril, and valve body import channel is formed with and flap phase interworking
The sealing surface of seat of conjunction；It is characterized in that：Valve body import channel and exit passageway are straight-through structure, and valve body import is equipped in channel
Guide sleeve, the pilot hole at the guide sleeve center and the dynamic cooperation of the guide rod at flap inlet-side end surface center, flap back side guide rod
Periphery and the dynamic cooperation of the inner hole of transmission nut one end, transmission nut are mounted on body cavity by thrust bearing and fastening screw nut
In water conservancy diversion frame centre bore, water conservancy diversion frame is fixedly mounted on valve outlet vias inner walls, mandril one end periphery and biography by guiding rib
The screw thread of dynamic nut other end inner hole cooperates, and mandril other end movable set is in the guide ring of valve outlet vias inner walls
It in heart hole, is cooperated between mandril periphery and guide ring centre bore using axial bond and axial groove, at the flap back side and is passed
Spring is installed between dynamic nut radial direction convex shoulder；It is equipped with transmission device in transmission nut periphery, which includes mutually nibbling
The driving gear and driven gear of conjunction, driven gear are fixedly mounted on one heart on transmission nut periphery, and driving gear is fixed to be connected
It connects in one end of valve rod, the valve rod other end passes through valve body, bracket is fixedly connected with the hand wheel, and sets between valve rod periphery and valve body
Set airtight and watertight padding.
Preferably, driving gear and driven gear are intermeshed using bevel gear, and the center line of the two is mutually perpendicular to.
Preferably, water conservancy diversion frame has the outer conical surface of streamline similar to body cavity wall, the outer conical surface and body cavity
The annular channel of homalographic is constituted between wall.
It is an advantage of the invention that valve body import channel and exit passageway are straight-through structure, the effect of reverse media pressure perpendicular
At the flap back side, flap is pushed to close, closes good reliability, non-return reliable performance.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
Check-valves with break-in facility as shown in Figure 1, including valve body 1, flap 3, valve rod 14, mandril 12, valve body 1 into
Mouth channel, which is formed with, uses metal material with the mutually matched sealing surface of seat of 3 sealing surface of flap, 3 sealing surface of flap and sealing surface of seat
Material is suitable for high temperature, abrasive media operating condition；It is characterized in that：1 intake channel of valve body and exit passageway are straight-through structure, i.e.,
1 valve body of valve body inlet and outlet channel centerline is overlapped with 1 inner cavity runner center line of valve body, and guide sleeve is equipped in 1 intake channel of valve body
2, the pilot hole at 2 center of guide sleeve and the guide rod at 3 inlet-side end surface center of flap move and cooperate, outside 3 back side guide rod of flap
Disc and the dynamic cooperation of the inner hole of 5 one end of transmission nut, are limited in 2 pilot hole of guide sleeve and 5 inner hole inner shaft of transmission nut for flap 3
To movement, transmission nut 5 is mounted in 8 centre bore of water conservancy diversion frame of 1 inner cavity of valve body by thrust bearing 7 and fastening screw nut 11, thrust
Bearing 7 is mounted between the radial step of 8 centre bore of 5 periphery of transmission nut and water conservancy diversion frame, fastening screw nut 11 and transmission nut 5
Periphery is threadedly engaged, and 5 axial compression of transmission nut is mounted on 7 end face of thrust bearing, and thrust bearing 7 is followed to rotate,
Bearing pressure ring 10 is installed, water conservancy diversion frame 8 is fixedly mounted on valve body 1 by guiding rib between 7 end face of thrust bearing and fastening screw nut 11
The screw thread of exit passageway inner wall, 12 one end periphery of mandril and 5 other end inner hole of transmission nut cooperates, 12 other end of mandril
Movable set is in 9 centre bore of guide ring of 1 exit passageway inner wall of valve body, between 9 centre bore of 12 periphery of mandril and guide ring
It is cooperated using axial bond and axial groove, limitation mandril 12 follows transmission nut 5 to rotate, the mandril when transmission nut 5 rotates
