CN107035899A - A kind of kingston valve with check function - Google Patents
A kind of kingston valve with check function Download PDFInfo
- Publication number
- CN107035899A CN107035899A CN201710297404.5A CN201710297404A CN107035899A CN 107035899 A CN107035899 A CN 107035899A CN 201710297404 A CN201710297404 A CN 201710297404A CN 107035899 A CN107035899 A CN 107035899A
- Authority
- CN
- China
- Prior art keywords
- valve
- kingston
- flap
- check function
- bonnet
- 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
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
- 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
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/487—Attaching valve members to screw-spindles by a fixing element extending in the axial direction of the spindle, e.g. a screw
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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
- F16K15/1826—Check valves which can be actuated by a pilot valve
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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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
-
- 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
Abstract
The present invention relates to valve technology field, more particularly to a kind of kingston valve with check function, including：Electric device, lifting device, valve rod, bonnet, seal assembly, valve body, flap, valve clack cover and spring.Electric device is connected with lifting device.Lifting passage, access road and the exit passageway interconnected is provided with valve body, the first sealed end is provided between access road and exit passageway；The outside of flap is provided with the second sealed end.Bonnet is fixedly connected with lifting the port of passage；Offered on bonnet in mounting hole, mounting hole and set seal assembly.Valve clack cover is fixedly connected with the opening of valve body；One end of valve rod is connected with lifting device, and the other end is arranged on inside flap through seal assembly and valve clack cover；Valve rod coordinates with seal assembly screw thread.Spring built in flap, one end of spring is abutted with valve rod, and the other end is abutted with valve clack cover.The kingston valve with check function that the present invention is provided, can prevent inwelling, improve the security of naval vessels.
Description
Technical field
The present invention relates to valve technology field, more particularly to a kind of kingston valve with check function.
Background technology
Kingston valve is also known as sea cock and valve, refer to be applied to submarine pipeline on valve general designation, generally include valve body, valve rod and
The components such as flap, valve body is provided with inlet and outlet, and flap is engaged with valve body, and valve rod is connected with flap.Current kingston valve exists
It is widely applied on steamer and other navigating equipments, existing naval vessels are typically fitted with making on kingston valve, current naval vessels
It is CB587-2004 ship mark brass kingston valve, operating pressure is only 3MPa, and the valve can only be manually operated, automaticity
It is low.The other valve is without check function, and the problem of there is inwelling in use have impact on the security of naval vessels.
The content of the invention
The embodiment of the present invention solves the sea of kingston valve in the prior art by providing a kind of kingston valve with check function
Water pours in down a chimney technical problem, and the kingston valve provided in an embodiment of the present invention with check function can prevent kingston valve in use
Seawater enters valve inner through valve outlet, improves the security of naval vessels；And opening for kingston valve is controlled using electric machine
Close, improve the automaticity of kingston valve.
The invention provides a kind of kingston valve with check function, including：Electric device, lifting device, valve rod, bonnet,
Seal assembly, valve body, flap, valve clack cover and spring；
The electric device is connected with the lifting device and drives the lifting device to rotate；
It is provided with lifting passage, access road and the exit passageway interconnected in the valve body, the lifting passage, enters
Port and the ft connection of mouth passage and exit passageway；
The first sealed end is provided between the access road and the exit passageway；The outside of the flap is provided with
Two sealed ends；The flap is arranged in the valve body, and first sealed end is engaged with second sealed end；
The bonnet is fixedly connected with the port of the lifting passage；Mounting hole, the installation are offered on the bonnet
The seal assembly is set in hole；
The flap is the cavity body structure for being provided with opening, and the valve clack cover is fixedly connected with the opening；
One end of the valve rod is connected with the lifting device, and the other end is stretched through the seal assembly and the valve clack cover
Enter inside the flap；The valve rod coordinates with the seal assembly screw thread；
Spring built in the flap, one end of the spring is abutted with the valve rod, and the other end is abutted with the valve clack cover.
Further, in addition to：Support meanss；
One end of the support meanss is fixedly connected with the electric device, and the other end is fixedly connected with the bonnet；
The lifting device is arranged on the inside of the support meanss.
Further, the seal assembly includes：Gland, airtight and watertight padding and bushing；
The gland is fixed in one end of the mounting hole, and the other end fixes the bushing；
One end of the valve rod is connected with the lifting device, and the other end passes through the gland and bushing；The valve
Bar coordinates with the gland screw thread；
The airtight and watertight padding is filled between the gland and the bushing.
