CN107830210A - A kind of conversion ball valve for being easy to particulate matter conveying - Google Patents
A kind of conversion ball valve for being easy to particulate matter conveying Download PDFInfo
- Publication number
- CN107830210A CN107830210A CN201711309188.8A CN201711309188A CN107830210A CN 107830210 A CN107830210 A CN 107830210A CN 201711309188 A CN201711309188 A CN 201711309188A CN 107830210 A CN107830210 A CN 107830210A
- Authority
- CN
- China
- Prior art keywords
- core
- ball valve
- easy
- particulate matter
- knob
- 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.)
- Withdrawn
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 34
- 239000013618 particulate matter Substances 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 63
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 230000008450 motivation Effects 0.000 claims 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000006698 induction Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing 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
- 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
- F16K5/06—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 with plugs having spherical surfaces; Packings therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a kind of conversion ball valve for being easy to particulate matter conveying, including valve body, sealing plug, core, knob and rotating mechanism；Valve body is provided with two " ten " word intersecting channels；One end of sealing plug is connected by screw thread with valve body outer passage；Seal screw thread one end of plug and two " ten " word intersecting channels both ends of valve body and be provided with core sealing ring nest；Sealing ring bushing and core sealing ring are provided with the sealing ring nest of two " ten " word intersecting channels；Seal in the core sealing ring nest of plug and be provided with core sealing ring；Core is positioned at the center of " ten " word intersecting channels by four uniform core sealing rings；The channel diameter of core is less than the half of core diameter；The top of core is provided with slot, and knob insertion slot is interior and is easy to the break-make for the conversion ball valve that particulate matter conveys by rotating mechanism control；The logical two disconnected switching of four-way two is realized in the once-through operation of the conversion ball valve conveyed by being easy to particulate matter.
Description
Technical field
The present invention relates to a kind of valve, belongs to hydropneumatic devices field, especially a kind of conversion for being easy to particulate matter conveying
Ball valve.
Background technology
Conversion ball valve is a kind of four-way ball in parallel for being used to realize logical two disconnected handoff functionality of hydraulic pressure, pneumatic line four-way two
Valve, and the ball valve is provided with two Vertical Channels, is not easy during using two Vertical Channel delivery of particulate material clamping stagnation occur to block up
Phenomenon is filled in, can be used for the particle induction system using air pressure as power；Patent CN106246957A discloses a kind of series connection four-way
Ball valve group, specifically include the first four way ball valve, the second four way ball valve, first is provided with the valve body cavity of first four way ball valve
Valve element, the valve body cavity of the second four way ball valve is interior to be provided with the second valve element, and the first valve element, the second valve element are fixedly connected and in drive mechanism
For the lower synchronous axial system of effect to realize the synchronism switching of convection current direction of flow, the passage of this ball valve is 90 degree of turning channels, it is impossible to be used in
Particulate matter conveys and easily causes clamping stagnation clogging, and this series connection ball-valve structure is complicated, volume is larger；Up for this, need
One kind is wanted to be conveniently used for particulate matter conveying, it is not easy to cause clamping stagnation to block, and compact-sized conversion ball valve.
The content of the invention
The technical problems to be solved by the invention are exactly to be to be directed to above-mentioned deficiency of the prior art, there is provided one kind is easy to
The conversion ball valve of particulate matter conveying.
The technical solution adopted for the present invention to solve the technical problems is：A kind of conversion ball valve for being easy to particulate matter conveying,
Including valve body, sealing plug, core, knob and rotating mechanism；The valve body is provided with two " ten " word intersecting channels；It is described close
The stifled one end of sealing wire is connected by screw thread with the valve body outer passage, and the other end of the sealing plug is provided with radial seal
Ring recess, the O-ring seal with the valve seal is provided with the radial seal ring recess；Screw thread one end of the sealing plug
Core sealing ring nest is provided with two " ten " word intersecting channels both ends of valve body；Described two " ten " word intersecting channels it is close
Sealing ring bushing and core sealing ring are provided with seal nest；It is close that core is provided with the core sealing ring nest of the sealing plug
Seal；The core is positioned at the center of " ten " word intersecting channels by four uniform core sealing rings；The core is led to
Road diameter is less than the half of core diameter；The top of the core is provided with slot, and the knob is inserted in the slot and led to
Cross the break-make of rotating mechanism control conversion ball valve.
