CN107524856B - A kind of hermetically sealed zero leakage ball valve - Google Patents
A kind of hermetically sealed zero leakage ball valve Download PDFInfo
- Publication number
- CN107524856B CN107524856B CN201710860100.5A CN201710860100A CN107524856B CN 107524856 B CN107524856 B CN 107524856B CN 201710860100 A CN201710860100 A CN 201710860100A CN 107524856 B CN107524856 B CN 107524856B
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- China
- Prior art keywords
- valve
- threaded rod
- valve body
- fixture block
- gasket
- 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.)
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- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000032258 transport 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/023—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles
-
- 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
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Abstract
The invention discloses a kind of hermetically sealed zero leakage ball valves, including pipeline, the both ends of the pipeline are equipped with flange, the upper end of the pipeline is equipped with valve body, valve deck is rotatably connected on the valve body, the valve deck is equipped with handle, six prismatic slots are offered in the valve body, mandrel is equipped in the six prismatics slot, the top of the mandrel is equipped with the first nut, the valve deck is equipped with bolt, and bolt is connect with the first nut thread, the middle part of the valve body is equipped with fixed plate, the mandrel is through fixed plate and is fixedly connected with valve rod, the valve rod is fixedly connected with sphere by link block far from one end of mandrel, the sphere is hollow structure and symmetrically opens up there are two hollow circular groove, multiple first gaskets are equipped in the valve body, structure of the invention is stablized, good seal performance, it can be with the junction and ball of effective solution valve deck and valve body The leak source of the junction of body and valve seat, and facilitate adjusting, for a long time using adjusting is rotated when causing leakproofness bad, it is worthy to be popularized.
Description
Technical field
The present invention relates to ball valve technical fields, more particularly to a kind of hermetically sealed zero leakage ball valve.
Background technique
The invention of valve closely attends by always the life of the mankind, production and work with application, also has thousands of years so far
History.Due to the continuous increase of demand, kind, the specification yield of valve constantly surge, and according to incompletely statistics, China is current
There is about 30,000 plurality of specifications of more than 3,000 kinds of valves.Valve is the important device of transporting fluid, especially transporting it is inflammable, it is explosive, have
To the leakproofness of valve in the harmful danger medium of poison, to safe and reliable consideration, intensity guarantee property proposes strict requirements.
Ball valve can realize opening and closing, time saving, laborsaving, the reliable advantage of leakproofness of operation due to only turning 90 degrees with small in size, handle
And it is widely used.Current ball valve valve deck and valve body bolt, nut connection and form sealing.However this seal chamber has two
A leak source, one be valve rod and valve body junction, another place is that valve rod makes rotating motion at valve seat and similarly produces and match
Closing gap have to be clipped in gasket to prevent from leaking and go to block up at gap.When transporting medium temperature increases, pressure increase makes
The working environment of valve is very harsh, in order to guarantee being perfectly safe for transporting dangerous material, the most fundamental method be exactly cancel this two
A leak source.Opening and closing valve, such as shut-off valve, gate valve, people are reached by the opening and closing element in lift valve intracavitary portion for those
Can by valve rod lower end be equipped with opening and closing element hanger, hanger clearance fit be arranged in valve chamber, valve body valve port with
Between hanger be equipped with corrugated tube shape elastic telescopic part, elastic telescopic part both ends respectively with valve port and hanger fixed seal connection
Flashboard and upper capping are separated, to achieve the purpose that full-seal zero-leakage.Ball valve is a kind of common valve, and ball valve both can be defeated
Drain state, gaseous state, solid-state a single state medium, and the medium of shape can be mixed admittedly with transporting liquid, and ball valve has handle only
It is turn 90 degrees the advantages of can opening and closing, quick, time saving, the laborsaving leakproofness of unlatching is reliable, and use scope is extensive.But for ball valve
It is this to reach opening and closing valve by 90 degree of spinning balls, since bellows can not do radial rotary deformation, above structure
It can not be applicable in, need to become moving along a straight line with rotation, then move along a straight line and become rotary motion machinery mapping device, so that structure compares
Complexity, and volume increases.
Summary of the invention
The purpose of the present invention is to solve sealing property of ball valves in the prior art is poor, the problem of being easy leakage, and propose
A kind of hermetically sealed zero leakage ball valve.