Further, the airtight and watertight padding is flexible graphite packing.
Further, in addition to：First bolt and the second bolt；
One end of the support meanss is fixedly connected by first bolt with the electric machine, and the other end passes through institute
The second bolt is stated to be fixedly connected with the bonnet.
Further, in addition to：Locked spacer and retainer nut；
The retainer nut is fastened on the outer end of the valve clack cover；
The locked spacer is arranged on the inside of the retainer nut.
Further, the access road and the lifting passage are arranged on the side of first sealed end, it is described go out
Mouth passage is arranged on the opposite side of first sealed end.
Further, in addition to：Gasket seal；
Contact surface between the bonnet and the valve body is sealed by the gasket seal.
Further, the gasket seal is soft graphite SW with outside ring.
Further, the end of the valve rod on the inside of the flap is provided with spacing preiection；
The spring housing is on the valve rod, and one end of the spring is abutted with the valve clack cover, the other end and the limit
Position is raised to abut.
One or more technical schemes provided in an embodiment of the present invention, at least possess following beneficial effect or advantage：
Kingston valve provided in an embodiment of the present invention with check function, under normal conditions because valve rod remains static, bullet
Spring applies active force to valve clack cover, supports first sealed end of the second sealed end that valve clack cover drives flap with being set in valve body
Connect, so as to cut off the connection of access road and exit passageway, prevent inwelling, improve the security of naval vessels.It is of the invention real
The kingston valve with check function of example offer is provided, the opening and closing of kingston valve is controlled using electric machine, can be by host computer to motor
It is controlled, improves the automaticity of kingston valve.Kingston valve provided in an embodiment of the present invention with check function, lifting dress
Put and coordinate with valve rod, due to valve rod and the cooperation of seal assembly screw thread, the gyration of valve rod can be converted to lifter motion, reduced
The frictional dissipation of seal assembly, improves the service life of kingston valve.
Brief description of the drawings
Fig. 1 is the kingston valve structural representation provided in an embodiment of the present invention with check function；
Fig. 2 is seal component architecture schematic diagram provided in an embodiment of the present invention；
Fig. 3 is flap provided in an embodiment of the present invention and intraware assembling figure.
Embodiment
The embodiment of the present invention solves the sea of kingston valve in the prior art by providing a kind of kingston valve with check function
Water pours in down a chimney technical problem, and the kingston valve provided in an embodiment of the present invention with check function can prevent kingston valve in use
Seawater enters valve inner through valve outlet, improves the security of naval vessels；And opening for kingston valve is controlled using electric machine
Close, improve the automaticity of kingston valve.
Referring to Fig. 1-Fig. 3, the embodiments of the invention provide a kind of kingston valve with check function, including：Electric device 1,
Lifting device 2, valve rod 10, bonnet 5, seal assembly, valve body 7, flap 8, valve clack cover 19 and spring 21.Electric device 1 and lifting
Device 2 connects and drives lifting device 2 to rotate.The lifting passage 6 interconnected, access road 11 are provided with valve body 7 and is gone out
Mouth passage 9, port and the ft connection of lifting passage 6, access road 11 and exit passageway 9.Access road 11 and exit passageway 9
Between be provided with the first sealed end 14；The outside of flap 8 is provided with the second sealed end 20；Flap 8 is arranged in valve body 7, and first
Sealed end 14 is engaged with the second sealed end 20.Bonnet 5 is fixedly connected with lifting the port of passage 6；Installation is offered on bonnet 5
Seal assembly is set in hole, mounting hole.Flap 8 is the cavity body structure for being provided with opening, and valve clack cover 19 is fixed with the opening on flap 8
Connection.One end of valve rod 10 is connected with lifting device 2, and the other end is stretched into inside flap 8 through seal assembly and valve clack cover 19；
Valve rod 10 coordinates with seal assembly screw thread.Spring 21 built in flap 8, one end of spring 21 is abutted with valve rod 10, the other end and valve
Valve lid 19 is abutted.
Such scheme is connect, the kingston valve provided in an embodiment of the present invention with check function also includes：Support meanss 3.Support
One end of device 3 is fixedly connected with electric device 1, and the other end is fixedly connected with bonnet 5；Lifting device 2 is arranged on the support
The inner side of device 3.
