CN106499837B - A kind of convertible Blowoff ball valve and method for discharging pollution for pressure flush toilet - Google Patents
A kind of convertible Blowoff ball valve and method for discharging pollution for pressure flush toilet Download PDFInfo
- Publication number
- CN106499837B CN106499837B CN201611108667.9A CN201611108667A CN106499837B CN 106499837 B CN106499837 B CN 106499837B CN 201611108667 A CN201611108667 A CN 201611108667A CN 106499837 B CN106499837 B CN 106499837B
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- spool
- ball valve
- sliding rack
- valve
- shell
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
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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
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
- F16K5/0647—Spindles or actuating means
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The present invention relates to a kind of convertible Blowoff ball valve and method for discharging pollution for pressure flush toilet, including shell, spool and sealing ring, dovetail groove and driving motor drive gear and driven gear.Sliding rack and two limit switches are installed on dovetail groove.The present invention solves the problems, such as the ball valve blowdown upper back foul taste out of pipeline in the process.The sealing ring configured on Blowoff ball valve is fixed on shell, and the sealing performance that can guarantee valve core inside space in wear-resistant coating, with sealing ring relative movement is arranged in valve core outer surface.Driving gear on driving motor is engaged with sliding rack, is engaged with the fixed driven gear together of spool with sliding rack.The power of driving motor output is transmitted to spool by driving gear, sliding rack and driven gear.Limit switch is respectively set in dovetail groove upper and lower ends, for detecting and the motion profile of limit slippage rack gear, to limit the angle that spool overturning opens and closes.
Description
Technical field
The present invention relates to a kind of Blowoff ball valve, especially a kind of convertible Blowoff ball valve for pressure flush toilet and
Method for discharging pollution.
Background technique
Blowoff ball valve is all that the inlet and outlet of ball valve is directly connected during the work time currently on the market, and dirt passes through
The discharge of ball valve conductive channel.When this blowdown mode is on pressure flush formula toilet, it be easy to cause on foul smell and returns, pollution is defended
Air between life and in compartment.Seriously affect the comfort level that passenger rides.
Notification number is the Chinese patent of CN1699801A, title " double seal valve ", discloses following technology: one kind is for quilt
Open function can be realized using lesser unlatching power in double seal valve used in the environment of flow control body two-way flow.It should
Valve include with inlet and outlet valve body, be arranged in the valve chamber of valve body and respectively with matched two sealing elements of inlet and outlet,
It is connected with synchronizing linkage between two sealing elements, is connected with pressure relief device between valve chamber and inlet and outlet.The valve subtracts significantly
Small switch torque, substantially reduces the volume of valve external manipulation mechanism and the requirement to power source, improves the operation of valve
Speed and service life.Also make valve realize two-way self-tightening sealing in two directions simultaneously, and is realized by synchronizing linkage
Lossless high-speed switch, improves valve internal operating mechanism reliability, reduces valve manufacture cost, be particularly suitable for
Big flow, high sealing performance, needs to use in intrinsic safety and the environment frequently switched at a high speed high pressure.
Above-mentioned valve as pressure flush toilet blowdown valve using not can solve asking of being returned during blowdown on foul smell
Topic；And since double sealing structure is to the obstruction of emissions, the problem of valve is adhered dirt or even blocks will cause.
Notification number is the Chinese patent of CN105508646A, title " self-sealing eccentric half-ball valve ", discloses following technology:
A kind of self-sealing eccentric half-ball valve, including valve body, are equipped with admission chamber in valve body, one end of valve body be equipped be connected to admission chamber into
Water hole, the other end are equipped with the apopore being connected to admission chamber, and body top is connected with valve deck, main valve axis, valve are connected on valve deck
Body bottom is equipped with secondary valve shaft, and the hemispherical valve plate being connected on main valve axis and secondary valve shaft is equipped in admission chamber, hemispherical valve plate
Elastic sealing layer is coated on surface, the elastic sealing layer of the hemispherical sealing surface of valve plate and the inner port position of inlet opening connect
The axial seal pair for realizing axial seal can be formed after touching cooperation；Elastic sealing layer on the hemispherical sealing surface of valve plate with into
The hole wall in water hole can form the radial seal pair with radial self-sealing effect after being engaged.The valve arrangement is simple, has axis
To sealing and radial seal double effects, leakage or leakage are not easily caused, and unlatching torque is small, can extend the service life of valve.
