CN207814561U - Once-through type turns round flap screw down nonreturn valve - Google Patents
Once-through type turns round flap screw down nonreturn valve Download PDFInfo
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- CN207814561U CN207814561U CN201721897656.3U CN201721897656U CN207814561U CN 207814561 U CN207814561 U CN 207814561U CN 201721897656 U CN201721897656 U CN 201721897656U CN 207814561 U CN207814561 U CN 207814561U
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- valve
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- once
- control mouth
- screw down
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Abstract
Include valve body the utility model discloses once-through type revolution flap screw down nonreturn valve, flap, hinge axis I, rocking arm, hinge axis II, roller shaft, idler wheel, valve rod, valve deck, valve stem nut, handwheel, hand wheel nut, valve body is equipped with import, outlet, control mouth, valve body import, outlet, control mouth runner is in Y types, import, outlet is once-through type channel, the axis of control mouth is in 45 °~55 ° angles with outlet axes, valve body control mouth is fixedly connected with valve deck, valve rod enters across valve deck in control mouth passes through idler wheel with rocking arm, roller bearing rolls connection, rocking arm upper end is hinged in valve body control mouth runner by hinge axis I, rocking arm lower part is hinged in the middle part of flap by hinge axis II, it is connected using packing seal between valve deck and valve rod.The utility model is compact-sized, good airproof performance, service life are long, the function of shut-off valve not only may be implemented, but also the function of check-valves may be implemented, a valve is dual-purpose, and overall cost is low.
Description
Technical field
The utility model is related to a kind of technical field of valve, more particularly to once-through type turns round flap screw down nonreturn valve.
Background technology
The occasion of installation check-valves and stop valve is needed at the outlet of Boiler Steam main pipeline, pump discharge end etc., is designed earliest
Design when installation there are one stop valve (such as gate valve, shut-off valve), then a check-valves (such as lift check valve, rotation are installed
Opening formula check-valves etc.), later as the invention of screw down nonreturn valve valve designs, although it is dual-purpose to realize a valve, saved integral into
This, but this traditional screw down nonreturn valve still has following deficiency：
1, valve flowing channel pipeline is designed using S types, and the flow resistance coefficient that this allows for this valve is excessive, leverages pipeline
Negotiability；
2, flap and valve rod are designed using long sleeve clearance fit, this design if gap greatly if flap guiding and sealing
Poor performance；Make the automatic attaching miopragia of flap and valve body sealing surface if gap is small, it is higher to requirement on machining accuracy；
3, flap and valve rod are designed using long sleeve clearance fit, and the stability of guidance quality is poor, vibrations are big, to valve rod
It is affected；
4, flap and valve rod are designed using long sleeve clearance fit, are sliding friction, sliding between valve rod and flap sleeve
Frictional force is big, and using long, abrasion is big, and service life reduces；
5, valve rod driving nut is using fixed nut or movable nut configuration thrust ball bearing or bearing-free, valve rod
Driving moment it is big, while increasing the structure size at driving nut position, occupy big space, increase entire cost.
Utility model content
In order to overcome the shortcomings of existing research, the once-through type that the utility model patent provides turns round flap screw down nonreturn valve
Compact-sized, good airproof performance, service life are long, and the function of shut-off valve not only may be implemented, but also check-valves may be implemented
Function, a valve is dual-purpose, and overall cost is low.To realize that above-mentioned function, the above-mentioned technical problem of the utility model are mainly under passing through
State what technical solution was addressed：
The utility model discloses a kind of once-through types to turn round flap screw down nonreturn valve, including valve body, flap, hinge axis I, shakes
Arm, hinge axis II, roller shaft, idler wheel, valve rod, valve deck, valve stem nut, handwheel, hand wheel nut, valve body be equipped with import,
Outlet, control mouth, valve body import, outlet, control mouth runner are in Y types, and import, outlet are once-through type channel, the axis of control mouth
Be in 45 °~55 ° angles with outlet axes, valve body control mouth is fixedly connected with valve deck, valve rod pass through valve deck enter control mouth it is interior and
Rocking arm rolls connection by idler wheel, roller shaft, and rocking arm upper end is hinged in valve body control mouth runner by hinge axis I, rocking arm
Lower part is hinged in the middle part of flap by hinge axis II, is connected using packing seal between valve deck and valve rod, valve rod top and valve rod
Nut thread connects, and is equipped with handwheel on valve stem nut, hand wheel nut is provided on handwheel.