12 axial movements install spring spring 4 between 3 back side of flap and the radial convex shoulder of transmission nut 5；In 5 periphery of transmission nut
Equipped with transmission device, which includes intermeshing driving gear 13 and driven gear 6, and driven gear 6 is fixed with one heart
It is mounted on 5 periphery of transmission nut, driving gear 13 is fixedly connected on one end of valve rod 14 with one heart, and 14 other end of valve rod passes through
Valve body 1, bracket 25 are fixedly connected with handwheel 24, and airtight and watertight padding 16 is arranged between 14 periphery of valve rod and valve body 1, which fills out
Material 16 is mounted on valve rod 14 and valve body 1 by Packing seat 15, filler pressing sleeve 17, hold-down grid 18, follower bolt 19, panel nut 20
Between, valve rod 14 is installed on bracket 25 by divided ring 22, bearing 21, bearing gland 23, and it is axial that divided ring 22 limits valve rod 14
It is mobile.When handwheel 24 with ovable valve stem 14, driving gear 13, rotate clockwise when, 13 transfer driven gear 6 of driving gear and transmission
Nut 5 rotates, and drives mandril 12 to move axially to the right, 3 back side guide rod of flap is left in 12 left end of mandril, and flap 3 is controlled by medium
Opening and closing, valve are in check-valves working condition；When handwheel 24 is with ovable valve stem 14, driving gear 13, rotation counterclockwise, driving tooth
It takes turns 13 transfer driven gears 6 and transmission nut 5 rotates, mandril 12 is driven to move axially to the left, 12 left end of mandril holds out against the back of flap 3
Face guide rod pushes flap 3 and sealing surface of seat to compress and seals, and valve is in shut-off valve working condition.
Driving gear 13 and driven gear 6 are intermeshed using bevel gear, and the center line of the two is mutually perpendicular to.
It is cooperated and is connected using axial bond and axial groove between 5 periphery of 6 inner hole of driven gear and transmission nut, limitation
The two relative rotation, 6 both ends of the surface of driven gear are fitted in the radial convex shoulder and 8 inner hole of water conservancy diversion frame radial direction of 5 periphery of transmission nut
Between thrust bearing 7 in step, limitation driven gear 6 and the axially opposing movement of transmission nut 5, when driving gear 13 rotates,
Driven gear 6, transmission nut 5, bearing pressure ring 10 and 11 one of fastening screw nut is driven to rotate in 8 centre bore of water conservancy diversion frame.
Water conservancy diversion frame 8 has an outer conical surface of streamline similar to 1 internal chamber wall of valve body, the outer conical surface and 1 internal chamber wall of valve body it
Between constitute homalographic annular channel, reduce circulation noise.
Claims (4)
1. a kind of check-valves with break-in facility, including valve body（1）, flap（3）, valve rod（14）, mandril（12）, valve body（1）
Intake channel is formed with and flap（3）The mutually matched sealing surface of seat of sealing surface；It is characterized in that：Valve body（1）Intake channel with go out
Mouth channel is straight-through structure, valve body（1）Guide sleeve is equipped in intake channel（2）, the guide sleeve（2）The pilot hole and valve at center
Valve（3）The dynamic cooperation of the guide rod at inlet-side end surface center, flap（3）The periphery and transmission nut of back side guide rod（5）One end
The dynamic cooperation of inner hole, transmission nut（5）By thrust bearing（7）With fastening screw nut（11）It is mounted on valve body（1）The water conservancy diversion frame of inner cavity（8）
In centre bore, water conservancy diversion frame（8）Valve body is fixedly mounted on by guiding rib（1）Exit passageway inner wall, mandril（12）One end periphery
With transmission nut（5）The screw thread of other end inner hole cooperates, mandril（12）Other end movable set is in valve body（1）Exit passageway
The guide ring of inner wall（9）In centre bore, mandril（12）Periphery and guide ring（9）Axial bond and axial groove are used between centre bore
It cooperates, in flap（3）The back side and transmission nut（5）Spring spring is installed between radial convex shoulder（4）；In transmission nut（5）
Periphery is equipped with transmission device, which includes intermeshing driving gear（13）And driven gear（6）, driven gear
（6）It is fixedly mounted on transmission nut with one heart（5）On periphery, driving gear（13）It is fixedly connected on valve rod with one heart（14）One
End, valve rod（14）The other end passes through valve body（1）, bracket（25）With handwheel（24）It is fixedly connected, in valve rod（14）Periphery and valve
Body（1）Between airtight and watertight padding is set（16）.