Above-mentioned valve is returned during blowdown and dirty using not can solve as the blowdown valve of pressure flush toilet on foul smell
The problem of object is adhered.
Summary of the invention
It is a kind of for pressure flush formula toilet the purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, providing
On, convertible hermetically sealed ball valve and method for discharging pollution for blowdown.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of convertible Blowoff ball valve for pressure flush toilet, including spool and motor, the motor driven
Gear rotation is driven, described one sliding rack of sliding tooth wheel drive moves up and down, and the sliding rack drives driven tooth
Wheel rotation, the rotation axis rotation of the described driven gear driving spool, the spool are mounted in a shell, and spool with
Rotation axis is axle center with respect to housing into rotation, and control sliding rack movement pole is provided with above and below the sliding rack
The upper limit switch and lower position switch of limit.
Further, the shell is ball valve shell, for fixed seal ring, dovetail groove etc. relative to the component not moved.
Shell is used to for ball valve and blow-off line and closet being connected and fixed simultaneously.
It further, further include the dovetail groove being fixed on shell, the sliding rack is in the dovetail groove
Inside slide up and down.
Further, the upper limit switch and lower position switch are separately fixed at the top and bottom of dovetail groove.
Further, by a sealing ring sealing between the shell and spool, the sealing ring uses wear-resisting material
Material has certain elastic sealing off gap that can be compensated automatically between spool.
Further, the spool is in hollow sphere structure, has wear-resistant coating outside spool, fits closely reality with sealing ring
Existing gas sealing structure；Valve core inside has anti-stick coating, can be relatively isolated from the sewage mixture of contact, adhesion.Spool
There is rotation axis at both ends, are axle center with respect to housing into rotation using rotation axis.Be fixed with driven gear in rotation axis, the spool and
Driven gear is relatively fixed.
Further, the sliding rack and dovetail groove guide rail cooperate, and can slide up and down along guide rail.Sliding rack respectively with
Driven gear and driving gear engagement, can will drive the torque of gear to be transmitted on driven gear, to drive valve core rotation.
Further, the driving motor is fixed on dovetail groove, is used for output power.Driving gear is fixed on driving electricity
In the shaft of machine.When driving motor rotates, driving gear then exports driving torque.
Further, the limit switch is separately fixed at the upper and lower ends of dovetail groove, for detecting and controlling slide teeth
The item up and down motion limit.When sliding rack moves upward to extreme position, then upper end limit switch is touched.Limit switch provides letter
Number, driving motor stops operating, and ball valve is in into dirty state at this time.When sliding rack is moved downwardly to extreme position, then touch
Lower end limit switch.Limit switch provides signal, and driving motor stops operating, and ball valve is in blowdown state at this time.
The method for carrying out blowdown using foregoing invention is as follows:
Spool is standby mode in opening upwards position, and starting the closet into dirty process, connecting with Blowoff ball valve upper end will
The sewage mixture rinsed imports valve core cavity, and valve core cavity is all flowed into sewage mixture in closet then into dirty process
It completes；
Then reverse starting motor, motor drives sliding rack to move downward by transmission device, so that spool be driven to revolve
Turn, be bonded outside spool with sealing ring, sewage mixture is isolated in the lumen；It is bonded simultaneously with sealing ring outside spool
The channel of Blowoff ball valve upper and lower ends is completely cut off；Motor continues working, when sliding rack slides into lower position, under touching at this time
Limit switch is held, motor stops working, and spool stops operating, and valve core opening is downward at this time, and the sewage mixture of valve core cavity exists
It is flowed out under gravity；
Spool stays for some time in this state, for vibrating the sewage mixture residue of valve core cavity in train driving
It is discharged under effect in the pipeline of lower end；
Hereafter positive starting, sliding rack move upwards motor again, and spool is then driven opening upwards rotation；Work as sliding
After rack gear touches upper end limit switch, upper end limit switch provides signal, and driving motor stops working；At this time valve core opening to
On, ball valve is in standby.