To achieve the goals above, present invention employs following technical solutions:
A kind of hermetically sealed zero leakage ball valve, including pipeline, the both ends of the pipeline are equipped with flange, the upper end of the pipeline
Equipped with valve body, valve deck is rotatably connected on the valve body, the turntable is equipped with handle, offers six prismatics in the valve body
Slot, the six prismatics slot is interior to be equipped with mandrel, and the top of the mandrel is equipped with the first nut, and the turntable is equipped with bolt, and spiral shell
Bolt is connect with the first nut thread, and the middle part of the valve body is equipped with fixed plate, and the mandrel is through fixed plate and is fixedly connected with
Valve rod, the one end of the valve rod far from mandrel are fixedly connected with sphere by link block, and the sphere is hollow structure and symmetrical
It opens up there are two hollow circular groove, the valve body is interior to be equipped with multiple first gaskets, is symmetrically arranged with first in first gasket
Fixture block and the second fixture block, are transversely provided with multiple first threaded rods in the valve body, and first fixture block and the second fixture block are with
One threaded rod is threadedly coupled, and first threaded rod runs through the inner wall of valve body and is fixedly connected with the first turntable, in the pipeline
Two valve seats are symmetrically arranged with, the upper and lower ends of each valve body are equipped with the second gasket, the outer wall of the pipeline and second
The corresponding position of gasket is equipped with fixed frame, and the fixed frame and the second gasket offer sliding chamber, and the cunning is intracavitary to be equipped with
It is equipped with the second threaded rod vertically, is equipped with the second nut in the fixed frame, and the second threaded rod is connect with the second nut thread, institute
It states the second threaded rod and is fixedly connected with the second turntable across the second nut, second nut is rotated far from one end of the second turntable
It is connected with third fixture block, the third fixture block is equipped with multiple card needles close to one end of the second gasket.
Preferably, the valve rod uses threaded-structure, and first gasket uses U-shaped structure, and the first gasket
Internal screw thread is offered close to one end of valve rod, and the first gasket is engaged by internal screw thread with valve rod.
Preferably, first threaded rod uses double thread structure, and the left end of first threaded rod offers left-handed spiral shell
The right end of line, first threaded rod offers right-handed thread.
Preferably, be equipped with the first thread bush in first fixture block, and the first thread bush with it is left-handed on the first threaded rod
Screw thread connection, second fixture block is interior to be equipped with the second thread bush, and the dextrorotation spiral shell on the second thread bush and the first threaded rod
Line is threadedly coupled.
Preferably, first threaded rod is fixed on the outer wall of valve body by deep groove ball bearing.
Preferably, second threaded rod is rotatablely connected by miniature deep groove ball bearing and third fixture block.
In the present invention, the setting of turntable screw thread linkage can be adjusted the tightness of two gaskets and connector
Section, leak source at effective solution two: being the junction of valve rod and valve body at one, another place is that sphere does on valve seat rotation fortune
Dynamic to locate, leak source can be with effective solution by the setting of the first gasket at first, and can be adjusted when being bonded not tight, turns
Dynamic first turntable, the movement of first the first threaded rod of driven by rotary disc, since the first threaded rod uses double thread, left hand thread is driven
The the first fixture block movement being threadedly coupled therewith, right-handed thread drive the second fixture block movement being threadedly coupled therewith, the first fixture block
Done with the second fixture block it is close to each other or far from movement, when being located remotely from each other movement can the both ends to the first gasket be adjacent to it is solid
It is fixed, it prevents from revealing, leak source, which tenses the second gasket by third fixture block, at second to rotate the second turntable with effective solution,
The second threaded rod is driven to move after the rotation of second turntable, the second threaded rod realizes that becoming straight line from rotation transports by the second nut
Dynamic, the second threaded rod drives the movement of third fixture block, since third fixture block is equipped with card needle, can tightly be fitted in the second sealing
On pad, so that the second gasket be pulled to keep it even closer with the structure of valve seat and sphere, occur sealing not when using time length
When good, rotate the first turntable and the second turntable is adjusted.Structure of the invention is stablized, and good seal performance can be effective
The leak source of the junction of the junction and sphere and valve seat of valve deck and valve body is solved, and facilitates adjusting, it is close using causing for a long time
Rotation is adjusted when envelope property is bad, is worthy to be popularized.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the hermetically sealed zero leakage ball valve of one kind proposed by the present invention；
Fig. 2 is the body portion schematic diagram of internal structure of the hermetically sealed zero leakage ball valve of one kind proposed by the present invention；
Fig. 3 is part A enlarged structure schematic diagram in Fig. 1.
