CN107676531A - A kind of Intelligent ball valve - Google Patents
A kind of Intelligent ball valve Download PDFInfo
- Publication number
- CN107676531A CN107676531A CN201711094696.9A CN201711094696A CN107676531A CN 107676531 A CN107676531 A CN 107676531A CN 201711094696 A CN201711094696 A CN 201711094696A CN 107676531 A CN107676531 A CN 107676531A
- Authority
- CN
- China
- Prior art keywords
- valve
- alignment pin
- interior
- valve body
- interface channel
- 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.)
- Granted
Links
- 238000009826 distribution Methods 0.000 claims abstract description 36
- 238000003860 storage Methods 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 40
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 54
- 230000005540 biological transmission Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 1
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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a kind of Intelligent ball valve, it is related to Gas Pipe valve technology field, including valve body, valve element in valve body, the valve rod and intelligent object being connected through valve body and with valve element top, also include an alignment pin, a positioning hole is provided with the downside of the valve element, the storage tank of an intelligent object for being used for placement is provided with the downside of the valve body, the alignment pin is fixed through body base and with valve body vertically, alignment pin upper end is interspersed on the downside of valve element in positioning hole, alignment pin lower end is extended on the downside of valve body in storage tank, interface channel is provided with the alignment pin, gas distribution channel is provided with the valve element, a bottom is provided with the storage tank lower ending opening.The present invention propose it is a kind of can long-time storage ball valve dispatch from the factory information and easy take out is changed, safeguards the Intelligent ball valve of intelligent object.
Description
Technical field
The present invention relates to Gas Pipe valve technology field, more particularly to one kind can store ball valve and dispatch from the factory information and monitoring combustion gas
The Intelligent ball valve of pressure in course of conveying.
Background technology
In gas pipeline system, PE ball valves play the on-off action in pipe gas course of conveying, and operating pipeline leads to
Often need to control the fuel gas transmission in downstream by the switch of valve.Valve is before dispatching from the factory, and manufacturer is often on valve
Mark is sticked, with tracing informations such as the production time of the product, production process, the time of making the product in mark.Institute in the market
The valve used only has simple paster to identify substantially, and causes by outdoor environment factor the letter identified on the valve throughout the year
Cease smudgy, can not recognize.When pipe network maintenance workers safeguard valve, it is necessary to by design drawing and consult pipeline paving originally
If associated documents, this process is complex and time-consuming.Also, existing valve seldom has valve during monitoring fuel gas transmission
The function of pressure, even if having, and intelligent object is fixed in valve in door, is used once valve loads pipeline, intelligent mould
Block just safeguard, change by more difficult take out.
The content of the invention
The present invention in order to solve the above problems, propose one kind can long-time storage ball valve dispatch from the factory information and easy taking-up
Change, safeguard the Intelligent ball valve of intelligent object.
To achieve these goals, the present invention uses following technical scheme:A kind of Intelligent ball valve, including valve body, located at valve
Internal valve element, the valve rod and intelligent object being connected through valve body and with valve element top, in addition to an alignment pin, the valve element
Downside is provided with a positioning hole, and the storage tank of an intelligent object for being used for placement, the alignment pin are provided with the downside of the valve body
Run through body base vertically and fixed with valve body, alignment pin upper end is interspersed on the downside of valve element in positioning hole, the extension of alignment pin lower end
On the downside of to valve body in storage tank;
It is provided with interface channel in the alignment pin, the upper side opening of the interface channel is interface channel air inlet, open lower side
For interface channel gas outlet, the interface channel air inlet and interface channel gas outlet are opened in alignment pin side wall, the company
Connect road air inlet to be located in positioning hole, the interface channel gas outlet is located in storage tank;
Gas distribution channel is provided with the valve element, the upper side opening of the gas distribution channel is gas distribution channel air inlet, and open lower side is
Gas distribution channel gas outlet, the gas distribution channel air inlet is on valve element inner hole wall, and the gas distribution channel gas outlet is positioned at positioning
In the side wall of hole;
When valve element and valve body are in connected state, gas distribution channel gas outlet connects with interface channel air inlet;When valve element and valve body are in
Off-state, gas distribution channel gas outlet are staggered with interface channel air inlet;
A bottom is provided with the storage tank lower ending opening, passes through threaded engagement, the intelligence between the bottom and storage tank
Energy module is in storage tank.