Further, the top of the valve body is provided with closure, and the rotating mechanism is arranged at the closure
Top；The rotating mechanism includes knob, gear, retainer nut, knob bushing, knob sealing ring and stop washer；It is described close
Capping is provided with knob bushing and knob sealing ring for fixed gear bottom position；The knob is provided with the fixed tooth
The retainer nut for taking turns upper position and stop washer；The gear is connected by flat key with the knob.
Further, the gear includes drive gear and driven gear；The driven gear passes through the sliding tooth
The drive of wheel is so as to being rotated.
Further, the tooth of the drive gear and the driven gear is the tooth of 120-270 degree.
Further, the top of the valve body is provided with two spacer pins for limiting the drive gear degrees of rotation position.
Further, the O-ring seal is embedded in the radial seal ring recess；The one of the inside of the sealing plug
Hold as hexagonal hole.
Further, two " ten " word passages totally four passages, seven channel interfaces are provided with the valve body.
Further, the connection screw thread hole coordinated with exterior line is provided with the channel interface.
Further, " ten " word intersecting channels are common-use tunnel interface.
Compared with prior art, the beneficial effects of the invention are as follows：This conversion ball-valve structure is simple, easy to use；On valve body
Two " ten " word intersecting channels being provided with are conveniently used for particulate matter conveying, and not easily lead to clamping stagnation blocking, can be used for gas
Press the particle induction system for power；Core is positioned in " ten " word intersecting channels by four uniform core sealing rings
The heart, while the logical two disconnected switching of four-way two is realized to the once-through operation for changing ball valve by rotating mechanism, increase operating efficiency,
Reduce the labor intensity of operating personnel.
Brief description of the drawings
Fig. 1 show the inner passage schematic diagram for the conversion ball valve for being easy to particulate matter conveying.
Fig. 2 show the conversion ball valve front view for being easy to particulate matter conveying.
Fig. 3 show the conversion ball valve knob transmission schematic diagram for being easy to particulate matter conveying.
Fig. 4 show the dimensional structure diagram for the conversion ball valve for being easy to particulate matter conveying.
Fig. 5 show the core installation dimensional structure diagram for the conversion ball valve for being easy to particulate matter conveying.
Fig. 6 show the valve body dimensional structure diagram for the conversion ball valve for being easy to particulate matter conveying.
Fig. 7 show the sealing plug dimensional structure diagram for the conversion ball valve for being easy to particulate matter conveying.
In accompanying drawing：1 it is valve body, 2 be sealing plug, 3 be core, 4 be knob, 5 be core sealing ring nest, 6 is sealing ring
Bushing, 7 be core sealing ring, 8 be slot, 9 be rotating mechanism, 10 be closure, 11 be gear, 12 be retainer nut, 13 be
Knob bushing, 14 be knob sealing ring, 15 be stop washer, 16 be flat key, 17 be drive gear, 18 be driven gear, 19 be O
Type sealing ring, 20 be radial seal ring recess, 21 be spacer pin, 22 be connection screw thread hole.
Embodiment
The present invention is described in further detail below in conjunction with specific embodiment.It is it should be appreciated that described herein specific
Embodiment only to explain the present invention, is not intended to limit the present invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.