Further, the flap is bonded with valve body import sealing surface.
Further, the control mouth runner is provided with the protrusion coordinated with rocking arm top.
Further, the hinge axis I is arranged in protrusion.
Further, the roller shaft, idler wheel are arranged in the lower end of valve rod, and roller shaft is located at the middle part of idler wheel.
Further, configuration is equipped with needle bearing and lubricating cup in the valve stem nut, and lubricant grease is noted in lubricating cup.
Further, the flap both ends and valve seal position build-up wear-resistant resistant material.
Further, the rocking arm driving part build-up wear-resistant resistant material.
Further, the valve rod uses abrasion-proof corrosion-proof corrosion material.
Further, the idler wheel uses abrasion-proof corrosion-proof corrosion material.
The operation principle and process of utility model.
Check function：Original state is the state A in flap, rocking arm such as Fig. 1, and valve rod, which is in, at this time opens extreme higher position,
At this moment flap and valve body import sealing surface are palettes, are flowed into from valve body import to outlet by figure arrow direction when there is medium
When, media flow impacts flap, and flap is made to automatically open, and drives rocking arm around hinge axis I to rotate by hinge axis II, makes flap
It is opened to B state in figure, valve rod, which is in, at this time opens extreme higher position；When medium flows to import by figure arrow negative direction from outlet
When (reverse flow), flap drives rocking arm around hinge axis I to revolve under the action of the reverse flow power of medium, by hinge axis II
Turn, flap closes position shown in arrival state A at this time, realizes the automatic closing function of valve, that is, realizes check function.
Cutoff function：When medium presses figure arrow direction from valve body import to outlet proper flow, valve is in open position
It sets, if needing to cut off medium at this time, rotation handwheel drives valve stem nut rotation, valve stem nut rotation that valve rod is made to start
It moves downward, valve rod moves downward through roller shaft, idler wheel acts on rocking arm, and rocking arm around hinge axis I rotates, and rocking arm rotation is made
With on flap, making flap reach state B state by A condition in figure, realizes the closing motion of valve, that is, realize cutoff function.
Valve body import, outlet flow are designed using once-through type channel, make valve flow resistance coefficient relative to traditional cut-off non-return
Valve is substantially reduced using S type runners.
Rocking arm upper end is hinged in valve body control mouth runner by hinge axis I, passes through hinge in the middle part of rocking arm lower part and flap
Chain rivet II is hinged, and flap uses double-strand chain formula rotary type flap design, can reduce the requirement to the machining accuracy of flap in this way,
It can also make flap that can be sealed with automatic attaching with valve body sealing surface simultaneously, ensure that good sealing performance.
Valve rod uses scroll wheel structure to the driving of the rocking arm of flap, is rolling friction between valve rod and rocking arm, and rolling rubs
It wipes smaller than traditional sliding friction frictional resistance；Simultaneously in flap, rocking arm in driving part build-up wear-resistant corrosion resistant material, valve rod,
Idler wheel uses wear-and corrosion-resistant material, substantially reduces the driving moment of valve, improves the service life of valve.
Valve rod drives nut to use upper dress formula valve stem nut, and increases needle bearing, substitute conventional thrust ball bearing and
The design of bearing-free increases grease lubrication, substantially reduces the driving moment of valve, reduces the structure ruler at driving nut position
It is very little, material and space are saved, cost is reduced.
Control mouth runner is provided with the protrusion coordinated with rocking arm top, and hinge axis I is arranged in protrusion.Protrusion is set as
Rocking arm provides enough rotation spaces in control mouth runner around hinge axis I.
The beneficial effects of the utility model：
1, the once-through type of the utility model turns round flap screw down nonreturn valve, and valve body import, outlet flow are logical using once-through type
Road designs, and valve flow resistance coefficient is made to be substantially reduced relative to traditional screw down nonreturn valve S type runners.
2, the once-through type of the utility model turns round flap screw down nonreturn valve, and flap is set using double-strand chain formula rotary type flap
Meter, can reduce the requirement to the machining accuracy of flap, while can also make flap and valve body sealing surface can be with automatic attaching in this way
Sealing, ensure that good sealing performance.