Preferably, the alignment pin bottom is provided with a screwed hole and an outer-hexagonal bolt coordinated with screwed hole,
The screwed hole connects with interface channel, and the outer-hexagonal bolt is inverted and is located in screwed hole, and twists and can cut on outer-hexagonal bolt
Connection breaking passage;Thread center's line of the outer-hexagonal bolt overlaps with thread center's line of bottom, and the spiral shell of outer-hexagonal bolt
Line is opposite with the thread rotary orientation of bottom;The bottom upper surface is vertical an interior hexagonal sleeve pipe, and the interior hexagonal its lower end is consolidated
It is scheduled on bottom, upper end is open, and the endoporus cross section of interior hexagonal sleeve pipe is one and matched with outer-hexagonal nuts portion outer-hexagonal
Hexagon, the cap portion of the outer-hexagonal bolt can be fastened on the endoporus of interior hexagonal sleeve pipe and can be along above and below the endoporus of interior hexagonal sleeve pipe
Slide.
The is provided with preferably, offer a sealing ring neck in the alignment pin side wall, in the sealing ring neck
One sealing ring, the interface channel air inlet are located in the first sealing ring.
It is used to seal the second close of gap between alignment pin and positioning hole preferably, being arranged with one on the alignment pin
Seal, second sealing ring are located on the downside of the first sealing ring.
Preferably, the bottom is provided with the 3rd sealing ring for being used for sealing marginal gap between bottom and valve body.
Preferably, it is provided with some installation via holes on the downside of the bottom.
Therefore, the present invention has the advantages that:1st, valve body is in body cavity and intelligence when connecting feed status with valve element
The storage tank of energy module connects also by interface channel with gas distribution channel, the pressure being easy to during intelligent object monitoring fuel gas transmission
Force value;2nd, when valve body and valve element are in off-state, interface channel staggers with gas distribution channel, body cavity and intelligent object it is accommodating
Groove also disconnects, and is easy to intelligent object to take out and safeguards, changes;3rd, the outer-hexagonal bolt of interface channel can be blocked by being provided with, and outside
Hex bolts is opposite with the thread rotary orientation of bottom so that when bottom is unscrewed, outer-hexagonal bolt can block interface channel;So that bottom
When lid screws, outer-hexagonal bolt can discharge connection interface channel, further ensure when safeguarding, changing intelligent object, valve body
Interior combustion gas will not be revealed.
Brief description of the drawings
Fig. 1 is the structural representation of valve body of the present invention and valve element connected state.
Fig. 2 is the structural representation of valve body of the present invention and valve element off-state.
Fig. 3 is the enlarged diagram at a in Fig. 1.
Fig. 4 is the enlarged diagram at b in Fig. 2.
Fig. 5 is the structural representation of alignment pin in the present invention.
Fig. 6 is the structural representation of another angle of alignment pin in the present invention.
Fig. 7 is the front view of alignment pin in the present invention.
Fig. 8 is the sectional view of A-A in Fig. 7.
Fig. 9 is the side view of alignment pin in the present invention.
Figure 10 is the structural representation of bottom in the present invention.
Figure 11 is the structural representation of another angle of bottom in the present invention.
Figure 12 is the front view of bottom in the present invention.
Figure 13 is the sectional view of B-B in Figure 12.
Figure 14 is bottom and valve body screw thread screws the structural representation of place and the 3rd sealing ring.
Figure 15 is the structural representation of hex bolts use state in China and foreign countries' of the present invention.