As shown in the figure of Fig. 1~7, a kind of conversion ball valve for being easy to particulate matter conveying, including valve body 1, sealing plug 2, core
3rd, knob 4 and rotating mechanism 9；The valve body 1 is provided with two " ten " word intersecting channels；One end of the sealing plug 2 passes through
Screw thread is connected with the outer passage of valve body 1, and the other end of the sealing plug 2 is provided with radial seal ring recess 20, the footpath
The O-ring seal 19 with the valve body 1 sealing is provided with into seal groove 20；Screw thread one end of the sealing plug 2 and valve
Two " ten " word intersecting channels both ends of body 1 are provided with core sealing ring nest 5；The sealing of described two " ten " word intersecting channels
Sealing ring bushing 6 and core sealing ring 7 are provided with circle nest 5；Core is provided with the core sealing ring nest 5 of the sealing plug
Sealing ring 7；The core 3 is positioned at the center of " ten " word intersecting channels by four uniform core sealing rings 7；The core
3 " ten " word intersecting channels diameter is less than the half of the diameter of core 3；The top of the core 3 is provided with slot 8, the knob 4
Insert the break-make that conversion ball valve is controlled in the slot 8 and by rotating mechanism 9；This conversion ball-valve structure is simple, easy to use；
Two " ten " word intersecting channels that valve body 1 is provided with are conveniently used for particulate matter conveying, and not easily lead to clamping stagnation blocking, Ke Yiyong
In the particle induction system using air pressure as power；Core 3 is positioned at " ten " word Communicating by four uniform core sealing rings 7
The center in road, while the logical two disconnected switching of four-way two is realized to the once-through operation for changing ball valve by rotating mechanism, increase work
Make efficiency, reduce the labor intensity of operating personnel.
The top of the valve body 1 is provided with closure 10, and the rotating mechanism 9 is arranged at the top of the closure 10；
The rotating mechanism 9 includes knob 4, gear 11, retainer nut 12, knob bushing 13, knob sealing ring 14 and stop washer 15；
The closure 10 is provided with knob bushing 13 and knob sealing ring 14 for the bottom position of fixed gear 11；The knob 4
It is provided with retainer nut 12 and the stop washer 15 of the fixed upper position of gear 11；The gear 11 passes through flat key 16 and institute
Knob 4 is stated to connect；Knob bushing 13 is arranged at the center of closure 10, and knob sealing ring 14 is arranged at the knob bushing
Bottom；Groove is provided with the retainer nut 12, stop washer 15 is provided with the groove, in use, stop washer 15 is installed
On groove, the inside and outside stop ear bending of stop washer 15 is put into groove after the completion of fastening, respectively will only after retainer nut's fastening
The inside and outside ear of washer 15 pulls back axial direction, is stuck in the opening with retainer nut 12 in the groove of knob 4, prevents stop spiral shell
Mother 12 loosens under the rotation of knob 4.
The gear 11 includes drive gear 17 and driven gear 18；The driven gear 18 passes through the drive gear 17
Drive so as to being rotated；The dextrorotation of core 3 that drive gear 17 drives turn 90 degrees drive gear 17 by between gear
90 degree of engagement driving driven gear 18 rotate counterclockwise.
The tooth of the drive gear 17 and the driven gear 18 is the tooth of 120-270 degree.
The top of the valve body 1 is provided with two and limits the spacer pin 21 that the drive gear 17 rotates 90 degree of positions.Due to driving
Moving gear 17 and the driven gear 18 are 90 degree of rotation, and drive gear 17 needs to limit the angle of rotation, because of the valve
It is provided with body and limits the spacer pin 21 that drive gear 17 rotates, so the tooth of drive gear 17 and the driven gear 18 is
120~270 degree of tooth.
The O-ring seal 19 is embedded in the radial seal ring recess 20；One end of the inside of the sealing plug 2 is six
Square hole；O-ring seal 19 prevents the leakage of liquid or gas medium；Hexagonal hole conveniently changes the tight of ball valve in use
Gu.
Two " ten " word passages totally four passages, seven channel interfaces are provided with the valve body 1；" ten " word intersects
Passage is common-use tunnel interface.As shown in Figure 1, four passages are respectively AB, CD, EF, GD；Seven channel interfaces be respectively A,
B、C、D、E、F、G；Six outer passages are respectively A, B, C, E, F, G.
Further, the connection screw thread hole 22 coordinated with exterior line is provided with channel interface.