3, the once-through type of the utility model turns round flap screw down nonreturn valve, and valve rod uses idler wheel to the driving of the rocking arm of flap
Formula structure, while in flap, rocking arm in driving part build-up wear-resistant corrosion resistant material, valve rod, idler wheel use wear-and corrosion-resistant material, from
And the driving moment of valve is substantially reduced, improve the service life of valve.
4, the once-through type of the utility model turns round flap screw down nonreturn valve, and valve rod drives nut to use upper dress formula valve rod spiral shell
Mother, and increase needle bearing, the design of conventional thrust ball bearing and bearing-free is substituted, increases grease lubrication, substantially reduces valve
The driving moment of door reduces the structure size at driving nut position, saves space, reduce cost.
5, flap screw down nonreturn valve is compact-sized, good airproof performance, service life are long for the once-through type revolution of the utility model, no
The function of shut-off valve only may be implemented, but also the function of check-valves may be implemented, a valve is dual-purpose, and overall cost is low.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is that the once-through type of the utility model turns round flap screw down nonreturn valve structural schematic diagram.
In figure：1, valve body；2, hinge；3, hinge axis I；4, rocking arm；5, hinge axis II；6, roller shaft；7, idler wheel；8, valve
Bar；9, valve deck；10, valve stem nut；11, handwheel；12, hand wheel nut；13, raised；14, needle bearing；15, lubricating cup.
Specific implementation mode
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear to be made to the scope of protection of the utility model
Define.
As shown in Figure 1, the utility model discloses a kind of once-through types to turn round flap screw down nonreturn valve, including valve body 1, flap
2, hinge axis I 3, Rocker arm 4, hinge axis II 5, roller shaft 6, idler wheel 7, valve rod 8, valve deck 9, valve stem nut 10, handwheel 11, handwheel
Nut 12, valve body 1 are equipped with import, outlet, control mouth, and 1 import of valve body, outlet, control mouth runner are in Y types, and import goes out
Mouth is once-through type channel, and axis and the outlet axes of control mouth are in 45 °~55 ° angles, and 1 control mouth of valve body connects with the fixation of valve deck 9
Connect, valve rod 8 pass through valve deck 9 enter control mouth in Rocker arm 4 by idler wheel 7, roller shaft 6 roll connect, Rocker arm 4 upper end with
Hinged by hinge axis I 3 in 1 control mouth runner of valve body, Rocker arm 4 lower part is hinged with 2 middle part of flap by hinge axis II 5, valve deck 9
It is connect using packing seal between valve rod 8,8 top of valve rod is threadedly coupled with valve stem nut 10, is equipped on valve stem nut 10
Handwheel 11 is provided with hand wheel nut 12 on handwheel 11.
The flap 2 is bonded with 1 import sealing surface of valve body.
The control mouth runner is provided with the protrusion 13 coordinated with Rocker arm 4 top.
The setting of the hinge axis I 3 is in protrusion 13.
The roller shaft 6, idler wheel 7 are arranged in the lower end of valve rod 8, and roller shaft 6 is located at idler wheel
7 middle part.Configuration is equipped with needle bearing 14 and lubricating cup 15 in the valve stem nut 10,
Lubricant grease is noted in lubricating cup 15.
2 both ends of the flap and 1 sealing position build-up wear-resistant resistant material of valve body.
The Rocker arm 4 driving part build-up wear-resistant resistant material.
The valve rod 8 uses abrasion-proof corrosion-proof corrosion material.
The idler wheel 7 uses abrasion-proof corrosion-proof corrosion material.
The operation principle and process of utility model.
Check function：Original state is the state A in flap 2, Rocker arm 4 such as Fig. 1, and valve rod 8, which is in, at this time opens highest order
Set, at this moment flap 2 and 1 import sealing surface of valve body are palettes, when have medium by Fig. 1 arrow directions from 1 import of valve body to
Outlet stream is fashionable, and media flow impacts flap 2, and flap 2 is made to automatically open, and Rocker arm 4 around hinge axis is driven by hinge axis II 5
I 3 rotations, make flap 2 be opened to B state in Fig. 1, and valve rod 8, which is in, at this time opens extreme higher position；When medium presses Fig. 1 arrow negative sides
To when flowing to import reverse flow from outlet, flap 2 is driven under the action of the reverse flow power of medium by hinge axis II 5
Rocker arm 4 around hinge axis I 3 rotates, and flap 2 closes position shown in arrival state A at this time, realizes the automatic closing function of valve, i.e.,
Realize check function.