In figure: 1 handle, 2 valve decks, 3 bolts, 4 first nuts, 5 mandrels, 6 valve bodies, 7 fixed plates, 8 internal screw threads, 9 valve rods, 10
Link block, 11 pipelines, 12 first fixture blocks, 13 second fixture blocks, 14 deep groove ball bearings, 15 first threaded rods, 16 first gaskets, 17
Valve seat, 18 spheres, 19 second gaskets, 20 flanges, 21 second nuts, 22 second turntables, 23 fixed frames, 24 second threaded rods,
25 sliding chambers, 26 miniature deep groove ball bearings, 27 third fixture blocks.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-3, a kind of hermetically sealed zero leakage ball valve, including pipeline 11, the both ends of pipeline 11 are equipped with flange 20, manage
The upper end in road 11 is equipped with valve body 6, and valve deck 2 is rotatably connected on valve body 6, and valve deck 2 is equipped with handle 1, offers six ribs in valve body 6
Shape slot, is equipped with mandrel 5 in six prismatic slots, and the top of mandrel 5 is equipped with the first nut 4, and valve deck 2 is equipped with bolt 3, and bolt 3 with
First nut 4 is threadedly coupled, and the middle part of valve body 6 is equipped with fixed plate 7, and mandrel 5 is through fixed plate 7 and is fixedly connected with valve rod 9, valve
The one end of bar 9 far from mandrel 5 is fixedly connected with sphere 18 by link block 10, and sphere 18 is hollow structure and symmetrically offers two
A hollow circular groove, valve body 6 is interior to be equipped with multiple first gaskets 16, is symmetrically arranged with the first fixture block 12 and second in the first gasket 16
Fixture block 13, is transversely provided with multiple first threaded rods 15 in valve body 6, the first fixture block 12 and the second fixture block 13 with the first threaded rod 15
It is threadedly coupled, the first threaded rod 15 runs through the inner wall of valve body 6 and is fixedly connected with the first turntable, and two are symmetrically arranged in pipeline 11
Valve seat 17, the upper and lower ends of each valve body 17 are equipped with the second gasket 19, and the outer wall of pipeline 11 is corresponding with the second gasket 19
Position be equipped with fixed frame 23, fixed frame 23 and the second gasket 19 offer sliding chamber 25, are equipped in sliding chamber 25 and are equipped with vertically
Second threaded rod 24, fixed frame 23 is interior to be equipped with the second nut 21, and the second threaded rod 24 is threadedly coupled with the second nut 21, and second
Threaded rod 24 passes through the second nut 21 and is fixedly connected with the second turntable 22, and the second nut 21 is rotated far from one end of the second turntable 22
It is connected with third fixture block 27, third fixture block 27 is equipped with multiple card needles close to one end of the second gasket 19.
In the present invention, valve rod 9 uses threaded-structure, and the first gasket 16 uses U-shaped structure, and the first gasket 16 leans on
One end of nearly valve rod 9 offers internal screw thread 8, and the first gasket 16 is engaged by internal screw thread 8 with valve rod 9, threaded-structure
The cooperation of the internal screw thread 8 of valve rod 9 and the first gasket increases compactness, and the first threaded rod 15 uses double thread structure, the first screw thread
The left end of bar 15 offers left hand thread, and the right end of the first threaded rod 15 offers right-handed thread, and the is equipped in the first fixture block 12
One thread bush, and the first thread bush is threadedly coupled with the left hand thread on the first threaded rod 15, is equipped with second in the second fixture block 13
Thread bush, and the second thread bush is threadedly coupled with the right-handed thread on the first threaded rod 15, the design of double thread threaded rod can be with
It realizes the first fixture block 12 and the movement close to each other and separate of the second fixture block 13, realizes that clamping function, the first threaded rod 15 pass through depth
Ditch ball bearing 14 is fixed on the outer wall of valve body 6, and the second threaded rod 24 passes through miniature deep groove ball bearing 26 and 27 turns of third fixture block
Dynamic connection, the setting of deep groove ball bearing 14 and miniature deep groove ball bearing 26 can be played the role of supporting and fixing, and make the first spiral shell
Rasp bar 15 and the second threaded rod 24 can only realize rotation.