2. the check-valves according to claim 1 with break-in facility, it is characterized in that driving gear（13）And driven gear
（6）It is intermeshed using bevel gear, the center line of the two is mutually perpendicular to.
3. the check-valves according to claim 2 with break-in facility, it is characterized in that driven gear（6）Inner hole and transmission spiral shell
It is female（5）It is cooperated and is connected using axial bond and axial groove between periphery, driven gear（6）Both ends of the surface are fitted in transmission nut
（5）The radial convex shoulder and water conservancy diversion frame of periphery（8）Thrust bearing in inner hole radial direction step（7）Between.
4. the check-valves according to claim 1 or 2 or 3 with break-in facility, it is characterized in that water conservancy diversion frame（8）Have and valve
Body（1）The outer conical surface of the similar streamline of internal chamber wall, the outer conical surface and valve body（1）The annular flow of homalographic is constituted between internal chamber wall
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958917.0A CN108869810A (en) | 2018-08-22 | 2018-08-22 | Check-valves with break-in facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958917.0A CN108869810A (en) | 2018-08-22 | 2018-08-22 | Check-valves with break-in facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869810A true CN108869810A (en) | 2018-11-23 |
Family
ID=64321445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810958917.0A Pending CN108869810A (en) | 2018-08-22 | 2018-08-22 | Check-valves with break-in facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108869810A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017509A (en) * | 2021-11-16 | 2022-02-08 | 上海阀门厂股份有限公司 | Axial flow valve easy to disassemble |
| CN117345924A (en) * | 2023-12-04 | 2024-01-05 | 杭州先锋电子技术股份有限公司 | Electric stop valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140453Y (en) * | 1992-04-10 | 1993-08-18 | 辽宁省铁岭阀门厂 | Fluid regulating stop-check valve |
| KR19990014484A (en) * | 1998-11-16 | 1999-02-25 | 봉삼순 | Expansion pipe valve |
| CN201764035U (en) * | 2010-09-14 | 2011-03-16 | 上海伟伦阀门有限公司 | Low-pressure drop check valve |
| CN104896155A (en) * | 2015-06-09 | 2015-09-09 | 许炎章 | Stop check valve for industrial refrigeration |
| CN106195363A (en) * | 2016-08-31 | 2016-12-07 | 浙江新旭阀业有限公司 | A kind of band quiet soft-sealing check valve of exhaust apparatus formula |
| CN208871101U (en) * | 2018-08-22 | 2019-05-17 | 环球阀门集团有限公司 | Check-valves with break-in facility |
-
2018
- 2018-08-22 CN CN201810958917.0A patent/CN108869810A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140453Y (en) * | 1992-04-10 | 1993-08-18 | 辽宁省铁岭阀门厂 | Fluid regulating stop-check valve |
| KR19990014484A (en) * | 1998-11-16 | 1999-02-25 | 봉삼순 | Expansion pipe valve |
| CN201764035U (en) * | 2010-09-14 | 2011-03-16 | 上海伟伦阀门有限公司 | Low-pressure drop check valve |
| CN104896155A (en) * | 2015-06-09 | 2015-09-09 | 许炎章 | Stop check valve for industrial refrigeration |
| CN106195363A (en) * | 2016-08-31 | 2016-12-07 | 浙江新旭阀业有限公司 | A kind of band quiet soft-sealing check valve of exhaust apparatus formula |
| CN208871101U (en) * | 2018-08-22 | 2019-05-17 | 环球阀门集团有限公司 | Check-valves with break-in facility |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017509A (en) * | 2021-11-16 | 2022-02-08 | 上海阀门厂股份有限公司 | Axial flow valve easy to disassemble |
| CN114017509B (en) * | 2021-11-16 | 2023-09-29 | 上海阀门厂股份有限公司 | Easy-to-detach axial-flow valve |
| CN117345924A (en) * | 2023-12-04 | 2024-01-05 | 杭州先锋电子技术股份有限公司 | Electric stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181123 |