1:Valve body;101:Storage tank;2:Valve element;201:Positioning hole;3:Valve rod;4:Intelligent object;5:Alignment pin;6:Bottom
Lid;601:Interior hexagonal sleeve pipe;602:3rd sealing ring;603:Via hole is installed;7:Interface channel;701:Interface channel air inlet
Mouthful;702:Interface channel gas outlet;703:Screwed hole;8:Gas distribution channel;801:Gas distribution channel air inlet;802:Gas distribution channel goes out
Gas port;9:First sealing ring;10:Second sealing ring;11:Outer-hexagonal bolt.
Embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
A kind of Intelligent ball valve, referring to Fig. 1 to Fig. 4, including valve body 1, the spherical valve element 2 in valve body 1, through valve body
1 and the valve rod 3 and intelligent object 4 that are connected with the top of valve element 2, in addition to an alignment pin 5, the downside of valve element 2 be provided with one
The positioning hole 201 of column, the central axis of the positioning hole 201 overlap with the central axis of valve rod 3, and in positioning hole 201
Mandrel line passes through the centre of sphere of valve element 2, and the downside of valve body 1 is provided with the storage tank 101 of an intelligent object 4 for being used for placement, institute
State alignment pin 5 to run through the bottom of valve body 1 vertically and fix with valve body 1, the upper end of alignment pin 5 is interspersed in the downside positioning hole 201 of valve element 2
It is interior so that when valve rod 3 rotates with movable valve plug 2, valve element 2 can be positioned at rotation on alignment pin 5, be also prevented from valve element 2 because of left and right sides
Air pressure, left and right skew occurs and floats, the lower end of alignment pin 5 is extended in the downside storage tank 101 of valve body 1.
Interface channel 7 is provided with the alignment pin 5, as shown in Figures 5 to 9, the interface channel 7 connects into " C " font
The upper side opening of passage 7 is interface channel air inlet 701, and open lower side is interface channel gas outlet 702, and the interface channel enters
Gas port 701 and interface channel gas outlet 702 laterally set and are opened in the side wall of alignment pin 5, the interface channel air inlet
701 in positioning hole 201, and the interface channel gas outlet 702 is located in storage tank 101, and the interlude of interface channel 7 is set vertically
Put in alignment pin 5.A sealing ring neck is offered in the side wall of alignment pin 5, first is provided with the sealing ring neck
Sealing ring 9, the side of the first sealing ring 9 are bonded with the side wall of alignment pin 5, and opposite side is bonded with the inwall of positioning hole 201, the company
Connect road air inlet 701 be located in the first sealing ring 9, first sealing ring 9 for prevent interface channel air inlet 701 with it is defeated
When gas passage gas outlet 802 is staggered, still there is gas to enter interface channel air inlet 701 from valve body 1.It is arranged on the alignment pin 5
There is one to be used to sealing second sealing ring 10 in gap between alignment pin 5 and positioning hole 201, the inner side of the second sealing ring 10 with
The fitting of the outer wall of alignment pin 5 is sealed, outside is bonded with the inwall of positioning hole 201, and second sealing ring 10 is located under the first sealing ring 9
Side, the second sealing ring 10 can further prevent gas from entering connection from gap location between sealing alignment pin 5 and positioning hole 201 and leading to
Road air inlet 701.
Gas distribution channel 8 is provided with the valve element 2, the upper side opening of the gas distribution channel 8 is gas distribution channel air inlet 801,
Open lower side is gas distribution channel gas outlet 802, and the gas distribution channel air inlet 801 on the inner hole wall of valve element 2, lead to by the gas transmission
Road gas outlet 802 is located in the side wall of positioning hole 201.
When the rotation of valve element 2 is extremely in complete connected state with valve body 1, gas distribution channel gas outlet 802 and interface channel air inlet
Mouth 701 is also just relative, and gas distribution channel 8 also connects with interface channel 7;When valve element 2 and valve body 1 are in off-state, gas distribution channel
Gas outlet 802 is staggered with interface channel air inlet 701, and gas distribution channel 8 also disconnects with interface channel 7.
