CN108547980A - A kind of check valve with operating device - Google Patents
A kind of check valve with operating device Download PDFInfo
- Publication number
- CN108547980A CN108547980A CN201810721070.4A CN201810721070A CN108547980A CN 108547980 A CN108547980 A CN 108547980A CN 201810721070 A CN201810721070 A CN 201810721070A CN 108547980 A CN108547980 A CN 108547980A
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- rocking bar
- flow channel
- valve body
- 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
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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
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
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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
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
- F16K15/1821—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for check valves with a hinged or pivoted closure member
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0227—Check valves or pivoted valves with the valve members swinging around an axis located at the edge of or outside the valve member
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a kind of check valves with operating device, belong to valve technology field, including valve body and valve deck, valve body is connected with valve deck by bolt, flow channel and flow pass are equipped in valve body, flow channel end and flow pass end are both provided with ring flange, valve shaft is set in valve body, rocking bar is connected on valve shaft, 2 springs are provided on rocking bar, the spring other end is fixedly connected on flow pass, rocking bar connects flap by positioning pin, flap and valve body junction are provided with sealing ring A, flap and flow pass are adapted, the bottom of flow channel is equipped with extension tube attached, extension tube attached bottom end is equipped with lower cover, screens ring and filter core are equipped in flow channel, the filter core other end extends into extension tube attached and is fixedly connected with lower cover；Turntable is arranged on holder in connecting bracket on valve deck, and turntable is connected with threaded stem, and valve rod runs through valve deck and holder, and mechanical seal ring, depressed stem rocking bar, turntable and handwheel engagement are provided at valve rod and valve deck cooperation.
Description
Technical field
The invention belongs to valve technology fields, and in particular to a kind of check valve with operating device.
Background technology
Check-valves refers to being flowed and automatic open and close flap by medium itself, for the valve for preventing medium from flowing backwards, also known as
Non-return valve, check valve and reflux valve.Check-valves belongs to a kind of automatic valve, and main function is to prevent medium from flowing backwards, preventing from pumping
And drive motor reversion and vessel media are released.In general, fluid under pressure opens the flap of check-valves,
And flow to outlet side from inlet side.When import lateral pressure is less than outlet side, effect of the flap in Fluid pressure and gravity itself
Under automatically channel is closed, prevent fluid countercurrent current.However, existing check-valves, when flowing back closing, shock is very big, may
Cause liquid hammer in fluid pipeline, generate noise, even result in the damage of valve parts, some operating modes have noise requirements or
Medium has particular/special requirement that cannot hit, and existing check-valves cannot use in this case.
Notification number is CN207421410U, and the day for announcing discloses one kind for the Chinese patent literature on May 29th, 2018 and stops
Return valve, which is characterized in that including flap shaft and buffer gear；The buffer gear includes lever and cylinder, and the one of the lever
End is fixedly connected with the flap shaft, and the other end of the lever is equipped with weight；The piston rod of the cylinder and the lever
Hinged, when the lever is rotated around the flap shaft, the lever can drive the piston rod of the cylinder flexible.
When patent check-valves reflux is closed, flap drives flap shaft to be rotated counterclockwise around the axis of flap shaft, to band
Dynamic lever is rotated counterclockwise around the axis of flap shaft, in lever rotation, the piston rod of cylinder can be driven to be moved towards cylinder barrel,
Under the action of cylinder and weight, the rotational velocity of flap shaft reduces, and realizes check-valves slowly closing, reduces shock and makes an uproar
Sound, but may build up on valve seat containing solid particle polluter in fluid so that because between spool and valve seat when valve is closed
There is gap and fit badly, not can effectively prevent medium counter flow, and under the conditions of special operation condition, cannot achieve positive closing.