Such scheme is connect, seal assembly includes：Gland 12, airtight and watertight padding 15 and bushing 16.One end of mounting hole is consolidated
Determine gland 12, other end stationary bushing 16；One end of valve rod 10 is connected with lifting device 2, and the other end passes through gland
12 and bushing 16；Valve rod 10 coordinates with the screw thread of gland 12；Airtight and watertight padding 15 is filled between gland 12 and bushing 16.
Such scheme is connect, the airtight and watertight padding 15 is flexible graphite packing.
Above-mentioned either a program is connect, the kingston valve provided in an embodiment of the present invention with check function also includes：First bolt 13
And second bolt 4.One end of support meanss 3 is fixedly connected by the first bolt 13 with electric machine, and the other end passes through the second spiral shell
Bolt 4 is fixedly connected with bonnet 5.
Above-mentioned either a program is connect, the kingston valve provided in an embodiment of the present invention with check function also includes：Locked spacer 18
And retainer nut 17.Retainer nut 17 is fastened on the outer end of valve clack cover 19, prevents valve clack cover 19 from being come off with flap 8.
Above-mentioned either a program is connect, access road 11 and lifting passage 6 are arranged on the side of the first sealed end 14, exit passageway
9 are arranged on the opposite side of the first sealed end 14.
Above-mentioned either a program is connect, the kingston valve provided in an embodiment of the present invention with check function also includes：Gasket seal；Valve
Contact surface between lid 5 and valve body 7 is sealed by gasket seal.
Such scheme is connect, gasket seal is soft graphite SW with outside ring.
Above-mentioned either a program is connect, the end of the valve rod 10 of the inner side of flap 8 is provided with spacing preiection 22；Spring 21 is enclosed on valve rod
On 10, one end of spring 21 is abutted with valve clack cover 19, and the other end is abutted with spacing preiection 22.
The kingston valve with check function provided with reference to specific embodiment the present invention is illustrated：
Referring to Fig. 1, the kingston valve with check function that a kind of utilization titanium alloy material is made is present embodiments provided, is wrapped
Include：Electric device 1, lifting device 2, support meanss 3, bolt, valve rod 10, bonnet 5, seal assembly, valve body 7, gasket seal, valve
Valve 8, valve clack cover 19, locked spacer 18, retainer nut 17 and spring 21.Wherein, seal assembly includes：Gland 12, sealing
Filler 15 and bushing 16.
Referring to Fig. 1, one end of support meanss 3 is fixedly connected by the first bolt 13 with the shell of electric device 1, and the other end leads to
The second bolt 4 is crossed to be fixed together with bonnet 5 and valve body 7；Contact surface between bonnet 5 and valve body 7 passes through gasket seal
Sealing, the gasket seal uses soft graphite SW with outside ring.Motor, clutch, decelerator and hand behaviour are set in electric device 1
Unit, by switch clutch realize motor be connected by decelerator with lifting device 2 or hand operating unit by decelerator with carrying
Device 2 is risen to connect.Lifting device 2 is arranged on the inner side of support meanss 3, and electronic or hand operating unit driving lifting device 2 rotates.Valve body
The lifting passage 6 interconnected, access road 11 and exit passageway 9, lifting passage 6, access road 11 and outlet are provided with 7
The port of passage 9 and ft connection.Referring to Fig. 1 and Fig. 3, the first sealed end is provided between access road 11 and exit passageway 9
14；The outside of flap 8 is provided with the second sealed end 20；Flap 8 is arranged in valve body 7, the first sealed end 14 and the second sealed end
20 are engaged.Referring to Fig. 1-Fig. 3, bonnet 5 is fixedly connected with lifting the port of passage 6；Mounting hole is offered on bonnet 5, is installed
Gland 12, other end stationary bushing 16 are fixed in the one end in hole；Airtight and watertight padding is filled between gland 12 and bushing 16
15, the airtight and watertight padding 15 uses flexible graphite packing.Flap 8 is on the cavity body structure for being provided with opening, valve clack cover 19 and flap 8
Opening be fixedly connected；Retainer nut 17 is fastened on the outer end of valve clack cover 19, and locked spacer 18 is arranged on the inner side of retainer nut 17,
Retainer nut 17 is used to prevent valve clack cover 19 from coming off with flap 8.Referring to Fig. 1 and Fig. 3, one end and the lifting device 2 of valve rod 10 connect
Connect, the other end sequentially passes through gland 12, bushing 16 and valve clack cover 19 and stretched to inside flap 8；Valve rod 10 and filler pressure
The screw thread of lid 12 coordinates；The end of the valve rod 10 of the inner side of flap 8 is provided with spacing preiection 22, and spring 21 is enclosed on valve rod 10, spring
21 one end is abutted with valve clack cover 19, and the other end is abutted with spacing preiection 22.