A bottom 6 is provided with the lower ending opening of storage tank 101, as shown in Figure 10 to Figure 13, the bottom 6 is with housing
It is close provided be used to seal marginal gap between bottom 6 and valve body 1 the 3rd by threaded engagement, the bottom 6 between groove 101
Seal 602, the upper surface edge of bottom 6 are provided with the groove of the 3rd sealing ring 602, and the 3rd sealing ring 602 is arranged on
In groove, the plane with the fitted seal of the 3rd sealing ring 602 is provided with the downside storage tank 101 of valve body 1, when bottom 6 and valve
When body 1 screws, sealing is realized by extruding the 3rd sealing ring 602 at internal edge, as shown in figure 14.The downside of bottom 6 is set
There are four installation via holes 603, screw installation bottom 6 for inserting, the intelligent object 4 is in storage tank 101, the intelligence
The tracing information such as the production time of the writable product, production process, time of making the product in energy module 4, can after construction party installation
The information such as engineering time construction person liable are write, and during the later stage is to pipeline maintenance, the intelligent object 4 can launch GPS
Positioning signal, allow pipeline maintenance personnel to be quickly found out the installation site of the valve, and by Bluetooth signal transmission, phase is carried out to it
Close information writes input, can also set baroceptor, monitors the atmospheric pressure value in valve internal combustion gas transmitting procedure.
The bottom of alignment pin 5 is vertically provided with a screwed hole 703 and an outer-hexagonal bolt coordinated with screwed hole 703
11, the screwed hole 703 connects with interface channel 7, and the outer-hexagonal bolt 11 is inverted and is located in screwed hole 703, and outer-hexagonal
Interface channel 7 can be cut off during being twisted on bolt 11;Thread center's line of the outer-hexagonal bolt 11 and the thread center of bottom 6
Line overlaps, and the screw thread of outer-hexagonal bolt 11 is opposite with the thread rotary orientation of bottom 6;The upper surface of bottom 6 is vertical to be had six in one
Angle sleeve pipe 601, the interior lower end of hexagonal sleeve pipe 601 are fixed on bottom 6, and upper end is open, and the endoporus of interior hexagonal sleeve pipe 601 is transversal
Face is a hexagon matched with the cap portion outer-hexagonal of outer-hexagonal bolt 11, in the cap portion of the outer-hexagonal bolt 11 can be fastened on
The endoporus of hexagonal sleeve pipe 601 can simultaneously slide up and down along the endoporus of interior hexagonal sleeve pipe 601, as shown in figure 15.When outer-hexagonal bolt 11
Cap portion when being fastened on the endoporus of interior hexagonal sleeve pipe 601, outer-hexagonal bolt 11 can rotate together with bottom 6, also, due to outer
The screw thread of hex bolts 11 is opposite with the thread rotary orientation of bottom 6 so that bottom 6 toward rotational direction rotate when, outer-hexagonal bolt 11
Rotated toward tightening direction;Bottom 6 toward tightening direction rotate when, outer-hexagonal bolt 11 toward rotational direction rotate.
During pipeline use, when the rotation of valve element 2 is extremely in complete connected state with valve body 1, gas distribution channel gas outlet
802 is just relative with interface channel air inlet 701, and gas distribution channel 8 connects with interface channel 7, the inner chamber of valve body 1 and storage tank 101
Connected also by interface channel 7 with gas distribution channel 8, the intelligent object 4 in storage tank 101 just can monitor fuel gas transmission mistake
Pressure value in journey;When valve element 2 and valve body 1 are in off-state, gas distribution channel gas outlet 802 is wrong with interface channel air inlet 701
Open, gas distribution channel 8 disconnects with interface channel 7, and the inner chamber of valve body 1 does not connect with storage tank 101, also, storage tank 101 is only in one
Vertical sealing cavity, personnel easy to operation remove bottom 6 and change, safeguard intelligent object 4.