Valve deck 2, mandrel 5, valve rod 9, sphere 18 and valve seat 17 are the prior art in the present invention, are no longer illustrated herein, this
Invention mainly solves leak source at two: being the junction of valve rod 9 Yu valve body 6 at one, another place is that sphere 18 does on valve seat 17 and revolves
Transhipment is dynamic to be located, and leak source can be with effective solution by the setting of the first gasket 16 at first, and can carry out when being bonded not tight
It adjusting, rotates the first turntable, first the first threaded rod of driven by rotary disc 15 moves, since the first threaded rod 15 uses double thread,
Left hand thread drives the first fixture block 12 movement being threadedly coupled therewith, and right-handed thread drives the second fixture block being threadedly coupled therewith
13 movements, the first fixture block 12 and the second fixture block 13 do close to each other or separate movement, can be close to first when being located remotely from each other movement
The both ends of packing 16 carry out being adjacent to fixation, prevent from revealing, and leak source can by the second gasket 19 of tension of third fixture block 27 at second
With effective solution, the second turntable 22 is rotated, drives the second threaded rod 24 to move after the rotation of the second turntable 22, the second threaded rod 24
Being realized by the second nut 21 from rotation becomes moving along a straight line, and the second threaded rod 24 drives third fixture block 27 to move, due to third
Fixture block 27 is equipped with card needle, can tightly be fitted on the second gasket 19, so that the second gasket 19 be pulled to make itself and valve
The structure of seat 17 and sphere 18 is even closer, when there is poor sealing using time length, rotates the first turntable and the second turntable
22 are adjusted.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of hermetically sealed zero leakage ball valve, including pipeline (11), which is characterized in that the both ends of the pipeline (11) are equipped with method
The upper end of blue (20), the pipeline (11) is equipped with valve body (6), is rotatably connected to valve deck (2), the valve deck on the valve body (6)
(2) it is equipped with handle (1), six prismatic slots is offered in the valve body (6), the heart of six prismatic structures is equipped in the six prismatics slot
Axis (5), the top of the mandrel (5) are equipped with the first nut (4), and the valve deck (2) is equipped with bolt (3), and bolt (3) and the
One nut (4) is threadedly coupled, and the middle part of the valve body (6) is equipped with fixed plate (7), and the mandrel (5) is through fixed plate (7) and solid
Surely it being connected with valve rod (9), the one end of the valve rod (9) far from mandrel (5) is fixedly connected with sphere (18) by link block (10),
The sphere (18) is hollow structure and symmetrically opens up there are two hollow circular groove that the valve body (6) is interior to be equipped with multiple first sealings
It pads (16), the first fixture block (12) and the second fixture block (13), cross in the valve body (6) is symmetrically arranged in first gasket (16)
To being equipped with multiple first threaded rods (15), first fixture block (12) and the second fixture block (13) with the first threaded rod (15) screw thread
Connection, first threaded rod (15) runs through the inner wall of valve body (6) and is fixedly connected with the first turntable, right in the pipeline (11)
Title is set there are two valve seat (17), and the upper and lower ends of each valve seat (17) are equipped with the second gasket (19), the pipeline
(11) outer wall position corresponding with the second gasket (19) is equipped with fixed frame (23), the fixed frame (23) and the second gasket
(19) it offers sliding chamber (25), is equipped in the sliding chamber (25) and is equipped with the second threaded rod (24) vertically, the fixed frame (23)
It is inside equipped with the second nut (21), and the second threaded rod (24) is threadedly coupled with the second nut (21), second threaded rod (24)
It is fixedly connected with the second turntable (22) across the second nut (21), the one end of second nut (21) far from the second turntable (22)
It is rotatably connected to third fixture block (27), the third fixture block (27) is equipped with multiple card needles close to the one end of the second gasket (19).
2. the hermetically sealed zero leakage ball valve of one kind according to claim 1, which is characterized in that the valve rod (9) uses screw thread
Type structure, first gasket (16) uses U-shaped structure, and the first gasket (16) is offered close to the one end of valve rod (9)
Internal screw thread (8), and the first gasket (16) is engaged by internal screw thread (8) with valve rod (9).
3. the hermetically sealed zero leakage ball valve of one kind according to claim 1, which is characterized in that first threaded rod (15) is adopted
With double thread structure, the left end of first threaded rod (15) offers left hand thread, the right end of first threaded rod (15)
Offer right-handed thread.
4. the hermetically sealed zero leakage ball valve of one kind according to claim 3, which is characterized in that set in first fixture block (12)
There is the first thread bush, and the first thread bush is threadedly coupled with the left hand thread on the first threaded rod (15), second fixture block
(13) the second thread bush is equipped in, and the second thread bush is threadedly coupled with the right-handed thread on the first threaded rod (15).
5. the hermetically sealed zero leakage ball valve of one kind according to claim 1, which is characterized in that first threaded rod (15) is logical
Deep groove ball bearing (14) is crossed to be fixed on the outer wall of valve body (6).