In the present embodiment, access road 11 and lifting passage 6 are arranged on the side of the first sealed end 14, and exit passageway 9 is set
Put the opposite side in the first sealed end 14；Access road 11 and the vertical distribution of exit passageway 9.
The course of work for the kingston valve with check function that the present embodiment is provided is as follows：It is maritime using this referring to Fig. 1-Fig. 3
Under 300 DEG C of steam nitrogen mixtures inside valve discharge naval vessels, normality, the second sealed end 20 compresses first under the action of the spring 21
Sealed end 14.When the pressure rise in access road 11 to certain value, gases at high pressure apply to flap 8 and valve clack cover 19 presses
Power, the further compression spring 21 of valve clack cover 19 simultaneously pushes up valve opening valve 8, the first sealed end 14 is separated with the second sealed end 20, steam
Nitrogen mixture enters exit passageway 9 from access road 11 and discharged.After the pressure in access road 11 is down to setting, valve
Valve 8 is resetted under the action of the spring 21, and the first sealed end 14 is fitted with the second sealed end 20, block connection access road 11 and
Exit passageway 9, plays the function of anti-inwelling.When occurring special circumstances, lifting device 2 is driven to revolve by electric device 1
Turn, gyration is switched to elevating movement by lifting device 2 with ovable valve stem 10, manipulate valve rod 10 and rise, compression spring 21 compresses valve
Valve 8, makes the first sealed end 14 suit with the second sealed end 20, blocks the first passage and second channel of connection, and kingston valve is tight
It is anxious to close.After kingston valve emergency cut-off, the output torque of control electric device 1 is more than the elastic force produced when spring 21 compresses, with
The rise of the pressure value of access road 11, spring 21 no longer pushes up valve opening valve 8, and the first sealed end 14 keeps cutting with the second sealed end 20
Conjunction state.Kingston valve can be switched to normality by closing electric device 1.
One or more technical schemes provided in an embodiment of the present invention, at least possess following beneficial effect or advantage：
Kingston valve provided in an embodiment of the present invention with check function, under normal conditions because valve rod remains static, bullet
Spring applies active force to valve clack cover, supports first sealed end of the second sealed end that valve clack cover drives flap with being set in valve body
Connect, so as to cut off the connection of access road and exit passageway, prevent inwelling, improve the security of naval vessels.It is of the invention real
The kingston valve with check function of example offer is provided, the opening and closing of kingston valve is controlled using electric machine, can be by host computer to motor
It is controlled, improves the automaticity of kingston valve.Kingston valve provided in an embodiment of the present invention with check function, lifting dress
Put and coordinate with valve rod, due to valve rod and the cooperation of seal assembly screw thread, the gyration of valve rod can be converted to lifter motion, reduced
The frictional dissipation of seal assembly, improves the service life of kingston valve.
It should be noted last that, above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, it all should cover
Among scope of the presently claimed invention.
Claims (10)
1. a kind of kingston valve with check function, it is characterised in that including：Electric device, lifting device, valve rod, bonnet, sealing
Component, valve body, flap, valve clack cover and spring；
The electric device is connected with the lifting device and drives the lifting device to rotate；
Lifting passage, access road and the exit passageway interconnected is provided with the valve body, the lifting passage, entrance lead to
The port and ft connection of road and exit passageway；
The first sealed end is provided between the access road and the exit passageway；It is close that the outside of the flap is provided with second
End-blocking；The flap is arranged in the valve body, and first sealed end is engaged with second sealed end；
The bonnet is fixedly connected with the port of the lifting passage；Offered on the bonnet in mounting hole, the mounting hole
If the seal assembly；
The flap is the cavity body structure for being provided with opening, and the valve clack cover is fixedly connected with the opening；
One end of the valve rod is connected with the lifting device, and the other end stretches into institute through the seal assembly and the valve clack cover
State inside flap；The valve rod coordinates with the seal assembly screw thread；
Spring built in the flap, one end of the spring is abutted with the valve rod, and the other end is abutted with the valve clack cover.