Cutoff function：When medium is opened by Fig. 1 arrow directions from 1 import of valve body to when exporting proper flow, valve is in
Position, if needing to cut off medium at this time, rotation handwheel 11 drives valve stem nut 10 to rotate, and valve stem nut 10 rotates
Valve rod 8 is set to start to move downward, valve rod 8 moves downward through roller shaft 6, idler wheel 7 acts on Rocker arm 4, Rocker arm 4 around hinge axis
I 3 rotations, Rocker arm 4 turning effort make flap 2 reach state B state by A condition in figure, realize the closing of valve on flap 2
Action, that is, realize cutoff function.
1 import of valve body, outlet flow are designed using once-through type channel, make valve flow resistance coefficient relative to traditional cut-off non-return
Valve is substantially reduced using S type runners.
Rocker arm 4 upper end and hinged by hinge axis I 3 in 1 control mouth runner of valve body, Rocker arm 4 lower part and 2 middle part of flap
Hinged by hinge axis II 5, flap 2 uses double-strand chain formula rotary type flap design, can reduce the essence of the processing to flap 2 in this way
The requirement of degree, while can also make flap 2 that can be sealed with automatic attaching with 1 sealing surface of valve body, it ensure that good sealing performance.
Valve rod 8 uses scroll wheel structure to the driving of the Rocker arm 4 of flap 2, is rolling friction between valve rod 8 and Rocker arm 4,
Rolling friction is smaller than traditional sliding friction frictional resistance；Simultaneously in flap 2, Rocker arm 4 in the anti-corrosion material of driving part build-up wear-resistant
Material, valve rod 8, idler wheel 7 use wear-and corrosion-resistant material, substantially reduce the driving moment of valve, improve the service life of valve.
Valve rod 8 drives nut to use upper dress formula valve stem nut 10, and increases needle bearing, substitutes conventional thrust ball bearing
With the design of bearing-free, increase grease lubrication, substantially reduce the driving moment of valve, reduces the structure ruler at driving nut position
It is very little, material and space are saved, cost is reduced.
Control mouth runner is provided with the protrusion 13 coordinated with Rocker arm 4 top, and the setting of hinge axis I 3 is in protrusion 13.Protrusion 13
The rocking arm 2 that is set as provide enough rotation spaces around hinge axis I 3 in control mouth runner.
The beneficial effects of the utility model：
1, the once-through type of the utility model turns round flap screw down nonreturn valve, and 1 import of valve body, outlet flow are logical using once-through type
Road designs, and valve flow resistance coefficient is made to be substantially reduced relative to traditional screw down nonreturn valve S type runners.
2, the once-through type of the utility model turns round flap screw down nonreturn valve, and flap 2 is set using double-strand chain formula rotary type flap
Meter, can reduce the requirement of the machining accuracy to flap 2, while flap 2 and 1 sealing surface of valve body can also be allow to paste automatically in this way
Sealing is closed, ensure that good sealing performance.
3, the once-through type of the utility model turns round flap screw down nonreturn valve, and valve rod 8 uses the driving of the Rocker arm 4 of flap 2
Scroll wheel structure, while in flap 2, Rocker arm 4 in driving part build-up wear-resistant corrosion resistant material, valve rod 8, idler wheel 7 are using wear-resisting resistance to
Corrosion material improves the service life of valve to substantially reduce the driving moment of valve.
4, the once-through type of the utility model turns round flap screw down nonreturn valve, and valve rod 8 drives nut to use upper dress formula valve rod spiral shell
Mother 10, and increase needle bearing, the design of conventional thrust ball bearing and bearing-free is substituted, increases grease lubrication, substantially reduces
The driving moment of valve reduces the structure size at driving nut position, saves space, reduce cost.
5, flap screw down nonreturn valve is compact-sized, good airproof performance, service life are long for the once-through type revolution of the utility model, no
The function of shut-off valve only may be implemented, but also the function of check-valves may be implemented, a valve is dual-purpose, and overall cost is low.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any change or replacement expected without creative work should be covered within the scope of the utility model.