It is easy to the conversion ball valve of particulate matter conveying in use, each passage on off operating mode as shown in Figure 1 is：AB disconnects, CD
Connection, EF connections, GD disconnect.When switching on off operating mode, the knob 4 that turns clockwise on drive gear 17, drive core 3 and drive
Moving gear 17 turns clockwise, and can only be rotated by 90 ° because two spacer pins 21 limit drive gear, so the band of drive gear 17
The dynamic dextrorotation of core 3 is turn 90 degrees, and drive gear 17 drives the rotate counterclockwise of driven gear 18 by the engagement between gear
90 degree, driven gear 18 drives 90 degree of 4 rotate counterclockwise of knob on driven gear 18, so as to which second core 3 driven is inverse
Hour hands are rotated by 90 °, and now the on off operating mode of passage is：AB connections, CD disconnect, EF disconnects, GD connections, realize conversion ball valve shape
State switches.
Above example is not intended to limit the invention, and within the spirit and principles of the invention, that is done any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.For example, in other embodiments, two cores
It can be staggered 90 degree and realize the combination of different passage break-makes；Valve body also can change channel interface position by fabrication hole and passage is walked
To, these all without departing from the present invention essence, within the scope of the present invention.
Claims (9)
1. a kind of conversion ball valve for being easy to particulate matter conveying, including valve body（1）, sealing plug（2）, core（3）Knob（4）With turn
Motivation structure（9）；The valve body（1）It is provided with two " ten " word intersecting channels；The sealing plug（2）One end by screw thread with
The valve body（1）Outer passage connects, the sealing plug（2）The other end be provided with radial seal ring recess（20）, the footpath
To seal groove（20）Inside it is provided with and the valve body（1）The O-ring seal of sealing（19）；The sealing plug（2）Screw thread
One end and valve body（1）Two " ten " word intersecting channels both ends be provided with core sealing ring nest（5）；Described two " ten " word phases
The sealing ring nest in traffic road（5）Inside it is provided with sealing ring bushing（6）With core sealing ring（7）；The core of the sealing plug is close
Seal nest（5）Inside it is provided with core sealing ring（7）；The core（3）Pass through four uniform core sealing rings（7）It is positioned at
The center of " ten " word passage；The core（3）Channel diameter be less than core（3）The half of diameter；The core（3）Top
It is provided with slot（8）, the knob（4）Insert the slot（8）It is interior and pass through rotating mechanism（9）Control conversion ball valve leads to
It is disconnected.
2. the conversion ball valve according to claim 1 for being easy to particulate matter conveying, it is characterised in that：The valve body（1）It is upper
Portion is provided with closure（10）, the rotating mechanism（9）It is arranged at the closure（10）Top；The rotating mechanism（9）
Including knob（4）, gear（11）, retainer nut（12）, knob bushing（13）, knob sealing ring（14）And stop washer（15）；
The closure（10）It is provided with and is used for fixed gear（11）The knob bushing of bottom position（13）With knob sealing ring（14）；Institute
State knob（4）It is provided with the fixed gear（11）The retainer nut of upper position（12）And stop washer（15）；The gear
（11）Pass through flat key（16）With the knob（4）Connection.
3. the conversion ball valve according to claim 2 for being easy to particulate matter conveying, it is characterised in that：The gear（11）Including
Drive gear（17）And driven gear（18）；The driven gear（18）Pass through the drive gear（17）Drive so as to carrying out
Rotate.
4. the conversion ball valve according to claim 3 for being easy to particulate matter conveying, it is characterised in that：The drive gear（17）
With the driven gear（18）Tooth be 120-270 degree tooth.
5. the conversion ball valve according to claim 3 for being easy to particulate matter conveying, it is characterised in that：The valve body（1）It is upper
Portion is provided with two and limits the drive gear（17）Rotate the spacer pin of 90 degree of positions（21）.
6. the conversion ball valve according to claim 1 for being easy to particulate matter conveying, it is characterised in that：The O-ring seal
（19）The embedded radial seal ring recess（20）It is interior；The sealing plug（2）One end of inside be hexagonal hole.
7. the conversion ball valve according to claim 1 for being easy to particulate matter conveying, it is characterised in that：The valve body（1）On set
It is equipped with four passages, seven channel interfaces.