Invention content
The purpose of the present invention is to provide a kind of check valves with filtering and check function, not only can avoid in fluid
Solid particle polluter is gathered on flap and flow channel, slows down impact of the fluid to flap and flow channel significantly, ensures stream
The stability of body flowing, can reduce production and installation cost, simplify pipeline equipment, installation and repair and be more convenient, and in spy
Under different working condition, positive closing can be realized.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of check valve with operating device, including valve body and valve deck, the valve body are connected with valve deck by bolt, the valve body
Interior to be equipped with flow channel and flow pass, the flow channel end and flow pass end are both provided with ring flange, feature
It is：Valve shaft is set in the valve body, is connected with rocking bar on the valve shaft, 2 springs, the spring is provided on the rocking bar
The other end is fixedly connected on flow pass, and the rocking bar connects flap by positioning pin, and the flap and valve body junction are set
It is equipped with sealing ring A, the flap and flow pass are adapted, and the bottom of the flow channel is equipped with extension tube attached, the extension tube attached
It is connected to flow channel, the extension tube attached bottom end is equipped with lower cover, and screens ring, the screens ring clamping are equipped in the flow channel
Filter core, the filter core other end extend into extension tube attached and are fixedly connected with lower cover；Connecting bracket on the valve deck, on the holder
Turntable is set, and the turntable is connected with threaded stem, and the valve rod runs through valve deck and holder, is set at the valve rod and valve deck cooperation
It is equipped with mechanical seal ring, the rocking bar in the depressed stem valve body, the turntable and handwheel engagement.
Preferably, the rocking bar back setting can be moved downward the boss of active force by valve rod.
Preferably, sealing ring B is equipped at the cooperation of the valve deck and valve body.
Preferably, the lower lid is equipped with mudhole, and blowdown valve is equipped in the mudhole.
Preferably, the ring flange is provided with sealing ring mounting groove and 6 bolts hole.
Preferably, the flow channel, flow pass, flap, rocking bar, valve shaft and lower interior surface carry out at electrodeposited chromium
Reason.
Preferably, rocking handle is set on the handwheel.
The technical program has the beneficial effect that：
One, the check valve provided by the invention with operating device, the valve body is interior to be arranged valve shaft, is connected with and shakes on the valve shaft
Bar is provided with 2 springs on the rocking bar, and the spring other end is fixedly connected on flow pass, and the setting of spring is in valve
Reduce shock of the rocking bar to flow pass when valve is opened, reduce shock of the flap to flow channel when flap is closed, reduction is made an uproar
Sound and the service life for increasing check valve；The rocking bar connects flap, the flap and the setting of valve body junction by positioning pin
There are sealing ring A, sealing ring A that rubber seal, the setting of sealing ring A is used to strengthen the leakproofness at flap, effectively prevent being situated between
Matter adverse current；The flap and flow pass are adapted, and the bottom of the flow channel is equipped with extension tube attached, the extension tube attached and inflow
Channel is connected to, and the extension tube attached bottom end is equipped with lower cover, and screens ring is equipped in the flow channel, and the screens ring is clamped filter core,
The filter core other end extends into extension tube attached and is fixedly connected with lower cover, miscellaneous containing solid particle in the setting reduction fluid of filter core
Matter is gathered on flap so that the phenomenon that flap fits badly when closing because there is gap between flap and flow channel, card
The setting of position ring facilitates the installation of filter core, the presence of screens ring, liquid to be difficult to start filter core when flowing, and ensures the effect of filtering
Fruit；Turntable is arranged on the holder in connecting bracket on the valve deck, and the turntable is connected with threaded stem, and the valve rod runs through
Mechanical seal ring is provided at valve deck and holder, the valve rod and valve deck cooperation, the rocking bar in the depressed stem valve body is described
Turntable and handwheel engagement, according to operating mode situation, can close valve at any time, to make system correctly run, mechanical seal ring setting
Liquid does not leak out when can guarantee the up and down motion of valve rod.
Two, the check valve provided by the invention with operating device, the setting of rocking bar back can be moved downward effect by valve rod
The boss of power, the setting of boss is convenient to be moved downward active force by valve rod.
Three, the check valve provided by the invention with operating device is equipped with sealing ring B at the cooperation of valve deck and valve body, close
Seal B uses rubber seal, the setting of sealing ring B to increase the leakproofness of valve body and valve deck, effectively reduce fluid seepage phenomenon
Generation.
Four, the check valve provided by the invention with operating device, lower lid are equipped with mudhole, are equipped in the mudhole
Blowdown valve is opened the blowdown that can be realized in filter core when routine use by blowdown valve, reduces the work of dismounting lower cover, and use is more square
Just.