Beneficial effects of the present invention are as follows:
The present invention solves the problems, such as the ball valve blowdown upper back foul taste out of pipeline in the process.The sealing configured on Blowoff ball valve
Circle is fixed on shell, and valve core outer surface, which is arranged in wear-resistant coating, with sealing ring relative movement, can guarantee that valve core inside is empty
Between sealing performance.Driving gear on driving motor is engaged with sliding rack, with the fixed driven gear and cunning together of spool
Carry-over bar engagement.The power of motor output is transmitted to spool by driving gear, sliding rack and driven gear.Above and below dovetail groove
Limit switch is respectively set in both ends, for detecting and the motion profile of limit slippage rack gear, opens to limit spool overturning
With the angle of closing.Anti-stick coating is arranged in valve core inside space surface, and during blowdown, the mixture of dirt and water is easily
It can be with valve core inside coating segregation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1, Fig. 2 are overturning ball valve cores of the invention into dirty and blowdown two states figure；
Fig. 3, Fig. 4 are overturning ball valves of the invention into sliding rack, driving gear and driven gear position when dirty and blowdown
Relational graph；
Fig. 5 is overturning ball valve exterior axonometric drawing of the invention；
Wherein 1. shell, 2. sealing rings, 3. spools, 4. driving motors, 5. driving gears, 6. driven gears, 7. slide teeths
Item, 8. dovetail grooves, 9. upper end limit switches, 10 lower end limit switches.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
In order to solve the technical issues of background parts propose, the present invention discloses a kind of for pressure flush toilet the present invention
Convertible Blowoff ball valve and method for discharging pollution, whole scheme is as follows:
Its spool and motor, the motor driven driving gear rotation, described one slide teeth of sliding tooth wheel drive
Item moves up and down, the sliding rack driving driven gear rotation, the rotation axis rotation of the driven gear driving spool,
The spool is mounted in a shell, and spool is axle center with respect to housing into rotation using rotation axis, in the sliding rack
Above and below be provided with control sliding rack limit of sports record upper limit switch and lower position switch.
Specifically as shown in Figure 1-3, sealing ring 2 is fixed on inside shell 1.Spool 3 is bonded with sealing ring 2, on spool 3
Rotation axis and shell 1 cooperate.Spool 3 can be rotated relative to shell 1 along rotation axis.Driven gear 6 and spool 3 are relatively fixed, can
Power is transmitted as spool 3.
Dovetail groove 8 and shell 1 are relatively fixed.Dovetail groove 8 is that sliding rack 7 provides track, and such sliding rack 7 can edge
Track slides up and down.8 upper and lower ends of dovetail groove fix upper end limit switch 9 and lower end limit switch 10 respectively.Driving motor 4 with
Dovetail groove 8 is relatively fixed.A driving gear 5 is fixed on 4 output shaft of driving motor, is used for output power.
Sliding rack 7 is engaged with driving gear 5 and driven gear 6 respectively.
Shell 1 is ball valve shell, for fixed seal ring, dovetail groove etc. relative to the component not moved.Shell is used for simultaneously
Ball valve and blow-off line and closet are connected and fixed.
The dovetail groove 8 being fixed on shell, it is relatively fixed with shell 1, sliding rack 7 is upper and lower in the dovetail groove
Sliding.
Upper limit switch 9 and lower position switch 10 are separately fixed at the top and bottom of dovetail groove.
It is sealed between shell 1 and spool 3 by a sealing ring 2, the sealing ring 2 uses wear-resistant material, has certain
Elasticity can compensate sealing off gap between spool automatically.
Spool 3 is in hollow sphere structure, has wear-resistant coating outside spool, fits closely with sealing ring and realizes air seal knot
Structure；Valve core inside has anti-stick coating, can be relatively isolated from the sewage mixture of contact, adhesion.There is rotation axis at spool both ends,
It is axle center with respect to housing into rotation using rotation axis.Driven gear is fixed in rotation axis, the spool and driven gear are opposite
It is fixed.
Sliding rack 7 and 8 guide rail of dovetail groove cooperate, and can slide up and down along guide rail.Sliding rack respectively with driven gear and
Gear engagement is driven, the torque of gear can will be driven to be transmitted on driven gear, to drive valve core rotation.
Driving motor 4 is fixed on dovetail groove, is used for output power.Driving gear is fixed in the shaft of driving motor.
When driving motor rotates, driving gear then exports driving torque.
Limit switch is separately fixed at the upper and lower ends of dovetail groove, for detecting and controlling sliding rack up and down motion pole
Limit.When sliding rack moves upward to extreme position, then upper end limit switch is touched.Limit switch provides signal, driving motor
It stops operating, ball valve is in into dirty state at this time.When sliding rack is moved downwardly to extreme position, then touches lower end limit and open
It closes.Limit switch provides signal, and driving motor stops operating, and ball valve is in blowdown state at this time.