8. the conversion ball valve according to claim 7 for being easy to particulate matter conveying, it is characterised in that：Six outer passages
On be provided with exterior line coordinate connection screw thread hole（22）.
9. the conversion ball valve according to claim 7 for being easy to particulate matter conveying, it is characterised in that：" ten " word intersecting channels are
Common-use tunnel interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309188.8A CN107830210A (en) | 2017-12-11 | 2017-12-11 | A kind of conversion ball valve for being easy to particulate matter conveying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309188.8A CN107830210A (en) | 2017-12-11 | 2017-12-11 | A kind of conversion ball valve for being easy to particulate matter conveying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107830210A true CN107830210A (en) | 2018-03-23 |
Family
ID=61642862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711309188.8A Withdrawn CN107830210A (en) | 2017-12-11 | 2017-12-11 | A kind of conversion ball valve for being easy to particulate matter conveying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107830210A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679266A (en) * | 2018-07-30 | 2018-10-19 | 宁波来特燃气具有限公司 | Two fire rows and the gas valve with ever-burning flame function can be controlled |
| CN112901825A (en) * | 2021-01-16 | 2021-06-04 | 徐利论 | Ultralow temperature valve with sealing mechanism |
| CN113007395A (en) * | 2021-03-01 | 2021-06-22 | 上海化工研究院有限公司 | Four-core eight-channel combined ball valve |
| CN114803233A (en) * | 2022-05-29 | 2022-07-29 | 南京慧龙城市规划设计有限公司 | Integrated underground logistics system and carrying method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990005166U (en) * | 1997-07-12 | 1999-02-05 | 이영호 | Valve with time adjustment |
| CN201764022U (en) * | 2010-09-10 | 2011-03-16 | 温州市金星阀门有限公司 | Multifunctional high-pressure needle valve |
| US20120211107A1 (en) * | 2011-02-18 | 2012-08-23 | Haunhorst Gregory A | Quick connect fluid coupling |
| CN205859216U (en) * | 2016-08-14 | 2017-01-04 | 宁波市博尔法液压有限公司 | Combined ball valve |
| CN207880120U (en) * | 2017-12-11 | 2018-09-18 | 天津开发区天水华源机电设备技术有限公司 | A kind of conversion ball valve |
-
2017
- 2017-12-11 CN CN201711309188.8A patent/CN107830210A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990005166U (en) * | 1997-07-12 | 1999-02-05 | 이영호 | Valve with time adjustment |
| CN201764022U (en) * | 2010-09-10 | 2011-03-16 | 温州市金星阀门有限公司 | Multifunctional high-pressure needle valve |
| US20120211107A1 (en) * | 2011-02-18 | 2012-08-23 | Haunhorst Gregory A | Quick connect fluid coupling |
| CN205859216U (en) * | 2016-08-14 | 2017-01-04 | 宁波市博尔法液压有限公司 | Combined ball valve |
| CN207880120U (en) * | 2017-12-11 | 2018-09-18 | 天津开发区天水华源机电设备技术有限公司 | A kind of conversion ball valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679266A (en) * | 2018-07-30 | 2018-10-19 | 宁波来特燃气具有限公司 | Two fire rows and the gas valve with ever-burning flame function can be controlled |
| CN108679266B (en) * | 2018-07-30 | 2024-03-01 | 宁波来特燃气具有限公司 | Gas valve capable of controlling two fire rows and having long open fire function |
| CN112901825A (en) * | 2021-01-16 | 2021-06-04 | 徐利论 | Ultralow temperature valve with sealing mechanism |
| CN113007395A (en) * | 2021-03-01 | 2021-06-22 | 上海化工研究院有限公司 | Four-core eight-channel combined ball valve |
| CN114803233A (en) * | 2022-05-29 | 2022-07-29 | 南京慧龙城市规划设计有限公司 | Integrated underground logistics system and carrying method |
| CN114803233B (en) * | 2022-05-29 | 2024-03-29 | 南京慧龙城市规划设计有限公司 | Integrated underground logistics system and carrying method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180323 |