2. the kingston valve as claimed in claim 1 with check function, it is characterised in that also include：Support meanss；
One end of the support meanss is fixedly connected with the electric device, and the other end is fixedly connected with the bonnet；
The lifting device is arranged on the inside of the support meanss.
3. the kingston valve as claimed in claim 2 with check function, it is characterised in that the seal assembly includes：Filler pressure
Lid, airtight and watertight padding and bushing；
The gland is fixed in one end of the mounting hole, and the other end fixes the bushing；
One end of the valve rod is connected with the lifting device, and the other end passes through the gland and bushing；The valve rod with
The gland screw thread coordinates；
The airtight and watertight padding is filled between the gland and the bushing.
4. the kingston valve as claimed in claim 3 with check function, it is characterised in that the airtight and watertight padding is filled out for soft graphite
Material.
5. the kingston valve with check function as described in claim any one of 1-4, it is characterised in that also include：First bolt
And second bolt；
One end of the support meanss is fixedly connected by first bolt with the electric machine, and the other end passes through described
Two bolts are fixedly connected with the bonnet.
6. the kingston valve with check function as described in claim any one of 1-4, it is characterised in that also include：Retainer nut
And locked spacer；
The retainer nut is fastened on the outer end of the valve clack cover；
The locked spacer is arranged on the inside of the retainer nut.
7. the kingston valve with check function as described in claim any one of 1-4, it is characterised in that the access road and institute
The side that lifting passage is arranged on first sealed end is stated, the exit passageway is arranged on the another of first sealed end
Side.
8. the kingston valve with check function as described in claim any one of 1-4, it is characterised in that also include：Gasket seal；
Contact surface between the bonnet and the valve body is sealed by the gasket seal.
9. the kingston valve as claimed in claim 8 with check function, it is characterised in that the gasket seal is soft graphite gold
Belong to spirotallic gasket.
10. the kingston valve with check function as described in claim any one of 1-4, it is characterised in that on the inside of the flap
The end of valve rod is provided with spacing preiection；
The spring housing is on the valve rod, and one end of the spring is abutted with the valve clack cover, the other end and the limit convex
Rise and abut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710297404.5A CN107035899A (en) | 2017-04-28 | 2017-04-28 | A kind of kingston valve with check function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710297404.5A CN107035899A (en) | 2017-04-28 | 2017-04-28 | A kind of kingston valve with check function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107035899A true CN107035899A (en) | 2017-08-11 |
Family
ID=59537788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710297404.5A Pending CN107035899A (en) | 2017-04-28 | 2017-04-28 | A kind of kingston valve with check function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107035899A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354081A (en) * | 2007-07-27 | 2009-01-28 | 张跃 | Electric regulating valve capable of completely cutting off seal |
| CN201992147U (en) * | 2011-04-13 | 2011-09-28 | 福建菲达阀门有限公司 | Structure of novel stop check valve |
| CN202252179U (en) * | 2011-10-14 | 2012-05-30 | 南通市电站阀门有限公司 | Stop check valve for high-pressure bellows |
| CN104896155A (en) * | 2015-06-09 | 2015-09-09 | 许炎章 | Stop check valve for industrial refrigeration |
| CN206093081U (en) * | 2016-09-07 | 2017-04-12 | 中国船舶重工集团公司第七一九研究所 | Low noise stop check valve |
| CN207034285U (en) * | 2017-04-28 | 2018-02-23 | 武汉武船机电模块有限责任公司 | A kind of kingston valve with check function |
-
2017
- 2017-04-28 CN CN201710297404.5A patent/CN107035899A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354081A (en) * | 2007-07-27 | 2009-01-28 | 张跃 | Electric regulating valve capable of completely cutting off seal |
| CN201992147U (en) * | 2011-04-13 | 2011-09-28 | 福建菲达阀门有限公司 | Structure of novel stop check valve |
| CN202252179U (en) * | 2011-10-14 | 2012-05-30 | 南通市电站阀门有限公司 | Stop check valve for high-pressure bellows |
| CN104896155A (en) * | 2015-06-09 | 2015-09-09 | 许炎章 | Stop check valve for industrial refrigeration |
| CN206093081U (en) * | 2016-09-07 | 2017-04-12 | 中国船舶重工集团公司第七一九研究所 | Low noise stop check valve |
| CN207034285U (en) * | 2017-04-28 | 2018-02-23 | 武汉武船机电模块有限责任公司 | A kind of kingston valve with check function |
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