Five, the check valve provided by the invention with operating device, ring flange are provided with sealing ring mounting groove and 6 bolts
Hole, 6 bolts hole are uniformly distributed on ring flange, and sealing ring position when sealing ring mounting groove facilitates pipeline to connect is arranged on ring flange
It is fixed, prevent pipeline pipeline water clock caused by sealing ring malposition.
Six, the check valve provided by the invention with operating device, flow channel, flow pass, flap, rocking bar, valve shaft
Electrodeposited chromium processing is carried out with lower interior surface, improves flow channel, flow pass, flap, rocking bar, valve shaft and lower interior surface
Finish and corrosion resistance, reduce impurity in flow channel, the heap of flow pass, flap, rocking bar, valve shaft and lower interior surface
Product, which is formed, to be blocked, and reduces the corrosion of flow channel, flow pass, flap, rocking bar, valve shaft and lower interior surface to which enhancing is unidirectional
The service life of valve.
Seven, the check valve provided by the invention with operating device is arranged rocking handle on handwheel, facilitates and closed under special operation condition
Check valve, operation are more convenient.
Description of the drawings
The present invention it is aforementioned and be detailed description below in conjunction with the following drawings read when become more apparent upon, in attached drawing：
Fig. 1 is the sectional side elevation of the present invention；
Fig. 2 is the structural schematic diagram of ring flange of the present invention；
In figure：
1, valve body；2, valve deck；3, flow channel；4, flow pass；5, ring flange；6, valve shaft；7, rocking bar；8, spring；9, flap；
10, sealing ring A；11, extension tube attached；12, lower cover；13, filter core；14, holder；15, turntable；16, valve rod；17, mechanical seal ring；
18, handwheel；19, boss；20, sealing ring B；21, mudhole；22, sealing ring mounting groove；23, bolt hole；24, rocking handle.
Specific implementation mode
The object of the invention technical solution is realized to further illustrate, need to illustrate below by several specific embodiments
It is that claimed technical solution includes but not limited to following embodiment.
Embodiment 1
As a kind of most basic embodiment of the present invention, present embodiment discloses a kind of check valve with operating device, such as Fig. 1
It is shown, including valve body 1 and valve deck 2, the valve body 1 be connected with valve deck 2 by bolt, and 3 He of flow channel is equipped in the valve body 1
Flow pass 4,3 end of the flow channel and 4 end of flow pass are both provided with ring flange 5, and valve shaft is arranged in the valve body 1
6, rocking bar 7 is connected on the valve shaft 6,2 springs 8 is provided on the rocking bar 7,8 other end of the spring is fixedly connected on
On flow pass 4, the rocking bar 7 connects flap 9 by positioning pin, and the flap 9 and 1 junction of valve body are provided with sealing ring
A10, the flap 9 and flow pass 4 are adapted, and the bottom of the flow channel 3 is equipped with extension tube attached 11,11 He of the extension tube attached
Flow channel 3 is connected to, and 11 bottom end of the extension tube attached is equipped with lower cover 12, and screens ring, the screens ring are equipped in the flow channel 3
It is clamped filter core 13, using using stainless steel filter core, 13 other end of the filter core extends into extension tube attached 11 and under the filter core 13
Lid 12 is fixedly connected；Turntable 15, the turntable 15 and valve rod 16 are arranged on the holder 14 for connecting bracket 14 on the valve deck 2
It is threadedly coupled, the valve rod 16 runs through valve deck 2 and holder 14, and mechanical seal ring is provided at 2 cooperation of the valve rod 16 and valve deck
17, the valve rod 16 pushes the rocking bar 7 in valve body 1, and the turntable 15 and handwheel 18 engage.