The course of work of Blowoff ball valve is as follows:
It is of the invention into dirty process are as follows: spool 3 is standby mode in opening upwards position, and sliding rack 7 slides at this time
Upper limit position simultaneously touches upper end limit switch 9.Start into after dirty process, the closet connecting with Blowoff ball valve upper end will rinse
Sewage mixture import 3 inner cavity of spool.3 inner cavity of spool is all flowed into sewage mixture in closet then to complete into dirty process.
Blowdown process of the invention are as follows:
Driving motor 4 starts, and driving gear 5 is driven to rotate output power.The sliding rack 7 engaged with driving gear is being turned round
Square acts on lower slide downward.Driven gear 6 is individually engaged with sliding rack 7, and sliding rack 7 drives driven gear 6 to rotate at this time.
Spool 3 rotates down under the drive of driven gear 6, is bonded outside spool with sealing ring, sewage mixture is isolated in inner cavity
In；The channels of Blowoff ball valve upper and lower ends is also completely cut off with being bonded for sealing ring outside spool simultaneously.I.e. Blowoff ball valve is worked
It will not be generated in journey and return phenomenon on foul smell.Driving motor 4 continues working, and when sliding rack 7 slides into lower position, touches at this time
Lower end limit switch 10, driving motor 4 stop working, and spool 3 stops operating.Open Side Down for spool 3 at this time, 3 inner cavity of spool
Sewage mixture flows out under the effect of gravity.
Spool 3 stays for some time in this state, for the sewage mixture residue of valve core cavity to shake in train driving
Movement is discharged in the pipeline of lower end under.
Hereafter 4 reverse starting of driving motor, sliding rack 7 move upwards, and spool 3 is then driven opening upwards rotation.When
After sliding rack touches upper end limit switch 9, upper end limit switch 9 provides signal, and driving motor 4 stops working.Spool 3 at this time
Opening upwards, ball valve are in standby.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (5)
1. a kind of convertible Blowoff ball valve for pressure flush toilet, which is characterized in that described including spool and motor
Motor driven drives gear rotation, and described one sliding rack of sliding tooth wheel drive moves up and down, and the sliding rack drives
Dynamic driven gear rotation, the rotation axis rotation of the driven gear driving spool, the spool are mounted in a shell, and
Spool is axle center with respect to housing into rotation using rotation axis, and control sliding rack is provided with above and below the sliding rack
The upper limit switch and lower position switch of limit of sports record；
A dovetail groove is fixed on the shell, the sliding rack slides up and down in the dovetail groove；
The upper limit switch and lower position switch is separately fixed at the top and bottom of dovetail groove；
The spool is in hollow sphere structure, has wear-resistant coating outside spool, fits closely with sealing ring and realizes air seal knot
Structure；Valve core inside has anti-stick coating, is relatively isolated from the sewage mixture of contact, adhesion.
2. being used for the convertible Blowoff ball valve of pressure flush toilet as described in claim 1, which is characterized in that the shell
For ball valve shell, the shell is for ball valve to be connect with blow-off line and closet.
3. being used for the convertible Blowoff ball valve of pressure flush toilet as described in claim 1, which is characterized in that the shell
Pass through a sealing ring sealing between spool.
4. being used for the convertible Blowoff ball valve of pressure flush toilet as claimed in claim 3, which is characterized in that the sealing
Circle uses wear-resistant material, has certain elastic sealing off gap that can be compensated automatically between spool.