During bottom 6 is removed in operating personnel's rotation, outer-hexagonal bolt 11 can rotate toward tightening direction, i.e., up rotate
Mobile, during outer hex bolts 11 is up in rotary moving, the epimere of outer-hexagonal bolt 11 can cut off interface channel 7, and continue
Move up, until bottom 6 is removed, interface channel 7 is cut off using outer-hexagonal bolt 11, is further ensured and is being changed, safeguarding intelligence
During module 4, combustion gas will not leak from interface channel 7.Intelligent object 4 changes, safeguard after, when need to install back bottom 6,
The endoporus that the cap portion of the downside of outer-hexagonal bolt 11 is first directed to hexagonal sleeve pipe 601 in the upside of bottom 6 inserts, the outside screw of bottom 6
The alignment screw thread of storage tank 101 screws, and in the screwing operations of bottom 6, outer-hexagonal bolt 11 can rotate toward rotational direction, i.e., down
In rotary moving, during outer hex bolts 11 is down in rotary moving, the epimere of outer-hexagonal bolt 11 can gradually discharge interface channel
7 so that whole section of interface channel 7 recovers connection.
Claims (6)
1. a kind of Intelligent ball valve, including valve body(1), located at valve body(1)Interior valve element(2), through valve body(1)And and valve element(2)
The valve rod of top connection(3)And intelligent object(4), it is characterised in that:Also include an alignment pin(5), the valve element(2)Downside
Provided with a positioning hole(201), the valve body(1)Downside is provided with an intelligent object for being used to place(4)Storage tank
(101), the alignment pin(5)Run through valve body vertically(1)Bottom and and valve body(1)It is fixed, alignment pin(5)Upper end is interspersed in valve element
(2)Downside positioning hole(201)It is interior, alignment pin(5)Lower end extends to valve body(1)Downside storage tank(101)It is interior;
The alignment pin(5)It is interior to be provided with interface channel(7), the interface channel(7)Upper side opening be interface channel air inlet
(701), open lower side is interface channel gas outlet(702), the interface channel air inlet(701)With interface channel gas outlet
(702)It is opened in alignment pin(5)Side wall, the interface channel air inlet(701)Positioned at positioning hole(201)It is interior, the connection
Passage gas outlet(702)Positioned at storage tank(101)It is interior;
The valve element(2)It is interior to be provided with gas distribution channel(8), the gas distribution channel(8)Upper side opening be gas distribution channel air inlet
(801), open lower side is gas distribution channel gas outlet(802), the gas distribution channel air inlet(801)Located at valve element(2)Inner hole wall
On, the gas distribution channel gas outlet(802)Positioned at positioning hole(201)In side wall;
Work as valve element(2)With valve body(1)In connected state, gas distribution channel gas outlet(802)With interface channel air inlet(701)Even
It is logical;Work as valve element(2)With valve body(1)In off-state, gas distribution channel gas outlet(802)With interface channel air inlet(701)Stagger;
The storage tank(101)A bottom is provided with lower ending opening(6), the bottom(6)With storage tank(101)Between pass through
Threaded engagement, the intelligent object(4)Located at storage tank(101)It is interior.
A kind of 2. Intelligent ball valve according to claim 1, it is characterised in that:The alignment pin(5)Bottom is provided with a spiral shell
Pit(703)And one and screwed hole(703)The outer-hexagonal bolt of cooperation(11), the screwed hole(703)With interface channel(7)
Connection, the outer-hexagonal bolt(11)Inversion is located at screwed hole(703)It is interior, and outer-hexagonal bolt(11)Upper stubborn cut-off connection is logical
Road(7);The outer-hexagonal bolt(11)Thread center's line and bottom(6)Thread center line overlap, and outer-hexagonal bolt
(11)Screw thread and bottom(6)Thread rotary orientation it is opposite;The bottom(6)Upper surface is vertical an interior hexagonal sleeve pipe(601), institute
State interior hexagonal sleeve pipe(601)Lower end is fixed on bottom(6)On, upper end is open, interior hexagonal sleeve pipe(601)Endoporus cross section be one
Individual and outer-hexagonal bolt(11)The hexagon of cap portion outer-hexagonal matching, the outer-hexagonal bolt(11)Cap portion can be fastened in six
Angle sleeve pipe(601)Endoporus and can be along interior hexagonal sleeve pipe(601)Endoporus slide up and down.