Check valve provided by the invention with operating device, the valve body 1 is interior to be arranged valve shaft 6, is connected on the valve shaft 6
There is rocking bar 7,2 springs 8 are provided on the rocking bar 7,8 other end of the spring is fixedly connected on flow pass 4, spring 8
Be arranged and reduce shock of the rocking bar 7 to flow pass 4 when flap 9 is opened, reduce flap 9 when flap 9 is closed and lead to flowing into
The shock in road 3 reduces noise and increases the service life of check valve；The rocking bar 7 connects flap 9, the valve by positioning pin
Valve 9 and 1 junction of valve body are provided with sealing ring A10, and sealing ring A10 uses rubber seal, the setting of sealing ring A10 to strengthen
Leakproofness at flap 9, effectively prevent medium counter flow；The flap 9 and flow pass 4 are adapted, the bottom of the flow channel 3
Portion is equipped with extension tube attached 11, and the extension tube attached 11 is connected to flow channel 3, and 11 bottom end of the extension tube attached is equipped with lower cover 12, the stream
Enter and be equipped with screens ring in channel 3, the screens ring is clamped filter core 13, and 13 other end of the filter core extends into extension tube attached 11 and under
Lid 12 is fixedly connected, and the setting of filter core 13 is reduced to be gathered in containing solid particle polluter on flap 9 in fluid so that flap 9 closes
The phenomenon that being fitted badly when closing because there is gap between flap 9 and flow channel 3, the setting of screens ring facilitates the peace of filter core 13
Dress, the presence of screens ring, liquid flowing are difficult to start filter core 13, ensure the effect of filtering；Connecting bracket on the valve deck 2
14, turntable 15 is set on the holder 14, and the turntable 15 and valve rod 16 are threadedly coupled, and the valve rod 16 is through valve deck 2 and branch
Frame 14 is provided with mechanical seal ring 17 at 2 cooperation of the valve rod 16 and valve deck, and the valve rod 16 pushes the rocking bar 7 in valve body 1,
The turntable 15 and handwheel 18 engage, and according to operating mode situation, can close valve at any time, and to make system correctly run, machinery is close
Liquid does not leak out when the setting of seal 17 can guarantee the up and down motion of valve rod 16.
Embodiment 2
As a kind of preferred embodiment of the present invention, present embodiment discloses a kind of check valves with operating device, such as Fig. 1 institutes
Show, including valve body 1 and valve deck 2, the valve body 1 are connected with valve deck 2 by bolt, flow channel 3 and stream are equipped in the valve body 1
Going out channel 4,3 end of the flow channel and 4 end of flow pass are both provided with ring flange 5, valve shaft 6 are arranged in the valve body 1,
It is connected with rocking bar 7 on the valve shaft 6,2 springs 8 are provided on the rocking bar 7,8 other end of the spring is fixedly connected on stream
Going out on channel 4, the rocking bar 7 connects flap 9 by positioning pin, and the flap 9 and 1 junction of valve body are provided with sealing ring A10,
The flap 9 and flow pass 4 are adapted, and the bottom of the flow channel 3 is equipped with extension tube attached 11, the extension tube attached 11 and inflow
Channel 3 is connected to, and 11 bottom end of the extension tube attached is equipped with lower cover 12, and screens ring, the screens ring clamping are equipped in the flow channel 3
Filter core 13, the filter core 13 using use stainless steel filter core, 13 other end of the filter core extend into extension tube attached 11 and with lower cover 12
It is fixedly connected；Turntable 15,16 screw thread of the turntable 15 and valve rod are arranged on the holder 14 for connecting bracket 14 on the valve deck 2
Connection, the valve rod 16 run through valve deck 2 and holder 14, mechanical seal ring 17, institute are provided at 2 cooperation of the valve rod 16 and valve deck
The rocking bar 7 in the pushing valve body 1 of valve rod 16 is stated, the turntable 15 and handwheel 18 engage.
Preferably, the setting of 7 back of the rocking bar can be moved downward the boss 19 of active force by valve rod 1.
Preferably, sealing ring B20 is equipped at the cooperation of the valve deck 2 and valve body 1.
Preferably, the lower cover 12 is equipped with mudhole 21, and blowdown valve is equipped in the mudhole 21.
As shown in Figure 2, it is preferred that the ring flange 5 is provided with sealing ring mounting groove 22 and 6 bolts hole 23.
Preferably, the flow channel 3, flow pass 4, flap 9, rocking bar 7, valve shaft 6 and 12 inner surface of lower cover carry out
Electrodeposited chromium processing.
Preferably, rocking handle 24 is set on the handwheel 18.