5. the method that the convertible Blowoff ball valve as described in claim 1-4 is any carries out blowdown, it is characterised in that:
Spool is standby mode in opening upwards position, and starting the closet into dirty process, connecting with Blowoff ball valve upper end will rinse
The sewage mixture to get off imports valve core cavity, and it is then complete into dirty process that valve core cavity is all flowed into sewage mixture in closet
At；
Then on the one hand reverse starting motor, motor drive sliding rack to move downward by transmission device；On the other hand it drives
Spool rotating, spool outside are bonded with sealing ring, and sewage mixture is isolated in the lumen；Spool outside and sealing ring simultaneously
Fitting has also completely cut off the channel of Blowoff ball valve upper and lower ends；Motor continues working, when sliding rack slides into lower position, at this time
Lower end limit switch is touched, motor stops working, and spool stops operating, and valve core opening is downward at this time, and the sewage of valve core cavity is mixed
Object is closed to flow out under the effect of gravity；
Spool stays for some time in this state, for by the sewage mixture residue of valve core cavity in train driving effect of vibration
Under be discharged in the pipeline of lower end；
Hereafter positive starting, sliding rack move upwards motor again, and spool is then driven opening upwards rotation；Work as sliding rack
After touching upper end limit switch, upper end limit switch provides signal, and driving motor stops working；Valve core opening is upward at this time, ball
Valve is in standby.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611108667.9A CN106499837B (en) | 2016-12-06 | 2016-12-06 | A kind of convertible Blowoff ball valve and method for discharging pollution for pressure flush toilet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611108667.9A CN106499837B (en) | 2016-12-06 | 2016-12-06 | A kind of convertible Blowoff ball valve and method for discharging pollution for pressure flush toilet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106499837A CN106499837A (en) | 2017-03-15 |
| CN106499837B true CN106499837B (en) | 2018-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611108667.9A Active CN106499837B (en) | 2016-12-06 | 2016-12-06 | A kind of convertible Blowoff ball valve and method for discharging pollution for pressure flush toilet |
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| CN (1) | CN106499837B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107152554A (en) * | 2017-06-29 | 2017-09-12 | 重庆市金渝管道设备有限公司 | A kind of gear drive valve |
| CN107755639B (en) * | 2017-10-27 | 2019-07-30 | 兰州理工大学 | A kind of semiautomatic metal mold casting lathe |
| CN209041612U (en) * | 2018-09-18 | 2019-06-28 | 青岛格物正坊机电科技有限公司 | Vacuum excrement collector slide valve |
| CN110179413A (en) * | 2019-06-25 | 2019-08-30 | 深圳市杰深科技有限公司 | A kind of linkage driving formula mop cleaning seat drainage |
| CN112546751B (en) * | 2020-02-26 | 2022-07-19 | 苏州维格纳信息科技有限公司 | Energy-saving and environment-friendly high-rise building haze continuous treatment and purification device |
| CN111671377A (en) * | 2020-04-30 | 2020-09-18 | 朱洪福 | Ground cleaning robot |
| CN112460299B (en) * | 2020-11-25 | 2021-11-26 | 宁波方太厨具有限公司 | Water inlet joint and gas water heater comprising same |
| CN113606792A (en) * | 2021-06-28 | 2021-11-05 | 徐州山美环保科技发展有限公司 | Energy-saving and environment-friendly water boiler |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI94898C (en) * | 1993-03-23 | 1995-11-10 | Antero Parma | Valve |
| CN2647950Y (en) * | 2003-09-15 | 2004-10-13 | 李成彬 | Water saving straight flushing closet |
| CN201485944U (en) * | 2009-05-14 | 2010-05-26 | 刘爱东 | Water-saving pedestal pan |
| CN103148238B (en) * | 2013-04-10 | 2016-09-28 | 广东胜捷工业安全技术有限公司 | A kind of gas control valve for fire extinguishing nitrogen system |
| CN203363247U (en) * | 2013-05-22 | 2013-12-25 | 中国海洋石油总公司 | Rear ball valve device for pressure maintenance coring of natural gas hydrate |
| CN206221700U (en) * | 2016-12-06 | 2017-06-06 | 山东中车华腾环保科技有限公司 | A kind of convertible Blowoff ball valve for pressure flush toilet |
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2016
- 2016-12-06 CN CN201611108667.9A patent/CN106499837B/en active Active
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| CN106499837A (en) | 2017-03-15 |
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Address after: 250101 No. 3666 Century Avenue, hi tech Zone, Shandong, Ji'nan Patentee after: SHANDONG CRRC HUATENG ENVIRONMENT Co.,Ltd. Address before: Room 250101 A401 of Shandong province science and Technology Park of Ji'nan high tech Zone Shun Road No. 750 University Patentee before: SHANDONG CRRC HUATENG ENVIRONMENT Co.,Ltd. |
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Effective date of registration: 20230331 Address after: 215557 Zhengwen Road, Yushan High-tech Industrial Park, Changshu, Suzhou, Jiangsu Province Patentee after: Jiangsu CRRC Huateng Environmental Protection Technology Co.,Ltd. Address before: 250101 No. 3666 Century Avenue, Jinan High-tech Zone, Shandong Province Patentee before: SHANDONG CRRC HUATENG ENVIRONMENT Co.,Ltd. |