A kind of 3. Intelligent ball valve according to claim 1 or 2, it is characterised in that:The alignment pin(5)Offered in side wall
One sealing ring neck, the sealing ring neck is interior to be provided with the first sealing ring(9), the interface channel air inlet(701)It is located at
First sealing ring(9)It is interior.
A kind of 4. Intelligent ball valve according to claim 2, it is characterised in that:The alignment pin(5)On be arranged with a use
In sealing alignment pin(5)With positioning hole(201)Between gap the second sealing ring(10), second sealing ring(10)Positioned at
One sealing ring(9)Downside.
A kind of 5. Intelligent ball valve according to claim 1, it is characterised in that:The bottom(6)It is provided with and is used to seal bottom
Lid(6)With valve body(1)Between marginal gap the 3rd sealing ring(602).
A kind of 6. Intelligent ball valve according to claim 1 or 5, it is characterised in that:The bottom(6)Downside is provided with some peaces
Fill via hole(603).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711094696.9A CN107676531B (en) | 2017-11-09 | 2017-11-09 | Intelligent ball valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711094696.9A CN107676531B (en) | 2017-11-09 | 2017-11-09 | Intelligent ball valve |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107676531A true CN107676531A (en) | 2018-02-09 |
CN107676531B CN107676531B (en) | 2023-12-29 |
Family
ID=61146454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711094696.9A Active CN107676531B (en) | 2017-11-09 | 2017-11-09 | Intelligent ball valve |
Country Status (1)
Country | Link |
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CN (1) | CN107676531B (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000329255A (en) * | 1999-05-19 | 2000-11-30 | Koyo Sangyo Kk | Gas cock |
CN202971986U (en) * | 2012-11-13 | 2013-06-05 | 大众阀门集团有限公司 | Large-caliber fuel gas double-door ball valve |
CN104514895A (en) * | 2014-12-01 | 2015-04-15 | 华英伦科技(宁波)有限公司 | Ball valve of gas fuel pipeline provided with self-closing barometer connector |
KR101685195B1 (en) * | 2016-06-03 | 2016-12-20 | 채희관 | Ball valve with a dual pressure measuring device |
CN207514367U (en) * | 2017-11-09 | 2018-06-19 | 宁波市宇华电器有限公司 | A kind of Intelligent ball valve |
-
2017
- 2017-11-09 CN CN201711094696.9A patent/CN107676531B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000329255A (en) * | 1999-05-19 | 2000-11-30 | Koyo Sangyo Kk | Gas cock |
CN202971986U (en) * | 2012-11-13 | 2013-06-05 | 大众阀门集团有限公司 | Large-caliber fuel gas double-door ball valve |
CN104514895A (en) * | 2014-12-01 | 2015-04-15 | 华英伦科技(宁波)有限公司 | Ball valve of gas fuel pipeline provided with self-closing barometer connector |
KR101685195B1 (en) * | 2016-06-03 | 2016-12-20 | 채희관 | Ball valve with a dual pressure measuring device |
CN207514367U (en) * | 2017-11-09 | 2018-06-19 | 宁波市宇华电器有限公司 | A kind of Intelligent ball valve |
Also Published As
Publication number | Publication date |
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CN107676531B (en) | 2023-12-29 |
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Address after: 315414 No. 71, West Road, Hemudu Town, Yuyao City, Ningbo City, Zhejiang Province Applicant after: Ningbo Yuhua Industrial Co.,Ltd. Address before: 315414 No. 71, West Road, Hemudu Town, Yuyao City, Ningbo City, Zhejiang Province Applicant before: NINGBO YUHUA ELECTRIC APPLIANCE Co.,Ltd. |
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