Check valve provided by the invention with operating device, the valve body 1 is interior to be arranged valve shaft 6, is connected on the valve shaft 6
There is rocking bar 7,2 springs 8 are provided on the rocking bar 7,8 other end of the spring is fixedly connected on flow pass 4, spring 8
Be arranged and reduce shock of the rocking bar 7 to flow pass 4 when flap 9 is opened, reduce flap 9 when flap 9 is closed and lead to flowing into
The shock in road 3 reduces noise and increases the service life of check valve；The rocking bar 7 connects flap 9, the valve by positioning pin
Valve 9 and 1 junction of valve body are provided with sealing ring A10, and sealing ring A10 uses rubber seal, the setting of sealing ring A10 to strengthen
Leakproofness at flap 9, effectively prevent medium counter flow；The flap 9 and flow pass 4 are adapted, the bottom of the flow channel 3
Portion is equipped with extension tube attached 11, and the extension tube attached 11 is connected to flow channel 3, and 11 bottom end of the extension tube attached is equipped with lower cover 12, the stream
Enter and be equipped with screens ring in channel 3, the screens ring is clamped filter core 13, and 13 other end of the filter core extends into extension tube attached 11 and under
Lid 12 is fixedly connected, and the setting of filter core 13 is reduced to be gathered in containing solid particle polluter on flap 9 in fluid so that flap 9 closes
The phenomenon that being fitted badly when closing because there is gap between flap 9 and flow channel 3, the setting of screens ring facilitates the peace of filter core 13
Dress, the presence of screens ring, liquid flowing are difficult to start filter core 13, ensure the effect of filtering；Connecting bracket on the valve deck 2
14, turntable 15 is set on the holder 14, and the turntable 15 and valve rod 16 are threadedly coupled, and the valve rod 16 is through valve deck 2 and branch
Frame 14 is provided with mechanical seal ring 17 at 2 cooperation of the valve rod 16 and valve deck, and the valve rod 16 pushes the rocking bar 7 in valve body 1,
The turntable 15 and handwheel 18 engage, and according to operating mode situation, can close valve at any time, and to make system correctly run, machinery is close
Liquid does not leak out when the setting of seal 17 can guarantee the up and down motion of valve rod 16.
The boss 19 that active force can be moved downward by valve rod 16 is arranged in 7 back of rocking bar, and the setting of boss 19 is convenient by valve rod
16 move downward active force.Sealing ring B20 is equipped at the cooperation of valve deck 2 and valve body 1, sealing ring B20 uses rubber seal, close
The setting of seal B20 increases the leakproofness of valve body 1 and valve deck 2, effectively reduces the generation of fluid seepage phenomenon.Lower cover 12 is equipped with
Mudhole 21, is equipped with blowdown valve in the mudhole 21, and blowdown valve is opened the blowdown that can be realized in filter core when routine use,
The work for reducing dismounting lower cover 12, using more convenient.Ring flange 5 is provided with sealing ring mounting groove 22 and 6 bolts hole 23, flange
6 bolts hole 23 are uniformly distributed on disk 5, and sealing ring position when sealing ring mounting groove 22 facilitates pipeline to connect is arranged on ring flange 5
It is fixed, prevent pipeline pipeline water clock caused by sealing ring malposition.Flow channel 3, flow pass 4, flap 9, rocking bar 7,
Valve shaft 6 and 12 inner surface of lower cover carry out electrodeposited chromium processing, improve flow channel 3, flow pass 4, flap 9, rocking bar 7, valve shaft 6
With the finish and corrosion resistance of 12 inner surface of lower cover, impurity is reduced in flow channel 3, flow pass 4, flap 9, rocking bar 7, valve
The accumulation of 12 inner surface of axis 6 and lower cover, which is formed, to be blocked, reduce flow channel 3, flow pass 4, flap 9, rocking bar 7, valve shaft 6 and under
The corrosion of 12 inner surface of lid is to enhance the service life of check valve.Rocking handle 24 is set on handwheel 18, facilitates special operation condition ShiShimonoseki
Check valve is closed, operation is more convenient.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
Describe in detail it is bright, it is all at this it should be understood that above is only a specific embodiment of the present invention, be not intended to restrict the invention
Within the spirit and principle of invention, any modification, equivalent substitution, improvement and etc. done should be included in the protection model of the present invention
Within enclosing.