Therefore, the scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (10)
1. once-through type turns round flap screw down nonreturn valve, which is characterized in that including valve body (1), flap (2), hinge axis I (3), rocking arm
(4), hinge axis II (5), roller shaft (6), idler wheel (7), valve rod (8), valve deck (9), valve stem nut (10), handwheel (11), handwheel
Nut (12), valve body (1) are equipped with import, outlet, control mouth, and valve body (1) import, outlet, control mouth runner are in Y types,
Import, outlet are once-through type channel, and axis and the outlet axes of control mouth are in 45 °~55 ° angles, valve body (1) control mouth and valve
Lid (9) is fixedly connected, and valve rod (8) passes through valve deck (9) to enter in control mouth and rolled by idler wheel (7), roller shaft (6) with rocking arm (4)
Dynamic connection, rocking arm (4) upper end are hinged in valve body (1) control mouth runner by hinge axis I (3), rocking arm (4) lower part and flap
(2) middle part is hinged by hinge axis II (5), is connect using packing seal between valve deck (9) and valve rod (8), valve rod (8) top and
Valve stem nut (10) is threadedly coupled, and is equipped with handwheel (11) on valve stem nut (10), handwheel is provided with hand wheel nut on (11)
(12)。
2. once-through type according to claim 1 turns round flap screw down nonreturn valve, which is characterized in that the flap (2) and valve
Body (1) import sealing surface is bonded.
3. once-through type according to claim 1 turns round flap screw down nonreturn valve, which is characterized in that the control mouth runner is set
It is equipped with the protrusion (13) with the cooperation of rocking arm (4) top.
4. once-through type according to claim 1 turns round flap screw down nonreturn valve, which is characterized in that the hinge axis I (3) is set
It sets in raised (13).
5. once-through type according to claim 1 turns round flap screw down nonreturn valve, which is characterized in that the roller shaft (6), rolling
It takes turns (7) to be arranged in the lower end of valve rod (8), roller shaft (6) is located at the middle part of idler wheel (7).
6. once-through type according to claim 1 turns round flap screw down nonreturn valve, which is characterized in that the valve stem nut (10)
Interior configuration is equipped with needle bearing (14) and lubricating cup (15), and lubricant grease is noted in lubricating cup (15).
7. once-through type according to claim 1 turns round flap screw down nonreturn valve, which is characterized in that flap (2) both ends
With valve body (1) sealing position build-up wear-resistant resistant material.
8. once-through type according to claim 1 turns round flap screw down nonreturn valve, which is characterized in that rocking arm (4) driving
Position build-up wear-resistant resistant material.
9. once-through type according to claim 1 turns round flap screw down nonreturn valve, which is characterized in that the valve rod (8) uses
Abrasion-proof corrosion-proof corrosion material.
10. once-through type according to claim 1 turns round flap screw down nonreturn valve, which is characterized in that the idler wheel (7) and rolling
Wheel shaft (6) uses abrasion-proof corrosion-proof corrosion material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721897656.3U CN207814561U (en) | 2017-12-29 | 2017-12-29 | Once-through type turns round flap screw down nonreturn valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721897656.3U CN207814561U (en) | 2017-12-29 | 2017-12-29 | Once-through type turns round flap screw down nonreturn valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207814561U true CN207814561U (en) | 2018-09-04 |
Family
ID=63328575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721897656.3U Active CN207814561U (en) | 2017-12-29 | 2017-12-29 | Once-through type turns round flap screw down nonreturn valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207814561U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089174A (en) * | 2020-01-17 | 2020-05-01 | 泽尼特泵业(中国)有限公司 | Fluid slag discharge valve structure with sealing structure |
| CN112303252A (en) * | 2020-10-27 | 2021-02-02 | 济南德创试验仪器有限公司 | Stop valve |
| CN113124171A (en) * | 2021-04-13 | 2021-07-16 | 俞伟光 | Scour prevention stop valve |
-
2017
- 2017-12-29 CN CN201721897656.3U patent/CN207814561U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089174A (en) * | 2020-01-17 | 2020-05-01 | 泽尼特泵业(中国)有限公司 | Fluid slag discharge valve structure with sealing structure |
| CN112303252A (en) * | 2020-10-27 | 2021-02-02 | 济南德创试验仪器有限公司 | Stop valve |
| CN113124171A (en) * | 2021-04-13 | 2021-07-16 | 俞伟光 | Scour prevention stop valve |
| CN113124171B (en) * | 2021-04-13 | 2022-06-21 | 君品集团有限公司 | Scour prevention stop valve |
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