6. the hermetically sealed zero leakage ball valve of one kind according to claim 1, which is characterized in that second threaded rod (24) is logical
Miniature deep groove ball bearing (26) and third fixture block (27) are crossed to be rotatablely connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710860100.5A CN107524856B (en) | 2017-09-21 | 2017-09-21 | A kind of hermetically sealed zero leakage ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710860100.5A CN107524856B (en) | 2017-09-21 | 2017-09-21 | A kind of hermetically sealed zero leakage ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107524856A CN107524856A (en) | 2017-12-29 |
| CN107524856B true CN107524856B (en) | 2019-02-19 |
Family
ID=60736011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710860100.5A Active CN107524856B (en) | 2017-09-21 | 2017-09-21 | A kind of hermetically sealed zero leakage ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107524856B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3367625A (en) * | 1965-06-22 | 1968-02-06 | Fortune Ronald | Slide gate valves |
| FR2353770A1 (en) * | 1976-06-04 | 1977-12-30 | Vraco Systemes | Sliding gate valve seal - has hollow flexible elements mounted in annular housing chambers and connected with pressurised fluid source by passages |
| CN2317363Y (en) * | 1998-01-13 | 1999-05-05 | 刘强 | Adjustable sealing gasket for valve |
| JP2005147349A (en) * | 2003-11-19 | 2005-06-09 | Mitsui Eng & Shipbuild Co Ltd | Slide gate valve and thermal decomposition gasifying device using the slide gate valve |
| WO2008023499A1 (en) * | 2006-08-23 | 2008-02-28 | S Vac Co., Ltd. | Vacuum valve |
| CN100510487C (en) * | 2004-03-15 | 2009-07-08 | 应用材料有限责任与两合公司 | Slide valve |
| CN103047436A (en) * | 2013-01-08 | 2013-04-17 | 苏州宇东暖通技术有限公司 | Constant-force gate valve |
| CN203176400U (en) * | 2013-03-28 | 2013-09-04 | 北京欧特控制阀有限公司 | Gate valve |
| CN204628590U (en) * | 2015-05-27 | 2015-09-09 | 中国船舶重工集团公司第七一一研究所 | Low leakage boat diesel engine high temperature butterfly valve |
| CN205479425U (en) * | 2015-12-30 | 2016-08-17 | 克拉玛依瑞鹏石油技术服务有限公司 | Sealed regulator |
-
2017
- 2017-09-21 CN CN201710860100.5A patent/CN107524856B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3367625A (en) * | 1965-06-22 | 1968-02-06 | Fortune Ronald | Slide gate valves |
| FR2353770A1 (en) * | 1976-06-04 | 1977-12-30 | Vraco Systemes | Sliding gate valve seal - has hollow flexible elements mounted in annular housing chambers and connected with pressurised fluid source by passages |
| CN2317363Y (en) * | 1998-01-13 | 1999-05-05 | 刘强 | Adjustable sealing gasket for valve |
| JP2005147349A (en) * | 2003-11-19 | 2005-06-09 | Mitsui Eng & Shipbuild Co Ltd | Slide gate valve and thermal decomposition gasifying device using the slide gate valve |
| CN100510487C (en) * | 2004-03-15 | 2009-07-08 | 应用材料有限责任与两合公司 | Slide valve |
| WO2008023499A1 (en) * | 2006-08-23 | 2008-02-28 | S Vac Co., Ltd. | Vacuum valve |
| CN103047436A (en) * | 2013-01-08 | 2013-04-17 | 苏州宇东暖通技术有限公司 | Constant-force gate valve |
| CN203176400U (en) * | 2013-03-28 | 2013-09-04 | 北京欧特控制阀有限公司 | Gate valve |
| CN204628590U (en) * | 2015-05-27 | 2015-09-09 | 中国船舶重工集团公司第七一一研究所 | Low leakage boat diesel engine high temperature butterfly valve |
| CN205479425U (en) * | 2015-12-30 | 2016-08-17 | 克拉玛依瑞鹏石油技术服务有限公司 | Sealed regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107524856A (en) | 2017-12-29 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Totally-sealed zero-leakage ball valve Effective date of registration: 20190521 Granted publication date: 20190219 Pledgee: Tongling Jincheng Financing Guarantee Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: 2019340000252 |
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Denomination of invention: Totally-sealed zero-leakage ball valve Effective date of registration: 20200506 Granted publication date: 20190219 Pledgee: Tongling Jincheng Financing Guarantee Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2020340000016 |
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Denomination of invention: A fully sealed zero leakage ball valve Effective date of registration: 20220728 Granted publication date: 20190219 Pledgee: Tongling Jincheng Financing Guarantee Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2022340000021 |
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