Claims (7)
1. a kind of check valve with operating device, including valve body（1）And valve deck（2）, the valve body（1）And valve deck（2）Pass through spiral shell
Bolt is connected, the valve body（1）It is interior to be equipped with flow channel（3）And flow pass（4）, the flow channel（3）End and outflow are logical
Road（4）End is both provided with ring flange（5）, it is characterised in that：The valve body（1）Interior setting valve shaft（6）, the valve shaft（6）On
It is connected with rocking bar（7）, the rocking bar（7）On be provided with 2 springs（8）, the spring（8）It is logical that the other end is fixedly connected on outflow
Road（3）On, the rocking bar（7）Flap is connected by positioning pin（9）, the flap（9）And valve body（1）Junction is provided with sealing
Enclose A（10）, the flap（9）And flow pass（4）It is adapted, the flow channel（3）Bottom be equipped with extension tube attached（11）, institute
State extension tube attached（11）And flow channel（3）Connection, the extension tube attached（11）Bottom end is equipped with lower cover（12）, the flow channel（3）
Interior to be equipped with screens ring, the screens ring is clamped filter core（13）, the filter core（13）The other end extends into extension tube attached（11）And under
Lid（12）It is fixedly connected；The valve deck（2）Upper connecting bracket（14）, the holder（14）Upper setting turntable（15）, the turntable
（15）And valve rod（16）It is threadedly coupled, the valve rod（16）Through valve deck（2）And holder（14）, the valve rod（16）And valve deck
（2）Mechanical seal ring is provided at cooperation（17）, the valve rod（16）Push valve body（1）Interior rocking bar（7）, the turntable（15）
And handwheel（18）Engagement.
2. a kind of check valve with operating device according to claim 1, it is characterised in that：The rocking bar（7）Back is set
Setting can be by valve rod（16）Move downward the boss of active force（19）.
3. a kind of check valve with operating device according to claim 1, it is characterised in that：The valve deck（2）And valve body
（1）Cooperation at be equipped with sealing ring B（20）.
4. a kind of check valve with operating device according to claim 1, it is characterised in that：The lower cover（12）It is equipped with
Mudhole（21）, the mudhole（21）It is interior to be equipped with blowdown valve.
5. a kind of check valve with operating device according to claim 1, it is characterised in that：The ring flange（5）Setting
There is sealing ring mounting groove（22）With 6 bolts hole（23）.
6. a kind of check valve with operating device according to claim 1, it is characterised in that：The flow channel（3）, stream
Go out channel（4）, flap（9）, rocking bar（7）, valve shaft（6）And lower cover（12）Inner surface carries out electrodeposited chromium processing.
7. a kind of check valve with operating device according to claim 1, it is characterised in that：The handwheel（18）Upper setting
Rocking handle（24）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810721070.4A CN108547980A (en) | 2018-07-04 | 2018-07-04 | A kind of check valve with operating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810721070.4A CN108547980A (en) | 2018-07-04 | 2018-07-04 | A kind of check valve with operating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108547980A true CN108547980A (en) | 2018-09-18 |
Family
ID=63494218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810721070.4A Pending CN108547980A (en) | 2018-07-04 | 2018-07-04 | A kind of check valve with operating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108547980A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610731A (en) * | 2020-12-10 | 2021-04-06 | 安徽固尔康管业有限公司 | Check valve with filtering function |
| CN113864491A (en) * | 2021-10-22 | 2021-12-31 | 广州市彩蝶节能技术有限公司 | Valve clack opening and closing device and method for fireproof check valve |
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| CN208519229U (en) * | 2018-07-04 | 2019-02-19 | 德阳市迪信佳阀门制造有限公司 | A kind of check valve with operating device |
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| CN112610731A (en) * | 2020-12-10 | 2021-04-06 | 安徽固尔康管业有限公司 | Check valve with filtering function |
| CN113864491A (en) * | 2021-10-22 | 2021-12-31 | 广州市彩蝶节能技术有限公司 | Valve clack opening and closing device and method for fireproof check valve |
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